Protective equipment movable threshold cutting device

The invention provides a protective equipment movable threshold cutting device. The device comprises a semi-automatic cutting machine, rails, a supporting assembly and a guide pipe horizontal moving assembly. A plurality of rail supporting plates of the supporting assembly are sequentially arranged in parallel, the upper end faces of the rail supporting plates form a fixed platform for arranging the rails, a plurality of movable threshold supporting plates are arranged in parallel, the upper end faces of the movable threshold supporting plates form a cutting platform, and a gap is formed between the cutting platform and the fixed platform. The rails are fixed on the fixed platform, and the semi-automatic cutting machine reciprocates in the walking direction of the rails. Two guide rods ofthe guide pipe horizontal moving assembly are fixed to the two sides of the walking direction of the rails correspondingly, the two ends of a steel wire rope are fixed to the two guide rods correspondingly, the pulley is matc