JP2000166789A - Simple bubble-jet generating device for bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple bubble-jet generating device for a bathtub, which device can be installed at low cost by use of city water pressure without adding a pressurizing pump. SOLUTION: A city water supply faucet 12 installed in a bathroom is connected by a connecting apparatus 13 to a pressure water supply pipe 11 communicated with an ejector mechanism 17. The city water supplied is injected from an injection nozzle 18 into an air suction part 19 and drags and entrains ambient air via an intake passage 8 by means of a negative pressure force and a frictional force generated between atmosphere and the surface of a high-speed water stream. After the ambient air is mixed in the city water as air bubbles inside a gas-liquid mixing pipe 20, the city water is delivered into a bathtub 1 as a bubble-jet 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple bubble jet generator for a bathtub which can be installed at a low cost even in an existing bathtub by using the pressure of tap water without adding a pressurizing pump. .

[0002]

2. Description of the Related Art A bathtub function having a bubble jet generator is widely recognized as a jacuzzi bath.

[0003] This function is to raise the pressure of bath water sucked from a bathtub by a pressurizing pump, to suck the surrounding air by passing through a venturi mechanism or an ejector mechanism, mix it as air bubbles, and discharge it into the bathtub. It is the greatest attraction that the user can get a comfortable massage effect and mental relaxation by bathing in the ejected bubble jet while hitting the bathtub.

Here, a conventional example will be described with reference to FIG. 51 is a general household bathroom, 52 is a tub installed in the bathroom, 53 is a venturi mechanism for discharging a bubble jet 65 into the tub, and the venturi mechanism 53 has a tapered tube portion 54 and a suehiro tube. It comprises a throat 56 and a discharge port 57 which are the smallest cross-sectional area provided between the portions 55. Reference numeral 58 denotes an air suction pipe, 59 denotes a water supply pipe, 60 denotes a pressure pump, and 61 denotes a discharge pipe. 6 more
2 is stored bath water, 63 is a pressurized pump control circuit, 6
Reference numeral 4 denotes a pressure pump operation panel that can be operated from the bathroom.

In the above configuration, when the pressure of the bath water 62 sucked up from the bathtub 52 is increased by the pressurizing pump 60 through the water supply pipe 59 and supplied to the venturi mechanism 53 through the discharge pipe 61, At the point of flowing into 56, the static pressure drops according to Bernoulli's theorem. For this reason, a pressure difference is generated between the air and the outside air, and the surrounding air is sucked through the air suction pipe 58 that communicates the throat 56 with the outside air.
After being mixed as bubbles in 5, the mixture is discharged from the discharge port 57 as a bubble jet 65 into the bathtub 52.

The ejected bubble jet 65 applies a comfortable striking force to the human body by the ejection force, and strongly removes dirt attached to the skin by ultrasonic vibration generated when the mixed bubbles are decomposed. It is possible to dissolve.

As another conventional example, as shown in FIG. 10, a product in which a venturi mechanism 53 is provided downstream of a discharge pipe 61 of a forced circulation type reheating apparatus 71 installed outside a bathroom is also known. The apparatus uses the forced circulation pump 72 for reheating, which is installed inside the apparatus, as a pressurizing pump for generating a bubble jet, and has the same mechanism as that of the conventional example.

However, the reheating function of the reheating device 73 allows the temperature of the discharged bubble jet 65 to be adjusted, and the bubble jet function and the forced circulation reheating function can be switched. ing. Further, by adding a water purifying / sterilizing function to these functions, there is also a product that is so-called a 24-hour bath.

[0009]

However, in the prior art, it is necessary to install a water supply pipe, a discharge pipe, and a venturi mechanism communicating with the water supply pipe and the discharge pipe via a pressurizing pump in a bathtub. It is necessary to purchase a lot of equipment and remodeling costs to add a bathtub to the bathtub. Therefore, the spread of bathtubs to ordinary households is slow for recognition.

Therefore, an object of the present invention is to use tap water supplied from a water supply faucet installed in a bathroom without using an additional pressurizing pump, even in an existing bath tub. An object of the present invention is to provide a simple bubble jet generator for a bathtub which can be installed at low cost and easily.

[0011]

According to a first aspect of the present invention, there is provided a venturi for generating a negative pressure by supplied pressure water, and an air intake for communicating the throat of the venturi with the atmosphere. In a bubble jet generation device provided with one or more venturi mechanisms comprising a path, a simple water bath for a bathtub, wherein a pressure water supply pipe communicating with the venturi mechanism is connected to a tap water supply port installed in a bathroom. It is a bubble jet generator.

