Tire valve with special shaped rubber base

Abstract

The utility model discloses an inner tube air cock of special-shaped rubber seat, including hollow air cock body and rubber seat, the rubber seat fixed mounting is in the lower extreme of air cock body, and the outer edge of rubber seat is integral arc, non-integral arc, non-arc structure or the combination of at least two kinds. The utility model discloses simple structure, reasonable in design has increased the contact area of rubber seat edge and the body of tyre, has promoted the degree of fit with the body of tyre, has reduced the stress change of air cock rubber seat and the body of tyre fit edge to thereby reduced the phenomenon of tearing on the market mouth edge, has prolonged the service life of rubber seat air cock, has eliminated the security hidden danger that rubber seat air cock damage has brought.

Description

Technical Field

[0001] This utility model relates to the technical field of accessories for transportation vehicles, specifically to an inner tube valve with a non-standard rubber seat. Background Technology

[0002] The valve is mainly used for inflating, sealing, and deflating tires. It is an essential safety component that ensures vehicle operation. Valves are divided into tubed valves and tubeless valves. Tubeless valves can be further divided into valves with a base and valves without a base.

[0003] Existing inner tube valves are mostly made of rubber with a thickness and hardness higher than that of the inner tube body, and they contain a metal copper rod inside. The entire rubber seat is usually circular, and the edge of the valve is on the arc of the circular size. This makes the entire edge of the inner tube valve a stress concentration area. After it is assembled with the outer tire / rim / shroud, the edge is at a corner position. Due to the friction between the inner tube and the outer tire cavity, the entire edge of the valve and part of the inner tube are forced to fill and adhere to the shroud under air pressure. The valve has a high fixed elongation stress and only provides a small amount of tension, while the tire body provides excessive tension. As a result, tearing and crushing problems easily occur at the edge of the valve, reducing the service life of the rubber seat valve and posing safety hazards such as bursting after inflation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art, where the edge of a circular rubber seat is located in a stress concentration area, making it prone to tearing and damage. Therefore, this invention provides an inner tube valve with a non-circular rubber seat.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an inner tube valve with a special-shaped rubber seat, comprising a hollow valve body and a rubber seat, wherein the rubber seat is fixedly installed at the lower end of the valve body, and the outer edge of the rubber seat is an integral arc shape, a non-integral arc shape, a non-arc shape structure, or a combination of at least two of the above.

[0006] The rubber seat with the above-mentioned outer edge shape can avoid the outer edge of the rubber seat being in a stress concentration area, and avoid the outer edge of the rubber seat being in a corner position after the tire is inflated, thereby avoiding tearing and squeezing of the rubber seat edge.

[0007] Furthermore, the orthographic projection of the adhesive base is elliptical, and its outer edge is an integral arc curve, which is arranged along the circumference of the adhesive base.

[0008] Furthermore, the orthographic projection of the adhesive base is elliptical, and its outer edge is a non-integral arc, composed of multiple sequentially connected and spaced-apart outer and inner arcs, arranged along the circumference of the adhesive base.

[0009] Furthermore, the outer edge of the adhesive base is a non-arc structure, formed by several straight lines joined end to end, with an obtuse angle between two adjacent straight lines, the angle extending outwards and arranged circumferentially around the adhesive base.

[0010] Furthermore, the orthographic projection of the adhesive base is a rhombus-like or square-like shape, and its outer edge is composed of a non-integral arc, which is composed of multiple outer arc lines and inner arc lines that are connected sequentially and arranged at intervals.

[0011] Furthermore, the lower outer side of the valve body is provided with an annular flange, and the rubber seat is vulcanized and formed on the lower end of the valve body and covers the annular flange of the valve body; the rubber seat adopts at least one rubber material vulcanized and formed into an integral structure, and the thickness of the rubber seat gradually decreases from its position near the middle valve body to the edge of the rubber seat, and the edge of the rubber seat is bonded and fixed to the inner tube body.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention has a simple structure and reasonable design, which increases the contact area between the edge of the valve seat and the tire body, improves the fit with the tire body, reduces the stress change of the valve seat and the tire body fit edge, thereby reducing the phenomenon of valve tearing on the market, extending the service life of the valve seat, and eliminating the safety hazards caused by damage to the valve seat. Attached Figure Description

[0013] Figure 1 This is a front view of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the first embodiment of the adhesive base in this utility model;

[0015] Figure 3 This is a top view of the second embodiment of the adhesive base in this utility model;

[0016] Figure 4 for Figure 3 Enlarged view of the structure of section A;

[0017] Figure 5 This is a top view of the third embodiment of the adhesive base in this utility model;

[0018] Figure 6 This is a top view of the fourth embodiment of the adhesive base in this utility model;

[0019] In the diagram: 1. Valve body, 2. Rubber seat, 21. Outer arc, 22. Inner arc, 23. Straight line, 24. Overall arc curve. Detailed Implementation

[0020] It should be noted that in the description of this utility model, terms such as "upper", "lower", "inner", "outer", "coaxial", "center" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only used to facilitate the description of the structural relationship of each component in this utility model and do not specifically mean that any component in this utility model must have a specific orientation, be constructed and operated in a specific orientation. They should not be construed as limitations on this utility model.

