Foldable air filter

Abstract

The utility model provides a foldable air filter, which comprises a folded medium filter, which is provided with a first end, a second end and a foldable folded medium located between the first end and the second end, and the folded medium is used for filtering particulate matters in air; the foldable structure is provided with a first connecting end connected with the first end and a second connecting end connected with the second end, the foldable structure enables the fold type medium filter to have a folded state and an unfolded state, when the fold type medium filter is in the folded state, the fold type medium is driven to be folded into a first size, and when the fold type medium filter is in the unfolded state, the fold type medium filter is unfolded. When the folded medium is in the stretching state, the folded medium is stretched to a second size, and the first size is smaller than the second size. Due to the fact that the foldable structure is used for supporting the fold type medium filter, supporting forming of the air filter can be achieved before the air filter is installed in air purification equipment, and the installation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air purification, and in particular to a foldable air filter. BACKGROUND

[0002] Air filters are usually provided in air purification equipment to filter particulate matters in air. Most of the air filters on the market have slide rail designs at the top and bottom. When installing, the user needs to align the slide rails of the air filter with the tracks on the air purification equipment for suspending the top and bottom of the air filter and push them in. However, when pushing the air filter into the tracks, the structure of the air filter will shake, the tracks are difficult to see directly, and the slide rails of the air filter often do not align with the tracks on the air purification equipment. The installation of such foldable air filters is relatively troublesome. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a foldable air filter to solve the problems in the related art, and the technical solutions are as follows.

[0004] Embodiments of the present application provide a foldable air filter, which comprises:

[0005] a pleated media filter having a first end, a second end, and a foldable pleated media located between the first end and the second end, the pleated media being configured to filter particulate matters in air;

[0006] a foldable structure having a first connecting end connected to the first end and a second connecting end connected to the second end, the foldable structure enabling the pleated media filter to have a folded state and an extended state, when in the folded state, the pleated media is folded into a first size, and when in the extended state, the pleated media is extended into a second size, the first size being smaller than the second size.

[0007] Optionally, the foldable structure comprises at least two groups of support structures, each group of support structures comprising a first support structure and a second support structure, wherein one end of the first support structure is configured as the first connecting end, the other end of the first support structure is connected to one end of the second support structure, and the other end of the second support structure is configured as the second connecting end.

[0008] When the included angle between the first support structure and the second support structure is substantially 180°, the pleated media filter is in the extended state; and when the included angle between the first support structure and the second support structure is less than 160°, the pleated media filter is in the folded state.

[0009] Optionally, at least two groups of support structures are distributed on both sides of the pleated medium filter.

[0010] Optionally, the foldable structure comprises four groups of support structures, two groups of the support structures are located at different positions on one side of the pleated medium filter, and two groups of the support structures are located at different positions on the other side of the pleated medium filter.

[0011] Optionally, the other end of the first support structure is provided with a protrusion, and one end of the second support structure is provided with a groove matched with the protrusion; when the protrusion and the groove are matched, the pleated medium filter is in the stretched state.

[0012] Optionally, the support structure further comprises a rotating shaft, the other end of the first support structure is provided with a first through hole, and one end of the second support structure is provided with a second through hole; the rotating shaft passes through the first through hole and the second through hole to connect the first support structure and the second support structure, so that the first support structure and the second support structure rotate around the axis of the rotating shaft.

[0013] Optionally, the edge position of the other end of the first support structure is provided with a buckle, and the edge position of one end of the second support structure is provided with a clamping groove matched with the buckle; when the buckle is buckled to the clamping groove, the first support structure and the second support structure are locked.

[0014] Optionally, the first end and the second end are made of plastic.

[0015] Optionally, the first end and the second end are not in contact with the one side of the pleated medium, and are provided with anti-friction pads made of flexible material.

[0016] Optionally, one end of the first support structure is connected to the first end through a fastener, and the other end of the second support structure is connected to the second end through a fastener.

[0017] The above technical scheme has at least the following advantages or beneficial effects:

[0018] The foldable air filter can realize support and forming of the air filter before the air filter is installed into the air purification equipment, reduce installation difficulty, and save installation time.

[0019] The anti-friction pad can protect the first end and the second end of the foldable air filter, and reduce friction when the air filter is installed into the air purification equipment.

[0020] The first support structure and the second support structure are provided with a snap design to provide snap fixing when the first support structure and the second support structure are stretched and the pleated medium is completely unfolded, thereby providing stable support for the air filter.

[0021] The above summary is intended to illustrate only and is not intended to limit the application in any way. Further aspects, embodiments and features of the application will be apparent from a review of the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0022] In the drawings, like reference numerals are used to indicate like parts throughout the various figures. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the application. It should be understood that the drawings are merely depictions of some embodiments of the application and that each of the drawings is a simplification.

