JP4623204B2 - Water purification cartridge and water purifier - Google Patents

Description

  The present invention relates to a water purification cartridge and a water purifier provided with the same.

As a conventional water purifier, there are provided a plurality of water passages that contain fresh water agents having different mineral contents, and each water passage is provided with a water flow control valve, and by controlling the opening and closing of each water flow control valve, One in which the mineral concentration is variably set is known (Patent Document 1).
Japanese Patent Laid-Open No. 10-15564

  However, since the water purifier of Patent Document 1 includes a plurality of water passages and water passage control valves, there is a problem that the structure is complicated and the size is increased.

  Then, an object of this invention is to obtain the water purifier which can variably set an additive density | concentration with a simpler structure, and a water purifier provided with the same.

In the invention of claim 1, in a case where at least the upper part is formed in a substantially cylindrical shape, a purification chamber for purifying water and an additive storage chamber for storing an additive to be added to water are formed, The case is formed with a water inlet for introducing water into the additive storage chamber and a second water inlet for bypassing the additive storage chamber and introducing water into the purification chamber, and the water inlet is the second water inlet with more disposed above, in the case, a substantially bottomed cylindrical movable shielding member for variably setting the opening area of the water guide slot, the outer mounting Rutotomoni the case so as to cover the upper portion of the case from above The movable inlet is formed as an elongated slit-like opening along the circumferential direction of the case, and a plurality of openings whose lengths are increased from top to bottom are arranged side by side at a constant pitch, and the movable The shielding member is To scan mounted position of the lateral direction can variably set, characterized in that the number of blocking the water guide openings the horizontal position by varying the setting of the movable shielding member is variably set.

In the second aspect of the invention, in a case of forming at least the upper and in a substantially cylindrical shape, formed with purifying chamber for purifying water, and an additive storage chamber to store an additive to be added to water, the The case is formed with a water inlet for introducing water into the additive storage chamber and a second water inlet for bypassing the additive storage chamber and introducing water into the purification chamber, and the water inlet is the second water inlet with more disposed above, in the case, a substantially bottomed cylindrical movable shielding member for variably setting the opening area of the water guide openings, cover the outside of the case is attached so as to cover the upper portion of the case from above The movable shielding member is attached to the case so that the vertical position can be variably set, and the opening height of the water inlet is variable by variably setting the vertical position of the movable shielding member. What to set And features.

In the invention of claim 3, an air reservoir is formed in the upper part of the additive storage chamber, and the additive is added to the water introduced through the water inlet in a submerged area below the air reservoir. It is soaked, and the additive is accommodated in the additive storage chamber from a portion that becomes the water immersion region to a portion that becomes the air reservoir.

According to a fourth aspect of the present invention, the movable shielding member is attached to the case so that the vertical position can be variably set, and the vertical position of the movable shielding member is variably set. The opening height of the water inlet is variably set, and the upper limit of the flooded area is variably set.

In invention of Claim 5 , it is a water purifier which attaches | detached the said water purification cartridge which obtains the purified water which purified at least the introduce | transduced raw | natural water.

According to the first aspect of the present invention, a configuration in which the additive concentration can be variably set can be obtained as a simpler configuration as compared with a configuration in which a valve or the like is provided to change the flow rate. Further, according to the present invention, the additive containing chamber is divided by separating the water introduced from the water inlet and flowing through the additive containing chamber and the water introduced from the second water inlet and bypassing the additive containing chamber. It becomes easy to adjust the flow rate of the water flowing through, and it becomes easy to improve the adjustment accuracy of the additive concentration. Further, according to the present invention, by forming the water inlet at a position higher than the second water inlet, the flow rate of the water at the water inlet, that is, the water in the additive accommodating chamber, due to a head differential or water dynamic pressure, etc. It is possible to suppress the flow rate from increasing more than necessary. Moreover, according to this invention, since a movable shielding member exists in the outer side of a case, a user becomes easy to operate a movable shielding member. Further, according to the present invention, the movable shielding member can be obtained with a relatively simple configuration, and the movable shielding member can be more stably supported on the case. Further, according to the present invention, the additive concentration can be variably set by variably setting the position of the movable shielding member in the lateral direction. Further, according to the present invention, it is possible to obtain an effect that the user can easily visually recognize the opening area of the water inlet as the number of water inlets, and thereby easily recognize the setting of the additive concentration.

  According to the invention of claim 2, the additive is accommodated by diverting the water introduced from the water inlet and flowing through the additive accommodation chamber and the water introduced from the second water inlet and bypassing the additive accommodation chamber. It becomes easy to adjust the flow rate of the water flowing through the room, and it becomes easy to improve the adjustment accuracy of the additive concentration.

  According to the invention of claim 3, by forming the water inlet at a position higher than the second water inlet, the flow rate of the water at the water inlet, that is, the water in the additive storage chamber, due to the difference in head or the dynamic pressure of water, etc. It can suppress that the flow volume of this increases more than necessary.

  According to the invention of claim 4, the user can easily operate the movable shielding member because the movable shielding member is located outside the case.

  According to the fifth aspect of the invention, the movable shielding member can be obtained with a relatively simple configuration, and the movable shielding member can be more stably supported on the case.

  According to the sixth aspect of the present invention, the additive concentration can be variably set by variably setting the lateral position of the movable shielding member.

According to the invention of claim 2 , the additive concentration can be variably set by variably setting the vertical position of the movable shielding member.

