TWI714722B - Microbubble generation device and bath comprising same, and loading solution supply device used therein - Google Patents

Abstract

An object of the invention is to provide a microbubble generation device which offers greater convenience, a bath equipped with this device, and a loading solution supply device used in this device and bath. The microbubble generation device of the invention comprises a mixing section which mixes liquid and air so that the air is dissolved in the liquid, an atomization section which makes microbubbles of the air dissolved into the liquid by the mixing section, and a loading solution supply device which supplies a loading solution to the liquid, either in a channel that passes from the liquid supply path at a position on the upstream side of the atomization section in the flow direction of the liquid through the mixing section to the atomization section, or in the atomization section itself.

Description

Micro-bubble generating device and bath provided with the micro-bubble generating device and additive liquid supply device used in the micro-bubble generating device and the bath

The present invention relates to a fine bubble generating device, a bath provided with the fine bubble generating device, and an additive supply device used in the fine bubble generating device and the bath.

In the past, predecessors have proposed a fine bubble generating device that dissolves air in a liquid and then makes fine bubbles (for example, Patent Document 1).

The fine bubble generating device of Patent Document 1 mixes liquid and air in a water tank, dissolves the air in the liquid, and then takes out the liquid to the outside of the water tank and depressurizes, thereby generating fine bubbles. [Related Technical Documents] [Patent Documents]

Patent Literature: Japanese Patent Application Publication No. 2010-75919

[Problem to be solved by the present invention] However, it is now required to improve the convenience of users who use the fine bubble generating device. In the structure as in Patent Document 1, although the bubbles can be made finer, the contents such as the finer of other substances are not assumed. It can be said that there is still room for improvement from the viewpoint of user convenience and the like.

Therefore, the object of the present invention is to provide a fine bubble generating device that solves the above-mentioned problems and can improve user convenience, a bath provided with the fine bubble generating device, and an additive used in the fine bubble generating device and the bath Liquid supply device. [Technical means to solve the problem]

In order to achieve the above-mentioned object, the fine bubble generating device of the present invention includes: a mixing section that mixes liquid with air to dissolve the air in the liquid; a miniaturization section that finely bubbles the air dissolved in the liquid in the mixing section; and adding The liquid supply device feeds the liquid from the supply path of the liquid on the upstream side in the flow direction of the liquid from the finer section through the mixing section, or supplies the additive liquid to the liquid at the finer section. [Effects of the invention]

According to the fine bubble generating device of the present invention, the bath provided with the fine bubble generating device, and the additive liquid supply device used in the fine bubble generating device and the bath, the convenience of the user can be improved.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

(Embodiment) Figures 1 and 2 are diagrams showing the schematic configuration of the fine bubble generating device 2 of the embodiment.

The microbubble generating device 2 is a device that decompresses a liquid in which air is dissolved to make microbubbles, for example, it is installed in the bath 4 and used. As shown in FIG. 1 or FIG. 2, the fine bubble generating device 2 includes: an additive supply device 6 (FIG. 2), a joint 8, a first nozzle 10, an air supply pipe 12, a circulation pump 14, an air dissolving tank 16, And the second nozzle 18.

The additive liquid supply device 6 is a device for adding an additive liquid (for example, oil) to the liquid sucked from the bath 4. In this embodiment, it also serves as the suction port and the discharge port of the bath 4. It is configured to suck the liquid in the bath 4 from the suction port of the additive liquid supply device 6, and from the upstream side in the flow direction of the liquid, flow through the joint 8, the first nozzle 10, the circulation pump 14, the air dissolving tank 16, the second 2 Nozzle 18, joint part 8, additive liquid supply device 6 (discharge port).

Hereinafter, each configuration of the fine bubble generating device 2 will be described in order.

The joint part 8 is a joint part for connecting a plurality of nozzles, and in this embodiment, the first nozzle 10 and the second nozzle 18 are connected. In the joint portion 8, the liquid sucked from the suction port of the additive liquid supply device 6 is supplied to the first nozzle 10, and the liquid flowing to the second nozzle 18 is supplied to the discharge port of the additive liquid supply device 6. The detailed configuration of the additive liquid supply device 6 and the joint portion 8 will be described later.

