Lateral die upper part tie reinforcing device

The utility model relates to a side die upper part tying and reinforcing device which comprises a fixing piece, an opposite-pulling screw rod and a screw cap, each fixing piece is formed by connecting two rectangular plastic plates, six fixing holes are formed in each fixing piece, the fixing holes correspond to one another, and internal threads corresponding to the diameter and the thread pitch of the opposite-pull screw rod are arranged on the fixing pieces. The fixing piece directly fixes the fixing piece on the surface of a formwork of a floor by using six iron nails to respectively penetrate through six fixing holes, one section of the opposite-pull screw rod is screwed and fixed with the fixing piece, the other end of the opposite-pull screw rod is positioned according to the sectional dimension of a concrete structure, and the nut is sleeved at the other end of the opposite-pull screw rod and is matched with a formwork supporting system to lock the formwork; the structure is firm, the section size of t