A battery pack handling forklift

Abstract

This invention relates to the field of forklift technology, and more particularly to a battery pack handling forklift, including an AGV forklift and a connecting frame mounted on the AGV forklift's lifting mast. A forklift platform is located at the front of the connecting frame, and a pushing mechanism for pushing out battery packs is provided on the forklift platform. Top rods are fixedly connected to both sides of the top of the forklift platform, and infrared laser emitters for ensuring the automatic movement of the AGV forklift are fixedly connected to the top of each top rod. Side guard mechanisms for protecting the sides of the battery packs on the forklift platform are provided next to each top rod. A fixed frame is located at the bottom of the forklift platform. This invention, through the front guard mechanism, allows the L-shaped guard plate to be flipped to the front of the battery pack before the AGV forklift handles the battery pack, thus protecting the front of the battery pack and improving the safety performance of the AGV forklift during automatic cargo handling. Furthermore, when not in use, the L-shaped guard plate can be stored away without affecting the normal use of the forklift platform.

Description

Technical Field

[0001] This invention relates to the field of forklift technology, and more particularly to a battery pack transport forklift. Background Technology

[0002] Forklift AGVs are transport vehicles equipped with automatic guidance devices that can travel along a prescribed path. They have safety protection and various transfer functions, do not require a driver, and are equipped with electromagnetic or optical guidance devices. They have vehicle operation and parking devices, safety protection devices, and transfer functions. Due to their advantages such as speed and convenience, they are widely used in workshops, warehouses, airports, logistics and other places. They are an important branch of intelligent manufacturing and are increasingly being used in Industry 4.0 scenarios.

[0003] The prior art discloses an AGV forklift fork collision protection device, which uses a fixed plate to drive the clamping plates connected to it to move inward synchronously. The two sets of opposing clamping plates perform clamping operations and clamp and limit the goods, ensuring the stability of the goods when impacted and preventing the goods from falling off.

[0004] Although it can protect the sides of the goods on the forklift, there are still some shortcomings in actual use. Since the forklift can only protect the sides of the forks, it cannot protect the front of the forks. Therefore, when the forklift is transporting batteries or precision electronic devices, the safety of the goods cannot be guaranteed. In addition, most existing forklifts use AGV automatic guidance devices, which can travel along a prescribed guide path. If there are foreign objects on the prescribed route, the goods may be damaged during transportation, which will affect the subsequent handling work and cause waste of goods.

[0005] Therefore, a battery pack handling forklift was proposed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a battery pack handling forklift.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a battery pack handling forklift, including an AGV forklift and a connecting frame disposed on the lifting mast of the AGV forklift. A forklift platform is provided on the front side of the connecting frame. A pushing mechanism for pushing out battery packs is provided on the forklift platform. Top rods are fixedly connected to both sides of the top of the forklift platform. An infrared laser emitter for ensuring automatic driving of the AGV forklift is fixedly connected to the top of each top rod. Side guard mechanisms for protecting the sides of the battery packs on the forklift platform are provided next to each top rod. A fixed frame is provided at the bottom of the forklift platform. A front guard mechanism for protecting the front side of the battery packs on the forklift platform is provided on the fixed frame.

[0008] The front guard mechanism includes an upper electric telescopic cylinder, a pair of which are fixedly connected to the bottom side of the forklift platform. An L-shaped guard plate is rotatably connected to the inner side of the fixed frame away from the upper electric telescopic cylinder. A pull plate is fixedly connected to the top of the L-shaped guard plate away from the upper electric telescopic cylinder. A drive block is slidably connected to the inner side of the fixed frame, and a pull rope is fixedly connected between the drive block and the pull plate. An upper guide roller is rotatably connected to the fixed frame, and the pull rope passes over the upper guide roller. The output end of the upper electric telescopic cylinder passes through the side wall of the forklift platform and is fixedly connected to the side wall of the drive block. Side grooves are provided on both sides of the inner wall of the fixed frame. Side blocks are fixedly connected to both sides of the drive block, and the side blocks are slidably connected to the inner side of the side grooves. An upper spring is fixedly connected between the inner side of the side grooves and the side wall of the side blocks.

[0009] In the above technical solution, the forklift platform has a recessed groove at the bottom end on the side away from the AGV forklift, and a lower guide roller is rotatably connected to the inside of the groove.

