WO2024139674A1 - 混合罐及牙齿清洁器具 - Google Patents

混合罐及牙齿清洁器具 Download PDF

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Publication number
WO2024139674A1
WO2024139674A1 PCT/CN2023/128692 CN2023128692W WO2024139674A1 WO 2024139674 A1 WO2024139674 A1 WO 2024139674A1 CN 2023128692 W CN2023128692 W CN 2023128692W WO 2024139674 A1 WO2024139674 A1 WO 2024139674A1
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WO
WIPO (PCT)
Prior art keywords
liquid
mixing
spiral
section
extension axis
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Application number
PCT/CN2023/128692
Other languages
English (en)
French (fr)
Inventor
左杰
邱云峰
孟凡迪
Original Assignee
深圳素士科技股份有限公司
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Application filed by 深圳素士科技股份有限公司 filed Critical 深圳素士科技股份有限公司
Publication of WO2024139674A1 publication Critical patent/WO2024139674A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A61C17/0202—Hand-pieces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A61C17/0217—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication having means for manually controlling the supply of two or more fluids, e.g. water and air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector 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
    • B01F25/31241—Injector 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 the main flow being injected in the circumferential area of the venturi, creating an aspiration in the central part of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/421—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions by moving the components in a convoluted or labyrinthine path
    • B01F25/423—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions by moving the components in a convoluted or labyrinthine path by means of elements placed in the receptacle for moving or guiding the components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements

Definitions

  • the present application relates to the technical field of dental care equipment, and in particular to a mixing tank and a dental cleaning device.
  • tooth irrigators can clean places that are difficult to clean with toothbrushes, such as gaps between teeth and gingival sulci.
  • the working principle of most existing tooth irrigators is to pressurize water through a pressure pump, and then spray the pressurized water along a nozzle to the part of the oral cavity that needs to be cleaned, thereby achieving the purpose of cleaning teeth.
  • the current bubble-liquid mixed water flossers have production mechanisms such as electrochemical method, ultrasonic method, high-speed shear method, pressurized compression method, cavitation method, etc.
  • the electrochemical method consumes a lot of energy, has many electronic components, has a high risk of failure, has a small amount of bubbles, consumes a lot of energy, and has requirements for water quality. Therefore, the stability is poor and the service life of the tooth cleaning device is short.
  • the main purpose of the present application is to provide a mixing tank and a tooth cleaning device, which can use a mechanical method to achieve the mixing of bubbles and liquids, have good mixing effect, high mixing efficiency, high stability, and can have a long service life.
  • a mixing tank comprising:
  • a tank body having a first extension axis extending along a first direction, and the tank body extends along the first extension axis;
  • the mixing chamber is a chamber constructed inside the tank body and extends along the first extension axis;
  • a liquid inlet is configured at the first end of the tank body, extends along the first extension axis, penetrates the first end of the tank body, and communicates with the mixing chamber;
  • the liquid outlet is constructed at the second end of the tank body, penetrates the tank body, and is communicated with the mixing chamber.
  • the cross-section of the liquid inlet in a direction perpendicular to the liquid flow is circular
  • the cross-section of the liquid outlet in a direction perpendicular to the liquid flow is circular
  • the area of the mixing chamber in a cross-section perpendicular to the first extension axis is larger than the cross-sectional area of the liquid inlet
  • the area of the mixing chamber in a cross-section perpendicular to the first extension axis is larger than the cross-sectional area of the liquid outlet
  • the bottom height of the liquid outlet is higher than the top height of the liquid inlet.
  • a spiral core is provided inside the mixing chamber, the spiral core extends along the first extension axis, the spiral core cooperates with the chamber wall of the mixing chamber to form a spiral flow channel, and the liquid inlet and the liquid outlet are both connected to the spiral flow channel.
  • the spiral core includes a core shaft and a spiral guide plate arranged on the outer peripheral wall of the core shaft, the core shaft extends along a first extension axis, the spiral guide plate extends spirally on the outer peripheral wall of the core shaft along the first extension axis, and the core shaft, the spiral guide plate and the wall of the mixing chamber form a spiral flow channel.
  • one end of the tank body away from the liquid inlet is open, an end plate is fixedly arranged at the opening, the end plate is fixedly connected to the tank body, and a sealing structure is arranged at the mating end surfaces of the end plate and the tank body.
