JPH0326262A - Bubble generating bathtub capable of adjusting bubble quantity - Google Patents

Abstract

PURPOSE:To allow a bathing person to enjoy diversified blow forms by forming a bath hot water force-feeding passage from plural parallel branch bath hot water forced feed passages, connecting an air intake part and each bath hot water force-feeding passage by allowing them to communicate with each other through plural intake air distributing pipes, and controlling a bubble quantity control valve provided on each intake air distributing pipe. CONSTITUTION:A bath hot water circulating passage D is constituted of a bath hot water suction passage 10 for feeding bath hot water to a circulating pump P from a bubble generating bathtub A, and a bath hot water force-feeding passage 11 for feeding path hot water to the bathtub A from the pump P, and as for the bath hot water force-feeding pipe 11, the other end is connected to foot side/belly side/back side exhaust nozzles 2, 3 and 4. In this state, a valve driving device M2 for driving bubble quantity control valves Va-1, Va-2 and Va-3 attached to intake air distributing pipes 5a, 5b and 5c for connecting an air intake part 5 and the bath hot water force- feeding passage 11 is driven by a control signal from a control part C. In such a way, by operating the bubble quantity control valves Va-1, Va-2 and Va-3, and only adjusting its opening/closing quantity, the bubble quantity mixed in bath hot water exhausted into a bathtub body 1 from the exhaust nozzle 2, 3 and 4 can be adjusted easily.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a bubble-generating bathtub that is highly safe during bathing and allows inexpensive blow control.

(B) Conventional technology Conventionally, as one form of bathtub, there is a bubble-generating bathtub that is equipped with a bubble-generating device separate from the bathtub body, and the bubble-generating bathtub uses the bubble-generating device to generate bubbles in the bathtub. By doing so, the air bubbles are designed to massage the body and enhance the feeling of bathing. That is, such a bubble-generating bathtub is provided with a spout on the side wall of the bathtub body, a circulation pump that circulates bath water via a circulation pump is connected to the spout, and an ejector effect is installed near the spout. An air suction unit is installed that allows air to be mixed into the bath water.

With this arrangement, by operating the circulation pump, bath water can be spewed out from the spout on the side wall of the bathtub body, and at the time of spouting, air is sucked under negative pressure from the air suction part, and the air is sucked into the bath water. By mixing air into the bathtub and ejecting the air-mixed bath water from the spout, air bubbles are generated in the bathtub and applied to the body of the bather, thereby increasing the massaging effect. , as described in Japanese Utility Model Application Publication No. 63-100035, the ejection force of bath water can be changed periodically by controlling an electric motor used as a bomb drive device for driving a circulation pump with an inverter. has also been proposed.

(c) Problems to be Solved by the Invention However, the above-mentioned bubble-generating bathtub still had the following drawbacks. In other words, in the bubble-generating bathtub described above, changes in the amount and pressure of the bath water are controlled exclusively by the drive control of the circulation pump, but since only one circulation pump is used, it is necessary to use a large-capacity pump. Therefore, it is necessary to have a large installation space and to make the electric motor and its control device larger. In addition, when controlling the electric motor using an inverter to change the amount and pressure of the bath water, the bathtub and the circulation pump are not sufficiently insulated due to the high frequency components generated during the switching operation by the switching element. In this case, the leakage current flows to the bathtub side, increasing the danger to the human body.

Furthermore, since inverters are still expensive, bubble generating bathtubs are also expensive.

An object of the present invention is to provide a bubble-generating bathtub that can solve the above problems.

(2) Means for Solving the Problems The present invention provides a bath water circulation flow path consisting of a bath water suction flow path and a bath water forced flow path between the bathtub body and the circulation pump. An air intake section is connected in communication with the hot water forced flow channel, and the air taken in by the air intake section is mixed into the bath water in the bath water forced flow channel, and air bubbles are mixed into the bathtub body from the plurality of jetting nozzles. In a bubble-generating bathtub that can spout out bath water, the forced bath water flow path is formed from a plurality of parallel branch forced flow paths, and the air intake section and each forced bath water flow channel are A plurality of intake air distribution pipes are connected to each other, and each intake air distribution pipe is provided with a bubble W control valve. This invention relates to a bubble-generating bathtub that is capable of adjusting the amount of bubbles, which is characterized by being able to finely adjust the amount of bubbles in the bath water that is spouted into the hot water body. (E) Actions and Effects ■ In the present invention, the air intake part and the bath water forced flow path are connected by an intake air distribution pipe, and each distribution pipe is provided with an air bubble amount control valve, and a valve driving device for the valve is provided. Since this is controlled by the control device, it is easy to control the amount of air bubbles that are mixed into the bath water that is spouted from the jet nozzle into the bathtub body through the air intake part and the intake air distribution pipe. The blow pressure can be freely and finely adjusted, and the bather can enjoy various types of blows with different amounts of mixed air bubbles, that is, different perceived intensities. ■Since the blow form can be changed for each jet nozzle, you can enjoy more diversified blow forms.

