| 摘要 |
<p>PURPOSE: To surely carry out locking retention and to facilitate operation by providing a locking-releasing mechanism unit provided with a locking ring means, by which a connection condition is locked and maintained by engaging an engaging locking piece with an opening ring means in a valve opening position, and a releasing ring means, by which locking retention by means of each engaging locking piece in the locking ring means is released. CONSTITUTION: In a non-connection valve opening condition by means of a pressing spring 51 in an opening/closing valve mechanism unit B, a valve of an opening/closing valve equivalent part 44 is opened by means of plug-in connection in a male type joint member 151 opposed to a female type joint member 41. A connection valve condition is engagingly maintained by means of an operation cam part 71 and a pressing spring 81, which are arranged in an opening ring 61 in the joint mechanism unit C, and this condition is locked by means of a locking ring 91 in a locking-releasing mechanism unit D. A lock of the opening ring 61 is released by operating a releasing ring 101 in the locking-releasing mechanism unit D while the connection valve opening condition is locked by means of the pressing spring 81 in the joint mechanism unit C, and the opening ring 61 is operated in an opened condition, so that the male type joint member 151 is plugged out so as to be released.</p> |
