CN114247573A - Water outlet device - Google Patents

Abstract

The invention provides a water outlet device, which comprises a body, a micro-bubble generator and a surface cover, wherein the body comprises a connecting part and a spraying part, the connecting part can be connected with a water supply pipe, and the spraying part is connected with the connecting part and can spray liquid supplied from the water supply pipe; the micro-bubble generator is connected with the spraying part; the micro-bubble generator is provided with a micro-bubble flow passage, and liquid can flow in the micro-bubble flow passage along a first water flow direction and form micro-bubble water; the surface cover is connected with the spraying part and is provided with a water outlet hole, and the water outlet hole can spray micro-bubble water along a second water flow direction; the second water flow direction is inclined or vertical to the first water flow direction. Under the condition that the length of the micro-bubble flow channel is fixed, compared with the arrangement mode that the first water flow direction is the same as the second water flow direction in the prior art or the related art, the thickness of the water outlet device in the embodiment of the invention along the second water flow direction is reduced, and the spraying part is thinned along the second water flow direction, so that the overall appearance of the product is more attractive and delicate.

Description

Water outlet device

Technical Field

The invention relates to the technical field of water outlet devices in general, and particularly relates to a water outlet device capable of generating micro-bubble water.

Background

In view of the special properties of micro-bubble water, which is not available in general bubble water, it is widely used in various fields. In order to generate micro-bubble water, the length of the micro-bubble generating hole in the related art needs to be long enough, which results in a thick water outlet device with poor aesthetic and delicate appearance.

Disclosure of Invention

According to the water outlet device provided by the invention, the first water flow direction of the micro-bubble flow channel of the micro-bubble generator and the second water flow direction of the water outlet hole of the surface cover are obliquely or vertically arranged, so that the thickness of the spraying part can be designed to be smaller, the thickness is thinned, the product is more attractive, and the user experience is improved on the basis of ensuring the length size requirement of the micro-bubble flow channel.

The water outlet device comprises a body, a micro-bubble generator and a surface cover, wherein the body comprises a connecting part and a spraying part, the connecting part can be connected with a water supply pipe, and the spraying part is connected with the connecting part and can spray liquid supplied from the water supply pipe; the micro-bubble generator is connected to the spraying part; the microbubble generator is provided with microbubble channels, and the liquid can flow in the microbubble channels along a first water flow direction and form microbubble water; the surface cover is connected with the spraying part and is provided with a water outlet hole, and the water outlet hole can spray the micro-bubble water along a second water flow direction; wherein the second water flow direction is oblique or perpendicular to the first water flow direction.

In one embodiment of the present invention, the microbubble generator has a disc shape and defines an axial direction, a radial direction, and a radial plane perpendicular to the axial direction, and the second water flow direction is parallel to the axial direction.

In one embodiment of the present invention, the first water flow direction is parallel to the radial plane and has an included angle with the radial direction.

In one embodiment of the present invention, an acute angle is formed between the first water flow direction and the second water flow direction, and the acute angle is greater than or equal to 45 degrees and smaller than 90 degrees.

In one embodiment of the present invention, the acute angle is greater than or equal to 80 degrees and less than 90 degrees.

In one embodiment of the present invention, an obtuse angle is formed between the first water flow direction and the second water flow direction, and the obtuse angle is greater than 90 degrees and equal to or less than 120 degrees.

In one embodiment of the present invention, the obtuse angle is greater than 90 degrees and equal to or less than 100 degrees.

In one embodiment of the present invention, the face cover includes a cover portion and a side portion, the cover portion has the water outlet, and the side portion is disposed on an outer periphery of the cover portion; the microbubble runner is including intaking end and play water end, the lateral part connect in spraying the portion to the neighbour locates go out the water end, be used for the buffering by go out the microbubble water that the water end flows.

In one embodiment of the present invention, the cover is provided with a plurality of the water outlet holes, and the plurality of the water outlet holes are uniformly arranged on the cover in a radial shape; the cover and the microbubble generator have a gap therebetween, and the microbubble water can flow along the gap and from the outer periphery of the cover to the inner periphery of the cover after being blocked by the side portions.

In one embodiment of the invention, the body further comprises a handle part, one end of the handle part is provided with the connecting part, and the other end of the handle part is provided with the spraying part.

