Combined type filter element filter convenient to disassemble and assemble
The improved connection device simplifies the disassembly and assembly process of the filter element, solves the problem of complex disassembly in the existing technology, and enables rapid replacement of the filter element and stable operation of the filter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING KUNTE ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-24
AI Technical Summary
The installation and removal process of existing cartridge filters is complex, requiring specialized tools and knowledge, resulting in high costs and low efficiency, and affecting the frequency of filter replacement and system stability.
The connecting device consists of a connecting plate, a fixed cylinder, a sliding rod, a ring, a spring, a fixing block, and a limiting post. Through a sliding and spring reset mechanism, it enables quick replacement of the filter element and easy connection of the filter housing.
It enables convenient installation and removal of filter elements, reduces operational complexity and labor costs, improves replacement efficiency, and ensures the continuous operation of the filter and system stability.
Smart Images

Figure CN224156476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, specifically to a modular filter cartridge that is easy to assemble and disassemble. Background Technology
[0002] In industrial production, processes such as chemical raw material purification and food and beverage production require the use of cartridge filters to remove particulate impurities and microorganisms from fluids to ensure product quality. In domestic water treatment, cartridge filters are used in household drinking water purification and urban water treatment plant filtration processes to intercept sediment, rust, and other impurities, providing people with safe and clean water to meet different usage needs.
[0003] Currently, common filter cartridges on the market have some obvious problems. These problems mainly lie in the installation and disassembly processes. These processes are often quite complex, requiring various sophisticated tools and typically specialized personnel. Such operations are not only time-consuming but also consume a significant amount of human resources, resulting in high time and labor costs. In addition, filter cartridges adsorb a large amount of impurities during long-term use. These impurities gradually accumulate and eventually affect the filter's performance. Therefore, filter cartridges need to be replaced regularly to maintain the normal operation of the filter. However, due to the cumbersome disassembly and assembly process, the replacement efficiency of filter cartridges is greatly affected. This not only reduces work efficiency but may also affect the filter's continuous working capacity, thus negatively impacting the stability and reliability of the entire system and failing to meet current requirements. Utility Model Content
[0004] The purpose of this invention is to provide a modular filter cartridge that is easy to assemble and disassemble, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular filter cartridge that is easy to assemble and disassemble, comprising a support leg, a filter housing, a connecting device, and a filter cartridge. The filter housing is fixedly installed on the top of the support leg, the connecting device is disposed inside the filter housing, and the filter cartridge is disposed inside the connecting device.
[0006] The connecting device comprises a connecting plate, a fixed cylinder, a first sliding rod, a first ring, a first spring, a first fixing block, a second sliding rod, a second ring, a second spring, a second fixing block, a limiting post, and a frame. The connecting plate is slidably installed inside the filter housing. The fixed cylinder is fixedly installed on the side of the connecting plate. The first sliding rod is slidably installed inside the fixed cylinder. The first ring is fixedly installed on the surface of the first sliding rod. The first spring is sleeved on the surface of the first sliding rod. The first fixing block is fixedly installed on the side of the first sliding rod. The second sliding rod is slidably installed inside the connecting plate. The second ring is fixedly installed on the surface of the second sliding rod. The second spring is sleeved on the surface of the second sliding rod. The second fixing block is fixedly installed at one end of the second sliding rod. The limiting post is fixedly installed at the other end of the second sliding rod. The frame is fixedly installed on the side of the connecting plate.
[0007] Preferably, the side of the connecting plate is provided with a sealing element, and the inside of the filter housing is provided with a groove that matches the sealing element. This arrangement can ensure the sealing between the connecting plate and the filter housing.
[0008] Preferably, one end of the first spring abuts against the fixed cylinder, and the other end of the first spring abuts against the first ring, and the first spring is provided for resetting the first ring.
[0009] Preferably, the opposing surfaces of the first fixing block and the second fixing block are both set as inclined surfaces, which allows the first fixing block to slide on the surface of the second fixing block.
