CN112899992B - 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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- CN112899992B CN112899992B CN201911229872.4A CN201911229872A CN112899992B CN 112899992 B CN112899992 B CN 112899992B CN 201911229872 A CN201911229872 A CN 201911229872A CN 112899992 B CN112899992 B CN 112899992B
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- 238000005406 washing Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000007921 spray Substances 0.000 claims abstract description 60
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003570 air Substances 0.000 description 30
- 239000003599 detergent Substances 0.000 description 17
- 239000007788 liquid Substances 0.000 description 16
- 239000011148 porous material Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000002101 nanobubble Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007789 sealing 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
- 230000001133 acceleration Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009940 knitting Methods 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
- 230000008018 melting Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- 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 diameter-reduced conical channel part is arranged in the integrated spray pipe, at least one stage of diameter-reduced conical channel is formed in the diameter-reduced conical channel part along the water flow direction, and a spray hole is formed on the downstream end of the diameter-reduced conical channel part, and the spray hole is configured to enable water flow flowing through the at least one stage of diameter-reduced conical channel to be sprayed out of the spray hole and generate negative pressure in the integrated spray pipe; and an air suction port is arranged on the integrated spray pipe, and the air suction port is positioned so that air can be sucked into the integrated spray pipe through the air suction port by means of negative pressure and is mixed with water flow to generate bubble water, and the bubble water is changed into micro bubble water through a micro bubble net. The microbubble nozzle has good microbubble generating performance and low manufacturing cost.
Description
Technical Field
The invention relates to a microbubble generating device, in particular to a microbubble spray head and washing equipment with the microbubble spray head.
Background
Microbubbles (micro-bubbles) generally refer to microbubbles having a diameter of fifty micrometers (μm) or less when the bubbles are generated. Microbubbles may also be referred to as micro-/nano-bubbles, micro-bubbles or nano-bubbles, depending on their diameter range. Microbubbles stay in the liquid for a relatively long time because of their low buoyancy in the liquid. Moreover, the microbubbles shrink in the liquid until eventually break up, creating smaller nanobubbles. In this process, the rising speed of the bubbles becomes slow because they become small, resulting in high melting efficiency. The microbubbles locally generate high pressure and high temperature heat when they are broken, and thus can destroy foreign matters such as organic matters floating in the liquid or adhering to the object. In addition, the contraction process of microbubbles is accompanied by an increase in negative charge, and the peak state of negative charge is usually when the diameter of 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 broken by the break-up of the microbubbles, and then slowly floats to the surface of the liquid. These characteristics provide the microbubbles with a strong cleaning and decontamination capability. At present, microbubbles have been widely used in washing apparatuses such as washing machines.
In order to manufacture microbubbles, microbubble generating devices of different structures have been developed. For example, chinese patent application (CN 107321204 a) discloses a microbubble generator. The microbubble generator comprises a shell with two open ends, wherein a water inlet pipe is connected with the first end of the shell, and a vortex column, a vortex column shell, a gas-liquid mixing pipe and a hole network positioned at the second end of the shell are sequentially arranged in the shell along the water flow direction. The gas-liquid mixing tube is sequentially provided with a containing cavity, an airflow part, an accelerating part and a circulating part which are communicated 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 air flow part is provided with an air inlet; the inner wall of the air flow 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 air flow part is formed between the large opening end of the funnel-shaped protruding part and the conical vortex shell; the inner diameter of the acceleration portion gradually increases toward the tail portion. The water flow flows through the vortex column to form high-speed rotating water flow inside the vortex column shell, the high-speed rotating water flow flows out from the outlet of the vortex column shell and then enters the funnel-shaped space surrounded by the protruding part, air is sucked from the air inlet and mixed with the water flow by negative pressure formed around the water flow and then enters the accelerating part, the conical surface of the vortex column shell and the inner diameter of the accelerating part gradually increase towards the tail direction to form pressure difference, so that the water flow (bubble forming water) mixed with a large amount of air flows in an accelerating way, the bubble water flows to the hole network through the circulating part, and the bubble water is cut and mixed by the fine holes in the hole network to generate micro bubble water containing a large amount of micro bubbles.
