Sealing structure of plastic-steel door and window

The utility model discloses a sealing structure of a plastic-steel door and window, which comprises a window frame buckle and a rubber block which are arranged in a window frame, the rubber block is arranged in the window frame buckle, two sides of the interior of the window frame buckle are fixedly connected with convex blocks, the convex blocks and the inner wall of the window frame buckle form a groove, and the rubber block is arranged in the groove. Limiting grooves matched with the protruding blocks are formed in the two sides of the rubber block, two glass grooves are formed in the end face of the rubber block, and sealing strips are installed on the two sides, close to the rubber block, of the two glass grooves. The rubber blocks are arranged in the window frame buckles, the glass is installed in the rubber blocks, the edges of the glass are sealed through the sealing strips, the rubber partition blocks are installed between the two pieces of glass, and the sealing effect between the glass and the seal