JP2016151401A - Suction unit for hot water port adapter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a suction port of a suction ring attached to a suction end part of a suction tube from being blocked by water, in a suction unit used in a bathtub hot water port adapter capable of ejecting microbubble water.SOLUTION: A suction ring 2 includes a cylindrical part 3 arranged in a state of being opened upward, and a suction pipe part 5 arranged inside the cylindrical part 3 and in a state of extending in a vertical direction. The suction pipe part 5 has a suction hole 7 extending in the vertical direction. The lower part of the suction pipe part 5 is a connection pipe part 6 connected to a suction end part 20b of a suction tube 20. The suction port of the suction hole 7 is formed at the upper end of the suction pipe part 5.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an air intake unit used for a hot water adapter for a bathtub capable of ejecting microbubble water.

  In recent years, bathing methods in which microbubbles (including nanobubbles), which are microbubbles with a diameter of several tens of μm or less, are bathed in hot water in a bathtub, have a bathing effect, massage effect, diet effect, relaxation 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 disclosed in Patent Documents 1 to 3 is 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. Furthermore, a bubble generating nozzle is incorporated inside the hot water supply adapter, and if necessary, microbubble water, which is hot water mixed with microbubbles, is jetted from the hot water supply adapter into the bathtub and microbubbles are injected into the bathtub. It is trying to generate.

  The hot water outlet adapter is generally attached to the side wall of the bathtub, and hot water treatment for supplying hot water supplied from the outdoor water heater into the bathtub and sucking the hot water in the bathtub into the outdoor water heater. In addition to the memorial process of reheating and returning hot hot water into the bathtub, it is possible to perform a microbubble water ejection process for ejecting microbubble water into the bathtub.

  That is, in such a hot water supply adapter, hot water from a water heater passes through a bubble generating nozzle incorporated in the hot water supply adapter, and the inside of the nozzle becomes negative pressure, and air is sucked from the intake unit by the negative pressure. The water is mixed into the hot water as a microvalve, and microbubble water is ejected.

Japanese Patent No. 4887055 JP 2014-163573 A JP 2014-163574 A

  The intake unit and the hot water supply adapter are connected via an intake tube. That is, the intake end of the intake tube is connected to the intake unit, and the exhaust end of the intake tube is connected to the hot water supply adapter. When air is sucked from the intake unit, the air is supplied to the hot water supply adapter via the intake tube and introduced into the bubble generating nozzle.

  In the intake unit, an intake ring for adjusting the intake amount so as to reduce the intake amount (that is, the intake amount of air) and improving the generation of microbubbles is attached to the intake end of the intake tube. The inventor considered the intake ring shown in FIG.

  The intake ring 102 shown in the figure is made of metal and includes a bottomed cylindrical portion 103 and a connecting pipe portion 106. The intake ring 102 is held in a housing (not shown) of the intake unit with the opening of the cylindrical portion 103 facing upward. A cylindrical dust removal filter 109 that removes dust in the sucked air is filled in the cylindrical portion 103. In the figure, the dust removal filter 109 is composed of an elastic sponge filter.

  The connecting pipe portion 106 is integrally formed in a state of projecting downward at the center of the bottom portion 104 of the cylindrical portion 103, and has an intake hole 107 extending in the vertical direction. The connection pipe portion 106 is connected to the intake end portion 120b of the intake tube 120 in an internally fitted state.

  The upper end portion of the intake hole 107 of the connecting pipe portion 106 is locally formed into a small diameter hole 107a in order to reduce the intake amount to an appropriate amount, and becomes a small diameter hole 107a, and the intake port 107b comprising the upper end opening of the small diameter hole 107a. Is formed at the center of the flat inner surface of the bottom 104 of the cylindrical portion 103.

  However, the intake ring 102 described above has the following drawbacks.

  Since the inner surface of the bottom portion 104 of the cylindrical portion 103 is flat and the intake port 107b is formed on the inner surface, water such as water droplets entering the cylindrical portion 103 can easily enter the intake port 107b. Furthermore, since the diameter of the inlet 107b is very small (for example, 0.06 to 0.2 mm in diameter) and the fluidity of water is worse than that of air, when water enters the inlet 107b, this water causes the inlet 107b to enter. However, there is a problem that it is easily blocked and good intake is easily inhibited.

