JP6362389B2 - Bathtub adapter - Google Patents

Description

  The present invention relates to a hot water inlet adapter for a bathtub in which a mechanism for generating fine bubbles such as microbubbles is incorporated.

  In recent years, bathing methods in which microbubbles (including nanobubbles), which are fine bubbles with a diameter of several tens of μm or less, are bathed in hot water in a bath, have a bathing effect, a massage effect, a dieting effect, a relaxing effect, etc. A lot of reports have been received and noticed.

  As a device for generating microbubbles in a bathtub, for example, a chasing device with a microbubble generating function shown in Patent Document 1 is well known.

  This memorial device includes a hot water outlet adapter installed in the bathtub, an outdoor water heater installed outdoors, and a circulation path for circulating hot water between the hot water adapter and the outdoor water heater. After the hot water is sucked into the outdoor water heater and heated, the hot water is circulated so that the hot water is discharged from the hot water inlet adapter into the bathtub, thereby performing the memorial process. In addition, a bubble jet nozzle is built into the hot water supply adapter, and if necessary, hot water mixed with micro bubbles from the bubble jet nozzle (micro bubble water) is jetted into the bathtub, and micro bubbles are put into the bathtub. Is generated.

  Such a bubble generator (hot water supply adapter) is provided with an intake tube for supplying air (outside air) for generating microbubbles to the adapter. One end of the intake tube is connected to a bubble generating nozzle of a hot water supply adapter, and the air intake portion at the other end is installed outside an outdoor water heater or the like. Then, outdoor air taken in from the other end of the intake tube is supplied into the adapter through the intake tube, and the air is mixed into the hot water as microbubbles in the adapter, and the microbubble water spouts into the bathtub. It has come to be.

Japanese Patent No. 4887055

  However, since the conventional hot water inlet adapter as shown in Patent Document 1 usually has the air intake portion at the other end of the intake tube arranged outside the room such as outdoors, cold outdoor air (cold air) is taken in. Microbubble water that has been taken into the tube and mixed with microbubbles from the cold air will be ejected into the bathtub. For this reason, there existed a possibility that the water temperature in a bathtub might fall.

  Furthermore, if the air intake part of the intake tube is located outdoors, dust and odor are also taken in from the air intake part together with the air and discharged into the bathtub. There was also a problem that an unpleasant odor drifted inside, and a comfortable bathing environment could not be obtained.

  In addition, in the conventional hot water inlet adapter, since the intake tube is constructed under the floor or behind the wall so that many portions of the intake tube are not exposed and the length of the intake tube becomes longer, it is difficult to install the intake tube itself. In addition, there was a problem that maintenance and inspection were difficult, and repair and replacement at the time of failure were troublesome.

  In addition, in a conventional hot water supply adapter, hot water in the bathtub flows from the bubble generating nozzle and flows backward through the intake tube, and is discharged from the other end (air intake portion) of the intake tube to the outside. If it does so, the subject that the discharge part periphery of hot water will be contaminated with a water | moisture content and humidity also has the subject.

  The present invention has been made in view of the above problems, and can prevent the discharge of cold air into the bathtub, contamination of the bathroom due to dust and odors, and problems during backflow of hot water and water, and maintenance and inspection of the intake tube. It is an object of the present invention to provide a hot water inlet adapter with a microbubble generating function that is easy to repair and replace.

  In order to achieve the above object, the present invention has the following structure.

[1] An adapter main body having an in-tank arrangement portion arranged in a bathtub, a bubble generator incorporated in the adapter main body, and provided in the adapter main body for introducing air into the bubble generator An intake circuit and an intake tube having one end connected to the intake circuit, and air taken in from the other end of the intake tube is introduced into the bubble generator via the intake tube and the intake circuit Based on the air, it is a hot water outlet adapter that generates micro bubble water mixed with hot water by the bubble generator and jets it into the bathtub,
A tube connection port that is a connection port with one end of the intake tube in the intake circuit is disposed on the outer surface of the in-tank arrangement portion,
A hot water inlet adapter, wherein the other end of the intake tube is disposed in a bathroom.

  [2] The hot water inlet adapter for bathtubs according to the preceding item 1, wherein one end of the intake tube is detachably attached to the tube connection port.

  [3] The hot water inlet adapter for a bathtub according to the preceding item 1 or 2, wherein the tube connection port is arranged on a peripheral side wall in the placement portion in the tank.

  [4] The bathtub hot water supply adapter according to any one of items 1 to 3, wherein an attachment means for detachably attaching the other end to a wall surface in the bathroom is provided at the other end of the intake tube.

[5] A switching lever that is switchable between a bubble generation mode that allows the generation of microbubble water by the bubble generator and a bubble prohibition mode that prohibits the generation of microbubbles on the front surface of the placement section in the tank. Is provided,
The switching lever is disposed at a position corresponding to the tube connection port in the bubble generation mode, and is disposed at a position not corresponding to the tube connection port in the bubble prohibition mode. The hot water inlet adapter for bathtubs as described in any one of Claims.

[6] A controller is provided at the other end of the intake tube,
The controller includes an operation unit and an air intake amount variable mechanism for changing an intake amount of air taken from the other end of the intake tube,
6. For a bathtub according to any one of the preceding items 1 to 5, wherein an air intake amount to the intake tube is adjusted by the air intake amount variable mechanism based on an operation of the operation unit. Water heater adapter.

