Monitoring device for tunnel construction and operation method thereof

Abstract

The invention belongs to the field of tunnel construction, and particularly relates to a monitoring device for tunnel construction and an operation method thereof.The monitoring device comprises a box body, a detection cavity is formed in the box body, a water storage cavity is formed in the position, located below the detection cavity, in the box body, and air inlets are formed in the two sides of the box body; according to the monitoring device for tunnel construction and the operation method of the monitoring device, the rotating first top block is matched with the tension spring, so that the spray head continuously swings, a fan-shaped water curtain is formed below the spray head, the settling effect on dust in air is better, and dust slurry adhered to the surface of the spray head can be shaken off along with vibration of the spray head; when the water curtain sprayed by the spray head swings to the convex block, the water curtain impacts a plurality of baffle blocks to form rebound, so that two water curtains are formed, and meanwhile, water falling from the convex block drips along the tail end of the inclined surface at the top of the convex block to form a third water curtain; and the air covering effect is further improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of tunnel construction, in particular to a monitoring device for tunnel construction and an operating method thereof. BACKGROUND

[0002] Tunnel is a buried engineering building in stratum, which is a form of human utilization of underground space. Tunnel can be divided into traffic tunnel, hydraulic tunnel, municipal tunnel and mine tunnel. The structure of tunnel includes main building and auxiliary equipment. The main building is composed of tunnel body and tunnel portal. The auxiliary equipment includes car avoidance hole, fire fighting facilities, emergency communication and drainage facilities. Long and large tunnels have special ventilation and lighting equipment. At present, in the process of tunnel construction, dangerous gases such as gas, carbon monoxide and nitrogen dioxide are prone to occur in the tunnel. It is necessary to collect and detect the air in the tunnel to determine whether the tunnel meets the construction requirements.

[0003] The existing technology often pre-sprays dust reduction when detecting the air in the tunnel, reduces the dust content in the air and improves the accuracy of air detection. However, while the spray head sprays dust settlement, part of the dust forms mud after contacting with the spray head. After drying, the mud coagulates into blocks and gradually accumulates at the nozzle of the spray head, blocking part of the nozzle. After the block dust blocks, it is easy to affect the spraying path of the spray head, resulting in uneven water curtain, which is easy for dust to pass through. Moreover, the settled dust forms mud. The existing technology is not convenient for collecting and processing the settled mud. When the mud dries, it will also form dust pollution to the air. In addition, the air entering the monitoring equipment will pass through it quickly. In most cases, the gas detector is difficult to detect the same gas for a long time, which affects the accuracy of air detection.

[0004] Therefore, the present application provides a monitoring device for tunnel construction and an operating method thereof. SUMMARY

[0005] In order to make up for the shortcomings of the prior art, solve the problem that while the spray head sprays dust settlement, part of the dust forms mud after contacting with the spray head, after drying, the mud coagulates into blocks and gradually accumulates at the nozzle of the spray head, blocking part of the nozzle, after the block dust blocks, it is easy to affect the spraying path of the spray head, resulting in uneven water curtain, which is easy for dust to pass through, and the settled dust forms mud, the existing technology is not convenient for collecting and processing the settled mud, when the mud dries, it will also form dust pollution to the air, in addition, the air entering the monitoring equipment will pass through it quickly, in most cases, the gas detector is difficult to detect the same gas for a long time, which affects the accuracy of air detection, the present application provides a monitoring device for tunnel construction and an operating method thereof.

[0006] The technical scheme adopted by the present application to solve its technical problems is: a monitoring device for tunnel construction, comprising a box, a detection cavity is formed in the inside of the box, a water storage cavity is formed in the inside of the box below the detection cavity, air inlets are formed in the two sides of the box, the two air inlets are communicated with the detection cavity, an air extractor is fixedly connected to the top of the box, an air extraction pipeline is connected to the output end of the air extractor, one end of the air extraction pipeline extends into the inside of the detection cavity, a gas detector is arranged on the inner wall of the detection cavity, and further comprising: a spraying assembly for spraying air in the air inlet detection cavity to reduce dust; a vibration assembly for cleaning mud on the spray head; a filtering assembly for purifying water after dust reduction; a guiding assembly for guiding air in the air inlet detection cavity; a rechecking assembly for rechecking the detected air.

[0007] Preferably, the spraying assembly comprises two first rotating shafts, the two first rotating shafts are respectively rotationally connected to the inner walls of the air inlets, a water storage groove is formed in the bottom of the inner wall of the water storage cavity, the outer walls of the two first rotating shafts are fixedly connected with spray heads, a water pump is fixedly connected to the outer wall of the box, a water pumping pipeline is connected to the output end of the water pump, one end of the water pumping pipeline extends into the inside of the water storage groove, the other end of the water pumping pipeline is fixedly connected with two hoses, and the two hoses are respectively fixedly connected with the two spray heads.

