CN112899992A - Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle - Google Patents
Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle Download PDFInfo
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- CN112899992A CN112899992A CN201911229872.4A CN201911229872A CN112899992A CN 112899992 A CN112899992 A CN 112899992A CN 201911229872 A CN201911229872 A CN 201911229872A CN 112899992 A CN112899992 A CN 112899992A
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- 238000005406 washing Methods 0.000 title abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000007921 spray Substances 0.000 claims abstract description 53
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 4
- 238000005201 scrubbing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003570 air Substances 0.000 description 24
- 239000003599 detergent Substances 0.000 description 17
- 239000007788 liquid Substances 0.000 description 16
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- 238000005507 spraying Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 239000013013 elastic material Substances 0.000 description 1
- 238000010412 laundry washing Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- 230000001954 sterilising effect Effects 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/002—Washing machines, apparatus, or methods not otherwise provided for using bubbles
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nozzles (AREA)
- Bathtubs, Showers, And Their Attachments (AREA)
Abstract
The invention relates to a micro-bubble spray head and washing equipment with the same. The micro-bubble spray head comprises an integrated spray pipe and a micro-bubble net fixed on the outlet end of the integrated spray pipe, wherein a tapered channel part with the diameter being reduced is arranged in the integrated spray pipe, at least one stage of tapered channel with the diameter being reduced is formed in the tapered channel part with the diameter being reduced along the water flow direction, and a spray hole is formed at the downstream end of the tapered channel part with the diameter being reduced, and the spray hole is configured to enable water flowing through the tapered channel with the diameter being reduced to be sprayed out from the spray hole and generate negative pressure in the integrated spray pipe; and an air suction port is provided on the integrated nozzle, the air suction port being positioned such that air can be sucked into the integrated nozzle through the air suction port by means of negative pressure and mixed with water flow to generate bubble water, the bubble water becoming micro-bubble water through the micro-bubble net. The micro-bubble nozzle has good performance of generating micro-bubbles and low manufacturing cost.
Description
Technical Field
The present invention relates to a microbubble generation device, and particularly to a microbubble showerhead and a washing apparatus having the same.
Background
Micro-bubbles (micro-bubbles) generally refer to micro-bubbles having a diameter of fifty micrometers (μm) or less when the bubbles occur. Micro-bubbles may also be referred to as micro-/nano-bubbles, micro-bubbles or nano-bubbles depending on their diameter range. Microbubbles have a relatively long residence time in a liquid because of their small buoyancy in the liquid. Moreover, the microbubbles will shrink in the liquid until finally breaking, generating smaller nanobubbles. In this process, the rise speed of the bubbles becomes slow because they become small, resulting in high melting efficiency. When the microbubbles are broken, high pressure and high temperature heat are locally generated, and thus foreign substances such as organic substances floating in the liquid or adhering to the object can be destroyed. In addition, the contraction process of the microbubbles is accompanied by an increase in negative charge, and the peak state of the negative charge is usually when the diameter of the microbubbles is 1 to 30 μm, so that positively charged foreign substances floating in the liquid are easily adsorbed. The result is that the foreign matter is adsorbed by the microbubbles after it is destroyed by the breaking of the microbubbles, and then slowly floats to the liquid surface. These properties provide the microbubbles with a strong cleaning and purifying power. At present, microbubbles have been widely used in washing apparatuses such as washing machines.
To manufacture microbubbles, microbubble generation devices of different structures have been developed. For example, chinese patent application (CN107321204A) discloses a microbubble generator. This microbubble generator includes that both ends are the shell of opening form, and the first end of shell is connected with the inlet tube, has set gradually vortex post, vortex shell, gas-liquid mixture pipe and has fixed a position the mesh at the second end of shell along the rivers direction in the shell. The gas-liquid mixing pipe is provided with an accommodating cavity, a gas flow part, an accelerating part and a circulating part which are communicated in sequence from the head part to the tail part. The vortex column shell and the vortex column positioned in the vortex column shell are positioned in the accommodating cavity; the pipe wall of the airflow part is provided with an air inlet; the inner wall of the airflow part protrudes towards the direction of the accommodating cavity to form a funnel-shaped protruding part, and a gap for air entering from the air inlet to enter the airflow part is formed between the large opening end of the funnel-shaped protruding part and the conical vortex shell; the inner diameter of the accelerating part gradually increases towards the tail part. Rivers flow through the vortex post at the inside high-speed rotatory rivers that form of vortex shell, high-speed rotatory rivers flow out the back from the export of vortex shell and get into the funnel-shaped space that the bulge encloses in, negative pressure that forms around rivers inhales air from the air inlet and gets into acceleration portion after mixing with rivers, because the internal diameter of the toper face of vortex shell and acceleration portion is towards afterbody direction crescent and form pressure differential, make the rivers (formation bubble water) that mix a large amount of air flow with higher speed, bubble water flows to the hole net via circulation portion, bubble water is cut and is mixed by the pore in the hole net and produce the little bubble water that contains a large amount of microbubbles.
