Floor slab overhead mounting structure convenient to adjust

The utility model discloses a floor slab overhead mounting structure convenient to adjust, which comprises a floor base plate, a plurality of supporting seats are fixedly arranged on the floor base plate at equal intervals, connecting screw sleeves are arranged on the supporting seats, a screw rod is screwed on the connecting screw sleeves, and a positioning nut, a cushion block and a supporting plate bracket with an inverted T-shaped section are arranged on the screw rod in a penetrating manner. An inner polygonal hole is formed in the end of the screw, and the height of the supporting plate support can be adjusted by rotating the screw through a polygonal wrench. The height of the supporting plate support is adjusted by rotating the screw, the supporting plate and the cover plate do not need to be opened, the screw can directly pass through the screw receding hole, the upper end of the screw penetrates through the screw receding hole, the polygonal wrench penetrates through the screw receding hole to be in