An adjustable battery replacement battery carrying transport base

Abstract

The application belongs to the technical field of power battery transportation, and particularly relates to an adjustable power battery carrying and transporting base, which comprises a base, an extension structure and a pushing structure. The pushing structure comprises a plurality of push plates slidingly connected to the bottom of the inner cavity of the base. The plurality of push plates are respectively arranged between two push rods symmetrically distributed. The two sides of the push plate are respectively in contact with the corresponding two push rods. One pull rod is movably arranged in the six push plates. The pull rod is fixedly connected with a push block corresponding to the push plate. The push plate is provided with an inner through slot through which the push block passes. In the application, the alignment relationship between the pushing head and the avoiding through slot can be changed with the rotation of the pull rod. Only the selected pushing head can abut against the push plate when the pull rod moves. At this time, the battery positioning seat matched with the corresponding type of power battery is lifted, and the remaining pushing heads are inserted into the avoiding through slot and cannot drive the remaining battery positioning seats to move. In this way, the large, medium and small power batteries of various specifications can be matched.

Description

Technical Field

[0001] This invention belongs to the field of power battery transportation technology, and in particular relates to an adjustable battery swapping support and transportation base. Background Technology

[0002] In the field operations of electric mining trucks, fixed battery swapping depots are located in fixed positions and are difficult to move flexibly with the operation of the mining trucks. When swapping batteries, the electric mining trucks need to travel long distances to the fixed battery swapping depots to complete the battery replacement, which affects the overall operational efficiency of the mining trucks. To adapt to the working conditions where there are no fixed battery swapping depots in the field, the existing technology uses a battery swapping transport vehicle to carry the power battery to the field operation site to directly complete the battery replacement of the mining trucks, which effectively shortens the travel distance of the mining trucks for battery swapping and ensures that the mining trucks can continue to operate. However, the battery carrier base on the existing battery swapping transport vehicle has a battery positioning seat for limiting and fixing the power battery. As a fixed structure, the battery carrier base can only be adapted to a single specification and model of power battery to complete the carrying and transportation work. There are often multiple mining truck power batteries of different shapes and sizes in the mining site. When it is necessary to transfer other models and specifications of power batteries, it is necessary to replace the entire battery swapping transport vehicle or disassemble and replace the entire battery carrier base. The equipment has poor adaptability, and the operation procedures for replacing the whole vehicle or the base are cumbersome and time-consuming. This not only increases the on-site equipment investment cost, but also delays the mining truck battery swapping operation progress, making it difficult to meet the actual use needs of alternating transportation of multiple models of power batteries in the mining site. Summary of the Invention

[0003] (a) Technical problems to be solved This invention provides an adjustable battery swapping transport base to solve the problem that existing battery support bases have fixed positions and cannot be adaptively adjusted according to different models of power batteries.

[0004] (II) Technical Content To achieve the above objectives, the present invention provides the following technical solution: An adjustable battery swapping carrier and transport base includes a base and a push structure. The bottom of the inner cavity of the base is fixedly connected to a telescopic structure, which includes four hydraulic cylinders. The four hydraulic cylinders are arranged in pairs and symmetrically distributed. Each hydraulic cylinder has multiple oil chambers. A piston is slidably connected in each oil chamber. The piston divides the oil chamber into an upper oil chamber and a lower oil chamber. A battery positioning seat is fixedly connected to the top of each piston. The two symmetrically distributed hydraulic cylinders are connected to an upper pipe and a lower pipe corresponding to the piston on their adjacent sides. One end of the lower pipe is connected to the bottom of the lower oil chamber. One end of the upper pipe is connected to the top of the upper oil chamber, and the other end is connected to the pipe body of the lower pipe located on the side of the piston away from the hydraulic cylinder. A piston slides on the inner wall of the lower pipe. A push rod is fixedly connected to one end of the piston, and the other end of the push rod passes through the lower pipe. The pushing structure includes multiple push plates slidably connected to the bottom of the inner cavity of the base. Push plates are provided between two symmetrically distributed push rods, and the two sides of the push plates contact the ends of the corresponding two push rods respectively. The same pull rod is movably placed in the six push plates. The pull rod is fixed with a push block that corresponds to each push plate. The push plates are provided with an inner through groove through which the push blocks can pass.

