JPH0524336Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a bubble generator for a bathtub, and more particularly to a technique for simplifying the pipe configuration while switching between fine bubbles and normal bubbles.

[Background Art] Conventionally, as shown in FIG. 3, a bubble generator for a bathtub includes a fine bubble injection nozzle 2 that sprays fine bubbles into a bathtub 1 and a suction section 3 that sucks hot water in the bathtub 1. The fine bubble injection nozzle 2 and the suction part 3 are connected to each other by a circulation pipe 4 outside the bathtub, and the circulation pipe 4 is pressurized with a pressurizing pump 8 and an intake part 5 that takes outside air into the hot water in the pipe. It was constructed by providing a pressurized bubble remover 6 that promotes the dissolution of outside air into the hot water and removes air bubbles that are not dissolved in the hot water.

When the pressurizing pump 8 is driven, the hot water in the bathtub 1 is sucked in from the suction part 3, the outside air is sucked in from the suction part 5, air is drawn into the hot water sucked in from the suction part 3, and the pressure is increased like an accumulator. Undissolved coarse bubbles are removed by the bubble remover 6, and fine bubbles are ejected from the fine bubble injection nozzle 2. In such conventional examples, fine air bubbles can be ejected, but jet water containing normal air bubbles cannot be ejected. Therefore, it is conceivable to equip the bathtub 1 with a fine bubble injection nozzle that injects fine bubbles and a normal bubble injection nozzle that injects normal bubbles, so that fine bubbles and normal bubbles can be injected. The problem is that it requires a lot of time and is complicated. In addition, when a pressurized bubble remover 6 such as an accumulator removes coarse air bubbles, not only air but also water is removed, so it is necessary to install a drainage pipe for the removed water. However, there is a problem that the pipeline becomes complicated.

[Purpose of the invention] The present invention was created in view of these problems, and its purpose is to simplify the pipe configuration while being able to selectively inject fine bubbles and normal bubbles. The purpose of the present invention is to provide a bubble generating device for bathtubs.

[Disclosure of the invention] The bubble generation device for a bathtub according to the present invention includes a fine bubble injection nozzle 2 that sprays fine bubbles into a bathtub 1 and a bathtub 1.
The fine bubble injection nozzle 2 and the suction part 3 are connected through a circulation pipe 4 outside the bathtub, and the circulation pipe 4 is connected to a pressure pump 8 in the pipe. The pressurized bubble remover 6 is provided with an intake part 5 that takes in outside air into the hot water, and a pressurized bubble remover 6 that pressurizes to promote the dissolution of the outside air into the hot water and removes air bubbles that are not dissolved in the hot water. A branch passage 10 is provided between the micro bubble injection nozzle 2 and the switching valve 9.
This branch passage 10 is connected to a normal bubble injection nozzle 11 provided in the bathtub 1, and the branch passage 10 is
This is characterized in that the air pocket 7 of the pressurized bubble remover 6 is communicated with the air pocket 7 of the pressurized bubble remover 6, and by configuring it in this manner, the above object is achieved. In other words, by providing a bathtub 1 with a fine bubble injection nozzle 2 that injects fine bubbles and a normal bubble injection nozzle 11 that injects normal bubbles, it is possible to switch between the injection of fine bubbles and the injection of injection bubbles. However, a branch path 10 is provided between the pressurized bubble remover 6 and the fine bubble injection nozzle 2 via a switching valve 9, and this branch path 10 is connected to a normal bubble injection nozzle 11 provided in the bathtub 1. At the same time, by communicating the air pocket 7 of the pressurized bubble remover 6 with the branch path 10, the pressurized bubble remover 6 for generating fine bubbles is utilized, and the air of the pressurized bubble remover 6 is By connecting the reservoir section 7 to the branch line 10, an air supply section for injecting normal bubbles can be obtained, thereby simplifying the pipe configuration.

Embodiments of the present invention will be described in detail below based on the drawings.

A normal bubble injection nozzle 11 that injects normal bubbles (bubbles with a diameter of about 1 mm or more) onto the inner wall of the bathtub 1 from the top, and a fine bubble injection nozzle that injects fine bubbles (bubbles with a diameter of about 10 to 20 μm). 2, and a suction part 3 for sucking hot water in the bathtub 1. And fine bubble injection nozzle 2 and suction part 3
These are connected to each other by a circulation pipe 4 outside the bathtub. This circulation pipe 4 is pressurized by a pressurizing pump 8 and an intake part 5 that takes outside air into the hot water in the pipe to promote dissolution of the outside air into the hot water and pressurize to remove air bubbles that are not dissolved in the hot water. A bubble remover 6 is provided.

FIG. 4 shows a pressurized bubble remover 6, which is shaped like a container, and pressurized water from a pressure pump 8 flows in from the bottom of the pressurized bubble remover 6, is stored, and is pumped into hot water. The dissolution of the excess air that has not been completely dissolved is promoted, and the bubbles that have not yet been dissolved float to the surface due to buoyancy and accumulate as a surplus air layer in the air pocket 7 at the top of the pressurized bubble remover 6. separated. The hot water from which excess air has been separated is sent from the bottom of the pressurized bubble remover 6 to the fine bubble injection nozzle 2 through the pipe 12. in this way,
In addition to the function of absorbing general pulsation and shock pressure like an accumulator, the pressurized bubble remover 6 also has the functions of promoting the dissolution of excess bubbles that have not been completely dissolved in the pressure pump 8, and removing excess bubbles that are still undissolved. It has the function of separating air from hot water and discharging it to the outside.

