JP2016049499A - Air bubble mixer and air bubble mixed shower apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mix an air bubble mixer that enables a passing gas to be mixed when water flows and prevents inside water from flowing out and water from residing.SOLUTION: Outer air is absorbed by a decompression part generated by a stream flowing out of an orifice via a passing air-liquid stopper and a vent hole and mixed in the stream to flow out as an air bubble mixed liquid. In the passing air-liquid stopper, the surface of powder constituting a porous body coupled with the powder is coated with a thin liquid repellent film. This enables outer air to be absorbed by a decompression part through micropores formed by the porous body from outer an air introduction hole. Water advancing in a reverse direction gets droplets larger than the micropores formed by the liquid repellent film and therefore does not pass through the passing air-liquid stopper and does not flow out of the air introduction hole.SELECTED DRAWING: Figure 1

Description

The present invention relates to an improvement of a bubble mixing device that generates a decompression section by a liquid flow, introduces (suctions) gas from an outside air inlet using the decompression in the decompression section, and mixes bubbles into the liquid flow.
In particular, the present invention relates to a bubble mixing device that prevents residual liquid from flowing out to an outside air inlet after bubble mixing.
Furthermore, the present invention relates to a bubble mixing device that does not cause sanitary problems due to a structure that prevents outflow.
The present invention also relates to a bubble mixing shower apparatus that generates a decompression unit by a water flow, introduces (inhales) air using the decompression in the decompression unit, and mixes bubbles in the water flow.
More specifically, the present invention relates to a bubble mixed shower apparatus that can prevent residual water in the shower from flowing out of an outside air introduction hole after bubble mixing.
More specifically, the present invention relates to a bubble mixed shower apparatus that does not cause sanitary problems due to a structure that prevents outflow.
In this specification, even when “water” is used, it also includes “warm water” and “hot water”. Similarly, when “liquid” is used, it includes liquids of all temperatures. The “liquid” includes all liquids such as water and oil. The term “gas” includes air and other gases unless otherwise specified. The term “predetermined” includes either a fixed or indefinite meaning.

A typical prior art will be described below.
The following symbols are reference symbols in Patent Document 1.
As a first conventional technique, a negative pressure forming pipe portion 2 is formed at the base end of the head body 1, and an air introduction hole 3 is formed in the tube wall of the negative pressure forming pipe 2 and connected to the shower hose 14. The injection port 4a of the nozzle part 4 is disposed in the negative pressure forming pipe 2, and the center axes of the nozzle part 4 and the negative pressure forming pipe 2 are configured to coincide with each other. There is known a shower head for a bathroom characterized in that a bent pipe part 5 is formed on the inner wall surface of the bent pipe part 5 on an extension line of the central axis of the nozzle part 4 (Patent Document) 1).

Next, the second prior art will be described.
The following symbols are reference symbols in Patent Document 2.
As a second prior art, a nozzle 12 having a large number of small holes is formed at the tip, and a partition tube 13 is inserted into the main body 11 from the base of the cylindrical main body 11 to form a cylindrical air inflow chamber 14. In addition, an outside air suction port 11a is formed at a position close to the nozzle 12 of the main body 11 opposite to the air inflow chamber 14, and an orifice member 15 is disposed on the base side of the partition tube 13 so that a decompression chamber is formed in the partition tube 13 The decompression chamber 13b is decompressed by a liquid such as water flowing in the partition tube 13 by forming an inner suction port 13c that communicates the decompression chamber 13b and the air inflow chamber 14 in the partition tube 13. A shower nozzle is known in which air is sucked through the outside air suction port 11a, the air inflow chamber 14 and the inner suction port 13c based on the decompression, and bubbles are mixed into the liquid (Patent Document 2).

  As a third conventional technique, for example, a waterproof and moisture-permeable material such as Gore-Tex (registered trademark) that allows gas molecules to pass but does not allow water molecules to pass therethrough is known (Non-Patent Document 1).

Japanese Utility Model Publication 05-026151 (paragraphs 0004 to 0008, FIG. 1) Japanese Patent No. 3747323 (paragraphs 0008 to 0033, FIGS. 1 to 4)

Gore-Tex in Free Encyclopedia Wikipedia (http://en.wikipedia.org/wiki/%E3%82%B4%E3%82%A2%E3%83%86%E3%83%83%E3%82%AF % E3% 82% B9)

  In the first prior art, when hot water as liquid is no longer supplied to the nozzle 4 or when the head main body 1 is maintained in an upright state, the hot water in the head main body 1 flows out of the air introduction hole 3 due to gravity. It is inevitable to do. The user who sees the outflow from the air introduction hole 3 may have the illusion that the stopper is not completely closed, and may repeat the stopper closing operation. There was a problem that there was. On the other hand, when it is not used for a long period of time, it is necessary to drain water inside, but since all residual water flows out from the air introduction hole 3, it does not remain inside.

In the second prior art, even when water is no longer supplied into the partition tube 13 or even when the main body 11 is kept in a standing state, the level of the liquid in the main body 11 due to gravity is the nozzle 12. It is inevitable to flow out of the outside air suction port 11a until it drops to the outside air suction port 11a close to, but since not all the remaining water in the main body 11 flows out, the problem due to the above illusion may be reduced. it can. However, it is inevitable that water remains in the air inflow chamber 14 between the steps of the outside air suction port 11a and the inner suction port 13c. When not used for a long period of time, it is necessary to drain the internal water so that germs do not grow in the air inflow chamber 14, but the outside air suction port 11a and the inner suction port 13c are small in size, and the remaining air inflow chamber 14 remains. Draining water is cumbersome.
When the shower nozzle according to the second prior art is used, there is a risk that various germs may propagate in the remaining water in the air inflow chamber 14, and as a result, there is a risk of harming health. Further, the user who sees the outflow from the outside air suction port 11a has an illusion that the stopper is not completely closed, which may cause the same problem as the first prior art.

  On the other hand, as in the third prior art, a material that allows gas molecules to pass but not water molecules is known. Therefore, by disposing the waterproof / breathable material of the third prior art in the air introduction hole 3 in the first prior art, ensuring the air permeability and blocking the water flow, the residual water in the head body 1 flows out. It is conceivable to prevent this. However, there is a problem that a waterproof and moisture-permeable material that currently exists cannot obtain sufficient air permeability and cannot obtain a bubble-containing liquid in which sufficient bubbles are mixed.

The first object, which is a basic object of the present invention, is that when the liquid flows, the gas can be mixed into the liquid as bubbles by the decompression unit generated by the flow of the liquid, and when the liquid supply is stopped, It is to provide a bubble mixing device in which the liquid does not flow out and the liquid does not stay. Accordingly, since the first object is the basic object of the present invention, if at least the first object can be achieved, it belongs to the technical scope of the present invention, and the subordinate object described below needs to be achieved. There is no sex.
A second object which is a subordinate object of the present invention is to provide a bubble mixing device capable of mixing sufficient bubbles into a liquid.
A third object, which is a subordinate object of the present invention, is to provide a bubble mixing device that is easy to manufacture.
A fourth object, which is a secondary object of the present invention, is to provide a bubble mixing device that can be manufactured at a relatively low cost.
A fifth object, which is a subordinate object of the present invention, is to provide a bubble mixing device that can prevent the outflow of liquid at a relatively low cost.
A sixth object, which is a secondary object of the present invention, is to provide a bubble mixing device that can prevent the outflow of liquid at a low cost.
A seventh object which is a subordinate object of the present invention is to provide a bubble mixing device capable of controlling the flow rate of the liquid so as not to exceed a predetermined amount.
The eighth object, which is the second basic object of the present invention, is to provide a bubble mixed shower device in which the water inside does not flow out even when the supply of water is stopped.
A ninth object, which is a secondary object to the second basic object of the present invention, is to provide a bubble mixed shower device in which water does not stay inside.
A tenth object which is a subordinate object to the second basic object of the present invention is to provide a bubble mixed shower apparatus capable of mixing sufficient bubbles in water.
An eleventh object, which is a secondary object to the second basic object of the present invention, is to provide a bubble mixed shower device that is easy to manufacture.
A twelfth object which is a subordinate object to the second basic object of the present invention is to provide a bubble mixed shower apparatus which can be manufactured relatively inexpensively.
A thirteenth object, which is a secondary object to the second basic object of the present invention, is to provide a bubble mixed shower apparatus that can prevent the outflow of water at low cost.
A fourteenth object which is a secondary object to the second basic object of the present invention is to provide a bubble mixed shower apparatus which can be manufactured at a relatively low cost.
A fifteenth object, which is a secondary object to the second basic object of the present invention, is to provide a bubble mixed shower apparatus capable of controlling the flow rate of water so as not to exceed a predetermined amount.
A sixteenth object, which is a secondary object to the second basic object of the present invention, is a bubble-containing shower that is easy to use and does not flow out of water even when the supply of water is stopped. Is to provide a device.
A seventeenth object that is a subordinate object to the second basic object of the present invention is that there is substantially no change in the discharge direction of the shower mixed with bubbles even when the water supply pressure changes. It is to provide a bubble mixed shower device.
An eighteenth object that is a subordinate object to the second basic object of the present invention is that the discharge direction of a shower mixed with bubbles does not change even when the water supply pressure changes, and An object of the present invention is to provide a bubble mixed shower device having a strong flow in the center of the shower.
A nineteenth object that is a subordinate object to the first or second basic object of the present invention is to provide a bubble mixing device or a bubble mixing shower device that can disperse the adhesion of dust to the vent liquid stop. is there.

In order to achieve this object, the first invention according to claim 1 is configured as follows.
A bubble mixing device that generates a bubble mixed liquid flow by forming a pressure reducing portion by a liquid flow and introducing outside air from the outside air inlet to the pressure reducing portion, wherein the air is introduced between the pressure reducing portion and the outside air inlet. A liquid stop is disposed, and the vent liquid stop is configured by adhering a liquid repellent film to the porous body, and external air can flow from the external air inlet through the porous body to the decompression unit. However, the bubble mixing device is characterized in that the outflow of liquid from the decompression unit to the outside air inlet is prevented by the liquid repellent action of the liquid repellent film.

  A second aspect of the invention according to claim 2 is a bubble mixing device that forms a bubble mixed liquid flow by forming a pressure reducing portion by a liquid flow and introducing outside air into the pressure reducing portion from an outside air introduction port. A vent liquid stopper is disposed between the decompression unit and the outside air inlet, and the vent liquid stopper is configured by attaching a liquid repellent film to the porous body, and the liquid repellent film is formed of the porous body. Although it is possible to allow the outside air to flow from the outside air introduction port to the decompression unit through the fine pores of the porous body attached to the surface of the peripheral wall constituting a large number of micro pores, the outside air introduction port from the decompression unit The liquid mixing device is characterized in that the liquid is prevented from flowing out by the liquid repellent action of the liquid repellent film.

