Adjustable clamp for tire disassembly and assembly

By designing an adjustable clamp for tire removal and installation, and using a motor and electric push rod to automatically adjust the spacing of the support rods and the clamping force, the problems of low tire removal and installation efficiency and wheel rim scratching in the existing technology are solved, and efficient and precise automated tire removal and installation is achieved.

CN224145693UActive Publication Date: 2026-04-21GUANGXI MODERN VOCATIONAL & TECH COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI MODERN VOCATIONAL & TECH COLLEGE
Filing Date
2025-06-17
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing technologies, tire loading and unloading robots require manual adjustment of the support rod spacing when clamping tires, which is inefficient. The nut and sleeve feeding is inaccurate and cannot be adaptively adjusted, resulting in a decrease in continuous operation capability. Furthermore, the uneven distribution of clamping force can easily scratch the wheel hub.

Method used

An adjustable clamp for tire mounting and dismounting has been designed, comprising a rotating component and a clamping component. It utilizes a motor and an electric push rod to automatically adjust the spacing between support rods and the clamping force. Combined with a hydraulic cylinder and self-locking casters, it ensures that the tire is accurately aligned with the screws and adapts to different sizes, avoiding scratches on the wheel rim.

Benefits of technology

It improves tire installation and removal efficiency, achieves automated and precise clamping, reduces manual intervention, adapts to tires of different sizes, avoids wheel rim scratches, and reduces operating costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224145693U_ABST
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Abstract

The utility model provides an adjustable fixture for tire disassembly and assembly, which belongs to the technical field of automobile repair and comprises a bottom plate, a support frame is slidably mounted on the upper portion of the bottom plate, a slider is slidably mounted in the middle of the support frame, and a rotating component is rotatably mounted in the middle of the slider. Through the arrangement of the rotating assembly, when the tire fixing device is used, the motor is started, the motor runs to drive the sleeve to rotate, and the sleeve drives the rotating shaft and the rotating seat to integrally rotate horizontally while rotating, so that the tire can be aligned with screws at different angles; and the rotating seat can independently rotate in the rotating shaft, screws can be conveniently disassembled one by one, the first electric push rod pushes the clamping assembly to finely adjust the position forwards and backwards according to the adjusted telescopic distance, operation is more accurate, and meanwhile the working efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of automobile repair technology, and more specifically, to an adjustable clamp for tire removal and installation. Background Technology

[0002] Vehicle tires are considered wear parts in vehicle repair and often require maintenance and upkeep. Since vehicle tires are generally heavy, it is quite laborious to remove and install them manually, requiring manual assistance to loosen the nuts, which affects the efficiency of tire removal and installation.

[0003] A search revealed that Chinese patent CN220163575U, entitled "A Tire Mounting and Dismounting Robot for Automobile Repair," discloses a tire mounting and dismounting robot for automobile repair. This robot includes a base, an industrial robot, a robotic arm, a motor I, a fixed sleeve, a limiting sleeve I, an electric telescopic rod I, a movable sleeve, a motor II, an electric telescopic rod II, a nut sleeve, a rotating shaft, a splined shaft, a motor IV, gears, a connecting rod, a support rod, and a slide. The industrial robot is mounted on the base, and a robotic arm is mounted at its end. One end of the robotic arm has a fixed sleeve, and the other end is fixedly mounted with a connecting motor I. A rotating shaft is movably mounted within the robotic arm and the fixed sleeve. One end of the rotating shaft is fixedly connected to the output end of motor I, and the other end is movably mounted with a splined shaft, the other end of which is connected to the movable sleeve. This technical solution, by setting an adjustable support rod for overall tire clamping and by setting a movable collection box on the outside of the nut sleeve for collecting and automatically feeding the tightened nuts, can effectively improve tire mounting and dismounting efficiency. However, it still has the following drawbacks:

[0004] (1) When clamping the tire, the support rod spacing needs to be manually adjusted, which reduces efficiency. At the same time, the nut sleeve cannot accurately control the displacement of the collection box when feeding, which can easily cause the nut to jam or fall off. When disassembling and assembling tires of special size, there is a lack of adaptive adjustment capability, requiring repeated machine stops for manual intervention, which reduces the continuous operation capability.

[0005] (2) It cannot open and close synchronously. When clamping tires of different sizes, it is necessary to adjust them one by one. Uneven clamping force distribution can easily cause tire eccentricity. During disassembly and assembly, it is easy to scratch the wheel hub and increase the working cost.