[0010] In the above technical solution, the bottom of the fixed frame is further provided with an L-shaped limiting plate for restricting the L-shaped guard plate from flipping downwards, and the corner of the outer wall of the L-shaped guard plate is set in an arc shape, and the surface of the top of the L-shaped limiting plate that contacts the L-shaped guard plate is set as an inclined surface.

[0011] In the above technical solution, a pair of top grooves are provided at the bottom of the forklift platform, and a pair of top blocks are fixedly connected to the top of the fixed frame, with the top blocks slidably connected to the inside of the top grooves.

[0012] In the above technical solution, the side protection mechanism further includes a pair of side rods, both of which are slidably connected to the top two sides of the forklift platform. A side protection cloth is fixedly connected between the side rods and the top rod. A sliding groove is provided on the top of the forklift platform and below the side rods. A round rod is fixedly connected to the bottom of each side rod. An adjustment cavity is provided inside the drive block. Push rods for pushing the round rods to slide are slidably connected through both sides of the drive block. An adjustment mechanism for adjusting the position of the push rods is provided inside the adjustment cavity.

[0013] In the above technical solution, the round rod is slidably connected to the inner side of the sliding groove, and a lower spring is fixedly connected between the inner side of the sliding groove and the outer wall of the round rod.

[0014] In the above technical solution, the adjustment mechanism further includes a disc, which is rotatably connected to the middle of the inner side of the adjustment cavity. The upper and lower sides of the outer wall of the disc are provided with recessed adjustment grooves. The push rod is fixedly connected to the side closest to it. An adjustment spring is fixedly connected between the inner side of the adjustment cavity and the outer wall of the push rod. The end of the squeeze rod is tightly attached to the outer wall of the disc. A small servo motor is fixedly connected to the side wall of the drive block. The output end of the small servo motor passes through the inner side of the adjustment cavity and is fixedly connected to the side wall of the disc. An infrared sensor for detecting obstacles is fixedly connected to the side wall of the side rod.

[0015] In the above technical solution, the adjustment grooves are all inclined on the side away from each other, the end of the extrusion rod is set as a smooth arc surface, and the infrared sensor is electrically connected to a small servo motor through a controller.

[0016] In the above technical solution, a tilt sensor is fixedly connected to the forklift platform, a U-shaped plate is fixedly connected to the rear side of the forklift platform, the U-shaped plate is rotatably connected to the inner side of the connecting frame, a pair of grooves are provided on the side wall of the connecting frame, and a lower electric telescopic cylinder is rotatably connected to the inner side of each groove, and the output end of the lower electric telescopic cylinder is hinged to the bottom end of the side wall of the U-shaped plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention, through the setting of the front protection mechanism, can flip the L-shaped guard plate to the front of the battery pack before the AGV forklift moves the battery pack, thereby protecting the front of the battery pack, improving the safety performance of the AGV forklift during automatic cargo handling, greatly improving the safety performance of the device, and when not in use, the L-shaped guard plate can be stored away without affecting the normal use of the forklift platform.

[0019] 2. The present invention, through the setting of the side protection mechanism and the adjustment mechanism, can push the side rod to move while opening the L-shaped guard plate, thereby opening the side protection cloth, which can protect both sides of the battery pack, further improving the protective effect of the device. Moreover, when transporting extra-long goods on the forklift platform, only the front L-shaped guard plate can be opened without opening the side protection cloths on both sides, improving the flexibility of the device.

[0020] 3. By incorporating a lower electric telescopic cylinder, a connecting frame, and a U-shaped plate, this invention can adjust the tilt angle of the forklift platform when an excessively heavy battery pack is placed on it, preventing the battery pack from sliding forward or being squeezed against the L-shaped guard plate, thereby further improving the safety performance of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall appearance structure of the AGV forklift of the present invention;

[0022] Figure 2 This is a rear-view three-dimensional structural diagram of the forklift platform of the present invention;

[0023] Figure 3 This is a bottom-view perspective view of the forklift platform structure of the present invention.

