Rear mounting crossbeam curtain wall

The utility model discloses a rear mounting crossbeam curtain wall, including curtain wall beam, crossbeam fixed block, horizontal corbel board and the fixed curtain wall beam screw with the crossbeam fixed block, be equipped with on the horizontal corbel board can with the one end counterbalance of screw in order to prevent that the elastic component of not hard up phenomenon from appearing in the screw. After the curtain installation was good, the elastic component can extrude the screw to can effectively avoid the screw not hard up phenomenon to appear. 本实用新型公开了种后装横梁幕墙，包括幕墙横梁、横梁固定块、横梁托板和固定幕墙横梁与横梁固定块的螺钉，所述横梁托板上设有可与螺钉的端相抵以防止螺钉出现松动现象的弹性件。当幕墙安装好后，弹性件会挤压螺钉，从而能够有效避免螺钉出现松动现象。