Coal mine gas extraction concentration monitoring and early warning device

Abstract

The invention relates to the technical field of gas monitoring, and particularly discloses a coal mine gas extraction concentration monitoring and early warning device which comprises a monitoring mechanism body, one side of the inner bottom wall of each of a first mounting pipe, a shaping pipe and a second mounting pipe is fixedly connected with a positioning track, and the middle of the inner wall of each positioning track is fixedly connected with a magnetic coil; through the arrangement of the first mounting pipe, the shaping pipe, the second mounting pipe, the positioning track and the magnetic coil, the shaping pipe can be synchronously bent along with the road bending condition in the coal mine, so that a monitoring pipeline is established in the coal mine with the bent road, and the gas concentration in the coal mine can be conveniently monitored by the monitoring mechanism through the gas inlet pipe; and the positioning track is made of aluminum alloy, so that when the shaping pipe is bent, the positioning track is synchronously bent, and the monitoring mechanism is driven by the magnetic coil to move in the first mounting pipe, the shaping pipe and the second mounting pipe, so that the effect that the monitoring device is used for laying the monitoring pipeline along the route in the coal mine is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of gas monitoring, and in particular relates to a coal mine gas extraction concentration monitoring and early warning device. Background Art

[0002] Coal mine gas disasters are a major problem in coal mine safety production. As coal mining will continue to expand deep underground, mine pressure will also increase, resulting in an increase in gas outburst at the coal mining face. When the gas concentration reaches a certain level, if it encounters a fire source (such as sparks generated by a coal mining machine cutting large pieces of coal gangue), it is very easy to cause gas explosions and other disasters, seriously threatening the lives and safety of coal miners and causing huge economic losses. Therefore, it is necessary to monitor the gas concentration inside the coal mine through a gas extraction concentration monitoring and early warning device.

[0003] In the Chinese patent with publication number CN114924036B, a gas concentration monitoring and early warning device for coal mine gas extraction is mentioned, which belongs to the field of gas technology. A gas concentration monitoring and early warning device for coal mine gas extraction includes a gas concentration monitoring and early warning device body, and a gas transmission mechanism is provided on one side of the gas concentration monitoring and early warning device body. The gas transmission mechanism includes: an air intake pipe, a plurality of air intake ports are opened at the lower part of the air intake pipe, and a filter is provided in the air intake port; a plurality of support rods, the support rods are rotatably installed under the air intake pipe; an air pump, the air pump is rotatably installed at one end of the air intake pipe; a connecting pipe, one end of the connecting pipe is fixedly installed with the air pump, and the other end is fixedly installed with the gas concentration monitoring and early warning device body; a blocking mechanism, the blocking mechanism is rotatably installed inside the air intake pipe, and the blocking mechanism can keep only one air intake port open at the same time. This device can effectively monitor the gas concentration in the mine tunnel.

[0004] However, the above technical solution arranges a blocking sleeve in the air intake pipe, so that when the motor rotates, the position of the air intake port and the connecting hole can be adjusted to overlap, thereby detecting the air at different positions in the mine tunnel and expanding the detection range of the device. Although this device can facilitate air detection at different positions, it is difficult to move the monitoring device stably at turning positions in the coal mine, which makes it easy to miss air detection inside the coal mine, so staff need to improve it. Summary of the invention

[0005] The purpose of the present invention is to provide a coal mine gas extraction concentration monitoring and early warning device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A coal mine gas extraction concentration monitoring and early warning device, comprising: Monitoring agency body; A connecting pipe is fixedly connected to the middle of the bottom of the monitoring mechanism body, the bottom end of the connecting pipe is fixedly connected to the first mounting pipe, one end of the first mounting pipe is fixedly connected to the shaping pipe, one end of the shaping pipe is fixedly connected to the second mounting pipe, and one side of the surface of the first mounting pipe, the shaping pipe and the second mounting pipe are all fixedly connected to the air intake pipe; One side of the inner bottom wall of the first mounting tube, the shaping tube and the second mounting tube are fixedly connected with a positioning rail, the material of the positioning rail is aluminum alloy, and sliding grooves are opened in the middle of both sides of the positioning rail. The middle part of the inner wall of the positioning rail is fixedly connected with a magnetic coil, and the two sides of the magnetic coil are arranged on one side of the sliding groove.

