Gas safety shut-off valve

The invention relates to the technical field of gas valves, and provides a gas safety shut-off valve which is characterized in that a valve body is provided with a containing cavity, a gas inlet channel and a gas outlet channel, the stop valve element assembly is arranged in the containing cavity. T...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CUI YANLI, LI JUN, FU QIYUN, ZHANG BIN, WU HONGYU, WU BIN, XIAO NING, BAI QINGFENG, WEI CHANGFU
Format:	Patent
Sprache:	chi ; 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 JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to the technical field of gas valves, and provides a gas safety shut-off valve which is characterized in that a valve body is provided with a containing cavity, a gas inlet channel and a gas outlet channel, the stop valve element assembly is arranged in the containing cavity. The valve plug is movably arranged in the air inlet channel through the connecting rod set, a sealing protruding shoulder is arranged in the air inlet channel, and the valve plug abuts against the sealing protruding shoulder so that the air inlet channel and the containing cavity can be divided into two independent cavities. The air inlet bypass channel is selectively communicated with the auxiliary reset channel according to the pressure of the air inlet channel, the auxiliary reset channel is provided with a first outlet and a second outlet, and the first outlet is communicated with the containing cavity; the valve body is provided with a reset cavity, the second outlet communicates with the reset cavity, the ejec