JP3242057U - Water tank fixing device - Google Patents

Abstract

An object of the present invention is to provide a water tank fixing device that more smoothly supplies water from a water tank while suppressing water leakage to the outside.
A water supply device (1) is used in a supply device (1) having a water supply tank (2) and a storage part (4) provided below the water supply tank for storing water supplied from the water supply tank, and is formed in the upper part of the storage part. It is the water supply tank fixing device 5 provided in the opening 41 . The water supply tank fixing device includes a lid portion 51 and a holding portion 52 . The lid covers the opening. The holding portion holds the water supply port 21 provided in the water supply tank. Also, the holding part holds the water supply port at a position lower than the opening. The holding portion also has a first communication hole 522 at a position lower than the opening. The first communication hole is configured to communicate between the water supply tank and the storage unit, and communicates between the external space outside the supply device and the water supply tank.
[Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present disclosure relates to a water tank fixing device used in a supply device.

Patent Literature 1 describes a purified water supply apparatus in which a water supply tank for storing tap water or the like is installed, and the water in the water supply tank is filtered, led to a cooling tank, and stored. In the purified water supply device, water stored in a cooling tank is supplied from a cold water cock.

JP 2015-13691 A

By the way, in the purified water supply device as disclosed in Patent Document 1, it is desirable that the water in the cold water tank is smoothly supplied from the cold water cock when the user takes in drinking water. Moreover, it is desirable that water is smoothly supplied from the water supply tank to the cooling tank as well. For this reason, it is necessary to take air into the cooling tank and the water supply tank, but if a flow path for that purpose is provided, there is a problem that water tends to leak to the outside of the purified water supply device.

One aspect of the present disclosure is to provide a water tank fixing device that suppresses water leakage to the outside and more smoothly supplies water from the water tank.

One aspect of the present disclosure is used in a supply device that includes a water supply tank and a storage unit that is provided below the water supply tank and stores water supplied from the water supply tank. It is a water supply tank fixing device provided in the opening. The water tank fixing device includes a lid portion and a holding portion. The lid covers the opening. The holding part holds a water supply port provided in the water supply tank. Also, the holding part holds the water supply port at a position lower than the opening. Moreover, the holding part has a first communication hole at a position lower than the opening. The first communication hole is configured to communicate between the water supply tank and the storage section, and is configured to communicate between the external space outside the supply device and the water supply tank.

According to such a configuration, the water in the water supply tank 2 can be supplied more smoothly while suppressing water leakage to the outside.
First, the air that has flowed in from the external space flows into the water supply tank through the first communication hole. As a result, the water in the water supply tank is supplied to the reservoir through the first communication hole. In this way, the first communication hole is configured to communicate between the water supply tank and the storage unit, and is configured to communicate between the external space and the water supply tank, so that the water in the water supply tank can flow more smoothly. can supply.

Also, the water supplied from the water supply tank reaches the holding portion as the water surface rises. At this time, since the water blocks the first communication hole provided in the holding portion, air does not flow from the external space to the water supply tank side. Therefore, since water is no longer supplied from the water supply tank, water is no longer supplied to the storage unit. Therefore, it is possible to suppress leakage of water from the storage portion to the outside.

One aspect of the present disclosure may further include a partition wall that forms a water quality improvement channel, which is a channel through which water in the water supply tank flows into the filtration unit in which the water quality improvement material is arranged, and that extends downward from the lid. . A filtration unit may be disposed within the reservoir. The holding part may be arranged in the water quality improvement channel. The first communication hole may be configured to communicate between the water supply tank and the storage unit, and may be configured to communicate between the external space and the water supply tank via the water quality improvement channel.

According to such a configuration, the water in the water supply tank 2 can be supplied more smoothly while suppressing water leakage to the outside.
First, the air that has flowed into the water quality improvement channel from the external space flows into the water supply tank from the water quality improvement channel. As a result, water is supplied from the water supply tank to the filtration unit through the water quality improvement channel. Water that has passed through the filtration unit is stored in a reservoir and supplied to the user. Since the first communication hole communicates the water tank, the storage section, and the external space in this way, the water in the water tank can be supplied more smoothly.

