Water purifier cartridge, water purifier including the same, and water purification member

Abstract

The present invention is a cartridge that is used for a water purifier and can be mounted to a container having a water storing part with an opening in the upper portion thereof and also having a lid that closes the opening of the water storing part, the lid having a discharge outlet for discharging water stored in the water storing part. The cartridge comprises a support having a peripheral wall section shaped in a cylindrical form and also having a closed section at which one end of the support in an axial direction is closed and which has a ventilation hole formed therein, with the other end in said axial direction being open, and a filter member supported by the support along said outer peripheral wall. The support is configured to be detachably mounted to the container, configured such that a closed space is defined between the internal volume of the support and the lid when the support is mounted to the container, and configured such that water in the water storing part flows from the exterior of said outer peripheral wall into said internal volume through the filter member and can be discharged from the discharge outlet via said internal volume.

Description

[Technical field]

[0001] The present invention relates to a water purifier cartridge, a water purifier including the same, and a water purification member. [Background technology]

[0002] In recent years, various types of water purifiers have been proposed. For example, in Patent Document 1, a cylindrical filter member is provided inside the main body of a portable water supply device, and purified water that has passed through the filter member can be drunk from the drinking spout of the main body of the portable water supply device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-2529 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0004] The water purifier is configured to filter water passing from the bottom to the top of a cylindrical filter member. However, this configuration has a problem that the water passes a long distance, resulting in a large pressure loss and a slow filtration speed. The present invention has been made to solve the above problem, and aims to provide a water purifier cartridge, a water purifier including the cartridge, and a water purifying member that can increase the filtration speed. [Means for solving the problem]

[0005] The present invention is a cartridge for a water purifier that is attached to a container having a water storage section with an opening at the top, and a lid body that has an outlet for discharging water stored in the water storage section and closes the opening of the water storage section, the cartridge comprising: a support having a cylindrically formed peripheral wall section, a closing section that closes one axial end of the peripheral wall section and has an air hole formed therein, the other axial end of the peripheral wall section being open, and a filter member supported on the support section so as to fit along the peripheral wall section, the support being configured to be removably attached to the container, and when the support is attached to the container, a closed space is formed between the internal space of the support and the lid, and water in the water storage section flows from the outside of the peripheral wall section into the internal space through the filter member, and can be discharged from the outlet through the internal space.

[0006] The cartridge can be attached to the container such that the air hole is located on the opposite side to the outlet port with respect to the axis of the support.

[0007] In the above cartridge, the filter member is formed in a sheet shape, and the peripheral wall portion of the support body can include an inner tube configured to be permeable to water, and an outer tube placed over the inner tube and configured to be permeable to water, and the filter member can be arranged around approximately the entire circumference between the inner tube and the outer tube.

[0008] In the above cartridge, the filter member can be wrapped around the entire circumference of the inner tube so that one circumferential end and the other circumferential end overlap, and a recess can be formed on the inner surface of the outer tube to accommodate the portion of the filter member where the one end and the other end overlap.

[0009] In the above cartridge, the filter member may be formed in a cylindrical shape so as to detachably cover at least one of an outer surface and an inner surface of the peripheral wall portion of the support body.

[0010] In the above cartridge, the filter member may be made of felt.

[0011] The water purifier of the present invention comprises a container having a water storage section with an opening at the top, an outlet for discharging water stored in the water storage section, and a lid for closing the opening of the water storage section, and a cartridge as described above that can be attached and detached to the container.

[0012] The water purification member of the present invention is a water purification member that is attached to a water storage section having an opening at an upper part, and has an outlet for discharging water stored in the water storage section, and comprises a lid body that closes the opening of the water storage section, a cylindrically formed peripheral wall section, and a closing section that closes one axial end of the peripheral wall section and has an air hole formed therein, and comprises a support body on the peripheral wall section, the other axial end of which is open, and a cylindrical filter member that is removably attached to the support body so as to cover at least one of the inner and outer surfaces of the peripheral wall section, the other end of the support body being configured to be removably attached to the lid body, and when the support body is attached to the lid body, a closed space is formed between the internal space of the support and the lid section, and water in the water storage section is configured to flow into the internal space through the filter member and be discharged from the outlet via the internal space.

