Lifting door device and battery swap station

Abstract

The invention discloses a lifting door device and a battery replacing station. The lifting door device comprises a door frame, a door body, a driving mechanism, a transmission mechanism and a counterweight part, the door body is arranged in the door frame in a lifting and moving mode, the transmission mechanism is connected between the door body and the balance weight part, the driving mechanism is arranged above the door body and connected to the transmission mechanism, and the driving mechanism drives the door body to move up and down in the vertical direction. According to the lifting door device and the battery replacing station, the driving mechanism is arranged above the door body, and occupation of the driving mechanism on the peripheral space of the lifting door can be reduced. The overall width of the lifting door device is reduced, the overall integration degree and the space utilization rate are improved, by arranging the balance weight part, the power requirement for the driving mechanism can be reduced, and therefore the size of the driving mechanism is reduced, and the space utilization rate is increased.

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 battery swap equipment entrance and exit passages generally have the drive device set on the side, and the door body is pulled by a longitudinally arranged transmission mechanism. The drive mechanism needs to be able to lift the door body, and its driving force has certain requirements. Therefore, it is large in size and occupies more side space, which makes the overall horizontal space utilization of the lifting door low, the integration is poor, and it will also affect the layout of other components in the battery swap station, and the economic efficiency is poor. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art that the overall lateral space utilization rate of the lifting door is low, the integration is poor, the layout of other components in the battery swap station is affected, and the economy is poor, and 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, a transmission mechanism and a counterweight;

[0007] The door body can be lifted and moved in the door frame, the transmission mechanism is connected between the door body and the counterweight part, the drive mechanism is arranged above the door body and connected to the transmission mechanism, and the drive mechanism drives the door body to move up and down in the vertical direction.

[0008] In this solution, the above structure is adopted, and the driving mechanism is arranged above the door body, which can reduce the encroachment of the driving mechanism on the space around the lifting door. The overall width of the lifting door device is reduced, and the overall integration and space utilization are improved. By setting the counterweight part, the power requirement for the driving mechanism can be reduced, and the volume of the driving mechanism can be reduced, thereby increasing the space utilization.

[0009] Preferably, the transmission mechanism includes a chain and two gears. The two gears are respectively arranged above the central positions of the lifting and moving of the door body and the counterweight part. The chain meshes with the two gears and extends to be connected to the door body and the counterweight part. The driving mechanism is connected to the area of the chain between the two gears.

[0010] In this solution, with the above structure, the driving mechanism can convert its driving force from any direction into the ability to lift or lower the door body and the counterweight part vertically through the gears and the chain, so that the driving mechanism can be set in a suitable position. The chain extends horizontally, enabling the driving mechanism to be arranged horizontally above the door body, thereby reducing the occupation of the space around the lifting door by the driving mechanism.

[0011] Preferably, the door frame includes two longitudinal beams, a cross beam connecting the two longitudinal beams at the top surface, and a mounting rod arranged parallel to the cross beam and higher than the highest position of the rising door body. The mounting rod is used to mount the driving mechanism and the gear above the door body.

[0012] In this solution, with the above structure, the mounting rod can provide a mounting space for the driving mechanism and the transmission mechanism, increasing the mounting strength of the driving mechanism and the transmission mechanism. And it does not affect the lifting of the door body.

[0013] Preferably, the longitudinal beam of the door frame close to the counterweight part is provided with an outwardly extending mounting bracket, and the mounting bracket is used to mount the gear corresponding to the counterweight part.

[0014] In this solution, with the above structure, by setting the mounting bracket, the gear corresponding to the counterweight part can be set outside the longitudinal beam, thereby providing a setting space for the counterweight part and enabling the counterweight part not to be interfered by the longitudinal beam.

[0015] Preferably, a first guide rail and a first slider slidably matched with the first guide rail are arranged on one side of the mounting rod facing the chain. The chain is fixed to the first slider, and the power output end of the driving mechanism is connected to the first slider, thereby driving the door body to lift and move.

[0016] In this solution, with the above structure, the mounting bracket is provided with the first guide rail and the first slider. The first slider is fixed to the chain and serves as the power connection point of the chain. The first guide rail can play a role in limiting and guiding the movement of the first slider.

[0017] Preferably, the driving mechanism includes an electric push rod that can be telescoped in the horizontal direction. The extending end of the electric push rod is the power output end and is connected to the transmission mechanism.

[0018] In this solution, the above structure is adopted, and the electric push rod is more economical and more stable and accurate when driving.

