FITNESS EQUIPMENT

Abstract

The present disclosure relates to the technical field of fitness equipment, and in particular, to a fitness equipment. An embodiment of the present disclosure provides a fitness equipment. The fitness equipment includes an equipment main body, a support stabilization structure is provided at a top of the equipment main body, and the support stabilization structure is configured to abut against a top of a room. The structural design of the present disclosure is simple and reasonable. Through the combination of the support stabilization structure and the top of the house, the entire equipment is firmly fixed, thereby eliminating the possibility of a rollover accident during a training process. Additionally, the design ensures safety and stability during use while enabling miniaturization and lightweight of the equipment.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a Continuation of International Application No. PCT/CN2025/128300, filed on October 17, 2025, which claims priority to Chinese Patent Application No. 202422576106.8, filed on October 24, 2024, the entire contents of each of which are hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure generally relates to the field of fitness equipment, and in particular to fitness equipment.

BACKGROUND

With the development of society, living standards of people have gradually improved, and an increasing number of people have recognized the importance of fitness, which has given rise to a variety of fitness equipment.

Previously, a majority of people chose to go to specialized gyms or fitness venues for assisted training with professional equipment. However, some individuals find it difficult to go to such venues for training due to time or condition constraints. Consequently, these users tend to purchase fitness equipment for home use. However, limited by living space, it is usually difficult to accommodate large or multiple types of equipment in a home environment. To address the problem, users may add fitness equipment with compact and comprehensive features, such as a CrossFit (CF) comprehensive training rack, or the like. Currently, most fitness equipment has a floor-standing design. Large-scale equipment may support heavy-weight training due to a stable structure. However, compact equipment, when subjected to a large training load during use, may face a risk of tipping over or falling. Such safety accidents have occurred from time to time in practice over the years.

Based on this, there is a need to provide a fitness equipment that may be stably installed to ensure that the fitness equipment does not experience accidents such as tipping over or collapsing during use.

SUMMARY

One or more embodiments of the present disclosure provide a fitness equipment. The fitness equipment includes an equipment main body. A support stabilization structure is provided at a top of the equipment main body. The support stabilization structure is configured to abut against a top of a room.

In some embodiments, the equipment main body is a vertical comprehensive training rack. A fitness unit is mounted on the comprehensive training rack.

In some embodiments, the support stabilization structure includes a vertically arranged support cylinder, a connecting plate provided at a lower end of the support cylinder, and a support tray provided at a top of the support cylinder. The connecting plate is attached to an adapted position at an upper end of the equipment main body and is fixedly connected to the equipment main body via a fastener.

In some embodiments, at least two support stabilization structures are provided at intervals.

In some embodiments, the support stabilization structure includes a screw rod, a locking nut, and a top tray. A top of the equipment main body is provided with a first threaded hole adapted to the screw rod. The screw rod is vertically arranged. A lower end of the screw rod is threadedly installed in the first threaded hole. The locking nut is threadedly sleeved on the screw rod and is configured to be rotated to abut against the top of the equipment main body. The top tray is provided at an upper end of the screw rod.

In some embodiments, at least two support stabilization structures are provided at intervals.

In some embodiments, the support stabilization structure includes an installation frame. The installation frame is horizontally arranged and installed at an upper end of the equipment main body via a fastener. An upper end of the installation frame is provided with a second threaded hole. A vertically arranged jacking rod is threadedly connected in the second threaded hole. A support top seat is provided at an upper end of the jacking rod.

In some embodiments, the support stabilization structure includes a bottom beam, a top beam, a first connecting arm, and a second connecting arm. The bottom beam is horizontally fixed to a top of the equipment main body. The top beam is arranged parallel to and above the bottom beam. A middle portion of the first connecting arm and a middle portion of the second connecting arm are crossed and hinged. A lower end of the first connecting arm is hinged to one end of the bottom beam. A lead screw is rotatably installed along a length direction of the bottom beam. A lead screw nut is threadedly engaged on the lead screw. An upper end of the second connecting arm is hinged to the top beam. A lower end of the second connecting arm is movably connected to the lead screw nut. An upper end of the first connecting arm is connected to a slider. The slider is slidably connected to the top beam. One end of the lead screw is provided with a driving member.

In some embodiments, the driving member is a handwheel knob.

In some embodiments, two sets of the support stabilization structures are provided at intervals.

In some embodiments, the driving member includes a torque reduction motor. Pressure sensors are provided between the top beam and the first connecting arm and between the top beam and the second connecting arm. The equipment main body is provided with an inertial measurement unit (IMU) and a main control board. The main control board is communicatively connected to the pressure sensors, the IMU, the torque reduction motor, and a remote server. The main control board is configured to: extract inertial features and pressure features based on inertial data and pressure data; determine whether the inertial features and the pressure features satisfy a lateral sway condition; in response to the inertial features and the pressure features satisfying the lateral sway condition, generate a first pressure compensation instruction according to the pressure features and user historical data, and send the first pressure compensation instruction to the torque reduction motor, the first pressure compensation instruction including a compensation time period and a first rotation angle; and control the torque reduction motor to rotate the first rotation angle within the compensation time period based on the first pressure compensation instruction.

In some embodiments, the main control board is further configured to: in response to receiving an installation instruction, control the torque reduction motor to rotate at a preset rotation speed to drive the lead screw to rotate until the pressure data is greater than a preset safety threshold.

In some embodiments, the main control board is further configured to: adjust the preset safety threshold according to a user exercise parameter and the user historical data.

In some embodiments, the main control board is further configured to: in response to the pressure data being less than the preset safety threshold, generate a second pressure compensation instruction according to the pressure data, and send the second pressure compensation instruction to the torque reduction motor, the second pressure compensation instruction including a compensation rotation speed; and control the torque reduction motor to operate at the compensation rotation speed based on the second pressure compensation instruction until the pressure data is greater than or equal to the preset safety threshold.