Also, the water supplied from the water supply tank reaches the holding portion as the water surface rises. At this time, since the water blocks the first communication hole provided in the holding portion, air does not flow from the external space to the water supply tank side through the water quality improving channel. Therefore, since water is no longer supplied from the water supply tank, the water level in the water quality improvement channel does not rise. Therefore, it is possible to suppress the leakage of water from the water quality improvement channel to the outside.

One aspect of the present disclosure may further include a cap attached to the water inlet. The holding portion may include a protrusion that is a tubular portion that protrudes upward from the bottom surface of the holding portion. The first communication hole may be provided in the protrusion. The cap may comprise a fitting that is a tubular portion that fits onto the projection. The fitting portion may have a second communication hole configured to communicate with the first communication hole. Also, the fitting portion may have a first position, a second position, and a movable portion. The first position is below the second communication hole. The second position is above the second communication hole. Further, the movable portion may move from the first position to the second position when the water supply port is inserted into the holding portion with the cap attached to the water supply port. The second communication hole may communicate with the first communication hole when the movable portion is positioned at the second position.

According to such a configuration, when the movable portion is at the first position, the first communication hole and the second communication hole are not communicated with each other, so that it is possible to prevent water from flowing out of the water supply tank. On the other hand, when the movable portion is at the second position, the first communication hole and the second communication hole communicate with each other, so that water can flow out of the water supply tank. Therefore, water can flow out of the water supply tank only when the water supply port of the water supply tank is inserted into the holding portion.

In one aspect of the present disclosure, the lid portion may have a gap enlarging portion that protrudes from the lid portion and expands a gap formed between the water supply tank and the lid portion.
According to such a configuration, air can be easily sent from the gap formed between the water supply tank and the lid to, for example, a hole formed in the lid and communicating with the storage section. Therefore, the water in the reservoir can be supplied smoothly.

One aspect of the present disclosure may further include a reservoir valve. The reservoir valve is provided in the reservoir hole, which is a hole that communicates the reservoir and the external space. Further, the reservoir valve allows the fluid to flow from the external space to the reservoir, and at least when the water level in the reservoir reaches a certain level, the reservoir hole may be closed. good.

According to such a configuration, air can be sent into the storage portion by opening the storage portion hole with the storage valve portion. Therefore, at the time of water intake, the water in the storage section can be supplied smoothly. In addition, since the reservoir valve closes the reservoir hole, it is possible to suppress leakage of water from the reservoir to the outside.

In one aspect of the present disclosure, the reservoir valve section may be a float valve that is displaced by the buoyancy of water. A guide portion may be further provided for guiding the direction in which the storage valve portion is displaced.
According to such a configuration, when the storage valve portion is displaced upward, the guide portion can be suppressed from swinging to the left and right. Therefore, it is possible to suppress the lateral inclination of the reservoir valve part due to the water in the reservoir. Therefore, it is possible to avoid a situation in which the storage valve is tilted and the storage hole cannot be properly closed.

One aspect of the present disclosure may further include a flow path valve section. The flow channel valve portion is provided in the flow channel hole portion which is a hole that communicates the water quality improvement flow channel and the external space. In addition, the flow channel valve part allows fluid to flow from the external space into the water quality improvement flow channel, and at least when the water level in the water quality improvement flow channel reaches a certain level, the flow channel hole part is opened. may be closed.

According to such a configuration, air can be sent into the water quality improving channel by opening the channel hole by the channel valve. Therefore, since air can be sent into the water supply tank through the water quality improvement channel, water can be smoothly supplied from the water supply tank. In addition, since the flow path valve closes the flow path hole, it is possible to suppress the leakage of water from the water quality improvement flow path to the outside.

In one aspect of the present disclosure, powdered activated carbon may be used as the water quality improvement material.
According to such a configuration, the activated carbon can be spread so as to minimize the gaps between the activated carbons. Also, the area where water directly contacts the activated carbon can be increased. Therefore, purification performance can be improved.

