Solvent extraction device for preparing raw material medicine

The utility model discloses a solvent extraction device for preparing bulk drugs, which comprises an extraction furnace, a driving motor and a solvent pipe are respectively arranged on the top surface of the extraction furnace close to two sides, a sliding sleeve is arranged on one side of the extraction furnace close to the upper end, and a filtering mechanism is arranged in the sliding sleeve. A first rotating rod is arranged at the bottom end of the driving motor, second rotating rods are arranged on the two sides of the first rotating rod, transmission rings are arranged on the portions, close to the upper ends, of the outer surfaces of the first rotating rod and the second rotating rods, and the same transmission belt is arranged on the outer surfaces of the three transmission rings; a group of stirring rollers II is arranged at the lower end of the outer surface of the rotating rod I, and a group of stirring rollers I is arranged at the lower end of the outer surface of the rotating rod II. According to