In some embodiments, each of a bottom of the top beam and a bottom of the slider is provided with a ball socket. Each of a top of the first connecting arm and a top of the second connecting arm is provided with a ball head. The first connecting arm is rotatably connected to the top beam and the second connecting arm is rotatably connected to the slider by rotatably embedding the ball heads into the ball sockets. A bushing is provided in each of the ball sockets.

In some embodiments, the top beam includes an upper top beam and a lower top beam. The upper top beam and the lower top beam are connected via a plurality of connection members and a plurality of reset springs. Each of the connection members includes a plurality of wedges and a plurality of slide rails.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram illustrating a structure of a fitness equipment according to some embodiments of the present disclosure;

FIG. 2 is a schematic diagram illustrating a structure of a fitness equipment according to some other embodiments of the present disclosure;

FIG. 3 is a schematic diagram illustrating a structure of a fitness equipment according to still some other embodiments of the present disclosure;

FIG. 4 is a schematic diagram illustrating a structure of a fitness equipment according to yet some other embodiments of the present disclosure;

FIG. 5 is a schematic diagram illustrating a structure of a fitness equipment according to yet some other embodiments of the present disclosure;

FIG. 6 is a schematic diagram illustrating a structure of a top beam according to some embodiments of the present disclosure;

FIG. 7 is a schematic diagram illustrating a ball socket and a ball head according to some embodiments of the present disclosure; and

FIG. 8 is a schematic diagram illustrating a structure of a fitness equipment according to yet some other embodiments of the present disclosure.

Reference numerals:

1. equipment main body, 11. inertial measurement unit (IMU), 12. main control board; 2. support stabilization structure; 21. support cylinder; 22. connecting plate; 23. support tray; 24. screw rod; 25. locking nut; 26. top tray; 27. installation frame; 28. jacking rod; 29. support top seat; 211. bottom beam; 212. top beam, 2121. upper top beam, 2122. lower top beam; 213. first connecting arm; 214. second connecting arm; 215. lead screw; 216. lead screw nut; 217. slider; 218. driving member, 2181. torque reduction motor; 219. ball socket; 220. ball head; 221. connection member, 2211. wedge, 2212. slide rail; 222. reset spring; 223. pressure sensor.

DETAILED DESCRIPTION

A brief introduction will be made below to the figures to be used in the description of embodiments. The figures do not represent all the embodiments.

Unless the context clearly indicates otherwise, the words 'a', 'an', 'one' and/or 'the' do not specifically refer to the singular form and may also include the plural form. Generally speaking, the terms 'comprise' and 'include' only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive enumeration, and a manner or device may also include other steps or elements.

It should be understood that, for the convenience of description of the present disclosure, the positional relationships indicated by the terms 'center', 'upper surface', 'lower surface', 'upper', 'lower', 'top', 'bottom', 'inner', 'outer', 'axial', 'radial', 'outer periphery', 'external' are based on the positional relationships shown in the figures, and do not indicate that the referred apparatus, component or unit must have a specific positional relationship, and should not be understood as a limitation on the present disclosure. However, if other words can achieve the same purpose, the words may be replaced by other expressions.

FIG. 1 is a schematic diagram illustrating a structure of a fitness equipment according to some embodiments of the present disclosure. FIG. 2 is a schematic diagram illustrating a structure of a fitness equipment according to some other embodiments of the present disclosure. FIG. 3 is a schematic diagram illustrating a structure of a fitness equipment according to still some other embodiments of the present disclosure. FIG. 4 is a schematic diagram illustrating a structure of a fitness equipment according to yet some other embodiments of the present disclosure. FIG. 5 is a schematic diagram illustrating a structure of a fitness equipment according to yet some other embodiments of the present disclosure.

In some embodiments, as shown in FIGS. 1-5, the fitness equipment includes an equipment main body 1, and a support stabilization structure 2 is provided at a top of the equipment main body 1. The support stabilization structure 2 is configured to abut against a top of a room.

The equipment main body 1 refers to a support base of the fitness equipment. All other functional components (such as a seat, a handle, a counterweight, the support stabilization structure 2, or the like) are directly or indirectly installed on the equipment main body 1.

It may be understood that, in the present disclosure, the top of the room refers to a lower surface of a ceiling or a floor slab of the room, and the other 'tops' refer to the uppermost end surface or region of the corresponding components of the fitness equipment in a normal placement state. The 'lower end' refers to an end of the component closer to a floor in the room, and the 'upper end' refers to an end of the component closer to the top of the room.

The top of the equipment main body 1 refers to the uppermost end surface or region of the equipment main body 1 in a normal placement and use state.

In some embodiments, the equipment main body 1 is a vertical comprehensive training rack, and a fitness unit is mounted on the comprehensive training rack.

The comprehensive training rack refers to a fixed strength training equipment that uses a metal frame as a basic structure, and supports a user to complete various different types of training movements by integrating or externally connecting various functional modules. For example, the comprehensive training rack is a CF comprehensive training rack, or the like.

The fitness unit refers to an independent module, component or mechanism that is mounted on the comprehensive training rack to achieve a specific training function or provide a specific training mode.

In some embodiments, the equipment main body 1 may also be other conventional equipment, such as a double arm pulley machine and other existing comprehensive training equipment.

The support stabilization structure 2 refers to a component used to abut against the top of the room to provide a stabilizing effect.

In some embodiments, as shown in FIG. 1, the support stabilization structure 2 includes a vertically arranged support cylinder 21, a connecting plate 22 provided at a lower end of the support cylinder 21, and a support tray 23 provided at a top of the support cylinder 21. The connecting plate 22 is attached to an adapted position at an upper end of the equipment main body 1 and is fixedly connected to the equipment main body 1 via a fastener.

It may be understood that, in the present disclosure, vertically arranged refers to a central axis of the component being parallel to a gravity direction.

The support cylinder 21 is used to connect the upper and lower ends (the connecting plate 22 and the support tray 23), and to transmit pressure from the top of the room (a reaction force against the top of the room) downward to the equipment main body 1. The support cylinder 21 may be a square cylinder, a round cylinder, or other columnar cylinders with cross-sectional shapes.

