Tire expanding device for automobile maintenance
By designing a tire expansion device for automotive repair, a circular platform and movable mounting blocks are used to simultaneously expand multiple parts of the tire, solving the problem of low tire repair efficiency in existing technologies and improving the overall efficiency and ease of observation of tire repair.
Patent Information
- Application Number
- CN202520701929.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-15
AI Technical Summary
Existing tire expanders can only expand one part of a tire, resulting in low tire repair efficiency. When a tire needs to be repaired in two or more places, it must be operated separately, which further reduces efficiency.
Design a tire expansion device for automotive repair, comprising a circular platform, a movable mounting block, and a tire expansion assembly. The movable mounting block drives the tire expansion assembly to simultaneously expand the tire at multiple points inside the tire cavity. Combined with a universal arm and an LED high-intensity light, the observation efficiency is improved.
It enables simultaneous expansion of multiple parts of the tire, improving maintenance efficiency, facilitating observation of the tire's interior, and enhancing the overall efficiency of tire repair.
Smart Images

Figure CN223890728U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive repair technology, and in particular relates to an automotive tire expansion device. Background Technology
[0002] With social development and the continuous improvement of people's living standards, there are more and more vehicles of all sizes, and the phenomenon of tire punctures occurs from time to time. Since replacing new tires is expensive, there is a considerable demand for tire repair services. Tire repair requires the use of a tire expander.
[0003] Currently, commonly used tire expanders can only expand one part of the tire. When two or more parts of the tire need to be repaired, they need to be expanded and repaired separately, resulting in low tire repair efficiency. Therefore, it is necessary to design a tire expander for automotive repair to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a tire expansion device for automobile repair, which has the advantage of improving repair efficiency, thereby solving the aforementioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A tire expansion device for automobile repair, comprising a circular platform and a tire body, wherein the tire body is placed at the center of the top of the circular platform; a movable mounting block and a tire expansion assembly, wherein the tire expansion assembly is installed on the top of the movable mounting block, the movable mounting block slides on the top of the circular platform, the number of movable mounting blocks is N, and the N movable mounting blocks are arranged in a ring on the top of the circular platform, and the tire body is expanded by the tire expansion assembly, wherein the number of N is at least three; a universal arm and an LED high-intensity light, wherein the universal arm is fixedly installed at the center of the top of the circular platform, and the LED high-intensity light is installed on the side of the universal arm away from the circular platform.
[0006] Furthermore, the number of N is five.
[0007] Furthermore, the top of the circular platform is provided with a guide groove for the movable mounting block to slide.
[0008] Furthermore, a lifting platform is slidably connected to the inner cavity of the circular platform, and N push rods are rotatably connected to the top of the lifting platform. The bottom plate of the movable mounting block extends into the inner cavity of the circular platform and is rotatably connected to the top of the push rods.
[0009] Furthermore, a threaded rod two is rotatably connected at the center of the inner cavity of the circular platform, the lifting platform is threadedly connected to the surface of the threaded rod two, and a motor is fixedly installed at the bottom of the inner cavity of the circular platform, with the output shaft of the motor fixedly connected to the threaded rod two.
[0010] Furthermore, the tire expander assembly includes a support plate fixedly installed on the top of the movable mounting block, a fixed tire expander plate fixedly installed on the surface of the support plate, and a movable tire expander plate provided on the top of the fixed tire expander plate, the movable tire expander plate sliding up and down on the surface of the support plate.
[0011] Furthermore, a sliding block is fixedly connected to the surface of the movable tire expander plate. The sliding block slides up and down in the inner cavity of the support plate. A threaded rod is rotatably connected to the inner cavity of the support plate. The sliding block is threadedly connected to the surface of the threaded rod. The top of the threaded rod extends to the outer side of the support plate and is fixedly fitted with a handwheel.
[0012] The beneficial effects of this utility model are:
[0013] 1. This utility model places the tire body on the top of a circular platform, then slides the movable mounting block to drive the tire expansion component into the inner cavity of the tire body, and then performs multiple simultaneous tire expansion operations on the circular platform through the tire expansion component, thereby improving tire expansion efficiency and maintenance efficiency.