It is a cross-sectional view of a purified water supply device. It is explanatory drawing when assembling a water supply tank and a filtration unit to a water supply tank fixing device. 3A is a front view, FIG. 3B is a plan view, FIG. 3C is a bottom view, FIG. 3D is a left side view, FIG. 3E is a right side view, and FIG. 3F is a rear view. be. 4A and 4B are perspective views of the water tank fixing device as viewed obliquely from above. 5A and 5B are perspective views of the water tank fixing device as viewed obliquely from below. 6A is a side view of the cap and FIG. 6B is a bottom view of the cap. 7A is a cross-sectional view of the cap, FIG. 7A being a view before the cap is attached to the water tank fixing device, and FIG. 7B is a view after the cap is attached to the water tank fixing device. FIG. 8A is a perspective view of a water tank fixing device in another embodiment when viewed obliquely from above, and FIG. 8B is a perspective view of the same device when viewed obliquely from below.

Exemplary embodiments of the present disclosure are described below with reference to the drawings.
[1. embodiment]
[1-1. overall structure]
A purified water supply device 1 shown in FIG. 1 is a water server for supplying purified water. The purified water supply device 1 is installed in a company, a home, or the like.

The purified water supply device 1 includes a water supply tank 2 and a body portion 3 . The body portion 3 includes a cold water tank 4 , a water tank fixing device 5 and a filtration unit 6 .
The water supply tank 2 stores water to be supplied to the purified water supply device 1 . The water supply tank 2 is provided with a water supply port 21 that protrudes downward from the center of the bottom surface and is a tubular part that forms an opening that communicates with the inside of the water supply tank 2 .

Also, the water supply tank 2 is made of a material with low flexibility. Therefore, even if water is supplied from the water supply tank 2 and the air pressure in the water supply tank 2 becomes lower than the outside of the purified water supply device 1 (hereinafter referred to as the external space), the water supply tank 2 does not easily contract. The shape is maintained substantially the same as before the internal air pressure is lowered.

The cold water tank 4 stores the water supplied from the water supply tank 2 while cooling it. Most of the cold water tank 4 is provided below the water tank 2 , but part of the water tank 2 may be arranged inside the cold water tank 4 . In this embodiment, the water supply port 21 of the water supply tank 2 is arranged inside the cold water tank 4 .

The cold water tank 4 is provided with a cold water cock (not shown), and the user can take in water accumulated in the cold water tank 4 via the cold water cock.
A hot water tank that stores the water supplied from the water supply tank 2 while warming it may be provided below the cold water tank 4 .

[1-2. Water tank fixing device]
The water tank fixing device 5 shown in FIGS. 1 to 5 is a device for holding the water tank 2 above the main body 3 . The water tank fixing device 5 is provided in an opening 41 formed in the upper portion of the cold water tank 4 .

The water tank fixing device 5 includes a lid portion 51 , a holding portion 52 , a first wall portion 53 and a cap 54 .
The lid portion 51 is a substantially circular portion arranged to cover the opening 41 of the cold water tank 4 . The opening 41 of the cold water tank 4 is sealed with a lid portion 51 . The upper surface of the lid portion 51 slopes downward toward the center.

The lid portion 51 includes a first hole portion 511 (see FIG. 3B), a second hole portion 512 (see FIG. 3B), a valve portion 513, a guide portion 514, and a gap enlarging portion 515.
The first hole portion 511 is a hole that communicates a water quality improvement channel 531, which will be described later, with the external space.

The second hole portion 512 is a hole that communicates the cold water tank 4 with the external space.
The valve portion 513 is provided in the second hole portion 512 . The valve portion 513 is configured to allow fluid to flow from the external space into the cold water tank 4 and to close the second hole portion 512 at least when the water level of the cold water tank 4 reaches a certain level. .

As an example, the valve portion 513 is configured as a float valve that is closed when the water level in the cold water tank 4 reaches a certain level and is opened otherwise. The valve portion 513 is displaced by the buoyancy of water, and when the water level of the cold water tank 4 is above a certain level, the valve portion 513 is displaced to approach the second hole portion 512 to close the second hole portion 512 . At the same time, when the water level is below a certain level, the valve portion 513 is separated from the second hole portion 512 to open the second hole portion 512 . For example, when the water level of the cold water tank 4 reaches a certain level, it means reaching a water level that displaces the valve portion 513 upward until the upper surface of the valve portion 513 contacts the second hole portion 512 .

