JP2009166856A - Server for drinking water - Google Patents

Server for drinking water Download PDF

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JP2009166856A
JP2009166856A JP2008004497A JP2008004497A JP2009166856A JP 2009166856 A JP2009166856 A JP 2009166856A JP 2008004497 A JP2008004497 A JP 2008004497A JP 2008004497 A JP2008004497 A JP 2008004497A JP 2009166856 A JP2009166856 A JP 2009166856A
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water
storage tank
water storage
gas
container
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JP4859850B2 (en
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Kunihiro Fujiyama
訓比呂 藤山
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FUJIYAMA CORP
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FUJIYAMA CORP
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a server for drinking water, suppressing contact of the drinking water with air as much as possible. <P>SOLUTION: In the server for drinking water, a container 1 is attached and detached to a water conduit 11 extending upward from a water storing tank 10, the drinking water w in the container 1 is made to flow down into the water storing tank 10 by causing a gas b to enter the container 1, and a freely openable and closable feeding valve 20 is provided on a water feeding pipe 21 extending from the water storing tank 10 to feed the drinking water w. A gas introducing unit 40 is connected with the water conduit 11 so as to introduce the gas b into the water conduit 11 from the gas introducing unit 40, and the gas b is made to invade into the container 1 through the water conduit 11 from the gas introducing unit 40. The drinking water w in the container 1 is made to flow down into the water storing tank 10 by causing the gas b to enter the container 1, and a gas "a" in the water storing tank 10 is completely exhausted through a vent hole 28 provided on the upper end of the water storing tank 10, to always keep the inside of the water storing tank 10 in a filled-up condition with water. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、容器に収容されたミネラルウォーター等の飲料水をタンク内に貯留した後、その貯留した飲料水を適宜供給できるようにした飲料水用サーバーに関するものである。   The present invention relates to a drinking water server in which drinking water such as mineral water stored in a container is stored in a tank, and then the stored drinking water can be appropriately supplied.

従来の飲料水用サーバーは、例えば、図6(a)に示すように、貯水タンク10から上方に伸びる導水管11及び台座17に容器1が着脱可能であり、その容器1内の飲料水wが、その自重により(落差により)、導水管11を通じて貯水タンク10内へ流下するようになっている。   For example, as shown in FIG. 6A, a conventional drinking water server is configured such that a container 1 can be attached to and detached from a water conduit 11 and a pedestal 17 extending upward from a water storage tank 10, and the drinking water w in the container 1 can be removed. However, due to its own weight (due to a drop), it flows down into the water storage tank 10 through the water guide pipe 11.

この容器1は硬質の樹脂等で成型されており、予め殺菌処理等が施された状態の飲料水wが、例えば、20リットル程度の単位で封入されて、密閉された状態で市場に供給されているものである。容器1が硬質の樹脂で成型されているため、内部の飲料水wが減少してもその形状がほぼ維持されるようになっている。   The container 1 is molded of a hard resin or the like, and the drinking water w in a state of being sterilized in advance is sealed in a unit of about 20 liters and supplied to the market in a sealed state, for example. It is what. Since the container 1 is formed of a hard resin, the shape is substantially maintained even if the drinking water w inside is reduced.

図6(b)に示すように、容器1内の飲料水wが貯水タンク10に向かって徐々に流下していくとともに、容器1内には導水管11を通じて徐々に貯水タンク10内の空気(気体)aが入り込んでいき、その容器1内の気圧が平常に保たれる。同時に、貯水タンク10内の空気aは、飲料水wが流入することにより通気孔28から外部に排出される。   As shown in FIG. 6 (b), the drinking water w in the container 1 gradually flows down toward the water storage tank 10, and the air in the water storage tank 10 is gradually introduced into the container 1 through the water conduit 11 ( Gas) a enters and the atmospheric pressure in the container 1 is maintained normally. At the same time, the air a in the water storage tank 10 is discharged to the outside through the vent hole 28 when the drinking water w flows in.

貯水タンク10内の水位が、図6(c)に示すように導水管11の下端に達すると、容器1への空気aの流入が止まる。このため、自重により流下しようとする飲料水wの流下圧により容器1内がいわゆる負圧状態となり、それ以上の飲料水wの流下を不可能とする。すなわち、貯水タンク10内の液面に作用する空気圧と、容器1内の液面に作用する空気圧とのバランスにより、容器1内から貯水タンク10への水の流下が自動的に止まるようになっている。   When the water level in the water storage tank 10 reaches the lower end of the water conduit 11 as shown in FIG. 6 (c), the flow of air a into the container 1 stops. For this reason, the inside of the container 1 is in a so-called negative pressure state due to the flow-down pressure of the drinking water w about to flow down by its own weight, and it is impossible to flow down the drinking water w beyond that. That is, due to the balance between the air pressure acting on the liquid surface in the water storage tank 10 and the air pressure acting on the liquid surface in the container 1, the flow of water from the container 1 to the water storage tank 10 automatically stops. ing.

また、その貯水タンク10から送水管21が引き出されており、その送水管21に開閉自在の供給バルブ20が設けられている。
供給バルブ20を開放すれば、貯水タンク10内の飲料水wが適宜外部へ供給でき、また、供給バルブ20を閉鎖すれば、その供給が止まるようになっている。
A water supply pipe 21 is drawn from the water storage tank 10, and a supply valve 20 that can be opened and closed is provided in the water supply pipe 21.
If the supply valve 20 is opened, the drinking water w in the water storage tank 10 can be appropriately supplied to the outside, and if the supply valve 20 is closed, the supply is stopped.

この送水管21からの飲料水wの供給により、貯水タンク10内の水位が図6(c)に示す高さからわずかに低下すれば、再度、容器1内の飲料水wが貯水タンク10内に流下を開始する。貯水タンク10内の水位が、導水管11の下端に達して前記空気圧のバランスが取れる状態になると流下が止まり、貯水タンク10内の水位が維持される。   If the water level in the water storage tank 10 is slightly lowered from the height shown in FIG. 6C due to the supply of the drinking water w from the water pipe 21, the drinking water w in the container 1 is again in the water storage tank 10. Start to flow down. When the water level in the water storage tank 10 reaches the lower end of the water conduit 11 and the air pressure is balanced, the flow stops and the water level in the water storage tank 10 is maintained.

なお、一般的には、貯水タンク10に冷却装置(図示せず)を設けて、貯水タンク10内の飲料水を冷却して冷水として供給する場合が多いが、その貯水タンク10とは別に加熱装置31を備えた貯水タンク10(以下、「温水タンク30」という)を設け、その加熱装置31を備えた温水タンク30と前記冷却装置を備えた貯水タンク10とを給水管32で接続した飲料水用サーバーもある(例えば、特許文献1参照)。
特開2003−104494号公報
In general, a cooling device (not shown) is provided in the water storage tank 10 to cool the drinking water in the water storage tank 10 and supply it as cold water, but it is heated separately from the water storage tank 10. Beverage provided with a water storage tank 10 (hereinafter referred to as “hot water tank 30”) provided with a device 31, and a hot water tank 30 provided with the heating device 31 and a water storage tank 10 provided with the cooling device connected by a water supply pipe 32 There is also a water server (see, for example, Patent Document 1).
JP 2003-104494 A

上記の図6に示す飲料水用サーバーによれば、貯水タンク10内の飲料水wが、常に、空気などの気体aに触れた状態となる。
飲料水wは、できる限り気体aに触れないことが、衛生管理上望ましいといえる。
According to the drinking water server shown in FIG. 6, the drinking water w in the water storage tank 10 is always in contact with the gas a such as air.
It can be said that it is desirable for hygiene management that the drinking water w does not touch the gas a as much as possible.

そこで、この発明は、飲料水が気体に触れることを極力抑制することを課題とする。   Then, this invention makes it a subject to suppress that drinking water touches gas as much as possible.

上記の課題を解決するために、この発明は、貯水タンクから上方に伸びる導水管に容器が着脱可能であり、前記容器内に気体が侵入することによりその容器内の飲料水がその導水管を通じて貯水タンク内へ流下するようになっており、その貯水タンクから送水管を引き出してその送水管に開閉自在の供給バルブを設けてその貯水タンク内の飲料水を供給できるようにした飲料水用サーバーにおいて、前記導水管に気体導入装置を接続してその気体導入装置から前記導水管内に気体を導入可能とし、前記容器内が負圧状態となった際に、前記気体導入装置から前記導水管を通じて前記容器内に気体を侵入させ、その気体の侵入により前記容器内の飲料水を貯水タンク内へ流下させる構成を採用した。   In order to solve the above problems, the present invention is such that a container can be attached to and detached from a water conduit extending upward from a water storage tank, and when water enters the container, drinking water in the container passes through the water conduit. A drinking water server that is designed to flow down into a water storage tank and draws a water supply pipe from the water storage tank and is provided with an openable / closable supply valve in the water supply pipe to supply drinking water in the water storage tank. The gas introduction device is connected to the water conduit so that gas can be introduced into the water conduit from the gas introduction device, and when the inside of the container is in a negative pressure state, the gas introduction device passes through the water conduit. A configuration was adopted in which a gas was allowed to enter the container and the drinking water in the container was caused to flow down into the water storage tank by the gas entering.

