Butyl inner tube with high wear resistance
By incorporating a wear-resistant mechanism on the outer side of the butyl inner tube, including a combination of anti-slip sleeves and sealing layers, the problem of air leakage due to friction damage to the inner tube is solved. This achieves high wear resistance and emergency sealing effect, ensuring that the vehicle can safely travel to the repair location.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG IFENG RUBBER PROD CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
Existing butyl inner tubes cannot effectively prevent air leakage when they are damaged by friction after prolonged use, which prevents vehicles from being driven to a repair shop in an emergency.
The inner tube is equipped with a wear-resistant mechanism on the outside, including an anti-slip sleeve, a sealing layer, a Kevlar fiber layer, a nylon cord layer, an anti-slip layer, and a wear-resistant coating. The combination of these layers enhances the wear resistance and sealing performance of the inner tube. The anti-slip sleeve can be moved to cover the leak and the sealing layer fits the leak after inflation, slowing down the gas leakage.
It extends the emergency use time of the inner tube, preventing the vehicle from being unable to reach a repair shop due to air leakage, and enhances the wear resistance and sealing effect of the inner tube.
Smart Images

Figure CN224276732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of butyl inner tube technology, specifically a butyl inner tube with high wear resistance. Background Technology
[0002] Butyl inner tubes are inner tubes made of butyl rubber, mainly used as auxiliary air-bearing containers inside the tire cavities of automobiles, motorcycles, bicycles, and rickshaws. Due to their excellent performance, butyl inner tubes can provide better shock absorption and protection, and extend the service life of the tires.
[0003] According to the utility model patent application CN218702539U, a leak-proof butyl rubber inner tube is disclosed, including an inner tube body, an inflation tube that is connected through the inner wall of the inner tube body, an inflation tube, a sealing cover that is threadedly connected to the upper end of the inflation tube through a threaded connecting ring, an air-blocking pad that is provided at the inner end of the inflation tube, and a leak-proof component that works in conjunction with the air-blocking pad that is provided inside the inflation tube.
[0004] While this device uses an air-sealing pad inside the inflation tube and a leak-proof component that works in conjunction with the air-sealing pad inside the inflation tube, the air-sealing pad quickly contacts the bottom of the inflation tube after inflation due to the pressure of the gas inside the inner tube and the rebound force of the spring, thus quickly sealing the inflation tube and effectively preventing the inner tube from leaking. However, this device only prevents the inner tube from leaking during inflation. When the inner tube ruptures due to friction after prolonged use and leaks, it cannot provide emergency repairs, thus not extending emergency use time and preventing the vehicle from reaching a repair shop. Therefore, we provide a high-wear-resistant butyl inner tube to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a butyl inner tube with high wear resistance.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a butyl inner tube with high wear resistance, comprising an inner tube body, an wear-resistant mechanism provided on the outer side of the inner tube body, the wear-resistant mechanism comprising a plurality of identical anti-slip sleeves, a first buffer layer and a second buffer layer respectively provided on the outer side of the inner tube body, a sealing layer fixedly connected to one side of each anti-slip sleeve near the inner tube body, a Kevlar fiber layer fixedly connected to the outer surface of each sealing layer, a nylon cord layer fixedly connected to the outer surface of each Kevlar fiber layer, an anti-slip layer fixedly connected to the outer surface of each nylon cord layer, an anti-slip pattern provided on the outer side of each anti-slip layer, and a plurality of identical filling grooves opened on the outer surface of the inner tube body, with a wear-resistant strip fixedly connected to the inner wall of each filling groove.
[0007] Furthermore, the sides of the first and second buffer layers that are close to each other are fixedly connected to the outer surface of the inner tube body, and the materials of the first and second buffer layers are both microporous foamed rubber.
[0008] Furthermore, a first polyester fiber layer and a second polyester fiber layer are fixedly connected to the opposite sides of the first and second buffer layers, respectively, and both the first and second polyester fiber layers are made of polyethylene terephthalate.
