Wide-area gas monitoring device suitable for extra-long inclined shaft auxiliary tunnel construction

Abstract

The invention provides a wide-area gas monitoring device suitable for extra-long inclined shaft auxiliary tunnel construction, and belongs to the technical field of monitoring alarm device.The wide-area gas monitoring device comprises a fixed track, the fixed track comprises a straight track, and the two ends of the straight track are fixedly connected with annular tracks facilitating steering of a monitoring mechanism; c-shaped guide grooves with outward openings are oppositely formed in the two horizontal sides of the fixed rail, protruding guide rails are arranged on the bottom faces and the top faces of the C-shaped guide grooves correspondingly, driving wheels matched with the guide rails are installed in the C-shaped guide grooves, and a sliding groove used for maintaining stable operation of the monitoring mechanism is formed between the C-shaped guide grooves in the two sides. According to the scheme, the gas monitoring device can circularly move in the tunnel construction environment and conduct wide-area real-time monitoring on gas, meanwhile, the self-cleaning function is achieved, monitoring timeliness and result accuracy are guaranteed, the requirement for manual maintenance is reduced, and long-term stable operation of the monitoring device is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring and alarm devices, and in particular to a wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels. Background Art

[0002] Gas is a mixed gas mainly composed of methane. The density of gas is lighter than air and it easily accumulates in the upper layer of the tunnel. During the tunnel construction process, especially when passing through gas-rich strata, the presence of gas will pose a serious safety hazard. High concentrations of gas may not only cause explosion accidents, but also cause suffocation risks due to lack of oxygen, seriously threatening the lives of construction workers and the safety of engineering facilities. Therefore, it is crucial to implement effective gas monitoring.

[0003] When monitoring gas inside a tunnel, it is usually necessary to deploy several gas monitoring devices in the tunnel to fully understand the gas concentration in the entire construction area and promptly discover potential safety hazards. However, this method is relatively expensive and requires the purchase of a large number of monitoring devices. In addition, the dust in the tunnel construction environment is high, which can easily clog the gas monitoring equipment, resulting in untimely and inaccurate monitoring. This requires regular maintenance and calibration of these devices to ensure their accuracy. When maintenance is not timely, it may put the lives of construction workers at risk. Summary of the invention

[0004] The object of the present invention is to provide a wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels, comprising: A fixed track, wherein the fixed track comprises a straight track, both ends of which are fixedly connected with a circular track for facilitating the turning of the monitoring mechanism, two horizontal sides of the fixed track are oppositely provided with C-shaped guide grooves with openings facing outward, the bottom and top surfaces of the C-shaped guide groove are respectively provided with raised guide rails, a driving wheel matching with the guide rail is installed inside the C-shaped guide groove, and a slide groove for maintaining the stable operation of the monitoring mechanism is provided between the C-shaped guide grooves on both sides; The driving mechanism comprises a driving wheel and a driving device, wherein the driving wheel is rotatably connected to the driving device via a driving shaft, a connecting shaft is fixedly installed on a side of the driving device away from the driving wheel, a supporting column is connected to the end of the connecting shaft, a sliding block matched with a sliding groove is fixedly connected to the top of the supporting column, and a monitoring mechanism is detachably connected to the bottom of the supporting column via a thread; A monitoring mechanism, wherein a vent is provided on the monitoring mechanism, wherein the vent is connected to an annular cavity for a cleaning brush to pass through, wherein a cleaning shaft is installed at the inner axis of the monitoring mechanism, wherein the top of the cleaning shaft is fixedly connected to the cleaning brush via a connecting rod, wherein a positioning rod for positioning the cleaning brush is fixedly installed below the connecting rod, and wherein a positioning track cooperating with the positioning rod is provided below the positioning rod; The vent is also connected to an air duct for gas to enter, the air duct is vertically arranged, a filter is arranged at the air inlet on the top of the air duct, a first channel and a second channel are arranged in sequence below the air inlet of the air duct, the first channel is connected to a cleaning chamber, the second channel is connected to a detection chamber, the bottom end of the cleaning shaft is rotatably connected to the bottom surface of the cleaning chamber through a bearing, a blade for driving the cleaning shaft to rotate is arranged in the cleaning chamber, the blade is fixedly mounted on the cleaning shaft, and an air pump, a detection device and an alarm device are fixedly mounted in the detection chamber.