[0023] Figure 1 A perspective view of the foldable air filter of the present application in an unfolded state;

[0024] Figure 2 A perspective view of the foldable air filter of the present application in a folded state;

[0025] Figure 3 A perspective view of the foldable structure of the present application in cooperation with the first end and the second end of the pleated medium filter in an unfolded state and a folded state;

[0026] Figure 4 A perspective view of the foldable structure of the present application after disassembly;

[0027] Figure 5 A partial enlarged view of A in Figure 4

[0028] A partial enlarged view of B in Figure 6 Figure 4 A partial enlarged view of C in

[0029] Figure 7 Figure 4

[0030] REFERENCE NUMERALS

[0031] ​​​1. A pleated media filter; 11. A first end; 12. A second end; 13. A pleated media; 14. A connecting band; 15. An anti-friction pad; 2. A foldable structure; 21. A first connecting end; 22. A second connecting end; 23. A first supporting structure; 231. A protrusion; 232. A buckle; 233. A first through hole; 24. A second supporting structure; 241. A groove; 242. A clamping groove; 243. A second through hole; 25. A rotating shaft; 26. A rivet. DETAILED DESCRIPTION

[0032] Hereinafter, only certain exemplary embodiments are described simply. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0033] Reference Figures 1-7 , shows a foldable air filter of a preferred embodiment of the present application, comprising:

[0034] A pleated media filter 1 has a first end 11, a second end 12 and a foldable pleated media 13 between the first end 11 and the second end 12, the pleated media 13 is used to filter particulate matter in the air;

[0035] A foldable structure 2 has a first connecting end 21 connecting the first end 11 and a second connecting end 22 connecting the second end 12, the foldable structure 2 makes the pleated media filter 1 have a folded state and an extended state, when in the folded state, the pleated media 13 is folded into a first size, when in the extended state, the pleated media 13 is extended into a second size, the first size is smaller than the second size.

[0036] Because the foldable structure is used to support the pleated media filter, compared with the existing top and bottom slide rail mounting method, the support and shaping of the air filter can be realized before the air filter is loaded into the air purification device, reducing the installation difficulty.

[0037] As an optional embodiment, a plurality of connecting bands 14 are provided on the pleated media 13 in the extension direction thereof, the connecting bands 14 are made of flexible material, facilitating folding, and can enhance the strength of the pleated media 13, the plurality of connecting bands 14 are preferably distributed on both sides of the pleated media 13 to better cooperate with the folding and extension of the pleated media 13.

[0038] As an optional embodiment, the foldable structure 2 comprises at least two groups of support structures, wherein each group of support structures comprises a first support structure 23 and a second support structure 24, one end of the first support structure 23 is configured as the first connecting end 21, the other end of the first support structure 23 is connected to one end of the second support structure 24, and the other end of the second support structure 24 is configured as the second connecting end 22; preferably, the first support structure 23 and the second support structure 24 can be support bars or support columns, etc., which can be adjusted by those skilled in the art according to the situation.

[0039] When the included angle between the first support structure 23 and the second support structure 24 is substantially 180°, the pleated medium filter 1 is in the stretched state; when the included angle between the first support structure 23 and the second support structure 24 is less than 160°, the pleated medium filter 1 is in the folded state. The use of multiple groups of support structures can make the first end 11 and the second end 12 of the pleated medium filter 1 stable when the pleated medium filter 1 is in the stretched state, and directly push the stable stretched air filter into the air purification equipment, making the installation more convenient.

[0040] As an optional embodiment, at least two groups of support structures are distributed on both sides of the pleated medium filter 1.

[0041] As a preferred embodiment, the foldable structure comprises four groups of support structures, two groups of the support structures are located at different positions on one side of the pleated medium filter 1, and two groups of the support structures are located at different positions on the other side of the pleated medium filter 1. The support structures are preferably located at the end positions of the pleated medium filter 1, and the support is more stable at the four end positions on the front and back surfaces of the pleated medium filter 1.

[0042] As a preferred embodiment, the other end of the first support structure 23 has a protrusion 231, and one end of the second support structure 24 has a groove 241 matched with the protrusion 231; when the protrusion 231 and the groove 241 are matched, the pleated medium filter 1 is in the stretched state. When the user props up the pleated medium filter 1 by the first support structure 23 and the second support structure 24, the matching of the protrusion 231 and the groove 241 enables the user to feel whether it is stretched to the right position, and the first support structure 23 and the second support structure 24 are not easy to produce relative displacement in the stretched state, so that the support is not stable enough.

[0043] As a preferred embodiment, the support structure further comprises a rotating shaft 25, the other end of the first support structure 23 has a first through hole 233; one end of the second support structure 24 has a second through hole 243, the rotating shaft 25 passes through the first through hole 233 and the second through hole 243 to connect the first support structure 23 and the second support structure 24, so that the first support structure 23 and the second support structure 24 rotate around the axis of the rotating shaft 25. The rotating shaft 25 can limit the first support structure 23 and the second support structure 24 in the direction perpendicular to the plane where the pleated medium filter 1 is located, so that the first support structure 23 and the second support structure 24 can also realize relative rotation in close contact.

