JP2909701B2 - Water quality improvement water storage container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water quality improvement water storage container, and more particularly to a water quality improvement water storage container capable of supplying high-quality drinking water by improving and filtering water quality in addition to storing water. .

[0002]

2. Description of the Related Art Water reservoirs having a mineral material and a filtering material have already been provided. In this container, a mineral material and a filter material are accommodated in an inner container for storing water, and the water in the inner container is repeatedly passed through the mineral material by an electric pump to return the water in the inner container. A pouring path for pouring out of the body by an electric pump. Coral stone and barley stone that elute mineral water into contacting water are used as mineral materials.

When a circulation path is operated by an electric pump,
Since the water stored in the inner container is repeatedly passed through the mineral material and the whole amount actively contacts the mineral material, the mineral content from the mineral material is efficiently and evenly distributed to the water in the inner container. The water eluted and stored can be converted to mineral water in a short time. In addition, when the discharge path is operated by an electric pump, the water that is stored in the inner container and turned into mineral water is poured out of the vessel through the filter, so that the mineral water is further converted to fine particles of mineral material and calcium. It can be poured and used as a clean product from which components and other foreign substances have been removed.

[0004]

However, when both the mineral material and the filtering material are accommodated in the inner container as in the above-mentioned conventional one, the water storage space formed in the inner container becomes complicated and narrow in shape. Inconvenient for cleaning the inside.

[0005] Further, since both the mineral material and the filter material are immersed in the stored water, when replacing the mineral material or the filter material in the stored water condition, humans are not allowed to enter the stored water. In such a case, the mineralized water had to be discarded, and in order to avoid this, it was necessary to use up the mineral water and replace the mineral and filter materials.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems, and a water quality reforming material such as a mineral material or a filtering material achieves a predetermined function outside the inner container. The main object of the present invention is to provide a water quality improvement water storage container which can solve the problem caused by being inside the water storage container and is convenient for handling and use.

[0007]

Means for Solving the Problems The water quality improving water storage container of the present invention has the following features in order to achieve the above object.
An inner container for storing water, a water quality improving material for improving the quality of the water, and a filtering material for filtering the water passing through the water quality improving material are provided, and the water in the inner container is converted into the water quality improving material by the first electric pump. A water quality improvement circulation path for circulating the water that has been supplied and passed through the water quality improvement material back into the inner container, and supplying the water in the inner container to the filter material by the second electric pump, and then discharging the water from the filter material to the outside of the body A cartridge that is provided so that it can be attached to and detached from a water quality improving container provided inside the container, wherein the water quality improving material and the filtering material are provided outside the inner container and provided inside the container, respectively. Wherein the filter material is a cartridge that is housed so as to be detachable from a filter provided inside the container.

[0008] The water quality improvement container may be one in which water is mineralized by a mineral material.

[0009]

It is preferable that each of the inner container, the water quality improvement container, and the filter is provided with an opening on the outer surface of the container and a lid for opening and closing each opening.

[0011] The cartridge of the water quality improving material is connected to a water quality improvement circuit at the bottom of the water quality improvement container in a state of being stored in the water quality improvement container, and the cartridge of the filter material is stored in the filter at the bottom of the filter. Is preferably connected to the filtration outlet.

[0012]

According to the above-described structure of the main feature of the water quality improvement water storage container of the present invention, the water quality improvement material is located outside the inner container, but the water in the inner container is operated by operating the water quality improvement circulation circuit by the first electric pump. Is circulated so as to repeatedly pass through the water quality improving material, so that the quality of the water in the inner container can be improved. In addition, although the filtering material is also located outside the inner container, the second electric pump operates the filtration / injection path to store water in the inner container and discharge water whose quality has been improved outside the inner container. Since the water for improving the quality of water is supplied to the filter medium and then discharged outside the vessel after passing through the filter medium, the water for improving the quality of the water in the inner container is removed by the fine particles, the calcium component and other foreign substances of the material for improving the quality of the water. It can be put out and used as a clean, removed material.

Moreover, since the water quality improving material and the filtering material are located outside the inner container and do not obstruct the inner container,
The inside of the inner container can be easily cleaned and kept clean.

Further, since the water quality improving material and the filtering material are located outside the inner container and provided inside the inner container together with the inner container and have a simple appearance that can be handled alone, it is easy to handle and convenient to use. be able to.

