WO2021109971A1 - 微气泡喷头及具有该微气泡喷头的洗涤设备 - Google Patents

微气泡喷头及具有该微气泡喷头的洗涤设备 Download PDF

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Publication number
WO2021109971A1
WO2021109971A1 PCT/CN2020/132826 CN2020132826W WO2021109971A1 WO 2021109971 A1 WO2021109971 A1 WO 2021109971A1 CN 2020132826 W CN2020132826 W CN 2020132826W WO 2021109971 A1 WO2021109971 A1 WO 2021109971A1
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WIPO (PCT)
Prior art keywords
microbubble
spray head
water
integrated nozzle
nozzle
Prior art date
Application number
PCT/CN2020/132826
Other languages
English (en)
French (fr)
Inventor
赵志强
许升
Original Assignee
青岛海尔滚筒洗衣机有限公司
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201911229872.4A external-priority patent/CN112899992A/zh
Priority claimed from CN201911348666.5A external-priority patent/CN113106699A/zh
Priority claimed from CN201911399452.0A external-priority patent/CN113117541B/zh
Application filed by 青岛海尔滚筒洗衣机有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Priority to EP20897293.5A priority Critical patent/EP4071290A4/en
Publication of WO2021109971A1 publication Critical patent/WO2021109971A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/31Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3121Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/237Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2373Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/31Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31243Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40Static mixers
    • B01F25/45Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4523Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through sieves, screens or meshes which obstruct the whole diameter of the tube
    • B01F25/45231Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through sieves, screens or meshes which obstruct the whole diameter of the tube the sieves, screens or meshes being cylinders or cones which obstruct the whole diameter of the tube, the flow changing from axial in radial and again in axial
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/04Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0425Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/088Liquid supply arrangements

Definitions

  • the present invention relates to a microbubble generating device, in particular to a microbubble spray head and a washing equipment with the microbubble spray head.
  • Micro-bubble generally refers to tiny bubbles with a diameter of less than fifty microns ( ⁇ m) when the bubbles occur.
  • Micro-bubbles can also be called micro-/nano-bubble, micro-bubble or nano-bubble according to their diameter range. Because of its low buoyancy in the liquid, the microbubbles stay in the liquid for a long time. Moreover, the microbubbles will shrink in the liquid until they finally break, generating smaller nanobubbles. In this process, the bubble's rising speed becomes slow because it becomes smaller, resulting in high melting efficiency. When the microbubbles are broken, high pressure and high temperature heat are generated locally, which can destroy foreign objects such as organic matter floating in the liquid or attached to the object.
  • microbubbles have strong cleaning and purification capabilities.
  • microbubbles have been widely used in washing machines such as washing machines.
  • the Chinese invention patent application discloses a microbubble generator.
  • the microbubble generator includes a shell with open ends at both ends.
  • a water inlet pipe is connected to the first end of the shell.
  • a vortex column, a vortex column shell, a gas-liquid mixing tube and a gas-liquid mixing tube are sequentially arranged in the shell along the water flow direction. Hole mesh at the second end.
  • the gas-liquid mixing pipe is successively formed with a communicating accommodating cavity, an airflow part, an accelerating part and a circulation part from the head to the tail.
  • the volute shell and the vortex column located in it 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 in the direction of the accommodating cavity, forming a funnel-shaped protrusion , A gap is formed between the large mouth end of the funnel-shaped protrusion and the conical scroll shell for the air entering from the air inlet to enter the airflow part; the inner diameter of the accelerating part gradually increases toward the tail.
  • the water flows through the vortex column to form a high-speed rotating water flow inside the vortex shell.
  • the high-speed rotating water flow flows out of the outlet of the vortex column shell and enters the funnel-shaped space surrounded by the protrusion.
  • the negative pressure formed around the water flow draws the air from the air intake.
  • the mouth sucks and mixes with the water flow and then enters the accelerating part.
  • a pressure difference is formed, which accelerates the flow of water mixed with a large amount of air (bubble water), and bubbles
  • the water flows to the mesh through the flow part, and the bubbly water is cut by the pores in the pore mesh and mixed to produce microbubble water containing a large number of microbubbles.
  • the Chinese invention patent application also discloses a microbubble generator.
  • the microbubble generator includes a shell with open ends at both ends.
  • a water inlet pipe is connected to the first end of the shell.
  • a booster tube, a bubble generating tube and a hole positioned at the second end of the shell are sequentially arranged in the shell along the water flow direction. network.
  • the bubble generating tube is sequentially formed with an accommodating cavity, a gas-liquid mixing part, and an expansion guide part from the first end to the second end.
  • a pressure-increasing tube is received in the accommodating cavity, and the pressure-increasing pipe has a tapered end facing the accommodating cavity; a tapered gas-liquid that gradually decreases in size along the first end to the second end is formed in the gas-liquid mixing portion Mixing space; the expansion guide portion is formed with an expansion guide space that increases in size along the direction from the first end to the second end.
  • the tube wall of the bubble generating tube is provided with an air inlet channel, and a gap is formed between the inner wall of the gas-liquid mixing part and the outer wall of the booster tube to communicate with the air inlet channel on the tube wall of the bubble generating tube, and the water outlet of the booster tube Place in the water inlet of the gas-liquid mixing section.
  • the water flows through the booster pipe and is pressurized to form a high-speed water flow.
  • the high-speed water flows out of the water outlet of the booster pipe and enters the gas-liquid mixing chamber and forms a negative pressure in the gas-liquid mixing chamber. This negative pressure passes a large amount of air through the air inlet channel.
  • the water is sucked into the water stream and mixed with air and water to form bubble water.
  • the bubble water flows from the expansion guide to the mesh, and the bubble water is mixed and cut by the pores of the mesh to form microbubble water.
  • Both of the above two types of microbubble generators have at least five independent components: housing, water inlet pipe, vortex column and volute or booster pipe, gas-liquid mixing pipe or bubble generating pipe, and mesh. These components need to design a specific matching or connection structure, so that all the components can be assembled together and ensure that the assembled microbubble generator can work reliably. Therefore, the components and structure of such a microbubble generator are relatively complicated, and the manufacturing cost is also high.
  • the present invention provides a micro-bubble spray head.
  • the microbubble spray head includes an integrated nozzle and a microbubble filter bag fixed in the outlet end of the integrated nozzle, and a venturi structure is formed in the integrated nozzle,
  • an air suction port is provided on the integrated nozzle, so that air is sucked into the integrated nozzle through the suction port by the negative pressure produced by the venturi structure and is connected to the integrated nozzle.
  • the microbubble filter mesh bag includes an opening, a bottom, and a side wall between the opening and the bottom, the opening faces the venturi structure, and is connected to the side wall and the side wall.
  • a water outlet space is formed between the inner walls of the outlet end so that the bubble water can pass through the side wall and the bottom to form micro bubble water.
  • the microbubble filter mesh bag is formed by at least two layers of filter mesh.
  • the microbubble filter mesh bag is made of a metal filter mesh or a polymer material mesh.
  • the microbubble filter mesh bag is fixed on the inner wall of the outlet end by a circlip.
  • the venturi tube structure is composed of a tapered channel portion with a reduced diameter, and at least one stage of a reduced diameter cone is formed in the tapered channel portion with a reduced diameter along the water flow direction.
  • Shaped channel, and a spray hole is provided on the downstream end of the tapered channel portion with a reduced diameter, so that the water stream pressurized through the at least one-stage diameter reduced tapered channel can be sprayed from the spray hole and Negative pressure is generated in the integrated nozzle.
  • the suction port is positioned close to the spray hole and/or at the outlet end on.
  • a first suction port and a second suction port are provided on the integrated nozzle, the first suction port is positioned close to the nozzle hole, and the The second suction port is positioned on the outlet end to help suck more outside air.
  • the suction port when the spray hole is positioned close to the outlet end, the suction port is positioned close to the spray hole.
  • the venturi tube structure can be any one of the following structures: a structure having a plurality of mutually parallel tapered channels with reduced diameters along the water flow direction, and A structure with a single orifice in the direction of water flow, a structure with multiple orifices parallel to each other along the direction of water flow, a structure with a single channel that first decreases in diameter and then becomes larger along the direction of water flow, or
  • the water flow direction has a structure of a plurality of channels parallel to each other in which the diameter first becomes smaller and then becomes larger.
  • the microbubble spray head includes an integrated nozzle and a microbubble filter bag fixed in the outlet end of the integrated nozzle.
  • a venturi structure is formed in the integrated nozzle, and an air suction port is provided on the integrated nozzle, so that a large amount of outside air can be sucked into the integrated nozzle through the suction port by the negative pressure made by the venturi structure.
  • the pipe is mixed with the water flow in the integrated nozzle to produce bubbly water.
  • the microbubble filter bag includes an opening, a bottom, and a side wall between the opening and the bottom.
  • the opening faces the venturi structure, and a water outlet space is formed between the side wall and the inner wall of the outlet end, thereby allowing bubble water in the integrated nozzle It can pass through the sidewall and bottom of the microbubble filter bag to form microbubble water.
  • the microbubble filter mesh bag not only participates in mixing and cutting the bubble water at its bottom, but also participates in mixing and cutting the bubble water on its larger sidewall, so the output of microbubble water will be significantly increased.
  • the venturi structure designed in the integrated nozzle and the microbubble filter bag fixed in the outlet end of the integrated nozzle are used to produce a large number of microbubbles containing a large number of microbubbles. The function of sparkling water.
  • the microbubble spray head of the present invention not only has very good microbubble water generating performance, but also the number of parts of the microbubble spray head is greatly reduced, thus eliminating the need for The need to design and manufacture the connecting structure between the components has significantly reduced the manufacturing cost of the entire microbubble spray head.
  • the microbubble filter mesh bag is formed by at least two layers of filter mesh to ensure the generation of microbubbles with a smaller diameter.
  • the venturi structure can take different forms, for example, it can be a tapered channel portion with a reduced diameter, or one of the following structures: a plurality of tapered cones with reduced diameters parallel to each other along the water flow direction
  • the structure of the channel has a structure with a single orifice along the direction of water flow, a structure with multiple orifices parallel to each other along the direction of water flow, and a structure with a single channel that first decreases in diameter and then becomes larger along the water flow direction, or Along the direction of the water flow, there are a plurality of parallel channels with a diameter that first decreases and then increases.
  • the present invention provides a micro-bubble spray head.
  • the microbubble spray head includes an integrated nozzle and a microbubble bubbler fixed on the outlet end of the integrated nozzle, and a diameter-reducing cone is provided in the integrated nozzle
  • the tapered channel portion with a reduced diameter at least one stage of a tapered channel with a reduced diameter is formed along the water flow direction, and a spray hole is formed on the downstream end of the tapered channel with a reduced diameter, so
  • the nozzle hole is configured to generate a negative pressure in the integrated nozzle after the water stream pressurized through the at least one-stage diameter tapered channel is ejected from the nozzle hole; and the integrated nozzle is provided
  • the suction port is positioned close to the nozzle hole so that air is sucked into the integrated nozzle through the suction port by the
  • the at least one-stage diameter-reduced tapered passage includes a first-stage diameter-reduced tapered passage and a second-stage diameter-reduced tapered passage.
  • a spoiler is formed on the inner wall of the tapered channel portion with a reduced diameter.
  • the diameter of the spray hole is in the range of 0-6 mm.
  • the at least two-stage filter includes a first-stage filter and a second-stage filter
  • the first-stage filter includes at least one layer of filter
  • the first The number of layers of the second-level filter is less than the number of layers of the second-level filter.
  • the microbubble bubbler includes a net frame to fix the at least two-stage filter together.
  • the net frame is directly fixed on the outlet end of the integrated spray pipe.
  • the microbubble bubbler further includes a fixing member and the grid frame is fixed to the outlet end of the integrated nozzle through the fixing member.
  • At least one of the net frame and the fixing member is provided with an overflow port.
  • the microbubble spray head includes an integrated nozzle and a microbubble bubbler installed on the outlet end of the integrated nozzle.
  • a tapered channel with a reduced diameter is provided in the integrated nozzle, and at least one level of a tapered channel with a reduced diameter is formed in the tapered channel with a reduced diameter along the water flow direction.
  • the water flow is pressurized and accelerated.
  • a nozzle hole is formed at the downstream end of the tapered passage portion with a reduced diameter. The pressurized water stream will rapidly expand and spray out from the nozzle hole, thus causing negative pressure in the downstream passage of the integrated nozzle.
  • a suction port is provided on the integrated nozzle, and the suction port is positioned close to the nozzle.
  • the microbubble bubbler includes at least two stages of filter screens spaced a predetermined distance from each other along the direction of the water flow, so that the bubble water can be cut and mixed through each stage of the filter screen in turn, thereby more effectively producing microbubble water containing a large number of microbubbles .
  • the function of generating microbubbles is realized by a tapered channel portion designed in the integrated nozzle with a reduced diameter and a microbubble bubbler fixed at the outlet end of the integrated nozzle. Therefore, compared with the prior art microbubble generator with many parts, although the microbubble spray head of the present invention has a simple structure and thus significantly reduces the manufacturing cost, it has excellent microbubble generation performance.
  • more than one-stage tapered channels with a reduced diameter can provide a higher degree of pressurization and acceleration to the water flow.
  • the spoiler can help the water flow to mix the sucked air more effectively downstream by increasing the turbulence of the water.
  • the design of the overflow port can prevent excess water from flooding the suction port, thereby preventing air from being sucked into the integrated nozzle due to the blocking of the suction port, and therefore microbubble water cannot be generated.
  • the present invention provides a micro-bubble spray head.
  • the third embodiment it includes an integrated nozzle and a microbubble net fixed on the outlet end of the integrated nozzle, and a tapered channel portion with a reduced diameter is provided in the integrated nozzle.
  • At least one stage of a tapered passage with a reduced diameter is formed in the tapered passage portion with a reduced diameter along the water flow direction, and a spray hole is formed on the downstream end of the tapered passage with a reduced diameter, and the spray hole is arranged such that The water flowing through the at least one-stage diameter tapered channel is ejected from the nozzle hole and generates a negative pressure in the integrated nozzle; and an air suction port is provided on the integrated nozzle, so The suction port is positioned so that air can be sucked into the integrated nozzle through the suction port by the negative pressure and mixed with the water flow to produce bubble water, and the bubble water becomes Micro-bubble water.
  • the microbubble net is sleeved on the outlet end of the integrated nozzle and fixed on the outer wall of the integrated nozzle by a fixing device.
  • the microbubble net includes at least two layers of nets.
  • the microbubble mesh includes a metal mesh or a polymer material mesh.
  • the tapered channel portion with reduced diameter is positioned close to the inlet end of the integrated nozzle, and the suction port is positioned close to the nozzle hole.
  • the tapered channel portion with reduced diameter is positioned close to the inlet end of the integrated nozzle, and the suction port is positioned close to the outlet of the integrated nozzle end.
  • the tapered channel portion with reduced diameter is positioned close to the outlet end of the integrated nozzle, and the suction port is positioned close to the nozzle hole.
  • a spoiler is provided on the inner wall of the tapered channel portion with a reduced diameter.
  • the spoiler is at least one radial protrusion provided on the inner wall of the tapered channel portion with a reduced diameter or along the tapered channel with a reduced diameter At least one spoiler rib extending longitudinally from the inner wall of the part.
  • the microbubble spray head includes an integrated nozzle and a microbubble net fixed on the outlet end of the integrated nozzle.
  • a tapered channel with a reduced diameter is provided in the integrated nozzle, and at least one level of a tapered channel with a reduced diameter is formed in the tapered channel with a reduced diameter along the water flow direction, and downstream of the tapered channel with a reduced diameter There are spray holes on the end.
  • the water flow is pressurized (accelerated) in the at least one-stage diameter-reduced tapered channel, and the pressurized water flow is rapidly expanded from the nozzle hole and sprayed into the downstream channel in the integrated nozzle and generates negative pressure in the downstream channel. Pressure.
  • the suction port is in the range of negative pressure. Therefore, under the action of negative pressure, a large amount of air is sucked into the integrated nozzle from the outside through the suction port and mixed with water. And produce sparkling water containing a lot of bubbles. The bubble water then flows through the microbubble net located on the outlet end of the integrated nozzle to be cut and mixed, thereby generating microbubble water containing a large number of microbubbles.
  • the function of generating microbubbles is realized by a tapered channel with a reduced diameter designed in the integrated nozzle and a microbubble net fixed at the outlet end of the integrated nozzle.
  • the microbubble spray head of the present invention not only has a good performance of generating microbubbles, but also the number of parts of the microbubble spray head is greatly reduced, thus eliminating the need for design
  • the demand for the connection structure between the components and the manufacturing components has significantly reduced the manufacturing cost of the entire microbubble spray head.
  • a spoiler is provided on the inner wall of the tapered channel part with a reduced diameter. These turbulences can help the water flow downstream to mix the sucked air more effectively by increasing the turbulence of the water.
  • the present invention also provides a washing device, which includes any of the above-mentioned micro-bubble spray heads, and the micro-bubble spray head is configured to generate micro-bubble water in the washing device.
  • the microbubble nozzle generates microbubble water containing a large number of microbubbles in the washing equipment, so that not only can the washing capacity of the washing equipment be improved, but also the amount of detergent can be reduced and the residual amount of detergent in, for example, laundry can be reduced.
  • Figure 1 is a schematic structural view of an embodiment of a washing device including a microbubble spray head according to the present invention
  • FIG. 2 is a schematic structural view of another embodiment of a washing device including a microbubble spray head according to the present invention.
  • Figure 3 is a top view of an example of the microbubble spray head of the present invention in the first embodiment
  • Figure 4 is a front view of an example of the microbubble spray head of the present invention in the first embodiment
  • FIG. 5 is a cross-sectional view of the first embodiment of the microbubble spray head of the present invention in the first embodiment taken along the section line A-A of FIG. 4;
  • FIG. 6 is a cross-sectional view of a second embodiment of the microbubble spray head of the present invention in the first embodiment taken along the section line A-A of FIG. 4;
  • FIG. 7 is a cross-sectional view of a third embodiment of the microbubble spray head of the present invention in the first embodiment taken along the section line A-A of FIG. 4;
  • FIG. 8 is a cross-sectional view of a fourth embodiment of the microbubble spray head of the present invention in the first embodiment taken along the section line A-A of FIG. 4;
  • FIG. 9 is a perspective schematic view of an example of the microbubble spray head of the present invention in the second embodiment.
