Portable shallow mudstone sampling mechanism

Abstract

The invention discloses a portable shallow mudstone sampling mechanism, which comprises an outer shell, a supporting seat, a built-in sampling assembly, a side extraction assembly and a storage cylinder seat, wherein the supporting seat is fixedly arranged on the lower end surface of the outer shell in an inverted buckling manner; the supporting seat is in full fit contact with the outer surface of the shallow mudstone, and is temporarily extended and fixed on the shallow mudstone by arranging a plurality of fixing pieces on the outer side of the circumference of the supporting seat; a built-in sampling assembly is coaxially arranged in the outer shell in the vertical direction, and a sampling pipe fitting extends into the shallow mudstone when the built-in sampling assembly carries out sampling work; side extraction assemblies are arranged on the left side and the right side of the outer shell; the side extraction assemblies are used for further extracting the mudstone sample in a layered mode, and the internal layered structure of the shallow mudstone is obtained according to the extraction component ratio of the mudstone sample; storage cylinder bases are arranged on the outer shell in a left-right staggered mode; and all the storage cylinder bases are communicated with the side extraction assembly, and all the stratified extraction samples are effectively stored.

Description

technical field [0001] The invention relates to the technical field of mudstone sampling devices, in particular to a portable shallow mudstone sampling mechanism. Background technique [0002] In order to understand the physical and mechanical properties of the surface and deep underground rocks, a large number of rock mechanics experiments are carried out every year. At present, successful sampling of mudstone is a well-recognized sampling problem in the field of rock mechanics. Since mudstone is a kind of sedimentary rock solidified by mud and clay, its bedding is obvious, the cementation is weak, the hardness is low, the brittleness is good, and it disintegrates when it encounters water hydration. , it is necessary to sample the shallow mudstone through the sampling mechanism. The existing sampling mechanism generally places the sampling mechanism on the surface of the shallow mudstone, then excavates it locally, and extracts it from the surface layer by rotating blades....

AI Technical Summary

Problems solved by technology

Because mudstone is a kind of sedimentary rock solidified by mud and clay, its bedding is obvious, the cementation is weak, the hardness is low, the brittleness is good, and it will disintegrate when it encounters water hydration. , it is necessary to sample the shallow mudstone through the sampling mechanism. The existing sampling mechanism generally places the sampling mechanism on the surface of the shallow mudstone, then excavates it locally, and extracts it from the surface layer by rotating blades. This type of method will cause serious damage to the internal layered structure of the sample, which is not convenient for structural analysis of the mudstone, and when extracting, due to the incomplete internal components, the proportion of each layer is not accurate, resulting in low accuracy of the sampling experiment results, so It is necessary to propose a portable shallow mudstone sampling mechanism to solve the above problems

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