Novel reinforced special drill bit for rear embedded part

Abstract

The utility model discloses a novel reinforced special drill bit for a rear embedded part, which belongs to the technical field of drill rods and comprises a drill rod, a drill rod cylinder is arranged in the middle of the drill rod, a first alloy blade is arranged at the top end of the drill rod, a second alloy blade is arranged on the upper portion of the surface of the drill rod, and a groove is formed in the lower portion of the surface of the drill rod. On the basis that a common drill rod drills a hole, the drill rod is used for stretching into the drilled hole to conduct secondary drilling, in the drilling process of the drill rod, the drill rod vibrates, the second alloy cutting edge arranged on the upper portion of the surface of the drill rod drills a groove in the inner wall of the hole, a reinforcing steel bar is implanted into the hole, and structural adhesive is poured into the hole. Due to the grooves in the inner wall of the hole, the friction force between the structural adhesive and the inner wall of the hole is increased after the structural adhesive is solidified, so that the embedded steel bar is more stable and firm and cannot fall off from the hole.

Description

Technical Field

[0001] The utility model relates to the technical field of drill pipes, in particular to a special drill bit for a new type of enhanced post-embedded part. Background Technique

[0002] When implanting steel bars into concrete components, it is necessary to drill holes in the concrete first to facilitate the implantation of the steel bars. For example, in a drill pipe for a concrete core drill for adjustable road detection disclosed in Chinese patent literature (Patent No.: CN202220926513.5), the surface of the drill pipe is smooth. During the drilling process, the inner wall of the hole drilled by the drill pipe is relatively smooth. When implanting steel bars and structural adhesive into the above hole, due to the relatively smooth inner wall of the hole, the friction between the structural adhesive and the inner wall of the hole is limited, resulting in insufficient fixing strength of the implanted steel bars.

[0003] Therefore, we propose a special drill bit for a new type of enhanced post-embedded part. Content of the Utility Model

[0004] The purpose of the utility model is to provide a special drill bit for a new type of enhanced post-embedded part to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A special drill bit for a new type of enhanced post-embedded part, including a drill pipe. A drill pipe cylinder is arranged in the middle of the drill pipe. A first alloy blade is arranged at the top of the drill pipe. A second alloy blade is arranged on the upper part of the surface of the drill pipe. A groove is arranged on the lower part of the surface of the drill pipe.

[0006] Further, the second alloy blade is arranged at a ninety-degree angle to the first alloy blade.

[0007] Further, the second alloy blade is arranged at the middle position between the drill pipe cylinder and the first alloy blade.

[0008] Further, the drill pipe at the lower part of the drill pipe cylinder is set to be square, and grooves are arranged on each side of the square drill pipe.

[0009] Compared with the prior art, the beneficial effect of the utility model is: On the basis of the hole drilled by an ordinary drill pipe, use this drill pipe to extend into the already drilled hole for secondary drilling. During the drilling process of this drill pipe, the drill pipe itself will vibrate. The vibration of the drill pipe itself causes the second alloy blade arranged on the upper part of the surface of the drill pipe to drill grooves on the inner wall of the hole. After implanting steel bars into the hole and pouring structural adhesive, due to the grooves on the inner wall of the hole, after the structural adhesive solidifies, the friction between the structural adhesive and the inner wall of the hole is increased, so that the implanted steel bars are more stable and firm and will not fall off from the hole. Brief Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of the drill pipe of the utility model;

[0011] Figure 2 This is a schematic diagram of the drilling structure of the concrete member of the present utility model.

[0012] In the figure: 1, drill pipe; 2, drill pipe cylinder; 3, first alloy cutting edge; 4, groove; 5, second alloy cutting edge. Specific implementation manners

[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0014] Please refer to Figure 1-2 , the present utility model provides a technical solution: a new type of special drill bit for enhanced post-embedded parts, including a drill pipe 1, a drill pipe cylinder 2 is arranged in the middle of the drill pipe 1, a first alloy cutting edge 3 is arranged at the top of the drill pipe 1, a second alloy cutting edge 5 is arranged on the upper part of the surface of the drill pipe 1, and a groove 4 is arranged on the lower part of the surface of the drill pipe 1. When using the drill pipe 1 to drill a hole in a concrete member, first use an ordinary drill pipe to drill a hole in the concrete member to drill a hole with a smooth inner wall. Then use this drill pipe 1 to extend into the drilled hole for secondary drilling. During the drilling process of this drill pipe 1, the drill pipe 1 itself will vibrate. The vibration of the drill pipe 1 itself causes the second alloy cutting edge arranged on the upper part of the surface of the drill pipe 1 to drill a groove on the inner wall of the hole. After implanting steel bars and pouring structural adhesive into the hole, due to the groove on the inner wall of the hole, the structural adhesive, after solidification, increases the friction between the structural adhesive and the inner wall of the hole, so that the implanted steel bars are more stable and firm and will not fall off from the hole.

[0015] Among them, the second alloy cutting edge 5 and the first alloy cutting edge 3 are arranged at a right angle. The second alloy cutting edge 3 is arranged at the middle position between the drill pipe cylinder 2 and the first alloy cutting edge 3. During the drilling process of the drill pipe 1, the drill pipe 1 itself vibrates and the drill pipe 1 slightly shakes. The second alloy cutting edge 5 arranged on the drill pipe 1 drills a groove on the inner wall of the hole drilled by the ordinary drill pipe. After implanting steel bars and structural adhesive, the steel bars are more stable;

[0016] The drill pipe 1 below the drill pipe cylinder 2 is set to be square, and grooves are arranged on each side of the square of the drill pipe 1.

[0017] Working principle: Use an ordinary drill pipe to drill a hole in a concrete member. First, drill a hole with a smooth inner wall. Then, insert this drill pipe 1 into the drilled hole to perform a secondary drilling. During the drilling process of this drill pipe 1, the drill pipe 1 itself will vibrate. The vibration of the drill pipe 1 causes the second alloy cutting edges provided on the upper part of the surface of the drill pipe 1 to drill grooves on the inner wall of the hole. After implanting steel bars into the hole and pouring structural adhesive, due to the grooves on the inner wall of the hole, after the structural adhesive solidifies, the friction between the structural adhesive and the inner wall of the hole is increased, so that the implanted steel bars are more stable and firm and will not fall off from the hole.

[0018] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel enhanced post-embedded special drill bit, comprising a drill rod (1), characterized in that: A drill rod cylinder (2) is arranged in the middle of the drill rod (1), a first alloy blade (3) is arranged at the top of the drill rod (1), a second alloy blade (5) is arranged at the upper surface of the drill rod (1), and a groove (4) is arranged at the lower surface of the drill rod (1).

2. A new type of reinforced post-embedded special drill bit according to claim 1, characterized in that: The second alloy blade (5) is arranged at a 90-degree angle with the first alloy blade (3).

3. A new type of reinforced post-embedded special drill bit according to claim 1, characterized in that: The second alloy blade (5) is arranged at a middle position between the drill rod cylinder (2) and the first alloy blade (3).

4. A new type of reinforced post-embedded special drill bit according to claim 1, characterized in that: The drill rod (1) at the lower part of the drill rod cylinder (2) is arranged in a square shape, and each side surface of the square of the drill rod (1) is provided with a groove.

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