Novel filter element structure with good sealing performance
By designing a static sealing ring and a multi-layer filtration structure in the filter element, the sealing problem during the disassembly of traditional filter elements is solved, and efficient water purification and odor removal are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI WANCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional filter cartridge structures are prone to sealing ring displacement or elastic fatigue when frequently disassembled and replaced, leading to leakage at the interface and affecting the airtightness of the filtration system.
A novel filter element structure is designed, in which the sealing ring only performs the static sealing function, and the rotational friction is borne by the outer wall of the convex ring and the inner wall of the groove. Combined with a multi-layer filtration structure of polypropylene fiber, activated carbon fiber cloth and nano-ceramic membrane, effective water purification is achieved.
It can maintain its sealing performance even after multiple disassembly and assembly, and effectively purifies water quality and removes odors through its multi-layer filtration structure, thus improving the practicality and purification effect of the filter element.
Smart Images
Figure CN224212530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter element technology, and in particular to a novel filter element structure with good sealing performance. Background Technology
[0002] With the continuous development of water treatment technology, filter element structure design has become a core element in improving the efficiency of water purification equipment.
[0003] Traditional filter cartridge housings often rely on a single-layer sealing ring for waterproofing at the connection points. However, when frequently disassembling and replacing the filter cartridge, the sealing ring is prone to displacement or elastic fatigue. Especially in threaded connection structures, the friction generated by rotational assembly can cause the sealing ring to wear. After long-term use, this can easily lead to leakage at the interface, affecting the airtightness of the filtration system. To solve the above problems, this application proposes a novel filter cartridge structure with good sealing performance. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a novel filter element structure with excellent sealing performance. The sealing ring in this filter element only performs a static sealing function, while the rotational friction is borne by the outer wall of the convex ring and the inner wall of the groove. Tests have shown that it can maintain its sealing performance even after multiple disassemblies and reassemblies. By combining polypropylene fiber, activated carbon fiber cloth, and nano-ceramic membrane, it can effectively purify water and remove odors, making it highly practical.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A novel filter element structure with good sealing performance includes a first housing, a second housing on one side of the first housing, a first sealing ring fixedly connected to one end of the second housing near the first housing, the outer wall of the first sealing ring abutting against the first housing, a waterproof sealing cloth bonded to the contact portion of the first and second housings, a hollow column fixedly connected to the second housing through it, a fixing ring fixedly connected to the outer wall of the hollow column, a receiving groove between the fixing ring and the inner wall of the second housing, a conveying pipe fixedly connected to the first housing through it, a sealing structure between the hollow column and the conveying pipe, a filter element sleeved on the outer wall of the conveying pipe, the two ends of the filter element abutting against the inner wall of the first housing and the side wall of the fixing ring respectively, and multiple through holes through the conveying pipe.
[0007] Preferably, the sealing structure includes a slot formed on a hollow column, the end of the delivery pipe is inserted into the slot, and a second sealing ring is fixedly connected to the side wall of the end of the delivery pipe, the second sealing ring abutting against the inner wall of the slot.
[0008] Preferably, a protruding ring is fixedly connected to one end of the first housing near the second housing, and a groove is provided on one end of the second housing near the first housing, with the protruding ring threadedly connected to the groove.
[0009] Preferably, a protruding ring is fixedly connected to one end of the first housing near the second housing, and a groove is provided on one end of the second housing near the first housing, with the protruding ring threadedly connected to the groove.
[0010] Preferably, the filter element is configured with three layers: the outer layer is a gradient-wound polypropylene fiber, the middle layer is an embedded activated carbon fiber cloth, and the inner layer is a nano-ceramic membrane.
[0011] Preferably, the first housing has multiple drain outlets through it, and a second filter screen is fixedly connected to the inner wall of each drain outlet.
[0012] Compared with the prior art, the advantages of this utility model are as follows:
[0013] 1. Water is injected from the outside through the inlet, filling the receiving tank. The water passes evenly through the area between the fixing ring and the inner wall of the second housing, allowing the water to pass through the outer, middle and inner layers of the filter element in sequence, thus achieving water filtration.
