Lifting door device and battery swap station

Abstract

The invention provides a lifting door device and a battery swap station, the lifting door device comprises door frames, a door body, a driving mechanism and a transmission mechanism, the door body is installed between the door frames through the transmission mechanism, and the driving mechanism is used for driving the transmission mechanism to drive the door body to move up and down; the transmission mechanism comprises gear pairs arranged at the two ends of the moving stroke of the door body and a synchronous belt meshed with the gear pairs, the synchronous belt is connected with the door body, and a guide mechanism used for guiding is further arranged between the door body and the door frame. By using the transmission mechanism with the synchronous belt and the gear pair matched, the door body can be driven by the gear pair to controllably ascend and descend and can stay at any position in the ascending and descending process, and the potential safety hazard that when the lifting door is put down through the gravity of the lifting door, the door body possibly falls accidentally to injure people and damage equipment is avoided; and the safety and the stability are improved.

Description

Technical Field

[0001] The present invention relates to the field of battery replacement, and in particular to a lifting door device and a battery replacement station. Background Art

[0002] Charging and swapping stations for replacing or charging batteries in electric vehicles are widely used. In current charging and swapping stations, battery packs are replaced mainly by moving the battery swapping equipment back and forth between the electric vehicle and the battery compartment. However, due to the presence of the battery swapping equipment, an inlet and outlet are required between the battery compartment and the outside world, which also causes the battery compartment to be connected to the outside world. External debris, animals, and insects may enter through the inlet and outlet, causing damage to the inside of the battery compartment. At the same time, the temperature control in the battery compartment is not easy to maintain.

[0003] In existing battery swap stations, the opening and closing devices of the entrance and exit of the battery swap equipment generally use cylinders as driving devices to drive the door panels. The manufacturing cost of the cylinder and its pneumatic components is relatively high, and there may be air leakage at the air pipe or joints, which may cause unstable opening and closing of the entrance and exit of the battery swap equipment. Moreover, the cylinder as a driving device has only two postures, open and closed. Once an emergency occurs, the cylinder cannot stop operating midway. In addition, the transmission mechanism exerts unbalanced force on the lifting door, the lifting door is unstable during the lifting process, and the transmission mechanism has a relatively small activity space, which may also cause interference with other components in the battery swap station during the operation of the channel opening and closing device. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the problem that the driving device in the prior art has only two postures, open and closed. Once an emergency occurs, the cylinder cannot stop operating midway, and the transmission mechanism applies unbalanced force to the lifting door, the lifting door is unstable during the lifting process, and the transmission mechanism has a relatively small activity space. It may also cause interference defects with other components in the battery swap station during the operation of the channel opening and closing device. A lifting door device and a battery swap station are provided.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A lifting door device comprises a door frame, a door body, a driving mechanism and a transmission mechanism, wherein the door body is installed between the door frames through the transmission mechanism, and the driving mechanism is used to drive the transmission mechanism to drive the door body to move up and down;

[0007] The transmission mechanism includes a gear pair arranged at both ends of the door body's moving stroke and a synchronous belt meshing with the gear pair. The synchronous belt connects the door body. A guiding mechanism for guiding is also provided between the door body and the door frame.

[0008] In this solution, with the above structure, by using a transmission mechanism composed of a synchronous belt and a gear pair, the door body can be controllably lifted and lowered under the drive of the gear pair, and can stay at any position during the lifting and lowering process, avoiding the potential safety hazard that the lifting door may accidentally fall and injure people or damage equipment when it is lowered by its own gravity, and improving safety and stability.

[0009] Preferably, the door frame includes two longitudinal beams arranged oppositely and a cross beam connected between the tops of the two longitudinal beams. The door body is arranged between the two longitudinal beams. The side walls of the longitudinal beams adjacent to the plate surface of the door body form mounting surfaces, and the gear pair is arranged at both ends of the mounting surface along the extending direction of the longitudinal beam.

[0010] In this solution, with the above structure, the transmission mechanism is arranged on the other side of the contact surface between the door frame and the door body, improving the space utilization rate while avoiding the door body and making the overall structure more compact.

[0011] Preferably, the guiding mechanism includes a slide rail arranged on the mounting surface and a slider slidably matched with the slide rail. The slider is fixedly connected to the door body through a connecting plate;

[0012] The synchronous belt is installed on the connecting plate to drive the door body to lift and lower.

