Filter element structure and water purifier

Abstract

The utility model provides a filter element structure and a water purifier, and the filter element structure comprises: an RO membrane filter element having a pure water cavity; the mounting base body is arranged in the pure water cavity, the mounting base body is provided with a mineralization cavity, and the mineralization cavity is communicated with the pure water cavity; the mineralization filter element is arranged in the mineralization cavity, and the mineralization filter element is provided with a mineralization water channel; at least part of the water outlet pipeline is arranged in the mineralized water channel, and the water outlet pipeline is communicated with the mineralized water channel; the first end cover is located in the pure water cavity, the first end cover covers the mounting base body and covers the end opening of the mineralization cavity, the inner side wall of the first end cover is connected with the outer side wall of the water outlet pipeline, and the outer side wall of the first end cover is connected with the inner side wall of the mineralization cavity. The process of gluing between the RO membrane filter element and the mineralization filter element and between the mineralization filter element and the water outlet pipeline is omitted, the installation process is simplified, and the installation efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of filter element technology, and in particular to a filter element structure and a water purifier. Background Art

[0002] The filter element is one of the core components of a water purifier. At present, some filter elements on the market are composite structures composed of RO membrane filter elements and mineralized filter elements. The RO membrane filter element is used to filter out inorganic salts, heavy metal ions, organic matter, colloids, bacteria, viruses and other impurities in the water to obtain pure water that can be directly drunk. The mineralized filter element is then used to filter the pure water to provide it with a variety of minerals and trace elements, and to filter out impurities and harmful substances in the pure water to improve the nutritional value and taste of the pure water.

[0003] However, the above-mentioned filter elements on the market require a multi-step gluing process to achieve a sealed connection between the mineralized filter element and the RO membrane filter element and between the mineralized filter element and the water outlet pipe. The installation process is complicated, resulting in low installation efficiency. Utility Model Content

[0004] The embodiment of the present application provides a filter element structure and a water purifier to solve the problems existing in the related technology. The technical solution is as follows:

[0005] In a first aspect, an embodiment of the present application provides a filter element structure, comprising:

[0006] An RO membrane filter element, wherein the RO membrane filter element has a pure water cavity;

[0007] A mounting base, the mounting base is arranged in the pure water cavity, the mounting base has a mineralized cavity, and the mineralized cavity is connected to the pure water cavity;

[0008] A mineralized filter element, the mineralized filter element is arranged in the mineralized cavity, and the mineralized filter element has a mineralized water channel;

[0009] a water outlet pipe, at least a portion of which is disposed in the mineralized water channel, and the water outlet pipe is connected to the mineralized water channel;

[0010] A first end cover, wherein the first end cover is located in the pure water cavity, the first end cover is disposed on the mounting base and covers the end opening of the mineralization cavity, and the inner side wall of the first end cover is connected to the outer side wall of the water outlet pipe, and the outer side wall of the first end cover is connected to the inner side wall of the mineralization cavity.

[0011] In one embodiment, the filter element structure further includes:

[0012] A first sealing member, wherein the first sealing member is located between an inner side wall of the first end cover and an outer side wall of the water outlet pipe, and the first end cover and the water outlet pipe mutually squeeze the first sealing member;

[0013] A second sealing member is disposed between an outer side wall of the first end cover and an inner side wall of the mineralization cavity, and the first end cover and the mounting base mutually squeeze the second sealing member.

[0014] In one embodiment, a first positioning groove is provided on one of the first end cover and the water outlet pipe, and the first positioning groove is adapted to fit the first sealing member;

[0015] A second positioning groove is provided on one of the first end cover and the mounting base, and the second positioning groove is adapted to the second sealing member.

[0016] In one embodiment, the first positioning groove and the second positioning groove are both located on the first end cover.

[0017] In one embodiment, the water outlet pipe is provided with a water inlet section and a water outlet section, the water inlet section and the water outlet section are arranged in sequence along the length direction of the water outlet pipe, the water inlet section is arranged in the mineralized water channel and connected to the mineralized water channel, and the water outlet section is arranged at the end of the pure water chamber and connected to the water inlet section;

[0018] The first end cover is sleeved on the water inlet section and is located between the water outlet section and the installation base.

[0019] In one embodiment, a mounting hole is provided on one end of the mounting base, the mounting hole and the first end cover are arranged opposite to each other, and one end of the water outlet pipe is inserted into the mounting hole.

