Device for the releasable connection of a line

摘要

A device for the releasable connection of a line (10), comprising a plastic pipe, in particular consisting of a semi-rigid plastic, having an externally smooth end for pressure medium exhibits a connection piece (1), bracing grippers (3), a sealing ring (2) between a shoulder (11) of the connection piece (1) and the bracing jaws (14) thereof, an actuating member (4) which can move axially relative to the connection piece (1), and a driving device (19, 20) of the actuating member (4), by means of which device the bracing grippers (3) can be pressed onto the sealing ring (2), and the connection between the plastic pipe (10) and the bracing claws (15), which can be pressed into the outer surface of said plastic pipe and belong to the bracing grippers (3), can be released by an axial displacement of the actuating member (4) relative to the connection piece (1). The end portion (9) over which the actuating member (4) engages and which belongs to the connection piece (1) is provided with an external thread which is in engagement with an internal thread of the actuating member (4). With reduction of the diameter of the outer cone (18) formed by them, the bracing jaws (14) can be introduced, by means of the driving device (19, 20), into the end portion (9) of the connection piece (1), towards the sealing ring (2), and can be pressed onto the sealing ring (2) by their end side (16) remote from the connecting ring (12). <IMAGE>