JP3264714B2 - Bubble generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is used for, for example, dissolving the air in the atmosphere under pressure into hot water in a bathtub and then sending the hot water again into the bathtub to generate fine bubbles in the bathtub. The present invention relates to a bubble generating device to be used.

[0002]

2. Description of the Related Art Conventionally, in this type of bubble generator, hot water is sucked from a bathtub and air from the atmosphere by a pump, and the air is pressurized and dissolved in the hot water in the pump. And in order to separate the air that was not dissolved in the pump from the hot water,
A dissolution tank is provided between the pump and the bath.
After the undissolved excess air and hot water are separated in the dissolving tank, hot water containing the dissolving air is discharged into the bathtub from a spout provided in the bathtub. Therefore, fine air bubbles are generated in the bathtub, and the hot water becomes milky. On the other hand, surplus air separated in the dissolving tank is discharged outside the apparatus.

[0003]

However, in the above-described bubble generator, only fine bubbles can be generated. Therefore, if you want to take a bath in clear, non-milky water,
The bath is stopped with the bubble device stopped, but if the bath is taken immediately after the stop of the device, the hot water does not immediately become transparent. In order to quickly make the milky water clear, there is a method in which bubbles larger than the fine bubbles are generated in the bathtub, and the fine bubbles are removed by the large bubbles.

[0004] In addition, since the fine bubbles are small, the bather may be dissatisfied because the massage effect is reduced as compared with a bubble generator that generates large bubbles used in a jet bath or the like.

[0005] The above problem can be solved by providing two types of bubble generators, a bubble generator for generating fine bubbles and a bubble generator for generating large bubbles. However, when two bubble generating devices are provided, there is a problem that a huge amount of cost is required and a sufficient space for installing the two devices must be ensured.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a device for generating fine bubbles and a device for generating large bubbles without separately providing them. It is an object of the present invention to provide a bubble generator capable of generating fine bubbles or large bubbles with one device.

[0007]

In order to achieve the above object, according to a first aspect of the present invention, there is provided a liquid storage tank for storing a liquid and having a suction port and a spout, and a liquid storage tank having a liquid inlet through the liquid storage tank. A pump that sucks the liquid in the storage tank, a first gas suction port that is connected to the suction port of the pump, and sucks gas from outside by the suction force of the pump, and a gas and a liquid that are pressurized and dissolved in the pump. After flowing in and separating the undissolved excess gas in the liquid, the liquid from which the excess gas has been removed is
A dissolving tank that discharges the liquid from the spout into the liquid storage tank, a second gas suction port that is provided between an inlet and an outlet of the spout, and communicates outside air and the inside of the spout ;
Open or close the suction port to communicate or block between the outside air and the spout.
Merges with the on-off valve to shut off and the second suction port of the jet port
Liquid that is provided upstream from the position and flows into the spout
Rectification with twisted through-holes that generate eddy currents
The gist consists of a board .

[0008]

[0009]

According to the first aspect of the present invention, when the pump is driven, liquid is supplied from the suction port of the liquid storage tank into the pump,
Gases are respectively sucked from the first gas suction ports. Then, these are pressurized in the pump, and the gas is dissolved in the liquid. Then, the liquid containing the gas pressurized and dissolved in the pump is pumped into the dissolution tank by the pump. In the dissolution tank, the undissolved surplus gas and the liquid containing the dissolved gas are separated. Then, only the liquid containing the dissolved gas flows into the jet port.

At this time, when the on-off valve is closed and the space between the outside air and the inside of the ejection port is in a closed state, the liquid is maintained as it is and discharged from the ejection port into the liquid storage tank. . As a result, fine bubbles are generated in the liquid storage tank.

[0011]

[0012] Open closed is opened, that is, the communicating state between the outside air and the spout, the liquid containing the dissolved gas flows into the spout from the through hole twist shape formed of the rectifying plate At that time, a vortex is generated in the liquid. Then, when the liquid passes through the junction with the second suction port in a vortex state, a strong negative pressure is generated at the junction. In other words, a larger amount of gas from the outside air can be sucked in when the liquid passes through the junction in a vortex state than when passing through the junction in a DC state.

As a result, a large amount of gas is mixed with the liquid, and the liquid is discharged into the liquid storage tank.
Larger bubbles can be generated.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention embodied in a bubble generator for a bath tub will be described below with reference to FIGS.

FIG. 1 is a schematic circuit diagram of a bubble generating apparatus according to the present embodiment. As shown in FIG. 1, hot water W as a liquid is stored in a bathtub 1. A suction port 2 and a jet port 3 are provided on the side wall of the bathtub 1. A pump 5 is connected to the suction port 2 via a suction pipe 4. Further, an air suction port 6 as a first gas suction port for sucking air as a gas is connected to a suction port of the pump 5. Dissolution tank 7 is located downstream of pump 5.
The pump 5 and the dissolving tank 7 are connected by an inflow pipe 8. Further, a discharge pipe 9 communicates between the dissolving tank 7 and the jet port 3 of the bathtub 1. The dissolving tank 7 and the suction pipe 4 are connected by a reduction pipe 10.