[0020] In one embodiment, the filter element structure further includes:

[0021] The second end cover is arranged on the other end of the pure water chamber and covers the other end opening of the pure water chamber. The second end cover is provided with a mounting groove, and the mounting groove and the end of the water outlet pipe extending to the outside of the mounting hole are plugged and matched.

[0022] In one embodiment, the filter element structure further includes:

[0023] A third sealing member is located between the hole wall of the mounting hole and the water outlet pipe, and the mounting base and the water outlet pipe mutually squeeze the third sealing member.

[0024] In one embodiment, a third positioning groove is provided on one of the installation base and the water outlet pipe, and the third positioning groove is matched with the third sealing member.

[0025] In one embodiment, a sealant is provided between the installation groove and the water outlet pipe, and the sealant connects the second end cover and the water outlet pipe.

[0026] In a second aspect, an embodiment of the present application provides a water purifier, comprising the above-mentioned filter element structure.

[0027] The advantages or beneficial effects of the above technical solution include at least:

[0028] The filter element structure of the utility model, by arranging a mounting base between the RO membrane filter element and the mineralized filter element and arranging a first end cap on the mounting base, can, on the one hand, utilize the mounting base to block the gap between the RO membrane filter element and the mineralized filter element to prevent water leakage between the RO membrane filter element and the mineralized filter element, and on the other hand, can utilize the first end cap to block the end opening of the mounting base to achieve sealing of the mineralized filter element in the mounting base. At the same time, since the inner side wall of the first end cap is connected to the outer side wall of the water outlet pipe and the outer side wall of the first end cap is connected to the inner side wall of the mineralized cavity, the gap between the first end cap and the water outlet pipe and the gap between the first end cap and the mounting base can be sealed, thereby playing a role in preventing water leakage, eliminating the process of applying glue between the RO membrane filter element and the mineralized filter element and between the mineralized filter element and the water outlet pipe, simplifying the installation process, and improving the installation efficiency.

[0029] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the filter element structure of the utility model;

[0032] Figure 2 This is an exploded view of the filter element structure of the utility model;

[0033] Figure 3 It is a cross-sectional view of the filter element structure of the utility model;

[0034] Figure 4 for Figure 3 A local enlarged view of point A in FIG.

[0035] Figure 5 for Figure 3 A partial enlarged view of point B in FIG.

[0036] Reference numerals

[0037] 1. RO membrane filter element; 11. pure water cavity; 2. mounting base; 21. mineralization cavity; 22. first water inlet hole; 23. mounting hole; 24. third positioning groove; 3. mineralization filter element; 31. mineralized water channel; 4. water outlet pipe; 41. water inlet section; 411. water inlet cavity; 412. second water inlet hole; 42. water outlet section; 421. water outlet cavity; 5. first end cover; 51. first positioning groove; 52. second positioning groove; 6. first sealing member; 7. second sealing member; 8. third sealing member; 9. second end cover; 91. mounting groove; 10. sealant; 20. water outlet joint. DETAILED DESCRIPTION

[0038] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0039] In the related art, the RO membrane filter element 1 and the mineralized filter element 3 as well as the mineralized filter element 3 and the outlet pipe 4 are connected by gluing, which requires multiple steps of gluing process to complete the installation, resulting in complex installation process and low installation efficiency.

[0040] See also Figure 1-Figure 5 , shows a filter element structure of a preferred embodiment of the utility model, including:

[0041] The RO membrane filter element 1 has a pure water chamber 11;

[0042] The mounting base 2 is arranged in the pure water cavity 11, and the mounting base 2 has a mineralization cavity 21, and the mineralization cavity 21 is connected to the pure water cavity 11;

[0043] A mineralized filter element 3, the mineralized filter element 3 is disposed in the mineralized cavity 21, and the mineralized filter element 3 has a mineralized water channel 31;

[0044] A water outlet pipe 4, at least a portion of which is disposed in the mineralized water channel 31, and the water outlet pipe 4 is connected to the mineralized water channel 31;

[0045] The first end cover 5 is located in the pure water chamber 11, the first end cover 5 is covered on the mounting base 2 and covers the end opening of the mineralization chamber 21, and the inner wall of the first end cover 5 is connected to the outer wall of the water outlet pipe 4, and the outer wall of the first end cover 5 is connected to the inner wall of the mineralization chamber 21.

