JPH032277Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a bubble ejector for a bubble bath that squirts bubble water into a bathtub.

(Prior Art) Conventionally, a bubble ejector for mixing air into water discharged from a circulation pump and ejecting bubble water into a bathtub has been used as shown in a side cross-sectional view in Fig. 3 and a front view in Fig. 4. The water discharged from the circulation pump flows into the inlet 51.
The water flows into the gas-liquid mixing chamber 54 from the tapered water passage hole 53 of the water jetting nozzle 52, and the negative pressure phenomenon generated in the gas-liquid mixing chamber 54 at the time of this jetting causes Air intake pipe 55
The external air taken in from the air intake port 56 is sucked into the gas-liquid mixing chamber 54 and mixed with the jet water jetted from the water jet nozzle 52 to generate bubbly water. The bubble water is spouted into the bathtub from a bubbly water spout nozzle 58 attached to the chamber 57.

The bubble water spouting nozzle 58 is installed in the nozzle mounting chamber 57.
It is supported by the coil spring 59 that is elastically applied to the bathtub and the inner diameter surface of the cylindrical shaft 61 of the cover 60 that is inserted from inside the bathtub.The support surface is formed in a spherical shape, so that the bubbly water jets out. The nozzle 58 is configured so that it can be rotated arbitrarily by pinching a collar 62 formed at the tip. In other words, the direction in which the bubble water is ejected from the bubble water injection nozzle 58 can be changed arbitrarily.

(Problems to be Solved by the Invention) According to the above-mentioned conventional bubble jet device for a bubble bath, the direction in which the bubble water is jetted into the bathtub from the bubble water jet nozzle 58 can be arbitrarily changed. However, since the spherical outer peripheral surface of the bubbly water spouting nozzle 58 is supported by the coil spring 59 and the inner diameter surface of the cylindrical shaft 61 of the cover 60, the bubbly water spouting direction is set at the center of the bubbly water spouting nozzle 58. Even if the nozzle 58 is set to be tilted from the axial direction, the bubbly water jetting force causes the bubbly water jetting nozzle 58 to gradually rotate its bubbly water spouting direction in the centripetal direction, that is, in the direction in which the bubbly water is spouted straight. However, there was a problem in that it was extremely difficult to always maintain the ejecting direction of bubble water in a constant direction.

Therefore, in the present invention, the bubbly water jetting nozzle is rotated by the bubbly water spouting force, so that the bubbly water spouting direction is not changed, and the bubbly water is spouted in an arbitrary direction according to the slope of the inner wall surface of the bathtub. It is an object of the present invention to provide a bubble ejector for a bubble bath that can emit ejected water.

In addition, conventional bubble bath bubble ejectors have many components connected by pipes, making it extremely difficult to install them in a bathtub, and requiring two or more mounting holes to be drilled in the bathtub. There was a problem.

(Means for Solving the Problems) The technical means for solving the above problems consists of an inlet for inflowing water discharged from a circulation pump, an inlet installed coaxially with the inlet, and an inlet for discharging water from the circulation pump. a water spouting nozzle in which a hole through which the discharged water is jetted is formed in an axially penetrating shape and in a tapered shape, and a nozzle mounting hole for mounting the water jetting nozzle coaxially with the inflow port. an air suction port to which an air suction pipe for sucking air from the outside is connected; and an air suction port formed coaxially with the nozzle mounting hole to mix the air and the jet water jetted from the water jet nozzle. A gas-liquid mixing chamber for generating bubble water, a water passage hole for passing the bubble water, and a ring-shaped groove formed on the outer circumferential surface of the bubble. A water spouting nozzle is connected coaxially with the gas-liquid mixing chamber, and the bubbly water spouting nozzle is rotatably inserted from the outside, and the groove is formed on the outer peripheral surface of the bubbly water spouting nozzle. On the other hand, there is a nozzle mounting chamber in which a small hole is formed for passing a fixing member inserted from the outside to prevent the bubble ejecting nozzle from being pulled out, and a donut-shaped hole is formed on the outer periphery concentrically with the nozzle mounting chamber. An integrally formed concave space into which warm water in the bathtub can be injected, and an outlet that communicates with the concave space and can be connected to a pipe for returning the hot water to the circulation pump, and is attached to the bathtub wall surface. It is important to configure the system so that it can be used.

(Function) According to the bubble jet device for a bubble bath having the above configuration, the discharge water discharged from the circulation pump flows in from the inlet, and further passes through the water passage hole formed in the tapered shape and exits from the water jet nozzle. It is ejected into the gas-liquid mixing chamber. Due to the negative pressure phenomenon that occurs when water is ejected into the gas-liquid mixing chamber, air is drawn into the gas-liquid mixing chamber from the outside through the air intake port, and water and air are mixed in the gas-liquid mixing chamber, creating bubble water. is generated.

This bubbly water is forced into the nozzle mounting chamber and is ejected into the bathtub through the water passage hole of the bubbly water jetting nozzle inserted into the nozzle mounting chamber.

