Pet purifier with easy maintenance

Abstract

This application relates to a maintenance-friendly pet air purifier, comprising: a housing; a self-cleaning module disposed on the air inlet side of the housing; and a dust collection module including a dust collection box removably mounted to the housing and a blade holder connected to the housing. The self-cleaning module includes a mounting bracket detachably connected to the housing, an annular filter rotatably mounted on the mounting bracket, and a drive mechanism for rotating the annular filter. The maintenance-friendly pet air purifier provided in this application, by providing a self-cleaning module including a rotatable annular filter and a scraping component on the air inlet side of the housing, and in conjunction with a removable dust collection box, can actively intercept and continuously scrape away pet hair and other contaminants adhering to the surface of the annular filter, causing them to fall directly into the dust collection box. This simplifies maintenance and reduces the frequency of filter replacement and operating costs.

Description

Technical Field

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

[0002] With the improvement of people's living standards and increasing attention to indoor air quality, air purifiers have become common appliances in many homes and offices. In particular, for families with pets, pet hair, dander, and pet odors are major factors affecting indoor air quality. Therefore, pet air purifiers specifically designed for pet environments have emerged, their main function being to effectively remove pet hair and dust from the air and eliminate odors.

[0003] Existing pet air purifiers typically employ a multi-layered filter structure to handle pet hair. A common practice is to create a specific spacing (e.g., 3-5mm) between the ribs of the outer filter, allowing pet hair to pass through and enter the purifier, where it is then intercepted and filtered by a finer internal filter or filtration module (such as a filter layer containing activated carbon). However, despite the interception by the inner filter, some fine hair and dander can still penetrate and adhere to the core filtration module. Over time, this accumulated hair clogs the micropores of the filtration module, reducing its filtration efficiency for particulate matter and severely impacting its odor-absorbing function, leading to a significant decline in the overall performance of the purifier. Furthermore, to maintain the purifier's effectiveness, users need to regularly disassemble, clean, or wash the outer and inner filters. When hair contamination is severe, these filters may even need to be replaced, undoubtedly increasing the user's operating costs and maintenance burden. Utility Model Content

[0004] To address the aforementioned issues, this application provides a pet purifier that offers effective hair collection and is easy to maintain.

[0005] To achieve the above objectives, the pet air purifier designed in this application is easy to maintain and includes:

[0006] chassis;

[0007] The self-cleaning module is located on the air inlet side of the housing;

[0008] The dust collection module includes a dust collection box that can be pulled out and installed on the housing, and a knife holder connected to the housing;

[0009] The self-cleaning module includes a mounting bracket detachably connected to the housing, an annular filter screen rotatably mounted on the mounting bracket, and a drive mechanism for driving the annular filter screen to rotate; a scraping component is fixed on the blade holder, and the scraping component is in close contact with the outer mesh surface of the annular filter screen to scrape off the adhering material on the annular filter screen and make it fall into the dust collection box.

[0010] Preferably, an active roller and a driven roller are rotatably mounted on the upper and lower edges of the mounting frame, respectively. The annular filter screen is detachably mounted on the active roller and the driven roller, and the driving mechanism is connected to the active roller in a transmission manner.

[0011] Preferably, the mounting bracket has pins at its lower edge, and the housing has sockets corresponding to the pin positions; the mounting bracket has buckles at its rear side at its upper edge, and the housing has elastic clamping pieces corresponding to the buckle positions; wherein the pins are adapted to be inserted into the sockets, and the buckles are adapted to be inserted into the elastic clamping pieces, so that the self-cleaning module can be detachably connected to the housing.

[0012] Preferably, the mounting bracket has V-shaped positioning protrusions on the rear sides of its left and right edges, and the V-shaped positioning protrusions are located near the bottom of the mounting bracket; the housing has V-shaped positioning grooves corresponding to the positions of the V-shaped positioning protrusions, and the V-shaped positioning protrusions cooperate with the V-shaped positioning grooves.

[0013] Preferably, the knife holder is provided with a collection port that communicates with the dust collection box, and the inlet of the collection port is a tapering opening that is wider at the top and narrower at the bottom.

