Water level monitoring device for hydraulic engineering

The utility model discloses a water level monitoring device for a water conservancy project, and belongs to the technical field of water level monitoring, the water level monitoring device comprises a U-shaped frame, the bottom end of the U-shaped frame is provided with a supporting cylinder inserted into the water surface, the side wall of the supporting cylinder is provided with a fixing structure used for being connected with the U-shaped frame, and the side wall of the supporting cylinder is provided with two drainage grooves which are symmetrically arranged; a hemispherical block is slidably installed in the supporting cylinder, a floating plate is fixedly installed at the top end of the hemispherical block, the floating plate and the hemispherical block float on the water surface, a light reflecting plate is fixedly installed at the top end of the floating plate, a laser sensor is installed on the top wall of the U-shaped frame and matched with the light reflecting plate, and a protective cover is insta