Gas monitoring mechanism

Abstract

The utility model provides a gas monitoring mechanism, which comprises a first pipe body, a second pipe body and a third pipe body, wherein the first end of the first pipe body penetrates through a wall body and then extends into a space to be monitored; the second pipe body is arranged in the first pipe body in a penetrating manner; the communicating structure is provided with a first communicating opening, a second communicating opening and a communicating cavity, the first communicating opening and the second communicating opening both communicate with the communicating cavity, and the first end of the first pipe body and the first end of the second pipe body both communicate with the first communicating opening; the third pipe body is communicated with the second communication port, and the third pipe body is connected with the communication structure in a position adjustable manner; the number of the second communication ports is multiple, and the multiple second communication ports are arranged around the communication cavity at intervals. The multiple third pipe bodies are arranged in one-to-one correspondence with the multiple second communicating ports. According to the utility model, the problem of inaccurate goaf gas monitoring in the prior art is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of fire prevention and extinguishing technology in underground coal mines, and more specifically, to a gas monitoring mechanism. Background Technology

[0002] Currently, during weekday coal mining, it is necessary to continuously improve fire prevention and extinguishing measures at the coal mining face. The key to fire prevention and extinguishing at the working face is the monitoring, analysis, and control of gas in the goaf.

[0003] In existing technologies, the method for monitoring gas in goaf areas is to directly bury a steel pipe within the goaf. However, the steel pipe buried in the fireproof sealed wall is often damaged or broken by falling rocks, resulting in inaccurate gas monitoring and hindering fire prevention and extinguishing efforts. Utility Model Content

[0004] The main purpose of this invention is to provide a gas monitoring mechanism to solve the problem of inaccurate gas monitoring in goaf areas in the prior art.

[0005] To achieve the above objectives, this utility model provides a gas monitoring mechanism, comprising: a first tube body, the first end of which passes through a wall and extends into the space to be monitored; a second tube body, which is inserted into the first tube body; a connecting structure having a first connecting port, a second connecting port, and a connecting cavity, wherein both the first and second connecting ports are connected to the connecting cavity, and the first ends of the first and second tube bodies are connected to the first connecting port; a third tube body, which is connected to the second connecting port, and the third tube body is positionally adjustable to the connecting structure; wherein there are multiple second connecting ports, which are spaced apart around the connecting cavity; and there are multiple third tube bodies, which are arranged one-to-one with the multiple second connecting ports.

[0006] Furthermore, the gas monitoring mechanism also includes: chain links, with the third tube body connected to the connecting structure via chain links; wherein each third tube body is connected to the connecting structure via at least two chain links, and the at least two chain links are arranged circumferentially around the third tube body.

[0007] Furthermore, the third tube has multiple through holes, which are spaced apart along the circumferential and / or axial direction of the third tube.

[0008] Furthermore, the gas monitoring device also includes a protective structure, which covers the chain links to protect them.

[0009] Furthermore, the protective structure includes: two first plates arranged opposite to each other; a second plate, the two first plates being connected by the second plate, the second plate being arranged at an angle to each of the first plates to form a first opening around the two first plates, the first opening being downward; wherein, the second plate is located above the chain link.

[0010] Furthermore, the connecting structure is a hollow columnar structure, the inner cavity of the hollow columnar structure forms a connecting cavity, the first end of the hollow columnar structure has a first connecting port; there are three second connecting ports, one of which is located on the second end of the hollow columnar structure, and the other two are spaced apart along the peripheral wall of the hollow columnar structure.

[0011] Furthermore, the gas monitoring mechanism also includes: a connecting plate, the first surface of which is welded to the peripheral wall of the hollow columnar structure, one end of the chain link being welded to the second surface of the connecting plate, and the other end of the chain link being connected to the third tube body.

[0012] Furthermore, the gas monitoring mechanism also includes a liner, disposed between the protective structure and the chain links; wherein the liner is made of rubber or silicone.

[0013] Furthermore, the gas monitoring mechanism also includes: a buffer structure covering at least part of the third tube body; wherein the buffer structure is in multiple sets, and the multiple sets of buffer structures are arranged one-to-one with multiple third tube bodies, and each set of buffer structures includes multiple buffer elements spaced apart along the extension direction of the third tube body, the buffer elements being made of rubber or silicone.

