A method for operating a car parking and taking path of a sliding rail type vertical shaft stereo garage

Abstract

The application discloses a parking and taking vehicle path operation method of a sliding rail type vertical shaft stereo garage, and comprises the following steps: constructing the sliding rail type vertical shaft stereo garage; in the parking process, a vehicle is carried to a corresponding layer parking space by a walking assembly through a vehicle receiving plate, and the vehicle is preferentially parked in a first parking space and a second parking space; after the first parking space and the second parking space are full, the vehicle is sequentially parked in a third parking space in a from bottom to top mode; in the taking vehicle process, when there is no vehicle parked in the third parking space, the vehicle receiving plate moves the vehicle from the first parking space / second parking space to the third parking space and moves the vehicle from the third parking space to a first garage entrance / exit and a second garage entrance / exit; when there is a vehicle parked in the third parking space, the moving path of the vehicle to be taken is planned based on the principle of the Hua Cun Road to move the vehicle to the first garage entrance / exit and the second garage entrance / exit. The application has the advantages that the optimal parking and taking vehicle path is reasonably planned according to the different parking numbers in the garage, and the operation efficiency is high when the garage is full.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vertical shaft stereo garage vehicle access, and in particular to a stop and take vehicle path operation method of a sliding rail type vertical shaft stereo garage. BACKGROUND

[0002] With the intensification of urbanization, the resident population in the city is increasing, and the available land area in the city is becoming smaller and smaller, and more and more people buy private cars, which also brings the problem of parking difficulty. In recent years, the underground cylindrical stereo garage has appeared, and the vertical shaft garage is a new structure form to solve the urban parking problem in recent years. The circular pit type stereo garage is a common circular vertical lifting type stereo garage, which is favored by people because of its small land occupation, multiple parking positions, good system safety and high reliability. However, there are still some problems: (1) For many scenes such as densely built buildings and irregularly spaced ground between buildings, such as long strip ground and L-shaped ground, the circular vertical stereo garage cannot fully utilize the available ground area, and even cannot be built. At the same time, the circular vertical stereo garage also has the problem of insufficient use of parking area; (2) The central position of the circular pit type stereo garage is generally equipped with a lifting machine that can rotate 360 degrees by a motor through a chain to pull a rotating platform to realize vertical lifting, and another access robot is also needed, which has slow access speed, and the chain traction method has the problems of complicated and time-consuming maintenance and maintenance, and complex structure; (3) There is no efficient sliding rail type vertical rectangular garage stop and take vehicle path operation method. SUMMARY

[0003] The purpose of the present application is to provide a sliding rail type vertical shaft stereo garage stop and take vehicle path operation method according to the above-mentioned deficiencies in the prior art. The stop and take vehicle path operation method sets three rows of parking spaces and a car receiving plate that can move on the parking space in the sliding rail type vertical shaft stereo garage, and based on the maximum number of parking spaces and the fastest stop and take vehicle configuration of the sliding rail type vertical shaft stereo garage, the optimal stop and take vehicle path is reasonably planned by using the different number of parking spaces in the garage without designing temporary vertical channels and car loading device storage rooms, and the operation efficiency is high when the garage is full.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] A stop and take vehicle path operation method of a sliding rail type vertical shaft stereo garage, the stop and take vehicle path operation method comprising the following steps:

[0006] Building a sliding rail type vertical shaft stereo garage;

