Noise reduction ventilation equipment

Abstract

The present invention belongs to the field of factory ventilation, specifically a noise reduction ventilation device, including a first pipe, an exhaust fan is arranged on the inner wall of the first pipe, a second protective net is fixedly connected to the inner wall of the first pipe and located below the exhaust fan, the second pipe is fixedly connected to the top of the first pipe, one end of the second pipe is fixedly connected to the first protective net, and the outer wall of the first protective net is rotatably connected to the first rotating rod; the present invention provides a noise reduction ventilation device, which reduces the air circulation range by installing two arc-shaped first guide plates, and is convenient for improving the effect of spraying and dust reduction, and accumulates water at the angle between the second guide plate and the first pipe and in the trapezoidal groove, so that the air flowing downward can contact with water multiple times, thereby absorbing dust in the air, and the position of the first clamping plate can be adjusted by rotating the protrusion, and the second pipe can be installed on the reserved ventilation openings of the factory with different calibers by adjusting the opening distance of the four first clamping plates.

Description

Technical Field

[0001] The invention belongs to the field of factory ventilation, in particular to a noise reduction ventilation device. Background Art

[0002] Most of the existing ventilation equipment are equipped with a dust reduction mechanism, which absorbs dust by spraying water to make the dust fall as soon as possible, so as to purify the air extracted from the factory and prevent the dust from being discharged into the outside and polluting the environment. However, since the inner diameter of the ventilation duct is generally large, the dust absorption effect is poor if it is directly sprayed thereon, and since different styles of ventilation equipment have different sizes, the ventilation equipment is difficult to be installed on the reserved exhaust vents of the factory, which causes great trouble to the ventilation of the factory. For this reason, the present invention provides a noise reduction ventilation equipment. Summary of the invention

[0003] In order to make up for the shortcomings of the prior art and solve the problem that the inner diameter of the ventilation duct is generally large, the dust adsorption effect is poor when spraying it directly, and the ventilation equipment of different styles has different sizes and is difficult to be installed on the reserved exhaust vents of the factory, which causes great trouble to the ventilation of the factory, the present invention proposes a noise reduction ventilation equipment.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a noise reduction ventilation device described in the present invention comprises a first pipe, an exhaust fan is provided on the inner wall of the first pipe, a second protective net is fixedly connected to the inner wall of the first pipe and located below the exhaust fan, a second pipe is fixedly connected to the top of the first pipe, one end of the second pipe is fixedly connected to the first protective net, the outer wall of the first protective net is rotatably connected to a first rotating rod, the outer wall of the first rotating rod is provided with an installation assembly, the inner wall of the first rotating rod is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to the second rotating rod, the second rotating rod is slidably and rotatably connected to the second pipe, and the outer wall of the second rotating rod is provided with an adjustment assembly.

[0005] Preferably, two first guide plates are symmetrically fixedly connected to the inner wall of the first pipe, and nozzles are provided on the inner walls of the two first guide plates. Two second guide plates are symmetrically fixedly connected to the inner wall of the first pipe and located below the first guide plates, and guide blocks are fixedly connected to the tops of the two second guide plates. Two water pumps are symmetrically fixedly connected to the outer wall of the first pipe, and the output end of the water pump is connected to a water pipe, one end of the water pipe extends to the angle between the second guide plate and the first pipe, and the other end of the water pipe is connected to the nozzle, the two first guide plates and the two second guide plates are arranged in an arc shape, the guide block is arranged in a semicircular shape, and ventilation grooves are opened inside the guide block.

[0006] Preferably, a trapezoidal groove is provided on the top of the guide block, the trapezoidal groove is located between the two first guide plates, and two drainage grooves are symmetrically provided on the outer wall of the guide block.

[0007] Preferably, the inner walls of the two second guide plates are slidably connected with a slide plate, one end of the two slide plates passes through the first pipe and is fixedly connected with a connecting plate, the two slide plates are slidably connected to the first pipe, the inner walls of the two slide plates are fixedly connected with a rotating shaft, the outer walls of the two rotating shafts are rotatably connected with the first filter screen, the inner wall of the first pipe and the top of the slide plate are fixedly connected with a mounting block, the slide plate is slidably connected to the mounting block, the top of the mounting block is provided with an inclined surface, the inner wall of the first pipe and the bottom of the slide plate are fixedly connected with a baffle, the slide plate is slidably connected to the baffle, and the outer wall of the first pipe is provided with a driving component for use with the slide plate.