[0014] Furthermore, each buffer component includes: two third plates arranged opposite to each other; an arc-shaped plate, the two third plates being connected by the arc-shaped plate, the two third plates and the arc-shaped plate surrounding each other to form a second opening, the second opening being arranged facing upwards.

[0015] According to the technical solution of this utility model, the gas monitoring mechanism includes a first tube, a second tube, a connecting structure, and a third tube. The first end of the first tube passes through a wall and extends into the space to be monitored. The second tube is inserted into the first tube. The connecting structure has a first connecting port, a second connecting port, and a connecting cavity. Both the first and second connecting ports communicate with the connecting cavity. The first end of both the first and second tubes is connected to the first connecting port. The third tube communicates with the second connecting port, and the third tube is positionally connected to the connecting structure. There are multiple second connecting ports, spaced apart around the connecting cavity; there are also multiple third tubes, each corresponding to one of the multiple second connecting ports. In this way, the second pipe is used to collect gas in the goaf, while multiple third pipes are located in the goaf, and each third pipe extends in a different direction. Even if some third pipes are damaged, gas can still be collected through other third pipes, thereby improving the impact resistance of the gas monitoring mechanism, and thus improving the reliability, robustness and gas detection accuracy of the gas monitoring mechanism. This solves the problem of inaccurate gas monitoring in the goaf in the existing technology and is conducive to the implementation of fire prevention and extinguishing measures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A top view of an embodiment of the gas monitoring mechanism according to the present invention installed on a wall is shown;

[0018] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the protective structure of the gas monitoring mechanism in the diagram;

[0019] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the buffer component of the gas monitoring mechanism.

[0020] The above figures include the following reference numerals:

[0021] 10. First pipe body; 20. Wall; 30. Space to be monitored; 40. Second pipe body; 50. Connecting structure; 51. First connecting port; 52. Second connecting port; 53. Connecting cavity; 60. Third pipe body; 61. Through hole; 70. Chain link; 80. Protective structure; 81. First plate; 82. Second plate; 83. First opening; 90. Buffer structure; 91. Buffer component; 911. Third plate; 912. Arc-shaped plate; 913. Second opening; 100. Connector; 110. Drain valve. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0025] To address the problem of inaccurate gas monitoring in goaf areas in existing technologies, this application provides a gas monitoring mechanism.

[0026] like Figures 1 to 3 As shown, the gas monitoring mechanism includes a first tube 10, a second tube 40, a connecting structure 50, and a third tube 60. The first end of the first tube 10 passes through the wall 20 and extends into the space to be monitored 30. The second tube 40 passes inside the first tube 10. The connecting structure 50 has a first connecting port 51, a second connecting port 52, and a connecting cavity 53. Both the first connecting port 51 and the second connecting port 52 communicate with the connecting cavity 53. The first end of the first tube 10 and the first end of the second tube 40 are both connected to the first connecting port 51. The third tube 60 communicates with the second connecting port 52, and the third tube 60 is connected to the connecting structure 50 in an adjustable position. There are multiple second connecting ports 52, spaced apart around the connecting cavity 53. There are also multiple third tubes 60, each corresponding to one of the multiple second connecting ports 52.

[0027] Applying the technical solution of this embodiment, the second pipe body 40 is used to collect gas in the goaf (the space to be monitored 30), while multiple third pipe bodies 60 are located in the goaf, and the extension directions of each third pipe body 60 are different. Even if some third pipe bodies 60 are damaged, gas can still be collected through other third pipe bodies 60, thereby improving the impact resistance of the gas monitoring mechanism, and thus improving the reliability, robustness and gas detection accuracy of the gas monitoring mechanism. This solves the problem of inaccurate gas monitoring in the goaf in the prior art and is conducive to the implementation of fire prevention and extinguishing measures.

[0028] In this embodiment, multiple third pipe bodies 60 can achieve multi-directional monitoring, thereby reducing the contact surface of collapsed rocks in the goaf area and increasing the impact resistance. Even if a third pipe body 60 in one direction is damaged, the third pipe bodies 60 in other directions can still monitor the gas normally, thus enabling continuous and effective gas detection, ensuring accurate and reliable data, and providing strong data support for fire prevention and extinguishing work.

[0029] In this embodiment, the connecting structure 50, the second pipe 40, and the multiple third pipes 60 can be installed on-site and are easy to use.

[0030] In this embodiment, the first pipe 10 is a steel pipe with a diameter of 108 mm, and its length is determined by the thickness of the wall 20 and the width of the goaf. The second pipe 40 has a diameter of 12 mm.

[0031] In this embodiment, there are three second connecting ports 52, which are arranged at intervals around the connecting cavity 53. There are also three third tubes 60, which are arranged in a one-to-one correspondence with the three second connecting ports 52.

[0032] It should be noted that the number of second connecting ports 52 is not limited to this and can be adjusted according to working conditions and usage requirements.

[0033] Optionally, the second connecting port 52 can be two, four, five, six, or more.

[0034] It should be noted that the number of third tubes 60 is not limited to this, as long as it is the same as the number of second connecting ports 52.

[0035] like Figure 1 As shown, the gas monitoring mechanism also includes chain links 70, through which the third tube 60 is connected to the connecting structure 50. Each third tube 60 is connected to the connecting structure 50 via at least two chain links 70, which are spaced circumferentially around the third tube 60. This use of chain links 70 not only enhances the stability of the connection but also allows the third tube 60 to move freely within a certain range, improving the flexibility and response speed of the monitoring.

[0036] In this embodiment, each third tube 60 is connected to the connecting structure 50 by two chain links 70. The two chain links 70 are located on both sides of the third tube 60, thereby increasing the flexibility of the third tube 60 and enabling the third tube 60 to be multi-directional.

[0037] Specifically, the length of the third tube 60 can be adjusted by increasing or decreasing the number of links in the chain 70.

[0038] Optionally, the third tube body 60 has multiple through holes 61, which are spaced apart along the circumference and / or axial direction of the third tube body 60. This allows the through holes 61 to facilitate gas flow, preventing blockage, increasing the gas collection area, improving the sensitivity and accuracy of gas monitoring, and providing more comprehensive and precise monitoring data. Simultaneously, this arrangement allows for greater flexibility in the placement of the through holes 61 to meet different usage requirements and operating conditions, and also enhances the processing flexibility for operators.

[0039] like Figure 1 and Figure 2 As shown, the gas monitoring mechanism also includes a protective structure 80. The protective structure 80 covers the chain link 70 to protect it. This design of the protective structure 80 effectively prevents damage to the chain link 70 from the external environment, thus protecting its integrity, extending the service life of the gas monitoring mechanism, and reducing maintenance costs.

[0040] like Figure 2As shown, the protective structure 80 includes two first plates 81 and a second plate 82 arranged opposite to each other. The two first plates 81 are connected by the second plate 82, and the second plate 82 is arranged at an angle to each of the first plates 81, forming a first opening 83 around the two first plates 81. The first opening 83 faces downward. The second plate 82 is located above the chain link 70. Optionally, the second plate 82 is perpendicular to each of the first plates 81. This arrangement of the protective structure 80 effectively protects the chain link 70, effectively covering it and preventing it from being damaged by falling rocks, thus affecting the connection stability between the third tube 60 and the connecting structure 50. At the same time, this arrangement simplifies the structure of the protective structure 80, making it easier to manufacture and implement, and reducing the manufacturing cost of the protective structure 80.

[0041] Optionally, the protective structure 80 is a one-piece molded structure.

[0042] like Figure 1 As shown, the connecting structure 50 is a hollow cylindrical structure, with its inner cavity forming a connecting cavity 53. The first end of the hollow cylindrical structure has a first connecting port 51. There are three second connecting ports 52: one is located at the second end of the hollow cylindrical structure, and the other two are spaced apart along the periphery of the hollow cylindrical structure. In this way, the connecting cavity 53 of the hollow cylindrical structure provides a channel for gas flow. The design of three second connecting ports 52 allows the gas monitoring mechanism to monitor gas from multiple directions simultaneously. Even if part of the third tube 60 is damaged, causing the second connecting port 52 connected to that third tube 60 to be blocked, gas monitoring can still be performed through other third tubes 60, thereby improving the comprehensiveness and efficiency of monitoring.