In a second configuration, an injection nozzle for injecting the supplied pressurized water, a gas-liquid mixing pipe disposed through the injection nozzle and an air suction portion, and communicating the air suction portion with the atmosphere. In a bubble jet generating device provided with one or more ejector mechanisms each including an intake path to be connected, a bathtub configured to connect a pressure water supply pipe communicating with the ejector mechanism to a tap water supply port installed in a bathroom. Is a simple bubble jet generator.

A third configuration is provided with one or a plurality of venturi mechanisms including a venturi for generating a negative pressure by the supplied pressure water and an intake path for communicating the throat of the venturi with the atmosphere. A discharge port is opened on a shower discharge surface provided with a plurality of small-diameter pressure water injection holes, and a pressure water supply path switching mechanism for switching the pressure water supply path to one of the pressure water injection holes and the venturi mechanism is provided. It is a simple bubble jet / shower device for bathtub.

[0014] In a fourth configuration, an injection nozzle for injecting the supplied pressurized water, a gas-liquid mixing pipe disposed through the injection nozzle and an air suction unit, and communicating the air suction unit with the atmosphere. One or a plurality of ejector mechanisms each including an intake path to be ejected, and a discharge port of the ejector mechanism is opened to a shower discharge surface provided with a plurality of small-diameter pressure water injection holes, and any one of the pressure water injection holes and the ejector mechanism is provided. This is a simple bath jet / shower device for a bathtub provided with a pressure water supply path switching mechanism for switching a pressure water supply path.

In a fifth aspect, in the first to fourth aspects, the pressure water supply pipe communicating with the venturi mechanism or the ejector mechanism is connected to a shower water supply hose installed in a bathroom. It is.

Finally, a sixth configuration is the same as the first to fifth configurations, except that an annular projection is provided to project around the discharge port of the venturi mechanism or the ejector mechanism.

[0017]

According to the first or second configuration, since the driving source of bubble jet generation is determined by the ordinary tap water pressure, the tap water supply such as a cold / hot water supply faucet installed in the bathroom is required. The pipes can be simply installed with a simple connecting device at the mouth, and can be installed inexpensively and easily even in an existing bathtub without increasing the number of pressurized pumps.

Further, according to the third or fourth configuration, by operating the pressure water supply path switching mechanism, the bubble jet generator and the shower can be appropriately switched and used. Convenience is improved.

Further, according to the fifth configuration, in addition to the effects of the first to fourth configurations, the pressure water supply pipe is connected to the shower water supply hose installed in the bathroom, thereby achieving international standard. It is possible to adopt the screw connection of
The development cost and manufacturing cost of the connector can be reduced.

Finally, according to the sixth configuration, in addition to the functions of the first to fifth configurations, the state in which the leading edge of the annular projecting portion is brought into contact with the surface to be cleaned such as the shoulder, the chest or the foot. By supplying tap water, the space consisting of the surface to be cleaned, the inner wall of the annular projection and the bubble jet discharge surface or shower discharge surface becomes a cleaning tank, and the impact force of the direct hit of the bubble jet discharged from the discharge port and the cleaning Strong agitation by the powerful vortex of the bubble jets retained in the tank and the ultrasonic vibration generated when the mixed air bubbles are decomposed. Powerful cleaning power and comfort on the surface to be cleaned, that is, the shoulders, chest, feet, etc. It can give a great massage effect. When the surface to be cleaned is the inner surface of the bathtub, it can be used for cleaning the bathtub.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below. In FIG. 1, 1 is a bathtub, 2 is a bubble jet generator main body, 3 is a venturi mechanism, 4 is a tapered tube portion, 5 is a divergent tube portion, and 6 is a throat portion having a minimum sectional area. Also,
Reference numeral 7 denotes an air suction port communicating with the throat 6.

Reference numeral 8 denotes an intake path, which is connected to the atmosphere and the air intake port 7
It has the function to communicate. 9 is a discharge port, 10 is a bubble jet discharge surface, 11 is a pressure water supply pipe, 12 is a tap water supply faucet installed in the bathroom, and the pressure water supply pipe 11 is connected to the tap water supply faucet 12 by a connection device 13. It is connected. Reference numeral 14 denotes bath water stored in a bathtub, and the venturi mechanism 3 is installed at a position where the bath water 14 is used.

Reference numeral 15 denotes a fitting such as a suction cup.
This is an instrument for attaching the bubble jet generator main body 2 to the inner wall of the bathtub 1 or its vicinity. Here, the attachment is a holder configured to be detachable from the bubble jet generator main body 2, and when the holder is attached to the inner wall of the bathtub, the user can easily remove the bubble jet generator main body 2 from the holder, and The bubble jet 16 can be discharged to a limited portion such as a shoulder, a chest, a foot, and the like, and the convenience and comfort are further improved.

