Patent ID: 7631906

Claim:
A removable plug-in connection for high-pressure lines comprising a cylindrical receiving housing ( 1 ) with a central receiving chamber ( 2 ) for insertion of a tubular plug-in part ( 3 ), which is equipped with a peripheral retaining rib ( 4 ), and an enlarged receiving chamber ( 2 ′) on the insertion side in which several radially guided locking elements ( 5 ) can be retained, said elements being clamped in a direction of the interior by a retaining ring ( 14 ), whereby the locking elements ( 5 ) have inwardly pointing retainer wedges ( 18 ) with retaining surfaces ( 19 ) which engage behind the retaining rib ( 4 ) in a positive fit once the plug-in part ( 3 ) has been inserted, the locking elements ( 5 ) include two half-shells ( 8 ) that are held together by the retaining ring ( 14 ), whereby each half-shell ( 8 ) has a projecting centering pin ( 11 ) on one end face ( 9 ), said pin forming an extension of an internal wall ( 10 ) and engaging in a corresponding cavity ( 12 ) on the opposing end face when the two half-shells ( 8 ) are assembled, wherein once the half-shells ( 8 ) have been installed, the front edge ( 16 ) of the wall ( 15 ) on the insertion side of the housing ( 1 ) that surrounds the enlarged receiving chamber ( 2 ′) is bent inwards at an oblique angle to the axis of the receiving housing ( 1 ) such that the retaining rib ( 4 ) can pass through unhindered and the half-shells ( 8 ) are outwardly displaced when the plug-in part ( 3 ) is inserted.