Noise reduction type air purifier

Abstract

The noise reduction type air purifier comprises a purifier shell, an air outlet cover plate is attached to the upper end of the purifier shell, and a first fixing plate is installed on the inner surface of the upper end of the purifier shell; a groove formed in the upper end of the first connecting plate is attached to the sealing plate, and the first connecting plate is installed at the upper end of the upper supporting plate; and the second connecting plate is mounted at the lower end of the upper supporting plate. According to the noise reduction type air purifier, a second connecting plate is arranged to be of a detachable structure, the whole filtering device can be detached and replaced, and an air outlet cover plate is arranged to be of a rotatable structure, so that the air outlet position can be adjusted according to use requirements; a plate-shaped structure installed at the lower end of a first adding plate wraps a noise reduction double-shaft motor for noise reduction, noise reduction is conducted again through a vacuum noise reduction plate, and a cleaning brush can be driven to rotate when air is guided in. The use height of the universal wheels can be adjusted along with movement of the driving plate, and the device can be directly pushed through the universal wheels.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, in particular to a noise reduction type air purifier. Background Art

[0002] As the name suggests, an air purifier is a device that purifies the air. It mainly filters out dust, pollen, formaldehyde, etc. in the air by adsorption, thereby effectively improving the cleanliness of the air. It is mainly divided into household, commercial and industrial types. Among the requirements for household air purifiers, the most important one is to meet certain noise reduction standards. Therefore, the noise reduction air purifiers on the market usually use noise reduction motors to drive the operation directly, which can effectively achieve the purpose of noise reduction.

[0003] Publication number: CN213480517U A household air purifier comprises a connecting base, the bottom of the connecting base is fixedly connected with an anti-skid pad, the top of the connecting base is fixedly connected with a purifier housing, a first air inlet is opened on one side of the connecting base, an air inlet pipe is fixedly connected on one side of the connecting base, a first dustproof net is fixedly connected to the inner wall of the air inlet pipe, a fan body is fixedly connected to the inner wall of the air inlet pipe, and a conveying air duct is fixedly connected to the inner wall of the air inlet pipe. Through the mutual cooperation of the purifier housing, the purification box housing, the second air inlet, the first air outlet, the slider, the filter, the fixed block, the connecting block and the adsorption plate, the purpose of facilitating the removal of the filter of the household air purifier is achieved, thereby solving the problem that the filter is not easy to remove in general household air purifiers, so that people can easily replace and clean the filter and the adsorption plate during long-term use of the air purifier, effectively improving the working efficiency of the household air purifier, further meeting people's use needs, and bringing convenience to people's lives.

[0004] However, there are also some problems in the use of the above air purifier. For example, the fan body is directly protruding and installed on the outside of the air purifier. At this time, because the fan is directly set outside the entire device and lacks relevant noise reduction measures, the noise during use is still relatively large, affecting the effect of home use. In addition, there is no device for cleaning the first filter, that is, the first filter is the filter that first contacts the air. At this time, the larger and more dust in the air are filtered through the first filter. Therefore, the first filter is very easy to be blocked. As the first filter is blocked, the air intake speed of the air purifier begins to decrease, thereby affecting the speed of air purification. A household air purifier with the publication number of CN207035342U comprises a casing, a negative ion generator, a water storage tank and an activated carbon filter, wherein a casing handle is fixedly installed on the upper end of the casing, and a supporting leg is provided at the bottom end of the casing, an air inlet is fixedly installed on one side of the casing, and a controller is fixedly installed on the other side of the casing, a fan is fixedly installed on one side of the air inlet, a fan switch is fixedly installed on the upper surface of the controller, a nozzle switch is fixedly installed above the fan switch, and an ultraviolet light switch is fixedly installed below the fan switch, and a temperature detector is fixedly installed on the upper surface of the casing. The novel household air purifier is provided with a temperature detector and a humidity detector, and can adjust the room according to the detected temperature and humidity to make the human body feel more comfortable, and the detection result can be displayed on a display screen. When the indoor humidity is not enough, the water in the water storage tank can be sprayed out through a nozzle fixedly installed at the bottom end of the water outlet pipe to increase the indoor humidity... However, there are also some problems in the use of the above-mentioned air purifier. For example, the above-mentioned device adopts an integrated fixed connection inside, so it is difficult to replace the internal filter structure during use, that is, the service life of the air purifier is very limited, and it is difficult to adjust the air outlet position of the above-mentioned device. That is, during use, if you want to adjust the air outlet direction, you need to rotate the heavier device as a whole, which is very inconvenient.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original air purifier. Summary of the invention

