首页>
外国专利>
Telescopic boring tool for emplacing water pipes and cable ducts under roadway has boring head on end of telescopic drive tube inside telescopic outer tube
Telescopic boring tool for emplacing water pipes and cable ducts under roadway has boring head on end of telescopic drive tube inside telescopic outer tube
展开▼
机译:用于在巷道下安装水管和电缆导管的伸缩式镗孔工具,在伸缩式外管内部的伸缩驱动管的末端具有镗头
展开▼
页面导航
摘要
著录项
相似文献
摘要
The four-sided boring tool (18) forms part of a boring and burrowing system (1) for emplacing water pipes and cable ducts under a roadway. The boring head is mounted on the end of a telescopic drive tube (4,20) inside a telescopic outer tube (14,15). A sleeve (23) prevents turning of the telescopic outer tube. There are a coupling muff (16) and a flange (32) at the base end of the boring system. There is a bell (7) at the base with a clamping disk (2).
展开▼