Vehicle lifting driving mechanism for double-layer parking space system

Abstract

The utility model relates to the technical field of vertical double-layer parking devices, in particular to a vehicle lifting driving mechanism for a double-layer parking space system, which comprises a parking frame with a vehicle lifting space, and a front wheel lifting component and a rear wheel lifting component which are symmetrical to each other are respectively arranged on two sides of the parking frame. Front wheel fork plates capable of bearing front wheels of a vehicle are arranged on the two front wheel lifting assemblies, and rear wheel fork plates capable of bearing rear wheels of the vehicle are arranged on the two rear wheel lifting assemblies. The parking frame is further provided with a lifting driving assembly, the lifting driving assembly can drive the front wheel lifting assembly and the rear wheel lifting assembly to synchronously ascend and descend, and lifting control over vehicles parked on the two front wheel fork plates and the two rear wheel fork plates is achieved. The technical problems that an existing double-layer parking device is lifted through a steel wire rope, so that a vehicle shakes and is not stable, and even the vehicle shifts and rolls over can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the technical field of vertical double-layer parking devices, and in particular to a vehicle lifting drive mechanism for a double-layer parking space system. Background Technology

[0002] Currently, with rapid economic development and accelerating urbanization, private cars (including gasoline-powered vehicles, new energy vehicles, and hybrid vehicles) are increasingly becoming part of households, leading to a growing conflict between car purchase and parking needs. Existing parking spaces are mostly simply marked on the ground, with each space only accommodating one car at a time. This is undoubtedly a waste in cities where land resources are scarce. Existing multi-level parking systems are primarily used in large parking lots, utilizing lift-and-access mechanisms and centralized placement of multiple parking spaces to maximize space utilization. However, these systems suffer from complex structures and high installation and maintenance costs, failing to meet the parking needs of small shopping malls and families with limited budgets.

[0003] Chinese invention patent CN110485770A discloses a double-layer vertical parking device, including a frame, a frame lateral movement system, an upper vehicle platform lifting system, and a lower vehicle platform lateral movement system. The frame is installed at the parking location. The frame lateral movement system and the upper vehicle platform lifting system are mounted on the frame. The lower vehicle platform and the lower vehicle platform lateral movement system are installed at the bottom of the frame. The upper vehicle platform is located inside the frame. The upper vehicle platform lifting system controls the lifting and lowering of the upper vehicle platform. The frame moves laterally under the control of the frame lateral movement system. The upper vehicle platform and the upper vehicle platform lifting system move synchronously with the frame. When the frame moves to a preset travel point, the upper vehicle platform lifting system controls the upper vehicle platform to descend to the bottom of the frame, allowing the car to enter / exit the upper vehicle platform. The upper vehicle platform lifting system then controls the upper vehicle platform to rise to a specified height, and the frame lateral movement system controls the frame to return to its original position. This device enables uninterrupted entry and exit of vehicles in double-layer vertical parking, improving parking efficiency.

[0004] The above-mentioned method for lifting vehicles involves installing steel cables at the four corners of the upper platform, and then using the steel cables to lift and lower the car parked on the upper platform. This method of lifting with steel cables will inevitably cause the car to sway during the lifting process. If the initial parking position of the vehicle on the upper platform is not straight, the swaying will be more severe during the lifting process, and there is even a risk of the car shifting and overturning.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the problems of the prior art and provide a vehicle lifting drive mechanism for a double-layer parking system, which solves the technical problem of unstable vehicle shaking caused by the use of steel wire rope lifting in existing double-layer parking devices, and even causes vehicle displacement and overturning.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A vehicle lifting drive mechanism for a double-layer parking system includes a parking frame with a vehicle lifting space. Symmetrical front wheel lifting assemblies and rear wheel lifting assemblies are respectively arranged on both sides of the parking frame. The two front wheel lifting assemblies are equipped with front wheel forks capable of supporting the front wheels of the vehicle, and the two rear wheel lifting assemblies are equipped with rear wheel forks capable of supporting the rear wheels of the vehicle. A lifting drive assembly is also provided on the parking frame, which drives the front wheel lifting assemblies and the rear wheel lifting assemblies to lift and lower synchronously, thereby controlling the lifting and lowering of vehicles parked on the two front wheel forks and the two rear wheel forks.