  The present invention has been made in view of the above-described technical background, and the problem to be solved by the present invention is that, in an intake unit used for a hot water adapter for a bathtub capable of ejecting microbubble water, the intake port of the intake ring is a water drop or the like. It is to make it hard to be blocked by water.

  The present invention provides the following means.

[1] Microbubble air is connected to the intake end of an intake tube whose exhaust end is connected to a hot water adapter for a bathtub capable of ejecting microbubble water, and is connected to the hot water adapter via the intake tube. An intake unit for a hot water supply adapter,
Comprising an intake ring attached to the intake end of the intake tube;
The intake ring is
A cylindrical portion arranged in a state of opening upward;
An intake pipe portion arranged in a state extending in the vertical direction inside the cylindrical portion, and
The intake pipe portion has an intake hole extending in the vertical direction,
The lower part of the intake pipe part is a connection pipe part connected to the intake end part of the intake tube,
An intake unit for a hot water supply adapter, wherein an intake port of the intake hole is formed at an upper end of the intake pipe portion.

[2] The intake pipe part is connected to the cylinder part via a connection wall part arranged between the intake pipe part and the cylinder part,
The intake unit for a hot water supply adapter according to the preceding item 1, wherein the connecting wall portion is provided with a drainage hole for discharging water that has entered the cylindrical portion to the outside of the cylindrical portion.

[3] The upper surface of the connecting wall portion is formed in a convex cone shape centering on the intake pipe portion,
The hot water inlet adapter intake unit according to claim 2, wherein the drain hole is provided at least in a portion of the connecting wall portion on the cylindrical portion side.

[4] A flat surface perpendicular to the vertical direction is formed at the upper end of the intake pipe portion,
The air inlet is formed at the center of the flat surface,
The intake unit for a hot water supply adapter according to any one of the preceding items 1 to 3, wherein a peripheral surface of the flat surface is inclined downward and is connected to an outer peripheral surface of the intake pipe portion.

  [5] The intake unit for a hot water supply adapter according to any one of [1] to [4], wherein the intake ring is made of resin.

  The present invention has the following effects.

  In the preceding item [1], the intake pipe portion is arranged in the vertical direction inside the cylinder portion of the intake ring, and the intake port of the intake hole is formed at the upper end of the intake pipe portion. Even when water such as water droplets enters the tube portion, the intake port can be prevented from being blocked by this water.

  In the previous item [2], since the drainage hole is provided in the connecting wall portion disposed between the intake pipe portion and the cylinder portion, the water entering the cylinder portion can be discharged outside the cylinder portion. Thus, it is possible to reliably prevent the intake port from being blocked by water.

  In the previous item [3], since the upper surface of the connecting wall portion is formed in a convex conical shape centering on the intake pipe portion, the water that has entered the cylinder portion moves upward on the upper surface of the connecting wall portion toward the cylinder portion side. Flowing. Moreover, since the drainage hole is provided at least on the part of the connecting wall part on the cylinder part side, the water flowing toward the cylinder part side can be surely discharged from the drainage hole.

  In the previous item [4], since the intake port is formed in the center of the flat surface at the upper end of the intake pipe portion, when the intake port is drilled from the upper end of the intake pipe portion, It is possible to prevent the position of the tip of the applied drill from being inadvertently shifted. Thereby, breakage of the drill can be suppressed, and the intake port can be easily drilled.

  Further, since the peripheral surface of the flat surface is inclined downward and is connected to the outer peripheral surface of the intake pipe portion, even if water such as water drops adheres to the flat surface, the water is transferred to the intake surface through the peripheral surface. It tends to flow down to the outer peripheral surface of the part. This makes it difficult for water to accumulate on the flat surface, thereby further reliably preventing the intake port from being blocked by water.

  In the previous item [5], since the intake ring is made of resin, the intake ring does not rust with water. Therefore, it is possible to prevent the intake port from being blocked not only by water but also from rust.

