A stable and durable folded wave filter core
By introducing a high-strength support frame, rigid plastic support strips, and a wear-resistant outer cylinder into the pleated filter element, the problems of structural stability and durability are solved, achieving stable durability and high-efficiency filtration, and reducing replacement frequency and cost.
Patent Information
- Application Number
- CN202521517225.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-21
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-21
AI Technical Summary
Existing pleated filter elements have poor structural stability under liquid or gas pressure impacts, are prone to deformation and damage, lack durability, affect filtration performance, and increase usage costs.
The design incorporates a high-strength metal support frame, rigid plastic support strips, and a wear-resistant polymer protective outer cylinder to enhance the structural stability of the filter element. Furthermore, the use of high-precision fiber filter material improves filtration efficiency and lifespan.
This improves the structural stability and durability of the filter element, extends its service life, reduces the replacement frequency, ensures stable filtration performance, and lowers operating costs.
Smart Images

Figure CN224672202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, and in particular to a stable and durable pleated filter element. Background Technology
[0002] Corrugated filter elements are widely used in various fields such as industrial production, environmental water treatment, food and beverage processing, and pharmaceutical manufacturing. In industrial production, they can be used to filter lubricating oil and hydraulic oil, ensuring the normal operation of mechanical equipment. In environmental water treatment, they can effectively remove suspended solids, colloids, and other impurities from water, improving water quality. In the food and beverage and pharmaceutical industries, corrugated filter elements can be used to filter raw materials, intermediate products, and finished products during the production process, ensuring product quality and safety. Corrugated filter elements are widely used in the filtration field due to their large filtration area. However, existing corrugated filter elements have poor structural stability during actual use. When subjected to large pressure impacts from liquids or gases, the corrugated structure is prone to deformation or even damage, leading to a decrease in filtration performance and a shortened service life. Furthermore, the filter elements lack durability; after long-term use, the filter material is prone to wear and aging, affecting the filtration effect. Frequent replacement of filter elements not only increases operating costs but also reduces production efficiency. Therefore, we propose a stable and durable corrugated filter element. Utility Model Content
[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a stable and durable pleated filter element.
[0004] The technical solution of this utility model is as follows: A stable and durable corrugated filter element includes a filter element body, which includes a support frame, an inner filter cylinder, and a protective outer cylinder. The inner filter cylinder is sleeved on the outside of the support frame. The outer surface of the inner filter cylinder has a corrugated structure. Support strips are provided at the peaks and valleys of the corrugations on the inner filter cylinder. The inner ring of the protective outer cylinder fits snugly against the outer surface of the inner filter cylinder. A connecting end cap is provided at one end of the filter element body, and a sealing end cap is provided at the end of the filter element body away from the connecting end cap. A sealing gasket is provided on one side of the sealing end cap.
[0005] Preferably, the support frame is made of high-strength metal material, and the inner ring of the filter inner cylinder is installed correspondingly to the outer ring of the support frame.
[0006] Preferably, the filter inner cylinder is made of multiple layers of filter material folded and pressed together, and the filter material is made of high-precision, high-permeability fiber material.
[0007] Preferably, the support strip is made of rigid plastic, and the mounting end of the support strip is installed corresponding to the corrugated structure on the inner filter cylinder.
[0008] Preferably, the protective outer cylinder has a mesh structure and is made of a wear-resistant and corrosion-resistant polymer material.
[0009] Preferably, the mounting end of the connecting end cap is installed corresponding to one end of the filter element body, the inner ring of the connecting end cap is provided with an internal thread, and a connecting ring is provided on one side of the connecting end cap.
[0010] Preferably, the mounting end of the sealing end cap is installed corresponding to the other end of the filter element body, the outer ring of the sealing end cap is provided with external threads, the connecting end cap and the sealing end cap are adapted to each other, a placement groove is opened on one side of the sealing end cap, and the mounting end of the sealing gasket is installed corresponding to one side of the inner wall of the placement groove.
