Drill bit for drilling holes in ceramic tiles

Abstract

The utility model relates to a drill bit for ceramic tile drilling, which belongs to the technical field of drill bits and comprises a barrel and a tool bit, a connecting column is mounted at the top of the barrel, a connector is mounted at the top of the connecting column, the tool bit is connected to the bottom of the barrel, a plurality of convex teeth and concave teeth which are alternately arranged are arranged on the tool bit, and the convex teeth and the concave teeth form a wavy structure on the tool bit. A water storage cavity is formed in the barrel, a water injection opening is formed in the side wall of the connecting column, a through water injection channel is arranged between the water injection opening and the water storage cavity, and a one-way valve structure is installed at the joint of the water storage cavity and the water injection channel. The tool bit made of the integrally-formed diamond alloy material is arranged at the bottom of the barrel, so that tool bit abrasion caused by falling of diamond sand is avoided, the service life is prolonged, and the durability is improved; the convex teeth and the concave teeth are alternately arranged on the tool bit, so that the tapping time is short; the water storage cavity is formed in the cylinder to absorb heat, the one-way valve structure is installed to prevent internal cooling water from spilling out when the drill bit rotates, heat dissipation of the drill bit is faster, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a drill bit used for drilling holes in ceramic tiles. Background Art

[0002] During the use of ceramic tiles, it is often necessary to drill holes in specific locations. Tile drilling devices are widely used in home decoration, building renovation, bathroom installation, and other fields to drill holes in tile surfaces to install faucets, pendants, handles, etc. They provide an efficient, accurate, and safe drilling solution, preventing tile cracking or damage and improving construction efficiency.

[0003] Drill bits are typically cylindrical, so their cutting heads are also typically cylindrical. The high-speed rotation of the drill bit creates friction between the working surface of the cutting head and the object, thereby drilling or cutting the object. However, existing drill bits often have the cutting head brazed with corundum. This causes severe overheating during continuous drilling, resulting in significant wear and tear, and the corundum easily falls off. This makes it difficult for the drill bit to drill holes in tile surfaces, resulting in a short service life and poor long-term use. Utility Model Content

[0004] The purpose of the utility model is to provide a drill bit for drilling holes in ceramic tiles, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A drill bit for drilling holes in tiles comprises a barrel and a cutter head, a connecting column being installed on the top of the barrel, a connecting head being installed on the top of the connecting column, the cutter head being connected to the bottom of the barrel, the cutter head being provided with a plurality of convex teeth and concave teeth arranged alternately, the convex teeth and concave teeth forming a wavy structure on the cutter head, a water storage cavity being provided inside the barrel, a water injection port being provided on the side wall of the connecting column, a through water injection channel being provided between the water injection port and the water storage cavity, and a one-way valve structure being installed at the connection between the water storage cavity and the water injection channel.

[0007] Preferably, the water injection channel passes through the top of the cylinder and the side wall of the connecting column.

[0008] Preferably, the one-way valve structure includes a conical cylinder, a spring and a solid ball. The conical cylinder is a hollow structure with a circular groove on the top and a water outlet on the side wall. The conical cylinder is installed in the water storage chamber, and the circular groove is connected to the water injection channel. One end of the spring is fixedly installed at the bottom of the conical cylinder, and the solid ball is placed on the other end of the spring and is engaged with the top of the conical cylinder and in closed contact with the circular groove. The sizes of the circular groove and the water outlet are both smaller than those of the solid ball.

[0009] Preferably, at least one water outlet is provided on the side wall of the conical column.

[0010] Preferably, a pressure rod groove is provided in the connecting head and the connecting column, which passes through the connecting head and the connecting column and is connected to the water injection channel. A pressure rod is movably installed in the pressure rod groove. The bottom of the pressure rod is located in the water injection channel and contacts the solid ball. A pressure plate is provided at the bottom of the pressure rod. The size of the pressure plate is smaller than the size of the water injection channel and larger than the size of the pressure rod groove.

[0011] Preferably, the convex teeth and concave teeth on the cutter head are made of an integrally formed diamond alloy material.