FIG. 1 is a perspective view showing the vicinity of a bathtub in a bathroom to which an intake unit and a hot water supply adapter according to an embodiment of the present invention are attached. FIG. 2 is a perspective view showing the intake unit and the hot water supply adapter separately. FIG. 3 is a bottom view of the intake unit. FIG. 4 is a cross-sectional view showing the intake unit connected to an intake tube. 5 is a cross-sectional view taken along line X1-X1 in FIG. FIG. 6 is a plan view of the intake ring of the intake unit. FIG. 7 is a front view of the intake ring. FIG. 8 is a bottom view of the intake ring. 9 is a cross-sectional view taken along line X2-X2 in FIG. FIG. 10 is an enlarged view of a portion Z in FIG. FIG. 11 is a cross-sectional view of an intake ring according to a reference embodiment of the present invention.

  Next, an embodiment of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 and 2, an intake unit 1 according to an embodiment of the present invention is used for a hot water adapter 30 for a bathtub attached to a side wall of a bathtub T disposed in a bathroom. It is provided in a memorial device with a generation function.

  In other words, the hot water supply adapter 30 has a function of generating and ejecting microbubble water M, which is hot water mixed with microbubbles (including nanobubbles), and is supplied from an outdoor water heater (not shown). In addition to hot water treatment for supplying hot water into the bathtub T and a memorial process for sucking the hot water 40 in the bathtub T and sending it to an outdoor water heater, where it is reheated to return hot water into the bathtub T. Furthermore, the microbubble water M is ejected into the hot water 40 in the bathtub T so that microbubble water ejection processing for generating microbubbles in the hot water 40 in the bathtub T can be performed.

  In FIG. 1, reference numeral 36 denotes an operation panel for instructing the hot water supply adapter 30 to perform predetermined processing such as hot water processing and remedy processing, and is attached to a wall surface 45 in the bathroom.

  The micro-bubble water ejection mechanism of the hot-water supply adapter 30 is a method of generating and ejecting micro-bubble water M by sucking air and mixing it into hot water using the venturi effect generated by the flow of hot water supplied into the bathtub T. Is.

  That is, in detail, the hot water supply adapter 30 is provided with a bubble generating nozzle (not shown) in the interior thereof, and the hot water is supplied to the bathtub T while the hot water is supplied from the outdoor water heater into the bubble generating nozzle. By passing through the inside, the inside of the nozzle becomes a negative pressure, and the negative pressure causes the air to be sucked from the intake unit 1 and mixed into the hot water as a microvalve, and the microbubble water M is ejected.

  As shown in FIG. 2, the hot water supply adapter 30 has a micro-bubble water spout 31 provided on a surface facing the inner side with respect to the bathtub T (this surface is referred to as “front surface”). The micro bubble water M is jetted toward the inside of the bathtub T.

  In addition to the micro-bubble water jet port 31, in addition to the micro-bubble water jet port 31, a large number of suction ports 32 that suck in the hot water 40 in the bathtub T and the micro-bubble water M jet mode are permitted mode and prohibit mode. A switch knob 34 and the like for switching to and are provided. On the lower surface of the hot water supply port adapter 30, a discharge port 33 for supplying hot water 40 into the bathtub T in hot water treatment or the like is provided.

  As shown in FIG. 1, the intake unit 1 is connected to a hot water supply adapter 30 via an intake tube 20. When microbubble water M is ejected, air is sucked from the intake unit 1 and the intake tube 20 (detailed). Then, the air is supplied as microbubble air to the hot water supply adapter 30 through the air flow hole 20c) described later in the intake tube 20.

  The intake tube 20 is made of soft synthetic resin or synthetic rubber having flexibility and elasticity, and has a circular cross section. Further, the intake tube 20 has an air circulation hole 20c extending along the intake tube 20 inside thereof (see FIG. 4).

