JP6715458B2 - Additive liquid supply device and fine bubble generator including the same - Google Patents

Description

The present invention relates to an additive liquid supply device and a fine bubble generation device including the same.

BACKGROUND ART Conventionally, there has been proposed a fine bubble generator that dissolves air in a liquid and then turns into fine bubbles (for example, Patent Document 1).

The fine bubble generator of Patent Document 1 mixes liquid and air in a tank to dissolve air in the liquid, then takes out the liquid to the outside of the tank and depressurizes it to generate fine bubbles.

JP, 2010-75919, A

However, in recent years, it has been required to further improve the convenience of the user who uses the fine bubble generation device. With the configuration as disclosed in Patent Document 1, it is possible to make bubbles fine, but it is not supposed to make other substances fine, and it can be said that there is still room for improvement in terms of user convenience. ..

Therefore, an object of the present invention is to provide a fine bubble generating device and an additive liquid supply device used for the same, which can improve the convenience of the user in solving the above problems.

In order to achieve the above object, the additive liquid supply device of the present invention sucks the liquid in the bathtub from a suction port provided on the wall surface of the bathtub and discharges the sucked liquid from a discharge port provided on the wall surface. In the case of the additive liquid supply device for supplying the additive liquid to the circulation flow path extending from the suction port to the discharge port, a case of forming a storage space for storing the additive liquid, the storage space An addition liquid storage case that has a through hole that communicates with the outside and is detachably attached to the suction port by a rotary fitting, and the addition liquid storage case opens and closes the through hole in a sliding manner. When the additive liquid storage case is attached to the suction port, the opening/closing mechanism is slid from the position where the through hole is closed to the position where the through hole is opened. It acts as a rotational force in the direction opposite to the rotational direction of removing from.

Further, the fine bubble generator of the present invention is provided with the additive liquid supply device, the circulation flow path, a mixing unit for mixing air into the liquid sucked from the suction port to dissolve the air in the liquid, and the circulation flow. A micro-bubble generator provided in a passage, comprising a micronization unit for micronizing the air dissolved in the liquid in the mixing unit, wherein the additive liquid storage case of the additive liquid supply unit includes the circulation unit. It is fixed so as to supply the additive liquid to the micronized portion or the upstream side of the micronized portion in the flow path.

According to the additive supply device of the present invention and the fine bubble generator including the same, convenience for the user can be improved.

Schematic of a fine bubble generator according to an embodiment Schematic diagram of micro bubble generator Perspective view of additive liquid supply device and joint Side view of additive liquid supply device and joint Exploded perspective view of additive liquid supply device Further exploded perspective view of the additive liquid supply device Further exploded perspective view of the additive liquid supply device Perspective view of the back side of the outer cover Perspective view of the front side of the inner cover Partial sectional view showing how the outer cover and inner cover are attached Perspective view of the back side of the outer case Perspective view of the front side of the inner case Partial cross-sectional view showing the mounting state of the outer case and the inner case Perspective view of the back side of the inner cover Perspective view of the front side of the inner case Partial sectional view showing how the inner cover and inner case are attached Partial perspective view showing how the inner cover and inner case are attached Front view of outer case Front view of inner cover Front view of outer cover Front view of additive liquid supply device corresponding to outflow state of additive liquid Front view of additive liquid supply device corresponding to storage state of additive liquid Rear view of outer case Rear view of oil packing Rear view of inner case Rear view of additive liquid supply device corresponding to storage state of additive liquid Rear view of the additive liquid supply device corresponding to the outflow state of the additive liquid Rear view of inner cover Front view of cover holder Partial sectional view showing how the inner cover and cover holder are attached Sectional drawing which shows the state which the additive liquid supply apparatus and the joint were attached to the wall surface of the bathtub. Schematic cross-sectional view for explaining the flows of the liquid and the additive liquid in the fine bubble generator. Schematic perspective view for explaining flows of the liquid and the additive liquid in the fine bubble generator. Rear view of cover (inner cover) Rear view of the additive storage case in the first rotation position Rear view of the additive storage case in the second rotation position Perspective view of additive liquid supply device and joint Rear view of additive liquid supply device

Embodiments according to the present invention will be described below in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 and FIG. 2 are views showing a schematic configuration of a fine bubble generator 2 according to the embodiment.

The fine bubble generator 2 is a device that decompresses a liquid in which air is dissolved to form fine bubbles, and is used, for example, provided in the bathtub 4 (FIG. 1). As shown in FIGS. 1 and 2, the fine bubble generating device 2 includes an additive liquid supply device 6 (FIG. 2), a joint portion 8, a first nozzle 10, an air supply pipe 12, and a circulation pump 14. An air dissolving tank 16 and a second nozzle 18 are provided.

The additive liquid supply device 6 is a device that adds an additive liquid (for example, oil) to the liquid sucked from the bathtub 4. In the present embodiment, the additive liquid supply device 6 is attached to the wall surface 46 of the bathtub 4 and connects the suction port and the discharge port of the bathtub 4 to each other. Also serves as. That is, the suction port and the discharge port are provided on the wall surface 46 of the bathtub 4.

The liquid in the bathtub 4 is sucked from the suction port of the additive liquid supply device 6, and the joint portion 8, the first nozzle 10, the circulation pump 14, the air dissolving tank 16, and the second nozzle 18 are sequentially arranged from the upstream side in the liquid flow direction. , The joint portion 8 and the additive liquid supply device 6 (discharge port). The fine bubble generating device 2 including such an additive liquid supply device 6 sucks the liquid in the bathtub 4 from the suction port of the bathtub 4 and extends from the suction port to the water discharge port so that the sucked liquid is discharged from the discharge port. A circulation channel is formed.

Hereinafter, each structure of the fine bubble generator 2 will be described in order.

The joint portion 8 is a joint portion for connecting a plurality of nozzles, and in the present 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 via the joint 36b. The liquid flowing from the second nozzle 18 is supplied to the discharge port of the additive liquid supply device 6 via the joint 36a. Detailed configurations 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. An air supply pipe 12 is connected in the middle of the first nozzle 10. 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 is mixed with the liquid in the first nozzle 10. Liquid and air are supplied to the downstream circulation pump 14 in a mixed state.

The circulation pump 14 is a pump connected between the first nozzle 10 and the air dissolving tank 16, and generates a pressure for circulating the liquid. By providing the circulation pump 14, the liquid flow in the entire fine bubble generating device 2 described above 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 a liquid. The air dissolution tank 16 dissolves air (oxygen) in the liquid by applying pressure to the liquid mixed with the air.

The second nozzle 18 is a nozzle connected between the air dissolving tank 16 and the joint portion 8. The second nozzle 18 reduces the pressure by opening the liquid in which the air is dissolved in the air dissolving tank 16 to the atmospheric pressure, and generates fine bubbles. In this way, the second nozzle 18 functions as a miniaturization section. As will be described later, the joint portion 8 on the downstream side of the second nozzle 18 also functions as a finer portion that makes the air dissolved in the liquid into fine bubbles.

With the configuration described above, the fine bubble generation device 2 is configured to discharge the liquid containing the air finely bubbled by the second nozzle 18 and the joint portion 8 toward the bath 4.

Next, the configurations of the additive liquid supply device 6 and the joint portion 8 will be described with reference to FIGS. 3A to 12B.