[0010] Preferably, one end of the second spring abuts against the connecting plate, and the other end of the second spring abuts against the second ring, and the second spring is provided for resetting the second ring.
[0011] Preferably, the filter housing has a limiting groove inside that matches the limiting post, and the filter housing and the connecting plate can be connected together by the limiting post.
[0012] Preferably, the filter element is inserted into the inside of the frame, and the number of filter elements and the frame are one per group, distributed in a linear array on the side of the connecting plate. Setting multiple groups of this component can improve the purification effect of the filter.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This easy-to-disassemble and assemble modular filter cartridge can be removed by pulling the first slide rod, causing the limiting post to disengage from the limiting groove, and by holding the fixed cylinder and pulling it. The filter cartridge can be replaced. While pulling the first slide rod, the fixed cylinder can be held and the connecting plate can be inserted into the filter housing. Releasing the first slide rod allows the second slide rod to drive the limiting post into the limiting groove, which can connect the filter housing and the connecting plate together. The disassembly and assembly are convenient and quick. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the filter housing structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the limiting post, frame, and filter element structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the connecting plate, fixing cylinder, and second sliding rod structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the first sliding rod, the first ring, and the first spring structure of this utility model.
[0019] In the diagram: 1. Support leg; 2. Filter housing; 3. Connecting device; 301. Connecting plate; 302. Fixing cylinder; 303. First slide rod; 304. First ring; 305. First spring; 306. First fixing block; 307. Second slide rod; 308. Second ring; 309. Second spring; 310. Second fixing block; 311. Limiting post; 312. Frame; 4. Filter element. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-5 This utility model provides a technical solution: a modular filter cartridge that is easy to assemble and disassemble, including a support leg 1, a filter housing 2, a connecting device 3, and a filter cartridge 4. The filter housing 2 is fixedly installed on the top of the support leg 1, the connecting device 3 is disposed inside the filter housing 2, and the filter cartridge 4 is disposed inside the connecting device 3.
[0022] The connecting device 3 consists of a connecting plate 301, a fixing cylinder 302, a first sliding rod 303, a first ring 304, a first spring 305, a first fixing block 306, a second sliding rod 307, a second ring 308, a second spring 309, a second fixing block 310, a limiting post 311, and a frame 312. The connecting plate 301 is slidably installed inside the filter housing 2. A sealing element is provided on the side of the connecting plate 301, and a groove matching the sealing element is opened inside the filter housing 2. This arrangement ensures the sealing between the connecting plate 301 and the filter housing 2. A fixed cylinder 302 is fixedly installed on the side of a connecting plate 301. A first sliding rod 303 is slidably installed inside the fixed cylinder 302. A first ring 304 is fixedly installed on the surface of the first sliding rod 303. A first spring 305 is sleeved on the surface of the first sliding rod 303. One end of the first spring 305 abuts against the fixed cylinder 302, and the other end of the first spring 305 abuts against the first ring 304. The first spring 305 is provided to reset the first ring 304. A first fixing block 306 is fixedly installed on the side of the first sliding rod 303. A second sliding rod 307 is slidably installed... Inside the connecting plate 301, a second ring 308 is fixedly installed on the surface of the second slide rod 307. A second spring 309 is sleeved on the surface of the second slide rod 307. One end of the second spring 309 abuts against the connecting plate 301, and the other end of the second spring 309 abuts against the second ring 308. The second spring 309 is provided to reset the second ring 308. A second fixing block 310 is fixedly installed on one end of the second slide rod 307. The opposing surfaces of the first fixing block 306 and the second fixing block 310 are both set as inclined surfaces. This setting allows the first fixing block 306 to... The filter slides on the surface of the second fixed block 310. The limiting post 311 is fixedly installed on the other end of the second slide rod 307. The filter housing 2 has a limiting groove that matches the limiting post 311. The limiting post 311 can connect the filter housing 2 and the connecting plate 301 together. The frame 312 is fixedly installed on the side of the connecting plate 301. The filter element 4 is inserted into the inside of the frame 312. The number of filter elements 4 and the frame 312 are one per group, and they are distributed in a linear array on the side of the connecting plate 301. Multiple groups of this component can improve the purification effect of the filter.
