Multi-functional turnover vehicle

Abstract

The application discloses a kind of multifunctional turnover vehicles, including car frame seat, load-bearing plate and support column, each group of support column is hingedly arranged with multiple groups of placing plate along height direction, load-bearing plate is slidably arranged on car frame seat, car frame seat is equipped with multiple groups of elastic member for supporting load-bearing plate;Two sides of car frame seat are symmetrically provided with lower along plate, both sides lower along plate are each provided with sliding seat and driving element for driving sliding seat to slide up and down, brake roller is rotatably arranged between two sides sliding seat, one side sliding seat is equipped with multiple groups of resistance mechanism for providing resistance to brake roller, resistance mechanism is arranged along the circumferential direction of brake roller, the resistance provided by resistance mechanism located in lower position to brake roller is greater, load-bearing plate bottom is equipped with multiple groups of driving plate for driving resistance mechanism to generate resistance to brake roller, driving plate is slidably arranged on car frame seat, the present application can provide different resistance when turnover vehicle needs to brake according to the battery pack lower box of different weight carried by turnover vehicle, improve the braking stability of turnover vehicle.

Description

Technical Field

[0001] The present invention relates to a turnover vehicle, in particular to a multifunctional turnover vehicle. Background Art

[0002] Turnover carts are essential tools in everyday life and production. They can be found everywhere, from supermarket shopping carts to airports, all designed for convenience and energy conservation. They are even more essential in production, including parts delivery vehicles in machinery factories, circuit board racks in electronics factories, plastic housing storage carts, and various other tools used for the distribution of semi-finished products and the storage and transfer of finished products.

[0003] The turnover vehicle often needs to go from one workshop to another in the process of transporting the lower box of the battery box or battery box components. The adjacent workshops are separated by rolling doors. When the turnover vehicle is about to reach the rolling door, it is necessary to reserve braking distance to brake in advance. The existing turnover vehicle generally brakes by manual force, but the turnover vehicle carries different weights of battery box lower boxes. The braking distance required is different. Manual braking is not easy to control the force according to the load of the turnover vehicle. Secondly, it is not easy to reserve braking distance. It is also easily affected by the different strength of different people, resulting in unsatisfactory braking of the turnover vehicle. In severe cases, it may cause the turnover vehicle to hit the rolling door or the lower box of the battery box to slide and fall due to poor control of the brakes. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional turnover vehicle to solve the above technical problems.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a multifunctional turnover vehicle, comprising a vehicle frame seat, a load-bearing plate, and multiple groups of lower box support columns arranged on top of the load-bearing plate, the multiple groups of support columns being evenly and symmetrically distributed on both sides of the load-bearing plate, each group of support columns being hingedly provided with multiple groups of placement plates along the height direction, the load-bearing plate being slidably provided on the vehicle frame seat, and the vehicle frame seat being provided with multiple groups of elastic members for supporting the load-bearing plates;

[0006] The bottom of the frame seat is provided with a universal wheel, and the bottom of both sides of the frame seat is symmetrically provided with lower edge plates, and slides are provided in the lower edge plates on both sides to slide up and down. The frame seat is provided with a driving part for driving the slide to move up and down, and a brake roller is provided for rotation between the slides on both sides. One side of the slide is provided with multiple groups of resistance mechanisms for providing resistance to the brake roller, and the resistance mechanisms are arranged along the circumference of the brake roller. The lower the position of the resistance mechanism, the greater the resistance it provides to the brake roller. The bottom of the load-bearing plate is provided with multiple groups of driving plates for driving the resistance mechanism to generate resistance to the brake roller, and the driving plates are set on the frame seat to slide up and down.

[0007] Preferably, the placement plate is provided with a rotating shaft and a limiting shaft, a through slot is opened in the middle of the support column, the placement plate is rotatably arranged in the through slot by inserting the rotating shaft into the inner wall of the through slot, the placement plate is V-shaped, and the limiting shaft is arranged on one side of the placement plate to limit the state of the placement plate in the initial state.

[0008] Preferably, a card seat is provided on the top of the support column for engaging with another group of support columns.

[0009] Preferably, the resistance mechanism includes an outer rod, an inner rod and a driving rod, one end of the outer rod is fixed on the slide, the inner rod is slidably arranged inside the outer rod, one end of the driving rod is rotatably arranged inside the outer rod, and the other end extends to the outside of the outer rod, the inner rod is a non-circular structure, a hollow groove is provided inside the inner rod for the driving rod to rotate, a spiral groove is provided on the inner wall of the hollow groove, a guide shaft matching the spiral groove is provided on the driving rod, an annular groove is provided on the outer periphery of the brake roller, a tooth portion is provided on the inner ring wall of the annular groove, and a gear meshing with the tooth portion is provided on the end of the driving rod located outside the outer rod.

