MULTIPURPOSE LOAD LIFTING WORK PLATFORM OR/AND COMPOSITE BRIDGE STRUCTURE
The present invention discloses a multi-purpose load lifting work platform or/and composite bridge structure, comprising a framework, at least one work platform, a drive mechanism, and an electrical control devices. One end of the pole-shaped structure is connected with the framework in a movable manner, and the other end of the pole-shaped structure is connected with the work platform in a movable manner, the work platform can run with the pole-shaped structure together. The work platform can run in a curve track relative to the framework by power, and can stop at any position in running track. This invention can provide two platforms working coordinately or a single platform working independently. The working area of the two platforms greatly exceeds that of the existing common equipment with a single platform. It can load bulky objects without sway, and can also be used as composite or assembly bridge structure.
The invention relates to a multipurpose load lifting work platform, which can be also used as a modular structure for assembling a bridge. The multipurpose load lifting work platform is applicable to the following fields: crane, load lift, elevator, stage equipment, movable foundation for mobile house, stereoscopic parking equipment, stereoscopic storing and logistics equipment, carrying equipment, and bridge structure.
BACKGROUND OF THE INVENTIONMost of current cranes, lifts, elevators or other carrying equipment works with the track of vertical lifting, the loads lifted sway back and forth and the horizontal stability of the load is poor. Also, only one work platform is provided. These defects result in their limited scope of use. In addition, each of the equipment consumes a considerable amount of energy during operation.
On the other hand, in bridge construction, modular manufacturing and assembly have been achieved, but still need bridge machine or crane hoisting modular construction for accurate installation, and need a large number of artificial precision operations, and need a long period time of building. Furthermore, there are problems which remain to be solved in bridge construction, including long construction period and high degree of difficulty in construction and dismantling. In addition, most of the composite rapid bridging structures or machineries can be used only for bridging rather than for other purposes.
SUMMARY OF THE INVENTIONThe invention aims at overcoming the above deficiencies and providing a load lifting equipment with a curve trajectory. The load lifting equipment can provide the cooperated work of two platforms or the independent work of one platform. The pole-shaped structure is hinged with and supports the work platform. The work platform can move relative to the framework in a curve track and can stop at any position on the movement track. The working area of the two work platforms is substantially larger than that of the currently common load lift, elevator, crane and other lifting and carrying equipment operated with a single platform. The equipment can load large-size objects such as construction materials, automobiles, ores, ships, mobile houses, containers, etc., without sway, and also can be used as a composite or assembly type bridge structure.
In addition, wireless transmitting and receiving devices can be optionally assembled respectively on the front and rear ends of the work platform during the transition movement of the work platform. When an obstacle is identified within the predetermined distance, such as a barrier within 1.5 m, the wireless transmitting and receiving device sends a signal to stop the running equipment, thus ensuring the work platform not to collide with the surrounding obstacles or persons during the running of the equipment.
A new type blocking device with a spring button can be assembled optionally on the equipment. It can prevent a load from sliding down during the work of the equipment. In addition, wheels can be optional on four corners of the base of the framework of the equipment such that the equipment has mobility and can be moved to anywhere. Pickets are arranged inside the four columns and can be used for fixing on loose and soft foundations (such as outdoor sand grounds).
A touch and stop device can be assembled optionally at each work platform of the inventive equipment on a side opposite to the automatic obstacle monitoring device to ensure the safety when the inventive equipment touches an obstacle and stops at the side of the work platform during operation.
When operating one or more inventive equipment, the work platforms of every equipment are stayed at or close to the same horizontal position (a certain height difference between the work platforms is permitted) and the equipment are connected from the front to the end, the slope is arranged at both ends, a bridge can be built quickly, as shown in
The design scheme of the invention is as follows:
The load lifting work platform or/and composite bridge structure, comprising a framework, upper and lower work platforms, a platform driving mechanism, driven and driving aided mechanism, an electrical control device, an automatic obstacle monitoring device which can be optional, wheels and pickets which can be optional, and a blocking device and a touch and stop device which can be optional. The load lifting work platform or/and composite bridge structure provides a load lifting equipment with single platform operating or two platforms cooperatively operating. The work platform can run in a curve path around a direct or indirect connection point between one end of pole-shaped structure and the framework, and can stop at any position on the movement path.