The connecting plate 22 refers to a component used to connect the support stabilization structure 2 and the equipment main body 1.

The support tray 23 refers to a component used to abut against the top of the room. In some embodiments, the shape of the support tray 23 includes a circular shape, a square shape, or the like.

The fastener refers to a general term for standard parts or custom parts used to fixedly connect two or a plurality of components together. For example, the fastener includes bolts, screws, nuts, washers, pins, or the like.

Attachment refers to a large area contact between a lower surface of the connecting plate 22 and a corresponding surface at the upper end of the equipment main body 1 (the adapted position) without an obvious gap therebetween.

The adapted position refers to a mounting point or a contact surface at the upper end of the equipment main body 1 and the connecting plate 22 that is preset in design and is capable of being completely matched. For example, the adapted position at the upper end of the equipment main body 1 may be a groove, a raised positioning pin, or the like. Correspondingly, a bottom of the connecting plate 22 has a protruding structure that is complementary to the shape of the groove and slightly smaller in size, or a positioning pin hole is provided at a corresponding position of the connecting plate 22 and the equipment main body 1, or the like. The shape and size of the adapted position match the connecting plate 22, so as to ensure that the connecting plate 22 may abut smoothly and accurately, and to enable the fastener to be smoothly installed. The adapted position may be set based on actual needs.

In some embodiments, the connecting plate 22 may also be fixedly connected to the equipment main body 1 by welding or any other feasible manner.

In some embodiments, the connecting plate 22 and the support tray 23 may be parts of the support cylinder 21 and integrally formed with the support cylinder 21; or the connecting plate 22 and the support tray 23 may be separate parts, fixed on the support cylinder 21 by welding, bolt fastening, or the like.

In some embodiments, the support stabilization structure 2 adopts a customized standard structure, which is retrofitted to a top end of the purchased equipment main body 1 and can be assembled by way of welding or bolt fastening the connecting plate 22 to the top of the equipment main body 1. The support cylinder 21 has a highly customized design and is highly adapted to the top of the room where the equipment is placed, so as to ensure that the support tray 23 can abut against the top of the room.

In some embodiments, as shown in FIG. 1, at least two support stabilization structures 2 are provided at intervals.

By providing the two support stabilization structures, the top end of the equipment main body 1 obtains effective support by being supported and connected to the top of the room at two points.

In some embodiments, as shown in FIG. 2 and FIG. 3, the support stabilization structure 2 includes a screw rod 24, a locking nut 25, and a top tray 26. The top of the equipment main body 1 is provided with a first threaded hole adapted to the screw rod 24. The screw rod 24 is vertically arranged. A lower end of the screw rod 24 is threadedly installed in the first threaded hole. The locking nut 25 is threadedly sleeved on the screw rod 24 and is configured to be rotated to abut against the top of the equipment main body 1. The top tray 26 is provided at an upper end of the screw rod 24.

The top tray 26 refers to a component configured to directly contact the top of the room. In some embodiments, the shape of the top tray 26 may be disc-shaped, block-shaped, or the like.

In some embodiments, the top tray 26 may be a part of the screw rod 24 and integrally formed with the screw rod 24; or the top tray 26 may be a separate part fixed on the screw rod 24 by welding or other appropriate manners.

In some embodiments, the fitness equipment adopts an adjustable height structural design overall. The first threaded hole is provided on the top of the equipment main body 1, and the lower end of the screw rod 24 is threadedly engaged in the first threaded hole, allowing vertical adjustment by rotating until the top tray 26 abuts against the top of the room. By rotating the locking nut 25 to abut against the top of the equipment main body 1 to lock the screw rod 24, a stable support connection with the top of the room may be achieved. The operation is very simple and quick, and is capable of adapting to rooms of different heights.

In some embodiments, as shown in FIG. 3, at least two of the support stabilization structures 2 are provided at intervals. By providing two of the support stabilization structures 2, a support connection with the top of the room is established at two points, such that the top of the equipment main body 1 obtains effective support.

In some embodiments, as shown in FIG. 4, the support stabilization structure 2 includes an installation frame 27. The installation frame 27 is horizontally arranged and installed at the upper end of the equipment main body 1 via the fastener. An upper end of the installation frame 27 is provided with a second threaded hole. A vertically arranged jacking rod 28 is threadedly connected in the second threaded hole. A support top seat 29 is provided at an upper end of the jacking rod 28.

The installation frame 27 refers to a frame configured to install and fix other functional components (e.g., the jacking rod 28, or the like).

The horizontal arrangement of the installation frame 27 refers to that an upper surface (or an entirety) of the installation frame 27 is parallel to a horizontal plane.

In some embodiments, the installation frame 27 may also be fixedly connected to the equipment main body 1 by welding or any other feasible manner.

The jacking rod 28 refers to a vertically arranged rod-shaped part with a lower end provided with an external thread. The jacking rod 28 may be raised or lowered by rotation, thereby adjusting a jacking height.

The support top seat 29 refers to a component configured to directly contact the top of the room. For example, the support top seat 29 may be disc-shaped, block-shaped, or a structure with a buffer pad, or the like.

In some embodiments, the support stabilization structure 2 adopts the installation frame 27 additionally installed at the top of the equipment main body 1 by welding or bolts, which can ensure good assembly of the jacking rod 28 at the upper end thereof. The jacking rod 28 can be rotated up and down to adjust a height. Then a support connection with the top of the room can be established via the support top seat 29. The operation is relatively convenient.