[0019] Preferably, the counterweight portion is cylindrical; and / or,

[0020] The weight of the counterweight is the same as the weight of the door body.

[0021] In this solution, the above structure is adopted. Compared with the polygon, the cylindrical shape can reduce the invasion of the counterweight block on the space around the lifting door to a certain extent. At the same time, the cylindrical shape is easier to maintain balance, which can make the lifting of the door body more stable. The weight of the counterweight part is the same as the weight of the door body, so that the transmission mechanism can be balanced and remain stationary when it is only affected by the weight of the counterweight part and the door body without external force, so that the driving mechanism can achieve the lifting effect by applying a small force to break the force balance state of the transmission mechanism, reducing the demand for driving force, and can reduce the cost of the driving mechanism, which is more economical.

[0022] Preferably, the counterweight part is also provided with a counterweight guide part, the counterweight guide part is fixed to the door frame, the counterweight guide part extends in a vertical direction, and the counterweight part is movably connected to the counterweight guide part and moves along the extension direction of the counterweight guide part.

[0023] In this solution, the above structure is adopted to further avoid adverse situations caused by accidental shaking of the counterweight.

[0024] Preferably, the counterweight portion is provided with a through hole, the counterweight guide portion comprises a guide column, and the counterweight portion is inserted through the through hole on the guide column.

[0025] In this solution, the above structure is adopted, which can conveniently realize the guidance of the counterweight part without occupying additional lateral space of the lifting door.

[0026] Preferably, it also includes a guiding mechanism, which includes a guiding groove and a guiding block, the guiding groove is arranged on the longitudinal beam, the guiding block is fixed to the door body, the guiding groove extends along the movement direction of the door body, the guiding block is clamped in the guiding groove and can slide along the guiding groove, the guiding groove is staggered with the door body on the surface of the longitudinal beam, and the guiding block is connected to the inner surface of the door body.

[0027] In the present solution, the above-mentioned structure is adopted, and the guide groove is arranged on the longitudinal beam and staggered with the door body, so that the guide block does not need to be arranged between the side of the door body and the longitudinal beam, but can be directly arranged on the inner surface of the door body so that it overlaps with the door body in the length direction of the door body. Compared with directly setting the guide block in the middle of the door frame and the door body, the overall width of the door frame can be reduced to a certain extent.

[0028] Preferably, a reinforcing part is arranged inside the door body. The reinforcing part is longitudinally arranged inside the door body to support the door body. A reinforcing plate is arranged at the bottom of the reinforcing part. One end of the reinforcing plate is connected to the side surface of the reinforcing part, and the other end of the reinforcing plate is connected to the bottom surface of the door body.

[0029] In this solution, with the above structure, the reinforcing part is arranged inside the door body to longitudinally support the door body, and the reinforcing plate further strengthens the strength of the door body.

[0030] A swapping station includes the lifting door device as described above.

[0031] In this solution, with the above structure, the driving mechanism of the lifting door device of the swapping station is arranged above the door body, which can reduce the occupation of the space around the lifting door by the driving mechanism, reduce the overall width of the lifting door device, improve the overall integration and space utilization rate. By setting the counterweight part, the power requirement for the driving mechanism can be reduced, thereby reducing the volume of the driving mechanism and further increasing the space utilization rate.

[0032] 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 driving mechanism of the lifting door device is arranged above the door body, which can reduce the occupation of the space around the lifting door by the driving mechanism, reduce the overall width of the lifting door device, improve the overall integration and space utilization rate. By setting the counterweight part, the power requirement for the driving mechanism can be reduced, thereby reducing the volume of the driving mechanism and increasing the space utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic structural diagram of the lifting door device of this embodiment.

[0034] Figure 2 It is a partial top structural diagram of the lifting door device of this embodiment.

[0035] Figure 3 It is a partial side structural diagram of the lifting door device of this embodiment.

[0036] Figure 4 It is a schematic structural diagram of the counterweight part of the lifting door device of this embodiment.

[0037] Figure 5 It is a schematic structural diagram of the transmission mechanism of the lifting door device of this embodiment.

[0038] Figure 6 It is a partial structural diagram of the connection part between the door body and the door frame of the lifting door device of this embodiment.

[0039] Figure 7 It is a partial structural diagram of the door body of the lifting door device of this embodiment.