The guide portion 514 guides the direction in which the valve portion 513 is displaced. The guide portion 514 is a plate-like member extending downward from the lower surface of the lid portion 51 . The guide portion 514 is configured in a substantially L shape.
For example, as shown in FIG. 2, the gap enlarging portion 515 is a hemispherical member that protrudes from the lid portion 51. When the water supply tank 2 is attached to the main body portion 3, the water supply tank 2 and the lid portion 51 are separated from each other. It is a member for enlarging the gap formed between. In this embodiment, three gap widening portions 515 are provided.

The holding portion 52 is a cylindrical portion that protrudes downward from substantially the center of the lid portion 51 and has a bottom surface.
The holding portion 52 includes a projecting portion 521 as shown in FIG. 1, for example. The projecting portion 521 is a tubular portion projecting upward from substantially the center of the bottom surface of the holding portion 52 . The projecting portion 521 has a first communication hole 522 that communicates the space outside and inside the holding portion 52 . In the present embodiment, the space outside the holding portion 52 is the water quality improvement channel 531, and the space inside the holding portion 52 is the space into which the water supply port 21 of the water supply tank 2 is inserted. That is.

The first wall portion 53 is an annular portion that protrudes downward (in other words, inside the cold water tank 4) from the lower surface of the lid portion 51 and surrounds the holding portion 52 from the side. The first wall portion 53 is provided in a state separated from the side wall of the cold water tank 4 . The first wall portion 53 is a flow path through which the water in the water supply tank 2 flows into the filtration unit 6 so that the water in the water supply tank 2 does not flow into the cold water tank 4 without passing through the filtration unit 6, which will be described later. A channel 531 is formed.

[1-3. cap]
The cap 54 is attached to the water supply port 21 of the water supply tank 2 and configured to block the water supply port 21 . As shown in FIG. 6B, a third hole 541 is formed in the center of the cap 54 . As shown in FIG. 6A , the cap 54 has a fitting portion 542 that protrudes from the edge surrounding the third hole 541 and is a tubular portion that fits into the projecting portion 521 . When the cap 54 is attached to the water supply port 21 of the water supply tank 2 , the fitting portion 542 protrudes into the water supply tank 2 from the center of the cap 54 .

The fitting portion 542 has a second communication hole 543 . The second communication hole 543 communicates with the first communication hole 522 when the water supply port 21 of the water tank 2 is inserted into the holding portion 52 with the cap 54 attached to the water supply port 21 of the water supply tank 2 . .

As shown in FIGS. 7A and 7B, a movable portion 544 is provided inside the fitting portion 542 . The movable part 544 is movable between a first position below the second communication hole 543 as shown in FIG. 7A and a second position above the second communication hole 543 as shown in FIG. 7B. is.

The movable part 544 moves from the first position to the second position when the water inlet 21 of the water tank 2 is inserted into the holding part 52 with the cap 54 attached to the water inlet 21 of the water tank 2. . The second communication hole 543 communicates with the first communication hole 522 when the movable portion 544 is positioned at the second position.

A packing 545 is attached to the inner wall of the fitting portion 542 . The packing 545 is provided with an annular rib 546 extending in the circumferential direction of the fitting portion 542 . The contact between the rib 546 and the protruding portion 521 can prevent the water in the water supply tank 2 from leaking from other than the first communication hole 522 .

[1-4. Filtration unit]
Returning to FIG. 1 , the filtration unit 6 is a unit for purifying the water in the water supply tank 2 .
The filtering unit 6 includes a second wall portion 61 , a third wall portion 62 and a bottom portion 63 .

The second wall portion 61 is an annular portion projecting downward from the first wall portion 53 . A first water quality improvement material 611 is arranged in a region surrounded by the second wall portion 61 . As an example of the first water quality improving material 611, powdered activated carbon is used. Powdered activated carbon is placed in a state wrapped in a non-woven fabric. A gap is formed between the first water quality improving material 611 and the holding portion 52 . A pressing member 64 for pressing the first water quality improving material 611 is arranged in the gap.

