Air purifier

Abstract

The application relates to an air purifier which comprises a shell, a seat body, a connecting plate, an air extractor, a mounting block, filter cotton and a scraper, the shell is provided with a containing cavity, the seat body is connected to the inner wall of the containing cavity and covers the downward opening of the containing cavity, the connecting plate is connected to the inner wall of the containing cavity, the connecting plate is provided with an air inlet, the air extractor is connected to the shell and arranged above the air inlet, the upper end of the shell is provided with an air outlet, the outer wall of the shell is provided with an air inlet hole, the height of the air inlet hole is smaller than the height of the connecting plate, the two ends of the filter cotton are coaxially and rotatably connected to the upper end of the seat body and the lower end of the connecting plate respectively, one end of the scraper is connected to the inner wall of the containing cavity, and the other end of the scraper abuts against the outer periphery of the filter cotton. The air extractor rotates to form a negative pressure in the containing cavity, air enters the containing cavity from the air inlet hole, enters the air inlet after being filtered by the filter cotton, and is discharged from the air outlet, the scraper cleans the sundries on the outer wall of the filter cotton, the replacement frequency of the filter cotton is reduced, and the working efficiency of the air purifier is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an air purifier. Background Technology

[0002] With the development of society, people are paying more and more attention to the air quality of their living environment, and air purifiers have emerged as a result. Air purifiers are products that can adsorb, decompose or transform various air pollutants (generally including PM2.5, dust, pollen, odors, formaldehyde and other decoration pollution, bacteria, allergens, etc.) to improve air cleanliness.

[0003] Air purifiers have filters to purify pollutants present in the air. Outside air drawn into the air purifier passes through the filters to remove pollutants, and the purified air is then discharged back to the outside.

[0004] In industrial production, air contains a large amount of dust, which may adversely affect the production results and the health of workers. Therefore, air purifiers are often needed.

[0005] However, the filter of an air purifier will absorb a lot of dust, which will reduce the filtration efficiency. It is necessary to remove and clean it or replace it with a replacement filter. In environments with high dust content, replacement is particularly frequent, which reduces the working efficiency of the air purifier. Summary of the Invention

[0006] In order to improve the working efficiency of air purifiers, this application provides an air purifier.

[0007] The air purifier provided in this application adopts the following technical solution:

[0008] An air purifier includes a housing, a base, a connecting plate, an exhaust fan, a mounting block, filter cotton, and a scraper. The housing has a receiving cavity. The base is connected to the inner wall of the receiving cavity and covers the downward-facing opening of the receiving cavity. The connecting plate is connected to the inner wall of the receiving cavity and has an air inlet. The exhaust fan is connected to the housing and positioned above the air inlet. The upper end of the housing has an air outlet. The outer wall of the housing has an air inlet hole, the height of which is less than the height of the connecting plate. The two ends of the filter cotton are coaxially rotatably connected to the upper end of the base and the lower end of the connecting plate, respectively. The inner diameter of the filter cotton is larger than the inner diameter of the air inlet. One end of the scraper is connected to the inner wall of the receiving cavity, and the other end of the scraper abuts against the outer periphery of the filter cotton.

[0009] By adopting the above technical solution, the exhaust fan rotates, creating negative pressure in the receiving cavity. Air enters the receiving cavity through the air inlet, is filtered by the filter cotton, enters the air inlet, and is discharged from the air outlet. The operation is simple. The scraper cleans the debris on the outer wall of the filter cotton, extending the service life of the filter cotton, reducing the frequency of filter cotton replacement, and improving the working efficiency of the air purifier.

[0010] Preferably, it further includes a first spring, one end of which is connected to the inner wall of the receiving cavity, and the other end of which is connected to the scraper.

[0011] By adopting the above technical solution, the first spring causes the scraper to press against the outer periphery of the filter cotton, thereby improving the scraping efficiency of the filter cotton's outer periphery, extending the service life of the filter cotton, reducing the frequency of filter replacement, and improving the working efficiency of the air purifier.

[0012] Preferably, the upper end of the base is provided with a dust collection groove, and the scraper is located above the dust collection groove.

[0013] By adopting the above technical solution, the dust collection trough can easily collect and clean the dust and debris scraped off by the scraper, reducing the probability of dust clogging the air inlet.

[0014] Preferably, it also includes a connecting block, which is connected to the lower end of the scraper. The lower end of the connecting block is provided with a limiting block, which is slidably embedded in the dust collection groove.