  According to a third aspect of the present invention, there is provided a bubble mixing device that generates a bubble mixed liquid flow by forming a pressure reducing portion by a liquid flow and introducing outside air into the pressure reducing portion from an outside air introduction port. A cylindrical rectification unit formed around and through which the liquid flows, and an orifice coaxial with the axis on the downstream side of the rectification unit and having a smaller diameter than the rectification unit, and the orifice continuously to the orifice And a fluid passage pipe formed with a decompression section having a diameter larger than that of the orifice, and a vent hole formed in the fluid passage pipe of the decompression section and communicating between the inside and the outside of the fluid passage pipe. A vent liquid stopper disposed inside or outside the vent hole, wherein the vent liquid stopper body is formed by attaching a liquid repellent film to a porous body, and from the outside air introduction port through the porous body Inflow of outside air to the decompression unit is possible, but the decompression Outflow of liquid to the outside air inlet from a bubbly apparatus characterized by being blocked by the liquid-repellent action of the liquid-repellent film.

  A fourth invention according to claim 4 is the bubble mixing apparatus according to any one of the first to third inventions, wherein the porous body is a porous body combined with powder.

  According to a fifth aspect of the present invention, there is provided a bubble mixing apparatus according to the fourth aspect, wherein the powder is ceramic.

  A sixth invention according to claim 6 is the bubble mixing apparatus according to the fifth invention, wherein the ceramic is alumina ceramic.

  A seventh invention according to claim 7 is the air bubble mixing apparatus according to any one of the first to sixth inventions, wherein the liquid repellent film is a fluorine coating film.

  According to an eighth aspect of the present invention based on the seventh aspect, in the seventh aspect, the fluorine coating film is a porous body made of a fluorine coating agent obtained by dissolving a fluororesin in a nonflammable fluorine-based solvent or petroleum-based solvent. The bubble mixing device is characterized in that it is formed by being dried after being attached to the bubble.

  A ninth invention according to claim 9 is the bubble mixing device according to the third invention, further comprising a flow rate adjusting device disposed upstream of the orifice in the liquid passage pipe.

  According to a tenth aspect of the present invention, there is provided a bubble mixed shower apparatus that forms a bubble mixed water flow by forming a pressure reducing portion by a water flow and introducing outside air from the outside air introduction port into the pressure reducing portion. An aeration liquid stopping body is disposed between the outside air introduction port, and the aeration liquid stopping body is configured by attaching a liquid repellent film to the porous body, from the outside air introduction port through the porous body. A bubble mixed shower device characterized in that inflow of outside air to the decompression unit is possible, but outflow of water from the decompression unit to the outside air inlet is blocked by a liquid repellent action of the liquid repellent film. It is.

An eleventh aspect of the invention according to claim 11 is a bubble mixed shower device that forms a bubble mixed water flow by forming a pressure reducing portion by a water flow and introducing outside air into the pressure reducing portion from an outside air introduction port. An aeration liquid stopping body is disposed between the outer air inlet and the outside air introduction port, and the aeration liquid stopping body is configured by attaching a liquid repellent film to the porous body, and the liquid repellent film is a large number of the porous body. It is possible to allow the outside air to flow from the outside air inlet to the decompression part through the many pores of the porous body, which is attached to the surface of the peripheral wall constituting the fine pores, but from the decompression part to the outside air introduction port The bubble mixed shower device is characterized in that the outflow of water is prevented by the liquid repellent action of the liquid repellent film.

A twelfth aspect of the invention according to claim 12 is a bubble-containing shower device that discharges a bubble-containing water flow by forming a pressure-reducing portion by a water flow and introducing outside air into the pressure-reducing portion from an outside air introduction port. A cylindrical rectifying unit formed by the liquid flow, and coaxial with the axis on the downstream side of the rectifying unit, an orifice having a smaller diameter than the rectifying unit, and the orifice continuously with the orifice. A fluid passage pipe that is coaxial and has a pressure reducing hole having a diameter larger than that of the orifice; a fluid passage hole that is formed in the fluid passage pipe of the pressure reducing hole portion and communicates the inside and the outside of the fluid passage pipe; A vent liquid stopper disposed in or outside the vent hole,
The vent liquid stopper has a liquid repellent film attached to a porous body, and the liquid repellent film is attached to a surface of a peripheral wall constituting a large number of fine pores of the porous body. Although it is possible for inflow of outside air from the outside air introduction port to the decompression unit via the outside, the outflow of water from the decompression unit to the outside air introduction port is prevented by the liquid repellent action of the liquid repellent film. It is the bubble mixed shower device characterized.

  In a thirteenth aspect of the invention according to the twelfth aspect of the invention, the vent liquid stopper is a cylindrical body that is placed on the liquid pipe so as to be positioned around the vent hole. It is a bubble mixed shower device.

  A fourteenth aspect of the invention according to claim 14 is the bubble mixed shower apparatus according to the thirteenth aspect, wherein the cylindrical body is formed of a porous body combined with powder.

  A fifteenth aspect of the present invention is the bubble mixed shower apparatus according to the fourteenth aspect, wherein the powder is ceramic.

  A sixteenth aspect of the present invention according to claim 16 is the bubble mixed shower apparatus according to the fifteenth aspect, wherein the ceramic is alumina ceramic.

  A seventeenth aspect of the present invention according to claim 17 is the bubble mixed shower apparatus according to any one of the tenth to sixteenth aspects, wherein the liquid repellent film is a fluorine coating film.

  According to an eighteenth aspect of the present invention, in the seventeenth aspect, the fluorine coating film comprises a porous body made of a fluorine coating agent obtained by dissolving a fluorine resin in a non-flammable fluorine solvent or petroleum solvent. It is a bubble mixed shower apparatus characterized by being formed by being dried after being attached to the water.

  A nineteenth aspect of the present invention is the bubble mixed shower apparatus according to the twelfth aspect, further comprising a flow rate adjusting device disposed upstream of the orifice in the liquid passage pipe.

  A twentieth aspect of the invention according to claim 20 is a bubble mixed shower apparatus that discharges a bubble mixed water flow by forming a pressure reducing portion by a water flow and introducing outside air into the pressure reducing portion from an outside air introduction port. A cylindrical shower main body in which an air-water discharge plate having a large number of discharge ports formed therein is disposed, and a liquid pipe mounting portion is formed at the root portion where the inlet opening is formed, and the shower main body from the inlet opening A fluid passage tube inserted into the fluid passage tube and fixed to the mounting portion of the fluid passage tube, and formed with an orifice for generating water and a decompression portion, and a fluid passage tube of the decompression portion. A vent hole that is formed and communicates between the inside and the outside of the fluid passage tube, and a cylindrical vent fluid stopper that is fitted to the outside of the fluid passage tube in which the vent hole is formed, The stationary body is formed into a cylindrical shape by bonding ceramic powder. A liquid repellent film is attached to the surface of the peripheral wall constituting a number of fine pores of the formed porous body, and it is possible for inflow of outside air from the outside air inlet through the fine pores of the porous body to the decompression portion. However, in the bubble mixed shower device, the outflow of water from the decompression unit to the outside air inlet is prevented by the liquid repellent action of the liquid repellent film.

  In a twenty-first aspect of the present invention based on the twentieth aspect, the gas-water discharge plate is disposed at a position that forms approximately 60 degrees with respect to the axis between the liquid-flow pipes, and the axis of the liquid-flow pipe. Discharge water that is disposed on the extension of the air and further guides the bubble-mixed water flow guided by the air / water guide part at a predetermined distance between the air / water guide part and the air / water discharge plate. It is a bubble mixed shower apparatus characterized by providing a guide hole.

  In a twenty-second aspect of the invention according to the twenty-first aspect, in the twenty-first aspect, the discharge water guide hole has an inlet diameter not less than the diameter of the outlet of the liquid flow pipe and has a length not less than the inlet diameter. This is a bubble mixed shower device.

  In the first invention according to claim 1, since the decompression part is formed by the liquid flow, outside air is introduced into the decompression part from the outside air introduction port through the fine pores of the aeration liquid stopping body. As a bubble, a bubble-containing liquid flow is obtained. When the liquid flow stops, the decompression portion disappears, so that bubbles are not mixed. On the other hand, the liquid remaining in the decompression part tends to flow out from the decompression part to the outside air inlet due to gravity. However, since it is formed as a relatively large droplet by the water repellent function of the liquid repellent film attached to the porous body, it cannot pass through the fine pores of the porous body. In other words, the liquid is blocked from the decompression portion to the outside air inlet side by the liquid repellent action of the liquid repellent film and cannot flow out from the outside air inlet. Therefore, there is an advantage that the first object which is the basic object of the present invention can be achieved.

  In the second invention according to claim 2, since the decompression part is formed by the liquid flow, outside air is introduced into the decompression part from the outside air introduction port through the fine pores of the aeration liquid stopping body. As a bubble, a bubble-containing liquid flow is obtained. When the liquid flow stops, the decompression portion disappears, so that bubbles are not mixed. On the other hand, the liquid remaining in the decompression part tends to flow out from the decompression part to the outside air inlet due to gravity. However, the liquid repellent film is attached to the surface of the peripheral wall constituting a large number of fine pores of the porous body. As a result, the liquid that penetrates into the fine pores, or the liquid that is about to penetrate, is repelled from the entire peripheral wall of the fine pores by the liquid repellent function of the liquid repellent film, so that it is formed as a relatively large droplet. It cannot pass through the fine pores of the porous body. In other words, the liquid is blocked from the decompression portion to the outside air inlet side by the liquid repellent action of the liquid repellent film and cannot flow out from the outside air inlet. Therefore, there is an advantage that the first object which is the basic object of the present invention can be achieved.

  In the third aspect of the present invention, the flow of the liquid flowing through the liquid passing pipe increases rapidly when the liquid passes through the orifice, so that the inside of the liquid passing pipe is depressurized. Gas (air) that is outside air is sucked in through the vent hole. Since a liquid repellent film is attached to the porous body inside or outside the vent hole, a gas-permeable member that allows gas to pass through but does not allow liquid to pass through is provided. Gas is sucked in through the vent liquid stop and mixed with the liquid in the liquid passage pipe to obtain a bubble mixed liquid. The vent liquid stopper can pass a gas such as air, but cannot pass a liquid such as water. Therefore, when the supply of the liquid to the liquid pipe is stopped, the liquid in the liquid pipe does not flow out of the vent pipe due to the liquid repellent action of the liquid repellent film. Therefore, there is an advantage that the first object which is the basic object of the present invention can be achieved.

In the fourth invention according to claim 4, since the basic configuration is the same as the first to third inventions, there is an advantage that the first object which is the basic object of the present invention can be achieved.
Further, in the fourth invention, since the porous body constituting the aeration liquid stopping body is a porous body in which powder is bonded, a porous body having a predetermined air permeability can be obtained. Since the fixed amount of bubbles can be sufficiently mixed in the liquid flow, there is an advantage that the second object which is a subordinate object of the present invention can be achieved.

In the fifth aspect of the present invention, since the basic configuration is the same as that of the first to third aspects, there is an advantage that the first object which is the basic object of the present invention can be achieved. In addition, there is an advantage that the second object which is a subordinate object can be achieved.
Further, the porous body is composed of ceramic powder. It is easy to control the size of the ceramic powder with the current manufacturing technology, and it is easy to collect a predetermined size of powder to manufacture a porous body. There is an advantage that the third object which is a subordinate object of the present invention can be achieved.