[0007] Preferably, a monitor is overlapped on one side of the top of the positioning track, a monitoring tube is fixedly connected to one side of the surface of the monitor, and mounting plates are fixedly connected to both sides of the bottom of the monitor.

[0008] Preferably, a plurality of socket frames are fixedly connected to one side of the surface of the mounting plate, a connecting column is slidably connected to the inner wall of the socket frame, a magnet column is fixedly connected to the front end of the connecting column, and one side of the surface of the magnet column is slidably connected to the inner wall of the sliding groove, two extrusion springs are connected to the tail end of the connecting column, and one side of the surface of the extrusion spring is inserted into the inner wall of the socket frame.

[0009] Preferably, one side of the surface of the first mounting tube, the shaping tube and the second mounting tube are all sleeved with a mounting ring, one side of the top of the mounting ring is rotatably connected to a lap ring, the other side of the top of the mounting ring is fixedly connected to a negative magnetic plate, the middle part of the top of the lap ring is fixedly connected to a pull rod, one side of the top of the lap ring is fixedly connected to an assembly box, one side of the inner wall of the assembly box is fixedly connected to an electrical connector, the other side of the inner wall of the assembly box is fixedly connected to an iron core, the iron core and the electrical connector are electrically connected to each other, the bottom of the iron core is lapped on the top of the negative magnetic plate, a control switch is installed on one side of the top of the assembly box, and the control switch and the electrical connector are electrically connected to each other.

[0010] Preferably, a mounting plate is fixedly connected to one side of the top of the mounting ring, fixing bolts are threadedly connected to both sides of the surface of the mounting plate, and a handle is fixedly connected to the front end of the fixing bolt.

[0011] Preferably, a sound alarm is fixedly connected to the middle of the surface of the monitoring mechanism body, a light alarm is fixedly connected to the middle of the top of the monitoring mechanism body, and baffles are fixedly connected to the tops of both sides of the monitoring mechanism body.

[0012] Preferably, a control panel is fixedly connected to one side of the bottom of one of the baffles, and a control box is fixedly connected to one side of the bottom of the other baffle.

[0013] Preferably, a controller is fixedly connected to the bottom of the inner wall of the control box, a battery is fixedly connected to the middle of the inner wall of the control box, a transmitter is fixedly connected to the top of the inner wall of the control box, and the transmitter, battery and controller are electrically connected to each other.

[0014] Preferably, both sides of the tops of the two baffles are fixedly connected with arc frames, one side of the top of the arc frames is fixedly connected with a connecting plate, and the middle of the top of the connecting plate is fixedly connected with a support rod.

[0015] Preferably, a right-angle mounting bracket is fixedly connected to the top end of the support rod, and a mounting bolt is threadedly connected to one side of the surface of the right-angle mounting bracket.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the arrangement of the first mounting tube, the shaping tube, the second mounting tube, the air intake pipe, the positioning rail, the sliding groove and the magnetic coil, the shaping tube can bend synchronously with the curvature of the road inside the coal mine, thereby establishing a monitoring pipeline inside the coal mine where the road is curved. The air intake pipe is convenient for the monitoring mechanism to monitor the gas concentration in the coal mine. The positioning rail is made of aluminum alloy, so that when the shaping tube is bent, the positioning rail is also bent synchronously. The monitoring mechanism is driven by the magnetic coil to move in the first mounting tube, the shaping tube and the second mounting tube, thereby achieving the effect of laying out the monitoring pipeline along the route in the coal mine and facilitating the operation of the staff.

[0017] (2) By setting the positioning track, monitor, monitoring tube, socket frame, connecting column, magnet column and extrusion spring, when in use, the gas concentration of the air in the coal mine is monitored through the monitoring tube on the surface of the monitor, and the external gas concentration is monitored through the air intake pipe on the surface of the first mounting tube, the shaping tube and the second mounting tube. The magnet column is slidably connected to the sliding groove of the positioning track, and the magnetic coil of the positioning track is powered on. The magnet column is driven to move by the magnetic coil, so that the monitor moves in the first mounting tube, the shaping tube and the second mounting tube. When the monitor moves to the shaping tube, the compression spring is compressed by changing different curvatures, so that the magnet column is always inside the sliding groove, thereby facilitating the stable movement of the monitor in the first mounting tube, the shaping tube and the second mounting tube, thereby achieving the effect of monitoring the gas concentration at different positions and facilitating the operation of the staff.

[0018] (3) Through the arrangement of the mounting ring, the lap ring, the negative magnetic plate, the iron core and the fixing bolts, when in use, the pipe is sleeved through the mounting ring and the lap ring, the iron core at the bottom is connected to the power supply through the electrical connector, the iron core is energized to form a positive magnetic plate, so that the positive magnetic plate formed by the iron core is stably connected to the negative magnetic plate, thereby stably lap-jointing the mounting ring and the lap ring, and after the iron core is powered off, it is convenient to disassemble the mounting ring and the lap ring, the staff rotates the handle and stably inserts the fixing bolts into the wall, thereby facilitating the stable installation of the pipe, thereby achieving the effect of convenient and stable installation of the first mounting pipe, the shaping pipe and the second mounting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 A three-dimensional diagram of the positioning track of the present invention; Figure 3 is a three-dimensional diagram of the magnetic coil of the present invention; Figure 4 A three-dimensional diagram of a magnet column of the present invention; Figure 5 is a three-dimensional diagram of the control box of the present invention; Figure 6 A three-dimensional diagram of the mounting ring of the present invention; In the figure: 1. Monitoring mechanism body; 2. Connecting pipe; 3. First mounting pipe; 4. Shaping pipe; 5. Second mounting pipe; 6. Air intake pipe; 7. Positioning track; 8. Sliding groove; 9. Magnetic coil; 10. Monitor; 11. Monitoring pipe; 12. Mounting plate; 13. Socket frame; 14. Connecting column; 15. Magnetic column; 16. Extrusion spring; 17. Mounting ring; 18. Overlap ring; 19. Negative magnetic plate; 20. Pull rod; 2 1. Assembly box; 22. Electrical connection; 23. Iron core; 24. Control switch; 25. Additional plate; 26. Fixing bolts; 27. Handle; 28. Sound alarm; 29. ​​Light alarm; 30. Baffle; 31. Control panel; 32. Control box; 33. Controller; 34. Battery; 35. Transmitter; 36. Arc frame; 37. Connecting plate; 38. Support rod; 39. Right-angle mounting frame; 40. Mounting bolts. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1: See also Figures 1 to 6As shown, a coal mine gas extraction concentration monitoring and early warning device comprises: Monitoring agency body 1; A connecting pipe 2 is fixedly connected to the middle of the bottom of the monitoring mechanism body 1, a first mounting pipe 3 is fixedly connected to the bottom end of the connecting pipe 2, a shaping pipe 4 is fixedly connected to one end of the first mounting pipe 3, a second mounting pipe 5 is fixedly connected to one end of the shaping pipe 4, and an air inlet pipe 6 is fixedly connected to one side of the surface of the first mounting pipe 3, the shaping pipe 4 and the second mounting pipe 5; One side of the inner bottom wall of the first mounting tube 3, the shaping tube 4 and the second mounting tube 5 are fixedly connected with a positioning rail 7, the material of the positioning rail 7 is aluminum alloy, and sliding grooves 8 are opened in the middle of both sides of the positioning rail 7, and the middle of the inner wall of the positioning rail 7 is fixedly connected with a magnetic coil 9, and the two sides of the magnetic coil 9 are arranged on one side of the sliding groove 8.