FIG. 3A is a perspective view in which the additive supply device 6, the cover holder 32, and the joint portion 8 are arranged in the order in which they are attached to each other. FIG. 3B is a side view showing a state where the additive supply device 6, the cover holder 32, and the joint portion 8 are attached to each other. As shown in FIGS. 3A and 3B, the additive liquid supply device 6 is attached to the joint portion 8 via the cover holder 32. As shown in FIG. 3B, the wall surface 46 of the bathtub 4 is arranged between the cover holder 32 and the joint portion 8. The wall surface 46 is fitted to the packing 44 provided on the joint portion 8. The packing 44 seals the inside (the side where the additive liquid supply device 6 is arranged) and the outside (the side where the joint part 8 is arranged) of the wall surface 46 with each other.

Next, a detailed configuration of the additive liquid supply device 6 will be described. FIG. 4A is an exploded perspective view from the front surface side of the additive supply device 6 and the cover holder 32, and FIG. 4B is a further exploded perspective view of FIG. 4A. FIG. 4C is an exploded perspective view from the opposite side of FIG. 4B.

As shown in FIG. 4A, the additive liquid supply device 6 includes a cover 20 and an additive liquid storage case 22. The cover 20 is a cover exposed to the bathtub 4. The cover 20 is detachably attached to a cover holder 32 described later. A suction port 48 and a discharge port 50 are formed in the cover 20. In the present specification, the suction port 48 and the discharge port 50 are described as the gaps in the cover 20, but may be the case where they mean the openings (not shown) in the wall surface 46 of the bathtub 4 which communicate with the gaps. .. The additive liquid storage case 22 is an additive liquid storage unit that stores the additive liquid to be added to the liquid sucked from the suction port 48 of the cover 20. The additive liquid storage case 22 is used by being attached to the back side of the cover 20. The side of the additive liquid storage case 22 that is exposed toward the bath 4 is covered with the cover 20. The additive liquid storage case 22 is configured to be removable from the cover 20.

As shown in FIGS. 4B and 4C, the cover 20 includes an outer cover 24 on the front side and an inner cover 26 on the back side. The outer cover 24 and the inner cover 26 are configured to be attachable to each other, and are used in a state of being fixed to each other at the time of use.

The outer cover 24 is a cover in which a discharge port 50 is formed in the central portion and a suction port 48 is formed in the side surface. 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, like the other constituent members of the additive liquid supply device 6. The inner cover 26 is a cover on the back side that fits into the outer cover 24. An opening 26a is formed in the center of the inner cover 26, and an opening 26k is formed in the side surface. The discharge port 50 of the outer cover 24 and the opening 26a of the inner cover 26 face each other, and the suction port 48 and the opening 26k face each other.

The mounting relationship between the outer cover 24 and the inner cover 26 will be described with reference to FIGS. 5A-5C. 5A is a perspective view of the back surface side of the outer cover 24, FIG. 5B is a perspective view of the front surface side of the inner cover 26, and FIG. 5C is a partial cross-sectional view showing a mounting state of the outer cover 24 and the inner cover 26. It is a figure. As shown in FIGS. 5A and 5B, the outer shapes of the outer cover 24 and the inner cover 26 are both circular and have a circular surface with an opening formed in the center and extend in a direction orthogonal to the outer peripheral portion of the surface. It is composed of the expanded side surface.

As shown in FIG. 5A, a protrusion 24c that protrudes inward in the radial direction is formed at the tip (lower end) of the side surface 24b of the outer cover 24. As shown in FIG. 5B, the side surface 26b of the inner cover 26 is provided with a plurality of projections 26c that project outward in the radial direction (in this embodiment, four projections 26c are provided at intervals in the circumferential direction). In such a configuration, the protrusions 26c of the inner cover 26 are inserted inside the protrusions 24c of the outer cover 24 while the side surface 24b of the outer cover 24 is radially outwardly expanded. As shown in FIG. 5C, the protrusion 26 c of the inner cover 26 is caught and fixed to the protrusion 24 c of the outer cover 24. At this time, the protrusion 26c of the inner cover 26 is hooked on the portion of the side surface 24b of the outer cover 24 that protrudes inward in the radial direction, and is fixed at a position that does not rotate in the circumferential direction. In this fixed state, the discharge port 50 communicates with the opening 26a, and the suction port 48 communicates with the opening 26k.

Next, the additive liquid storage case 22 will be described. 4B and 4C, the additive liquid storage case 22 includes an outer case 28, an oil packing 29, and an inner case 30. The oil packing 29 is arranged between the outer case 28 and the inner case 30. The outer case 28 and the inner case 30 are attached to each other to form a storage space for storing the additive liquid inside. Both the outer case 28 and the inner case 30 are annular members whose central portion in the radial direction penetrates, and forms a storage space for storing the additive liquid in the annular portion. The oil packing 29 has a function of stopping (sealing) the added liquid in the storage space so as not to leak when the added liquid supply device 6 is carried or installed.

The mounting relationship between the outer case 28 and the inner case 30 will be described with reference to FIGS. 6A-6C. 6A is a rear view showing a back surface 28p (side facing the inner case 30) of the outer case 28, and FIG. 6B is a front view showing a surface 30h of the inner case 30 (side facing the outer case 28). It is a figure. FIG. 6C is a partial cross-sectional view showing a mounting state of the outer case 28 and the inner case 30.

As shown in FIG. 6A, a groove 28a for disposing the oil packing 29 is provided on the back surface 28p of the outer case 28. The outer shape of the peripheral portion of the groove 28a is set to be substantially the same as the outer shape of the oil packing 29, and the oil packing 29 can be arranged and fixed. The space of the groove 28a sealed by the oil packing 29 is configured as a storage space for the additive liquid. As will be described later, the oil packing 29 is provided with a plurality of through holes, and the storage space inside the oil packing 29 can be accessed through the through holes. A portion of the back surface 28p other than the groove portion 28a projects toward the inner case 30 beyond the groove portion 28a, and is configured to contact the front surface 30h of the inner case 30.

The back surface 28p of the outer case 28 is provided with a flange 28c that extends to the back surface side and then projects outwardly in the radial direction (FIGS. 6A and 6C). As shown in FIG. 6A, a plurality of notches 28b are formed at the inlet of the flange 28c (in this embodiment, five notches 28b are provided at intervals in the circumferential direction). As shown in FIG. 6B, on the front surface 30h side of the inner case 30, a plurality of protrusions 30b protruding inward in the radial direction are provided at the tip portion (upper end portion) of the side surface 30a (five places in this embodiment). ). The plurality of protrusions 30b are provided at positions corresponding to the cutouts 28b of the outer case 28 described above. In such a configuration, the protrusion 30b of the inner case 30 is inserted into the notch 28b of the outer case 28 and rotated in the circumferential direction. As a result, as shown in FIG. 6C, the protrusion 30b is caught by the flange 28c of the outer case 28 and fixed in the height direction. The flange 28c extends in the circumferential direction, and the outer case 28 and the inner case 30 are fitted to each other in a relatively rotatable state in the circumferential direction.

The additive liquid storage case 22 shown in FIG. 6C is attached to the cover 20 while maintaining the mutually rotatable state of the outer case 28 and the inner case 30. Specifically, the inner case 30 is fixed to the inner cover 26 of the cover 20, and the outer case 28 is maintained in a rotatable state without being fixed to the cover 20, and the additive liquid storage case 22 is fixed to the cover 20. Install.

