Cutting Guide Trolley and Cutting Device

Abstract

A cutting guide trolley and a cutting device belong a technical field of garden tools. The cutting guide trolley includes the frame and the walking assembly. The frame is configured to support the cutting assembly, and includes the mounting frame, a fixed frame located on the first side of the mounting frame, and a rotating frame located on the second side of the mounting frame opposite the fixed frame. The fixed frame includes the mounting portion attached to the mounting frame, and the rotating frame is rotatable relative to the mounting frame. The walking assembly is used for driving the cutting assembly to move relative to the surface to be cut, and includes the supporting wheel and the guiding wheel. The supporting wheel is arranged on the mounting frame, and the guiding wheel mounted on the rotating frame and positioned laterally adjacent to the cutting assembly.

Description

CROSS REFERENCE TO RELATED APPLICATION

The present application is a continuation application of PCT application No. PCT/CN2024/115727 filed on August 30, 2024, which claims the benefit of CN202311154348.1 filed on September 7, 2023, CN202322427754.2 filed on September 7, 2023, CN202322426574.2 filed on September 7, 2023, and CN202322428672.X filed on September 7, 2023. All the above are hereby incorporated by reference for all purposes.

TECHNICAL FIELD

The disclosure relates to a cutting guide trolley and a cutting device, which belongs to a technical field of garden tools.

BACKGROUND

The cutting guide trolley is a special vehicle for road maintenance and construction, and is used for mounting and supporting a cutting device and driving the cutting device to move relative to a surface to be cut.

The conventional cutting guide trolley has a large size, which causes a series of problems, including difficult transportation, difficult assembly, space limitation, and inconvenient operation, thereby reducing the practicability of the cutting guide trolley.

In view of this, it is necessary to provide a cutting guide trolley and a cutting device to solve the above problems.

SUMMARY

The disclosure provides a cutting guide trolley with a compact structure.

One or more embodiments of the disclosure provide the cutting guide trolley, and the cutting guide trolley includes a frame and a walking assembly.

The frame is configured to support a cutting assembly. The frame includes a mounting frame, a fixed frame located on a first side of the mounting frame, and a rotating frame located on a second side of the mounting frame opposite the fixed frame. The fixed frame is non-rotatably coupled to the mounting frame, and the rotating frame is rotatably coupled to the mounting frame.

The walking assembly is used for driving the cutting assembly to move relative to a surface to be cut, and includes a supporting wheel and a guiding wheel. The supporting wheel is arranged on the mounting frame, and the guiding wheel is mounted on the rotating frame and positioned laterally adjacent to the cutting assembly.

In some embodiments, the fixed frame includes a first handle disposed on the mounting frame and a second handle coupled to the first handle through a pivot joint and detachable from the first handle.

In some embodiments, the rotating frame includes an adjustment rod, a supporting rod and a guiding rod arranged in sequence, the guiding rod is connected to the guiding wheel, the supporting rod is mounted to the guiding rod and rotatably coupled to the mounting frame, and the adjustment rod is disposed at an end of the supporting rod away from the guiding rod and detachably coupled to the supporting rod.

In some embodiments, the cutting guide trolley further includes a starting device for actuating the cutting assembly. The starting device includes a starting member mounted on the second handle, a crank link including a first end connected to the starting member, and a fixed shaft connected to the cutting assembly and pivotably coupled to the crank link. A second end of the crank link, opposite the first end, is provided with a starting shaft positioned opposite a starting switch of the cutting assembly, and a rotation of the starting member causes the first end to rotate in a first direction and the second end to rotate in an opposite direction into abutment with the starting switch to actuate the cutting assembly.

In some embodiments, the cutting guide trolley further includes a cutting depth adjustment assembly, and the cutting depth adjustment assembly includes a functional plate and an adjustment structure. The functional plate is mounted on the fixed frame and includes a limiting portion provided with a plurality of spaced limiting slots, and the adjustment structure includes a rotating shaft disposed to the rotating frame and a crank rod pivotably coupled to the rotating shaft. The crank rod includes a latching portion at a side facing the limiting portion. During a rotation of the rotating frame relative to the fixed frame, the rotating shaft drives the crank rod to move relative to the functional plate, and during a movement of the crank rod, the latching portion is selectively disengaged from or engages with one of the limiting slots to adjust a distance between the guiding wheel and the surface to be cut.

In some embodiments, the functional plate further includes a limiting groove, the rotating shaft extends through the limiting groove and is disposed on the rotating frame, and the limiting groove constrains a movement path of the rotating shaft.

In some embodiments, the crank rod includes a driving end and a latching end, the rotating shaft is movably coupled between the driving end and the latching end, and the driving end and the latching end move in opposite directions about the rotating shaft.

In some embodiments, the rotating frame includes a grip and a movable member movably coupled to the grip via a rotation shaft, a connecting structure is disposed between the movable member and the driving end of the crank rod, and a movement of the movable member toward the grip drives the driving end toward the mounting frame via the connecting structure while the latching end moves in an opposite direction so that the latching portion disengages from the limiting slot.

In some embodiments, the cutting guide trolley further includes a direction adjustment assembly disposed between the guiding rod of the rotating frame and the guiding wheel, the direction adjustment assembly is disposed to the guiding rod, the guiding wheel is disposed to the guiding rod via the direction adjustment assembly, and the direction adjustment assembly is configured to adjust an offset angle of the guiding wheel relative to the frame.

In some embodiments, the direction adjustment assembly includes a sleeve disposed to the guiding rod of the rotating frame, a connecting shaft, a bearing and a limiting structure. The connecting shaft includes a fixed section located inside the sleeve and a free section located outside the sleeve and coupled to the guiding wheel, and a first clearance is defined between the fixed section and the sleeve. The bearing is disposed between the fixed section and the sleeve, and the connecting shaft is configured to pivot within the sleeve about the bearing. The limiting structure is mounted on the sleeve and extends through the sleeve into abutment with the connecting shaft to fix the connecting shaft relative to the sleeve.

In some embodiments, the direction adjustment assembly further includes a bushing, the bushing is disposed between the sleeve and the connecting shaft, and a second clearance is defined between the bushing and the connecting shaft.

In some embodiments, the cutting guide trolley further includes a lateral adjustment assembly. The lateral adjustment assembly is disposed on a side of the fixed frame facing the rotating frame, and the cutting assembly is connected to the fixed frame via the lateral adjustment assembly so that a traveling direction of the cutting assembly is adjustable by the lateral adjustment assembly.

In some embodiments, the lateral adjustment assembly includes a link mounted on the fixed frame, a sliding structure sleeved on the link, and an adjustment member. The cutting assembly is connected to the sliding structure, the adjustment member is in rotational engagement with the sliding structure, and a rotation of the adjustment member adjusts a distance between the sliding structure and the fixed frame to thereby adjust the traveling direction of the cutting assembly.

In some embodiments, the sliding structure includes a mating portion facing the adjustment member, the mating portion includes an extending wall extending towards the adjustment member and surrounding to form an accommodation cavity, an adjustment surface is provided on a side of the accommodation cavity facing the adjustment member, and the adjustment surface has a height differential along an extension direction of the extending wall.

The disclosure provides a cutting device with the cutting guide trolley mentioned above.

The disclosure provides a cutting device, and the cutting device includes the cutting guide trolley and the cutting assembly. The cutting guide trolley includes the frame and the walking assembly. The frame is configured to support the cutting assembly, and includes the mounting frame, the fixed frame is located on the first side of the mounting frame, and the rotating frame is located on the second side of the mounting frame opposite the fixed frame. The fixed frame includes the mounting portion attached to the mounting frame, and the rotating frame is rotatable relative to the mounting frame. The walking assembly is used for driving the cutting assembly to move relative to the surface to be cut, and includes the supporting wheel and the guiding wheel. The supporting wheel is arranged on the mounting frame, and the guiding wheel is mounted on the rotating frame and positioned laterally adjacent to the cutting assembly.

In some embodiments, the cutting assembly further includes a driving assembly connected to the fixed frame and configured to drive the cutting assembly to cut.

In some embodiments, the cutting guide trolley further includes a water tank disposed between the fixed frame and the rotating frame and located above the cutting assembly, the water tank being in fluid communication with a pipeline of the cutting assembly.

In some embodiments, the cutting assembly includes an anti-self-locking structure, the cutting device further includes a lateral adjustment assembly, the lateral adjustment assembly is disposed on a side of the fixed frame facing the rotating frame, the lateral adjustment assembly is interference-fitted with the anti-self-locking structure, and when the lateral adjustment assembly is mounted to the fixed frame, the anti-self-locking structure is in an unlocked state.

In some embodiments, the lateral adjustment assembly includes a link, a sliding structure and an adjustment member, the cutting assembly is secured to the sliding structure, the adjustment member is in threaded rotational engagement with the sliding structure, and a rotation of the adjustment member adjusts a distance between the sliding structure and the fixed frame to thereby adjust a left-right offset direction of the cutting assembly relative to the cutting guide trolley.

In some embodiments, the guiding wheel is mounted to the rotating frame via a direction adjustment assembly, and the direction adjustment assembly is configured to adjust an offset angle of the guiding wheel relative to the frame.

The disclosure has the following beneficial effects: in the cutting guide trolley of the disclosure, the fixed frame is arranged on the first side of the mounting frame and the rotating frame is arranged on the second side of the mounting frame opposite the fixed frame, the fixed frame is non-rotatably coupled to the mounting frame, the rotating frame is rotatably coupled to the mounting frame, and the guiding wheel is mounted on the rotating frame, so that structural parts of the cutting guide trolley can be reduced, the overall structure is compact, and a mounting and transportation are convenient, and at the same time, a distance of the guiding wheel relative to the surface to be cut can be adjusted by adjusting the rotating frame, thereby adjusting a cutting depth of the cutting assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective structural view of a cutting device according to at least one embodiment of the disclosure.

FIG. 2 is a perspective schematic view of a cutting device in FIG. 1 from a second view.

FIG. 3 is a perspective schematic view of a cutting guide trolley in FIG. 1.

FIG. 4 is a second perspective schematic view of a cutting guide trolley in FIG. 1.

FIG. 5 is a perspective schematic view of a cutting device in FIG. 1 from a third view.

FIG. 6 is an enlarged view of a portion D in FIG. 5.

FIG. 7 is a partial perspective schematic view of a cutting device in FIG. 4.

FIG. 8 is an enlarged view of a portion E in FIG. 7.

