Drill bit connecting structure for geological exploration drilling

Abstract

The utility model relates to the technical field of geological exploration, and discloses a drill bit connecting structure for geological exploration drilling, which comprises a combined pipe, the outer wall of the combined pipe is sleeved with a clamping ring, one end of the combined pipe is sleeved with a limiting pipe, one side of the limiting pipe is in threaded connection with a necking pipe, a drill rod is inserted into the necking pipe, and the other side of the necking pipe is in threaded connection with the limiting pipe. A reinforcing ring is arranged on the other side of the combined pipe, a positioning ring is connected to one side of the reinforcing ring in an inserted mode, and a protective shell is welded to the outer wall of the positioning ring. According to the drill bit connecting structure for geological exploration drilling, the combined pipe, the clamping ring, the limiting pipe, the necking pipe and the drill rod are arranged in a matched mode, firm connection of the drill rod is achieved, the clamping ring is connected to the outer wall of the combined pipe in a sleeving mode, the inner wall of the combined pipe is limited and fixed, and the overall strength and stability of the combined pipe are enhanced; loosening or deformation of the connecting portion caused by vibration and torsion in the drilling process is effectively prevented, and it is ensured that a good sealing structure can be formed inside.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a bit connection structure for geological exploration drilling. Background Art

[0002] In the field of geological exploration, the connection structure between the drill bit and the drill pipe is crucial. The existing connection structures for drill bits used in geological exploration drilling have problems such as unstable connection, poor sealing performance, inconvenient installation and maintenance, etc. During the drilling process, due to the action of vibration and torsion, the connection part is prone to looseness or deformation, resulting in the leakage of drilling fluid, which affects the safety and efficiency of the drilling work. In addition, the adaptability and adjustability of the existing connection structures are limited, and it is difficult to meet the connection requirements of drill pipes and drill bits of different specifications.

[0003] However, when the existing technology is actually used, the following problems exist:

[0004] During the drilling process, the connection part of the overall device is loosened or deformed due to vibration and torsion, and it is unable to effectively prevent the leakage of drilling fluid, avoiding waste of resources and environmental pollution. It cannot adapt to drill pipes and drill bits of different specifications, and it is not convenient for the installation and disassembly between components, resulting in poor practicability of the device. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In order to overcome the above defects of the existing technology, the utility model provides a bit connection structure for geological exploration drilling, which solves the problems in the existing technology:

[0007] During the drilling process, the connection part of the overall device is loosened or deformed due to vibration and torsion, and it is unable to effectively prevent the leakage of drilling fluid, avoiding waste of resources and environmental pollution. It cannot adapt to drill pipes and drill bits of different specifications, and it is not convenient for the installation and disassembly between components, resulting in poor practicability of the device.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the utility model is realized through the following technical solutions: A bit connection structure for geological exploration drilling includes a combined pipe, a clamping ring is sleeved on the outer wall of the combined pipe, a limiting pipe is sleeved at one end of the combined pipe, a reduced-diameter pipe is threadedly connected to one side of the limiting pipe, a drill pipe is inserted into the reduced-diameter pipe, a reinforcing ring is provided on the other side of the combined pipe, a positioning ring is inserted into one side of the reinforcing ring, and a protective shell is welded to the outer wall of the positioning ring.

[0010] Furthermore, a bifurcated ring is welded to one side of the combined pipe, a threaded ring is fixedly connected to the other side of the combined pipe, and one side of the threaded ring is threadedly connected to one side of the reinforcing ring.

[0011] Furthermore, a through pin is threadedly connected to the outer wall of the clamping ring, and the through pin passes through the outer wall of the clamping ring and is threadedly connected to the inside of the combined pipe.

[0012] Furthermore, a friction ring is sleeved on the outer wall of the limiting pipe, and the inner wall of the limiting pipe is threadedly connected to the outer wall of the bifurcated ring.

[0013] Furthermore, a sealing ring is sleeved on the outer wall of the necking pipe, and the outer wall of the sealing ring is clamped to the inner wall of the limiting pipe.

[0014] Furthermore, a drill bit pipe is welded to one side of the drill pipe, and a wear-resistant ring is welded to the outer wall of the drill pipe.