[0006] As a further improvement, the connection between the annular track and the straight track is smoothly transitioned, and the slide groove of the annular track segment is the same as the track of the annular track and is located on the inner side of the annular track.

[0007] As a further improvement, the connecting shaft is fixedly mounted on the supporting column and is located between the sliding block and the monitoring mechanism.

[0008] As a further improvement, there are four ventilation holes, which are evenly distributed in a circle on the monitoring mechanism. Each ventilation hole is provided with a corresponding air duct and a cleaning brush, and the bottom of each ventilation hole is provided with a slope to facilitate dust discharge.

[0009] As a further improvement, the cleaning brushes are fixedly connected to the cleaning shaft by a connecting rod, and the cleaning brush includes an inclined plate, which is inclined and has an acute angle with the bottom surface of the annular cavity in its movement direction, and bristles for cleaning dust are respectively provided on one side and the bottom side of the inclined plate close to the filter.

[0010] As a further improvement, the first channel is inclined downward in the vertical direction and inclined leftward or rightward in the horizontal direction.

[0011] As a further improvement, a spring is arranged inside the positioning rod, and a rolling ball is arranged on the top of the spring to enable the connecting rod to rotate smoothly.

[0012] As a further improvement, the positioning track is in an annular wave shape, which is highest at the corresponding ventilation opening and is smallest between adjacent ventilation openings.

[0013] As a further improvement, a wind shield is hinged on the top surface of the first channel through a hinge shaft, and the hinge shaft is provided with a torsion spring that keeps the wind shield in a normally open state when there is a lot of dust in the filter. The opening of the wind shield faces the air duct, and the bottom surface of the first channel is provided with a block corresponding to the hinge point and limiting the wind shield to be in a closed state.

[0014] As a further improvement, the air inlet of the air pump is sealedly connected to the air outlet of the second channel, and the air outlet of the air pump is fixedly connected to the monitoring device.

[0015] The beneficial effects of the above technical solution of the present invention are as follows: By combining the design of fixed tracks, driving mechanisms and monitoring mechanisms, this solution can automatically move in tunnel construction environments and conduct wide-area real-time monitoring of gas. It also has a self-cleaning function, ensuring the timeliness of monitoring and the accuracy of results, reducing the need for manual maintenance and ensuring the long-term stable operation of the monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 A schematic diagram of the structure provided by the present invention; Figure 2 for Figure 1 Left view of the fixed track; Figure 3 for Figure 1 The left side view of the middle driving mechanism and monitoring mechanism; Figure 4 for Figure 1 Schematic cross-sectional view of ; Figure 5 A schematic diagram of the three-dimensional structure of the monitoring mechanism provided by the present invention; Figure 6 A three-dimensional partial schematic diagram of the monitoring mechanism provided by the present invention; Figure 7 for Figure 6 A top view of Figure 8 A top view of the cleaning brush provided by the present invention; Fig. 9 A front view of the cleaning brush provided by the present invention; Fig.10 for Figure 6 A magnified view of middle; Fig.11 A schematic diagram of the structure of the positioning rod provided by the present invention; Fig.12 A schematic diagram of the planar structure of the monitoring mechanism provided by the present invention; Fig.13 for Fig.12 Enlarged view of middle B; Fig.14 This is a schematic diagram of the top view of the cleaning chamber provided by the present invention.

[0017] Description of reference numerals: 1. Fixed track; 11. Straight track; 12. Circular track; 13. C-shaped guide groove; 14. Guide rail; 15. Slide groove; 2. Driving mechanism; 21. Driving wheel; 22. Driving shaft; 23. Driving device; 24. Connecting shaft; 25. Support column; 26. Sliding block; 3. Monitoring mechanism; 301. Ventilation port; 302. Inclined surface; 303. Annular cavity; 304. Cleaning shaft; 305. Connecting rod ; 306, cleaning brush; 307, tilting plate; 308, bristles; 309, positioning rod; 310, spring; 311, rolling ball; 312, positioning track; 313, air duct; 314, filter; 315, first channel; 316, cleaning chamber; 317, hinge shaft; 318, wind shield; 319, torsion spring; 320, block; 321, blade; 322, second channel; 323, detection chamber. DETAILED DESCRIPTION

[0018] 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. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In order to solve the problems of multiple gas monitoring equipment in the construction tunnel and dust blockage leading to untimely and inaccurate monitoring, this plan considers designing a wide-range gas monitoring device suitable for tunnels. Considering the length of the construction tunnel and the curves in it, it is decided to use a double-track circular track as a guide tool and fix the track on the top of the tunnel to solve these problems, so as to realize the cyclic movement of the monitoring equipment and implement monitoring.

