Water purifying device

Abstract

The utility model provides a water purifying device, which belongs to the technical field of water purifying equipment and comprises a shell component and a filter element component, the shell component is provided with a water inlet and a water outlet, and a mounting cavity is arranged in the shell component; the filter element assembly is arranged in the mounting cavity and comprises a first-stage PP cotton filter layer, a second-stage KDF filter layer and a third-stage PET filter layer which are sequentially arranged in the water flow direction. According to the water purifying device provided by the utility model, through three-stage filtration in the filter element assembly, the problem that the purifying effect is relatively single is solved, when raw water enters the filter element assembly through the water inlet, the raw water firstly passes through the first-stage PP cotton filter layer, and the first-stage PP cotton filter layer can effectively filter impurities in the water, so that the water is clearer and more transparent; the water enters the first-stage KDF filter layer and the second-stage PET filter layer, also has certain antibacterial ability, then enters the second-stage KDF filter layer to remove residual chlorine and heavy metal ions in water, and then passes through the third-stage PET filter layer to effectively intercept impurities and pollutants with smaller particle sizes in water, so that final purified water is obtained after filtration.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, and particularly relates to a water purification device. Background Art

[0002] With the improvement of living quality, people's attention to health has been continuously improved, and the requirements for water purification are also getting higher and higher.

[0003] The existing water purification filter element structure generally uses a PP cotton filter element, which can filter out large particles and suspended matters in water, but cannot remove residual chlorine and heavy metal ions in water, and the water purification effect is relatively single. Summary of the Utility Model

[0004] Therefore, the utility model aims to solve the defect that the existing water purification filter element structure cannot remove residual chlorine and heavy metal ions in water and the water purification effect is relatively single, and thus provides a water purification device.

[0005] In order to solve the above technical problems, the utility model provides a water purification device, including:

[0006] A housing assembly, provided with a water inlet and a water outlet, and an installation cavity is arranged inside the housing assembly;

[0007] A filter element assembly, arranged in the installation cavity, and the filter element assembly includes a first-stage PP cotton filter layer, a second-stage KDF filter layer and a third-stage PET filter layer arranged in sequence along the water flow direction.

[0008] Optionally, a stainless steel filter screen member is arranged between the filter element assembly and the water inlet.

[0009] Optionally, the first-stage PP cotton filter layer is a cylindrical filter element, the second-stage KDF filter layer is arranged inside the first-stage PP cotton filter layer, and the third-stage PET filter layer is arranged at the end of the second-stage KDF filter layer.

[0010] Optionally, the second-stage KDF filter layer includes a support body and a filter material arranged inside the support body.

[0011] Optionally, the support body is non-woven fabric or silicone cloth.

[0012] Optionally, a water storage flow channel is formed between the filter element assembly and the installation cavity, and the water storage flow channel is communicated with the water inlet.

[0013] Optionally, the filter element assembly is coaxially arranged with the installation cavity, and the water storage flow channel is of an annular structure.

[0014] Optionally, a water distribution plate is provided at the end of the water storage flow channel. A plurality of water equalizing holes communicating with the water storage flow channel are uniformly arranged on the water distribution plate, and the water storage flow channel communicates with the water inlet through the water equalizing holes.

[0015] Optionally, the water distribution plate has a water storage tank for storing water.

[0016] Optionally, the housing assembly includes a housing body and a cover body, and the cover body is detachably and sealingly connected to the housing body;

[0017] And / or, a seal is provided at the water inlet.

[0018] The technical solution of the present utility model has the following advantages:

[0019] 1. The water purification device provided by the present utility model includes a housing assembly and a filter element assembly arranged in the installation cavity of the housing assembly. The filter element assembly includes a first-stage PP cotton filter layer, a second-stage KDF filter layer, and a third-stage PET filter layer arranged in sequence along the water flow direction;

[0020] Through the three-stage filtration in the filter element assembly, the problem of relatively single purification effect is solved, and the water filtration effect is ensured. When raw water enters the filter element assembly through the water inlet, it first passes through the first-stage PP cotton filter layer. The first-stage PP cotton filter layer can effectively filter impurities in the water, such as sediment, rust, suspended matter, etc., making the water quality clearer and more transparent, and also having a certain antibacterial ability, which can effectively prevent bacteria from growing in the filter element. Then the water filtered by the first stage enters the second-stage KDF filter layer. In the second-stage KDF filter layer, residual chlorine and heavy metal ions in the water can be removed through an electrochemical oxidation-reduction reaction. Then it passes through the third-stage PET filter layer. The third-stage PET filter layer has high strength and toughness, high filter mesh precision, and can effectively intercept smaller particle-size impurities and pollutants in the water, such as heavy metal ions such as lead, copper, and mercury, harmful bacteria and viruses, and odor substances, etc. After this filtration, it is the final purified water;

[0021] At the same time, the sequential arrangement of the three different filter layers completes the sequential removal of different pollutants in the water, improves the filtration effect, and each filter layer performs its own functions, and also avoids the damage of the subsequent filter layers by other impurities.