In some embodiments, as shown in FIG. 5, the support stabilization structure 2 includes a bottom beam 211, a top beam 212, a first connecting arm 213, and a second connecting arm 214. The bottom beam 211 is horizontally fixed to the top of the equipment main body 1. The top beam 212 is arranged parallel to and above the bottom beam 211. A middle portion of the first connecting arm 213 and a middle portion of the second connecting arm 214 are crossed and hinged. A lower end of the first connecting arm 213 is hinged to one end of the bottom beam 211. A lead screw 215 is rotatably installed along a length direction of the bottom beam 211. A lead screw nut 216 is threadedly engaged on the lead screw 215. An upper end of the second connecting arm 214 is hinged to the top beam 212. A lower end of the second connecting arm 214 is movably connected to the lead screw nut 216. An upper end of the first connecting arm 213 is connected to a slider 217. The slider 217 is slidably connected to the top beam 212. And one end of the lead screw 215 is provided with a driving member 218.

The bottom beam 211 refers to a component configured to be fixed to the equipment main body 1.

The top beam 212 refers to a component configured to directly contact the top of the room.

In some embodiments, as shown in FIG. 5, the bottom beam 211 and the top beam 212 are horizontally arranged.

FIG. 6 is a schematic diagram illustrating a structure of a top beam according to some embodiments of the present disclosure.

In some embodiments, as shown in FIG. 6, the top beam 212 includes an upper top beam 2121 and a lower top beam 2122. The upper top beam 2121 and the lower top beam 2122 are connected via a plurality of connection members 221 and a plurality of reset springs 222.

The connection members 221 refer to a general term for components configured to connect the upper and lower top beams.

In some embodiments, each of the connection members 221 includes a plurality of wedges 2211 and a plurality of slide rails 2212.

The wedges 2211 refer to mechanical parts having inclined surfaces. In some embodiments, the material of the wedges 2211 may be metal, for example, alloy steel, bearing steel, or the like.

The slide rails 2212 refer to grooves or ridges configured to guide the wedges 2211 to slide along a specific trajectory. The specific trajectory refers to a movement path preset inside the slide rails 2212, which the wedges must follow. In some embodiments, the slide rails 2212 are provided on a connecting surface between the wedges of the upper top beam 2121 and the lower top beam 2122.

In some embodiments, as shown in FIG. 6, the slide rails 2212 are inclined tracks that are higher on the left and lower on the right. The slide rails may also be inclined tracks that are higher on the right and lower on the left. The direction of the slide rails 2212 may be set according to actual demands.

The reset springs 222 refer to structures configured to reset the upper top beam 2121 and the lower top beam 2122 after the wedges 2211 undergo a relative displacement.

In some embodiments, when the fitness equipment operates smoothly without a significant lateral sway, the reset springs 222 are in a relaxed or slightly stretched state, allowing centers of the upper top beam 2121 and the lower top beam 2122 to remain aligned. When the fitness equipment is subjected to a severe lateral impact (assuming that the lower top beam 2122 slides to the right relative to the upper top beam 2121), the wedges of the lower top beam 2122 move to the right. Due to the surfaces of the wedges being higher on the left and lower on the right, the wedges of the lower top beam 2122 actually climb upward, pushing the wedges of the upper top beam 2121. The wedges of the upper top beam 2121 are forced to be lifted upward. A vertical distance between the upper top beam 2121 and the lower top beam 2122 increases, and the reset springs 222 are forcibly stretched. When the lateral impact force disappears and there is no external force maintaining the increased height, the stretched reset springs 222 begin to contract, generating a force that pulls down the upper top beam 2121 and lifts up the lower top beam 2122. The wedges 2211 are forced to undergo relative movement. The lower top beam 2122 slides to the left with the wedges 2211 until it returns to the position before the impact occurs. At this time, the centers of the upper and lower top beams are realigned, and the reset springs 222 also return to the relaxed or slightly stretched state.

In some embodiments, the slide rails 2212 are configured to guide the mating wedges to slide along the slide rails, thereby converting the horizontal sliding into a vertical displacement of the wedges when subjected to a force in a horizontal direction. The greater the lateral impact force, the greater the sliding distance of the wedges, and the more the thickness of the entire top beam 212 increases in a vertical direction, thereby engaging with the top of the room at an extremely fast speed.

In some embodiments of the present disclosure, by utilizing a self-locking characteristic of a pure mechanical structure, the lateral impact force is instantaneously converted into a vertical jacking force, thereby achieving a zero-delay anti-sideslip (preventing displacement of the fitness equipment in a horizontal direction) locking.

The first connecting arm 213 and the second connecting arm 214 refer to two arm-shaped components arranged in a crossed manner.

In some embodiments, the bottom beam 211 may be horizontally fixed to the top of the equipment main body 1 in a plurality of manners, for example, by welding, bolt fastening, or the like. The horizontal fixation refers to that after the bottom beam 211 is installed, an upper surface (or a length direction) thereof is parallel to a horizontal plane.

In some embodiments, the bottom beam 211 is a hollow structure or a partially hollow structure. In the bottom beam 211, the lead screw 215 is rotatably installed along the length direction.

The lead screw 215 refers to a long rod provided with an external thread.

Hinged connection may be achieved in a plurality of manners, for example, by bearing hinging, rivets, ball head hinging, or the like.

Movable connection refers to that two components are connected together, allowing a relative movement to occur, while simultaneously being able to transmit force and movement. Movable connection may be achieved in a plurality of manners, for example, by pin shaft hinging, spherical plain bearings, or the like.

Through the movable connection, a relative rotation between the lower end of the second connecting arm 214 and the lead screw nut 216 is allowed, while a thrust of the lead screw nut 216 may be transmitted to the second connecting arm 214.

The slider 217 refers to a component configured to slidably cooperate with the top beam. In some embodiments, when the top beam 212 is raised and lowered, the upper end of the first connecting arm 213 slides horizontally on the top beam 212 via the slider 217 to adapt to changes in angle.

Sliding connection refers to that two components are connected together, allowing a linear relative sliding to occur (moving along a certain direction), but cannot be separated therefrom. Sliding connection may be achieved in a plurality of manners, for example, by cooperation between a T-slot and a T-block, or the like.

That one end of the lead screw 215 is provided with the driving member 218 refers to that the driving member 218 is provided at the end of the lead screw 215 extending out of the lower top beam 2122.