■The installation space required by a large-capacity circulation pump can be eliminated, making bathroom design easier.

■Since high-grade control such as an inverter required for drive control of a large-capacity circulation pump can be eliminated, the control device can be made inexpensive.

■Each spout nozzle can spout bath water mixed with air bubbles, so even if one of the jet nozzles becomes unusable due to a malfunction, the other jet nozzles can spout bath water mixed with air bubbles. At the same time, you can enjoy a bubble bath by finely adjusting the amount of bubbles.

■It is possible to change the blow mode without inverter control, and the possibility of life-threatening electric shock accidents caused by high-frequency commands can be reduced as much as possible.

(F) Example Hereinafter, the bubble-generating bathtub A according to the present invention will be specifically explained with reference to the example shown in the attached drawings.

Figures 1 and 2 show the overall structure of the bubble-generating bathtub A. The bubble-generating bathtub A has a box-shaped bathtub body 1 with an opening on the top, and a foot side on the front and rear walls and on the left and right side walls, respectively. Spout nozzle 2, dorsal spout nozzle 3. A ventral jet nozzle 4 is provided.

The bathtub body 1 has a flange-like edge 1 having a constant width on the periphery.
a, and an air intake portion 5 is provided on the same edge portion 1a.

Further, the air intake portion 5 is provided with an air bubble amount adjustment valve Va and a motor gate 2 for driving a valve body for air bubble amount adjustment that drives the air bubble amount adjustment valve Va.

In addition, the bubble-generating bathtub A is provided with a pump protection case 9 on the outer periphery of the bathtub body l, and inside the case 9, as shown in FIGS. A circulation bomb P that circulates the bath water, an iIt filter R that filters the bath water circulated by the circulation pump P, a pump drive device M that drives the bomb P, and a pump drive device M that will be described later. A control section C that controls the driving of the nozzle driving device Ml, the motor M2 for driving the valve body for controlling the amount of air bubbles, and the driving device of the electric three-way valve Q is provided.

Note that Q1 is a waste pipe for discarding a part of the bath water during backwashing.

A bath water circulation passage D is interposed between the bathtub body 1 and the circulation pump P described above.

That is, the bath water circulation flow path D includes a bath water suction pipe (bath water suction flow path) 10 for sending bath water from the bubble generating bathtub A to the circulation bomb P, and a bath water suction pipe (bath water suction flow path) for sending bath water from the bubble generating bathtub A to the circulation bomb P, and a bath water circulation flow path D for sending bath water from the circulation pump P to the same bath tiA. It is more careful with the bathtub forced-feeding vibe (bathtub forced-feeding channel) 11 for sending hot water. The bath water suction pipe 10 has one end opened at the bottom of the bathtub body l to form a suction port 22,
The other end of the circulation pump P is connected to the water supply port of the same circulation pump P.
I try to inhale the bath water. On the other hand, the forced bath water pipe 1l has one end connected to the circulation pump P.
The other end is connected to the foot side, ventral side, and dorsal side jet nozzles 23 and 4, respectively.

Further, as shown in FIG. 4, each of the jet nozzles 2, 3.4 is formed by a variable jet volume type jet nozzle. That is, as shown in FIG. 4, there is a nozzle throat 39 at the front.
The nozzle casing 40 has an air entrainment chamber 4l at the rear thereof, and a flow rate adjustment chamber is connected to the rear of the entrainment chamber 4l via a partition wall 43 provided with a communication hole 42. 44 are formal precepts.

A communication hole 42 is provided in the rear wall 45 of the flow rate adjustment chamber 44.
A nozzle driving device H1 is attached to adjust the opening amount of the nozzle throat 39 to finely adjust the spouting amount and jetting pressure of bath water spouted from the nozzle throat 39.

In this embodiment, the old nozzle drive device uses a stepping motor 46a and a valve shaft 46 to control the rotational movement of the stepping motor 46a.
a ball screw (not shown) for converting forward and backward movement;
The valve body 47 is attached to the tip of the valve shaft 46 and opens and closes the above-mentioned communication hole 42 to adjust the jetting of bath water from the nozzle throat 39 and the jetting pressure.

Due to this horizontal control, the nozzle driving device is driven by a control signal from a control unit C, which will be described later, to advance and retreat the valve shaft 46 and the valve body 47 that is integrated with the valve shaft 46 toward the communication hole 42. By adjusting the gap, that is, the opening amount, the amount and pressure of the bath water spouted into the bathtub body 1 can be easily adjusted.