[0013] In the above water purification member, a flange portion can be formed on the one end side of the support body, and the filter member can be supported between the flange portion and the lid body. Effect of the Invention

[0014] According to the present invention, the filtration rate can be increased. [Brief description of the drawings]

[0015] [Figure 1] 1 is a partially cutaway perspective view showing a first embodiment of a water purifier of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a perspective view of the cartridge as seen from above. [Figure 4] It is a perspective view of the cartridge seen from below. [Diagram 5] It is a perspective view of the inner cylinder. [Figure 6] It is a perspective view of the outer cylinder seen from above. [Figure 7] It is a perspective view of the outer cylinder seen from below. [Figure 8] It is a perspective view of the inner cylinder with the filter member wound around it. [Figure 9] It is a view taken in the direction of the arrow A-A of FIG. 3. [Figure 10] It is a plan view for explaining the assembly of the cartridge. [Figure 11] It is a cross-sectional view for explaining the usage method of the water purifier. [Figure 12] It is a partially cutaway perspective view showing a second embodiment of the water purifier of the present invention. [Figure 13] It is an exploded perspective view of FIG. 12. [Figure 14] It is a plan view of the lid body. [Figure 15] It is a cross-sectional view of FIG. 14. [Figure 16] It is a plan view of the support body. [Figure 17] It is a cross-sectional view of FIG. 16. [Figure 18] It is a cross-sectional view of the support body and the filter member. [Figure 19] It is a plan view of the lid body and the support body. [Figure 20] It is a plan view of the lid body and the support body. [Figure 21] It is a cross-sectional view of the water purification member after assembly. [Figure 22] It is a cross-sectional view for explaining the usage method of the water purifier.

Mode for Carrying Out the Invention

[0016] <A. First Embodiment> <1. Outline of the Water Purifier> Hereinafter, an embodiment of a water purifier having a water purifier cartridge and a container to which the cartridge is attached according to the present invention will be described with reference to the drawings. Fig. 1 is a perspective view of a water purifier according to this embodiment with a part cut away. As shown in Fig. 1, this water purifier includes a container (tumbler) 1 and a cartridge 2 housed therein. These will be described in detail below.

[0017] <2. Overview of the container> As shown in Fig. 1, container 1 has an opening at the top and includes water storage section 11 for storing water, and lid 12 for closing the top opening of water storage section 11. Water storage section 11 is formed in a cylindrical shape with an open top.

[0018] FIG. 2 is a perspective view of the lid body seen from the bottom. As shown in FIG. 1 and FIG. 2, the lid body 12 has a cylindrical attachment part 121 and a lid body 122 that closes the upper part of the attachment part 121. The attachment part 121 is adapted to be detachably attached to the upper opening of the water storage part 11. Therefore, the outer diameter of the attachment part 121 and the inner diameter of the upper opening of the water storage part 11 are approximately the same size. In addition, an annular O-ring (not shown) is attached to the outer peripheral surface of the attachment part 121 over the entire circumferential direction, and this O-ring is disposed between the inner peripheral surface of the upper opening of the water storage part 11 and the outer peripheral surface of the attachment part 121, thereby fixing both of them liquid-tightly. Note that the method of fixing the attachment part 121 to the water storage part 11 is not particularly limited as long as it is detachable, and various modes such as a screw type can be used.

[0019] The lid body is formed in a disk shape, and its outer diameter is slightly larger than that of the attachment part. The lid body 122 is also formed with a circular drinking spout (discharge port) 123 at a position radially outwardly shifted from the center, and water in the water storage part 11 is discharged through this drinking spout 123. The drinking spout 123 is formed to be large enough to discharge water, and when a user puts his / her mouth to it, water can be drunk from the drinking spout 123, but at the same time, air flows into the drinking spout 123 from the outside. Although not shown, a closing member that closes the drinking spout 123 in an openable and closable manner is attached to the lid body 122.