[0014] Preferably, the housing is provided with a pull-out position suitable for assembling the dust collection box, and an elastic positioning structure is provided between the pull-out position and the dust collection box. The elastic positioning structure is used to provide a positioning and holding force when the dust collection box is inserted into the pull-out position.

[0015] Preferably, the elastic positioning structure includes two elastic arms disposed opposite to each other on the bottom wall of the pull-out position and a positioning protrusion disposed on the bottom surface of the dust collection box; when the dust collection box is pulled out into position in the pull-out position, the two elastic arms elastically clamp the positioning protrusion.

[0016] Preferably, the two elastic arms form an elastic clamping groove, which includes a tapered portion, a transition portion, and a flared portion connected in sequence. Along the insertion direction of the dust collection box, the width of the tapered portion gradually decreases, and the width of the flared portion gradually increases. The positioning protrusion includes a positioning portion, a connecting portion, and a blocking portion connected in sequence. The connecting portion has a structure with equal width, the positioning portion has a structure that is larger in the middle and smaller at both ends, and the width of the blocking portion gradually increases from the direction close to the connecting portion to the direction far away from the connecting portion. The positioning portion is inserted into the flared portion, the connecting portion is inserted into the transition portion, and the blocking portion is at least partially inserted into the tapered portion. The transition portion can prevent the blocking portion from entering the flared portion.

[0017] Preferably, the pull-out position has a space suitable for assembling the blade holder, and the left and right sides of the blade holder are provided with locking holes extending along the pull-out direction of the dust collection box. The inner wall of the pull-out position is provided with locking hooks corresponding to the positions of the locking holes, and the locking hooks engage with the locking holes to fix the blade holder.

[0018] Preferably, the tool holder has a connecting lug on its rear side, and the connecting lug is connected and fixed to the housing by fasteners.

[0019] The pet purifier designed in this application is easy to maintain. By setting a self-cleaning module including a rotatable annular filter and a scraper on the air inlet side of the casing, and in conjunction with a pull-out dust collection box, it can actively intercept and continuously scrape off pet hair and other pollutants attached to the surface of the annular filter, causing them to fall directly into the dust collection box. This effectively reduces the amount of hair entering the purifier and clogging the core filter module, preventing the filter module from experiencing a decline in filtration efficiency and odor adsorption function due to hair contamination, thus extending its service life. At the same time, users only need to clean the dust collection box periodically, which greatly simplifies maintenance and reduces the frequency of filter replacement and operating costs. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a pet air purifier that is easy to maintain, provided in an embodiment of this application.

[0021] Figure 2 yes Figure 1 Exploded view.

[0022] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0023] Figure 4 This is an exploded view of the easy-to-maintain pet air purifier provided in the embodiments of this application.

[0024] Figure 5 This is an exploded view of the cleaning module provided in the embodiments of this application.

[0025] Figure 6 This is a vertical cross-sectional view of the easy-to-maintain pet air purifier provided in the embodiments of this application.

[0026] Figure 7 yes Figure 6 Enlarged diagram of point B in the middle.

[0027] Figure 8 This is a three-dimensional structural diagram of the dust collection module provided in the embodiments of this application.

[0028] The components include: housing 10, socket 11, elastic clamping piece 12, V-shaped positioning groove 13, pull-out position 14, hook 15, self-cleaning module 20, mounting bracket 21, pin 211, snap fastener 212, V-shaped positioning protrusion 213, annular filter 22, drive mechanism 23, active roller 24, driven roller 25, dust collection module 30, dust collection box 31, dust collection bag 311, knife holder 32, collection port 321, card hole 322, connecting ear 323, scraper 33, elastic positioning structure 40, elastic arm 41, fixed elastic clamping groove 411, tapered part 412, transition part 413, flared part 414, positioning protrusion 42, positioning part 421, connecting part 422, blocking part 423, door cover 50, and purification module 60. Detailed Implementation

[0029] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0030] like Figure 1 , Figure 2 As shown, the easy-to-maintain pet air purifier described in this embodiment mainly includes a housing 10, a self-cleaning module 20, and a dust collection module 30.

