JPH01230358A - Device for jet stream bath - Google Patents

Abstract

PURPOSE:To allow blood in capillary vessels to flow smoothly, and thereby make feeling after bath fresh by letting the discharge side line of a pump be communicated with a high pressure blow-out valve with a two-way valve actuated, and thereby providing not only an air feed valve feeding air into the suction side line of the pump with a valve opened by the pressure within a line but also a gas-liquid mixer which mixes air finely so as to feed it to a high pressure blow-out valve. CONSTITUTION:When the discharge side line 6 of a pump 3 is communicated with a low pressure jet stream nozzle side with a two-way valve 7 actuated, jet foam stream can be jetted into a bath tub 1 by the discharging force of the pump 3 without increasing the internal pressure of the discharge side line 6. When the discharge side line 6 is communicated with a high pressure blow-out valve side with the two-way valve 7 switched-over, the pressure in the discharge side line 6 of the pump 3 is increased by the valve pressure of the high pressure blow-out valve. And when the pressure in the line becomes equal to or more than the valve pressure by both a high pressure blow-out valve 9 and the spring of an air feed valve 11, both of the air feed valve 11 and of the high pressure blow-out valve 9 are opened so as to let air be introduced into the suction side line 4 of the pump 3 for letting the air be soluble in warm water by high pressure so that the air furthermore passes through a gas-liquid mixer 24 so as to be blown off as white foam from the nozzle 27 of the high pressure blow-out valve 9.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a jet bath device for circulating hot water in a bathtub, mixing air into the circulating hot water, and ejecting the hot water together with air bubbles into the bathtub.

(Prior Art) Various types of so-called jet bath devices are already known that circulate hot water in a bathtub and spray the reintroduced hot water into the bathtub as a jet stream or a bubbly stream. For example, an injection device having a hot water inlet and an air/hot water inlet that pressurizes hot water sucked out from inside the bathtub by a pump and supplies it into the bathtub is installed on the side wall of the bathtub, and the injection device is connected to the air/hot water inlet of the injection device. A jet device is constructed by connecting the upstream end of the air/hot water inhaler to the hot water supply pipe and the air supply pipe via a switching valve, and operates the circulation pump to supply hot water in the bathtub to the hot water circulation pipe. The system takes in hot water, forcibly circulates it, and uses pump pressure to forcefully send hot water to a jet device to discharge it as a bubble jet or a vortex jet. (Refer to Japanese Unexamined Patent Publication No. 59-67955.) (Problems to be Solved by the Invention) However, in the conventional jet bath apparatus, the amount of air mixed in when forming a bubble jet cannot be adjusted by controlling the flow rate regulating valve or by controlling the air intake port. This is done by adjusting the opening degree of the pump, so the adjustment operation itself is not very difficult, but the pump pressure,
That is, the amount of air taken in cannot be controlled in relation to the discharge pressure of hot water by the pump, and the amount of air taken in must be adjusted each time depending on the strength of the discharge jet. Furthermore, since the conventional bubble jet simply injects air into the discharged jet, the dissolution rate of oxygen in the discharged hot water is low, and the activating effect on the user's skin is poor.

In the present invention, air is automatically mixed in as the pressure in the discharge side pipe line of the pump increases, and the amount of air mixed in is determined depending on the magnitude of the pressure. Furthermore, the dissolution rate of oxygen in hot water is improved and exceeded. A device for mixing fine air bubbles is installed on the pump unit side, and the bathtub unit side is provided with a jet bath device that is simple in construction and easy to handle.