容器内の飲料水がその落差で貯水タンクへ流下しようとすることにより、その容器内が負圧となるため、その負圧を解消するように、気体導入装置から導水管、容器へ気体が導入されていく。負圧が解消されると、再度、容器から貯水タンクへ飲料水が流下し、最終的に貯水タンクが満水状態になれば流下が終了する。
このように、気体導入装置から導水管を通じて容器内に気体を導入するようにしたので、貯水タンク内から容器に向かって気体を導入しなくとも、容器から貯水タンクに向かって飲料水を流下させることができる。このため、貯水タンク内に気体を通過させる必要がなくなり、その貯水タンク内の飲料水が気体に触れることを極力抑制できるようになる。
When the drinking water in the container tries to flow down to the water storage tank due to the drop, the inside of the container becomes negative pressure, so that gas is introduced from the gas introduction device to the water conduit and the container so as to eliminate the negative pressure. It will be done. When the negative pressure is eliminated, the drinking water again flows from the container to the water storage tank, and the flow ends when the water storage tank eventually becomes full.
As described above, since the gas is introduced from the gas introduction device into the container through the water conduit, the drinking water flows down from the container toward the water storage tank without introducing the gas from the water storage tank toward the container. be able to. For this reason, it becomes unnecessary to allow gas to pass through the water storage tank, and it becomes possible to suppress the drinking water in the water storage tank from touching the gas as much as possible.

また、前記貯水タンクの上端に通気孔を設け、その通気孔に排気手段を設け、その排気手段により、前記貯水タンク内が満水状態となった際にその通気孔を閉じてその貯水タンク内の満水状態を維持できるようにし、且つ、前記貯水タンク内に気体が混入した状態となった際にはその通気孔を開けて貯水タンク内の気体を外部に開放できるようにした構成を採用することができる。   Further, a vent hole is provided at the upper end of the water storage tank, and an exhaust means is provided in the vent hole. When the inside of the water storage tank is filled with the exhaust means, the vent hole is closed to close the inside of the water storage tank. Adopting a configuration that can maintain a full water state and that allows the gas in the water tank to be opened to the outside by opening the vent when the water is in the water tank. Can do.

この排気手段を備えることにより、貯水タンク内が満水状態となった際に、通気孔が閉じられてその貯水タンク内の満水状態が維持される。また、貯水タンク内に気体が介在すれば、通気孔が開いて気体が外部に排出される。このため、貯水タンク内の飲料水が気体に触れることを、さらに確実に抑えることができる。
なお、貯水タンク内に気体が介在する場合において、その気体の介在により貯水タンク内が加圧状態になっていれば、そのままでは容器からの飲料水の流下が滞る場合があるが、気体の排出により加圧状態が解消すれば、飲料水の流下を再開させることができる。
By providing this exhaust means, when the water storage tank becomes full, the vent hole is closed and the water storage state in the water storage tank is maintained. Further, if gas is present in the water storage tank, the vent is opened and the gas is discharged to the outside. For this reason, it can suppress more reliably that the drinking water in a water storage tank touches gas.
In addition, when gas is present in the water storage tank, if the water storage tank is in a pressurized state due to the presence of the gas, the flow of drinking water from the container may stagnate as it is. If the pressurized state is eliminated, the flow of drinking water can be resumed.

さらに、その排気手段として、前記貯水タンク内が満水状態になった状態で前記供給バルブを開放した際に、前記貯水タンク内が負圧となっても外部の気体をその貯水タンク内へ通さずにその貯水タンク内の負圧状態を維持できるようにした構成を採用することができる。
このようにすれば、前記供給バルブの開放により、貯水タンク内の水位が下がった際に、容器から貯水タンクへの飲料水の流下を促進することができる。
Further, as the exhaust means, when the supply valve is opened in a state where the water storage tank is full, an external gas is not passed into the water storage tank even if the water pressure in the water storage tank becomes negative. Further, it is possible to adopt a configuration that can maintain the negative pressure state in the water storage tank.
If it does in this way, when the water level in a water storage tank falls by opening the said supply valve, the flow of the drinking water from a container to a water storage tank can be accelerated | stimulated.

これらの排気手段としては、例えば、手動操作により前記通気孔の開閉を行うことができるようにしてもよいし、貯水タンク内の圧力や水位によって自動的に前記通気孔を開閉する構成としてもよい。   As these exhaust means, for example, the vent hole may be opened and closed by a manual operation, or the vent hole may be automatically opened and closed according to the pressure or water level in the water storage tank. .

例えば、その排気手段として、貯水タンク内から貯水タンク外への気体の移動を許容し、貯水タンク外から貯水タンク内への気体の移動を許容しない逆止弁形式の排気弁と、前記貯水タンク内が満水状態となった際に前記通気孔を閉じ、その満水状態から水位が下がった際に前記通気孔を開ける機能を有する開閉弁を備えた構成とすることができる。
この排気弁を備えたことにより、貯水タンク内に気体が混入した状態となった際には、自動的にその通気孔を開けて貯水タンク内の気体を外部に開放でき、また、前記貯水タンク内が負圧となっても外部の気体をその貯水タンク内へ通さずにその貯水タンク内の負圧状態を維持できる。
このとき、開閉弁の機能として、貯水タンク内の水位が低下した(満水状態でない)際に通気孔を開放できるものであれば、前記排気弁開放時の気体の排出を阻害せず、また、貯水タンク内の満水状態で通気孔を閉じることができるものであれば、飲料水が外部に漏れ出ないようにし得る。
For example, as the exhaust means, a check valve type exhaust valve that allows gas to move from the inside of the water tank to the outside of the water tank and does not allow gas to move from the outside of the water tank to the inside of the water tank, and the water tank An opening / closing valve having a function of closing the vent hole when the inside becomes full and opening the vent hole when the water level falls from the full water state can be provided.
By providing this exhaust valve, when the gas is mixed in the water storage tank, the vent hole can be automatically opened to release the gas in the water storage tank to the outside. Even if the inside becomes a negative pressure, the negative pressure state in the water storage tank can be maintained without passing outside gas into the water storage tank.
At this time, as a function of the on-off valve, as long as the vent hole can be opened when the water level in the water storage tank is lowered (not full), the exhaust of the gas when the exhaust valve is opened is not hindered, If the vent hole can be closed when the water storage tank is full, drinking water can be prevented from leaking outside.

また、その開閉弁の構成として、例えば、満水状態になると手動で通気孔を閉じるようにした構成を採用してもよいし、あるいは、貯水タンク内の水位の変動に伴って自動的に通気孔を開閉し得る構成としてもよい。自動的に通気孔を開閉する構成として、例えば、貯水タンク内の水位の変動に伴って昇降するフロート弁体を備えた開閉弁とすることができる。水位の変動に伴うフロート弁体の昇降により、満水状態になれば自動的に前記通気孔を閉じ、満水状態から水位が下がれば自動的に前記通気孔を開くようにすることができる。   In addition, as a configuration of the on-off valve, for example, a configuration in which the vent hole is manually closed when the water is full may be adopted, or the vent hole is automatically generated as the water level in the water storage tank changes. It is good also as a structure which can be opened and closed. As a configuration for automatically opening and closing the vent hole, for example, an open / close valve provided with a float valve body that moves up and down with a change in the water level in the water storage tank can be used. By raising and lowering the float valve body accompanying the fluctuation of the water level, the vent hole can be automatically closed when the water level is full, and the vent hole can be automatically opened when the water level falls from the full water level.

この逆止弁形式の排気弁と、フロート弁体を備えた開閉弁とを併用し、例えば、1本の通気孔に対して排気弁を外側(貯水タンク外寄り)に開閉弁を内側(貯水タンク内寄り)に配置することができる。
このようにすれば、貯水タンク内が満水状態から水位が低下して開閉弁が開いても、貯水タンク内は負圧状態であるので排気弁は開かない。また、貯水タンク内に気体が入った場合には水位が下がって開閉弁が開き、また排気弁も開くので、貯水タンク内の気体が貯水タンク外に排出されるようにできる。
This check valve type exhaust valve is used in combination with an open / close valve equipped with a float valve element. It can be placed in the tank).
In this way, even if the water level drops from the full state in the water storage tank and the on-off valve opens, the exhaust valve does not open because the water tank is in a negative pressure state. In addition, when gas enters the water storage tank, the water level drops, the open / close valve opens, and the exhaust valve also opens, so that the gas in the water storage tank can be discharged out of the water storage tank.

