JP4579747B2 - Water purifier cartridge and water purifier using the same - Google Patents

Description

  The present invention relates to a water purifier cartridge for purifying water for beverages and a water purifier using the same, and more particularly, to use at least an activated carbon filter as a water purifying filter, and to a water purifying filter by the weight of water poured into the water purifier. It is related with the cartridge suitable for what is called a pot-type water purifier which can pass purified water and can store purified water in the container installed in the cartridge lower part, and a water purifier using the same.

  In recent years, water purifiers have begun to spread widely in ordinary households. As a home water purifier, in addition to a set-up water purifier, a water purifier with a container that is convenient for carrying and refrigerated storage, a so-called pot type (or drip type, hereinafter referred to as a “pot type” in this specification). There is a water purifier. Such a pot-type water purifier is a container installed in the lower part, which is charged with water from the upper inlet, passes through a water purification filter such as activated carbon in the water purifier installed in the cartridge by its own weight. The mainstream is water that can be purified without using electric power or the pressure of water flow, such as storing stored water. However, since the pressure applied to the water purification filter of the water purifier is only the pressure due to the weight of the charged water, only a low pressure of about 0.1 to 2 kPa can be received as the water pressure. For this reason, there exists a problem that a water purification process takes time compared with the type of water purifier which passes a water purification filter with the pressure of an electric power or a water flow. Therefore, various studies have been made on pot-type water purifiers for shortening the time for water purification treatment.

For example, in Patent Document 1, the water purification cartridge has a bottomed cylindrical shape, a fibrous adsorbing material is inserted into the cartridge, and an air discharge cylinder is provided in the axial direction of the fibrous adsorbing material to discharge the air in the cartridge. By doing so, it tries to shorten the water treatment time.
JP-A-11-207320

  On the other hand, activated carbon is widely known as a useful material for a water purification filter that effectively removes impurities contained in water, and activated carbon is used as a constituent material of the water purification filter in pot-type water purifiers.

  However, when a pot type water purifier using activated carbon as a water filter (referred to as “filter medium” in Patent Document 1) is manufactured using conventional techniques, for example, the technique of Patent Document 1 described above, water purification is particularly effective. When a new activated carbon filter is purchased or immediately after the water purifier cartridge is replaced, when the activated carbon filter, which is a purified water filter, is in a new state and comes into contact with water for the first time, a stagnant air layer will be formed at the bottom of the activated carbon filter. There is. For this reason, even if the above technique is used, it takes time for water purification, and sometimes the treated water does not fall for several tens of minutes after the water is added.

  The problem to be solved by the present invention is that when at least an activated carbon filter is used as a water purification filter, even if the activated carbon is in a new state, a water purifier cartridge and a pot type that can quickly process water injected into the water purifier Is to provide a water purifier.

  In the present invention, the bottom of the air discharge cylinder for discharging the staying air upward is fixed to the mesh / slit filter disposed at the lower part of the activated carbon filter, and the shape of the mesh / slit filter is changed to the peripheral edge thereof. From the above, the main solution is a technology that can effectively discharge the staying air present in the lower part of the activated carbon filter by making the shape inclined upward toward the bottom surface of the air discharge cylinder.

  In the water purifier to which the water purifier cartridge of the present invention is attached, even when activated carbon is used for the water purifying filter, the water purifying treatment time at the time of new use or cartridge replacement can be shortened.

  The above effect is effective because the air pressure of the staying air near the lower air passage hole of the air discharge cylinder can be increased by inclining the second mesh / slit filter upward from the peripheral edge toward the center. Demonstrated.

  Further, the net part of the first net / slit filter of the water purifier cartridge is a knitted net, preferably a knit net, so that the activated carbon particles do not flow out and the net part repels water. Water can pass through without any problem.

  In addition, if a space is provided at the top of the activated carbon filter and the volume ratio of the space to the volume of the activated carbon filter is set to an appropriate volume ratio, the suspended air in the water can be generated by utilizing the floating phenomenon of the activated carbon under consideration. Since it can be set as the pressure to extrude, the stagnant air discharge effect of the present invention can be further increased.

