Platform car

Abstract

The utility model relates to a platform car which comprises a car body, a bearing plate, a clamping piece and a pushing device, the clamping piece and the pushing device are arranged on the bearing plate, the clamping piece comprises two clamping parts oppositely arranged on the two sides of the bearing plate, the two clamping parts cooperatively move towards each other or cooperatively move away from each other, and the pushing device is arranged between the two clamping parts. The pushing device moves between the two ends of the bearing plate. The carrying efficiency is improved, the labor cost is reduced, the battery pack is stably clamped through the clamping pieces, the battery pack can be stabilized in the middle of the bearing plate after being clamped, and the stability of batteries in the lifting and transporting process is guaranteed. By adopting the clamping piece, the battery packs with different sizes can be clamped and matched.

Description

Technical Field

[0001] The present application relates to the technical field of platform trucks, and more particularly to a platform truck. Background Art

[0002] In recent years, the energy storage industry has developed vigorously, putting forward higher requirements for the production, testing, installation, transportation and after-sales work of factories, and the improvement of efficiency has become an urgent need. At present, the production and installation of modules and battery packs can be completed through automated production lines, but the installation of battery packs into cabinets or containers still relies on manual operations. As the size of battery packs continues to increase, it is difficult to complete related work by relying on manpower, and tools are needed for operation.

[0003] However, most factories only use simple forklifts for moving or lifting. The size of the support part of the forklift is fixed, and it is not easy to move and grab the large-sized battery pack while maintaining balance. Once the center of gravity shifts, the battery pack is likely to fall and be damaged.

[0004] Existing platform trucks usually only apply to single products and cannot meet the installation requirements of battery packs of different sizes and types.

[0005] The above deficiencies lead to low installation efficiency of battery packs, affecting the overall development of the energy storage industry. Therefore, there is an urgent need for a new type of platform truck that can solve the installation and maintenance problems of large-sized battery packs and battery packs of different sizes, and improve efficiency and safety. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present application is to provide a platform truck, which has the advantage of adapting to battery packs of different sizes.

[0007] The above object of the present application is achieved through the following technical solutions:

[0008] A platform truck includes a vehicle body, a bearing plate, a clamping member and a pushing device provided on the bearing plate. The clamping member includes two clamping parts oppositely arranged on both sides of the bearing plate. The two clamping parts move towards each other or away from each other in cooperation, and the pushing device is arranged between the two clamping parts and moves between the two ends of the bearing plate.

[0009] By adopting the above technical solution, the clamping mechanism can stably clamp the battery pack, avoiding the risk of accidental dropping during handling, and the design of the clamping parts moving in cooperation can be adjusted according to the size of the battery pack to adapt to battery packs of different sizes.

[0010] The present application is further provided that one end of the bearing plate is provided with an end plate, and a receiving groove is opened on the end plate, and the pushing device can move into the receiving groove.

[0011] With the above technical solution, when the platform truck does not require a pushing device, the pushing device can be moved into the accommodating groove, saving space and preventing the pushing device from colliding with other components.

[0012] This application is further configured such that a moving track is provided on the bearing plate, and the upper ends of both the clamping member and the pushing device are higher than the upper end of the moving track.

[0013] This application is further configured such that the moving track includes a plurality of rollers, and the plurality of rollers are arranged in sequence between the two ends of the bearing plate.

[0014] With the above technical solution, the moving resistance is reduced. Using rollers as the moving track can reduce the moving resistance of the platform truck, facilitating the operator to move the platform truck.

[0015] This application is further configured such that sliding grooves are formed between the two sides of the bearing plate, the moving track is perpendicular to the sliding grooves, the number of the moving tracks is not less than two, and the moving tracks are slidably arranged in the sliding grooves.

[0016] With the above technical solution, the flexibility of the platform truck is improved. Multiple moving tracks can enable the platform truck to move laterally, improving the flexibility of the platform truck and facilitating the operator to operate in a narrow space.

[0017] This application is further configured such that the platform truck further includes a lifting device, the lifting device is connected to the vehicle body and the bearing plate, and the lifting device drives the bearing plate to move along the height direction of the vehicle body.

