DRAIN FITTINGS Russian patent published in 2006 - IPC E03D1/34 E03D1/22 

FIELD: sanitary equipment, particularly drain means for flushing tanks, floor-mounted bowls and so on.

SUBSTANCE: drain fittings comprises body with central guiding means arranged inside flush tank and connected with discharge orifice thereof. The fittings also has discharge unit with shutoff valve made as two coaxial pipes. Shutoff valve is connected to lower end of one pipe. The fittings also comprises lever discharge unit lifting mechanism, lever mechanism drive pusher, double triggering button and discharge unit lowering mechanism. Discharge unit lowering mechanism provides smooth discharge unit movement and is made as vertical shell arranged on the body and enclosing discharge unit and cup with central orifice made in cup bottom installed on the shell. The discharge unit lowering mechanism is provided with orifices formed in side surface thereof. The cup orifice is adapted for discharge unit reciprocation. Outer tubular cup part has disc integrally formed with the tubular part and provided with through orifices. The disc is located inside the cup and spaced from cup walls. Check valve is arranged between disc and cup bottom. The check valve is made as flat ring with L-shaped limiters, which limit check valve opening and pass through orifices made in tubular part disc.

EFFECT: possibility to arrange fittings in flushing tanks having different height and configuration, simplified structure, assemblage and adjustment.

1 dwg