Split type water purifier PP cotton filter element convenient to disassemble and assemble
By using the screw connection between the outer shell and the sealing cover and the linkage structure of the handle buckle, combined with the spring-driven lifting plate design, the PP cotton filter element of the split water purifier can be easily disassembled and efficiently sealed, solving the problems of complicated disassembly and assembly and insufficient sealing of traditional filter elements, thus improving the user experience and filter element life.
Patent Information
- Application Number
- CN202520584447.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The existing split-type water purifier PP cotton filter cartridges are cumbersome to disassemble and assemble, easily damage the sealing structure, and are inconvenient to replace in a confined space, resulting in poor sealing performance.
The filter cartridge is quickly and easily installed and removed with one hand by using a screw-fit connection between the outer shell and the sealing cap, combined with the linkage structure of the handle and the buckle. The spring-driven lifting plate design enables quick one-handed installation and removal of the filter cartridge, and the double sealing design of the retaining ring and the sealing ring ensures airtightness.
It significantly improves the ease of disassembly and assembly of the filter element and the sealing stability, prevents leakage, extends the filter element's life, reduces operational complexity, and enhances the user experience.
Smart Images

Figure CN223945155U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water purifier technical field especially relates to a split type water purifier PP cotton filter core convenient to dismouting. BACKGROUND
[0002] Split type water purifier PP cotton filter core is the core filter assembly in water purification equipment, is mainly used for intercepting suspended solids, silt, rust and other large particle impurities in water. It is made of polypropylene (PP) cotton material, has high porosity and good mechanical strength, and can effectively prolong the service life of subsequent precision filter core. The traditional PP cotton filter core adopts an integrated design, and the filter core is fixedly connected with the shell, so that the filter core needs to be disassembled as a whole when being replaced, which is complicated to operate and easy to cause damage to the sealing structure. With the improvement of user requirements for convenience and maintenance efficiency, split type design has gradually become a trend, but the existing technology still has significant deficiencies.
[0003] The dismounting structure of the existing split type filter core mainly relies on threaded tightening or buckle fixing, and tools are needed during operation, and the sealing may fail due to thread wear or buckle aging after long-term use. In addition, the cooperation between the filter core and the shell lacks a buffering mechanism, and the filter core may be deformed or the sealing ring may be displaced during the installation process due to uneven stress, causing water leakage. In some designs, the layout of the dismounting parts is unreasonable, and users cannot quickly locate the force point, especially when replacing the filter core in a small space. Therefore, there is an urgent need for a split type PP cotton filter core solution with optimized structure, convenient operation and reliable sealing. SUMMARY
[0004] To solve the above problems, the utility model provides a split type water purifier PP cotton filter core convenient to dismouting to more exactly solve the split type filter core dismounting troublesome problem.
[0005] The utility model discloses a split type water purifier PP cotton filter core convenient to dismouting through the following technical scheme realizes:
[0006] The utility model discloses a split type water purifier PP cotton filter core convenient to dismouting, including the shell, the shell top outer wall is screwed with the sealing cover, and the outer wall on sealing cover is provided with the fixed part, the outer wall on the shell is provided with the dismounting part, the shell is internally provided with PP cotton filter core body, and the PP cotton filter core body bottom outer wall is provided with the lifting plate, the lifting plate and shell are fixedly connected with the spring.
[0007] Through the screwing cooperation of the shell and the sealing cover, combined with the linkage structure of the handle and the buckle, the user pulls the handle to release the buckle locking, rotates the sealing cover counterclockwise to separate from the shell, and the PP cotton filter core body pops out under the spring rebound force with the lifting plate, which can be directly replaced. The user can complete the dismounting with one hand without tools, which significantly reduces the operation complexity.
[0008] The double sealing design of the blocking ring and the sealing ring, in cooperation with the spring-driven lifting plate, ensures that the filter core body is always close to the sealing surface, avoids leakage caused by vibration or water pressure fluctuation, and the spring provides a buffering force when the filter core is installed, self-adapts to compensate for the size tolerance between the filter core and the shell, reduces wear caused by hard contact, and prolongs the service life of the filter core.
[0009] Further, the fixing member comprises a threaded connector and an angle code, wherein the threaded connector is circumferentially distributed on the top outer wall of the sealing cover, and the angle code is fixedly connected to the top outer wall of the threaded connector by a screw.
