High strength center conductor cable drill pipe

Abstract

This utility model belongs to the field of drill pipe technology, and in particular to a high-strength center-through-cable drill pipe, including a drill pipe body with a through hole inside. An insulating sleeve is fixedly installed on the inner wall of the through hole near the center, and the diameter of the insulating sleeve is set with a cable-through mechanism. A first plug-in mechanism is installed on the right edge of the inner wall of the drill pipe body corresponding to the cable-through mechanism, and a second plug-in mechanism is installed on the left edge of the inner wall of the drill pipe body corresponding to the cable-through mechanism. Adjacent ends of the drill pipe body are connected by a connecting mechanism, and a limit mechanism is provided between adjacent drill pipe bodies. This utility model, through the cooperation of the cable-through mechanism and the left and right first and second plug-in mechanisms, enables the communication cable to rotate, thereby not hindering the threaded rotation connection between the drill pipe bodies, making the connection more firm and stable, less prone to falling off and damage, and the connection strength between adjacent drill pipe bodies is high, making relative rotation less likely to occur, which is beneficial to use.

Description

Technical Field

[0001] This utility model relates to the field of drill pipe technology, specifically a high-strength center-through-cable drill pipe. Background Technology

[0002] Center-guided drill pipe, also known as measurement-while-drilling drill pipe, is mainly used in deep-hole directional drilling on kilometer-level directional drilling rigs. Directional drilling technology is one of the most advanced drilling methods in the world. It utilizes the natural curvature of the borehole or employs artificial directional drilling tools to extend the borehole to a predetermined target according to design requirements. It can drill to a designated position along a pre-designed drilling trajectory.

[0003] Currently, conventional center-through-cable drill rods typically involve plugging adjacent cables together and then threading adjacent drill rods together. This can lead to cable rotation, entanglement, or damage, making installation very inconvenient. Furthermore, the single threaded connection between adjacent drill rods results in low connection strength, making it easy for the drill rods to rotate relative to each other and separate, which is detrimental to their use. Therefore, we have proposed a high-strength center-through-cable drill rod to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a high-strength center-through-cable drill rod, which solves the problems mentioned in the background section.

[0005] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A high-strength center-through-cable drill rod includes a drill rod body with a through hole inside. An insulating sleeve is fixedly installed on the inner wall of the through hole near the center, and the diameter of the insulating sleeve is set with a cable-through mechanism. A first insertion mechanism is installed on the right edge of the inner wall of the drill rod body corresponding to the cable-through mechanism, and the first insertion mechanism is electrically connected to the right end of the cable-through mechanism. A second insertion mechanism is installed on the left edge of the inner wall of the drill rod body corresponding to the cable-through mechanism, and the second insertion mechanism is electrically connected to the left end of the cable-through mechanism. Adjacent ends of the drill rod body are connected by a connecting mechanism, and a limit mechanism is provided between adjacent drill rod bodies.

[0006] Furthermore, the cable-connecting mechanism includes photoelectric slip rings and communication cables. Two photoelectric slip rings are arranged on the left and right sides, respectively fixedly installed on the left and right ends of the insulating sleeve, and the left and right photoelectric slip rings are connected to each other through the communication cable.

[0007] Furthermore, the first insertion mechanism includes a first mechanical seal and a female plug. The first mechanical seal is installed on the right edge of the inner wall of the drill pipe body, and the female plug is installed in the first mechanical seal. The female plug is electrically connected to the right photoelectric slip ring.

[0008] Furthermore, the second insertion mechanism includes a second mechanical seal and a male plug. The second mechanical seal is installed on the left edge of the inner wall of the drill pipe body. The male plug is installed in the second mechanical seal. The male plug is electrically connected to the left photoelectric slip ring, and the male plugs in the adjacent drill pipe bodies on the left and right are inserted into the female plugs.

[0009] Furthermore, the connecting mechanism includes internal threads and external threads. The inner wall of the drill rod body is provided with internal threads near the right edge, and the outer surface of the left end of the drill rod body is provided with external threads, and the external threads are threaded onto the adjacent drill rod body threads.

[0010] Furthermore, the limiting mechanism includes a rectangular groove, a telescopic spring, a limiting block, and a limiting groove. Rectangular grooves are provided on both the upper and lower sides of the drill rod body. A telescopic spring is fixedly installed on the inner right side of the rectangular groove. A limiting block is fixedly installed on the left side of the telescopic spring. A limiting groove is provided on the right side of the drill rod body corresponding to the limiting block. The limiting block is movably inserted into the limiting groove.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a high-strength center-through-cable drill rod, which has the following beneficial effects: This utility model, through the cooperation of the cable passage mechanism and the left and right first and second plug-in mechanisms, enables the communication cable to rotate, thereby not hindering the threaded rotation connection between the drill rod bodies, making the connection more firm and stable, and less prone to falling off or being damaged. Furthermore, the limiting mechanism limits the adjacent drill rod bodies, thereby increasing the connection strength between adjacent drill rod bodies, making it less prone to relative rotation, and facilitating use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the drill pipe body connection state of this utility model.

