Monitoring device for water conservancy project

The monitoring device comprises a water conservancy pipeline, an adjusting pipeline and a water conservancy monitor, the water conservancy pipeline is fixedly provided with an adjusting disc, the right side of the adjusting disc is provided with a rotating disc, the rotating disc is rotationally sleeved with the water conservancy pipeline, and the part, close to a water inlet, of the adjusting pipeline is provided with a contraction part which is in a contraction shape; the portion, close to the water outlet, of the adjusting pipeline is provided with an expansion-shaped expansion portion, the contraction portion and the expansion portion are both communicated with the water conservancy pipeline through vertical pipes, pistons are slidably connected into the vertical pipes, vertical rods are fixed to the pistons, the two vertical rods are both led to the water conservancy pipeline, and a transmission frame of a rectangular ring structure is fixed between the two vertical rods. When water flows, the pressure i