Drill bit connecting structure convenient to mount and dismount

Abstract

The utility model relates to the technical field of drill bits, and particularly discloses a drill bit connecting structure convenient to mount and dismount, which comprises a drill rod, a limiting ring fixedly connected to one side wall of the drill rod, a drill handle fixedly connected to one side wall of the limiting ring, a connecting seat fixedly connected to the other side wall of the drill rod, and mounting blocks fixedly connected to the left side and the right side of one end of the connecting seat. Mounting grooves are formed in the front faces of the mounting blocks. A mounting ring adopted by the first tool bit is in threaded connection with a fixing bolt in a mounting groove, so that the first tool bit can be detached through threads, and therefore the first tool bit is convenient to assemble and disassemble, and a second tool bit is connected with a connecting hole in a connecting base through a connecting block; and secondly, a mounting bolt is adopted to be connected with a connecting block, the mounting bolt penetrates through the interior of the second tool bit, so that the second tool bit is convenient to disassemble, and arc-shaped grooves in the two sides of the second tool bit are connected with the mounting block, so that the second tool bit can be limited when the second tool bit is used.

Description

TECHNICAL FIELD

[0001] The utility model relates to drill bit technical field, concretely is a drill bit connecting structure convenient to installation dismounting. BACKGROUND

[0002] The module drill bit has become the mainstream and development direction of hole processing drill bit, and the structure of general module drill bit (such as Iska drill bit) is that the drill rod front end is provided with drill tip installation groove, and the drill tip is arranged in the installation groove, and the installation groove of present module drill bit generally includes positioning groove and guide portion, the positioning groove includes positioning round hole and anti-falling device, in order to facilitate installation, the diameter of positioning round hole is greater than the core thickness of drill rod, so that the positioning round hole is divided into 180 ° center symmetry 2 segment circular arcs, the guide portion is located at the upper end of positioning groove, and the diameter of guide portion is greater than the diameter of positioning hole, and the guide portion is also divided into 180 ° center symmetry 2 segment circular arcs.

[0003] In this way, the installation groove becomes two relatively long circular arcs, and the drill tip is provided with positioning block and installation guide portion matched with the installation groove, so that the strength of the installation groove is affected, the installation groove is easily deformed or broken during the working process of the drill bit, and the service life of the drill bit is short. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides a drill bit connecting structure convenient to installation dismounting, and solves the problems that the installation groove is easily deformed or broken during the working process of the drill bit, and the service life of the drill bit is short.

[0005] To achieve the above object, the utility model discloses the following technical scheme: a drill bit connecting structure convenient to installation dismounting, including drill rod, the side wall of drill rod is fixedly connected with the limiting ring, one side wall of the limiting ring is fixedly connected with the drill handle, the other side wall of drill rod is fixedly connected with the connecting seat, the left and right sides of one end of connecting seat are fixedly connected with the installation block, and the front surface of installation block is provided with the installation groove.

[0006] Preferably, one side of the installation groove is provided with a first tool bit, one side wall of the first tool bit is fixedly connected with an installation ring, and the installation ring is connected with the installation groove, one side wall of the installation block is provided with a fixed bolt, the fixed bolt penetrates the inside of a pair of installation blocks, one side of the installation block is provided with a connecting hole, and the connecting hole is connected with the connecting seat.

[0007] Preferably, the outer wall of the fixed bolt is threadedly connected with a threaded groove, and the threaded groove is arranged on the left and right sides of the pair of installation blocks, one side of the installation block is provided with a second tool bit, and one side wall of the second tool bit is fixedly connected with a pair of connecting blocks.

[0008] Preferably, the inside of the connecting seat is provided with a pair of mounting holes, and the mounting holes are connected with the connecting holes, a pair of the mounting holes are rotationally connected with a pair of mounting bolts, and the mounting bolts are connected with the connecting blocks.

