Air purification device

Abstract

The invention discloses an air purification device, and relates to the technical field of air purification, the air purification device comprises a machine shell and a filter assembly, a partition plate is connected in the machine shell, a circular air suction opening is formed in the center of the partition plate, two air inlet grilles are installed on the two sides of the machine shell and located below the partition plate, an air exhaust box is installed above the partition plate, and a fan is installed in the air exhaust box. The cleaning mechanism is arranged, when a large number of impurities such as batting and thread ends are accumulated on the screen face of a filter screen, a cleaning mode is started, the impurities on the filter screen are firstly cleaned through a cleaning roller, then the filter screen is cleaned through the cleaning roller, and then the filter screen is cleaned through the cleaning roller; and then, the cleaning roller and the bristles which adhere to the sundries are cleaned, a user only needs to pull out the dust collection drawer to pour the sundries, the machine shell does not need to be disassembled to take out the filter screen for cleaning, the whole cleaning work is automatically carried out, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to an air purification device. Background Art

[0002] Air purifier, also known as "air cleaner", air refresher, purifier, refers to a product that can absorb, decompose or transform various air pollutants (generally including PM2.5, dust, pollen, odor, decoration pollution such as formaldehyde, bacteria, allergens, etc.), effectively improving the cleanliness of the air.

[0003] Some existing textile factories install air purification devices in the workshop to filter and purify air pollutants such as lint, fine thread ends, dust, etc. in the workshop air. Since the filter in the air purification device is used in the workshop, a large amount of lint, thread ends and other debris will accumulate after a period of time. Therefore, the filter needs to be cleaned regularly. However, when cleaning the filter of the existing air purification device, the filter must be taken out, and removing the filter requires dismantling several parts of the air purification device (such as the cover and grille assembly of the casing), and then reassembling the cleaned filter to the air purification device. The whole cleaning work is troublesome and inefficient. Therefore, an air purification device is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide an air purification device.

[0005] An air purification device includes a casing and a filter assembly, wherein a partition is connected inside the casing, a circular air intake port is arranged at the center of the partition, two air intake grilles are installed on both sides of the casing and below the partition, an air extraction box is installed above the partition, an air outlet grille is installed on the casing corresponding to the air extraction box, the filter assembly is installed on the bottom surface of the partition, a first motor is installed on the top of the air extraction box, the output shaft of the first motor extends to the air extraction box and is coaxially connected to the main shaft, a centrifugal impeller is coaxially connected to the main shaft, and a cleaning mechanism is arranged in the casing for cleaning filtered debris on the filter screen in the filter assembly.

[0006] Preferably, the filter assembly is provided with a photocatalyst layer, an activated carbon layer, a HEPA filter layer, and an annular filter screen in sequence from the inside to the outside, and the bottom of the filter screen is connected to a bottom plate.

[0007] Preferably, the cleaning mechanism includes a rotating shaft, the lower end of the main shaft passes through the bottom plate and is rotatably connected to a rotating plate through a one-way bearing, the end of the rotating plate away from the main shaft is rotatably connected to the rotating shaft, a cleaning roller is coaxially arranged on the rotating shaft, a plurality of rows of bristles are equidistantly arranged on the cleaning roller, a second gear ring is coaxially arranged on the outer ring of the filter, the upper end of the rotating shaft is coaxially connected to a third gear, and the third gear is meshed with the second gear ring.

[0008] Preferably, the bottom surface of the partition is coaxially provided with an annular guide rail around the air suction port, a guide block is slidably connected to the annular guide rail, one end of the guide block close to the filter is rotatably connected to the upper end of the rotating shaft, a second motor and a sliding rod are installed on the end of the guide block away from the rotating shaft, a reciprocating screw is coaxially connected to the output shaft of the second motor, the reciprocating screw is arranged parallel to the sliding rod, a slider is slidably connected to the sliding rod, the slider is threadedly connected to the reciprocating screw, and a cleaning hook is connected to the end of the slider close to the cleaning roller.