The mounting relationship between the inner case 30 and the inner cover 26 will be described with reference to FIGS. 7A-7D. 7A is a perspective view of the back surface side of the inner cover 26, FIG. 7B is a perspective view of the front surface side of the inner case 30, and FIGS. 7C and 7D show the mounting state of the inner case 30 and the inner cover 26. FIG.

As shown in FIG. 7A, a back surface (a surface facing the inner case 30) 26j of the inner cover 26 is provided with an inner edge protruding portion 26d protruding in a cylindrical shape. Two groove portions 26e are provided at the tip portion (lower end portion) of the inner edge protruding portion 26d. The groove portions 26e in the present embodiment are provided at two locations in the circumferential direction at intervals so as to be arranged to face each other. The groove portion 26e is a portion where the outer peripheral surface of the inner edge protruding portion 26d is recessed radially inward. The groove portion 26e includes an axial portion that extends in the axial direction from the tip portion of the inner edge protruding portion 26d, and a circumferential portion that extends in the circumferential direction from the other end of the axial portion. As shown in FIG. 7B, a surface (a surface facing the inner cover 26) 30h of the inner case 30 is provided with an inner edge protruding portion 30c that protrudes in a cylindrical shape. The diameter of the inner edge protruding portion 30c is set to be slightly larger than the diameter of the inner edge protruding portion 26d of the inner cover 26 described above. Two protrusions 30d that protrude inward in the radial direction are provided at the tip (upper end) of the inner edge protrusion 30c. The protrusion 30d is provided at a position corresponding to the groove portion 26e of the inner cover 26 described above.

In such a configuration, the protrusion 30d of the inner case 30 is axially inserted into the groove portion 26e of the inner cover 26 to engage the protrusion 30d with the axial portion of the groove portion 26e. Then, by rotating the inner case 30 in the circumferential direction with respect to the inner cover 26, the projection 30d is slid while being engaged with the circumferential portion of the groove portion 26e. As a result, as shown in FIG. 7C, the inner edge protrusion 26d of the inner cover 26 and the protrusion 30d of the inner case 30 mesh with each other, so that the inner case 30 and the inner cover 26 are fixed to each other. At this time, the inner edge protrusion 30c of the inner case 30 passes through the opening 28k (FIGS. 4A and 6A) in the central portion of the outer case 28 described above, and is fitted into the inner edge protrusion 26d of the inner cover 26.

As shown in FIG. 7A, the side surface 26b of the inner cover 26 is provided with a claw portion 26f protruding inward in the radial direction (in this embodiment, at one location). As shown in FIG. 7B, a notch 30g is provided on the side surface 30a of the inner case 30 (in this embodiment, one place). The notch 30g is provided at a position corresponding to the claw portion 26f of the inner cover 26. In such a configuration, by disposing the tip portion of the claw portion 26f with respect to the notch 30g, relative rotation of the inner case 30 and the inner cover 26 in the circumferential direction is restricted as shown in FIG. 7D. It

The notch 30g provided on the outer peripheral surface of the inner case 30 functions as a recess for accommodating the claw portion 26f, and functions as a fixing mechanism for fixing the additive liquid storage case 22 to the cover 20. The notch 30g fixes the additive liquid storage case 22 at a fixed position that is rotated by a predetermined angle in the circumferential direction from a fitting start position where fitting is started with respect to the cover 20.

The inner case 30 is fixed to the inner cover 26 of the cover 20, but the outer case 28 is arranged with a space between the side surface 26b and the back surface 26j of the inner cover 26 (not shown). That is, with the inner case 30 fixed to the inner cover 26, the outer case 28 is rotatable with respect to the inner case 30 in the circumferential direction.

8A shows the surface 28d of the outer case 28, FIG. 8B shows the surface 26g of the inner cover 26, and FIG. 8C shows the surface 24d of the outer cover 24. As shown in FIG. 8A, a lever 28e is provided on the surface 28d of the outer case 28. The lever 28e is a protrusion that the user grips to rotate the outer case 28 in the circumferential direction with respect to the inner case 30. As shown in FIG. 8B, a surface 26g of the inner cover 26 is provided with an arc-shaped opening 26h. As shown in FIG. 8C, an arc-shaped opening 24e is provided on the surface 24d of the outer cover 24. When the inner cover 26 and the outer cover 24 are fixed to each other, the opening 26h and the opening 24e are arranged at positions facing each other. The lever 28e of the outer case 28 passes through the opening 26h of the inner cover 26 and the opening 24e of the outer cover 24 and is exposed on the surface 24d side of the outer cover 24.

In this embodiment, by rotating the lever 28e of the outer case 28 in the circumferential direction, the outflow state and the storage state (holding state) of the additive liquid stored in the storage space of the additive liquid storage case 22 are switched. Composed. As shown in FIGS. 9A and 9B, in a state where the lever 28e of the outer case 28 is exposed to the outside, an outflow state in which the additive liquid flows out (FIG. 9A) and an addition liquid is stored without flowing out to the outside. The storage state (FIG. 9B) is switched.

A specific mechanism for switching the outflow state and the storage state of the added liquid will be described. As shown in FIG. 7B, on the surface 30h of the inner case 30, a plurality of through holes 30f (52), 54, 56 communicating with the storage space in the additive liquid storage case 22 are provided. These through holes 30f, 54, 56 are switched between a state of communicating with the storage space inside the oil packing 29 (outflow state) and a state of not communicating with the storage space inside the oil packing 29 (storage state).

10A is a rear view showing the back surface 28p of the outer case 28, FIG. 10B is a rear view showing the back surface 29a of the oil packing 29, and FIG. 10C is a rear view showing the back surface 30e of the inner case 30. .. 10D and 10E are rear views showing the attachment state (additive liquid storage case 22) of the outer case 28 and the inner case 30.

As shown in FIG. 10A, a groove 28a is formed in the back surface 28p of the outer case 28 along the circumferential direction. A protrusion 28q for disposing and fixing the oil packing 29 shown in FIG. 10B is provided on the peripheral portion of the groove 28a on the back surface 28p. The protrusion 28q is a portion protruding toward the back surface side of the outer case 28, has a shape corresponding to a groove (not shown) provided on the front surface side of the oil packing 29, and engages with the groove.

As shown in FIG. 10B, the oil packing 29 is a rubber member having a shape corresponding to the groove 28a and the protrusion 28q described above, and is a storage space for the additive liquid together with the groove 28a in a state of being engaged with the protrusion 28q. To form. The oil packing 29 in the present embodiment is formed with three openings 29b, 29c, 29d. The storage space in the oil packing 29 can be communicated with through the openings 29b, 29c, 29d.

As shown in FIG. 10A, a protrusion 28g is provided on the back surface 28p of the outer case 28 except for the groove 28a. The protrusion 28g is provided at a position corresponding to the first through hole 30f of the inner case 30 shown in FIG. 10C. The second through hole 54 shown in FIG. 10C is provided at a position corresponding to the second through hole 29c of the oil packing 29, and the third through hole 56 corresponds to the third through hole 29d of the oil packing 29. It is provided at the position where

As shown in FIGS. 10D and 10E, in a state where the outer case 28 and the inner case 30 are attached to each other with the oil packing 29 sandwiched therebetween, the protrusion 28g of the outer case 28 passes through the through hole 30f of the inner case 30, It is exposed on the back surface 30e side of the inner case 30. Since the protrusion 28g moves integrally with the lever 28e (FIGS. 9A and 9B) provided on the front surface side of the outer case 28, the user can change the outflow state and the storage state of the addition liquid from the back side of the addition liquid storage case 22 as well. It can be confirmed.