[0020] <3. Cartridge Overview> Next, the cartridge 2 will be described with reference to Figures 3 and 4. Figure 3 is a perspective view of the cartridge as seen from above, and Figure 4 is a perspective view of the cartridge as seen from below. As shown in Figures 3 and 4, the cartridge 2 includes a cylindrical inner tube 3, a cylindrical outer tube 4 into which the inner tube 3 is fitted, and a filter member 5 disposed between the inner tube 3 and the outer tube 4, and the upper end of the inner tube 3 is removably attached to the lid 12 of the container 1. Each member will be described in detail below.

[0021] <3-1. Inner cylinder> FIG. 5 is a perspective view of the inner cylinder from above. As shown in FIG. 5, the inner cylinder 3 includes a cylindrical peripheral wall portion 31 with an open upper and lower portion, and a flange portion 32 that is circular in plan view and extends radially outward from the upper end of the peripheral wall portion 31. A plurality of rectangular through holes 311 are formed in the peripheral wall portion 31, and the outside of the inner cylinder 3 communicates with the internal space through the through holes 311. A recess (not shown) is formed in the outer peripheral surface of the flange portion 32 over the entire circumferential direction, and an annular O-ring 33 is fitted into the recess. As will be described later, the cartridge 2 is configured such that the outer peripheral surface of the flange portion 32 is detachably fixed to the inner peripheral surface of the mounting portion 121 of the lid body 12. At this time, the O-ring 33 is disposed between the outer peripheral surface of the flange portion 32 and the inner peripheral surface of the mounting portion 121, so that the two are fixed liquid-tightly. In addition, an arc-shaped recess 321 is formed in a part of the upper surface of the flange portion 32. The material for forming the inner cylinder 3 is not particularly limited, and it can be made of various materials such as resin materials, metals, etc. This also applies to the outer cylinder 4 and the container 1.

[0022] <3-2. Outer cylinder> FIG. 6 is a perspective view of the outer cylinder from above, and FIG. 7 is a perspective view of the outer cylinder from below. As shown in FIGS. 6 and 7, the outer cylinder 4 has a cylindrical peripheral wall portion 41 and a closing portion 42 that closes the lower portion of the peripheral wall portion 41, and the upper portion of the peripheral wall portion 41 is open. The inner diameter of the peripheral wall portion 41 is slightly larger than the outer diameter of the peripheral wall portion 31 of the inner cylinder 3, and the filter member 5 is disposed in this gap. However, since the outer diameter of the peripheral wall portion 41 of the outer cylinder 4 is smaller than the outer diameter of the flange portion 32 of the inner cylinder 3, when the cartridge 2 is attached to the container 1, a gap is formed between the peripheral wall portion 41 of the outer cylinder 4 and the inner peripheral surface of the water storage portion 11. Therefore, the water in the water storage portion 11 flows into the inside of the outer cylinder 4 through this gap. In addition, the vertical length of the peripheral wall portion 41 is approximately the same as the vertical length of the peripheral wall portion 31 of the inner cylinder 3.

[0023] The peripheral wall 41 of the outer tube 4 has a plurality of rectangular through holes 411 formed therein, similar to the inner tube 3, and the outside of the outer tube 4 communicates with the internal space via these through holes 411. A protrusion 412 extending in the axial direction is formed on a part of the outer peripheral surface of the peripheral wall 41, and a recess 413 extending in the axial direction is formed on the inner peripheral surface of the peripheral wall 41 to correspond to this protrusion 412. A circular air hole 421 is formed in the closing portion 42 at a position shifted radially outward from its center, and the outside of the outer tube 4 communicates with the internal space via this air hole 421.

[0024] <3-3. Filter materials> The filter member 5 is formed of a sheet-like felt, and is disposed between the inner cylinder 3 and the outer cylinder 4 as described above. In the present invention, felt refers to a nonwoven fabric, and examples of such fabric include needle-punched nonwoven fabric and wet-laid papermaking nonwoven fabric. This also applies to the second embodiment described below. The thickness of the filter member 5 is preferably, for example, 1 to 5 mm, and more preferably 2 to 4 mm. The apparent density of the filter member 5 is, for example, 0.05 to 0.25 g / cm. 3 and 0.05 to 0.15 g / cm 3 are preferred.