[0040] Description of the reference numerals in the drawings:

[0041] Door frame 10

[0042] Longitudinal beam 11

[0043] Mounting surface 111

[0044] Cross beam 12

[0045] Door body 20

[0046] Connecting part 21

[0047] Reinforcing part 22

[0048] Reinforcing plate 23

[0049] Cavity 24

[0050] Protruding part 241

[0051] Guide mechanism 30

[0052] Guide groove 31

[0053] Guide block 32

[0054] Transmission mechanism 40

[0055] Chain 41

[0056] Gear 42

[0057] Mounting rod 43

[0058] Mounting bracket 44

[0059] First guide rail 431

[0060] First slider 432

[0061] Drive mechanism 50

[0062] Electric push rod 51

[0063] Power output end 52

[0064] Counterweight part 60

[0065] Guide post 61

[0066] Through hole 62 Specific implementation mode

[0067] The present invention will be further described below by way of examples, but the present invention is not limited to the scope of the described examples.

[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 uses battery swapping equipment to move between the battery compartment and the operation compartment and complete tasks such as transporting, installing, disassembling, and placing the battery. Due to the requirements of the battery working environment and safety, a lifting door device needs to be set up in the battery compartment 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, a transmission mechanism 40, and a counterweight part 60. The door body 20 is movably arranged in the door frame 10 in a lifting manner. The transmission mechanism 40 is connected between the door body 20 and the counterweight part 60. The driving mechanism 50 is arranged above the door body 20 and connected to the transmission mechanism 40, and the driving mechanism 50 drives the door body 20 to move up and down in the vertical direction. Specifically, the lifting door device in this embodiment is a lifting type lifting door. The door frame 10 is arranged on one side of the battery compartment. The transmission mechanism 40 for driving the door body 20 to move up and down and the driving mechanism 50 for driving the transmission mechanism 40 to move are arranged on the door frame 10. Both the transmission mechanism 40 and the driving mechanism 50 are arranged above the door body 20, above the highest position of the movement of the door body 20. The driving mechanism is arranged above the door body 20, which can reduce the occupation of the space around the lifting door by the driving mechanism 50. The overall width of the lifting door device is reduced, and the overall integration degree and space utilization rate are improved. The transmission mechanism 40 is horizontally arranged, and the counterweight part 60 and the door body 20 are respectively suspended at both ends in the horizontal direction. The driving mechanism 50 drives the transmission mechanism 40 to move horizontally to lift or lower the door body 20. The counterweight part 60 and the door body 20 are respectively connected to both ends of the transmission mechanism 40 to offset the weight of the door body 20 by their own weights, reduce the driving force requirement of the driving mechanism 50, so that the driving mechanism 50 only needs to apply a small force to lift the door body 20, and thus the volume of the driving mechanism 50 can be reduced, and the lifting door device is more compact.

[0070] As Figure 2 、 Figure 4As shown, the transmission mechanism 40 includes a chain 41 and two gears 42. The two gears 42 are respectively arranged above the central positions of the lifting movements of the door body 20 and the counterweight portion 60. The chain 41 meshes with the two gears 42 and extends to be connected to the door body 20 and the counterweight portion 60. The driving machine portion is connected to the area of the chain 41 between the two gears 42. Specifically, the chain 41 of the transmission mechanism 40 is horizontally arranged, and gears 42 are arranged at both ends in its horizontal direction. The gears 42 are respectively arranged directly above the counterweight portion 60 and directly above the door body 20. The chain 41 then bypasses the gears 42 and extends vertically downward and is respectively connected to the counterweight portion 60 and the door body 20. The chain 41 can reciprocate in the horizontal direction, thereby lifting or lowering the door body 20. In this embodiment, the gears 42 are both directly above the counterweight portion 60 and directly above the center of gravity direction of the door body 20, which is the most labor-saving. In other embodiments, the gears 42 can also be arranged offset, and the chain 41 is connected to the counterweight portion 60 and the door body 20 at a certain angle to avoid certain structures. Through the gears 42 and the chain 41, the driving mechanism 50 can convert its driving force from any direction into the ability to lift or lower the door body and the counterweight portion 60 vertically, so that the driving mechanism 50 can be arranged at a suitable position. In this embodiment, the chain 41 extends in the horizontal direction, enabling the driving mechanism 50 to be arranged horizontally above the door body, thereby reducing the encroachment of the driving mechanism 50 on the space around the lifted door.