FIG. 10D shows the storage state of the additive liquid, and FIG. 10E shows the outflow state of the additive liquid. In the storage state shown in FIG. 10D, the protrusion 28g of the outer case 28 is arranged on the rightmost side of the through hole 30f of the inner case 30. At this time, the oil packing 29 is not exposed in the through hole 30f of the inner case 30, but the back surface 28p of the outer case 28 is exposed. The through hole 30f is sealed by the back surface 28p and does not communicate with the storage space inside the oil packing 29. Further, the second through hole 54 and the third through hole 56 are arranged at positions facing the recess 29h in which the oil packing 29 shown in FIG. 10B is recessed inward, and the second through hole 29c of the oil packing 29 is disposed. And does not communicate with the third through hole 29d. Therefore, the second through hole 54 and the third through hole 56 are sealed without communicating with the storage space in the oil packing 29. In this way, the additive liquid does not flow out of any of the first through hole 52, the second through hole 54, and the third through hole 56, and the additive liquid is stored in the storage space.

On the other hand, in the outflow state shown in FIG. 10E, the protrusion 28g of the outer case 28 has been moved to the left side in the figure. At this time, the first through hole 29b (52) of the oil packing 29 arranged in the groove 28a of the outer case 28 is exposed at the right end of the through hole 30f of the inner case 30. The storage space in the oil packing 29 and the external space communicate with each other through the first through hole 52. Further, the second through hole 54 and the third through hole 56 are arranged at positions facing the second through hole 29c and the third through hole 29d (FIG. 10B) of the oil packing 29, respectively. The storage space and the external space communicate with each other through the through holes 54 and 56 and the through holes 29c and 29d. In this way, all of the first through hole 52, the second through hole 54, and the third through hole 56 communicate with the storage space in the oil packing 29, and the additive liquid in the storage space can flow out and flow in. It will be in a state.

As described above, by sliding the lever 28e of the additive liquid storage case 22, the rotational position of the outer case 28 (rotating portion) with respect to the inner case 30 (fixed portion) can be switched. Specifically, the outer case 28 is located between the first rotation position (the storage state) in which the through holes 52, 54, 56 are closed and the second rotation position (the outflow state) in which the through holes 52, 54, 56 are opened. Can be rotated. In this way, the user can switch between the storage state and the outflow state of the additive liquid by a simple operation.

When the additive liquid supply device 6 including the cover 20 and the additive liquid storage case 22 in the above-described mounting relationship is attached to the cover holder 32 as shown in FIG. 3B, the inner cover 26 is attached to the cover holder 32.

The mounting relationship between the inner cover 26 and the cover holder 32 will be described with reference to FIGS. 11A-11C. 11A is a rear view showing the back surface 26j of the inner cover 26, FIG. 11B is a front view showing the front surface 32a of the cover holder 32, and FIG. 11C shows a mounting state of the inner cover 26 and the cover holder 32. FIG.

As shown in FIG. 11A, on the side of the back surface 26j of the inner cover 26, a plurality of protrusions 26i protruding inward in the radial direction are provided at the tip portion (lower end portion) of the side surface 26b (in the present embodiment, in the circumferential direction). (4 places apart from each other). As shown in FIG. 11B, the front surface 32a of the cover holder 32 is provided with a plurality of flanges 32c that protrude to the front surface side and then protrude outward in the radial direction. A plurality of cutouts 32b are provided at the inlet portions of the plurality of flanges 32c (in this embodiment, four locations are provided at intervals in the circumferential direction). The plurality of notches 32b are provided at positions corresponding to the plurality of protrusions 26i of the inner cover 26. In such a configuration, the protrusion 26i of the inner cover 26 is inserted into the notch 32b of the cover holder 32 and rotated in the circumferential direction. As a result, as shown in FIG. 11C, the protrusion 26i is caught and fixed to the flange 32c.

FIG. 12 shows a cross-sectional view in which the additive supply device 6 is attached to the joint portion 8 via the cover holder 32. As shown on the left side of the paper surface of FIG. 12, the inner case 30 is arranged with a gap from the cover holder 32, and a liquid flow path is formed therebetween. This flow passage is a suction flow passage through which the liquid sucked from the suction port 48 passes, and the added liquid in the storage space S is passed through the through holes 52, 54, 56 of the inner case 30 facing the suction flow passage. Is configured so that it can be supplied.

Next, the joint portion 8 will be described. As shown in FIG. 3A, the joint portion 8 includes a joint body 34, a plurality of joints 36a, 36b, 36c, a discharge flow passage forming portion 38, a suction flow passage forming portion 40, and a miniaturization nozzle 42. Prepare

The joint body 34 is a body portion that supports the plurality of joints 36a to 36c, the discharge flow passage forming portion 38, the suction flow passage forming portion 40, and the atomizing nozzle 42.

The joints 36a-36c are a plurality of joints extending from the joint body 34. In the present embodiment, as shown in FIG. 12, the joint 36a is connected to the discharge passage forming portion 38, and the joints 36b and 36c are connected to the suction passage forming portion 40. As shown in FIG. 1, the joint 36a is connected to the second nozzle 18, the joint 36b is connected to the first nozzle 10, and the joint 36c is not used. By connecting the joint 36 b to the first nozzle 10, the liquid from the suction flow path forming portion 40 is configured to be supplied to the first nozzle 10. By connecting the joint 36 a to the second nozzle 18, the liquid including the fine bubbles from the second nozzle 18 is configured to be supplied to the discharge flow path forming unit 38.

The discharge flow passage forming portion 38 is a tubular member that protrudes from the central portion of the joint body 34, and forms a discharge flow passage for discharging the liquid from the second nozzle 18 into the bath 4. The discharge flow path forming portion 38 is connected to the back side of the inner case 30 as shown in FIG. The discharge flow path of the discharge flow path forming unit 38 communicates with the discharge port 50 through the opening in the central portion of the inner case 30.

The atomizing nozzle 42 is provided between the discharge flow path forming portion 38 and the joint body 34. The miniaturization nozzle 42 is a member that forms a plurality of flow paths having a diameter smaller than the diameter of the discharge flow path forming unit 38, and serves as flow path resistance of the discharge flow path forming unit 38. By providing the miniaturization nozzle 42, the miniaturized bubbles flowing from the second nozzle 18 are further miniaturized. The joint section 8 including the miniaturization nozzle 42 functions as a miniaturization section together with the second nozzle 18 (second miniaturization section).

The suction flow passage forming portion 40 is a member that forms a flow passage through which the liquid sucked from the suction port 48 of the cover 20 passes. The suction flow passage forming portion 40 is provided radially outside the discharge flow passage forming portion 38. A suction passage is formed between the suction passage forming portion 40 and the discharge passage forming portion 38.

A packing 44 is provided on the outside in the radial direction of the suction flow passage forming portion 40. The packing 44 is sandwiched between the wall surface 46 of the bathtub 4 and the suction flow path forming portion 40. The packing 44 engages with the cover holder 32 inside the bathtub 4, and engages with the joint body 34 outside the bathtub 4.

The operation of making the bubbles fine by the fine bubble generator 2 having the above configuration will be described with reference to FIGS.

