Vertical light steel keel connecting structure convenient to disassemble

The utility model discloses a connecting structure of a vertical light steel joist convenient to disassemble, which comprises the light steel joist, a second connecting block is arranged at the top of the light steel joist, a first connecting plate capable of moving left and right is arranged at the top of the second connecting block, and a fixing plate is fixedly arranged at the top of the second connecting block. A supporting plate is installed on the side surface of the fixing plate, a second connecting plate capable of moving left and right is arranged at the top of the supporting plate, and the limiting mechanism comprises a first limiting part and a second limiting part; the vertical light steel keel has the beneficial effects that through the designed limiting mechanism, when the two vertical light steel keels are spliced, the stability of the first extension part when the first extension part is pressed to move is increased, and the stability of the first connecting plate when the first connecting pla