[0011] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model boasts high overall structural stability. The support frame and support bars enhance the structural strength of the filter element body from both internal and external perspectives, effectively resisting pressure impacts from liquids or gases, preventing deformation of the inner filter cylinder, and ensuring stable filtration performance during long-term use. Simultaneously, the protective outer cylinder effectively protects the inner filter cylinder, reducing damage from external factors. The high-precision, high-permeability filter material itself has a long service life, significantly improving the overall durability of the filter element body, reducing replacement frequency, and saving on operating costs. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is an exploded view of the structure of this utility model; Figure 4 This is a schematic diagram of the support strip in this utility model.
[0013] Reference numerals in the attached drawings: 1. Filter element body; 11. Support frame; 12. Inner filter cylinder; 13. Protective outer cylinder; 14. Support bar; 2. Connecting end cap; 3. Sealing end cap; 4. Sealing gasket; 5. Connecting ring; 6. Placement groove. Detailed Implementation
[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example
[0015] like Figure 1-4As shown, this utility model proposes a stable and durable corrugated filter element, including a filter element body 1, which is cylindrical in shape. The filter element body 1 includes a support frame 11, an inner filter cylinder 12, and a protective outer cylinder 13. The support frame 11 is made of high-strength metal material and has spirally distributed reinforcing ribs. The reinforcing ribs are integrally formed with the support frame 11. The support frame 11 can effectively enhance the structural strength and stability of the filter element body 1 and prevent the filter element body 1 from deforming due to pressure during use. The inner filter cylinder 12 is made of multiple layers of filter material folded and pressed. The corrugated structure formed by folding and pressing multiple layers of filter material greatly increases the filtration area, which can more efficiently intercept impurities in liquids or gases, improve filtration efficiency and filtration accuracy, and meet the needs of different filtration scenarios. The filter material is made of high-precision, high-permeability fiber material, which has good filtration effect and long service life. Two sets are installed on the outside of the support frame 11. The inner ring of the filter inner cylinder 12 is installed correspondingly to the outer ring of the support frame 11. The inner ring of the filter inner cylinder 12 is fixedly connected to the outer ring of the support frame 11. The outer side of the filter inner cylinder 12 has a corrugated structure. Support strips 14 are provided at the peaks and valleys of the corrugations on the filter inner cylinder 12. The support strips 14 are made of hard plastic. The mounting ends of the support strips 14 are installed correspondingly to the corrugated structure on the filter inner cylinder 12. The mounting ends of the support strips 14 are fixedly connected to the filter inner cylinder 12 by hot melt adhesive. The setting of the support strips 14 can further enhance the structural stability of the filter inner cylinder 12 and prevent the corrugated structure from collapsing or deforming under pressure. The inner ring of the protective outer cylinder 13 is in close contact with the outer side of the filter inner cylinder 12. The protective outer cylinder 13 has a mesh structure and is made of wear-resistant and corrosion-resistant polymer material. The setting of the protective outer cylinder 13 can effectively protect the filter inner cylinder 12 from external mechanical damage and chemical corrosion, and extend the service life of the filter element body 1. A connecting end cap 2 is provided at one end of the filter element body 1. The mounting end of the connecting end cap 2 is installed correspondingly to one end of the filter element body 1, and the mounting end of the connecting end cap 2 is fixedly connected to one end of the filter element body 1. The inner ring of the connecting end cap 2 is provided with internal threads. A connecting ring 5 is provided on one side of the connecting end cap 2, and the mounting end of the connecting ring 5 is fixedly connected to one side of the connecting end cap 2. A sealing end cap 3 is provided at the end of the filter element body 1 away from the connecting end cap 2. The mounting end of the sealing end cap 3 is installed correspondingly to the other end of the filter element body 1, and the mounting end of the sealing end cap 3 is fixedly connected to the other end of the filter element body 1. The two ends of the protective outer cylinder 13 are fixedly connected to the connecting end cap 2 and the sealing end cap 3 respectively, with the outer ring of the sealing end cap 3 provided with external threads. The connecting end cap 2 and the sealing end cap 3 are mutually compatible. The cover 2 and sealing end cover 3 are designed to be compatible with the corresponding filtration equipment. The connecting end cover 2 and sealing end cover 3 are connected by threads, making installation and disassembly simple and convenient. This facilitates the replacement and maintenance of the filter element body 1 and improves work efficiency. A sealing gasket 4 is provided on one side of the sealing end cover 3, and a placement groove 6 is provided on the other side. The mounting end of the sealing gasket 4 is installed corresponding to one side of the inner wall of the placement groove 6, and the outer ring of the sealing gasket 4 is tightly fitted to one side of the inner wall of the placement groove 6. The combination of the connecting ring 5, the placement groove 6, and the sealing gasket 4 makes the filter element body 1 more stable when it is assembled with the corresponding filtration equipment through the connecting end cover 2 and sealing end cover 3, ensuring the sealing performance of the device when assembled and preventing the leakage of unfiltered liquid or gas.
