Geological stratified sampling device for geological prospecting

By designing a sliding connection between a movable base, a limiting ring, and a telescopic sleeve, the problems of easy damage and unstable sampling in existing devices are solved, achieving stability and efficiency in geological stratification sampling and providing more comprehensive geological information.

CN224189581UActive Publication Date: 2026-05-01GANSU GEOLOGICAL ENG SURVEY INST
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Patent Information

Application Number
CN202520917168.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-05-01
Estimated Expiration
2035-05-12

AI Technical Summary

Technical Problem

Existing geological stratification sampling devices are easily damaged during soil extraction, making it impossible to perform multiple sampling at different depths and efficiently obtain representative multi-layer samples, thus limiting the comprehensive understanding of deep geological information.

Method used

A geological stratification sampling device was designed, including a movable base, a limiting ring, a sampling tube, and a multi-section telescopic sleeve. The sampling tube moves synchronously through the sliding connection of the limiting ring and the telescopic sleeve, avoiding borehole collapse. The sample is easily retrieved through the cooperation of the arc plate and the drive component.

Benefits of technology

This method enables stratified and multiple sampling at different depths, resulting in better sample representativeness, a more stable sampling process, and improved sampling efficiency and accuracy.

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Abstract

The utility model relates to the technical field of geological sample sampling devices, and discloses a geological stratified sampling device for geological mining, which comprises a movable base provided with a central hole, and a limiting ring rotatably connected in the central hole; the sampling barrel selectively penetrates through the central hole; the telescopic sleeves are sequentially connected in a sliding mode from the outer side to the inner side in the vertical direction, the telescopic sleeve on the outermost side is connected with the inner side wall of the limiting ring in a sliding mode, the inner side wall of the telescopic sleeve on the innermost side is connected with the sampling barrel in a sliding mode, and the sampling barrel can drive the telescopic sleeve on the innermost side to synchronously move downwards. And then the multiple sections of telescopic sleeves from the inner side to the outer side are driven to be sequentially embedded in the drill hole. The sampling barrel can drive the telescopic sleeve on the innermost side to synchronously move downwards, then the multiple sections of telescopic sleeves are driven to be sequentially embedded in a drill hole, collapse of the drill hole is avoided, and layered multi-time sampling of stratums with different depths is achieved.
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