Deep hole plugging device

Abstract

The utility model provides a deep hole plugging device. The deep hole plugging device comprises a main pipe provided with a liquid leakage hole, and one end of the main pipe is communicated with the external space; the expansion pipe is arranged outside the main pipe in a sleeving mode, the diameter of at least part of the expansion pipe is larger than that of the main pipe so that a liquid storage space can be formed between the expansion pipe and the main pipe, and the inner space of the main pipe communicates with the liquid storage space through the liquid leakage holes. The deep hole plugging device solves the problems that a deep hole plugging device in the prior art is complex in structure and poor in plugging effect.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine equipment, and more specifically, to a deep hole plugging device. Background Art

[0002] After deep hole drilling operations in mines, deep holes are generally left in the roadway. If the deep holes are not plugged, the liquid in the deep holes will flow back into the roadway, resulting in serious water accumulation in the roadway and even production accidents, forming major safety hazards. The deep hole plugging devices in the prior art often have a relatively complex structure, which makes the assembly and disassembly processes time-consuming, reduces the efficiency of maintenance and replacement of the deep hole plugging device, and at the same time, it is difficult to ensure the plugging effect.

[0003] That is to say, the deep hole plugging devices in the prior art have problems of complex structure and poor plugging effect. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a deep hole plugging device to solve the problems of complex structure and poor plugging effect of the deep hole plugging devices in the prior art.

[0005] To achieve the above purpose, according to one aspect of the utility model, a deep hole plugging device is provided, including: a main pipe, with liquid leakage holes provided on the main pipe, and one end of the main pipe communicating with the external space; an expansion pipe, sleeved outside the main pipe, and at least part of the diameter of the expansion pipe being larger than that of the main pipe to form a liquid storage space therebetween, and the internal space of the main pipe communicating with the liquid storage space through the liquid leakage holes.

[0006] Further, the main pipe has a groove, the groove is continuously arranged around the circumference of the main pipe to form an annular groove, and the liquid leakage holes are located at the groove.

[0007] Further, the deep hole plugging device further includes a sealing ring, which is arranged at the groove and selectively plugs the liquid leakage holes.

[0008] Further, the sealing ring is a rubber ring.

[0009] Further, the deep hole plugging device further includes a liquid inlet plugging member, which is connected to one end of the main pipe, and the main pipe communicates with the external space through the liquid inlet plugging member.

[0010] Further, the deep hole plugging device further includes a bolt joint and a reverse thread connecting member, one end of the bolt joint is connected to the liquid inlet plugging member, and the other end of the bolt joint is connected to the reverse thread connecting member.

[0011] Further, the internal of the reverse thread connecting member has a first thread section and a second thread section, the directions of the first thread section and the second thread section are opposite, and the reverse thread connecting member is connected to the bolt joint through one of the first thread section and the second thread section.

[0012] Further, the liquid leakage holes are one or more. When there are multiple liquid leakage holes, the multiple liquid leakage holes are arranged at intervals around the circumferential direction of the main pipe; and / or the distances from the liquid leakage holes to both ends of the main pipe are equal.

[0013] Further, the deep hole plugging device further includes a plugging end cover, a first locking hoop and a second locking hoop. The other end of the main pipe is plugged by the plugging end cover, and both ends of the expansion pipe are locked on the outer wall surface of the main pipe through the first locking hoop and the second locking hoop respectively.

[0014] Further, the main pipe is a metal pipe and the expansion pipe is a rubber pipe.

[0015] Applying the technical solution of the present utility model, a deep hole plugging device is provided, which includes a main pipe and an expansion pipe. The main pipe is provided with liquid leakage holes, and one end of the main pipe is communicated with the external space; the expansion pipe is sleeved outside the main pipe, and the diameter of at least part of the expansion pipe is larger than that of the main pipe to form a liquid storage space therebetween, and the internal space of the main pipe is communicated with the liquid storage space through the liquid leakage holes.