[0046] The filter element structure of the utility model is provided with a mounting base 2 between the RO membrane filter element 1 and the mineralized filter element 3 and a first end cap 5 is provided on the mounting base 2. On the one hand, the mounting base 2 can be used to block the gap between the RO membrane filter element 1 and the mineralized filter element 3 to prevent water leakage between the RO membrane filter element 1 and the mineralized filter element 3. On the other hand, the first end cap 5 can be used to block the end opening of the mounting base 2 to achieve the mineralized filter element 3 being sealed in the mounting base 2. At the same time, due to the connection between the inner side wall of the first end cap 5 and the outer side wall of the water outlet pipe 4 and the outer side wall of the first end cap 5 and the inner side wall of the mineralized cavity 21, the mineralized filter element 3 can be sealed in the mounting base 2. The wall connection can seal the gap between the first end cover 5 and the water outlet pipe 4 and the gap between the first end cover 5 and the installation base 2, thereby preventing water leakage, eliminating the process of gluing between the RO membrane filter element 1 and the mineralized filter element 3 and between the mineralized filter element 3 and the water outlet pipe 4, simplifying the installation process, and improving the installation efficiency. In addition, by installing the mineralized filter element 3 in the RO membrane filter element 1, the internal space utilization rate of the RO membrane filter element 1 can be improved. At the same time, the volume of the filter element structure is reduced, making the overall structure of the filter element structure more compact, occupying less space, and convenient for installation.

[0047] The mounting base 2 also has a plurality of first water inlet holes 22 , which are spaced apart on the side of the mounting base 2 . The first water inlet holes 22 connect the pure water cavity 11 and the mineralization cavity 21 , so that pure water can flow into the mineralization cavity 21 .

[0048] In one embodiment, the inner wall of the first end cover 5 and the outer wall of the water outlet pipe 4 are interference fit, and the outer wall of the first end cover 5 and the inner wall of the mineralization cavity 21 are interference fit, so that the inner wall of the first end cover 5 and the outer wall of the water outlet pipe 4 are squeezed against each other, and the outer wall of the first end cover 5 and the inner wall of the mineralization cavity 21 are squeezed against each other, which can improve the sealing reliability.

[0049] See also Figure 3-Figure 4 In one embodiment, the filter element structure further comprises:

[0050] A first sealing member 6, which is located between the inner side wall of the first end cover 5 and the outer side wall of the water outlet pipe 4. The first end cover 5 and the water outlet pipe 4 mutually squeeze the first sealing member 6 to reliably seal the gap between the first end cover 5 and the water outlet pipe 4, thereby improving the reliability of preventing water leakage;

[0051] The second sealing member 7 is located between the outer side wall of the first end cover 5 and the inner side wall of the mineralization cavity 21. The first end cover 5 and the mounting base 2 mutually squeeze the second sealing member 7 to reliably seal the gap between the first end cover 5 and the mounting base 2, thereby improving the reliability of preventing water leakage.

[0052] See also Figure 4In one embodiment, a first positioning groove 51 is provided on one of the first end cover 5 and the water outlet pipe 4, and the first positioning groove 51 is adapted to the first sealing member 6 to position the first sealing member 6, so as to ensure that the first sealing member 6 can reliably seal the gap between the first end cover 5 and the water outlet pipe 4;

[0053] A second positioning groove 52 is provided on one of the first end cover 5 and the mounting base 2 , and the second positioning groove 52 is adapted to the second sealing member 7 to position the second sealing member 7 to ensure that the second sealing member 7 can reliably seal the gap between the first end cover 5 and the mounting base 2 .

[0054] See also Figure 4 In one embodiment, the first positioning groove 51 and the second positioning groove 52 are both located on the first end cover 5. In this way, before installing the first end cover 5 on the mounting base 2, the first seal 6 and the second seal 7 can be installed on the first end cover 5 first, and then the first end cover 5 can be installed on the mounting base 2, which is more convenient for the installation of the first seal 6 and the second seal 7 and more convenient for installation.

[0055] See also Figure 2-Figure 3 In one embodiment, the outlet pipe 4 is provided with an inlet section 41 and an outlet section 42, which are arranged in sequence along the length direction of the outlet pipe 4. The inlet section 41 is arranged in the mineralized water channel 31 and connected to the mineralized water channel 31, so that the mineralized water in the mineralized water channel 31 flows into the inlet section 41. The outlet section 42 is arranged at the end of the pure water chamber 11 and connected to the inlet section 41, so that the mineralized water in the inlet section 41 flows into the outlet section 42.