  • the outer wall of the spiral guide plate is fixedly connected to the cavity wall of the mixing cavity, and the inner wall of the spiral guide plate is fixedly connected to the core shaft.
  • the first end of the core shaft is fixedly disposed on the end plate, and the second end of the core shaft forms a cantilever structure.
  • the inner wall of the spiral guide plate is integrally formed with the core shaft, and the outer wall of the spiral guide plate is spaced apart from the cavity wall of the mixing cavity to form an annular flow channel, and part of the liquid flows along the spiral flow channel and part of the liquid flows along the annular flow channel.
  • the rotary cutting head includes a front cone section and a rear cone section, the cross-sectional area of the front cone section increases in the direction away from the liquid inlet, the cross-sectional area of the rear cone section decreases in the direction away from the liquid inlet, and the cross-sectional area of the front cone section and the rear cone section is the largest at the connection position.
  • the rotary cutting head includes a plurality of rotary cutting blades, and a rotary cutting flow channel is formed between adjacent rotary cutting blades, and the rotary cutting flow channel is connected to the spiral flow channel.
  • the head of the rotary cutting head extends into the liquid inlet and forms an annular channel with the liquid outlet end of the liquid inlet.
  • the extension direction of the liquid outlet is perpendicular to the first extension axis.
  • the extension direction of the liquid outlet is parallel to the first extension axis.
  • a teeth cleaning device comprising a venturi tube, a water pump and a nozzle, and also comprising the above-mentioned mixing tank, wherein the venturi tube, the water pump, the mixing tank and the nozzle are connected in sequence.
  • the mixing tank comprises: a tank body having a first extension axis extending along a first direction, and the tank body extends along the first extension axis; a mixing chamber, which is a chamber constructed inside the tank body and extends along the first extension axis;
  • the liquid inlet is constructed at the first end of the tank body, extends along the first extension axis, penetrates the first end of the tank body, and is connected to the mixing chamber;
  • the liquid outlet is constructed at the second end of the tank body, penetrates the tank body, and is connected to the mixing chamber.
  • the mixing tank uses the liquid inlet to send a mixed solution of bubbles and liquid with a certain pressure into the tank body, and mixes them again in the mixing chamber of the tank body.
  • the mixed solution expands in the mixing chamber and is pressurized, so that the bubbles and liquid are mixed more fully and evenly.
  • the present application achieves the mixing of bubbles and liquid by mechanical means, requires fewer electronic devices, has a good mixing effect, high mixing efficiency, high stability, and can have a long service life.
  • FIG1 shows a cross-sectional structural diagram of a mixing tank according to an embodiment of the present application
  • FIG2 shows a cross-sectional structural diagram of a mixing tank according to an embodiment of the present application
  • FIG3 shows a cross-sectional structural diagram of a mixing tank according to an embodiment of the present application
  • FIG4 shows a cross-sectional structural diagram of a mixing tank according to an embodiment of the present application
  • FIG5 is a schematic structural diagram of a spiral core of a mixing tank according to an embodiment of the present application.
  • FIG6 is a bottom view schematic diagram of a spiral core of a mixing tank according to an embodiment of the present application.
  • FIG7 shows a plan view of a venturi tube according to an embodiment of the present application.
  • FIG8 shows a cross-sectional view of the venturi tube in FIG7 ;
  • FIG9 shows a plan view of a venturi tube according to another embodiment of the present application.
  • FIG11 shows a plan view of a venturi tube according to another embodiment of the present application.
  • FIG12 shows a cross-sectional view of the venturi tube of FIG11.
  • FIG. 13 shows a plan view of a teeth cleaning appliance of the present application.
  • FIG. 10 The above drawings include the following reference numerals: 10. Venturi tube; 11. Water inlet section; 12. Contraction section; 13. Throat; 14. Expansion section; 15. Water outlet section; 16. Air inlet section; 161, air inlet hole; 17, outer sleeve; 171, end plate; 172, flow hole; 173, regulating cone; 20, water inlet pipe; 30, water outlet pipe; 40, water pump; 50, tank body; 51, mixing chamber; 52, liquid inlet; 53, liquid outlet; 54, spiral core; 541, core shaft; 542, spiral guide plate; 543, rotary cutting head; 544, front cone section; 545, rear cone section; 546, rotary cutting blade; 547, rotary cutting channel; 55, end plate; 56, sealing structure; 57, spiral flow channel; 58, annular flow channel; 59, nozzle; 500, first extension axis; 600, second extension axis.
