Novel improved twist self-drilling screw

Abstract

The utility model relates to the technical field of twist self-drilling screws, in particular to a novel improved twist self-drilling screw. The improved twist self-drilling screw comprises a screw tap, a twist drill is arranged at the bottom of the screw tap, an inner hexagonal groove is formed in the top of the screw tap, a hexagonal prism is arranged in the inner hexagonal groove, and a screw rod is arranged at the top of the hexagonal prism. After the locking bolt is unscrewed, the hexagonal prism can slide up and down in the inner hexagonal prism groove, then the distance between the screw rod and the screw tap is changed, the effect of rapidly adjusting the overall length of the twist self-drilling screw is achieved, and then the twist self-drilling screw can rapidly adapt to different use requirements. The hexagonal prism can be fixed in the inner hexagonal prism groove by screwing the locking bolt in the mounting hole and the threaded hole, and the length of the whole twist self-drilling screw can be adjusted conveniently and quickly by screwing or unscrewing the locking bolt, so that the use convenience of the twist self-drilling screw is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of twist self-drilling screws, in particular to a novel improved twist self-drilling screw. Background Art

[0002] The tail of the twist drill screw is in the shape of a drill tail or a pointed tail. It does not require auxiliary processing and can be directly drilled, tapped, and locked on the material or base material, greatly saving construction time. Compared with ordinary screws, it has higher toughness and retention force, and will not loosen after being assembled for a long time. It is safe to use and can be easily operated by drilling and tapping in one go.

[0003] However, most of the common twist drill screws on the market are integrally formed, and their length cannot be adjusted. Therefore, when facing different working conditions, twist drill screws of different lengths need to be selected, which is not convenient to use. In view of the above situation, technical innovation is carried out on the basis of the existing twist drill screws. Utility Model Content

[0004] The utility model aims to provide a novel and improved twist drill screw to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a new improved twist drill screw, comprising:

[0006] A tap, wherein a twist drill is provided at the bottom of the tap, and an inner hexagonal groove is provided at the top of the tap, wherein:

[0007] A hexagonal column is arranged in the inner hexagonal groove, a screw rod is arranged on the top of the hexagonal column, and a hexagonal nut is arranged on the top of the screw rod.

[0008] Preferably, the screw is located above the tap, and the top of the hexagonal column passes through the inner hexagonal groove and is connected to the screw.

[0009] Preferably, a mounting hole is opened on the front side of the tap, the mounting hole is connected to the inner hexagonal groove, and the mounting hole is located above the outer side wall of the tap.

[0010] Preferably, threaded holes are evenly formed on the front side of the hexagonal prism, and the threaded holes are aligned with the mounting holes.

[0011] Preferably, a locking bolt is provided in the mounting hole, and the locking bolt is threadedly connected to the threaded hole.

[0012] Preferably, the tap and twist drill are integrally formed by cutting, and the hexagonal nut, screw rod and threaded hole are integrally formed by cutting.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model can make the hexagonal column slide up and down in the inner hexagonal groove after the locking bolt is loosened, thereby changing the distance between the screw rod and the tap, thereby achieving the effect of quickly adjusting the overall length of the twist drill screw, thereby making the twist drill screw quickly adapt to different use requirements;

[0015] By tightening the locking bolt into the mounting hole and the threaded hole, the hexagonal prism can be fixed in the inner hexagonal groove. The complete twist drill screw is composed of a tap, a twist drill, a hexagonal prism, a screw rod and a hexagonal nut. The length of the entire twist drill screw can be adjusted conveniently, which can be quickly completed by tightening or loosening the locking bolt, thereby improving the convenience of using the twist drill screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a new improved twist drill screw of the utility model;

[0017] Figure 2 It is a right side cross-sectional view of a novel improved twist drill screw of the utility model;

[0018] Figure 3 For this utility model Figure 2 Sectional view of part A.