The first nozzle 10 is a nozzle connected between the joint portion 8 and the circulation pump 14 and causes the liquid from the joint portion 8 to flow toward the circulation pump 14. On the way of the first nozzle 10, an air supply pipe 12 is connected. The air supply pipe 12 is a pipe that supplies air to the liquid in the first nozzle 10. By providing the air supply pipe 12, air and the liquid in the first nozzle 10 are mixed. The liquid system is supplied to the circulating pump 14 on the downstream side in a state of being mixed with air.

The circulation pump 14 is a pump connected between the first nozzle 10 and the air dissolving tank 16, and generates pressure to circulate the liquid. By installing the circulation pump 14, the flow of the liquid in the entire fine bubble generating device 2 is generated, and the liquid and air sucked from the first nozzle 10 are supplied to the air dissolving tank 16.

The air dissolving tank 16 is a tank for dissolving air in liquid. The air dissolving tank 16 dissolves air (oxygen) in the liquid by applying pressure to the liquid mixed with air.

The second nozzle 18 is a nozzle connected between the air dissolving tank 16 and the joint portion 8. The second nozzle 18 releases the liquid in which the air is dissolved in the air dissolving tank 16 to atmospheric pressure to reduce the pressure, thereby generating fine bubbles. In this way, the second nozzle 18 is made to function as a miniaturization part (first miniaturization part). In addition, as will be described later, the joint portion 8 on the downstream side of the second nozzle 18 also functions as a miniaturization unit for miniaturizing air dissolved in the liquid (second miniaturization unit).

With the above-mentioned configuration, the fine bubble generating device 2 is configured to eject a liquid containing air finely bubbled by the second nozzle 18 and the joint portion 8 toward the bathtub 4.

Next, the configuration of the additive liquid supply device 6 and the joint portion 8 will be described using FIGS. 3 to 8.

As shown in FIG. 3, the additive liquid supply device 6 includes a lid 20 and an additive liquid storage case 22. The cover 20 is attached to the exposed cover of the bath 4. In the cover part 20, as shown in FIG. 6, the suction port 48 and the discharge port 50 are formed. The additive liquid storage case 22 is an additive liquid storage portion for storing additive liquid used for adding the liquid sucked from the suction port 48 of the lid portion 20, and is installed on the inner surface side of the lid portion 20 for use.

The cover 20 includes an outer cover 24 on the outer surface side and an inner cover 26 on the inner surface side. The outer cover 24 is a cover with a spouting port 50 formed at its center. The outer cover 24 has a substantially circular outer shape when viewed along the ejection direction A of the liquid ejected from the ejection port 50. The inner cover 26 is a cover on the inner surface side that is fitted with the outer cover 24. An opening 26a is formed in the center of the inner cover 26. The discharge port 50 of the outer cover 24 and the opening 26a of the inner cover 26 are arranged to face each other.

On the inner surface side of the inner cover 26, as shown in FIGS. 7(b) and 7(c), an inner edge protrusion 26b and an outer edge protrusion 26c are provided. An opening 26a is formed inside the inner edge protrusion 26b. As shown in FIG. 7(c), the inner cover 26 is further provided with protrusions 26d (three locations in this embodiment) for fixing the additive liquid storage case 22 on the inner surface side. The inner cover 26 is further provided with protrusions 26e (two in this embodiment) for fixing the cover support 32 described later.

In this embodiment, the outer cover 24 is made of stainless steel, and the inner cover 26 is resin. At the time of manufacture, the sheet metal of the outer cover 24 is drawn in a state where the inner cover 26 is arranged inside the outer cover 24 to fit each other.

As shown in FIG. 3, the additive liquid storage case 22 includes an outer case 28 and an inner case 30. The outer shell 28 and the inner shell 30 are configured to be attachable to each other. The outer shell 28 and the inner shell 30 are fitted with respective outer edges to be rotatably mounted to each other. By mounting the outer shell 28 and the inner shell 30 to each other, a housing for storing the additive liquid is constructed. Both the outer shell 28 and the inner shell 30 are annular members penetrating through the center in the radial direction, and a storage space for storing the additive liquid is formed in the annular portion.

