Dam liquid level safety alarm device

The invention relates to the technical field of dam liquid level safety, in particular to a dam liquid level safety alarm device which comprises a mounting seat, a monitoring unit slidably connected with the mounting seat, a warning unit and an alarm unit driven by the monitoring unit, and a locking unit driven by the warning unit. The locking unit is used for locking the alarm unit. The device has the beneficial effects that an early warning or alarm mode corresponding to the current water level can be triggered according to different water level heights, workers can conveniently adopt corresponding processing methods according to different alarm modes, water level rising is prevented in time, flood disaster prevention is facilitated, and on the other hand, through arrangement of a protection plate and a locking unit, the safety of the workers is improved. The alarm can be protected to a certain extent, false alarm caused by rising of the alarm due to false touch of birds is reduced, and the alarm accuracy o