[0005] Furthermore, it also includes a drive vehicle body, with a hollow interior and an open top. The bottom of the base is detachably mounted on the drive vehicle body, and a cover plate is detachably mounted on the top.

[0006] Furthermore, each hydraulic cylinder is equipped with three oil chambers, the upper oil chamber, the lower oil chamber, the upper pipeline, and the lower pipeline are all filled with hydraulic oil; The top of the battery positioning seat slides through the hydraulic cylinder, and the cover plate has multiple first clearance openings corresponding to the battery positioning seat.

[0007] Furthermore, two crossbeams are symmetrically fixed to the bottom of the inner cavity of the base, and the two push rods, which are symmetrically distributed, slide through the two crossbeams at their closest ends and extend between the two crossbeams. The bottom of the inner cavity of the base is provided with a dovetail groove, and the bottom of the push plate is fixed with a dovetail slider, which slides into the dovetail groove. The push plate has symmetrical inclined surfaces on both sides. The end of the push rod near the inclined surface is fixed to a roller base. A roller is rotatably connected to the roller base, and the roller makes rolling contact with the inclined surface on the same side. The pushing structure also includes a first spring sleeved on the push rod. The first spring is located between the crossbeam and the roller base, and both ends of the first spring abut against the crossbeam and the roller base, respectively.

[0008] Furthermore, two tie rod bases are fixedly connected to the bottom of the inner cavity of the base, and the two ends of the tie rod are respectively movably inserted into the two tie rod bases; The outer wall of the push block is integrally provided with a push head, and the inner groove wall is provided with two sets of avoidance grooves corresponding to the push head in a circular pattern; One set of three push heads symmetrically distributed between two hydraulic cylinders are staggered in sequence, and the corresponding three clearance slots are also staggered in sequence. When one of the push heads abuts against the corresponding push plate, the other two push heads are aligned and connected with the corresponding clearance slots. Another set of three push heads, symmetrically distributed between two hydraulic cylinders, and their corresponding three clearance slots are arranged in the reverse order of the previous set.

[0009] Furthermore, along the forward direction of the pusher plate, a second clearance opening is provided at the tail end of the pusher plate.

[0010] Furthermore, it also includes a pre-tightening structure, which includes a connecting plate fixed in the dovetail slide. Multiple connecting plates are provided and are set one-to-one with the dovetail slider. The connecting plate is located on the side of the dovetail slider close to the corresponding push head, and a tension spring is fixed between the connecting plate and the corresponding dovetail slider. The pre-tightening structure also includes an initial positioning block fixed to the bottom of the base cavity. Multiple initial positioning blocks are provided and are set one-to-one with the connecting plate. The initial positioning block is located on the side of the connecting plate close to the corresponding push head. The tension spring is in a stretched state and the connecting plate is in contact with the initial positioning block.

[0011] Furthermore, the bottom of the inner cavity of the base is provided with an inner groove, and a dovetail slide rail is fixedly connected to the bottom of the inner groove. A sliding platform is slidably arranged on the dovetail slide rail, and a brake-type servo motor is fixedly installed on the sliding platform. The output shaft of the brake-type servo motor is fixedly connected to the end of the pull rod. A hydraulic telescopic rod is also fixedly installed at the bottom of the inner groove. The hydraulic telescopic rod is located on the side of the sliding platform near the tie rod, and the telescopic end of the hydraulic telescopic rod contacts the side wall of the sliding platform.

[0012] Furthermore, multiple battery support pillars are fixed to the bottom of the inner cavity of the base. The tops of the multiple battery support pillars all penetrate the cover plate and communicate with the outside. The tops of the battery support pillars are flush with the tops of the cover plate.

[0013] Furthermore, at least one set of telescopic structures should be provided.

[0014] (III) Beneficial Effects Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the pull rod pushes the push plate to move together through the push block. While the push plate moves, it pushes the push rods on both sides of the push plate along the direction close to the corresponding hydraulic cylinder, thereby providing power to the piston. The pull rod can drive multiple push plates to work synchronously through the push block, thereby simultaneously raising multiple battery positioning seats corresponding to the power battery, so that the staff can dock with the power battery.

