CN201318484Y

CN201318484Y - Novel valve core

Info

Publication number: CN201318484Y
Application number: CNU2008201554160U
Authority: CN
Inventors: 王平
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-14
Filing date: 2008-11-14
Publication date: 2009-09-30
Anticipated expiration: 2018-11-14

Abstract

The utility model relates to a novel valve core used on a tyre, in particular to a novel valve core to realize the sealing effect by using the contact between a right-angled point or an oblique-angled point of a gasket and an inner conical surface of a core body. The novel valve core comprises the core body, a core bar, a core base, a core cap, a spring, a sealing ring and the gasket, wherein, the core cap is clamped at the upper end of the core body; the core bar is arranged in the core body; the upper end of the core bar is exposed out of the core body; the spring is sleeved on the core bar; the upper end of the spring is propped against the core cap, while the lower end thereof is propped against an annular platform inside the core body; the core base is fixedly connected at the lower end of the core bar; the gasket is arranged on the core base; and the sealing ring is arranged outside core body. The novel valve core is characterized in that the lower end of the core body is the inner conical surface; and the angle of the gasket is in contact with the inner conical surface. The gasket is in contact with the inner conical surface of the lower end of the core body through an angle point or an oblique plane of the angle, and the larger the atmospheric pressure is, the closer the contact between the gasket and the inner conical surface is, so that the high-performance sealing effect is ensured.

Description

Novel valve inside

Technical field

The utility model is a kind of valve inside that is used on the tire, and the particularly a kind of right angle electrical of utilizing sealing gasket or oblique angle point contact with the inner conical surface of core body and realize the novel valve inside that seals.

Background technique

In the prior art, valve inside is that the end face with core body contacts with the surface of sealing gasket and realizes that sealing, this seal form are to realize with contacting of face by face, so sealability is bad, stopped up by the copper foam easily, thus the generation gas leak phenomenon.

Summary of the invention

The purpose of this utility model is in order to overcome the existing valve inside defective of gas leakage easily, invents a kind of right angle electrical of utilizing sealing gasket or oblique angle point and contacts with the inner conical surface of core body and realize the novel valve inside that seals.

The purpose of this utility model realizes as follows: described novel valve inside, comprise core body, core bar, core print seat, the core cap, spring, seal ring and sealing gasket, the upper end of the core body that the core cap is connected to, core bar is located in the core body, the outside at core body is exposed in the upper end of core bar, be with spring on the core bar, the upper end of spring withstands on the core cap, the lower end of spring withstands on the annular table of core body inboard, core print seat is fixed in the lower end of core bar, and core print seat is provided with sealing gasket, and the core body outside is provided with seal ring, it is characterized in that: the lower end of core body is an inner conical surface, and the bight of sealing gasket contacts with inner conical surface.

The bight of described sealing gasket can be a top of the horn.

The bight of described sealing gasket also can be a little inclined-plane.

Good effect of the present utility model is as follows: because sealing gasket is to contact with the inner conical surface of core body lower end with the top of the horn in own bight or the little inclined-plane in bight, when air pressure was big more, both just contacted closely more, so guaranteed high performance sealing effect.

Description of drawings

Fig. 1 is the utility model structural drawing

Among the figure: 1 core body, 2 core bars, 3 core print seats

4 core caps, 5 springs, 6 seal rings

7 sealing gaskets, 8 annular table, 9 inner conical surfaces

Embodiment

As shown in Figure 1, described novel valve inside, comprise core body 1, core bar 2, core print seat 3, core cap 4, spring 5, seal ring 6 and sealing gasket 7, the upper end of the core body 1 that core cap 4 is connected to, core bar 2 is located in the core body 1, the outside at core body 1 is exposed in the upper end of core bar 2, be with spring 5 on the core bar 2, the upper end of spring 5 withstands on the core cap 4, and the lower end of spring 5 withstands on the annular table 8 of core body 1 inboard, and core print seat 3 is fixed in the lower end of core bar 2, core print seat 3 is provided with sealing gasket 7, core body 1 outside is provided with seal ring 6, it is characterized in that: the lower end of core body 1 is an inner conical surface 9, and the bight of sealing gasket 7 contacts with inner conical surface 9.

The bight of described sealing gasket 7 can be a top of the horn.

The bight of described sealing gasket 7 also can be a little inclined-plane.

Claims

1. novel valve inside, comprise core body, core bar, core print seat, core cap, spring, seal ring and sealing gasket, the upper end of the core body that the core cap is connected to, core bar is located in the core body, the outside at core body is exposed in the upper end of core bar, be with spring on the core bar, the upper end of spring withstands on the core cap, the lower end of spring withstands on the annular table of core body inboard, core print seat is fixed in the lower end of core bar, and core print seat is provided with sealing gasket, and the core body outside is provided with seal ring, it is characterized in that: the lower end of core body is an inner conical surface, and the bight of sealing gasket contacts with inner conical surface.

2. novel valve inside according to claim 1 is characterized in that: the bight of described sealing gasket can be a top of the horn.

3. novel valve inside according to claim 1 is characterized in that: the bight of described sealing gasket also can be a little inclined-plane.