Plastic-steel door and window connecting structure

The utility model discloses a plastic-steel door and window connecting structure which comprises a right-angle-shaped connecting angle plate and a frame sectional material used for fixing a door and window, the two ends of the connecting angle plate are provided with bell mouths retracting into the connecting angle plate, the two ends of the frame sectional material are provided with inserting openings protruding out of the frame sectional material, the bell mouths are matched with the inserting openings, and the inserting openings are matched with the inserting openings. And the connecting angle plates are connected with the frame section bars through the bell mouths and the inserting mouths. The frame sectional materials are connected to the two ends of the right-angle-shaped connecting angle plate, the bell mouth and the spigot are arranged, the bell and spigot connecting mode is used, the problem of weld fillet cracking is avoided, meanwhile, the clamping grooves and the clamping rails are arranged, and t