[0016] By setting one end of the main pipe to be communicated with the external space, when the deep hole plugging device of the present application is inserted into the deep hole, liquid can be supplied to the inside of the main pipe through the end communicated with the external space, so as to realize the introduction of the liquid. By providing liquid leakage holes on the main pipe and sleeving the expansion pipe outside the main pipe, when the pressure inside the main pipe is too high after injecting the liquid, the liquid inside the main pipe can flow into the space between the expansion pipe and the main pipe through the liquid leakage holes. By setting the diameter of at least part of the expansion pipe to be larger than that of the main pipe, a liquid storage space can be formed between the expansion pipe and the main pipe, so as to provide a storage space for the liquid flowing out of the liquid leakage holes. Further, during the continuous liquid supply process, the liquid in the main pipe continuously flows into the liquid storage space through the liquid leakage holes, causing the expansion pipe to continuously expand, and then plugging the deep hole port to ensure the plugging effect of the deep hole plugging device. The deep hole plugging device of the present application has the advantages of simple structure, convenient disassembly and good plugging effect, and can realize the rapid plugging of the deep hole port. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 The structural schematic diagram of the deep hole plugging device of an optional embodiment of the present utility model is shown;

[0019] Figure 2 Shown is Figure 1 The cross-sectional schematic diagram of the deep hole plugging device in

[0020] Among them, the above-mentioned drawings include the following reference numerals:

[0021] 1. Reverse-threaded connector; 2. Liquid inlet plugging member; 21. Bolt joint; 3. First locking hoop; 4. Expansion tube; 5. Second locking hoop; 6. Plugging end cover; 7. Main pipe; 71. Groove; 72. Liquid leakage hole; 73. Sealing ring. Detailed implementation mode

[0022] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will describe the present utility model in detail with reference to the drawings and in conjunction with the embodiments.

[0023] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0024] In the present utility model, unless otherwise stated, the orientation terms such as "upper, lower, top, bottom" are usually in the direction shown in the drawings, or in terms of the vertical, perpendicular or gravitational direction of the component itself; similarly, for the convenience of understanding and description, "inner, outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms do not limit the present utility model.

[0025] After deep hole drilling operations in mines, deep holes are usually left in the roadway. If these deep holes are not plugged in time, the liquid in the deep holes may flow back into the roadway, causing water accumulation in the roadway, and even inducing production accidents and forming major safety hazards in severe cases. To solve this problem, deep hole plugging devices are usually used. However, the deep hole plugging devices in the prior art often have a relatively complex structure, which not only increases the time for assembly and disassembly, but also reduces the efficiency of maintenance and replacement. In addition, it is difficult to ensure the plugging effect.

[0026] To solve the problems of complex structure and poor plugging effect of the deep hole plugging device in the prior art, the present utility model provides a deep hole plugging device.

[0027] As Figure 1 and Figure 2 shown, the deep hole plugging device includes a main pipe 7 and an expansion tube 4. A liquid leakage hole 72 is provided on the main pipe 7, and one end of the main pipe 7 is communicated with the external space; the expansion tube 4 is sleeved outside the main pipe 7, and the diameter of at least part of the expansion tube 4 is larger than that of the main pipe 7 to form a liquid storage space therebetween, and the internal space of the main pipe 7 is communicated with the liquid storage space through the liquid leakage hole 72.

[0028] By setting one end of the main pipe 7 to communicate with the external space, when the deep-hole plugging device of the present application is inserted into the deep hole, liquid can be supplied into the interior of the main pipe 7 through the end of the main pipe 7 communicating with the external space, thereby realizing the introduction of liquid. By providing leakage holes 72 on the main pipe 7 and sleeving the expansion tube 4 outside the main pipe 7, when the pressure inside the main pipe 7 is too high after liquid injection, the liquid inside the main pipe 7 can flow into the space between the expansion tube 4 and the main pipe 7 through the leakage holes 72. By setting the diameter of at least part of the expansion tube 4 to be larger than the diameter of the main pipe 7, a liquid storage space can be formed between the expansion tube 4 and the main pipe 7, thereby providing a storage space for the liquid flowing out of the leakage holes 72. Further, during the continuous liquid supply process, the liquid in the main pipe 7 continuously flows into the liquid storage space through the leakage holes 72, causing the expansion tube 4 to continuously expand, and then plugging the deep-hole port to ensure the plugging effect of the deep-hole plugging device. The deep-hole plugging device of the present application has the advantages of simple structure, convenient disassembly, and good plugging effect, and can realize the rapid plugging of the deep-hole port.

