Lifting type disaster prevention garage

By designing a lift-type disaster prevention garage, using the drive device to lift the vehicle platform, shed and guardrail to provide protection, and through a real-time information monitoring system, the hidden dangers of ground parking lots in bad weather and parking safety are solved, and the safety of parking is achieved. Effective protection and safety of the car.

CN222501217UActive Publication Date: 2025-02-18童凤民
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Patent Information

Application Number
CN202420792560.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-16
Publication Date
2025-02-18
Estimated Expiration
2034-04-16

AI Technical Summary

Technical Problem

Ground parking lots have hidden dangers when facing adverse weather conditions and in terms of parking safety, which cannot effectively prevent cars from being damaged in heavy rain or high temperatures, and there is a risk of vehicles colliding with pedestrians.

Method used

A lift-type disaster prevention garage is designed, which drives the vehicle platform to move vertically through the drive device, lifts the vehicle in bad weather, sets up a shed and guardrails to provide rain protection and sun protection and safe isolation, and passes positioning modules and monitoring. Modules and cloud servers realize real-time information monitoring and control.

Benefits of technology

It effectively avoids the car being soaked in accumulated water in heavy rain and being damaged by the sun in high temperatures, improves the parking safety of the vehicle, reduces the risk of collision between vehicles and pedestrians, and improves the garage's protection against bad weather.

✦ Generated by Eureka AI based on patent content.

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Abstract

The lifting type disaster prevention garage comprises a positioning part fixed to the ground and a lifting part located above the positioning part, the positioning part is provided with a driving device, the lifting part is provided with a vehicle carrying platform connected with the driving device, the vehicle carrying platform is provided with an entrance and exit allowing a vehicle to enter or leave, and the driving device drives the vehicle carrying platform to move in the vertical direction; the lifting part is further provided with a protection device, the protection device comprises a shielding assembly and a sensing assembly, the shielding assembly comprises a shielding shed located at the top of the vehicle carrying platform and a guardrail surrounding part of the vehicle carrying platform, and the sensing assembly comprises a sensor. When severe weather such as rainstorm weather is encountered, the driving device vertically lifts to enable a vehicle located on the vehicle carrying platform to be higher than the ground, excessive accumulated water is prevented from soaking a vehicle body, rain and sun protection of the vehicle is achieved through the shielding shed at the top of the vehicle carrying platform, safety of parking of the vehicle is improved through the guardrails, the vehicle carrying platform is isolated through the guardrails, and the safety of the vehicle is improved. Collision between vehicles and pedestrians is avoided, and the safety of the garage is improved.
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Description

Technical Field

[0001] The present application belongs to the field of garage equipment, and specifically relates to a lift-type disaster prevention garage. Background Art

[0002] Many existing residential areas or office buildings have ground parking lots, and users park their cars directly in the parking spaces. However, since the ground parking lots are open-air, there is no shelter for the cars in rainy weather, causing the car bodies to always be exposed to the rain, and water is easily accumulated on the ground, making it inconvenient for users to get on or off the car. In heavy rains, there is too much water on the ground and even part of the car body is submerged, causing serious damage to the car and losses to users. On the other hand, in hot weather, the car is prone to overheating due to long-term exposure to the sun, and it is necessary to manually cover the car with a car cover for sun protection, which is time-consuming and labor-intensive, and inconvenient to operate. In addition, there are many people walking in the ground parking lot, and the parking spaces are not blocked, which may cause collisions between vehicles and pedestrians.

[0003] Therefore, parking spaces in ground parking lots have hidden dangers when facing adverse weather conditions and in terms of parking safety, and further improvements are needed. Utility Model Content

[0004] The present application provides a lift-type disaster prevention garage to solve the problem of hidden dangers in ground parking lots when facing adverse weather conditions and in terms of parking safety.

[0005] The technical solution adopted in this application is:

[0006] A lift-type disaster prevention garage comprises a positioning part fixed to the ground and a lifting part located above the positioning part, the positioning part is provided with a driving device, the lifting part is provided with a vehicle loading platform connected to the driving device, the vehicle loading platform is provided with an entrance and exit for vehicles to drive in or out, and the driving device drives the vehicle loading platform to move vertically; the lifting part is also provided with a protective device, the protective device comprises a shielding assembly and a sensing assembly, the shielding assembly comprises a shielding shed located on the top of the vehicle loading platform and a guardrail surrounding part of the vehicle loading platform, and the sensing assembly comprises a sensor.

