JPH02307470A - Air bubble generating bathtub - Google Patents

Abstract

PURPOSE:To enjoy a plurality of blow forms and to not interfere with bathing even when one of recirculation pumps gets out of order by arranging a plurality of recirculation pumps to a bathtub recirculation flow passages in a parallel state. CONSTITUTION:In an air bubble generating bathtub, a recirculation pump P is constituted of a plurality of parallel operable branch pumps. That is, split pumps P1, P2, P3 driven by pump driving apparatuses Ma, Mb, Mc are mounted to the respective split flow passages 10a, 10b, 10c of a bath hot water suction pipe 10. The number of operations of the split pumps P1, P2, P3 is appropriately altered by the control signal from a control apparatus C to make it possible to easily alter the jet amount and pressure of the recirculation pump P and a plurality of blow forms can be enjoyed. Since the blow forms can be altered only by turning the split pumps P1, P2, P3 ON/ OFF, the control part of the recirculation pump P can be prepared inexpensively and the air bubble generating bathtub can be also prepared inexpensively and, further, the whole constitution of the recirculation pump P is made compact to make it possible to achieve wt. reduction. for example, even when the split pump P1 of the recirculation pump P gets out of order, the other split pumps P2, P3 can be used and bathing is not interfered.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a bubble-generating bathtub that can change the blowing form, can be manufactured at low cost, and is highly safe.

(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. As a result, the air bubbles are configured to perform body massage, etc., 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 configuration, 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 poured into the bath water. By mixing air and ejecting air-mixed bath water from the spout, bubbles are generated in the bathtub and applied to the body of the bather, thereby increasing the pine surge effect.

(c) Problems to be Solved by the Invention However, the above-mentioned bubble-generating bathtub still had the following drawbacks.

That is, in the bubble generating bathtub described above, only one circulation pump used for circulating the bath water is provided in the bath water suction flow path, and therefore, if the circulation pump is a metering type pump, the amount of ejection is constant. Bath water could only be squirted into the bathtub with this pressure, resulting in a monotonous jet flow.

In particular, it was not possible to ensure sufficient ejection pressure, and the pine surge effect was insufficient.

On the other hand, in order to ensure high ejection pressure, the pump capacity must be significantly increased, making such a pump large, heavy, and expensive.

Furthermore, if the circulation pump breaks down, there is a problem in that the user cannot take a bath until the repair/replacement work is completed.

Additionally, as described in Japanese Utility Model Application No. 100035/1983, a system in which an electric motor is controlled by an inverter in order to change the amount and pressure of the hot water jetted out has also been developed.

However, such electric morphs are expensive because they require high-grade control such as inverter control, and the product cost of the bubble-generating bathtub itself is also high.Also, in terms of safety,
There were problems due to high frequency components generated during operation.

In addition, the ejection pressure was still not sufficient.

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

(d) 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, and An air intake part is connected to the hot water forced flow passage, and the air taken in by the air intake part is mixed into the bath water in the bath water forced flow passage, and air bubbles are mixed into the bathtub body from each jet nozzle. This invention relates to a bubble-generating bathtub capable of spouting bath water, characterized in that a plurality of circulation pumps are arranged in parallel in a bathtub circulation flow path.

(e) Functions and Effects In the present invention, a plurality of circulation pumps are arranged in parallel in the bathtub circulation flow path, so even if the circulation pump is a metering type pump, the number of operations of the pump can be changed as appropriate. This allows you to easily change the ejection amount and ejection pressure of the circulation pump, allowing you to enjoy multiple blow modes.

Furthermore, since a small, inexpensive pump is sufficient, the overall weight can be reduced, and the number of installed pumps can be arbitrarily determined depending on the application.

Furthermore, since the above-mentioned blow form can be changed simply by turning each circulation pump on and off, the control section of the circulation pump can be manufactured at low cost, and the bubble generating bathtub can also be manufactured at low cost.

Furthermore, since a plurality of circulation pumps are used, even if one of them breaks down, other circulation pumps can be used, so bathing will not be hindered.

(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, and the bubble-generating bath IA has a foot-side jet on the front and rear walls and left and right side walls of the bathtub body 1, which is formed into a box shape with an opening on the top. Nozzle 2. A dorsal side jet nozzle 3 and a ventral side jet nozzle 4 are provided.

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

In addition, the air intake part 5 includes an air bubble amount control valve Va and the same UR.
Bubble amount adjustment valve body drive motor M2 that drives the v-valve Va
is installed.

In addition, the bubble-generating bathtub A is provided with a pump protection case 9 on the outer periphery of the bathtub body 1, and inside the case 9 is a circulation pump P that circulates the bath water in the bathtub body 1. Filtration 8 that filters the bath water circulated by the circulation pump P! R, a pump drive device M that drives the pump P, a motor for driving the pump drive device M, a motor for driving the nozzle valve forward and backward, a motor M2 for driving the valve body for adjusting the amount of air bubbles, and an electric three-way valve Q, which will be described later. A control section C is provided to control the operation.

In addition, Ql is a t-bath bath vibe for discarding a part of the bath water during backwashing.

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

That is, the bath water circulation flow path is a bubble-generating bath ti! A bath water suction vibe (bath water suction channel) 10 for sending bath water from circulation pump P to circulation pump P, and a bath water injection pipe (bath water suction pipe) for sending bath water from circulation pump P to bathtub A. 11.

The bath water suction vibrator 10 has one end opened at the bottom of the bathtub body 1 to form a suction port 22, and the other end communicates with the water supply port of the circulation pump P to supply bath water to the circulation pump P. I try to inhale it.