[0021] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0023] Example 1,

[0024] like Figure 1 As shown, an inner tube valve with a special-shaped rubber seat includes a hollow valve body 1 and a rubber seat 2. The valve body 1 can be adjusted to different shapes according to the tire product model requirements, and can be a bent structure or a straight rod structure. The lower end of the valve body 1 is fixedly provided with an integrally formed annular flange. The rubber seat 2 is formed by vulcanization at the lower end of the valve body 1 and covers the annular flange of the valve body 1, thereby being fixedly installed at the lower end of the valve body 1. The rubber seat 2 adopts an integral structure formed by vulcanization and bonding of rubber material. The rubber seat 2 is thicker near the middle of the valve body 1 and then gradually thins towards the circumferential edge of the rubber seat 2. The thinned edge of the rubber seat is fixed to the inner tube body by bonding.

[0025] The outer edge of the adhesive base 2 is designed with a non-uniform arc shape, such as... Figure 2 As shown, the outer edge is composed of multiple segments of outer arc lines 21 and inner arc lines 22 that are connected end to end and arranged at intervals. It is set along the entire circumference of the rubber seat 2, so that the downward orthographic projection of the rubber seat 2 is elliptical. In use, the major axis of the rubber seat 2 is on the circumferential ring of the inner tube, and its minor axis is on the radial line of the inner tube. The connection between the outer arc lines 21 and the inner arc lines 22 is rounded to prevent inward tearing. The setting of the entire outer edge increases the bonding area between the rubber seat 2 and the inner tube body, preventing stress concentration at the edge of the rubber seat 2 and damage caused by poor pre-bonding.

[0026] Example 2,

[0027] An inner tube valve with a non-circular rubber seat also includes a hollow valve body 1 and a rubber seat 2. Its overall structural features are similar to the technical solution in Embodiment 1 above. The difference lies in that the outer edge of the rubber seat 2 is designed as a non-arc structure, such as... Figure 3 and Figure 4 As shown, the non-arc structure is formed by several straight lines 23 connected end to end. The angle between two adjacent straight lines 23 is obtuse, and the angle ends extend outwards. It is arranged along the entire circumference of the adhesive base 2. The downward orthographic projection of the adhesive base 2 is also elliptical. The outward protruding connection point between two adjacent straight lines 23 can effectively prevent edge tearing.

[0028] Example 3,

[0029] An inner tube valve with a non-uniform rubber seat also includes a hollow valve body 1 and a rubber seat 2. Its overall structural features are similar to the technical solution in Embodiment 1 above. The difference lies in that the outer edge of the rubber seat 2 is not integrally curved. This non-uniform curve is composed of multiple segments of outer arc lines 21 and inner arc lines 22 that are sequentially connected end-to-end and spaced apart, arranged along the entire circumference of the rubber seat 2. This results in the lower orthographic projection of the rubber seat 2 having a rhomboid structure. Figure 5 As shown, during use, the major axis of the rubber seat 2 is located on the circumferential ring of the tire, and the minor axis of the rubber seat 2 is located on the meridian of the tire; the connection between the outer arc 21 and the inner arc 22 is made with a smooth transition to prevent inward tearing.

[0030] Example 4,

[0031] An inner tube valve with a non-circular rubber seat also includes a hollow valve body 1 and a rubber seat 2. Its overall structural features are similar to the technical solution in Embodiment 1 above. The difference lies in that the outer edge of the rubber seat 2 is an integral arc curve, and its downward orthographic projection is elliptical. Figure 6 As shown, the ratio of the major axis to the minor axis of the ellipse can be adjusted according to actual production needs to meet the requirements of different tire inner tube models.

[0032] In addition, based on the matching requirements of various models of inner tubes with outer tires / mattresses / rims, and in order to avoid stress concentration at the valve stem edge and damage caused by poor pre-fitting, various non-circular forms, such as arc, zigzag, or a combination thereof, are used to adjust the valve stem rubber seat to meet the required edge size requirements.

[0033] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An inner tube valve with a non-standard rubber seat, comprising a hollow valve body and a rubber seat, characterized in that: The rubber seat is fixedly installed at the lower end of the valve body, and the outer edge of the rubber seat is a non-integral arc or non-arc structure; Among them, a non-integral arc refers to a shape composed of multiple segments of outer and inner arcs that are connected sequentially and arranged at intervals. The non-arc structure refers to a structure formed by several straight lines joined end to end, with an obtuse angle between two adjacent straight lines, the angle extending outwards and arranged around the circumference of the rubber base.

2. The inner tube valve of the irregularly shaped rubber seat according to claim 1, characterized in that: The orthographic projection of the adhesive base is either rhomboid or square.

3. The inner tube valve of the irregularly shaped rubber seat according to claim 1, characterized in that: The lower outer side of the valve body is provided with an annular flange, and the rubber seat is vulcanized and formed on the lower end of the valve body and covers the annular flange of the valve body; the rubber seat is a one-piece structure vulcanized and formed by at least one rubber material, and the thickness of the rubber seat gradually decreases from its position near the middle valve body to the edge of the rubber seat, and the edge of the rubber seat is bonded and fixed to the inner tube body.

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