In the sixth aspect of the present invention, the basic configuration is the same as that of the first to third aspects, so that there is an advantage that the first object which is the basic object of the present invention can be achieved. In addition, there is an advantage that the second and third objects which are subordinate objects can be achieved.
Further, since the powder constituting the porous body is an alumina ceramic, it is inexpensive among ceramics, and there is an advantage that the fourth purpose which is a secondary purpose can be achieved.

In the seventh invention according to claim 7, since the basic configuration is the same as the first to third inventions, the first object as the basic object and the second object as the secondary object of the present invention are achieved. There are advantages you can do.
Furthermore, since the liquid repellent film is a fluorine coating film, the liquid repellent effect is high, and the liquid repellent film can be obtained at a relatively low cost, so that the fifth object of the present invention can be achieved.

In the eighth invention according to the eighth aspect, the basic configuration is the same as that of the first to third inventions. Therefore, there is an advantage that the first object which is the basic object of the present invention can be achieved. Moreover, there exists an advantage which can also achieve the 2nd-5th objective which is a subordinate objective.
Further, the vent liquid stopper is formed by forming a fluorine coating film on the powder surface of the porous body, and the fluorine coating film is dissolved by dissolving the fluororesin in a nonflammable fluorine solvent or petroleum solvent. Since a fluorine coating agent is used, it can be obtained relatively inexpensively, and further, it is formed by drying after attaching the fluorine coating film to the porous body. There is an advantage that the sixth object of the present invention can be achieved.

In the ninth aspect of the present invention, the basic configuration is the same as that of the first to third aspects, so that there is an advantage that the first object which is the basic object of the present invention can be achieved. Moreover, there exists an advantage which can also achieve the 2nd-6th objective which is a subordinate objective.
Further, since the flow rate adjusting device is arranged upstream of the orifice, liquid exceeding the flow rate adjusted by the flow rate adjusting device does not flow, so that the liquid flow rate can be limited. There is an advantage that the objective can be achieved.

  In the tenth aspect of the invention according to claim 10, since the decompression part is formed by the water flow, outside air is introduced into the decompression part from the outside air introduction port through the fine pores of the aeration liquid stopping body, and bubbles are generated in the water stream. As a result, a shower flow containing bubbles is obtained. When the water flow stops, the decompression portion disappears, so that bubbles are not mixed. On the other hand, the water remaining in the decompression part tends to flow out from the decompression part to the outside air inlet due to gravity. However, since the water repellent function of the liquid repellent film attached to the porous body forms a relatively large water droplet, the residual water cannot pass through the fine pores of the porous body. In other words, water is blocked from the decompression portion to the outside air inlet side by the liquid repellent action of the liquid repellent film and cannot flow out from the outside air inlet. Therefore, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved.

  In the eleventh aspect of the invention according to the eleventh aspect, since the decompression part is formed by the water flow, outside air is introduced into the decompression part from the outside air inlet through the fine pores of the aeration liquid stopping body, and bubbles are formed in the water stream. As a result, a water stream containing bubbles is obtained. When the water flow stops, the decompression portion disappears, so that bubbles are not mixed. On the other hand, the water remaining in the decompression part tends to flow out from the decompression part to the outside air inlet due to gravity. However, the liquid repellent film is attached to the surface of the peripheral wall constituting a large number of fine pores of the porous body. As a result, the water that penetrates into or enters the fine pores is repelled from the entire peripheral wall of the fine pores by the liquid-repellent function of the liquid-repellent film, and thus is formed as relatively large water droplets. It cannot pass through the fine pores of the material. In other words, the residual water is blocked from the decompression portion to the outside air inlet side by the liquid repellent action of the liquid repellent film and cannot flow out from the outside air inlet. Therefore, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved.

  In the twelfth aspect of the present invention, the water flowing through the liquid passing pipe has a flow passage cross-sectional area that increases when it passes through the orifice, so that the inside of the liquid passing pipe is depressurized. Air as gas is sucked through the pores. A liquid repellent film is attached to the porous body inside or outside the air holes, and a liquid air-stopping body in which fine pores that allow air to pass but do not allow passage of water are arranged. Therefore, air is sucked in through the aeration liquid stopping body, mixed with water in the liquid flow pipe, and a bubble mixed water flow is obtained. Therefore, when the supply of water to the liquid flow pipe is stopped, the liquid repellent function of the liquid repellent film attached to the surface of the powder constituting the fine pores makes the liquid repellent from the entire peripheral wall forming the fine pores. Therefore, since it forms as a comparatively big water droplet, the water which exists in a liquid flow pipe cannot pass through the micropore of a porous body. In other words, the residual water is blocked from the decompression portion to the outside air inlet side by the liquid repellent action of the liquid repellent film and cannot flow out from the outside air inlet. Therefore, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved.

In the thirteenth aspect of the present invention, the basic configuration is the same as that of the tenth to twelfth aspects of the invention. Therefore, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved.
Further, since the vent liquid stopper is a cylindrical body, it is easy to manufacture, and since it is easy to assemble and remove, there is an advantage that assembly and replacement work are easy.

In the fourteenth aspect of the present invention, the basic configuration is the same as that of the tenth to twelfth aspects, and therefore there is an advantage that the eighth object which is the second basic object of the present invention can be achieved. In addition, since it is easy to make the powder sizes uniform, it is easy to obtain a porous body having a predetermined air permeability, so that sufficient ventilation can be secured, so that sufficient air is supplied in the water flow. Since it can mix, there exists an advantage which can achieve the 10th objective which is a secondary objective of the 2nd basic objective of this invention.
Furthermore, since the porous body constituting the cylindrical body is a porous body in which powder is bonded, it is possible to obtain a bubbling water stream in which sufficient bubbles are mixed, and thus a bubbling water stream in which sufficient bubbles are mixed. There are advantages that you can get.

In the fifteenth aspect of the present invention, the basic configuration is the same as that of the tenth to twelfth aspects of the invention. Therefore, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved. Moreover, there exists an advantage which can achieve the 9th-10th objective which is a subordinate objective of a 2nd basic objective.
Furthermore, the porous body that constitutes the ventilation liquid stopper is made of ceramic powder. It is easy to control the size of the ceramic powder with the current manufacturing technology, and there is an advantage that the eleventh object which is a subordinate object of the present invention can be achieved.

In the sixteenth aspect of the present invention, the basic configuration is the same as that of the tenth to twelfth aspects, and therefore there is an advantage that the eighth object which is the second basic object of the present invention can be achieved. Moreover, there exists an advantage which can achieve the 9th-11th objective which is a secondary objective of a 2nd basic objective.
Further, since the powder constituting the porous body is alumina ceramic, it is inexpensive among ceramics, and there is an advantage that the twelfth object which is a subordinate object of the present invention can be achieved.

In the seventeenth aspect of the present invention, the basic configuration is the same as that of the tenth to twelfth aspects of the invention. Therefore, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved. Moreover, there exists an advantage which can achieve the 9th-12th objective which is a subordinate objective of a 2nd basic objective.
Further, since the liquid repellent film is a fluorine coating film, the liquid repellent effect is high, and the liquid repellent film can be obtained at a relatively low cost, so that the thirteenth object of the present invention can be achieved.

In the eighteenth aspect of the invention according to the eighteenth aspect, the basic configuration is the same as that of the tenth to twelfth aspects. Therefore, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved. Moreover, there exists an advantage which can achieve the 9th-13th objective which is a secondary objective of a 2nd basic objective.
Further, the vent liquid stopper has a fluorine coating film formed on the entire peripheral wall of the fine pores of the porous body. In other words. The ventilation liquid stopper is formed by forming a fluorine coating film on the surface of the powder constituting the porous body. The fluorine coating film is a fluorine solution obtained by dissolving a fluororesin in a nonflammable fluorine solvent or petroleum solvent. Since the coating agent is used, it can be obtained at a relatively low cost. Further, since it is formed by drying after attaching the fluorine coating film to the porous body, it can be manufactured easily and inexpensively. There is an advantage that the fourteenth object of the invention can be achieved.

In the nineteenth aspect of the present invention, since the basic configuration is the same as that of the tenth to twelfth aspects, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved. Moreover, there exists an advantage which can achieve the 9th-14th objective which is a secondary objective of a 2nd basic objective.
Furthermore, since the flow rate adjusting device is arranged upstream of the orifice, water exceeding the flow rate adjusted by the flow rate adjusting device does not flow, and therefore the flow rate of water can be limited, so that the fifteenth object of the present invention can be achieved. There are advantages.

In the twentieth invention according to claim 20, since the basic configuration is the same as that of the tenth to twelfth inventions, there is an advantage that the eighth object which is the second basic object of the present invention can be achieved.
Further, the water flowing through the liquid passage pipe has a gas passage through the vent hole communicating with the pressure reducing portion because the cross-sectional area of the flow path rapidly increases when passing through the orifice, and the pressure inside the liquid passage pipe is reduced. Air is inhaled. A liquid repellent film is attached to the porous body inside or outside the vent hole, and a vent liquid stop body that allows air to pass through but does not allow water to pass through is provided. Air is sucked in through the aeration liquid stopping body, mixed with water in the liquid flow pipe, a bubble mixed water flow is obtained, and is ejected from a number of discharge ports of the air / water discharge plate arranged downstream of the decompression section. And the said aeration liquid stopping body can pass gas, such as air, but water cannot pass. Therefore, when the supply of water to the liquid flow pipe is stopped, the water in the liquid flow pipe is repelled from the entire peripheral wall of the fine pores by the liquid repellent function of the liquid repellent film of the aeration liquid stopping body, and becomes a relatively large water droplet. Since it is formed, it cannot pass through the fine pores of the porous body. In other words, the water in the liquid passage does not flow out. Therefore, there is an advantage that the sixteenth object which is a subordinate object of the present invention can be achieved.

In the twenty-first aspect of the present invention, the basic configuration is the same as that of the tenth to twelfth aspects of the invention. Therefore, there is an advantage that the eighth object which is the basic object of the present invention can be achieved.
Further, the bubble-mixed water flowing out from the liquid flow pipe reaches the air / water discharge plate after being guided by the air / water guide and further guided by the discharge water guide hole. Even if there is a change, the bubble-containing water that has flowed out of the liquid pipe is guided in a predetermined direction by the discharge water guide hole and then discharged from the air water discharge plate, so the change in the discharge direction from the air water discharge plate There is an advantage that there is little.

In the twenty-second aspect of the present invention, the basic configuration is the same as that of the tenth to twelfth aspects. Therefore, the eighth object as the basic object and the seventeenth object as the subordinate object of the present invention are achieved. There are advantages you can do.
Furthermore, since the discharge water guide hole has an inlet diameter larger than the diameter of the outlet of the liquid flow pipe and has a length longer than the inlet diameter, almost all of the steam water deflected by the steam water guide section is discharged. After proceeding to the water guide hole, it will be ejected from the steam water discharge plate, so the ejection direction will be on the extension of the discharge water guide hole, so even if the supply pressure changes, the discharge direction from the steam water discharge plate will not change There is an advantage that the 18th object which is a subordinate object can be achieved.