[0022] 2. In the water purification device provided by the present utility model, a stainless steel filter mesh member is arranged between the filter element assembly and the water inlet, which can remove larger particulate impurities in the water and play a role in primary filtration, better extending the service life of the filter element assembly.

[0023] 3. The water purification device provided by the present utility model has a first-stage PP cotton filter layer as a cylindrical filter element. The second-stage KDF filter layer is arranged inside the first-stage PP cotton filter layer, and the third-stage PET filter layer is arranged at the end of the second-stage KDF filter layer. The structure of the filter element assembly is compact and reasonable, and the cylindrical structure can maximize the filtration area and improve the filtration efficiency.

[0024] 4. The water purification device provided by the present utility model has a second-stage KDF filter layer including a support body and filter media arranged inside the support body. Since the filter media is not easy to fill and take out, the support body is provided as a structural body for the filter media, facilitating the replacement of the filter media.

[0025] 5. The water purification device provided by the present utility model has a support body made of non-woven fabric or silicone cloth. The non-woven fabric has high tensile strength and breaking strength, and the silicone cloth has good flexibility, corrosion resistance and stable physical properties, and is a material with high elasticity, high transparency and high weather resistance.

[0026] 6. The water purification device provided by the present utility model has a water storage flow channel between the filter element assembly and the installation cavity. The water storage flow channel is communicated with the water inlet. The setting of the water storage flow channel can enable the water entering the installation cavity to first gather in the water storage flow channel and then pass through the filter element assembly stably in sequence, relieving the pressure of the water at the water inlet and playing a buffering role for the flowing water. Moreover, the setting of the water storage flow channel enables the first-stage PP cotton filter layer to come into contact with water, with high utilization rate.

[0027] 7. The water purification device provided by the present utility model has the filter element assembly coaxially arranged with the installation cavity, and the water storage flow channel is of a ring structure, ensuring that the water entering each position of the filter element assembly is uniform and avoiding serious pollution in some parts while less use in some other parts.

[0028] 8. The water purification device provided by the present utility model has a water distribution plate arranged at the end of the water storage flow channel. A plurality of water equalizing holes are uniformly arranged on the water distribution plate. The water enters the water storage flow channel through the water equalizing holes, playing a buffering role for the water and making the water entering each position of the water storage flow channel relatively uniform.

[0029] 9. The water purification device provided by the present utility model has a water storage tank for storing water on the water distribution plate. The setting of the water storage tank gathers the water passing through the water inlet holes, avoiding a large water pressure at the water inlet due to slow water drop.

[0030] 10. The water purification device provided by the present utility model has a housing assembly including a housing body and a cover body. The cover body and the housing body are detachably connected, facilitating disassembly, assembly and replacement of the internal filter element assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic structural diagram of an embodiment of the water purification device provided in the embodiment of the present utility model;

[0033] Figure 2 For Figure 1 the cross-sectional structural diagram;

[0034] Figure 3 For Figure 1 the structural diagram of the water distribution plate in

[0035] Figure 4 For Figure 1 the exploded structural diagram.

[0036] Explanation of the reference numerals:

[0037] 1. Housing assembly; 2. Water inlet; 3. Water outlet; 4. Filter element assembly; 5. First-stage PP cotton filter layer; 6. Second-stage KDF filter layer; 7. Third-stage PET filter layer; 8. Stainless steel filter mesh part; 9. Support body; 10. Filter media; 11. Water storage flow channel; 12. Water distribution plate; 13. Water equalizing holes; 14. Water storage tank; 15. Housing body; 16. Cover body; 17. Sealing member; 18. Sealing plate; 19. Protrusion. Specific embodiments

[0038] The following will clearly and completely describe the technical solutions of the present utility model in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0039] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0040] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0042] The water purification device provided in this embodiment can be used in a shower water purifier to filter water and ensure the health of the human body.

[0043] As Figure 1 and Figure 2 shown, a specific implementation manner of the water purification device provided in this embodiment includes a housing assembly 1 and a filter element assembly 4. The housing assembly 1 is provided with a water inlet 2 and a water outlet 3, and an installation cavity is arranged inside the housing assembly 1; the filter element assembly 4 is arranged in the installation cavity, and the filter element assembly 4 includes a first-stage PP cotton filter layer 5, a second-stage KDF filter layer 6, and a third-stage PET filter layer 7 arranged in sequence along the water flow direction.