[0015] Second, in this invention, as the pull rod rotates, the alignment relationship between the push head and the clearance slot can be changed. When the pull rod moves, only the selected push head can abut against the push plate. At this time, the battery positioning seat that matches the corresponding model of power battery rises, and the other push heads extend into the clearance slot. There will be no action to drive the other battery positioning seats, so as to adapt to large, medium and small power batteries.

[0016] Third, in this invention, the rollers can be used to convert the sliding friction between the push rod and the push plate into rolling friction, thereby reducing the wear between the push rod and the push plate and extending the service life of the push rod and the push plate.

[0017] Fourth, in this invention, a second clearance opening is provided at the tail end of the push plate. The second clearance opening can reduce the distance between two adjacent connecting plates and also prevent the connecting plate from colliding and interfering with the adjacent connecting plate when it slides.

[0018] V. In this invention, when the push plate moves, the tension spring in the stretched state will be further stretched. When resetting, the pull rod moves in the opposite direction. At this time, the push head stops pushing the push plate, and the tension spring in the stretched state will contract, thereby pulling the push plate to reset. When the push plate is pulled to contact the initial positioning block, the push plate is reset to the initial position. After the push plate is reset, the tension spring is still in the stretched state, thereby applying a preload force to the push plate to ensure that the reset push plate will not spontaneously deviate.

[0019] VI. In this invention, the battery support column can provide auxiliary support for the bottom of the power battery, preventing the power battery from deforming the cover plate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the base and cover plate in this invention; Figure 3 for Figure 2 A magnified view of a portion of point A in the middle; Figure 4 This is a partial sectional view of the hydraulic cylinder and lower pipeline in this invention; Figure 5 This is a top view of the telescopic structure and the pushing structure in this invention; Figure 6 This is a schematic diagram of the internal structure of the base in this invention; Figure 7 for Figure 6 A magnified view of a portion of point B in the middle; Figure 8 for Figure 6 A magnified view of a portion of point C in the middle; Figure 9 This is an exploded view of the push plate and pull rod in this invention; Figure 10 This is a bottom view of the push plate and pre-tightening structure in this invention; Figure 11 This is an overall schematic diagram of the drive vehicle body carrying a large power battery in this invention; Figure 12 This is an overall schematic diagram of the drive vehicle body carrying a medium-sized power battery in this invention; Figure 13 This is an overall schematic diagram of the drive vehicle body carrying a small power battery in this invention.

