CN2377114Y

CN2377114Y - Overpressure puncture-proof protector for tyre

Info

Publication number: CN2377114Y
Application number: CN 99228842
Authority: CN
Inventors: 牛传常
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-06
Filing date: 1999-07-06
Publication date: 2000-05-10
Anticipated expiration: 2009-07-06

Abstract

The utility model relates to an overpressure puncture-proof protector for tyres, wherein, a valve body of an intake valve is provided with a gap; a plug is installed out of the gap; a handle of the plug is sheathed with a spring. The utility model adjusts the pressure of the gas of an inner tyre by the spring force. When the inner pressure is larger, the plug leaves the gap and the gas overflows. When the inner pressure is reduced in the certain degree, the plug plugs up the gap and the gas does not overflow. The utility model can effectively prevent the tyre from puncturing when the pressure of the tyre exceeds the limitative value. The utility model can be installed on an original intake valve as well as can be generated with a new intake valve simultaneously. The utility model is a new substitute.

Description

Tire overvoltage explosive-proof protector device

The utility model relates to a kind of tyre protector, specifically a kind of tire overvoltage explosive-proof protector device.

The harm that tyre explosion produced has been well-known, and its major cause of blowing out is that interior air pressure is excessive.Existing inner tube of a tyre air inlet valve has only the air inlet function, the gas that can not overflow automatically, therefore, when inflation, if pressure is excessive, perhaps advance to cross in the journey, because the heat that cover tire and ground friction are produced at vehicle, be delivered to the gas of the inner tube of a tyre, air pressure increases in causing, also can cause tyre break.

The purpose of this utility model is the protector of a kind of gas that can overflow automatically of design, when interior air pressure increases to a certain limit value, can overflow portion gas automatically; After interior air pressure reduces, can stop the gas that overflows again automatically.

The utility model is to realize design goal like this, on the valve body 2 of tire air intake valve 1, open a breach 3 that is bell mouth shape, fall in breach 3 outsides stifled one with the horn-like plug that matches 4 of breach, it has certain elastomeric spring 5 in one in the outside of plug handle 6 cover, spring 5 one ends are fixed on the pressing plate 7, and pressing plate 7 is fixed on the valve body 2, and air leakage hole 8 is arranged on the pressing plate 7.

During use, select the spring 5 of appropriate elastic force, make plug 4 tightly block breach 3, inflate for tire with normal mode, when gaseous tension was excessive in the tire, spring 5 was compressed, and plug 4 leaves breach 3, and gas oozes out, and the gas that oozes out overflows from air leakage hole 8.Like this, the air pressure of the inner tube of a tyre just suitably reduces, and can not cause and blow out.After interior air pressure was reduced to suitable degree, spring 5 propped up plug 4, made plug 4 block breach 3 again, and the gas of the inner tube of a tyre just can't ooze out again, had guaranteed that the inner tube of a tyre has enough pressure.

The utility model volume is little, and on air inlet valve valve body 2, the neither normal inflation of influence or not again and travels, and the gas that can overflow automatically can be prevented permeation again automatically.Can become the substitute products of existing air inlet valve.

Accompanying drawing is a scheme drawing of the present utility model, among the figure 1, the tire air intake valve, and 2, valve body, 3, breach, 4, plug, 5, spring, 6, the plug handle, 7, pressing plate, 8, air leakage hole.

Below in conjunction with accompanying drawing, a non-limiting examples is illustrated.

On valve body 2 walls, open an inner small and outside big breach 3 that is bell mouth shape, make one with breach 3 horn-like identical plugs 4, the spring 5 in an elastic force appropriateness of the outside of plug handle 6 cover is fixed on the pressing plate 7 end of spring 5, pressing plate 7 is fixed on the valve body 2, has air leakage hole 8 on the pressing plate 7.Select the also pressure of regulating spring 6, make spring play the overvoltage protection effect.

The utility model is made easily, can install on original air inlet valve, can also produce simultaneously with new air inlet valve, becomes the substitute products of former air inlet valve, can play overvoltage protection effectively, prevents the effect of blowing out.

Claims

1, tire overvoltage explosive-proof protector device is characterized in that: 1. the inner small and outside big trumpet-shaped breach (3) that is is arranged on the tire air inlet valve valve body (2); 2. outer the blocking up of breach (3) has and the horn-like identical plug of breach (3) (4); 3. plug (4) has plug handle (6); 4. plug handle (6) periphery is with spring (5); 5. spring (5) one ends are fixed on pressing plate (7); 6. the pressing plate (7) that is fixed on the valve body (2) has excessive gas port (8).