| 摘要 |
This device includes a support (14) provided with a semicylindrical seat (15) intended to receive a connection piece segment (12). This segment (12) has a semicircular collar (170) inclined with respect to the axis of the connection piece and intended to penetrate into a groove (16) having the same inclination as the collar (17) with respect to the axis of the semicylindrical seat 15. As a result, when a traction force is exerted by the pump on the portion of the connection piece, and the collar (17) engages the groove (16), this force tends to press the segment (12) against the seat (15) and cause self-locking of the assembly.
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