| 摘要 |
A quick coupling for a connection including pressure and return pipes, consisting of male and female parts (1, 2), each with an outer sleeve (3; 33) and an inner sleeve (4; 34) axially movable in relation thereto, wherein the forward openings (24; 49) of the inner sleeves (4; 34) are closable by axially movable centrally located valve members (18; 50). According to the invention the male and female parts (1, 2) are provided with rear support bodies (11; 42) each to carry said valve members, and the male and female parts are provided with two fluid channels (15, 17; 46, 48) each of which forms part of said pressure and return pipes. The fluid channels (15, 17; 46, 48) in each pair are arranged to be placed in communication with each other via an aperture (25; 61) which is openable by means of a valve member (26; 62) that can be influenced manually from outside the outer sleeve (3; 33). |