[0009] Preferably, the guide block is rotatably connected to a connecting shaft on one side close to the second motor, the connecting shaft is coaxially rotatably connected to the first gear of the pressure head through a one-way bearing, the connecting shaft is coaxially connected to the second gear, the bottom surface of the partition is connected to a first gear ring, the first gear ring is meshed with the second gear, and a vertical spur rack is connected to the slider, and the spur rack is meshed with the slider.

[0010] Preferably, the length of the reciprocating screw is greater than the length of the cleaning roller.

[0011] Preferably, a dust collection drawer is provided at the bottom of the casing.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] The present invention is provided with a cleaning mechanism. When a large amount of lint, thread ends and other debris are accumulated on the filter screen, a cleaning mode is turned on. The debris on the filter screen is first cleaned with a cleaning roller, and then the cleaning roller and bristles on the adhering debris are cleaned. The user only needs to pull out the dust collection drawer to dump the debris, and there is no need to disassemble the casing to take out the filter screen for cleaning. The entire cleaning work is performed automatically, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a structural cross-sectional view of the present invention.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0017] Figure 4It is a schematic diagram of the structure of the filter assembly in the present invention.

[0018] Figure 5 It is a schematic structural diagram of the cleaning roller part in the present invention.

[0019] In the figure: 1 casing, 11 partition, 111 air inlet, 12 air inlet grille, 13 air extraction box, 131 air outlet grille, 14 first motor, 15 main shaft, 16 centrifugal impeller, 17 filter assembly, 171 filter screen, 172 HEPA filter layer, 173 activated carbon layer, 174 photocatalyst layer, 2 cleaning mechanism, 21 rotating plate, 22 rotating shaft, 221 cleaning roller, 222 bristles, 23 annular guide rail, 24 guide block, 25 sliding rod, 251 slider, 252 cleaning hook, 26 second motor, 261 reciprocating screw rod, 27 connecting shaft, 271 first gear, 272 second gear, 273 first ring gear, 274 spur rack, 28 third gear, 29 second ring gear, 3 dust collection drawer. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figure 1-5 As shown, an air purification device includes a casing 1 and a filter assembly 17, wherein a partition 11 is connected to the casing 1, a circular air inlet 111 is arranged at the center of the partition 11, two air inlet grilles 12 are installed on both sides of the casing 1 and below the partition 11, an air extraction box 13 is installed above the partition 11, an air outlet grille 131 is installed on the casing 1 and corresponds to the air extraction box 13, the filter assembly 17 is installed on the bottom surface of the partition 11, a first motor 14 is installed on the top of the air extraction box 13, the output shaft of the first motor 14 extends to the air extraction box 13 and is coaxially connected to the main shaft 15, a centrifugal impeller 16 is coaxially connected to the main shaft 15, and a cleaning mechanism 2 is arranged in the casing 1 for cleaning filtered debris on the filter screen 171 in the filter assembly 17.

[0022] In this embodiment, the filter assembly 17 is provided with a photocatalyst layer 174, an activated carbon layer 173, a HEPA filter layer 172, and an annular filter screen 171 in sequence from the inside to the outside, and the bottom of the filter screen 171 is connected to a bottom plate.

[0023] In this embodiment, the cleaning mechanism 2 includes a rotating shaft 22, the lower end of the main shaft 15 passes through the bottom plate and is rotatably connected to a rotating plate 21 through a one-way bearing, the end of the rotating plate 21 away from the main shaft 15 is rotatably connected to the rotating shaft 22, a cleaning roller 221 is coaxially arranged on the rotating shaft 22, and a plurality of rows of bristles 222 are evenly spaced on the cleaning roller 221, a second gear ring 29 is coaxially arranged on the outer ring of the filter 171, and a third gear 28 is coaxially connected to the upper end of the rotating shaft 22, and the third gear 28 is meshed with the second gear ring 29, the first motor 14 is a forward and reverse motor, when the first motor 14 rotates forward, the direction of rotation of the rotating shaft 22 is the same as the direction of rotation of the one-way bearing, and will not drive the rotating plate 21 to rotate, when the output of the first motor 14 is reversed, it will drive the rotating shaft 22 and the rotating plate 21 to rotate together.

