JPS5823545B2 - drinking water production equipment - Google Patents

Description

[Detailed description of the invention] The present invention automatically cools drinking water such as juice.

The present invention relates to a drinking water production device that supplies drinking water by opening a valve mechanism.

Conventional drinking water production equipment of this type simply cools and supplies drinking water during its cooling operation, so the drinking water poured into the pot becomes lukewarm in a relatively short period of time. It has the disadvantage that it spoils the taste of drinking water.

The present invention was invented in view of the drawbacks of the conventional ones, and provides drinking water that freezes drinking water that is in contact with the wall surface of a heat exchange tank and supplies this drinking water to a cup or the like together with the cooled drinking water. The aim is to provide manufacturing equipment.

Hereinafter, a practical example of the present invention will be described in detail with reference to the accompanying drawings.

In FIGS. 1 and 2, a main body 1 is divided into two rooms 3 and 4 by a partition plate 2.

One of the chambers 3 is provided with a preliminary tank 5 that opens on the top surface of the main body 1 and a heat exchange tank 6 that opens on the front surface. It is connected to the.

In addition, the other room 4 has a compressor 8 and a condenser 9.
, a drive motor 10, a cooling fan 10' attached to a motor shaft 11 of the motor 10, and a power transmission mechanism 12 for transmitting the driving force of the motor 10 for stirring, which will be described later.

13 is a check valve provided in the connecting pipe I,
Drinking water entering the heat exchange tank 6 from the preliminary tank 5 is stored in the preliminary tank 5.
This is provided to prevent backflow.

Reference numeral 14 denotes an evaporator wound around the outer circumferential surface of the heat exchange tank 6, forming a cooling cycle together with the compressor 8, condenser 9, etc., cooling the drinking water in the heat exchange tank 6, and cooling the drinking water in the heat exchange tank 6. It acts to freeze drinking water near the inner wall surface.

Reference numeral 15 denotes a heater which is also wound around the outer circumferential surface of the heat exchange tank 6, and is operated as an alternative to the cooling cycle, and is designed to heat the drinking water in the heat exchange tank 6 when activated. ing.

The selection of the heater 15 and the cooling cycle is made using a selection knob 16 provided on the front surface of the main body 1.

17 is a heat insulating layer surrounding the outer peripheral surface of the heat exchange tank 6.

18 is a lid member fixed to the front surface of the main body 1 with a screw 19 to close the opening 6' in the front surface of the heat exchange tank 60 main body 1; Part 19
has a valve port 20 whose one end directly communicates with the heat exchange tank 6, a vertically elongated discharge port 21 which communicates with the other end of the valve port 20 through a side surface and whose lower end is open, and a discharge port for opening and closing the valve port 20. Exit 2
1, a valve body 22 that is movable up and down, and this valve body 2.
2 through the insertion hole 23 provided in the lid member 18 and lock one end with the 2
4, a lever 26 which is pivoted 25 to the lid member 1B in the middle;
A nozzle 27 is attached to the lower end opening of the discharge port 21.

Therefore. When the lever 26 is operated in the directions of arrows A and B, the valve body 22 opens and closes the valve port 20.

Reference numeral 28 is the above-mentioned rotary blade body, which crosses the inside of the heat exchange tank 6 and has one end pivotally supported by the lid member 1B and the other end attached to a rotating shaft 29 connected to the power transmission mechanism 12. .

As clearly shown in FIGS. 3 and 4, this rotary blade body 28 consists of two support plates 30. ice-shaving blades 32 and stirring blades 33 connected between each other end of the support plates 30 and 31.

In this case, the part 30 of the support plate (facing the lid member 18) that is attached to the stirring blade 33
' is bent in a direction opposite to the rotation direction (arrow C) of the rotary blade body 28, and the stirring blade 33 is bent on the side (long side) located in front of the rotation direction (arrow C) of the rotary blade body 28. )33
The support plates 30 and 31 are attached to each support plate 30 and 31 so that the rotation radius around the rotation axis 29 is longer than the side (long side) 33b located behind a by a distance of 11 degrees.

Therefore, in conjunction with the deformation of the portion 30', the stirring blade 33 has its end on the lid member 18 side located a distance 12 further back than the other end in the direction opposite to the rotational direction (arrow C). Both are attached to both support plates 30 and 31 with the rotation radius of side 33a being larger by dimension 11 than side 33b.