[0006] Therefore, an adjustable clamp for tire mounting and dismounting is proposed. Utility Model Content

[0007] The purpose of this invention is to address the current problem of a lack of adaptive adjustment.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] 1. The present invention is as follows: an adjustable clamp for tire mounting and dismounting, comprising a base plate, a support frame slidably mounted on the upper part of the base plate, a slider slidably mounted on the middle position of the support frame, a rotating assembly rotatably mounted on the middle position of the slider, and a clamping assembly for fixing the tire mounted on the front part of the rotating assembly;

[0010] The rotating assembly includes a first motor located at the middle of the rear of the slider. A sleeve is fitted to the output end of the first motor. The sleeve passes through the middle of the slider. A rotating shaft is rotatably mounted at the middle of the inner side of the sleeve. One end of the rotating shaft is rotatably connected to a rotating seat. A first electric push rod is connected to the right side of the rotating seat.

[0011] As a preferred technical solution of this utility model, the clamping assembly includes a nut fixedly installed at the front of the rotating seat, a bidirectional screw rotatably installed in the middle of the nut, both ends of the bidirectional screw penetrating the housing, a rectangular block installed at the front of the housing, and limit grooves formed on the left and right side walls of the inner side of the rectangular block. A square block is fixedly installed at the upper and lower side of the limit groove, and a second electric push rod is fixedly installed on the upper part of the square block. A gripper is installed at the front of the second electric push rod, and the gripper and the electric push rod are slidably connected by the limit block.

[0012] As a preferred technical solution of this utility model, a second motor is fixedly installed at the middle of the rear part of the base plate, and a connecting rod is installed at the output end of the second motor. The connecting rod is located in the middle of the base plate. Tracks are provided on both the left and right sides of the upper part of the base plate. The tracks are located outside the connecting rods, and the tracks and the connecting rods are connected by a sliding block.

[0013] As a preferred technical solution of this utility model, a latch is fixedly installed at the middle position of the front part of the base plate, a hydraulic cylinder is installed at the middle position of the latch, and a hydraulic rod is connected to one end of the hydraulic cylinder.

[0014] As a preferred technical solution of this utility model, a positioning module is fixedly installed on the front of the rotating seat to ensure that the tire axle is aligned with the equipment, and the positioning module is located on the inner side of the gripper.

[0015] As a preferred technical solution of this utility model, a support rod is slidably installed at the rear of the support frame, the upper part of the support rod is in contact with the upper rear side of the support frame, the lower part of the support rod is in contact with the connecting rod, and the support rod and the support frame are fixed together with bolts.

[0016] As a preferred technical solution of this utility model, a self-locking universal wheel is fixedly installed on the lower part of the base plate. The self-locking universal wheel and the base plate are fixedly connected by bolts. The self-locking universal wheel has four sets evenly distributed around the lower part of the base plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. With the rotating component, the motor is started when in use. The motor drives the sleeve to rotate. While rotating, the sleeve, along with the rotating shaft and the rotating seat, rotates horizontally, allowing the tire to be aligned with the screws at different angles. The rotating shaft also allows the rotating seat to rotate independently, making it easy to remove screws one by one. The first electric push rod pushes the clamping component to make fine adjustments to its position by adjusting the extension distance, making the operation more precise and greatly improving work efficiency.

[0019] 2. With the clamping assembly in place, the first electric push rod extends outward during use, pushing the housings on both sides simultaneously. The housings unfold outward along different threads on the bidirectional screw, and when they unfold to the same width as the tire, they close inward like arms to clamp the tire. At the same time, the second electric push rod inside the housing pushes the block to move, which in turn drives the gripper to move smoothly up and down in the limiting groove. The gripper can be adjusted according to the size of different tires, which is more efficient than manually adjusting the clamp and can also avoid scratching the wheel rim. Attached Figure Description

[0020] Figure 1 A schematic diagram of the adjustable clamp for tire mounting and dismounting provided by this utility model;

[0021] Figure 2 A side view of the adjustable clamp for tire mounting and dismounting provided by this utility model;

[0022] Figure 3 A schematic diagram of the rotating component structure of the adjustable clamp for tire mounting and dismounting provided by this utility model;

[0023] Figure 4 A partial structural diagram of the clamping assembly of the adjustable clamp for tire mounting and dismounting provided by this utility model;

[0024] Figure 5 This is a partial cross-sectional structural diagram of the clamping assembly of the adjustable clamp for tire mounting and dismounting provided by this utility model.

[0025] The diagram shows: 1. Base plate; 2. Support frame; 3. Slider; 4. Rotating assembly; 401. First motor; 402. Sleeve; 403. Rotating shaft; 404. Rotating seat; 405. First electric push rod; 5. Clamping assembly; 501. Nut; 502. Bidirectional screw; 503. Housing; 504. Rectangular block; 505. Limiting groove; 506. Square block; 507. Second electric push rod; 508. Grip; 6. Second motor; 7. Connecting rod; 8. Track; 9. Lock; 10. Hydraulic cylinder; 11. Hydraulic rod; 12. Positioning module; 13. Support rod; 14. Self-locking caster wheel. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] like Figures 1-3 As shown, this embodiment proposes an adjustable clamp for tire removal and installation, including a base plate 1, a support frame 2 slidably mounted on the upper part of the base plate 1, a slider 3 slidably mounted on the middle position of the support frame 2, a rotating component 4 rotatably mounted on the middle position of the slider 3, and a clamping component 5 for fixing the tire mounted on the front part of the rotating component 4.

