Electric connector and plug, socket and shielding contact element thereof

The invention discloses an electric connector and a plug, a socket and a shielding contact piece thereof, the electric connector comprises a plug shell, the plug shell is provided with a locking pressing rod, the locking pressing rod is provided with a mounting shaft, and the mounting shaft can enable the locking pressing rod to rotate around the mounting shaft; a clamping groove II is formed in one end of the locking pressing rod and used for being matched with a locking structure of an adaptive socket in a stopping mode so as to achieve locking of the plug and the adaptive socket. And a pressing handle is arranged at the other end of the locking pressing rod. The plug and the socket are connected through a button buckle, rapid locking and unlocking can be achieved, connection can be achieved directly through an equipment panel or a metal shell on the panel, and shielding continuity is achieved. 本发明公开一种电连接器及其插头、插座、屏蔽接触件，包括插头壳体，所述插头壳体上设置有锁紧压杆，所述锁紧压杆上设置有安装轴，所述安装轴能够使锁紧压杆绕其旋转；所述锁紧压杆的一端形成有卡槽Ⅱ，卡槽Ⅱ用于与适配插座的锁紧结构止挡配合，