  • FIG. 10 is a plan view of an example of the microbubble spray head of the present invention shown in FIG. 9 in the second embodiment;
  • FIG. 11 is a left side view of the example of the microbubble spray head of the present invention shown in FIG. 9 in the second embodiment;
  • Fig. 12 is a front view of an example of the microbubble spray head of the present invention shown in Fig. 9 in the second embodiment;
  • Fig. 13 is a cross-sectional view of an example of the microbubble spray head of the present invention in the second embodiment taken along the section line A-A of Fig. 12;
  • FIG. 14 is a cross-sectional view of an example of the microbubble spray head of the present invention in the second embodiment taken along the section line B-B of FIG. 12;
  • FIG. 15 is a perspective exploded view of the first embodiment of the microbubble spray head of the present invention in the second embodiment
  • Figure 16 is a perspective exploded view of a second embodiment of the microbubble spray head of the present invention in the second embodiment
  • Figure 17 is a top view of an example of the microbubble spray head of the present invention in the third embodiment.
  • Figure 18 is a left side view of an example of the microbubble spray head of the present invention in the third embodiment
  • Figure 19 is a front view of an example of the microbubble spray head of the present invention in the third embodiment.
  • FIG. 20 is a cross-sectional view of the first embodiment of the microbubble spray head of the present invention in the third embodiment taken along the section line A-A of FIG. 19;
  • 21 is a cross-sectional view of the second embodiment of the microbubble spray head of the present invention in the third embodiment taken along the section line A-A of FIG. 19;
  • FIG. 22 is a cross-sectional view of the third embodiment of the microbubble spray head of the present invention in the third embodiment taken along the section line A-A of FIG. 19;
  • Fig. 23 is a cross-sectional view of the fourth embodiment of the microbubble spray head of the present invention in the third embodiment taken along the section line A-A of Fig. 19.
  • Pulsator washing machine 11. Box body; 12. Pan seat; 13; Upper cover; 14. Foot of the pulsator washing machine; 21. Outer barrel; 31. Inner barrel; 311. Dehydration hole; 32. Pulsator; 33 , The drive shaft of the pulsator washing machine; 34, the motor of the pulsator washing machine; 35, the balance ring; 41, the drain valve; 42, the drain pipe; 51, the water inlet valve; 9, the drum washing machine; 91, the shell; 92, the outer tube 93. Inner tube; 931. Motor of drum washing machine; 932. Drive shaft of drum washing machine; 933. Bearing; 94. Upper panel; 95. Control panel; 96. Observation window; 97. Door body; 98. Footing.
  • First embodiment 52, microbubble nozzle; 521, integrated nozzle; 522, microbubble filter bag; 523, circlip; 524, water outlet space; 211, inlet end; 212, outlet end; 212a, outlet end Inner wall; 213, stop part; 214A, first fixed installation part; 214B, second fixed installation part; 215, positioning part; 216, suction port; 216a, first suction port; 216b, second suction port 217, tapered channel with reduced diameter; 217a, tapered channel with reduced diameter in the first stage; 217b, tapered channel with reduced diameter in second stage; 218, nozzle hole; 219, spoiler; 221, microbubbles
  • the second embodiment 52, microbubble nozzle; 521, integrated nozzle; 522, microbubble bubbler; 211, inlet end; 212, outlet end; 212a, external thread; 212b, card slot; 213, stop 214A, the first fixed mounting part; 214B, the second fixed mounting part; 215, the positioning part; 216, the suction port; 217, the nozzle hole; 218, the spoiler part; 219, the tapered channel part with reduced diameter; 219a, the first-stage diameter-reduced tapered channel; 219b, the second-stage diameter-reduced tapered channel; 221, filter screen; 221a, first-stage filter screen; 221b, second-stage filter screen; 222; fixing parts; 223.
  • the grid frame; 226. The overflow port of the grid frame; 300. Annular gap.
  • the third embodiment 52, micro-bubble nozzle; 521, integrated nozzle; 522, micro-bubble net; 523, pressure ring; 211, inlet end; 212, outlet end; 213, stop part; 214A, first fixing Mounting part; 214B, second fixed mounting part; 215, positioning part; 216, suction port; 217, tapered channel part with reduced diameter; 217a, spoiler part; 217b, first-stage tapered channel with reduced diameter; 217c, the second-stage diameter reduced tapered channel; 218, nozzle hole; 300, annular gap.
  • the terms “installation”, “setting”, and “connection” should be understood in a broad sense, for example, it may be a fixed connection or It is a detachable connection or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two components.
  • the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.
  • the present invention provides a microbubble spray head.
  • the microbubble spray head includes an integrated nozzle 521 and a microbubble filter bag 522 fixed in the outlet end 212 of the integrated nozzle 521 (see FIGS. 3-8).
  • a venturi structure is provided in the integrated nozzle 521.
  • An air suction port 216 is provided on the integrated nozzle, so that air can be sucked into the integrated nozzle 521 through the suction port 216 by the negative pressure made by the venturi structure and mixed with the water flow in the integrated nozzle 521. Bubble water.
  • the microbubble filter bag 522 includes an opening 223, a bottom 221, and a side wall 222 located between the opening 223 and the bottom 221.
  • the opening 223 faces the venturi structure, and water is formed between the side wall 222 and the inner wall 212a of the outlet end 212
  • the space 524 allows the bubble water to pass through the side wall 222 and the bottom 221 to form micro bubble water. Therefore, compared with the prior art micro-bubble generator, the number and structure of the micro-bubble spray head of the present invention are greatly simplified, and the manufacturing cost of the micro-bubble spray head is also greatly reduced. At the same time, the micro-bubble spray head has very good characteristics. Micro-bubble water generation performance.
  • the venturi structure can take many different forms of structure, such as a tapered channel portion 217 with a reduced diameter (as shown in FIGS. 5-8).
  • the venturi structure includes, but is not limited to, a structure having a plurality of tapered channels with reduced diameters parallel to each other along the water flow direction C, a structure having a single orifice along the water flow direction C, and a structure having a single orifice along the water flow direction C.
  • the structure of multiple orifices parallel to each other, along the water flow direction C has a single channel structure where the diameter first decreases and then increases, or along the water flow direction C has multiple parallel channels where the diameter first decreases and then increases Structure (not shown in the figure).
  • the microbubble spray head of the present invention can be applied in the field of washing, sterilization, or other fields that require microbubbles.
  • the micro-bubble spray head of the present invention can be applied to washing equipment, and can also be integrated into sanitary faucets or showers.
  • the present invention also provides a washing device, which includes the microbubble spray head 52 of the present invention.
  • the micro-bubble spray head 52 is configured to generate micro-bubble water in the washing device.
  • the microbubble nozzle 52 generates microbubble water containing a large number of microbubbles in the washing equipment, which can not only improve the washing capacity of the washing equipment, but also reduce the amount of detergent and the residual amount of detergent in, for example, clothes, thereby not only Conducive to the health of users, but also improve the user experience.
  • Fig. 1 is a schematic structural diagram of an embodiment of a washing device with a microbubble spray head of the present invention.
  • the washing device is a pulsator washing machine 1.
  • the washing device may be a drum washing machine, an integrated dryer, or the like.
  • the pulsator washing machine 1 (hereinafter referred to as the washing machine) includes a cabinet 11.
  • a foot 14 is provided at the bottom of the box 11.
  • the upper part of the box body 11 is provided with a disk seat 12, and the disk seat 12 is pivotally connected with an upper cover 13.
  • An outer tub 21 as a tub is provided in the box 11.
  • the inner tub 31 is provided in the outer tub 21, the bottom of the inner tub 31 is provided with a pulsator 32, the lower part of the outer tub 21 is fixed with a motor 34, the motor 34 is drivingly connected to the pulsator 32 through a transmission shaft 33, and is provided on the side wall of the inner tub 31
  • the drain valve 41 is provided on the drain pipe 42, and the upstream end of the drain pipe 42 communicates with the bottom of the outer tub 21.
  • the washing machine also includes a water inlet valve 51 and a micro-bubble spray head 52 communicating with the water inlet valve 51, and the micro-bubble spray head 52 is installed on the top of the outer tub 21. Water enters the microbubble spray head 52 through the water inlet valve 51 to produce microbubble water containing a large number of microbubbles. The microbubble spray head 52 sprays the microbubble water into the detergent box to mix with the detergent, and then enters the inner tub 31 through the detergent box. Used for laundry washing.
  • the micro-bubbles in the inner tub 31 will also hit the stains on the clothes, and will absorb the foreign matter that generates the stains. Therefore, the microbubbles also enhance the decontamination performance of the washing machine.
  • the microbubble spray head can also directly spray microbubble water carrying a large number of microbubbles 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.
  • FIG. 2 is a schematic structural diagram of another embodiment of a washing device with a microbubble spray head of the present invention.
  • the washing device is a drum washing machine 9.
  • the drum washing machine 9 includes a housing 91 and a foot 98 located at the bottom of the housing.
  • An upper deck 94 is provided on the top of the housing 91.
  • the front side of the housing 91 (the side facing the user) is provided with a door body 97 that allows the user to load laundry into the drum washing machine, and the door body 97 is also provided with an observation window 96 that can see the inside of the washing machine.
  • 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 on the housing 91.
  • the control panel 95 of the drum washing machine 9 is arranged on the upper part of the front side of the housing 91 to facilitate the user's operation.
  • An outer tube 92 and an inner tube 93 are arranged inside the housing 91.
  • the inner tube 93 is positioned inside the outer tube 92.
  • the inner cylinder 93 is connected to a motor 931 (for example, a direct drive motor) through a transmission shaft 932 and a bearing 933.
  • a water inlet valve 51 is provided on the upper part of the rear side of the housing 91, and the water inlet valve 51 is connected to the microbubble spray head 52 through a water pipe. As shown in FIG. 2, the microbubble spray head 52 is positioned close to the upper part of the front side of the housing 91 and is located below the control panel 95.
  • the microbubble spray head 52 first sprays the microbubble water into the detergent box to mix with the detergent, and then It enters the inner tube 93 through the detergent box and is used for laundry washing.
  • the microbubble spray head 52 can also directly spray microbubble water carrying a large number of microbubbles 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.
  • Figures 3 and 4 are schematic diagrams of an embodiment of the microbubble spray head of the present invention, wherein Figure 3 is a top view of an embodiment of the microbubble spray head of the present invention, and Figure 4 is a microbubble spray head of the present invention Front view of the embodiment.
  • the microbubble spray head 52 of the present invention includes an integrated spray tube 521.
  • a micro-bubble filter bag 522 is installed in the outlet end 212 of the integrated nozzle 521.
  • the micro-bubble filter bag 522 is configured to cut and mix the bubble water while the bubble water flows through it to produce a large number of microbubbles containing a large number of microbubbles. Bubble water.
  • the integrated nozzle 521 has an inlet end 211 and an outlet end 212.
  • a microbubble filter bag 522 is fixed in the outlet end 212, and the inlet end 211 is used to connect to an external water source.
  • an anti-drop portion 213 may be provided on the inlet end 211, such as an anti-drop rib that bulges radially outward around the outer wall of the inlet end 211 or an annular groove structure in which the outer wall of the inlet end 211 is recessed inward, which can prevent The integrated nozzle 521 falls off from the water supply pipe to which it is connected.
  • the outer wall of the integrated nozzle 521 is provided with a first fixed mounting portion 214A, a second fixed mounting portion 214B, and a positioning portion 215 for The microbubble spray head 52 is positioned and fixed to a predetermined position.
  • the first fixed mounting portion 214A and the second fixed mounting portion 214B are symmetrically positioned on the outer wall of the integrated nozzle 521 and located in the middle of the integrated nozzle 521.
  • the positioning portion 215 is a long rib that protrudes radially outward from the outer wall of the integrated nozzle 521 and extends along the longitudinal direction of the integrated nozzle 521.
  • the first fixed installation portion 214A and the second fixed installation portion 214B are distributed on both sides of the positioning portion 215.
  • only one fixed installation part is provided on the integrated nozzle 521, and the positioning part 215 may also take other suitable forms.
  • the first and second fixed mounting portions 214A, 214B have a screw hole structure to fix the spray head 52 to the target position by screws.
  • the fixed installation part can adopt any suitable connection structure, such as a snap connection structure, a welding connection structure, and the like.
  • Fig. 5 is a cross-sectional view of the first embodiment of the microbubble spray head of the present invention taken along the section line A-A of Fig. 4.
  • a tapered channel portion 217 with a reduced diameter is provided in the integrated nozzle 521.
  • a first-stage reduced-diameter tapered passage 217a and a second-stage reduced-diameter tapered passage 217b are formed along the water flow direction C in the reduced-diameter tapered passage portion 217, and downstream of the reduced-diameter tapered passage portion 217
  • a spray hole 218 is provided on the end.
  • the nozzle hole 218 is positioned close to the outlet end 212 of the integrated nozzle tube 521.
  • the nozzle hole 218 directly communicates with the upstream second-stage tapered passage 217 b with a reduced diameter and the downstream passage in the integrated nozzle 521.
  • the first-stage reduced-diameter tapered passage 217a extends downstream from the inlet end 211 of the integrated nozzle 521 to the second-stage reduced-diameter tapered passage 217b, and the first-stage reduced-diameter tapered passage 217a is located downstream thereof
  • the minimum diameter of the end is larger than the maximum diameter of the second-stage diameter-reducing tapered passage 217b.
  • either one-stage diameter-reduced tapered channel may be formed, or more than two-stage diameter-reduced tapered channels may be formed.
  • a tapered channel for example, a tapered channel with a reduced diameter of three or more stages.
  • tapeered channel portion with reduced diameter refers to a structure in which the diameter or cross section of the channel formed inside the portion gradually becomes smaller along the water flow direction, so that the channel has a substantially tapered shape.
  • the outer wall of the portion of the tapered channel portion 217 with reduced diameter corresponding to the second-stage reduced diameter tapered channel 217b is separated from the inner wall of the integrated nozzle 521, thus, an annular gap 300 is formed between the outer wall of this part and the inner wall of the integrated nozzle 521.
  • the annular gap 300 facilitates the mixing of air and water, thereby generating more microbubbles.
  • an air suction port 216 is also formed on the integrated nozzle 521.
  • the suction port 216 is formed on the tube wall of the integrated nozzle 521 and is located close to the nozzle hole 218 and therefore also close to the outlet end 212.
  • the water flow enters from the inlet end 211 of the integrated nozzle 521, first flows through the first-stage tapered channel 217a with reduced diameter, and then flows into the second-stage tapered channel 217b with reduced diameter, thereby being pressurized.
  • the pressurized water stream is ejected from the nozzle hole 218 into the downstream passage of the integrated nozzle 521 and is rapidly expanded, so a negative pressure is generated in the downstream passage of the integrated nozzle 521.
  • the microbubble filter bag 522 includes a bottom 221, an opening 223, and an annular side wall 222 extending between the opening 223 and the bottom 221.
  • the opening 223 faces the inside of the integrated nozzle 521, faces the nozzle hole 218 and surrounds the nozzle hole 218.
  • the bottom 221 is exposed to the outside of the integrated nozzle 521.
  • the side wall 222 may extend outward beyond the end surface of the outlet end 212.
  • a predetermined annular gap is left between the side wall 222 and the inner wall 212 a of the outlet end 212, and the annular gap forms a water outlet space 524.
  • the water jet sprayed from the spray hole 218 can therefore rapidly expand in the microbubble filter bag 218 and mix with the large amount of air sucked in through the suction port 216 to form bubble water. Due to the existence of the water outlet space 524, the bubble water can not only pass through the bottom 221 of the microbubble filter bag 522, but also can pass through the side wall 222 of the microbubble filter bag 55, so it is blocked by the meshes of both the bottom 221 and the side wall 222. Mixing and cutting produces a large amount of micro-bubbly water.
  • the microbubble filter mesh bag 522 is fixed on the inner wall 212a of the outlet end 212 by a circlip 523, such as a metal circlip.
  • the microbubble filter mesh bag 522 can also be fixed on the inner wall of the integrated nozzle 521 by other means, such as bonding or welding.
  • the microbubble filter mesh bag 522 is formed by at least two layers of filter mesh.
  • the more layers of the filter the better the effect of generating microbubbles, but the resistance of the water flow also increases.
  • the number of filter mesh layers of the microbubble filter mesh bag 522 is greater than or equal to 3 and less than or equal to 12.
  • the number of filter mesh layers of the microbubble filter mesh bag 522 is greater than or equal to 3 and less than or equal to 5.
  • the multi-layer filter can ensure that the bubbly water is cut more finely and mixed to a greater degree, so it is possible to produce micro-bubbles with a smaller diameter.
  • the filter of the microbubble filter bag 522 has at least one pore with a diameter of micrometers.
  • the diameter of the pores is between 0 and 1000 microns; more preferably, the diameter of the pores is between 5 and 500 microns.
  • the microbubble filter mesh bag 522 may be made of metal mesh or polymer material mesh, or made of other suitable mesh structures.
  • the metal mesh includes, but is not limited to, stainless steel wire, nickel wire, brass wire and other materials.
  • the polymer material net usually refers to a net with a microporous structure that is made by first making a polymer material into a wire, and then weaving the wire into a microporous structure.
  • the wefts are arranged densely, which can be woven by the following weaving methods: plain weave, twill weave, plain Dutch weave, twill Dutch weave, or reverse Dutch weave.
  • Polymer material nets include but are not limited to nylon (polyester) nets, cotton nets, polypropylene nets and the like.
  • the filter screen may be formed of cotton mesh.
  • Fig. 6 is a cross-sectional view of the second embodiment of the microbubble spray head of the present invention taken along the section line A-A of Fig. 4.
  • a tapered channel portion 217 with a reduced diameter is also formed in the integrated nozzle 521.
