An air filter

Abstract

The utility model provides a kind of air filter, including several superimposed connection filter modules, filter module includes filter frame, the bottom in filter frame is provided with compression spring, the upper end of compression spring is provided with push plate, the top of filter frame is provided with detachable cover plate, the left and right ends of filter frame top are evenly spaced and provided with L type clamping groove, the left and right ends of cover plate are provided with the clamping block matched with L type clamping groove, push plate and cover plate are filled with filter assembly, and the filter frame between adjacent filter modules is detachably connected. The air filter of the utility model is composed of filter module, and is convenient for free assembly according to use scene and filtering requirement.

Description

Technical Field

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

[0002] Air filters have different filtration requirements depending on the application environment, thus involving combinations of different functional filter components. Existing air filters typically have fixed filter components, making replacement difficult as needed; furthermore, the lack of modularization for different functional filter components hinders flexible combinations based on customer requirements. Utility Model Content

[0003] This utility model proposes an air filter composed of filter modules, which can be freely assembled according to the usage scenario and filtration requirements.

[0004] The technical solution of this utility model is implemented as follows: an air filter includes several stacked and connected filter modules. Each filter module includes a filter frame, a compression spring is provided at the bottom of the filter frame, a push plate is provided at the upper end of the compression spring, a detachable cover plate is provided at the top of the filter frame, L-shaped slots are provided at intervals on both the left and right ends of the top of the filter frame, and locking blocks that cooperate with the L-shaped slots are provided on both the left and right ends of the cover plate. Filter components are filled between the push plate and the cover plate, and the filter frames of adjacent filter modules are detachably connected.

[0005] Furthermore, the filter frame includes a square frame with an opening at the top. A first stop is provided on the left side of the square frame along its four sides, and a second stop is provided on the right side along its four sides. Arc-shaped protrusions are stamped on both the upper and lower sides of the first stop, and a locking hole is formed between the arc-shaped protrusions and the first stop. Inverted L-shaped buckles are bent on both the upper and lower sides of the second stop. The inverted L-shaped buckles and arc-shaped protrusions of adjacent filter modules are inserted and connected.

[0006] Furthermore, the filter assembly includes an air inlet plate and an air outlet plate, with a filter element filling the space between the air inlet plate and the air outlet plate.

[0007] Furthermore, the filter element includes a filter bag filled with granular activated carbon.

[0008] Furthermore, the filter element is pleated filter paper.

[0009] Furthermore, a first sealing gasket is provided on the inner side of both the first and second retaining edges.

[0010] Furthermore, a third sealing gasket is provided on the side of the cover plate and the bottom plate near the filter assembly.

[0011] Furthermore, a second sealing gasket is provided on the outer side of the first and / or second retaining edges.

[0012] The beneficial effects of this utility model are: The air filter of this utility model has a uniform filter frame structure, which is convenient for mass production and industrialization. By simply replacing the filter components, different functional filter elements can be modularized, which allows for free combination of modules with different filtration functions according to user needs.

[0013] The filter module of this utility model has an openable cover plate, which facilitates the replacement of filter components as needed. The compression spring also makes it easy to push the top of the filter component out of the filter frame when the cover plate is opened, which is convenient for removing the filter component. Moreover, the compression spring also ensures that after the cover plate's locking block is engaged with the L-shaped locking groove, the top of the locking block abuts tightly against the inner wall of the L-shaped locking groove, increasing friction and making the cover plate less likely to fall off. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is the front view of the present invention; Figure 2 This is the left view of the filtering module; Figure 3 This is the right view of the filtering module; Figure 4 for Figure 2 Top view; Figure 5 This is a schematic diagram of the assembly process of the L-shaped card slot and card block; Figure 6 for Figure 2 Sectional view of AA; Figure 7 for Figure 6 A magnified view of part B in the image; Figure 8 for Figure 6 A magnified view of part C; Figure 9 This is a schematic diagram of the assembly structure of the arc-shaped protrusion and the inverted L-shaped buckle.

[0016] Filter frame 1, compression spring 2, push plate 3, cover plate 4, L-shaped slot 5, locking block 6, filter assembly 7, square frame 8, first guard edge 9, second guard edge 10, arc-shaped protrusion 11, locking hole 12, inverted L-shaped buckle 13, second sealing gasket 14, first sealing gasket 15, third sealing gasket 16, air inlet plate 17, air outlet plate 19, filter element 20. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In this utility model, the terms "left," "right," "up," and "down" are relative to... Figure 1 The positional relationship is shown.

[0019] Example 1 like Figure 1-5 As shown, an air filter includes several stacked and connected filter modules, the number of which can be determined according to filtration requirements. Each filter module includes a filter frame 1, with a vertical compression spring 2 fixed to the bottom of the filter frame 1, a horizontal push plate 3 fixed to the upper end of the compression spring 2, and a removable cover plate 4 on the top of the filter frame 1. L-shaped slots 5 are spaced apart at both ends of the top of the filter frame 1, and locking blocks 6 that mate with the L-shaped slots 5 are provided at both ends of the cover plate 4. The locking blocks 6 and the cover plate 4 are integrally formed, and a filter assembly 7 is filled between the push plate 3 and the cover plate 4.

