JP2004299774A - Drinking water dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drinking water dispenser which cleans, with a simple structure, unwanted bacteria having a possibility of going inside tube, without providing any special parts, when changing a vessel enclosing drinking water, and which does not waste pay drinking water by admitting cleaned drinking water into a hot-water tank without discharging. <P>SOLUTION: A vessel 1 is provided comprising a water faucet cock 2 in which drinking water is enclosed. Tube 5 is provided whose one end has a water joint 3 that is connected to the water faucet cock 2 and whose other end is connected to a hot-water electromagnetic valve 4. When changing the vessel 1, the water faucet cock 2 and the hot-water electromagnetic valve 4 are closed, and then the water joint 3 is removed from the water faucet cock 2, after which the container is replaced with a new vessel 1 to whose water faucet cock 2 the water joint 3 is newly connected, and thereafter, the hot-water electromagnetic valve 4 is left open for a given period of time so that the second drinking water that has come in contact with the air in the tube is admitted into a hot-water tank 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a drinking water dispenser using drinking water such as natural water vacuum-packed in a bag-in-box type container or the like, and more particularly, to a drinking water dispenser capable of washing various bacteria in piping in the drinking water dispenser. About.
[0002]
[Prior art]
Conventionally, a drinking water dispenser using mineral water such as natural water as drinking water has no disinfecting action, the mineral water takes in various bacteria in the air when it comes into contact with the air, and the longer the stagnation time, the more particularly the piping in the drinking water dispenser Drinking water that has stagnated in the area may have bacterial growth.
[0003]
Therefore, a heater for sterilization is provided in a piping system connected to the hot water tank and the cold water tank, and the heat of the heater is used to sterilize various bacteria in drinking water stagnated in the piping system, or hot water in the hot water tank is used. There is a system in which a circulation pump is provided in a piping system and forcedly circulated through a cold water tank, and sterilization of various bacteria in the cold water tank is performed by the heat of the hot water. (For example, Patent Document 1)
[0004]
[Patent Document 1]
JP-A-6-48488 (page 6, FIG. 1 and FIG. 2)
[0005]
[Problems to be solved by the invention]
However, such a drinking water dispenser, in which the former uses a sterilizing heater, has a problem that the number of parts is increased and the cost is high, and the latter is a method in which hot water in a hot water tank is forcibly circulated to a cold water tank. In such a case, it is necessary to return to cold water after hot water, which requires energy loss and time, and has a problem that the structure becomes complicated.
[0006]
The present invention has been made by paying attention to such a point, and when replacing a container in which drinking water is sealed, germs which may enter the piping are washed with a simple configuration without providing special parts. In addition, an object of the present invention is to provide a drinking water dispenser that does not waste paid drinking water by putting washed drinking water into a hot water tank without draining the same.
[0007]
[Means for Solving the Problems]
The drinking water dispenser according to claim 1 has a container in which drinking water is sealed and has a faucet cock, and a water joint having one end connected to the faucet cock and the other end connected to the input side of the hot water solenoid valve. And a water supply pipe connected to the output side of the hot water electromagnetic valve and supplying water to a hot water tank having a heater. When the container is replaced, the faucet cock and the hot water electromagnetic valve are closed. Remove the water joint from the faucet cock, replace it with a new container, connect the water joint to the faucet cock of the new container again, and then open the hot water solenoid valve for a certain period of time and drink the beverage that has touched the air in the piping. Water is introduced into the hot water tank through the water supply pipe.
[0008]
Then, in this configuration, when replacing with a new container, the faucet cock and the hot water solenoid valve are closed, then the water joint is removed from the faucet cock, replaced with a new container, and the water of the piping is again connected to the faucet cock of the new container. The joint was connected, and then the hot water solenoid valve was opened for a certain period of time to introduce the drinking water that touched the air in the pipe into the hot water tank, so that the drinking water that touched the air in the pipe was introduced into the hot water tank. In addition to being used as drinking water without waste, it is sterilized by the heat of the hot water in the hot water tank and is safe.