[0007] In a preferred implementation of a lift-type disaster prevention garage, the shelter includes a support assembly fixed to a vehicle loading platform and a ceiling connected to the support assembly, the ceiling is provided with a guide slope, the guide slope extends toward the vehicle loading platform, the vehicle loading platform is provided with a water collecting trough, the water collecting trough is provided with a drain outlet, and the projection of the extended end of the guide slope in the vertical direction falls into the water collecting trough.

[0008] In a preferred implementation of a lift-type disaster prevention garage, the support assembly includes four support rods, which are respectively fixed at the corners of the vehicle loading platform, and the height of any two adjacent support rods is lower than the height of the other two support rods. The ceiling is connected to the top of the support rods so that the ceiling as a whole forms a guiding slope, and the water collection trough is located on the side with a lower ceiling height.

[0009] In a preferred implementation of a lift-type disaster-proof garage, the support assembly includes a support rod, the roof is fixed to the top of the support rod, and extends outward along the top of the support rod to form a guide slope.

[0010] In a preferred implementation of a lift-type disaster-proof garage, the ceiling is provided with a groove, the groove extends toward the edge of the ceiling and the extended end of the groove is the lowest end of the ceiling in the vertical direction, the inner wall of the groove forms a guide slope, and the support assembly includes a hollow support column, the extended end of the groove is inserted into the support column, and the support column is located in the water collection tank.

[0011] In a preferred implementation of a lift-type disaster prevention garage, a plurality of grooves are provided.

[0012] In a preferred implementation of a lift-type disaster prevention garage, the support rod includes a fixed section and a movable section, the fixed section is sleeved on the outside of the movable section, the ceiling is connected to the movable section, the fixed section is provided with a plurality of mounting holes along the vertical direction, and the movable section is provided with positioning holes adapted to the mounting holes.

[0013] In a preferred implementation of a lift-type disaster prevention garage, the guardrail is made of flexible material and is circumferentially arranged around the vehicle loading platform.

[0014] In a preferred implementation of a lift-type disaster prevention garage, the driving device includes a scissors-type hydraulic lift, which drives the vehicle-carrying platform to have at least a first height and a second height. When the hydraulic lift is in a retracted state, the vehicle-carrying platform is at the first height, and when the hydraulic lift is in an extended state, the vehicle-carrying platform is at the second height.

[0015] In a preferred implementation of a lift-type disaster prevention garage, the disaster prevention garage further includes: a positioning module, a monitoring module, a cloud server and a mobile terminal;

[0016] The positioning module is set on the vehicle platform to collect the real-time location information of the vehicle platform and send it to the cloud server;

[0017] The monitoring module is provided with sensors, which include at least a wind sensor and a humidity sensor, and the monitoring module is used to collect real-time wind and humidity information and send it to the cloud server;

[0018] The cloud server is used to send real-time location information and real-time monitoring information to the mobile terminal;

[0019] Users can obtain real-time information about the disaster prevention garage through mobile terminals to determine whether to lift the vehicle loading platform.

[0020] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0021] (1) A driving device is provided to drive the vehicle loading platform to move vertically. In case of severe weather, such as heavy rain, the driving device is used to lift the vehicle loading platform vertically so that the vehicle on the vehicle loading platform is higher than the ground to prevent the vehicle body from being soaked by excessive water. At the same time, a protective device is provided to protect the vehicle from rain and sun through a canopy on the top of the vehicle loading platform. The safety of the vehicle when parked is increased through guardrails. In addition, there are usually many children active in residential areas. When children are chasing and playing, they may hit the vehicle body when the vehicle is parked on the vehicle loading platform due to their short height and fast running speed. When the vehicle enters or leaves the vehicle loading platform, a collision may also occur due to the blind spot of vision. The vehicle loading platform is isolated by guardrails to avoid collision between vehicles and pedestrians, thereby improving the safety of the garage.

[0022] (2) The ceiling is fixed above the vehicle loading platform through a supporting assembly, and a guide slope is set on the ceiling. At the same time, a water collecting trough cooperating with the guide slope is set on the vehicle loading platform. In rainy weather, rainwater falls into the water collecting trough along the guide slope. On the one hand, the guide slope can prevent water accumulation on the ceiling, and on the other hand, the water collecting trough can reduce water accumulation around the garage, thereby further improving the garage's protection against rainy weather and improving user experience. The water collecting trough is provided with a drainage outlet to facilitate the centralized discharge of rainwater.

