AUTOMATIC WATER SUPPLY SYSTEM FOR IRRIGATION DITCH

摘要

PURPOSE: An automatic watering device is provided. The water level of paddy field is automatically controlled by the automatic operation for opening and closing it to save water, and reduce labor and time for administration of water and maintenance cost. CONSTITUTION: An upper body(20) is screwed into a lower body(30), a diaphragm cover(12) and a flexible diaphragm(13) are successively inserted into them to form an operating chamber(16). A discharge hole(31) is formed on one side of the lower body to be screwed into a water-inducing elbow(32), a hose assemble(70) and an air pump(50) are installed on another side thereof. A shaft(17) is installed at the center of the upper body by passing through the flexible diaphragm and the diaphragm cover to open and close the discharge cover. A switch(40) for change-over valve having a plurality of though-holes by a supporting frame(21) is installed at the upper part of the upper body.