At this time, the intake passage 8 and the pressure water supply pipe 11
It is preferable to use a hose having flexibility and rubber-like elasticity such as nylon or polyurethane, and to configure it as a double tube or parallel tube. This improves the handling of the device, which is preferable.

When tap water is supplied by opening the tap water supply faucet 12 in the above-described configuration, the tap water that has passed through the pressure water supply pipe 11 flows into the venturi mechanism 3 and flows from the tapered tube section 4 to the throat section 6. At every point, the static pressure drops due to Bernoulli's theorem. Thereby, the intake path 8 and the air inlet 7
Then, the air is sucked into the bathtub 1 from the discharge port 9 as a bubble jet 16 after being mixed as air bubbles in the divergent tube portion 5.

When tap water is considered as a driving source for generating bubble jets, the energy possessed varies depending on the region. However, when calculated from the flow rate and the pressure in the venturi mechanism 3 of the present invention, a working rate of about 15 to 30 W is obtained. Become. This is almost equivalent to the rate of pressure water discharged from a pressurizing pump employing a motor having an output of 50 to 100 W, which is a sufficient value for a bubble jet generator used in a home bathtub.

The strength of the bubble jet 16 can be adjusted by increasing or decreasing the amount of water supplied according to the degree of opening of the tap water supply faucet 12, and furthermore, the hot water temperature installed in the bathroom as a tap water supply source. By connecting to a hot water faucet with an adjustment function, the temperature of the supply water can be adjusted arbitrarily,
Comfort is further improved.

Next, a second embodiment of the present invention will be described below. In FIG. 2, 1 is a bathtub, 2 is a bubble jet generator main body, 17 is an ejector mechanism, 18 is an injection nozzle, 1
Reference numeral 9 denotes an air suction unit, and reference numeral 20 denotes a gas-liquid mixing tube. Here, the inside diameter of the gas-liquid mixing tube 20 is set to be larger than the nozzle diameter of the injection nozzle 18, and is arranged substantially coaxially via the air suction portion 19.

Reference numeral 8 denotes an intake path, which has a function of communicating the atmosphere with the air intake section 19. 11 is a pressure water supply pipe,
Reference numeral 12 denotes a tap water supply faucet installed in the bathroom, and the pressure water supply pipe 11 is connected to the tap water supply faucet 12 by a connection device 13. Reference numeral 14 denotes bath water stored in the bathtub, and the ejector mechanism 17 is installed at a position where the bath water is used.

When tap water is supplied by opening the tap water supply faucet 12 in the above configuration, the tap water that has passed through the pressure water supply pipe 11 is jetted from the jet nozzle 18 to the air suction section 19, and the atmosphere and the high-speed water flow. Due to the negative pressure and friction generated between the surface and the surface, the surrounding air is dragged and drawn in through the intake path 8, mixed as air bubbles in the gas-liquid mixing pipe 20, and then discharged from the discharge port 9 as the bubble jet 16 into the bathtub 1. Discharge inside.

At this time, the method for adjusting the strength of the bubble jet 16 and the fact that the temperature of the supply water can be arbitrarily adjusted by connecting to a hot water faucet provided with a hot water temperature adjusting function installed in the bathroom are as described above. This is the same as the first embodiment.

Next, a third embodiment of the present invention will be described below. In FIG. 3, reference numeral 21 denotes a shower discharge surface, in which a small-diameter pressure water injection hole 22 and a discharge port 9 of the venturi mechanism 3 are open. Further, reference numeral 23 denotes a pressure water supply path switching mechanism, which describes an example using a ball valve 24 as an example of the switching mechanism.

At the position of the ball valve 24 in FIG. 3, the pressurized water is supplied only to the venturi mechanism 3, so that it can be used as a bubble jet generator. On the other hand, when the position of the ball valve 24 is moved as shown in FIG.
2 and can be used as a shower device.

Therefore, the two functions of the bubble jet generator and the shower device can be appropriately switched and used according to the user's preference, and the comfort and convenience are improved.

Next, a fourth embodiment of the present invention will be described below. In FIG. 5, reference numeral 21 denotes a shower discharge surface, in which a small-diameter pressure water injection hole 22 and the discharge port 9 of the ejector mechanism 17 are open. Further, reference numeral 23 denotes a pressure water supply path switching mechanism, which describes an example using a ball valve 24 as an example of the switching mechanism.