[0008] Preferably, one end of each of the two first filter screens is fixedly connected with a counterweight.

[0009] Preferably, the driving assembly includes a motor, which is fixedly mounted on the outer wall of the first pipe, and the output end of the motor extends to the interior of the first pipe and is fixedly connected to a gear, and the inner wall of the first pipe is symmetrically and slidingly connected to two racks with the gear as the center, and the two racks are both meshed with the gear, and the two racks are fixedly connected to two connecting plates respectively.

[0010] Preferably, a second filter is fixedly connected to the inner wall of the first pipe, the second filter is located above the exhaust fan, and a cleaning brush is provided at the bottom of one of the racks located below, and the cleaning brush is used in conjunction with the second filter.

[0011] Preferably, the adjustment assembly includes a tension spring, which is arranged inside the first rotating rod, one end of the tension spring is fixedly connected to the first rotating rod, and the other end of the tension spring is fixedly connected to the sliding rod, the outer wall of the second pipe is equidistantly fixedly connected with a clamping block, one side of the clamping block is set as an arc surface, and the other side of the clamping block is set as a straight surface, the outer wall of the second rotating rod is fixedly connected to a limiting plate, and the outer wall of the limiting plate is provided with a clamping groove for cooperating with the clamping block, one end of the second rotating rod is symmetrically fixedly connected to two limiting shafts, and the two limiting shafts are both slidably connected to the first rotating rod.

[0012] Preferably, the mounting assembly includes four protrusions, and the four protrusions are fixedly installed on the outer wall of the first rotating rod at equal intervals. The outer walls of the four protrusions are all set to inclined surfaces. The inner wall of the second pipe is slidably connected with a sliding shaft at equal intervals. One end of the sliding shaft is fixedly connected to a limiting block, and the limiting block is set to a sphere. The protrusions are used in conjunction with the limiting block. The other end of the sliding shaft is fixedly connected to a first splint, and the outer wall of the sliding shaft is sleeved with a spring.

[0013] Preferably, a second clamping plate is arranged above the first clamping plate, a rubber pad is arranged on the outer wall of the second clamping plate, and a damper is arranged between the first clamping plate and the second clamping plate.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The noise reduction ventilation equipment described in the present invention forms a narrower channel in the first pipe by installing two arc-shaped first guide plates with the cooperation of two outer convex surfaces. After the outside air enters the first pipe, it circulates in this narrower channel, which narrows the air circulation range and facilitates the improvement of the spray dust reduction effect. Moreover, through the cooperation of the guide block and the second guide plate, the air penetration speed is slowed down, so that the air stays in the first pipe for a longer time.

[0016] 2. The noise reduction ventilation device described in the present invention accumulates water at the angle between the second guide plate and the first pipe, and accumulates water in the trapezoidal groove, so that the air flowing downward can contact with the water multiple times, thereby absorbing dust in the air.

[0017] 3. The noise reduction ventilation equipment described in the present invention can adjust the position of the first clamping plate by rotating the protrusion, and the second pipe can be installed on the reserved ventilation openings of the factory building with different calibers by adjusting the opening distance of the four first clamping plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 is a stereogram of the present invention;

[0020] Figure 2 is a front cross-sectional view of the present invention;

[0021] Figure 3 is a side cross-sectional view of the present invention;

[0022] Figure 4 The present invention Figure 2 The enlarged view of point A in the middle;

[0023] Figure 5 The present invention Figure 2 The enlarged view of point B in the middle;

[0024] Figure 6 The present invention Figure 2 Enlarged view of point C in the middle;

[0025] Figure 7 The present invention Figure 3 The enlarged view of point D in the middle;

[0026] Figure 8 It is an exploded view of the card block and the card slot of the present invention in cooperation with each other;

[0027] Fig. 9 It is a stereoscopic diagram of the slide plate of the present invention and the first filter screen in cooperation with each other;

