JPS62221351A - Air bubble generating bathtub - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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 show conventional examples of bathtubs equipped with this type of bubble generation mechanism. In the bathtub shown in FIG. In addition, in the one shown in FIG.
Air 7 sent through a valve 6 provided in a return pipe 5 is drawn in and pressurized by a pump 4 to dissolve the air into hot water. The hot water with dissolved air discharged from the pump 4 is discharged into the bathtub 1 from a pressure reducing nozzle 9 via a discharge pipe 8.

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. 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 fine bubbles (bubble diameter 10 to 20 μm) in the bathtub.
By switching and discharging normal bubbles and normal bubbles (bubble diameter 1 mm or more) and changing the discharge amount, it is possible to finely adjust the sensible temperature range from the plus side to the minus side, assuming the water temperature is O. It is characterized by

Hereinafter, the present invention will be explained based on examples.

1 and 2 show an embodiment of the present invention,
In the figure, 11 is a bathtub, 12 is a decompression nozzle (described later) attached to the bathtub 11, 13 is an air suction pipe connected to the decompression nozzle 12, 14 is a discharge pipe, 15 is an accumulator, 16 is a pressure pump, and 17 is a filter. , 1B is the return pipe, 19
．． 20. 21 are first, second and third electromagnetic valves, respectively; the first electromagnetic valve 19 is for water, the second and third electromagnetic valves are
The 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 the nozzle rotating part 1 is attached to the nozzle body 12a.
2b is rotatably mounted and can be rotated from the bathtub 11 side. Further, a plurality of bubble nozzles 12c and 12d are attached to the nozzle rotating part 12b, one of which is a nozzle that discharges normal bubbles, and the other bubble nozzle L2d is a nozzle that discharges fine bubbles. be. Note that FIG. 2 shows a state in which normal bubbles are discharged, and the pressurized water W from the pressurizing pump 16 passes through the discharge pipe 14 and the flow path 12e of the decompression nozzle 12, and then flows to the normal bubble nozzle 12c.
guided by. Furthermore, the nozzle rotating part L2b is linked with the rotary switch 12f, and the rotary switch 1
Each electromagnetic valve 19, 20, 21 according to the position of 2e
Operate as follows.

The operating states of the electromagnetic valves 19, 20, and 21 when the discharge menu is set to, for example, the following five types (A to E) will be described.

A: Normal bubbles (large bubble volume) B: Normal bubbles (bubble volume ratio) C: Fine bubbles (water inflow) D = Fine bubbles (small water flow) E: Water flow only The operating status of each electromagnetic valve 19, 20, 21 is As shown in the table below.

For example, menu A is the state shown in FIG. 2, in which pressurized water W from the pressurizing pump 16 enters the normal bubble nozzle 12c via the flow path 12e. This nozzle 12c is a jet pump, which sucks in air through a third electromagnetic valve 21 and discharges it into the bathtub 11 together with pressurized water.

Menu D is a case where the fine bubble nozzle 12d is at the position of the flow path 12e, the first electromagnetic valve 19 is in a half-open state, and the circulating amount of hot water 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, the discharge pressure of the pressurizing pump 16 decreases due to the pressure loss of the first electromagnetic valve 19.
The second electromagnetic valve 2 supplies air according to the opening degree and discharge pressure of 9.
It is necessary to set it so that it can be mixed at 0.

In this way, the nozzle rotating part 12 arranged inside the bathtub 11
By operating b, the opening degree of each electromagnetic valve 19.20° 21 is adjusted via the rotary switch 12e, allowing the bather to take a bath with a sensible temperature and stimulation according to his or her 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 drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a cross-sectional view showing the essential parts of the above embodiment, and FIGS. 3 and 4 are block diagrams showing a conventional example.

Claims (1)

[Claims] (1) A bubble-generating bathtub characterized in that fine bubbles and normal bubbles are selectively discharged into the bathtub, and the discharge amount is varied.