[0009] Furthermore, the front wheel lifting assembly includes an upper front wheel sprocket and a lower front wheel sprocket symmetrically arranged on the upper and lower sides of the parking frame. The upper front wheel sprocket and the lower front wheel sprocket are movably connected to the upper front wheel sprocket support and the lower front wheel sprocket support fixed to the parking frame, respectively. A front wheel lifting chain is provided between the upper front wheel sprocket and the lower front wheel sprocket. After the front wheel lifting chain is wound around the upper front wheel sprocket and the lower front wheel sprocket, its two ends are fixed to the front wheel fork plate.

[0010] Furthermore, front wheel fork plate guide rails are symmetrically arranged on the parking frame corresponding to the front wheel upper sprocket support and the front wheel lower sprocket support on the same side, and front wheel fork plate roller assemblies matching the front wheel fork plate guide rails are symmetrically arranged on the back of the front wheel fork plate.

[0011] Furthermore, the rear wheel lifting assembly includes an upper rear wheel sprocket and a lower rear wheel sprocket symmetrically arranged on the upper and lower sides of the parking frame. The upper rear wheel sprocket and the lower rear wheel sprocket are movably connected to the upper rear wheel sprocket support and the lower rear wheel sprocket support fixed to the parking frame, respectively. A rear wheel lifting chain is provided between the upper rear wheel sprocket and the lower rear wheel sprocket. After the rear wheel lifting chain is wound around the upper rear wheel sprocket and the lower rear wheel sprocket, its two ends are fixed to the rear wheel fork plate.

[0012] Furthermore, rear wheel fork plate guide rails are symmetrically arranged on the parking frame corresponding to the upper rear wheel sprocket support and the lower rear wheel sprocket support on the same side, and rear wheel fork plate roller assemblies matching the rear wheel fork plate guide rails are symmetrically arranged on the back of the rear wheel fork plate.

[0013] Furthermore, the front wheel fork plate roller assembly and the rear wheel fork plate roller assembly have the same specifications, both including roller supports symmetrically arranged on the back of the front wheel fork plate and the rear wheel fork plate, and several roller trolleys are vertically arranged on the roller supports.

[0014] Furthermore, a chain fixing seat is provided at the axial position of the two roller supports, and both ends of the front wheel lifting chain or the rear wheel lifting chain are respectively fixed to the chain fixing seat by chain bolts.

[0015] Furthermore, the lifting drive assembly includes a lifting synchronous rotating shaft that is movably connected to the parking frame via a bearing support. A left sprocket and a right sprocket are respectively provided at both ends of the lifting synchronous rotating shaft. The left sprocket is connected to the upper sprocket of the rear wheel on the same side via a first left chain, and the upper sprocket of the rear wheel is connected to the upper sprocket of the front wheel on the same side via a second left chain. The right sprocket is connected to the upper sprocket of the rear wheel on the same side via a first right chain, and the upper sprocket of the rear wheel is connected to the upper sprocket of the front wheel on the same side via a second right chain.

[0016] Furthermore, a shaft gear is sleeved on the lifting synchronous shaft, and correspondingly, a lifting motor is provided on the parking frame. A lifting motor sprocket is sleeved on the shaft of the lifting motor, and the lifting motor sprocket and the shaft gear are connected by a shaft chain.

[0017] Furthermore, the lifting motor is connected to an electrical control box mounted on the parking frame to control the lifting motor.

[0018] This invention provides a vehicle lifting drive mechanism for a double-layer parking system, which effectively solves the technical problem of vehicle swaying and instability caused by the use of steel wire ropes in existing double-layer parking devices, and even the risk of vehicle displacement and rollover. This mechanism is not only simple in structure and precise in control, but also provides a stable lifting environment for vehicles, creating parking spaces below after lifting. Attached Figure Description

[0019] Figure 1 This is a first-view structural schematic diagram of a vehicle lifting drive mechanism for a double-layer parking space system according to the present invention.

