Variable-width cast-in-place box girder formwork and wing plate bearing integrated structure

The utility model discloses a variable-width cast-in-place box girder formwork and wing plate bearing integrated structure which comprises a full framing, longitudinal bottom steel channels, transverse square timbers, a multi-truss wing plate bearing, longitudinal square timbers, handrails, a bottom formwork, a wing plate formwork and the like. The wing plate supports are connected with the wing plate formworks through lower hinges and upper hinges, each wing plate support is composed of a bottom flat rod, an inner inclined rod, a vertical rod, a middle inclined rod and an upper inclined rod at the position with the same width as the main line of the box girder, and the widening section of the main line of the box girder is formed by welding an edge inclined rod at the outer end of the bottom flat rod. The side inclined rods, the upper inclined rods, the inner inclined rods, the vertical rods and the middle inclined rods jointly form a variable-width wing plate support, longitudinal square timbers are sequent