JP4125461B2 - Water purifier cartridge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water purifier cartridge that can be used interchangeably with a water purifier that filters and purifies tap water.
[0002]
[Prior art]
Various water purifiers for filtering tap water or the like with a filter medium such as activated carbon have been proposed. Similarly, various cartridges for water purifiers used in water purifiers have been proposed.
[0003]
For example, in a water purifier disclosed in Japanese Patent Application Laid-Open No. 08-71541, raw water such as tap water is supplied from the inflow path into the case, so that the raw water passes through the filter. And impurities, such as a residual chlorine and a trihalomethane, are removed in this filter, and it is discharged | emitted as purified water from an outflow channel after that, and can be utilized as drinking water etc.
[0004]
[Problems to be solved by the invention]
In the description of this specification, the region between the outer periphery of the filter and the case inner wall is referred to as a “side region”, and the region between the upper end of the filter and the case lid is referred to as an “upper region”. A region between the lower end of the vessel and the inner wall of the case is referred to as a “lower region”.
[0005]
In the conventional water purification cartridge, since raw water is always supplied from the inflow port in the upper region, the raw water in the upper region easily flows out to the side region. On the other hand, in the lower region, since the lower end has a closed shape, the outflow / inflow path of the raw water is limited to the side region. Therefore, in the lower region, the outflow path and the inflow path of the raw water are the same path, and it is difficult for the raw water to flow in and out.
[0006]
That is, inflow from the inlet and outflow to the side region in the upper region, inflow from the upper region and outflow into the filter in the side region, and inflow and outflow in the lower region are both poor. That was recognized.
[0007]
Therefore, there has been a problem that the raw water stays in the lower region for a long time in the water purifier. And since raw water stayed in the lower area for a long period of time, germs and the like easily propagated in the lower area, which was a problem in terms of hygiene management.
[0008]
The objective of this invention is providing the cartridge for water purifiers which can prevent propagation of germs etc. of the raw water retention part in a water purifier.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, the upper and lower ends of a cylindrical filter are closed by a pair of upper and lower lids, and a support portion having an outflow path is provided in the upper lid body so that the filter can be replaced in the water purifier. In the cartridge for water purifier to be mounted, a cylindrical hollow portion surrounded by the filtering portion of the filter and a pair of upper and lower lids is provided, and a communication hole is provided in the pair of upper and lower lids so as to correspond to the hollow portions. In addition, there is provided a communication path through which raw water supplied by penetrating a hollow member between both communication holes flows out from the upper region to the lower region, and the raw water flows from the side region into the filtration part of the filter, The gist of this is that it passes through the cavity and flows out from the outflow passage of the upper lid .
[0010]
A communication path formed by penetrating a hollow member between communication holes provided in the upper and lower lids of the filter serves to communicate the lower region and the upper region. Accordingly, a new raw water outflow / inflow path is provided in the lower region, and the flow of the raw water in the water purifier can be changed.
[0011]
That is, the raw water flows from the upper region to the lower region through the connecting path, and accordingly flows out from the lower region toward the side region. Accordingly, the communication path functions as a new inflow / outflow path of the raw water in the lower region, and serves to increase the inflow / outflow amount of the raw water in the lower region. In addition, by providing a communication path in the hollow portion in the filter, it is possible to easily provide a communication path, and without affecting the purification mechanism that exhibits the original function as a filtering device. By efficiently utilizing this space, the inflow and outflow amount of raw water in the lower region can be increased.
[0012]
According to a second aspect of the present invention , a cylindrical filtration part is accommodated and arranged concentrically in accordance with the annular protrusion between a pair of upper and lower lid bodies having an annular protrusion on the inner surface, and the opening of the filtration part is arranged vertically. A water purifier cartridge comprising a cylindrical filter closed by a pair of lids, provided with a support part having an outflow path in the lid on the upper side, and mounted in a water purifier so as to be replaceable. A pair of upper and lower lids are provided with connecting holes so as to correspond to the inside of the cylindrical cavity surrounded by the pair of upper and lower lids, and a hollow member having both upper and lower ends opened between the two connecting holes. One or more communication paths through which the raw water supplied from the upper region flows out from the upper region to the lower region are formed, the raw water flows from the side region into the filtration part of the filter, and the purified water passes through the cavity part and enters the upper side. It is summarized in that flowing out of the outflow channel of the lid .