  • a first-stage reduced-diameter tapered passage 217a and a second-stage reduced-diameter tapered passage 217b are formed along the water flow direction C in the reduced-diameter tapered passage portion 217, and downstream of the reduced-diameter tapered passage portion 217
  • a spray hole 218 is provided on the end.
  • the nozzle hole 218 is located close to the outlet end 212 of the integrated nozzle 521, and the suction port 216 is located close to the nozzle hole 218.
  • a spoiler 219 is formed on the inner wall of the tapered channel portion 217 with a reduced diameter corresponding to the second-stage tapered channel 217b to increase the turbulence of the water flow, thereby improving the water and air flow.
  • the degree of mixing is at least one spoiler rib, such as a plurality of spoiler ribs, extending longitudinally along the inner wall of the tapered channel with a reduced diameter.
  • the spoiler 219 may be at least one radial protrusion on the inner wall of the tapered channel with the reduced diameter, for example, one or more cylindrical protrusions.
  • the spoiler 219 may be formed only on the inner wall of the tapered channel corresponding to the first-stage diameter reduction, or on the inner wall of the tapered channel corresponding to each stage of the reduction in diameter, or formed on the inner wall corresponding to more than one-stage diameter. On the inner wall of the tapered channel.
  • the other unmentioned parts of this embodiment are the same as the above-mentioned embodiment.
  • Fig. 7 is a cross-sectional view of the third embodiment of the microbubble spray head of the present invention taken along the section line A-A of Fig. 4.
  • a tapered channel portion 217 with a reduced diameter is also formed in the integrated nozzle 521.
  • a first-stage reduced-diameter tapered passage 217a and a second-stage reduced-diameter tapered passage 217b are formed along the water flow direction C in the reduced-diameter tapered passage portion 217, and downstream of the reduced-diameter tapered passage portion 217
  • a spray hole 218 is provided on the end.
  • the nozzle hole 218 is located close to the inlet end 211 of the integrated nozzle 521, but the suction port 216 is located close to the outlet end 212 of the integrated nozzle hole 521, and therefore also close to the microbubble filter bag 522.
  • the suction port 216 is still in the negative pressure range created by the nozzle hole 218. Therefore, when the water flow expands from the nozzle hole 218 into the downstream channel of the integrated nozzle 521, the outside air is in Under the action of negative pressure, it is sucked into the integrated nozzle 521 from the suction port 216 and mixed with the water flow.
  • a spoiler 219 is also formed on the inner wall of the tapered channel portion 217 with reduced diameter corresponding to the second-stage reduced diameter tapered channel 217b, for example, a plurality of spoilers extending longitudinally along the inner wall.
  • Flow tendons The parts not mentioned in this embodiment are the same as the above-mentioned embodiment.
  • Fig. 8 is a cross-sectional view of the fourth embodiment of the microbubble spray head of the present invention taken along the section line A-A of Fig. 4.
  • a tapered channel portion 217 with a reduced diameter is also formed in the integrated nozzle 521.
  • a first-stage smaller-diameter tapered passage 217a and a second-stage smaller-diameter tapered passage 217b are formed in the reduced-diameter tapered passage portion 217 along the water flow direction C, and downstream of the smaller-diameter tapered passage portion 217
  • a spray hole 218 is provided on the end.
  • the nozzle hole 218 is located close to the inlet end 211 of the integrated nozzle 521.
  • the integrated nozzle 521 is provided with a first suction port 216a and a second suction port 216b.
  • the first suction port 216a is located close to the nozzle hole 218, and therefore close to the inlet end 211.
  • the second suction port 216b is located close to the outlet end 212 of the integrated spray hole 521, and therefore also close to the microbubble filter bag 522. Setting the first and second suction ports at the same time helps to inhale more outside air, thereby generating more microbubbles.
  • a spoiler 219 is also formed on the inner wall of the tapered channel portion 217 with reduced diameter corresponding to the second-stage reduced diameter tapered channel 217b, for example, a plurality of spoilers extending longitudinally along the inner wall.
  • Flow tendons The parts not mentioned in this embodiment are the same as the above-mentioned embodiment.
  • the present invention provides a microbubble spray head.
  • the microbubble spray head includes an integrated nozzle 521 and a microbubble bubbler 522 fixed on the outlet end 212 of the integrated nozzle 521 (see FIGS. 9-16).
  • a tapered channel portion 219 with a reduced diameter is provided in the integrated nozzle 521. At least one stage of a tapered channel with a reduced diameter is formed along the water flow direction C in the tapered channel portion 219 with a reduced diameter.
  • a nozzle hole 217 is formed on the downstream end of the tapered passage portion 219 with a reduced diameter.
  • the nozzle hole 217 is arranged to be integrated after the water stream pressurized through at least one stage of the tapered passage with a reduced diameter is ejected from the nozzle hole 217. Negative pressure is generated in the nozzle 521.
  • An air suction port 216 is provided on the integrated nozzle 521, and the air suction port 216 is positioned close to the nozzle hole 217 so that air is sucked into the integrated nozzle 521 through the suction port 216 by negative pressure and mixed with the water flow to produce bubble water.
  • the microbubble bubbler 522 includes at least two stages of filters 221 spaced apart from each other by a predetermined distance along the water flow direction C to change the bubble water into microbubble water.
  • the number and structure of the micro-bubble spray head of the present invention are greatly simplified, and the manufacturing cost of the micro-bubble spray head is also greatly reduced, but the micro-bubble spray head has a very good micro-bubble spray head. Bubble generation performance.
  • tapeered channel portion with reduced diameter refers to a structure in which the diameter of the channel formed inside the portion or the cross-section transverse to the water flow direction gradually becomes smaller, so that the channel has a substantially conical shape.
  • the microbubble spray head of the present invention can be applied in the field of washing, sterilization, or other fields that require microbubbles.
  • the micro-bubble spray head of the present invention can be applied to washing equipment, and can also be integrated into sanitary faucets or showers.
  • the present invention also provides a washing device, which includes the microbubble spray head 52 of the present invention.
  • the micro-bubble spray head 52 is configured to generate micro-bubble water in the washing device.
  • the micro-bubble nozzle produces microbubble water containing a large number of microbubbles in the washing equipment, which can not only improve the washing capacity of the washing equipment, but also reduce the amount of detergent and the residual amount of detergent in, for example, clothes. Conducive to the health of users, but also to improve the user experience.
  • Fig. 1 is a schematic structural diagram of an embodiment of a washing device with a microbubble spray head of the present invention.
  • the washing device is a pulsator washing machine 1.
  • the washing device may be a drum washing machine, an integrated dryer, or the like.
  • the pulsator washing machine 1 (hereinafter referred to as the washing machine) includes a cabinet 11.
  • a foot 14 is provided at the bottom of the box 11.
  • the upper part of the box body 11 is provided with a disk seat 12, and the disk seat 12 is pivotally connected with an upper cover 13.
  • An outer tub 21 as a tub is provided in the box 11.
  • the inner tub 31 is provided in the outer tub 21, the bottom of the inner tub 31 is provided with a pulsator 32, and the lower part of the outer tub 21 is fixed with a motor 34.
  • the motor 34 is drivingly connected to the pulsator 32 through a transmission shaft 33 and is close to the side wall of the inner tub 31.
  • a dehydration hole 311 is provided at the top.
  • the drain valve 41 is provided on the drain pipe 42, and the upstream end of the drain pipe 42 communicates with the bottom of the outer tub 21.
  • the washing machine also includes a water inlet valve 51 and a micro-bubble spray head 52 communicating with the water inlet valve 51, and the micro-bubble spray head 52 is installed on the top of the outer tub 21. Water enters the microbubble spray head 52 through the water inlet valve 51 to produce microbubble water containing a large number of microbubbles. The microbubble spray head 52 sprays the microbubble water into the detergent box to mix with the detergent, and then enters the inner tub 31 through the detergent box. Used for laundry washing.
  • the micro-bubbles in the inner tub 31 will also hit the stains on the clothes, and will absorb the foreign matter that generates the stains. Therefore, the microbubbles also enhance the decontamination performance of the washing machine.
  • the microbubble spray head can also directly spray microbubble water carrying a large number of microbubbles 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.
  • FIG. 2 is a schematic structural diagram of another embodiment of a washing device with a microbubble spray head of the present invention.
  • the washing device is a drum washing machine 9.
  • the drum washing machine 9 includes a housing 91 and a foot 98 located at the bottom of the housing.
  • An upper deck 94 is provided on the top of the housing 91.
  • the front side of the housing 91 (the side facing the user) is provided with a door body 97 that allows the user to load laundry into the drum washing machine, and the door body 97 is also provided with an observation window 96 that can see the inside of the washing machine.
  • 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 on the housing 91.
  • the control panel 95 of the drum washing machine 9 is arranged on the upper part of the front side of the housing 91 to facilitate the user's operation.
  • An outer tube 92 and an inner tube 93 are arranged inside the housing 91.
  • the inner tube 93 is positioned inside the outer tube 92.
  • the inner cylinder 93 is connected to a motor 931 (for example, a direct drive motor) through a transmission shaft 932 and a bearing 933.
  • a water inlet valve 51 is provided on the upper part of the rear side of the housing 91, and the water inlet valve 51 is connected to the microbubble spray head 52 through a water pipe. As shown in FIG. 2, the microbubble spray head 52 is positioned close to the upper part of the front side of the housing 91 and is located below the control panel 95.
  • the microbubble spray head 52 first sprays the microbubble water into the detergent box to mix with the detergent, and then It enters the inner cylinder 93 through the detergent box and is used for laundry washing.
  • the microbubble spray head 52 can also directly spray microbubble water carrying a large number of microbubbles into the outer tube 92 or the inner tube 93 of the washing machine to further reduce the amount of detergent and enhance the cleaning ability of the washing machine.
  • Figures 9-14 are schematic diagrams of an embodiment of the microbubble spray head of the present invention in the second embodiment, wherein Figure 9 is an embodiment of the microbubble spray head of the present invention in the second embodiment
  • Fig. 10 is a top view of the embodiment of the microbubble spray head of the present invention shown in Fig. 9 in the second embodiment
  • Fig. 11 is the implementation of the microbubble spray head of the present invention shown in Fig.
  • the microbubble spray head 52 of the present invention includes an integrated spray tube 521.
  • a microbubble bubbler 522 is installed on the outlet end 212 of the integrated nozzle 521, and the bubbler 522 is configured to cut and mix the bubbled water when the bubbled water flows therethrough to generate microbubble water containing a large number of microbubbles.
  • the integrated nozzle 521 has an inlet end 211 and an outlet end 212.
  • a microbubble bubbler 522 is fixed on the outlet end 212, and the inlet end 211 is used to connect to an external water source.
  • an anti-drop portion 213 may be provided on the inlet end 211, such as an anti-drop rib that bulges radially outward around the outer wall of the inlet end 211 or an annular groove structure in which the outer wall of the inlet end 211 is recessed inward, which can prevent The integrated nozzle falls off the water supply pipe to which it is connected.
  • a first fixed mounting portion 214A, a second fixed mounting portion 214B, and a positioning portion 215 are provided on the outer wall of the integrated nozzle 521 for removing microbubbles
  • the spray head 52 is positioned and fixed to a predetermined position.
  • the first fixed mounting portion 214A and the second fixed mounting portion 214B are symmetrically positioned on the outer wall of the integrated nozzle 521, and are located in the middle of the integrated nozzle 521.
  • the positioning portion 215 is a long rib that protrudes radially outward from the outer wall of the integrated nozzle 521 and extends along the longitudinal direction of the integrated nozzle 521.
  • the first fixed installation portion 214A and the second fixed installation portion 214B are distributed on both sides of the positioning portion 215.
  • only one fixed installation part is provided on the integrated nozzle 521, and the positioning part 215 may also take other suitable forms.
  • the first and second fixed mounting portions 214A, 214B have a screw hole structure to fix the spray head 52 to a target position on, for example, a washing device by screws.
  • the fixed installation part can adopt any suitable connection structure, such as a snap connection structure, a welding connection structure, and the like.
  • a reduced-diameter channel portion 219 is provided in the integrated nozzle 521, and a first-stage reduced-diameter tapered channel is provided in the reduced-diameter tapered channel portion 219 along the water flow direction C. 219a and the second-stage diameter-reduced tapered channel 219b.
  • the first-stage reduced-diameter tapered passage 219a extends from the inlet end 211 of the integrated nozzle 521 to the second-stage reduced-diameter tapered passage 219b.
  • a nozzle hole 217 is formed at the downstream end of the reduced-diameter passage portion 219.
  • the nozzle hole 217 directly communicates with the second-stage direct-reducing tapered passage 219b located upstream of it and the downstream passage in the integrated nozzle 521 located downstream thereof, so that the first-stage diameter is reduced to the tapered passage 219a and the second
  • the tapered channel 219b with a reduced stage diameter communicates with the downstream channel of the integrated nozzle 521 together.
  • the diameter of the nozzle hole 217 is in the range of 0-6 mm; more preferably, the diameter of the nozzle hole 217 is in the range of 1.2-3.5 mm.
  • only one-stage diameter-reduced tapered passage may be formed in the tapered passage portion 219 with a reduced diameter, or more than two-stage diameter-reduced cones may be formed. aisle.
  • a spoiler 218 is formed on the inner wall surrounding the second-stage diameter-reduced tapered channel 219 b.
  • the spoiler portion 218 is at least one spoiler rib, such as a plurality of spoiler ribs, extending longitudinally along the inner wall of the tapered channel with a reduced diameter.
  • the spoiler 218 may be at least one radial protrusion on the inner wall of the tapered channel with the reduced diameter, for example, one or more cylindrical protrusions.
  • the spoiler 218 may also be formed on the inner wall of the first-stage tapered channel 219b with reduced diameter, or the inner wall of the tapered channel with reduced diameter of each stage may have a spoiler formed on the inner wall of the tapered channel 219b.
  • the outer wall of the portion of the reduced-diameter channel portion 219 corresponding to the second-stage reduced-diameter tapered channel 219b is separated from the inner wall of the integrated nozzle 521, so that the outer wall is separated from the integrated nozzle 521
  • An annular gap 300 is formed between the inner walls. The annular gap 300 facilitates the mixing of air and water, thereby generating more microbubbles.
  • the outer wall of the integrated nozzle 521 is formed with two rows of a plurality of suction ports 216 arranged in a ring shape. These suction ports 216 are all located close to the nozzle holes 217.
  • the water flow enters from the inlet end 211, and first flows through the first and second stages of the tapered channels 219a, 219b with reduced diameters to be pressurized step by step, while the spoiler 218 further increases the vortex of the water flow.
  • the accelerated water flow is rapidly expanded from the nozzle hole 217 into the downstream passage of the integrated nozzle 521, and a negative pressure is generated therein.
  • suction ports 216 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 along the direction E and mixed with the water flow therein to generate bubble water.
  • more or fewer suction ports can be provided as required, and they can be arranged in other ways, for example, in a staggered manner.
  • the bubble water then flows to the micro bubble bubbler 522.
  • the microbubble bubbler 522 includes a first-stage filter 221a and a second-stage filter 221b along the water flow direction C.
  • the first-stage filter 221a and the second-stage filter 221b are arranged parallel to each other and spaced apart by a predetermined distance.
  • the number of filter layers of the first-level filter 221a is less than that of the second-level filter 221b.
  • the first-stage filter 221a has a single-layer filter
  • the second-stage filter 221b has two or three-layer filter.
  • the first-stage filter 221a also has more than one layer of filters.
  • the microbubble bubbler may include more than two stages of filter screens to produce microbubbles with a smaller diameter.
  • both the first-stage filter 221a and the second-stage filter 221b have at least one pore with a diameter of micrometers.
  • the diameter of the pores is between 0 and 1000 microns; more preferably, the diameter of the pores is between 5 and 500 microns.
  • the first-level filter 221a and the second-level filter 221b may be plastic fences, metal meshes, polymer material meshes, or other suitable mesh structures.
  • a plastic fence usually refers to a polymer fence, which is integrally injection-molded from a polymer material, or a polymer material is first made into a plate, and then a microporous structure is generated on the plate by machining to form a plastic fence.
  • the polymer material net usually refers to a net with a microporous structure that is made by first making a polymer material into a wire, and then weaving the wire into a microporous structure.
  • the polymer material net may include nylon net, cotton fiber net, polyester net, polypropylene net and so on.
  • the first-stage filter 221a and the second-stage filter 221b may be other mesh structures capable of generating microbubbles, for example, a mesh structure composed of two non-micron honeycomb structures.
  • Fig. 15 is a perspective exploded view of the first embodiment of the microbubble spray head of the present invention in the second embodiment.
  • the microbubble bubbler 522 includes a net frame 225 for fixing the first-stage filter 221a and the second-stage filter 221b together, and the net frame 225 is fixed to an integral part.
  • the fixing member 222 on the outlet end 212 of the type nozzle 521.
  • the grid 225 has a circular ring shape. As shown in Figures 13-14, the first-stage filter 221a and the second-stage filter 221b are respectively attached to the axial ends of the grid frame 225. The specific attachment methods include but are not limited to secondary molding and bonding. Or cladding. In one or more embodiments, a plurality of overflow ports (or overflow holes) 226 are formed on the circumferential surface of the grid 225. When the flow rate of the jet water is relatively large, part of the water is allowed to overflow from these overflow ports 226, which not only helps to clean the filter, but also prevents the excess water from flowing back through the suction ports and making it impossible to inhale air through these suction ports. . When the flow rate of the jet water is relatively small, these overflow ports 226 can also serve as auxiliary suction ports for inhaling more air.
  • the fixing member 222 is substantially cylindrical, has a first end with an inner diameter larger than the outer diameter of the outlet end 212 of the integral nozzle 521, and an opening whose inner diameter is smaller than that of the integral nozzle 521.
  • An internal thread (not shown in the figure) is formed on the inner wall of the first end, and the internal thread can engage with the external thread 212 a formed on the outlet end 212 of the integrated nozzle 521.
  • the net frame 225 together with the first-stage filter 221a and the second-stage filter 221b are pressed on the outlet end 212 of the integrated nozzle 521 Between the end surface and the inner end surface of the second end of the fixing member 222.