[0008] Preferably, the vibration assembly comprises two first guide plates, the two first guide plates are symmetrically fixedly installed on the inner wall of the detection cavity, the first guide plates are arranged in an arc shape, the outer wall of the box is symmetrically fixedly connected with two motors, the output end of the motor extends into the inside of the detection cavity and is fixedly connected with a second rotating shaft, the outer wall of the second rotating shaft is fixedly connected with a first top block, the outer wall of the spray head is fixedly connected with a first convex plate, the first top block is used in cooperation with the first convex plate, and the spray head is fixedly connected with the first guide plate through a tension spring.

[0009] Preferably, the outer wall of the box is symmetrically provided with two feed inlets, the two feed inlets are communicated with the water storage cavity, the inner wall of the feed inlet is fixedly connected with a second guide plate, the second guide plate is arranged in an arc shape, the top of the second guide plate is symmetrically fixedly connected with two second side plates, the inner wall of the air inlet is fixedly connected with a first guide plate, the first guide plate is arranged in an arc shape, the top of the first guide plate is symmetrically fixedly connected with two first side plates, one side of the second guide plate close to the spray head is fixedly connected with a convex block, the top of the convex block is arranged in an inclined surface, a plurality of stop blocks are fixedly connected on the inclined surface of the top of the convex block in equal distance, and the top of the stop block is arranged in an arc shape.

[0010] Preferably, the filter assembly comprises two groups of sliding shafts, the two groups of sliding shafts are symmetrically and fixedly installed on the inner wall of the box body, the outer wall of the two groups of sliding shafts is slidably connected with sliding blocks, the two groups of sliding blocks are fixedly connected with a filter plate, the top of the filter plate is provided with symmetrical inclined surfaces, the outer wall of the sliding shaft is sleeved with a spring, the top of the spring is fixedly connected with the box body, the bottom of the spring is fixedly connected with the sliding block, the bottom of the inner wall of the water storage cavity is symmetrically provided with two sludge grooves with the water storage groove as the center, the two sides of the filter plate extend to above the two sludge grooves respectively, and the bottom of the second flow guide plate extends to the uppermost side of the inclined surface at the top of the filter plate.

[0011] Preferably, the inner wall of the water storage cavity and below the filter plate is symmetrically and rotatably connected with two third rotating shafts, the outer wall of the two third rotating shafts is fixedly connected with second top blocks, the bottom of the filter plate is symmetrically and fixedly connected with two second convex plates, the second top blocks are used in cooperation with the second convex plates, one end of the third rotating shaft penetrates through the box body and is fixedly connected with a second synchronous wheel, one end of the second rotating shaft penetrates through the box body and is fixedly connected with a first synchronous wheel, and the first synchronous wheel and the second synchronous wheel are drivingly connected through a synchronous belt.

[0012] Preferably, the guide assembly comprises two second guide plates, the two second guide plates are fixedly installed at the bottom of the two first guide plates respectively, the two second guide plates are both provided in an arc shape, and the gas detector is arranged between the two second guide plates.

[0013] Preferably, the rechecking assembly comprises two electric telescopic rods, the two electric telescopic rods are symmetrically installed on the inner wall of the box body, the top of the first guide plate is sequentially and fixedly provided with a first baffle, a second baffle and a third baffle from bottom to top, the first baffle, the second baffle and the third baffle are all installed in an inclined manner, the inner wall of the second baffle is provided with a first check valve, the first check valve is open to the first baffle, a second check valve is arranged between the first baffle and the second baffle, the second check valve is open to the gas detector, a piston plate is slidably connected between the first baffle and the second baffle, the piston plate is below the second check valve, the output end of the electric telescopic rod is fixedly connected with a piston rod, and one end of the piston rod penetrates through the first guide plate and is fixedly connected with the piston plate.

[0014] Preferably, the top of the third baffle is fixedly connected with an extension plate, the extension plate is installed vertically, the top of the second baffle is fixedly connected with a third guide plate, the third guide plate is provided in an arc shape and its bottom extends to below the first baffle.

[0015] An operation method of the monitoring device for tunnel construction, which is suitable for the above-mentioned monitoring device for tunnel construction, and the operation method comprises the following steps: S1: install the box in the tunnel, start the air extractor to draw the air in the tunnel into the detection cavity along the air inlet, and detect it using the gas detector; S2: start the nozzle to spray the air entering the air inlet, and start the motor to control the nozzle to swing left and right; S3: start the electric telescopic rod to control the piston plate to move up and down, so that the air after detection flows to the gas detector again for re-detection.