[0020] Figure 2 This is a second-view structural schematic diagram of a vehicle lifting drive mechanism for a double-layer parking space system according to the present invention;

[0021] Figure 3 This is a third-view structural diagram of a vehicle lifting drive mechanism for a double-layer parking space system according to the present invention.

[0022] Figure 4 This is a schematic diagram of the front wheel lifting assembly and the rear wheel lifting assembly in a vehicle lifting drive mechanism for a double-layer parking space system according to the present invention.

[0023] Figure 5 This is a schematic diagram of the front wheel lifting assembly in a vehicle lifting drive mechanism for a double-layer parking space system according to the present invention.

[0024] Figure 6 This is a first-view structural diagram of the connection between the roller trolley and the front wheel fork or the rear wheel fork in a vehicle lifting drive mechanism for a double-layer parking space system according to the present invention.

[0025] Figure 7 This is a second-view structural diagram of the roller trolley and the front wheel fork or the rear wheel fork in a vehicle lifting drive mechanism for a double-layer parking space system according to the present invention.

[0026] Figure 8 This is a schematic diagram of the connection between the roller trolley and the T-shaped track groove in the vehicle lifting drive mechanism for a double-layer parking space system described in this utility model.

[0027] Figure 9 This is a diagram of the vehicle-unlifted turntable of a vehicle lifting drive mechanism for a double-layer parking space system according to the present invention.

[0028] Figure 10 This is a diagram of a vehicle-lifted turntable for a vehicle lifting drive mechanism used in a double-layer parking system, as described in this utility model.

[0029] Illustration markings:

[0030] 1-Parking frame, 101-Vehicle lifting space;

[0031] 2-Front wheel lifting assembly, 201-Front wheel upper sprocket, 202-Front wheel lower sprocket, 203-Front wheel upper sprocket support, 204-Front wheel lower sprocket support, 205-Front wheel lifting chain, 206-Front wheel fork plate, 207-Front wheel fork plate guide rail, 208-Front wheel fork plate roller assembly;

[0032] 3-Rear wheel lifting assembly, 301-Rear wheel upper sprocket, 302-Rear wheel lower sprocket, 303-Rear wheel upper sprocket support, 304-Rear wheel lower sprocket support, 305-Rear wheel lifting chain, 306-Rear wheel fork plate, 307-Rear wheel fork plate guide rail, 308-Rear wheel fork plate roller assembly;

[0033] 4-Lifting drive assembly, 401-Bearing support, 402-Lifting synchronous shaft, 403-Left sprocket, 404-Right sprocket, 405-First left chain, 406-Second left chain, 407-First right chain, 408-Second right chain, 409-Shaft gear, 410-Lifting motor, 411-Shaft, 412-Lifting motor sprocket, 413-Shaft chain;

[0034] 5-Roller support, 6-Roller trolley, 7-Bolt, 8-Roller connecting seat, 9-Roller, 10-T-shaped track groove, 11-Chain fixing seat, 12-Chain bolt, 13-Electrical control box, 14-Control box, 15-Vehicle, 16-Vehicle front wheel, 17-Rear wheel. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] like Figures 1-5 As shown, this solution provides a vehicle lifting drive mechanism for a double-layer parking space system, including a parking frame 1 with a vehicle lifting space 101. Symmetrical front wheel lifting components 2 and rear wheel lifting components 3 are respectively arranged on both sides of the parking frame 1. The two front wheel lifting components 2 are equipped with front wheel forks 206 capable of supporting the front wheels 16 of the vehicle, and the two rear wheel lifting components 3 are equipped with rear wheel forks 306 capable of supporting the rear wheels 17 of the vehicle. A lifting drive component 4 is also provided on the parking frame 1, which can drive the front wheel lifting components 2 and the rear wheel lifting components 3 to lift synchronously, thereby controlling the lifting of vehicles 15 parked on the two front wheel forks 206 and the two rear wheel forks 306.