[0021] However, the construction tunnel is complicated, with many construction equipment and limited tunnel space. The design of the double-track circular track requires that space be reserved in the tunnel for the monitoring equipment to run along the track. Therefore, it is considered to merge the double tracks into a straight track 11, and set circular tracks 12 for turning at both ends of the straight track 11. In this way, it is only necessary to install the circular track 12 in a suitable space, and the space required for the monitoring equipment to run on the straight track 11 is greatly reduced compared to running on the double track. In addition, an automatic cleaning device is set on the monitoring mechanism 3 to reduce the need for manual maintenance and ensure the long-term stable operation of the monitoring device.

[0022] Working principle: When this solution is running, the driving mechanism 2 drives the monitoring mechanism 3 to move along the fixed track 1. The air pump is started, and the air enters the vent 301, and enters the air duct 313 after being filtered by the filter 314. Subsequently, part of the air enters the cleaning chamber 316, and the other part of the air enters the detection chamber 323. When the filter 314 is clean, the wind speed entering the air duct 313 is fast and the air volume is large. At this time, the wind shield 318 is closed under the action of wind force, so that the cleaning chamber 316 cannot enter the air; when the filter 314 is blocked and the air volume decreases, the wind force cannot drive the wind shield 318 to close, and the wind shield 318 is in an open state under the restriction of the torsion spring 319. At this time, the blade 321 rotates under the action of the wind force, thereby driving the cleaning shaft 304 and the cleaning brush 306 to rotate, and the dust accumulated on the filter 314 is removed. The air entering the detection chamber 323 is sent to the monitoring device for detection under the action of the air pump to monitor the gas concentration.

[0023] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0024] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0025] Embodiment 1 of a wide-area gas monitoring device suitable for construction of extra-long inclined shaft auxiliary tunnels provided by the present invention: like Figure 1 As shown, a wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels includes a fixed track 1, a driving mechanism 2 and a monitoring mechanism 3.

[0026] like Figure 1-4 As shown, the fixed track 1 includes a straight rail 11, and both ends of the straight rail 11 are fixedly connected with an annular track 12. The design of the annular track 12 is convenient for the driving mechanism 2 to drive the monitoring mechanism 3 to complete the turning, and the connection between the straight rail 11 and the annular track 12 is smoothly transitioned, which is convenient for the smooth turning of the driving wheel 21; C-shaped guide grooves 13 with openings facing outward are relatively provided on both horizontal sides of the fixed track 1, and the bottom and top surfaces of the C-shaped guide grooves 13 are respectively provided with raised guide rails 14, and a slide groove 15 is provided between the C-shaped guide grooves 13 on both sides, and the slide groove 15 of the annular track 12 section is the same as the trajectory of the annular track 12 and is located on the inner side of the annular track 12; the fixed track 1 can be directly or indirectly installed on the top of the construction tunnel through a mounting frame.

[0027] The driving mechanism 2 includes a driving wheel 21 and a driving device 23. The driving wheel 21 is rotatably connected to the driving device 23 via a driving shaft 22. A connecting shaft 24 is fixedly installed on the side of the driving device 23 away from the driving wheel 21. A supporting column 25 is connected to the end of the connecting shaft 24. A sliding block 26 that cooperates with the slide groove 15 is fixedly connected to the top of the supporting column 25. The bottom end of the supporting column 25 is detachably connected to the monitoring mechanism 3 via a thread.

[0028] In the above design, the driving wheel 21 can be installed in cooperation with the C-shaped guide groove 13, wherein the center of the wheel surface of the driving wheel 21 is provided with a groove along the circumference that cooperates with the guide rail 14. The design of the guide rail 14 is not only used to guide the movement direction of the driving wheel 21, but the guide rails 14 on the top and bottom surfaces can also be used to position the guide wheel to prevent it from shaking during movement. The driving shaft 22 is fixedly installed at the axis of the driving wheel 21, extends through the notch of the C-shaped guide groove 13, and is connected to the driving device 23. The driving device 23 can be a motor or other device. The driving device 23 is used to provide the driving wheel 21 with forward power. The connecting shaft 24 is set to be curved and extends to the bottom of the fixed track 1. It is installed in cooperation with the slide groove 15 through the slider 26 on the support column 25. This design method can further maintain the stable operation of the device, ensure the wide range of monitoring, and ensure the continuity and coverage of monitoring. When the monitoring mechanism 3 needs maintenance, the monitoring mechanism 3 can be directly removed from the support column 25 for inspection.

