Forklift auxiliary lifting device

Abstract

This utility model discloses a forklift auxiliary lifting device, belonging to the field of industrial equipment technology. It includes: a forklift equipped with liftable forks, a pallet seat, a workbench, and a climbing truss. The pallet seat includes a base, a tube for engaging with the forks, and an anti-shake unit. The tube is fixedly connected to the base. The anti-shake unit includes clamps and sealing components at both ends of the tube. The fixed part of the clamp is connected to the tube, and the sealing component is connected to the movable part of the clamp. The clamp can drive the sealing component to seal the gap between the tube and the forks, preventing the base from shaking relative to the forks. The workbench is used to support workers performing elevated operations. The climbing truss connects the pallet seat and the workbench. This utility model enables the overall lifting and lowering of the workbench using a forklift.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment technology, and in particular to a forklift auxiliary lifting device. Background Technology

[0002] Existing factory buildings generally use light steel structures as the frame, with color steel plates laid on the outside of the frame as the main body of the factory building.

[0003] However, during the use of the factory building, it is sometimes necessary to maintain and care for the roof steel plates and the exterior windows to ensure the normal use of the factory building.

[0004] However, the relevant staff lack the necessary climbing equipment, making operation extremely difficult. Ordinary lifting equipment is ill-suited to the height of the factory buildings, making it inconvenient to use. Custom-made lifting equipment is costly and used infrequently, resulting in a waste of resources. Utility Model Content

[0005] In view of this, it is necessary to provide a forklift auxiliary lifting device to solve the problems of high cost and unsuitability for factory maintenance of existing lifting equipment.

[0006] This utility model provides a forklift auxiliary lifting device, including a forklift equipped with lifting forks, and further comprising:

[0007] The pallet seat includes a base, a tube for cooperating with the forks, and an anti-shake unit. The tube is fixedly connected to the base. The anti-shake unit includes clamps and sealing members disposed at both ends of the tube. The fixed part of the clamp is connected to the tube, and the sealing member is connected to the movable part of the clamp. The clamp can drive the sealing member to seal the gap between the tube and the forks, thereby preventing the base from shaking relative to the forks.

[0008] A workbench is used to support workers performing tasks at height.

[0009] A climbing truss is used to connect the tray base and the workbench.

[0010] Furthermore, the tube body has connecting portions at both ends, which are arranged vertically. The fixed portion is detachably connected to the connecting portion, and the movable portion is rotatable relative to the fixed portion. The movable portion has a parallel position and a perpendicular position relative to the connecting portion. In the parallel position, the movable portion is arranged parallel to the connecting portion. In the perpendicular position, the movable portion is arranged perpendicular to the connecting portion. The movable portion drives the sealing member to be inserted into the tube body to seal the vertical gap between the fork and the inner wall of the tube body.

[0011] Furthermore, the width of the sealing element is the same as the width of the tube body, and the thickness of the sealing element is the same as the vertical gap between the fork and the inner wall of the tube body.

[0012] Furthermore, the sealing element is a rubber sealing element, a polymer material sealing element, or a metal sealing element.

[0013] Furthermore, the two clamps are positioned opposite one end of the tube body, and the two ends of the sealing member are detachably connected to the movable part of the clamps.

[0014] Furthermore, the tube body is a square tube, the inner cross-section of the square tube is square, and the width of the inner cavity of the square tube is the same as the width of the fork.

[0015] Furthermore, the workbench includes a fixed frame, a movable frame, and a moving unit. The fixed frame is connected to the top of the truss, the movable frame is slidably engaged with the fixed frame, and the moving unit is disposed between the fixed frame and the movable frame. The moving unit can drive the movable frame to move horizontally relative to the fixed frame.

[0016] Furthermore, the moving unit includes a gear and rack transmission mechanism and a rotating handwheel. The gear and rack transmission mechanism is disposed between the moving platform and the fixed platform, and the rotating handwheel is rotatably connected to the gear and rack transmission mechanism.

[0017] Furthermore, a protective staircase is provided on one side of the truss.