As a result, the drinking water is stirred in the radial direction of the heat exchange tank 60, in the circumferential direction, and also in the axial direction by the stirring blade 330 rotation, and the ice-shaving blade 32 scrapes the drinking water from the inner surface of the heat exchange tank 6. The ice cubes are made to flow toward the valve port 20.

Next is the power transmission mechanism 12, which includes a drive pulley 34 attached to the motor shaft 11, the rotational force of this pulley 34 is transmitted via a belt 35, and this rotational force is transmitted to the rotational shaft 29. It is roughly constituted by a driven pulley 36 that transmits the signal.

In the present invention, the driven pulley 36 and the rotating shaft 29 are
The connection part has the following structure.

A specific example is shown in FIGS. 5 and 6, in which the end of the rotating shaft 29 is divided into two parts at its tip end surface as shown in the explanatory diagram of FIG. The rotary shaft 29 has a wavy contact surface 29a inclined in the direction, and a collar 29b is provided at this end of the rotary shaft 29, and two bolts 37 are attached to this in the axial direction.

On the other hand, the driven pulley 36 has a contact surface 29a on the side surface opposite to the contact surface 29a at its center.
A wavy abutment surface, which is divided into two parts and each face is inclined in opposite directions (opposite inclination to the abutment surface 29a), 3
6a, and an operating protrusion 36b is formed protrudingly on the surface opposite to this surface, and as shown in FIG. )37.
37 and is supported and substantially connected to the rotating shaft 29.

In this case, the driven pulley 36 is always urged in the direction of the rotating shaft 29 by the spring 39 between the nut 38 screwed into the bolt 37 and the driven pulley 36, and the abutting surface 36a is tightly pressed against the abutting surface 29a. It is designed to be brought into contact with the

Further, a rib 36d is provided on the side of the driven pulley 36 corresponding to the rotating shaft 29, and is inserted into the end portion having the collar 29b of the rotating shaft 29.

Now, due to the relationship between the contact surfaces 29a and 36a explained in (), the driven pulley 36 is inserted into the bolt 37, and the rotating shaft 21 is inserted into the driven pulley 36.
The structure that can be viewed from or near the vehicle contact surface 29a is such that when the rotary shaft 29 is rotated in accordance with the rotation of the driven pulley 36, for example, if some kind of overload is applied to the rotary blade body 28 and its rotation is hindered, the above-mentioned two-vehicle contact surface 29a.

The mechanism for moving the driven pulley 36 away from the rotating shaft 29 against the spring blades by the action of 36a constitutes a mechanism for reducing overload applied to the rotating blade body.

Similarly, when the driven pulley 36 is released from the rotating shaft in this way, the operating protrusion 36b operates the safety switch 40 disposed correspondingly, and the drive motor 10 is fixed to connect the power supply circuit of the compressor 8. It is designed to be turned off.

Of course, if the failure of the rotating blade body 28 is resolved,
Since both abutment surfaces 29a and 36a can slide freely, the driven pulley 36 moves its operating protrusion 36 due to the return force of the spring 39.
b is moved along the bolt 37 toward the rotating shaft 29 in order to separate it from the safety switch 40, and the rotational force of the drive ♀-10 is transmitted to the rotating shaft 29 again.

As will be described later, 41 is a lid plate for opening and closing the top opening of the preliminary tank 5, and 42 is a pedestal.

The present invention is constructed in a diagonal manner, and its operation will be explained below.

First, the case of cooling drinking water will be described. In this case, the selection knob 16 can be set to cooling P.

That is, when the selection knob 16 is set to the cooling position PK stage, the compressor 8 and the drive motor 10 are accordingly driven, and on the other hand, the drinking water in the heat exchange tank 6 is cooled, and the cooling As the temperature progresses, the area near the inner surface of the heat exchange tank 6 becomes frozen and becomes a layer of ice. Drive pulley 34, belt 35,
It is transmitted to the rotating shaft 29 via the driven pulley 36 and bolt 37, and the rotating blade body 28 scrapes the ice layer with its ice cutting blades 32, and cools the drinking water with its stirring blades 33. while rotating.

In this state, when the lever 26 is pushed down in the direction of the arrow from the position indicated by the imaginary line, the valve body 22 moves within the discharge port 21 to the position indicated by the solid line, thereby opening the valve port 21. Then, the cooled drinking water in the heat exchange tank 6 is poured through the nozzle 27 into the pot K placed on the receiving plate 1', with the shaved ice cubes mixed therein.