Further, as shown in FIG. 3, a pressure detection sensor 12 for detecting the pressure of the bath water being forcedly fed into the pipe 11 is installed in the middle of the pipe 11 for forcing bath water.

Then, a detection signal from the pressure discharge sensor l2 is sent to a control section C, which will be described later, and the control section C controls the drive of the nozzle drive device, adjusts the opening amount of the valve body 47, and controls each jet. The ejection pressure and amount of bath water ejected from the nozzle 2.3.4 can be controlled as a whole or separately.

Moreover, the pressure detection sensor l2 can also be used as a water level sensor for detecting the amount of bath water in the bathtub body l.

In addition, as shown in FIG.
．． 5c is connected. The intake air distribution pipe 5a. 5b, 5c, air can be mixed into the bath water, and the bath water mixed with air bubbles can be jetted out from the jet nozzles 2, 3.4. The present invention is essentially characterized by the ability to finely adjust the amount of air bubbles mixed into the bath water in the bathtub body l in such an air intake structure. That is, as shown in FIG. 5, in this embodiment, the air intake section 5 includes a plurality of intake air distribution pipes 5a, 5b. 5c to each jet nozzle 2, 3.4.

That is, each intake air distribution pipe 5a. 5b and 5c are in communication with compartments a, b, and c defined within the air intake portion 5 by vertical partition walls 50 and 51, as shown in FIGS. 5 and 6. Bubble amount adjustment valves Va-1, Va~2, and Va-3 are attached to the communication connection portions, respectively, and each air bubble amount adjustment valve Va-1+Va-2+Va-3 is connected to a valve drive device i.
It is configured to be driven by 1M2. A stepping motor or the like can be used as the valve drive device M2.

With this arrangement, the valve driving device M2 is driven by a control signal from the control section C, which will be described later, to control each bubble amount adjusting valve V.
By adjusting the opening/closing amount of a-1+Va-2+Va-3, the amount of bubbles mixed into the bath water spouted into the bathtub body 1 can be easily adjusted.

In this embodiment, as shown in FIGS. 5 and 6, the air intake section 5 has a sound-muffling internal structure. That is, each compartment a, b, c has two horizontal partitions 52, 53.
A layered chamber consisting of two stages a-1+a-2+b-Lb
It is divided into -2+c1 and c-2. The upper layered chamber a-Lb-11c-1 communicates with an air intake opening 54 provided in the outer casing 21a of the operating unit/light receiving unit 2l, which will be described later, via an upper muffling cylinder 55 provided in the horizontal partition wall 52. are doing.

On the other hand, the upper layered chambers a-1, b-1, and c-1 are connected to the lower layered chambers a-1 through the lower muffling cylinder 56 provided on the horizontal partition wall 53.
2, b-2. It is connected to c-2.

With this structure, the noise generated during air intake can be reduced as much as possible. Next, the bomb drive device M and the nozzle drive device W old. The structure of the control section C for controlling the valve drive device M2 will be explained. The control unit C includes a microprocessor M as shown in FIG.
The PU and input/output interface 13.14 consists of a memory 15 consisting of ROM and RAM, and a timer l6. In the above structure, the input interface l3
includes a detection sensor 6 for use in detecting an abnormality in the circulation pump P, a valve reference position detection sensor 17 for detecting the amount of opening and closing of the valve body 47 caused by the drive of the old nozzle drive device, and a bubble volume control valve V.
a-1. Va-2. A valve reference position detection sensor l8 detects the opening/closing amount of Va-3, a pressure detection sensor 12 detects the water pressure of the forced bath water pipe 1l, a bath water temperature detection sensor T that detects the temperature of the bath water in the bathtub body l. A light-receiving unit 21 which also serves as an operation unit and receives infrared driving signals from a remote controller 20 is connected to the remote controller 20 . Note that in this embodiment, the light receiving section 2l is connected to the air intake section 5.
is placed above.

On the other hand, the output interface l4 has a pump drive unit W.
Connects M, old nozzle drive device, valve drive device gate, and electric three-way valve Q.

The memory 15 also stores the bomb drive device M, the old nozzle drive device, and the
A drive sequence program for driving the valve drive device M2 and the drive section of the electric three-way valve Q is stored.

In addition, the above-mentioned bubble generating bath +iA is substantially
The structure can be substantially the same as that of the bubble generating bathtub disclosed in Japanese Patent No. 3-331772.

As described above, the present invention provides air bubbles attached to the intake air distribution pipes 5a, 5b5c that connect the air intake section 5 and the bath water forced flow path l1. Chinese festival valve Va-1. The valve drive device M2, which drives Va-2 and Va-3, is characterized by a structure in which the valve drive device M2, which drives Va-2 and Va-3, is driven by the III control signal from the control section C.