[0023] (3) By setting up a positioning module, a detection module and a cloud server to connect with the garage sensor through signals, it is convenient for users to monitor the garage in real time, so that users can respond promptly in adverse weather conditions and achieve disaster prevention effects in the garage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of a disaster prevention garage in one embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a shelter in one embodiment of the utility model;

[0027] Figure 3 This is another structural schematic diagram of the shelter in one embodiment of the utility model;

[0028] Figure 4This is another structural schematic diagram of a shelter in one embodiment of the utility model;

[0029] Figure 5 It is a schematic structural diagram of a support rod in one embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1-Hydraulic lift, 2-support rod, 21-fixed section, 22-moving section, 23-installation hole, 24-positioning hole, 3-ceiling, 4-groove, 5-guide slope, 6-guardrail, 7-water collection trough, 8-support column, 9-car loading platform. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0034] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0037] like Figures 1 to 5 As shown, the present application scheme provides a lifting type disaster prevention garage, including a positioning part fixed to the ground and a lifting part located above the positioning part, the positioning part is provided with a driving device, the lifting part is provided with a vehicle loading platform 9 connected to the driving device, the vehicle loading platform 9 is provided with an entrance and exit for the car to drive in or out, and the driving device drives the vehicle loading platform 9 to move vertically; the lifting part is also provided with a protective device, the protective device includes a shielding component and a sensing component, the shielding component includes a shielding shed located on the top of the vehicle loading platform 9 and a guardrail 6 surrounding part of the vehicle loading platform 9, and the sensing component includes a sensor.

[0038] The driving device is provided to drive the vehicle loading platform 9 to move vertically. When encountering bad weather, such as heavy rain, the driving device is used to lift the vehicle loading platform 9 vertically so that the vehicle located on the vehicle loading platform 9 is higher than the ground to avoid excessive water accumulation and soaking of the vehicle body. At the same time, a protective device is provided to protect the vehicle from rain and sun through a shelter shed on the top of the vehicle loading platform 9. The safety of the vehicle when parked is increased through the guardrail 6. There are usually many children active in residential areas. When children are chasing and playing, they may hit the vehicle body when the vehicle is parked on the vehicle loading platform 9 due to their short height and fast running speed. When the vehicle enters or leaves the vehicle loading platform 9, a collision may also occur due to the blind spot of vision. The vehicle loading platform 9 is isolated by the guardrail 6 to avoid collision between vehicles and pedestrians, thereby improving the safety of the garage.

[0039] It should be noted that the sensor can be installed at a location according to actual application conditions, and the guardrail 6 is made of flexible material to avoid collision damage.

[0040] In one embodiment, the shelter includes a supporting assembly fixed to a vehicle loading platform 9 and a ceiling 3 connected to the supporting assembly. The ceiling 3 is provided with a guide slope 5, which extends toward the vehicle loading platform 9. The vehicle loading platform 9 is provided with a water collecting trough 7, which is provided with a drainage outlet. The projection of the extended end of the guide slope 5 in the vertical direction falls within the water collecting trough 7.

[0041] It should be noted that there are many ways to fix the ceiling 3 to the support assembly, and any of the prior art fixing methods can be used, such as perforating the ceiling 3, passing a steel wire through it and then winding it around the support assembly, or connecting the ceiling 3 to the support assembly via fasteners.

[0042] The ceiling 3 is fixed above the vehicle loading platform 9 through a supporting assembly, and a guide slope 5 is provided on the ceiling 3. At the same time, a water collecting trough 7 cooperating with the guide slope 5 is provided on the vehicle loading platform 9. In rainy weather, rainwater falls into the water collecting trough 7 along the guide slope 5. On the one hand, the guide slope 5 can be used to prevent water accumulation on the ceiling 3, and on the other hand, the water collecting trough 7 can be used to reduce water accumulation around the garage, thereby further improving the garage's protection against rainy weather and improving user experience. The water collecting trough 7 is provided with a drain outlet to facilitate the centralized discharge of rainwater.

[0043] It should be noted that the configuration of the lower guide slope 5 in this embodiment can be any one of the following embodiments:

[0044] Embodiment 1:

[0045] like Figure 2 As shown, the support assembly includes support rods 2, four support rods 2 are provided, and are respectively fixed at the corners of the vehicle loading platform 9, and the height of any two adjacent support rods 2 is lower than the height of the other two support rods 2, the ceiling 3 is connected to the top of the support rods 2 so that the ceiling 3 as a whole forms a guide slope 5, and the water collection tank 7 is located on the side with a lower height of the ceiling 3. This setting is simple in processing, low in cost, and simple in connection setting, which is easy to install and realize.