Chinese patent application for invention (CN107583480A) also discloses a microbubble generator. This microbubble generator includes that both ends are the shell of opening form, and the first end of shell is connected with the inlet tube, has set gradually pressure boost pipe, bubble generation pipe and has fixed a position the mesh at the second end of shell along the rivers direction in the shell. The bubble generation pipe is formed with holding chamber, gas-liquid mixture portion, expansion guide portion from first end to second end in proper order. Receiving a booster pipe in the accommodating chamber, the booster pipe having a tapered end facing the accommodating chamber; a tapered gas-liquid mixing space with the size gradually reduced along the direction from the first end to the second end is formed in the gas-liquid mixing part; an expansion guide space is formed in the expansion guide portion, and the size of the expansion guide space increases along the direction from the first end to the second end. The pipe wall of the bubble generation pipe is provided with an air inlet channel, a gap is formed between the inner wall of the gas-liquid mixing part and the outer wall of the pressurization pipe so as to be communicated with the air inlet channel on the pipe wall of the bubble generation pipe, and the water outlet of the pressurization pipe is arranged in the water inlet of the gas-liquid mixing part. The water flow flows through the pressurizing pipe and is pressurized to form high-speed water flow, the high-speed water flow flows out of the water outlet of the pressurizing pipe and enters the gas-liquid mixing cavity, negative pressure is formed in the gas-liquid mixing cavity, a large amount of air is sucked into the water flow through the air inlet channel through the negative pressure, the air and the water are mixed to form bubble water, the bubble water flows to the mesh from the expansion guide portion, and the bubble water is mixed and cut by the fine holes of the mesh to form micro-bubble water.
Both of the above-described two types of microbubble generators have at least five separate components: a shell, a water inlet pipe, a vortex column, a volute or a pressure increasing pipe, a gas-liquid mixing pipe or a bubble generating pipe, and a mesh. These components all require specific mating or connection structures designed to allow all of the components to be assembled together and to ensure that the assembled microbubble generator will operate reliably. Therefore, the microbubble generator is relatively complex in components and structure, and also high in manufacturing cost.
Accordingly, there is a need in the art for a new solution to the above problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, to solve the technical problems of complicated structure and high manufacturing cost of the existing micro-bubble generator, the present invention provides a micro-bubble spray head, comprising an integrated spray pipe and a micro-bubble net fixed on an outlet end of the integrated spray pipe, wherein a tapered passage portion with a decreasing diameter is arranged in the integrated spray pipe, at least one tapered passage with a decreasing diameter is formed in the tapered passage portion with a decreasing diameter along a water flow direction, and a spray hole is formed on a downstream end of the tapered passage portion with a decreasing diameter, and the spray hole is configured to cause the water flowing through the tapered passage with a decreasing diameter to be sprayed out from the spray hole and generate negative pressure in the integrated spray pipe; and a suction port is provided on the integrated nozzle, the suction port being positioned such that air can be sucked into the integrated nozzle through the suction port by the negative pressure and mixed with the water flow to generate bubble water, the bubble water becoming micro-bubble water through the micro-bubble mesh.
In the preferable technical scheme of the micro-bubble spray head, the micro-bubble net is sleeved on the outlet end of the integrated spray pipe and is fixed on the outer wall of the integrated spray pipe through a fixing device.
In a preferred embodiment of the microbubble nozzle, the microbubble network includes at least 2 layers of networks.
In a preferred embodiment of the microbubble nozzle, the microbubble mesh includes a metal mesh or a polymer material mesh.
