Quick-plug waterproof electric connector used in high-speed rail train

The utility model relates to a quick-plug waterproof electric connector used in a high-speed rail train. The utility model relates to the technical field of railway vehicles, the connector comprises arubber sleeve A, a rubber sleeve B, a plug terminal A and a plug terminal B, wherein the rubber sleeve A and the rubber sleeve B are respectively sleeved on the outer sides of two connected electricwires, the plug terminal A and the plug terminal B are respectively crimped on wire cores of the two connected electric wires, and the plug terminal A and the plug terminal B are matched in a plug-inmanner so as to realize electric connection between the two electric wires; a connecting protrusion is arranged on the inner side of the end, facing the rubber sleeve B, of the rubber sleeve A, a connecting groove matched with the connecting protrusion is formed in the rubber sleeve B, and after the rubber sleeve A and the rubber sleeve B are connected in an inserted mode, the connecting protrusion is matched with the conne