また、この構成において、前記導水管の前記気体導入装置の接続箇所よりも下方に、前記容器側から貯水タンク側への流体の流れのみを許容する逆止弁を設けた構成とすることもできる。このようにすれば、容器から貯水タンク内へ飲料水が流下する際に、貯水タンクから容器への空気の移動を防止することができる。
さらに、この構成によれば、貯水タンク内が満水状態において、その貯水タンクと前記容器との間を閉塞することができるので、貯水タンクから容器への飲料水の逆流(対流)が防止でき、より衛生的であるといえる。
Further, in this configuration, a check valve that allows only the flow of fluid from the container side to the water storage tank side may be provided below the connection point of the gas introduction device of the water conduit. . In this way, when drinking water flows from the container into the water storage tank, movement of air from the water storage tank to the container can be prevented.
Further, according to this configuration, when the inside of the water storage tank is full, the space between the water storage tank and the container can be closed, so that backflow (convection) of drinking water from the water storage tank to the container can be prevented, It can be said that it is more hygienic.

また、これらの構成において、前記気体導入装置と前記導水管とは接続管で接続されており、その接続管に、前記気体導入装置側から導水管側への流体の流れのみを許容する逆止弁を設けた構成とすることもできる。
このようにすれば、容器及び導水管内の飲料水が逆流して気体導入装置に入り込むことを防止し得る。
Further, in these configurations, the gas introduction device and the water conduit are connected by a connection pipe, and the check that allows only a fluid flow from the gas introduction device side to the water conduit side in the connection pipe. It can also be set as the structure which provided the valve.
If it does in this way, it can prevent that the drinking water in a container and a conduit pipe flows back into a gas introducing device.

また、同じく、容器及び導水管内の飲料水が逆流して気体導入装置に入り込むことを防止する目的で、前記接続管を、前記導水管への接続箇所よりも高い位置を通過して前記気体導入装置に至るようにした構成を採用することができる。   Similarly, for the purpose of preventing the drinking water in the container and the water conduit from flowing back and entering the gas introduction device, the gas introduction through the connection pipe through a position higher than the connection location to the water conduit. A configuration that reaches the apparatus can be adopted.

また、前記気体導入装置から前記導水管内への気体の導入を、容器内が負圧状態になった際に圧力をもって強制的に導入する構成を採用することも可能である。
すなわち、前述の各構成において、飲料水の貯水タンクへの流下により容器内が負圧になった際、その容器内の負圧を解消するように気体導入装置から自然に気体が導入される構成とし得るが、その気体の導入を、容器内が負圧状態となった際にその負圧状態を解消するように、接続管に接続したポンプやボンベ等によって圧力をもって強制的に行う手法も考えられる。このようにすれば、容器内の負圧状態の解消が早まり、その容器から貯水タンクへの飲料水の流下が促進され、貯水タンクへの飲料水の補給が、よりスムースであるといえる。
It is also possible to adopt a configuration in which the introduction of gas from the gas introduction device into the water conduit is forcibly introduced with pressure when the inside of the container is in a negative pressure state.
That is, in each of the above-described configurations, when the inside of the container becomes negative due to the flow of drinking water to the water storage tank, the gas is naturally introduced from the gas introduction device so as to eliminate the negative pressure in the container However, a method of forcibly introducing the gas with pressure using a pump or a cylinder connected to the connecting pipe so that the negative pressure state is eliminated when the inside of the container becomes a negative pressure state can be considered. It is done. If it does in this way, cancellation of the negative pressure state in a container will be accelerated, the flow of drinking water from the container to a water storage tank will be promoted, and it can be said that the replenishment of drinking water to a water storage tank is smoother.

なお、これらの飲料水用サーバーを用いた飲料水の供給方法として、以下の構成を採用することができる。
すなわち、貯水タンクから上方に伸びる導水管に容器が着脱可能であり、前記容器内に気体が侵入することによりその容器内の飲料水がその導水管を通じて貯水タンク内へ流下するようになっており、その貯水タンクから送水管を引き出してその送水管に開閉自在の供給バルブを設けてその貯水タンク内の飲料水を供給できるようになっており、前記導水管に気体導入装置を接続してその気体導入装置から前記導水管内に気体を導入可能とし、前記容器内が負圧状態となった際に、前記気体導入装置から前記導水管を通じて前記容器内に気体を侵入させ、その気体の侵入により前記容器内の飲料水を貯水タンク内へ流下させるようにしたことを特徴とする飲料水用サーバーを用いた飲料水の供給方法である。
In addition, the following structures are employable as a drinking water supply method using these drinking water servers.
That is, the container can be attached to and detached from the water conduit extending upward from the water storage tank, and when the gas enters the container, the drinking water in the container flows into the water storage tank through the water conduit. The water supply pipe is pulled out from the water storage tank, and a supply valve that can be freely opened and closed is provided in the water supply pipe so that drinking water in the water storage tank can be supplied. Gas can be introduced into the water conduit from the gas introducing device, and when the inside of the container is in a negative pressure state, gas is introduced into the container through the water conduit from the gas introducing device, A drinking water supply method using a drinking water server, wherein the drinking water in the container is allowed to flow into a water storage tank.

この発明は、以上のように、気体導入装置から導水管を通じて容器内に気体を導入するようにしたので、貯水タンク内から容器へ気体を導入しなくとも、容器から貯水タンクに向かって飲料水を流下させることができる。このため、貯水タンク内の飲料水が気体に触れることを極力抑制できるようになる。   As described above, since the gas is introduced into the container from the gas introduction device through the water conduit as described above, the drinking water from the container to the water storage tank can be supplied without introducing the gas from the water storage tank to the container. Can flow down. For this reason, it becomes possible to suppress the drinking water in the water storage tank from touching the gas as much as possible.

この発明の実施形態を図1及び図4に基づいて説明する。この実施形態の飲料水用サーバーは、図2に示すように、冷却装置29を備えた貯水タンク10から上方に伸びる導水管11に硬質樹脂製の容器1が着脱可能であり、その容器1内の飲料水wが、その自重により(落差により)、導水管11を通じて貯水タンク10内へ流下するようになっている。   An embodiment of the present invention will be described with reference to FIGS. In the drinking water server according to this embodiment, as shown in FIG. 2, a hard resin container 1 is detachably attached to a water conduit 11 extending upward from a water storage tank 10 provided with a cooling device 29. The drinking water w flows down into the water storage tank 10 through the water conduit 11 due to its own weight (due to a drop).

容器1及び貯水タンク10は、それぞれ、図1に示す飲料水用サーバー2の容器収納部3、及び本体4の内部に収容されている。その貯水タンク10から送水管21が引き出されて本体4外へ伸びており、その送水管21に開閉自在の供給バルブ20が設けられている(図2参照)。
供給バルブ20を開放すれば、貯水タンク10内の飲料水wが、図1に示す供給部5から、適宜外部のコップやペットボトル等の容器へ供給でき、また、供給バルブ20を閉鎖すれば、その供給が止まるようになっている。その供給バルブ20の開閉は、前記供給部5に設けたレバー操作により可能である。
The container 1 and the water storage tank 10 are housed in the container housing part 3 and the main body 4 of the drinking water server 2 shown in FIG. A water supply pipe 21 is drawn out from the water storage tank 10 and extends outside the main body 4, and a supply valve 20 that can be freely opened and closed is provided in the water supply pipe 21 (see FIG. 2).
If the supply valve 20 is opened, the drinking water w in the water storage tank 10 can be appropriately supplied from the supply unit 5 shown in FIG. 1 to a container such as an external cup or plastic bottle, and if the supply valve 20 is closed. The supply is stopped. The supply valve 20 can be opened and closed by operating a lever provided in the supply unit 5.

また、この飲料水用サーバー2には、前記貯水タンク10の下方に加熱装置31を備えた別の貯水タンク10(以下、加熱装置31を備えた下方の貯水タンク10を「温水タンク30」と記載し、冷却装置29を備えた上方の「貯水タンク10」と区別する)が設けられており、その温水タンク30と前記貯水タンク10とが給水管32で接続されている。この給水管32は、前記貯水タンク10の上部と温水タンク30の下部とに接続されている。なお、この実施形態では、温水タンク30の配置場所を、貯水タンク10の下方としているが、温水タンク30の配置場所はこの実施形態に限定されず、例えば、温水タンク30を貯水タンク10の側方や、あるいは上方に配置した構成も考えられる。   Further, in this drinking water server 2, another water storage tank 10 provided with a heating device 31 below the water storage tank 10 (hereinafter, the water storage tank 10 provided with the heating device 31 is referred to as "warm water tank 30"). The hot water tank 30 and the water storage tank 10 are connected to each other through a water supply pipe 32. The water supply pipe 32 is connected to the upper part of the water storage tank 10 and the lower part of the hot water tank 30. In this embodiment, the location of the hot water tank 30 is below the water storage tank 10, but the location of the hot water tank 30 is not limited to this embodiment. For example, the hot water tank 30 is located on the side of the water storage tank 10. Alternatively, a configuration arranged above or above is also conceivable.