[0016] The beneficial effects of the present application are as follows: 1. The monitoring device for tunnel construction and the operation method thereof, by rotating the first top block and cooperating with the tension spring, the nozzle continuously swings, a fan-shaped water curtain is formed below the nozzle, the dust settlement effect in the air is better, and with the vibration of the nozzle, the dust and mud adhered to the surface of the nozzle can be shaken off, avoiding the dry solidification of the dust and mud on the nozzle to cause the loss of the water curtain.

[0017] 2. The monitoring device for tunnel construction and the operation method thereof, when the water curtain sprayed by the nozzle swings to the protruding block, it rebounds after impacting on the plurality of blocking blocks, so that the water curtain forms two channels, and the water falling from the protruding block drips along the end of the inclined surface on the top of the protruding block, forming a third water curtain, further improving the coverage effect on the air.

[0018] 3. The monitoring device for tunnel construction and the operation method thereof, by the guidance of the arc surfaces on the bottoms of the two second guide plates, the air is concentrated and flows to the gas detector, thereby avoiding the dispersion of the air in the detection cavity and missing the detection, and improving the accuracy of the tunnel air detection.

[0019] 4. The monitoring device for tunnel construction and the operation method thereof, by the electric telescopic rod controlling the piston plate to move up and down, when the piston plate moves downward, the air flowing upward after once detection is drawn back, when the piston plate moves upward, the drawn back air flows downward along the guide of the concave surface in the third guide plate, when the air passes through the bottom of the third guide plate, under the action of the air extractor, the air flows upward again, the air after once inspection is impacted on the gas detector again through the guide of the convex surface outside the third guide plate, thereby re-detecting the detected air, avoiding the missed detection, and improving the detection accuracy of the tunnel air.

[0020] 5. The monitoring device for tunnel construction and the operation method thereof, by the blocking of the first and second guide plates, the mud shaken off from the nozzle is prevented from entering the detection cavity, and the mud is prevented from falling into the tunnel again, under the guidance of the first guide plate, the shaken off mud and water fall on the second guide plate, under the guidance of the second guide plate, the mud and water slide to the water storage cavity together for collection and treatment. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a front view of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is an exploded view of the first guide plate and the second guide plate of the present invention used in conjunction; Figure 4 This is a cross-sectional view of the present invention; Figure 5 This is a perspective view of the first and second guide plates of the present invention used together; Figure 6 This is a cross-sectional view of the second guide plate and the third guide plate of the present invention used together; Figure 7 This is a perspective view of the second guide plate and the protrusion used in conjunction with the present invention; Figure 8 This is the present invention. Figure 4 Enlarged view of point A in the middle; Figure 9 This is the present invention. Figure 5 Enlarged view of point B in the middle.