[0013]
By forming a communication path through which the raw water supplied by penetrating a hollow member opened at both upper and lower ends between the communication holes provided in the upper and lower pair of lids of the filter flows out from the upper region to the lower region, The connecting path connects the lower region and the upper region. Thereby, the outflow / inflow path of a new raw | natural water will be provided in a lower area | region, and the flow of the raw | natural water in a water purifier can be changed. That is, the raw water flows from the upper region to the lower region through the connecting path, and accordingly flows out from the lower region toward the side region. Therefore, the communication path functions as a new inflow path of the raw water in the lower region, and functions to increase the inflow / outflow amount of the raw water in the lower region.
Moreover, by providing a communication path in the cavity in the filter, it is possible to easily provide a communication path, and without affecting the filtration section as a purification mechanism that exhibits the original function as a filtration device. By efficiently utilizing the space in the filter, the amount of raw water flowing in and out in the lower region can be increased. Further, the annular protrusions on the inner surfaces of the pair of lids can accommodate and arrange the filtration part substantially concentrically according to the shape thereof, so that the filtration part can be easily fixed and the cavity part is simply provided. Will be able to.
[0014]
The gist of the invention described in claim 3 is that, in the invention described in claim 2, communication protrusions are respectively provided on the inner surfaces of both lids provided with the communication holes .
[0015]
By providing the communication projection and press-fitting both ends of the hollow member into the upper and lower communication projections, the communication path is penetrated through the hollow portion, so that the communication path can be easily defined.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, the water purifier includes a bottomed cylindrical case 11, a case lid 12 that seals the upper end opening of the case 11, a stopper 13 for fixing the case lid 12 to the case 11, and an internal And a filter 14 installed in the.
[0020]
Note that the case 11 includes a packing 15 for maintaining watertightness and a convex portion 16 for installing the packing at a joint portion with the case lid 12. In addition, the case lid 12 includes an inflow port 17 through which raw water flows in and an outflow port 18 through which filtered purified water flows out.
[0021]
Inside the case 11, the filter 14 is suspended and fixed by screwing the male screw 29 of the support portion 23 provided on the lid 19 a with the female screw 30 provided on the outlet 18 of the case lid 12. . At that time, certain intervals (upper region, side region, lower region) are provided between the upper end, outer periphery, and lower end of the filter 14 and the corresponding inner wall or case lid 12 of the case 11. Yes. Therefore, the raw water supplied from the inflow port 17 is injected into each of these regions, and the inside of the case 11 is filled with the raw water.
[0022]
Next, as shown in FIG. 2, the filter 14 is configured by combining a pair of upper and lower lid bodies 19 a and 19 b, a filtration unit, and a communication path 22. Moreover, a filtration part is comprised by a pair of cover body 19a, 19b, the inner filter 20, the outer filter 21, and the filter medium which consists of granular activated carbon.
[0023]
The inner filter 20 and the outer filter 21 are formed of a porous material, and are accommodated and disposed substantially concentrically in the filter 14 according to the annular protrusions 28a provided on the inner surfaces of the pair of lids 19a and 19b. Yes.
[0024]
Since the inner and outer filters 20 and 21 are accommodated and arranged concentrically with different diameters, a filter medium filled with granular or powdered activated carbon between the inner filter 20, the outer filter 21, and the pair of lids 19a and 19b. An enclosing portion 24 is formed. A cavity 25 is formed between the inner filter 20 and the pair of lids 19a and 19b.
[0025]
As shown in FIG. 3, the support portion 23 provided on the lid 19 a includes an outflow path 31 that communicates with the outflow port 18.
As shown in FIGS. 3 to 4, communication holes 26 for providing the communication paths 22 are provided at appropriate positions of the pair of upper and lower lid bodies 19 a and 19 b at positions corresponding to the hollow portions 25 of the filter 14. . In addition, communication protrusions 28b are provided on the inner surfaces of the lids 19a and 19b provided with the communication holes 26, respectively. Then, both end portions of the hollow member 27 are press-fitted into the upper and lower connecting projections 28b. As a result, the communication path 22 is penetrated in a state of being formed in the cavity 25, and the upper and lower ends of the communication path 22 are opened upward and downward in the filter 14. .