[0006] The object of the present invention is to provide a noise reduction air purifier to solve the problem that the above-mentioned background technology lacks relevant noise reduction measures and the noise during use is still relatively large, the first filter is very easy to be blocked, the air intake speed of the air purifier begins to decrease, it is difficult to replace the internal filter structure, and if you want to adjust the direction of the air outlet, you need to rotate the heavier device as a whole.

[0007] To achieve the above object, the present invention provides the following technical solution: a noise reduction air purifier, comprising a purifier housing, an air outlet cover plate attached to the upper end of the purifier housing, a first fixing plate installed on the inner surface of the upper end of the purifier housing, a negative ion generator installed on the inner surface of the purifier housing, and a sealing plate provided at the lower end of the negative ion generator; Also includes: A first connecting plate, a groove formed at an upper end of which is in contact with the sealing plate, and the first connecting plate is mounted on an upper end of an upper supporting plate, and the upper supporting plate is in contact with an inner surface of the purifier housing; A second connecting plate is mounted on the lower end of the upper supporting plate, and the second connecting plate is mounted on the upper end of the lower supporting plate, and the lower supporting plate and the inner surface of the purifier housing are in contact with each other; The second connecting plate has an inner surface provided with an antibacterial filter, an industrial filter, a high-density smoke removal carbon plate, a formaldehyde removal filter and a nano-purification filter in order from top to bottom; A first screw is connected to the second fixing plate through a threaded hole provided on the second fixing plate at the lower end of the lower support plate, and the first screw passes through the purifier housing; A second screw is provided through the left and right sides of the purifier housing, and the second screw is connected to the first mounting plate through a threaded hole provided on the plate-like structure at the lower end of the first mounting plate; A noise reduction dual-shaft motor is arranged on a plate-like structure arranged at the lower end of the first mounting plate, and an air guide impeller is installed on the output end rotating shaft at the upper end of the noise reduction dual-shaft motor; A second additional plate is attached to the lower end of the inner surface of the purifier housing, and a vacuum noise reduction plate is installed on the upper end of the second additional plate, and the vacuum noise reduction plate is installed on the lower end of the first additional plate; A support base, symmetrically arranged on the left and right sides of the lower surface of the second mounting plate; The second electric telescopic rod is installed at the middle position of the upper end of the first fixing plate, and the second electric telescopic rod is installed at the lower end of the pushing plate, and the upper end of the pushing plate and the lower end of the air outlet cover plate are in contact with each other.

[0008] Preferably, dense holes are provided in the middle of the upper support plate and the lower support plate, and the diameter of the holes on the upper support plate is larger than the diameter of the holes on the lower support plate. Through the above structure, it is convenient to assist in filtering impurities or dust in the air.

[0009] Preferably, a first bevel gear is installed on the rotating shaft at the lower output end of the noise reduction dual-axis motor, and second bevel gears are meshed on the left and right sides of the first bevel gear, and the diameter and number of teeth of the second bevel gear and the first bevel gear are set to be equal. Through the above structure, it is easy to ensure the consistency of the movement of the device.

[0010] Preferably, the second bevel gear is installed on the rotating shaft, and the rotating shaft forms a rotating mechanism with the vacuum noise reduction plate through a bearing installed on the vacuum noise reduction plate, and a vacuum groove is provided on the vacuum noise reduction plate. Through the above structure, it is convenient to support the rotating shaft without affecting the rotation of the rotating shaft.

[0011] Preferably, a cleaning brush is installed on the rotating shaft, and soft bristles are provided on the cleaning brush, and the soft bristles provided on the cleaning brush are in contact with the through holes opened at the lower end of the purifier shell. Through the above structure, it is convenient to clean the holes opened at the air inlet position by rotating the cleaning brush to avoid clogging of the holes.