[0046] Embodiment 2:

[0047] like Figure 3 As shown, the support assembly includes a support rod 2, a ceiling 3 is fixed to the top of the support rod 2, and extends outward along the top of the support rod 2 to form a guide slope 5.

[0048] This implementation can increase the shielding area of ​​the ceiling 3 and achieve better rain and sun protection effects.

[0049] Embodiment three:

[0050] like Figure 4 As shown, the ceiling 3 is provided with a groove 4, which extends toward the edge of the ceiling 3 and the extended end of the groove 4 is the lowest end of the ceiling 3 in the vertical direction, the inner wall of the groove 4 forms a guide slope 5, and the support assembly includes a hollow support column 8, the extended end of the groove 4 is inserted into the support column 8, and the support column 8 is located in the water collection tank 7.

[0051] This embodiment is conducive to centralized drainage of rainwater from the ceiling 3.

[0052] Furthermore, an opening is provided at the bottom of the support column 8 to allow rainwater to flow into the water collection tank 7 .

[0053] Preferably, a plurality of grooves 4 are provided to accelerate the drainage speed of the ceiling 3 .

[0054] It should be noted that the bottom of the support rod 2 can be fixed to the vehicle loading platform 9 in any manner known in the prior art.

[0055] In addition, in order to enhance the diversion effect of the groove 4, multiple grooves 4 are concentrated in the middle of the ceiling 3. The ceiling 3 is set to be high on all sides and low in the center, so that rainwater flows into the groove 4 and then is concentratedly drained into the water collection tank 7 through the groove 4.

[0056] like Figure 5 As shown, in one embodiment, the support rod 2 includes a fixed section 21 and a movable section 22, the fixed section 21 is sleeved on the outside of the movable section 22, the ceiling 3 is connected to the movable section 22, the fixed section 21 is vertically provided with a plurality of mounting holes 23, and the movable section 22 is provided with positioning holes 24 adapted to the mounting holes 23.

[0057] Due to the different heights of different types of vehicles, if the vehicle height is low and the roof 3 is too high, the rain and sun protection effect cannot be effectively achieved. By setting the movable section 22 to cooperate with the fixed section 21, the overall height of the support rod 2 can be adjusted according to the height of the vehicle to achieve the adjustment of the height of the roof 3, so that it is more suitable for the height of the vehicle, effectively achieves the shielding effect, and improves the practicality and applicability of the garage.

[0058] Preferably, the ceiling 3 is made of flexible material to facilitate changing the height position of the ceiling 3 more conveniently and labor-savingly.

[0059] It should be noted that the fixed connection between the fixed section 21 and the movable section 22 can be achieved by bolts or other fasteners.

[0060] In one embodiment, the guardrail 6 is made of a flexible material and is circumferentially arranged around the vehicle loading platform 9 .

[0061] It is understandable that the vehicle loading platform 9 is usually provided with a vehicle entrance and exit, and no guardrail 6 is provided at the entrance and exit.

[0062] Preferably, the guardrail 6 at the opposite side of the entrance, that is, at the rear of the vehicle, is arranged horizontally so that the radar can detect obstacles in time when reversing, which is conducive to improving the accuracy of the vehicle placement position and avoiding the occurrence of reversing accidents due to blind spots. At the same time, in order to improve the practicality of the garage, the guardrail 6 at the rear of the vehicle is arranged to be detachable, one end of the guardrail 6 is fixed to the support rod 2, and the other end is detachably connected to the support rod 2 by a buckle or other existing overlapping methods. This method of connection and disassembly is simple and labor-saving. When the trunk needs to be opened, if there is insufficient space at the rear, the guardrail 6 at the rear of the vehicle can be disassembled to open the trunk, which is convenient for users to operate.

[0063] In a preferred implementation of a lift-type disaster prevention garage, the driving device includes a scissors-type hydraulic lift 1, and the hydraulic lift 1 drives the vehicle loading platform 9 to have at least a first height and a second height. When the hydraulic lift 1 is in a retracted state, the vehicle loading platform 9 is at the first height, and when the hydraulic lift 1 is in an extended state, the vehicle loading platform 9 is at the second height.

[0064] The vehicle loading platform 9 is lifted by hydraulic means, which has low manufacturing cost and simple structure. At the same time, the control method in the prior art can be adopted to set a controller and control system connected to the hydraulic lift 1 by electrical signals to realize the electric lifting of the vehicle loading platform 9.