  [7] The bathtub hot water supply adapter according to [6], wherein the operation unit is configured by a dial that can be freely rotated.

  [8] The bathtub hot-water supply adapter according to item 6 or 7, wherein the operation unit is configured to be switchable between a state where the operation force is transmitted to the air intake amount variable mechanism and a state where the operation force is not transmitted. .

  According to the hot water inlet adapter for bathtubs of the invention [1], since the other end forming the air intake portion of the intake tube is arranged in the bathroom, the warm air in the bathroom can be taken in as microbubble air. Moreover, the temperature fall of the bath water by taking in cold air can be prevented. Furthermore, dust and odors such as outdoors are not taken in from the intake tube, and contamination by dust and odors can be effectively prevented, and a comfortable bathing environment can be obtained. In addition, since the intake tube can be placed in an exposed state in the bathroom, the intake tube can be easily installed, maintenance and inspection are easy, and repair and replacement at the time of failure can be easily performed. Furthermore, even if the hot water in the bathtub flows back through the intake tube and is discharged from the other end, the discharged water is only discharged into the bathroom, and no problem occurs.

  According to the hot water inlet adapter for bathtubs of the invention [2], the intake tube can be removed from the adapter body when it is not necessary, such as when taking a bath. For example, the bathtub can be cleaned without worrying about the presence of the intake tube. It can be carried out.

  According to the hot water inlet adapter for bathtubs of the invention [3], the intake tube can be placed along the inner wall surface of the bathtub so as to be well placed and a good aesthetic appearance can be obtained.

  According to the hot water inlet adapter for bathtubs of the invention [4], the other end of the intake tube can be attached to a desired position in the bathroom, and it is easy to use and can improve versatility.

  According to the hot water outlet adapter for bathtubs of the invention [5], the user can easily and accurately grasp the position where the switching lever can be set to generate microbubbles, and ensure that the operation lever is not operated erroneously. Can be prevented.

  According to the hot water inlet adapter for bathtubs of the invention [6], since the amount of air taken in can be adjusted, an appropriate amount of microbubbles can be generated in the bathtub according to the preference of the bather.

  According to the hot water inlet adapter for bathtubs of the invention [7], the amount of air taken in can be easily adjusted by a dial operation.

  According to the hot water inlet adapter for bathtubs of the invention [8], if it is set to an inoperable state, the air intake amount fluctuates due to mischief of children, contact with the unconscious operation part by the bather, etc. Therefore, unexpected fluctuations in the amount of bubbles generated in the bathtub can be reliably prevented.

FIG. 1 is a perspective view showing the vicinity of a bathtub to which a hot water inlet adapter for bathtubs according to an embodiment of the present invention is attached. FIG. 2 is an exploded perspective view showing the hot water supply adapter according to the embodiment. Drawing 3 is a front sectional view showing the hot-water supply adapter of an embodiment. FIG. 4 is a side sectional view showing the hot water supply adapter according to the embodiment. FIG. 5 is an exploded side cross-sectional view of the hot water supply adapter according to the embodiment. FIG. 6 is a front view showing a partition member with a filter member in the hot water supply port adapter of the embodiment. FIG. 7 is a bottom view showing the partition member with the feed filter member of the embodiment. FIG. 8 is a front view illustrating a partition member in the hot water supply adapter according to the embodiment. FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 8 and corresponds to a side cross-sectional view taken along the suction chamber of the partition member of the embodiment. FIG. 10 is a view showing an intake unit applied to the hot water supply adapter according to the embodiment, in which FIG. 10 (a) is a perspective view and FIG. 10 (b) is a bottom view. FIG. 11 is a front view showing an intake unit of a modification of the hot water supply adapter according to the present invention in an operation-permitted state. FIG. 12 is a front view showing the modified intake unit in an inoperable state. FIG. 13 is a side view showing a dial applied to the intake unit of the modification.

  FIG. 1 is a perspective view showing the periphery of a bathtub T in which a hot water supply adapter P according to an embodiment of the present invention is constructed. As shown in the figure, the hot water supply adapter P of the present embodiment has a bubble generating function, and hot water treatment for supplying hot water supplied from an outdoor water heater into the bathtub T, hot water in the bathtub. In addition to the memorial process to reheat and return hot hot water to the bathtub, the hot water in the bathtub is mixed with microbubbles (including nanobubbles). Bubble generation processing for generating microbubbles in the bathtub by ejecting bubble water) can be performed.

  In the present specification, the inner side (left side in FIG. 6) with respect to the bathtub along the axial direction of the hot water supply adapter P is defined as the “front side” or the “front side” and the outer side with respect to the bathtub T (FIG. 6). The right side) will be described as “rear side” or “back side”.

  2-7 is a figure for demonstrating the hot water supply port adapter P of embodiment. As shown in FIGS. 1-7, the hot-water supply adapter P of this embodiment is assembled | attached to the attachment hole H (refer FIG. 4) provided in the wall part W of the bathtub T. As shown in FIG. The hot water supply adapter P includes an adapter main body 10, a filter member (cover member) 9 detachably attached to the in-tank arrangement portion 4 of the adapter main body 10, and an intake air for supplying air (outside air) to the adapter main body 10. The device 7 is provided as a basic component.

