SUPPORTING AND REINFORCING ELEMENT, FLAT METAL SHEET FOR ITS MANUFACTURE AND DRAINAGE SYSTEM Russian patent published in 2021 - IPC E03F5/04 E01C11/22 E04B1/24 

FIELD: mechanical engineering.

SUBSTANCE: group of inventions relates to the field of supporting and reinforcing devices for a box-shaped tray for a linear drainage system. The supporting and reinforcing element contains a bottom part (10) and two side parts (11), which form a U-shaped profile (13) to accommodate the box-shaped tray. The bottom part (10) is made as a support for the bottom of the box-shaped tray. The bottom part (10) and the side parts (11) form, respectively, L-shaped bent sheet-rolled profiles (14). Each side part (11) has a first docking edge (29) with a profile protrusion. The bottom part (10) has two second docking edges (30), each of which has a counter profile notch. Profile projections and profile recesses engage with each other. A flat metal sheet is intended for the manufacture of the above-described supporting and reinforcing element. A flat metal sheet has a longitudinal axis and a transverse axis perpendicular to it, which is shorter than the longitudinal axis. A flat metal sheet contains at least one longitudinal line (26) of the fold to form L-shaped sheet-rolled profiles (14) for the bottom part (10) and side parts (11), which extends along the longitudinal axis, transverse lines (27) of the fold to form a U-shaped profile (13), which extend along the transverse axis, docking recesses that are adjacent to the transverse lines (27) of the fold. Each of the docking recesses has two docking edges (29, 30), which, when bent, form a transition from the bottom part (10) to the corresponding side part (11). The first docking edge (29) has a profile protrusion, and the second docking edge (30) has a counter profile recess. In the bent state, the profile protrusion and the profile recess engage with each other. The drainage system contains at least one box-shaped tray for a linear drainage system and at least one supporting and reinforcing element described above.

EFFECT: improved supporting and reinforcing element is provided in terms of weight, which makes it possible for it to be well anchored in the base, for example, in a concrete base.

14 cl, 5 dwg