| 摘要 |
本发明系关于一种棘轮扳手，包含有：一本体，设有一容槽；一驱动件，设于该容槽中，沿外周面设有一第一卡掣部；一制动件，系设于该容槽中且设有一与该第一卡掣部相卡掣之第二卡掣部，该第二卡掣部系可限制该驱动件之转动方向；一切换组件，可活动地设于该本体，包括一设于该容槽中之第一端部及至少一伸出该本体外而供操作之第二端部，该第一端部径向地设有一第一容孔及一第二容孔；一弹抵组件，包括一第一弹性件及一抵块，该第一弹性件之一端于该第一容孔中抵止于该切换组件、另一端与该抵块抵接，该抵块与该制动件互相限位地相抵接，并弹顶该制动件朝向该第一卡掣部；一定位机构，包括一第一定位部及一第二定位部，该第一定位部系设于该本体且包括一第一凹槽及一第二凹槽，该第二定位部包括一第二弹性件及一顶销，该第二弹性件之一端系于该第二容孔中抵止于该切换组件、另一端与该顶销抵接，藉由调整该切换组件能使该顶销与该第一或第二凹槽相互定位并保持该制动件与该第一卡掣部相卡掣之位置。; a driving member, disposed in the receiving groove and formed with a first stuck portion around an outer circumferential surface; a restricting member, disposed in the receiving groove and formed with a second stuck portion engaging with the first stuck portion, the second stuck portion limiting a rotating direction of the driving member; a switching assembly, movably assembled on the body, including a first end portion disposed in the receiving groove and at least one second end portion disposed outside the body for operating, the first end portion is radially formed with a first receiving hole and a second receiving hole; an elastic abutting assembly, including a first elastic member and a abutting block, an end of the first elastic member abutting against the switching assembly in the first receiving hole and the other end abutting against the abutting block, the abutting block and the restricting member abutted against each other limitedly, and the restricting member abutted towards the first stuck portion; a positioning mechanism, including a first positioning portion and a second positioning portion, the first positioning portion disposed on the body and including a first concave groove and a second groove, the second positioning portion including a second elastic member and a pin, an end of the second elastic member abutted against the switching assembly in the second receiving hole and the other end abutted against the pin, the pin positioned on the first or second concave grooves through adjusting the switching assembly and keeping a position where the restricting member engaging with the first stuck portion. |