[0031] Specifically, the housing 10 serves as the overall support structure for the purifier. It can be integrally molded from high-strength engineering plastic using injection molding, or assembled from metal sheets. The housing 10 has an air inlet and an air outlet, as well as an air duct connecting the air inlet and the air outlet. A fan is installed inside the housing 10, which drives airflow from the air inlet to the air outlet during operation. The air inlet of the housing 10 can be located on the front side, and the air outlet can be located on the top side. The fan can be a centrifugal fan.

[0032] The self-cleaning module 20 is located on the air inlet side of the housing 10, that is, at the air inlet of the air duct. The dust collection module 30 includes a dust collection box 31 located below the self-cleaning module 20 and a blade holder 32 connected to the housing 10. Specifically, the dust collection box 31 can be pulled out and installed on the housing 10 for convenient subsequent maintenance. The frame 10 also houses a purification module 60, which is located in the air duct and behind the self-cleaning module 20. The purification module 60 specifically uses a combination of high-resistance HEPA and activated carbon composite filters to deeply purify fine particulate matter and odors in the air.

[0033] See Figures 2 to 5 The self-cleaning module 20 includes a mounting bracket 21 detachably connected to the housing 10, an annular filter 22 rotatably mounted on the mounting bracket 21, and a drive mechanism 23 for driving the annular filter 22 to rotate. In this embodiment, the self-cleaning module 20 is specifically arranged vertically at the air inlet of the air duct, that is, the annular filter 22 is in a vertical state, or arranged at a slight angle to the vertical direction, such as the angle with the vertical direction is set in the range of 0.5 degrees to 3 degrees; and the annular filter 22 can be an endless ring-shaped structure made of nylon mesh, plastic mesh with a certain pore size, or other flexible materials suitable for efficiently intercepting pet hair, dander, and other attachments.

[0034] A scraper 33 is fixed on the blade holder 32. The scraper 33 is in close contact with the outer surface of the annular filter screen 22 to scrape off the deposits on the annular filter screen 22 and allow them to fall into the dust collection box 31. The scraper 33 is specifically located below and in close contact with the annular filter screen 22, or located on the front side of the annular filter screen 22 near the bottom. As the annular filter screen 22 rotates continuously under the drive of the drive mechanism 23, the fixed scraper 33 can continuously scrape off the deposits from the filter screen surface. These deposits then fall into the dust collection box 31 below, thereby realizing automatic cleaning of the filter screen and centralized collection of deposits, greatly facilitating subsequent maintenance operations. The scraping element 33 can be an elastic scraper, such as a silicone strip with good elasticity and wear resistance. The silicone strip is fixed obliquely to the blade holder 32 to achieve gentle scraping of the filter screen surface. Alternatively, a brush strip with fine bristles can be used to enhance the peeling effect on fine fibrous deposits while protecting the filter screen surface from excessive wear. In this embodiment, the angle between the scraping element 33 and the vertical direction, i.e., the tilt angle, can be set to 5 degrees to 40 degrees, specifically 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, etc.

[0035] In another preferred embodiment, for convenient collection and disposal of these scraped-off attachments, such as... Figure 6 , Figure 7As shown, the dust collection box 31 also contains a dust collection bag 311, which is used to collect and store various deposits scraped off by the scraper 33. Users can conveniently remove the dust collection box 31 periodically to clean the dust collection bag 311. In this embodiment, the dust collection bag 311 can also be made of a waterproof and washable material. In this case, after removing the dust collection bag 311, the user can empty the deposits inside, then clean and dry the dust collection bag 311 before reinstalling it back into the dust collection box 31, thereby achieving the reuse of the dust collection bag 311 and reducing consumable costs.