[0044] Through the three-stage filtration in the filter element assembly 4, the problem of relatively single purification effect is solved, and the water filtration effect is ensured. When the raw water enters the filter element assembly 4 through the water inlet 2, it first passes through the first-stage PP cotton filter layer 5. The first-stage PP cotton filter layer can effectively filter impurities in the water, such as sediment, rust, suspended matter, etc., making the water quality clearer and more transparent, and also having a certain antibacterial ability, which can effectively prevent bacteria from growing in the filter element. Then the water filtered through the first stage enters the second-stage KDF filter layer 6. In the second-stage KDF filter layer 6, residual chlorine and heavy metal ions in the water can be removed through an electrochemical oxidation-reduction reaction. Then it passes through the third-stage PET filter layer 7. The third-stage PET filter layer 7 has high strength and toughness, high filter mesh precision, and can effectively intercept smaller particle-size impurities and pollutants in the water, such as heavy metal ions such as lead, copper, and mercury, harmful bacteria and viruses, and odor substances, etc. After this filtration, it is the final purified water; at the same time, the sequential arrangement of the three different filter layers completes the sequential removal of different pollutants in the water, improves the filtration effect, and each filter layer performs its own functions, and also avoids the damage of the subsequent filter layers by other impurities.

[0045] Specifically, the first - stage PP cotton filter layer 5 is a PP cotton filter element, which is a tubular filter element made of non - toxic and odorless polyester fiber particles through processes such as heating and melting, spinning, drawing, and receiving and forming; the second - stage KDF filter layer 6: KDF is a high - purity copper alloy that can remove heavy metals and acid - root ions in water and improve the activation degree of water; the third - stage PET filter layer 7 is a PET filter screen, which is a filter screen made of polyester fiber.

[0046] The specific implementation manner of the housing assembly 1 is as Figure 2 and Figure 4 shown. The housing assembly 1 includes a housing body 15 and a cover body 16. The cover body 16 is detachably and sealingly connected to the housing body 15, which is convenient for disassembly, assembly, and replacement of the internal filter element assembly 4.

[0047] Specifically, the housing body 15 is a cylindrical housing structure. The cover body 16 and the housing body 15 are connected by threads, and a sealing member is provided between the cover body 16 and the housing body 15. The sealing member can be a silicone gasket; the water inlet 2 can be arranged on the cover body 16, and the water outlet 3 is arranged on the side wall of the housing body 15 opposite to the cover body 16. The water entering from the water inlet 2 passes through the internal filter element assembly 4 and is sent out from the opposite water outlet 3. The overall structure is a linear structure, which is convenient for installation in the pipeline of the use scenario. The interfaces of the water inlet 2 and the water outlet 3 are both quarter - inch universal interfaces, which are applicable to most faucets on the market.

[0048] An improved implementation manner of the housing body 15: The housing body 15 is made of food - grade PC transparent material to form a transparent window for checking the filter element situation at any time. Generally, the first - stage PP cotton filter layer 5 is pure white and will turn yellow and darken with the use time and pollution degree, which is convenient for timely replacement. Additionally, as an alternative implementation manner, the housing body 15 can also be made of materials such as stainless steel, and a viewing window is set in a selected area on the housing body 15.

[0049] An improved implementation manner of the cover body 16: The cover body 16 is provided with anti - slip patterns, which is convenient for disassembly and installation.

[0050] In addition, as an alternative implementation manner, cover bodies 16 can be detachably installed at both ends of the housing body 15, and the water inlet 2 and the water outlet 3 are respectively arranged on the two cover bodies 16.

[0051] In addition, as an alternative implementation manner, the water inlet 2 and the water outlet 3 may not be arranged opposite to each other. For example, the water inlet 2 is arranged at the end, the water outlet 3 is arranged on the side wall, or the water inlet 2 and the water outlet 3 can both be arranged on the side wall.

[0052] As Figure 2 shown, in the water purification device provided in this embodiment, a sealing member 17 is arranged at the water inlet 2. Specifically, the sealing member 17 can be a silicone gasket, which realizes sealing to prevent water leakage after being installed with the faucet.

[0053] As shown Figure 2 in the figure, for the water purification device provided in this embodiment, the first-stage PP cotton filter layer 5 is a cylindrical filter element, the second-stage KDF filter layer 6 is arranged inside the first-stage PP cotton filter layer 5, and the third-stage PET filter layer 7 is arranged at the end of the second-stage KDF filter layer 6. The structural arrangement of the filter element assembly 4 is compact and reasonable, and the cylindrical structural arrangement can maximize the filtration area and improve the filtration efficiency.