[0023] In the diagram: 1. Housing; 2. Detection chamber; 3. Water storage chamber; 4. Air inlet; 5. Feed inlet; 6. Exhaust fan; 7. Exhaust duct; 8. First rotating shaft; 9. Nozzle; 10. Water pump; 11. Water pumping duct; 12. Hose; 13. First protruding plate; 14. Motor; 15. Second rotating shaft; 16. First top block; 17. First guide plate; 18. Tension spring; 19. First guide plate; 20. First side plate; 21. Second guide plate; 22. Second side plate; 23. Protrusion; 24. Stop block; 25. Sliding shaft; 26. 27. Spring; 28. Slider; 29. ​​Filter plate; 30. Water storage tank; 31. Sludge tank; 32. Third rotating shaft; 33. Second top block; 34. Second convex plate; 35. First synchronous pulley; 36. Synchronous belt; 37. Second synchronous pulley; 38. Gas detector; 39. Second guide plate; 40. First partition; 41. Second partition; 42. Third partition; 43. Extension plate; 44. First one-way valve; 45. Piston rod; 46. Piston plate; 47. Second one-way valve; 48. Third guide plate; 49. Electric telescopic rod. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] like Figures 1 to 9As shown, the present application provides a technical scheme, a monitoring device for tunnel construction, which comprises a box body 1, a detection cavity 2 is opened in the inside of the box body 1, a water storage cavity 3 is opened in the inside of the box body 1 and below the detection cavity 2, air inlets 4 are opened on both sides of the box body 1, the two air inlets 4 are communicated with the detection cavity 2, an air extractor 6 is fixedly connected to the top of the box body 1, an air extraction pipeline 7 is connected to the output end of the air extractor 6, one end of the air extraction pipeline 7 extends to the inside of the detection cavity 2, a gas detector 37 is arranged on the inner wall of the detection cavity 2, and further comprises: a spraying assembly for spraying and dust setting of air in the air inlet detection cavity 2; a vibration assembly for cleaning mud on the spray head 9; a filtering assembly for purifying dust-set water; a guiding assembly for guiding air in the air inlet detection cavity 2; a rechecking assembly for rechecking the detected air; the spraying assembly comprises two first rotating shafts 8, the two first rotating shafts 8 are respectively rotationally connected to the inner wall of the air inlet 4, a water storage groove 29 is opened in the bottom of the inner wall of the water storage cavity 3, the outer wall of the two first rotating shafts 8 is fixedly connected with the spray head 9, a water pump 10 is fixedly connected to the outer wall of the box body 1, a water extraction pipeline 11 is connected to the output end of the water pump 10, one end of the water extraction pipeline 11 extends to the inside of the water storage groove 29, the other end of the water extraction pipeline 11 is fixedly connected with two hoses 12, and the two hoses 12 are respectively fixedly connected with the two spray heads 9; the vibration assembly comprises two first guide plates 17, the two first guide plates 17 are symmetrically fixedly installed on the inner wall of the detection cavity 2, the first guide plate 17 is arranged in an arc shape, two motors 14 are symmetrically fixedly connected to the outer wall of the box body 1, the output end of the motor 14 extends to the inside of the detection cavity 2 and is fixedly connected with a second rotating shaft 15, the outer wall of the second rotating shaft 15 is fixedly connected with a first top block 16, the outer wall of the spray head 9 is fixedly connected with a first convex plate 13, the first top block 16 is used in cooperation with the first convex plate 13, and a tension spring 18 is fixedly connected between the spray head 9 and the first guide plate 17; two feed inlets 5 are symmetrically opened in the outer wall of the box body 1, the two feed inlets 5 are communicated with the water storage cavity 3, a second guide plate 21 is fixedly connected to the inner wall of the feed inlet 5, the second guide plate 21 is arranged in an arc shape, two second side plates 22 are symmetrically fixedly connected to the top of the second guide plate 21, a first guide plate 19 is fixedly connected to the inner wall of the air inlet 4, the first guide plate 19 is arranged in an arc shape, two first side plates 20 are symmetrically fixedly connected to the top of the first guide plate 19, a convex block 23 is fixedly connected to the side of the second guide plate 21 close to the spray head 9, the top of the convex block 23 is arranged in an inclined surface, a plurality of stop blocks 24 are equidistantly fixedly connected to the inclined surface of the top of the convex block 23, and the top of the stop block 24 is arranged in an arc shape.

[0026] Through the above technical scheme, the box 1 is installed in the tunnel, the water for spraying is filled in the water storage tank 29, the air fan 6 is started, the air in the tunnel enters the detection cavity 2 along the air inlet 4, and then is discharged from the air extraction pipeline 7. The air is detected by the gas detector 37 when entering the detection cavity 2. At the same time of starting the air fan 6, the water pump 10 is started, the water in the water storage tank 29 is extracted to the spray head 9 along the water extraction pipeline 11 and the hose 12, and the air entering the air inlet 4 is sprayed downward through the spray head 9. Thus, the dust in the air is settled, the dust is prevented from entering the detection cavity 2 to block the gas detector 37, and the excessive components in the air are prevented from affecting the detection of the gas detector 37 on the dangerous gas such as gas, carbon monoxide and nitrogen dioxide. At the same time of spraying and dust-settling the air, the motor 14 is started to drive the second rotating shaft 15 to rotate, so that the first top block 16 rotates. When the protruding end of the first top block 16 rotates to the first lugs 13, the first lugs 13 are swung downward and the spray head 9 is swung to one side through the extrusion of the first top block 16, so that the tension spring 18 is pulled. When the protruding end of the first top block 16 is separated from the first lugs 13, the extrusion of the first top block 16 is lost, the spray head 9 is swung back and vibrated under the action of the tension spring 18. Thus, the spray head 9 can be continuously swung through the continuously rotating second rotating shaft 15, the spray head 9 forms a fan-shaped water curtain below, the dust-settling effect on the air is better, the water curtain swung to the protruding block 23 is bounced off the plurality of blocking blocks 24, so that the water curtain forms two water curtains, the water falling from the protruding block 23 drips along the end of the top inclined surface of the protruding block 23, so that a third water curtain is formed, the covering effect on the air is further improved, and the dust and mud adhered to the surface of the spray head 9 is shaken off through the vibration of the spray head 9, so that the mud is prevented from being dried on the spray head 9 to cause the water curtain to be lost. The mud shaken off from the spray head 9 is prevented from entering the detection cavity 2 through the blocking of the first and second guide plates 19 and 21, and the mud is prevented from falling into the tunnel again. The mud and water shaken off are made to slide onto the second guide plate 21 under the guidance of the first guide plate 19, and the mud and water are made to slide into the water storage cavity 3 under the guidance of the second guide plate 21.