  The adapter main body 10 includes an outside tank attachment member 1, a male screw member 2, and a partition member 3. In other words, in the present embodiment, the adapter body 10 does not include the intake device 7 and the filter member 9.

  As shown in FIGS. 2, 4, 5, and the like, the outside-tubing attachment member 1 includes a cylindrical outer cylinder portion 12 whose front side is open and whose rear side is closed, and a coaxial core within the outer cylinder portion 12. A cylindrical inner tube portion 11 disposed on the upper surface, a flat plate ring-shaped flange portion 15 provided on the outer periphery of the front end of the outer tube portion 12, and a tubular forward tube provided on the rear end blocking wall of the outer tube portion 12. It has the connection part 1a and the return pipe connection part 1b.

  The inner space of the inner cylinder portion 11 is configured as a part of a forward circuit A described later, and the annular space between the inner cylinder portion 11 and the outer cylinder portion 12 is configured as a part of a return circuit B described later. Yes. In this outside-tub attachment member 1, the forward pipe connecting portion 1 a communicates with the internal space of the inner cylindrical portion 11 as the outgoing circuit A, and the return pipe connecting portion 1 b includes the inner cylindrical portion 11 as the return circuit B and the outer tube It communicates with the annular space between the cylindrical portions 12.

  A female screw for screwing and fixing the male screw member 2 is engraved on the inner peripheral surface of the front portion of the outer cylinder portion 12.

  The male screw member 2 has a cylindrical shape in which both front and rear ends are open, and a flat ring-shaped flange portion 25 is integrally formed on the outer periphery of the front end.

  A male screw is engraved on the outer peripheral side surface of the male screw member 2 so as to correspond to the female screw of the outer cylinder portion 12 in the outer tank mounting member 1.

  And the flange part 15 of the external attachment member 1 is arrange | positioned so that the peripheral part of the attachment hole H in a bath outer wall surface may be followed, and the flange part 25 of the external thread member 2 is the periphery of the attachment hole H in a bathtub inner wall surface. The male screw member 2 is screwed into the outer tube portion 12 of the outside-tubing attachment member 1 through the attachment hole H of the bathtub wall portion W so as to be pressed against the portion. Thereby, the peripheral part of the attachment hole H in the bathtub wall part W is clamped by the flange parts 15 and 25 of both the members 1 and 2, and both the members 1 and 2 are assembled | attached to the bathtub wall part W in the penetration state.

  As shown in FIGS. 4 and 5, the partition member 3 includes a cylindrical cylindrical portion 30 extending in the axial direction (front-rear direction), and a substantially disk shape or a substantially drum shape provided at the front end portion of the cylindrical portion 30. The tank arrangement | positioning part 4 is provided.

  The partition member 3 is fixed to the outside tank attachment member 1 and the female screw member 2 fixed to the bathtub wall W. That is, in the state in which the cylindrical portion 30 of the partition member 3 is inserted into the male screw member 2 and connected to the inner cylinder portion 11 of the outside-tubing attachment member 1, the back side of the partition member 3 in the tank placement portion 4 is the male screw member 2. It is fixed to the flange portion 25.

  In this assembled state, the inside of the cylindrical portion 30 of the partition member 3 is connected to the inside of the inner cylinder portion 11 of the outside-tubing attachment member 1. Further, the annular space between the cylindrical portion 30 and the male screw member 2 is connected in communication with the annular space between the inner cylindrical portion 11 and the outer cylindrical portion 12 of the outer tank attachment member 1.

  Here, in the present embodiment, the forward circuit A is configured by the inner side of the inner cylinder portion 11 of the outside-tubing attachment member 1 and the cylindrical portion 30 of the partition member 3. Further, a return circuit B is constituted by the annular space between the inner cylinder part 11 and the outer cylinder part 12 of the in-tank attachment member 1 and the annular space between the cylinder part 30 and the male screw member 2.

  A discharge chamber 41 (see FIG. 3) is formed on one side (left side) of the partition member 3 inside the tank placement portion 4 and the other side (right side) inside the tank placement portion 4. A suction chamber 42 (see FIG. 4 and FIG. 5) is formed.

  A first discharge port 41a and a second discharge port 42a are formed on both sides of the lower part of the peripheral side wall in the in-tank arrangement portion 4 of the partition member 3 (see FIG. 7). The discharge chamber 41 communicates (opens) in the bathtub through the first discharge port 41a, and the suction chamber 42 communicates (opens) in the bathtub through the second discharge port 42a. Further, as shown in FIG. 8, a front chamber 44 communicating with the suction chamber 42 is provided in front of the suction chamber 42 in the in-tank arrangement portion 4, and the front chamber 44 is provided on the front wall of the in-tank arrangement portion 4. Correspondingly, a suction port 42b constituted by a large number of small holes is formed. The suction chamber 42 is communicated (opened) into the bathtub via the suction port 42 b and the front chamber 44.

  In the suction chamber 42, a discharge valve 4 a is installed corresponding to the second discharge port 42 a, and a suction valve 4 b is installed in a communication portion between the suction chamber 42 and the front chamber 44. The discharge valve 4 a is configured by a check valve that allows hot water to be discharged from the suction chamber 42 into the bathtub and prohibits the suction of hot water from the bathtub to the suction chamber 42. The suction valve 4b is a check valve that allows hot water to be sucked into the suction chamber 42 from the front chamber 44 side (tub side) and prohibits hot water discharge from the suction chamber 42 to the front chamber 44 side (tub side). It is configured.

