Geological prospecting drilling bit

Abstract

The invention discloses a geological prospecting drilling bit, and belongs to the technical field of drill bits for geological prospecting. Comprising a shell and an inner entity which are fixedly connected. An insertion groove is formed in the inner wall of the shell, a connecting block is fixedly connected to the inner solid body, a sliding groove is formed in the connecting block, the elastic insertion assembly is located in the sliding groove, and the elastic insertion assembly is inserted into the insertion groove; the connecting block is provided with an operating rod fixedly connected with the elastic inserting assembly. The threaded connecting column is fixedly connected to the lower end of the drill rod, the threaded connecting column is fixedly connected with the shell through threads, and the threaded connecting column is pressed above the connecting block; a limiting groove is formed in the bottom of the threaded connecting column, and the operating rod is located in the limiting groove. According to the drill bit, the drill bit is divided into the inner solid body and the outer shell, waste of materials can be reduced when the drill bit is replaced, and meanwhile the outer shell and the inner solid body can be conveniently detached through the elastic inserting-connecting assembly.

Description

Technical Field

[0001] The invention provides a geological prospecting drilling bit, belonging to the technical field of geological prospecting drill bits. Background Art

[0002] Geological prospecting is a crucial task for obtaining information on underground mineral resources and assessing their reserves and quality. Drilling is a key step in this process, and the drill bit is a core tool for efficient and precise drilling. During geological prospecting drilling operations, the drill bit must navigate a variety of complex geological conditions, including hard rock layers, loose soil layers, and strata containing corrosive substances. During the drilling process, the drill bit experiences intense friction and collision with rock and other media, subjecting it to immense pressure and wear.

[0003] Currently, the common geological prospecting drill bits on the market have relatively traditional structural designs. The external components of the drill bit, particularly the cutting edges that come into direct contact with the rock, are susceptible to wear during extended drilling. As wear increases, the drill bit's drilling efficiency decreases significantly, speeds slow, and energy consumption increases.

[0004] When the exterior of a drill bit wears, due to its integrated design, it's often necessary to replace the entire drill bit. This is because the various components of a drill bit are often integrated, making them difficult to disassemble and replace. Even if only the outer cutting portion of the drill bit is worn, the entire drill bit must be discarded. This replacement method results in significant material waste and increases drilling costs. For large-scale geological exploration projects, the material costs associated with frequent replacement of the entire drill bit are a significant expense and are not in line with the requirements of resource conservation and sustainable development.

[0005] Therefore, it is necessary to improve the geological prospecting drilling bit and design a new structure that can replace only the worn part when the outer part of the drill bit is worn, without replacing the entire drill bit, so as to reduce material waste and reduce drilling costs. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that for a drill bit with a traditional integrated design, when the outer surface of the drill bit is worn, the entire drill bit often needs to be replaced, which easily causes waste of materials.

[0007] In order to solve the above problems, the present invention proposes a technical solution: a geological prospecting drilling bit, comprising an outer shell and an inner body; the outer shell is fixedly connected to the drill rod by threads, the inner body corresponds to the shape of the interior of the outer shell, the inner body is located inside the outer shell, and the inner body is fixedly connected to the outer shell; and further comprising:

[0008] An elastic plug assembly; a slot is provided on the inner wall of the housing, a connecting block is fixedly connected to the inner body, a slide groove is provided in the connecting block, the elastic plug assembly is located in the slide groove, and the elastic plug assembly is inserted into the slot; an operating rod is provided on the connecting block and is fixedly connected to the elastic plug assembly;

[0009] A threaded connection column is fixedly connected to the lower end of the drill pipe, the threaded connection column is fixedly connected to the shell through threads, and the threaded connection column is pressed above the connecting block; a limiting groove is provided at the bottom of the threaded connection column, and the operating rod is located in the limiting groove.

[0010] As an improvement, the elastic plug-in assembly includes an insert rod, a slider, a spring, and a sliding rod; the slider is slidably arranged in the sliding groove, the insert rod is fixedly connected to one side of the slider, and the insert rod passes through the connecting block and is inserted into the slot; the sliding rod is fixedly connected to the other side of the slider, the spring is located in the sliding groove, and the spring is sleeved on the sliding rod.

[0011] As an improvement, a guide hole connected to the sliding groove is opened in the connecting block, and the sliding rod is slidably inserted into the guide hole; the spring has a reserved compression amount.

[0012] As an improvement, a guide groove connected to the slide groove is provided on the upper surface of the connecting block, the operating rod is located in the guide groove, and the operating rod is fixedly connected to the slider.

[0013] As an improvement, the limiting groove is annular, two groups of sliding grooves and elastic plug-in components are provided, and both operating rods are located in the limiting groove.

[0014] As an improvement, a groove is provided at the bottom of the threaded connection column, and a pull rod fixedly connected to the connection block is inserted into the groove.

[0015] As an improvement, the exterior of the shell is coated with a wear-resistant protective layer.

