Air purification filter screen

Abstract

This utility model discloses an air purification filter, relating to the field of filter technology. It includes an outer frame assembly that wraps and fixes the filter body. Multiple filter bodies of different types are assembled and fixed together by the outer frame assembly. The outer frame assembly includes a concave frame, an outer L-shaped docking frame, and an inner L-shaped docking frame. The outer and inner L-shaped docking frames are symmetrically formed on both sides of the concave frame, and the filter body is embedded inside the concave frame. The inner L-shaped docking frame of one outer frame assembly is inserted into the inner side of the ratchet-shaped horizontal frame of another outer frame assembly to achieve docking operation between the two outer frame assemblies. This utility model enables the assembly of different types of filter bodies by setting the outer frame assembly, and the ratchet and ratchet groove engagement achieves self-locking during assembly. The overall operation is simple and convenient, effectively improving the efficiency and flexibility of filter assembly processing.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically an air purification filter. Background Technology

[0002] Air purifier filters are the core component of air purifiers, responsible for intercepting, adsorbing, or decomposing pollutants in the air. Different types of filters target different pollutants and use different methods of treatment. For example: pre-filters (or pre-filters) are made of nylon / metal mesh and are used to intercept hair, dust, and large particles; HEPA filters are made of folded glass fiber and are used to intercept PM2.5, pollen, bacteria, etc.; activated carbon filters are made of coconut shell / coal-based activated carbon and are used to adsorb formaldehyde, TVOCs, odors, etc.

[0003] In practical use, air purifier filters are generally used in combination with multiple filters, such as a pre-filter, a HEPA filter, and an activated carbon filter. In addition, depending on the environment, additional layers (such as photocatalytic filters or antibacterial filters) can be added to the back of the activated carbon filter. Therefore, in order to achieve convenient combination of multiple filters, an air purifier filter is provided. Utility Model Content

[0004] The purpose of this invention is to provide an air purification filter in order to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an air purification filter, comprising an outer frame assembly for wrapping and fixing the filter body, wherein multiple filter bodies of different types are assembled and fixed together by the outer frame assembly;

[0006] The outer frame assembly includes a concave frame, an outer L-shaped mating frame, and an inner L-shaped mating frame;

[0007] The outer L-shaped docking frame and the inner L-shaped docking frame are symmetrically formed on both sides of the concave frame, and the filter screen body is embedded inside the concave frame.

[0008] The inner L-shaped docking frame of one outer frame component is inserted into the inner side of the ratchet horizontal frame of another outer frame component to achieve the docking operation of the two outer frame components.

[0009] As a further improvement of this utility model: the outer frame assembly also includes a ratchet groove, a ratchet, and a notch groove;

[0010] The ratchet groove is formed on the inner side of the horizontal frame of the outer L-shaped docking frame, the ratchet is formed on the outer side of the horizontal frame of the inner L-shaped docking frame, the notch groove penetrates the upper and lower ends and the front and rear ends of the horizontal frame of the inner L-shaped docking frame, and multiple notches grooves are evenly arranged along the horizontal frame trajectory of the inner L-shaped docking frame.

[0011] When the inner L-shaped docking frame is inserted into the inner side of the outer L-shaped docking frame, self-locking is achieved by the ratchet teeth and ratchet grooves engaging with each other.

[0012] As a further embodiment of this utility model: the outer wall dimension of the horizontal frame of the outer L-shaped docking frame matches the outer wall dimension of the concave frame, and the inner wall dimension of the horizontal frame of the outer L-shaped docking frame matches the outer wall dimension of the horizontal frame of the inner L-shaped docking frame.

[0013] As a further embodiment of this utility model: a rectangular groove is formed between the vertical part of the inner L-shaped docking frame and the outer wall of the concave frame, and a rectangular sealing sheet is installed inside the rectangular groove, wherein the outer wall size of the rectangular sealing sheet matches the outer wall size of the concave frame.