[0024] In this embodiment, a ring guide rail 23 is coaxially arranged on the bottom surface of the partition 11 around the air suction port 111, and a guide block 24 is slidably connected to the ring guide rail 23. The end of the guide block 24 close to the filter 171 is rotatably connected to the upper end of the rotating shaft 22, and a second motor 26 and a slide rod 25 are installed on the end of the guide block 24 away from the rotating shaft 22. A reciprocating screw 261 is coaxially connected to the output shaft of the second motor 26, and the reciprocating screw 261 is arranged parallel to the slide rod 25. A slider 251 is slidably connected to the slide rod 25, and the slider 251 is connected to the reciprocating screw 261 by threads. The end of the slider 251 close to the cleaning roller 221 is connected to a cleaning hook 252.

[0025] In this embodiment, the guide block 24 is rotatably connected to a connecting shaft 27 on one side close to the second motor 26. The connecting shaft 27 is coaxially rotatably connected to the first gear 271 of the pressure head through a one-way bearing. The connecting shaft 27 is coaxially connected to the second gear 272. The bottom surface of the partition 11 is connected to a first gear ring 273, and the first gear ring 273 is meshed with the second gear 272. The slider 251 is connected to a vertical spur rack 274, and the spur rack 274 is meshed with the slider 251. The one-way bearing at the first gear 271, when the spur rack 274 rises and meshes with the first gear 271 for transmission, the first gear 271 will drive the connecting shaft 27 to rotate, and when the spur rack 274 descends and meshes with a gear 271 for transmission, only the first gear 271 rotates alone.

[0026] In this embodiment, the length of the reciprocating screw 261 is greater than the length of the cleaning roller 221 , the highest point of the reciprocating screw 261 is higher than the cleaning roller 221 , and the lowest point of the reciprocating screw 261 is lower than the cleaning roller 221 .

[0027] In this embodiment, a dust collection drawer 3 is provided at the bottom of the housing 1 for collecting lint, thread ends and other debris hooked off from the cleaning roller 221 .

[0028] The working process and principle of the present invention are as follows:

[0029] When in use, the first motor 14 starts to rotate forward, driving the centrifugal impeller 16 to rotate at high speed. The centrifugal impeller 16 generates negative pressure to achieve air extraction. The outside air enters the casing 1 through the air intake grille 12, and is filtered by the filter assembly 17. The purified air will pass through the air intake port 111 and the air extraction box 13 and be discharged from the air outlet grille 131.

[0030] After a period of use, a layer of debris consisting of lint and thread ends adheres to the surface cavity of the filter 171, which affects the filtering and purification effect of the air purification device. At this time, the first motor 14 is controlled to reverse at a low speed. Under the action of the one-way bearing, the main shaft 15 will drive the rotating plate 21 to rotate. Through the meshing transmission of the third gear 28 and the second gear ring 273, the cleaning roller 221 revolves around the filter 171 and rotates at the same time, and the bristles 222 are used to brush away the debris on the filter 171, so as to clean the filter 171. After that, the first motor 14 is stopped and the second motor 26 is started. The second motor 26 will drive the reciprocating screw 261 to rotate, and the reciprocating screw 261 is used to rotate and drive the slider 251 to rise and fall periodically. During the descent of the slider 251, the cleaning hook 252 on the slider 251 will extend into the gap between the two rows of bristles 222 on the cleaning roller 221, and the lint, thread ends and other debris adhered to the bristles 222 will be hooked off and removed from the slider 251. After rising above the height of the cleaning roller 221, the spur rack 274 on the slider 251 will mesh with the first gear 271. After the slider 251 continues to rise, it drives the connecting shaft 27 to rotate, and utilizes the meshing of the second gear 272 and the first gear ring 273 to drive the guide block 24 and the rotating shaft 22 to move. At the same time, the meshing of the second gear ring 29 and the third gear 28 is also utilized to make the cleaning roller 221 rotate at a certain angle to direct the gap between the other two rows of bristles 22 toward the cleaning hook 252. When the cleaning hook 252 descends next time, the fluff, thread ends and other debris adhered to the bristles 222 are hooked off. After the slider 251 is lifted and lowered many times and the cleaning roller 221 is rotated and adjusted many times, the debris of the entire cleaning roller 221 is cleaned, and the cleaned debris will fall into the dust collection drawer 3. The personnel only need to pull out the dust collection drawer 3 to dump the debris, and there is no need to disassemble the casing 1 to take out the filter 171 for cleaning. The entire cleaning work is automatically carried out, which is convenient and efficient.

