JPH0444550B2 - - Google Patents

Description

[Detailed description of the invention]

(Technical Field) The present invention relates to a bubble-generating bathtub in which bubbles can be mixed. (Background Art) It is known that mixing air bubbles into a bathtub has the effect of cleaning the body surface and promoting blood circulation compared to normal bathing. 3 and 4 are conventional examples of bathtubs equipped with this type of bubble generation mechanism, and the one shown in FIG.
Air from an air pump 3 is vented to a porous plate 2 provided at the bottom of the bathtub 1 to generate bubbles. and the bathtub 1 via the return pipe 5.
The air 7 sent through the valve 6 provided in the return pipe 5 is drawn in and pressurized by the pump 4 to dissolve the air in the hot water. The hot water containing dissolved air discharged from the pump 4 flows through the discharge pipe 8.
The water is discharged into the bathtub 1 from the decompression nozzle 9.
The discharged hot water becomes hot water containing fine bubbles due to the reduced pressure. However, in bathtubs equipped with such conventional bubble generation mechanisms, the diameter of the bubbles generated cannot be changed according to the bather's preference, such as the former producing only normal bubbles and the latter producing only fine bubbles. Furthermore, it was not possible to increase or decrease the amount of bubbles discharged. (Objective of the Invention) The present invention was made in view of the above-mentioned drawbacks, and its purpose is to finely adjust the perceived temperature up and down around the bath water temperature according to the bather's preference without changing the bath temperature. It is on offer to provide an adjustable bathtub. (Disclosure of the Invention) The present invention provides that microbubbles (bubble diameter 10 to 20μ) are created in the bathtub.
By switching and discharging normal bubbles (bubble diameter 1 mm or more) and changing the discharge amount, the range of sensible temperature adjustment can be finely adjusted to the plus side and minus side with the water temperature at 0. It is characterized by what it did. The present invention will be explained below based on examples. 1 and 2 show an embodiment of the present invention, in which 11 is a bathtub, 12 is a vacuum nozzle (described later) attached to the bathtub 11, and 13 is an air suction pipe connected to the vacuum nozzle 12. , 14 is a discharge pipe, 1
5 is an accumulator, 16 is a pressure pump, 17 is a filter, 18 is a return pipe, 19, 20, 21
are first, second, and third electromagnetic valves, respectively; the first electromagnetic valve 19 is for water, and the second and third electromagnetic valves 20 and 21 are for air, respectively. The decompression nozzle 12 is fixed to the bathtub 11 via a nozzle body 12a, and a nozzle rotating part 12b is rotatably attached to the nozzle body 12a, so that it can be rotated from the bathtub 11 side. Also,
A plurality of bubble nozzles 12 are provided in the nozzle rotating section 12b.
One of the bubble nozzles 12c is a nozzle that discharges normal bubbles, and the other bubble nozzle 12d is a nozzle that discharges fine bubbles. Note that FIG. 2 shows a state in which normal bubbles are discharged, and the pressurized water W from the pressurizing pump 16 is guided to the normal bubble nozzle 12c via the discharge pipe 14 and the flow path 12e of the pressure reducing nozzle 12. Further, the nozzle rotating portion 12b is linked to a rotary switch 12f, and the electromagnetic valves 19, 20, 21 are operated as described below depending on the position of the rotary switch 12f. For example, the following five types of discharge menu (A to
Each electromagnetic valve 19, 2 in the case of E)
The operating states of 0 and 21 will be explained. A: Normal bubbles (large amount of bubbles) B: Normal bubbles (small amount of bubbles) C: Fine bubbles (large water flow) D: Fine bubbles (small water flow) E: Only water flow The operating status of each electromagnetic valve 19, 20, 21 is As shown in the table below.

[Table] For example, menu A is in the state shown in FIG.
It enters the normal bubble nozzle 12c via e. This nozzle 12c is a jet pump, which sucks air through the third electromagnetic valve 21 and discharges it into the bathtub 11 together with pressurized water. Menu D shows that the fine bubble knob 12d is the channel 1.
2e, the first electromagnetic valve 19 is in a half-open state, and the amount of hot water circulated is reduced. Further, the second electromagnetic valve 20 is also slightly closed so that the air amount reaches the setting in menu D. At this time, the third electromagnetic valve 21 is closed. In this case, since the discharge pressure of the pressurizing pump 16 decreases due to the pressure loss of the first solenoid valve 19, the second solenoid valve 20 mixes air according to the opening degree and discharge pressure of the first solenoid valve 19. You need to set it up so that it can be done. In this way, by operating the nozzle rotating part 12b arranged in the bathtub 11, each electromagnetic valve 19, 20,
21 opening degree is adjusted, allowing the bather to take a bath with the temperature and stimulation that suits their preference. (Effects of the Invention) As described above, the present invention is capable of discharging fine bubbles and normal bubbles into the bathtub by switching between them, and by changing the discharge amount, the perceived temperature can be adjusted according to the bather's preference. , we were able to provide a bubble-generating bathtub that allows bathing with stimulation.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
The figure is a sectional view showing the main part of the above-mentioned embodiment, and FIGS. 3 and 4 are configuration diagrams showing the conventional example, respectively.

Claims (1)

[Claims] 1. A bubble generating bathtub equipped with a vacuum nozzle that can selectively supply at least fine bubbles with a bubble diameter of 10 to 20 μm and normal bubbles with a bubble diameter of 1 mm or more into the bathtub, the vacuum nozzle being a nozzle that normally discharges bubbles. and a nozzle that discharges fine bubbles, and each nozzle is configured to be selectively connected to a circulating water flow path that circulates between the bathtub and the decompression nozzle, and is linked to the selection of the supplied bubbles. The suction air amount adjustment valve connected to the bubble nozzle, the suction air amount adjustment valve and the circulating water flow rate adjustment valve connected to the circulating water flow path are each adjusted to a preset opening degree. A bubble-generating bathtub characterized by: