Lever type soil-sampling ring cutter device

A knife device and lever-type technology, which is applied in the field of soil borrowing ring knife device, can solve the problem of difficulty in pressing the ring knife into the sample, and achieve the effects of improving efficiency and quality and applying uniform force.

Inactive Publication Date: 2012-10-17
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional experiment, the ring knife is pressed down into the soil sample by manual direct pressing. However, if the soil is hard, it is difficult to manually press the ring knife into the sample.

Method used

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  • Lever type soil-sampling ring cutter device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Design a lever type earth taking ring knife device of the present invention, see figure 1 , design a sampling table that can be installed with a lever device, the sampling table includes: a metal circular base 13 with a diameter of 100 mm and a thickness of 10 mm, a cylindrical support column 12 with a diameter of 20 mm and a height of 100 mm is vertically fixed on the edge of the base 13, and the support column 12 The upper end is connected with a movable handle 8, which is the main part of the present invention as a lever. The movable handle 8 is connected with the support column 12 by the movable bolt 11, and the movable handle 8 can freely rotate up and down. The cross-section of the movable handle 8 is a square with a side length of 10mm, and the length of the movable handle 8 is greater than 100mm. It is made of rigid hard square-shaped material and can be rotated to withstand larger torsion without deformation.

[0013] The sleeve 10 that can slide on the movable...

Embodiment 2

[0017] The above-mentioned lever-type earth-taking ring knife device is further improved. On the basis of Embodiment 1, a groove is designed on the bottom plane of the pressure plate 5 at the contact of the pressure plate 5 and the ring knife 1, and the pressure plate 5 When applying pressure to the ring knife 1, the tail of the ring knife 1 can just enter the groove, preventing the pressure plate 5 from sliding relative to the ring knife 1 during the pressure application process. The groove here is circular, concentric with the plane of the cone bottom of the pressing plate 5, the inner diameter of the groove is 62mm, the width is 2mm, and the depth is 2mm.

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PUM

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Abstract

The invention relates to a lever type soil-sampling ring cutter device. A separable lever device is added on a soil-sampling ring cutter and comprises a movable handle and a supporting column, wherein the supporting column is vertical to the base and is fixedly connected with the base; the movable handle is positioned at the upper part of the supporting column and is movably connected with the supporting column by a bolt; a sleeve capable of sliding along the movable handle is arranged at the middle position of the movable handle; a movable bolt on the sleeve is connected with a force applying rod; and a ring cutter is arranged under a pressure applying plate. When in soil sampling, a soil sample is arranged on the base of the ring cutter device, then an edge of the ring cutter is downwards arranged on the soil sample, the handle is pulled upwards to enable the pressure applying plate to be just arranged on the ring cutter, the movable handle is pulled downwards by force to enable the pressure applying plate to apply pressure uniformly on the ring cutter, so that the ring cutter enters the soil sample. The lever type soil-sampling ring cutter device provided in the invention has the advantages that by the improvement on the ring cutter, the common manual pressing mode can be used, the ring cutter can be smoothly pressed into the hard soil sample for sampling; in the whole sampling process, the force applying is uniform, and the efficiency and the quality of sampling are improved.

Description

technical field [0001] The invention relates to the field of civil engineering sampling tools, in particular to a soil-taking ring knife device. Background technique [0002] The ring knife is a kind of test equipment used for soil engineering tests. It is mainly used to prepare soil samples for testing such as soil density and water content. A ring knife is essentially a rigid, open-ended cylindrical sleeve with a sharper edge at one end. In specific use, a relatively large soil sample is prepared first, and then the ring knife is placed on the soil sample, the cutting edge is in contact with the surface of the sample, and then pressed down firmly to make the ring knife enter the soil sample. In the process of forcing the knife changer to move downward, the blade of the ring knife cuts into the surrounding soil samples. When the ring knife completely enters and penetrates the soil sample layer, the soil sample in the ring knife is taken out to make a complete sample. soil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/04
Inventor 赵忠虎
Owner LANZHOU UNIVERSITY
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