Waterproof and drainage system for large-area curtain wall casement window

The invention belongs to the technical field of glass curtain walls, and relates to a waterproof and drainage system for a large-area curtain wall casement window, which comprises a window frame, a window sash, three sealing strips, a water retaining table and an olecranon dripping edge. The water tightness and waterproofness of a casement window curtain wall used in a large area are improved, later reworking and maintenance are avoided, and the overall fusion degree of the opening sash and a curtain wall system is improved; the optimal balance of energy conservation, comfort and attractiveness of the whole building is achieved, the national dual-carbon policy is met, the construction quality of the casement window curtain wall used in a large area is effectively improved, and a new solution is provided for the outer facade of the building. 本发明属于玻璃幕墙技术领域,涉及一种用于大面积幕墙平开窗的防排水系统，包括：窗框、窗扇、三道密封条、挡水台与鹰嘴滴水沿，本发明通过三道密封条依次从外到内对窗扇与窗框之间的缝隙进行防排水，提高了大面积使用平开窗幕墙的水密性、防水性，避免后期返工维修，提高开启扇与幕墙系统的整体融合度；实现整个建筑节能、舒适性、美观的最佳平衡，符合国家双碳政策，