Polypropylene filter element
By introducing structures such as cover plates, grooves, annular plates, and springs into the polypropylene filter element, the filter element is limited and sealed, solving the problem of filter element movement within the sleeve and improving the filter element's service life and sealing effect.
Patent Information
- Application Number
- CN202520382656.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-06
AI Technical Summary
In the use of existing polypropylene filter cartridges, there is a gap between the outer surface of the filter cartridge and the inner wall of the sleeve after the filter cartridge is placed inside the sleeve. This causes the filter cartridge to move during the filtration process due to vibration or pressure changes, which affects the life of the filter cartridge.
The sleeve employs a structure including a cover plate, groove, annular plate, connecting rod, and spring. Through threaded connection and spring pressure, the upper and lower ends of the filter element are limited. Combined with the design of the sealing ring, this prevents the filter element from moving and achieves a seal.
It effectively prevents the filter element from shifting, extends the filter element's lifespan, avoids water leakage, and enhances the sleeve's sealing performance.
Smart Images
Figure CN223879489U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to filter core technical field, concretely is a kind of polypropylene filter core. BACKGROUND
[0002] Polypropylene filter core is the white tubular filter core that polypropylene particle is made into microfiber by melting, spraying and closely winding, polypropylene filter core replaces traditional filter core, and it is new generation filter element filter core that polypropylene particle is made into microfiber by melting, spraying and closely winding white tubular filter core, non-toxic, fiber does not fall off when filtering, and also maintains good air permeability.
[0003] However, the existing polypropylene filter core has a gap between the outer surface of the filter core and the inner wall of the sleeve after the filter core is placed in the sleeve, which is not convenient for limiting the filter core during filtering of water source, and the position of the filter core moves due to vibration or pressure change during filtering, affecting the service life of the filter core. To solve the above problems, the inventor proposes a polypropylene filter core to solve the above problems. UTILITY MODEL CONTENT
[0004] To solve the problem of polypropylene filter core in use process, it is not convenient to limit the filter core, resulting in the position of the filter core moving; the purpose of the present utility model is to provide a polypropylene filter core.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a polypropylene filter core, comprising a sleeve, a filter core body is arranged in the sleeve, a cover plate is threadedly arranged on the outer surface of the sleeve, a groove is formed in the cover plate, a fixing ring is fixedly arranged in the groove, an annular plate is slidably arranged in the groove, a connecting rod is fixedly arranged on the bottom surface of the annular plate, a compression ring is fixedly arranged on the bottom end of the connecting rod, the compression ring is attached to the top surface of the filter core body, a limiting rod is fixedly arranged on the top end of the annular plate, the limiting rod is slidably inserted into the cover plate, a spring is fixedly connected between the groove and the annular plate, a first sealing ring is fixedly arranged on the outer surface of the annular plate, a second sealing ring is fixedly arranged in the annular plate, the first sealing ring and the second sealing ring are slidably attached to the groove. First, the filter core body is placed in the sleeve, and it is attached to the top surface of the cushion block, then the cover plate is rotated on the outer surface of the sleeve, the threaded groove is screwed on the outer surface of the first threaded part, the compression ring is attached to the top surface of the filter core body, and the connecting rod drives the annular plate to slide in the groove and compresses the spring, thereby limiting the upper and lower ends of the filter core body under the pressure of the spring, preventing the position of the filter core body from shifting, improving the service life of the filter core body, and tightly attaching the sealing gasket between the inner wall of the cover plate and the top of the sleeve, thereby sealing the sleeve and preventing water leakage. The first sealing ring and the second sealing ring are arranged to prevent water from leaking into the groove.
[0006] Preferably, a threaded groove is formed in the cover plate, a sealing gasket is placed in the threaded groove, the sealing gasket is attached to the top surface of the sleeve, the outer surface of the sleeve is provided with a first threaded portion, and the threaded groove is threadedly sleeved on the outer surface of the first threaded portion.
[0007] Preferably, a pad is fixedly arranged in the sleeve, an inclined block is fixedly arranged on the top surface of the pad, the bottom end of the filter core body is attached to the top surface of the pad, the outer surface of the sleeve is fixedly provided with a positioning plate, a through groove is formed in the cover plate, a connecting pipe is fixedly arranged on the top surface of the cover plate, the connecting pipe and the through groove are mutually penetrated, and the outer surface of the connecting pipe is provided with a second threaded portion.
[0008] Preferably, the filter core body comprises composite activated carbon, a first support layer is fixedly arranged in the composite activated carbon, a filter membrane layer is fixedly arranged in the first support layer, and a second support layer is fixedly arranged in the filter membrane layer.