Chinese patent application (CN 107583480 a) also discloses a microbubble generator. The microbubble generator comprises a shell with two open ends, wherein a water inlet pipe is connected with the first end of the shell, and a pressurizing pipe, a bubble generating pipe and a hole net positioned at the second end of the shell are sequentially arranged in the shell along the water flow direction. The bubble generating tube is formed with a receiving chamber, a gas-liquid mixing portion, and an expansion guide portion in this order from the first end to the second end. Receiving a booster tube within the receiving cavity, the booster tube having a tapered end facing the receiving cavity; a tapered gas-liquid mixing space having a gradually decreasing size in a direction from the first end to the second end is formed in the gas-liquid mixing section; the expansion guide portion has an expansion guide space formed therein, the expansion guide space increasing in size in a direction from the first end to the second end. An air inlet channel is arranged on the wall of the bubble generating pipe, a gap is formed between the inner wall of the gas-liquid mixing part and the outer wall of the pressurizing pipe so as to be communicated with the air inlet channel on the wall of the bubble generating pipe, and the water outlet of the pressurizing pipe is arranged in the water inlet of the gas-liquid mixing part. The water flow is pressurized through the pressurizing pipe to form high-speed water flow, the high-speed water flow flows out from the water outlet of the pressurizing pipe, then 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, the air is mixed with the water to form bubble water, the bubble water flows to the pore network from the expansion guide part, and the bubble water is mixed and cut by the pores of the pore network to form micro bubble water.
Both microbubble generators described above have at least five separate components: the device comprises a shell, a water inlet pipe, a vortex column, a volute or a pressurizing pipe, a gas-liquid mixing pipe or a bubble generating pipe and a hole network. These components all require a specific mating or connecting structure to be designed so that all components can be assembled together and so that the assembled microbubble generator can reliably function. Therefore, the components and structure of such a microbubble generator are complex and the manufacturing cost is high.
Accordingly, there is a need in the art for a new solution to the above-mentioned problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, in order to solve the technical problems of the existing microbubble generator that the structure is complicated and the manufacturing cost is high, the present invention provides a microbubble shower head comprising an integrated shower pipe in which a diameter-reduced tapered channel portion is provided, at least one stage of diameter-reduced tapered channel is formed in the diameter-reduced tapered channel portion along the water flow direction, and a spray hole is formed on the downstream end of the diameter-reduced tapered channel portion, the spray hole being configured such that a water flow flowing through the at least one stage of diameter-reduced tapered channel is sprayed from the spray hole and a negative pressure is generated in the integrated shower pipe; and an air suction port is provided on the integral nozzle, the air suction port being positioned so that air can be sucked into the integral nozzle through the air suction port by means of the negative pressure and mixed with the water flow to generate bubble water, the bubble water being changed into micro bubble water through the micro bubble network.
In the preferred technical scheme of the microbubble spray head, the microbubble mesh 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 above micro-bubble jet, the micro-bubble net comprises at least 2 layers of net.
In the preferable technical scheme of the micro-bubble spray head, the micro-bubble net comprises a metal net or a polymer material net.
In the preferable mode of the microbubble ejection head described above, the diameter-reduced tapered passage portion is positioned near the inlet end of the integrated nozzle pipe, and the suction port is positioned near the nozzle hole.
In the preferable mode of the microbubble ejection head described above, the diameter-reduced tapered passage portion is positioned near the inlet end of the integrated nozzle, and the suction port is positioned near the outlet end of the integrated nozzle.
In the preferable mode of the microbubble ejection head described above, the diameter-reduced tapered passage portion is positioned near the outlet end of the integrated nozzle pipe, and the suction port is positioned near the nozzle hole.
In the preferable technical scheme of the microbubble spray head, a turbulent flow part is arranged on the inner wall of the tapered channel part with the reduced diameter.
In the preferable technical solution of the micro-bubble spray head, the turbulence part is at least one radial protrusion part arranged on the inner wall of the tapered channel part with reduced diameter or at least one turbulence rib extending longitudinally along the inner wall of the tapered channel part with reduced diameter.