The third wall portion 62 projects downward from the second wall portion 61 and forms three chambers in the lower portion of the second wall portion 61 . Each chamber has a columnar shape extending in the vertical direction, and is arranged so as to surround a center line extending in the vertical direction through the holding portion 52 . In other words, the chambers are arranged under the second wall portion 61 at the same height in the vertical direction. A second water quality improving material 621 is placed in each chamber. As an example of the second water quality improving material 621, a hollow fiber membrane is used.

The bottom portion 63 is provided at the lower end of the third wall portion 62 and covers each chamber from below. The bottom portion 63 has a plurality of fine communication holes that communicate each chamber with the space below the bottom portion 63 .
After passing through the first water quality improving material 611 and the second water quality improving material 621, the water in the water supply tank 2 is stored in the cold water tank 4 and supplied to the user.

[1-5. effect]
According to the embodiment detailed above, the following effects are obtained.
(1a) The holding portion 52 holds the water supply port 21 at a position lower than the opening 41 . The holding portion 52 also has a first communication hole 522 at a position lower than the opening 41 . The first communication hole 522 is configured to communicate the water supply tank 2 and the cold water tank 4 via the water quality improvement channel 531, and is configured to communicate the water supply tank 2 and the external space. In other words, the first communication hole 522 is configured to communicate the water supply tank 2 , the cold water tank 4 , and the external space via the water quality improvement channel 531 . According to such a configuration, the water in the water supply tank 2 can be supplied more smoothly while suppressing water leakage to the outside.

First, when the water supply port 21 of the water supply tank 2 is inserted into the holding portion 52 with the cap 54 attached to the water supply port 21 of the water supply tank 2, the air flowing into the water quality improvement channel 531 from the first hole portion 511 is flows into the water supply tank 2 through the first communication hole 522 . As a result, water is supplied from the water supply tank 2 to the filtration unit 6 through the water quality improvement channel 531 . The water that has passed through the filtration unit 6 is stored in the cold water tank 4 and supplied to the user from the cold water cock. In this manner, the first communication hole 522 communicates the water supply tank 2 and the cold water tank 4, and also communicates the water supply tank 2 with the external space, so that the water in the water supply tank 2 can be supplied more smoothly. can do.

Also, the water supplied from the water supply tank 2 reaches the lower end of the holding portion 52 as the water surface rises. At this time, the water blocks the first communication hole 522 provided at the lower end of the holding portion 52, so that the air from the external space does not flow to the water supply tank 2 side through the water quality improvement channel 531. Therefore, since water is no longer supplied from the water supply tank 2, the water level in the water quality improvement channel 531 does not rise. An air layer is formed between the lower end of the holding portion 52 and the first hole portion 511 without water remaining. Therefore, it is possible to suppress the leakage of water from the first hole portion 511 to the outside.

(1b) The movable portion 544 moves from the first position to the second position when the water supply port 21 of the water supply tank 2 is inserted into the holding portion 52 with the cap 54 attached to the water supply port 21 of the water supply tank 2 . move to The second communication hole 543 communicates with the first communication hole 522 when the movable portion 544 is positioned at the second position. According to such a configuration, when the movable portion 544 is at the first position, the first communication hole 522 and the second communication hole 543 are not in communication with each other. . On the other hand, when the movable portion 544 is at the second position, the first communication hole 522 and the second communication hole 543 communicate with each other, so that water can flow out of the water supply tank 2 . Therefore, water can flow out of the water tank 2 only when the water supply port 21 of the water tank 2 is inserted into the holding portion 52 .

(1c) The gap enlarging portion 515 is a member for enlarging the gap formed between the water supply tank 2 and the lid portion 51 . According to such a configuration, air can be easily sent into the first hole portion 511 and the second hole portion 512 from the gap formed between the water supply tank 2 and the lid portion 51 . Therefore, the water in the water supply tank 2 and the cold water tank 4 can be supplied smoothly.

