Three-pole socket waterproof structure and three-pole socket

The utility model discloses a three-pole socket waterproof structure and a three-pole socket. The waterproof structure of the three-pole socket comprises a cover plate; the protection doors comprise a first protection door, a second protection door and a third protection door; the elastic waterproof part comprises a first elastic waterproof part and a second elastic waterproof part, the first elastic waterproof part is provided with a first through hole and a second through hole, the second elastic waterproof part is provided with a third through hole, and the first through hole and the second through hole are shielded by the first protection door and the second protection door. And the third protection door shields the third through hole. By arranging the first protection door and the second protection door to shield the first through hole and the second through hole and arranging the third protection door to shield the third through hole, the protection doors can perform preliminary water prevention and the