[0024] Figure 4 Appendix of the present invention Figure 3 A magnified view of the structure at point A in the middle;

[0025] Figure 5 This is a partial side view full-section three-dimensional structural diagram of the forklift platform of the present invention;

[0026] Figure 6 This is a schematic diagram of the overall appearance structure of the fixing frame and L-shaped guard plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the overall appearance structure of the upper electric telescopic cylinder and drive block of the present invention;

[0028] Figure 8 This is a partial bottom-view full-section three-dimensional structural diagram of the driving block of the present invention;

[0029] Figure 9 This is a schematic diagram of the overall appearance structure of the side rod of the present invention;

[0030] Figure 10 This is a partial external structural diagram of the adjustment mechanism of the present invention;

[0031] Figure 11 This is a schematic diagram of the overall appearance structure of the L-shaped protective plate of the present invention;

[0032] Figure 12 Appendix of the present invention Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0033] Figure 13 Appendix of the present invention Figure 2 A magnified schematic diagram of the structure at point C.

[0034] In the diagram: 1. AGV forklift; 2. Forklift platform; 3. Pushing mechanism; 4. Top rod; 5. Infrared laser emitter; 6. Top groove; 7. Fixed frame; 8. Top block; 9. Upper electric telescopic cylinder; 10. L-shaped guard plate; 11. Pull plate; 12. Drive block; 13. Pull rope; 14. Upper guide roller; 15. Side groove; 16. Side block; 17. Upper spring; 18. Groove; 19. Lower guide roller; 20. L-shaped limit plate; 21. Side rod; 22. Side protective cloth; 23. Sliding groove; 24. Round rod; 25. Adjustment cavity; 26. Push rod; 27. Lower spring; 28. Disc; 29. ​​Adjustment groove; 30. Extrusion rod; 31. Adjustment spring; 32. Small servo motor; 33. Infrared sensor; 34. Tilt sensor;

[0035] 35. Connecting frame; 36. U-shaped plate; 37. Groove; 38. Lower electric telescopic cylinder. Detailed Implementation

[0036] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0038] like Figure 1-13The battery pack handling forklift shown includes an AGV forklift 1 and a forklift platform 2 mounted on the lifting mast of the AGV forklift 1. The forklift platform 2 is equipped with a tilt sensor 34. The lifting mast on the AGV forklift 1 can freely raise and lower the forklift platform 2. The AGV forklift 1 has a monitoring module, a positioning module, and an alarm module. The positioning module is used to accurately locate the position of the battery pack inserted in the forklift. The alarm module is used to provide an alarm when the forklift is too close to the battery pack to be replaced or when it is too close to surrounding obstacles. The camera in the monitoring module automatically centers and levels the battery packs on the forklift platform to ensure automatic handling of the battery packs, realizing automatic control of the AGV forklift 1. This is a mature technology in the prior art and will not be described in detail here. The forklift platform 2 is equipped with a pushing mechanism 3 for pushing out the battery packs. The pushing mechanism 3 can push the goods on the forklift platform 2 out. This facilitates automatic unloading of the forklift platform 2, which is a mature technology in the existing field and will not be described in detail here. The top two sides of the forklift platform 2 are fixedly connected to the top rods 4, and the top of the top rods 4 are fixedly connected to the infrared laser emitters 5 to ensure the automatic driving of the AGV forklift 1. By setting the infrared laser emitters 5, when the AGV forklift 1 is carrying the battery pack, it can emit a laser towards the body of the truck to be swapped, ensuring that the forklift moves in the direction of the laser beam and drives towards the forklift, achieving the initial positioning and ensuring that the forklift finally stops at the position of the battery pack on the truck. At the same time, it can play a safety protection role during the driving of the AGV forklift 1. This is a mature technology in the existing field and will not be described in detail here. The top rods 4 are equipped with side guards to protect the sides of the battery pack on the forklift platform 2. The bottom of the forklift platform 2 is equipped with a fixed frame 7, and the fixed frame 7 is equipped with a front guard to protect the front side of the battery pack on the forklift platform 2.