Then, by driving the valve driving device h2 with a control signal from the control unit C, the bubble amount adjusting valves Va-1,
By simply operating Va-2+Va-3 and adjusting the opening/closing amount, you can easily blow the water from the jet nozzle 2.3.4 to the bathtub body 1.
The amount of air bubbles mixed into the bath water that is ejected into the bath water can be adjusted, and the bather can use various types of blows (for example, mild blows, shiatsu blows, massage blows, etc. as described in Japanese Patent Application No. 63-331772). ) can be enjoyed.

For example, as shown in FIG. 7, there is a blow mode in which the amount of air bubbles mixed in is changed sinusoidally.

Furthermore, if it is possible to change the blow form for each jet nozzle 2, 3.4, it is possible to enjoy more diversified blow forms. In addition, the air bubble amount control valve Va
-1, Va-2, and Va-3 can be driven and controlled by the valve drive device gate 2 consisting of a stepping motor and a pole screw, and its control means, so it is necessary to control the vI1 ring bomb P. An expensive inverter can be made unnecessary, and the bubble-generating bathtub A can be manufactured at low cost.

Furthermore, it is possible to change the blow mode without performing inverter control, and the possibility of a life-threatening electric shock accident due to high frequency vibration can be reduced as much as possible.

Furthermore, since the installation space required by the large-capacity circulation pump P can be omitted, the bathroom can be designed easily.

In addition, since bath water mixed with air bubbles can be spouted from each spout nozzle 2, 3.4, any spout nozzle 2.
Even if 3.4 becomes unusable due to a malfunction or the like, you can still enjoy a bubble bath by spouting bath water mixed with bubbles from other spout nozzles and finely adjusting the amount of bubbles.

Further, FIG. 8 shows the main parts of another embodiment of the bubble generating bathtub 6 according to the present invention, and this embodiment has a bubble volume control valve Va.
-1, Va-2, Va-3, intake air distribution pipes 5a, 5
The structure is characterized by the structure attached to the parts b and 5c, and the same effects as in the above-mentioned embodiment can be obtained also by such a horizontal arrangement.

That is, the amount of air bubbles mixed into the bath water spouted from the jet nozzles 2, 3.4 into the bathtub body 1 can be adjusted.
Bathers can use various types of blowjobs (for example,
You can enjoy the mild blow, shiatsu blow, massage blow, etc. described in No. 1772.

In addition, in the present invention, the bubble III moderation valve Va-1+Va
-2+Va-3 valve drive device NM2 can be of various types in addition to a stamping motor, such as an electric motor with armature voltage control or field control, an air motor equipped with a variable speed device, a hydraulic A motor, internal combustion engine, etc. can also be used.

Additionally, if sufficient insulation measures are taken, an electric motor controlled by an inverter can be used.

[Brief Description of the Drawings] Figure 1 is a perspective view of the bubble-generating bathtub of the present invention, Figure 2 is a plan view of the same bathtub, Figure 3 is a block diagram of the piping system and control system of the bubble-generating bathtub, and Figure 4 is a block diagram of the piping system and control system of the bubble-generating bathtub. The figure is an explanatory diagram of the internal structure of the jet nozzle, Figure 5 is a partially cutaway side view of the air intake section containing the bubble volume control valve, Figure 6 is a cross-sectional front view of the same, and Figure 7 is a sine function of the bubble volume. FIG. 8 is a graph showing the blow form when changed in a curved manner, and is an explanatory diagram of another installation state of the air bubble fijl 9-section valve. In the figure, (A>: Bubble generation bathtub (D): Bath water circulation flow path (Ml): Nozzle drive device (gate 2): Valve drive device (P>: Circulation pump (Va-1) (Va-2) (Va-3): Bubble amount control valve (2) (3) (4): Spout nozzle

Claims (1)

[Claims] 1. A bath water circulation flow path consisting of a bath water suction flow path and a bath water forced flow path is interposed between the bathtub body and the circulation pump, and the bath water forced flow flow path is By connecting the air intake parts in communication, the air taken in by the air intake parts is mixed with the bath water in the bath water forced flow path, and the bath water mixed with air bubbles can be spouted into the bathtub body from multiple jet nozzles. In the bubble-generating bathtub, the bath water forced flow path is formed from a plurality of parallel branched bath water forced flow paths, and the air intake section and each bath water forced flow path are formed by a plurality of intake air distribution pipes. A bubble volume control valve is provided in each intake air distribution pipe, and the valve drive device of the bubble volume control valve is controlled by a control device to control the amount of water spouted from the jet nozzle into the bath water body. A bubble-generating bathtub that allows the amount of bubbles to be adjusted in the bathtub.