Patent ID: 7434846

Claim:
A quick coupling comprising a sleeve-shaped coupling body having a longitudinal axis x and a receiving opening to receive one end of a pipe, a retaining element to hold the end of the pipe in the coupling body, a sealing element to seal the pipe against the coupling body and a securing element to secure the connection between the pipe and the coupling body, locking ribs adjacent to the receiving opening on an external surface and an internal surface of the coupling body, the ribs extend inwards and outwards in a radial direction with respect to the longitudinal axis x and interact with the securing element for the purpose of securing a connection between the pipe and the coupling body, the securing element is in the form of a profile having free ends which define a gap of the securing element for receiving a wall of the coupling body in the area of the receiving opening, and locking projections facing radially inwards and outwards are formed on the free ends of the securing element to interact with the locking ribs of the coupling body, wherein the retaining element comprises a ring with teeth facing inwards at an angle with respect to axis x from a ring flange which is perpendicular to the axis x.