[0015] Furthermore, a support rod is inserted into the inside of the reinforcement ring, and the support rod passes through the inside of the reinforcement ring and is threadedly connected to one side of the positioning ring.

[0016] Furthermore, an installation rod is welded to one side of the positioning ring, and a supporting plate is sleeved on the outer wall of the installation rod.

[0017] (III) Beneficial Effects

[0018] The utility model provides a drill bit connection structure for geological exploration drilling, which has the following beneficial effects:

[0019] Through the combined setting of the combined pipe, the clamping ring, the limiting pipe, the necking pipe and the drill pipe, the drill bit connection structure for geological exploration drilling realizes the firm connection of the drill pipe. The clamping ring is sleeved on the outer wall of the combined pipe and limits and fixes the inner wall of the combined pipe, enhancing the overall strength and stability of the combined pipe, effectively preventing the loosening or deformation of the connection part due to vibration and torsion during the drilling process, ensuring that a good sealing structure can be formed inside, effectively preventing the drilling fluid from leaking from the connection part between the drill pipe and the connection structure during the drilling process. Through the combined setting of the reinforcement ring, the positioning ring and the protective shell, when it is necessary to replace the drill pipe or perform equipment maintenance, the operator can quickly disassemble the connection structure and perform corresponding operations, greatly saving time and labor costs and improving the accuracy and efficiency of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the utility model;

[0021] Figure 2 is a schematic structural diagram of the combined pipe of the utility model;

[0022] Figure 3 is a schematic structural diagram of the reinforcement ring of the utility model;

[0023] Figure 4 is a schematic exploded view of the limiting pipe of the utility model;

[0024] Figure 5 Schematic diagram of the explosion structure of the positioning ring of the present utility model;

[0025] Figure 6 Schematic diagram of the drill pipe structure of the present utility model.

[0026] In the figure: 1. Composite pipe; 2. Clamping ring; 3. Limiting pipe; 4. Reducing pipe; 5. Drill pipe; 6. Reinforcing ring; 7. Positioning ring; 8. Protective shell; 9. Forked ring; 10. Threaded ring; 11. Through pin; 12. Friction ring; 13. Sealing ring; 14. Drill bit pipe; 15. Wear-resistant ring; 16. Support rod; 17. Installation rod; 18. Supporting plate. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1 to 6 , the embodiment of the present utility model provides a drill bit connection structure for geological exploration drilling. This drill bit connection structure for geological exploration drilling is applied to the scenario of geological exploration. In this embodiment, by improving the structure of the drill bit for geological exploration drilling, it has the advantages of stability and safety.

[0029] Embodiment 1:

[0030] Please refer to Figure 1 And Figure 2, the present utility model provides a technical solution: a drill bit connection structure for geological exploration drilling, including a combined pipe 1, a clamping ring 2 is sleeved on the outer wall of the combined pipe 1, a bifurcated ring 9 is welded on one side of the combined pipe 1, the other side of the combined pipe 1 is fixedly connected with a threaded ring 10, one side of the threaded ring 10 is threadedly connected with one side of a reinforcing ring 6, the outer wall of the clamping ring 2 is threadedly connected with a through pin 11, and the through pin 11 passes through the outer wall of the clamping ring 2 and is threadedly connected with the inside of the combined pipe 1. Therefore, since the bifurcated ring 9 is a protruding ring structure with threads on its outer surface, when connecting with the limiting pipe 3, the internal threads of the limiting pipe 3 are closely matched with the external threads of the bifurcated ring 9 to ensure the stability of the connection. The threaded ring 10 also has precise threads and is threadedly connected with one side of the reinforcing ring 6, making the connection between the combined pipe 1 and the reinforcing ring 6 reliable and capable of withstanding various forces during the drilling process. When the through pin 11 passes through the outer wall of the clamping ring 2 and is threadedly connected with the inside of the combined pipe 1, the clamping ring 2 is tightly fixed on the outer wall of the combined pipe 1 to limit and fix the inner wall of the combined pipe 1. This connection method not only enhances the overall strength of the combined pipe 1 but also effectively prevents the combined pipe 1 from deforming due to vibration and torsion, ensuring the stability of the drill pipe 5 during the drilling process.