[0018] Furthermore, a counterweight is provided on the seat.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] (1) A forklift auxiliary lifting device of the present invention is provided with a pallet seat, a workbench and a climbing truss. The workbench is used to support workers to climb and work. The climbing truss is used to connect the pallet seat and the workbench, raising the distance between the workbench and the ground, making it convenient to maintain and repair facilities located at high places in the factory. The working height of the workbench can be adjusted by using the lifting function of the forklift forks. By effectively utilizing the existing forklift resources in the factory, the climbing function can be realized through the additional device, avoiding the high cost of purchasing special equipment.

[0021] (2) A forklift auxiliary lifting device of the present invention is provided with a pallet seat. The pallet seat includes a base body, a tube body and an anti-shake unit. The tube body is fixedly connected to the base body and can be connected with the forks so that the forklift can drive the pallet seat to move and lift. The anti-shake unit includes clamps and sealing parts disposed at both ends of the tube body. The fixed part of the clamps is connected to the tube body and the sealing parts are connected to the movable part of the clamps. The clamps can drive the movable part to rotate relative to the tube body, thereby driving the sealing parts to be inserted into the gap between the tube body and the forks, sealing the gap, preventing the forks from shaking in the tube body, avoiding interference to workers working on the workbench, and ensuring the safety of workers working at heights. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the overall structure of this utility model. Figure 3 ;

[0026] Figure 4 This is a schematic diagram of the tray base in this utility model. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the tray base in this utility model. Figure 2 ;

[0028] Figure 6 This is a schematic diagram of the anti-shake unit in this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the workbench in this utility model. Figure 1 ;

[0030] Figure 8 This is a schematic diagram of the structure of the workbench in this utility model. Figure 2 .

[0031] In the diagram, 100 represents a forklift; 110 represents forks.

[0032] 200, tray base; 210, base body; 220, tube body; 221, connecting part; 230, anti-shake unit; 231, clamp; 231a, fixing part; 231b, moving part; 232, sealing part;

[0033] 300. Workbench; 310. Fixed frame; 320. Movable frame; 330. Moving unit; 331. Gear and rack transmission mechanism; 332. Rotating handwheel;

[0034] 400. Elevation truss; 410. Safety staircase. Detailed Implementation

[0035] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0036] This embodiment of a forklift auxiliary lifting device relates to the field of industrial equipment technology. It utilizes a fixed-structure lifting truss 400 as its structural foundation. A pallet seat 200 is located at the bottom of the lifting truss 400, allowing for overall lifting and lowering with the aid of a forklift 100. A workbench 300 for personnel to work on is located at the top of the lifting truss 400.

[0037] Please see Figures 1 to 6 This embodiment of a forklift auxiliary lifting device includes a forklift 100, on which are raised forks 110. It also includes a pallet seat 200, a workbench 300, and a climbing truss 400. The workbench 300 is used to support workers performing work at height, and the climbing truss 400 connects the pallet seat 200 and the workbench 300, raising the workbench 300 above the ground for easier maintenance and repair of facilities located high in the factory.

[0038] The pallet seat 200 includes a base 210, a tube 220, and an anti-shake unit 230. The tube 220 is fixedly connected to the base 210 and can be connected to the forks 110, allowing the forklift 100 to drive the pallet seat 200 to move and lift. The anti-shake unit 230 includes clamps 231 and sealing members 232 disposed at both ends of the tube 220. The fixed part 231a of the clamps 231 is connected to the tube 220, and the sealing member 232 is connected to the movable part 231b of the clamps 231. The clamps 231 can drive the movable part 231b to rotate relative to the tube 220, thereby causing the sealing member 232 to be inserted into the gap between the tube 220 and the forks 110, sealing the gap and preventing the forks 110 from shaking in the tube 220, thus preventing interference with workers working on the workbench 300 and ensuring the safety of workers working at heights.

