DRAIN MANIFOLD HEAD Russian patent published in 2016 - IPC E02B11/00 

FIELD: land reclamation.

SUBSTANCE: head of drainage collector comprises open channel 1 and connected to header 2 wellhead pipe 3, well divided by wellhead pipe 3 on two closed unequal parts, namely to upper control chamber 7 and lower valve top chamber 8. In upper control chamber 7 there is vertical inlet pipe 21. Bottom chamber 8 is made in form of a valve chamber with extra seat 11 located coaxially with main seat 10 and to cover both holes with one valve 9. Valve 9 is made in form of a cone with its walls are made of rubber material. Inside rubber valve 9 in its upper and lower ends of stiff plates 14 are connected to each other by means of rod 15 secured to rod 16 float 13 with limiter 18 arranged on free end and entering in contact with second limiter 19 secured to cover 20 chamber top part 7 arranged above wellhead pipe 3. Valve chamber 8 is connected with tubular channel 12 with top chamber 7 and coupled with an open channel 1 by means of additional pipe 6 arranged inclined towards open channel 1. Additional pipe 6 is installed in one vertical plane with wellhead pipe 3. One end of additional pipe 6 is arranged on bottom of channel 1 and is equipped with screen 5, and other is connected to valve chamber 8 with an additional seat.

EFFECT: invention makes it possible to freely discharge in open channel drain water, which provides efficient operation of manifold with drains and their drying effect, allows early removal of excess moisture and early spring tillage.

1 cl, 1 dwg