In one embodiment of the present invention, the microbubble flow channel includes a water inlet end and a water outlet end, and the flow path cross-sectional area of the microbubble flow channel gradually increases from the water inlet end to the water outlet end.

In one embodiment of the present invention, along the first water flow direction, the microbubble flow channel sequentially includes a first flow channel and a second flow channel, and a flow path sectional area of the first flow channel is smaller than a flow path sectional area of the second flow channel.

One embodiment of the above invention has the following advantages or benefits:

in the water outlet device according to the embodiment of the present invention, the liquid supplied from the water supply pipe sequentially flows through the connection portion and the spraying portion, and flows into the microbubble channel of the microbubble generator. Micro bubble water is generated in the micro bubble flow passage, and finally the micro bubble water is sprayed out through the water outlet hole of the face cover. The liquid is along the first water flow direction in the process of flowing through the micro-bubble flow channel, when micro-bubble water is sprayed out from the water outlet hole, the micro-bubble water is along the second water flow direction, and the second water flow direction is inclined or vertical to the first water flow direction.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a schematic structural diagram of a perspective view of a water outlet device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another view angle of the water outlet device according to an embodiment of the present invention.

Fig. 3 shows an exploded view of a water outlet device according to an embodiment of the present invention.

Fig. 4 shows a cross-sectional view along section line a-a in fig. 1.

Fig. 5 shows a cross-sectional view along section line B-B in fig. 1.

Fig. 6 is a schematic structural diagram of a microbubble generator according to an embodiment of the present invention.

Fig. 7 shows a cross-sectional view along section line C-C in fig. 6.

Fig. 8 is a cross-sectional view of the water outlet device according to an embodiment of the invention, in which the first water flow direction is perpendicular to the second water flow direction.

Fig. 9 is a cross-sectional view of the water outlet device according to an embodiment of the present invention, wherein an acute angle is formed between the first water flow direction and the second water flow direction.

Fig. 10 is a cross-sectional view of the water outlet device according to an embodiment of the present invention, wherein an obtuse angle is formed between the first water flow direction and the second water flow direction.

Wherein the reference numerals are as follows:

100. body

120. Connecting part

140. Handle part

160. Spraying part

161. Installation space

300. Micro-bubble generator

320. Base body part

321. Gap

340. Projection part

341. Micro-bubble flow channel

3411. First flow channel

3412. Second flow channel

360. Side stop part

500. Face cover

520. Cover part

521. Water outlet

540. Side part

600. Gap

D1, first water flow direction

D2, second water flow direction

P, radial plane

S, radial direction

Q, axial direction

T, thickness

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The inventor of the present invention found in the research that when hot water passes through the microbubble generator, the flow rate of the water flow is accelerated to decelerated. In the process, a low pressure zone is generated, and the solubility of air in water is reduced due to the low pressure of the low pressure zone. Therefore, air is precipitated from the water, and the precipitated air is not rapidly discharged in the water discharge device, so that fine bubbles are formed, and fine bubble water is formed along with the outflow of the water flow.

The inventors of the present invention further found in their research that in order to sufficiently separate air from water to form effective micro bubble water, the length of the micro bubble flow passage of the micro bubble generator needs to be as long as possible so that the water flow can be continued for a sufficiently long time while passing through the micro bubble flow passage. In the device for generating micro-bubble water in the prior art or the related art, because the water flow direction of the water flow passing through the micro-bubble flow channel is the same as the water flow direction of the water finally covering the water, if the size of the micro-bubble flow channel is designed to be longer, the thickness of the device in the water flow direction is thicker, the appearance of a product is affected, and the user experience is poor.

Therefore, how to balance the length of the microbubble channel and the thickness of the product, which are two contradictory dimensions, is a problem to be solved by designers in the field.

Based on this, the embodiment of the present invention provides a water outlet apparatus, and by adopting a technical means that a first water flow direction of a micro-bubble flow channel of a micro-bubble generator and a second water flow direction of a face cover water outlet hole are inclined or vertically arranged, on the basis of ensuring the size requirement of the micro-bubble flow channel, the thickness and the size of a spraying part are designed to be thinner, a product is more beautiful, and user experience is improved.

The water outlet device provided by the embodiment of the invention comprises a body, a micro-bubble generator and a surface cover, wherein the body comprises a connecting part and a spraying part, the connecting part can be connected with a water supply pipe, and the spraying part is connected with the connecting part and can spray liquid supplied from the water supply pipe. The microbubble generator is connected in spraying the portion, and the microbubble generator has the microbubble runner, and liquid can flow along a first rivers direction in the microbubble runner to produce little bubble water. The face cover is connected to the spraying part and is provided with a water outlet hole, and the water outlet hole can spray micro-bubble water along a second water flow direction. Wherein, the second water flow direction is inclined or vertical to the first water flow direction.

In the water outlet device according to the embodiment of the present invention, the liquid supplied from the water supply pipe sequentially flows through the connection portion and the spraying portion, and flows into the microbubble channel of the microbubble generator. Micro bubble water is generated in the micro bubble flow passage, and finally the micro bubble water is sprayed out through the water outlet hole of the face cover. The liquid is along the first water flow direction in the process of flowing through the micro-bubble flow channel, when micro-bubble water is sprayed out from the water outlet hole, the micro-bubble water is along the second water flow direction, and the second water flow direction is inclined or vertical to the first water flow direction.

The following describes the structure, connection relationship and operation principle of each component in the water outlet device according to the embodiment of the present invention in detail with reference to the accompanying drawings.

Fig. 1 to 3 are schematic structural diagrams of a water outlet device according to an embodiment of the present invention, fig. 1 is a schematic structural diagram of another perspective of the water outlet device according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of another perspective of the water outlet device according to an embodiment of the present invention, and fig. 3 is an exploded view of the water outlet device according to an embodiment of the present invention. The water outlet device of the embodiment of the present invention includes a body 100, a micro bubble generator 300, and a cover 500. The microbubble generator 300 is connected to the body 100 and can generate microbubble water. The cover 500 is connected to the body 100 and can spray the micro bubble water.

It should be noted that "connecting" in this document is not limited to a direct connection between the first component and the second component, and may also be: and a third component is arranged between the first component and the second component, and the first component is indirectly connected with the second component through the third component. For example, in the embodiment of the present invention, the microbubble generator 300 is connected to the body 100, and the cover 500 is connected to the body 100, wherein the cover 500 may be directly connected to the body 100, and the cover 500 may also be directly connected to the microbubble generator 300 and indirectly connected to the body 100.

Of course, it is understood that the water outlet device of the present invention may be a shower head for a bathroom, a faucet, a shower head for a kitchen, a shower head for a car wash, or other devices requiring water outlet.

Of course, it is also understood that the liquid supplied from the water supply line may be hot water, liquid medicine, soapy water, or other liquids.

As shown in fig. 1 to 3, the body 100 according to the embodiment of the present invention includes a connecting portion 120, a handle portion 140, and a spraying portion 160, wherein the connecting portion 120 is disposed at one end of the handle portion 140, and the spraying portion 160 is disposed at the other end of the handle portion 140. The connection part 120 can be connected to a water supply pipe, and liquid supplied from the water supply pipe flows through the connection part 120, the handle part 140, and the spraying part 160 in sequence. The spraying part 160 has a mounting space 161, and the mounting space 161 is used for the micro bubble generator 300 to be mounted therein.

As shown in fig. 3, 6 and 7, fig. 6 is a schematic structural view of a microbubble generator 300 according to an embodiment of the present invention, and fig. 7 is a sectional view taken along a section line C-C in fig. 6. The microbubble generator 300 according to the embodiment of the present invention includes a base body 320, a protrusion 340, and a side stopper 360, the base body 320 may have a substantially disk shape, the protrusion 340 is disposed on one side of the base body 320, and the microbubble flow path 341 is disposed on the protrusion 340. The side stops 360 may be provided on the outer periphery of the base portion 320.

Of course, it is understood that the base portion 320 may not be a complete disk shape, for example, the base portion 320 of the present embodiment further has a notch 321, and the notch 321 is used for disposing other components of the water outlet device therein, so as to avoid the interference between the base portion 320 and other components.