[0025] FIG. 8 is a perspective view of the inner tube to which the filter member is attached, and FIG. 9 is a cross-sectional view of line AA in FIG. 3. As shown in FIG. 8, the filter member 5 is wound around the outer surface of the peripheral wall portion 31 of the inner tube 3. Therefore, the vertical length of the filter member 5 is almost the same as the vertical (axial) length of the peripheral wall portion 31 of the inner tube 3. The circumferential length of the filter member 5 is slightly longer than the circumferential length of the peripheral wall portion 31. Therefore, when the filter member 5 is wound around the peripheral wall portion 31, one end and the other end in the circumferential direction overlap, and this overlapping portion 51 is fixed by adhesive, heat fusion, or the like. Therefore, this overlapping portion 51 bulges out more than the other portions and extends along the axial direction of the peripheral wall portion 31. Then, as shown in FIG. 9, this overlapping portion 51 is disposed in the recess 413 of the peripheral wall portion 41 of the outer tube 4.

[0026] The material for forming the filter member 5 is not particularly limited as long as it can filter water, and can be formed, for example, by a felt made of activated carbon fiber. The above-mentioned felt can contain granular activated carbon, zeolite, ion exchange fiber, ion exchange resin, chelating fiber, ceramic, calcium sulfite, hollow fiber, etc., in addition to activated carbon fiber. In particular, from the viewpoint of further improving the antibacterial property of the felt during storage of the water purifier of the present invention, it is preferable to have an activated carbon fiber that does not support an antibacterial agent and one or more selected from the group consisting of activated carbon fiber, granular activated carbon, and zeolite that support an antibacterial agent, and from the viewpoint of further easily maintaining the antibacterial property even after long-term use, it is more preferable to have an activated carbon fiber that does not support an antibacterial agent and an activated carbon fiber or granular activated carbon kneaded with an antibacterial agent. The antibacterial agent kneaded into the activated carbon is preferably, for example, one or more metal simple substances or metal compounds selected from the group consisting of silver, zinc, and copper, and the metal compound is preferably a metal salt. Examples of silver salts include silver nitrate, silver acetate, silver sulfate, and silver acetylacetonate, examples of zinc salts include zinc nitrate, zinc acetate, and zinc sulfate, and examples of copper salts include copper nitrate, copper acetate, and copper sulfate.Furthermore, the felt preferably contains a binder component, and examples of the binder component include pulp and heat-fusible fibers.

[0027] <3-4. Assembly of the cartridge> Next, the assembly of the cartridge will be described with reference to FIG. 10. FIG. 10 is a plan view of the cartridge. First, as shown in FIG. 8, the filter member 5 is wound around the peripheral wall portion 31 of the inner cylinder 3, one end portion and the other end portion in the circumferential direction are overlapped, and this overlapping portion 51 is fixed by adhesive or heat fusion. Next, the inner cylinder 3 to which the filter member 5 is attached is fitted into the outer cylinder 4. In this process, as shown in FIG. 10, the recess 321 of the flange portion 32 of the inner cylinder 3 and the air hole 421 of the outer cylinder 4 are adjusted so that they are positioned opposite each other across the axis L of the inner cylinder 3. In this way, the assembly of the cartridge is completed.

[0028] <4. How to use the water purifier> Next, a method of using the water purifier configured as above will be described. First, the flange portion 32 of the cartridge 2 is fitted into the inner peripheral surface of the mounting portion 121 of the lid body 12. At this time, the flange portion 32 is positioned in the circumferential direction so that the recess 321 of the flange portion 32 is located on the same side as the drinking spout 123 of the lid body 12. When the cartridge 2 is attached to the lid body 12 in this manner, the internal space of the inner cylinder 3 of the cartridge 2 is liquid-tightly closed by the lid main body 122 of the lid body 12, forming a closed space.

[0029] Next, after water is stored in the water storage section 11, the lid body 12 with the cartridge 2 attached thereto is attached to the water storage section 11. When the user wants to drink the water in the water purifier, the user places the drinking spout 123 in contact with the user's mouth and tilts the water purifier so that the drinking spout 123 faces downward, as shown in FIG.

