CN213475563U - Multifunctional composite filter element and water purification cup - Google Patents
Multifunctional composite filter element and water purification cup Download PDFInfo
- Publication number
- CN213475563U CN213475563U CN202021906078.7U CN202021906078U CN213475563U CN 213475563 U CN213475563 U CN 213475563U CN 202021906078 U CN202021906078 U CN 202021906078U CN 213475563 U CN213475563 U CN 213475563U
- Authority
- CN
- China
- Prior art keywords
- filter element
- filter
- shell
- cup
- water purification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The utility model provides a multi-functional composite filter element and water purification cup, this multi-functional composite filter element includes: the filter element shell is internally provided with an annular first limiting step; the lower end of the first filter element is arranged in the filter element shell in an inserting mode, and the lower end face of the first filter element is abutted to the upper end face of the first limiting step; and the second filter element is arranged inside the filter element shell in an inserting mode, and the lower end face of the second filter element is flush with the lower end face of the filter element shell. This water purification cup includes cup body, inner bag and this multi-functional composite filter core. The utility model discloses in, when the filter media life in one of them filter core expires, can change with regard to this filter core alone, and can not influence the normal use of other filter cores that life does not expire, can make the filter media thing in the filter core make the best use of, can not cause the waste, effectively reduced user's the cost of changing the core.
Description
Technical Field
The utility model relates to a water purification filter core technical field, concretely relates to multi-functional composite filter core and water purification cup.
Background
The water purifying cup is a cup capable of containing a certain amount of water, filtering the water by a filter element and finally converting the water into direct drinking water. The desktop type water purifying cup has the advantages of being light, movable, attractive in appearance and the like, and is most favored by users.
Most of filter elements in the desktop type water purifying cup are active carbon filter elements, active carbon + resin filter elements or ultrafiltration membranes + active carbon filter elements and the like, the structure of the desktop type water purifying cup is integrated, and the filter elements in the filter elements cannot be replaced, so that the whole filter elements need to be replaced uniformly when the service life of a certain filter element expires. Generally, due to the small volume of the filter element, the replacement time is generally about 1 month.
Because the filter material quantity and the life-span of filter core are not completely unanimous, unified change can cause very big waste when the life of a certain filter material expires, can not accomplish the best use of things, still can increase user's the cost of changing the core. For example, in the ultrafiltration membrane and activated carbon filter element, the service life of the ultrafiltration membrane is as long as more than half a year, while the service life of the activated carbon is only one month due to the limited loading capacity, so in order to achieve a good purification effect, the filter element needs to be replaced uniformly after one month of use.
It is noted that this section is intended to provide a background or context to the embodiments of the disclosure that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a multi-functional composite filter element and water purification cup to the filter core in the water purification cup adopts integrative structure and the problem that needs to unify the change with whole filter core when the life of a certain filter media expires among the solution prior art.
In a first aspect, an embodiment of the present invention provides a multifunctional composite filter element, include:
the filter element shell is internally provided with an annular first limiting step;
the lower end of the first filter element is arranged in the filter element shell in an inserting mode, and the lower end face of the first filter element is abutted to the upper end face of the first limiting step;
and the second filter element is arranged inside the filter element shell in a splicing mode, and the lower end face of the second filter element is flush with the lower end face of the filter element shell.
As the utility model discloses the preferred mode of the first aspect, first filter core is the milipore filter core, the milipore filter core adopts hydrophilicity non-pressure hollow fiber membrane silk to make.
As the utility model discloses the preferred mode of the first aspect, the second filter core is the carbon fiber piece filter core, the carbon fiber piece filter core adopts nanometer carbon fiber material to make.
As the utility model discloses the preferred mode of the first aspect, the lower extreme lateral surface of first filter core is provided with first seal groove, be provided with first O type sealing washer in the first seal groove.
In a second aspect, an embodiment of the present invention provides a water purification cup, which includes a cup body, an inner container, and the multifunctional composite filter element described in any one of the first aspect and the preferred mode thereof;
the multifunctional composite filter comprises a cup body and is characterized in that an opening is formed in the upper end of the cup body, the inner container is arranged in the cup body, the upper end of the inner container is sleeved at the opening of the cup body, and the lower end of the inner container is connected with the multifunctional composite filter element.
