Drill bit convenient to disassemble and assemble

Abstract

The utility model mainly relates to the technical field of drill bits, in particular to a drill bit convenient to disassemble and assemble, which comprises a connecting end, the connecting end is provided with a connecting structure matched with the installation position of external drilling equipment for use, one side of the connecting end is fixedly connected with a connecting piece, one side of the connecting piece is fixedly connected with a drill rod, and the other side of the connecting piece is fixedly connected with a drill rod. A spiral groove is formed in the outer surface of the drill rod, and a drill bit is fixedly connected to the tail end of the drill rod; the first hand-screwing bolt penetrates through the connecting hole to preliminarily fix the drill bit and the drilling equipment, and then the second hand-screwing bolt penetrates through the connecting hole and the through hole in the first hand-screwing bolt to be locked and fixed again, so that the drill bit is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of drill bits, and specifically relates to a drill bit that is convenient for disassembly and assembly. Background Technique

[0002] A drill bit is a tool used to drill through holes or blind holes in solid materials and can also ream existing holes. It is usually fixedly connected to the output end of a drilling device. Drill bits can be divided into those for rough machining and those for fine machining. Drill bits for rough machining generally have a large cutting amount, while drill bits for fine machining have a smaller cutting amount and finer chips.

[0003] However, the existing drill bits still have the following deficiencies: the connection between the drill bit and the drilling device is relatively troublesome, and it is also inconvenient to disassemble later.

[0004] Therefore, it is necessary to design a drill bit that is convenient for disassembly and assembly to solve the above-mentioned problems. Content of the Utility Model

[0005] The utility model mainly provides a drill bit that is convenient for disassembly and assembly, so as to solve the technical problems raised in the above background technique.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0007] A drill bit that is convenient for disassembly and assembly includes a connection end, a connection structure for cooperating with the installation position of an external drilling device is arranged on the connection end, a connecting piece is fixedly connected to one side of the connection end, a drill pipe is fixedly connected to one side of the connecting piece, a spiral groove is opened on the outer surface of the drill pipe, and a drill bit is fixedly connected to the end of the drill pipe.

[0008] Further, the connection structure includes two connection holes that are cross-opened on the connection end, and a first hand-tightening bolt and a second hand-tightening bolt are respectively threadedly connected inside the two connection holes.

[0009] Further, through holes are opened through the upper parts of the first hand-tightening bolt and the second hand-tightening bolt, and the second hand-tightening bolt passes through the through hole on the first hand-tightening bolt for connection.

[0010] Further, the first hand-tightening bolt and the second hand-tightening bolt include a bolt handle at the top, a bolt shank is fixedly connected to the bottom of the bolt handle, and a bolt rod is fixedly connected to the bottom of the bolt shank.

[0011] Further, an internal thread groove is opened on one side of the connection end where the drill pipe is located, a threaded rod is fixedly connected to the side of the connecting piece away from the drill pipe, and the threaded rod is threadedly connected with the internal thread groove.

[0012] Further, anti-corrosion layers are provided on the outer surfaces of the connection end, the drill pipe, and the drill bit, and an anti-corrosion coating is applied on the outer surface of the anti-corrosion layer.

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

[0014] 1. By means of the connection structure provided in the present utility model, when installing the drill bit and the drilling equipment, first pass the first hand-tightening bolt through the connection hole to preliminarily fix the drill bit and the drilling equipment, and then pass the second hand-tightening bolt through the connection hole and the through hole on the first hand-tightening bolt for re-locking and fixing, thereby facilitating the disassembly and assembly of the drill bit.

[0015] 2. By providing an anti-corrosion layer on the outer surface of the drill bit, the corrosion resistance effect of the drill bit can be improved, enabling it to be used for drilling in special environments, avoiding corrosion of the drill bit due to contact with water or other liquids, and extending its service life.

[0016] The present utility model will be explained and described in detail below in conjunction with the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a three-dimensional structure diagram of the present utility model after partial decomposition;

[0019] Figure 3 is a three-dimensional diagram of the first hand-tightening bolt and the second hand-tightening bolt of the present utility model;

[0020] Figure 4 is a schematic diagram of the internal structure of the connection end of the present utility model.

[0021] In the figure: 1, connection end; 2, connection structure; 21, connection hole; 22, first hand-tightening bolt; 23, second hand-tightening bolt; 24, through hole; 25, bolt handle; 26, bolt shank; 27, bolt rod; 3, connecting piece; 4, drill pipe; 5, spiral groove; 6, drill bit; 7, internal thread groove; 8, threaded rod; 9, anti-corrosion layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings, but the present utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0023] Embodiment, please refer to the attached Figures 1-4As shown in the figure, a drill bit that is easy to disassemble and assemble includes a connection end 1. A connection structure 2 that is used in cooperation with the installation position of an external drilling device is provided on the connection end 1. One side of the connection end 1 is fixedly connected to a connection member 3. One side of the connection member 3 is fixedly connected to a drill pipe 4. A spiral groove 5 is formed on the outer surface of the drill pipe 4. The end of the drill pipe 4 is fixedly connected to a drill bit 6.