[0029] like Figure 5-7 As shown, the monitoring mechanism 3 is provided with four vents 301 which are evenly distributed in a circle. The vents 301 are close to the top surface of the monitoring mechanism 3. The vents 301 are used to guide external air into the monitoring mechanism 3. Since the density of gas is lower than that of air, it is easy to gather in the upper layer of the air. Therefore, the vents 301 are set near the top of the monitoring mechanism 3, which helps to monitor the gas concentration more accurately. The evenly distributed vents 301 help to monitor the gas more comprehensively.

[0030] like Figure 5-7 and Fig.12 As shown, each vent 301 is connected to an air duct 313 for gas to enter, the air duct 313 is vertically arranged, and a filter 314 is arranged at the air inlet at the top, the filter 314 is used to filter the incoming air, and can effectively prevent dust and other impurities from entering the detection cavity 323, protect the monitoring equipment from pollution, and improve the accuracy of the monitoring results. Each vent 301 is provided with an inclined surface 302 at the bottom for easy dust discharge, and the inclined surface 302 helps to reduce the accumulation of dust inside the vent 301, ensuring unimpeded air circulation.

[0031] like Figure 6 and 7 As shown, a cleaning shaft 304 is installed at the inner axis of the monitoring mechanism 3, and a cleaning brush 306 is fixedly installed on the top of the cleaning shaft 304 through a connecting rod 305. There are four cleaning brushes 306, and the vent 301 is also connected to an annular cavity 303 for the cleaning brush 306 to pass through. The cleaning shaft 304 is used to drive the cleaning brush 306 to rotate to remove dust on the filter 314, ensure the cleanliness of the filter 314, and thus improve the accuracy of monitoring, and the design of the annular cavity 303 is convenient to ensure that the cleaning brush 306 can pass through the vent 301 smoothly and effectively remove dust on the filter 314.

[0032] like Figure 12-14 As shown, a first channel 315 and a second channel 322 are sequentially provided below the air inlet of the air duct 313. The first channel 315 is inclined downward in the vertical direction and inclined to the left or right in the horizontal direction. The first channel 315 is connected to a cleaning chamber 316. The bottom end of the cleaning shaft 304 is rotatably connected to the bottom surface of the cleaning chamber 316 through a bearing. A blade 321 for driving the cleaning shaft 304 to rotate is provided in the cleaning chamber 316, and the blade 321 is fixedly mounted on the cleaning shaft 304.

[0033] The inclined design of the first channel 315 helps the air to enter the cleaning chamber 316 better and form a vortex in the cleaning chamber 316. The vortex airflow is used to drive the blades 321 to rotate and drive the cleaning shaft 304 to rotate as the power source of the cleaning brush 306. The bearing design effectively reduces friction.

[0034] The second channel 322 is connected to the detection chamber 323, in which an air pump, a detection device and an alarm device are fixedly installed. The air inlet of the air pump is sealed and connected to the air outlet of the second channel 322, and the air outlet of the air pump is fixedly and tightly connected to the detection device. The detection device is electrically connected to the alarm device. The second channel 322 is used to guide air into the detection chamber 323 and into the detection device through the air pump to detect the gas concentration. When the gas concentration exceeds the set standard, the alarm device issues a warning to remind the staff to take emergency measures.

[0035] like Figure 7-9 As shown, the cleaning brush 306 includes an inclined plate 307 that is tilted, and there is an acute angle between the inclined plate 307 and the bottom surface of the annular cavity 303 in its moving direction. The inclined plate 307 is provided with bristles 308 for cleaning dust on one side and the bottom side close to the filter 314.

[0036] The cleaning brush 306 cooperates with the annular cavity 303 corresponding to the vent 301. The acute angle design between the inclined plate 307 and the bottom surface of the annular cavity 303 helps the cleaning brush 306 to better fit the surface of the filter 314, thereby improving the cleaning efficiency. The bristles 308 on the side are used to clean the dust on the filter 314, while the bristles 308 on the bottom side help to clean the dust in the annular cavity 303, and when the cleaning brush 306 passes through the inclined surface 302, the dust is discharged from the gap of the inclined surface 302.

