Air purifier with filter screen convenient to replace

By designing a removable cover and locking assembly in the air purifier, and using a button to slide the slider to disengage from the latch, the problem of inconvenient filter replacement is solved, making filter replacement convenient and easy to use.

CN224353178UActive Publication Date: 2026-06-12东莞哈索科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
东莞哈索科技有限公司
Filing Date
2025-05-08
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing air purifier filters are inconvenient to replace, and the cover is fixed with multiple screws, making disassembly and assembly difficult.

Method used

The cover is detachably connected to the housing. A button drives the slider to slide, causing the clip to disengage from the slider, thus opening the cover and replacing the filter. The structure is simple and easy to use.

🎯Benefits of technology

It enables convenient filter replacement, simplifies the operation process, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224353178U_ABST
    Figure CN224353178U_ABST
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Abstract

The utility model relates to a kind of air purifiers convenient to replace filter screen, including shell, cover plate, filter screen and locking assembly, cover plate is detachably connected in shell, filter screen is detachably installed in shell, cover plate cover is located in filter screen;Locking assembly includes button, slider, elastic member and buckle, button is slidably arranged in the side of shell, slider is slidably arranged in shell, button is used to drive slider to slide, one end of elastic member abuts against shell, the other end abuts against slider;One end of buckle is installed in cover plate, the other end selectively clamps slider.This air purifier convenient to replace filter screen is detachably connected in shell by cover plate, cover plate cover is located in filter screen;Make buckle disengage slider by button drive slider to slide, to disassemble cover plate, replace filter screen;This air purifier convenient to replace filter screen is simple in structure, convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, and in particular to an air purifier with an easy-to-replace filter. Background Technology

[0002] Air purifiers are essential household appliances for many families. They purify indoor air and ensure its cleanliness. However, the filters in air purifiers need to be replaced regularly. Currently, the filters are usually installed inside the housing and secured with a cover. However, the cover is fixed to the housing with multiple screws, making it inconvenient to install and remove. Utility Model Content

[0003] Therefore, it is necessary to provide an air purifier with an easy-to-replace filter to address the above problems.

[0004] An air purifier with an easy-to-replace filter includes a housing, a cover, a filter, and a locking assembly. The cover is detachably connected to the housing, and the filter is detachably installed inside the housing, with the cover covering the filter. The locking assembly includes a button, a slider, an elastic element, and a latch. The button is slidably disposed on one side of the housing, and the slider is slidably disposed on the housing. The button is used to drive the slider to slide. One end of the elastic element abuts against the housing, and the other end abuts against the slider. One end of the latch is installed on the cover, and the other end selectively engages the slider.

[0005] In one embodiment, the housing includes an outer shell, an inner shell, and a fixing base. The button passes through one side of the outer shell; the inner shell covers one side of the outer shell, and one end of the buckle passes through the inner shell; the filter screen is detachably installed on the inner shell, and the cover plate covers the side of the inner shell connected to the filter screen; the fixing base is installed on the side of the inner shell near the outer shell; one side of the slider slides on the outer shell, and the other side slides on the fixing base, and one end of the elastic member abuts against the inner shell.

[0006] In one embodiment, the housing further includes a retainer mounted on the fixed base; the slider includes a support portion, a limiting portion, and a tongue portion, one end of the support portion abutting one end of the elastic member, and the other end abutting the button; the limiting portion is connected to one side of the support portion and slides on the retainer; the tongue portion is mounted on the support portion and is used to engage the buckle.

[0007] In one embodiment, the fixing base includes a panel portion, a guide portion, a vertical plate portion, and a sleeve portion. The panel portion is provided with a slot to accommodate the buckle. The guide portion is installed on one side of the panel portion, and the slider is slidably disposed on the guide portion. The vertical plate portion is installed on one side of the panel portion, and the sleeve portion is installed on the vertical plate portion. One end of the elastic member abuts against the vertical plate portion, and the elastic member is sleeved on the sleeve portion.

[0008] In one embodiment, the cover plate includes a cover body, an edge, and a mounting base. The edge is disposed along the periphery of the cover body, the mounting base is mounted on the inner side of the cover body, and the buckle connects to the mounting base.

[0009] In one embodiment, the cover plate further includes an anti-detachment hook connected to the inner side of the cover body, and the inner shell has a receiving cavity to accommodate the anti-detachment hook.

[0010] In one embodiment, the cover is provided with a plurality of air inlets, the inner shell is provided with a through hole, and the outer shell is provided with an air outlet; the through hole connects the air inlets and the air outlet respectively.

[0011] In one embodiment, the cover plate further includes a mesh fabric that covers the cover body.