(1d) The valve portion 513 allows fluid to flow into the cold water tank 4 from the external space, and closes the second hole portion 512 at least when the water level in the cold water tank 4 reaches a certain level. Configured. With such a configuration, air can be sent into the cold water tank 4 by opening the second hole 512 with the valve portion 513 . Therefore, the water in the cold water tank 4 can be smoothly supplied when water is taken from the cold water cock. In addition, by closing the second hole 512 with the valve portion 513, it is possible to suppress leakage of water from the cold water tank 4 to the outside.

(1e) The guide portion 514 guides the direction in which the valve portion 513 is displaced. According to such a configuration, when the valve portion 513 is displaced upward, the guide portion 514 can be suppressed from swinging to the left and right. Therefore, it is possible to prevent the valve portion 513 from tilting to the left or right due to the water in the cold water tank 4 . Therefore, it is possible to avoid a situation in which the valve portion 513 is tilted and the second hole portion 512 cannot be properly closed.

(1f) Powdered activated carbon is used for the first water quality improvement material 611 . According to such a configuration, the activated carbon can be spread so as to minimize the gaps between the activated carbons. Also, the area where water directly contacts the activated carbon can be increased. Therefore, purification performance can be improved.

[1-6. Correspondence]
The first wall portion 53 corresponds to the partition wall, the second hole portion 512 corresponds to the storage portion hole portion, and the valve portion 513 corresponds to the storage portion valve portion.

[2. Other embodiments]
Although the embodiments of the present disclosure have been described above, it is needless to say that the present disclosure is not limited to the above embodiments and can take various forms.

(2a) In the above embodiment, the valve portion 513 is configured as a float valve. However, the configuration of the valve portion 513 is not limited to this. For example, instead of the water tank fixing device 5, a water tank fixing device 5A shown in FIGS. 8A and 8B may be provided. The water tank fixing device 5A may include, for example, a valve portion 513A, and the valve portion 513A may be configured as a duckbill having a valve body projecting in one direction. Duckbills may be configured as normally closed or normally open.

When the duckbill is of the normally closed type, the water level in the cold water tank 4 is low, the valve body is exposed to the air in the cold water tank 4, and the air pressure in the cold water tank 4 is higher than the air pressure in the external space. When it is low, the valve body is opened. On the other hand, otherwise, the valve body is closed.

When the duckbill is of the normally open type, the water level in the cold water tank 4 reaches a certain level, and when the valve body is submerged in water, the valve body is closed by water pressure. On the other hand, otherwise, the valve body is opened.

Further, for example, the valve portion 513A may be configured as a check valve. Specifically, when the water level in the cold water tank 4 reaches a certain level and the water is about to flow out from the cold water tank 4 to the external space, the valve body 513A moves the second hole 512. Actuated to close, otherwise the valve body moves away from the second hole 512 and the second hole 512 is opened.

(2b) In the above embodiment, the enlarged gap portion 515 is configured as a hemispherical member protruding from the lid portion 51 . However, the shape of the enlarged gap portion 515 is not limited to this. For example, the enlarged gap portion 515 may have a wavy shape formed on the upper surface of the lid portion 51 .

(2c) In the above embodiment, the water supply tank 2 is made of a material with low flexibility. However, for example, the water tank 2 may be made of a highly flexible material that shrinks as the air pressure inside the water tank 2 becomes lower than the air pressure in the external space.

(2d) In the above embodiment, the first communication hole 522 is configured to communicate the water supply tank 2 and the cold water tank 4 via the water quality improvement channel 531, and also connects the water supply tank 2 and the external space. configured to communicate. However, the first communication hole 522 is configured to communicate the water supply tank 2 and the cold water tank 4 without passing through the water quality improvement channel 531, and is configured to communicate the external space and the water supply tank 2. may

(2e) In the above embodiment, the configuration in which the valve portion 513 is provided in the second hole portion 512 was exemplified. A valve portion may also be provided in the first hole portion 511 . The valve portion provided in the first hole portion 511 allows fluid to flow from the external space into the water quality improvement channel 531, and at least when the water level in the water quality improvement channel 531 reaches a certain level, It is configured to close the first hole 511 . As an example, the valve portion is configured as a float valve that is closed when the water level of the water quality improvement channel 531 reaches a certain level, and is opened otherwise. The valve portion is displaced by the buoyancy of water, and when the water level in the water quality improvement channel 531 is above a certain level, the valve portion is displaced to approach the first hole portion 511 to close the first hole portion 511. At the same time, when the water level is below a certain level, the valve part is separated from the first hole 511 and the first hole 511 is opened. The water level of the water quality improvement channel 531 reaching a certain level is, for example, reaching a water level that displaces the valve portion upward until the upper surface of the valve portion contacts the first hole portion 511 .