[0030] As a result, the water stored in the water storage section 11 passes through the through hole 411 of the outer tube 4 of the cartridge 2, via the filter member 5, and through the through hole 311 of the inner tube 3, and enters the internal space of the inner tube 3. The water that has entered the internal space is then discharged from the drinking spout 123 of the lid body 12, and is drunk by the user. In this process, the water is filtered by passing through the filter member 5, becomes purified water, and enters the internal space of the inner tube 3. This purified water is discharged from the drinking spout 123, but outside air flows in from the drinking spout 123 and enters the internal space. The air that accumulates in the internal space is then discharged from the air hole 421 into the water storage section 11. As a result, the purified water in the internal space is smoothly discharged from the drinking spout 123.

[0031] When the water purification function is reduced due to, for example, clogging of the filter member 5, the cartridge 2 can be replaced. That is, the cartridge 2 can be removed from the lid body 12, and a new cartridge 2 can be attached to the lid body 12.

[0032] <5.Features> As described above, the water purifier according to this embodiment has the following advantages. (1) In this embodiment, the cartridge 2 has cylindrical inner and outer cylinders 3 and 4, and a sheet-like filter member 5 is attached between the peripheral walls 31, 41 of the inner and outer cylinders. That is, since the filter member 5 is formed in a cylindrical shape, the surface area through which water passes in the filter member 5 can be increased. This increases the filtration speed and extends the life of the filter member 5. In particular, by increasing the outer diameter of the cartridge 2, the surface area of ​​the filter member 5 can be increased, thereby further increasing the filtration speed and further extending the life of the filter member 5.

[0033] (2) Since the filter member 5 is formed in a sheet shape and has a small thickness, the pressure loss of the water passing through can be reduced. Therefore, the filtration speed can be improved, and the purified water can be quickly drunk.

[0034] (3) Since the air hole 421 of the outer cylinder 4 is formed on the opposite side of the drinking spout 123 of the lid 12 with respect to the axis L, air in the internal space of the inner cylinder 3 can be efficiently discharged. That is, when the container 1 is tilted so that the drinking spout 123 is downward when drinking water, the air hole 421 is relatively located at the upper part of the cartridge 2. This makes it easier for air to escape. In particular, in a tilted container 1, the air hole 421 is located above the center of the filter member 5 in the vertical direction, so that the water passing through the filter member 5 is less likely to impede the discharge of air.

[0035] <6. Variations> Although the first embodiment of the present invention has been described above, the present invention is not limited to the first embodiment, and various modifications are possible without departing from the spirit of the present invention. The following modifications can be appropriately combined.

[0036] (1) The filter member 5 may be made of a material other than felt, for example, a cloth made of activated carbon fibers, a block carbon obtained by compressing and molding granular activated carbon, or granular activated carbon packed in a bag. The shape of the filter member 5 is not particularly limited, and in addition to a filter member having a constant thickness, a filter member having a variable thickness may also be used. This point is the same in the second embodiment described later.

[0037] (2) In the above embodiment, the closing portion 42 is provided in the outer cylinder 4, but the closing portion may be provided in the inner cylinder 3. In other words, it is sufficient that a cylindrical internal space is formed in the cartridge 2 and an air hole is formed in the closing portion that closes the internal space from below.

[0038] (3) The outer shape of the cartridge 2 does not have to be cylindrical, and may be a square tube (or a polygonal tube), or may have an irregular cross section. In the above embodiment, the inner tube 3 and the outer tube 4 are formed with a plurality of through holes 311, 411 through which water passes, but this is not limited thereto. In other words, as long as water passes through these peripheral wall portions 31, 41, the peripheral wall portions of the inner tube 3 and the outer tube 4 may be formed of a porous material, for example.

[0039] (4) In the above embodiment, the filter member 5 is provided between the inner tube 3 and the outer tube 4, but the cartridge 2 does not necessarily have to have the inner tube 3 and the outer tube 4. The cartridge 2 may be formed by a cylindrical support, and the filter member 5 may be supported on at least one of the inside and outside of the peripheral wall so that water can pass through. In this case, a filter member formed in a cylindrical shape in advance may be used. However, the form and mounting method of the filter member are not particularly limited, and for example, the filter member may be attached to a part of the peripheral wall rather than the entirety. In addition, the filter member may be detachably attached to the support, so that only the filter member can be replaced.