[0036] In some embodiments, such as Figure 5 , Figure 6 As shown, a drive roller 24 and a driven roller 25 are rotatably mounted on the upper and lower edges of the mounting bracket 21, respectively. An annular filter screen 22 is detachably mounted on the drive roller 24 and the driven roller 25. The drive mechanism 23 is connected to the drive roller 24 for transmission. Specifically, the overall shape of the annular filter screen 22 can be as follows: Figure 6 The ring-shaped structure shown resembles a flat runway. It forms an arc-shaped segment around the drive roller 24 and the driven roller 25, while a straight segment with relatively parallel front and rear sides is formed between the two rollers. The drive mechanism 23 can be a motor, which drives the drive roller 24 to rotate at a preset speed through a gear transmission assembly or a synchronous belt transmission assembly. This causes the annular filter screen 22 to rotate continuously and cyclically on the mounting frame 21, ensuring that the filter screen surface can receive airflow evenly and be cleaned.

[0037] In some embodiments, such as Figure 2 , Figure 5 As shown, the mounting bracket 21 has a pin 211 on its lower edge, and the housing 10 has a socket 11 corresponding to the position of the pin 211; the mounting bracket 21 has a buckle 212 on its upper edge rear side, and the housing 10 has an elastic clamping piece 12 corresponding to the position of the buckle 212; wherein, the pin 211 is adapted to be inserted into the socket 11, and the buckle 212 is adapted to be inserted into the elastic clamping piece 12, so that the self-cleaning module 20 and the housing 10 can be detachably connected. Using this structural design, when assembling the self-cleaning module 20, the user first aligns the pins 211 at the bottom of the mounting bracket 21 with and inserts them into the sockets 11 on the housing 10 to achieve initial positioning of the lower part of the module. Then, the user pushes the upper part of the mounting bracket 21 upward or inward so that the buckle 212 on the rear side of the top contacts and pushes open the elastic clamping piece 12. When the buckle 212 passes the specific locking point of the elastic clamping piece 12, the elastic clamping piece 12 rebounds and firmly clamps or locks the buckle 212 in it.

[0038] In this embodiment, as Figure 1 , Figure 2As shown, a door cover 50 can also be provided on the air inlet side of the housing 10. The door cover 50 can cover most of the self-cleaning module 20 from the front. At the same time, the left and right sides of the door cover 50 are spaced apart from the housing 10, forming airflow inlets on the left and right sides of the door cover 50, i.e., air inlets. In this embodiment, the door cover 50 itself is designed as a detachable or openable structure, for example, it can be installed by a snap-fit ​​connection, or one end of the door cover 50 can be rotatably connected to the housing 10, and the door cover 50 and the housing 10 can be detachably connected.

[0039] In some embodiments, such as Figure 2 , Figure 5 As shown, V-shaped positioning protrusions 213 are respectively provided on the rear side of the left and right edges of the mounting bracket 21, and the V-shaped positioning protrusions 213 are located near the bottom of the mounting bracket 21; the housing 10 is provided with a V-shaped positioning groove 13 corresponding to the position of the V-shaped positioning protrusions 213, and the V-shaped positioning protrusions 213 and the V-shaped positioning grooves 13 cooperate with each other. In this embodiment, the V-shaped positioning protrusion 213 can be a protrusion or rib integrally formed on the mounting bracket 21 and having a specific V-shaped contour. The tip of its "V" or the guiding slope faces the insertion direction. That is, during the installation of the self-cleaning module 20, when the user pushes the bottom of the mounting bracket 21 into the housing 10, due to the guiding effect of the V-shaped slope, even if there is a certain error in the initial alignment, the V-shaped positioning protrusion 213 will be automatically guided by the inclined wall of the V-shaped positioning groove 13 and gradually slide into the center position of the groove bottom, reducing the installation difficulties that may be caused by misalignment.

[0040] In some embodiments, such as Figure 2 , Figure 6 , Figure 7 , Figure 8 As shown, the blade holder 32 is provided with a collection port 321 that communicates with the dust collection box 31. The inlet of the collection port 321 is a tapering opening that is wider at the top and narrower at the bottom. Specifically, the collection port 321 is directly below the working area of ​​the scraper 33 to ensure that the scraped-off material can be smoothly guided into the dust collection box 31. The tapering opening of the collection port 321 is designed to guide the material to fall and reduce the possibility of the material accumulating or clogging at the inlet.