In a preferred embodiment of the micro-bubble nozzle described above, the tapered passage portion with a reduced diameter is located close to the inlet end of the integrated nozzle, and the suction port is located close to the nozzle hole.
In a preferred embodiment of the micro-bubble nozzle described above, the tapered passage portion with a reduced diameter is located close to the inlet end of the integrated nozzle, and the suction port is located close to the outlet end of the integrated nozzle.
In a preferable embodiment of the micro-bubble nozzle described above, the tapered passage portion with a reduced diameter is located close to the outlet end of the integrated nozzle, and the suction port is located close to the nozzle hole.
In the preferable technical scheme of the micro-bubble nozzle, a turbulent flow part is arranged on the inner wall of the tapered channel part with the diameter being reduced.
In the above-mentioned preferred technical scheme of microbubble shower nozzle, vortex portion sets up at least one radial protruding portion or along on the inner wall of diameter tapered channel portion that diminishes at least one vortex muscle of the inner wall longitudinal extension of tapered channel portion is diminished to the diameter.
As can be appreciated by those skilled in the art, in the technical solution of the present invention, the micro bubble spray head comprises an integrated spray pipe and a micro bubble net fixed on the outlet end of the integrated spray pipe. The integrated spray pipe is internally provided with a tapered channel part with a reduced diameter, at least one tapered channel with a reduced diameter is formed in the tapered channel part with the reduced diameter along the water flow direction, and a spray hole is arranged at the downstream end of the tapered channel part with the reduced diameter. The water flow is pressurized (accelerated) in the at least one stage of tapered passage with the diameter thereof being reduced, and the pressurized water flow is ejected from the nozzle hole into the downstream passage in the integrated nozzle pipe with rapid expansion and negative pressure is generated in the downstream passage. The integrated nozzle is provided with an air inlet which is in a negative pressure action range, so that a large amount of air is sucked into the integrated nozzle from the outside through the air inlet under the action of negative pressure and is mixed with water to generate bubble water containing a large amount of bubbles. The bubble water then flows through a micro bubble net located on the outlet end of the integrated nozzle to be cut and mixed, thereby generating micro bubble water containing a large amount of micro bubbles. In the technical scheme of the micro-bubble spray head, the function of generating micro-bubbles is realized through a tapered channel part with the diameter reduced and designed in the integrated spray pipe and a micro-bubble net fixed at the outlet end of the integrated spray pipe. Therefore, compared with the prior art micro-bubble generator having many parts, the micro-bubble showerhead of the present invention not only has good micro-bubble generation performance, but also has a greatly reduced number of parts, thereby eliminating the need for designing and manufacturing a connection structure between the parts, so that the manufacturing cost of the entire micro-bubble showerhead can be significantly reduced.
Preferably, the spoiler is provided on an inner wall of the tapered passage portion having a reduced diameter. These turbulators can help the water flow mix the air being drawn more efficiently downstream by increasing the turbulence of the water.
The present invention also provides a washing apparatus comprising any one of the microbubble jet heads as described above, the microbubble jet head being arranged to generate microbubble water within the washing apparatus. The micro-bubble shower head generates micro-bubble water containing a large amount of micro-bubbles in the washing apparatus, so that not only the washing capacity of the washing apparatus can be improved, but also the amount of detergent used can be reduced and the residual amount of the detergent in, for example, laundry can be reduced.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a washing apparatus including a microbubble showerhead according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of the washing apparatus including the micro-bubble shower head according to the present invention;
FIG. 3 is a top view of an embodiment of the microbubble showerhead of the present invention;
FIG. 4 is a left side view of an embodiment of the microbubble showerhead of the present invention;
FIG. 5 is a front view of an embodiment of the microbubble showerhead of the present invention;
fig. 6 is a sectional view of the first embodiment of the micro-bubble jet head of the present invention, taken along the section line a-a of fig. 5;
fig. 7 is a sectional view of a second embodiment of the micro-bubble jet head of the present invention, taken along section line a-a of fig. 5;
fig. 8 is a sectional view of a third embodiment of the micro-bubble jet head of the present invention, taken along section line a-a of fig. 5;
fig. 9 is a sectional view of a fourth embodiment of the micro-bubble jet head of the present invention, taken along section line a-a of fig. 5.
