Composite filter element of faucet water purifier
By setting up a dual filtration structure of activated carbon and ultrafiltration membrane in the faucet water purifier, the existing filter element is solved and the problem of blockage and short service life when treating impurities and water sources is short, achieving efficient removal of impurities and reducing costs.
Patent Information
- Application Number
- CN202420962151.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-07
AI Technical Summary
When the existing faucet water purifier filter element treats water sources with many impurities, large impurity particles can easily clog the ultrafiltration membrane, resulting in a short service life and an increased cost of use.
Design a composite filter element of faucet water purifier. By setting a first flow channel between the shell and the inner cylinder and setting a second flow channel in the inner cylinder, the raw water is initially filtered with activated carbon, and then secondary filtered by the ultrafiltration membrane. , remove large particles such as sediment, algae, bacteria, residual chlorine and other impurities, and extend the service life of the ultrafiltration membrane.
Effectively remove impurities in water, extend the service life of ultrafiltration membrane, reduce the cost of use, and ensure the quality of water purification.
Smart Images
Figure CN222204880U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water purification equipment, in particular to a composite filter element for a tap water purifier. Background Art
[0002] With the continuous improvement of living standards, people have higher and higher requirements for the quality of drinking water. Although tap water has undergone a series of purification treatments in the water plant, there are still a small amount of particulate impurities, plankton, hypochlorous acid and other substances remaining in the water. As a household drinking water filtration device, the faucet water purifier can filter out particulate impurities, plankton, odors, etc. in the water through its built-in filter element, thereby improving the water quality and taste. Therefore, it is favored by more and more people.
[0003] The filter element of the faucet water purifier usually includes an outer shell and a filter core disposed in the outer shell. The filter core is usually made of microporous ceramics, activated carbon, ultrafiltration membrane and other materials, among which the ultrafiltration membrane has the most ideal filtering effect. However, when this filter core is used to process water sources with more impurities, some large impurity particles are easy to block the ultrafiltration membrane tube wall, resulting in a shorter service life of the ultrafiltration membrane core and increased use costs. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned prior art and provide a composite filter element for a tap water purifier with good filtering effect and low use cost.
[0005] The technical solution of the utility model is to provide a composite filter element for a tap water purifier having the following structure:
[0006] It comprises an outer shell with an inner cavity and an inner cylinder with a gap arranged in the inner cavity of the outer shell; a first flow channel is formed between the outer shell and the inner cylinder, and a second flow channel is formed in the inner cylinder; a raw water inlet is arranged at one end of the first flow channel, and the other end is connected with the second flow channel; a purified water outlet is arranged at the end of the second flow channel facing the same direction as the raw water inlet; the first flow channel is filled with activated carbon for preliminary filtering of the raw water entering from the raw water inlet, and the second flow channel is filled with an ultrafiltration membrane for secondary filtering of the water after preliminary filtration.
[0007] After adopting the above structure, the composite filter element of the tap water purifier in the utility model has the following advantages compared with the prior art:
[0008] A first flow channel is set between the outer shell and the inner cylinder, and a second flow channel is set in the inner cylinder. When the raw water passes through the first flow channel, it will be initially filtered by the activated carbon to remove larger particles of impurities such as mud, algae, etc. in the raw water. When the raw water after the initial filtration passes through the second flow channel, it is secondary filtered by the ultrafiltration membrane to remove impurities such as bacteria and residual chlorine, which not only ensures the quality of the purified water, but also extends the service life of the ultrafiltration membrane, thereby saving the use cost.
[0009] Preferably, the two ends of the inner tube are respectively sleeved with a first fixing clamp ring and a second fixing clamp ring, and the outer peripheral walls of the first fixing clamp ring and the second fixing clamp ring are fitted with the inner peripheral wall of the outer shell, so as to fix the inner tube in the inner cavity of the outer shell and make the inner tube and the inner wall of the outer shell to match each other. The first fixing clamp ring and the second fixing clamp ring have a limiting function, so that the first flow channel is formed between the outer peripheral wall of the inner tube and the inner peripheral wall of the outer shell, and the top of the inner tube and the inner top wall of the outer shell are also matched, so as to ensure that the first flow channel is connected with the second flow channel.