[0022] When in use, a first mounting tube 3 is arranged at the bottom of the monitoring mechanism body 1 through the connecting tube 2, and a shaping tube 4 is arranged at one end of the first mounting tube 3. The shaping tube 4 can bend synchronously with the bending of the road inside the coal mine, and a second mounting tube 5 is arranged at one end of the shaping tube 4, thereby establishing a monitoring pipeline inside the coal mine where the road is curved, and a plurality of air intake pipes 6 are arranged on the surfaces of the first mounting tube 3, the shaping tube 4 and the second mounting tube 5. The air intake pipes 6 facilitate the monitoring mechanism to monitor the gas concentration in the coal mine, and positioning rails 7 are arranged on the inner walls of the first mounting tube 3, the shaping tube 4 and the second mounting tube 5. The material of the positioning rail 7 is aluminum alloy, so that when the shaping tube 4 is bent, the positioning rail 7 is bent synchronously, and sliding grooves 8 are arranged on both sides of the positioning rail 7, and a magnetic coil 9 is arranged in the middle of the inner wall of the positioning rail 7, and the monitoring mechanism is driven to move in the first mounting tube 3, the shaping tube 4 and the second mounting tube 5 through the magnetic coil 9.

[0023] Embodiment 2: See also Figures 1 to 6 As shown, a monitor 10 is overlapped on one side of the top of the positioning rail 7, a monitoring tube 11 is fixedly connected to one side of the surface of the monitor 10, mounting plates 12 are fixedly connected to both sides of the bottom of the monitor 10, a plurality of socket frames 13 are fixedly connected to one side of the surface of the mounting plate 12, a connecting column 14 is slidably connected to the inner wall of the socket frame 13, a magnet column 15 is fixedly connected to the front end of the connecting column 14, and one side of the surface of the magnet column 15 is slidably connected to the inner wall of the sliding groove 8, two extrusion springs 16 are connected to the tail end of the connecting column 14, and one side of the surface of the extrusion spring 16 is inserted into the inner wall of the socket frame 13.

[0024] When in use, a monitor 10 is overlapped on the top of the positioning track 7, and the gas concentration of the air in the coal mine is monitored through the monitoring tube 11 on the surface of the monitor 10, and the external gas concentration is monitored through the air intake pipe 6 on the surface of the first mounting tube 3, the shaping tube 4 and the second mounting tube 5, and mounting plates 12 are arranged on both sides of the bottom of the monitor 10, and a connecting column 14 is arranged on one side of the mounting plate 12 through a sleeve frame 13, and a magnet column 15 is arranged at the front end of the connecting column 14, and the magnet column 15 is slidably connected to the sliding groove 8 of the positioning track 7, and the magnet column 15 is connected to the sliding groove 8 of the positioning track 7. The magnetic coil 9 of the positioning track 7 is powered on, and the magnetic coil 9 drives the magnet column 15 to move, so that the monitor 10 moves in the first mounting tube 3, the shaping tube 4 and the second mounting tube 5. When the monitor 10 moves into the shaping tube 4, a compression spring 16 is provided at the junction of the sleeve frame 13 and the connecting column 14. The compression spring 16 is compressed by changing the curvature to make the magnet column 15 always in the sliding groove 8, thereby facilitating the stable movement of the monitor 10 in the first mounting tube 3, the shaping tube 4 and the second mounting tube 5.

[0025] Embodiment three: See also Figures 1 to 6 As shown, one side of the surface of the first mounting tube 3, the shaping tube 4 and the second mounting tube 5 are all sleeved with a mounting ring 17, one side of the top of the mounting ring 17 is rotatably connected with a lap ring 18, the other side of the top of the mounting ring 17 is fixedly connected with a negative magnetic attraction plate 19, the middle part of the top of the lap ring 18 is fixedly connected with a pull rod 20, one side of the top of the lap ring 18 is fixedly connected with an assembly box 21, one side of the inner wall of the assembly box 21 is fixedly connected with an electrical connector 22, the other side of the inner wall of the assembly box 21 is fixedly connected with an iron core 23, and the iron core 23 and the electrical connector 22 are electrically connected to each other, the bottom of the iron core 23 is lapped on the top of the negative magnetic attraction plate 19, a control switch 24 is installed on one side of the top of the assembly box 21, and the control switch 24 and the electrical connector 22 are electrically connected to each other, one side of the top of the mounting ring 17 is fixedly connected with an additional plate 25, both sides of the surface of the additional plate 25 are threadedly connected with fixing bolts 26, and the front end of the fixing bolts 26 is fixedly connected with a handle 27.

