Anti-aging tire tube

Abstract

The utility model discloses an anti-aging tire tube, which relates to the technical field of tires and comprises a tire tube body and an inflation tube mounted on the inner side of the tire tube body. The corrosion-resistant layer is arranged on the outer wall of the inner tube body; the functional layer is arranged on the outer wall of the corrosion-resistant layer; the protective layer is arranged outside the functional layer and is used for friction protection of the outer part of the inner tube body close to the outer tube side; and the second high-temperature-resistant layer is coated on the inner cavity of the inner tube body. Through the arrangement mode that the corrosion-resistant layer, the functional layer, the protective layer and the second high-temperature-resistant layer are matched, the inner tube body has heat insulation, high-temperature resistance and corrosion resistance and has the damping function, the abrasion resistance of the side, close to an outer tire of the tire, of the inner tube body is higher, and the service life of the inner tube body is prolonged. And the inner tube body is adsorbed in the inner cavity of the outer tube through extrusion of the adsorption grooves, so that the phenomenon of abrasion caused by extrusion between the inner tube and the outer tube is avoided, and the service life of the inner tube is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, in particular to an anti-aging tire inner tube. Background Art

[0002] A tire inner tube, commonly known as a tire inner tube, is a donut-shaped elastic tube with a tire valve that maintains internal tire pressure. It serves as an air container for inflation and vibration reduction, serving as an auxiliary pressure-bearing container within the tire cavity of trucks, motorcycles, bicycles, and rickshaws. It should exhibit excellent airtightness, heat resistance, elasticity, aging resistance, and minimal permanent deformation. Existing tire inner tubes are typically made of butyl rubber.

[0003] However, the inner tube of a butyl rubber tire will also age during use due to prolonged use, and the inner tube is located in the inner cavity of the tire outer tube. Since the outer tube and the inner tube are not integrally formed, the position of the inner tube in the inner cavity of the outer tube is achieved entirely by the rubber friction between the inner tube and the outer tube. However, during the use of the tire, the outer tube and the inner tube are constantly squeezed, and friction damage is likely to occur between the inner wall of the outer tube and the inner tube wall, causing the inner tube wall to continuously wear and become thinner, and the anti-aging coating on the inner tube wall is easily worn away, affecting the service life of the inner tube. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-aging tire inner tube to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an anti-aging tire inner tube, comprising:

[0006] Inner tube body;

[0007] An inflation tube, the inflation tube being installed on the inner side of the inner tube body;

[0008] Also includes:

[0009] A corrosion-resistant layer, the corrosion-resistant layer being provided on the outer wall of the inner tube body;

[0010] A functional layer, the functional layer being disposed on the outer wall of the corrosion-resistant layer;

[0011] A protective layer is provided on the outside of the functional layer and is used for friction protection of the outer side of the inner tube body close to the outer tube side;

[0012] The second high temperature resistant layer is coated on the inner cavity of the inner tube body.

[0013] Preferably, the functional layer comprises:

[0014] a first high temperature resistant layer, the first high temperature resistant layer being fixed to the outer wall of the corrosion resistant layer;

[0015] a heat-insulating silica gel layer, the heat-insulating silica gel layer being fixed to the outer wall of the first high-temperature resistant layer;

[0016] A shock-absorbing layer, the shock-absorbing layer being arranged on the outer wall of the heat-insulating silica gel layer;

[0017] The reinforcement layer is fixed to the outer wall of the shock-absorbing layer.

[0018] Preferably, the opposite sides of the shock-absorbing layer and the heat-insulating silicone layer are irregular in structure, and the opposite sides of the shock-absorbing layer and the heat-insulating silicone layer are clamped and fixed.

[0019] Preferably, the corrosion-resistant layer is fixed to the outer wall of the inner tube body, and the protective layer is arranged on the outer wall of the reinforcement layer.

[0020] Preferably, the protective layer comprises:

[0021] a wear-resistant layer fixed to the outer wall of the reinforcement layer;

[0022] The adsorption groove is obliquely arranged on the outer wall of the wear-resistant layer.

[0023] Preferably, the adsorption groove is opened on the outer wall of the wear-resistant layer, and the side of the wear-resistant layer is a chamfered structure.

[0024] The technical effects and advantages of this utility model are:

[0025] The utility model adopts a configuration mode in which a corrosion-resistant layer, a functional layer, a protective layer and a second high-temperature resistant layer are matched with each other, and utilizes the second high-temperature resistant layer to make the inner cavity of the inner tube body resistant to high temperatures, and is used to prevent the phenomenon of high-temperature aging and tire burst caused by the gas in the inner cavity of the inner tube body in high temperature weather. The configuration of the functional layer and the corrosion-resistant layer makes the inner tube body heat-insulating, high-temperature resistant and corrosion-resistant, and also makes the tire have a shock-absorbing function for the inner tube body when in use. The configuration of the protective layer makes the side of the inner tube body close to the tire outer tube have higher wear resistance, and the inner tube body is adsorbed in the inner cavity of the outer tube through the adsorption groove under extrusion, thereby avoiding the phenomenon of wear between the inner tube and the outer tube due to extrusion, improving the protection of the outer wall of the inner tube body, and extending the service life of the inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 This is a schematic side sectional view of the inner tube body of the present invention.

