Reciprocating elevator with protective structure

The utility model relates to the technical field of conveying equipment, in particular to a reciprocating elevator with a protection structure. According to the technical scheme, a machine frame is arranged, an inner cavity is formed in the machine frame, discharging ports are formed in the cavity walls of the front end and the rear end of the inner cavity of the machine frame, four sets of first lead screws are evenly arranged in the machine frame, the first lead screws are distributed in a rectangular array shape, and a lifting mechanism used for bearing materials is arranged in the machine frame; the lifting mechanism comprises a rectangular part, a transmission assembly and a discharging assembly. Through cooperation of the baffle, the lead screw, the gear, the bevel gear, the moving rod, the supporting rod, the rotating rod, the moving block, the limiting piece, the sliding block and the rack, materials can be protected in the material descending process, the protected baffle is driven to rotate after th