A groove drill with inner and outer walls separated

Abstract

The invention discloses an inner and outer wall separation type slot type drill. The inner and outer wall separation type slot type drill comprises a T-shaped handle, an inner embedded semicircular sleeve chiseling drill, an outer embedded semicircular sleeve chiseling drill, a scraper and a nylon hammer. According to the inner and outer wall separation type slot type drill, bosses of the inner embedded semicircular sleeve chiseling drill and outer embedded circular pipe transverse grooves and outer embedded circular pipe vertical grooves of the outer embedded semicircular sleeve chiseling drill are utilized to form a limiting part, and therefore an inner embedded semicircular sleeve drill groove (an inner wall) can lock or unlock an outer embedded semicircular sleeve drill groove (an outer wall), the purposes that the inner wall and the outer wall are locked and hammered to enter the ground, the inner wall and the outer wall are unlocked, and the inner wall drill groove and a soil core are taken out are conveniently achieved, the frictional resistance between the semicircular chiseling drills and the soil layer in the repeated drill lifting process is eliminated, a large amount ofmanpower and the time cost are saved, the operation is easy and convenient, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of wall connecting parts, in particular to a groove drill with inner and outer walls separated. Background technique [0002] The channel drill is the most commonly used tool for exposing surface lithology in the Quaternary field geological survey. A set of channel drill tools is mainly composed of a semicircular drill, a drill pipe, a nylon hammer, a T-shaped handle and a scraper. Its operation method is mainly to drill the chisel with the handle upright into the ground, turn the handle clockwise and pull it out, and use a scraper to scrape off the semicircular core of the chisel to reveal the characteristics of the core. [0003] In actual operation, it is often necessary to increase the drill pipe for multiple times of coring up to 3-6 meters. When sampling some clay strata, the process of lifting the drill is quite laborious, and as the depth continues to deepen, the lower coring chisel The drill is lif...

AI Technical Summary

Problems solved by technology

[0003] In actual operation, it is often necessary to increase the drill pipe for multiple times of coring up to 3-6 meters. When sampling some clay strata, the process of lifting the drill is quite laborious, and as the depth continues to deepen, the lower coring chisel The drill was lifted several times, consuming a lot of manpower

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