A power supply vehicle with replaceable battery

Abstract

The application discloses a power supply vehicle with replaceable batteries, which comprises a traction part, a loading part and a battery pack arranged on the loading part. The traction part and the loading part are connected. The loading part comprises a chassis and tires arranged on the lower side of the chassis. The upper side of the chassis is provided with a container. The end of the container away from the traction part is provided with a tail door. The upper side of the container is slidably connected with a top plate. The upper side of the chassis is slidably connected with a first sliding seat. The chassis is provided with a first driving device for driving the first sliding seat to slide along the chassis. The first driving device is also used for driving the top plate to slide. The upper side of the first sliding seat is provided with a support plate. The end of the first sliding seat away from the traction part is rotatably connected with the support plate. The first sliding seat is provided with a second driving device for driving the support plate to rotate. The battery pack is detachably connected to the upper side of the support plate. When the battery pack is insufficient, the battery pack can be replaced, so that road rescue can be performed again.

Description

Technical Field

[0001] This invention relates to the field of power supply vehicle technology, and more particularly to a battery-swapping power supply vehicle. Background Technology

[0002] When a new energy vehicle is unable to drive due to a lack of power, it needs to call a power supply vehicle for emergency power. Existing power supply vehicles have a large battery pack inside, which is electrically connected to the new energy vehicle through a charging cable to charge the new energy vehicle. After the battery pack of the existing power supply vehicle is depleted, it needs to return to a charging station to recharge. Due to the large capacity of the battery pack, it often takes a long time to recharge, which greatly delays roadside assistance. Summary of the Invention

[0003] To address the shortcomings of existing power supply vehicles, such as long charging times that delay roadside assistance, this invention proposes a battery-swapping power supply vehicle. When the battery pack is low on power, roadside assistance can be resumed by replacing the battery pack.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A battery-swapping power vehicle includes a traction unit, a loading unit, and a battery pack mounted on the loading unit. The traction unit and the loading unit are connected. The loading unit includes a chassis and tires mounted on the underside of the chassis. A container is mounted on the upper side of the chassis. A tailgate is provided at the end of the container away from the traction unit. A top plate is slidably connected to the upper side of the container. A first sliding seat is slidably connected to the upper side of the chassis. The chassis is provided with a first driving device for driving the first sliding seat to slide along the chassis. The first driving device is also used to drive the top plate to slide. A support plate is provided on the upper side of the first sliding seat. The end of the first sliding seat away from the traction unit is rotatably connected to the support plate. The first sliding seat is provided with a second driving device for driving the support plate to rotate. The battery pack is detachably connected to the upper side of the support plate.

[0006] The above setup enables rapid battery swapping. The traction unit and loading unit are connected and provide driving force to the loading unit, enabling the power vehicle to move forward and backward. The container protects the battery pack from wind and rain. When battery pack replacement is needed, the tailgate is opened, and the first drive unit drives the first sliding seat to slide backward along the chassis. The first sliding seat moves the battery pack on the support plate backward. Simultaneously, the first drive unit drives the top plate forward to prevent interference between the top plate and the battery pack. Then, under the action of the second drive unit, the end of the support plate near the traction unit rotates upward 90 degrees. At this point, the support plate and battery pack extend essentially vertically, both located outside the container, with the lower end of the battery pack touching the ground. The battery pack is then removed from the support plate, and a new battery pack is installed. The second drive unit then drives the support plate to rotate in the opposite direction by 90 degrees. The first drive unit then drives the first sliding seat forward, allowing the support plate and battery pack to enter the container. Simultaneously, under the action of the first drive unit, the top plate moves backward. Finally, the tailgate is closed, completing the battery pack replacement. The new battery packs are pre-charged at charging stations and can be used directly for roadside assistance without waiting.

[0007] Furthermore, a second sliding seat is slidably connected to the upper side of the support plate, and a connecting ring is fixedly connected to the upper side of the second sliding seat. A first support column and a second support column are fixedly connected to the upper side of the support plate. A first support roller is rotatably connected to the upper end of the first support column, and a second support roller is rotatably connected to the upper end of the second support column. The battery pack abuts against the upper side of the first support roller and the upper side of the second support roller. A hook is fixedly connected to the lower side of the battery pack. The hook hooks the connecting ring from front to back. The support plate is provided with a third driving device for driving the second sliding seat to slide along the support plate.

