Water-micro-controller

Claim 1

A water-micro-controller comprising: a front cover portion provided with a front panel, a control circuit associated with a liquid crystal display and a plurality of control keys being disposed in the front cover portion with the liquid crystal display and the control keys mounted on the front panel thereof, a dust-protect cover being-disposed on the front panel of the front cover portion to protect the liquid crystal display and the control keys disposed on the front panel; a rear cover portion capable of being sealingly secured to the front cover portion being provided at its interior with a recess; a front plate provided at the one side with a limited switch being arranged to be disposed in the front cover portion; a rear plate having a reed relay disposed thereon being arranged to be located in the front cover portion and adjacent to the front plate thereof; a shaft passing through the rear plate being supported at both ends respectively to the front plate and the rear cover portion; a gear set associated with a small cam being secured to the shaft and located between the front and rear plates, the small cam being arranged to correspond to the limited switch of the front plate; a motor provided with a gear shaft being disposed in such a manner that the gear shaft is arranged to drive the gear set together with the shaft to rotate; a water wheel provided around the central axis with a plurality of magnetic sensor cores being rotatably mounted on the shaft such that the magnetic sensor cores will respectively cross the reed relay of the rear plate to be capable of actuating the reed relay as the water wheel is driven to rotate, the water wheel capable of being received in the recess of the rear cover portion; a special designed cam adjacent to the water wheel being secured to the shaft and received within the recess of the rear cover portion; a control valve mechanism being integrally formed with the rear cover portion, the control valve mechanism comprising a cylindrical chamber which is formed at the top with a round recess and at the bottom with an inlet, a post furnished with an enlarged end being disposed in the cylindrical chamber with its enlarged end corresponding to the cam, a supporting frame having valve disposed thereon being located in the round recess of the cylindrical chamber and corresponding to the post thereof, a positioning cover with a spring-loaded positioning plug received therein being secured to the bottom side of the round recess of the cylindrical chamber, a connector having a filter disposed therein being mounted on the top of the positioning cover and secured thereto by a top cover which is threadedly engaged with the top of the cylindrical chamber.