Hand-operated hydraulic geotechnical cutting ring soil sampler

Abstract

The invention discloses a hand-operated hydraulic geotechnical cutting ring soil sampler, and relates to the technical field of geotechnical test equipment. The hand-operated hydraulic geotechnical cutting ring soil sampler consists of a hand-operated hydraulic mechanism, a telescopic mechanism and a soil sampling cutting ring, wherein the telescopic mechanism consists of an X-shaped hinged support frame, as well as a first pressure plate and a second pressure plate, which are arranged with one above the other; the two sides of the hand-operated hydraulic mechanism are mounted on the X-shaped hinged support frame and the first or second pressure plate in a hinging manner, and the telescopic end of the hand-operated hydraulic mechanism is hinged to the X-shaped hinged support frame. During soil sampling, the second pressure plate is arranged above a bottom cover, and the top of the cutting ring is covered with the bottom cover. According to the hand-operated hydraulic geotechnical cutting ring soil sampler, a conventional cutting ring soil sampling working process is improved; a hand-operated hydraulic device is adopted to provide higher uniform power, so that the working strength of a user is greatly reduced, and a soil sampling process is simplified; hollows are formed in the surface of a cutting ring body to reduce frictional force between a blade and a soil body in a downward pressure process of the cutting ring body, so that soil sampling difficulties and the whole working time are reduced, and soil can be sampled more conveniently.

Description

technical field [0001] The invention relates to the technical field of geotechnical test equipment, in particular to a manual hydraulic geotechnical ring cutter soil fetcher. Background technique [0002] In the whole geotechnical test, taking soil with ring knife is a basic experimental method. By taking undisturbed soil on site to measure the density and moisture content of soil, it is not only widely used in engineering practice but also widely used in experimental teaching and scientific research experiments. The traditional ring knife soil extraction method is relatively rough, using a hammer (or other blunt instrument) to hammer the bottom cover of the ring knife down in the soil layer, but due to the high friction between the soil and the ring knife, especially when the friction is relatively high As in cohesive soil, the resistance is greater, so that the process of soil extraction requires sufficient hammering force, which takes a long time and makes soil extraction...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems such as the difficulty in taking soil in the existing ring-knife soil extraction, the purpose of the present invention is to provide a manual hydraulic geotechnical ring-knife soil extraction device, which can improve the working process of the ring-knife soil extraction, save time and effort, and reduce work intensity

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