FIG. 9 is a partial perspective schematic view of a cutting assembly in FIG. 1.

FIG. 10 is an exploded view of a direction adjustment assembly in FIG. 3.

FIG. 11 is a cross-section view of a direction adjustment assembly in FIG. 3.

FIG. 12 is an exploded view of a bearing in FIG. 10.

FIG. 13 is a perspective structural view of a connecting shaft in FIG. 10.

FIG. 14 is a perspective schematic view of a cutting guide trolley in FIG. 1.

FIG. 15 is a perspective structural view of a sliding structure in FIG. 14.

FIG. 16 is a perspective structural view of an adjustment member in FIG. 14.

FIG. 17 is an enlarged view of a portion A in FIG. 1.

FIG. 18 is an enlarged view of a portion B in FIG. 4.

FIG. 19 is an enlarged view of a portion C in FIG. 4.

FIG. 20 is a perspective structural view of a crank rod in FIG. 19.

FIG. 21 is a perspective structural view of a cutting guide trolley according to another one embodiment of the disclosure.

FIG. 22 is an enlarged view of a portion F in FIG. 21.

PART NUMBER DESCRIPTION

100-cutting device, 200-surface to be cut, 10-cutting guide trolley, 1-direction adjustment assembly, 11-connecting shaft, 111-free section, 112-connecting section, 113-fixed section, 114-groove, 12-bearing, 121-abutment member, 122-rotating cavity, 123-rotating member, 124-shaft hole, 125-arc surface, 13-bushing, 141-first clearance, 142-second clearance, 15-sleeve, 151-inner cavity, 152-fixed hole, 153-abutment groove, 16-limiting structure, 161-fixing member, 17-end cover, 18-fastener;

2-guiding wheel, 3-supporting wheel, 5-cutting depth adjustment assembly, 41-functional plate, 411-limiting portion, 412-limiting slot, 413-limiting groove, 414-sliding groove, 42-adjustment structure, 421-rotating shaft, 422-crank rod, 423-driving end, 424-driving plate, 425-driving hole, 426-latching end, 427-latching portion, 428-first wiring portion, 431-grip, 432-movable member, 4321-rotation shaft, 4322-adjustment portion, 4323-connecting portion, 44-connecting structure, 441-housing, 442-connecting wire, 45-sliding post, 451-second wiring portion, 46-reset member, 47-scale, 48-instruction member;

5-lateral adjustment assembly, 51-link, 511-locking member, 512-gasket, 513-control groove, 52-elastic member, 53-sliding structure, 521-sliding hole, 532-outer housing, 54-adjustment member, 541-link hole, 542-adjustment block, 543-second anti-skid portion, 5431-latching block, 545-positioning mark, 546-operating portion, 55-mating portion, 551-extending wall, 552-adjustment surface, 553-first anti-skid portion, 554-gear rack, 555-gear groove, 556-accommodation cavity, 557-separation plate, 558-positioning groove;

6-frame, 61-mounting frame, 611-bottom plate, 612-fixed rod, 613-mounting shaft, 614-fine-adjustment structure, 6141-fine-adjustment frame, 6142-fixing nut, 615-fender, 62-rotating frame, 622-supporting rod, 623-guiding rod, 624-second adjustment knob, 625-sleeve rod, 626-fixed assembly, 63-fixed frame, 631-first handle, 6311-first meshing portion, 632-second handle, 6321-second meshing portion, 633-first adjustment knob, 64-starting device, 641-crank link, 642-second end, 643-starting shaft, 644-first end, 645-fixed shaft, 646-return member, 647-handle, 648-starter, 649-starting wire, 65-accommodating space, 66-water tank mounting frame;

7-cutting assembly, 71-lifting handle, 72-rear handle, 73-power switch, 74-starting switch, 75-anti-self-locking structure, 8-driving assembly, 81-battery accommodating portion, 9-water tank.

DETAILED DESCRIPTION

To enable objectives, technical solutions, and advantages of the disclosure to be clearer, the following describes the disclosure in detail with reference to the accompanying drawings and specific embodiments.

Please refer to FIG. 1 through FIG. 19, the disclosure provides a cutting device 100 for cutting a surface to be cut 200, such as, cutting a concrete layer, a cement layer and the like laid on the surface to be cut 200, and of course, it may also be used for cutting materials such as tiles and stones, which is not limited thereto.

In this embodiment, the cutting device 100 includes a cutting guide trolley 10 and a cutting assembly 7 disposed on the cutting guide trolley 10. The cutting guide trolley 10 is configured to mount the cutting assembly 7 and drive the cutting assembly 7 to move relative to the surface to be cut 200.

The cutting guide trolley 10 includes a direction adjustment assembly 1, a walking assembly, a cutting depth adjustment assembly 4, a lateral adjustment assembly 5, and a frame 6. The frame 6 is configured to mount and support the cutting guide trolley 10 and provide a mounting base for the above components. The walking assembly is disposed on a side of the frame 6 close to the surface to be cut 200, and includes a guiding wheel 2 and a supporting wheel 3. An arrangement of the walking assembly enables the frame 6 to move on the surface to be cut 200 on one hand, and on the other hand, supports the frame 6. The direction adjustment assembly 1 is configured to adjust an offset angle of the guiding wheel 2 relative to the frame 6, so that the guiding wheel 2 can be deflectable relative to the frame 6 to adjust a moving direction of the cutting guide trolley 10. The cutting depth adjustment assembly 4 is configured to adjust a distance between the guiding wheel 2 and the surface to be cut 200, so as to adjust a depth of cutting the surface to be cut 200 by the cutting assembly 7, and the lateral adjustment assembly 5 is configured to finely adjust the cutting assembly 7 to left and right, thereby ensuring that traveling directions of the cutting assembly 7 and the cutting guide trolley 10 are parallel. Of course, in other embodiments, the cutting guide trolley 10 may not include all the above parts, as long as the cutting guide trolley 10 includes parts that can meet a purpose of the disclosure.

The frame 6 includes a mounting frame 61, a fixed frame 63 and a rotating frame 62. The fixed frame 63 is located on a first side of the mounting frame 61 and the rotating frame 62 is located on a second side of the mounting frame 61 opposite the fixed frame 63.

The mounting frame 61 provides the support and the mounting base for the cutting guide trolley 10. The mounting frame 61 includes a bottom plate 611, a fixed rod 612, and a mounting shaft 613. The bottom plate 611 is disposed close to the surface to be cut 200 (for example, a ground) and is parallel to the surface to be cut 200, so as to improve a connection strength of the frame 6. The cutting assembly 7 is fixedly mounted on the bottom plate 611. In an embodiment, the bottom plate 611 includes a fixing groove, a bottom of the cutting assembly 7 is fixed in the fixing groove, so that the cutting assembly 7 is fixed on the bottom plate 611, and the fixing groove may also be designed to be compatible with cutting assemblies 7 of different sizes. Two supporting wheels 3 are fixedly coupled to the bottom plate 611 through the mounting shaft 613 to support the cutting guide trolley 10 and facilitate walking of the cutting guide trolley 10. A first end of the fixed rod 612 is fixedly coupled to the fixed frame 63, and a second end of the fixed rod 612 is rotatably and detachably coupled to the rotating frame 62.

Further, the mounting frame 61 further includes a fine-adjustment structure 614 for adjusting a distance of the bottom plate 611 relative to the two supporting wheels 3, thereby changing a distance between the cutting assembly 7 and the two supporting wheels 3, so as to allow the cutting assembly 7 to approach a wall more closely from either side, which increases a cutting range.

The fine-adjustment structure 614 includes a fine-adjustment frame 6141 and a fixing nut 6142. The fine-adjustment frame 6141 is sleeved on the mounting shaft 613. The fine-adjustment frame 6141 includes two extending arms arranged symmetrically and a connecting arm disposed between the two extending arms. The two extending arms are both sleeved on the mounting shaft 613, the connecting arm includes a plurality of first mounting holes, and the bottom plate 611 also includes a plurality of second mounting holes at positions corresponding to the plurality of first mounting holes. The fixing nut 6142 passes through any pair of the first mounting hole and the second mounting hole to fix the bottom plate 611 on the mounting shaft 613. When it is necessary to enable the cutting assembly 7 to be closer to a left supporting wheel 3, the cutting assembly 7 can cut closer to a left wall through adjusting the fine-adjustment frame 6141 to enable the cutting assembly 7 to be close to the left supporting wheel 3 and fixing the cutting assembly 7 through the fixing nut 6142, and vice versa.

Further, the mounting frame 61 further includes a fender 615. An end of the bottom plate 611 close to the cutting assembly 7 extends away from the cutting assembly 7 to form the fender 615. Through arranging the fender 615, dust-proof and splash-proof requirements of the cutting assembly 7 during operation may be met.

The fixed frame 63 is fixedly coupled to the mounting frame 61. For example, the fixed frame 63 and the mounting frame 61 may be combined into an assembly body or a welded body that does not move relative to each other. The rotating frame 62 is rotatably coupled to the mounting frame 61. With this arrangement, structural parts of the cutting guide trolley 10 may be reduced, so that an overall structure is compact and convenient for mounting and transportation. Further, the rotating frame 62 can move relative to the fixed frame 63, and an angle between the rotating frame 62 and the fixed frame 63 can be adjusted via the cutting depth adjustment assembly 4.

The fixed frame 63 is formed through the mounting frame 61 extending backward and upward, so as to serve as a main handle assembly of the cutting guide trolley 10, which is convenient for a user to push and control the cutting assembly 7. The fixed frame 63 includes a first handle 631 and a second handle 632. The first handle 631 is disposed on the mounting frame. The second handle 632 is coupled to the first handle 631 through a pivot joint and detachable from the first handle 631. One end of the second handle 632 away from the first handle 631 is bent to form a main handle for the user to push. Through a pivot joint between the first handle 631 and the second handle 632, an angle between the second handle 632 and the first handle 631 may be adjusted, so that a height of the main handle assembly of the cutting guide trolley 10 may be adjusted, and height requirements of users of different heights on the main handle assembly may be met. In addition, the pivot joint between the first handle 631 and the second handle 632 also facilitates a rotatable folding or detachable assembly of the fixed frame 63 with a joint of the first handle 631 and the second handle 632 as the center, thereby minimizing a packaging of the cutting guide trolley 10 and facilitating the transportation and mounting thereof.

Further, the first handle 631 includes a first meshing portion 6311, the second handle 632 includes a second meshing portion 6321, and the first meshing portion 6311 and the second meshing portion 6321 are meshed with each other via gears, so that a connection between the first handle 631 and the second handle 632 is more stable.

