a force to push the materials to be cleaned application_number US 201414264964 A description what is described in the embodiment is a washing machine for realizing the objective of the present invention in which the structure and the operational mode of u s pat no 6 220 063b1 is shown in fig1 including a control panel 10 a house 13 a damping suspender 14 for outer tub 12 suspended in the house 13 the inner tub 11 being rotatably provided within the outer tub 12 wherein the inner tub 11 and the pulsator 17 are driven by the motor 15 and the reduction gear train during the use laundries are put into the inner tub 11 through the inlet or the movable cover 19 together with a certain amount of washing fluid water and detergent in u s pat no 6 220 063b1 it is known that two pulsators slantedly located are used its main shortcoming is that laundries can roll only in one rolling surface however the drum washing machine of the prior art have the same shortcoming another shortcoming is that if it is necessary to roll much more laundries the pulsator should be made larger according to the above documents and the real washing machine the pulsator has a diameter nearly the same to the height of the inner tub and if small amount of laundries are to be washed the rolling effect is very bad since it is.