  A bubble generation nozzle 5 as a bubble generator is attached to the in-tank arrangement portion 4 of the partition member 3. The bubble generating nozzle 5 is provided with a bubble outlet 50 at the tip, and is arranged so that the bubble outlet 50 protrudes forward.

  The suction chamber 42 and the return circuit B in the partition member 3 are in communication. And at the time of chasing and bubble generation described later, the hot water in the bathtub is taken into the suction chamber 42 through the suction port 42b, passes through the return circuit B, and the return pipe connecting portion 1a of the outside mounting member 1 It is supposed to be leaked from.

  As shown in FIGS. 4 and 5, the discharge chamber 41 and the forward circuit A in the partition member 3 communicate with each other via a switching valve 45, and the bubble generation nozzle 5 and the forward circuit A communicate with each other via the switching valve 45. Communicated. When the switching valve 45 is switched, a chasing / hot water mode (bubble prohibiting mode) in which the discharge chamber 41 and the forward circuit A are communicated with each other, and a bubble generating mode in which the bubble generating nozzle 5 and the forward circuit A are communicated with each other. One of the two modes can be selectively set.

  In the present embodiment, in the remedy / hot water mode, the hot water introduced into the outgoing circuit A from the outgoing pipe connection portion 1a of the outside mounting member 1 is introduced into the discharge chamber 41 through the outgoing circuit A. It is discharged into the bathtub from one discharge port 41a. In the memorial / hot water mode, hot water is not introduced into the valve generating nozzle 5 from the outgoing circuit A.

  In the bubble generation mode, hot water introduced into the forward circuit A from the forward pipe connecting portion 1a of the outside-tubing attachment member 1 is introduced into the bubble generation nozzle 5 through the forward circuit A. In this bubble generation mode, hot water is not introduced into the discharge chamber 41 from the forward circuit A.

  On the other hand, a switching lever 55 for switching the switching valve 45 is provided on an upper side (upper left side) on the front side of the partition member 3. The switching lever 55 has a position corresponding to the upper end as shown in FIG. 6 (12 o'clock position when compared to a clock), and a position (10 o'clock) displaced slightly from the upper end to one end (left side) as shown in FIG. The position can be rotated or slid freely. When the switching lever 55 is moved to the left position (10 o'clock position) shown in FIG. 8, the switching valve 45 is set so that the remedy / hot water mode, that is, the forward circuit A is communicated with the discharge chamber 41. Can be switched. Furthermore, when the switching lever 55 is moved from the left side (10 o'clock position) to the upper end position (12 o'clock position) shown in FIG. 6, the bubble generation mode, that is, the forward circuit A is communicated with the bubble generation nozzle 5. Thus, the switching valve 45 is switched.

  As shown in FIGS. 3 to 5, the in-tank arrangement portion 4 in the partition member 3 has an intake circuit in which the upper end opens at the upper end of the peripheral side wall of the in-tank arrangement portion 4 and the lower end opens in the bubble generating nozzle 5. 47 is provided. An upper end opening of the intake circuit 47 is configured as a tube connection port 46, and air introduced from the tube connection port 46 is introduced into the bubble generating nozzle 5 through the intake circuit 47. ing.

  Further, a connection pipe 48 is fixed inside the tube connection port 46 of the intake circuit 47, and when one end of the intake tube 71 is inserted into the tube connection port 46 as will be described later, the inside of one end of the intake tube 71 is inside. By fitting outside the connection pipe 48, one end of the intake tube 71 can be connected to the tube connection port 46 of the intake circuit 47 in a stable state.

  As shown in FIGS. 3, 4, and 10, the intake device 7 includes an intake tube 71 and an intake unit (intake box) 72.

  The intake tube 71 is made of soft synthetic resin or synthetic rubber having flexibility or elasticity. As described above, one end (lower end) of the intake tube 71 is detachably inserted into the tube connection port 46 of the in-tank arrangement portion 4 of the partition member 3 through the connection pipe 48.

  The air intake unit 72 includes a substrate 73 and a box-shaped cover member 74 that is detachably attached so as to cover the front surface side of the substrate 73 and whose back surface side is open.

  A suction cup 75 is attached to the back side of the substrate 73, and the suction unit 75 allows the suction unit 72 to be sucked and adsorbed to a wall surface in a bathroom.

  In the present embodiment, the suction cup 75 is configured as an attachment means for detachably attaching the other end of the intake tube 71 into the bathtub. Further, in the present invention, in the case of the wall surface in the bathroom, in addition to the inner surface of the peripheral wall constituting the bathroom, the inner surface of the window installed in the bathroom, the back plate surface of the storage shelf, the mirror surface, the inner surface of the door, and further the bathtub (bathtub) ) The inner and outer wall surfaces of T itself are also included.

  A tube connector 76 is fixed to the surface of the substrate 73. A filter installation recess 761 that opens upward is formed in the tube connector 76, and an air filter 77 is fitted and attached in the recess 761. Further, the tube connector 76 is formed with a tube connector pipe 762 that protrudes downward and whose inside communicates with the filter installation recess 761. The other end (upper end) of the intake tube 71 is detachably fitted to the tube connecting pipe 62. Thus, the other end opening of the intake tube 71 is opened in the intake unit 72 via the air filter 77.