[0044] As a preferred embodiment, the edge position of the other end of the first support structure 23 has a buckle 232, and the edge position of one end of the second support structure 24 has a clamping groove 242 matched with the buckle 232; when the buckle 232 is buckled into the clamping groove 242, the first support structure 23 and the second support structure 24 are locked. The buckle 232 and the clamping groove 242 are matched, which can further limit the first support structure 23 and the second support structure 24, so that they will not be forced to return to the folded state even when they are subjected to natural pressure at the first end or the second end, and the user needs to exert force to make the relative rotating shaft 25 of the first support structure 23 and the second support structure 24 rotate to restore the folded state.

[0045] As a preferred embodiment, the first end 11 and the second end 12 are made of plastic material which is not easy to deform. For example, ABS or PVC with certain hardness and not easy to deform, and those skilled in the art can predict that the first end 11 and the second end 12 are not limited to plastic material to achieve, and metal material can also be used to achieve.

[0046] As a preferred embodiment, the first end 11 and the second end 12 are not in contact with one side of the pleated medium 13, and are provided with anti-friction pads 15. The anti-friction pads 15 are made of flexible material. The flexible material can be fabric material, sponge material or plastic material, etc. The anti-friction pads 15 are preferably provided with two; the anti-friction pads 15 are preferably made of net-shaped noise-reducing and shock-absorbing sponge. The anti-friction pads 15 can uniformly protect the top and bottom of the pleated medium filter 1, and prevent the top and bottom of the pleated medium filter 1 from contacting the metal track, thereby greatly reducing friction and pressure.

[0047] As a preferred embodiment, one end of the first support structure 23 is connected to the first end 11 by a fastener 26, and the other end of the second support structure 24 is connected to the second end 12 by a fastener 26. The fasteners 26 can be used to firmly fix the other ends of the first support structure 23 and the second support structure 24 to the first end 11 and the second end 12, and the two ends of the pleated medium 13 are fixedly connected to the first end 11 and the second end 22 by the connecting belt 14, so that the stretching and folding of the pleated medium 13 can be realized by directly adjusting the included angle between the first support structure 23 and the second support structure 24. Alternatively, the fasteners 26 can be rivets, screws, bolts, etc.

[0048] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0049] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0050] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A collapsible air filter, characterized by, The application relates to a pleated medium filter, comprising: a pleated medium filter having a first end, a second end and a foldable pleated medium between the first end and the second end, the pleated medium being used for filtering particulate matters in air; a foldable structure having a first connecting end connected to the first end and a second connecting end connected to the second end, the foldable structure enabling the pleated medium filter to have a folded state and an unfolded state, when in the folded state, the pleated medium is folded into a first size, when in the unfolded state, the pleated medium is unfolded into a second size, the first size being smaller than the second size; the foldable structure comprises at least two groups of support structures, each group of support structures comprising a first support structure and a second support structure, one end of the first support structure being configured as the first connecting end, the other end of the first support structure being connected to one end of the second support structure, the other end of the second support structure being configured as the second connecting end; the other end of the first support structure has a protrusion, one end of the second support structure has a groove matched with the protrusion; when the protrusion and the groove are matched, the pleated medium filter is in the unfolded state; when the included angle between the first support structure and the second support structure is approximately 180 DEG, the pleated medium filter is in the unfolded state; when the included angle between the first support structure and the second support structure is less than 160 DEG, the pleated medium filter is in the folded state.

2. The collapsible air filter of claim 1, wherein, The at least two groups of support structures are distributed on both sides of the pleated medium filter.

3. The collapsible air filter of claim 2, wherein, The foldable structure comprises four groups of support structures, two groups of the support structures being located at different positions on one side of the pleated medium filter, and the other two groups of the support structures being located at different positions on the other side of the pleated medium filter.

4. The collapsible air filter of claim 1, wherein, The support structure further comprises a rotating shaft, the other end of the first support structure has a first through hole, one end of the second support structure has a second through hole, and the rotating shaft passes through the first through hole and the second through hole to connect the first support structure and the second support structure, so that the first support structure and the second support structure rotate around the axis of the rotating shaft.

5. The collapsible air filter of claim 1, wherein, An edge position of the other end of the first support structure has a buckle, and an edge position of one end of the second support structure has a clamping groove matched with the buckle; when the buckle is buckled to the clamping groove, the first support structure and the second support structure are locked.

6. The collapsible air filter of claim 1, wherein, The first end and the second end are made of plastic material which is not easy to deform.

7. The collapsible air filter of claim 1, wherein, The first end and the second end are provided with anti-friction pads on the sides not contacting the pleated medium, and the anti-friction pads are made of flexible material.

8. The collapsible air filter of claim 1, wherein, One end of the first support structure is connected to the first end through a fastener, and the other end of the second support structure is connected to the second end through a fastener.

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