[0012] Preferably, the bottom of the water storage chamber is connected to the top of the cutter head, and the top of the cutter head is a dome-shaped structure, which is convenient for crushing and removing chips from the waste in the cutter head after drilling.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model provides a cutter head made of an integrally formed diamond alloy at the bottom of the cylinder, which avoids wear of the cutter head caused by the shedding of diamond sand, thereby improving the service life and durability; the cutter head is provided with convex teeth and concave teeth arranged alternately, which shortens the hole opening time and improves work efficiency; the interior of the cutter head adopts a dome structure to facilitate the crushing and chip removal of waste materials in the cutter head after drilling; a water storage chamber is provided inside the cylinder to absorb heat, and a one-way valve structure is installed to prevent the internal cooling water from spilling out when the drill bit rotates, so that the drill bit can dissipate heat faster, reduce the wear of the drill bit, can work continuously, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0017] Figure 3 This is an internal cross-sectional view of the utility model when it is working;

[0018] Figure 4 This is an internal cross-sectional view of the utility model when water is injected;

[0019] Figure 5 This is a schematic diagram of the one-way valve structure of the present utility model.

[0020] Reference numerals

[0021] 1. Cylinder, 2. Cutting head, 3. Connecting head, 4. Connecting column, 5. Water inlet, 6. Water injection channel, 7. Conical column, 8. Spring, 9. Solid ball, 10. Water outlet, 11. Water storage chamber, 12. Circular groove, 13. Convex teeth, 14. Concave teeth, 15. Pressure rod, 16. Pressure rod groove. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0023] like Figure 1-5 As shown, a drill bit for drilling holes in tiles includes a barrel 1 and a cutter head 2. The cutter head 2 is connected to the bottom of the barrel 1. A connecting column 4 is installed on the top of the barrel 1. A connecting head 3 is installed on the top of the connecting column 4. The connecting head 3 is used to connect to an external drive device to drive the drill bit to rotate.

[0024] The cutter head is provided with a plurality of alternately arranged convex teeth 13 and concave teeth 14, which form a wavy structure on the cutter head. The convex teeth 13 and concave teeth 14 on the cutter head are made of an integrally formed diamond alloy material, which increases hardness and is more wear-resistant.

[0025] A water storage chamber 11 is provided inside the cylinder 1, and the bottom of the water storage chamber 11 is connected to the top of the cutter head 2. The top of the cutter head 2 is a dome-shaped structure, which is convenient for crushing and removing chips from the waste material in the cutter head 2 after drilling.

[0026] A water injection port 5 is provided on the side wall of the connecting column 4 , and a through water injection channel 6 is provided between the water injection port 5 and the water storage chamber 11 . The water injection channel 6 passes through the top of the cylinder 1 and the side wall of the connecting column 4 .

[0027] A one-way valve structure is installed at the connection between the water storage chamber 11 and the water injection channel 6. The one-way valve structure includes a conical cylinder 7, a spring 8 and a solid ball 9. The conical cylinder 7 is a hollow structure with a circular groove 12 on the top and a water outlet 10 on the side wall. The conical cylinder 7 is installed in the water storage chamber 11, and the circular groove 12 is connected to the water injection channel 6. One end of the spring 8 is fixedly installed at the bottom of the conical cylinder 7. The solid ball 9 is placed on the other end of the spring 8 and is engaged with the top of the conical cylinder 7 in closed contact with the circular groove 12. The sizes of the circular groove 12 and the water outlet 10 are both smaller than those of the solid ball 9.

[0028] A pressure rod groove 16 is provided in the connecting head 3 and the connecting column 4, which passes through the connecting head 3 and the connecting column 4 and is connected to the water injection channel 6. A pressure rod 15 is movably installed in the pressure rod groove 16. The bottom of the pressure rod 15 is located in the water injection channel 6 and contacts the solid ball 9. A pressure plate is provided at the bottom of the pressure rod 15. The size of the pressure plate is smaller than the size of the water injection channel 6 and larger than the size of the pressure rod groove 16 to prevent the pressure rod from falling out.

