DEVICE OF AUTOMATIC FLUSHING FOR TOILET SINK Russian patent published in 2012 - IPC E03D3/00 

FIELD: construction.

SUBSTANCE: device comprises an indirect acting solenoid valve 10, a sealed accumulator vessel 1 for water and air. The indirect acting solenoid valve 10 is mutually connected with a utility water source under pressure. The solenoid valve 10 comprises a floating stop element to supply water to a toilet sink 8 with two connecting parts 11, 12. The stop element of the solenoid valve 10 is mutually connected with an actuating mechanism 13 of a drive. The actuating mechanism 13 of a drive is connected via a microcomputer 14 with a sensor 15. The tight accumulator vessel 1 for water and air has a flooding nozzle 3. The flooding nozzle 3 is connected with the utility water source under pressure. On the side surface of the tight accumulator vessel 1 of water there is an outlet nozzle 9 arranged. The indirect acting solenoid valve 10 is arranged with a smoothened relief of the inner surface of its throughput channel and is couple with one connection part 11 with an outlet nozzle 9 of the accumulator vessel. The connection part 12 of the valve is arranged for coupling with an inlet hole of the toilet sink 8. The accumulator vessel 1 is arranged with an inner volume equal to (0.5-0.8)·10³ of the cubic diameter of the maximum effective throughput section of a through channel of the solenoid valve 10. The stop element of the solenoid valve 10 is mutually connected with the actuating mechanism 13 of the drive with the possibility to change efficient throughput section of a through channel of the solenoid valve 10 from the "closed" position into the "opened" position along an exponential curve.

EFFECT: reduced hydraulic resistance when supplying water from a source into a toilet sink and control of a speed of water supply into a toilet sink.

7 cl, 6 dwg