[0015] The cartridge is configured such that the water quality improving material is removably housed in a water quality improving container provided in the vessel, and the filter material is housed so as to be removable in a filter provided in the vessel. The replacement of the water quality improving material and the filter material can be easily performed by attaching and detaching the cartridge to and from the water quality improving container and the filter provided in the container, and the disposal of the water quality improving material and the filter material after use. Can be easily performed.

In the configuration in which the inner container, the water quality improvement container, and the filter are opened on the outer surface of the container and provided with lids for opening and closing the respective openings, the lids are closed to prevent intrusion of dust. By opening the lid as needed, water can be supplied to the inner container, the remaining water can be discharged by tilting the container, the water quality improving material in the water quality improving container and the filter can be opened through the openings. Various managements such as taking in and out each of the filter media and replacing them can be easily performed, so that it can be easily used continuously.

The cartridge for the water quality improvement material is connected to the water quality improvement circulation circuit at the bottom of the water quality improvement container in a state of being housed in the water quality improvement container, and the cartridge of the filter material is attached to the bottom of the filter in the state of being housed in the filter. In a configuration connected to a certain filtration / injection channel, the water quality improving material and the filtering material can be easily exchanged by attaching / detaching the cartridge to / from the water quality improving container and filter provided in the body, and the water quality improving material and the filtering material are stored in the storage state. The connection of the water quality improvement circulation path and the filtration and discharge path in the improvement vessel and the filter is made, and the apparatus is ready for use.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The water quality improvement water storage container of the present invention will be specifically described with reference to some embodiments.

A first embodiment of the present invention shown in FIGS. 1 to 3 is a water quality improvement container 3 for accommodating an inner container 1 for storing water and a water quality improvement material 2 for improving quality in a vessel 5. And a filter 4 containing a filter medium 11 for filtering water passing through the water quality improvement container 3. The water in the inner container 1 is supplied to the water quality improvement container 3 by the first electric pump 6, and the water quality improvement container 3 is provided. And a second electric pump 8 for supplying the water in the inner container 1 to the filter 4 and then removing the water that has flowed out of the filter 4 into the container. It has a filtration and pouring passage 9 for sending it out of the body 5, and the water quality improving material 2 and the filtering material 11 have a basic configuration located outside the inner container 1 and provided in the vessel 5.

As a result, the water quality improvement container 3 is located outside the inner container 1, but the water in the inner container 1 is moved into the water quality improvement container 3 by operating the water quality improvement circuit 7 by the first electric pump 6. Since the water is circulated so as to repeatedly pass through the water quality improving material 2, the water quality of the entire amount of water in the inner container 1 can be improved. The filter 4 is also located outside the inner container 1, but the second electric pump 8 operates the filtration / injection passage 9 to discharge water stored in the inner container 1 and improving the water quality to the outside of the inner container 5. At this time, the water for improving the quality of the water in the inner container 1 is supplied to the filter 4 and then discharged to the outside of the container 5 after passing through the filter material 11. The water quality improving material 2 can be poured and used as a clean product from which fine particles, calcium components, and other foreign substances have been removed.

Moreover, the water quality improving material 2 and the filtering material 11
Is located outside the inner container 1 and does not interfere with the inner container 1, so that the inner container 1 can be easily cleaned and kept clean. Further, as described above, since the water quality improving material 2 and the filtering material 11 are located outside the inner container 1 and provided in the container 5 together with the inner container 1, a simple appearance that can be handled alone is obtained. Therefore, it is easy to handle and convenient to use.

More specifically, as shown in FIGS. 1 and 2, the container body 5 is made of a synthetic resin body 14 having upper and lower ends opened.
And a shoulder member 31 made of synthetic resin
Is forcibly fitted and has a bottom cover 16 applied to the lower end opening from below, and a connection fitting 13 is provided between the bottom cover 16 and the fitting 12 welded to the bottom lower surface of the inner container 1. And screws 14 and 15. An inner container 1 having openings 17, 18, and 19 on the upper surface of a shoulder member 31 of the main body 14, a water quality improvement container 3, and a mounting port 2 for a filter 4.
1, 22, and 23 are integrally formed.