[0013] In the diagram: 1. Drill rod body; 2. Through hole; 3. Insulating sleeve; 4. Cable connection mechanism; 401. Photoelectric slip ring; 402. Communication cable; 5. First insertion mechanism; 501. First mechanical seal; 502. Female plug; 6. Second insertion mechanism; 601. Second mechanical seal; 602. Male plug; 7. Connection mechanism; 701. Internal thread; 702. External thread; 8. Limiting mechanism; 801. Rectangular groove; 802. Telescopic spring; 803. Limiting block; 804. Limiting groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0015] like Figures 1-3 As shown in the figure, an embodiment of the present invention provides a high-strength center-through-cable drill rod, including a drill rod body 1. A through hole 2 is provided in the drill rod body 1. An insulating sleeve 3 is fixedly installed on the inner wall of the through hole 2 near the center. The diameter of the insulating sleeve 3 is set with a cable-through mechanism 4. A first insertion mechanism 5 is installed on the right edge of the inner wall of the drill rod body 1 corresponding to the cable-through mechanism 4. The first insertion mechanism 5 is electrically connected to the right end of the cable-through mechanism 4. A second insertion mechanism 6 is installed on the left edge of the inner wall of the drill rod body 1 corresponding to the cable-through mechanism 4. The second insertion mechanism 6 is electrically connected to the left end of the cable-through mechanism 4. Adjacent ends of the drill rod body 1 are connected by a connecting mechanism 7, and a limit mechanism 8 is provided between adjacent drill rod bodies 1.

[0016] like Figure 2 As shown, in some embodiments, the cable-connecting mechanism 4 includes a photoelectric slip ring 401 and a communication cable 402. Two photoelectric slip rings 401 are arranged on the left and right sides, respectively fixedly installed on the left and right ends of the insulating sleeve 3, and the left and right photoelectric slip rings 401 are connected to each other through the communication cable 402.

[0017] In this embodiment, the communication cable 402 between the photoelectric slip rings 401 forms a through cable, and the left and right photoelectric slip rings 401 enable the first plug-in mechanism 5 and the second plug-in mechanism 6 connected on the outside to rotate.

[0018] like Figure 2As shown, in some embodiments, the first plug-in mechanism 5 includes a first mechanical seal 501 and a female plug 502. The first mechanical seal 501 is installed on the right edge of the inner wall of the drill pipe body 1. The female plug 502 is installed in the first mechanical seal 501 and is electrically connected to the right photoelectric slip ring 401.

[0019] In this embodiment, the first mechanical seal 501 is used to install the female plug 502 and seal the cable passage mechanism 4, while allowing the female plug 502 to rotate within the first mechanical seal 501, and the right-side photoelectric slip ring 401 can meet the rotation requirements of the female plug 502.

[0020] like Figure 2 As shown, in some embodiments, the second insertion mechanism 6 includes a second mechanical seal 601 and a male plug 602. The second mechanical seal 601 is installed on the left edge of the inner wall of the drill pipe body 1. The male plug 602 is installed in the second mechanical seal 601. The male plug 602 is electrically connected to the left photoelectric slip ring 401, and the male plug 602 in the adjacent drill pipe body 1 is inserted into the female plug 502.

[0021] In this embodiment, the second mechanical seal 601 is used to install and fix the male plug 602 and seal the left end of the cable passage mechanism 4. At the same time, the male plug 602 can rotate in the second mechanical seal 601, and the left photoelectric slip ring 401 can meet the rotation requirements of the male plug 602.

[0022] like Figure 2 As shown, in some embodiments, the connecting mechanism 7 includes an internal thread 701 and an external thread 702. The inner wall of the drill rod body 1 is provided with an internal thread 701 near the right edge, and the outer surface of the left end of the drill rod body 1 is provided with an external thread 702, and the external thread 702 is threaded onto the adjacent drill rod body 1 thread.

[0023] In this embodiment, adjacent drill pipe bodies 1 are connected and fixed by internal threads 701 and external threads 702.

[0024] like Figure 2 As shown, in some embodiments, the limiting mechanism 8 includes a rectangular groove 801, a telescopic spring 802, a limiting block 803, and a limiting groove 804. The upper and lower sides of the drill rod body 1 are provided with rectangular grooves 801. A telescopic spring 802 is fixedly installed on the inner right side of the rectangular groove 801. A limiting block 803 is fixedly installed on the left side of the telescopic spring 802. A limiting groove 804 is provided on the right side of the drill rod body 1 corresponding to the limiting block 803. The limiting block 803 is movably inserted into the limiting groove 804.

[0025] In this embodiment, the telescopic spring 802 pushes the limiting block 803 to be inserted into the limiting groove 804 along the rectangular groove 801, thereby limiting the adjacent drill rod bodies 1 to each other, and the outer surface of the limiting block 803 is flush with the outer surface of the drill rod body 1.

