High-strength composite butyl inner tube

By introducing a steel wire layer for reinforcement and a diaphragm-compartment design into the butyl inner tube, combined with a rubber inflation pad and a plug ball structure, the problem of rapid pressure drop caused by tire blowout or puncture is solved, achieving higher stability and safety.

CN223546100UActive Publication Date: 2025-11-14NANTONG IFENG RUBBER PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422801070.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-11-14
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

When existing butyl inner tubes burst or are punctured by sharp objects, the tire pressure drops rapidly, making it difficult to control the vehicle and increasing the risk of accidents.

Method used

A high-strength composite butyl inner tube is designed, which is reinforced with a steel wire layer, and the internal diaphragm is divided into multiple chambers. It is equipped with a rubber inflation pad and a plug ball structure, and gas balance is achieved through vent holes and air holes to prevent rapid pressure drop.

Benefits of technology

When the inner tube is punctured, the air pressure is balanced through multiple chambers to prevent a rapid drop, enhance stability and safety, protect the damaged area from expanding, and improve durability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223546100U_ABST
    Figure CN223546100U_ABST
Patent Text Reader

Abstract

The utility model discloses a high-strength composite butyl inner tube, and relates to the technical field of composite butyl inner tubes. The butyl inner tube is sleeved with a steel wire layer, the steel wire layer is sleeved with a protective layer, the butyl inner tube is internally and fixedly connected with a diaphragm, the top of the diaphragm is fixedly connected with a sealing piece, the side face of the second vent hole is provided with a vent hole, and the bottom of the rubber inflatable cushion is fixedly connected with a blocking ball. The inner cavity of the butyl inner tube is divided into a plurality of chambers through the diaphragms, when a certain chamber is punctured, the air pressure in the chamber can be reduced, the extrusion effect of the rubber inflatable cushion on the blocking ball is reduced, the blocking state of the blocking ball on the vent hole formed in the side face of the second vent hole is changed, air enters the punctured chamber from the interior of the vent hole, and the air pressure in the chamber is reduced. Meanwhile, the air pressure of the cavity is reduced, air in the adjacent cavity also enters the cavity to balance the air pressure, and the situation that when the inner tube is damaged, the tire pressure is rapidly reduced, so that the direction of an automobile is difficult to control, and danger occurs is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of composite butyl inner tube technology, specifically a high-strength composite butyl inner tube. Background Technology

[0002] Butyl inner tubes are made primarily of butyl rubber and are used in the inner linings of vehicles such as automobiles, bicycles, airplanes, and engineering transport machinery that use tires as load-bearing vehicles. They are also known as butyl rubber inner tubes. Currently, automobile inner tubes generally have a single chamber. If a tire blowout occurs or a sharp object punctures the inner tube during driving, the tire pressure will drop rapidly when the inner tube is damaged. At high speeds, this can lead to difficulty in steering the vehicle, causing danger and greatly increasing the probability of accidents and traffic incidents. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-strength composite butyl inner tube, which solves the problem that if a tire blowout or a sharp object punctures the inner tube during driving, the tire pressure will drop rapidly when the inner tube is damaged, leading to difficulty in steering the vehicle at high speeds, which greatly increases the probability of dangerous situations and accidents.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-strength composite butyl inner tube. It includes a butyl inner tube, with a steel wire layer sleeved on the outside, a protective layer sleeved on the outside of the steel wire layer, a diaphragm fixedly connected inside the butyl inner tube, a first vent hole in the center of the diaphragm, a sealing element fixedly connected to the top of the diaphragm, a second vent hole in the center of the sealing element, a vent hole on the side of the second vent hole, a rubber inflation pad fixedly connected to the top of the sealing element, and a blocking ball fixedly connected to the bottom of the rubber inflation pad.

[0005] Preferably, the plugging ball is hemispherical and is engaged inside the second vent.

[0006] Preferably, the first vent and the second vent are interconnected, and the vent is connected to the interior of the first vent and the second vent.

[0007] Preferably, the rubber inflatable pad is hollow and filled with gas.

[0008] Preferably, the plugging ball plugs one end of the vent hole opened on the side of the second vent hole.

[0009] Preferably, a valve core is provided through the side of the butyl inner tube, and the valve core penetrates the interior of the steel wire layer and the protective layer.

[0010] Preferably, the diaphragm divides the inner cavity of the butyl inner tube into several chambers.

[0011] This invention provides a high-strength composite butyl inner tube. Compared with the prior art, it has the following advantages:

[0012] 1. A high-strength composite butyl inner tube, wherein the inner cavity of the butyl inner tube is divided into multiple chambers by a diaphragm. When a chamber is punctured, the air pressure inside the chamber decreases, reducing the squeezing effect of the rubber inflation pad on the suffocating ball. This changes the blocking state of the suffocating ball on the vent hole on the side of the second vent hole, allowing gas to enter the punctured chamber from inside the vent hole. At the same time, the air pressure in that chamber decreases, and gas from adjacent chambers also enters the chamber to balance the air pressure, preventing the tire pressure from dropping rapidly when the inner tube is damaged, which could lead to difficulty in steering the vehicle and cause danger.

[0013] 2. A high-strength composite butyl inner tube, wherein the steel wire layer on the surface of the butyl inner tube can reinforce the butyl inner tube, thereby increasing the stability of the butyl inner tube after inflation. When the butyl inner tube is punctured, it can protect the damaged area from expanding the puncture to the surrounding area. At the same time, the protective layer on the surface of the steel wire layer can fix the butyl inner tube and the steel wire layer inside, which can play a secondary protection role, making the butyl inner tube more durable and safer during use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the diaphragm assembly structure of this utility model.