As will be appreciated by those skilled in the art, in the present solution, the microbubble spray head comprises an integral nozzle and a microbubble mesh secured to the outlet end of the integral nozzle. A tapered passage portion having a smaller diameter is provided in the integrated nozzle, at least one tapered passage having a smaller diameter is formed in the tapered passage portion in the water flow direction, and a nozzle hole is provided at the downstream end of the tapered passage portion. The water flow is pressurized (accelerated) in the tapered passage with the reduced diameter of the at least one stage, and the pressurized water flow is rapidly expanded from the nozzle hole to be injected into a downstream passage in the integrated nozzle and negative pressure is generated in the downstream passage. The integral nozzle is provided with an air inlet which is in the negative pressure action range, so that a large amount of air is sucked into the integral nozzle from the outside through the air inlet under the action of the 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 network located on the outlet end of the integrated nozzle to be cut and mixed, thereby producing micro-bubble water containing a large number of micro-bubbles. In the technical scheme of the microbubble spray head, the function of generating microbubbles is realized through the tapered channel part with the reduced diameter designed in the integrated spray pipe and the microbubble net fixed at the outlet end of the integrated spray pipe. Therefore, compared with the microbubble generator with a plurality of parts in the prior art, the microbubble nozzle has good microbubble generating performance, the number of the parts of the microbubble nozzle is greatly reduced, and the requirement of designing and manufacturing a connecting structure between the parts is eliminated, so that the manufacturing cost of the whole microbubble nozzle is obviously reduced.
Preferably, a spoiler is provided on an inner wall of the tapered passage portion having a smaller diameter. These turbulators can help the water flow mix the sucked air more effectively downstream by increasing the turbulence of the water.
The present invention also provides a washing apparatus comprising any one of the microbubble spray heads described above arranged to generate microbubble water within the washing apparatus. The microbubble spray head generates microbubble water containing a large amount of microbubbles in the washing apparatus, and thus can not only improve the cleaning ability of the washing apparatus, but also reduce the amount of detergent used and reduce the residual amount of detergent in, for example, laundry.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the structure of one embodiment of a washing apparatus of the present invention including a micro-bubble spray head;
FIG. 2 is a schematic view of the structure of another embodiment of the washing apparatus of the present invention including a micro-bubble spray head;
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 spray head of the present invention;
FIG. 5 is a front view of an embodiment of the microbubble spray head of the present invention;
FIG. 6 is a cross-sectional view of a first embodiment of the microbubble spray head of the present invention taken along section line A-A of FIG. 5;
FIG. 7 is a cross-sectional view of a second embodiment of the microbubble spray head of the present invention taken along section line A-A of FIG. 5;
FIG. 8 is a cross-sectional view of a third embodiment of the microbubble spray head of the present invention taken along section line A-A of FIG. 5;
Fig. 9 is a cross-sectional view of a fourth embodiment of the microbubble spray head of the present invention taken along section line A-A of fig. 5.
List of reference numerals:
1. Pulsator washing machine; 11. a case; 12. a tray seat; 13; an upper cover; 14. foot margin of pulsator washing machine; 21. an outer tub; 31. an inner barrel; 311. a dehydration hole; 32. a pulsator; 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 microbubble spray head; 521. an integral spray pipe; 522. a micro bubble network; 523. a compression ring; 211. an inlet end; 212. an outlet end; 213. a release stopping 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 of reduced diameter; 217a, spoiler; 217b, first-order diameter-reduced tapered channel; 217c, tapered channel of reduced second order diameter; 218. a spray hole; 300. an annular gap; 9. a drum washing machine; 91. a housing; 92. an outer cylinder; 93. an inner cylinder; 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 of the drum 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 merely for explaining the technical principles 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, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements 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," "second," and the like, 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 explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
In order to solve the problems of the existing microbubble generator, such as complicated structure and high manufacturing cost, the present invention provides a microbubble showerhead including an integrated nozzle 521 and a microbubble mesh 522 (see fig. 3-9). A tapered passage portion 217 of reduced diameter is provided in the integral nozzle 521. At least one stage of tapered passage of reduced diameter is formed in the tapered passage portion 217 in the water flow direction C, and a nozzle hole 218 is formed on the downstream end of the tapered passage portion 217 of reduced diameter. The orifice 218 is configured such that water flowing through the at least one tapered channel of decreasing diameter is ejected from the orifice and creates a negative pressure within the integrated nozzle 521. An air inlet 216 is provided in the pipe wall of the integral nozzle 521, which air inlet 216 is positioned such that air can be sucked into the integral nozzle 521 by means of a negative pressure through the air inlet 216 and mixed with the water flow to generate bubble water. The bubble water becomes micro bubble water through the micro bubble network 522. Therefore, compared with the microbubble generator in the prior art, the microbubble nozzle has the advantages that the number of components and the structure are greatly simplified, the manufacturing cost of the microbubble nozzle is greatly reduced, and meanwhile, the microbubble nozzle has good microbubble generating performance.
