| 摘要 |
The present invention relates to a floodgate operated by a water pressure and a dead weight, and more specifically, to a floodgate operated by a water pressure and a dead weight which is installed in a river or an agricultural waterway, installs an automatic gate on a lower side of the floodgate which is opened by a water pressure and closed by a dead weight to discharge water by the automatic gate when a small quantity of water flows to prevent sedimentation of a foreign substance in a gap of the floodgate. Also, the present invention comprises: a floodgate main body installed on an upper fixing beam of the waterway to allow an upper portion thereof to be rotated by a hinge, opened by a water pressure, and closed by a dead weight; and an automatic gate installed on a lower side of the floodgate main body to be rotated. The automatic gate is opened by a water pressure, is closed by a dead weight, and has an elastic uneven portion disposed on a lower end of the automatic gate. |