On the other hand, the bath water bullet feed pipe 11 has one end connected to the circulation pump P.
The other end is connected to the spout nozzle 2°3.4 on the foot side, ventral side, and dorsal side, respectively.

Further, as shown in FIG. 3, the pump driving device M of the circulation pump P is equipped with a rotation speed detection sensor 6 that detects the rotation speed of the circulation pump P, and the detection output from the detection sensor 6 is It is sent to a control section C, which will be described later, and the rotation speed of the circulation pump P is controlled by the control section C.

Furthermore, as shown in FIG. 3, a pressure detection sensor 12 for detecting the pressure of the bath water being force-fed into the bath water vibrator 11 is attached to a midway portion of the bath water bullet-feeding vibrator 11, as shown in FIG. Then, a detection signal from the pressure detection sensor 12 is sent to a control section C, which will be described later, and the control section C controls the ejection pressure of the bath water ejected from each ejection nozzle 2, 3.4 of the pump drive device M. It is controlled by changing the rotational speed and the position of the valve body for controlling the jets ff1jl of the foot side, dorsal side, and ventral side jet nozzles 2, 3.4.

Moreover, the pressure detection sensor 12 detects whether the pressure is in the bathtub body 1 or not. aW
It can also be used as a water level sensor for detecting t.

These jet nozzles 2, 3.4 each use a jet volume automatic adjustment jet nozzle having the same structure and configured to be able to automatically change the jet volume and jet pressure of bath water.

Further, as shown in FIG. 3, an intake vibe 5a from an air intake section 5 is connected to the jet nozzles 2, 3.4.

Then, using the ejector effect by the ejector pressure generated by operating the circulation pump P, air is mixed into the bath water via the suction vibrator 5a, and the bath water mixed with air bubbles is ejected from the jet nozzles 2, 3.4. You can squirt more.

Next, the configuration of the control section C for controlling the pump drive device M and the foot, dorsal, and ventral jet nozzles 2, 3.4 will be described.

The control unit C includes a microprocessor M as shown in FIG.
PU and input/output interface 13.14 and ROM
It consists of a memory 15 consisting of a RAM, a timer 16, and a timer 16.

In the above configuration, the human interface 13
These include a rotation speed detection sensor 6 that detects the rotation speed of the V&ring pump P, a valve body reference position detection sensor 17 that detects the opening/closing amount of the valve body for controlling the amount of ejection, and a valve that detects the opening/closing amount of the bubble amount adjusting valve. A reference position detection sensor 18 , a pressure detection sensor 12 that detects the water pressure of the bath water delivery pipe 11 , a bath water temperature detection sensor T that detects the temperature of the bath water in the bathtub body 1 , and an infrared drive signal from the remote controller 20 A light-receiving unit 21 which also serves as an operation unit is connected.

Note that in this embodiment, the light receiving section 21 is connected to the air intake section 5.
is placed above.

On the other hand, the output interface 4 is connected to a pump driving device M, a motor for driving the nozzle valve body forward and backward, a motor M2 for driving the valve body for adjusting the amount of air bubbles, and an electric three-way valve Q.

The memory 15 also stores the pump drive device M, the motor gate 1 for driving the valve body for the nozzle, and the motor gate 1 for controlling the bubble wall, based on the output signals from the above-mentioned sensors and the drive signal from the remote controller 20. A drive order program for driving the valve body drive motor 12 and the drive section of the electric three-way valve Q is stored.

Note that the bubble generating bathtub A described above may have the same structure as the bubble generating bathtub described in Japanese Patent Application No. 63-331772, except for the circulation pump.

The present invention is characterized in that in the bubble generating bathtub A constructed as described above, the circulation pump P is constructed from a plurality of branch pumps that can be operated in parallel.

That is, as conceptually shown in FIG.
0 into a plurality of divided channels 10a, 10b, 10c
formed from each divided 2ii path 10a, 10b, 10
c, divided pumps P1.c are driven by pump drive devices Ma+Mb and Mc, respectively. P2. P3 is installed.

With this configuration, the control signals from the control device C control the divided pumps PI, P2 . By appropriately changing the number of operations of P3, the ejection amount and ejection pressure of the circulation pump can be easily changed. You can enjoy blowjobs, mansage blowjobs, etc.

Alternatively, simply split pumps PI, P2. Turn on P3.
Since the above-mentioned blow mode can be changed simply by turning off the blower, the control section of the circulation pump P can be manufactured at low cost, and the bubble generating bathtub A can also be manufactured at low cost.

Furthermore, the overall configuration of the circulation pump P can be made compact and lightweight.

Furthermore, the circulation pump P is divided into a plurality of divided pumps PI.

P2. P3, so even if one of them (for example, PI) fails, the other divided pumps P2. Since P3 can be used, bathing will not be hindered.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the bubble-generating bathtub of the present invention, FIG. 2 is a plan view of the same bathtub, FIG. 3 is a block diagram of the bubble-generating bathtub, and FIG.
The figure is a conceptual configuration explanatory diagram of a circulation pump. (A); Bubble generating bathtub (D): Bath water circulation flow path (P):
circulation pump

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 The air intake parts are connected in communication, and the air taken in by the air intake parts is mixed into the bath water in the bath water forced flow path, so that the bath water mixed with air bubbles can be spouted from each jet nozzle into the bathtub body. A bubble-generating bathtub characterized in that a plurality of circulation pumps are arranged in parallel in a bathtub circulation flow path.