[0010] Further, the dismounting member comprises a first fixing ring and a handle, wherein the first fixing ring is fixedly connected to the outer wall of the shell, and a symmetrically distributed fixing piece is arranged on one side of the outer wall of the first fixing ring, and the handle is hinged between the two fixing pieces.
[0011] Further, the dismounting member further comprises a second fixing ring and a buckle, wherein the second fixing ring is fixedly connected to the outer wall of the shell, and the second fixing ring is located below the first fixing ring, the buckle is arranged on one side of the outer wall of the second fixing ring, and one end of the handle is buckled on the inner wall of the buckle.
[0012] Further, a water inlet connector is fixedly connected to one side of the inner wall of the sealing cover, and a water inlet pipe is fixedly connected to the inner wall of the water inlet connector.
[0013] Further, a water outlet connector is fixedly connected to the other side of the inner wall of the sealing cover, a fixed elbow is fixedly connected to one side of the outer wall of the water outlet connector, and a water outlet pipe is fixedly connected to the other side of the outer wall of the water outlet connector.
[0014] Further, a blocking ring is arranged on the inner wall of the sealing cover, and a sealing ring is bonded to the bottom inner wall of the blocking ring, which is tightly attached to the top outer wall of the PP cotton filter core body.
[0015] Further, anti-slip stripes are arranged on the top of the peripheral outer wall of the shell and the bottom of the peripheral outer wall of the sealing cover.
[0016] The utility model discloses the beneficial effect:
[0017] The utility model discloses through the innovative structure design, has improved the dismounting convenience, the sealing stability and the use reliability of split type PP cotton filter core significantly, and the specific embodiment is as follows:
[0018] Modular dismounting design: through the screwing cooperation of the shell and the sealing cover, in cooperation with the linkage structure of the handle and the buckle, the user pulls the handle to release the buckle locking, counterclockwise rotates the sealing cover to separate the shell, and the PP cotton filter core body pops out under the spring rebound force of the lifting plate, can be directly replaced, and the user can complete the dismounting with one hand without tools, significantly reduces the operation complexity.
[0019] Double sealing design of the blocking ring and the sealing ring, cooperation of the spring driven lifting plate, ensure that the filter core body is always close to the sealing surface, avoid leakage caused by vibration or water pressure fluctuation, and the spring provides a buffer force when the filter core is installed, self-adapting compensation of the size tolerance of the filter core and the shell, reduce the wear caused by hard contact, prolong the service life of the filter core. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is an overall structure schematic view of the utility model;
[0021] Figure 2 It is an internal structure schematic view of the shell and the sealing cover of the utility model;
[0022] Figure 3 It is an enlarged schematic view of the structure of part A of the utility model;
[0023] Figure 4 It is a split structure schematic view of the fixing part of the utility model;
[0024] Figure 5 It is a split structure schematic view of the dismounting part of the utility model.
[0025] The reference signs are as follows:
[0026] In the drawing: 1, shell; 2, sealing cover; 3, fixing part; 31, threaded connector; 32, corner code; 4, dismounting part; 41, first fixing ring; 42, handle; 43, second fixing ring; 44, buckle; 5, PP cotton filter core body; 6, lifting plate; 7, spring; 8, water inlet connector; 9, water inlet pipe; 10, water outlet connector; 11, fixed elbow; 12, water outlet pipe; 13, blocking ring; 14, sealing ring. DETAILED DESCRIPTION
[0027] In order to more clearly and completely illustrate the technical scheme of the utility model, the utility model will be further described below in combination with the drawings.
[0028] Please refer to Figures 1-5 The utility model provides a split type water purifier PP cotton filter core convenient to dismount, including shell 1, the outer wall of shell 1 top is screwed with sealing cover 2, and the outer wall of sealing cover 2 is provided with fixing part 3, the outer wall of shell 1 is provided with dismounting part 4, the inside of shell 1 is provided with PP cotton PP cotton filter core body 5, and the bottom outer wall of PP cotton PP cotton filter core body 5 is provided with lifting plate 6, lifting plate 6 and shell 1 are fixedly connected with spring 7 between them.