Before using the fine bubble generator 2, the user injects an additive liquid (for example, oil) into the additive liquid storage case 22. Specifically, the addition liquid storage case 22 separated from the cover 20 is prepared, and the relative rotation positions of the outer case 28 and the inner case 30 are set to the second rotation corresponding to the outflow state of the addition liquid. Rotate to position (FIG. 10E). In this state, the additive liquid is injected into the storage space S in the additive liquid storage case 22 from the through hole (in particular, the first through hole 52) of the inner case 30. After injecting the additive liquid, the outer case 28 and the inner case 30 are relatively rotated so as to reach the first rotation position (FIG. 10D) corresponding to the storage state of the additive liquid, so that the additive liquid does not flow out. To

After that, as described with reference to FIGS. 7A-7D, the two protrusions 30d of the inner case 30 are fitted into the two groove portions 26e of the inner cover 26 (at the same time, the lever 28e of the outer case 28 opens the cover 20). 24e, 26h). Further, when the additive liquid storage case 22 is fitted in the cover 20 and rotated by a predetermined angle in the circumferential direction, the claw portion 26f of the inner cover 26 is arranged in the notch 30g of the inner case 30, and the peripheral surface of the additive liquid storage case 22 is surrounded. Rotation in the direction is restricted. In this way, the additive liquid storage case 22 storing the additive liquid is fixed to the cover 20.

Further, the cover holder 32 is attached to the joint portion 8 attached to the wall surface 46 of the bathtub 4 via the packing 44, and the cover 20 and the additive liquid storage case 22 are attached to the cover holder 32. Specifically, as described with reference to FIGS. 11A to 11C, the protrusions 26i at the four positions of the inner cover 26 are inserted into the notches 32b of the cover holder 32 and are rotated in the circumferential direction to engage with the flange 32c. Are combined. As a result, as shown in FIGS. 12 and 13, the additive liquid storage case 22 is arranged between the cover 20 and the cover holder 32.

In this way, the additive liquid supply device 6 (the cover 20 and the additive liquid storage case 22) for supplying the additive liquid is detachably provided so as to form the suction port 48 and the discharge port 50, and communicates with the suction port 48. The additive liquid can be supplied to the liquid supply path. In particular, in this embodiment, since the cover 20 and the additive liquid storage case 22 are both detachably provided in the suction port of the bathtub 4, the user can easily set the additive liquid supply device 6.

Thereafter, with the inner case 30 of the additive liquid storage case 22 fixed to the inner cover 26 of the cover 20, the lever 28e of the outer case 28 is slid to rotate the outer case 28 together with the oil packing 29. As a result, the relative rotation positions of the outer case 28 and the inner case 30 in the additive liquid storage case 22 are changed from the first rotation position in the storage state to the second rotation position in the outflow state. In this way, the fine bubble generator 2 is operated in a state where the additive liquid can be supplied.

When the fine bubble generator 2 is operated, the circulation pump 14 shown in FIG. 14 is operated. The operation of the circulation pump 14 creates a flow in which the liquid circulates in the fine bubble generator 2. Specifically, the liquid in the bathtub 4 is sucked through the suction port 48 of the cover 20.

The liquid sucked from the suction port 48 flows toward the suction flow passage formed by the suction flow passage forming portion 40, as shown in FIG. 13. At this time, the through holes 52, 54, 56 of the inner case 30 are exposed toward the flow passage on the way to the suction flow passage. Since there is a pressure difference between the liquids flowing at the positions in contact with the respective through holes 52, 54, 56, the liquid flows in from a certain through hole (for example, the first through hole 52) and another through hole (for example, the second through hole). The addition liquid acts together with the liquid through the through hole 54 and the third through hole 56).

The additive liquid flowing out of the additive liquid storage case 22 is mixed with the liquid flowing toward the suction flow path. At this time, for example, if the added liquid is oil and hydrophobic, the mixed liquid is mixed with the liquid in a separated state, 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. 14, the air is injected from the air supply pipe 12, and the liquid and the additive liquid pass through the circulation pump 14 and reach the air dissolving tank 16. In the air dissolution tank 16, air (oxygen) is dissolved in the liquid by applying pressure. The liquid in which the air is dissolved flows into the second nozzle 18 together with the additive liquid.

In the second nozzle 18, the liquid and the additive liquid are released under the atmospheric pressure and foamed under reduced pressure, so that the dissolved air is made into fine bubbles. As the bubbles become finer, the oil that is the addition liquid also disperses, so that a liquid in which the oil is finely and evenly dispersed can be generated. When oil is used as the additive liquid, the oil plays a role of a lid for water when the user takes a bath, so that the water can be prevented from escaping from the skin.

The liquid containing the fine bubbles reaches the joint 36 a of the joint section 8. As shown in FIG. 13, the liquid containing fine bubbles and the additive liquid pass through the miniaturization nozzle 42 from the joint 36a. At this time, the fine bubbles further grow by passing through the plurality of small-diameter holes formed by the finer nozzle 42. Then, the liquid containing the fine bubbles and the additive liquid pass through the discharge flow passage in the discharge flow passage forming portion 38 and are discharged from the discharge port 50 into the bath 4.

As described above, the additive liquid supply device 6 of the present embodiment is a device for supplying the additive liquid to the liquid circulation channel in the bath 4. The circulation channel sucks the liquid in the bathtub 4 from the suction port 48 provided in the wall surface 46 of the bathtub 4, and discharges the sucked liquid from the suction port 48 so as to discharge the liquid from the discharge port 50 provided in the wall surface 46. It extends to the exit 50. The additive liquid supply device 6 includes a cover 20 and an additive liquid storage case 22. The additive liquid storage case 22 is a case that forms a storage space S for storing the additive liquid, has through holes 52, 54, 56 that communicate the storage space S with the outside (via the cover 20). ) It is detachably attached to the suction port of the bathtub 4. The cover 20 is detachably attached to the suction port of the bath 4 (via the holder 32) so as to at least partially cover the side of the additive liquid storage case 22 exposed in the bath 4.

According to such a configuration, the additive liquid storage case 22 is detachably attached to the suction port of the bathtub 4, so that the user can easily install the additive liquid storage case 22 and the suction port. It is possible to cause the additive liquid in the additive liquid storage case 22 to flow out by utilizing the suction pressure at. Further, by providing the cover 20 that covers the additive liquid storage case 22, the additive liquid storage case 22 can be protected from the outside. 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 case 22 is detachably attached to the cover 20 and detachably attached to the suction port of the bathtub 4 via the cover 20. As described above, the additive liquid storage case 22 is attached to the suction port through the cover 20 without directly attaching it to the suction port of the bathtub 4, so that the additive liquid storage case 22 is attached to the suction port with the cover 20 always attached. Can be ensured. Further, by configuring the additive liquid storage case 22 and the cover 20 separately, each can be cleaned independently. 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 case 22 is formed in an annular shape and is attached to the cover 20 by rotational fitting in the circumferential direction. As described above, by using the rotary fitting, it is possible to prevent the additive liquid storage case 22 from coming off easily even when an impact is applied from the outside.

In addition, in the additive liquid supply device 6 of the present embodiment, a claw portion that fixes the additive liquid storage case 22 that is rotationally fitted to the cover 20 at a fixed position that is rotated by a predetermined angle in the circumferential direction from the fitting start position with the cover 20. 26f (fixing mechanism) is further provided. Thus, by providing the claw portion 26f, the additive liquid storage case 22 can be more firmly fixed to the cover 20.

