Drilling device for geotechnical engineering investigation
US12196080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2023 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Jun 12, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B11/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling device for geotechnical engineering investigation is provided, including an outer supporting ring seat, where a center of the outer supporting ring seat is rotatably connected with a middle supporting ring seat through a first supporting shaft rod; a center of the middle supporting ring seat is rotatably connected with an inner supporting ring seat through a second supporting shaft rod; the first supporting shaft rod and the second supporting shaft rod are vertically crossed; a second rotating motor is fixedly installed at one end of the first supporting shaft rod on an outer surface of the outer supporting ring seat; a pow output end of the second rotating motor is fixedly connected with the first supporting shaft rod, an other end of the first supporting shaft rod is provided with a first locking mechanism for position limitation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.