The driving member 218 refers to a component configured to drive the lead screw 215 to rotate. For example, the driving member 218 may be a hand crank, a motor, or the like.

In some embodiments, the driving member 218 is a handwheel knob.

The handwheel knob refers to a handle with spokes or a knurled outer ring, which is convenient for gripping and rotating by hand. In some embodiments, the shape of the handwheel knob includes disc shapes, spoke shapes, or the like.

In some embodiments, a channel steel-like bottom beam 211 is additionally installed at the top of the equipment main body 1 by welding or bolt connection. The first connecting arm 213 is hinged at one end inside the groove of the bottom beam 211, the lead screw nut 216 is slidably installed, and the lead screw 215 is installed (both ends of the lead screw 215 can be fixed at two points in the bottom beam 211 via two fixing blocks that are rotationally connected to corresponding ends of the lead screw 215). Then, the first connecting arm 213 and the second connecting arm 214 are assembled with the bottom beam 211 and the top beam 212 according to the above-described structure. During use, by operating the lead screw 215 to rotate via the driving member 218, the lead screw nut 216 and the slider 217 can be driven to slide synchronously. During the sliding, a height of a crossing point of the first connecting arm 213 and the second connecting arm 214 changes (rises or lowers), thereby causing a height of the top beam 212 to rise or lower, such that the top beam 212 is support-connected to the top of the room and provides a better support stabilization effect for the top of the equipment main body 1. The structural design is relatively reasonable, and the operation is relatively convenient.

In some embodiments, as shown in FIG. 5, two sets of the support stabilization structures 2 are provided at intervals. By providing two sets of the support stabilization structures 2, a support connection with the top of the room is established at a plurality of points, such that the top of the equipment main body 1 obtains effective support.

FIG. 7 is a schematic diagram illustrating a ball socket and a ball head according to some embodiments of the present disclosure.

In some embodiments, each of a bottom of the top beam 212 and a bottom of the slider 217 is provided with a ball socket 219. Each of a top of the first connecting arm 213 and a top of the second connecting arm 214 is provided with a ball head 220. The first connecting arm 213 is rotatably connected to the top beam 212 and the second connecting arm 214 is rotatably connected to the slider 217 by rotatably embedding the ball heads 220 into the ball sockets 219. A bushing is provided in each of the ball sockets 219.

The ball sockets 219 and the ball heads 220 refer to two mating parts forming a universal joint. In some embodiments, the structures of the ball sockets 219 and the ball heads 220 are as shown in FIG. 7.

By providing the ball sockets 219 and the ball heads 220, the top beam 212 is allowed to freely rotate within a certain angular range.

The bushing refers to a curved structure padded at the joint of the ball sockets 219 and the ball heads 220, which serves to reduce wear, damp vibration, or seal. In some embodiments, the material of the bushing includes nylon, polytetrafluoroethylene, or the like.

In some embodiments of the present disclosure, by providing the ball sockets and the ball heads, the support stabilization structure can adapt to an inclination or unevenness of a ceiling, converting a point contact into a surface contact, thereby increasing a friction force and protecting a surface of the room.

When in use, the fitness equipment is supported on the ground by its own base. Then, the fitness equipment cooperates with the support stabilization structure 2 installed at the top thereof. By utilizing the support stabilization structure 2 to abut against the top of the room (the ceiling), both the bottom and the top of the equipment main body 1 obtain effective support. Thereby, during use, a problem of the entire equipment overturning or tipping over is eliminated. Overall, the structural design is simple and reasonable. By combining the support stabilization structure with the top of the room, a firm fixation of the entire equipment is achieved, thereby eliminating overturning accidents that may occur during an exercise process. Additionally, while making the equipment miniaturized and lightweight, the design also ensures safety and stability during use.

FIG. 8 is a schematic diagram illustrating a structure of a fitness equipment according to yet some other embodiments of the present disclosure.

In some embodiments, as shown in FIG. 8, the driving member 218 includes a torque reduction motor 2181; pressure sensors 223 are provided between the top beam 212 and the first connecting arm 213, and between the top beam 212 and the second connecting arm 214; the equipment main body 1 is provided with an inertial measurement unit (IMU) 11 and a main control board 12; and the main control board 12 is communicatively connected to the pressure sensors 223, the IMU 11, the torque reduction motor 2181, and a remote server.

The torque reduction motor 2181 refers to a driving device that integrates a motor and a gearbox, which increases a torque of an output shaft by reducing rotation speed. The motor includes a brushless direct current (BLDC) motor or the like. The gearbox includes a worm gear reducer or the like.

The pressure sensors 223 refer to sensors used to determine jacking pressure received by the top beam 212 from the first connecting arm 213 and the second connecting arm 214. For example, the pressure sensors include a thin-film pressure sensor, a resistance strain gauge pressure sensor, or the like.

The IMU 11 refers to a device used to determine the acceleration and angular velocity of the equipment main body 1, thereby perceiving a motion state and a posture (such as inclination, vibration, rotation, etc.) of the equipment main body 1. For example, the IMU 11 includes a gyroscope, an accelerometer, or the like.

The remote server refers to a high-performance computer or a computer cluster located outside the local device (typically in the cloud or a remote data center). The remote server is used to receive, store, process, and analyze data from a plurality of devices (such as the pressure sensors 223, the IMU 11, the torque reduction motor 2181, etc.), and to provide various network services.

The main control board 12 is an embedded electronic circuit board. The main control board 12 may process at least one of data or information obtained from other devices (such as the IMU 11, the pressure sensors 223, etc.). The main control board 12 may execute program instructions based on at least one of the data, the information, or processing results to perform one or more functions described in the present application. In some embodiments, the main control board 12 may be a microcontroller.

In some embodiments, the main control board 12 is configured to: extract inertial features and pressure features based on inertial data and pressure data; determine whether the inertial features and the pressure features satisfy a lateral sway condition; in response to the inertial features and the pressure features satisfying the lateral sway condition, generate a first pressure compensation instruction according to the pressure features and user historical data, and send the first pressure compensation instruction to the torque reduction motor; and control the torque reduction motor to rotate a first rotation angle within a compensation time period based on the first pressure compensation instruction.

