Sampling device and sampling method

By using annular cutting edges and stoppers to limit the sample thickness, and combining a guide rail unit and a drive shaft to adjust the cutting position, the sampling device solves the problem of large sample dispersion during the sampling of micro-samples from pipelines, achieves consistency in sample thickness and outer contour, and meets the testing requirements.

CN122108665APending Publication Date: 2026-05-29CHINA JILIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA JILIANG UNIV
Filing Date
2026-03-03
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the existing technology, the sampling of micro-samples on the pipe surface has large sample dispersion and poor consistency, which makes it difficult to meet the testing requirements of subsequent detection for samples with the same shape and size parameters.

Method used

A sampling device including a first sampling component and a second sampling component is adopted. The first sampling component limits the thickness of the sample part through an annular cutting edge and a stop, and the second sampling component adjusts the cutting position through a guide rail unit and a drive shaft to ensure the consistency of the thickness and outer contour of the sample part.

Benefits of technology

This ensures consistency in the thickness and outer contour of the sample taken each time, meeting the testing requirements for samples of the same shape and size parameters in subsequent testing processes, and ensuring the accuracy and reliability of the test results.

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Abstract

The application provides a sampling device and a sampling method. The sampling device comprises a box body, a first sampling assembly arranged in the box body and comprising a first sampling cutter and a stopper, the first sampling cutter being configured to reciprocate along a first direction relative to the box body so as to insert a first cutting edge into a target object for ring cutting or detach from the target object, the stopper being arranged on a movement path of the first sampling cutter and being used to limit a ring cutting depth of the first cutting edge relative to the target object, and a second sampling assembly, the second sampling assembly comprising a second sampling cutter, a driving shaft and a guide rail unit, the second sampling cutter being connected to the driving shaft, the guide rail unit being used to enable the driving shaft to move along a second direction relative to the box body, and the guide rail unit having an adjustable connection position along the first direction relative to the box body. In the sampling device and the sampling method, the thickness size and the consistency of the outer contour of the sample part obtained by each sampling are better, and the testing requirements of sample detection on the sample can be better met.
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