Connection system for lines, in particular for semi-rigid plastic lines

摘要

A coupling assembly for connecting a conduit or tube to a member, comprising a retaining ring adapted to be fixed in a bore in the said member, a plurality of gripping teeth formed as extensions of the retaining ring and arranged to grip a conduit or tube inserted into the ring, and an unlocking ring fitting between the retaining ring and the conduit or tube and operable, on being pushed from outside, to spread the gripping teeth and thereby release the tube or conduit. The assembly is particularly useful for coupling rigid or semi-rigid plastics tubes to components of hydraulic or pneumatic installations.