A gas parameter measuring device for mine pipelines

Abstract

This utility model relates to the field of gas parameter measurement technology for mine pipelines, specifically to a gas parameter measuring device for mine pipelines, including a gas parameter measuring instrument body and an intrinsically safe pipeline. The gas parameter measuring instrument body includes an interface. This utility model involves fixing a valve to the outside of the intrinsically safe pipeline, then connecting a flexible hose to the interface, and inserting a tube into the connecting pipe. After insertion into the designated position, a first locking groove is engaged to secure the connection, preventing short insertions and easy detachment. The locking connection prevents the tube from slipping out, and the curved surface facilitates insertion and removal, making operation more convenient. The cooperation of the second and first convex rings compresses the inner and outer walls of the sliding sealing sleeve. The rebound of the support column and cavity ensures a tighter connection between the sealing sleeve and the tube and connecting pipe, achieving a better sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of gas parameter measurement technology for mine pipelines, specifically a gas parameter measurement device for mine pipelines. Background Technology

[0002] The working face is the main workplace for underground workers and the core location for coal production, output, and transportation. The safety of the working face is the foundation for ensuring the safety of underground workers and for continuous and stable production. However, gas problems have always been a major hidden danger at the working face. Gas outbursts from the coal face are one of the main sources of gas outbursts at the working face and even the entire mine. Therefore, the measurement of gas parameters in intrinsically safe pipelines is a key link in ensuring safe production in coal mines.

[0003] The existing gas parameter measuring devices use a direct plug-in connection when connecting to valves on the pipeline. However, this simple plug-in connection is not very stable and is prone to accidental contact with the connecting pipe, which can lead to loosening of the connection. Furthermore, the connection is only sealed with a simple, basic sealing element, which is not very effective.

[0004] Therefore, a gas parameter measuring device for mine pipelines is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a gas parameter measuring device for mining pipelines. It solves the problem that existing gas parameter measuring devices use a direct plug-in connection when connecting the connecting pipe to the valve on the pipeline. This simple plug-in connection has poor stability, is prone to accidental contact with the connecting pipe, leading to loosening of the connection, and the connection is only sealed with a simple sealing element, resulting in poor sealing performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a gas parameter measuring instrument body and an intrinsically safe pipeline. The gas parameter measuring instrument body includes an interface, a flexible tube connected to the port of the interface, a valve fixedly connected to the outside of the intrinsically safe pipeline, a plug fixedly connected to one end of the valve, a connecting pipe fixedly connected to one end of the plug, and an insertion tube fixedly connected to one end of the flexible tube. A fixing mechanism is provided at the connection between the connecting pipe and the insertion tube. The fixing mechanism includes a buckle, an arc surface, and a first groove. The buckle is fixedly connected inside the connecting pipe, the arc surface is located at one end of the buckle, and the first groove is located inside the connecting pipe.

[0007] Preferably, the outer wall of the connecting tube is in contact with the inner wall of the insertion tube, and the buckle is engaged inside the first slot. There are four buckles and four first slots.

[0008] Preferably, a sealing mechanism is provided on the outer side of the insertion tube. The sealing mechanism includes a first inclined surface, a second convex ring, a sealing sleeve, a through hole, and a second inclined surface. The first inclined surface is disposed inside the connecting tube. The second convex ring is fixedly connected to the outer wall of the insertion tube. The sealing sleeve is slidably sleeved on the outer wall of the second convex ring. The through hole is opened on the outer side of the sealing sleeve. The second inclined surface is opened on the outer side of the port of the sealing sleeve. The first convex ring is fixedly connected inside the connecting tube. A cavity is opened inside the sealing sleeve. A support column is fixedly connected inside the cavity. A hook plate is fixedly connected to the outer side of the sealing sleeve. A bending part is provided on the outer side of the connecting tube. The hook plate is L-shaped and one end of the hook plate is engaged with the bending part.

[0009] Preferably, the inner wall of the through hole fits against the outer wall of the insertion tube, and the second convex rings are equidistantly distributed on the outer wall of the insertion tube.

[0010] Preferably, the second inclined surface and the first inclined surface are in contact, and the sealing sleeve is slidably inserted into the inside of the connecting tube.

[0011] Preferably, the cavity is arranged in a ring shape, the support columns are equidistantly distributed inside the cavity, and the two ends of the support columns are fixedly connected to the two sides of the cavity wall respectively.