[0009] Furthermore, a first fiber reinforcement layer and a second fiber reinforcement layer are fixedly connected to the opposite sides of the first polyester fiber layer and the second polyester fiber layer, respectively, and the first fiber reinforcement layer and the second fiber reinforcement layer are both made of aramid fiber.
[0010] Furthermore, a first wear-resistant coating and a second wear-resistant coating are fixedly connected to the opposite sides of the first fiber reinforcement layer and the second fiber reinforcement layer, respectively, and the first wear-resistant coating and the second wear-resistant coating are both made of epoxy resin.
[0011] Furthermore, the inner wall of the inner tube body has two protective grooves, and a support strip is fixedly connected to the inner wall of each protective groove.
[0012] Furthermore, an air valve is fixedly connected to the outer surface of the inner tube body, and the air valve is made of copper.
[0013] Furthermore, a sealing sheet is fixedly connected to the outer surface of the valve, and the outer surface of the sealing sheet is fixedly connected to the outer surface of the inner tube body.
[0014] Compared with existing technologies, this high-wear-resistant butyl inner tube has the following beneficial effects:
[0015] This invention utilizes the interplay of an anti-slip sleeve, an anti-slip layer, and anti-slip patterns. When the inner tube is inflated, the sealing layer adheres tightly to the outer wall of the tire, fixing the sleeve's position and preventing relative movement between the inner and outer tires due to rolling. This reduces friction and wear. The anti-slip layer has anti-slip stripes on its outer side, further enhancing friction. When the inner tube leaks air, the anti-slip sleeve can move to the leak location to cover the puncture. After inflation, the sealing layer adheres to the leak point, slowing the gas leakage rate and extending emergency use time. This effectively avoids the problem of being unable to handle the inner tube in an emergency, preventing the vehicle from reaching a repair shop.
[0016] This invention, through the interaction between the wear-resistant strip and the filling groove, directly enhances the wear resistance of the outer surface by setting the filling groove and embedding the wear-resistant strip on the outer wall of the inner tube. Attached Figure Description
[0017] Figure 1This is a three-dimensional structural diagram of the butyl inner tube with high wear resistance according to this utility model.
[0018] Figure 2 This is a three-dimensional structural diagram of the anti-slip sleeve of this utility model.
[0019] Figure 3 This is a three-dimensional structural diagram of the sealing layer of this utility model.
[0020] Figure 4 This is a three-dimensional structural diagram of the wear-resistant strip of this utility model.
[0021] Figure 5 This is a three-dimensional structural diagram of the inner tube body of this utility model.
[0022] In the diagram: 1. Inner tube body; 2. Wear-resistant mechanism; 201. Anti-slip sleeve; 202. Anti-slip pattern; 203. Sealing layer; 204. Anti-slip layer; 205. Nylon cord layer; 206. Kevlar fiber layer; 207. Wear-resistant strip; 208. Filling groove; 209. First buffer layer; 210. Second buffer layer; 211. First polyester fiber layer; 212. Second polyester fiber layer; 213. First fiber reinforcement layer; 214. Second fiber reinforcement layer; 215. First wear-resistant coating; 216. Second wear-resistant coating; 3. Support strip; 4. Protective groove; 5. Air valve; 6. Sealing plate. Detailed Implementation
[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0024] This embodiment provides a butyl inner tube with high wear resistance. When the inner tube leaks air, the anti-slip sleeve can be moved to the leak location to cover the damaged area. After inflation, the sealing layer adheres to the leak point, slowing down the gas leakage rate and extending the emergency use time.
