Dredging monitoring device

A dredging monitoring device belongs to the technical field of dredging engineering, comprises a weighing plate, and is characterized in that a fixing plate is arranged at the top of the weighing plate, a second rotating shaft is rotatably mounted in the fixing plate, a fan gear is fixedly mounted on the outer surface of the fan gear, a monitoring structure is fixedly mounted at the top of the second rotating shaft, and a motor is fixedly mounted on the second rotating shaft. The monitoring structure comprises a shell; according to the dredging monitoring device, through the monitoring structure, when the monitoring body normally conducts monitoring work, an electric telescopic rod is driven to drive a special-shaped connecting rod to stretch out forwards, due to the fact that the special-shaped connecting rod is connected with a connecting rod, when the special-shaped connecting rod moves, the connecting rod can be driven to pull an L-shaped rod to be turned over, and therefore a first rotating shaft can be