[0013] In this solution, with the above structure, by setting the guiding mechanism to limit and guide the door body, the door body can be fixed on the door frame and the lifting and lowering of the door body can be made more stable. At the same time, the slider of the guiding mechanism is connected to the door panel and the synchronous belt at the same time, making the integration of the entire lifting door device higher and the stability better.

[0014] Preferably, the guiding mechanism includes two sliders respectively connected to both ends of the door body in the vertical direction, and the synchronous belt is connected to the corresponding connecting plates of the two sliders.

[0015] In this solution, with the above structure, by arranging sliders at both ends of the door body in the vertical direction to guide the movement of the door body, and at the same time, the two sliders are respectively connected to the synchronous belt, the fixing of the door body is more firm, and the synchronous belt can also drive the door body to lift and move more stably.

[0016] Preferably, the synchronous belt is a closed loop; or,

[0017] Both ends of the synchronous belt respectively bypass the gear pairs at both ends of the moving stroke of the door body and are respectively connected to the corresponding connecting plates of the two sliders at both ends of the door body in the vertical direction.

[0018] In this solution, with the above structure, the synchronous belt can be a closed annular belt. The annular synchronous belt is directly sleeved on two gear pairs, and the door body is integrally installed on the annular synchronous belt, making the assembly more convenient. The synchronous belt can also be a non-closed synchronous belt. Its two ends respectively bypass the gear pairs and are fixedly connected to the two ends of the door body in the vertical direction. The door body fills the vacancies at both ends of the synchronous belt to form a closed annular belt. At the same time, the fixed margin of the synchronous belt can be adjusted to tighten the synchronous belt, which is convenient for assembly and adjustment, and makes the synchronous belt, gear pairs and assembly effect better.

[0019] Preferably, the number of the transmission mechanism and the guiding mechanism is two, which are respectively arranged on both sides of the moving direction of the door body;

[0020] The driving mechanism includes a motor for driving the rotation of the gear pair and a synchronous shaft for synchronizing the actions of the transmission mechanisms on both sides. The output shaft of the motor is connected to the synchronous shaft through a coupling.

[0021] In this solution, with the above structure, power is provided by a single motor, which simplifies the overall structure. And by arranging guiding mechanisms on both sides and setting a synchronous shaft connection, the fixing of the door body is more stable, and the force is more balanced during the lifting process.

[0022] Preferably, the synchronous shaft is arranged at the two ends of the corresponding side surface of the cross beam through at least two end fixing seats. The driving wheels in the gear pairs on both sides are respectively sleeved on the synchronous shaft, and the motor is arranged at any end of the synchronous shaft.

[0023] In this solution, with the above structure, by arranging the synchronous shaft at the position of the cross beam of the door frame, the space can be rationally utilized, and the synchronous shaft will not block the passage and occupy space.

[0024] Preferably, the driven wheels in the gear pairs are respectively arranged at the other ends of the longitudinal beams through mounting seats.

[0025] In this solution, with the above structure, by arranging the mounting seats fixed on the longitudinal beams and rotatably arranging the driven wheels on the mounting seats, the fixing and transmission of the driven wheels can be simply realized.

[0026] Preferably, a buffer is arranged on the side surface of the cross beam facing the door body for contacting the door body.

[0027] In this solution, with the above structure, the buffer can slow down the collision impact of the door body relative to the cross beam, absorb the kinetic energy of the door body to help the door body brake at the highest position, and avoid damage that may be caused by direct collision.

[0028] Preferably, the lifting door device further includes a position sensor fixed on the door frame, and the position sensor can detect the position of the slider on the moving path when the slider moves on the slide rail.

[0029] In this solution, with the above structure, the position of the slider can be detected to control the start and stop of the motor to achieve opening and closing of the door.

[0030] Preferably, the position sensor includes a first sensor located at a high position on the moving path of the slider and a second sensor located at a low position on the moving path of the slider.

[0031] In this solution, with the above structure, the opening and closing of the door are respectively detected and controlled.

[0032] A swapping station includes the lifting door device as described above.

[0033] In this solution, with the above structure, the lifting door device uses a transmission mechanism with a synchronous belt and a gear pair, enabling the door body to rise and fall controllably under the drive of the gear pair, and can stop at any position during the rising and falling process, avoiding potential safety hazards such as accidental dropping of the lifting door due to its own gravity, which may injure people or damage equipment, and improving safety and stability.

