IMPROVED DUAL CONTROL MODE-TYPE DEODORISING AND WATER DRAINAGE VALVE

摘要

Disclosed is an improved dual control mode-type deodorising and water drainage valve. The water drainage valve comprises a linear control water drainage mechanism (2) and a hydraulic water drainage mechanism (3) controlled by a micro-immersible pump (31). The linear control water drainage mechanism (2) comprises a piston (21) with the piston (21) being partitioned into an upper and lower chamber by a central partition plate (211); the upper chamber is a piston control chamber for controlling the resetting of the piston (21), and the linear control water drainage mechanism (2) controls the upward action of the piston (21); and the lower chamber is a water drainage fluid chamber (24) for creating water pressure on the piston. More than one through hole (2111) is provided in the central partition plate (211) to communicate with the upper and lower chambers partitioned by the central partition plate (211), and the sum total of the size of the cross-sectional area of all the through holes (2111) in the central partition plate (211) is no greater than 15 square millimetres. The improved dual control mode-type deodorising and water drainage valve has a simple structure and can remove toilet odors and peculiar smells.