The "tapered passage portion with a reduced diameter" referred to herein refers to a structure in which a passage formed inside the portion is tapered by gradually reducing the diameter in the water flow direction.
The microbubble spray head can be applied to the washing field, the sterilization field or other fields requiring microbubbles. For example, the microbubble spray head of the present invention can be applied to washing equipment, and can be incorporated into a bathroom faucet or shower head, etc.
Accordingly, the present invention also provides a washing apparatus comprising the microbubble spray head 52 of the present invention. The micro-bubble jet 52 is arranged to generate micro-bubble water within the washing apparatus. The generation of the micro bubble water containing a large amount of micro bubbles in the washing apparatus through the micro bubble jet 52 can not only improve the washing ability of the washing apparatus, but also reduce the amount of detergent and the residual amount of detergent in, for example, laundry, thereby not only contributing to the health of the user, but also improving the user's 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 of 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 drying integrated machine, or the like.
As shown in fig. 1, a pulsator washing machine 1 (hereinafter referred to as a washing machine) includes a casing 11. A foot 14 is provided at the bottom of the case 11. The upper portion of the box 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, a pulsator 32 is arranged at the bottom of the inner barrel 31, a motor 34 is fixed at the lower part of the outer barrel 21, the motor 34 is in driving connection with the pulsator 32 through a transmission shaft 33, and a dehydration hole 311 is arranged on the side wall of the inner barrel 31. 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 jet 52 in communication with the water inlet valve 51, the micro bubble jet 52 being mounted on the top of the outer tub 21. The water enters the micro bubble jet 52 through the water inlet valve 51 to generate micro bubble water containing a large amount of micro bubbles, and the micro bubble jet 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 absorb the detergent through the carried negative charge, so that the micro-bubbles can increase the mixing degree of the detergent and the water, thereby reducing the consumption of the detergent and the residual quantity of the detergent on the clothes. In addition, the micro bubbles may also strike the soil on the laundry in the inner tub 31, and may adsorb foreign materials that generate the soil. Thus, the microbubbles also enhance the soil release performance of the washing machine. Alternatively, the micro-bubble jet may directly jet 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 having a micro bubble spray head of 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. A top deck plate 94 is provided on 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 the front side (the operation side facing the user) of the casing 91, and a viewing window 96 for allowing the user to see the inside of the washing machine is further provided on the door 97. A sealing window gasket 961 is also provided between the observation window 96 and the housing 91, and the sealing window gasket 961 is fixed to the housing 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 user's operation. An outer cylinder 92 and an inner cylinder 93 are disposed inside the housing 91. The inner cylinder 93 is positioned inside the outer cylinder 92. The inner cylinder 93 is connected to a motor 931 (e.g., a direct drive motor) via a drive shaft 932 and a bearing 933. On the upper portion of the rear side of the housing 91, there is provided a water inlet valve 51, 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 ejection head 52 is positioned near the upper portion of the front side of the housing 91 and below the control panel 95. Similar to the above embodiment, water is introduced into the micro bubble jet 52 through the water pipe via the water inlet valve 51 to generate micro bubble water containing a large amount of micro bubbles, and the micro bubble jet 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 52 may also directly jet 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 and enhance the cleaning ability of the washing machine.