[0012] In one embodiment, a control component is also included, which includes a controller, a control switch, and a touch plate. The control switch is electrically connected to the controller, and one end of the touch plate is mounted on the control switch, while the other end is slidably disposed on the inner shell. The cover plate also includes a pressing block connected to the inner side of the cover plate, which is used to drive the touch plate to slide.

[0013] In one embodiment, a wind turbine is also included, which is electrically connected to the controller and is installed within the housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model of an air purifier with an easy-to-replace filter is detachably connected to the housing via a cover plate, which covers the filter. By pressing a button to move the slider, the latch is disengaged from the slider, thereby removing the cover plate and replacing the filter. This air purifier with an easy-to-replace filter has a simple structure and is convenient to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an air purifier with an easy-to-replace filter, as shown in the first embodiment of the present invention.

[0017] Figure 2 for Figure 1 An exploded view of an air purifier with an easy-to-replace filter is shown.

[0018] Figure 3 for Figure 2 Enlarged view of center circle A;

[0019] Figure 4 for Figure 2 A structural diagram from another angle;

[0020] Figure 5 for Figure 4 Enlarged view of center circle B;

[0021] Figure 6 This is a schematic diagram of the structure of an air purifier that facilitates filter replacement, as shown in the second embodiment of this utility model.

[0022] The meanings of the numbers in the attached diagram are as follows:

[0023] 100. Air purifiers with easy-to-replace filters;

[0024] 10. Housing; 11. Outer shell; 110. Air vent; 12. Inner shell; 121. Insertion hole; 122. Through hole; 123. Receiving cavity; 13. Fixing base; 131. Panel part; 132. Guide part; 133. Vertical plate part; 134. Sleeve part; 135. Groove; 14. Card seat; 141. Recess; 20. Cover plate; 21. Cover body; 211. Air inlet; 22. Edge; 23. Anti-detachment hook; 24. Pressing block; 30. Filter screen; 40. Locking assembly; 41. Button; 42. Slider; 421. Support part; 422. Limiting part; 423. Protruding tongue part; 424. Slide groove; 43. Elastic element; 44. Buckle; 50. Fan wheel; 60. Control assembly; 61. Control switch; 62. Touch plate;

[0025] 200. Air purifiers with easy-to-replace filters;

[0026] 20a, cover plate; 21a, cover body; 26a, mesh fabric. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Please refer to Figures 1 to 5 An air purifier 100 for easy filter replacement according to one embodiment of the utility model includes a housing 10, a cover plate 20, a filter 30, and a locking assembly 40. The cover plate 20 is detachably connected to the housing 10, and the filter 30 is detachably installed inside the housing 10, with the cover plate 20 covering the filter 30. The locking assembly 40 includes a button 41, a slider 42, an elastic element 43, and a buckle 44. The button 41 is slidably disposed on one side of the housing 10, and the slider 42 is slidably disposed on the housing 10. The button 41 is used to drive the slider 42 to slide. One end of the elastic element 43 abuts against the housing 10, and the other end abuts against the slider 42. One end of the buckle 44 is installed on the cover plate 20, and the other end selectively engages the slider 42. This air purifier 100, which facilitates filter replacement, is detachably connected to the housing 10 via a cover plate 20, which covers the filter 30. By using a button 41 to move the slider 42, the clip 44 is disengaged from the slider 42, thereby opening the cover plate 20 and replacing the filter 30.

[0034] like Figures 1 to 5 As shown, in this embodiment, the cover plate 20 is detachably connected to the housing 10, the filter screen 30 is detachably installed inside the housing 10, and the cover plate 20 covers the filter screen 30. Optionally, the housing 10 includes an outer shell 11, an inner shell 12, and a fixing seat 13. The button 41 passes through one side of the outer shell 11; the inner shell 12 covers one side of the outer shell 11, the filter screen 30 is detachably installed in the inner shell 12, and the cover plate 20 covers the side of the inner shell 12 connected to the filter screen 30; the fixing seat 13 is installed on the side of the inner shell 12 near the outer shell 11; further, the outer shell 11 is provided with an air vent 110; the inner shell 12 is provided with an insertion hole 121, a through hole 122, and a receiving cavity 123.

[0035] like Figure 3 As shown, the fixing base 13 includes a panel portion 131, a guide portion 132, a vertical plate portion 133, and a sleeve portion 134. The panel portion 131 has a slot 135, which connects to the insertion hole 121. The guide portion 132 is installed on one side of the panel portion 131, the vertical plate portion 133 is installed on one side of the panel portion 131, and the sleeve portion 134 is installed on the vertical plate portion 133. Figure 5 As shown, the housing 10 also includes a card holder 14, which is mounted on the fixing base 13. Optionally, the card holder 14 is provided with a groove 141.