[0031] The rotating assembly 4 includes a first motor 401 located at the rear center of the slider 3. A sleeve 402 is fitted onto the output end of the first motor 401, passing through the middle of the slider 3. A rotating shaft 403 is rotatably mounted at the center of the inner side of the sleeve 402. One end of the rotating shaft 403 is rotatably connected to a rotating seat 404, and the right side of the rotating seat 404 is connected to a first electric push rod 405. In use, the first motor is started, driving the sleeve 402 to rotate. While rotating, the sleeve 402, along with the rotating shaft 403 and the rotating seat 404, rotates horizontally, allowing the tire to align with screws at different angles. The rotating shaft 403 also allows the rotating seat 404 to rotate independently, facilitating the removal of screws one by one. The first electric push rod 405, by adjusting the extension distance, pushes the clamping assembly 5 back and forth for fine-tuning the position, making the operation more precise and greatly improving work efficiency.

[0032] like Figures 1-5As shown, in a preferred embodiment, based on the above method, the clamping assembly 5 further includes a nut 501 fixedly installed at the front of the rotating seat 404, a bidirectional screw 502 rotatably installed in the middle of the nut 501, both ends of the bidirectional screw 502 penetrating the housing 503, a rectangular block 504 installed at the front of the housing 503, and limit grooves 505 formed on the left and right side walls inside the rectangular block 504, a square block 506 fixedly installed at the upper and lower side of the limit groove 505, a second electric push rod 507 fixedly installed at the upper part of the square block 506, and a gripper 508 installed at the front of the second electric push rod 507, the gripper 508 and the electric push rod being slidably connected by the limit block. When in use, the first electric push rod 405 extends outward, pushing the housings 503 on both sides. The housings 503 unfold outward along different threads on the bidirectional screw 502. When they unfold to the same width as the tire, they close inward like arms to clamp the tire. At the same time, the second electric push rod 507 inside the housing 503 pushes the block 506 to move. While moving, the gripper 508 moves smoothly up and down in the limiting groove 505. The gripper 508 can be adjusted according to the size of different tires, which is more efficient than manually adjusting the clamp and can also avoid scratching the wheel rim.

[0033] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, a second motor 6 is further fixedly installed at the rear center of the base plate 1. A connecting rod 7 is installed at the output end of the second motor 6. The connecting rod 7 is located in the middle of the base plate 1. Tracks 8 are provided on both the left and right sides of the upper part of the base plate 1. The tracks 8 are located outside the connecting rod 7, and the tracks 8 are connected to the connecting rod 7 by a sliding block. In use, the second motor 6 rotates, driving the connecting rod 7 to rotate. When rotating, the sliding block slides on the track 8, pushing the entire support frame 2 to automatically align the tire position.

[0034] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, a latch 9 is fixedly installed at the middle position of the front part of the base plate 1, and a hydraulic cylinder 10 is installed at the middle position of the latch 9. One end of the hydraulic cylinder 10 is connected to a hydraulic rod 11. In use, the hydraulic cylinder 10 pushes the hydraulic rod 11 to hold the tire in place, making it easy to install and remove large tires. In an emergency, it can also lock the tire instantly.

[0035] like Figure 1 and Figure 3As shown, in a preferred embodiment, based on the above method, a positioning module 12 is further fixedly installed on the front of the rotating seat 404 to ensure that the tire axle is aligned with the equipment. The positioning module 12 is located inside the gripper 508. A crosshair is emitted by laser or infrared to accurately align with the center of the wheel hub. When the tire is clamped, the axle deviation is detected, and the rotating seat 404 is automatically directed to rotate and adjust the angle so that the tire axle is completely aligned with the rotation center of the equipment to avoid scratching the wheel hub.

[0036] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, a support rod 13 is further slidably installed at the rear of the support frame 2. The upper part of the support rod 13 is attached to the upper rear side of the support frame 2, and the lower part of the support rod 13 is attached to the connecting rod 7. The support rod 13 and the support frame 2 are fixed together with bolts. In use, the support rod 13 moves back and forth according to the support frame 2 and the connecting rod 7, which increases the stability of the equipment.

