CN113842796A

CN113842796A - Micro-bubble water generator, washing machine hose and shower hose

Info

Publication number: CN113842796A
Application number: CN202111233754.8A
Authority: CN
Inventors: 伊藤正志
Original assignee: Guangzhou Fuji Meter Technology Co ltd
Current assignee: Guangzhou Fuji Meter Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-10-22
Publication date: 2021-12-28
Also published as: JP2022190955A; CN215917014U

Abstract

A micro-bubble water generator, washing machine hose, shower hose, the micro-bubble water generator is composed of a water intake structure part arranged at the side of the connection part of the washing machine water supply hose or shower hose and the tap water faucet, and a water supply structure part arranged at the downstream of the water intake structure part, wherein, in the water intake structure part, a circular plate part is embedded in the outer peripheral surface along the water intake structure part, a plurality of notches for supplying tap water to the water supply structure part are formed, in the water supply structure part, tap water flowing out from the plurality of notches of the water intake structure part is received by the conical inner surface, the diameter of the conical inner surface is gradually reduced along the water flow direction, then the water path is a certain cylindrical water path, a 1 st water path is formed, and tap water flowing out from the 1 st water path collides with the collision surface of the cylindrical part vertical to the water flow direction, and a 2 nd water path is formed; the washing machine water supply hose or the shower hose of the present invention has a micro-bubble water generator generating a large amount of nano-bubbles.

Description

Micro-bubble water generator, washing machine hose and shower hose

Technical Field

The invention belongs to the technical field of micro-bubbles, and particularly relates to a washing machine hose and a shower hose, wherein the hose is provided with a micro-bubble water generator which enables tap water to be rich in more micro-bubbles.

Background

The "fine bubbles" in the present application mean both of micro bubbles having a bubble diameter of 1 to 100 micrometers (μm) and nano bubbles having a bubble diameter of 1 to 999 nanometers (nm), and therefore, the fine bubble water in water means bubble water containing a large number of fine bubbles such as micro bubbles and nano bubbles.

The term "tap water" as used herein is mainly public "tap water" operated by tap water utilities such as a tap water service company and a third department entrusted by a tap water office of a local entity and a local entity, and supply water for supplying underground water, river water, spring water, purified water, and the like to enterprises and groups in a specific area, for example, as water for utilities and industries.

Further, it is known that when water rich in fine bubbles is used as water for a washing machine, fine particles of a powdery or liquid detergent (and a bleaching agent) adhere to the surfaces of the fine bubbles in the water and finely penetrate into fiber gaps of laundry, and thus the cleaning power is greatly improved. Further, since the foaming in the washing water is good and the detergent does not form a block, the detergent is rinsed clean at the time of rinsing.

In addition, when water rich in fine bubbles is used as shower water, bubble water having a diameter smaller than that of the human face and skin pores comfortably permeates into the skin surface, and like the above-mentioned washing water, fine particles of solid soap, liquid soap or shampoo adhere to the surface of the fine bubbles in the water and can finely permeate into skin cells and pores, so that the cleansing power is improved, and the soap, soap or shampoo is easily washed and washed, and the feeling of use is substantially improved.

In addition, it was confirmed that when a water washing bowl rich in fine bubbles was used, the effect of controlling water was improved, and oil stains and the like could be washed out. Therefore, the water rich in fine bubbles can be effectively used for various purposes such as drinking, bathing, beauty, health, washing, dish washing and the like.

Further, if the tap water contains a large amount of fine bubbles, it is known that oxygen in the fine bubbles causes bacteria contained in the tap water to die (is particularly effective for anaerobic bacteria), and has an effect of inactivating viruses in the water.

Therefore, as a method for artificially enriching fine bubbles in water, a high-speed shearing method, a pressure crushing method, a cavitation method, and the like are known, and among them, a structure in which air is sucked from the outside or forced injection is often performed by an aspirator method.

As one of such conventional techniques, for example, patent document 1 discloses a microbubble generator that generates microbubbles by generating cavitation in a chamber in a mixed fluid composed of a liquid accelerated by an acceleration method and a gas (bubbles having a diameter of several millimeters) introduced into the chamber by a gas-liquid mixing method.

Patent document 2 discloses a micro-bubble generating device having a 1 st nozzle on a water passage inlet side, which has a cross-sectional area perpendicular to a central axis thereof gradually decreasing from an inlet toward an outlet, a 2 nd nozzle on a water passage outlet side, which has a cross-sectional area perpendicular to a central axis thereof gradually increasing from an inlet toward an outlet, the 1 st nozzle and the 2 nd nozzle being connected to each other through a passage communicating with an outlet of the 1 st nozzle, and a gap or a side chamber opening only in the passage.

The micro-bubble generation device in patent document 2 generates micro-bubbles from dissolved air in water by a cavitation method without sucking air from the outside.

Patent document

Japanese patent application laid-open No. 2007-21343 in patent document 1

Patent document 2 Japanese patent laid-open publication No. 2009-136864

Disclosure of Invention

Problems to be solved by the invention

However, the micro bubble generator of patent document 1 accelerates the water stored in the water tank to mix gas and liquid, and is different from a simple type in which tap water is directly connected, and is large. And the water flow accelerating structure, the cavity structure and the like are needed, the structure is complex, the volume is large, the cost is high, and the water flow accelerating structure is not suitable for the use of common household tap water.

