Patent ID: 6095569
Filing Date: 2000-08-01
Classification: F16L,Y10S

Abstract:
A plug-in coupling for pressure application systems, comprising two coupling components, including a housing component and a connector component, said connector component being sealingly insertable into a locating opening of said housing component, and being arrestable against loosening by a locking device, said locking device having an elastically deformable holding element, which is located on the side of one coupling component such that, in the inserted state, it engages behind an arresting step of the other coupling component, locking with positive fit, for arresting said connector component, characterized by, that the holding element is designed ring-shaped and comprises of several individual annular segments and one concentric spring lock washer component which presses said annular segments with radially operating spring resistance, that each annular segment can move radially against the spring resistance of said spring lock washer component during the plugging-in of the connector component into the housing component, and wherein a blocking means for automatic fixed holding of said holding element in its arrested position engages behind said arresting step in case of an impingement of said connector component with an axial force operating in the release direction arising from mechanical pull or internal pressurization.