Referring to fig. 3-5, fig. 3-5 are schematic diagrams of embodiments of the microbubble ejection head of the present invention, wherein fig. 3 is a top view of an embodiment of the microbubble ejection head of the present invention, fig. 4 is a left side view of an embodiment of the microbubble ejection head of the present invention, and fig. 5 is a front view of an embodiment of the microbubble ejection head of the present invention. As shown in FIGS. 3-5, in one or more embodiments, microbubble spray head 52 of the present invention includes an integral spray tube 521. Mounted on the outlet end 212 of the integral nozzle 521 is a micro-bubble mesh 522, the micro-bubble mesh 522 being configured to cut and mix the bubble water as it flows therethrough to produce micro-bubble water containing a plurality of micro-bubbles.
Referring to fig. 3-5, in one or more embodiments, integral nozzle 521 has an inlet end 211 and an outlet end 212. A network of microbubbles 522 is secured to the outlet end 212, while the inlet end 211 is adapted for connection to an external water source. Optionally, a drop stop 213 may be provided on the inlet end 211, such as a drop stop rib that bulges radially outwardly around the outer wall of the inlet end 211 or an annular groove structure that is recessed inwardly from the outer wall of the inlet end 211, to prevent the integral nozzle from falling out of the pipe to which it is connected that provides the water source.
With continued reference to fig. 3-5, in one or more embodiments, a first stationary mounting portion 214A, a second stationary mounting portion 214B, and a positioning portion 215 are provided on an outer wall of the integrated nozzle 521 for positioning and securing the microbubble spray head 52 in a predetermined position.
Referring to fig. 3 and 5, the first and second fixed mounting parts 214A and 214B are symmetrically positioned on the outer wall of the integrated nozzle 521 and are located at the middle of the integrated nozzle 521. The positioning portion 215 is an elongated rib protruding radially outward from the outer wall of the integral nozzle 521 and extending in the longitudinal direction of the integral nozzle 521. The first and second fixed 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 integral nozzle 521, and the positioning portion 215 may take other suitable forms.
In one or more embodiments, the first and second fixed 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 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 slipped over the outlet end 212 of the integrated nozzle 521 and secured to the outer wall of the integrated nozzle 521 by a securing means, such as a compression ring 523. Alternatively, the compression ring 523 may be a metal clip spring. Alternatively, a suitable material such as an elastic ring of elastic material (e.g., rubber ring) or plastic tie may be used to secure the micro-bubble mesh 522.
In one or more embodiments, the network of microbubbles 522 has at least one pore with a diameter on the order of microns. Preferably, the diameter of the pores is between 0 and 1000 microns; more preferably, the diameter of the pores is between 5 and 500 microns. In one or more embodiments, the network of microbubbles 522 can be a metal or polymeric network, or other suitable network of pores. The metal mesh includes, but is not limited to, stainless steel wire, nickel wire, brass wire, and the like. The polymer material net is generally a net having a microporous structure, which is formed by first forming a polymer material into filaments and then knitting the filaments. In a woven mesh, the weft yarns are densely arranged, which can be woven by the following weaving method: plain weave, twill weave, plain netherlands weave, twill netherlands weave, reverse netherlands weave. The polymer material net includes but is not limited to nylon (polyester) net, cotton fiber net, polypropylene fiber net, etc. For example, the micro-bubble mesh may be formed from a cotton fiber mesh. As the bubble water flows through the micro bubble network 522, the micro bubble network 522 produces a mixing and cutting action on the bubble water, thereby producing micro bubble water.
In one or more embodiments, the network of microbubbles 522 has a structure of at least two layers. The more layers of the micro-bubble network 522, the better the micro-bubble generation effect, but the resistance to water flow increases. Alternatively, the number of layers of the micro bubble network 522 is not less than 3 and not more than 12. In alternative embodiments, the number of layers of the micro bubble network 522 is not less than 3 and not greater than 5.