A switching cock 11 as an on-off valve is fixedly mounted on an upper portion (apron) of the bathtub 1. The position of the lever 12 of the switching cock 11 can be switched between two positions, a position shown in FIG. 2 and a position shown in FIG. The switching cock 11 and the inside of the jet port 3 are connected by a hose 13.

The switching cock 11 is for communicating or blocking between the outside air and the inside of the ejection port 3. When the lever 12 is at the position shown in FIG. Is kept in a cutoff state. Also, lever 1
When the two positions are at the positions shown in FIG.
Are kept in communication with each other.

As shown in FIG. 2 and FIG.
Is a main body 14, an acceleration nozzle 15 and an air suction nozzle 16
And the like. A first fitting hole 17 is formed at the rear end (left side in the figure) of the main body 14. A net filter 18 is attached to the tip of the main body 14. A communication between the net filter 18 and the first fitting hole 17 is made by a first tapered passage 19 having a larger diameter toward the net filter 18. Further, a second fitting hole 20 communicating with the first fitting hole 17 is formed in an upper portion of the main body 14. That is, the first fitting hole 17, the second fitting hole 20, and the first tapered passage 19 are in a communication relationship.

The acceleration nozzle 15 is fitted in a first fitting hole 17 of the main body 14. This acceleration nozzle 15
At the rear end, a cylindrical spiral rectifying plate 21 is accommodated. In addition, the tip of the acceleration nozzle 15 and the spiral rectifying plate 21 are communicated with each other by a second tapered passage 22 having a larger diameter toward the spiral rectifying plate 21. When the acceleration nozzle 15 is fitted to the main body 14, a gap α is formed between the tip of the acceleration nozzle 15 and the main body 14, and the outer circumferential surface of the acceleration nozzle 15 is
Is formed between them.

As shown in FIGS. 2 to 4, the spiral straightening plate 21 has four twist holes 23 penetrating obliquely with respect to the axial direction thereof. The twist direction of each twist hole 23 is the same.

An air suction nozzle 16 as a second gas suction port is fitted in the second fitting hole 20 of the main body 14. In this state, the through hole 2 of the air suction nozzle 16
4 and the space portion β are in communication with each other. A hose 13 extending from the switching cock 11 is fitted into the air suction nozzle 16. A ball 25 is housed in the through hole 24.

Next, the operation of the air bubble generator configured as described above will be described. First, a case where fine bubbles are generated (milking of hot water W) will be described. When generating fine bubbles, first, the lever 12 of the switching cock 11
The position is the position in FIG. As a result, the inside of the ejection port 3 and the outside air are shut off. When the pump 5 is driven in this state, the hot water W in the bathtub 1 is drawn by the suction port 2 by the suction force of the pump 5.
From the air suction port 6, air is sucked into the pump 5 via the suction pipe 4, and the air is
Is dissolved under pressure. And hot water W containing dissolved air
Is pumped into the dissolution tank 7 via the inflow pipe 8.

In the dissolving tank 7, the air not pressurized and dissolved by the pump 5 is converted into excess air,
From 0, it is reduced to the suction line 4. The hot water W from which the excess air has been separated flows into the jet port 3 via the discharge pipe 9. That is, it flows into the acceleration nozzle 15 from the twist hole 23 formed in the spiral current plate 21.

At this time, since the hot water W has passed through the twist hole 23, a vortex is generated in the hot water W in the DC state.
Then, the hot water W in which the vortex flow has been generated passes through the second tapered passage 22, so that the flow speed thereof is increased. And
The speeded-up hot water W further flows to the first tapered passage 19 facing the second tapered passage 22. At this time,
Even if the hot water W flows to the through hole 24 side of the air suction nozzle 16, the through hole 24 is closed by the ball 25, so that the hot water W does not flow back to the hose 13 side.

The hot water W flows from the second tapered passage 22 to the first
Flows into the tapered passage 19, the flow speed is reduced. This is because the diameter of the first tapered passage 19 increases toward the downstream side. And the decelerated hot water W
Pass through the net filter 18, cavitation is precipitated in the hot water W, fine bubbles are generated in the bathtub 1, and the hot water W is opalified.

Next, a case where a normal bubble (large bubble) is generated will be described. First, the position of the lever 12 of the switching cock 11 is switched from the position in FIG. 2 to the position in FIG. As a result, the communication between the ejection port 3 and the outside air is maintained. Then, when the pump 5 is driven and the hot water W flows into the jet port 3 from the twist hole 23 of the spiral rectifying plate 21 via the discharge pipe 9, the vortex flows into the hot water W in the same manner as when the fine bubbles are generated. Occurs.