[0026]
The raw water supplied from the inflow port 17 fills the upper region, the side region, the lower region, and the connecting path 22 in the case 11 body. Then, the raw water in the side region moves into the filter 14. Thereafter, the filter passes through the outer filter 21, the filter medium enclosing part 24, the inner filter 20, and the cavity part 25 sequentially. Here, when the activated carbon exhibits a function of adsorbing impurities such as residual chlorine and trihalomethane, the filter 14 has an action of purifying raw water.
[0027]
And the connection path 22 which open | released both upper and lower ends between the pair of upper and lower cover bodies 19a and 19b of the filter 14 is defined, so that the connection path 22 communicates the lower region and the upper region. Thereby, the outflow / inflow path of a new raw | natural water will be provided in a lower area | region, and the flow of the raw | natural water in a water purifier can be changed.
[0028]
That is, the raw water flows from the upper region to the lower region through the connecting path, and accordingly flows out from the lower region toward the side region. Therefore, the communication path 22 functions as a new inflow path of the raw water in the lower region, and functions to increase the inflow / outflow amount of the raw water in the lower region.
[0029]
Further, by providing the communication path 22 in the hollow portion 25 in the filter 14, the communication path 22 can be easily provided without affecting the filtration section having a filtration function. Therefore, it is possible to increase the inflow / outflow amount of the raw water in the lower region by efficiently using the space in the filter 14 without affecting the purification mechanism that exhibits the original function as the filtration device. it can.
[0030]
Furthermore, since the annular protrusions 28a provided on the inner surfaces of the pair of lids 19a and 19b can accommodate and arrange the inner filter 20 and the outer filter 21 in a substantially concentric manner according to the shape, the inner and outer filters 20 can be easily arranged. 21 can be fixed, and the filter medium enclosing portion 24 and the cavity portion 25 can be integrally provided.
[0031]
The above-described embodiment has the following effects.
-By providing the communication path 22, a new inflow path of raw water is created in the case 11, and the inflow and outflow amount of the raw water in the lower region can be increased.
[0032]
-By providing the communication path 22 in the hollow part 25, the space of the filter 14 can be utilized efficiently. The hollow portion 25 is not a portion that exhibits the filtration function but a portion that flows out the purified raw water, and thus uses this space.
[0033]
-By providing the communication path 22 in the cavity 25, the communication path can be easily provided without affecting the filtration section that constitutes the original operation mechanism as the filtration device, and the raw water in the lower region The amount of inflow and outflow can be increased.
[0034]
Since the communication holes 26 are provided in the pair of lids 19a and 19b, and the communication path 22 is provided by penetrating the hollow member 27 between the communication holes 26, the communication paths 22 can be easily defined. .
[0035]
-Since the communication path 22 is penetrated into the hollow portion 25 by providing the communication projection 28b and press-fitting both ends of the hollow member 27 into the upper and lower communication projections 28b, the communication path 22 is simply formed. can do.
[0036]
The embodiment of the present invention can be modified as follows.
-Change the space | interval of each cyclic | annular protrusion 28a provided in a pair of cover body 19a, 19b according to a use application. In this way, by changing the volume of the filter medium enclosure 24, it is possible to fill an arbitrary amount of filter medium suitable for the required amount of clean water used.
[0037]
As shown in FIG. 5, the filtration part is constituted by a fibrous activated carbon filter 32. The fibrous activated carbon filter 32 is obtained by holding granular or powdery activated carbon on a shape-maintained fiber. The fibrous activated carbon filter 32 has functions of the inner filter 20, the outer filter 21, and a filter medium made of granular activated carbon. And since the number of members which comprise the filter 14 can be reduced by comprising a filtration part with the fibrous activated carbon filter 32, the filter 14 can be provided easily.
[0038]
-Install a filter medium such as a hollow fiber membrane in the cavity 25. By newly installing a filter medium such as a hollow fiber membrane in the hollow portion 25, the purification function of the filter 14 can be further improved.
[0039]
A plurality of stages of the inner filter 20 and the outer filter 21 are provided in the filter 14. By using a multiple filter, a plurality of filter medium enclosures 24 can be provided, and the purification function can be further improved.
[0040]
Next, technical ideas other than the invention described in the claims that can be grasped from the above embodiment will be described below together with the effects thereof.