[0014] 2. This utility model, through the setting of a universal arm and an LED high-intensity light, allows the LED high-intensity light to be placed in the area that needs illumination via the universal arm. This makes it easier for users to observe the inside of the tire body, thereby finding the location of the puncture and improving repair efficiency. Attached Figure Description
[0015] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.
[0016] Figure 1 This is a perspective view of one embodiment of the present invention in use;
[0017] Figure 2 This is a perspective view of one embodiment of the present utility model;
[0018] Figure 3 This is a three-dimensional disassembled schematic diagram of one embodiment of the present utility model;
[0019] Figure 4 This is a three-dimensional disassembled schematic diagram of a tire expansion component according to an embodiment of the present invention.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Circular platform; 2. Tire body; 3. Tire expander assembly; 31. Support plate; 32. Fixed tire expander plate; 33. Movable tire expander plate; 34. Sliding block; 35. Threaded rod one; 36. Handwheel; 4. Universal arm; 5. LED high-intensity light; 6. Movable mounting block; 7. Guide groove; 8. Lifting platform; 9. Push rod; 10. Threaded rod two; 11. Motor. Detailed Implementation
[0022] In the following description, embodiments of the automotive tire expansion device of this utility model will be described with reference to the accompanying drawings.
[0023] Figure 1-4 This invention illustrates an embodiment of a vehicle tire expansion device, which includes: a circular platform 1 and a tire body 2, with the tire body 2 placed at the center of the top of the circular platform 1.
[0024] Among them, there are movable mounting blocks 6 and tire expanding components 3. The tire expanding components 3 are installed on the top of the movable mounting blocks 6. The movable mounting blocks 6 slide on the top of the circular platform 1. There are N movable mounting blocks 6 in total. The N movable mounting blocks 6 are arranged in a ring on the top of the circular platform 1. Specifically, the top of the circular platform 1 is provided with guide grooves 7 for the movable mounting blocks 6 to slide. The tire expanding components 3 are used to expand the tire body 2. The number of N is at least three. Specifically, the number of N is five. Specifically, the inner cavity of the circular platform 1 is slidably connected to a lifting platform 8. The top of the lifting platform 8 is rotatably connected to N push rods 9. The bottom plate of the movable mounting blocks 6 extends to the inner cavity of the circular platform 1 and is rotatably connected to the top of the push rods 9. Specifically, the center of the inner cavity of the circular platform 1 is rotatably connected to a threaded rod 10. The lifting platform 8 is threadedly connected to the surface of the threaded rod 10. The bottom of the inner cavity of the circular platform 1 is fixedly installed with a motor 11. The output shaft of the motor 11 is fixedly connected to the threaded rod 10.
[0025] Specifically, the tire expander assembly 3 includes a support plate 31 fixedly installed on the top of the movable mounting block 6. A fixed tire expander plate 32 is fixedly installed on the surface of the support plate 31. A movable tire expander plate 33 is provided on the top of the fixed tire expander plate 32. The movable tire expander plate 33 slides up and down on the surface of the support plate 31. Specifically, a sliding block 34 is fixedly connected to the surface of the movable tire expander plate 33. The sliding block 34 slides up and down in the inner cavity of the support plate 31. A threaded rod 35 is rotatably connected to the inner cavity of the support plate 31. The sliding block 34 is threadedly connected to the surface of the threaded rod 35. The top of the threaded rod 35 extends to the outside of the support plate 31 and is fixedly installed with a handwheel 36.
[0026] The universal arm 4 and the LED high-intensity light 5 are fixedly installed at the center of the top of the circular platform 1. The LED high-intensity light 5 is installed on the side of the universal arm 4 away from the circular platform 1. With the universal arm 4 and the LED high-intensity light 5, the LED high-intensity light 5 can be placed in the place that needs to be illuminated through the universal arm 4. This makes it convenient for users to observe the inside of the tire body 2, thereby finding the puncture location of the tire body 2 and improving maintenance efficiency.
