Frame curtain wall structure for connecting buildings with different heights

The utility model discloses a frame curtain wall structure for connecting buildings with different heights, which comprises a suspension curtain wall, the upper end of the suspension curtain wall is connected with a new building net rack through a double-sleeve reinforcing structure, and the lower end of the suspension curtain wall is connected with an old building net rack through a vertical sliding support. The structure stress is clear, through the double-sleeve reinforcing structure, each node of a new building net rack has good welding quality, the connecting structure is good in stability, high in reliability and small in construction positioning error, the safety degree of each node is fully guaranteed while reliable transmission of vertical and horizontal force is guaranteed, and the construction efficiency is improved. Therefore, the stress safety of the curtain wall node is ensured; by means of the vertical sliding support, horizontal force of the hanging curtain wall can be transmitted to an old bu