[0012] Preferably, the gas parameter measuring instrument body is internally fixedly connected to a top plate, the top of the top plate is fixedly connected to a second slot, and the top of the top plate is provided with a cover plate.

[0013] Preferably, a rubber pad is fixedly connected to the bottom of the cover plate, and the bottom of the rubber pad fits into the port of the interface.

[0014] Compared with the prior art, this utility model provides a gas parameter measuring device for mine pipelines, which has the following advantages: A valve is fixedly connected to the outside of the intrinsically safe pipeline. Then, the hose is connected to the interface, and the insert is inserted into the connecting pipe. After being inserted into the designated position, the first slot is engaged with the snap fastener to fix the connection and prevent the insertion from being too short and easy to fall off. The snap fastener connection can prevent the insert from slipping out, and the arc surface design also makes it easier to insert and remove the insert, making the operation more convenient.

[0015] One end of the hook plate is engaged with the bend to fix the position of the sealing sleeve. At this time, the outer wall of the sealing sleeve is in contact with the inner wall of the connecting tube, and the inner wall of the sealing sleeve is in contact with the outer wall of the insertion tube, thereby achieving a sealing effect. The cooperation of the second convex ring and the first convex ring can compress the inner and outer walls of the sliding sealing sleeve. Through the rebound of the support column and the cavity, the connection between the sealing sleeve and the insertion tube and the connecting tube is made tighter, achieving a better sealing effect.

[0016] The second and first convex rings also serve as anti-slip devices, indirectly preventing the insertion tube from detaching. This effectively prevents external gas from entering the pipe during testing, thus avoiding affecting measurement accuracy and preventing gas leakage, providing better protection for testing personnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connecting pipe structure of this utility model; Figure 3 This is a cross-sectional view of the connecting pipe of this utility model; Figure 4 This is a cross-sectional view of the sealing sleeve of this utility model; Figure 5 This is a schematic diagram of the cover plate structure of this utility model; Figure 6 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Gas parameter measuring instrument body; 2. Interface; 3. Hoses; 4. Intrinsically safe pipe; 5. Valve; 6. Plug; 7. Connecting pipe; 8. Insert pipe; 9. First inclined surface; 10. First convex ring; 11. Buckle; 12. Arc surface; 13. First slot; 14. Second convex ring; 15. Sealing sleeve; 16. Through hole; 18. Second inclined surface; 19. Cavity; 20. Support column; 21. Hook plate; 22. Top plate; 23. Second slot; 24. Cover plate; 25. Bending part. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figure 1 - Figure 6This embodiment of a gas parameter measuring device for mining pipelines includes a gas parameter measuring instrument body 1 and an intrinsically safe pipeline 4. The gas parameter measuring instrument body 1 includes an interface 2, and a flexible hose 3 is connected to the port of the interface 2. A valve 5 is fixedly connected to the outside of the intrinsically safe pipeline 4. A plug 6 is fixedly connected to one end of the valve 5. A connecting pipe 7 is fixedly connected to one end of the plug 6. An insertion tube 8 is fixedly connected to one end of the flexible hose 3. A fixing mechanism is provided at the connection between the connecting pipe 7 and the insertion tube 8. The fixing mechanism includes a buckle 11, an arc surface 12, and a first groove 13. The buckle 11 is fixedly connected to the inside of the connecting pipe 7. The arc surface 12 is located at one end of the buckle 11. The first groove 13 is located inside the connecting pipe 7. Since the insertion tube 8 is located inside the connecting pipe 7 after the insertion tube 8 is inserted into the connecting pipe 7, the first groove 13 is also located inside the connecting pipe 7. The first groove 13 is opened on the inside side of the port of the insertion tube 8.

[0021] A valve 5 is fixedly connected to the outside of the intrinsically safe pipeline 4. Then, the hose 3 is connected to the interface 2, and the insertion tube 8 is inserted into the connecting tube 7. After being inserted into the designated position, the buckle 11 engages with the first slot 13 to fix the insertion and prevent the insertion from being too short and easily falling off. The valve 5 is opened, and the gas in the intrinsically safe pipeline 4 enters the gas parameter measuring instrument body 1. The parameters are measured by the gas parameter measuring instrument body 1. The buckle 11 connection can prevent the insertion tube 8 from slipping off, and the arc surface 12 also facilitates the insertion and removal of the insertion tube 8, making the operation more convenient.

[0022] Please see Figure 6 The outer wall of the connecting tube 7 fits against the inner wall of the insertion tube 8, and the buckle 11 is snapped into the inside of the first slot 13. There are four buckles 11 and four slots 13.