As a preferable mode of the second aspect of the present invention, the lower end of the inner container has an installation opening, and the inside of the filter element shell is further provided with an annular second limiting step, and the second limiting step is located above the first limiting step;
the installing port is arranged inside the filter element shell in an inserting mode, and the outer side face of the installing port is tightly attached to the inner side face, located above the second limiting step, inside the filter element shell.
As the utility model discloses the preferred mode of the second aspect, the lateral surface of installing port is provided with the second seal groove, be provided with second O type sealing washer in the second seal groove.
As the utility model discloses the preferred mode of second aspect still includes the faucet, faucet upper end medial surface is provided with the internal thread, filter core shell lower extreme lateral surface correspondence is provided with the external screw thread, the faucet passes through the internal thread with external screw thread threaded connection in the filter core shell lower extreme outside.
As a preferable mode of the second aspect of the present invention, a gap is formed between the spout and the cup body.
The embodiment of the utility model provides a multi-functional composite filter element and water purification cup, through at inside first filter core and the second filter core that has set up the relatively independent of structure of filter shell, and first filter core and second filter core have adopted the filter media of different functions respectively, like this when the filter media life in one of them filter core expires, can change with regard to this filter core alone, and can not influence the normal use of other filter cores that life does not expire, can make the filter media thing in the filter core make the best of use, can not cause the waste, user's the cost of changing the core has effectively been reduced.
Simultaneously, this multi-functional composite filter core and water purification cup simple structure, convenient to use, the filter core is easily changed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a multifunctional composite filter element provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of a water purification cup provided by an embodiment of the present invention;
fig. 3 is an explosion structure diagram of a water purification cup according to an embodiment of the present invention.
The filter element comprises a filter element shell 10, a filter element shell 11, a first limiting step 12, a second limiting step 13 and external threads;
20. a first filter element 21 and a first O-shaped sealing ring;
30. a second filter element;
40. a cup body;
50. the inner container 51, the mounting opening 52 and the second O-shaped sealing ring;
60. water outlet nozzle 61 and internal thread.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Referring to fig. 1, the embodiment of the utility model discloses a multi-functional composite filter element, it mainly includes:
a filter element shell 10, wherein an annular first limit step 11 is arranged in the filter element shell;
the lower end of the first filter element 20 is arranged in the filter element shell 10 in an inserting mode, and the lower end face of the first filter element is abutted against the upper end face of the first limiting step 11;
and the second filter element 30 is arranged inside the filter element shell 10 in an inserting mode, and the lower end face of the second filter element is flush with the lower end face of the filter element shell 10.
In this embodiment, the multifunctional composite filter element mainly includes a filter element housing, a first filter element and a second filter element, which are generally applied to a water purification device, especially a water purification cup.
The filter element shell is provided with a hollow inner cavity, and an annular first limiting step is arranged in the inner cavity. The lower end of the first filter element is arranged in the filter element shell in an inserting mode, and the lower end face of the first filter element is abutted to the upper end face of the first limiting step in the filter element shell. The second filter core is also through the whole inside that sets up at this filter core casing of grafting mode, and this second filter core is located the below of first filter core, and its lower terminal surface flushes with the lower terminal surface of filter core casing.
When utilizing this multi-functional composite filter core to treat filterable water and purifying, under the effect of gravity, rivers top-down passes through first filter core and second filter core in proper order, and the filter media in first filter core and the second filter core carries out effective filtration to impurity, microorganism, heavy metal, organic matter etc. in the aquatic respectively, can obtain clean drinking water fast. Compared with the prior art, the filter core is single, and the two filter cores can achieve better filtering effect.
In addition, after the splicing is completed, the outer side surface of the lower end of the first filter element is tightly attached to the inner side surface of the interior of the filter element shell, and meanwhile, the outer side surface of the second filter element is also tightly attached to the inner side surface of the interior of the filter element shell.
After setting up like this, can make the water of treating filteration filter through first filter core and second filter core completely, can prevent effectively that the water of not filteration from flowing out in the clearance between first filter core or second filter core and the filter core casing, make the water of treating filteration filter incompletely, can not reach the purification requirement.
After using a period of time, filter media life in first filter core or the second filter core expires, when needing to carry out the filter core change, can with filter media life expiring filter core alone take out change can, and can not influence the normal use of other filter cores that life did not expire, can make the filter media thing in the filter core make the best use of, can not cause the waste, effectively reduced user's the cost of changing the core. Simultaneously, this multi-functional composite filter's simple structure, convenient to use, the filter core is changed easily.
