Micro-bubble water generator and structural body thereof

Abstract

The present invention relates to the technical field of water treatment. Provided in the present invention is a structural body of a micro-bubble water generator for micronizing bubbles in tap water to generate micro-bubble water containing a large number of micro-bubbles. The structural body is composed of a water intake surface body which is arranged on an inflow port side of tap water and has branch holes for dividing into a plurality of branches the tap water flowing into the structural body, a water output surface body which is arranged on an outflow port side of the structural body and has branch holes for dividing into a plurality of branches an outflow of micro-bubble water generated inside the structural body, and a hollow cylindrical body which supports the outer peripheral surface of the water intake surface body and the outer peripheral surface of the water output surface body. In the structural body, in order to adapt to the dimensions of inner walls of various water passage pipes of tap water pipes for supplying tap water, a cylindrical body with an appropriate outer diameter, a water intake surface body, and a water output surface body can be selected and are inserted into an inner pipe of a tap water pipe in advance.

Description

Micro bubble water generator and structure thereof Technical Field

[0001] The present invention relates to the field of water treatment technology, and more particularly to a micro-bubble water generator for miniaturizing bubbles in tap water. In particular, the present invention relates to a micro-bubble water generator and its structure that can be widely used in various appliances that use tap water, such as shower heads, wash basins, kitchen sinks, washing machines, and automatic dishwashers, at low cost and with ease. Background Art

[0002] Finely bubbled water is water containing a large number of air bubbles with a diameter of approximately 100μm or less, or nano-sized (approximately 50 to 500nm in diameter). Recently, because bubbles smaller than human pores can penetrate pores and sweat glands, effectively removing dirt, it has also been widely used for various purposes such as bath water and face wash for beauty and health purposes.

[0003] Moreover, this fine-bubble water can prevent the molecules that make up water from clumping together and instead become loose, so the water can finely penetrate the gaps between fibers in clothing and other items, and can come into close contact with the surfaces of dishes and other items. Therefore, it is also widely used in cleaning water such as washing water, dishwashing water, and toilet cleaning water.

[0004] In particular, the cleaning effect brought about by the electrical action of the fine bubbles contained in large quantities in micro-bubble water has also attracted much attention. The surfaces of the fine bubbles contained in micro-bubble water usually have a negative charge, and the bubbles repel each other due to the action of the charge, and have the properties of separating, diffusing, and floating in the water. In contrast, dirt formed by oil, sebum, small foreign matter, etc. usually has a positive charge and is electrically bonded to the negatively charged washings. Therefore, the negatively charged micro-bubbles adsorb the positively charged dirt and are then electrically neutralized, making it easier for the dirt to separate from the washings. Moreover, it is clear that the dirt separated from the washings after being electrically neutralized is adsorbed on the gas-liquid interface of the micro-bubbles and floats to the surface of the water due to the buoyancy of the bubbles. Therefore, the dirt removed from the washings will not re-adhere to the washings in the micro-bubble water and will be washed away.

[0005] Among the methods for producing such fine bubble water rich in fine bubbles, well-known methods include high-speed shearing of tap water, pressure crushing, and cavitation. Most of these methods involve sucking air from the outside through an aspirator or the like and injecting fine bubbles into the tap water. As one of these methods, a micron bubble generating device is known that generates micron bubbles by causing cavitation in a cavity of a mixed fluid consisting of a liquid accelerated by an acceleration method and a gas (bubbles with a diameter of several millimeters) introduced into a cavity by a gas-liquid mixing method. (For example, see Patent Document 1)

[0006] Furthermore, unlike the device described in Patent Document 1, which does not draw in air from the outside, a method of generating micron bubbles by cavitation of relatively large bubbles dissolved in water is also known. Examples of this method of generating microbubbles by cavitation include: a first nozzle on the water inlet side whose cross-sectional area gradually decreases from the inlet to the outlet and intersects perpendicularly with its central axis, and a second nozzle on the water outlet side whose cross-sectional area gradually increases from the inlet to the outlet and intersects perpendicularly with its central axis, a first nozzle and a second nozzle connected by a channel connected to the outlet of the first nozzle, and a micron bubble generating device having only an open gap or a side chamber in the channel. (For example, refer to Patent Document 2)

[0007] Furthermore, it is well known that a micron bubble generator that generates micron bubbles by cavitation using air dissolved in water has an effective application in beauty and health, such as in shower heads. (For example, see Patent Document 3)

[0008] Furthermore, washing machines, scrubbers, sinks, and the like having a function of generating fine bubble water have recently become well known (for example, see Patent Document 4 regarding washing machines), and are currently widely sold.

[0009] However, the technical solutions of existing patents have the following problems:

[0010] The micro bubble generator of Patent Document 1 accelerates the water stored in a water tank to mix gas and liquid, which makes the device large and unsuitable for generating micro bubble water from household tap water.

[0011] The micron bubble generating device of Patent Document 2 has a channel with a side chamber in which the rapidly expanding water flow is throttled by the second nozzle and the pressure is reduced. However, the structure is complex and the cost is high, so it is difficult to install in household bathing equipment, washbasins and other appliances, as well as washing machines, dishwashers and other devices.