[0039] The front guard mechanism includes a pair of upper electric telescopic cylinders 9, both of which are fixedly connected to the bottom side of the forklift platform 2. An L-shaped guard plate 10 is rotatably connected to the inner side of the fixed frame 7, away from the upper electric telescopic cylinders 9. It should be noted that the hinge point between the L-shaped guard plate 10 and the fixed frame 7 is located at the top of the vertical end of the L-shaped guard plate 10, which can prevent dead points when the pull rope 13 pulls the L-shaped guard plate 10 to rotate. A pull plate 11 is fixedly connected to the top of the L-shaped guard plate 10, away from the upper electric telescopic cylinders 9. A drive block 12 is slidably connected to the inner side of the fixed frame 7, and a pull rope 13 is fixedly connected between the drive block 12 and the pull plate 11. An upper guide roller 14 is rotatably connected to the fixed frame 7. The upper guide roller 14 guides the sliding of the pull rope 13. When the drive block 12 pulls the pull rope 13, under the guidance of the upper guide roller 14, the pull rope 13 will pull the L-shaped guard plate 10 to flip. The pull rope 13 passes through the upper guide roller 14. The output end of the upper electric telescopic cylinder 9 passes through the side wall of the forklift platform 2 and is fixedly connected to the side wall of the drive block 12. Side grooves 15 are opened on both sides of the inner wall of the fixed frame 7. Side blocks 16 are fixedly connected on both sides of the drive block 12. The side blocks 16 are slidably connected to the inside of the side grooves 15. An upper spring 17 is fixedly connected between the inside of the side grooves 15 and the side wall of the side blocks 16. With the setting of the upper spring 17, the drive block 12 can be pushed to reset. At the same time, the thrust of the drive block 12 can be increased. When the fixed frame 7 is not restricted, the movement of the drive block 12 can drive the fixed frame 7 to slide under the forklift platform 2.

[0040] When the AGV forklift 1 is transporting the battery pack, it first moves to support the battery pack on the forklift platform 2. Then, it moves to an open space and then controls the upper electric telescopic cylinder 9 to push the drive block 12 to slide inside the fixed frame 7. Since the fixed frame 7 is not restricted at this time, and under the elastic force of the upper spring 17, the movement of the drive block 12 will drive the fixed frame 7 to slide under the forklift platform 2, and at the same time drive the top block 8 to slide inside the top groove 6. At the same time, the L-shaped guard plate 10 is completely moved out from under the forklift platform 2. After the L-shaped guard plate 10 has been moved out from under the forklift platform 2, the top block 8 will move to the end of the top groove 6, thereby restricting the top block 8 and the fixed frame 7 from continuing to slide.

[0041] However, under the continued drive of the upper electric telescopic cylinder 9, the drive block 12 will continue to move, thereby pushing the side blocks 16 on both sides of the drive block 12 to slide inside the side groove 15 and gradually compress the upper spring 17. At the same time, the movement of the drive block 12 will drive the pull rope 13 to move (originally, when the drive block 12 moved, it pushed the fixed frame 7 to slide at the same time, so it did not drive the pull rope 13 to move). Thus, under the guidance of the upper guide roller 14, the pull rope 13 pulls the L-shaped guard plate 10 to rotate around the hinge point with the fixed frame 7, thereby driving the L-shaped guard plate 10 to rotate. Plate 10 is completely rotated 90 degrees and moved to the front of the forklift platform 2, thereby protecting the front of the battery pack and improving the safety performance of the AGV forklift 1 during automatic cargo handling. This greatly enhances the safety performance of the device. Finally, the AGV forklift 1 is controlled to start and move the battery pack to the designated position. After reaching the designated position, the upper electric telescopic cylinder 9 is controlled to start in reverse, thereby repeating the above operation to reset and store the L-shaped guard plate 10. Then, the pushing mechanism 3 is controlled to start and push the battery pack out of the forklift platform 2.

[0042] To improve the smoothness of the device operation, a recessed groove 18 is provided at the bottom of the forklift platform 2 on the side away from the AGV forklift 1. A lower guide roller 19 is rotatably connected to the inside of the groove 18. With the setting of the groove 18 and the lower guide roller 19, the pull rope 13 can come into contact with the lower guide roller 19 after the L-shaped guard plate 10 is flipped over. This can prevent the pull rope 13 from directly contacting the side wall of the forklift platform 2, which would cause wear between the pull rope 13 and the side wall of the forklift platform 2 when the L-shaped guard plate 10 is pulled and flipped over, thus affecting the service life of the pull rope 13. At the same time, it improves the smoothness of the pull rope 13 during the pulling process.

