A transport device for lithium batteries

Abstract

This invention relates to the field of transportation device technology and discloses a transportation device for lithium batteries, which solves the problem of poor safety in existing lithium battery transportation devices. The device includes a transportation box with a foldable handle at one end and a cover plate hinged to the top. Inside the box, at the bottom, are two movably mounted buffer support plates, connected by a hinge. Each buffer support plate has several airbags and several limiting support buffer mechanisms fixedly mounted at its bottom. A cross-shaped limiting groove matching the limiting support buffer mechanisms is provided at the bottom of the inside of the transportation box. Side buffer mechanisms are provided on all four sides inside the transportation box. This transportation device increases the buffer protection of the lithium battery, preventing it from being subjected to violent impacts and thus improving its safety.

Description

Technical Field

[0001] This invention belongs to the field of transportation device technology, specifically a transportation device for lithium batteries. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. They are widely used because of their small size and good energy storage performance.

[0003] The processing, storage, and use of lithium batteries have high environmental requirements. After processing, lithium batteries need to be transported. However, existing lithium battery transport devices lack a buffer structure during transportation, which can easily cause impacts to the lithium batteries, damage their internal structure, and even cause them to burn or explode, posing a high risk. This also poses certain safety hazards to users and affects product quality. Therefore, this application proposes a transport device for lithium batteries to solve the above problems. Summary of the Invention

[0004] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a transportation device for lithium batteries, which effectively solves the problem of poor safety of existing lithium battery transportation devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a transportation device for lithium batteries, comprising a transportation box, wherein a plurality of support wheels are fixedly provided at one end of the bottom of the transportation box, a plurality of universal wheels are fixedly provided at the other end of the bottom of the transportation box, a foldable handle is provided at one end of the transportation box, a cover plate is provided at the top of the transportation box and is movably connected to the transportation box by a hinge, a buffer support base plate one and a buffer support base plate two are movably provided at the bottom of the interior of the transportation box, the buffer support base plate one and the buffer support base plate two are movably connected by a movable shaft, a plurality of buffer airbags and a plurality of limiting support buffer mechanisms are fixedly provided at the bottom of both the buffer support base plate one and the buffer support base plate two, a cross-shaped limiting groove matching the limiting support buffer mechanism is provided at the bottom of the interior of the transportation box, and side buffer mechanisms are provided on all four sides of the interior of the transportation box.

[0006] Preferably, the limiting support buffer mechanism consists of a central support base, four movable support arms, four roller sets, and four buffer springs. The central support base is fixedly connected to the bottom ends of buffer support base plate one and buffer support base plate two. The movable support arms are movably connected to the four sides of the central support base. The roller sets are movably connected to the ends of the movable support arms away from the central support base and are matched with the cross-shaped limiting grooves. The buffer springs are fixedly connected between two adjacent movable support arms.

[0007] Preferably, a thickened buffer silicone pad is fixedly provided at the bottom end of the cover plate, and a built-in airbag is fixedly provided inside the thickened buffer silicone pad. Both the built-in airbag and the buffer airbag are made of memory rubber, and both ends of the built-in airbag and the buffer airbag are provided with inlet and outlet micro-holes.

[0008] Preferably, the side buffer mechanism consists of a buffer support side plate, several limiting guide rails, several following propulsion components, a buffer side pressure plate, several buffer elastic components, and several free-moving side buffer components. The limiting guide rails are fixedly connected to the top of the inner side wall of the transport box, the buffer support side plate is slidably sleeved on the limiting guide rails, the following propulsion components are movably connected between the buffer support side plate and the inner side wall of the transport box, and the buffer side pressure plate is connected to one side of the buffer support side plate through the buffer elastic components and the free-moving side buffer components.

[0009] Preferably, the transport box has several vertical grooves inside. Movable guide wheel one and movable guide wheel two are movably arranged at the bottom of the transport box near the vertical grooves. A traction steel rope fixedly connected to the following propulsion component is arranged inside the vertical grooves. The other end of the traction steel rope passes through movable guide wheel one and movable guide wheel two in sequence and is fixedly connected to the side of buffer support plate one and buffer support plate two.

