US Patent 9494184 Rail-type vacuum fixer

The present invention relates to a rail-type vacuum fixer, and more specifically relates to the rail-type vacuum fixer with a two-piece structure composed of a suction plate, on which a screw bar is installed at the center of the top surface and a hard rotary rail is installed in the circumferential direction in the areas of the top surface, and a rotary cap, which has a screw pipe inserted by the said screw bar at the center of the inside and is equipped in the border area with a sliding rim corresponding to the said rotary rail.