A construction tunnel ventilation system

Abstract

The present invention provides a construction tunnel ventilation system, which belongs to the technical field of tunnel construction, and solves the problem of high cost of ventilation and dust removal in the tunnel in the prior art. The construction tunnel ventilation system includes a casing, a base is fixedly installed on the upper end of the casing, a bellows is arranged at the rear end of the casing, the bellows is installed outside the tunnel, a plurality of air intake pipes are installed on the side of the casing, the bellows and the plurality of air intake pipes are connected through a bellows, an electric telescopic rod is fixedly installed on the upper end of the base, a mounting plate is fixedly installed on the upper end of the electric telescopic rod, and two symmetrically arranged first air inlet pipes are fixedly installed on the left side of the mounting plate. The present invention has the advantage of being able to clean the dust in the air inside the tunnel while efficiently supplying air to the inside of the tunnel.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction and relates to a ventilation system, in particular to a construction tunnel ventilation system. Background Art

[0002] With the rapid development of infrastructure construction, tunnel engineering, as an important transportation facility construction project, has particularly important safety issues during its construction. During tunnel construction, the ventilation system is one of the key factors to ensure the safety of construction workers and improve construction efficiency. Traditional tunnel ventilation systems usually use natural ventilation or simple mechanical ventilation methods, but these methods often cannot meet the ventilation needs in long distances and complex environments, resulting in a poor construction environment and even safety accidents.

[0003] In recent years, although some advanced tunnel ventilation technologies have been introduced into construction, such as high-pressure jet fans, there are still some problems in practical application. For example, although high-pressure jet fans can effectively remove smoke and dust, they have high energy consumption and high requirements for equipment installation and maintenance. The high cost of use limits their widespread application. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a construction tunnel ventilation system. The technical problem to be solved by the construction tunnel ventilation system is: how to achieve efficient air supply to the interior of the tunnel while cleaning the dust in the air inside the tunnel.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A construction tunnel ventilation system comprises a casing, a base is fixedly mounted on the upper end of the casing, a bellows is arranged at the rear end of the casing, the bellows is installed outside the tunnel, a plurality of air intake pipes are installed on the side of the casing, the bellows and the plurality of air intake pipes are connected via a bellows, an electric telescopic rod is fixedly mounted on the upper end of the base, a mounting plate is fixedly mounted on the upper end of the electric telescopic rod, two symmetrically arranged first air intake pipes are fixedly mounted on the left side of the mounting plate, a telescopic mechanism is arranged inside the first air intake pipe, a connecting pipe is also fixedly mounted on the left end of the mounting plate, and the upper end of the connecting pipe is connected to the inside of the first air intake pipe The lower end of the connecting pipe extends to the interior of the casing and is fixedly installed with a discharge port, a filter is rotatably installed inside the casing, strip cavities are opened on both sides of the filter inside the casing, a driving mechanism is arranged inside the strip cavity, a roller is rotatably installed inside the casing, a first brush strip for cleaning the filter is fixedly installed outside the roller, a transmission mechanism is arranged on the side of the roller, a collecting box is fixedly installed at the bottom of the casing, a collecting mechanism is arranged inside the collecting box, a first nozzle facing the inner wall of the filter is fixedly installed on the inner wall of the filter, an impact mechanism is arranged inside the first nozzle.

[0007] The working principle of the present invention is: air is sucked through the telescopic mechanism, and the air with high oxygen content outside the tunnel is passed into the interior of the tunnel under the action of atmospheric pressure, thereby completing the ventilation of the interior of the tunnel, and at the same time, impurities such as dust are filtered out through the filter, and the filter is driven by the driving mechanism to transport impurities such as dust, and the dust and other impurities in the filter are brushed off by the transmission mechanism, and the dust accumulated in the first brush bar is collected by the collecting mechanism, and the sprayed water flow is made to present an intermittent impact state through the impact mechanism, thereby flushing the inner wall of the filter, thereby improving the flushing efficiency of the filter by the water flow.

[0008] The telescopic mechanism includes a second air intake pipe slidably installed inside the first air intake pipe, a third air intake pipe is also slidably installed inside the second air intake pipe, the right end of the second air intake pipe is connected to the right end inner wall of the first air intake pipe via a first air bag, the right end of the third air intake pipe is connected to the left end inner wall of the second air intake pipe via a second air bag, the right end of the second air intake pipe is also provided with a rectangular cavity, a fan is fixedly installed inside the rectangular cavity, the first air bag and the second air bag are both connected to the fan, strip air inlets are provided at the bottom of the first air intake pipe, the left end outer walls of the second air intake pipe and the third air intake pipe are fixedly installed with a bayonet, and the right inner wall of the first air intake pipe is also fixedly installed with a fixing rod, and the outer wall of the fixing rod fits with the inner wall of the third air intake pipe.

