Combined soil sampler capable of sampling in layering manner

Abstract

The invention discloses a combined soil sampler capable of sampling in a layering manner. The combined soil sampler comprises a top cover, more than two cylinders and a sampling head, wherein each cylinder comprises an outer cylinder and an inner cylinder; each outer cylinder is divided into two half bodies along the middle axis; each inner cylinder is closely attached to the inner wall of the corresponding outer cylinder; each two half-bodies are connected to form a whole body through a connection clip; the top cover and the cylinders are in threaded connection; the various cylinders are in threaded connection; the cylinders and the sampling head are in threaded connection; the two parts in threaded connection are also fastened through a movable buckle; an air hole is formed in the top cover; a horizontal rotary handle is arranged on the side wall of the top cover. According to the invention, a plurality of detachable cylinders are combined, and thus pollution caused by the fact that a soil sample is in contact with a sampling cylinder during multiple times of sample collecting, and loss and pollution caused by transferring the cylinder into other containers again are avoided; in addition, because a sample is cylindrically packaged in the inner sampling cylinders, the possibility of preserving the sample for a long time and layering the sample again is realized.

Description

Technical field [0001] The invention relates to the technical field of soil sampling, in particular to a combined soil sampler capable of realizing layered sampling and a matching device thereof. Background technique [0002] Soil is the main research object in nature for agricultural, environmental, geological and biological researchers. The collection of soil samples is the basic work of relevant researchers to carry out research. Especially with the continuous development of environmental protection in my country, soil environmental research is becoming more and more complex, and the requirements for soil information collection are getting higher and higher. At present, the columnar soil sampler is a widely used soil collection device. The well-known columnar soil samplers mainly include a complete columnar cylinder and an integrated semi-circular gouge auger. The collection method is divided into manual collection and mechanical collection. The disadvantages of mechanical ...

AI Technical Summary

Problems solved by technology

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

In addition, when the sample is taken out from the sampling head, the sample cannot be shaped and easily lost, and the sample transfer process is cumbersome, and when sampling multiple times, the sampling head is likely to cause mixing between samples, and the replacement of the sample head increases the sampling cost

Moreover, whether it is a complete cylindrical cylinder or an integrated semicircular drilling sampler, the length is long and it is not easy to carry

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