Jacking device for motor vehicle detection
By using a gear transmission driven by an electric motor and a bidirectional threaded rod mechanism controlled by a servo motor, the problem of existing vehicle lifting devices being unable to adapt to vehicles of different sizes is solved, achieving the effect of flexibly supporting and stably lifting heavy vehicles.
Patent Information
- Application Number
- CN202520470872.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing vehicle lifting devices are difficult to adjust the support platform flexibly to accommodate vehicles of different sizes, resulting in inconvenience in lifting.
The system employs a gear transmission system driven by an electric motor and a bidirectional threaded rod mechanism controlled by a servo motor. The gear transmission drives the threaded column and threaded sleeve rod, and combined with the synchronous belt transmission driven by the servo motor, it enables flexible adjustment of the support mechanism. The rotation of the synchronous belt is controlled by a PLC system to adjust the position of the support plate to accommodate motor vehicles of different sizes.
It enables flexible support and adjustment for motor vehicles of different sizes, and can lift heavier vehicles, avoiding the problem of insufficient load-bearing capacity of a single drive device, thus improving the stability and adaptability of the device.
Smart Images

Figure CN223825988U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle inspection technology, specifically to a lifting device for motor vehicle inspection. Background Technology
[0002] Motor vehicles are an indispensable means of transportation and carrying in today's society. After a long period of use, many hidden dangers will appear. If these hidden dangers are not dealt with in time, they can easily cause unavoidable disasters. Lifting devices have the function of lifting motor vehicles, which facilitates the maintenance of motor vehicles.
[0003] The current publication number CN214243664U discloses a lifting device for inspecting transport vehicles, including a support base and a lifting mechanism. The lower end surface of the support base is provided with several mounting slots, and the lifting mechanism is provided on the upper end surface of the support base. The lifting mechanism is composed of several fixed plates, hydraulic telescopic cylinders, several connecting plates, several connecting columns, several first adjusting plates, several second adjusting plates, and lifting plates. Fixed plates are symmetrically arranged on the upper end surface of the support base, and hydraulic telescopic cylinders are provided on the opposite side of each fixed plate.
[0004] To address the issue of vehicle lifting in the aforementioned solutions, existing technologies employ hydraulic telescopic cylinders and adjusting plates and lifting plates for lifting adjustment. However, this approach still faces the problem of not being able to flexibly adjust the support platform for vehicles of different sizes, thus making it inconvenient to lift vehicles of varying sizes. Utility Model Content
[0005] The purpose of this invention is to provide a lifting device for motor vehicle inspection, so as to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A lifting device for motor vehicle inspection includes a mobile vehicle and a support mechanism, wherein the lifting mechanism and auxiliary support components are mounted on the surface of the mobile vehicle.
[0008] The lifting mechanism includes a housing, which is fixedly connected to the surface of the mobile vehicle. A motor is fixedly connected inside the housing. A first gear is fixedly connected to the output end of the motor. A second gear and a third gear are meshed on both sides of the first gear. A threaded column is fixedly connected to the surface of the second gear and the third gear. The threaded column is rotatably connected inside the housing. A threaded sleeve is threadedly connected to one end of the threaded column. A support mechanism is fixedly connected to one end of the threaded sleeve.
[0009] The support mechanism includes a mounting plate and a servo motor. The mounting plate is fixedly connected to one end of the threaded sleeve rod. A support block is fixedly connected to the surface of the mounting plate, and a bidirectional threaded rod is threadedly connected to the surface of the support block.
[0010] A further improvement of this utility model is that: the servo motor is fixedly connected to one end of the mounting plate, the output end of the servo motor is fixedly connected to a first synchronous pulley, the surface of the first synchronous pulley is connected to a synchronous belt, one end of the first synchronous pulley is fixedly connected to a bidirectional threaded rod, the first synchronous pulley drives the synchronous belt to perform transmission, the synchronous belt drives the second synchronous pulley to rotate, thereby driving the bidirectional threaded rod to rotate.
[0011] A further improvement of this utility model is that: one end of the first synchronous pulley is connected to a second synchronous pulley, one end of the second synchronous pulley is fixedly connected to a bidirectional threaded rod, a linkage block is threadedly connected to the surface of the bidirectional threaded rod, one end of the linkage block is fixedly connected to a first support plate and a second support plate, the surfaces of the first support plate and the second support plate are provided with connecting grooves, a connecting plate is fixedly connected to the surfaces of the first support plate and the second support plate, the first support plate and the second support plate are cross-movably connected, and when the bidirectional threaded rod rotates clockwise, it drives the first support plate and the second support plate on the linkage block to move towards the middle of the bidirectional threaded rod.
