DRAINAGE SYSTEM Russian patent published in 2017 - IPC E02B11/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the reclamation and can be used both for irrigation and drainage of agricultural lands. The drainage system comprises drains 1, a manifold 2 which mouth comprises a container 3 of the well 4. The well 4 is provided with upwardly extending pipe 7 which ends with an input funnel 8. The float-cowl 19 is equipped inside with an aeration nozzle 20 located coaxially with the opening of the input funnel 8 and mounted at the beginning of the extending part of the vertical pipe 7. The lower external part of the funnel 8 is fixed rigidly to the housings of the cups 9 and 10 with the clutch springs 11 and 12 placed in them. The float-cowl 19 is made conoid-shaped, and the aeration nozzle 20 is made a confusor-shaped. The lids of the cups 9 and 10 in their center have guiding tubes 13 and 14 through which the racks 15 and 16 with the clutch springs 11 and 12 are passed freely. The racks 15 and 16 are made in the form of adjusting screws the lower free ends of which are provided with nuts 17 and 18 from the side of bottoms inside the cups 9 and 10 and are connected to the clutch springs 11 and 12. The upper ends of the racks 15 and 16 are rigidly fixed to the lower part of the float-cowl 19. In the upper part the aeration nozzle 20 is provided with a crosspiece 25 with a rod 24 and a counterweight 22. The rod 24 is connected to the lever 27 with the hinge 26 and is connected to the rod 29 through the hinge 28, with a hinged gate 30 overlapping the mouth of the manifold 2. The tapering part of the vertical pipe 7 is connected to the outlet pipe 5 through the knee 6. The position 21 denotes an adjustable limiter of the float-cowl 19 movement.

EFFECT: improved working conditions and improved reliability of the reclamation system, its service life is increased and the conditions are created for reducing the material consumption.

2 cl, 1 dwg