Supporting device for vehicle maintenance

By introducing a motor drive mechanism and a limit rod connecting rope structure into the vehicle maintenance support device, the problems of laborious operation and safety hazards of hand-cranked jacks have been solved, and automated lifting and efficient operation have been achieved.

CN224118676UActive Publication Date: 2026-04-14JIUQUAN HUATONG AUTOMOBILE SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIUQUAN HUATONG AUTOMOBILE SERVICE CO LTD
Filing Date
2025-07-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The lifting and lowering action of a hand-cranked jack relies entirely on manual operation of the lever, which is laborious and inefficient, and poses a safety hazard, especially in emergency situations.

Method used

The jack body is raised and lowered by a motor-driven mechanism instead of a manual crank. The motor drives the screw to rotate. Combined with the limit rod and connecting rope structure, the automated operation and stability of the equipment are ensured.

Benefits of technology

It significantly reduces the physical exertion of operators, improves the convenience and efficiency of operation, is suitable for people with weaker physical strength, and reduces safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vehicle maintenance supporting device, which relates to the technical field of vehicle maintenance tools, and is characterized by comprising a jack main body, a screw rod, a placing bottom plate and a controller, a sliding rail is arranged at the upper end of the placing bottom plate, a sliding block is connected in the sliding rail in a sliding manner, and a bolt rod is arranged on the side wall of the screw rod in a penetrating manner; a sliding block is arranged on the base, a threaded rod is arranged on the sliding block, a driving mechanism used for driving the threaded rod to rotate is arranged on the side wall of the sliding block, the driving mechanism comprises a motor fixedly connected to the side wall of the sliding block, and an output shaft of the motor is fixedly connected with a sleeve. The screw is driven by electric power to rotate to achieve lifting of the jack body, physical exhaustion of operators is greatly reduced, the jack is particularly suitable for people with weak physical strength, and operation convenience and efficiency are improved.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle repair tools, and in particular to a vehicle repair support device. Background Technology

[0002] Vehicle maintenance support devices are indispensable equipment in daily car maintenance and emergency handling, mainly used in scenarios such as tire changing and chassis repair. Among various vehicle maintenance support devices, the hand-cranked jack is the most widely used. Due to its simple structure, low manufacturing cost, and lack of the need for an additional power source, it has become a standard emergency tool in most vehicles and is usually stored in the trunk for use in emergencies such as tire changing.

[0003] However, hand-cranked jacks have significant drawbacks in actual operation: their lifting and lowering actions rely entirely on manual rotation of the crank, which requires the operator to continuously apply force, consuming a lot of physical strength, and is particularly difficult for users with weaker physical strength; moreover, manual drive is inefficient, which may delay repair opportunities in emergency situations, and the repeated rotation of the crank may also cause the jack to shift due to uneven force application, posing a safety hazard. In order to solve the above problems, this utility model proposes a vehicle repair support device. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a vehicle maintenance support device that solves the problem that the lifting and lowering action of a hand-cranked jack relies entirely on manual rotation of the crank, which is extremely laborious.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a vehicle maintenance support device, comprising: a jack body, a screw, a base plate, and a controller. The upper end of the base plate is provided with a slide rail, and a sliding block is slidably connected within the slide rail. A pin is provided through the side wall of the screw. The side wall of the sliding block is provided with a drive mechanism for driving the screw to rotate. The drive mechanism includes a motor fixedly connected to the side wall of the sliding block. A sleeve is fixedly connected to the output shaft of the motor, and the sleeve is slidably connected to the pin. Two limiting rods are provided on the side wall of the sliding block, and bolts are provided through the side walls of the limiting rods. Limit frames are fixedly connected to both side walls of the jack body, and crossbars are provided through the side walls of the limit frames. The base plate is connected to the slide rail via a connecting mechanism.

[0008] Preferably, the connecting mechanism includes two fixing blocks fixedly connected to the upper end of the placement base plate, and a stop bar is provided through the side wall of the fixing block.

[0009] Preferably, a first connecting rope is fixedly connected to the side wall of the stop bar, and the end of the first connecting rope away from the stop bar is fixedly connected to the side wall of the slide rail.

[0010] Preferably, the side wall of the crossbar is provided with a second connecting rope, and the end of the second connecting rope away from the crossbar is connected to the jack body.

[0011] Preferably, the upper end of the placement base plate is provided with a battery, the bolt sidewall is fixedly connected with a rotating block, and the sliding block sidewall is fixedly connected with a limiting block.

[0012] Preferably, the upper end of the placement base plate is provided with two anti-slip pads, and the upper end of the anti-slip pads is provided with multiple anti-slip protrusions.

[0013] Preferably, the slide rail sidewall has multiple through holes, and the multiple through holes are arranged at equal intervals.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention, by setting up a drive mechanism, can replace the manual operation of a traditional hand-cranked jack. It uses electric power to drive the screw to rotate and raise and lower the jack body, greatly reducing the physical exertion of the operator. It is especially suitable for people with weaker physical strength and improves the convenience and efficiency of operation. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a vehicle maintenance support device proposed in this utility model;

[0018] Figure 2 This is a side view of a vehicle maintenance support device proposed in this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A;

[0020] Figure 4 for Figure 2 Enlarged view of the structure at point B;

[0021] Figure 5 This is another side view of a vehicle maintenance support device proposed in this utility model.