  Moreover, this invention can be used also when providing a 2nd or more water purification filter other than an activated carbon filter as a water purification filter. When the second water purification filter is provided in the lower part of the activated carbon filter, the second water purification filter component is not provided in the lower air passage hole of the air discharge cylinder so as to leak out from the air discharge cylinder. It is necessary to provide a filter (third mesh / slit filter). Even in this case, the effect of the present invention can be achieved by making a cut in any part of the mesh portion of the third mesh / slit filter.

  In addition, the air discharge cylinder includes an inner cylinder and an outer cylinder positioned in contact with the outer side wall of the inner cylinder, and the outer cylinder moves in the vertical direction along the side surface of the inner cylinder, so that the entire air discharge cylinder When the water purifier cartridge is sold, it can be sold in a small volume, which is advantageous for carrying.

  Moreover, since this invention is invention for the pot type water purifier which passes a water purification filter with dead weight of water, it is most useful in the pot type water purifier using the cartridge for water purifiers of this invention.

  Hereinafter, the present invention will be specifically described with reference to the drawings. However, the present invention is not limited to the illustrated embodiment. FIG. 1 is a schematic view of a vertical cross section shown for explaining the contents of the water purifier cartridge 1 of the present invention.

  The water purifier cartridge of the present invention is a water purifier cartridge 1 used for a water purifier 9 of a type in which the liquid is purified by passing through a water purifying filter existing inside the cartridge only by its own weight. The basic structure of the interior of the cartridge for water purifiers of this type has a liquid inlet 2 at its upper part, a liquid outlet 3 at its lower part, and between the liquid inlet 2 and the liquid outlet 3. It has a water purification filter 4 for purifying liquid. However, as long as at least the basic configuration is provided, other additional components may be included.

  The internal structure of the water purifier cartridge 1 of the present invention includes a first mesh / slit filter 51, an activated carbon filter 41 as a water purification filter 4 disposed below the first mesh / slit filter, and the space. The bottom part is fixed to the second mesh / slit filter 52 and the second mesh / slit filter 52 arranged at the lower part of the part, and penetrates the activated carbon filter and the first mesh / slit filter 51. And at least an air discharge tube 6 extending upward from the liquid inflow portion 2.

  Further, when the second water purification filter is provided as the water purification filter 4 other than the activated carbon filter 41, the internal structure of the water purifier cartridge 1 of the present invention is the first mesh / slit filter 51 and the first mesh / slit. Activated carbon filter 41 as water purification filter 4 disposed at the lower part of filter 51, second mesh / slit filter 52 disposed at the lower part of activated carbon filter 41, and second mesh / slit filter 52 An air discharge cylinder 6 extending through the activated carbon filter 41 and the first mesh / slit filter 51 and extending above the liquid inflow portion 2, and a second mesh / slit filter 52. It has at least the 2nd water purification filter 42 arrange | positioned at the lower part. Figure 1 shows this aspect. In addition, when another water purification filter is further arrange | positioned under the 2nd water purification filter 42, since it can increase similarly, the aspect to which such a component was added is not excluded.

  The air discharge cylinder 6 according to the present invention includes a lower air passage hole 62 that discharges air below the activated carbon filter 41 and an upper air passage that discharges air in the air discharge cylinder 6 from above the liquid outflow portion 1 to the outside. The hole 61 is provided. For the frame of the water purifier cartridge 1, known materials that have been confirmed to be safe for beverage use can be used. Specifically, known heat such as ABS resin, AS resin, polyethylene resin, and polypropylene resin can be used. A plastic resin can be suitably used. A metal material such as stainless steel can also be used.

(Basic principle)
When the activated carbon filter 41 is new, the reason why the water purification speed of the water purifier takes time, and what principle can be used to solve this in the present invention will be described with reference to the drawings. In the figure, the black arrow indicates the flow of water, and the white arrow indicates the flow of air. Moreover, the dash mark (') next to the numeral indicates a component other than the mode of the water purifier cartridge of the present invention, such as the mode of the conventional water purifier cartridge.

