Buckle self-locking circuit connector

The utility model discloses a buckle self-locking circuit connector, which belongs to the technical field of electric connectors and comprises a connecting seat and a socket, a fixing column is rotatably connected in the connecting seat, a limit block is fixedly mounted at the bottom end of the fixing column, and a buckle base is fixedly mounted on the surface of the socket at a position corresponding to the fixing column. The buckle base is internally and fixedly provided with fixing buckles with the same number as the limiting blocks, the surface of the fixing column is slidably connected with a fixing sleeve, the buckle base is internally provided with a clamping groove, the fixing sleeve is attached to the clamping groove, and when the connecting base is inserted into a socket, the limiting blocks on the surface of the fixing column enter along the clamping groove; the fixing column is rotated by 60 degrees clockwise or anticlockwise, the limiting block is completely matched with the fixing buckle in the