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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.

Inventors:
HE, Jiaji (1FNo. 68, the Pearl River Management Area West Road Nansha Distric, Guangzhou Guangdong 2, 511462, CN)
WEN, Huaping (1FNo. 68, the Pearl River Management Area West Road Nansha Distric, Guangzhou Guangdong 2, 511462, CN)
LIANG, Huiqun (1FNo. 68, the Pearl River Management Area West Road Nansha Distric, Guangzhou Guangdong 2, 511462, CN)
DANG, Changqing (1FNo. 68, the Pearl River Management Area West Road Nansha Distric, Guangzhou Guangdong 2, 511462, CN)
XIE, Haiping (1FNo. 68, the Pearl River Management Area West Road Nansha Distric, Guangzhou Guangdong 2, 511462, CN)
Application Number:
CN2017/110023
Publication Date:
March 07, 2019
Filing Date:
November 08, 2017
Export Citation:
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Assignee:
GUANGZHOU SHIPYARD INTERNATIONAL COMPANY LIMITED (1FNo. 68, the Pearl River Management Area West Road Nansha Distric, Guangzhou Guangdong 2, 511462, CN)
International Classes:
B23B41/00; B23B47/20; B23Q9/00
Foreign References:
JP3688981B22005-08-31
EP0001893A11979-05-16
JPS57156153A1982-09-27
CN202591738U2012-12-12
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (F6 Xijin Centre, 39 Lianhuachi East Rd.Haidian District, Beijing 6, 100036, CN)
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