[0014] 2. Staff can tear open the waterproof sealing cloth, hold the outer walls of the first and second shells with both hands respectively, and rotate the two shells relative to each other to separate them. The filter element can then be removed and replaced to ensure the water purification effect.
[0015] 3. The sealing ring in this filter element only performs the static sealing function. The rotational friction is borne by the outer wall of the convex ring and the inner wall of the groove. Tests have shown that it can still maintain its sealing performance after multiple disassembly and assembly.
[0016] In summary, the sealing ring in this filter element only performs a static sealing function, while the rotational friction is borne by the outer wall of the convex ring and the inner wall of the groove. Tests have shown that it can maintain its sealing performance even after multiple disassemblies and reassemblies. By combining polypropylene fiber, activated carbon fiber cloth and nano-ceramic membrane, it can effectively purify water and remove odors, making it highly practical. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a novel filter element structure with good sealing performance proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the first cross-section of a novel filter element structure with good sealing performance proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the second cross-section of a novel filter element structure with good sealing performance proposed in this utility model;
[0020] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;
[0021] Figure 5 for Figure 3 Enlarged view of the structure at point B in the middle.
[0022] In the diagram: 1 First housing, 2 Second housing, 3 Convex ring, 4 Groove, 5 First sealing ring, 6 Waterproof sealing cloth, 7 Water inlet, 8 First filter screen, 9 Fixing ring, 10 Receiving groove, 11 Hollow column, 12 Delivery pipe, 13 Slot, 14 Second sealing ring, 15 Through hole, 16 Drain outlet, 17 Second filter screen, 18 Filter element. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figures 1-5 A novel filter element structure with good sealing performance includes a first housing 1, a second housing 2 on one side of the first housing 1, a protruding ring 3 fixedly connected to one end of the first housing 1 near the second housing 2, a groove 4 opened at one end of the second housing 2 near the first housing 1, the protruding ring 3 and the groove 4 being threadedly connected, a first sealing ring 5 fixedly connected to one end of the second housing 2 near the first housing 1, the outer wall of the first sealing ring 5 abutting against the first housing 1, and a waterproof sealing cloth 6 bonded to the contact part of the first housing 1 and the second housing 2. The operator can tear off the waterproof sealing cloth 6, hold the outer walls of the first housing 1 and the second housing 2 with both hands respectively, and rotate the two housings relative to each other to separate the two housings, so that the filter element 18 can be removed and replaced, ensuring the water purification effect.
[0025] The second housing 2 has multiple water inlets 7 at the end away from the first housing 1. Each water inlet 7 has a first filter screen 8 fixedly connected to its inner wall. Water is injected through the water inlet 7. A hollow column 11 is fixedly connected to the second housing 2. A fixing ring 9 is fixedly connected to the outer wall of the hollow column 11. A receiving groove 10 is set between the fixing ring 9 and the inner wall of the second housing 2. Water first fills the receiving groove 10 and first passes through the outer, middle and inner layers of the filter element 18 to achieve water filtration.
[0026] A conveying pipe 12 is provided through the first housing 1 and fixedly connected thereto. A sealing structure is provided between the hollow column 11 and the conveying pipe 12. The sealing structure includes a slot 13 opened on the hollow column 11. The end of the conveying pipe 12 is inserted into the slot 13. A second sealing ring 14 is fixedly connected to the side wall of the end of the conveying pipe 12. The second sealing ring 14 abuts against the inner wall of the slot 13 to ensure a sealed arrangement between the hollow column 11 and the conveying pipe 12.
[0027] A filter element 18 is fitted on the outer wall of the delivery pipe 12. The filter element 18 is tightly fitted to the outer wall of the delivery pipe 12, forcing water to permeate from the outside to the inside. The filter element 18 is configured with three layers: the outer layer is a gradient-wound polypropylene fiber, the middle layer is an embedded activated carbon fiber cloth, and the inner layer is a nano-ceramic membrane. The outer layer intercepts particles larger than 10 micrometers, the middle layer adsorbs organic matter and odors, and the inner layer filters particles smaller than 10 micrometers, thus achieving water purification.
