OPERATING ELEMENT OF MOLE DRAIN MACHINE Russian patent published in 2017 - IPC A01B13/00 E02B11/02 

FIELD: construction.

SUBSTANCE: operating element of the mole drain machine includes a vertical knife 1 with two L-shaped wings 2 and drainers 4 attached to the L-shaped wings 2 of a vertical knife 1 by means of ribs 2 located behind and bent upward, parallel to it, and a line connection. The drainers 4 in the cross section are formed as a Reuleaux triangle. One of the corners of Reuleaux triangle in the sections of drainers 4 is oriented vertically upwards and the line connection between wings 2 of the knife 1 and drainers 4 is implemented in the form of rigid connecting rods.

EFFECT: increased stability of the dome and walls of mole drains.

2 dwg