The work platform moves with the aid of driving mechanism and all or part of driven and driving mechanism, so that the work platform run in curve path movement around the direct or indirect connection point between the pole-shaped structure and the framework.
The detailed structure of the equipment is described as follows:
(1) The framework is classified into two types: four-column type and two-central-column type according to the number of the columns with fixed pulleys on the top.
1. Four-column type framework, comprising a base 11 and four columns 12, and crossbeam 13, column provided with a fixed pulley 14 on its top and a guide pulley close to the bottom 15, and an intermediate supporting structure 16 between two crossbeams 13. In this case, the intermediate supporting structure 16 can be optional depending on the actual load. The intermediate supporting structure is designed as a or shape, as shown in
2. Two-central-column type framework: The difference between two-column-type and four-column-type is that two central columns 121 with two pulleys fixed on its top replace four columns with one pulley fixed at its top, and the rest of the structure is the same as the four-column type framework, as shown in
(2) The work platform, comprising the upper layer work platform 21 and the lower layer work platform 22, and the upper and lower layer work platforms can move interactively through the coupling of the driven and driving aided mechanism. When only one platform is required to work with, it is possible to arrange and use one part of the structure of the driven and driving aided mechanism, as shown in
It should be noted that to adapt to the requirements for lifting in some circumstances, the platform can be simplified to the crossbeam, hook, lifting ring or special-purpose fixtures and riggings, as shown in
All of these examples as mentioned above are one part of various forms of the work platform.
(3) The driving mechanism as shown in
(4) Driven and driving aided mechanism: the mechanism runs with the platform and drives the movement of the platform. It solves the issues that the linkage mechanics can not work smoothly in low-speed movement and the possible reversal or failure. The driven and driving aided mechanism can converse and transfer the kinetic energy and potential energy between two work platforms.
For the different types of the pole-shaped structures, two types of driven and driving aided mechanisms are provided. Any one of two types of the driven and driving aided mechanisms can be used in the inventive equipment independently, and they can also replace each other or be combined together in the equipment, or even be used as one part of the structure of each type in the equipment. If two types of mechanisms are used in combination, more safe transmission guarantee will be provided to improve the work efficiency.
The pole-shaped structure refers to a stable structure which can be movably connected to the platform with the framework. One end of the pole-shaped structure is hinged with and supports the platform and the other end of the pole-shaped structure is connected with the framework in a movable manner directly or indirectly. The pole-shaped structures are encircled and connected by the wire rope, chain, conveyor belt or cord independently or mutually, achieving the coordinated movements. The pole-shaped structures comprise right-angle pole-shaped structure, semi-circular pole-shaped structure, circular pole-shaped structure, elliptical pole-shaped structure, semi-elliptical pole-shaped structure, drop pole-shaped structure, semi-drop pole-shaped structure, inverted drop pole-shaped structure and inverted semi-drop pole-shaped structure as will be mentioned hereinafter, wherein the semi-elliptical pole-shaped structure and elliptical pole-shaped structure are shown in
Type 1, comprising right-angle pole-shaped structures 41 (briefed as right-angle pole 41), sprocket 42, a bearing box 43 and chains 44. One end of the pole-shaped structure is connected on the framework via the bearing box 43, the sprocket 42 is rigidly connected with one end of the pole-shaped structure 41, and the chain 44 is encircled on the sprocket 42. The assembly relationship of each component is shown in
Type 2, comprising non-rectangular pole-shaped structures 41 (in particular comprising semi-circular pole-shaped structure, circular pole-shaped structure, elliptical pole-shaped structure, semi-elliptical pole-shaped structure, drop-shaped pole-shaped structure, semi-drop pole-shaped structure, inverted drop pole-shaped structure, inverted semi-drop pole-shaped structure), steel wire ropes or chains 18, 19 and 20 (18, 19 and 20 can be selected as either steel wire ropes or chains, conveyer belts or cords, wherein, one end of the steel wire ropes or cords needs to be fixed in the grooves of the rim of pole-shaped structure, and the chains and conveyer belts can be selected to circle on the pole-shaped structure or one end to be fixed at the pole-shaped structure), bearing box 43, and a shaft 50. The shaft 50 passes through a shaft hole arranged on the middle part of the pole-shaped structure and is fixed on the framework by the bearing box 43; the steel wire ropes or chains 18, 19 and 20 are encircled in the groove of the rim of the pole-shaped structure. The assembly relationship of the members is shown in
Another advantage of selecting the Type 2 is that this type can reduce the mechanical strength requirements of pole-shaped structure, and reduce the sectional area of pole-shaped structure, and save material and cost. The bracing of the pole-shaped structure can be omitted. The disadvantage of Type 2 is that Type 2 is more complicated than Type 1. The figures here are simplified to briefly explain the principles, the parts of the driven and driving aided mechanism are shown only in
In Type 1 and Type 2, there is a combined pattern of pole-shaped structure. That is, a longer pole-shaped structure replaces two adjacent pole-shaped structures in the middle of the framework. This pole-shaped structure has one hole in the middle of the structure for installing, both ends of the pole-shaped structure hinge with two work platforms, as shown in
(5) The electrical control device, comprising: a digital circuit central control box 5 including a chip, a relay, a control switch, an adjustable resistor, a transformer, a travel switch and the like. The control switch can control the electric motor to rotate positively and reversely and to stop; the travel switch and the relay can control the work platform to stop on the determined position.
