CN211756104U - Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle - Google Patents

Abstract

The utility model relates to a shower nozzle technical field specifically provides a microbubble shower nozzle and have scrubbing equipment of this microbubble shower nozzle, aims at solving current microbubble generator part large in quantity, processing and the assembly degree of difficulty big, the higher problem of manufacturing and use cost. The microbubble shower nozzle is including the component of intaking and the component of going out water that connect each other, is formed with first shrink passageway in the component of intaking, has formed second shrink passageway and expansion channel in proper order along rivers direction in the component of going out water, and the import size of second shrink passageway is greater than the export size of first shrink passageway, and the component of intaking forms inlet channel with the junction of the component of going out water, and inlet channel intercommunication second shrink passageway and external environment. The microbubble shower nozzle includes into water component and play water component two parts, and the component of intaking is connected each other with play water component, forms inlet channel at the junction for the part of microbubble shower nozzle is small in quantity, and simple structure need not to process inlet channel alone, and it is convenient to make, makes and use cost hangs down.

Description

Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle

Technical Field

The utility model relates to a shower nozzle technical field specifically provides a microbubble shower nozzle and have scrubbing equipment of this microbubble shower nozzle.

Background

The micro-bubble water is mixed with a large amount of micro-bubbles in micron and nanometer level, has good sterilization and decontamination performance and is widely applied to washing equipment such as washing machines and the like. Wherein, the micro bubbles refer to bubbles with diameters in the range of micron-sized or less.

To facilitate the formation of micro-bubble water, patent (CN107583480A) discloses a micro-bubble generator comprising a water inlet tube 10, a pressure increasing tube 20, a bubble generating tube 20, an air inlet passage 40, a cutting mesh 50, and a housing 60. Wherein, the water inlet pipe 10, the pressure increasing pipe 20 and the bubble generating pipe 30 are sequentially communicated, the air inlet channel 40 is opened on the bubble generating pipe 30 and is communicated with the inside of the bubble generating pipe 30, the cutting net 50 is arranged on the bubble generating pipe 30, and the shell 60 is coated on the outer surfaces of the pressure increasing pipe 20, the bubble generating pipe 30 and the cutting net 50 and is connected with the water inlet pipe 10. An air inlet 61 is reserved on the shell 60 corresponding to the air inlet channel 40. When water flows through the pressurizing pipe 20 from the water inlet pipe 10, the flow rate is increased, the accelerated water flows into the bubble generating pipe 30, negative pressure is generated in the bubble generating pipe 30, air is sucked in through the air inlet channel 40 and is mixed with the water flow to generate large bubbles, and the large bubbles are cut into micro bubbles through the cutting net 50.

However, the micro-bubble generator has a large number of parts, and the parts need high matching precision, and are difficult to process and assemble. In addition, the air inlet passage 40 is opened on the bubble generation pipe 30, and since the cross-sectional size of the air inlet passage 40 is small, the air inlet passage 40 with a small cross-sectional size is processed on the surface of the cylinder, so that the requirement on the accuracy of processing equipment is high, and the processing difficulty is large. The microbubble generator has the advantages of high difficulty in part processing and manufacturing, high part quantity, complex and complicated assembly procedures, high assembly precision requirement and high manufacturing and using cost correspondingly.

Accordingly, there is a need in the art for a new solution to the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, for solve the current microbubble generator part quantity many, processing and the assembly degree of difficulty big, the higher problem of manufacturing and use cost, the utility model provides a microbubble shower nozzle, the microbubble shower nozzle is including the component of intaking and the component of going out that connect each other, it is formed with first shrink passageway to intake the component, it contracts passageway and expansion channel to form the second in proper order along the rivers direction in the component to go out, the import size of second shrink passageway is greater than the export size of first shrink passageway is so that form negative pressure zone at the second shrink passageway, intake the component with the junction of going out the water component forms inlet channel, inlet channel intercommunication second shrink passageway and external environment.