List of reference numerals:
1. a pulsator washing machine; 11. a box body; 12. a tray seat; 13; an upper cover; 14. a foot margin of the pulsator washing machine; 21. an outer tub; 31. an inner barrel; 311. a dewatering hole; 32. an impeller; 33. a transmission shaft of the pulsator washing machine; 34. a motor of the pulsator washing machine; 35. a balance ring; 41. a drain valve; 42. a drain pipe; 51. a water inlet valve; 52. a micro bubble spray head; 521. an integrated nozzle; 522. a micro-bubble network; 523. pressing a ring; 211. an inlet end; 212. an outlet end; 213. a slip-off preventing part; 214A, a first fixed mounting portion; 214B, a second fixed mounting portion; 215. a positioning part; 216. an air suction port; 217. a tapered passage portion with a reduced diameter; 217a and a spoiler portion; 217b, a first-stage tapered passage with a reduced diameter; 217c, a second stage tapered passage of decreasing diameter; 218. spraying a hole; 300. an annular gap; 9. a drum washing machine; 91. a housing; 92. an outer cylinder; 93. an inner barrel; 931. a motor of the drum washing machine; 932. a transmission shaft of the drum washing machine; 933. a bearing; 94. a top deck plate; 95. a control panel; 96. an observation window; 97. a door body; 98. foot margin of drum type washing machine.
Detailed Description
Preferred embodiments of the present invention are 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.
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 in a specific orientation, and be operated, 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 meanings 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 the problems of complex structure and high manufacturing cost of the conventional microbubble generator, the present invention provides a microbubble nozzle that includes an integrated nozzle 521 and a microbubble network 522 (see fig. 3 to 9). A tapered passage portion 217 having a reduced diameter is provided in the integrated nozzle 521. At least one step of a tapered passage with a reduced diameter is formed in the tapered passage portion 217 with a reduced diameter along the water flow direction C, and a nozzle hole 218 is formed on the downstream end of the tapered passage portion 217 with a reduced diameter. The orifice 218 is configured such that water flowing through the at least one stage of tapered passageway of decreasing diameter is ejected therefrom and creates a negative pressure within the integrated spout 521. On the tube wall of the integrated spout 521 is provided an air intake 216, which air intake 216 is positioned such that air can be drawn into the integrated spout 521 through the air intake 216 by means of negative pressure and mixed with the water flow to produce bubble water. The bubble water becomes micro-bubble water through the micro-bubble mesh 522. Therefore, compared with the micro-bubble generator in the prior art, the micro-bubble nozzle has the advantages that the number of components and the structure are greatly simplified, the manufacturing cost of the micro-bubble nozzle is greatly reduced, and meanwhile, the micro-bubble nozzle has good micro-bubble generating performance.
The "tapered passage portion with a reduced diameter" as referred to herein means a structure in which a passage formed inside the portion is tapered in diameter in the water flow direction.
The micro-bubble spray head can be applied to the washing field, the sterilization field or other fields needing micro-bubbles. For example, the micro-bubble sprayer of the invention can be applied to washing equipment and can also be combined into devices such as a bathroom faucet or a shower head.
Therefore, the present invention also provides a washing apparatus including the microbubble showerhead 52 of the present invention. The micro-bubble spray head 52 is configured to generate micro-bubble water within the scrubbing apparatus. The micro bubble water containing a large amount of micro bubbles is generated in the washing apparatus by the micro bubble spraying head 52, not only can the washing capacity of the washing apparatus be improved, but also the amount of the detergent used can be reduced and the residual amount of the detergent in, for example, laundry can be reduced, thereby not only contributing to the health of the user, but also improving the user experience.
Referring to fig. 1, fig. 1 is a schematic structural view of an embodiment of a washing apparatus having a micro-bubble spray head according to the present invention. In this embodiment, the washing apparatus is a pulsator washing machine 1. Alternatively, in other embodiments, the washing apparatus may be a drum washing machine or a dryer, etc.