[0012] Patent Document 3 describes a household shower head with a built-in microbubble generator (microbubble water generator) installed within a bathroom showerhead. However, incorporating this microbubble generator into the showerhead makes the showerhead relatively larger than a typical showerhead. On the other hand, if the components of this microbubble generator were reduced in size to fit within a standard-sized showerhead, the water flow path within the microbubble generator would become narrower, reducing water pressure and failing to achieve the desired water flow rate.

[0013] The device described in Patent Document 4 incorporates a fine-bubble water generator into the washing machine during its manufacturing phase. It is not a device that retroactively adds a fine-bubble water generating function to existing home shower heads or washing machines.

[0014] On the other hand, there are known examples of separately sold microbubble water generators that consumers purchase and then install on existing pipes or tubes supplying tap water to showerheads or sinks, either by themselves or through a plumbing professional. However, installing a microbubble water generator on a metal pipe or flexible resin pipe, such as one that supplies tap water to a showerhead or sink, requires disconnecting the pipe or the connection between the pipe and the microbubble generator. This process, even for skilled workers, requires considerable time and effort to remove the threads of the pipe and address leaks in order to prevent leaks.

[0015] (Patent Document 1) Japanese Patent Application Laid-Open No. 2007-21343

[0016] (Patent Document 2) Japanese Patent Application Laid-Open No. 2009-136864

[0017] (Patent Document 3) Japanese Patent Application Laid-Open No. 2016-2196

[0018] (Patent Document 4) Japanese Patent Application Laid-Open No. 2022-185360.

[0019] FIG. 13 shows an example of the external appearance (a) and the internal structure (b) of a conventional general micro-bubble water generator.

[0020] As shown in FIG13(b), conventional micro-bubble water generators generate a plurality of micro-bubbles by causing bubbles or dissolved air contained in tap water to collide forcefully with the inner wall that blocks the water flow as the water flow rises. Therefore, their internal structure is complex and their appearance has a concave-convex shape.

[0021] Furthermore, conventional micro-bubble water generators, when installed on a water pipe or a water flow pipe within an appliance, required external threads on one end of the water inlet and outlet of the micro-bubble water generator to prevent leakage when the pipe or water flow pipe was cut. These were then screwed into the internal threads of the water pipe and secured with nuts. This made this installation difficult for the average consumer, forcing them to entrust the installation to a professional water service provider.

[0022] Furthermore, as shown in Figure 13, conventional fine-bubble water generators have a complex internal structure, making them difficult to manufacture at low cost. Furthermore, the increased flow resistance within the generator can hinder the use of the fine-bubble water generator in residential areas located on high ground, in residential buildings far from water supply stations, or in high-rise buildings such as apartment buildings, where the tap water pressure is low. This can reduce the pressure of the water flowing through the fine-bubble water generator, making it unusable. Summary of the Invention

[0023] In order to overcome the shortcomings of the prior art, the present invention provides a structure with a micro-bubble water generator to solve the problems that the micro-bubble water generating device of the prior art occupies a large space and is not suitable for household equipment directly connected to the tap water pipe; it cannot be simply installed on the household tap water pipe; and the micron bubble generator cannot be directly installed on the existing equipment.

[0024] One embodiment of the present invention provides a structure of a micro-bubble water generator, which micro-bubbles contained in tap water to contain a large number of micro-bubbles, and is provided with a water intake surface body provided on the side of the tap water inlet, and has a branch hole for dividing the tap water flowing into the structure into a plurality of branches.

[0025] A water outlet body provided on the outlet side of the structure and having branch holes for dividing the outflow of the fine bubble water generated inside the structure into a plurality of branches,

[0026] A hollow cylindrical body supporting the outer peripheral surface of the water intake surface body and the outer peripheral surface of the water outlet surface body;

[0027] In order to adapt to the inner wall dimensions of various water pipes of the tap water supply pipe, the structure can select a cylinder, a water intake surface body, and a water outlet surface body with appropriate outer diameters and pre-insert them into the inner tube of the tap water pipe.

[0028] In this solution, the structure of the micro-bubble water generator has the following advantages:

[0029] (a) The structure is simple and concise, and contains a large number of microbubbles with a bubble diameter of micro or nano size, which can produce microbubble water at low cost and excellent versatility.

[0030] (b) The cylindrical body, water intake surface, and water outlet surface of the micro-bubble water generator structure can be selected based on the inner wall dimensions of various water pipes supplying tap water, and can be inserted and installed within the water pipes. This allows practitioners to easily and quickly install the micro-bubble water generator (structure).

[0031] In one of the preferred embodiments of the present invention, by making the number of the branch holes in the water intake surface body the same as the number of the branch holes in the water outlet surface body, the water intake surface body or the water outlet surface body can use the same components, which can reduce costs.

[0032] In one preferred embodiment of the present invention, one or more intermediate flow branches are further provided within the cylindrical body, on the water flow path from the water intake surface to the water outlet surface, to divide the water flow into multiple branches. This allows for more and finer microbubbles to be generated in the water.

[0033] In one of the preferred embodiments of the present invention, the branch holes in the water intake surface body, the water outlet surface body or the intermediate water flow branch body are respectively formed in a circular or elliptical shape, and the number of the branch holes in the intermediate water flow branch body is the same as the number of the branch holes in the water intake surface body and the water outlet surface body. Usually, the number of the branch holes in the water intake surface body, the water outlet surface body and the intermediate water flow branch body can be 3 or 4.

