| 摘要 |
<p>A fluid coupling, for a conduit, which features a quick connect-disconnect construction between first and second coupling members. The first coupling member (12) is connected to the conduit and is generally cylindrical, having a main portion (15) and a reduced diameter portion (16). Peripheral grooves (24, 25) on the reduced portion (16) contain sealing rings (41, 42, 43) which form a fluid-tight seal with a second coupling member (13) that fits over the first member, the sealing rings (41, 42, 43) contacting an internal bore (29). The principal seal (41) is provided by a resilient O-ring which is located in the groove (24) located at the intersection of a wall (22) that intersects the reduced diameter portion (16) of the first coupling member (12). This contacts a shoulder (36) formed on a wall (35) which intersects part of the bore (29) of the second coupling member (13). This provides both axial and radial compression between the coupling members. The second peripheral groove (25) is spaced from the first groove (24) and contains another O-ring (42) as well as a fluoroelastomeric backup ring (43) to enhance the seal. The two coupling members (12, 13) are interfitted and locked together by means of a U-shaped retaining pin (14) that has legs (44, 45) inserted into opposing peripheral grooves (18, 38) on the main body portion (15) of the first coupling member (12) and the base of the second member (13).</p> |