As shown in fig. 1, a pulsator washing machine 1 (hereinafter, referred to as a washing machine) includes a cabinet 11. Feet 14 are provided at the bottom of the case 11. The upper part of the box body 11 is provided with a tray 12, and the tray 12 is pivotally connected with an upper cover 13. An outer tub 21 as a tub is provided in the cabinet 11. 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, the motor 34 is in driving connection with the wave wheel 32 through a transmission shaft 33, and the side wall of the inner barrel 31 is provided with a dewatering hole 311. The drain valve 41 is provided on the drain pipe 42, and an upstream end of the drain pipe 42 communicates with the bottom of the outer tub 21. The washing machine further includes a water inlet valve 51 and a micro bubble spray head 52 communicating with the water inlet valve 51, the micro bubble spray head 52 being installed on the top of the outer tub 21. The water enters the micro bubble spray head 52 through the water inlet valve 51 to generate micro bubble water containing a large amount of micro bubbles, and the micro bubble spray head 52 sprays the micro bubble water into the detergent box to be mixed with the detergent, and then enters the inner tub 31 through the detergent box for washing the laundry. The micro-bubbles in the water impact the detergent in the crushing process, and the micro-bubbles can adsorb the detergent through the carried negative charges, so that the micro-bubbles can increase the mixing degree of the detergent and the water, thereby reducing the using amount of the detergent and reducing the residual amount of the detergent on the clothes. In addition, the micro bubbles may also hit dirt on the laundry in the inner tub 31 and may adsorb foreign substances that generate the dirt. Therefore, the micro bubbles also enhance the detergency performance of the washing machine. Alternatively, the micro bubble spray head may also directly spray micro bubble water carrying a large amount of micro bubbles into the outer tub 21 or the inner tub 31 of the washing machine to further reduce the amount of detergent and enhance the cleaning ability of the washing machine.
Referring to fig. 2, fig. 2 is a schematic structural view of another embodiment of the washing apparatus with the micro-bubble shower head according to the present invention. In this embodiment, the washing apparatus is a drum washing machine 9.
As shown in fig. 2, the drum washing machine 9 includes a housing 91 and a foot 98 at the bottom of the housing. An upper deck plate 94 is provided on the top of the housing 91. A door 97 for allowing a user to load laundry or the like into the drum washing machine is provided on a front side (an operation side facing the user) of the casing 91, and an observation window 96 for allowing the user to see the inside of the washing machine is provided on the door 97. A sealing window gasket 961 is further provided between the observation window 96 and the casing 91, and the sealing window gasket 961 is fixed to the casing 91. A control panel 95 of the drum washing machine 9 is disposed at an upper portion of the front side of the casing 91 to facilitate the operation of a user. An outer cylinder 92 and an inner cylinder 93 are disposed inside the outer shell 91. The inner cylinder 93 is positioned inside the outer cylinder 92. The inner drum 93 is connected to a motor 931 (e.g., a direct drive motor) via a drive shaft 932 and a bearing 933. A water inlet valve 51 is provided on an upper portion of the rear side of the housing 91, and the water inlet valve 51 is connected to the micro bubble jet head 52 through a water pipe. As shown in fig. 2, the microbubble head 52 is positioned near the upper front portion of the casing 91 and below the control panel 95. Similar to the above embodiment, water enters the micro bubble spray head 52 through a water pipe via the water inlet valve 51 to generate micro bubble water containing a large amount of micro bubbles, and the micro bubble spray head 52 sprays the micro bubble water into the detergent box to be mixed with the detergent, and then enters the inner tub 93 via the detergent box for laundry washing. Alternatively, the micro-bubble jet head 52 may also directly spray micro-bubble water carrying a large amount of micro-bubbles into the outer tub 92 or the inner tub 93 of the washing machine to further reduce the amount of detergent used and enhance the cleaning ability of the washing machine.
Referring to fig. 3 to 5, fig. 3 to 5 are schematic views of an embodiment of the microbubble showerhead of the present invention, wherein fig. 3 is a top view of the embodiment of the microbubble showerhead of the present invention, fig. 4 is a left side view of the embodiment of the microbubble showerhead of the present invention, and fig. 5 is a front view of the embodiment of the microbubble showerhead of the present invention. As shown in fig. 3-5, in one or more embodiments, the microbubble spray head 52 of the present invention includes an integrated spray tube 521. Mounted on the outlet end 212 of the integrated nozzle 521 is a micro-bubble screen 522, the micro-bubble screen 522 being configured to cut and mix bubble water as it flows therethrough to produce micro-bubble water containing a plurality of micro-bubbles.