[0015] By adopting the above technical solution, the dust collection trough guides the sliding of the scraper, making the scraper stable in contact with the filter cotton.

[0016] Preferably, it also includes a pusher plate, which is slidably embedded in the dust collection groove, and the sliding direction of the pusher plate is along the radial direction of the base.

[0017] By adopting the above technical solution, the dust and debris scraped off by the scraper will accumulate on one side of the dust collection trough, which will easily lead to waste of space on the other side of the dust collection trough and increase the frequency of cleaning the dust collection trough. By pushing the pusher, the dust and debris on one side of the dust collection trough will be transferred to the other side, reducing the frequency of cleaning the dust collection trough.

[0018] Preferably, the dust collection groove extends radially along the base to communicate with the air inlet.

[0019] By adopting the above technical solution, the scraper directly discharges the dust and debris in the dust collection tank from the air inlet, eliminating the need for additional cleaning of the dust collection tank.

[0020] Preferably, it also includes a protrusion, one end of which is slidably connected to the filter cotton, the sliding direction of which is along the radial direction of the seat, and the other end of which is used to abut against the push plate.

[0021] By adopting the above technical solution, during the rotation of the filter cotton, the protrusion slides and pushes the push plate open. Every time it rotates once, the protrusion automatically cleans the dust collection tank, thus achieving automatic cleaning of the dust collection tank.

[0022] Preferably, it also includes a second spring, one end of which is connected to the filter cotton and the other end of which is connected to the protrusion.

[0023] By adopting the above technical solution, the rotation of the filter cotton generates centrifugal force, which throws the protrusions outward, thus pushing the push plate open. The operation is simple.

[0024] Preferably, it also includes a cleaning plate, which is slidably connected to the upper end of the base body. The end of the cleaning plate away from the axis of the base body is connected to a cleaning column, which is used to slide into the air inlet.

[0025] By adopting the above technical solution, the cleaning column continuously slides and embeds itself in the air inlet to clean the debris blocking the air inlet, so that the air inlet can continuously and stably intake air, thereby improving the working efficiency of the air purifier.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The exhaust fan rotates, creating negative pressure in the receiving cavity. Air enters the receiving cavity through the air inlet, passes through the filter cotton, enters the air inlet, and is discharged from the air outlet. It is easy to operate. The scraper cleans the debris on the outer wall of the filter cotton, extending the service life of the filter cotton, reducing the frequency of filter cotton replacement, and improving the working efficiency of the air purifier.

[0028] 2. Dust and debris scraped off by the scraper tend to accumulate on one side of the dust collection trough, which wastes space on the other side and increases the frequency of cleaning the dust collection trough. By pushing the pusher, the dust and debris on one side of the dust collection trough can be transferred to the other side, reducing the frequency of cleaning the dust collection trough.

[0029] 3. The cleaning column continuously slides and embeds itself in the air inlet to clear debris blocking the air inlet, allowing for a continuous, stable, and smooth intake of air, thus improving the working efficiency of the air purifier. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an air purifier.

[0031] Figure 2 This is a schematic diagram of the internal structure of an air purifier after it has been cut open.

[0032] Figure 3 It is a schematic diagram of the overall structure of the base, connecting plate, air duct, exhaust fan, hot air fan, filter assembly, drive assembly and cleaning assembly.

[0033] Figure 4 This is a schematic diagram of the internal structure of an air purifier after it has been cut open, mainly used to show the filter components and cleaning components.

[0034] Figure 5 yes Figure 3 Enlarged view of point A in the middle.

[0035] Figure 6 yes Figure 4 Enlarged view of point B in the middle.

