A through-cable drill pipe with multi-section thread matching structure

Abstract

The utility model relates to directional drilling technology field discloses a kind of cable through drill pipe with multi-section thread cooperation structure, comprising: as the connecting main body female drill pipe, the left end of the female drill pipe is fixedly connected with threaded head, the left end of the threaded head is threadedly connected with male drill pipe, the left end of the male drill pipe is fixedly connected with connecting box, the inner wall both sides of the connecting box are slidably connected with connecting rod, the opposite end of the connecting rod is fixedly connected with slider, the opposite end of the slider is rotatably connected with rotating plate, the opposite end of the rotating plate is rotatably connected with plug, the inner wall between the slider and connecting box is all set with first spring. In the utility model, by pulling connecting rod to drive slider, slider drives rotating plate, rotating plate drives plug to separate from the inside of fixed hole and then connecting block is taken down to replace drill bit, so as to keep good cutting performance, maintain higher drilling speed, reduce drilling time and cost.

Description

Technical Field

[0001] This utility model relates to the field of directional drilling technology, and in particular to a cable drill rod with a multi-segment threaded joint structure. Background Technology

[0002] Cable-guided drill pipes are a key component of directional drilling measurement-while-drilling (MDD) systems. A directional drilling cable-guided drill pipe consists of a drill pipe body and a cable, forming a complete signal channel. The drill pipe body uses a threaded connection; the cable is fixed within the drill pipe body using a plug-in structure. When the male and female threads of the two drill pipe bodies are connected, the male and female plugs of the signal transmission device are also plugged in together to establish signal connectivity.

[0003] Drill bit wear is a common phenomenon during drilling. Severely worn drill bits will continue to work, which slows down the drilling speed and increases drilling time and cost. In directional drilling in coal mines, failure to replace worn drill bits in time can significantly increase drilling time. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cable drill rod with a multi-segment threaded joint structure. By pulling the connecting rod, the slider is driven, which in turn drives the rotating plate. The rotating plate then drives the insert block to disengage from the fixed hole, allowing the connecting block to be removed and the drill bit to be replaced. This maintains good cutting performance, sustains a high drilling speed, and reduces drilling time and costs.

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

[0006] A cable-connecting drill rod with a multi-segment threaded engagement structure includes: a female drill rod as the connecting body; a threaded head fixedly connected to the left end of the female drill rod; a male drill rod threadedly connected to the left end of the threaded head; a connecting box fixedly connected to the left end of the male drill rod; connecting rods slidably connected to both sides of the inner wall of the connecting box; sliders fixedly connected to opposite ends of the connecting rods; rotating plates rotatably connected to opposite ends of the sliders; insert blocks rotatably connected to opposite ends of the rotating plates; a first spring provided between the sliders and the inner wall of the connecting box; a connecting block slidably connected to the inner wall of the connecting box; a drill bit fixedly connected to the left end of the connecting block; and connecting components provided on the outer walls of the female drill rod and the male drill rod.

[0007] Furthermore, one end of each of the first springs is connected to the slider, and the other end of each of the first springs is connected to the inner wall of the connecting box.

[0008] Furthermore, the outer walls of the sliders are all slidably connected to the inner walls of the connecting box, and the outer walls of the inserts are all slidably connected to the inner walls of the connecting box.

[0009] Furthermore, each of the opposite ends of the connecting block is fixedly connected to a slide bar, and the inner wall of the slide bar is provided with multiple fixing holes corresponding to the insertion block.

[0010] Furthermore, the connecting assembly includes a rotating ring rotatably connected to the outer wall of the female drill pipe. Fixed plates are fixedly connected to both sides of the left end of the rotating ring. Connecting frames are fixedly connected to both sides of the outer wall of the male drill pipe. Fixed cylinders are fixedly connected to the inner walls of the connecting frames. Slide plates are slidably connected to the inner walls of the fixed cylinders. Pull rods are fixedly connected to the inner walls of the slide plates. A second spring is provided between the inner walls of the fixed cylinders and the slide plates.