[0036] like Figure 2 As shown, the cover plate 20 includes a cover body 21, an edge 22, and a mounting base (not shown). The edge 22 is arranged along the periphery of the cover body 21, and the mounting base is installed on the inner side of the cover body 21. Optionally, the cover body 21 has multiple air inlets 211, and through holes 122 connect the air inlets 211 and air outlets 110 respectively to form an air duct. There are two mounting bases. Further, the cover plate 20 also includes an anti-detachment hook 23 connecting to the inner side of the cover body 21, and a receiving cavity 123 is used to receive the anti-detachment hook 23. Optionally, there are two receiving cavities 123 and two anti-detachment hooks 23, and they correspond one-to-one. The cover plate 20 also includes a pressing block 24 connecting to the inner side of the cover body 21. Optionally, the pressing block 24 is disposed between two anti-detachment hooks 23.

[0037] like Figure 1 and Figure 5 As shown, the locking assembly 40 includes a button 41, a slider 42, an elastic element 43, and a latch 44. The button 41 is slidably disposed on one side of the housing 10, and the slider 42 is slidably disposed on the housing 10. The button 41 is used to drive the slider 42 to slide. One end of the elastic element 43 abuts against the housing 10, and the other end abuts against the slider 42. One end of the latch 44 is installed on the cover plate 20, and the other end selectively latches against the slider 42. Optionally, the button 41 is slidably disposed on the outer shell 11, one side of the slider 42 is slidably disposed on the card seat 14, and the other side is slidably disposed on the fixing seat 13; one end of the elastic element 43 abuts against the inner shell 12. Further, the slider 42 is slidably disposed on the guide portion 132; one end of the elastic element 43 abuts against the upright plate portion 133, and the elastic element 43 is sleeved on the sleeve portion 134. In one embodiment, one end of the latch 44 passes through the inner shell 12; optionally, the latch 44 is connected to the mounting base; the latch 44 passes through the insertion hole 121 and the slot 135. Furthermore, the end of the buckle 44 away from the mounting base is arc-shaped; there are two buttons 41, two sliders 42 and two buckles 44, and they correspond one to one. The two buttons 41 are respectively slidably mounted on both sides of the outer casing 11.

[0038] Please check again. Figure 5 The slider 42 includes a support portion 421, a limiting portion 422, and a protruding tongue portion 423. One end of the support portion 421 abuts against one end of the elastic member 43, and the other end abuts against the button 41. The limiting portion 422 is connected to one side of the support portion 421 and slides on the card holder 14. The protruding tongue portion 423 is installed on the support portion 421 and is used to engage the buckle 44. Optionally, the groove 141 is used to accommodate the limiting portion 422; a sliding groove 424 is provided on one side of the support portion 421 to accommodate the guide portion 132; furthermore, the end of the limiting portion 422 that connects to the buckle 44 is arc-shaped.

[0039] like Figure 4As shown, the air purifier 100 with easy filter replacement also includes a fan 50 installed inside the housing 10. The air purifier 100 with easy filter replacement also includes a control assembly 60, which includes a controller (not shown), a control switch 61, and a touch panel 62. The control switch 61 is electrically connected to the controller. One end of the touch panel 62 is mounted to the control switch 61, and the other end slides on the inner housing 12. A pressing block 24 is used to slide the touch panel 62, thereby triggering the control switch 61. Optionally, the fan 50 is electrically connected to the controller. When removing the cover 20, the cover 20 needs to be flipped, thereby forcing the pressing block 24 to slide the touch panel 62, which in turn triggers the control switch 61, stopping the fan 50 from operating and preventing accidental injury to the operator while the cover 20 is being removed.

[0040] When the cover plate 20 closes the housing 10, the anti-disengagement hook 23 is inserted into the receiving cavity 123. Then, the cover body 21 is pressed down to one end of the connecting buckle 44, so that one end of the buckle 44 passes through the insertion hole 121 and the groove 135. Then, one end of the buckle 44 abuts against the protruding tongue 423. As the cover body 21 is pressed down further, the elastic element 43 is forced to deform until one end of the buckle 44 disengages from the protruding tongue 423. Then, under the rebound action of the elastic element 43, the protruding tongue 423 engages with one end of the buckle 44.