[0018] With the above technical solution, height adjustment is achieved. The lifting device can adjust the height of the platform truck, facilitating the operator to install the battery pack at positions with different heights.

[0019] This application is further configured such that wheels are provided at the bottom of the vehicle body.

[0020] With the above technical solution, it is convenient to move the platform truck. The wheels can make the platform truck easier to move.

[0021] This application is further configured such that a back plate is provided at one end of the vehicle body, and a pulling ring is provided on the back plate.

[0022] With the above technical solution, the pulling ring can facilitate the operator to push the platform truck and improve the operation efficiency.

[0023] The present application is further configured such that the clamping member further includes two screw-nut mechanisms and an engagement mechanism. The nuts of the two screw-nut mechanisms are slidably mounted on the carrier plate. The engagement mechanism connects the screws of the two screw-nut mechanisms and transmits opposite rotational forces between the screws of the two screw-nut mechanisms. The two clamping portions are respectively provided on the nuts of the two screw-nut mechanisms.

[0024] With the above technical solution, the screw-nut mechanism can accurately control the moving distance of the clamping portion, ensuring the stability and safety of clamping the battery pack. At the same time, the engagement mechanism enables the two clamping portions to move synchronously, ensuring uniform distribution of the clamping force and preventing damage to the battery pack due to uneven clamping force.

[0025] The present application is further configured such that the clamping member further includes a handwheel, and the handwheel is connected to the screw of one of the screw-nut mechanisms.

[0026] With the above technical solution, convenient operation can be achieved. The handwheel can facilitate the operator to adjust the clamping force of the clamping portion, improving the operation efficiency.

[0027] In summary, the beneficial technical effects of the present application are as follows:

[0028] 1. The present application improves the handling efficiency and reduces the labor cost. The clamping member is used to firmly clamp the battery pack, and the battery pack can also be stabilized in the middle of the carrier plate after being clamped, ensuring the stability of the battery during lifting and transportation.

[0029] 2. The present application can use the clamping member to clamp and adapt to battery packs of different sizes.

[0030] 3. The clamping mechanism of the present application can stably clamp the battery pack, preventing the battery pack from falling or tilting during handling, and effectively reducing the accident risk.

[0031] 4. The present application adopts a pushing device, which can easily move the battery pack to the designated position, reduce manual operation, and lower the handling cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the right view of the platform truck.

[0033] Figure 2 is the top view of the platform truck.

[0034] Figure 3 is the front view of the platform truck.

[0035] Figure 4 is the bottom view of the platform truck.

[0036] Description of the attached reference numerals: 1. Vehicle body; 2. Bearing plate; 21. End plate; 211. Accommodating groove; 22. Moving track; 221. Roller; 23. Chute; 3. Clamping member; 31. Clamping portion; 32. Lead screw nut mechanism; 33. Handwheel; 4. Pushing device; 5. Lifting device; 6. Wheel; 7. Back plate; 8. Pulling ring. Detailed implementation manners

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] As Figures 1 - 2 shown, a platform vehicle includes a vehicle body 1, a bearing plate 2, and a clamping member 3 and a pushing device 4 provided on the bearing plate 2. The clamping member 3 includes two clamping portions 31 oppositely arranged on both sides of the bearing plate 2. The two clamping portions 31 move towards each other or away from each other in cooperation. The pushing device 4 is provided between the two clamping portions 31, and the pushing device 4 moves between the two ends of the bearing plate 2.

[0039] Specifically, the two clamping portions 31 moving towards each other or away from each other in cooperation means that: the movement modes of the two clamping portions 31 are to simultaneously approach the middle of the bearing plate 2 by the same distance to clamp the battery pack, or to simultaneously move away from the middle of the bearing plate 2 by the same distance to loosen the battery pack.

[0040] Preferably, gear transmission is adopted to achieve the cooperative movement. Through the connection of gears, when one of the two clamping portions 31 moves, the other also moves synchronously. The gear transmission structure is simple, the cost is low, it is easy to achieve high-precision synchronous movement, and the maintenance is convenient.