[0040] (5) There is no particular limitation on the means for detachably attaching the cartridge 2 to the lid 12. It is sufficient that the cartridge 2 is attached to the lid 12 so that at least a gap through which water can pass is formed between the outer circumferential surface of the cartridge 2 and the inner circumferential surface of the water storage section 11. Therefore, the cartridge 2 does not necessarily require the flange portion 32.

[0041] (6) The position of the air hole 421 is not particularly limited, but as described above, it is preferable to provide it on the opposite side across the axis L of the inner cylinder 3. This is the same in the second embodiment described later.

[0042] (7) In the above embodiment, as an embodiment of the container of the present invention, a container (tumbler) that a user directly puts their mouth on to drink water was exemplified. However, the present invention is not limited to this. As long as the stored water is filtered by a cartridge and discharged, its shape and use are not particularly limited. Further, the container only needs to have a water storage part for storing water and a lid that closes the upper opening thereof and has a discharge port. As long as a cartridge can be detachably attached to the lid and the above-described closed space can be formed, the configuration of the lid is not particularly limited either.

[0043] <B. Second Embodiment> <1. Overview of the Water Purifier> Hereinafter, an embodiment of a water purifier having a water purification member according to the present invention and a water storage part to which this is attached will be described with reference to the drawings. FIG. 12 is a perspective view in which a part of the water purifier according to this embodiment is cut away, and FIG. 13 is an exploded perspective view of FIG. 12. As shown in FIG. 12, this water purifier includes a tumbler-shaped water storage part 6 and a water purification member 70 attached thereto. Hereinafter, these will be described in detail.

[0044] <2. Water Storage Part> As shown in FIG. 13, the water storage part 6 has a cylindrical outer wall part 61 for storing water and a bottom wall part 62 that closes the lower end part of this outer wall part 61, and the upper part is open. And a male screw 63 for attaching the lid 7 of the water purification member 70 described below is formed at the upper end part of the outer wall part 61.

[0045] <3. Water Purification Member> As shown in FIGS. 12 and 13, the water purification member 70 includes a lid 7 that detachably closes the upper opening of the water storage part 6, a support 8 attached to the lower side of this lid 7, and a filter member 9 detachably attached to this support 8. Hereinafter, these will be described in detail.

[0046] <3-1. Lid> FIG. 14 is a plan view of the lid, and FIG. 15 is a cross-sectional view of FIG. 14. As shown in FIGS. 12 to 15, the lid 7 has a cylindrical attachment portion 71 and a disk-shaped lid body 72 that closes the upper portion of the attachment portion 71. The attachment portion 71 is adapted to be detachably attached to the upper opening of the water storage portion 6. For this purpose, an internal thread 711 that screws into the external thread 63 of the water storage portion 6 is formed on the inner wall surface of the attachment portion 71. An annular O-ring 725 is attached to the lower surface of the lid body 72 in the entire circumferential direction at a portion that contacts the upper end surface of the outer wall portion 61 of the water storage portion 6, and the lid 7 and the water storage portion 6 are fixed liquid-tight by the O-ring 725. The method of fixing the attachment portion 71 and the water storage portion 6 is not particularly limited as long as it is detachable, and various modes other than the screw type can be used.

[0047] A circular discharge port 721 is formed in the center of the lid body 72. Four arc-shaped protrusions 722 protruding radially inward are formed on the lower part of the inner wall surface of this discharge port 721 with gaps 723 in the circumferential direction. That is, the gaps 723 between the protrusions 722 are formed at 90 degree intervals in the circumferential direction. Also, at one end of each protrusion 722 in the circumferential direction, a notch 724 extending in the circumferential direction is formed in a portion adjacent to the gap 723.

[0048] <3-2.Support> FIG. 16 is a plan view of the support, and FIG. 17 is a cross-sectional view of FIG. 16. As shown in FIG. 13, FIG. 16, and FIG. 17, the support 8 has a cylindrical peripheral wall portion 81 and a closing portion 82 that closes the lower portion of the peripheral wall portion 81, and the upper portion of the peripheral wall portion 81 is open. A plurality of rectangular through holes 811 are formed in the peripheral wall portion 81, and the outside of the support 8 communicates with the internal space through the through holes 811. In addition, four engagement portions 83 are formed at the upper end of the peripheral wall portion 81 at 90 degree intervals in the circumferential direction, and these are adapted to engage with the protruding portion 722 of the cover body 7 described above. Each engagement portion 83 has a first portion 831 extending upward and a second portion 832 that protrudes radially outward from the first portion 831.

