COUPLING FOR CONNECTION OF PIPES OF DRAIN COLLECTION LINE Russian patent published in 2013 - IPC E02B11/00 

FIELD: construction.

SUBSTANCE: coupling comprises a body perforated along an outer surface from an elastic recycled tyre fixed inside two pipes in their butt joint. The tyre body at the end sides is axisymmetrically rigidly fixed with extreme recycled tyres, the outer diametre of which is less than the outer diametre of the tyre. To provide for fixation of the coupling inside pipes in their butt joint a tyre body is used, the outer diametre of which exceeds the diametre of the clear opening of connected pipes. The diametre of the inner hole of the tyre body is smaller than the outer diametre of extreme tyres, which is equal to the diametre of clear opening of joined pipes.

EFFECT: increased reliability of pipes joining, simplified design of joined pipes and provides for the possibility of mechanised laying of pipes of a drain collection line.

1 dwg