[0043] In this embodiment, the gas monitoring mechanism further includes a connecting plate. The first surface of the connecting plate is welded to the peripheral wall of the hollow columnar structure, one end of the chain link 70 is welded to the second surface of the connecting plate, and the other end of the chain link 70 is connected to the third tube 60. Thus, the use of the connecting plate enhances the connection strength between the chain link 70 and the connecting structure 50, preventing them from detaching and affecting the normal operation of the gas monitoring mechanism. Simultaneously, the connecting plate is welded to both the chain link 70 and the connecting structure 50, improving the connection stability of the three components.

[0044] Optionally, the gas monitoring mechanism also includes a liner, which is disposed between the protective structure 80 and the chain link 70. In this way, the liner acts as a buffer to prevent direct impact between the protective structure 80 and the chain link 70, thus preventing structural damage to both and extending the service life of the gas monitoring mechanism while reducing maintenance costs.

[0045] Optionally, the liner can be made of rubber or silicone. This not only improves the cushioning performance of the liner but also allows for greater flexibility in material selection to meet different usage needs and working conditions, while also increasing the processing flexibility for workers.

[0046] like Figure 1 As shown, the gas monitoring mechanism also includes a buffer structure 90. The buffer structure 90 covers at least a portion of the third tube 60. In this way, the aforementioned arrangement of the buffer structure 90 effectively reduces the vibration and impact experienced by the third tube 60, prevents structural damage to the third tube 60, and improves the impact resistance of the third tube 60.

[0047] Optionally, the buffer structure 90 can be in multiple sets, with each set corresponding to one of the multiple third tubes 60. Each set of buffer structures 90 includes multiple buffer elements 91 spaced apart along the extension direction of the third tube 60, and the buffer elements 91 are made of rubber or silicone. This arrangement not only improves the buffering performance of the buffer structure 90 but also allows for greater flexibility in material selection to meet different usage requirements and working conditions, thus enhancing the processing flexibility of the operators.

[0048] In this embodiment, there are three sets of buffer structures 90, and the three sets of buffer structures 90 are arranged in a one-to-one correspondence with the three third tubes 60.

[0049] like Figure 3 As shown, each buffer component 91 includes two opposing third plates 911 and an arc-shaped plate 912. The two third plates 911 are connected by the arc-shaped plate 912, and the two third plates 911 and the arc-shaped plate 912 surround each other to form a second opening 913, which faces upwards. This arrangement allows the buffer component 91 to better adapt to the shape of the third tube 60, enhancing the buffering effect and ensuring the accuracy and real-time nature of the monitoring data. Simultaneously, this arrangement simplifies the structure of the buffer component 91, making it easier to manufacture and implement, thus reducing the manufacturing cost and difficulty of the buffer component 91.

[0050] Optionally, the length of the third tube 60 is greater than or equal to 2m and less than or equal to 3m.

[0051] In this embodiment, before installing the third tube 60, the inner and outer surfaces of the third tube 60 are first painted with paint for rust prevention and reinforcement to ensure that it will not rust or deform after installation.

[0052] In this embodiment, the third pipe body 60 is welded from a specially thickened steel pipe, which improves the resistance to impact damage from large pieces of gangue and effectively reduces the air leakage channels of the third pipe body 60, ensuring the accuracy of data collection.

[0053] In this embodiment, the gas monitoring device is suitable for use in underground coal mines, including in the working face, installation face, and goaf of the withdrawing working face.

[0054] like Figure 1 As shown, the gas monitoring mechanism also includes a connector 100, through which the two first tubes 10 can be connected.

[0055] like Figure 1 As shown, the gas monitoring mechanism also includes a drain valve 110, which is disposed on the first pipe body 10 for releasing the water buffered in the first pipe body 10.