  FIG. 2A is a vertical sectional view showing an outline of the interior of a conventional water purifier cartridge 1 ′. FIG. 2B is a schematic cross-sectional view schematically showing a phenomenon that occurs when water flows into an activated carbon cartridge in a conventional water purifier cartridge. The activated carbon contained in the new activated carbon filter 41 'is dried and adsorbs air. When water flows into the dried activated carbon from the liquid outlet 2 'as shown in FIG. 2 (a) and the water and activated carbon come into contact with each other, the activated carbon aggregates while releasing the adsorbed air. On the other hand, a part of the water further reaches the lower liquid outlet 3 '. The air released from the activated carbon forms a staying air layer 7 ′ between the wet activated carbon that has aggregated and the water film that has reached the liquid outlet. This situation is shown in FIG. Once the stagnant air layer 7 'is formed, it becomes difficult for water to pass between the stagnant air layers 7', so that the water purification time of the water purifier cartridge 1 'becomes longer.

  FIG. 3 (a) is a vertical sectional view showing an outline of the interior of the conventional water purifier cartridge 1 'provided with an air discharge tube 6'. FIG. 3 (b) is a schematic cross-sectional view schematically showing a phenomenon that occurs when water flows into the activated carbon cartridge in the water purifier cartridge of FIG. 3 (a). As a solution to the above problem, it seems that an air discharge cylinder 6 'may be provided below the activated carbon filter 41' as shown in FIG. However, even if the air discharge cylinder 6 ′ is provided, when the air discharge cylinder 6 ′ has a planar shape, if the lower air passage hole 62 ′ of the air discharge cylinder 6 ′ gets wet, the lower air passage hole 62 ′ may become wet. In some cases, a water film is formed and the air in the staying air layer 7 ′ cannot be excluded. That is, when the air discharge cylinder 6 ′ has a planar shape, the air pressure of the staying air layer 7 ′ is dispersed as shown in FIG. 3B, so that the pressure applied to the water film generated in the lower air passage hole 62 ′. Is small, and the air in the staying air layer 7 'cannot be excluded.

  Further, as shown in FIG. 3 (a), when a second water purification filter 42 'is further disposed under the activated carbon filter 41', the lower air passage is used to prevent the contents of the second water purification filter 42 'from blowing out. It is necessary to provide a third mesh / slit filter 53 ′ at the hole 62 ′. In this case, the presence of the mesh / slit filter 5 'makes it easier to form a water film on the mesh or slit of the mesh / slit filter, so the above-described adverse effect is further increased.

  FIG. 4 (a) is a vertical sectional view showing an outline of the inside of the water purifier cartridge 1 of the present invention. FIG. 4B is a schematic cross-sectional view schematically showing a phenomenon that occurs when water flows into the activated carbon cartridge in the water purifier cartridge of the present invention. In the present invention, even if a water film is generated in the lower air passage hole 62 by increasing the air pressure in the vicinity of the lower air passage hole 62 in order to smoothly discharge the air in the staying air layer 7 from the air discharge cylinder 5. This can be removed. As the means, first, as shown in FIG. 1 or FIG. 4 (a), the shape of the second mesh / slit filter 52 is moved upward from the periphery of the filter toward the installation site of the lower air passage hole 62 of the air discharge tube 6. Tilted. As a result, the pressure applied by the activated carbon filter 41 to the staying air layer 7 forms a flow of air upward through the portion where the lower air passage hole 62 of the second mesh / slit filter 52 is installed, and further through the air discharge cylinder 6. Is done. This situation is shown in FIG. When the air in the staying air layer 7 disappears, the activated carbon filter 41 descends due to the aspiration effect and a water channel is formed, so that the treated water can flow to the liquid outlet 3. This situation is shown in FIG.

  The effects of the present invention can be achieved with only the above means, but means such as increasing the amount of staying air can also be taken as auxiliary means. Specifically, the first mesh / slit filter 51 arranged on the top of the activated carbon filter 41 is devised so that water is repelled by the first filter and cannot reach the activated carbon filter 41. Prevented. In addition, an appropriate space 8 was provided above the activated carbon filter 41. This utilizes the phenomenon that activated carbon that has adsorbed air aggregates while floating in water. As the activated carbon floats, the volume of the staying air increases and the staying air pressure can be increased. Further, when the third mesh / slit filter 53 is provided in the lower air passage hole 62, a water film can be more easily formed on the mesh or slit, so that the third mesh / slit filter 53 is devised. Thus, the formation of a water film was prevented.

(Water purification filter)
The water purification filter 4 purifies the water that has passed through the filter. A material using activated carbon as a material constituting such a water purification filter 4 is referred to as an activated carbon filter 41. The activated carbon filter 41 referred to in the present invention is not limited to only activated carbon as a constituent material, but can be referred to as the activated carbon filter 41 in the present invention as long as the component having the highest content by volume is activated carbon. Since the purification of water by the water purification filter 4 is performed by bringing the substance constituting the water purification filter into contact with the water to be treated, the shape of the substance constituting the water purification filter 4 is preferably a particle shape.

  As shown in FIG. 1, in the present invention, in addition to the activated carbon filter 41, another water purification filter 4 can be provided. Examples of the constituent material used for the water purification filter 4 include ion exchange resin, fibrous activated carbon, nonwoven fabric filter, MF filter, UF filter, and NF filter. Also in the case of these constituent substances, in order to improve the water purification treatment high rate, it is necessary to increase the contact area with water, so that the shape is preferably a particle shape or a fiber shape.

(Air discharge tube)
FIG. 5A is a perspective view showing a uniform state of the air discharge tube 6 in the present invention. The air discharge cylinder 6 discharges residual air at the lower part of the activated carbon filter 41 to the upper part. Therefore, it is typically preferable to have a cylindrical shape like a chimney. The cylinder is preferably cylindrical in terms of handling and cost, but a rectangular cylinder can also be used. In addition, for example, the upper bottom portion and the lower bottom portion are hermetically sealed, and instead, at the side wall edge near the upper bottom surface / lower bottom surface, an air passage hole connecting the internal space of the cylinder and the outside is opened. In the present invention, even if the shape is not cylindrical, it is possible to obtain the effects of the present invention by the presence of the passage hole. It is included in the cylinder of the discharge cylinder 6. In short, the residual air existing in the vicinity of the lower air passage hole 62 of the air discharge tube 6 passes through the inside of the air discharge tube 6 through the lower air passage hole 62, and from above the liquid inflow portion 2 through the upper air passage hole 61. Any structure that can be discharged to the outside is acceptable.

  The material used for the air discharge tube 6 may be any material having a fixed shape, but since the outside of the side wall comes into contact with the water to be treated, at least the outside of the side wall does not elute harmful substances in the treated water. It is necessary to be. For example, a resin material, a metal material, a ceramic material, etc. can be mentioned. In particular, as well as the frame material of the cartridge 1 for the water purifier, a known thermoplastic resin or metal material such as stainless steel that is used according to the intended use of food containers such as ABS resin, AS resin, polyethylene resin, polypropylene resin, etc. Etc., it is safe and advantageous in terms of cost.

  Further, the upper air passage hole 61 of the air discharge tube 6 in the present invention covers the upper bottom portion of the air discharge tube 6 so that water does not accidentally flow into the air discharge tube 6 from above when water is poured. The upper air passage hole 61 can also be provided in the vicinity of the upper edge of the side wall of the air discharge tube 6 instead of the upper bottom portion. For the same purpose, a valve structure can be provided at the upper air passage hole 61 site. FIG. 5 (a) is an air discharge cylinder 6 in a state in which a valve structure is provided, and FIG. 5 (b) is an enlarged top view of the air discharge cylinder 6 in a state in which the valve 65 of the valve structure is opened. is there. With the valve structure, when air pressure is applied to the inside of the air discharge cylinder 6, the valve 65 opens upward and the air inside the air discharge cylinder 6 is discharged to the outside through the upper air passage hole 61. When not, since the valve 65 is closed, even when water is introduced from above, the water does not flow into the air discharge tube 6.

  Further, even when the air discharge cylinder 6 is subjected to water gravity or pulled, the air discharge cylinder 6 is placed on the outer side wall of the air discharge cylinder 6 so that the air discharge cylinder 6 does not fall out of the water purifier cartridge 1. A convex stopper 66 can also be provided.