[0028] The two ends of the filter element 18 are respectively abutted against the inner wall of the first housing 1 and the side wall of the fixing ring 9. Multiple through holes 15 are opened through the conveying pipe 12, and multiple drain ports 16 are opened through the first housing 1. A second filter screen 17 is fixedly connected to the inner wall of each drain port 16. The purified water is discharged through the conveying pipe 12, while the wastewater formed by impurities with the water is discharged through the drain port 16.
[0029] In this invention, external water is injected through the inlet 7, filling the receiving tank 10. Water is evenly distributed through the area between the fixing ring 9 and the inner wall of the second housing 2, passing sequentially through the outer, middle, and inner layers of the filter element 18 (the outer layer traps particles larger than 10 micrometers, the middle layer adsorbs organic matter and odors, and the inner layer filters particles smaller than 10 micrometers). The purified water is then injected into the delivery pipe 12 through multiple through holes 15 and finally discharged through the end of the delivery pipe 12. The filtered wastewater is discharged to the outside through the second filter screen 17, thus achieving water purification. Workers can tear open the waterproof sealing cloth 6, grasp the outer walls of the first housing 1 and the second housing 2 with both hands, and rotate the two housings relative to each other to separate them, allowing the filter element 18 to be removed and replaced, ensuring effective water purification.
Claims
1. A novel filter element structure with good sealing performance, comprising a first housing (1), characterized in that, A second housing (2) is provided on one side of the first housing (1). A first sealing ring (5) is fixedly connected to one end of the second housing (2) near the first housing (1). The outer wall of the first sealing ring (5) abuts against the first housing (1). A waterproof sealing cloth (6) is bonded to the contact part of the first housing (1) and the second housing (2). A hollow column (11) is fixedly connected to the second housing (2). A fixing ring (9) is fixedly connected to the outer wall of the hollow column (11). A receiving groove (10) is provided between the fixing ring (9) and the inner wall of the second housing (2). A conveying pipe (12) is fixedly connected to the first housing (1). A sealing structure is provided between the hollow column (11) and the conveying pipe (12). A filter element (18) is sleeved on the outer wall of the conveying pipe (12). The two ends of the filter element (18) abut against the inner wall of the first housing (1) and the side wall of the fixing ring (9), respectively. Multiple through holes (15) are opened through the conveying pipe (12).
2. The novel filter element structure with good sealing performance according to claim 1, characterized in that, The sealing structure includes a slot (13) opened on the hollow column (11), the end of the delivery pipe (12) is inserted into the slot (13), and a second sealing ring (14) is fixedly connected to the side wall of the end of the delivery pipe (12), and the second sealing ring (14) abuts against the inner wall of the slot (13).
3. The novel filter element structure with good sealing performance according to claim 1, characterized in that, The first housing (1) is fixedly connected to a protruding ring (3) at one end near the second housing (2), and the second housing (2) is provided with a groove (4) at one end near the first housing (1). The protruding ring (3) is threadedly connected to the groove (4).
4. The novel filter element structure with good sealing performance according to claim 1, characterized in that, The second housing (2) has multiple water inlets (7) at the end away from the first housing (1), and a first filter screen (8) is fixedly connected to the inner wall of each water inlet (7).
5. The novel filter element structure with good sealing performance according to claim 1, characterized in that, The filter core (18) is configured with three layers: the outer layer is a gradient-wound polypropylene fiber, the middle layer is an embedded activated carbon fiber cloth, and the inner layer is a nano-ceramic membrane.
6. The novel filter element structure with good sealing performance according to claim 1, characterized in that, The first housing (1) has multiple drain ports (16) through it, and a second filter screen (17) is fixedly connected to the inner wall of each drain port (16).