[0012] Preferably, a positioning rod is provided through the plate-like structure at the lower end of the second additional mounting plate, and the positioning rod is snap-fitted with the purifier shell via a groove provided on the purifier shell, and the positioning rod is elastically connected with the plate-like structure at the lower end of the second additional mounting plate via a positioning spring installed at its upper end. Through the above structure, it is convenient to snap-fit ​​and fix the second additional mounting plate and the purifier shell through the positioning rod.

[0013] Preferably, two first electric telescopic rods are symmetrically arranged on the second additional plate, and the first electric telescopic rods are connected to the moving slider, and the moving slider is slidably connected to the second additional plate, and a rotating plate is rotatably installed on the moving slider, and the rotating plate is rotatably connected to the driving plate, and universal wheels are symmetrically arranged on the lower end of the driving plate. Through the above structure, the device can be pushed and moved under the action of the universal wheels, which makes it more convenient to move the device.

[0014] Preferably, a rotating roller is fitted in the square groove opened on the push plate, and the rotating roller is arranged at an equal angle on the lower end of the air outlet cover plate, and a square pull rod passes through the air outlet cover plate, and a pressing plate is installed at the lower end of the square pull rod. Through the above structure, the push plate can be auxiliary supported under the action of the rotating roller.

[0015] Preferably, the pressing plate is elastically connected to the air outlet cover plate by a pulling spring installed at its upper end, and the groove opened at the lower end of the pressing plate fits with the limiting rod, and the outer surface of the limiting rod is set to be smooth, and the limiting rod is installed at an equal angle in the groove opened on the push plate. Through the above structure, it is convenient to clamp and fix the air outlet cover plate through the pressing plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The noise reduction air purifier is provided with an upper support plate, a second connecting plate, a lower support plate, an antibacterial filter, an industrial filter, a high-density smoke removal carbon plate, a formaldehyde removal filter and a nano-purification filter. Various filter structures are installed on the inner surface of the second connecting plate, and the second connecting plate is set as a detachable structure. Therefore, the entire filter device can be disassembled and replaced after a period of use, which is more convenient and quick. Moreover, the air outlet cover plate is set as a rotatable structure. Therefore, the air outlet position can be adjusted according to the use requirements. At this time, it is no longer necessary to lift and rotate the entire device, which is more convenient and quick. (2) The noise reduction type air purifier is provided with a noise reduction dual-axis motor, an air guide impeller, a first bevel gear, a second bevel gear, a rotating shaft, a cleaning brush and a vacuum noise reduction plate. The noise reduction dual-axis motor is wrapped and noise-reduced by a plate-like structure installed at the lower end of the first mounting plate, and the noise is further reduced by the vacuum noise reduction plate to avoid large noise during use and affecting the use effect. At the same time, the cleaning brush can be driven to rotate during the process of introducing air, so that the through holes opened on the purifier shell can be brushed and cleaned, thereby avoiding the holes opened on the purifier shell from being blocked due to a lot of dust; (3) The noise reduction air purifier is provided with a second mounting plate, a positioning rod, a positioning spring, a first electric telescopic rod, a movable slider, a rotating plate, a driving plate and a universal wheel. The first electric telescopic rod can drive the rotating plate to rotate, thereby moving the driving plate up and down. The height of the universal wheel can be adjusted as the driving plate moves. When the device needs to be moved, the universal wheel can be used to directly push the device, avoiding the need for manual lifting and carrying. The device is more convenient and quick. The support base can be used to fix and support the entire device when it is not moving, thereby preventing it from moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front cross-sectional structure of the second connecting plate of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the air outlet cover plate of the present invention when viewed from above; Figure 3 It is a schematic diagram of the cross-sectional structure of the limiting rod of the present invention when viewed from above; Figure 4 This is a schematic diagram of the main cross-sectional structure of the push plate of the present invention; Figure 5 This is a schematic diagram of the main cross-sectional structure of the vacuum noise reduction plate of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the sealing plate of the present invention from top view; Figure 7 It is a schematic diagram of the top cross-sectional structure of the second bevel gear of the present invention; Figure 8is a schematic diagram of a top cross-sectional structure of a second connecting plate of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional cross-sectional structure of the second connecting plate of the present invention.