The micro-bubble generating device of patent document 2 is a direct-connection type tap water pipe and is suitable for use in general household tap water, but the micro-bubble generating device can be used in a place where the tap water supply pressure is high because the water flow rapidly expanding in the passage having the side chamber is throttled by the 2 nd nozzle and reduced in pressure, but cannot supply a sufficient amount of water in general household use where the tap water supply pressure is high.

Therefore, the micro-bubble generating device of patent document 2 is relatively complicated because it is necessary to adjust the width dimension in the axial flow direction of the side chamber in the device in accordance with the current state of the tap water supply pressure. Further, in the micro bubble generating device, an adjustment mechanism is required, and the structure of the entire nozzle is complicated.

In view of the problems of the conventional micro bubble generator, it is an object of the present invention to provide a washing machine hose and a shower hose with a micro bubble water generator, which are directly connected to a household tap water pipe without introducing air from the outside, have a simple structure, and effectively generate nano bubbles regardless of variations in water supply pressure of the tap water pipe.

In order to overcome the disadvantages of the prior art, the invention according to the first aspect 1 provides a micro-bubble water generator comprising a water intake structure and a water supply structure,

the water intake structure part has a disc member having a water intake surface perpendicular to the inflow direction of tap water, the disc member being fitted along the inner diameter of the water intake structure part via a gasket,

a plurality of notches for supplying the tap water to the water supply part are formed in the disc member,

the above-mentioned notch is set up in the running water flow direction and the axial direction of the disk component are inclined,

in order to conflict with the flowing direction of tap water, a plurality of grooves are formed on the inner surface of the notch in a direction substantially perpendicular to the inner surface,

the water supply structure part receives tap water flowing out from the plurality of notches of the water taking structure part to the conical inner surface of the water taking structure part, the diameter of the conical inner surface is gradually reduced along the water flow direction,

then, the water path is a certain cylindrical water path to form a 1 st water path.

The tap water flowing out of the 1 st water passage collides with the collision surface of the columnar member perpendicular to the water flow direction, and flows into the gap around the columnar member to form a 2 nd water passage.

In one embodiment, the 2 nd water passage has a surface of the cylindrical member and an inner surface of the cylinder surrounding the cylindrical member formed with thread-cut projections and recesses.

In one embodiment, the slits provided in the water intake structure are inclined with respect to the axial direction of the disk member toward the adjacent slits in the same circumferential direction of the disk member, thereby changing the flow of the tap water, and thus the tap water flowing to the downstream side water supply structure becomes a strong swirling water flow.

Then, the swirling water flow abuts against the vertical direction of the conical inner surface of the water supply structure at a large angle (for example, 60 degrees), and then the diameter of the conical inner surface is gradually reduced, so that the flow velocity and the water pressure are increased again.

Then, the 1 st water passage having a water passage of a fixed cylindrical shape and the tap water flowing out from the 1 st water passage collide against the collision surface of the cylindrical member perpendicular to the water flow direction and flow into the gap around the cylindrical member, and the tap water is crushed and dispersed again by forming the screw-cut irregularities on the surface of the cylindrical member in the 2 nd water passage and the inner surface of the cylindrical body surrounding the cylindrical member, whereby the bubbles contained in the tap water are refined.

In one embodiment, the notch provided in the water intake structure has an inclination angle of 15 to 20 degrees, preferably about 17 degrees, with respect to the axial direction of the disk member.

In one embodiment, the notch provided in the water intake structure portion is formed by a set of side walls in a straight line shape and a bottom wall sandwiched between the side walls, and the groove is formed by connecting a front end of one of the side walls to a front end of the other side wall through the bottom wall.

In one embodiment, the bottom wall is a circular arc having a center depressed toward the center of the disk member.

In one embodiment, the groove is in a mountain shape which inclines and descends from a center tip to the left and the right, and the angle of the mountain is in the range of 40-80 degrees.

In one embodiment, in the water supply structure, the collision surface on which tap water flowing out of the 1 st water passage collides has a flat tip or a conical tip protruding toward the 1 st water passage.

And, under the condition that the front end is in a plane shape, the water flow collides with the plane in front; when the tip is conical, the water flows into the 2 nd water passage without reducing the flow velocity. Therefore, when the supply pressure of the tap water is high, the collision surface of the tap water flowing out of the 1 st water passage in the water supply structure part is optimally flat; when the supply pressure of tap water is low, the collision surface is preferably conical.

In one embodiment, the slightly conical part forming the 1 st water passage constituting the water supply structure portion is preferably designed to be movable back and forth and adjustable with respect to the water flow direction. Whereby a distance suitable for the tap water supply pressure can be set.

In one embodiment, the member having the flush surface forming the 2 nd water passage constituting the water supply structure portion is preferably designed to be movable forward and backward with respect to the outlet side of the 1 st water passage. Whereby a distance suitable for the tap water supply pressure can be set.

In one embodiment, the surface of the cylindrical member in the 2 nd water passage and the outer diameter of the cylinder surrounding the cylindrical member are smaller than the diameter of the outer pipe of the water supply structure. Thus, the micro-bubble water generator is housed in the washing machine hose or the shower hose, and the flow rate of the tap water passing through the internal passage of the micro-bubble water generator is increased.

In one embodiment, the invention of claim 2 provides a water supply hose for a washing machine with a micro-bubble water generator,

the water supply hose of the washing machine is directly connected with a tap, and comprises:

an adapter attachable to the faucet and a detachable joint part,

A micro-bubble water generator connected to the joint part,

A hose connection part connected to the micro-bubble water generator in a downstream direction and connected to the water supply hose part; a concave part into which an annular gasket is embedded is formed around the tap water inlet of the joint part; wherein the micro-bubble water generator is the micro-bubble water generator described in any one of the above embodiments.

