Adjusting hand wheel for hydraulic valve

The utility model discloses an adjusting hand wheel for a hydraulic valve. Fine raised grains are arranged on an outer wall of a hand wheel body; a connecting cylinder is arranged at the upper end of the hand wheel body; a vertical through hole is arranged in the middle of the connecting cylinder; a stair is arranged in the vertical through hole; an annular slot is arranged on the outer wall of the connecting cylinder; a chamfer is arranged at the outer edge at the top of the connecting cylinder; the hand wheel body is a cylinder; rough raised grains are polished on the outer wall of the hand wheel body; and a smooth surface is arranged on the outer wall of the annular slot. According to the adjusting hand wheel for the hydraulic valve, the rough raised grains are polished on the outer wall of the hand wheel body, so that the adjusting hand wheel is tightly combined with the hydraulic valve while the frictional force is greatly increased; due to the structure of the annular slot arranged on the connecting cyl