The inertial data refers to raw measurement values used to reflect the motion state of the equipment main body 1. In some embodiments, the inertial data is time-series data, including three-axis acceleration data and three-axis angular velocity data at a plurality of moments within a historical period. The three-axis acceleration data includes acceleration (including gravity and motion acceleration) along the X/Y/Z three axes. The three-axis angular velocity data includes angular velocity rotated around the X/Y/Z three axes. The X/Y/Z three axes are established with the position of the IMU 11 on the equipment main body 1 as an origin.

In some embodiments, the inertial data is obtained based on the IMU 11.

The pressure data refers to raw data used to reflect a magnitude of jacking force between the top beam 212 and the connecting arms. In some embodiments, the pressure data is time-series data, including pressure values at a plurality of moments within a historical period.

In some embodiments, the pressure data is obtained based on the pressure sensors 223.

The inertial features refer to representative feature quantities extracted from the raw inertial data, used to describe the motion state of the equipment main body 1. For example, the inertial features include an inclination angle, a lateral sway amplitude, and a vibration frequency. The inclination angle refers to a deflection angle of the equipment main body 1 relative to the gravity direction. The lateral sway amplitude refers to the degree of intensity of a back-and-forth swing of the equipment main body 1 in a horizontal direction (mainly a left/right direction). The vibration frequency refers to a number of swings per second of the equipment main body 1.

The pressure features refer to representative feature quantities extracted from the raw pressure data, used to describe the state of jacking force. For example, the pressure features include a pressure fluctuation amplitude, a pressure trough value, a pressure trough moment, a pressure change rate, and an average support pressure. The pressure fluctuation amplitude refers to data used to reflect the degree of intensity of pressure fluctuation. The pressure fluctuation amplitude may be represented by a difference between a maximum value and a minimum value of the jacking pressure within a period of time. The pressure trough value refers to the minimum value reached by the jacking pressure within a period of time. The pressure trough moment refers to a time point at which the pressure trough value occurs. The pressure change rate refers to a rate and a direction (increase or decrease) of change of the jacking pressure within a unit time. The average support pressure refers to an average value of the jacking pressure within a period of time.

In some embodiments, the main control board 12 may extract inertial features based on the inertial data in a plurality of manners.

For example, the main control board 12 may fuse the three-axis acceleration data and the three-axis angular velocity data through a first preset algorithm based on the inertial data to obtain the inclination angle. The first preset algorithm includes a complementary filtering algorithm or the like. The main control board 12 may process the three-axis acceleration data through a second preset algorithm based on the inertial data to obtain the lateral sway amplitude. The second preset algorithm includes a time-domain quadratic integration approach, a frequency-domain integration approach, a Kalman filtering estimation approach, or the like. The main control board 12 may preprocess the three-axis acceleration data (mainly the X/Y-axis acceleration data) based on the inertial data, and then perform a frequency domain transformation, to search for a frequency point with the largest amplitude in a transformed frequency domain power spectrum as the vibration frequency. The preprocessing includes mean removal processing or the like. The mean removal processing refers to subtracting an arithmetic mean from a signal to cause the processed signal to fluctuate around a zero value. The mean removal processing may be implemented in a plurality of manners, for example, simple mean subtraction, real-time/streaming mean removal, or the like. The frequency domain transformation refers to a process of converting a signal from a time domain to a frequency domain. The frequency domain transformation may be performed in a plurality of manners, for example, Fast Fourier Transform (FFT), Continuous Wavelet Transform (CWT), or the like.

In some embodiments, the main control board 12 can extract pressure features based on the pressure data in a plurality of manners. For example, within a determined time window, the main control board 12 preprocesses the raw pressure data to remove noise interference; determines a difference between a maximum value and a minimum value of the preprocessed jacking pressure within the time window as the pressure fluctuation amplitude; selects the minimum value of the preprocessed jacking pressure within the time window as the pressure trough value; performs a parabolic fit near the minimum value, and uses a resulting time point as the pressure trough moment; averages all the preprocessed jacking pressures within the time window, and uses the resulting mean value as the average support pressure; determines a difference between the current moment and the previous moment, and uses the difference value as the pressure change rate. A window length of the determined time window is set according to the vibration frequency, and includes at least two complete cycles.

The lateral sway condition refers to a determination logic for determining whether the equipment main body 1 oscillates or vibrates reciprocally and periodically in a horizontal direction. In some embodiments, determining whether the lateral sway condition is satisfied includes a determination of the inertial features and a determination of the pressure features. The determination of the inertial features includes whether any one of the inclination angle, the lateral sway amplitude, and the vibration frequency is greater than a corresponding preset threshold. The determination of the pressure features includes whether the pressure fluctuation amplitude is greater than a preset pressure threshold and whether the pressure change rate alternates periodically between positive and negative values. The preset thresholds and the preset pressure threshold may be set based on actual needs.

In some embodiments, the main control board 12 determines that any one of the inclination angle, the lateral sway amplitude, and the vibration frequency is greater than the corresponding preset threshold, and determines that the pressure fluctuation amplitude is greater than the preset pressure threshold and the pressure change rate alternates periodically between positive and negative values, then determines that the lateral sway condition is satisfied.

The user historical data refers to maximum lateral shear force data recorded by a user during previous usage. The lateral shear force refers to a horizontal acting force perpendicular to a supporting direction (i.e., the gravity direction), which is a lateral thrust or a pulling force borne by the equipment.

The first pressure compensation instruction refers to a micro pressure compensation control command executed before and after the pressure trough moment.

In some embodiments, the first pressure compensation instruction includes the compensation time period and the first rotation angle.

The compensation time period refers to a time period for pressure compensation centered on the pressure trough moment. For example, the compensation time period includes a window with a duration of 40 ms, a window with a duration of 100 ms, and a window with a duration of 200 ms. The compensation time period may be centered on the pressure trough moment, and extends half of its duration both forward and backward.