In one embodiment, a ball is provided on an inner peripheral wall of the adapter, a through hole into which the ball is fitted is formed on an outer periphery of the joint, and the joint is connected to the tap water faucet by fitting the adapter to the joint so that the ball is fitted into the through hole.

In one embodiment, the invention according to claim 3 provides a shower hose with a microbubble water generator,

a shower hose with a micro-bubble water generator, at least one end of which is detachably connected to a shower head or a faucet through a connection fitting, and which can be attached to a shower device, comprising:

a micro-bubble water generator,

A shower head mounting part provided at one end of the micro-bubble water generator and detachably connected to the water supply port of the shower head,

A water supply plug mounting part arranged at the other end of the micro-bubble water generator and detachably connected with the water supply plug water outlet,

A mounting member having a 1 st connecting part at one end thereof to which the shower head mounting part and the connecting fitting can be arbitrarily connected, and a 2 nd connecting part at the other end thereof to which the hydrant mounting part and the connecting fitting can be arbitrarily connected;

the shower nozzle mounting part and the water supply tap mounting part are respectively provided with internal threads;

the micro-bubble water generator is the micro-bubble water generator according to any one of the above embodiments.

In one embodiment, the shower hose with the micro-bubble water generator can be attached between the shower head and the shower hose by connecting the connection fitting with the 1 st connection part, the hydrant mounting part with the 2 nd connection part, and the shower head mounting part to the water supply port;

the shower head mounting part is connected by the 1 st connecting part, the connection fitting is connected by the 2 nd connecting part, and the shower hose with the micro-bubble water generator can be mounted between the hydrant and the shower hose by connecting the hydrant mounting part to the drain port.

In this way, the water intake structure of the micro-bubble water generator installed in the water supply hose of the washing machine and the shower hose has a plurality of slits formed in the disk member embedded along the inner diameter of the water intake structure so that the water intake surface is perpendicular to the inflow direction of the tap water, the slits being provided so that the flow direction of the tap water is inclined to the axial direction of the disk member, and a plurality of grooves formed in the inner surface of the slits in a substantially perpendicular direction so as to collide with the flow direction of the tap water.

The micro-bubble water generator, the washing machine hose and the shower hose provided by the embodiment of the invention have the following beneficial effects:

1. in the micro-bubble water generator, the tap water supplied by the tap water pressure generates turbulence when passing through the notch, and the tap water discharged from the water intake part is inclined with respect to the inflow direction of the tap water, and the tap water from the water intake structure part is rotated along the inner wall thereof, and advances to the downstream side while increasing the flow velocity, and bubbles in the tap water are further crushed and dissolved in a state where the flow velocity of the tap water is increased, so that micro-bubble water or nano-bubble water can be generated with a simple structure.

2. Therefore, the washing machine water can be generated in the washing machine water supply hose of the present invention, and the washing machine water is characterized in that: the detergent particles adhere to the surface of the large number of fine bubbles generated by the fine bubble water generator and finely penetrate into the fiber gaps of the laundry, so that the cleaning power is greatly improved, the detergent bubbles well in the washing water, and the detergent is rinsed clean during rinsing.

3. Further, in the shower hose of the present invention, bath water can be generated, and the bath water is characterized in that: since a large number of fine bubbles in the bath water are smaller in diameter than the human face and skin pores, the bubble water comfortably permeates the skin surface, and fine particles of soap, liquid soap or shampoo adhere to the surface of the fine bubbles in the water and finely permeate into skin cells and pores, so that the cleansing power is improved, and the soap, soap or shampoo is easily washed and cleansed, and the feeling of use is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a side sectional view of a micro-bubble water generator installed in a water supply hose of the washing machine or a water supply hose of the shower.

FIG. 2(a) is a perspective view of the micro-bubble water generator from the upstream side,

(b) an external appearance oblique view from the downstream side of the micro-bubble water generator is shown.

Fig. 3 is a perspective view of a disk member constituting a water intake structure of the micro-bubble water generator.

Fig. 4(a) is a front view of the water intake structure of the micro-bubble water generator as viewed from the side of the tap water inlet.

(b) The section (a) is a side sectional view of the water intake structure viewed from the right side.

(c) The section (a) is a plan sectional view of the water intake section as viewed from above.

Fig. 5 is a front view of the water intake structure as viewed in the direction of arrow a in fig. 4 (b).

Fig. 6 is a side sectional view of a cutout portion of a disk member of the water intake structure.

FIG. 7(a) is a schematic view for explaining the flow of water in the water supply structure 20 constituting the micro-bubble water generator,

(b) the parts (a) and (c) show the assembly structure of the water supply structure 20.

Fig. 8 is an overall configuration diagram of a water supply hose for a washing machine according to embodiment 2 of the present invention.

Fig. 9 is a side view of the micro-bubble water generator.

Fig. 10 is a sectional view showing a state in which the water supply hose of the washing machine is attached to the faucet through the adapter.

Fig. 11 is a side view of the micro-bubble water generator with a joint part partially shown in cross section.

Fig. 12 is an explanatory view showing that the hose of the washing machine with the function of generating water with fine bubbles is attached to a faucet and a washing machine.

FIG. 13 is a perspective view showing the outer appearance of a water intake plate of a water supply hose for a washing machine, which is provided with an opening adjusting structure having an adjustable opening area at a water intake hole.

Fig. 14 is a structural view of a general household shower facility, which is the shower hose according to the 3 rd embodiment of the present invention.