[0041] When the cover plate 20 needs to be removed, press the button 41 simultaneously. The button 41 drives the slider 42 to slide towards the upright plate 133 until the protruding tongue 423 disengages from the buckle 44. Then pull one end of the cover plate 20 connecting buckle 44 to make the end of the cover plate 20 connected to the anti-disengagement hook 23 rotate around one end of the inner shell 12 until the buckle 44 disengages from the inner shell 12. At the same time, as the cover plate 20 rotates, the pressing block 24 presses down the touch plate 62, which in turn triggers the control switch 61 to stop the impeller 50 from operating. Finally, remove the filter screen 30 from the inner shell 12.

[0042] Example 2:

[0043] Please see Figure 6 The second embodiment of the present invention provides an air purifier 200 with an easy-to-replace filter. This embodiment is similar to the air purifier 100 with an easy-to-replace filter in the first embodiment. The difference is that the cover plate 20a in this embodiment also includes a mesh cloth 26a, which is placed on the cover body 21a. The mesh cloth 26a can both prevent dust and provide an aesthetic effect.

[0044] The air purifier 100 of this utility model, which facilitates filter replacement, is detachably connected to the housing 10 via a cover plate 20, which covers the filter 30. By using a button 41 to drive the slider 42 to slide, the buckle 44 is disengaged from the slider 42, thereby opening the cover plate 20 and replacing the filter 30. This air purifier 100, which facilitates filter replacement, has a simple structure and is easy to use.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An air purifier with an easy-to-replace filter, characterized in that, The device includes a housing, a cover plate, a filter screen, and a locking assembly. The cover plate is detachably connected to the housing, and the filter screen is detachably installed inside the housing, with the cover plate covering the filter screen. The locking assembly includes a button, a slider, an elastic element, and a buckle. The button is slidably disposed on one side of the housing, and the slider is slidably disposed on the housing. The button is used to drive the slider to slide. One end of the elastic element abuts against the housing, and the other end abuts against the slider. One end of the buckle is installed on the cover plate, and the other end selectively engages the slider.

2. The air purifier with easy filter replacement according to claim 1, characterized in that, The housing includes an outer shell, an inner shell, and a fixing base. The button passes through one side of the outer shell. The inner shell covers one side of the outer shell, and one end of the buckle passes through the inner shell. The filter screen is detachably installed on the inner shell, and the cover plate covers the side of the inner shell connected to the filter screen. The fixing base is installed on the side of the inner shell near the outer shell. One side of the slider slides on the outer shell, and the other side slides on the fixing base. One end of the elastic element abuts against the inner shell.

3. The air purifier with easy filter replacement according to claim 2, characterized in that, The housing also includes a retainer, which is mounted on the fixed base; the slider includes a support portion, a limiting portion and a protruding tongue portion, one end of the support portion abuts against one end of the elastic element and the other end abuts against the button; the limiting portion is connected to one side of the support portion and slides on the retainer; the protruding tongue portion is mounted on the support portion and is used to engage the buckle.

4. The air purifier with easy filter replacement according to claim 2, characterized in that, The fixing base includes a panel, a guide, a vertical plate, and a sleeve. The panel has a slot to accommodate the buckle. The guide is installed on one side of the panel, and the slider slides on the guide. The vertical plate is installed on one side of the panel, and the sleeve is installed on the vertical plate. One end of the elastic member abuts against the vertical plate, and the elastic member is sleeved on the sleeve.

5. The air purifier with an easy-to-replace filter according to claim 2, characterized in that, The cover plate includes a cover body, an edge, and a mounting base. The edge is arranged along the periphery of the cover body, the mounting base is installed on the inner side of the cover body, and the buckle connects the mounting base.

6. The air purifier with an easy-to-replace filter according to claim 5, characterized in that, The cover plate also includes an anti-detachment hook connected to the inner side of the cover body, and the inner shell is provided with a receiving cavity to accommodate the anti-detachment hook.

7. The air purifier with an easily replaceable filter according to claim 5, characterized in that, The cover is provided with multiple air inlets, the inner shell is provided with through holes, and the outer shell is provided with air outlets; the through holes are respectively connected to the air inlets and the air outlets.

8. The air purifier with an easily replaceable filter according to claim 5, characterized in that, The cover plate also includes a mesh fabric, which is disposed on the cover body.

9. The air purifier with an easy-to-replace filter according to claim 5, characterized in that, It also includes a control component, which includes a controller, a control switch and a touch plate. The control switch is electrically connected to the controller. One end of the touch plate is mounted on the control switch and the other end is slidably disposed on the inner shell. The cover plate also includes a pressing block connected to the inner side of the cover plate, which is used to drive the touch plate to slide.

10. The air purifier with an easily replaceable filter according to claim 9, characterized in that, It also includes a wind turbine installed inside the housing, the wind turbine being electrically connected to the controller.