[0009] Compared with the prior art, the filter core body has the advantages that:
[0010] 1. In the utility model, the cover plate is rotated on the outer surface of the sleeve, the compression ring is attached to the top surface of the filter core body, the connecting rod drives the annular plate to slide in the groove, and the spring is pressed, so that the upper and lower ends of the filter core body are limited under the pressure of the spring, the position of the filter core body is prevented from being displaced, and the service life of the filter core body is improved.
[0011] 2. In the utility model, the first support layer and the second support layer are composed of non-woven fabric, so as to support the inner and outer sides of the filter membrane layer and prevent the filter membrane layer from being collapsed in the filtering process. ACCURATE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained by those skilled in the art without creative labor.
[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0014] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the sleeve of the present utility model;
[0015] Figure 3 It is a schematic diagram of the structure of the filter core body of the present utility model;
[0016] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the cover plate of the present utility model;
[0017] Figure 5 The annular plate structure schematic view of the utility model is shown in the figure.
[0018] In the figure: 1, sleeve; 11, first threaded part; 12, positioning plate; 13, cushion block; 14, inclined block; 2, filter core body; 21, composite activated carbon; 22, first support layer; 23, filter membrane layer; 24, second support layer; 3, cover plate; 301, groove; 302, threaded groove; 303, through groove; 31, sealing gasket; 32, annular plate; 33, first sealing ring; 34, second sealing ring; 35, fixing ring; 36, pressing ring; 37, connecting rod; 38, limiting rod; 39, spring; 4, connecting pipe; 41, second threaded part. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0020] Embodiment: as Figures 1-5The utility model provides a kind of polypropylene filter element, sleeve 1 is equipped with filter element body 2 in sleeve 1, the outer surface of sleeve 1 is equipped with cover plate 3, and water inlet structure and water outlet structure are connected by the connecting pipe 4 on cover plate 3, water is made into connecting pipe 4 by water inlet structure, then it is made into sleeve 1, then it is made into composite activated carbon 21, and then the harmful substances such as peculiar smell, residual chlorine, heavy metal in water can be removed, then filter membrane layer 23 is filtered to water, then water can be discharged from water outlet structure, recess 301 is opened in cover plate 3, fixed ring 35 is fixedly arranged in recess 301, annular plate 32 is slidably arranged in recess 301, the bottom surface of annular plate 32 is fixedly provided with connecting rod 37, the bottom end of connecting rod 37 is fixedly provided with compression ring 36, and compression ring 36 is attached to the top surface of filter element body 2, the top end of annular plate 32 is fixedly provided with limiting rod 38, limiting rod 38 is slidably inserted into cover plate 3, spring 39 is fixedly connected between recess 301 and annular plate 32, the outer surface of annular plate 32 is fixedly provided with first sealing ring 33, second sealing ring 34 is fixedly arranged in annular plate 32, first sealing ring 33 and second sealing ring 34 are slidably attached in recess 301, threaded groove 302 is opened in cover plate 3, and sealing gasket 31 is placed in threaded groove 302, and sealing gasket 31 is attached to the top surface of sleeve 1, the outer surface of sleeve 1 is provided with first threaded part 11, threaded groove 302 is threadedly arranged on the outer surface of first threaded part 11, filter element body 2 is placed into sleeve 1, then cover plate 3 is rotated on the outer surface of sleeve 1, so that threaded groove 302 is threadedly arranged on the outer surface of first threaded part 11, so that compression ring 36 is attached to the top surface of filter element body 2, and connecting rod 37 drives annular plate 32 to slide in recess 301, and extrudes spring 39, so that the upper and lower ends of filter element body 2 are limited under the pressure action of spring 39, to avoid the position displacement of filter element body 2, improve the service life of filter element body 2, sealing gasket 31 is tightly attached between the inner wall of cover plate 3 and the top of sleeve 1, so that sleeve 1 can be sealed, to avoid water leakage, and first sealing ring 33 and second sealing ring 34 are arranged, to avoid water leakage into recess 301.
[0021] Sleeve 1 is fixedly provided with pad 13, and the top surface of pad 13 is fixedly provided with inclined block 14, the bottom end of filter element body 2 is attached to the top surface of pad 13, the outer surface of sleeve 1 is fixedly provided with positioning plate 12, through groove 303 is opened in cover plate 3, the top surface of cover plate 3 is fixedly provided with connecting pipe 4, connecting pipe 4 and through groove 303 are mutually penetrated, and the outer surface of connecting pipe 4 is provided with second threaded part 41.