[0034] In this solution, the same components can be used not only for the water intake surface or the water intake surface, but also for the intermediate flow branch body. In addition, by making the branch hole shape circular or elliptical, manufacturing costs can be reduced.

[0035] In one of the preferred embodiments of the present invention, when observing the water flow direction from the water intake surface side to the water outlet surface side, the center positions of the water intake surface body, the intermediate water flow branch body and the branch holes of the water outlet branch plate are staggered.

[0036] In this solution, most of the water flowing into the water intake surface body will not flow directly through the structure body, but will collide with the intermediate water flow branch body and the water outlet surface body, thereby generating more and finer micro bubbles contained in the water.

[0037] Here, the inclination of the branch hole of the water intake surface body relative to the axis of the tap water supply pipe and the inclination of the branch hole of the water outlet surface body relative to the axis of the tap water supply pipe may be set to be inclined in opposite directions.

[0038] In one of the preferred embodiments of the present invention, the water intake surface body and the water outlet surface body are formed of a resin material, a stainless steel material or a brass material with a thickness of at least 6 mm, and the central axes of the water intake surface body and the branch holes of the water intake surface body are inclined relative to the axis of the tap water supply pipe in the direction of water flow.

[0039] In this solution, a vortex is formed by the water in the structure, which applies pressure to the air dissolved in the water, and the air in the water forms micro bubbles; moreover, the water flow flowing out of the water outlet surface collides with the inner wall of various water pipes such as the tap water supply pipe in an inclined state, and the water pipe itself also contributes to the generation of micro bubbles together with the structure of the present micro bubble water generator.

[0040] In one of the preferred embodiments of the present invention, the intermediate water flow branch body is formed of a resin material, stainless steel material or brass material with a thickness of at least 6 mm, and the center axis of the branch hole arranged on the water flow body is arranged in an inclined manner relative to the axis of the tap water supply pipe in its flow direction.

[0041] In this embodiment, the fine bubbles in the water are further refined, and more fine bubbles are generated.

[0042] When viewed from the water flow direction from the water intake surface side to the water outlet surface side, the center positions of the water intake surface body, the intermediate water flow branch body, and the branch holes of the water outlet surface body are staggered at a certain angle.

[0043] In one of the preferred embodiments of the present invention, the inclination of the branch hole of the water intake surface body relative to the axis of the tap water supply pipe, and the inclination of the branch hole of the intermediate water flow branch body relative to the axis of the tap water supply pipe can be set to be inclined in opposite directions.

[0044] In this embodiment, the inclination of the branch holes in the water intake surface relative to the axis of the tap water supply pipe, the inclination of the branch holes in one or more intermediate water flow branches, and the inclination of the branch holes in the water outlet surface are successively arranged in opposite directions relative to the direction of water flow. As a result, each time the tap water flowing within the cylindrical body of the structure passes through the water intake surface, one or more intermediate water flow branches, and the water outlet surface, the inclination of each branch hole sequentially changes the direction of rotation of the tap water, causing it to flow in a turbulent state. This turbulent flow within the structure, with the intermediate water flow branches colliding with the water outlet surface, can generate more and finer microbubbles in the water.

[0045] In one of the preferred embodiments of the present invention, a concave-convex surface for generating turbulence is formed on the inner surface of the water intake surface body, the intermediate water flow branch portion and the branch hole of the water outlet surface body, or a plurality of grooves may be formed on the inner surface of the water intake surface body, the intermediate water flow branch portion and the branch hole of the water outlet surface body in the direction of water flow for generating turbulence or in a direction intersecting with the direction of water flow.

[0046] In one preferred embodiment of the present invention, a micro-bubble water generator is provided, comprising a micro-bubble water generator structure and one or more water flow blocking members supported on the inner wall of a cylindrical body of the structure, between the water intake surface and the water outlet surface, between the water intake surface and the intermediate water flow branch, or between the intermediate water flow branch and the water outlet surface, for blocking a portion of the water flow flowing within the cylindrical body. The water flow blocking members block the water flow flowing in the center of the cylindrical body of the structure or the water flow flowing at the edge of the cylindrical body of the structure.

[0047] In this embodiment, since the water flowing into the structure collides with the water flow blocking body in a turbulent state, the fine bubbles contained in the water can be generated in larger numbers and in finer sizes.

[0048] In one of the preferred embodiments of the present invention, the water flow blocking body has a water passing portion arranged at the center; or, the water flow blocking body has a plurality of water passing portions arranged in a ring array.

[0049] The present invention is made in view of the drawbacks of conventional micro-bubble water generators and is intended to achieve the following objectives (a) to (e) in a balanced manner.

[0050] (a) A general-purpose fine bubble water generator structure is provided. The structure can be used in various appliances such as shower heads, wash basins, sinks, washing machines, and automatic dishwashers that use tap water.

[0051] (b) Small, simple and low cost.

[0052] (c) Even if a fine-bubble water generator is installed, the supply water pressure of the fine-bubble water supplied from the fine-bubble water generator should not be reduced as much as possible.

[0053] (d) It has the ability to generate a predetermined number or more of fine bubbles in tap water.

[0054] (e) Users themselves or professionals can easily and quickly install it on the water supply pipes of appliances such as shower heads, toilets, and wash basins, as well as washing machines and scrubbers, etc., at home. In other words, the installation cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0056] FIG1 shows the first example of the micro-bubble water generator structure according to the present invention, and shows the state in which it is installed in a tap water supply pipe; wherein A1 is the cut joint of the tap water supply pipe, A2 is the tap water supply pipe, and A3 is the tap water supply pipe joint material.

