Sampling assembly and sampler

Abstract

The present invention relates to a sampling assembly and a sampler, and belongs to the field of equipment for environmental scientific research. A purpose of the present invention is to extract a sediment sample and reduce error during sample layering. The main technical scheme is that the sampling assembly comprises a hollow cylinder, a plurality of dividing units, a supporting sheet and a pushing rod, wherein the hollow cylinder is vertically inserted into a sediment and extracts a sediment, the dividing unit has a ring shape matched to the cavity of the hollow cylinder and has a predetermined thickness, the total thickness of the plurality of the dividing units is the same as the height of the hollow cylinder, the plurality of the dividing units are sequentially and adjacently placed into the hollow cylinder and are used for bearing the sediment, the external shape of the supporting sheet is the same as the external shape of the dividing unit, the external size of the supporting sheet is the same as the external size of the dividing unit, the supporting sheet is arranged at the lowermost end of the plurality of the dividing units and is used for supporting, the cross-section shape of the first end of the pushing rod is the same as the shape of the supporting sheet, and by pushing the supporting sheet, the dividing units are pushed out from the hollow cylinder.

Description

technical field [0001] The invention relates to the field of equipment used for environmental science research, in particular to a sampling component and a sampler. Background technique [0002] In the study of environmental science, the study of the environment of lakes has always been one of the important topics, and the study of the environment of lakes plays an important role in controlling the ecological environment around lakes. [0003] At present, the internal source of sediment is one of the important reasons affecting the eutrophication of lakes, so the migration and transformation of nutrients at the water-sediment interface is particularly important for the study of the mechanism of eutrophication in lakes. And to the research of sediment, need researcher to carry out vertical sampling to sediment at the lake site, the sampling part of the sampler commonly used in the prior art is sampling tube, is to directly insert sampling tube in the sediment during use, then...

AI Technical Summary

Problems solved by technology

[0004] But, in the process that the inventor realizes the present invention, the inventor finds that existing samplers have the following defects in use: the sampling tube of the existing samplers is a through pipe, and since the deposits are mainly relatively soft substances, Therefore, after taking the sediment samples, it is easy to compress the vertically extracted sediments during the process of pushing out the sediments. In this way, when studying the sediment samples in layers, the error of the layered samples is particularly large, and accurate data information cannot be obtained.

Images