[0011] Furthermore, the outer walls of the fixing plates are all slidably connected to the inner walls of the connecting frame.

[0012] Furthermore, the inner wall of the fixing plate is provided with multiple connection holes corresponding to the tie rod.

[0013] Furthermore, one end of each of the second springs is connected to the slide plate, and the other end of each of the second springs is connected to the inner wall of the fixed cylinder.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by pulling the connecting rod, the slider is driven, the slider drives the rotating plate, the rotating plate drives the insert block to disengage from the inside of the fixed hole, and then the connecting block is removed to replace the drill bit, thereby maintaining good cutting performance, maintaining a high drilling speed, and reducing drilling time and cost.

[0016] 2. In this utility model, by pulling up the pull rod and then pinching the rotating ring to insert its fixing plate into the connecting frame, and then releasing the pull rod, the second spring will bounce the slide plate when the pull rod is released. The slide plate will drive the pull rod to insert into the connecting hole for fixation, thereby effectively avoiding the occurrence of drill falling accidents, reducing the safety risks of drilling operations, and creating a safer working environment for construction personnel. Attached Figure Description

[0017] Figure 1 This is an isometric view of a cable drill rod with a multi-segment threaded fit structure proposed in this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of a connecting box for a cable drill rod with a multi-segment threaded fit structure proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the fixing hole structure of a cable drill rod with a multi-segment threaded fit structure proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the fixed cylinder structure of a cable drill rod with a multi-segment threaded fit structure proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the rotating ring structure of a cable drill rod with a multi-segment threaded fit structure proposed in this utility model.

[0022] Legend:

[0023] 1. Male drill rod; 2. Connecting box; 3. Connecting rod; 4. Slider; 5. Rotating plate; 6. Insert block; 7. First spring; 8. Connecting block; 9. Slide bar; 10. Drill bit; 11. Fixing hole; 12. Female drill rod; 13. Threaded head; 14. Connecting frame; 15. Fixing cylinder; 16. Slide plate; 17. Pull rod; 18. Second spring; 19. Rotary ring; 20. Fixing plate; 21. Connecting hole. Detailed Implementation

[0024] 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.

[0025] Reference Figures 2-4 This utility model provides an embodiment of a cable-connecting drill rod with a multi-segment threaded mating structure, comprising: a female drill rod 12 as the connecting body; a threaded head 13 fixedly connected to the left end of the female drill rod 12; a male drill rod 1 threadedly connected to the left end of the threaded head 13; a connecting box 2 fixedly connected to the left end of the male drill rod 1; connecting rods 3 slidably connected to both sides of the inner wall of the connecting box 2; sliders 4 fixedly connected to opposite ends of the connecting rods 3; rotating plates 5 rotatably connected to opposite ends of the sliders 4; and inserts 6 rotatably connected to opposite ends of the rotating plates 5. The sliders 4 and the connecting box 2... A first spring 7 is provided between the inner walls. A connecting block 8 is slidably connected to the inner wall of the connecting box 2. A drill bit 10 is fixedly connected to the left end of the connecting block 8. A connecting component is provided on the outer wall of the female drill rod 12 and the male drill rod 1. One end of the first spring 7 is connected to the slider 4. The other end of the first spring 7 is connected to the inner wall of the connecting box 2. The outer wall of the slider 4 is slidably connected to the inner wall of the connecting box 2. The outer wall of the insert block 6 is slidably connected to the inner wall of the connecting box 2. A slide bar 9 is fixedly connected to the opposite end of the connecting block 8. Multiple fixing holes 11 are provided on the inner wall of the slide bar 9 corresponding to the insert block 6.

