CN201013980Y - Plastics integral rubber flat-head thread-sealing bidirectional air sealed type inside valve - Google Patents

Abstract

The utility model relates to a tyre tube airtight component for a manpowered transport vehicle, in particular to a sealing double-way airtight valve core with a plastic wholeness and flat rubber line. The valve core comprises a core body, a rubber core rib, a sealing ring, a clamper and a sealing cap. An inner hole of the rubber core rib arranged on the core body takes the form of a straight hole without any taper; a sealing ring line arranged on the sealing surface between the lower end of the core body and the rubber core rib is adopted as a line sealing. The utility model has simple and reasonable structure, simple manufacturing technique, high efficiency and good sealing performance.

Description

A kind of plastic monoblock rubber tack linear sealing bidirectional gas sealed type valve inside

Technical field

The utility model relates to the close device of air of the inner tube of a tyre among a kind of manpower transport facility, a kind of specifically plastic monoblock rubber tack linear sealing bidirectional gas sealed type valve inside.

Background technique

Traditional power car valve inside is to adopt made such as copper, aluminum alloy, utilizes emulsion tube to be sleeved on one of metal air tube and brings in the close gas effect that realizes, the shortcoming of this kind valve inside is a lot.In order to solve the above problems, the inventor has applied for that the patent No. is 96225201.8 " whole bidirectional gas sealed type valve inside ", the patent No. is 97212501.9 " spherical whole bidirectional gas sealed type valve inside ", the patent No. is 99217391.4 " the whole bidirectional gas sealed type valve inside of multi-angle Rubber end ", foregoing invention has solved the shortcoming and defect of traditional power car valve inside to a certain extent, and the application in each stage all has the improvement of structure in various degree, but still there is certain shortcoming and defect in actual use, be in particular in: 1., because on original valve inside core body endoporus, under adopt the taper hole form, the technology production that its mould production must employing be loosed core up and down, complex manufacturing is at the bottom of the efficient, the cost height; 2., the mode of face contact seal is adopted in the sealing between original valve inside core body lower end and rubber core muscle, and shortcoming is when using because dust in the accumulation of sealing surface, makes valve inside leak gas, and sealing effect is poor.

Summary of the invention

The purpose of this utility model is to provide a kind of simple and reasonable, adopts that straight hole is unidirectional looses core, the mode of structure of linear sealing, and production technology is simple, efficient height, the plastic monoblock rubber tack linear sealing bidirectional gas sealed type valve inside of good seal performance.

The purpose of this utility model is to realize like this, this valve inside comprises core body, rubber core muscle, seal ring, clamp, sealed cap, the endoporus that the rubber core muscle is set on the described core body adopts the form of straight hole, do not have tapering, have a sealing loop wire on core body lower end and the rubber core muscle contact seal face, promptly adopt the mode of linear sealing.

The utility model is owing to become the structure of straight hole with the bore design of valve inside core body, will adopt the mode of linear sealing below the core body with rubber core muscle contact seal end simultaneously, makes its structure advantages of simple more, and production technology is simple, efficient height, good seal performance.

Description of drawings

Fig. 1 is the utility model overall structure schematic representation.

Fig. 2,3 be below the utility model core body with rubber core muscle contact seal end structure schematic representation.

Embodiment

By shown in Figure 1: this valve inside comprises core body 1, rubber core muscle 2, seal ring 3, clamp 4, sealed cap 5, the endoporus 7 that rubber core muscle 2 is set on the described core body 1 adopts the form of straight hole, do not have tapering, have a sealing loop wire 6 on core body 1 lower end and the rubber core muscle 2 contact seal faces 8, promptly adopt the mode of linear sealing.

During use this valve inside is installed in the valve cock, tighten with big hoop and to compress, make core body 1 and valve cock sealing by seal ring 3, during inflation sealed cap 5 is backed out, gas by core body 1 central through bore with rubber core muscle 2 elongate, gas enters the inner tube of a tyre, stop to inflate the back since in the elastic force of rubber core muscle 2 self and the tire pressure of gas make its sealing, tighten sealed cap 5 at last, finish the whole operation process, this product has reached each inner tube of a tyre factory process matched therewith and each user's requirement.

Claims (2)

1. plastic monoblock rubber tack linear sealing bidirectional gas sealed type valve inside, this valve inside comprises core body (1), rubber core muscle (2), seal ring (3), clamp (4), sealed cap (5), it is characterized in that: described core body (1) is gone up the form that endoporus (7) adopts straight hole, and core body (1) lower end sealing surface (8) adopts the mode of linear sealing.

2. a kind of plastic monoblock rubber tack linear sealing bidirectional gas sealed type valve inside according to claim 1 is characterized in that: have a sealing loop wire (6) on described core body (1) lower end and rubber core muscle (2) the contact seal face (8).

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