High-folded-paper rectangular air filter element

By combining the sealing baffle, protective side plate, sealing ring, and filter element, the problem of difficult assembly caused by the complex structure of existing air filter elements is solved, and a simple air filter element with rapid assembly and high-efficiency filtration effect is achieved.

CN224167170UActive Publication Date: 2026-04-28HEBEI LUZHIYUAN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI LUZHIYUAN AUTO PARTS CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing air filter elements have complex structures, making assembly difficult and unable to meet the needs of rapid assembly.

Method used

An air filter element is formed by combining a pair of sealing baffles, a pair of protective side plates, and a sealing ring with the filter element and bonding them together with adhesive. The filter element is corrugated to increase the filtration area. The sealing baffles and side plates are made of polyurethane material and are equipped with sealing grooves and protrusions to prevent adhesive overflow.

Benefits of technology

It achieves a simple structure, fewer parts, and convenient assembly, thereby improving filtration efficiency and assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a highly-folded paper rectangular air filter element which comprises a filter element, a pair of sealing baffles, a pair of protective side plates and a sealing ring, the pair of sealing baffles are respectively fixed on the front side and the rear side of the filter element, the pair of protection side plates are respectively fixed on the left side and the right side of the filter element, the pair of sealing baffles and the pair of protection side plates enclose a protection sleeve on the outer side of the filter element, and the sealing ring is fixed on the outer side of the protection sleeve. And the use requirements can be better met.
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Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically a high-fold rectangular air filter. Background Technology

[0002] An air filter element is a type of filter, also known as an air filter cartridge, air purifier, or filter. It is primarily used for air filtration in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms.

[0003] For example, the utility model patent with authorization announcement number CN210356352U discloses a polyurethane air filter element. This air filter element can effectively prevent dust from clogging between the polyurethane air filter elements, improve the air filtration effect of the polyurethane air filter element, and is used with buckle posts, limit plates and mounting plates for auxiliary fixation, effectively fixing the polyurethane air filter element to the installation equipment.

[0004] However, the air filter has a relatively complex structure, making it inconvenient for workers to assemble quickly, increasing the difficulty of operation, and failing to meet the usage requirements well. Utility Model Content

[0005] The purpose of this invention is to provide a high-folding rectangular air filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-fold rectangular air filter element includes: a filter element, a pair of sealing baffles, a pair of protective side plates, and a sealing ring; the pair of sealing baffles are respectively fixed on the front and rear sides of the filter element, the pair of protective side plates are respectively fixed on the left and right sides of the filter element, the pair of sealing baffles and the pair of protective side plates form a protective sleeve on the outside of the filter element, and the sealing ring is fixed on the outside of the protective sleeve.

[0008] As a preferred embodiment, the sealing ring is rectangular, and a sealing groove is provided at the upper end of the sealing ring.

[0009] As a preferred embodiment, the filter element is wavy.

[0010] As a preferred embodiment, the filter element is formed by continuously bending filter paper.

[0011] As a preferred embodiment, the outer side of the sealing baffle is provided with a sealing groove, and the inner side of the sealing baffle is provided with a sealing protrusion at a corresponding position.

[0012] As a preferred embodiment, the inner side of the sealing baffle is further provided with a sealing edge, the thickness of which is greater than the thickness of the sealing protrusion.

[0013] As a preferred embodiment, the sealing baffle, protective side plate, and sealing ring are all made of polyurethane material.

[0014] As a preferred embodiment, the sealing baffle and the protective side plate are bonded to the filter element with adhesive.

[0015] As a preferred embodiment, the sealing ring is bonded to the outside of the protective sleeve with adhesive.

[0016] As a preferred embodiment, the filter element is further provided with positioning rubber strips at both the upper and lower ends.

[0017] Compared with existing technologies, the advantages of this utility model are: an air filter element can be assembled by setting a pair of sealing baffles, a pair of protective side plates, a sealing ring, and a filter element. The structure is simple, with few parts, making assembly convenient and better meeting usage requirements. This utility model has a simple structure, is easy for workers to assemble, and better meets usage needs. Attached Figure Description

[0018] Figure 1 A first-person perspective three-dimensional structural diagram of a high-folding rectangular air filter element;

[0019] Figure 2 A schematic diagram of the overall second-view three-dimensional structure of a high-folding rectangular air filter element;

[0020] Figure 3 This is a schematic diagram of the exploded structure of a high-folding rectangular air filter element;

[0021] Figure 4 A three-dimensional structural diagram of the filter element position of a high-folding rectangular air filter element;

[0022] Figure 5 This is a three-dimensional structural diagram of the sealing ring position of a high-fold rectangular air filter element.