[0034] The positive and progressive effects of the present invention are as follows: The present invention discloses a lifting door device and a swapping station. The lifting door device uses a transmission mechanism with a synchronous belt and a gear pair, enabling the door body to rise and fall controllably under the drive of the gear pair, and can stop at any position during the rising and falling process, avoiding potential safety hazards such as accidental dropping of the lifting door due to its own gravity, which may injure people or damage equipment, and improving safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of the lifting door device according to an embodiment of the present invention.

[0036] Figure 2 It is a schematic diagram of a single - side partial structure of the lifting door device according to an embodiment of the present invention.

[0037] Figure 3 It is a schematic connection structure diagram of the door body, the slider and the synchronous belt according to an embodiment of the present invention.

[0038] Figure 4 It is a schematic connection structure diagram of the door body according to an embodiment of the present invention.

[0039] Figure 5 It is a schematic diagram of a top - part partial structure of the lifting door device according to an embodiment of the present invention.

[0040] Figure 6Schematic diagram of the partial structure at the bottom of the lifting door device according to an embodiment of the present invention.

[0041] Description of reference numerals:

[0042] Door frame 10

[0043] Longitudinal beam 11

[0044] Mounting surface 111

[0045] Cross beam 12

[0046] Buffer 121

[0047] Door body 20

[0048] Connecting plate 21

[0049] Positioning plate 22

[0050] Fixed plate 23

[0051] Guide mechanism 30

[0052] Slide rail 31

[0053] Slider 32

[0054] Transmission mechanism 40

[0055] Timing belt 41

[0056] Gear pair 42

[0057] Drive gear 421

[0058] Driven gear 422

[0059] Mounting seat 423

[0060] Drive mechanism 50

[0061] Motor 51

[0062] Synchronization shaft 52

[0063] Position sensor 60

[0064] First sensor 61

[0065] Second sensor 62

[0066] Sensor bracket 63 Detailed implementation manners

[0067] The following is a preferred embodiment and will be described in more clearly and completely in conjunction with the accompanying drawings to illustrate the present invention.

[0068] This embodiment provides a battery swapping station, which includes at least one battery compartment and an operation compartment. The battery compartment is used to store batteries and charge the batteries, and the operation compartment is used for an electric vehicle to drive in and replace the battery. The battery swapping station moves between the battery compartment and the operation compartment through battery swapping equipment to complete tasks such as transporting, installing, disassembling, and placing batteries. Due to the requirements of the battery working environment and safety, the battery compartment needs to be provided with a lifting door device to form an openable and closable passage opening. The lifting door device can close the passage opening and open the passage opening when the battery swapping equipment enters and exits the battery swapping station.

[0069] As Figure 1 shown, this embodiment provides a lifting door device, which includes a door frame 10, a door body 20, a driving mechanism 50, and a transmission mechanism 40. The door body 20 is installed between the door frames 10 through the transmission mechanism 40, and the driving mechanism 50 is used to drive the transmission mechanism 40 to drive the door body 20 to move up and down. The transmission mechanism 40 includes gear pairs 42 provided at both ends of the moving stroke of the door body 20 and a synchronous belt 41 meshing with the gear pairs 42. The synchronous belt 41 is connected to the door body 20, and a guiding mechanism 30 for guiding is further provided between the door body 20 and the door frame 10. Specifically. The lifting door device of this embodiment is a lifting type lifting door. The door frame 10 is arranged on one side of the battery compartment, and the transmission mechanism 40 for driving the door body 20 to move up and down, the driving mechanism 50 for driving the transmission mechanism 40 to move, and the guiding mechanism 30 for guiding and limiting the moving direction of the door body 20 are arranged on the door frame 10. The specific position of the transmission mechanism 40 is the gear pair 42 and the synchronous belt 41 on the door frame 10. The door body 20 is fixed to the synchronous belt 41. The driving mechanism 50 drives the gear pair 42 to rotate to drive the synchronous belt 41 to roll, thereby lifting or lowering the door body 20. By using the transmission mechanism 40 with the synchronous belt 41 and the gear pair 42, the door body 20 can be controllably raised and lowered under the drive of the gear pair 42, and can stay at any position during the rising and falling process, avoiding the safety hazard that the door body 20 may accidentally fall and injure people or damage equipment when the lifting door is lowered by its own gravity, and improving safety and stability.