As shown in FIG. 8(a) and the like, on the outer surface side of the outer shell 28, recesses 28a (three in this embodiment) for fixing the inner cover 26 are provided. The recess 28a is fitted with the protrusion 26d of the inner cover 26 described above.

On the inner surface side portion of the outer shell 28, as shown in FIG. 8(b), a first protrusion 28b and a second protrusion 28c are provided. The first protrusion 28b and the second protrusion 28c can be fitted into the protrusion 30e of the inner shell 30. If the first protrusion 28b is fitted into the protrusion 30e of the inner shell 30, the outer shell 28 and the inner shell 30 are arranged at the first rotation position. On the other hand, when the second protrusion 28c is fitted into the protrusion 30e of the inner shell 30, it is arranged at the second rotation position. With such a configuration, the outer shell 28 and the inner shell 30 are mounted so as to be rotatable between the first rotation position and the second rotation position. In the present embodiment, the first rotation position corresponds to the storage position where the stored additive solution is not supplied to the outside but is stored; the second rotation position corresponds to the supply position where the stored additive solution is supplied to the outside.

As shown in FIG. 8(c), the inner shell 30 is provided with two through holes 30a and 30b. These through holes 30a, 30b are holes for discharging the liquid stored in the additive liquid storage case 22 to the outside. In this embodiment, the through hole 30a has a larger diameter than the through hole 30b, and also functions as a hole for the user to put the additive liquid into the additive liquid storage case 22.

On the inner surface side of the outer shell 28, as shown in FIG. 8(b), a third protrusion 28d is further provided. The third protrusion 28d is arranged to face the through hole 30a of the inner housing 30 to close the through hole 30a when it is located at the first rotation position corresponding to the storage position; when it is located at the second rotation position corresponding to the supply position, it does not Opposite the through hole 30a without closing the through hole 30a. By providing the third protrusion 28d in this way, if the outer shell 28 and the inner shell 30 are rotated between the first rotation position and the second rotation position, the storage position and the supply position of the additive liquid can be switched. That is, the third protrusion 28d functions as an opening and closing portion that can move between a position that closes the through hole 30a and a position that is opened.

In addition, as shown in FIG. 8( b ), one of the recesses 28 a of the outer shell 28 is provided so as to cover the entire length of the outer shell 28 in the radial direction, and divide the storage space in the additive liquid storage shell 22. That is, the recessed portion 28a is formed to pass through the annular portion of the outer shell 28. When the outer shell 28 is positioned at the second rotation position corresponding to the supply position, the recess 28a is arranged between the through hole 30a and the through hole 30b. This cuts off a path with a short distance from the path from the through hole 30a to the through hole 30b.

On the inner surface side of the inner shell 30, as shown in FIG. 8(c), a first protrusion 30c and a second protrusion 30d are further provided. The first protrusion 30c and the second protrusion 30d are provided at positions facing each other from the center of the inner shell 30, and are protrusions extending in the radial direction of the inner shell 30. The first protrusion 30c and the second protrusion 30d are parts that are locked with the cover support 32 described later. By locking the first protrusion 30c and the second protrusion 30d with the cover support 32, when the user rotates the cover 20, the outer shell 28 fixed to the cover 20 rotates integrally. The rotation of the inner shell 30 is restricted and does not rotate. With this structure, the supply position and the storage position can be easily switched by the rotation of the cover 20.

As shown in FIG. 3, between the inner shell 30 and the joint part 8, the cover part support 32 is arrange|positioned. The cover support 32 has connecting portions 32a and 32b to the inner cover 26 and a support portion 32c for supporting the inner shell 30.

The connecting portions 32a and 32b are both ring-shaped members, the connecting portion 32a is arranged on the inner side, and the connecting portion 32b is arranged on the outer side. The connecting portion 32a and the connecting portion 32b are connected by four supporting portions 32c. The connecting portion 32a is fitted to the inner edge protrusion 26b inside the inner cover 26 (FIG. 7(b)). The connecting portion 32b is fitted to the outer edge protrusion 26c of the inner cover 26. In the state where the connecting portions 32 a and 32 b are fitted to the inner lid 26, the additive liquid storage case 22 is arranged between the lid portion 20 and the lid portion support 32. The additive liquid storage shell 22 is sandwiched between the cover 20 and the cover support 32 in a state of being supported by the support 32 c of the cover support 32.