[0036] Explanation of reference numerals in the attached drawings: 1. Base; 11. Mounting base; 12. Water tank; 121. First placement slot; 122. Through hole; 123. Drain outlet; 124. Water baffle; 2. Shell; 21. Receiving cavity; 211. Air inlet cavity; 212. Ventilation cavity; 22. Air outlet; 23. Ventilation hole; 24. Hot air outlet; 25. Air inlet; 3. Connecting plate; 31. Air inlet; 4. Air duct; 41. Air outlet cavity; 51. Exhaust fan; 52. Hot air fan; 6. Filter assembly; 61. Support frame; 611. Second placement slot; 6111. Guide hole; 612. Drain outlet; 613. Drain outlet; 614. Water collection tank; 62. Humidifying cotton; 63. Water pump; 64. Guide 65. Pipe; 65. Ring body; 651. Ring groove; 6511. Embedded groove; 652. Dust collection groove; 653. Guide groove; 66. Mounting block; 661. Roller; 662. Mounting groove; 663. Fixing groove; 67. Filter cotton; 68. Drive block; 681. Rack; 682. Drive groove; 7. Drive assembly; 71. Rotating shaft; 72. First gear; 73. Second gear; 8. Cleaning assembly; 81. First spring; 82. Scraper; 83. Connecting block; 831. Limiting block; 832. Clearance groove; 84. Push plate; 85. Cleaning plate; 851. Cleaning column; 852. Protrusion; 86. Third spring; 87. Second spring; 88. Protrusion; 881. Guide surface. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0038] This application discloses an air purifier. (Refer to...) Figure 1 and Figure 2 The air purifier includes a base 1, a housing 2, a connecting plate 3, an air duct 4, an exhaust fan 51, a hot air blower 52, a filter assembly 6, a drive assembly 7, and a cleaning assembly 8.

[0039] Reference Figure 2The base 1 includes a mounting base 11 and a water tank 12. The lower end of the water tank 12 is coaxially fixedly connected to the upper end of the mounting base 11. The housing 2 is provided with a receiving cavity 21. The water tank 12 is located in the receiving cavity 21. One end of the mounting base 11 is connected to the inner wall of the receiving cavity 21 and covers the downward opening of the receiving cavity 21. The other end of the mounting base 11 abuts against the ground.

[0040] The outer periphery of the connecting plate 3 is fixedly connected to the inner periphery of the receiving cavity 21. The connecting plate 3 divides the receiving cavity 21 into an air inlet cavity 211 and an air exchange cavity 212. The air inlet cavity 211 is located below the connecting plate 3, and the air exchange cavity 212 is located above the connecting plate 3. The connecting plate 3 is provided with an air inlet 31, and the upper end of the housing 2 is provided with an air outlet 22. One end of the air duct 4 is fixedly connected to the upper end of the connecting plate 3, and the other end of the air duct 4 is fixedly connected to the inner wall of the air outlet 22. The air duct 4 is provided with an air outlet cavity 41, and the exhaust fan 51 is fixedly connected to the inner wall of the air outlet cavity 41. The air outlet cavity 41 and the air inlet cavity 211 are connected through the air inlet 31.

[0041] The outer wall of the housing 2 is provided with a ventilation hole 23, the height of which is greater than the height of the connecting plate 3. The ventilation hole 23 is connected to the ventilation chamber 212. A hot air outlet 24 is provided at the upper end of the housing 2, away from the air outlet 22. The hot air outlet 24 is connected to the ventilation chamber 212. A hot air blower 52 is fixedly connected to the outer wall of the air duct 4. The hot air blower 52 is used to draw outside air into the ventilation chamber 212 through the ventilation hole 23, heat it, and then discharge it through the hot air outlet 24.

[0042] The outer wall of the housing 2 is provided with an air inlet 25. The height of the air inlet 25 is less than the height of the connecting plate 3. There are multiple air inlets 25, which are spaced apart along the circumference and axial direction of the housing 2.

[0043] Reference Figure 2 The filter assembly 6 includes a support frame 61, a humidifying cotton 62, a water pump 63, a guide pipe 64, a ring 65, a mounting block 66, a filter cotton 67, and a drive block 68.

[0044] The upper end of the water tank 12 is coaxially provided with a first placement groove 121, which is annular. One end of the support frame 61 is attached to the groove wall of the first placement groove 121 away from the axis of the water tank 12. The other end of the support frame 61 facing the water tank 12 is provided with a second placement groove 611, and the opening of the second placement groove 611 is directly opposite the opening of the first placement groove 121. The humidifying cotton 62 is annular, with the lower end of the humidifying cotton 62 embedded in the first placement groove 121 and the upper end of the humidifying cotton 62 embedded in the second placement groove 611. The support frame 61 is provided with a seepage port 612, which is used to allow gas to pass through or to allow excess water on the humidifying cotton 62 to flow back to the water tank 12.

[0045] Reference Figure 2The upper end of the water tank 12 has a through hole 122 coaxially. The pump casing of the water pump 63 is fixedly connected to the bottom wall of the water tank 12. One end of the guide pipe 64 is fixedly connected to the outlet of the water pump 63. The upper end of the support frame 61 has a drain outlet 613. The other end of the guide pipe 64 passes through the through hole 122 and connects to the inner wall of the drain outlet 613. The support frame 61 has a water receiving groove 614. The bottom of the second placement groove 611 has a guide hole 6111. The height of the drain outlet 613 is greater than the height of the water receiving groove 614, and the height of the water receiving groove 614 is greater than the height of the guide hole 6111. The upper end of the water tank 12 has a drain outlet 123. There are multiple drain outlets 123, which are evenly spaced around the axis of the through hole 122.