In a preferable embodiment of the microbubble nozzle, the water inlet member and the water outlet member are connected by a screw thread so as to form the air inlet passage while being connected.

In the above-mentioned preferred technical scheme of microbubble shower nozzle, the position that the component of intaking is close to its downstream end is formed with the tubular structure, the inner wall of tubular structure is formed with the internal thread, the component of intaking is formed with on the outer wall of the position that is close to its upstream end with internal thread accordant connection's external screw thread, inlet channel is formed in the internal thread with between the external screw thread.

In a preferable embodiment of the microbubble showerhead, an outlet size of the first constricted passage is smaller than an outlet size of the second constricted passage.

In a preferred embodiment of the microbubble nozzle, the first constricted passage includes a plurality of sections of first tapered passages connected in sequence; and/or the second contraction channel comprises a plurality of sections of second conical channels which are connected in sequence; and/or the expanding channel comprises a plurality of sections of third conical channels which are connected in sequence.

In a preferable embodiment of the microbubble nozzle, a first constant-diameter passage is further formed in the water inlet member, and the first constant-diameter passage is located between adjacent first tapered passages.

In a preferred embodiment of the microbubble nozzle, a second equal-diameter channel is further formed in the water outlet member, and the second equal-diameter channel is located between the second contraction channel and the expansion channel.

In a preferred embodiment of the micro bubble spray head, the water outlet member has a bubble structure formed at a position near a downstream end thereof.

The technical scheme of the utility model can understand, in the utility model discloses an among the technical scheme, the microbubble shower nozzle includes the member of intaking and the member of going out that connect each other, be formed with first shrink passageway in the member of intaking, it has second shrink passageway and expansion channel to follow the rivers direction in proper order to form in the member of going out, the import size of second shrink passageway is greater than the export size of first shrink passageway so that form negative pressure zone at second shrink passageway, the member of intaking forms inlet channel with the junction of the member of going out, inlet channel intercommunication second shrink passageway and external environment.

The velocity of flow increases behind the rivers that get into the component of intaking through first shrink passageway, and the rivers after the acceleration rate flow through the second shrink passageway in the water storage part, and the import size of second shrink passageway is greater than the export size of first shrink passageway, and the water flow cross-section area is grow suddenly, and the negative pressure is produced here, and outside air mixes with rivers in being inhaled the second shrink passageway through inlet channel, forms a large amount of bubbles in rivers. The water flow with a large number of bubbles flows in the second contraction channel, the flow speed of the water flow in the second contraction channel is gradually increased, and the bubbles in the water flow are extruded and broken into a plurality of small bubbles. The rivers after accelerating get into the expansion channel and flow, because the sectional area crescent, form the torrent when the rivers in the expansion channel flow, the bubble in the rivers is cut into littleer bubble to form a large amount of microbubbles in rivers. Through the utility model discloses a microbubble shower nozzle has made things convenient for the formation of microbubble water, has guaranteed the quantity, the degree of consistency of microbubble. The utility model discloses a microbubble shower nozzle includes into water component and play water component two parts, and the component of intaking is connected each other with play water component, forms inlet channel in the junction, and such form that sets up makes microbubble shower nozzle part small in quantity, and simple structure need not to process inlet channel alone, and it is convenient to make, and it is lower to make and use cost.

Preferably, the water inlet member and the water outlet member are connected by screw threads so as to form the air inlet passage while being connected. Through such setting, the component of intaking assembles convenient and fast more with the component of going out water.

Furthermore, the utility model also provides a washing equipment, this washing equipment includes above-mentioned arbitrary microbubble shower nozzle. It should be noted that, the washing apparatus has all the technical effects of the micro-bubble spraying head, and the details are not repeated herein. In addition, in the washing operation process of the washing equipment, the washing equipment can wash articles by utilizing micro-bubble water with a large amount of micro-bubbles under the action of the micro-bubble spray head, so that the washing effect of the articles is improved, and the use experience of a user is optimized.

In the preferable technical scheme of the washing equipment, the washing equipment is a drum washing machine, a pulsator washing machine or a shoe washing machine.