Referring to FIGS. 3-5, in one or more embodiments, integrated lance 521 has an inlet end 211 and an outlet end 212. A micro-bubble mesh 522 is secured to the outlet end 212, while the inlet end 211 is adapted for connection to an external water source. Alternatively, a slip-off prevention portion 213, such as a slip-off prevention rib protruding radially outward around the outer wall of the inlet end 211 or an annular groove structure recessed inward from the outer wall of the inlet end 211, may be provided on the inlet end 211 to prevent the integrated nozzle from falling off from the pipe connected thereto for supplying water.
With continued reference to fig. 3-5, in one or more embodiments, a first fixed mount 214A, a second fixed mount 214B, and a positioning portion 215 are provided on the outer wall of the integrated nozzle 521 for positioning and fixing the microbubble head 52 at a predetermined position.
Referring to fig. 3 and 5, the first and second fixed mounts 214A and 214B are symmetrically positioned on the outer wall of the integrated spout 521 and at the middle of the integrated spout 521. The positioning portion 215 is a long rib, radially outwardly protrudes from the outer wall of the integrated spout 521, and extends in the longitudinal direction of the integrated spout 521. The first and second fixing-mounting portions 214A and 214B are distributed on both sides of the positioning portion 215. Alternatively, only one fixed mounting portion may be provided on the integrated nozzle 521, and the positioning portion 215 may take other suitable forms.
In one or more embodiments, the first and second fixing mounts 214A, 214B are screw hole structures to fix the spray head 52 to a target location with screws. However, the fixed mounting portion may employ any suitable connection structure, such as a snap-fit connection structure, a welded connection structure, or the like.
Referring to fig. 3-5, in one or more embodiments, a micro-bubble mesh 522 is fitted over the outlet end 212 of the integrated lance 521 and secured to the outer wall of the integrated lance 521 by a securing device, such as a compression ring 523. Alternatively, the pressure ring 523 may be a metal snap spring. Alternatively, elastic bands of elastic material (e.g., rubber bands) or plastic ties, among other suitable materials, may be used to secure the micro-bubble mesh 522.
In one or more embodiments, the micro-bubble web 522 has at least one pore with a diameter on the order of microns. Preferably, the diameter of the fine pores is between 0 and 1000 microns; more preferably, the diameter of the fine pores is between 5 and 500 μm. In one or more embodiments, the micro-bubble mesh 522 may be a metal mesh or a polymeric material mesh, or other suitable mesh structure. The metal mesh includes, but is not limited to, stainless steel wire, nickel wire, brass wire, etc. The polymer material net is usually a net having a microporous structure formed by weaving a polymer material into filaments. In weaving a closed-weave mesh, the weft filaments are densely arranged, which can be woven by the following weaving method: plain weave, twill weave, plain dutch weave, twill dutch weave, reverse dutch weave. Polymeric webs include, but are not limited to, nylon (polyester) webs, cotton webs, polypropylene webs, and the like. For example, the micro-bubble web may be formed from a cotton web. As the bubble water flows through the micro bubble net 522, the micro bubble net 522 produces a mixing and cutting action on the bubble water, thereby producing micro bubble water.
In one or more embodiments, the micro-bubble web 522 has a structure of at least two layers. The larger the number of layers of the micro bubble net 522, the better the micro bubble generation effect, but the resistance to the water flow is increased. Optionally, the number of layers of the micro bubble net 522 is not less than 3 and not more than 12. In an alternative embodiment, the number of layers of the micro bubble net 522 is not less than 3 and not more than 5.
Fig. 6 is a sectional view of the first embodiment of the micro-bubble jet head of the present invention, taken along the section line a-a of fig. 5. Referring to FIG. 6, in one or more embodiments, within integral spout 521, tapered passageway 217 is provided having a reduced diameter. The reduced diameter tapered channel portion 217 is positioned adjacent to the inlet end 211 of the integrated spout 521. A first-stage tapered passage 217b of decreasing diameter is formed in the tapered passage portion 217 of decreasing diameter in the water flow direction C, and a nozzle hole 218 is provided on the downstream end of the tapered passage portion 217 of decreasing diameter. The orifices 218 communicate with upstream first-stage reduced-diameter tapered channels 217b and downstream channels within the integral lance 521, respectively. A shorter second-stage tapered passageway 217C of decreasing diameter is also formed in the inlet end 211 of the integral lance 521 along the water flow direction C. The second-stage reduced diameter tapered passageway 217c extends downstream directly to the first-stage reduced diameter tapered passageway 217b, and the minimum diameter of the second-stage reduced diameter tapered passageway 217c at its downstream end is greater than the maximum diameter of the first-stage reduced diameter tapered passageway 217 b. In alternative one or more embodiments, more than one step of the tapered passage with a reduced diameter, for example, two, three or more steps of the tapered passage with a reduced diameter may be formed in the tapered passage portion 217 with a reduced diameter along the water flow direction C.
