DEVICE FOR TRENCHLESS REPLACEMENT OF PIPELINES Russian patent published in 2012 - IPC F16L1/28 E02F5/18 

FIELD: construction.

SUBSTANCE: in a device for trenchless replacement of pipelines a vessel of a facility to redistribute static force is arranged as cylindrical, in which at the equidistant distance from each other there are at least two radial slots with spacer plates installed in them, having a bevel and made of a friction material. In the vessel via an axis of its symmetry there is a conical hole, in which with a clearance there is a spacer element made in the form of a cone. The bevel angle of the spacer plates, the angle between the axis of symmetry of the spacer element and its generatrix, and also the angle between the axis of symmetry of the conical hole and its generatrix are equal to each other. Spacer plates are installed with the possibility of vertical displacement relative to the spacer element. The vessel of the facility to redistribute a static force is connected with two dismantling ropes.

EFFECT: device reliability improvement.

4 dwg