DRAINAGE CANAL ELEMENT Russian patent published in 2016 - IPC E01C11/22 

FIELD: construction.

SUBSTANCE: drainage canal element comprises a gutter 1, in the cross section having a rectangular profile 2 of outer surface and a U-shaped profile 3 of inner surface, together forming longitudinal side boards 4 in the upper part of the gutter. In the upper part of the gutter 1 on its side boards 4 there are attachments 7. A sewer grate 9 rests upon support horizontal surfaces of attachments 7. The attachment 7 and the sewer grate 9 may be made of cast iron or elastic composite material, for instance, plastic or glass plastic of higher strength. Each attachment 7 is equipped with two eyes 12 placed perpendicularly to the axis of the gutter 1, the axis of the hole 13 of which is parallel to the axis of the gutter 1. Sewer grates 9 are equipped with two pairs of elastic support rods 14 arranged transversely to the axis of the gutter. The first elastic rod 14₁ in each pair is fixed in a cantilever manner on the free end of the second elastic rod 14₂, which is in a cantilever manner fixed, in its turn, on one of side longitudinal sides of the grate 9. On both ends of the outer side of the first elastic rod 14₁ there are ledges 15 made for appropriate holes 13 in eyes 12 of attachments 7 from both sides of the gutter 1. The ledge 15₂, placed on the outer surface of free ends of the first elastic levers 14₁, is made in the form of a rectangular latch with a bevelled face 16. On the second ends of the first elastic levers 14₁ the ledges 15 are made in the form of a hinged joint 15₁ with the surface in the form of a circular cylinder with a bevel 17.

EFFECT: drainage canal element design makes it possible to simply and quickly fix a sewer grate in a concrete gutter without damaging impact at its side walls during formation of a drainage canal, and also in process of its service.

7 cl, 28 dwg