Patent ID: 8662101

Claim:
A device for inserting a shut-off device in a pipeline, characterized in that the device comprises a tubular housing ( 1 ) and a shut-off device ( 6 ) disposed in the tubular housing, and that the external diameter of the housing ( 1 ) in a front cylindrical region ( 3 ) looked at from the direction of insertion is smaller than the internal diameter of the pipeline ( 2 ), and that an offset region ( 10 ) conically tapering towards the direction of insertion is adjacent to the front cylindrical region ( 3 ), with said offset region bounded by a stop collar ( 12 ) on which a connecting contour ( 7 ) for a coupling piece ( 20 ) of a drive element ( 19 ) is connected, wherein a sliding piece ( 13 ) made of an expandable material, whose external diameter when lying against the stop collar ( 12 ) is smaller than the internal diameter of the pipeline ( 2 ), and which comprises a circumferential groove in which a spring-loaded clamping ring ( 15 ) is supported, is displaceably disposed in the axial direction on the offset region ( 10 ).