  • a plurality of overflow openings (or overflow holes) 223 are provided on the outer circumference of the fixing member 222, and these overflow openings are positioned close to the second end of the fixing member 222.
  • the overflow port 223 can prevent a situation in which air cannot be sucked into the integrated nozzle due to the blockage of the air suction port, and therefore microbubble water cannot be generated.
  • more or fewer overflow ports 223 may be provided as required.
  • a set gap may be reserved between the engaged external thread 212a and the internal thread of the fixing member 222 to allow air to be sucked into the integrated nozzle 521 through the gap.
  • the fixing member 222 may be connected to the outlet end 212 of the integrated nozzle 521 by other connection methods, such as snapping, screw connection, or welding.
  • a connecting portion 224 is provided on the periphery of the second-stage filter 221b.
  • the net frame 225 presses the connecting portion 224 on the inner end surface of the second end of the fixing member 222, so that the second-stage filter 221b can be firmly fixed, so that the second-stage filter 221b will not be removed from the impact of the high-pressure water flow.
  • the outlet end 212 of the integrated nozzle 521 falls off.
  • Fig. 16 is an exploded perspective view of the second embodiment of the microbubble spray head of the present invention in the second embodiment.
  • the net frame 225 combined with the first-stage filter 221 a and the second-stage filter 221 b is directly fixed on the outlet end 212 of the integrated nozzle 521.
  • a clamping arm 227 is provided on the axial end of the net frame 225 facing the outlet end 212 of the integrated nozzle 521.
  • a slot 212b is provided on the outlet end 212 of the integrated nozzle 521.
  • the net frame 225 can also be fixed to the outlet end 212 of the integrated nozzle 521 by means of screw connection or welding.
  • a plurality of overflow ports (or overflow holes) 226 are formed on the circumferential surface of the grid 225. These overflow ports 226 can prevent air from being sucked into the integrated nozzle due to the blockage of the suction port, and therefore microbubble water cannot be generated.
  • the parts not mentioned in this embodiment are the same as the above-mentioned embodiment.
  • the present invention provides a microbubble spray head, which includes an integrated nozzle 521 and a microbubble net 522 (see Figures 3-9) .
  • a tapered channel portion 217 with a reduced diameter is provided in the integrated nozzle 521.
  • At least one stage 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 spray hole 218 is formed at the downstream end of the tapered passage portion 217 with a reduced diameter.
  • the nozzle hole 218 is configured such that the water stream flowing through at least one-stage diameter-reduced tapered channel is ejected from the nozzle hole and generates a negative pressure in the integrated nozzle pipe 521.
  • a suction port 216 is provided on the pipe wall of the integrated nozzle 521, and the suction port 216 is positioned so that air can be sucked into the integrated nozzle 521 through the suction port 216 by means of negative pressure and mixed with the water flow to generate bubble water.
  • the bubble water passes through the micro bubble net 522 to become micro bubble water. Therefore, compared with the prior art micro-bubble generator, the number and structure of the micro-bubble spray head of the present invention are greatly simplified, and the manufacturing cost of the micro-bubble spray head is also greatly reduced. The performance of air bubbles.
  • tapeered channel portion with reduced diameter refers to a structure in which the diameter of the channel formed inside the portion gradually becomes smaller along the water flow direction, so that the channel is tapered.
  • the microbubble spray head of the present invention can be applied in the field of washing, sterilization, or other fields that require microbubbles.
  • the micro-bubble spray head of the present invention can be applied to washing equipment, and can also be integrated into sanitary faucets or showers.
  • the present invention also provides a washing device, which includes the microbubble spray head 52 of the present invention.
  • the micro-bubble spray head 52 is configured to generate micro-bubble water in the washing device.
  • the microbubble nozzle 52 generates microbubble water containing a large number of microbubbles in the washing equipment, which can not only improve the washing capacity of the washing equipment, but also reduce the amount of detergent and the residual amount of detergent in, for example, clothes, thereby not only Conducive to the health of users, but also improve the user experience.
  • Fig. 1 is a schematic structural diagram of an embodiment of a washing device with a microbubble spray head of the present invention.
  • the washing device is a pulsator washing machine 1.
  • the washing device may be a drum washing machine, an integrated dryer, or the like.
  • the pulsator washing machine 1 (hereinafter referred to as the washing machine) includes a cabinet 11.
  • a foot 14 is provided at the bottom of the box 11.
  • the upper part of the box body 11 is provided with a disk seat 12, and the disk seat 12 is pivotally connected with an upper cover 13.
  • An outer tub 21 as a tub is provided in the box 11.
  • the inner tub 31 is provided in the outer tub 21, the bottom of the inner tub 31 is provided with a pulsator 32, the lower part of the outer tub 21 is fixed with a motor 34, the motor 34 is drivingly connected to the pulsator 32 through a transmission shaft 33, and is provided on the side wall of the inner tub 31
  • the drain valve 41 is provided on the drain pipe 42, and the upstream end of the drain pipe 42 communicates with the bottom of the outer tub 21.
  • the washing machine also includes a water inlet valve 51 and a micro-bubble spray head 52 communicating with the water inlet valve 51, and the micro-bubble spray head 52 is installed on the top of the outer tub 21. Water enters the microbubble spray head 52 through the water inlet valve 51 to produce microbubble water containing a large number of microbubbles. The microbubble spray head 52 sprays the microbubble water into the detergent box to mix with the detergent, and then enters the inner tub 31 through the detergent box. Used for laundry washing.
  • the micro-bubbles in the inner tub 31 will also hit the stains on the clothes, and will absorb the foreign matter that generates the stains. Therefore, the microbubbles also enhance the decontamination performance of the washing machine.
  • the microbubble spray head can also directly spray microbubble water carrying a large number of microbubbles 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.
  • FIG. 2 is a schematic structural diagram of another embodiment of a washing device with a microbubble spray head of the present invention.
  • the washing device is a drum washing machine 9.
  • the drum washing machine 9 includes a housing 91 and a foot 98 located at the bottom of the housing.
  • An upper deck 94 is provided on the top of the housing 91.
  • the front side of the housing 91 (the side facing the user) is provided with a door body 97 that allows the user to load laundry into the drum washing machine, and the door body 97 is also provided with an observation window 96 that can see the inside of the washing machine.
  • 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 on the housing 91.
  • the control panel 95 of the drum washing machine 9 is arranged on the upper part of the front side of the housing 91 to facilitate the user's operation.
  • An outer tube 92 and an inner tube 93 are arranged inside the housing 91.
  • the inner tube 93 is positioned inside the outer tube 92.
  • the inner cylinder 93 is connected to a motor 931 (for example, a direct drive motor) through a transmission shaft 932 and a bearing 933.
  • a water inlet valve 51 is provided on the upper part of the rear side of the housing 91, and the water inlet valve 51 is connected to the microbubble spray head 52 through a water pipe. As shown in FIG. 2, the microbubble spray head 52 is positioned close to the upper part of the front side of the housing 91 and is located below the control panel 95.
  • the microbubble spray head 52 first sprays the microbubble water into the detergent box to mix with the detergent, and then It enters the inner tube 93 through the detergent box and is used for laundry washing.
  • the microbubble spray head 52 can also directly spray microbubble water carrying a large number of microbubbles 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.
  • Figures 17-19 are schematic diagrams of an embodiment of the microbubble spray head of the present invention in the third embodiment, wherein Figure 17 is a top view of an embodiment of the microbubble spray head of the present invention in the third embodiment 18 is a left side view of an example of the microbubble spray head of the present invention in the third embodiment, and FIG. 19 is a front view of an example of the microbubble spray head of the present invention in the third embodiment.
  • the microbubble spray head 52 of the present invention includes an integrated spray tube 521.
  • a microbubble net 522 is installed on the outlet end 212 of the integrated nozzle 521, and the microbubble net 522 is configured to cut and mix the bubbled water when the bubbled water flows therethrough to generate microbubble water containing a large number of microbubbles.
  • the integrated nozzle 521 has an inlet end 211 and an outlet end 212.
  • a microbubble net 522 is fixed on the outlet end 212, and the inlet end 211 is used to connect to an external water source.
  • an anti-drop portion 213 may be provided on the inlet end 211, such as an anti-drop rib that bulges radially outward around the outer wall of the inlet end 211 or an annular groove structure in which the outer wall of the inlet end 211 is recessed inward, which can prevent The integrated nozzle falls off the water supply pipe to which it is connected.
  • the outer wall of the integrated nozzle 521 is provided with a first fixed mounting portion 214A, a second fixed mounting portion 214B, and a positioning portion 215, which are used to The microbubble spray head 52 is positioned and fixed to a predetermined position.
  • the first fixed mounting portion 214A and the second fixed mounting portion 214B are symmetrically positioned on the outer wall of the integrated nozzle 521 and located in the middle of the integrated nozzle 521.
  • the positioning portion 215 is a long rib that protrudes radially outward from the outer wall of the integrated nozzle 521 and extends along the longitudinal direction of the integrated nozzle 521.
  • the first fixed installation portion 214A and the second fixed installation portion 214B are distributed on both sides of the positioning portion 215.
  • only one fixed installation part is provided on the integrated nozzle 521, and the positioning part 215 may also take other suitable forms.
  • the first and second fixed mounting portions 214A, 214B have a screw hole structure to fix the spray head 52 to the target position by screws.
  • the fixed installation part can adopt any suitable connection structure, such as a snap connection structure, a welding connection structure, and the like.
  • the microbubble net 522 is sleeved on the outlet end 212 of the integrated nozzle 521, and is fixed to the integrated nozzle 521 by a fixing device, such as a pressing ring 523 On the outer wall.
  • a fixing device such as a pressing ring 523 On the outer wall.
  • the pressing ring 523 may be a metal circlip.
  • a suitable material such as an elastic ring of elastic material (for example, a rubber band) or a plastic cable tie can also be used to fix the microbubble net 522.
  • the microbubble mesh 522 has at least one pore with a diameter of micrometers.
  • the diameter of the pores is between 0 and 1000 microns; more preferably, the diameter of the pores is between 5 and 500 microns.
  • the microbubble mesh 522 may be a metal mesh or a polymer material mesh, or other suitable mesh structures.
  • the metal mesh includes, but is not limited to, stainless steel wire, nickel wire, brass wire and other materials.
  • the polymer material net usually refers to a net with a microporous structure that is made by first making a polymer material into a wire, and then weaving the wire into a microporous structure.
  • the wefts are arranged densely, which can be woven by the following weaving methods: plain weave, twill weave, plain Dutch weave, twill Dutch weave, and reverse Dutch weave.
  • Polymer material nets include but are not limited to nylon (polyester) nets, cotton nets, polypropylene nets and the like.
  • the microbubble net may be formed of cotton fiber net.
  • the microbubble net 522 has a structure of at least two layers. The more layers of the microbubble net 522, the better the generation effect of microbubbles, but the resistance of the water flow also increases.
  • the number of layers of the microbubble net 522 is not less than 3 and not more than 12. In an alternative embodiment, the number of layers of the microbubble net 522 is not less than 3 and not more than 5.
  • a tapered channel portion 217 with a reduced diameter is provided in the integrated nozzle 521.
  • the tapered channel portion 217 with a reduced diameter is positioned close to the inlet end 211 of the integrated nozzle 521.
  • a first-stage reduced-diameter tapered passage 217b is formed in the reduced-diameter tapered passage portion 217 along the water flow direction C, and a spray hole 218 is provided at the downstream end of the reduced-diameter tapered passage portion 217.
  • the nozzle hole 218 is respectively communicated with the upstream first-stage diameter-reduced tapered passage 217b and the downstream passage located in the integrated nozzle 521.
  • a shorter second-stage tapered channel 217c with a reduced diameter is also formed in the inlet end 211 of the integrated nozzle 521 along the water flow direction C.
  • the second-stage reduced diameter tapered passage 217c directly extends downstream to the first-stage reduced diameter tapered passage 217b, and the smallest diameter of the second-stage reduced diameter tapered passage 217c at its downstream end is larger than that of the first-stage reduced diameter tapered passage 217c.
  • the maximum diameter of the small tapered channel 217b is provided in the inlet end 211 of the integrated nozzle 521 along the water flow direction C.
  • more than one-stage diameter-decreasing tapered channels may be formed along the water flow direction C in the reduced-diameter tapered passage portion 217, for example, two-stage, three-stage or more. The diameter of the stage becomes smaller in the tapered channel.
  • a spoiler 217a is formed on the inner wall of the tapered channel portion 217 with a reduced diameter.
  • the spoiler portion 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 with a reduced diameter.
  • the spoiler 217a may be at least one radial protrusion on the inner wall of the tapered channel portion with a reduced diameter, for example, one or more cylindrical protrusions.
  • the spoiler 217a may be formed only on the inner wall of the tapered channel corresponding to the first-stage diameter reduction, or on the inner wall of the tapered channel corresponding to each stage of the reduction in diameter, or formed on the inner wall corresponding to more than one-stage diameter. On the inner wall of the tapered channel.
  • the outer wall of the tapered channel portion 217 with reduced diameter is separated from the inner wall of the integrated nozzle 521, so that the outer wall of the tapered channel portion 217 with reduced diameter is integrated with
  • An annular gap 300 is formed between the inner walls of the nozzle 521. The annular gap 300 facilitates the mixing of air and water, thereby generating more microbubbles.
  • an air suction port 216 is also formed on the integrated nozzle 521.
  • the suction port 216 is formed on the pipe wall of the integrated nozzle 521 and is located close to the nozzle hole 218.
  • the water flow enters from the inlet end 211 of the integrated nozzle 521, first flows through the first-stage tapered channel 217c with a reduced diameter, and then flows into the second-stage tapered channel 217b with a reduced diameter, so as to be pressurized, and the spoiler 217a Then the vortex of the water flow can be increased.
  • the pressurized water stream is ejected from the nozzle hole 218 into the downstream passage of the integrated nozzle 521 and is rapidly expanded, so a negative pressure is generated 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 produce bubble water. The bubble water is cut and mixed when passing through the micro bubble net 522, thereby generating micro bubble water.
  • FIG. 21 is a cross-sectional view of the second embodiment of the microbubble spray head of the present invention in the third embodiment taken along the section line A-A of FIG. 19.
  • the tapered channel portion 217 with a reduced diameter is located close to the inlet end of the integrated nozzle 521, but the suction port 216 is located close to the outlet end of the integrated nozzle 521, and therefore close to the micro ⁇ 522 ⁇ Bubble network 522.
  • the suction port 216 is still in the negative pressure range created by the nozzle hole 218.
  • Fig. 22 is a cross-sectional view of the third embodiment of the microbubble spray head of the present invention in the third embodiment taken along the section line A-A of Fig. 19.
  • the tapered channel portion 217 with reduced diameter is located close to the outlet end 212 of the integrated nozzle 521, and the suction port 216 is located close to the downstream of the tapered channel portion 217 with reduced diameter.
  • the nozzle hole 218 on the end.
  • the second-stage reduced-diameter tapered passage 217c extends a long distance from the inlet end 211 of the integrated nozzle 521 to the first-stage reduced-diameter tapered passage 217b in the reduced-diameter tapered passage portion 217.
  • no spoiler is provided in the tapered channel portion 217 with a reduced diameter.
  • the parts not mentioned in this embodiment are the same as the above-mentioned embodiment.
  • Fig. 23 is a cross-sectional view of the fourth embodiment of the microbubble spray head of the present invention in the third embodiment taken along the section line A-A of Fig. 19.
  • the tapered channel portion 217 with a reduced diameter is also located close to the outlet end 212 of the integrated nozzle 521, and the suction port 216 is located close to the tapered channel portion 217 with a reduced diameter. Orifice 218 on the downstream end.
  • the second-stage reduced-diameter tapered passage 217c extends a long distance from the inlet end 211 of the integrated nozzle 521 to the first-stage reduced-diameter tapered passage 217b in the reduced-diameter tapered passage portion 217.
  • a spoiler 217a is provided in the tapered channel portion 217 with a reduced diameter, specifically a plurality of longitudinal spoilers extending along the inner wall of the tapered channel portion 217 with a reduced diameter.
  • the parts not mentioned in this embodiment are the same as the above-mentioned embodiment.

