Drainage valve of induction water cistern

• Main Author: YUEJIN HONG
• Format: Patent
• Language: English
• Published: 22.08.2007
• Subjects: FIXED CONSTRUCTIONS; FLUSHING VALVES THEREFOR; SEWERAGE; WATER SUPPLY; WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES

The utility model relates to the drain valve of the flush water tank, in particular to an inductive water tank drain valve which comprises a valve seat, an over-flow pipe which is arranged on the valve seat, a sealing ring which is arranged at the drain port of the valve seat, a guide rod which is arranged on the sealing ring, a delay tube which is arranged on the valve seat, a tube cap which is arranged at the top of the delay tube, a sealing spool which is arranged in the delay tube and a slip jacket which is arranged on the sealing spool; wherein the guide rod is positioned in the slip jacket, the top of the slip jacket meshes with the screw thread of the guide rod, a spring encloses the slip jacket, the spring is pressed against the tube cap and the spool, an intake pipe and a drain hole are arranged at the lower part of the delay tube, an electromagnetic valve and a processor which controls the motion of the electromagnetic valve are arranged in series at both the outtake ports of the intake pipe and the tap water pipe, the emitter and the receiver of an inductive device is arranged on the stool cover and both the emitter and the receiver of the inductive device are covered by a swing block. The drain valve can identify the shitting and pissing to flush accordingly to facilitate saving the water resource to help the environment sanitary with the quantity of flush water adjustable, and can be used in a high-rise building with a high pressure water supply or for double functional use.