Water level early warning device for water conservancy project survey

The utility model discloses a water level early warning device for water conservancy project survey, which comprises a support and further comprises a floating plate floating on the water surface, guide columns which are vertically distributed and penetrate through the floating plate are fixed on the inner wall of the support, a scale plate is fixed at the top end of the floating plate, and a rack plate is fixed at the rear end of the scale plate. The inner wall of the support is rotationally connected with two sets of rotating rods distributed in parallel, and the two sets of rotating rods are connected through a transmission mechanism. According to the water level early warning device for water conservancy project exploration, a rack plate, a rotating gear, a rotating rod, a belt wheel, a belt, a display plate, a clamping plate and a groove are combined for use, when a floating plate ascends, a scale plate and the rack plate can be driven to move upwards, and the rack plate is meshed with the rotating gear