According to invention of Claim 3 , the additive in an air pocket can be maintained in the state which is not immersed or flooded. When the additive in the flooded area elutes into the water, the additive above it falls downward and is automatically supplied to the flooded area. Therefore, since the additive stored in the additive storage chamber can be used sequentially from the one arranged on the lower side, the additive stored in the water purification cartridge is totally submerged or flooded. Compared with the structure to do, it becomes easy to take the usable period of an additive longer.

According to the invention of claim 4 , the amount of the additive immersed in water is changed by variably setting the height of the movable shielding member, and the additive concentration can be changed by changing the amount of immersion. it can.

According to invention of Claim 5 , the water purifier equipped with the water purification cartridge which has the said effect can be obtained.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that similar components are included in the following embodiments. Therefore, in the following, common reference numerals are given to those similar components, and redundant description is omitted.

  (First Embodiment) FIGS. 1 to 4 show a first embodiment of the present invention. FIG. 1 is a sectional view of a water purifier, FIG. 2 is a sectional view of a water purification cartridge, and FIG. 4 is an exploded perspective view of the cartridge, FIG. 4 is a perspective view of the water purification cartridge, (a) is a view showing a state where the water inlet is opened by the movable shielding member, (b) is about half the water inlet is shielded It is a figure which shows a state.

  First, with reference to FIG. 1, schematic structure of the water purifier 1 concerning this embodiment is demonstrated. This water purifier 1 is configured as a pot-type water purifier. A substantially bottomed cylindrical partition wall body 3 is accommodated in the cylinder of the substantially bottomed cylindrical pot case 2, and the partition wall body 3 forms approximately the upper half of the cylinder of the pot case 2. It is partitioned into a raw water chamber 4 and a water purification chamber 5 that forms approximately half of the lower side.

  The bottom wall 3a of the partition wall 3 is formed with a substantially cylindrical recess 3b that is recessed downward. A substantially cylindrical water purification cartridge 6 is inserted into the recess 3b from the top to the back and fitted. An opening 3d is formed in the back wall 3c of the recess 3b.

  In a state where the water purification cartridge 6 is fitted in the recess 3b, the upper portion 6a of the water purification cartridge 6 is exposed in the raw water chamber 4, and the water inlets 7a and 7b formed in the case 7 face the raw water chamber 4 at the upper portion 6a. It is like that. The second water inlet 7b is installed in the vicinity of the bottom wall 3a. In this state, the lower end 6b of the water purification cartridge 6 is exposed in the water purification chamber 5 through the opening 3d, and the drain port 7c formed in the case 7 faces the water purification chamber 5 at the lower end 6b. Yes. The raw water in the raw water chamber 4 is introduced into the water purification cartridge 6 from the water inlets 7a and 7b, and after being purified at least, is discharged into the water purification chamber 5 from the drain port 7c.

  Above the raw water chamber 4, a ceiling wall 8 in which a water supply port 8a is formed is disposed. The water supply port 8a is closed so as to be openable and closable by a top-opening type lid 9 that is rotatably attached to the top wall 8. The raw water is supplied into the raw water chamber 4 through the water supply port 8a with the lid 9 opened upward.

  Further, a passage 10 extending upward from the water purification chamber 5 is formed between the side wall 3e of the partition wall 3 and the pot case 2, and the pot case 2 or the top wall 8 has an upper end portion of the passage 10. A water inlet 10a is formed at the position. In the present embodiment, the pot case 2 is tilted so that the water injection port 10a is downward (in FIG. 1, the pot case 2 is tilted clockwise), and the purified water stored in the water purification chamber 5 is collected. The water is discharged from the water inlet 10a through the passage 10. In the present embodiment, the water inlet 10a is closed so as to be openable and closable by a top-opening type lid 11 that is rotatably supported by the pot case 2 or the top wall 8. In this case, when the pot case 2 is tilted, the lid 11 can be rotated by its own weight, dynamic pressure of water, or the like to open the water inlet 10a.

  Next, the configuration of the water purification cartridge 6 will be described with reference to FIGS. The water purification cartridge 6 is formed in a substantially cylindrical shape, and the cylindrical central axis Ax (see FIGS. 1 and 2) is used in a posture along the vertical direction. The case 7 has an upper case 12 that forms an upper part in use and a lower case 13 that forms a lower part. The lower edge of the upper case 12 and the upper edge of the lower case 13 are connected to each other to form a substantially cylindrical outer shape. Presents. In the following, the vertical direction, the axial direction, the circumferential direction, and the radial direction are defined based on the cylindrical shape of the water purification cartridge 6 in the use state.

  The inside of the case 7 is roughly divided into three spaces in the vertical direction (axial direction) by a partition wall 14 and a sheet 15 disposed below the partition wall 14 with a space therebetween. The upper portion is an additive storage chamber S1 for storing the additive 16, the lowermost portion is a purification chamber S2 for purifying water, and the intermediate portion is an intermediate chamber S3.

  The additive storage chamber S <b> 1 is formed by being surrounded by the upper case 12 and the partition wall 14. The upper case 12 includes a peripheral wall 12a that forms the upper part of the peripheral wall of the case 7, a top wall 12b that forms the top wall of the case 7, and an inner portion that extends downward from the center of the top wall 12b substantially along the central axis Ax of the water purification cartridge 6. Tube 12c. A partition wall 14 is attached to the upper case 12 so as to close the lower part in the cylinder. In other words, in the present embodiment, the additive storage chamber S1 is formed in the cylinder of the upper case 12 as a space having a substantially annular cross section surrounded by the peripheral wall 12a, the top wall 12b, the inner cylinder 12c, and the partition wall 14. Yes. In this additive storage chamber S1, an additive 16 such as granular calcium having a diameter of about several millimeters is stored.