[0027] Specifically, the filtering assembly comprises two sets of sliding shafts 25 symmetrically and fixedly installed on the inner wall of the box body 1, the outer wall of each of the two sets of sliding shafts 25 is slidably connected with a sliding block 27, the two sliding blocks 27 are fixedly connected with a filter plate 28, the top of the filter plate 28 is provided with symmetrical inclined surfaces, the outer wall of the sliding shaft 25 is sleeved with a spring 26, the top of the spring 26 is fixedly connected with the box body 1, the bottom of the spring 26 is fixedly connected with the sliding block 27, the bottom of the inner wall of the water storage cavity 3 is symmetrically provided with two sludge grooves 30 with the water storage groove 29 as the center, the two sides of the filter plate 28 respectively extend above the two sludge grooves 30, the bottom of the second flow guide plate 21 extends to the uppermost part of the inclined surface at the top of the filter plate 28, the inner wall of the water storage cavity 3 and below the filter plate 28 is symmetrically and rotatably connected with two third rotating shafts 31, the outer wall of each of the two third rotating shafts 31 is fixedly connected with a second top block 32, the bottom of the filter plate 28 is symmetrically and fixedly connected with two second convex plates 33, the second top block 32 is used in cooperation with the second convex plate 33, one end of the third rotating shaft 31 penetrates through the box body 1 and is fixedly connected with a second synchronous wheel 36, one end of the second rotating shaft 15 penetrates through the box body 1 and is fixedly connected with a first synchronous wheel 34, the first synchronous wheel 34 is drivingly connected with the second synchronous wheel 36 through a synchronous belt 35.

[0028] Through the above technical scheme, the slurry and water guided by the second flow guide plate 21 fall on the uppermost part of the inclined surface of the filter plate 28, thereby prolonging the filtering time of the filter plate 28 on the slurry and water, the slurry and water are filtered through the filter plate 28, the filtered water falls into the water storage groove 29 through the filter plate 28, the water for spraying is recycled, the cumbersome additional water supply is saved, the remaining slurry impurities slide along the inclined surface at the top of the filter plate 28 to the sludge grooves 30 for accumulation, thereby avoiding the secondary pollution to the air caused by direct discharge into the tunnel, the second rotating shaft 15 rotates to drive the first synchronous wheel 34 to rotate, through the synchronous belt 35, the second synchronous wheel 36 is driven to rotate, the third rotating shaft 31 is driven to rotate, the second top block 32 is driven to rotate, when the protruding end of the second top block 32 rotates to the second convex plate 33, the second convex plate 33 is swung upward through the extrusion of the second top block 32 to drive the filter plate 28 to move upward to compress the spring 26, as the second top block 32 rotates, when the protruding end of the second top block 32 is separated from the second convex plate 33, the extrusion of the second top block 32 is lost, the filter plate 28 is first moved downward and vibrated under the action of the spring 26, thereby through the continuously rotating second rotating shaft 15, the filter plate 28 can be continuously vibrated downward, thereby avoiding the filter plate 28 being blocked by the slurry impurities to affect the filtration of water.

[0029] Specifically, the guiding assembly comprises two second guide plates 38, the two second guide plates 38 are respectively fixedly installed at the bottom of the two first guide plates 17, the two second guide plates 38 are both provided in an arc shape, and the gas detector 37 is arranged between the two second guide plates 38.

[0030] Through the technical scheme, after the air enters the detection cavity 2, the air flows along the bottom of the two first guide plates 17, and when passing through the two second guide plates 38, the air is concentrated to flow to the gas detector 37 under the guidance of the arc surface at the bottom of the two second guide plates 38, so that the air is prevented from being too dispersed in the detection cavity 2 and missing detection, and the accuracy of tunnel air detection is improved.

[0031] Specifically, the rechecking assembly includes two electric telescopic rods 48, the two electric telescopic rods 48 are symmetrically installed on the inner wall of the box body 1, the top of the first guide plate 17 is sequentially and fixedly provided with a first baffle 39, a second baffle 40 and a third baffle 41 from bottom to top, the first baffle 39, the second baffle 40 and the third baffle 41 are all installed in an inclined manner, the inner wall of the second baffle 40 is provided with a first check valve 43, the first check valve 43 is open to the first baffle 39, a second check valve 46 is arranged between the first baffle 39 and the second baffle 40, the second check valve 46 is open to the gas detector 37, a piston plate 45 is slidably connected between the first baffle 39 and the second baffle 40, the piston plate 45 is located below the second check valve 46, the output end of the electric telescopic rod 48 is fixedly connected with a piston rod 44, one end of the piston rod 44 penetrates through the first guide plate 17 and is fixedly connected with the piston plate 45, the top of the third baffle 41 is fixedly connected with an extension plate 42, the extension plate 42 is installed in a vertical manner, the top of the second baffle 40 is fixedly connected with a third guide plate 47, the third guide plate 47 is arranged in an arc shape and the bottom of the third guide plate 47 extends to below the first baffle 39.