[0056] The first end cap 5 is sleeved on the water inlet section 41 and is located between the water outlet section 42 and the mounting base 2. In this way, on the one hand, the water outlet section 42 can be used to block the end of the pure water cavity 11, thereby playing a certain sealing role in the gap between the RO membrane filter element 1 and the water outlet section 42, preventing water from leaking from the gap between the RO membrane filter element 1 and the water outlet section 42, so as to further improve the water leakage prevention performance. On the other hand, the first end cap 5 can be sandwiched by the water outlet section 42 and the mounting base 2, which can limit the first end cap 5 from being separated from the mounting base 2, thereby improving the connection reliability between the first end cap 5 and the mounting base 2, and at the same time, it can also improve the sealing reliability between the first end cap 5 and the mounting base 2 and between the first end cap 5 and the water inlet section 41, and the water leakage prevention performance is higher.

[0057] Among them, see Figure 4 The water inlet section 41 has a water inlet cavity 411 and a second water inlet hole 412. The second water inlet hole 412 is located on the side of the water inlet section 41. The second water inlet hole 412 connects the mineralized water channel 31 and the water inlet cavity 411. The water outlet section 42 has a water outlet cavity 421. The water outlet cavity 421 connects the water inlet cavity 411.

[0058] See also Figure 5 In one embodiment, a mounting hole 23 is provided on one end of the mounting base 2, the mounting hole 23 and the first end cover 5 are arranged opposite to each other, and one end of the water outlet pipe 4 is inserted into the mounting hole 23. In this way, the mounting base 2 can be used to support the water outlet pipe 4, thereby improving the installation reliability of the water outlet pipe 4.

[0059] See also Figure 2-Figure 3 as well as Figure 5 In one embodiment, the filter element structure further comprises:

[0060] The second end cap 9 is arranged on the other end of the pure water chamber 11 and covers the other end opening of the pure water chamber 11. The second end cap 9 is provided with a mounting groove 91. The mounting groove 91 and the end of the water outlet pipe 4 extending outside the mounting hole 23 are plugged and matched. In this way, the second end cap 9 can be used to block the end of the pure water chamber 11. On the one hand, it can play a certain sealing role on the gap between the RO membrane filter element 1 and the second end cap 9. In the case of water leakage in the gap between the RO membrane filter element 1 and the mounting base 2, it can still limit the leakage of water from the end of the RO membrane filter element 1, thereby increasing the reliability of water leakage prevention. On the other hand, the second end cap 9 can be used to support the water outlet pipe 4, thereby improving the installation reliability of the water outlet pipe 4 and achieving higher structural reliability.

[0061] The end of the installation groove 91 away from the water outlet pipe 4 is closed to prevent water leakage from the installation groove 91, thereby further improving the reliability of water leakage prevention.

[0062] See also Figure 3 as well as Figure 5 In one embodiment, the filter element structure further comprises:

[0063] The third sealing member 8 is located between the hole wall of the mounting hole 23 and the water outlet pipe 4. The mounting base 2 and the water outlet pipe 4 squeeze the third sealing member 8 against each other to seal the gap between the mounting base 2 and the water outlet pipe 4 to prevent water leakage, thereby further improving the reliability of preventing water leakage.

[0064] See also Figure 5 In one embodiment, a third positioning groove 24 is provided on one of the mounting base 2 and the water outlet pipe 4, and the third positioning groove 24 is adapted to the third sealing member 8 to position the third sealing member 8, thereby ensuring that the third sealing member 8 can reliably seal the gap between the mounting base 2 and the water outlet pipe 4.

[0065] Specifically, the third positioning groove 24 is located on the mounting base 2 to facilitate the installation of the third sealing member 8 and make the installation more convenient.

[0066] The first sealing member 6 , the second sealing member 7 and the third sealing member 8 may be any one of a sealing ring, a sealing belt and the like.

[0067] See also Figure 5 In one embodiment, a sealant 10 is provided between the mounting groove 91 and the water outlet pipe 4, and the sealant 10 connects the second end cover 9 and the water outlet pipe 4 to seal the gap between the mounting groove 91 and the water outlet pipe 4 to prevent water leakage. At the same time, the sealant 10 can also be used to connect the second end cover 9 and the water outlet pipe 4, thereby improving the connection reliability between the second end cover 9 and the water outlet pipe 4, and the structural reliability is higher.

[0068] In one embodiment, the filter element structure also includes a non-woven fabric (not shown in the figure), which is located in the water outlet chamber 421 and can cover the connecting port between the water inlet chamber 411 and the water outlet chamber 421, so as to intercept the filter material in the mineralized filter element 3 from flowing out of the water outlet chamber 421 along with the mineralized water.