With continued reference to fig. 6, a spoiler 217a is formed on an inner wall of the tapered passage portion 217 having a reduced diameter. In one or more embodiments, the turbulator 217a is at least one turbulator, such as a plurality of turbulators, extending longitudinally along an inner wall of the tapered channel portion having a decreasing diameter. In an alternative embodiment, turbulator 217a may be at least one radial protrusion, such as one or more cylindrical protrusions, on the inner wall of the tapered channel portion of decreasing diameter. Alternatively, the spoiler 217a may be formed only on the inner wall corresponding to the first-stage tapered passage with a reduced diameter, or on the inner wall corresponding to each of the stages tapered passages with a reduced diameter, or on the inner wall corresponding to more than one stage tapered passages with a reduced diameter.
As shown in FIG. 6, in one or more embodiments, the outer wall of the reduced diameter tapered channel portion 217 is separated from the inner wall of the integrated spout 521, thereby forming an annular gap 300 between the outer wall of the reduced diameter tapered channel portion 217 and the inner wall of the integrated spout 521. The annular gap 300 facilitates the mixing of the air with the water flow, thereby generating more micro-bubbles.
As shown in fig. 6, the integrated nozzle 521 is also formed with an air inlet 216. The suction port 216 is formed on a tube wall of the integrated spout 521 and is positioned adjacent to the orifice 218. The water flow enters from the inlet end 211 of the integrated nozzle 521, flows through the first-stage tapered channel 217c with the reduced diameter and then flows into the second-stage tapered channel 217b with the reduced diameter, so that the water flow is pressurized, and the turbulent flow part 217a can increase the vortex of the water flow. The pressurized water flow is ejected from the nozzle hole 218 into the downstream channel of the integrated nozzle 521 and is rapidly expanded, thereby generating a negative pressure in the downstream channel of the integrated nozzle 521. Under the negative pressure, a large amount of external air is sucked from the suction port 216 into the integrated nozzle 521 and mixed with the water flow therein to generate bubble water. The bubble water is cut and mixed while passing through the micro-bubble net 522, thereby generating micro-bubble water.
Fig. 7 is a sectional view of a second embodiment of the micro-bubble jet head of the present invention, taken along section line a-a of fig. 5. As shown in fig. 7, in this embodiment, the tapered passage portion 217 having a reduced diameter is positioned near the inlet end of the integrated nozzle 521, but the suction port 216 is positioned near the outlet end of the integrated nozzle 521, and thus near the micro-bubble net 522. In this embodiment, the suction port 216 is still within the range of negative pressure action created by the nozzle hole 218, so that when water flows from the nozzle hole 218 into the downstream passage of the integrated spout 521 in an expanding manner, ambient air is sucked from the suction port 216 into the integrated spout and mixed with the water flow by the negative pressure. The portions not mentioned in this embodiment are the same as those in the above embodiment.
Fig. 8 is a sectional view of a third embodiment of the micro-bubble jet head of the present invention, taken along section line a-a of fig. 5. As shown in fig. 8, in this embodiment, the reduced diameter tapered channel portion 217 is positioned near the outlet end 212 of the integrated spout 521, and the suction port 216 is positioned near the nozzle hole 218 on the downstream end of the reduced diameter tapered channel portion 217. Second-stage reduced diameter tapered passageway 217c extends a greater distance from inlet end 211 of integrated nozzle 521 to first-stage reduced diameter tapered passageway 217b within reduced diameter tapered passageway portion 217. In this embodiment, no turbulators are provided within the reduced diameter tapered channel portion 217. The portions not mentioned in this embodiment are the same as those in the above embodiment.