[0028] In the figure: 1, first pipeline; 2, second pipeline; 3, first protection net; 4, first rotating rod; 5, sliding rod; 6, tension spring; 7, second rotating rod; 8, limit plate; 9, limit shaft; 10, sliding shaft; 11, spring; 12, limit block; 13, first clamping plate; 14, damper; 15, second clamping plate; 16, rubber pad; 17, bump; 18, clamp block; 19, clamping slot; 20, second protection net; 21, exhaust fan; 22. First guide plate; 23. Nozzle; 24. Second guide plate; 25. Guide block; 26. Trapezoidal groove; 27. Drain groove; 28. Ventilation groove; 29. ​​Slide plate; 30. Rotating shaft; 31. First filter; 32. Counterweight block; 33. Mounting block; 34. Baffle; 35. Motor; 36. Gear; 37. Rack; 38. Connecting plate; 39. Cleaning brush; 40. Second filter; 41. Water pump; 42. Water pipe. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] like Figures 1 to 9 As shown, the present invention provides a technical solution, a noise reduction ventilation device, comprising a first pipe 1, an inner wall of the first pipe 1 is provided with an exhaust fan 21, the inner wall of the first pipe 1 and below the exhaust fan 21 is fixedly connected with a second protective net 20, the top of the first pipe 1 is fixedly connected with a second pipe 2, one end of the second pipe 2 is fixedly connected with a first protective net 3, the outer wall of the first protective net 3 is rotatably connected with a first rotating rod 4, the outer wall of the first rotating rod 4 is provided with an installation assembly, the inner wall of the first rotating rod 4 is slidably connected with a sliding rod 5, one end of the sliding rod 5 is fixedly connected with a second rotating rod 7, the second rotating rod 7 is slidably and rotatably connected to the second pipe 2, and the outer wall of the second rotating rod 7 is provided with an adjustment assembly.

[0031] Through the above technical solution, the second pipe 2 is installed on the reserved ventilation port of the factory building by adjusting the assembly and cooperating with the installation assembly. The air inlet of the second pipe 2 is arranged in the factory building, and the first pipe 1 is arranged outside the factory building. By starting the exhaust fan 21, the original air in the factory building can be extracted to the outside, which is convenient for air circulation in the factory building. The inside of the second pipe 2 can be protected by installing the first protective net 3.

[0032] Specifically, two first guide plates 22 are symmetrically fixedly connected to the inner wall of the first pipe 1, and nozzles 23 are provided on the inner walls of the two first guide plates 22. Two second guide plates 24 are symmetrically fixedly connected to the inner wall of the first pipe 1 and located below the first guide plates 22. A guide block 25 is fixedly connected to the top of the two second guide plates 24. Two water pumps 41 are symmetrically fixedly connected to the outer wall of the first pipe 1. The output end of the water pump 41 is connected to a water pipe 42. One end of the water pipe 42 extends to the angle between the second guide plate 24 and the first pipe 1, and the other end of the water pipe 42 is connected to the nozzle 23. The two first guide plates 22 and the two second guide plates 24 are all arranged in an arc shape, the guide block 25 is arranged in a semicircular shape, and a ventilation groove 28 is opened inside the guide block 25.

[0033] Through the above technical solution, water is filled at the angle between the second guide plate 24 and the first pipe 1, and the water surface is located at one-half of the second guide plate 24. By installing two arc-shaped first guide plates 22, a narrower channel is formed in the first pipe 1 under the cooperation of the two outer convex surfaces. After the outside air enters the first pipe 1, it circulates in this narrower channel, which reduces the circulation range of the air. The water pump 41 is started to pump the water at the angle between the second guide plate 24 and the first pipe 1 along the water pipe 42 to the nozzle 23. The water is sprayed through the nozzle 23 to effectively reduce dust in the air, thereby preventing dust from being discharged to the outside with the air and affecting the air quality outside. The cooperation between the block 25 and the second guide plate 24 slows down the speed of air passing through, prolongs the residence time of the air in the first pipe 1, and the air passing through the two first guide plates 22 hits the guide block 25 and flows downward along the arc surface at the top of the guide block 25. Under the action of wind force, the air hits the water at the angle between the second guide plate 24 and the first pipe 1, thereby making the air and water further contact, and the water continues to absorb the remaining dust in the air, and then the air flows upward along the concave surface of the second guide plate 24. Under the obstruction of the bottom of the guide block 25, the air passes through the ventilation slot 28 and flows between the two second guide plates 24, and can continue to flow downward.