[0027] In state shape vortex occurs in hot water W, when flowing from the second tapered passageway 22 to the first tapered passageway 19 at a high speed, a negative pressure is generated in the space beta, its space beta Is sucked from outside air through the hose 13 and the air suction nozzle 12. Then, the sucked air is drawn into the hot water W from the gap α,
Is discharged from the tapered passage 19 through the net filter 18 into the bathtub 1. As a result, large bubbles are generated in the bathtub 1.

As described above, according to the bubble apparatus of the present embodiment, the air outlet nozzle 16 is provided in the jet port 3 for communicating the inside of the jet port 3 with the outside air, and the lever 12 of the switching cock 11 is operated by operating the lever 12. Since the communication between the jet port 3 and the outside air is made or cut off, it is not necessary to separately provide a bubble generator for generating fine bubbles and a bubble generator for generating large bubbles.

That is, when generating fine bubbles,
By setting the position of the lever 12 of the switching cock 11 to the position shown in FIG. 2 and blocking the communication between the inside of the ejection port 3 and the outside air, the hot water containing only the dissolved air without sucking air into the ejection port 3 W can be discharged into the bathtub 1 to generate fine bubbles.

When it is desired to make the milky water W transparent or to generate large bubbles having a high massage effect, the lever 12 is set to the position shown in FIG. Air is sucked into the hot water 3 and undissolved air is mixed into the hot water W. Then, large bubbles can be generated by discharging the hot water W into the bathtub 1.

As described above, in this embodiment, two types of bubbles, fine bubbles and large bubbles, can be generated by one bubble generator. As a result, the device can be installed in a place where one device is installed, so that it is not necessary to secure a large space. In addition, since it can be installed at substantially the same cost as the cost of one device, it is very economical.

Further, in this embodiment, a spiral rectifying plate 21 is provided at the inlet of the jet port 3 to generate a vortex in the hot water W,
When air is sucked into the ejection port 3 from outside air, a stronger negative pressure can be generated in the ejection port 3. As a result, a large amount of air from the outside air can be sucked into the ejection port 3, so that a large amount of air can be mixed with the hot water W, and larger bubbles can be reliably generated.

It should be noted that the present invention is not limited to the above-described embodiment, and may be configured as follows without departing from the spirit of the invention. (1) In the above-described embodiment, the liquid storage tank is embodied in the bathtub 1, but this is embodied in a water tank or the like, or water or a liquid containing various components is used instead of the hot water W as the liquid. The present invention may be embodied in a bubble apparatus that performs the following operations. Further, the gas sucked from the first gas suction port may be embodied by oxygen, carbon dioxide, or the like.

(2) In the above embodiment, the suction port 2 and the ejection port 3 are provided on the side wall of the bathtub 1, but the suction port 2 is provided on the bottom surface of the bathtub 1 or on the wall face opposite to the ejection port 3. Or you may.

[0035]

As described in detail above, according to the present invention,
One device can generate either a fine bubble or a large bubble without separately providing a device for generating the fine bubble and a device for generating the large bubble. Therefore, it is possible to install the apparatus even in a small space, and it is possible to provide an excellent effect that the cost is inexpensive and very economical.

[Brief description of the drawings]

FIG. 1 is a schematic circuit diagram of a bubble generation device embodying the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 3 when fine bubbles are generated.

FIG. 3 is a rear view of the ejection port.

FIG. 4 is a sectional view taken along line AA of FIG. 3 when a normal bubble (large bubble) is generated.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Bath as a liquid storage tank, 2 ... Suction port, 3 ... Spout port, 5 ... Pump, 6 ... Air suction port as 1st gas suction port, 7 ... Dissolution tank, 11 ... Switching cock as open / close valve .., 14 a main body forming a jet port, 15. An accelerating nozzle forming a jet port, 16 a air suction nozzle forming a second gas suction port and a jet port, 21 a spiral flow straightening plate as a straightening plate, 23. Twist holes as twisted through holes

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61H 23/00

Claims (1)

(57) [Claims] 1. A liquid storage tank for storing a liquid and having a suction port and a spout, a pump for sucking liquid in the liquid storage tank from a suction port of the liquid storage tank, and a pump connected to a suction port of the pump. A first gas suction port for sucking a gas from the outside by a suction force of a pump, and a gas and a liquid which have been pressurized and dissolved in the pump,
After separating the undissolved excess gas in the liquid, the liquid in which the excess gas has been removed is discharged from the ejection port into the liquid storage tank, and the dissolution tank is disposed between the inlet and the outlet of the ejection port. A second gas suction port that communicates the outside air with the inside of the ejection port, and opens and closes the second suction port to allow communication between the outside air and the ejection port.
An on-off valve that communicates or shuts off, and an upstream side of a position where the valve merges with the second suction port of the ejection port
To generate a vortex in the liquid flowing into the spout
An air bubble generator comprising a straightening plate having a twisted through hole formed therein .