Hand-operated control valve

The utility model relates to a hand-operated control valve which belongs to a hydraulic drive control component. A valve body is provided with a drive mechanism connected with a controlled liquid path. The other end of the drive mechanism acts on an operating mechanism of the control valve, the acti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YONGSHUN TIAN, XIUZHONG XU, WENSHU WEI
Format:	Patent
Sprache:	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 a hand-operated control valve which belongs to a hydraulic drive control component. A valve body is provided with a drive mechanism connected with a controlled liquid path. The other end of the drive mechanism acts on an operating mechanism of the control valve, the acting direction is a direction in which the operating position of the control valve is maintained and the acting force is larger than the force which is transmitted from the controlled liquid path and is used for changing the operating position of the control valve. A blocking mechanism can maintain the operating position of the control valve and can be deactivated by reverse operation force. Under the condition, a problem that the control valve operated by hands can not work normally can be easily solved.