Sampler for undisturbed soil

Abstract

The invention discloses a sampler for undisturbed soil, and belongs to the technical field of soil sampling. The sampler comprises a rotating handle, sample storage barrels and a sampling drill bit, wherein the bottom end of the rotating handle is connected with a sample storage barrel mounting base; the sample storage barrels are mounted in the sample storage barrel mounting base; the sampling drill bit is detachably connected to the bottom end of the corresponding storage sample barrel; a plurality of the sample storage barrels are arranged; the plurality of the sample storage barrels are detachably connected up and down in sequence; the sampling drill bit is arranged at the bottom end of the bottommost sample storage barrel. The plurality of the sample storage barrels are arranged; through adjusting the quantity of the sample storage barrels, a length of the whole sampler can be adjusted; the soil at a different depth can be sampled; the stratified sampling is realized; the sample storage barrels can also have different lengths; the length of the sampler can be more flexibly adjusted, and the stratified sampling can be further better realized.

Description

technical field [0001] The invention relates to the technical field of soil sampling, in particular to an undisturbed soil sampler. Background technique [0002] The collection of soil samples is a basic work of scientific researchers engaged in agricultural research, and it is also an important part of soil testing. In recent years, my country has gradually begun to conduct in-depth research on the collection of soil information. [0003] At present, the commonly used soil collection methods can be divided into manual collection and mechanized collection. Mechanized collection equipment is complex and expensive; manual collection is usually collected with a columnar sampler, which is driven by the handle rotation or impacted by a heavy hammer to make the sampler vertically inserted into the soil. , and then the soil sample enters the sampling head, and then the soil sampler is directly lifted out of the soil or the sample head is taken out by turning the handle in reverse, ...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used soil collection methods can be divided into manual collection and mechanized collection. Mechanized collection equipment is complex and expensive; manual collection is usually collected with a columnar sampler, which is driven by the handle rotation or impacted by a heavy hammer to make the sampler vertically inserted into the soil. , and then the soil sample enters the sampling head, then lift the soil sampler directly out of the soil or take out the sample head by turning the handle in the opposite direction, and finally push the sample out of the sampling head

However, when the columnar sampler is applied to take soil from a columnar soil sample with a slightly larger soil depth, the accuracy of the sampling depth cannot be guaranteed, and soil columnar sample collection cannot be realized.

At the same time, when taking out the sample head, when the sampling depth is large, it is difficult to directly lift the sample head, and the simple reverse rotation of the handle is easy to damage the threaded interface

Also, when sampling sandy or loose soils, it can be difficult to ensure that the soil sample remains completely within the sampler

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