[0054] Specifically, the first-stage PP cotton filter layer 5 is of a cylindrical structure, and the second-stage KDF filter layer 6 in a cylindrical shape is filled inside it. The third-stage PET filter layer 7 is of a circular filter mesh structure and is adapted to the second-stage KDF filter layer 6. To ensure that the water entering the installation cavity only passes through the first-stage PP cotton filter layer 5, the length of the filter element assembly 4 can be set such that its bottom abuts against the side wall on the side where the water outlet 3 is located, and a sealing plate 18 is arranged at one end close to the water outlet 3 between the first-stage PP cotton filter layer 5 and the second-stage KDF filter layer 6. The height of the sealing plate 18 only needs to separate a short distance to prevent water from directly seeping from between the first-stage PP cotton filter layer 5 and the side wall to the third-stage PET filter layer 7 or the water outlet 3 without passing through the second-stage KDF filter layer 6. The other end of the first-stage PP cotton filter layer 5 can be blocked by the water distribution plate 12 mentioned later.

[0055] In addition, as an alternative implementation, the first-stage PP cotton filter layer 5, the second-stage KDF filter layer 6, and the third-stage PET filter layer 7 can be of a plate structure and are stacked in sequence. The water passing through the water inlet 2 flows out from the water outlet 3 after being filtered three times in sequence.

[0056] As shown Figure 2 in the figure, for the water purification device provided in this embodiment, the second-stage KDF filter layer 6 includes a support body 9 and a filter material 10 arranged inside the support body 9. Since the filter material is not easy to fill and take out, the setting of the support body 9 serves as the structural body of the filter material 10, facilitating the replacement of the filter material 10. The filter material 10 is specifically a KDF filter material.

[0057] Specifically, the support body 9 is a non-woven fabric or a silica gel cloth. The non-woven fabric has high tensile strength and breaking strength, and the silica gel cloth has good flexibility, corrosion resistance, and stable physical properties, and is a material with high elasticity, high transparency, and high weather resistance.

[0058] As shown Figure 2As shown in the figure, for the water purification device provided in this embodiment, there is a water storage flow channel 11 between the filter element assembly 4 and the installation cavity, and the water storage flow channel 11 is communicated with the water inlet 2. The setting of the water storage flow channel 11 enables the water entering the installation cavity to first gather in the water storage flow channel 11 and then pass through the filter element assembly 4 stably in sequence, relieving the pressure of the water at the water inlet, playing a buffering role for the flowing water, and the setting of the water storage flow channel 11 enables the first-stage PP cotton filter layer 5 to come into contact with water, with high utilization rate.

[0059] A specific implementation manner of the water storage flow channel 11, the filter element assembly 4 and the installation cavity are coaxially arranged, and the water storage flow channel 11 is of an annular structure, ensuring that the water entering each position of the filter element assembly 4 is uniform, avoiding serious pollution in some parts and less use in some parts. Specifically, the annular structure is a circular annular structure.

[0060] Specifically, the filter element assembly 4 is coaxially arranged with both the water inlet 2 and the water outlet 3.

[0061] As Figure 3 As shown in the figure, for the water purification device provided in this embodiment, a water distribution plate 12 is arranged at the end of the water storage flow channel 11, and a plurality of water equalizing holes 13 communicated with the water storage flow channel 11 are uniformly arranged on the water distribution plate 12, and the water storage flow channel 11 is communicated with the water inlet 2 through the water equalizing holes 13. The water enters the water storage flow channel 11 through the water equalizing holes 13, playing a buffering role for the water, and the water entering each position of the water storage flow channel 11 is relatively uniform.

[0062] A specific implementation manner of the water distribution plate 12, the water distribution plate 12 is of an annular structure, which is arranged between the cover body 16 and the filter element assembly 4. The middle part of the water distribution plate 12 plays a blocking role for the filter element assembly 4, avoiding the water passing through the water inlet 2 from directly entering the second-stage KDF filter layer 6. The water equalizing holes 13 are arranged at the edge of the water distribution plate 12, opposite to the water storage flow channel 11, so that the entering water can only enter the water storage flow channel 11.

[0063] Specifically, a protrusion 19 is arranged on the side wall of the water distribution plate 12 opposite to the water inlet 2, and the protrusion 19 abuts against the cover body 16, so that there is a gap between the water distribution plate 12 and the cover body 16, facilitating the passage of water. Additionally, as an alternative implementation manner, a protrusion 19 can also be arranged on the cover body 16, and the protrusion 19 can be an arc-shaped or circular protrusion.

