Patent ID: 6231084
Filing Date: 2001-05-15
Classification: F16L,Y10S

Abstract:
A plug-in coupling for systems involving pressurized media, where the coupling comprises two coupling parts including a housing part (2) and a connector part (4), where the connector part (4) is inserted into a receiving opening (8) of the housing part (2), while it is being sealed, and when it is in a plugged-in position, it is locked in place and prevented from being released by means of a locking device (10), and where the locking device (10) includes a retaining element (12), which is supported by of one of the coupling parts, and which retaining element engages a retaining groove (16) of the other coupling part by means of a form-fit and where a release device (32) is provided in such a manner, that the retaining element (12) is brought into a release position by means of a further insertion of the connector part (4), in which position the retaining groove (16) is released and the connector part (4) is removable from the receiving opening (8), the release device (32) is equipped with a sleeve-type locking bar (40) on the one of the coupling part which contains the retaining groove (16), wherein an inclined surface defines one side of the retaining groove, where the sleeve type locking bar is actuated by movement of the connector part (4) and which is to be used in conjunction with the retaining groove (16) in such a manner, that the retaining element (12) is moved up the inclined surface and, when it is in the release position, is brought into radial contact with a circumferential area (42) of the locking bar (40) and is thus held in the release position, and when the movement to remove the plug-in connector takes place, the locking bar (40) is moved into the region of the retaining groove (16) in such a manner, that a radial engagement of the retaining element (12, 12a, 12b) of the retaining groove (16) is prevented.