[0014] As a further embodiment of this utility model: an inner groove is formed in the middle of the outer side of the concave frame, and a sealing strip is bonded and fixed to the inner side of the inner groove, with the outer wall of the sealing strip protruding from the outer side of the concave frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting the outer frame component, different types of filter screen bodies can be assembled. Furthermore, the ratchet teeth and ratchet grooves can be engaged to achieve self-locking during assembly. The overall operation is simple and convenient, effectively improving the efficiency and flexibility of filter screen assembly and processing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural cross-sectional view of the two sets of outer frame components of this utility model in the docking state;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a cross-sectional view of the outer frame assembly of this utility model.

[0021] In the diagram: 1. Outer frame assembly; 101. Concave frame; 102. Outer L-shaped mating frame; 103. Rattle groove; 104. Inner L-shaped mating frame; 105. Rattle; 106. Notch groove; 107. Inner groove; 2. Filter screen body; 3. Sealing strip; 4. Rectangular sealing plate. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 In this embodiment of the utility model, an air purification filter includes an outer frame assembly 1 that wraps and fixes the filter body 2, and multiple filter bodies 2 of different types are assembled and fixed together by the outer frame assembly 1.

[0024] The outer frame assembly 1 includes a concave frame 101, an outer L-shaped mating frame 102, and an inner L-shaped mating frame 104;

[0025] The outer L-shaped docking frame 102 and the inner L-shaped docking frame 104 are symmetrically formed on both sides of the concave frame 101, and the filter screen body 2 is embedded inside the concave frame 101.

[0026] The inner L-shaped docking frame 104 of one outer frame component 1 is inserted into the inner side of the ratchet 105 horizontal frame of another outer frame component 1 to realize the docking operation of the two outer frame components 1.

[0027] The outer frame assembly 1 also includes a ratchet groove 103, a ratchet 105, and a notch 106;

[0028] The ratchet groove 103 is formed on the inner side of the horizontal frame of the outer L-shaped docking frame 102, the ratchet 105 is formed on the outer side of the horizontal frame of the inner L-shaped docking frame 104, and the notch 106 penetrates the upper and lower ends and the front and rear ends of the horizontal frame of the inner L-shaped docking frame 104, and multiple notches 106 are evenly arranged along the horizontal frame trajectory of the inner L-shaped docking frame 104.

[0029] When the horizontal frame of the inner L-shaped docking frame 104 is inserted into the inner side of the horizontal frame of the outer L-shaped docking frame 102, self-locking is achieved by the ratchet 105 and the ratchet groove 103 engaging with each other.

[0030] The outer wall dimensions of the horizontal frame of the outer L-shaped docking frame 102 match the outer wall dimensions of the concave frame 101, and the inner wall dimensions of the horizontal frame of the outer L-shaped docking frame 102 match the outer wall dimensions of the horizontal frame of the inner L-shaped docking frame 104.

[0031] In this embodiment, it should be noted that: the concave frame 101, the outer L-shaped mating frame 102, and the inner L-shaped mating frame 104 are all rectangular frame structures. The cross-section of the concave frame 101 is concave, and the cross-sections of the outer L-shaped mating frame 102 and the inner L-shaped mating frame 104 are L-shaped (e.g., ...). Figure 4 );

[0032] When assembling different types of filter bodies 2, the operation is as follows:

[0033] When the inner L-shaped mating frame 104 on one outer frame assembly 1 is aligned with the inner side of the outer L-shaped mating frame 102 on another outer frame assembly 1 and inserted, the ratchet 105 on the inner L-shaped mating frame 104 contacts the inner wall of the outer L-shaped mating frame 102, generating pressure. This pressure causes the transverse frame portion of the inner L-shaped mating frame 104 to deform (it should be noted that the notch 106 shapes the transverse frame portion of the L-shaped mating frame 104 into multiple independent sheet-like structures, facilitating deformation under stress). This allows the inner L-shaped mating frame 104 to be inserted smoothly. When the ratchet 105 is aligned with the ratchet groove 103, the horizontal frame of the L-shaped docking frame 104 will be reset by the elasticity of its own material, so that the ratchet 105 and the ratchet groove 103 are engaged, achieving a one-way self-locking effect. In this way, the two sets of outer frame components 1 can be combined and fixed, thus completing the assembly operation of different types of filter bodies 2. (It should be noted that the assembly sequence of different types of filter bodies 2 must be in the following order according to the airflow direction: pre-filter → HEPA → activated carbon → additional layer.)