[0041] To ensure that the dust collection box 31 can be stably held in place when inserted into the pull-out position 14, and to provide a certain degree of damping and positioning feel during pulling out, in some embodiments, such as Figure 2 , Figure 4 As shown, the housing 10 is provided with a pull-out position 14 suitable for assembling the dust collection box 31. An elastic positioning structure 40 is provided between the pull-out position 14 and the dust collection box 31. The elastic positioning structure 40 is used to provide a positioning and holding force when the dust collection box 31 is inserted into the pull-out position 14 and is in place.

[0042] In some embodiments, such as Figure 2 , Figure 4 As shown, the elastic positioning structure 40 includes two elastic arms 41 disposed opposite to each other on the bottom wall of the pull-out position 14. These two elastic arms 41 are made of a material with a certain elasticity, such as plastic or metal springs, and a positioning protrusion 42 disposed on the bottom surface of the dust collection box 31. When the dust collection box 31 is pulled into place in the pull-out position 14, the two elastic arms 41 elastically clamp the positioning protrusion 42, thereby providing a positioning holding force to prevent the dust collection box 31 from accidentally loosening or slipping out.

[0043] In one specific embodiment, such as Figure 3 , Figure 4 As shown, two elastic arms 41 form an elastic clamping groove 411. The elastic clamping groove 411 includes a tapered portion 412, a transition portion 413, and a flared portion 414 connected in sequence. Along the insertion direction of the dust collection box 31, the width of the tapered portion 412 gradually decreases for clamping, while the width of the flared portion 414 gradually increases for guiding. Correspondingly, the positioning protrusion 42 includes a positioning portion 421, a connecting portion 422, and a blocking portion 423 connected in sequence. The connecting portion 422 has a structure with equal width, allowing it to smoothly slide through the transition portion 413. The positioning portion 421 has a structure that is larger in the middle and smaller at both ends. The width of the blocking portion 423 gradually increases from the direction close to the connecting portion 422 to the direction away from the connecting portion 422. When the dust collection box 31 is inserted into the pull-out position 14, the positioning part 421 is inserted into the flared part 414, the connecting part 422 is inserted into the transition part 413, the blocking part 423 is at least partially inserted into the tapered part 412, and the transition part 413 can prevent the blocking part 423 from entering the flared part 414.

[0044] In some embodiments, such as Figure 2 , Figure 4 , Figure 8 As shown, the pull-out position 14 has a space suitable for assembling the tool holder 32. Both sides of the tool holder 32 are provided with locking holes 322 extending along the pulling direction of the dust collection box 31. The inner wall of the pull-out position 14 is provided with hooks 15 corresponding to the positions of the locking holes 322. The hooks 15 engage with the locking holes 322 to fix the tool holder 32. Through the engagement of the hooks 142 with the locking holes 322, the tool holder 32 can be fixed to the housing 10.

[0045] like Figures 6 to 8 As shown, the tool holder 32 has connecting ears 323 on its rear side, which are connected and fixed to the housing 10 by fasteners. These connecting ears 323 have through holes, which can be connected and fixed to the corresponding structure of the housing 10 by fasteners such as screws, further enhancing the stability and reliability of the tool holder 32 installation.

[0046] The pet purifier provided in this application provides an easy-to-maintain device. By incorporating a self-cleaning module including a rotatable annular filter and a scraper on the air inlet side of the casing, and in conjunction with a pull-out dust collection box, it can actively intercept and continuously scrape off pet hair and other contaminants adhering to the surface of the annular filter, causing them to fall directly into the dust collection box. This effectively reduces the amount of hair entering the purifier and clogging the core filter module, preventing a decrease in filtration efficiency and odor adsorption function of the filter module due to hair contamination, thus extending its service life. At the same time, users only need to clean the dust collection box periodically, greatly simplifying maintenance and reducing the frequency of filter replacement and operating costs.

