Powerful tapper drill bit with detachable and replaceable connecting rod

Abstract

The utility model discloses a powerful tapper drill bit with a detachable and replaceable connecting rod, the powerful tapper drill bit with the detachable and replaceable connecting rod comprises the connecting rod and a drill bit, the connecting rod is provided with a nut part, the nut part is provided with a threaded rod, and the drill bit is in threaded connection with the threaded rod and abuts against the nut part. The connecting rod and the drill bit are manufactured through a precision casting technology. The drill bit and the connecting rod are designed in a split mode, the production speed of the two parts can be increased conveniently through the precision casting technology, the difficulty and complexity of integrated manufacturing are reduced, quick connection is achieved through the threaded rod, drill bits of different diameters or connecting rods of different heights are freely matched according to use scenes, and the production efficiency is improved. And the product has the advantages of good practicability, reduced resource waste rate, improved production efficiency and the like.

Description

Technical Field

[0001] This utility model relates to the field of drill bit technology, and in particular to a powerful hole opener drill bit with a detachable and replaceable connecting rod. Background Technology

[0002] Hole saws are drilling devices primarily used to create holes in slabs, stone, or concrete slabs. They are commonly used during road repairs or the construction of power towers to drill holes in concrete foundations for the secure installation of road infrastructure or power towers.

[0003] Existing hole saw drill bits include a drill head and a connecting rod connected to the drill head. Since the diameter of the drill head and the height of the drill rod are fixed, if the depth of the hole to be drilled and the diameter of the hole to be drilled are large, the user needs to purchase different specifications of hole saw drill bits in advance, which greatly increases the user's cost. Furthermore, existing hole saw drill bits are manufactured by milling a carbon steel base on a lathe, which results in slow processing speed, long delivery cycle, and increased manufacturing cost. Therefore, the applicant has made a beneficial design and found a solution to the above problems. The technical solution to be introduced below is generated in this context. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the traditional hole opener drill bit design and to provide a product that is practical, reduces resource waste, and improves production efficiency.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A powerful hole opener drill bit with a detachable and replaceable connecting rod includes a connecting rod and a drill bit. The connecting rod has a nut portion and a threaded rod. The drill bit is threadedly connected to the threaded rod and abuts against the nut portion. The connecting rod and the drill bit are manufactured by precision casting.

[0007] Preferably, the end face of the drill bit is provided with a countersunk hole, and the countersunk hole is provided with a sharp-shaped breaking head.

[0008] Preferably, the end face of the drill bit is provided with a plurality of cutting heads evenly distributed around the breaker head as the axis, and the cutting heads are provided with a threaded chip removal groove.

[0009] Preferably, the cutter head and countersunk hole are provided with a plurality of cutting blocks, and the cutting blocks are provided with cutting edges on both sides.

[0010] Preferably, the other end face of the drill bit is provided with a plurality of pressure-bearing grooves evenly distributed around a dot as the axis.

[0011] Beneficial effects:

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] (1) This utility model enables the drill bit and the connecting rod to be quickly connected by a screw. It can not only freely match drill bits of different diameters or connecting rods of different heights according to different usage scenarios, but also greatly reduce the need to purchase different specifications of hole opener drill bits in advance, thus reducing user costs. It can also quickly and freely assemble a hole opener drill bit suitable for the site according to the site conditions, increasing the practicality and convenience of the product. At the same time, it can also quickly replace the drill bit with a new one after the drill bit wears out, reducing the waste rate of resources.

[0014] (2) This utility model, by designing the drill bit and connecting rod separately, facilitates the production of the two parts through precision casting process, reduces the amount of mold design, reduces the difficulty and complexity of integrated manufacturing, overcomes the shortcomings of the prior art in processing the hole opener drill bit by milling technology, thereby speeding up production, reducing delivery cycle and reducing manufacturing cost. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a powerful hole opener drill bit with a detachable and replaceable connecting rod according to the present invention;

[0016] Figure 2 This is an exploded view of the structure of a powerful hole opener drill bit with a detachable and replaceable connecting rod according to the present invention.

