Large-flow filter element three-point pressing mechanism
By using a three-point equilateral distribution pressing structure and positioning plate design, the problems of inconvenient operation and unstable pressing effect of high-flow filter cartridge fixing methods are solved, achieving uniform force distribution on the filter cartridge body and convenient installation, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江美易膜科技有限公司
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-28
AI Technical Summary
Existing high-flow filter cartridges are typically fixed using multi-point bolt pre-tightening or complex mechanical structures, resulting in poor operational convenience, unstable clamping effect, high maintenance costs, and poor practicality.
The filter element adopts a three-point equilateral distribution clamping structure, combined with the design of the flange cover, filter element support basket and filter element support plate. Through the positioning of the three-point clamping ring and positioning plate, the filter element body is subjected to uniform force and is easy to install.
It achieves uniform stress on the filter element body, adapts to different specifications of filter elements, is easy to install, reduces maintenance costs, and improves practicality and ease of operation.
Smart Images

Figure CN224167082U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-flow filter element technology, and in particular to a three-point pressing mechanism for high-flow filter elements. Background Technology
[0002] In industries such as chemical, food and beverage, pharmaceutical, and water treatment, the demand for fluid filtration flow rates has increased significantly as production scale expands. Traditional clamping methods struggle to ensure the stability and sealing of filter elements under high flow conditions, easily leading to problems such as decreased filtration efficiency and leakage. Therefore, a clamping mechanism suitable for high-flow filtration is needed.
[0003] Currently, the existing three-point clamping mechanism for high-flow filter elements typically uses multi-point bolt pre-tightening or complex mechanical structures for fixing. This results in poor operational convenience, unstable clamping effect, high maintenance costs, significant limitations, and poor practicality. Summary of the Invention
[0004] The purpose of this utility model is to solve the problems in the existing technology of fixing high-flow filter elements, which usually involves multi-point bolt pre-tightening or complex mechanical structures. On the one hand, the operation is not convenient, on the other hand, the clamping effect is unstable, and the maintenance cost is high, which has great limitations and poor practicality. The proposed three-point clamping mechanism for high-flow filter elements is to address these issues.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a high-flow filter element three-point clamping mechanism, including a housing, a cylindrical flange fixed to one end of the housing, a flange cover installed at the end of the cylindrical flange away from the housing, a filter element body placed inside the housing, a high-flow filter element receiving ring installed at the end of the filter element body facing the flange cover, three three-point clamping rings installed at the end of the high-flow filter element receiving ring away from the filter element body, a high-flow filter element clamping handle fixed inside the three three-point clamping rings at the end of the high-flow filter element receiving ring away from the filter element body, one end of the high-flow filter element clamping handle abutting against the flange cover, a sealing head fixed to the other end of the housing, and an inlet and outlet fixed to the outer wall of the housing.
[0006] Preferably, the flange cover is fixed to the cylindrical flange by bolts and nuts, and three positioning plates are installed inside the high-flow filter element receiving ring for positioning the three-point clamping ring.
[0007] Preferably, a first threaded connector is fixed to the top outer wall of the housing, and a second threaded connector is fixed to the bottom outer wall of the housing.
[0008] Preferably, a connecting pipe is fixed to the end of the end cap away from the shell, an O-ring is provided between the flange cover and the cylindrical flange, and a filter element support plate that matches the filter element body is fixed on the inner wall of the shell.
[0009] Preferably, a filter element support basket is fixed to the end of the filter element body away from the flange cover, and the end of the filter element support basket away from the filter element body abuts against the end cap.
