Liquid injection type reamer bit
US10914122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2020 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Aug 4, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D2277/2442
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention discloses a liquid injection type reamer bit, which comprises a drilling and reaming rod (1), a drilling tool (2) and reaming tools (3). The reamer bit is adopted to perform drilling and reaming operations respectively in a water pressure adjusting manner, has the advantages of simple structure, convenient operation, small volume, light weight, flexible and reliable technology, unified power sources for drilling and reaming, stable reaming, easy recovery of tools, and realization of reaming while drilling, greatly improves the anchoring reliability of anchor bolts, and ensures the safety of workers during underground work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.