  A notch 741 for avoiding interference with the intake tube 71 is formed on the lower wall of the cover member 74 in the intake unit 72. The cutout portion 741 and the suction cup mounting cutout portion 731 provided on the substrate 73 allow air outside the intake unit 72 to be taken inwardly.

  The air thus taken into the intake unit 72 from the notches 731 and 741 passes through the air filter 77 and is introduced into the intake tube 71, and the air passes through the intake tube 71 and enters the in-tank arrangement portion 4. It is introduced into the intake circuit 47.

  As shown in FIGS. 2 to 7, the filter member 9 has a drum-like or disk-like shape with an open rear end, and covers the peripheral side surface from the front surface of the in-tank protruding portion 4 of the partition member 3. And is detachably attached to the partition member 3.

  An operation lever opening 95 is formed on the front wall of the filter member 9 corresponding to the operation region of the switching lever 55 of the partition member 3, and the switching lever 55 is exposed to the front side through the opening 95. ing. Thus, the switching lever 55 can be switched between the chasing / hot water mode (bubble prohibition mode) and the bubble generation mode with the filter member 9 mounted on the partition member 3.

  Further, a ring member 96 is attached to the front wall of the filter member 9 so as to correspond to the bubble generating nozzle 5, and the jet outlet 50 of the bubble generating nozzle 5 is passed through the central through hole of the ring member 96. Is open forward. Thereby, the microbubble water ejected from the ejection port 50 of the bubble generating nozzle 5 is ejected into the bathtub through the through hole of the ring member 96.

  A suction port 9b made up of a large number of small holes is formed in the front wall of the filter member 9. As a result, the hot water in the bathtub is sucked into the suction chamber 42 of the tank arrangement portion 4 through the suction port 9b of the filter member 9, the suction port 4b of the tank arrangement portion 4 and the front chamber 44. Yes.

  Further, on the peripheral side wall of the filter member 9, discharge ports 9a and 9a are formed corresponding to the first and second discharge ports 41a and 42a of the in-tank arrangement portion 4 (see FIG. 7 and the like). Thereby, the hot and cold water in the discharge chamber 41 and the suction chamber 42 of the in-tank arrangement part 4 is discharged into the bathtub through the discharge ports 4a and 4b of the in-tank arrangement part 4 and the discharge ports 9a and 9a of the filter member. It is like that.

  Further, a slit 91 opened to the rear side corresponding to the tube connection port 46 of the partition member 3 is formed at the upper end portion of the peripheral side wall of the filter member 9, and the intake tube 71 connected to the tube connection port 46 has a slit 91. The filter member 9 does not interfere. Further, even when the intake tube 71 is still connected to the partition member 3, the filter member 9 can be attached to the partition member 3 by inserting the intake tube 71 through the slit 91.

  In the present embodiment, a water-tight member such as packing is appropriately interposed at the joint portion of each part constituting the hot-water supply adapter P as necessary to achieve water-tightness.

  The hot water supply adapter P having the above configuration is connected to an outdoor water heater by piping. That is, the forward pipe connection portion 1a and the return pipe connection portion 1b of the hot water supply adapter P are connected to the hot water supply pipe portion and the suction pipe portion of the hot water supply apparatus via the forward side outer pipe (outward pipe) and the return side outer pipe (return pipe). Connected. In the hot water supply adapter P of the present embodiment thus connected to the outdoor water heater by pipes, the above-mentioned hot water beam processing, chasing processing and bubble generation processing can be performed. The intake unit 72 of the intake device 7 is attached via a suction cup 75 at a position higher than the bathtub surface on the inner wall surface of the bathroom, for example.

  In the hot water supply adapter P of the present embodiment, when performing hot water treatment, the switching lever 55 is set to the hot water / remembrance mode (the left position shown in FIG. 8), and the operation for operating the hot water heater is performed. The “hot water button” on the panel 6 (see FIG. 1) is pressed to execute hot water processing. Accordingly, hot water is supplied from both the hot water supply pipe portion and the hot water supply pipe portion of the outdoor water heater to the forward pipe connection portion 1a and the return pipe connection portion 1b of the outside mounting member 1 through the forward side outer pipe and the return side outer pipe, respectively. Is supplied. Hot and cold water supplied to both the connecting portions 1a and 1b is supplied to the discharge chamber 41 and the suction chamber 42 through the forward circuit A and the return circuit B, respectively, and from there, the first discharge port 41a and the second discharge port 42a, the filter It is supplied into the bathtub through both outlets 9a, 9a of the member 9. In this way, hot water is supplied by the two systems of the forward circuit A side and the return circuit B side.

  Depending on the type of water heater, etc., the hot water treatment may be performed by single conveyance. In that case, hot water is not supplied from the outdoor water heater to the return circuit 1b side, but only to the outgoing circuit 1a side. Hot water is supplied and hot water is supplied into the bathtub.

