Detachable air inlet grille and air purifier

Abstract

A peripheral wall is arranged on the periphery of a grille body, a first extension plane portion extending outwards from the peripheral wall is arranged on the upper end face of the peripheral wall, and a second extension plane portion extending outwards from the peripheral wall is arranged on the lower end face of the peripheral wall. The first extension plane part and the second extension plane part are in sliding fit with a sliding groove structure in the air purifier, and convenience is provided for sliding insertion of the air inlet grille; meanwhile, the first extension plane part and the second extension plane part are beneficial to forming surface contact between the air inlet grille and the inner wall of the sliding groove and the end face of the filter element, and the sealing effect between the air inlet grille and the sliding groove and the end face of the filter element is guaranteed. The utility model further provides an air purifier which adopts the detachable air inlet grille, so that a fan in an air duct is convenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air purification, especially to a detachable air inlet grille and air purifier. BACKGROUND

[0002] The air inlet grille in the air purifier is a protective structure for blocking the filter element and the fan, which protects the user from the safety hazard caused by direct contact with the fan during maintenance / replacement of the filter element. Generally, the air inlet grille and the inner wall of the shell / air duct are fixedly connected together, which is not conducive to the maintenance of the fan in the air duct. SUMMARY

[0003] In view of the problems existing in the prior art, the main purpose of the utility model is to provide a detachable air inlet grille, which is beneficial to realize the sliding insertion and installation of the air inlet grille and ensure the sealing between the air inlet grille, the air duct and the filter element.

[0004] To achieve the above-mentioned purpose, the detachable air inlet grille comprises a grille body, the grille body has a peripheral wall, the upper end face of the peripheral wall has a first outwardly extending plane part extending outward from the peripheral wall, and the lower end face of the peripheral wall has a second outwardly extending plane part extending outward from the peripheral wall.

[0005] In some optional embodiments, the grille body is recessed along its axial direction from the first outwardly extending plane part to the second outwardly extending plane part.

[0006] In some optional embodiments, the first outwardly extending plane part and the second outwardly extending plane part have a reinforcing rib structure therebetween.

[0007] In some optional embodiments, the front side of the grille body has a decorative plate, and the handle position is arranged on the decorative plate.

[0008] In some optional embodiments, the first outwardly extending plane part is provided with a screw hole position.

[0009] The utility model also provides an air purifier, which comprises a shell, an air duct, a filter cavity and a filter element arranged in the filter cavity are arranged in the shell, the air duct and the filter cavity have a sliding groove therebetween, and the detachable air inlet grille as described above is arranged in the sliding groove.

[0010] In some optional embodiments, the air duct comprises an air duct body and an air duct bottom plate arranged at the air inlet of the air duct body, the inner wall of the shell is provided with the radial protrusion corresponding to the air duct bottom plate, the radial protrusion is arranged opposite to the air duct bottom plate, and the sliding groove is formed.

[0011] In some optional embodiments, the air duct bottom plate and the air duct body have a plurality of buckle position structures therebetween and are connected through the buckle position structures.

[0012] In some optional embodiments, a plurality of screw hole structures are provided between the air duct bottom plate and the air duct body, and the air duct bottom plate is connected to the air duct body through the screw hole structures.

[0013] In some optional embodiments, the filter element comprises an upper cover and a lower cover, the upper cover is provided with a first sealing ring, and the lower cover is provided with a second sealing ring.

[0014] In some optional embodiments, the bottom of the filter cavity is provided with a base, and the base is provided with an elastic support cover.

[0015] Compared with the prior art, the detachable air inlet grille provided by the utility model has a peripheral wall on the grille body, the upper end surface of the peripheral wall has a first outwardly extending plane part extending outward from the peripheral wall, and the lower end surface of the peripheral wall has a second outwardly extending plane part extending outward from the peripheral wall. The first outwardly extending plane part and the second outwardly extending plane part are beneficial to forming a sliding fit with the sliding groove structure in the air purifier, and provide convenience for realizing the sliding insertion of the air inlet grille. At the same time, the first outwardly extending plane part and the second outwardly extending plane part are beneficial to forming a surface contact between the air inlet grille and the inner wall of the sliding groove and the end surface of the filter element, and ensure the sealing effect between the air inlet grille and the sliding groove and the end surface of the filter element.