[0010] Preferably, the following propulsion assembly consists of a fixed seat, a limiting slide, a V-shaped movable frame, a push spring, and a movable pressure roller. The fixed seat is fixedly connected to the inner wall of the transport box, the limiting slide is slidably connected to the inside of the vertical slide groove, the V-shaped movable frame and the push spring are both movably connected between the fixed seat and the limiting slide, the movable pressure roller is movably connected to the cross connection of the V-shaped movable frame, and the limiting slide is fixedly connected to the traction steel rope.

[0011] Preferably, a buffer rubber pad is fixedly installed on the side of the buffer side pressure plate away from the buffer support side plate. The buffer rubber pad has several through holes. Several permanent magnets are fixedly installed on the side of the buffer side pressure plate near the buffer support side plate. Several permanent magnets matching the permanent magnets are fixedly installed on the side of the buffer support side plate near the buffer side pressure plate. The permanent magnets are of the same polarity. The buffer elastic component is composed of deformable shape memory metal and a circular pad. The deformable shape memory metal is fixedly connected to one side of the buffer side pressure plate, and the circular pad is fixedly connected to one end of the deformable shape memory metal.

[0012] Preferably, the free-movement side buffer assembly consists of a universal sleeve, a universal ball joint, a sliding sleeve, a guide rod, and a buffer spring. The universal sleeve is fixedly connected to the inside of the buffer support side plate, the universal ball joint is slidably connected to the inside of the universal sleeve, the sliding sleeve is fixedly connected to the inside of the universal ball joint, one end of the guide rod is fixedly connected to the buffer side pressure plate, and the other end of the guide rod is slidably inserted into the sliding sleeve. The buffer spring is sleeved on the guide rod and located between the sliding sleeve and the buffer side pressure plate.

[0013] Preferably, the foldable handle comprises several hollow sleeve rods, several movable connecting seats, several telescopic inner rods, several auxiliary support rods, several slide blocks one, several slide blocks two, and a push rod. The hollow sleeve rods are movably connected to the transport box via the movable connecting seats. The telescopic inner rods slide through the hollow sleeve rods. A strip-shaped groove one is provided on one side of the telescopic inner rod. Slide blocks one is slidably connected to the inside of the strip-shaped groove one. Several strip-shaped grooves two are provided on one side of the transport box. The movable connecting seats slide to the inside of the strip-shaped grooves two. The auxiliary support rods are movably connected between slide blocks one and slide blocks two. The push rod is fixedly connected between the two telescopic inner rods. A locking bolt matching slide blocks one side is provided on one side of the telescopic inner rod. An N-pole magnet is fixedly provided on one side of the hollow sleeve rod. An S-pole magnet matching the N-pole magnet is fixedly provided on one side of the auxiliary support rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) In operation, the bottom of the lithium battery can be damped by the buffer airbag and the limiting support buffer mechanism consisting of a central support seat, four movable support arms, four roller groups and four buffer springs. The top of the lithium battery can be buffered by the thickened buffer silicone pad and the built-in airbag.

[0016] (2) By setting up a side buffer mechanism consisting of a buffer support side plate, several limiting guide rails, several following propulsion components, a buffer side pressure plate, several buffer elastic components and several free-moving side buffer components, it can cooperate with the limiting support buffer mechanism to achieve buffer protection of the four sides of the lithium battery and avoid the lithium battery from being impacted and affecting its safety.

