High air-tight seal valve

The utility model discloses a high air-tight seal valve which comprises a valve body, a valve seat is arranged in the valve body, a valve channel penetrating through the valve body is arranged in the middle of the valve seat, a valve element used for controlling opening and closing of the valve chan...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHU YONGCHANG, WU YIPENG, SHENG JIANSHE, SUN HUANBIN
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 discloses a high air-tight seal valve which comprises a valve body, a valve seat is arranged in the valve body, a valve channel penetrating through the valve body is arranged in the middle of the valve seat, a valve element used for controlling opening and closing of the valve channel is connected into the valve seat in a sliding mode, and a valve rod used for driving the valve element to move is connected to the top end of the valve element in a rotating mode. The top end of the valve rod penetrates through the valve seat and the valve body, third sealing rings are arranged at the upper end and the lower end of the valve element respectively, the stop valve further comprises an abutting assembly, the abutting assembly is used for driving the valve body to abut against the valve seat all the time, and the abutting assembly is located in the valve element. The situation that the third sealing ring cannot be tightly attached to the valve seat due to abrasion caused by long-time movement of the