Adjustable two-stage beam structure

The utility model discloses an adjustable secondary beam structure which comprises a first connecting profile, a second connecting profile, hoisting pieces and a screw rod, hoisting grooves are formed in the first connecting profile and the second connecting profile, and a plurality of hoisting pieces are installed in the hoisting grooves; the two ends of the lead screw penetrate through the hoisting pieces on the first connecting sectional material and the second connecting sectional material correspondingly and are fixed through nuts. The first connecting profile and the second connecting profile are connected through a lead screw. The connecting profiles of the upper-layer cellular board and the lower-layer cellular board are connected through the lead screws, and the positions of the first connecting profiles and the second connecting profiles on the lead screws are adjustable, so that the side panels of different sizes are adapted, and the requirement for connecting various secondary suspended ceilings a