[0018] In the figure: 1. Purifier housing; 2. Air outlet cover; 3. First fixing plate; 4. Negative ion generator; 5. Sealing plate; 6. First connecting plate; 7. Upper support plate; 8. Second connecting plate; 9. Lower support plate; 10. Antibacterial filter; 11. Industrial filter; 12. High-density smoke removal carbon plate; 13. Formaldehyde removal filter; 14. Nano purification filter; 15. First screw; 16. Second fixing plate; 17. Second screw; 18. First additional plate; 19. Noise reduction dual-axis motor; 20. Air guide impeller ; 21. first bevel gear; 22. second bevel gear; 23. rotating shaft; 24. cleaning brush; 25. second additional plate; 26. positioning rod; 27. positioning spring; 28. first electric telescopic rod; 29. ​​moving slider; 30. vacuum noise reduction plate; 31. rotating plate; 32. driving plate; 33. universal wheel; 34. supporting base; 35. second electric telescopic rod; 36. pushing plate; 37. rotating roller; 38. limiting rod; 39. square pull rod; 40. pulling spring; 41. pressing plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 9The present invention provides a technical solution: a noise reduction type air purifier, comprising a purifier housing 1, an air outlet cover plate 2 is attached to the upper end of the purifier housing 1, and a first fixing plate 3 is installed on the inner surface of the upper end of the purifier housing 1, and a negative ion generator 4 is installed on the inner surface of the purifier housing 1, and a sealing plate 5 is provided at the lower end of the negative ion generator 4; a first connecting plate 6, a groove on the upper end of which is in contact with the sealing plate 5, and the first connecting plate 6 is installed on the upper end of an upper support plate 7, and the upper support plate 7 and the inner surface of the purifier housing 1 are in contact with each other; a second connecting plate 8 is installed on the lower end of the upper support plate 7, and the second connecting plate 8 is installed on the lower support plate 9 The upper end, and the lower support plate 9 and the inner surface of the purifier housing 1 are mutually attached; the second connecting plate 8, the inner surface of which is sequentially provided with an antibacterial filter 10, an industrial filter 11, a high-density smoke removal carbon plate 12, a formaldehyde removal filter 13 and a nano-purification filter 14 from top to bottom; the first screw 15 is connected to the second fixing plate 16 through the threaded hole opened on the second fixing plate 16 at the lower end of the lower support plate 9, and the first screw 15 passes through the purifier housing 1; the middle position of the upper support plate 7 and the lower support plate 9 is provided with dense holes, and the diameter of the holes opened on the upper support plate 7 is larger than the diameter of the holes opened on the lower support plate 9; The air introduced by the guide impeller 20 is filtered through the lower support plate 9, because the second connecting plate 8 is installed on the upper end of the lower support plate 9, and the antibacterial filter 10, the industrial filter 11, the high-density smoke removal carbon plate 12, the formaldehyde removal filter 13 and the nano-purification filter 14 are installed on the inner surface of the second connecting plate 8, which can filter the dust, pollen and formaldehyde in the air in turn (the antibacterial filter 10, the industrial filter 11, the high-density smoke removal carbon plate 12, the formaldehyde removal filter 13 and the nano-purification filter 14 are all internal filtering devices of the existing air purifier), and then the filtered air enters the negative ion generator 4 through the through hole opened at the upper end of the upper support plate 7, and then a negative ion wind flow can be formed to purify the air, and then the purified air is discharged through the through hole opened on the first fixing plate 3 and the groove opened on the air outlet cover plate 2; The second screw 17 is set through the left and right sides of the purifier housing 1, and the second screw 17 is connected to the first mounting plate 18 through the threaded hole opened on the plate-like structure at the lower end of the first mounting plate 18; the noise reduction dual-axis motor 19 is set on the plate-like structure set at the lower end of the first mounting plate 18, and the wind guide impeller 20 is installed on the output end shaft of the upper end of the noise reduction dual-axis motor 19; the second mounting plate 25 is mutually fitted with the lower end of the inner surface of the purifier housing 1, and the upper end of the second mounting plate 25 is equipped with a vacuum noise reduction Plate 30, and the vacuum noise reduction plate 30 is installed at the lower end of the first additional plate 18; the support base 34 is symmetrically arranged on the left and right sides of the lower surface of the second additional plate 25; a first bevel gear 21 is installed on the lower output end shaft of the noise reduction dual-axis motor 19, and the left and right sides of the first bevel gear 21 are meshed with second bevel gears 22, and the diameter and number of teeth of the second bevel gear 22 and the first bevel gear 21 are set equal; the second bevel gear 22 is installed on the rotating shaft 23, and the