Normally, the water level in the water quality improvement channel 531 rises only to the lower end of the holding portion 52. However, for example, if the water tank 2 is cracked, air will enter the water tank 2 from other than the first communication hole 522. When the water flows in, the water level may rise above the lower end of the holding portion 52 . Even in such a case, water leakage from the first hole portion 511 can be suppressed if the first hole portion 511 is provided with a valve portion. The first hole portion 511 corresponds to the channel hole portion, and the valve portion corresponds to the channel valve portion.

(2f) The water tank fixing device 5 and the filtration unit 6 can be easily replaced. For example, it is possible to attach the water tank fixing device 5 and the filtration unit 6 to any existing water server. Further, for example, by periodically replacing the filtration unit 6, it is possible to secure the water purification capability without replacing the water server itself.

(2g) The function of one component in the above embodiments may be distributed as multiple components, or the functions of multiple components may be integrated into one component. Also, part of the configuration of the above embodiment may be omitted. Also, at least a part of the configuration of the above embodiment may be added, replaced, etc. with respect to the configuration of the other above embodiment.

[Technical concept disclosed in this specification]
[Item 1]
and a storage unit provided below the water supply tank for storing water supplied from the water supply tank. A water tank fixing device comprising:
a lid covering the opening;
a holding part that holds a water supply port provided in the water supply tank;
with
The holding part holds the water supply port at a position lower than the opening,
The holding part has a first communication hole at a position lower than the opening,
The first communication hole is configured to communicate between the water supply tank and the storage unit, and is configured to communicate between an external space outside the supply device and the water supply tank, fixing the water supply tank. Device.

[Item 2]
The water supply tank fixing device according to item 1,
Further comprising a partition wall forming a water quality improvement channel, which is a channel through which water from the water supply tank flows into the filtration unit in which the water quality improvement material is arranged, and extending downward from the lid,
the filtration unit is positioned within the reservoir;
The holding part is arranged in the water quality improvement channel,
The first communication hole is configured to communicate between the water supply tank and the storage unit and to communicate between the external space and the water supply tank through the water quality improvement channel. , water tank fixing device.

[Item 3]
The water supply tank fixing device according to item 2,
further comprising a flow channel valve portion provided in a flow channel hole portion that is a hole that communicates the water quality improvement flow channel and the external space;
The flow path valve unit allows a fluid to flow from the external space into the water quality improvement flow path, and at least when the water level in the water quality improvement flow path reaches a certain level, A water tank fixing device that closes the hole.

[Item 4]
The water supply tank fixing device according to item 2,
The water supply tank fixing device, wherein powdered activated carbon is used as the water quality improving material.

[Item 5]
The water supply tank fixing device according to any one of items 1 to 4,
Further comprising a cap attached to the water inlet,
The holding portion has a projecting portion that is a tubular portion projecting upward from the bottom surface of the holding portion,
The first communication hole is provided in the protrusion,
The cap includes a fitting portion that is a tubular portion that fits into the protrusion,
The fitting portion has a second communication hole configured to communicate with the first communication hole,
The fitting portion has a movable portion movable between a first position below the second communication hole and a second position above the second communication hole,
the movable portion moves from the first position to the second position when the water supply port is inserted into the holding portion with the cap attached to the water supply port;
The water tank fixing device, wherein the second communication hole communicates with the first communication hole when the movable portion is positioned at the second position.

[Item 6]
The water supply tank fixing device according to any one of items 1 to 5,
The water tank fixing device, wherein the lid part has a gap enlarging part that protrudes from the lid part and expands a gap formed between the water tank and the lid part.

