Sectional material door and window mounting, adjusting and reinforcing device

The utility model relates to the technical field of door and window installation reinforcing parts, in particular to a sectional material door and window installation adjusting reinforcing device which comprises a positioning connecting plate, the positioning connecting plate is installed in a clamping groove of a door and window sectional material, and the surface of the positioning connecting plate is provided with a two-face milling flat adjusting lead screw through a limiting part. An expansion piece is mounted at one end of the two-side milling flat adjusting screw rod in a sleeving manner; the sectional material door and window installing, adjusting and reinforcing device has the advantages that the occupied space is small, later-stage closing-up treatment of door and window openings is facilitated, the vertical and horizontal position adjustment of sectional material door and window frames in the installing process is facilitated due to the special internal and external thread structural design, instal