  As shown in FIG. 2, the exhaust end 20 a formed by one end (lower end) of the intake tube 20 is detachably connected to the microbubble air supply port 30 a provided at the upper end of the hot water supply adapter 30. The air discharged from the exhaust end 20a is supplied from the air supply port 30a into the bubble generating nozzle in the hot water supply adapter 30 and mixed into the hot water as microbubbles. On the other hand, an intake end portion 20 b composed of the other end portion (upper end portion) of the intake tube 20 is connected to the intake unit 1.

  As shown in FIGS. 3 to 5, the intake unit 1 is disposed in the bathroom in the present embodiment, and includes an intake ring 2, a housing 10 that houses the intake ring 2, and the like.

  The housing 10 is mainly for ensuring dustproof and dripproofing properties with respect to the intake ring 2, and includes a substrate 11 and a cover member 12 as shown in FIGS. The substrate 11 and the cover member 12 are each made of hard synthetic resin. The cover member 12 is a box-shaped member that is detachably attached to the outer peripheral edge portion of the substrate 11 so as to cover the front surface side of the substrate 11 and whose back side is open.

  A suction cup 14 is attached to the back side of the substrate 11, and the suction unit 14 (housing 10) is detachably attached to the wall surface 45 in the bathroom by the suction cup 14 (see FIG. 1).

  In the present embodiment, the suction cup 14 is configured as attachment means for detachably attaching the intake unit 1 to the wall surface 45 in the bathroom. In the present invention, in the case of the wall surface 45 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.

  The intake ring 2 is made of a hard synthetic resin for improving the generation of microbubbles in the hot water supply adapter 30 by adjusting the intake amount so that the intake amount is reduced. It is housed and held in a fixed position inside.

  As shown in FIGS. 3 and 4, a notch 12 a for avoiding interference with the intake tube 20 is formed on the lower wall of the cover member 12 of the housing 10. The intake end 20b of the intake tube 20 is passed through the notch 12a (see FIG. 4), and air outside the housing 10 can be taken into the inside from the notch 12a. Yes.

  As shown in FIGS. 6 to 9, the intake ring 2 includes a cylindrical portion 3 as a cylindrical portion, an intake pipe portion 5, and the like. As shown in FIGS. 4 and 5, the intake ring 2 is in a state in which the axis J (see FIG. 7) of the cylindrical portion 3 is vertical and the cylindrical portion 3 opens upward in the housing 10. So that it is held.

  That is, the substrate 11 of the housing 10 has a pair of left and right sandwiching pieces 11a and 11a having elasticity projecting toward the surface, a pair of left and right receiving pieces 11b and 11b, and a pair of left and right upper pressing pieces. 11c and 11c are integrally provided as a holding portion for holding the intake ring 2. The outer peripheral surface of the cylindrical portion 3 of the intake ring 2 is sandwiched by both sandwiching pieces 11a and 11a from both left and right sides, and the lower edge of the cylindrical portion 3 is both bottom receiving pieces 11b and 11b from the lower side. And the upper edge of the cylindrical portion 3 is pressed from the upper side with the upper pressing pieces 11c and 11c not closing the opening of the cylindrical portion 3, The intake ring 2 is detachably held so that the cylindrical portion 3 is disposed in a state of opening upward.

  As shown in FIG. 9, the intake pipe portion 5 of the intake ring 2 is arranged in a state extending in the vertical direction along the axis J (see FIG. 7) of the cylindrical portion 3 at the inner central portion of the cylindrical portion 3. The vertical intermediate portion of the intake pipe portion 5 is integrally connected to the lower end portion of the cylindrical portion 3 via a connecting wall portion 4 disposed between the intake pipe portion 5 and the cylindrical portion 3.

  The intake pipe portion 5 has an intake hole 7 extending in the vertical direction along the axis J of the cylindrical portion 3.

  As shown in FIG. 4, the lower portion of the intake pipe portion 5 than the connection position with the connection wall portion 4 is a connection pipe portion 6 that is detachably connected to the intake end portion 20 b of the intake tube 20 in an internally fitted state. ing. In a state where the connection pipe portion 6 is connected to the intake end portion 2 b of the intake tube 20, the intake hole 7 of the connection pipe portion 6 and the air circulation hole 20 c of the intake tube 20 communicate with each other. An annular retaining projection 6 a is formed on the outer peripheral surface of the connecting pipe portion 6. The upper portion of the intake pipe portion 5 above the connection position with the connection wall portion 4 is formed to protrude upward with respect to the connection wall portion 4 (more specifically, the upper surface 4a of the connection wall portion 4).

