US Patent 8641446 Coaxial probe

A coaxial probe is revealed. A protective sleeve is mounted in a sleeve port of a main sleeve. A leaning flange projecting inward is formed on a bottom end of a sleeve port of the main sleeve. The leaning flange is stopped and positioned by a stopping flange on an upper part of the protective sleeve. A probe is disposed on a sleeve port of the main sleeve and is passed through a sleeve port of a protective hole. Thus the probe is hidden in the protective sleeve. After the protective sleeve being in contact with a coaxial connector to be detected, the probe is moved to project from the protective sleeve for detecting the coaxial connector. Thereby damages of the probe caused by impact force received can be avoided.