[0028] Figure 3 For this utility model Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0029] In the figure: 1. Inner tube body; 2. Inflation tube; 3. Corrosion-resistant layer; 4. Functional layer; 41. First high-temperature resistant layer; 42. Heat-insulating silicone layer; 43. Shock-absorbing layer; 44. Reinforcement layer; 5. Protective layer; 51. Wear-resistant layer; 52. Adsorption tank; 6. Second high-temperature resistant layer. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The utility model provides Figure 1-3 An anti-aging tire inner tube is shown, comprising:

[0032] The inner tube body 1 and the inflation tube 2 are installed on the inner side of the inner tube body 1. The inner tube body 1 is made of butyl rubber. The butyl rubber inner tube colloid has good self-closing performance and high air tightness. The inner cavity of the inner tube body 1 can be inflated through the inflation tube 2.

[0033] It also includes: a corrosion-resistant layer 3, a functional layer 4, a protective layer 5 and a second high-temperature resistant layer 6. The corrosion-resistant layer 3 is arranged on the outer wall of the inner tube body 1, the functional layer 4 is arranged on the outer wall of the corrosion-resistant layer 3, and the protective layer 5 is arranged on the outside of the functional layer 4. The protective layer 5 is used for friction protection on the outside of the inner tube body 1 near the outer side of the outer tire. The second high-temperature resistant layer 6 is coated on the inner cavity of the inner tube body 1, and the corrosion-resistant layer 3 is fixed on the outer wall of the inner tube body 1. The corrosion-resistant layer 3 is a coating painted with epoxy resin paint, which can provide corrosion-resistant protection for the outer wall of the inner tube body 1. The second high-temperature resistant layer 6 is a thin layer structure sprayed with high-temperature resistant paint, so that it does not affect the normal inflation of the inner tube body 1. At the same time, in high temperature weather, it reduces the aging and tire blowout of the inner cavity of the inner tube body 1 caused by high-temperature air compression, thereby improving the practicality and stability of the inner tube body 1.

[0034] Specifically, the functional layer 4 includes: a first high temperature resistant layer 41, a heat insulating silicone layer 42, a shock absorbing layer 43 and a reinforcement layer 44. The first high temperature resistant layer 41 is fixed to the outer wall of the corrosion resistant layer 3. The first high temperature resistant layer 41 is composed of hydrogenated nitrile rubber. The first high temperature resistant layer 41 composed of hydrogenated nitrile rubber has good oil resistance. Due to its highly saturated structure, it has good heat resistance, excellent chemical corrosion resistance, excellent ozone resistance, and high compression permanent deformation resistance. The first high temperature resistant layer 41 is on the outside of the corrosion resistant layer 3, so that The inner tube has the characteristics of high strength, high tearing performance, and excellent wear resistance, thereby improving the protective performance of the inner tube body 1. The heat-insulating silicone layer 42 is fixed to the outer wall of the first high-temperature resistant layer 41. The heat-insulating silicone layer 42 is composed of silicone. The heat-insulating silicone has the characteristics of high and low temperature resistance and heat insulation, which facilitates the isolation of heat absorbed and transferred by the outer tire and the ground, reduces the transfer of heat to the inner cavity of the inner tube body 1, and provides high-temperature protection for the first high-temperature resistant layer 41. Therefore, the first high-temperature resistant layer 41, the corrosion-resistant layer 3 and the inner tube body 1 can all be protected, thereby improving the practicality of the tire inner tube.