[0026] Specifically, when the drill bit 10 needs to be replaced, the operator first pulls the connecting rod 3. As the connecting rod 3 is pulled, the connected slider 4 also begins to move. The movement of the slider 4 causes the rotating plate 5 to shift, and the shift of the rotating plate 5 further causes the insert block 6 to disengage from the fixing hole 11. At this point, the connecting block 8 can be easily removed, thus allowing the drill bit 10 to be replaced smoothly. By replacing the worn drill bit 10 in a timely manner, the drill bit 10 can maintain good cutting performance, effectively maintain a high drilling speed, and thus significantly reduce... To reduce drilling time and costs, when replacing the new drill bit 10 and performing the installation operation, first insert the connecting block 8 into the connecting box 2. After the connecting block 8 is inserted into place, release the previously pulled connecting rod 3. At the moment the connecting rod 3 is released, the first spring 7 will quickly release its elastic potential energy, causing the slider 4 to bounce forward. The bounce of the slider 4 will then drive the rotating plate 5 to move, and the rotating plate 5 will then drive the insert block 6 to be inserted into the fixing hole 11, thus fixing the connecting block 8 and the newly installed drill bit 10, so that the drill rod can continue to be put into stable drilling operations.

[0027] Reference Figure 1 and Figure 5 The connecting assembly includes a rotating ring 19 rotatably connected to the outer wall of the female drill rod 12. Fixing plates 20 are fixedly connected to both sides of the left end of the rotating ring 19. Connecting frames 14 are fixedly connected to both sides of the outer wall of the male drill rod 1. Fixing cylinders 15 are fixedly connected to the inner walls of the connecting frames 14. Slide plates 16 are slidably connected to the inner walls of the fixing cylinders 15. Pull rods 17 are fixedly connected to the inner walls of the slide plates 16. A second spring 18 is provided between the inner walls of the fixing cylinders 15 and the slide plates 16. The outer walls of the fixing plates 20 are slidably connected to the inner walls of the connecting frames 14. Multiple connecting holes 21 are provided on the inner walls of the fixing plates 20 corresponding to the pull rods 17. One end of each second spring 18 is connected to the slide plate 16, and the other end of each second spring 18 is connected to the inner wall of the fixing cylinder 15.

[0028] Specifically, when connecting the cable drill rod, the operator rotates the female drill rod 12, causing the threaded head 13 on the female drill rod 12 to slowly screw into the thread on the inner wall of the male drill rod 1, initiating the connection process. After the threads are initially aligned, the operator quickly pulls up the pull rod 17 to release its initial limit state. At this time, the operator pinches the rotating ring 19 and manipulates the fixing plate 20 to accurately insert into the preset slot of the connecting frame 14. Once the fixing plate 20 is inserted into place, the operator releases the pull rod 17. The instant the pull rod 17 is released, the second spring 18 releases its elastic potential energy, pushing the sliding plate 16 to move rapidly. The movement of the sliding plate 16 drives the... The connected tie rod 17 is displaced and then inserted into the connecting hole 21. As the tie rod 17 is engaged in the connecting hole 21, the entire connection structure is locked, and the female drill rod 12 will not separate when it breaks. This connection method is of great significance in actual drilling operations. During drilling, the drill rod system will be subjected to complex and variable loads. If the connection is loose, the drill rod may disengage during drilling, causing a drill drop accident. This connection design can effectively avoid such situations, reduce the safety risks of drilling operations, create a safer working environment for on-site construction personnel, and ensure the safe and efficient progress of drilling work.

