| 摘要 |
PURPOSE: A water level control device is provided to be installed on a water reservoir such as rice paddy to easily discharge water to the outside when water reaches a fixed water level. CONSTITUTION: A water level control device includes a main body(110), a discharge pipe, a cover(130), an airtight seal, and an inflow pipe. The main body has a cylindrical shape with a first diameter, a first screw thread formed on the outside of the upper part, an inclined part narrowing with inclination toward to the inside on the lower end, a lower pipe extending vertically on the end of the lower part of the inclined part, and multiple inlets for water inflow to the inner space on the inclined part. The discharge pipe has an external diameter corresponding to a second internal diameter, and is connected with a lower part pipe to discharge water flowing to the inner space. The cover is provided with a diameter corresponding to the first internal diameter, extended to an upper plate including at least one air circulating hole(132) and the circumferential surface of the upper plate, and composed of a second screw thread corresponding to the first screw thread. |
