Multifunctional diamond drill bit

Abstract

The utility model relates to a multifunctional diamond drill bit which comprises a tool apron, a plurality of annularly distributed diamond tool bits are installed at one end of the tool apron, heat dissipation grooves are formed in the diamond tool bits, and a plurality of annularly distributed installation holes are formed in the side wall of the end, close to the diamond tool bits, of the tool apron. A hollow mounting seat is fixedly mounted on the bottom wall of the mounting hole, during drilling, stone entering the tool apron can push a wear-resisting plate, so that a sliding plate is extruded to slide into the mounting seat, the round stone can smoothly enter the tool apron, and when the sliding plate slides into an inner cavity of the mounting seat, a first spring is extruded to contract, so that the round stone can enter the tool apron smoothly; and at the moment, the first spring reversely pushes the sliding plate to move under the action of self elastic force, so that the multiple wear-resisting plates are matched with one another to clamp the stone entering the tool apron, and the problem that when the tool apron is pulled out after drilling is completed, the stone in the tool apron is likely to slide into a drill hole, and use by a user is very inconvenient is solved as much as possible.

Description

Technical Field

[0001] This utility model belongs to the field of drill bit technology, specifically relating to a multifunctional diamond drill bit. Background Technology

[0002] Currently, diamond drilling technology is widely used in domestic geological exploration and construction. Among them, impregnated diamond drill bits consist of a matrix with diamonds embedded in the drill bit crown and a diamond body connected to it. Impregnated diamond drill bits are mainly used for the extraction of central rock during the construction of highways, railways, municipal engineering, water conservancy and hydropower, geological exploration, mineral exploration, hydrogeological surveys and other engineering projects.

[0003] Existing diamond drill bits have a simple structure and limited function. When the drill bit is pulled out after drilling, the stone inside the drill bit easily slips into the hole, causing great inconvenience to the user. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional diamond drill bit with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A multifunctional diamond drill bit includes a tool holder with multiple annularly distributed diamond cutting tips mounted on one end. The diamond cutting tips have heat dissipation grooves. Multiple annularly distributed mounting holes are formed on the side wall of the tool holder near the diamond cutting tips. A hollow mounting base is fixedly mounted on the bottom wall of each mounting hole. A sliding plate is slidably mounted on the side wall of the mounting base near the center of the tool holder. A wear-resistant plate is fixedly connected to the end of the sliding plate outside the mounting base. First springs are fixedly connected to both sides of the end of the sliding plate inside the mounting base. The ends of the first springs away from the wear-resistant plate are fixed to the inner wall of the mounting base. The mounting base also has an adjustment structure for adjusting the position of the wear-resistant plate.

[0007] As a further optimization of this utility model, a connector is fixedly connected to the end of the tool holder away from the diamond tool head. The outer diameter of the connector is smaller than the outer diameter of the tool holder, and the outer surface of the connector is provided with an external thread that is opposite to the rotation direction of the diamond tool head during operation.

[0008] As a further optimization of this utility model, the mounting base has a sliding hole on the side wall near the center of the tool holder, the size of which is adapted to the cross-sectional size of the sliding plate, and the sliding plate passes through the side wall of the mounting base through the sliding hole.

[0009] As a further optimization of this utility model, the wear-resistant plate has an arc-shaped structure, the inner diameter of the bottom end of the wear-resistant plate gradually decreases from the inner diameter of the top end of the wear-resistant plate, and anti-slip texture is provided on the side of the wear-resistant plate away from the sliding plate.

[0010] As a further optimization of this utility model, an elliptical adjusting ring is fixedly connected to the slide plate between the two first springs. The adjusting structure includes an adjusting slide rod that slides through the top wall of the mounting base. One end of the adjusting slide rod located in the inner cavity of the mounting base is fixedly connected to an inclined plate, and the bottom end of the inclined plate slides into the adjusting ring.

[0011] As a further optimization of this utility model, a button is fixedly connected to the top of the adjusting slide rod, and a second spring is sleeved on the adjusting slide rod between the button and the top wall of the mounting base. The two ends of the second spring are respectively fixed to the bottom wall of the button and the top wall of the mounting base.

[0012] The beneficial effects of this utility model are as follows: When drilling, the stone entering the cutter holder will push the wear-resistant plate, thereby squeezing the sliding plate to slide into the mounting base, so that the round stone can smoothly enter the cutter holder. When the sliding plate slides into the inner cavity of the mounting base, it will compress the first spring to contract. At this time, the first spring pushes the sliding plate to move in the opposite direction under its own elastic force, so that multiple wear-resistant plates cooperate to clamp the stone entering the cutter holder, thus avoiding the problem that the stone inside the cutter holder will easily slip into the drill hole when the cutter holder is pulled out after drilling is completed, which would cause great inconvenience to the user. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a utility model Figure 1 A schematic diagram of the first cross-sectional structure;

[0015] Figure 3 This is a utility model Figure 2 Enlarged view of a close-up detail at point A in the middle;

[0016] Figure 4 This is a utility model Figure 1 A schematic diagram of the second cross-sectional structure;

[0017] Figure 5 This is a utility model Figure 4 Enlarged view of a detail at point B in the middle.