[0029] As Figure 2 shown, the main pipe 7 has a groove 71, the groove 71 is provided on the outer wall surface of the main pipe 7, and the groove 71 is continuously arranged around the circumference of the main pipe 7 to form an annular groove 71 with the head and tail connected. The leakage holes 72 are located at the groove 71, specifically at the bottom of the groove 71. Specifically, the diameter of the annular groove 71 is smaller than the diameter of the main pipe 7. The deep-hole plugging device further includes a sealing ring 73, and the sealing ring 73 is provided at the groove 71 and selectively plugs the leakage holes 72. Such a setting makes the groove 71 provide a setting position for the sealing ring 73, enabling the sealing ring 73 to be tightened at the groove 71, thereby being able to block the leakage holes 72. In addition, the diameter of the groove 71 is smaller than the diameter of the main pipe 7, which is beneficial to the limitation of the sealing ring 73, avoiding the displacement or detachment of the sealing ring 73 from the groove 71, and thus avoiding the risk of the sealing ring 73 sliding on the main pipe 7.

[0030] It should be noted that the sealing ring 73 selectively seals the liquid leakage hole 72. The sealing ring 73 is an elastic sealing ring. Such a setting enables the elastic sealing ring to generate a tightening pressure on the main pipe 7, thereby ensuring the sealing effect of the elastic sealing ring on the liquid leakage hole 72. When the internal hydraulic pressure in the main pipe 7 is too high, the liquid in the main pipe 7 can break through the tightening pressure of the sealing ring 73 and flow into the liquid storage space through the liquid leakage hole 72 to realize the expansion of the expansion tube 4. In the non-liquid supply state and when the internal hydraulic pressure in the main pipe 7 does not reach the conduction threshold of the liquid leakage hole 72, the sealing ring 73 can stably cover and seal the liquid leakage hole 72, so that the liquid leakage hole 72 is not connected to the liquid storage space, and the liquid in the liquid storage space can be prevented from flowing back into the main pipe 7 through the liquid leakage hole 72, achieving the effect of preventing liquid backflow. Through the cooperation of the groove 71, the liquid leakage hole 72 and the sealing ring 73, the one-way conduction function of the liquid leakage hole 72 can be realized, enabling the liquid to only flow from the inside of the main pipe 7 to the liquid storage space, and effectively preventing the liquid in the liquid storage space from flowing back into the main pipe 7, avoiding potential safety hazards.

[0031] In a specific embodiment of the present application, the sealing ring 73 is a rubber ring. Rubber has the advantages of high elasticity and wear resistance, and has good sealing performance. Setting the material of the sealing ring 73 as rubber is beneficial to preventing liquid leakage, so that the sealing ring 73 has good performance in preventing backflow. In addition, rubber materials are relatively common and have a low price, which is beneficial to reducing the cost of the deep hole plugging device of the present application.

[0032] Specifically, the liquid leakage hole 72 is one or more. In Figure 1 the shown specific embodiment, the liquid leakage hole 72 is one, and the distances from the liquid leakage hole 72 to both ends of the main pipe 7 are equal. That is to say, the liquid leakage hole 72 is located in the middle of the main pipe 7. Such a setting is beneficial for the liquid inside the main pipe 7 to flow out evenly from the liquid leakage hole 72. In an embodiment not shown in the figures of the present application, the liquid leakage hole 72 is multiple, and the multiple liquid leakage holes 72 are arranged at intervals around the circumference of the main pipe 7. That is to say, the multiple liquid leakage holes 72 are arranged at intervals at the annular groove 71. Setting the liquid leakage hole 72 as multiple and arranging the multiple liquid leakage holes 72 at intervals around the circumference of the main pipe 7 is beneficial to increasing the flow rate of the liquid inside the main pipe 7 flowing into the liquid storage space, thereby accelerating the expansion speed of the expansion tube 4 and improving the efficiency of deep hole plugging. It should be noted that the number of the liquid leakage holes 72 can be selected according to the actual situation.

