Air purifier filter element structure and air purifier

Abstract

The air purifier filter element structure comprises a filter screen, a fixing cylinder and a cleaning structure, a rotating table is rotationally assembled at the upper end of the fixing cylinder, an air outlet is formed in the middle of the rotating table, an annular limiting groove is formed in the upper end of the rotating table, and the cleaning structure is arranged in the annular limiting groove. The upper end of the filter screen is installed in the annular limiting groove in a penetrating mode, the cleaning structure is provided with a cleaning brush, a push block and a collecting groove, the cleaning brush is arranged in the side wall of the fixing cylinder and abuts against the outer side of the filter screen, the collecting groove is formed in the lower end of the fixing cylinder, and the collecting groove is formed in the periphery of the lower end of the filter screen in a surrounding mode. The push block is detachably installed at the lower end of the filter screen, and the push block abuts against the bottom of the collecting tank during rotation. The filter screen is rotated through the rotating table, dust accumulated on the outer side of the filter screen is scraped and falls into the collecting tank through the cleaning brush, and then the dust in the collecting tank is moved out through the push block connected with the lower end of the filter screen in the rotating process.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and in particular to an air purifier filter structure and an air purifier. Background Technology

[0002] Current air purifiers primarily purify the air by capturing dust and other particulate matter through filters. However, this method has several drawbacks in practical applications. Dust and other particulate matter tend to accumulate on the outside of the filter, affecting the air purifier's purification efficiency. Furthermore, the method of periodically replacing the filter is time-consuming and inconvenient to install and remove.

[0003] Therefore, a technology that can clean dust and improve the purification efficiency of air purifiers is needed to solve this problem. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide an air purifier filter structure and an air purifier.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an air purifier filter structure, including a filter screen, a fixed cylinder, and a cleaning structure. The upper end of the fixed cylinder is rotatably equipped with a rotating platform. An air outlet is opened in the middle of the rotating platform. An annular limiting groove is opened at the upper end of the rotating platform. The upper end of the filter screen is installed in the annular limiting groove. The cleaning structure is provided with a cleaning brush, a push block, and a collection groove. The cleaning brush is located inside the side wall of the fixed cylinder and abuts against the outer side of the filter screen. A collection groove is formed at the lower end of the fixed cylinder and surrounds the lower outer periphery of the filter screen. The push block is detachably installed at the lower end of the filter screen and abuts against the bottom of the collection groove when rotating.

[0006] As a further improvement of this utility model: the filter screen is ring-shaped, and the upper end of the filter screen is bent along the outer periphery to form a positioning step, and the positioning step is fixedly disposed on the upper end surface of the rotating table.

[0007] As a further improvement of this utility model: the filter screen is cylindrical, and a central filter core is formed at the upper end of the filter screen, and the central filter core is located at the air outlet.

[0008] As a further improvement of this utility model: the filter screen is provided with a main filtration area and a secondary filtration area at intervals along the circumferential direction, the two main filtration areas are arranged opposite to each other, and the side wall of the fixed cylinder is provided with mutually symmetrical air inlets.

[0009] As a further improvement of this utility model: the fixed cylinder is provided with an outer shell and an inner shell, a cleaning channel is formed between the outer shell and the inner shell, the filter screen is inserted into the cleaning channel, the cleaning brush is disposed on the inner wall of the outer shell, and the air inlet is disposed between the two cleaning channels.

[0010] As a further improvement of this utility model: the outer shell is provided with an elastic component, which is fixedly connected to the cleaning brush, and the elastic component provides a force to drive the cleaning brush to extend and retract toward the filter screen.

[0011] As a further improvement of this utility model: a filter screen is arranged at the air inlet, and a positioning recess is provided at the bottom of the fixed cylinder, the positioning recess being located on the same side as the air inlet.

[0012] As a further improvement of this utility model: a recycling box can be detachably installed in the positioning recess.

[0013] As a further improvement of this utility model: the lower end of the rotary table is provided with an annular sliding groove, and the annular sliding groove is slidably connected to the upper end of the fixed cylinder.

[0014] An air purifier includes the aforementioned air purifier filter structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features a rotating platform mounted on the upper end of a fixed cylinder. The filter screen is installed in the annular limiting groove of the rotating platform. A cleaning brush and a collection trough are set on the outer periphery of the filter screen. The rotating platform drives the filter screen to rotate, and the cleaning brush cleans and scrapes off the dust and other impurities accumulated on the outside of the filter screen, which fall into the collection trough. This prevents excessive dust accumulation from increasing the filtration resistance and ensures that the air is fully purified after passing through the filter screen. At the same time, the push block connected to the lower end of the filter screen pushes away the dust on the collection trough, preventing the cleaned dust from accumulating in the collection trough. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an air purifier filter element according to the present invention.