[0010] Preferably, the outer rod is provided with an inner rod groove for the inner rod to slide, the outer rod is provided with a rotating hole for the driving rod to rotate, a torsion spring is connected to the rotating connection between the driving rod and the rotating hole, an annular bracket groove is provided in the rotating hole, and an annular plate is provided on the outer wall of the driving rod to form a rotating connection with the annular bracket groove.

[0011] Preferably, the guide shaft is arranged on the driving rod for radial sliding along the driving rod, and a linkage component for driving the guide shaft to slide is provided in the driving rod, the linkage component includes a linkage rod and a first return spring, a linkage rod groove for the linkage rod to slide is axially provided in the driving rod, a groove for one end of the guide shaft to be clamped in the linkage rod, and an inclined surface for abutting the guide shaft is provided on one side of the groove, the first return spring is fixed to the inner end of the linkage rod groove and is used to abut the linkage rod, one end of the linkage rod is located outside the driving rod, and the end of the linkage rod located outside the driving rod is provided with an abutting inclined surface for abutting the driving plate.

[0012] Preferably, the driving rod is provided with a guide shaft groove for the guide shaft to slide, the inner wall of the guide shaft groove is provided with a limit groove, the guide shaft is provided with a limit plate that forms a sliding connection with the limit groove, and the guide shaft is provided with a second return spring at the limit groove for resisting the limit plate.

[0013] Preferably, each set of driving plates for abutting against the inclined surface is provided with a sinking groove, and the sinking grooves on each set of driving plates are arranged at different positions, so that only linkage rods of uniform height are pressed into the linkage rod grooves by the driving plates at a time.

[0014] Preferably, a locking groove is provided on the end side wall of the load-bearing plate, a locking block is provided for horizontal sliding in the locking groove, a screw is threadedly connected to the load-bearing plate, a socket for inserting the screw is provided on the locking block, the bottom end of the screw is a tapered end, a serrated protrusion is provided on the locking block facing the end of the lock groove opening, and a serrated groove for the serrated protrusion to be inserted into is provided on the inner wall of the frame seat.

[0015] Preferably, the lower edge plate is provided with a slide groove for the slide to slide up and down, the inner wall of the slide groove is provided with a side limit groove, the side wall of the slide is provided with a side limit rod that forms a sliding connection with the side limit groove, the outer wall of the frame seat is located at the top of the slide groove and is provided with an upper side extension plate, the top of the slide is provided with a lower side extension plate, the driving member is a cylinder fixed to the bottom of the upper side extension plate, the output end of the cylinder is fixedly connected to the lower side extension plate, the frame seat is provided with a hand push rod, the hand push rod is provided with an electric control box for controlling the cylinder, and the hand push rod is provided with a switch for starting the cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The weight of the battery pack's lower box placed on the support column controls the amount of the load-bearing plate sinking, automatically triggering the corresponding resistance mechanism to achieve dynamic matching of braking resistance and load. This fundamentally solves the problem of braking distance control caused by load differences in existing turnover vehicles and addresses the difficulty of traditional manual brakes in controlling the force according to the load. This avoids collisions or cargo drops caused by improper braking distance due to different weights, significantly improving braking stability.

[0018] By hingedly setting multiple sets of placement plates in the height direction of the support column, multiple layers of battery pack lower boxes can be placed. A snap-in seat is set on the top of the support column for segmented processing. When there are fewer battery pack lower boxes, there is no need to continue splicing the support column on the top of the snap-in seat, which reduces the height of the support column and facilitates the placement of the battery pack lower box on the placement plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0021] Figure 2 This is a schematic structural diagram of the present invention highlighting the bottom of the weekly loading vehicle;

[0022] Figure 3 yes Figure 2A magnified schematic diagram of part A;

[0023] Figure 4 It is an exploded schematic diagram highlighting the resistance mechanism of the present invention;

[0024] Figure 5 It is a cross-sectional schematic diagram highlighting the driving rod and the connecting rod of the present invention;

[0025] Figure 6 yes Figure 5 An enlarged schematic diagram of part B;

[0026] Figure 7 It is an exploded schematic diagram of the present invention highlighting the frame seat and the weighing plate;

