Impact-resistant protective fence

The invention discloses an anti-impact type protective fence. The device comprises a fence body, a fixed seat, a mounting hole, a bottom wheel, a protective shell, a movable rod, a through hole, a sliding block, a stop column, a guide block, a guide groove, a buffer spring, a top sealing plate, a handle, a screw, a fixed vertical plate, a mounting column, a vertical cover, a movable plate, a movable convex block, a stop block, a mounting frame, a first guide wheel, a connecting rope, a pressure spring, a positioning block, a positioning groove, a second guide wheel, a wire passing hole channel, a mounting seat, a bobbin, a fixed rack and a connecting block. A movable rack, a rotating shaft, a gear, a slide bar, a carrier and a ball. The device has the beneficial effects that after the device is impacted, elastic buffering can be carried out, impact can be reduced, so that damage caused by the impact is reduced, specifically, the sliding block moves in the protective shell through movement of the movable rod,