Mining through cable one-way conversion nipple
By designing a one-way conversion short section for mining cables and controlling the opening and closing of the valve body by using water flow, the problem of water outflow of drill pipes during upward drilling operation is solved, and the operation efficiency and process optimization are improved.
Patent Information
- Application Number
- CN202421836638.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the upward drilling operation, when adding a new drill pipe, the water inside the drill pipe will flow out, resulting in the need to be refilled every time, increasing the impact of operation complexity and efficiency.
A mining cable unidirectional conversion short section is designed, including a drill pipe connection assembly and a one-way water blocking valve body. The opening and closing of the valve body is controlled by the water flow to ensure that the water does not leak out. When the drill pipe needs to be added, the valve body will automatically close to prevent water from flowing out.
It effectively solves the problem of water outflow of drill pipe, reduces the number of re-injection times, and improves operating efficiency and process optimization.
Smart Images
Figure CN223034968U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wired drill pipes while drilling, in particular to a mine-used cable-connected one-way conversion short joint. Background Technique
[0002] With the continuous development and popularization of drilling technologies, full-hydraulic crawler directional drilling rigs are now widely used in coal mines, and are equipped with a wired measurement-while-drilling system to perform directional drilling operations; this advanced system realizes precise control and timely adjustment of the drilling process by transmitting the trajectory data collected by the wired measurement-while-drilling probe at the bottom of the hole to the explosion-proof computer at the hole opening in real time, greatly improving the operation efficiency and effectively addressing various safety hazards in coal mines;
[0003] However, in the actual operation process, the application of the wired measurement-while-drilling system also faces some challenges; especially when performing upward drilling operations and new dedicated cable-connected drill pipes need to be added, a significant problem is that: since the water inside the drill pipe will flow out as new drill pipes are added, before adding each new drill pipe, the staff must first refill it with water to ensure the smooth progress of the drilling operation; this process not only increases the complexity of the operation, but may also have a certain impact on the operation efficiency; therefore, in practical applications, corresponding measures need to be taken to optimize the operation process and improve the operation efficiency. Content of the Utility Model
[0004] In order to solve the problem that in the prior art, when performing upward drilling, the water inside the dedicated cable-connected drill pipe will flow out each time a dedicated cable-connected drill pipe is added, the utility model provides a mine-used cable-connected one-way conversion short joint;
[0005] The mine-used cable-connected one-way conversion short joint provided by the utility model adopts the following technical solutions:
[0006] A mine-used cable-connected one-way conversion short joint includes a short joint body, and a drill pipe connection assembly is arranged inside the short joint body; a fixing structure for installing the drill pipe connection assembly is arranged between the drill pipe connection assembly and the short joint body; a valve body for one-way water blocking is installed on the outer side wall of the drill pipe connection assembly.
[0007] Further, the drill pipe connection assembly includes a casing, and the casing is arranged inside the short joint body; a connecting rod is inserted through the inside of the casing; both ends of the connecting rod respectively extend to the outer sides of both ends of the casing; a male head and a female head are respectively inserted at both ends of the casing; a male head core is inserted inside the male head, one end of the connecting rod penetrates through the male head and is connected to the bottom of the male head core, and is bolt-connected; a female head core is inserted inside the female head, the other end of the connecting rod penetrates through the female head and is connected to the bottom of the female head core, and is bolt-connected; a conical spring is fixedly installed at the other end of the female head core.
