Patent ID: 10604978

Abstract:
An adjustable-angle positioning and self-closing hinge has two hinge leaves, a fixing pin, a screw knuckle, a screw ring, a fixing base, and an adjusting base; each leaf of the hinge comprises a knuckle and a leaf fastened outside the knuckle; the fixing pin has a threaded pin; the screw knuckle is fastened inside the knuckle of one of the hinge leaves, the fixing base is fastened inside the knuckle of one of the hinge leaves, and the screw knuckle and the fixing base are spaced separately; between the screw knuckle and fixing base in the knuckles of the two hinge leaves are disposed the fixing pin, the screw ring, two magnets, springs, and the adjusting base; the threaded pin of the fixing pin is screwed to the screw knuckle; a first spring abuts between the fixing pin and the front ring edge and gasket of a cup body.