[0057] FIG. 2 shows a second example of the structure of the micro-bubble water generator according to the present invention (one intermediate water flow branch).

[0058] FIG3 shows a third example of the structure of the micro-bubble water generator according to the present invention (one intermediate water flow branch).

[0059] FIG. 4 shows an example in which a water flow blocking body is provided in the first example of the micro-bubble water generator structure according to the present invention.

[0060] FIG. 5 shows an example in which a water flow blocking body is provided in the third example of the micro-bubble water generator structure according to the present invention.

[0061] FIG. 6 shows an example in which two water flow blocking bodies are provided in the third example of the micro-bubble water generator structure according to the present invention.

[0062] Figure 7 shows the positions of the branch holes (circular branch holes) observed from the water flow direction of the water intake surface body, the water outlet surface body and the intermediate water flow branch body constituting the structure of the micro-bubble water generator related to the present invention. (a) shows an example in which three branch holes are arranged vertically in the water flow direction, and (b) shows an example in which four branch holes are arranged vertically in the water flow direction.

[0063] Figure 8 shows the positions of branch holes (circular branch holes) observed from the flow direction of the water intake surface, water outlet surface and intermediate water flow branch body constituting the structure of the micro-bubble water generator related to the present invention, (a) shows an example in which three branch holes are set obliquely in the water flow direction, and (b) shows an example in which four branch holes are set obliquely in the water flow direction.

[0064] FIG9 shows examples of branch holes of shapes other than circular when observed from the water flow direction of the water intake surface, water outlet surface, and intermediate water flow branch body constituting the structure of the micro-bubble water generator related to the present invention. (a) shows an example of 3 elliptical branch holes, (b) shows an example of 4 elliptical branch holes, (c) shows an example of 3 triangular branch holes, and (d) shows an example of 4 triangular branch holes. In addition, the branch holes of various shapes shown in FIG9 are also perpendicular to the water flow as shown in FIG7 ; or inclined relative to the water flow direction as shown in FIG8 . (a) shows an example of 3 branch holes arranged perpendicular to the water flow direction, and (b) shows an example of 4 branch holes arranged perpendicular to the water flow direction.

[0065] Figure 10 is a second example of the micro-bubble water generator structure related to the present invention shown in Figure 2, corresponding to claims 6 and 7, (a) shows an example of the relative configuration of the water intake surface body, the intermediate water flow branch body and the branch holes on the water outlet surface body observed from the water flow direction, and (b) shows the configuration of the branch holes on the water intake surface body, the intermediate water flow branch body and the water outlet surface body observed from the water flow direction.

[0066] FIG. 11 shows an example of concave and convex portions for generating turbulent flow on the inner surface (water flow surface) of the water intake surface, the water outlet surface, and the branch hole on the intermediate water flow branch.

[0067] FIG12 shows examples of intermediate water flow branches, where (a) shows an example of water flowing in the edge of a cylindrical structure being blocked, and (b) shows an example of water flowing in the center of a cylindrical structure being blocked.

[0068] FIG. 13 shows an example of the appearance (a) and the internal structure (b) of a conventional general micro-bubble water generator.

[0069] The symbols in the accompanying drawings are explained as follows:

[0070] 100. A structure of a micro-bubble water generator;

[0071] 10. Cylindrical body;

[0072] 11. Take water bodies;

[0073] 12. Out-of-water body;

[0074] 13, 13-1, 13-2, intermediate flow branches;

[0075] 14, 14-1, 14-2, water flow blocking body;

[0076] 15, 15-1, 15-2, 15-3, 15-4, branching foramen (vertical / circular);

[0077] 16, 16-1, 16-2, 16-3, 16-4, branching foramen (oblique direction / circular);

[0078] 17, 17-1, 17-2, 17-3, 17-4, branching foramen (ellipse);

[0079] 18, 18-1, 18-2, 18-3, 18-4, branching foramen (triangular);

[0080] 20. Example of the concave-convex pattern (row shape) applied to the water flow surface of a circular branch hole;

[0081] 21. Example of the concave-convex (protruding mountain shape) applied to the water flow surface of a circular branch hole;

[0082] 23. Example of the concave and convex (row groove shape) applied to the water flow surface of a triangular branch hole. DETAILED DESCRIPTION

[0083] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0084] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0085] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0086] FIG1 shows a first example of a basic structure of a micro-bubble water generator structure 100 according to the present invention.

[0087] As shown in FIG1 , the structure 100 of the fine bubble water generator related to the present application (hereinafter referred to as “this structure”) is composed of a circular water intake surface 11, a water inlet 12, a water outlet 13, a water outlet 14, a water outlet 15, a water outlet 16, a water outlet 17, and a water outlet 18.

[0088] The circular water outlet body 12 is provided on the outlet side of the structure 100 and has branch holes 15, 16, 17, and 18 for branching the outflow of the fine bubble water generated inside the structure 100 into multiple branches.

[0089] The hollow cylindrical body 10 supports the outer peripheral surface of the water intake surface body 11 and the outer peripheral surface of the water outlet surface body 12.