[0008] Furthermore, the connections between the sleeve and the female head and the male head are sealed by rubber rings; the connections between the male head and the male head core, and between the female head and the female head core are also sealed by rubber rings;
[0009] Furthermore, the fixing structure includes a first support disc and a second support disc; the outer wall of the female head is sleeved with the first support disc; the outer wall of the male head is sleeved with the second support disc; a first retaining ring is integrally formed on the outer wall of the first support disc; a second retaining ring is integrally formed on the outer wall of the second support disc; a fixing groove for cooperating with the first retaining ring and the second retaining ring is formed on the inner wall of the nipple body; the drill pipe connection assembly is fixed in the fixing groove through the first retaining ring and the second retaining ring;
[0010] Furthermore, the valve body includes a fixed valve sleeve, a movable valve head, and a spring; the fixed valve sleeve is installed on the outer wall of the sleeve through bolts; a spring is sleeved on the outer wall of the connecting rod; one end of the spring is fixedly connected to the outer wall of the sleeve; the other end of the spring is welded with a movable valve head which is also sleeved on the outer wall of the sleeve; the movable valve head presses inside the fixed valve sleeve and is arranged on the other side of the fixed valve sleeve relative to the male head; an annular groove for water passage is formed in the inner part of the fixed valve sleeve along the circumferential array;
[0011] Furthermore, the movable valve head is in a frustum shape; a frustum-shaped groove for cooperating with the movable valve head is formed on the side wall of the fixed valve sleeve in contact with the movable valve head;
[0012] Furthermore, the materials of the female head, the sleeve, and the male head are plastic, and the materials of the female head core, the connecting rod, and the male head core are copper alloy or stainless steel;
[0013] Furthermore, both the movable valve head and the fixed valve sleeve are made of plastic.
[0014] In summary, the beneficial effects of the present utility model are as follows:
[0015] The mine-used cable-connected one-way conversion nipple of the present utility model can realize the functions of a conversion joint and a one-way valve. The threads at both ends of the nipple, as well as the male head and the female head, can be matched according to two different special cable-connected drill pipes. At the same time, the movable valve head is pushed open by water flow. When adding a drill pipe, the movable valve head is pushed onto the fixed valve seat by the spring to retain the water in the special cable-connected drill pipe, so as to solve the problems of mismatch between the two special cable-connected drill pipes and water leakage in the upward drilling. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic structural diagram of the mine-used cable-connected one-way conversion nipple of the present utility model.
[0017] Figure 2 It is a three-dimensional schematic diagram of the movable valve head and the fixed valve seat of the present utility model.
[0018] As shown in the figure: 1. Stub body, 2. First support disc, 3. Male head core, 4. Male head, 5. Female head, 6. Female head core, 7. Second support disc, 8. Sleeve, 9. Fixed valve sleeve, 10. Movable valve head, 11. Spring, 12. Connecting rod, 13. First retaining ring, 14. Second retaining ring, 18. Conical spring. Detailed implementation mode
[0019] The following will further elaborate on the present utility model in conjunction with the attached Figure 1-2 description:
[0020] An embodiment of the present utility model discloses a mine-used through-cable one-way conversion stub. As Figure 1 shown, a mine-used through-cable one-way conversion stub includes a stub body 1, and a drill pipe connection assembly is arranged inside the stub body 1; a fixing structure for installing the drill pipe connection assembly is arranged between the drill pipe connection assembly and the stub body 1; a valve body for one-way water blocking is installed on the outer side wall of the drill pipe connection assembly; in this embodiment, the drill pipe connection assembly is the main component for connecting the upper and lower drill pipes, and the position of the drill pipe connection assembly is fixed by a fixing component, and by adding a valve body, the stub can effectively function as a one-way valve. When water flows through in the correct direction, the valve body will open. When adding a drill pipe, since the water flow stops, the valve body closes, realizing the blocking of the water flow and avoiding the outflow of water from the upward drill, solving the problem of needing to refill water.