[0022] In the diagram: 1. Jack body, 2. Screw, 3. Crossbar, 4. Limiting rod, 5. Limiting frame, 6. Pin rod, 7. Sleeve, 8. Motor, 9. Bolt, 10. Sliding block, 11. Slide rail, 12. Placement base plate, 13. Controller, 14. Battery, 15. Limiting block, 16. Rotating block, 17. First connecting rope, 18. Fixing block, 19. Stop bar, 20. Second connecting rope, 21. Anti-slip mat. Detailed Implementation

[0023] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0024] This utility model provides a technical solution:

[0025] Please see Figures 1-5 A vehicle maintenance support device includes: a jack body 1, a screw 2, a base plate 12, and a controller 13. In practical applications, the screw 2 is longer. The upper end of the base plate 12 is provided with a slide rail 11, and a sliding block 10 is slidably connected inside the slide rail 11. A pin 6 is provided through the side wall of the screw 2. The side wall of the sliding block 10 is provided with a drive mechanism for driving the screw 2 to rotate. The drive mechanism includes a motor 8 fixedly connected to the side wall of the sliding block 10. A sleeve 7 is fixedly connected to the output shaft of the motor 8. The sleeve 7 is slidably connected to the pin 6. The side wall of the sliding block 10 is provided with two limit rods 4, each including a horizontal part and a vertical part. A bolt 9 is provided through the side wall of the limit rod 4. Limit frames 5 are fixedly connected to both sides of the jack body 1. A horizontal bar 3 is provided through the side wall of the limit frame 5. The base plate 12 is connected to the slide rail 11 through a connecting mechanism.

[0026] Furthermore, the connecting mechanism includes two fixing blocks 18 fixedly connected to the upper end of the placement base plate 12. A stop bar 19 is provided through the side wall of the fixing block 18, so that the slide rail 11 and the placement base plate 12 can be detachably connected, making it convenient for the equipment to be disassembled and placed in the trunk, reducing its volume.

[0027] Furthermore, a first connecting rope 17 is fixedly connected to the side wall of the stop bar 19. The end of the first connecting rope 17 away from the stop bar 19 is fixedly connected to the side wall of the slide rail 11. The first connecting rope 17 forms a flexible connection between the stop bar 19 and the slide rail 11, avoiding the problem of the stop bar 19 being lost due to its small size after disassembly. Small parts of traditional support devices are easily lost, causing the device to be unable to be properly reassembled the next time it is used. However, this design, through a simple connecting rope structure, does not affect the disassembly operation of the stop bar 19, and ensures that it is always associated with the main body of the equipment, thereby improving the practicality and durability of the equipment.

[0028] Furthermore, a second connecting rope 20 is provided on the side wall of the crossbar 3. The end of the second connecting rope 20 away from the crossbar 3 is connected to the jack body 1. The second connecting rope 20 binds the crossbar 3 to the jack body 1, preventing the crossbar 3 from being lost during disassembly or use. As a key mating component of the limiting frame 5, the crossbar 3's absence would cause the connection between the limiting rod 4 and the jack body 1 to fail. This design effectively avoids this problem and ensures the integrity of all components of the equipment.

[0029] Furthermore, a battery 14 is provided on the upper end of the base plate 12, a rotating block 16 is fixedly connected to the side wall of the bolt 9, and a limit block 15 is fixedly connected to the side wall of the sliding block 10. The battery 14 provides an independent power source for the motor 8, without relying on the vehicle's power supply, so that the equipment can still work normally in outdoor scenarios without external power supply. It has a waterproof design, which improves its applicability in complex environments such as rainy days.

[0030] The rotating block 16 increases the gripping area of ​​the bolt 9, making it easier for the operator to quickly tighten or loosen the bolt 9 compared to directly tightening it, and simplifying the connection operation between the limit rod 4 and the sliding block 10.

[0031] The limiting block 15 precisely positions the limiting rod 4 on the sliding block 10, avoiding poor fit between the limiting rod 4 and the limiting frame 5 due to installation deviation, thus ensuring the accuracy and consistency of the assembly of each component.

[0032] Furthermore, the upper end of the base plate 12 is provided with two anti-slip pads 21, and the upper end of the anti-slip pads 21 is provided with multiple anti-slip protrusions. The anti-slip pads 21 and the anti-slip protrusions can increase the friction between the operator's foot and the base plate 12, effectively preventing the foot from slipping when stepping on the base plate 12 to stabilize the equipment. Especially when the ground of the maintenance site is wet or the operator's shoes are oily, it significantly improves the safety of operation.

