Efficient screw-in soil sampling device

Abstract

The invention discloses a high-efficiency screw-in soil sampling device, which includes a bracket and a sampling cylinder; a moving rod is arranged inside the sampling cylinder; a pumping plate is fixedly connected to the left side of the moving rod, and a right end of the moving rod is fixedly connected to A moving block, the moving block abuts against a fixed block, and the left side of the fixed block is fixedly connected with a sampling tube; a sliding plate is arranged under the sampling tube, a sample box is arranged under the sliding plate, and a plurality of independent sample cells are arranged in the sample box. The present invention is provided with a precession drive device to accurately reach the depth of sampling and improve the accuracy of sampling; the present invention is provided with a sampling cylinder to realize drilling at one time and obtain soil samples of different depths, thereby improving the efficiency of sampling; The soil samples are stored separately through a rotating sample box with independent sample grids to avoid mutual contamination between soil samples, and at the same time prevent samples from falling, ensuring that the sample volume meets the sampling requirements.

Description

technical field [0001] The invention relates to the field of soil collection, in particular to a high-efficiency screw-in soil sampling device. Background technique [0002] There are many types of soil samplers. A small shovel can be used to collect surface soil samples from farmland or wasteland. To study the general physical properties of soil, such as soil bulk density, porosity and water holding properties, etc., ring cutters can be used. The ring knife is a cylinder with openings at both ends and a blade at the bottom. The height and diameter of the cylinder are about 5 cm. The most commonly used sampling tool is the earth auger. There are two types of soil drills: manual operation and mechanical operation. There are many types of soil augers that are manually operated. There are short-handled soil augers for collecting shallow soil samples, and screw-head soil augers for observing the internal profile characteristics of the soil layer about 1 meter away. However,...

AI Technical Summary

Problems solved by technology

[0003] Traditional manual sampling is time-consuming and labor-intensive. It is difficult to sample deep soil samples. During the sampling process, it is difficult to ensure that deep soil samples are not contaminated with soil from other depths, resulting in large deviations in test data. When taking out the tool, the soil often falls, resulting in insufficient samples or representativeness of the method. For soil samples at different depths, multiple sampling is required, which wastes time and physical strength.

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