Patent ID: 8613473

Claim:
A plug-in connection for pipelines, the plug-in connection having a pre-assembly position and a final assembled position and comprising: a receiving part; a plug-in part which is connected to the pipeline and can be inserted in a joining direction into the receiving part; a sealing element for sealing between the receiving part and the plug-in part; a spring-elastic securing element which is initially fitted on the receiving part in a flexed prestressed state at the pre-assembly position and is constructed to secure the plug-in part to the receiving part in the final assembled position of the plug-in connection; the securing element in the pre-assembly position being fitted on the receiving part in said flexed prestressed state as a spring force storage device and can be released from said flexed prestressed state by the plug-in part to a state of decreased stress in the final assembled position of the plug-in connection in order to secure the plug-in part to the receiving part; the securing element being arranged on the receiving part such that it can be axially displaced in the joining direction by the plug-in part when moved in the joining direction in order to trigger the securing of the plug-in part to the receiving part; and a tappet being provided for displacing the securing element in said joining direction being fixedly attached to the plug-in part and when moved in the joining direction.