Fig. 15 is an external view of the shower hose with the microbubble water generator.

Fig. 16 is an explanatory view showing a state in which the shower hose with the micro-bubble water generator of the present invention is attached between the shower head and the shower hose.

Fig. 17 is an explanatory view showing a state in which the shower hose with the micro-bubble water generator according to the present invention is attached between the water faucet and the shower hose.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

First, a microbubble generator provided in a water supply hose of the washing machine or a shower hose of the shower will be described in detail with reference to the accompanying drawings, and then, the water supply hose of the washing machine and the shower hose with the microbubble generator will be described in detail with reference to the accompanying drawings.

The water intake structure 10 has a water intake surface 16, and tap water flows into the water intake structure 10 through the water intake surface 16. A disk member 13 perpendicular to the inflow direction of tap water is provided in the water intake structure 10, and the outer peripheral surface of the disk member 13 is fitted with a gasket 17 so as to prevent water leakage along the inner diameter of the water intake structure.

The disk member 13 is formed with a plurality of slits 11 (4 slit through holes in the example of fig. 3) for allowing tap water from the outside to flow therethrough, and the plurality of slits 11 are provided such that the flow direction of tap water is inclined with respect to the axial direction of the disk member. Further, a plurality of grooves 12 are formed in the inner surface of the notch 11 in a substantially vertical direction so as to collide with the flowing direction of tap water (see fig. 3).

Here, the plurality of slits 11 provided in the disk member 13 of the water intake structure 10 are inclined with respect to the axial direction of the disk member 13 so as to face the adjacent slits 11 in order in the same circumferential direction of the disk member 13.

The notch 11 provided in the water intake structure 10 is formed by a pair of linear side walls and a bottom wall sandwiched between the side walls, and the groove 12 is formed by connecting the front end of one of the side walls to the front end of the other side wall through the bottom wall.

The inclination angle of the notch 11 provided in the water intake structure 10 with respect to the axial direction of the disk member is in the range of 15 degrees to 20 degrees, and varies depending on the water pressure, but is about 17 degrees in the case of the water pressure of tap water supplied to a general household.

Since the slits 11 are inclined with respect to the axial direction of the disk member so as to face the adjacent slits 11 in the same circumferential direction of the disk member 13, the flow of the tap water is changed, and thus the tap water flowing to the water supply structure portion 20 on the downstream side becomes a strong swirling flow.

Further, since a plurality of grooves 12 (see fig. 3) are formed in a substantially vertical direction on the inner surface of the slit 11 so as to collide with the flowing direction of the tap water, bubbles contained in the tap water passing through the slit 11 are crushed.

Then, the swirling water flow passing through the slit 11 after the air bubbles contained in the water are crushed is in contact with the vertical direction of the conical inner surface 22 of the water supply structure portion 20 at a large angle, and then the diameter of the conical inner surface 20 is gradually reduced toward the downstream direction, so that the flow rate and the water pressure of the tap water are increased again.

The tap water passes through the 1 st water passage 30 in which the water passage 29a having a fixed cylindrical shape is formed, and the tap water flowing out of the 1 st water passage 30 collides with the collision surface of the columnar member 25 perpendicular to the water flow direction, and flows into the gap around the columnar member 25.

Here, the surface of the cylindrical member 25 in the 2 nd water passage 31 formed by the gap and the inner surface of the 2 nd water passage surrounding the cylindrical member 25 are formed with the concave-convex surface 29 in a thread cut shape. Therefore, the bubbles in the tap water are crushed again, and the bubbles contained in the tap water are further refined.

In the water supply structure 21, the collision surface 28 of the columnar member 25 on which tap water flowing out from the 1 st water passage 30 collides has a flat shape at the tip or a conical shape protruding from the tip in the water flow direction.

Under the condition that the front end is planar, the water flow collides with the plane in front; when the tip is conical, the water flows into the 2 nd water passage 31 without reducing the flow velocity. Therefore, when the supply pressure of the tap water is high, the collision surface of the tap water flowing out of the 1 st water passage 30 in the water supply structure 20 collides with the surface having the optimum plane shape; when the supply pressure of tap water is low, the collision surface is preferably conical.

Further, the substantially conical member forming the 1 st water passage 30 constituting the water supply structure portion is preferably designed to be movable back and forth in the water flow direction. Whereby a distance suitable for the tap water supply pressure can be set.

The member forming the 2 nd water passage constituting the water supply structure portion and having the flush surface is preferably designed to be movable forward and backward with respect to the outlet side of the 1 st water passage 30. Whereby a distance suitable for the tap water supply pressure can be set.

Further, the outer diameter of the surface of the cylindrical member 25 and the cylindrical body 24 surrounding the cylindrical member 25 in the 2 nd water passage 31 is smaller than the diameter of the outer pipe body of the water supply structure. Thus, the micro-bubble water generator 1 is housed in the washing machine hose or the shower hose, and the flow rate of the tap water passing through the internal passage of the micro-bubble water generator 1 is increased.

In the water supply structure 20, the tap water flowing out from the plurality of notches 11 of the water intake structure 10 is received in the conical inner surface 22, and the diameter of the inner surface of the conical inner surface 22 gradually decreases in the water flow direction, and then the water path thereof forms a fixed cylindrical water path 29a to form a 1 st water path 30, and the tap water flowing out from the 1 st water path 30 collides with the collision surface of the cylindrical member 25 perpendicular to the water flow direction and flows into the gap around the cylindrical member 25 to form a 2 nd water path 31.