The first rotation angle refers to an angle that the torque reduction motor needs to rotate. For example, the first rotation angle may be 5°, 45°, or 90°.

In some embodiments, the main control board 12 controls the torque reduction motor 2181 to rotate the first rotation angle within the compensation time period based on the first pressure compensation instruction. The torque reduction motor 2181 rotates to drive the screw rod 215 to rotate, thereby causing the lead screw nut 216 and the slider 217 to slide synchronously. During the sliding, the height of an intersection point of the first connecting arm 213 and the second connecting arm 214 changes (rises or lowers), thereby causing the height of the top beam 212 to rise or lower.

In some embodiments, the main control board 12 may generate the first pressure compensation instruction in a plurality of manners based on the pressure features and the user historical data. For example, the main control board 12 may use a period of time before and after the pressure trough moment as the compensation time period, and determines the first rotation angle by querying a first preset table based on the pressure trough value and the user historical data. The length of the compensation time period may be set based on actual needs. The first preset table refers to a table including a correspondence between the pressure trough value and the user historical data, and the first rotation angle. The first preset table may be constructed based on a plurality of data pieces in historical data, where an absolute value of a difference between the pressure trough value and the user historical data is positively correlated with the first rotation angle.

In some embodiments, when the main control board determines that the lateral sway condition is not satisfied, no pressure compensation operation needs to be performed, and the torque reduction motor has no action. Meanwhile, the IMU and the pressure sensors continue to acquire the inertial data and the pressure data, and the main control board continues to perform the corresponding determination.

In some embodiments, the main control board 12 is further configured to: in response to receiving the installation instruction, control the torque reduction motor to rotate at a preset rotation speed to drive the screw rod 215 to rotate until the pressure data is greater than a preset safety threshold.

The installation instruction refers to a control command sent from a remote server to the main control board 12, for starting or configuring an installation process of the fitness equipment.

The preset rotation speed refers to a rotation speed preset by the torque reduction motor during the installation process. For example, the preset rotation speed may be 30 rpm or 60 rpm. The preset rotation speed may be set based on actual needs.

The preset safety threshold refers to a maximum allowable pressure value detected by the pressure sensors during the installation process.

In some embodiments, the pressure data being greater than the preset safety threshold represents that the top beam has been in close contact with the ceiling, generating sufficient static friction to resist lateral thrust, thereby ensuring stability of the fitness equipment.

In some embodiments, the preset safety threshold may be obtained in a plurality of manners, for example, by an installer based on actual needs.

In some embodiments, the main control board 12 is further configured to: adjust the preset safety threshold according to a user exercise parameter and the user historical data.

The user exercise parameter refers to a parameter for describing a current exercise state of a user. In some embodiments, the user exercise parameter includes an exercise type and a body weight. The exercise type includes pull-ups, hanging leg raises, barbell squats/presses, or the like. The user exercise parameter may be obtained by a user input.

In some embodiments, the main control board 12 determines a top support pressure required to counteract or weaken the maximum lateral shear force by querying a second preset table based on a user exercise habit and the user historical data, and sets the preset safety threshold as the aforementioned top support pressure. The second preset table refers to a table including a correspondence between the body weight, the exercise type, the user historical data, and the top support pressure. The second preset table may be set based on experience.

In some embodiments of the present disclosure, the top support pressure is dynamically adjusted according to user individual differences and historical training intensity, to avoid unnecessary excessive pressure on a building structure while ensuring safety.

In some embodiments of the present disclosure, by setting the preset rotation speed and the preset safety threshold, automated rapid installation and standardized pre-tightening of the equipment are achieved, avoiding safety hazards caused by uneven manual operation force.

In some embodiments, the main control board 12 is further configured to: in response to the pressure data being less than the preset safety threshold, generate a second pressure compensation instruction according to the pressure data, and send the second pressure compensation instruction to the torque reduction motor; and control the torque reduction motor to operate at a compensation rotation speed based on the second pressure compensation instruction until the pressure data is greater than or equal to the preset safety threshold.

The second pressure compensation instruction refers to a control instruction for adjusting a rotation speed of the torque reduction motor. In some embodiments, the second pressure compensation instruction includes the compensation rotation speed.

The compensation rotation speed refers to a rotation speed of the torque reduction motor for adjusting the pressure.

In some embodiments, in response to the pressure data being less than the preset safety threshold, the main control board 12 may generate the second pressure compensation instruction in a plurality of manners according to the pressure data. For example, the main control board 12 adopts a segmented adjustment manner. First, the main control board 12 determines an absolute value of a difference between the pressure data and the preset safety threshold. If the absolute value is greater than or equal to a first pressurization threshold, it is determined that the fitness equipment is in an extremely loose state, the pressure needs to be rapidly established, and the compensation rotation speed is set to a high rotation speed (e.g., 200 rpm). If the absolute value is less than the first pressurization threshold but greater than or equal to a second pressurization threshold, it is determined that the fitness equipment is generally loose, and the compensation rotation speed is set to a medium rotation speed (e.g., 100 rpm). And if the absolute value is less than the second pressurization threshold, it is determined that the fitness equipment is close to being locked, an overshooting damage to the ceiling needs to be prevented, and the compensation rotation speed is set to a low rotation speed (e.g., 30 rpm). The first pressurization threshold, the second pressurization threshold, the high rotation speed, the medium rotation speed, and the low rotation speed may be set based on experience.

In some embodiments, after determining the compensation rotation speed, the main control board 12 controls the torque reduction motor to operate at the compensation rotation speed until the pressure data is greater than or equal to the preset safety threshold.

In some embodiments of the present disclosure, by setting the second pressure compensation instruction, a decay of support force caused by environmental changes or material creep is automatically compensated for, thereby ensuring stability of the equipment during a long-term static state.

In some embodiments of the present disclosure, by providing the IMU and the pressure sensors, the exercise state can be monitored, and dynamic pressure compensation can be actively performed at force-vulnerable points, effectively preventing loosening of the fitness equipment caused by vibration during intense training, thereby significantly improving usage safety.