[0070] As Figure 1As shown in the figure, the door frame 10 includes two longitudinals 11 arranged oppositely and a crossbeam 12 connected between the tops of the two longitudinals 11. The door body 20 is arranged between the two longitudinals 11. The side wall of the longitudinal 11 adjacent to the plate surface of the door body 20 forms an installation surface 111. The gear pair 42 is arranged at both ends of the installation surface 111 along the extending direction of the longitudinal 11. Specifically, the door body 20 is connected to the longitudinal 11 of the door frame 10. The moving direction of the door body 20 is consistent with the extending direction of the longitudinal 11. Both the transmission mechanism 40 and the guiding mechanism 30 are arranged on the longitudinal 11. Among them, the door body 20 is clamped between the two longitudinals 11. The transmission mechanism 40 is not arranged between the door body 20 and the longitudinal 11, but is arranged on the installation surface 111 adjacent to the side surface of the longitudinal 11 facing the door body 20. By arranging the transmission mechanism 40 on the other side of the contact surface between the door frame 10 and the door body 20, while avoiding the door body 20, the space utilization rate is improved and the overall structure is made more compact. In this embodiment, the transmission mechanism 40 is installed on the side facing the inside of the charging bin, so that the transmission mechanism 40 is not exposed to the outside and will not be affected by the external environment, and can operate more stably. In other embodiments, it can also be arranged at other positions.

[0071] The transmission mechanism 40 of this embodiment is as Figure 1 , Figure 2 shown. The gear pair 42 includes a driving wheel 421 and a driven wheel 422 arranged at the upper and lower positions of the longitudinal 11. The synchronous belt 41 is arranged along the extending direction of the longitudinal 11 and bypasses the driving wheel 421 and the driven wheel 422. The door body 20 is fixed at a specific position of the transmission belt. When the driving wheel 421 is driven by the driving mechanism 50 to rotate, the driving wheel 421 drives the synchronous belt 41 to rotate and then drives the driven wheel 422 to rotate. When the synchronous belt 41 rotates, the specific position fixed to the door body 20 can move between the set positions of the driving wheel 421 and the driven wheel 422. The driving wheel 421 and the driven wheel 422 jointly define the lifting and moving stroke of the door body 20.

[0072] As Figures 1 to 3 shown, the guiding mechanism 30 includes a slide rail 31 arranged on the installation surface 111 and a slider 32 slidably matched with the slide rail 31. The slider 32 is fixedly connected to the door body 20 through a connecting plate 21. The synchronous belt 41 is installed on the connecting plate 21 to drive the door body 20 to lift. Specifically, in this embodiment, the slide rail 31 is concave with a sliding groove. The slider 32 is clamped in the sliding groove of the slide rail 31 and is restricted to move only along the extending direction of the slide rail 31, so that it cannot escape from the slide rail 31 in the horizontal direction. The slider 32 is also fixed to both the door body 20 and the synchronous belt 41. So that both the transmission mechanism 40 and the guiding mechanism 30 act on the door body 20 through the slider 32. In this embodiment, the slider 32 is connected to the door body 20 through the connecting plate 21. By arranging the guiding mechanism 30 to limit and guide the door body 20, the door body 20 can be fixed on the door frame 10 and the lifting of the door body 20 can be made more stable.

[0073] The specific connection structure of the slider 32, the connecting plate 21 and the synchronous belt 41 is as Figure 3 , Figure 4 shown. One end of the connecting plate 21 covers the edge of the door body 20 and is connected to the door body 20. The other end of the connecting plate 21 extends to the mounting surface 111 of the longitudinal beam 11 and is fixed to the slider 32. The reverse side of the connecting surface between the connecting plate 21 and the slider 32 and the door body 20 is used to connect to the synchronous belt 41. A positioning plate 22 and a fixing plate 23 are provided on the back of the connecting plate 21. A through groove with a width equivalent to that of the synchronous belt 41 is provided on the positioning plate 22, and the synchronous belt 41 is clamped in the through groove. The fixing plate 23 and the connecting plate 21 are respectively connected to both sides of the positioning plate 22 to clamp the synchronous belt 41 therein for fixation. A serrated structure corresponding to the synchronous belt 41 can be provided on one side of the connecting plate 21 and the fixing plate 23, so that it can be coupled with the synchronous belt 41 to achieve better fixation. The slider 32 of the guiding mechanism 30 is connected to both the door panel and the synchronous belt 41 at the same time, making the integration degree of the entire lifting door device higher and the stability better.