[0017] The correspondence between the labels and component names in the attached figures is as follows:

[0018] Reference numerals: 1. Connecting rod; 2. Drill bit; 3. Cutting block; 11. Nut part; 12. Threaded rod; 13. Pressure groove; 21. Countersunk hole; 22. Crushing head; 23. Cutting head; 24. Chip removal groove; 31. Cutting edge. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0022] Reference example Figure 1 , Figure 2 A powerful hole opener drill bit with a detachable and replaceable connecting rod includes a connecting rod 1 and a drill bit 2. The connecting rod 1 has a nut part 11, and the nut part 11 has a threaded rod 12. The drill bit 2 is threadedly connected to the threaded rod 12 and abuts against the nut part 11. The connecting rod 1 and the drill bit 2 are manufactured by precision casting. The drill bit 2 and the connecting rod 1 are quickly connected by a screw. This not only allows for the free combination of drill bits 2 of different diameters or connecting rods 1 of different heights according to different usage scenarios, greatly reducing the need to purchase different specifications of hole opener drill bits 2 in advance, reducing user costs, but also allows for the quick and free assembly of a hole opener drill bit 2 suitable for the site conditions, increasing the practicality and convenience of the product. At the same time, it also allows for quick replacement of a new drill bit 2 after it wears out, reducing resource waste. The split design of the drill bit 2 and the connecting rod 1 facilitates the production of the two parts through precision casting, reduces the amount of mold design, and reduces the difficulty and complexity of integrated manufacturing.

[0023] It is worth mentioning that the end face of the drill bit 2 is provided with a countersunk hole 21, and the countersunk hole 21 is provided with a sharp breaking head 22. The breaking head 22 breaks the ground first and embeds itself in the ground, providing a positioning function for the rotation of the drill bit 2.

[0024] It is worth mentioning that the end face of the drill bit 2 is evenly distributed with several cutting heads 23 around the axis of the breaker head 22. There are threaded chip removal grooves 24 between the cutting heads 23. The cutting heads 23 cut the material surface that produces holes, accelerate the disintegration of the structural strength between multiple holes, and break it into multiple small pieces. The small pieces of debris are discharged to the surface of the material through the chip removal grooves 24.

[0025] It is worth mentioning that the cutter head 23 and the countersunk hole 21 are provided with several cutting blocks 3. The cutting blocks 3 are provided with cutting edges 31 on both sides. The cutting blocks 3 protrude from the surface of the cutter head 23 and the countersunk hole 21. The cutting edges 31 are responsible for cutting the material surface and forming multiple holes of different diameters.

[0026] It is worth mentioning that the other end face of the drill bit 2 is provided with several pressure-bearing grooves 13 evenly distributed around the dot as the axis. The pressure-bearing grooves 13 increase the transmission efficiency and transmission torque of the drive shaft to the connecting rod 1.

[0027] The above design scheme can enable the product to achieve the advantages of good practicality, reduced resource waste rate, and improved production efficiency.

[0028] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A powerful hole opener drill bit with a detachable and replaceable connecting rod, comprising a connecting rod (1) and a drill bit (2), characterized in that: The connecting rod (1) is provided with a nut part (11), the nut part (11) is provided with a threaded rod (12), the drill bit (2) is threadedly connected to the threaded rod (12) and abuts against the nut part (11), and the connecting rod (1) and the drill bit (2) are made by precision casting process.

2. The heavy-duty hole opener drill bit with a detachable and replaceable connecting rod according to claim 1, characterized in that: The end face of the drill bit (2) is provided with a countersunk hole (21), and the countersunk hole (21) is provided with a sharp-shaped breaking head (22).

3. The heavy-duty hole opener drill bit with a detachable and replaceable connecting rod according to claim 2, characterized in that: The end face of the drill bit (2) is provided with a plurality of cutting heads (23) evenly distributed around the breaker head (22) as the axis, and the cutting heads (23) are provided with a threaded chip removal groove (24).

4. The heavy-duty hole opener drill bit with a detachable and replaceable connecting rod according to claim 3, characterized in that: The cutter head (23) and countersunk hole (21) are provided with a plurality of cutting blocks (3), and the cutting blocks (3) are provided with cutting edges (31) on both sides.

5. The heavy-duty hole opener drill bit with a detachable and replaceable connecting rod according to claim 1, characterized in that: The other end face of the drill bit (2) is provided with several pressure-bearing grooves (13) evenly distributed around the dot as the axis.

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