The present disclosure discloses a sealing valve plug structure includes a valve plug column corresponding to the drain opening formed in the side wall of the inner drum, and a counterweight hinged to the upper end of the valve plug column, a sealing valve installation structure is fixedly installed on the side wall of the inner drum, and the reset spring is clamped between the sealing valve installation structure and the valve plug column. The valve plug structure mentioned above is installed on the inner drum, the counterweight can be used to generate an action, under the action of centrifugal force, to correspondingly open the drain opening, and the valve plug column can further be reset by the reset spring to make the valve plug correspondingly block the drain opening. In this way, the centrifugal force under the high-speed rotation of the drum is used to act on the valve plug column to correspondingly open and close the drain opening. A cleaning-free washing machine is disclosed, an inner drum of the washing machine is a sealed container after a drum opening is fastened and sealed by a door cover, a side wall of the inner drum is provided with at least one lifting rib, a drain opening communicated to a hollow part of the lifting rib is formed in the side wall of the inner drum, the drain opening is provided with a sealing valve inside the lifting rib, and the sealing valve comprises the sealing valve plug structure.