[0032] Through the technical scheme, after the air enters the detection cavity 2, the air flows along the bottom of the two first guide plates 17, and when passing through the two second guide plates 38, the air is concentrated to flow to the gas detector 37 under the guidance of the arc surface at the bottom of the two second guide plates 38, so that the air is prevented from being too dispersed in the detection cavity 2 and missing detection, and the accuracy of tunnel air detection is improved.

[0033] An operation method of the monitoring device for tunnel construction, which is applicable to the monitoring device for tunnel construction, and has the following steps: S1: install the box 1 in the tunnel, start the air extractor 6 to draw the air in the tunnel into the detection cavity 2 along the air inlet 4, and detect it by using the gas detector 37; S2: start the spray head 9 to spray and dust the air entering the air inlet 4, and start the motor 14 to control the spray head 9 to swing left and right reciprocally; S3: start the electric telescopic rod 48 to control the piston plate 45 to move up and down reciprocally, so that the air after detection flows to the gas detector 37 again for re-detection.

[0034] In use, the box 1 is installed in the tunnel, the water in the storage tank 29 is filled with water for spraying, the air fan 6 is started, the air in the tunnel enters the detection cavity 2 along the air inlet 4, the water pump 10 is started, the water in the storage tank 29 is pumped to the nozzle 9 along the water pumping pipeline 11 and the hose 12, and the water is sprayed downward through the nozzle 9, which sprays the air entering the air inlet 4, thereby making the dust in the air settle down, avoiding the dust entering the detection cavity 2 to block the gas detector 37, and avoiding too many components in the air affecting the detection of dangerous gases such as gas, carbon monoxide and nitrogen dioxide by the gas detector 37. While spraying the air to reduce dust, the motor 14 is started to drive the second shaft 15 to rotate, so that the first top block 16 rotates. When the protruding end of the first top block 16 rotates to the first lug plate 13, the first lug plate 13 is swung downward by the extrusion of the first top block 16, which drives the nozzle 9 to swing to one side and pulls the tension spring 18. As the first top block 16 rotates, when the protruding end of the first top block 16 is separated from the first lug plate 13, the extrusion of the first top block 16 is lost, and under the action of the tension spring 18, the nozzle 9 swings back and vibrates, thereby the nozzle 9 can continuously swing through the continuously rotating second shaft 15, so that the nozzle 9 forms a fan-shaped water curtain below, which can better settle the dust in the air. When the water curtain sprayed by the nozzle 9 swings to the protruding block 23, it rebounds by impacting on the several stop blocks 24, so that the water curtain forms two ways. At the same time, the water falling from the protruding block 23 drips along the end of the top inclined surface of the protruding block 23, forming a third water curtain, which further improves the coverage effect on the air. With the vibration of the nozzle 9, the dust and mud adhered to the surface of the nozzle 9 can be shaken off, avoiding the dust and mud from being dried on the nozzle 9 after forming mud, which causes the water curtain to be missing. Through the blocking of the first and second guide plates 19 and 21, the mud and mud shaken off from the nozzle 9 are prevented from entering the detection cavity 2, and the mud and mud are prevented from falling back into the tunnel. Under the guidance of the first guide plate 19, the mud and mud shaken off fall on the second guide plate 21. Under the guidance of the second guide plate 21, the mud and water slide to the water storage cavity 3. The mud and water guided by the second guide plate 21 fall on the uppermost side of the inclined surface of the filter plate 28, thereby prolonging the filtration time of the mud and water by the filter plate 28. The mud and water are filtered by the filter plate 28, and the filtered water falls into the water storage tank 29 through the filter plate 28, so that the water for spraying is recycled, saving the trouble of additional water supply. The remaining mud and impurities slide to the sludge tank 30 along the inclined surface on the top of the filter plate 28 for accumulation, avoiding direct discharge to the tunnel to cause secondary pollution to the air. The second shaft 15 rotates at the same time to drive the first synchronous wheel 34 to rotate, and through the synchronous belt 35, the second synchronous wheel 36 is driven to rotate, so that the third shaft 31 rotates to drive the second top block 32 to rotate. When the protruding end of the second top block 32 rotates to the second lug plate 33, the second lug plate 33 is swung upward by the extrusion of the second top block 32, which drives the filter plate 28 to move upward and compresses the spring 26. As the second top block 32 rotates,When the protruding end of the second top block 32 is separated from the second convex plate 33, the extrusion of the second top block 32 is lost, and under the action of the spring 26, the filter plate 28 is first moved downward and vibrates, thereby enabling the filter plate 28 to continuously vibrate downward through the continuous rotation of the second rotating shaft 15, avoiding the filter plate 28 being blocked by the mud impurities, affecting the filtration of water, and the air after dust removal enters the detection cavity 2 and flows along the bottom of the two first guide plates 17, and when passing through the two second guide plates 38, the air is concentrated and flows to the gas detector 37 under the guidance of the arc surface at the bottom of the two second guide plates 38, thereby avoiding the air being too dispersed in the detection cavity 2 and missing detection, and improving the accuracy of tunnel air detection. After the air passes through the gas detector 37 for detection, it continues to flow upward along the third partition plate 41 and the extension plate 42, and at this time, the piston rod 44 is driven to reciprocate upward and downward by the electric telescopic rod 48, and the piston plate 45 is driven to reciprocate upward and downward. When the piston plate 45 moves downward, under the pulling action of the piston plate 45, the air flowing upward along the extension plate 42 enters between the first partition plate 39 and the second partition plate 40 in cooperation with the first one-way valve 43 and the second one-way valve 46. When the piston plate 45 moves upward, under the extrusion of the piston plate 45, the air between the first partition plate 39 and the second partition plate 40 is discharged from the second one-way valve 46 and flows downward under the guidance of the concave surface in the third guide plate 47. When the air passes through the bottom of the third guide plate 47, under the action of the air blower 6, the air flows upward again, and under the guidance of the convex surface of the third guide plate 47, the air that has been checked again hits the gas detector 37, thereby rechecking the detected air, avoiding the missing detection phenomenon, and improving the detection accuracy of the tunnel air.