[0021] In the diagram: 11. Base; 1101. First clearance opening; 1102. Dovetail groove; 1103. Inner groove; 111. Cover plate; 112. Crossbeam; 12. Drive vehicle body; 13. Tie rod base; 14. Battery support column; 21. Hydraulic cylinder; 2101. Upper oil chamber; 2102. Lower oil chamber; 211. Upper pipeline; 212. Lower pipeline; 22. Piston one; 23. Battery positioning seat; 24. Push rod; 241. Piston two; 25. 1. Roller base; 26. Roller; 27. First spring; 31. Push plate; 3101. Inner through groove; 3102. Avoidance through groove; 3103. Second avoidance opening; 311. Dovetail slider; 312. Inclined surface; 51. Pull rod; 52. Push block; 521. Push head; 61. Connecting plate; 62. Tension spring; 63. Initial positioning block; 71. Dovetail slide rail; 72. Sliding platform; 73. Brake-type servo motor; 74. Hydraulic telescopic rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1 like Figures 1-13 As shown, an adjustable battery swapping carrier transport base includes a base 11, a pushing structure, and a drive vehicle body 12. The bottom of the base 11 is detachably mounted on the drive vehicle body 12, thereby moving the base 11 via the drive vehicle body 12. Figure 1 and Figure 2 As shown, the base 11 is hollow inside and open at the top. A cover plate 111 is detachably installed on the top of the base 11. A telescopic structure is fixed to the bottom of the inner cavity of the base 11. The telescopic structure includes four hydraulic cylinders 21, which are arranged in pairs and symmetrically distributed. Figure 4 As shown, the hydraulic cylinder 21 has multiple oil chambers, and piston 22 is slidably connected to each oil chamber. Piston 22 divides the oil chamber into an upper oil chamber 2101 and a lower oil chamber 2102. Battery positioning seats 23 are fixed to the top of each piston 22. Two symmetrically distributed hydraulic cylinders 21 are connected to an upper pipe 211 and a lower pipe 212 corresponding to piston 22 on their adjacent sides. One end of the lower pipe 212 is connected to the bottom of the lower oil chamber 2102. One end of the upper pipe 211 is connected to the top of the upper oil chamber 2101, and the other end is connected to the pipe body of the lower pipe 212 located on the side of piston 241 away from the hydraulic cylinder 21. Piston 241 slides on the inner wall of the lower pipe 212. A push rod 24 is fixed to one end of piston 241, and the other end of the push rod 24 extends through the lower pipe 212. Furthermore, each hydraulic cylinder 21 is provided with three oil chambers, and the upper oil chamber 2101, the lower oil chamber 2102, the upper pipeline 211 and the lower pipeline 212 are all filled with hydraulic oil. Combination Figure 1 and Figure 2 The top of the battery positioning seat 23 slides through the hydraulic cylinder 21. The cover plate 111 has multiple first clearance openings 1101 corresponding to the battery positioning seat 23. Before installing the power battery, the staff can raise the corresponding battery positioning seat 23 according to the size and model of the power battery. By pushing the push rod 24, the push rod 24 pushes the hydraulic oil in the lower pipe 212 to the lower oil chamber 2102 through the piston 241. At this time, the hydraulic oil will push the piston 22 upward, and the piston 22 will drive the battery positioning seat 23 to move upward together. At this time, the top of the battery positioning seat 23 will pass through the first clearance opening 1101 and extend from the top of the cover plate 111 to facilitate the staff to connect with the power battery. like Figure 5 As shown, the pushing structure includes multiple push plates 31 slidably connected to the bottom of the inner cavity of the base 11. Push plates 31 are provided between two symmetrically distributed push rods 24, and the two sides of the push plates 31 are respectively in contact with the ends of the corresponding two push rods 24. The same pull rod 51 is movably placed in each of the six push plates 31. A push block 52 corresponding to each push plate 31 is fixedly connected to the pull rod 51. The push plate 31 is provided with an inner through groove 3101 through which the push block 52 can pass. During operation, by pulling the pull rod 51, the pull rod 51 pushes the push plate 31 to move together through the push block 52. While the push plate 31 is moving, it pushes the push rods 24 on both sides of it in the direction close to the corresponding hydraulic cylinder 21, thereby providing power to the piston 241. The pull rod 51 can drive multiple push plates 31 to work synchronously through the push block 52, thereby causing multiple battery positioning seats 23 corresponding to the power battery to rise synchronously at the same time.