Drawings

The preferred embodiments of the present invention will be described with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a pulsator washing machine according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a micro-bubble nozzle in a pulsator washing machine according to an embodiment of the present invention;

fig. 3 is a top view of a micro bubble nozzle in a pulsator washing machine according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view taken along plane a-a in fig. 3.

List of reference numerals:

11. a box body; 12. a tray seat; 13. an upper cover; 14. ground feet; 21. an outer tub; 22. an outer barrel cover; 31. an inner barrel; 32. an impeller; 33. a drive shaft; 34. a motor; 35. a balance ring; 41. draining pump; 42. a drain pipe; 51. a water inlet valve; 52. a water inlet pipe; 6. a micro bubble spray head; 61. a water intake member; 611. a water inlet channel; 6121. a first tapered passage A; 6122. a first tapered passage B; 6123. a first tapered channel C; 613. a first constant diameter channel; 614. a tubular structure; 615. a mounting structure; 62. a water outlet member; 621. a second tapered channel; 6221. a third tapered passage A; 6222. a third tapered passage B; 623. a second equal-diameter channel; 624. a water outlet channel; 625. a network structure; 63. an intake passage.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present invention is described with reference to a pulsator washing machine, the skilled in the art can adjust the washing machine as required to adapt to specific applications, such as a drum washing machine, a shoe washing machine, etc. Obviously, the technical solution after adjustment still falls into the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to solve present microbubble generator part quantity many, the processing is big with the assembly degree of difficulty, the higher problem of manufacturing and use cost, the utility model provides a microbubble shower nozzle, the microbubble shower nozzle includes inlet member and the play water component that connects each other, be formed with first shrink passageway in the inlet member, be formed with second shrink passageway and expansion channel in proper order along the rivers direction in the play water component, the import size of second shrink passageway is greater than the exit dimension of first shrink passageway, inlet member forms inlet channel with the junction of play water component, inlet channel intercommunication second shrink passageway and external environment. The micro-bubble spray head comprises a water inlet component and a water outlet component, wherein the water inlet component and the water outlet component are connected with each other, and an air inlet channel is formed at the connection position. The utility model discloses a little microbubble shower nozzle part is small in quantity, and simple structure need not to process inlet channel alone, and it is convenient to make, and it is lower to make and use cost. Additionally, the utility model also provides a washing equipment, this washing equipment includes foretell microbubble shower nozzle. The micro-bubble spray head can provide micro-bubble water containing a large number of micro-bubbles for the washing equipment to wash clothes, and the washing effect is improved.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a pulsator washing machine according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a micro-bubble nozzle in a pulsator washing machine according to an embodiment of the present invention; fig. 3 is a top view of a micro bubble nozzle in a pulsator washing machine according to an embodiment of the present invention; fig. 4 is a schematic cross-sectional view taken along plane a-a in fig. 3.

As shown in fig. 1, the pulsator washing machine (hereinafter, referred to as washing machine) includes a cabinet 11, a tray 12 is disposed at an upper portion of the cabinet 11, an upper cover 13 is pivotally connected to the tray 12, and a bottom 14 is disposed at a bottom of the cabinet 11. An outer tub 21 as a water tub is provided in the cabinet 11, and an outer tub cover 22 is pivotally connected to an upper portion of the outer tub 21. An inner barrel 31 is arranged in the outer barrel 21, the bottom of the inner barrel 31 is provided with a wave wheel 32, the lower part of the outer barrel 21 is fixed with a motor 34, and the motor 34 is in driving connection with the wave wheel 32 through a transmission shaft 33. The drain pump 41 is provided on the drain pipe 42, and an upstream end of the drain pipe 42 communicates with a bottom of the outer tub 21. A water inlet valve 51 is arranged in the tray seat 12, the water inlet valve 51 is connected with the upstream end of a water inlet pipe 52, the downstream end of the water inlet pipe 52 is connected with a micro-bubble spray head 6, and the micro-bubble spray head 6 is fixed on the tray seat 12 and is aligned with the upper opening of the inner barrel 31.