The inner container 1 is made of aluminum. As shown in FIG. 2, an outward flange 1a at the upper end is placed on an inward flange 21a integrally formed at the lower end of the mounting port 21 from below through a seal packing 24a. It is received and integrated with the inner container 1 together with the shoulder member 31 by connection with the bottom cover 16 by a connection fitting or by screwing (not shown) between the flanges 1a and 21a at this portion.

The water quality improvement container 3 is made of a synthetic resin and has a bottomed shape. The seal packing 24b is forcibly fitted to the outer periphery of the mounting port 22 at the upper end opening as shown in FIG.
Are connected through. A water quality improvement cartridge 25 containing the water quality improvement material 2 is accommodated in the water quality improvement container 3 so as to be detachable through the opening 18. The water quality improvement cartridge 25 includes a synthetic resin bottom member 25a,
The bottom member 25a is composed of a synthetic resin main body 25c which is screwed and fitted so that the lower end opening 25b can be attached and detached. A large number of outflow holes 25d are provided in the ceiling of the main body 25c. In the water quality improvement cartridge 25, antibacterial activated carbon 25e, shirako 25f, barley stone 25g, shirako 25
h, a coral stone 25j, a cage 25k, and other necessary processing materials and cages are sequentially stored.

The water quality improvement container 3 also includes an inflow port 3a formed at the center of the bottom member and an outflow port 1b at the bottom of the inner container 1 for the circulation of the water on the outward path 7a of the water quality improvement circulation path 7. In addition to the connection, the first electric pump 6 is provided in the middle of the forward path 7a. 7b. On the other hand, for the same purpose, the water quality improvement cartridge 25 has a connection port 251 formed so as to protrude downward at the center of the bottom member 25a in the state of being housed in the water quality improvement container 3, and is connected to the inflow port 3 at the bottom of the water quality improvement container 3.
A is connected to the water quality improvement circuit 7 in a fitted state in which the seal packing 26 is tightly fitted via the seal packing 26 but can be attached and detached by the elasticity of the seal packing 26.

Thus, when the first electric pump 6 operates, the water in the inner container 1 is sent through the water quality improvement circuit 7 into the water quality improvement cartridge 25 mounted on the water quality improvement container 3, and the antibacterial activated carbon 25e, 25g barley stone, coral stone 2
5j are sequentially transmitted and subjected to the antibacterial and purification treatments, and after the minerals are eluted, are returned to the inner container 1 again and circulated, so that the water in the inner container 1 is evenly distributed. Can be mineralized.

As described above, in this embodiment, the water quality improving container 3
Is a method in which circulated water is converted into mineral water by a water quality improving material 2 which is a mineral component. However, the present invention is not limited to this, and alkali water or other necessary treatment may be performed.

Further, when replacing the water quality improving material 2, the opening 18 in which the water quality improving cartridge 25 is handled as a single body is used.
It can be easily and quickly performed by replacement through the circumstance, and is convenient for disposal of used products.

The filter 4 has a bottomed shape made of synthetic resin, and is connected at its upper end opening through a seal packing 24c at a forcibly fitted portion 23a to an outer peripheral portion of the mounting port 23 as shown in FIG. . A filter cartridge 27 containing the filter medium 11 is accommodated in the filter 4 so as to be detachable through the opening 19. Filtration cartridge 27
Is composed of a synthetic resin-made bottomed body 27a and a synthetic resin lid 27c screwed and fitted so as to be detachable from the upper end opening 27b of the main body 27a. Is provided with a large number of hollow fiber membranes as the filter medium 11, and the water that has entered the filtration cartridge 27 flows out of the lid 27 c while being filtered by permeating through the filter medium 11 that is each hollow fiber membrane. The inside of the filter 4 is filled.

The filter 4 also has an inlet 4a formed at the bottom center of the main body 27a for filtering and discharging the water.
The other outlet 1d at the bottom of the inner container 1 is connected to the filtration outlet 9
At the base side of the forward path 9a,
a, the second electric pump 8 is provided in the middle of the filter 4, and an outlet 4 b at the upper part of the filter 4 is connected to the vessel 5 through the outlet 4 b.
Extends into the beak-shaped protrusion 5a provided on the shoulder member 31 so as to be located at the front of the beak-shaped protrusion 5a.
A distal end path 9c that opens downward from the inside to the outside of the vessel 5 is connected. On the other hand, for the same purpose, the filter cartridge 27 of the filter medium 11 is provided with a connection port 27d formed so as to protrude downward at the center of the bottom in a state of being housed in the filter 4 and a seal packing to the inlet 4a at the bottom of the filter 4. Although it is in a tightly fitted state through the fitting 28, it is connected to the filtration and pouring passage 9 in a fitted state that can be attached and detached by the elasticity of the seal packing 28.