Further, a first adjustment knob 633 is disposed at the joint of the first handle 631 and the second handle 632. After the first handle 631 and the second handle 632 are adjusted according to the height of the user, the angle between the first handle 631 and the second handle 632 is fixed through the first adjustment knob 633, thereby improving a connection stability of the first handle 631 and the second handle 632. In addition, through the first adjustment knob 633, a quick folding of the first handle 631 and the second handle 632 may also be achieved, which facilitates a quick disassembly and mounting of the cutting guide trolley 10 and minimizes the packaging.

The rotating frame 62 includes the adjustment rod 621, the supporting rod 622 and the guiding rod 623 arranged in sequence. Wherein, a sleeve rod 625 is formed through extending a joint between the supporting rod 622 and the guiding rod 623 toward the mounting frame 61, and the sleeve rod 625 is sleeved on the fixed rod 612. The rotating frame 62 is rotatably coupled to and detachable from the mounting frame 61 through the sleeve rod 625. The supporting rod 622 and the guiding rod 623 are fixedly coupled to each other and arranged at an angle, and in some embodiments, the angle is an obtuse angle to facilitate the user to push. The guiding rod 623 is fixedly coupled to the guiding wheel 2, so as to adjust a distance between the guiding wheel 2 and the surface to be cut 200 by adjusting a height of the guiding rod 623 relative to the surface to be cut 200, thereby adjusting a cutting depth of the cutting assembly 7.

The adjustment rod 621 is disposed at an end of the supporting rod 622 away from the guiding rod 623, and detachable from the supporting rod 622, which facilitates the detachable assembly of the rotating frame 62 with the joint between the adjustment rod 621 and the supporting rod 622 as the center, thereby minimizing the packaging of the cutting guide trolley 10 and facilitating the transportation and mounting thereof.

In addition, the first adjustment knob 633 is disposed at the joint of the adjustment rod 621 and the supporting rod 622, so that a quick disassembly and the quick folding of the adjustment rod 621 and the supporting rod 622 may also be achieved, which facilitates the quick disassembly and mounting of the cutting guide trolley 10 and minimizes the packaging.

In another embodiment, the adjustment rod 621 is coupled to the supporting rod 622 through a pivot joint, the adjustment rod 621 includes a third meshing portion, the supporting rod 622 includes a fourth meshing portion, and the third meshing portion and the fourth meshing portion are meshed with each other through a gear. In this way, the angle between the adjustment rod 621 and the supporting rod 622 may be adjusted, thereby meeting the height requirements of users of different heights for the rotating frame 62. In addition, the pivot joint between the adjustment rod 621 and the supporting rod 622 also facilitates a rotatable folding or detachable assembly of the rotating frame 62 with a joint between the adjustment rod 621 and the supporting rod 622 as the center, thereby minimizing the packaging of the cutting guide trolley 10 and facilitating the transportation and mounting thereof. Structures of the third meshing portion and the fourth meshing portion are the same as structures of the first meshing portion 6311 and the second meshing portion 6321, and may be different in other embodiments.

Further, a second adjustment knob 624 is disposed at the joint of the adjustment rod 621 and the supporting rod 622. After the adjustment rod 621 and the supporting rod 622 are adjusted according to the height of the user, the angle between the adjustment rod 621 and the supporting rod 622 is fixed through the first adjustment knob 633, thereby improving a connection stability of the adjustment rod 621 and the supporting rod 622. In addition, through the second adjustment knob 624, a quick folding of the adjustment rod 621 and the supporting rod 622 may also be achieved, which facilitates the quick disassembly and mounting of the cutting guide trolley 10 and minimizes the packaging.

The frame 6 defines an accommodating space 65. The cutting assembly 7 and a water tank 9 are both accommodated in the accommodating space 65 and are respectively coupled to the frame 6. In addition, the combined weight of the frame 6, the cutting assembly 7, and the water tank 9 automatically provides a downward pressing force on the cutting assembly 7, thereby maintaining operational balance of the cutting device 100, increasing cutting efficiency, and improving handling comfort..

The water tank 9 is disposed between the fixed frame 63 and the rotating frame 62 and located above the cutting assembly 7, which means that the water tank 9 is located at a top of the frame 6 and is in fluid communication with a pipeline of the cutting assembly 7. A water tank mounting frame 66 is disposed on a side of the second handle 632 facing the accommodating space 65, and the water tank 9 is disposed on the water tank mounting frame 66 and fixedly coupled to the frame 6. The water tank 9 supplies water to the cutting assembly 7 through a water pipe to cool the cutting assembly 7, so as to prolong a service life of the cutting assembly 7, and further, the cutting assembly 7 can be dedusted to avoid a large amount of dust generated during operation of the cutting assembly 7.

The cutting assembly 7 further includes a driving assembly 8, and the driving assembly 8 may drive the cutting assembly 7 to cut. The cutting assembly 7 includes a rear handle 72 and a lifting handle 71, and the cutting assembly 7 is fixedly coupled to the fixed frame 63 through fixedly coupling the rear handle 72 to the fixed frame 63. Wherein, the driving assembly 8 and the rear handle 72 are integrally formed or fixedly coupled.

The driving assembly 8 includes a battery accommodating portion 81 and a battery pack (not shown) accommodated in the battery accommodating portion 81, and the cutting assembly 7 is powered by the battery pack to drive the cutting assembly 7 to cut, thereby cutting the surface to be cut 200. In an embodiment, the rear handle 72 of the cutting assembly 7 includes a power switch 73 and a starting switch 74, when the battery pack is accommodated in the battery accommodating portion 81, the power switch 73 is pressed to power the battery pack and the starting switch 74, then the starting switch 74 is pressed, and the battery pack supply power to the cutting assembly 7 to drive the cutting assembly 7 to rotate, thereby cutting the surface to be cut 200.

Please refer to FIG. 6 through 8 in combination with FIG. 1 through 5, the cutting guide trolley 10 further includes a starting device 64 to conveniently start the cutting assembly 7 and improve the operating experience.

The starting device 64 includes a crank link 641 and a fixed shaft 645. The fixed shaft 645 is fixedly coupled to the rear handle 72 of the cutting assembly 7 and pivotably coupled to the crank link 641, so that the crank link 641 can rotate relative to the fixed shaft 645.

The crank link 641 includes a first end 644 and a second end 642 disposed opposite to each other. The first end is configured to be coupled to the starting assembly, and the second end is configured to abut against the starting switch 74. A starting shaft 643 is disposed on the second end 642, the starting shaft 643 is disposed opposite to the starting switch 74, and when the crank link 641 rotates, the starting shaft 643 can be driven to rotate, and the starting shaft 643 can compress the starting switch 74 to start the cutting assembly 7.

The starting device 64 includes a return member 646. The crank link 641 includes the first end 644 disposed on the crank link 641 away from the second end 642. A first end of the return member 646 is connected to the first end 644, and a second end of the return member 646 is coupled to the cutting assembly 7. When the crank link 641 rotates until the starting shaft 643 abuts against the starting switch 74 under an external force, the return member 646 is stretched, and after the external force disappears, the crank link 641 rotates in an opposite direction under an action of the return member 646 to return to an initial position.

The starting device 64 further includes a starting assembly disposed on the second handle 632 of the fixed frame 63 and fixedly coupled to the first end 644 of the crank link 641 to drive the first end 644 to move. When the starting member drives the first end 644 to rotate, the second end 642 rotates in an opposite direction into abutment with the starting switch to actuate the cutting assembly 7.

The starting member includes a handle 647, a starter 648 and a starting wire 649. Wherein, the handle 647 is disposed at an end of the adjustment rod 621 and is fixedly coupled to the adjustment rod 621. The starter 648 is coupled to the handle 647 through a pivot joint. A first end of the starting wire 649 is coupled to the starter 648, and a second end of the starting wire 649 is coupled to the first end 644. When the starter 648 moves toward the handle 647, the starting wire 649 is pulled, and the crank link 641 rotates around the fixed shaft 645 to start the cutting assembly 7. In some embodiments, the starting wire 649 is a brake wire, and the return member 646 is a torsion spring.

Of course, in this embodiment, a limiting device (not shown) may also be disposed between the starter 648 and the handle 647, and a distance between the starter 648 and the handle 647 is limited via the limiting device. In an embodiment, the starter 648 is limited to move in a direction away from the handle 647, so that the starting shaft 643 keeps pressing the starting switch 74, and the cutting assembly 7 continuously rotates. A specific structure and limiting mode of the limiting device may be set according to actual conditions, or the limiting device may be disposed at other positions, which is not limited thereto.

This means that when the cutting assembly 7 needs to be started, an external force is applied to the starter 648, so that the starter 648 can move toward the handle 647, then the crank link 641 is pulled through the starting wire 649, the crank link 641 rotates around the fixed shaft 645, and the return member 646 is stretched back until the starting shaft 643 abuts against the starting switch 74. Then the cutting assembly 7 rotates, and the external force applied to the starter 648 is canceled, and the crank link 641 returns to the initial position under a driving of the return member 646, so that the cutting assembly 7 stops rotating.

Please refer to FIG. 9 combined with FIG. 15. An anti-self-locking structure 75 is arranged on the rear handle 72 of the cutting assembly 7. The cutting guide trolley 10 further includes the lateral adjustment assembly 5, the lateral adjustment assembly 5 is disposed on a side of the fixed frame 63 facing the rotating frame 62. The outer housing 532 of the lateral adjustment assembly 5 is in interference fit with the anti-self-locking structure 75. When the lateral adjustment assembly 5 is mounted to the fixed frame 63, the anti-self-locking structure 75 is in an unlocked state. With this arrangement, after the lateral adjustment assembly 5 is mounted in place, the anti-self-locking structure 75 is pressed down at the same time, so that the anti-self-locking structure 75 is in a pressed and unlocked state, and the cutting assembly 7 may be started for cutting only by pressing the starter 648, which is convenient in structure, and no other structure is required to press down the anti-self-locking structure 75.

Further, the cutting guide trolley 10 is a three-wheel configuration, the two supporting wheels 3 are disposed behind the frame 6 and disposed in parallel, and one guiding wheel 2 is disposed in front of the frame 6 for a front guide. The guiding wheel 2 is disposed on the guiding rod 623 of the rotating frame 62 and positioned laterally adjacent to the cutting assembly 7 at a bottom of the frame 6 to adjust a distance between the cutting assembly 7 and the surface to be cut 200. An offset angle of the guiding wheel 2 is adjusted by the direction adjustment assembly 1, and the moving direction of the cutting guide trolley 10 can also be adjusted. Further, the guiding wheel 2 and the cutting assembly 7 are spaced apart to prevent the cutting assembly 7 from damaging the guiding wheel 2 during operation.

