Large-current insertion piece connector

The utility model discloses a large-current insert connector which comprises a connecting row plate, two sides of the connecting row plate are respectively provided with a current inserting column in a clamping manner, a half clamping ring A is arranged between the current inserting columns and the connecting row plate in a matching manner, the front end of the half clamping ring A is provided with a half clamping ring B in a matching manner, and the middle parts of two sides of the half clamping ring A are fixedly welded with positioning blocks. Inserting grooves are fixedly formed in the middles of the two sides of the half clamping ring B. Movable grooves are fixedly formed in the two sides of the lower portion of the half clamping ring A and the two sides of the lower portion of the half clamping ring B. Matching cavities are fixedly formed in the lower ends of the movable grooves, movable cavities are fixedly formed in the two sides of the matching cavities, and extension springs are arranged in the mova