Low-disturbance soil sampling device and sampling method thereof

Abstract

The invention relates to the technical field of soil detection, in particular to a low-disturbance soil sampling device and a sampling method thereof. The low-disturbance soil sampling device comprises a sampling barrel, an opening is formed in one end of the sampling barrel, a baffle is rotationally connected to the opening end of the sampling barrel, a limiting piece is arranged on the samplingbarrel, and a triggering device is convexly arranged in the sampling barrel. The sampling cylinder is hit into the ground, soil enters the sampling barrel from the open end of the sampling barrel under the extrusion of the sampling barrel. After soil in the sampling cylinder extrudes the swing rod and triggers the swing rod to swing, the rotating shaft is unlocked, so that the baffle rotates around the rotating shaft under the action of the torsional spring. Meanwhile, the baffle is driven by the motor to cut off the soil so as to close the opening end of the sampling barrel, so that the soilin the sampling barrel does not easily fall out of the sampling barrel from the opening of the sampling barrel in the process of taking out the sampling barrel, the improvement of the integrity of thesampled soil is facilitated, and the accuracy of soil sampling, detecting and analyzing is further improved.

Description

technical field [0001] The invention relates to the technical field of soil detection, in particular to a low-disturbance soil sampling device and a sampling method thereof. Background technique [0002] At present, a soil sampler is a tool often used in environmental monitoring. The soil sample is taken out through the sampler, and then the soil sample is analyzed to obtain various components contained in the soil. For example, the patent with the notification number CN204789028U discloses a soil sampler, including a handle and a sampling rod movably connected with the handle, the sampling rod I and the sampling rod II movably connected to the sampling rod, and the sampling rod I and the sampling rod II are all sleeve-type structures; the sampling rod I and the handle are hinged; the lower part of the sampling rod II is movably connected with a sampling tube; the sampling tube has a sampling port. The sampler adopting the above-mentioned telescopic sleeve structure folds t...

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Problems solved by technology

[0003] The above-mentioned prior art scheme has the following defects: when collecting soft soil samples, due to the low viscosity between the soil and the soil, and between the soil and the inner wall of the sampling rod, the process of taking the sampling rod out of the soil is relatively low. In the process, the soil in the sampling rod will fall from the sampling port, and the integrity of the collected soil samples will be destroyed, which will have a certain impact on the accuracy of the sample data obtained, which needs to be improved

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