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Title:
SYSTEM AND METHOD FOR CONTROLLING AND DRIVING GANGWAY
Document Type and Number:
WIPO Patent Application WO/2019/041420
Kind Code:
A1
Abstract:
A system and method for controlling and driving a gangway. The system comprises a power motor (1) driving a gangway turning device to put back or use a gangway (10) by means of forward or reverse rotation; an operating valve (2) used for controlling the inflow and outflow directions of a working medium to implement the forward and reverse rotation of the power motor so as to put back or use the gangway; and a control device comprising a limit valve (3) and a stop valve (4), the control interface of the limit valve being connected to that of the stop valve, and the stop valve being provided on a control and drive loop between the power motor and the operating valve and being used for controlling the connection or disconnection of the control and drive loop. Pressure of the gangway on the valve rod (31) of the limit valve during the process of putting back the gangway in place changes the valve position of the limit valve, so as to control the stop valve to cut off the transportation loop of the working medium of the power motor, so that the power motor stops putting back the gangway to prevent the impact on the use safety and service life of the gangway due to damage to the structure of a cable or gangway caused by tightening of the cable connected to the gangway by continuous rotation of the power motor after the gangway is put back in place.

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Inventors:
BAO, Lin (1FNo. 68, The Pearl River Management Area West Road Nansha Distric, Guangzhou City Guangdong 2, 511462, CN)
ZENG, Yunxian (1FNo. 68, The Pearl River Management Area West Road Nansha Distric, Guangzhou City Guangdong 2, 511462, CN)
XIAO, Fanglong (1FNo. 68, The Pearl River Management Area West Road Nansha Distric, Guangzhou City Guangdong 2, 511462, CN)
XIA, Luogeng (1FNo. 68, The Pearl River Management Area West Road Nansha Distric, Guangzhou City Guangdong 2, 511462, CN)
WANG, Dahao (1FNo. 68, The Pearl River Management Area West Road Nansha Distric, Guangzhou City Guangdong 2, 511462, CN)
Application Number:
CN2017/104152
Publication Date:
March 07, 2019
Filing Date:
September 29, 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 City Guangdong 2, 511462, CN)
International Classes:
B63B27/14
Foreign References:
CN102001421A2011-04-06
CN101169145A2008-04-30
JPS5618437B21981-04-28
CN1546350A2004-11-17
CN105460170A2016-04-06
CN206108760U2017-04-19
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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