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发明名称
牙钻的钻针装卸机构
摘要
牙钻的钻针装卸机构,即,在轴套1内,在该轴套的钻针插入端A至少套设一压缩弹簧3,在所述压缩弹簧3的远离钻针插入端A的一端,可轴向滑动地装设一弹性的钻针夹头5,该夹头具有两瓣以上的瓣状弹性夹头,并在夹头的外圆周形成楔形锥面,同时在轴套1的内壁相应地形成与所述楔形锥面相吻合的楔形锥面,所述的钻针夹头5的与其夹头端相对的一端具有一按压端B。该机构可用于高速空气涡轮牙钻等多种牙钻。其结构简单,装卸方便,夹持可靠而不需任何其它的辅助工具。
申请公布号
CN2318991Y
申请公布日期
1999.05.19
申请号
CN97227789.7
申请日期
1997.10.21
申请人
张福东
发明人
张福东
分类号
A61C3/02
主分类号
A61C3/02
代理机构
代理人
主权项
1,牙钻的钻针装卸机构,该机构具有可装插钻针的轴套(1),其特征在于,在所述的轴套(1)内,在该轴套的钻针插入端A至少套设一压缩弹簧(3),在所述压缩弹簧(3)的远离钻针插入端A的一端,可轴向滑动地装设一弹性的钻针夹头(5),该钻针夹头(5)大致为一轴状的构件,并至少在一端形成一空心轴,其空心轴的轴向开有至少两个纵向槽,以形成两瓣以上的瓣状弹性夹头,并在夹头的外圆周形成锲形锥面,同时在轴套(1)的内壁相应地形成与所述锲形锥面相吻合的锲形锥面,所述的钻针夹头(5)的与其夹头端相对的一端具有一按压端B。
地址
100037北京市西城区阜外大街14号603室
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