[0019] In the figure: 1, tap; 11, twist drill; 12, locking bolt; 13, hexagonal prism; 14, threaded hole; 15, screw rod; 16, hexagonal socket; 17, hexagonal nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3A novel improved twist drill tail screw comprises a tap 1, a twist drill 11 is fixedly arranged at the bottom of the tap 1, a hexagonal groove 16 is provided at the top of the tap 1, a hexagonal column 13 is slidably arranged in the hexagonal groove 16, a screw 15 is fixedly arranged at the top of the hexagonal column 13, a hexagonal nut 17 is fixedly arranged at the top of the screw 15, a mounting hole is provided at the front side of the tap 1, the mounting hole is connected to the hexagonal groove 16, the mounting hole is located above the outer wall of the tap 1, threaded holes 14 are evenly provided at the front side of the hexagonal column 13, the threaded holes 14 are aligned with the mounting holes, and a locking bolt is rotatably arranged in the mounting hole 12, the locking bolt 12 is threadedly connected with the threaded hole 14, and the locking bolt 12 is tightened in the mounting hole and the threaded hole 14, so that the hexagonal prism 13 can be fixed in the inner hexagonal groove 16. The tap 1, the twist drill 11, the hexagonal prism 13, the screw 15 and the hexagonal nut 17 form a complete twist drill screw. After the locking bolt 12 is loosened, the hexagonal prism 13 can slide up and down in the inner hexagonal groove 16, thereby changing the distance between the screw 15 and the tap 1, thereby achieving the effect of quickly adjusting the overall length of the twist drill screw, so that the twist drill screw can be quickly adapted to different usage requirements.

[0022] The screw 15 is located above the tap 1, the top of the hexagonal prism 13 passes through the inner hexagonal groove 16 and is connected to the screw 15, the tap 1 and the twist drill 11 are cut and formed in one piece, and the hexagonal nut 17, the screw 15 and the threaded hole 14 are cut and formed in one piece.

[0023] Working principle: by tightening the locking bolt 12 into the mounting hole and the threaded hole 14, the hexagonal prism 13 can be fixed in the inner hexagonal groove 16. The complete twist drill screw is composed of the tap 1, the twist drill 11, the hexagonal prism 13, the screw 15 and the hexagonal nut 17. After loosening the locking bolt 12, the hexagonal prism 13 can slide up and down in the inner hexagonal groove 16, thereby changing the distance between the screw 15 and the tap 1, thereby achieving the effect of quickly adjusting the overall length of the twist drill screw, so that the twist drill screw can be quickly adapted to different usage requirements.

Claims

1. A new and improved twist drill screw, It is characterized in that include: A tap (1), wherein a twist drill (11) is provided at the bottom of the tap (1), and a hexagonal groove (16) is provided at the top of the tap (1), wherein: A hexagonal column (13) is arranged in the inner hexagonal groove (16), a screw rod (15) is arranged on the top of the hexagonal column (13), and a hexagonal nut (17) is arranged on the top of the screw rod (15).

2. A novel improved twist drill screw according to claim 1, Features: The screw rod (15) is located above the tap (1), and the top of the hexagonal column (13) passes through the internal hexagonal groove (16) and is connected to the screw rod (15).

3. A new and improved twist drill screw according to claim 1, Features: A mounting hole is provided on the front side of the tap (1), the mounting hole being connected to the internal hexagonal groove (16), and the mounting hole being located above the outer side wall of the tap (1).

4. A novel improved twist drill screw according to claim 3, Features: The front side of the hexagonal prism (13) is evenly provided with threaded holes (14), and the threaded holes (14) are aligned with the mounting holes.

5. A novel improved twist drill screw according to claim 4, Features: A locking bolt (12) is arranged in the mounting hole, and the locking bolt (12) is threadedly connected to the threaded hole (14).

6. A new and improved twist drill screw according to claim 1, Features: The tap (1) and the twist drill (11) are integrally formed by cutting, and the hexagonal nut (17), the screw rod (15) and the threaded hole (14) are integrally formed by cutting.

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