JPH0326258A - Bubble generating bathtub which can adjust bath hot water ejecting quantity - Google Patents

Abstract

PURPOSE:To eliminate the need for a high-grade control of an inverter, etc., and also, to allow a bathing person to enjoy various blow forms in which the ejecting quantity and ejecting pressure are different by forming each ejection nozzle by an ejecting quantity variable type ejection nozzle, and controlling a nozzle driving device of said ejection nozzle by a controller. CONSTITUTION:By driving a nozzle driving device M1 by a control signal from a control part C, a valve shaft 46 and a valve body 47 formed integrally with the valve shaft 46 are moved forward and backward a communicating hole 42, and by adjusting a gap between them, ejecting pressure and the ejecting quantity of bath hot water ejected from each ejection nozzle 2, 3 and 4 can be controlled as a whole or separately. According to this constitution, a bathing person can enjoy various blow forms, and since the nozzles 2, 3 and 4 can be driven and controlled by the nozzle driving device M1 consisting of a stepping motor and a ball screw, and a control means, an expensive inverter becomes unnecessary.

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 for inexpensive blow control. (Exposure) Conventional technology Conventionally, as a type of bathtub, there is a bubble-generating bathtub that is equipped with a bubble-generating device separate from the bathtub body. 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 the bath water via a circulation pump is connected to the spout, and an ejector is installed near the spout. An air suction unit is installed that can take advantage of this effect and mix air 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, bubbles are generated in the bathtub and applied to the body of the bather, thereby increasing the massage effect. In recent years, as described in Utility Model Application No. 63-100035, the ejection force of bath water can be changed periodically by controlling an electric motor used as a pump drive device for driving a circulation pump using an inverter. There are also proposals that can do this. (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 high frequency power generated during the switching operation of the switch notching element will ensure sufficient insulation between the bathtub and the circulation pump. If not, the leakage current will flow 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 part is connected to the hot water forced flow passage, and the air taken in by the air intake part is mixed with the bath water in the bath water forced flow passage, and air bubbles are mixed into the bathtub body from multiple jet nozzles. In a bubble-generating bathtub capable of spouting hot water, each spout nozzle is formed by a variable spouting amount spouting nozzle, and the nozzle drive device of the spouting nozzle is controlled by a control device to control the flow of bath water from the spouting point and from the spouting nozzle. This invention relates to a bubble-generating bathtub in which the amount of hot water spouted can be adjusted, characterized in that the amount of hot water spouted and the spouted pressure can be finely adjusted.

(E) Function and effect ■ In the present invention, the jet nozzle is formed by a jet volume variable jet nozzle, and the nozzle driving device of the jet nozzle is controlled by a control device, so that the jet nozzle can be easily controlled. It is possible to freely and finely adjust the amount and pressure of the bath water that is ejected into the bathtub body, allowing bathers to enjoy various blow types with different amounts and pressures. ■Since the blow form can be changed for each jet nozzle, you can enjoy more diverse blow forms. ■The installation space required by a large-capacity circulation pump can be eliminated, making bathroom design easier. ■Since high-level controls such as inverters required for drive control of large-capacity circulation pumps are not required, the control device can be made inexpensive. ■Since bath water can be spouted from each spout nozzle, even if one of the spout nozzles becomes unusable due to a malfunction, the hot water can be spouted from the other spout nozzles, and the amount and amount of spout can be adjusted. You can enjoy a bubble bath by fine-tuning the pressure.

■It is possible to change the blow pattern without inverter control, and the possibility of life-threatening electric shocks caused by high-frequency waves 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 bubble generating bath+! ! This shows the overall structure of the bubble-generating bathtub A, which has a box-shaped bathtub body l with an opening on the top, and has leg-side spouting nozzles 2, dorsal-side spouting nozzles 3, A ventral jet nozzle 4 is provided.

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

In addition, the air intake part 5 includes a bubble wtAt valve Va and a bubble wtAt valve Va and the same j
I! A valve body drive motor H2 for controlling the amount of air bubbles is provided to drive the control 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 1, and inside the case 9, as shown in FIGS. A circulation pump P that circulates the bath water, a filter R that filters the bath water circulated by the circulation pump P, a pump drive device M that drives the pump P, and a nozzle that will be described later. Old drive device, valve body drive motor M2 for air bubble N adjustment
and a control section C that controls the drive of the electric three-way valve Q drive device.

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

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

That is, the bath fl) circulation flow path D is connected to a bath water suction pipe (bath water suction flow path NO) for sending bath water from the bubble generating bathtub A to the circulation pump P, and a bath water suction pipe (Bath water suction flow path NO) for sending bath water from the bubble generating bathtub A to the circulation pump P. The bathtub suction vibrator 10 has one end opened at the bottom of the bathtub body 1 and has a suction port. 22, and communicates the other end with the water supply port of the circulation pump P to draw bath water into the circulation pump P. On the other hand, the forced bath water pipe 11 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 2.3 and 4, respectively.

The present invention is characterized in that, in the construction of the bubble-generating bathtub A described above, the ejection nozzles 2, 3.4 are formed by variable ejection amount type ejection nozzles. That is, as shown in FIG. 4, a nozzle casing 40 with a nozzle throat 39 attached to the front part in a variable direction forms an air entrainment chamber 41 behind it, and behind the entrainment chamber 41, A flow rate adjustment chamber 44 is formed through a partition wall 43 provided with a communication hole 42. A communication hole 42 is provided in the rear wall 45 of the flow rate adjustment chamber 44.
A nozzle driving device is installed to finely adjust the amount and pressure of bath water spouted from the nozzle throat 39 by adjusting the opening amount of the nozzle throat 39.