It should be understood that the shape of the base body 320 is not limited to a disk shape, and may be other shapes to match the shape of the spraying part 160, which is not listed here.

When the base portion 320 is disc-shaped, the base portion 320 defines an axial direction Q, a radial direction S, and a radial plane P perpendicular to the axial direction Q. Wherein the axial direction Q and the radial direction S are perpendicular to each other.

As shown in fig. 3, the surface cover 500 includes a cover 520 and a side 540, the side 540 is disposed on an outer periphery of the cover 520, the cover 520 has a plurality of outlet holes 521, and the outlet holes 521 can spray micro-bubble water along the second water flow direction D2. The plurality of outlet holes 521 may be uniformly arranged in a radial shape on the cover 520. Since the outer periphery of the cover 520 has a larger diameter than the inner periphery, the number of outlet holes 521 in the outer periphery of the cover 520 is larger than the number of outlet holes 521 in the inner periphery.

When the cover 500 is connected to the spraying portion 160 of the body 100, the side portion 540 can be connected to the spraying portion 160 and is adjacent to a water outlet end of the micro bubble flow channel 341, and the side portion 540 can buffer the micro bubble water flowing out from the water outlet end, so that the micro bubble flow channel 341 can stably generate micro bubbles. In the prior art or the related art, an arrangement mode that the first water flow direction is the same as the second water flow direction is adopted, a baffle plate is often required to be arranged near the water outlet end of the micro-bubble flow channel, and the baffle plate plays a role in buffering micro-bubble water. In the embodiment of the present invention, the micro-bubble water is ejected from the water outlet end and then directly collides with the side 540 of the face cover 500, so as to buffer the micro-bubble water without an additional baffle.

Of course, it is understood that the side baffles 360 of the microbubble generator 300 can also serve to buffer the water flow. The side barrier 360 may play a role of buffering micro bubble water together with the side 540 of the face cover 500, and the side barrier 360 may also play a role of buffering micro bubble water alone.

In an embodiment, the second water flow direction D2 may be parallel to the axial direction Q. When the second water flow direction D2 is parallel to the axial direction Q, as shown in fig. 2, the thickness T of the spraying part 160 is the size of the spraying part 160 along the second water flow direction D2.

As shown in fig. 6 and 7, the number of the protruding portions 340 is two, and the two protruding portions 340 are disposed on the same side of the base portion 320 and are disposed in a central symmetry manner with respect to the center point of the base portion 320. Each of the projections 340 is provided with four micro bubble flow passages 341, and each of the micro bubble flow passages 341 sequentially includes a first flow passage 3411 and a second flow passage 3412 along the first water flow direction D1, wherein the flow passage sectional area of the first flow passage 3411 is smaller than the flow passage sectional area of the second flow passage 3412, so that the inner wall of the micro bubble flow passage 341 is stepped. When the water flow passes through the first flow passage 3411 having a smaller flow path sectional area, the flow velocity of the water flow increases; when the water flows through the second flow passage 3412 having a large flow path sectional area, the flow velocity of the water flow decreases.

As shown in fig. 6, the base portion 320 is substantially disc-shaped and defines an axial direction Q, a radial direction S, and a radial plane P perpendicular to the axial direction Q. The first water flow direction D1 is parallel to the radial plane P, and an included angle β is formed between the first water flow direction D1 and the radial direction S. With such a design, since the extending direction of the micro bubble flow passages 341 (the first water flow direction D1) is not along the radial direction S but is inclined with respect to the radial direction S, the size of the base body 320 in the radial direction S can be reduced as much as possible when the length of the micro bubble flow passages 341 is constant.

In combination with the design that the first water flow direction D1 and the second water flow direction D2 are perpendicular to each other, the first water flow direction D1 is parallel to the radial plane P, and an included angle is formed between the first water flow direction D1 and the radial direction S, on the premise that the length dimension of the microbubble runner 341 is ensured, the dimension of the spraying portion 160 along the axial direction Q and the radial direction S can be reduced as much as possible, and the spraying portion 160 with a smaller overall dimension is finally designed.

Of course, it is understood that the micro bubble flow channels 341 may also be trumpet-shaped. Specifically, the micro bubble flow path 341 has a water inlet end and a water outlet end, and extends along the water inlet end toward the water outlet end, so that the flow path cross-sectional area of the micro bubble flow path 341 gradually increases.

It is to be understood that the number of the micro bubble flow passages 341 is not particularly limited in the present invention, and those skilled in the art may increase or decrease the number of the micro bubble flow passages 341 according to the amount of water discharged.

As shown in fig. 4 and 5, fig. 4 is a sectional view taken along a sectional line a-a of fig. 1, and fig. 5 is a sectional view taken along a sectional line B-B of fig. 1. As shown by the arrows in fig. 4 and 5, the first water flow direction D1 in the micro bubble flow path 341 is from the inner periphery of the micro bubble generator 300 to the outer periphery, that is, the generated micro bubble water reaches the outer periphery of the cover 500 first.

The water flow direction in the water outlet device will be described in detail below by taking the embodiment shown in fig. 8 as an example. Fig. 8 shows a cross-sectional view of the water outlet device according to an embodiment of the invention, in which the first water flow direction D1 is perpendicular to the second water flow direction D2. As shown in fig. 8, the first water flow direction D1 is substantially perpendicular to the second water flow direction D2, and the first water flow direction D1 in the micro bubble flow path 341 flows from the inner periphery to the outer periphery of the micro bubble generator 300 until the flow reaches the vicinity of the outer periphery of the cover 500, and is blocked and buffered by the side 540. Then, a part of the micro bubble water is discharged from the outlet hole 521 provided near the outer periphery of the face cover 500, and the other part of the micro bubble water flows along the gap 600 between the micro bubble generator 300 and the face cover 500 toward the inner periphery of the face cover 500, and is gradually discharged from the outlet hole 521 as the micro bubble water flows inward.

Since the plurality of outlet holes 521 are uniformly arranged on the surface cover 500 in a radial shape, the diameter of the outer periphery of the surface cover 500 is larger than that of the inner periphery, so that the number of the outlet holes 521 near the outer periphery of the surface cover 500 is larger than that of the outlet holes 521 near the inner periphery. Therefore, most of the generated micro-bubble water can be ejected from the outer periphery of the face cap 500 provided with the large number of the outlet holes 521, and a small part of the micro-bubble water can be ejected from the inner periphery of the small number of the outlet holes 521. Compared with the scheme that most of micro-bubble water is concentrated on the inner periphery of the surface cover 500 in the prior art or the related art, the water outlet mode of the embodiment of the invention enables the water outlet of the inner periphery and the outer periphery of the surface cover 500 to be more uniform.

Of course, it is understood that the first water flow direction D1 and the second water flow direction D2 can also be arranged in the manner of the embodiment shown in fig. 9. Fig. 9 is a cross-sectional view of the water outlet device according to an embodiment of the invention, wherein an acute angle is formed between the first water flow direction D1 and the second water flow direction D2. As shown in fig. 9, an acute angle α 1 is formed between the first water flow direction D1 and the second water flow direction D2, and the acute angle may be greater than or equal to 45 degrees and smaller than 90 degrees, and further, the acute angle is greater than or equal to 80 degrees and smaller than 90 degrees, such as 81 degrees, 82 degrees, 83 degrees, 84 degrees, 85 degrees, 86 degrees, 87 degrees, 88 degrees, and 89 degrees.

Of course, it can be understood that, as shown in fig. 10, fig. 10 is a cross-sectional view of the water outlet device according to an embodiment of the present invention, wherein an obtuse angle is formed between the first water flow direction D1 and the second water flow direction D2. The first water flow direction D1 and the second water flow direction D2 form an obtuse angle α 2 therebetween, which may be greater than 90 degrees and equal to or less than 120 degrees, and further, the obtuse angle may be greater than 90 degrees and equal to or less than 100 degrees, such as 91 degrees, 92 degrees, 93 degrees, 94 degrees, 95 degrees, 96 degrees, 97 degrees, 98 degrees, and 99 degrees.