[0049] A circular air hole 821 is formed in the closing portion 82 at a position shifted radially outward from its center, and the outside of the support body 8 communicates with the internal space via this air hole 821. In addition, a flange portion 822 that protrudes radially outward beyond the peripheral wall portion 81 is formed around the closing portion 82.

[0050] <3-3. Filter materials> The filter member 9 is formed in a cylindrical shape with the upper and lower ends in the axial direction being open, and is formed by laminating a plurality of layers of sheet-like felt. The inner diameter of the filter member 9 is larger than the outer diameter of the engagement portion 83 of the support 8, and the outer diameter of the filter member 9 is smaller than the outer diameter of the flange portion 822 of the support 8. The thickness of the filter member 9 is preferably, for example, 3 to 12 mm, and more preferably 5 to 9 mm. The apparent density of the filter member 5 is, for example, 0.10 to 0.40 g / cm. 3 and 0.10 to 0.20 g / cm 3 are preferred.

[0051] <4. How to assemble the water purification components> Next, a method of assembling the water purification member will be described. First, the peripheral wall portion 81 of the support body 8 is inserted into the internal space of the filter member 9, and the lower end portion of the filter member 9 is supported by the flange portion 822, as shown in FIG.

[0052] Next, the lid 7 is attached to the support 8. This will be described with reference to Figs. 19 to 21. Figs. 19 and 20 are plan views of the lid and support. However, in these drawings, the support 8 is hatched for ease of explanation. Also, Fig. 20 is a cross-sectional view of the water purification member after assembly.

[0053] First, as shown in FIG. 19, the four engagement parts 83 of the support 8 are positioned below the four gaps 723 of the lid 7, and each engagement part 83 is inserted into each gap 723. At this time, the second part 832 of the engagement part 83 is positioned above the protruding part 722 of the lid 7. Then, the support 8 is rotated counterclockwise. As a result, as shown in FIG. 20, the first part 831 of the engagement part 83 engages with the notch 724, and the second part 832 engages with the upper surface of the protruding part 722. In this way, the engagement part 83 is prevented from coming off, and the support 8 is fixed to the lid 7. Also, at this time, as shown in FIG. 21, the upper end surface of the filter member 9 abuts against the lower surface of the lid body 72. As a result, a space for the purified water to flow in is formed by the filter member 9, the closing part 82, and the flange part 822. In this way, the assembly of the water purification member 70 is completed.

[0054] <5. How to use the water purifier> Next, a method of using the water purifier configured as above will be described. First, after water is stored in the water storage section 6, the water purification member 70 is attached to the water storage section 6 as shown in Fig. 12. Then, when discharging the water from the water purifier, the water purifier is tilted so that the outlet 721 faces downward as shown in Fig. 22.

[0055] As a result, the water stored in the water storage section 6 passes through the through-holes 811 of the support 8 via the filter member 9 of the water purification member 70, and enters the internal space of the peripheral wall section 81. The water that has entered the internal space is then discharged from the outlet 721 of the cover 7. In this process, the water is filtered as it passes through the filter member 9, and becomes purified water, which then enters the internal space of the peripheral wall section 81. This purified water is discharged from the outlet 721, but external air flows in from the outlet 721 and enters the internal space. The air that has accumulated in the internal space is then discharged from the air hole 821 into the water storage section 6. As a result, the purified water in the internal space is smoothly discharged from the outlet 721.

[0056] When the water purification function is reduced due to clogging of the filter member 9, it is possible to replace only the filter member 9. That is, after removing the support 8 from the lid 7 and removing the filter member 9 from the support 8, a new filter member 9 can be attached to the support 8.

[0057] <6. Features> As described above, the water purifier according to this embodiment has the following advantages. (1) In this embodiment, it is possible to obtain the same advantages as those (1) to (3) described in the section on the advantages of the first embodiment.