[0026] When in use, a plurality of mounting rings 17 are overlapped on the surfaces of the first mounting tube 3, the shaping tube 4, and the second mounting tube 5. A lap ring 18 is arranged on the top of the mounting ring 17 by rotating the rotating shaft. The pipe is sleeved by the mounting ring 17 and the lap ring 18. A connector 22 is arranged on the top of the lap ring 18 through an assembly box 21. The iron core 23 at the bottom is connected to the power supply through the connector 22. The iron core 23 is energized to form a positive magnetic attraction plate, and a negative magnetic attraction plate 19 is arranged on the top of the mounting ring 17, so that the iron core 23 The formed positive magnetic attraction plate is stably connected to the negative magnetic attraction plate 19, thereby stably overlapping the mounting ring 17 and the lap ring 18, and after the iron core 23 is powered off, it is convenient to disassemble the mounting ring 17 and the lap ring 18, and an additional plate 25 is provided on the top of the mounting ring 17, and both sides of the top of the additional plate 25 are threadedly connected with fixing bolts 26, and a handle 27 is provided at one end of the fixing bolt 26. The staff rotates the handle 27 to stably insert the fixing bolt 26 into the wall, thereby facilitating the stable installation of the pipeline.

[0027] Embodiment 4: See also Figures 1 to 6 As shown, a sound alarm 28 is fixedly connected to the middle of the surface of the monitoring mechanism body 1, a light alarm 29 is fixedly connected to the middle of the top of the monitoring mechanism body 1, baffles 30 are fixedly connected to the top of both sides of the monitoring mechanism body 1, one side of the bottom of one baffle 30 is fixedly connected to a control panel 31, one side of the bottom of the other baffle 30 is fixedly connected to a control box 32, a controller 33 is fixedly connected to the bottom of the inner wall of the control box 32, a battery 34 is fixedly connected to the middle of the inner wall of the control box 32, a transmitter 35 is fixedly connected to the top of the inner wall of the control box 32, and the transmitter 35, the battery 34 and the controller 33 are electrically connected to each other, arc frames 36 are fixedly connected to both sides of the top of the two baffles 30, a connecting plate 37 is fixedly connected to one side of the top of the connecting plate 37, a support rod 38 is fixedly connected to the middle of the top of the connecting plate 37, a right-angle mounting frame 39 is fixedly connected to the top of the support rod 38, and a mounting bolt 40 is threadedly connected to one side of the surface of the right-angle mounting frame 39.

[0028] When in use, the monitoring mechanism body 1 is the core part of the entire monitoring system, responsible for monitoring a specific environment or condition, and is used to control the monitor 10 to detect the gas concentration in the coal mine. When the monitoring mechanism body 1 detects an abnormal situation, the sound alarm 28 will sound a warning, and the light alarm 29 will also start when an abnormality is detected, warning people by flashing lights, especially in a noisy environment or for people with hearing loss. Light warnings are particularly important. The baffle 30 is used to protect the control panel 31 and the control box 32 from collision. The control panel 31 allows the user to interact with the monitoring system, and the user can set the control panel 31. Monitor parameters, view status information or manually trigger the alarm. The control box 32 is the electronic control center of the monitoring system. The controller 33 is a key component in the control box 32 and is responsible for logical judgment and decision-making. According to preset rules and algorithms, it analyzes the data from the monitoring mechanism body 1 and decides whether to trigger the alarm. The battery 34 provides power for the entire monitoring system. In the event of a main power failure or power outage, the battery 34 can ensure that the monitoring system continues to work. The transmitter 35 is used to send monitoring data from the monitoring mechanism body 1 to a remote location or a central control room, allowing remote monitoring and data analysis, thereby improving the flexibility and response speed of the system.

[0029] Embodiment five: See also Figures 1 to 6 As shown, the device is applied in coal mines to monitor gas concentration in real time to ensure safe production in coal mines. When the gas concentration exceeds the standard at a certain place in the coal mine, the device will issue an early warning in time to avoid the occurrence of gas explosions and other disasters. The device has a compact structure and is easy to operate, and the staff can easily install and maintain it.

