Patent ID: 6773039
Filing Date: 2004-08-10
Classification: F16L

Abstract:
A plug-in coupling comprising a base body, a sealing ring, a locking ring, and an annular body which can be connected with the base body, in which a pipe end can be locked into position by the locking ring, wherein the pipe end can be inserted into an axial annular gap between the base body and the annular body, the sealing ring fits tightly against the interior surface of the pipe end, and the annular gap accommodates the locking ring, which fits under initial stress against a locking surface of the annular body and against the exterior surface of the inserted pipe end,wherein the locking ring has at least one additional clamping element which lies against an interior surface of the annular body, and wherein the clamping element is arranged in the area of an axial end face of the locking ring.