(6) The optional automatic obstacle monitoring device, comprising: wireless transmitting and receiving devices 6 mounted on the front and rear ends of the upper and lower work platforms, as shown in
When an obstacle is identified within the predetermined distance, such as 1.5 m, a signal is sent to stop the running equipment, thus preventing the work platform from colliding with the surrounding obstacles or persons during the running of the equipment.
(7) The wheels 7 can be assembled optionally on four corners of the base of the framework of the inventive equipment such that the inventive equipment has mobility. When equipped with a car chassis and power, the equipment can be moved to anywhere like a car, to optimize the reasonable allocation of equipment resources, as shown in
(8) The blocking device 9 can be assembled optionally to prevent objects parked on the work platform from sliding down. The blocking device can be also used separately on the ground of a parking lot as a parking bay lock. The blocking device, comprising an inwardly bent angle steel 92 which is provided with a hole 91 on the particular position of the side surface and has a generally inversed shaped section, a square tube 93, a spring button 95 with a keyhole 94 at its head and an insert tube at its rear, a shaft 97 with a wheel 96, a protective edge 98 having a rotary axis, and a lifting handle 99, as shown in
In use, the parking bay lock arranged horizontally is lifted up by the lifting handle, and the spring button 95 embedded in the inwardly bent angle steel automatically pops up and locks when encountering the hole 91, thus representing a triangular supporting state, as shown in
(9) The optional touch and stop device 10: a touch and stop device is mounted at each work platform on a side opposite to the automatic obstacle monitoring device, and is provided with two designs:
Design I: Two metal tubes 10-3 are mounted on two corners at one side of the work platform, as shown in
Design II: Elastic brackets 10-5 are mounted on two corners of one side of the work platform. The bracket has many forms, and the basic form is the door-shaped structure. Two legs of the bracket are equipped with elastic materials and thus are flexible; holes are provided in the middle of the elastic materials, and a rod-shaped structure 10-4 on the bracket passes through the middle hole of the elastic materials, and can contact another emergency stop circuit when the elastic materials are compressed, thus sending a signal to stop the equipment.
