Vacuum tire inflating valve with sealing reinforcing ring

Abstract

The utility model relates to the technical field of inflating valves, and discloses a vacuum tire inflating valve with a sealing reinforcing ring, which comprises an inflating valve body, a sealing head is fixedly mounted at one end of the inflating valve body, a valve core is arranged in the inflating valve body far away from the sealing head, the valve core comprises a core body, and a core cap is fixedly mounted on the core body. The core body is in threaded connection in the inflating valve body through a core cap, a core rod is installed in the core cap in a penetrating mode, a valve seat and a spring seat are fixedly installed on the outer side of the core rod, and a compression spring is further arranged on the core rod between the inner bottom of the core body and the valve seat in a sleeved mode. The outer side of the core body is provided with a plurality of second sealing grooves, and the lower end of the core body is provided with a sealing ring of which the inner side and the outer side are provided with reinforcing grooves, so that when the upper end of the core seat abuts against the core body through the sealing reinforcing ring, the sealing ring is clamped into a third sealing groove, and then multiple sealing between the sealing reinforcing ring and the core body is achieved; and the airtight reliability of the whole valve core can be improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a vacuum tire valve with a sealing reinforcement ring. Background Technology

[0002] The tubeless tire valve is an independent component that is directly fixed to the rim and is used for inflation and sealing. It mainly consists of a metal base, a rubber seal, and a valve core. The metal base fixes the rim, the rubber seal achieves airtightness, and the valve core controls the flow of gas.

[0003] The valve core inside the valve stem is the core sealing component. Traditional valve cores often use a single-layer rubber seal or a simple spring structure, which are prone to sealing failure under high-frequency vibration or pressure fluctuations. That is, when the free length of the spring is shortened or the stiffness coefficient is reduced to a certain extent, the thrust generated between the core and the seal is insufficient to offset the tire pressure, and a tiny gap appears between the core and the seal, allowing gas to leak slowly. Therefore, a single sealing layer is difficult to effectively prevent gas leakage. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum tire valve with a sealing reinforcement ring, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A vacuum tire valve with a sealing reinforcement ring includes a valve body, a sealing head fixedly installed at one end of the valve body, a valve core disposed in the valve body away from the sealing head, the valve core including a core body, a core cap fixedly installed on the core body, and the core body threadedly connected to the valve body through the core cap, a core rod inserted into the core cap, a valve seat and a spring seat fixedly installed on the outer side of the core rod respectively, a compression spring also fitted on the core rod located between the bottom of the core body and the valve seat, the lower end of the core rod extending to the lower part of the core body and fixedly installed with a core seat, an installation groove opened on the core seat, a sealing reinforcement ring fixedly installed in the installation groove, a first sealing groove opened in the sealing reinforcement ring, and multiple sealing plates fixedly installed inside the first sealing groove.

[0007] As a further preferred embodiment of this utility model, an outer sealing gasket is fixedly installed on the outside of the core body. By setting an outer sealing gasket tightly against the outer wall of the core body, the sealing performance at the connection between the valve body and the core body can be improved when the core body is installed in the valve body.

[0008] As a further preferred embodiment of this utility model, a plurality of second sealing grooves are provided on the lower outer side of the core. The provision of multiple second sealing grooves on the outer side of the core can be combined with multiple sealing plates to improve the sealing performance between the sealing reinforcement ring and the core.

[0009] As a further preferred embodiment of this utility model, a sealing ring is fixedly installed at the lower end of the core, and reinforcing grooves are provided on both the inner and outer sides of the sealing ring.

[0010] As a further preferred embodiment of this utility model, a third sealing groove is provided at the bottom of the first sealing groove. Reinforcing protrusions are fixedly installed on both sides of the third sealing groove, and the shape of the third sealing groove is the same as the shape of the sealing ring. The sealing ring is fitted into the third sealing groove, and the two reinforcing grooves are respectively fitted into one side of the corresponding reinforcing protrusion. The bottom of the first sealing groove abuts and seals with the bottom of the core, and the sealing ring, in conjunction with the inner and outer reinforcing grooves, is fitted into the third sealing groove to achieve the function of multiple sealing.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In this invention, multiple second sealing grooves are opened on the outer side of the core body, and a sealing ring with reinforcing grooves on both the inner and outer sides is provided at the lower end of the core body. This allows the sealing ring to be engaged in the third sealing groove when the upper end of the core seat comes into contact with the core body through the sealing reinforcing ring, thereby achieving multiple seals between the sealing reinforcing ring and the core body, which can improve the airtight reliability of the entire valve core. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the valve core structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the valve core of this utility model;

[0016] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 This is a schematic diagram of the sealing reinforcement ring structure of this utility model.