[0010] Preferably, the first fixed clamp ring is provided with a plurality of first filter holes distributed in an annular manner and penetrating the upper and lower end surfaces of the first fixed clamp ring, the second fixed clamp ring is provided with a plurality of second filter holes distributed in an annular manner and penetrating the upper and lower end surfaces of the second fixed clamp ring, and the first filter holes and the second filter holes are both connected with a filter screen for raw water to pass through; the activated carbon is arranged in the first flow channel between the first fixed clamp ring and the second fixed clamp ring, and the outer diameter of the activated carbon is larger than the inner diameter of the mesh of the filter screen. The first fixed clamp ring and the second fixed clamp ring can confine the activated carbon in the first flow channel, and the filter screens on the first filter holes and the second filter holes do not affect the passage of water.
[0011] Preferably, a concave connecting groove is provided in the middle of the first fixed clamp, and the end of the inner cylinder close to the clean water outlet is connected to the connecting groove; a clean water outlet hole extending downward is provided on the inner bottom wall of the connecting groove, and the clean water outlet hole is connected to the clean water outlet.
[0012] Preferably, an opening is provided at the bottom of the shell, and a pressure cover is connected to the opening.
[0013] Preferably, a through hole extending downward is provided in the middle of the gland, the through hole is connected to the raw water inlet, and the clean water outlet extends into the through hole.
[0014] Preferably, a clamping portion is provided on the outer peripheral wall of the lower end of the gland, and the clamping portion is used for clamping the faucet water purifier.
[0015] Preferably, a first limiting convex ring and a second limiting convex ring are provided on the outer peripheral wall of the inner cylinder, and the upper and lower end faces of the first fixing clamp ring are respectively abutted against the first limiting convex ring and the pressure cover; a third limiting convex ring is provided on the inner top wall of the outer shell, and the upper and lower end faces of the second fixing clamp ring are respectively abutted against the third limiting convex ring and the second limiting convex ring.
[0016] Preferably, the upper end surface of the first fixed clamp ring is provided with filter cotton, and a plurality of support columns are provided between the first fixed clamp ring and the filter cotton to set a gap between the filter cotton and the upper end surface of the first fixed clamp ring. The filter cotton can filter the raw water entering the first flow channel once, and can also prevent the activated carbon in the first flow channel from leaking out during the transportation of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model.
[0018] Figure 2 It is a half-section view of the utility model.
[0019] Figure 3 It is an exploded view of the utility model.
[0020] Figure 4 It is a structural schematic diagram of the first fixed clamping ring in the utility model.
[0021] Figure 5 It is a structural schematic diagram of the pressure cover in the utility model.
[0022] Description of reference numerals:
[0023] 1. Outer shell, 11. Third limiting convex ring, 12. Support block, 2. Inner cylinder, 21. First limiting convex ring, 22. Second limiting convex ring, 3. First flow channel, 4. Second flow channel, 5. Raw water inlet, 6. Clean water outlet, 7. First fixing clamp, 71. First filter hole, 72. Connecting groove, 73. Clean water outlet, 74. Support column, 75. Filter cotton, 8. Second fixing clamp, 81. Second filter hole, 9. Pressure cover, 91. Through hole, 92. Clamping part. DETAILED DESCRIPTION
[0024] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. At the same time, the terms "first", "second" and the like are only used to distinguish the names of the components, and have no primary or secondary relationship, and therefore cannot be understood as a limitation on the present invention.
[0026] like Figure 1 , Figure 2 , Figure 3, Figure 4 and Figure 5 As shown;
[0027] The utility model discloses a composite filter element for a tap water purifier, comprising an outer shell 1 with an inner cavity and an inner cylinder 2 with a gap arranged in the inner cavity of the outer shell 1. An opening is arranged at the bottom of the outer shell 1, and a pressure cover 9 is connected to the opening.
[0028] A first flow channel 3 is formed between the outer shell 1 and the inner cylinder 2, and a second flow channel 4 is formed in the inner cylinder 2; a raw water inlet 5 is provided at the lower end of the first flow channel 3, and the upper end of the first flow channel 3 is connected with the upper end of the second flow channel 4; a clean water outlet 6 is provided at the lower end of the second flow channel 4, and the clean water outlet 6 has the same direction as the raw water inlet 5; the first flow channel 3 is filled with activated carbon for preliminary filtering of the raw water entering from the raw water inlet 5, and the second flow channel 4 is filled with an ultrafiltration membrane for secondary filtering of the water after preliminary filtration.