[0035] Among them, the shock-absorbing layer 43 is arranged on the outer wall of the heat-insulating silicone layer 42, and the reinforcement layer 44 is fixed to the outer wall of the shock-absorbing layer 43. The opposite side of the shock-absorbing layer 43 and the heat-insulating silicone layer 42 is an irregular structure, and the opposite side of the shock-absorbing layer 43 and the heat-insulating silicone layer 42 are clamped and fixed. The shock-absorbing layer 43 is composed of a high-elastic EPDM layer. EPDM has rich ductility and good heat resistance. EPDM has excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, electrical properties, oil filling and fluidity at room temperature. The shock-absorbing layer 43 composed of EPDM can be used for a long time at 120°C. Through the high elasticity of EPDM, the shock-absorbing layer 43 can protect the outside of the inner tube body 1, reduce the impact of the tire on the inner tube body 1 when it is impacted, and improve the high stability of the tire during use. The reinforcement layer 44 is composed of EPDM, which is ethylene, propylene and non-conjugated The terpolymer of dienes has a special structure. During the copolymer reaction, only one double bond with high activity participates in the reaction, and the remaining double bond with less activity remains on the copolymer molecular chain as an unsaturated point for use in sulfur vulcanization. Only one of the two bonds can copolymerize. The unsaturated double bond mainly serves as a cross-linking point, and the other unsaturated double bond will not become a polymer main chain, but will only become a side chain; the main polymer chain of EPDM is completely saturated. This feature makes EPDM resistant to heat, light, oxygen, and especially ozone; EPDM is essentially non-polar, resistant to polar solutions and chemicals, has low water absorption, and has good insulating properties, so that the reinforcement layer 44 composed of EPDM rubber has low density and high filling, aging resistance, corrosion resistance, water vapor resistance, and superheated water resistance, which is convenient for cooperating with the shock-absorbing layer 43 to provide secondary protection to the outer wall of the inner tube body 1.

[0036] More specifically, the protective layer 5 is arranged on the outer wall of the reinforcement layer 44. The protective layer 5 includes: a wear-resistant layer 51 and an adsorption groove 52. The wear-resistant layer 51 is fixed to the outer wall of the reinforcement layer 44. The wear-resistant layer 51 is made of styrene butadiene rubber. Styrene butadiene rubber has good wear resistance and aging resistance. It can provide wear-resistant protection for the part of the outer wall of the inner tube body 1 that is attached to the inner side of the outer tube. The side of the wear-resistant layer 51 is chamfered, so that the wear-resistant layer 51 is slowly bonded to the reinforcement layer 44, thereby improving the wear resistance of the inner tube body 1. The firmness of the position of the wear-resistant layer 51 reduces the protrusion of the wear-resistant layer 51. The adsorption groove 52 is obliquely arranged on the outer wall of the wear-resistant layer 51. The adsorption groove 52 is opened on the outer wall of the wear-resistant layer 51. The opening of the adsorption groove 52 allows the adsorption groove 52 on the outer wall of the wear-resistant layer 51 to be in a negative pressure adsorption state and adsorbed on the inner wall of the outer tire when the outer tire is squeezed against the inner tube body 1, thereby avoiding the phenomenon of wear between the inner tube and the outer tire due to squeezing, improving the protection of the outer wall of the inner tube body 1, and improving the service life of the tire inner tube.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-aging tire inner tube, comprising: Inner tube body (1); An inflation tube (2), the inflation tube (2) being installed on the inner side of the inner tube body (1); It is characterized by further comprising: A corrosion-resistant layer (3), wherein the corrosion-resistant layer (3) is provided on the outer wall of the inner tube body (1); A functional layer (4), the functional layer (4) being arranged on the outer wall of the corrosion-resistant layer (3); A protective layer (5), the protective layer (5) being arranged outside the functional layer (4), and the protective layer (5) being used for friction protection of the outer portion of the inner tube body (1) close to the outer tire side; A second high-temperature resistant layer (6), wherein the second high-temperature resistant layer (6) is coated on the inner cavity of the inner tube body (1).

2. The anti-aging tire inner tube according to claim 1, characterized in that: The functional layer (4) comprises: a first high-temperature resistant layer (41), wherein the first high-temperature resistant layer (41) is fixed to the outer wall of the corrosion-resistant layer (3); a heat-insulating silica gel layer (42), wherein the heat-insulating silica gel layer (42) is fixed to the outer wall of the first high-temperature resistant layer (41); a shock-absorbing layer (43), the shock-absorbing layer (43) being arranged on the outer wall of the heat-insulating silica gel layer (42); A reinforcement layer (44) is fixed to the outer wall of the shock-absorbing layer (43).

3. The anti-aging tire inner tube according to claim 2, characterized in that: The opposite side of the shock-absorbing layer (43) and the heat-insulating silica gel layer (42) is an irregular structure, and the opposite side of the shock-absorbing layer (43) and the heat-insulating silica gel layer (42) are clamped and fixed.

4. The anti-aging tire inner tube according to claim 2, characterized in that: The corrosion-resistant layer (3) is fixed to the outer wall of the inner tube body (1), and the protective layer (5) is arranged on the outer wall of the reinforcement layer (44).

5. The anti-aging tire inner tube according to claim 2, characterized in that: The protective layer (5) comprises: a wear-resistant layer (51), wherein the wear-resistant layer (51) is fixed to the outer wall of the reinforcement layer (44); An adsorption groove (52) is provided obliquely on the outer wall of the wear-resistant layer (51).

6. The anti-aging tire inner tube according to claim 5, characterized in that: The adsorption groove (52) is opened on the outer wall of the wear-resistant layer (51), and the side of the wear-resistant layer (51) is in a chamfered structure.

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