[0039] During use, after the forks 110 are inserted into the tube 220, the operating clamp 231 drives the movable part 231b to rotate, causing the sealing member 232 to be inserted into the gap between the forks 110 and the inner wall of the tube 220. The sealing member 232 fills the gap, creating frictional damping and suppressing the horizontal swaying of the forks 110 during lifting. The base 210 forms a stable connection with the forks 110 through the tube 220, and the climbing truss 400 extends upwards from the base 210 to the workbench 300, forming a vertical support system. Workers climb to the workbench 300 and use the lifting function of the forks 110 to adjust the working height.

[0040] It should be noted that a counterweight is provided on the base 210. The counterweight is a balancing component used to increase the overall mass of the pallet seat 200. It can be implemented using metal blocks, concrete blocks, or composite material blocks. By increasing the weight at the bottom of the base 210, it balances the torque shift generated when the workbench 300 moves. After the forklift forks 110 are inserted into the tube 220, the counterweight is fixed to the bottom of the base 210. When the workbench 300 carries workers and tools and moves horizontally, the counter-torque generated by the counterweight can counteract the center of gravity shift caused by the extension of the moving platform 320.

[0041] This application effectively utilizes existing forklifts 100 in the factory, achieving aerial work functionality through an additional device, thus avoiding the high cost of purchasing specialized equipment. The anti-shake unit 230 design solves the problem of horizontal vibration during the lifting and lowering of the forks 110, ensuring safety during high-altitude operations. The modular structure allows the device to be quickly installed on forklifts 100 of different specifications, achieving multi-purpose functionality and improving equipment utilization.

[0042] In some embodiments, please refer to Figures 1 to 6 The tube body 220 has connecting parts 221 at both ends. The connecting parts 221 are arranged vertically and are integrally connected to the end of the tube body 220. The fixing part 231a is detachably connected to the connecting part 221. The position of the fixing part 231a of the clamp 231 is positioned so that the specific positions of the parallel and vertical positions can be determined, so that the sealing part 232 can cooperate with the tube body 220.

[0043] The movable part 231b is rotatable relative to the fixed part 231a. The movable part 231b has a parallel position and a perpendicular position relative to the connecting part 221. In the parallel position, the movable part 231b is arranged parallel to the connecting part 221, and the movable part 231b and the sealing member 232 cannot interfere with the fork 110, facilitating the insertion of the fork 110. In the perpendicular position, the movable part 231b is arranged perpendicular to the connecting part 221, and the movable part 231b drives the sealing member 232 to be inserted into the tube body 220, sealing the vertical gap between the fork 110 and the inner wall of the tube body 220, preventing the fork 110 from shaking within the tube body 220, and avoiding interference with the worker's work on the workbench 300.

[0044] In practical implementation, the connecting part 221 refers to the vertical installation structure set at both ends of the pipe body 220, which can be implemented by welding, and is used to support the fixing part 231a of the clamp 231. The fixing part 231a is connected to the clamp using bolts or a snap-fit ​​structure, which facilitates maintenance and replacement. The parallel position means that the moving part 231b and the connecting part 221 are in the same plane, at which time the sealing member 232 is in the non-working position; the vertical position means that the moving part 231b and the connecting part 221 form a right angle, at which time the sealing member 232 is inserted into the gap of the inner wall of the pipe body 220.

[0045] When the forks 110 are inserted into the tube body 220, the movable part 231b of the clamp 231 is rotated to a vertical position, driving the sealing member 232 to insert into the vertical gap between the forks 110 and the inner wall of the tube body 220, eliminating lateral displacement caused by the lifting and lowering of the forks 110. The connecting part 221 is vertically positioned to ensure that the fixing part 231a of the clamp 231 is aligned with the axis of the tube body 220, avoiding installation deviations. The movable part 231b remains retracted in the parallel position, reducing space occupation; in the vertical position, the sealing member 232 fills the gap, forming a rigid constraint. The detachable design of the connecting part 221 and the fixing part 231a allows for quick disassembly and assembly of the clamp 231, for example, when the forks 110 are replaced or maintained, the bolts of the fixing part 231a can be separated to adjust the position of the clamp 231.