[0008] The above setup enables quick assembly and disassembly between the support plate and the battery pack. Specifically, when changing the battery pack, after the end of the support plate near the traction unit rotates upwards by 90 degrees, the hook engages with the connecting ring from top to bottom. The battery pack is then hooked onto the connecting ring, creating a gap between the battery pack and the ground. Under the action of the third drive device, the second sliding seat moves downwards, causing the connecting ring to move downwards. As the battery pack moves downwards and comes into contact with the ground, the second sliding seat and the connecting ring continue to move downwards until the connecting ring and the hook disengage. During this process, the first support roller rolls downwards along the battery pack, and the second support roller rolls downwards along the battery pack, thus preventing damage to the battery pack. The battery pack is lifted from the ground using a crane, and then a new battery pack is placed on the ground with the hook aligned with the connecting ring. The third drive unit then drives the second sliding seat and the connecting ring to move upward. After the hook and the connecting ring are connected, the second sliding seat continues to move upward, and the battery pack leaves the ground. Then, under the action of the second drive unit, the upper end of the support plate rotates 90 degrees toward the traction unit. The first drive unit then drives the first sliding seat to move forward, allowing the support plate and the battery pack to enter the container. At the same time, under the action of the first drive unit, the top plate moves backward, and finally the tail door is closed, thus completing the battery pack replacement.

[0009] Furthermore, a cylinder is fixedly connected to one end of the container near the traction unit, a piston is slidably connected inside the cylinder, a piston rod is fixedly connected to the piston, the piston rod passes through the side wall of the container and is slidably connected to the side wall of the container, a push plate is fixedly connected to one end of the piston rod away from the piston, the end of the battery pack near the traction unit abuts against the push plate, and a pressure relief valve is provided in the cylinder.

[0010] The above setup improves the stability and safety of the battery pack. Specifically, the cylinder is filled with compressed gas at high pressure. Under this pressure, the push plate presses firmly against the battery pack, making the connection between the hook and the connecting ring more secure. During the vehicle's operation, the battery pack maintains good stability on the support plate. Furthermore, when the vehicle is rear-ended, if the rear of the battery pack is impacted, the battery pack will push the push plate forward. The push plate, through a piston rod, pushes the piston forward, compressing the compressed gas in the cylinder. This cushions the impact on the battery pack, increasing the pressure within the cylinder. When the pressure reaches the threshold of the pressure relief valve, the compressed gas is discharged from the cylinder through the valve, reducing the internal pressure and preventing excessive energy from the push plate rebounding and damaging the battery pack.

[0011] Furthermore, the first sliding seat is provided with an opening facing away from the traction unit in a clearance groove. The end of the container near the traction unit is fixedly connected to a first connecting seat and a second connecting seat. The first connecting seat is located on the side of the container near the chassis, and the second connecting seat is located on the side of the container near the top plate. The chassis is fixedly connected to a third connecting seat, which is located in the clearance groove. The first driving device includes a first pulley rotatably connected to the first connecting seat and a first drive motor connected to the first pulley. The first pulley is fixedly connected to a first synchronous pulley, and the second connecting seat is rotatably connected to a second synchronous pulley. The second synchronous pulley is fixedly connected to a drive gear. A rack is fixedly connected to the lower side of the top plate, and the rack meshes with the drive gear. The first and second synchronous pulleys are driven by a synchronous belt. The third connecting seat is rotatably connected to a second pulley, and the second pulley and the first pulley are driven by a conveyor belt. One side of the conveyor belt is connected to the first sliding seat.

[0012] The above configuration enables the sliding of the first sliding seat and the top plate. Specifically, when the first drive motor drives the first pulley to rotate, the first pulley and the first synchronous pulley rotate synchronously. The first synchronous pulley drives the second synchronous pulley to rotate via a synchronous belt. The second synchronous pulley drives the drive gear to rotate synchronously. The drive gear drives the top plate to move forward or backward via a rack. Additionally, when the first pulley rotates, it drives the second pulley to rotate via a conveyor belt, which in turn drives the first sliding seat to move forward or backward. In this application, when the first drive motor drives the first sliding seat forward (after the battery pack on the support plate has been replaced), the top plate slides backward; when the first drive motor drives the first sliding seat backward (before the battery pack on the support plate is to be replaced), the top plate slides forward.