[0010] Preferably, a fastening strap and a base are fitted onto the outer wall of the housing, and a support leg is fixed to the bottom end of the fastening strap and the base.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] This invention employs a unique three-point equilateral distribution pressing structure, which, compared to traditional pressing methods, allows for more even force distribution on the filter element body, reducing damage caused by localized stress concentration. Furthermore, the position of the three-point pressing rings can be finely adjusted due to the positioning plates, adapting to different filter element specifications and enhancing practicality. Additionally, the device, with its flange cover, filter element support basket, and filter element support plate, provides abutment installation of the filter element body, making installation and disassembly more convenient and practical. Moreover, all components are very simple, resulting in low manufacturing costs and enhanced usability. Attached Figure Description
[0013] Figure 1 A perspective view of the three-point pressing mechanism for a high-flow filter element is provided for this utility model;
[0014] Figure 2 This utility model provides a cross-sectional view of the filter element body of a three-point pressing mechanism for high-flow filter elements;
[0015] Figure 3 A side sectional view of the three-point pressing mechanism for a high-flow filter element proposed in this utility model;
[0016] Figure 4 A half-sectional view of the three-point pressing mechanism for a high-flow filter element is provided for this utility model.
[0017] Legend: 1. Flange cover; 2. Cylinder flange; 3. Inlet / outlet; 4. Shell; 5. Support leg; 6. End cap; 7. Bolt and nut; 9. High-flow filter element receiving ring; 10. Filter element body; 11. O-ring; 12. First threaded connector; 13. Connecting pipe; 14. Second threaded connector; 15. Filter element support basket; 16. Filter element support plate; 17. Fastening strap and base; 18. Three-point clamping ring; 19. Positioning plate; 20. High-flow filter element clamping handle. Detailed Implementation
[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Example 1, as Figures 1-4 As shown, this utility model provides a three-point clamping mechanism for a high-flow filter element, including a housing 4. A cylindrical flange 2 is fixed to one end of the housing 4. A flange cover 1 is installed at the end of the cylindrical flange 2 away from the housing 4. A filter element body 10 is placed inside the housing 4. A high-flow filter element receiving ring 9 is installed at the end of the filter element body 10 facing the flange cover 1. Three three-point clamping rings 18 are installed at the end of the high-flow filter element receiving ring 9 away from the filter element body 10. A high-flow filter element clamping handle 20 is fixed inside the three three-point clamping rings 18 at the end of the high-flow filter element receiving ring 9 away from the filter element body 10. One end of the high-flow filter element clamping handle 20 abuts against the flange cover 1. A cap 6 is fixed to the other end of the housing 4. An inlet and outlet 3 are fixed on the outer wall of the housing 4.
[0021] The overall effect of Embodiment 1 is that, by adopting a unique three-point equilateral distribution compression structure, compared with the traditional compression method, the filter element body 10 can be subjected to more uniform force, reducing the possibility of damage to the filter element body 10 due to local stress concentration. Moreover, the position of the three-point compression ring 18 can be finely adjusted due to the positioning plate 19, adapting to different specifications of filter element bodies 10, thus enhancing practicality. In addition, the device, through the setting of flange cover 1, filter element support basket 15 and filter element support plate 16, provides abutment installation for the filter element body 10, making installation and disassembly more convenient and practical. Furthermore, each component is very simple, with low manufacturing cost, further enhancing practicality. Through the setting of the high-flow filter element receiving ring 9, the three-point compression ring 18 and the positioning plate 19 are located within the high-flow filter element receiving ring 9, and during compression, the contact end applies pressure to the high-flow filter element receiving ring 9, preventing damage to the filter element body 10.
[0022] Example 2, as Figures 1-4As shown, the flange cover 1 is fixed to the cylindrical flange 2 by bolts and nuts 7. Three positioning pieces 19 are installed inside the high-flow filter element receiving ring 9 to position the three-point clamping ring 18. The top outer wall of the housing 4 is fixed with a first threaded joint 12, and the bottom outer wall of the housing 4 is fixed with a second threaded joint 14. The end of the end cap 6 away from the housing 4 is fixed with a connecting pipe 13. An O-ring 11 is provided between the flange cover 1 and the cylindrical flange 2. The inner wall of the housing 4 is fixed with a filter element support plate 16 that matches the filter element body 10. The end of the filter element body 10 away from the flange cover 1 is fixed with a filter element support basket 15. The end of the filter element support basket 15 away from the filter element body 10 abuts against the end cap 6. A fastening strap and base 17 are fitted onto the outer wall of the housing 4. The bottom end of the fastening strap and base 17 is fixed with a support leg 5.