  As shown in FIG. 9, the upper end of the intake pipe portion 5 is located slightly below the upper end position of the cylindrical portion 3. Further, as shown in FIG. 10, a flat surface 5c having a circular shape in plan view perpendicular to the vertical direction (that is, the axial direction of the cylindrical portion 3) is formed at the upper end. Further, a plurality of annular peripheral surfaces 5 d and 5 e surrounding the flat surface 5 c are inclined downward and connected to the outer peripheral surface 5 f at the upper portion of the intake pipe portion 5. In the present embodiment, the peripheral surface includes a first-stage peripheral surface 5d adjacent to the flat surface 5c and a second-stage peripheral surface 5e adjacent to the outer peripheral surface 5f. The downward inclination angle of the peripheral surface 5e is larger than that of the first peripheral surface 5d. Furthermore, the outer peripheral surface 5f at the upper part of the intake pipe portion 5 is formed in a tapered surface that is significantly inclined with respect to the downward inclination angle of the second peripheral surface 5e.

  In the intake pipe portion 5, the upper end portion of the intake hole 7 is locally formed with a small diameter to reduce the intake amount to an appropriate amount to form a small diameter hole 7 a, and is a plan view including the upper end opening of the small diameter hole 7 a. A circular intake port 7 b is formed at the axial center position of the cylindrical portion 3 in the central portion of the flat surface 5 c at the upper end of the intake pipe portion 5.

  The intake port 7b (small diameter hole 7a) functions as an intake amount adjustment port (intake amount adjustment hole) for adjusting the intake amount to an appropriate amount, and its diameter is very small. For example, the diameter of the portion other than the small diameter hole 7a in the intake hole 7 is set to 0.8 to 1.5 mm, and the diameter of the intake port (small diameter hole 7a) is set to 0.06 to 0.2 mm, for example. .

  As shown in FIG. 9, the upper surface 4 a of the connecting wall portion 4 is formed in a convex cone shape centering on the upper portion of the intake pipe portion 5, and is formed in a convex conical surface shape in this embodiment. On the other hand, the lower surface 4b of the connecting wall portion 4 is formed in a vertical plane with respect to the vertical direction (that is, the axial direction of the cylindrical portion 3).

  Furthermore, since the intake unit 1 is disposed in the bathroom, water droplets are formed on the inner peripheral surface of the cylindrical portion 3 of the intake ring 2 and the outer peripheral surface 5f of the upper portion of the intake pipe portion 5 due to condensation of steam (water vapor) in the bathroom. Easy to adhere. As shown in FIGS. 6 and 8, in order to discharge the water that has entered the cylindrical portion 3 composed of such water droplets or the like downward from the cylindrical portion 3 to the outside of the cylindrical portion 3, One or a plurality of drain holes 8 are provided. In the present embodiment, the number of drain holes 8 is four, and these drain holes 8 are arranged at least on the cylindrical wall 3 side of the connecting wall 4 and spaced apart in the circumferential direction around the intake pipe 5. The plan view shape of each drainage hole 8 is formed in a fan shape. Further, the portion on the cylindrical portion 3 side on the inner peripheral surface of each drain hole 8 is connected to the inner peripheral surface of the cylindrical portion 3 so as to be flush with each other in the vertical direction.

  Further, a dust removal filter (see FIG. 11, 109) that removes dust in the sucked air is not disposed inside the cylindrical portion 3 of the intake ring 2. Therefore, the upper end of the intake pipe portion 5 is not covered with the dust removal filter and is exposed in the entire circumference and the upper direction in the casing 10.