Preferably, the first filter element 20 is an ultrafiltration membrane filter element made of hydrophilic non-pressure hollow fiber membrane filaments.
Specifically, the first filter element is preferably configured as an ultrafiltration membrane filter element, and the ultrafiltration membrane filter element is made of hydrophilic non-pressure hollow fiber membrane filaments. The ultrafiltration membrane filter element can automatically filter without pressure difference, and can effectively filter fine impurities and pathogenic microorganisms in water.
The ultrafiltration membrane filter element has good filtering effect and longer service life, and the normal service life of the ultrafiltration membrane filter element can reach about 6 months without frequent replacement.
During assembly, the ultrafiltration membrane filter element has certain hardness, the lower end of the ultrafiltration membrane filter element is pressed in from the upper part of the filter element shell, and the lower end of the ultrafiltration membrane filter element is pressed to a first limiting step inside the filter element shell.
Preferably, the second filter element 30 is a carbon fiber block filter element, and the carbon fiber block filter element is made of carbon nanofiber material.
Specifically, the second filter element preferably adopts a carbon fiber block filter element, and the carbon fiber block filter element is made of carbon nanofiber materials. This carbon fiber block filter core has compound in the processing preparation and has hindered a plurality of high-efficient water purification materials such as, get rid of antibiotics, has formed nanometer carbon fiber, can increase the micropore of carbon fiber by a factor, has improved nanometer carbon fiber material's adsorption efficiency, can effectively filter harmful substance such as organic matter, heavy metal, pesticide residue, alga, colloid, antibiotic in aquatic, still has very strong decoloration and gets rid of the peculiar smell ability. Meanwhile, the material has large contact area with water and high filtering speed.
Because the limitation of filter core volume itself, the change time of this carbon fiber block filter core is about 1 month time generally, so with its setting in filter core casing below, it is more convenient during the change.
During assembly, the carbon fiber block filter element is arranged from the bottom of the filter element shell due to certain softness, and then is lightly pressed into the filter element shell to be flush with the lower end face of the filter element shell.
Among the prior art, the water purification cup filter core commonly used adopts the loose carbon of granule as filter core material usually, can go out black water during the use, and the water capacity is little, and the life-span is short, and simultaneously the volume size is big, and weight is heavy, not portable. Therefore, the multifunctional composite filter element in the embodiment adopts two filter elements to filter simultaneously, and the second filter element is preferably made to adopt a carbon fiber block filter element, so that the volume size is reduced, and a better filtering effect can be achieved.
Preferably, a first sealing groove is formed in the outer side surface of the lower end of the first filter element 20, and a first O-ring 21 is arranged in the first sealing groove.
Specifically, set up first seal groove at the lower extreme lateral surface of first filter core, set up first O type sealing washer in the first seal groove, can further prevent not flowing in the clearance between first filter core and the filter core casing of filterable water follow to the messenger treats filterable water and filters completely in first filter core, finally reaches the purification requirement.
Referring to fig. 2 and 3, an embodiment of the present invention discloses a water purification cup, which includes a cup body 40, an inner container 50, and a multifunctional composite filter element according to any one of the above embodiments; the upper end of the cup body 40 is provided with an opening, the inner container 50 is arranged in the cup body 40, the upper end part of the inner container 50 is sleeved at the opening of the cup body 40, and the lower end of the inner container 50 is connected with the multifunctional composite filter element.
In this embodiment, the water purification cup includes a cup body and an inner container, and further includes the multifunctional composite filter element according to any one of the above embodiments, so that the water purification cup can also achieve the technical effects that the multifunctional composite filter element according to any one of the above embodiments can achieve, and reference may be made to the foregoing description.
The upper end of the cup body is provided with an opening, and the lower end of the cup body is closed and is used for containing filtered water. The inner container is arranged in the cup body, the upper end part of the inner container is sleeved at the opening of the cup body, and the lower end of the inner container is connected with the multifunctional composite filter element. The upper end of this inner bag also is provided with the water inlet, and the water that treats the filtration is poured into from the water inlet of inner bag, then through its lower extreme connection during multifunctional composite filter fully filters the back and flows to the cup body, can accomplish the filtering process of treating filterable water.
During assembly, the multifunctional composite filter element is arranged at the lower part of the liner, the liner with the multifunctional composite filter element is arranged in the cup body, and the upper end part of the liner is sleeved at the opening of the cup body.