[0027] Figure 8 It is an exploded schematic diagram highlighting the screw and the locking block of the present invention.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Frame seat; 2. Load-bearing plate; 3. Support column; 4. Placement plate; 5. Rotating shaft; 6. Limiting shaft; 7. Through slot; 8. Elastic member; 9. Universal wheel; 10. Lower edge plate; 11. Slide seat slot; 12. Side limiting slot; 13. Slide seat; 14. Side limiting rod; 15. Lower side extension plate; 16. Brake roller; 17. Annular groove; 18. Tooth; 19. Resistance mechanism; 191. Outer rod; 192. Inner rod; 193. Drive rod; 21. Inner rod slot; 22. Rotating hole; 23. Annular bracket slot; 25. Hollow slot; 26. Spiral slot; 28. Gear; 29. ​​Guide shaft 30. Guide shaft groove; 31. Limit groove; 32. Limit plate; 33. Second return spring; 34. Linkage assembly; 341. Linkage rod; 342. First return spring; 37. Groove; 38. Inclined surface; 39. Abutment inclined surface; 40. Drive plate; 41. Sinking groove; 42. Locking groove; 43. Locking block; 44. Serrated protrusion; 45. Screw; 46. Socket; 47. Serrated groove; 48. Cylinder; 49. Upper side extension plate; 50. Hand push rod; 51. Electric control box; 52. Switch; 53. Torsion spring; 54. Card seat; 56. Linkage rod groove; 57. Ring plate. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] See also Figure 1-8The present invention provides a technical solution: a multifunctional turnover vehicle, comprising a vehicle frame seat 1, a load-bearing plate 2, and multiple groups of lower box support columns 3 arranged on the top of the load-bearing plate 2, the multiple groups of support columns 3 are evenly and symmetrically distributed on both sides of the load-bearing plate 2, and each group of support columns 3 is hingedly provided with multiple groups of placement plates 4 along the height direction, the load-bearing plate 2 is slidably arranged on the vehicle frame seat 1 up and down, and the vehicle frame seat 1 is provided with multiple groups of elastic members 8 for supporting the load-bearing plate 2;

[0032] The bottom of the frame seat 1 is provided with a universal wheel 9, and the bottom of both sides of the frame seat 1 is symmetrically provided with a lower edge plate 10, and a slide 13 is provided in the lower edge plate 10 on both sides to slide up and down. The frame seat 1 is provided with a driving part for driving the slide 13 to move up and down, and a brake roller 16 is rotated between the slides 13 on both sides. One side of the slide 13 is provided with multiple groups of resistance mechanisms 19 for providing resistance to the brake roller 16. The resistance mechanisms 19 are arranged circumferentially along the brake roller 16. The lower the resistance mechanism 19 is, the greater the resistance it provides to the brake roller 16. The bottom of the load-bearing plate 2 is provided with multiple groups of driving plates 40 for driving the resistance mechanism 19 to generate resistance to the brake roller 16. The driving plates 40 are set on the frame seat 1 to slide up and down.

[0033] From the above description, it can be seen that the braking resistance can be automatically adjusted according to the load weight. The heavier the lower box of the battery pack placed on the load-bearing plate 2, the greater the braking resistance. When the inner rod 192 slides to the end of the inner rod groove 21, the brake roller 16 will be braked, which effectively improves the braking stability of the turnover vehicle and avoids collisions or cargo falling caused by inappropriate braking distance due to different load weights. At the same time, multiple groups of placement plates 4 can place items in layers to improve space utilization.

[0034] Specifically, the placement plate 4 is provided with a rotating shaft 5 and a limiting shaft 6, and a through groove 7 is opened in the middle of the support column 3. The placement plate 4 is inserted into the inner wall of the through groove 7 by the rotating shaft 5 and is rotatably set in the through groove 7. The placement plate 4 is V-shaped, and the limiting shaft 6 is set on one side of the placement plate 4 to limit the state of the placement plate 4 in the initial state.

[0035] From the above description, it can be seen that: multiple groups of placement plates 4 are placed in the height direction of the barrel groove. In the initial state, one end of the bottom V-shaped plate for placing the lower box of the battery pack is exposed, and the other end is against the upper layer of placement plate 4. When the lower box of the battery pack is placed on the bottom placement plate 4, the bottom placement plate 4 will rotate an angle to push the upper layer of placement plate 4 to rotate so that the end of the upper layer of placement plate 4 is exposed, which is convenient for placing the lower box of the next group of battery packs.

[0036] Specifically, a clamping seat 54 is provided on the top of the support column 3 for clamping and matching with another group of support columns 3.

[0037] From the above description, we can see that it is convenient to combine multiple turnover vehicles, reduce the workload of individual pushing, improve transportation efficiency, and at the same time save space during storage, which is convenient for unified management and handling.