[0009] By adopting the above structure, when ventilating the interior of the tunnel, the casing can be moved to the interior of the construction tunnel, and then the electric telescopic rod can be started to lift the mounting plate, and the fan inside the rectangular cavity can be started at the same time. The fan can extract the gas inside the second air bag and then press it into the interior of the first air bag, thereby driving the second air inlet pipe to extend from the interior of the first air inlet pipe, and at the same time driving the third air inlet pipe to extend from the interior of the second air inlet pipe. After the second air inlet pipe and the third air inlet pipe are fully extended, the bellows can be started again, and air can be extracted through the bellows. Then the gas inside the tunnel will enter the interior of the connecting pipe from the multiple strip air inlets and be exhausted through the exhaust After the discharge is discharged from the outlet, dust and other impurities will be filtered out by the filter, and the gas will enter the bellows through multiple suction pipes and then be discharged from the tunnel through the bellows. At the same time, the high-oxygen air outside the tunnel will automatically enter the interior of the tunnel under the action of atmospheric pressure, thereby completing the ventilation of the interior of the tunnel. When the second and third air intake pipes are retracted, the second air intake pipe will clean the interior of the first air intake pipe, and the third air intake pipe will clean the interior of the second air intake pipe. The fixed rod will clean the interior of the third air intake pipe, and the dust will be discharged through the strip air inlet. The fixed rod can ensure that after the third air intake pipe is retracted, no debris will enter the interior of the pipe body.

[0010] The driving mechanism includes a first motor fixedly mounted on the inner wall of the casing, two transmission shafts are rotatably mounted inside the casing, the right end of the middle transmission shaft is fixedly connected to the output end of the first motor, rollers are fixedly mounted in the middle of the two transmission shafts inside the casing, the filter screen is mounted on the outside of the two rollers, first transmission wheels are fixedly mounted on the outer edges of the two transmission shafts inside the strip cavity, and the two first transmission wheels are connected by a first transmission belt.

[0011] By adopting the above structure, after the dust is discharged onto the filter through the discharge port, the first motor inside the casing can be started, and then the first motor will drive the transmission shaft to rotate, and then drive another transmission shaft to rotate through the first transmission wheel outside the transmission shaft and the first transmission belt, thereby driving the two rollers inside the casing to rotate at the same time, and then driving the filter to transport impurities such as dust.

[0012] The transmission mechanism includes a rotating shaft slidably installed between two strip cavities, the rotating roller is fixedly installed in the middle of the rotating shaft, the outer edge of the rotating shaft is provided with a strip groove inside the strip cavity, the inner wall of the strip cavity is rotatably provided with a sliding sleeve, the inner wall of the sliding sleeve is clamped in the strip groove and slidably connected to the strip groove, the outer wall of the sliding sleeve and the outer wall of the middle transmission shaft are both fixedly installed with a second transmission wheel, the two second transmission wheels are connected by a second transmission belt, and a reciprocating mechanism is provided between the rotating shaft and the inner wall of the strip cavity.

[0013] With the above structure, after the transmission shaft rotates, the sliding sleeve will also be driven to rotate through the second transmission belt. Since the sliding sleeve is clamped inside the rotating shaft, it will drive the rotating shaft to rotate together, and then drive the roller inside the casing to rotate. The rotation direction of the roller is opposite to the rotation direction of the filter, so that it is convenient to brush off dust and other impurities in the filter through the first brush bar. The reciprocating mechanism can drive the rotating shaft to move back and forth horizontally, thereby improving the cleaning efficiency of the first brush bar.

[0014] The reciprocating mechanism comprises two first magnets respectively fixedly mounted at two ends of the rotating shaft, and second magnets mutually attracted to the first magnets are fixedly mounted inside the two strip-shaped cavities, and the positions of the two second magnets are staggered.

[0015] By adopting the above structure, when the sliding sleeve drives the rotating shaft to rotate, when the first magnet at the end of the rotating shaft approaches the second magnet, the first magnet will be attracted by the second magnet. At the same time, the first magnet and the second magnet on the other side will move away from each other due to their staggered positions, thereby driving the rotating shaft and the roller to move toward one side of the casing. As the rotating shaft rotates, the first magnet and the second magnet on the other side will approach each other, thereby pulling the rotating shaft back, and then driving the rotating shaft and the roller to move back and forth.

[0016] The collecting mechanism includes a second motor fixedly mounted on the outside of the collecting box, a transmission rod fixedly mounted on the output end of the second motor, the transmission rod extends to the inside of the collecting box and is fixedly mounted with a spiral conveying blade, an opening cooperating with the first brush strip is provided at the upper right end of the collecting box, a second nozzle is fixedly mounted on the inner wall of the opening, a first sewage pipe is fixedly mounted on the lower left end of the collecting box, swivels are rotatably mounted on both sides of the rotating roller on the outside of the rotating shaft, a U-shaped rod is fixedly mounted between the two swivels, a second brush strip is fixedly mounted on the outside of the U-shaped rod, and the second brush strip and the first brush strip are staggered with each other.