[0013] Furthermore, a support block for supporting the support plate is fixedly connected to one end of the first sliding seat near the traction part, and a first ear plate is fixedly connected to one end of the first sliding seat away from the traction part. The first ear plate is rotatably connected to a rotating shaft, and a second ear plate is fixedly connected to the lower side of the support block. The rotating shaft passes through the second ear plate and is fixedly connected to the second ear plate. The second driving device is a geared motor connected to the rotating shaft.

[0014] The above setup achieves the connection between the support plate and the first sliding seat. The geared motor has a large power output, enabling it to stably drive the support plate to rotate.

[0015] Furthermore, there are at least two hooks, and hooks are provided at both ends of the battery pack.

[0016] Furthermore, the third driving device includes a screw that passes through the first support column and is rotatably connected to the second support column. The screw and the first support column are rotatably connected. A second drive motor is fixedly connected to the support plate. The second drive motor and the screw are connected. The screw and the second sliding seat are threadedly connected.

[0017] The above configuration enables the second sliding seat to move along the support plate. The first and second support columns stabilize the screw. When the second drive motor drives the screw to rotate, the screw and the second sliding seat rotate relative to each other, and the second sliding seat moves along the axis of the screw, thus moving along the support plate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment.

[0019] Figure 2 This is a rear view of an embodiment.

[0020] Figure 3 This is a schematic diagram of the first driving device driving the first sliding seat to move backward.

[0021] Figure 4 This is a schematic diagram of the second drive device driving the support plate to rotate.

[0022] Figure 5 This is a diagram illustrating the separation of the hook and the connecting ring.

[0023] Figure 6 This is a diagram illustrating a power supply vehicle being rear-ended. Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] See Figures 1 to 6 A battery-swapping power vehicle includes a traction unit 11, a loading unit 12, and a battery pack 13 mounted on the loading unit 12. The traction unit 11 and the loading unit 12 are connected. The loading unit 12 includes a chassis 121 and tires 122 mounted on the underside of the chassis 121. A container 123 is mounted on the upper side of the chassis 121. A tailgate 1231 is located at the end of the container 123 away from the traction unit 11. A top plate 1232 is slidably connected to the upper side of the container 123. A first sliding seat 1211 is slidably connected to the upper side of the chassis 121. 21 is provided with a first driving device 1212 for driving the first sliding seat 1211 to slide along the chassis 121. The first driving device 1212 is also used to drive the top plate 1232 to slide. A support plate 1213 is provided on the upper side of the first sliding seat 1211. The end of the first sliding seat 1211 away from the traction part 11 is rotatably connected to the support plate 1213. The first sliding seat 1211 is provided with a second driving device (not shown in the figure) for driving the support plate 1213 to rotate. The battery pack 13 is detachably connected to the upper side of the support plate 1213.

[0026] With the above settings, rapid battery swapping can be achieved. Firstly... Figure 1As shown, the front and rear sides of this application are defined. The battery pack 13 extends substantially along the longitudinal direction of the power vehicle. The traction unit 11 and the loading unit 12 are connected and used to provide driving force to the loading unit 12, enabling the power vehicle to move forward and backward. The container 123 protects the battery pack 13 and prevents it from being exposed to wind and rain. When the battery pack 13 needs to be replaced, the tailgate 1231 is opened. The first drive device 1212 drives the first sliding seat 1211 to slide backward along the chassis 121. The first sliding seat 1211 drives the battery pack 13 on the support plate 1213 to move backward. At the same time, the first drive device 1212 drives the top plate 1232 to move forward, thereby preventing interference between the top plate 1232 and the battery pack 13. See also... Figure 3 Then, under the action of the second drive device, the end of the support plate 1213 near the traction unit 11 rotates upward by 90 degrees. At this time, the support plate 1213 and the battery pack 13 extend basically vertically, and both the support plate 1213 and the battery pack 13 are located outside the container 123. The lower end of the battery pack 13 is in contact with the ground. Then, the battery pack 13 is removed from the support plate 1213, and a new battery pack 13 is installed on the support plate 1213. Then, the second drive device drives the support plate 1213 to rotate in the opposite direction by 90 degrees. Then, the first drive device 1212 drives the first sliding seat 1211 to move forward, so that the support plate 1213 and the battery pack 13 enter the container 123. At the same time, under the action of the first drive device 1212, the top plate 1232 moves backward, and finally the tailgate 1231 is closed, thus completing the replacement of the battery pack 13. The new battery pack 13 is pre-charged at the charging station and can be used directly for roadside assistance without waiting.