[0018] In the diagram: 1. Valve body; 2. Sealing head; 3. Valve core; 4. Core body; 5. Core cap; 6. Core rod; 7. Valve seat; 8. Spring seat; 9. Compression spring; 10. Core seat; 11. Mounting groove; 12. Sealing reinforcement ring; 13. First sealing groove; 14. Outer sealing gasket; 15. Second sealing groove; 16. Sealing ring; 17. Reinforcing groove; 18. Sealing plate; 19. Third sealing groove; 20. Reinforcing convex ring. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-5 As shown, the present invention provides a vacuum tire valve with a sealing reinforcing ring, comprising a valve body 1, a sealing head 2 fixedly installed at one end of the valve body 1, a valve core 3 disposed inside the valve body 1 away from the sealing head 2, the valve core 3 comprising a core body 4, a core cap 5 fixedly installed on the core body 4, and the core body 4 being threadedly connected to the valve body 1 through the core cap 5, a core rod 6 inserted inside the core cap 5, a valve seat 7 and a spring seat 8 fixedly installed on the outer side of the core rod 6 respectively, a compression spring 9 also fitted on the core rod 6 located between the bottom of the core body 4 and the valve seat 7, the lower end of the core rod 6 extending to the lower part of the core body 4 and fixedly installed with a core seat 10, an installation groove 11 opened on the core seat 10, a sealing reinforcing ring 12 fixedly installed in the installation groove 11, a first sealing groove 13 opened in the sealing reinforcing ring 12, and multiple sealing plates 18 fixedly installed inside the first sealing groove 13.

[0021] like Figure 2 As shown, an outer sealing gasket 14 is fixedly installed on the outside of the core body 4. By placing an outer sealing gasket 14 tightly against the outer wall of the core body 4, the sealing performance at the connection between the valve body 1 and the core body 4 can be improved when the core body 4 is installed inside the valve body 1.

[0022] like Figures 2-5As shown, multiple second sealing grooves 15 are provided on the lower outer side of the core 4. These grooves can work with multiple sealing pieces 18 to improve the sealing performance between the sealing reinforcement ring 12 and the core 4. A sealing ring 16 is fixedly installed at the lower end of the core 4. Reinforcing grooves 17 are provided on both the inner and outer sides of the sealing ring 16. A third sealing groove 19 is provided at the bottom of the first sealing groove 13. Reinforcing protrusions 20 are fixedly installed on both sides of the third sealing groove 19. The shape of the third sealing groove 19 is the same as that of the sealing ring 16. The sealing ring 16 is fitted into the third sealing groove 19, while the two reinforcing grooves 17 are fitted into one side of the corresponding reinforcing protrusions 20. The bottom of the first sealing groove 13 abuts against the bottom of the core 4 for sealing, and the sealing ring 16, in conjunction with the inner and outer reinforcing grooves 17, is fitted into the third sealing groove 19, achieving a multi-seal function.

[0023] It should be noted that this utility model is a vacuum tire valve with a sealing reinforcement ring. The compression spring 9 is fitted on the core rod 6 between the bottom of the core body 4 and the valve seat 7. The elastic thrust can make the valve seat 7 fit tightly against the sealing surface of the core body 4 to achieve a basic seal. The lower end of the core rod 6 extends to the bottom of the core body 4 to fix the core seat 10. The sealing reinforcement ring 12 is fixed in the mounting groove 11 of the core seat 10. The sealing plate 18 on its inner side is embedded in the second sealing groove 15 on the outer side of the core body 4 to form the first auxiliary seal. The outer sealing gasket 14 on the outer side is tightly attached to the inner wall of the valve body 1, which enhances the sealing performance at the connection between the core 4 and the valve body 1, forming a second auxiliary seal. The sealing ring 16 at the lower end of the core 4 is fitted into the third sealing groove 19 of the sealing reinforcement ring 12, and the reinforcing grooves 17 on the inner and outer sides of the sealing ring 16 are engaged with the reinforcing convex rings 20 on both sides of the third sealing groove 19. The third three-dimensional seal is formed by "groove nesting and convex-concave matching", which effectively solves the problem of easy failure of the single seal of the traditional valve core 3.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum tire valve with a sealing reinforcing ring, characterized in that: The valve body includes a valve stem body (1), one end of which is fixedly fitted with a sealing head (2). A valve core (3) is disposed inside the valve stem body (1) away from the sealing head (2). The valve core (3) includes a core body (4), on which a core cap (5) is fixedly fitted. The core body (4) is threadedly connected to the valve stem body (1) through the core cap (5). A core rod (6) is inserted inside the core cap (5). A valve seat (7) and a spring are fixedly fitted on the outside of the core rod (6). The core rod (6) located between the bottom of the core body (4) and the valve seat (7) is also fitted with a compression spring (9). The lower end of the core rod (6) extends to the bottom of the core body (4) and is fixedly installed with a core seat (10). The core seat (10) has an installation groove (11). A sealing reinforcing ring (12) is fixedly installed in the installation groove (11). A first sealing groove (13) is opened in the sealing reinforcing ring (12). Multiple sealing plates (18) are fixedly installed on the inner side of the first sealing groove (13).

2. The vacuum tire valve with a sealing reinforcing ring according to claim 1, characterized in that: An external sealing gasket (14) is fixedly installed on the outside of the core (4).

3. The vacuum tire valve with a sealing reinforcing ring according to claim 1, characterized in that: Multiple second sealing grooves (15) are provided on the lower outer side of the core (4).

4. A vacuum tire valve with a sealing reinforcing ring according to claim 1, characterized in that: A sealing ring (16) is fixedly installed at the lower end of the core (4), and a reinforcing groove (17) is provided on both the inner and outer sides of the sealing ring (16).

5. A vacuum tire valve with a sealing reinforcing ring according to claim 4, characterized in that: The bottom of the first sealing groove (13) is provided with a third sealing groove (19). Both sides of the third sealing groove (19) are fixedly installed with reinforcing protrusions (20). The shape of the third sealing groove (19) is the same as that of the sealing ring (16). The sealing ring (16) is fitted into the third sealing groove (19), while the two reinforcing grooves (17) are respectively fitted into one side of the corresponding reinforcing protrusions (20).

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