[Item 7]
The water supply tank fixing device according to any one of items 1 to 6,
further comprising a reservoir valve provided in a reservoir hole, which is a hole communicating between the reservoir and the external space;
The reservoir valve allows fluid to flow from the external space to the reservoir, and closes the reservoir hole at least when the water level in the reservoir reaches a certain level. , water tank fixing device.

[Item 8]
The water supply tank fixing device according to item 7,
The storage unit valve unit is a float valve that is displaced by the buoyancy of water,
The water supply tank fixing device further comprising a guide portion that guides a direction in which the storage portion valve portion is displaced.

DESCRIPTION OF SYMBOLS 1... Purified water supply apparatus, 2... Water supply tank, 3... Main body part, 4... Cold water tank, 5, 5A... Water supply tank fixing device, 6... Filtration unit, 21... Water supply port, 41... Opening, 51... Lid part, 52 ... Holding part 53... First wall part 54... Cap 61... Second wall part 62... Third wall part 63... Bottom part 64... Pressing member 511... First hole part 512... Second hole Part 513, 513A... Valve part 514... Guide part 515... Gap enlarging part 521... Protruding part 522... First communicating hole 531... Water quality improving channel 541... Third hole 542... Fitting Part 543 Second communication hole 544 Movable part 545 Packing 546 Rib 611 First water quality improving material 621 Second water quality improving material.

Claims (8)

and a storage unit provided below the water supply tank for storing water supplied from the water supply tank. A water tank fixing device comprising:
a lid covering the opening;
a holding part that holds a water supply port provided in the water supply tank;
with
The holding part holds the water supply port at a position lower than the opening,
The holding part has a first communication hole at a position lower than the opening,
The first communication hole is configured to communicate between the water supply tank and the storage unit, and is configured to communicate between an external space outside the supply device and the water supply tank, fixing the water supply tank. Device. The water supply tank fixing device according to claim 1,
Further comprising a partition wall forming a water quality improvement channel, which is a channel through which water from the water supply tank flows into the filtration unit in which the water quality improvement material is arranged, and extending downward from the lid,
the filtration unit is positioned within the reservoir;
The holding part is arranged in the water quality improvement channel,
The first communication hole is configured to communicate between the water supply tank and the storage unit and to communicate between the external space and the water supply tank through the water quality improvement channel. , water tank fixing device. The water supply tank fixing device according to claim 1 or claim 2,
Further comprising a cap attached to the water inlet,
The holding portion has a projecting portion that is a tubular portion projecting upward from the bottom surface of the holding portion,
The first communication hole is provided in the protrusion,
The cap includes a fitting portion that is a tubular portion that fits into the protrusion,
The fitting portion has a second communication hole configured to communicate with the first communication hole,
The fitting portion has a movable portion movable between a first position below the second communication hole and a second position above the second communication hole,
the movable portion moves from the first position to the second position when the water supply port is inserted into the holding portion with the cap attached to the water supply port;
The water tank fixing device, wherein the second communication hole communicates with the first communication hole when the movable portion is positioned at the second position. The water supply tank fixing device according to claim 1 or claim 2,
The water tank fixing device, wherein the lid part has a gap enlarging part that protrudes from the lid part and expands a gap formed between the water tank and the lid part. The water supply tank fixing device according to claim 1 or claim 2,
further comprising a reservoir valve provided in a reservoir hole, which is a hole communicating between the reservoir and the external space;
The reservoir valve allows fluid to flow from the external space to the reservoir, and closes the reservoir hole at least when the water level in the reservoir reaches a certain level. , water tank fixing device. The water supply tank fixing device according to claim 5,
The storage unit valve unit is a float valve that is displaced by the buoyancy of water,
The water supply tank fixing device further comprising a guide portion that guides a direction in which the storage portion valve portion is displaced. The water supply tank fixing device according to claim 2,
further comprising a flow channel valve portion provided in a flow channel hole portion that is a hole that communicates the water quality improvement flow channel and the external space;
The flow path valve unit allows a fluid to flow from the external space into the water quality improvement flow path, and at least when the water level in the water quality improvement flow path reaches a certain level, A water tank fixing device that closes the hole. The water supply tank fixing device according to claim 2,
The water supply tank fixing device, wherein powdered activated carbon is used as the water quality improving material.

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