Patent ID: 8776827
Filing Date: 2014-07-15
Classification: E03B,G01F,G01M,Y02A,Y10T

Abstract:
1. A household tap water monitor comprising: a water meter and a valve connected in series between a tap water pipe and a main tap water inlet pipe, with the valve being an electric control valve, a single chip micyoco, having the photoelectric detector, adapted to detect rotation of an impeller in the water meter thereof, an electrical source circuit powering the single chip micyoco, the photoelectric detector, the liquid crystal display, and the electrical control valve, wherein the electrical control valve comprises a deceleration gear unit, an electric motor, an option device and a faucet valve; the first output port the single chip micyoco being connected to a control port of the electric motor; the deceleration gear unit comprising a spiral rod, a worm gear and a gear wheel installed on a first axle, a middle gear wheel and a gear wheel installed on a second axle, a gear wheel installed on a lower portion of an output axle, the spiral rod installed on a rotation axle of the electric motor meshing with the worm gear, the gear wheel on the second axle meshing with the gear wheel on the output axle; the option device comprising a spring fitted on an upper portion of the second axle and an option knob having insertion legs installed on an upper end of the second axle; the insertion legs of the option knob inserting in corresponding insertion holes, the spring pushing the second axle to a lower position, the middle gear wheel on the second axle meshing with the gear wheel on the first axle; when the insertion legs of the option knob do not insert in the corresponding insertion holes, the second axle being at an upper lower position, the middle gear wheel on the second axle not meshing with the gear wheel on the first axle anymore; the output axle being connected with a valve axle of the faucet valve.