Double-valve-element hard sealing one-way valve

The invention belongs to the field of one-way valves, and particularly discloses a double-valve-element hard sealing one-way valve, a shell is provided with an inlet and an outlet, a first valve element is arranged in the shell in a sliding mode, a first elastic piece is arranged between the first v...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JIA JINGWEI, HE WEITAO, WU GUANYING, ZHAO XUANHONG
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 invention belongs to the field of one-way valves, and particularly discloses a double-valve-element hard sealing one-way valve, a shell is provided with an inlet and an outlet, a first valve element is arranged in the shell in a sliding mode, a first elastic piece is arranged between the first valve element and the shell, the first valve element is provided with a flow channel, and a second elastic piece is arranged between the first valve element and the shell. The first valve element compresses the first elastic piece so that the flow channel can communicate with the inlet and the outlet. A mounting groove is formed in the end, close to the inlet, of the first valve element, a second valve element is arranged in the mounting groove and located in the inlet, a second elastic piece is arranged between the second valve element and the first valve element, and the elastic force of the second elastic piece is smaller than that of the first elastic piece; double guarantee can be achieved through the first val