JP5801629B2 - Bathtub adapter - Google Patents

Description

  The present invention relates to a hot water inlet adapter for a bathtub that is attached to a wall of the bathtub for hot water supply.

  In the hot water supply adapter that is attached to the side wall of the bathtub in a penetrating state, a suction port and a discharge port are provided so as to face the bathtub. At the time of reheating, hot water in the bathtub is sucked from the suction port, returned to the outdoor water heater through the hot water inlet adapter, and heated there. Furthermore, the hot water heated by the water heater is supplied to the hot water supply adapter, and is discharged from the discharge port into the bathtub through the adapter.

  By the way, recently, a bathtub hot-water supply system has been proposed in which a generator is incorporated in a hot-water supply adapter, and an illuminator or the like emits light by self-power generation.

  For example, the bathtub hot-water supply system shown in Patent Document 1 is provided with an illuminator at a hot-water supply adapter, and the illuminator emits light when retreating to enhance the display effect.

  The bathtub hot-water supply system shown in Patent Literature 2 is provided with an illuminator facing the hot-water supply adapter on the bathtub wall, and illuminates the hot water sprayed from the hot-water supply with the illuminator so as to enhance the display effect. Yes.

  In the bathtub hot-water supply system shown in Patent Documents 3 and 4, an illuminator that irradiates ultraviolet rays is provided in a return flow path that sends hot water in a water tank to a water heater, and the hot water that circulates in the return flow path is supplied from the illuminator. The hot water is sterilized and purified by irradiating with ultraviolet rays.

  These hot water supply systems are all self-powered using a generator. A water turbine (turbine) is installed on the hot water circulation path, and the water turbine is rotated by the water flow and connected to the water turbine. Electric power is generated by driving the generator body.

JP 2004-215994 A JP 2001-227011 A JP 2002-336149 A JP 2002-340416 A

  However, in the conventional hot water supply systems shown in Patent Documents 1 to 4, since the power is generated by a generator having a complicated structure and a large size, there is a problem that the structure becomes complicated and large. To do.

  This invention is made | formed in view of said subject, and it aims at providing the hot water inlet adapter for bathtubs which can self-power-generate, aiming at the simplification and size reduction of a structure.

  In order to solve the above problems, the present invention comprises the following means.

[1] It has an outward flow path and a return flow path leading from the outside of the bathtub to the inside of the bathtub, hot water from outside the bathtub is discharged into the bathtub through the forward flow path, and hot water from within the bathtub is returned to the bathtub A hot water adapter for a bathtub that is sent out of the bathtub through a flow path,
A power generation chamber in which hot water circulates is provided on at least one of the forward flow channel and the return flow channel,
A piezoelectric element plate including a piezoelectric element is attached to the power generation chamber so that an end of the piezoelectric element plate can swing.
A hot water outlet adapter for a bathtub, wherein electric power is generated by operating a piezoelectric element by swinging an end portion of the piezoelectric element plate in accordance with hot water flowing through the power generation chamber.

  [2] The bathtub hot-water adapter according to item 1, wherein a weight is attached to the swinging end of the piezoelectric element plate.

  [3] The hot water outlet adapter for a bathtub according to the above item 2, wherein the power generation chamber is provided with a water flow disturbance protrusion for disturbing the hot water flowing inside the power generation chamber.

  [4] The hot water outlet adapter for a bathtub according to any one of the preceding items 1 to 3, wherein a plurality of the piezoelectric element plates are provided in the power generation chamber.

[5] A light emitting means disposed inside the bathtub,
The hot water inlet adapter for bathtubs according to any one of the preceding items 1 to 4, wherein the light emitting means is caused to emit light by electric power generated in the power generation chamber.

  [6] The hot water outlet adapter for bathtubs according to the above item 5, wherein the light emitting means is constituted by LEDs.

[7] An in-tank protrusion disposed in the bathtub,
The hot water inlet adapter for bathtubs according to any one of the preceding items 1 to 6, wherein the power generation chamber is provided in the protruding portion in the tank.

  [8] The hot water supply adapter for bathtubs according to any one of the preceding items 1 to 7, wherein the power generation chamber is provided in both the forward flow path and the return flow path.