[0016] Beneficial effects of the present invention:

[0017] 1. The shape of the inner entity corresponds to that of the inner shell, the inner entity is located inside the outer shell, and the inner entity is fixedly connected to the outer shell; the present application splits a drill bit into two parts, the inner entity and the outer shell; the inner entity can support the outer shell, thereby ensuring the rigidity and hardness of the entire drill bit; at the same time, when the drill bit is worn, only the outer shell needs to be disassembled and replaced, and the inner entity does not need to be replaced, thereby reducing material waste.

[0018] 2. A slot is provided on the inner wall of the shell, and the elastic plug-in component is inserted into the slot; the shell and the inner entity are fixedly connected by providing the elastic plug-in component and the slot. Compared with the traditional threaded connection method, disassembly is more convenient, thereby improving work efficiency.

[0019] 3. The threaded connection column is pressed above the connection block, and a limit groove is provided at the bottom of the threaded connection column, and the operating rod is located in the limit groove; when the drill rod is connected to the drill bit, the limit groove in the threaded connection column can limit and fix the operating rod, thereby ensuring the stability of the elastic plug-in assembly and preventing the problem of unstable connection between the outer shell and the inner entity when the drill bit is used for drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present invention.

[0021] Figure 2 It is a bottom view of the present invention.

[0022] Figure 3 It is a cross-sectional view of the housing of the present invention.

[0023] Figure 4 It is a connection explosion diagram of the present invention.

[0024] Figure 5 It is a partial cross-sectional view of the connecting block of the present invention.

[0025] 1. Outer shell; 2. Drill rod; 3. Slot; 4. Insert rod; 5. Inner body; 6. Connecting block; 7. Threaded connecting column; 8. Groove;

[0026] 9. Limiting groove; 10. Operating lever; 11. Guide groove; 12. Pull rod; 13. Slide groove; 14. Slider; 15. Spring; 16. Sliding rod; 17. Guide hole. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] according to Figure 1-5 As shown: The present invention provides a geological prospecting drilling bit: comprising an outer shell 1 and an inner body 5; the outer shell 1 is coated with a wear-resistant protective layer, which can increase the wear resistance of the drill bit; the outer shell 1 is fixedly connected to the drill rod 2 by threads, and the inner body 5 corresponds to the shape of the interior of the outer shell 1, is located inside the outer shell 1, and the inner body 5 is fixedly connected to the outer shell 1; the entire drill bit is composed of the outer shell 1 and the inner body 5, and when the drill bit is worn, only the outer shell 1 needs to be replaced, which can reduce material waste. At the same time, the setting of the inner body 5 can ensure the rigidity and strength of the overall drill bit.

[0029] like Figure 3 、 5 As shown, a slot 3 is formed on the inner wall of the housing 1, a connecting block 6 is fixedly connected to the inner body 5, a slide groove 13 is formed in the connecting block 6, the elastic plug assembly is located in the slide groove 13, and the elastic plug assembly is inserted into the slot 3; an operating rod 10 is provided on the connecting block 6 and fixedly connected to the elastic plug assembly;

[0030] like Figure 5 As shown, the elastic plug assembly includes an insert rod 4, a slider 14, a spring 15, and a sliding rod 16; the slider 14 is slidably arranged in the slide groove 13, the insert rod 4 is fixedly connected to one side of the slider 14, and the insert rod 4 passes through the connecting block 6 and is inserted into the slot 3; the sliding rod 16 is fixedly connected to the other side of the slider 14, the spring 15 is located in the slide groove 13, and the spring 15 is sleeved on the sliding rod 16. By providing an elastic plug assembly, when the outer shell 1 and the inner body 5 are disassembled, the two can be quickly separated, thereby improving replacement efficiency. A guide hole 17 connected to the slide groove 13 is opened in the connecting block 6, and the sliding rod 16 is slidably inserted into the guide hole 17; the spring 15 has a reserved compression amount. When the outer shell 1 is connected to the connecting block 6, the spring 15 with the reserved compression amount can continuously exert pressure on the slider 14, thereby increasing the stability of the insert rod 4 inserted into the slot 3. The upper surface of the connecting block 6 is provided with a guide groove 11 connected to the slide groove 13, and the operating rod 10 is located in the guide groove 11, and the operating rod 10 is fixedly connected to the slider 14. The setting of the operating rod 10 can facilitate the sliding control of the slider 14 by the staff.

[0031] like Figure 4 As shown, the threaded connection column 7 is fixedly connected to the lower end of the drill rod 2, and the threaded connection column 7 is fixedly connected to the outer shell 1 by threads, and the threaded connection column 7 is pressed above the connecting block 6; a limiting groove 9 is provided at the bottom of the threaded connection column 7, and the operating rod 10 is located in the limiting groove 9. The limiting groove 9 can limit the operating rod 10 and the slider 14, thereby ensuring the stability of the connection between the outer shell 1 and the inner entity 5 when the drill bit is connected to the drill rod 2. The limiting groove 9 is annular, and there are two groups of slide grooves 13 and elastic plug-in components, and both operating rods 10 are located in the limiting groove 9. A groove 8 is provided at the bottom of the threaded connection column 7, and a pull rod 12 fixedly connected to the connecting block 6 is inserted into the groove 8. The setting of the pull rod 12 can facilitate the connection block 6 and the inner entity 5 to be directly pulled out from the outer shell 1.

