Dustbin capable of automatically drawing large or small plastic bags

The invention discloses a dustbin capable of automatically drawing large or small plastic bags. The dustbin comprises a dustbin cover and containing grooves, a damping hinge is connected with one endof the outer wall of the exterior of the dustbin cover, and a dustbin body is mounted on the inner wall of the interior of the damping hinge; a fixing device is arranged on the outer wall of the exterior of the dustbin body, a partition plate is mounted at the middle of the inner wall of the interior of the dustbin body, and baffles are arranged on the inner wall of the interior of the bottom of the dustbin body; shielding plates are mounted at the lower ends of the outer walls of the exteriors of the baffles, and the containing grooves are formed in one ends of the outer walls of the exteriors of the shielding plates. The dustbin capable of automatically drawing the large or small plastic bags is provided with sliding grooves, the shielding plates, movement sliding blocks, movable shaftsand fixed blocks, the oute