[0043] To improve the stability of the device during operation, an L-shaped limiting plate 20 is fixedly connected to the bottom of the fixed frame 7 to limit the downward flipping of the L-shaped guard plate 10. The L-shaped limiting plate 20 can limit the downward flipping position of the L-shaped guard plate 10, further improving the stability of the L-shaped guard plate 10 after it is stored. The corner of the outer wall of the L-shaped guard plate 10 is rounded. The rounded corner of the outer wall of the L-shaped guard plate 10 can prevent the L-shaped guard plate 10 from being obstructed by the top of the L-shaped limiting plate 20 when it flips, thus affecting the normal flipping of the L-shaped guard plate 10. The surface of the top of the L-shaped limiting plate 20 that contacts the L-shaped guard plate 10 is set as a slope, which can prevent the L-shaped guard plate 10 from being placed horizontally below the fixed frame 7. This allows the folded L-shaped guard plate 10 to be placed at an angle on the L-shaped limiting plate 20, thereby preventing dead points when the pull rope 13 pulls the L-shaped guard plate 10 to flip it next time, and improving the smoothness of the L-shaped guard plate 10 when it flips.

[0044] In order to limit the sliding of the fixed frame 7, a pair of top grooves 6 are provided at the bottom of the forklift platform 2, and a pair of top blocks 8 are fixedly connected to the top of the fixed frame 7. The top blocks 8 are slidably connected to the inside of the top grooves 6. With the setting of the top grooves 6 and top blocks 8, when the upper electric telescopic cylinder 9 pushes the drive block 12 and the fixed frame 7 to slide, the top blocks 8 are driven to slide inside the top grooves 6. This can guide and limit the sliding of the fixed frame 7, prevent the fixed frame 7 from continuing to slide after it moves into place, ensure that the L-shaped guard plate 10 can be opened normally, and improve the stability of the device during operation.

[0045] To allow simultaneous opening of the L-shaped guard plate 10 and the protection on both sides of the battery pack, the side protection mechanism includes side rods 21. A pair of side rods 21 are provided, each slidably connected to the top of the forklift platform 2 on both sides. Side protective fabric 22 is fixedly connected between the side rods 21 and the top rod 4. Sliding grooves 23 are provided on the top of the forklift platform 2 below the side rods 21. Round rods 24 are fixedly connected to the bottom of each side rod 21. An adjustment cavity 25 is provided inside the drive block 12, and both sides of the drive block 12 are slidably connected. There is a push rod 26 for pushing the round rod 24 to slide. The adjustment cavity 25 is provided with an adjustment mechanism for adjusting the position of the push rod 26. The round rod 24 is slidably connected to the inner side of the sliding groove 23. The sliding groove 23 and the round rod 24 can guide the sliding of the side rod 21. The inner side of the sliding groove 23 and the outer wall of the round rod 24 are fixedly connected with a lower spring 27. The lower spring 27 facilitates the push rod 24 to reset together with the push rod 26 when the drive block 12 and the push rod 26 are reset.

[0046] During the operation of the front protection mechanism, the upper electric telescopic cylinder 9 is activated to push the drive block 12 to move, thereby driving the push rods 26 on both sides of the drive block 12 to move simultaneously. The push rods 26 then push the round rod 24 to slide inside the sliding groove 23 and gradually compress the lower spring 27. At the same time, the side protective cloth 22 is gradually opened until the L-shaped protective plate 10 is completely flipped open. The side rod 21 also moves to the corresponding position, and the side protective cloth 22 is fully opened, thus protecting both sides of the battery pack on the forklift platform 2 and further improving the protective effect of the device. When the L-shaped protective plate 10 is retracted, the round rod 24 and the side rod 21 are gradually pushed back to their original positions under the elastic force of the lower spring 27, and the side protective cloth 22 is squeezed and folded between the side rod 21 and the top rod 4.