[0017] By adopting the above structure, when the first brush bar cleans the filter, the second motor outside the collection box can be started, and the transmission rod and the spiral conveying blade are driven by the second motor to rotate, thereby transporting impurities such as dust to the inside of the first sewage pipe, and at the same time, the second nozzle is opened to flush away the dust accumulated inside the first brush bar, thereby improving the dust cleaning efficiency. The two rotating rings can drive the second brush bar outside the U-shaped rod to reciprocate with the rotating shaft, thereby continuously brushing away the debris inside the first brush bar, thereby further improving the dust cleaning efficiency.

[0018] The impact mechanism includes a third magnet fixedly installed inside the right roller, a water pipe is installed at the rear end of the first nozzle, a compression section is arranged inside the first nozzle, and sliding grooves are provided on the inner walls on both sides of the nozzle of the first nozzle, a slider is slidably installed between the two sliding grooves, a fourth magnet is fixedly installed inside the slider, the fourth magnet and the third magnet attract each other, and a second sewage pipe is also fixedly installed at the rear end of the casing.

[0019] By adopting the above structure, water can be passed to the inside of the first nozzle through the water pipe during the rotation of the filter. Then, the water flow rate will increase after passing through the compression section, and then it will be sprayed out in a jet shape after impacting the slider between the two chutes. At the same time, the third magnet inside the right roller will intermittently attract the fourth magnet inside the slider, thereby driving the slider to move inside the chute, so that the sprayed water flow will present an intermittent impact shape, and then flush the inner wall of the filter, thereby improving the flushing efficiency of the water flow on the filter.

[0020] A protective plate is also fixedly installed between the two inner sides of the housing, and the upper and lower ends of the protective plate are close to the inner wall of the filter screen.

[0021] With the above structure, the protective plate can scrape off impurities on the inner wall during the rotation of the filter, thereby preventing the impurities from being stuck between the filter and the roller, thereby reducing damage to the filter.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. When ventilating the interior of the tunnel, move the housing to the interior of the construction tunnel, then start the electric telescopic rod to lift the mounting plate, and then start the fan inside the rectangular cavity. The fan will extract the gas inside the second airbag and then press it into the first airbag, thereby driving the second air intake pipe to extend from the inside of the first air intake pipe, and at the same time drive the third air intake pipe to extend from the inside of the second air intake pipe. After the second air intake pipe and the third air intake pipe are fully extended, start the bellows and extract air through the bellows. Then the gas inside the tunnel will enter the interior of the connecting pipe from multiple strip air inlets and be discharged through the discharge port. After exiting, dust and other impurities will be filtered out by the filter, and the gas will enter the bellows through multiple intake pipes and then be discharged from the tunnel through the bellows. At the same time, the high-oxygen air outside the tunnel will automatically enter the interior of the tunnel under the action of atmospheric pressure, thereby completing the ventilation of the interior of the tunnel. When the second air intake pipe and the third air intake pipe are retracted, the second air intake pipe will clean the inside of the first air intake pipe, and the third air intake pipe will clean the inside of the second air intake pipe. The fixed rod will clean the inside of the third air intake pipe, and the dust will be discharged through the strip air inlet. The fixed rod can ensure that after the third air intake pipe is retracted, no debris will enter the inside of the pipe body.

[0024] 2. After the dust is discharged onto the filter through the discharge port, the first motor inside the casing is started, and then the first motor will drive the transmission shaft to rotate, and then drive another transmission shaft to rotate through the first transmission wheel outside the transmission shaft and the first transmission belt, thereby driving the two rollers inside the casing to rotate at the same time, and then driving the filter to transport impurities such as dust. After the transmission shaft rotates, the sliding sleeve will also be driven to rotate through the second transmission belt. Since the sliding sleeve is stuck inside the rotating shaft, it drives the rotating shaft to rotate together, and then drives the rotating roller inside the casing to rotate. The rotation direction of the rotating roller is opposite to that of the filter, so that it is convenient to brush off the dust and other impurities in the filter through the first brush bar. The reciprocating mechanism can drive the rotating shaft to move back and forth horizontally, thereby improving the cleaning efficiency of the first brush bar.

[0025] 3. In the process of the sliding sleeve driving the rotating shaft to rotate, when the first magnet and the second magnet at the end of the rotating shaft are close to each other, the first magnet and the second magnet on the other side will be attracted by the second magnet. At the same time, due to the misaligned positions, the first magnet and the second magnet on the other side will move away from each other, thereby driving the rotating shaft and the roller to move toward one side of the casing. As the rotating shaft rotates, the first magnet and the second magnet on the other side will approach each other, thereby pulling the rotating shaft back, and then driving the rotating shaft and the roller to move back and forth.

[0026] 4. When the first brush bar is cleaning the filter, the second motor outside the collection box can be started, and the transmission rod and the spiral conveying blade can be driven by the second motor to rotate, thereby transporting dust and other impurities to the inside of the first sewage pipe. At the same time, the second nozzle is opened to flush away the dust accumulated in the first brush bar through the second nozzle, thereby improving the dust cleaning efficiency.