Abstract

一种微气泡喷头及具有微气泡喷头的洗涤设备。微气泡喷头包括一体式喷管(521)和固定在一体式喷管(521)的出口端(212)内的微气泡滤网袋(522),在一体式喷管(521)内形成有文丘里管结构,并且在一体式喷管(521)上设有吸气口(216),使得空气借助由文丘里管结构制造的负压通过吸气口(216)被吸入一体式喷管(521)并且与一体式喷管(521)内的水流混合产生气泡水;微气泡滤网袋(522)包括开口(223)、底部(221)和位于开口(223)与底部(221)之间的侧壁(222),该开口(223)朝向文丘里管结构,并且在侧壁(222)与出口端(212)的内壁(212a)之间形成出水空间(524)以便气泡水能够穿过侧壁(222)和底部(221)而形成微气泡水。微气泡滤网袋(522)不仅其底部(221)参加混合和切割气泡水,而且其更大面积的侧壁(222)也参加混合和切割气泡水,因此微气泡喷头的微气泡水的产量会得到显著的增加。

Description

微气泡喷头及具有该微气泡喷头的洗涤设备
优先权要求
本申请要求以下中国发明专利申请的优先权:2019年12月30日提交的、申请号为“201911399452.0”的中国发明专利申请;2019年12月4日提交的、申请号为“201911229872.4”的中国发明专利申请;2019年12月24日提交的、申请号为“201911348666.5”的中国发明专利申请。这些申请的内容通过引用全部结合到本文中。
技术领域
本发明涉及微气泡产生装置,具体地涉及微气泡喷头及具有该微气泡喷头的洗涤设备。
背景技术
微气泡(micro-bubble)通常是指气泡发生时直径在五十微米(μm)以下的微小气泡。微气泡根据其直径范围也可以称为微纳气泡(micro-/nano-bubble)、微米气泡或纳米气泡(nano-bubble)。微气泡由于其在液体中的浮力小,因此在液体中滞留的时间比较长。而且,微气泡在液体中会发生收缩直到最后破碎,生成更小的纳米气泡。在这个过程中,气泡因为变小所以其上升速度变得缓慢,导致融化效率高。微气泡在破碎的时候局部会产生高压和高温的热,由此能够破坏漂浮在液体中或附着在物体上的有机物等异物。另外,微气泡的收缩过程还伴随负电荷的增加,负电荷的高峰状态通常是在微气泡的直径处于1-30微米的时候,因此容易吸附漂浮在液体中的带正电荷的异物。结果就是异物在其由于微气泡的破碎而被破坏之后会被微气泡吸附,然后慢慢浮到液体表面。这些特性使得微气泡具备很强的清洗和净化能力。目前,微气泡已经被广泛应用于洗衣机等洗涤设备中。
为了制造微气泡,不同结构的微气泡产生装置已经被开发出来。例如,中国发明专利申请(CN107321204A)公开了一种微气泡产生器。该微气泡产生器包括两端为开口状的外壳,外壳的第一端连接有进水管,在外壳内沿着水流方向依次设置有涡柱、涡柱壳、气液混合管以及定位在外壳的第二端的孔网。气液混合管从头部到尾部依次形成有连通的容置腔、气流部、加速部和流通部。涡柱壳及位于其内的涡柱定位在容置腔内;气流部的管壁上设有进气口;气流部的内壁朝向容置腔的方向凸出,形成呈漏斗状的凸出部,在漏斗状凸出部的大口端与锥形的涡柱壳之间形成供由进气口进入的空气进入气流部的缝隙;加速部的内径朝向尾部方向逐渐增大。水流流经涡柱在涡柱壳内部形成高速旋转水流,高速旋转水流从涡柱壳的出口流出后进入凸出部围成的漏斗状空间内,在水流周围形成的负压将空气从进气口吸入并与水流混合后进入加速部,由于涡柱壳的锥形面以及加速部的内径朝向尾部方向逐渐增大而形成压差,使混合大量空气的水流(形成气泡水)加速流动,气泡水经由流通部流向孔网,气泡水被孔网中的细孔切割并混合而产生含有大量微气泡的微气泡水。
中国发明专利申请(CN107583480A)也公开了一种微气泡产生器。该微气泡产生器包括两端为开口状的外壳,外壳的第一端连接有进水管,在外壳内沿着水流方向依次设置有增压管、气泡产生管以及定位在外壳的第二端的孔网。气泡产生管从第一端到第二端依次形成有容置腔、气液混合部、扩张引导部。在容置腔内接纳增压管,增压管具有面向容置腔的锥形端;在气液混合部内形成有沿着第一端到第二端的方向尺寸逐渐减小的锥形的气液 混合空间;扩张引导部内形成有沿着第一端到第二端的方向尺寸增大的扩张引导空间。气泡产生管的管壁上设有进气通道,气液混合部的内壁与增压管的外壁之间形成间隙以便与气泡产生管的管壁上的进气通道连通,增压管的出水口置于气液混合部的进水口内。水流流经增压管被增压形成高速水流,高速水流从增压管的出水口流出后进入气液混合腔并且在气液混合腔内形成负压,该负压将大量空气通过进气通道吸入水流中并且使空气与水混合形成气泡水,气泡水从扩张引导部流向孔网,气泡水被孔网的细孔混合和切割形成微气泡水。
上述两种微气泡产生器均具有至少五种独立的部件:外壳,进水管,涡柱和涡壳或增压管,气液混合管或气泡产生管,以及孔网。这些部件都需要设计特定的配合或连接结构,以便所有部件能够组装在一起并且保证组装好的微气泡产生器能够可靠地工作。因此,这样的微气泡产生器的部件和结构都比较复杂,并且制造成本也很高。
相应地,本领域需要一种新的技术方案来解决上述问题。
发明内容
为了解决现有技术中的上述问题,即为了解决现有微气泡产生器结构复杂、制造成本高的技术问题,本发明提供了一种微气泡喷头。在第一实施方式中,该微气泡喷头包括一体式喷管和固定在所述一体式喷管的出口端内的微气泡滤网袋,在所述一体式喷管内形成有文丘里管结构,并且在所述一体式喷管上设有吸气口,使得空气借助由所述文丘里管结构制造的负压通过所述吸气口被吸入一体式喷管并且与所述一体式喷管内的水流混合产生气泡水;所述微气泡滤网袋包括开口、底部和位于所述开口与底部之间的侧壁,所述开口朝向所述文丘里管结构,并且在所述侧壁与所述出口端的内壁之间形成出水空间以便所述气泡水能够穿过所述侧壁和底部而形成微气泡水。
在上述微气泡喷头的优选技术方案中,所述微气泡滤网袋由至少两层滤网形成。
在上述微气泡喷头的优选技术方案中,所述微气泡滤网袋由金属滤网或高分子材料网制成。
在上述微气泡喷头的优选技术方案中,所述微气泡滤网袋通过卡簧固定在所述出口端的内壁上。
在上述微气泡喷头的优选技术方案中,所述文丘里管结构由直径变小锥形通道部构成,沿着水流方向在所述直径变小锥形通道部内形成有至少一级直径变小锥形通道,并且在所述直径变小锥形通道部的下游端上设有喷孔,使得通过所述至少一级直径变小锥形通道加压的水流能够从所述喷孔喷出并且在所述一体式喷管内产生负压。
在上述微气泡喷头的优选技术方案中,当所述喷孔定位靠近所述一体式喷管的进口端时,所述吸气口定位成靠近所述喷孔和/或者定位在所述出口端上。
在上述微气泡喷头的优选技术方案中,在所述一体式喷管上设有第一吸气口和第二吸气口,所述第一吸气口定位靠近所述喷孔,并且所述第二吸气口定位在所述出口端上,以帮助吸入更多的外界空气。
在上述微气泡喷头的优选技术方案中,当所述喷孔定位靠近所述出口端时,所述吸气口定位靠近所述喷孔。
在上述微气泡喷头的优选技术方案中,所述文丘里管结构能够是下列结构中的任意一种:沿着水流方向具有相互平行的多个直径变小锥形通道的结构,沿着所述水流方向具有单个节流孔的结构,沿着所述水流方向具有相互平行的多个节流孔的结构,沿着所述水流方向具有单个直径先变小后变大通道的结构,或者沿着所述水流方向具有相互平行的多个直径先变小后变大通道的结构。
本领域技术人员能够理解的是,在本发明的技术方案中,微气泡喷头包括一体式喷管和固定在该一体式喷管的出口端内的微气泡滤网袋。在一体式喷管内形成有文丘里管结构,并且在一体式喷管上设有吸气口,使得大量的外界空气能够借助由文丘里管结构制造的负压通过吸气口被吸入一体式喷管并且与一体式喷管内的水流混合产生气泡水。微气泡滤网袋包括开口、底部和位于开口与底部之间的侧壁,开口朝向文丘里管结构,并且在侧壁与出口端的内壁之间形成出水空间,从而允许一体式喷管内的气泡水能够穿过微气泡滤网袋的侧壁和底部而形成微气泡水。微气泡滤网袋不仅其底部参加混合和切割气泡水,而且其更大面积的侧壁也参加混合和切割气泡水,因此微气泡水的产量会得到显著的增加。在本发明微气泡喷头的技术方案中,通过在一体式喷管内设计的文丘里管结构和固定在一体式喷管的出口端内的微气泡滤网袋来实现产生含有大量微气泡的大量微气泡水的功能。因此,与现有技术的具有很多部件的微气泡产生器相比,本发明微气泡喷头不仅具有非常好的微气泡水产生性能,而且该微气泡喷头的部件数量大大减少,也因此省去了设计和制造部件之间连接结构的需求,使得整个微气泡喷头的制造成本显著地降低。
优选地,微气泡滤网袋由至少两层滤网形成,以保证产生直径更小的微气泡。
优选地,文丘里管结构能够采用不同的形式,例如既能够是直径变小锥形通道部,也能够是以下结构中的一种:沿着水流方向具有相互平行的多个直径变小锥形通道的结构,沿着水流方向具有单个节流孔的结构,沿着水流方向具有相互平行的多个节流孔的结构,沿着水流方向具有单个直径先变小后变大通道的结构,或者沿着水流方向具有相互平行的多个直径先变小后变大通道的结构。
为了解决现有技术中的上述问题,即为了解决现有微气泡产生器结构复杂、制造成本高的技术问题,本发明提供了一种微气泡喷头。在第二实施方式中,所述微气泡喷头包括一体式喷管和固定在所述一体式喷管的出口端上的微气泡起泡器,在所述一体式喷管内设有直径变小锥形通道部,在所述直径变小锥形通道部内沿着水流方向形成至少一级直径变小锥形通道,并且在所述直径变小锥形通道部的下游端上形成有喷孔,所述喷孔配置成在经过所述至少一级直径变小锥形通道加压的水流从所述喷孔喷出后在所述一体式喷管内产生负压;在所述一体式喷管上设有吸气口,所述吸气口定位靠近所述喷孔以便空气借助所述负压通过所述吸气口被吸入所述一体式喷管并且与所述水流混合产生气泡水;以及所述微气泡起泡器沿着所述水流方向包括相互间隔预定距离的至少两级滤网以将所述气泡水变成微气泡水。
在上述微气泡喷头的优选技术方案中,所述至少一级直径变小锥形通道包括第一级直径变小锥形通道和第二级直径变小锥形通道。
在上述微气泡喷头的优选技术方案中,在所述直径变小锥形通道部的内壁上形成有扰流部。
在上述微气泡喷头的优选技术方案中,所述喷孔的直径在0-6mm的范围内。
在上述微气泡喷头的优选技术方案中,所述至少两级滤网包括第一级滤网和第二级滤网,所述第一级滤网包括至少一层滤网,并且所述第一级滤网的层数少于所述第二级滤网的层数。
在上述微气泡喷头的优选技术方案中,所述微气泡起泡器包括网架以将所述至少两级滤网固定在一起。
在上述微气泡喷头的优选技术方案中,所述网架直接固定在所述一体式喷管的出口端上。
在上述微气泡喷头的优选技术方案中,所述微气泡起泡器还包括固定件并且所述网架通过所述固定件固定到所述一体式喷管的出口端上。
在上述微气泡喷头的优选技术方案中,所述网架和固定件的至少一个上设有溢流口。
本领域技术人员能够理解的是,在本发明的技术方案中,微气泡喷头包括一体式喷管和安装在该一体式喷管的出口端上的微气泡起泡器。在一体式喷管内设有直径变小锥形通道部,并且在该直径变小锥形通道部内沿着水流方向形成至少一级直径变小锥形通道。当水流流过该至少一级直径变小锥形通道时,水流被加压,也被加速。在直径变小锥形通道部的下游端上形成有喷孔。加压后的水流会从该喷孔快速膨胀地喷出,因此在一体式喷管的下游通道内造成负压。在一体式喷管上设有吸气口,并且该吸气口定位靠近喷孔,结果就是在负压的作用下大量空气从外界通过吸气口被吸入到一体式喷管内并与水流混合而产生含有大量气泡的气泡水。微气泡起泡器沿着水流方向包括相互间隔预定距离的至少两级滤网,使得气泡水能够依次通过每级滤网而被切割和混合,从而更加有效地产生含有大量微气泡的微气泡水。在本发明微气泡喷头的技术方案中,通过在一体式喷管内设计的直径变小锥形通道部、和固定在一体式喷管的出口端的微气泡起泡器来实现产生微气泡的功能。因此,与现有技术的具有很多部件的微气泡产生器相比,本发明微气泡喷头虽然结构简单,因此制作成本也显著降低,但是具有极好的微气泡的产生性能。
优选地,多于一级的直径变小锥形通道能够对水流提供更高程度的加压和加速。
优选地,扰流部通过加大水的紊流能够帮助水流在下游更加有效地混合被吸入的空气。
优选地,溢流口的设计能够防止多余的水淹没吸气口,从而阻止因吸气口被堵而使空气无法被吸入一体式喷管因此无法产生微气泡水的情形。
为了解决现有技术中的上述问题,即为了解决现有微气泡产生器结构复杂、制造成本高的技术问题,本发明提供了一种微气泡喷头。在第三实施方式中,包括一体式喷管和固定在所述一体式喷管的出口端上的微气泡网,在所述一体式喷管内设有直径变小锥形通道部,在所述直径变小锥形通道部内沿着水流方向形成有至少一级直径变小锥形通道,并且在所述直径变小锥形通道部的下游端上形成有喷孔,所述喷孔配置成使得流过所述至少一级直径变小锥形通道的水流从所述喷孔喷出并且在所述一体式喷管内产生负压;并且在所述一体式喷管上设有吸气口,所述吸气口定位成使得空气能够借助所述负压通过所述吸气口被吸入所述一体式喷管并且与所述水流混合产生气泡水,所述气泡水通过所述微气泡网变成微气泡水。
在上述微气泡喷头的优选技术方案中,所述微气泡网套在所述一体式喷管的出口端上并且通过固定装置固定在所述一体式喷管的外壁上。
在上述微气泡喷头的优选技术方案中,所述微气泡网包括至少2层网。
在上述微气泡喷头的优选技术方案中,所述微气泡网包括金属网或高分子材料网。
在上述微气泡喷头的优选技术方案中,所述直径变小锥形通道部定位成靠近所述一体式喷管的进口端,并且所述吸气口定位成靠近所述喷孔。
在上述微气泡喷头的优选技术方案中,所述直径变小锥形通道部定位成靠近所述一体式喷管的进口端,并且所述吸气口定位成靠近所述一体式喷管的出口端。
在上述微气泡喷头的优选技术方案中,所述直径变小锥形通道部定位成靠近所述一体式喷管的出口端,并且所述吸气口定位成靠近所述喷孔。
在上述微气泡喷头的优选技术方案中,在所述直径变小锥形通道部的内壁上设有扰流部。
在上述微气泡喷头的优选技术方案中,所述扰流部是设置在所述直径变小锥形通道部的内壁上的至少一个径向突起部或者是沿着所述直径变小锥形通道部的内壁纵向延伸的至少一个扰流筋。
本领域技术人员能够理解的是,在本发明的技术方案中,微气泡喷头包括一体式喷管和固定在该一体式喷管的出口端上的微气泡网。在一体式喷管内设有直径变小锥形通道部,在直径变小锥形通道部内沿着水流方向形成有至少一级直径变小锥形通道,并且在直径变小锥形通道部的下游端上设有喷孔。水流在该至少一级直径变小锥形通道内被加压(加速),加压后的水流从喷孔被快速膨胀地喷入到一体式喷管内的下游通道并且在该下游通道内产生负压。在一体式喷管上设有吸气口,该吸气口处于负压作用范围内,因此在负压的作用下,大量空气从外界经由吸气口被吸入到一体式喷管内并与水混合而产生含有大量气泡的气泡水。气泡水然后流过位于一体式喷管的出口端上的微气泡网而被切割和混合,从而产生含有大量微气泡的微气泡水。在本发明微气泡喷头的技术方案中,通过在一体式喷管内设计的直径变小锥形通道部和固定在一体式喷管的出口端的微气泡网来实现产生微气泡的功能。因此,与现有技术的具有很多部件的微气泡产生器相比,本发明微气泡喷头不仅具有良好的产生微气泡的性能,而且该微气泡喷头的部件数量大大减少,也因此省去了设计和制造部件之间连接结构的需求,使得整个微气泡喷头的制造成本显著地降低。
优选地,在直径变小锥形通道部的内壁上设置扰流部。这些扰流部通过加大水的紊流能够帮助水流在下游更加有效地混合被吸入的空气。
本发明还提供一种洗涤设备,所述洗涤设备包括如上所述的任一种微气泡喷头,所述微气泡喷头设置成在所述洗涤设备内产生微气泡水。微气泡喷头在洗涤设备内产生含有大量微气泡的微气泡水,因此不仅能够提高洗涤设备的洗净能力,而且能够减少洗涤剂的用量并降低洗涤剂在例如衣物中的残留量。
附图说明
下面参照附图来描述本发明的优选实施方式,附图中:
图1是本发明包括微气泡喷头的洗涤设备的一种实施例的结构示意图;
图2是本发明包括微气泡喷头的洗涤设备的另一种实施例的结构示意图;
图3是本发明微气泡喷头在第一实施方式中的实施例的俯视图;
图4是本发明微气泡喷头在第一实施方式中的实施例的正视图;
图5是沿着图4的剖面线A-A截取的本发明微气泡喷头在第一实施方式中的第一实施例的剖视图;
图6是沿着图4的剖面线A-A截取的本发明微气泡喷头在第一实施方式中的第二实施例的剖视图;
图7是沿着图4的剖面线A-A截取的本发明微气泡喷头在第一实施方式中的第三实施例的剖视图;
图8是沿着图4的剖面线A-A截取的本发明微气泡喷头在第一实施方式中的第四实施例的剖视图;
图9是本发明微气泡喷头在第二实施方式中的实施例的立体示意图;
图10是图9所示的本发明微气泡喷头在第二实施方式中的实施例的俯视图;
图11是图9所示的本发明微气泡喷头在第二实施方式中的实施例的左视图;
图12是图9所示的本发明微气泡喷头在第二实施方式中的实施例的正视图;
图13是沿着图12的剖面线A-A截取的本发明微气泡喷头在第二实施方式中的实施例的剖视图;
图14是沿着图12的剖面线B-B截取的本发明微气泡喷头在第二实施方式中的实施例的剖视图;
图15是本发明微气泡喷头在第二实施方式中的第一实施例的立体分解图;
图16是本发明微气泡喷头在第二实施方式中的第二实施例的立体分解图;