[0021] As Figure 1As shown, the drill pipe connection assembly includes a casing 8, and the casing 8 is arranged inside the short joint body 1; a connecting rod 12 is inserted through the inside of the casing 8; both ends of the connecting rod 12 extend to the outside of both ends of the casing 8; a male head 4 and a female head 5 are respectively inserted at both ends of the casing 8; a male head core 3 is inserted inside the male head 4, one end of the connecting rod passes through the male head 4 and is connected to the bottom of the male head core 3, and is connected by bolts; a female head core 6 is inserted inside the female head 5, the other end of the connecting rod passes through the female head 5 and is connected to the bottom of the female head core 6, and is connected by bolts; a conical spring 18 is fixedly installed at the other end of the female head core 6; in this embodiment, the casing 8 is the core component of the drill pipe connection assembly, and it is fixed inside the short joint body 1; the casing 8 provides a through-insertion channel for the connecting rod 12, enabling the connecting rod 12 to slide freely inside the casing 8; both ends of the connecting rod 12 extend to the outside of both ends of the casing 8 respectively, so as to be bolt-connected to adjacent drill pipes or other components; and it plays a role in electrical connection. The male head 4 and the female head 5 are the insertion components at both ends of the casing 8, and they are fixedly connected to the casing 8 by specific methods such as threaded connection and snap connection; the designs of the male head 4 and the female head 5 enable the drill pipe connection assembly to achieve quick connection and disconnection, improving the operation efficiency; the male head core 3 and the female head core 6 are respectively inserted inside the male head 4 and the female head 5, and are connected to the other end of the connecting rod 12 by bolts; this interference fit connection ensures the tight connection between the connecting rod 12 and the male head core 3 and the female head core 6, preventing relative sliding and detachment during the drilling process; a conical spring 18 is fixedly installed at the other end of the female head core 6; assisting electrical connection
[0022] In addition, it is worth noting that a significant advantage of this drill pipe connection assembly is that the male head 4 and the female head 5 can be arranged at different positions inside the short joint body 1 as needed to adapt to different models of drill pipes;
[0023] Such as Figure 1 As shown, the joints between the casing 8 and the female head 5 and the male head 4 are sealed by rubber rings; the joints between the male head 4 and the male head core 3 and between the female head 5 and the female head core 6 are sealed by rubber rings; in this embodiment, the sealing function of the rubber rings is not limited to preventing fluid leakage, but also can provide a certain pre-tightening force, making the connection between the casing and the female head 5 and the male head 4, as well as between the male head core 3 and the female head core 6, more tight and stable; this stability helps to reduce the risk of loosening and detachment at the joints due to vibration and impact, ensuring the reliable operation of the drill pipe connection assembly during the drilling process;
[0024] Such as Figure 1As shown, the fixing structure includes a first support disk 2 and a second support disk 7. The outer wall of the female head 5 is sleeved with the first support disk 2. The outer wall of the male head 4 is sleeved with the second support disk 7. A first retaining ring 13 is integrally formed on the outer wall of the first support disk 2. A second retaining ring 14 is integrally formed on the outer wall of the second support disk 7. A fixing groove that cooperates with the first retaining ring 13 and the second retaining ring 14 is provided on the inner wall of the short joint body 1. The drill pipe connection assembly is fixed in this fixing groove through the first retaining ring 13 and the second retaining ring 14. In this embodiment, the first support disk 2 and the first retaining ring 13 are a set of fixing parts. The second support disk 7 and the second retaining ring 14 are another set of fixing parts for the overall cooperation of the drill pipe connection assembly
[0025] As Figure 1 , 2 shown, the valve body includes a fixed valve sleeve 9, a movable valve head 10, and a spring 11. The outer wall of the casing 8 is installed with the fixed valve sleeve 9 through bolts. The outer wall of the connecting rod 12 is sleeved with the spring 11. One end of the spring 11 is fixedly connected to the outer wall of the casing 8. The other end of the spring 11 is welded with the movable valve head 10 which is also sleeved on the outer wall of the casing 8. The movable valve head 10 presses on the inside of the fixed valve sleeve 9 and is arranged on the other side of the fixed valve sleeve 9 relative to the male head 4. Annular grooves for water passage are provided on the inner wall of the fixed valve sleeve 9 in a circumferential array. The movable valve head 10 is of a frustum-shaped structure. A frustum-shaped groove that cooperates with the movable valve head 10 is provided on the side wall of the fixed valve sleeve 9 in contact with the movable valve head 10. In this embodiment, in order to prevent the water in the special cable drill pipe from flowing out when adding a special cable drill pipe each time during the uphole drilling operation, resulting in the need to fill the special cable drill pipe with water first before continuing the drilling work, the design of the valve body can function as a check valve to solve this problem. When the drill pipe is being connected or during the drilling operation, the flowing water will push the movable valve head 10 open to realize the water flow path. When a drill pipe needs to be added, the water flow is cut off, and the movable valve head 10 tightly presses in the frustum-shaped groove inside the fixed valve sleeve 9 under the elastic force of the spring 11 to form an effective sealing surface; preventing the water in the drill pipe from leaking
[0026] The materials of the female head 5, the casing 8, and the male head 4 are plastic materials. The materials of the female head core 6, the connecting rod 12, and the male head core 3 are copper alloy or stainless steel materials. The movable valve head 10 and the fixed valve sleeve 9 are both plastic materials.