rotating shaft 23 passes through the vacuum noise reduction plate 30 The installed bearing and the vacuum noise reduction plate 30 form a rotating mechanism, and a vacuum groove is provided on the vacuum noise reduction plate 30; a cleaning brush 24 is installed on the rotating shaft 23, and soft bristles are provided on the cleaning brush 24, and the soft bristles provided on the cleaning brush 24 fit with the through holes provided at the lower end of the purifier housing 1; a positioning rod 26 is provided through the plate-like structure at the lower end of the second additional plate 25, and the positioning rod 26 is engaged with the purifier housing 1 through the groove provided on the purifier housing 1, and the positioning rod 26 is connected ... purifier housing 1, and the positioning rod 26 is connected with the purifier housing 1 through the purifier housing 1, and the positioning rod 26 is connected with the purifier housing 1 through the purifier housing 1, and the positioning rod 26 is connected The positioning rod 26 is elastically connected to the plate-like structure at the lower end of the second additional plate 25 through a positioning spring 27 installed at its upper end; two first electric telescopic rods 28 are symmetrically arranged on the second additional plate 25, and the first electric telescopic rods 28 are connected to the moving slider 29, and the moving slider 29 is slidably connected to the second additional plate 25, and a rotating plate 31 is rotatably installed on the moving slider 29, and the rotating plate 31 is rotatably connected to the driving plate 32, and the lower end of the driving plate 32 is symmetrically provided with universal wheels 33; When it is necessary to introduce wind into the purifier housing 1, the noise reduction dual-axis motor 19 starts to work, because the noise reduction dual-axis motor 19 is interconnected with the first additional plate 18 through an externally arranged plate-like structure, and under the action of the vacuum noise reduction plate 30, the purpose of sound insulation and noise reduction of the noise reduction dual-axis motor 19 can be achieved, thereby making the noise reduction effect of the device better. At this time, the output end shaft of the noise reduction dual-axis motor 19 is connected to the guide air impeller 20, and the guide air impeller 20 starts to rotate. As the guide air impeller 20 rotates, the external air enters the purifier housing 1 through the through holes opened on the left and right sides of the purifier housing 1. At the same time, a first bevel gear 21 is installed on the lower output end shaft of the noise reduction dual-axis motor 19. At this time, the first bevel gear 21 starts to rotate, and because the first bevel gear 21 is meshed with the second bevel gear 22, the second bevel gear 22 starts to rotate. As the second bevel gear 22 rotates, the rotating shaft 23 interconnected with the second bevel gear 22 also starts to rotate, that is, the cleaning brush 24 installed on the rotating shaft 23 also starts to rotate. As the cleaning brush 24 rotates, the holes on the left and right sides of the purifier housing 1 can be brushed and cleaned to prevent impurities or dust in the air from clogging the holes on the purifier housing 1. When the purifier housing 1 needs to be moved, the first electric telescopic rod 28 starts to work. At this time, the first electric telescopic rod 28 starts to push the moving slider 29, that is, the moving slider 29 starts to move, and the rotating plate 31 starts to rotate. As the rotating plate 31 rotates, the driving plate 32 starts to move downward until the universal wheel 33 installed at the lower end of the driving plate 32 contacts the ground and the supporting base 34 no longer contacts the ground. At this time, the purifier housing 1 can be pushed and moved; The second electric telescopic rod 35 is installed at the middle position of the upper end of the first fixed plate 3, and the second electric telescopic rod 35 is installed at the lower end of the push plate 36, and the upper end of the push plate 36 is fitted with the lower end of the air outlet cover plate 2; a rotating roller 37 is fitted in the square groove opened on the push plate 36, and the rotating roller 37 is arranged at an equal angle at the lower end of the air outlet cover plate 2, and a square pull rod 39 runs through the air outlet cover plate 2, and a pressing plate 41 is installed at the lower end of the square pull rod 39; the pressing plate 41 is elastically connected to the air outlet cover plate 2 through a pulling spring 40 installed at its upper end, and the groove opened at the lower end of the pressing plate 41 is fitted with the limiting rod 38, and the outer surface of the limiting rod 38 is set to be smooth, and the limiting rod 38 is installed at an equal angle in the groove opened on the push plate 36; When the air outlet direction needs to be adjusted, the second electric telescopic rod 35 starts to work, because a pushing plate 36 is installed on the upper end of the second electric telescopic rod 35, and the pushing plate 36 starts to drive the air outlet cover plate 2 to move upward, and the air outlet cover plate 2 starts to move in the direction away from the purifier housing 1, until the through groove provided on the air outlet cover plate 