[9] A hot water outlet adapter for a bathtub having an outward flow path leading from the outside of the bathtub to the inside of the bathtub, so that hot water from the outside of the bathtub is discharged into the bathtub through the forward flow path,
A power generation chamber through which hot water circulates is provided on the outgoing flow path,
A piezoelectric element plate including a piezoelectric element is attached to the power generation chamber so that an end of the piezoelectric element plate can swing.
A hot water outlet adapter for a bathtub, wherein electric power is generated by operating a piezoelectric element by swinging an end portion of the piezoelectric element plate in accordance with hot water flowing through the power generation chamber.

  According to the hot water inlet adapter for bathtubs of the invention [1], self-power generation is performed using a piezoelectric element, so that the structure can be simplified and miniaturized compared to the case of using a generator or the like. it can.

  According to the hot water inlet adapter for bathtubs of inventions [2] to [4], the piezoelectric element can be operated efficiently, and a sufficient amount of power generation can be ensured reliably.

  According to the hot water inlet adapter for bathtubs of inventions [5] and [6], since the light emitting means emits light, it is possible to perform effective presentation display by light in the bathtub.

  According to the hot water inlet adapter for bathtubs of the invention [7], the power generation chamber can be reliably formed on the protruding portion in the tank.

  According to the hot water inlet adapter for bathtubs of the invention [8], since power can be generated in the two power generation chambers, a sufficient power generation amount can be ensured more reliably.

  According to the hot water inlet adapter for bathtubs of the invention [9], the structure can be simplified and miniaturized in the same manner as described above.

FIG. 1 is a side cross-sectional view showing a hot water inlet adapter for bathtubs according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing the hot water supply adapter according to the embodiment. Drawing 3 is a front view showing a channel partition member in a hot-water supply adapter of an embodiment. FIG. 4 is a side cross-sectional view showing the flow path partition member of the embodiment. FIG. 5 is a perspective view showing the channel partition member of the embodiment with the front blocking plate removed. FIG. 6 is a perspective view showing the flow path partition member of the embodiment in an exploded state of the power generation chamber. FIG. 7 is a front view showing the channel partition member of the embodiment in a state where the front blocking plate is removed. FIG. 8 is an enlarged front view showing the periphery of the power generation chamber in the flow path partition member of the embodiment.

  1 and 2 are views showing a hot water inlet adapter for bathtubs according to an embodiment of the present invention. As shown to both figures, the hot-water supply adapter of this embodiment is assembled | attached to the attachment hole H provided in the side wall W of the bathtub. This hot water outlet adapter sucks hot water (water) in the bathtub and sends it to the outdoor water heater in addition to the hot water treatment that supplies hot water supplied from the outdoor water heater into the bathtub. A reheating process for returning hot water heated to an appropriate temperature into the bathtub can be performed.

  As will be described in detail below, this hot water supply adapter can be used by connecting either the forward pipe or the return pipe connected to the hot water heater to the two outer pipe connecting portions 1a and 1b provided in the adapter. The so-called nonpolar type. Furthermore, it is a valveless type in which a flow control valve for controlling the flow of water such as a backflow prevention valve is not provided inside the adapter.

 The hot water supply port adapter of the present embodiment includes a tank outer attachment member 1, a male screw member 2, and a flow path partition member 3 as basic components. In this specification, the inside (left side in FIG. 1) of the bathtub along the axial center direction of the hot water supply adapter is defined as the “front side” or “front side” and the outside (right side in FIG. 1). ) As “rear side” or “back side”.

  As shown in FIGS. 1 and 2, the outside-tubing attachment member 1 is disposed on the same axis as a cylindrical outer cylinder portion 12 whose front side is open and whose rear side is closed, and inside the outer cylinder portion 12. A cylindrical inner cylinder part 11, a flat ring-shaped flange part 15 provided on the outer periphery of the front end of the outer cylinder part 12, and a tubular first part provided so as to protrude laterally at the rear end of the peripheral wall of the outer cylinder part 12. 1 and 2nd outer pipe | tube connection part 1a, 1b are integrated.

  The internal space of the inner cylinder part 11 is configured as a part of an inner flow path A described later, and the annular space between the inner cylinder part 11 and the outer cylinder part 12 is configured as a part of an outer flow path B described later. Has been. The first outer pipe connection portion 1 a is communicated with the inner flow path A, and the second outer pipe connection portion 1 b is communicated with the outer flow path B.

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

  A synthetic resin packing 82 is attached to the outer peripheral edge portion of the flange portion 15 of the tank outer attachment member 1 for watertightness between the flange portion 15 and the bathtub outer wall surface.

  As shown in FIG. 1.2, the male screw member 2 integrally includes a cylindrical body portion 21 whose front and rear ends are open, and a flat ring-shaped flange portion 25 provided on the outer periphery of the front end of the body portion 21. It has a cylindrical shaped product with a hook.

  A male screw is engraved on the outer peripheral side surface of the body portion 21 in correspondence with the female thread of the outer tube portion 12 in the tank outer attachment member 1, and the body portion 21 is placed in the outer tube portion 12 of the tank outer attachment member 1. It can be fixed by screwing in.

  And the flange part 15 of the external thread member 2 is the ring-shaped packing made from a synthetic rubber in the state arrange | positioned so that the flange part 15 of the tank outer attachment member 1 may follow the peripheral part of the attachment hole H in the outer wall surface of a bathtub. The body portion 21 of the male screw member 2 is screwed and fixed to the outer cylinder portion 12 of the outside-tubing attachment member 1 through the attachment hole H so as to be pressed against the peripheral edge portion of the attachment hole H on the inner wall surface of the bathtub through 83. Is done. As a result, the peripheral edge of the attachment hole in the bathtub side wall W is sandwiched by the flange portions 15 and 25 of the both members 1 and 2, and the both members 1 and 2 are assembled in the bathtub sidewall W in a penetrating state.

  As shown in FIGS. 1 to 4, the flow path partition member 3 is an elongated cylindrical portion 31 extending in the axial direction (front-rear direction), and a disc-shaped protrusion in a tank provided at the front end portion of the cylindrical portion 31. Part 4.

  The in-tank projecting portion 4 has a hollow structure in which a plurality of flow paths are provided, and is integrally formed so as to surround the substantially disc-shaped rear wall 41 and the outer periphery on the front side of the rear wall 41. The outer peripheral wall 42 and the front closing plate 5 that closes a part of the front side opening of the outer peripheral wall 42 are provided.

  In the present embodiment, the outer peripheral surface is constituted by the outer peripheral surface of the outer peripheral wall 42 of the in-tank protrusion 4.

  As shown in FIG. 1, the cylindrical portion 31 is connected to the inner cylinder portion 11 of the outside-tubing attachment member 1 as will be described later, and the inside of the cylindrical portion 31 and the outside-tubing attachment member 1 that communicates with the inside. An inner flow path A is formed by the inside of the inner cylinder portion 11. Further, as will be described later, the cylindrical portion 31 is disposed inside the body portion 21 of the male screw member 2, and the annular space between the cylindrical portion 31 and the body portion 21 and the inner portion of the outside-tubing attachment member 1 that communicates therewith. The outer flow path B is formed by the annular space between the cylindrical portion 11 and the outer cylindrical portion 12.

  As shown in FIGS. 4, 7, etc., the rear wall 41 of the in-tank protruding portion 4 is formed with a first communication hole 41 a corresponding to the cylindrical portion 31 and corresponding to the side of the cylindrical portion 31. Thus, a second communication hole 41b is formed. Further, first and second openings 42 a and 42 b are formed on both sides of the lower portion of the outer peripheral wall 42.

  A plurality of partition walls 43 are formed on the front side of the rear wall 41 of the in-tank protrusion 4, and the partition walls 43 allow the first and second flow paths to be independent of each other in the in-tank protrusion 4. 43a and 43b and the LED chamber 45 are formed.

  The first flow path 43a is formed from the first communication hole 41a to the first opening 42a, and the inner side (inner flow path A) of the cylindrical portion 31 behind the in-tank protrusion 4 via the first communication hole 41a. And is open to the outside of the in-tank protruding portion 4 through the first opening 42a.

  The second flow path 43b is formed from the second communication hole 41b to the second opening 42b, and is located outside the cylindrical portion 31 (outer flow path B) behind the protruding portion 4 in the tank via the second communication hole 41b. And is open to the outside of the in-tank protruding portion 4 through the second opening 42b.

  The LED chamber 45 is provided from the first opening 42 a to the second opening 42 b along the upper edge of the in-tank protrusion 4.

  Inside each LED chamber 45, a plurality of light emitting diodes (LEDs) 46 as light emitting means (illuminators) are arranged side by side along the outer peripheral edge of the in-vessel protrusion 4.

  As shown in FIGS. 5 to 7, a lock pin insertion hole 49 is provided at an upper intermediate position in the in-tank protruding portion 4, and when the flow path partition member 3 is attached to the male screw member 2 as will be described later. In addition, the lock partition (not shown) inserted into the lock pin insertion hole 49 prevents the passage partition member 3 from rotating with respect to the male screw member 2.

  As shown in FIGS. 3 to 5 and the like, a front closing plate 5 is detachably attached to the front side opening of the in-tank protruding portion 4 so as to close the entire opening.

  A portion of the front closing plate 5 corresponding to the LED chamber 45 is constituted by a transparent window 51 made of transparent synthetic resin. Therefore, when the LED 46 is turned on, the illumination light passes through the transparent window 51 and is irradiated in front of the hot water supply adapter.

  As shown in FIGS. 5-8, the intermediate part (part) of the 1st and 2nd flow paths 43a and 43b is comprised as the 1st and 2nd electric power generation chambers 7a and 7b.

  In the first and second power generation chambers 7a and 7b, rod-like support members 71 and 71 are attached along the width direction of the flow paths 43a and 43b. An intermediate portion of a plurality of band-plate-shaped swing plates 72 is fixed to each support member 71, 71. Three oscillating plates 72 are provided for each support member 71, and each oscillating plate 72 is arranged along the flowing direction of hot water.

  Each swing plate 72 has elasticity or flexibility, and both end portions (swing end portions) can swing with the attachment position (center portion) to the support member 71 as a fulcrum. . Further, a weight 73 having a predetermined mass is attached to the swing end of each swing plate 72.

  In this embodiment, the rocking plate 72 constitutes a piezoelectric element plate (piezoelectric element film) including a piezoelectric element.

  Further, a lead wire such as a copper wire is incorporated in the support member 71 that supports the swing plate 72, and power generated by the piezoelectric element of the swing plate 72 is supplied to the lead wire as will be described later. Can be taken out through.

  Water flow disturbance protrusions 66 and 66 are provided at positions on the first and second communication holes 41a and 41b side of the bottom surfaces of the power generation chambers 7a and 7b, respectively, and also at positions on the first and second openings 42a and 42b side. Water flow disturbance projections 66 and 66 are provided, respectively. Each of the water flow disturbance protrusions 66 is formed so as to protrude from the bottom surface of the power generation chambers 7a and 7b toward the front (front blocking plate 5 side). The hot water flowing into the power generation chambers 7a and 7b from the first and second communication holes 41a and 41b or the first and second openings 42a and 42b is disturbed by the water flow disturbing projections 66 and 66 to become turbulent flow. The first and second openings 42a and 42b or the first and second communication holes 41a and 41b flow out.

  As shown in FIG. 4, at the positions corresponding to the power generation chambers 7a and 7b on the back side of the front blocking plate 5, two water flow disturbance projections 56 and 56 are formed in each of the power generation chambers 7a and 7b. Yes. Similar to the water flow disturbance projections 66 and 66 provided on the bottom surfaces of the power generation chambers 7a and 7b, the water flow disturbance projections 56 and 56 disturb the hot water flowing through the power generation chambers 7a and 7b, and the flow of hot water. Is in a turbulent state.

  In the present embodiment, the flow path partition member 3 is provided with a control circuit (not shown) that controls lighting (light emission) of the LED 46. Furthermore, the lead wire included in the support member 71 of the swing plate 72 of the power generation chambers 7a and 7b and the control circuit are electrically connected. Thus, when the swing plate 72 swings and electric power is generated, the LED 46 is turned on by the electric power.

  In the power generation chambers 7a and 7b configured as described above, for example, when hot water flows into the power generation chambers 7a and 7b (first and second flow paths 43a and 43b) from the first and second communication holes 41a and 41b, The turbulent flow is disturbed by the water flow disturbance protrusion 66, and the oscillating end portion of the oscillating plate 72 is oscillated violently by the hot water, whereby the piezoelectric element is actuated to generate electric power.

  On the contrary, even when hot water flows into the power generation chambers 7a and 7b from the first and second openings 42a and 42b, the hot water is disturbed by the water flow disturbing projections 66 and becomes turbulent. The swing end vibrates violently to generate electric power.

  The flow path partition member 3 having the above configuration is detachably attached to the male screw member 2 assembled to the bathtub side wall W by a known attachment means. At this time, the cylindrical portion 31 of the flow path partition member 3 is inserted into the inner cylinder portion 11 of the outside-tubing attachment member 1 disposed inside the male screw member 2.

  Needless to say, in the present invention, the procedure for assembling the hot water supply adapter is not limited, and any procedure may be used.

  In this assembled state, as shown in FIG. 1, an O-ring 81 is disposed between the inner cylindrical portion 11 of the outer tank attachment member 1 and the cylindrical portion 31 of the flow path partition member 3, and the O-ring 81 The water-tightness between the members 11 and 31 is achieved, and the in-tank protruding portion 4 of the channel partitioning member 3 and the male screw member 2 are provided by the packing 84 provided on the rear surface of the in-tank protruding portion 4 of the channel partitioning member 3. Watertightness between the flange portion 25 and the flange portion 25 is achieved.

  In the hot water outlet adapter thus assembled in the bathtub, the inner flow path A passes through the first communication hole 41a of the flow path partition member 3 to the first flow path 43a (first power generation chamber 7a) of the flow path partition member 3. The first flow path 43 a (first power generation chamber 7 a) is communicated (opened) into the bathtub through the first opening 42 a and the opening 92 of the cover member 9. The outer flow path B communicates with the second flow path 43b (second power generation chamber 7b) of the flow path partition member 3 through the second communication hole 41b of the flow path partition member 3, and the second flow path 43b ( The second power generation chamber 7b) is communicated (opened) into the bathtub through the second opening 42a and the opening 92 of the cover member 9.

  In the present embodiment, the inner flow path A and the first flow path 43a (first power generation chamber 7a) constitute either the forward flow path or the return flow path, and the outer flow path. The remaining flow path is configured by the path B and the second flow path 43b (second power generation chamber 7b).

  As described above, the hot water supply adapter according to the present embodiment is connected to the outdoor water heater with respect to the two outer pipe connection portions 1a and 1b in the outside mounting member 1 when connecting the pipe to the outdoor water heater. Non-polar type that can be used with either pipe or return pipe connected.

  For example, in the state where the outgoing pipe is connected to the first outer pipe connecting portion 1a and the return pipe is connected to the second outer pipe connecting portion 1b, when the reheating process is performed, the hot water supplied from the water heater is connected to the outgoing pipe and the first outer pipe. 1 is introduced into the inner flow path A through the outer pipe connecting portion 1a, and the hot water is supplied into the bathtub from the first opening 42a through the inner flow path A and the first flow path 43a of the flow path partition member 3. Is done.

  On the suction side, the return pipe and the outer flow path B are set to a negative pressure by the suction force of the water heater, so the second flow path 43b of the flow path partition member 3 also has a negative pressure. Accordingly, the hot water (water) in the bathtub is sucked into the second flow path 43b from the second opening 42b of the flow path partition member 3, and returned to the hot water heater through the outer flow path B and the return pipe.

  Therefore, when pipes are connected in this way, the forward flow path is constituted by the inner flow path A and the first flow path 43a, and the return flow path is constituted by the outer flow path B and the second flow path 43b.

  At the time of reheating, the LED 46 provided on the in-tank protrusion 4 is turned on. That is, on the outward flow path side, the swing end portions of the swing plates 72 swing (vibrate) in accordance with the hot water flowing into the first flow path 43a from the first communication hole 41a. As a result, the piezoelectric element included in the swing plate 72 operates to generate electric power. In particular, in the present embodiment, the weight 73 is provided at each oscillating end of each oscillating plate 72, so that the inertia force of the oscillating oscillating plate 72 and resistance to water flow are increased. For this reason, the oscillating plate 72 oscillates continuously without stopping carelessly while hot water is circulating, and sufficient electric power is supplied.

  On the return flow path side, the swing plate 72 is swung in the same manner as described above by the hot water sucked into the second flow path 43b from the second opening 42b, and electric power is generated.

  Thus, the LED 46 is lit by the electric power generated in the power generation chambers 7a and 7b on both the forward flow path side and the return flow path side. Further, the illumination light of the LED 46 thus lit is irradiated in front of the hot water supply adapter, and a light effect can be given to the hot water in the bathtub, so that a comfortable bathing environment can be obtained.

  On the other hand, when the reheating process is performed in a state where the outgoing pipe is connected to the second outer pipe connecting portion 1b and the return pipe is connected to the first outer pipe connecting portion 1a, the circulation is performed in the reverse direction to the above. That is, hot water from the water heater is supplied into the bathtub from the second opening 42b through the forward pipe, the second outer pipe connecting portion 1b, the outer flow path B, and the second flow path 43b (second power generation chamber 7b). At the same time, hot water in the bathtub is sucked from the first opening 42a and passes through the first flow path 43a (first power generation chamber 7a), the inner flow path A, the first outer pipe connection portion 1a, and the return pipe. Returned to the machine.

  Therefore, when the pipes are connected in this way, the return channel is constituted by the inner channel A and the first channel 43a, and the forward channel is constituted by the outer channel B and the second channel 43b.

  Further, even when the pipes are connected in this way, the LED 46 is turned on by generating power in the power generation chambers 7a and 7b as described above.

  In addition, the hot water supply adapter of this embodiment performs hot water beam by a double conveyance system. That is, during hot water supply, hot water is supplied from the water heater to both the return pipe and the return pipe, and the hot water passes through the inner and outer flow paths A and B of the hot water supply adapter and the first and second flow paths 43a and 43b. The first and second openings 42a and 42b are supplied into the bathtub.

  Even during this hot water filling, the power is generated in the power generation chambers 7a and 7b, and the LED 46 is lit as described above.

  As described above, according to the hot-water supply adapter of the present embodiment, the LED 46 can be turned on by self-power generation when reheating or the like, and a predetermined effect effect by light can be given in the bathtub.

  Furthermore, since the hot water supply adapter according to the present embodiment generates power using a piezoelectric element, that is, the swing plate 72 as a piezoelectric element is swung by the flow of hot water flowing through the power generation chambers 7a and 7b. Therefore, since the power generation is performed, the structure of the power generation unit can be simply finished, and the size can be reduced. In particular, the hot water supply adapter according to the present embodiment can more reliably simplify the structure and reduce the size as compared with the case of using a generator having a complicated structure that generates power by rotating a turbine (turbine). Can do.

  In addition, in the present embodiment, since the water flow disturbance projections 56 and 66 are provided in the power generation chambers 7a and 7b, the hot water flowing in the power generation chambers 7a and 7b is disturbed to be in a turbulent flow state. The swing plate 72 can be swung (vibrated) vigorously. Accordingly, the swing plate 72 as the piezoelectric element can be sufficiently operated, a sufficient amount of power generation can be ensured, and the LED 46 can be lighted more reliably.

  In particular, in this embodiment, since the weight body 73 is attached to the rocking end portion of the rocking plate 72, the inertial force of the rocking rocking plate 72 and resistance to water flow are increased. Therefore, the oscillating plate 72 oscillates continuously without hot stop while hot water is circulated, and sufficient power is supplied to light the LED 46 in a more stable state. be able to.

  Further, in the present embodiment, since a plurality of swing plates 72 are arranged in each power generation chamber 7a, 7b, each swing plate 72 swings freely according to the water flow situation in the power generation chambers 7a, 7b. Accordingly, the piezoelectric elements in each swing plate 73 can be operated efficiently, and a sufficient amount of power generation can be ensured more reliably.

  In the present embodiment, since the power generation chambers 7a and 7b are provided on both the forward flow path side and the return flow path side, it is possible to secure a larger amount of power generation than in the case where the power generation chamber is provided only on one side. The LED 46 can be lighted more reliably.

  In the above embodiment, the power generation chambers 7a and 7b are incorporated in the flow paths 43a and 43b of the flow path partition member 3. However, the present invention is not limited thereto, and the power generation chambers 7a and 7b of the embodiment are independent. A power generation chamber unit is formed by being incorporated in the casing, and the power generation chamber unit is detachably attached to the inside of the in-tank protruding portion 5 or detachably attached to the outer peripheral side surface of the in-tank protruding portion 5. You may do it.

  Moreover, in the said embodiment, although the electric power generation room was provided in the protrusion part in a tank, it is not restricted only to it, In this invention, the installation position of an electric power generation room is not restricted only to it. For example, the power generation chambers may be provided on the inner flow path A and the outer flow path B.

  The point is that at least one of the two flow paths, that is, the forward flow path for circulating hot water from the water heater and discharging it to the bathtub, and the return flow path for circulating hot water from the bathtub and sending it to the hot water heater side. A power generation chamber such as a power generation unit may be provided on one of the flow paths.

  Moreover, in the said embodiment, although LED is made to light-emit with the electric power which generate | occur | produced in the power generation chamber, in the present invention, the use application of the generated electric power is not limited. For example, the generated electric power may be used to drive a copper ion generator that generates sterilization by generating copper ions, or to drive an ultraviolet irradiation device that performs sterilization by turning on a UV lamp.

  Moreover, in the said embodiment, although the shape of the rocking | swiveling plate 72 as a piezoelectric element board is formed in the strip | belt-plate shape, in this invention, the shape of a rocking | fluctuation plate is not specifically limited.

  Moreover, in the said embodiment, although LED is used as a light emission means, it is not restricted only to it, You may make it use light emission means, such as incandescent lamps, such as a miniature light bulb, and a fluorescent lamp.

  Further, in the above embodiment, the light emitting means is continuously turned on. However, the present invention is not limited to this. In the present invention, the light emitting means is blinked, or the lighting and blinking are alternately performed at an appropriate timing. Alternatively, the plurality of light emitting means may be turned on or off at individual timings.

  In the above embodiment, the water flow disturbance projections provided in the power generation chambers 7a and 7b are formed in the entire width direction of the flow paths 43a and 43b. However, the present invention is not limited to this, and in the present invention, The protrusions may be formed in a part of the width direction of the flow path, a plurality of water flow disturbance protrusions may be formed at equal intervals in the width direction, or a plurality of water flow disturbance protrusions may be staggered or randomly You may make it form.

  Moreover, in the said embodiment, the case where this invention is applied to the non-polar type hot-water supply adapter which can be used even if either an external forward pipe or a return pipe is connected to outer pipe connection part 1a, 1b is an example. However, the present invention is not limited to this, and the present invention can also be applied to a polar type hot water inlet adapter in which the connection position of the external forward pipe and the return pipe is specified.

  Further, in the above embodiment, the case where the present invention is applied to a valveless type hot water supply adapter without a flow control valve is described as an example, but the present invention is not limited thereto, The present invention can also be applied to a valve-equipped hot water inlet adapter in which a flow control valve is provided.

  The bathtub hot-water supply port adapter according to the present invention can be used as a hot-water supply fitting for a general household bathtub, for example.

4: In-tank protrusion 42: outer peripheral wall (outer peripheral side, outer surface)
46: LED (light emitting means)
56: Water flow disturbing projection 66: Water flow disturbing projection 7a, 7b: Power generation chamber 72: Oscillating plate (piezoelectric element plate)
73: weight

Claims (7)

There are an outward flow path and a return flow path from outside the bathtub to the inside of the bathtub, hot water from outside the bathtub is discharged into the bathtub through the outward flow path, and hot water from inside the bathtub passes through the return flow path. A hot water adapter for a bathtub that is sent out of the bathtub through,
On both the forward flow path and the return flow path, a power generation chamber through which hot water circulates is provided,
A piezoelectric element plate including a piezoelectric element is attached to the power generation chamber so that an end of the piezoelectric element plate can swing.
A hot water outlet adapter for a bathtub, wherein electric power is generated by operating a piezoelectric element by swinging an end portion of the piezoelectric element plate in accordance with hot water flowing through the power generation chamber.   The hot water adapter for a bathtub according to claim 1, wherein a weight body is attached to the swinging end portion of the piezoelectric element plate.   The hot water outlet adapter for bathtubs according to claim 2, wherein a projection for disturbing water flow is provided in the power generation chamber to disturb hot water flowing through the power generation chamber.   The hot water inlet adapter for a bathtub according to any one of claims 1 to 3, wherein a plurality of the piezoelectric element plates are provided in the power generation chamber. A light emitting means disposed inside the bathtub,
The hot water inlet adapter for a bathtub according to any one of claims 1 to 4, wherein the light emitting means is caused to emit light by electric power generated in the power generation chamber.   The hot water inlet adapter for bathtubs according to claim 5, wherein the light emitting means is constituted by LEDs. Provided with a protruding portion in the tank arranged in the bathtub,
The hot water inlet adapter for bathtubs according to any one of claims 1 to 6, wherein the power generation chamber is provided in the protruding portion in the tank.

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