[0069] The mineralized filter element 3 is specifically a mineralized carbon rod.

[0070] See also Figure 1-Figure 3 In one embodiment, the filter element structure further includes a water outlet connector 20, which is inserted into the water outlet cavity 421, and the water outlet connector 20 is connected to the water outlet cavity 421, and the water outlet connector 20 is used to connect to an external water outlet pipe.

[0071] The working principle of the filter element structure of the utility model is as follows:

[0072] The water enters from the side of the RO membrane filter element 1, and pure water is obtained after filtering by the RO membrane filter element 1. The pure water passes through the mounting base 2 and then enters from the side of the mineralized filter element 3 and passes through the mineralized filter element 3 to obtain mineralized water. The mineralized water enters the water outlet pipe 4, then passes through the non-woven fabric, and then flows out through the water outlet joint 20.

[0073] A preferred embodiment of the present utility model provides a water purifier, comprising the above-mentioned filter element structure.

[0074] The water purifier of the present invention, due to the adoption of the above-mentioned filter element structure, can also avoid the process of applying glue between the RO membrane filter element 1 and the mineralized filter element 3 and between the mineralized filter element 3 and the water outlet pipe 4, thereby simplifying the installation process and improving the installation efficiency.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0077] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. Filter element structure, characterized in that: include: An RO membrane filter element, wherein the RO membrane filter element has a pure water cavity; A mounting base, the mounting base is arranged in the pure water cavity, the mounting base has a mineralized cavity, and the mineralized cavity is connected to the pure water cavity; A mineralized filter element, the mineralized filter element is arranged in the mineralized cavity, and the mineralized filter element has a mineralized water channel; a water outlet pipe, at least a portion of which is disposed in the mineralized water channel, and the water outlet pipe is connected to the mineralized water channel; A first end cover, wherein the first end cover is located in the pure water cavity, the first end cover is disposed on the mounting base and covers the end opening of the mineralization cavity, and the inner side wall of the first end cover is connected to the outer side wall of the water outlet pipe, and the outer side wall of the first end cover is connected to the inner side wall of the mineralization cavity.

2. The filter element structure according to claim 1, characterized in that: The filter element structure also includes: A first sealing member, wherein the first sealing member is located between an inner side wall of the first end cover and an outer side wall of the water outlet pipe, and the first end cover and the water outlet pipe mutually squeeze the first sealing member; A second sealing member is disposed between an outer side wall of the first end cover and an inner side wall of the mineralization cavity, and the first end cover and the mounting base mutually squeeze the second sealing member.

3. The filter element structure according to claim 2, characterized in that: A first positioning groove is provided on one of the first end cover and the water outlet pipe, and the first positioning groove is adapted to fit the first sealing member; A second positioning groove is provided on one of the first end cover and the mounting base, and the second positioning groove is adapted to the second sealing member.

4. The filter element structure according to claim 1, characterized in that: The water outlet pipe is provided with a water inlet section and a water outlet section, and the water inlet section and the water outlet section are arranged in sequence along the length direction of the water outlet pipe, the water inlet section is arranged in the mineralized water channel and connected to the mineralized water channel, and the water outlet section is arranged at the end of the pure water chamber and connected to the water inlet section; The first end cover is sleeved on the water inlet section and is located between the water outlet section and the installation base.

5. The filter element structure according to claim 1, characterized in that: A mounting hole is provided on one end of the mounting base, the mounting hole and the first end cover are arranged opposite to each other, and one end of the water outlet pipe is inserted into the mounting hole.

6. The filter element structure according to claim 5, characterized in that: The filter element structure also includes: The second end cover is arranged on the other end of the pure water chamber and covers the other end opening of the pure water chamber. The second end cover is provided with a mounting groove, and the mounting groove and the end of the water outlet pipe extending to the outside of the mounting hole are plugged and matched.

7. The filter element structure according to claim 6, characterized in that: The filter element structure also includes: A third sealing member is located between the hole wall of the mounting hole and the water outlet pipe, and the mounting base and the water outlet pipe mutually squeeze the third sealing member.

8. The filter element structure according to claim 7, characterized in that: A third positioning groove is provided on one of the installation base and the water outlet pipe, and the third positioning groove is matched with the third sealing member.

9. The filter element structure according to claim 6, characterized in that: A sealant is provided between the installation groove and the water outlet pipe, and the sealant connects the second end cover and the water outlet pipe.

10. A water purifier, characterized in that: The invention comprises the filter element structure described in any one of claims 1 to 9.

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