JP3685540B2 - Soft drink dispenser - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soft drink dispenser, and more particularly, to a soft drink dispenser that automates the supply of water to a cooling water tank for cooling drinking water while suppressing fluctuations in the sales volume of drinking water and solving hygiene problems. .
[0002]
[Prior art]
As a conventional soft drink dispenser (hereinafter referred to as “dispenser”), for example, there is one disclosed in Japanese Patent Laid-Open No. Hei 3-1442697. This dispenser has a cooling coil with a water supply pipe coiled inside a drinking water cooling water tank (hereinafter referred to as “water tank”), and uses the cold water supplied through the cooling coil as dilution water for beverages such as syrup. doing. The supply of water to the water tank is performed not only at the time of installing the dispenser but also due to natural evaporation, so that a hose or the like is used after the installation. In particular, during the dry season, stable cold water is supplied by replenishing once or twice a month.
[0003]
[Problems to be solved by the invention]
However, according to the conventional dispenser, the operation is troublesome because water is supplied to the water tank by a hose or the like.
Accordingly, an object of the present invention is to provide a dispenser capable of replenishing water to a water tank without complicated operations.
[0004]
[Means for Solving the Problems]
The present invention, in order to achieve the above object, the connected to the water supply side pipe water from the water cooled through a cooling water bath, in soft drinks dispenser supplies it as drinking water, the tube A branch pipe branched from the road , a water tank water supply electromagnetic valve for supplying cooling water from the branch pipe to the cooling water tank by water pressure from the water supply, and the pipe after branching, provided from the water supply A water pump for supplying water via the cooling water tank; and a control means for controlling an operation of the water tank water supply electromagnetic valve in accordance with a water level of the cooling water tank , wherein the branch pipe is connected to the water tank water supply electromagnetic valve from the water tank water supply electromagnetic valve. There is provided a soft drink dispenser having a check valve for blocking air sucked into the pipe of drinking water .
[0005]
In this dispenser, a check valve can be provided in the branch pipe. According to this structure, even if the water pump inlet side becomes a negative pressure, it is possible to prevent the air from being sucked into the drinking water from the aquarium water supply valve to become unsanitary and to prevent the flow rate from fluctuating.
Further, when the water pump is operated, the operation of the water tank water supply valve can be prohibited. According to this configuration, it is possible to avoid that the water pressure cannot be secured on the water pump inlet side, and it is possible to sell at a constant flow rate.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an embodiment of a dispenser according to the present invention. A pipe 30 is connected to a city water 1 via a water filter 2, and water is supplied to the dispenser 10. The dispenser 10 includes a water supply inlet solenoid valve 11 provided in the pipe line 30, a branch pipe line 31 branched from the pipe line 30, a water pump 13 (motor not shown) connected to the pipe line 30, It has a pipe line 32 connected to the water pump 13, a cooling coil 17 connected to the pipe line 32, and a pipe line 33 connected to the cooling coil 17. The dispenser 10 further has a water tank 16, and a cooling coil 17 is disposed inside the water tank 16. The branch pipe 31 is provided with a check valve 12 in the middle, and has a water tank water supply electromagnetic valve 14 at its end. The water tank 16 is filled with cooling water so as to immerse the cooling coil 17 (hereinafter referred to as “cooling water”), and has a stirring motor 15 having a fan 15 a for stirring the cooling water. And a water level sensor 18 for detecting the minimum water level of the cooling water. The pipe line 33 connected to the cooling coil 17 is connected to a sales electromagnetic valve 19 located outside the dispenser 10, and the sales electromagnetic valve 19 is placed on the table 21 when a sales switch (not shown) is turned on. The cup 22 is configured to supply cold water.
[0007]
FIG. 2 shows a control system of the dispenser 10, a power switch 40 that supplies power to the dispenser 10, a sales switch 20 that supplies cold water to the sales solenoid valve 19, and an ON signal when the water level in the water tank 16 drops to the minimum water level. , The power switch 40, the sales switch 20, and the signal of the water level sensor 18 are input, and the water supply inlet solenoid valve 11, the water tank water supply solenoid valve 14, the sales solenoid valve 19, the water pump 13, and A control unit 41 for controlling the solder motor 15 is provided.