In addition, in the additive liquid supply device 6 of the present embodiment, the cover 20 includes the side surface 26b (side wall) that is circumferentially provided so as to face the side surface 30a (outer peripheral surface) of the annular additive liquid storage case 22. The claw portion 26f as a fixing mechanism is a protrusion that protrudes radially inward from the side surface 26b of the cover 20. A cutout 30g (recess) for accommodating the claw portion 26f is formed on the side surface 30a of the additive liquid storage case 22. As described above, the fixing mechanism is configured by the claw portion 26f as a protrusion, and the concave portion as the notch 30g is provided in the addition liquid storage case 22, whereby the rotation of the addition liquid storage case 22 can be restricted by a simple mechanism. it can.

Further, the present embodiment provides a fine bubble generating device 2 including the above-mentioned additive liquid supply device 6. The fine bubble generator 2 of the present embodiment includes an additive liquid supply device 6, an air dissolution tank 16 (mixing section), a second nozzle 18 and a joint section 8 (fineening section). The air dissolving tank 16 is provided in the circulation flow path and mixes air with the liquid sucked from the suction port 48 to dissolve the air in the liquid. The second nozzle 18 and the joint portion 8 are provided in the circulation flow path, and make the air dissolved in the liquid in the air dissolution tank 16 into fine bubbles. In such a configuration, the additive liquid storage case 22 of the additive liquid supply device 6 supplies the additive liquid to the upstream side (slightly downstream of the suction port 48 in the present embodiment) of the second nozzle 18 in the circulation passage. Be fixed as you do. In this way, by adding the additive liquid to the upstream side of the second nozzle 18 that is the atomizing portion, the additive liquid is dispersed in the liquid as the air in the second nozzle 18 and the joint portion 8 is atomized. Can be made Thereby, the liquid in which the additive liquid is more dispersed can be discharged to the bathtub 4, and the desired effect of the additive liquid can be exhibited in the bathtub 4 depending on the type of the additive liquid.

Here, further, in the present embodiment, when the additive liquid storage case 22 is rotationally fitted to the cover 20, a further device for ensuring a state in which the additive liquid is stored in the first rotation position is stored. The device will be described with reference to FIGS. 15A-15C.

FIG. 15A is a rear view of the inner cover 26 (cover 20). 15B and 15C are both rear views of the inner case 30 (additive solution storage case 22) attached to the inner cover 26.

The rotation positions of the two protrusions 30d of the inner case 30 shown in FIGS. 15B and 15C are the same as the rotation positions of the entrance portion (one end of the axial portion) of the groove portion 26e of the inner cover 26 shown in FIG. 15A. That is, the inner case 30 shown in FIGS. 15B and 15C is shown at the fitting start position where the rotation fitting with the cover 20 shown in FIG. 15A is started. 15B and 15C, the lever 28e of the outer case 28 is illustrated by a dotted line, and the opening 26h of the inner cover 26 that faces the outer case 28 is illustrated by a dashed line.

The additive liquid storage case 22 of FIG. 15B corresponds to the first rotation position for storing the addition liquid, and the addition liquid storage case 22 of FIG. 15C corresponds to the second rotation position for the addition liquid to flow out.

As shown in FIG. 15B, when the additive liquid storage case 22 is in the first rotation position, the lever 28e is arranged at a position facing the opening 26h. This allows the lever 28e to pass through the opening 26h. In the first rotation position, the additive liquid storage case 22 can start rotational fitting with the cover 20.

On the other hand, as shown in FIG. 15C, when the additive liquid storage case 22 is in the second rotation position, the relative rotation positions of the protrusion 30d and the lever 28e are changed as compared with the first rotation position. There is. The lever 28e of FIG. 15C rotated counterclockwise by a predetermined angle from the rotation position shown in FIG. 15B is arranged at a position that does not face the opening 26h but faces the back surface 26j of the inner cover 26 excluding the opening 26h. Therefore, in the second rotation position, the lever 28e cannot pass through the opening 26h, and the addition liquid storage case 22 cannot start the rotational fitting with the cover 20.

According to such a configuration, the rotational fitting with the cover 20 can be started only when the additive liquid storage case 22 is at the first rotation position for storing the additive liquid. Thereby, it is possible to ensure that the additive liquid storage case 22 is attached to the cover 20 in a state where the additive liquid does not flow out, and the additive liquid can be effectively used.

As described above, the additive liquid storage case 22 includes the outer case 28 and the inner case 30. The inner case 30 is a fixed portion that forms the through holes 52, 54, 56 and is fixed to the cover 20. The outer case 28 is rotatably attached to the inner case 30 so as to form the storage space S together with the inner case 30, and the first rotation position for closing the through holes 52, 54, 56 and the through holes 52, 54, 56. Is a rotating portion that rotates between a second rotational position for opening. The outer case 28 is provided with a lever 28e protruding toward an opening 26h provided on the surface of the cover 20. According to such a configuration, the opening/closing mechanism for opening/closing the through holes 52, 54, 56 is configured by the lever 28e, so that the user can easily supply/store the additive liquid by sliding the lever 28e. It becomes possible to switch.

Further, at the fitting start position where the additive liquid storage case 22 starts fitting with the cover 20, the lever 28e at the first rotation position is arranged at a position facing the opening 26h of the cover 20 (FIG. 15B). On the other hand, the lever 28e in the second rotation position is arranged at a position facing the front surface (back surface 26j) of the cover 20 excluding the opening 26h (FIG. 15C). According to such a configuration, the lever 28e is configured to be able to pass through the opening 26h of the cover 20 only at the first rotation position where the through holes 52, 54, 56 are closed, thereby ensuring a state in which the additive liquid does not leak. On the other hand, the configuration in which the additive liquid storage case 22 can be attached to the cover 20 can be realized by a simple mechanism. Thereby, the additive liquid can be effectively used.

Here, in this embodiment, further ingenuity is made to prevent the additive liquid supply device 6 from accidentally coming off during use. The device will be described with reference to FIGS. 16 and 17.

FIG. 16 is a perspective view of the additive liquid supply device 6 and the joint portion 8. FIG. 17 is a rear view of the additive liquid supply device 6.

As shown in FIG. 16, when the additive liquid supply device 6 having the additive liquid storage case 22 (FIG. 17) is attached to the cover holder 32 fixed to the joint portion 8, the additive liquid supply device 6 is used. This is performed by rotationally fitting the cover holder 32 (see FIGS. 11A-11C). Due to the positional relationship between the notch 32b and the flange 32c in the cover holder 32 shown in FIG. 11B, the rotation direction D1 for attaching the additive liquid supply device 6 to the cover holder 32 and the rotation for removing the additive liquid supply device 6 as shown in FIG. The direction D2 is predetermined. The rotation direction D1 and the rotation direction D2 are opposite to each other.

On the other hand, the rotation direction of the lever 28e exposed from the openings 24e and 26h of the cover 20 is also predetermined. In the present embodiment, the rotation direction D3 of the lever 28e that moves from the first rotation position corresponding to the storage state to the second rotation position corresponding to the outflow state is the rotation direction D2 for removing the above-described additive liquid supply device 6. Is set in the opposite direction.

When using the additive liquid supply device 6, first, the additive liquid supply device 6 in the first rotation position (stored state) is attached to the cover holder 32, and then the second rotation position (outflow state). Slide the lever 28e in the same manner. Here, since the rotation direction D3 of the lever 28e described above is set in the opposite direction to the rotation direction D2 for removing the addition liquid supply device 6, the sliding movement of the lever 28e is the rotation when the addition liquid supply device 6 is removed. It acts as a rotational force in the direction opposite to the direction D2. As a result, it is possible to prevent the additive liquid supply device 6 from being unintentionally removed during use, and it is possible to improve user convenience.