[0027] In one implementation, a second sliding seat 1215 is slidably connected to the upper side of the support plate 1213, and a connecting ring 12151 is fixedly connected to the upper side of the second sliding seat 1215. A first support column 12131 and a second support column 12132 are fixedly connected to the upper side of the support plate 1213. A first support roller 12133 is rotatably connected to the upper end of the first support column 12131, and a second support roller 12134 is rotatably connected to the upper end of the second support column 12132. The battery pack 13 abuts against the upper side of the first support roller 12133 and the upper side of the second support roller 12134. A hook 131 is fixedly connected to the lower side of the battery pack 13. The hook 131 hooks the connecting ring 12151 from front to back. The support plate 1213 is provided with a third driving device 1216 for driving the second sliding seat 1215 to slide along the support plate 1213.

[0028] The above setup enables quick assembly and disassembly between the support plate 1213 and the battery pack 13. Specifically, when replacing the battery pack 13, please refer to... Figure 4When the support plate 1213 rotates 90 degrees upwards near the traction part 11, the hook 131 hooks onto the connecting ring 12151 from top to bottom. That is, the battery pack 13 is hung on the connecting ring 12151 via the hook 131. At this time, there is a gap between the battery pack 13 and the ground. Then, under the action of the third drive device 1216, the second sliding seat 1215 moves downwards, causing the connecting ring 12151 to move downwards. When the battery pack 13 moves downwards and comes into contact with the ground, the second sliding seat 1215 and the connecting ring 12151 continue to move downwards until the connecting ring 12151 and the hook 131 disengage. (See [reference]). Figure 5 During this process, the first support roller 12133 rolls downward along the battery pack 13, and the second support roller 12134 rolls downward along the battery pack 13, thereby preventing the battery pack 13 from being damaged. A crane is used to lift the battery pack 13 from the ground, and then a new battery pack 13 is placed on the ground, aligning the hook 131 with the connecting ring 12151. Then, the third drive device 1216 drives the second sliding seat 1215 and the connecting ring 12151 to move upward. After the hook 131 and the connecting ring 12151 are connected... The second sliding seat 1215 continues to move upward, the battery pack 13 leaves the ground, and then under the action of the second drive device, the upper end of the support plate 1213 rotates 90 degrees toward the traction part 11. Then the first drive device 1212 drives the first sliding seat 1211 to move forward, so that the support plate 1213 and the battery pack 13 enter the container 123. At the same time, under the action of the first drive device 1212, the top plate 1232 moves backward, and finally the tail door 1231 is closed, thus completing the replacement of the battery pack 13.

[0029] In one implementation, a cylinder 1233 is fixedly connected to one end of the container 123 near the traction unit 11. A piston 1234 is slidably connected inside the cylinder 1233. A piston rod 1235 is fixedly connected to the piston 1234. The piston rod 1235 passes through the side wall of the container 123 and is slidably connected to the side wall of the container 123. A push plate 1237 is fixedly connected to one end of the piston rod 1235 away from the piston 1234. The end of the battery pack 13 near the traction unit 11 abuts against the push plate 1237. A pressure limiting valve 1236 is provided in the cylinder 1233.

[0030] The above configuration improves the stability and safety of the battery pack 13. Specifically, the cylinder 1233 is filled with compressed gas and is under high pressure. Under this pressure, the push plate 1237 presses firmly against the battery pack 13, making the connection between the hook 131 and the connecting ring 12151 more secure. During the vehicle's operation, the battery pack 13 maintains good stability on the support plate 1213. Additionally, when the vehicle is rear-ended, see... Figure 6If the rear end of the battery pack 13 is impacted at this time, the battery pack 13 will push the push plate 1237 forward. The push plate 1237 will push the piston 1234 forward through the piston rod 1235. The piston 1234 will compress the compressed gas in the cylinder 1233, thus buffering the battery pack 13. The pressure in the cylinder 1233 will increase. When the pressure increases to the threshold of the pressure relief valve 1236, the compressed gas in the cylinder 1233 will be discharged from the cylinder 1233 through the pressure relief valve 1236, thereby reducing the gas pressure in the cylinder 1233 and preventing the energy of the push plate 1237 rebound from being too great and damaging the battery pack 13.

