Round filter cartridge with profiled end cap and filtration device
By designing a combination of a circular filter cartridge and an irregularly shaped end cap, the problem of incompatibility between irregular triangular filter cartridge support components was solved, achieving both sealing performance and cost advantages.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG PARKER HANNIFIN FILTRATION PROD & SYST CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-21
AI Technical Summary
The support components of the irregular triangular filter cartridges in the existing technology are not compatible with standard inner and outer end caps, which leads to inconvenience in use and fails to meet user needs.
Design a circular filter cartridge with irregularly shaped end caps. The filter cartridge body has a circular cross-section, the outer ring of the end caps is circular, and it is equipped with a sealing structure to adapt to irregular triangular support components and achieve a good sealing connection.
The system achieves compatibility between circular filter cartridges and irregular triangular support components, ensuring the sealing effect of the dust removal equipment and reducing manufacturing costs and structural complexity.
Smart Images

Figure CN224524290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter cartridge technology, and in particular to a circular filter cartridge with irregularly shaped end caps and a dust removal device. Background Technology
[0002] A filter cartridge is a cylindrical element used for filtration and is generally installed inside a filter. Filter cartridges are divided into those for filtering gaseous media and those for filtering liquid media. In the prior art, for example, invention patent application number CN201480013334.0 discloses an irregularly triangular filter cartridge. The triangular support component used with this filter cartridge is structurally incompatible with standard filter cartridges that have end caps both inside and out, resulting in inconvenience for users and failing to meet their needs. Utility Model Content
[0003] To address the aforementioned shortcomings, the technical problem to be solved by this utility model is to provide a circular filter cartridge with irregularly shaped end caps and a dust removal device, wherein the circular structure of the circular filter cartridge allows it to be adapted to irregular triangular supports, thereby replacing irregular triangular filter cartridges and meeting user needs.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0005] A circular filter cartridge with irregularly shaped end caps includes a filter cartridge body with a circular cross-section. One end of the filter cartridge body is provided with a first end cap, and the other end of the filter cartridge body is provided with a second end cap. The outer rings of the first end cap and the second end cap are both circular. A sealing structure is provided at the end of the first end cap away from the filter cartridge body, and the outer edge of the sealing structure is located inside the outer edge of the first end cap.
[0006] In a preferred embodiment, the sealing structure includes a sealing ring and a sealing plate structure disposed within the inner ring of the sealing ring.
[0007] In a preferred embodiment, the sealing structure includes a sealing ring.
[0008] In a preferred embodiment, the second end cap is provided with a circular hole.
[0009] In a preferred manner, the diameter of the circular hole is set according to the eccentricity requirement of the internal support rod.
[0010] In a preferred embodiment, the end face of the second end cap that is away from the filter cartridge body is a flat surface.
[0011] In a preferred embodiment, the filter cartridge body includes an inner support structure and filter paper disposed on the outside of the inner support structure.
[0012] In a preferred embodiment, the filter cartridge body further includes an external support structure, which is disposed on the outside of the filter paper.
[0013] Preferably, the filter paper is wood pulp fiber filter media or polyester filter media.
[0014] A dust removal device includes the aforementioned circular filter cartridge with irregularly shaped end caps.