[0017] (3) By setting a foldable handle consisting of several hollow sleeve rods, several movable connecting seats, several telescopic inner rods, several auxiliary support rods, several slide seats one, several slide seats two and a push rod, the foldable handle can be folded and stored, thereby improving adaptability. When the transport device is transported in a unified manner by a transport vehicle, the space occupied can be reduced. When the transport device is moved separately, the convenience of pushing and pulling the device can be improved by unfolding the handle. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

[0020] Figure 1 This is one of the schematic diagrams of the transportation device for lithium batteries according to the present invention;

[0021] Figure 2 This is the second schematic diagram of the structure of the transportation device for lithium batteries according to the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the transportation device for lithium batteries according to the present invention;

[0023] Figure 4 This is a schematic diagram of the limiting support buffer mechanism of the present invention;

[0024] Figure 5 For the present invention Figure 3 A magnified view of a portion of the image;

[0025] Figure 6 For the present invention Figure 5 A magnified view of a portion of the image;

[0026] Figure 7 This is a schematic diagram of the free-movement side buffer assembly structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the foldable handle structure of the present invention;

[0028] In the diagram: 1. Transport box; 2. Support wheel; 3. Caster wheel; 4. Foldable handle; 5. Cover plate; 6. Buffer support base plate one; 7. Buffer support base plate two; 8. Movable shaft; 9. Buffer airbag; 10. Limiting support buffer mechanism; 11. Cross-shaped limiting groove; 12. Side buffer mechanism; 13. Central support seat; 14. Movable support arm; 15. Roller assembly; 16. Buffer tension spring; 17. Thickened buffer silicone pad; 18. Built-in airbag; 19. Inlet and outlet micro-holes; 20. Buffer support side plate; 21. Limiting guide rail; 22. Follow-up propulsion assembly; 23. Buffer side pressure plate; 24. Buffer elastic assembly; 25. Free-moving side buffer assembly; 26. Vertical slide; 27. Movable guide wheel 1. 28. Movable guide wheel 2. 29. Traction steel rope. 30. Fixed seat. 31. Limiting slide. 32. V-shaped movable frame. 33. Push spring. 34. Movable pressure roller. 35. Buffer rubber pad. 36. Through hole. 37. Permanent magnet 1. 38. Permanent magnet 2. 39. Deformable shape memory metal. 40. Circular pad. 41. Universal sleeve. 42. Universal ball joint. 43. Sliding sleeve. 44. Guide rod. 45. Buffer spring. 46. Hollow sleeve rod. 47. Movable connecting seat. 48. Telescopic inner rod. 49. Auxiliary support rod. 50. Slide 1. 51. Slide 2. 52. Hand push rod. 53. Strip slide 1. 54. Strip slide 2. 55. Locking bolt. 56. N pole magnet. 57. S pole magnet. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Example 1, by Figures 1 to 3 The present invention provides a transport device for lithium batteries, comprising a transport box 1, a plurality of support wheels 2 fixedly mounted at one end of the bottom of the transport box 1, a plurality of universal wheels 3 fixedly mounted at the other end of the bottom of the transport box 1, a foldable handle 4 mounted at one end of the transport box 1, a cover plate 5 mounted at the top of the transport box 1 and movably connected to the transport box 1 by a hinge, a buffer support base plate 1 6 and a buffer support base plate 2 7 movably mounted at the bottom of the interior of the transport box 1, the buffer support base plate 1 6 and the buffer support base plate 2 7 being movably connected by a movable shaft 8, a plurality of buffer airbags 9 and a plurality of limiting support buffer mechanisms 10 fixedly mounted at the bottom of both the buffer support base plate 1 6 and the buffer support base plate 2 7, a cross-shaped limiting groove 11 matching the limiting support buffer mechanism 10 being opened at the bottom of the interior of the transport box 1, and side buffer mechanisms 12 being provided on all four sides of the interior of the transport box 1;

[0031] Example 2, based on Example 1, is... Figure 3 and Figure 4 The limiting support buffer mechanism 10 consists of a central support base 13, four movable support arms 14, four roller sets 15, and four buffer springs 16. The central support base 13 is fixedly connected to the bottom ends of the buffer support base plate 1 6 and the buffer support base plate 2 7. The movable support arms 14 are movably connected to the four sides of the central support base 13. The roller sets 15 are movably connected to the ends of the movable support arms 14 away from the central support base 13 and are matched with the cross-shaped limiting grooves 11. The buffer springs 16 are fixedly connected between two adjacent movable support arms 14. A thickened buffer silicone pad 17 is fixedly installed at the bottom end of the cover plate 5. An internal airbag 18 is fixedly installed inside the thickened buffer silicone pad 17. Both the internal airbag 18 and the buffer airbag 9 are made of memory rubber. Both ends of the internal airbag 18 and the buffer airbag 9 are provided with inlet and outlet micro-holes 19.