[0018] Figure 2 This is a perspective view of the structure of an air purifier filter element according to the present invention.

[0019] Figure 3 This is a cross-sectional view of the filter structure of an air purifier according to the present invention.

[0020] Figure 4 This is another cross-sectional view of the air purifier filter structure of this utility model.

[0021] Figure label:

[0022] 1. Filter screen; 11. Positioning step; 2. Fixing cylinder; 21. Outer shell; 22. Inner shell; 23. Cleaning channel; 3. Rotating table; 301. Air outlet; 302. Annular chute; 4. Cleaning brush; 5. Push block; 6. Collection trough; 7. Air inlet; 8. Elastic component; 9. Positioning notch. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In order to solve the technical problems in the prior art, the present invention will be further described in conjunction with the accompanying drawings and embodiments:

[0025] like Figures 1 to 4 As shown in the figure, this utility model embodiment discloses an air purifier filter structure, including a filter screen 1, a fixed cylinder 2, and a cleaning structure. A rotating platform 3 is rotatably mounted on the upper end of the fixed cylinder 2. An air outlet 301 is opened in the middle of the rotating platform 3. An annular limiting groove is opened on the upper end of the rotating platform 3. The upper end of the filter screen 1 is installed in the annular limiting groove. The cleaning structure includes a cleaning brush 4, a push block 5, and a collection groove 6. The cleaning brush 4 is located inside the side wall of the fixed cylinder 2 and abuts against the outer side of the filter screen 1. A collection groove 6 is formed at the lower end of the fixed cylinder 2 and surrounds the lower outer periphery of the filter screen 1. The push block 5 is detachably installed at the lower end of the filter screen 1 and abuts against the bottom of the collection groove 6 when rotating.

[0026] The rotating platform 3 rotates around the fixed cylinder 2, and the filter screen 1 fixed on the rotating platform 3 rotates with it. A cleaning brush 4 is installed inside the side wall of the fixed cylinder 2, and the cleaning brush 4 abuts against the outer side of the filter screen 1. Thus, when the filter screen 1 rotates, the cleaning brush 4 cleans the dust and other impurities accumulated on the outer side of the filter screen 1. The dust and other impurities fall into the collection tank 6, thus cleaning the filter screen 1 and ensuring that the air is fully purified after passing through the filter screen 1. At the same time, a push block 5 is added to the lower end of the filter screen 1, so that the push block 5 keeps abutting against the bottom of the collection tank 6. In this way, when the push block 5 rotates with the filter screen 1, the push block 5 pushes out the dust and other impurities in the collection tank 6, preventing the dust from accumulating in the collection tank 6 over time and affecting the filtration effect of the filter screen 1.

[0027] The push block 5 and the filter screen 1 can be installed by snap-fit. Specifically, the upper end of the push block 5 is provided with a limiting notch, which is fitted into the lower end of the filter screen 1, facilitating the separation of the push block 5 and the filter screen 1. Alternatively, a hinged connection can be used, where the lower ends of the push block 5 and the filter screen 1 are hinged together. When the filter screen 1 is lifted upwards, the push block 5 is vertically positioned, making it easy to remove the filter screen 1 from the annular limiting groove at the upper end of the rotary table 3. The hinged structure and the entire structure of the push block 5 are small, and only need to be designed not to affect the overall disassembly and assembly of the filter screen 1.

[0028] In some embodiments, the filter screen 1 is designed in a ring shape, with the upper end of the filter screen 1 bent along its outer circumference to form a positioning step 11, which is fixedly disposed on the upper end face of the rotating platform 3. The ring-shaped filter screen 1 and the positioning step 11 form an L-shaped structure. The ring-shaped filter screen 1 passes through the annular limiting groove of the rotating platform 3, and the lower end of the filter screen 1 contacts the bottom of the fixed cylinder 2. The positioning step 11 also clamps and fixes the filter screen 1 onto the rotating platform 3, ensuring that the filter screen 1 rotates along with the rotating platform 3 during rotation. At the same time, the ring-shaped design of the filter screen 1 and the positioning step 11 cooperate to allow the filter screen 1 to be quickly assembled onto the rotating platform, and also to facilitate the user to quickly disassemble and replace the new filter screen 1.

[0029] More preferably, the positioning step 11 and the rotating table 3 are further fixedly connected by a fixing member. The rotating table 3 drives the filter screen 1 to rotate and cooperate with the cleaning brush 4 to realize the cleaning function of the filter screen 1.