[0007] The sliding rail type vertical shaft stereo garage comprises a rectangular vertical shaft and a sliding rail type double-side slot access vehicle system installed in the rectangular vertical shaft. The rectangular vertical shaft comprises an outer cylinder and an inner cylinder. The inner cylinder is installed in the middle of the inner part of the outer cylinder. A plurality of layers of parking spaces are arranged between the inner cylinder and the two sides of the outer cylinder and in the inner part of the inner cylinder. The parking spaces between the inner cylinder and the two sides of the outer cylinder are respectively communicated with the inner part of the inner cylinder. The parking space arranged between the inner cylinder and one side of the outer cylinder is a first parking space. The parking space arranged between the inner cylinder and the other side of the outer cylinder is a second parking space. The parking space arranged in the inner part of the inner cylinder is a third parking space. The sliding rail type double-side slot access vehicle system comprises a sliding rail, a vehicle receiving plate and a walking assembly. The sliding rail is composed of a plurality of groups of horizontal sliding rails arranged vertically along the rectangular vertical shaft and a plurality of groups of vertical sliding rails arranged horizontally along the rectangular vertical shaft. Each group of the horizontal sliding rails comprises two horizontal sliding rails arranged oppositely on the two sides of the rectangular vertical shaft. Each group of the vertical sliding rails comprises two vertical sliding rails arranged oppositely on the two sides of the rectangular vertical shaft. U-shaped sliding grooves are arranged on the horizontal sliding rails and the vertical sliding rails. The U-shaped sliding grooves of the horizontal sliding rails are communicated with the U-shaped sliding grooves of the vertical sliding rails. The walking assembly is installed in the U-shaped sliding grooves and connected with the vehicle receiving plate. The walking assembly drives the vehicle receiving plate to move along the length direction of the horizontal sliding rail or the vertical sliding rail. The top of the rectangular vertical shaft is provided with a garage shed. Garage entrances and exits are arranged on the two sides of the garage shed. The garage entrances and exits on the two sides of the garage shed are respectively a first garage entrance and a second garage entrance. The first parking space and the first garage entrance are located on the same side. The second parking space and the second garage entrance are located on the same side.

[0008] In the parking process, the vehicle receiving plate carries the vehicle to the parking space of the corresponding layer by the walking assembly. The vehicle is preferentially parked in the first parking space and the second parking space and is sequentially parked in the third parking space from bottom to top. When the first parking space and the second parking space are full, the vehicle is sequentially parked in the third parking space from bottom to top.

[0009] The first parking space, the second parking space and the third parking space of the uppermost layer are not used as parking spaces but as temporary parking spaces.

[0010] In the vehicle taking process, when there is no vehicle parked in the third parking space, the vehicle receiving plate moves the vehicle from the first parking space / second parking space to the third parking space and moves the vehicle from the third parking space to the first garage entrance / second garage entrance. When there is a vehicle parked in the third parking space, the moving path of the vehicle to be taken is planned based on the principle of the Hua Cun Dao to move the vehicle to the first garage entrance / second garage entrance.

[0011] The walking assembly comprises a rotating motor and a walking mechanism, the base of the rotating motor is installed on the rotating motor mounting hole of the vehicle receiving plate, the rotating motor shaft is connected with the walking mechanism, and the walking mechanism is installed in the U-shaped sliding groove.

[0012] The walking mechanism comprises a support plate, two support plates, a driving motor, driving wheels, an axle and a chain, the support plate is installed on the rotating motor shaft of the rotating motor, the two support plates are oppositely arranged and are both installed on the support plate, the two ends of the axle are respectively installed in the axle holes of the two support plates, the driving wheels are installed at the two ends of the axle and abut against the U-shaped sliding groove, the driving motor is arranged between the two support plates, the base of the driving motor is installed on one of the support plates, and the driving motor shaft is drivingly connected with the middle part of the axle through the chain.

[0013] The rectangular shafts are arranged in any combination.

[0014] A rain shed is installed at the entrance and exit of the garage.

[0015] The bottom of the outer cylinder and the inner cylinder is provided with a sealing bottom, and the sealing bottom is provided with a bottom plate.

[0016] The advantages of the present application are:

[0017] (1) The slide rail type double-sided slot access vehicle system has simple structure, the parking spaces of each layer adopt slide rails, the vehicle receiving plate and the vehicle storage plate are shared, and the equipment cost is low;

[0018] (2) The vehicle receiving plate is used for taking and storing vehicles, a plurality of vehicle receiving plates can be used for taking and storing vehicles at the same time, and the vehicle storage and taking efficiency is high;

[0019] (3) The rectangular shaft garage can fully utilize the parking area of the shaft garage;

[0020] (4) A plurality of rectangular shaft garages can be combined to adapt to the construction of shaft garages in various irregular plots and fully utilize the empty space;

[0021] (5) The slide rail type slot access vehicle system is simple to assemble, easy to maintain and repair, and low in operation and maintenance cost;

[0022] (6) The slide rail type double-sided slot access vehicle system can increase the number of parking spaces by more than 30% compared with the conventional vertical moving type and other three-dimensional parking methods, and can also adjust the parking spaces and the taking order according to the vehicle storage and taking conditions;

