Patent ID: 7770940

Claim:
Coupling part for a plug connector arrangement, comprising: a coupling body comprising a receptacle which a plug-in part of the plug connector arrangement can be plugged into in a direction of a longitudinal axis of the receptacle in order to produce a fluid-tight connection, two spaced-apart locking elements which, in a locking position, penetrate laterally, opposite one another, into the receptacle in order to engage with the plug-in part and which can be moved into a release position in order to release the plug-in part, a spring element integrally formed with and connecting the locking elements together, and an actuating element enclosing the coupling body in a circumferential direction and which is adapted to be moved relative to the coupling body, wherein longitudinal movement of the actuating element causes the locking elements to be moved counter to a resilient restoring force from a locking position into the release position in which the locking elements are spaced apart from one another to a greater extent than in the locking position.