[0009] Preferably, the material of the drill rod is duplex stainless steel, and the material of the drill handle is aluminum alloy. Advantages

[0010] The utility model provides a drill bit connecting structure convenient to install and disassemble, which has the following advantages compared with the prior art:

[0011] (1) the first cutter head is connected with the fixing bolt in the mounting groove through the mounting ring, so that the first cutter head can be disassembled by screwing, thereby facilitating assembly and disassembly of the first cutter head; the second cutter head is connected with the connecting hole in the connecting seat through the connecting block, and the connecting block is connected with the connecting block through the mounting bolt; since the mounting bolt penetrates the inside of the second cutter head, the second cutter head is convenient to disassemble; the arc-shaped grooves on the two sides of the second cutter head are connected with the mounting block, thereby limiting the second cutter head during use; since the first cutter head and the second cutter head are connected in different ways, the drill bit can be replaced according to the use condition, thereby eliminating the need for workers to prepare multiple drill handles for replacement, thereby improving work efficiency; the drill rod and the drill handle are made of duplex stainless steel and aluminum alloy respectively; duplex stainless steel has the characteristics of austenitic and ferritic stainless steel, high strength and corrosion resistance; aluminum alloy has the characteristics of small density, high strength, good plasticity, excellent electrical conductivity and thermal conductivity, good corrosion resistance and easy processing. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a schematic view of the first cutter head connecting structure of the embodiment of the utility model;

[0013] Fig. 2 It is a schematic view of the second cutter head connecting structure of the embodiment of the utility model;

[0014] Fig. 3 It is a schematic view of the inside structure of the connecting seat of the embodiment of the utility model.

[0015] In the figure: 1, drill rod; 2, limiting ring; 3, drill handle; 4, connecting seat; 5, mounting block; 6, mounting groove; 7, first cutter head; 8, mounting ring; 9, fixing bolt; 10, connecting hole; 11, threaded groove; 12, second cutter head; 13, connecting block; 14, mounting hole; 15, mounting bolt. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model. Embodiment 1

[0017] Please refer to Figs. 1-3 In the embodiment, a drill bit connecting structure convenient to mount and dismount is provided, which comprises a drill rod 1, a limiting ring 2 is fixedly connected to one side wall of the drill rod 1, a drill handle 3 is fixedly connected to one side wall of the limiting ring 2, a connecting seat 4 is fixedly connected to the other side wall of the drill rod 1, mounting blocks 5 are fixedly connected to the left and right sides of one end of the connecting seat 4, and mounting grooves 6 are formed in the front faces of the mounting blocks 5. Since the connecting seat 4 is adopted, the first cutter head 7 and the second cutter head 12 can be mounted respectively, and the mounting blocks 5 can assemble the first cutter head 7.

[0018] A first cutter head 7 is arranged on one side of the mounting groove 6, a mounting ring 8 is fixedly connected to one side wall of the first cutter head 7, and the mounting ring 8 is connected with the mounting groove 6, the mounting ring 8 with the first cutter head 7 can be assembled by using a fixing bolt 9, and the fixing bolt 9 needs to be removed by the staff, so that the first cutter head 7 can be replaced.

[0019] A fixing bolt 9 is arranged on one side wall of the mounting block 5, and the fixing bolt 9 penetrates the interiors of the pair of mounting blocks 5, a connecting hole 10 is arranged on one side of the mounting block 5, and the connecting hole 10 is connected with the connecting seat 4, since the connecting hole 10 is adopted, the connecting block 13 can be guided, so that the second cutter head 12 is connected with the connecting seat 4.

[0020] A threaded groove 11 is threadedly connected to the outer wall of the fixing bolt 9, and the threaded groove 11 is arranged on the left and right sides of the pair of mounting blocks 5, a second cutter head 12 is arranged on one side of the mounting block 5, a pair of connecting blocks 13 are fixedly connected to one side wall of the second cutter head 12, since the connecting block 13 is used, the second cutter head 12 is connected with the connecting seat 4, the pair of connecting blocks 13 are connected with mounting bolts 15, and when being replaced, the mounting bolt 15 is inserted into the connecting hole 10 from the second cutter head 12 and is connected with the mounting hole 14.