[0031] In one implementation, the first sliding seat 1211 is provided with a clearance groove 12111 with an opening facing away from the traction unit 11. A first connecting seat 124 and a second connecting seat 125 are fixedly connected to one end of the container 123 near the traction unit 11. The first connecting seat 124 is located on the side of the container 123 near the chassis 121, and the second connecting seat 125 is located on the side of the container 123 near the top plate 1232. A third connecting seat 126 is fixedly connected to the chassis 121 and is located within the clearance groove 1211, thereby preventing interference between the first sliding seat 1211 and the third connecting seat 126 during movement. The first driving device 1212 includes a first pulley 12121 rotatably connected to the first connecting seat 124 and a drive mechanism 12122. The first drive motor (not shown in the figure) is connected to 21. The first pulley 12121 is fixedly connected to the first synchronous pulley 12122. The second connecting seat 125 is rotatably connected to the second synchronous pulley 12123. The second synchronous pulley 12123 is fixedly connected to the drive gear 12124. The rack 12321 is fixedly connected to the lower side of the top plate 1232. The rack 12321 and the drive gear 12124 mesh. The first synchronous pulley 12122 and the second synchronous pulley 12123 are driven by the synchronous belt 12125. The third connecting seat 126 is rotatably connected to the second pulley 12126. The second pulley 12126 and the first pulley 12121 are driven by the conveyor belt 12127. One side of the conveyor belt 12127 is connected to the first sliding seat 1211.

[0032] Through the above configuration, the sliding of the first sliding seat 1211 and the top plate 1232 is achieved. Specifically, when the first drive motor drives the first pulley 12121 to rotate, the first pulley 12121 and the first synchronous pulley 12122 rotate synchronously. The first synchronous pulley 12122 drives the second synchronous pulley 12123 to rotate via the synchronous belt 12125. The second synchronous pulley 12123 drives the drive gear 12124 to rotate synchronously. The drive gear 12124 drives the top plate 1232 to move forward or backward via the rack 12321. In addition, when the first pulley 12121 rotates, the first pulley 12121 drives the second pulley 12126 to rotate via the conveyor belt 12127. The conveyor belt 12127 drives the first sliding seat 1211 to move forward or backward. In this application, when the first drive motor drives the first sliding seat 1211 to move forward (the battery pack 13 on the support plate 1213 has been replaced), the top plate 1232 slides backward. When the first drive motor drives the first sliding seat 1211 to move backward (the battery pack 13 on the support plate 1213 is about to be replaced), the top plate 1232 slides forward.

[0033] In one implementation, a support block 12112 for supporting the support plate 1213 is fixedly connected to one end of the first sliding seat 1211 near the traction part 11, and a first ear plate 12113 is fixedly connected to one end of the first sliding seat 1211 away from the traction part 11. A rotating shaft 12114 is rotatably connected to the first ear plate 12113, and a second ear plate 12115 is fixedly connected to the lower side of the support block 12112. The rotating shaft 12114 passes through the second ear plate 12115 and is fixedly connected to the second ear plate 12115. The second driving device is a geared motor connected to the rotating shaft 12114.

[0034] The above configuration achieves the connection between the support plate 1213 and the first sliding seat 1211. When the support plate 1213 rotates, it rotates around the axis of the rotating shaft 12114. The geared motor has a large power and can stably drive the support plate 1213 to rotate.

[0035] As one implementation, the number of hooks 131 is at least two, and hooks 131 are provided at both ends of the battery pack 13.

[0036] In one implementation, the third drive device 1216 includes a screw 12161 that passes through the first support column 12131 and is rotatably connected to the second support column 12132. The screw 12161 and the first support column 12131 are rotatably connected. The support plate 1213 is fixedly connected to the second drive motor 12162. The second drive motor 12162 and the screw 12161 are connected. The screw 12161 and the second sliding seat 1215 are threadedly connected.

[0037] Through the above configuration, the second sliding seat 1215 moves along the support plate 1213. The first support column 12131 and the second support column 12132 are used to stabilize the screw 12161. When the second drive motor 12162 drives the screw 12161 to rotate, the screw 12161 and the second sliding seat 1215 rotate relative to each other, and the second sliding seat 1215 moves along the axis of the screw 12161, that is, the second sliding seat 1215 moves along the support plate 1213.