  As shown in FIG. 5A, the air discharge cylinder 6 of the present invention comprises an inner cylinder 63 and an outer cylinder 64 positioned in contact with the outer side wall of the inner cylinder 63, and the outer cylinder 64 is the inner cylinder. By moving in the vertical direction along the side surface 63, the air discharge tube 6 as a whole can be expanded and contracted. By setting it as such a state, when selling the water purifier cartridge 1, it can be made into the state which the air discharge cylinder 6 was shortened for easy carrying. On the other hand, when the cartridge 1 is in use, the staying air can be discharged upward by extending the air discharge cylinder 6. Further, in such an extendable / contractible air discharge tube 6, an extendable / contractible guide can be provided so as to be able to extend and contract straight.

(Reticulated / slit filter)
The mesh / slit filter 5 in the present invention means a mesh filter or a slit filter. The mesh / slit filter 5 is provided so that the constituent material of the water purification filter 4 does not leak out of the cartridge 1. When the mesh / slit filter 5 is a mesh filter, it is excellent in preventing leakage of contents, and when it is a slit filter, it is less affected by the surface tension of water, and the speed of water passing through the filter is increased. Can do. In the present invention, the activated carbon filter 41 is provided with the first mesh / slit filter 51 and the activated carbon filter is provided with the second mesh / slit filter 52 to prevent leakage of activated carbon. However, the second mesh / slit filter 52 of the present invention needs to be disposed below the activated carbon filter 41, but may not be disposed directly below the activated carbon filter. That is, another water purification filter 4 or a net / slit filter 5 may be disposed between the activated carbon filter 41 and the second net / slit filter 52. This is because even in such a mode, as long as the shape of the second mesh / slit filter 52 is the shape of the present invention, the effects of the present invention can be achieved.

  The bottom of the air discharge cylinder 6 is fixed to the second mesh / slit filter 52. The fixing part of the air discharge cylinder 6 is preferably near the center of the second mesh / slit filter 52, but may be a part other than the vicinity of the center. When the second water purification filter 42 is further provided at the lower part of the second mesh / slit filter 52, the lower air passage hole of the air discharge cylinder 6 fixed to the bottom of the second mesh / slit filter 52. A third mesh / slit filter 53 is provided at 62 to prevent the constituent materials of the second water purification filter from leaking outside through the air discharge tube. FIG. 5 shows the air discharge cylinder 6 in which the third mesh / slit filter 53 is attached to the lower air passage hole 62. The third mesh / slit filter 53 may be a filter integrated with the second mesh / slit filter 52. Both are filters for preventing leakage of the water purification filter 4 components, and the required effects are the same.

  As the material of the net / slit filter 5, cellulose-based, condensed-based, inorganic-based materials, and the like can be used. Specifically, cellulose monoacetate, cellulose diacetate, cellulose triacetate, cotton, polymerization components such as polyethylene, polypropylene, polyacrylate, polymethacrylate, polyolefin, polyvinylidene fluoride, Teflon (Registered trademark), polyvinyl alcohol, condensation materials include polycarbonate, polyamide, polysulfone, polyethersulfone, polybenzoxazinedione, polybenzoimidazolone, polyester, and inorganic materials such as glass fiber, ceramic, Mention may be made of materials such as metals. By using these materials, a porous support, a nonwoven fabric, a Nakaichi sky membrane, a spiral membrane or a flat membrane can be produced and used as the mesh portion of the mesh / slit filter 5 in the present invention. In order to maintain the shape of the mesh / slit filter 5, a frame body that holds the mesh portion may be provided around the mesh portion.

  However, the first mesh / slit filter 51 is preferably a mesh filter. The material of the mesh portion of the first mesh / slit filter 51 is preferably a material that does not repel water flowing from the liquid inlet 1. Specifically, it is preferably a knitted fabric made of synthetic resin such as nylon or polyester or filament paper. The knitting here is used as a concept for the woven fabric. Examples of the knitted fabric include warp knitting, weft knitting, circular knitting, raschel knitting, tricot knitting and the like, and among them, warp knitting or tricot knitting is preferable. Water that has fallen on the net / slit filter 5 having a knitted, especially warp or tricot net, passes through the filter without forming polka dots due to the surface tension of the water. Can do.