[0018] In the diagram: 1. Tool holder; 2. Diamond tool tip; 3. Heat sink; 4. Connector; 5. Mounting hole; 6. Mounting base; 7. Slide plate; 8. Wear-resistant plate; 9. First spring; 10. Adjusting ring; 11. Adjusting slide rod; 12. Inclined plate; 13. Second spring. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example

[0021] like Figure 1 - Figure 5 As shown, a multifunctional diamond drill bit includes a tool holder 1 with multiple annularly distributed diamond cutting heads 2 installed at one end. The diamond cutting heads 2 are provided with heat dissipation grooves 3. By providing heat dissipation grooves 3 on the diamond cutting heads 2, heat dissipation can be achieved through the heat dissipation grooves 3 when the diamond cutting heads 2 are working, so as to avoid damage to the diamond cutting heads 2 due to excessive temperature during drilling.

[0022] A connector 4 is fixedly connected to the end of the tool holder 1 away from the diamond cutter head 2. The outer diameter of the connector 4 is smaller than the outer diameter of the tool holder 1, and the outer surface of the connector 4 is provided with an external thread that is opposite to the rotation direction of the diamond cutter head 2 when it is working. The connector 4 is provided to connect the tool holder 1 to the output end of the external drive device through the external thread, which facilitates the installation and disassembly of the entire diamond drill bit. The external thread on the outer surface of the connector 4 is opposite to the rotation direction of the diamond cutter head 2 when it is working, which can minimize the risk of the connector 4 becoming loose from the output end of the external drive device during the drilling process.

[0023] The tool holder 1 has multiple annularly distributed mounting holes 5 on one side wall near the diamond tool tip 2. A hollow mounting base 6 is fixedly installed on the bottom wall of the mounting holes 5. A sliding hole is provided on one side wall of the mounting base 6 near the center of the tool holder 1. A sliding plate 7 with a cross-sectional size that matches the size of the inner cavity of the sliding hole slides through the sliding hole. When the sliding plate 7 is subjected to force, it can slide into or out of the mounting base 6 through the sliding hole.

[0024] A wear-resistant plate 8 is fixedly connected to one end of the sliding plate 7 outside the mounting base 6. The wear-resistant plate 8 has an arc-shaped structure, and the inner diameter of the bottom end of the wear-resistant plate 8 gradually decreases to the inner diameter of the top end of the wear-resistant plate 8, so that a slope is formed between the bottom end and the top end of the wear-resistant plate 8. When drilling, the round stone material entering the cutter holder 1 will push the wear-resistant plate 8 under the squeezing action of the slope, thereby squeezing the sliding plate 7 to slide into the mounting base 6, so that the round stone material can smoothly enter the cutter holder 1. The side of the wear-resistant plate 8 away from the sliding plate 7 is provided with anti-slip texture, which is used to increase the friction between the wear-resistant plate 8 and the stone material entering the cutter holder 1 through the anti-slip texture.

[0025] The slide plate 7 is located in the inner cavity of the mounting base 6 and is fixedly connected to both sides of the first spring 9. The end of the first spring 9 away from the wear-resistant plate 8 is fixed to the inner wall of the mounting base 6. When the slide plate 7 slides into the inner cavity of the mounting base 6, it will squeeze the first spring 9 to contract. At this time, the first spring 9 pushes the slide plate 7 to move in the opposite direction under its own elastic force. After drilling is completed, the stone in the cutter holder 1 can be clamped by the pushing force of the first spring 9 and multiple wear-resistant plates 8, so that the stone in the cutter holder 1 cannot slip off from the bottom of the cutter holder 1. This avoids the problem that the stone inside the cutter holder 1 will easily slip into the drill hole when the cutter holder 1 is pulled out after drilling is completed, which would cause great inconvenience to the user.

[0026] An elliptical adjusting ring 10 is fixedly connected to the slide plate 7 between the two first springs 9. The mounting base 6 is also provided with an adjusting structure for adjusting the position of the wear-resistant plate 8. The adjusting structure includes an adjusting slide rod 11 that slides through the top wall of the mounting base 6. One end of the adjusting slide rod 11 located in the inner cavity of the mounting base 6 is fixedly connected to an inclined plate 12. The bottom end of the inclined plate 12 extends into the adjusting ring 10. When it is necessary to discharge the stone material clamped between multiple wear-resistant plates 8, the user can push the adjusting slide rod 11 into the mounting base 6. The adjusting slide rod 11 drives the inclined plate 12 to move into the adjusting ring 10. The inclined surface of the inclined plate 12 cooperates with the inner wall of the adjusting ring 10 to push the slide plate 7 into the mounting base 6 until the wear-resistant plate 8 is separated from the stone material located in the cutter holder 1. At this time, the stone material loses the clamping effect of the wear-resistant plate 8 and can be discharged from the bottom end of the cutter holder 1 under its own gravity.