  As shown in FIGS. 3 and 4 and the like, a substantially rectangular water inlet 7a is formed in the peripheral wall 12a. A water-permeable mesh 17 is stretched on the water inlet 7a by insert molding or the like, so that the additive 16 is prevented from spilling out of the water inlet 7a. The inner cylinder 12c is formed with a slit-shaped notch 12d extending upward from the lower end thereof. The width of the notch 12d is set to be smaller than the particle diameter of the additive 16, thereby suppressing the additive 16 from flowing out of the notch 12d. In the present embodiment, the axial position of the upper edge 12e of the notch 12d and the axial position of the upper edge 12f of the water inlet 7a are substantially the same.

  A projecting portion 14b that projects upward in a substantially conical shape is formed at the center portion of the bottom wall portion 14a of the partition wall 14, and the projecting portion 14b projects upward and projects into the inner cylinder. A cylindrical portion 14c through which 12c is inserted is formed. A plurality of slits 14d extending radially from the central axis Ax of the water purification cartridge 6 are formed in the bottom wall portion 14a as drain ports from the additive storage chamber S1. The width of the slit 14d is also set to be smaller than the particle diameter of the additive 16, thereby suppressing the additive 16 from flowing out of the slit 14d.

  In the additive storage chamber S1 having the above configuration, the additive 16 is eluted into the raw water introduced into the additive storage chamber S1 from the raw water chamber 4 through the water inlet 7a, and the water to which the additive has been added is added. It flows out from the agent storage chamber S1 to the intermediate chamber S3 through the slit 14d of the partition wall 14.

  Here, in the present embodiment, an air reservoir Aa for confining air is formed in the upper portion of the additive storage chamber S1, and thereby, the additive 16 existing in the air reservoir Aa, that is, in the upper portion of the additive storage chamber S1. Do not immerse in water. That is, the concave portion 18 constituted by the peripheral wall 12a, the top wall 12b, and the inner cylinder 12c is only opened downward and has no air passage upward, so that the additive is contained from the water inlet 7a. Even when water enters the chamber S1 and all of the upper part 6a of the water purification cartridge 6 is immersed in the water stored in the raw water chamber 4 (that is, in a submerged state), air accumulates in the recess 18 and the air pools. It is possible to prevent the additive 16 in the Aa from getting wet. In the present embodiment, normally, the positions of the notches 12d and the upper edges 12e and 12f of the water inlet 7a become the upper limit L of the inundation area Aw, and the additive 16 positioned below the upper limit L is immersed in water, and the upper limit L The additive 16 located above is not soaked in water.

  In such a configuration, when the additive 16 located below is immersed in water and eluted, the additive 16 located above falls downward due to gravity and is automatically supplied to the flooded area Aw. Therefore, since the additive 16 accommodated in the additive accommodating chamber S1 can be used sequentially from the one arranged on the lower side, the additive accommodated in the water purification cartridge is totally submerged or submerged. Compared to the configuration, the usable period of the additive 16 can be made longer, and the concentration difference of the additive can be more easily suppressed between the initial stage of use of the water purification cartridge 6 and the latter stage of use.

  As shown in FIG. 3 and FIG. 4, a plurality of second water inlets 7 b are formed at substantially lower intervals in the circumferential direction at the lower part of the peripheral wall 12 a of the upper case 12 that forms the peripheral wall of the intermediate chamber S <b> 3. Therefore, raw water is introduced into the intermediate chamber S3 from the raw water chamber 4 through the second water inlet 7b, and water to which the additive is added from the additive storage chamber S1 through the slit 14d, These waters are introduced into the purification chamber S2 (the adsorption treatment chamber S21) disposed below the intermediate chamber S3. That is, in this embodiment, the raw water introduced from the second water inlet 7b to the intermediate chamber S3 bypasses the additive storage chamber S1. In this way, by dividing the water flowing through the additive storage chamber S1 and the water bypassing the additive storage chamber S1, the flow rate of the water flowing through the additive storage chamber S1 and the additive storage chamber S1 are reduced. The flow rate of the water to be bypassed can be set independently, so that the adjustment accuracy of the additive concentration can be easily increased.

  Moreover, in this embodiment, the 2nd water inlet 7b is arrange | positioned below the water inlet 7a. For this reason, the water head difference due to the height difference between the water inlet 7a and the second water inlet 7b, and the second water inlet 7b located near the bottom wall 3a of the partition wall 3 when the raw water chamber 4 is initially supplied with water. Due to the dynamic pressure of the water that reaches, the water is more likely to enter from the second water inlet 7b than the water inlet 7a. Therefore, particularly when the raw water chamber 4 is initially supplied, the flow rate of water at the water inlet 7a can be relatively reduced, and the flow rate of water in the additive storage chamber S1 can be easily adjusted to be small.

