Tension traction bow

The utility model relates to a tension traction bow which comprises a pair of bow arms which are symmetrically arranged, and the tail end of each bow arm is provided with a connecting part connected with a bone needle. The connecting arm is rotatably connected with the front end of each bow arm; the pair of tension arms is symmetrically arranged at the part, close to the front end, of the bow arm, and one end of each tension arm is rotatably connected to the bow arm; the two ends of the adjusting mechanism are movably connected with the other ends of the pair of tension arms respectively, and the adjusting mechanism is used for adjusting the pair of tension arms to move in the opposite direction or the reverse direction. According to the tension traction bow disclosed by the utility model, the tension arm can be conveniently adjusted by arranging the adjusting mechanism, so that the tension of the traction bow is adjusted. By adopting the ratchet wrench capable of rotating in two directions, the tension of th