(Means for Solving the Problems) The jet bath device according to the present invention includes a pump unit equipped with a pump for circulating hot water in the bathtub, and a suction pipe for the hot water in the bathtub connected to a suction side pipe line of the pump. An in-bath unit equipped with a low-pressure jet nozzle and a high-pressure blow-off valve branched and connected to the outlet and the discharge side pipe of the pump via a two-way valve, wherein the pump unit includes an in-tub unit that includes an in-tub unit equipped with a high-pressure blow-out valve. When the discharge side pipe of the pump is communicated with the high pressure blow-off valve and the internal pressure of the discharge side pipe of the pump rises, the valve is opened by the pipe internal pressure to supply air to the suction side pipe of the pump. The air-liquid mixer is provided with an inlet valve and a gas-liquid mixer that finely mixes the air mixed in by the operation of the air inlet valve and sends the mixed air to a high-pressure outlet valve.

The air supply valve in the pump unit is provided between a branch line communicating with the discharge side line of the pump and the suction side line of the pump, and the flow line of the two-way valve is connected to the high pressure blow-off valve. When the pipe line pressure on the discharge side of the pump increases due to the flow path resistance 1 of the high pressure blow-off valve, when the pressure inside the pipe reaches a predetermined pressure, the valve stem is pushed and moved by the internal pressure of the pipe. Air is drawn into the suction side pipe line of the pump from the air intake port.

The gas-liquid mixer is equipped with spiral flow paths that alternate in opposite directions, and changes the flow direction of hot water several times from the inlet side to the outlet side to remove air mixed in by the operation of the air intake valve. It has a function of mixing and discharging fine particles.

(Function) When the pump is operated with the two-way valve of the bathtub unit facing the low-pressure jet nozzle side, the hot water in the bathtub flows through the inlet of the water inlet attached to the bathtub unit and passes through the filter and back check. It is introduced into the suction line through the valve, passes through the pump, is sent to the discharge side line leading to the low-pressure jet nozzle, and is sent under pressure to the low-pressure jet nozzle through the two-way valve, and air is mixed in when it is ejected into the bathtub. The foam is then ejected into the bathtub as a jet of foam. Next, when the flow path of the two-way valve is switched to the high-pressure blow-out valve side, the water pressure in the discharge-side pipe of the pump increases due to the flow path resistance of the high-pressure blow-off valve, and the pressure becomes higher than the discharge pressure to the low-pressure jet nozzle. When the discharge pressure increases by about 9/d from 2 to 8, the discharge pressure acts on the air supply valve through the branch pipe line, pushes the valve stem, opens the valve, and introduces air into the suction side pipe line of the pump. The hot water mixed with air as it passes through the pump is finely mixed with air in a gas-liquid mixer installed in the discharge side pipe leading to the high-pressure blow-off valve, and then sent to the bathtub via the high-pressure blow-off valve. The inside of the bathtub can be filled with extremely fine white bubbles.

(Example) Below, drawings showing examples of the present invention will be explained.
The jet bath device according to the present invention, as outlined in FIGS. 1 to 8, includes a pump unit A including a pump 8 for circulating hot water 2 in a bathtub 1; A low-pressure jet nozzle 8 and a high-pressure blow-off valve 9 are branched and connected to an inlet 5 of hot water in the bathtub 2 connected to the suction side pipe line 4 of the pump 8 and a two-way valve 7 to the discharge side pipe line 6 of the pump 8.
It consists of a bathtub unit) B.

Inside the pump unit A, there is an air supply valve 11 between a branch line 10 communicating with the discharge side line 6 of the pump 3 and the suction side line 4 of the pump 3, and an air supply valve 11 between the branch line 10 communicating with the discharge side line 6 of the pump 3, and the discharge side line 6 of the pump 8. A gas-liquid mixer 24 is provided. The air supply valve 11
As shown in FIG. 4, the suction side pipe line 4 of the pump 8
A suction section 18 is provided with a rapidly reducing flow path 12 which is linearly connected to the main body and whose cross section is reduced by extending it in the middle, and a conical valve at the end which is operated by the water pressure of the branch pipe 10.] 4
a spring 16 that presses the valve stem 15 toward the valve opening side with a predetermined elasticity, a space 17 formed on the narrow diameter side of the conical valve 14, and a connection between the space 17 and the suction section 1.
It consists of an air passage 18 that connects the rapid reduction channel 12 of B, and an air intake valve section 21 that has an air intake hole 20 that is equipped with a filter 19. When the pressure rises above the elasticity of the spring 16, the pressure acts on the valve stem 15 through the branch pipe 10, the valve stem 15 is pushed against the elasticity of the spring 16, and the conical valve 14 is opened. The air suction hole 20 and the space 17 are communicated with each other, and a suction action is applied to the air passage 18 by the negative pressure action of the high-speed fluid on the rapidly decreasing flow path 12 of the suction part 18, and this suction action causes the air suction hole 20 to be closed to the space. Air is sucked in in the direction of the arrow through the air passage 17 through the air passage 17, and the air is mixed into the hot water flowing through the rapid contraction flow passage 12.

