| 摘要 |
PURPOSE: A fishway device is provided to conveniently form a fishway in a pre-established beam using different water pressures and to prevent flowing river water from being cut off. CONSTITUTION: A fishway device comprises a conveying pipe(20), a water pipe(30), a drain pipe(40), and a variable unit(50). The conveying pipe is installed in a beam and a conveying space is formed inside. The water pipe is connected to one side of the conveying pipe, and a water inlet of the water pipe is submerged into river water. The drain pipe is connected to the other side of the conveying pipe. The variable unit varies the length of the drain pipe. |