[0027] 5. During the rotation of the filter, water is passed into the first nozzle through the water pipe. Then, the water velocity will increase after passing through the compression section, and then it will be ejected in a jet shape after impacting the slider between the two chutes. At the same time, the third magnet inside the right roller will intermittently attract the fourth magnet inside the slider, thereby driving the slider to move inside the chute, so that the ejected water flow will be intermittently impacted, and then the inner wall of the filter will be flushed, thereby improving the flushing efficiency of the filter by the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the internal structure of the present invention.

[0029] Figure 2 It is a side structural schematic diagram of the present invention.

[0030] Figure 3 It is a schematic diagram of the internal structure of the strip cavity of the present invention.

[0031] Figure 4 yes Figure 3 A magnified view of the structure at A.

[0032] Figure 5 It is a structural diagram of the third air intake pipe of the present invention after being extended.

[0033] Figure 6 It is a structural diagram of the third intake pipe after contraction of the present invention.

[0034] Figure 7 It is a schematic diagram of the internal structure of the rectangular cavity of the present invention.

[0035] Figure 8 It is a diagram showing the internal structure of the first nozzle of the present invention.

[0036] Fig. 9 It is a structural diagram of the end portion of the third intake pipe of the present invention.

[0037] In the figure, 1, housing; 2, base; 3, electric telescopic rod; 4, mounting plate; 5, first air inlet pipe; 6, second air inlet pipe; 7, third air inlet pipe; 8, connecting pipe; 9, bellows; 10, bellows; 11, air intake pipe; 12, discharge port; 13, filter; 14, first motor; 15, strip cavity; 16, transmission shaft; 17, roller; 18, protective plate; 19, first transmission belt; 20, rotating shaft; 21, sliding sleeve; 22, second transmission belt; 23, rotating roller; 24, first brush strip; 25, first magnet ; 26. second magnet; 27. collecting box; 28. second motor; 29. ​​spiral conveying blade; 30. strip air inlet; 31. latch; 32. rectangular cavity; 33. fan; 34. first air bag; 35. second air bag; 36. fixing rod; 37. third magnet; 38. first nozzle; 39. water guide pipe; 40. compression section; 41. slide; 42. fourth magnet; 43. first sewage pipe; 44. second sewage pipe; 45. second nozzle; 46. swivel; 47. U-shaped rod; 48. second brush strip. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0039] like Figure 1-Figure 9As shown, the construction tunnel ventilation system includes a casing 1, a base 2 is fixedly installed on the upper end of the casing 1, a bellows 9 is arranged at the rear end of the casing 1, the bellows 9 is installed outside the tunnel, a plurality of air intake pipes 11 are installed on the side of the casing 1, the bellows 9 and the plurality of air intake pipes 11 are connected through a bellows 10, an electric telescopic rod 3 is fixedly installed on the upper end of the base 2, a mounting plate 4 is fixedly installed on the upper end of the electric telescopic rod 3, two symmetrically arranged first air intake pipes 5 are fixedly installed on the left side of the mounting plate 4, a telescopic mechanism is arranged inside the first air intake pipe 5, a connecting pipe 8 is also fixedly installed on the left end of the mounting plate 4, the upper end of the connecting pipe 8 is connected to the inside of the first air intake pipe 5, and the connecting pipe 8 The lower end extends to the interior of the casing 1 and is fixedly installed with a discharge port 12, a filter screen 13 is rotatably installed inside the casing 1, strip cavities 15 are opened on both sides of the filter screen 13 inside the casing 1, a driving mechanism is arranged inside the strip cavity 15, a roller 23 is also rotatably installed inside the casing 1, a first brush strip 24 for cleaning the filter screen 13 is fixedly installed outside the roller 23, a transmission mechanism is arranged on the side of the roller 23, a collecting box 27 is fixedly installed at the bottom of the casing 1, a collecting mechanism is arranged inside the collecting box 27, a first nozzle 38 facing the inner wall of the filter screen 13 is fixedly installed on the inner wall of the casing 1, and an impact mechanism is arranged inside the first nozzle 38.

[0040] The telescopic mechanism includes a second air intake pipe 6 slidably installed inside the first air intake pipe 5, and a third air intake pipe 7 is also slidably installed inside the second air intake pipe 6. The right end of the second air intake pipe 6 is connected to the right inner wall of the first air intake pipe 5 via a first air bag 34, and the right end of the third air intake pipe 7 is connected to the left inner wall of the second air intake pipe 6 via a second air bag 35. A rectangular cavity 32 is also provided at the right end of the second air intake pipe 6, and a fan 33 is fixedly installed inside the rectangular cavity 32. The first air bag 34 and the second air bag 35 are both connected to the fan 33. Strip air inlets 30 are provided at the bottom of the first air intake pipe 5, the second air intake pipe 6 and the third air intake pipe 7, and the left outer walls of the second air intake pipe 6 and the third air intake pipe 7 are fixedly installed with a bayonet 31. A fixing rod 36 is also fixedly installed on the right inner wall of the first air intake pipe 5, and the outer wall of the fixing rod 36 fits with the inner wall of the third air intake pipe 7.

