Water conservancy gate with water quality detection function

The water conservancy gate with the water quality detection function comprises a gate frame, a detection structure and a gate closing structure, the detection structure is arranged on the outer surface of the gate frame, and the gate closing structure is arranged in the gate frame. A worker firstly starts a motor to drive a first gear to rotate, so that when the first gear moves, a second gear is driven to rotate, when the second gear moves, a guide rod is driven to rotate, and when the guide rod moves, two second bevel gears are driven to rotate; when the threaded rod rotates, the sleeve can be driven to move downwards, when the sleeve moves, the fixed rod can be driven to move downwards, when the fixed rod moves downwards, the gate can be driven to move downwards so that the gate can be closed, the gate can be opened in the reverse direction, and when the gate moves downwards, the telescopic rod can be driven to move. Therefore, the device is supported, and the sleeve is prevented from rotating along with t