Movable towing hook

The utility model relates to a movable towing hook which is used for being connected with a bracket, a main arch wire is arranged on the bracket in a penetrating mode, and the towing hook comprises a stress arm and three retention short arms fixed to one end of the stress arm. A vertical pipe is arranged at the bottom of the bracket, the retention short arm located in the middle extends into the bracket and is inserted into the vertical pipe, the two retention short arms located on the two sides abut against the two sides of the bracket respectively, and the ends, away from the retention short arms, of the force bearing arms are connected with anchorage teeth through rubber chains. And the bonding accuracy is not influenced when the bracket is initially bonded. 本实用新型涉及一种活动牵引钩，用于与托槽连接，所述托槽上穿设有主弓丝，所述牵引钩包括受力臂和固定在受力臂一端的三根固位短臂；所述托槽底部设有垂直管，位于中间的固位短臂伸入托槽内并插入垂直管，位于两侧的两固位短臂分别紧抵在托槽两侧，所述受力臂远离固位短臂一端通过橡皮链与支抗牙连接，本实用新型的牵引钩与托槽之间为可拆卸式分体设计，使得托槽在初始粘结的时候不影响粘结的准确性。