A tire repair device for a vacuum tire
By designing a tire repair device that combines a cylindrical gun body and a stud, the problem of secondary damage to tires caused by existing vacuum tire repair methods has been solved, achieving a fast and safe tire repair effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN XINFENGTAI AUTO TOOLS CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-29
AI Technical Summary
Existing tubeless tire repair methods, such as external patching and hot patching, can cause secondary damage to the tire or are time-consuming to repair.
A tire repair device comprising a cylindrical gun body, a gun head, a barrel, a stud, and a spring was designed. Through the cooperation of the stud and the spring, tire repair can be performed quickly without removing the tire. The gun head and the tire repair mushroom body are used to apply sealant.
It enables a safe, fast, and simple tire repair process, avoids secondary damage to the tire, and improves operational efficiency.
Smart Images

Figure CN224296652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tire repair device for vacuum tires. Background Technology
[0002] Tubeless tires are widely used in automobiles, motorcycles, and electric vehicles. The most common repair methods for tubeless tires are external patching and hot patching. External patching involves forcibly inserting a rubber strip into the tire bead that needs repair, which can cause secondary damage to the tire. Hot patching requires removing the tire for repair, which is time-consuming and not quick or convenient. Utility Model Content
[0003] In view of the shortcomings of the existing technology, this utility model provides a tire repair device for vacuum tires.
[0004] This utility model provides the following technical solution: a tire repair device for vacuum tires, comprising a cylindrical gun body, a gun head, a bore, a stud, and a spring. The cylindrical gun body has a through-cavity, and the front end of the bore has a channel smaller than the bore. The front end of the channel has a tire repair mushroom-shaped mounting cavity. The outer wall of the tire repair mushroom-shaped mounting cavity and the outer wall of the bore form a stepped surface. The outer side of the outer wall of the tire repair mushroom-shaped mounting cavity is threaded. The outer wall of the tire repair mushroom-shaped mounting cavity is threaded to the inner wall of the rear end of the gun head. The gun head has a flared cavity with a smaller front end and a larger rear end. The front end of the bore passes through the channel, and the rear end of the bore is located in the bore. The rear end of the bore has a limiting protrusion. The spring is sleeved on the outer side of the rear end of the bore. One end of the spring abuts against the limiting protrusion, and the other end abuts against the transition surface between the channel and the bore on the limiting protrusion. The inner wall of the bore has a second thread. The stud is installed at the end of the bore and connected to the bore through the second thread. The bore is driven forward by turning the stud.
[0005] Furthermore, a knob tool insertion port is provided on the end face of the stud.
[0006] Furthermore, the gun head is decorated with patterns.
[0007] Furthermore, the barrel-shaped gun body is decorated with patterns.
[0008] Furthermore, the pattern is a twill pattern.
[0009] Furthermore, the pattern is a straight line pattern.
[0010] Furthermore, the front end of the bore is frustum-shaped.
[0011] Compared with the existing technology, the present invention has the following advantages: it is safe, has a simple structure, is highly efficient, easy to operate, and is small in size and easy to store and carry. Attached Figure Description
[0012] Figure 1 This is an exploded view of the entire structure.
[0013] Figure 2 This is a schematic diagram of a cylindrical gun body structure.
