Document Type and Number:
Japanese Patent JPH0425594
Kind Code:
Y2
Abstract:
A double-pipe pipe coupling comprises a socket provided with a socket main cylinder having a front end portion on which taper holes are formed, locking balls housed in the taper holes and a sleeve on the outer periphery of the front end portion of the socket main cylinder. The plug is provided with a plug main cylinder on which an annular groove is formed. The socket has a cylindrical slide ring and a collar cylinder arranged coaxial to each other, and first and second passages and defined by the side ring and the collar cylinder. The slide ring includes a stopper for stopping the sliding of the slide ring in the axial direction of the socket main cylinder at a certain position and locking the movement of the sleeve when the slide ring advances and a valve member serving to seal the front end of the plug when the plug is connected into the socket. The plug includes a plug main cylinder, a partition wall formed integral with the plug main cylinder and located inside the plug main cylinder and at a position which corresponds to the collar cylinder of the socket, and first and second passages and which are partitioned by the partition wall. First and second slide valves are arranged in the first and the second passage.
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Application Number:
JP9099889U
Publication Date:
June 18, 1992
Filing Date:
August 03, 1989
Export Citation:
International Classes:
F16L39/04; F16L37/23; F16L37/34; F16L37/56; (IPC1-7): F16L39/04
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