[0032] After opening cover 5, place the lithium battery inside transport box 1, positioning it at the top of buffer support base plate 6 and buffer support base plate 7. Buffer support base plate 6 and buffer support base plate 7 are then pressed down to a certain position under pressure. During this pressing process, roller assembly 15 moves along cross-shaped limiting groove 11, buffer spring 16 is stretched to a certain length, the inclination of movable support arm 14 decreases, and the buffer airbag 9 is compressed to a certain degree, ensuring that the compression of the buffer airbag 9 and the limiting support buffer mechanism 10 is balanced with the weight of the lithium battery. Then, cover plate 5 is closed. When the lithium battery is vibrated, the instantaneous vibration force exerts a large pressure on the limiting support buffer mechanism 10, and the buffer spring 16 is further stretched, thus achieving a buffering effect. The buffer airbag 9 and the built-in airbag 18 are filled with air. After being pressurized, the inlet and outlet micro-holes 19 are used to exhaust air. Since the inlet and outlet micro-holes 19 have a small aperture, their exhaust speed is constant when the vibration is severe. Therefore, the lithium battery is protected, and excessive vibration is prevented from causing the lithium battery to collide with the transport box 1 and affecting the safety of the lithium battery.

[0033] Example 3, based on Example 2, by Figures 1 to 6 The side buffer mechanism 12 is composed of a buffer support side plate 20, several limiting guide rails 21, several following propulsion components 22, a buffer side pressure plate 23, several buffer elastic components 24, and several free-moving side buffer components 25. The limiting guide rails 21 are fixedly connected to the top of the inner wall of the transport box 1. The buffer support side plate 20 is slidably sleeved on the limiting guide rails 21. The following propulsion components 22 are movably connected between the buffer support side plate 20 and the inner wall of the transport box 1. The buffer side pressure plate 23 is connected to one side of the buffer support side plate 20 through the buffer elastic components 24 and the free-moving side buffer components 25. Several vertical grooves 26 are opened inside the transport box 1. Movable guide wheels 27 and movable guides are movably arranged at the bottom of the transport box 1 near the vertical grooves 26. The second wheel 28 and the vertical chute 26 are equipped with a traction steel rope 29 that is fixedly connected to the following propulsion assembly 22. The other end of the traction steel rope 29 passes through the first movable guide wheel 27 and the second movable guide wheel 28 in sequence and is fixedly connected to the side of the first buffer support base plate 6 and the second buffer support base plate 7. The following propulsion assembly 22 is composed of a fixed seat 30, a limiting slide 31, a V-shaped movable frame 32, a push spring 33 and a movable pressure wheel 34. The fixed seat 30 is fixedly connected to the inner side wall of the transport box 1. The limiting slide 31 is slidably connected to the inside of the vertical chute 26. The V-shaped movable frame 32 and the push spring 33 are both movably connected between the fixed seat 30 and the limiting slide 31. The movable pressure wheel 34 is movably connected to the cross connection of the V-shaped movable frame 32. The limiting slide 31 is fixedly connected to the traction steel rope 29.

[0034] As the buffer support base plate 1 (6) and buffer support base plate 2 (7) press down, they press down on the traction steel rope 29. The traction steel rope 29 is guided by the movable guide wheels 1 (27) and 2 (28). The other end of the traction steel rope 29 pulls the limiting slide 31 downwards. During the downward movement of the limiting slide 31, the V-shaped movable frame 32 moves, reducing the angle between the V-shaped movable frames 32. This causes the movable pressure wheel 34 to move through the V-shaped movable frames 32. At this time, the push spring 33 is compressed, and the movable pressure wheel 34 pushes the buffer support... The side plate 20 moves along the limiting guide rail 21 toward the side closer to the lithium battery, thereby driving the buffer side pressure plate 23, the buffer elastic component 24 and the free-moving side buffer component 25 to move synchronously, so that the buffer side pressure plate 23 fits against the side of the lithium battery to limit the lithium battery. However, at this time, the buffer side pressure plate 23 is not under pressure. When the lithium battery vibrates during transportation, it will press the buffer side pressure plate 23, and the buffer elastic component 24 and the free-moving side buffer component 25 will achieve lateral buffering in the first time.

