Patent ID: 8821185

Claim:
A connecting arrangement, comprising: a connecting piece; a plug connector having, radially on an outside, a ring-shaped region; a locking device for the connecting arrangement, the connecting arrangement being between the connecting piece and the plug connector, wherein the locking device is configured to radially clip onto the connecting piece, and wherein the locking device comprises at least one latching hook configured to axially overlap and latch onto the ring-shaped region of the plug connector when the locking device is clipped onto the connection piece, wherein the connecting piece has, radially on an outside, at least a first undercut region extending in a circumferential direction, the plug connector has, radially on an inside, at least a second undercut region adapted to correspond with the at least one first undercut region of the connecting piece in an engagement position, the second undercut region being elastically deformable in a radial direction to allow the first and second undercut regions to be engaged or disengaged, the locking device being operatively configured to prevent the plug connector from deforming elastically in a radial direction at least to an extent such that in a connecting position the first undercut region and the second undercut region are fixed in a corresponding engagement position.