Drilling device for engineering investigation

Abstract

A drilling device for engineering investigation comprises a base, two supports are fixed to the base, the two supports are in sliding connection with a supporting plate, a motor is started to drive adrill bit to rotate, the supporting plate is pushed downwards to make the drill bit make contact with the ground, the drill bit enters a rock stratum in the rotating process, the rock stratum is drilled, and soil in the rock stratum is brought out; when the drill bit drills downwards and the supporting plate abuts against the baffle, the baffle is pushed to move downwards to squeeze the spring tobuffer the supporting plate, so that the drill bit is buffered and decelerated to drill the rock stratum, and damage caused by the fact that the drill bit descends too fast is prevented; an ejector rod moves downwards to push the two limiting rods to slide out of the base, the compressed spring extends, the two limiting rods are inserted into the ground, the ground gripping capacity of the base isimproved while the supporting area of the base is increased, the base is prevented from moving when the drill drills a rock stratum bottom plate, and damage caused by deviation of the drill is avoided.

Description

technical field [0001] The invention relates to the technical field of drilling, in particular to a drilling device for engineering survey. Background technique [0002] Drilling or prospecting is the use of deep drilling mechanical engineering technology to mine underground or seabed natural resources, or to take real-time strata profiles to capture physical samples to provide experiments to obtain relevant data, etc. In construction engineering, it is usually necessary to make some The shallow rock layer is drilled and surveyed through the auger bit to determine whether construction can be started; however, in traditional construction engineering, when the shallow rock layer is drilled and surveyed, when the drill bit is pushed down to drill the bottom of the rock layer, because the drill bit is not well buffered, the drill bit is in contact with the bottom rock layer If it is too fast, the drill bit will be damaged, which will affect the drilling and survey work. Conten...

AI Technical Summary

Problems solved by technology

[0002] Drilling or prospecting is the use of deep drilling mechanical engineering technology to mine underground or seabed natural resources, or to take real-time strata profiles to capture physical samples to provide experiments to obtain relevant data, etc. In construction engineering, it is usually necessary to make some The shallow rock layer is drilled and surveyed through the auger bit to determine whether construction can be started; however, in traditional construction engineering, when the shallow rock layer is drilled and surveyed, when the drill bit is pushed down to drill the bottom of the rock layer, because the drill bit is not well buffered, the drill bit is in contact with the bottom rock layer If it is too fast, the drill bit will be damaged, which will affect the drilling survey work

Images