KR800002295Y1 - Air valve for tire tube - Google Patents

Abstract

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Description

Air valve for tire tubing

1 is an exploded perspective view of the present invention.

2 is a cross-sectional view of the present invention.

3 is a cross-sectional view of the air injection state of the present invention.

The present invention is used for various tire tubing, and is attached to a tire, a motorcycle, a bicycle, a motorcycle, and other tire tubing, and is easy to inject air, and is convenient to use. will be.

The core-type air valve, which is used to attach to various vehicles in the past, is made of a metal material and opens and closes the air by connecting the end of the core body and the backing pin connected to the opening / closing pin. The backing which is frequently connected to the end of the core body is supported by the spring on the flat plate, so even if the spring is insufficient elasticity or some foreign matter is attached to the backing, air leaks and the opening and closing pin is slightly bent during handling or use. There was a pulsation that relaxed and leaked air.

In addition, the conventional tire air valve is mainly composed of a metal material, so that the arrangement of weights attached to the vehicle and rotating at high speed is unbalanced, and the slack is relaxed due to shock and vibration, and the risk is always followed in an incomplete state. It was complicated, the handling was inconvenient and the sealing was inaccurate.

The present invention complements these conventional drawbacks, uses the valve body of the metal part as a synthetic resin, inserts the boxing into the valve body, and loads and assembles a valve, a spring support plate and a spring in the valve tube in one body. Since the valve is attached to the valve body, it is sturdy and can be conveniently assembled and dismantled, and will be described in detail with reference to the accompanying drawings.

In the inner circumferential surface injection portion, the spiral tank 1, the air distribution hole 2, and the upper surface of the outer circumferential surface of the body 4, which has the rodlets 3, in the inner center of the body 4, the backing insertion groove 5 After inserting the boxing (6) to form, the outer peripheral surface of the tip is a square (7) and the outer peripheral surface of the rear end forms a spiral bar (8), the tip portion of the trumpet-shaped air inlet (9) and the connecting slope (10) and two-stage In the valve tube 12 constituting the valve chamber 11, the outer end surface of the valve body 15 and the air flow groove 16, the tip of which protrudes the needle-shaped protrusion 13 and forms the connection slopes 14, 14 ′. The valve body and the spring support plate 17 which were formed in many were fixed, and the spring 18 was installed sequentially, and the bent core valve 19 was screwed in. Reference numeral 11a denotes a valve chamber once, 11b a two-stage valve chamber, 21 a vertical guide cylinder groove, 22 a slope portion, 5 a switching chamber, and 20 a connecting end.

Referring to the effect of the present invention made as follows.

First, in assembling, the body 4 is attached to a known tire tube, and then the valve body 15 is inserted into the valve chamber 11 inside the valve tube 12. Is positioned at the trumpet inlet (9) and the connecting slope (14) is connected to the connecting slope (10) in contact with the inlet (9), and then the valve and the spring support plate (17) is inserted into the back of the valve body (15) The core 18 is assembled and the core valve 19 is assembled by bending the rear end of the valve tube 12.

When the core valve 19 is screwed into the inner screw 1 of the body 4, the core valve 19 is screwed into a square 7 on the outer circumferential surface of the tip of the valve tube 12 using a wrench or the like.

Next, when the needle-shaped protrusion 9 protruding from the trumpet inlet 9 is pressed to inject air, the connecting slope 14 of the valve body 15 is separated from the connecting slope 10 of the valve chamber 11 by a two-stage valve chamber. Pushing back to 11b, the spring 18 is retracted so that air is supplied from the inlet 9 and then passes through the distribution groove 16 on the outer circumferential surface of the valve and spring support plate 17 and back to the valve chamber 11. It is pushed and injected into the tub through the air distribution hole 2 of the body 4. When the injection is completed, the valve body 15 is pushed toward the injection hole 9 by stopping the air injection at the injection hole 9 and at the same time due to the strong force to backflow the air filled in the tub and the elasticity of the spring 18. When it comes out, it passes through the two-stage valve chamber slope part 22 and passes through the guide cylinder groove 21 which is vertical, and the valve connection slope part 14 is connected to the valve inlet port inlet connection slope part 10, and the valve connection slope part 10 The pressure angle of the valve body slope portion 14 is reduced in the form of a dotted line 14 ', and the valve body upper surface 23' is in close contact with the inlet bottom surface 23 to seal the completely injected air.

The structure of the present invention is simple and accurate, and the opening and closing operation is accurate, and even if the pressure is continuously applied in the tub, there is no end of air leakage, and it is effective that mass production can be easily handled and used in use.

Claims (1)

As shown in the figure, a spiral tank 1, an air distribution hole 2, and an upper portion of the outer circumferential surface of the inner circumferential surface injection portion form a backing insertion groove 5 in the inner central portion of the body 4 in which the rodlet 3 is laid out. In the case of inserting the boxing 6, the outer peripheral surface of the front end is a square (7), and the outer peripheral surface of the rear end forms a spiral bar (8), and a trumpet-shaped inlet (9), a connecting slope (10) and a two-stage valve chamber (11) at the front end An air valve for tire tubing, which is made by attaching a core valve 19 that bends a valve tube 12 constituting a body into the body 4.