As shown in fig. 2 to 4, the microbubble nozzle includes a water inlet member 61 and a water outlet member 62, a first contraction channel is formed in the water inlet member 61, a second contraction channel and an expansion channel are sequentially formed in the water outlet member 62 along a water flow direction, an inlet size of the second contraction channel is larger than an outlet size of the first contraction channel, an air inlet channel 63 is formed at a connection position of the water inlet member 61 and the water outlet member 62, and the air inlet channel 63 communicates the second contraction channel with an external environment.

Specifically, the first converging channel comprises a first tapered channel a6121, a first tapered channel B6122, a first tapered channel C6123 and a first equal-diameter channel 613, and the first tapered channel a6121, the first equal-diameter channel 613, the first tapered channel B6122 and the first tapered channel C6123 are connected in sequence along the water flow direction in the water inlet member 61. The second contraction channel comprises a second taper channel 621, the expansion channel comprises a third taper channel A6221 and a third taper channel B6222, a second equal-diameter channel 623 is formed between the second contraction channel and the expansion channel, and the second taper channel 621, the second equal-diameter channel 623, the third taper channel A6221, the third taper channel B6222 and the water outlet channel 624 are sequentially connected in the water flow direction in the water outlet component 62. Wherein the inlet size of the second tapered passage 621 is larger than the outlet size of the first tapered passage C6123. The water inlet member 61 is formed with a cylindrical structure 614 at a position near the right end (downstream end), an internal thread is formed on the inner wall of the cylindrical structure 614, and the water outlet member 62 is formed with an external thread at a position near the left end (upstream end), the internal thread and the external thread being in mating connection, and a gap between the internal thread and the external thread forming the air intake passage 63. Two mounting structures 615 are integrally formed on two sides of the cylindrical structure 614, and bolt holes are formed in the mounting structures 615. The microbubble head 6 is fixed to the disk base 12 by bolts through bolt holes in the mounting structure 615. Preferably, the water discharge member 62 is formed with a bubble structure, such as a net structure 625, at a position near the right end (downstream end).

When it is necessary to supply bubble water into the outer tub 21, the water inlet valve 51 is opened, and water flows through the micro bubble spraying heads 6 from the water inlet pipe 52 and is sprayed into the inner tub 31. Specifically, the water flow in the water inlet pipe 52 flows in from the left end of the water inlet channel 611, and then flows through the first tapered channel a6121, the first constant diameter channel 613, the first tapered channel B6122 and the first tapered channel C6123 in sequence. In the process of the water flow flowing through the first conical passage A6121, the flow cross section area is gradually reduced, and the water flow speed is increased. The water flow after the first acceleration flows through the first equal-diameter passage 613, is rectified in the first equal-diameter passage 613, flows through the first tapered passage B6122 after rectification, is accelerated for the second time in the first tapered passage B6122, and then flows into the first tapered passage C6123 and is accelerated for the third time in the first tapered passage C6123. The water flow accelerated three times flows into the second tapered passage 621, negative pressure is generated in the second tapered passage 621 due to the sudden increase of the flow area, and outside air is sucked into the second tapered passage 621 through the air inlet passage 63 and mixed with water to form a large amount of bubbles in the water flow. As the cross-sectional area of the second tapered passage 621 is gradually reduced, the water flow mixed with a large amount of bubbles is further accelerated, and the bubbles in the water flow are crushed into small bubbles in the process. The water flow accelerated in the second conical channel 621 flows through the second equal-diameter channel 623, is rectified in the second equal-diameter channel 623 and then sequentially flows through the third conical channel A6221 and the third conical channel B6222, and due to the fact that the sectional area is gradually increased, the water flow forms turbulent flow, and bubbles in the water flow are cut into smaller bubbles, and therefore a large number of micro-bubbles are formed in the water flow. The water flow containing micro-bubbles then passes through the mesh structure 625 via the water outlet passage 624, and the bubbles in the water flow are further cut into smaller bubbles by the mesh structure 625.