[0065] In one embodiment, the disaster prevention garage further includes: a positioning module, a monitoring module, a cloud server, and a mobile terminal;

[0066] The positioning module is arranged on the vehicle platform 9, and is used to collect the real-time location information of the vehicle platform 9 and send it to the cloud server;

[0067] The monitoring module is provided with sensors, which include at least a wind sensor and a humidity sensor, and the monitoring module is used to collect real-time wind and humidity information and send it to the cloud server;

[0068] The cloud server is used to send real-time location information and real-time monitoring information to the mobile terminal;

[0069] The user obtains the real-time information of the disaster prevention garage through the mobile terminal to determine whether to lift the vehicle loading platform 9.

[0070] By setting up a positioning module, a detection module and a cloud server to connect with the garage sensor through signals, it is convenient for users to monitor the garage in real time, so that users can respond promptly in adverse weather conditions and achieve disaster prevention effects for the garage.

[0071] In addition, a wind sensor is provided, and when the wind is strong, the vehicle-carrying platform 9 is driven down by a driving device to enhance its stability. The shelter can shield falling objects from high altitude when the wind is strong to avoid damage to the vehicle, thereby improving the disaster prevention capability of the garage and achieving protection for the vehicle.

[0072] If the garage is managed by a user personally, the user can choose the lifting of the vehicle loading platform 9 according to actual conditions.

[0073] If a plurality of garages are set up in a ground parking lot for unified management, a wind sensor and a humidity sensor can be added to the ground parking lot, and the management personnel can obtain the real-time information of the parking lot to quickly perform the lifting and lowering operation of the vehicle loading platform 9.

[0074] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0075] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0076] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A lift-type disaster prevention garage, characterized in that: It includes a positioning part fixed to the ground and a lifting part located above the positioning part, the positioning part is provided with a driving device, the lifting part is provided with a vehicle loading platform connected to the driving device, the vehicle loading platform is provided with an entrance and exit for the car to drive in or out, and the driving device drives the vehicle loading platform to move vertically; the lifting part is also provided with a protective device, the protective device includes a shielding component and a sensing component, the shielding component includes a shielding shed located on the top of the vehicle loading platform and a guardrail surrounding part of the vehicle loading platform, and the sensing component includes a sensor.

2. A lift-type disaster prevention garage according to claim 1, characterized in that: The shelter includes a support assembly fixed to the vehicle loading platform and a ceiling connected to the support assembly, the ceiling is provided with a guide slope, the guide slope extends toward the vehicle loading platform, the vehicle loading platform is provided with a water collecting trough, the water collecting trough is provided with a drainage outlet, and the projection of the extended end of the guide slope in the vertical direction falls within the water collecting trough.

3. A lift-type disaster prevention garage according to claim 2, characterized in that: The support assembly includes support rods, four of which are fixed at the corners of the vehicle loading platform respectively, and the height of any two adjacent support rods is lower than the height of the other two support rods. The ceiling is connected to the top of the support rods so that the ceiling as a whole forms the guide slope, and the water collection tank is located on the side of the ceiling with a lower height.

4. The lift-type disaster prevention garage according to claim 2, characterized in that: The support assembly comprises a support rod, the roof is fixed to the top of the support rod, and extends outward along the top of the support rod to form the guide slope.

5. The lift-type disaster prevention garage according to claim 2, characterized in that: The ceiling is provided with a groove, the groove extends toward the edge of the ceiling and the extended end of the groove is the lowest end of the ceiling in the vertical direction, the inner wall of the groove forms the guide slope, the support assembly includes a hollow support column, the extended end of the groove is inserted into the support column, and the support column is located in the water collection tank.

6. The lift-type disaster prevention garage according to claim 5, characterized in that: There are a plurality of grooves.

7. The lift-type disaster prevention garage according to claim 3, characterized in that: The support rod includes a fixed section and a movable section, the fixed section is sleeved outside the movable section, the ceiling is connected to the movable section, the fixed section is vertically provided with a plurality of mounting holes, and the movable section is provided with positioning holes adapted to the mounting holes.

8. The lift-type disaster prevention garage according to claim 1, characterized in that: The guardrail is made of flexible material and is circumferentially arranged around the vehicle loading platform.

9. The lift-type disaster prevention garage according to claim 1, characterized in that: The driving device includes a scissor-type hydraulic lift, which drives the vehicle-carrying platform to have at least a first height and a second height. When the hydraulic lift is in a retracted state, the vehicle-carrying platform is at the first height, and when the hydraulic lift is in an extended state, the vehicle-carrying platform is at the second height.