The water passage hole of the bubbly water jetting nozzle is formed in a penetrating shape with a slight angle to the axis to correspond to the slope of the inner wall surface of the bathtub, so the bubbly water jetting nozzle can be inserted into the nozzle installation chamber. Afterwards, the direction of the water passage hole can be arbitrarily set so that the bubble water is spouted in the desired direction of the bathtub. Furthermore, a fixing member is inserted from the outside into the groove formed in the bubbly water spouting nozzle to prevent the bubbly water spouting nozzle from coming off. Since the water passage hole of the bubbly water jetting nozzle is formed at an inclined angle, the bubbly water is always spouted in the set direction without rotating in the axial direction.

In addition, a concave space is integrally formed on the outer periphery of the nozzle installation chamber, and when the bubble ejector is attached to the wall of the bathtub, this concave space opens to the inside of the bathtub, and the hot water in the bathtub is poured into this concave space. Moreover, since the concave space is connected to an outlet to which a return pipe to the circulation pump can be connected, hot water in the bathtub can be sucked into the concave space and returned to the circulation pump through the outlet. be able to. Moreover, since these functional parts of the foam ejector are integrated, if one mounting hole is provided on the wall of the bathtub, the foam ejector can be easily installed in this mounting hole, making it easy to install. In this state, the functional members for ejecting bubbles into the bathtub are installed all at once, and the construction is extremely simple, and there is no difficulty in constructing the pipes as in the past.

(Example) Next, an example of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 shows a longitudinal sectional view of a foam ejector 15 attached to the inner wall 2 of the bathtub. Moreover, FIG. 2 is a front view of the foam ejector 15 viewed from the inside of the bathtub. FIG. 1 shows a cross section taken along the line B--B in FIG. 2. In addition, in the following explanation,
Descriptions indicating directions such as bottom, left, right, etc. indicate directions on the drawings.

Discharge water discharged from a circulation pump etc. provided outside, that is, hot water is sucked in from a hot water inlet (not shown) formed at the bottom of the wall of the bathtub, and the hot water is returned to the circulation pump, and then the hot water is returned to the circulation pump. An inlet 3 to which a water pipe (not shown) is connected to which the discharged water (warm water) discharged under pressure is connected.
is formed at the left end of the foam ejector 15 by threading its inner diameter surface. A nozzle mounting hole 4 connected to the inlet 3 and having an inner diameter slightly smaller than the inner diameter of the inlet 3 is formed coaxially with the inlet 3.

A thread is machined on the inner diameter surface of this nozzle mounting hole 4, and a water spout nozzle 5 for passing and spouting hot water that has flowed in from the inlet port 3 is installed in the threaded portion.
A water jet nozzle 5 is attached coaxially with the inlet 3. The water jetting nozzle 5 has a water passage hole 5A through which the warm water is passed and jetted from the tip thereof, and is formed in a tapered shape that is axially penetrating and narrowed at the tip side. The tip of the water passage hole 5A is used to mix the jet water jetted out from the water passage hole 5A with the air sucked in from the outside due to the negative pressure phenomenon generated at the time of jetting, and to generate bubbly water. It faces the gas-liquid mixing chamber 6.

An air suction port 8 for screwing and connecting an air suction pipe 7 for sucking the air from the outside so as to communicate with the gas-liquid mixing chamber 6 is formed in a threaded state on its inner diameter surface.

Further, a bubbly water spouting nozzle 9 is installed in a nozzle mounting chamber 10 for passing the bubbly water coaxially with the gas-liquid mixing chamber 6 and spouting it into the bathtub. The nozzle mounting chamber 10 has an open end face facing the inner side of the bathtub, and is formed so that the bubble water spouting nozzle 9 can be inserted from inside the bathtub. Further, a small diameter screw hole 11 is formed upwardly so as to pass through the nozzle mounting chamber 10 at right angles.

A small ring-shaped groove 12 is formed in the screw hole 11 on the outer diameter surface of the bubble water spouting nozzle 9 that is fitted into the nozzle mounting chamber 10 and is fitted into the inner diameter surface of the nozzle mounting chamber 10.
It is formed at a position that matches the Therefore, when the bubbly water spouting nozzle 9 is inserted into the nozzle mounting chamber 10 and the bubbly water spouting nozzle 9 is to be fixed to the nozzle mounting chamber 10 in a non-removable manner, the fixing bolt 13 is inserted through the screw hole 11. Then, the tip of the fixing bolt 13 is inserted into the groove 12.

The water passage hole 9A formed in the bubbly water spout nozzle 9 is at a slight angle with respect to the axis of the bubbly water spout nozzle 9.
For example, it has an inclination angle of about 5 degrees, and by rotating the bubbly water spouting nozzle 9 by pinching a knob 14 formed on the end face of the bubbly water spouting nozzle 9 with the fixing bolt 13 attached. , it is configured such that the direction of ejection of bubble water ejected from the water passage hole 9A can be arbitrarily changed.