[0037] Working principle:

[0038] like Figure 9 and Figure 10 As shown, before operation, the lifting drive assembly 4 drives the front wheel lifting assembly 2 and the rear wheel lifting assembly 3 to bring the front wheel fork plate 206 and the rear wheel fork plate 306 into contact with the ground. When the vehicle 15 travels to the vehicle lifting space 101, and the two front wheels 16 of the vehicle are respectively located on the two front wheel fork plates 206, and the two rear wheels 17 of the vehicle 15 are respectively located on the two rear wheel fork plates 306, the lifting operation is performed.

[0039] The lifting drive assembly 4 drives the front wheel lifting assembly 2 and the rear wheel lifting assembly 3 to lift the vehicle 15. When the vehicle reaches a designated area or height, the lifting operation is stopped, thus completing the lifting operation of the vehicle 15.

[0040] When the vehicle needs to be lowered, the lifting drive assembly 4 drives the front wheel lifting assembly 2 and the rear wheel lifting assembly 3 to lower the vehicle 15. When the two front wheel forks 206 and the two rear wheel forks 306 simultaneously contact the ground, the operation stops, and the vehicle 15 can start and drive away from the vehicle lifting space 101.

[0041] like Figure 4 and Figure 5 As shown, the front wheel lifting assembly 2 includes a front wheel upper sprocket 201 and a front wheel lower sprocket 202 symmetrically arranged on the upper and lower sides of the parking frame 1. The front wheel upper sprocket 201 and the front wheel lower sprocket 202 are respectively movably connected to the front wheel upper sprocket support 203 and the front wheel lower sprocket support 204 fixed to the parking frame 1. A front wheel lifting chain 205 is arranged between the front wheel upper sprocket 201 and the front wheel lower sprocket 202. After the front wheel lifting chain 205 is wound around the front wheel upper sprocket 201 and the front wheel lower sprocket 202 respectively, its two ends are respectively fixed to the front wheel fork plate 206.

[0042] Driven by the rotation of the upper sprocket 201 of the front wheel, the lifting chain 201 of the front wheel can drive the lower sprocket 202 of the front wheel to rotate synchronously, and the front wheel fork plate 206 connected to the single lifting chain 205 of the front wheel will lift synchronously during the lifting process of the lifting chain 205 of the front wheel.

[0043] A front wheel fork plate guide rail 207 is symmetrically arranged on the parking frame 1 between the front wheel upper sprocket support 203 and the front wheel lower sprocket support 204 located on the same side. A front wheel fork plate roller assembly 208 matching the front wheel fork plate guide rail 207 is symmetrically arranged on the back of the front wheel fork plate 206.

[0044] Driven by the front wheel lifting chain 205, the front wheel fork plate 206 moves vertically and stably along the front wheel fork plate guide rail 207 via the front wheel fork plate roller assembly 208. Compared with traditional wire rope lifting, the structure provided by this solution can ensure that the front wheel lifting process of the vehicle is more stable and will not shake.

[0045] like Figure 4 and Figure 5As shown, the rear wheel lifting assembly 3 includes an upper rear wheel sprocket 301 and a lower rear wheel sprocket 302 symmetrically arranged on the upper and lower sides of the parking frame 1. The upper rear wheel sprocket 301 and the lower rear wheel sprocket 302 are respectively movably connected to the upper rear wheel sprocket support 303 and the lower rear wheel sprocket support 304 fixed to the parking frame 1. A rear wheel lifting chain 305 is provided between the upper rear wheel sprocket 301 and the lower rear wheel sprocket 302. After the rear wheel lifting chain 305 is wound around the upper rear wheel sprocket 301 and the lower rear wheel sprocket 302, its two ends are respectively fixed to the rear wheel fork plate 306.

[0046] Driven by the rotation of the upper sprocket 301 of the rear wheel, the lower sprocket 302 of the rear wheel can rotate synchronously, and the rear wheel fork plate 306 connected to the single lower sprocket 305 of the rear wheel will rise and fall synchronously during the lifting and lowering process of the lower sprocket 305 of the rear wheel.

