Bag washing machine capable of controlling water pressure and friction force

The invention discloses a bag washing machine capable of controlling water pressure and friction force, and relates to the technical field of bag washing machines, the bag washing machine comprises a machine body, the inner surface of the machine body is provided with a roller, the top of the machine body is fixedly connected with a liquid storage tank, the liquid outlet end of the liquid storage tank fixedly communicates with a liquid outlet pipe, the lower end of the liquid outlet pipe fixedly communicates with a U-shaped pipe, and the two ends of the U-shaped pipe are rotatably connected with spraying pipes; a bag washing machine capable of controlling water pressure and friction force comprises a swing spraying mechanism and an anti-precipitation mechanism, through reciprocating rotation of a spraying pipe, the spraying angle of the spraying pipe is increased when the spraying pipe sprays, and therefore the water pressure and the friction force can be controlled. The conditions that the areas on the two s