[0030] In some embodiments, the filter 1 is cylindrical, with a central filter core formed at the upper end of the filter 1, which is located at the air outlet 301. By designing the filter 1 as a cylinder, the surrounding annular filter 1 body filters the air entering through the air inlet 7, while the central filter core at the upper end further filters and purifies the air flowing out of the fixed cylinder 2, improving the purification efficiency of the filter 1. Furthermore, the cylindrical design of the filter 1 allows for quick disassembly and installation, facilitating user replacement of the filter 1.

[0031] In some embodiments, the fixed cylinder 2 is provided with an outer shell 21 and an inner shell 22, and a cleaning channel 23 is formed between the outer shell 21 and the inner shell 22. The filter screen 1 is inserted into the cleaning channel 23, the cleaning brush 4 is provided on the inner wall of the outer shell 21, and the air inlet 7 is provided between the two cleaning channels 23.

[0032] The outer shell 21 is located on the outer periphery of the filter screen 1, and the inner shell 22 is located on the inner periphery of the filter screen 1. Specifically, the filter screen 1 is sandwiched between the outer shell 21 and the inner shell 22. When the cleaning brush 4 on the outer shell 21 cleans the dust and other impurities on the filter screen 1 and the outer shell 21, the inner shell 22 plays the role of preventing dust from entering the internal space of the fixed cylinder 2. The fixed cylinder 2 is provided with two cleaning channels 23 in the circumferential direction. The two cleaning channels 23 are generally symmetrically arranged. Correspondingly, two air inlets 7 are opened on the side wall of the fixed cylinder 2. The air inlets 7 are located between the two cleaning channels 23.

[0033] Furthermore, the filter screen 1 is provided with main filtration area and secondary filtration area at intervals along the circumferential direction. The two main filtration areas are arranged opposite each other, and the two secondary filtration areas are arranged opposite each other. The side wall of the fixed cylinder 2 is provided with mutually symmetrical air inlets 7.

[0034] The filter screen 1 is divided into four parts along the circumferential direction. Correspondingly, two air inlets 7 are opened on the side wall of the fixed cylinder 2. The two air inlets 7 are arranged opposite each other. In this way, the main filtration area or the secondary filtration area is set at each air inlet 7 to filter and purify the air entering the fixed cylinder 2.

[0035] When the main filter area is moved to the air inlet 7, the secondary filter area is located in the cleaning channel 23. At this time, the secondary filter area has a weak air purification effect. When too much dust and other impurities accumulate on the outside of the main filter area, the main filter area is rotated into the cleaning channel 23 by the rotating table 3, and the dust is cleaned by the cleaning brush 4. The secondary filter area is then moved to the air inlet 7 to purify the air. The main filter area and the secondary filter area are used alternately. For users who use it frequently, this can reduce the frequency of replacing the filter 1. When in use, it is equivalent to having two filters 1, which increases the service life of the filter 1 and reduces the replacement cost.

[0036] In some embodiments, the housing 21 is provided with an elastic component 8, which is fixedly connected to the cleaning brush 4. The elastic component 8 provides a force that drives the cleaning brush 4 to extend and retract toward the filter screen 1.

[0037] The elastic component 8 includes a fixed base, a telescopic column, and a connecting plate. Multiple fixed bases are provided and installed on the outer shell 21 of the fixed cylinder 2. One end of the telescopic column is connected to the fixed base, and the other end of the telescopic column is connected to the connecting plate. The connecting plate is fixedly connected to the cleaning brush 4. The telescopic column has an elastic element built in, which can be a spring, elastic rubber, etc. The elastic element is existing technology. It only needs to ensure that the cleaning brush 4 and the outer side of the filter screen 1 remain in contact. It is suitable for filter screens 1 of different sizes. Users do not need to worry about the problem of poor cleaning effect due to size difference when replacing the new filter screen 1.

[0038] In some embodiments, a filter screen 1 is arranged at the air inlet 7, and a positioning recess 9 is provided at the bottom of the fixing cylinder 2, with the positioning recess 9 located on the same side as the air inlet 7. Furthermore, a collection box is detachably installed in the positioning recess 9. During the rotation of the filter screen 1, the pusher block 5 rotates accordingly, pushing the dust and other impurities in the collection tank 6 into the collection box in the positioning recess 9, which can then be emptied by the user.

[0039] Furthermore, the recycling box can be installed in the positioning recess 9 by embedding, or it can be installed as a push-pull drawer.