The gas-liquid mixer 24 alternately has spiral channels 22.2 in opposite directions.
8, the flow direction of the hot water into which air is fed by the air inlet valve 11 is reversed several times from the inlet side to the outlet side, and the spiral rotation direction is reversed several times so that the hot water is heated. It has the function of finely mixing the air mixed in. As a means for guiding the hot water discharged from the discharge side pipe line 6 of the pump 8 to the high-pressure blow-off valve 9 through the gas-liquid mixer 24, a switching valve 86, 86' is provided as shown in FIGS. 1 and 2, or a This can also be achieved by providing separate channels leading to the high pressure blow-off valve and the low pressure jet nozzle as shown in FIG. The high-pressure blow-off valve 9 is equipped with a valve stem 26 and a blow-off port 27 which are compressed by a spring 25 shown in FIG. When the pressure in the water pipe 6 rises to the extent that the valve 11 is opened, the high-pressure blow-off valve 9 is opened by the water pressure.
The high-pressure hot water that has passed through the gas-liquid mixer 24 is blown out from the outlet 27 as fine white bubbles. The switching valve may be, for example, a high/low pressure automatic switching valve 86 as shown in FIG. 1 or a high/low pressure manual switching valve (as shown in FIG. 2).
A three-way valve) 36' can be used. As shown in FIG. 8, the high-low pressure automatic switching valve has a passage 40 that communicates with a high-pressure outlet 88 and a low-pressure outlet 39, which are bored on the opposite side from the fluid inlet 37. Valve body 41.4
When the pump discharge pressure is low, the valve body 41 closes the high-pressure outlet 88 and opens the low-pressure outlet 39 by the elastic force of the spring 44. Further, when the pump discharge pressure is high, the spring 44 is pressed by the discharge pressure of the pump 3 acting on the pilot part 45 of the switching valve, the valve stem 48 is pushed up, and the valve body 42 is moved to the low pressure outlet 89.
is closed and the high pressure outlet 88 is opened. 4
6 is a known automatic exhaust valve, 47 is a gas-liquid separation tank, and undissolved air in the hot water is discharged from the automatic exhaust valve.

On the other hand, the low-pressure jet nozzle 8 is circulated by the pump 8 as shown in FIG. The hot water sent into the flow path 8o is ejected from the narrow flow path 82 into the rapidly expanding wide chamber 83, and the air introduced from the air inflow path 81 is Hot water and air are drawn into the chamber 88 from the passage 84, mixed in the chamber 33, and the mixed fluid is ejected from the nozzle 85 as a jet foam into the bathtub.

As for the inlet 5 for taking out hot water from inside the bathtub, a well-known inlet equipped with a check valve is applied, as outlined in FIGS. 1 to 8, and its detailed structure is omitted. ing.