  In the present invention, the second mesh / slit filter 52 to which the air discharge cylinder 6 is fixed is not a planar shape, but an umbrella or funnel that is inclined upward from the filter periphery toward the lower air passage hole 62 installation site. It is a shape like this. However, when the air discharge tube 6 is fixed to the bottom of the peripheral edge of the second mesh / slit filter 52, the filter shape is not an umbrella shape but a simple inclined shape.

  The inclination angle of the second mesh / slit filter 52 is preferably 3 to 45 degrees from the horizontal. If this inclination angle is too small, the air pressure in the vicinity of the lower air passage hole 62 cannot be increased. On the other hand, if the angle is too large, the cartridge 1 becomes unnecessarily long.

  Further, as shown in FIG. 5, the third mesh / slit filter 53 is for preventing the constituent materials of the second water purification filter 42 from leaking outside through the air discharge tube 6. However, it may be difficult to eliminate the staying air layer 7 at the same time. This is because a water film is easily formed on the mesh portion of the third mesh / slit filter 53. Therefore, in order to discharge the air staying under the activated carbon filter 41 and the second mesh / slit filter 52 while preventing leakage of the constituent material of the second water purification filter 42, the third mesh / A cut 531 may be formed in the mesh portion of the slit filter 53. There is no limitation on the cut shape, number, length, etc., but it is sufficient to provide a single straight cut of 3 to 10 mm. Making too many or many cuts only increases the risk of leakage of the constituent material of the water purification filter 42. Although shown in FIG. 1, a net / slit filter 5 is also required at the bottom of the second water purification filter 42 so that the constituent material of the second water purification filter does not leak from the lower part. The same applies when three or more water purification filters are arranged.

(Space part)
When activated carbon that has been dried and adsorbed air is put into water, the activated carbon floats. Using this phenomenon, the air in the staying air layer 7 can be more efficiently removed. As a means for this, a space 8 is provided between the first mesh / slit filter 51 and the activated carbon filter 41. When such a space 8 is present, when the activated carbon is in contact with water, the activated carbon aggregates while floating up to the space 8 above. For this reason, the amount of the staying air layer 7 generated in the lower part of the activated carbon filter 41 is increased, and the pressure applied from the aggregated activated carbon is also increased. Such an effect can be sufficiently achieved when the volume ratio of the space 8 to the volume of the activated carbon filter 41 is 5 vol% or more. It is clear that the effect increases as the proportion of the space portion 8 increases. However, even if the proportion of the space portion 8 is increased too much, the cartridge is unnecessarily large. Therefore, the volume ratio of the space portion 8 is 50 vol%. The following is efficient.

(Other configurations)
In the above-described embodiment, air is eliminated by the air discharge tube. However, instead of this, a cartridge having the following configuration may be employed.
That is, it is a cartridge for a water purifier having a liquid inlet at the top, a liquid outlet at the bottom, and having a water purification filter between the liquid inlet and the liquid outlet, and flows from the liquid inlet. Water is purified by passing through a water purification filter by the weight of the liquid, and the purified water flows out from the liquid outlet,
Inside the water purifier cartridge,
A first mesh / slit filter, an activated carbon filter as a water purification filter disposed under the first mesh / slit filter, and a second mesh / slit filter disposed under the activated carbon filter. Prepared,
The water purifier cartridge is characterized in that the activated carbon filter is composed of an activated carbon-containing fiber having an air passage gap in the vertical direction.

As an aspect of this invention, as shown in FIGS. 7 and 8, the activated carbon filter is composed of a sheet-like activated carbon-containing fiber body, and the activated carbon-containing fiber bodies flow into the air passage gap. It is preferable that the gap is parallel to the direction. 7 is a vertical sectional view showing an outline of another water purifier cartridge of the present invention, and FIG. 8 is a schematic perspective view showing a state of air passage in FIG. The same reference numerals as those in FIG. 1 indicate the same configurations as those in FIG. 7, 40 is a sheet-like activated carbon-containing fiber body. As shown in FIG. 8, gaps 403 and 403 between the activated carbon-containing fiber bodies are provided in the vertical and vertical directions, that is, in the same direction as the water flow direction. ing. In this example, the activated carbon-containing fiber body is provided at two places as shown in the figure, but it can also be installed at one place. In this example, the sheet-like activated carbon-containing fiber body is formed in a roll shape.
Accordingly, water flows in the direction of the discharge port through the activated carbon-containing fiber body having a fiber structure, while air A is discharged through the gap 403 in the direction opposite to the flow direction of water.

