Integrated piling tool with continuous drilling and circulation pouring
US11873689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2021 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Aug 1, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D5/46
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An integrated piling tool with continuous drilling and circulation pouring includes a power connector, a circulation device, a drill assembly, a bottom clearing and a pouring mechanism. The circulation device includes a circulating drill barrel and a spiral piece, and it achieves cuttings removal continuously; the two ends of the circulating drill barrel are connected with the power connector and the drill assembly, respectively. The drill assembly includes a drill body, a connecting sleeve B, transmission parts, a drill tool holder and drilling teeth, and the drill assembly accomplish rock breaking and rotary excavation. The clearing mechanism includes a linkage and clearing blades to remove cuttings at bottom hole. The pouring mechanism includes pouring channels and control parts to achieve continuous concrete pouring. The invention provides a new integrated piling tool with continuous drilling and circulation pouring, which improves the efficiency of piling, circulation and pouring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.