[0029] The top of the shell 1 is connected with the sealing cover 2 by screwing. The blocking ring 13 on the inner wall of the sealing cover 2 is pressed against the top of the PP cotton filter core body 5 by the adhesive sealing ring 14, forming the first sealing; the lifting plate 6 at the bottom of the filter core is lifted upward under the action of the spring 7, further ensuring the close contact of the sealing ring 14 with the filter core.
[0030] The fixing member 3 comprises screw joints 31 and angle codes 32, wherein the screw joints 31 are circumferentially distributed on the top outer wall of the sealing cover 2, and the angle codes 32 are fixedly connected to the top outer wall of the screw joints 31 by screws.
[0031] The fixing member 3 is composed of circumferentially distributed screw joints 31 and angle codes 32 fixed by screws. The angle codes 32 can quickly lock the filter core module and the main machine of the water purifier.
[0032] The dismounting member 4 comprises a first fixing ring 41 and a handle 42, wherein the first fixing ring 41 is fixedly connected to the outer wall of the shell 1, and the outer wall of one side of the first fixing ring 41 is provided with symmetrically distributed fixing pieces, and the handle 42 is hingedly connected between the two fixing pieces. The dismounting member 4 further comprises a second fixing ring 43 and a buckle 44, wherein the second fixing ring 43 is fixedly connected to the outer wall of the shell 1, and the second fixing ring 43 is located below the first fixing ring 41, the buckle 44 is provided on the outer wall of one side of the second fixing ring 43, and one end of the handle 42 is buckled to the inner wall of the buckle 44.
[0033] The handle 42 is hingedly connected between the fixing pieces of the first fixing ring 41, and in the normal state, the end of the handle 42 is buckled into the buckle 44 of the second fixing ring 43, forming a closed and locked state. When dismounting, the user pulls the handle 42 outward, and the end thereof is separated from the buckle 44, and at the same time, the handle 42 acts as a lever to pry the sealing cover 2, and the shell 1 and the sealing cover 2 can be easily separated by cooperating with the reverse rotation of the thread.
[0034] In the embodiment, through the screwing cooperation of the shell 1 and the sealing cover 2, combined with the linkage structure of the handle 42 and the buckle 44, the user pulls the handle 42 to release the locking of the buckle 44, rotates the sealing cover 2 counterclockwise to separate the shell 1, and the PP cotton filter core body 5 is ejected under the spring 7 rebound force, which can be directly replaced, and the user can complete the dismounting with one hand without tools, significantly reducing the operation complexity.
[0035] The double sealing design of the blocking ring 13 and the sealing ring 14, combined with the spring 7 driven lifting plate 6, ensures that the PP cotton filter core body 5 is always in close contact with the sealing surface, avoids leakage caused by vibration or water pressure fluctuation, and the spring 7 provides a buffer force when the filter core is installed, self-adaptively compensates for the size tolerance of the filter core and the shell 1, reduces the wear caused by hard contact, and prolongs the service life of the filter core.
[0036] The inner wall of one side of the sealing cover 2 is fixedly connected with a water inlet joint 8, and the inner wall of the water inlet joint 8 is fixedly connected with a water inlet pipe 9.
[0037] The water inlet joint 8 guides raw water into the PP cotton filter core body 5 through the water inlet pipe 9, and after being filtered by the PP cotton, the purified water is guided to the water outlet pipe 12 through the fixed elbow pipe 11 of the water outlet joint 10.
[0038] The inner wall of the sealing cover 2 is provided with a blocking ring 13, and the inner wall of the bottom of the blocking ring 13 is bonded with a sealing ring 14, and the sealing ring 14 is tightly attached to the top outer wall of the PP cotton PP cotton filter core body 5.
[0039] The pre-tightening force of the spring 7 always pushes the PP cotton filter core body 5 upwards, and even if the filter core is slightly deformed due to long-term use, the sealing ring 14 can still be kept in a compressed state through the self-adaptive adjustment of the spring 7, so that the risk of leakage is eliminated.
[0040] The top of the peripheral outer wall of the shell 1 and the bottom of the peripheral outer wall of the sealing cover 2 are both provided with anti-skid stripes.
