CN87205987U

CN87205987U - Cushioning type air valve spout of light inner tyre

Info

Publication number: CN87205987U
Application number: CN 87205987
Authority: CN
Inventors: 张宝发
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-03-31
Filing date: 1987-03-31
Publication date: 1987-11-04

Abstract

The utility model discloses a cushioning type air valve spout of light inner tyre which is especially suitable for man-power vehicles and is designed to overcome the defects of easy rupture of a rubber pipe and easy gas leakage of the existing air valve spout. The utility model is characterized in that a coil spring, a rod plug, and a soft gasket between a main body self and an air pressure screw nut, and the soft gasket is utilized to clog a gas nozzle on the air pressure screw nut. The operation of the inflation is same with the prior art. The utility model has the advantages of good sealing effect, high durability, and less leakage. The often inflation is not needed.

Description

Cushioning type air valve spout of light inner tyre

The utility model is that a kind of light-duty inner tube valve that is specially adapted to rickshaw is chewed.

It is to make Sealing at valve inside bottom one section sebific duct of cover that present light-duty inner tube valve is chewed, pressure air nut is pressed in the valve inside card two indentation, there of main body bodice upper wall, the top of sebific duct is closely contacted with interior prominent annulus end face in the main body bodice, and the pore of valve inside is then blocked in the bottom of sebific duct.But in fact seepage all can take place in above-mentioned two places of sebific duct, will inflate once every five to seven days, and, to fill several times after the gas, the crack will appear in sebific duct, has filled gas sometimes evening, and bring many troubles with regard to light leak to the user inferior morning.

The design the purpose of this utility model is both to have reduced gas leakage, prolongs the working life of Sealing again.

The utility model is a design improvement on the basis of existing valve nozzle.Its main feature is: the perisporium that is with the main body bodice of compress gasket and gland nut is perfect mouthful, covering pressure air nut in main body bodice upper end is provided with prominent gas and chews, include the bar plug between main body bodice and the pressure air nut, bar plug bottom is with spring, and bar portion beyond the Great Wall is installed with cushion film.When screwing pressure air nut, spring makes bar cushion film beyond the Great Wall block gas and chews.Charge operation is then the same with prior art.

The most handy rubber manufacturing of the cushion film of this valve nozzle.

Evidence, the utility model good sealing effect, seepage is few, will inflate once every 15 talentes approximately.Simultaneously, the cushion film pressurized is more even, and is durable in use.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a bar plug schematic representation of the present utility model;

Fig. 3 is a pressure air nut schematic representation of the present utility model.

As shown in the figure, main body bodice (1), compress gasket (2) and gland nut (3) are installed by prior art, then spring (6) is put into the main body bodice, insert in the spring bottom that makes top be installed with the bar plug (5) of cushion film (7), when covering pressure air nut (4), the gas that makes the upper end of bar plug penetrate pressure air nut is chewed in (8), again pressure air nut be tightened on main body greatly on one's body, cushion film is just chewed the gas of pressure air nut and is blocked.

With the passing of time crooked loosening and the damage inner tube of a tyre also is equipped with lock nut (9) at main body bodice middle part usually in order to prevent valve nozzle, cooperate with gland nut (3) and clamp the wheel steel ring, with fixing valve nozzle.

During inflation, air pressure overcomes the elastic force of spring and the catch bar plug moves down, and cushion film is also chewed along with leaving gas, gas around the bar plug through spring and enter main body bodice endoporus.After the inflation, it is tightlyer stifled that the elastic force that the air pressure of the inner tube of a tyre adds upper spring makes cushion film chew gas.As bleeding off some gas, press the bar plug downwards and get final product.

Claims

1, a kind of light-duty inner tube valve of cushion type that is specially adapted to rickshaw is chewed, have main body bodice (1), compress gasket (2), gland nut (3) and pressure air nut (4), it is characterized in that including between main body bodice and the pressure air nut bar plug (5), bar plug bottom is with spring (6), bar portion beyond the Great Wall is installed with cushion film (7), said main body bodice perisporium is complete, and said pressure air nut has upward prominent gas to chew (8).

2,, it is characterized in that in the middle part of the main body bodice lock nut (9) being housed also by the described valve nozzle of claim 1.

3, by claim 1 or 2 described valve nozzles, it is characterized in that the most handy rubber manufacturing of cushion film.