At the position of the ball valve 24 in FIG. 5, the pressurized water is supplied only to the injection nozzle 18 of the ejector mechanism 17, so that it can be used as a bubble jet generator. By moving the position of the ball valve 24, it can be used as a shower device as in the third embodiment. Therefore, similarly to the third embodiment, the two functions of the bubble jet generator and the shower device can be appropriately switched and used according to the user's preference, and the comfort and convenience are improved.

Further, a fifth embodiment of the present invention will be described below. In FIG. 6, 25 is a shower water supply hose installed in the bathroom, 26 is a connector, and the connector 26 has a function of communicating the shower supply hose 25 and the pressure water supply pipe 11.

At present, when considering tap water supply faucets in general households, various shapes including foreign products are recognized. Therefore, it is very difficult to develop a connection device that fits all of these shapes, and requires enormous development costs and manufacturing costs.

On the other hand, the connection with the shower water supply hose 25 is made by screw connection, and an international screw standard can be adopted. Therefore, the connection tool 26 can be standardized, and the development cost and manufacturing cost of the connection tool 26 can be reduced.

Finally, a sixth embodiment of the present invention will be described below. In FIG. 7, 31 is an annular protrusion, 9 is a discharge port,
Reference numeral 10 denotes a bubble jet discharge surface, and the annular protrusion 31 protrudes from the bubble jet discharge surface 10 so as to surround the discharge port 9.

Reference numeral 32 denotes a leading edge of the annular projecting portion.
When tap water is supplied by opening the tap water supply faucet 12 in this state, the bubble jet 16 is discharged from the discharge port 9 into the bathtub 1 as in the first or second embodiment.

Here, as shown in FIG. 8, the bubble jet generator main body 2 is detached from the bathtub 1, and the leading edge 32 of the annular projecting portion is removed.
When the tap water is supplied in a state where the tap water is brought into contact with the surface 33 to be cleaned, the space formed by the surface 33 to be cleaned, the inner wall of the annular projection 31 and the bubble jet discharge surface 10 becomes the cleaning tank 34, and is discharged into this. The bubble jet 16 stays while swirling, and is then discharged through the gap between the contact portion between the leading edge 32 of the annular projection and the surface 33 to be cleaned.

Accordingly, the impact force of the direct hit of the bubble jet 16 discharged from the discharge port 9 against the surface to be cleaned 33 forming the bottom surface of the cleaning tank 34 and the force of the bubble jet 16 staying in the cleaning tank 34 The stirring force by the strong vortex and the ultrasonic vibration generated when the mixed air bubbles are decomposed are applied, and act as a strong detergency.

For this reason, when the shoulder, the chest, the feet, etc. of the human body are brought into contact with the leading edge 32 of the annular projection as the surface to be washed 33, mental relaxation with strong washing power and a comfortable massage effect can be obtained. In addition, when the surface 33 to be cleaned is the inner surface of the bathtub 1, it can be used for cleaning the bathtub 1.

At this time, if the edge 32 of the annular projecting portion is formed of an elastic material such as silicone rubber, the gap with the surface 33 to be cleaned can be appropriately opened by the discharge pressure of the bubble jet 16 and drained. It is possible and convenient. In addition, since the annular projecting portion 31 is configured to be detachable, the annular projecting portion 31 can be replaced with an object to be cleaned and used, thereby improving convenience.

Further, by forming the annular projection 31 from a water-permeable material such as sponge or a dense brush, the annular projection 31 is covered by the leading edge 32 while draining from the outer wall surface of the annular projection 31. The cleaning surface 33 can be rubbed, and a further cleaning effect can be expected.

[0047]

As described above, according to the bubble jet generator of the first or second configuration of the present invention, the driving source for bubble jet generation is determined by the ordinary tap water pressure. The pipes are simply connected to a tap water supply port such as a cold / hot water supply faucet installed in the bathroom with no additional equipment, and can be installed inexpensively and easily even in an existing bathtub.

According to the third or fourth configuration of the present invention, by operating the pressure water supply path switching mechanism, the bubble jet generating apparatus and the shower apparatus can be appropriately switched and used. The convenience of is improved.

Further, according to the fifth configuration of the present invention, by connecting the pressure water supply pipe to the shower water supply hose installed in the bathroom, it becomes possible to adopt an international standard screw connection. The development cost and manufacturing cost of the connector can be reduced.

Finally, according to the sixth aspect of the present invention, the tap water is supplied in a state where the leading edge of the annular projection is in contact with the surface to be cleaned such as the shoulder, the chest, the foot, etc. The space consisting of the surface, the inner wall of the annular projection and the bubble jet discharge surface or shower discharge surface becomes the cleaning tank. Due to the agitation power generated by the air bubbles and the ultrasonic vibration generated when the mixed air bubbles are decomposed, a strong cleaning power and a comfortable massage effect can be given to the surface to be cleaned, that is, the shoulders, chest, feet and the like.