FIG. 1 is a longitudinal sectional view of a faucet equipped with a bubble mixing device of Embodiment 1 of the present invention. FIG. 2 is a longitudinal sectional view of a faucet body of the faucet provided with the bubble mixing device according to the first embodiment of the present invention. FIG. 3 is a longitudinal sectional view of the bubble mixing device used in the bubble mixing device according to the first embodiment of the present invention. 4A and 4B are cross-sectional views of the liquid passing tube of the bubble mixing device used in the bubble mixing device of Example 1 of the present invention, where FIG. 4A is a longitudinal sectional view, and FIG. 4B is a line AA in FIG. It is sectional drawing. FIG. 5 is a longitudinal sectional view of the porous body of the bubble mixing device used in the bubble mixing device of Example 1 of the present invention. FIG. 6 is an enlarged surface view of the porous body of the bubble mixing apparatus of Example 1 of the present invention. FIG. 7 is an enlarged explanatory view of a porous body of the bubble mixing device according to the first embodiment of the present invention. FIG. 8 is an enlarged explanatory view of the liquid repellent film of the bubble mixing device according to the first embodiment of the present invention. FIG. 9 is an enlarged cross-sectional explanatory view of the lock nut of the air bubble mixing device according to the first embodiment of the present invention, in which (A) the first lock nut and (B) are the second lock nut. FIG. 10 is an explanatory diagram of the bubble mixing operation of the bubble mixing apparatus according to the first embodiment of the present invention. FIG. 11 is an overall perspective view of the bubble mixed shower apparatus according to the second embodiment of the present invention. FIG. 12 is a longitudinal sectional view of the bubble mixed shower device according to the second embodiment of the present invention. FIG. 13: is a longitudinal cross-sectional view of the shower main body of the bubble mixing shower apparatus of Example 2 of this invention. FIG. 14 is a vertical cross-sectional view of the bubble-mixed shower device according to the third embodiment of the present invention. FIG. 15: is a longitudinal cross-sectional view of the bubble mixing shower apparatus of Example 4 of this invention.

The best mode of the bubble mixing device in the present invention is a bubble mixing device that generates a bubble mixed water flow by sucking outside air by a water flow, and is formed around an axis, and a columnar rectification unit through which a liquid flows, and And an orifice having a diameter smaller than that of the rectification unit, and being coaxial with the orifice continuously to the orifice and having a diameter larger than that of the orifice. And a vent hole formed in the fluid passage pipe of the pressure reducing hole portion and communicating between the inside and the outside of the fluid passage pipe, and a vent liquid stop disposed in or outside the vent hole. The vent liquid stopper is constituted by attaching a liquid repellent film to the porous body, and the liquid repellent film is attached to the surface of the peripheral wall constituting the numerous fine pores of the porous body, The porous body is alumina sera. The liquid-repellent film is made of a fluorine coating film, and the fluorine coating agent obtained by dissolving the fluororesin in a nonflammable fluorine solvent or petroleum solvent is porous. After being attached to the body, it is formed by drying, and it is possible to allow the outside air to flow from the outside air inlet through the many fine pores of the porous body to the decompression unit, but the outside air introduction from the decompression unit The bubble mixing device is characterized in that the outflow of water to the mouth is blocked by the liquid repellent action of the liquid repellent film.
In the best mode of the bubble mixed shower apparatus according to the present invention, an air / water discharge plate having a large number of discharge ports formed at the tip thereof is disposed, and a mounting portion for a liquid pipe is formed at the root portion where the inlet opening is formed. A cylindrical shower main body, and an orifice that is inserted into the shower main body from the inlet opening and fixed to the mounting portion of the liquid passing pipe, and that forms a pressure reducing portion while water flows. And a vent hole that is formed in the liquid passing pipe of the pressure reducing portion, communicates the inside and the outside of the liquid passing pipe, and the outside of the liquid passing pipe in which the vent hole is formed. A cylindrical liquid-permeable body that is formed by adhering a liquid-repellent film to a porous body, and the porous body is cylindrical by bonding alumina powder. The liquid repellent film is formed of a fluorine coating film. A fluorine coating agent obtained by dissolving a fluororesin in a nonflammable fluorine-based solvent or a petroleum-based solvent and adhering it to the surface of the peripheral wall constituting the numerous fine pores of the porous body, and then dried. In addition, a flow rate adjusting device is disposed upstream of the orifice in the liquid flow pipe, and the flow of outside air from the outside air inlet through the numerous fine pores of the porous body to the decompression unit is possible. However, in the bubble mixed shower device, the outflow of water from the decompression unit to the outside air inlet is prevented by the liquid repellent action of the liquid repellent film.

First, the bubble mixing apparatus 100 according to the first embodiment will be described with reference to FIGS.
The bubble mixing device 100 according to the first embodiment is an example attached to a tap faucet 102, and the amount of water per unit time is reduced by mixing air bubbles into water as liquid flowing out from the tap 102. The faucet 102 is configured to discharge water and achieve a desired purpose. That is, the bubble mixing device 100 has a function of mixing bubbles in the liquid (water) flow to generate a bubble mixed liquid (water) flow, and at least the liquid (water) flows and generates the decompression unit 104. A liquid passage pipe 108 having an orifice 106 formed therein, a liquid passage pipe 108 opposed to the decompression unit 104, and a vent hole 110 that communicates the inside and the outside of the liquid passage pipe 108. The vent liquid stopper 112 is disposed on the outside, and the vent liquid stopper 112 is coated on the porous body 114 with a liquid repellent film 116. In other words, the liquid repellent film 116 is attached to the porous body 114. In addition to water, other liquids such as warm water and oil can be applied as the liquid, and the gas to be mixed is generally air, but other gases can be mixed as needed. Furthermore, it is generally used to mix air into (warm) water, but it can also be used to mix a desired gas into a liquid as required. In addition, since the first embodiment is an example of water supply, in the following description, “liquid” is described as “water”.

First, the faucet 102 will be described.
The faucet 102 has a function of receiving supply of pressure water from a pressure water supply source and discharging air bubble mixed water from an outlet opening 120 thereof. In the first embodiment, the faucet 102 has a pipe shape as a whole, and has an inverted J shape. It is formed into a mold and includes a faucet body 122 and a bubble mixing device 100. However, the faucet 102 is not limited to an inverted J-shape, and other shapes can be adopted.

The faucet body 122 will be described mainly with reference to FIG.
The faucet body 122 is equipped with a bubble mixing device 100 and has a function of discharging bubble mixed water from the outlet opening 120. In the first embodiment, the tap body 122 is a pipe having a predetermined diameter, and is inverted as a whole. A horizontal turning portion 126 formed in a J-shape and subsequently turned rightward by 90 degrees and turned at an arbitrary radius following the vertical base portion 124, a horizontal portion 128 extending horizontally following the horizontal turning portion 126, A downward turning portion 130 that turns downward at an arbitrary radius of 90 degrees following the horizontal portion 128 is connected, and finally a short hanging portion 132 is connected, and a lower end 137 of the hanging portion 132 is an outlet opening 120.
A mounting portion 134 having a predetermined diameter is formed in the base portion 124 so that the bubble mixing device 100 can be inserted. The mounting portion 134 has an inlet opening 138 at the lower end portion in FIG. 2, a first hole 140 having a first diameter D1 of the maximum diameter, and the second largest downstream of the first hole 140 (upper side in FIG. 2). The second hole 142 having the second diameter D2, the third hole 144 having the third largest third diameter D3 downstream of the second hole 142, and the fourth largest fourth diameter D4 downstream of the third hole 144. A fourth hole 146 is formed. The first hole 140, the second hole 142, the third hole 144, and the fourth hole 146 are formed coaxially with the first axis SL1 of the mounting portion 134, and their length (in the direction along the first axis SL1). The length) is appropriately set according to their functions. A fifth hole 148 having a fifth largest diameter D5 is formed downstream of the fourth hole 146 of the faucet body 122, and the fifth hole 148 is a straight portion 150 formed linearly along the axis SL1. A horizontal arc portion 152 formed in the horizontal turning portion 126, a horizontal portion 154 formed in the horizontal portion 128, a downward arc portion 156 formed in the downward turning portion 130, and a lower portion formed in the hanging portion 132. It is composed of a head portion 158 and has a generally inverted U-shape. The diameters of the straight part 150, the transverse arc part 152, and the downward part 158 are the same.
On the inner peripheral surface of the first hole 140, a mounting screw 160 that is screwed with a fixing screw 164 that is a male screw portion of the bubble mixing device 100 is formed, and is opposed to the distal end portion of the mounting portion 134 in the base portion 124. The wall is formed with an outside air introduction hole 166 having a predetermined diameter communicating with the mounting portion 134 and the outer peripheral surface. Since the outside air introduction hole 166 only needs to have a predetermined flow path cross-sectional area, a plurality of small diameter holes may be formed, or one large diameter hole may be formed. However, when the outside air introduction hole 166 has a small diameter, for example, when four holes are formed with a diameter of 0.5 mm, dust or the like is easily clogged in the outside air introduction hole 166, which is not preferable. On the contrary, when the size of the outside air introduction hole 166 is large, the appearance is deteriorated, which is not preferable. Accordingly, it is preferable to provide one outside air introduction hole 166 with a diameter of about 2 millimeters, and the cross-sectional shape is not limited to a circle, and the arrangement is not limited, but the outside air introduction hole 166 may be arranged at a position that does not affect the appearance. preferable.

Next, the bubble mixing device 100 will be described mainly with reference to FIG.
The bubble mixing device 100 has a function of mixing bubbles in the liquid flow. In the first embodiment, the bubble mixing device 100 includes a liquid flow pipe 108, a vent liquid stop body 112, and a lock nut 162.
The liquid passage tube 108 is inserted into the mounting portion 134 from the inlet opening 138 at the lower end portion of the faucet body 122 in a coaxial state with respect to the first axis SL1, and a fixing screw 164 at the lower end portion which will be described later is provided in the proximal end portion of the faucet body 122. It is fixed to the faucet body 122 in a predetermined positional relationship by being screwed into a mounting screw 160 as a female screw formed on the peripheral surface.