Next, the joint portion 8 will be described. The joint portion 8 includes a joint body 34, a plurality of joints 36a, 36b, 36c (FIG. 1), a discharge flow path forming portion 38, a suction flow path forming portion 40, and a miniaturization nozzle portion 42 (FIG. 6).

The joint main body 34 is a main body that supports the plurality of joints 36a to 36c, the ejection flow path forming portion 38, the suction flow path forming portion 40, and the miniaturization nozzle portion 42.

The joints 36a to 36c are plural joints extending from the joint body 34. In this embodiment, as shown in FIG. 6, the joints 36 b and 36 c communicate with the suction flow path forming portion 40, and the joint 36 a communicates with the ejection flow path forming portion 38. The joint 36a is connected to the second nozzle 18, and the joint 36b is connected to the first nozzle 10, and the joint 36c is not used. By connecting the joint 36 b and the first nozzle 10, the first nozzle 10 is configured to supply the liquid from the suction flow path forming portion 40. By connecting the joint 36 a and the second nozzle 18, it is configured to supply the liquid containing the fine bubbles from the second nozzle 18 to the ejection flow path forming portion 38.

The ejection flow path forming portion 38 is a cylindrical member protruding from the center of the joint body 34 as shown in FIGS. 3 and 6, and constitutes a ejection flow path for ejecting the liquid from the second nozzle 18 to the bathtub 4. The ejection flow path forming portion 38, as shown in FIG. 6, is connected to the inner surface side of the connecting portion 32a of the cover support 32, and the connecting portion 32a of the cover support 32 is fitted into the inner edge protrusion 26b of the inner cover 26 . Between the ejection flow path forming portion 38 and the joint body 34, a miniaturization nozzle portion 42 is provided. The miniaturized nozzle portion 42 is a member in which a plurality of flow paths having a diameter smaller than that of the ejection flow path forming portion 38 are formed, and becomes the flow path resistance of the ejection flow path forming portion 38. By providing the miniaturization nozzle portion 42, the miniaturized bubbles flowing from the second nozzle 18 are further miniaturized. The joint part 8 provided with the miniaturization nozzle part 42 also functions as a miniaturization part together with the 2nd nozzle 18 (2nd miniaturization part).

The suction flow path forming portion 40 is a member that forms a flow path through which the liquid sucked from the suction port 48 of the cover portion 20 passes. The suction flow path forming portion 40 is provided on the radially outer side of the ejecting flow path forming portion 38. The suction flow path forming portion 40 and the ejection flow path forming portion 38 are separated from each other by the cylindrical portion of the ejection flow path forming portion 38.

A gasket 44 is provided on the radially outer side of the suction flow path forming portion 40. The gasket 44 is sandwiched between the wall surface 46 of the bathtub 4 and the suction flow path forming portion 40.

In these structures, the suction port 48 as a gap is formed in the edge part (connecting part 32b) of the cover part 20 and the cover part support 32. As shown in FIG. Since the suction port 48 communicates with the flow path of the suction flow path forming part 40, the liquid in the bath 4 is sucked from the suction port 48 of the system gap. In addition, an additive liquid storage case 22 is provided on the way from the suction port 48 to the suction flow path forming portion 40. The through holes 30 a and 30 b of the inner shell 30 of the additive liquid storage shell 22 are arranged so as to be exposed, and the liquid sucked in from the suction port 48 is configured to enter the inner shell 30.

9 and 10, the operation of miniaturizing air bubbles by the fine air bubble generating device 2 configured as described above will be described.

