Patent ID: 7481673

Claim:
An airtight RF coaxial connector with self-locking by snap-fastening, whose plug connector comprises a plug outer conductor, a locking cup connected with a socket connector, and an inner spring provided between the plug outer conductor and the locking cup, characterized in that the front end of the plug outer conductor is in the shape of continuous circles, forming an overall ring; the front end of the plug outer conductor is provided with a ring-shaped bulge with right angle trapezoid shaped cross section, the hypotenuse of the trapezoid being faced with the front side of the socket connector, and the right angle side of the trapezoid being positioned normal to the longitudinal axis of the socket connector on the back side of the connector; the inner part of the socket connector is provided with a groove provided with a sealing ring; and the distance between the mid-point of the ring bulge and the front contact surface of the plug outer conductor corresponds to that between the mid-point of the groove and the front contact surface of the socket connector.