[0041] In this embodiment, when ventilating the interior of the tunnel, the casing 1 can be moved to the interior of the construction tunnel, and then the electric telescopic rod 3 is started to lift the mounting plate 4, and at the same time, the fan 33 in the rectangular cavity 32 is started, and the fan 33 will extract the gas in the second air bag 35, and then press it into the first air bag 34, thereby driving the second air intake pipe 6 to extend from the inside of the first air intake pipe 5, and at the same time driving the third air intake pipe 7 to extend from the inside of the second air intake pipe 6. After the second air intake pipe 6 and the third air intake pipe 7 are completely extended 9, the bellows 9 is started again, and air is extracted through the bellows 10, and then the gas inside the tunnel will enter the inside of the connecting pipe 8 from the multiple strip air inlets 30, and pass through After being discharged through the discharge port 12, dust and other impurities will be filtered out by the filter 13, and the gas will enter the bellows 10 through multiple intake pipes 11, and then be discharged from the tunnel through the bellows 9. At the same time, the high-oxygen air outside the tunnel will automatically enter the interior of the tunnel under the action of atmospheric pressure, thereby completing the ventilation of the interior of the tunnel. When the second air intake pipe 6 and the third air intake pipe 7 are retracted, the second air intake pipe 6 will clean the interior of the first air intake pipe 5, and the third air intake pipe 7 will clean the interior of the second air intake pipe 6. The fixing rod 36 will clean the interior of the third air intake pipe 7, and the dust will be discharged through the strip air inlet 30. The fixing rod 36 can ensure that after the third air intake pipe 7 is retracted, no debris will enter the interior of the pipe body.

[0042] The driving mechanism includes a first motor 14 fixedly mounted on the inner wall of the casing 1, two transmission shafts 16 are rotatably mounted inside the casing 1, the right end of the middle transmission shaft 16 is fixedly connected to the output end of the first motor 14, rollers 17 are fixedly mounted in the middle of the two transmission shafts 16 inside the casing 1, the filter 13 is mounted on the outside of the two rollers 17, the outer edges of the two transmission shafts 16 are fixedly mounted inside the strip cavity 15 with first transmission wheels, and the two first transmission wheels are connected through a first transmission belt.

[0043] In this embodiment, after the dust is discharged onto the filter 13 through the discharge port 12, the first motor 14 inside the casing 1 is started, and then the first motor 14 drives the transmission shaft 16 to rotate, and then drives another transmission shaft 16 to rotate through the first transmission wheel outside the transmission shaft 16 and the first transmission belt 19, thereby driving the two rollers 17 inside the casing 1 to rotate at the same time, and then driving the filter 13 to transport impurities such as dust.

[0044] The transmission mechanism includes a rotating shaft 20 slidably installed between the two strip cavities 15, a rotating roller 23 is fixedly installed in the middle of the rotating shaft 20, a strip groove is opened on the outer edge of the rotating shaft 20 inside the strip cavity 15, a sliding sleeve 21 is rotatably installed on the inner wall of the strip cavity 15, the inner wall of the sliding sleeve 21 is clamped in the strip groove and slidably connected with the strip groove, the outer wall of the sliding sleeve 21 and the outer wall of the middle transmission shaft 16 are fixedly installed with a second transmission wheel, the two second transmission wheels are connected by a second transmission belt 22, and a reciprocating mechanism is arranged between the rotating shaft 20 and the inner wall of the strip cavity 15.

[0045] In this embodiment, after the transmission shaft 16 rotates, the sliding sleeve 21 is also driven to rotate through the second transmission belt 22. Since the sliding sleeve 21 is clamped inside the rotating shaft 20, it drives the rotating shaft 20 to rotate together, and then drives the roller 23 inside the casing 1 to rotate. The rotation direction of the roller 23 is opposite to the rotation direction of the filter 13, so that it is convenient to brush off dust and other impurities in the filter through the first brush bar 24. The reciprocating mechanism can drive the rotating shaft 20 to move back and forth horizontally, thereby improving the cleaning efficiency of the first brush bar 24.

[0046] The reciprocating mechanism includes two first magnets 25 respectively fixedly mounted at both ends of the rotating shaft 20 , and second magnets 26 mutually attracted to the first magnets 25 are fixedly mounted inside the two bar-shaped cavities 15 , and the positions of the two second magnets 26 are staggered.