[0035] Example 4, based on Example 2, by Figures 3 to 7 As shown, a buffer rubber pad 35 is fixedly installed on the side of the buffer side plate 23 away from the buffer support side plate 20. The buffer rubber pad 35 has several through holes 36. Several permanent magnets 37 are fixedly installed on the side of the buffer side plate 23 near the buffer support side plate 20. Several permanent magnets 38 that match the permanent magnets 37 are fixedly installed on the side of the buffer support side plate 20 near the buffer side plate 23. The permanent magnets 37 and 38 are magnets of the same polarity. The buffer elastic component 24 is composed of a deformable shape memory metal 39 and a circular pad 40. The deformable shape memory metal 39 is fixedly connected to one side of the buffer side plate 23. A circular pad 40 is fixedly connected to one end of a deformable shape memory metal 39. The free-moving side buffer assembly 25 is composed of a universal sleeve 41, a universal ball joint 42, a sliding sleeve 43, a guide rod 44, and a buffer spring 45. The universal sleeve 41 is fixedly connected to the inside of the buffer support side plate 20. The universal ball joint 42 is slidably connected to the inside of the universal sleeve 41. The sliding sleeve 43 is fixedly connected to the inside of the universal ball joint 42. One end of the guide rod 44 is fixedly connected to the buffer side pressure plate 23. The other end of the guide rod 44 is slidably inserted into the sliding sleeve 43. The buffer spring 45 is sleeved on the guide rod 44 and located between the sliding sleeve 43 and the buffer side pressure plate 23.

[0036] When the buffer side pressure plate 23 is subjected to the pressure of the lithium battery, the deformable memory metal 39 is compressed, the circular pad 40 fits against the buffer support side plate 20, and magnetic buffering is achieved by permanent magnet 37 and permanent magnet 38. At the same time, the guide rod 44 slides inside the sliding sleeve 43, and spring buffering is achieved by the buffer spring 45. Therefore, three types of buffer protection can be formed. If the transport device causes the lithium battery to vibrate obliquely downward, the universal ball head 42 will rotate irregularly inside the universal sleeve 41. Therefore, multi-directional buffering can be achieved, effectively eliminating the impact of vibration on the lithium battery and improving the safety of the lithium battery.

[0037] Example 5, based on Example 1, by Figure 1 , Figure 2 and Figure 8 The foldable handle 4 is composed of several hollow sleeve rods 46, several movable connecting seats 47, several telescopic inner rods 48, several auxiliary support rods 49, several slide blocks 50, several slide blocks 51, and a push rod 52. The hollow sleeve rods 46 are movably connected to the transport box 1 through the movable connecting seats 47. The telescopic inner rods 48 slide through the hollow sleeve rods 46. A strip groove 53 is opened on one side of the telescopic inner rod 48. The slide blocks 50 are slidably connected to the inside of the strip groove 53. A push rod 52 is opened on one side of the transport box 1. The device is provided with several strip-shaped grooves 54. The movable connecting seat 47 is slidably connected to the inside of the strip-shaped grooves 54. The auxiliary support rod 49 is slidably connected between the slide block 50 and the slide block 51. The push rod 52 is fixedly connected between the two telescopic inner rods 48. A locking bolt 55 matching the slide block 50 is provided on one side of the telescopic inner rod 48. An N pole magnet 56 is fixedly provided on one side of the hollow sleeve rod 46. An S pole magnet 57 matching the N pole magnet 56 is fixedly provided on one side of the auxiliary support rod 49.

