Drilling device achieving transverse drilling conveniently

Abstract

The invention provides a drilling device achieving transverse drilling conveniently. The drilling device comprises a drill bit seat, a drill barrel and a straight barrel. The drill barrel is a cylindrical hollow barrel body and comprises a first end and a second end along the axis, wherein the first end and the second end are opposite. A drill bit is arranged at the first end. The second end is rotationally mounted on the drill bit seat. The drill barrel can rotate around the axis of itself. The straight barrel is arranged on the outer surface of the drill barrel in a sleeving manner and is coaxial with the drill barrel. A clearance is arranged between the inner wall of the straight barrel and the outer surface of the drill barrel. One end of the straight barrel is fixedly arranged on thedrill bit seat. The other end of the straight barrel extends towards the drill bit. A clearance is also arranged between the end face of the other end of the straight barrel and the drill bit. The outer diameter of the drill bit on the drill barrel is larger than the maximum outer diameter of the straight barrel. Multiple penetrating slag discharge holes are formed in the barrel wall of the straight barrel. The straight barrel is arranged outside the drill barrel in the sleeving manner, the drill barrel is protected against wear, meanwhile, the straight barrel and the drill barrel rise into adrilled hole together and are attached to the hole wall, soil and stone cannot fall off on the hole wall, and the drilled hole is more regular and smoother.

Description

technical field [0001] The invention relates to the technical field of drilling equipment, in particular to a drilling device for facilitating horizontal drilling. Background technique [0002] With the advancement of technology, more and more large-scale machinery is used for construction in the field of construction engineering. The drilling tools often used in hole forming operations are barrel drills. When drilling horizontally, some soil and rocks will fall on the wall of the drilled hole. These soil and rocks will cause great wear and tear on the drill tube as the drill tube rotates between the outer wall of the drill tube and the hole wall. At the same time, it will cause damage to the hole wall, making the drilled holes irregular. Contents of the invention [0003] In view of this, the problem to be solved by the present invention is to provide a drilling device that is convenient for lateral drilling, which protects the drill tube from being worn out, increases ...

AI Technical Summary

Problems solved by technology

When drilling horizontally, some soil and rocks will fall on the wall of the drilled hole. These soil and rocks will cause great wear and tear on the drill tube as the drill tube rotates between the outer wall of the drill tube and the hole wall. service life, and at the same time cause damage to the hole wall, making the drilled holes irregular

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