[0047] In this embodiment, when the sleeve 21 drives the rotating shaft 20 to rotate, when the first magnet 25 and the second magnet 26 at the end of the rotating shaft 20 get close to each other, they will be sucked away by the second magnet 26. At the same time, the first magnet 25 and the second magnet 26 on the other side will move away from each other due to their staggered positions, thereby driving the rotating shaft 20 and the roller 23 to move toward one side of the housing 1. As the rotating shaft 20 rotates, the first magnet 25 and the second magnet 26 on the other side will get close to each other, thereby pulling the rotating shaft 20 back, and then driving the rotating shaft 20 and the roller 23 to move back and forth.

[0048] The collecting mechanism includes a second motor 28 fixedly mounted on the outside of the collecting box 27, a transmission rod fixedly mounted on the output end of the second motor 28, the transmission rod extends to the inside of the collecting box 27 and is fixedly mounted with a spiral conveying blade 29, an opening cooperating with the first brush strip 24 is opened at the upper right end of the collecting box 27, a second nozzle 45 is fixedly mounted on the inner wall of the opening, a first sewage pipe 43 is fixedly mounted on the lower left end of the collecting box 27, swivels 46 are rotatably mounted on both sides of the rotating roller 23 on the outside of the rotating shaft 20, a U-shaped rod 47 is fixedly mounted between the two swivels 46, a second brush strip 48 is fixedly mounted on the outside of the U-shaped rod 47, and the second brush strip 48 and the first brush strip 24 are staggered with each other.

[0049] In this embodiment, when the first brush bar 24 cleans the filter 13, the second motor 28 outside the collecting box 27 can be started, and the transmission rod and the spiral conveying blade 29 can be driven by the second motor 28 to rotate, thereby transporting impurities such as dust to the interior of the first sewage pipe 43, and at the same time, the second nozzle 45 is opened to flush away the dust accumulated inside the first brush bar 24 through the second nozzle 45, thereby improving the dust cleaning efficiency, and the two rotating rings 46 can drive the second brush bar 48 outside the U-shaped rod 47 to reciprocate together with the rotating shaft 20, thereby continuously brushing away the debris inside the first brush bar 24, thereby further improving the dust cleaning efficiency.

[0050] The impact mechanism includes a third magnet 37 fixedly installed inside the right roller 17, a water pipe 39 is installed at the rear end of the first nozzle 38, a compression section 40 is arranged inside the first nozzle 38, and slide grooves 41 are provided on the inner walls on both sides of the nozzle of the first nozzle 38, a slider is slidably installed between the two slide grooves 41, a fourth magnet 42 is fixedly installed inside the slider, the fourth magnet 42 and the third magnet 37 attract each other, and a second sewage pipe 44 is also fixedly installed at the rear end of the casing 1.

[0051] In this embodiment, water can be passed through the water pipe 39 to the interior of the first nozzle 38 during the rotation of the filter 13. Then, the flow rate of the water will increase after passing through the compression section 40, and then it will be sprayed out in a jet shape after impacting the slider between the two chutes 41. At the same time, the third magnet 37 inside the right roller 17 will intermittently attract the fourth magnet inside the slider, thereby driving the slider to move inside the chute 41, so that the sprayed water flow will present an intermittent impact shape, and then flush the inner wall of the filter 13, thereby improving the flushing efficiency of the water flow on the filter.

[0052] A protective plate 18 is fixedly installed between the two sides of the housing 1 , and the upper and lower ends of the protective plate 18 are close to the inner wall of the filter screen 13 .

[0053] In this embodiment, the protective plate 18 can scrape off impurities on the inner wall during the rotation of the filter screen 13 , thereby preventing the impurities from being stuck between the filter screen 13 and the roller 17 , thereby reducing damage to the filter screen 13 .