Thus, when the second electric pump 8 operates, the water in the inner container 1 is fed into the filtration cartridge 27 mounted on the filter 4 through the filtration / injection passage 9, and the hollow fiber as the filtration material 11 After being filtered through the membrane, it is poured out of the container body 5 through the outlet 9b, so that the water whose quality has been improved as mineral water is always discharged and used by driving the second electric pump 8. be able to.

In addition, the filter medium 11 can be easily and quickly replaced by replacing the filter medium 11 through the opening 19 in which the filter cartridge 27 is handled as a single unit.
It is also convenient for disposal of used products.

The water quality improvement container 3 and the filter 4 are
The shoulder member 31 can be integrally formed with the respective openings 18 and 19, and the shoulder member 31 is
It can also be integrally molded with. However, how to divide and form what kind of material to form the vessel 5,
How to combine the divided parts can be freely designed in the present invention.

As shown in FIGS. 1 to 3, the opening 17 of the inner container mounting port 21 of the container 5, the opening 18 of the mounting port 22 of the water quality improvement container 3, and the opening 19 of the mounting port 23 of the filter 4 are provided.
Are provided with lids 41, 42 and 43. Opening 1
The lids 42, 43 of 8, 19 have a single wall structure made of synthetic resin, and are fitted to the openings 18, 19 by being screwed from above or the like so as to be detachable. For this purpose, the lids 42, 43 are integrally formed with fitting peripheral walls 42a, 43a fitted on the inner periphery of the openings 18, 19, and upward knob portions 42b, 43b for attaching and detaching to the openings 18, 19. The knobs 42b and 43b are located in recesses 42c and 43c provided on the upper surfaces of the lids 42 and 43, respectively.
43 so as not to protrude from the upper surface.

The lid 41 is made of synthetic resin and is hollow, and is pivotally supported by a shaft 44 at a part of the edge of the opening 19 of the inner container mounting port 21 so as to be opened and closed. On the upper surface of the free end of the lid 41, an upward knob portion 41b for opening and closing the opening 17 is formed integrally with the upper plate. The knob portion 41b is a concave portion 41c provided on the upper surface of the upper plate of the lid 41. So as not to protrude from the upper surface of the lid 41. Seal packing 2 at the joint between the upper plate and the lower plate of the lid 41
When the lid 9 is closed and the lid 41 is closed, the seal packing 29 comes into close contact with the outward flange 1 a of the inner container 1, so that the inner container 1 can be hermetically closed by the lid 41.

The free end of the lid 41 is provided with a lock member (not shown) which is engaged with and disengaged from the opening 17 as necessary. The lid 41 can be locked in a closed state by engaging with an engaging portion (not shown) provided, and the engagement can be released by an unlocking operation, and the lid 41 can be unlocked and opened. .

As described above, the inner container 1, the water quality improvement container 3, and the filter 4 are provided with the openings 17, 18, 19 on the upper surface of the container 5.
When the lids 41, 42, 43 are provided in the respective openings 17, 18, 19, the lids 41, 4
The lids 41, 42, and 43 are opened as necessary while the lids 2 and 43 are closed to prevent intrusion of dust, so that the water quality improvement container 3 and the filter 4 are opened through the openings 17, 18, and 19, respectively. The water quality improving material 2 and the filtering material 11 are taken in and out, and the replacement of these materials is managed, so that they can be used continuously. Water can be supplied to the inner container 1 and the container 5 can be tilted. It is also possible to freely carry out the disposal of residual water at the same time.

On the upper surface of the beak-shaped protrusion 5a of the vessel 5,
An operation panel 46 is provided for performing various mode settings and operation operations and performing various displays corresponding thereto.
The operation panel 46 has, for example, a water quality improvement button 51 and a pouring button 52.
The electric pump 6 is driven to operate the water quality improvement circuit 7,
When the dispensing button 52 is operated, the second electric pump 8 is driven, and the filtration and dispensing passage 9 is operated.

