Water treatment filter element assembly convenient to disassemble and clean
By using the directional fit between the slider and the mounting base groove and the automatic locking and unlocking mechanism of the limit block, the problems of redundant disassembly steps and low efficiency of threaded transmission in water treatment filter cartridges are solved, enabling convenient disassembly and efficient cleaning.
Patent Information
- Application Number
- CN202620040381.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-14
- Publication Date
- 2026-05-08
- Estimated Expiration
- 2036-01-14
AI Technical Summary
The disassembly of existing water treatment filter cartridges requires multiple steps, which are redundant and rely on multiple threaded drives, resulting in low operating efficiency. After long-term use, scale and corrosion can easily cause jamming or stripping of threads, increasing the difficulty of disassembly.
The filter element is directly pushed into the mounting base by the slider and the mounting base groove. The inclined surfaces of the limiting block and the fixing block slide automatically and are locked by the compression spring. The sealing ring is interference fit with the mounting base. When disassembling, the limiting block is disengaged from the fixing block and the slider is pulled in the opposite direction to remove the filter element, avoiding the rotation of the threads and simplifying the operation.
It greatly simplifies the assembly process, avoids jamming and stripping problems caused by threaded drives, ensures sealing, improves disassembly efficiency, and reduces the impact of scale and rust.
Smart Images

Figure CN224207548U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water treatment filter cartridge technology, and in particular to a water treatment filter cartridge assembly that is easy to disassemble and clean. Background Technology
[0002] As a core functional component of water treatment equipment, water treatment filter cartridges are widely applicable to various scenarios such as household water purification, industrial water circulation treatment, and municipal water supply purification. Relying on the interception function of filter media, they remove pollutants such as impurities, suspended solids, and odor molecules from the water, thereby achieving water purification and quality improvement, ensuring that the output water quality meets various usage standards. In order to maintain stable filtration efficiency, filter cartridges need to be cleaned regularly, so a water treatment filter cartridge assembly that is easy to disassemble and clean is required.
[0003] A search revealed a patent with publication number CN215841880U that discloses an energy-saving water treatment device. The patent describes a method for cleaning the filter element of the water purifier body by setting a limiting filter mechanism. When cleaning the filter element is required, the screw is unscrewed, and the L-shaped locking plate is pulled to move the movable protective plate. The movable protective plate separates from the arc-shaped through groove. Then, the first and second threaded rings are rotated respectively. The first threaded ring rotates upwards and separates from the top of the limiting filter cylinder, while the second threaded ring rotates downwards and separates from the bottom of the limiting filter cylinder. Finally, the movable handle is pulled to remove the limiting filter cylinder for cleaning the filter element. The design is simple and reasonable, reducing the inconvenience of disassembling the filter element in water treatment devices and improving the practicality of the water treatment device. It avoids the need for frequent cleaning of the filter element in existing household water treatment devices, which is necessary for normal use. However, the disassembly of the filter element in water treatment devices is often inconvenient, and the cleaning of the filter element is troublesome and inconvenient to use. The disassembly of the filter element requires multiple steps, such as unscrewing the screw, pulling the L-shaped clamp, separating the movable protective plate, and rotating the first threaded ring and the second threaded ring respectively. The steps are redundant and rely on multiple thread transmissions, which not only results in low operating efficiency, but also makes the threads susceptible to scale and corrosion after long-term use, causing jamming or stripping, which increases the difficulty of disassembly.
[0004] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content
[0005] The purpose of this utility model is to provide a water treatment filter element assembly that is easy to disassemble and clean, in order to solve the problems mentioned in the background art, such as the need for multiple steps to disassemble the filter element, which are redundant and rely on multiple threaded drives. This not only results in low operating efficiency, but also makes the threads susceptible to scale and corrosion after long-term use, causing jamming or stripping, which increases the difficulty of disassembly.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a water treatment filter element assembly that is easy to disassemble and clean, including a mounting base.
[0007] A filter mechanism is installed at the front end of the mounting base;
[0008] The filtration mechanism includes a filter element, a sealing ring at the front end of the filter element, a slider at the upper end of the filter element, a fixing box at the front end of the sealing ring, fixing rods penetrating through both ends of the fixing box, an mounting plate installed inside the fixing box, a connecting ring sleeved on the outer ring of the fixing rods, a limit plate installed at the left end of the connecting ring, a limit block installed at the lower end of the limit plate, a spring installed at the upper end of the limit plate, a connecting box installed at the front end of the mounting base, a connecting plate installed inside the connecting box, and a fixing block installed at the front end of the connecting plate.