[0016] In addition, the utility model also provides an air purifier, adopts the detachable air inlet grille, and can maintain the fan in the air duct by extracting the air inlet grille, and improves the convenience of motor maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structural schematic diagram of the air inlet grille provided by the utility model embodiment is shown in the figure;

[0018] Figure 2 A sectional schematic diagram of the air purifier provided by the utility model embodiment is shown in the figure;

[0019] Figure 3 A structural schematic diagram of the air duct in the air purifier is shown in the figure;

[0020] Figure 4 A sealing schematic diagram of the air inlet grille and the sliding groove and the filter element is shown in the figure;

[0021] Figure 5 A sealing schematic diagram of the filter element and the elastic support cover is shown in the figure. DETAILED DESCRIPTION

[0022] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0023] Embodiment 1

[0024] With reference to Figure 1 In the embodiments of the present application, a detachable air inlet grille is provided. The air inlet grille comprises a grille body 41, and the grille body 41 has a peripheral wall along the axial direction of the grille body. The grille strips 41a of the grille body are connected to the peripheral wall. The upper end surface of the peripheral wall extends outward to form a first outwardly extending flat portion 41b, and the lower end surface of the peripheral wall extends outward to form a second outwardly extending flat portion 41c. The first outwardly extending flat portion 41b and the second outwardly extending flat portion 41c are oppositely arranged to form a plug-in portion, so that the grille body can be slidably plugged into the air inlet position of the air purifier in a plug-in manner, and the detachable air inlet grille is provided for the maintenance of the fan above the air inlet grille.

[0025] The air inlet grille is arranged between the air duct and the filter element. When the air inlet grille is installed in a sliding plug-in manner, there is a certain air leakage. In this embodiment, the upper end surface and the lower end surface of the peripheral wall of the grille body 41 extend outward to form the first outwardly extending flat portion 41b and the second outwardly extending flat portion 41c, respectively. The first outwardly extending flat portion 41b and the second outwardly extending flat portion 41c are flat without protrusions or depressions, which is beneficial to the formation of surface contact with the air duct and the filter element, and ensures the sealing effect between the air inlet grille and the air duct and the filter element.

[0026] With reference to Figure 1 In this embodiment, the grille body 41 is recessed along the axial direction thereof from the first outwardly extending flat portion 41b to the second outwardly extending flat portion 41c. The recessed grille body 41 can form a curved air inlet surface, which can increase the air inlet area and is beneficial to increasing the air inlet amount of the fan and realizing large air volume of the air purifier. During installation, the first outwardly extending flat portion 41b is attached to the lower end surface of the air duct, and the second outwardly extending flat portion 42b is combined with the upper end surface of the filter element. At this time, the grille body is recessed toward one end of the filter element, and the recessed space of the grille body can avoid the fan, so that the installation space between the grille body 41 and the air duct can be further compressed, which is beneficial to reducing the size of the air purifier.

[0027] With reference to Figure 1In the embodiment, the first and second extension plane portions 41b and 41c are provided with a reinforcing rib structure. Specifically, the reinforcing rib structure is composed of a plurality of reinforcing ribs 41d in a cross structure, which supports the space between the first and second extension plane portions 41b and 41c. This not only ensures the overall structural strength of the air inlet grille, but also reduces the weight of the air inlet grille.

