Leak-free filter cartridge filter
By introducing a fixed plate and pressure plate structure into the filter cartridge filter, the sealing degree is increased, the leakage problem caused by the aging of the sealing gasket and sealing ring is solved, and a leakage-free filtration effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU PYLIK FLUID TECH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-26
Smart Images

Figure CN224270392U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter cartridge filtration technology, specifically a leak-free filter cartridge filtration machine. Background Technology
[0002] A cartridge filter is a common type of filter, consisting of a filter element and a filter cartridge. The liquid to be filtered is forced in through the filter inlet and passes through the filter cartridge from the outside to the inside of the filter layer, thus becoming a clear liquid. It is then discharged through the outlet. Impurities are trapped in the deep layers and on the surface of the filter cartridge, thereby achieving the purpose of filtration. It is now widely used in the purification of liquids such as water, oil, and paint, as well as in solid-liquid separation in industries such as machinery, metallurgy, chemical, textile, printing and dyeing, electroplating, pharmaceutical, and food.
[0003] However, if the materials of the gaskets and sealing rings used in existing filter cartridges are unsuitable or they age after long-term use, they may lose their elasticity, resulting in poor sealing and liquid leakage.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a leak-free filter cartridge filter. Utility Model Content
[0005] The purpose of this invention is to provide a leak-free filter cartridge to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a leak-free filter cartridge filter, comprising a housing and a fastening assembly. A filter cartridge body is disposed inside the housing, and an mounting ring is installed on the outer side of the top of the filter cartridge body. A fixing plate is installed on the inner wall of the housing. The fastening assembly for pressure sealing to prevent leakage is disposed on the upper end of the fixing plate. The fastening assembly includes a pressure plate, a sealing strip, a connecting frame, a mounting plate, and a mounting rod. A sealing strip is installed on the lower end of the pressure plate, and a connecting frame is connected to the upper end of the pressure plate. The mounting plate is connected to the upper end of the connecting frame, and a mounting rod is installed on the upper end of the mounting plate.
[0007] Furthermore, the housing and the mounting ring are fixedly connected, and the inner diameter of the mounting ring is smaller than the outer diameter of the fixing plate.
[0008] Furthermore, the pressure plate and the sealing strip are tightly fitted together, and the pressure plate is circular in shape.
[0009] Furthermore, the connecting frame is in the shape of an inverted V, and the connecting frame is distributed in a ring about the center point of the pressure plate.
[0010] Furthermore, a water inlet pipe is installed at the bottom of the casing, and a water outlet assembly that is easy to disassemble is provided at the top of the casing.
[0011] Furthermore, the water outlet assembly includes a housing and a water outlet pipe, with the water outlet pipe installed in the middle of the housing.
[0012] Furthermore, the cover and the mounting plate are threaded together, and the cover and the water outlet pipe are an integrated structure.
[0013] Furthermore, the upper end of the mounting ring is connected to an assembly pipe, and the assembly pipe and the water outlet pipe are interlocked.
[0014] This utility model provides a leak-free filter cartridge filter, which has the following beneficial effects:
[0015] 1. This utility model uses a fixing plate and a pressure plate to clamp and fix the mounting ring from the outside. As the mounting plate is installed inside the housing, the pressure plate moves downward, which puts pressure on the mounting ring and the fixing plate, increasing the sealing between them and preventing leakage due to aging.
[0016] 2. This utility model uses the upper part of the outer side of the cover and the mounting plate for the installation of the cover. The water outlet pipe is inserted into the assembly pipe along with the installation of the cover. At this time, the water outlet pipe and the assembly pipe are connected to lead out the liquid that can be filtered by the filter element body. The filter element body filters the liquid that enters the machine housing through the water inlet pipe. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a leak-free filter cartridge of this utility model;
[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of a leak-free filter cartridge of this utility model.
[0019] Figure 3 This is a schematic diagram of the overall disassembled cross-sectional structure of a leak-free filter cartridge filter according to the present invention;
[0020] Figure 4 This is a schematic diagram of the overall disassembled structure of a leak-free filter cartridge of this utility model.
[0021] In the diagram: 1. Housing; 2. Inlet pipe; 3. Outlet assembly; 301. Cover; 302. Outlet pipe; 4. Assembly pipe; 5. Filter cartridge body; 6. Mounting ring; 7. Fixing plate; 8. Fastening assembly; 801. Pressure plate; 802. Sealing strip; 803. Connecting bracket; 804. Mounting plate; 805. Mounting rod. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0023] like Figure 1 and Figure 2 As shown, a leak-free filter cartridge includes a housing 1 and a fastening assembly 8. A filter cartridge body 5 is disposed inside the housing 1. The filter cartridge body 5 filters the liquid entering the housing 1 through the inlet pipe 2. An mounting ring 6 is installed on the outer side of the top of the filter cartridge body 5. The housing 1 and the mounting ring 6 are fixedly connected. The inlet pipe 2 is installed at the bottom of the housing 1, and a water outlet assembly 3 for easy disassembly and assembly is provided at the top of the housing 1. The water outlet assembly 3 includes a cover 301 and an outlet pipe 302, and a fastening assembly 8 is installed in the middle of the cover 301. The filter element body 5 is equipped with a water outlet pipe 302. The upper part of the outer side of the cover 301 and the mounting plate 804 is connected for the installation of the cover 301. The cover 301 and the mounting plate 804 are threaded together, and the cover 301 and the water outlet pipe 302 are an integrated structure. The upper end of the mounting ring 6 is connected to the assembly pipe 4, and the assembly pipe 4 and the water outlet pipe 302 are snap-fitted together. The water outlet pipe 302 is inserted into the assembly pipe 4 as the cover 301 is installed. At this time, the water outlet pipe 302 and the assembly pipe 4 are connected to lead out the liquid that can be filtered by the filter element body 5.