[0024] One end of the upper pipe 211 is connected to the top of the upper oil chamber 2101, and the other end is connected to the lower pipe 212 located on the pipe body of the piston 241 away from the hydraulic cylinder 21. When the piston 241 pushes the hydraulic oil in the lower pipe 212 into the lower oil chamber 2102, the lower pipe 212 on the side of the piston 241 away from the hydraulic cylinder 21 is in a negative pressure state. At the same time, the piston 1 22 moves the battery positioning seat 23 upward and also squeezes the hydraulic oil in the upper oil chamber 2101 into the upper pipe 211. The hydraulic oil in the upper pipe 211 then flows into the lower pipe 212 on the side of the piston 241 away from the hydraulic cylinder 21, replenishing the negative pressure area with hydraulic oil and ensuring the pressure balance between the upper oil chamber 2101, the lower oil chamber 2102, the upper pipe 211, and the lower pipe 212. Furthermore, in combination Figure 2 and Figure 4 As shown, two crossbeams 112 are symmetrically fixed to the bottom of the inner cavity of the base 11. Two push rods 24 are symmetrically distributed and their close ends slide through the two crossbeams 112 and extend to the space between the two crossbeams 112. The crossbeams 112 can support and limit the push rods 24. The bottom of the inner cavity of the base 11 is provided with a dovetail slide groove 1102, and the bottom of the push plate 31 is fixedly connected with a dovetail slider 311. The dovetail slider 311 is slidably inserted into the dovetail slide groove 1102, and the push plate 31 can slide along the dovetail slide groove 1102 under the action of the dovetail slider 311. like Figure 4 and Figure 5 As shown, inclined surfaces 312 are symmetrically arranged on both sides of the push plate 31. A roller base 25 is fixed to one end of the push rod 24 near the inclined surface 312. A roller 26 is rotatably connected to the roller base 25. The roller 26 makes rolling contact with the inclined surface 312 on the same side. When the push plate 31 slides along the dovetail groove 1102, the roller 26 will gradually roll from the lower end to the higher end of the inclined surface 312. At the same time, the push plate 31 squeezes the roller 26 through the inclined surface 312, causing the roller base 25 to drive the push rod 24 to push in the direction close to the corresponding hydraulic cylinder 21. The roller 26 can convert the sliding friction between the push rod 24 and the push plate 31 into rolling friction, thereby reducing the wear between the push rod 24 and the push plate 31 and extending the service life of the push rod 24 and the push plate 31. The pushing structure also includes a first spring 27 sleeved on the push rod 24. The first spring 27 is located between the crossbeam 112 and the roller base 25, and both ends of the first spring 27 abut against the crossbeam 112 and the roller base 25, respectively. When the push plate 31 presses against the roller 26, the roller base 25 will press against the first spring 27, at which time the first spring 27 is in a compressed state. When the raised battery positioning seat 23 returns to its original position, the push plate 31 slides in the opposite direction along the dovetail groove 1102. At this time, the inclined surface 312 presses against the roller 26. When the compressive force disappears, the first spring 27, which is in a compressed state, will extend and return to its original position, and push the roller base 25, causing it to move along the direction away from the hydraulic cylinder 21 with the push rod 24. At this time, the piston 241 will squeeze the hydraulic oil in the lower pipe 212 on the side of the piston 241 away from the hydraulic cylinder 21 into the upper pipe 211, and the hydraulic oil in the upper pipe 211 will be squeezed into the upper oil chamber 2101. At this time, the piston 22 will drive the battery positioning seat 23 to move downward together, so that the battery positioning seat 23 is reset. Furthermore, such as Figure 2 and Figure 3 As shown, two tie rod bases 13 are fixedly connected to the bottom of the inner cavity of the base 11, and the two ends of the tie rod 51 are respectively movably inserted into the two tie rod bases 13; like Figures 7-9As shown, a push head 521 is integrally provided on the outer wall of the push block 52, and two sets of avoidance grooves 3102 corresponding to the push head 521 are circumferentially opened on the groove wall of the inner groove 3101. One set of three push heads 521 symmetrically distributed between two hydraulic cylinders 21 are staggered in sequence. For example, when the push head 521 on the first push block 52 is placed vertically, the push head 521 on the next push block 52 is offset by 60° in the circumferential direction, and the push head 521 on the last push block 52 is offset by 120° in the circumferential direction. The corresponding three clearance slots 3102 are also staggered in sequence. When one of the push heads 521 abuts against the corresponding push plate 31, the other two push heads 521 are aligned and connected with the corresponding clearance slots 3102. Another set of three push heads 521 and three corresponding clearance slots 3102 symmetrically distributed between the two hydraulic cylinders 21 are arranged in the reverse order of the previous set. Specifically, the power batteries are categorized into large, medium, and small models. When transporting large power batteries, the pull rod 51, through two push heads 521 at corresponding angles, simultaneously drives two sets of push plates 31 located at the edge to slide, thereby raising the corresponding four battery positioning seats 23. Figure 11 As shown, it can then be connected to a large power battery; During the sliding process, the remaining push heads 521 will move into the corresponding clearance slots 3102 along with the pull rod 51, and will not push the push plate 31, ensuring that the remaining battery positioning seats 23 will not rise and avoid interference. When transporting a medium-sized power battery, rotating the pull rod 51 will stop the two push heads 521 corresponding to the medium-sized power battery from communicating with the corresponding clearance slots 3102, and the two push heads 521 will contact the corresponding push plates 31. When the pull rod 51 moves, it will push the corresponding push plates 31 to slide through the two push heads 521, thereby raising the four corresponding battery positioning seats 23. Figure 12 As shown, it can then be connected to a medium-sized power battery; Among them, such as Figure 13 As shown, when transporting small power batteries, the adjustment method is the same as described above, and will not be repeated here.