Certain features, structures, or characteristics in one or more embodiments of the present disclosure may be appropriately combined.

In some embodiments, numbers describing components or quantities of attributes are used, and it should be understood that such numbers used for embodiment description are modified by the terms 'about', 'approximately', or 'substantially' in some examples. Unless otherwise indicated, the terms 'about', 'approximately', or 'substantially' indicate that the stated numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and the claims are all approximate values, and the approximate values may change according to characteristics required by individual embodiments. Although numerical ranges and parameters for confirming their scope in some embodiments of the present disclosure are approximate values, in specific embodiments, the setting of such numerical values is as accurate as possible within a feasible range.

If descriptions, definitions, and/or usages of terms in materials incorporated by reference in the present disclosure are inconsistent or conflict with content described in the present disclosure, the descriptions, definitions, and/or usages of terms in the present disclosure shall prevail.

Claims

1. A fitness equipment, comprising: an equipment main body; and a support stabilization structure provided at a top of the equipment main body, wherein the support stabilization structure is configured to abut against a top of a room.

2. The fitness equipment of claim 1, wherein the equipment main body is a vertical comprehensive training rack, and a fitness unit is mounted on the comprehensive training rack.

3. The fitness equipment of claim 1, wherein the support stabilization structure includes a vertically arranged support cylinder, a connecting plate provided at a lower end of the support cylinder, and a support tray provided at a top of the support cylinder, wherein the connecting plate is attached to an adapted position at an upper end of the equipment main body and is fixedly connected to the equipment main body via a fastener.

4. The fitness equipment of claim 3, wherein at least two support stabilization structures are provided at intervals.

5. The fitness equipment of claim 1, wherein the support stabilization structure includes a screw rod, a locking nut, and a top tray, wherein a top of the equipment main body is provided with a first threaded hole adapted to the screw rod; the screw rod is vertically arranged; a lower end of the screw rod is threadedly installed in the first threaded hole; the locking nut is threadedly sleeved on the screw rod and is configured to be rotated to abut against the top of the equipment main body; and the top tray is provided at an upper end of the screw rod.

6. The fitness equipment of claim 5, wherein at least two support stabilization structures are provided at intervals.

7. The fitness equipment of claim 1, wherein the support stabilization structure includes an installation frame, the installation frame is horizontally arranged and installed at an upper end of the equipment main body via a fastener, wherein an upper end of the installation frame is provided with a second threaded hole; a vertically arranged jacking rod is threadedly connected in the second threaded hole; and a support top seat is provided at an upper end of the top rod.

8. The fitness equipment of claim 1, wherein the support stabilization structure includes a bottom beam, a top beam, a first connecting arm, and a second connecting arm; wherein the bottom beam is horizontally fixed to a top of the equipment main body; the top beam is arranged parallel to and above the bottom beam; a middle portion of the first connecting arm and a middle portion of the second connecting arm are crossed and hinged; a lower end of the first connecting arm is hinged to one end of the bottom beam; a lead screw is rotatably installed along a length direction of the bottom beam; a lead screw nut is threadedly engaged on the lead screw; an upper end of the second connecting arm is hinged to the top beam; a lower end of the second connecting arm is movably connected to the lead screw nut; an upper end of the first connecting arm is connected to a slider; the slider is slidably connected to the top beam; and one end of the lead screw is provided with a driving member.

9. The fitness equipment of claim 8, wherein the driving member is a handwheel knob.

10. The fitness equipment of claim 8, wherein two sets of the support stabilization structures are provided at intervals.

11. The fitness equipment of claim 8, wherein the driving member includes a torque reduction motor; pressure sensors are provided between the top beam and the first connecting arm and between the top beam and the second connecting arm; the equipment main body is provided with an inertial measurement unit (IMU) and a main control board; and the main control board is communicatively connected to the pressure sensors, the IMU, the torque reduction motor, and a remote server; wherein the main control board is configured to: extract inertial features and pressure features based on inertial data and pressure data; determine whether the inertial features and the pressure features satisfy a lateral sway condition; in response to the inertial features and the pressure features satisfying the lateral sway condition, generate a first pressure compensation instruction according to the pressure features and user historical data, and send the first pressure compensation instruction to the torque reduction motor, wherein the first pressure compensation instruction includes a compensation time period and a first rotation angle; and control the torque reduction motor to rotate the first rotation angle within the compensation time period based on the first pressure compensation instruction.

12. The fitness equipment of claim 11, wherein the main control board is further configured to: in response to receiving an installation instruction, control the torque reduction motor to rotate at a preset rotation speed to drive the lead screw to rotate until the pressure data is greater than a preset safety threshold.

13. The fitness equipment of claim 12, wherein the main control board is further configured to: adjust the preset safety threshold according to a user exercise parameter and the user historical data.

14. The fitness equipment of claim 11, wherein the main control board is further configured to: in response to the pressure data being less than the preset safety threshold, generate a second pressure compensation instruction according to the pressure data, and send the second pressure compensation instruction to the torque reduction motor, wherein the second pressure compensation instruction includes a compensation rotation speed; and control the torque reduction motor to operate at the compensation rotation speed based on the second pressure compensation instruction until the pressure data is greater than or equal to the preset safety threshold.

15. The fitness equipment of claim 8, wherein each of a bottom of the top beam and a bottom of the slider is provided with a ball socket; each of a top of the first connecting arm and a top of the second connecting arm is provided with a ball head; the first connecting arm is rotatably connected to the top beam and the second connecting arm is rotatably connected to the slider by rotatably embedding the ball heads into the ball sockets; and a bushing is provided in each of the ball sockets.

16. The fitness equipment of claim 8, wherein the top beam includes an upper top beam and a lower top beam; the upper top beam and the lower top beam are connected via a plurality of connection members and a plurality of reset springs; and each of the connection members includes a plurality of wedges and a plurality of slide rails.