[0009]
The drinking water dispenser according to claim 2 is provided with the rinsing button according to claim 1, and by operating the rinsing button, the hot water electromagnetic valve is opened for a certain period of time, and the drinking water that has come into contact with the air in the pipe passes through the hot water supply pipe. It is designed to be introduced into the tank.
[0010]
By operating the rinse button in this configuration, the solenoid valve is opened only for a certain period of time according to the amount of drinking water stored in the pipe and touching the air, so that excess drinking water is not discharged. Further, the drinking water that has come into contact with the discharged air is introduced into the hot water tank regardless of the upper limit water level of the hot water tank, and is used without waste as drinking water.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of a drinking water dispenser of the present invention will be described with reference to the drawings.
[0012]
【Example】
As shown in FIG. 1, a bag-in-box type container 1 in which a mineral water such as natural water is sealed is provided at an upper part, and a faucet cock 2 is attached to the container 1. Further, a pipe 5 is provided, which has a water joint 3 having one end connected to the faucet cock 2 and has the other end connected to the input side of the hot water electromagnetic valve 4.
[0013]
A water supply pipe 6 is connected to the output side of the hot water electromagnetic valve 4 and faces a hot water tank 7. The hot water tank 7 is provided below the container 1 and is configured to have a sufficient height above the upper limit water level. The container 1 has a heater 8 at the lower part, a water level sensor 9 at the upper part to prevent drinking water from entering the hot water tank 7 above the upper limit water level, a lid 10 for preventing invasion of foreign matter, and a tap at a position slightly lower than the full water level. A hot water pipe 12 having a valve 11 is provided.
[0014]
A cooling tank 13 is provided below the hot water tank 7. Further, a cooling pipe 14 that acts as a condenser of a refrigeration cycle (not shown) and cools the water in the cooling tank 13 is spirally disposed in the cold water tank 13. Further, a cold water pipe 16 having a cold water solenoid valve 15 branched from the pipe 5 is provided. The chilled water pipe 16 is provided along the inner wall of the chilled water tank 13 so as to partially pass through the chilled water tank 13. Is to be extracted.
[0015]
An operation unit 18 is provided with a hot water extraction button 20 for extracting hot water in the hot water tank 7 and a cold water extraction button 21 for extracting cold water in the cold water pipe 16. Reference numeral 19 denotes a rinsing button. The rinsing button 19 is used to open the hot water electromagnetic valve 4 for a certain time when the container 1 is replaced. Is provided.
[0016]
Next, the operation of the present embodiment will be described.
[0017]
First, the operation of supplying drinking water to the hot water tank 7 at the first time of installation will be described. As shown in FIG. 1, the faucet cock 2 of the container 1 is opened by hand from the state where the piping is completed. At this time, since the water level sensor 9 on the hot water tank 7 has detected a drought condition, the hot water electromagnetic valve 4 is opened and the drinking water is supplied into the hot water tank 7. Further, the cold water solenoid valve 15 is closed, and no water is supplied to the cold water solenoid valve 15 side. The water level on the hot water tank 7 side is limited by the water level sensor 9 so that drinking water is not supplied above the upper limit water level. The supply of cooling water on the side of the cooling tank 13 is performed with a bucket or the like while visually checking the water level from the upper opening of the cooling tank 13.
[0018]
Next, the operation of extracting hot water in hot water tank 7 will be described. Drinking water supplied into the hot water tank 7 is heated by the heater 8 and boiled to an appropriate temperature. When the hot water extraction button 20 is operated, the hot water outlet valve 11 is opened and the hot water is extracted through the hot water pipe 12.
[0019]
Next, the operation of extracting cold water will be described. The water in the cooling tank 13 is cooled by the operation of a refrigeration cycle (not shown) in advance. When the chilled water extraction button 21 is operated in this state, the chilled water solenoid valve 15 is opened and the chilled water valve 17 is opened, whereby the drinking water in the container 1 flows through the chilled water pipe 16 and flows through the cooling tank 13. It is instantaneously cooled by heat exchange with the cooling water inside and is extracted as cold water.