Next, the liquid flow pipe 108 will be described mainly with reference to FIG.
The liquid passing pipe 108 receives pressure water supplied from a supply source such as a public water supply, and when the pressure water passes through the orifice, gas (air) is generated using a reduced pressure region generated on the downstream side of the orifice. It has a function of obtaining bubble-containing water by inhaling and mixing the sucked air into the liquid flow that has passed through the orifice in the form of (fine) bubbles. The rectifying unit 170 formed by the six diameters D6, the orifice 106 formed by the seventh diameter D7 smaller than the sixth diameter D6 on the downstream side of the rectifying unit 170, and immediately downstream of the orifice 106 than the seventh diameter D7. It includes a decompression unit 104 formed by a large eighth diameter D8. In other words, the liquid flow pipe 108 is formed around the second axis SL2 and has a columnar rectifying unit 170 having a predetermined length through which liquid (pressure water) flows, and the axis SL2 downstream of the rectifying unit 170. And an orifice 106 having a predetermined length smaller in diameter than the rectifying unit 170, and coaxial with the orifice 106 continuously downstream of the orifice 106, and larger in diameter than the orifice 106. A decompression unit 104 having a predetermined length is formed. Further, in the first embodiment, an insertion hole 176 for mounting the flow rate adjusting device 218 is formed at the inlet end portion on the upstream side of the rectifying unit 170. The rectifying unit 170, the orifice 106, the decompression unit 104, and the insertion hole 176 are coaxially formed along the common second axis SL2. Here, the second axis SL2 is obtained by adding “second” for the sake of convenience in order to distinguish from the first axis SL1, and is described as the axis SL2 in the claims. The cross-sectional shape of the rectifying unit 170, the orifice 106, or the decompression unit 104 may be an ellipse, a rectangle, a triangle, or the like, but a circle is preferable in consideration of ease of manufacturing and processing. In addition, a tapered hole 186 is preferably provided between the rectifying unit 170 and the orifice 106 in order to suppress as much as possible the generation of turbulent flow due to the difference in diameter between them. The liquid flow tube 108 can be formed by machining or precision casting a metal material, integrally molding with a resin, or molding by a 3D printer.

Next, the orifice 106 will be described.
The orifice 106 has a function of accelerating the water flowing through the rectifying unit 170 to a predetermined speed or more, and is disposed on the same second axis SL2 as the rectifying unit 170 as described above. Has a small diameter and a predetermined first length L1.
Furthermore, the cross-sectional area ratio between the rectifying unit 170 and the orifice 106, in other words, the diameter ratio is preferably about 3 to 1, but is not limited thereto. The first length L1 is preferably 7 to 8 times the seventh diameter D7 of the orifice 106. This setting is for the purpose of rectifying the water flow and reducing the flow resistance as much as possible to efficiently obtain an appropriate pressure reduction in the pressure reduction unit 104. The diameter of the orifice 106 is set in a range of about 2 to 5 millimeters, and a range of 2.5 to 3.5 millimeters is preferable in consideration of versatility with the bubble-mixed shower device and the like of Example 2 described later. . The length L1 of the orifice 106 is preferably 7 to 8 times the orifice diameter, that is, the seventh diameter D7, but is not limited to the seventh diameter D7. By making the ratio of the length L1 and the seventh diameter D7 7 to 8 times, the water flow flowing through the orifice 106 becomes close to rectification, and thus there is an advantage that the decompression in the decompression unit 104 can be obtained stably.

Next, the decompression unit 104 will be described.
The decompression unit 104 has a function of generating the decompression unit 104 by the water flow flowing out from the orifice outlet 178 of the orifice 106. In the first embodiment, the decompression unit 104 is formed so as to increase in diameter rapidly at the orifice outlet 178. A reduced pressure portion 104 is formed by the diameter portion 180. Specifically, following the orifice outlet 178, a decompression hole 182 having an eighth diameter D8 larger than the seventh diameter D7 having the same axis as the second axis SL2 is formed. The decompression hole 182 is formed to have a diameter approximately three times the seventh diameter D7 of the orifice 106. If the diameter ratio is small, the amount of mixed air is reduced because it is not possible to obtain sufficient reduced pressure, and soft discharge water cannot be obtained.If the diameter ratio is large, the amount of reduced pressure per unit area is reduced, Since a sufficient air flow rate cannot be obtained, mixing of bubbles is reduced, and similarly soft discharge water cannot be obtained. Soft discharge water means that the water flow per unit time reduces the amount of water per unit time, thereby reducing the pressing force against the skin and thus providing a soft feel. The decompression hole 182 does not have to have a circular cross section, but in the case of a circular shape, since a uniform atmosphere can be configured for the water flow, stable bubble mixing can be obtained, so that stable bubble mixed water can be obtained, There is an advantage that molding is easy.
Since the depressurization hole 182 has a predetermined second length L2, after being separated from the orifice outlet 178 by a predetermined distance, a bubble-containing water flow in which air is mixed flows into the water.
A vent hole 110 that communicates with the decompression unit 104 is formed in the liquid passage tube 108.

Next, the outer shape of the liquid passing pipe 108 will be described mainly with reference to FIG.
The outer shape of the liquid flow pipe 108 is not particularly limited as long as it can be inserted into the faucet body 122 and attached, but in the first embodiment, the fixing screw 164 is attached to the outer periphery of the base (lower end) of the liquid flow pipe 108. In addition, an annular groove 184 having a predetermined depth DE and a predetermined width W1 is formed on the outer periphery of the decompression unit 104. In the first embodiment, the O-ring 186 (the first O-ring 186-1 and the second O-ring 186-2) is disposed at a predetermined position outside the liquid flow pipe 108, thereby preventing the faucet body 122 from being disposed. It is used for positioning and air / water leakage.
Further, a step portion 190 is formed on the outer periphery of the tapered hole 186 adjacent to the orifice 106, and the base side of the liquid passage tube 108 is formed at the large diameter portion 192 and the tip end side is formed at the small diameter portion 194. Specifically, the small diameter portion 194 is formed on the outer periphery of the orifice 106 and the decompression hole 182 and has the same diameter. A male screw portion 196 is formed at the tip portion around the decompression hole 182. A mounting screw 168 for connection to the pressure water supply device is formed on the outer peripheral surface of the base portion of the liquid flow pipe. The mounting screw 168 is integrated by screwing into a water pipe or a flow rate adjusting device interposed between the water pipe and the water pipe. As a matter of course, a water faucet is disposed in the water supply pipe, and pressure water is supplied to the faucet 102 or the supply is stopped by opening and closing the water faucet.

  The liquid passing pipe 108 is inserted from the inlet opening 138 of the faucet body 122, and is fixed by screwing a fixing screw 164 formed at the base end (lower part) into the mounting screw 160. However, the fixing of the liquid flow pipe 108 to the faucet body 122 may employ known fixing means limited to screws. In a state where the liquid flow pipe 108 is fixed to the faucet body 122, the decompression unit 104 is disposed at a position facing the outside air introduction hole 166. However, the position of the decompression unit 104 may not be opposed to the outside air introduction hole 166. In other words, the position of the decompression unit 104 may be shifted with respect to the outside air introduction hole 166.

Next, the vent hole 110 will be described.
The vent hole 110 has a function of allowing the decompression unit 104 to communicate with the outside of the liquid pipe 108. In the first embodiment, the vent hole 110 is located at a position facing the decompression unit 104, specifically, the bottom wall 188 of the annular groove 184. It is comprised by the small diameter through-hole formed in this. In the first embodiment, the vent hole 110 is formed along the third axis SL3 that intersects the second axis SL2 at a right angle. Specifically, the first vent hole 110A and the second vent hole 110B are formed point-symmetrically with respect to the intersection CP of the second axis SL2 and the third axis SL3. The first vent hole 110A and the second vent hole 110B are not limited to round holes. However, it is preferable to form the first vent hole 110A and the second vent hole 110B in a round hole having a diameter of 1 mm in order to facilitate manufacturing and reduce costs. The number of vent holes 110 may be any number as long as it is one or more. However, in order to obtain the above-mentioned soft discharge water, it is preferable to form two holes with a diameter of 1 mm in order to make the size of the mixed bubbles fine. The third axis SL3 can be inclined with respect to the second axis SL2. However, it is preferable to form the third axis SL3 so that the third axis SL3 is orthogonal to the second axis SL2 because it is easy to manufacture and inexpensive. In the first embodiment, the annular groove 184 is not an essential component, and the vent hole 110 may be directly opened on the peripheral surface of the small diameter portion 194.

Next, the aeration liquid stopping body 112 will be described mainly with reference to FIG.
The vent liquid stop body 112 allows gas to pass from the outer surface 198 side to the inner surface 200 (vent hole 110) side, but does not allow water to pass from the inner surface 200 (vent hole 110) side in the opposite direction to the outer surface 198 side. In the first embodiment, there is a function that allows the passage of air but does not allow the passage of water. In the first embodiment, a porous body 114 in which the surface of the powder 202 is covered with a liquid repellent film 116 is used as the aeration liquid stop body 112. The vent liquid stopper 112 can be replaced with another device having a similar function. The vent liquid stopper 112 is externally attached to the small diameter portion 194 of the liquid passage pipe 108 in a close contact state, and a rubber ring-shaped first packing 201A is provided between the step portion 190 and one end surface of the vent liquid stopper 112. The rubber ring-shaped second packing 201B is interposed between the other end face of the vent liquid stopper 112 and the first lock nut 162A to prevent water leakage through the vent hole 110. In the state where the vent liquid stopper 112 is externally mounted on the small-diameter portion 194, the inner peripheral surface thereof fits closely with the outer peripheral surface of the small-diameter portion 194, and at least one end inner peripheral surface covers the peripheral surface of the annular groove 184. Placed in position. In the first embodiment, the vent liquid stopper 112 has a length about five times as long as the width W1 of the annular groove 184. However, the vent liquid stopper 112 is disposed outside the vent hole 110 and the annular groove 184. Alternatively, it is only necessary to be disposed relative to at least the width W 1 of the annular groove 184, and the vent liquid stopper 112 can be embedded in the vent hole 110 or in the annular groove 184.

Next, the porous body 114 will be described.
The porous body 114 has a function of holding a liquid repellent film 116 that allows a gas to pass therethrough but functions as a liquid, which does not allow the passage of water in the first embodiment. It is composed of an assembly of bodies 202. This is because the porous body 114 in which fine pores having a predetermined size are continuous can be stably manufactured by configuring the powder 201 as an aggregate. In the first embodiment, the porous body 114 is formed by bonding a powder 202 obtained by drying a slurry having an average particle diameter of about 1 micron. In FIG. 7, the powder 202 is shown in a spherical shape for the sake of convenience, but actually has a complicated shape as shown in FIG.
Specifically, alumina ceramic 206, which is a kind of ceramic 204, water, and a ceramic ball for pulverization are placed in a mixer and agitated to pulverize and mix the alumina ceramic 206, and a slurry having a particle size of about 1 micron is obtained. Then, the water is evaporated from the slurry by a spray dryer to obtain a powder 202 of ceramic 204 (alumina ceramic 206). Next, a binding material is added to form a predetermined shape, which is a cylindrical shape in the first embodiment, and then fired to obtain a predetermined inner diameter of the ninth diameter D9, an outer diameter of the tenth diameter D10, and a predetermined third. A porous body 114 that is a cylindrical body 172 having a length L3 is obtained. The ninth diameter D9 can be tightly packaged to the extent that there is no large backlash in the small diameter portion 194, and the tenth diameter D10 is smaller than the second diameter D2 and has the same diameter as the large diameter portion 192. It is. Therefore, when the bubble mixing device 100 is attached to the attachment part 134, a gap G is formed between the outer peripheral surface of the vent liquid stopper 112 and the inner peripheral surface of the second hole 142. In other words, a cylindrical distribution chamber 207 with a gap (thickness) G is formed around the vent liquid stopper 112. The distribution chamber 207 communicates with the outside air introduction hole 166.
The porous body 114 is not limited to a cylindrical shape, and can be formed according to the outer surface shape of the liquid flow pipe 108. For example, when it is inserted into the vent hole 110 (110A, 110B) and installed, it is formed in a columnar shape, and when it is installed in the annular groove 184, it is formed in a thin ring shape.
By using the ceramic 204, since it is relatively easy to make the particle diameters uniform, there is an advantage that it is relatively easy to obtain the porous body 114 having a predetermined air permeability. As the ceramic, a ceramic known at present or produced in the future such as zirconia, alumina, silicon carbide, or silicon nitride can be used.
Further, the use of the alumina ceramic 206 has an advantage that the porous body 114 can be configured at a relatively low cost. That is, as schematically shown in FIG. 7, fine pores 208 are formed between the powders 202, although there are some differences in size, so that these fine pores 208 are at least in the thickness direction or longitudinal direction of the porous body 114. By communicating, the outer surface 198 and the inner surface 200 are configured to have a predetermined air permeability. In other words, gas (air) can pass from the outer surface 198 side to the inner surface 200 side of the porous body 114 or in the opposite direction. In other words, the outside air introduction hole 166, the distribution chamber 207, the vent liquid stop body 112, the annular groove 184, and the vent hole 110 due to the reduced (negative) pressure (atmospheric pressure lower than the atmospheric pressure) generated in the decompression unit 104. The outside air can be inhaled through.

