Center warehousing device for small-diameter shield tunneling machine

The utility model discloses a central warehouse entry device for a small-diameter shield tunneling machine in the technical field of shield tunneling machines, which comprises a driving box body and a central rotary joint, a box body central warehouse is arranged in the center of the driving box body, a central partition plate ring is sleeved on the outer wall of the central rotary joint, and the central partition plate ring is arranged in an inner cavity of the box body central warehouse. A plurality of sliding guide rails are evenly installed on the side wall of an inner cavity of the center bin of the box body, sliding blocks matched with the sliding guide rails are evenly fixed to the side wall of the center partition plate ring through bolts, and an opening and closing structure is installed between the center partition plate ring and the sliding blocks. The sliding guide rails, the sliding blocks and the opening and closing structure are additionally arranged between the original center partition plate