| 摘要 |
PURPOSE: A water level sensor is provided to set the wanted water level automatically by sensing the changes of water level. CONSTITUTION: The water level sensor comprises: a fixed frame(10) erected on a fixed plate(11); a lower carrier(20) fitted into the fixed frame(10), fixed with a fixing screw(21) and coupled to right, left covers(60,61); an upper carrier(30) fitted into the fixed frame(10) and fixed with a fixing screw(31) through a long groove(62) of the left cover(60); a leveler(40) coupled with the upper carrier(30) to seesaw by the movement of a buoy(43); limit fixtures(50,51) coupled on the side of the leveler(40) to widen upward by springs and provided with limit switches and spacing pins; and a spacer(70) fitted with spacing pins of the limit fixtures(50,51) and fixed into the right cover(61).
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