2 is exposed away from the purifier housing 1, and then the square pull rod 39 is pulled, and the square pull rod 39 starts to slide in the square groove provided on the air outlet cover plate 2, that is, the square pull rod 39 starts to drive the pressing plate 41 to move upward, and the pulling spring 40 installed on the pressing plate 41 starts to be squeezed and deformed, and the groove provided at the lower end of the pressing plate 41 is no longer in contact with the limiting rod 38, and then the air outlet cover plate 2 can be rotated, and the direction of the through groove provided on the air outlet cover plate 2 can be adjusted, so as to achieve the purpose of adjusting the air outlet direction; When it is necessary to disassemble and replace the antibacterial filter 10, the industrial filter 11, the high-density smoke removal carbon plate 12, the formaldehyde removal filter 13 and the nano-purification filter 14, the second screw 17 is rotated to make the second screw 17 start to move away from the purifier housing 1 until the second screw 17 is no longer connected to the threaded hole opened on the first mounting plate 18, and then the positioning rod 26 is pulled. At this time, the positioning rod 26 starts to move away from the second mounting plate 25, and the positioning spring 27 installed on the positioning rod 26 begins to be stretched and deformed until the positioning rod 26 is no longer in contact with the groove opened on the purifier housing 1. At this time, the purifier can be removed. Move the second additional plate 25 away from the purifier housing 1. At this time, the first additional plate 18 can be removed, and then the first screw 15 is rotated until the first screw 15 is no longer connected to the threaded hole opened on the second fixing plate 16. At this time, the lower support plate 9 can be pulled downward. At this time, the lower support plate 9 begins to drive the second connecting plate 8 and the upper support plate 7 to be pulled downward until the upper support plate 7, the second connecting plate 8, the lower support plate 9, the antibacterial filter 10, the industrial filter 11, the high-density smoke removal carbon plate 12, the formaldehyde removal filter 13 and the nano purification filter 14 are all taken out. At this time, the filter device can be replaced.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction air purifier, comprising a purifier housing (1), an air outlet cover plate (2) being attached to the upper end of the purifier housing, a first fixing plate (3) being mounted on the inner surface of the upper end of the purifier housing (1), a negative ion generator (4) being mounted on the inner surface of the purifier housing (1), and a sealing plate (5) being arranged at the lower end of the negative ion generator (4); It is characterized in that Also includes: A first connecting plate (6), the groove formed at the upper end of which is in contact with the sealing plate (5), the first connecting plate (6) is mounted on the upper end of the upper supporting plate (7), and the upper supporting plate (7) is in contact with the inner surface of the purifier housing (1); A second connecting plate (8) is mounted on the lower end of the upper supporting plate (7), and the second connecting plate (8) is mounted on the upper end of the lower supporting plate (9), and the lower supporting plate (9) and the inner surface of the purifier housing (1) are in contact with each other; A second connecting plate (8), the inner surface of which is provided with an antibacterial filter (10), an industrial filter (11), a high-density smoke removal carbon plate (12), a formaldehyde removal filter (13) and a nano-purification filter (14) in order from top to bottom; A first screw (15) is connected to the second fixing plate (16) through a threaded hole provided on the second fixing plate (16) at the lower end of the lower support plate (9), and the first screw (15) passes through the purifier housing (1); A second screw (17) is provided through the left and right sides of the purifier housing (1), and the second screw (17) is connected to the first mounting plate (18) through a threaded hole provided on the plate-like structure at the lower end of the first mounting plate (18); A noise-reducing dual-shaft motor (19) is arranged on a plate-shaped structure arranged at the lower end of the first mounting plate (18), and an air guide impeller (20) is installed on the output end rotating shaft at the upper end of the noise-reducing dual-shaft motor (19); A second additional plate (25) is in contact with the lower end of the inner surface of the purifier housing (1), and a vacuum noise reduction plate (30) is installed on the upper end of the second additional plate (25), and the vacuum noise reduction plate (30) is installed on the lower end of the first additional plate (18); A support base (34) symmetrically arranged on the left and right sides of the lower surface of the second mounting plate (25); The second electric telescopic rod (35) is mounted at a middle position of the upper end of the first fixing plate (3), and the second electric telescopic rod (35) is mounted at the lower end of the pushing plate (36), and the upper end of the pushing plate (36) and the lower end of the air outlet cover plate (2) are in contact with each other.