[0027] Working Principle: When using this invention, the user places the tire body 2 on top of the circular platform 1, then turns on and controls the motor 11, causing the threaded rod 10 to rotate inside the circular platform 1. This causes the lifting platform 8 to slide upward inside the circular platform 1, which in turn causes the push rod 9 to rotate and push the movable mounting block 6 to slide back and forth inside the guide groove 7. Then, the fixed expanding plate 32 and the movable expanding plate 33 in the tire expanding assembly 3 are inserted into the inner cavity of the tire body 2. After that, the handwheel 36 is turned to drive the threaded rod 35 to rotate inside the support plate 31, thereby causing the movable expanding plate 33 to slide upward, expanding the inner cavity of the tire body 2. Then, the handwheel 36 is turned one by one to achieve simultaneous tire expanding of the tire body 2. This allows the user to simultaneously repair multiple parts of the tire body 2, improving repair efficiency. During tire repair, the LED high-intensity light 5 can be moved by the universal arm 4 to illuminate the inner cavity of the tire body 2, making it easier for the user to observe.
[0028] In summary, this automotive tire expansion device places the tire body 2 on top of the circular platform 1, then slides the movable mounting block 6 to drive the expansion component 3 into the inner cavity of the tire body 2. Subsequently, the expansion component 3 performs multiple simultaneous expansion operations on the circular platform 1, thereby improving the tire expansion efficiency and thus improving the maintenance efficiency.
Claims
1. A tire expander for automobile repair, characterized in that, include: A circular platform (1) and a tire body (2), wherein the tire body (2) is placed at the center of the top of the circular platform (1); The movable mounting block (6) and the tire expander assembly (3) are mounted on the top of the movable mounting block (6). The movable mounting block (6) slides on the top of the circular platform (1). There are N movable mounting blocks (6) arranged in a ring on the top of the circular platform (1). The tire body (2) is expanded by the tire expander assembly (3). The number of N is at least three. The universal arm (4) and the LED high-intensity light (5) are fixedly installed at the center of the top of the circular platform (1), and the LED high-intensity light (5) is installed on the side of the universal arm (4) away from the circular platform (1).
2. The tire expansion device for automobile repair according to claim 1, characterized in that, The number of N is 5.
3. The tire expansion device for automobile repair according to claim 1, characterized in that, The top of the circular platform (1) is provided with a guide groove (7) for the movable mounting block (6) to slide.
4. The tire expansion device for automobile repair according to claim 1, characterized in that, The inner cavity of the circular platform (1) is slidably connected to a lifting platform (8), and the top of the lifting platform (8) is rotatably connected to N push rods (9). The bottom plate of the movable mounting block (6) extends into the inner cavity of the circular platform (1) and is rotatably connected to the top of the push rods (9).
5. A tire expander for automobile repair according to claim 4, characterized in that, A threaded rod (10) is rotatably connected to the center of the inner cavity of the circular platform (1). The lifting platform (8) is threadedly connected to the surface of the threaded rod (10). A motor (11) is fixedly installed at the bottom of the inner cavity of the circular platform (1). The output shaft of the motor (11) is fixedly connected to the threaded rod (10).
6. The tire expansion device for automobile repair according to claim 1, characterized in that, The tire expander assembly (3) includes a support plate (31) fixedly installed on the top of the movable mounting block (6). A fixed tire expander plate (32) is fixedly installed on the surface of the support plate (31). A movable tire expander plate (33) is provided on the top of the fixed tire expander plate (32). The movable tire expander plate (33) slides up and down on the surface of the support plate (31).
7. A tire expansion device for automobile repair according to claim 6, characterized in that, A sliding block (34) is fixedly connected to the surface of the movable expansion plate (33). The sliding block (34) slides up and down in the inner cavity of the support plate (31). A threaded rod (35) is rotatably connected to the inner cavity of the support plate (31). The sliding block (34) is threadedly connected to the surface of the threaded rod (35). The top of the threaded rod (35) extends to the outside of the support plate (31) and is fixedly installed with a handwheel (36).