[0034] Specifically, a trapezoidal groove 26 is formed on the top of the guide block 25 , and the trapezoidal groove 26 is located between the two first guide plates 22 . Two drainage grooves 27 are symmetrically formed on the outer wall of the guide block 25 .

[0035] Through the above technical solution, the water falling after the nozzle 23 sprays accumulates in the trapezoidal groove 26 at the top of the guide block 25. When the air flows downward and hits the trapezoidal groove 26, it comes into contact with the water, and then further adsorbs the dust in the air, thereby having a good effect on the adsorption of dust in the air. As the nozzle 23 continues to spray, when the water level in the trapezoidal groove 26 is at the same horizontal plane as the top of the drainage groove 27, the water in the trapezoidal groove 26 is discharged along the drainage groove 27, and flows downward along the arc surface at the top of the guide block 25, and finally accumulates again at the angle between the second guide plate 24 and the first pipe 1, so that the water can be recycled.

[0036] Specifically, the inner walls of the two second guide plates 24 are slidably connected with a slide plate 29, one end of the two slide plates 29 passes through the first pipe 1 and is fixedly connected with a connecting plate 38, the two slide plates 29 are slidably connected to the first pipe 1, the inner walls of the two slide plates 29 are fixedly connected with a rotating shaft 30, the outer walls of the two rotating shafts 30 are rotatably connected with a first filter screen 31, the inner wall of the first pipe 1 and the top of the slide plate 29 are fixedly connected with a mounting block 33, the slide plate 29 is slidably connected to the mounting block 33, the top of the mounting block 33 is provided with an inclined surface, the inner wall of the first pipe 1 and the bottom of the slide plate 29 are fixedly connected with a baffle 34, the slide plate 29 is slidably connected to the baffle 34, and the outer wall of the first pipe 1 is provided with a driving component for use with the slide plate 29.

[0037] Through the above technical solution, the dust begins to settle after being dissolved in the water, and slides down along the inclined surface at the top of the mounting block 33, accumulating on the first filter screen 31. The slide plate 29 is moved back and forth left and right by the driving assembly. When the slide plate 29 moves toward the outside of the first pipe 1, the first filter screen 31 follows the movement. The mounting block 33 and the baffle 34 are provided to prevent water from overflowing the first pipe 1 while limiting the first filter screen 31, so that the first filter screen 31 is moved horizontally out of the first pipe 1. When the first filter screen 31 moves to the outside of the first pipe 1, the first filter screen 31 starts to rotate under the action of gravity, so as to discharge the mud formed by the mixture of dust and water. When the slide plate 29 moves toward the inside of the first pipe 1, the first filter screen 31 re-enters the first pipe 1 in a horizontal state under the squeezing of the outer wall of the first pipe 1.

[0038] Specifically, one end of each of the two first filter screens 31 is fixedly connected with a counterweight 32 .

[0039] Through the above technical solution, by installing a counterweight 32 at one end of the first filter 31, the rotation speed of the first filter 31 can be accelerated when the first filter 31 is moved out of the first pipe 1, thereby swinging to facilitate throwing off the mud formed by the mixture of dust and water.

[0040] Specifically, the driving assembly includes a motor 35, which is fixedly mounted on the outer wall of the first pipe 1. The output end of the motor 35 extends to the inside of the first pipe 1 and is fixedly connected to a gear 36. The inner wall of the first pipe 1 is symmetrically slidably connected to two racks 37 with the gear 36 as the center. The two racks 37 are both meshed with the gear 36, and the two racks 37 are fixedly connected to two connecting plates 38 respectively.