Further, the surface of the cylindrical member 25 and the inner surface of the cylindrical body surrounding the cylindrical member 25 in the 2 nd water passage 31 are formed with screw-cut irregularities, and bubbles in the tap water are miniaturized to a micron size or a nanometer size.

As described above, in the water intake structure 10 constituting the micro-bubble water generator, the water intake surface 16 is perpendicular to the inflow direction of the tap water, and in the disk member 13 embedded along the inner diameter of the water intake structure, a plurality of slits 11 are formed in order to supply the tap water to the water supply structure 20, the slits 11 are provided in such a manner that the flow direction of the tap water is inclined to the axial direction of the disk member, and a plurality of grooves 12 are formed in the substantially perpendicular direction of the inner surface of the slits 11 in order to collide with the flow direction of the tap water, so that the tap water supplied from the water intake structure continuously collides with the slits 11 in a state where the water supply speed and the water pressure are increased, and the air in the tap water passes through the water supply surface 33 of the water supply structure 20 in a finely divided state, thereby generating micro-bubble or nano-bubble water.

Fig. 2(a) shows an oblique view of the external appearance from the upstream side of the present micro-bubble water generator, and (b) shows an oblique view of the external appearance from the downstream side of the present micro-bubble water generator.

In fig. 2(a), the tube 21 of the water supply structure of the present micro-bubble water generator 1 is connected to the present washing machine hose or shower hose. An external thread 14 is formed on the outer periphery of the water intake surface 16 side, and the micro-bubble water generator is connected to the washing machine hose or the shower hose. At this time, a female screw for connection is applied to the inner periphery on the water supply surface 33 side.

In fig. 2(b), a 2 nd water passage 31 is formed between the cylindrical member 25 constituting the water supply structure 20 and the cylindrical body 24 surrounding the cylindrical member 25, and the fine bubble water flows out from the 2 nd water passage 31. The surface of the cylindrical member 25 and the outer diameter of the cylinder surrounding the cylindrical member 25 are smaller than the diameter of the outer tube of the water supply structure. Thus, the micro-bubble water generator 1 is housed in the washing machine hose or the shower hose, and the flow rate of the tap water passing through the internal passage of the micro-bubble water generator 1 is increased.

In the water supply structure 20, tap water flowing out from the plurality of notches 11 of the water intake structure 10 is received by the conical inner surface 22, the inner surface diameter of the conical inner surface 22 is gradually reduced along the water flow direction, then the 1 st water passage 30 having a water passage diameter forming a certain cylindrical water passage 29a is formed, tap water flowing out through the 1 st water passage 30 collides with the conical projections 28 of the cylindrical member 25 perpendicular to the water flow direction, and flows into the 2 nd water passage 31 formed in a gap provided around the cylindrical member 25, and micro-bubble or nano-bubble water is generated from the 1 st water passage and the 2 nd water passage through the water supply surface 33.

Fig. 3 is a perspective view showing the outer appearance of the disk member 13 constituting the water intake structure 10, fig. 4(a) is a front view showing the disk member 13 viewed from the water intake structure side of the disk member 13, fig. 4(b) is a side view showing the disk member 13 viewed from the right side shown in fig. 4(a), fig. 4(c) is a plan view showing the disk member 13 viewed from the upper surface of the disk member 13 in fig. 4(a), and fig. 5 is a front view showing the disk member 13 viewed from the direction of arrow a in fig. 4 (b).

Fig. 4 shows a disk member 13 having a certain thickness. Consisting of a part having a diameter (R) of 13.5mm and a thickness (T) of 5 to 10 mm.

Here, a plurality of, for example, 4 slits 11 are formed at equal intervals around the disk member 13.

The notch 11 is formed by a pair of

side walls

11b and 11c and a bottom wall 11a sandwiched between the side walls, and the bottom wall 11a is recessed in an arc shape toward the center of the disk member. The notch 11 is provided so that the direction of flow C of the tap water is inclined to the axial direction W of the disk member. In this case, the angle P of inclination between the tap water flowing direction C of the notch 11 and the axial direction W of the disk member is in the range of 15 degrees to 20 degrees, preferably 17 degrees.

The slits 11 are inclined at approximately 17 degrees toward the adjacent slits 11 in the same circumferential direction of the disk member 13. Therefore, tap water flowing along the axial direction W of the disk member passes through the slits 11, and the water flow is deflected in the direction C as shown in the portions (b) and (C) of fig. 4.

Although this diversion of the water flow is not shown in the drawings, it is also performed in the other two slits 11, and therefore, since the tap water passes through the water intake portion 10 and is deflected leftward with respect to the axial direction W of the disk member at each slit 11, the tap water becomes a water flow that curls counterclockwise with respect to the axial direction W of the disk member and flows into the downstream water supply structure portion 20 side.

In the slit 11, the side walls 11b and 11C and the bottom wall 11a are continuously connected, and a plurality of grooves 12 are formed in a thread-cut shape in a direction substantially perpendicular to the direction C in which tap water flows through the slit 11.

Fig. 6 shows a cut 11 in the disk member 13 as viewed from the side of the water intake part 10, and the groove 12 is formed in a mountain shape which slantingly descends from the center apex to the left and right. The angle Q of the mountain (opening angle of both slopes of the mountain) is, for example, 60 degrees, the pitch between the apexes of the mountain is 1.1mm, and the apex width of the mountain is 0.1 mm.