  • FIG. 10 The above drawings include the following reference numerals: 10. Venturi tube; 11. Water inlet section; 12. Contraction section
  • a mixing tank comprising: a tank body 50, the tank body 50 having a first extension axis 500 extending along a first direction, and the tank body 50 extends along the first extension axis 500; a mixing chamber 51, which is a chamber constructed inside the tank body 50 and extends along the first extension axis 500; a liquid inlet 52, constructed at the first end of the tank body 50, extending along the first extension axis 500, penetrating the first end of the tank body 50, and communicating with the mixing chamber 51; a liquid outlet 53, constructed at the second end of the tank body 50, penetrating the tank body 50, and communicating with the mixing chamber 51.
  • the mixing tank uses the liquid inlet 52 to deliver a mixed solution of bubbles and liquid with a certain pressure into the tank body 50, and mixes it again in the mixing chamber 51 of the tank body 50.
  • the mixed solution expands in the mixing chamber 51 and is pressurized, so that the bubbles and liquid are mixed more fully and evenly.
  • the present application achieves the mixing of bubbles and liquid by mechanical means, requires fewer electronic components, has a good mixing effect, high mixing efficiency, high stability, and can have a longer service life.
  • the bottom height of the liquid outlet 53 is higher than the top height of the liquid inlet 52 .
  • the bottom height of the liquid outlet 53 is higher than the top height of the liquid inlet 52.
  • the gas density is small and it is easy to float.
  • the air in the mixing tank can be discharged as soon as possible through the liquid outlet 53 located on the upper side of the liquid inlet 52, thereby improving the air discharge efficiency.
  • the bottom height of the liquid outlet 53 is higher than the top height of the liquid inlet 52.
  • the cross-section of the liquid inlet 52 at right angles to the liquid flow direction is circular
  • the cross-section of the liquid outlet 53 at right angles to the liquid flow direction is circular
  • the area of the mixing chamber 51 at right angles to the first extension axis 500 is larger than the cross-sectional area of the liquid inlet 52
  • the area of the mixing chamber 51 at right angles to the first extension axis 500 is larger than the cross-sectional area of the liquid outlet 53.
  • a spiral core 54 is disposed inside the mixing chamber 51, and the spiral core 54 extends along the first extension axis 500.
  • the spiral core 54 cooperates with the cavity wall of the mixing chamber 51 to form a spiral flow channel 57, and the liquid inlet 52 and the liquid outlet 53 are both connected to the spiral flow channel 57.
  • the cavity wall of the mixing chamber 51 here is the inner wall of the tank body 50.
  • the spiral core 54 can be directly processed integrally with the tank body 50 in the mixing chamber 51, for example, by powder metallurgy or 3D printing. It can also be processed separately from the tank body 50 and then installed in the mixing chamber 51 to cooperate with the cavity wall of the mixing chamber 51 to form a spiral flow channel 57.
  • the spiral core 54 includes a core shaft 541 and a spiral guide plate 542 arranged on the outer peripheral wall of the core shaft 541, the core shaft 541 extends along the first extension axis 500, the spiral guide plate 542 extends spirally on the outer peripheral wall of the core shaft 541 along the first extension axis 500, and the core shaft 541, the spiral guide plate 542 and the cavity wall of the mixing chamber 51 form a spiral flow channel 57.
  • the core shaft 541 and the spiral guide plate 542 together constitute the spiral core body 54.
  • the core shaft 541 can provide a structural basis for the setting of the spiral guide plate 542, and can cooperate with the spiral guide plate 542 and the cavity wall of the mixing chamber 51 to form a spiral flow channel 57, which can facilitate the processing and installation of the spiral guide plate 542.
  • one end of the tank body 50 away from the liquid inlet 52 is open, an end plate 55 is fixedly disposed at the opening, the end plate 55 is fixedly connected to the tank body 50, and a sealing structure 56 is disposed at the mating end surfaces of the end plate 55 and the tank body 50.