[0023] The overall effect of embodiment 2 is that, through the setting of the positioning piece 19, the three-point clamping ring 18 can be positioned, so that the three-point clamping ring 18 can be finely adjusted and positioned, making it more practical. Through the setting of the filter element support basket 15, one end of the filter element body 10 will not contact the end cap 6, thus avoiding damage to it.
[0024] Working Principle: This device employs a unique three-point equilateral compression structure, which, compared to traditional compression methods, allows for more even force distribution on the filter element body 10, reducing damage caused by localized stress concentration. Furthermore, the position of the three-point compression ring 18 can be finely adjusted by the positioning plate 19 to accommodate different specifications of filter element bodies 10, enhancing its practicality. Additionally, the device, through the flange cover 1, filter element support basket 15, and filter element support plate 16, provides abutment installation for the filter element body 10, making installation and disassembly more convenient and practical. Each component is very simple, resulting in low manufacturing costs and enhanced usability. The high-flow filter element receiving ring 9 ensures that the three-point compression ring 18 and positioning plate 19 are located within it. During compression, the contact end applies pressure to the high-flow filter element receiving ring 9, preventing damage to the filter element body 10.
[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A three-point pressing mechanism for high-flow filter cartridges, comprising a housing (4), characterized in that: One end of the housing (4) is fixed with a cylindrical flange (2), and the end of the cylindrical flange (2) away from the housing (4) is fitted with a flange cover (1). The housing (4) contains a filter element body (10). The end of the filter element body (10) facing the flange cover (1) is fitted with a high-flow filter element receiving ring (9). The end of the high-flow filter element receiving ring (9) away from the filter element body (10) is fitted with three three-point clamping rings (18). The end of the high-flow filter element receiving ring (9) away from the filter element body (10) is located inside the three three-point clamping rings (18) and a filter element high-flow clamping handle (20) is fixed therein. One end of the filter element high-flow clamping handle (20) abuts against the flange cover (1). The other end of the housing (4) is fixed with a cap (6). The outer wall of the housing (4) is fixed with an inlet and outlet (3).
2. The high-flow-rate filter element three-point pressing mechanism according to claim 1, characterized in that: The flange cover (1) is fixed to the cylindrical flange (2) by bolts and nuts (7), and three positioning pieces (19) are installed inside the high flow filter element receiving ring (9) to position the three-point clamping ring (18).
3. The high-flow-rate filter element three-point pressing mechanism according to claim 1, characterized in that: The top outer wall of the housing (4) is fixed with a first threaded connector (12), and the bottom outer wall of the housing (4) is fixed with a second threaded connector (14).
4. The high-flow-rate filter element three-point pressing mechanism according to claim 1, characterized in that: The end cap (6) is fixed with a pipe (13) at the end away from the shell (4), and an O-ring (11) is provided between the flange cover (1) and the cylindrical flange (2). A filter element support plate (16) matching the filter element body (10) is fixed on the inner wall of the shell (4).
5. The high-flow-rate filter element three-point pressing mechanism according to claim 1, characterized in that: The filter element body (10) is fixed with a filter element support basket (15) at the end away from the flange cover (1), and the end of the filter element support basket (15) away from the filter element body (10) abuts against the end cap (6).
6. The high-flow-rate filter element three-point pressing mechanism according to claim 1, characterized in that: A fastening strap and a base (17) are fitted onto the outer wall of the housing (4), and a support leg (5) is fixed to the bottom end of the fastening strap and the base (17).