Time delay valve element with normally-open function

The utility model discloses a time delay valve element with the normally-open function. The time delay valve element comprises a fixing part, a mandrel assembly, a lifting block and an adjusting shaft assembly. The mandrel assembly is matched with the low position of the lifting block when located a...

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Bibliographische Detailangaben
Hauptverfasser:	ZHONG LU, WU YUZHI, WU DUANHONG, ZHOU HUASONG
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 time delay valve element with the normally-open function. The time delay valve element comprises a fixing part, a mandrel assembly, a lifting block and an adjusting shaft assembly. The mandrel assembly is matched with the low position of the lifting block when located at the normally-closed position, and the mandrel assembly is matched with the high position of the lifting block when located at the normally-open position. The adjusting shaft assembly slides between the sealing position where a water flow hole is sealed to make a water inlet and a water outlet be not communicated and the communication position where the water flow hole is opened to make the water inlet and the water outlet be communicated. The adjusting shaft assembly is located at the sealing position when the mandrel assembly is located at the normally-closed position, and the adjusting shaft assembly is located at the communication position when the mandrel assembly is located at the normally-open position or t