[0041] Preferably, chain transmission is adopted to achieve the cooperative movement. Through the connection of the chain, when one of the two clamping portions 31 moves, the other also moves synchronously. The chain transmission can achieve a large transmission ratio, has a compact structure, strong load-bearing capacity, and can achieve a long-distance transmission.

[0042] More preferably, lead screw transmission is adopted to achieve the cooperative movement. Through the connection of the lead screw, when one of the two clamping portions 31 moves, the other also moves synchronously. The lead screw transmission can achieve precise linear movement, can bear a large load, and has high precision.

[0043] In addition, it can also be realized by using a position sensor in combination with a hydraulic or pneumatic system, that is, the movement of the two clamping portions 31 is driven by a hydraulic or pneumatic method, the position of one clamping portion 31 is detected by the position sensor, and the other clamping portion 31 is driven to move synchronously therewith.

[0044] Further, the clamping member 3 further includes two screw nut mechanisms 32 and a meshing mechanism. The two screw nut mechanisms 32 are rotatably arranged on the bearing plate 2. The nuts of the two screw nut mechanisms 32 are slidably mounted on the bearing plate 2. The movement of the nut is controlled by the rotation of the screw. The meshing mechanism connects the screws of the two screw nut mechanisms 32. The meshing mechanism transmits opposite rotational forces between the screws of the two screw nut mechanisms 32. The two clamping portions 31 are respectively arranged on the nuts of the two screw nut mechanisms 32. Thus, after the screw rotates, it drives the nut to move, and then drives the clamping portion 31 to move, realizing the clamping or relaxation of the battery pack.

[0045] In a preferred embodiment, the meshing mechanism adopts a gear drive using a pair of gears with the same size and equal number of teeth, which are respectively connected to the two screws. When one gear rotates, the other gear will rotate in the opposite direction. Its structure is simple and the transmission efficiency is high.

[0046] In a preferred embodiment, the meshing mechanism adopts a worm and worm gear drive using a worm and a worm gear. The worm is connected to one screw, and the worm gear is connected to the other screw. The rotation of the worm will drive the worm gear to rotate in the opposite direction. And the worm and worm gear drive has a self-locking function, which can prevent the screw from rotating in the reverse direction, with higher safety. It can achieve a larger transmission ratio and can realize the self-locking function.

[0047] In another preferred embodiment, the meshing mechanism adopts a planetary gear drive using a planetary gear set. The central gear is connected to one screw, and the planetary gear is connected to the other screw. When the central gear rotates, the planetary gear will rotate around the central gear and drive the other screw to rotate in the opposite direction. Its structure is compact, the transmission ratio is adjustable, and it can achieve a high transmission accuracy.

[0048] Further, the clamping member 3 further includes a handwheel 33, and the handwheel 33 is connected to the screw of one screw nut mechanism 32. To facilitate the user's control of the clamping member 3.

[0049] As Figures 3 - 4 shown, an end plate 21 is provided at one end of the bearing plate 2, and a receiving groove 211 is formed on the end plate 21. The pushing device 4 can move into the receiving groove 211.

[0050] When not in use, the pushing device 4 is received in the receiving groove 211, which is simple and safe. When in use, the clamping portion 31 abuts against both sides of the battery pack. Preferably, the pushing device 4 includes a baffle. The end plate 21 and the baffle abut against both ends of the battery pack. The battery pack is pushed by the baffle of the pushing device 4 to realize the clamping of both ends of the battery pack. When removing the battery pack, the baffle is removed to disassemble the battery pack.

[0051] More preferably, the end plate 21 and the pushing device 4 are located at the same end of the battery pack, and only when the battery is pushed out, the pushing device 4 moves to unload the battery.

[0052] Specifically, the pushing device 4 is driven by a cylinder or a hydraulic cylinder.

[0053] Further, a moving track 22 is provided on the bearing plate 2. The upper ends of the clamping members 3 and the upper end of the pushing device 4 are both higher than the upper end of the moving track 22. The moving track 22 includes a plurality of rollers 221. The plurality of rollers 221 are arranged in sequence between the two ends of the bearing plate 2. Each roller 221 rotates about its own axis. When the battery pack is placed on the rollers 221, the movement is converted into rolling when the battery pack is moved, which saves effort and reduces friction while protecting the moving track 22 and the battery pack.