[0029] Working principle: During connection, the female drill rod 12 is rotated to connect its threaded head 13 with the thread on the inner wall of the male drill rod 1. During connection, the pull rod 17 is pulled up, and then the rotating ring 19 is pinched to insert the fixing plate 20 into the connecting bracket 14. When inserted into place, the pull rod 17 is released. When the pull rod 17 is released, the second spring 18 springs the sliding plate 16. As the sliding plate 16 springs, it drives the pull rod 17 to move. When the pull rod 17 moves, it is inserted into the connecting hole 21 for fixation. This effectively avoids drill bit drops, reduces the safety risks of drilling operations, and creates a safer working environment for construction personnel. When further adjustments to the drill bit 10 are needed... When changing drill bits, pull the connecting rod 3 to move the slider 4. As the slider 4 moves, the rotating plate 5 moves. As the rotating plate 5 moves, the insert block 6 disengages from the fixed hole 11. Then, remove the connecting block 8 and replace the drill bit 10. This maintains good cutting performance, high drilling speed, and reduces drilling time and cost. During installation, insert the connecting block 8 into the connecting box 2. When it is inserted into place, release the connecting rod 3. When the connecting rod 3 is released, the first spring 7 will bounce the slider 4. When the slider 4 bounces, it moves the rotating plate 5. As the rotating plate 5 moves, it moves the insert block 6 into the fixed hole 11 for fixing.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable-passing drill rod with a multi-segment threaded engagement structure, characterized in that, include: The female drill rod (12) serves as the main connecting component. A threaded head (13) is fixedly connected to the left end of the female drill rod (12). A male drill rod (1) is threadedly connected to the left end of the threaded head (13). A connecting box (2) is fixedly connected to the left end of the male drill rod (1). Connecting rods (3) are slidably connected to both sides of the inner wall of the connecting box (2). A slider (4) is fixedly connected to the opposite end of each connecting rod (3). A rotating plate (5) is rotatably connected to the opposite end of each slider (4). A plug (6) is rotatably connected to the opposite end of each rotating plate (5). A first spring (7) is provided between the slider (4) and the inner wall of the connecting box (2). A connecting block (8) is slidably connected to the inner wall of the connecting box (2). A drill bit (10) is fixedly connected to the left end of the connecting block (8). A connecting component is provided on the outer wall of the female drill rod (12) and the male drill rod (1).

2. A cable-passing drill rod with a multi-segment threaded engagement structure according to claim 1, characterized in that: One end of the first spring (7) is connected to the slider (4), and the other end of the first spring (7) is connected to the inner wall of the connecting box (2).

3. A cable-passing drill rod with a multi-segment threaded fit structure according to claim 1, characterized in that: The outer walls of the slider (4) are all slidably connected to the inner wall of the connecting box (2), and the outer walls of the insert (6) are all slidably connected to the inner wall of the connecting box (2).

4. A cable-passing drill rod with a multi-segment threaded engagement structure according to claim 1, characterized in that: Each of the opposite ends of the connecting block (8) is fixedly connected to a slide bar (9), and the inner wall of the slide bar (9) is provided with multiple fixing holes (11) corresponding to the insert block (6).

5. A cable-passing drill rod with a multi-segment threaded fit structure according to claim 1, characterized in that: The connecting assembly includes a rotating ring (19) rotatably connected to the outer wall of the female drill rod (12). Fixed plates (20) are fixedly connected to both sides of the left end of the rotating ring (19). Connecting frames (14) are fixedly connected to both sides of the outer wall of the male drill rod (1). Fixed cylinders (15) are fixedly connected to the inner walls of the connecting frames (14). Slide plates (16) are slidably connected to the inner walls of the fixed cylinders (15). Pull rods (17) are fixedly connected to the inner walls of the slide plates (16). A second spring (18) is provided between the inner walls of the fixed cylinders (15) and the slide plates (16).

6. A cable-passing drill rod with a multi-segment threaded engagement structure according to claim 5, characterized in that: The outer walls of the fixing plate (20) are all slidably connected to the inner walls of the connecting frame (14).

7. A cable-passing drill rod with a multi-segment threaded engagement structure according to claim 5, characterized in that: The inner wall of the fixing plate (20) is provided with multiple connection holes (21) corresponding to the tie rod (17).

8. A cable-passing drill rod with a multi-segment threaded engagement structure according to claim 5, characterized in that: One end of the second spring (18) is connected to the slide plate (16), and the other end of the second spring (18) is connected to the inner wall of the fixed cylinder (15).

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