[0023] (7) Based on the maximum parking number and the fastest parking and taking configuration of the slide rail type shaft garage, the optimal path for parking and taking can be reasonably planned by utilizing the different number of parking spaces in the garage without designing a temporary vertical channel and a vehicle storage device storage room, and the operation efficiency is high when the garage is fully parked. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic view of the sliding rail type double-sided slot access vehicle system of the present application;

[0025] Figure 2 is Figure 1 is a sectional view of A-A in FIG. 1;

[0026] Figure 3 is Figure 1 is a sectional view of B-B in FIG. 1;

[0027] Figure 4 is Figure 3 is an enlarged view of a in FIG. 1;

[0028] Figure 5 is a combined view of multiple rectangular shafts of the present application;

[0029] Figure 6 is a schematic view of the parking and taking vehicle path operation method of the sliding rail type shaft stereo garage of the present application;

[0030] As shown in FIG. 1, the marks in the figure respectively represent: Figures 1-6

[0031] 1. Rectangular shaft, 2. Garage shed; 3. Sliding rail type double-sided slot access vehicle system, 4. Ground;

[0032] 11. Outer cylinder, 12. Inner cylinder, 13. Bottom sealing, 14. Bottom plate, 15. Parking space, 16. Temporary parking space;

[0033] 21. Garage entrance and exit, 22. Canopy;

[0034] 31. Sliding rail, 32. U-shaped sliding groove, 33. Vehicle receiving plate, 34. Rotary motor mounting hole, 35. Walking assembly;

[0035] 311. Horizontal sliding rail, 312. Vertical sliding rail;

[0036] 351. Rotary motor, 352. Rotary motor shaft, 353. Driving mechanism;

[0037] 3531. Support plate, 3532. Support plate, 3533. Driving motor, 3534. Driving motor shaft, 3535. Driving wheel, 3536. Axle, 3537. Chain, 3538. Axle hole. DETAILED DESCRIPTION

[0038] The features of the present application and other related features are further described in detail below with reference to embodiments and accompanying drawings, so as to facilitate the understanding of the same by those skilled in the art:

[0039] Embodiment: As shown in FIG. 1, Figures 1-6 ​As shown, this embodiment relates to a parking and retrieval path operation method for a sliding rail vertical shaft automated parking system. This parking and retrieval path operation method mainly includes the following steps:

[0040] Construct a sliding-rail vertical shaft multi-level parking garage.

[0041] Among them, such as Figures 1-5 As shown, the sliding rail vertical shaft parking garage includes a rectangular shaft 1 and a sliding rail double-sided slot vehicle storage and retrieval system 3 installed in the rectangular shaft 1. The rectangular shaft 1 has one or more rectangular shafts 1 in any combination. The top of the rectangular shaft 1 is level with the ground 4 and the bottom is below the ground 4. The top of the rectangular shaft 1 is equipped with a garage canopy 2. The rectangular shaft 1 includes an outer cylinder 11, an inner cylinder 12, a bottom sealing 13, and a bottom plate 14. The inner cylinder 12 is installed in the middle inside the outer cylinder 11. Several parking spaces 15 are provided between the two sides of the inner cylinder 12 and the outer cylinder 11, as well as inside the inner cylinder 12. The parking space 15 between one side of the inner cylinder 12 and the outer cylinder 11 is the first parking space, the parking space 15 between the other side of the inner cylinder 12 and the outer cylinder 11 is the second parking space, and the parking space 15 inside the inner cylinder 12 is the third parking space. The parking spaces 15 (the first parking space and the second parking space) between the two sides of the inner cylinder 12 and the outer cylinder 11 are all connected to the inside of the inner cylinder 12. The bottom of the outer cylinder 11 and the inner cylinder 12 is provided with a bottom sealing 13, and the bottom sealing 13 is provided with a bottom plate 14. The sliding rail type double-sided slot storage and retrieval vehicle system 3 includes a sliding rail 31, a receiving plate 33, and a traveling assembly 35. The sliding rail 31 consists of multiple sets of horizontal sliding rails 311 arranged vertically along the rectangular shaft 1 (outer cylinder 11 and inner cylinder 12) and four sets of vertical sliding rails 312 arranged horizontally along the rectangular shaft 1 (outer cylinder 11 / inner cylinder 12). Two sets of vertical sliding rails 312 are located inside the inner cylinder 12, and the other two sets of vertical sliding rails 312 are located outside the inner cylinder 12 (inside the outer cylinder 11). Each set of horizontal sliding rails 311 includes two oppositely arranged in the rectangular shaft 1 (outer cylinder 11 and inner cylinder 12). 12) The horizontal slide rails 311 on both sides and each set of vertical slide rails 312 includes two vertical slide rails 312 arranged opposite to each other on both sides of the rectangular shaft 1 (outer cylinder 11 / inner cylinder 12). Both the horizontal slide rails 311 and the vertical slide rails 312 are provided with U-shaped slide grooves 32. The U-shaped slide grooves 32 of the horizontal slide rails 311 and the U-shaped slide grooves 32 of the vertical slide rails 312 are connected. The traveling component 35 is installed in the U-shaped slide grooves 32 and connected to the receiving plate 33. The traveling component 35 drives the receiving plate 33 to move along the length direction of the horizontal slide rails 311 or the vertical slide rails 312. The garage entrances and exits 21 are provided on both sides of the garage canopy 2. The garage entrances and exits 21 on both sides of the garage canopy 2 are the first garage entrance and exit and the second garage entrance and exit, respectively. The first parking space and the first garage entrance and exit are located on the same side, and the second parking space and the second garage entrance and exit are located on the same side. Vehicles can enter and exit the vertical shaft garage through the garage entrances and exits 21. A canopy 22 is installed at the garage entrances and exits 21 for rain protection.