[0041] Through the above technical solution, the motor 35 is started to drive the gear 36 to rotate, so that the two racks 37 move in opposite directions at the same time. The motor 35 controls the gear 36 to rotate counterclockwise and then clockwise, so that the two racks 37 can move back and forth left and right at the same time, driving the two connecting plates 38 to move back and forth left and right at the same time, so that the two slides 29 can move back and forth left and right at the same time.

[0042] Specifically, the inner wall of the first pipe 1 is fixedly connected with the second filter 40 , the second filter 40 is located above the exhaust fan 21 , and a cleaning brush 39 is provided at the bottom of a rack 37 located below, and the cleaning brush 39 is used in conjunction with the second filter 40 .

[0043] Through the above technical solution, the air passing through the two second guide plates 24 is filtered in the final step through the second filter 40 to improve the air purification effect. The rack 37 located below moves back and forth left and right while driving the cleaning brush 39 to move back and forth left and right. The cleaning brush 39 continuously cleans the second filter 40, effectively preventing the second filter 40 from being blocked by dust, thereby improving the operating quality of the ventilation equipment.

[0044] Specifically, the adjustment component includes a tension spring 6, which is arranged inside the first rotating rod 4, one end of the tension spring 6 is fixedly connected to the first rotating rod 4, and the other end of the tension spring 6 is fixedly connected to the sliding rod 5. The outer wall of the second pipe 2 is equidistantly fixedly connected with a clamping block 18, one side of the clamping block 18 is set as an arc surface, and the other side of the clamping block 18 is set as a straight surface. The outer wall of the second rotating rod 7 is fixedly connected to a limiting plate 8, and the outer wall of the limiting plate 8 is provided with a clamping groove 19 used to cooperate with the clamping block 18. One end of the second rotating rod 7 is symmetrically fixedly connected to two limiting shafts 9, and the two limiting shafts 9 are both slidably connected to the first rotating rod 4.

[0045] When the second pipe 2 is installed, the second pipe 2 is placed at the reserved ventilation opening of the factory building, and the second rotating rod 7 is rotated clockwise. At this time, the inner concave surface of the slot 19 is pressed against the arc surface of the block 18. Under the push of the arc surface of the block 18, the limit plate 8 moves to one side and is fed back to the second rotating rod 7, so that the second rotating rod 7 moves to one side. The movement of the second rotating rod 7 drives the sliding rod 5 to move, and the tension spring 6 is pulled. After the installation of the second pipe 2 is completed, the second rotating rod 7 is released. Under the tension of the tension spring 6, the block 18 enters the slot 19. Since the other side of the block 18 is set as a straight surface, the other side of the block 18 is pressed against the inner concave surface of the slot 19, which effectively prevents the second rotating rod 7 from rotating counterclockwise. When the ventilation equipment needs to be removed, the second rotating rod 7 can be pulled to move the block 18 out of the slot 19. At this time, the second rotating rod 7 can be rotated counterclockwise.

[0046] Specifically, the mounting assembly includes four protrusions 17, and the four protrusions 17 are equidistantly fixedly installed on the outer wall of the first rotating rod 4. The outer walls of the four protrusions 17 are all set to inclined surfaces. The inner wall of the second pipe 2 is equidistantly slidably connected with a sliding shaft 10. One end of the sliding shaft 10 is fixedly connected to a limiting block 12. The limiting block 12 is set to a sphere. The protrusions 17 are used in conjunction with the limiting block 12. The other end of the sliding shaft 10 is fixedly connected to a first clamping plate 13. The outer wall of the sliding shaft 10 is sleeved with a spring 11.

[0047] Through the above technical scheme, when installing the second pipe 2, the second pipe 2 is placed at the reserved vent of the factory building, and the second rotating rod 7 is rotated clockwise. Under the action of the limit shaft 9, the first rotating rod 4 is driven to rotate, so that the four protrusions 17 are rotated. At this time, the inclined surfaces of the four protrusions 17 are respectively pressed against the four limit blocks 12. With the rotation of the second rotating rod 7, the inclined surfaces of the four protrusions 17 push the four sliding shafts 10 to move to the outside of the second pipe 2, thereby opening the four sliding shafts 10, driving the four first clamps 13 to open, so that the four first clamps 13 are pressed against the inner wall of the reserved vent of the factory building at the same time, so that the second pipe 2 is fixed on the reserved vent of the factory building, and the installer can use sealing putty to fill the gap at the connection between the second pipe 2 and the reserved vent of the factory building.