[0012] A further improvement of the present invention is that the auxiliary support includes two support rods, which are respectively fixedly connected to the two ends of the moving vehicle and the mounting plate. A cylinder is movably connected to the surface of the support rod, and an external force is applied to the mounting plate to push the support rod to slide within the cylinder.
[0013] A further improvement of this utility model is that: a sliding groove is provided inside the cylinder, and a support block is fixedly connected to one end of the support rod. The pulley rolls in the sliding groove to reduce friction, and the spring is compressed to store energy in the support rod and the support block.
[0014] A further improvement of this utility model is that: pulleys are installed at both ends of the support block, the pulleys are movably connected inside the slide groove, and a spring is fixedly connected to one end of the support block. When descending, the spring releases energy to push the support block and support rod back to their original positions.
[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0016] 1. This utility model provides a lifting device for motor vehicle inspection. A servo motor is started via a PLC system, which drives a first synchronous pulley to rotate. The first synchronous pulley drives a synchronous belt, which in turn drives a second synchronous pulley to rotate, thereby driving a bidirectional threaded rod to rotate. The synchronous belt is a trapezoidal tooth synchronous belt. When the bidirectional threaded rod rotates clockwise, it causes the first and second support plates on the linkage block to move towards the center of the bidirectional threaded rod. The connecting grooves on the first and second support plates interlock with the connecting plate, causing the first and second support plates to merge. When the bidirectional threaded rod rotates counterclockwise, the first and second support plates move towards both ends of the bidirectional threaded rod, increasing the support area. This allows the support mechanism to be adjusted according to the size of the motor vehicle, facilitating the lifting device's inspection of the vehicle.
[0017] 2. This utility model provides a lifting device for motor vehicle inspection. When the motor is started, the motor drives the first gear to rotate, the first gear drives the second gear and the third gear to rotate, and the second gear and the third gear drive the threaded column to rotate. The threaded column is threadedly connected to the threaded sleeve rod, which drives the support mechanism to lift. This allows for the lifting of some heavier motor vehicles and avoids the situation where most AGV lifting devices are single-drive and have low load-bearing capacity, making it inconvenient to lift heavier motor vehicles. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the support mechanism of this utility model;
[0020] Figure 3 This is a schematic diagram of the lifting mechanism of this utility model;
[0021] Figure 4 This is a structural schematic diagram of the auxiliary support component of this utility model.
[0022] In the diagram: 1. Moving vehicle; 2. Lifting mechanism; 20. Housing; 21. Motor; 22. First gear; 23. Threaded column; 24. Second gear; 25. Third gear; 26. Threaded sleeve; 3. Auxiliary support component; 30. Cylinder; 31. Support rod; 32. Support block; 33. Slide groove; 35. Spring; 36. Pulley; 4. Support mechanism; 40. Mounting plate; 41. Support block; 42. Bidirectional threaded rod; 43. Synchronous belt; 44. First synchronous pulley; 45. Servo motor; 46. Second synchronous pulley; 47. Linkage block; 48. First support plate; 49. Second support plate; 491. Connecting plate; 492. Connecting groove. Detailed Implementation
[0023] The present invention will be further described in detail below with reference to embodiments:
[0024] Example 1
[0025] like Figure 1-4 As shown, this utility model provides a lifting device for motor vehicle inspection, including a mobile vehicle 1 and a support mechanism 4. A lifting mechanism 2 and auxiliary support components 3 are mounted on the surface of the mobile vehicle 1. The lifting mechanism 2 includes a housing 20, which is fixedly connected to the surface of the mobile vehicle 1. A motor 21 is fixedly connected inside the housing 20. A first gear 22 is fixedly connected to the output end of the motor 21. A second gear 24 and a third gear 25 are meshed on both sides of the first gear 22. Threaded posts 23 are fixedly connected to the surfaces of the second gear 24 and the third gear 25, and are rotatably connected inside the housing 20. A threaded sleeve 26 is threadedly connected to one end of the threaded post 23. A support mechanism 4 is fixedly connected to one end of the threaded sleeve 26. The support mechanism 4 includes a mounting plate 40 and a servo motor 45. The mounting plate 40 is fixedly connected to one end of the threaded sleeve 26. A support block 41 is fixedly connected, and a bidirectional threaded rod 42 is threadedly connected to the surface of the support block 41. A servo motor 45 is fixedly connected to one end of the mounting plate 40. A first synchronous pulley 44 is fixedly connected to the output end of the servo motor 45. A synchronous belt 43 is drivenly connected to the surface of the first synchronous pulley 44. A bidirectional threaded rod 42 is fixedly connected to one end of the first synchronous pulley 44. A second synchronous pulley 46 is drivenly connected to one end of the first synchronous pulley 44. A bidirectional threaded rod 42 is fixedly connected to one end of the second synchronous pulley 46. A linkage block 47 is threadedly connected to the surface of the bidirectional threaded rod 42. A first support plate 48 and a second support plate 49 are fixedly connected to one end of the linkage block 47. A connecting groove 492 is opened on the surface of the first support plate 48 and the second support plate 49. A connecting plate 491 is fixedly connected to the surface of the first support plate 48 and the second support plate 49. The first support plate 48 and the second support plate 49 are cross-movably connected.
