| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pipe coupling capable of increasing the flow of fluid without changing the size of a socket and easily assembling the socket. SOLUTION: A cylindrical valve pusher 4 retreated by being abutted on a valve element when connecting to a plug, a movable cylinder body 11 fitted slidably in front and rear directions between an outer periphery of the valve pusher 4 and a main cylinder body 2 and a spring 13 for energizing the movable cylinder body 11 in an advancing direction are provided within the main cylinder body 2 having a flow hole 3 on the inside. A rear end part of the valve pusher 4 is fixed to the main cylinder body 2. A projection 15 formed on a rear end inner periphery of the movable cylinder body 11 is locked on a projection 14 formed on a tip side outer periphery of a cylindrical part 5 of the valve pusher 4 to prevent falling and regulate an advancing position. A seal ring 16 for sealing the movable cylinder body 11 and the main cylinder body 2 is mounted on an outer periphery of the movable cylinder body 11.</p> |