Therefore, even if the inner wall surface of the bathtub is in a tilted state, the jetting direction of the bubble water generated in the gas-liquid mixing chamber 6 can be arbitrarily changed according to the wall surface. Since the bubbly water can be spouted in the desired direction and the bubbly water spouting nozzle 9 is prevented from coming off due to the bubbly water jetting force, it is prevented from coming off with the fixing bolt 13. You can make bubble water squirt out. Further, a donut-shaped concave space 16 is provided concentrically with the nozzle mounting chamber 10 of the foam ejector 1 at its outer periphery.
is formed, and warm water in the bathtub can be drawn into this concave space 16.

The concave space 16 has an end face facing the bathtub that is open all the way around. Further, the lower part of the concave space 16 is communicated with an outlet 17 to which a return pipe (not shown) for returning hot water drawn into the concave space 16 from the bathtub to the circulation pump is connected.

On the other hand, a strainer 18 is formed at a position corresponding to the concave space 16, and a cover 19, which is hollow in the center to expose the bubbly water jetting nozzle 9, is attached to the main body of the foam jetting device 15. is fitted into the A knob 20 is attached to the cover 19 to be pinched when attaching or detaching the cover 19 to the main body of the foam ejector 15.

Therefore, this bubble ejector 15 has the feature that the bubbly water ejecting part and the suction part for inhaling hot water from the bathtub are integrally formed, so that only one opening is required for the bathtub.

(Effects of the invention) The present invention has an inlet for letting water discharged from the circulation pump flow in, and a hole that is installed coaxially with the inlet and allows the water discharged from the inlet to be ejected. A water jet nozzle formed in an axially penetrating shape and a tapered shape, a nozzle mounting hole for installing the water jet nozzle coaxially with the inlet, and an air suction pipe for sucking air from the outside. an air inlet to which is connected, and a gas-liquid mixing chamber coaxially connected to the nozzle mounting hole to mix the air and the jetted water jetted from the water spouting nozzle to generate bubbly water. and a bubbly water spouting nozzle in which a water passage hole for passing the bubbly water is formed in a penetrating shape with an inclined angle and a ring-shaped groove is formed on the outer peripheral surface, and a bubbly water jetting nozzle that is coaxial with the gas-liquid mixing chamber. to allow the bubbly water jetting nozzle to be rotatably inserted from the outside and to prevent the bubbly water jetting nozzle from being removed from the groove formed on the outer peripheral surface of the bubbly water jetting nozzle. A nozzle mounting chamber in which a small hole is formed for passing a fixing member inserted from the outside, and a donut-shaped integrally formed outer periphery concentrically with the nozzle mounting chamber, through which hot water in the bathtub can be injected. This is a bubble jet device for a bubble bath that is attached to the wall of a bathtub and is integrally equipped with a concave space and an outlet that communicates with the concave space and can be connected to a pipe for returning the hot water to the circulation pump. Only one mounting hole is required, and it can be installed compactly on the bathtub wall.
The workability is extremely good, and the piping connection can be easily completed by connecting to the existing circulation route equipped with a circulation pump, and there is no need to separately form a suction hole in the bathroom wall like in the past. This has the effect that the bathtub itself can be easily molded, and the angle of the bubbly water jet nozzle can be changed as necessary to freely jet the bubbly water in the desired direction.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an embodiment, FIG. 2 is a front view of the embodiment, and FIGS. 3 and 4 are diagrams illustrating the structure of a conventional foam ejector. 15... Foam ejector, 2... Bathtub wall, 3... Inflow port, 4... Nozzle mounting hole, 5... Water ejecting nozzle,
6... Gas-liquid mixing chamber, 7... Air suction pipe, 8... Air suction port, 9... Bubbly water jetting nozzle, 9A... Water passage hole, 10... Nozzle mounting chamber, 11... Screw hole,
12...groove, 13...retention bolt, 16...concave space, 17...outlet.

Claims (1)

[Scope of utility model registration request] an inlet for letting water discharged from the circulation pump flow in, and a hole that is installed coaxially with the inlet and that is axially penetrating and has a pre-drawn taper for allowing the discharged water that has flowed in from the inlet to be ejected. a water jet nozzle formed in a shape, a nozzle mounting hole for installing the water jet nozzle coaxially with the inlet, and an air suction port to which an air suction pipe for sucking air from the outside is connected; a gas-liquid mixing chamber coaxially connected to the nozzle mounting hole and configured to mix the air and the jet water jetted from the water jet nozzle to generate bubbly water; a bubbly water spouting nozzle in which a water passage hole is formed in a penetrating shape with an inclined angle and a ring-shaped groove is formed on the outer peripheral surface; a fixing member inserted from the outside in order to allow the nozzle to be rotatably inserted from the outside and to prevent the bubble ejecting nozzle from being removed from and removed from the groove formed on the outer peripheral surface of the bubble water ejecting nozzle; A nozzle mounting chamber in which a small hole is formed for passage through the nozzle mounting chamber, a donut-shaped concave space concentrically formed on the outer periphery of the nozzle mounting chamber and into which warm water in the bathtub can be injected, and communicating with the concave space. A bubble ejector for a bubble bath that is integrally equipped with an outlet to which a pipe can be connected for returning the hot water to a circulation pump, and that is attached to a wall surface of a bathtub.