Hand hole box for processing concrete prefabricated box culvert

The invention belongs to the field of prefabricated box culvert processing, and provides a hand hole box for concrete prefabricated box culvert processing, which comprises a box body, one side of the box body is fixedly connected with an inner mold, the inner mold is connected with the box body through a T-shaped screw, a sealing locking mechanism matched with the T-shaped screw is arranged in the box body, and mold side plates are arranged on both sides of the inner mold. A sleeve is arranged in the middle of the box body. Compared with the prior art, the construction method has the following beneficial effects that the hand hole box and the inner mold are fixed through the T-shaped screw rod, damage to the structure of the hand hole box is avoided, the T-shaped screw rod is a standard part, the maintenance cost is reduced, the production efficiency is improved, sealing treatment is conducted on the connecting portion of the hand hole box and the T-shaped screw rod, concrete slurry leakage is avoided, and th