[0038] Specifically, the resistance mechanism 19 includes an outer rod 191, an inner rod 192 and a driving rod 193. One end of the outer rod 191 is fixed on the slide 13, and the inner rod 192 is slidably arranged inside the outer rod 191. One end of the driving rod 193 is rotatably arranged inside the outer rod 191 and the other end extends to the outside of the outer rod 191. The inner rod 192 is a non-circular structure. A hollow groove 25 is provided inside the inner rod 192 for the driving rod 193 to rotate. A spiral groove 26 is provided on the inner wall of the hollow groove 25. A guide shaft 29 that cooperates with the spiral groove 26 is provided on the driving rod 193. An annular groove 17 is provided on the outer periphery of the brake roller 16. A tooth portion 18 is provided on the inner ring wall of the annular groove 17. The end of the driving rod 193 located outside the outer rod 191 is provided with a gear 28 that meshes with the tooth portion 18.

[0039] From the above description, it can be seen that: through the cooperation of the mechanical structure, the rotation of the brake roller 16 and the cooperation of the tooth portion 18, the gear 28 and the drive rod 193 are converted into the sliding resistance of the inner rod 192. The structure is compact and the transmission is stable, which can effectively provide resistance for the brake roller 16. When the inner rod 192 slides to the end of the inner rod groove 21, the rotation of the brake roller 16 is restricted, so that the brake roller 16 receives resistance for a period of time before stopping, thereby ensuring the braking effect.

[0040] Specifically, the outer rod 191 is provided with an inner rod groove 21 for the inner rod 192 to slide, and the outer rod 191 is provided with a rotating hole 22 for the driving rod 193 to rotate. A torsion spring 53 is connected to the rotation connection between the driving rod 193 and the rotating hole 22. The rotating hole 22 is provided with an annular bracket groove 23, and the outer wall of the driving rod 193 is provided with an annular plate 57 that forms a rotational connection with the annular bracket groove 23.

[0041] From the above description, it can be seen that the stability and accuracy of the movement of each component of the resistance mechanism 19 are guaranteed, and the stable operation of the components is improved; the torsion spring 53 realizes the automatic reset of the driving rod 193, and improves the reusability and response speed of the resistance mechanism 19.

[0042] Specifically, the guide shaft 29 is radially slidably arranged on the driving rod 193, and a linkage assembly 34 for driving the guide shaft 29 to slide is provided in the driving rod 193. The linkage assembly 34 includes a linkage rod 341 and a first return spring 342. A linkage rod groove 56 is axially provided in the driving rod 193 for the linkage rod 341 to slide, and a groove 37 is provided in the linkage rod 341 for one end of the guide shaft 29 to be clamped. One side of the groove 37 is provided with an inclined surface 38 for abutting against the guide shaft 29. The first return spring 342 is fixed to the inner end of the linkage rod groove 56 and is used to abut against the linkage rod 341. One end of the linkage rod 341 is located outside the driving rod 193, and the end of the linkage rod 341 located outside the driving rod 193 is provided with an abutting inclined surface 39 for abutting against the driving plate 40.

[0043] From the above description, it can be seen that the function of accurately adjusting the resistance of the resistance mechanism 19 according to the downward movement of the load-bearing plate 2 (i.e. the load-bearing weight) is realized, making the resistance adjustment more sensitive and precise; the more the driving plate 40 moves downward following the load-bearing plate 2, the driving plate 40 will be against the linkage rod 341 of the lower resistance mechanism 19, causing the guide shaft 29 on the driving rod 193 in the lower resistance mechanism 19 to slide out and cooperate with the spiral groove 26 of the inner rod 192, thereby switching the size of the resistance to the brake roller 16.

[0044] Specifically, the driving rod 193 is provided with a guide shaft groove 30 for the guide shaft 29 to slide, and a limiting groove 31 is provided on the inner wall of the guide shaft groove 30. The guide shaft 29 is provided with a limiting plate 32 that forms a sliding connection with the limiting groove 31, and the guide shaft 29 is located in the limiting groove 31 and is sleeved with a second return spring 33 for resisting the limiting plate 32.

[0045] From the above description, it can be seen that the second return spring 33 can re-hide the guide shaft 29 in the guide shaft groove 30 after the weighing plate is reset, so as to facilitate the selection of the resistance of the brake roller 16 next time.

[0046] Specifically, each set of driving plates 40 for abutting the inclined surface 39 is provided with a sinking groove 41 , and the sinking groove 41 on each set of driving plates 40 is set at a different position, so that only the linkage rod 341 of the same height is pressed into the linkage rod groove 56 by the driving plate 40 at a time.

[0047] From the above description, it can be seen that: it is ensured that under a specific load weight, only the resistance mechanism 19 with the corresponding resistance size is activated, and the outer end of the linkage rod 341 of the unactivated resistance mechanism 19 will be located in the trapped groove 41, avoiding abnormal resistance caused by the simultaneous operation of multiple resistance mechanisms 19, improving the accuracy and stability of the resistance adjustment, and ensuring that the braking effect matches the load weight.