[0042] The walking assembly 35 comprises a rotating motor 351 and a walking mechanism 353. The base of the rotating motor 351 is mounted on the rotating motor mounting hole 34 of the receiving plate 33, the rotating motor shaft 352 is connected with the walking mechanism 353, and the walking mechanism 353 is mounted in the U-shaped sliding groove 32. The walking mechanism 353 comprises a support plate 3531, two support plates 3532, a driving motor 3533, a driving wheel 3535, an axle 3536 and a chain 3537. The support plate 3531 is mounted on the rotating motor shaft 352 of the rotating motor 351, the two support plates 3532 are oppositely arranged and are both mounted on the support plate 3531, the two ends of the axle 3536 are respectively mounted in the axle holes 3538 of the two support plates 3532, the driving wheel 3535 is mounted at the two ends of the axle 3536 and abuts against the U-shaped sliding groove 32, the driving motor 3533 is arranged between the two support plates 3532, the base of the driving motor 3533 is mounted on one of the support plates 3532, and the driving motor shaft 3534 is drivingly connected with the middle part of the axle 3536 through the chain 3537. In the embodiment, the rotating motor 351 drives the rotating motor shaft 352 to rotate, so as to adjust the walking direction (horizontal direction or vertical direction) of the walking mechanism 353; the driving motor 3533 drives the driving motor shaft 3534 to rotate, and under the transmission of the chain 3537, the axle 3536 is driven to rotate, so as to realize the movement of the driving wheel 3535.

[0043] In the parking process, the receiving plate 33 carries the vehicle to the parking space 15 of the corresponding layer through the walking assembly 35, preferentially parks the vehicle in the first parking space and the second parking space, and sequentially parks the vehicle in the third parking space in the downward manner; after the first parking space and the second parking space are full, the vehicle is sequentially parked in the third parking space in the downward manner.

[0044] Among them, the first parking space, the second parking space and the third parking space of the uppermost layer (i.e. the ground) are not used as parking spaces but as temporary parking spaces 16. When the first parking space and the second parking space are not full, the vehicle moves from the first garage entrance / second garage entrance to the first parking space (temporary parking space 16) / second parking space (temporary parking space 16), and then moves downward to the first parking space (parking space) / second parking space (parking space) of the corresponding layer; when the first parking space and the second parking space are full, the vehicle moves from the first garage entrance / second garage entrance to the first parking space (temporary parking space 16) / second parking space (temporary parking space 16), then moves horizontally to the third parking space (temporary parking space 16), and finally moves downward to the third parking space (parking space).

