Title:
IN-PIPE LOCAL DRILLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/041559
Kind Code:
A1
Abstract:
An in-pipe local drilling device, comprising a transmission flexible shaft (100), a support (200), a driving device (300), a drilling device (500), and a connecting device (600). The support (200) is circular, and is coaxially connected to the first end of the transmission flexible shaft (100); several rollers in contact with the inner wall of a pipe are arranged at the periphery of the support (200) at intervals; the driving device (300) is connected to the second end of the transmission flexible shaft (100), and transfers a torque force to the support by means of the transmission flexible shaft, so as to drive the support to move along the length direction of the pipe; the drilling device (500) and the connecting device (600) are positioned on one side of the support (200) away from the driving device; the drilling device (500) is connected to the support (200) by means of the connecting device (600). The device can convey the drilling device to a preset position to carry out local treatment on the inner surface of the pipe, without dismounting or cutting the pipe.
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Inventors:
HE JIAJI (CN)
WEN HUAPING (CN)
LIANG HUIQUN (CN)
DANG CHANGQING (CN)
XIE HAIPING (CN)
WEN HUAPING (CN)
LIANG HUIQUN (CN)
DANG CHANGQING (CN)
XIE HAIPING (CN)
Application Number:
PCT/CN2017/110023
Publication Date:
March 07, 2019
Filing Date:
November 08, 2017
Export Citation:
Assignee:
GUANGZHOU SHIPYARD INT CO LTD (CN)
International Classes:
B23B41/00; B23B47/20; B23Q9/00
Foreign References:
| JP3688981B2 | 2005-08-31 | |||
| EP0001893A1 | 1979-05-16 | |||
| JPS57156153A | 1982-09-27 | |||
| CN202591738U | 2012-12-12 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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