[0033] Furthermore, the slide rail 11 has multiple through holes on its side wall, which are evenly spaced. The through hole design effectively reduces the overall weight of the equipment without affecting the structural strength of the slide rail 11, making it easier for operators to move and assemble the equipment. At the same time, the through holes can reduce the amount of material used and reduce manufacturing costs, thus balancing economy and practicality.

[0034] In the initial state, the base plate 12 is separated from the slide rail 11, the sliding block 10 is separated from the slide rail 11, the limit rod 4 is separated from the sliding block 10, the pin rod 6 is separated from the screw 2, and the limit rod 4 is separated from the limit frame 5. All equipment is placed in the trunk of the car.

[0035] In practical use, the working principle of this utility model is as follows:

[0036] Remove all maintenance-related components from the trunk, place the sliding block 10 into the slide rail 11, insert the slide rail 11 into the upper end of the base plate 12, insert the side walls of the two fixing blocks 18 through the stop bar 19 and into the slide rail 11, insert the pin 6 into the screw 2, then place the jack body 1 under the support point at the bottom of the car, insert the vertical parts of the two limit rods 4 into the two limit frames 5, insert the horizontal bar 3 into the side wall of the limit frame 5, and attach the other end of the limit rod 4 to the side wall of the sliding block 10. Screw the bolt 9 into the side wall of the limit rod 4 to complete the connection between the sliding block 10 and the limit rod 4.

[0037] The motor 8 is powered by the battery 14. After starting, its output shaft drives the sleeve 7 to rotate. Since the sleeve 7 is slidably connected to the pin 6 on the screw 2 (which transmits torque and allows axial relative displacement), the rotation of the sleeve 7 drives the screw 2 to rotate synchronously through the pin 6. The rotation of the screw 2 is converted into the vertical lifting and lowering action of the jack body 1, thereby replacing the manual operation of the traditional hand-cranked jack, realizing the automatic lifting or lowering of the vehicle, reducing the physical labor consumption of the operator. During this process, the limit rod 4 is inserted into the limit frame 5 and limited by the crossbar 3. With the fixation of the bolt 9, the relative position of the sliding block 10 and the jack body 1 is stable, ensuring the reliability of power transmission.

[0038] After use, disassembly is completed by reversing the operation: loosen bolt 9, pull the limiting rod 4 out of the limiting frame 5, and separate the sliding block 10 from the jack body 1; pull out the pin rod 6 to disengage the screw 2 from the sleeve 7; remove the sliding block 10 from the slide rail 11; pull out the stop rod 19 to separate the slide rail 11 from the placement base plate 12. Finally, the jack body 1, screw 2, slide rail 11, sliding block 10, limiting rod 4 and other components can be disassembled and placed independently, greatly reducing the overall space occupied and making it easy to store in the trunk of a car, solving the problem of inconvenient storage of traditional integrated support devices.

[0039] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A vehicle service support apparatus comprising: The jack body (1), screw (2), base plate (12) and controller (13) are characterized in that: the base plate (12) is provided with a slide rail (11) at the upper end, a sliding block (10) is slidably connected in the slide rail (11), a pin rod (6) is provided through the side wall of the screw (2), a driving mechanism for driving the screw (2) to rotate is provided on the side wall of the sliding block (10), the driving mechanism includes a motor (8) fixedly connected to the side wall of the sliding block (10), a sleeve (7) is fixedly connected to the output shaft of the motor (8), the sleeve (7) is slidably connected to the pin rod (6), two limit rods (4) are provided on the side wall of the sliding block (10), a bolt (9) is provided through the side wall of the limit rod (4), a limit frame (5) is fixedly connected to both sides of the jack body (1), a crossbar (3) is provided through the side wall of the limit frame (5), and the base plate (12) is connected to the slide rail (11) through a connecting mechanism.

2. A vehicle service support apparatus according to claim 1, wherein: The connecting mechanism includes two fixed blocks (18) fixedly connected to the upper end of the placement base plate (12), and a stop bar (19) is provided through the side wall of the fixed block (18).

3. A vehicle service support apparatus according to claim 2, wherein: The first connecting rope (17) is fixedly connected to the side wall of the stop bar (19), and the end of the first connecting rope (17) away from the stop bar (19) is fixedly connected to the side wall of the slide rail (11).

4. A vehicle service support arrangement according to claim 3, wherein: The side wall of the crossbar (3) is provided with a second connecting rope (20), and the end of the second connecting rope (20) away from the crossbar (3) is connected to the jack body (1).

5. A vehicle service support apparatus as claimed in claim 1, wherein: The upper end of the placement base plate (12) is provided with a battery (14), the side wall of the bolt (9) is fixedly connected with a rotating block (16), and the side wall of the sliding block (10) is fixedly connected with a limit block (15).

6. A vehicle service support apparatus according to claim 1, wherein: The upper end of the placement base plate (12) is provided with two anti-slip pads (21), and the upper end of the anti-slip pads (21) is provided with multiple anti-slip protrusions.

7. A vehicle service support apparatus as claimed in claim 1, wherein: The slide rail (11) has multiple through holes on its side wall, and the multiple through holes are arranged at equal intervals.