[0064] As Figure 2As shown, for the water purification device provided in this embodiment, the water distribution plate 12 has a water storage tank 14 for storing water. The setting of the water storage tank 14 aggregates the water passing through the water inlet holes, avoiding a large water pressure at the water inlet 2 caused by the slow falling of water. Specifically, the water storage tank 14 is a circular groove, which is adapted to the internal structure of the first-stage PP cotton filter layer 5, and the water storage tank 14 is inserted into the end of the first-stage PP cotton filter layer 5. Additionally, as an alternative implementation, the water storage tank 14 may not be provided, and the space between the water distribution plate 12 and the cover 16 can be enlarged.

[0065] As Figure 2 shown, for the water purification device provided in this embodiment, a stainless steel filter screen member 8 is provided between the filter element assembly 4 and the water inlet 2, which can remove larger particulate impurities in the water, playing a role in primary filtration and better extending the service life of the filter element assembly 4; the stainless steel filter screen member 8 can be reused after being rinsed with clean water.

[0066] A specific implementation of the stainless steel filter screen member 8 is that there are multiple stainless steel filter screen members 8, which are respectively arranged on the water equalizing holes 13 on the water distribution plate 12.

[0067] Another specific implementation of the stainless steel filter screen member 8 is that the stainless steel filter screen member 8 is directly arranged at the water inlet 2.

[0068] The filtration method of the water purification device provided in this embodiment: Raw water flows into the housing assembly 1 from the water inlet 2, first passes through the stainless steel filter screen member 8 on the water equalizing holes 13 of the water distribution plate 12 for filtration, then filters from the outside to the inside through the first-stage PP cotton filter layer, then passes through the KDF filter layer for filtration, and finally filters through the PET filter layer to the water outlet 3 to obtain purified water.

[0069] The replacement method of the filter element assembly 4 of the water purification device provided in this embodiment: Rotate the cover 16 to screw out the cover 16 and take out the water distribution plate 12; first take out the contaminated second-stage KDF filter layer 6, and then take out the contaminated first-stage PP cotton filter layer 5; then take out the contaminated third-stage PET filter layer 7 and replace it with a new third-stage PET filter layer 7; then replace the new first-stage PP cotton filter layer 5, and then fill the new second-stage KDF filter layer 6 into the first-stage PP cotton filter layer 5; install the water distribution plate 12, and finally screw on the cover 16.

[0070] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. A water purification device, characterized in that: include: A shell component (1) is provided with a water inlet (2) and a water outlet (3), and a mounting cavity is provided inside the shell component (1); A filter element assembly (4) is arranged in the installation cavity, wherein the filter element assembly (4) comprises a first-stage PP cotton filter layer (5), a second-stage KDF filter layer (6) and a third-stage PET filter layer (7) which are arranged in sequence along the water flow direction; A stainless steel filter element (8) is provided between the filter element assembly (4) and the water inlet (2).

2. The water purification device according to claim 1, characterized in that: The first-stage PP cotton filter layer (5) is a cylindrical filter element, the second-stage KDF filter layer (6) is arranged inside the first-stage PP cotton filter layer (5), and the third-stage PET filter layer (7) is arranged at the end of the second-stage KDF filter layer (6).

3. The water purification device according to claim 2, characterized in that: The second-stage KDF filter layer (6) comprises a support body (9) and a filter material (10) arranged inside the support body (9).

4. The water purification device according to claim 3, characterized in that: The support body (9) is a non-woven fabric or a silicone fabric.

5. The water purification device according to claim 1, characterized in that: A water storage channel (11) is provided between the filter element assembly (4) and the installation cavity, and the water storage channel (11) is in communication with the water inlet (2).

6. The water purification device according to claim 5, characterized in that: The filter element assembly (4) is coaxially arranged with the installation cavity, and the water storage channel (11) is an annular structure.

7. The water purification device according to claim 6, characterized in that: A water distribution plate (12) is provided at the end of the water storage flow channel (11), and a plurality of water distribution holes (13) connected to the water storage flow channel (11) are evenly distributed on the water distribution plate (12); the water storage flow channel (11) is connected to the water inlet (2) via the water distribution holes (13).

8. The water purification device according to claim 7, characterized in that: The water distribution plate (12) has a water storage tank (14) for storing water.

9. The water purification device according to any one of claims 1 to 8, characterized in that: The housing assembly (1) comprises a housing body (15) and a cover body (16), wherein the cover body (16) is detachably and hermetically connected to the housing body (15); And / or, a sealing member (17) is provided at the water inlet (2).

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