[0024] like Figure 3 and Figure 4 As shown, a fixing plate 7 is installed on the inner wall of the housing 1. The fixing plate 7 and the pressure plate 801 clamp and fix the mounting ring 6 from the outside. The inner diameter of the mounting ring 6 is smaller than the outer diameter of the fixing plate 7. A fastening assembly 8 for pressure sealing to prevent leakage is set at the upper end of the fixing plate 7. The fastening assembly 8 includes a pressure plate 801, a sealing strip 802, a connecting bracket 803, a mounting plate 804, and a mounting rod 805. The sealing strip 802 is installed at the lower end of the pressure plate 801. As the mounting plate 804 is installed inside the housing 1, the pressure plate 801 moves downward, causing the pressure plate 801 to apply pressure to the mounting ring 6 and the fixing plate 7, increasing the pressure. The sealing between them prevents leakage due to aging. The pressure plate 801 and the sealing strip 802 fit tightly together. The pressure plate 801 is circular in shape, and the upper end of the pressure plate 801 is connected to the connecting bracket 803. The upper end of the connecting bracket 803 is connected to the mounting plate 804. The mounting plate 804 is threaded to the inner top of the housing 1, which increases the ease of installation of the fastening assembly 8. The connecting bracket 803 is inverted V-shaped and is distributed in a ring around the center point of the pressure plate 801. The connecting bracket 803 is used to connect the mounting plate 804 and the pressure plate 801, and the upper end of the mounting plate 804 is equipped with the mounting rod 805.
[0025] In summary, this leak-free filter cartridge filter firstly... Figures 1-4The structure shown involves installing the filter element body 5 from top to bottom into the interior of the housing 1. Then, holding the mounting rod 805, the pressure plate 801 is installed onto the upper end of the mounting ring 6. During installation, the mounting plate 804 is rotated so that the thread on its side connects with the thread on the inner wall of the top of the housing 1. At this time, the pressure plate 801 moves downward as the mounting plate 804 is installed inside the housing 1, so that the pressure plate 801 applies pressure to the mounting ring 6 and the fixing plate 7, increasing the sealing between them and preventing leakage due to aging. Then, the upper part of the outer side of the housing 301 and the mounting plate 804 are connected for the installation of the housing 301. During installation, the water outlet pipe 302 needs to be inserted into the assembly pipe 4 along with the installation of the housing 301. Then, the water inlet pipe 2 is connected to the pipeline, and the water outlet pipe 302 is connected to the pipeline, so that the liquid to be purified enters the housing 1 and is purified by the filter element body 5. Finally, the assembly pipe 4 and the water outlet pipe 302 lead out the filtered liquid.
[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A leak-free filter cartridge filter, comprising a housing (1) and a fastening assembly (8), characterized in that, The housing (1) is provided with a filter element body (5) inside, and an installation ring (6) is installed on the outer side of the top of the filter element body (5). A fixing plate (7) is installed on the inner wall of the housing (1). The fastening assembly (8) for pressure sealing to prevent leakage is set on the upper end of the fixing plate (7). The fastening assembly (8) includes a pressure plate (801), a sealing strip (802), a connecting frame (803), an mounting plate (804), and a mounting rod (805). The lower end of the pressure plate (801) is equipped with a sealing strip (802), and the upper end of the pressure plate (801) is connected to the connecting frame (803). The upper end of the connecting frame (803) is connected to the mounting plate (804), and the upper end of the mounting plate (804) is equipped with a mounting rod (805).
2. The leak-free filter cartridge filter according to claim 1, characterized in that, The housing (1) and the mounting ring (6) are fixedly connected, and the inner diameter of the mounting ring (6) is smaller than the outer diameter of the fixing plate (7).
3. The leak-free filter cartridge filter according to claim 1, characterized in that, The pressure plate (801) and the sealing strip (802) are tightly fitted together, and the pressure plate (801) is circular in shape.
4. The leak-free filter cartridge filter according to claim 1, characterized in that, The connecting frame (803) is in the shape of an inverted V, and the connecting frame (803) is distributed in a ring about the center point of the pressure plate (801).
5. A leak-free filter cartridge filter according to claim 1, characterized in that, The bottom of the housing (1) is equipped with a water inlet pipe (2), and the top of the housing (1) is equipped with a water outlet assembly (3) that is easy to disassemble and assemble.
6. A leak-free filter cartridge filter according to claim 5, characterized in that, The water outlet assembly (3) includes a housing (301) and a water outlet pipe (302), and the water outlet pipe (302) is installed in the middle of the housing (301).
7. A leak-free filter cartridge filter according to claim 6, characterized in that, The machine cover (301) and the mounting plate (804) are threaded together, and the machine cover (301) and the water outlet pipe (302) are an integrated structure.
8. A leak-free filter cartridge filter according to claim 1, characterized in that, The upper end of the mounting ring (6) is connected to the assembly pipe (4), and the assembly pipe (4) and the water outlet pipe (302) are connected by a snap-fit connection.