2. A noise reduction air purifier according to claim 1, characterized in that: Densely penetrated holes are provided between the middle positions of the upper support plate (7) and the lower support plate (9), and the diameter of the holes provided on the upper support plate (7) is greater than the diameter of the holes provided on the lower support plate (9).

3. A noise reduction air purifier according to claim 1, characterized in that: A first bevel gear (21) is mounted on the lower output end rotating shaft of the noise reduction dual-shaft motor (19), and second bevel gears (22) are meshed on the left and right sides of the first bevel gear (21), and the diameter and number of teeth of the second bevel gear (22) and the first bevel gear (21) are set to be equal.

4. A noise reduction air purifier according to claim 3, characterized in that: The second bevel gear (22) is mounted on the rotating shaft (23), and the rotating shaft (23) forms a rotating mechanism with the vacuum noise reduction plate (30) via a bearing mounted on the vacuum noise reduction plate (30), and a vacuum groove is provided on the vacuum noise reduction plate (30).

5. A noise reduction air purifier according to claim 4, characterized in that: A cleaning brush (24) is mounted on the rotating shaft (23), and soft bristles are arranged on the cleaning brush (24), and the soft bristles arranged on the cleaning brush (24) fit in with the through holes opened at the lower end of the purifier housing (1).

6. A noise reduction air purifier according to claim 1, characterized in that: A positioning rod (26) is provided through the plate-like structure at the lower end of the second additional plate (25), and the positioning rod (26) is snap-fitted to the purifier housing (1) via a groove provided on the purifier housing (1), and the positioning rod (26) is elastically connected to the plate-like structure at the lower end of the second additional plate (25) via a positioning spring (27) installed at its upper end.

7. A noise reduction air purifier according to claim 6, characterized in that: Two first electric telescopic rods (28) are symmetrically arranged on the second mounting plate (25), and the first electric telescopic rods (28) are connected to a movable slider (29), and the movable slider (29) is slidably connected to the second mounting plate (25), and a rotating plate (31) is rotatably mounted on the movable slider (29), and the rotating plate (31) is rotatably connected to a driving plate (32), and universal wheels (33) are symmetrically arranged at the lower end of the driving plate (32).

8. The noise reduction air purifier according to claim 1, characterized in that: A rotating roller (37) is fitted into a square groove formed on the push plate (36), and the rotating roller (37) is arranged at an equal angle on the lower end of the air outlet cover plate (2). A square pull rod (39) passes through the air outlet cover plate (2), and a pressing plate (41) is installed at the lower end of the square pull rod (39).

9. A noise reduction air purifier according to claim 8, characterized in that: The pressing plate (41) is elastically connected to the air outlet cover plate (2) via a pulling spring (40) installed at its upper end, and a groove formed at the lower end of the pressing plate (41) fits with the limiting rod (38), and the outer surface of the limiting rod (38) is set to be smooth, while the limiting rod (38) is installed at an equal angle in the groove formed on the pushing plate (36).

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