Before using the fine bubble generating device 2, the user injects the additive liquid (for example, oil) into the additive liquid storage case 22. Specifically, the additive liquid is injected into the additive liquid storage case 22 through the through hole 30 a of the inner casing 30. After the additive liquid is injected, the additive liquid is rotated to the first rotation position of the storage position of the additive liquid so that the additive liquid does not flow out. By fitting the concave portion 28 a of the outer shell 28 of the additive liquid storage shell 22 with the protrusion 26 d of the inner cover 26, the additive liquid storage shell 22 storing the additive liquid is attached to the lid 20. After that, the cover support 32 is attached to the joint portion 8 attached to the wall surface 46 of the bathtub 4 with the gasket 44 interposed therebetween, and the cover 20 and the additive liquid storage case 22 are attached to the cover support 32. Specifically, the additive liquid storage case 22 is pressed against the supporting portion 32c of the lid supporting member 32, and the connecting portion 32a of the lid supporting member 32 is connected with the inner edge protrusion 26b of the inner lid 26, and the connecting portion 32b is connected to The outer edge protrusion 26c of the inner cover 26 is connected. As a result, as shown in FIGS. 6 and 9, the additive liquid storage case 22 is arranged between the lid 20 and the lid support 32.

In addition, a suction port 48 is formed in the gap between the lid portion 20 and the outer edge portion (connecting portion 32 b) of the lid portion support 32. In this manner, the cap portion 20 for supplying the additive liquid and the additive liquid storage case 22 are arbitrarily installed and detached so as to form the suction port 48, and the additive liquid can be supplied to the liquid supply path communicating with the suction port 48. In this way, the user's operation is simple and the convenience can be improved.

Thereafter, by rotating the cover portion 20, the inner shell 30 is rotated while maintaining the fixed outer shell 28, and is rotated from the first rotation position of the system storage position to the second rotation position of the system supply position. In this way, the fine bubble generating device 2 is operated in a state where the additive liquid can be supplied.

When the fine bubble generating device 2 operates, the circulation pump 14 shown in FIG. 10 operates. By the operation of the circulating pump 14, a circulating flow of liquid is created in the fine bubble generating device 2. Specifically, the liquid in the bath 4 is sucked in from the suction port 48 of the gap between the lid portion 20 and the lid portion support 32.

The liquid sucked from the suction port 48 flows toward the suction flow path forming portion 40 as shown in FIG. 9. At this time, the through holes 30a and 30b of the inner shell 30 arranged in the middle of the liquid supply path are exposed. There are two through holes 30a, 30b, and a pressure difference between the liquids is generated in the respective through holes 30a, 30b. Therefore, the force of the liquid entering one through hole 30a and flowing out of the other through hole 30b acts. In this embodiment, for example, a flow in which the liquid enters from the large through hole 30a and flows out from the other small through hole 30b is generated.

As described above, in the additive liquid storage case 22 at the second rotation position, a flow path having a shorter distance among the flow paths between the through hole 30a and the through hole 30b is cut off. Therefore, the liquid entering from the through hole 30a passes through the long-distance flow path to reach the through hole 30b (arrow B in FIG. 9). Thereby, most of the additive liquid stored in the additive liquid storage case 22 can be discharged, and the additive liquid can be effectively used.

The additive liquid flowing out from the additive liquid storage case 22 through the through hole 30b is mixed with the liquid. At this time, for example, if the additive liquid system is oil and is hydrophobic, it is mixed in a state of being separated from the liquid, and passes through the suction flow path forming portion 40 toward the joint 36b. After that, the liquid and the additive liquid flow to the first nozzle 10, as shown in FIG. 10, air is injected from the air supply pipe 12, and the circulating pump 14 reaches the air dissolving tank 16. In the air dissolving tank 16, air (oxygen) is dissolved in the liquid by applying pressure. The liquid in which air is dissolved flows to the second nozzle 18 together with the additive liquid.

In the second nozzle 18, the liquid and the additive liquid are opened under atmospheric pressure to decompress and foam, so the dissolved air is made into fine bubbles. With the refinement of bubbles, the oil of the additive liquid is also dispersed, so a liquid in which the oil is finely and evenly dispersed can be produced. In the case of using oil as an additive, the oil acts as a cap for moisture when the user enters the bath, so that moisture does not escape from the skin.