[0015] The beneficial effects of this utility model after adopting the above technical solution are:
[0016] Because this utility model relates to a circular filter cartridge with irregularly shaped end caps and a dust removal device, the circular filter cartridge includes a filter cartridge body with a circular cross-section. One end of the filter cartridge body is provided with a first end cap, and the other end is provided with a second end cap. The outer rings of both the first and second end caps are circular. A sealing structure is provided at the end of the first end cap facing away from the filter cartridge body, with the outer edge of the sealing structure located inside the outer edge of the first end cap. As can be seen from the above, the circular cross-section of the filter cartridge, the outer rings of the first and second end caps allow for the use of irregular triangular support components for support, thus replacing irregular triangular filter cartridges and meeting user needs. In particular, the sealing structure on the first end cap can establish a good sealing connection with the applied dust removal equipment, thereby ensuring the sealing effect of the entire dust removal equipment. Furthermore, the circular filter cartridge of this utility model also has the advantages of simple structure and low manufacturing cost. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the circular filter cartridge with irregularly shaped end caps in Embodiment 1;
[0018] Figure 2 This is a schematic diagram of the circular filter cartridge with irregularly shaped end caps from another angle in Embodiment 1;
[0019] Figure 3 This is a cross-sectional view of the circular filter cartridge with irregularly shaped end caps in Embodiment 1;
[0020] Figure 4 This is a cross-sectional view of the circular filter cartridge with irregularly shaped end caps in Embodiment 1;
[0021] Figure 5 This is a schematic diagram of the structure of the circular filter cartridge with irregularly shaped end caps in Embodiment 2;
[0022] Figure 6 This is a schematic diagram of the circular filter cartridge with irregularly shaped end caps from another angle in Embodiment 2;
[0023] Figure 7 This is a schematic diagram of the structure of the circular filter cartridge with irregularly shaped end caps in Embodiment 3;
[0024] Figure 8 This is a schematic diagram of the circular filter cartridge with irregularly shaped end caps from another angle in Embodiment 2;
[0025] In the diagram: 1-Sealing structure, 10-Sealing ring, 11-Sealing ring, 12-Sealing plate structure, 2-First end cap, 3-External support structure, 4-Filter paper, 5-Internal support structure, 6-Second end cap, 60-Round hole, 100-Filter cartridge body. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] Example 1:
[0030] like Figures 1 to 4 As shown, a circular filter cartridge with irregularly shaped end caps includes a filter cartridge body 100 with a circular cross-section. A first end cap 2 is provided at one end of the filter cartridge body 100, and a second end cap 6 is provided at the other end. The outer rings of both the first end cap 2 and the second end cap 6 are circular. A sealing structure 1 is provided at the end of the first end cap 2 facing away from the filter cartridge body 100, with the outer edge of the sealing structure 1 located inside the outer edge of the first end cap 2. In this embodiment, the outer rings of the first end cap 2 and the second end cap 6 are directly set as circular end caps. This structure facilitates processing and reduces manufacturing costs; however, it is not limited to circular end caps.
[0031] The cross-section of the filter cartridge, the outer ring of the first end cap 2, and the outer ring of the second end cap 6 of this utility model are all circular, which allows it to be supported by irregular triangular support components, thereby replacing the irregular triangular filter cartridge and meeting the user's needs. In particular, the sealing structure 1 on the first end cap 2 can establish a good sealing connection with the dust removal equipment, thereby ensuring the sealing effect of the entire dust removal equipment. Moreover, the circular filter cartridge of this utility model also has the advantages of simple structure and low manufacturing cost.
[0032] like Figure 1 and Figure 4 As shown, the sealing structure 1 described in this embodiment includes a sealing plate structure 12 disposed within the inner ring of the sealing ring 10. This structure facilitates the processing and manufacturing of the sealing structure 1, and also ensures that the sealing plate structure 12 can make good contact with the circular filter cartridge of this utility model when it comes into contact with the triangular exterior, thus guaranteeing the sealing effect and replacing the irregular triangular filter cartridge.
[0033] like Figure 2 and Figure 4 As shown, in this embodiment, the second end cap 6 is provided with a circular hole 60. The diameter of this circular hole 60 can be set according to the actual application. Specifically, when the circular filter cartridge of this utility model uses an internal support component, the diameter of the circular hole 60 can be set to be larger so that the internal support component is located inside the circular filter cartridge and the eccentric position can be adjusted. When the circular filter cartridge of this utility model uses an external support component, the diameter of the circular hole 60 can be set to be smaller to simplify manufacturing and reduce costs.
[0034] like Figure 2 As shown, in this embodiment, the end face of the second end cap 6 facing away from the filter cartridge body 100 is a flat surface. This structural design facilitates the establishment of a connection, thereby achieving a seal after the connection is made.
[0035] like Figures 1 to 4 As shown, in this embodiment, the filter cartridge body 100 includes an inner support structure 5 and filter paper 4 disposed on the outside of the inner support structure 5. The filter paper 4 may be, but is not limited to, a pleated structure. The filter cartridge body 100 also includes an outer support structure 3 disposed on the outside of the filter paper 4. The filter paper 4 is either wood pulp fiber filter media or polyester filter media, which has good filtration effect. The outer support structure 3 and the inner support structure 5 may be supported by galvanized steel or stainless steel. In a preferred embodiment, both the outer support structure 3 and the inner support structure 5 are mesh structures, which reduces manufacturing costs.
