Detachable quick-fitting pipe union for receiving a plug-in tubular part

摘要

The detachable quick-mounting coupling device serves to receive the tubular plug connecting member 3 provided with the annular retaining rib 4. Such a quick-mounting coupling device has a retaining edge which is elastically restorable for engagement with the cylindrical receiving housing 1 for insertion of the plug connection member 3 and the retaining rib 4 after indentation of the plug connection member 3. It consists of a separate retaining spring 2 provided with 17. The retaining edge 17 is formed in the support 13 which protrudes outward, and the support 13 has a corresponding cutout of the housing wall 5 so as to axially fix the retaining spring 2 in the embedded state. 12) It is put inside. The end face 21 of the support 13 is inclined with respect to the vertical plane in the direction of insertion towards the outside in the region of contact with the inner edge 22 to increase the holding force in the housing 1. In order to limit the spreading of the housing wall 5 resulting in the region of the opening thereby, the inclined end face 21 is provided with stopper faces 23, 24 protruding radially from the outside of the contact zone, the stopper of which is a stopper. Faces 23 and 24 prevent the front housing wall 5 from further spreading when a strong tensile force is generated.