この給水管32を通じて、貯水タンク10内の飲料水wが、その自重により、前記温水タンク30内へ流下するようになっている。なお、冷却装置29は、例えば、パイプ内に冷媒が流れるなどして貯水タンク10内の飲料水wを冷却する機能を備えた周知の冷却手段を採用でき、また、加熱装置31は、通電によって温水タンク30内の飲料水wを加熱する機能を備えた電熱器等を採用し得る。   Through this water supply pipe 32, the drinking water w in the water storage tank 10 flows into the hot water tank 30 by its own weight. Note that the cooling device 29 can employ, for example, well-known cooling means having a function of cooling the drinking water w in the water storage tank 10 by flowing a refrigerant in the pipe, and the heating device 31 is energized. An electric heater or the like having a function of heating the drinking water w in the hot water tank 30 can be adopted.

この温水タンク30及び加熱装置31等も、それぞれ、図1に示す飲料水用サーバー2の本体4の内部に収容されている。その温水タンク30から第二送水管25が引き出されて本体4外へ伸びており、その第二送水管25に開閉自在の第二供給バルブ24が設けられている。   The hot water tank 30 and the heating device 31 are also accommodated in the main body 4 of the drinking water server 2 shown in FIG. A second water supply pipe 25 is drawn out from the hot water tank 30 and extends outside the main body 4, and a second supply valve 24 that can be opened and closed is provided in the second water supply pipe 25.

第二供給バルブ24を開放すれば、温水タンク30内の加熱された飲料水wが、図1に示す供給部6から、適宜外部のコップやペットボトル等の容器へ供給でき、また、供給バルブ24を閉鎖すれば、その供給が止まるようになっている。その第二供給バルブ24の開閉は、同じく、前記供給部6に設けたレバー操作により可能である。   If the second supply valve 24 is opened, the heated drinking water w in the hot water tank 30 can be appropriately supplied from the supply unit 6 shown in FIG. 1 to a container such as an external cup or plastic bottle. If 24 is closed, the supply will stop. Similarly, the second supply valve 24 can be opened and closed by operating a lever provided in the supply unit 6.

なお、貯水タンク10及び温水タンク30の底部には、それぞれ排出バルブ22,26付きの排出管23,27が設けられている。排出バルブ22,26は、ともに、通常は閉鎖状態に維持される。排出バルブ22,26をそれぞれ開放することにより、貯水タンク10及び温水タンク30の底部に沈殿した異物等を、内部の飲料水wとともに外部に排出できる。   Discharge pipes 23 and 27 with discharge valves 22 and 26 are provided at the bottoms of the water storage tank 10 and the hot water tank 30, respectively. Both the discharge valves 22, 26 are normally kept closed. By opening the discharge valves 22 and 26 respectively, foreign matter or the like that has settled at the bottom of the water storage tank 10 and the hot water tank 30 can be discharged together with the internal drinking water w.

また、貯水タンク10や温水タンク30の底部を、例えば、下方に向かうにつれて徐々に狭まるテーパー状として、前記排出管23,27をそのテーパ状の底部の最下端部に開口して設けることもできる。
このようにすれば、異物の排出効果がさらに高まるといえる。
Further, for example, the bottom of the water storage tank 10 or the hot water tank 30 may have a tapered shape that gradually narrows downward, and the discharge pipes 23 and 27 may be opened at the lowermost end of the tapered bottom. .
If it does in this way, it can be said that the discharge effect of a foreign material increases further.

内部に飲料水wを収容した前記容器1は、予め殺菌処理等が施された状態の飲料水wが封入されて密閉された状態で市場に供給されているものであり、その容器1の開口部に、前記貯水タンク10から上方に伸びる導水管11を差し込み可能である。   The container 1 containing the drinking water w is supplied to the market in a state in which the drinking water w that has been previously sterilized is sealed and sealed, and the container 1 is opened. A water guide pipe 11 extending upward from the water storage tank 10 can be inserted into the section.

この容器1の着脱構造としては、周知の構造を採用してよいが、この実施形態では、上記のように、樹脂製の容器1の開口部内に前記導水管11を差し込むように取付けることにより、樹脂製容器1が台座17によって支えられるとともに、その開口部と導水管11との間の液密がパッキン等により維持されるようになっている。
このため、容器1内の飲料水wが周囲にこぼれることなく、導水管11を通じて貯水タンク10内へ自重により流下するようになっている。
As the attachment / detachment structure of the container 1, a known structure may be adopted, but in this embodiment, as described above, by attaching the water conduit 11 into the opening of the resin container 1, The resin container 1 is supported by a pedestal 17 and the liquid tightness between the opening and the water conduit 11 is maintained by packing or the like.
For this reason, the drinking water w in the container 1 flows down into the water storage tank 10 by its own weight through the water conduit 11 without spilling around.

なお、上記のように、容器1の開口部内周と導水管11外周との間は液密が維持されているが、仮に、わずかにこぼれた飲料水wがあった場合、その飲料水wは、台座17の凹部17aの底に設けた排出路18a,18cを通じて受け部19へ排出されるようになっている。このため、台座17の凹部17a内にこぼれた水が滞留することがない。   As described above, the liquid tightness is maintained between the inner periphery of the opening of the container 1 and the outer periphery of the conduit 11, but if there is a slightly spilled drinking water w, the drinking water w is The base 17 is discharged to the receiving portion 19 through discharge paths 18a and 18c provided at the bottom of the concave portion 17a. For this reason, the spilled water does not stay in the recess 17a of the base 17.

前記導水管11の途中に、接続管41を通じて気体導入装置40が接続されている。この気体導入装置40は、内部に中空の空気溜まり43を有し、その空気溜まり43と外部とがエアフィルタ44を介して隔てられている。   A gas introducing device 40 is connected through the connecting pipe 41 in the middle of the water conduit 11. The gas introduction device 40 has a hollow air reservoir 43 inside, and the air reservoir 43 and the outside are separated by an air filter 44.

また、その気体導入装置40と前記導水管11とを繋ぐ接続管41の途中に、前記気体導入装置40側から導水管11側への流体の流れのみを許容する逆止弁42が設けられている。逆止弁42は、前記気体導入装置40側から導水管11側への流体(特に、空気(気体)b)の流れを許容し、逆に、導水管11側から気体導入装置40側への流体(特に、飲料水w)の流れを許容しない。   Further, a check valve 42 that allows only the flow of fluid from the gas introduction device 40 side to the water conduit 11 side is provided in the middle of the connection pipe 41 that connects the gas introduction device 40 and the water conduit 11. Yes. The check valve 42 allows the flow of fluid (particularly air (gas) b) from the gas introduction device 40 side to the water conduit 11 side, and conversely, from the water conduit 11 side to the gas introduction device 40 side. The flow of fluid (especially drinking water w) is not allowed.

また、前記接続管41は、前記導水管11への接続箇所よりも高い位置を通過して前記気体導入装置40に至っている。具体的には、図中に示すように、前記導水管11への接続箇所から水平方向側方に伸びて、そこで上方へ屈曲し、一定高さまで上方へ伸びた後、その後、再度水平方向に伸びて気体導入装置40の空気溜まり43に至っている。
前記逆止弁42は、その接続管41のうち、上下方向に伸びる部分に設けられている。逆止弁42を接続管41の上下方向に伸びる部分に設ければ、飲料水wの逆流防止に効果的である。
In addition, the connection pipe 41 passes through a position higher than the connection location to the water conduit 11 and reaches the gas introduction device 40. Specifically, as shown in the figure, it extends horizontally from the connection point to the water conduit 11, bends upward there, extends upward to a certain height, and then again horizontally. It extends to the air reservoir 43 of the gas introduction device 40.
The check valve 42 is provided in a portion of the connecting pipe 41 that extends in the vertical direction. Providing the check valve 42 in a portion extending in the vertical direction of the connecting pipe 41 is effective in preventing the backflow of the drinking water w.