[0037] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, a self-locking caster wheel 14 is further fixedly installed on the lower part of the base plate 1. The self-locking caster wheel 14 and the base plate 1 are fixedly connected by bolts. Four sets of self-locking caster wheels 14 are evenly distributed around the lower part of the base plate 1. The self-locking caster wheels 14 can facilitate the movement of equipment according to different scenarios, while providing stability.

[0038] Specifically, when using this adjustable clamp for tire removal and installation: the second motor 6 rotates, driving the connecting rod 7 to rotate. During rotation, the slide block slides on the track 8, pushing the entire support frame 2 to automatically align the tire. The hydraulic cylinder 10 then pushes the hydraulic rod 11 to hold the tire in place. The motor drives the sleeve 402 to rotate. Simultaneously, the sleeve 402, along with the rotating shaft 403 and rotating seat 404, rotates horizontally, allowing the tire to align with screws at different angles. The rotating shaft 403 also allows the rotating seat 404 to rotate independently, facilitating the removal of screws one by one. The first electric push rod 405 adjusts according to the... The entire telescopic distance pushes the clamping assembly 5 back and forth to make slight adjustments to its position. The first electric push rod 405 extends outward, pushing the housings 503 on both sides at the same time. The housings 503 unfold outward along different threads on the bidirectional screw 502. When they unfold to the same width as the tire, they close inward like arms to clamp the tire. At the same time, the second electric push rod 507 inside the housing 503 pushes the block 506 to move. While moving, the gripper 508 moves smoothly up and down in the limiting groove 505. The gripper 508 is adjusted according to the size of different tires, which is more efficient than manually adjusting the clamp.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An adjustable clamp for tire dismounting, comprising a base plate (1), characterized in that, A support frame (2) is slidably installed on the upper part of the base plate (1), a slider (3) is slidably installed in the middle position of the support frame (2), a rotating component (4) is rotatably installed in the middle position of the slider (3), and a clamping component (5) for fixing the tire is installed in front of the rotating component (4). The rotating assembly (4) includes a first motor (401) located at the middle of the rear of the slider (3). A sleeve (402) is installed at the output end of the first motor (401). The sleeve (402) passes through the middle of the slider (3). A rotating shaft (403) is rotatably installed at the middle of the inner side of the sleeve (402). One end of the rotating shaft (403) is rotatably connected to a rotating seat (404). A first electric push rod (405) is connected to the right side of the rotating seat (404).

2. The adjustable clamp for tire dismounting according to claim 1, characterized in that, The clamping assembly (5) includes a nut (501) fixedly installed at the front of the rotating seat (404). A bidirectional screw (502) is rotatably installed in the middle of the nut (501). Both ends of the bidirectional screw (502) pass through a housing (503). A rectangular block (504) is installed at the front of the housing (503). Limiting grooves (505) are opened on the left and right side walls inside the rectangular block (504). A square block (506) is fixedly installed at the lower part of the upper part of the limiting groove (505). A second electric push rod (507) is fixedly installed on the upper part of the square block (506). A gripper (508) is installed at the front of the second electric push rod (507). The gripper (508) and the electric push rod are slidably connected by the limiting block.

3. The adjustable clamp for tire dismounting according to claim 1, wherein A second motor (6) is fixedly installed at the middle of the rear part of the base plate (1). A connecting rod (7) is installed at the output end of the second motor (6). The connecting rod (7) is located in the middle of the base plate (1). Tracks (8) are provided on the upper left and right sides of the base plate (1). The tracks (8) are located outside the connecting rod (7). The tracks (8) and the connecting rod (7) are connected by a sliding block.

4. The adjustable clamp for tire dismounting according to claim 1, wherein A latch (9) is fixedly installed at the middle position of the front part of the base plate (1), and a hydraulic cylinder (10) is installed at the middle position of the latch (9). One end of the hydraulic cylinder (10) is connected to a hydraulic rod (11).

5. The adjustable clamp for tire dismounting according to claim 1, wherein The rotating seat (404) is fixedly equipped with a positioning module (12) to ensure that the tire axle is aligned with the equipment. The positioning module (12) is located inside the gripper (508).

6. The adjustable clamp for tire changing according to claim 1, wherein A support rod (13) is slidably installed at the rear of the support frame (2). The upper part of the support rod (13) is attached to the upper rear side of the support frame (2), and the lower part of the support rod (13) is attached to the connecting rod (7). The support rod (13) and the support frame (2) are fixed together with bolts.

7. The adjustable clamp for tire changing according to claim 1, wherein The bottom part of the base plate (1) is fixedly installed with self-locking casters (14), and the self-locking casters (14) and the base plate (1) are fixedly connected by bolts. There are four sets of self-locking casters (14) evenly distributed around the bottom part of the base plate (1).

Citation Information

Patent Citations

  • Tire dismounting and mounting robot for automobile repair

    CN220163575U