  The porous body 114 may be formed into a cylindrical shape by winding a network having fine pores one or more times in addition to the aggregate of ceramic powders 202. As the net-like body, Cross Cabin (registered trademark) manufactured by Teijin Frontier Co., Ltd. as an insect repellent net can be used. In other words, the porous body 114 is formed with a large number of fine pores 208 of a predetermined size and communicates in the thickness direction, and gas flows from one side to the other side or from the other side to the one side. It is only necessary to be able to pass through and have a predetermined air permeability. However, when the powder 202 is bonded and molded, there is an advantage that the porous body 114 having a predetermined air permeability can be easily manufactured. In Example 1, the alumina ceramic 206 was fired to obtain a porous body 114. The porosity was 40%, the size of the pores was 50 to 100 microns, the bulk density was 2.58 gr / cubic centimeter, and the air permeability was 100 (× 10 − The aeration liquid stop body 112 having the characteristics of 13 square meters) is used.

Next, the liquid repellent film 116 will be described.
The liquid repellent film 116 is in the form of a film and has a function of repelling water. In the first embodiment, the liquid repellent film 116 is formed so as to cover the surface of the powder 202 constituting the porous body 114.
The liquid repellent film 116 only needs to be in the form of a film, and need not be in the form of one continuous complete sheet, and liquid (water) cannot pass through the minute continuous fine pores 208 in the porous body 114. The liquid repellent film 116 according to the present invention corresponds to the liquid repellent film 116 having a function of forming liquid (water) droplets to a certain size. Further, it is not necessary that all of the fine pores 208 have a function of preventing water droplets from passing through, and the above function is exhibited by the function of one fine pore 208 in the continuous fine pores 208 within a predetermined thickness from the inner surface 200 to the outer surface 198. It may be what you do. As the liquid repellent film 116, when the target is water, a fluorine-based coating agent, a silicon-based coating agent, or the like can be used. In the first embodiment, since the target is water, the liquid repellent film 116 is formed by the fluorine-based coating agent 210. An example of the process of forming the liquid-repellent film 116 on the surface of the powder 202 by the fluorine-based coating agent 210 will be outlined as follows: a fluorine-based solution obtained by dissolving a fluorine resin in a non-flammable fluorine-based solvent or a petroleum-based solvent. The coating agent 210 is formed by adhering to the powder 202 constituting the porous body 114 and then drying. Even if it adheres to the outer surface (outer surface 198 and inner surface 200) of the porous body 114 with a brush, after the porous body 114 is immersed in the solution of the fluorine-based coating agent 210 for a predetermined time, it starts from 5 seconds at room temperature. It is dried by leaving it for about 15 minutes. As a result, as indicated by a chain line in FIG. 7, the fluorine-based coating agent 210 that has come into contact with the powder 202 adheres on the surface of the powder 202 in a substantially continuous state of the fluorine coating film 212. More specifically, the surface of the powder 202 forming the fine pores 208 is covered with the fluorine coating film 212, and thus the liquid repellent film 116, up to the inner surface of the porous body 114. In other words, the fine pores 208 are surrounded by the liquid repellent film 116. In Example 1, after the porous body 114 described above was immersed in a fluorosurfing solution manufactured by Fluoro Technology Co., Ltd. for 10 minutes as a fluorine coating agent, it was dried by heating at about 100 ° C. for about 1 hour. An aeration liquid stop body 112 on which a liquid film 116 is formed is used. The deterioration factor of the water repellent effect in the liquid repellent film 116 formed by this fluorosurf is the action of a physical external force on the liquid repellent film 116 or exposure to ultraviolet rays. However, since the liquid repellent film 116 in the first embodiment is attached to the surface of the powder 202 constituting the cylindrical porous body 114 and statically fixed, no physical external force acts, Further, there is no frictional contact with other objects, and since the vent liquid stop 112 is incorporated in the faucet body 122 and is not exposed to ultraviolet rays, it is not necessary to assume the deterioration of the liquid repellent film 116. Exhibits liquid repellent effect for a long time.

Next, the operation and effect of the liquid repellent film 116, and in the first embodiment, the fluorine coating film 212 will be described with reference to FIG.
The fluorine coating film 212 is a low surface tension film and has a liquid repellent function. That is, since the liquid repellent film 116 is a low surface tension film, the water adhering to the film is repelled to form a water droplet 214 shape. In other words, as shown in FIG. 8, when water comes into contact with the flat surface-like liquid repellent film 116 (fluorine coating film 212), the contact angle between the liquid repellent film 116 and the water droplet 214 due to the repelling force received by the water. Since α is as large as about 119 degrees, water presents water droplets 214 repelled so as to come into point contact with the liquid repellent film 116. Further, since the entire circumference of the fine pores 208 is covered with the liquid repellent film 116, the water droplet 214 is repelled from the entire circumference, so that a relatively large water droplet 214 is formed. Since the size of the water droplet 214 is larger than the size of the roughly fine pores 208, in other words, larger than the size of the smallest fine pores 208, in the vent liquid stop body 112 in which a large number of fine pores 208 are continuous, As a result, water cannot pass through. On the other hand, air, which is a gas, is not repelled from the liquid repellent film 116, and can flow through a large number of continuous fine pores 208. In other words, in the first embodiment, the outside air that has passed through the vented liquid stopping body 112 can be sucked into the decompression unit 104 (the decompression hole 182) through the annular groove 184 and the vent hole 110, but the vent hole 110 The passage of water from the side to the outer surface 198 side of the ventilating liquid stop 112 is blocked. Although the fluorine coating film 212 is smaller than the contact angle α with respect to water, it has liquid repellency with respect to oil, so it can be applied to liquids such as oil other than water. .

Next, the lock nut 162 will be described with reference to FIG.
The lock nut 162 has a function of fixing the aeration liquid stopping body 112 to the liquid pipe 108, and in the first embodiment, is constituted by a first lock nut 162A and a second lock nut 162B. Accordingly, the lock nut 162 can be changed to another device as long as it has a function of fixing the ventilation liquid stopper 112 to the liquid pipe 108. For example, in the first embodiment, two lock nuts are used, but one lock nut may be used. The first lock nut 162A is screwed into the male screw portion 196 and screwed to a position where the end surface is pressed with a predetermined force via the second packing 201B so that the vent liquid stopper 112 does not move freely. Further, the second lock nut 162B is screwed into the male screw portion 196 and pressed against the end surface of the first lock nut 162A with a predetermined force, thereby preventing the first lock nut 162A from loosening. Therefore, the lock nut 162 can be changed to another device having a function capable of maintaining the position of the aeration liquid stopping body 112 with respect to the liquid flow pipe. The ring-shaped groove on the outer periphery of the first lock nut 162A is a mounting groove 174 for mounting the O-ring 168-2.

  Therefore, in the bubble mixing device 100, the aeration liquid stop body 112 is fitted to the liquid flow pipe 108, and is integrated with the first lock nut 162A and the second lock nut 162B from the inlet opening 138 of the faucet body 122. The fixing screw 164 at the lower end is inserted into the mounting portion 134 and screwed into the mounting screw 160 to be integrated. In this state, the outside air introduction hole 166 is opposed to the outer surface 198 of the ventilation liquid stopper 112, and the annular groove 184 is also opposed to the inner surface 200 of the ventilation liquid stopper 112. A mounting screw 168 at the lower end of the liquid passage pipe 108 is screwed into a female thread at the end of the pipe connected to a pressure water supply source with a faucet. Water leakage at the connection with the pipe is prevented by the third O-ring 186-3. It is preferable that the annular groove 184, the ventilation liquid stopper 112, and the outside air introduction hole 166 are juxtaposed in the lateral direction. This is to reduce the flow resistance of the outside air to be sucked in as much as possible. However, the positional relationship among the annular groove 184, the ventilating liquid stop body 112, and the outside air introduction hole 166 is not limited to this.

  In FIG. 1, a flow rate adjusting device 218 is connected to the insertion hole 176 at the base of the liquid flow pipe 108. The flow rate adjusting device 218 has a function of adjusting the amount of water flowing to the faucet 102 to a constant level.For example, the flow rate adjusting device disclosed in Japanese Patent Application Laid-Open No. 2011-236921 according to the applicant's application can be adopted. Other devices having similar functions can be used. What is necessary is just to sell with the function to control the amount of water which finally flows out from the exit opening 120, and to reduce the amount of water used. Therefore, the flow rate adjusting device 218 can be attached to a connection pipe other than the base portion of the fluid passage tube 108, but by being attached to the insertion hole 176 in the base portion of the fluid passage tube 108, the entire device can be configured well, There is an advantage that the assemblability is excellent and the cost can be reduced.

Next, the operation of the first embodiment will be described with reference to FIG.
As shown in FIG. 1, when the bubble mixing device 100 is attached to the faucet body 122 and pressure water is supplied to the liquid passing pipe 108, the pressure water is supplied to the orifice 106 following the rectifying unit 170 and the tapered hole 186. The columnar water column 216 is ejected from the orifice outlet 178 at the end face to the large-diameter decompression hole 182. Thereby, since the diameter of the decompression hole 182 is larger than the diameter of the orifice 106, the air around the water column 216 moves in conjunction with the movement of the water column 216, so that the air flow indicated by the arrow A is generated around the water column 216. The decompression unit 104 is generated. Accordingly, the first vent hole 110A, the second vent hole 110B, the annular groove 184, the fine pore 208 of the vent liquid stop body 112, the distribution chamber 207, and the outside air introduction hole 166 are connected to the decompression section 104 as a starting point. Since the decompression part is generated, as a result, the decompression part 104 from the outside air introduction hole 166 through the distribution chamber 207, the vent liquid stopper 112, the annular groove 184, the first vent hole 110A, and the second vent hole 110B. Inhale outside air. The outside air sucked into the decompression unit 104 collides with the water column 216 and is mixed into the water column 216 as fine bubbles. Therefore, a bubble mixed water flow flows out from the tip of the decompression hole 182 and the bubble mixed water flow is sequentially guided by the straight portion 150, the laterally turning portion 126, the laterally facing portion 154, the downward arc-shaped portion 156, and the downwardly facing portion 158. After that, it flows out from the outlet opening 120. When the faucet is closed, gravity acts on at least the water in the straight portion 150 and the laterally turning portion 126 among the water remaining in the faucet body 122. As a result, the water flows back to the vent hole 110 connected to the decompression hole 182, and thus to the annular groove 184. However, as described above, since the surface of the powder 202 that constitutes the fine pores 208 of the porous body 114 is covered with the liquid repellent film 116, the vent liquid stop body 112 is repelled by the liquid repellent film 116. Water droplets 214 are formed by the liquid action, and the water droplets 214 cannot pass through the fine pores 208. Therefore, residual water in the faucet body 122 does not flow out of the outside air introduction hole 166. Further, since air bubbles are mixed in the water flow discharged from the outlet opening 120, the water flow per unit time is inevitably reduced, and there is an advantage that water can be saved. Furthermore, by combining with the flow rate adjusting device 218, the flow rate exceeding the flow rate set in the flow rate adjusting device 218 does not flow.