In the present embodiment, further, as shown in FIG. 17, a rotation center axis C1 when the addition liquid supply device 6 is rotationally fitted to the cover holder 32 and a rotation center axis C2 when the lever 28e (protrusion 28g) slides. It is arranged by shifting.

With this arrangement, for example, at the position of the protrusion 28g exposed from the through hole 30f of the additive liquid storage case 22, the tangential direction T1 corresponding to the rotation center axis C1 is the tangential direction T2 corresponding to the rotation center axis C2. Have different orientations. The external force F generated by the sliding operation of the lever 28e (projection 28g) is directed in the tangential direction T2 about the rotation center axis C2. On the other hand, when the external force F acts on the entire additive liquid supply device 6 as a rotational force, it acts as a rotational force along the tangential direction T1 about the rotation center axis C1. That is, the external force F is dispersed into a component in the tangential direction T1 and a component in the axial direction A1 perpendicular to the tangential direction T1.

With such a configuration, even when the lever 28e is rotated in the rotation direction D4 opposite to the rotation direction D3 shown in FIG. 16, the rotation direction D4 of the lever 28e covers the additive liquid supply device 6. It does not completely coincide with the rotation direction D2 when it is removed from the holder 32. This makes it possible to prevent the additive liquid supply device 6 from coming off easily not only when the lever 28e is rotated in the rotation direction D3 but also when it is rotated in the rotation direction D4.

The positional relationship between the rotation center axes C1 and C2 as shown in FIG. 17 can be realized by setting the shape of the through hole 30f that accommodates the protrusion 28g to a predetermined arc shape. Specifically, the opening may be formed by setting the center of the circular arc in the through hole 30f to the rotation center axis C2 which is deviated from the rotation center axis C1.

In this embodiment, as described above, the additive liquid storage case 22 is detachably attached to the cover 20 and is detachably attached to the suction port via the cover 20. Therefore, the rotation center axis C1 of the addition liquid supply device 6 is common as the rotation center axis C1 of the cover 20 and the addition liquid storage case 22.

As described above, the additive liquid supply device 6 of the present embodiment is a device for supplying the additive liquid to the circulation passage extending from the suction port 48 to the discharge port 50. The additive liquid supply device 6 includes an additive liquid storage case 22. The additive liquid storage case 22 is a case that forms a storage space S for storing the additive liquid, has through holes 52, 54, 56 that communicate the storage space S and the outside, and (with the cover 20) a bathtub. It is removably attached to the suction port of No. 4 by rotary fitting. The additive liquid storage case 22 includes a lever 28e (opening/closing mechanism) that opens and closes the through holes 52, 54, 56 in a sliding manner. In the state where the additive liquid storage case 22 is attached to the suction port, the sliding movement of the lever 28e from the position where the through holes 52, 54 and 56 are closed (the first rotation position) to the position where the through holes 52, 54 and 56 are opened (the second rotation position) is prevented. , Acting as a rotational force in the direction opposite to the rotational direction D2 for removing the additive liquid storage case 22 from the suction port.

With this configuration, when the additive liquid storage case 22 is attached to the suction port and then slide-operated to open the through holes 52, 54, 56 of the additive liquid storage case 22, the additive liquid storage case is slid by the slide operation. 22 can be configured so as not to come off the suction port. This can improve the convenience of the user.

In addition, in the additive supply device 6 of the present embodiment, the additive storage case 22 is formed in an annular shape, and the lever 28e is a mechanism that rotates in the circumferential direction of the additive storage case 22 and slides. The rotation direction D3 in which the lever 28e opens the through holes 52, 54, 56 is opposite to the rotation direction D2 in which the additive liquid storage case 22 is removed from the suction port. As described above, by forming the lever 28e as a rotary slide mechanism, a force is easily applied to the attachment and detachment of the additive liquid storage case 22 by the sliding operation of the lever 28e. On the other hand, as described above, the sliding operation for opening the through holes 52, 54, 56 of the lever 28e is configured to act in the direction opposite to the rotational direction for removing the additive liquid storage case 22 from the suction port. It is possible to effectively prevent the additive liquid storage case 22 from coming off.

In addition, in the added liquid supply device 6 of the present embodiment, the rotation center axis C2 of the lever 28e is arranged at a position deviated from the rotation center axis C1 when the addition liquid storage case 22 is attached to the suction port. By setting in this way, even when performing a sliding operation to close the through holes 52, 54, 56 of the additive liquid storage case 22, it is possible to make the additive liquid storage case 22 difficult to come off from the suction port by the sliding operation. ..

In addition, in the additive liquid supply device 6 of the present embodiment, the additive liquid storage case 22 is detachably attached to the suction port by rotary fitting so as to at least partially cover the side exposed in the bath 4. The cover 20 is further provided. Further, the additive liquid storage case 22 is detachably attached to the cover 20 and is detachably attached to the suction port through the cover 20. Further, the rotation center axis when the cover 20 is attached to the suction port coincides with the rotation center axis when the additive liquid storage case 22 attached to the cover 20 is attached to the suction port. As described above, the additive liquid storage case 22 is attached to the suction port through the cover 20 without directly attaching it to the suction port of the bathtub 4, so that the additive liquid storage case 22 is attached to the suction port with the cover 20 always attached. Can be ensured. Further, by configuring the additive liquid storage case 22 and the cover 20 separately, each can be cleaned independently. In this way, the convenience of the user can be improved.

In addition, in the additive supply device 6 of the present embodiment, the rotation center axis C2 of the lever 28e (opening/closing mechanism) in the addition solution storage case 22 attached to the cover 20 is displaced from the rotation center axis C1 of the cover 20. It is located in. With this arrangement, the rotation center axis C2 of the lever 28e is arranged at a position displaced from the rotation center axis C1 when the additive liquid storage case 22 is attached to the suction port. With such a configuration, it is possible to realize a configuration that makes it difficult for the additive liquid storage case 22 to come off from the suction port with a simple mechanism.

Although the present invention has been described with reference to the above embodiment, the present invention is not limited to the above embodiment. For example, although the embodiment has described the case where the suction port 48 is integrally formed around the discharge port 50, the present invention is not limited to such a case. The discharge port 50 and the suction port 48 may be separately provided at arbitrary positions in the bathtub 4.

Further, in the embodiment, the case where the added liquid is oil has been described, but it may be any liquid such as another hydrophobic liquid or a hydrophilic alcohol.

Further, in the embodiment, the case where three through holes 52, 54 and 56 for discharging the additive liquid in the additive liquid storage case 22 are provided has been described. Any configuration may be adopted as long as it is possible. For example, two or four or more through holes may be provided.

Further, in the embodiment, the combination of the protrusion and the flange and the combination of the protrusion and the groove are illustrated as the mechanism for fitting the two members, but the mechanism is not limited to such a configuration. Any configuration may be adopted as long as the two members are fitted together, and for example, the combination of the protrusion and the groove in the embodiment may be reversed. That is, it is possible to fit the two members even if the member forming the protrusion is provided with a groove instead of the protrusion and the member forming the groove is provided with a protrusion instead of the groove.

