Patent ID: 6027143
Filing Date: 2000-02-22
Classification: F16L,Y10S

Abstract:
Plug connection for pressure systems, comprising coupling parts including a receptacle part (2) having a receptacle opening (8) and a plug part (4) having a plug shaft, wherein the plug part (4) can be inserted into the receptacle opening (8) such that the plug shaft engages a circumferential seal and is blocked from being released by means of a locking device (12) configured to couple with the receptacle part at a partially plugged prelocking position and at an entirely plugged prelocking position, wherein the prelocking position produces an incomplete seal such that an acoustically perceivable leakage noise is generated if the connection is charged with a pressure medium, and wherein the receptacle part and the plug part operatively interact with the seal to produce a completely pressure-tight seal in the full locking position, and wherein one coupling part has a recess (22) and the locking device (12) comprises a holding element (20) that is situated in the recess (22), the other coupling part has one locking edge (24) behind which the holding element (20) engages, and the holding element (20) respectively cooperates with said one locking edge (24) in the prelocking position as well as in the full locking position;the holding element (20) comprising a carrier element (26) that is situated in the recess (22) of one coupling part (2), and two locking elements (28,30) that are held axially behind one another in the carrier element (26) and are elastically deformable such that the first locking element (28) engages behind the locking edge (24) of the other coupling part (4) in the prelocking position and the second locking element (30) engages behind said locking element in the full locking position; andthe carrier element (26) is realized in the form of an annular body with two slot-like receptacle spaces (32) for the locking elements (28, 30).