[0074] As Figure 1 , Figure 2 shown, both ends of the synchronous belt 41 respectively bypass the gear pairs 42 at both ends of the moving stroke of the door body 20 and are respectively connected to the corresponding connecting plates 21 of the sliders 32 at both ends of the door body 20 in the vertical direction. In this embodiment, the synchronous belt 41 is a non-closed synchronous belt 41, and its two ends respectively bypass the gear pairs 42 and are fixedly connected to both ends of the door body 20 in the vertical direction. The door body 20 fills the gaps at both ends of the synchronous belt 41 to form a closed loop belt. At the same time, the fixing margin of the synchronous belt 41 can be adjusted to tighten the synchronous belt 41, which is convenient for assembly and adjustment, and makes the assembly effect of the synchronous belt 41 and the gear pairs 42 better.

[0075] In another embodiment, the synchronous belt 41 can also adopt a conventional closed-loop synchronous belt 41, which is directly sleeved on the two gear pairs 42 and the door body 20 is integrally installed on the annular synchronous belt 41, and the assembly is relatively convenient.

[0076] As Figure 4 shown, the guiding mechanism 30 includes two sliders 32, which are respectively connected to both ends of the door body 20 in the vertical direction, and the synchronous belt 41 is connected to the corresponding connecting plates 21 of the two sliders 32. By providing sliders 32 at both ends of the door body 20 in the vertical direction to guide the movement of the door body 20, at the same time, the two sliders 32 are also respectively connected to the synchronous belt 41, making the fixation of the door body 20 more firm, and the synchronous belt 41 can also drive the door body 20 to move up and down more stably. In other embodiments, a longer slider 32 can be provided, and the guiding effect can also be achieved.

[0077] As Figure 1 ,Figure 5 As shown in the figure, the number of the transmission mechanism 40 and the guiding mechanism 30 is two, which are respectively arranged on both sides of the moving direction of the door body 20. The driving mechanism 50 includes a motor 51 for driving the rotation of the gear pair 42 and a synchronizing shaft 52 for synchronizing the actions of the transmission mechanisms 40 on both sides. The output shaft of the motor 51 is connected to the synchronizing shaft 52 through a coupling. Specifically, in this embodiment, a set of symmetric transmission mechanism 40 and guiding mechanism 30 are arranged on the longitudinal beams 11 on both sides of the door body 20. The driving mechanism 50 is a single driving source, and the rotation of the synchronizing shaft 52 driven by a motor 51 and driving the driving wheels 421 of the two transmission mechanisms 40 is used to realize the driving of the two transmission mechanisms 40 by the motor 51. This solution can make the overall structure more compact. At the same time, power is provided by a single motor, which simplifies the overall structure. And by arranging the guiding mechanisms 30 on both sides and connecting them with the synchronizing shaft 52, the fixing of the door body 20 is more stable and the force is more balanced during the lifting process.

[0078] As Figure 5 shown in the figure, the synchronizing shaft 52 is arranged at two ends of the corresponding side surface of the cross beam 12 through at least two end fixing seats. The driving wheels 421 in the gear pairs 42 on both sides are respectively sleeved on the synchronizing shaft 52, and the motor 51 is arranged at any end of the synchronizing shaft 52. The end fixing seats protrude from the two ends of the cross beam 12 and are arranged oppositely, and the synchronizing shaft 52 is arranged on the protruding parts. In this embodiment, the motor 51 is also arranged on the end fixing seat. By arranging the synchronizing shaft 52 at the position of the cross beam 12 of the door frame 10, the space can be reasonably utilized, so that the synchronizing shaft 52 will not block the passage and occupy space.

[0079] As Figure 1 、 Figure 6 shown in the figure, the driven wheels 422 in the gear pairs 42 are respectively arranged at the other ends of the longitudinal beams 11 through the mounting seats 423. Mounting seats 423 protruding outward are arranged on the mounting surfaces 111 at the bottom ends of the longitudinal beams 11. Rotating shafts are arranged on the mounting seats 423, and the driven wheels 422 are arranged on the rotating shafts. Among them, the projections of the rotating shafts of the mounting seats 423 in the vertical direction coincide with the synchronizing shaft 52, ensuring that the transmission mechanism 40 is flush with the longitudinal beam 11. By arranging the mounting seats 423 fixed on the longitudinal beam 11 and rotatably arranging the driven wheels 422 on the mounting seats 423, the fixing and transmission of the driven wheels 422 can be simply realized.