In this embodiment, the nozzle driving device includes a stenobing motor, a pole screw (not shown) that converts the rotational movement of the motor into forward and backward movement of the valve shaft 46, and a pole screw (not shown) attached to the tip of the valve shaft 46. Opening and closing the communication hole 42 described above,
It consists of a valve body 47 that adjusts the amount and jet pressure of the bath liquid H from the nozzle throat 39.

With this structure, If from the control unit C described later:
The Bl signal drives the nozzle drive device to move the valve shaft 4.
6 and the valve body 47, which is integral with the valve shaft 46, are moved forward and backward toward the communication hole 42, and by adjusting the gap therebetween, that is, the opening amount, the amount of bath water spouted into the bathtub body 1 can be adjusted. Ejection pressure can be easily adjusted.

Also, to explain the configuration of the bubble generating bathtub A in FIG. 3, in the middle of the bath water forced-feeding pipe l1, as shown in FIG. A pressure detection sensor l2 is installed.

Then, a detection signal from the pressure detection sensor l2 is sent to a control unit C, which will be described later, and the control unit C controls the drive of the nozzle drive device ill to adjust the opening amount of the valve body 48.
The ejection pressure and ejection amount of bath water ejected from each ejection nozzle 2, 3.4 can be controlled collectively or separately.

Moreover, the pressure detection sensor 12 can also be used as a water level sensor for detecting the amount of bath water in the bathtub body 1. Further, as shown in FIG. 3, an intake pipe 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 through the suction pipe 5a, and air bubbles (brittle bath water) are sent to the ejector nozzles 2, 3. It can be ejected from .4.

Next, the structure of the control section C for controlling the pump drive device M and the nozzle drive device Ml will be explained.

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 input interface 13
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 opening/closing amount of the valve body 48 driven by the nozzle drive device M1, and a valve reference position detection sensor 17 for detecting the opening/closing amount of the bubble volume control valve Va. Valve reference position detection sensor l8
, a pressure detection sensor 12 that detects the water pressure of the bath water forced pipe 11, a bath water temperature detection sensor T that detects the temperature of the bath water in the bathtub body l, and an operation unit that receives an infrared drive signal from the remote controller 20. A dual-purpose light receiving section 21 is connected. Note that in this embodiment, the light receiving section 21 is provided on the air intake section 5. On the other hand, the output interface 14 includes a pump drive device M, a nozzle drive device i! fM1, bubbles! A motor M2 for driving the regulating valve body and an electric three-way valve Q are connected. The memory 15 also stores the pump drive device M, the old nozzle drive device, and the motor gate for driving the valve body for controlling the amount of air bubbles based on the output signals from the above-mentioned sensors and the drive signal from the remote controller 20. A drive sequence program for driving the drive units of the electric three-way valve Q and the electric three-way valve Q is stored.

Note that the above-mentioned bubble generating bathtub A is substantially based on the patent application filed in 1983.
The structure can be substantially similar to the structure of the bubble generating bathtub disclosed in Japanese Patent No. 331,772. As described above, the present invention provides a jet nozzle 2 driven by a nozzle drive device connected to a forced bath water pipe 11.
, 3.4 is characterized by a structure in which the jet nozzle is formed from a variable jet nozzle.

Then, by simply operating the variable spout amount type spout nozzle and adjusting the opening/closing amount of each spout nozzle 2.3.4, the spout can be easily sprayed from the spout nozzle 2.3.4 into the bathtub body 1. The amount and pressure of the bath water can be changed arbitrarily, and bathers can use various types of blowing (for example, Japanese Patent Application No. 63-3317
You can enjoy the mild blow, shiatsu blow, massage blow, etc. described in No. 72.

For example, as shown in FIG. 5, it is possible to easily obtain a blow pattern in which the amount of ejection varies in a sinusoidal manner. 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, since the drive and control of each jet nozzle 2.3.4 consisting of a variable-volume jet nozzle can be performed by a nozzle drive device and control means consisting of a stem blowing motor and a pole scree, the circulation pump P can be controlled. This eliminates the need for an expensive inverter that would otherwise be required, and the bubble-generating bathtub A can be manufactured at low cost.

Furthermore, the blow pattern can be changed without inverter control, and the possibility of life-threatening electric shocks caused by high-frequency power 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 hot water can be spouted from each spout nozzle 2.3.4, even if either spout nozzle 2, 3.4 becomes unusable due to a malfunction, etc. You can enjoy a bubble bath by spouting hot water and finely adjusting the amount and pressure of the water. In addition, in the present invention, as the nozzle driving device n1 of the variable jetting amount jet nozzle, various types of devices can be used in addition to a stamping motor, such as an electric motor with armature voltage control or field control. An air motor, hydraulic motor, internal combustion engine, etc. equipped with a transmission can also be used. Furthermore, when using an electric motor, inverter control can be adopted by taking sufficient insulation measures.

[Brief explanation of drawings]

Fig. F 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 piping system and control system of the bubble generating bathtub, and Fig. 4 is a configuration of the jet nozzle. It is an explanatory diagram and a graph showing . (A): Bubble generation bathtub CD): Bath water circulation flow path (?l1): Nozzle drive device (P): Circulation pump (2) (3) (4): Spout nozzle Figure 5 is an example of the blow type

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, each jet nozzle is formed by a variable jet amount jet nozzle,
A bubble capable of adjusting the amount of bath water spouted, characterized in that the nozzle drive device of the spout nozzle is controlled by a control device, and the spouting location and the amount and jetting pressure of bath water from the spouting nozzle can be finely adjusted. Occurrence bathtub.