The filter section includes an outer filter 21 formed of a porous material, an inner filter 20 formed of the same porous material, and a filter medium such as granular or powdery activated carbon filled between the inner and outer filters 20 and 21. The water purifier cartridge according to claim 1, wherein the water purifier cartridge is configured as described above. With such a configuration, the filter medium enclosure part 24 can be easily provided.
[0041]
The cartridge for water purifier according to any one of claims 1 to 2, wherein the filtration part is composed of a fibrous activated carbon filter 32. The fibrous activated carbon filter 32 has a function that the filter medium enclosing part 24 included in the inner and outer filters 20 and 21 can be easily provided and a filtering function that the granular activated carbon enclosed in the filter medium enclosing part 24 has. Therefore, when the filtration part is constituted by the fibrous activated carbon filter 32, the number of members constituting the filter 14 can be reduced, so that the filter 14 can be easily provided.
[0042]
The said pair of cover bodies 19a and 19b are provided with the cyclic | annular protrusion 28a which can fix the inner filter 20 and the outer filter 21 in the inner surface, The purified water in any one of Claims 1-2 characterized by the above-mentioned. A dexterous cartridge. With such a configuration, the inner filter 20 and the outer filter 21 can be easily fixed, and the shape retaining property of the filter medium enclosure 24 can be improved.
[0043]
The communication path 22 is provided with a communication hole 26 and a communication projection 28b in the upper and lower lids 19a and 19b, respectively, and a hollow member 27 is press-fitted between the communication projections 28b, thereby forming a partition with the cavity 25. The cartridge for water purifiers according to any one of claims 1 to 2, wherein the cartridge is used. By adopting such a configuration, the communication path 22 can be easily configured.
[0044]
3. At least one or more connecting passages 22 are formed in a cylindrical cavity 25 surrounded by the filtration part and the upper and lower lids 19a, 19b. The cartridge for water purifiers described in 1. With such a configuration, a new inflow path of raw water in the lower region can be provided, and the amount of inflow of raw water in the lower region can be increased.
[0045]
【The invention's effect】
According to the inventions described in claims 1 to 3 , it is possible to prevent the propagation of germs and the like in the raw water retention portion in the water purifier , and it is possible to simply provide the communication path in the cartridge for the water purifier. .
[Brief description of the drawings]
FIG. 1 is a side view of a water purifier cartridge. FIG. 2 is a cross-sectional view of a water purifier cartridge. FIG. 3 is a plan view, a side view, and a bottom view of an upper lid body. Bottom view [Fig. 5] Cross section of water purification cartridge using fibrous activated carbon filter [Explanation of symbols]
14 ... filter, 19a, 19b ... lid, 22 ... communication path, 25 ... cavity, 28a ... annular protrusion.

Claims (3)

In the cartridge for the water purifier, the upper and lower ends of the cylindrical filter are closed by a pair of upper and lower lids, and a support part having an outflow path is provided in the upper lid, and the water purifier cartridge is replaceably mounted .
A cylindrical hollow portion surrounded by the filtration portion of the filter and the pair of upper and lower lids is provided, and a communication hole is provided in the pair of upper and lower lids so as to correspond to the hollow portion, and a hollow is formed between the communication holes. A connecting path through which raw water supplied by penetrating the member flows out from the upper region to the lower region is provided,
Water purifier cartridges raw water flows into the filtration portion of the filter from the side areas, clean water is characterized in that the outflow from the outflow path of the upper side of the lid through the cavity. Between a pair of upper and lower lid bodies provided with an annular protrusion on the inner surface,
The cylindrical filtration part is accommodated and arranged substantially concentrically according to the annular protrusion,
Purified water that is composed of a cylindrical filter in which the opening of the filtration unit is closed with a pair of upper and lower lids, and that is provided with a support unit having an outflow path in the upper lid and is exchangeably mounted in the water purifier. In dexterous cartridges,
A pair of upper and lower lids are provided with communication holes so as to correspond to the inside of the cylindrical cavity surrounded by the filtration part and the upper and lower pair of lids, and a hollow member having both upper and lower ends opened between the two communication holes is provided. By forming one or more connecting paths through which raw water supplied by penetrating flows from the upper region to the lower region,
Water purifier cartridges raw water flows into the filtration portion of the filter from the side areas, clean water is characterized in that the outflow from the outflow path of the upper side of the lid through the cavity. The cartridge for water purifier according to claim 2, wherein communication protrusions are respectively provided on the inner surfaces of both lids provided with the communication holes .

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