[0047] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pet purifier which is easy to maintain, characterized in that, include: chassis; The self-cleaning module is located on the air inlet side of the housing; The dust collection module includes a dust collection box that can be pulled out and installed on the housing, and a knife holder connected to the housing; The self-cleaning module includes a mounting bracket detachably connected to the housing, an annular filter screen rotatably mounted on the mounting bracket, and a drive mechanism for driving the annular filter screen to rotate; a scraping component is fixed on the blade holder, and the scraping component is in close contact with the outer mesh surface of the annular filter screen to scrape off the adhering material on the annular filter screen and make it fall into the dust collection box.

2. The pet purifier convenient to maintain according to claim 1, characterized in that, The mounting frame has an active roller and a driven roller rotatably mounted on its upper and lower edges, respectively. The annular filter screen is detachably mounted on the active roller and the driven roller, and the drive mechanism is connected to the active roller in a transmission manner.

3. The pet decontamination device of claim 1, wherein, The mounting bracket has pins on its lower edge, and the housing has sockets corresponding to the pin positions. The mounting bracket has buckles on its upper edge rear side, and the housing has elastic clamping pieces corresponding to the buckle positions. The pins are adapted to be inserted into the sockets, and the buckles are adapted to be inserted into the elastic clamping pieces, so that the self-cleaning module can be detachably connected to the housing.

4. The pet decontamination device of claim 1, wherein, The mounting bracket has V-shaped positioning protrusions on the rear sides of its left and right edges, and the V-shaped positioning protrusions are located near the bottom of the mounting bracket; the housing has V-shaped positioning grooves corresponding to the positions of the V-shaped positioning protrusions, and the V-shaped positioning protrusions cooperate with the V-shaped positioning grooves.

5. The pet decontamination device of claim 1, wherein, The blade holder is provided with a collection port that communicates with the dust collection box, and the entrance of the collection port is a tapering opening that is wider at the top and narrower at the bottom.

6. The easy-to-maintain pet air purifier according to claim 1, characterized in that, The housing is provided with a pull-out position suitable for assembling the dust collection box. An elastic positioning structure is provided between the pull-out position and the dust collection box. The elastic positioning structure is used to provide a positioning and holding force when the dust collection box is inserted into the pull-out position.

7. The easy-to-maintain pet air purifier according to claim 6, characterized in that, The elastic positioning structure includes two elastic arms disposed opposite to each other on the bottom wall of the pull-out position and a positioning protrusion disposed on the bottom surface of the dust collection box; when the dust collection box is pulled out into position in the pull-out position, the two elastic arms elastically clamp the positioning protrusion.

8. The easy-to-maintain pet air purifier according to claim 7, characterized in that, The two elastic arms form an elastic clamping groove, which includes a tapered portion, a transition portion, and a flared portion connected in sequence. Along the insertion direction of the dust collection box, the width of the tapered portion gradually decreases, and the width of the flared portion gradually increases. The positioning protrusion includes a positioning portion, a connecting portion, and a blocking portion connected in sequence. The connecting portion has a structure with equal width, the positioning portion has a structure that is larger in the middle and smaller at both ends, and the width of the blocking portion gradually increases from the direction close to the connecting portion to the direction far away from the connecting portion. The positioning portion is inserted into the flared portion, the connecting portion is inserted into the transition portion, and the blocking portion is at least partially inserted into the tapered portion. The transition portion can prevent the blocking portion from entering the flared portion.

9. The easy-to-maintain pet air purifier according to claim 6, characterized in that, The pull-out position has a space suitable for assembling the blade holder. Both sides of the blade holder are provided with locking holes extending along the pull-out direction of the dust collection box. The inner wall of the pull-out position is provided with hooks corresponding to the positions of the locking holes. The hooks engage with the locking holes to fix the blade holder.

10. The easy-to-maintain pet air purifier according to any one of claims 1 to 8, characterized in that, The tool holder is provided with a connecting lug on its rear side, and the connecting lug is connected and fixed to the housing by fasteners.

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