[0030] The shaping tube 4 can bend synchronously with the curvature of the road inside the coal mine, thereby establishing a monitoring pipeline inside the coal mine with a curved road. The positioning track 7 is made of aluminum alloy, so that when the shaping tube 4 is bent, the positioning track 7 is bent synchronously, and the external gas concentration is monitored through the air intake pipe 6 on the surface of the first mounting tube 3, the shaping tube 4 and the second mounting tube 5. The magnet column 15 is slidably connected to the sliding groove 8 of the positioning track 7, and the magnetic coil 9 of the positioning track 7 is powered on. The magnet column 15 is driven to move by the magnetic coil 9, so that the monitor 10 moves in the first mounting tube 3, the shaping tube 4 and the second mounting tube 5. When the monitor 10 moves into the shaping tube 4, the compression spring 16 is changed by different curvatures, so that the magnet column 15 is always in the sliding groove 8, thereby facilitating the stable movement of the monitor 10 in the first mounting tube 3, the shaping tube 4 and the second mounting tube 5.

[0031] Working principle: When in use, the shaping tube 4 can bend synchronously with the curvature of the road inside the coal mine, thereby establishing a monitoring pipeline inside the coal mine where the road is curved, and the air intake pipe 6 is used to facilitate the monitoring mechanism to monitor the gas concentration in the coal mine. The positioning track 7 is made of aluminum alloy, so that when the shaping tube 4 is bent, the positioning track 7 is bent synchronously, and the monitoring mechanism is driven by the magnetic coil 9 to move in the first mounting tube 3, the shaping tube 4 and the second mounting tube 5. The gas concentration of the air in the coal mine is monitored through the monitoring tube 11 on the surface of the monitor 10, and the external gas concentration is monitored through the air intake pipe 6 on the surfaces of the first mounting tube 3, the shaping tube 4 and the second mounting tube 5. The magnet column 15 is slidably connected to the sliding groove 8 of the positioning track 7, and the magnetic coil 9 of the positioning track 7 is powered on. The magnet column 15 is driven to move through the magnetic coil 9, so that the monitor 10 The first mounting tube 3, the shaping tube 4 and the second mounting tube 5 move, and when the monitor 10 moves into the shaping tube 4, the compression spring 16 is changed by different curvatures, so that the magnet column 15 is always in the sliding groove 8, thereby facilitating the stable movement of the monitor 10 in the first mounting tube 3, the shaping tube 4 and the second mounting tube 5, and the pipeline is sleeved by the mounting ring 17 and the lap ring 18, and the iron core 23 at the bottom is connected to the power supply through the connector 22. The iron core 23 is energized to form a positive magnetic attraction plate, so that the positive magnetic attraction plate formed by the iron core 23 is stably connected to the negative magnetic attraction plate 19, thereby stably lapping the mounting ring 17 and the lap ring 18, and after the iron core 23 is powered off, it is convenient to disassemble the mounting ring 17 and the lap ring 18, and the staff rotates the handle 27 to stably insert the fixing bolt 26 into the wall, thereby facilitating the stable installation of the pipeline.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine gas extraction concentration monitoring and early warning device, characterized in that: include: Monitoring agency body (1); A connecting tube (2) is fixedly connected to the middle of the bottom of the monitoring mechanism body (1); a first mounting tube (3) is fixedly connected to the bottom end of the connecting tube (2); one end of the first mounting tube (3) is fixedly connected to a shaping tube (4); one end of the shaping tube (4) is fixedly connected to a second mounting tube (5); and one side of the surfaces of the first mounting tube (3), the shaping tube (4) and the second mounting tube (5) are all fixedly connected to an air intake pipe (6); One side of the inner bottom wall of the first mounting tube (3), the shaping tube (4) and the second mounting tube (5) is fixedly connected to a positioning rail (7), the positioning rail (7) is made of aluminum alloy, and a sliding groove (8) is provided in the middle of both sides of the positioning rail (7), and a magnetic coil (9) is fixedly connected to the middle of the inner wall of the positioning rail (7), and both sides of the magnetic coil (9) are arranged on one side of the sliding groove (8).