[0023] To achieve a better sealing effect, a sealing mechanism is provided on the outside of the insertion tube 8. The sealing mechanism includes a first inclined surface 9, a second convex ring 14, a sealing sleeve 15, a through hole 16, and a second inclined surface 18. The first inclined surface 9 is located inside the connecting tube 7. The second convex ring 14 is fixedly connected to the outer wall of the insertion tube 8. The sealing sleeve 15 is slidably sleeved on the outer wall of the second convex ring 14. The through hole 16 is opened on the outside of the sealing sleeve 15. The second inclined surface 18 is opened on the outside of the port of the sealing sleeve 15. The first convex ring 10 is fixedly connected inside the connecting tube 7. A cavity 19 is opened inside the sealing sleeve 15. A support column 20 is fixedly connected inside the cavity 19. A hook plate 21 is fixedly connected to the outside of the sealing sleeve 15. A bending part 25 is provided on the outside of the connecting tube 7. The hook plate 21 has an L-shaped structure. One end of the hook plate 21 is engaged with the bending part 25. The sealing sleeve 15 is made of silicone material.

[0024] After the insertion tube 8 and the connecting tube 7 are connected, the sliding sealing sleeve 15 is inserted into the connecting tube 7, and one end of the hook plate 21 is engaged with the bend 25 to fix the position of the sealing sleeve 15. At this time, the outer wall of the sealing sleeve 15 is in contact with the inner wall of the connecting tube 7, and the inner wall of the sealing sleeve 15 is in contact with the outer wall of the insertion tube 8, thereby achieving a sealing effect. The cooperation of the second convex ring 14 and the first convex ring 10 can squeeze the inner and outer walls of the sliding sealing sleeve 15, compressing the cavity 19 and squeezing the support column 20. Through the rebound of the support column 20 and the cavity 19, the connection between the sealing sleeve 15 and the insertion tube 8 and the connecting tube 7 is tighter, achieving a better sealing effect. The second convex ring 14 and the first convex ring 10 can also play an anti-slip role and indirectly play a secondary anti-dislodgement role for the insertion tube 8. This effectively prevents external gas from entering the pipeline during testing, affecting the measurement accuracy, and also prevents gas leakage, providing better protection for the testing personnel.

[0025] Please see Figures 3-4 The inner wall of the through hole 16 fits against the outer wall of the insertion tube 8. The second convex ring 14 is equidistantly distributed on the outer wall of the insertion tube 8. The second inclined surface 18 fits against the first inclined surface 9. The sealing sleeve 15 is slidably inserted into the inside of the connecting tube 7. The cavity 19 is annularly arranged. The support columns 20 are equidistantly distributed inside the cavity 19. The two ends of the support columns 20 are fixedly connected to the two sides of the wall of the cavity 19, respectively.

[0026] To protect interface 2, a top plate 22 is fixedly connected inside the main body 1 of the gas parameter measuring instrument. A second slot 23 is fixedly connected to the top of the top plate 22. A cover plate 24 is provided on the top of the top plate 22. A rubber pad is fixedly connected to the bottom of the cover plate 24. The bottom of the rubber pad is in contact with the port of interface 2. After the equipment is used, the cover plate 24 is connected to the top plate 22, and the bottom of the rubber pad is in contact with the port of interface 2 to prevent foreign objects from entering interface 2 and affecting the subsequent use of interface 2.

[0027] The working principle of the above embodiments is as follows: A valve 5 is fixedly connected to the outside of the intrinsically safe pipeline 4. Then, the hose 3 is connected to the interface 2, and the insertion tube 8 is inserted into the connecting tube 7. After insertion into the designated position, the buckle 11 engages with the first slot 13 to secure the connection and prevent short insertions that could easily fall off. The valve 5 is opened, and the gas in the intrinsically safe pipeline 4 enters the gas parameter measuring instrument body 1. The gas parameter measuring instrument body 1 measures the parameters. The buckle 11 connection prevents the insertion tube 8 from slipping out, and the arc surface 12 facilitates the insertion and removal of the insertion tube 8, making operation more convenient. After the insertion tube 8 is inserted into the connecting tube 7, the sliding sealing sleeve 15 is inserted into the connecting tube 7, and one end of the hook plate 21 engages with the bend 25 to fix the position of the sealing sleeve 15. At this time, the outer wall of the sealing sleeve 15 is in contact with the inner wall of the connecting tube 7, and the inner wall of the sealing sleeve 15 is in contact with the outer wall of the insertion tube 8, thereby achieving a sealing effect. The cooperation of the second convex ring 14 and the first convex ring 10 can squeeze the inner and outer walls of the sliding sealing sleeve 15, compressing the cavity 19 and squeezing the support column 20. Through the rebound of the support column 20 and the cavity 19, the connection between the sealing sleeve 15 and the insertion tube 8 and the connecting tube 7 is made tighter, achieving a better sealing effect. The second convex ring 14 and the first convex ring 10 can also play an anti-slip role, and indirectly play a secondary anti-dislodgement role for the insertion tube 8. This effectively prevents external gas from entering the pipeline during testing, affecting the measurement accuracy, and also prevents gas leakage, providing better protection for testing personnel. Among them, the main body of the gas parameter measuring instrument 1 can be of model YDC5(A). The structure and working principle of this model are existing technologies and will not be described in detail here.