[0020] like Figure 2-4 , Figure 6 , Figure 8 and Figure 9 As shown, the filter frames 1 of adjacent filter modules are detachably connected. The filter frame 1 includes a square frame 8 with an opening at the top. A first retaining edge 9 is welded and fixed to the left end of the square frame 8 along its four sides, and a second retaining edge 10 is welded and fixed to the right end along its four sides. Arc-shaped protrusions 11 are fixed to both the upper and lower sides of the first retaining edge 9, forming a locking hole 12 between the arc-shaped protrusions 11 and the first retaining edge 9. The arc-shaped protrusions 11 are formed by stamping. Inverted L-shaped buckles 13 are fixed to both the upper and lower sides of the second retaining edge 10. The inverted L-shaped buckles 13 are formed by bending the second retaining edge 10 at the position corresponding to the arc-shaped protrusions 11. The inverted L-shaped buckles 13 and the arc-shaped protrusions 11 of adjacent filter modules are inserted and connected.

[0021] like Figure 1 and Figure 6-8 As shown, a second sealing gasket 14 is fixed to the outer side of both the first baffle 9 and the second baffle 10. Alternatively, a second sealing gasket 14 can be fixed to the outer side of either the first baffle or the second baffle to ensure the sealing at the junction of adjacent filter modules. Figure 2 and Figure 3The second sealing gasket 14 is not shown. A first sealing gasket 15 is fixed to the inner side of both the first flange 9 and the second flange 10. The first sealing gasket 15 is used to ensure the sealing of the left and right sides of the filter assembly. A third sealing gasket 16 is fixed to the side of the cover plate 4 and the bottom plate near the filter assembly 7. The third sealing gasket 16 is used to seal the upper and lower ends of the filter assembly 7.

[0022] The air filter can combine filter modules with different filtration functions as needed. The filter frame 1 has the same structure; only the filter assembly 7 needs to be replaced. Furthermore, the cover plate 4 can be opened, allowing for subsequent replacement of the filter assembly 7 as needed. After the cover plate 4 is opened, the compression spring 2 extends, pushing the top of the filter assembly 7 out of the filter frame 1 via the push plate 3, facilitating removal and replacement of the filter assembly 7. After replacement, the cover plate 4 is placed on top of the filter assembly 7, then pressed down to compress the compression spring 2, and the cover plate 4 slides, causing the locking block 6 of the cover plate 4 to engage in the L-shaped slot 5. Figure 5 As shown.

[0023] Example 2 This embodiment is the same as Embodiment 1, except that, as Figure 2-3 and Figure 6 As shown, the filter assembly 7 includes an inlet plate 17 and an outlet plate 19. A filter element 20, which is pleated filter paper, is filled between the inlet plate 17 and the outlet plate 19. After stacking the inlet plate 17, the pleated filter paper, and the outlet plate 19, it is inserted into the filter frame 1. The first sealing gasket 15 seals against either the inlet plate 17 or the outlet plate 19. Finally, the top cover 4 is installed. If the filter assembly 7 becomes clogged and needs to be replaced, the inlet plate and the outlet plate 19 can be cleaned directly, requiring only the replacement of the pleated filter paper.

[0024] Example 3 This embodiment is the same as embodiment 1 or 2, except that, as Figure 2-3 and Figure 6 As shown, the filter assembly 7 includes an air inlet plate 17 and an air outlet plate 19, with a filter element 20 filling the space between them. The filter element 20 includes a filter bag filled with granular activated carbon. The filter element 20 can also be made of other materials. The air inlet plate 17 and the air outlet plate 19 serve a supporting function.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air filter, characterized in that: It includes several stacked and connected filter modules. Each filter module includes a filter frame. A compression spring is installed at the bottom of the filter frame. A push plate is installed at the top of the compression spring. A detachable cover plate is installed at the top of the filter frame. L-shaped slots are spaced apart at both ends of the top of the filter frame. A locking block that mates with the L-shaped slot is installed at both ends of the cover plate. Filter components are filled between the push plate and the cover plate. The filter frames of adjacent filter modules are detachably connected.

2. An air filter according to claim 1, characterized in that: The filter frame includes a square frame with an opening at the top. A first stop is provided on the left side of the square frame along its four sides, and a second stop is provided on the right side along its four sides. Arc-shaped protrusions are stamped on both the top and bottom sides of the first stop, and the arc-shaped protrusions form a locking hole with the first stop. Inverted L-shaped buckles are bent on both the top and bottom sides of the second stop. The inverted L-shaped buckles and arc-shaped protrusions of adjacent filter modules are inserted and connected.

3. An air filter according to claim 1 or 2, characterized in that: The filter assembly includes an air inlet plate and an air outlet plate, with a filter element filling the space between the air inlet plate and the air outlet plate.

4. An air filter according to claim 3, characterized in that: The filter element includes a filter bag, which is filled with granular activated carbon.

5. An air filter according to claim 3, characterized in that: The filter element is made of pleated filter paper.

6. An air filter according to claim 2, characterized in that: A first sealing gasket is provided on the inner side of both the first and second retaining edges.

7. An air filter according to claim 1 or 2, characterized in that: Both the cover plate and the bottom plate have a third sealing gasket on the side closest to the filter assembly.

8. An air filter according to claim 2, characterized in that: A second sealing gasket is provided on the outer side of the first and / or second flanges.

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