[0048] Specifically, a second clamping plate 15 is disposed above the first clamping plate 13 , a rubber pad 16 is disposed on an outer wall of the second clamping plate 15 , and a damper 14 is disposed between the first clamping plate 13 and the second clamping plate 15 .

[0049] Through the above technical solution, the damper 14 and the rubber pad 16 are provided to achieve a shock-absorbing effect on the connection between the second pipe 2 and the reserved ventilation opening of the factory building. By shock-absorbing the second pipe 2, the noise during the use of the ventilation equipment is reduced, thereby improving the environmental quality of the factory building.

[0050] When in use, when installing the second pipe 2, place the second pipe 2 at the reserved vent of the factory building, the air inlet of the second pipe 2 is set in the factory building, and the first pipe 1 is set outside the factory building. The second rotating rod 7 is rotated clockwise. At this time, the inner concave surface of the card slot 19 is pressed against the arc surface of the card block 18. Under the push of the arc surface of the card block 18, the limit plate 8 moves to one side and is fed back to the second rotating rod 7, so that the second rotating rod 7 moves to one side. While the second rotating rod 7 rotates, the first rotating rod 4 is driven to rotate under the action of the limit shaft 9, so that the four protrusions 17 rotate. At this time, the inclined surfaces of the four protrusions 17 are pressed against the four limit blocks 12 respectively. As the second rotating rod 7 rotates, the inclined surfaces of the four protrusions 17 push the four sliding shafts 10 to move to the outside of the second pipe 2, thereby making the four The sliding shaft 10 opens, driving the four first clamping plates 13 to open, so that the four first clamping plates 13 simultaneously press against the inner wall of the reserved ventilation opening of the factory building, so that the second pipe 2 is fixed on the reserved ventilation opening of the factory building, and the installer can use sealing putty to fill the gap at the connection between the second pipe 2 and the reserved ventilation opening of the factory building. After the second pipe 2 is installed, the second rotating rod 7 is loosened, and the clamping block 18 enters the clamping groove 19 under the tension of the tension spring 6. Since the other side of the clamping block 18 is set as a straight surface, the other side of the clamping block 18 presses against the inner concave surface of the clamping groove 19, effectively preventing the second rotating rod 7 from rotating counterclockwise, so that the second pipe 2 is firmly installed, and the damper 14 and rubber pad 16 are provided to reduce the shock of the connection between the second pipe 2 and the reserved ventilation opening of the factory building. The vibration reduction of the second pipe 2 reduces the noise of the ventilation equipment when in use, and improves the environmental quality of the factory. When the ventilation equipment needs to be removed, the second rotating rod 7 can be pulled to move, so that the block 18 is disengaged from the slot 19. At this time, the second rotating rod 7 can be rotated counterclockwise to drive the four protrusions 17 to move back. After the extrusion of the protrusions 17 is lost, the first clamping plate 13 is reset under the action of the spring 11, and the exhaust fan 21 is started to draw the original air of the factory into the second pipe 2. The air flows along the second pipe 2 to the first pipe 1. Water is filled in the angle between the second guide plate 24 and the first pipe 1, and the water surface is located at half of the second guide plate 24. By installing two arc-shaped first guide plates 22, under the cooperation of the two outer convex surfaces, in the first A narrow channel is formed in the pipe 1. After the outside air enters the first pipe 1, it circulates in this narrow channel, which