The invention discloses a preset multi-range adjusting foot and a mounting method. The preset multi-range adjusting foot comprises a preset bolt, a first sleeve, a second sleeve and a leveling piece,the preset bolt is fixedly connected with a steel column, a fixing hole is formed in the center of a bottom plate of the first sleeve and is detachably and fixedly connected with the preset bolt, a limiting platform is arranged on the inner wall of the annular wall of the first sleeve, and the outer wall of the clamping part of the second sleeve is provided with a limiting plane corresponding to the limiting platform, so that after the clamping part is inserted into the annular wall, the second sleeve is clamped by the first sleeve and cannot rotate; and internal threads are arranged on the inner walls of the clamping part, external threads matched with the internal threads are arranged on the outer walls of the
screw joint part of the leveling piece, so that the
screw joint part of the leveling piece and the clamping part of the second sleeve can form a
screw joint relationship, and when the leveling piece is rotated, the screw joint part extends out or retracts back, so that the platform can complete base layer leveling. According to the preset multi-range adjusting foot, front-back fine adjustment can be achieved, so that the installation position of the wall panel is flush; andthe platform is used for being connected with
metal part nails on the back of the wall panel, the area is large, and errors of left-right deviation of the wall panel can be absorbed.