The liquid containing fine air bubbles reaches the joint 36a of the joint 8. As shown in FIG. 9, the liquid containing fine bubbles and the additive liquid pass through the miniaturization nozzle portion 42 from the joint 36a. At this time, by passing through the plural holes of the small diameter of the miniaturization nozzle portion 42, the fine bubbles are further increased. After that, the liquid containing fine bubbles and the additive liquid pass through the flow path in the discharge flow path forming portion 38 and are discharged from the discharge port 50 to the bathtub 4.

As described above, the fine bubble generating device 2 of this embodiment includes: the air dissolving tank 16 (mixing part), the second nozzle 18 (refining part), and the additive liquid supply device 6 (the lid 20 and the additive liquid storage case 22) ). The air dissolving tank 16 mixes liquid and air to dissolve the air in the liquid. The second nozzle 18 finely bubbles the air dissolved in the liquid in the air dissolving tank 16. The additive liquid supply device 6 supplies the additive liquid to the liquid in the liquid supply path located on the upstream side of the liquid flow direction than the second nozzle 18. According to such a configuration, the additive liquid can be dispersed in the second nozzle 18 along with the refinement of the air. Therefore, a liquid that disperses the additive liquid and bubbles together can be generated, and a liquid that functions as the additive liquid can be supplied. Thereby, the convenience of the user can be improved.

In addition, in the fine bubble generating device 2 of the present embodiment, the inlet of the liquid supply path on the upstream side of the second nozzle 18 is a suction port 48 that sucks the liquid into the fine bubble generating device 2. With such a configuration, by supplying the liquid sucked in from the suction port 48 to the air dissolving tank 16, the additive liquid can be efficiently supplied to the air dissolving tank 16. In addition, as in the present embodiment, when the additive liquid supply device 6 is installed near the suction port 48, the additive liquid can be added to the liquid sucked from the suction port 48 and supplied to the air dissolving tank 16, so it can be efficiently The additive liquid is supplied to the air dissolution tank 16. In this way, the convenience of the user can be improved.

In addition, in the fine bubble generating device 2 of this embodiment, the additive liquid supply device 6 is installed in the liquid supply path communicating with the suction port 48. By arranging the additive liquid supply device 6 in this way, the additive liquid can be added to the liquid sucked in from the suction port 48 and supplied to the air dissolving tank 16, so the additive liquid can be efficiently supplied to the air dissolving tank 16. In this way, the convenience of the user can be improved.

In addition, in the fine bubble generating device 2 of the present embodiment, the additive liquid supply device 6 forms a discharge port 50 for discharging liquid downstream of the second nozzle 18, and a suction port 48 is formed around the discharge port 50. In this way, by using the additive liquid supply device 6 to have a configuration in which the suction port 48 is provided around the ejection port 50, the liquid can be sucked and ejected efficiently.

In addition, in the fine bubble generating device 2 of this embodiment, the additive liquid is oil. In this way, liquids with various effects caused by oil can be produced.

Furthermore, this embodiment provides an additive liquid supply device 6 for supplying an additive liquid to the liquid ejected into the bathtub 4. The additive liquid supply device 6 of the present embodiment includes a cover 20 and an additive liquid storage case 22. The cover 20 forms a discharge port 50 for discharging liquid toward the bathtub 4 and a suction port 48 for sucking liquid around the discharge port 50. The additive liquid storage case 22 is attached to the lid portion 20 and stores the additive liquid in a manner capable of supplying the flow path of the liquid communicating with the suction port 48 of the lid portion 20. According to this structure, an additive liquid can be added to the liquid sprayed into the bath 4, and a liquid having the function of the additive liquid can be supplied to the bath 4. In addition, the additive liquid storage case 22 can be installed and arranged on the cover 20 formed with the spouting port 50 and the suction port 48, so the user can easily install it. In this way, the convenience of the user can be improved.

In addition, in the additive liquid supply device 6 of the present embodiment, the additive liquid storage shell 22 is formed with two through holes 30a, 30b communicating with the storage space for storing the additive liquid. The two through holes 30a and 30b are arranged to be installed in the lid portion 20 when the liquid flows The road exposes two through holes 30a and 30b. In this way, by forming two through holes 30 a and 30 b so as to be exposed to the flow path of the liquid, when a pressure difference is generated between the respective through holes 30 a and 30 b, the liquid can enter the additive liquid storage shell 22. Thereby, the additive liquid can be efficiently taken out from the additive liquid storage case 22 and supplied with the liquid.

