DOUBLE-HANDLE MIXER TAP Russian patent published in 2016 - IPC F16K11/10 E03C1/04 F16K37/00 

FIELD: production of fittings.

SUBSTANCE: invention is intended for use in water-supply equipment for mixing in any ratio of hot and cold water and supply thereof to a shower or bath. Double-handle mixer tap comprises a body with channels for supply of hot and cold water and overflow of mixed water to a shower or outpour, two headworks with rotary handles and movable and fixed distribution plates. Fixed plates have through openings: central one and two arc-like ones around the former, while in the moving plate there is a sector groove. Each movable plate is kinematically connected with the rotary handle. Central openings of the fixed plates are connected with each other by an additional body channel. Arc-like openings in the first headworks are connected with the channels for supply of hot and cold water, respectively, and in the second headwork - with body channels, connecting them with the shower or outpour, respectively. Rotation of the movable plate of the second headwork directs the mixed water to the shower or outpour with adjustment of its flow rate. One of the distribution plates of the second headwork is equipped with an additional groove. Providing small enveloping of at least one through arc-like opening with the sector groove in the closed position of this headwork.

EFFECT: higher reliability of operation of the proposed mixer tap due to introduction into it of a device warning the user (by water pouring from the mixer tap) about incorrect closing of the mixer tap, which, in its turn, makes it possible to eliminate excessive consumption of water in supplying water systems and violation of temperature balance in them.

1 cl, 9 dwg