[0047] To allow for the handling of extra-long goods on the forklift platform 2 by opening only the front L-shaped guard plate 10, an adjustment mechanism includes a disc 28. The disc 28 is rotatably connected to the center of the inner side of the adjustment cavity 25. Recessed adjustment grooves 29 are provided on both the upper and lower sides of the outer wall of the disc 28. A pressing rod 30 is fixedly connected to the push rod 26 on its adjacent side. Adjusting springs 31 are fixedly connected between the inner side of the adjustment cavity 25 and the outer wall of the push rod 26. The adjusting springs 31 facilitate pushing the pressing rod 30 into the adjustment groove 29. The end of the pressing rod 30 is tightly... A small servo motor 32 is fixedly connected to the side wall of the drive block 12, which is closely attached to the outer wall of the disc 28. The output end of the small servo motor 32 passes through the inner side of the adjustment cavity 25 and is fixedly connected to the side wall of the disc 28. Infrared sensors 33 for detecting obstacles are fixedly connected to the side walls of the side rods 21. The infrared sensors 33 can automatically detect whether the forklift platform 2 is carrying oversized goods, and then automatically control the small servo motor 32 to start, and control whether the side guard 22 opens together with the L-shaped guard plate 10, thereby improving the automation efficiency of the device.

[0048] Furthermore, the adjustment grooves 29 are all inclined on the side that is far apart from each other, so that the extrusion rod 30 can slide out of the inner side of the adjustment groove 29 more smoothly, thereby improving the smoothness of the device during operation. The end of the extrusion rod 30 is set as a smooth arc surface, which makes it easier for the extrusion rod 30 to slide out of the adjustment groove 29 more smoothly, further improving the smoothness of the device during operation. In addition, the infrared sensor 33 is electrically connected to the small servo motor 32 through the controller.

[0049] When the front guard mechanism is activated, the infrared sensor 33 monitors for obstacles on the forklift platform 2 and at the position where the side guard 22 is to be moved. If the forklift platform 2 is handling an oversized cargo, the infrared sensor 33 will detect this and transmit the signal to the controller. The controller then controls the small servo motor 32 to start and rotate the disc 28, thereby rotating the adjusting groove 29 to the side of the pressing rod 30. This gradually releases the pressure on the pressing rod 30. Subsequently, under the elastic force of the adjusting spring 31, the pressing rod 30 is pushed into the adjusting groove 29, and the two push rods 26 are driven to move towards... Slide the push rod 26 to one side, thereby moving the other side of the push rod 26 away from the round rod 24. Then, the controller will control the upper electric telescopic cylinder 9 of the front guard mechanism to start and open the L-shaped guard plate 10. At this time, since the push rod 26 is moved away from the round rod 24, it will not drive the round rod 24 to move and open the side guard 22, thereby realizing the individual opening of the L-shaped guard plate 10 and improving the flexibility of the device. Finally, after the L-shaped guard plate 10 is reset, the controller will control the small servo motor 32 to reverse, thereby repeating the above operation in reverse to push out the extrusion rod 30 and the push rod 26.

[0050] In order to adjust the tilt angle of the forklift platform 2 when a heavy battery pack is placed on it, a tilt sensor 34 is fixedly connected to the forklift platform 2. A U-shaped plate 36 is fixedly connected to the rear side of the forklift platform 2. The U-shaped plate 36 is rotatably connected to the inner side of the connecting frame 35. A pair of grooves 37 are provided on the side wall of the connecting frame 35. A lower electric telescopic cylinder 38 is rotatably connected to the inner side of each groove 37. The output end of the lower electric telescopic cylinder 38 is hinged to the bottom end of the side wall of the U-shaped plate 36.

[0051] Since battery packs typically weigh 3 to 5 tons, they can easily tilt downwards when placed on a forklift platform, affecting the accuracy of battery pack installation. The designed tilt sensor 34 can quickly measure the tilt angle of the forklift platform 2 and then transmit the tilt signal to the AGV forklift 1. The lower electric telescopic cylinder 38 is electrically connected to the tilt sensor 34 through a controller. When the forklift platform 2 tilts, the AGV forklift 1 quickly controls the lower electric telescopic cylinder 38 to start, pushing the bottom of the U-shaped plate 36 to move. This causes the U-shaped plate 36 to rotate the forklift platform 2 around the hinge, lifting the front end of the forklift platform 2 to a horizontal position. This prevents the battery pack from sliding forward and pressing against the L-shaped guard plate 10, ensuring the stability of the AGV forklift during use.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention.

