JPH01148258A - Jet stream bath apparatus - Google Patents

Abstract

PURPOSE:To automatically control an air take-in amount by the emission of a pump and to perform the mixing injection of ultrafine air bubbles, by bringing the pump and a nozzle to specific constitution. CONSTITUTION:When a two-way valve 7 is turned toward a low pressure jet nozzle 8 to operate a pump 3, the hot water 2 in a bathtub 1 is sent to the low pressure jet stream nozzle 8 from a water sucking device 5 under pressure through a filter, a check valve 40, a suction pipeline 4, a pump 3, an emission pipeline 6 and the two-way valve 7, and air is mixed in the hot water 2 from an inflow passage 31 to inject an air bubble jet stream into the buthtub 1. When the two-way valve 7 is changed over toward a high pressure jet stream nozzle 9, the pressure of the hot water of the emission pipeline 6 of the pump rises and the valve stem 15 of a shuttle valve 11 is pressed through a branch circuit 10 to open a valve 14 and air is introduced into the suction pipeline 4 of the pump from a take-in part 21 to be mixed with hot water, and said air and hot water are sent to the emission pipeline 6 under pressure to be finely mixed in a high pressure jet stream nozzle 9 and emitted into the buthtub through a relief valve 28.

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 with the circulating hot water, and ejecting the hot water into the bathtub along with air bubbles. be.

(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 and 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 and 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 Patent Application Laid-open 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 opening the air intake port. The adjustment itself is not very difficult because it is done by adjusting the temperature, but the amount of air taken in cannot be controlled in relation to the pump pressure, that is, the discharge pressure of hot water from the pump, and the discharge jet The amount of air intake must be adjusted each time depending on the strength. 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.

According to the present invention, air is automatically mixed in as the pressure of the discharge side pipe of the pump increases, and whether or not air is mixed in or removed is determined depending on the magnitude of the pressure, and the dissolution rate of oxygen in hot water is improved to exceed The present invention provides a jet bath device that can mix and spray fine air bubbles.

(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. A nozzle unit includes a low-pressure jet nozzle and a high-pressure jet nozzle that are branched and connected to the discharge side pipe of the pump and the pump via a two-way valve, and the pump unit is connected to the discharge side of the pump by operating the two-way valve. A shuttle valve is provided in which when the side pipe is communicated with the high pressure jet nozzle and the internal pressure of the discharge side pipe of the pump increases, the valve is opened by the internal pressure of the pipe and supplies air to the suction side pipe of the pump. Become.

The shuttle valve of the pump unit is provided between a branch line communicating with the discharge side line of the pump and a suction side line of the pump, and the flow line of the two-way valve is connected to a high-pressure jet nozzle,
When the switch is switched, the pressure in the discharge side of the pump increases due to the flow resistance in the high-pressure jet nozzle, and when the pressure in the pipe reaches a predetermined pressure, the valve stem is pushed by the pressure inside the pipe and the air intake is removed. Air is drawn from the inlet into the suction side pipe line of the pump.

In addition, high-pressure jet nozzles are, for example,
As shown in Figure 1 of Publication No. 6, it consists of a gas-liquid mixer and a relief valve, which are provided with spiral flow paths that alternate in opposite directions, and the flow direction of hot water is controlled between the inlet side and the outlet side. The pressure in the pump discharge line is increased by the flow resistance and the resistance of the relief valve during several conversions, and the air mixed in by the operation of the shuttle valve is finely mixed by the gas-liquid mixer. A device with a function of discharging is applicable.

A well-known jet foam nozzle is applied to the low-pressure jet nozzle, and has a function of mixing air when hot water is jetted by a pump and discharging a so-called jet foam jet.