[0028] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mine-used gas parameter measuring device for a pipeline, characterized by: The instrument includes a gas parameter measuring instrument body (1) and an intrinsically safe pipeline (4). The gas parameter measuring instrument body (1) includes an interface (2). A flexible hose (3) is connected to the port of the interface (2). A valve (5) is fixedly connected to the outside of the intrinsically safe pipeline (4). A plug (6) is fixedly connected to one end of the valve (5). A connecting pipe (7) is fixedly connected to one end of the plug (6). An insertion tube (8) is fixedly connected to one end of the flexible hose (3). A sealing mechanism is provided on the outside of the insertion tube (8). The sealing mechanism includes a first inclined surface (9), a second convex ring (14), a sealing sleeve (15), a through hole (16), and a second inclined surface (18). The first inclined surface (9) is located inside the connecting tube (7). The second convex ring (14) is fixedly connected to the outer wall of the insertion tube (8). The sealing sleeve (15) is slidably fitted on the outer wall of the second convex ring (14). The through hole (16) is opened on the outside of the sealing sleeve (15). The second inclined surface (18) The connecting tube (7) is fixedly connected to the outside of the port of the sealing sleeve (15), and a first protruding ring (10) is fixedly connected inside the connecting tube (7). The sealing sleeve (15) has a cavity (19) inside, and a support column (20) is fixedly connected inside the cavity (19). The sealing sleeve (15) has a hook plate (21) fixedly connected to the outside. The connecting tube (7) has a bend (25) on the outside. The hook plate (21) has an L-shaped structure, and one end of the hook plate (21) is engaged with the bend (25).

2. The mine-used pipeline gas parameter measuring device according to claim 1, characterized in that: A fixing mechanism is provided at the connection between the connecting tube (7) and the insertion tube (8). The fixing mechanism includes a buckle (11), an arc surface (12), and a first slot (13). The buckle (11) is fixedly connected to the inside of the connecting tube (7). The arc surface (12) is located at one end of the buckle (11), and the first slot (13) is located inside the connecting tube (7).

3. The mine-used pipeline gas parameter measuring device according to claim 2, characterized in that: The inner wall of the through hole (16) is in contact with the outer wall of the insertion tube (8), the second protruding ring (14) is equidistantly distributed on the outer wall of the insertion tube (8), the outer wall of the connecting tube (7) is in contact with the inner wall of the insertion tube (8), the buckle (11) is engaged in the inside of the first slot (13), and there are four buckles (11) and four slots (13).

4. The gas parameter measuring device for mine pipelines according to claim 3, characterized in that: The second inclined surface (18) and the first inclined surface (9) are in contact with each other, and the sealing sleeve (15) is slidably inserted into the inside of the connecting tube (7).

5. The gas parameter measuring device for mine pipelines according to claim 1, characterized in that: The cavity (19) is arranged in a ring shape, and the support columns (20) are distributed at equal intervals inside the cavity (19). The two ends of the support columns (20) are fixedly connected to the two sides of the wall of the cavity (19).

6. The gas parameter measuring device for mine pipelines according to claim 1, characterized in that: The gas parameter measuring instrument body (1) is fixedly connected to a top plate (22), the top of the top plate (22) is fixedly connected to a second slot (23), and a cover plate (24) is provided on the top of the top plate (22).

7. A gas parameter measuring device for mining pipelines according to claim 6, characterized in that: A rubber pad is fixedly connected to the bottom of the cover plate (24), and the bottom of the rubber pad is in contact with the port of the interface (2).

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