[0046] Reference Figure 2 A baffle plate 124 extends upward from the wall of the first placement groove 121 toward the axis of the water tank 12. The inner circumference of the ring body 65 is fixedly connected to the outer circumference of the baffle plate 124. The outer circumference of the ring body 65 fits against the inner wall of the air intake chamber 211. The upper end of the ring body 65 is provided with an annular groove 651. The mounting block 66 is embedded in the annular groove 651. The lower end of the mounting block 66 is connected to a roller 661. The bottom of the annular groove 651 is provided with a recess 6511. The outer circumference of the roller 661 is connected to the bottom of the recess 6511. The upper end of the mounting block 66 is provided with a mounting groove 662. The lower end of the filter cotton 67 is embedded in the mounting groove 662. The lower end of the drive block 68 is provided with a drive groove 682. The upper end of the filter cotton 67 is embedded in the drive groove 682. The upper end of the drive block 68 is slidably connected to the lower end of the connecting plate 3.

[0047] Reference Figure 2 The drive assembly 7 includes a rotating shaft 71, a first gear 72, and a second gear 73. The motor shaft of the exhaust fan 51 is coaxially fixedly connected to the rotating shaft 71. The axis of the rotating shaft 71 is collinear with the axis of the connecting plate 3. The lower end of the rotating shaft 71 passes through the air inlet 31 and is coaxially fixedly connected to the first gear 72. The second gear 73 is rotatably connected to the lower end of the connecting plate 3. The first gear 72 meshes with the second gear 73. A rack 681 is connected to the inner circumference of the drive block 68, and the outer circumference of the second gear 73 meshes with the rack 681.

[0048] Reference Figure 3 and Figure 4 The cleaning component 8 includes a first spring 81, a scraper 82, a connecting block 83, a push plate 84, a cleaning plate 85, a third spring 86, a second spring 87, a protrusion 88, and a fourth spring 89.

[0049] One end of the first spring 81 is fixedly connected to the inner wall of the air intake chamber 211, and the other end of the first spring 81 is fixedly connected to one end of the scraper 82. The other end of the scraper 82 abuts against the outer periphery of the filter cotton 67. The length of the scraper 82 is equal to the length of the filter cotton 67 minus the difference between the thickness of the mounting block 66 and the thickness of the drive block 68.

[0050] Reference Figure 4 and Figure 5 The connecting block 83 is connected to the lower end of the scraper 82. The upper end of the ring 65 is provided with a dust collection groove 652, which is located below the scraper 82. The dust collection groove 652 extends radially along the ring 65 to the air inlet 25 at the end away from the axis of the ring 65. The lower end of the connecting block 83 is provided with a limiting block 831. There are two limiting blocks 831, which are both located in the dust collection groove 652 and respectively attached to the groove wall of the dust collection groove 652. The lower end of the connecting block 83 slides against the upper end face of the ring 65. The end of the connecting block 83 facing the axis of the ring 65 is provided with a relief groove 832. One end of the push plate 84 is slidably embedded in the dust collection groove 652, and the other end of the push plate 84 is located in the relief groove 832. One end of the fourth spring 89 is fixedly connected to the groove wall of the dust collection groove 652 away from the axis of the ring 65, and the other end of the fourth spring 89 is fixedly connected to the push plate 84.

[0051] Reference Figure 4 The cleaning plate 85 is slidably connected to the upper part of the ring 65. The cleaning plate 85 is located between the filter cotton 67 and the housing 2. A cleaning column 851 is connected to one end of the cleaning plate 85 away from the axis of the ring 65. One end of the third spring 86 is fixedly connected to the end of the cleaning plate 85 away from the axis of the ring 65, and the other end of the third spring 86 is fixedly connected to the inner wall of the air inlet chamber 211. The cleaning column 851 is used to slidably connect to the air inlet 25. There are eight cleaning plates 85, which are evenly spaced around the axis of the ring 65. There are multiple cleaning columns 851, which are arranged one-to-one with the air inlet 25. The lower end of the cleaning plate 85 is provided with a protrusion 852, and the upper end of the ring 65 is provided with a guide groove 653. The protrusion 852 is slidably embedded in the guide groove 653, and the sliding direction of the protrusion 852 is along the radial direction of the ring 65.

