Accurate soil sampling device and method

Abstract

The invention discloses an accurate soil sampling device, and relates to the technical field of environmental detection. The accurate soil sampling device comprises a mounting plate, wherein the surface of the mounting plate is provided with a mounting hole; the mounting hole is internally and rotationally connected with a shaft sleeve; the shaft sleeve is internally, slidably and cooperatively provided with a sampling cylinder; the upper surface of the mounting plate is connected with a fixing plate through a plurality of connecting rods; the fixing plate is rotationally connected with a screw rod; the upper end face of the sampling cylinder is fixedly connected with an end cover; the center of the end cover is rotationally connected with a screw rod nut cooperating with the screw rod; the circumferential side face of the screw rod nut is fixedly connected with a limiting rod through an ear plate; the limiting rod penetrates through the fixing plate; the lower end of the screw rod isrotationally connected with a pressing plate. The accurate soil sampling device has the advantages that by arranging the sampling cylinder, a motor is utilized to drive the sampling cylinder to rotate, the screw rod is utilized to drive the sampling cylinder to move up and down, and the problems are solved that existing manual sampling is large in labor intensity and low in efficiency; by arranging the limiting rod, the control over the sampling depth of the sampling cylinder is achieved, and the problems that the existing sampling depth is not accurate, which affects the detection accuracy.

Description

technical field [0001] The invention belongs to the technical field of environmental detection, and in particular relates to a soil precision sampling device and a sampling method. Background technique [0002] The soil sampling device is used to lift the undisturbed soil of the lower test soil as a sample to understand its contamination status. Most of the existing sampling devices are simple in structure and laborious to use; and when sampling the soil layer, it is necessary to ensure that the soil sample taken out has a complete structure of the soil layer, and the sampling depth needs to be controlled. The depth acquisition is not accurate enough, resulting in the sampling soil layer being too deep or too shallow, which affects the accuracy of subsequent detection. [0003] At the same time, when it is necessary to sample the deep soil, the existing manual sampling device is labor-intensive and inefficient when used; therefore, it is urgent to design a device that can a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a soil precision sampling device and sampling method. By setting the sampling cylinder, using a motor to drive the sampling cylinder to rotate, and using a screw to drive the sampling cylinder to move up and down, it solves the problem that the existing manual sampling is labor-intensive and inefficient. The problem; by setting the limit rod, the control of the sampling depth of the sampling cylinder is realized, which solves the problem that the existing sampling depth is inaccurate and affects the detection accuracy

Images