NOVEL DISTURBANCE-FREE MARINE SEDIMENT SAMPLING TOOL

WIPO Patent Application WO/2023/221811

A1

A novel disturbance-free marine sediment sampling tool, comprising an outer cylinder (2), an inner cylinder (1), a turnover lever assembly (3) and a petal assembly (4). When the sampling tool is moving downwards, the petal assembly (4) is clamped by utilizing an upward acting force of water flow and sediments on the turnover lever assembly (3), so as to keep the petal assembly (4) in an open state during the whole sampling process. When the sampling is completed and the sampling tool starts to be lifted upwards, the petal assembly (4) is pried by utilizing a downward acting force of the sediments on the turnover lever assembly (3), so as to close the petal assembly (4). The sampling tool utilizes the natural resistance of water flow and sediments, etc., and by means of the linkage of the turnover lever assembly (3) and the petal assembly (4), the problem of disturbance and resistance generated by the petal assembly (4) on sediment sampling is effectively solved, and the sampling efficiency is improved while leakage of the sediment sample is effectively blocked.

ZHONG FUCHANG (CN)
XIANG RONG (CN)
XU KE (CN)
YANG YIPING (CN)
LI XIANPENG (CN)
YU LINGHUI (CN)
YANG ZHOU (CN)
QI YONGFENG (CN)
XING HUANLIN (CN)
ZHONG WANXUAN (CN)
YANG YING (CN)
MAO HUABIN (CN)
YAN SHENGFU (CN)

PCT/CN2023/092938

November 23, 2023

May 09, 2023

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SOUTH CHINA SEA INST OCEANOLOGY CAS (CN)

G01N1/08

CN115901340A	2023-04-04
CN107677500A	2018-02-09
CN111795857A	2020-10-20
CN112834273A	2021-05-25
CN203381783U	2014-01-08
CN212110626U	2020-12-08
CN212159145U	2020-12-15
US20110179888A1	2011-07-28

GUANGZHOU KEYUE I.P. LAW OFFICE (CN)

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