[0058] (2) Because the filter member 9 is detachable from the support 8 and the lid 7 is detachable from the support 8, only the filter member 9 can be replaced. Therefore, the support 8 and the lid 7 can be used repeatedly, so that an environmentally friendly water purification member 70 can be provided.

[0059] <7. Variations> Although the second embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications are possible without departing from the spirit of the present invention. The following modifications can be appropriately combined.

[0060] (1) In this embodiment, a cover member for freely opening and closing the outlet 721 of the cover body 7 is omitted, but it can be provided as appropriate. Also, the shape of the outlet 721 or the cover member covering it can be adjusted so that the user can drink the purified water by directly putting it to their mouth.

[0061] (2) The method of fixing the support body 8 and the lid body 7 is not particularly limited, and a method other than fixing them by the engagement portion 83 and the protrusion portion 722 as described above may be used as long as they are fixed in a detachable manner.

[0062] (3) In this embodiment, the filter member is disposed so as to cover the outer surface of the peripheral wall portion 81 of the support body 8. However, the filter member may be disposed so as to cover the inner surface.

[0063] (4) The shape of the water storage section 6 to which the water purification member 70 of this embodiment is attached is not particularly limited as long as it is configured to be able to store water and to allow the lid body 7 to be detachably attached. In addition, the form of the lid body 7 can also be appropriately changed according to the shape of the water storage section 6. [Explanation of symbols]

[0064] 1 container (tumbler) 11 Water storage section 12 Lid 123 Drinking spout (outlet) 2 Cartridge 3 Inner cylinder 31 Peripheral wall section 4 Outer cylinder 41 Peripheral wall section 413 Recess 42 Closing part 421 Air Vent 5 Filter parts 6. Water storage section 7 Lid 8 Support 9 Filter Materials 70 Water purification components

Claims

1. A water purification member attached to a water storage part having an opening at an upper part, a cover body having a drain port for draining water stored in the water storage section and for closing an opening of the water storage section; A support body including a cylindrical peripheral wall portion, a closing portion that closes one axial end of the peripheral wall portion and has an air hole formed therein, and the other axial end of the peripheral wall portion is open; a cylindrical filter member detachably attached to the support body so as to cover an outer surface of the peripheral wall portion; Equipped with The other end of the support is configured to be detachably attached to the lid, The water in the water storage section flows into the internal space of the support through the filter member, and is configured to be discharged from the outlet through the internal space, A flange portion is formed on the one end side of the support body, The filter member is supported between the flange portion and the lid body, The lid body is A cylindrical mounting portion; A disk-shaped lid body that closes an upper portion of the mounting portion; having The discharge port is a circular opening formed in the center of the lid body, and a plurality of arc-shaped protrusions protruding radially inward are formed at a lower portion of an inner wall surface of the discharge port with gaps in a circumferential direction, and each of the plurality of protrusions has a notch extending in a circumferential direction at one end in the circumferential direction in a portion adjacent to the gap, A plurality of engagement portions are formed at a predetermined interval in the circumferential direction on the upper end of the peripheral wall portion of the support body, and each of the plurality of engagement portions is A first portion extending upward; a second portion protruding radially outward from the first portion; Equipped with the first portion of each of the plurality of engagement portions engages with the notch of each of the plurality of protrusions, and the second portion of each of the plurality of engagement portions engages with an upper surface of each of the plurality of protrusions; The upper end surface of the filter member abuts against the lower surface of the lid main body of the lid body. Water purification components.

2. A gap is formed between the outer surface of the peripheral wall portion of the support body and the inner peripheral surface of the filter member. The water purification member according to claim 1 .

3. The filter member is formed by laminating a plurality of layers of sheet-like felt. The water purification member according to claim 1 or 2.

4. The thickness of the filter member is 3 to 12 mm. The water purification member according to any one of claims 1 to 3.

5. The thickness of the filter member is 5 to 9 mm. The water purification member according to claim 4.

6. The apparent density of the filter member is 0.10 to 0.40 g / cm 3 That is, The water purification member according to any one of claims 1 to 5.

7. The apparent density of the filter member is 0.10 to 0.20 g / cm 3 That is, The water purification member according to claim 6.

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