By providing such grooves 12, since the concave-convex or conical grooves 12 are formed in the inner surface of the notch 11 in the direction in which the tap water collides, turbulence is generated in the tap water flow. Then, the entire flow of water is deflected leftward by 17 degrees as described above and flows out.

The tap water flowing into the micro-bubble water generator 1 is deflected in the axial direction W of the disk member by the slit 11 of the water intake portion at the inlet, and flows into the 1 st water passage 30 formed by the conical inner surface 22 of the water supply structure portion 20 and the fixed cylindrical water passage 29 a.

Since the tap water flowing in the 1 st water passage 30 obliquely contacts the inner wall of the 1 st water passage 30, the tap water hits a surface (a plane or a conical projection surface 28 shown in fig. 1) formed at the head of the cylindrical member 25 in the water supply structure 20 while swirling in a spiral shape, and moves forward to the 2 nd water passage 31.

In the 1 st water passage, the flow passage is gradually narrowed, and in a state where the speed is increased, water collides with a surface (a flat surface or a conical projection surface) formed at the head of the cylindrical member 25 and is diffused before flowing into the 2 nd water passage 31, so that a rapid pressure drop occurs, and countless fine cavitation bubbles are generated in the tap water by a boiling phenomenon. Further, the water flowing into the 2 nd water passage collides with the projections and recesses formed in the

walls

24 and 29 of the 2 nd water passage to generate turbulence, so that air dissolved in the water is separated, and further cavitation bubbles are effectively generated.

The lower limit of the water pressure of ordinary tap water is 1.5kgf/cm2 to 3kgf/cm2(0.15 to 0.3MPa), and air contained in the tap water supplied to ordinary households is changed into water containing fine bubbles by cavitation bubbles only by the water pressure of the tap water. In this case, the desired water pressure is 2.0 to 4.0kgf/cm2(0.2 to 0.39 MPa).

In the above embodiment, the maximum diameter of the 1 st water passage 30 may be larger than the maximum diameter of the 2 nd water passage 31, or may be the same diameter. Further, the pressure of the tap water discharged from the 1 st water passage 30 and the pressure of the tap water diffused and reduced in the 2 nd water passage 31 are adjusted so as to generate appropriate cavitation bubbles.

In the present micro-bubble water generator, since the parts of the substantially conical water channel constituting the 1 st water channel 30 of the water supply structure 10 are adjusted to be movable forward and backward with respect to the water flow direction, a distance suitable for the tap water supply pressure can be set.

Further, the cylindrical member 25 having the protruding surface of the 2 nd water passage 31 in the water supply structure 20 is adjusted to be movable forward and backward with respect to the outlet surface of the 1 st water passage 30, and therefore, a distance suitable for the tap water supply pressure can be set.

Fig. 7(a) is a schematic diagram illustrating the flow of water in the water supply structure 20 constituting the micro-bubble water generator.

As shown in fig. 7(a), tap water supplied from the 1 st water passage side abuts against the inner tapered inner surface 22 forming the 1 st water passage 30 at a predetermined angle, the flow path thereof gradually decreases, flows toward the cylindrical member 25, abuts against the 1 st water passage side surface 28 (conical projection surface in fig. 7 (a)) of the cylindrical member forming the 2 nd water passage 31, is introduced into the cylindrical 2 nd water passage 31, and the flow rate of the tap water increases through the grooves 29 of the uneven surface on the 2 nd water passage surface, whereby bubbles in the tap water are further miniaturized, and micron bubble water or nanometer bubble water can be produced from the washing machine hose and the shower hose on the water supply surface 33 side.

Fig. 7(b) and (C) show the assembly structure of the water supply structure 20, and the cylindrical member 25 is screwed into the inner surface of the screw cutting adjustment structure of the water supply structure 20, so that the assembly can be easily performed.

In this way, in the micro-bubble water generator provided in the water supply hose of the washing machine or the shower hose, when the tap water supplied under the pressure of the tap water passes through the slit, a turbulent flow is generated, and the tap water discharged while being inclined with respect to the axial direction of the disk member advances toward the downstream side while increasing the flow velocity in the water supply structure portion 20, and bubbles in the tap water are further crushed and dissolved in a state where the flow velocity of the tap water is increased, whereby micro-bubble water or nano-bubble water can be generated with a simple structure.

Next, the water supply hose 41 of the washing machine according to embodiment 1 of the present invention with the above-described micro-bubble water generator will be described in detail.

Fig. 8 is a view showing the entire structure of the water supply hose 41 for a washing machine with a micro-bubble water generator. As shown in fig. 8, the washing machine water supply hose 41 with a micro-bubble water generator is composed of a hose 42, a micro-bubble water generator 43 attached to a water intake end of the hose 42, a coupling (joint member) 44 fitted to a water intake side of the micro-bubble water generator 43, and a washing machine connection portion 45 attached to a washing machine side of the washing machine hose 42.

Fig. 9 is a side view of the micro-bubble water generator 43. The micro-bubble water generator 43 is a functional member integrally composed of a joint 46 connected to a tap 55 (fig. 10) and a hose connection portion 48 connected to the hose 42. The fine bubble water generator 43 is coupled to the hose 42, so that the hose 41 can be easily supplied with fine bubble water to the washing machine, as will be apparent from the following description.

Fig. 10 is a sectional view showing a state in which the joint of the micro-bubble water generator 43 is connected to the faucet 55 through the adapter 49 with respect to the washing machine water supply hose.

As shown in fig. 10 and 11, the joint portion 46 is detachably attached to an adapter 49 attached to a faucet 55. When the adapter 49 is connected, the front end of the adapter 49 locks with a projection 46a formed to project around the rear end (downstream) of the joint portion 46. At the tip of the joint 46, 4 radial through holes 46b are provided at equal intervals in the circumferential direction.

