Corrugated board bracket

The utility model discloses a corrugated board bracket. The device comprises a main placing table, a plurality of supporting legs are welded to one face of the main containing table. A roller is mounted at one end, far away from the main placing table, of each supporting leg; auxiliary supporting tables are slidably connected to the two sides of the containing table correspondingly. Two symmetrical sleeves are rotatably connected to the ends, away from the main containing table and close to the supporting legs, of the two auxiliary supporting tables, connecting rods are slidably connected intothe sleeves, fixing rods are welded to the sides, close to the supporting legs, of the main containing table, and positioning mechanisms are jointly connected between the fixing rods and the connecting rods. The sliding rod is connected with the auxiliary supporting table, the auxiliary supporting table rotates to a horizontal state, and the sliding block is driven by the connecting rod to be fixed on the fixing rod, so