CUTOFF MECHANISM WITH FLOW REGULATOR FOR FLUSHING TANK OF LAVATORY PAN Russian patent published in 2007 - IPC E03D1/34 E03D1/22 

FIELD: sanitary equipment, particularly flushing valves for outlets and arrangement of outlet valves.

SUBSTANCE: cutoff mechanism comprises collar, overflow pipe, body with water drain orifices, with overflow pipe support and with collar seat, collar retaining unit, which fixes the collar during water discharge, and collar lifting unit provided with push button means. The push button means has working member with variable stroke. Cutoff mechanism also has double-arm lever secured to axis of overflow pipe support. The collar is connected to overflow pipe. The overflow pipe has radial shoulder in upper part thereof to connect overflow pipe with one arm of double-arm lever. Collar retaining unit comprises vessel with perforated bottom part. The vessel is telescopically installed on overflow pipe so that the vessel may be displaced along overflow pipe by means of control rod fastened to the second arm of lever. The collar retaining unit also comprises valve, which closes part of vessel orifice areas during water drainage. The valve is formed as control rod passing through one above vessel orifice and connected with radial flange of overflow pipe. The control rod has cylindrical extension closing the orifice when overflow pipe is lifted to its upper position. The working member may cooperate with lever arm, which is connected to the vessel by means of control rod. Vessel may be of annular shape.

EFFECT: increased efficiency.

2 cl, 1 dwg