(Function) When the pump is operated with the two-way valve of the nozzle unit directed toward the low-pressure jet nozzle, hot water in the bathtub flows through the filter and check valve from the suction port of the water absorber attached to the nozzle unit. The bubbles are then introduced into the suction pipe, through the pump, into the discharge pipe, and then through a two-way valve to the low-pressure jet nozzle, where air is mixed in when ejected into the bathtub, creating a jet of bubbles inside the bathtub. It is squirted. Next, when the flow path of the two-way valve is switched to the high-pressure jet nozzle side, the hot water pressure in the discharge side pipe of the pump increases due to the flow path resistance in the high-pressure jet nozzle, and that pressure increases the discharge pressure to the low-pressure jet nozzle. Yoφ
(If the pressure is about 2 to 3 kg/cd, the discharge pressure will act on the shuttle valve via the branch line, pushing the valve stem, opening the valve, and introducing air into the suction side line of the pump.) The hot water is mixed with air as it passes through the pump, and is then pumped to the discharge pipe, where the hot water and air are finely mixed as it passes through the flow path in the high-pressure jet nozzle. The foam is then discharged into the bathtub via a relief valve, and is ejected into the bathtub as 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 schematically shown in FIG. A nozzle unit B includes a low-pressure jet nozzle 8 and a high-pressure jet nozzle 9 which are branched and connected to an inhaler 5 for hot water in the bathtub 2 and a discharge side pipe 6 of a pump 8 connected to Consisting of

The pump unit A is provided with a shuttle valve 11 between a branch pipe 10 communicating with the discharge pipe 6 of the pump 8 and the suction pipe 4 of the pump 8 . As shown in FIG. 2, the shuttle valve 11 includes a suction section 18 that is connected linearly to the suction side conduit 4 of the pump 8 and is equipped with a jet passage 12 whose cross section is reduced in the middle part; A valve rod 15 that is operated by the water pressure of the branch pipe 10 and has a conical valve 14 at its end; a spring 16 that presses the valve rod 15 with a predetermined elasticity on the valve opening side; a space 17 formed on the radial side; an air passage 18 connecting the space 17 and the jet passage 12 of the suction section 18;
and an air intake section 21 having an air intake passage 20 equipped with a filter 19, and when the pressure in the discharge side pipe 6 of the pump 8 rises above the elasticity of the spring 16, the pressure is transferred to the branch pipe. 10 on the valve stem 15, the valve stem 15 is pushed against the elasticity of the spring 16, and the conical valve 14 is opened, and the air intake passage 20 and the space 17 are opened.
The jet passage 12 of the suction part 13 is communicated with
The hot water flowing at high speed exerts a suction action on the air passage 18, and this suction action draws outside air in the direction of the arrow from the air intake passage 20 through the space 17 toward the air passage 18, and the jet passage Air is mixed into the hot water flowing through 12.

In the present embodiment, the high-pressure jet nozzle 9 includes, as shown in FIG. and a relief valve 28 equipped with a jet discharge port 27, and the hot water discharged from the discharge side pipe line 6 of the pump 8 flows into the spiral passage 22, 28 of the gas-liquid mixer 24.
The hot water pressure in the discharge side pipe 6 increased due to the resistance when flowing and the elasticity of the spring 25 of the relief valve 28, and the pressure in the pipe 6 increased to the extent that the shuttle valve 11 described above was opened. At this time, the relief valve 28 is opened by the hot water pressure, and the high-pressure hot water that has passed through the gas-liquid mixer 24 is ejected from the jet outlet 27 as a jet of fine white bubbles.

On the other hand, the low pressure jet nozzle 8 is circulated by the pump 8 as shown in FIG.
It includes a hot water flow passage 30 through which hot water is sent, and an air inflow passage 81 formed around the outer periphery of the flow passage 30,
The hot water fed into the flow passage 80 is introduced into the wide chamber 88 from the narrow passage 82, and the air introduced from the air inflow passage 81 is fed into the chamber 88 from the narrow passage 34, and inside the chamber 88. Hot water and air are mixed and the mixed fluid is discharged from the nozzle 85 as a jet foam into the bathtub.

As for the inhaler 5 for taking out hot water from inside the bathtub, a well-known inhaler equipped with a check valve 40 as schematically shown in FIG. 1 is applied, and its detailed structure is omitted.

