Hollow internal through type drill bit

Abstract

The invention mainly provides a hollow internal through type drill bit. The hollow internal through type drill bit is mainly composed of a drill bit rotating body, cutting blades, outer side alloy andcentral single blades. The drill bit rotating body bears active cutting drilling in the drilling process and is formed by machining high-quality alloy structural steel, the drilling requirement can be met efficiently in a wear-resisting mode, the cutting blades and the rotating body are welded into a whole to achieve the purpose of efficient drilling, the single blades serve as supporting cross beams to be additionally arranged on the head of the drill bit rotating body, center rock can be effectively crushed in the drilling process, centering drilling is guaranteed, and the single blades canbe opened and closed through the opening and closing effects of the single blades after drilling is completed. The center of the drill bit rotating body is in a hollow state so as to achieve the purposes of conveying supplies and the like through a cable and, the center single blade opening and closing drill bit is novel in design, the drilling cost can be saved by 3-4 times according to actual use requirements, and the service life is three times or longer than that of other products.

Description

technical field [0001] The invention mainly relates to a hollow drill bit, which is mainly used for cable laying in trenchless engineering, pipeline dredging in road administration engineering, gas control in mining engineering, drilling rescue in emergency rescue and disaster relief, and transportation of supplies. Background technique [0002] In the cable laying process in the previous non-excavation engineering, the purpose of laying the cable is to drill the hole first and then pull the cable back through the reaming drill. Negative Effects. During emergency rescue, due to disasters such as landslides and tunnel collapses, people are buried. If the victims stay in a closed environment for a long time, it is easy to cause hypoxia, especially when there is a shortage of food and water. The victims are likely to be unconscious or even life-threatening. How to quickly and efficiently transport oxygen, food and other supplies to the victims in such a critical situation, so ...

AI Technical Summary

Problems solved by technology

[0002] In the cable laying process in the previous non-excavation engineering, the purpose of laying the cable is to drill the hole first and then pull the cable back through the reaming drill. Negative Effects

During emergency rescue, due to disasters such as landslides and tunnel collapses, people are buried. If the victims stay in a closed environment for a long time, it is easy to cause hypoxia, especially when there is a shortage of food and water. The victims are likely to be unconscious or even life-threatening. How to quickly and efficiently transport oxygen, food and other supplies to the victims in such a critical situation, so as to seize the opportunity for life, has become a problem that many people study and solve

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