Screw rod for thermal insulation wallboard connecting piece

The utility model relates to the technical field of screw rods for thermal insulation wall connecting pieces, and discloses a screw rod for thermal insulation wall plate connecting pieces, which comprises a threaded rod, a reinforcing plate is movably connected onto the threaded rod, a fixing rod is mounted on the reinforcing plate, anti-slip thorns are mounted on the fixing rod, a stop block is mounted at the right end of the threaded rod, and a screw rod is mounted at the right end of the stop block. A polygonal bolt is installed on the right side of the check block, a cross-shaped groove is formed in the inner side of the polygonal bolt, the polygonal bolt is rotationally connected with a nut in cooperation with a threaded rod, a protruding ring is installed on the nut, the threaded rod penetrates through the heat preservation plate to fix the heat preservation plate, the nut is embedded in a wall, the left end of the threaded rod is in a conical thorn shape, and threads are formed in the left half section