Protective device for belt protective net of belt conveyor

The utility model provides a protective device for a belt protective net of a belt conveyor, and belongs to the technical field of belt protective net protection of belt conveyors. The problem that when a belt protective net is installed, the belt conveyor is poor in starting safety is solved. Comprising a plurality of belt protection nets installed on the belt conveyor, each belt protection net is provided with a contact switch, the contact switches are pressed through rubber pads of the protection nets to conduct a circuit when the protection nets are installed, and the multiple contact switches are connected with a controller in the protection device through wires. The protection device comprises an explosion-proof shell, a plurality of signal transmission interfaces are arranged on the explosion-proof shell, a display, a start-stop button and an indicator light are arranged on the front side of the explosion-proof shell, and the controller is connected with the display, the start-stop button and the indic