Further, in the embodiment, the case where the additive liquid storage case 22 is attached to the cover 20 has been described, but the present invention is not limited to such a case, and for example, the addition liquid storage case 22 is not attached to the cover 20 and the suction port side (for example, the cover holder). 32) may be directly attached. Even in such a case, by providing both the cover 20 and the additive liquid storage case 22 at the suction port of the bathtub 4 in a removable manner, it is possible to improve the convenience for the user when setting the additive liquid supply device 6. it can.

Further, in the embodiment, the case where the additive liquid storage case 22 is detachably attached to the cover 20 has been described, but the present invention is not limited to such a case, and the additive liquid storage case 22 may be integrally formed with the cover 20, for example. Good. When the additive liquid storage case 22 is formed integrally with the cover 20, it is possible to prevent forgetting to attach the additive liquid storage case 22. On the other hand, when the additive liquid storage case 22 is detachably provided on the cover 20, the additive liquid storage case 22 and the cover 20 can be individually cleaned.

Further, in the embodiment, the case where the cover 20 and the additive liquid storage case 22 are formed in an annular shape has been described, but the case is not limited to such a case. The cover 20 and the additive liquid storage case 22 may have a shape other than a ring shape (for example, a prism shape having an opening at the center). Since the cover 20 is a portion exposed in the bathtub 4, it is possible to further improve comfort and safety by forming the cover 20 into an annular shape having a smooth outer shape as shown in FIG. 4A and the like.

Further, in the embodiment, the case where the additive liquid storage case 22 is attached to the cover 20 by rotational fitting in the circumferential direction has been described, but the case is not limited to such a case. Instead of rotational fitting in the circumferential direction, the fitting may be performed only by pushing in the axial direction, for example. In the case of rotational fitting in the circumferential direction, for example, when an external force in a direction other than the circumferential direction (an external force in the axial direction or the radial direction) is applied, the additive liquid storage case 22 may not easily come off from the cover 20. it can.

Further, in the embodiment, the case where the claw portion 26f is provided as the fixing mechanism for fixing the additive liquid storage case 22 to the cover 20 has been described, but the present invention is not limited to such a case, and the case where the fixing mechanism is not provided is provided. May be. Further, as the fixing mechanism, the case where the claw portion 26f is provided on the side surface 26b of the inner cover 26 and the notch 30g is provided on the side surface 30a of the inner case 30 corresponding to the claw portion 26f has been described, but it is not limited to such a case. Absent. Any configuration may be adopted as long as the additive liquid storage case 22 can be fixed at a fixing position rotated in the circumferential direction from the fitting start position with the cover 20.

Further, in the embodiment, the case where the lever 28e is a rotary slide mechanism has been described, but the present invention is not limited to such a case, and a slide mechanism that moves linearly may be used. Even in such a case, the sliding movement of the lever from the position where the through holes 52, 54, 56 that communicate the storage space S and the external space are closed to the position where the through holes 52, 54, 56 are opened, the addition liquid supply device 6 is sucked (cover holder). The same effect can be obtained by acting as a rotational force in the direction opposite to the rotational direction D2 removed from 32).

Further, in the embodiment, the case has been described in which the rotation center axis C2 of the lever 28e and the rotation center axis C1 when the addition liquid supply device 6 is attached to and detached from the suction port are arranged at positions displaced from each other. However, they may be matched.

Further, in the embodiment, the additive liquid supply device 6 having the device described in FIGS. 15A to 15C and the device described in FIGS. 16 and 17 at the same time has been described, but the invention is not limited to such a case. The additive liquid supply device may be provided with each device independently. The same applies to other features and devices.

By properly combining the arbitrary embodiments of the aforementioned various embodiments, the effects possessed by them can be produced.

2 Micro Bubble Generator 4 Bath 6 Additive Supply Device 8 Joint 10 First Nozzle 12 Air Supply Pipe 14 Circulation Pump 16 Air Dissolution Tank 18 Second Nozzle 20 Cover 22 Additive Storage Case (Detachable Member)
24 Outer Cover 24b Side 24c Projection 24d Surface 24e Opening 26 Inner Cover 26a Opening 26b Side 26c Projection 26d Inner Edge Projection 26e Groove 26f Claw (Fixing Mechanism)
26j Rear surface 26h Opening 26i Projection 26g Front surface 26k Opening 28 Outer case 28a Groove 28b Notch (recess)
28c flange 28d front surface 28e lever 28k opening 28p back surface 28q protrusion 29 oil packing 29a back surface 29b first through hole 29c second through hole 29d third through hole 29h recess 30 inner case 30a surface 30b projection 30c inner edge protruding portion 30d projection 30e Back surface 30f Through hole 30g Notch 30h Surface 32 Cover holder 32a Surface 32b Notch 32c Flange 34 Joint body 36a, 36b, 36c Joint 40 Suction flow path forming member 42 Fine nozzle 44 Packing 46 Wall surface 48 Suction port 50 Discharge port 52 First through hole 54 Second through hole 56 Third through hole C1, C2 Rotation center axes D1, D2, D3, D4 Rotation directions T1, T2 Tangent direction F External force

Claims (6)

The liquid added to the circulation passage extending from the suction port to the discharge port so that the liquid in the bathtub is sucked from the suction port provided on the wall surface of the bathtub and the sucked liquid is discharged from the discharge port provided on the wall surface. An additive liquid supply device for supplying
A case that forms a storage space for storing an additive liquid, the additive liquid having a through hole that communicates the storage space with the outside and detachably attached to the suction port by a rotary fitting. With a storage case,
The additive liquid storage case includes an opening/closing mechanism that opens and closes the through hole in a sliding manner,
In the state where the additive storage case is attached to the suction port, the sliding movement of the opening/closing mechanism from the position where the through hole is closed to the position where the opening is a rotational direction for removing the addition liquid storage case from the suction port is An additive supply device that acts as a rotational force in the opposite direction. The addition liquid storage case is formed in an annular shape, the opening and closing mechanism is a mechanism that rotates and slides in the circumferential direction of the addition liquid storage case,
The additive liquid supply device according to claim 1, wherein a rotation direction in which the opening/closing mechanism opens the through hole is opposite to a rotation direction in which the additive liquid storage case is removed from the suction port. The additive liquid supply device according to claim 2, wherein the rotation center axis of the opening/closing mechanism is arranged at a position deviated from the rotation center axis when the additive solution storage case is attached to the suction port. A cover removably attached to the suction port by rotational fitting so as to at least partially cover the side exposed in the bath in the additive liquid storage case,
The additive liquid storage case is detachably attached to the cover, and is detachably attached to the suction port through the cover,
The central axis of rotation when the cover is attached to the suction port coincides with the central axis of rotation when the additive liquid storage case attached to the cover is attached to the suction port. Additive supply device. The additive liquid storage case is attached to the suction port by disposing the rotation center axis of the opening/closing mechanism in the addition liquid storage case attached to the cover at a position displaced from the rotation center axis of the cover. The additive liquid supply device according to claim 4, wherein the additive liquid supply device is arranged at a position deviated from a central axis of rotation when the additive is supplied. The additive liquid supply device according to any one of claims 1 to 5,
A mixing unit provided in the circulation flow path, which mixes air with the liquid sucked from the suction port to dissolve the air in the liquid,
A fine bubble generation device, comprising: a finely-divided portion which is provided in the circulation channel and which makes air dissolved in the liquid in the mixing portion into fine bubbles,
The microbubble generating device, wherein the additive liquid storage case of the additive liquid supply device is fixed so as to supply the additive liquid to the micronized portion or an upstream side of the micronized portion in the circulation channel.

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