Suspended ceiling

The utility model relates to the technical field of building decoration. The problem that an auxiliary keel is difficult to disassemble and replace is solved. The utility model provides a suspended ceiling. The technical scheme is as follows: the device comprises a mounting framework and a calcium silicate board, the mounting framework comprises a main keel and an auxiliary keel; an inverted-T-shaped frame protrudes out of the main keel. Connecting pieces are arranged on the auxiliary keels; the connecting piece comprises a fixed cylinder fixed on the auxiliary keel; movable rods penetrate through the ends, away from the auxiliary keels, of the fixing cylinders. A fixed plate is fixed on the inner wall of the fixed cylinder; movable rod penetrating through fixed plate, an elastic piece fordriving the movable rod to move away from the inverted-T-shaped frame is arranged on the fixed plate, a pressing block for compressing the elastic piece is fixed to the movable rod, a protruding strip is connected to the end