In the drawings, 11 represents a base, 12 represents a column, 121 represents a central column, 13 represents a crossbeam, 14 represents a fixed pulley, 15 represents a guide pulley, 16 represents an intermediate support structure, 2 generally represents a work platform which is subdivided into 21 representing an upper work platform and 22 representing a lower work platform, 23 represents a slope, 31 represents a gear motor, 32 represents a conveyer belt, 33 represents a wire drum, 34 generally represents a steel wire rope or chain having one end connected with the wire drum and the other end connected with the work platform or semi-circular or circular structure, wherein 34-1 represents a steel wire rope or chain related to one work platform and 34-2 represents a steel wire rope or chain related to the other work platform; 36 represents a rotating chassis, 41 represents the pole-shaped structures, wherein 41-1, 41-2, 41-3 and 41-4 represent optional semi-circular or circular pole-shaped structure, 42 represents a sprocket, 43 represents a bearing box, 44 represents a chain, 45 represents an anti-chain-disengaging device, 46 represents a pole-shaped structure bracing, 47 represents a semi-circular wheel, 48 represents a shaft hole of pin, 49 represents a pin, 50 represents a shaft, 5 represents a central control box, 6 represents a wireless obstacle monitoring device, 7 represents a wheel (optional), 8 represents a picket for fixing on the soft foundation (optional), 9 represents the whole blocking device, 91 represents a hole, 92 represents the inwardly crimped angle steel strut, 93 represents a square tube strut, 94 represents a keyhole, 95 represents a spring button, 96 represents a wheel, 97 represents a shaft, 98 represents a protective edge with a rotating axis, and 99 represents a lifting handle. 10-1 represents a pressed type emergency stop switch, 10-2 represents a pull for activating the emergency stop switch, 10-3 represents a metal tube, 10-4 represents a rod-shaped structure, and 10-5 represents an elastic bracket. 18, 19 and 20 represent steel wire ropes, chains or conveyer belts which are individually set to connect with the circular or semi-circular strut at the particular positions separately. 24 represents a crossbeam connected between the columns, and 25 represents a slope and cushion layer.
FIGS. 2-16-1, 2-16-2 and 2-16-3 illustrate some truss structure forms employed by the pole-shaped structures under a heavy load.
Hereinafter, the invention will be further described in combination with drawings and examples. The framework is selected as a four-column type framework with pulleys at its top, and the load is exampled as vehicle. Due to different types of the pole-shaped structures selected, the driving mode of the equipment is different, which is embodied in the different position for connection of the steel wire rope or chain 34. Now the description will be provided according to two types:
Type 1: when the right-angle pole-shaped structures shown in
Upon taking the vehicle from the work platform, the gear motor reverse run is controlled by switch, so that the drum and the wire rope are driven to reverse, and the wire rope 34-1 is relaxed, and the work platform 22 runs down, and the steel wire rope 34-2 hinged with the other work platform 21 is tightened to drive the other work platform 21 to run up actively. With the transmission by the sprockets and chains, the work platform 22 runs accordingly from a high level to the ground, thus completing the procedure for taking a vehicle.
The process of parking or taking a vehicle at the work platform 21 is opposite to the process of parking or taking a vehicle at work platform 22.
Type 2: when the semi-circular or circular pole-shaped structures is selected, the steel wire rope or chain or conveyer belt 34 is fixed on the particular position of the semi-circular or circular pole-shaped structure at the end of the groove of the rim, as shown in
Upon taking the vehicle form the work platform, the gear motor reverse run is controlled by switch, so that the drum and wire rope are driven to reverse, and the wire rope rounded in the groove of semi-circular pole-shaped structure is relaxed, and the work platform 22 runs down, and the wire rope 34-2 rounded in the groove of semi-circular pole-shaped structure is tightened to drive another work platform 21 to run up.
With the transmission by the steel wire rope or chain 18, 19 and 20, the work platform 22 runs accordingly from a higher level to the ground, thus completing the procedure for taking a vehicle.
The process of parking or taking a vehicle at the work platform 21 is opposite to that of the work platform 22.
When the two-central-column type framework is selected for the inventive equipment, the arrangement position of the driving mechanism and the driven and driving aided mechanism are different from those mentioned above, but the mode of movement is substantially the same. Specifically, the steel wire rope or chain 34-1 and 34-2 is connected with the circular pole-shaped structure 41-2 and 41-3 respectively, as shown in
When a longer pole-shaped structure is used to replace two adjacent pole-shaped structures between two work platforms, in case of the combined pattern of pole-shaped structure, one end of the steel wire rope 34-1 and 34-2 turns around a fixed pulley on the central column 121 respectively in opposite direction and runs downwards and then turns around a deflection pulley to be connected with the wire drum, and the other end thereof is fixed on the particular position of the work platform or the circular or semi-circular pole-shaped structure, as shown in
The working movement manner of the inventive equipment using the two-central-column type framework is in accordance with that of the inventive equipment using the four-column type framework.
