Power-off protection device for belt conveyor

The utility model discloses a belt conveyor power-off protection device, which comprises a main body assembly, a support frame, a transmission part and a support part, the transmission part is arranged in the support frame, and the support part is arranged at the bottom of the support frame; the protection assembly is arranged on the supporting piece and comprises an emergency stop piece, a sliding piece, a fixing piece, a buffering piece and a detection piece, the emergency stop piece is arranged in the supporting piece, and the sliding piece is arranged in the supporting piece. The power-off protection mechanism has the advantages that power-off protection of the belt conveyor is completed by detecting the conveying belt through the detecting piece and triggering the emergency stop piece through the sliding piece, the protection mechanism is arranged at the bottom of the conveying belt, the conveying space of the conveying belt is not occupied, and the problem that the conveying belt is not damaged when the