[0090] Here, in order to adapt to the inner wall dimensions of various water pipes of the tap water supply pipe (hereinafter referred to as "tap water pipe") that supplies tap water, this structure 100 uses a cylindrical body 10 with a suitable outer diameter, and a water intake surface body 11 and a water outlet surface body 12 that fit the inner circumference of the cylindrical body 10, and is seamlessly inserted into the tap water pipe.

[0091] As described above, since the present structure 100 is adapted to the inner wall size of a water pipe, the water pipe can be simply cut and inserted into the water guide surface of the cut water pipe. Then, the cut surfaces at both ends of the cut water pipe can be integrated, and adhesives such as waterproof tape can be used to match the integrated surfaces.

[0092] Therefore, the user or the practitioner can easily and quickly install the structure 100 on the water supply pipes of appliances such as shower heads, toilets, and wash basins used at home, as well as washing machines and washing machines. When the structure 100 is inserted into the water pipe, it is fixed using adhesive or the like.

[0093] However, since the diameter of the tap water pipe is fixed at 20mm, 25mm, 32mm, 40mm, etc., a cylindrical body 10 suitable for the size, a water intake surface body 11 suitable for the inner diameter of the cylindrical body, a water outlet surface body 12, and an intermediate water flow branch body 13 and a water flow blocking body 14 described later are prepared in advance.

[0094] In the present structure 100, the tap water that violently flows in from the water intake surface body 11 having a plurality of branch holes becomes turbulent between the water intake surface body 11 and the water outlet surface body 12, collides with the inner wall of the cylindrical body 10, and then flows out from the plurality of branch holes applied to the water outlet surface body 12. By colliding with the inner peripheral surface of the tap water pipe, the bubbly air or dissolved air in the tap water will be effectively micro-bubbled.

[0095] At this time, in the present structure 100, for example, compared with the previous micro-bubble generators shown in Patent Document 2, Patent Document 3 or the present application [Figure 13], the resistance to the water flow into the generator is relatively small, so the water pressure of the tap water supplied from the tap water pipe will not be greatly reduced, and the micro-bubble water comes out from the water outlet surface 12. The water that comes out is combined with the action of the inner wall of the tap water pipe to effectively generate a large number of small-sized micro-bubbles.

[0096] FIG. 2 shows an example of the present structure 100 .

[0097] Compared to the first example of this structure 100 shown in FIG1 , the difference lies in the placement of an intermediate water flow branching body 13 between the water intake surface 11 and the water outlet surface 12 within the cylindrical body 10. In most cases, the intermediate water flow branching body 13 can have the same shape as the water intake surface 11 and the water outlet surface 12, or a different shape can be used. However, the outer diameter of the intermediate water flow branching body 13 is the same as the outer diameter of the water intake surface 11 and the water outlet surface 12.

[0098] In the example of the present structure 100 shown in Figure 2, the tap water flowing in from the multiple branch holes 15 applied to the water intake surface body 11 collides with the intermediate water flow branch body 13, forming a vortex state between the water intake surface body 11 and the intermediate water flow branch body 13. The water in the vortex state collides with the wall of the water outlet surface body 12, forming a vortex state between the intermediate water flow branch body 13 and the water outlet surface body 12, and flows out from the multiple branch holes 15 of the water outlet surface body 12 into the tap water pipe.

[0099] FIG3 shows another embodiment of the microbubble water generator structure 100 according to the present invention. Compared with the second example shown in FIG2 , two intermediate water flow branches 13 - 1 and 13 - 2 are arranged between the water intake surface 11 and the water outlet surface 12 in the cylindrical body 10 .

[0100] Here, the first intermediate water flow branch body 13-1 is usually the same as the second intermediate water flow branch body 13-2, but different specifications can be used. However, the outer diameter of the intermediate water flow branch body 13-2 is the same as the outer diameters of the intermediate water flow branch body 13-1, the water intake surface body 11, and the water outlet surface body 12.

[0101] In the example of the present structure 100 shown in FIG3 , between the water intake surface body 11 and the first intermediate water flow branch body 13-1, between the first intermediate water flow branch body 13-1 and the second intermediate water flow branch body 13-2, and between the second intermediate water flow branch body 13-2 and the water outlet surface body 12, tap water invades between the intermediate water flow branch bodies 13-1, 13-2 and the water outlet surface body 12 and forms a vortex state, and finally flows out from the multiple branch holes 15 of the water outlet surface body 12 into the tap water pipe, thereby generating more micro-bubble water than the example shown in FIG2 , and accordingly, the water pressure of the micro-bubble water coming out of the water outlet surface body 12 is reduced.

[0102] FIG. 4 shows an example in which a water flow blocking body is provided in place of the intermediate water flow branching body 13 in the example of the fine bubble water generator structure 100 shown in FIG. 2 .

[0103] Here, the water flow blocking body 14 is shown in Figure 12(a) or 12(b). The first example of the water flow blocking body is shown in Figure 12(a), and the water flow blocking body 14 has a water-passing portion arranged at the center; it only flows in the central part of the cylindrical body 10 of the present structure 100 and blocks the edge of the cylindrical body 10.