[0046] In a traditional forklift 100, the forklift 100 only needs to load and unload goods. The goods themselves have a limited height and a low center of gravity, and the weight of the goods is sufficient to ensure relative stability between the goods and the forks 110. In this solution, the height of the lifting gantry 400 generally exceeds five meters, resulting in a higher center of gravity and poorer stability for the entire lifting device. Furthermore, workers need to move on the pallet seat 200 during normal operation, which further increases the likelihood of overall device vibration.

[0047] This solution, through the cooperation of the rotatable movable part 231b and the detachable connecting part 221, can adapt to the clearance dimensions of different specifications of forks 110, while avoiding the wear problem of the sealing part 232 due to long-term use. Through the above technical solution, this application effectively prevents lateral vibration caused by clearance during the lifting and lowering of the forks 110, improving the stability of the worktable 300. The detachable connecting structure facilitates maintenance personnel to inspect or replace the clamp 231, and the design of the rotatable movable part 231b allows the sealing part 232 to quickly switch working states, avoiding component wear caused by frequent disassembly and assembly in traditional fixed sealing structures. The vertically arranged connecting part 221 forms a stable support with the tube body 220, ensuring that the clamp 231 can withstand the lateral load generated by the lifting and lowering of the forks 110 when in the vertical position.

[0048] In some embodiments, the width of the sealing member 232 is the same as the width of the tube body 220, and the thickness of the sealing member 232 is the same as the vertical gap between the fork 110 and the inner wall of the tube body 220. The dual dimensional matching of the sealing member 232 in both the width and thickness directions enables it to stably restrain the lateral displacement and longitudinal sway of the fork 110, thereby ensuring the stability of the workbench 300 when operating at height.

[0049] In practical implementation, the sealing component 232 is a barrier component used to fill the gap between the tube body 220 and the fork 110. It can be molded from rubber, polymer materials, or metal materials, and physical sealing is achieved by matching the gap dimensions. "Consistent width" means that the lateral dimension of the sealing component 232 is equal to the lateral dimension of the inner cavity of the tube body 220. This can be achieved by custom processing after measuring the spacing between the inner walls of the tube body 220, ensuring that the sealing component 232 completely covers the space in the width direction inside the tube body 220. "Consistent thickness" means that the longitudinal dimension of the sealing component 232 is equal to the gap size between the side wall of the fork 110 and the inner wall of the tube body 220. This can be achieved by calculating the single-sided gap value after the fork 110 is inserted into the tube body 220; for example, if the gap is 5 mm, the thickness of the sealing component 232 is set to 5 mm.

[0050] When the fork 110 is inserted into the tube 220, a vertical gap is formed between the two sides of the fork 110 and the inner wall of the tube 220. The sealing member 232, driven by the clamp 231, is inserted laterally into the inner cavity of the tube 220, its width completely covering the lateral space of the inner cavity, and its thickness precisely filling the vertical gap between the fork 110 and the tube 220. In this state, the sealing member 232 forms surface contact with the side walls of the fork 110 and the inner wall of the tube 220, suppressing the vertical displacement of the fork 110 through a combination of friction and physical restraint.

[0051] In some embodiments, please refer to Figure 6Two clamps 231 are positioned opposite one end of the pipe body 220. The two ends of the sealing element 232 are detachably connected to the movable parts 231b of the clamps 231. By increasing the number of clamps 231, the synchronous drive of the two clamps 231 ensures uniform force on the sealing element 232 and high synchronicity of movement on both sides. This ensures that the sealing element 232 penetrates into the pipe body 220 synchronously from both sides, preventing interference between the sealing element 232 and the inner wall of the pipe body 220 due to tilting. The detachable connection of the two ends of the sealing element 232 to the movable parts 231b of the clamps 231 allows for maintenance and replacement of worn sealing elements 232 when necessary.

[0052] In practical implementation, the clamp 231 is a device that generates clamping force through mechanical action. Specifically, it can be implemented using a mechanical linkage clamp, with its fixed part 231a connected to the pipe body 220 to form a supporting base. The movable part 231b refers to the component in the clamp 231 that can generate displacement. Specifically, it can achieve rotational movement through a hinged structure, which is used to drive the sealing component 232 to perform gap sealing action.

