| 主权项 |
1. A returning device of a wrench tool comprising:
a body including a tool segment disposed on at least one end portion thereof, and the tool segment having two jaws, an engaging face of at least one of the two jaws including a recessed section in which a receiving groove is formed in a cylinder shape, and the receiving groove having a stop rim, the stop rim of the receiving groove including a slot defined on an eccentric position thereof; an auxiliary retainer inserted in the receiving groove of the body and having a retaining portion defined on a frond end thereof, the auxiliary retainer being formed in a circular column shape; a positioning shaft including a front end connected at an eccentric position of a rear end of the auxiliary retainer and including a rear end extending out of the slot of the body and allowing to prevent the auxiliary retainer from disengagement from the receiving groove of the body; a resilient element used to push the auxiliary retainer so that the retaining portion of the auxiliary retainer elastically extends out of the recessed section of the at least one of the two jaws of the body; wherein a central axis of the receiving groove is parallel to a central axis of the slot of the stop rim of the receiving groove, and the slot is defined on the eccentric position of the stop rim of the receiving groove, such that the auxiliary retainer, formed in the circular column shape, slides and does not rotate in the receiving groove. |
