Exhaust control device

The utility model relates to the field of pipeline water delivery, in particular to an exhaust control device. An exhaust control device is used for exhausting gas in a valve body and comprises a valve head assembly and a diaphragm assembly, the valve head assembly is provided with a main valve port...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MA LIANG, LI WEICAO, ZHA CONGRUI, ZHONG YINGWU
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 the field of pipeline water delivery, in particular to an exhaust control device. An exhaust control device is used for exhausting gas in a valve body and comprises a valve head assembly and a diaphragm assembly, the valve head assembly is provided with a main valve port and a communicating hole, the communicating hole is communicated with the valve body, a containing cavity communicated with the main valve port is formed in the valve head assembly, and the diaphragm assembly is arranged in the containing cavity. The diaphragm assembly is arranged in the containing cavity, and the diaphragm assembly can elastically deform to open or close the main valve port. An elastic piece is arranged on the side, away from the main valve port, of the diaphragm assembly, one end of the elastic piece abuts against the diaphragm assembly, and the other end of the elastic piece abuts against the inner wall of the containing cavity. The diaphragm valve has the advantages that the elastic piece can