(Effects of the Invention) As detailed above, the jet bath device according to the present invention has a bathtub 1
A pump unit A includes a pump 8 for circulating hot water 2 in the bathtub, an inhaler 5 for the hot water inside the bathtub 2 connected to the suction side pipe 4 of the pump 8, and 2 to the discharge side pipe 6 of the pump 8. It consists of a nozzle unit B that is equipped with a low-pressure jet nozzle 8 and a high-pressure jet nozzle 9 that are branched and connected via a two-way valve 7, and the pump discharge side pipe 6 is connected to the pump unit by switching the two-way valve 7. is communicated with the high-pressure jet nozzle 9 and the pressure in the discharge side pipe 6 increases, the valve is opened due to the increase in the internal pressure of the pipe 6, and air is sent to the suction side pipe F@4 of the pump 3. Therefore, an existing jet foam nozzle with an air mixing function is used as the low-pressure jet nozzle 8, and a relief valve that opens the high-pressure jet nozzle 9 with the gas-liquid mixer 24 at a predetermined pressure is used as the low-pressure jet nozzle 8. If configured with a bubble nozzle consisting of a valve 28, 2
When the flow valve 7 is operated to connect the discharge side conduit 6 of the pump 3 to the jet foam nozzle side, the internal pressure of the discharge side conduit 6 does not increase and the discharge force of the pump 3 is used as in the conventional jet device. A jet foam jet can be discharged into the bathtub 1. When the two-way valve 7 is switched and the discharge side pipe line 6 is connected to the gas-liquid mixer 24 side, the resistance inside the gas-liquid mixer and the valve pressure of the relief valve 28 cause the discharge side pipe line 6 of the pump 8 to communicate with the gas-liquid mixer 24 side. When the pressure inside rises and reaches a predetermined value, that is, the valve pressure created by the springs of the relief valve 28 and shuttle valve 11 or higher, the pressure inside the discharge side pipe 6 opens the shuttle valve 11 and the relief valve 28. When the shuttle valve 11 is opened, air is introduced into the suction side pipe 4 of the pump 8, and the introduced air is dissolved in hot water by high pressure, and further passes through the gas-liquid mixer 24 to the nozzle 27 of the relief valve 28. At the same time, the bubbles are ejected as fine white bubbles with a particle size of about 80 microns. These fine bubbles have an oxygen content of 80% or more, which is higher than the 2% oxygen content in the atmosphere.

These microbubbles with a high oxygen content adhere to the skin and float away fat and dirt at the entrance to the pores, 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 flows well and gives a refreshing feeling after taking a bath.

In addition, because microbubbles are created by air dissolved under high pressure, they have increased energy and therefore have a higher temperature than the water temperature, so even if you take a bath at a temperature lower than the normal water temperature, you will not 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, Figure 2 is a sectional view of each valve, Figure 8 is a sectional view of the valve, and Figure 4 is a sectional view of the jet foam nozzle. It is. 1... Bathtub, 2... Warm water, 8...
Pump, 4... Suction side pipe line, 5...
Inhaler, 6...Discharge side conduit, 7...2
Direction valve, 8...Low pressure jet nozzle, 9...High pressure jet nozzle, A...Pump unit, B...Nozzle unit.

Claims (2)

[Claims] (1) A pump unit equipped with a pump for circulating hot water in the bathtub, an inhaler for hot water in the bathtub connected to the suction side pipe of the pump, and a two-way valve connected to the discharge side pipe of the pump. It consists of a nozzle unit having a low-pressure jet nozzle and a high-pressure jet nozzle that are branched and connected, and the discharge side pipe of the pump is communicated with the high-pressure jet nozzle by operating the two-way valve, and the discharge side is connected to the pump unit. 1. A jet bath device characterized by being provided with a shuttle valve that opens the valve when the internal pressure of the side pipe increases and sends air to the suction side pipe of the pump. (2) The jet bath device according to claim 1, wherein the high-pressure jet nozzle comprises a gas-liquid mixer and a relief valve that opens when the inside of the discharge side pipe reaches a predetermined pressure.