[0025] Furthermore, along the forward direction of the pusher plate 31, such as Figure 5 and Figure 10 As shown, the push plate 31 has a second clearance opening 3103 at its tail end. The second clearance opening 3103 can reduce the distance between two adjacent connecting plates 61 and also prevent the connecting plate 61 from colliding and interfering with the adjacent connecting plate 61 when it slides.

[0026] Furthermore, such as Figures 7-10As shown, it also includes a pre-tightening structure, which includes a connecting plate 61 fixed in the dovetail slide 1102. Multiple connecting plates 61 are provided and are provided one-to-one with the dovetail slider 311. The connecting plate 61 is located on the side of the dovetail slider 311 close to the corresponding push head 521. A tension spring 62 is fixed between the connecting plate 61 and the corresponding dovetail slider 311. The pre-tightening structure also includes an initial positioning block 63 fixed to the bottom of the inner cavity of the base 11. Multiple initial positioning blocks 63 are provided and are arranged one-to-one with the connecting plate 61. The initial positioning block 63 is located on the side of the connecting plate 61 close to the corresponding push head 521. The tension spring 62 is in a stretched state and the connecting plate 61 is in contact with the initial positioning block 63. When the push plate 31 moves, the tension spring 62 in the stretched state will be further stretched. When resetting, the pull rod 51 moves in the opposite direction. At this time, the push head 521 stops pushing the push plate 31. At this time, the tension spring 62 in the stretched state will contract, thereby pulling the push plate 31 to reset. When the push plate 31 is pulled to contact the initial positioning block 63, the push plate 31 is reset to the initial position. When the push plate 31 is reset, the tension spring 62 is still in a stretched state, thereby applying a pre-tightening force to the push plate 31 to ensure that the push plate 31 will not spontaneously deviate after reset.

[0027] Furthermore, such as Figure 3 As shown, the bottom of the inner cavity of the base 11 has an inner groove 1103. A dovetail slide rail 71 is fixedly connected to the bottom of the inner groove 1103. A sliding platform 72 is slidably arranged on the dovetail slide rail 71. A brake-type servo motor 73 is fixedly installed on the sliding platform 72. The output shaft of the brake-type servo motor 73 is fixedly connected to the end of the pull rod 51. When it is necessary to adjust the rotation of the pull rod 51, the output shaft of the brake-type servo motor 73 drives the pull rod 51 to rotate, providing rotational power to the pull rod 51. After the adjustment is completed, the output shaft of the brake-type servo motor 73 stops rotating and self-locks, improving the stability of the pull rod 51 after adjustment. A hydraulic telescopic rod 74 is also fixedly installed at the bottom of the inner groove 1103. The hydraulic telescopic rod 74 is located on the side of the sliding platform 72 near the pull rod 51. The telescopic end of the hydraulic telescopic rod 74 contacts the side wall of the sliding platform 72. When the push head 521 needs to push the push plate 31, the telescopic end of the hydraulic telescopic rod 74 extends and pushes the sliding platform 72, causing the brake-type servo motor 73 fixedly installed on it to move together with the pull rod 51. When the push head 521 resets, the telescopic end of the hydraulic telescopic rod 74 retracts and resets, and the telescopic end of the hydraulic telescopic rod 74 stops pushing the sliding platform 72. At this time, the push plate 31 is pulled back to its original position under the action of the tension spring 62.

[0028] Before adjusting the battery positioning seat 23, it is necessary to ensure that no power battery is placed on the cover plate 111 to avoid interference between the battery positioning seat 23 and the power battery during the adjustment process.

[0029] Furthermore, in combination Figure 1 and Figure 2 Multiple battery support columns 14 are fixedly connected to the bottom of the inner cavity of the base 11. The tops of the multiple battery support columns 14 all penetrate the cover plate 111 and communicate with the outside. The tops of the battery support columns 14 are flush with the tops of the cover plate 111. The battery support columns 14 can provide auxiliary support for the bottom of the power battery and prevent the power battery from deforming the cover plate 111.

[0030] Furthermore, at least one set of telescopic structures should be provided, such as... Figures 11-13 As shown, three sets are preferred, and staff can choose the appropriate set according to the length of the drive vehicle body 12, the base 11, and the actual needs of a single field transport.