  • an opening is provided at one end of the tank body 50, which can facilitate the processing of the mixing chamber 51 and the processing or installation of the spiral core 54, and can reduce the processing difficulty of the mixing tank, and improve the processing efficiency and processing cost.
  • an end plate 55 is provided at the opening, and the end plate 55 is fixedly connected to the tank body 50 by bolts, or can be fixed by welding, or fixedly connected by other methods.
  • a sealing structure 56 is provided at the mating end surface of the end plate 55 and the tank body 50, which can seal the mating end surface of the end plate 55 and the tank body 50, effectively preventing gas and liquid from leaking from the mating position of the end plate 55 and the tank body 50, and ensuring the overall sealing effect of the mixing tank.
  • the sealing structure 56 can be a sealing ring or a sealing filler.
  • the outer wall of the spiral guide plate 542 is fixedly connected to the cavity wall of the mixing cavity 51
  • the inner wall of the spiral guide plate 542 is fixedly connected to the core shaft 541 .
  • the core shaft 541 is fixedly connected to the cavity wall of the mixing chamber 51 through the spiral guide plate 542.
  • the spiral guide plate 542 can be directly processed on the core shaft 541.
  • the spiral guide plate 542 and the cavity wall of the mixing chamber 51 can be integrally connected, that is, the tank body 50 is directly processed to directly process the mixing chamber 51 with the core shaft 541 and the spiral guide plate 542.
  • the cavity 51 realizes the integral molding between the spiral core 54 and the tank body 50. This structure does not need to consider the installation and fixation of the spiral core 54, so the structural requirements for the end plate 55 are simple and the processing cost is low.
  • the first end of the core shaft 541 is fixedly disposed on the end plate 55 , and the second end of the core shaft 541 forms a cantilever structure.
  • the spiral core 54 can be directly processed on the end plate 55, or it can be processed separately from the end plate 55 and then fixedly installed on the end plate 55. Since the spiral core 54 is installed on the end plate 55, there is no need to consider the installation of the spiral core 54 in the mixing chamber 51.
  • the mixing chamber 51 can be directly processed into a cylindrical cavity, thereby reducing the processing difficulty and processing cost of the tank body 50 and reducing the processing and manufacturing cost of the mixing tank.
  • the inner wall of the spiral guide plate 542 is integrally formed with the core shaft 541, and the outer wall of the spiral guide plate 542 is spaced apart from the cavity wall of the mixing cavity 51 to form an annular flow channel 58, and part of the liquid flows along the spiral flow channel 57, and part of the liquid flows along the annular flow channel 58.
  • the rotary cutting head 543 can be used to form a vortex structure for the mixed solution.
  • the rotary cutting head 543 can also be used to rotary cut the mixed solution to make the mixing of bubbles and liquid more uniform.
  • the rotary cutting head 543 includes a front cone section 544 and a rear cone section 545, the cross-sectional area of the front cone section 544 increases in the direction away from the liquid inlet 52, and the cross-sectional area of the rear cone section 545 decreases in the direction away from the liquid inlet 52, and the cross-sectional area of the front cone section 544 and the rear cone section 545 is the largest at the connection position.
  • the rotary cutting head 543 includes a front cone section 544 and a rear cone section 545.
  • the front cone section 544 can form a flow passage with a gradually decreasing cross-sectional area with the wall of the mixing chamber 51, so that the mixed solution will form an accelerated decompression effect when flowing through the front cone section 544.
  • After the mixed solution flows through the front cone section 544 it enters the flow passage with a gradually increasing cross-sectional area formed between the rear cone section 545 and the wall of the mixing chamber 51, so that the mixed solution will form a deceleration and pressurization effect when flowing through the rear cone section 545.
  • the mixed solution can be When the liquid flows through the rotary cutting head 543, it is not only subjected to the rotary cutting effect of the rotary cutting head 543, but also to the contraction and expansion effect formed by the front cone section 544 and the rear cone section 545, so that the bubbles and the liquid can be remixed during the spiral flow, further improving the mixing efficiency and mixing effect of the bubbles and the liquid.
  • the rotary cutting head 543 includes a plurality of rotary cutting blades 546 , and a rotary cutting flow channel 547 is formed between adjacent rotary cutting blades 546 .
  • the rotary cutting flow channel 547 is connected to the spiral flow channel 57 .
