Multi-supporting post anti-floating box body for cast-in-place concrete hollow floor slab

The invention relates to a multi-supporting post anti-floating box body for a cast-in-place concrete hollow floor slab. The box body comprises a box body A; the box body A is of a cubic groove type structure; at least two supporting posts which are perpendicular to the bottom surface are uniformly distributed in the box body A; *-shaped reinforcing ribs with exhaust holes are arranged on the bottom surface of the box body A; exhaust holes are uniformly distributed among the reinforcing ribs on the bottom surface of the box body A; vertical reinforcing ribs with exhaust holes are arranged on each of the four side surfaces of the box body A; the upper ends of the side surfaces of the box body A are provided with circumferential fixed edges; and supporting leg mounting holes are vertically formed in the four vertex angles of the box body A. The multi-supporting post anti-floating box body for the cast-in-place concrete hollow floor slab is simple and reasonable in structure; the thicknessof the box body can be combined randomly; meanwhile, the height of the box body from the bottom plate can be adjusted randomly by inserting supporting legs; the labor intensity is low; the cost is low; the construction progress is fast; and the quality is easy to control.