reduces the circulation range of the air. The water pump 41 is started to pump the water at the angle between the second guide plate 24 and the first pipe 1 along the water pipe 42 to the nozzle 23. The nozzle 23 sprays water to effectively reduce dust in the air, preventing dust from being discharged to the outside with the air and affecting the air quality outside. The cooperation between the guide block 25 and the second guide plate 24 slows down the speed of air passing through, prolonging the residence time of the air in the first pipe 1. The water dropped by the nozzle 23 after spraying accumulates in the trapezoidal groove 26 at the top of the guide block 25. When the air circulates downward and hits the trapezoidal groove 26, it contacts with the water, thereby further absorbing the dust in the air.Thus, the dust in the air is adsorbed effectively, and then the air flows downward along the arc surface at the top of the guide block 25. Under the action of wind force, the air hits the water at the angle between the second guide plate 24 and the first pipe 1, so that the air and the water are further contacted, and the remaining dust in the air is continuously adsorbed by the water. Then, the air flows upward along the concave surface of the second guide plate 24. Under the obstruction of the bottom of the guide block 25, the air passes through the ventilation slot 28 and flows between the two second guide plates 24, and can continue to flow downward. With the continuous spraying of the nozzle 23, the water level in the trapezoidal slot 26 is equal to the drainage hole 26. When the grooves 27 are on the same horizontal plane, the water in the trapezoidal grooves 26 is discharged along the drainage grooves 27, and flows downward along the arc surface at the top of the guide block 25, and finally accumulates again at the angle between the second guide plate 24 and the first pipe 1, so that the water can be recycled. After the dust melts into the water, it begins to settle and slides down along the inclined surface at the top of the mounting block 33, accumulating on the first filter screen 31, and the motor 35 is started to drive the gear 36 to rotate, so that the two racks 37 move in the opposite direction at the same time. The motor 35 controls the gear 36 to rotate counterclockwise and then clockwise, so that the two racks 37 can move back and forth left and right at the same time, driving The two connecting plates 38 move back and forth left and right at the same time, so that the two sliding plates 29 move back and forth left and right at the same time. When the sliding plate 29 moves toward the outside of the first pipe 1, the first filter screen 31 moves with it. The installation block 33 and the baffle plate 34 are provided to prevent water from overflowing the first pipe 1 and limit the first filter screen 31 at the same time, so that the first filter screen 31 moves horizontally out of the first pipe 1. When the first filter screen 31 moves to the outside of the first pipe 1, a counterweight block 32 is installed at one end of the first filter screen 31. The rotation speed of the first filter screen 31 can be accelerated when the first filter screen 31 moves out of the first pipe 1, thereby swinging to facilitate The mud mixed with dust and water is thrown off. When the slide plate 29 moves toward the inside of the first pipe 1, the first filter 31 re-enters the first pipe 1 in a horizontal state under the pressure of the outer wall of the first pipe 1. The air passing through the two second guide plates 24 is filtered in the last step by the second filter 40 to improve the air purification effect. The rack 37 located below moves back and forth left and right while driving the cleaning brush 39 to move back and forth left and right. The cleaning brush 39 continuously cleans the second filter 40, effectively preventing the second filter 40 from being blocked by dust, thereby improving the operation quality of the ventilation equipment.