Fig. 9 is a sectional view of a fourth embodiment of the micro-bubble jet head of the present invention, taken along section line a-a of fig. 5. As shown in fig. 9, in this embodiment, the reduced diameter tapered channel portion 217 is positioned also near the outlet end 212 of the integrated spout 521, and the suction port 216 is positioned near the nozzle hole 218 located on the downstream end of the reduced diameter tapered channel portion 217. Second-stage reduced diameter tapered passageway 217c extends a greater distance from inlet end 211 of integrated nozzle 521 to first-stage reduced diameter tapered passageway 217b within reduced diameter tapered passageway portion 217. In this embodiment, a spoiler 217a, specifically a plurality of longitudinal spoiler ribs extending along an inner wall of the tapered passage portion 217 is provided in the tapered passage portion 217. The portions not mentioned in this embodiment are the same as those in the above embodiment.
So far, the technical solutions of the present invention have been described in connection with 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 invention, a person skilled in the art may combine technical features from different embodiments, and may make equivalent changes or substitutions for related technical features, and such changes or substitutions will fall within the scope of the invention.
Claims (10)
1. A micro-bubble spray head is characterized in that the micro-bubble spray head comprises an integrated spray pipe and a micro-bubble net fixed on the outlet end of the integrated spray pipe,
a tapered passage portion of a reduced diameter in which at least one stage of a tapered passage of a reduced diameter is formed along a water flow direction is provided in the integrated nozzle, and a nozzle hole configured such that a water flow flowing through the tapered passage of a reduced diameter is ejected from the nozzle hole and a negative pressure is generated in the integrated nozzle is provided on a downstream end of the tapered passage portion of a reduced diameter; and is
An air intake is provided on the integrated spout, the air intake being positioned such that air can be drawn into the integrated spout through the air intake by the negative pressure and mixed with the water flow to produce bubble water that becomes micro-bubble water through the micro-bubble mesh.
2. The microbubble showerhead of claim 1, wherein the microbubble mesh is fitted over the outlet end of the integrated nozzle and fixed to the outer wall of the integrated nozzle by a fixing means.
3. The microbubble showerhead of claim 1 or 2, wherein the microbubble network comprises at least 2 layers of network.
4. The microbubble showerhead of claim 1 or 2, wherein the microbubble mesh comprises a metal mesh or a polymer material mesh.
5. The micro-bubble spray head of claim 1 or 2, wherein the tapered passage portion with the reduced diameter is positioned near an inlet end of the integrated nozzle, and the suction port is positioned near the nozzle hole.
6. The microbubble showerhead of claim 1 or 2, wherein the tapered passage portion with the reduced diameter is positioned near an inlet end of the integrated nozzle, and the suction port is positioned near an outlet end of the integrated nozzle.
7. The microbubble showerhead of claim 1 or 2, wherein the tapered passage portion having the reduced diameter is positioned near an outlet end of the integrated nozzle, and the suction port is positioned near the nozzle hole.
8. The microbubble showerhead of claim 1 or 2, wherein a spoiler is provided on an inner wall of the tapered passage portion having a reduced diameter.
9. The microbubble showerhead of claim 8, wherein the turbulator is at least one radial protrusion provided on an inner wall of the tapered diameter passage portion or at least one turbulator rib extending longitudinally along the inner wall of the tapered diameter passage portion.
10. A scrubbing apparatus, comprising a microbubble spray head according to any of claims 1 to 9, the microbubble spray head being configured to generate microbubble water within the scrubbing apparatus.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229872.4A CN112899992B (en) | 2019-12-04 | 2019-12-04 | Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle |
| PCT/CN2020/132826 WO2021109971A1 (en) | 2019-12-04 | 2020-11-30 | Micro-bubble spray head and washing device with same |
| EP20897293.5A EP4071290A4 (en) | 2019-12-04 | 2020-11-30 | Micro-bubble spray head and washing device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229872.4A CN112899992B (en) | 2019-12-04 | 2019-12-04 | Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle |
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| CN112899992A true CN112899992A (en) | 2021-06-04 |
| CN112899992B CN112899992B (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911229872.4A Active CN112899992B (en) | 2019-12-04 | 2019-12-04 | Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023207469A1 (en) * | 2022-04-28 | 2023-11-02 | 青岛海尔洗涤电器有限公司 | Water inlet system and control method for washing device, and washing device |
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