[0040] In some embodiments, the lower end of the rotary table 3 is provided with an annular groove 302, which is slidably connected to the upper end of the fixed cylinder 2. Furthermore, the annular groove 302 is rotatably connected to the upper end of the outer shell 21 of the fixed cylinder 2.

[0041] This utility model also provides an air purifier, including the aforementioned air purifier filter structure. The filter structure is built into the interior of the air purifier housing. An annular groove is designed on the housing, and a handle is installed on the outer wall of the rotating platform. The handle slides into the annular groove, and pushing the handle rotates the platform, causing the filter to rotate and thus achieving the dust-cleaning function.

[0042] The main functions of this utility model are:

[0043] 1. This utility model installs the filter screen in the annular limiting groove of the rotating table. A cleaning brush and a collection groove are set on the outer periphery of the filter screen. The rotating table drives the filter screen to rotate. The cleaning brush cleans and scrapes off the dust and other impurities accumulated on the outside of the filter screen, which fall into the collection groove. This prevents excessive dust accumulation from increasing the filtration resistance and ensures that the air is fully purified after passing through the filter screen. At the same time, during the rotation of the filter screen, the pusher pushes away the dust on the collection groove, preventing the cleaned dust from accumulating in the collection groove.

[0044] 2. The filter screen is designed in a ring shape with positioning steps or a cylindrical structure, which makes it easy for users to quickly disassemble and replace the filter screen.

[0045] 3. The cleaning brush is connected to an elastic component, which keeps the cleaning brush in contact with the filter screen to achieve the cleaning function. It is suitable for filter screens of different sizes, so users do not need to worry about the cleaning effect being poor due to size differences when replacing the filter screen.

[0046] In summary, any other corresponding modifications made by those skilled in the art after reading this utility model document, based on the technical solution and concept of this utility model without creative mental effort, shall all fall within the scope of protection of this utility model.

Claims

1. An air purifier filter structure, characterized in that, Including filter screen, fixed cylinder and cleaning structure, the upper end of the fixed cylinder is rotatably equipped with a rotating table, the middle part of the rotating table is provided with an air outlet, the upper end of the rotating table is provided with an annular limiting groove, the upper end of the filter screen is installed in the annular limiting groove, the cleaning structure is provided with a cleaning brush, a push block and a collecting groove, the cleaning brush is arranged in the inner wall of the fixed cylinder, the cleaning brush abuts against the outer side of the filter screen, the lower end of the fixed cylinder is formed with a collecting groove, the collecting groove is arranged around the outer periphery of the lower end of the filter screen, the push block is detachably installed on the lower end of the filter screen, and the push block abuts against the bottom of the collecting groove when rotating.

2. The air cleaner cartridge of claim 1, wherein: The filter screen is annular, the upper end of the filter screen is bent along the outer periphery to form a positioning step, and the positioning step is fixedly arranged on the upper end surface of the rotating table.

3. The air cleaner cartridge of claim 1, wherein: The filter screen is cylindrical, the upper end of the filter screen is formed with a central filter core, and the central filter core is arranged at the air outlet.

4. The air cleaner cartridge of claims 2 or 3, wherein: The filter screen is provided with a main filter area and a secondary filter area in the circumferential direction, two main filter areas are oppositely arranged, and air inlets are symmetrically arranged on the side wall of the fixed cylinder.

5. The air cleaner cartridge of claim 4, wherein: The fixed cylinder is provided with an outer shell and an inner shell, a cleaning channel is formed between the outer shell and the inner shell, the filter screen is arranged in the cleaning channel, the cleaning brush is arranged on the inner wall of the outer shell, and the air inlets are arranged between the two cleaning channels.

6. The air cleaner cartridge of claim 5, wherein: The outer shell is provided with an elastic assembly, the elastic assembly is fixedly connected with the cleaning brush, and the elastic assembly provides an action force for driving the cleaning brush to stretch and retract towards the filter screen.

7. The air cleaner cartridge of claim 4, wherein: The air inlet is arranged with a filter screen, the bottom of the fixed cylinder is provided with a positioning recess, and the positioning recess and the air inlet are located on the same side.

8. The air cleaner cartridge of claim 7, wherein: A recycling box is detachably installed in the positioning recess.

9. The air cleaner cartridge of claim 1, wherein: The lower end of the rotating table is provided with an annular sliding groove, and the upper end of the fixed cylinder is slidably connected with the annular sliding groove.

10. An air cleaner characterized by comprising: The air purifier filter core structure comprises the air purifier filter core structure of any one of claims 1-9. The air purifier filter core structure comprises the air purifier filter core structure of any one of claims 1-9.

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