Water depth measuring device for water conservancy construction

The utility model discloses a water depth measuring device for water conservancy construction, which comprises a fixed base, a rod groove is arranged at the middle position of the top surface of the fixed base, a threaded rod is movably connected in the rod groove, a motor is arranged at one end of the fixed base, and the threaded rod is movably connected with the rod groove. One end of the threaded rod penetrates through the rod groove and is fixedly connected with the output end of the motor, the peripheral surface of the threaded rod is in threaded connection with a threaded sleeve, the top of the threaded sleeve is fixedly connected with a moving seat, the top of the moving seat is fixedly connected with a fixed seat, and a limiting groove is formed in the surface of the fixed seat; and a moving block is slidably arranged in the limiting groove, one end of the moving block is fixedly connected with a connecting seat, a rack is slidably arranged in the connecting seat, and one end of the rack is fixedly co