| 摘要 |
The invention relates to a plug connection for pipe or tube lines, comprising a threaded body and comprising a union nut (12) which is screwed onto the threaded body (10) and which is designed to receive an inserted pipe section in a locking manner. A two-stage recess for receiving a securing ring is arranged in a union nut chamber that receives the securing ring (20) in order to fix the pipe section. The invention is characterized in that the union nut (12) that is screwed on the threaded body (10) is captively secured on the threaded body (10) by means of a resiliently expandable circlip (25) that is arranged between the threaded body (10) and the union nut (12), and the union nut (12) is rotatably arranged between an inserting position and a locking position for the securing ring (20) on the basis of the circlip (25) that engages into grooves (26, 27, 28) formed on the threaded body (10) and the union nut (12). |