[0027] The above has shown and described the basic principles, main features and advantages of the present utility model. Each component mentioned in the present utility model is a common technology in the existing field. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A one-way conversion short section for mining cable, comprising a short section body (1), characterized in that: A drill rod connection assembly is arranged inside the pup joint body (1); a fixing structure for mounting the drill rod connection assembly is arranged between the drill rod connection assembly and the pup joint body (1); and a valve body for one-way water blocking is installed on the outer side wall of the drill rod connection assembly; The drill pipe connection assembly comprises a casing (8), wherein the casing (8) is arranged inside the short section body (1); a connecting rod (12) is inserted through the inside of the casing (8); the two ends of the connecting rod (12) respectively extend to the outside of the two ends of the casing (8); the two ends of the casing (8) are respectively connected to a male head (4) and a female head (5) through threads; a male head core (3) is inserted into the inside of the male head (4), one end of the connecting rod passes through the male head (4) and is connected to the bottom of the male head core (3) in a threaded connection; a female head core (6) is inserted into the inside of the female head (5), the other end of the connecting rod passes through the female head (5) and is connected to the bottom of the female head core (6) in a threaded connection; a conical spring (18) is fixedly installed on the other end of the female head core (6); The fixing structure comprises a support plate 1 (2) and a support plate 2 (7); the outer wall of the female head (5) is sleeved with the support plate 1 (2); the outer wall of the male head (4) is sleeved with the support plate 2 (7); the outer wall of the support plate 1 (2) is integrally formed with a retaining ring 1 (13); the outer wall of the support plate 2 (7) is integrally formed with a retaining ring 2 (14); the inner wall of the short section body (1) is provided with a fixing groove matched with the retaining ring 1 (13) and the retaining ring 2 (14); the drill rod connection assembly is fixed in the fixing groove by the retaining ring 1 (13) and the retaining ring 2 (14); The valve body comprises a fixed valve sleeve (9), a movable valve head (10), and a spring (11); the outer wall of the sleeve (8) is provided with the fixed valve sleeve (9); the outer wall of the connecting rod (12) is provided with the spring (11); one end of the spring (11) is fixedly connected to the outer wall of the sleeve (8); the other end of the spring (11) is provided with a movable valve head (10) which is also sleeved on the outer side of the sleeve (8); the movable valve head (10) is pressed against the inside of the fixed valve sleeve (9) and is arranged on the other side of the fixed valve sleeve (9) relative to the male head (4); the inside of the fixed valve sleeve (9) is provided with an annular groove for passing water along a circumferential array.
2. A one-way conversion short section for mining cable according to claim 1, characterized in that The connections between the sleeve (8) and the female head (5) and the male head (4) are all sealed by rubber rings; the connections between the male head (4) and the male head core (3), and between the female head (5) and the female head core (6) are all sealed by rubber rings.
3. A one-way conversion short section for mining cable according to claim 1, characterized in that The movable valve head (10) is a truncated cone-shaped structure; the side wall of the fixed valve sleeve (9) in contact with the movable valve head (10) is provided with a truncated cone-shaped groove matching the movable valve head (10).
4. A one-way conversion short section for mining cable according to claim 1, characterized in that The female head (5), the sleeve (8) and the male head (4) are made of plastic, and the female head core (6), the connecting rod (12) and the male head core (3) are made of copper alloy or stainless steel.
5. A one-way conversion short section for mining cable according to claim 1, characterized in that The movable valve head (10) and the fixed valve sleeve (9) are both made of plastic.