  The purification chamber S2 disposed below the intermediate chamber S3 is partitioned in a radial direction by a substantially cylindrical cylindrical body 19 disposed at a position along the central axis Ax of the water purification cartridge 6. In the present embodiment, The outer peripheral side of the cylinder 19 is an adsorption processing chamber S21 in which an adsorbent (eg, granular or powdered activated carbon) 20 is accommodated, and the inside of the cylinder 19 is a hollow filter material (eg, an inverted U-shaped curve). A filtration processing chamber S22 in which a thread membrane 21) is accommodated. In such a configuration, the water introduced from the intermediate chamber S3 is discharged from the drain port 7c of the lower end portion 6b via the adsorption processing chamber S21 and the filtration processing chamber S22 in this order. The cylindrical body 19 is fitted into a recessed portion 13b that is recessed downward formed in the center portion of the bottom wall 13a of the lower case 13 that forms the bottom wall of the case 7, and thereby, in the vertical direction along the central axis Ax of the water purification cartridge 6. It is erected.

  The adsorption processing chamber S <b> 21 is surrounded by the peripheral wall 13 c of the lower case 13, which forms the lower peripheral wall of the case 7, the cylindrical body 19, the bottom wall 13 a, and the sheet 15, and is formed in a cylindrical shape having a substantially annular cross section. The sheet | seat 15 can be comprised, for example with a nonwoven fabric. In this embodiment, the sheet 15 is formed in a ring shape and surrounds the cylinder 19, and the outer edge portion 15 a is fixed to the case 7 so as to be sandwiched between the upper case 12 and the lower case 13. On the other hand, the inner edge portion 15b is a free end so that water is introduced from the intermediate chamber S3 into the adsorption processing chamber S21 through a gap between the inner edge portion 15b and the cylindrical body 19. In addition, the sheet | seat 15 may be comprised with a water-permeable raw material, and you may make it permeate | transmit water. Further, in the present embodiment, the cap 22 is attached to the upper end of the cylindrical body 19, and the inner edge portion 15b of the sheet 15 is warped upward from the flange portion 22a by the flange portion 22a protruding from the cap 22 to the outside of the diameter. I am trying not to. With such a configuration, even when the water purification cartridge 6 is tilted or turned upside down with the water purification cartridge 1 removed from the water purifier 1, the sheet 15 is locked to the flange portion 22a and the gap is closed. It is possible to suppress the adsorbent 20 from leaking from S21 to the intermediate chamber S3 side.

  A communication port 19a is formed in the lower part of the cylindrical body 19, and the adsorption processing chamber S21 and the filtration processing chamber S22 are communicated with each other through the communication port 19a. The water removed by adsorbing impurities to the adsorbent 20 in the adsorption treatment chamber S21 is introduced into the filtration treatment chamber S22 through the communication port 19a.

  In the filtration chamber S22, a number of thin straw-shaped hollow fiber membranes as the filtering material 21 are accommodated in a state of being bundled and curved in a substantially inverted U shape. The water that has passed through the membrane wall of the hollow fiber membrane from the inside of the filtration processing chamber S22 and permeated into the membrane flows out into the lower end of the filtration processing chamber S22 through the membrane, and flows out from the drain port 7c into the water purification chamber 5. . When water passes through the membrane wall of the hollow fiber membrane, impurities contained in the water are filtered. The hollow fiber membrane as the filter medium 21 is fixed to the cylindrical body 19 while being filled with an adhesive (not shown) below the communication port 19a, and is hollowed out from the filtration processing chamber S22 by this adhesive. Direct outflow is prevented without passing through the thread membrane.

  As a result of intensive studies conducted by the inventors on the water purification cartridge 6 having the above-described configuration, it has been found that the concentration of water additive varies depending on the flow rate of water flowing through the additive storage chamber S1. As an example, in the case where a granular calcium agent is used as the additive 16, as the flow rate of the water flowing in the additive storage chamber S1 is increased, the stirring effect by the water flow is increased and mixed in the water in the additive storage chamber S1. The additive concentration of the water after the water that has passed through the additive storage chamber S1 and the water introduced into the water purification cartridge 6 from the second water inlet 7b merged, and thus the water purification cartridge 6 increases. It has been found that the additive concentration of water discharged from the plant increases. Therefore, in the present embodiment, the movable shielding member 23 that variably sets the opening area of the water inlet 7a is attached to the case 7, and the flow rate of the water flowing in the additive containing chamber S1 is adjusted by adjusting the position of the movable shielding member 23. Thus, the additive concentration in the water (purified water) that has passed through the water purification cartridge 6 can be variably set.

  In the present embodiment, as shown in FIGS. 2 to 4, a substantially bottomed cylindrical movable shielding member 23 that covers the outer periphery of the upper case 12 from above is attached so as to be rotatable along the circumferential direction of the upper case 12. It is. The peripheral wall 23a of the movable shielding member 23 covers the peripheral wall 12a of the upper case 12 with a slight gap, and the peripheral wall 23a has a substantially rectangular cutout 23c as an opening from the lower edge 23b upward. Is provided.

  On the outer surface of the peripheral wall 12a of the upper case 12, a plurality of (three in the present embodiment) ridges 12g along the circumferential direction are provided in parallel up and down at regular intervals, while the peripheral wall 23a of the movable shielding member 23 is provided. A projection 23d is provided on the inner surface, and the projection 23d is engaged with the projection 12g in the axial direction with the movable shielding member 23 assembled to the upper case 12, and the projection 23d is guided in the circumferential direction by the projection 12g. It has become. Further, the protrusion 12g is provided with a notch 12h that allows relative movement in the axial direction of the protrusion 23d. Accordingly, as shown in FIG. 3, the upper case 12 and the movable shielding member 23 are brought close to each other in the axial direction with the projection 23d and the notch 12h aligned, and then they are relatively rotated in the circumferential direction. By doing so, the projection 23d is accommodated between the ridges 12g, and the movable shielding member 23 can be assembled to the upper case 12 (case 7), and the movable shielding member 23 rotates along the circumferential direction of the upper case 12. It becomes possible.