[0104] Furthermore, a second example of a water flow obstruction body, as shown in FIG12(b), blocks the central portion of the cylindrical body 10 of the present structure 100. The water flow obstruction body has multiple water passages arranged in a circular array, allowing water to pass through the edge of the cylindrical body 10. This creates turbulent flow of tap water between the water intake surface 11 and the water flow obstruction body 14, and between the water flow obstruction body 14 and the water outlet surface 12. While the amount of fine bubble water produced is lower than that of the present structure 100 example shown in FIG2, the fine bubble water production capacity is improved compared to the present structure 100 example shown in FIG1. ​​Furthermore, in the present structure 100 example shown in FIG4, the fine bubble water supply pressure from the water outlet surface 12 is lower than that of the present structure 100 example shown in FIG1, but the fine bubble water supply pressure from the water outlet surface 12 is superior to that of the present structure 100 example shown in FIG2.

[0105] FIG5 shows an example in which a water flow blocking body is provided between two intermediate water flow branching bodies 13-1 and 13-2 in the example of the present structure 100 shown in FIG3.

[0106] In the example shown in FIG5 , a larger amount of fine bubble water can be produced compared to the present structure 100 according to the example of FIG3 . However, in the example of the present structure 100 shown in FIG5 , the supply water pressure of the fine bubble water from the water outlet surface 12 is slightly lower than that of the present structure 100 shown in FIG3 . Therefore, it can be used in locations where the supply pressure of tap water is relatively high.

[0107] FIG6 shows an example of the present structure 100 shown in FIG3 , in which water flow blocking bodies 14-1 and 14-2 are respectively provided between the water intake surface body 11 and the intermediate water flow branch body 13-1, and between the intermediate water flow branch body 13-2 and the water outlet surface body 12. Water flow blocking bodies 14-1 and 14-2 may be of the same type as shown in FIG12(a) and FIG12(b) , or may be of different types.

[0108] In the example shown in FIG6 , a larger amount of fine bubble water can be produced compared to the example of the present structure 100 according to the example shown in FIG5 . However, in the example of the present structure 100 shown in FIG6 , the supply water pressure of the fine bubble water from the water outlet surface 12 is slightly lower than that of the example of the present structure 100 shown in FIG5 , so it can be used in locations where the supply pressure of tap water is high.

[0109] FIG7 shows examples of the shapes of the water intake surface 11, water outlet surface 12, and branch holes 15 provided in the intermediate flow branch body 13, which constitute the fine bubble water generator structure 100 according to the present invention. (a) shows an example in which three circular branch holes 15 are provided perpendicularly in the direction of water flow, and (b) shows an example in which four circular branch holes 15 are provided perpendicularly in the direction of water flow. Thus, in this structure 100, tap water is divided into multiple streams by the multiple branch holes 15-1, 15-2, 15-3, or 15-4. However, the tap water collides with areas of the water outlet surface 12 and the intermediate flow branch body 13 where branch holes 15 are not provided, causing the water flowing through this structure 100 to become turbulent, generating a pressure difference at various points in the water flow, and efficiently generating a large amount of fine bubble water.

[0110] Figure 8 is the same as the example of the present structure 100 shown in Figure 7, showing the position of the circular branch hole 16 observed from the flow direction of the water intake surface body 11, the water outlet surface body 12 and the intermediate water flow branch part 13-1, but is different from the example of the present structure 100 shown in Figure 7. (a) shows three examples of circular branch holes 16-1, 16-2, and 16-3 being arranged obliquely in the water flow direction, and (b) shows four examples of circular branch holes 16-1, 16-2, 16-3, and 16-4 being arranged obliquely in the water flow direction.

[0111] In the example of the present structure 100 shown in Figure 8, since the branch hole is inclined in the direction of water flow, compared with the present structure 100 shown in Figure 7, the water flow between the water intake surface body 11 and the intermediate water flow branch body 13, the water flow between the intermediate water flow branch body 13 and the water outlet surface body 12, and especially the water flow out of the water outlet surface body 12 becomes a twisted state to generate a vortex and flow out, compared with the present structure 100 in which the branch hole 15 is formed as shown in Figure 7, more and finer micro-bubble water can be generated.

[0112] Figure 9 shows examples of branch holes with shapes other than circular, as viewed from the direction of water flow in the water intake surface, water outlet surface, and intermediate water flow branch body of the micro-bubble water generator structure 100 according to the present invention. (a) shows an example of three elliptical branch holes, (b) shows an example of four elliptical branch holes, (c) shows an example of three triangular branch holes, and (d) shows an example of four triangular branch holes. Furthermore, the branch holes of each shape shown in Figure 9 can also be arranged perpendicular to the water flow, as shown in Figure 7, or inclined relative to the water flow direction, as shown in Figure 8.

[0113] Figure 10 shows an example of the present structure 100 shown in [Figure 2] of the present application, (a) shows an example of the relative configuration of the water intake surface body, the intermediate water flow branch body and the branch holes on the water outlet surface body observed from the water flow direction, and (b) shows the configuration of the water intake surface body, the intermediate water flow branch body and the above-mentioned branch holes on the water outlet surface body observed from the water flow direction.

[0114] In this way, when observing the water flow direction from the water intake surface 11 side to the water outlet surface 12 side, the center positions of the branch holes in the water intake surface body 11, the water outlet surface body 12 and the intermediate water flow branch body 13 are staggered at a certain angle. Therefore, most of the water flowing out of each branch hole will not pass through the branch holes, but will collide with the walls of the branch holes of the intermediate water flow branch body 13 and the water outlet surface body 12 that are not provided with the bifurcation holes 15, thereby more fine bubble water can be generated more effectively.

