COUPLING TO JOIN DRAINAGE PIPES Russian patent published in 2013 - IPC E02B11/00 

FIELD: construction.

SUBSTANCE: coupling comprises a body of a recycled tyre with perforation on an outer surface, elements covering joined pipes, and an element of pipe fixation in a unit of connection. Two extreme recycled tyres of identical dimension type that cover joined drainage pipes are rigidly axisymmetrically connected to the tyre body at the ends. A tyre body is used as an element of pipe fixation. The diametre of the inner hole of the tyre body is smaller than the outer diametre of drainage pipes, but not less than the diametre of clear opening of drainage pipes. The diametre of the inner hole of extreme tyres is equal to the outer diametre of drainage pipes, and the outer diametre of extreme tyres exceeds the outer diametre of the tyre body.

EFFECT: simplified connection of drainage pipes, increased reliability of connection in case of mechanised laying and when laying a drainage line into structurally unstable soils.

1 dwg