[0021] A pair of mounting holes 14 are formed in the interior of the connecting seat 4, and the mounting hole 14 is connected with the connecting hole 10, a pair of mounting bolts 15 are rotatably connected in the interiors of the pair of mounting holes 14, and the mounting bolt 15 is connected with the connecting block 13, since the mounting bolt 15 is adopted, the second cutter head 12 can be fixed, and the mounting block 5 can assist in limiting the second cutter head 12.

[0022] The material of the drill rod 1 is duplex stainless steel, and the material of the drill handle 3 is aluminum alloy, the duplex stainless steel has the characteristics of austenitic and ferritic stainless steel, has high strength and corrosion resistance, and the aluminum alloy has the characteristics of small density, high strength, good plasticity, excellent electrical conductivity and thermal conductivity, good corrosion resistance and easy processing, thereby increasing the service life.

[0023] In use, when the first cutter head 7 needs to be replaced, the fixing bolt 9 is removed, the first cutter head 7 is shaken left and right, so that the mounting ring 8 is separated from the mounting groove 6, when the first cutter head 7 needs to be installed, reverse operation is needed, when the second cutter head 12 needs to be replaced, the connecting block 13 is aligned with the connecting hole 10, the mounting bolt 15 penetrates the inside of the second cutter head 12 and the connecting block 13, and is screw-connected with the mounting hole 14, so that the second cutter head 12 can be installed, when the second cutter head 12 needs to be replaced, the mounting bolt 15 is removed, the second cutter head 12 is pulled out outward by the staff, so that the second cutter head 12 is replaced.

[0024] The above disclosed preferred embodiments of the utility model are only used for helping to set forth the utility model. The preferred embodiments do not describe all the details, and also do not limit the utility model to the specific implementation mode. Apparently, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the technical personnel in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A drill bit connection structure that facilitates installation and removal, characterized by: Including drill pipe (1), one side wall of drill pipe (1) is fixedly connected with limit ring (2), one side wall of limit ring (2) is fixedly connected with drill handle (3), the other side wall of drill pipe (1) is fixedly connected with connecting seat (4), and the left and right sides of one end of connecting seat (4) are fixedly connected with mounting block (5), and the front surface of mounting block (5) is provided with mounting groove (6).

2. The drill bit connection structure of claim 1, wherein: One side of mounting groove (6) is provided with first tool bit (7), one side wall of first tool bit (7) is fixedly connected with mounting ring (8), and mounting ring (8) and mounting groove (6) are connected with each other, one side wall of mounting block (5) is provided with fixed bolt (9), and fixed bolt (9) penetrates the inside of a pair of mounting blocks (5), one side of mounting block (5) is provided with connecting hole (10), and connecting hole (10) and connecting seat (4) are connected with each other.

3. The drill bit connection structure of claim 2, wherein: The outer wall of fixed bolt (9) is threadedly connected with threaded groove (11), and threaded groove (11) is arranged on the left and right sides of a pair of mounting blocks (5), one side of mounting block (5) is provided with second tool bit (12), one side wall of second tool bit (12) is fixedly connected with a pair of connecting blocks (13).

4. The drill bit connection structure of claim 3, wherein: A pair of mounting holes (14) are formed in the inside of connecting seat (4), and mounting hole (14) and connecting hole (10) are connected with each other, a pair of mounting holes (14) are rotatably connected with a pair of mounting bolts (15) in the inside, and mounting bolt (15) and connecting block (13) are connected with each other.

5. The drill bit connection structure of claim 1, wherein: The material of drill pipe (1) adopts duplex stainless steel, and the material of drill handle (3) adopts aluminum alloy.

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