[0053] When the fork 110 is inserted into the tube body 220, the two clamps 231 located on the same side of the tube body 220 act simultaneously, and their movable parts 231b drive the sealing member 232 to move into the tube body 220. Since the two ends of the sealing member 232 are connected to the movable parts 231b of the two clamps 231 respectively, a symmetrical force-applying structure is formed, which can evenly fill the gaps on both sides between the fork 110 and the inner wall of the tube body 220. During maintenance, the sealing member 232 can be removed as a whole by disconnecting the connector, without disassembling the main structure of the clamps 231.

[0054] In some embodiments, please refer to Figure 5 The tube body 220 is a square tube with a square inner cavity cross section. The width of the inner cavity of the square tube is the same as the width of the fork 110. The size matching design of the square tube and the fork 110 simplifies the assembly process, and a tight fit can be achieved without additional adjustments, reducing maintenance needs caused by gaps.

[0055] In a specific embodiment, the square tube has a square cross-section and can be made of steel or aluminum alloy to form a stable sliding fit with the forks 110. The internal cavity of the square tube has a rectangular or square cross-sectional shape and can be formed by cold rolling or welding to match the flat structure of the forks 110. The horizontal dimension of the internal cavity of the square tube is equal to the lateral dimension of the forks 110, and the tolerance range can be controlled by machining to eliminate the lateral gap between the forks 110 and the tube body 220.

[0056] When the forks 110 are inserted into the square tube, their two sides contact the inner wall of the square tube, forming surface contact support. Since the width of the inner cavity is the same as the width of the forks 110, the forks 110 cannot undergo lateral displacement inside the square tube, thus avoiding horizontal swaying caused by gaps. At the same time, the edge structure of the square tube can restrain the torsional tendency of the forks 110, further limiting the deflection of the forks 110 during lifting and lowering.

[0057] In some embodiments, please refer to Figure 7 and Figure 8 The workbench 300 includes a fixed frame 310, a movable frame 320, and a moving unit 330. The fixed frame 310 is connected to the top of the truss, and the movable frame 320 is slidably engaged with the fixed frame 310, allowing the movable frame 320 to move horizontally relative to the fixed frame 310 along a fixed trajectory. The moving unit 330 is positioned between the fixed frame 310 and the movable frame 320, enabling the movable frame 320 to move horizontally relative to the fixed frame 310 as needed, flexibly adjusting its position. When workers are maintaining the color steel panels on the roof of the factory or the exterior windows, they can cover different work areas without repeatedly raising and lowering the forklift 100, significantly improving maintenance efficiency and reducing the cost of custom-made large lifting equipment.

[0058] In practical implementation, the fixed platform 310 is a support structure rigidly connected to the top of the truss, which can be implemented using a welded or bolted steel frame, providing stable foundation support for the movable platform 320. The movable unit 330 includes a gear and rack transmission mechanism 331 and a rotating handwheel 332. The gear and rack transmission mechanism 331 is located between the movable platform 320 and the fixed platform 310, and the rotating handwheel 332 is rotatably connected to the gear and rack transmission mechanism 331. The gear and rack transmission mechanism 331 is a mechanical device that transmits power through the meshing of gears and racks, which can be implemented using a standard module gear and a spur rack. Its function is to convert rotational motion into linear motion to drive the movable platform 320 to move horizontally. The rotating handwheel 332 is a wheel-shaped component operated by manual rotation, which can be implemented using a metal hub with anti-slip texture and a rotating shaft structure. Its function is to provide driving force input to the gear and rack transmission mechanism 331, allowing the operator to manually adjust and control the displacement of the movable platform 320.

[0059] When the horizontal position of the workbench 300 needs to be adjusted, the operator rotates the handwheel 332, which drives the gear in the rack and pinion transmission mechanism 331 to rotate. The gear meshes with the rack fixed on the fixed frame 310, converting the rotational motion into linear motion of the moving frame 320 along the extension direction of the rack. By controlling the direction and number of rotations of the handwheel, the moving frame 320 can be precisely moved to the target position, allowing the worker to work in different horizontal areas.