[0031] In summary, the workflow of this invention is as follows: Before installing the power battery, the operator can control the brake-type servo motor 73 according to the size and model of the power battery. The output shaft of the brake-type servo motor 73 drives the pull rod 51 to rotate. At this time, the two corresponding push heads 521 will stop communicating with the corresponding clearance slots 3102, and the two push heads 521 will contact the corresponding push plates 31. After adjustment, the telescopic end of the hydraulic telescopic rod 74 extends and pushes the sliding platform 72, causing the brake-type servo motor 73 fixedly installed on it to move together with the pull rod 51. At this time, the pull rod 51 will drive the two corresponding push plates 31 to slide along the dovetail slide groove 1102 through the two push heads 521. As the roller 26 moves, it gradually rolls from the lower end of the inclined surface 312 to the higher end. At the same time, the push plate 31 squeezes the roller 26 through the inclined surface 312, causing the roller base 25 to drive the push rod 24 to push along the direction close to the corresponding hydraulic cylinder 21. The push rod 24 pushes the hydraulic oil in the lower pipe 212 to the lower oil chamber 2102 through the piston 241. At this time, the hydraulic oil pushes the piston 22 upward, and the piston 22 drives the battery positioning seat 23 to move upward together. At this time, the top of the battery positioning seat 23 will pass through the first clearance opening 1101 and protrude from the top of the cover plate 111. At this time, the staff can carry out the subsequent power battery docking work.

[0032] However, as is well known to those skilled in the art, the working principles and wiring methods of the drive vehicle body 12, the brake-type servo motor 73, and the hydraulic telescopic rod 74 are commonplace and are all conventional methods or common knowledge. Therefore, they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can 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. An adjustable battery swapping support and transport base, characterized in that: The system includes a base (11) and a push structure. The bottom of the inner cavity of the base (11) is fixedly connected to a telescopic structure. The telescopic structure includes four hydraulic cylinders (21). The four hydraulic cylinders (21) are arranged in pairs and symmetrically distributed. Each hydraulic cylinder (21) has multiple oil chambers. A piston (22) is slidably connected in each oil chamber. The piston (22) divides the oil chamber into an upper oil chamber (2101) and a lower oil chamber (2102). Each piston (22) has a battery positioning seat (23) fixedly connected to its top. The two symmetrically distributed hydraulic cylinders (21) are connected to the piston on the side closest to each other. The upper pipe (211) and lower pipe (212) correspond to one (22). One end of the lower pipe (212) is connected to the bottom of the lower oil chamber (2102). One end of the upper pipe (211) is connected to the top of the upper oil chamber (2101), and the other end is connected to the pipe body of the lower pipe (212) located on the side of the piston (241) away from the hydraulic cylinder (21). The piston (241) slides on the inner wall of the lower pipe (212). One end of the piston (241) is fixedly connected to a push rod (24), and the other end of the push rod (24) passes through the lower pipe (212). The pushing structure includes multiple push plates (31) that are slidably connected to the bottom of the inner cavity of the base (11). There are push plates (31) between two symmetrically distributed push rods (24), and the two sides of the push plates (31) are in contact with the ends of the corresponding two push rods (24). The same pull rod (51) is movably placed in the six push plates (31). The pull rod (51) is fixed with a push block (52) that corresponds to the push plate (31). The push plate (31) is provided with an inner through groove (3101) through which the push block (52) can pass.

2. The adjustable battery swapping support and transport base according to claim 1, characterized in that: It also includes a drive vehicle body (12), the base (11) is hollow inside and open at the top, the bottom of the base (11) is detachably mounted on the drive vehicle body (12) and the top is detachably mounted with a cover plate (111).

3. The adjustable battery swapping support and transport base according to claim 2, characterized in that: Each of the hydraulic cylinders (21) is provided with three oil chambers, and the upper oil chamber (2101), the lower oil chamber (2102), the upper pipeline (211) and the lower pipeline (212) are all filled with hydraulic oil; The top of the battery positioning seat (23) slides through the hydraulic cylinder (21), and the cover plate (111) has multiple first clearance openings (1101) corresponding to the battery positioning seat (23).