  In the intake unit 1 of the present embodiment, when the hot water supply adapter 30 enters the micro bubble water M ejection permission mode, air is sucked from the intake port 7 b at the upper end of the intake pipe portion 5 of the intake unit 1. Then, the air passes through the intake tube 20 and is supplied from the air supply port 30a of the hot water supply adapter 30 into the bubble generating nozzle of the hot water supply adapter 30, and is mixed in the hot water flowing through the nozzle as microbubbles. Thereby, the micro bubble water M is produced | generated and it injects in the bathtub T from the micro bubble water ejection port 31. FIG.

  The intake unit 1 of the present embodiment has the following advantages.

  Since the intake pipe portion 5 is arranged inside the cylindrical portion 3 of the intake ring 2 so as to extend in the vertical direction, and the intake port 7b of the intake hole 7 is formed at the upper end of the intake pipe portion 5, the intake ring 2 Even when water such as water drops enters the inside of the cylindrical portion 3, it is possible to prevent the intake port 7 b from being blocked by this water. Therefore, a good intake state can be maintained over a long period of time.

  Further, since the drainage hole 8 is provided in the connecting wall portion 4, the water that has entered the cylindrical portion 3 can be discharged out of the cylindrical portion 3, thereby reliably blocking the intake port 7b with water. Can be prevented.

  Furthermore, since the upper surface 4a of the connecting wall portion 4 is formed in a convex conical surface with the intake pipe portion 5 as the center, the water that has entered the cylindrical portion 3 flows over the upper surface 4a of the connecting wall portion 4 into the cylindrical portion 3. It flows toward the side. Further, since the drain hole 8 is provided at least in the cylindrical part 3 side of the connecting wall part 4, the water that flows toward the cylindrical part 3 can be reliably discharged from the drain hole 8.

  Further, since the intake port 7b is formed at the center of the flat surface 5c at the upper end of the intake pipe unit 5, when the intake port 7b is drilled from the upper end of the intake pipe unit 5 with a drill, the intake pipe unit 5 It is possible to prevent the position of the tip of the drill applied to the upper end from being accidentally shifted. Thereby, breakage of the drill can be suppressed, and the air inlet 7b can be easily drilled.

  Further, since the peripheral surfaces of the flat surface 5c (the first step peripheral surface 5d and the second step peripheral surface 5e) are inclined downward and connected to the outer peripheral surface 5f of the intake pipe portion 5, the flat surface 5c is flat. Even if water such as water droplets adheres to the surface 5c, the water easily flows down to the outer peripheral surface 5f of the intake pipe portion 5 along the peripheral surfaces 5d and 5e. Thereby, it becomes difficult for water to collect on the flat surface 5c, and blockage of the intake port 7b by water can be prevented more reliably.

  Furthermore, since the intake ring 2 is made of resin, the intake ring 2 does not rust with water. Therefore, it is possible to prevent not only the air inlet 7b from being blocked by water but also the air inlet 7b from being blocked by rust.

  Furthermore, since the upper end of the intake pipe portion 5 is not covered with the dust removal filter, the following advantages can be obtained.

  That is, if the dust removal filter 109 shown in FIG. 11 is disposed in the cylindrical portion 3, the upper end (and the intake port 7 b) of the intake pipe portion 5 is covered with the dust removal filter 109 from above. become. In this case, when water such as water droplets adheres to the dust removal filter 109, this water enters the inside of the filter 109 and the intake port 7b is likely to be blocked with this water. On the other hand, in this embodiment, since the upper end of the intake pipe portion 5 is not covered with the dust removal filter, it is possible to prevent the intake port 7b from being blocked by water such as water droplets adhering to and entering the dust removal filter. it can.

  Furthermore, in this embodiment, the intake unit 1 is disposed in the bathroom. Therefore, warm air in the bathroom can be sucked in as microbubble air. Thereby, the warm microbubble water M can be ejected in the hot water 40 in the bathtub T, and the temperature fall of the hot water 40 in the bathtub T by sucking outdoor cold air as microbubble air can be suppressed. . Further, outdoor dust and odors are not sucked from the intake unit 1, contamination by dust and odors can be effectively suppressed, and a comfortable bathing environment can be obtained. In addition, the intake tube 20 is arranged in an exposed state in the bathroom. Therefore, the intake tube 20 can be easily installed, maintenance and inspection are easy, and repair and replacement at the time of failure are also easily performed. be able to.