[0052] Reference Figure 6 The mounting block 66 is provided with a fixing groove 663 at one end of the ring body 65 away from the axis. One end of the second spring 87 is connected to the bottom of the fixing groove 663, and the other end of the second spring 87 is connected to one end of the protrusion 88. The other end of the protrusion 88 is used to abut against the cleaning plate 85 and the push plate 84. The protrusion 88 is provided with a guide surface 881, which is set as an inclined surface.

[0053] Reference Figure 4 and Figure 6 When the third spring 86 is not subjected to external force, there is a gap between the cleaning column 851 and the air inlet 25. When the protrusion 88 abuts against the cleaning plate 85, the third spring 86 is compressed by external force, and the cleaning column 851 extends into the air inlet 25.

[0054] Reference Figure 5 and Figure 6When the protrusion 88 abuts against the push plate 84, the fourth spring 89 extends, and the push plate 84 discharges the dust outward.

[0055] The implementation principle of an air purifier according to an embodiment of this application is as follows: the exhaust fan 51 drives the rotating shaft 71 to rotate, causing the first gear 72 to rotate. The first gear 72 meshes with the second gear 73. The second gear 73 rotates and meshes with the rack 681. The rotation of the drive block 68 drives the mounting block 66 to rotate through the filter cotton 67. The rotation of the mounting block 66 generates centrifugal force, causing the protrusion 88 to slide towards the end opposite to the axis of the ring body 65. This causes the cleaning plate 85 to slide and clean the air inlet 25 in sequence. During the rotation of the filter cotton 67, the scraper 82 continuously scrapes and cleans the outer wall of the filter cotton 67, causing the dust to fall into the dust collection groove 652. The protrusion 88 pushes the pusher plate 84 to discharge the dust pile outward from the air inlet 25.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An air purifier, characterized in that: The system includes a housing (2), a base (1), a connecting plate (3), an exhaust fan (51), a mounting block (66), filter cotton (67), and a scraper (82). The housing (2) has a receiving cavity (21). The base (1) is connected to the inner wall of the receiving cavity (21) and covers the downward-facing opening of the receiving cavity (21). The connecting plate (3) is connected to the inner wall of the receiving cavity (21) and has an air inlet (31). The exhaust fan (51) is connected to the housing (2) and positioned above the air inlet (31). The upper end of the housing (2) is provided with an air outlet (22), and the outer wall of the housing (2) is provided with an air inlet (25). The height of the air inlet (25) is less than the height of the connecting plate (3). The two ends of the filter cotton (67) are coaxially rotatably connected to the upper end of the base (1) and the lower end of the connecting plate (3). The inner diameter of the filter cotton (67) is greater than the inner diameter of the air inlet (31). One end of the scraper (82) is connected to the inner wall of the receiving cavity (21), and the other end of the scraper (82) abuts against the outer periphery of the filter cotton (67). The upper end of the seat (1) is provided with a dust collection groove (652), and the scraper (82) is located above the dust collection groove (652); It also includes a push plate (84), which is slidably embedded in the dust collection groove (652), and the sliding direction of the push plate (84) is along the radial direction of the seat (1); It also includes a protrusion (88), one end of which is slidably connected to the filter cotton (67), the sliding direction of which is along the radial direction of the seat (1), and the other end of which is used to abut against the push plate (84). It also includes a second spring (87), one end of which is connected to the filter cotton (67), and the other end of which is connected to the protrusion (88).

2. The air purifier according to claim 1, characterized in that: It also includes a first spring (81), one end of which is connected to the inner wall of the receiving cavity (21), and the other end of which is connected to the scraper (82).

3. The air purifier according to claim 1, characterized in that: It also includes a connecting block (83), which is connected to the lower end of the scraper (82). The lower end of the connecting block (83) is provided with a limiting block (831), which is slidably embedded in the dust collection groove (652).

4. The air purifier according to claim 1, characterized in that: The dust collection trough (652) extends radially along the seat (1) to communicate with the air inlet (25).

5. The air purifier according to claim 1, characterized in that: It also includes a cleaning plate (85), which is slidably connected to the upper end of the seat (1). The cleaning plate (85) is connected to a cleaning column (851) at one end away from the axis of the seat (1). The cleaning column (851) is used to slide into the air inlet (25).

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