Windowsill waterproof building structure

The utility model relates to a windowsill waterproof building structure, and relates to the technical field of windowsill waterproofness, the windowsill waterproof building structure comprises a window frame and a window sash, the window frame is fixedly installed in a wall body, the window sash is arranged in the window frame and is hinged to the window frame, the lower end of the window sash is provided with an installation groove, a water baffle is arranged in the installation groove, and the water baffle is in sliding connection with the installation groove. By arranging the water baffle in sliding connection, extension change of the length of the window sash is achieved, rainwater is effectively prevented from being poured into a room, and the normal working state of the window sash is guaranteed. 本申请涉及一种窗台防水建筑结构，涉及窗台防水的技术领域，其包括窗框和窗扇，窗框固定安装在墙体内，窗扇设置于窗框内并与窗框相铰接，窗扇的下端设置有安装槽，安装槽内设置有挡水板，且挡水板和安装槽滑动连接。本申请通过设置滑动连接的挡水板，实现了窗扇长度的延伸变化，有效避免了雨水灌入室内，保证了窗扇正常的工作状态。