[0009] Preferably, the upper end of the mounting base is provided with a sliding groove, and the mounting base and the slider are slidably connected through the sliding groove.
[0010] Preferably, the limiting plate and the mounting plate form a rotating structure through a connecting ring, and the limiting plate and the fixing box are connected by a spring.
[0011] Preferably, the limiting blocks are arranged in an array along the length of the limiting plate, and the right end of the fixing block is provided with an inclined surface.
[0012] Preferably, a water inlet pipe is installed at the upper end of the mounting base, and a water outlet pipe is installed at the lower end of the mounting base.
[0013] Preferably, the upper end of the mounting base is provided with a water inlet, and the upper end of the mounting base is provided with a first fixing ring. Both ends of the first fixing ring are connected by connecting rods. The outer ring of the connecting rod is fitted with a second fixing ring, and the outer ring of the second fixing ring is fitted with a blade.
[0014] Preferably, the outer ring of the connecting rod is fitted with a cam, and the maximum diameter of the cam is greater than the distance between it and the upper end face of the filter element.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. To address the issues of low efficiency due to multiple steps and reliance on threaded drives in filter element disassembly, and the risk of jamming and stripping due to scale and corrosion over long-term use, a sliding block with a mounting base groove is adopted. The filter element can be directly pushed into the mounting base via the sliding block without additional rotation for positioning, greatly simplifying the basic assembly steps. Secondly, assembly can be completed in only two steps. During the insertion of the fixing box into the connecting box, the limiting block automatically slides along the inclined surface of the fixing block and compresses the spring. After reaching the correct position, the spring automatically resets to lock, simultaneously causing the front end of the sealing ring to tightly press against the filter element, and the outer ring to fit tightly against the front end of the mounting base, forming a double reliable seal. This eliminates the need for threaded tightening force and avoids uneven sealing force. Furthermore, during disassembly, simply push the limiting plate upward to disengage the limiting block from the fixing block. After unlocking, simply pull out the fixing box, which simultaneously causes the sealing ring to disengage from the filter element and mounting base. Subsequently, the filter element can be easily removed by pulling the sliding block in the opposite direction. The entire process involves no threaded drives, avoiding the impact of scale and corrosion on the smoothness of disassembly. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the interlocking structure of the connecting rod and the cam in this utility model;
[0019] Figure 3 This is a schematic diagram of the interaction between the filter element and the slider of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure in which the limiting block and the fixing block of this utility model cooperate with each other.
[0021] In the diagram: 1. Mounting base; 2. Filtering mechanism; 201. Filter element; 202. Sealing ring; 203. Slider; 204. Fixing box; 205. Fixing rod; 206. Mounting plate; 207. Connecting ring; 208. Limiting plate; 209. Limiting block; 210. Spring; 211. Connecting box; 212. Connecting plate; 213. Fixing block; 3. Inlet pipe; 4. Outlet pipe; 5. First fixing ring; 6. Connecting rod; 7. Second fixing ring; 8. Paddle; 9. Cam. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 This utility model provides a technical solution: a water treatment filter element assembly that is easy to disassemble and clean, including a mounting base 1.
[0024] A filter mechanism 2 is installed at the front end of the mounting base 1;
[0025] The filter mechanism 2 includes a filter element 201. A sealing ring 202 is provided at the front end of the filter element 201. A slider 203 is installed at the upper end of the filter element 201. A fixing box 204 is installed at the front end of the sealing ring 202. Fixing rods 205 are connected through both ends of the fixing box 204. An mounting plate 206 is installed inside the fixing box 204. A connecting ring 207 is sleeved on the outer ring of the fixing rod 205. A limit plate 208 is installed at the left end of the connecting ring 207. A limit block 209 is installed at the lower end of the limit plate 208. A spring 210 is installed at the upper end of the limit plate 208. A connecting box 211 is installed at the front end of the mounting base 1. A slider 203 is installed inside the connecting box 211. There is a connecting plate 212, and a fixing block 213 is installed at the front end of the connecting plate 212. In use, the filter element 201 is pushed along the slide groove of the mounting base 1 by the slider 203 manually. The fixing box 204 equipped with the sealing ring 202 is inserted into the connecting box 211. The limiting block 209 slides along the inclined surface of the fixing block 213 and is reset and locked by the spring 210. The sealing ring 202 simultaneously presses against the filter element 201 and the outer ring is in close contact with the mounting base 1 for sealing. When disassembling, push the limiting plate 208 upward to make the limiting block 209 disengage from the fixing block 213, pull out the fixing box 204 and drive the sealing ring 202 to disengage. Pull the slider 203 in the opposite direction to take out the filter element 201.