[0048] Specifically, a locking groove 42 is provided on the end side wall of the load-bearing plate 2, and a locking block 43 is provided for horizontal sliding in the locking groove 42. A screw 45 is threadedly connected to the load-bearing plate 2, and a socket 46 for inserting the screw 45 is provided on the locking block 43. The bottom end of the screw 45 is a conical end, and the locking block 43 is provided with a serrated protrusion 44 at one end facing the opening of the locking groove 42. A serrated groove 47 for the serrated protrusion 44 to be inserted into the inner wall of the frame seat 1 is provided.

[0049] From the above description, it can be seen that after the turnover vehicle places the lower box of the battery pack, the locking block 43 is driven outward by the conical end at the bottom of the screw 45 and the serrated protrusion 44 is engaged in the serrated groove 47 to prevent the load-bearing plate 2 from shaking up and down during the movement of the turnover vehicle.

[0050] Specifically, the lower edge plate 10 is provided with a slide groove 11 for the slide 13 to slide up and down, the inner wall of the slide groove 11 is provided with a side limit groove 12, and the side wall of the slide 13 is provided with a side limit rod 14 that forms a sliding connection with the side limit groove 12. The outer wall of the vehicle frame seat 1 is located at the top of the slide groove 11 and is provided with an upper side extension plate 49, and the top of the slide 13 is provided with a lower side extension plate 15. The driving member is a cylinder 48 fixed to the bottom of the upper side extension plate 49, and the output end of the cylinder 48 is fixedly connected to the lower side extension plate 15. A hand push rod 50 is provided on the vehicle frame seat 1, and an electric control box 51 for controlling the cylinder 48 is provided on the hand push rod 50, and a switch 52 for starting the cylinder 48 is provided on the hand push rod 50.

[0051] From the above description, it can be seen that when the turnover vehicle needs to brake, the cylinder 48 drives the slide 13 to move downward, so that the brake roller 16 contacts the ground, thereby activating the resistance mechanism 19 to achieve the braking effect.

[0052] See also Figure 1-8 As shown, one embodiment of the present invention is:

[0053] The present invention relates to a multifunctional turnover vehicle, which is particularly suitable for the workshop transportation of the lower box of a battery pack.

[0054] See Figure 1The turnover vehicle mainly includes a vehicle frame seat 1, a load-bearing plate 2, a support column 3, a brake roller 16 and a linkage control system. A universal wheel 9 is installed at the bottom of the vehicle frame seat 1, and vertical support columns 3 are symmetrically provided on both sides of the top. A through slot 7 is provided in the middle of each group of support columns 3, and multiple groups of V-shaped placement plates 4 are hinged in the through slot 7 through a rotating shaft 5. A limiting shaft 6 is provided on one side of the placement plate 4. The limiting shaft 6 makes the multiple groups of placement plates 4 hidden in the through slot 7 in the initial state (except for the bottom group of placement plates 4). In the initial state, one end of the bottom placement plate 4 for placing the lower box of the battery pack leaks out, and the other end is against the upper layer placement plate 4. When the lower box of the battery pack is placed on the bottom placement plate 4, the bottom placement plate 4 will rotate an angle to push the upper layer placement plate 4 to rotate so that the end of the upper layer placement plate 4 leaks out, which is convenient for placing the lower box of the next group of battery packs.

[0055] See Figure 1 A card seat 54 is provided on the top of the support column 3 for engaging with another group of support columns 3. A card slot that cooperates with the card seat 54 is provided on the bottom of the other group of support columns 3 to achieve disassembly and stacking. When there are not too many battery pack lower boxes to be placed, the upper support column 3 can be removed to prevent the support column 3 from being too high and hindering the operator from placing the battery pack lower box on the placement plate 4.

[0056] See Figure 1 、 2 7. The load-bearing plate 2 is horizontally arranged above the vehicle frame seat 1. Its bottom is connected to the top surface of the vehicle frame seat 1 through multiple groups of elastic members 8 (such as springs), so that the load-bearing plate 2 can slide up and down with the load. Multiple groups of drive plates 40 are vertically fixed to the bottom of the load-bearing plate 2. The drive plates 40 pass through the bottom wall of the vehicle frame seat 1 and slide with it. Lower edge plates 10 are provided at the bottom of both sides of the vehicle frame seat 1. Vertical slide grooves 11 are provided inside the lower edge plates 10. Side limit grooves 12 are provided on the inner wall of the slide grooves 11. The slide 13 slides with the side limit grooves 12 through the side limit rods 14 on the side walls to achieve vertical guidance. The upper side extension plate 49 is welded to the top of the slide groove 11 on the outer wall of the vehicle frame seat 1. The lower side extension plate 15 is fixed to the top of the slide 13. The cylinder 48 is fixed to the bottom of the upper side extension plate 49. The output end of the cylinder 48 is fixedly connected to the lower side extension plate 15. The lifting and lowering are controlled by the switch 52 on the hand push rod 50.

