Heel Structure with Adjustable Height

A heel structure with an adjustable height, comprising:

• a support rod penetrated by a pipe-shaped through hole, wherein tracks and engaging grooves are disposed on an inner wall of the through hole in such a manner that the engaging grooves are in communication with the tracks and run horizontally,
• a retractable element;
• and
• an adjustment rod being post-shaped to therefore penetrate the through hole of the support rod and undergo upward and downward displacement, wherein resilient engaging bumps are disposed above the adjustment rod and thus resiliently pressed within the tracks of the support rod, the tracks abut against the engaging bumps such that the engaging bumps retract to therefore attain a function of resilient pressing and positioning,
• wherein the retractable element is rotated such that circular pipes of different diameters decreasing downward and stepwise are fitted together so as to be folded and unfolded, a hollow-core mounting region is defined centrally at the circular pipes, and a fitting hole of a small diameter is disposed at a lowest one of the circular pipes and fixedly disposed on an outer wall of a bottom end of the adjustment rod,
• wherein the retractable element and the support rod are coupled to a shoe body, and a mere rotation of the adjustment rod is enough to drive the retractable element to change a height of the shoe body, so as to render usage easy, instant, convenient and flexible in terms of variations.