High-stability quick-connection type iron connector

The high-stability quick-connection type iron connector comprises a connector body and a connecting port, the connector body is composed of a plug end, a limiting end and a connecting pipe end, four square grooves are formed in the outer wall of the plug end, square clamping blocks are installed in the square grooves, pressure springs are arranged between the square clamping blocks and the bottoms of the square grooves, and the pressure springs are connected with the limiting end and the connecting pipe end. The connecting opening and the mounting disc are integrally formed, four square clamping grooves are formed in the connecting opening along the inner wall in a circle, through holes penetrating through the square clamping grooves are formed in the connecting opening, and the square clamping blocks correspond to the square clamping grooves and are matched with the square clamping grooves in size. During connection and use, after the plug end is fully inserted into the connecting port, the square clamping b