[0060] In some embodiments, please refer to Figure 2 and Figure 3 A safety staircase 410 is installed on one side of the climbing truss 400. The safety staircase 410 can help workers climb onto the work platform 300 located at the top of the climbing truss 400, thus protecting the safety of the workers.

[0061] In practical implementation, the climbing truss 400 serves as a supporting structure connecting the pallet seat 200 and the workbench 300. It can be implemented using a metal frame or welded steel structure to provide a stable vertical access. The safety staircase 410 refers to the stepped structure fixed to the side of the climbing truss 400. It can be implemented using anti-slip steel plates or stepped components with handrails to provide workers with a safe access for working at height.

[0062] By integrating a fixed protective staircase 410 on the side of the climbing truss 400, the instability problem of temporary equipment is avoided, while providing workers with a standardized and reusable safety passage. Through the above technical solution, this application solves the problem of insufficient safety when workers are climbing equipment at heights, reduces the risk of falls, improves the safety and convenience of factory maintenance operations, and avoids the high cost of custom-made special lifting equipment.

[0063] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A forklift auxiliary lifting device, comprising a forklift, wherein the forklift is equipped with liftable forks, characterized in that, Also includes: The pallet seat includes a base, a tube for cooperating with the forks, and an anti-shake unit. The tube is fixedly connected to the base. The anti-shake unit includes clamps and sealing members disposed at both ends of the tube. The fixed part of the clamp is connected to the tube, and the sealing member is connected to the movable part of the clamp. The clamp can drive the sealing member to seal the gap between the tube and the forks, thereby preventing the base from shaking relative to the forks. A workbench is used to support workers performing tasks at height. A climbing truss is used to connect the tray base and the workbench.

2. The forklift auxiliary lifting device according to claim 1, characterized in that, The tube body has connecting portions at both ends, which are vertically arranged. The fixed portion is detachably connected to the connecting portion, and the movable portion is rotatable relative to the fixed portion. The movable portion has a parallel position and a perpendicular position relative to the connecting portion. In the parallel position, the movable portion is parallel to the connecting portion. In the perpendicular position, the movable portion is perpendicular to the connecting portion. The movable portion drives the sealing member to be inserted into the tube body to seal the vertical gap between the fork and the inner wall of the tube body.

3. The forklift auxiliary lifting device according to claim 2, characterized in that, The width of the sealing element is the same as the width of the tube body, and the thickness of the sealing element is the same as the vertical gap between the fork and the inner wall of the tube body.

4. A forklift auxiliary lifting device according to claim 3, characterized in that, The sealing component is a rubber sealing component, a polymer material sealing component, or a metal sealing component.

5. A forklift auxiliary lifting device according to claim 4, characterized in that, The two clamps are positioned opposite one end of the tube body, and the two ends of the sealing member are detachably connected to the movable part of the clamps.

6. A forklift auxiliary lifting device according to claim 1, characterized in that, The tube body is a square tube, the inner cross-section of the square tube is square, and the width of the inner cavity of the square tube is the same as the width of the fork.

7. A forklift auxiliary lifting device according to claim 1, characterized in that, The workbench includes a fixed frame, a movable frame, and a moving unit. The fixed frame is connected to the top of the truss, the movable frame is slidably engaged with the fixed frame, and the moving unit is disposed between the fixed frame and the movable frame. The moving unit can drive the movable frame to move horizontally relative to the fixed frame.

8. A forklift auxiliary lifting device according to claim 7, characterized in that, The moving unit includes a gear and rack transmission mechanism and a rotating handwheel. The gear and rack transmission mechanism is disposed between the moving platform and the fixed platform, and the rotating handwheel is rotatably connected to the gear and rack transmission mechanism.

9. A forklift auxiliary lifting device according to claim 1, characterized in that, A protective staircase is provided on one side of the truss.

10. A forklift auxiliary lifting device according to claim 1, characterized in that, The base is equipped with a counterweight.

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