[0037] like Figure 6 , Fig.10 and Fig.11 As shown, a positioning rod 309 for positioning the cleaning brush 306 is fixedly installed below the connecting rod 305, a spring 310 is arranged inside the positioning rod 309, and a rolling ball 311 is arranged on the top of the spring 310 to enable the connecting rod 305 to rotate smoothly; a positioning track 312 cooperating with the positioning rod 309 is arranged below the positioning rod 309, and the positioning track 312 is an annular wave shape, which is highest at the corresponding vent 301 and reaches the minimum between adjacent vents 301.

[0038] The design of the spring 310 and the ball 311 of the positioning rod 309 can absorb vibration and impact, while reducing the friction between the positioning rod 309 and the positioning track 312, which helps to reduce component wear; at the same time, the wavy design of the positioning track 312 can enable the thrust provided by the spring 310 to the ball 311 to drive the ball 311 to slide to the lowest end of the track, thereby positioning the cleaning brush 306 after cleaning is completed, avoiding the cleaning brush 306 from stopping at the vent 301, hindering the airflow from entering the air duct 313, and affecting the monitoring results of the gas concentration.

[0039] like Figure 12-13 As shown, a windshield plate 318 is hingedly connected to the top surface of the first channel 315 through a hinge shaft 317, and a torsion spring 319 is provided on the hinge shaft 317 to keep the windshield plate 318 in a normally open state when there is a lot of dust in the filter 314. The windshield plate 318 opens toward the air duct 313, and a block 320 is provided on the bottom surface of the first channel 315 corresponding to the hinge point and limiting the windshield plate 318 from being in a closed state.

[0040] There is a certain angle between the windshield 318 and the top surface of the first channel 315. When the filter 314 is clean, the wind speed entering the air duct 313 is fast and the air volume is large. At this time, the windshield 318 is closed under the action of wind force, and the setting of the block 320 can position the windshield 318 when it is completely closed to prevent the windshield 318 from opening in the opposite direction. At this time, no air can enter the cleaning chamber 316, and the cleaning brush 306 does not operate. The closed windshield 318 can also transport more gas to the detection chamber 323. When the filter 314 is blocked and the air volume decreases, the wind force cannot drive the windshield 318 to close. The windshield 318 is in an open state under the restriction of the torsion spring 319. At this time, the blade 321 rotates under the action of wind force, thereby driving the cleaning shaft 304 and the cleaning brush 306 to rotate, and the dust accumulated on the filter 314 is removed. This design method helps to automatically adjust the cleaning brush 306 to operate according to the state of the filter 314.

[0041] Embodiment 2 of a wide-area gas monitoring device suitable for construction of extra-long inclined shaft auxiliary tunnels provided by the present invention: The main difference between it and embodiment 1 is that a support plate or a support rail is provided below the driving device 23 to support the driving device 23 to prevent long-term uneven force from causing device failure.

[0042] Embodiment 3 of a wide-area gas monitoring device suitable for construction of extra-long inclined shaft auxiliary tunnels provided by the present invention: The main difference between it and Example 1 is that the partial side wall of the opening side of the C-shaped guide groove 13 of the straight rail section 11 is set to be hinged, and the bottom surface corresponding to the slide groove 15 is also partially set to be hinged. When maintenance is required, the hinge switch is turned on and the drive device 23 can be removed for inspection.

[0043] Although this specification has shown and described a plurality of embodiments of the present invention, it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, modifications and alternatives without departing from the thought and spirit of the present invention. It should be understood that in the process of practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The attached claims are intended to define the scope of protection of the present invention, and therefore cover the modular composition, equivalent or alternatives within the scope of protection of these claims.

