Title:
EARTH LIFTING DEVICE FOR DRILLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/178857
Kind Code:
A1
Abstract:
An earth lifting device for a drilling system comprises a drilling unit (300). The drilling unit (300) comprises a fixing device, an excavating device, a water transport device and a mud transport device. The excavating device, the water transport device and the mud transport device are provided on the fixing device. The excavating device comprises a pilot bit (11), and an earth excavating blade (12) and an earth lifting gear (13) are provided on the pilot bit (11). The mud transport device comprises an earth collector (21), a mud lifting pump (22) and a mud outlet pipe (23), the earth collector (21) is provided on the body of the pilot bit (11), a mud stirring bin (24) is provided on the earth collector (21), and the mud lifting pump (22) is provided within the mud stirring bin (24). The advantageous effects of the present earth lifting device are that: mud can be simultaneously transported while excavating, and the speed is fast; the excavating process does not cause large-area water erosion on the excavating operation surface, does not affect the stress structure of the soil, and is not easy to cause accidents such as a collapse, meanwhile the device has a compact structure, a small volume and a light weight; and the device can accurately excavate small pits.
Inventors:
HAN XINGFENG (CN)
Application Number:
PCT/CN2018/080296
Publication Date:
September 26, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
SHENZHEN HIGHFENG TECH CO LTD (CN)
International Classes:
E21D9/10; E02D5/34; E21B21/00
Foreign References:
| CN206545511U | 2017-10-10 | |||
| CN205503059U | 2016-08-24 | |||
| CN207260136U | 2018-04-20 | |||
| CN205422528U | 2016-08-03 | |||
| CN101851919A | 2010-10-06 | |||
| CN206429211U | 2017-08-22 | |||
| US20060060385A1 | 2006-03-23 |
Attorney, Agent or Firm:
SZ KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
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