Through the arrangement, the water in the water inlet pipe 52 passes through the micro-bubble spray head 6 to form micro-bubble water and then is sprayed into the inner barrel 31, and the micro-bubble water enters the outer barrel 21 through a large number of small holes on the barrel wall of the inner barrel 31. In the process of washing clothes by the washing machine, the motor 34 drives the thumb wheel 32 to rotate through the transmission shaft 33, the micro-bubble water in the inner barrel 31 and the clothes rotate along with the micro-bubble water, a large amount of micro-bubbles and stains on the clothes are in friction collision, and the micro-bubbles are burst to release a large amount of energy, so that stubborn stains on the clothes are separated from clothes fibers, and the washing effect is improved. The large amount of micro bubbles in the washing water can promote the dissolution of the detergent, improve the use efficiency of the detergent and avoid the need of putting excessive detergent into the washing water to form a set detergent concentration. The micro-bubble spray head comprises a water inlet component and a water outlet component, wherein the water inlet component and the water outlet component are connected with each other, and an air inlet channel is formed at the connection position. The utility model discloses a little microbubble shower nozzle part is small in quantity, and simple structure need not to process inlet channel alone, and it is convenient to make, and it is lower to make and use cost. The water inlet component 61 and the water outlet component 62 are connected through a threaded structure, and the assembly is more convenient and faster.

It is understood by those skilled in the art that the washing apparatus is a pulsator washing machine, and those skilled in the art can adjust the washing apparatus as needed to suit specific applications, such as a drum washing machine, a shoe washing machine, etc. The arrangement mode of the first converging channel comprising the first tapered channel a6121, the first tapered channel B6122, the first tapered channel C6123 and the first equal-diameter channel 613, and the first tapered channel a6121, the first equal-diameter channel 613, the first tapered channel B6122 and the first tapered channel C6123 are connected in sequence along the water flow direction in the water inlet member 61 is only a specific embodiment, and a person skilled in the art can adjust the arrangement mode as required to adapt to specific application occasions, for example, the first equal-diameter channel 613 may also be arranged between the first tapered channel B6122 and the first tapered channel C6123, or equal-diameter channels may also be arranged between the first tapered channel a6121 and the first tapered channel B6122 and between the first tapered channel B6122 and the first tapered channel C6123, and the first converging channel may not comprise equal-diameter channels. Also, the number of tapered channels included in the first constricted channel is not limited to 3, e.g., the number of tapered channels may be 1, 2, 4, etc. Likewise, the second converging channel is not limited to only including 1 second tapered channel 621, as the second converging channel may include 2, 3, or more tapered channels. The "expanding channel comprising the third tapered channel A6221 and the third tapered channel B6222" is also a specific embodiment, and can be adjusted as needed by those skilled in the art to suit a particular application, e.g., the expanding channel comprises 1, 3 or more tapered channels. The second equal-diameter channel 623 may not be provided between the second tapered channel 621 and the third tapered channel a6221, i.e., the second tapered channel 621 and the third tapered channel a6221 are directly connected.

It will also be understood by those skilled in the art that the first constricting channel, the second constricting channel and the expanding channel each comprising a tapered channel is merely a specific embodiment and may be adapted by those skilled in the art as required to suit a particular application, e.g. the first constricting channel, the second constricting channel may each comprise at least one tapered channel of progressively decreasing cross-sectional area or other suitable structure, the expanding channel may comprise at least one tapered channel of progressively increasing cross-sectional area or other suitable structure, etc. In addition, the microbubble generator head is mounted on the disk seat 12 by means of bolts only as a specific embodiment, and those skilled in the art can adjust the microbubble generator head as required to adapt to specific application occasions, such as being mounted on the disk seat 12 by means of clamping, welding, etc.

With further reference to FIG. 4, preferably the exit dimension of the first tapered passage C6123 is smaller than the exit dimension of the second tapered passage 621, i.e. the minimum cross-sectional area of the first converging passage is smaller than the minimum cross-sectional area of the second converging passage. By such an arrangement, the resistance to water flow through the second constricted passage is correspondingly reduced, reducing energy losses.

In an alternative embodiment, the outlet member 62 is formed with a cylindrical structure near the upstream end, an internal thread is formed on the inner wall of the cylindrical structure, and the inlet member 61 is formed with an external thread on the outer wall near the downstream end, the external thread and the internal thread being in mating connection to achieve connection of the inlet member 61 and the outlet member 62, and an air inlet passage is formed between the internal thread and the external thread.

In another possible embodiment, instead of using a threaded connection, for example, the downstream end of the water inlet member 61 abuts against the upstream end of the water outlet member 62, the downstream end of the water inlet member 61 and the upstream end of the water outlet member 62 are connected by intermittent welding, and the gap between the downstream end of the water inlet member 61 and the upstream end of the water outlet member 62 at the position where the downstream end of the water inlet member 61 and the upstream end of the water outlet member 62 are not welded forms an air inlet channel.

It can be seen from the above description that the technical scheme of the utility model is in, the microbubble shower nozzle is including the component of intaking and the component of going out water that connect each other, is formed with first shrink passageway in the component of intaking, goes out to form in proper order along rivers direction in the component second shrink passageway and expansion channel, and the import size of second shrink passageway is greater than the export size of first shrink passageway, and the component of intaking forms inlet channel with the junction of the component of going out water, inlet channel intercommunication second shrink passageway and external environment. The microbubble shower nozzle includes into water component and play water component two parts, and the component of intaking is connected each other with play water component, forms inlet channel at the junction, and such structure makes the part of microbubble shower nozzle few, and simple structure need not to process inlet channel alone, and it is convenient to make, and manufacturing and use cost are lower.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a microbubble shower nozzle, its characterized in that, microbubble shower nozzle includes the component of intaking and the component of going out water that connect each other, be formed with first shrink passageway in the component of intaking, it contracts the passageway and expands the passageway to form the second in proper order along rivers direction in the component of going out water, the import size that the second contracts the passageway is greater than the export size of first shrink passageway is so that to contract the passageway at the second and form negative pressure zone, the component of intaking with the junction of the component of going out water forms inlet channel, inlet channel intercommunication second shrink passageway and external environment.

2. The microbubble showerhead of claim 1, wherein the water inlet member and the water outlet member are connected by a screw so as to form the gas inlet passage while being connected.

3. The microbubble showerhead of claim 2, wherein the water inlet member is formed with a cylindrical structure at a position near its downstream end, an inner wall of the cylindrical structure is formed with an internal thread, the water outlet member is formed with an external thread on an outer wall at a position near its upstream end to be coupled with the internal thread, and the air intake passage is formed between the internal thread and the external thread.

4. The microbubble showerhead of any of claims 1 to 3, wherein the exit size of the first constricted passage is smaller than the exit size of the second constricted passage.

5. The microbubble showerhead of any of claims 1 to 3, wherein the first converging channel comprises a plurality of sequentially connected first tapered channels; and/or

The second contraction channel comprises a plurality of sections of second conical channels which are connected in sequence; and/or

The expansion channel comprises a plurality of sections of third conical channels which are connected in sequence.

6. The microbubble showerhead of claim 5, wherein the water inlet member further has first constant diameter passages formed therein, the first constant diameter passages being located between adjacent first tapered passages.

7. The microbubble showerhead of any of claims 1 to 3, wherein a second equal-diameter channel is further formed inside the water discharging member, the second equal-diameter channel being located between the second constricted channel and the expanded channel.

8. The microbubble showerhead of any one of claims 1 to 3, wherein the water outlet member is formed with a bubble structure at a position near a downstream end thereof.

9. A washing apparatus characterized by comprising the microbubble showerhead as claimed in any one of claims 1 to 7.

10. The washing apparatus according to claim 9, wherein the washing apparatus is a drum washing machine, a pulsator washing machine, or a shoe washing machine.

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