また、前記導水管11の前記気体導入装置40の接続箇所よりも下方に、前記容器1側から貯水タンク10側への流体の流れのみを許容する逆止弁12が設けられている。この実施形態では、逆止弁12は、導水管11の下端に設けられている。この逆止弁12は、導水管11の容器1側から貯水タンク10側への流体(特に、飲料水w等)の流れを許容し、逆に、貯水タンク10側から容器1側への流体(特に、飲料水w、空気(気体)a等)の流れを許容しないようになっている。   Further, a check valve 12 that allows only the flow of fluid from the container 1 side to the water storage tank 10 side is provided below the connection portion of the water conduit 11 to the gas introduction device 40. In this embodiment, the check valve 12 is provided at the lower end of the water conduit 11. This check valve 12 allows a flow of fluid (particularly drinking water w) from the container 1 side of the water conduit 11 to the water storage tank 10 side, and conversely, fluid from the water storage tank 10 side to the container 1 side. (In particular, the flow of drinking water w, air (gas) a, etc.) is not allowed.

前記貯水タンク10の上端には通気孔28が設けられている。その通気孔28は、貯水タンク10の排気手段として排気弁28aを備える。この排気弁28aは、前記貯水タンク10内が満水状態となった際にその通気孔28を閉じてその貯水タンク10内の満水状態を維持できるようにし、且つ、前記貯水タンク10内に気体aが混入した状態となった際にはその通気孔28を開けて貯水タンク10内の気体aを外部に開放できるように、手動で操作されるものである。   A vent hole 28 is provided at the upper end of the water storage tank 10. The vent hole 28 includes an exhaust valve 28 a as an exhaust unit for the water storage tank 10. The exhaust valve 28a closes the vent hole 28 when the water storage tank 10 becomes full to maintain the water full state in the water storage tank 10, and the gas a When the gas enters the state, the air hole 28 is opened and the gas a in the water storage tank 10 can be opened to the outside so as to be manually operated.

この排気弁28aは、前記貯水タンク10の上端に設けた凸部10aに臨むように設けられ、図3(a)(b)に示すように、バネ等の弾性部材の付勢力によって弁体が閉弁方向に付勢されている。また、その付勢力に抗して、弁軸(操作部)28cを手で押すことにより弁体が開弁方向へ移動するようになっている。   The exhaust valve 28a is provided so as to face the convex portion 10a provided at the upper end of the water storage tank 10, and as shown in FIGS. 3 (a) and 3 (b), the valve body is moved by the urging force of an elastic member such as a spring. Energized in the valve closing direction. Further, the valve element moves in the valve opening direction by pushing the valve shaft (operation part) 28c by hand against the biasing force.

このため、例えば、容器1内の飲料水wがなくなって新しい容器1に取替える際に、前記貯水タンク10内に空気aが入り込んだ場合、貯水タンク10内の飲料水wの液面上に空気aが介在し、その空気aが凸部10a内に入り込む。このとき、前記弁軸(操作部)28cを手で押せば排気弁28aが開き、通気孔28を通じてこれらの空気aを外部へ排出できるようになっている。なお、排気弁28aは、凸部10a内に介在する空気aを残らず排出できるよう、凸部10a内の最上部に臨むことが望ましい。
なお、この排気弁28aは、飲料水wが入っていない貯水タンク10内に初めて飲料水wを入れる場合等においても使用することができる。
For this reason, for example, when the drinking water w in the container 1 runs out and is replaced with a new container 1, when air a enters the water storage tank 10, the air is on the liquid level of the drinking water w in the water storage tank 10. a is interposed, and the air a enters the convex portion 10a. At this time, if the valve shaft (operation part) 28c is pushed by hand, the exhaust valve 28a is opened, and the air a can be discharged to the outside through the vent hole 28. It is desirable that the exhaust valve 28a faces the uppermost part in the convex part 10a so that all the air a interposed in the convex part 10a can be discharged.
The exhaust valve 28a can also be used when the drinking water w is first put into the water storage tank 10 that does not contain the drinking water w.

この飲料水用サーバー2の作用を説明すると、図4に示すように、貯水タンク10内に飲料水wが全くない状態において、容器1を導水管11に差し込んで台座17に容器1を固定する。樹脂製容器1内の飲料水wが、その自重により、徐々に貯水タンク10内へ流下しようとする。   The operation of this drinking water server 2 will be described. As shown in FIG. 4, in a state where there is no drinking water w in the water storage tank 10, the container 1 is inserted into the water conduit 11 and the container 1 is fixed to the pedestal 17. . The drinking water w in the resin container 1 tends to gradually flow into the water storage tank 10 due to its own weight.

容器1内の飲料水wが、その落差で貯水タンク10、及び給水管32を通じて温水タンク30へ流下しようとすることにより、その容器1内が負圧となる。このため、その負圧を解消するために、前記気体導入装置40から前記導水管11内に空気bが自然に導入されていく。気体導入装置40から導入された空気bが、前記導水管11を通じて前記容器1内に侵入すると、その空気bの侵入により容器1内の負圧が解消される。負圧が解消されると、再度、容器1から貯水タンク10、及び給水管32を通じて温水タンク30へ飲料水wが流下する。   When the drinking water w in the container 1 tries to flow down to the hot water tank 30 through the water storage tank 10 and the water supply pipe 32 by the head, the inside of the container 1 becomes negative pressure. For this reason, in order to eliminate the negative pressure, the air b is naturally introduced from the gas introduction device 40 into the water conduit 11. When the air b introduced from the gas introduction device 40 enters the container 1 through the water conduit 11, the negative pressure in the container 1 is eliminated by the penetration of the air b. When the negative pressure is eliminated, the drinking water w flows again from the container 1 to the hot water tank 30 through the water storage tank 10 and the water supply pipe 32.

このとき、気体導入装置40の空気溜まり43にはエアフィルタ44が設けられているので、清浄な空気bが供給される。この気体導入装置40に、紫外線(UV)灯やオゾン発生器等による空気bの殺菌装置を取付ければ、さらに好ましいといえる。また、接続管41にボンベ等を接続することにより、そのボンベ等に封入された空気以外の気体bを、前記容器1内が負圧となった際にその負圧を解消するように適宜供給できるようにしてもよい。   At this time, since the air filter 44 is provided in the air reservoir 43 of the gas introduction device 40, clean air b is supplied. It can be said that it is more preferable to attach an air b sterilization device such as an ultraviolet (UV) lamp or an ozone generator to the gas introduction device 40. Further, by connecting a cylinder or the like to the connection pipe 41, a gas b other than air sealed in the cylinder or the like is appropriately supplied so as to eliminate the negative pressure when the inside of the container 1 becomes a negative pressure. You may be able to do it.

また、前記接続管41に逆止弁42を設けたことにより、容器1内の負圧が解消した際に、飲料水wが気体導入装置40側に逆流することが防止される。   In addition, by providing the check valve 42 in the connection pipe 41, it is possible to prevent the drinking water w from flowing back to the gas introduction device 40 side when the negative pressure in the container 1 is eliminated.

容器1から貯水タンク10へ飲料水wが流下する際に、貯水タンク10内には空気aが介在している。このため、飲料水wの流下により貯水タンク10内の空気圧が上昇すれば、その空気圧の上昇により飲料水wの流下が自動的に一時停止する。
そこで、貯水タンク10の上部に設けた前記通気孔28の前記排気弁28aを開放して内部の空気aを貯水タンク10外に排出させれば、再度、飲料水wの流下が開始する。
When drinking water w flows from the container 1 to the water storage tank 10, air a is present in the water storage tank 10. For this reason, if the air pressure in the water storage tank 10 increases due to the flow of the drinking water w, the flow of the drinking water w automatically pauses due to the increase in the air pressure.
Therefore, if the exhaust valve 28a of the vent hole 28 provided in the upper part of the water storage tank 10 is opened to discharge the internal air a to the outside of the water storage tank 10, the drinking water w starts to flow again.

このとき、貯水タンク10及び温水タンク30内にある程度の量の飲料水wが溜まるまで、排気弁28aを一定の時間、開放状態に維持しておいてもよいし、あるいは、飲料水wの流下状況を見ながら、流下が止まればその都度排気弁28aを開放するなど、断続的に開放操作を行ってもよい。
貯水タンク10及び温水タンク30へも飲料水wが流下し、温水タンク30が満水状態になった後、貯水タンク10内の水位が上昇していく。
通気孔28を通じてその貯水タンク10内の空気aを全て排出することにより、最終的に貯水タンク10が図4(c)に示すように満水状態になる。この間、樹脂製容器1内の飲料水wがなくなれば、適宜、新しい飲料水w入りの樹脂製容器1に取替えてもよい。
At this time, the exhaust valve 28a may be kept open for a certain time until a certain amount of drinking water w is accumulated in the water storage tank 10 and the hot water tank 30, or the drinking water w flows down. While watching the situation, the opening operation may be intermittently performed such as opening the exhaust valve 28a each time the flow stops.
The drinking water w also flows down to the water storage tank 10 and the hot water tank 30, and after the hot water tank 30 becomes full, the water level in the water storage tank 10 rises.
By exhausting all the air a in the water storage tank 10 through the vent hole 28, the water storage tank 10 finally becomes full as shown in FIG. During this time, if there is no drinking water w in the resin container 1, it may be replaced with a resin container 1 containing new drinking water w as appropriate.