[0023] In use, pulling the first slide rod 303 moves the first fixing block 306 and compresses the first spring 305. Under the action of the second spring 309, the second ring 308 drives the second slide rod 307 to reset, causing the limiting post 311 to disengage from the limiting groove. By holding the fixing cylinder 302 and pulling it, the frame 312 and filter element 4 can be removed, and the filter element 4 can be replaced. While pulling the first slide rod 303, hold the fixing cylinder 302 and insert the connecting plate 301 into the filter housing 2. Release the first slide rod 303. Under the action of the first spring 305, the first ring 304 drives the first slide rod 303 to reset, allowing the first fixing block 306 to slide on the surface of the second fixing block 310. This causes the second slide rod 307 to drive the limiting post 311 into the limiting groove, connecting the filter housing 2 and the connecting plate 301 together. The assembly and disassembly are convenient and quick.
Claims
1. A modular filter cartridge that is easy to assemble and disassemble, comprising a support leg (1), a filter housing (2), a connecting device (3), and a filter cartridge (4), characterized in that: The filter housing (2) is fixedly installed on the top of the support leg (1), the connecting device (3) is located inside the filter housing (2), and the filter element (4) is located inside the connecting device (3); The connecting device (3) consists of a connecting plate (301), a fixing cylinder (302), a first sliding rod (303), a first ring (304), a first spring (305), a first fixing block (306), a second sliding rod (307), a second ring (308), a second spring (309), a second fixing block (310), a limiting post (311), and a frame (312). The connecting plate (301) is slidably installed inside the filter housing (2), the fixing cylinder (302) is fixedly installed on the side of the connecting plate (301), the first sliding rod (303) is slidably installed inside the fixing cylinder (302), and the first ring (304) is fixedly installed on the first sliding rod (305). On the surface of 03), the first spring (305) is sleeved on the surface of the first slide rod (303), the first fixing block (306) is fixedly installed on the side of the first slide rod (303), the second slide rod (307) is slidably installed inside the connecting plate (301), the second ring (308) is fixedly installed on the surface of the second slide rod (307), the second spring (309) is sleeved on the surface of the second slide rod (307), the second fixing block (310) is fixedly installed on one end of the second slide rod (307), the limiting post (311) is fixedly installed on the other end of the second slide rod (307), and the frame (312) is fixedly installed on the side of the connecting plate (301).
2. The modular filter cartridge filter that is easy to assemble and disassemble according to claim 1, characterized in that: The side of the connecting plate (301) is provided with a sealing element, and the inside of the filter housing (2) is provided with a groove that matches the sealing element.
3. The modular filter cartridge filter that is easy to assemble and disassemble according to claim 1, characterized in that: One end of the first spring (305) abuts against the fixed cylinder (302), and the other end of the first spring (305) abuts against the first ring (304).
4. A modular filter cartridge filter that is easy to assemble and disassemble according to claim 1, characterized in that: The opposite sides of the first fixing block (306) and the second fixing block (310) are both set as inclined surfaces.
5. A modular filter cartridge filter that is easy to assemble and disassemble according to claim 1, characterized in that: One end of the second spring (309) abuts against the connecting plate (301), and the other end of the second spring (309) abuts against the second ring (308).
6. A modular filter cartridge filter that is easy to assemble and disassemble according to claim 1, characterized in that: The filter housing (2) has a limiting groove inside that matches the limiting post (311).
7. A modular filter cartridge filter that is easy to assemble and disassemble according to claim 1, characterized in that: The filter element (4) is inserted into the inside of the frame (312). The number of filter elements (4) and the frame (312) are one per group, and they are distributed in a linear array on the side of the connecting plate (301).