公开(公告)号：US3952818A

公开(公告)日：1976-04-27

申请号：US521628

申请日：1974-11-07

申请人： Terence George Jasper

发明人： Terence George Jasper

IPC分类号： E21B7/00 ,  E21B10/32 ,  E21B9/26

CPC分类号： E21B7/003 ,  E21B10/32

摘要： A grooving bucket for forming grooves or bells in the ground around a previously drilled hole to allow casting of a concrete pile, the grooving bucket consisting of a cylindrical bucket portion fitted at the upper end with a boot or connecting box to fit the appropriate drilling machine kelly bar. Pivoted cutter arms protrude from each side of the bucket and are held in the horizontal or cutting position preferably by heavy duty tension springs. The cutters are hollow or channeled and are angled to cut a groove or bell in the ground on rotation of the bucket and to lead spoil or rock cuttings into the interior of the bucket. The bucket may be provided with a bottom hinged door to facilitate removal of spoil from inside the bucket.

摘要翻译： 一个开槽铲斗，用于在先前钻孔的地面上形成槽或铃，以允许铸造混凝土桩，该槽铲由一个圆柱形铲斗部分组成，该桶形部分在上端安装有靴子或连接箱，以适应适当的钻孔机 凯利酒吧 枢轴切割臂从铲斗的两侧突出并且优选地通过重型拉伸弹簧保持在水平或切割位置。 切割器是中空的或引导的，并且成角度以在铲斗的旋转时在地面上切割凹槽或钟，并且将破坏物或岩屑引入桶的内部。 铲斗可以设置有底部铰链门，以便于从铲斗内部去除破坏物。