Universal multisubstrate profile spiral injection type columnar sampler

Abstract

The invention relates to a sampler, in particular to a universal multisubstrate profile spiral injection type columnar sampler which is provided with a sampling tube, a handle, a rotary shaft, a locking ring, a toothed end surface, an end cover, a non-return blade and a spiral blade, wherein a scale for indicating sampling depth is carved on the inner wall of the sampling tube; the sampling tube consists of two half columns; the two half columns are fixed by the locking ring, one of the half columns is detachable, which is convenient for observing and collecting samples; the sampling tube is detachable and is provided with the toothed end surface; the handle is fixed to the top of the rotary shaft; the rotary shaft is arranged in the sampling tube; the end cover is arranged on the top of the sampling tube; the non-return blade is installed on the end of sampling tube; and the spiral blade is fixed below the non-return blade. By adopting an inner spiral injection type, the the sampler can be used for sampling under the multisubstrate conditions, such as mud, sand, detritus and the like., has the advantages of self-sealing function, rapid and convenient sampling, no leakage of samples, and easy separation of samples, sampling depth can be observed and profile samples can be efficiently obtained.

Description

technical field [0001] The invention relates to a sampler, in particular to a general-purpose screw-pressed cylindrical sampler with multi-substrate profiles. Background technique [0002] The columnar mud extractor is a device that extracts the ground or bottom sediment of the water body in columnar form. The columnar sampler is an important sampling tool in the process of ecological environment investigation and geological exploration. The collected columnar samples can further analyze the particle size composition and material composition of sediments at all levels, and the accumulation, distribution and transformation of chemical components (especially pollutants). Scientific research on migration rules, community structure composition and distribution of benthic organisms, etc. How to obtain representative cross-sectional sediment samples in the study area conveniently, quickly, labor-savingly and completely is the prerequisite for in-depth on-site investigation and sc...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems that the existing traditional general-purpose columnar sampler cannot take into account the collection of sediments and biological samples, cannot simultaneously meet the collection of sand, mud, stone, root and other substrate environmental samples, and the assembly and disassembly are complicated, etc., to provide multi-substrate Profile Universal Screw-In Column Sampler

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