Mine drill, dust suction hood and dust removal device thereof
US10895120B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 29, 2018 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Oct 29, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F5/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dust suction hood includes a tapered outer cover, a cylindrical outer cover, a tapered inner baffle plate disposed in the tapered outer cover, and a first blocking member matched with an opening in the other end of the cylindrical outer cover. A top opening of the tapered outer cover is matched with an opening in one end of the cylindrical outer cover. A side wall opening of the cylindrical outer cover serves as a dust outlet. A first gap is formed in the tapered outer cover. A first dust suction port is formed between bottom openings of the tapered inner baffle plate and the tapered outer cover. A first drill pipe connecting port is formed in the first blocking member. A drill pipe of the mine drill passes through the first drill pipe connecting port to penetrate the dust suction hood on the drill pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.