[0017] Figure 4 This is an exploded view of the diaphragm assembly structure of this utility model.

[0018] In the diagram: 1. Butyl inner tube; 2. Steel wire layer; 3. Protective layer; 4. Rubber air cushion; 400. Blocking ball; 5. Diaphragm; 500. First vent; 6. Seal; 600. Second vent; 7. Vent hole; 8. Valve core. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a high-strength composite butyl inner tube. It includes a butyl inner tube 1, with a steel wire layer 2 sleeved on the outside. The steel wire layer 2 is interwoven with steel wires to reinforce the surface of the butyl inner tube 1. A protective layer 3 is sleeved on the outside of the steel wire layer 2 to protect the butyl inner tube 1 and the steel wire layer 2, preventing the steel wire layer 2 from accumulating or shifting on the surface of the butyl inner tube 1, which would reduce the overall flatness of the tire. A diaphragm 5 is fixedly connected inside the butyl inner tube 1, dividing the interior of the butyl inner tube 1 into multiple chambers. A first vent 500 is opened in the middle of the diaphragm 5, and the top of the diaphragm 5 is fixedly connected to... There is a sealing element 6, with a second vent 600 in the middle and a vent 7 on the side of the second vent 600. A rubber air pad 4 is fixedly connected to the top of the sealing element 6, and a blocking ball 400 is fixedly connected to the bottom of the rubber air pad 4. When the chamber is full of gas, the rubber air pad 4 will be squeezed, blocking the blocking ball 400 fixedly connected to the bottom of the rubber air pad 4 inside the second vent 600. At this time, the vent 7 on the side of the second vent 600 is not connected to the second vent 600 and the first vent 500, and no gas exchange will occur.

[0021] Please see Figure 1-4 The blocking ball 400 is hemispherical and is snapped into the interior of the second vent 600. The first vent 500 and the second vent 600 are interconnected. The vent 7 connects the interiors of the first vent 500 and the second vent 600. The interior of the rubber air pad 4 is hollow and filled with gas. Because the rubber air pad 4 is made of rubber and filled with gas, the air pressure within the chamber will continuously block the blocking ball 400 inside the second vent 600. When the air pressure within the chamber decreases, it will affect the rubber... As the pressure of the air cushion 4 decreases, the sealing performance of the plugging ball 400 inside the second vent 600 decreases, and gas from adjacent chambers will enter the chamber with lower pressure to balance the pressure of each chamber. The plugging ball 400 blocks one end of the vent 7 opened on the side of the second vent 600. A valve core 8 is provided through the side of the butyl inner tube 1, and the valve core 8 penetrates the interior of the steel wire layer 2 and the protective layer 3. The diaphragm 5 divides the inner cavity of the butyl inner tube 1 into several chambers, which are not connected under normal air pressure conditions.

[0022] When the butyl inner tube 1 is punctured by a sharp object such as a nail, the diaphragm 5 divides the inner cavity of the butyl inner tube 1 into multiple chambers. The air pressure in one of these chambers will decrease, reducing the pressure of the gas in the chamber on the rubber inflation pad 4. This changes the blocking state of the vent 7 on the side of the second vent 600 by the blocking ball 400. Gas enters the punctured chamber from the inside of the vent 7. At the same time, the air pressure in that chamber decreases, and gas from adjacent chambers also enters to balance the air pressure. The steel wire layer 2 on the surface of the butyl inner tube 1 can reinforce the butyl inner tube 1, increasing its stability after inflation. When the butyl inner tube 1 is punctured, it can protect the damaged area from expanding the hole to the surrounding area. At the same time, the protective layer 3 on the surface of the steel wire layer 2 can fix the butyl inner tube 1 and the steel wire layer 2 inside, providing secondary protection.

[0023] In this embodiment, a high-strength composite butyl inner tube is described. The structural features and working principle of the above-mentioned components are based on existing technologies and will not be detailed here.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] 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 high-strength composite butyl inner tube, comprising a butyl inner tube (1), characterized in that: The butyl inner tube (1) is covered with a steel wire layer (2), and a protective layer (3) is covered with the steel wire layer (2). A diaphragm (5) is fixedly connected inside the butyl inner tube (1). A first vent hole (500) is opened in the middle of the diaphragm (5). A sealing element (6) is fixedly connected to the top of the diaphragm (5). A second vent hole (600) is opened in the middle of the sealing element (6). A vent hole (7) is opened on the side of the second vent hole (600). A rubber air pad (4) is fixedly connected to the top of the sealing element (6). A blocking ball (400) is fixedly connected to the bottom of the rubber air pad (4).

2. The high-strength composite butyl inner tube according to claim 1, characterized in that: The blocking ball (400) is hemispherical and is engaged inside the second vent (600).

3. The high-strength composite butyl inner tube according to claim 1, characterized in that: The first vent (500) and the second vent (600) are interconnected, and the vent (7) connects the interior of the first vent (500) and the second vent (600).

4. The high-strength composite butyl inner tube according to claim 1, characterized in that: The rubber inflatable pad (4) is hollow inside and filled with gas.

5. A high-strength composite butyl inner tube according to claim 2, characterized in that: The blocking ball (400) blocks one end of the vent (7) opened on the side of the second vent (600).

6. The high-strength composite butyl inner tube according to claim 1, characterized in that: A valve core (8) is provided through the side of the butyl inner tube (1), and the valve core (8) penetrates the interior of the steel wire layer (2) and the protective layer (3).

7. A high-strength composite butyl inner tube according to claim 1, characterized in that: The diaphragm (5) divides the inner cavity of the butyl inner tube (1) into several chambers.