[0033] Such as Figure 1As shown in the figure, the deep-hole plugging device further includes a liquid inlet plugging member 2. The liquid inlet plugging member 2 is connected to one end of the main pipe 7, and the main pipe 7 is communicated with the external space through the liquid inlet plugging member 2. Specifically, the main pipe 7 is connected to an external liquid supply pipeline through the liquid inlet plugging member 2. When the liquid inlet plugging member 2 is communicated with the external liquid supply pipeline, the liquid supply pipeline can supply liquid into the main pipe 7. It should be noted that in the non-liquid supply state, the deep-hole plugging device needs to be inserted into the inside of the deep hole, and one end of the liquid inlet plugging member 2 is arranged close to the port of the deep hole.

[0034] It should be noted that the liquid inlet plugging member 2 covers the end of the main pipe 7, and a part of the liquid inlet plugging member 2 is located inside the main pipe 7. The center of the liquid inlet plugging member 2 has a communication hole. Such a setting is beneficial to ensuring the connection stability between the liquid inlet plugging member 2 and the main pipe 7, and at the same time ensuring that the main pipe 7 can be stably connected to the external liquid supply pipeline through the liquid inlet plugging member 2.

[0035] As Figure 1 shown in the figure, the deep-hole plugging device further includes a bolt joint 21 and a reverse-thread connecting member 1. One end of the bolt joint 21 is connected to the liquid inlet plugging member 2, and the other end of the bolt joint 21 is connected to the reverse-thread connecting member 1. Specifically, the liquid inlet plugging member 2, the bolt joint 21 and the reverse-thread connecting member 1 are sequentially arranged between one end of the main pipe 7 and the external liquid supply pipeline. The reverse-thread connecting member 1 can be threadedly connected to the external liquid supply pipeline, and the bolt joint 21 can connect the reverse-thread connecting member 1 to the main pipe 7, so as to controllably introduce liquid into the main pipe 7.

[0036] Specifically, the inside of the reverse-thread connecting member 1 has a first thread section and a second thread section. The direction of the first thread section is opposite to that of the second thread section. The reverse-thread connecting member 1 is connected to the bolt joint 21 through one of the first thread section and the second thread section, and the reverse-thread connecting member 1 is connected to the liquid supply pipeline through the other of the first thread section and the second thread section. Specifically, the reverse-thread connecting member 1 is connected to the bolt joint 21 through the first thread section and is connected to the external liquid supply pipeline through the second thread section. Such a setting enables the first thread section and the second thread section of the reverse-thread connecting member 1 to be respectively connected to two thread surfaces. Only one reverse-thread connecting member 1 can be used to connect the bolt joint 21 to the liquid supply pipeline, which is beneficial to simplifying the structure of the deep-hole plugging device. The reverse-thread connecting member 1 can be detached from the external liquid supply pipeline by reverse screwing, so that the whole deep-hole plugging device can be left in the deep-hole port, thereby realizing deep-hole plugging, making the disassembly of the external liquid supply pipeline more convenient, and improving the operation convenience of the deep-hole plugging device. In addition, since the direction of the first thread section is opposite to that of the second thread section, reverse screwing to detach the external liquid supply pipeline from the reverse-thread connecting member 1 will not affect the connection between the reverse-thread connecting member 1 and the bolt joint 21, which is beneficial to ensuring the more stable structure of the deep-hole plugging device.

[0037] It should be noted that the external shape of the reverse-threaded connecting member 1 is a hollow hexagonal columnar structure.

[0038] As Figure 1 shown, the deep-hole plugging device further includes a plugging end cap 6, a first locking hoop 3 and a second locking hoop 5. The other end of the main pipe 7 is plugged by the plugging end cap 6, and both ends of the expansion pipe 4 are locked to the outer wall surface of the main pipe 7 by the first locking hoop 3 and the second locking hoop 5 respectively. Specifically, the plugging end cap 6 is arranged at one end of the main pipe 7 away from the liquid inlet plugging member 2, the second locking hoop 5 is arranged close to the plugging end cap 6, and the first locking hoop 3 is arranged close to the liquid inlet plugging member 2. Through the first locking hoop 3 and the second locking hoop 5, the expansion pipe 4 can be fixed on the main pipe 7, which is beneficial to avoiding the risk of the expansion pipe 4 detaching from the main pipe 7 when it expands.