The through hole 46b is a receiving portion of the ball 49a fitted into the adaptor 49. These 49a are provided at 4 equal intervals in the inner circumferential direction of the adapter 49, and when the joint 46 is fitted into the adapter 49, the ball 49a is fitted into the through hole 46b, and the joint 46 and the adapter 49 are connected to each other at once. A recess 46c into which an annular gasket is fitted is formed around the tap water inlet of the joint 46.

The adapter 49 is provided with, for example, 2 to 4 screws 51 for fixing to a faucet 55 at an upper end portion, and is fixed to the faucet 55 by being fastened to a side surface of the faucet 55 in a radial direction by a screw introducing member 52. A cylindrical gasket 53 made of rubber or the like is fitted into the adapter 49, and the upper end of the gasket 53 is press-fitted to the tip of the faucet 55 to prevent water leakage. Then, the lower end of the spacer 53 is pressed against the upper end of the joint portion 46 of the micro-bubble water generator 43 fitted into the adapter 49.

The coupling 44 is a bottomed cylindrical member formed of a flexible material, and has a hole portion formed in the bottom portion and having a smaller outer diameter than the projecting portion 46a provided around the joint portion 46, and when the micro-bubble water generator 43 is fitted into the hole portion, the coupling is locked with the projecting portion 46a and covered with the joint portion 46.

On one side of the coupler 44, an integrally formed latch arm 54 extends. A hook 54a is formed at the tip of the lock arm 54, and the engagement with a flange 56 formed on the outer periphery of the adapter 49 makes the connection between the adapter 49 and the joint 46 less likely to fall off. When the micro-bubble water generator 43 is detached from the adapter 49, the lock arm 54 is expanded outward in accordance with the state shown in the drawing to release the lock, the micro-bubble water generator 43 is pulled out from the adapter 49, and the fitting between the through hole 46b of the joint portion 46 and the ball 49a is released.

Fig. 12 is an explanatory view showing that a washing machine hose having a function of generating water with fine bubbles is attached to a tap and a washing machine.

As shown in fig. 12, the washing machine connecting portion 45 is connected to a water supply port 67 of the washing machine 66. The water supply port 67 is formed of a cylindrical body protruding from the bottom surface of the water supply portion recessed from the main body surface of the washing machine 66, and has a male screw 67a formed on the outer periphery thereof. The washing machine connection unit 45 is connected to the washing machine 66 by screwing the internal thread of the inner periphery thereof to the external thread 67a of the water supply port 67 of the washing machine 66.

Fig. 13 is a perspective view showing an external appearance of a water intake plate of the water supply hose 41 of the washing machine, in which an opening adjusting structure for adjusting an opening area is provided at a water intake hole of the water intake plate.

In the water supply hose 41 for the washing machine, fine bubbles can be efficiently generated by cavitation using air contained in tap water supplied to a general household. In the case of direct connection to tap water, the lower limit of the water pressure of tap water is generally 1.5kgf/cm2 to 3kgf/cm2(0.15 to 0.3MPa), and air contained in tap water supplied to general households is converted into tap water containing fine bubbles by cavitation bubbles only by the water pressure of tap water. In this case, the desired water pressure is 2.0 to 4.0kgf/cm2(0.2 to 0.39 MPa).

In addition, in the washing machine water supply hose 41, more fine bubbles can be generated according to the supply pressure and flow rate of the tap water. As shown in fig. 13, the water intake surface 16 (fig. 1) of the water intake structure 10 may be provided with a variable orifice 68 as an opening adjustment mechanism. The variable hole 68 has an iris diaphragm structure, and is configured to be able to change the opening area of the water intake hole 60 of the water intake structure 10. Iris diaphragm structures are well known for the diaphragm of camera lenses and the like.

By providing such a variable hole 68, when the delivery pressure of the tap water is low, the inflow amount of the tap water can be increased by increasing the opening area of the water intake hole 60; when the delivery pressure of the tap water is high, the inflow amount of the tap water can be reduced by reducing the opening area of the water intake hole 60.

Next, the shower hose 70 according to embodiment 2 of the present invention with the above-described micro-bubble water generator will be described in detail.

Fig. 14 is a configuration diagram of a general household shower device, which is a shower hose 70 according to embodiment 2 of the present invention.

Fig. 14 is a perspective view showing an external appearance of a shower tube 70 with a micro-bubble water generator, and a shower head attachment portion 75 detachably connected to a shower head 71 and a water supply faucet attachment portion 74 detachably connected to a water supply faucet 77 are provided at both ends of a shower hose 70 with a micro-bubble water generator. In fig. 14, the shower hose 70 with the micro-bubble water generator may be directly attached to the hydrant 77, and the shower hose 72 may be provided between the hydrant attachment 74 and the hydrant 77.

Fig. 15 is an external view of a hose portion 72 of the shower hose 70 with the microbubble water generator.

In fig. 14 and 15, the shower head attachment portion 75 and the faucet attachment portion 74 are each formed with a female screw, and are capable of being screwed to a cylindrical discharge port and a water supply port, each of which has a male screw formed on the outer periphery thereof. That is, the structure is the same as the connection of the shower hose 70 with the micro-bubble water generator.

The shower hose 70 with the micro-bubble water generator includes a mounting member 76 (fig. 15), and the mounting member 76 has a connection portion 75 at one end thereof, which is connectable to the shower head attachment portion 73.