图17是本发明微气泡喷头在第三实施方式中的实施例的俯视图;
图18是本发明微气泡喷头在第三实施方式中的实施例的左视图;
图19是本发明微气泡喷头在第三实施方式中的实施例的正视图;
图20是沿着图19的剖面线A-A截取的本发明微气泡喷头在第三实施方式中的第一实施例的剖视图;
图21是沿着图19的剖面线A-A截取的本发明微气泡喷头在第三实施方式中的第二实施例的剖视图;
图22是沿着图19的剖面线A-A截取的本发明微气泡喷头在第三实施方式中的第三实施例的剖视图;
图23是沿着图19的剖面线A-A截取的本发明微气泡喷头在第三实施方式中的第四实施例的剖视图。
附图标记列表:
1、波轮洗衣机;11、箱体;12、盘座;13;上盖;14、波轮洗衣机的地脚;21、外桶;31、内桶;311、脱水孔;32、波轮;33、波轮洗衣机的传动轴;34、波轮洗衣机的电机;35、平衡环;41、排水阀;42、排水管;51、进水阀;9、滚筒洗衣机;91、外壳;92、外筒;93、内筒;931、滚筒洗衣机的电机;932、滚筒洗衣机的传动轴;933、轴承;94、上台面板;95、控制面板;96、观察窗;97、门体;98、滚筒洗衣机的地脚。
第一实施方式:52、微气泡喷头;521、一体式喷管;522、微气泡滤网袋;523、卡簧;524、出水空间;211、进口端;212、出口端;212a、出口端的内壁;213、止脱部;214A、第一固定安装部;214B、第二固定安装部;215、定位部;216、吸气口;216a、第一吸气口;216b、第二吸气口;217、直径变小锥形通道部;217a、第一级直径变小锥形通道;217b、第二级直径变小锥形通道;218、喷孔;219、扰流部;221、微气泡滤网袋的底部;222、微气泡滤网袋的侧壁;223、微气泡滤网袋的开口;300、环形间隙。
第二实施方式:52、微气泡喷头;521、一体式喷管;522、微气泡起泡器;211、进口端;212、出口端;212a、外螺纹;212b、卡槽;213、止脱部;214A、第一固定安装部;214B、第二固定安装部;215、定位部;216、吸气口;217、喷孔;218、扰流部;219、直径变小锥形通道部;219a、第一级直径变小锥形通道;219b、第二级直径变小锥形通道;221、滤网;221a、第一级滤网;221b、第二级滤网;222;固定件;223、固定件的溢流口;224;第二级滤网的连接部;225、网架;226、网架的溢流口;300、环形间隙。
第三实施方式:52、微气泡喷头;521、一体式喷管;522、微气泡网;523、压环;211、进口端;212、出口端;213、止脱部;214A、第一固定安装部;214B、第二固定安装部;215、定位部;216、吸气口;217、直径变小锥形通道部;217a、扰流部;217b、第一级直径变小锥形通道;217c、第二级直径变小锥形通道;218、喷孔;300、环形间隙。
具体实施方式
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是,这些实施方式仅仅用于解释本发明的技术原理,并非旨在限制本发明的保护范围。
需要说明的是,在本发明的描述中,术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系,这仅仅是为了便于描 述,而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性。
此外,还需要说明的是,在本发明的描述中,除非另有明确的规定和限定,术语“安装”、“设置”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是直接相连,也可以通过中间媒介间接相连,还可以是两个元件内部的连通。对于本领域技术人员而言,可根据具体情况理解上述术语在本发明中的具体含义。
第一实施方式
为了解决现有微气泡产生器的结构复杂、制造成本高的问题,本发明提供了一种微气泡喷头。在第一实施方式,该微气泡喷头包括一体式喷管521和固定在一体式喷管521的出口端212内的微气泡滤网袋522(参见图3-8)。在一体式喷管521内设有文丘里管结构。在一体式喷管上设有吸气口216,使得空气能够借助由文丘里管结构制造的负压通过吸气口216被吸入一体式喷管521并且与一体式喷管521内的水流混合产生气泡水。微气泡滤网袋522包括开口223、底部221和位于开口223与底部221之间的侧壁222,开口223朝向文丘里管结构,并且在侧壁222与出口端212的内壁212a之间形成出水空间524以便气泡水能够穿过侧壁222和底部221而形成微气泡水。因此,相比于现有技术的微气泡发生器,本发明微气泡喷头的部件数量和结构都被大大简化,并且微气泡喷头的制造成本也大幅降低,同时该微气泡喷头却具有非常好的微气泡水产生性能。
在一种多种实施例中,文丘里管结构能够采用很多种不同形式的结构,例如直径变小锥形通道部217(如图5-8所示)。替代地,文丘里管结构包括但不限于沿着水流方向C具有相互平行的多个直径变小锥形通道的结构,沿着水流方向C具有单个节流孔的结构,沿着水流方向C具有相互平行的多个节流孔的结构,沿着水流方向C具有单个直径先变小后变大通道的结构,或者沿着水流方向C具有相互平行的多个直径先变小后变大通道的结构(图中未示出)。
本发明微气泡喷头可以应用在洗涤领域,杀菌领域,或者其它需要微气泡的领域。例如,本发明微气泡喷头既能够应用到洗涤设备中,也能够结合到卫浴水龙头或花洒等装置中。
因此,本发明还提供一种洗涤设备,该洗涤设备包括本发明的微气泡喷头52。该微气泡喷头52设置成在该洗涤设备内产生微气泡水。通过微气泡喷头52在洗涤设备内产生含有大量微气泡的微气泡水,不仅能够提高洗涤设备的洗净能力,而且能够减少洗涤剂的用量并降低洗涤剂在例如衣物中的残留量,从而不仅有利于用户的健康,而且还能改善用户的体验。
参照图1,图1是本发明具有微气泡喷头的洗涤设备的一种实施例的结构示意图。在该实施例中,洗涤设备为一种波轮洗衣机1。替代地,在其它实施例中,洗涤设备可以是滚筒洗衣机或烘干一体机等。
如图1所示,波轮洗衣机1(以下简称洗衣机)包括箱体11。在箱体11的底部设有地脚14。箱体11的上部设置有盘座12,盘座12枢转连接有上盖13。在箱体11内设置有作为盛水桶的外桶21。在外桶21内设置有内桶31,内桶31的底部设置有波轮32,外桶21的下部固定有电机34,电机34通过传动轴33与波轮32驱动连接,在内桶31的侧壁上设有脱水孔311。排水阀41设置在排水管42上,排水管42的上游端与外桶21的底部连通。该洗衣机还包括进水阀51和与进水阀51连通的微气泡喷头52,微气泡喷头52被安装在外桶21的顶部上。水经由进水阀51进入微气泡喷头52以产生包含大量微气泡的微气泡水,微气泡喷头52将微气泡水先喷入洗涤剂盒以与洗涤剂混合,然后经由洗涤剂盒进入内桶31,用于衣物清洗。水中的微气泡在 破碎过程中对洗涤剂产生撞击,并且微气泡通过携带的负电荷也能够吸附洗涤剂,因此微气泡能够增加洗涤剂与水的混合程度,从而降低洗涤剂的用量并减少洗涤剂在衣物上的残留量。另外,微气泡在内桶31内也会撞击衣物上的污渍,并且会吸附产生污渍的异物。因此,微气泡还增强了洗衣机的去污性能。可选地,微气泡喷头还可以直接将携带大量微气泡的微气泡水喷入洗衣机的外桶21或内桶31,以进一步降低洗涤剂的用量并增强洗衣机的清洁能力。
参照图2,图2是本发明具有微气泡喷头的洗涤设备的另一种实施例的结构示意图。在该实施例中,洗涤设备为一种滚筒洗衣机9。
如图2所示,滚筒洗衣机9包括外壳91和位于外壳底部的地脚98。在外壳91的顶部设有上台面板94。外壳91的前侧(面对用户的操作侧)上设有允许用户向滚筒洗衣机内装填衣物等的门体97,而门体97上还设有能够看到洗衣机内部的观察窗96。在观察窗96与外壳91之间还设置密封窗垫961,并且该密封窗垫961固定在外壳91上。滚筒洗衣机9的控制面板95布置在外壳91的前侧的上部,以便于用户的操作。在外壳91的内部则布置有外筒92和内筒93。内筒93定位在外筒92的内部。内筒93通过传动轴932和轴承933连接到电机931(例如直驱电机)。在外壳91的后侧的上部上设有进水阀51,该进水阀51通过水管连接到微气泡喷头52。如图2所示,微气泡喷头52定位靠近外壳91的前侧上部,并且位于控制面板95的下方。类似于上述实施例,水经由进水阀51通过水管进入微气泡喷头52以产生包含大量微气泡的微气泡水,微气泡喷头52将微气泡水先喷入洗涤剂盒以与洗涤剂混合,然后经由洗涤剂盒进入内筒93,用于衣物清洗。可选地,微气泡喷头52还可以直接将携带大量微气泡的微气泡水喷入洗衣机的外筒92或内筒93,以进一步降低洗涤剂的用量并增强洗衣机的清洁能力。
参照图3和图4,图3和图4是本发明微气泡喷头的实施例的示意图,其中,图3是是本发明微气泡喷头的实施例的俯视图,而图4是本发明微气泡喷头的实施例的正视图。如图3和图4所示,在一种或多种实施例中,本发明微气泡喷头52包括一体式喷管521。在一体式喷管521的出口端212内安装有微气泡滤网袋522,该微气泡滤网袋522配置成能够在气泡水流过其时切割和混合气泡水而产生含有大量微气泡的大量微气泡水。
参照图3和图4,在一种或多种实施例中,一体式喷管521具有进口端211和出口端212。在出口端212内固定有微气泡滤网袋522,而进口端211则用于连接到外部水源。可选地,在进口端211上可设置止脱部213,例如围绕进口端211的外壁径向向外隆起的止脱筋或者进口端211的外壁向内凹进的环形沟槽结构,能够防止一体式喷管521从其所连接的提供水源的管道上脱落。
继续参照图3和图4,在一种或多种实施例中,在一体式喷管521的外壁上设有第一固定安装部214A,第二固定安装部214B,以及定位部215,用于将微气泡喷头52定位和固定到预定位置。
继续参照图3和图4,第一固定安装部214A和第二固定安装部214B对称地定位在一体式喷管521的外壁上,并且位于一体式喷管521的中部。定位部215则为长条肋,从一体式喷管521的外壁径向向外突出,并且沿着一体式喷管521的纵向延伸。第一固定安装部214A和第二固定安装部214B分布在定位部215的两侧。可选地,在一体式喷管521上只设置一个固定安装部,而定位部215也可以采用其它合适的形式。
在一种或多种实施例中,第一和第二固定安装部214A,214B为螺钉孔结构,以通过螺钉将喷头52固定到目标位置。然而,固定安装部可采用任何合适的连接结构,例如卡扣连接结构、焊接连接结构等。
图5是沿着图4的剖面线A-A截取的本发明微气泡喷头的第一实施例的剖视图。参照图5,在一种或多种实施例中,在一体式喷管521内,设有直径变小锥形通道部217。在直径变小锥形通道部217内沿着水流方向C形成第一级直径变小锥形通道217a和第二级直径变小锥 形通道217b,并且在直径变小锥形通道部217的下游端上设有喷孔218。喷孔218定位靠近一体式喷管521的出口端212。喷孔218与上游的第二级直径变小锥形通道217b和位于一体式喷管521内的下游通道直接连通。第一级直径变小锥形通道217a从一体式喷管521的进口端211向下游延伸到第二级直径变小锥形通道217b,并且第一级直径变小锥形通道217a的处于其下游端的最小直径大于第二级直径变小锥形通道217b的最大直径。在替代的一种或多种实施例中,在直径变小锥形通道部217内沿着水流方向C既可以形成一级直径变小锥形通道,也可以形成多于两级的直径变小锥形通道,例如三级或更多级的直径变小锥形通道。
在本文中所说的“直径变小锥形通道部”是指形成在该部分内部的通道沿着水流方向直径或横截面逐渐变小从而使该通道呈大致锥形的结构。
如图5所示,在一种或多种实施例中,直径变小锥形通道部217的对应第二级直径变小锥形通道217b的部分的外壁与一体式喷管521的内壁分离,从而在该部分的外壁与一体式喷管521的内壁之间形成环形间隙300。该环形间隙300有助于空气与水流的混合,进而产生更多的微气泡。
如图5所示,一体式喷管521上还形成有吸气口216。在一种或多种实施例中,该吸气口216形成在一体式喷管521的管壁上并且定位靠近喷孔218,因此也靠近出口端212。水流从一体式喷管521的进口端211进入,先流过第一级直径变小锥形通道217a,再流入第二级直径变小锥形通道217b,从而得到加压。加压后的水流从喷孔218喷出进入一体式喷管521的下游通道并且被快速地膨胀,因此在一体式喷管521的下游通道内产生负压。在负压的作用下,大量外部空气从吸气口216被吸入一体式喷管521并且与其中的水流混合而产生气泡水。气泡水然后流过微气泡滤网袋522时被切割和混合,从而生成微气泡水。
如图5所示,在一种或多种实施例中,微气泡滤网袋522包括底部221、开口223和在开口223和底部221之间延伸的环形的侧壁222。开口223朝向一体式喷管521的内部,面对喷孔218并且环绕该喷孔218。可选地,底部221暴露在一体式喷管521的外部。换言之,侧壁222可向外延伸超出出口端212的端面。在侧壁222与出口端212的内壁212a之间留有预定的环形间隙,该环形间隙形成出水空间524。从喷孔218喷出的水流因此能够在微气泡滤网袋218内快速膨胀并且与通过吸气口216吸入的大量空气混合形成气泡水。由于出水空间524的存在,该气泡水不仅能够通过微气泡滤网袋522的底部221而且也能够通过微气泡滤网袋55的侧壁222,因此被底部221和侧壁222二者的网孔混合和切割而产生大量的微气泡水。
在一种或多种实施例中,微气泡滤网袋522通过卡簧523,例如金属的卡簧,固定在出口端212的内壁212a上。替代地。微气泡滤网袋522也能够通过其它方式固定在一体式喷管521的内壁上,例如粘接或熔接。
在一种或多种实施例中,微气泡滤网袋522由至少两层滤网形成。滤网层数越多,微气泡的产生效果就越好,但是水流的阻力也随之增大。优选地,微气泡滤网袋522的滤网层数大于等于3小于等于12。或者优选地,微气泡滤网袋522的滤网层数大于等于3小于等于5。多层滤网能够保证气泡水得到更精细地切割和更大程度的混合,因此能够制造更小直径的微气泡。
在一种或多种实施例中,微气泡滤网袋522的滤网具有至少一道细孔的直径达微米级。优选地,细孔的直径在0~1000微米之间;更优选地,细孔的直径在5~500微米之间。在一种或多种实施例中,微气泡滤网袋522可以是由金属网或者高分子材料网制成,或者由其它合适的孔网结构制成。金属网包括但不限于不锈钢丝、镍丝、黄铜丝等材料。高分子材料网通常是指通过先将高分子材料制成丝,再用这丝编织成的具有微孔结构的网。在编织密纹网中,纬丝聚密排列,这可以通过以下编织方法织成:平纹编织,斜纹编织,平纹荷兰编织, 斜纹荷兰编织,或反向荷兰编织。高分子材料网包括但不限于尼龙(涤纶)网,棉纶网,丙纶网等。例如,滤网可以由棉纶网形成。
图6是沿着图4的剖面线A-A截取的本发明微气泡喷头的第二实施例的剖视图。如图6所示,在一体式喷管521内也形成有直径变小锥形通道部217。在直径变小锥形通道部217内沿着水流方向C形成第一级直径变小锥形通道217a和第二级直径变小锥形通道217b,并且在直径变小锥形通道部217的下游端上设有喷孔218。喷孔218定位靠近一体式喷管521的出口端212,并且吸气口216定位靠近喷孔218。在该实施例中,在直径变小锥形通道部217的对应第二级直径变小锥形通道217b的内壁上形成有扰流部219,以增加水流的紊流,从而提高水与空气的混合程度。在一种或多种实施例中,扰流部219是沿着该级直径变小锥形通道的内壁纵向延伸的至少一个扰流筋,例如多个扰流筋。在替代的实施例中,扰流部219可以是在该级直径变小锥形通道的内壁上的至少一个径向突起部,例如一个或多个的柱状突起。可选,扰流部219可以只形成在对应第一级直径变小锥形通道的内壁上,或者形成在对应每级直径变小锥形通道的内壁上,或者形成在对应多于一级直径变小锥形通道的内壁上。该实施例的其它未提及部分同上述实施例。
图7是沿着图4的剖面线A-A截取的本发明微气泡喷头的第三实施例的剖视图。如图7所示,在该实施例中,在一体式喷管521内也形成有直径变小锥形通道部217。在直径变小锥形通道部217内沿着水流方向C形成第一级直径变小锥形通道217a和第二级直径变小锥形通道217b,并且在直径变小锥形通道部217的下游端上设有喷孔218。喷孔218定位靠近一体式喷管521的进口端211,但是吸气口216定位靠近一体式喷孔521的出口端212,因此也靠近微气泡滤网袋522。在该实施例中,吸气口216仍然处于由喷孔218所制造的负压作用范围内,因此当水流从喷孔218膨胀地喷入一体式喷管521的下游通道中时,外界空气在负压的作用下从吸气口216被吸入一体式喷管521并与水流混合。在该实施例中,在直径变小锥形通道部217的对应第二级直径变小锥形通道217b的内壁上也形成有扰流部219,例如是沿着该内壁纵向延伸的多个扰流筋。本实施例中未提及的部分同上述实施例。
图8是沿着图4的剖面线A-A截取的本发明微气泡喷头的第四实施例的剖视图。如图8所示,在该实施例中,在一体式喷管521内也形成有直径变小锥形通道部217。在直径变小锥形通道部217内沿着水流方向C形成第一级直径变小锥形通道217a和第二级直径变小锥形通道217b,并且在直径变小锥形通道部217的下游端上设有喷孔218。喷孔218定位靠近一体式喷管521的进口端211。在该实施例中,一体式喷管521上设有第一吸气口216a和第二吸气口216b。第一吸气口216a定位靠近喷孔218,因此靠近进口端211。第二吸气口216b定位靠近一体式喷孔521的出口端212,因此也靠近微气泡滤网袋522。同时设置第一和第二吸气口有助于吸入更多的外界空气,从而产生更多的微气泡。在该实施例中,在直径变小锥形通道部217的对应第二级直径变小锥形通道217b的内壁上也形成有扰流部219,例如是沿着该内壁纵向延伸的多个扰流筋。本实施例中未提及的部分同上述实施例。
第二实施方式
为了解决现有微气泡产生器的结构复杂、制造成本高的问题,本发明提供了一种微气泡喷头。在第二实施方式中,该微气泡喷头包括一体式喷管521和固定在一体式喷管521的出口端212上的微气泡起泡器522(参见图9-16)。在一体式喷管521内设有直径变小锥形通道部219。在直径变小锥形通道部219内沿着水流方向C形成至少一级直径变小锥形通道。在直径变小锥形通道部219的下游端上形成有喷孔217,该喷孔217配置成在经过至少一级直径变小锥形通道加压的水流从该喷孔217喷出后在一体式喷管521内产生负压。在一体式喷管521上设有吸气口216,该吸气口216定位靠近喷孔217,以便空气借助负压通过吸气口216被吸入一体式喷管521并且与水流混合产生气泡水。微气泡起泡器522沿着水流方向C包括相互间隔预定距 离的至少两级滤网221以将气泡水变成微气泡水。因此,相比于现有技术的微气泡发生器,本发明微气泡喷头的部件数量和结构都被大大简化,并且微气泡喷头的制造成本也大幅降低,但是微气泡喷头却具有很好的微气泡产生性能。
在本文中所说的“直径变小锥形通道部”是指形成在该部分内部的通道的直径或横向于水流方向的截面逐渐变小从而使该通道呈大致锥形的结构。
本发明微气泡喷头可以应用在洗涤领域,杀菌领域,或者其它需要微气泡的领域。例如,本发明微气泡喷头既能够应用到洗涤设备中,也能够结合到卫浴水龙头或花洒等装置中。
因此,本发明还提供一种洗涤设备,该洗涤设备包括本发明的微气泡喷头52。该微气泡喷头52设置成在该洗涤设备内产生微气泡水。通过微气泡喷头在洗涤设备内产生含有大量微气泡的微气泡水,不仅能够提高洗涤设备的洗净能力,而且能够减少洗涤剂的用量并降低洗涤剂在例如衣物中的残留量,从而不仅有利于用户的健康,而且还能改善用户的体验。
参照图1,图1是本发明具有微气泡喷头的洗涤设备的一种实施例的结构示意图。在该实施例中,洗涤设备为一种波轮洗衣机1。替代地,在其它实施例中,洗涤设备可以是滚筒洗衣机或烘干一体机等。
如图1所示,波轮洗衣机1(以下简称洗衣机)包括箱体11。在箱体11的底部设有地脚14。箱体11的上部设置有盘座12,盘座12枢转连接有上盖13。在箱体11内设置有作为盛水桶的外桶21。在外桶21内设置有内桶31,内桶31的底部设置有波轮32,外桶21的下部固定有电机34,电机34通过传动轴33与波轮32驱动连接,在内桶31的侧壁上靠近顶端设有脱水孔311。排水阀41设置在排水管42上,排水管42的上游端与外桶21的底部连通。该洗衣机还包括进水阀51和与进水阀51连通的微气泡喷头52,微气泡喷头52被安装在外桶21的顶部上。水经由进水阀51进入微气泡喷头52以产生包含大量微气泡的微气泡水,微气泡喷头52将微气泡水先喷入洗涤剂盒以与洗涤剂混合,然后经由洗涤剂盒进入内桶31,用于衣物清洗。水中的微气泡在破碎过程中对洗涤剂产生撞击,并且微气泡通过携带的负电荷也能够吸附洗涤剂,因此微气泡能够增加洗涤剂与水的混合程度,从而降低洗涤剂的用量并减少洗涤剂在衣物上的残留量。另外,微气泡在内桶31内也会撞击衣物上的污渍,并且会吸附产生污渍的异物。因此,微气泡还增强了洗衣机的去污性能。可选地,微气泡喷头还可以直接将携带大量微气泡的微气泡水喷入洗衣机的外桶21或内桶31,以进一步降低洗涤剂的用量并增强洗衣机的清洁能力。
参照图2,图2是本发明具有微气泡喷头的洗涤设备的另一种实施例的结构示意图。在该实施例中,洗涤设备为一种滚筒洗衣机9。
如图2所示,滚筒洗衣机9包括外壳91和位于外壳底部的地脚98。在外壳91的顶部设有上台面板94。外壳91的前侧(面对用户的操作侧)上设有允许用户向滚筒洗衣机内装填衣物等的门体97,而门体97上还设有能够看到洗衣机内部的观察窗96。在观察窗96与外壳91之间还设置密封窗垫961,并且该密封窗垫961固定在外壳91上。滚筒洗衣机9的控制面板95布置在外壳91的前侧的上部,以便于用户的操作。在外壳91的内部则布置有外筒92和内筒93。内筒93定位在外筒92的内部。内筒93通过传动轴932和轴承933连接到电机931(例如直驱电机)。在外壳91的后侧的上部上设有进水阀51,该进水阀51通过水管连接到微气泡喷头52。如图2所示,微气泡喷头52定位靠近外壳91的前侧上部,并且位于控制面板95的下方。类似于上述实施例,水经由进水阀51通过水管进入微气泡喷头52以产生包含大量微气泡的微气泡水,微气泡喷头52将微气泡水先喷入洗涤剂盒以与洗涤剂混合,然后经由洗涤剂盒进入内筒93, 用于衣物清洗。可选地,微气泡喷头52还可以直接将携带大量微气泡的微气泡水喷入洗衣机的外筒92或内筒93,以进一步降低洗涤剂的用量并增强洗衣机的清洁能力
参照图9-图14,图9-图14是本发明微气泡喷头在第二实施方式中的实施例的示意图,其中,图9是是本发明微气泡喷头在第二实施方式中的实施例的立体示意图,图10是图9所示的本发明微气泡喷头在第二实施方式中的实施例的俯视图,图11是图9所示的本发明微气泡喷头在第二实施方式中的实施例的左视图,图12是图9所示的本发明微气泡喷头在第二实施方式中的实施例的正视图,以及图13和图14分别是沿着图11的剖面线A-A和B-B截取的本发明微气泡喷头在第二实施方式中的实施例的剖视图。如图9-14所示,在一种或多种实施例中,本发明微气泡喷头52包括一体式喷管521。在一体式喷管521的出口端212上安装有微气泡起泡器522,起泡器522配置成能够在气泡水流过其时切割和混合气泡水而产生含有大量微气泡的微气泡水。
参照图9,在一种或多种实施例中,一体式喷管521具有进口端211和出口端212。在出口端212上固定有微气泡起泡器522,而进口端211则用于连接到外部水源。可选地,在进口端211上可设置止脱部213,例如围绕进口端211的外壁径向向外隆起的止脱筋或者进口端211的外壁向内凹进的环形沟槽结构,能够防止一体式喷管从其所连接的提供水源的管道上脱落。
继续参照图9,在一种或多种实施例中,在一体式喷管521的外壁上设有第一固定安装部214A,第二固定安装部214B,以及定位部215,用于将微气泡喷头52定位和固定到预定位置。
参照图10-图12,第一固定安装部214A和第二固定安装部214B对称地定位在一体式喷管521的外壁上,并且位于一体式喷管521的中部。定位部215则为长条肋,从一体式喷管521的外壁径向向外突出,并且沿着一体式喷管521的纵向延伸。第一固定安装部214A和第二固定安装部214B分布在定位部215的两侧。可选地,在一体式喷管521上只设置一个固定安装部,而定位部215也可以采用其它合适的形式。
在一种或多种实施例中,第一和第二固定安装部214A,214B为螺钉孔结构,以通过螺钉将喷头52固定到例如洗涤设备上的目标位置。然而,固定安装部可采用任何合适的连接结构,例如卡扣连接结构、焊接连接结构等。
参照图13和图14,在一体式喷管521内设有直径变小通道部219,并且在直径变小锥形通道部219内沿着水流方向C设有第一级直径变小锥形通道219a和第二级直径变小锥形通道219b。第一级直径变小锥形通道219a从一体式喷管521的进口端211开始延伸到第二级直径变小锥形通道219b。在直径变小通道部219的下游端上形成有喷孔217。该喷孔217直接连通位于其上游的第二级直接变小锥形通道219b和位于其下游的一体式喷管521内的下游通道,因此将第一级直径变小锥形通道219a和第二级直径变小锥形通道219b与一体式喷管521的下游通道连通在一起。优选地,喷孔217的直径在0-6mm的范围内;更优选地,喷孔217的直径在1.2-3.5mm的范围内。在替代的一种或多种实施例中,在直径变小锥形通道部219内可以只形成一级直径变小锥形通道,也可以形成多于两级的更多级直径变小锥形通道。
继续参照图13和图14,在围成第二级直径变小锥形通道219b的内壁上形成有扰流部218。在一种或多种实施例中,扰流部218是沿着该级直径变小锥形通道的内壁纵向延伸的至少一个扰流筋,例如多个扰流筋。在替代的实施例中,扰流部218可以是在该级直径变小锥形通道的内壁上的至少一个径向突起部,例如一个或多个的柱状突起。在替代的实施例中,扰流部218也可以形成在围成第一级直径变小锥形通道219b的内壁上,或者每一级直径变小锥形通道的内壁上都形成有扰流部。
如图13和图14所示,直径变小通道部219的对应第二级直径变小锥形通道219b的部分的外壁与一体式喷管521的内壁分离,从而在外壁与一体式喷管521的内壁之间形成环形间隙300。该环形间隙300有助于空气与水流的混合,进而产生更多的微气泡。
如图13和图14所示,一体式喷管521的外壁上形成有两排布置成环形的多个吸气口216。这些吸气口216定位都靠近喷孔217。水流从进口端211进入,先流过第一级和第二级直径变小锥形通道219a、219b而被逐级加压,而扰流部218则进一步加大水流的涡流。加速后的水流从喷孔217被快速膨胀地喷入到一体式喷管521的下游通道,并且在其中产生负压。在负压的作用下,大量外部空气从吸气口216沿着方向E被吸入一体式喷管521并且与其中的水流混合而产生气泡水。在替代的实施例中,根据需要,可以设置更多或更少的吸气口,并且能够以其它方式排布,例如以交错方式排列。气泡水然后流向微气泡起泡器522。
如如图13和图14所示,微气泡起泡器522沿着水流方向C包括第一级滤网221a和第二级滤网221b。第一级滤网221a和第二级滤网221b布置成相互平行并且间隔预定的距离。第一级滤网221a具有的滤网层数要少于第二级滤网221b的滤网层数。在一种或多种实施例中,第一级滤网221a具有一层滤网,而第二级滤网221b具有两层或三层滤网。替代地,第一级滤网221a也具有多于一层的滤网。气泡水在经过第一级滤网221a的切割和混合后,再经过第二级滤网221b的更加精细地切割和混合,从而产生更多、更小直径的微气泡。在替代的实施例中,微气泡起泡器可以包括多于两级的滤网,以制造更小直径的微气泡。
在一种或多种实施例中,第一级滤网221a和第二级滤网221b都具有至少一道细孔的直径达微米级。优选地,细孔的直径在0~1000微米之间;更优选地,细孔的直径在5~500微米之间。第一级滤网221a和第二级滤网221b可以是塑料栅栏,金属网,高分子材料网,或者其它合适的孔网结构。塑料栅栏通常是指高分子栅栏,其由高分子材料一体注塑成型,或者先将高分子材料制成板,再在该板上通过机加工产生微孔结构而形成塑料栅栏。高分子材料网通常是指通过先将高分子材料制成丝,再用这丝编织成的具有微孔结构的网。高分子材料网可以包括尼龙网,棉纶网,涤纶网,丙纶网等。替代地,第一级滤网221a和第二级滤网221b可以是能够产生微气泡的其它孔网结构,例如由两个非微米级的蜂窝状结构组成的孔网结构。
图15是本发明微气泡喷头在第二实施方式中的第一实施例的立体分解图。如图15所示,在该实施例中,微气泡起泡器522包括用于将第一级滤网221a和第二级滤网221b固定在一起的网架225和将网架225固定到一体式喷管521的出口端212上的固定件222。
在一种或多种实施例中,网架225为圆环状。如图13-14所示,第一级滤网221a和第二级滤网221b分别附接在网架225的轴向两端上,具体的附接方法包括但不限于二次成型、粘合或熔覆。在一种或多种实施例中,在网架225的周向表面上形成有多个溢流口(或溢流孔)226。在喷射水流流量比较大时,允许部分水从这些溢流口226溢出,由此不仅能够帮助清洁滤网,而且还能阻止多余的水逆流通过吸气口而导致无法通过这些吸气口吸入空气。在喷射水流流量比较小时,这些溢流口226还能够充当辅助的吸气口,用于吸入更多的空气。
在一种或多种实施例中,固定件222为大致圆筒状,具有内直径大于一体式喷管521的出口端212的外直径的第一端和开口内直径小于一体式喷管521的出口端212的内直径的第二端。在第一端的内壁上形成有内螺纹(图中未示出),该内螺纹能够啮合形成在一体式喷管521的出口端212上的外螺纹212a。当固定件222被紧固在一体式喷管521的出口端212上时,网架225连同第一级滤网221a和第二级滤网221b被压在一体式喷管521的出口端212的端面与固定件222的第二端的内端面之间。
可选地,在固定件222的外周上设有多个溢流口(或溢流孔)223,并且这些溢流口定位靠近固定件222的第二端。当气泡水不能及时从第一级滤网221a和/或第二级滤网 221b通过时,多余的气泡水能够从溢流口223流出,从而能够防止多余的水回流而淹没吸气口216。因此,溢流口223能够阻止因吸气口被堵而使空气无法被吸入一体式喷管因此无法产生微气泡水的情形。在替代的实施例中,根据需要,可以设置更多或更少的溢流口223。
可选地,在啮合的外螺纹212a与固定件222的内螺纹之间可以预留设定的间隙以允许空气通过该间隙被吸入一体式喷管521。在替代的实施例中,固定件222可以通过其它连接方式与一体式喷管521的出口端212连接,例如卡扣、螺钉连接、或焊接等方式。
可选地,在第二级滤网221b的周边上设有连接部224。网架225将该连接部224压在固定件222的第二端的内端面上,从而能够牢固地固定第二级滤网221b,使得第二级滤网221b在经受高压水流冲击的时候不会从一体式喷管521的出口端212上脱落。本实施例中未提及的部分同上述实施例。
图16是本发明微气泡喷头在第二实施方式中的第二实施例的立体分解图。如图16所示,在该实施例中,结合有第一级滤网221a和第二级滤网221b的网架225直接固定在一体式喷管521的出口端212上。在一种或多种实施例中,网架225的朝向一体式喷管521的出口端212的轴向端上设有卡臂227。对应地,在一体式喷管521的出口端212上设有卡槽212b。通过将卡臂227卡在卡槽212b中,网架225就被直接固定在出口端212上,不再需要另外制作的固定件。替代地,网架225也可以通过螺纹连接或焊接等方式固定到一体式喷管521的出口端212上。可选地,在该实施例中,在网架225的周向表面上形成有多个溢流口(或溢流孔)226。这些溢流口226能够阻止因吸气口被堵而使空气无法被吸入一体式喷管因此无法产生微气泡水的情形。本实施例中未提及的部分同上述实施例。
第三实施方式
为了解决现有微气泡产生器的结构复杂、制造成本高的问题,本发明提供了一种微气泡喷头,该微气泡喷头包括一体式喷管521和微气泡网522(参见图3-9)。在一体式喷管521内设有直径变小锥形通道部217。在直径变小锥形通道部217内沿着水流方向C形成有至少一级直径变小锥形通道,并且在直径变小锥形通道部217的下游端上形成有喷孔218。该喷孔218配置成使得流过至少一级直径变小锥形通道的水流从该喷孔喷出并且在一体式喷管521内产生负压。在一体式喷管521的管壁上设有吸气口216,该吸气口216定位成使得空气能够借助负压通过吸气口216被吸入一体式喷管521并且与水流混合产生气泡水。气泡水通过微气泡网522变成微气泡水。因此,相比于现有技术的微气泡发生器,本发明微气泡喷头的部件数量和结构都被大大简化,并且微气泡喷头的制造成本也大幅降低,同时微气泡喷头却具有良好的产生微气泡的性能。
在本文中所说的"直径变小锥形通道部"是指形成在该部分内部的通道沿着水流方向直径逐渐变小从而使该通道呈锥形的结构。
本发明微气泡喷头可以应用在洗涤领域,杀菌领域,或者其它需要微气泡的领域。例如,本发明微气泡喷头既能够应用到洗涤设备中,也能够结合到卫浴水龙头或花洒等装置中。
因此,本发明还提供一种洗涤设备,该洗涤设备包括本发明的微气泡喷头52。该微气泡喷头52设置成在该洗涤设备内产生微气泡水。通过微气泡喷头52在洗涤设备内产生含有大量微气泡的微气泡水,不仅能够提高洗涤设备的洗净能力,而且能够减少洗涤剂的用量并降低洗涤剂在例如衣物中的残留量,从而不仅有利于用户的健康,而且还能改善用户的体验。
参照图1,图1是本发明具有微气泡喷头的洗涤设备的一种实施例的结构示意图。在该实施例中,洗涤设备为一种波轮洗衣机1。替代地,在其它实施例中,洗涤设备可以是滚筒洗衣机或烘干一体机等。
