| 摘要 |
<p>The fitting (2) has a locking element radially movable with respect to a central axis (X-X) between released and locking positions in which a locking surface of the element is disengaged from and applied on an outer surface of a spigot end (6), respectively. A circumferential groove is arranged in a counter flange (10) that includes a counter-ramp to actuate an outer ramp inclined in a circumferential direction. The counter-ramp moves the element between the released and locking positions by acting on the ramp by rotating the flange around the axis with respect to the element.</p> |