[0045] In the process of taking the car, when there is no vehicle parked on the third parking space, the car taking plate 33 moves the vehicle from the first parking space / second parking space to the third parking space and moves the vehicle from the third parking space to the first garage entrance / second garage entrance; when there is a vehicle parked on the third parking space, the movement path of the vehicle to be taken is planned based on the principle of the Hua Rongdao to move it to the first garage entrance / second garage entrance, specifically, as shown in Figure 6 the vehicle parked on the first parking space is A, B, C, D, E, F and G from bottom to top, and the vehicle parked on the third parking space is H, I, J, K, L, M and N from bottom to top; when vehicle H needs to be taken out, vehicles N, M, L, K, J, I and H move up to the third parking space on the upper floor in turn, vehicle A moves right to the third parking space on the same floor, and vehicle B moves down to the first parking space on the lower floor; vehicle H moves left to the first parking space on the same floor, vehicle I moves down to the third parking space on the lower floor, and vehicle C moves right to the third parking space on the same floor; vehicle H moves up to the first parking space on the upper floor, vehicle I moves left to the first parking space on the same floor, and vehicles C and J move down to the third parking space on the lower floor in turn; vehicle D moves right to the third parking space on the same floor, vehicle H moves up to the first parking space on the upper floor, vehicle J moves left to the first parking space on the same floor, and vehicles D and K move down to the third parking space on the lower floor in turn; vehicle E moves right to the third parking space on the same floor, vehicle H moves up to the first parking space on the upper floor, vehicle K moves left to the first parking space on the same floor, and vehicles E and L move down to the third parking space on the lower floor in turn; vehicle F moves right to the third parking space on the same floor, vehicle H moves up to the first parking space on the upper floor, vehicle L moves left to the first parking space on the same floor, and vehicles F and M move down to the third parking space on the lower floor in turn; vehicle G moves right to the third parking space on the same floor, vehicle H moves up to the first parking space on the uppermost floor, vehicle H leaves from the first garage entrance, vehicle N moves left to the first parking space on the same floor (temporary parking space 16), and moves down two floors to the first parking space. It should be noted that when the car taking plate 33 is placed on the parking space 15, the walking assembly 35 is located in the horizontal sliding rail 311, but not in the vertical sliding rail 312.

[0046] The beneficial technical effects of the embodiment are:

[0047] (1) The slide rail type double-sided slot car taking and storing system has simple structure, each layer of parking space uses a slide rail, and the car taking plate and the car storing plate are shared, so the equipment cost is low;

[0048] (2) The car taking plate is used to take the car and the car taking plate slot is used to store the car, so multiple car taking plates can take the car and the slot can store the car at the same time, and the car taking and storing efficiency is high;

[0049] (3) The rectangular shaft garage can fully utilize the parking area of the shaft garage;

[0050] (4) Multiple rectangular shaft garages can be combined to adapt to various irregular plot scenarios to build a shaft garage, and fully utilize the empty space;

[0051] (5) The sliding rail type slot access vehicle system is simple to assemble, easy to maintain and has low operation and maintenance costs;

[0052] (6) The sliding rail type double-sided slot access vehicle system can increase the number of parking spaces by more than 30% compared to conventional vertical movement type stereoscopic parking methods, and can also adjust the parking space and vehicle retrieval order according to the vehicle storage and retrieval conditions;

[0053] (7) Based on the maximum number of parking spaces and the fastest parking and retrieval configuration of the sliding rail type vertical shaft stereoscopic garage, without designing temporary vertical passages and vehicle storage spaces, the optimal parking and retrieval path is reasonably planned according to the different number of parking spaces in the garage, and the operation efficiency is high when the garage is full.

[0054] Although the above embodiments have been described in detail with reference to the accompanying drawings for the purpose of illustrating the concepts and embodiments of the present application, those of ordinary skill in the art can recognize that various improvements and changes can be made to the present application without departing from the scope defined by the claims, and therefore, detailed description is not given here.