[0053] Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A battery pack handling forklift, comprising an AGV forklift and a connecting frame disposed on the lifting mast of the AGV forklift, wherein a forklift platform is provided on the front side of the connecting frame, and a pushing mechanism for pushing out battery packs is provided on the forklift platform, characterized in that: The top of the forklift platform is fixedly connected to both sides of the top. The top of each top rod is fixedly connected to an infrared laser emitter to ensure the automatic driving of the AGV forklift. Side guards are provided next to each top rod to protect the battery pack on both sides of the forklift platform. The bottom of the forklift platform is provided with a fixed frame, and a front guard is provided on the fixed frame to protect the front of the battery pack on the forklift platform. The front guard mechanism includes an upper electric telescopic cylinder, a pair of which are fixedly connected to the bottom side of the forklift platform. An L-shaped guard plate is rotatably connected to the inner side of the fixed frame away from the upper electric telescopic cylinder. A pull plate is fixedly connected to the top of the L-shaped guard plate away from the upper electric telescopic cylinder. A drive block is slidably connected to the inner side of the fixed frame, and a pull rope is fixedly connected between the drive block and the pull plate. An upper guide roller is rotatably connected to the fixed frame, and the pull rope passes over the upper guide roller. The output end of the upper electric telescopic cylinder passes through the side wall of the forklift platform and is fixedly connected to the side wall of the drive block. Side grooves are provided on both sides of the inner wall of the fixed frame. Side blocks are fixedly connected to both sides of the drive block, and the side blocks are slidably connected to the inner side of the side grooves. An upper spring is fixedly connected between the inner side of the side grooves and the side wall of the side blocks. The bottom of the forklift platform is provided with a pair of top grooves, and the top of the fixed frame is fixedly connected with a pair of top blocks, and the top blocks are slidably connected to the inside of the top grooves; The side protection mechanism includes a pair of side rods, each slidably connected to the top of the forklift platform on both sides. A side protection cloth is fixedly connected between the side rod and the top rod. A sliding groove is provided on the top of the forklift platform below the side rod. A round rod is fixedly connected to the bottom of each side rod. An adjustment cavity is provided inside the drive block. Push rods for pushing the round rods to slide are slidably connected through both sides of the drive block. An adjustment mechanism for adjusting the position of the push rods is provided inside the adjustment cavity.

2. The battery pack handling forklift according to claim 1, characterized in that: The forklift platform has a recessed groove at the bottom of the side away from the AGV forklift, and a lower guide roller is rotatably connected to the inside of the groove.

3. The battery pack handling forklift according to claim 1, characterized in that: The bottom of the fixed frame is fixedly connected to an L-shaped limiting plate for restricting the L-shaped guard plate from flipping downwards, and the corner of the outer wall of the L-shaped guard plate is set in an arc shape, and the top surface of the L-shaped limiting plate that contacts the L-shaped guard plate is set as a slope.

4. A battery pack handling forklift according to claim 1, characterized in that: Furthermore, the round rod is slidably connected to the inner side of the sliding groove, and a lower spring is fixedly connected between the inner side of the sliding groove and the outer wall of the round rod.

5. A battery pack handling forklift according to claim 1, characterized in that: The adjustment mechanism includes a disc rotatably connected to the center of the inner side of the adjustment cavity. Recessed adjustment grooves are formed on both the upper and lower sides of the outer wall of the disc. A pressing rod is fixedly connected to the side of the push rod closest to each other. An adjustment spring is fixedly connected between the inner side of the adjustment cavity and the outer wall of the push rod. The end of the pressing rod is tightly fitted against the outer wall of the disc. A small servo motor is fixedly connected to the side wall of the drive block. The output end of the small servo motor passes through the inner side of the adjustment cavity and is fixedly connected to the side wall of the disc. Infrared sensors for detecting obstacles are fixedly connected to the side walls of the side rods.

6. A battery pack handling forklift according to claim 5, characterized in that: Furthermore, the adjustment grooves are all inclined on the side furthest from each other, the end of the extrusion rod is set as a smooth arc surface, and the infrared sensor is electrically connected to a small servo motor through a controller.

7. A battery pack handling forklift according to claim 1, characterized in that: An angle sensor is fixedly connected to the forklift platform, and a U-shaped plate is fixedly connected to the rear side of the forklift platform. The U-shaped plate is rotatably connected to the inner side of the connecting frame. A pair of grooves are provided on the side wall of the connecting frame. A lower electric telescopic cylinder is rotatably connected to the inner side of each groove. The output end of the lower electric telescopic cylinder is hinged to the bottom end of the side wall of the U-shaped plate.

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