QUICK-RELEASE TOOL APPLIED TO VALVE SHAFT OF ELECTRIC BUTTERFLY VALVE AND COUPLING

Disclosed is a quick-release tool applied to a valve shaft of an electric butterfly valve and a coupling. The tool comprises a positioning member (1) for fixing a coupling (2) and a force applying screw (4) for separating the coupling (2) from a valve shaft (3). A positioning cavity (5) and a thread...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG, Lanqing, DING, Zhanfeng, GUO, Renlong, YANG, Baiyi, LI, Jie, YANG, Fuqiang, DONG, Peng
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed is a quick-release tool applied to a valve shaft of an electric butterfly valve and a coupling. The tool comprises a positioning member (1) for fixing a coupling (2) and a force applying screw (4) for separating the coupling (2) from a valve shaft (3). A positioning cavity (5) and a threaded hole (6) communicated with the positioning cavity (5) are provided on the positioning member (1). The side of the positioning cavity (5) away from the threaded hole (6) is provided with an opening. The positioning cavity (5) and the threaded hole (6) are coaxially provided. The force applying screw (4) is threadedly connected in the threaded hole (6) and can extend into the positioning cavity (5). The diameter of the force applying screw (4) is smaller than the hole diameter of a central hole of the coupling (2). At least one group of abutment members are mounted on a cavity wall of the positioning cavity (5), and each group of abutment members comprise two abutment screws (7) provided opposite to each other. Th