4. The adjustable battery swapping support and transport base according to claim 3, characterized in that: The bottom of the inner cavity of the base (11) is symmetrically fixed with two crossbeams (112), and the two push rods (24) that are symmetrically distributed slide through the two crossbeams (112) and extend to the space between the two crossbeams (112) respectively. The bottom of the inner cavity of the base (11) is provided with a dovetail groove (1102), and the bottom of the push plate (31) is fixed with a dovetail slider (311), which slides into the dovetail groove (1102). The push plate (31) has symmetrical inclined surfaces (312) on both sides. The push rod (24) is fixed to a roller base (25) at one end near the inclined surface (312). A roller (26) is rotatably connected to the roller base (25). The roller (26) makes rolling contact with the inclined surface (312) on the same side. The pushing structure also includes a first spring (27) sleeved on the push rod (24). The first spring (27) is located between the crossbeam (112) and the roller base (25), and the two ends of the first spring (27) abut against the crossbeam (112) and the roller base (25) respectively.

5. The adjustable battery swapping support and transport base according to claim 4, characterized in that: Two tie rod bases (13) are fixedly connected to the bottom of the inner cavity of the base (11), and the two ends of the tie rod (51) are respectively movably inserted into the two tie rod bases (13); The outer wall of the push block (52) is integrally provided with a push head (521), and the inner through groove (3101) has two sets of avoidance through grooves (3102) in a circular pattern on the groove wall corresponding to the push head (521). One set of three push heads (521) symmetrically distributed between two hydraulic cylinders (21) are staggered in sequence, and the corresponding three clearance slots (3102) are also staggered in sequence. When one of the push heads (521) abuts against the corresponding push plate (31), the other two push heads (521) are aligned and connected with the corresponding clearance slots (3102). Another set of three push heads (521) symmetrically distributed between two hydraulic cylinders (21) and three corresponding clearance slots (3102) are arranged in the reverse order of the previous set.

6. The adjustable battery swapping support and transport base according to claim 5, characterized in that: Along the forward direction of the push plate (31), a second clearance opening (3103) is provided at the tail end of the push plate (31).

7. The adjustable battery swapping support and transport base according to claim 6, characterized in that: It also includes a pre-tightening structure, which includes a connecting plate (61) fixed in the dovetail slide (1102). Multiple connecting plates (61) are provided and are provided one-to-one with the dovetail sliders (311). The connecting plate (61) is located on the side of the dovetail slider (311) close to the corresponding push head (521). A tension spring (62) is fixed between the connecting plate (61) and the corresponding dovetail slider (311). The pre-tightening structure also includes an initial positioning block (63) fixed to the bottom of the inner cavity of the base (11). Multiple initial positioning blocks (63) are provided and are set one-to-one with the connecting plate (61). The initial positioning block (63) is located on the side of the connecting plate (61) close to the corresponding push head (521). The tension spring (62) is in a stretched state and the connecting plate (61) is in contact with the initial positioning block (63).

8. The adjustable battery swapping support and transport base according to claim 5, characterized in that: The bottom of the inner cavity of the base (11) is provided with an inner groove (1103), and a dovetail slide rail (71) is fixedly connected to the bottom of the inner groove (1103). A sliding platform (72) is slidably arranged on the dovetail slide rail (71), and a brake-type servo motor (73) is fixedly installed on the sliding platform (72). The output shaft of the brake-type servo motor (73) is fixedly connected to the end of the pull rod (51). A hydraulic telescopic rod (74) is also fixedly installed at the bottom of the inner groove (1103). The hydraulic telescopic rod (74) is located on the side of the sliding platform (72) near the tie rod (51), and the telescopic end of the hydraulic telescopic rod (74) contacts the side wall of the sliding platform (72).

9. The adjustable battery swapping support and transport base according to claim 2, characterized in that: Multiple battery support columns (14) are fixedly connected to the bottom of the inner cavity of the base (11). The tops of the multiple battery support columns (14) all penetrate the cover plate (111) and communicate with the outside. The tops of the battery support columns (14) are flush with the tops of the cover plate (111).

10. The adjustable battery swapping carrier and transport base according to any one of claims 1-9, characterized in that: At least one set of the telescopic structure shall be provided.

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