Auxiliary infusion port needling device

The utility model discloses an auxiliary infusion port needling device which comprises a bottom ring, the bottom end of the bottom ring is connected with a rubber pad, the upper end of the bottom ring is connected with two symmetrically-distributed supporting plates, and the outer walls of the supporting plates are connected with sliding plates in a sliding mode. The cambered surfaces of the two pressing grooves can press the needle head, the surfaces of the two pressing blocks press the connecting piece, at the moment, the connecting rod slides to the lowest end of the sliding groove, the end opening of the needle head is flush with the ground of the bottom plate, the two pressing blocks and the pressing grooves can tightly press the needle head through the elastic force of the spring, the needle head is prevented from shaking at will, and the rotating shaft is rotated to drive the two gears to rotate. The gear drives the rack to move downwards, the rack drives the sliding plate to move downwards, the slidin