[0038] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A battery-swapping power vehicle, comprising a traction unit, a loading unit, and a battery pack disposed on the loading unit, wherein the traction unit and the loading unit are connected, the loading unit includes a chassis and tires disposed on the underside of the chassis, and a container is disposed on the upper side of the chassis, characterized in that, The container is provided with a tail door at the end away from the traction unit. A top plate is slidably connected to the upper side of the container. A first sliding seat is slidably connected to the upper side of the chassis. The chassis is provided with a first driving device for driving the first sliding seat to slide along the chassis. The first driving device is also used to drive the top plate to slide. A support plate is provided on the upper side of the first sliding seat. The end of the first sliding seat away from the traction unit is rotatably connected to the support plate. The first sliding seat is provided with a second driving device for driving the support plate to rotate. The battery pack is detachably connected to the upper side of the support plate. A second sliding seat is slidably connected to the upper side of the support plate, and a connecting ring is fixedly connected to the upper side of the second sliding seat. A first support column and a second support column are fixedly connected to the upper side of the support plate. A first support roller is rotatably connected to the upper end of the first support column, and a second support roller is rotatably connected to the upper end of the second support column. The battery pack abuts against the upper side of the first support roller and the upper side of the second support roller. A hook is fixedly connected to the lower side of the battery pack. The hook hooks the connecting ring from front to back. The support plate is provided with a third driving device for driving the second sliding seat to slide along the support plate. A cylinder is fixedly connected to one end of the container near the traction unit. A piston is slidably connected inside the cylinder. A piston rod is fixedly connected to the piston. The piston rod passes through the side wall of the container and is slidably connected to the side wall of the container. A push plate is fixedly connected to one end of the piston rod away from the piston. The end of the battery pack near the traction unit abuts against the push plate. A pressure relief valve is provided in the cylinder. When changing the battery pack, after the end of the support plate near the traction unit rotates upward 90 degrees, the hook engages with the connecting ring from top to bottom. At this point, there is a gap between the battery pack and the ground. Then, under the action of the third drive device, the second sliding seat moves downward, driving the connecting ring downward. When the battery pack moves downward and comes into contact with the ground, the second sliding seat and the connecting ring continue to move downward until the connecting ring and the hook disengage. The crane then lifts the battery pack off the ground, and the new battery pack is placed on the ground with the hook aligned with the connecting ring. The third drive device then drives the second sliding seat and the connecting ring upward. After the hook and the connecting ring connect, the second sliding seat continues to move upward, and the battery pack leaves the ground. Then, under the action of the second drive device, the upper end of the support plate rotates 90 degrees toward the traction unit. The first drive device then drives the first sliding seat forward, causing the support plate and the battery pack to enter the container. The cylinder is filled with compressed gas and is under high pressure. Under the action of the air pressure, the push plate presses firmly onto the battery pack, thus making the connection between the hook and the connecting ring more secure.

2. The battery-swapping power vehicle according to claim 1, characterized in that, The first sliding seat is provided with an opening facing away from the traction part, and a first connecting seat and a second connecting seat are fixedly connected to one end of the container near the traction part. The first connecting seat is located on the side of the container near the chassis, and the second connecting seat is located on the side of the container near the top plate. A third connecting seat is fixedly connected to the chassis and is located in the clearance groove. The first driving device includes a first pulley rotatably connected to the first connecting seat and a first drive motor connected to the first pulley. A first synchronous pulley is fixedly connected to the first pulley, and a second synchronous pulley is rotatably connected to the second connecting seat. A drive gear is fixedly connected to the second synchronous pulley. A rack is fixedly connected to the lower side of the top plate, and the rack meshes with the drive gear. The first synchronous pulley and the second synchronous pulley are driven by a synchronous belt. The third connecting seat is rotatably connected to a second pulley, and the second pulley and the first pulley are driven by a conveyor belt. One side of the conveyor belt is connected to the first sliding seat.

3. A battery-swapping power supply vehicle according to any one of claims 1 to 2, characterized in that, The first sliding seat has a support block fixedly connected to one end near the traction part for supporting the support plate, and a first ear plate fixedly connected to one end away from the traction part. The first ear plate is rotatably connected to a rotating shaft. A second ear plate is fixedly connected to the lower side of the support plate. The rotating shaft passes through the second ear plate and is fixedly connected to the second ear plate. The second driving device is a reduction motor connected to the rotating shaft.

4. A battery-swapping power supply vehicle according to claim 2, characterized in that, The number of hooks is at least two, and the hooks are provided at both ends of the battery pack.

5. A battery-swapping power supply vehicle according to claim 2, characterized in that, The third driving device includes a screw that passes through the first support column and is rotatably connected to the second support column. The screw is rotatably connected to the first support column. The support plate is fixedly connected to a second driving motor. The screw is threadedly connected to the second sliding seat.

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