[0057] See Figure 1-4The brake roller 16 is rotatably mounted between the two side slides 13 via bearings. Multiple resistance mechanisms 19 are fixed to one side of the slide 13 along the circumference of the brake roller 16. The lower the resistance mechanism 19, the greater the resistance it provides to the brake roller 16. Each resistance mechanism 19 comprises an outer rod 191, an inner rod 192, and a drive rod 193. One end of the outer rod 191 is fixed to the slide 13, and an inner rod groove 21 is defined within the outer rod 191 for the sliding of the inner rod 192, which has a non-circular cross-section. The inner rod 192 has a hollow groove 25 within it, which contains a spiral groove 26. One end of the drive rod 193 extends into the hollow groove 25 and engages with the spiral groove 26 via a guide shaft 29. The other end extends to the outside of the outer rod 191 and is secured to a gear 28. The inner rod 192 is located at one end of the inner rod groove 21 and has a certain interference fit with the inner rod groove 21. The surface of the brake roller 16 is provided with an annular groove 17, and the inner ring wall is processed with a tooth portion 18 that meshes with the gear 28. When braking, the cylinder 48 drives the brake roller 16 to contact the ground through the slide 13 and obtains the resistance of the resistance mechanism 19 through the cooperation of the gear 28 and the tooth portion 18. It should be noted that the magnitude of the resistance can be provided according to the magnitude of the friction between the inner rod 192 and the inner rod groove 21. The greater the friction between the inner rod 192 and the inner rod groove 21, the greater the resistance provided, or by setting the model of the torsion spring 53, the greater the torsion of the torsion spring 53, the greater the resistance provided to the friction roller, so that the inner rod 192 and the torsion spring 53 cooperate to provide the required resistance.

[0058] See Figure 1 、 4-6. A linkage rod slot 56 is axially defined within the drive rod 193 for sliding movement of the linkage rod 341. The linkage rod 341 also defines a groove 37 with an inclined surface 38. The end of the linkage rod 341, located outside the drive rod 193, is provided with an abutting inclined surface 39. A guide shaft 29 slides radially within the guide shaft slot 30 of the drive rod 193. The guide shaft 29 is retained on the drive rod 193 by a second return spring 33 and a stop plate 32. The inner end of the guide shaft 29 engages the groove 37 and is propelled to extend and retract by the inclined surface 38. The lengths of the multiple groups of drive plates 40 at the bottom of the bearing plate 2 are different, and each group of drive plates 40 is provided with a sinking groove 41. Only when the portion of the drive plate 40 not provided with the sinking groove 41 abuts against the inclined surface 39 can the guide shaft 29 be driven through the linkage rod 341. One end of the guide shaft 29 is located outside the drive rod 193 and cooperates with the spiral groove 26 to trigger the corresponding resistance mechanism 19. For example: when the resistance mechanism 19 matching the load-bearing weight of the bearing plate 2 needs to provide resistance, the portion of the corresponding drive plate 40 not provided with the sinking groove 41 will abut against the linkage rod 341 through the inclined surface 39, driving the linkage rod 341 to slide into the linkage rod groove 56 and push the guide shaft through the inclined surface 38. One end of 29 is pushed out to the outside of the driving rod 193 and inserted into the spiral groove 26. When the friction roller brakes, the inner rod 192 in the corresponding resistance assembly will slide to provide resistance. The other resistance mechanisms 19 provide resistance only through the torsion of the torsion spring 53. It should be noted that the width of the groove 41 allows one end of the linkage rod 341 to rotate inside to avoid jamming when the driving rod 193 rotates. It should also be noted that the surface of the brake roller 16 can be made of rubber material to increase the braking effect. In addition, when the load-bearing plate 2 moves down to drive the driving plate 40 to cooperate with the linkage rod 341, the distance to which the brake roller 16 contacts the ground must be considered.

[0059] See Figure 7 、 8 A locking groove 42 is provided on the side wall of the end of the load-bearing plate 2, and a locking block 43 is horizontally slidably set in the locking groove 42. A serrated protrusion 44 is provided on one side of the locking block 43, and a socket 46 is provided on the locking block 43. The screw 45 is threadedly connected to the load-bearing plate 2, and its tapered end is inserted into the socket 46. After all the battery packs are placed on the pillar, by rotating the screw 45 so that the cylindrical outer wall of the screw 45 fits with the socket 46, the serrated protrusion 44 will be snapped into the serrated groove 47 on the inner wall of the vehicle frame seat 1, preventing the load-bearing plate 2 from shaking up and down during the movement of the turnover vehicle. When the limit needs to be released, it is only necessary to position the tapered end of the screw 45 in the socket 46.

