Detection and protection device for detecting rubber belt damage

The utility model provides a detection and protection device for detecting rubber belt damage. The device comprises a rubber belt conveyor returning rubber belt, infrared detection devices, a PLC, a CPU and a power control box. The infrared detection devices are arranged below the rubber belt conveyor returning rubber belt and connected with the PLC. The PLC is connected with the CPU connected with the power control box. When a rubber belt conveyor operates, the infrared detection devices start to work; when the rubber belt is normal, the infrared detection devices are in a normal state; when the rubber belt is damaged, the damaged rubber belt drops due to gravity, and light sources generated by generators of the infrared detection devices are instantaneously obstructed; when the light sources are received by light source receivers are in a disconnected signal mode, detection switches of the infrared receivers act; after action signals of the detection switches are received by the PLC, information of rubber d