Formwork combination

The invention provides a formwork combination. The formwork combination comprises a first formwork, a second formwork and an opposite-pull assembly, and the first formwork and the second formwork arearranged at intervals. The opposite-pull assembly comprises a screw, a nut and at least one blocking piece, the screw comprises a first end part and a second end part opposite to the first end part, the nut is used for sleeving the first end part, a slot is formed in the second end part, the blocking pieces are rotatably contained in the slot, and the blocking pieces comprise first positions and second positions. When the blocking pieces are located at the first positions, the blocking pieces are located in the slot, so that the second end penetrates through the first formwork and the second formwork. When the blocking pieces are located at the second positions, parts of the blocking pieces are located outside the slot, the blocking pieces are used for abutting against the surface of the second formwork, and the n