2. A coal mine gas extraction concentration monitoring and early warning device according to claim 1, characterized in that: A monitor (10) is overlapped on one side of the top of the positioning track (7), a monitoring tube (11) is fixedly connected to one side of the surface of the monitor (10), and mounting plates (12) are fixedly connected to both sides of the bottom of the monitor (10).

3. A coal mine gas extraction concentration monitoring and early warning device according to claim 2, characterized in that: A plurality of sleeve frames (13) are fixedly connected to one side of the surface of the mounting plate (12); a connecting column (14) is slidably connected to the inner wall of the sleeve frame (13); a magnet column (15) is fixedly connected to the front end of the connecting column (14); and one side of the surface of the magnet column (15) is slidably connected to the inner wall of the sliding groove (8); and two extrusion springs (16) are connected to the rear end of the connecting column (14); and one side of the surface of the extrusion spring (16) is plugged into the inner wall of the sleeve frame (13).

4. A coal mine gas extraction concentration monitoring and early warning device according to claim 1, characterized in that: One side of the surface of the first mounting tube (3), the shaping tube (4) and the second mounting tube (5) is sleeved with a mounting ring (17); one side of the top of the mounting ring (17) is rotatably connected to a lap ring (18); the other side of the top of the mounting ring (17) is fixedly connected to a negative pole magnetic attraction plate (19); the middle of the top of the lap ring (18) is fixedly connected to a pull rod (20); one side of the top of the lap ring (18) is fixedly connected to an assembly box (21); one side of the inner wall of the assembly box (21) is fixedly connected to an electrical connector (22); the other side of the inner wall of the assembly box (21) is fixedly connected to an iron core (23); the iron core (23) and the electrical connector (22) are electrically connected to each other; the bottom of the iron core (23) is lapped on the top of the negative pole magnetic attraction plate (19); a control switch (24) is installed on one side of the top of the assembly box (21); and the control switch (24) and the electrical connector (22) are electrically connected to each other.

5. A coal mine gas extraction concentration monitoring and early warning device according to claim 4, characterized in that: A mounting plate (25) is fixedly connected to one side of the top of the mounting ring (17), fixing bolts (26) are threadedly connected to both sides of the surface of the mounting plate (25), and a handle (27) is fixedly connected to the front end of the fixing bolt (26).

6. A coal mine gas extraction concentration monitoring and early warning device according to claim 1, characterized in that: A sound alarm (28) is fixedly connected to the middle of the surface of the monitoring mechanism body (1), a light alarm (29) is fixedly connected to the middle of the top of the monitoring mechanism body (1), and baffles (30) are fixedly connected to the tops of both sides of the monitoring mechanism body (1).

7. A coal mine gas extraction concentration monitoring and early warning device according to claim 6, characterized in that: A control panel (31) is fixedly connected to one side of the bottom of one of the baffles (30), and a control box (32) is fixedly connected to one side of the bottom of the other baffle (30).

8. A coal mine gas extraction concentration monitoring and early warning device according to claim 7, characterized in that: A controller (33) is fixedly connected to the bottom of the inner wall of the control box (32), a storage battery (34) is fixedly connected to the middle of the inner wall of the control box (32), and a transmitter (35) is fixedly connected to the top of the inner wall of the control box (32), and the transmitter (35), the storage battery (34) and the controller (33) are electrically connected to each other.

9. A coal mine gas extraction concentration monitoring and early warning device according to claim 6, characterized in that: Both sides of the top of the two baffles (30) are fixedly connected to an arc frame (36), one side of the top of the arc frame (36) is fixedly connected to a connecting plate (37), and the middle of the top of the connecting plate (37) is fixedly connected to a support rod (38).

10. A coal mine gas extraction concentration monitoring and early warning device according to claim 9, characterized in that: A right-angle mounting bracket (39) is fixedly connected to the top end of the support rod (38), and a mounting bolt (40) is threadedly connected to one side of the surface of the right-angle mounting bracket (39).

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