It should be noted that, for simplicity of illustration, the cup body is not shown in the exploded structure diagram of fig. 3, and only the internal structure of the cup body is shown.
Preferably, the lower end of the inner container 50 is provided with a mounting opening 51, an annular second limiting step 12 is further arranged inside the filter element shell 10, and the second limiting step 12 is located above the first limiting step 11; the mounting opening 51 is arranged inside the filter element shell 10 in an inserting mode, and the outer side surface of the mounting opening 51 is tightly attached to the inner side surface, located above the second limiting step 12, inside the filter element shell 10.
Specifically, in order to facilitate the installation of the inner container and the multifunctional composite filter element, an inward-contracting installation opening is formed in the lower end of the inner container, the size of the installation opening is larger than that of the first filter element, meanwhile, an annular second limiting step is arranged inside the filter element shell, and the second limiting step is located above the first limiting step. The installing port of inner bag sets up in the inside top of filter core shell through the grafting mode, and the inner bag holds first filter core inside this moment.
After the splicing is finished, the outer side surface of the mounting opening is tightly attached to the inner side surface of the filter element shell, which is positioned above the second limit step, so that unfiltered water can be effectively prevented from flowing out of the cup body from the gap between the mounting opening and the filter element shell.
Preferably, the outer side surface of the mounting opening 51 is provided with a second sealing groove, and a second O-ring 52 is arranged in the second sealing groove.
Specifically, the outer side surface of the mounting opening is provided with a second sealing groove, and a second O-shaped sealing ring is arranged in the second sealing groove, so that unfiltered water can be further prevented from flowing out of a gap between the mounting opening and the filter element shell, and the water to be filtered can be filtered through the multifunctional composite filter element connected with the lower end of the inner container, and finally the purification requirement is met.
Preferably, the water outlet nozzle 60 is further included, an inner side surface of an upper end of the water outlet nozzle 60 is provided with an inner thread 61, an outer side surface of a lower end of the filter element shell 10 is correspondingly provided with an outer thread 13, and the water outlet nozzle 60 is in threaded connection with the outer side of the lower end of the filter element shell 10 through the inner thread 61 and the outer thread 13.
Specifically, in order to facilitate the outflow of water purified by the multifunctional composite filter element, the water purification cup further comprises a water outlet nozzle.
The lower end of the water outlet nozzle is contracted, the inner side surface of the upper end of the water outlet nozzle is provided with an internal thread, the outer side surface of the lower end of the filter element shell is correspondingly provided with an external thread, and the upper end of the water outlet nozzle is in threaded connection with the outer side of the lower end of the filter element shell through the internal thread and the external thread.
During assembly, the internal thread on the inner side surface of the upper end of the water outlet nozzle is screwed on the external thread on the outer side surface of the lower end of the filter element shell, so that the water outlet nozzle is arranged at the lower end of the multifunctional composite filter element.
Preferably, there is a gap between the spout 60 and the cup body 40.
Specifically, a gap is reserved between the water outlet nozzle and the bottom of the cup body, so that water to be filtered poured from the inner container can be conveniently filtered by the multifunctional composite filter element and then flows out of the cup body.
To sum up, the embodiment of the utility model provides a multi-functional composite filter element and water purification cup, through inside first filter core and the second filter core that has set up the relatively independent of structure at filter shell, and first filter core and second filter core have adopted the filter media of different functions respectively, like this when the filter media life in one of them filter core expires, can change just this filter core alone, and can not influence the normal use of other filter cores that life does not expire, can make the best use of filter media thing in the filter core, can not cause the waste, user's the cost of trading the core has effectively been reduced. Simultaneously, this multi-functional composite filter core and water purification cup simple structure, convenient to use, the filter core is easily changed.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are the directions or positional relationships shown in the drawings, or the directions or positional relationships usually placed when the products of the present invention are used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A multi-functional composite filter element, comprising:
the filter element shell is internally provided with an annular first limiting step;
the lower end of the first filter element is arranged in the filter element shell in an inserting mode, and the lower end face of the first filter element is abutted to the upper end face of the first limiting step;
and the second filter element is arranged inside the filter element shell in a splicing mode, and the lower end face of the second filter element is flush with the lower end face of the filter element shell.
2. The multifunctional composite filter element according to claim 1, wherein the first filter element is an ultrafiltration membrane filter element, and the ultrafiltration membrane filter element is made of hydrophilic non-pressure hollow fiber membrane filaments.