[0071] As Figure 1 , Figure 2 shown, the door frame 10 includes two vertical beams 11, a cross beam 12 connecting the two vertical beams 11 at the top surface, and a mounting rod 43 arranged parallel to the cross beam 12 and higher than the highest position that the door body 20 rises to. The mounting rod 43 is used to mount the driving mechanism 50 and the gear 42 above the door body 20. Specifically, the door body 20 is connected to the vertical beams 11 of the door frame 10, and the moving direction of the door body 20 is consistent with the extending direction of the vertical beams 11. The mounting rod 43 is arranged above the highest position of the moving path of the door body 20, extends in the horizontal direction, and is respectively connected to the vertical beams 11 at both ends. The chain 41 and the gear 42 of the transmission mechanism 40 are arranged on the mounting rod 43. The mounting rod 43 can provide an installation space for the driving mechanism 50 and the transmission mechanism 40, increasing the installation strength of the driving mechanism 50 and the transmission mechanism 40. And it does not affect the lifting and lowering of the door body 20.

[0072] As Figure 4As shown, the longitudinal beam 11 near the counterweight 60 in the door frame 10 is provided with an outwardly extending mounting frame 44, and the mounting frame 44 is used to mount the gear 42 corresponding to the counterweight 60. Specifically, the height of the mounting frame 44 in the vertical direction is the same as that of the mounting rod 43, and its setting position corresponds to the mounting rod 43, but it is connected to both sides of a longitudinal beam 11 respectively with the mounting rod 43, and the mounting frame 44 extends outward from the outside of the longitudinal beam 11, and the gear 42 connected to the counterweight 60 is fixed to the end of the mounting frame 44. By providing the mounting frame 44, the gear 42 corresponding to the counterweight 60 can be set outside the longitudinal beam 11, thereby providing a setting space for the counterweight 60, so that the counterweight 60 can be free from interference by the longitudinal beam 11.

[0073] like Figure 3 As shown, the mounting rod 43 is provided with a first guide rail 431 and a first slider 432 that is slidably matched with the first guide rail 431 on one side facing the chain 41, the chain 41 is fixed on the first slider 432, and the power output end 52 of the driving mechanism 50 is connected to the first slider 432, thereby driving the door body 20 to move up and down. Specifically, the mounting rod 43 is provided with a first guide rail 431 extending in a horizontal direction and a first slider 432 that is arranged on the first guide rail 431 and can slide back and forth along the extension direction of the first guide rail 431 on one side close to the counterweight part 60, the first slider 432 is respectively fixed to the power output end 52 of the driving mechanism 50 and the chain 41, and is used to pull the chain 41 to move, the first guide rail 431 is located in the middle position of the door body 20 and the counterweight part 60, and limits the range of movement of the chain 41 and the range of travel of the door body 20 to move up and down, when the first slider 432 moves to one end of the first guide rail 431 close to the counterweight part 60, the door body 20 is at its highest position. The mounting frame 44 is provided with a first guide rail 431 and a first slider 432 . The first slider 432 is fixed to the chain 41 and serves as a power connection point of the chain 41 . The first guide rail 431 can limit and guide the movement of the first slider 432 .

[0074] like Figures 3 to 4As shown, the driving mechanism 50 includes an electric push rod 51 that can be extended and retracted in the horizontal direction, and the extended end of the electric push rod 51 is a power output end 52 and is connected to the transmission mechanism 40. Specifically, the electric push rod 51 includes an electric cylinder and a telescopic rod, the electric cylinder is fixed at the bottom of the crossbeam 12, the telescopic rod extends from one side of the electric cylinder in the horizontal direction and can reciprocate in the horizontal direction, and the end of the telescopic rod is the extended end, which is connected and fixed to the power output end 52, and is connected to the first slider 432 through the power output end 52. In this embodiment, the telescopic rod is located above the first slide rail and the first slider 432, and the power output end 52 is a plate, the upper end of the connecting plate is fixedly connected to the extended end of the telescopic rod, and the lower end of the plate is fixedly connected to the first slider 432, and the connection position is on the side. The electric push rod 51 is more economical and more stable and accurate when driven. In other embodiments, the relative position of the electric push rod 51 and the first slider 432 can also be set to be set in the front and rear directions at the same horizontal height, which can reduce the overall height and thickness of the lifting door device.

[0075] like Figure 5 As shown, the counterweight part 60 is cylindrical. Compared with the polygon, the cylindrical shape can reduce the encroachment of the counterweight block on the space around the lifting door to a certain extent. At the same time, the cross-section of the cylinder is circular, and the center of gravity is located at the center of the circle. Since the distance from the center of the circle to its circumferential direction is its radius, the mass of the cylindrical counterweight part in the circumferential direction at the center of its cross-section is also uniform. Therefore, it is easier to maintain balance than polygons and other shapes, and the lifting and lowering of the door body can be more stable. In this embodiment, the weight of the counterweight part 60 is the same as the weight of the door body. The weight of the counterweight part 60 is the same as the weight of the door body, so that the transmission mechanism 40 can be kept stationary under force balance when it is only subjected to the weight of the counterweight part 60 and the door body in the absence of external force, so that the driving mechanism 50 can achieve the lifting effect by only applying a small force to break the force balance state of the transmission mechanism 40, thereby reducing the demand for driving force, and can reduce the cost of the driving mechanism 50, which is more economical. In other embodiments, even if the weight of the counterweight 60 is not the same as that of the door body 20 , the weight of the counterweight 60 can still be offset with that of the door body 20 to reduce the driving force required by the driving mechanism 50 .

[0076] like Figure 5 As shown, the counterweight part 60 is also provided with a counterweight guide part, which is fixed to the door frame 10, and the counterweight guide part extends in the vertical direction. The counterweight part 60 is movably connected to the counterweight guide part and moves along the extension direction of the counterweight guide part. A through hole 62 is provided on the counterweight part 60, and the counterweight guide part includes a guide column 61. The counterweight part 60 is passed through the guide column 61 through the through hole 62. The use of this structure can conveniently realize the guidance of the counterweight part 60 without occupying additional lateral space of the lifting door. Further avoid the adverse situation caused by the accidental shaking of the counterweight block. In other embodiments, other shapes of counterweight parts 60 can also be used, and the guide structure of the counterweight part 60 can be adaptively adjusted.

[0077] As shown Figure 6 in the figure, the lifting door device further includes a guiding mechanism 30, which includes a guiding groove 31 and a guiding block 32. The guiding groove 31 is arranged on the longitudinal beam 11, and the guiding block 32 is fixed to the door body 20. The guiding groove 31 extends along the moving direction of the door body 20. The guiding block 32 is clamped in the guiding groove 31 and can slide along the guiding groove 31. The guiding groove 31 is arranged offset from the door body 20 on the surface of the longitudinal beam 11, and the guiding block 32 is connected to the inner surface of the door body 20. Specifically, the guiding mechanism 30 of this embodiment is arranged between the door body 20 and the longitudinal beam 11 of the door frame 10. The guiding groove 31 is arranged on the side surface of the longitudinal beam 11 facing the door body 20, and the guiding block 32 is connected to the door body 20 and clamped in the guiding groove 31. In this embodiment, the guiding groove 31 is arranged on the longitudinal beam 11 and is arranged offset from the door body 20, so that the guiding block 32 does not need to be arranged between the side surface of the door body 20 and the longitudinal beam 11, but can be directly arranged on the inner surface of the door body 20 so that it overlaps with the door body 20 in the length direction of the door body 20. Compared with the scheme of directly arranging the guiding block 32 in the middle of the longitudinal beam 11 of the door frame and the door body 20, it can reduce the overall width of the door frame 10 to a certain extent. In other embodiments, the arrangement positions of the guiding groove 31 and the guiding block 32 can also be exchanged. A guide rail is formed by protruding outward from the longitudinal beam 11, and the door body 20 is provided with a groove structure to be clamped and slide on the guide rail. In another other embodiment, the guiding groove 31 and the guiding block 32 may not be staggered with the door body 20, but are arranged on the same plane between the door body 20 and the longitudinal beam 11 and clamped between the door body 20 and the longitudinal beam 11.

[0078] As shown Figure 6 in the figure, the guiding block 32 is connected to the door body 20 through a connecting portion 21. The guiding block 32 is arranged on one side of the door body 20 facing the battery compartment. The connecting portion 21 is L-shaped and has two vertical surfaces. One vertical surface is connected to the back surface of the guiding block 32, and the other vertical surface is connected to the surface of the door body 20 facing the battery compartment. The connecting portion 21 is detachably connected to the door body 20 through bolts. In order to avoid directly opening holes on the door body 20 affecting the strength and airtightness of the door body 20, connecting pieces are additionally arranged on the door body 20, which are welded to the door body 20 at both ends and protrude from the surface of the door body 20 in the middle. The middle protruding part of the connecting piece is provided with a hole for bolt connection with the connecting portion 21.