[0026] Furthermore, the upper end of the mounting base 1 is provided with a sliding groove. The mounting base 1 and the slider 203 are slidably connected through the sliding groove. With the slider 203, one end is fixedly connected to the upper end of the filter element 201, and the other end forms a sliding fit with the sliding groove at the upper end of the mounting base 1. This not only provides a stable directional movement trajectory for the filter element 201 during assembly, but also guides the filter element 201 to smoothly advance into the mounting base 1 and accurately align with the preset assembly position, preventing the filter element 201 from shifting or tilting during installation, and ensuring the subsequent sealing performance of the sealing ring 202 with the mounting base 1 and the filter element 201.
[0027] Furthermore, the limiting plate 208 and the mounting plate 206 form a rotating structure through the connecting ring 207. The limiting plate 208 and the fixing box 204 are connected by the spring 210. With the setting of the spring 210, during assembly, when the fixing box 204 is inserted into the connecting box 211, the limiting block 209 slides along the inclined surface of the fixing block 213, and simultaneously squeezes the spring 210 to shrink and deform, providing buffer space for the guiding sliding of the limiting block 209, avoiding hard collisions that cause wear to the parts. When the fixing box 204 is assembled in place, the spring 210 releases the preload instantly, driving the limiting plate 208 to rotate and reset around the connecting ring 207, pushing the limiting block 209 to tightly engage with the rear side of the fixing block 213, forming a reliable axial lock, and preventing the fixing box 204 from loosening under the impact of water flow.
[0028] Furthermore, the limiting blocks 209 are arrayed along the length of the limiting plate 208, and the right end of the fixing block 213 is provided with an inclined surface. By setting the fixing block 213, during the assembly process of the fixing box 204 being inserted into the connecting box 211, the limiting blocks 209 can be guided to slide smoothly along the inclined surface. The axial insertion force of the fixing box 204 is converted into the rotational force of the limiting plate 208 through the inclined surface transmission. The limiting blocks 209 can automatically avoid each other without the user having to perform additional alignment or apply force, which greatly reduces the difficulty of assembly operation.
[0029] Furthermore, an inlet pipe 3 is installed at the upper end of the mounting base 1, and an outlet pipe 4 is installed at the lower end of the mounting base 1. Through the setting of the outlet pipe 4, one end is rigidly fixed and sealed with the pre-set outlet at the lower end of the mounting base 1, and the other end adopts a standardized interface design. It can not only accurately receive the clean water filtered by the filter element 201, providing a stable and smooth discharge channel for the water flow, avoiding water accumulation, bacterial growth or affecting the filtration efficiency due to water flow stagnation, but also prevent leakage of purified water during the discharge process through welding and fixing with the mounting base 1, ensuring water safety and environmental cleanliness.
[0030] Furthermore, a water inlet is provided at the upper end of the mounting base 1, and a first fixing ring 5 is installed at the upper end of the mounting base 1. A connecting rod 6 is installed through both ends of the first fixing ring 5. A second fixing ring 7 is fitted around the outer ring of the connecting rod 6, and a blade 8 is fitted around the outer ring of the second fixing ring 7. Through the setting of the blade 8, the impact force of the water flow introduced into the mounting base 1 by the water inlet pipe 3 can be accurately received, and the kinetic energy of the water flow can be efficiently converted into its own rotational power. It can achieve autonomous operation without the need for an additional motor drive, and has both energy saving and practicality.
[0031] Furthermore, the outer ring of the connecting rod 6 is fitted with a cam 9. The maximum diameter of the cam 9 is greater than the distance between it and the upper end face of the filter element 201. The cam 9 is made of flexible and wear-resistant material. When the blade 8 drives the connecting rod 6 to rotate synchronously, the cam 9 rotates accordingly. During its rotation, it can intermittently and flexibly press against the upper end face of the filter element 201. The flexible material can effectively buffer the impact force during the pressing and avoid damage to the filter material structure of the filter element 201 caused by rigid contact. Through the cyclic action of pressing and releasing, the filter element 201 is driven to generate slight, high-frequency vibration. This vibration can efficiently shake off impurities and suspended matter attached to the surface of the filter material, avoiding the clogging problem caused by the accumulation of pollutants in the pores of the filter material.