[0036] Specifically, the first end cap 2 and the second end cap 6 are both attached to the outer support structure 3 and the inner support structure 5. Of course, they are not limited to being attached; the sealing structure 1 can be attached to the first end cap 2.
[0037] Example 2:
[0038] like Figure 5 and Figure 6 As shown, the circular filter cartridge with irregularly shaped end caps in this embodiment is basically the same as that in Embodiment 1, except that the circular hole 60 of the second end cap 6 is larger.
[0039] In this embodiment, the circular filter cartridge can use an internal support component, and an eccentric internal support component can be used, which can replace the irregular triangular filter cartridge that uses an internal support component, thus meeting the user's needs.
[0040] Example 3:
[0041] like Figure 7 and Figure 8 As shown, the circular filter cartridge with irregularly shaped end caps in this embodiment is basically the same as that in Embodiment 1, except that the sealing structure is a sealing ring 11, which is located on the end face of the first end cap 21. Meanwhile, the circular hole 60 on the second end cap 6 uses a larger diameter circular hole 60.
[0042] In this embodiment, the circular filter cartridge can use an eccentric internal support component. At the same time, during installation, the first end cap 2 sides can achieve a good seal by pressing the sealing ring 11 with an interference fit.
[0043] In summary, the circular filter cartridge of this utility model can use irregular internal support components or external support components, and can also utilize a plate-like structure to adapt to a triangle for good sealing. It can be adapted to other structures to achieve good sealing, thereby replacing the irregular triangular filter cartridge, meeting the user's needs, and has the advantages of simple structure and low manufacturing cost.
[0044] Example 4:
[0045] A filtration device includes a circular filter cartridge with irregularly shaped end caps as described in Embodiments 1, 2, and 3. Because the dust removal device of this invention allows the use of a filter cartridge that can replace an irregularly shaped triangular filter cartridge, it provides users with a variety of options to meet their needs.
[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications made within the spirit and principles of the present utility model, improvements to a circular filter cartridge with an irregularly shaped end cap, or improvements to a dust removal device, etc., should be included within the protection scope of the present utility model.
Claims
1. A circular filter cartridge with irregularly shaped end caps, characterized in that, The filter cartridge body includes a filter cartridge body with a circular cross-section. One end of the filter cartridge body is provided with a first end cap, and the other end of the filter cartridge body is provided with a second end cap. The outer rings of the first end cap and the second end cap are both circular. The end of the first end cap opposite to the filter cartridge body is provided with a sealing structure, and the outer edge of the sealing structure is located inside the outer edge of the first end cap.
2. The circular filter cartridge with irregularly shaped end caps according to claim 1, characterized in that, The sealing structure includes a sealing ring and a sealing plate structure disposed within the inner ring of the sealing ring.
3. The circular filter cartridge with irregularly shaped end caps according to claim 1, characterized in that, The sealing structure includes a sealing ring.
4. The circular filter cartridge with irregularly shaped end caps according to claim 1, characterized in that, The second end cap has a round hole.
5. The circular filter cartridge with irregularly shaped end caps according to claim 4, characterized in that, The diameter of the circular hole is set according to the eccentricity requirement of the internal support rod.
6. The circular filter cartridge with irregularly shaped end caps according to claim 4, characterized in that, The end face of the second end cap that is away from the filter cartridge body is a flat surface.
7. The circular filter cartridge with irregularly shaped end caps according to claim 1, characterized in that, The filter cartridge body includes an inner support structure and filter paper disposed on the outside of the inner support structure.
8. The circular filter cartridge with irregularly shaped end caps according to claim 7, characterized in that, The filter cartridge body also includes an external support structure, which is located on the outside of the filter paper.
9. The circular filter cartridge with irregularly shaped end caps according to claim 7, characterized in that, The filter paper is wood pulp fiber filter media or polyester filter media.
10. A filtration device, characterized in that, Includes the circular filter cartridge with irregularly shaped end caps as described in any one of claims 1 to 9.