[0060] See Figure 1-8The operating process of this device is as follows: After the battery pack lower box is placed on the support column on the load-bearing plate 2, the load-bearing plate 2 compresses the elastic member 8 and sinks, causing the drive plate 40 to move downward synchronously. The drive plate 40 drives the linkage rod 341 of the corresponding resistance mechanism 19 to slide into the linkage rod groove 56. The movement of the linkage rod 341 drives the guide shaft 29 of the corresponding resistance mechanism 19 to insert into the spiral groove 26 of the inner rod 192. After all battery packs are placed on the support column, the serrated protrusion 44 will be locked into the serrated groove 47 on the inner wall of the vehicle frame seat 1 by rotating the screw rod 45 so that the cylindrical outer wall of the screw rod 45 mates with the insertion hole 46, thereby preventing the load-bearing plate 2 from shaking up and down during the movement of the turnover vehicle.

[0061] When the turnover vehicle needs to brake, the switch 52 is pressed to start the cylinder 48, and the cylinder 48 pushes the slide 13 downward to make the brake roller 16 contact the ground. The inertia of the turnover vehicle drives the brake roller 16 to rotate. The rotation of the brake roller 16 will drive the drive rod 193 to rotate through the cooperation of the tooth portion 18 and the gear 28, so that the drive rod 193 extending from one end of the guide shaft 29 drives the inner rod 192 to slide. In this process, the torsion force of the deformation of the torsion spring 53 and the friction force generated by the sliding of the inner rod 192 will produce resistance to the brake roller 16. When the brake roller 16 is subjected to resistance, the speed of the turnover vehicle will be reduced. When the inner rod 192 slides to the end of the inner rod groove 21 and abuts against the inner wall of the inner rod groove 21, the drive rod 193 will not be able to rotate, thereby locking the brake roller 16 through the cooperation of the gear 28 and the tooth portion 18, and stopping the turnover vehicle, thereby achieving the effect of first slowing down the turnover vehicle and then stopping it. When the turnover vehicle needs to continue moving, it only needs to start the cylinder 48 again through the switch 52 to drive the slide 13 to move up and make the brake roller 16 leave the ground.

[0062] After the brake roller 16 leaves the ground, the torsion spring 53 resets the drive rod 193 and causes the inner rod 192 to slide back to the initial position for use during the next brake operation.

[0063] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0064] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0065] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional turnover vehicle, characterized by: The vehicle frame comprises a vehicle frame seat (1), a load-bearing plate (2), and a plurality of groups of lower box support columns (3) arranged on the top of the load-bearing plate (2), wherein the plurality of groups of support columns (3) are evenly and symmetrically distributed on both sides of the load-bearing plate (2), and each group of support columns (3) is hingedly provided with a plurality of groups of placement plates (4) along the height direction, and the load-bearing plate (2) is slidably arranged on the vehicle frame seat (1) up and down, and the vehicle frame seat (1) is provided with a plurality of groups of elastic members (8) for supporting the load-bearing plate (2); The bottom of the vehicle frame seat (1) is provided with a universal wheel (9), and the bottom of both sides of the vehicle frame seat (1) is symmetrically provided with a lower edge plate (10), and a slide seat (13) is provided in the lower edge plate (10) on both sides to slide up and down. The vehicle frame seat (1) is provided with a driving member for driving the slide seat (13) to move up and down, and a brake roller (16) is provided to rotate between the slide seats (13) on both sides. A plurality of groups of resistance mechanisms (19) for providing resistance to the brake roller (16) are provided on one side of the slide seat (13). The resistance mechanisms (19) are arranged along the circumference of the brake roller (16). The lower the resistance mechanism (19) is, the greater the resistance provided to the brake roller (16). The bottom of the load-bearing plate (2) is provided with a plurality of groups of driving plates (40) for driving the resistance mechanism (19) to generate resistance to the brake roller (16). The driving plate (40) is slidably provided on the vehicle frame seat (1); The resistance mechanism (19) includes an outer rod (191), an inner rod (192) and a driving rod (193), wherein one end of the outer rod (191) is fixed on the slide seat (13), and the inner rod (192) is slidably arranged inside the outer rod (191). One end of the driving rod (193) is rotatably arranged inside the outer rod (191) and the other end extends to the outside of the outer rod (191). The inner rod (192) is a non-circular structure, and a driving rod is provided inside the inner rod (192). A hollow groove (25) in which the rod (193) rotates, a spiral groove (26) is provided on the inner wall of the hollow groove (25), a guide shaft (29) is provided on the driving rod (193) and matches the spiral groove (26), an annular groove (17) is provided on the outer periphery of the brake roller (16), a tooth portion (18) is provided on the inner ring wall of the annular groove (17), and a gear (28) is provided on one end of the driving rod (193) located outside the outer rod (191) and meshed with the tooth portion (18); The outer rod (191) is provided with an inner rod groove (21) for the inner rod (192) to slide, and the outer rod (191) is provided with a rotation hole (22) for the driving rod (193) to rotate. A torsion spring (53) is connected to the rotation connection between the driving rod (193) and the rotation hole (22). An annular bracket groove (23) is provided in the rotation hole (22). An annular plate (57) is provided on the outer wall of the driving rod (193) to form a rotation connection with the annular bracket groove (23).