[0041] Working principle:
[0042] Water inlet and filtration: raw water enters the PP cotton filter core body 5 through the water inlet pipe 9, and the PP cotton PP cotton filter core body 5 intercepts impurities, and the purified water flows upwards through the internal passage of the filter core.
[0043] Sealing and pressure balance: the sealing ring 14 is tightly attached to the bottom of the PP cotton PP cotton filter core body 5 under the action of the spring 7 and the lifting plate 6, forming a dynamic seal; the water flow pressure is uniformly transmitted to the sealing ring 14 through the blocking ring 13, avoiding local stress concentration.
[0044] Disassembly process: when disassembling, the user pulls the handle 42 to release the buckle 44 locking, rotates the sealing cover 2 counterclockwise to separate from the shell 1, and the PP cotton PP cotton filter core body 5 is ejected under the rebounding force of the spring 7, and can be directly replaced; when installing a new filter core, press the filter core to compress the spring 7, and after rotating the sealing cover 2, the handle 42 is automatically buckled into the buckle 44, and the locking is completed.
[0045] Anti-skid and stability: during the operation process, the anti-skid stripes of the shell 1 and the sealing cover 2 provide frictional resistance, which ensures that it is not easy to slip when rotating or disassembling, and improves the operation safety.
[0046] Of course, the utility model also has other various implementation manners, and based on the embodiment, other embodiments obtained by the ordinary skilled in the art without any creative labor all belong to the range protected by the utility model.
Claims
1. A split type water purifier PP cotton filter element convenient to disassemble, characterized in that, Including the shell (1), the shell (1) top outer wall is screwed with the sealing cover (2), and the outer wall of the sealing cover (2) is provided with a fixing part (3), the outer wall of the shell (1) is provided with a dismounting part (4), the inside of the shell (1) is provided with a PP cotton filter core body (5), and the bottom outer wall of the PP cotton filter core body (5) is provided with a lifting plate (6), the lifting plate (6) and the shell (1) are fixedly connected with a spring (7).
2. The detachable PP filter core of the split water purifier according to claim 1, characterized in that, The fixing part (3) comprises a threaded connector (31) and an angle code (32), wherein the threaded connector (31) is circumferentially distributed on the top outer wall of the sealing cover (2), and the angle code (32) is fixedly connected to the top outer wall of the threaded connector (31) by a screw.
3. The detachable PP filter core of the split water purifier according to claim 1, characterized in that, The dismounting part (4) comprises a first fixed ring (41) and a handle (42), wherein the first fixed ring (41) is fixedly connected to the outer wall of the shell (1), and the outer wall of the first fixed ring (41) is provided with symmetrically distributed fixed pieces, and the handle (42) is hinged between the two fixed pieces.
4. The detachable PP filter core of the split water purifier according to claim 1, characterized in that, The dismounting part (4) further comprises a second fixed ring (43) and a buckle (44), wherein the second fixed ring (43) is fixedly connected to the outer wall of the shell (1), and the second fixed ring (43) is located below the first fixed ring (41), the buckle (44) is arranged on the outer wall of the second fixed ring (43), and one end of the handle (42) is buckled on the inner wall of the buckle (44).
5. The detachable PP filter core of split water purifier according to claim 1, wherein, The inner wall of one side of the sealing cover (2) is fixedly connected with a water inlet connector (8), and the inner wall of the water inlet connector (8) is fixedly connected with a water inlet pipe (9).
6. The detachable PP filter core of split water purifier according to claim 1, characterized in that, The inner wall of the other side of the sealing cover (2) is fixedly connected with a water outlet connector (10), and the outer wall of one side of the water outlet connector (10) is fixedly connected with a fixed elbow (11), and the outer wall of the other side of the water outlet connector (10) is fixedly connected with a water outlet pipe (12).
7. The detachable PP filter core of split water purifier according to claim 1, characterized in that, The inner wall of the sealing cover (2) is provided with a stop ring (13), and the bottom inner wall of the stop ring (13) is bonded with a sealing ring (14), and the sealing ring (14) is tightly attached to the top outer wall of the PP cotton filter core body (5).
8. The detachable PP filter core of the split water purifier according to claim 1, characterized in that, The top of the peripheral outer wall of the shell (1) and the bottom of the peripheral outer wall of the sealing cover (2) are provided with anti-skid stripes.