  In such a configuration, as shown in FIG. 4, when the circumferential position of the movable shielding member 23 is changed, the area where the notch 23c and the water inlet 7a overlap changes, and the opening width w and the opening area ( The width and area of the area facing the raw water chamber 4 can be variably set.

  FIG. 4A shows a state where the entire water inlet 7a is open. In this state, since the flow rate of water flowing into the additive storage chamber S1 from the water inlet 7a is relatively large, the concentration of the additive eluted into water in the additive storage chamber S1 becomes high.

  FIG. 4B shows a state in which about half of the water inlet 7a is closed by the peripheral wall 23a of the movable shielding member 23 and about half is opened. In this state, compared to the case of FIG. 4A, the flow rate of water in the additive storage chamber S1 is reduced, and the concentration of the additive eluted into the water in the additive storage chamber S1 is correspondingly reduced. .

  Thus, according to the water purification cartridge 6 concerning this embodiment, the additive concentration of water is changed by changing the relative rotation position (lateral position) around the central axis Ax of the movable shielding member 23 with respect to the case 7. Can be changed.

  In addition, when air unintentionally accumulates in each part of the water purification cartridge 6, particularly in the intermediate chamber S 3, between the sheet 15 and the adsorbent 20, the water gravity balances the air buoyancy and the flow path of the water is increased. Since it is blocked by air, a desired flow rate cannot be obtained, and it may take time until purified water is obtained, or a desired additive concentration may not be obtained. Therefore, in this embodiment, an air vent passage is formed substantially along the central axis Ax of the water purification cartridge 6.

  Specifically, a substantially cylindrical central tube portion 23f that extends downward and enters the tube of the inner tube 12c is formed at the center portion of the top wall 23e of the movable shielding member 23. A through hole 23g penetrating the top wall 23e is formed on the back side (upper side). This through hole 23g becomes an air vent hole of the water purification cartridge 6.

  The cap 22 fitted to the upper end of the cylindrical body 19 has a conical portion 22b that becomes thinner as it goes upward, and a cylindrical portion 22c that extends upward from the top of the conical portion 22b. The front end extends to the vicinity of the lower end of the central cylinder portion 23f. Therefore, the air in the filtration chamber S22 is discharged from the through hole 23g through the insides of the conical portion 22b, the cylindrical portion 22c, and the central cylindrical portion 23f.

  The air in the adsorption processing chamber S21 and the intermediate chamber S3 moves to the central axis Ax side of the water purification cartridge 6 while rising along the protruding portion 14b of the partition wall 14, enters the cylinder of the inner cylinder 12c through the notch 12d, Furthermore, it enters into the cylinder of the central cylinder part 23f from the opening at the lower end of the central cylinder part 23f, and is discharged from the through hole 23g.

  Except for the air stored in the air reservoir Aa, the air in the additive storage chamber S1 is discharged from the through hole 23g through the notch 12d, through the cylinder of the inner cylinder 12c, and the cylinder of the central cylinder portion 23f.

  As described above, in this embodiment, the case 7 is formed with the water inlet 7a for introducing water into the additive storage chamber S1, and the case 7 is movable to set the opening area of the water inlet 7a variably. The shielding member 23 was attached. Therefore, a configuration in which the additive concentration can be variably set can be obtained as a relatively simple configuration as compared with a configuration in which a valve or the like is provided to change the flow rate. In addition, when calcium etc. are used as an additive, the hardness of water can be variably set.

  Moreover, in this embodiment, the water inlet 7a is formed in the peripheral wall 12a of the upper case 12 as an outer wall of the case 7, and the water inlet 7a is blocked by the peripheral wall 23a of the movable shielding member 23 that covers the outer side of the peripheral wall 12a. . Therefore, the user can easily operate the movable shielding member 23 because the movable shielding member 23 is disposed so as to cover the outside of the case 7.

  Further, in this embodiment, at least the upper part of the case 7 is formed in a substantially cylindrical shape, the water inlet 7a is formed in the peripheral wall 12a, and the movable shielding member 23 is formed in a bottomed cylindrical shape that covers the case 7 from above. By rotating the periphery of the case 7, the water inlet 7 a is blocked by the peripheral wall 23 a of the movable shielding member 23. Therefore, the movable shielding member 23 can be obtained with a relatively simple configuration, and the movable shielding member 23 can be stably supported on the case 7. Moreover, the opening area of the water inlet 7a can be changed and the additive concentration can be changed by a relatively simple operation of rotating the movable shielding member 23 relative to the case 7 (moving it in the lateral direction). . Furthermore, when the water purification cartridge 6 is inserted and mounted in the pot case 2 of the water purifier 1 from above as in the present embodiment, the movable shielding member 23 is mounted from above while being mounted in the pot case 2. It is convenient to be able to operate.

  In the present embodiment, the case 7 is provided with the second water inlet 7b that bypasses the additive storage chamber S1 and introduces water into the purification chamber S2. Therefore, by dividing the water that passes through the additive storage chamber S1 and the water that bypasses the additive storage chamber S1, the flow rate of the water flowing through the additive storage chamber S1 and the additive storage chamber S1 are bypassed. The flow rate of water can be set independently, so that the adjustment accuracy of the additive concentration can be easily increased.