[0029] A first flow channel 3 is arranged between the outer shell 1 and the inner cylinder 2, and a second flow channel 4 is arranged in the inner cylinder 2. When the raw water passes through the first flow channel 3, it will be initially filtered by the activated carbon to remove larger particles of impurities such as mud, algae, etc. in the raw water. When the raw water after the initial filtration passes through the second flow channel 4, it will be secondary filtered by the ultrafiltration membrane to remove impurities such as bacteria and residual chlorine, which not only ensures the quality of the purified water, but also prolongs the service life of the ultrafiltration membrane, thereby saving the use cost.
[0030] The two ends of the inner tube 2 are respectively sleeved with a first fixing clamp ring 7 and a second fixing clamp ring 8, and the outer peripheral walls of the first fixing clamp ring 7 and the second fixing clamp ring 8 are in contact with the inner peripheral wall of the outer shell 1, so as to fix the inner tube 2 in the inner cavity of the outer shell (1) and make the inner tube 2 and the inner wall of the outer shell 1 fit in the gap.
[0031] The first fixing clamp ring 7 and the second fixing clamp ring 8 have a limiting function, so that the first flow channel 3 is formed between the outer circumferential wall of the inner tube 2 and the inner circumferential wall of the outer shell 1, and at the same time, the top of the inner tube 2 and the inner top wall of the outer shell 1 are gap-matched, thereby ensuring that the first flow channel 3 is connected to the second flow channel 4.
[0032] The first fixed clamp ring 7 is provided with a plurality of first filter holes 71 distributed in an annular manner and penetrating the upper and lower end surfaces of the first fixed clamp ring 7, and the second fixed clamp ring 8 is provided with a plurality of second filter holes 81 distributed in an annular manner and penetrating the upper and lower end surfaces of the second fixed clamp ring 8. A filter screen for raw water to pass through is connected to the first filter holes 71 and the second filter holes 81. Activated carbon is arranged in the first flow channel 3 between the first fixed clamp ring 7 and the second fixed clamp ring 8, and the outer diameter of the activated carbon is larger than the inner diameter of the mesh of the filter screen.
[0033] The first fixing clamp ring 7 and the second fixing clamp ring 8 can confine the activated carbon in the first flow channel 3 , and the filter meshes on the first filter holes 71 and the second filter holes 81 do not affect the passage of water.
[0034] An inwardly concave connecting groove 72 is provided in the middle of the first fixed clamp 7, and one end of the inner tube 2 close to the clean water outlet 6 is connected to the connecting groove 72; a downwardly extending clean water outlet hole 73 is provided on the inner bottom wall of the connecting groove 72, and the clean water outlet hole 73 is connected to the clean water outlet 6.
[0035] The upper end surface of the first fixed clamp ring 7 is provided with filter cotton 75, and six support columns 74 are provided between the first fixed clamp ring 7 and the filter cotton 75, which are used to support the filter cotton 75 so that a gap is set between the filter cotton 75 and the upper end surface of the first fixed clamp ring 7. The filter cotton 75 can filter the raw water entering the first flow channel 3 once, and can also prevent the activated carbon in the first flow channel 3 from leaking out during the transportation of the filter element.
[0036] A through hole 91 extending downward is provided in the middle of the gland 9, which is connected to the raw water inlet 5, and the purified water outlet 73 extends into the through hole 91. A clamping portion 92 is provided on the outer peripheral wall of the lower end of the gland 9, and the clamping portion 92 is used for clamping the faucet water purifier.
[0037] The outer peripheral wall of the inner cylinder 2 is also provided with a first limiting convex ring 21 and a second limiting convex ring 22, and the upper and lower end faces of the first fixed clamp ring 7 are respectively against the first limiting convex ring 21 and the pressure cover 9; the inner top wall of the outer shell 1 is provided with a third limiting convex ring 11, and the upper and lower end faces of the second fixed clamp ring 8 are respectively against the third limiting convex ring 11 and the second limiting convex ring 22, so that after the composite filter element is assembled, the inner cylinder 2 will be firmly fixed in the outer shell 1 to avoid shaking or displacement. Four support blocks 12 are provided near the middle of the inner top wall of the outer shell 1, and the support blocks 12 are against the top of the inner cylinder 2, so that the top of the inner cylinder 2 can maintain a gap with the inner top wall of the outer shell 1.
