US Patent 9226555 Cane structure

A cane structure includes a handle, an electrical components set, a stick, a sleeve, a cap button, a compression spring, and a biasing post. The handle defines a receiving chamber and an inner chamber. Multiple protrusions are formed on the surrounding wall of the inner chamber. The electrical components set is removably mounted in the receiving chamber. The stick is attached to the bottom portion of the handle and conceals the inner chamber. The sleeve is fixedly disposed in the inner chamber of the handle, wherein the sleeve defines multiple through holes for being inserted with the protrusions. Also, the sleeve abuts a step in the inner chamber. The cap button and the compression spring are fitted in the sleeve. The biasing post is fitted into the sleeve and urged against the compression spring, so that the cap button can enter the receiving chamber to engage the electrical components set.