Abstract: The present invention discloses a safe electrical connector that has a replaceable interface, the electrical connector comprises a plug assembly and a socket assembly, wherein the plug assembly comprises a plug housing and a plug core connecting wire fixing body, the plug housing is internally provided with plug core accommodating cavities, and there are a plurality of plug core accommodating cavities; an existing plug core may be detachably mounted inside of a plug core accommodating cavity, and a connecting wire of the existing plug core penetrates from an upper end of the plug housing; the plug core connecting wire fixing body fixes the connecting wire on the plug housing; the socket assembly comprises a socket housing, the socket housing is internally provided with plug core female end accommodating cavities, and the plug core female end accommodating cavities are adapted to the plug core accommodating cavities.

Abstract: The present invention discloses an industrial connector and a connecting structure. The industrial connector comprises a holder and a plug matingly connected to the holder, wherein the holder comprises: a hollow connecting cylinder; a connecting base fixed around an opening of the connecting cylinder; a buckle plate and an elastic component fixed within the connecting base, with buckles embedded into the connecting cylinder being provided on the buckle plate; and an elastic component which is connected to the buckles and used for driving the buckle plate to translate along the plane of the opening. The industrial connector provided by the present invention is easy to mount and reliable in connection.