Patent ID: 8613413

Claim:
A compact type fine-tuning lifter, defining an X-axis, a Y-axis and a Z-axis directions, and the compact type fine-tuning lifter comprising: a base, comprising a slot hole and at least one fixing seat, the slot hole being open along the X-axis and Y-axis directions and dividing the base into a upper base portion and a lower base portion along the Z-axis direction, the upper base portion including a first sliding rail, a plurality of first screws and an upper opening, the first sliding rail extending along the X-axis direction and including a plurality of first threaded holes, the first threaded holes being open along the Y-axis direction, the first screws being screwed into the first threaded holes respectively, the upper opening being open along the Z-axis direction, the lower base portion including a lower opening, the lower opening being open along the Z-axis direction and corresponding to the upper opening, the at least one fixing seat extending outwardly from the base; a sliding seat, slidable mounted on the first sliding rail and abutting against the corresponding first screws, the sliding seat including a second sliding rail, a plurality of second screws and a sliding slot, the second sliding rail extending along the Y-axis direction and including a plurality of second threaded holes, the second threaded holes being open along the X-axis direction, the second screws being screwed into the second threaded holes respectively, the sliding slot being open along the Z-axis direction, extending along the Y-axis direction and corresponding to the upper opening; a sliding block, slidably mounted on the second sliding rail and abutting against the corresponding second screws, the sliding block including a threaded hole which is open along the Z-axis direction; and an adjustable screw bolt, being threadedly connected to the threaded hole of the sliding block along the Z-axis direction via the lower opening and the upper opening through the sliding slot.