To provide a pipe joint device with an opening and closing valve device for shutting off a passage, adapted to perform the constraint releasing operation by an external releasing member for plug-out separation of a male joint member from a pipe joint body only by the work of human hands.
In the valve closing state, each anchor hard ball 29 held in non-working position by a female opening and closing member 51 is released by plug-in connecting operation of the male joint member 70 to the pipe joint body 10, and the opening and closing valve member 41 is opened by an opening and closing operating part 72 to put a primary side internal passage A and a secondary side internal passage N in the conduction state. In the valve closing state, each anchor hard ball 29 is reserved in an anchoring working position by the anchoring engagement by an opening and closing valve side upper surface 76a in an anchoring peripheral groove 76 of the male joint member 70 and the constraint holding of the external releasing member 61 by an inner surface constraint peripheral groove 67, thereby anchoring holding the male joint member 70 in the valve opening operation and restraining the operation of the external release member 61, so that the single operation of the external releasing member 61 is disabled.
ISHII HIDESABURO
ISHII HIDETOSHI
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