Claims

1. A wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels, characterized in that: include: A fixed track (1), the fixed track (1) comprising a straight track (11), both ends of the straight track (11) being fixedly connected to an annular track (12) for facilitating the turning of the monitoring mechanism (3), two horizontal sides of the fixed track (1) being oppositely provided with C-shaped guide grooves (13) opening outward, the bottom and top surfaces of the C-shaped guide groove (13) being respectively provided with raised guide rails (14), a driving wheel (21) cooperating with the guide rail (14) being installed inside the C-shaped guide groove (13), and a slide groove (15) for maintaining the stable operation of the monitoring mechanism (3) being provided between the C-shaped guide grooves (13) on both sides; A driving mechanism (2), the driving mechanism (2) comprising a driving wheel (21) and a driving device (23), the driving wheel (21) being rotationally connected to the driving device (23) via a driving shaft (22), a connecting shaft (24) being fixedly mounted on a side of the driving device (23) away from the driving wheel (21), a supporting column (25) being connected to a distal end of the connecting shaft (24), a sliding block (26) cooperating with a sliding groove (15) being fixedly connected to a top end of the supporting column (25), and a monitoring mechanism (3) being detachably connected to a bottom end of the supporting column (25) via a thread; A monitoring mechanism (3), wherein the monitoring mechanism (3) is provided with a vent (301), the vent (301) being connected to an annular cavity (303) for a cleaning brush (306) to pass through, a cleaning shaft (304) being installed at the inner axis of the monitoring mechanism (3), the top of the cleaning shaft (304) being fixedly connected to the cleaning brush (306) via a connecting rod (305), a positioning rod (309) for positioning the cleaning brush (306) being fixedly installed below the connecting rod (305), and a positioning track (312) cooperating with the positioning rod (309) being provided below the positioning rod (309); The vent (301) is also connected to an air duct (313) for gas to enter. The air duct (313) is arranged vertically. A filter (314) is arranged at the air inlet at the top of the air duct (313). A first channel (315) and a second channel (322) are arranged in sequence below the air inlet of the air duct (313). The first channel (315) is connected to a cleaning chamber (316), and the second channel (322) is connected to a detection chamber (323). The bottom end of the cleaning shaft (304) is rotatably connected to the bottom surface of the cleaning chamber (316) via a bearing. A blade (321) for driving the cleaning shaft (304) to rotate is arranged in the cleaning chamber (316). The blade (321) is fixedly mounted on the cleaning shaft (304). An air pump, a detection device and an alarm device are fixedly mounted in the detection chamber (323).

2. A wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels according to claim 1, characterized in that: The connection between the annular track (12) and the straight track (11) is a smooth transition, and the slide groove (15) of the annular track (12) section has the same track as the annular track (12) and is located on the inner side of the annular track (12).

3. A wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels according to claim 1, characterized in that: The connecting shaft (24) is fixedly mounted on the supporting column (25) and is located between the sliding block (26) and the monitoring mechanism (3).

4. A wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels according to claim 1, characterized in that: The ventilation openings (301) are provided in four numbers and are evenly distributed in a circle on the monitoring mechanism (3); each ventilation opening (301) is provided with a corresponding air duct (313) and a cleaning brush (306); and the bottom of each ventilation opening (301) is provided with an inclined surface (302) for facilitating dust discharge.

5. The wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnel according to claim 1, characterized in that: The cleaning brushes (306) are fixedly connected to the cleaning shaft (304) via a connecting rod (305). The cleaning brushes (306) comprise an inclined plate (307). The inclined plate (307) is arranged to be inclined, and an acute angle is formed between the inclined plate (307) and the bottom surface of the annular cavity (303) in the direction of its movement. Bristles (308) for cleaning dust are respectively provided on one side and the bottom side of the inclined plate (307) close to the filter screen (314).

6. A wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnels according to claim 1, characterized in that: The first channel (315) is arranged to be inclined downward in the vertical direction and to be inclined leftward or rightward in the horizontal direction.

7. The wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnel according to claim 1, characterized in that: A spring (310) is arranged inside the positioning rod (309), and a rolling ball (311) is arranged on the top of the spring (310) so that the connecting rod (305) can rotate smoothly.

8. The wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnel according to claim 1, characterized in that: The positioning track (312) is in the shape of an annular wave, and is highest at the location corresponding to the ventilation opening (301) and is smallest between adjacent ventilation openings (301).

9. The wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnel according to claim 1, characterized in that: A windshield plate (318) is hingedly connected to the top surface of the first channel (315) via a hinge shaft (317); a torsion spring (319) is provided on the hinge shaft (317) to keep the windshield plate (318) in a normally open state when there is a lot of dust in the filter screen (314); the windshield plate (318) opens toward the air duct (313); and a stopper (320) is provided on the bottom surface of the first channel (315) corresponding to the hinge point and limiting the windshield plate (318) from being in a closed state.

10. The wide-area gas monitoring device suitable for the construction of extra-long inclined shaft auxiliary tunnel according to claim 1, characterized in that: The air inlet of the air pump is sealedly connected to the air outlet of the second channel (322), and the air outlet of the air pump is fixedly connected to the monitoring device.

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