図4(c)に示すように、貯水タンク10内が満水状態になり、排気弁28aが閉弁して通気孔28が閉じられると、貯水タンク10内が飲料水wで高圧となることにより、容器1内の飲料水wは落差圧解消のため接続管41に圧をかけ、逆止弁42を気体導入装置40側へ押し上げる。このため、容器1内及び貯水タンク10内がともに高圧を維持した状態に保たれ、飲料水wの流下が終了する。   As shown in FIG. 4C, when the inside of the water storage tank 10 becomes full, the exhaust valve 28a is closed and the vent hole 28 is closed, the inside of the water storage tank 10 becomes high pressure with drinking water w. The drinking water w in the container 1 applies pressure to the connecting pipe 41 to eliminate the drop pressure, and pushes the check valve 42 toward the gas introduction device 40 side. For this reason, both the inside of the container 1 and the inside of the water storage tank 10 are maintained in a state in which high pressure is maintained, and the flow of the drinking water w ends.

なお、この実施形態では、導水管11の下端に逆止弁12を設けているので、その貯水タンク10内の空気a、あるいは飲料水wが容器1側に逆流しないようになっている。   In this embodiment, since the check valve 12 is provided at the lower end of the water conduit 11, the air a or the drinking water w in the water storage tank 10 is prevented from flowing back to the container 1 side.

また、飲料水wの流下中、温水タンク30内においても、前記貯水タンク10と同様の空気aの排出操作を行う。すなわち、例えば、給水管32からの飲料水wの流下が停止した場合は、適宜、第二供給バルブ24を開放して内部の空気aを第二送水管25を通じて温水タンク30外に排出させるなどの操作を行う。
あるいは、温水タンク30の上部にも貯水タンク10と同じ機能を有する通気孔28及び排気弁28a等の排気手段を設けてもよい。
In addition, during the flow of the drinking water w, the air a is discharged in the hot water tank 30 as in the case of the water storage tank 10. That is, for example, when the flow of the drinking water w from the water supply pipe 32 stops, the second supply valve 24 is appropriately opened to discharge the internal air a to the outside of the hot water tank 30 through the second water supply pipe 25. Perform the operation.
Alternatively, exhaust means such as the vent hole 28 and the exhaust valve 28 a having the same function as the water storage tank 10 may be provided in the upper part of the hot water tank 30.

前記貯水タンク10内が満水状態になった状態で、図4(d)に示すように、前記供給バルブ20を開放すると、貯水タンク10内の飲料水wが、前記供給部5を通じて外部へ供給される。
このとき、貯水タンク10内の水位は一旦低下するが、前記排気弁28aは閉じたままに維持されているので、貯水タンク10内は負圧状態となる。このように貯水タンク10内が負圧状態に維持されるので、その貯水タンク10内の水位低下を補うように容器1から飲料水wが流下する。その飲料水wの流下は、前記気体導入装置40から導水管11を通じて容器1内に空気bが導入されながら続き、貯水タンク10内が満水状態になって停止する。このため、貯水タンク10内は、常に満水状態に維持される。
When the supply valve 20 is opened while the water storage tank 10 is full, the drinking water w in the water storage tank 10 is supplied to the outside through the supply unit 5 as shown in FIG. Is done.
At this time, the water level in the water storage tank 10 is temporarily lowered, but the exhaust valve 28a is kept closed, so that the water storage tank 10 is in a negative pressure state. Thus, since the inside of the water storage tank 10 is maintained in a negative pressure state, the drinking water w flows down from the container 1 so as to compensate for a decrease in the water level in the water storage tank 10. The flow of the drinking water w continues while the air b is being introduced into the container 1 from the gas introduction device 40 through the water conduit 11, and the water storage tank 10 becomes full and stops. For this reason, the inside of the water storage tank 10 is always maintained in a full water state.

このように、気体導入装置40から導水管11を通じて容器1内に空気bを導入するようにしたので、貯水タンク10内から容器1に向かって空気aを導入しなくとも、容器1から貯水タンク10に向かって飲料水wを流下させることができる。このため、貯水タンク10内を常に満水状態に維持し、内部の飲料水wが空気に触れることを極力抑制できるようになる。   As described above, since the air b is introduced into the container 1 from the gas introduction device 40 through the water conduit 11, the water tank can be transferred from the container 1 without introducing the air a from the water tank 10 toward the container 1. The drinking water w can be made to flow down toward 10. For this reason, the inside of the water storage tank 10 is always maintained in a full water state, and it is possible to suppress the internal drinking water w from touching the air as much as possible.

なお、前述のように、容器1の差替え時などに、貯水タンク10の上部、特に、その貯水タンク10の上端に設けた凸部10a内に、図3(a)に示すように、若干の空気aが溜まった状態となることがある。このとき、排気弁28aを操作して開弁させれば、その凸部10a内の空気aを排出路18b,18cを通じて、図3(b)に示すように、外部へ排出できる。このとき、空気aに混ざって飲料水wも若干排出されるが、その量はわずかであるのでさしつかえない。わずかに排出された飲料水wは、排出路18bを通じて外部へ排出される。   As described above, when the container 1 is replaced, the upper portion of the water storage tank 10, in particular, the convex portion 10 a provided at the upper end of the water storage tank 10, as shown in FIG. Air a may accumulate. At this time, if the exhaust valve 28a is operated and opened, the air a in the convex portion 10a can be discharged to the outside through the discharge paths 18b and 18c as shown in FIG. At this time, the drinking water w is also slightly discharged mixed with the air a, but the amount thereof is so small that it does not matter. The slightly discharged drinking water w is discharged to the outside through the discharge path 18b.

このように空気aを排出すると、凸部10a内には、その空隙を埋めるように容器1からさらに飲料水wが流下しようとする。このため、容器1内が負圧になって、その負圧を解消するように、図4(d)に示すように、気体導入装置40から容器内に空気bが導入されるのである。   When the air a is discharged in this way, the drinking water w further flows down from the container 1 so as to fill the gap in the convex portion 10a. For this reason, as shown in FIG. 4D, air b is introduced into the container from the gas introducing device 40 so that the inside of the container 1 becomes negative pressure and the negative pressure is eliminated.

このため、貯水タンク10内の水位は、図4(c)に示すように満水状態、すなわち、空気aが全く介在しない状態、あるいは、介在したとしてもその量がほんの僅かな状態に戻る。このように、排気弁28aの開閉を適宜操作することにより、貯水タンク10内を常に満水状態に維持することができる。   For this reason, the water level in the water storage tank 10 returns to a full water state as shown in FIG. 4 (c), that is, a state in which no air a is present, or even a small amount even if it is present. Thus, by appropriately opening and closing the exhaust valve 28a, the inside of the water storage tank 10 can be always kept full.

この実施形態は、貯水タンク10の排気手段として、手動操作により通気孔28の開閉を行う排気弁28aを採用したが、他の構成からなる排気手段を採用することもできる。   In this embodiment, the exhaust valve 28a that opens and closes the vent hole 28 by manual operation is adopted as the exhaust means of the water storage tank 10, but exhaust means having other configurations can also be adopted.

例えば、前記排気手段として、前記貯水タンク10内から貯水タンク10外への気体aの移動を許容し、貯水タンク10外から貯水タンク10内への気体aの移動を許容しない機能を有する逆止弁形式の排気弁28aと、前記貯水タンク10内が満水状態となった際に前記通気孔28を閉じ、その満水状態から水位が下がった際に前記通気孔28を開ける機能を有する開閉弁28bとを備えた構成とすることができる。
また、その開閉弁28bとしてフロート弁形式の弁装置を採用することができる。フロート弁であれば、弁体が水よりも軽いので、貯水タンク10内の水位が下がれば通気孔28を自動的に開放してその貯水タンク10内の気体aを排出し、貯水タンク10内の水位が上がれば通気孔28を自動的に閉じることができる。
For example, the exhaust means has a function of allowing the movement of the gas a from the water tank 10 to the outside of the water tank 10 and not allowing the movement of the gas a from the water tank 10 to the water tank 10. A valve-type exhaust valve 28a and an on-off valve 28b having a function of closing the vent hole 28 when the water storage tank 10 is full, and opening the vent hole 28 when the water level drops from the full state. It can be set as the structure provided with.
Further, a float valve type valve device can be adopted as the on-off valve 28b. If it is a float valve, the valve body is lighter than water. Therefore, when the water level in the water storage tank 10 drops, the vent hole 28 is automatically opened to discharge the gas a in the water storage tank 10, When the water level rises, the vent hole 28 can be automatically closed.