[0022] By adopting the above technical scheme, the bottom of filter element body 2 can be limited by the arrangement of pad 13 and inclined block 14, so that it can be in the middle of sleeve 1.
[0023] The filter core body 2 comprises composite activated carbon 21, the first support layer 22 is fixedly arranged in the composite activated carbon 21, the filter membrane layer 23 is fixedly arranged in the first support layer 22, and the second support layer 24 is fixedly arranged in the filter membrane layer 23.
[0024] By adopting the above technical scheme, the composite activated carbon 21 can remove harmful substances such as peculiar smell, residual chlorine and heavy metals in water, the filter membrane layer 23 is a polypropylene filter core made of superfine polypropylene fibers, these fibers form a three-dimensional microporous structure through hot melting entanglement, so that the water can be filtered, the first support layer 22 and the second support layer 24 are composed of non-woven fabrics, so as to support the inner and outer sides of the filter membrane layer 23, and prevent the filter membrane layer 23 from being collapsed in the filtering process.
[0025] Working principle: first, the filter core body 2 is placed in the sleeve 1 and adheres to the top surface of the pad 13, then the cover plate 3 is rotated on the outer surface of the sleeve 1, the threaded groove 302 is screwed on the outer surface of the first threaded part 11, the compression ring 36 is adhered to the top surface of the filter core body 2, the connecting rod 37 drives the annular plate 32 to slide in the groove 301, and the spring 39 is extruded, so that the filter core body 2 is limited at the upper and lower ends under the pressure of the spring 39, the position of the filter core body 2 is prevented from being displaced, the service life of the filter core body 2 is improved, the sealing gasket 31 is tightly adhered between the inner wall of the cover plate 3 and the top of the sleeve 1, so that the sleeve 1 can be sealed to avoid water leakage, and the first sealing ring 33 and the second sealing ring 34 are arranged to prevent water from leaking into the groove 301.
[0026] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.
Claims
1. A polypropylene filter cartridge comprising a sleeve (1), characterized in that: The sleeve (1) is provided with a filter core body (2), the outer surface of the sleeve (1) is threadedly provided with a cover plate (3), the cover plate (3) is provided with a groove (301), the groove (301) is fixedly provided with a fixed ring (35), the groove (301) is slidably provided with an annular plate (32), the bottom surface of the annular plate (32) is fixedly provided with a connecting rod (37), the bottom end of the connecting rod (37) is fixedly provided with a compression ring (36), the compression ring (36) is attached to the top surface of the filter core body (2), the top end of the annular plate (32) is fixedly provided with a limiting rod (38), the limiting rod (38) is slidably inserted into the cover plate (3), and the spring (39) is fixedly connected between the groove (301) and the annular plate (32).
2. A polypropylene filter element as claimed in claim 1, characterized in that The outer surface of the annular plate (32) is fixedly provided with a first sealing ring (33), the annular plate (32) is fixedly provided with a second sealing ring (34), and the first sealing ring (33) and the second sealing ring (34) are slidably attached in the groove (301).
3. A polypropylene filter element as defined in claim 1, wherein, The cover plate (3) is provided with a threaded groove (302), the threaded groove (302) is placed with a sealing gasket (31), and the sealing gasket (31) is attached to the top surface of the sleeve (1).
4. A polypropylene filter element as claimed in claim 3, characterised in that The outer surface of the sleeve (1) is provided with a first threaded portion (11), and the threaded groove (302) is threadedly provided on the outer surface of the first threaded portion (11).
5. A polypropylene filter element as defined in claim 1, wherein, The sleeve (1) is fixedly provided with a pad (13), the top surface of the pad (13) is fixedly provided with an inclined block (14), and the bottom end of the filter core body (2) is attached to the top surface of the pad (13).
6. A polypropylene filter element as defined in claim 1, wherein, The outer surface of the sleeve (1) is fixedly provided with a positioning plate (12).
7. A polypropylene filter element as defined in claim 1, wherein, The cover plate (3) is provided with a through groove (303), the top surface of the cover plate (3) is fixedly provided with a connecting pipe (4), the connecting pipe (4) and the through groove (303) are mutually penetrated, and the outer surface of the connecting pipe (4) is provided with a second threaded portion (41).
8. A polypropylene filter element as defined in claim 1, wherein, The filter core body (2) comprises a composite activated carbon (21), the composite activated carbon (21) is fixedly provided with a first support layer (22), the first support layer (22) is fixedly provided with a filter membrane layer (23), and the filter membrane layer (23) is fixedly provided with a second support layer (24).