[0054] Further, as Figure 2 shown, a chute 23 is formed between the two sides of the bearing plate 2. The moving track 22 is perpendicular to the chute 23. The number of the moving tracks 22 is not less than two. The moving track 22 is slidably arranged in the chute 23, and can better receive according to the size of the battery pack. The slidable moving track 22 further adapts to battery packs of different sizes.

[0055] Further, the platform truck further includes: a lifting device 5. The lifting device 5 is connected to the vehicle body 1 and the bearing plate 2, and the lifting device 5 drives the bearing plate 2 to move in the height direction of the vehicle body 1.

[0056] Specifically, as Figure 3 shown, the lifting device 5 adopts a connecting rod structure. The connecting rod structure includes a plurality of first rods and a plurality of second rods. The middle parts of each first rod and each second rod are rotatably connected. The upper end of the first rod is rotatably connected to the bearing plate 2, and the lower end of the first rod is slidably connected to the vehicle body 1; the upper end of the second rod is slidably connected to the bearing plate 2, and the lower end of the second rod is rotatably connected to the vehicle body 1.

[0057] The lifting device 5 can also be lifted by a hydraulic cylinder or a cylinder.

[0058] Further, wheels 6 are provided at the bottom of the vehicle body 1 to facilitate movement after carrying the battery.

[0059] Further, a back plate 7 is provided at one end of the vehicle body 1, and a pulling ring 8 is provided on the back plate 7, which further facilitates the user to move the platform truck.

[0060] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A platform vehicle, characterized in that: The invention comprises a vehicle body (1), a carrying plate (2), a clamping member (3) and a pushing device (4) arranged on the carrying plate (2); the clamping member (3) comprises two clamping parts (31) arranged on two sides of the carrying plate (2) in a relative manner; the two clamping parts (31) move towards each other or move away from each other in a coordinated manner; the pushing device (4) is arranged between the two clamping parts (31); and the pushing device (4) moves between the two ends of the carrying plate (2).

2. A platform vehicle according to claim 1, characterized in that: An end plate (21) is provided on one end of the carrying plate (2), and a receiving groove (211) is provided on the end plate (21), and the pushing device (4) can be moved into the receiving groove (211).

3. A platform vehicle according to claim 1, characterized in that: A moving track (22) is provided on the carrying plate (2), and the upper end of the clamping member (3) and the upper end of the pushing device (4) are both higher than the upper end of the moving track (22).

4. A platform vehicle according to claim 3, characterized in that: The movable track (22) comprises a plurality of rollers (221), and the plurality of rollers (221) are sequentially arranged between the two ends of the carrying plate (2).

5. A platform vehicle according to claim 3, characterized in that: A slide groove (23) is provided between the two sides of the carrier plate (2), the movable track (22) is arranged perpendicular to the slide groove (23), the number of the movable track (22) is not less than two, and the movable track (22) can be slidably arranged in the slide groove (23).

6. A platform vehicle according to claim 1, characterized in that: Also includes: A lifting device (5), wherein the lifting device (5) connects the vehicle body (1) and the carrying plate (2), and the lifting device (5) drives the carrying plate (2) to move along the height direction of the vehicle body (1).

7. A platform vehicle according to claim 1, characterized in that: Wheels (6) are provided at the bottom of the vehicle body (1).

8. A platform vehicle according to claim 2, characterized in that: A back plate (7) is provided on one end of the vehicle body (1), and a hand pull ring (8) is provided on the back plate (7).

9. A platform vehicle according to claim 1, characterized in that: The clamping member (3) further comprises two screw nut mechanisms (32) and a meshing mechanism, the nuts of the two screw nut mechanisms (32) can be slidably mounted on the bearing plate (2), the meshing mechanism connects the screws of the two screw nut mechanisms (32) and transmits opposite rotational forces between the screws of the two screw nut mechanisms (32), and the two clamping portions (31) are respectively arranged on the nuts of the two screw nut mechanisms (32).

10. A platform vehicle according to claim 9, characterized in that: The clamping member (3) further comprises a hand wheel (33), wherein the hand wheel (33) is connected to a screw of the screw nut mechanism (32).

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