| 摘要 |
A floodgate opening and closing apparatus of a dam is provided to increase productivity by simplifying structure for opening and shutting a floodgate by buoyancy, to cut down construction cost by reducing construction period, and to manage the dam easily by automatically regulating displacement and water storage amount according to water level. A floodgate opening and closing apparatus includes plural partitions(20) arranged and installed in an upper part of a dam body(10), a foreign matter filtering member(30) installed in a lower front of the partition to filtrate foreign matters, a floodgate(40) installed between the partitions and opened or shut down by lifting up and down according to buoyancy, a push bar(50) installed in a rear part of the floodgate, and a cylinder member(60) connected to an end of a cylinder rod(62) in the middle of the push bar, fixed by a support bar(70) and operated to press the push bar to the floodgate. The floodgate is formed of a cylindrical column. Both ends of the push bar are inserted in a guide groove(22) of the partition. |