Please refer to FIG. 1 through FIG. 3 and FIG. 14. In order to improve a stability of the cutting assembly 7 on the frame 6, a fixed assembly 626 is further disposed between the frame 6 and the cutting assembly 7. In an embodiment, the fixed assembly 626 includes a fixed rotation shaft disposed on the rotating frame 62 and a rotary handle coupled to the fixed rotation shaft through a pivot joint. Wherein, the rotary handle includes a first handle and a second handle arranged at an angle. Wherein, the first handle is configured to be held by the user, and the second handle is configured to abut against the handle 71 of the cutting assembly 7 to improve a mounting stability of the cutting assembly 7.

Further, a metal elastic sheet is disposed below the fixed rotation shaft, and a protruding portion is disposed on the metal elastic sheet. A first abutment groove and a second abutment groove are respectively disposed on a bottom and a side of the first handle. When the first handle is pressed downward so that the second handle abuts against the handle 71, the first abutment groove is engaged with the protruding portion, and at this time, the rotary handle is in a pressed and fixed state. When the first handle is lifted upward so that the second handle is disengaged from the handle 71, the second abutment groove is engaged with the protruding portion, and at this time, the rotary handle is in a released state. Through providing the first abutment groove, the second abutment groove and the protruding portion, the user has a feedback of sound and hand feeling when pressing in place, and has a better use experience.

Please refer to FIG. 1, FIG. 3 and FIG. 10 through FIG. 13. The direction adjustment assembly 1 is arranged at an end of the guiding rod 623 away from the supporting rod 622, and includes a connecting shaft 11, a sleeve 15, a bearing 12 and a limiting structure 16. Wherein, the sleeve 15 is fixedly coupled to the guiding rod 623, and the connecting shaft 11 is at least partially located in the sleeve 15 and partially exposed outside the sleeve 15 to be fixedly coupled to the guiding wheel 2. There is a first clearance 141 between the connecting shaft 11 and the sleeve 15, a bearing 12 is disposed between the connecting shaft 11 and the sleeve 15, and the connecting shaft 11 is configured to pivot within the sleeve 15 about the bearing 12. A limiting structure 16 is disposed on the sleeve 15 and passes through the sleeve 15 to abut against the connecting shaft 11 to fix the offset angle between the connecting shaft 11 and the sleeve 15.

The offset angle of the guiding wheel 2 is adjusted through adjusting the offset angle of the connecting shaft 11 relative to the sleeve 15 by partially locating the connecting shaft 11 in the sleeve 15 and connecting the other end of the connecting shaft 11 to the guiding wheel 2. Moreover, the sleeve 15 is fixedly coupled to the guiding rod 623 of the frame 6, and the guiding wheel 2 is coupled to the frame 6 through the connecting shaft 11 and the sleeve 15 to support the frame 6 and adjust a traveling direction of the frame 6. Through the bearing 12 and the limiting structure 16, the connecting shaft 11 can be configured to pivot within the sleeve 15 about the bearing 12, so as to adjust a direction of the connecting shaft 11 relative to the sleeve 15. Through a mutual cooperation of the limiting structure 16 and the connecting shaft 11, the offset angle of the connecting shaft 11 relative to the bearing 12 is fixed, which improves a connection stability of the connecting shaft 11 and the sleeve 15, and realizes a convenient adjustment of a traveling direction of the guiding wheel 2, so that the supporting wheel 3 and the guiding wheel 2 are kept parallel to each other, a linear movement of the cutting guide trolley 10 is realized, and the supporting wheel 3 and the guiding wheel 2 are locked to enable the cutting guide trolley 10 to walk linearly and cut.

In an embodiment, the guiding rod 623 is fixedly coupled to the sleeve 15 and is coupled to a middle position of the sleeve 15, and the sleeve 15 may be integrally formed with the frame 6, or the sleeve 15 and the frame 6 may be fixedly coupled through welding. Wherein, an arrangement direction of the sleeve 15 is parallel to the surface to be cut 200 and perpendicular to the traveling direction of the cutting guide trolley 10, so that a rotating direction of the guiding wheel 2 can be parallel to the traveling direction of the cutting guide trolley 10.

The sleeve 15 is cylindrical, which is in a hollow structure, includes a circular inner cavity 151, and the connecting shaft 11 is at least partially mounted in the inner cavity 151 and may be deflectable in the inner cavity 151.

The sleeve 15 includes a plurality of fixed holes 152, and the plurality of fixed holes 152 are evenly distributed along an outer peripheral surface of the sleeve. The fixed hole 152 and the fixing member 161 together form a limiting structure 16 to fix the connecting shaft 11 in the sleeve 15 through the limiting structure 16.

The connecting shaft 11 is cylindrical and includes a free section 111, a fixed section 113, and a connecting section 112 disposed between the fixed section 113 and the free section 111. Wherein, a diameter of the fixed section 113 is greater than a diameter of the connecting section 112 and also greater than a diameter of the free section 111.

The fixed section 113 and part of the connecting section 112 are disposed in the sleeve 15, and a diameter of the inner cavity 151 of the sleeve 15 is greater than the diameter of the fixed section 113, which means that the first clearance 141 is located between the fixed section 113 and the inner wall of the sleeve 15. Through the first clearance 141, it is convenient to mount the connecting shaft 11 in the sleeve 15, and at the same time, it is convenient to use an external tool to mount the connecting shaft 11, so that the connecting shaft 11 is kept at the initial position during assembly, and the guiding wheel 2 can be accurately positioned at an ideal position during assembly.

A groove 114 is disposed on a side of the fixed section 113 away from the connecting section 112. The groove 114 is formed through concave inward from an outer surface of the fixed section 113, and is disposed corresponding to the fixed hole 152 on the sleeve 15. The fixed hole 152 penetrates through the sleeve 15 and is disposed opposite to the groove 114, so that one end of the fixing member 161 can pass through the fixed hole 152 and extend into the groove 114 to abut against a bottom of the groove 114, so as to limit a distance between the connecting shaft 11 and the sleeve 15, thereby realizing a fixing between the connecting shaft 11 and the sleeve 15. In some embodiments, the fixing member 161 is a hexagonal screw, the hexagonal screw includes a stud and an external thread arranged on the stud, and the stud abuts against the bottom of the groove 114. An internal thread is disposed on the fixed hole 152, and a length of the stud extending into the sleeve 15 is adjusted through a threaded connection between the stud and the fixed hole 152, thereby adjusting the distance between the connecting shaft 11 and the sleeve 15. The groove 114 is arranged in a circular groove shape, and a width of the groove 114 is not less than a diameter of the stud, so that the stud can extend into the groove 114 and abut against the bottom of the groove 114.

The groove 114 is annularly disposed on an outer surface of the fixed section 113 of the connecting shaft 11. There are at least three limiting structures 16, and the at least three limiting structures 16 are evenly distributed along the outer peripheral surface of the sleeve 15. This means that there are at least three fixed holes 152 disposed on the outer peripheral surface of the sleeve 15, and the fixed holes 152 are evenly distributed on the sleeve 15 and correspond to the grooves 114.

In some embodiments, there are four fixed holes 152, and the four fixed holes 152 are evenly distributed on the outer peripheral surface of the sleeve 15. Accordingly, in a diameter direction of the sleeve 15, the angle between two adjacent fixed holes 152 is 90°, and two fixed holes 152 arranged oppositely are arranged on a same straight line. Of course, in other embodiments, there may be three holes 152, and at this time, the angle between the two adjacent holes 152 is 120°, and there may also be five, six and other numbers of holes 152, which is not limited thereto.

In this embodiment, the groove 114 is annularly disposed on an outer surface of the connecting shaft 11, so that the connecting shaft 11 can rotate in the sleeve 15, and regardless of the rotating angle, the fixing member 161 can extend into the groove 114 to fix the distance between the connecting shaft 11 and the sleeve 15. Of course, in other embodiments, the groove 114 may be disposed as a blind hole, a tangent plane or other limiting devices, and the fixed hole 152 is disposed corresponding to the blind hole. The groove 114 may not be disposed on the connecting shaft 11, and the fixing member 161 may directly abuts against an outer wall surface of the connecting shaft 11, which is not limited thereto.

The bearing 12 is disposed on the connecting section 112 of the connecting shaft 11 and located in the inner cavity 151 of the sleeve 15. The bearing 12 includes an abutment member 121 and a rotating member 123.

The abutment member 121 abuts against the sleeve 15. An abutment groove 153 is disposed in the sleeve 15, and the abutment member 121 is accommodated in the abutment groove 153 and is in an interference fit with the sleeve 15. In an embodiment, the connecting section 112 is disposed opposite to the abutment groove 153, and the abutment groove 153 is concave from an inner wall surface of the inner cavity 151 in a direction away from the connecting shaft 11, which means that a diameter of the abutment groove 153 is greater than a diameter of the inner cavity 151. An outer surface of the abutment member 121 is cylindrical, a diameter of the abutment member 121 matches a diameter of the abutment groove 153, and the abutment member 121 extends into the abutment groove 153, so that the abutment member 121 is in the interference fit with the sleeve 15 to prevent the abutment member 121 from falling off the sleeve 15 during use, and prevent the abutment member 121 from rotating in the sleeve 15.

A rotating cavity 122 is disposed inside the abutment member 121, and the rotating member 123 is accommodated in the rotating cavity 122 and can rotate in the rotating cavity 122, so that the connecting shaft 11 can be configured to pivot within the sleeve 15 about the rotating member 123.

Further, the rotating cavity 122 is arc-shaped, and the rotating member 123 abuts against the rotating cavity 122 and includes an arc surface 125 facing the rotating cavity 122. A surface curvature of the rotating cavity 122 is less than a curvature of the arc surface 125, so that the rotating member 123 can rotate in any direction in the rotating cavity 122.

In an embodiment, the bearing 12 includes a shaft hole 124, and the shaft hole 124 penetrates through the rotating member 123 and the abutment member 121, so that the abutment member 121 and the rotating member 123 cannot form a complete spherical shape, and in a direction perpendicular to the shaft hole 124, a diameter of the rotating cavity 122 matches a maximum diameter of the rotating member 123 and is greater than a diameter of the shaft hole 124, so that the rotating member 123 can rotate in the rotating cavity 122 but cannot pass through the shaft hole 124, so as to limit the rotating member 123 in the abutment member 121. In some embodiments, the bearing 12 is a joint bearing 12.