[0026] Specifically, when lifting a vehicle, motor 21 is started, which drives the first gear 22 to rotate. The first gear 22 drives the second gear 24 and the third gear 25 to rotate, which in turn drives the threaded column 23 to rotate. The threaded column 23 is threadedly connected to the threaded sleeve 26, which in turn drives the support mechanism 4 to lift the vehicle. This allows for the lifting of heavier vehicles and avoids the situation where most AGV lifting devices are single-drive and have low load-bearing capacity, making them unsuitable for lifting heavier vehicles. Before lifting the vehicle, the support mechanism 4 can be adjusted according to the size of the vehicle. The servo motor 45 is started via the PLC system, and the servo motor 45 drives the first synchronous pulley 44 to rotate. When the first synchronous pulley 44 rotates, it drives the synchronous belt 43 to rotate, which in turn drives the second synchronous pulley 46 to rotate, thereby driving the bidirectional threaded rod 42 to rotate. The synchronous belt 43 is a trapezoidal tooth synchronous belt. When the bidirectional threaded rod 42 rotates clockwise, it drives the first support plate 48 and the second support plate 49 on the linkage block 47 to move towards the middle of the bidirectional threaded rod 42. The connecting groove 492 on the first support plate 48 and the second support plate 49 cross-fits with the connecting plate 491, so that the first support plate 48 and the second support plate 49 merge. When the bidirectional threaded rod 42 rotates counterclockwise, the first support plate 48 and the second support plate 49 move towards both ends of the bidirectional threaded rod 42, thereby increasing the support area and allowing the support mechanism 4 to be adjusted according to the size of the vehicle.
[0027] Example 2
[0028] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the auxiliary support 3 includes a support rod 31, there are two support rods 31, the support rods 31 are respectively fixedly connected to the two ends of the mobile vehicle 1 and the mounting plate 40, the surface of the support rod 31 is movably connected to a cylinder 30, the inside of the cylinder 30 is provided with a sliding groove 33, one end of the support rod 31 is fixedly connected to a support block 32, both ends of the support block 32 are equipped with pulleys 36, the pulleys 36 are movably connected to the inside of the sliding groove 33, and one end of the support block 32 is fixedly connected to a spring 35;
[0029] Specifically, when lifting is required, external force is applied to the mounting plate 40, pushing the support rod 31 to slide within the cylinder 30. The pulley 36 rolls within the groove 33, reducing friction. The spring 35 is compressed, storing energy in the support rod 31 and the support block 32. Through the above settings, the sliding effect can be increased during lifting, avoiding wear on the support rod 31, support block 32, and cylinder 30 due to prolonged operation. During descent, the spring 35 releases energy, pushing the support block 32 and support rod 31 back to their original positions, causing the mounting plate 40 to descend. Through the above settings, the overall stability of the device can be increased when the support mechanism 4 lifts the vehicle, preventing breakage due to excessive weight of the vehicle.
[0030] The working principle of this motor vehicle inspection lifting device will be explained in detail below.