Next, Example 2 will be described.
In the second embodiment, the bubble mixing apparatus 100 according to the present invention is incorporated in the shower main body 220 to configure the bubble mixing shower apparatus 222. The same parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different configurations will be described. Accordingly, since the bubble mixing device 100 is the same in the first embodiment and the second embodiment, the shower main body 220 having a different configuration will be described mainly with reference to FIG.

  The shower body 220 incorporates the bubble mixing device 100 and has a function of discharging the bubble mixed water from the air / water discharge plate 224. In the second embodiment, the shower body 220 includes the body base 226 and the discharge unit 228. Is included.

First, the main body base 226 will be described.
The main body base 226 has a built-in bubble mixing device 100 and a gripping hand function that a user has in his / her hand. In the second embodiment, the main body base 226 is formed in a cylindrical shape. The internal structure of the main body base 226 has the same configuration as that of the part to which the bubble mixing device 100 is attached in the first embodiment. That is, the first hole 140, the second hole 142, the third hole 144, the fourth hole 146, and the fifth hole 148 having a predetermined diameter and a predetermined length in order from the base (lower end) side. Is formed.

Next, the discharge unit 228 will be described.
The discharge unit 228 changes the direction of the bubble mixed water flowing out from the decompression hole 182 of the bubble mixing device 100, in other words, the straight part 150 serving as the fifth hole 148, by approximately 120 degrees, and then discharges it from the gas water discharge plate 224. In the second embodiment, as is apparent from FIGS. 12 and 13, an arc shape formed with a predetermined length following one side wall of the straight portion 150 far from the steam / water discharge plate 224. And the eleventh diameter D11 having a predetermined length in the direction facing the steam / water guide portion 230 and approximately 4.5 times the fifth diameter D5 of the straight portion 150. The extended discharge water guide part 232 is included. In other words, the fourth axis SL4 of the air / water guide section 232 is set at an intersection angle β of 60 degrees with respect to the axis SL1. In other words, the bubble-containing water flowing out from the straight portion 150 is changed in direction by 120 degrees and discharged from the air / water discharge plate 224.

Next, the air / water discharge plate 224 will be described.
The air / water discharge plate 224 has a function of discharging bubble-mixed water as a fine water flow. In the second embodiment, a large number of small-diameter discharge holes 234 are formed regularly or irregularly. It is a thin plate-like body and is disposed at the tip of the discharge water guide 232. Therefore, the bubble-mixed water reflected by the steam / water guide unit 230 is discharged into an ultrafine water column through the discharge holes 234 formed in the steam / water discharge plate 224.

Next, the operation of the bubble mixed shower device 222 of the second embodiment will be described.
In the bubble mixing shower device 222 of the second embodiment, the structure of the bubble mixing device 100 is the same as that of the first embodiment, so that the operation different from that of the first embodiment will be described.
The bubble-containing water ejected from the decompression hole 182 is guided to the straight portion 150, then collides with the steam / water guide portion 230 and deflected laterally, and further guided by the discharge water guide portion 232, The water is discharged from the discharge hole 234 of the water discharge plate 224 as a very small diameter water flow. Since this discharge water flow contains bubbles, when the water flow discharged from one discharge hole 234 is viewed microscopically, water droplets and bubbles alternately collide with the scalp, so that the water flow continues in the scalp. Compared to the case, it feels as a weak water flow, and a comfortable feeling can be obtained. Further, since air bubbles are mixed in the water flow discharged from the discharge holes 234, there is an advantage that the amount of water per unit time is inevitably reduced and water can be saved. Further, by combining with the flow rate adjusting device 218, there is an advantage that water can be further saved.

Next, Embodiment 3 will be described with reference to FIG.
The third embodiment is an improvement of the bubble mixing shower device 222 in the second embodiment, and the discharge direction of the discharged water discharged from the discharge hole 234 does not change even if the flow rate of the bubble mixed water flowing out from the decompression hole 182 changes. This is an example in which the bubble mixed water guide 236 is arranged as described above. Therefore, the bubble mixed water guide 236 can be changed to another apparatus having the same function. In the following, the same parts as those in the second embodiment are denoted by the same reference numerals, description thereof is omitted, and different configurations will be described.

In the third embodiment, a bubble mixed water guide 236 is disposed in the discharge water guide 232. The bubble mixed water guide 236 is disposed in the discharge water guide 232 and is formed in a generally hemispherical shape. More specifically, a hemispherical hemispherical portion 240 having a radius slightly smaller than the diameter of the protruding water guiding portion is formed on the air / water guiding portion 230 side, and the antispherical portion 240 is followed by the protruding guiding portion 232. A slightly large-diameter guide body large-diameter portion 242 is formed, and a discharge water guide hole 244 having a tapered shape that sequentially expands in the direction of water flow is formed along the fourth axis SL4. In other words, the air / water guide part 230 side of the bubble-containing water guide 236 is formed in a dome shape, and the air / water guide part 230 has a sickle-shaped cross section between the air / water guide part 230 and a dish-shaped holding space as a whole. 248 is formed. Since the volume of the reserved space 248 affects the flow of bubble-mixed water discharged from the air / water discharge plate 224, it is preferable to determine the volume based on the flow specification. For example, when it is desired to increase the flow, it is preferable to reduce the volume of the holding space 248, in other words, to reduce the distance between the antispherical portion 240 and the steam / water guide portion 230. Further, as shown in FIG. 14, it is preferable to set so that the reflected bubble mixed water from the air / water guide section 230 is directed to the inlet opening 245 of the discharge water guide hole 244. In other words, the inlet end face of the discharge water guide hole 244 is arranged so that most of the reflected water from the air / water guide portion 230 proceeds to the discharge water guide hole 244. The discharge water guide holes 244 may have the same diameter. The diameter of the inlet opening 245 is formed larger than the diameter of the fifth hole 148 in order to directly receive much of the reflected bubble mixed water from the steam / water guide section 230. The length of the discharge water guide hole 244 is set to be equal to or larger than the diameter of the discharge water guide hole 244 (minimum diameter in the case of a taper shape). The antispherical portion 240 may be determined depending on the shape of the air / water guide portion 230, and may not necessarily be a dome shape. Since the guide body large-diameter portion 242 is formed to be slightly larger in diameter than the eleventh diameter D11 of the discharge water guide portion 232, the guide body large-diameter portion 242 is pressed into the end portion of the discharge water guide portion 232 and held at a predetermined position by frictional force. Is done. The diameter of the downstream end surface 250 of the bubble-containing water guide 236 increases toward the downstream side. In other words, it is formed in a trumpet shape that expands rapidly toward the air / water discharge plate 224 side.
As shown in FIG. 14, the downstream end face 250 and the air / water discharge plate 224 are arranged close to each other.

Next, the operation of the third embodiment will be described.
A description of the same operation as that of the second embodiment will be omitted, and a different operation will be described.
Most of the bubbling water bounced back after colliding with the steam / water guide section 230 proceeds to the discharge water guide hole 244 and is guided by the discharge water guide hole 244, and then follows the trumpet shape of the downstream end face 250. Accordingly, the air is discharged from the discharge ports 234 in the entire area of the air / water discharge plate 224, but the flow from the discharge ports 234 on the extension of the discharge water guide hole 244 is the strongest. The bubble-mixed water that could not travel to the discharge water guide hole 244 is retained in the storage space 248, but is involved in the bubble-mixed water flow that travels into the discharge water guide hole 244 and travels into the discharge water guide hole 244. It discharges from the discharge hole 234. In the third embodiment, since the bubble mixed water guided to the discharge water guide hole 244 is discharged from the discharge hole 234, even if the angle entering the discharge water guide hole 244 is different, the discharge direction from the discharge hole 234 is Has the same advantage.

Next, a fourth embodiment will be described with reference to FIG.
In the fourth embodiment, the positions of the vent holes 110 (the first vent hole 110A and the second vent hole 110B) in the bubble mixed shower device 222 of the second embodiment are shifted from the outside air introduction hole 166 along the second axis SL2. And the annular groove 184 is abolished. More specifically, the first vent hole 110A and the second vent hole 110B are arranged to be shifted by a predetermined amount below the outside air introduction hole 166, in other words, on the rectifying unit 170 side. This shift amount is set as appropriate. However, if the shift amount is larger than necessary, the bubble mixed shower device 222 becomes longer, which is not preferable. In the fourth embodiment, the first vent hole 110A, the second vent hole 110B, the fine pore 208 of the gas-water liquid stopping body 112, the distribution chamber are generated by the reduced pressure (negative pressure) generated in the pressure reducing portion 104 of the reduced pressure hole 182. 207 and a reduced pressure region connected to the outside air introduction hole 166 is generated, and the distribution chamber 207, the fine pore 208 of the vent liquid stop body 112, the first ventilation hole 110A, and the second ventilation hole 110B are formed from the outside air introduction hole 166. Then, the outside air is sucked into the decompression unit 104. In the fourth embodiment, an annular groove 184 may be provided.

