CN2126356U

CN2126356U - Tyre valve

Info

Publication number: CN2126356U
Application number: CN 92209414
Authority: CN
Inventors: 茹斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-08
Filing date: 1992-05-08
Publication date: 1992-12-30

Abstract

Disclosed is a tyre valve, comprising a valve body with a unilateralism valve. The piston of the unilateralism valve is in the shape of taper column. The air intake of the valve body is provided with a sealing nut blocking head with a sealing ring, and the sealing nut blocking head plays the function of secondary seal. Because the utility model adopts the secondary seal, the requirement to the unilateralism valve is less, and delicate gas leaking is allowed, thus the tyre can make unilateralism open without high pressure during charging. And the secondary seal depends on the sealing nut blocking head and the sealing performance is good.

Description

Tyre valve

The utility model relates to the valve cock that a kind of tyre inflation is used, particularly a kind of both inflated laborsaving, the tyre valve of good airproof performance again.It includes the Valve tip body of a band one-way valve.

The patent No. is CN91202840.8's " piston type cycle tube valve cock " inner tube valve of providing, and its structure as shown in Figure 1.In Fig. 1, one boss plane is arranged in the endoporus of Valve tip body (2), piston pad (4), piston (6), spring (7) are housed on the boss plane, and piston pad (4), piston (6), spring (7) are got lodged in the endoporus of mouth body (2) by plug (9).It is to lean on big round end and hexagon nut (8), the pad (10) of mouth body to be pressed on the inner tube of a tyre (11) that this valve cock is installed on the inner tube of a tyre (11), round nut (5) is pressed on mouth body (2) on the rim and uses, round nut (3) is used for fixing the pump mouth and valve cock matches and usefulness, round nut (1) is that protection is used, during inflation, turn on round nut (1), connect inflator and just can inflate.This by one-way valve replacement valve inside, though be better than adopting the valve cock of valve inside, be difficult for becoming flat, good seal performance, easily processing, but this tyre valve only depends on the one-way valve sealing, in order to guarantee sealability, the air pressure compression ratio of one-way valve is big, spring also must have enough big pressure, could guarantee sealing, thereby this valve cock when inflation, must provide higher air pressure just can make one-way valve opens, with existing first suction tude inflation also difficulty to tyre inflation.

Task of the present utility model provides a kind of good seal performance, and very highpressure can make the tyre valve of one-way valve opens to tyre inflation again.

Task of the present utility model is finished as follows, this tyre valve, it includes the Valve tip body of band one-way valve, and the piston of one-way valve is the conical head cylinder, and the suction port of Valve tip body has a sealing nut plug that plays the band seal ring of secondary seal effect.

Pull down the sealing nut plug during inflation, use the sealing nut plug that the gas inlet plug of Valve tip body is dead behind the sufficient gas again, sealing nut plug and seal ring thereof play the secondary seal effect, this tyre valve is because of there being secondary seal, sealability to one-way valve is less demanding, even allow micro-leakage, adopting the piston of one-way valve is the conical head cylinder, make inflation pressure identical with resistance pressure, one-way valve is easily opened, and inflation need not high pressure, its good seal performance of secondary seal, the sealing nut plug is screwed, and the valve cock accessory is difficult for losing.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

The longitudinal sectional drawing of a kind of tyre valve that Fig. 2 provides for the utility model.

The longitudinal sectional drawing of the another kind of tyre valve that Fig. 3 provides for the utility model.

Further describe concrete structure of the present utility model and working condition thereof below in conjunction with Fig. 2, Fig. 3.

The tyre valve that the utility model provides, it includes the Valve tip body (2) of band one-way valve, and the suction port of Valve tip body (2) has a sealing nut plug (15) that plays the band seal ring (14) of secondary seal effect.Also can make the plug (9) of one-way valve among Fig. 1 into jump ring (12), this special-purpose jump ring also plays slow pressure effect.Adopting jump ring can avoid tire to be in operation gets loose, installs and uses more convenient.Because the employing secondary seal is low to the seal request of one-way valve, can save the piston pad (4) of one-way valve, piston (6) adopts the stronger conical head rubber column of hardness, has air flue around the cylinder of rubber column.Tyre valve among Fig. 3 is more suitable for using on the automobile tire.

Claims

1, a kind of tyre valve, it includes the Valve tip body of band one-way valve, and it is characterized by: the piston of one-way valve is the conical head cylinder, and the suction port of Valve tip body has a sealing nut plug that plays the band seal ring of secondary seal effect.