Protective equipment for concrete mixing plant

The utility model relates to protective equipment for a concrete mixing plant, which comprises a box body, an induced draft fan mounted on the box body, an air inlet pipe connected with the induced draft fan, a support block fixedly mounted on the box body, a motor fixedly mounted on the support block, a first rotating shaft fixedly mounted at a power output end of the motor, and a first bevel gear fixedly mounted on the first rotating shaft. The box body is provided with a supporting rod, the supporting rod is provided with a second rotating shaft through a bearing, the second rotating shaft is fixedly provided with a second bevel gear, and the second rotating shaft is fixedly provided with a fan; the first rotating shaft is fixedly provided with a first linkage gear, the first linkage gear is provided with a transmission chain in a matched mode, the box body is provided with a reciprocating lead screw through a bearing, the power end of the reciprocating lead screw is provided with a second linkage gear, th