[0047] A rear wheel fork plate guide rail 307 is symmetrically arranged on the parking frame 1 between the rear wheel upper sprocket support 303 and the rear wheel lower sprocket support 304 located on the same side. A rear wheel fork plate roller assembly 308 matching the rear wheel fork plate guide rail 307 is symmetrically arranged on the back of the rear wheel fork plate 306.

[0048] Driven by the rear wheel lifting chain 305, the rear wheel fork plate 306 moves vertically and stably along the rear wheel fork plate guide rail 307 via the rear wheel fork plate roller assembly 308. Compared with traditional wire rope lifting, the structure provided by this solution can ensure that the rear wheel lifting process of the vehicle is more stable and will not shake.

[0049] like Figures 6-8 As shown, in this embodiment, the front wheel fork plate roller assembly 208 and the rear wheel fork plate roller assembly 308 have the same specifications. Both include roller supports 5 symmetrically arranged on the back of the front wheel fork plate 206 and the rear wheel fork plate 306, and a plurality of roller trolleys 6 are vertically arranged on the roller supports 5.

[0050] In this embodiment, the roller trolley 6 includes a roller connecting seat 8 that is fixedly connected to the roller support 5 by bolts 7, and a plurality of sets of rollers 9 are movably arranged on the roller connecting seat 8.

[0051] As an optimization of this embodiment, the front wheel fork plate guide rail 207 and the rear wheel fork plate guide rail 307 have the same specifications, both including a T-shaped track groove 10 that can be movably embedded in the roller trolley 6. The roller trolley 6 is confined within the T-shaped track groove 10, and each of the rollers 9 can roll in the T-shaped track groove 10 under the lifting and lowering action of the front wheel fork plate 206 and the rear wheel fork plate 306.

[0052] In addition, a chain fixing seat 11 is provided at the axial position of the two roller supports 5, and the two ends of the front wheel lifting chain 205 or the rear wheel lifting chain 305 are respectively fixed to the chain fixing seat 11 by chain bolts 12.

[0053] The chain fixing seat 11 is fixedly connected to the back of the front wheel fork plate 206 or the rear wheel fork plate 306.

[0054] like Figure 3 and Figure 4 As shown, the lifting drive assembly 4 includes a lifting synchronous rotating shaft 402 that is movably connected to the parking frame 1 via a bearing support 401. A left sprocket 403 and a right sprocket 404 are respectively provided at both ends of the lifting synchronous rotating shaft 402.

[0055] The left sprocket 403 is connected to the rear wheel upper sprocket 301 on the same side via a first left chain 405, and the rear wheel upper sprocket 301 is connected to the front wheel upper sprocket 201 on the same side via a second left chain 406.

[0056] The right sprocket 404 is connected to the rear wheel upper sprocket 301 on the same side via a first right chain 407, and the rear wheel upper sprocket 301 is connected to the front wheel upper sprocket 201 on the same side via a second right chain 408.

[0057] Driven by the rotation of the lifting synchronous shaft 402, the left sprocket 403 and the right sprocket 404 can rotate synchronously, thereby achieving:

[0058] Left side: The left sprocket 403 drives the first left chain 405 to rotate the left rear upper sprocket 301, and the rear upper sprocket 301 drives the second left chain 406 to rotate the left front upper sprocket 201, thereby achieving synchronous rotation of the left rear upper sprocket 301 and the left front upper sprocket 201; and since the left front upper sprocket 201 and the left vertical front lower sprocket 202 are connected by a front... The rear wheel lifting chain 205 connects the upper rear wheel sprocket 301 to the lower rear wheel sprocket 302 on the left side via the rear wheel lifting chain 305. The front wheel lifting chain 205 is fixedly connected to the front wheel fork plate 206, and the rear wheel lifting chain 305 is fixedly connected to the rear wheel fork plate 306. Therefore, the rotation of the left sprocket 403 can drive the left front wheel fork plate 206 and the rear wheel fork plate 306 to lift synchronously.

[0059] On the right side: The right sprocket 404 drives the first right chain 407 to rotate the upper sprocket 301 of the rear wheel on the right side. The upper sprocket 301 of the rear wheel drives the second right chain 408 to rotate the upper sprocket 201 of the front wheel on the right side, thereby achieving synchronous rotation of the upper sprocket 301 of the rear wheel and the upper sprocket 201 of the front wheel on the right side; and since the upper sprocket 201 of the front wheel on the right side and the lower sprocket 202 of the front wheel on the right side are connected by a front sprocket... The rear wheel lifting chain 205 connects the upper rear wheel sprocket 301 to the lower rear wheel sprocket 302 on the right side via the rear wheel lifting chain 305. The front wheel fork plate 206 is fixedly connected to the front wheel lifting chain 205, and the rear wheel fork plate 306 is fixedly connected to the rear wheel lifting chain 305. Therefore, the rotation of the right sprocket 404 can drive the front wheel fork plate 206 and the rear wheel fork plate 306 on the right side to lift synchronously to the left.

[0060] In summary, by rotating the lifting synchronous shaft 402, the front wheel fork plates 206 on the left and right sides and the rear wheel fork plate 306 on the right side can be driven to lift and lower synchronously, thereby achieving stable lifting or lowering control of the vehicle 15.

[0061] It should be noted that, in this embodiment, the rear wheel upper sprocket 301 has three rows of gears, and the front wheel upper sprocket 201 has two rows of gears.

[0062] In this embodiment, a shaft gear 409 is sleeved on the lifting synchronous shaft 402. Correspondingly, a lifting motor 410 is provided on the parking frame 1. A lifting motor sprocket 412 is sleeved on the shaft 411 of the lifting motor 410. The lifting motor sprocket 412 and the shaft gear 409 are connected by a shaft chain 413.

[0063] The clockwise or counterclockwise rotation of the lifting motor 410 can indirectly drive the rotating shaft gear 409 to drive the lifting synchronous rotating shaft 402 to rotate synchronously clockwise or counterclockwise, thereby driving the front wheel fork plate 206 on the left and right sides and the rear wheel fork plate 306 on the right side to perform synchronous lifting control.

[0064] As an optimization of this solution, the lifting motor 410 is connected to the electrical control box 13 installed on the parking frame 1 to control the lifting motor 410.

[0065] As a further optimization of this embodiment, the electrical control box 13 is also connected to the control box 14 located at the low position of the parking frame 1, which facilitates manual control by pressing buttons.

[0066] The above description is only for illustrating the embodiments of this utility model and is not intended to limit this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle lifting drive mechanism for a double-layer parking space system, characterized in that, The system includes a parking frame (1) with a vehicle lifting space (101). The parking frame (1) is provided with symmetrical front wheel lifting components (2) and rear wheel lifting components (3) on both sides. The two front wheel lifting components (2) are provided with front wheel forks (206) capable of supporting the front wheels (16) of the vehicle, and the two rear wheel lifting components (3) are provided with rear wheel forks (306) capable of supporting the rear wheels (17) of the vehicle. The parking frame (1) is also provided with a lifting drive component (4), which can drive the front wheel lifting components (2) and the rear wheel lifting components (3) to lift synchronously, thereby realizing the lifting control of the vehicle (15) parked on the two front wheel forks (206) and the two rear wheel forks (306).

2. The vehicle lifting drive mechanism for a double-layer parking space system according to claim 1, characterized in that, The front wheel lifting assembly (2) includes a front wheel upper sprocket (201) and a front wheel lower sprocket (202) symmetrically arranged on the upper and lower sides of the parking frame (1). The front wheel upper sprocket (201) and the front wheel lower sprocket (202) are respectively movably connected to the front wheel upper sprocket support (203) and the front wheel lower sprocket support (204) fixed on the parking frame (1), and a front wheel lifting chain (205) is provided between the front wheel upper sprocket (201) and the front wheel lower sprocket (202). After the front wheel lifting chain (205) is wrapped around the front wheel upper sprocket (201) and the front wheel lower sprocket (202), its two ends are respectively fixed to the front wheel fork plate (206).