2. A multifunctional turnover vehicle according to claim 1, characterized in that: The placement plate (4) is provided with a rotating shaft (5) and a limiting shaft (6), a through slot (7) is provided in the middle of the support column (3), and the placement plate (4) is inserted into the inner wall of the through slot (7) through the rotating shaft (5) and is rotatably arranged in the through slot (7). The placement plate (4) is V-shaped, and the limiting shaft (6) is arranged on one side of the placement plate (4) and is used to limit the state of the placement plate (4) in the initial state.

3. The multifunctional turnover vehicle according to claim 2, characterized in that: A clamping seat (54) is provided on the top of the support column (3) for clamping and matching with another group of support columns (3).

4. The multifunctional turnover vehicle according to claim 1, characterized in that: The guide shaft (29) is radially slidably arranged on the drive rod (193). A linkage assembly (34) for driving the guide shaft (29) to slide is provided in the drive rod (193). The linkage assembly (34) includes a linkage rod (341) and a first return spring (342). A linkage rod groove (56) for sliding the linkage rod (341) is axially provided in the drive rod (193). A groove (37) for one end of the guide shaft (29) to be inserted into the linkage rod (341) is provided in the linkage rod (341). One side of the groove (37) is provided with an inclined surface (38) for abutting against the guide shaft (29). The first return spring (342) is fixed to the inner end of the linkage rod groove (56) and is used to abut against the linkage rod (341). One end of the linkage rod (341) is located outside the drive rod (193). The end of the linkage rod (341) located outside the drive rod (193) is provided with an abutting inclined surface (39) for abutting against the drive plate (40).

5. The multifunctional turnover vehicle according to claim 4, characterized in that: The driving rod (193) is provided with a guide shaft groove (30) for the guide shaft (29) to slide, and a limiting groove (31) is provided on the inner wall of the guide shaft groove (30). The guide shaft (29) is provided with a limiting plate (32) that is slidably connected to the limiting groove (31), and the guide shaft (29) is provided with a second return spring (33) located at the limiting groove (31) for resisting the limiting plate (32).

6. The multifunctional turnover vehicle according to claim 4, characterized in that: Each set of driving plates (40) for contacting the inclined surface (39) is provided with a sinking groove (41), and the sinking groove (41) on each set of driving plates (40) is arranged at a different position so that only the linkage rods (341) of the same height are pressed into the linkage rod groove (56) by the driving plates (40) at one time.

7. The multifunctional turnover vehicle according to claim 1, characterized in that: A locking groove (42) is provided on the side wall of the end of the load-bearing plate (2), a locking block (43) is provided in the locking groove (42) for horizontal sliding, a screw rod (45) is threadedly connected to the load-bearing plate (2), a socket (46) for inserting the screw rod (45) is provided on the locking block (43), the bottom end of the screw rod (45) is a tapered end, a serrated protrusion (44) is provided on the end of the locking block (43) facing the opening of the locking groove (42), and a serrated groove (47) for the serrated protrusion (44) to be inserted is provided on the inner wall of the frame seat (1).

8. The multifunctional turnover vehicle according to claim 1, characterized in that: The lower edge plate (10) is provided with a slide groove (11) for the slide (13) to slide up and down, the inner wall of the slide groove (11) is provided with a side limit groove (12), the side wall of the slide (13) is provided with a side limit rod (14) that forms a sliding connection with the side limit groove (12), the outer wall of the vehicle frame seat (1) is located at the top of the slide groove (11) and is provided with an upper side extension plate (49), the top of the slide (13) is provided with a lower side extension plate (15), the driving member is a cylinder (48) fixed to the bottom of the upper side extension plate (49), the output end of the cylinder (48) is fixedly connected to the lower side extension plate (15), the vehicle frame seat (1) is provided with a hand push rod (50), the hand push rod (50) is provided with an electric control box (51) for controlling the cylinder (48), and the hand push rod (50) is provided with a switch (52) for starting the cylinder (48).

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