[0031] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. An air purification device, characterized in that: The invention comprises a casing (1) and a filter assembly (17), wherein a partition (11) is connected to the casing (1), a circular air inlet (111) is arranged at the center of the partition (11), two air inlet grilles (12) are arranged on both sides of the casing (1) and below the partition (11), an air extraction box (13) is arranged above the partition (11), and an air outlet grille (131) is arranged on the casing (1) and corresponds to the air extraction box (13), The filter assembly (17) is mounted on the bottom surface of the partition (11); a first motor (14) is mounted on the top of the vacuum box (13); an output shaft of the first motor (14) extends to the vacuum box (13) and is coaxially connected to a main shaft (15); a centrifugal impeller (16) is coaxially connected to the main shaft (15); a cleaning mechanism (2) is provided in the housing (1) for cleaning filtered debris on a filter screen (171) in the filter assembly (17).

2. An air purification device according to claim 1, characterized in that: The filter assembly (17) is provided with a photocatalyst layer (174), an activated carbon layer (173), a HEPA filter layer (172), and an annular filter screen (171) in sequence from the inside to the outside, and the bottom of the filter screen (171) is connected to a bottom plate.

3. An air purification device according to claim 2, characterized in that: The cleaning mechanism (2) comprises a rotating shaft (22); the lower end of the main shaft (15) passes through the bottom plate and is rotatably connected to a rotating plate (21) via a one-way bearing; the end of the rotating plate (21) away from the main shaft (15) is rotatably connected to the rotating shaft (22); a cleaning roller (221) is coaxially arranged on the rotating shaft (22); a plurality of rows of bristles (222) are arranged at equal intervals on the cleaning roller (221); a second gear ring (29) is coaxially arranged on the outer ring of the filter screen (171); a third gear (28) is coaxially connected to the upper end of the rotating shaft (22); and the third gear (28) is meshed with the second gear ring (29).

4. An air purification device according to claim 3, characterized in that: The bottom surface of the partition (11) is coaxially provided with an annular guide rail (23) around the air suction port (111), and a guide block (24) is slidably connected to the annular guide rail (23), and one end of the guide block (24) close to the filter screen (171) is rotatably connected to the upper end of the rotating shaft (22), and one end of the guide block (24) away from the rotating shaft (22) is installed with a second motor (26) and a sliding rod (25), and a reciprocating screw (261) is coaxially connected to the output shaft of the second motor (26), and the reciprocating screw (261) is arranged parallel to the sliding rod (25), and a slider (251) is slidably connected to the sliding rod (25), and the slider (251) is connected to the reciprocating screw (261) by threads, and one end of the slider (251) close to the cleaning roller (221) is connected to a cleaning hook (252).

5. An air purification device according to claim 4, characterized in that: The guide block (24) is rotatably connected to a connecting shaft (27) on one side close to the second motor (26); the connecting shaft (27) is coaxially rotatably connected to a first gear (271) of a pressure head via a one-way bearing; the connecting shaft (27) is coaxially connected to a second gear (272); the bottom surface of the partition (11) is connected to a first gear ring (273); the first gear ring (273) is meshed with the second gear (272); the slider (251) is connected to a vertical spur rack (274); the spur rack (274) is meshed with the slider (251).

6. An air purification device according to claim 4, characterized in that: The length of the reciprocating screw rod (261) is greater than the length of the cleaning roller (221).

7. An air purification device according to claim 4, characterized in that: A dust collection drawer (3) is provided at the bottom of the casing (1).

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