Combined hinge structure

The utility model relates to a combined structure of a top shaft, which presents a novel opening and closing mode on a hinged technology. The combined structure of the top shaft is composed of an eccentric shaft core, a top shaft sleeve and a rigid connecting sleeve. Any adjacent edges of a frame and a leaf are integrally hinged. The utility model has obvious advantages of improving sealing performance of doors and windows, reducing deformation of the doors and the windows, enhancing the sealing performance of the doors and the windows, and improving leakage-proof and rain-proof performance. The utility model provides a method for realization of the doors and the windows of high layers, the doors and the windows which are opened outwards with large areas, and the structure which needs the functions.