  Moreover, in this embodiment, the water inlet 7a was arrange | positioned above the 2nd water inlet 7b. For this reason, the water head difference due to the height difference between the water inlet 7a and the second water inlet 7b, and the second water inlet 7b located near the bottom wall 3a of the partition wall 3 when the raw water chamber 4 is initially supplied with water. Due to the dynamic pressure of the water that reaches, the water is more likely to enter from the second water inlet 7b than the water inlet 7a. Therefore, particularly when the raw water chamber 4 is initially supplied, the flow rate of water at the water inlet 7a can be relatively reduced, and the flow rate of water in the additive storage chamber S1 can be easily adjusted to be small. Therefore, in the case of this embodiment, it becomes easy to adjust the additive concentration lower. Furthermore, according to this structure, it becomes easy to arrange | position the movable shielding member 23 which changes the opening area of the water inlet 7a in the upper part of the water purification cartridge 6. FIG. Therefore, when the water purification cartridge 6 is inserted and installed in the pot case 2 of the water purifier 1 from above as in the present embodiment, the immersion height is movable from above while being mounted in the pot case 2. The member 23 is easy to operate and is convenient.

  Moreover, in this embodiment, since additive storage chamber S1 was arrange | positioned above the 2nd water inlet 7b, after the water level of the raw | natural water chamber 4 became lower than the lower end of the additive storage chamber S1, from the 2nd water inlet 7b. Only water will flow into the water purification cartridge 6 and will not pass through the additive storage chamber S1 and will not contain the additive 16 and will be downstream from the intermediate chamber S3 (in the intermediate chamber S3, the purification chamber S2, etc.). Thus, the discharge of the additive 16 can be promoted to prevent the additive 16 from remaining. Therefore, at the time of the next use, it is suppressed that the additive concentration becomes higher than the set value due to the remaining additive 16, and the desired additive concentration is easily obtained.

  In the present embodiment, the air reservoir Aa is formed in the upper part of the additive storage chamber S1, and the additive 16 is added to the water introduced through the water inlet 7a in the submerged area Aw below the air reservoir Aa. The additive 16 was accommodated in the additive accommodating chamber S1 from the portion serving as the water immersion area Aw to the portion serving as the air reservoir Aa. In such a configuration, the additive 16 in the air reservoir Aa can be maintained without being submerged or flooded. When the additive 16 in the water immersion area Aw is immersed in water and eluted, the additive 16 positioned above the water drops downward due to gravity and is automatically supplied to the water immersion area Aw. Therefore, since the additive 16 accommodated in the additive accommodating chamber S1 can be used sequentially from the one arranged on the lower side, the additive accommodated in the water purification cartridge is totally submerged or submerged. Compared to the configuration, the usable period of the additive 16 can be made longer, and the change in the concentration of the additive can be suppressed to be smaller between the initial use stage and the later use stage of the water purification cartridge 6. Moreover, according to this embodiment, the immersion height of the additive 16 can be set according to the height of the flooded area Aw, and thereby the maximum value of the additive concentration can be set. That is, it is possible to suppress the additive 16 from dissolving in water more than necessary.

  (Second Embodiment) FIGS. 5 to 7 show a second embodiment of the present invention, FIG. 5 is an exploded perspective view of a water purification cartridge according to the present embodiment, and FIG. FIG. 7 is a perspective view of the water purification cartridge, and FIG. 7A is a view showing a state where the water inlet is opened by the movable shielding member, and FIG. 7B is a state where the water inlet is shielded by about half. FIG.

  The water purification cartridge 6A according to the present embodiment can be used by being attached to the water purifier 1 instead of the water purification cartridge 6 according to the first embodiment.

  Similarly to the water purification cartridge 6 of the first embodiment, the water purification cartridge 6A also changes the flow rate of water in the additive storage chamber S1 by changing the opening area of the water inlet 7aA formed in the case 7A by the movable shielding member 23A. Thus, the additive concentration is changed. Also in this embodiment, the substantially bottomed cylindrical movable shielding member 23A is rotatably attached so as to cover the case 7A from above, and the relative angle of the movable shielding member 23A with respect to the case 7A is changed. The area of the water port 7aA is changed.

  However, in the present embodiment, the water inlet 7aA is divided into a plurality of water inlets 70a, and the number of water inlets 70a shielded (opened) by the movable shielding member 23A can be variably set. Specifically, on the peripheral wall 12a of the upper case 12A, a plurality of slit-shaped water inlets 70a that are elongated along the circumferential direction are arranged in parallel at a constant pitch in the vertical direction (four in the present embodiment), from above. The length of the water inlet 70a is increased as it goes downward. Therefore, as shown in FIG. 7, the number of water inlets 70a to be shielded varies depending on the rotational position of the movable shielding member 23A. For example, in the state of FIG. 7A, all the four water inlets 70a are opened, and in the state of FIG. 7B, the upper two water inlets 70a are shielded and the lower water inlet 70a is opened. Open (partially).

  Therefore, according to the present embodiment, it becomes easier for the user to visually recognize the opening area of the water inlet 7aA as the number of the water outlets 70a exposed to the outside, and thus recognize the setting of the additive concentration. The effect that it becomes easy to do is acquired.

  In the present embodiment, a locking mechanism 24 that locks the movable shielding member 23A to the case 7A is provided at a position where the shielding number of the water inlet 70a is switched. Specifically, a groove 24a extending in the circumferential direction is extended on the outer surface of the peripheral wall 12a of the upper case 12A, while a protrusion 24b is provided on the inner surface of the peripheral wall 23a of the movable shielding member 23A, and the groove 24a surrounds the protrusion 24b. Configure to guide in direction. Then, a protrusion 24c that holds the protrusion 24b at a predetermined position is provided in the groove 24a, and the protrusion 24c is appropriately disposed, so that the movable shielding member 23A can be placed at a plurality of locations where the shielding number of the water inlet 70a is switched (this embodiment). In the form, it can be stopped at four locations in the circumferential direction. The protrusion 24b is maintained at a position sandwiched between the end wall and the protrusion 24c at both ends of the groove 24a, and is maintained at a position sandwiched between the pair of protrusions 24c and 24c at an intermediate position of the groove 24a. .

  According to such a configuration, when the protrusion 24b gets over the protrusion 24c, it is possible to give a click feeling to the user who operates the movable shielding member 23A, and it is easy to set the movable shielding member 23A at a predetermined position. can get.

  (Third Embodiment) FIGS. 8 to 10 show a third embodiment of the present invention. FIG. 8 is an exploded perspective view of a water purification cartridge according to this embodiment, and FIG. 9 is a perspective view of the water purification cartridge. (A) is a diagram showing a state where the water inlet is closed by the movable shielding member, (b) is a diagram showing a state where the water inlet is shielded about half, and (c) is a diagram where the water inlet is opened. FIG. 10 is a cross-sectional view of the water purification cartridge, (a) is a diagram showing a state where the water inlet is closed by the movable shielding member, and (b) is a state where the water inlet is shielded by about half. (C) is a figure which shows the state by which the water inlet was open | released.

  The water purification cartridge 6B according to the present embodiment can be used by being attached to the water purifier 1 instead of the water purification cartridge 6 according to the first embodiment.

  Moreover, this water purification cartridge 6B also changes the opening area of the water inlet 7a formed in the case 7B by the movable shielding member 23B, similarly to the water purification cartridge 6 of the said 1st Embodiment, and the flow volume of the water in additive storage chamber S1 Thus, the additive concentration is changed.

  However, in this embodiment, the movable shielding member 23B is attached to the case 7B so that the vertical position of the movable shielding member 23B can be variably set, and the vertical position of the movable shielding member 23B is variably set, thereby opening the water inlet 7a. The height h (see FIG. 9) is changed. Specifically, as shown in FIG. 8, a height adjustment mechanism 25 is configured by a groove 25a provided on the peripheral wall 12a of the upper case 12B (case 7B) and a protrusion 25b provided on the inner surface of the movable shielding member 23B. It is. The groove 25a includes a vertical groove 25c extending downward from the upper end of the peripheral wall 12a and a plurality of horizontal grooves 25d extending from the vertical groove 25c toward one side in the circumferential direction (left side in FIG. 8). The horizontal grooves 25d are arranged in a plurality (five in this embodiment) at a constant pitch (equal intervals). Therefore, the movable shielding member 23B is moved by moving the movable shielding member 23B downward along the protrusion 25b along the vertical groove 25c, and rotating the movable shielding member 23B in the circumferential direction to insert the protrusion 25b into any of the horizontal grooves 25d. Can be variably set in a plurality of levels (in this embodiment, 5 levels). It is preferable that a protrusion 25e is formed on the back side of the horizontal groove 25d so that the protrusion 25b can be easily maintained at the innermost part of the horizontal groove 25d, and a click feeling is generated by getting over the protrusion 25b.

  With this configuration, as shown in FIGS. 9A to 9C, the opening height h of the water inlet 7a is variably set, thereby changing the flow rate of water in the additive storage chamber S1 and adding it. The agent concentration can be varied.

  Further, in the present embodiment, the height of the upper limit L of the submerged area Aw in the additive storage chamber S1 can be changed by the movable shielding member 23B. In the present embodiment, the lower end 23h of the central cylindrical portion 23f of the movable shielding member 23B and the lower edge 23b of the peripheral wall 23a are set to the same height. Accordingly, the annular recess 23i between the peripheral wall 23a of the movable shielding member 23B and the central cylindrical portion 23f becomes an overall air reservoir, and the positions of the lower end 23h and the end edge 23b become the upper limit L of the flooded area Aw. As shown in FIGS. 10A to 10C, the amount of the additive 16 immersed in water is changed by variably setting the height of the movable shielding member 23B. The additive concentration can be changed. Therefore, in the present embodiment, the actual additive concentration is determined by the height of the upper limit L and the opening area (opening height h) of the water inlet 7a.

  And in the structure of this embodiment, as shown to Fig.9 and FIG.10 (a), while closing the water inlet 7a with the movable shielding member 23B, the upper limit of the water immersion area | region Aw is made into the lower end (partition wall) of additive storage chamber S1. 14 (the upper surface of 14), a state where the additive concentration is almost zero can be obtained without immersing the additive 16 in water.

  As described above, in the present embodiment, the movable shielding member 23B is attached to the case 7B so that the vertical position of the movable shielding member 23B can be variably set, and the vertical position of the movable shielding member 23B is variably set. The opening height of the water inlet 7a was changed. Also with such a configuration, the opening area of the water inlet 7a can be variably set, whereby the flow rate of water in the additive storage chamber S1 can be variably set and the additive concentration can be variably set. Moreover, since the protrusion amount from the case 7B of the movable shielding member 23B changes, there is an advantage that it becomes easy for the user to visually recognize the change in the opening area. Furthermore, in this embodiment, since the upper limit L of the flooded area Aw can be changed as the height position of the movable shielding member 23B is changed, the additive concentration can be variably set using this point as well. Can do.

  (Modification of Third Embodiment) FIG. 11 is a sectional view of a water purification cartridge according to a modification of the third embodiment.

  The water purification cartridge 6 </ b> C according to this modification is provided with a pressing mechanism 26 that presses the additive 16 downward toward the submerged area Aw. The pressing mechanism 26 includes a top plate 26a placed on the granular additive 16, and a coil spring as a biasing mechanism that is housed in the recess 18 of the upper case 12B and biases the top plate 26a downward. 26b, and the additive 16 is pressed downward through the top plate 26a by the compression reaction force of the coil spring 26b.

  According to such a configuration, the additive 16 on the upper side can be moved downward more reliably by the pressing mechanism 26 in accordance with the elution of the additive 16 in the submerged area Aw. Thus, the filling density of the additive 16 in the flooded area Aw can be increased. In addition, the change in the density of the additive 16 in the submerged area Aw during the use period of the water purification cartridge 6 can be reduced to suppress the fluctuation of the additive concentration.

The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made. For example, the specifications (shape, size, layout, etc.) of the additive storage chamber, purification chamber, water inlet, second water inlet, and other details can be changed as appropriate.

It is sectional drawing of the water purifier concerning embodiment of this invention. It is sectional drawing of the water purification cartridge concerning 1st Embodiment of this invention. It is a disassembled perspective view of the water purification cartridge concerning 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the water purification cartridge concerning 1st Embodiment of this invention, Comprising: (a) is a figure which shows the state by which the water inlet was open | released by the movable shielding member, (b) is the state by which the water inlet was shielded about half FIG. It is a disassembled perspective view of the water purification cartridge concerning 2nd Embodiment of this invention. It is VI-VI sectional drawing of FIG. It is a perspective view of the water purification cartridge concerning 2nd Embodiment of this invention, Comprising: (a) is a figure which shows the state by which the water inlet was open | released by the movable shielding member, (b) is the state by which the water inlet was shielded about half FIG. It is a disassembled perspective view of the water purification cartridge concerning 3rd Embodiment of this invention. It is a perspective view of the water purification cartridge concerning 3rd Embodiment of this invention, Comprising: (a) is a figure which shows the state by which the water inlet was obstruct | occluded by the movable shielding member, (b) is the state by which the water inlet was shielded about half (C) is a figure which shows the state by which the water inlet was open | released. It is sectional drawing of the water purification cartridge concerning 3rd Embodiment of this invention, Comprising: (a) is a figure which shows the state by which the water inlet was obstruct | occluded by the movable shielding member, (b) is the state by which the water inlet was shielded about half (C) is a figure which shows the state by which the water inlet was open | released. It is sectional drawing of the water purification cartridge concerning the modification of 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water purifier 6, 6A, 6B, 6C Water purifying cartridge 7, 7A, 7B Case 7a, 7aA Water inlet 7b Second water inlet 70a Water inlet 16 Additive 23, 23A, 23B Movable shielding member Aa Air reservoir Aw Inundation area w Opening Width h Opening height S1 Additive storage chamber S2 Purification chamber

Claims (5)

In a case where at least the upper part is formed in a substantially cylindrical shape, a purification chamber for purifying water and an additive storage chamber for storing an additive to be added to water are formed,
A water inlet for introducing water into the additive storage chamber and a second water inlet for bypassing the additive storage chamber and introducing water into the purification chamber are formed in the case, and the water inlet is connected to the second guide. While placed above the water mouth ,
In the case, a substantially bottomed cylindrical movable shielding member for variably setting the opening area of the water guide openings, provided so as to cover the outside of the mounting Rutotomoni the case so as to cover the upper portion of the case from above,
Forming a plurality of the lengths of the water inlets as a long and narrow slit-like opening along the circumferential direction of the case from the top to the bottom and arranging them at a certain pitch up and down,
The movable shielding member is attached to the case so that a lateral position can be variably set ,
A water purification cartridge characterized in that the number of shielding of the water inlet is variably set by variably setting the position of the movable shielding member in the lateral direction . In a case where at least the upper part is formed in a substantially cylindrical shape, a purification chamber for purifying water and an additive storage chamber for storing an additive to be added to water are formed ,
A water inlet for introducing water into the additive storage chamber and a second water inlet for bypassing the additive storage chamber and introducing water into the purification chamber are formed in the case, and the water inlet is connected to the second guide. While placed above the water mouth ,
A substantially bottomed cylindrical movable shielding member that variably sets the opening area of the water inlet in the case is provided so as to cover the upper part of the case from above and to cover the outside of the case,
The movable shielding member is attached to the case so that the position in the vertical direction can be variably set,
A water purification cartridge characterized in that the opening height of the water inlet is variably set by variably setting the vertical position of the movable shielding member. Forming an air reservoir in the upper part of the additive storage chamber, and soaking the additive in water introduced through the water inlet in a submerged area below the air reservoir;
3. The water purification cartridge according to claim 1 , wherein the additive is accommodated in the additive storage chamber from a portion serving as the flooded area to a portion serving as the air pool. 4. The water purification cartridge according to claim 3 , wherein the upper limit of the flooded area is variably set by variably setting the vertical position of the movable shielding member. A water purifier in which the water purification cartridge according to any one of claims 1 to 4 is detachably mounted.

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