Title:
MINING DRILL AND DUST SUCTION COVER THEREFOR, AND DUST REMOVAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/144662
Kind Code:
A1
Abstract:
Disclosed are a mining drill and a dust suction cover therefor, and a dust removal device. The dust suction cover (1) comprises: a conical cover (10) and a cylindrical cover (20), wherein a top opening of the conical cover (10) matches an end opening of the cylindrical cover (20), a side wall opening of the cylindrical cover (20) serves as a dust outlet of the dust suction cover (1), and first notches are provided in the conical cover (10) in the direction of the generatrix of a cone; a conical inner baffle (30), which is correspondingly arranged in the conical cover (10), wherein second notches are provided at positions, corresponding to the first notches, in the conical inner baffle (30), a bottom opening of the conical inner baffle (30) is smaller than a bottom opening of the conical cover (10), a first dust suction port (31) is formed between the bottom opening of the conical inner baffle (30) and the bottom opening of the conical cover (10), and at least one second dust collection port (32) is provided in a side wall of the conical inner baffle (30); and a first plug member (40) matching the other end opening of the cylindrical cover (20), wherein a first drill rod connection port (41) is provided in the first plug member (40), and a drill rod (2) of the mining drill passes through the first drill rod connection port (41), such that the drill rod (2) passes through the dust suction cover (1). The drill has a good dust removal effect, and is easy to operate and use.
Inventors:
YANG WEI (CN)
LIN BAIQUAN (CN)
LIN MINGHUA (CN)
JIA RU (CN)
LU CHANGZHENG (CN)
LIN BAIQUAN (CN)
LIN MINGHUA (CN)
JIA RU (CN)
LU CHANGZHENG (CN)
Application Number:
PCT/CN2018/112281
Publication Date:
August 01, 2019
Filing Date:
October 29, 2018
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
XUZHOU BOAN SCIENCE & TECH DEVELOPMENT CO LTD (CN)
XUZHOU BOAN SCIENCE & TECH DEVELOPMENT CO LTD (CN)
International Classes:
E21B21/015
Domestic Patent References:
| WO2011035377A1 | 2011-03-31 |
Foreign References:
| CN108266141A | 2018-07-10 | |||
| CN203879428U | 2014-10-15 | |||
| CN206376771U | 2017-08-04 | |||
| CN202788917U | 2013-03-13 | |||
| CN203188947U | 2013-09-11 | |||
| SU1499056A1 | 1989-08-07 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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