開閉弁28bとしてフロート弁体を備えた弁装置を採用した実施形態を、図5に示す。この実施形態は、前記開閉弁28bとしてフロート弁体を備えた構成とするとともに、併せて、貯水タンク10を冷却装置29を備えた貯水タンク10のみとした構成である。温水タンク30の設置は省略している。また、前記排気弁28aとしては逆止弁形式の弁装置を採用している。
飲料水用サーバーの構成としては、前述の実施形態のように、加熱装置31を備えた温水タンク30と冷却装置29を備えた貯水タンク10の両方を備えていてもよいし、この図5に示す形態のように、加熱装置31を備えた温水タンク30を省略した構成としてもよい。また、貯水タンク10の冷却装置29を省略した構成も考えられる。
FIG. 5 shows an embodiment in which a valve device having a float valve body is employed as the on-off valve 28b. In this embodiment, the open / close valve 28b is provided with a float valve body, and the water storage tank 10 is provided with only the water storage tank 10 provided with the cooling device 29. The installation of the hot water tank 30 is omitted. The exhaust valve 28a employs a check valve type valve device.
As a configuration of the drinking water server, both the hot water tank 30 provided with the heating device 31 and the water storage tank 10 provided with the cooling device 29 may be provided as in the above-described embodiment. It is good also as a structure which abbreviate | omitted the hot water tank 30 provided with the heating apparatus 31 like the form shown. Moreover, the structure which abbreviate | omitted the cooling device 29 of the water storage tank 10 is also considered.

開閉弁28bは、貯水タンク10内の飲料水wの水位が満水状態よりもやや下がっていると、その水位の下降とともにフロート弁体も下降する。フロート弁体が下降すれば、開閉弁28bが開弁する。また、貯水タンク10内の水位が上昇して満水状態になれば、フロート弁体も上昇して開閉弁28bを閉じ、その満水状態で貯水タンク10を密閉することができる。   When the water level of the drinking water w in the water storage tank 10 is slightly lower than the full water level, the on-off valve 28b also lowers the float valve body as the water level drops. When the float valve body is lowered, the on-off valve 28b is opened. When the water level in the water storage tank 10 rises and becomes full, the float valve body also rises and closes the on-off valve 28b, and the water storage tank 10 can be sealed in the full water state.

このため、図5(a)(b)に示すように、貯水タンク10内が満水状態から水位が低下すると開閉弁28bが開く。しかし、通気孔28には、その開閉弁28bの上部に逆止弁形式の排気弁28aが設けられているので、貯水タンク10内は負圧状態であれば排気弁28aが開かない。このため、貯水タンク10内の負圧状態は維持され、その負圧状態が解消するまで容器1からの飲料水wの流下が続く。貯水タンク10内が満水状態になれば、前記開閉弁28bが閉じられる。   Therefore, as shown in FIGS. 5 (a) and 5 (b), the opening / closing valve 28b opens when the water level in the water storage tank 10 drops from a full state. However, since the check hole type exhaust valve 28a is provided in the upper part of the on-off valve 28b in the vent hole 28, the exhaust valve 28a does not open if the inside of the water storage tank 10 is in a negative pressure state. For this reason, the negative pressure state in the water storage tank 10 is maintained, and the flow of the drinking water w from the container 1 continues until the negative pressure state is eliminated. When the inside of the water storage tank 10 becomes full, the on-off valve 28b is closed.

図5(c)に示すように、貯水タンク10内が満水状態になって通気孔28が閉じられると、貯水タンク10内が飲料水wで高圧となることにより、容器1内の飲料水wは落差圧解消のため接続管41に圧をかけ、逆止弁42を気体導入装置40側へ押し上げる。このため、容器1内及び貯水タンク10内がともに高圧を維持した状態に保たれ、飲料水wの流下が終了する。   As shown in FIG. 5 (c), when the inside of the water storage tank 10 becomes full and the vent hole 28 is closed, the inside of the water storage tank 10 becomes high pressure with the drinking water w, so that the drinking water w in the container 1 is filled. Applies pressure to the connecting pipe 41 to eliminate the drop pressure, and pushes the check valve 42 toward the gas introduction device 40. For this reason, both the inside of the container 1 and the inside of the water storage tank 10 are maintained in a state in which high pressure is maintained, and the flow of the drinking water w ends.

また、容器1の差替え等により、貯水タンク10内に空気aが入った場合には、貯水タンク10内の水位が下がって開閉弁28bが開き、また、空気aが介在することにより加圧状態となれば排気弁28aも開くので、貯水タンク10内に介在する空気aが貯水タンク10外に残らず排出される。   Further, when air a enters the water storage tank 10 due to replacement of the container 1 or the like, the water level in the water storage tank 10 is lowered, the on-off valve 28b is opened, and the air a is interposed so as to be pressurized. Then, since the exhaust valve 28a is also opened, the air a intervening in the water storage tank 10 is exhausted without remaining outside the water storage tank 10.

このように空気aを排出されると、貯水タンク10内には、その空隙を埋めるように容器1からさらに飲料水wが流下しようとする。このため、容器1内が負圧になって、その負圧を解消するように、図5(d)に示すように、気体導入装置40から容器内に空気bが導入され、貯水タンク10内は常に満水状態に維持されるのである。   When the air a is discharged in this way, the drinking water w further flows down from the container 1 so as to fill the gap in the water storage tank 10. For this reason, as shown in FIG. 5 (d), air b is introduced into the container from the gas introduction device 40 so that the negative pressure in the container 1 becomes negative and the negative pressure is eliminated. Is always kept full of water.

一実施形態の飲料水用サーバーの正面図The front view of the server for drinking water of one embodiment 図1の内部の構造を示す正面図Front view showing the internal structure of FIG. (a)(b)は排気弁の作用を示す要部拡大図(A) (b) is a principal part enlarged view which shows the effect | action of an exhaust valve (a)〜(d)は、同実施形態の作用を示す正面図(A)-(d) is a front view which shows the effect | action of the same embodiment (a)〜(d)は、他の実施形態の作用を示す正面図(A)-(d) is a front view which shows the effect | action of other embodiment. (a)〜(c)は、従来の飲料水用サーバーの作用を示す正面図(A)-(c) is a front view which shows the effect | action of the server for conventional drinking water.

符号の説明Explanation of symbols

1 容器
2 飲料水用サーバー
3 容器収納部
4 本体
5 飲料水供給部(常温水/冷水)
6 飲料水供給部(温水)
10 貯水タンク
10a 凸部
11 導水管
12,14,42 逆止弁
17 台座
17a 凹部
18a,18b,18c 排出路
19 受け部
20 供給バルブ
21 送水管
22,26 排出バルブ
23,27 排出管
24 第二供給バルブ(供給バルブ)
25 第二送水管(送水管)
28 通気孔
28a 排気弁(排気手段)
28b 開閉弁(排気手段)
28c 弁軸(操作部)
29 冷却装置
30 温水タンク
31 加熱装置
32 給水管
40 気体導入装置
41 接続管
43 空気溜まり
44 エアフィルタ
DESCRIPTION OF SYMBOLS 1 Container 2 Drinking water server 3 Container storage part 4 Main body 5 Drinking water supply part (normal temperature water / cold water)
6 Drinking water supply section (hot water)
DESCRIPTION OF SYMBOLS 10 Water storage tank 10a Convex part 11 Water guide pipes 12, 14, 42 Check valve 17 Base 17a Concave parts 18a, 18b, 18c Drain path 19 Receiving part 20 Supply valve 21 Water supply pipe 22, 26 Drain valve 23, 27 Drain pipe 24 Second Supply valve (Supply valve)
25 Second water pipe (water pipe)
28 Ventilation hole 28a Exhaust valve (exhaust means)
28b On-off valve (exhaust means)
28c Valve shaft (operation part)
29 Cooling device 30 Hot water tank 31 Heating device 32 Water supply pipe 40 Gas introduction device 41 Connection pipe 43 Air reservoir 44 Air filter

Claims (9)