3. The multifunctional composite filter element according to claim 1, wherein the second filter element is a carbon fiber block filter element made of carbon nanofiber material.
4. The multifunctional composite filter element according to claim 1, wherein a first sealing groove is formed in the outer side surface of the lower end of the first filter element, and a first O-shaped sealing ring is arranged in the first sealing groove.
5. A water purification cup is characterized by comprising a cup body, an inner container and the multifunctional composite filter element as claimed in any one of claims 1 to 4;
the multifunctional composite filter comprises a cup body and is characterized in that an opening is formed in the upper end of the cup body, the inner container is arranged in the cup body, the upper end of the inner container is sleeved at the opening of the cup body, and the lower end of the inner container is connected with the multifunctional composite filter element.
6. The water purification cup as claimed in claim 5, wherein the lower end of the inner container is provided with a mounting port, the inside of the filter element shell is further provided with an annular second limiting step, and the second limiting step is positioned above the first limiting step;
the installing port is arranged inside the filter element shell in an inserting mode, and the outer side face of the installing port is tightly attached to the inner side face, located above the second limiting step, inside the filter element shell.
7. The water purification cup of claim 6, wherein a second sealing groove is formed in the outer side surface of the mounting opening, and a second O-shaped sealing ring is arranged in the second sealing groove.
8. The water purification cup according to any one of claims 5 to 7, further comprising a water outlet nozzle, wherein an inner side surface of the upper end of the water outlet nozzle is provided with an inner thread, an outer side surface of the lower end of the filter element shell is correspondingly provided with an outer thread, and the water outlet nozzle is connected to the outer side of the lower end of the filter element shell through the inner thread and the outer thread.
9. The water purification cup as recited in claim 8 wherein a gap exists between the spout and the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021906078.7U CN213475563U (en) | 2020-09-03 | 2020-09-03 | Multifunctional composite filter element and water purification cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021906078.7U CN213475563U (en) | 2020-09-03 | 2020-09-03 | Multifunctional composite filter element and water purification cup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213475563U true CN213475563U (en) | 2021-06-18 |
Family
ID=76416754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021906078.7U Active CN213475563U (en) | 2020-09-03 | 2020-09-03 | Multifunctional composite filter element and water purification cup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213475563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087530A1 (en) * | 2021-10-13 | 2023-05-25 | 富商国际股份有限公司 | Method for using hollow fiber filter element |
-
2020
- 2020-09-03 CN CN202021906078.7U patent/CN213475563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087530A1 (en) * | 2021-10-13 | 2023-05-25 | 富商国际股份有限公司 | Method for using hollow fiber filter element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2052200A1 (en) | Iodine resin/carbon water purification system | |
| CN212151806U (en) | Composite filter element | |
| CN213475563U (en) | Multifunctional composite filter element and water purification cup | |
| CN114349193B (en) | Portable high-purification-degree water purifier | |
| CN214344674U (en) | Filter element with water storage function | |
| JP3242395B2 (en) | Water purifier | |
| CN211999102U (en) | Compound filter element group spare and water purification system | |
| CN111170488A (en) | Composite filter element system with air bag | |
| CN109019936A (en) | A kind of filter device for water purifier | |
| CN211069319U (en) | Filter element for water filtering kettle and water filtering kettle with same | |
| CN113929160A (en) | Filter core, water purification system and purifier | |
| CN216005388U (en) | Drinking water membrane separation, filtration and adsorption integrated device | |
| CN211339048U (en) | Water purifier filter element | |
| CN217051668U (en) | Tap water prefilter | |
| CN211896325U (en) | Integrated water purifying equipment | |
| CN213610061U (en) | Small filter with sewage draining outlet in eccentric design | |
| CN214597678U (en) | Filter element for water storage | |
| CN219209217U (en) | Water purifier with multiple filter elements convenient to replace | |
| CN217939276U (en) | Pure water purifying device | |
| CN217202300U (en) | Waterway system and filter | |
| CN212067931U (en) | Water purifier filter element | |
| CN219596032U (en) | Water treatment purifying equipment | |
| CN214360581U (en) | Single preposed and single postpositioned composite filter element | |
| CN215480096U (en) | Water purifier is with unifying filter core structure more | |
| CN214654058U (en) | Water purifier with simple core replacement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |