Novel titanium-magnesium alloy door and window structure

The utility model discloses a novel titanium-magnesium alloy door and window structure. The device comprises a lower frame and an upper frame, the lower frame and the upper frame are fixedly connectedthrough a middle frame. Two groups of first angle sheets and two groups of second angle sheets are symmetrically arranged above and below the lower frame respectively; the two groups of first angle sheets are respectively positioned on two sides of the bottom of the middle frame; two groups of third angle sheets are symmetrically arranged on the upper frame; a first limiting block, a second limiting block and a third limiting block are connected to the upper portions and the lower portions of the piece grooves in the positions of the first corner piece, the second corner piece and the third corner piece in a threaded mode. The door and window frame has the advantages that the firmness of doors and windows can be improved, in addition, the durability, the attractiveness, the pressure resistance and the wind resist