In addition, in the additive liquid supply device 6 of the present embodiment, the additive liquid storage case 22 is further provided with an opening and closing portion (third protrusion 28d), which can be located at a position where one of the two through-holes 30a, 30b is closed and one is opened. Move between. By providing these opening and closing parts, it is possible to easily switch between the mode in which the additive liquid is supplied and the mode in which the additive liquid is not supplied, and the additive liquid can be supplied as desired by the user.

As mentioned above, although the above-mentioned embodiment was mentioned and demonstrated about this invention, this invention is not limited to the above-mentioned embodiment. For example, in the embodiment, although the case where the lid portion 20 and the additive liquid storage case 22 of the additive liquid supply device 6 and the suction port 48 are integrally formed will be described, it is not limited to these cases. If it is a form in which the additive liquid is added to the upstream side from the second nozzle 18 of the miniaturization part, the supplied additive liquid can be dispersed by the miniaturization part. That is, if the path from the liquid supply path on the upstream side of the miniaturization part (the second nozzle 18) to the miniaturization part via the mixing part (air dissolving tank 16) is reached, or the liquid is supplied and added to the miniaturization part The same effect can be achieved by configuring the additive liquid supply device 6 in the liquid mode. In addition, for example, when the additive liquid is supplied to the second nozzle 18 of the miniaturization part and the air dissolving tank 16 of the mixing part, the flange of the bath 4 may be provided with an input port, and the user can simply put in the input port An additive liquid may be added as an additive liquid. According to these methods, the additive liquid can be added more easily, and the user's convenience can be improved.

On the other hand, when the additive liquid is supplied to the air supply pipe 12, there is a possibility that the additive liquid is mixed with air and the air is mixed, so the additive liquid is not supplied to the air supply pipe 12.

In addition, in the embodiment, although the case where the suction port 48 is integrally formed around the ejection port 50 is described, it is not limited to these cases. The spouting port 50 and the suction port 48 can also be separately arranged at any position of the bath 4.

In addition, in the embodiment, the case where two through holes 30a, 30b for discharging the additive liquid in the additive liquid storage casing 22 are provided in the inner shell 30 will be described, but it is not limited to these cases. If the additive liquid can be discharged Any configuration can also be adopted. For example, three or more through holes may be provided in the inner shell 30. However, if two through holes 30a and 30b are provided in this embodiment, the pressure difference between the through holes 30a and 30b causes the liquid to enter from one through hole 30a, and the liquid to flow out from the other through hole 30b. The flow is the easiest to produce. Therefore, from the viewpoint of efficiently supplying the additive liquid, etc., it is best to provide only two through holes 30a and 30b.

In addition, in the embodiment, although the case where the additive liquid system is oil is described, for example, it may be any liquid such as hydrophobic other liquids or hydrophilic alcohol.

In addition, by appropriately combining any of the above-mentioned various embodiments, the respective effects can be achieved.

2‧‧‧Fine bubble generating device 4‧‧‧Bath 6‧‧‧Adding liquid supply device 8‧‧‧Connector part (fine part) 10‧‧‧First nozzle 12‧‧‧Air supply pipe 14‧‧‧ Circulation pump 16‧‧‧Air dissolving tank (mixing part) 18‧‧‧Second nozzle (micronization part) 20‧‧‧Cover part (additive liquid supply device) 22‧‧‧Additional liquid storage shell (additive liquid supply device ) 24‧‧‧Outer cover 26‧‧‧Inner cover 26a‧‧‧Opening 26b‧‧‧Inner edge projection 26c‧‧‧Outer edge projection 26e‧‧‧Protrusion 26d‧‧‧Protrusion 28‧‧‧Outer shell 28a‧‧‧Concavity 28b‧‧‧First projection 28c‧‧‧Second projection 28d‧‧‧Third projection (opening and closing part) 30‧‧‧Inner shell 30a, 30b‧‧‧through hole 30c‧‧‧first Protrusion 30d‧‧‧Second protrusion 30e‧‧‧Protrusion 32‧‧‧Lid support 32a, 32b‧‧‧Connecting part 32c‧‧‧Supporting part 34‧‧‧Connector body 36a, 36b, 36c‧‧‧Connector 38‧‧‧Ejection flow path formation part 40‧‧‧Suction flow path formation part 42‧‧‧Miniature nozzle part 44‧‧‧Packing 46‧‧‧Wall surface 48‧‧‧Suction port 50‧‧‧Ejection port