The connecting section 112 on the connecting shaft 11 passes through the shaft hole 124 of the bearing 12. In an embodiment, the connecting section 112 is disposed at a middle position of the connecting shaft 11, the diameter of the connecting section 112 is smaller than the diameter of the fixed section 113, and a size of the shaft hole 124 is the same as a size of the connecting section 112, so that the connecting section 112 is accommodated in the shaft hole 124 and abuts against a side wall of the shaft hole 124 to realize a connection between the connecting shaft 11 and the rotating member 123. Further, the connecting shaft 11 can drive the rotating member 123 to rotate in the rotating cavity 122 to realize that the connecting shaft 11 rotates around the bearing 12. In some embodiments, the connecting section 112 is in an interference fit with the rotating member 123, and the connecting shaft 11 can move up and down, left and right, and obliquely relative to the bearing 12.

The connecting shaft 11 further includes a free section 111 not accommodated in the sleeve 15. The free section 111 extends into the guiding wheel 2 and is coupled to the guiding wheel 2, so that the guiding wheel 2 can rotate around the connecting shaft 11 to realize a connection between the guiding wheel 2 and the direction adjustment assembly 1. In an embodiment, the diameter of the free section 111 is smaller than the diameter of the connecting section 112, the guiding wheel 2 is sleeved outside the free section 111, and a fastener 18 is disposed at an end of the free section 111 to limit the guiding wheel 2 between the fastener 18 and the connecting section 112 to prevent the guiding wheel 2 from falling off during use. In some embodiments, the guiding wheel 2 is tightly coupled to the free section 111 through a deep groove ball bearing to prevent the guiding wheel 2 from deflecting relative to the connecting shaft 11, thereby improving a connection stability and accuracy between the guiding wheel 2 and the connecting shaft 11.

Further, the direction adjustment assembly 1 further includes a bushing 13, and the bushing 13 is disposed between the sleeve 15 and the connecting shaft 11. This means that the bushing 13 is located in the first clearance 141, and the second clearance 142 is located between the bushing 13 and the connecting shaft 11. The bushing 13 and the sleeve 15 are coupled in an interference fit or integrally formed, the bushing 13 is annular, and the second clearance 142 is not greater than 0.7 mm in a radial direction of the connecting shaft 11. In some embodiments, the second clearance 142 is 0.5 mm.

In an embodiment, the abutment groove 153 and the fixed hole 152 are respectively disposed at two ends of the sleeve 15, the bushing 13 is accommodated in the inner cavity 151 and disposed between the abutment groove 153 and the fixed hole 152, the bushing 13 is arranged opposite to the fixed section 113 of the connecting shaft 11, and through connecting the bushing 13 with the sleeve 15 in an interference fit manner, the bushing 13 is prevented from rotating relative to the sleeve 15, thereby preventing the bushing 13 from falling off.

Through the bushing 13 in the sleeve 15 and the second clearance 142 between the bushing 13 and the connecting shaft 11, on one hand, it is used to limit an offset distance of the connecting shaft 11 in the sleeve 15, specifically, the connecting shaft 11 is deflectable in the sleeve 15, and then an angle between the guiding wheel 2 and the frame 6 is adjusted about the bearing 12, so that the cutting guide trolley 10 is deflectable when moving, and when the connecting shaft 11 abuts against the bushing 13, a maximum deflection angle of the guiding wheel 2 is reached, so as to prevent the cutting assembly 7 from being damaged due to an excessive deflection angle of the cutting guide trolley 10.

On the other hand, through the bushing 13 in the sleeve 15 and the second clearance 142 between the bushing 13 and the connecting shaft 11, a precise positioning is realized when the connecting shaft 11 and the guiding wheel 2 are assembled. In an embodiment, when the connecting shaft 11 and the guiding wheel 2 are assembled, an external tool is inserted between the connecting shaft 11 and the bushing 13, which means that a part of the external tool is inserted into the second clearance 142 to fix a distance between the connecting shaft 11 and the bushing 13, so that the connecting shaft 11 is kept stable, and then the guiding wheel 2 is assembled to the free section 111. Since the connecting shaft 11 cannot rotate, an assembling speed of the guiding wheel 2 and the connecting shaft 11 is improved, and meanwhile, an assembling precision is improved. After the guiding wheel 2 and the connecting shaft 11 are assembled, the external tool can be taken out.

The external tool may be understood as a device with a plurality of wedge-shaped claws, the plurality of claws is annular, and the wedge-shaped claws can extend into the inner cavity 151 and extend into the second clearance 142, so that an axis of the connecting shaft 11 overlaps an axis of the sleeve 15. Of course, the external tool is only illustrated here, and the disclosure is not limited thereto, as long as the device capable of realizing a fixing of the connecting shaft 11 relative to the sleeve 15 can be the external tool, which is not limited thereto.

In this embodiment, a deflection of the connecting shaft 11 is limited through the bushing 13, and the bushing 13 is in the interference fit with the sleeve 15. Of course, in other embodiments, the bushing 13 may not be disposed, and the deflection of the connecting shaft 11 is limited through limiting the distance between the connecting shaft 11 and the bushing 13. Or, the deflection 13 may also be integrally formed with the sleeve 15, which means that the bushing 13 is formed through extending from the sleeve 15 into the inner cavity 151, which is not limited thereto.

The direction adjustment assembly 1 further includes an end cover 17 coupled to the sleeve 15, and a size of the end cover 17 matches a size of the inner cavity 151. The end cover 17 is disposed at an end of the sleeve 15 away from the guiding wheel 2, and a part of the end cover 17 may extend into the inner cavity 151. The end cover 17 covers the inner cavity 151, so that the direction adjustment assembly 1 is beautiful and impurities are prevented from entering the inner cavity 151.

In summary, when the direction adjustment assembly 1 is coupled to the guiding wheel 2, the external tool is inserted into the second clearance 142 to fix the connecting shaft 11 in the sleeve 15, then the guiding wheel 2 is fixed in the free section 111, and the guiding wheel 2 is limited outside the free section 111 through the fixing member 161. Then the external tool is taken out, at this time, the connecting shaft 11 can be deflectable within the bushing 13 about the bearing 12 to change the angle between the guiding wheel 2 and the frame 6. After the angle between the guiding wheel 2 and the frame 6 is adjusted, at least three fixing members 161 are respectively passed through at least three fixed holes 152 and abut against the bottom of the groove 114 to fix the distance between the connecting shaft 11 and the sleeve 15 in each direction. At this time, distances of the at least three fixing members 161 extending into the sleeve 15 may be the same or different.

When the angle between the guiding wheel 2 and the frame 6 needs to be adjusted, through rotating the fixing members 161 in different directions, part of the fixing members 161 rotate in a direction away from the inner cavity 151, and other part of the fixing members 161 rotate in a direction entering the inner cavity 151, so that the connecting shaft 11 can be deflectable within the sleeve 15, thereby adjusting the angle between the guiding wheel 2 and the frame 6, and the guiding wheel 2 may be adjusted at any angle as required during use. After the angle of the guiding wheel 2 is adjusted, the fixing member 161 of the limiting structure 16 is re-locked, thereby adjusting the angle of the guiding wheel 2.

Further, the guiding wheel 2 and the cutting assembly 7 are spaced apart to prevent the cutting assembly 7 from damaging the guiding wheel 2 during operation.

To prevent the guiding wheel 2 from interfering with the cutting assembly 7 when the guiding wheel 2 is deflectable relative to the frame 6, which could mistakenly damage the guiding wheel 2, the cutting guide trolley 10 of the disclosure further includes the lateral adjustment assembly 5 to adjust a distance between the cutting assembly 7 and the guiding wheel 2.

Please refer to FIG. 1 through FIG. 5 combined with FIG. 14 through FIG. 16. The fixed frame 63 and the rotating frame 62 are disposed left and right, which means that the fixed frame 63 and the rotating frame 62 is deflectable from each other in a left-right direction perpendicular to the moving direction of the cutting guide trolley 10. In addition, an offset distance between the fixed frame 63 and the rotating frame 62 is fixed, which means that in the left-right direction, there is a fixed interval between the fixed frame 63 and the rotating frame 62. Wherein, the accommodating space 65 is formed between the fixed frame 63 and the rotating frame 62 to accommodate the cutting assembly 7 and the water tank 9.

When the cutting device 100 is in a cutting process, the cutting assembly 7 is prone to deviation, resulting in inconsistent running directions of the cutting assembly 7 and the cutting guide trolley 10. In order to solve this problem, the lateral adjustment assembly 5 is disposed on a side of the fixed frame 63 facing the rotating frame 62, and the lateral adjustment assembly 5 is disposed on the first handle 631 of the fixed frame 63 and perpendicular to the first handle 631. Additionally, the lateral adjustment assembly 5 is fixedly coupled to the rear handle 72 of the cutting assembly 7, thereby fixedly coupling the cutting assembly 7 to the fixed frame 63. Through adjusting the lateral adjustment assembly 5 to adjust the left-right offset direction of the cutting assembly 7 on the cutting guide trolley 10, the cutting assembly 7 is parallel to the movement direction of the cutting guide trolley 10, so that the cutting device 100 runs smoothly without a deviation.

The lateral adjustment assembly 5 includes a link 51 arranged on the fixed frame 63, a sliding structure 53 sleeved on an outer side of the link 51, and an adjustment member 54.

The link 51 is fixedly coupled to the first handle 631 and extends from the first handle 631 into the accommodating space 65 of the frame 6, and an arrangement direction of the link 51 is parallel to the surface to be cut 200.

The sliding structure 53 includes a sliding hole 531 for the link 51 to pass through, and the sliding structure 53 is sleeved outside the link 51 through the sliding hole 531 and can slide along the link 51. In addition, the sliding structure 53 is in a rotating fit with the adjustment member 54, the sliding structure 53 is fixedly coupled to the rear handle 72 of the cutting assembly 7, and a distance between the sliding structure 53 and the fixed frame 63 is adjusted by rotating the adjustment member 54, thereby adjusting a left-right offset angle of the cutting assembly 7 on the cutting guide trolley 10, so that the cutting assembly 7 can be parallel to the traveling direction of the cutting guide trolley 10.