[0035] The above-mentioned front, rear, left, right, top, bottom are based on the observation angle of the person in the drawings Figure 1 as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and the like.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0037] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A monitoring device for tunnel construction, comprising a housing (1), wherein a detection chamber (2) is provided inside the housing (1), and a water storage chamber (3) is provided inside the housing (1) and below the detection chamber (2). Air inlets (4) are provided on both sides of the housing (1), and both air inlets (4) communicate with the detection chamber (2). A blower (6) is fixedly connected to the top of the housing (1), and a blower pipe (7) is connected to the output end of the blower (6). One end of the blower pipe (7) extends into the interior of the detection chamber (2), and a gas detector (37) is provided on the inner wall of the detection chamber (2). The device is characterized in that... Also includes: A spray assembly is used to spray air into the air intake detection chamber (2) to reduce dust. Vibration assembly for cleaning mud and dirt from nozzle (9); Filter components are used to purify water after dust settling; A guide assembly for guiding air into the air intake detection chamber (2); The retesting component is used to retest the air that has already been tested.

2. The monitoring device for tunnel construction according to claim 1, characterized in that, The spray assembly includes two first rotating shafts (8), which are rotatably connected to the inner wall of the air inlet (4). A water storage tank (29) is provided at the bottom of the inner wall of the water storage chamber (3). Spray heads (9) are fixedly connected to the outer walls of the two first rotating shafts (8). A water pump (10) is fixedly connected to the outer wall of the housing (1). The output end of the water pump (10) is connected to a water pumping pipe (11). One end of the water pumping pipe (11) extends into the interior of the water storage tank (29). The other end of the water pumping pipe (11) is fixedly connected to two hoses (12). The two hoses (12) are fixedly connected to the two spray heads (9) respectively.

3. The monitoring device for tunnel construction according to claim 2, characterized in that, The vibration assembly includes two first guide plates (17), which are symmetrically fixedly installed on the inner wall of the detection chamber (2). The first guide plates (17) are arc-shaped. Two motors (14) are symmetrically fixedly connected to the outer wall of the housing (1). The output end of the motor (14) extends into the interior of the detection chamber (2) and is fixedly connected to a second rotating shaft (15). A first top block (16) is fixedly connected to the outer wall of the second rotating shaft (15). A first convex plate (13) is fixedly connected to the outer wall of the nozzle (9). The first top block (16) and the first convex plate (13) are used in conjunction. A tension spring (18) is fixedly connected between the nozzle (9) and the first guide plate (17).