[0034] Please refer to this carefully. Figures 1-4 A rectangular groove is formed between the vertical part of the inner L-shaped docking frame 104 and the outer wall of the concave frame 101, and a rectangular sealing plate 4 is installed inside the rectangular groove. The outer wall size of the rectangular sealing plate 4 matches the outer wall size of the concave frame 101.

[0035] An inner groove 107 is formed in the middle of the outer side of the concave frame 101. A sealing strip 3 is bonded and fixed to the inner side of the inner groove 107. The outer wall of the sealing strip 3 protrudes from the outer side of the concave frame 101.

[0036] In this embodiment: after the two sets of outer frame components 1 are docked, the edge end face of the outer L-shaped docking frame 102 is tightly fitted with the rectangular sealing sheet 4 to achieve the sealing operation between the two sets of outer frame components 1.

[0037] By positioning and installing the sealing strip 3 through the inner groove 107, the assembled filter screen can be sealed with the inner wall of the equipment during installation and use through the sealing strip 3.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air purification filter, comprising an outer frame assembly (1) for wrapping and fixing the filter body (2), characterized in that, Multiple filter screen bodies (2) of different types are assembled and fixed together by an outer frame assembly (1); The outer frame assembly (1) includes a concave frame (101), an outer L-shaped docking frame (102), and an inner L-shaped docking frame (104). The outer L-shaped docking frame (102) and the inner L-shaped docking frame (104) are symmetrically formed on both sides of the concave frame (101), and the filter screen body (2) is embedded in the inner side of the concave frame (101); The inner L-shaped docking frame (104) of one outer frame component (1) is inserted into the inner side of the ratchet (105) horizontal frame of another outer frame component (1) to realize the docking operation of the two outer frame components (1).

2. An air cleaning screen according to claim 1, wherein, The outer frame assembly (1) also includes a ratchet groove (103), a ratchet (105), and a notch groove (106); The ratchet groove (103) is formed on the inner side of the transverse frame of the outer L-shaped docking frame (102), the ratchet (105) is formed on the outer side of the transverse frame of the inner L-shaped docking frame (104), the notch groove (106) penetrates the upper and lower ends and the front and rear ends of the transverse frame of the inner L-shaped docking frame (104), and multiple notches grooves (106) are evenly arranged along the transverse frame trajectory of the inner L-shaped docking frame (104). When the inner L-shaped docking frame (104) is inserted into the inner side of the outer L-shaped docking frame (102), it achieves self-locking by interlocking the ratchet (105) and the ratchet groove (103).

3. The air purification filter screen of claim 1, wherein, The outer wall dimension of the horizontal frame of the outer L-shaped docking frame (102) matches the outer wall dimension of the concave frame (101), and the inner wall dimension of the horizontal frame of the outer L-shaped docking frame (102) matches the outer wall dimension of the horizontal frame of the inner L-shaped docking frame (104).

4. The air purification filter screen of claim 1, wherein, A rectangular groove is formed between the vertical part of the inner L-shaped docking frame (104) and the outer wall of the concave frame (101), and a rectangular sealing plate (4) is installed inside the rectangular groove. The outer wall size of the rectangular sealing plate (4) matches the outer wall size of the concave frame (101).

5. The air purification filter screen of claim 1, wherein, The concave frame (101) has an inner groove (107) formed in the middle of its outer side. A sealing strip (3) is bonded and fixed to the inner side of the inner groove (107). The outer wall of the sealing strip (3) protrudes from the outer side of the concave frame (101).

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