The sliding structure 53 includes a mating portion 55 disposed toward the adjustment member 54. The mating portion 55 includes an extending wall 551 extending towards the adjustment member 54 and surrounding to form an accommodation cavity 556, an adjustment surface 552 is provided on a side of the accommodation cavity 556 facing the adjustment member 54, and the adjustment surface 552 has a height differential along an extension direction of the extending wall 551. In this way, when the adjustment member 54 is rotated, an adjustment block 542 on the adjustment member 54 may compress the sliding structure 53 through utilizing height differential on the adjustment surface 552, so that the sliding structure 53 may slide left and right in the extension direction of the link 51.

Further, the lateral adjustment assembly 5 further includes an elastic member 52, and the elastic member 52 is disposed between the fixed frame 63 and the sliding structure 53.

In this embodiment, the elastic member 52 is a spring, the elastic member 52 is sleeved on the link 51 and disposed between the sliding structure 53 and the first handle 631. A first end of the elastic member 52 abuts against the first handle 631, and a second end of the elastic member 52 abuts against a side wall of the sliding structure 53 to provide power for the sliding structure 53 to move away from the first handle 631. When the adjustment member 54 rotates relative to the link 51 to compress and push the adjustment surface 552 on the mating portion 55, the sliding structure 53 moves on the link 51 in a direction close to the first handle 631 to compress the elastic member 52, and at this time, the elastic member 52 tends to push the sliding structure 53 in a direction away from the first handle 631.

Further, a separation plate 557 separating the adjustment surface 552 is disposed in the accommodation cavity 556, and a height of the adjustment surface 552 gradually increases from one side to the other side of the separation plate 557 (please refer to FIG. 4). This means that there is a largest height difference between two sides of the separation plate 557. In some embodiments, a maximum height differential is from 1 mm to 2 mm. This means that the adjustment member 54 rotates one circle on the adjustment surface 552, and a moving distance of the sliding structure 53 on the link 51 is from 1 mm to 2 mm.

The adjustment member 54 is fixedly disposed on a side of the link 51 away from the first handle 631. The link 51 further includes a control groove 513 and a gasket 512, a diameter of the control groove 513 is smaller than a diameter of the link 51, and the adjustment member 54 is sleeved on the link 51 and accommodated in the control groove 513 to prevent the adjustment member 54 from sliding along the link 51. The gasket 512 is arranged between the locking member 511 and the adjustment member 54 to increase a stress area with the adjustment member 54 and improve a connection stability of the adjustment member 54.

A link hole 541 is disposed at a central position of the adjustment member 54, and the adjustment member 54 is sleeved on the link 51 through the link hole 541 and can rotate around the link 51. The link 51 includes a locking member 511, a first end of the locking member 511 is coupled to the link 51, and a second end of the locking member 511 abuts against the adjustment member 54 to limit the adjustment member 54 on the link 51.

The adjustment member 54 includes an adjustment block 542 arranged toward the sliding structure 53, and the adjustment block 542 protrudes outward from a side of the adjustment member 54 close to the first handle 631, which means that the adjustment block 542 can extend into the accommodation cavity 556 and abut against the adjustment surface 552. When the adjustment member 54 is rotated, the adjustment block 542 moves along the adjustment surface 552, and drives the sliding structure 53 to move left and right in a direction of the link 51 through utilizing the height differential of the adjustment surface 552.

Further, in order to improve a connection stability between the adjustment surface 552 and the adjustment block 542, a first anti-skid portion 553 is disposed on a side of the adjustment surface 552 facing the adjustment block 542, and a second anti-skid portion 543 engaged with the first anti-skid portion 553 is disposed on a side of the adjustment block 542 facing the adjustment surface 552.

In this embodiment, the first anti-skid portion 553 includes a plurality of gear racks 554 arranged radially, and gear grooves 555 are arranged between adjacent gear racks 554. The second anti-skid portion 543 includes a latching block 5431 and a latching groove 5432 arranged adjacent to each other, the latching block 5431 is matched with the gear groove 555, and the latching groove 5432 is matched with the gear rack 554. A meshing between the latching block 5431 and the gear groove 555 and a meshing between the latching groove 5432 and the gear rack 554 improves a movement stability of the adjustment block 542 on the adjustment surface 552. Meanwhile, through arranging the plurality of gear racks 554 radially on the adjustment surface 552, a rotating angle of the adjustment member 54 relative to the sliding structure 53 may be more accurate, so that a sliding distance of the sliding structure 53 on the link 51 may be adjusted more accurately, thereby accurately controlling a distance of the cutting assembly 7 relative to the guiding wheel 2. Of course, in other embodiments, the gear groove 555 may be only disposed on the adjustment surface 552, the latching block 5431 may be disposed on the adjustment block 542, or the gear rack 554 may be disposed on the adjustment surface 552, and the latching groove 5432 may be disposed on the adjustment block 542, so as to accurately control a rotation of the adjustment member 54 relative to the sliding structure 53, which is not limited thereto.

Further, the gear rack 554 further includes a guiding surface and a top surface, the guiding surface and the adjustment surface 552 are arranged at an acute angle, the top surface is parallel to the adjustment surface 552, the latching block 5431 on the adjustment block 542 can move toward the top surface along the guiding surface, slide over the top surface to be accommodated in the gear groove 555, and the top surface is in contact with a bottom in the latching groove 5432, so as to limit the rotating angle of the adjustment member 54 relative to the mating portion 55. The latching block 5431 is guided to move through the guiding surface, which reduces a resistance to a rotation of the adjustment member 54, and improves a convenience of adjusting the sliding structure 53 by the adjustment member 54.

A positioning groove 558 is disposed on a side of the extending wall 551 away from the accommodation cavity 556, and a positioning mark 545 is disposed on an outer wall surface of the adjustment member 54. When the positioning groove 558 is aligned with the positioning mark 545, a distance between the sliding structure 53 and the adjustment member 54 is in a centered position, which means that the elastic member 52 is in a semi-compressed state, and at this position, the sliding structure 53 may not only move toward the fixed frame 63 under a push of the adjustment member 54, but also may move away from the fixed frame 63 under a push of the elastic member 52. Through the positioning groove 558 and the positioning mark 545, the distance between the adjustment member 54 and the sliding structure 53 is visualized, thereby improving the user experience.

Further, the adjustment member 54 includes at least two adjusting blocks 542, and the at least two adjustment blocks 542 are arranged circumferentially. In this embodiment, the adjustment member 54 includes three adjustment blocks 542, and the three adjustment blocks 542 are all arc-shaped to achieve a stable support.

An operating portion 546 is further disposed on the outer wall surface of the adjustment member 54. The operating portion 546 is concave inwardly from the outer wall surface of the adjustment member 54 to facilitate user to hold and improve a friction force between the user and the adjustment member 54 to prevent the user from slipping when adjusting the adjustment member 54.

In general, when the cutting assembly 7 is deflectable from a forward direction of the cutting guide trolley 10, a left-right displacement of the cutting assembly 7 may be finely adjusted by the adjustment member 54 and the sliding structure 53, so as to ensure that the cutting assembly 7 is parallel to the forward direction of the cutting guide trolley 10 and ensure a cutting effect. For example, the adjustment block 542 may slide on the adjustment surface 552 through rotating the adjustment member 54, the adjustment block 542 compresses the sliding structure 53 to move on the link 51 toward the first handle 631, and the elastic member 52 is compressed at the same time. When an adjustment distance is reached, the latching block 5431 on the adjustment block 542 is meshed with the gear groove 555 on the adjustment surface 552 to fix the sliding structure 53 at the distance. When the sliding structure 53 needs to be adjusted in a reverse direction, the adjustment member 54 is rotated in a reverse direction, and the sliding structure 53 moves toward the adjustment member 54 under a push of the elastic member 52, so that a position of the sliding structure 53 on the link 51 is adjusted through the adjustment member 54, and then left and right positions of the cutting assembly 7 are finely adjusted, and the cutting assembly 7 is parallel to the movement direction of the cutting guide trolley 10, so as to enable the cutting device 100 to run smoothly without the deviation.

Please refer to FIG. 1 through FIG. 5 in combination with FIG. 17 through FIG. 20, the cutting depth adjustment assembly 4 is arranged between the fixed frame 63 and the rotating frame 62 to limit the rotating angle of the rotating frame 62 relative to the fixed frame 63. In addition, a height of the guiding wheel 2 relative to the surface to be cut 200 can also be adjusted, thereby adjusting the cutting depth of the cutting assembly 7.

The cutting depth adjustment assembly 4 includes a functional plate 41 and an adjustment structure 42. Wherein, the functional plate 41 is disposed on the fixed frame 63 and is fixedly coupled to the mounting frame 61. A disposing direction of the functional plate 41 is perpendicular to a disposing direction of the mounting frame 61, and the disposing direction of the functional plate 41 is parallel to the rotating frame 62, so that the rotating frame 62 does not interfere with the functional plate 41 during rotation. The adjustment structure 42 is fixedly coupled to the rotating frame 62 and is fixedly coupled to the adjustment rod 621. When the rotating frame 62 rotates relative to the fixed frame 63, the adjustment structure 42 can move relative to the functional plate 41, and the adjustment structure 42 can be matched with the functional plate 41 to limit the rotating angle of the rotating frame 62 relative to the fixed frame 63, and limit the height of the guiding wheel 2 relative to the surface to be cut 200, thereby limiting the cutting depth of the cutting assembly 7.

The functional plate 41 includes a limiting portion 411, the limiting portion 411 includes a plurality of limiting teeth arranged at intervals, and a limiting slot 412 is formed between adjacent limiting teeth. The limiting portion 411 includes a plurality of limiting slots 412 arranged at intervals. The limiting slot 412 is configured to be engaged and fixed with the latching portion 427 on the adjustment structure 42 to limit the distance between the guiding wheel 2 and the surface to be cut 200, thereby limiting the cutting depth of the fixed cutting assembly 7.A number of the limiting slots 412 may be set according to user requirements, so that the cutting depth may be changed by changing a gear.

The adjustment structure 42 includes a rotating shaft 421 and a crank rod 422. The rotating shaft 421 is fixed on the adjustment rod 621 of the rotating frame 62, and the crank rod 422 is movably coupled to the rotating shaft 421. One end of the rotating shaft 421 away from the adjustment rod 621 is movably coupled to a middle part of the crank rod 422, so that the crank rod 422 can rotate around the rotating shaft 421 to form a seesaw structure. The latching portion 427 is disposed on a side of the crank rod 422 towards the limiting portion 411. The latching portion 427 is configured to be engaged and fixed with the limiting slot 412 on the functional plate 41 to limit the distance between the guiding wheel 2 and the surface to be cut 200, thereby limiting the cutting depth of the fixed cutting assembly 7.