[0038] When the transport box 1 needs to be transported by a transport vehicle, the foldable handle 4 can be folded without disassembling it, thus improving the convenience of transportation and eliminating the disassembly and assembly process. When folding the foldable handle 4, the locking bolt 55 is released, the telescopic inner rod 48 is inserted into the hollow sleeve rod 46, and at the same time, the first slide 50 and the second slide 51 are pushed, so that the first slide 50 moves to the top of the first strip groove 53 and the second slide 51 moves to the bottom of the second strip groove 54. The auxiliary support rod 49 is in contact with the hollow sleeve rod 46. At this time, the N pole magnet 56 and the S pole magnet 57 attract each other, thereby realizing the foldable handle 4 to be folded and stored, reducing the space occupied. When the transport box 1 needs to be moved separately, the foldable handle 4 is unfolded and pushed manually.

[0039] During operation, the device utilizes a buffer airbag and a limiting support buffer mechanism consisting of a central support base, four movable support arms, four roller groups, and four buffer springs to dampen shocks at the bottom of the lithium battery. Thickened buffer silicone pads and built-in airbags provide cushioning for the top of the lithium battery. A side buffer mechanism, consisting of buffer support side plates, several limiting guide rails, several following propulsion components, buffer side pressure plates, several buffer elastic components, and several free-moving side buffer components, works in conjunction with the limiting support buffer mechanism to buffer and protect the four sides of the lithium battery from impacts, ensuring its safety. A foldable handle, consisting of several hollow sleeve rods, several movable connecting seats, several telescopic inner rods, several auxiliary support rods, several slide seats one, several slide seats two, and a push rod, allows for foldable storage, improving adaptability. When transported by a transport vehicle, the device occupies less space; when moved individually, unfolding the handle enhances ease of pushing and pulling.

Claims

1. A transport device for lithium batteries, comprising a transport box (1), characterized in that: The bottom of the transport box (1) is fixedly provided with several support wheels (2), and the bottom of the other end of the transport box (1) is fixedly provided with several universal wheels (3). One end of the transport box (1) is provided with a foldable handle (4). The top of the transport box (1) is provided with a cover plate (5) that is movably connected to the transport box (1) by a hinge. The bottom of the transport box (1) is movably provided with a buffer support base plate one (6) and a buffer support base plate two (7). The buffer support base plate one (6) and the buffer support base plate two (7) are movably connected by a movable shaft (8). The bottom ends of the buffer support base plate one (6) and the buffer support base plate two (7) are both fixedly provided with several buffer airbags (9) and several limiting support buffer mechanisms (10). The bottom of the transport box (1) is provided with a cross-shaped limiting groove (11) that matches the limiting support buffer mechanism (10). The four sides of the transport box (1) are provided with side buffer mechanisms (12). The side buffer mechanism (12) consists of a buffer support side plate (20), several limiting guide rails (21), several following propulsion components (22), a buffer side pressure plate (23), several buffer elastic components (24) and several free-movement side buffer components (25). The limiting guide rails (21) are fixedly connected to the top of the inner side wall of the transport box (1). The buffer support side plate (20) is slidably sleeved on the limiting guide rails (21). The following propulsion components (22) are movably connected between the buffer support side plate (20) and the inner side wall of the transport box (1). The buffer side pressure plate (23) is connected to one side of the buffer support side plate (20) through the buffer elastic components (24) and the free-movement side buffer components (25). The transport box (1) has several vertical slides (26) inside. The bottom of the transport box (1) is movably equipped with a first movable guide wheel (27) and a second movable guide wheel (28) near the vertical slides (26). The vertical slides (26) are equipped with a traction steel rope (29) that is fixedly connected to the following propulsion assembly (22). The other end of the traction steel rope (29) passes through the first movable guide wheel (27) and the second movable guide wheel (28) in sequence and is fixedly connected to the side of the first buffer support plate (6) and the second buffer support plate (7). The following propulsion assembly (22) consists of a fixed seat (30), a limiting slide (31), a V-shaped movable frame (32), a push spring (33), and a movable pressure wheel (34). The fixed seat (30) is fixedly connected to the inner wall of the transport box (1). The limiting slide (31) is slidably connected to the inside of the vertical slide groove (26). The V-shaped movable frame (32) and the push spring (33) are both movably connected between the fixed seat (30) and the limiting slide (31). The movable pressure wheel (34) is movably connected to the cross connection of the V-shaped movable frame (32). The limiting slide (31) is fixedly connected to the traction steel rope (29). A buffer rubber pad (35) is fixedly installed on the side of the buffer side plate (23) away from the buffer support side plate (20). The buffer rubber pad (35) has several through holes (36) inside. A number of permanent magnets (37) are fixedly installed on the side of the buffer side plate (23) close to the buffer support side plate (20). A number of permanent magnets (38) matching the permanent magnets (37) are fixedly installed on the side of the buffer support side plate (20) close to the buffer side plate (23). The permanent magnets (37) and the permanent magnets (38) are magnets of the same polarity. The buffer elastic component (24) is composed of deformable memory metal (39) and a circular pad (40). The deformable memory metal (39) is fixedly connected to one side of the buffer side plate (23). The circular pad (40) is fixedly connected to one end of the deformable memory metal (39). The circular pad (40) is in contact with the buffer support side plate (20). The free-moving side buffer assembly (25) consists of a universal sleeve (41), a universal ball joint (42), a sliding sleeve (43), a guide rod (44), and a buffer spring (45). The universal sleeve (41) is fixedly connected to the inside of the buffer support side plate (20). The universal ball joint (42) is slidably connected to the inside of the universal sleeve (41). The sliding sleeve (43) is fixedly connected to the inside of the universal ball joint (42). One end of the guide rod (44) is fixedly connected to the buffer side pressure plate (23). The other end of the guide rod (44) is slidably inserted into the sliding sleeve (43). The buffer spring (45) is sleeved on the guide rod (44) and located between the sliding sleeve (43) and the buffer side pressure plate (23).