[0025] See Figure 1 and Figure 4 A high wear-resistant butyl inner tube includes an inner tube body 1. A wear-resistant mechanism 2 is provided on the outer side of the inner tube body 1. The wear-resistant mechanism 2 includes several identical anti-slip sleeves 201. Two protective grooves 4 are opened on the inner wall of the inner tube body 1. A support strip 3 is fixedly connected to the inner wall of each protective groove 4. Through the protective grooves 4 and the support strips 3, the deformation range can be limited, the inflation groove can be prevented from being deformed by pressure, and the air tightness can be maintained stably.
[0026] See Figure 1 , Figure 3 and Figure 5The outer side of the inner tube body 1 is provided with a first buffer layer 209 and a second buffer layer 210 respectively. Each anti-skid sleeve 201 is fixedly connected to a sealing layer 203 on the side closest to the inner tube body 1. The sides of the first buffer layer 209 and the second buffer layer 210 that are close to each other are fixedly connected to the outer surface of the inner tube body 1. The first buffer layer 209 and the second buffer layer 210 are both made of microporous foamed rubber. Through the first buffer layer 209 and the second buffer layer 210, the assembly accuracy and impact resistance can be improved, and the wear caused by vibration or uneven road surface can be further reduced.
[0027] See Figure 3 and Figure 5 Each sealing layer 203 has a Kevlar fiber layer 206 fixedly connected to its outer surface. The first buffer layer 209 and the second buffer layer 210 have a first polyester fiber layer 211 and a second polyester fiber layer 212 fixedly connected to their respective sides away from each other. The first polyester fiber layer 211 and the second polyester fiber layer 212 are both made of polyethylene terephthalate. The first polyester fiber layer 211 and the second polyester fiber layer 212 can improve tear resistance and overall structural strength, and prevent the surface wear layer from cracking due to deformation.
[0028] See Figure 3 and Figure 5 Each Kevlar fiber layer 206 has a nylon fabric layer 205 fixedly connected to its outer surface, and each nylon fabric layer 205 has an anti-slip layer 204 fixedly connected to its outer surface. The first polyester fiber layer 211 and the second polyester fiber layer 212 are respectively fixedly connected to their opposite sides with a first fiber reinforcement layer 213 and a second fiber reinforcement layer 214. The first fiber reinforcement layer 213 and the second fiber reinforcement layer 214 are both made of aramid fiber. Through the first fiber reinforcement layer 213 and the second fiber reinforcement layer 214, pressure can be distributed and excessive local wear can be prevented.
[0029] See Figure 3 and Figure 5 Each anti-slip layer 204 has an anti-slip pattern 202 on its outer side. The first fiber reinforcement layer 213 and the second fiber reinforcement layer 214 are respectively fixedly connected to the opposite sides of each other. The first wear-resistant coating 215 and the second wear-resistant coating 216 are both made of epoxy resin. The friction coefficient between the inner tube and the outer tube is reduced by the first wear-resistant coating 215 and the second wear-resistant coating 216, thus reducing wear.
[0030] See Figure 4The outer surface of the inner tube body 1 has several identical filling grooves 208. The outer surface of the inner tube body 1 is fixedly connected to an air valve 5. The air valve 5 is made of copper. By using a copper air valve 5, it can have both corrosion resistance and structural strength, and the sealing performance is better when combined with the butyl rubber tire body.
[0031] See Figure 4 Each filling groove 208 has a wear-resistant strip 207 fixedly connected to its inner wall, and a sealing sheet 6 is fixedly connected to the outer surface of the valve 5. The outer surface of the sealing sheet 6 is fixedly connected to the outer surface of the inner tube body 1. Through the sealing sheet 6, the air tightness of the connection between the valve 5 and the tire body can be improved, and the risk of air leakage caused by the loosening of the valve 5 can be reduced.