A branch path 10 is provided between the pressurized bubble remover 6 and the fine bubble injection nozzle 2 via a switching valve 9.
This branch passage 10 is connected to a normal bubble injection nozzle 11 provided in the bathtub 1, and the branch passage 10 is communicated with an air pocket 7 of a pressurized bubble remover 6 via a throttle valve 14.

According to such a configuration, when fine bubbles are injected into the bathtub 1, the pressure pump 8 is driven and the switching valve 9 is switched, and the air and hot water sucked from the suction part 3 are pressurized. It is pressurized to about 5 kg/cm ² or more in the pump 8, and air is sufficiently dissolved in the pressurized bubble remover 6, and the air is sent to the fine bubble injection nozzle 2 while being pressurized. The fine bubble injection nozzle 2 has multiple nozzles with an inner diameter of about 1 mm, and the hot water containing the pressurized air is released by releasing the pressure at once at these nozzles, so the dissolved air becomes fine bubbles. It gushes into the bathtub 1. Micro bubbles have a very small bubble diameter of around 10 μm, so their floating speed is slow and they do not rise to the surface of the water all at once like normal bubbles, but remain in the water for about 2 minutes, turning colorless and transparent water into white. dye.
If the operation of the pressure pump 8 is stopped and the water is left to stand for several minutes, the fine bubbles will disappear and the water in the bathtub 1 will return to its colorless and transparent state. The effect of microbubbles is that the microbubbles envelop the surface of the bather's body, making the perceived sensitivity 1 to 3 lower than the actual level.
℃ decrease, this does not cause a sudden rise in blood pressure when taking a bath, the body temperature decreases little after bathing, so it is difficult to wake up, and the hot water in the bathtub 1 becomes white and does not cause a hot spring. Examples include feeling as if you are taking a bath.

Next, when injecting normal air bubbles into the bathtub 1, the switching valve 9 is switched, and the hot water sucked from inside the bathtub 1 through the suction part 3 by the pressurizing pump 8 passes through the pressurized air bubble remover 6. In this case, excess air is sucked in from the connecting pipe 13 that connects the air pocket 7 of the pressurized bubble remover 6 and the branch pipe 9, and is normally sucked in from the bubble injection nozzle 11. Normal air bubbles are mixed with air and injected into the bathtub 1. The diameter of the bubbles at this time usually varies depending on the shape of the bubble injection nozzle 11 and the performance of the pressure pump 8, but the bubbles float to the surface of the hot water at about 1 to 30 mm. The effect of such injection of ordinary bubbles is
Due to the pine surge effect on the human body caused by the spray and the flow of hot water in the bathtub 1, the perceived temperature is about 1 to 3 degrees Celsius higher than the actual temperature, and it is difficult to wake up from the bath because the body temperature does not drop much after bathing. Nato can be given.

[Effect of the invention] In short, the present invention is equipped with a fine bubble injection nozzle that injects fine bubbles into a bathtub and a normal bubble injection nozzle that injects normal bubbles. Although it can be switched, a branch path is provided between the pressurized bubble remover and the fine bubble injection nozzle via a switching valve, and this branch path is connected to the normal bubble injection nozzle installed in the bathtub, and Since the air pocket of the pressurized bubble remover is communicated with the channel, a pressurized bubble remover is used to generate fine bubbles, and the air pocket of the pressurized bubble remover is connected to the branch channel. , it is possible to obtain an air supply section when normally injecting bubbles, which simplifies the piping configuration.Moreover, since a branch line is connected to the air pocket of the pressurized bubble remover, pressurized bubble remover is possible. There is no need to install a separate drain pipe to the container, and there is also an advantage in that the pipe line can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a circuit explanatory diagram of one embodiment of the present invention;
The figure is a cross-sectional view of the same pressurized bubble remover as above, and Figure 3 is a circuit explanatory diagram of a conventional example, where 1 is a bathtub, 2 is a fine bubble injection nozzle, 3 is a suction part, 4 is a circulation pipe, and 5 is a circuit diagram of a conventional example. In the intake section, 6 is a pressurized bubble remover, 7 is an air reservoir, 8 is a pressurizing pump, 9 is a switching valve, 10 is a branch passage, and 11 is a normal bubble injection nozzle.

Claims (1)

[Scope of utility model registration request] A fine bubble injection nozzle that injects fine bubbles into the bathtub and a suction section that sucks hot water in the bathtub are provided, and the fine bubble injection nozzle and the suction section are connected to each other outside the bathtub through a circulation pipe. The system is equipped with a pressure pump, an intake section that takes outside air into the hot water in the pipe, and a pressurized air bubble remover that applies pressure to promote the dissolution of outside air into the hot water and removes air bubbles that are not dissolved in the hot water. A branch path is provided between the pressurized bubble remover and the fine bubble injection nozzle via a switching valve, and this branch path is connected to the normal bubble injection nozzle provided in the bathtub, and the air pocket of the pressurized bubble remover is connected to the branch path. A bubble generator for a bathtub, which is made up of two parts that communicate with each other.