| 摘要 |
A plug-in connection for high-pressure line connections has, on the one hand, a cylindrical receiving bore 3 and, on the other hand, a cylindrical portion 5 with a sealing ring 7, which can be plugged into the receiving bore 3 and is fixed by a split wire lock washer 8 clamped on the outside. In the locked position, the wire lock washer 8 is located partly in a circumferential groove 9 in the wall of the receiving bore 3 and partly in a circumferential groove 10 in the circumferential wall of the cylindrical portion 9. In order reliably to avoid unintentional loosening of the connection at high pressures, the wall 11, of the circumferential groove 10, adjacent to the free end 12 of the cylindrical portion 5 runs radially outwards from the inside, obliquely in the direction of the free end 12. As a result, in the event of a pressure acting on the free end 12 of the cylindrical portion 5, the wire lock washer 8 is pressed, via the oblique wall 11, radially outwards into the circumferential groove 9 of the receiving bore 3, the contact-pressure force increasing as the pressure increases. For pretensioning, a cup spring 14 is provided between the free end 12 of the cylindrical portion 5 and a shoulder 13 delimiting the receiving bore 3. <IMAGE>
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