[0051] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, 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 so on.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A noise reduction ventilation device, characterized in that: The invention comprises a first pipeline (1), the inner wall of the first pipeline (1) is provided with an exhaust fan (21), the inner wall of the first pipeline (1) is fixedly connected to a second protection net (20) located below the exhaust fan (21), the top of the first pipeline (1) is fixedly connected to a second pipeline (2), one end of the second pipeline (2) is fixedly connected to a first protection net (3), the outer wall of the first protection net (3) is rotatably connected to a first rotating rod (4), the outer wall of the first rotating rod (4) is provided with a mounting assembly, the inner wall of the first rotating rod (4) is slidably connected to a sliding rod (5), one end of the sliding rod (5) is fixedly connected to a second rotating rod (7), the second rotating rod (7) is slidably and rotatably connected to the second pipeline (2), and the outer wall of the second rotating rod (7) is provided with an adjustment assembly; Two first guide plates (22) are symmetrically fixedly connected to the inner wall of the first pipe (1), and the inner walls of the two first guide plates (22) are both provided with a nozzle (23). Two second guide plates (24) are symmetrically fixedly connected to the inner wall of the first pipe (1) and located below the first guide plates (22), and a guide block (25) is fixedly connected to the top of the two second guide plates (24). Two water pumps (41) are symmetrically fixedly connected to the outer wall of the first pipe (1), and the output end of the water pump (41) is connected to a water pipe (42), one end of the water pipe (42) extends to the angle between the second guide plate (24) and the first pipe (1), and the other end of the water pipe (42) is connected to the nozzle (23). The two first guide plates (22) and the two second guide plates (24) are both arranged in an arc shape, and the guide block (25) is arranged in a semicircular shape, and a ventilation groove (28) is provided inside the guide block (25); The inner walls of the two second guide plates (24) are both slidably connected to a slide plate (29), one end of the two slide plates (29) passes through the first pipe (1) and is fixedly connected to a connecting plate (38), the two slide plates (29) are both slidably connected to the first pipe (1), the inner walls of the two slide plates (29) are both fixedly connected to a rotating shaft (30), the outer walls of the two rotating shafts (30) are both rotatably connected to a first filter screen (31), the inner wall of the first pipe (1) and the top of the slide plate (29) are fixedly connected to a mounting block (33), the slide plate (29) is slidably connected to the mounting block (33), the top of the mounting block (33) is provided with an inclined surface, the inner wall of the first pipe (1) and the bottom of the slide plate (29) are fixedly connected to a baffle plate (34), the slide plate (29) is slidably connected to the baffle plate (34), and the outer wall of the first pipe (1) is provided with a driving component used in conjunction with the slide plate (29); The driving assembly comprises a motor (35), the motor (35) being fixedly mounted on the outer wall of the first pipe (1), the output end of the motor (35) extending into the interior of the first pipe (1) and being fixedly connected to a gear (36), the inner wall of the first pipe (1) being symmetrically slidably connected to two racks (37) with the gear (36) as the center, the two racks (37) being meshingly connected to the gear (36), and the two racks (37) being fixedly connected to two connecting plates (38) respectively; The adjustment component comprises a tension spring (6), wherein the tension spring (6) is arranged inside the first rotating rod (4), one end of the tension spring (6) is fixedly connected to the first rotating rod (4), and the other end of the tension spring (6) is fixedly connected to the sliding rod (5); a clamping block (18) is fixedly connected to the outer wall of the second pipe (2) at equal intervals, one side of the clamping block (18) is arranged as an arc surface, and the other side of the clamping block (18) is arranged as a straight surface; the outer wall of the second rotating rod (7) is fixedly connected to a limiting plate (8), and the outer wall of the limiting plate (8) is provided with a clamping groove (19) used for matching with the clamping block (18); one end of the second rotating rod (7) is symmetrically fixedly connected to two limiting shafts (9), and the two limiting shafts (9) are both slidably connected to the first rotating rod (4); The mounting assembly comprises four protrusions (17), the four protrusions (17) being fixedly mounted on the outer wall of the first rotating rod (4) at equal intervals, the outer walls of the four protrusions (17) being all arranged as inclined surfaces, the inner wall of the second pipe (2) being slidably connected to a sliding shaft (10) at equal intervals, one end of the sliding shaft (10) being fixedly connected to a limit block (12), the limit block (12) being arranged in a spherical shape, the protrusions (17) being used in conjunction with the limit block (12), the other end of the sliding shaft (10) being fixedly connected to a first clamping plate (13), and the outer wall of the sliding shaft (10) being sleeved with a spring (11).

2. A noise reduction ventilation device according to claim 1, characterized in that: A trapezoidal groove (26) is provided on the top of the guide block (25), and the trapezoidal groove (26) is located between the two first guide plates (22). Two drainage grooves (27) are symmetrically provided on the outer wall of the guide block (25).

3. A noise reduction ventilation device according to claim 2, characterized in that: One end of each of the two first filter screens (31) is fixedly connected to a counterweight block (32).

4. A noise reduction ventilation device according to claim 3, characterized in that: A second filter screen (40) is fixedly connected to the inner wall of the first pipe (1); the second filter screen (40) is located above the exhaust fan (21); a cleaning brush (39) is provided at the bottom of one of the racks (37) located below; the cleaning brush (39) is used in conjunction with the second filter screen (40).

5. A noise reduction ventilation device according to claim 4, characterized in that: A second clamping plate (15) is arranged above the first clamping plate (13), a rubber pad (16) is arranged on the outer wall of the second clamping plate (15), and a damper (14) is arranged between the first clamping plate (13) and the second clamping plate (15).

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