Title:
PRESSURIZING DEVICE AND ROTARY DRILLING RIG
Document Type and Number:
WIPO Patent Application WO/2023/142235
Kind Code:
A1
Abstract:
Disclosed in the present application are a pressurizing device and a rotary drilling rig. The pressurizing device comprises a winding mechanism configured to wind a steel wire rope, the end of the steel wire rope that is away from the winding mechanism being configured to be connected to a fixed base; a pressurizing pulley, the steel wire rope being configured to be wound around the pressurizing pulley; a reversing pulley block, the steel wire rope between the pressurizing pulley and the winding mechanism and/or between the pressurizing pulley and the fixed base being configured to be wound around a pulley of the reversing pulley block; and a lock assembly, the steel wire rope comprising a first steel wire rope connected to the winding mechanism, and a second steel wire rope connected to the fixed base, and the first steel wire rope being connected to and disconnected from the second steel wire rope by means of the lock assembly. The present application can solve the problems in the prior art of a power head having a limited drilling force and an external pressurizing device having many parts, a time-consuming and labor-intensive installation process and a high cost. In addition, the present application has the characteristics of having a simple structure, reliable operation, convenient operation, a time-saving and labor-saving installation process and a low cost, and meeting the application requirements of various construction methods.
Inventors:
HU LANQI (CN)
WANG HAO (CN)
ZHANG SHIPING (CN)
WANG HAO (CN)
ZHANG SHIPING (CN)
Application Number:
PCT/CN2022/080602
Publication Date:
August 03, 2023
Filing Date:
March 14, 2022
Export Citation:
Assignee:
BEIJING SANY INTELLIGENT MANUFACTURING TECH CO LTD (CN)
International Classes:
E21B19/084; B66D1/14
Foreign References:
| CN111980600A | 2020-11-24 | |||
| CN212359666U | 2021-01-15 | |||
| CN202131995U | 2012-02-01 | |||
| CN202187732U | 2012-04-11 | |||
| CN2430473Y | 2001-05-16 | |||
| US20060278400A1 | 2006-12-14 |
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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