[0056] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0057] The gas monitoring mechanism includes a first tube, a second tube, a connecting structure, and a third tube. The first end of the first tube passes through the wall and extends into the space to be monitored. The second tube is inserted into the first tube. The connecting structure has a first connecting port, a second connecting port, and a connecting cavity. Both the first and second connecting ports communicate with the connecting cavity. The first ends of both the first and second tubes are connected to the first connecting ports. The third tube communicates with the second connecting ports, and its position is adjustable to the connecting structure. There are multiple second connecting ports, spaced apart around the connecting cavity; there are also multiple third tubes, each corresponding to one of the multiple second connecting ports. In this way, the second pipe is used to collect gas in the goaf, while multiple third pipes are located in the goaf, and each third pipe extends in a different direction. Even if some third pipes are damaged, gas can still be collected through other third pipes, thereby improving the impact resistance of the gas monitoring mechanism, and thus improving the reliability, robustness and gas detection accuracy of the gas monitoring mechanism. This solves the problem of inaccurate gas monitoring in the goaf in the existing technology and is conducive to the implementation of fire prevention and extinguishing measures.

[0058] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0059] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, 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.

[0060] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0061] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 gas monitoring mechanism, characterized in that, include: The first tube (10) extends into the space to be monitored (30) after passing through the wall (20) at its first end. The second tube (40) is inserted inside the first tube (10); The connecting structure (50) has a first connecting port (51), a second connecting port (52) and a connecting cavity (53). The first connecting port (51) and the second connecting port (52) are both connected to the connecting cavity (53). The first end of the first tube (10) and the first end of the second tube (40) are both connected to the first connecting port (51). The third tube (60) is connected to the second communication port (52), and the third tube (60) is positionally connected to the communication structure (50); There are multiple second communication ports (52), and multiple second communication ports (52) are arranged at intervals around the communication cavity (53); there are multiple third tubes (60), and multiple third tubes (60) are arranged one-to-one with multiple second communication ports (52).

2. The gas monitoring mechanism according to claim 1, characterized in that, The gas monitoring device also includes: The third tube (60) is connected to the connecting structure (50) via the chain link (70); Each of the third tubes (60) is connected to the connecting structure (50) by at least two links (70), and the at least two links (70) are arranged circumferentially around the third tube (60).

3. The gas monitoring mechanism according to claim 1, characterized in that, The third tube (60) has a plurality of through holes (61), which are spaced apart along the circumferential and / or axial direction of the third tube (60).

4. The gas monitoring mechanism according to claim 2, characterized in that, The gas monitoring device also includes: A protective structure (80) is provided over the chain link (70) to protect the chain link (70).

5. The gas monitoring mechanism according to claim 4, characterized in that, The protective structure (80) includes: Two first plates (81) are set opposite to each other; The second plate (82) connects the two first plates (81) through the second plate (82). The second plate (82) is set at an angle to each of the first plates (81) so as to form a first opening (83) around the two first plates (81). The first opening (83) is set downward. The second plate (82) is located above the chain link (70).

6. The gas monitoring mechanism according to claim 2, characterized in that, The connecting structure (50) is a hollow columnar structure, and the inner cavity of the hollow columnar structure forms the connecting cavity (53). The first end of the hollow columnar structure has the first connecting port (51). There are three second connecting ports (52). One second connecting port (52) is located on the second end of the hollow columnar structure, and the other two second connecting ports (52) are spaced apart along the peripheral wall of the hollow columnar structure.

7. The gas monitoring mechanism according to claim 6, characterized in that, The gas monitoring device also includes: A connecting plate, the first plate surface of which is welded to the peripheral wall of the hollow columnar structure, one end of the chain link (70) is welded to the second plate surface of the connecting plate, and the other end of the chain link (70) is connected to the third tube (60).

8. The gas monitoring mechanism according to claim 4, characterized in that, The gas monitoring device also includes: A liner is disposed between the protective structure (80) and the chain link (70); The liner is made of rubber or silicone.

9. The gas monitoring mechanism according to claim 1, characterized in that, The gas monitoring device also includes: A buffer structure (90) covers at least a portion of the third tube (60); The buffer structure (90) is in multiple sets, and the multiple sets of buffer structures (90) are arranged one-to-one with the multiple third tubes (60). Each set of buffer structures (90) includes multiple buffer members (91) spaced apart along the extension direction of the third tube (60). The buffer members (91) are made of rubber or silicone.

10. The gas monitoring mechanism according to claim 9, characterized in that, Each of the aforementioned buffers (91) includes: Two third plates (911) are set opposite to each other; An arc-shaped plate (912) is formed, and two third plates (911) are connected by the arc-shaped plate (912). The two third plates (911) and the arc-shaped plate (912) surround each other to form a second opening (913), which is set upward.

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