FIGS. 4 to 6 show a second embodiment of the present invention. In this embodiment, the outflow path 7a of the water quality improvement circulation path 7 is directly connected to the outlet 61 at the upper end of the water quality improvement cartridge 25, and the water after the water quality improvement is directly returned to the inner container 1, thereby improving the water quality. The point that the unused water in the container 3 can be prevented from increasing due to the spilling of the water into the unnecessary area, and that the area required for sanitary washing can be prevented from increasing, and the opening 19 of the container 5 can be prevented. Auxiliary pocket 66 leading to
By directly connecting the outlet port 62 at the upper end of the filter cartridge 27 to the outlet port 4b of the filter 4 which can be attached and detached inside, the filtered quality-improved water is directly poured out of the container body 5. The first point is that it is possible to prevent the amount of unused water from increasing due to the water spilling into an unnecessary area in the filter 4 or to increase the necessary range of sanitary washing. Is different from the embodiment.

The return path 7b from the water quality improvement cartridge 25 is a recess 63 formed in the shoulder so as to extend from the opening 18 of the water quality improvement container 3 to the opening 17 of the inner container 1. The water after the water quality improvement can be returned to the inner container 1 facing the opening 17. In addition, since the return path 7b is opened above the body 5, the water quality improving cartridge 2
5 can be attached to and detached from the container 5. As a result, the return path 7b becomes independent of the container 5 together with the water quality improving cartridge 25, which is convenient for washing and the like.

Further, a distal end passage 9c from the filtration cartridge 27 is also opened from the opening 19 of the filter 4 above the body 5 so as to be detachable together with the filtration cartridge 27. Each of the built-in filters 4 becomes independent from the body 5,
It becomes convenient for cleaning etc. When the tip passage 9c is mounted together with the filtration cartridge 27, the water discharged from the spout 9b flows into the injection guide 64 provided on the beak-shaped protrusion 5a while being released to the atmosphere, and is quiet without splash. The liquid is injected in a proper state. The filter 4 is composed of two members, a bottom member 27f and a main body 27h which can be elastically attached to and detached from the bottom member 27f by a forcibly fitting portion 27g in order to attach and detach the built-in filtration cartridge 27. doing.

In this embodiment, the lid 41 can be attached to and detached from the opening 17 alone, and the lid 42 can be attached and detached from the opening 18 alone, but the recess 63 is also opened and closed at the same time.
The lid 43 is attached to a part of the opening 19 by the shaft 65.
It is pivoted so that it can be opened and closed.

The other structure is not particularly different from the case of the first embodiment, and duplicate description will be omitted.

In each of the above embodiments, each of the openings 17-1
Although 9 is individually opened and closed by individual lids 41 to 43, specific ones or all of them can be opened and closed by one lid.

FIGS. 7 to 9 show a third embodiment of the present invention, in which a cooling means 71 is provided in the inner container 1 so that the water can be stored while cooling the quality-improved water. An opening 72 common to the water quality improvement container 3 and the filter 4 is provided, the opening 72 can be opened and closed by one lid 73, and the main body 14 has a bottomed shape and does not have another bottom lid. , Is different from the first embodiment. The other structure is the same, and the description is omitted.

As the cooling means 71, various means such as a method of circulating a refrigerant and a method using a Peltier element can be adopted. Further, the lid 73 is pivotally supported at its lower part by a shaft 74 so that it can be opened and closed. However, other structures can be adopted.

[0047]

According to the main feature of the water quality improvement water storage container of the present invention, the water quality improvement material is located outside the inner container, but the water quality improvement circulation circuit is operated by the first electric pump, so that the water quality improvement material in the inner container is improved. Since the water is circulated so as to repeatedly pass through the water quality improving material, it is possible to improve the water quality of the water in the inner container. In addition, although the filtering material is also located outside the inner container, the second electric pump operates the filtration / injection path to store water in the inner container and discharge water whose quality has been improved outside the inner container. Since the water for improving the quality of water is supplied to the filter medium and then discharged outside the vessel after passing through the filter medium, the water for improving the quality of the water in the inner container is removed by the fine particles, the calcium component and other foreign substances of the material for improving the quality of the water. It can be put out and used as a clean, removed material.