During the rotation of the rotating frame 62 relative to the fixed frame 63, the rotating shaft 421 drives the crank rod 422 to displace relative to the functional plate 41, and during a movement of the crank rod 422, the latching portion 427 can be separated from the limiting slot 412, so that the rotating frame 62 is in a free state. The distance between the guiding wheel 2 and the surface to be cut 200 is adjusted through adjusting the angle between the rotating frame 62 and the fixed frame 63, thereby adjusting the cutting depth of the cutting assembly 7. When the cutting depth is adjusted to an appropriate depth, the latching portion 427 can be engaged with the limiting slot 412, so that the cutting depth may be fixed, and the cutting depth may be conveniently adjusted.

Further, the functional plate 41 further includes a limiting groove 413, the rotating shaft 421 extends through the limiting groove 413 and is disposed on the adjustment rod 621 of the rotating frame 62, and the limiting groove 413 constrains a movement path of the rotating shaft 421.

In an embodiment, the limiting groove 413 is arc-shaped, and a center of a circle corresponding to the limiting groove 413 is the fixed rod 612, so that when the adjustment rod 621 rotates around the fixed rod 612, the rotating shaft 421 can be driven to move in the moving path defined by the limiting groove 413.

The limiting portion 411 is disposed below the limiting groove 413, and a curvature of the limiting portion 411 matches a curvature of the limiting groove 413. In this way, when the rotating shaft 421 moves in the movement path defined by the limiting groove 413, the latching portion 427 on the crank rod 422 can be separated from or engaged with the limiting slot 412 on the limiting portion 411 to adjust the distance between the guiding wheel 2 and the surface to be cut 200, thereby adjusting the cutting depth of the cutting assembly 7.

An extension direction of the plurality of limiting slots 412 is the same as a disposing direction of the limiting slots 413, and the limiting slot 412 is matched with the latching portion 427, so that the latching portion 427 can be accommodated in the limiting slot 412 to limit a movement of the latching portion 427.

In this embodiment, the extension direction of the limiting slot 412 and the surface to be cut 200 are arranged at an acute angle, which improves a limiting strength of the latching portion 427, further improves a latching stability, and prevents the latching portion 427 from falling off from the limiting slot 412 due to a vibration of the cutting guide trolley 10 during use. Of course, in other embodiment, the extension direction of the limiting slot 412 may also be perpendicular to the surface to be cut 200, which is not limited thereto.

When the cutting depth of the cutting assembly 7 needs to be adjusted, an external force is applied to the crank rod 422, so that the crank rod 422 rotates around the rotating shaft 421.Then the latching portion 427 moves out of the limiting slot 412, and the adjustment rod 621 is in the free state. The adjustment rod 621 is rotated to adjust the height between the guiding wheel 2 and the surface to be cut, and then the cutting depth of the cutting assembly 7 is adjusted. After the adjustment is completed, a reverse acting force is applied to the crank rod 422, and the latching portion 427 is engaged into the limiting slot 412 to fix the cutting depth.

Further, the crank rod 422 includes a driving end 423 and a latching end 426. The rotating shaft 421 is movably coupled between the driving end 423 and the latching end 426, and the driving end 423 and the latching end 426 move in opposite directions about the rotating shaft 421. This means that the crank rod 422 and the rotating shaft 421 form the seesaw structure, when the driving end 423 moves downward, the latching end 426 can move in an opposite direction (which means upward), and when the driving end 423 moves upward, the latching end 426 can move downward. In this way, a movement of the latching end 426 may be controlled through applying a force to the driving end 423, so that the latching portion 427 on the latching end 426 is engaged or disengaged from the limiting slot 412.

The latching portion 427 is disposed on a side of the latching end 426 facing the functional plate 41 to be engaged with or disengaged from the limiting slot 412 on the limiting portion 411 to limit the fixed cutting depth.

A driving plate 424 is disposed on the driving end 423, and the driving plate 424 is formed through bending from the driving end 423 in a direction away from the functional plate 41. A driving hole 425 is disposed on the driving plate 424, and the driving hole 425 penetrates the driving plate 424. The driving plate 424 and the driving hole 425 are disposed to coupe the driving end 423 to a movable member 432 on the rotating frame 62, so as to implement a linkage control.

Further, the rotating frame 62 includes a grip 431 and the movable member 432, and the movable member 432 is movably coupled to the grip 431 through a rotation shaft 4321. One end of the movable member 432 away from the grip 431 may be close to or away from the grip 431. The movable member 432 includes an adjustment portion 4322 and a connecting portion 4323 located on two sides of the rotation shaft 4321. The adjustment portion 4322 and the connecting portion 4323 move away from each other about the rotation shaft 4321 to form the seesaw structure. When the adjustment portion 4322 approaches the grip 431 under an external force, the connecting portion 4323 moves away from the grip 431, and when the adjustment portion 4322 moves away from the grip 431, the connecting portion 4323 moves toward the grip 431.

A connecting structure 44 is disposed between the movable member 432 and the driving end 423, and during a process of the movable member 432 approaching the grip 431, the driving end 423 is driven by the connecting structure 44 to move toward the mounting frame 61.

The adjustment portion 4322 is disposed away from the grip 431. A first end of the connecting structure 44 is fixedly coupled to the connecting portion 4323, a second end of the connecting structure 44 is coupled to the driving plate 424 on the driving end 423. When the adjustment portion 4322 approaches the grip 431 upward, the connecting portion 4323 compresses the connecting structure 44 downward, and drives the driving end 423 to move toward the mounting frame 61 through the connecting structure 44. This means that the driving end 423 moves downward, and at this time, the latching portion 426 opposite to the driving end 423 moves upward, so that the latching portion 427 can be disengaged from the limiting slot 412 to facilitate adjusting the distance of the guiding wheel 2 relative to the surface to be cut 200. Through the connecting structure 44, the crank rod 422 can be controlled to rotate through operating a distance of the movable member 432 relative to the grip 431, which improves a convenience of driving and further realizes a convenient control of the cutting depth of the cutting assembly 7.

In this embodiment, the connecting structure 44 includes a housing 441 and a connecting wire 442, and the connecting wire 442 is accommodated in the housing 441 to protect the connecting wire 442. In an embodiment, a first end of the connecting wire 442 is coupled to the connecting portion 4323 on the movable member 432, and a second end of the connecting wire 442 is fixedly coupled to the driving end 423 through the driving hole 425. An external force is applied to the movable member 432, so that the movable member 432 moves toward the grip 431, and then the connecting wire 442 is pulled to move in the housing 441, so that the housing 441 pushes the driving plate 424 to move, and the crank rod 422 rotates around the rotating shaft 421. In other embodiments, only the connecting wire 442 may be disposed without the housing 441, or the connecting structure 44 may be a driving rod, and the driving rod is pushed by the movable member 432, so that the driving rod pushes the crank rod 422 to rotate, as long as the crank rod 422 may be driven to rotate around the rotating shaft 421, it is not limited thereto.

Further, the cutting depth adjustment assembly 4 further includes a reset member 46. The reset member 46 is disposed close to the latching end 426 of the crank rod 422 and is configured to provide power for engaging the latching portion 427 with the limiting slot 412.

In this embodiment, the reset member 46 is a circlip. A first wiring portion 428 extends from the latching end 426 of the crank rod 422 in a direction away from the latching portion 427. A sliding post 45 extends from the rotating frame 62 toward the functional plate 41. A second wiring portion 451 is disposed on a side of the sliding post 45 away from the rotating frame 62, and two ends of the reset member 46 are fixedly coupled to the first wiring portion 428 and the second wiring portion 451, respectively. The functional plate 41 includes a sliding groove 414, and the sliding post 45 passes through the sliding groove 414 to couple the second wiring portion 451 to the reset member 46. Please refer to FIG. 21 and FIG. 22. In an embodiment, the sliding groove 414 is arc-shaped, the sliding post 45 is accommodated in the sliding groove 414 and can slide along the sliding groove, and the sliding groove 414 is centered about the fixed rod 612. Please refer to FIG. 4 and FIG. 18, in another embodiment, a shape of the sliding groove 414 is not limited thereto, and the sliding groove 414 allows the sliding post 45 to pass through without interfering with a sliding of the sliding post 45, as shown in FIG. 4 and FIG. 18, to reduce a weight.

When the movable member 432 approaches the grip 431 upwards, the connecting portion 4323 compresses the connecting structure 44 downwards, and drives the driving end 423 to move towards the mounting frame 61 through the connecting structure 44. At this time, the latching end 426 opposite to the driving end 423 moves away from the limiting portion 411, and the latching portion 427 is disengaged from the limiting slot 412. At this time, the first wiring portion 428 moves away from the reset member 46 to stretch the reset member 46, so that the reset member 46 tends to stretch the first wiring portion 428 towards the second wiring portion 451. After the movable member 432 is released, the reset member 46 stretches the first wiring portion 428 in a direction of the second wiring portion 451, so that the latching end 426 moves in a direction close to the limiting portion 411, and the latching portion 427 is engaged into the limiting slot 412 to achieve latching and fixing. At the same time, the driving end 423 opposite to the latching end 426 stretches the movable member 432 downward, so that the movable member 432 moves away from the grip 431 to return to an initial state.

In an embodiment, the first wiring portion 428 includes a first wiring groove, the second wiring portion 451 includes a second wiring groove, the reset member 46 is a tension spring, and two ends of the tension spring are respectively sleeved in the first wiring groove 429 and the second wiring groove 452 to drive the first wiring portion 428 to move toward the second wiring portion 451.

Further, the cutting depth adjustment assembly 4 further includes a scale 47 and an instruction member 48, the scale 47 is disposed on a side of the functional plate 41 away from the limiting portion 411, and the scale 47 includes a plurality of scale lines. The instruction member 48 is disposed on the rotating shaft 421 and points to the scale 47. With this arrangement, the cutting depth may be displayed on a scale by the scale 47 and the instruction member 48, and the current cutting depth may be clearly seen, which is convenient for the user to adjust and observe a value of the cutting depth that meets requirements.

