| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize reliability of opening and closing of an inner passage and holding and releasing of restriction to be performed with opening and closing of the passage, and easiness of the operation by incorporating and constituting a valve shut off mechanism part, a restricting mechanism part and a releasing mechanism part. SOLUTION: A valve shut off mechanism part E including a purge out part F for opening and closing a valve opening and closing part B from the outside after restricting the plug-in connection of a male-type coupling member 101 by a plug-in connection restricting mechanism part D and for purging remaining pressure in the specified direction in valve closing, and a valve opening restriction releasing part G for holding the restriction of the valve opening state by the valve shut off mechanism part E and releasing holding of the restriction are provided. A releasing mechanism part H is incorporated for releasing holding of the restriction of the male-type coupling member 101 by the plug-in connection restricting mechanism part D and enabling the plug-out separation after holding the restriction of the closing state of the valve shut off mechanism part E. Accordingly easiness of respective operations can be realized.</p> |
