Corrosion-resistant high-strength rotary joint

The invention relates to the technical field of fluid loading and unloading, and particularly discloses a corrosion-resistant high-strength rotary joint which comprises an outer ring and an inner ring, double rows of raceways are arranged in the outer ring, ball mounting holes matched with balls are formed in the double rows of raceways, threads are arranged in the ball mounting holes, and the ball mounting holes are in threaded connection with plugs. The outer side of the inner ring is provided with double rows of raceways, the inner ring is connected with the outer ring through balls, one side of the raceway of the inner ring is provided with a first annular groove provided with a second O-shaped ring, and the other side of the raceway of the inner ring is provided with a second annular groove provided with a third O-shaped ring. The sealing performance of the corrosion-resistant high-strength rotary joint is improved, the rotary joint rotates more flexibly, abrasion of a sealing piece is reduced, the balls