To increase the lifting capacity, the method of synchronous lifting for multiple parallel platforms can be applied, as shown in
In addition, the wireless transmitting and receiving device is mounted respectively on the front and rear ends of the upper and lower work platforms during the movement of the upper and lower work platforms, as shown in
When the blocking device is used, the horizontally arranged parking lock is lifted up with the handle, and the spring button 95 embedded in the inwardly bent angle steel automatically pops up and locks when encountering the hole 91, as shown in
Wheel 7 can be optional on the four corners of the base of the framework of the inventive equipment, and the inventive equipment can be moved to anywhere when it is equipped with a car chassis, or can be towed by a truck to anywhere to optimize the allocation of equipment resources, as shown in
Finally, the touch and stop device 10 can ensure that the equipment will stop emergently when the side of the work platform with the touch and stop device touches the obstacle during operation.
The inventive equipment can load and unload different loads, and can replace some functions of load lift and crane under appropriate conditions. Further, a single or more equipment can be operated to rapidly build a bridge for vehicles and pedestrians, which can also provide an access with two upper and lower channels, and this is very useful in some emergencies or in case of natural disasters. Hereinafter, the application of the inventive equipment as a bridge composite structure will be specifically explained:
When operating one or more inventive equipment, the work platform of every equipment is stayed at or closed to the same horizontal position (a certain height difference between the work platforms is permitted) and all work platforms are connected from the front to the end, and slopes are arranged at both ends, so that a bridge can be built quickly. Of course, the inventive equipment can also be combined with the existing bridge structure to build a new bridge, as shown in FIGS. 13 and 13-1. It is not necessary for the two work platforms of each equipment or the platforms of multiple equipments to stay at an absolutely same horizontal level, and a certain height difference is permitted, as show in
Also, the work platform and column can be designed with different heights according to the changes of topography, as shown in
In a manner of synchronous lifting with multiple parallel work platforms, as shown in
In addition, according to the increase of actual load of the work platform, and referring to the arrangement of the stayed-cable bridge or suspension bridge in construction engineering, the number of the steel wire ropes or chains connected between the work platforms and the columns can be increased, and the number of the pole-shaped structures can be increased, and the number of crossbeams 24 connected between two columns can be increased when necessary, as shown in
The work platform can be made into a concave-shape or bending-surface platform according to the actual need. Such a work platform has special usage in some aspects, for example, it will be very helpful to bridging, as shown in
When dismantling the bridge, the equipment can be operated to automatically “shrink” into the upper and lower platforms automatically. Then it will be towed away by the construction party. If a certain section of the work platform fails or is damaged, a new equipment can replace such section of equipment, or the equipment can be controlled to lower the failure or damage section of platform for maintenance and replacement at low altitudes or near the level of ground or sea. Such a method reduces the difficulty in maintenance and saves maintenance time.
It should be noted that in order to meet the requirements for lifting in some circumstances, the platform can be simplified as a crossbeam shown in
If the requirement of horizontal stability for lifting a load is not high, which means swaying back and forth of the load is permitted, it is possible to use one or two pole-shaped structures in parallel as the lifting mechanism for lifting the load, and herein the work platform is simplified as the hook, lifting ring or special-purpose fixture and riggings, as shown in
The above describes the specific cases of the implementation of the patent. The patent is not limited to the above icon or description of the specific structure, but also covers all changes of the essence spirit and scope from the patent.
Claims
1. A multi-purpose load lifting work platform or/and composite bridge structure comprising a framework, at least one work platform, a drive mechanism, and an electrical control devices, characterized in that one end of a pole-shaped structure (41) is connected with the framework in a movable manner, and the other end of the pole-shaped structure (41) is connected with the work platform in a movable manner, the work platform can run with the pole-shaped structure together; the work platform can run in curve track relative to the framework by power, and can stop at any position in running track.
2. A multi-purpose load lifting work platform or/and composite bridge structure according to claim 1, characterized in that the forms of said pole-shaped structure (41) include: the semi-circular pole-shaped structure, the circular pole-shaped structure, the right-angle pole-shaped structure, the elliptical pole-shaped structure, the semi-elliptical pole-shaped structure, the drop pole-shaped structure, the semi-drop pole-shaped structure, the inverted drop pole-shaped structure, the inverted semi-drop pole-shaped structure.
