TYRE AIR VALVE INSIDE KEEPING PRESSURE FOR A LONG TIME

The utility model provides a new tyre air valve inside keeping pressure for a long time which is used for bicycles, carts, tricycle, the air valve has the following feature: the inner cavity 5 of the air valve is provided with a piston 3, of which the automatic movement can fill air and prevent the...

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Bibliographische Detailangaben
1. Verfasser:	YAO YANFU
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The utility model provides a new tyre air valve inside keeping pressure for a long time which is used for bicycles, carts, tricycle, the air valve has the following feature: the inner cavity 5 of the air valve is provided with a piston 3, of which the automatic movement can fill air and prevent the air leak, for no latex tube is needed, the problem of air leak for the breakage resulting from aged rubber can be solved. Thus there is no requirement to replace the air valve frequently just like the way to do it nowadays. It can be used conveniently and the pressure maintenance effect is quite good.