| 摘要 |
The present invention relates to a hydraulic floodgate which prevents a leakage by being completely closed without increasing the weight of the hydraulic floodgate in the floodgate closed by the weight. According to the present invention, the floodgate installed to cross a waterway opens and closes the waterway and vertically moving while being inserted into a floodgate frame. A fixing roller can protrude from the inner side of the floodgate toward a side. The fixing roller moves the floodgate to the lower side while being inserted into a fixing cap formed on the side of the floodgate frame with a U-shaped cross section. After the floodgate moves down due to the weight of the floodgate, the fixing roller protrudes so that the floodgate additionally moves down by the fixing cap. Therefore, the hydraulic floodgate can prevent the leakage without increasing the weight of the floodgate as an adhesive force of the floodgate to the bottom surface is expanded. |
