Gate valve

A gate valve comprises a valve body and a valve element, the valve body comprises a pipeline, a door-frame-shaped gate plate frame arranged on the pipeline and a guide groove formed in the inner side of the door-frame-shaped gate plate frame, the guide groove comprises an upper groove wall and a low...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DU KAIJUN, YANG LIQUN
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:	A gate valve comprises a valve body and a valve element, the valve body comprises a pipeline, a door-frame-shaped gate plate frame arranged on the pipeline and a guide groove formed in the inner side of the door-frame-shaped gate plate frame, the guide groove comprises an upper groove wall and a lower groove wall, the valve element is a plate-shaped object, the upper groove wall comprises a pair of upper straight groove walls and a bent groove wall connected with the pair of upper straight groove walls, and the lower groove wall comprises a pair of lower straight groove walls. The lower groove wall comprises a pair of lower straight groove walls, a groove is formed between the lower straight groove walls and the upper straight groove walls, the width of the lower straight groove walls is smaller than that of the upper straight groove walls, and the valve element inserted into the guide groove moves left and right along the groove. Compared with the prior art, the valve core plate has the advantage that the va