    As another embodiment, the activated carbon filter is composed of a plurality of layered activated carbon-containing fiber bodies, and the air passage gap is composed of gaps between the layers of the activated carbon-containing fiber bodies. It can also be.

    As still another form, the activated carbon filter may be composed of an activated carbon-containing fiber body having an air passage gap in the vertical direction.

  As described above, by configuring the activated carbon filter with activated carbon-containing fibers having air passage gaps in the vertical and vertical directions, the discharge adjustment of both water and air is improved in the activated carbon filter.

(Water purifier)
The water purifier 9 to which the water purifier cartridge 1 of the present invention is attached is a so-called water purifier that allows the cartridge to pass through by its own weight and store the purified water flowing out from the liquid outlet 3 of the cartridge in a container attached to the water purifier. It is a pot type water purifier. A specific example of such a water purifier 9 is shown in FIG. The water purifier 9 according to this embodiment includes a container having an open top, a mounting portion 91 in which the water purifier cartridge can be attached to and detached from the container, a water inlet 92, and a lid 95 that closes the opened top. .

  When the water purifier cartridge 1 is attached to the attachment portion 91, the container is divided into a container upper stage portion 93 that holds water before purification and a container lower step portion 94 that holds purified water. The liquid poured into the container upper stage portion 93 from the upper part of the water purifier 9 can flow out to the container lower stage portion 94 only after passing through the water purifier cartridge. The liquid stored in the lower container part 94 can be poured outside through a water inlet 92 that communicates only with the lower container part. In such a water purifier, the properties of the water purifier cartridge 1 of the present invention can be maximized.

  As the material of the water purifier 9 body, the same material as that used for the water purifier cartridge 1 can be used. Moreover, the resin to be used can be selected to make the main body of the water purifier 9 transparent. A host machine having such a transparent main body is preferable because it is excellent in design. The embodiment shown in FIG. 6 is an example of a water purifier having such a transparent main body.

  The present invention can be widely used as a water purifier and a cartridge which is an accessory thereof, but in particular, pot-type water purifiers are mainly popular for home use, and thus can be used in such fields. Is big.

It is a vertical sectional view showing the outline of the cartridge for water purifier of the present invention. It is the vertical sectional view which showed the outline of the conventional cartridge for water purifiers, and the flow of water. It is the schematic sectional drawing which showed typically the phenomenon which arises when water flows in into the cartridge of Fig.2 (a). It is the vertical sectional view which showed the outline of the cartridge for water purifiers which provided the air discharge cylinder, and the flow of water. FIG. 4 is a schematic cross-sectional view schematically showing a phenomenon that occurs when water flows into the cartridge of FIG. It is the vertical sectional view which showed the outline of the cartridge for water purifiers of this invention, and the flow of water. FIG. 5 is a schematic cross-sectional view schematically showing a phenomenon that occurs when water flows into the cartridge of FIG. FIG. 5 is a schematic cross-sectional view schematically showing how water flows out from the cartridge of FIG. It is a perspective view which shows the one aspect | mode of the air discharge cylinder in this invention. FIG. 6 is an enlarged view of the upper part of the air discharge cylinder of FIG. It is the water purifier of this invention which attached the cartridge for water purifiers. It is a vertical sectional view showing the outline of another cartridge for water purifier of the present invention. In FIG. 7, it is a schematic perspective view which shows the state of air passage.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water purifier cartridge 2 Liquid inflow port 3 Liquid outflow port 4 Water purifying filter 41 Activated carbon filter 42 Second water purifying filter 5 Mesh / slit filter 51 First mesh / slit filter 52 Second mesh / slit filter 53 First Third mesh / slit filter 531 Notch 6 Air discharge cylinder 61 Upper air passage hole 62 Lower air passage hole 63 Inner cylinder 64 Outer cylinder 65 Valve 66 Stopper 7 Retained air layer 8 Space part 9 Water purifier 91 Mounting part 92 Water inlet 93 Upper container part 94 Lower container part 95 Lid

