Liner type direct pressure undisturbed soil fetcher

Abstract

The invention relates to a liner pipe type vertical-compression undisturbed soil sampler which is used for collecting a soil sample, qualitatively and quantitatively analyzing soil ingredients and physical and chemical properties, and is applicable to scientific research, teaching and production departments related to soil and earthwork. The soil sampler comprises a soil sampler main body, a liner pipe and a stopping block which are arranged inside the soil sampler main body, a cover cap arranged at the upper end of the soil sampler main body, a triangular bracket arranged on the soil sampler main body, and a jack arranged between the soil sampler main body and the triangular bracket. The liner pipe type vertical-compression undisturbed soil sampler provided by the invention has the advantages of simple and reasonable structure, convenience in operation, time-saving and labor-saving properties, high efficiency and the like. The invention provides the liner pipe type vertical-compression undisturbed soil sampler for pressing the soil sampler into soil by using the jack.

Description

technical field [0001] The invention relates to a soil fetcher, in particular to a liner type direct pressure undisturbed soil fetcher, which is used to collect soil analysis samples at different depths, and is not only suitable for sampling undisturbed soil for scientific research, but also for Geotechnical test sampling is suitable for scientific research, teaching and production departments related to soil and geotechnical engineering. Background technique [0002] Soil extractor is used as a kind of auxiliary tool for soil analysis sampling and geotechnical test sampling as a kind of collection of soil analysis samples, which has been widely used by related scientific research, teaching and production departments. The soil extractor in the prior art, for example, the patent No. Due to its unreasonable structure, there are many shortcomings and deficiencies in the prior patent application, which are specifically manifested in: ①. Since the earth taker is pressed into the ...

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Problems solved by technology

[0002] Soil extractor is used as a kind of auxiliary tool for soil analysis sampling and geotechnical test sampling as a kind of collection of soil analysis samples, which has been widely used by related scientific research, teaching and production departments. The soil extractor in the prior art, for example, the patent No. Due to its unreasonable structure, there are many shortcomings and deficiencies in the prior patent application, which are specifically manifested in: ①. Since the earth taker is pressed into the soil by using a threaded drill rod, the earth taker is pushed to the ground by the thread rotation pressure During the downward movement, the soil fetcher cannot rotate together with the threaded drill pipe, so the press-in plate at the lower end of the threaded drill pipe is a bearing, and its compression resistance is small. When the threaded drill pipe is pressed in, it is easy to fracture the bearing and affect the The depth and range of soil sampling; ②, the design of the soil sample jacket press-in device is unreasonable, the compressive capacity is weak, and it is difficult to take out after being pressed into the soil

[0003] In order to solve the above-mentioned problems, the applicant has developed a new-type structure soil extractor, and applied for a utility model patent, the patent number is 200920094990.4. Soil, such as collecting undisturbed soil samples of 40cm-100cm for scientific research and teaching, and soil samples for deeper geotechnical tests, due to limited manpower, it is difficult to obtain soil

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