[0054] The working principle of the present invention is as follows: when ventilating the interior of the tunnel, the casing 1 is moved to the interior of the construction tunnel, and then the electric telescopic rod 3 is started to lift the mounting plate 4, and at the same time, the fan 33 in the rectangular cavity 32 is started, and the fan 33 extracts the gas in the second air bag 35, and then presses it into the interior of the first air bag 34, thereby driving the second air intake pipe 6 to extend from the interior of the first air intake pipe 5, and at the same time driving the third air intake pipe 7 to extend from the interior of the second air intake pipe 6. After the second air intake pipe 6 and the third air intake pipe 7 are completely extended 9, the bellows 9 is started again, and air is extracted through the bellows 10, and then the gas inside the tunnel enters the interior of the connecting pipe 8 from the multiple strip air inlets 30, and is discharged through the exhaust port 12, and the ash is Dust and other impurities will be filtered out by the filter 13, and the gas will enter the bellows 10 through multiple suction pipes 11, and then be discharged from the tunnel through the bellows 9. At the same time, the high-oxygen air outside the tunnel will automatically enter the interior of the tunnel under the action of atmospheric pressure, thereby completing the ventilation of the interior of the tunnel. When the second air intake pipe 6 and the third air intake pipe 7 are retracted, the second air intake pipe 6 will clean the interior of the first air intake pipe 5, and the third air intake pipe 7 will clean the interior of the second air intake pipe 6. The fixing rod 36 will clean the interior of the third air intake pipe 7, and the dust will be discharged through the strip air inlet 30. The fixing rod 36 can ensure that after the third air intake pipe 7 is retracted, no debris will enter the interior of the pipe body again. After the dust is discharged to the filter 13 through the discharge port 12, Start the first motor 14 inside the casing 1, and then the first motor 14 will drive the transmission shaft 16 to rotate, and then drive the other transmission shaft 16 to rotate through the first transmission wheel outside the transmission shaft 16 and the first transmission belt 19, thereby driving the two rollers 17 inside the casing 1 to rotate at the same time, and then drive the filter 13 to transport impurities such as dust. After the transmission shaft 16 rotates, the sliding sleeve 21 is also driven to rotate through the second transmission belt 22. Since the sliding sleeve 21 is stuck inside the rotating shaft 20, the rotating shaft 20 is driven to rotate together, and then the rotating roller 23 inside the casing 1 is driven to rotate. The rotation direction of the rotating roller 23 is opposite to that of the filter 13, so that the dust and other impurities in the filter can be brushed off by the first brush bar 24. The reciprocating mechanism can bring The movable shaft 20 moves back and forth laterally, thereby improving the cleaning efficiency of the first brush strip 24. When the sliding sleeve 21 drives the shaft 20 to rotate, when the first magnet 25 and the second magnet 26 at the end of the shaft 20 are close to each other, they will be sucked away by the second magnet 26. At the same time, the first magnet 25 and the second magnet 26 on the other side will move away from each other due to their staggered positions, thereby driving the shaft 20 and the roller 23 to move toward one side of the casing 1. As the shaft 20 rotates, the first magnet 25 and the second magnet 26 on the other side will approach each other, thereby pulling the shaft 20 back, and then driving the shaft 20 and the roller 23 to move back and forth. When the first brush strip 24 cleans the filter screen 13, the second motor 28 outside the collection box 27 can be started.The second motor 28 drives the transmission rod and the spiral conveying blade 29 to rotate, and then the dust and other impurities are transported to the inside of the first sewage pipe 43. At the same time, the second nozzle 45 is opened, and the dust accumulated in the first brush strip 24 is flushed away by the second nozzle 45, thereby improving the cleaning efficiency of the dust. During the rotation of the filter 13, water is passed to the inside of the first nozzle 38 through the water guide pipe 39. Then, the flow rate of the water body will increase after passing through the compression section 40, and then it will be ejected in a jet shape after impacting the slider between the two chutes 41. At the same time, the third magnet 37 inside the right roller 17 will intermittently attract the fourth magnet inside the slider, thereby driving the slider to move inside the chute 41, so that the ejected water flow will be intermittently impacted, and then the inner wall of the filter 13 is flushed, thereby improving the flushing efficiency of the water flow on the filter. During the rotation of the filter 13, the protective plate 18 can scrape off the impurities on the inner wall, thereby preventing the impurities from being stuck between the filter 13 and the roller 17, thereby reducing the damage to the filter 13.

[0055] In summary, air is sucked in through the telescopic mechanism, and the high-oxygen air outside the tunnel is passed into the interior of the tunnel under the action of atmospheric pressure, thereby completing the ventilation of the interior of the tunnel. At the same time, impurities such as dust are filtered out through the filter 13, and the filter 13 is driven by the driving mechanism to transport impurities such as dust. The dust and other impurities in the filter 13 are brushed off by the transmission mechanism, and the dust accumulated in the first brush bar 24 is collected by the collecting mechanism. The ejected water flow is made to present an intermittent impact state through the impact mechanism, and then the inner wall of the filter 13 is flushed, thereby improving the flushing efficiency of the filter by the water flow.

