| 摘要 |
The invention relates to a system (10) for rapid attachment in the interior of a conduit, in which the operator uses only one hand, comprising: a unit (17) that is coupled to a tool (20); a shaft (11) that passes through said unit; a set of arms (12) pivotably connected by anchors (13, 13') to the unit (17) and to the shaft (11); a spring (15) positioned therebetween that expands the arms radially; and additional attachment means (16) that further expand said arms. The tool (20) has a radial arm (21) that is coupled to the attachment system (10) and means for scraping (25) and transverse cutting (26) that are selectively coupled to a screw conveyor (23) located in a axial arm (29) rotating around the end of the conduit, in order to obtain stable, uniform scraping and cutting, with minimal use of space. |
