Marine geological sediment sampling structure

Abstract

The invention discloses a marine geological sediment sampling structure which comprises a sampling head, a sampling pipe, an extension seat, an extension pipe and a bearing seat. An annular seat is movably connected to one side of the bearing seat, a bearing plate is fixedly connected to the upper surface of the annular seat, and a balancing weight is movably connected to the upper surface of thebearing plate. The upper surface of the balancing weight is movably connected with a fixing plate, and one end of the mounting rod is fixedly connected with a lifting lug. The marine geological sediment sampling structure has the main advantages that the marine geological sediment sampling structure is provided, the negative pressure sampling structure is provided, through the arrangement of a second spring and a conical gasket, when the gasket is abraded, the conical gasket mounting badge moves upwards under the action of the second spring. Thus, a good sealing effect can be kept in the device, so that the device can form relatively stable negative pressure, the loss of a sample in the ascending process is reduced, the accuracy of the sample is improved, and the sampling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sampling equipment, in particular to a marine geological sediment sampling structure. Background technique [0002] Marine geology and geophysics research is one of the most active fields in recent decades. In terms of basic theory, the birth of the modern plate tectonic theory largely depends on the breakthroughs made in marine geology and geophysics research. Marine geology The analysis and testing of samples is an important part of marine geological work. Whether it is resource exploration or environmental assessment, it is inseparable from the analysis and testing of relevant samples. Among them, the analysis of seabed sediments is an important means of studying marine geology. Through the analysis of marine sediments The analysis can provide an important scientific basis for the laying of submarine cables and oil pipelines, the design and construction of oil drilling platforms and other marine develo...

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Problems solved by technology

[0002] Marine geology and geophysics research is one of the most active fields in recent decades. In terms of basic theory, the birth of the modern plate tectonic theory largely depends on the breakthroughs made in marine geology and geophysics research. Marine geology The analysis and testing of samples is an important part of marine geological work. Whether it is resource exploration or environmental assessment, it is inseparable from the analysis and testing of relevant samples. Among them, the analysis of seabed sediments is an important means of studying marine geology. Through the analysis of marine sediments The analysis can provide an important scientific basis for the laying of submarine cables and oil pipelines, the design and construction of oil drilling platforms and other marine development preliminary projects. The material deposited on the seabed as a medium can generally be divided into three different processes: physical, chemical and biological. Since these processes are often not carried out in isolation, sediments can be regarded as geological bodies produced by comprehensive processes, so The study of seabed sediments has great research significance, but due to the deep depth of the seabed, the traditional sampling device often has the phenomenon of sampling tube skewing and sample falling when sampling, so it is necessary to take multiple samples at the same place to ensure the accuracy of the sample. relatively accurate

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