ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,284, issued on Nov. 3.
"Rod fixing structure" was invented by Boyi Wu (Fujian, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rod fixing structure, including connecting sleeve, wherein the connecting sleeve has a sleeve hole with two ends in communication with each other, the sleeve hole being a tapered hole with a narrow upper part and a wide lower part; at least two connecting wings are provided on an outer wall of the connecting sleeve, spaced apart from each other on an outer circumference of the connecting sleeve; and the connecting sleeve is configured to be sleeve a vertically-arranged supporting rod, and each connecting wing is config...