A Soil Automatic Sampling Mechanism for Engineering Survey Based on Magnetic Control

Abstract

The invention provides an automatic soil sampling mechanism for engineering survey based on magnetic force control, which includes a base, the bottom of the base is connected with a detection plate through a compression spring, a lifting ring is slidably inserted into the base and above the guide post, and the vertical rod The bottom is fixedly connected with a magnetic block 1, and the outer side of the roller is fixedly embedded with a magnetic block 2. The outer side of the roller is provided with evenly distributed driven plates, and the outer side of the guide post is provided with a drive plate corresponding to the driven plate. The drill pipe moves down to the sampling depth and then moves up. During this process, the soil pressure on the bottom of the detection plate gradually decreases. The pressure spring pushes the guide column to move down and drives the roller to rotate, so that the first magnetic block is aligned with the second magnetic block. The lifting ring is lifted upwards, the second magnetic plate is in contact with the magnetic guide holder and magnetized, and the supporting ring is pushed to deflect under the action of the same repulsion force, and the supporting ring drives the inner cylinder to rotate, so that the gap is aligned with the sampling port, and the external soil enters the inner cylinder. Inside, soil sampling at the location is done.

Description

technical field [0001] The invention belongs to the technical field of engineering survey and sampling, in particular to an automatic soil sampling mechanism for engineering survey based on magnetic force control. Background technique [0002] When carrying out construction projects such as buildings, bridges and bases, in order to find out the geological environment characteristics in the construction area and other natural conditions related to the construction of the project, it is necessary to conduct on-site surveys and surveying and mapping work. These tasks are collectively referred to as engineering surveys. Some of the content is to sample and analyze the soil in the construction area to determine the basic requirements for subsequent construction. [0003] In order to obtain accurate analysis results, when soil sampling is performed, it is necessary to sample and analyze both the surface soil and the underground soil. The current underground soil sampling method is...

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Problems solved by technology

[0003] In order to obtain accurate analysis results, when soil sampling is performed, it is necessary to sample and analyze both the surface soil and the underground soil. The current underground soil sampling method is to first drill holes through drill pipes, After drilling to the specified depth, the sampling device is lowered to collect and sample the soil. The operation is complicated and time-consuming.

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