Electromagnetic detection device with protection function

The invention relates to the technical field of electromagnetic detection, in particular to an electromagnetic detection device with a protection function. The invention provides an electromagnetic detection device with a protection function. According to the technical scheme, the electromagnetic detection device with the protection function comprises a protection shell, a stretching piece is arranged in the protection shell, a detection chassis is fixedly connected to the stretching piece, a detector is fixedly connected to the top end of the detection chassis, a driving frame is fixedly connected to the detection chassis, the top end of the driving frame penetrates through the top wall of the protection shell, and an alarm is fixedly connected to the protection shell. A fixing rod is fixedly connected to the protective shell and sleeved with a lifting rod, and clamping holes are formed in the lifting rod and the fixing rod at equal intervals. The moving frame and the electric pulley are hung on the high-vol