Moreover, since the water quality improving material and the filtering material are located outside the inner container and do not obstruct the inner container,
The inside of the inner container can be easily cleaned and kept clean.

Further, since the water quality improving material and the filtering material are located outside the inner container and provided inside the inner container together with the inner container, and have a simple appearance that can be handled alone, it is easy to handle and convenient to use. be able to.

A cartridge in which the water quality improving material is removably stored in a water quality improving container provided in the container, and a cartridge in which the filtering material is removably mounted in a filter provided in the container. The replacement of the water quality improving material and the filter material can be easily performed by attaching and detaching the cartridge alone to and from the water quality improving container and the filter provided in the container, and the disposal of the water quality improving material and the filter material after use. Processing can be performed easily.

In the configuration in which the inner container, the water quality improvement container, and the filter are opened on the outer surface of the container and provided with lids for opening and closing the respective openings, the lids are closed to prevent intrusion of dust. By opening the lid as needed, water can be supplied to the inner container, the remaining water can be discharged by tilting the container, the water quality improving material in the water quality improving container and the filter can be opened through the openings. Various managements such as taking in and out each of the filter media and replacing them can be easily performed, so that it can be easily used continuously.

When the cartridge of the water quality improving material is stored in the water quality improving container, the cartridge is connected to the water quality improving circulation circuit at the bottom of the water quality improving container, and the cartridge of the filtering material is stored in the filter at the bottom of the filter. In a configuration connected to a certain filtration / injection channel, the water quality improving material and the filtering material can be easily exchanged by attaching / detaching the cartridge to / from the water quality improving container and filter provided in the body, and the water quality improving material and the filtering material are stored in the storage state. The connection with the water quality improvement circulation path and the filtration discharge path provided in the improvement container and the filter is also performed, and the apparatus can be used.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a water quality improvement water storage container according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view including a filter of the water quality improvement water storage container of FIG. 1;

FIG. 3 is a cross-sectional view including the water quality improvement container of the water quality improvement water storage container of FIG. 1;

FIG. 4 is an external perspective view of a water quality improving water storage container according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view including a filter of the water quality improvement water storage container of FIG. 4;

FIG. 6 is a cross-sectional view including the water quality improvement container of the water quality improvement water storage container of FIG. 4;

FIG. 7 is an external perspective view of a water quality improvement water storage container according to a third embodiment of the present invention.

FIG. 8 is an external perspective view of the water quality improvement water storage container of FIG. 7 with a part of the lid opened.

9 is a cross-sectional view including a filter of the water quality improvement water storage container of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inner container 2 Water quality improvement material 3 Water quality improvement container 4 Filter 3a, 4a Inlet 5 Body 6 First electric pump 7 Water quality improvement circuit 8 Second electric pump 9 Filtration and discharge path 11 Filtration material 17, 18, 19, 72 Opening 25 Water quality improvement cartridge 27 Filtration cartridge 41, 42, 43, 73 Lid

Claims (4)

(57) [Claims] An inner container for storing water, a water quality improving material for improving the quality of water, and a filtering material for filtering water passed through the water quality improving material are provided in the body, and the content is provided by a first electric pump. After supplying the water in the vessel to the water quality improving material and returning the water passing through the water quality improving material back to the inner vessel and circulating the same, and supplying the water in the inner vessel to the filtering material by the second electric pump A water-improving container provided with a water-improving material and a filtering material, which are provided outside the inner vessel and provided in the housing, respectively, and a water-improving material is provided in the housing; A water quality improvement water storage device, wherein the cartridge is a cartridge that is removably stored in a filter, and the filter material is a cartridge that is removably stored in a filter provided in a container body. 2. The water quality improving water storage container according to claim 1, wherein the water quality improving material is a mineral water that is converted into mineral water by a mineral material. 3. The container according to claim 1, wherein each of the inner container, the water quality improvement container, and the filter has an opening on an outer surface of the container and a lid for opening and closing the opening. The water storage tank for improving water quality according to item 1. 4. A cartridge of a water quality improvement material is connected to a water quality improvement circulation circuit at the bottom of the water quality improvement container in a state stored in the water quality improvement container, and the filter material cartridge is stored in the filter. The water quality improvement water storage device according to claim 1, wherein the water quality improvement water storage device is connected to a filtration and discharge passage at a bottom portion of the water supply device.