| 摘要 |
The seal has an elastically deformable ring allowing insertion of cylindrical cable and stretching into conical seal. The device comprises a base shape of revolution (2) formed about a central axis (A) with a wall (3) which is transverse to this axis. The wall comprises a tubular sleeve and a flat ring (5). The sleeve has an internal surface which is smooth and cylindrical with an annular sealing ring (11) projecting inwards, and two external flat surfaces (16,17) lying transverse to the direction of the central axis. Within the device there is a crenellated section surrounding an annular seal (71). This section lies flat overall in its rest position, but is intended to be deformed into a truncated conical section when a cylindrical body is introduced through the center of the device. When fitting the cable into the device, it is first pulled through in one direction forming a conical section within the seal, and then when it reaches the required position it is pulled back, in order to reverse the direction of the conical section. |