[0016] In this embodiment, during use, the device is installed in the corresponding filtration equipment through the connecting end cap 2 and the sealing end cap 3. The liquid or gas to be filtered enters from one end of the filter element body 1, passes through the protective outer cylinder 13, the filter inner cylinder 12 and the support frame 11, and impurities are intercepted by the filter inner cylinder 12. The filtered liquid or gas flows out from the other end of the filter element body 1. When the filter element body 1 needs to be replaced after a period of use, simply unscrew the connecting end cap 2 and the sealing end cap 3, take out the filter element body 1 to be replaced and replace it.
[0017] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.
Claims
1. A stable and durable pleated filter element, comprising a filter element body (1), characterized in that: The filter element body (1) includes a support frame (11), a filter inner cylinder (12), and a protective outer cylinder (13). The filter inner cylinder (12) is sleeved on the outside of the support frame (11). The outside of the filter inner cylinder (12) has a corrugated structure. Support strips (14) are provided at the corrugation peaks and troughs of the filter inner cylinder (12). The inner ring of the protective outer cylinder (13) is in close contact with the outside of the filter inner cylinder (12). A connecting end cap (2) is provided at one end of the filter element body (1). A sealing end cap (3) is provided at the end of the filter element body (1) away from the connecting end cap (2). A sealing gasket (4) is provided on one side of the sealing end cap (3).
2. The stable and durable pleated filter element according to claim 1, characterized in that, The support frame (11) is made of high-strength metal material, and the inner ring of the filter inner cylinder (12) is installed correspondingly to the outer ring of the support frame (11).
3. The stable and durable pleated filter element according to claim 1, characterized in that, The filter inner cylinder (12) is made of multiple layers of filter material folded and pressed together. The filter material is made of high-precision, high-permeability fiber material.
4. The stable and durable pleated filter element according to claim 1, characterized in that, The support bar (14) is made of hard plastic, and the mounting end of the support bar (14) is installed corresponding to the corrugated structure on the filter inner cylinder (12).
5. A stable and durable pleated filter element according to claim 1, characterized in that, The protective outer cylinder (13) is arranged in a mesh structure and is made of wear-resistant and corrosion-resistant polymer material.
6. The stable and durable pleated filter element according to claim 1, characterized in that, The mounting end of the connecting end cap (2) is installed corresponding to one end of the filter element body (1). The inner ring of the connecting end cap (2) is provided with an internal thread, and a connecting ring (5) is provided on one side of the connecting end cap (2).
7. A stable and durable pleated filter element according to claim 1, characterized in that, The mounting end of the sealing end cap (3) is installed corresponding to the other end of the filter element body (1). The outer ring of the sealing end cap (3) is provided with external threads. The connecting end cap (2) and the sealing end cap (3) are adapted to each other. A placement groove (6) is opened on one side of the sealing end cap (3). The mounting end of the sealing gasket (4) is installed corresponding to one side of the inner wall of the placement groove (6).