Next, the operation of the fourth embodiment will be described.
A description of the same operation as that of the first embodiment will be omitted, and a different operation will be described.
When pressure water flows through the liquid flow pipe 108, the pressure reducing unit 104 is depressurized as described above, and the first vent hole 110A, the second vent hole 110B, and the vented liquid stopping body 112 are used as a starting point. Since a reduced pressure region connected to the fine pores 208, the distribution chamber 207, and the outside air introduction hole 166 occurs, as a result, the distribution chamber 207, the fine pores 208 of the vent liquid stopper 112, and the first passage through the outside air introduction hole 166 are generated. Outside air is sucked into the decompression unit 104 through the pores 110A and the second ventilation holes 110B. In this suction process, air flowing into the distribution chamber 207 from the outside air introduction hole 168 is distributed in a cylindrical shape so as to surround the outer surface of the vent liquid stopper 112 in the distribution chamber 207 and flows along the vent liquid stopper 112. The air is sucked into the first vent hole 110A or the second vent hole 110B through an appropriate fine pore 208. Therefore, the air sucked into the first vent hole 110A or the second vent hole 110B is generated by the vent liquid stopper 112 existing between the first vent hole 110A or the second vent hole 110B from the outside air introduction hole 168. Since the air is sucked from the cylindrical outer peripheral surface, the suction area increases, and thus dust contained in the intake air is dispersed and attached to the outer peripheral surface. As a result, even when dust in the air is clogged in the fine pores 208 of the ventilating liquid stopping body 112, the inflow of air into the first vent hole 110A or the second vent hole 110B is substantially prevented. Since this has no influence, there is an advantage that the nineteenth object of the present invention can be achieved. In addition, since the flow passage cross-sectional area in the distribution chamber 207 is larger than the flow passage cross-sectional area in the outside air introduction hole 166, the air flow rate is reduced, and the speed at which the mixed dust is sucked into the fine pores 208 is also increased. Slow down. This reduces the biting force when the dust is clogged in the fine pores 208, and the biting force is such that it can be removed by rubbing with a brush. This has the advantage that the clogged dust can be easily removed.
The positional relationship between the vent hole 110 and the outside air introduction port 166 is opposite to the fourth embodiment, and the outside air inlet port 166 can be disposed closer to the rectifying unit 170 than the vent hole 110.
This structure can also be employed in the bubble mixing device in the first embodiment.

104 Pressure reducing part
106 orifice
108 Fluid pipe
110 Vent
112 Ventilator stop
114 Porous material
116 Liquid repellent film
172 Cylindrical body
206 Alumina ceramic
202 powder
204 ceramic
210 Fluorine coating agent
212 Fluorine coating film
216 Flow controller
220 Shower body
224 Air / water discharge plate
230 Air and water guide
234 Discharge port
244 Discharge water guide hole
SL1 axis 1
SL2 second axis

Claims (22)

A bubble mixing device that forms a bubble mixed liquid flow by forming a pressure reducing part (104) by a liquid flow and introducing outside air from the outside air inlet (166) into the pressure reducing part (104),
Between the pressure reducing part (104) and the outside air inlet (166), an aeration liquid stopper (112) is disposed,
The vent liquid stopper (112) is configured by attaching a liquid repellent film (116) to the porous body (114),
Although it is possible for inflow of outside air from the outside air inlet (166) to the pressure reducing part (104) through the porous body (114), the pressure from the pressure reducing part (104) to the outside air inlet (166) A bubble mixing apparatus, wherein the outflow of liquid is prevented by the liquid repellent action of the liquid repellent film (116). A bubble mixing device that forms a bubble mixed liquid flow by forming a pressure reducing part (104) by a liquid flow and introducing outside air from the outside air inlet (166) into the pressure reducing part (104),
Between the pressure reducing part (104) and the outside air inlet (166), an aeration liquid stopper (112) is disposed,
The vent liquid stopper (112) is configured by attaching a liquid repellent film (116) to the porous body (114),
The liquid repellent film (116) is attached to the surface of the peripheral wall constituting the numerous fine pores (208) of the porous body (114),
Although it is possible for inflow of outside air from the outside air introduction port (166) to the decompression unit (104) through the fine pores (208) of the porous body (114), the outside air can be introduced from the decompression unit (104). An air bubble mixing device characterized in that the outflow of liquid to the inlet (166) is prevented by the liquid repellent action of the liquid repellent film (116). A bubble mixing device that forms a bubble mixed liquid flow by forming a pressure reducing part (104) by a liquid flow and introducing outside air from the outside air inlet (166) into the pressure reducing part (104),
A cylindrical rectification unit (170) formed around the axis (SL2) and through which the liquid flows, and coaxial with the axis (SL2) on the downstream side of the rectification unit (170) and the rectification unit (170) Smaller diameter orifice (106), and continuous with the orifice (106), coaxial with the orifice (106), and larger in diameter than the orifice (106). A flow pipe (108),
A vent hole (110) formed in the liquid passage pipe (108) of the pressure reducing section (104) and communicating the inner side and the outer side of the liquid passage pipe (108);
A vent liquid stop (112) disposed inside or outside the vent hole (110),
The aeration liquid stopping body (112) has a liquid repellent film (116) attached to the surface of the peripheral wall constituting the numerous fine pores (208) of the porous body (114),
Although it is possible for inflow of outside air from the outside air introduction port (166) to the decompression unit (104) through the fine pores (208) of the porous body (114), the outside air can be introduced from the decompression unit (104). An air bubble mixing device characterized in that the outflow of liquid to the inlet (166) is prevented by the liquid repellent action of the liquid repellent film (116).   The bubble mixing device according to any one of claims 1 to 3, wherein the porous body (114) is a porous body (114) to which a powder (202) is bonded. The bubble mixing device according to claim 4, wherein the powder (202) is ceramic (204). The bubble mixing device according to claim 5, wherein the ceramic (204) is an alumina ceramic (206). The bubble mixing apparatus according to any one of claims 1 to 6, wherein the liquid repellent film (116) is a fluorine coating film (212). The fluorine coating film (212) is formed by dissolving a fluorine coating agent (210) obtained by dissolving a fluororesin in a nonflammable fluorine solvent or petroleum solvent into a powder (202) constituting the porous body (114). ) And then dried to form,
The bubble mixing apparatus according to claim 7.   The bubble mixing device according to claim 3, further comprising a flow rate adjusting device (216) disposed upstream of the orifice (106) in the liquid flow pipe (108). A bubble mixing shower device that forms a bubble mixed water flow by forming a decompression unit (104) by a water flow and introducing outside air from the outside air inlet (166) into the decompression unit (104),
Between the pressure reducing part (104) and the outside air inlet (166), an aeration liquid stopper (112) is disposed,
The vent liquid stopper (112) is configured by attaching a liquid repellent film (116) to the porous body (114),
Although it is possible for inflow of outside air from the outside air inlet (166) to the pressure reducing part (104) through the porous body (114), the pressure from the pressure reducing part (104) to the outside air inlet (166) The bubble mixed shower device, wherein the outflow of water is blocked by the liquid repellent action of the liquid repellent film (116). A bubble mixing shower device that forms a bubble mixed water flow by forming a decompression unit (104) by a water flow and introducing outside air from the outside air inlet (166) into the decompression unit (104),
Between the pressure reducing part (104) and the outside air inlet (166), an aeration liquid stopper (112) is disposed,
The vent liquid stopper (112) is configured by attaching a liquid repellent film (116) to the porous body (114),
The liquid repellent film (116) is attached to the surface of the peripheral wall constituting the numerous fine pores (208) of the porous body (114),
Although it is possible for inflow of outside air from the outside air inlet (166) to the pressure reducing part (104) through the numerous fine pores (208) of the porous body (114), the pressure reducing part (104) can The bubble mixed shower device, wherein the outflow of water to the outside air introduction port (166) is prevented by the liquid repellent action of the liquid repellent film (116). A bubble mixing shower device that forms a bubble mixed water flow by forming a decompression unit (104) by a water flow and introducing outside air from the outside air inlet (166) into the decompression unit (104),
A cylindrical rectification unit (170) formed around the axis (SL2) and through which the liquid flows, and coaxial with the axis (SL2) on the downstream side of the rectification unit (170) and the rectification unit (170) Smaller diameter orifice (106), and the orifice (106) is continuous with the orifice (106) and is coaxial with the orifice (106), and has a reduced pressure hole (182) larger in diameter than the orifice (106). A flow pipe (108),
A vent hole (110) formed in the liquid passage pipe (108) of the pressure reducing hole (182) and communicating the inside and the outside of the liquid passage pipe (108);
A vent liquid stop (112) disposed inside or outside the vent hole (110),
The aeration liquid stopping body (112) has a liquid repellent film (116) attached to the surface of the peripheral wall constituting the numerous fine pores (208) of the porous body (114),
Although it is possible for inflow of outside air from the outside air introduction port (166) through the fine pores (208) of the porous body (114) to the decompression section (104) in the decompression hole (182), the decompression The bubble mixed shower device, wherein the outflow of water from the section (104) to the outside air inlet (166) is prevented by the liquid repellent action of the liquid repellent film (116). The said aeration liquid stopping body (112) is a cylindrical body (172) covered on the aeration pipe (108) so as to be positioned around the aeration hole (110). Bubble mixing shower device. The bubble-mixed shower device according to claim 13, wherein the cylindrical body (172) is formed of a porous body (114) combined with a powder (202). The bubble mixed shower device according to claim 14, wherein the powder (202) is ceramic (204). The bubble mixed shower device according to claim 15, wherein the ceramic (204) is an alumina ceramic (206). The bubble mixed shower device according to any one of claims 10 to 16, wherein the liquid repellent film (116) is a fluorine coating film (212). The fluorine coating film (212) is formed by adhering a fluorine coating agent prepared by dissolving a fluororesin in a nonflammable fluorine solvent or petroleum solvent to a porous body and then drying. The bubble-mixed shower device according to claim 17,   The bubble mixing shower device according to claim 12, further comprising a flow rate adjusting device (216) disposed upstream of the orifice (106) in the liquid flow pipe (108). A bubble mixing shower device that forms a bubble mixed water flow by forming a decompression unit (104) by a water flow and introducing outside air from the outside air inlet (166) into the decompression unit (104),
An air / water discharge plate (224) having a large number of discharge ports (234) formed at the tip thereof is disposed, and a mounting portion (134) of the liquid flow pipe (108) is formed at the root portion where the inlet opening (138) is formed. The formed cylindrical shower body (220),
Inserted into the shower body (220) from the inlet opening (138) and fixed to the mounting portion (134) of the liquid flow pipe (108), and when the water flows, the pressure reducing portion (104) A liquid flow pipe (108) formed with an orifice (106) for generating;
A vent hole (110) formed in the liquid passage pipe (108) of the pressure reducing section (104) and communicating the inner side and the outer side of the liquid passage pipe (108);
A cylindrical vent liquid stopper (112) fitted outside the liquid pipe (108) in which the vent hole (110) is formed;
The aeration liquid stopping body (112) repels the surface of the peripheral wall constituting a large number of fine pores (208) of the porous body (114) formed in a cylindrical shape by bonding of the powder (202) of the ceramic (204). Liquid film (116) is attached,
Although it is possible for inflow of outside air from the outside air introduction port (166) to the decompression unit (104) through the fine pores (208) of the porous body (114), the outside air can be introduced from the decompression unit (104). The bubble mixed shower device, wherein the outflow of water to the introduction port (166) is prevented by the liquid repellent action of the liquid repellent film (116). In the shower main body (220), the air / water discharge plate (224) is disposed at a position that forms approximately 60 degrees with respect to the axis between the liquid flow pipes (108), and the axis of the liquid flow pipe (108). A steam guide (230) is placed on the extension of (SL1),
Further, a discharge water guide hole for guiding the bubble mixed water guided by the steam / water guide section (230) at a predetermined distance between the steam / water guide section (230) and the steam / water discharge plate (224) ( 244) is provided, The bubble mixed shower apparatus according to claim 20.   The bubble according to claim 21, wherein the discharge water guide hole (244) has an inlet diameter equal to or larger than an outlet diameter of the liquid flow pipe (108) and a length equal to or larger than the inlet diameter. Mixed shower device.

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