[0024] Among them, the connection structure 2 includes two connection holes 21 that are cross-opened on the connection end 1. A first hand-tightening bolt 22 and a second hand-tightening bolt 23 are respectively threadedly connected to the interiors of the two connection holes 21. Through holes 24 are formed through the upper parts of the first hand-tightening bolt 22 and the second hand-tightening bolt 23, and the second hand-tightening bolt 23 passes through the through hole 24 on the first hand-tightening bolt 22 for connection. The first hand-tightening bolt 22 and the second hand-tightening bolt 23 include a bolt handle 25 at their tops. The bottom of the bolt handle 25 is fixedly connected to a bolt shank 26. The bottom of the bolt shank 26 is fixedly connected to a bolt rod 27. First, the first hand-tightening bolt 22 is passed through the connection hole 21 to preliminarily fix the drill bit 6 and the drilling equipment. Then, the second hand-tightening bolt 23 is passed through the connection hole 21 and the through hole 24 on the first hand-tightening bolt 22 for re-locking and fixing, thereby facilitating the disassembly and assembly of the drill bit.

[0025] Among them, an internal thread groove 7 is formed on one side of the connection end 1 where the drill pipe 4 is located. A threaded rod 8 is fixedly connected to the side of the connection member 3 away from the drill pipe 4. The threaded rod 8 is threadedly connected to the internal thread groove 7, and its thread direction is the same as the drilling direction. The connection between the connection end 1 and the drill pipe 4 is achieved by threaded connection between the threaded rod 8 and the internal thread groove 7, which facilitates the replacement of the drill pipe 4.

[0026] Among them, an anti-corrosion layer 9 is provided on the outer surfaces of the connection end 1, the drill pipe 4, and the drill bit 6. An anti-corrosion coating is coated on the outer surface of the anti-corrosion layer 9. It can improve the corrosion resistance effect of the drill bit 6, enable it to be used for drilling in special environments, avoid the corrosion of the drill bit 6 due to contact with water or other liquids, and extend its service life.

[0027] The specific operation method of the present utility model is as follows:

[0028] First, the operator first passes the first hand-tightening bolt 22 through the connection hole 21 to preliminarily fix the drill bit 6 and the drilling equipment. Then, the second hand-tightening bolt 23 is passed through the connection hole 21 and the through hole 24 on the first hand-tightening bolt 22 for re-locking and fixing, thereby facilitating the disassembly and assembly of the drill bit. And an anti-corrosion layer 9 is provided on the outer surfaces of the connection end 1, the drill pipe 4, and the drill bit 6. An anti-corrosion coating is coated on the outer surface of the anti-corrosion layer 9. It can improve the corrosion resistance effect of the drill bit 6, enable it to be used for drilling in special environments, avoid the corrosion of the drill bit 6 due to contact with water or other liquids, and extend its service life.

[0029] The above has made an exemplary description of the present utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A drill bit that is easy to assemble and disassemble, comprising a connecting end (1), characterized in that: The connection end (1) is provided with a connection structure (2) for use with an external drilling equipment installation position, one side of the connection end (1) is fixedly connected to a connection piece (3), one side of the connection piece (3) is fixedly connected to a drill rod (4), an outer surface of the drill rod (4) is provided with a spiral groove (5), and a drill bit (6) is fixedly connected to the end of the drill rod (4).

2. The drill bit that is easy to assemble and disassemble according to claim 1, characterized in that: The connection structure (2) comprises two connection holes (21) cross-opened at the connection end (1), and the interiors of the two connection holes (21) are respectively threadedly connected with a first hand-tightened bolt (22) and a second hand-tightened bolt (23).

3. The drill bit that is easy to assemble and disassemble according to claim 2, characterized in that: A through hole (24) is formed on the top of the first hand-tightening bolt (22) and the second hand-tightening bolt (23), and the second hand-tightening bolt (23) penetrates the through hole (24) on the first hand-tightening bolt (22) for connection.

4. The drill bit that is easy to assemble and disassemble according to claim 2, characterized in that: The first hand-tightened bolt (22) and the second hand-tightened bolt (23) comprise a bolt handle (25) located at the top thereof, the bottom of the bolt handle (25) is fixedly connected to a bolt shank (26), and the bottom of the bolt shank (26) is fixedly connected to a bolt rod (27).

5. The drill bit that is easy to assemble and disassemble according to claim 1, characterized in that: An internal thread groove (7) is formed on one side of the connection end (1) located on the drill rod (4), and a threaded rod (8) is fixedly connected to the side of the connection piece (3) away from the drill rod (4), wherein the threaded rod (8) and the internal thread groove (7) are threadedly connected.

6. The drill bit that is easy to assemble and disassemble according to claim 1, characterized in that: The outer surfaces of the connecting end (1), the drill rod (4) and the drill bit (6) are provided with an anti-corrosion layer (9), and the outer surface of the anti-corrosion layer (9) is coated with an anti-corrosion coating.

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