Deep soil stratified sampling device for soil survey sampling

Abstract

The invention discloses a deep soil stratified sampling device for soil survey sampling. The device comprises a rotating drum, an internal cylinder, a supporting mechanism and a scraping device, wherein the rotating drum comprises an upper rotating drum and a lower rotating drum which are in threaded connection; two soil sampling holes are formed in the lower rotating drum; the internal cylinder comprises a rotating cylinder and a sampling cylinder, the bottom ends of which are in threaded connection; and an external cylinder is arranged outside the internal cylinder. The device has the following advantages that: a scraping device is arranged, the structure is simple, the operation is easy, an existing sampling bottle is replaced to sample in the mode of directly contacting with the soil and the sampling efficiency is high; and the soil sampling holes are formed, the problem that the sampling device is difficult to close when the deep soil sampling is finished is overcome, the openingand closing of the sampling device are controlled by utilizing a rotation mode, the operation is convenient and the error caused by unsampled soil layers is little.

Description

technical field [0001] The invention relates to the technical field of soil sampling, in particular to a layered sampling device for deep soil in soil investigation and sampling. Background technique [0002] Environmental testing and treatment is a highly technical emerging industry. Soil sampling is a kind of environmental testing. Soil sampling refers to the method of collecting soil samples, including sampling layout and sampling technology. After the observation and records are completed, the soil should be drilled before sampling, and then use the sampling device to sample from the typical part of the center layer by layer from top to bottom. The existing sampling methods, for shallow soil layers, most Use a shovel to excavate, and then sample different soil layers. For deep soil layers, a special sampling method is used to collect. The existing sampling device has a complex structure, a large diameter of the device, and a large diameter of the required drilling hole, ...

AI Technical Summary

Problems solved by technology

[0002]Environmental testing and treatment is a highly technical emerging industry. Soil sampling is a type of environmental testing. Soil sampling refers to the method of collecting soil samples, including Sampling layout and sampling technology, the sampling of profile soil samples should be carried out after the observation and recording of the profile is completed. Sampling, the existing sampling method, for the shallow soil layer, most of them use a shovel to excavate, and then sample different soil layers, and for the deep soil layer, a special sampling method is used to collect. The existing sampling device has a complex structure , the diameter of the device is large, the required drilling diameter is large, and the soil structure is easily damaged. When sampling deep soil layers, the scraping efficiency is low, resulting in low sampling efficiency and low accuracy of sampling positions.

Images