[0031] Embodiment 2:

[0032] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 , in order to effectively implement the drilling operation and ensure the sealing between components, the device is provided with a limiting pipe 3, a reduced diameter pipe 4 and a drill pipe 5;

[0033] One end of the combined pipe 1 is sleeved with a limit pipe 3. One side of the limit pipe 3 is threadedly connected with a reduced-diameter pipe 4. A drill pipe 5 is inserted into the interior of the reduced-diameter pipe 4. The outer wall of the limit pipe 3 is sleeved with a friction ring 12. The inner wall of the limit pipe 3 is threadedly connected with the outer wall of a bifurcated ring 9. The outer wall of the reduced-diameter pipe 4 is sleeved with a sealing ring 13. The outer wall of the sealing ring 13 is clamped with the inner wall of the limit pipe 3. One side of the drill pipe 5 is welded with a drill bit pipe 14. The outer wall of the drill pipe 5 is welded with a wear-resistant ring 15. Therefore, the thickness of the friction ring 12 can be adjusted according to actual needs to adapt to different drilling conditions. During the drilling process, the friction ring 12 can increase the friction force between the limit pipe 3 and other components, preventing the limit pipe 3 from sliding or rotating during operation. At the same time, the inner wall of the limit pipe 3 is threadedly connected with the outer wall of the bifurcated ring 9. This connection method enables the limit pipe 3 to be firmly fixed on the combined pipe 1, providing stable support and limiting functions for the drill pipe 5. The sealing ring 13 is usually made of elastic materials such as rubber. The outer diameter of the sealing ring 13 is slightly larger than the inner diameter of the limit pipe 3. When the outer wall of the sealing ring 13 is clamped with the inner wall of the limit pipe 3, the sealing ring 13 is compressed to form a good sealing structure. During the drilling process, the sealing ring 13 can effectively prevent the drilling fluid from leaking from the connection between the drill pipe 5 and the connection structure, avoiding waste of the drilling fluid and environmental pollution, and also ensuring the smooth progress of the drilling work. The wear-resistant ring 15 is made of high-hardness materials, which can effectively reduce the wear of the drill pipe 5 when it contacts the hole wall and extend the service life of the drill pipe 5. During the drilling process, the wear-resistant ring 15 can also play a role in stabilizing the drill pipe 5, preventing the drill pipe 5 from shaking or deviating in the hole.

[0034] Embodiment Three:

[0035] Please refer to Figure 1 、 Figure 3 and Figure 5 To facilitate the disassembly and assembly of parts by operators and improve the convenience during use, a device reinforcing ring 6, a positioning ring 7 and a protective shell 8 are provided;

[0036] On the other side of the combined pipe 1, there is a reinforcement ring 6. One side of the reinforcement ring 6 is inserted with a positioning ring 7. The outer wall of the positioning ring 7 is welded with a protective shell 8. A support rod 16 is inserted into the inside of the reinforcement ring 6. The support rod 16 passes through the inside of the reinforcement ring 6 and is threadedly connected to one side of the positioning ring 7. One side of the positioning ring 7 is welded with an installation rod 17. The outer wall of the installation rod 17 is sleeved with a support plate 18. Therefore, when the support rod 16 passes through the inside of the reinforcement ring 6 and is threadedly connected to one side of the positioning ring 7, the connection between the reinforcement ring 6 and the positioning ring 7 is more stable, further enhancing the connection stability between the drill bit and the connection structure. During the drilling process, the support rod 16 can withstand greater axial pressure and torsion, ensuring that the connection structure will not loosen or deform due to external forces. When installing and disassembling the connection structure, the operator can hold the support plate 18 and operate the positioning ring 7 through the installation rod 17. The design of the support plate 18 makes it more convenient and efficient for the operator during the operation, improving the accuracy and efficiency of installation and disassembly. At the same time, the protective shell 8 welded to the outer wall of the positioning ring 7 can protect the key parts of the connection structure and prevent collision and damage from external objects.