[0014] Figure 3 This is a schematic diagram of another type of cylindrical gun body structure. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0017] Please refer to Example 1 Figure 1-3 A tire repair device for vacuum tires includes a cylindrical gun body 1, a gun head 2, a bore 3, a stud 4, and a spring 5. The cylindrical gun body has a through-hole 6, with a channel 7 smaller than the bore 7 at the front end. A mushroom-shaped mounting cavity 8 is located at the front end of the channel. The outer wall 9 of the mushroom-shaped mounting cavity forms a stepped surface with the outer wall of the inner cavity. The outer side of the outer wall of the mushroom-shaped mounting cavity is threaded, and the outer wall of the mushroom-shaped mounting cavity is threaded to the inner wall of the rear end of the gun head. The gun head has a trumpet-shaped cavity with a smaller front end and a larger rear end. The front end of the bore passes through the channel, and the rear end of the bore is located within the inner cavity. A limiting protrusion is located at the rear end of the bore. The spring is sleeved on the outer side of the rear end of the bore, with one end abutting against the limiting protrusion 10 and the other end abutting against the transition surface between the channel and the inner cavity on the limiting protrusion. A second thread is provided on the inner wall of the inner cavity. The stud is installed at the end of the inner cavity and connected to the inner cavity via the second thread. The bore is driven forward by rotating the stud. The tire does not need to be removed during use.
[0018] A tire repair device for vacuum tires, wherein a knob tool insertion port 11 is provided on the end face of the stud.
[0019] A tire repair device for vacuum tires, with a tread pattern on the nozzle.
[0020] A tire repair device for vacuum tires, with a tread pattern on the outside of a cylindrical gun.
[0021] A tire repair device for vacuum tires, with a twill pattern 14.
[0022] A tire repair device for vacuum tires, with a straight tread pattern 13.
[0023] A tire repair device for vacuum tires, wherein the front end of the chamber is frustum-shaped.
[0024] A tire repair device for vacuum tires includes a cylindrical gun body. The front end of the barrel is retracted into position by a stud and spring action. The rear end of the tire repair mushroom body is inserted into the channel, and the front end is inserted into the tire repair mushroom body mounting cavity. The gun head knob is at the front end of the cylindrical gun body. Then, the front end 12 of the gun head is inserted into the tire repair hole. The knob stud moves forward, and the front end of the tire repair mushroom body is driven into the tire through the barrel. Then, the front end of the gun head is pulled out, leaving the rear end of the tire repair mushroom body in the tire repair hole. Applying sealant completes the tire repair.
[0025] The tip of the gun can further help insert the tire repair mushroom body into the tire repair mushroom body installation cavity.
[0026] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tire repair device for vacuum tires, comprising a cylindrical gun body, a gun head, a bore, a stud, and a spring, characterized in that: The cylindrical gun body has a through-hole, with a channel at the front end of the inner cavity that is smaller than the inner cavity itself. A tire repair mushroom-shaped mounting cavity is located at the front end of the channel. The outer wall of the tire repair mushroom-shaped mounting cavity forms a stepped surface with the outer wall of the inner cavity. The outer side of the outer wall of the tire repair mushroom-shaped mounting cavity is threaded, and the outer wall of the tire repair mushroom-shaped mounting cavity is threaded to the inner wall of the rear end of the gun head. The gun head has a trumpet-shaped cavity with a smaller front end and a larger rear end. The front end of the bore passes through the channel, and the rear end of the bore is located within the inner cavity. A limiting protrusion is located at the rear end of the bore. A spring is sleeved on the outer side of the rear end of the bore, with one end of the spring abutting against the limiting protrusion and the other end abutting against the transition surface between the channel and the inner cavity on the limiting protrusion. A second thread is located on the inner wall of the inner cavity, and a stud is installed at the end of the inner cavity and connected to the inner cavity via the second thread. The bore is driven forward by rotating the stud.
2. A tire repair device for a vacuum tire according to claim 1, characterized in that: The end face of the stud has a knob tool insertion port.
3. A tire repair device for vacuum tires according to claim 1, characterized in that: The spearhead is decorated with patterns.
4. A tire repair device for a vacuum tire according to claim 3, characterized in that: The barrel-shaped gun body is decorated with patterns.
5. A tire repair device for a vacuum tire according to claim 4, characterized in that: The pattern is a diagonal stripe.
6. A tire repair device for a vacuum tire according to claim 4, characterized in that: The pattern is a straight line pattern.
7. A tire repair device for a vacuum tire according to claim 4, characterized in that: The front end of the bore is truncated cone-shaped.