Fig. 6 is a cross-sectional view of a first embodiment of the microbubble spray head of the present invention taken along section line A-A of fig. 5. Referring to FIG. 6, in one or more embodiments, a reduced diameter tapered channel portion 217 is provided within an integral nozzle 521. The reduced diameter tapered passage portion 217 is positioned adjacent the inlet end 211 of the integrated spout 521. A first-stage diameter-reduced tapered passage 217b is formed in the diameter-reduced tapered passage portion 217 along the water flow direction C, and a nozzle hole 218 is provided on the downstream end of the diameter-reduced tapered passage portion 217. Orifice 218 communicates with an upstream first-stage reduced diameter tapered passage 217b and a downstream passage located within integral nozzle 521, respectively. A shorter second stage reduced diameter tapered passage 217C is also formed in the inlet end 211 of the integral nozzle 521 along the water flow direction C. The second-stage diameter-decreasing tapered passage 217c extends directly downstream to the first-stage diameter-decreasing tapered passage 217b, and the smallest diameter of the second-stage diameter-decreasing tapered passage 217c at its downstream end is larger than the largest diameter of the first-stage diameter-decreasing tapered passage 217 b. In alternative one or more embodiments, more than one stage of reduced diameter tapered channels, such as two, three, or more stages of reduced diameter tapered channels, may be formed in the reduced diameter tapered channel portion 217 along the water flow direction C.
With continued reference to fig. 6, a spoiler 217a is formed on the inner wall of the tapered passage portion 217 having a reduced diameter. In one or more embodiments, the spoiler 217a is at least one spoiler rib, such as a plurality of spoiler ribs, extending longitudinally along the inner wall of the tapered channel portion. In alternative embodiments, the spoiler 217a may be at least one radial protrusion, such as one or more cylindrical protrusions, on the inner wall of the tapered channel portion. Alternatively, the spoiler 217a may be formed only on the inner wall corresponding to the first-stage diameter-reduced tapered passage, or on the inner wall corresponding to each-stage diameter-reduced tapered passage, or on the inner wall corresponding to more than one-stage diameter-reduced tapered passage.
As shown in fig. 6, in one or more embodiments, the outer wall of reduced diameter tapered channel portion 217 is separated from the inner wall of integral nozzle 521, thereby forming annular gap 300 between the outer wall of reduced diameter tapered channel portion 217 and the inner wall of integral nozzle 521. The annular gap 300 aids in the mixing of the air and water streams, thereby creating more microbubbles.
As shown in fig. 6, the integral nozzle 521 is further formed with an air inlet 216. The suction opening 216 is formed in the wall of the integral nozzle 521 and is positioned adjacent to the orifice 218. The water flow enters from the inlet end 211 of the integral nozzle 521, flows through the first-stage tapered passage 217c with a smaller diameter, and then flows into the second-stage tapered passage 217b with a smaller diameter, so that the water is pressurized, and the turbulence part 217a can increase the turbulence of the water flow. The pressurized water flow is ejected from the nozzle hole 218 into the downstream passage of the integrated nozzle 521 and is rapidly expanded, thereby generating a negative pressure in the downstream passage of the integrated nozzle 521. Under the action of the negative pressure, a large amount of external air is sucked into the integrated nozzle 521 from the suction port 216 and mixed with the water flow therein to generate bubble water. The bubble water is cut and mixed as it passes through the network 522 of microbubbles, thereby generating microbubbles water.
Fig. 7 is a cross-sectional view of a second embodiment of the microbubble spray 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 of reduced diameter is positioned near the inlet end of the integral nozzle 521, but the suction port 216 is positioned near the outlet end of the integral nozzle 521, and thus near the fine bubble network 522. In this embodiment, the suction port 216 is still within the negative pressure range created by the orifice 218, so that when the water flow is expansively injected from the orifice 218 into the downstream passage of the integral nozzle 521, ambient air is drawn into the integral nozzle from the suction port 216 and mixes with the water flow under the negative pressure. The parts not mentioned in this embodiment are the same as the above-described embodiments.