4. A monitoring device for tunnel construction according to claim 3, characterized in that, The outer wall of the box (1) is symmetrically provided with two feed inlets (5), both feed inlets (5) are connected to the water storage chamber (3). The inner wall of the feed inlet (5) is fixedly connected with a second guide plate (21). The second guide plate (21) is arc-shaped. The top of the second guide plate (21) is symmetrically fixedly connected with two second side plates (22). The inner wall of the air inlet (4) is fixedly connected with a first guide plate (19). The first guide plate (19) is arc-shaped. The top of the first guide plate (19) is symmetrically fixedly connected with two first side plates (20). The side of the second guide plate (21) near the nozzle (9) is fixedly connected with a protrusion (23). The top of the protrusion (23) is set as a slope. Several baffles (24) are fixedly connected at equal intervals on the slope of the top of the protrusion (23). The top of the baffles (24) is arc-shaped.

5. A monitoring device for tunnel construction according to claim 4, characterized in that, The filter assembly includes two sets of sliding shafts (25), which are symmetrically fixedly installed on the inner wall of the housing (1). The outer walls of the two sets of sliding shafts (25) are slidably connected to sliders (27). A filter plate (28) is fixedly connected between the two sets of sliders (27). The top of the filter plate (28) is set as a symmetrical inclined surface. A spring (26) is sleeved on the outer wall of the sliding shaft (25). The top of the spring (26) is fixedly connected to the housing (1), and the bottom of the spring (26) is fixedly connected to the slider (27). The bottom of the inner wall of the water storage chamber (3) is symmetrically opened with the water storage tank (29) as the center. The two sides of the filter plate (28) extend to the top of the two sludge tanks (30). The bottom of the second guide plate (21) extends to the top of the inclined surface of the top of the filter plate (28).

6. A monitoring device for tunnel construction according to claim 5, characterized in that, The inner wall of the water storage chamber (3) and below the filter plate (28) are symmetrically connected to two third rotating shafts (31). The outer walls of the two third rotating shafts (31) are fixedly connected to second top blocks (32). The bottom of the filter plate (28) is symmetrically fixedly connected to two second protruding plates (33). The second top blocks (32) and the second protruding plates (33) are used in conjunction. One end of the third rotating shaft (31) passes through the box body (1) and is fixedly connected to a second synchronous pulley (36). One end of the second rotating shaft (15) passes through the box body (1) and is fixedly connected to a first synchronous pulley (34). The first synchronous pulley (34) and the second synchronous pulley (36) are connected by a synchronous belt (35).

7. A monitoring device for tunnel construction according to claim 6, characterized in that, The guiding assembly includes two second guide plates (38), which are fixedly installed at the bottom of two first guide plates (17). Both second guide plates (38) are arc-shaped, and the gas detector (37) is disposed between the two second guide plates (38).

8. A monitoring device for tunnel construction according to claim 7, characterized in that, The re-inspection assembly includes two electric telescopic rods (48), which are symmetrically installed on the inner wall of the housing (1). A first partition (39), a second partition (40), and a third partition (41) are fixedly installed on the top of the first guide plate (17) from bottom to top. The first partition (39), the second partition (40), and the third partition (41) are all installed at an angle. A first one-way valve (43) is provided on the inner wall of the second partition (40). The first one-way valve (43) is open towards the first partition (39). A second one-way valve (46) is provided between the first partition (39) and the second partition (40). The second one-way valve (46) is open in the direction of the gas detector (37). A piston plate (45) is slidably connected between the first partition (39) and the second partition (40). The piston plate (45) is located below the second one-way valve (46). A piston rod (44) is fixedly connected to the output end of the electric telescopic rod (48). One end of the piston rod (44) passes through the first guide plate (17) and is fixedly connected to the piston plate (45).

9. A monitoring device for tunnel construction according to claim 8, characterized in that, An extension plate (42) is fixedly connected to the top of the third partition (41), and the extension plate (42) is installed vertically. A third guide plate (47) is fixedly connected to the top of the second partition (40), and the third guide plate (47) is arc-shaped and its bottom extends to the bottom of the first partition (39).

10. A method for operating a monitoring device for tunnel construction, the method being applicable to the monitoring device for tunnel construction and its operating method as described in claim 9, characterized in that: The steps for this operation are as follows: S1: Install the box (1) inside the tunnel, start the exhaust fan (6) to draw the air in the tunnel into the detection chamber (2) along the air inlet (4), and use the gas detector (37) to detect it; S2: Start the nozzle (9) to spray the air entering the air inlet (4) to reduce dust, and start the motor (14) to control the nozzle (9) to swing back and forth; S3: Start the electric telescopic rod (48) and control the piston plate (45) to move up and down repeatedly, so that the air after the first test flows back to the gas detector (37) for a second test.

Images