[0026] In use, the external thread 702 of the connecting mechanism 7 on the right side of the drill pipe body 1 is screwed into the internal thread 701 on the right end of the adjacent drill pipe body 1 on the left side, connecting the adjacent drill pipe bodies 1. During the connection process, the male plug 602 of the second insertion mechanism 6 on the left end of the right drill pipe body 1 is inserted into the female plug 502 of the first insertion mechanism 5 on the right end of the adjacent drill pipe body 1 on the left side, facilitating the electrical connection between the adjacent cable-connecting mechanisms 4 on the left and right sides. Simultaneously, the female plug 502 can rotate within the first mechanical seal 501, and the right photoelectric slip ring 401 can meet the rotation requirements of the female plug 502. Furthermore, the male plug 602 can rotate within the second mechanical seal 601, and the left photoelectric slip ring 401... The slip ring 401 can meet the rotation requirements of the male plug 602. When adjacent drill pipe bodies 1 are rotated and connected, the female plug 502 and the male plug 602 will not get tangled in the cable, thus not hindering the threaded rotation connection between the drill pipe bodies 1, making the connection more secure and stable, and less prone to falling off or being damaged. Then, the telescopic spring 802 in the limiting mechanism 8 pushes the limiting block 803 to insert into the limiting groove 804 along the rectangular groove 801, thereby limiting the adjacent drill pipe bodies 1 to each other, thus making the connection strength of the adjacent drill pipe bodies 1 greater, and making it less likely for the adjacent drill pipe bodies 1 to rotate relative to each other, which is convenient for use. Pushing the limiting block 803 out of the limiting groove 804 allows the adjacent drill pipe bodies 1 to rotate relative to each other, making it convenient for disassembly.

[0027] In summary, this high-strength center-through-cable drill rod, through the cooperation of the cable-through mechanism 4 with the left and right first insertion mechanism 5 and second insertion mechanism 6, allows the communication cable 402 to have a rotation function, thus not hindering the threaded rotation connection between the drill rod bodies 1, making the connection more firm and stable, less prone to falling off and damage, and the connection strength between adjacent drill rod bodies 1 is high, making relative rotation less likely to occur, which is beneficial for use.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength center-through-cable drill rod, comprising a drill rod body (1), characterized in that: The drill rod body (1) has a through hole (2) inside. An insulating sleeve (3) is fixedly installed on the inner wall of the through hole (2) near the middle. The diameter of the insulating sleeve (3) is provided with a cable passage mechanism (4). A first plug-in mechanism (5) is installed on the right edge of the inner wall of the drill rod body (1) corresponding to the cable passage mechanism (4). The first plug-in mechanism (5) is electrically connected to the right end of the cable passage mechanism (4). A second plug-in mechanism (6) is installed on the left edge of the inner wall of the drill rod body (1) corresponding to the cable passage mechanism (4). The second plug-in mechanism (6) is electrically connected to the left end of the cable passage mechanism (4). The adjacent ends of the drill rod body (1) are connected by a connecting mechanism (7). A limit mechanism (8) is provided between adjacent drill rod bodies (1).

2. The high-strength center-through-cable drill rod according to claim 1, characterized in that: The cable-connecting mechanism (4) includes a photoelectric slip ring (401) and a communication cable (402). There are two photoelectric slip rings (401) on the left and right sides respectively. The photoelectric slip rings (401) are fixedly installed on the left and right ends of the insulating sleeve (3) and are connected to each other through the communication cable (402).

3. A high-strength center-through-cable drill rod according to claim 1, characterized in that: The first plug-in mechanism (5) includes a first mechanical seal (501) and a female plug (502). The first mechanical seal (501) is installed on the right edge of the inner wall of the drill pipe body (1). The female plug (502) is installed in the first mechanical seal (501). The female plug (502) is electrically connected to the right photoelectric slip ring (401).

4. A high-strength center-through-cable drill rod according to claim 1, characterized in that: The second insertion mechanism (6) includes a second mechanical seal (601) and a male plug (602). The second mechanical seal (601) is installed on the left edge of the inner wall of the drill pipe body (1). The male plug (602) is installed in the second mechanical seal (601). The male plug (602) is electrically connected to the left photoelectric slip ring (401). The male plug (602) in the adjacent drill pipe bodies (1) is inserted into the female plug (502).

5. A high-strength center-through-cable drill rod according to claim 1, characterized in that: The connecting mechanism (7) includes an internal thread (701) and an external thread (702). The inner wall of the drill rod body (1) is provided with an internal thread (701) near the right edge, and the outer surface of the left end of the drill rod body (1) is provided with an external thread (702). The external thread (702) is threaded onto the adjacent drill rod body (1).

6. A high-strength center-through-cable drill rod according to claim 1, characterized in that: The limiting mechanism (8) includes a rectangular groove (801), a telescopic spring (802), a limiting block (803), and a limiting groove (804). The upper and lower sides of the drill rod body (1) are provided with rectangular grooves (801). A telescopic spring (802) is fixedly installed on the inner right side of the rectangular groove (801). A limiting block (803) is fixedly installed on the left side of the telescopic spring (802). A limiting groove (804) is opened on the right side of the drill rod body (1) corresponding to the limiting block (803). The limiting block (803) is movably inserted into the limiting groove (804).

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