Claims (9)

A water purifier cartridge having a liquid inlet at an upper part, a liquid outlet at a lower part, and having a water purification filter between the liquid inlet and the liquid outlet, and water flowing in from the liquid inlet is , The liquid is purified by passing through a water purification filter by its own weight, and the purified water flows out from the liquid outlet,
Inside the water purifier cartridge,
Disposed below the the first net / slit-shaped filter first net / slit-shaped filter, and the activated carbon filter as water filters having activated carbon in residence air layer included in the new activated carbon filter of the activated carbon filter The bottom is fixed to the second mesh / slit filter arranged at the bottom and the second mesh / slit filter, and penetrates the activated carbon filter and the first mesh / slit filter from the liquid inflow portion. Also has an air discharge tube extending upward,
The air discharge cylinder has a lower air passage hole for discharging air existing below the activated carbon filter, and an upper air passage hole for discharging air in the air discharge cylinder from above the liquid inflow portion to the outside. And
The second mesh / slit filter has at least a structure inclined upward from the filter periphery toward the lower air passage hole installation site,
A water purifier cartridge having a space between the first mesh / slit filter and the activated carbon filter. A water purifier cartridge having a liquid inlet at an upper part, a liquid outlet at a lower part, and having a water purification filter between the liquid inlet and the liquid outlet, and water flowing in from the liquid inlet is , The liquid is purified by passing through a water purification filter by its own weight, and the purified water flows out from the liquid outlet,
Inside the water purifier cartridge,
A first mesh / slit filter, an activated carbon filter as a water purification filter disposed below the first mesh / slit filter, a second mesh / slit filter disposed below the activated carbon filter, and An air discharge tube having a bottom fixed to a second mesh filter, penetrating through the activated carbon filter and the first mesh / slit filter and extending above the liquid inflow portion; and the second mesh / slit filter Having a second water purification filter located at the bottom,
The air discharge cylinder has a lower air passage hole for discharging air existing below the activated carbon filter, and an upper air passage hole for discharging air in the air discharge cylinder from above the liquid inflow portion to the outside. And a third mesh / slit filter is disposed in the lower air passage hole,
The water purifier cartridge having at least a structure in which the second mesh / slit filter is inclined upward from the filter periphery toward the lower air passage hole installation site.   The cartridge for water purifiers according to claim 2, wherein a cut portion is provided in any part of the net portion of the third mesh / slit filter.   The water purifier cartridge according to any one of claims 1 to 3, wherein the first mesh / slit filter is a mesh filter, and the mesh portion of the mesh filter is a knitted mesh.   The water purifier cartridge according to claim 4, wherein the knitted net is either warp knitting or tricot knitting.   The cartridge for water purifiers described in any one of Claims 1-5 whose volume ratio of the said space part with respect to the volume of the said activated carbon filter is 5-50 vol%.   The cartridge for water purifiers as described in any one of Claims 1-6 in which the said air discharge cylinder provides the valve structure in the said upper air passage hole site | part.   The air discharge cylinder is composed of an inner cylinder and an outer cylinder positioned in contact with the outer side wall of the inner cylinder, and the outer cylinder moves in the vertical direction along the side surface of the inner cylinder. The cartridge for water purifiers described in any one of Claims 1-7 which can be expanded-contracted. A container having an open upper part, a mounting part in which the water purifier cartridge can be attached and detached in the container, a water inlet, and a lid for closing the opened upper part, and attaching the water purifier cartridge to the mounting part. The container is divided into a container upper stage part and a container lower stage part, and water injected from above into the container upper stage part flows out into the container lower stage part only after passing through the water purifier cartridge, and enters the container lower stage part. The stored liquid is a water purifier that can be poured outside through the water inlet,
The water purifier which attached the cartridge for water purifiers described in any one of Claims 1-8 as the cartridge for water purifiers to the said attaching part.

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