Large-span arched fabricated outer formwork for school construction

The invention discloses a large-span arched fabricated outer formwork for school construction, and relates to the technical field of building construction.The large-span arched fabricated outer formwork comprises an arched mechanism, a supporting mechanism is arranged at the bottom of the arched mechanism, a moving mechanism is arranged at the bottom of the supporting mechanism, the arched mechanism comprises a set of connecting pieces, and a connecting hole is formed in one side of the outer wall of each connecting piece; a connecting column is fixedly inserted into the other side of the outer wall of each connecting piece, each connecting column is movably inserted into the inner surface wall of the other connecting hole, a first limiting hole and a second limiting hole are formed in the two sides of the outer wall of each connecting piece, and a first connecting block is fixedly installed at the bottom of each connecting piece. By arranging the multiple connecting pieces, the multiple connecting pieces can