Fig. 1 is a schematic diagram of the fine bubble generating device of the embodiment. Fig. 2 is a schematic diagram of a fine bubble generating device. Fig. 3 is a schematic diagram of a fine bubble generating device. Fig. 4 is a schematic diagram of a fine bubble generating device. Fig. 5 is a schematic diagram of a fine bubble generating device. Fig. 6(a) is a schematic view of the fine bubble generating device; Fig. 6(b) is a schematic view of the additive liquid storage case. Fig. 7(a) is a schematic view of the cover; Fig. 7(b) is a schematic view of the cover; Fig. 7(c) is a schematic view of the cover. Figure 8 (a) is a schematic view of the additive liquid storage shell; Figure 8 (b) is a schematic diagram of the additive liquid storage shell; Figure 8 (c) is a schematic view of the additive liquid storage shell. Fig. 9 is a schematic diagram for explaining the flow of the liquid and the additive liquid in the fine bubble generating device. Fig. 10 is a schematic diagram for explaining the flow of the liquid and the additive liquid in the fine bubble generating device.

2‧‧‧Micro bubble generator

6‧‧‧Adding liquid supply device

8‧‧‧Connector part (miniature part)

10‧‧‧Nozzle 1

12‧‧‧Air supply pipe

14‧‧‧Circulating pump

16‧‧‧Air dissolving tank (mixing part)

18‧‧‧The second nozzle (micronized part)

36a, 36b, 36c‧‧‧connector

Claims (8)

A fine bubble generating device comprising: a mixing section that mixes liquid and air to dissolve the air in the liquid; a miniaturization section that makes air dissolved in the liquid in the mixing section into fine bubbles; and an additive liquid supply device, The liquid supply path that is located on the upstream side of the flow direction of the liquid than the micronization part starts from the path through the mixing part to the micronization part, or at the micronization part, an additive liquid is supplied to the liquid; the liquid supply path , Is located on the upstream side of the mixing section and is a flow path for supplying liquid to the mixing section. The inlet of the liquid supply path is the suction port for sucking the liquid; the additive liquid supply device is installed in the suction The supply path of the liquid connected to the port. For example, the fine bubble generating device of the first item in the scope of patent application, wherein the additive liquid supply device forms a discharge port for discharging liquid downstream of the miniaturization part, and the suction port is formed around the discharge port. For example, the fine bubble generating device of item 1 or 2 in the scope of patent application, wherein the additive liquid is oil. A bathtub equipped with a fine bubble generating device as in any one of items 1 to 3 in the scope of the patent application. An additive liquid supply device for supplying additive liquid to liquid sprayed into a bathtub, comprising: a cover formed with a spray port for spraying liquid toward the bathtub, and a suction port for sucking the liquid around the spray port; and The additive liquid storage case is attached to the lid portion, and stores the additive liquid in a manner that can be supplied to the flow path of the liquid communicating with the suction port of the lid portion. For example, the additive liquid supply device of item 5 of the scope of patent application, wherein the additive liquid storage shell is formed with two through holes communicating with the storage space for storing the additive liquid, and the additive liquid storage shell is configured to be installed on the cover At the time, the two through holes are exposed in the flow path of the liquid. For example, the additive liquid supply device of item 6 of the scope of patent application, wherein the additive liquid storage case is further provided with an opening and closing part that can be between a closed position and an open position of one of the two through holes mobile. For example, the additive liquid supply device of any one of items 5 to 7 in the scope of patent application, wherein the additive liquid is oil.

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