[0032] Working principle: In use, multiple identical anti-slip sleeves 201 are evenly distributed on the outside of the inner tube body 1. Each anti-slip sleeve 201 includes an anti-slip layer 204 and a sealing layer 203. When the inner tube body 1 is inflated, the sealing layer 203 fits tightly against the outer wall of the inner tube body 1, thereby fixing the position of the anti-slip sleeve 201 and playing a fixing and limiting role. This prevents relative movement between the inner tube and the outer tire due to rolling, thereby reducing friction and wear. Furthermore, the outer side of the anti-slip layer 204 is provided with anti-slip patterns 202, which can further enhance friction.
[0033] When the inner tube body 1 leaks air, the anti-skid sleeve 201 is moved to the leak location on the surface of the inner tube body 1 to cover the damaged area. Then, the inner tube body 1 is inflated through the air nozzle 5, so that the sealing layer 203 of the anti-skid sleeve 201 fits the leak point, thereby slowing down the gas leakage rate, extending the emergency use time, and enhancing the effectiveness of the device. This can effectively prevent the problem of the vehicle being unable to reach the repair location due to the inability to handle the inner tube in an emergency.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A butyl inner tube with high wear resistance, comprising an inner tube body (1), characterized in that: The outer side of the inner tube body (1) is provided with a wear-resistant mechanism (2), which includes several identical anti-slip sleeves (201). The outer side of the inner tube body (1) is provided with a first buffer layer (209) and a second buffer layer (210). Each anti-slip sleeve (201) is fixedly connected to a sealing layer (203) on the side closest to the inner tube body (1). Each sealing layer (203) is fixedly connected to a Kevlar fiber layer (206) on its outer surface. Each Kevlar fiber layer (206) is fixedly connected to a nylon cord layer (205) on its outer surface. Each nylon cord layer (205) is fixedly connected to an anti-slip layer (204) on its outer surface. Each anti-slip layer (204) is provided with an anti-slip pattern (202) on its outer side. The outer surface of the inner tube body (1) is provided with several identical filling grooves (208). Each filling groove (208) is fixedly connected to a wear-resistant strip (207) on its inner wall.
2. The butyl inner tube with high wear resistance according to claim 1, characterized in that: The first buffer layer (209) and the second buffer layer (210) are fixedly connected to the outer surface of the inner tube body (1) on their respective sides. The first buffer layer (209) and the second buffer layer (210) are both made of microporous foamed rubber.
3. The butyl inner tube with high wear resistance according to claim 2, characterized in that: The first buffer layer (209) and the second buffer layer (210) are respectively fixedly connected to the side away from each other by the first polyester fiber layer (211) and the second polyester fiber layer (212), and the first polyester fiber layer (211) and the second polyester fiber layer (212) are both made of polyethylene terephthalate.
4. The butyl inner tube with high wear resistance according to claim 3, characterized in that: The first polyester fiber layer (211) and the second polyester fiber layer (212) are respectively fixedly connected to the side away from each other by the first fiber reinforcement layer (213) and the second fiber reinforcement layer (214). The first fiber reinforcement layer (213) and the second fiber reinforcement layer (214) are both made of aramid fiber.
5. A butyl inner tube with high wear resistance according to claim 4, characterized in that: The first fiber reinforcement layer (213) and the second fiber reinforcement layer (214) are respectively fixedly connected to the side away from each other by a first wear-resistant coating (215) and a second wear-resistant coating (216). The first wear-resistant coating (215) and the second wear-resistant coating (216) are both made of epoxy resin.
6. The butyl inner tube with high wear resistance according to claim 1, characterized in that: The inner wall of the inner tube body (1) has two protective grooves (4), and a support strip (3) is fixedly connected to the inner wall of each protective groove (4).
7. The butyl inner tube with high wear resistance according to claim 1, characterized in that: The outer surface of the inner tube body (1) is fixedly connected to an air nozzle (5), which is made of copper.
8. A butyl inner tube with high wear resistance according to claim 7, characterized in that: A sealing sheet (6) is fixedly connected to the outer surface of the valve (5), and the outer surface of the sealing sheet (6) is fixedly connected to the outer surface of the inner tube body (1).