In summary, when the cutting depth of the cutting assembly 7 needs to be adjusted, an external force is applied to the movable member 432, and the movable member 432 moves towards the grip 431. Since the adjustment portion 4322 and the connecting portion 4323 form the seesaw structure through the rotating shaft 4321, when the adjustment portion 4322 moves towards the grip 431, the connecting portion 4323 moves away from the grip 431, thereby pushing the connecting structure 44 to move towards the driving end 423 of the crank rod 422, and pushing the driving end 423 to move towards the mounting frame 61, which means to move downwards. The crank rod 422 rotates around the rotating shaft 421, so that the latching portion 427 on the latching end 426 is disengaged from the limiting clamping groove 412 and moves upwards. At this time, the first wiring portion 428 stretches the reset member 46, so that the reset member 46 generates a pulling force for returning to the initial state, which means a pulling force for pulling the latching end 426 downwards. At this time, the rotating frame 62 is in the free state, the adjustment rod 621 is pushed, the rotating shaft 421 moves along an extension direction of the limiting groove 413 under a limitation of the limiting groove 413. At the same time, the sliding post 45 where the second wiring portion 451 is located moves in the sliding groove 414 to adjust the angle between the rotating frame 62 and the fixed frame 63, and at the same time, the distance between the guiding wheel 2 and the surface to be cut 200 is adjusted, thereby adjusting the cutting depth of the cutting assembly 7. After achieving a specified cutting depth, the external force applied to the movable member 432 is canceled. At this time, the latching end 426 of the crank rod 422 moves towards a direction close to the surface to be cut 200 under an action of a pulling force of the reset member 46, so that the latching portion 427 is engaged in the limiting slot 412 to fix the angle between the rotating frame 62 and the fixed frame 63, further fix the cutting depth of the cutting assembly 7, and complete an adjustment of the cutting depth of the cutting assembly 7.

In summary, in the cutting guide trolley 10, the fixed frame 63 is arranged on the first side of the mounting frame 61 and the rotating frame 62 is arranged on the second side of the mounting frame 61 opposite the fixed frame 63, the fixed frame 63 is non-rotatably coupled to the mounting frame 61, the rotating frame 62 is rotatably coupled to the mounting frame 61, and the guiding wheel 2 is mounted on the rotating frame 62, so that structural parts of the cutting guide trolley 10 can be reduced, the overall structure is compact, and a mounting and transportation are convenient, and at the same time, a distance of the guiding wheel 2 relative to the surface to be cut 200 can be adjusted by adjustment the rotating frame 62, thereby adjustment a cutting depth of the cutting assembly 7. Through the direction adjustment assembly 1, it is convenient to adjust the offset angle of the guiding wheel 2, and through the lateral adjustment assembly 5, it is convenient to adjust a left-right displacement of the cutting assembly 7, so that the cutting guide trolley 10 runs along a straight line to realize a straight line driving and cutting. Both the fixed frame 63 and the rotating frame 62 are configured as detachable structures to minimize packaging and facilitate transportation and mounting.

Although the disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that technical solutions of the disclosure can be modified or equivalently replaced without departing from a scope of the technical solutions of the disclosure.

Claims

1. A cutting guide trolley, comprising:

a frame configured to support a cutting assembly, the frame comprising

a mounting frame,

a fixed frame located on a first side of the mounting frame, and

a rotating frame located on a second side of the mounting frame opposite the fixed frame, wherein the fixed frame is non-rotatably coupled to the mounting frame, and the rotating frame is rotatably coupled to the mounting frame; and

a walking assembly configured to drive the cutting assembly to move relative to a surface to be cut, the walking assembly comprising

a supporting wheel mounted on the mounting frame, and

a guiding wheel mounted on the rotating frame and positioned laterally adjacent to the cutting assembly.

2. The cutting guide trolley according to claim 1, wherein the fixed frame comprises:

a first handle disposed on the mounting frame and

a second handle coupled to the first handle through a pivot joint and detachable from the first handle.

3. The cutting guide trolley according to claim 1, wherein the rotating frame comprises an adjustment rod, a supporting rod and a guiding rod arranged in sequence, the guiding rod connected to the guiding wheel, the supporting rod mounted to the guiding rod and rotatably coupled to the mounting frame, and the adjustment rod disposed at an end of the supporting rod away from the guiding rod and detachably coupled to the supporting rod.

4. The cutting guide trolley according to claim 2, further comprising a starting device for actuating the cutting assembly, wherein, the starting device comprises: a starting member mounted on the second handle, a crank link including a first end connected to the starting member and a fixed shaft connected to the cutting assembly and pivotably coupled to the crank link, wherein a second end of the crank link, opposite the first end, is provided with a starting shaft positioned opposite a starting switch of the cutting assembly, and a rotation of the starting member causes the first end to rotate in a first direction and the second end to rotate in an opposite direction into abutment with the starting switch to actuate the cutting assembly.

5. The cutting guide trolley according to claim 1, further comprising a cutting depth adjustment assembly, wherein the cutting depth adjustment assembly comprises: a functional plate mounted on the fixed frame and including a limiting portion provided with a plurality of spaced limiting slots; and an adjustment structure comprising a rotating shaft disposed to the rotating frame and a crank rod pivotably coupled to the rotating shaft, the crank rod including a latching portion at a side facing the limiting portion, wherein, during a rotation of the rotating frame relative to the fixed frame, the rotating shaft drives the crank rod to move relative to the functional plate, and during a movement of the crank rod, the latching portion is selectively disengaged from or engages with one of the limiting slots to adjust a distance between the guiding wheel and the surface to be cut.

6. The cutting guide trolley according to claim 5, wherein, the functional plate further comprises a limiting groove, the rotating shaft extends through the limiting groove and is disposed on the rotating frame, and the limiting groove constrains a movement path of the rotating shaft.

7. The cutting guide trolley according to claim 5, wherein, the crank rod comprises a driving end and a latching end, the rotating shaft is movably coupled between the driving end and the latching end, and the driving end and the latching end move in opposite directions about the rotating shaft.

8. The cutting guide trolley according to claim 7, wherein, the rotating frame comprises a grip and a movable member movably coupled to the grip via a rotation shaft, a connecting structure is disposed between the movable member and the driving end, and a movement of the movable member toward the grip drives the driving end toward the mounting frame via the connecting structure while the latching end moves in an opposite direction so that the latching portion disengages from the limiting slot.

9. The cutting guide trolley according to claim 3, further comprising a direction adjustment assembly disposed between the guiding rod and the guiding wheel, wherein the direction adjustment assembly is disposed to the guiding rod, the guiding wheel is disposed to the guiding rod via the direction adjustment assembly, and the direction adjustment assembly is configured to adjust an offset angle of the guiding wheel relative to the frame.

10. The cutting guide trolley according to claim 9, wherein, the direction adjustment assembly comprises: a sleeve disposed to the guiding rod, a connecting shaft comprising a fixed section located inside the sleeve and a free section located outside the sleeve and coupled to the guiding wheel, a first clearance being defined between the fixed section and the sleeve, a bearing disposed between the fixed section and the sleeve, the connecting shaft being configured to pivot within the sleeve about the bearing, and a limiting structure mounted on the sleeve and extending through the sleeve into abutment with the connecting shaft to fix the connecting shaft relative to the sleeve.

11. The cutting guide trolley according to claim 10, wherein the direction adjustment assembly further comprises a bushing, the bushing is disposed between the sleeve and the connecting shaft, and a second clearance is defined between the bushing and the connecting shaft.

12. The cutting guide trolley according to claim 1, further comprising a lateral adjustment assembly, wherein, the lateral adjustment assembly is disposed on a side of the fixed frame facing the rotating frame, and the cutting assembly is connected to the fixed frame via the lateral adjustment assembly so that a traveling direction of the cutting assembly is adjustable by the lateral adjustment assembly.

13. The cutting guide trolley according to claim 12, wherein, the lateral adjustment assembly comprises: a link mounted on the fixed frame, a sliding structure sleeved on the link, and an adjustment member, wherein the cutting assembly is connected to the sliding structure, the adjustment member is in rotational engagement with the sliding structure, and a rotation of the adjustment member adjusts a distance between the sliding structure and the fixed frame to thereby adjust the traveling direction of the cutting assembly.

14. The cutting guide trolley according to claim 13, wherein, the sliding structure comprises a mating portion facing the adjustment member, the mating portion comprises an extending wall extending towards the adjustment member and surrounding to form an accommodation cavity, an adjustment surface is provided on a side of the accommodation cavity facing the adjustment member, and the adjustment surface has a height differential along an extension direction of the extending wall.

15. A cutting device, comprising a cutting guide trolley and a cutting assembly, wherein, the cutting guide trolley comprises:

a frame configured to support a cutting assembly, the frame comprising

a mounting frame,

a fixed frame located on a first side of the mounting frame, and

a rotating frame located on a second side of the mounting frame opposite the fixed frame, wherein the fixed frame is non-rotatably coupled to the mounting frame, and the rotating frame is rotatably coupled to the mounting frame; and

a walking assembly configured to drive the cutting assembly to move relative to a surface to be cut, the walking assembly comprising

a supporting wheel mounted on the mounting frame, and

a guiding wheel mounted on the rotating frame and positioned laterally adjacent to the cutting assembly.

16. The cutting device according to claim 15, wherein, the cutting assembly further comprises a driving assembly connected to the fixed frame and configured to drive the cutting assembly to cut.

17. The cutting device according to claim 16, further comprising a water tank disposed between the fixed frame and the rotating frame and located above the cutting assembly, the water tank being in fluid communication with a pipeline of the cutting assembly.

18. The cutting device according to claim 16, further comprising a lateral adjustment assembly, wherein, the cutting assembly comprises an anti-self-locking structure, the lateral adjustment assembly is disposed on a side of the fixed frame facing the rotating frame, the lateral adjustment assembly is in interference fit with the anti-self-locking structure, and when the lateral adjustment assembly is mounted to the fixed frame, the anti-self-locking structure is in an unlocked state.

19. The cutting device according to claim 18, wherein, the lateral adjustment assembly comprises a link, a sliding structure and an adjustment member, the cutting assembly is secured to the sliding structure, the adjustment member is in threaded rotational engagement with the sliding structure, and a rotation of the adjustment member adjusts a distance between the sliding structure and the fixed frame to thereby adjust a left-right offset direction of the cutting assembly relative to the cutting guide trolley.

20. The cutting device according to claim 15, wherein, the guiding wheel is mounted to the rotating frame via a direction adjustment assembly, and the direction adjustment assembly is configured to adjust an offset angle of the guiding wheel relative to the frame.