Tissue retraction and exposure drag hook

The utility model discloses a tissue retracting and exposing retractor which comprises a fixed base, a vertically-distributed sliding rod frame is installed at the upper end of the fixed base in a sliding mode, a horizontally-distributed movable cylinder is fixedly installed on the sliding rod frame, a sliding sleeve is installed on the outer wall of the circumference of the movable cylinder in a sliding mode, and a connecting rod is fixedly installed on the outer wall of the circumference of the sliding sleeve. A ball sleeve is fixedly mounted at the tail end of the connecting rod, a movable ball is slidably mounted in the ball sleeve, a drag hook rod is fixedly mounted in the movable ball, a drag hook end is arranged at the tail end of the drag hook rod, a threaded push rod is rotatably mounted in the movable cylinder, and a threaded positioning block is slidably mounted on the circumferential inner wall of the movable cylinder. The threaded push rod is in threaded connection with the threaded positioning b