[0080] As Figure 5As shown, a buffer member 121 is provided on the side of the cross beam 12 facing the door body 20 for contacting the door body 20. The buffer member 121 can slow down the collision impact of the door body 20 relative to the cross beam 12, absorb the kinetic energy of the door body 20 to help the door body brake at the highest position, and avoid damage that may be caused by direct collision. Specifically. The buffer member 121 can select a mechanism with a certain elasticity to absorb the impact force through elasticity. The buffer member 121 can also select a structure with a certain ductility, such as foam plastic, for energy absorption.

[0081] As Figure 1 , Figure 2 and Figure 6 As shown, the lifting door device further includes a position sensor 60. The position sensor 60 is fixed on the door frame 10, and the position sensor 60 can detect the position on the moving path of the slider 32 when it moves on the slide rail 31. The position sensor 60 can detect the position of the slider 32 to control the start and stop of the motor 51 to achieve opening and closing of the door. Specifically, as Figure 2 shown, the position sensor 60 includes a first sensor 61 located at a high position on the moving path of the slider 32 and a second sensor 62 located at a low position on the moving path of the slider 32. The first sensor 61 and the second sensor 62 are respectively arranged at the top and bottom of the longitudinal beam 11 and are used to detect whether the slider 32 is located at the starting point and the end point of the stroke of the door body 20 to control the start or stop of the motor 51, so as to achieve control of opening and closing of the door. The position sensor 60 can adopt common sensors such as an image sensor and a motion sensor, and it realizes position detection by detecting the slider 32. The position sensor 60 is fixed by a sensor bracket 63.

[0082] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An overhead door device, characterized in that, It includes a door frame, a door body, a driving mechanism and a transmission mechanism. The door body is installed between the door frames through the transmission mechanism, and the driving mechanism is used to drive the transmission mechanism to drive the door body to move up and down; The transmission mechanism includes gear pairs arranged at both ends of the moving stroke of the door body and a synchronous belt meshing with the gear pairs. The synchronous belt is connected to the door body, and a guiding mechanism for guiding is further provided between the door body and the door frame.

2. The lifting door device according to claim 1, wherein, The door frame includes two longitudinals arranged oppositely and a cross beam connected between the tops of the two longitudinals. The door body is arranged between the two longitudinals. The side wall of the longitudinal adjacent to the plate surface of the door body forms an installation surface, and the gear pairs are arranged at both ends of the installation surface along the extending direction of the longitudinal.

3. The lift gate device according to claim 2, characterized in that, The guiding mechanism includes a slide rail arranged on the installation surface and a slider slidably matched with the slide rail. The slider is fixedly connected to the door body through a connecting plate; The synchronous belt is installed on the connecting plate to drive the door body to lift.

4. The lifting door device according to claim 3, characterized in that, The guiding mechanism includes two sliders respectively connected to both ends of the door body in the vertical direction, and the synchronous belt is connected to the connecting plates corresponding to the two sliders.

5. The lift gate device according to claim 3, wherein, The synchronous belt is a closed loop; or, Both ends of the synchronous belt respectively bypass the gear pairs at both ends of the moving stroke of the door body and are respectively connected to the connecting plates corresponding to the sliders at both ends of the door body in the vertical direction.

6. The lifting door device according to claim 2, wherein, The number of the transmission mechanism and the guiding mechanism is two, which are respectively arranged on both sides of the moving direction of the door body. The driving mechanism includes a motor for driving the gear pair to rotate and a synchronous shaft for synchronizing the actions of the transmission mechanisms on both sides. The output shaft of the motor is connected to the synchronous shaft through a coupling; Preferably, the synchronous shaft is arranged at two ends of the corresponding side surface of the cross beam through at least two end fixing seats. The driving wheels in the gear pairs on both sides are respectively sleeved on the synchronous shaft, and the motor is arranged at any end of the synchronous shaft.

7. The lifting door device according to claim 2, characterized in that, The driven wheels in the gear pairs are respectively arranged at the other ends of the longitudinals through mounting seats.

8. The lifting door device according to claim 2, characterized in that, A buffer is provided on the side surface of the cross beam facing the door body for contacting the door body.

9. The lifting door device according to claim 3, wherein, The lifting door device further includes a position sensor fixed on the door frame, and the position sensor can detect the position on the moving path when the slider moves on the slide rail; Preferably, the position sensor includes a first sensor located at the high position of the moving path of the slider and a second sensor located at the low position of the moving path of the slider.

10. A battery swapping station, characterized in that, It includes the lifting door device according to any one of claims 1 to 9.

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