Soil sampler provided with annular cutter

Abstract

The invention discloses a soil sampler provided with an annular cutter. The technical scheme is characterized in that the soil sampler provided with the annular cutter comprises an adjusting rod, wherein the adjusting rod comprises a connection section, a handle section and an extension section arranged between the connection section and the handle section; the connection section is connected witha fixing sleeve; insertion rods are fixedly connected with end faces, facing the connection section, of the extension section and the handle section, insertion holes allowing snap-in of the insertionrods are formed in end faces, facing the handle section, of the connection section and the extension section, two through holes communicated with the insertion holes are formed in the side surface ofeach of the extension section and the connection section, fixing rods are arranged in the through holes, and fixing holes allowing penetrating of limit rods are formed in side surfaces of the insertion rods. After the fixing rods are pulled out of the fixing holes, the inserting rod can be pulled out of the insertion holes, and accordingly, the extension section, the connection section and the handle section are relatively separated, the length of the adjusting rod can be changed by increasing or decreasing the number of the extension sections, and the soil sampler provided with the annular cutter meets requirements of different environmental conditions for drilling depth of the soil sampler.

Description

technical field [0001] The invention relates to a soil fetcher, in particular to a ring cutter soil fetcher. Background technique [0002] In engineering geological prospecting and reconnaissance work, in order to determine the soil properties, it is often necessary to collect the undisturbed soil of the lower layer of test soil for testing, and the collection tool is called a soil fetcher. Commonly used soil extractors are ring knife soil extractors, and the working principle is as follows: knock the soil extractor into the soil to the required depth by hammering, then pull it out, then disassemble the ring cutter and half cylinder, and use the scraper to scrape the ring The two ends of the knife are scraped flat to complete the collection of undisturbed soil. [0003] Notification number is that the Chinese patent of CN202994518U discloses a kind of ring cutter soil fetcher, and this soil fetcher comprises the ring cutter casing that sets ring cutter inside and is formed ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned ring knife soil fetcher has the following technical defects: the length of the handle is fixed and cannot be adjusted, and depending on the soil conditions and the degree of disturbance of the soil surface, the soil fetcher needs to be drilled into different depths to collect undisturbed soil samples

Therefore, if the handle is too short, the deep soil cannot be collected; if the handle is too long, the staff needs to tap it with the help of a ladder, which is very troublesome and needs to be improved

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