Sampling device

Abstract

The invention discloses a sampling device. The sampling device comprises a sampling barrel, an outer sleeve fitting and a center rod, wherein the outer sleeve fitting comprises a sleeve and a sealing column, a top end of the sleeve is provided with a sleeve handle, a bottom end of the sleeve is connected with the sealing column, the sealing column can be inserted into a sampling chamber from an opening and block the opening, and the sleeve and the sealing column are provided with pipelines in the axial direction of the sleeve; the center rod is movably inserted into the pipeline in a penetrating manner, a center rod handle is arranged at a top end of the center rod, and a bottom end of the center rod can penetrate through the pipeline to extend into the sampling chamber and is detachably mounted in the sampling chamber. When the sampling device disclosed by the invention is used for sampling some substances with relatively high flowability, such as filter materials, powder materials, water samples, sandy soil and petroleum, rapid and accurate sampling can be realized, and the device can be used for multiple times for a long time and is convenient to carry.

Description

technical field [0001] The invention relates to a fixed-point sampling technology for fluid substances, in particular to a sampling device. Background technique [0002] Sampling and analysis of filter materials, powder materials, water samples, sand, petroleum and other highly mobile substances involve the research contents of environment, agriculture, geology, petrochemical industry, etc. Samples must be collected accurately and quickly. [0003] It is difficult to collect the fluid substances at the bottom layer. Usually, the upper layer samples are first excavated and then the lower layer samples are sampled. However, if the excavated gap is too small, the fluid substances around the gap will flow into this gap again. To use this method for sampling, the gap must be dug large enough, but this method is time-consuming and laborious. Therefore, it is very necessary to invent a sampling device for bottom fluid substances. Contents of the invention [0004] The present i...

AI Technical Summary

Problems solved by technology

[0003] It is difficult to collect the fluid substances at the bottom layer. Usually, the upper layer samples are dug out first and then the lower layer samples are sampled. However, if the excavated gap is too small, the fluid substances around the gap will flow into this gap again. Using this method for sampling, the gap must be dug large enough, but this method is time-consuming and laborious. Therefore, it is very necessary to invent a sampling device for bottom fluid substances

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