Fig. 16 is an explanatory view showing an example of a state in which a shower hose 70 with a micro-bubble water generator is attached between a shower head 71 and a shower hose 72.

Fig. 17 shows an example in which the shower hose 70 with the micro-bubble water generator is directly connected to the water supply hydrant 77.

As described above, in the micro-bubble water generator built in the water supply hose of the washing machine or the shower hose, in the water intake structure part provided on the tap water receiving side, tap water supplied under tap water pressure generates turbulence when passing through the notch, and tap water discharged from the water intake part while being inclined with respect to the axial direction of the disk member advances to the downstream side while increasing the flow velocity by rotating the tap water from the water intake structure part on the inner wall thereof, and bubbles in the tap water are further crushed and dissolved in a state where the flow velocity of the tap water is increased, so that micro-bubble water or nano-bubble water can be generated with a simple structure.

In addition, in the water supply pipe of the washing machine according to embodiment 1 of the present invention, since the fine particles of the detergent are attached to the surfaces of the large number of fine bubbles generated by the fine bubble water generator and finely permeate into the fiber gaps of the laundry, the cleaning power is greatly improved, the foaming in the washing water is good, and the detergent can be rinsed clean during rinsing.

In the shower hose according to embodiment 2 of the present invention, since a large number of fine bubbles in the bath water have a smaller diameter than the human face and the skin pores, the bubble water can be comfortably permeated into the skin surface, and fine particles of solid soap, liquid soap, or shampoo are attached to the surface of the fine bubbles in the water and can be finely permeated into the skin cells and the pores, the cleansing power is improved, and the soap, or shampoo can be easily washed, and the feeling of use is substantially improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A micro-bubble water generator is characterized in that the micro-bubble water generator is composed of a water taking structure part and a water supply structure part,

then the water path is a certain cylindrical water path to form a 1 st water path;

2. The microbubble water generator according to claim 1, wherein thread-cut irregularities are formed on the surface of the cylindrical member in the 2 nd water passage and the inner surface of the cylinder surrounding the cylindrical member.

3. The microbubble water generator according to claim 2, wherein the slits provided in the water intake structure are inclined with respect to the axial direction of the disk member toward the adjacent slits in the same circumferential direction of the disk member.

4. The microbubble water generator according to claim 3, wherein an inclination angle of the notch provided in the water intake structure with respect to the axial direction of the disk member is in a range of 15 degrees to 20 degrees.

5. The micro-bubble water generator according to any one of claims 1 to 4, wherein the slit provided in the water-taking structure portion is formed by a set of side walls in a straight line shape and a bottom wall sandwiched between the side walls,

the groove is formed by connecting the front end of one side wall to the front end of the other side wall through the bottom wall.

6. The microbubble water generator according to claim 5, wherein the bottom wall is arc-shaped with its center depressed toward the center of the disk member.

7. The microbubble water generator according to any one of claims 1 to 4 and 6, wherein the groove has a mountain shape that is inclined downward from a center tip to the left and right, and the angle of the mountain shape is in the range of 40 degrees to 80 degrees.

8. The microbubble water generator according to claim 7, wherein a tip of a surface of the flush surface on which tap water flowing out from the 1 st water passage collides in the water supply structure portion is flat.

9. The microbubble water generator according to claim 7, wherein a tip of a surface of the flush surface on which tap water flowing out from the 1 st water channel collides in the water supply structure portion is formed in a conical shape protruding toward the 1 st water channel side.

10. The microbubble water generator according to any one of claims 8 and 9, wherein the substantially conical member forming the 1 st water passage constituting the water supply structure portion is designed to be movable back and forth and adjustable with respect to the water flow direction.

11. The microbubble water generator according to claim 10, wherein a member having a flush surface forming the 2 nd water passage constituting the water supply structure is designed to be adjustable to move forward and backward with respect to an outlet side of the 1 st water passage.

12. The microbubble water generator according to claim 11, wherein the surface of the cylindrical member in the 2 nd water passage and the outer diameter of the cylinder surrounding the cylindrical member are smaller than the outer pipe diameter of the water supply structure portion.

13. A washing machine water supply hose with a micro-bubble water generator is characterized in that,

an adapter attachable to the faucet and a detachable joint part,

A micro-bubble water generator connected to the joint part,

A hose connection part connected to the micro-bubble water generator in a downstream direction and connected to the water supply hose part; a concave part into which an annular gasket is embedded is formed around the tap water inlet of the joint part; wherein the micro-bubble water generator is the micro-bubble water generator according to any one of claims 1 to 12.

14. The water supply hose for washing machine with micro-bubble water generator as claimed in claim 13, wherein the adaptor has a ball formed on its inner peripheral wall, the joint has a through hole formed on its outer periphery for fitting with the ball, and the ball is fitted with the through hole by fitting the adaptor on the joint, so that the joint is connected to the tap water tap.

15. The utility model provides a shower hose with micro-bubble water generator which characterized in that:

a micro-bubble water generator,

A water supply plug mounting member provided at the other end of the micro-bubble water generator and detachably connected to the water supply plug discharge port,

wherein the micro-bubble water generator is the micro-bubble water generator according to any one of claims 1 to 12.

16. The shower hose with a micro-bubble water generator according to claim 15, wherein the connection fitting is connected by the 1 st connection part, the water supply plug mounting part is connected by the 2 nd connection part, and the shower hose with a micro-bubble water generator can be mounted between the shower head and the shower hose by connecting the shower head mounting part to the water supply port;