发明名称 |
DRILL HEAD LOCKING APPARATUS AND DRILL HEAD |
摘要 |
A drill head locking apparatus and a drill head. The locking apparatus comprises: a flange (1) having a through hole, a bearing (8) arranged on the inner wall of a small cylinder on the flange, a locking sleeve (2) arranged over the flange, a protrusion (5) arranged on the upper part of the inner wall of the locking sleeve (2), the lower part of the inner wall of the locking sleeve (2) having a conical face (3). A spring (9) is arranged between the bottom face of the conical face (3) and an upper bottom face (10) of the flange. A pressing plate (6) is threadedly connected on the outer wall (7) of the top part of the small cylinder on the flange and presses down on the protrusion (5). A conical hole (11) is arranged in the corresponding position on the wall of the small cylinder on the flange and on the conical face (3), and a steel ball (4) is arranged in the conical hole. The drill head locking apparatus and the drill head are easy and convenient to operate, providing a firm securing effect when in locking status and improved safety. |
申请公布号 |
EP2623046(B1) |
申请公布日期 |
2015.08.05 |
申请号 |
EP20110828028 |
申请日期 |
2011.08.24 |
申请人 |
CHONGQING RUNZE PHARMACEUTICAL CO., LTD. |
发明人 |
YE, LEI;ZHOU, JIAN;FENG, HUA;LI, FEI;ZHU, HENGYANG;LI, CONGXIAO |
分类号 |
A61B17/16 |
主分类号 |
A61B17/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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