In summary, the water outlet device of the embodiment of the invention has the advantages and beneficial effects that:

in the water discharge apparatus according to the embodiment of the present invention, the liquid supplied from the water supply pipe sequentially flows through the connection part 120 and the spraying part 160, and flows into the micro bubble flow path 341 of the micro bubble generator 300. Micro bubble water is generated in the micro bubble flow passage 341, and finally the micro bubble water is sprayed out through the water outlet hole 521 of the face cover 500. The liquid is along the first water flow direction D1 during the process of flowing through the micro bubble flow channel 341, when the micro bubble water is sprayed from the water outlet hole 521, the liquid is along the second water flow direction D2, and the second water flow direction D2 is inclined or perpendicular to the first water flow direction D1, so that under the condition that the length of the micro bubble flow channel 341 is constant, compared with the arrangement mode in the prior art or the related art in which the first water flow direction is the same as the second water flow direction, the thickness T of the water outlet device in the embodiment of the present invention along the second water flow direction D2 is reduced, and the spraying portion 160 along the second water flow direction D2 is reduced, so that the overall appearance of the product is more beautiful and delicate.

It is to be noted here that the water outlet device shown in the drawings and described in the present specification is only one example employing the principles of the present invention. It will be clearly understood by those skilled in the art that the principles of the present invention are not limited to any of the details or any of the components of the apparatus shown in the drawings or described in the specification.

It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the description. The invention is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications fall within the scope of the present invention. It will be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for carrying out the invention and will enable those skilled in the art to utilize the invention.

Claims (12)

1. A water outlet device, comprising:

the body comprises a connecting part and a spraying part, wherein the connecting part can be connected with a water supply pipe, and the spraying part is connected with the connecting part and can spray liquid supplied from the water supply pipe;

a micro bubble generator connected to the spraying part; the microbubble generator is provided with microbubble channels, and the liquid can flow in the microbubble channels along a first water flow direction and form microbubble water; and

the surface cover is connected with the spraying part and is provided with a water outlet hole, and the water outlet hole can spray the micro-bubble water along a second water flow direction;

wherein the second water flow direction is oblique or perpendicular to the first water flow direction.

2. The water exit device of claim 1, wherein the microbubble generator is disc-shaped and defines an axial direction, a radial direction, and a radial plane perpendicular to the axial direction, and the second water flow direction is parallel to the axial direction.

3. The water output device of claim 2, wherein the first water flow direction is parallel to the radial plane and forms an angle with the radial direction.

4. The water outlet device according to claim 2, wherein the first water flow direction and the second water flow direction have an acute angle therebetween, and the acute angle is greater than or equal to 45 degrees and smaller than 90 degrees.

5. The water output device of claim 4, wherein the acute angle is greater than or equal to 80 degrees and less than 90 degrees.

6. The water outlet device according to claim 2, wherein the first water flow direction and the second water flow direction have an obtuse angle therebetween, and the obtuse angle is greater than 90 degrees and equal to or less than 120 degrees.

7. The water output device of claim 6, wherein the obtuse angle is greater than 90 degrees and less than or equal to 100 degrees.

8. The water outlet device according to claim 1, wherein the surface cover comprises a cover portion and a side portion, the cover portion is provided with the water outlet hole, and the side portion is arranged on the outer periphery of the cover portion;

the microbubble runner is including intaking end and play water end, the lateral part connect in spraying the portion to the neighbour locates go out the water end, be used for the buffering by go out the microbubble water that the water end flows.

9. The water outlet device according to claim 8, wherein the cover is provided with a plurality of water outlet holes, and the plurality of water outlet holes are uniformly arranged on the cover in a radial manner;

the cover and the microbubble generator have a gap therebetween, and the microbubble water can flow along the gap and from the outer periphery of the cover to the inner periphery of the cover after being blocked by the side portions.

10. The water outlet device as claimed in any one of claims 1 to 9, wherein the body further comprises a handle portion, one end of the handle portion is provided with the connecting portion, and the other end of the handle portion is provided with the spraying portion.

11. The water outlet device according to any one of claims 1 to 9, wherein the micro-bubble flow channel comprises a water inlet end and a water outlet end, and a flow path cross-sectional area of the micro-bubble flow channel gradually increases from the water inlet end to the water outlet end.

12. The water discharge device according to any one of claims 1 to 9, wherein along the first water flow direction, the micro bubble flow passage comprises a first flow passage and a second flow passage in this order, and a flow path sectional area of the first flow passage is smaller than a flow path sectional area of the second flow passage.

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