[0056] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A construction tunnel ventilation system, comprising a housing (1), characterized in that: A base (2) is fixedly mounted on the upper end of the casing (1), a bellows (9) is provided at the rear end of the casing (1), the bellows (9) being mounted outside the tunnel, a plurality of air intake pipes (11) are mounted on the side of the casing (1), the bellows (9) being connected to the plurality of air intake pipes (11) via a bellows (10), an electric telescopic rod (3) is fixedly mounted on the upper end of the base (2), a mounting plate (4) is fixedly mounted on the upper end of the electric telescopic rod (3), two symmetrically arranged first air intake pipes (5) are fixedly mounted on the left side of the mounting plate (4), a telescopic mechanism is provided inside the first air intake pipe (5), a connecting pipe (8) is also fixedly mounted on the left end of the mounting plate (4), the upper end of the connecting pipe (8) is connected to the inside of the first air intake pipe (5), and the lower end of the connecting pipe (8) extends to A discharge port (12) is fixedly installed inside the casing (1), a filter screen (13) is rotatably installed inside the casing (1), strip cavities (15) are provided inside the casing (1) on both sides of the filter screen (13), a driving mechanism is arranged inside the strip cavity (15), a roller (23) is rotatably installed inside the casing (1), a first brush strip (24) for cleaning the filter screen (13) is fixedly installed outside the roller (23), a transmission mechanism is arranged on the side of the roller (23), a collecting box (27) is fixedly installed at the bottom of the casing (1), a collecting mechanism is arranged inside the collecting box (27), a first nozzle (38) facing the inner wall of the filter screen (13) is fixedly installed on the inner wall of the casing (1), an impact mechanism is arranged inside the first nozzle (38); The telescopic mechanism comprises a second air intake pipe (6) slidably mounted inside the first air intake pipe (5); a third air intake pipe (7) is also slidably mounted inside the second air intake pipe (6); the right end of the second air intake pipe (6) is connected to the inner wall of the right end of the first air intake pipe (5) via a first air bag (34); the right end of the third air intake pipe (7) is connected to the inner wall of the left end of the second air intake pipe (6) via a second air bag (35); the right end of the second air intake pipe (6) is also provided with a rectangular cavity (32); the interior of the rectangular cavity (32) is A fan (33) is fixedly installed, the first air bag (34) and the second air bag (35) are both connected to the fan (33), the first air inlet pipe (5), the second air inlet pipe (6) and the third air inlet pipe (7) are each provided with a strip-shaped air inlet (30) at the bottom, the left end outer wall of the second air inlet pipe (6) and the third air inlet pipe (7) are both fixedly installed with a bayonet (31), and the right inner wall of the first air inlet pipe (5) is also fixedly installed with a fixing rod (36), and the outer wall of the fixing rod (36) is in contact with the inner wall of the third air inlet pipe (7); The driving mechanism comprises a first motor (14) fixedly mounted on the inner wall of the casing (1); two transmission shafts (16) are rotatably mounted inside the casing (1); the right end of the middle transmission shaft (16) is fixedly connected to the output end of the first motor (14); rollers (17) are fixedly mounted in the middle of the two transmission shafts (16) inside the casing (1); the filter screen (13) is mounted outside the two rollers (17); first transmission wheels are fixedly mounted on the outer edges of the two transmission shafts (16) inside the strip cavity (15); and the two first transmission wheels are connected to each other through a first transmission belt. The transmission mechanism comprises a rotating shaft (20) slidably mounted between two strip-shaped cavities (15); the rotating roller (23) is fixedly mounted in the middle of the rotating shaft (20); the outer edge of the rotating shaft (20) is provided with a strip groove inside the strip-shaped cavity (15); a sliding sleeve (21) is rotatably mounted on the inner wall of the strip-shaped cavity (15); the inner wall of the sliding sleeve (21) is clamped inside the strip groove and is slidably connected to the strip groove; a second transmission wheel is fixedly mounted on the outer wall of the sliding sleeve (21) and the outer wall of the middle transmission shaft (16); the two second transmission wheels are connected in transmission via a second transmission belt (22); and a reciprocating mechanism is provided between the rotating shaft (20) and the inner wall of the strip-shaped cavity (15); The collecting mechanism comprises a second motor (28) fixedly mounted on the outside of the collecting box (27); a transmission rod is fixedly mounted on the output end of the second motor (28); the transmission rod extends into the interior of the collecting box (27) and is fixedly mounted with a spiral conveying blade (29); an opening cooperating with the first brush strip (24) is formed at the upper right end of the collecting box (27); a second nozzle (45) is fixedly mounted on the inner wall of the opening; a first sewage discharge pipe (43) is fixedly mounted on the lower left end of the collecting box (27); rotating rings (46) are rotatably mounted on both sides of the rotating roller (23) on the outside of the rotating shaft (20); a U-shaped rod (47) is fixedly mounted between the two rotating rings (46); a second brush strip (48) is fixedly mounted on the outside of the U-shaped rod (47); the second brush strip (48) and the first brush strip (24) are interlaced with each other; The impact mechanism comprises a third magnet (37) fixedly mounted inside the right roller (17); a water guide pipe (39) is mounted at the rear end of the first nozzle (38); a compression section (40) is arranged inside the first nozzle (38); both inner walls of the nozzle of the first nozzle (38) are provided with slide grooves (41); a slider is slidably mounted between the two slide grooves (41); a fourth magnet (42) is fixedly mounted inside the slider; the fourth magnet (42) and the third magnet (37) attract each other; and a second sewage discharge pipe (44) is also fixedly mounted at the rear end of the housing (1).

2. A construction tunnel ventilation system according to claim 1, characterized in that: The reciprocating mechanism comprises two first magnets (25) respectively fixedly mounted at two ends of the rotating shaft (20), and second magnets (26) that attract each other with the first magnets (25) are fixedly mounted inside the two bar-shaped cavities (15), and the positions of the two second magnets (26) are staggered.

3. A construction tunnel ventilation system according to claim 1, characterized in that: A protective plate (18) is also fixedly mounted between two sides of the interior of the housing (1), and the upper and lower ends of the protective plate (18) are both close to the inner wall of the filter screen (13).

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