[0115] FIG11 shows an example of concavities and convexities for generating turbulent flow on the inner surfaces (water flow surfaces) of the branch holes provided on the water intake surface body, the water outlet surface body, and the intermediate water flow branch body.

[0116] Figure 11(a) shows an example of a circular branch hole 15 having triangular-shaped concavities and convexities formed on its surface. Figure 11(b) shows an example of a circular branch hole 15 having corrugated concavities and convexities formed on its surface. Figure 11(c) shows an example of a triangular-shaped branch hole 18 having triangular-shaped concavities and convexities formed on its surface. By forming concavities and convexities along the direction of water flow or perpendicular to the direction of water flow, a larger amount of fine-bubble water can be produced.

[0117] In addition, the water intake surface body 11 and the water outlet surface body 12 can be formed of a resin material, a stainless steel material, or a brass material with a thickness of at least 6 mm.

[0118] 8 , the inclination of the branch holes 16 on the water intake surface 11 relative to the axis of the water supply pipe and the inclination of the branch holes 16 on the water outlet surface 12 relative to the axis of the water supply pipe can be set to be in opposite directions. This will cause the water flowing in the present structure 100 to be in a highly turbulent state.

[0119] In this way, the intermediate water flow branch body 13 is formed of a resin material with a thickness of at least 6 mm, similarly to the water intake surface body 11 and the water outlet surface body 12. The branch holes provided on the intermediate water flow branch body 13 are arranged in a manner such that the central axis thereof is inclined relative to the axis of the tap water supply pipe in the direction of the water flow. When the direction of the water flow from the water intake surface 11 to the water outlet surface 12 is observed, the center positions of the branch holes in the water intake surface body 11, the intermediate water flow branch body 13 and the water outlet surface body 12 are staggered at a certain angle. By aligning the branch holes 15 on the water intake surface body 11 with the branch holes 15 on the water intake surface body 11, the branch holes 15 on the water outlet surface body 12 are staggered at a certain angle. Regarding the inclination of the axis of the tap water supply pipe, and the branch hole 15 on the intermediate water flow branch body 13 is set to be inclined in the opposite direction relative to the inclination of the axis of the tap water supply pipe, the tap water flowing in the cylindrical body 10 of the present structure 100, whenever it passes through the water intake surface body 11, one or more intermediate water flow branch bodies 13 and the water outlet surface body 12, the flow of the tap water changes its rotation direction in sequence through the inclination of each branch hole, and becomes a turbulent state, generating a large turbulence in the present structure 100, which can generate a large number of fine bubbles extremely efficiently.

[0120] In summary, the basic structure of the present structure 100 comprises a circular water intake surface 11, located on the tap water inlet side, having a plurality of branching holes 15, 16, 17, and 18 for branching the tap water flowing into the structure 100; a circular water outlet surface 12, located on the outlet side of the structure 100, having a plurality of branching holes 15, 16, 17, and 18 for branching the outflow of the fine-bubble water generated within the structure 100; and a hollow cylindrical body 10 supporting the outer circumference of the water intake surface 11 and the outer circumference of the water outlet surface 12 ( FIG. 1 ). Based on this basic structure, various variations, as shown in the examples of FIG. 2 to FIG. 6 , can be developed depending on the application, the pressure of the tap water supplied, and the properties of the required fine-bubble water.

[0121] Moreover, in order to adapt to various inner wall sizes of water pipes, the structure 100 can select a cylinder 10 with a suitable outer diameter, and a water intake surface 11 and a water outlet surface 12 that fit the inner circumference of the cylinder 10, and pre-insert them into the inner tube of the water pipe.

[0122] Therefore, practitioners can easily install the present structure 100 on the water supply pipes of appliances such as shower heads, toilets, wash basins, and washing machines and scrubbers currently in use at home in a short time.

[0123] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A structure of a micro-bubble water generator, which micro-bubbles contained in tap water are micro-micro-bubbles, characterized in that: A water intake surface body is provided at one side of the inlet of tap water and has branch holes for dividing the tap water flowing into the structure into a plurality of branches; A water outlet body provided on the outlet side of the structure and having branch holes for dividing the outflow of the fine bubble water generated inside the structure into a plurality of branches, A hollow cylindrical body supporting the outer peripheral surface of the water intake surface body and the outer peripheral surface of the water outlet surface body; Among them, the structure is used to fit the inner wall size of a water pipe or various water pipes that supply tap water. The cylindrical body, the water intake surface body, and the water outlet surface body with suitable outer diameters are selected and pre-inserted into the water pipe.

2. The structure of the micro-bubble water generator according to claim 1, characterized in that: The number of the branch holes on the water intake surface body is the same as the number of the branch holes on the water outlet surface body.

3. The structure of the micro-bubble water generator according to claim 1, characterized in that: Inside the cylindrical body, the water flow path from the water intake surface body side to the water outlet surface body side is further provided with one or more intermediate water flow branch bodies for dividing the water flow into multiple branches.

4. The structure of the micro-bubble water generator according to claim 3, characterized in that: The outer diameter of the intermediate water flow branch body is the same as the outer diameters of the water intake surface body and the water outlet surface body.

5. The structure of the micro-bubble water generator according to claim 3, characterized in that: The branch holes on the water intake surface body, the water outlet surface body or the intermediate water flow branch body are respectively circular or elliptical.