Claims

1. A method for operating a car parking and retrieval path of a vertical lift type of a multi-level car parking system, characterized in that The parking path operation method comprises the following steps: The sliding rail type vertical shaft stereo garage is constructed; The sliding rail type vertical shaft stereo garage comprises a rectangular vertical shaft and a sliding rail type double-side slot car storage and retrieval system installed in the rectangular vertical shaft. The rectangular vertical shaft comprises an outer cylinder and an inner cylinder. The inner cylinder is installed in the middle of the inner part of the outer cylinder. A plurality of layers of parking spaces are arranged between the inner cylinder and the two sides of the outer cylinder and in the inner part of the inner cylinder. The parking spaces between the inner cylinder and the two sides of the outer cylinder are respectively communicated with the inner part of the inner cylinder. The parking space arranged between the inner cylinder and one side of the outer cylinder is a first parking space. The parking space arranged between the inner cylinder and the other side of the outer cylinder is a second parking space. The parking space arranged in the inner part of the inner cylinder is a third parking space. The sliding rail type double-side slot car storage and retrieval system comprises sliding rails, a car receiving plate and a walking assembly. The sliding rails are composed of a plurality of groups of horizontal sliding rails arranged vertically along the rectangular vertical shaft and a plurality of groups of vertical sliding rails arranged horizontally along the rectangular vertical shaft. Each group of the horizontal sliding rails comprises two horizontal sliding rails arranged oppositely on the two sides of the rectangular vertical shaft. Each group of the vertical sliding rails comprises two vertical sliding rails arranged oppositely on the two sides of the rectangular vertical shaft. U-shaped sliding grooves are arranged on the horizontal sliding rails and the vertical sliding rails. The U-shaped sliding grooves of the horizontal sliding rails are communicated with the U-shaped sliding grooves of the vertical sliding rails. The walking assembly is installed in the U-shaped sliding grooves and connected with the car receiving plate. The walking assembly drives the car receiving plate to move along the length direction of the horizontal sliding rails or the vertical sliding rails. A garage shed is arranged at the top of the rectangular vertical shaft. Garage entrances and exits are arranged on the two sides of the garage shed. The garage entrances and exits on the two sides of the garage shed are a first garage entrance and a second garage entrance respectively. The first parking space and the first garage entrance are located on the same side. The second parking space and the second garage entrance are located on the same side. In the parking process, the car receiving plate carries vehicles to the corresponding layer of parking spaces by the walking assembly. The vehicles are preferentially parked in the first parking space and the second parking space and sequentially parked in the third parking space from bottom to top. After the first parking space and the second parking space are full, vehicles are sequentially parked in the third parking space from bottom to top. The first parking space, the second parking space and the third parking space of the uppermost layer are not used as parking spaces but as temporary parking spaces. In the vehicle retrieval process, when there is no vehicle parked in the third parking space, the car receiving plate moves the vehicle from the first parking space / second parking space to the third parking space and moves the vehicle from the third parking space to the first garage entrance / second garage entrance. When there is a vehicle parked in the third parking space, the moving path of the vehicle to be retrieved is planned based on the principle of the Hua Cun Dao to move the vehicle to the first garage entrance / second garage entrance.

2. The method for operating the parking and taking path of the vertical shaft stereo garage with sliding rails according to claim 1, characterized in that: The walking assembly comprises a rotating motor and a walking mechanism. The base of the rotating motor is installed on the rotating motor installation hole of the car receiving plate. The rotating motor shaft is connected with the walking mechanism. The walking mechanism is installed in the U-shaped sliding groove.

3. The method for operating the parking and retrieval path of a sliding rail vertical shaft automated parking garage as described in claim 2, characterized in that: The walking mechanism comprises a support plate, support plates, a driving motor, driving wheels, an axle and a chain, the support plate is installed on the rotating motor shaft of the rotating motor, two support plates are oppositely arranged, the two support plates are both installed on the support plate, the two ends of the axle are respectively installed in the axle holes of the two support plates, the driving wheels are installed at the two ends of the axle and abut against the U-shaped sliding groove, the driving motor is arranged between the two support plates, the base of the driving motor is installed on one support plate, and the driving motor shaft is drivingly connected with the middle part of the axle through the chain.

4. The method for operating the parking and taking path of the vertical shaft stereo garage with sliding rails according to claim 1, characterized in that: The rectangular shafts are provided with one or more rectangular shafts in any combination.

5. The method for operating the parking and retrieving path of the vertical shaft stereo garage with sliding rails according to claim 1, characterized in that: A canopy is installed at the entrance and exit of the garage.

6. The method of claim 1, wherein the method further comprises: determining whether the vehicle is in the first position; and if the vehicle is not in the first position, moving the vehicle to the first position. The bottom of the outer cylinder and the inner cylinder is provided with a sealing bottom, and a bottom plate is arranged on the sealing bottom.

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