2. The transport device for lithium batteries according to claim 1, characterized in that: The limiting support buffer mechanism (10) consists of a central support base (13), four movable support arms (14), four roller sets (15), and four buffer springs (16). The central support base (13) is fixedly connected to the bottom end of the first buffer support base plate (6) and the second buffer support base plate (7). The movable support arms (14) are movably connected to the four sides of the central support base (13). The roller sets (15) are movably connected to the end of the movable support arm (14) away from the central support base (13) and are matched with the cross-shaped limiting groove (11). The buffer springs (16) are fixedly connected between two adjacent movable support arms (14).

3. The transport device for lithium batteries according to claim 1, characterized in that: A thickened buffer silicone pad (17) is fixedly installed at the bottom of the cover plate (5). An internal airbag (18) is fixedly installed inside the thickened buffer silicone pad (17). Both the internal airbag (18) and the buffer airbag (9) are made of memory rubber. Both ends of the internal airbag (18) and the buffer airbag (9) are provided with inlet and outlet micro-holes (19).

4. A transport device for lithium batteries according to claim 1, characterized in that: The foldable handle (4) is composed of several hollow sleeve rods (46), several movable connecting seats (47), several telescopic inner rods (48), several auxiliary support rods (49), several slide blocks (50), several slide blocks (51), and a push rod (52). The hollow sleeve rods (46) are movably connected to the transport box (1) through the movable connecting seats (47). The telescopic inner rods (48) slide through the hollow sleeve rods (46). A strip groove (53) is provided on one side of the telescopic inner rod (48). The slide blocks (50) slide inside the strip groove (53). A number of strip grooves (54) are provided on one side. The slide block (51) is slidably connected to the inside of the strip groove (54). The auxiliary support rod (49) is movably connected between the slide block (50) and the slide block (51). The push rod (52) is fixedly connected between the two telescopic inner rods (48). A locking bolt (55) matching the slide block (50) is provided on one side of the telescopic inner rod (48). An N pole magnet (56) is fixedly provided on one side of the hollow sleeve rod (46). An S pole magnet (57) matching the N pole magnet (56) is fixedly provided on one side of the auxiliary support rod (49).

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