Belt conveyor safety protection device

The utility model discloses a safety protection device of a belt conveyor. The protective device comprises a protective net arranged outside the belt conveyor, a protective door is arranged on the protective net, the protective door comprises a door frame and a door body, a limit switch corresponding to the door body is arranged on the door frame, and the limit switch is connected between a control circuit of the belt conveyor and an alternating current power supply in series. The belt conveyor has the advantages that a dangerous area is blocked by the protective net and the protective door, the belt conveyor cannot be started and operated only by opening the protective door during cleaning, safety accidents caused by sudden starting and operation of the belt conveyor during cleaning of the lower portion of the belt conveyor can be effectively avoided, and the belt conveyor is simple and reliable in structure and low in construction cost. 本实用新型公开了一种皮带机安全防护装置，包括设置于皮带机外部的防护网，所述防护网上设置有防护门，所述防护门包括门框和门体，所述门框上设置有与所