High-pressure safe and rapid shut-off valve

The utility model relates to a high-pressure safe and rapid shut-off valve. The shut-off valve comprises a main valve which comprises a valve body, a bonnet arranged at one end of the valve body, a valve seat inlaid in the middle of the inner cavity of the valve body, a valve clack in compression fi...

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Bibliographische Detailangaben
Hauptverfasser:	LI BENLIN, LUO KAI, WU WUTAO, JIANG MUAN, ZHANG YOUCAI
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 LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a high-pressure safe and rapid shut-off valve. The shut-off valve comprises a main valve which comprises a valve body, a bonnet arranged at one end of the valve body, a valve seat inlaid in the middle of the inner cavity of the valve body, a valve clack in compression fit with the valve seat and an air control unit. A valve rod is connected with the end of the valve clack, a first reset spring is arranged in the inner cavity of the valve clack, and an end cover is snapped on the outside of the valve clack. The air control unit comprises an air cylinder barrel, an air cylinder cover is arranged at one end of the air cylinder barrel, and a partition plate is arranged at the other end of the air cylinder barrel. An air cylinder piston is arranged in the air cylinder barrel, a second reset spring is arranged between the air cylinder piston and the partition plate. A piston rod is arranged in the air cylinder barrel, one end of the piston rod is fixedly connected with the air cylinder