[0032] Working principle: In use, first, manually move the filter element 201 along the preset groove on the upper end of the mounting base 1 to the preset limit position inside the mounting base 1 by sliding the slider 203. Then, align the fixing box 204 equipped with the sealing ring 202 with the connecting box 211 and insert it. During the insertion process, the limiting block 209 at the lower end of the limiting plate 208 contacts the inclined surface of the right end of the fixing block 213 and slides along it, simultaneously compressing the spring 210 to shrink and deform. When the fixing box 204 is fully inserted into the connecting box 211, the spring 210 releases its preload and drives the limiting plate 208 to reset around the rotating structure formed by the connecting ring 207 and the fixing rod 205. The limiting block 209 is locked into the rear side of the fixing block 213. At this time, the front end of the sealing ring 202 tightly abuts against the filter element 201, the outer ring and the mounting base 1. The front end is press-fitted to form a seal. Water flows through the inlet pipe 3 into the upper inlet of the mounting base 1. When it flows through the first fixing ring 5, it impacts the blade 8. The blade 8 drives the connecting rod 6 and the cam 9 sleeved on it to rotate synchronously. Because the maximum diameter of the cam 9 is greater than the distance between it and the upper end face of the filter element 201, the rotating cam 9 intermittently and flexibly presses against the upper end face of the filter element 201, causing the filter element 201 to vibrate slightly at high frequency to shake off impurities on the surface of the filter material. The purified water finally flows out through the outlet pipe 4. When it is necessary to disassemble and clean, manually push the limit plate 208 upward to stretch the spring 210, so that the limit block 209 is released from the fixing block 213 and unlocked. Pull out the fixing box 204 to drive the sealing ring 202 to disengage synchronously. Finally, pull the slider 203 in the opposite direction to remove the filter element 201 from the mounting base 1.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A water treatment filter cartridge assembly that is easy to disassemble and clean, comprising a mounting base (1), characterized in that: A filter mechanism (2) is installed at the front end of the mounting base (1); The filtration mechanism (2) includes a filter element (201), a sealing ring (202) is provided at the front end of the filter element (201), a slider (203) is installed at the upper end of the filter element (201), a fixing box (204) is installed at the front end of the sealing ring (202), a fixing rod (205) is connected through both ends of the fixing box (204), an mounting plate (206) is installed on the inner side of the fixing box (204), and the outer ring of the fixing rod (205) is fitted with a mounting plate (206). A connecting ring (207) is provided. A limiting plate (208) is installed at the left end of the connecting ring (207). A limiting block (209) is installed at the lower end of the limiting plate (208). A spring (210) is installed at the upper end of the limiting plate (208). A connecting box (211) is installed at the front end of the mounting base (1). A connecting plate (212) is installed on the inner side of the connecting box (211). A fixing block (213) is installed at the front end of the connecting plate (212).
2. The water treatment filter cartridge assembly that is easy to disassemble and clean according to claim 1, characterized in that: The upper end of the mounting base (1) is provided with a sliding groove, and the mounting base (1) and the slider (203) are slidably connected through the sliding groove.
3. The water treatment filter element assembly that is easy to disassemble and clean according to claim 1, characterized in that: The limiting plate (208) and the mounting plate (206) form a rotating structure through the connecting ring (207), and the limiting plate (208) and the fixing box (204) are connected by the spring (210).
4. A water treatment filter cartridge assembly that is easy to disassemble and clean according to claim 1, characterized in that: The limiting blocks (209) are arranged in an array along the length direction of the limiting plate (208), and the right end of the fixing block (213) is provided with an inclined surface.
5. A water treatment filter cartridge assembly that is easy to disassemble and clean according to claim 1, characterized in that: The upper end of the mounting base (1) is equipped with a water inlet pipe (3), and the lower end of the mounting base (1) is equipped with a water outlet pipe (4).
6. A water treatment filter cartridge assembly that is easy to disassemble and clean according to claim 1, characterized in that: The upper end of the mounting base (1) is provided with a water inlet, and the upper end of the mounting base (1) is provided with a first fixing ring (5). Both ends of the first fixing ring (5) are connected by connecting rods (6). The outer ring of the connecting rod (6) is fitted with a second fixing ring (7), and the outer ring of the second fixing ring (7) is fitted with a blade (8).
7. A water treatment filter cartridge assembly that is easy to disassemble and clean according to claim 6, characterized in that: The outer ring of the connecting rod (6) is fitted with a cam (9), and the maximum diameter of the cam (9) is greater than the distance between it and the upper end face of the filter element (201).
Citation Information
Patent Citations
Energy-saving water treatment device
CN215841880U