3. A multi-purpose load lifting work platform or/and composite bridge structure according to claim 1, characterized in that the driven and driving aided mechanism is assembled, it solves the issues that the linkage mechanics can not work smoothly in low-speed movement and the possible reversal or failure; the driven and driving aided mechanism can converse and transfer the kinetic energy and potential energy between two work platforms;
- the driven and driving aided mechanism has two types, any one of two types of the driven and driving aided mechanisms can be used in the inventive equipment independently, and they can also replace each other or be combined together in the equipment with a manner of all structure or one part of the structure of each type, even can be used one part of the structure of each type in the equipment; in addition, two types can be used in the equipment, and can also be used in the other equipment requiring coordination-movement as one method and principle.
4. A multi-purpose load lifting work platform or/and composite bridge structure according to claim 1 or claim 2, characterized in that the driven and driving aided mechanism comprises the pole-shaped structure (41), a sprocket (42), a bearing box (43) and a chain (44), wherein, one end of pole-shaped structure is connected with framework through the bearing box (43), the sprocket (42) is connected with one end of pole-shaped structure (41), the chain (44) is encircled on the sprockets (42).
5. A multi-purpose load lifting work platform or/and composite bridge structure according to claim 1 or claim 2, characterized in that the driven and driving aided mechanism comprises the pole-shaped structure (41), the wire rope, chain, belt or rope encircled in the grooves of rim for pole-shaped structure, the bearing box (43), a shaft (50); the shaft (50) passes through the pole-shaped structure, and is fixed at the framework through the bearing box (43); the wire rope, chain, conveyor belt or cord is encircled in the groove of the rim for pole-shaped structure, wherein one end of steel wire rope and rope needs to be fixed in the grooves of the rim for pole-shaped structure.
6. A multi-purpose load lifting work platform or/and composite bridge structure according to claim 1, characterized in that the pole-shaped structures (41) are encircled and connected by the wire rope, chain, conveyor belt or cord independently or mutually, achieving the coordinated movements.
7. A multi-purpose load lifting work platform or/and composite bridge structure according to claim 1, characterized in that a obstacle monitoring device (6) can be assembled optionally at the front and rear side of work platform, which can avoid the colliding between the work platform and surrounding obstacles or people; the work platform is furnished with a blocking devices (9), which is equipped with a spring button (95) with a keyhole (94), a pulling handle (99), an axis (97) with a pulley (96), the blocking device is more convenient for using, the blocking device can also be used independently on the ground of car park as a parking lock; a touch and stop device (10) is fixed at one side of work platform, it can stop the equipment quickly while the work platform contacts surrounding obstacles or people; a wheel (7) can be installed the base of the framework of the equipment optionally to provide mobility and thus optimize the reasonable allocation of equipment resources.
8. A building-bridge method for using a multi-purpose load lifting work platform or/and composite bridge structure as a bridge structure, comprising: operating one or more equipment as characterized in claims 1 to 7 to allow the work platforms of each equipment to stay at the same horizontal position or close to the same horizontal position, and connecting all work platforms from the front to the end, so the bridge can be built quickly; building the bridge by combining the composite bridge structure with the known structures of bridge can achieve the same effect.
9. A multi-purpose load lifting work platform or/and composite bridge structure according to claim 8, characterized in that when dismantling the bridge, the equipment can be operated to “shrink” into the upper and lower platforms automatically, then it will be towed away by the construction party; if a certain section of work platform is failed or damaged, a new equipment can replace such section of equipment, or the equipment can be controlled to lower the failure or damage section of platform for maintenance and replacement at low altitudes or near the level of ground or sea.
10. A multi-purpose load lifting work platform or/and composite bridge structure according to claim 8, characterized in that when the composite bridge structure is used to build a bridge, a certain altitude difference between the platforms is allowed, the work platform can be made in the horizontal platform, and can also be made in concave-shape or bending-surface platform according to actual needs.
Type: Application
Filed: Mar 2, 2009
Publication Date: Feb 24, 2011
Applicant: Beijing Shengtianyl Parking Management Co., Ltd. (Beijing)
Inventor: Meng Sun (Beijing)
Application Number: 12/864,162
International Classification: E04G 1/00 (20060101); E01D 21/00 (20060101); E04G 1/24 (20060101);