Beam column reinforcing structure of frame structure and dismantling method of beam column reinforcing structure

The invention discloses a beam column reinforcing structure of a frame structure. The device comprises a main body column, an upper supporting rod, an unfolding plate, a lifting mechanism, an adjusting mechanism and an unfolding mechanism, sliding grooves are symmetrically formed in the two ends of the main body column, a through groove is formed in the middle of the main body column, the two sliding grooves communicate with the through groove, the inner wall of one sliding groove is slidably connected with the upper supporting rod, and the inner wall of the other sliding groove is slidably connected with the lower supporting rod; according to the device, through unfolding of the unfolding plates and the two extension plates, the reinforcing and supporting area is increased, through cooperation of an upper thread and a lower thread on a rotating shaft, the upper supporting rod and the lower supporting rod are extended, and therefore the reinforcing and supporting effects are achieved; the first limiting ring