(Effects of the Invention) As described in detail below, the jet bath apparatus according to the present invention includes a pump unit A equipped with a pump 3 for circulating hot water 2 in a bathtub 1, and a suction side pipe 4 of a pump 8. An inlet 5 for hot water in the bathtub 2 and a discharge side pipe 6 of the pump 3 connected to
In a bathtub unit (B) equipped with a low-pressure jet nozzle 8 and a high-grade blow-off valve 9, which are branched and connected via a two-way valve 7 to When the discharge side pipe 6 of the pump is communicated with the high pressure blow-off valve 9 by operation and the pressure inside the discharge side pipe 6 rises, the valve is opened due to the increase in the internal pressure of the pipe 6, and the suction side of the pump 8 is opened. It is equipped with an air supply valve that supplies air to the pipe line 4 and a gas-liquid mixer 24 that finely mixes the air supplied to the discharge side pipe line 6 of the pump 8. The structure of the removably attached bathtub unit can be simplified, and it can be conveniently handled and compact. Also, when the two-way valve 7 is operated to connect the discharge side pipe 6 of the pump 3 to the low pressure jet nozzle side, the discharge side pipe 6
The jet foam can be ejected into the bathtub 1 by the discharge force of the pump 8 without increasing the internal pressure of the bathtub. Then, when the two-way valve 7 is switched and the discharge side pipe line 6 is connected to the high pressure blow-off valve side, the pressure in the discharge side pipe line 6 of the pump 8 increases due to the valve pressure of the high-pressure blow-off valve, and the pressure is maintained at a predetermined level. When the pressure in the discharge side pipe 6 opens the air inlet valve 11 and the high pressure outlet valve 9, the air inlet valve opens. When the valve 11 is opened, air is introduced into the suction side pipe line 4 of the pump 8, and the introduced air is dissolved in hot water by high pressure, and then passes through the gas-liquid mixer 24 to form bubbles from the nozzle 27 of the high-pressure blow-off valve 9. It is blown out as fine white foam with a particle size of about 30 microns. These fine bubbles have an oxygen content of 30% or more, which is abnormally higher than the 20% oxygen content in the atmosphere.

These fine bubbles with a high oxygen content adhere to the skin and float away fat and dirt at the entrance of the injection hole, activating the human body to help the skin breathe, and synergistically with the thermal effect of the hot water, the blood in the capillaries increases. It improves the flow of water and gives a refreshing feeling after taking a bath.

In addition, microbubbles are generated by air dissolved under high pressure, and as they are bubbles with increased energy, their temperature is higher than the water temperature, so even if you take a bath at a temperature lower than the normal water temperature, you will feel warm. Unlike traditional bubble baths, there is no drop in water temperature.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and include the first embodiment.
The figure is a schematic diagram of the entire device, FIGS. 2 and 8 are schematic diagrams of the entire device of other embodiments, FIG. 4 is a sectional view of the air supply valve, and FIG. 5 is a part of the gas-liquid mixer. 6 is a sectional view of the high-pressure blow-off valve, FIG. 7 is a sectional view of the low-pressure jet nozzle, and FIG. 8 is a sectional view of the high-low pressure automatic switching valve. DESCRIPTION OF SYMBOLS 1... Bathtub, 2... Hot water, 3... Pump, 4... Suction side pipe, 5... Suction port, 6... Discharge side pipe, 7... Double force valve,
8... Low pressure jet nozzle, 9... High pressure blow-off valve, 24... Gas-liquid mixer, A... Pump unit,
B...Unit in the bathtub. Patent applicant: Family Co., Ltd. Representative: Tokio Tachikawa

Claims (1)

[Claims] A pump unit includes a pump for circulating hot water in the bathtub, an inlet for hot water in the bathtub connected to a suction side pipe of the pump, and a branch connection to a discharge side pipe of the pump via a two-way valve. an in-bath unit equipped with a low-pressure jet nozzle and a high-pressure blow-off valve, in which a discharge-side conduit of the pump is communicated with the high-pressure blow-off valve by operating the two-way valve in the pump unit; When the internal pressure of the discharge side pipe increases, the valve is opened by the pipe internal pressure and air is introduced into the suction side pipe of the pump. What is claimed is: 1. A jet bath device characterized by being equipped with a gas-liquid mixer that finely mixes the air and sends the mixed air to a high-pressure blow-off valve.