3. A vehicle lifting drive mechanism for a double-layer parking space system according to claim 2, characterized in that, A front wheel fork plate guide rail (207) is symmetrically arranged on the parking frame (1) between the front wheel upper sprocket support (203) and the front wheel lower sprocket support (204) located on the same side. A front wheel fork plate roller assembly (208) matching the front wheel fork plate guide rail (207) is symmetrically arranged on the back of the front wheel fork plate (206).

4. A vehicle lifting drive mechanism for a double-layer parking space system according to claim 3, characterized in that, The rear wheel lifting assembly (3) includes an upper rear wheel sprocket (301) and a lower rear wheel sprocket (302) symmetrically arranged on the upper and lower sides of the parking frame (1). The upper rear wheel sprocket (301) and the lower rear wheel sprocket (302) are respectively movably connected to the upper rear wheel sprocket support (303) and the lower rear wheel sprocket support (304) fixed on the parking frame (1). A rear wheel lifting chain (305) is provided between the upper rear wheel sprocket (301) and the lower rear wheel sprocket (302). After the rear wheel lifting chain (305) is wrapped around the upper rear wheel sprocket (301) and the lower rear wheel sprocket (302), its two ends are respectively fixed to the rear wheel fork plate (306).

5. A vehicle lifting drive mechanism for a double-layer parking space system according to claim 4, characterized in that, A rear wheel fork plate guide rail (307) is symmetrically arranged on the parking frame (1) between the rear wheel upper sprocket support (303) and the rear wheel lower sprocket support (304) located on the same side. A rear wheel fork plate roller assembly (308) matching the rear wheel fork plate guide rail (307) is symmetrically arranged on the back of the rear wheel fork plate (306).

6. A vehicle lifting drive mechanism for a double-layer parking space system according to claim 5, characterized in that, The front wheel fork roller assembly (208) and the rear wheel fork roller assembly (308) have the same specifications. Both include roller supports (5) symmetrically arranged on the back of the front wheel fork (206) and the rear wheel fork (306). Several roller trolleys (6) are vertically arranged on the roller supports (5).

7. A vehicle lifting drive mechanism for a double-layer parking space system according to claim 6, characterized in that, A chain fixing seat (11) is provided at the axial position of the two roller supports (5). The two ends of the front wheel lifting chain (205) or the rear wheel lifting chain (305) are respectively fixed to the chain fixing seat (11) by chain bolts (12).

8. A vehicle lifting drive mechanism for a double-layer parking space system according to claim 4, characterized in that, The lifting drive assembly (4) includes a lifting synchronous shaft (402) that is movably connected to the parking frame (1) via a bearing support (401). The two ends of the lifting synchronous shaft (402) are respectively provided with a left sprocket (403) and a right sprocket (404). The left sprocket (403) is connected to the upper sprocket (301) of the rear wheel on the same side by a first left chain (405), and the upper sprocket (301) of the rear wheel is connected to the upper sprocket (201) of the front wheel on the same side by a second left chain (406). The right sprocket (404) is connected to the rear wheel sprocket (301) on the same side via a first right chain (407), and the rear wheel sprocket (301) is connected to the front wheel sprocket (201) on the same side via a second right chain (408).

9. A vehicle lifting drive mechanism for a double-layer parking space system according to claim 8, characterized in that, A shaft gear (409) is sleeved on the lifting synchronous shaft (402). Correspondingly, a lifting motor (410) is provided on the parking frame (1). A lifting motor sprocket (412) is sleeved on the shaft (411) of the lifting motor (410). The lifting motor sprocket (412) and the shaft gear (409) are connected by a shaft chain (413).

10. A vehicle lifting drive mechanism for a double-layer parking space system according to claim 9, characterized in that, The lifting motor (410) is connected to the electrical control box (13) installed on the parking frame (1) to control the lifting motor (410).

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