貯水タンク10から上方に伸びる導水管11に容器1が着脱可能であり、前記容器1内に気体bが侵入することによりその容器1内の飲料水wがその導水管11を通じて貯水タンク10内へ流下するようになっており、その貯水タンク10から送水管21を引き出してその送水管21に開閉自在の供給バルブ20を設けてその貯水タンク10内の飲料水wを供給できるようにした飲料水用サーバーにおいて、
前記導水管11に気体導入装置40を接続してその気体導入装置40から前記導水管11内に気体bを導入可能とし、前記容器1内が負圧状態となった際に、前記気体導入装置40から前記導水管11を通じて前記容器1内に気体bを侵入させ、その気体bの侵入により前記容器1内の飲料水wを貯水タンク10内へ流下させることを特徴とする飲料水用サーバー。
The container 1 can be attached to and detached from a water conduit 11 extending upward from the water storage tank 10, and when the gas b enters the container 1, the drinking water w in the container 1 enters the water storage tank 10 through the water conduit 11. Drinking water that is designed to flow down and that is provided with a supply valve 20 that can be opened and closed to the water supply pipe 21 by pulling out the water supply pipe 21 from the water storage tank 10 so that the drinking water w in the water storage tank 10 can be supplied. Server for
When the gas introducing device 40 is connected to the water conduit 11 so that the gas b can be introduced into the water conduit 11 from the gas introducing device 40, and the inside of the container 1 is in a negative pressure state, the gas introducing device A drinking water server characterized in that a gas b enters the container 1 from 40 through the water conduit 11, and the drinking water w in the container 1 flows down into the water storage tank 10 by the penetration of the gas b.
前記貯水タンク10の上端に通気孔28を設け、その通気孔28に排気手段を設け、その排気手段により、前記貯水タンク10内が満水状態となった際にその通気孔28を閉じてその貯水タンク10内の満水状態を維持できるようにし、且つ、前記貯水タンク10内に気体aが混入した状態となった際にはその通気孔28を開けて貯水タンク10内の気体aを外部に開放できるようにしたことを特徴とする請求項1に記載の飲料水用サーバー。   A vent hole 28 is provided at the upper end of the water storage tank 10, and an exhaust means is provided in the vent hole 28. When the inside of the water storage tank 10 is filled with the exhaust means, the vent hole 28 is closed to store the water. The tank 10 can be maintained in a full state, and when the gas a is mixed in the water storage tank 10, the vent 28 is opened to release the gas a in the water storage tank 10 to the outside. The drinking water server according to claim 1, wherein the drinking water server can be made. 前記排気手段は、前記貯水タンク10内が満水状態になった状態で前記供給バルブ20を開放した際に、前記貯水タンク10内が負圧となっても外部の気体aをその貯水タンク10内へ通さずにその貯水タンク10内の負圧状態を維持する機能を有することを特徴とする請求項2に記載の飲料水用サーバー。   When the supply valve 20 is opened in a state where the water storage tank 10 is full, the exhaust means removes the external gas a in the water storage tank 10 even if the pressure inside the water storage tank 10 becomes negative. 3. The drinking water server according to claim 2, which has a function of maintaining a negative pressure state in the water storage tank 10 without passing through the water storage tank 10. 前記排気手段は、前記貯水タンク10内から貯水タンク10外への気体aの移動を許容し、貯水タンク10外から貯水タンク10内への気体aの移動を許容しない機能を有する排気弁28aと、前記貯水タンク10内が満水状態となった際に前記通気孔28を閉じ、その満水状態から水位が下がった際に前記通気孔28を開ける機能を有する開閉弁28bとを備えることを特徴とする請求項3に記載の飲料水用サーバー。   The exhaust means allows the movement of the gas a from the inside of the water storage tank 10 to the outside of the water storage tank 10 and has an exhaust valve 28a having a function that does not allow the movement of the gas a from the outside of the water storage tank 10 to the inside of the water storage tank 10. And an on-off valve 28b having a function of closing the vent hole 28 when the water storage tank 10 is full and opening the vent hole 28 when the water level is lowered from the full water state. The drinking water server according to claim 3. 前記導水管11の前記気体導入装置40の接続箇所よりも下方に、前記容器1側から貯水タンク10側への流体の流れのみを許容する逆止弁12を設けたことを特徴とする請求項1乃至4のいずれかに記載の飲料水用サーバー。   The check valve 12 for allowing only the flow of fluid from the container 1 side to the water storage tank 10 side is provided below the connection location of the gas introduction device 40 in the water conduit 11. The server for drinking water according to any one of 1 to 4. 前記気体導入装置40と前記導水管11とは接続管41で接続されており、その接続管41に、前記気体導入装置40側から導水管11側への流体の流れのみを許容する逆止弁42を設けたことを特徴とする請求項1乃至5のいずれかに記載の飲料水用サーバー。   The gas introduction device 40 and the water conduit 11 are connected by a connection pipe 41, and the check valve that allows only the flow of fluid from the gas introduction device 40 side to the water conduit 11 to the connection pipe 41. The drinking water server according to claim 1, wherein 42 is provided. 前記接続管41は、前記導水管11への接続箇所よりも高い位置を通過して前記気体導入装置40に至ることを特徴とする請求項1乃至6のいずれかに記載の飲料水用サーバー。   The server for drinking water according to any one of claims 1 to 6, wherein the connection pipe 41 passes through a position higher than a connection place to the water guide pipe 11 and reaches the gas introduction device 40. 前記容器1内が負圧状態となった際に、前記気体導入装置40から前記導水管11内に気体を強制的に導入するようにしたことを特徴とする請求項1乃至7のいずれかに記載の飲料水用サーバー。   The gas is forcibly introduced into the water conduit 11 from the gas introduction device 40 when the inside of the container 1 is in a negative pressure state. The server for drinking water described. 請求項1乃至8のいずれかに記載の飲料水用サーバーを用いた飲料水の供給方法であって、貯水タンク10から上方に伸びる導水管11に容器1が着脱可能であり、前記容器1内に気体bが侵入することによりその容器1内の飲料水wがその導水管11を通じて貯水タンク10内へ流下するようになっており、その貯水タンク10から送水管21を引き出してその送水管21に開閉自在の供給バルブ20を設けてその貯水タンク10内の飲料水wを供給できるようになっており、
前記導水管11に気体導入装置40を接続してその気体導入装置40から前記導水管11内に気体を導入可能とし、前記容器1内が負圧状態となった際に、前記気体導入装置40から前記導水管11を通じて前記容器1内に気体bを侵入させ、その気体の侵入により前記容器1内の飲料水wを貯水タンク10内へ流下させるようにしたことを特徴とする飲料水用サーバーを用いた飲料水の供給方法。
A method for supplying drinking water using the drinking water server according to claim 1, wherein the container 1 is detachable from a water conduit 11 extending upward from a water storage tank 10, When the gas b enters the water, the drinking water w in the container 1 flows down into the water storage tank 10 through the water conduit 11, and the water supply pipe 21 is pulled out from the water storage tank 10 and the water supply pipe 21. An openable / closable supply valve 20 is provided to supply drinking water w in the water storage tank 10,
When the gas introduction device 40 is connected to the water conduit 11 and gas can be introduced into the water conduit 11 from the gas introduction device 40, the gas introduction device 40 is in a negative pressure state. The drinking water server is characterized in that the gas b enters the container 1 through the water conduit 11 and the drinking water w in the container 1 flows down into the water storage tank 10 by the intrusion of the gas. Drinking water supply method using
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011037479A (en) * 2009-08-11 2011-02-24 Fujiyama Corp Liquid storage device
JP2012071900A (en) * 2012-01-20 2012-04-12 Fujiyama Corp Server for potable water

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JP2005308297A (en) * 2004-04-21 2005-11-04 Fuji Electric Retail Systems Co Ltd Dispenser for drinking water
WO2006018614A1 (en) * 2004-08-14 2006-02-23 Ebac Limited Bottled liquid dispensers
JP2006341915A (en) * 2005-06-10 2006-12-21 Ohnit Co Ltd Potable water dispenser
JP2007240117A (en) * 2006-03-10 2007-09-20 Esuto:Kk Cold water generator and hot/cold water server using the same

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JPH07187295A (en) * 1993-12-22 1995-07-25 Yokohama Rubber Co Ltd:The Dispenser for beverage
JP2005308297A (en) * 2004-04-21 2005-11-04 Fuji Electric Retail Systems Co Ltd Dispenser for drinking water
WO2006018614A1 (en) * 2004-08-14 2006-02-23 Ebac Limited Bottled liquid dispensers
JP2006341915A (en) * 2005-06-10 2006-12-21 Ohnit Co Ltd Potable water dispenser
JP2007240117A (en) * 2006-03-10 2007-09-20 Esuto:Kk Cold water generator and hot/cold water server using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011037479A (en) * 2009-08-11 2011-02-24 Fujiyama Corp Liquid storage device
JP2012071900A (en) * 2012-01-20 2012-04-12 Fujiyama Corp Server for potable water

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