[0008]
The operation will be described below based on the flowchart of FIG.
When the power switch 40 is turned on, the control unit 41 operates the water supply inlet electromagnetic valve 11 to make the dispenser 10 operable. The water level sensor 18 constantly checks the water level of the water tank 16, and when the water level drops to the minimum water level, the water level sensor 18 is turned on and a water level lowering signal is output to the control unit 41. At this time, the control unit 41 checks the sales switch 20, and when cold water is not supplied from the sales electromagnetic valve 19, operates the water tank water supply electromagnetic valve 14 to supply cooling water from the branch pipe 31 to the water tank 16. . Thus, when the water level of the water tank 16 rises to a predetermined water level, the operation of the water tank water supply electromagnetic valve 14 is stopped. On the other hand, when the control unit 41 checks the sale switch 20 and detects that it is on sale, the operation of the water tank water supply electromagnetic valve 14 is prohibited regardless of the drop in water level, the sale state is continued, and the sale is finished. This is detected and the operation of the water tank water supply electromagnetic valve 14 is started.
[0009]
When the sales signal is output from the sales switch 20 in the sales state of the dispenser, the control unit 41 drives the water pump 13 and operates the sales electromagnetic valve 19 to supply a fixed amount of cold water to the cup 22. At this time, since the check valve 12 is provided in the pipe line 31, air is not sucked from the tank water supply electromagnetic valve 14 even when the tap water pressure is low. Therefore, it is possible to prevent problems of unsanitary due to fluctuations in flow rate and air pollution. In addition, when the water pump 13 is operated, the water tank water supply electromagnetic valve 14 is not operated, so that the water pressure can be ensured and the fixed quantity sales can be performed at any time.
[0010]
In the above embodiment, the sales switch 20 and the sales electromagnetic valve 19 are provided. However, the sales switch 20 and the sales solenoid valve 19 are omitted, and a lever that is pressed by the cup 22 is provided in the sales port. You may make it supply cold water by opening.
[0011]
【The invention's effect】
As described above, according to the dispenser of the present invention, since the cooling water of the drinking water cooling water tank is supplied by the branch pipe branched from the drinking water pipe, it is troublesome to supply water using a hose or the like. Work can be saved. Further, since the check valve is provided in the branch line, air is not sucked from the branch line side even when the pump inlet side becomes negative pressure, and fluctuations in the flow rate of drinking water and air contamination can be prevented.
[0012]
Furthermore, since the cooling water is not supplied when the drinking water supply water pump is operating, a fixed amount of drinking water can be supplied at any time.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an embodiment of a dispenser of the present invention.
FIG. 2 is a block diagram showing an embodiment of the dispenser of the present invention.
FIG. 3 is a flowchart showing an operation in the embodiment of the dispenser of the present invention.
[Explanation of symbols]
1 City Water 2 Water Filter 10 Dispenser 11 Water Supply Solenoid Valve 12 Check Valve 13 Water Pump 14 Water Tank Water Solenoid Valve 15 Stirring Motor 16 Water Tank 17 Cooling Coil 18 Water Level Sensor 19 Sales Electromagnetic Valve 20 Sales Switch 21 Table 22 Cup 30 , 32, 33 Pipe 31 Branch pipe 40 Power switch 41 Control unit

Claims (2)

In a soft drink dispenser for supplying water as drinking water , cooling the water from the water supply through a cooling water tank through a pipe connected to the water supply side ,
A branch pipe branched from the pipe;
A water tank water supply solenoid valve for supplying cooling water from the branch pipe to the cooling water tank by water pressure from the water supply;
A water pump that is provided in the pipeline after branching and supplies water from the water supply via the cooling water tank;
Control means for controlling the operation of the water tank water supply electromagnetic valve according to the water level of the cooling water tank ,
The said branch pipe has a non-return valve which blocks | prevents the air suck | inhaled from the said tank supply electromagnetic valve to the said pipe of the drinking water, The refreshing drink dispenser characterized by the above-mentioned . The control means is configured to prohibit the opening operation of the water tank water supply electromagnetic valve by operating the water pump regardless of a drop in the cooling water level of the cooling water tank when the drinking water sales signal is output. Item 1. A soft drink dispenser according to item 1.

Images