[0032] like Figure 1 、 2 Figures 3 and 4 are diagrams of the drill bit in normal use. The inner body 5 and the outer shell 1 are fixedly connected via the slot 3 and the insert rod 4, thereby ensuring the integrity of the drill bit and not affecting its normal working state. When the outer surface of the drill bit is worn and needs to be replaced, the drill bit is first removed from the drill rod 2 using a threaded connection. Once the threaded connection column 7 is disengaged from the connection block 6, the position limit on the operating rod 10 can be released. Figure 5 As shown, the operating lever 10 is moved to move the slider 14 toward the direction of the compression spring 15, so that the insertion rod 4 is disengaged from the slot 3, and the fixed connection between the connecting block 6 and the shell 1 is quickly released. Then, the inner entity 5 is pulled out of the shell 1 through the pull rod 12, and the shell 1 and the inner entity 5 are quickly separated so that the shell 1 can be replaced to reduce material waste.

[0033] like Figure 4 、 5 As shown, when replacing the outer shell 1, first operate the operating rod 10 to drive the slider 14 to compress the spring 15, so that the insertion rod 4 is stored in the slide groove 13; the inner body 5 and the connecting block 6 are placed in the new outer shell 1, and by rotating the connecting block 6, the insertion rod 4 is automatically aligned with the slot 3. When the insertion rod 4 is aligned with the slot 3, under the action of the spring 15's rebound force, the insertion rod 4 is inserted into the slot 3, thereby completing the fixed connection between the inner body 5 and the outer shell 1. The complete drill bit is docked with the drill rod 2 and fixed with threads. When the drill bit and the drill rod 2 are connected, the threaded connection column 7 is pressed on the connecting block 6, the pull rod 12 is inserted into the groove 8, and the operating rod 10 is inserted into the limit groove 9. The limit groove 9 can limit and fix the operating rod 10, thereby ensuring the stability of the insertion of the insertion rod 4 into the slot 3.

[0034] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A geological prospecting drilling bit, characterized by: The invention comprises an outer shell (1) and an inner body (5); the outer shell (1) is fixedly connected to the drill rod (2) by means of a thread, the inner body (5) corresponds to the shape of the interior of the outer shell (1), the inner body (5) is located inside the outer shell (1), and the inner body (5) is fixedly connected to the outer shell (1); and further comprises: An elastic plug-in assembly; a slot (3) is provided on the inner wall of the housing (1); a connecting block (6) is fixedly connected to the inner body (5); a sliding groove (13) is provided in the connecting block (6); the elastic plug-in assembly is located in the sliding groove (13), and the elastic plug-in assembly is inserted into the slot (3); an operating rod (10) is provided on the connecting block (6) and is fixedly connected to the elastic plug-in assembly; A threaded connection column (7) is fixedly connected to the lower end of the drill rod (2), the threaded connection column (7) is fixedly connected to the housing (1) through threads, and the threaded connection column (7) is pressed above the connection block (6); a limiting groove (9) is provided at the bottom of the threaded connection column (7), and an operating rod (10) is located in the limiting groove (9).

2. A geological prospecting drilling bit according to claim 1, characterized in that: The elastic plug-in assembly comprises an insert rod (4), a slider (14), a spring (15), and a sliding rod (16); the slider (14) is slidably arranged in the slide groove (13), the insert rod (4) is fixedly connected to one side of the slider (14), and the insert rod (4) passes through the connecting block (6) and is inserted into the slot (3); the sliding rod (16) is fixedly connected to the other side of the slider (14), the spring (15) is located in the slide groove (13), and the spring (15) is sleeved on the sliding rod (16).

3. A geological prospecting drilling bit according to claim 2, characterized in that: A guide hole (17) communicating with the slide groove (13) is provided in the connecting block (6), and the sliding rod (16) is slidably inserted into the guide hole (17); and a compression amount is reserved in the spring (15).

4. A geological prospecting drilling bit according to claim 3, characterized in that: A guide groove (11) communicating with the slide groove (13) is provided on the upper surface of the connecting block (6); the operating rod (10) is located in the guide groove (11), and the operating rod (10) is fixedly connected to the slider (14).

5. The geological prospecting drilling bit according to claim 1, characterized in that: The limiting groove (9) is annular, and two groups of sliding grooves (13) and elastic plug-in components are provided, and both operating rods (10) are located in the limiting groove (9).

6. A geological prospecting drilling bit according to claim 1, characterized in that: A groove (8) is provided at the bottom of the threaded connection column (7), and a pull rod (12) fixedly connected to the connection block (6) is inserted into the groove (8).

7. The geological prospecting drilling bit according to claim 1, characterized in that: The outer surface of the shell (1) is coated with a wear-resistant protective layer.

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