[0023] In the diagram: 1. Sealing ring; 11. Sealing groove; 2. Sealing baffle; 21. Sealing groove; 22. Sealing protrusion; 23. Sealing edge; 3. Filter element; 31. Protective side plate; 32. Positioning rubber strip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Example: Please refer to Figures 1-5 A high-fold rectangular air filter element includes: a filter element 3, a pair of sealing baffles 2, a pair of protective side plates 31, and a sealing ring 1; the pair of sealing baffles 2 are respectively fixed on the front and rear sides of the filter element 3, the pair of protective side plates 31 are respectively fixed on the left and right sides of the filter element 3, the pair of sealing baffles 2 and the pair of protective side plates 31 form a protective sleeve on the outside of the filter element 3, and the sealing ring 1 is fixed on the outside of the protective sleeve. In this embodiment, the sealing ring 1 is rectangular, and a sealing groove 11 is provided at the upper end of the sealing ring 1.

[0026] The working principle of this utility model is as follows: an air filter element can be assembled by setting a pair of sealing baffles 2, a pair of protective side plates 31, a sealing ring 1 and a filter element 3. The structure is simple, with few parts, and is easy to assemble, which can better meet the needs of use.

[0027] As a further embodiment, the filter element 3 is corrugated and is formed by continuously bending filter paper. By setting the filter element 3 to be corrugated, the filtration area can be effectively increased and the filtration effect can be improved.

[0028] As a further embodiment, a sealing groove 21 is provided on the outer side of the sealing baffle 2, and a sealing protrusion 22 is provided at a corresponding position on the inner side of the sealing baffle 2. A sealing edge 23 is also provided on the inner side of the sealing baffle 2, and the thickness of the sealing edge 23 is greater than the thickness of the sealing protrusion 22. By providing the sealing groove 21, it is convenient for the sealing ring 1 to be fitted onto the workpiece. By providing the sealing protrusion 22, an anti-overflow ring can be formed on the inner side of the sealing baffle 2, which can effectively prevent glue overflow during fixing.

[0029] As a further embodiment, the sealing baffle 2, the protective side plate 31, and the sealing ring 1 are all made of polyurethane material. The sealing baffle 2 and the protective side plate 31 are glued to the filter element 3, and the sealing ring 1 is glued to the outside of the protective sleeve.

[0030] By using adhesive for bonding, the assembly of the device is convenient, with fewer parts and simple operation, which can better meet the needs of users.

[0031] As a further improvement, positioning strips 32 are provided at both the upper and lower ends of the filter element 3. By providing positioning strips 32, the bending position of the filter element 3 can be effectively prevented from shifting, ensuring the air intake gap and thus guaranteeing the filtration and purification effect.

[0032] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A rectangular air filter element with high folding paper, characterized in that, include: The filter element (3), a pair of sealing baffles (2), a pair of protective side plates (31), and a sealing ring (1); A pair of sealing baffles (2) are fixed on the front and rear sides of the filter element (3), and a pair of protective side plates (31) are fixed on the left and right sides of the filter element (3). The pair of sealing baffles (2) and the pair of protective side plates (31) form a protective sleeve on the outside of the filter element (3), and the sealing ring (1) is fixed on the outside of the protective sleeve.

2. The high-fold rectangular air filter element according to claim 1, characterized in that: The sealing ring (1) is rectangular, and a sealing groove (11) is provided at the upper end of the sealing ring (1).

3. The high-fold rectangular air filter element according to claim 2, characterized in that: The filter element (3) is wavy.

4. A high-fold rectangular air filter element according to claim 3, characterized in that: The filter element (3) is formed by continuously bending filter paper.

5. A high-fold rectangular air filter element according to claim 4, characterized in that: A sealing groove (21) is provided on the outer side of the sealing baffle (2), and a sealing protrusion (22) is provided on the inner side of the sealing baffle (2) at the corresponding position.

6. A high-fold rectangular air filter element according to claim 5, characterized in that: The inner side of the sealing baffle (2) is also provided with a sealing edge (23), the thickness of which is greater than the thickness of the sealing protrusion (22).

7. A high-fold rectangular air filter element according to claim 6, characterized in that: The sealing baffle (2), the protective side plate (31), and the sealing ring (1) are all made of polyurethane material.

8. A high-fold rectangular air filter element according to claim 7, characterized in that: The sealing baffle (2) and the protective side plate (31) are glued to the filter element (3).

9. A high-fold rectangular air filter element according to claim 8, characterized in that: The sealing ring (1) is glued to the outside of the protective sleeve.

10. A high-fold rectangular air filter element according to claim 9, characterized in that: The filter element (3) is also provided with positioning rubber strips (32) at both the upper and lower ends.

Citation Information

Patent Citations

  • Polyurethane air filter element

    CN210356352U