[0031] like Figure 1-4 As shown, the motor 21 is started, which drives the first gear 22 to rotate. The first gear 22 drives the second gear 24 and the third gear 25 to rotate, which in turn drives the threaded column 23 to rotate. The threaded column 23 is threadedly connected to the threaded sleeve 26, which drives the support mechanism 4 to lift. This allows for the lifting of some heavier vehicles and avoids the situation where most AGV lifting devices are single-drive and have low load-bearing capacity, making it inconvenient to lift heavier vehicles. Before lifting a vehicle, the support mechanism 4 can be adjusted according to the size of the vehicle. The servo motor 45 is started through the PLC system, which drives the first synchronous pulley 44 to rotate. The first synchronous pulley 44 drives the synchronous belt 43 to rotate, which in turn drives the second synchronous pulley 46 to rotate, thereby driving the bidirectional threaded rod 42 to rotate. The synchronous belt 43 is a trapezoidal tooth synchronous belt. When the bidirectional threaded rod 42 rotates clockwise... When rotating, the first support plate 48 and the second support plate 49 on the linkage block 47 move towards the middle of the bidirectional threaded rod 42. The connecting groove 492 on the first support plate 48 and the second support plate 49 cross-fits with the connecting plate 491, so that the first support plate 48 and the second support plate 49 merge. When the bidirectional threaded rod 42 rotates counterclockwise, the first support plate 48 and the second support plate 49 move towards both ends of the bidirectional threaded rod 42, thereby increasing the support area. This allows the support mechanism 4 to be adjusted according to the size of the vehicle. Through the above settings, the sliding effect can be increased during lifting, avoiding wear on the support rod 31, support block 32 and cylinder 30 due to long-term operation. During descent, the spring 35 releases energy, pushing the support block 32 and support rod 31 back to their original positions, and causing the mounting plate 40 to descend. Through the above settings, the overall stability of the device can be increased when the support mechanism 4 lifts the vehicle, avoiding breakage in the middle due to excessive weight of the vehicle.
[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A lifting device for motor vehicle inspection, comprising a mobile vehicle (1) and a support mechanism (4), characterized in that: The surface of the mobile vehicle (1) is equipped with a lifting mechanism (2) and auxiliary support components (3); The lifting mechanism (2) includes a housing (20), which is fixedly connected to the surface of the mobile vehicle (1). A motor (21) is fixedly connected inside the housing (20). A first gear (22) is fixedly connected to the output end of the motor (21). A second gear (24) and a third gear (25) are meshed on both sides of the first gear (22). A threaded column (23) is fixedly connected to the surface of the second gear (24) and the third gear (25). The threaded column (23) is rotatably connected inside the housing (20). A threaded sleeve (26) is threadedly connected to one end of the threaded column (23). A support mechanism (4) is fixedly connected to one end of the threaded sleeve (26). The support mechanism (4) includes a mounting plate (40) and a servo motor (45). The mounting plate (40) is fixedly connected to one end of the threaded sleeve rod (26). A support block (41) is fixedly connected to the surface of the mounting plate (40), and a bidirectional threaded rod (42) is threadedly connected to the surface of the support block (41).
2. The lifting device for motor vehicle inspection according to claim 1, characterized in that: The servo motor (45) is fixedly connected to one end of the mounting plate (40). The output end of the servo motor (45) is fixedly connected to a first synchronous pulley (44). The surface of the first synchronous pulley (44) is connected to a synchronous belt (43). One end of the first synchronous pulley (44) is fixedly connected to a bidirectional threaded rod (42).
3. A lifting device for motor vehicle inspection according to claim 2, characterized in that: One end of the first synchronous pulley (44) is connected to a second synchronous pulley (46), and one end of the second synchronous pulley (46) is fixedly connected to a bidirectional threaded rod (42). The surface of the bidirectional threaded rod (42) is threadedly connected to a linkage block (47). One end of the linkage block (47) is fixedly connected to a first support plate (48) and a second support plate (49). The surfaces of the first support plate (48) and the second support plate (49) are provided with connecting grooves (492). The surfaces of the first support plate (48) and the second support plate (49) are fixedly connected to a connecting plate (491). The first support plate (48) and the second support plate (49) are cross-movably connected.
4. A lifting device for motor vehicle inspection according to claim 1, characterized in that: The auxiliary support (3) includes two support rods (31), which are fixedly connected to the two ends of the mobile vehicle (1) and the mounting plate (40), respectively. The surface of the support rod (31) is movably connected to a cylinder (30).
5. A lifting device for motor vehicle inspection according to claim 4, characterized in that: The cylinder (30) has a sliding groove (33) inside, and a support block (32) is fixedly connected to one end of the support rod (31).
6. A lifting device for motor vehicle inspection according to claim 5, characterized in that: The support block (32) is equipped with pulleys (36) at both ends, the pulleys (36) are movably connected inside the slide groove (33), and a spring (35) is fixedly connected to one end of the support block (32).
Citation Information
Patent Citations
Jacking device for transport vehicle detection
CN214243664U