6. The structure of the micro-bubble water generator according to claim 3, characterized in that: The branch holes on the water intake surface body, the water outlet surface body or the intermediate water flow branch body are triangular in shape.

7. The structure of the micro-bubble water generator according to claim 5, characterized in that: The number of the branch holes on the intermediate water flow branch body is the same as the number of the branch holes on the water intake surface body and the water outlet surface body.

8. The structure of the micro-bubble water generator according to claim 5, characterized in that: The number of the branch holes on the water intake surface body, the water outlet surface body and the intermediate water flow branch body is 3 or 4.

9. The structure of the micro-bubble water generator according to claim 5, characterized in that: When observing the water flow direction from the water intake surface side to the water outlet surface side, the center positions of the branch holes on the water intake surface body, the water outlet surface body and the intermediate water flow branch body are staggered at a certain angle.

10. The structure of the micro-bubble water generator according to claim 9, characterized in that: The inclination of the branch hole on the water intake surface body relative to the axis of the tap water supply pipe and the inclination of the branch hole on the water outlet surface body relative to the axis of the tap water supply pipe are set to be inclined in opposite directions.

11. The structure of the micro-bubble water generator according to claim 5, characterized in that: The water intake surface body and the water outlet surface body are formed of a resin material with a thickness of at least 6 mm, and the water intake surface body and the branch holes on the water intake surface body are arranged so that the central axis is inclined relative to the axis of the tap water supply pipe in the water flow direction.

12. The structure of the micro-bubble water generator according to claim 11, characterized in that: The intermediate water flow branch body is formed of a resin material having a thickness of at least 6 mm, and the branch holes provided on the intermediate water flow branch body are provided in such a manner that the central axis thereof is inclined relative to the axis of the tap water supply pipe in the water flow direction thereof; When observing the water flow direction from the water intake surface side to the water outlet surface side, the center positions of the water intake surface body, the intermediate water flow branch body and each branch hole on the water outlet surface body are staggered at a certain angle.

13. The structure of the micro-bubble water generator according to claim 12, wherein: The inclination of the branch hole on the water intake surface body relative to the axis of the tap water supply pipe and the inclination of the branch hole on the intermediate water flow branch body relative to the axis of the tap water supply pipe are set to be inclined in opposite directions.

14. The structure of the micro-bubble water generator according to claim 13, wherein: The inclination of the branch hole arranged on the water intake surface body relative to the axis of the tap water supply pipe, the inclination of the branch hole arranged on one or more of the intermediate water flow branch bodies, and the inclination of the branch hole arranged on the water outlet surface body are successively inclined in the opposite direction in the water flow direction, so that each time the tap water flowing in the cylindrical body of the structure passes through the water intake surface body, one or more of the intermediate water flow branch bodies and the water outlet surface body, the flow of the tap water changes its rotation direction in sequence through the inclination of each branch hole and flows in a turbulent state.

15. The structure of the micro-bubble water generator according to claim 5, characterized in that: The water intake surface body and the water outlet surface body are formed of stainless steel or brass material with a thickness of at least 6 mm. The water intake surface body and the branch holes on the water intake surface body are arranged so that the central axis is inclined relative to the axis of the tap water supply pipe in the direction of water flow.

16. The structure of the micro-bubble water generator according to claim 15, characterized in that: The intermediate water flow branch body is formed of a stainless steel material or a brass material with a thickness of at least 6 mm, and the branch holes arranged on the intermediate water flow branch body are arranged in a manner that the central axis is inclined relative to the axis of the tap water supply pipe in the water flow direction; When observing the water flow direction from the water intake surface side to the water outlet surface side, the center positions of the water intake surface body, the intermediate water flow branch body and each branch hole on the water outlet surface body are staggered at a certain angle.

17. The structure of the micro-bubble water generator according to any one of claims 11 to 16, characterized in that: Concave and convex surfaces for generating turbulent flow are formed on the inner surfaces of the water intake surface body, the intermediate water flow branch body and the branch hole of the water outlet surface body.

18. The structure of the micro-bubble water generator according to claim 17, wherein: On the inner surfaces of the water intake surface body, the intermediate water flow branch body and the branch hole of the water outlet surface body, a plurality of grooves are formed in the water flow direction or in the direction intersecting the water flow direction in order to generate turbulence; And / or, the inner surfaces of the water intake surface body, the intermediate water flow branch body and the water outlet surface body are provided with pleated or delta-shaped concave-convex surfaces for generating turbulent flow.

19. A micro-bubble water generator, characterized in that: The invention is composed of a structure of a micro-bubble water generator as claimed in any one of claims 1 to 18, and one or more water flow blocking bodies supported on the inner wall of a cylindrical body of the structure, between the water intake surface body and the water outlet surface body, between the water intake surface body and the intermediate water flow branch body, or between the intermediate water flow branch body and the water outlet surface body, for blocking a part of the water flow flowing in the cylindrical body; The water flow blocking body blocks the water flow flowing in the central part of the cylindrical body of the structure, or the water flow blocking body blocks the water flow flowing in the edge part of the cylindrical body of the structure.

20. The micro-bubble water generator according to claim 19, characterized in that The water flow blocking body has a water passing portion arranged at the center; Alternatively, the water flow blocking body has a plurality of water passing portions arranged in a circular array.

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