When an appropriate amount of drinking water is poured into the pot K, the lever 26
By returning the valve in the direction of arrow B and closing the valve port 21 again using the valve body 22, the discharging of drinking water is completed.

When the drinking water is discharged in this manner, uncooled drinking water corresponding to the discharged amount is supplied to the heat exchange tank 6 via the preliminary tank 5, the reverse valve 13, and the connecting pipe 7.

Since the connection pipe 7 has a relatively small diameter, this supply is carried out gradually, and there is no concern that the drinking water, which has already been cooled in the heat exchange tank 6, will be rapidly heated.

Further, during normal operation, if the rotation of the rotary blade body 28 is blocked due to abnormal icing caused by overcooling, the rotation of the rotating shaft 29 is blocked, so that the rotation of the driven pulley 36 continues, The contact surface 36 of this pulley 36
The correspondence relationship between A and the contact surface 29a of the rotating shaft 290 is broken, and the highly sloped part of the contact surface 36a becomes the contact portion 29.
As a result, the driven pulley 36
is moved away from the rotating shaft against the spring 39, and operates the safety switch 40 using the actuating protrusion 36b, and the compressor 8 is firmly disconnected from the drive motor 10.

When such an abnormality is resolved, the rotating shaft 29 is able to rotate freely, and the driven pulley 36 rotates as the contact surfaces 29a and 36a of the two vehicles slide due to the return force of the spring J. It is returned to the direction closer to the shaft 29, that is, returned to its original normal operating state, and the driving force of the drive motor 10 is transmitted to the rotary blade body 28 again.

Of course, at this time K's compressor 8 has also been restored.

The above is the case of the cooling operation. Next, the heating operation will be described. In this case, the selection knob 16 can be set to heating H.

That is, when heating is set to H, the heater 15 is energized, generates heat, and heats the drinking water in the heat exchange tank 6.

However, at this time, since the rotating blade body 28 is being rotated,
The drinking water in the heat exchange tank 6 is stirred and heated evenly over the entire area.

Even in this heating operation, drinking water can be taken out by operating the lever 26.

As described above, the present invention fixes a pair of front and rear support plates eccentrically to the rotating shaft, and bends the shorter end of the front supporting plate in a direction opposite to the rotational direction of the rotating shaft. A plate-shaped stirring blade is installed at an angle between its tip and the short end of the rear support plate, and the ice on the inner wall of the heat exchange tank is attached to the long ends of the front and rear support plates. Since the rotary blade body is constructed by fixing the ice-shaving blades that scrape off the ice layer, the ice-shaving blades scrape off the ice layer on the inner surface of the heat exchange tank, and the rotation of the stirring blades removes the drinking water in the heat exchange layer. can be stirred uniformly in the radial direction, circumferential direction, and axial direction of the heat exchange tank, and therefore, even with one ice cutting blade and one stirring blade, sufficient ice cutting and stirring effects can be achieved in a well-balanced manner. In addition to this, it also has the remarkable effect of reducing costs by reducing the number of parts and material costs.

[Brief explanation of drawings]

1 and 2 are a perspective view and a side sectional view of a device according to the present invention, 3 and 4 are a perspective view and a front view showing the configuration of a rotating blade body, and 5 and 6 are a perspective view and a side sectional view of a device according to the present invention. Sectional views of the structure of the connecting part of the driven pulley in different operating states, No. 7
The figure is an explanatory diagram of the abutment surface of the rotating shaft (driven pulley), and FIG. 8 is a view taken from line I--■ in FIG. 5. 6: heat exchange tank, 14... evaporator, 19: valve part,
28 double rotating blade body.

Claims (1)

[Claims] 1. A heat exchange tank equipped with a cooling means and a valve mechanism for discharging drinking water, and a heat exchange tank rotatably provided within the heat exchange tank, which scrapes off an ice layer formed on the inner wall of the heat exchange tank and agitates the drinking water when rotated. In a drinking water production device consisting of four rotary blades with functions, a pair of front and rear support plates are eccentrically fixed to the rotating shaft, and the short end of the front support plate is A plate-shaped stirring blade is bent in the direction opposite to the rotational direction of the rotating shaft, and a plate-shaped stirring blade is installed at an angle between the tip thereof and the short end of the rear support plate, and the front and rear support plates A drinking water producing device characterized in that the rotary blade body is constructed by fixing an ice-shaving blade for scraping an ice layer on an inner wall of a heat exchange tank to a long end of the rotary blade body.