Skin retractor

The utility model discloses a skin retractor, which relates to the technical field of surgical instruments and comprises an adjusting cylinder, the bottom of the outer wall of the adjusting cylinder is communicated with a transmission cylinder, the two sides of the inner wall of the transmission cylinder are rotatably provided with expansion plates through rotating shafts, and the ends, close to each other, of the expansion plates extend to be provided with arc-shaped gears. According to the skin retractor, the skin can be stably retracted through the expansion plate, the arc-shaped gear, the driven gear and the lead screw, a drag hook of the expansion plate is narrow, the skin retractor is suitable for percutaneous tracheotomy of a small incision and a small visual field range, a handle can be operated and kneaded with one hand, and opening and closing of the handle part can be adjusted according to the incision requirement. Through the driving sliding block, the extrusion rod, the limiting gear, the limitin