[0027] A button is fixedly connected to the top of the adjusting slide rod 11. A second spring 13 is sleeved on the adjusting slide rod 11 between the button and the top wall of the mounting base 6. The two ends of the second spring 13 are fixed to the bottom wall of the button and the top wall of the mounting base 6, respectively. When the user pushes the adjusting slide rod 11 into the mounting base 6 through the button, the button will squeeze the second spring 13 to retract. When the user releases the button, the second spring 13 will push the adjusting slide rod 11 back to its original position under its own elastic force, which is convenient for drilling work to be carried out again.

[0028] It should be noted that, in use, this multi-functional diamond drill bit connects the drill holder 1, with the diamond cutter head 2 mounted on one end, to the output end of an external drive device via a connector 4. The external drive device then rotates the diamond cutter head 2 to perform drilling. During drilling, the round stone entering the drill holder 1 is pushed by the inclined surface between the bottom and top of the wear-resistant plate 8, causing the sliding plate 7 to slide into the mounting base 6. This allows the round stone to smoothly enter the drill holder 1. As the sliding plate 7 slides into the inner cavity of the mounting base 6, it compresses the first spring 9, causing it to contract. At this time, the first spring 9, under its own elastic force, pushes the sliding plate 7 in the opposite direction, causing the stone to move smoothly into the mounting base 1. Multiple wear-resistant plates 8 work together to clamp the stone material entering the cutter holder 1, minimizing the risk of the stone material slipping into the drill hole when the cutter holder 1 is pulled out after drilling, which would cause great inconvenience to the user. When it is necessary to remove the stone material clamped in the cutter holder 1, the user can push the adjusting slide rod 11 into the mounting base 6. The adjusting slide rod 11 drives the inclined plate 12 to move into the adjusting ring 10. The inclined surface of the inclined plate 12, in conjunction with the inner wall of the adjusting ring 10, pushes the sliding plate 7 into the mounting base 6 until the wear-resistant plates 8 are separated from the stone material in the cutter holder 1. At this point, the stone material loses the clamping effect of the wear-resistant plates 8 and can be discharged from the bottom of the cutter holder 1 under its own gravity.

[0029] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A multifunctional diamond drill bit, comprising a tool holder (1) with a plurality of annularly distributed diamond cutting heads (2) mounted at one end, wherein the diamond cutting heads (2) are provided with heat dissipation grooves (3), characterized in that: The tool holder (1) has multiple annularly distributed mounting holes (5) on the side wall near the diamond cutter head (2). A hollow mounting base (6) is fixedly installed on the bottom wall of the mounting holes (5). A sliding plate (7) is slidably inserted on the side wall of the mounting base (6) near the center of the tool holder (1). A wear-resistant plate (8) is fixedly connected to the end of the sliding plate (7) outside the mounting base (6). A first spring (9) is fixedly connected to both sides of the end of the sliding plate (7) inside the cavity of the mounting base (6). The end of the first spring (9) away from the wear-resistant plate (8) is fixed to the inner wall of the mounting base (6). The mounting base (6) is also provided with an adjustment structure for adjusting the position of the wear-resistant plate (8).

2. The multifunctional diamond drill bit according to claim 1, characterized in that: The end of the tool holder (1) away from the diamond cutter head (2) is fixedly connected to a connector (4). The outer diameter of the connector (4) is smaller than the outer diameter of the tool holder (1), and the outer surface of the connector (4) is provided with an external thread that is opposite to the rotation direction of the diamond cutter head (2) when it is working.

3. A multifunctional diamond drill bit according to claim 1, characterized in that: The mounting base (6) has a sliding hole on one side wall near the center of the knife holder (1), the size of which is adapted to the cross-sectional size of the slide plate (7). The slide plate (7) passes through the sliding hole through the side wall of the mounting base (6).

4. A multifunctional diamond drill bit according to claim 1, characterized in that: The wear-resistant plate (8) has an arc-shaped structure. The inner diameter of the bottom end of the wear-resistant plate (8) gradually decreases from the inner diameter of the top end of the wear-resistant plate (8). Anti-slip texture is provided on the side of the wear-resistant plate (8) away from the sliding plate (7).

5. A multifunctional diamond drill bit according to claim 1, characterized in that: An elliptical adjusting ring (10) is fixedly connected to the slide plate (7) between the two first springs (9). The adjusting structure includes an adjusting slide rod (11) that slides through the top wall of the mounting base (6). One end of the adjusting slide rod (11) located in the inner cavity of the mounting base (6) is fixedly connected to an inclined plate (12). The bottom end of the inclined plate (12) slides into the adjusting ring (10).

6. A multifunctional diamond drill bit according to claim 5, characterized in that: A button is fixedly connected to the top of the adjusting slide (11). A second spring (13) is sleeved on the adjusting slide (11) between the button and the top wall of the mounting base (6). The two ends of the second spring (13) are fixed to the bottom wall of the button and the top wall of the mounting base (6), respectively.

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