[0028] With reference to the foregoing Figure 1 In the embodiment, the front side of the grille body 41 is provided with a decorative plate 42. Specifically, the front side of the grille body 41 refers to the side facing the user in the installed state of the air inlet grille. The decorative plate 42 is in the shape of a U as a whole and is inserted into the space between the first and second extension plane portions 41b and 41c on the front side of the grille body 41, so as to cover the exposed reinforcing ribs on the front side of the grille body 41 and at the two corner positions, thereby maintaining the integrity of the front side of the air inlet grille and making the part of the air inlet grille exposed to the outside smooth, flat, and aesthetically pleasing and not prone to dust accumulation. The two ends of the decorative plate 42 are provided with two first undercut portions 42b, and the reinforcing ribs 41d are provided with first locking hole portions 41e matched with the first undercut portions 42b. The decorative plate 42 is fixedly connected to the grille body 41 through the engagement of the first undercut portions 42b and the first locking hole portions 41e. The surface of the decorative plate 42 is free of mounting hole portions, so as not to damage the integrity of the surface of the decorative plate 42.

[0029] Meanwhile, the front side of the decorative plate 42 is also provided with a handle position 42a, so that the user can hold and pull out the air inlet grille. Specifically, in the embodiment, the handle position 42a is in the form of a groove, and the user can pull out the air inlet grille by pressing his fingers in the groove. Of course, the handle position can also be a U-shaped handle or other structure facilitating holding and pressing, and is not limited to a groove.

[0030] With reference to the foregoing Figure 1 In the embodiment, the first extension plane portion 41b is provided with a screw hole portion 41f. Specifically, the screw hole portion 41f is on the same side as the decorative plate 42. After the air inlet grille is inserted into place, a screw is passed through the screw hole portion 41f and locked to the shell of the air duct, so as to further fix the air inlet grille and avoid abnormal loosening of the air inlet grille. When the air inlet grille needs to be disassembled, the screw can be loosened and then removed. The screw hole portion 41f is located on the side of the decorative plate 42 and faces the user, which is also convenient for tightening or loosening the screw in the hole.

[0031] Embodiment 2

[0032] With reference to the foregoing Figure 2This utility model provides an air purifier, which includes a housing 10, an air duct 20, a filter chamber, and a filter element 50 within the filter chamber. A fan assembly 30 is provided within the air duct 20, and a sliding groove is formed between the air duct 20 and the filter chamber. An air inlet grille 40 is slidably disposed within the sliding groove. The specific structure of the air inlet grille 40 is described in Embodiment 1 and will not be repeated here. A base 60 is provided at the bottom of the filter chamber. The air inlet grille 40, the base 60, and the inner wall of the housing respectively constitute the upper cavity wall, lower cavity wall, and side cavity wall of the filter chamber.

[0033] By adopting the detachable air inlet grille 40, users can maintain the fan assembly 30 inside the air duct 20 by removing the air inlet grille 40, thus improving the convenience of fan maintenance.

[0034] See Figures 3-4 In this embodiment, the air duct 20 includes an air duct body 21 and an air duct base plate 22 disposed at the air inlet of the air duct body 21. The bottom of the air duct base plate 22 has a sliding mating plane 22a, which can form a surface contact with the first extended plane portion 41b at the upper end of the air inlet grille 40, thereby ensuring that the air inlet grille 40 and the air duct 20 can fit tightly together and improve the sealing performance of both. Radial protrusions 10a are provided on the inner walls of the left and right sides of the housing 10. The radial protrusions 10a extend into the housing 10 and are opposite to the bottom surface of the air duct base plate 22. The air duct base plate 22, the radial protrusions 10a, and the inner wall of the housing together form a sliding groove. During assembly, the side of the air inlet grille 40 can be inserted into the sliding groove to form a sliding fit with the housing 10, which facilitates the assembly and disassembly of the air inlet grille 40.

[0035] Continue to refer to Figure 3 In this embodiment, the duct base plate 22 and the duct body 21 have multiple first fastening structures. Specifically, second buckles 22b are protruding from the four sides of the duct base plate 22, and second fastening holes 21a are recessed on the lower peripheral wall of the duct body 21. Each second buckle 22b and the second fastening hole 21a forms a fastening structure, and the duct base plate 22 and the duct body 21 are effectively combined together through these four fastening structures.