  When performing the memorial process, the switching lever 55 is set to the hot water / memorial mode as described above, and the “memorial button” on the operation panel 6 is pressed. As a result, the hot water in the bathtub is sucked into the suction chamber 42 through the suction port 9b of the filter 9, the suction port 42b of the tank arrangement portion 4, and the front chamber 44 by the suction action of the water heater, and the hot water is returned to the return circuit. B, it returns to the water heater through the return pipe connecting portion 11b and the return side outer pipe. Further, the hot water returned to the water heater is reheated and supplied to the bathtub from the discharge port 9a of the filter member 9 through the outward outer pipe, the outward circuit A and the like.

  When the bubble generation process is performed, the switching lever 55 is set to the bubble generation mode (the upper end position shown in FIG. 6), and the forward circuit A is connected to the bubble generation nozzle 5 side. Press the 焚 button. As in the above, hot water in the bathtub is returned to the water heater through the return circuit B side, while hot water is supplied from the water heater to the bubble generating nozzle 5 through the outward outer pipe and the outward circuit A. It is ejected from the ejection port 50. When a water flow is generated in the bubble generating nozzle 5 in this manner, the inside of the intake circuit 47 becomes negative pressure, and the negative pressure causes air in the bathroom to be taken in from the other end opening (upper end opening) of the intake tube 71 and the intake tube 71 and It is introduced into the bubble generating nozzle 5 through the intake circuit 47. The air introduced into the bubble generating nozzle 5 is mixed into the hot water as microbubbles in the bubble generating nozzle 5, and the microbubble water is jetted from the jet port 50 of the bubble generating nozzle 5 into the bathtub. Thereby, microbubbles are generated in the bathtub.

  According to the hot water supply adapter P of the present embodiment having the above-described configuration, the other end as the air intake portion of the intake tube 71 for taking in the air for microbubbles is arranged in the bathroom. Warm air (warm air) can be taken in as macro bubble air. For this reason, it is possible to supply warm microbubble water in which microbubbles due to warm air are mixed into the bathtub, and microbubbles due to cold air are generated in the bathtub and the water temperature is inadvertently lowered. It can be surely prevented and a comfortable bathing environment can be obtained.

  Furthermore, since the other end of the intake tube 71 is disposed in the bathroom, outdoor dust such as outdoors and odors are not taken into the intake tube 71. Accordingly, it is possible to prevent the microbubbles mixed with dust and odor from being supplied into the bathtub, and to effectively prevent contamination by dust and odor in the bathroom, thereby obtaining a more comfortable bathing environment.

  Further, according to the hot water supply adapter P of the present embodiment, since the entire area of the intake tube 71 is disposed in the bathroom, the troublesome work of pulling the intake tube out of the bathroom as in the past is performed. This is unnecessary, and the length of the intake tube 71 itself can be shortened. For this reason, the intake tube 71 can be easily installed, maintenance and inspection are easy, and repair and replacement at the time of failure can be easily performed.

  Further, in the hot water supply port adapter P of the present embodiment, even if hot water in the bathtub flows into the bubble generating nozzle 5 and flows back through the intake tube 71, no problem occurs. That is, since the other end of the intake tube 71 is disposed in the bathtub, even if hot water in the bathtub flows backward through the intake tube 71 and flows out of the other end, it is merely a small amount in the bathtub in the bathroom. The hot water just flowed out of the tub, and no problems occurred.

  Moreover, in the hot water supply adapter P of this embodiment, since the tube connection port 46 is formed in the peripheral side wall of the tank arrangement | positioning part 4, connecting one end of the intake tube 71 to the peripheral side wall of the tank arrangement | positioning part 4 It is possible to arrange the intake tube 71 along the inner wall surface of the bathtub so as to be well arranged, and to ensure a good aesthetic appearance. In particular, in this embodiment, since one end of the intake tube 71 is connected to the upper end of the peripheral side wall of the in-tank arrangement portion 4, the intake tube 71 can be arranged in a straight line with a vertically upward direction, which is even better. Beautiful aesthetics.

  Furthermore, in this embodiment, since the intake unit 72 provided at the other end of the intake tube 71 is attached to the wall surface in the bathroom by the suction cup 75, the intake unit 72 can be easily attached to a desired position. It is easy to use and can improve versatility.

  In the hot water supply adapter P of the present embodiment, the switching position of the switching lever 55 provided on the front surface of the in-tank arrangement portion 4 is set to an upper end position when a bubble is generated, and is set to a position displaced from the upper end when a bubble is prohibited, One end of the intake tube 71 is connected to the upper end portion of the in-tank arrangement portion 4. That is, if the switching lever 55 is arranged at a position corresponding to the intake tube 71 (if the switching lever 55 is arranged on the same line as the intake tube 71), the bubble generation mode is permitted to allow the generation of microbubbles. . For this reason, a user such as a bather can easily and accurately grasp the position at which the switching lever 55 is set to generate microbubbles. Therefore, erroneous operation of the switching lever 55 by the bather can be surely prevented. For example, when performing the memorial process or the hot water treatment, the microbubble water is apologized or the microbubble is generated. At this time, it is possible to surely prevent problems such as apologizing and performing the memorial process.

  In this embodiment, since the position of the switching lever 55 in the bubble generation mode is set to the upper end position (the lever 55 is in a vertical state) that is most easily remembered by the user, this point is also effective when microbubbles are generated. The position of the switching lever 55 is not misunderstood and erroneous operation can be prevented more reliably.

  Moreover, in this embodiment, since the intake tube 71 is detachably attached to the in-tank arrangement part 4, if the intake tube 71 is removed from the in-tank arrangement part 4 when it is unnecessary such as when installing a bath lid, The bath lid can be installed without difficulty without interfering with the tube 71, and the intake tube 71 does not get in the way when the bathtub T is cleaned.

  In particular, in the present embodiment, since the intake unit 72 provided on the other end side of the intake tube 71 is detachably attached to the inner surface of the bathtub by the suction cup 75, the entire intake device 7 such as the intake tube 71 and the intake unit 72, etc. If it is removed, the bathroom can be cleaned more efficiently.

  Moreover, according to the hot water supply adapter P of this embodiment, it can construct easily using the existing hot water supply adapter P without a microbubble generation function. That is, in this embodiment, since the bubble generating mechanism is incorporated in the partition member 3 and the intake device 7 is installed in the bathroom, the bubble generation as in this embodiment is performed in place of the existing hot water supply adapter. When assembling a new hot water supply adapter P having a function, the existing hot water supply adapter outside the tank and the male screw member are installed without being removed, and the new partition member 3 and the intake device 7 are attached to these members. And it can be used as the hot water inlet adapter P of this embodiment only by assembling the filter member 9. For this reason, in addition to the mounting / removal work of the outside mounting member, the troublesome work of pulling out the intake tube outside the tank and laying it under the floor or behind the wall is unnecessary, and the hot water supply adapter P can be easily and reliably installed. Can be assembled. In addition, the existing outer pipes such as the outer pipe and the return side outer pipe and the outdoor water heater can be used as they are, and a large-scale work for installing them is not required. Can be assembled even more easily.

  FIGS. 11 and 12 are front views showing a modification of the intake device 107 applied to the bathtub hot-water supply adapter of the present invention. As shown in the figure, the intake device 107 includes an intake tube 71 and an intake unit 172 that also functions as a controller.

  The intake unit 172 is provided with a dial installation opening 173, and a shaft 174 whose axis extends in the left-right direction in FIG. 11 is attached to the opening 173 so as to be rotatable about the axis.

  The shaft portion 174 has a spline tooth 175 formed on one side (right side) in the opening 173 and has a circular cross section on the other side (left side) without spline teeth.

  A dial 177 as an operation unit is attached to the shaft portion 174 so as to be slidably fitted along the axial direction of the shaft portion 174. As shown in FIG. 13, a spline groove 179 that can be engaged with the spline teeth 175 of the shaft portion 174 is formed in the shaft portion insertion through hole 178 of the dial 177.

  The shaft portion 174 has spline teeth 175 formed on one side (right side) in the opening 173, and the other side (left side) has no spline teeth and has a circular cross section.

  Further, the shaft portion 174 is provided with a dial 177 as an operation portion. As shown in FIG. 13, the dial 177 has a through hole 178 formed in the center thereof, and the dial 177 is inserted into the shaft part 174 in the axial direction so that the shaft part 174 is inserted into the through hole 178. It is slidably attached to. Further, a spline groove 179 that can be engaged with the spline teeth 175 of the shaft portion 174 is formed in the through hole 178 of the dial 177.

  11, when the dial 177 is slid rightward along the shaft portion 174, the spline groove 179 is engaged with the spline teeth 175 so that the rotational force of the dial 177 is transmitted to the shaft portion 174. It has become. Therefore, in this state (operation allowable state), the shaft portion 174 is rotated when the dial 177 is rotated. Further, as shown in FIG. 12, when the dial 177 is slid leftward along the shaft portion 174, the spline groove 179 is pulled out from the spline teeth 175 so that the operating force of the dial 177 is not transmitted to the shaft portion 174. ing. Therefore, in this state (operation disabled state), the dial 177 rotates idly with respect to the shaft portion 174, so that the shaft portion 174 does not rotate even if the dial 177 is rotated. That is, in the present embodiment, the dial 177 is configured to be switchable between an operation allowable state and an operation disabled state.

  In addition, an air intake amount variable mechanism 176 attached to the other end opening of the intake tube 71 is provided in the intake unit 172. The air intake amount varying mechanism 176 can change the intake amount of air taken in from the other end opening of the intake tube 71 based on the rotation operation of the shaft portion 174. Therefore, the amount of air taken in from the other end of the intake tube 71 can be adjusted by rotating the shaft 174 by setting the dial 177 to the operation-permitted state and rotating the shaft 174. Needless to say, when the dial 177 is set in an inoperable state, the dial 177 simply turns idle, and the air intake amount cannot be adjusted.

  Further, the intake tube 71 is connected to the tube connection port of the adapter main body as in the above embodiment.

  Since the other configuration of the hot water supply adapter of this modification is the same as that of the above-described embodiment, redundant description is omitted.

  In the hot water supply adapter of this modification, the same effect can be obtained as described above.

  Furthermore, in the hot water outlet adapter of this modification, since the amount of air taken in can be adjusted by the dial 177, an appropriate amount of microbubbles can be generated in the bathtub according to the preference of the bather, An even more comfortable bathing environment can be obtained.

  Also, when dial operation is not necessary, if the dial 177 is slid and set in an inoperable state, the dial 177 is rotated due to mischief by children, unintentional contact by the bather, etc. However, since the air intake amount does not fluctuate, it is possible to reliably prevent an unexpected fluctuation of the bubble generation amount in the bathtub.

  By the way, in the said embodiment, although one end of the intake tube 71 is connected with the surrounding side wall of the tank arrangement | positioning part 4, it is not restricted to it, In this invention, one end of an intake tube is made into the tank arrangement | positioning part. You may make it connect with a front wall (front surface). In short, one end of the intake tube may be connected to any position as long as it is the outer surface of the in-tank arrangement portion 4.

  Further, in the above-described embodiment, one end of the intake tube 71 is directly inserted into the tube connection port 46 of the in-tank arrangement portion 4. However, the present invention is not limited to this. A one-touch fixed type end tool may be attached to the tube, and the end tool may be detachably connected to the tube connection port of the in-tank arrangement portion 4.

  Further, in the above embodiment, the intake unit 72 of the intake device 7 is detachably attached to the inner surface of the bathtub by the suction cup 75. However, in the present invention, the method of attaching the air attachment device is not limited. For example, the air intake unit may be attracted to the inside of the bathtub using magnetism, or may be fixed to the inner surface of the bathtub by screwing or bonding treatment, or a hook or the like is fixed to the inner surface of the bathtub. Then, the intake unit may be engaged and attached to the hook. Furthermore, in the present invention, it is not always necessary to fix the intake unit to the inner wall surface of the bathtub or the like, and the intake unit is placed (leaved) at an appropriate position in the bathtub, for example, the upper end surface of the bathtub wall, a storage shelf, or the like. You may do it.

  The bathtub hot-water supply adapter according to the present invention can be employed as a hot-water supply fitting having a bubble generating function in a bathtub in a general house, for example.

4: In-tank arrangement part 46: Tube connection port 47: Intake circuit 5: Bubble generating nozzle (bubble generator)
55: Switching lever 71: Intake tube 75: Suction cup (mounting means)
10: Adapter body 172: Intake unit (controller)
176: Air intake variable mechanism 177: Dial (operation unit)
P: Hot water supply adapter T: Bathtub

Claims (8)

An adapter main body having an in-tank arrangement portion arranged in the bathtub, a bubble generator incorporated in the adapter main body, an intake circuit provided in the adapter main body and for introducing air into the bubble generator; An intake tube having one end connected to the intake circuit, and air taken in from the other end of the intake tube is introduced into the bubble generator via the intake tube and the intake circuit, and the air Based on the above, a hot water outlet adapter that generates microbubble water mixed with hot water by the bubble generator and jets it into the bathtub,
A tube connection port that is a connection port with one end of the intake tube in the intake circuit is disposed on the outer surface of the in-tank arrangement portion,
The other end of the intake tube is placed in the bathroom ;
A switching lever that can be switched between a bubble generation mode that allows generation of microbubble water by the bubble generator and a bubble prohibition mode that prohibits generation of microbubbles is provided on the front surface of the placement section in the tank. ,
The switching lever is disposed at a position corresponding to the tube connection port in the bubble generation mode, and is disposed at a position not corresponding to the tube connection port in the bubble prohibition mode. Water heater adapter. A controller is provided at the other end of the intake tube,
The controller includes an operation unit and an air intake amount variable mechanism for changing an intake amount of air taken from the other end of the intake tube,
The hot water inlet adapter for a bathtub according to claim 1, wherein an intake amount of air into the intake tube is adjusted by the air intake amount variable mechanism based on an operation of the operation unit. An adapter main body having an in-tank arrangement portion arranged in the bathtub, a bubble generator incorporated in the adapter main body, an intake circuit provided in the adapter main body and for introducing air into the bubble generator; An intake tube having one end connected to the intake circuit, and air taken in from the other end of the intake tube is introduced into the bubble generator via the intake tube and the intake circuit, and the air Based on the above, a hot water outlet adapter that generates microbubble water mixed with hot water by the bubble generator and jets it into the bathtub,
A tube connection port that is a connection port with one end of the intake tube in the intake circuit is disposed on the outer surface of the in-tank arrangement portion,
The other end of the intake tube is placed in the bathroom ;
A controller is provided at the other end of the intake tube,
The controller includes an operation unit and an air intake amount variable mechanism for changing an intake amount of air taken from the other end of the intake tube,
The hot water inlet adapter for a bathtub, wherein the intake amount of air into the intake tube is adjusted by the air intake amount variable mechanism based on the operation of the operation unit. The hot water inlet adapter for bathtubs according to claim 3 , wherein the operation portion is constituted by a dial that can be freely rotated. The hot water inlet adapter for bathtubs according to claim 3 or 4 , wherein the operation portion is configured to be switchable between a state where the operation force is transmitted to the air intake amount variable mechanism and a state where the operation force is not transmitted. The hot water inlet adapter for bathtubs according to any one of claims 1 to 5, wherein one end of the intake tube is detachably attached to the tube connection port. The hot-water adapter for bathtubs according to any one of claims 1 to 6 , wherein the tube connection port is disposed on a peripheral side wall of the placement portion in the tank. The hot water inlet adapter for a bathtub according to any one of claims 1 to 7 , wherein an attachment means for detachably attaching the other end to a wall surface in the bathroom is provided at the other end of the intake tube.

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