Combined-type spherical surface valve

The utility model relates to combined-type spherical surface valve. The combined-type spherical surface valve is provided with a valve seat and a valve plate, wherein the middle through hole of the valve seat is cut-through, and the valve plate is located at the top end opening of the middle through...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG YUTUAN, WANG BIEHAO, TANG CHUNLING, ZHENG HONGQIAN, LI CHUNFANG
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 combined-type spherical surface valve. The combined-type spherical surface valve is provided with a valve seat and a valve plate, wherein the middle through hole of the valve seat is cut-through, and the valve plate is located at the top end opening of the middle through hole of the valve seat. The combined-type spherical surface valve is characterized in that the top of the middle through hole of the valve seat is a spherical surface, the bottom of the valve plate is provided with a spherical surface, and the top spherical surface of the middle through hole of the valve seat and the spherical surface of the valve plate form dynamic spherical sealing surfaces; and a valve spring is arranged on the upper part of the valve plate, the upper part of the valve spring is fixed on a valve cover, and a wave-shaped spring is arranged between the valve cover and the valve seat. The sealing surfaces of the valve seat and the valve plate in the combined-type spherical surface valve disclosed