[0038] The above description is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A composite filter element for a tap water purifier, Features: The invention comprises an outer shell (1) having an inner cavity and an inner cylinder (2) with a gap arranged in the inner cavity of the outer shell (1); a first flow channel (3) is formed between the outer shell (1) and the inner cylinder (2), and a second flow channel (4) is formed in the inner cylinder (2); a raw water inlet (5) is provided at one end of the first flow channel (3), and the other end is connected to the second flow channel (4); a purified water outlet (6) is provided at one end of the second flow channel (4) facing the same direction as the raw water inlet (5); the first flow channel (3) is filled with activated carbon for preliminary filtering of raw water entering from the raw water inlet (5), and the second flow channel (4) is filled with an ultrafiltration membrane for secondary filtering of the water after preliminary filtering.
2. The composite filter element for the tap water purifier according to claim 1, Features: A first fixing clamp ring (7) and a second fixing clamp ring (8) are respectively sleeved on both ends of the inner cylinder (2); the outer peripheral walls of the first fixing clamp ring (7) and the second fixing clamp ring (8) are in contact with the inner peripheral wall of the outer shell (1), so as to fix the inner cylinder (2) in the inner cavity of the outer shell (1) and to make the inner cylinder (2) and the inner wall of the outer shell (1) match each other in clearance.
3. The composite filter element for the tap water purifier according to claim 2, Features: The first fixed clamp ring (7) is provided with a plurality of first filter holes (71) distributed in an annular shape and penetrating the upper and lower end surfaces of the first fixed clamp ring (7); the second fixed clamp ring (8) is provided with a plurality of second filter holes (81) distributed in an annular shape and penetrating the upper and lower end surfaces of the second fixed clamp ring (8); the first filter holes (71) and the second filter holes (81) are both connected to a filter screen for raw water to pass through; the activated carbon is arranged in the first flow channel (3) between the first fixed clamp ring (7) and the second fixed clamp ring (8), and the outer diameter of the activated carbon is greater than the inner diameter of the mesh of the filter screen.
4. The composite filter element for a tap water purifier according to claim 3, Features: A concave connecting groove (72) is provided in the middle of the first fixed clamp ring (7), and one end of the inner cylinder (2) close to the clean water outlet (6) is connected to the connecting groove (72); a clean water outlet hole (73) extending downward is provided on the inner bottom wall of the connecting groove (72), and the clean water outlet hole (73) is connected to the clean water outlet (6).
5. The composite filter element for a tap water purifier according to claim 4, Features: The bottom of the housing (1) is provided with an opening, and a pressure cover (9) is connected to the opening.
6. The composite filter element for a tap water purifier according to claim 5, Features: A through hole (91) extending downward is provided in the middle of the gland (9), the through hole (91) is connected to the raw water inlet (5), and the purified water outlet (73) extends into the through hole (91).
7. The composite filter element for a tap water purifier according to claim 6, Features: A clamping portion (92) is provided on the outer peripheral wall of the lower end of the pressure cover (9), and the clamping portion (92) is used for clamping the faucet water purifier.
8. The composite filter element for a tap water purifier according to claim 5 or 7, Features: A first limiting convex ring (21) and a second limiting convex ring (22) are provided on the outer peripheral wall of the inner cylinder (2), and the upper and lower end surfaces of the first fixing clamp ring (7) are respectively abutted against the first limiting convex ring (21) and the pressure cover (9); a third limiting convex ring (11) is provided on the inner top wall of the outer shell (1), and the upper and lower end surfaces of the second fixing clamp ring (8) are respectively abutted against the third limiting convex ring (11) and the second limiting convex ring (22).
9. The composite filter element for a tap water purifier according to claim 4, Features: The upper end surface of the first fixed clamp ring (7) is provided with filter cotton (75), and a plurality of support columns (74) are provided between the first fixed clamp ring (7) and the filter cotton (75) for setting a gap between the filter cotton (75) and the upper end surface of the first fixed clamp ring (7).