[0037] In the present utility model, the working steps of the device are as follows:

[0038] First, sleeved the clamping ring 2 on the outer wall of the combined pipe 1, adjust the position of the clamping ring 2 to make it in a suitable position. Then, pass the through pin 11 through the threaded hole on the outer wall of the clamping ring 2 and screw it into the internal thread of the combined pipe 1 to firmly fix the clamping ring 2 on the combined pipe 1, enhancing the overall strength and stability of the combined pipe 1. Threadedly connect the limiting pipe 3 with the bifurcated ring 9 on one side of the combined pipe 1. During the connection process, ensure that the thread fit is tight to prevent loosening. Next, sleeve the friction ring 12 on the outer wall of the limiting pipe 3, and adjust the position and thickness of the friction ring 12 according to the actual drilling requirements to obtain appropriate frictional force. Sleeve the sealing ring 13 on the outer wall of the reduced-diameter pipe 4, and then threadedly connect the reduced-diameter pipe 4 with the limiting pipe 3, ensuring that the outer wall of the sealing ring 13 is tightly clamped with the inner wall of the limiting pipe 3 to form a good sealing structure to prevent the leakage of drilling fluid. Insert the drill pipe 5 into the inside of the reduced-diameter pipe 4, ensuring that the connection between the drill pipe 5 and the reduced-diameter pipe 4 is firm. The drill bit pipe 14 on one side of the drill pipe 5 should be in the correct position to prepare for the drilling work. On the other side of the combined pipe 1, threadedly connect the reinforcement ring 6 with the threaded ring 10. During the connection, ensure that the thread fit is tight to enhance the stability of the connection structure. Pass the support rod 16 through the inside of the reinforcement ring 6 and screw it into the threaded hole on one side of the positioning ring 7 to firmly connect the reinforcement ring 6 with the positioning ring 7. Weld the protective shell 8 on the outer wall of the positioning ring 7 to provide protection for the connection structure. At the same time, weld the installation rod 17 on one side of the positioning ring 7 and sleeve the support plate 18 on the outer wall of the installation rod 17 to facilitate the installation and disassembly operations for the operator.

[0039] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A drill bit connection structure for geological exploration drilling, comprising a combined pipe (1), characterized in that: A clamping ring (2) is sleeved on the outer wall of the combined pipe (1). A limiting pipe (3) is sleeved at one end of the combined pipe (1). A reduced-diameter pipe (4) is threadedly connected to one side of the limiting pipe (3). A drill rod (5) is inserted into the interior of the reduced-diameter pipe (4). A reinforcing ring (6) is provided on the other side of the combined pipe (1). A positioning ring (7) is inserted into one side of the reinforcing ring (6). A protective shell (8) is welded to the outer wall of the positioning ring (7).

2. The drill bit connection structure for geological exploration drilling according to claim 1, characterized in that: A bifurcated ring (9) is welded to one side of the combined pipe (1). A threaded ring (10) is fixedly connected to the other side of the combined pipe (1). One side of the threaded ring (10) is threadedly connected to one side of the reinforcing ring (6).

3. The drill bit connection structure for geological exploration drilling according to claim 1, characterized in that: A through pin (11) is threadedly connected to the outer wall of the clamping ring (2). The through pin (11) passes through the outer wall of the clamping ring (2) and is threadedly connected to the interior of the combined pipe (1).

4. A drill bit connection structure for geological exploration drilling according to claim 2, characterized in that: A friction ring (12) is sleeved on the outer wall of the limiting pipe (3). The inner wall of the limiting pipe (3) is threadedly connected to the outer wall of the bifurcated ring (9).

5. A drill bit connection structure for geological exploration drilling according to claim 1, characterized in that: A sealing ring (13) is sleeved on the outer wall of the reduced-diameter pipe (4). The outer wall of the sealing ring (13) is clamped with the inner wall of the limiting pipe (3).

6. A drill bit connection structure for geological exploration drilling according to claim 1, characterized in that: A drill bit pipe (14) is welded to one side of the drill rod (5). A wear-resistant ring (15) is welded to the outer wall of the drill rod (5).

7. A drill bit connection structure for geological exploration drilling according to claim 1, characterized in that: A support rod (16) is inserted into the interior of the reinforcing ring (6). The support rod (16) passes through the interior of the reinforcing ring (6) and is threadedly connected to one side of the positioning ring (7).

8. A drill bit connection structure for geological exploration drilling according to claim 1, characterized in that: An installation rod (17) is welded to one side of the positioning ring (7). A supporting plate (18) is sleeved on the outer wall of the installation rod (17).

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