[0079] As shown Figure 7As shown, a reinforcing portion 22 is provided inside the door body 20. The reinforcing portion 22 is longitudinally arranged inside the door body 20 and supports the door body 20. A reinforcing plate 23 is provided at the bottom of the reinforcing portion 22. One end of the reinforcing plate 23 is connected to the side surface of the reinforcing portion 22, and the other end of the reinforcing plate 23 is connected to the bottom surface of the door body 20. Specifically, the inside of the door body 20 is hollow to form a cavity 24, so as to reduce the weight of the door body 20 and lower the driving force requirement of the driving mechanism 50. The reinforcing portion 22 is a protruding structure provided in the cavity 24 and filling the cavity 24 longitudinally, and is used to make up for the strength of the door body 20. In this embodiment, the reinforcing portion 22 protrudes in the thickness direction of the door body 20, and the door body 20 also protrudes outward synchronously at the position corresponding to the reinforcing portion 22 to form a protruding portion 241 with a thickness greater than other positions of the door body 20, so as to leave more space for the reinforcing portion 22 in the thickness direction of the door body 20. The reinforcing plate is arranged inside the protruding portion 241, with one end connected to the reinforcing portion 22 and the other end connected to the bottom surface of the cavity 24. The reinforcing portion 22 is arranged inside the door body 20 to longitudinally support the door body 20, and the reinforcing plate 23 further strengthens the end of the reinforcing portion 22, and the whole plays a role in strengthening the strength of the door body 20.

[0080] 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. A lift door device, characterized in that, It includes: a door frame, a door body, a driving mechanism, a transmission mechanism and a counterweight part; The door body can be lifted and moved in the door frame, the transmission mechanism is connected between the door body and the counterweight part, the drive mechanism is arranged above the door body and connected to the transmission mechanism, and the drive mechanism drives the door body to move up and down in the vertical direction.

2. The lifting door device according to claim 1, characterized in that, The transmission mechanism includes a chain and two gears, the two gears are respectively arranged above the center position of the lifting and lowering movement of the door body and the counterweight part, the chain is meshed with the two gears and extends to be connected to the door body and the counterweight part, and the driving machine part is connected to the area of ​​the chain located between the two gears.

3. The lifting door device according to claim 2, characterized in that, The door frame includes two longitudinal beams, a cross beam connecting the two longitudinal beams by a top surface, and a mounting rod arranged parallel to the cross beam and higher than the highest position of the door body. The mounting rod is used to install the driving mechanism and the gear located above the door body.

4. The lifting door device according to claim 3, characterized in that, The longitudinal beam of the door frame near the counterweight part is provided with a mounting frame extending outward, and the mounting frame is used to mount the gear corresponding to the counterweight part; and / or, The mounting rod is provided with a first guide rail and a first slider slidably matched with the first guide rail on one side facing the chain. The chain is fixed on the first slider. The power output end of the driving mechanism is connected to the first slider, thereby driving the door body to move up and down.

5. The lifting door device according to claim 1, characterized in that, The driving mechanism comprises an electric push rod which can be extended and retracted in a horizontal direction, wherein the extended end of the electric push rod is a power output end and is connected to the transmission mechanism.

6. The lifting door device according to claim 1, characterized in that, The counterweight portion is cylindrical; and / or, The weight of the counterweight is the same as the weight of the door body.

7. The lifting door device according to claim 1, characterized in that, The counterweight part is also provided with a counterweight guide part, the counterweight guide part is fixed to the door frame, the counterweight guide part extends in a vertical direction, the counterweight part is movably connected to the counterweight guide part and moves along the extension direction of the counterweight guide part; Preferably, the counterweight portion is provided with a through hole, the counterweight guide portion comprises a guide column, and the counterweight portion is passed through the through hole and arranged on the guide column.

8. The lifting door device according to claim 3, characterized in that, It also includes a guide mechanism, which includes a guide groove and a guide block, the guide groove is arranged on the longitudinal beam, the guide block is fixed to the door body, the guide groove extends along the movement direction of the door body, the guide block is clamped in the guide groove and can slide along the guide groove, the guide groove is staggered on the surface of the longitudinal beam and the door body, and the guide block is connected to the inner surface of the door body.

9. The lifting door device according to claim 1, wherein, A reinforcing portion is provided in the door body, the reinforcing portion is longitudinally arranged inside the door body and supports the door body, a reinforcing plate is provided at the bottom of the reinforcing portion, one end of the reinforcing plate is connected to the side surface of the reinforcing portion, and the other end of the reinforcing plate is connected to the bottom surface of the door body.

10. A power exchange station, characterized in that, It comprises a lifting door device as described in any one of claims 1-9.

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