Fig. 8 is a cross-sectional view of a third embodiment of the microbubble spray 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 passage portion 217 is positioned near the outlet end 212 of the integral nozzle 521, and the suction port 216 is positioned near the nozzle hole 218 located on the downstream end of the reduced diameter tapered passage portion 217. Second stage reduced diameter tapered passage 217c extends a longer distance from inlet end 211 of integral nozzle 521 to first stage reduced diameter tapered passage 217b within reduced diameter tapered passage portion 217. In this embodiment, no spoiler is provided in the tapered passage portion 217 of reduced diameter. The parts not mentioned in this embodiment are the same as the above-described embodiments.
Fig. 9 is a cross-sectional view of a fourth embodiment of the microbubble spray 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 passage portion 217 is also positioned near the outlet end 212 of the integral nozzle 521, and the suction port 216 is positioned near the nozzle hole 218 located on the downstream end of the reduced diameter tapered passage portion 217. Second stage reduced diameter tapered passage 217c extends a longer distance from inlet end 211 of integral nozzle 521 to first stage reduced diameter tapered passage 217b within reduced diameter tapered passage portion 217. In this embodiment, a spoiler portion 217a, specifically a plurality of longitudinal spoiler ribs extending along the inner wall of the reduced diameter tapered channel portion 217, is provided within the reduced diameter tapered channel portion 217. The parts not mentioned in this embodiment are the same as the above-described embodiments.
Thus far, the technical solution of the present invention has 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 protection of the present invention is not limited to these specific embodiments. Those skilled in the art may combine technical features from different embodiments and may make equivalent changes or substitutions to related technical features without departing from the principles of the present invention, and such changes or substitutions will fall within the scope of the present invention.
Claims (7)
1. A micro-bubble spray head is characterized by comprising an integrated spray pipe and a micro-bubble net fixed on the outlet end of the integrated spray pipe,
A diameter-reduced tapered passage portion is provided in the integral nozzle, at least one stage of diameter-reduced tapered passage is formed in the diameter-reduced tapered passage portion along a water flow direction, and a nozzle hole is provided on a downstream end of the diameter-reduced tapered passage portion, the nozzle hole being configured such that a water flow flowing through the at least one stage of diameter-reduced tapered passage is ejected from the nozzle hole and a negative pressure is generated in the integral nozzle; and
An air suction opening is arranged on the integral spray pipe, the air suction opening is positioned so that air can be sucked into the integral spray pipe through the air suction opening by means of the negative pressure and is mixed with the water flow to generate bubble water, the bubble water is changed into micro bubble water through the micro bubble network,
Wherein the reduced diameter tapered passage portion is positioned proximate an inlet end of the integral nozzle and the suction port is positioned proximate an outlet end of the integral nozzle.
2. The microbubble shower head as claimed in claim 1, wherein the microbubble mesh is sleeved on the outlet end of the integral nozzle and is fixed on the outer wall of the integral nozzle by a fixing device.
3. Microbubble shower head according to claim 1 or 2, characterized in that the network of microbubbles comprises at least 2 layers of network.
4. Microbubble shower head according to claim 1 or 2, characterized in that the network of microbubbles comprises a network of metal or polymer material.
5. The microbubble shower head as claimed in claim 1 or 2, wherein a spoiler is provided on an inner wall of the tapered channel portion of reduced diameter.
6. The microbubble spray head as claimed in claim 5, wherein the turbulator is at least one radial protrusion provided on or at least one turbulator rib extending longitudinally along the inner wall of the reduced diameter tapered channel portion.
7. A washing apparatus, characterized in that it comprises a micro-bubble jet according to any one of claims 1-6, said micro-bubble jet being arranged to generate micro-bubble water in said washing 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 |
| EP20897293.5A EP4071290B1 (en) | 2019-12-04 | 2020-11-30 | Micro-bubble spray head and washing device with same |
| PCT/CN2020/132826 WO2021109971A1 (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112899992A CN112899992A (en) | 2021-06-04 |
| CN112899992B true 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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| CN (1) | CN112899992B (en) |
Families Citing this family (1)
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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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| CN112899992A (en) | 2021-06-04 |
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