Standardized graff ice cover sample extraction device and method

An extraction device and sample technology, which are applied in the field of ice sample extraction, can solve the problems of increasing ice jam formation, difficult comparative analysis, irregular ice sheet samples, etc., and achieve the effect of reducing damage

Active Publication Date: 2014-03-26
CHANGJIANG SURVEY PLANNING DESIGN & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no similar standardized extraction device for ice sheet samples in my country, and the method of breaking ice to take crushed ice cubes is mostly used. The block method will also cause serious damage to the integrity of the ice sheet, increasing the possibility of ice plugging and ice dam formation

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  • Standardized graff ice cover sample extraction device and method
  • Standardized graff ice cover sample extraction device and method
  • Standardized graff ice cover sample extraction device and method

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but these embodiments should not be construed as limiting the present invention.

[0026] As shown in the accompanying drawings, a standardized river channel ice cover sample extraction device of the present invention includes an ice-taking drill rod A, an ice-taking sleeve C and a movable handle B.

[0027] The ice drill rod A includes a handle support ring A4, the lower end of the handle support ring A4 is connected with the drill bit connecting rod A3; Movable ice support device A2 is arranged on the surface.

[0028] The ice-taking sleeve C includes a cylindrical hollow cylinder C4, which is provided with two symmetrically distributed handle support holes C5; a fixed handle C3 runs through the cylindrical hollow cylinder C4; the outer side of the middle part of the cylindrical hollow cylinder C4 A load-bearing ring piece C2 is prov...

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Abstract

The invention discloses a standardized graff ice cover sample extraction device which comprises an ice-taking drill pipe, an ice-taking sleeve and a movable handle, wherein a drill bit connecting rod is connected onto the ice-taking drill pipe; the lower end of the drill bit connecting rod is connected with a conical ice-taking drill bit, and the pinnacle of the conical ice-taking drill bit is downward; the ice-taking sleeve comprises a cylindrical empty cylinder without an upper bottom surface and a lower bottom surface; the edge of the lower end of the cylindrical empty cylinder is connected with annular sawteeth. The invention further discloses a method for using the standardized graff ice cover sample extraction device to extract an ice cover sample: the ice-taking drill pipe and the ice-taking sleeve are connected through the movable handle to extract the ice cover sample. With adoption of the extraction device and the extraction method, the extracted ice cover sample is a standard cylinder with a standard circular hole formed in the center, the radiuses of the circular hole and the cylinder can be customized according to the sampling demand, and the size of an ice-taking hole is basically consistent with that of the ice cover sample, so that the damage to the ice cover is reduced to the maximum on the basis of meeting the sample research requirement. According to the invention, the annular sawteeth are adopted for drill hole sampling on the ice cover, so that the characteristics of simpleness and less effort are realized.

Description

technical field [0001] The invention relates to the extraction of ice samples, in particular to a standardized river channel ice cover sample extraction device, and also relates to a method for using the extraction device to extract ice cover samples. Background technique [0002] In the current polar scientific research process at home and abroad, ice core drilling rigs are used to obtain ice core samples, and the drill bits of this drilling equipment mostly use the internal cavity of the drill bit to extract ice cores. This type of equipment is designed and manufactured with precision and high cost. [0003] Ice sheets are often formed on rivers and canals in northern my country in winter. Sampling and counting the thickness of ice sheets after formation is the key to understanding and studying the development process of ice sheets; key to research. At present, there is no similar standardized extraction device for ice sheet samples in my country, and the method of breaki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08
Inventor 闫弈博黄会勇毛文耀黄炜冷星火
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES
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