[0036] Furthermore, the duct base plate 22 and the duct body 21 have multiple screw hole structures. Specifically, the duct base plate 22 has a first screw post 22c at each of its four corners, and four lugs 21b are provided on the outer wall of the duct body 21. Each lug 21b has a first screw hole corresponding to the first screw post. The engagement of the first screw post 22c and the first screw hole, along with the connection of the screws, further enhances the robustness of the connection between the duct base plate 22 and the duct body 21.

[0037] Continue to refer to Figure 4 and Figure 5In this embodiment, the filter element 50 includes an upper cover 51 disposed at the upper end of the filter element and a lower cover 52 disposed at the lower end of the filter element. A first annular groove 51a is provided on the surface of the upper cover 51, and a first sealing ring 511 is disposed within the first annular groove 51a. A portion of the first sealing ring 511 protrudes from the first annular groove 51a. When the filter element 50 is installed into the filter chamber, the second outer plane portion 41b of the air inlet grille 40 presses against the first sealing ring 511, improving the sealing between the filter element 50 and the air inlet grille 40. A second annular groove is provided on the surface of the lower cover 52, and a second sealing ring 521 is disposed within the second annular groove. A portion of the second sealing ring 521 protrudes from the second annular groove. When the filter element 40 is installed into the filter chamber, the base 60 presses against the lower cover 52 of the filter element 50, compressing the second sealing ring 521 to ensure the sealing between the filter element 50 and the base 60.

[0038] Continue to refer to Figure 5 In this embodiment, a resilient support cover 61 is provided on the base 60. Therefore, when the filter element 50 is installed into the filter chamber, the resilient support cover 61 provides an upward locking force to press against the first sealing ring 511 and the second sealing ring 521 on the filter element 50, and to hold against the air inlet grille 40, ensuring the seal between the base 60, the filter element 50, and the air inlet grille 40. When the filter element 50 is removed, the resilient support cover 61 can retract into the base 60 to facilitate removal.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to be used in accordance with the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A detachable air inlet grille comprising a grille body, characterized in that, The outer periphery of the grille body has a peripheral wall, the upper end surface of the peripheral wall has a first outwardly extending planar portion, and the lower end surface of the peripheral wall has a second outwardly extending planar portion.

2. The removable air inlet grille of claim 1, wherein, The grille body is recessed along its axial direction from the first outwardly extending planar portion to the second outwardly extending planar portion.

3. The removable air intake grille of claim 1, wherein, The first outwardly extending planar portion and the second outwardly extending planar portion have a reinforcing rib structure therebetween.

4. A removable air inlet grille according to any one of claims 1 to 3, wherein, The front side of the grille body has a decorative plate, and the decorative plate is provided with a handle position.

5. The removable air inlet grille of claim 4, wherein, The first outwardly extending planar portion is provided with a screw hole position.

6. An air cleaner comprising a housing, a duct, a filter chamber, and a filter element disposed in the filter chamber, wherein The air duct and the filter cavity have a sliding groove, and the sliding groove is slidably provided with a detachable air inlet grille according to any one of claims 1-5.

7. The air cleaner of claim 6, wherein, The air duct comprises an air duct body and an air duct bottom plate arranged at the air inlet of the air duct body; the inner wall of the shell is provided with a radial protrusion corresponding to the air duct bottom plate, the radial protrusion is arranged opposite to the air duct bottom plate, and the sliding groove is formed.

8. The air cleaner of claim 7, wherein, The air duct bottom plate and the air duct body have a plurality of buckle position structures and are connected through the buckle position structures.

9. The air cleaner according to claim 7 or 8, wherein The air duct bottom plate and the air duct body have a plurality of screw hole position structures and are connected through the screw hole position structures.

10. The air cleaner of claim 6, wherein, The filter element comprises an upper cover and a lower cover, the upper cover is provided with a first sealing ring, and the lower cover is provided with a second sealing ring.

11. The air cleaner of claim 10, wherein, The bottom of the filter cavity is provided with a base, and the base is provided with an elastic support cover.

Images