One-way self-locking valve hand wheel

The utility model discloses a one-way self-locking valve hand wheel which comprises a hand wheel body, and the hand wheel body is of an existing valve hand wheel structure. A rotating rod is rotationally arranged in the device shell, one end of the rotating rod penetrates through the device shell an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	QIAN LEI, GAO JING, LIANG MINGHE, YU LEI, ZHANG YAXI, GUAN XINHE, LIU XIANHANG
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 one-way self-locking valve hand wheel which comprises a hand wheel body, and the hand wheel body is of an existing valve hand wheel structure. A rotating rod is rotationally arranged in the device shell, one end of the rotating rod penetrates through the device shell and is coaxially and fixedly connected with the hand wheel, and the other end of the rotating rod penetrates through the device shell and is coaxially and fixedly provided with a connecting key; a limiting gear fixedly arranged on the rotating rod in a sleeving mode is arranged in the device shell, two limiting pieces for conducting one-way limiting on the rotating rod are symmetrically arranged in the device shell, each limiting piece comprises an abutting rod obliquely arranged in the device shell, and the sides, deviating from each other, of the two abutting rods are each provided with a limiting spring for limiting the two abutting rods; the device shell is provided with a control piece for controlling the positi