Inlet for ringed conduit, has elastically flexible pieces radially spaced, when axial force is applied on pieces under pressure of ringed conduit and including lip that is resistant to tearing off of conduit by being supported on ring

摘要

The inlet has a projection including elastically flexible slanting pieces (3) forming an axially converging assembly by being elongated from a plane wall (2). The pieces have a proximal end connected to the wall along bases (5). Distal ends of the pieces form an opening placed outside the wall and have smaller dimensions than a hole of the wall. The pieces are radially spaced, when an axial force is applied on the pieces under the pressure of a ringed conduit (12) introduced in the inlet. The pieces have a lip (6) that is resistant to tearing off of the conduit by being supported on a ring.