[0029] The working principle of this utility model:

[0030] Before using the drill bit, the pressure rod 15 is pressed so that the pressure plate at the bottom of the pressure rod 15 presses down the solid ball 9. The solid ball 9 sinks and separates from the circular groove 12 through the spring 8. The water pipe is aligned with the water inlet 5 to inject cooling water or other heat-dissipating liquid. After the cooling water enters the water injection channel 6 through the water inlet 5, it passes through the circular groove 12 at the top of the conical column 7 and enters the water storage chamber 11 from the water outlet 10 on the side wall of the conical column 7. After the water injection is completed, the spring 8 drives the solid ball 9 to rise and support the circular groove 12 of the conical column 7, and the pressure rod 15 is driven to rise accordingly. The solid ball 9 and the circular groove 12 form a closed structure to prevent the internal cooling water from spilling out when the drill bit rotates. When the drill bit is working, the cooling water in the water storage chamber 11 absorbs the heat of the drill teeth 2 to accelerate the heat dissipation of the drill bit.

[0031] The utility model provides an integrally formed diamond alloy cutter head 2 at the bottom of the cylinder 1, thereby avoiding wear of the cutter head 2 caused by falling of diamond sand, thereby improving service life and durability; the cutter head 2 is provided with convex teeth 13 and concave teeth 14 arranged alternately, which shortens the hole drilling time and improves work efficiency; the interior of the cutter head 2 adopts a dome structure to facilitate crushing and chip removal of waste materials in the cutter head 2 after drilling; a water storage chamber 11 is provided inside the cylinder 1 to absorb heat, and a one-way valve structure is installed to prevent internal cooling water from spilling out when the drill bit rotates, so that the drill bit can dissipate heat faster, reduce wear of the drill bit, can work continuously, and improve work efficiency.

[0032] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A drill bit for drilling ceramic tiles, characterized by: It includes a cylinder and a cutter head, a connecting column is installed on the top of the cylinder, a connecting head is installed on the top of the connecting column, and the cutter head is connected to the bottom of the cylinder. A number of convex teeth and concave teeth are arranged alternately on the cutter head, and the convex teeth and concave teeth form a wavy structure on the cutter head. A water storage cavity is provided inside the cylinder, and a water injection port is opened on the side wall of the connecting column. A through water injection channel is provided between the water injection port and the water storage cavity, and a one-way valve structure is installed at the connection between the water storage cavity and the water injection channel.

2. A drill bit for drilling ceramic tiles according to claim 1, characterized in that: The water injection channel passes through the top of the cylinder and the side wall of the connecting column.

3. A drill bit for drilling ceramic tiles according to claim 2, characterized in that: The one-way valve structure includes a conical cylinder, a spring and a solid ball. The conical cylinder is a hollow structure with a circular groove on the top and a water outlet on the side wall. The conical cylinder is installed in the water storage cavity, and the circular groove is connected to the water injection channel. One end of the spring is fixedly installed at the bottom of the conical cylinder, and the solid ball is placed on the other end of the spring and is engaged with the top of the conical cylinder and in closed contact with the circular groove. The sizes of the circular groove and the water outlet are both smaller than those of the solid ball.

4. A drill bit for drilling ceramic tiles according to claim 3, characterized in that: At least one water outlet is provided on the side wall of the conical column.

5. A drill bit for drilling ceramic tiles according to claim 4, characterized in that: A pressure rod groove is provided in the connecting head and the connecting column, which passes through the connecting head and the connecting column and is connected to the water injection channel. A pressure rod is movably installed in the pressure rod groove. The bottom of the pressure rod is located in the water injection channel and contacts the solid ball. A pressure plate is provided at the bottom of the pressure rod. The size of the pressure plate is smaller than the size of the water injection channel and larger than the size of the pressure rod groove.

6. The drill bit for drilling ceramic tiles according to claim 1, characterized in that: The convex teeth and concave teeth on the cutter head are made of an integrally formed diamond alloy material.

7. The drill bit for drilling ceramic tiles according to claim 1, characterized in that: The bottom of the water storage chamber is connected to the top of the cutter head, and the top of the cutter head is a dome-shaped structure.

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