The invention relates to the field of electric connectors, in particular to an
insertion and extraction force controllable electric connector component and a plug thereof. The
insertion and extraction force controllable electric connector component comprises the plug and a socket, wherein the front end of the plug is used as a pluggable end, and the front end of the socket is used as a pluggable end. A pluggable segment is arranged on the front portion of a plug shell, and a pluggable channel for the pluggable segment to insert is arranged on the front portion of the socket shell. A
steel ball is further arranged on the socket shell, and a locking cap capable of moving back and forth is arranged on the plug shell. Locking grooves for the
steel ball to be clamped in are formed in the inner wall face of the locking cap, and a push spring is arranged between the plug shell and the locking cap in an ejecting mode. The push spring pushes the locking cap backwards, and a sliding groove corresponding to the
steel ball is formed in the outer
peripheral face of the pluggable segment of the plug shell. The front end of the sliding groove penetrates through the front end face of the pluggable segment, and a step face is formed on the rear end wall of the sliding groove. The step face is used for blocking the steel ball when the steel ball and the corresponding locking grooves are staggered front-back, and the steel ball can cross the step face backwards when the steel ball is clamped into the corresponding locking grooves. By means of the
insertion and extraction force controllable electric connector component and the plug thereof, the problem that insertion and extraction force of an existing direct-plugging type electric connector component is uncontrollable is solved.