  Further, the exhaust end 20 a of the intake tube 20 is detachably attached to the microbubble air supply port 30 a of the hot water supply port adapter 30. Therefore, the intake tube 20 can be removed from the hot water supply adapter 30 when it is not necessary, such as during bathing, and the bathtub T can be cleaned without worrying about the presence of the intake tube 20, for example. Further, since the intake end portion 20b of the intake tube 20 is detachably attached to the connection pipe portion 6 of the intake ring 2 of the intake unit 1, the intake tube 20 is removed from the intake unit 1 when it is not necessary, such as during bathing. be able to. Therefore, also from this point, cleaning in the bathroom can be easily performed without worrying about the presence of the intake tube 20.

  Furthermore, since the intake unit 1 includes the suction cup 14 as an attachment member that is detachably attached to the wall surface 45 in the bathroom, the intake unit 1 can be attached to a desired position in the bathroom, and is convenient and versatile. Can be improved.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention.

  For example, the shape of the cylindrical portion of the intake ring is cylindrical in the present embodiment, but in the present invention, other shapes such as a rectangular tube (eg, a rectangular tube, a hexagonal tube, an octagonal tube) are excluded. Not what you want.

  Furthermore, although the upper surface of the connecting wall portion of the intake ring has a convex conical surface shape in the present embodiment, in the present invention, for example, a convex pyramid surface shape (for example, a convex quadrangular pyramid surface shape, a convex hexagonal pyramid surface shape, a convex shape) It is not excluded that the shape is an octagonal pyramid surface.

  INDUSTRIAL APPLICABILITY The present invention can be used for an intake unit used in a hot water inlet adapter for bathtubs that can eject microbubble water.

1: Intake unit 2: Intake ring 3: Cylindrical part (cylinder part)
4: Connecting wall portion 5: Intake pipe portion 5c: Flat surface 5d, 5e: Peripheral surface 5f: Outer pipe outer peripheral surface 6: Connection pipe portion 7: Intake hole 7b: Inlet port 8: Drain hole 10: Housing 20 : Intake tube 20a: Exhaust end 20b: Intake end 30: Hot water supply adapter M: Micro bubble water

Claims (5)

It is connected to the intake end of an intake tube whose exhaust end is connected to a hot water adapter for a bathtub that can eject microbubble water, and microbubble air is supplied to the hot water adapter via the intake tube An intake unit for the hot water adapter,
Comprising an intake ring attached to the intake end of the intake tube;
The intake ring is
A cylindrical portion arranged in a state of opening upward;
An intake pipe portion arranged in a state extending in the vertical direction inside the cylindrical portion, and
The intake pipe portion has an intake hole extending in the vertical direction,
The lower part of the intake pipe part is a connection pipe part connected to the intake end part of the intake tube,
An intake unit for a hot water supply adapter, wherein an intake port of the intake hole is formed at an upper end of the intake pipe portion. The intake pipe part is connected to the cylinder part via a connection wall part arranged between the intake pipe part and the cylinder part;
The intake unit for a hot water inlet adapter according to claim 1, wherein a drainage hole for discharging water that has entered the cylindrical portion to the outside of the cylindrical portion is provided in the connecting wall portion. The upper surface of the connecting wall portion is formed in a convex cone shape centered on the intake pipe portion,
The hot water inlet adapter intake unit according to claim 2, wherein the drainage hole is provided in at least a portion of the connecting wall portion on the cylindrical portion side. A flat surface perpendicular to the vertical direction is formed at the upper end of the intake pipe portion,
The air inlet is formed at the center of the flat surface,
The hot water inlet adapter intake unit according to any one of claims 1 to 3, wherein a peripheral surface of the flat surface is inclined downward and is connected to an outer peripheral surface of the intake pipe portion.   The intake unit for a hot water supply adapter according to any one of claims 1 to 4, wherein the intake ring is made of resin.

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