[0020]
Next, an exchange operation when the drinking water in the container 1 runs out and the container 1 is replaced with a new container will be described. First, when replacing a new container, the power switch (not shown) is turned off, and the hot water electromagnetic valve 4 and the cold water electromagnetic valve 15 are each closed. After the faucet cock 2 is manually closed, the water joint 3 is removed from the faucet cock 2 and replaced with a new container 1. The water joint 3 is connected to the faucet cock 2 of the new container 1 again. At this time, various bacteria in the air enter the pipe 5 from the water joint 3, but since the hot water solenoid valve 4 and the cold water solenoid valve 15 are closed, various bacteria enter the pipes after the hot water solenoid valve 4 and the cold water solenoid valve 15. Is prevented. After that, the faucet cock 2 is manually opened and the rinse button 19 is operated to forcibly open the hot water electromagnetic valve 4 for a certain period of time according to the amount stored in the pipe 5. Drinking water that has come into contact with the air in the pipe 5 is introduced into the hot water tank 7 exceeding the predetermined water level because the hot water tank 7 is formed at a height equal to or higher than a predetermined water level.
[0021]
The drinking water that has come into contact with the air in the pipe 5 introduced into the hot water tank 7 is heat-sterilized by heating the heater 8 in the hot water tank 7 and is used without waste as safe drinking water. On the other hand, clean drinking water is introduced into the pipe 5 for cleaning, and thereafter, the inside of the pipe is maintained in a sealed state, thereby preventing entry of various bacteria in the air.
[0022]
In the present embodiment, the case where the container 1 is disposed above is described, but the present invention is also applicable to a case where the container 1 is disposed below and pumped up by a pump.
[0023]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the drinking water dispenser of Claim 1, when replacing | exchanging a bag-in-box type container, while washing | cleaning the germs which may enter a piping with a simple structure without providing a special part, the wash | cleaned drink Water can be provided in a hot water tank without draining, and a drinking water dispenser that does not waste paid drinking water can be provided.
[0024]
According to the drinking water dispenser of the second aspect, by operating the rinsing button, the solenoid valve is opened only for a time corresponding to the amount of drinking water stored in the pipe and touching the air, and excess drinking water is discharged. Never do. Further, the drinking water that has come into contact with the discharged air is introduced into the hot water tank regardless of the upper limit water level of the hot water tank, and is used without waste as drinking water.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a configuration of a drinking water dispenser according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container containing drinking water 2 Faucet cock 3 Water joint 4 Hot water solenoid valve 5 Pipe 6 Water supply pipe 7 Hot water tank 8 Heater 9 Water level sensor 11 Hot water supply valve 12 Hot water pipe 13 Cooling tank 14 Cooling pipe 15 Cold water solenoid valve 16 Cold water pipe 17 Chilled water valve 18 Operation section 19 Rinse button 20 Hot water extraction button 21 Cold water extraction button

Claims (2)

A container having a faucet cock in which drinking water is sealed, a pipe having a water joint having one end connected to the faucet cock, and the other end connected to the input side of the hot water solenoid valve; A water supply pipe connected to the output side and supplying water to a hot water tank having a heater, when the container is replaced, the faucet cock and the hot water solenoid valve are closed, and then, a water joint of the piping is removed from the faucet cock, Replace the container with a water container and connect the water joint to the faucet cock of the new container again.After that, open the hot water solenoid valve for a certain period of time and let the drinking water that has touched the air in the pipe pass through the water supply pipe into the hot water tank. A drinking water dispenser characterized by being introduced into a dispenser. A rinsing button is provided, and by operating the rinsing button, the hot water electromagnetic valve is opened for a certain period of time, so that drinking water that has come into contact with air in the pipe is introduced into the hot water tank through the water supply pipe. Item 4. A drinking water dispenser according to Item 1.

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