[0051]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a structure according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a structure according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a structure according to a third embodiment of the present invention.

FIG. 4 is a cross-sectional view when a ball valve is moved in a third embodiment.

FIG. 5 is a cross-sectional view illustrating a structure according to a fourth embodiment of the present invention.

FIG. 6 is a cross-sectional view illustrating a structure according to a fifth embodiment of the present invention.

FIG. 7 is a sectional view illustrating a structure according to a sixth embodiment of the present invention.

FIG. 8 is a cross-sectional view illustrating a state in which a leading edge of an annular protrusion is used in contact with a surface to be cleaned in a sixth embodiment of the present invention.

FIG. 9 is a cross-sectional view illustrating a structural example of a conventional bubble jet generator.

FIG. 10 is a cross-sectional view illustrating another structural example of a conventional bubble jet generator.

[Description of Signs] 1 Bathtub 2 Bubble Jet Generator Main Body 3 Venturi Mechanism 4 Convergent Tube Part 5 Sue Wide Tube Part 6 Throat Part 7 Throat Part 7 Air Inlet 8 Intake Path 9 Outlet 10 Bubble Jet Discharge Surface 11 Pressure Water Supply Pipe 12 Tap Water Supply faucet 13 Connecting device 14 Bath water 15 Mounting device 16 Bubble jet 17 Ejector mechanism 18 Injection nozzle 19 Air suction unit 20 Gas-liquid mixing tube 21 Shower discharge surface 22 Pressure water injection hole 23 Pressure water supply path switching mechanism 24 Ball valve 25 Shower Water supply hose 26 Connector 31 Annular protruding part 32 Annular protruding part tip edge 33 Surface to be cleaned 34 Wash tank 51 Bathroom 52 Bath tub 53 Venturi mechanism 54 Tapered tube part 55 Sue wide tube part 56 Throat part 57 Discharge port 58 Air suction pipe 59 Water supply Piping 60 Pressure pump 61 Discharge pipe 62 Bath water 63 Pressure port Flop control circuit 64 pressure pump operation panel 65 bubble jet 71 forced circulation Reheating device 72 Reheating for forced circulation pump 73 Reheating heating device

Claims (6)

[Claims] 1. A bubble jet generating apparatus comprising one or more venturi mechanisms comprising a venturi for generating a negative pressure by supplied pressure water and an intake path for communicating the throat of the venturi with the atmosphere. A pressure water supply pipe communicating with the mechanism is connected to a tap water supply port installed in the bathroom,
Simple bubble jet generator for bathtub 2. An injection nozzle for injecting the supplied pressure water, a gas-liquid mixing pipe disposed through the injection nozzle and an air suction part, and an intake path for communicating the air suction part with the atmosphere. In a bubble jet generator having one or more ejector mechanisms, a simple water bath for a bath tub is characterized in that a pressure water supply pipe communicating with the ejector mechanism is connected to a tap water supply port installed in a bathroom. Jet generator 3. A venturi for generating a negative pressure by the supplied pressure water, and one or more venturi mechanisms comprising an intake path for communicating the throat of the venturi with the atmosphere, and a discharge port of the venturi mechanism has a small diameter. And a pressure water supply path switching mechanism for switching a pressure water supply path to any one of the pressure water injection hole and the venturi mechanism. Bubble jet / shower for bathtub 4. An injection nozzle for injecting the supplied pressurized water, a gas-liquid mixing pipe disposed through the injection nozzle and an air suction unit, and an intake path for communicating the air suction unit with the atmosphere. One or more ejector mechanisms are provided, and a discharge port of the ejector mechanism is opened to a shower discharge surface provided with a plurality of small-diameter pressure water injection holes, and a pressure water supply path is provided to any one of the pressure water injection holes and the ejector mechanism. A simple bubble jet / shower device for bathtub, characterized by providing a pressure water supply path switching mechanism 5. A pressure water supply pipe communicating with the venturi mechanism or the ejector mechanism is connected to a shower water supply hose installed in a bathroom.
A simple bubble jet generator for a bathtub according to any one of claims 1 to 4, or a simple bubble jet / shower device for a bathtub. 6. A simple bubble jet generator for a bathtub or a bathtub according to claim 1, further comprising an annular protrusion protruding so as to surround a discharge port of said venturi mechanism or said ejector mechanism. Bubble jet / shower dual use device