In-situ non-destructive soil sample collector

Abstract

The invention relates to an in situ non-destructive soil sampler which includes a cylinder drill 1, a drill rod 2, a handle 3, an inner ring 4, an inner ring support 5 and an inner push rod 6, and is characterized in that the front end of the cylinder drill 1 is provided with an elastic cutting edge with bayonet; the cylinder drill 1 and the drill rod 2 are welded together; the drill rod has a hollow pipe-like structure; the inner push rod 6 and the inner ring support 5 are welded together; the inner push rod and the inner ring support are installed in the sleeves of the drill rod 2 and the cylinder drill 1; the inner ring 4 is installed in the sleeve of the cylinder drill 1; the inner push rod 6 pushes the inner ring support 5 to move axially, so as to push the inner ring 4 fully filled with original soil out of the cylinder drill. The sampler has the advantages of simple structure, convenience in operation, economy and practicality.

Description

technical field [0001] The invention belongs to a soil sampling device. The obtained soil samples can be used to measure soil volume specific gravity, and the soil volume specific gravity can be used to calculate parameters such as soil weight and soil porosity in a certain area and a certain depth. The device can be used to take samples of different depths. Undisturbed soil sample. Background technique [0002] In order to accurately measure the soil bulk density, the more classic local method is to use 100cm 3 The steel ring knife (knife end facing down) is pressed into the soil smoothly. After the soil column emerges from the upper end of the ring knife, dig the surrounding soil with a shovel and take out the ring knife filled with soil. If you want to measure the deeper soil bulk density, It is necessary to excavate the soil profile, and the excavation depth is often 1m or deeper. For cultivated soils, disturbing the soil so intensively to take undisturbed soil samples...

AI Technical Summary

Problems solved by technology

However, many agricultural operations during the crop growth period (such as intertillage, deep loosening, irrigation, etc.) have a profound impact on soil bulk density. If these changes are not grasped in time, it is difficult to propose scientific and effective control measures, and traditional sampling methods are time-consuming. Laborious, very low efficacy

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