如图1所示,波轮洗衣机1(以下简称洗衣机)包括箱体11。在箱体11的底部设有地脚14。箱体11的上部设置有盘座12,盘座12枢转连接有上盖13。在箱体11内设置有作为盛水桶的外桶21。在外桶21内设置有内桶31,内桶31的底部设置有波轮32,外桶21的下部固定有电机34,电机34通过传动轴33与波轮32驱动连接,在内桶31的侧壁上设有脱水孔311。排水阀41设置在排水管42上,排水管42的上游端与外桶21的底部连通。该洗衣机还包括进水阀51和与进水阀51连通的微气泡喷头52,微气泡喷头52被安装在外桶21的顶部上。水经由进水阀51进入微气泡喷头52以产生包含大量微气泡的微气泡水,微气泡喷头52将微气泡水先喷入洗涤剂盒以与洗涤剂混合,然后经由洗涤剂盒进入内桶31,用于衣物清洗。水中的微气泡在破碎过程中对洗涤剂产生撞击,并且微气泡通过携带的负电荷也能够吸附洗涤剂,因此微气泡能够增加洗涤剂与水的混合程度,从而降低洗涤剂的用量并减少洗涤剂在衣物上的残留量。另外,微气泡在内桶31内也会撞击衣物上的污渍,并且会吸附产生污渍的异物。因此,微气泡还增强了洗衣机的去污性能。可选地,微气泡喷头还可以直接将携带大量微气泡的微气泡水喷入洗衣机的外桶21或内桶31,以进一步降低洗涤剂的用量并增强洗衣机的清洁能力。
参照图2,图2是本发明具有微气泡喷头的洗涤设备的另一种实施例的结构示意图。在该实施例中,洗涤设备为一种滚筒洗衣机9。
如图2所示,滚筒洗衣机9包括外壳91和位于外壳底部的地脚98。在外壳91的顶部设有上台面板94。外壳91的前侧(面对用户的操作侧)上设有允许用户向滚筒洗衣机内装填衣物等的门体97,而门体97上还设有能够看到洗衣机内部的观察窗96。在观察窗96与外壳91之间还设置密封窗垫961,并且该密封窗垫961固定在外壳91上。滚筒洗衣机9的控制面板95布置在外壳91的前侧的上部,以便于用户的操作。在外壳91的内部则布置有外筒92和内筒93。内筒93定位在外筒92的内部。内筒93通过传动轴932和轴承933连接到电机931(例如直驱电机)。在外壳91的后侧的上部上设有进水阀51,该进水阀51通过水管连接到微气泡喷头52。如图2所示,微气泡喷头52定位靠近外壳91的前侧上部,并且位于控制面板95的下方。类似于上述实施例,水经由进水阀51通过水管进入微气泡喷头52以产生包含大量微气泡的微气泡水,微气泡喷头52将微气泡水先喷入洗涤剂盒以与洗涤剂混合,然后经由洗涤剂盒进入内筒93,用于衣物清洗。可选地,微气泡喷头52还可以直接将携带大量微气泡的微气泡水喷入洗衣机的外筒92或内筒93,以进一步降低洗涤剂的用量并增强洗衣机的清洁能力。
参照图17-图19,图17-图19是本发明微气泡喷头在第三实施方式的实施例的示意图,其中,图17是本发明微气泡喷头在第三实施方式中的实施例的俯视图,图18是本发明微气泡喷头在第三实施方式中的实施例的左视图,以及图19是本发明微气泡喷头在第三实施方式中的实施例的正视图。如图17-19所示,在一种或多种实施例中,本发明微气泡喷头52包括一体式喷管521。在一体式喷管521的出口端212上安装有微气泡网522,该微气泡网522配置成能够在气泡水流过其时切割和混合气泡水而产生含有大量微气泡的微气泡水。
参照图17-19,在一种或多种实施例中,一体式喷管521具有进口端211和出口端212。在出口端212上固定有微气泡网522,而进口端211则用于连接到外部水源。可选地,在进口端211上可设置止脱部213,例如围绕进口端211的外壁径向向外隆起的止脱筋或者进口端211的外壁向内凹进的环形沟槽结构,能够防止一体式喷管从其所连接的提供水源的管道上脱落。
继续参照图17-19,在一种或多种实施例中,在一体式喷管521的外壁上设有第一固定安装部214A,第二固定安装部214B,以及定位部215,用于将微气泡喷头52定位和固定到预定位置。
参照图17和图19,第一固定安装部214A和第二固定安装部214B对称地定位在一体式喷管521的外壁上,并且位于一体式喷管521的中部。定位部215则为长条肋,从一体式喷 管521的外壁径向向外突出,并且沿着一体式喷管521的纵向延伸。第一固定安装部214A和第二固定安装部214B分布在定位部215的两侧。可选地,在一体式喷管521上只设置一个固定安装部,而定位部215也可以采用其它合适的形式。
在一种或多种实施例中,第一和第二固定安装部214A,214B为螺钉孔结构,以通过螺钉将喷头52固定到目标位置。然而,固定安装部可采用任何合适的连接结构,例如卡扣连接结构、焊接连接结构等。
参照图17-19,在一种或多种实施例中,微气泡网522套在一体式喷管521的出口端212上,并且通过固定装置,例如压环523,固定在一体式喷管521的外壁上。可选地,压环523可以是金属卡簧。替代地,弹性材料的弹性圈(例如橡皮圈)或者塑料扎带等合适材料也可以用来固定微气泡网522。
在一种或多种实施例中,微气泡网522具有至少一道细孔的直径达微米级。优选地,细孔的直径在0~1000微米之间;更优选地,细孔的直径在5~500微米之间。在一种或多种实施例中,微气泡网522可以是金属网或者高分子材料网,或者其它合适的孔网结构。金属网包括但不限于不锈钢丝、镍丝、黄铜丝等材料。高分子材料网通常是指通过先将高分子材料制成丝,再用这丝编织成的具有微孔结构的网。在编织密纹网中,纬丝聚密排列,这可以通过以下编织方法织成:平纹编织,斜纹编织,平纹荷兰编织,斜纹荷兰编织,反向荷兰编织。高分子材料网包括但不限于尼龙(涤纶)网,棉纶网,丙纶网等。例如,微气泡网可以由棉纶网形成。当气泡水流过微气泡网522时,微气泡网522对气泡水产生混合和切割的作用,从而产生微气泡水。
在一种或多种实施例中,微气泡网522具有至少两层的结构。微气泡网522的层数越多,微气泡的产生效果就越好,但是水流的阻力也随之增大。可选地,微气泡网522的层数不小于3并且不大于12。在替代的实施例中,微气泡网522的层数不小于3并且不大于5。
图20是沿着图19的剖面线A-A截取的本发明微气泡喷头在第三实施方式中的第一实施例的剖视图。参照图20,在一种或多种实施例中,在一体式喷管521内,设有直径变小锥形通道部217。直径变小锥形通道部217定位靠近一体式喷管521的进口端211。在直径变小锥形通道部217内沿着水流方向C形成第一级直径变小锥形通道217b,并且在直径变小锥形通道部217的下游端上设有喷孔218。喷孔218分别与上游的第一级直径变小锥形通道217b和位于一体式喷管521内的下游通道连通。在一体式喷管521的进口端211内沿着水流方向C还形成较短的第二级直径变小锥形通道217c。第二级直径变小锥形通道217c向下游直接延伸到第一级直径变小锥形通道217b,并且第二级直径变小锥形通道217c的处于其下游端的最小直径大于第一级直径变小锥形通道217b的最大直径。在替代的一种或多种实施例中,在直径变小锥形通道部217内沿着水流方向C可以形成多于一级的直径变小锥形通道,例如两级、三级或更多级的直径变小锥形通道。
继续参照图20,在直径变小锥形通道部217的内壁上形成有扰流部217a。在一种或多种实施例中,扰流部217a是沿着该直径变小锥形通道部的内壁纵向延伸的至少一个扰流筋,例如多个扰流筋。在替代的实施例中,扰流部217a可以是在该直径变小锥形通道部的内壁上的至少一个径向突起部,例如一个或多个的柱状突起。可选,扰流部217a可以只形成在对应第一级直径变小锥形通道的内壁上,或者形成在对应每级直径变小锥形通道的内壁上,或者形成在对应多于一级直径变小锥形通道的内壁上。
如图20所示,在一种或多种实施例中,直径变小锥形通道部217的外壁与一体式喷管521的内壁分离,从而在直径变小锥形通道部217的外壁与一体式喷管521的内壁之间形成环形间隙300。该环形间隙300有助于空气与水流的混合,进而产生更多的微气泡。
如图20所示,一体式喷管521上还形成有吸气口216。该吸气口216形成在一体式喷管521的管壁上并且定位靠近喷孔218。水流从一体式喷管521的进口端211进入,先流过第一级直径变小锥形通道217c,再流入第二级直径变小锥形通道217b,从而得到加压,而扰流部217a则能够加大水流的涡流。加压后的水流从喷孔218喷出进入一体式喷管521的下游通道并且被快速地膨胀,因此在一体式喷管521的下游通道内产生负压。在负压的作用下,大量外部空气从吸气口216被吸入一体式喷管521并且与其中的水流混合而产生气泡水。气泡水在通过微气泡网522时被切割和混合,从而生成微气泡水。
图21是沿着图19的剖面线A-A截取的本发明微气泡喷头在第三实施方式中的第二实施例的剖视图。如图21所示,在该实施例中,直径变小锥形通道部217定位靠近一体式喷管521的进口端,但是吸气口216定位靠近一体式喷管521的出口端,因此靠近微气泡网522。在该实施例中,吸气口216仍然处于由喷孔218所制造的负压作用范围内,因此当水流从喷孔218膨胀地喷入一体式喷管521的下游通道中时,外界空气在负压的作用下从吸气口216被吸入一体式喷管并与水流混合。本实施例中未提及的部分同上述实施例。
图22是沿着图19的剖面线A-A截取的本发明微气泡喷头在第三实施方式中的第三实施例的剖视图。如图22所示,在该实施例中,直径变小锥形通道部217定位靠近一体式喷管521的出口端212,并且吸气口216定位靠近位于直径变小锥形通道部217的下游端上的喷孔218。第二级直径变小锥形通道217c从一体式喷管521的进口端211延伸较长的距离至直径变小锥形通道部217内的第一级直径变小锥形通道217b。在该实施例中,直径变小锥形通道部217内没有设置扰流部。本实施例中未提及的部分同上述实施例。
图23是沿着图19的剖面线A-A截取的本发明微气泡喷头在第三实施方式中的第四实施例的剖视图。如图23所示,在该实施例中,直径变小锥形通道部217定位也靠近一体式喷管521的出口端212,并且吸气口216定位靠近位于直径变小锥形通道部217的下游端上的喷孔218。第二级直径变小锥形通道217c从一体式喷管521的进口端211延伸较长的距离至直径变小锥形通道部217内的第一级直径变小锥形通道217b。在该实施例中,直径变小锥形通道部217内设有扰流部217a,具体是多个沿着直径变小锥形通道部217的内壁延伸的纵向扰流筋。本实施例中未提及的部分同上述实施例。
至此,已经结合附图所示的优选实施方式描述了本发明的技术方案,但是,本领域技术人员容易理解的是,本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下,本领域技术人员可以对来自不同实施例的技术特征进行组合,也可以对相关技术特征作出等同的更改或替换,这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (30)

  1. 一种微气泡喷头,其特征在于,所述微气泡喷头包括一体式喷管和固定在所述一体式喷管的出口端内的微气泡滤网袋,
    在所述一体式喷管内形成有文丘里管结构,并且在所述一体式喷管上设有吸气口,使得空气借助由所述文丘里管结构制造的负压通过所述吸气口被吸入一体式喷管并且与所述一体式喷管内的水流混合产生气泡水;
    所述微气泡滤网袋包括开口、底部和位于所述开口与底部之间的侧壁,所述开口朝向所述文丘里管结构,并且在所述侧壁与所述出口端的内壁之间形成出水空间以便所述气泡水能够穿过所述侧壁和底部而形成微气泡水。
  2. 根据权利要求1所述的微气泡喷头,其特征在于,所述微气泡滤网袋由至少两层滤网形成。
  3. 根据权利要求1或2所述的微气泡喷头,其特征在于,所述微气泡滤网袋由金属滤网或高分子材料网制成。
  4. 根据权利要求1或2所述的微气泡喷头,其特征在于,所述微气泡滤网袋通过卡簧固定在所述出口端的内壁上。
  5. 根据权利要求1或2所述的微气泡喷头,其特征在于,所述文丘里管结构由直径变小锥形通道部构成,沿着水流方向在所述直径变小锥形通道部内形成有至少一级直径变小锥形通道,并且在所述直径变小锥形通道部的下游端上设有喷孔,使得通过所述至少一级直径变小锥形通道加压的水流能够从所述喷孔喷出并且在所述一体式喷管内产生负压。
  6. 根据权利要求5所述的微气泡喷头,其特征在于,当所述喷孔定位靠近所述一体式喷管的进口端时,所述吸气口定位成靠近所述喷孔和/或者定位在所述出口端上。
  7. 根据权利要求6所述的微气泡喷头,其特征在于,在所述一体式喷管上设有第一吸气口和第二吸气口,所述第一吸气口定位靠近所述喷孔,并且所述第二吸气口定位在所述出口端上。
  8. 根据权利要求5所述的微气泡喷头,其特征在于,当所述喷孔定位靠近所述出口端时,所述吸气口定位靠近所述喷孔。
  9. 根据权利要求1或2所述的微气泡喷头,其特征在于,所述文丘里管结构能够是下列结构中的任意一种:沿着水流方向具有相互平行的多个直径变小锥形通道的结构,沿着所述水流方向具有单个节流孔的结构,沿着所述水流方向具有相互平行的多个节流孔的结构,沿着所述水流方向具有单个直径先变小后变大通道的结构,或者沿着所述水流方向具有相互平行的多个直径先变小后变大通道的结构。
  10. 一种洗涤设备,其特征在于,所述洗涤设备包括根据权利要求1-9任一项所述的微气泡喷头,所述微气泡喷头设置成在所述洗涤设备内产生微气泡水。
  11. 一种微气泡喷头,其特征在于,所述微气泡喷头包括一体式喷管和固定在所述一体式喷管的出口端上的微气泡起泡器,
    在所述一体式喷管内设有直径变小锥形通道部,在所述直径变小锥形通道部内沿着水流方向形成至少一级直径变小锥形通道,并且在所述直径变小锥形通道部的下游端上形成有喷孔,所述喷孔配置成在经过所述至少一级直径变小锥形通道加压的水流从所述喷孔喷出后在所述一体式喷管内产生负压;
    在所述一体式喷管上设有吸气口,所述吸气口定位靠近所述喷孔以便空气借助所述负压通过所述吸气口被吸入所述一体式喷管并且与所述水流混合产生气泡水;以及
    所述微气泡起泡器沿着所述水流方向包括相互间隔预定距离的至少两级滤网以将所述气泡水变成微气泡水。
  12. 根据权利要求11所述的微气泡喷头,其特征在于,所述至少一级直径变小锥形通道包括第一级直径变小锥形通道和第二级直径变小锥形通道。
  13. 根据权利要求11或12所述的微气泡喷头,其特征在于,在所述直径变小锥形通道部的内壁上形成有扰流部。
  14. 根据权利要求11或12或所述的微气泡喷头,其特征在于,所述喷孔的直径在0-6mm的范围内。
  15. 根据权利要求11或12所述的微气泡喷头,其特征在于,所述至少两级滤网包括第一级滤网和第二级滤网,所述第一级滤网包括至少一层滤网,并且所述第一级滤网的层数少于所述第二级滤网的层数。
  16. 根据权利要求11或12所述的微气泡喷头,其特征在于,所述微气泡起泡器包括网架以将所述至少两级滤网固定在一起。
  17. 根据权利要求16所述的微气泡喷头,其特征在于,所述网架直接固定在所述一体式喷管的出口端上。
  18. 根据权利要求16所述的微气泡喷头,其特征在于,所述微气泡起泡器还包括固定件并且所述网架通过所述固定件固定到所述一体式喷管的出口端上。
  19. 根据权利要求18所述的微气泡喷头,其特征在于,所述网架和固定件的至少一个上设有溢流口。
  20. 一种洗涤设备,其特征在于,所述洗涤设备包括根据权利要求11-19任一项所述的微气泡喷头,所述微气泡喷头设置成在所述洗涤设备内产生微气泡水。
  21. 一种微气泡喷头,其特征在于,所述微气泡喷头包括一体式喷管和固定在所述一体式喷管的出口端上的微气泡网,
    在所述一体式喷管内设有直径变小锥形通道部,在所述直径变小锥形通道部内沿着水流方向形成有至少一级直径变小锥形通道,并且在所述直径变小锥形通道部的下游端上设有喷孔,所述喷孔配置成使得流过所述至少一级直径变小锥形通道的水流从所述喷孔喷出并且在所述一体式喷管内产生负压;并且
    在所述一体式喷管上设有吸气口,所述吸气口定位成使得空气能够借助所述负压通过所述吸气口被吸入所述一体式喷管并且与所述水流混合产生气泡水,所述气泡水通过所述微气泡网变成微气泡水。
  22. 根据权利要求21所述的微气泡喷头,其特征在于,所述微气泡网套在所述一体式喷管的出口端上并且通过固定装置固定在所述一体式喷管的外壁上。
  23. 根据权利要求21或22所述的微气泡喷头,其特征在于,所述微气泡网包括至少2层网。
  24. 根据权利要求21或22所述的微气泡喷头,其特征在于,所述微气泡网包括金属网或高分子材料网。
  25. 根据权利要求21或22所述的微气泡喷头,其特征在于,所述直径变小锥形通道部定位成靠近所述一体式喷管的进口端,并且所述吸气口定位成靠近所述喷孔。
  26. 根据权利要求21或22所述的微气泡喷头,其特征在于,所述直径变小锥形通道部定位成靠近所述一体式喷管的进口端,并且所述吸气口定位成靠近所述一体式喷管的出口端。
  27. 根据权利要求21或22所述的微气泡喷头,其特征在于,所述直径变小锥形通道部定位成靠近所述一体式喷管的出口端,并且所述吸气口定位成靠近所述喷孔。
  28. 根据权利要求21或22所述的微气泡喷头,其特征在于,在所述直径变小锥形通道部的内壁上设有扰流部。
  29. 根据权利要求28所述的微气泡喷头,其特征在于,所述扰流部是设置在所述直径变小锥形通道部的内壁上的至少一个径向突起部或者是沿着所述直径变小锥形通道部的内壁纵向延伸的至少一个扰流筋。
  30. 一种洗涤设备,其特征在于,所述洗涤设备包括根据权利要求21-29任一项所述的微气泡喷头,所述微气泡喷头设置成在所述洗涤设备内产生微气泡水。
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