Movable positioning device fixed at bottom of cantilever scaffold

The utility model relates to the technical field of building construction, in particular to a movable positioning device fixed at the bottom of a cantilever scaffold. The threaded rod is vertically placed between the I-shaped steel and the fixed steel pipe, the upper portion of the threaded rod is inserted into the bottom of the fixed steel pipe, the threaded rod is sleeved with a threaded clamping table located at the bottom of the fixed steel pipe, the first steel plate is horizontally welded to the bottom end of the threaded rod and located on a wing plate of the I-shaped steel, and the right side of the first steel plate is folded downwards to be clamped on the wing plate of the I-shaped steel. The second steel plate is positioned below a wing plate of the I-shaped steel and is opposite to the left side of the first steel plate; the left side of the first steel plate and the second steel plate are fixed through fixing bolts and clamp the wing plate of the I-shaped steel; the bottom height of the ring lock