Mounting structure between spraying arm and spraying seat and dish washing machine

The invention provides a mounting structure between a spraying arm and a spraying seat. The mounting structure is arranged between a power spraying arm and the spraying seat. A mounting joint is arranged on the spraying seat, a rotating joint is arranged on the power spraying arm, and the rotating joint can be correspondingly inserted into the mounting joint in a manner of rotating around a shaft; at least one circle of limiting ring protruding in the radial direction is arranged on the outer wall of the rotating connector, and the periphery of the limiting ring is in attached contact with the inner wall of the rotating connector. At least one circle of limiting ring protruding in the radial direction is arranged on the outer wall of the rotating connector, so that the rotating connector is in limiting contact with the mounting connector through the limiting ring, the contact area of the spraying base and the spraying arm is reduced, and friction generated when the spraying arm rotates is reduced; in addition