JPH06105Y2 - Bubble bath equipment - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a bubble bath, and in particular, the jet output of the bubble jet can be switched between strong and weak depending on the size of a bather's body with an inexpensive and simple structure. Regarding the bubble bath that was made possible.

(Prior Art) Generally, the momentum of a bubble jet in a bubble bath is determined by the discharge force of a circulation pump. Conventionally, since this circulation pump is simply controlled to be turned on and off, the force of the bubble jet is constant.

(Problems to be solved by the invention) Therefore, it has been found that when a child who is light in weight and has a small body takes a bath, his / her feet may be taken by the water flow formed in the bathtub by the bubble jet.

The present invention has been made in consideration of the above circumstances,
It is an object of the present invention to provide a bubble bath in which the ejection force of a bubble jet can be switched between strong and weak depending on the body size of a bather.

(Means for Solving the Problem) In order to achieve the above object, the present invention is premised on a bubble bath provided with a water level detecting means for detecting the water level of a bathtub, and achieves the above object. Therefore, the following measures are taken.

That is, the amount of rise in water level due to bathing is detected by the water level detection means, and when the amount of rise is above a certain amount, the discharge force of the circulation pump is strengthened, and when the amount of rise in water level due to bathing is less than a certain amount, the circulation pump A control means for weakening the ejection force of is provided.

(Operation) In the above configuration, when a person enters the bathtub, the water surface of the bathtub rises. The amount of rise in water level differs between adults and children, and in the case of adults, the amount of rise in water level exceeds a certain amount. The control means determines whether or not the amount of increase in the water level is equal to or greater than a certain amount, and when the amount is equal to or greater than the certain amount, the discharge pressure of the circulation pump is increased, and when it is less than that, the discharge pressure of the circulation pump is decreased. In addition, the circulation pump is controlled by, for example, phase control.

(Example) Hereinafter, the present invention will be specifically described with reference to the drawings. FIG. 1 is a piping diagram of a bubble bath according to an embodiment of the present invention.
In the figure, 1 is an inlet channel, 2 is a water meter, 3 is an inlet temperature sensor, 4 is a hot water supply heat exchanger, 5 is a hot water outlet temperature sensor, and 6 is a flow control valve, which constitutes a water heater. 7 is a bath drop circuit branched from the water heater, 8 is a drop valve, 9 is a drop water meter, 10 is a vacuum breaker, 11 ...
Reference numeral 12 is a check valve, which is connected to the circulation circuit 13.
14 is a bath heat exchanger, 15 is a circulation pump, and a circulation circuit 13
It is located in, and it is possible to reheat the bath water. Reference numeral 16 is a pressure sensor as a water level detecting means, which is provided in the circulation circuit 13. Reference numeral 17 is a bubble mixer, 18 is a jet nozzle, 20 is an air introduction pipe, 21 is an air valve, 22 is a bathtub, 2
Reference numeral 3 is a control circuit, 24 is a device, and 25 and 26 are three-way valves.

In the above configuration, a fixed drop is performed when the water level in the bathtub 22 is set, and the control circuit 23 obtains the bathtub cross-sectional area S = Q / H from the water level H at that time. Thereafter, when a person enters the bathtub 22, the pressure sensor 16 causes the rising water level Δ
H is detected, the volume ΔV of the human body is calculated from the cross-sectional area of the bathtub 22, and when this volume ΔV is, for example, 39 or more, it is determined that the bathing is for an adult, and the circulation pump 15 is strongly operated,
When the value is 0, weak driving is performed. When it is less than 5, it is judged that the water level has not risen due to bathing and the circulation pump 1
The operation of 5 is stopped. In the above embodiment, the volume of the bather is calculated to make the circulation pump 15 stronger or weaker, but the strength of the circulation pump 15 may be controlled only by the amount of increase in the water level.

In this way, when a small child takes a bath, the force of the bubble jet is weakened, so that the child can be prevented from being pushed by the water current and slipping his legs, and when the adult takes a bath, the force of the bubble jet is strongly increased. You can take a comfortable bath.

As the water level detecting means, for example, Japanese Patent Laid-Open No. 61-975
It may be that disclosed in Japanese Patent Publication No. 86. However,
Since this human body detecting device in the bathtub detects a change in the water level by using an optical interrupter array, its structure is complicated and expensive.

If the water level detecting means for detecting the water level change is composed of a single pressure sensor as in this embodiment, the structure is inexpensive and simple.

(Effects of the Invention) As described above, according to the present invention, the amount of rise of the water level is detected by the water level detecting means for the size of the body of the bather, and when the amount of rise is small, the force of the bubble jet is weakened and the bathtub It is possible to prevent the danger of a dwarf being caught by the momentum of the water flow generated inside, and to strengthen the momentum of the bubble jet when the amount of ascent is large so that an adult can take a comfortable bath.

[Brief description of drawings]

 FIG. 1 is an overall circuit diagram of an embodiment of the present invention. 13 ... Circulation circuit 15 ... Circulation pump 16 ... Pressure sensor 17 ... Bubble mixer 22 ... Bathtub 23 ... Control circuit

Claims (1)

[Scope of utility model registration request] 1. A circulation circuit for circulating hot water in a bathtub is provided with a circulation pump capable of controlling the discharge pressure and water level detection means for detecting the water level in the bathtub, and an air bubbler is provided in the discharge portion to the bathtub. In a bubble bath, the water level rise due to bathing is detected by the water level detection means, and when the rise is above a certain level, the discharge force of the circulation pump is strengthened, and when the water level rise due to the bath is below a certain level, circulation is performed. A bubble bath device comprising control means for weakening the discharge force of a pump.