[0039] It should be noted that the plugging end cap 6 is connected to the end of the main pipe 7 by welding. Such an arrangement can improve the tightness of the main pipe 7, prevent liquid leakage, and form a sealed space inside the main pipe 7. Thus, during the subsequent liquid supply process, the pressure generated inside the main pipe 7 can enable the liquid to flow into the liquid storage space through the liquid leakage holes 72.

[0040] Specifically, the main pipe 7 is a metal pipe, and the expansion pipe 4 is a rubber pipe. By setting the main pipe 7 as a metal pipe, the firmness of the main pipe 7 can be improved, making the main pipe 7 not easily break when subjected to pressure, which is beneficial to preventing the main pipe 7 from rupturing and extending the service life of the deep-hole plugging device. Setting the expansion pipe 4 as a rubber pipe can make the expansion pipe 4 have high elasticity, realize the expansion of the expansion pipe 4, and thus realize the function of plugging the deep-hole port.

[0041] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0044] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A deep hole plugger, characterized in that: include: A main pipe (7), wherein a leakage hole (72) is provided on the main pipe (7), and one end of the main pipe (7) is in communication with an external space; An expansion tube (4), wherein the expansion tube (4) is sleeved on the outside of the main tube (7), and the diameter of at least part of the expansion tube (4) is larger than the diameter of the main tube (7) so as to form a liquid storage space between the two, and the internal space of the main tube (7) is connected to the liquid storage space through the liquid leakage hole (72).

2. The deep hole plugger according to claim 1, characterized in that: The main pipe (7) has a groove (71), and the groove (71) is continuously arranged around the circumference of the main pipe (7) to form an annular groove (71), and the leakage hole (72) is located at the groove (71).

3. The deep hole plugger according to claim 2, characterized in that: The deep hole plugger further comprises a sealing ring (73), wherein the sealing ring (73) is arranged at the groove (71) and selectively plugs the leakage hole (72).

4. The deep hole plugger according to claim 3, characterized in that: The sealing ring (73) is a rubber ring.

5. The deep hole plugger according to claim 1, characterized in that: The deep hole plugger also includes a liquid inlet plugging piece (2), the liquid inlet plugging piece (2) is connected to one end of the main pipe (7), and the main pipe (7) is connected to the external space through the liquid inlet plugging piece (2).

6. The deep hole plugger according to claim 5, characterized in that: The deep hole plugger further comprises a bolt joint (21) and a reverse thread connector (1), one end of the bolt joint (21) being connected to the liquid inlet plugging component (2), and the other end of the bolt joint (21) being connected to the reverse thread connector (1).

7. The deep hole plugger according to claim 6, characterized in that: The reverse thread connector (1) has a first thread segment and a second thread segment inside, the direction of the first thread segment is opposite to the direction of the second thread segment, and the reverse thread connector (1) is connected to the bolt joint (21) via one of the first thread segment and the second thread segment.

8. The deep hole plugger according to claim 1, characterized in that: There are one or more leakage holes (72). When there are multiple leakage holes (72), the multiple leakage holes (72) are arranged at intervals around the circumference of the main pipe (7); and / or The distances between the leakage hole (72) and the two ends of the main pipe (7) are equal.

9. The deep hole plugger according to claim 1, characterized in that: The deep hole plugger also includes a plugging end cover (6), a first locking hoop (3) and a second locking hoop (5); the other end of the main pipe (7) is plugged by the plugging end cover (6), and the two ends of the expansion pipe (4) are respectively locked on the outer wall surface of the main pipe (7) by the first locking hoop (3) and the second locking hoop (5).

10. The deep hole plugger according to any one of claims 1 to 9, characterized in that: The main pipe (7) is a metal pipe, and the expansion pipe (4) is a rubber pipe.

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