  • the mixed liquid after being rotary cut by the rotary cutting blade 546 can flow into the spiral flow channel 57 and be mixed again under the spiral guiding action of the spiral flow channel 57, which can further improve the mixing effect of bubbles and liquid and improve the efficiency of preparing nano bubble water.
  • the high-pressure gas-liquid mixed solution flows in from the liquid inlet 52, and the high-pressure gas-liquid mixed solution enters the subsequent spiral flow channel 57 along the rotary cutting flow channel 547 in the inverted cone of the rotary cutting head 543, and the flow channel formed by the inverted cone and the inner cavity of the tank body 50, and is continuously rotary cut by the outer edge of the spiral flow channel 57 to form a more evenly mixed gas-liquid mixed solution, thereby improving the efficiency of preparing nano bubble water.
  • the head of the rotary cutting head 543 extends into the liquid inlet 52 and forms an annular channel with the liquid outlet of the liquid inlet 52 .
  • the head portion of the rotary cutting head 543 extends into the liquid inlet 52, and can squeeze the liquid outlet space of the liquid inlet 52, so that the mixed solution of bubbles and liquid can flow through the rotary cutting head 543 more concentratedly during the process of flowing from the liquid inlet 52 into the mixing chamber 51, and can be more fully decomposed into smaller bubbles under the rotary cutting action of the rotary cutting head 543, and can be more fully mixed with the liquid, thereby improving the mixing efficiency of the bubbles and liquid and improving the cleaning effect of the mixed solution of bubbles and liquid on the teeth.
  • the extension direction of the liquid outlet 53 is perpendicular to the first extension axis 500 .
  • the extension direction of the liquid outlet 53 is parallel to the first extension axis 500 .
  • the present application also provides a tooth cleaning device, including a venturi tube 10, a water inlet pipe 20, a water outlet pipe 30, a water pump 40 and a nozzle 59, and also includes the above-mentioned mixing tank, the water inlet section 11 of the venturi tube 10 is connected to the water inlet pipe 20, the water outlet section 15 of the venturi tube 10 is connected to the water pump 40 through the water outlet pipe 30, and the venturi tube 10, the water pump 40, the mixing tank and the nozzle 59 are connected in sequence.
  • a tooth cleaning device including a venturi tube 10, a water inlet pipe 20, a water outlet pipe 30, a water pump 40 and a nozzle 59, and also includes the above-mentioned mixing tank, the water inlet section 11 of the venturi tube 10 is connected to the water inlet pipe 20, the water outlet section 15 of the venturi tube 10 is connected to the water pump 40 through the water outlet pipe 30, and the venturi tube 10, the water pump 40, the mixing tank and the nozzle 59 are connected in sequence.
  • the teeth cleaning device also includes a water tank, which is connected to the water inlet section 11 of the venturi tube 10, and the nozzle is connected to the water pump 40.
  • the water in the water tank is mixed with the gas through the venturi tube 10, and then output from the water outlet section 15 of the venturi tube 10. After being pressurized and mixed by the water pump 40, it is sprayed from the nozzle 59 to clean the teeth.
  • the water pump 40 makes the pressure of water and gas sufficient to rinse the teeth clean, thereby ensuring the use effect of the teeth cleaning device.
  • the mixed solution flows from the outlet of the water pump 40 into the liquid inlet 52 of the mixing tank. Under the action of the mixing tank and the flow limiting hole of the nozzle 59, there will be a certain pressure in the mixing tank. Under this pressure, the gas-liquid mixed solution in the mixing tank will be further fully mixed.
  • the water in the water tank passes through the venturi tube 10, and at the same time, gas enters the air inlet of the venturi tube 10 to form a gas-liquid mixed solution of bubbles and liquid.
  • the gas-liquid mixed solution then enters the water inlet hole of the water pump 40, and is pressurized by the water pump 40 to form a gas-liquid mixed solution with a certain pressure, which flows out from the outlet of the water pump 40 and then flows into the mixing tank of the embodiment of the present application. Under the mixing action of the mixing tank, a high-pressure and uniform gas-liquid mixed solution is formed, which can then be sprayed out from the nozzle 59 to use the bubble solution for teeth cleaning.
  • the included angle between the extension direction of the air inlet hole 161 of the air inlet section 16 and the second extension axis 600 is 30° to 60°.
  • the contraction angle ⁇ 1 of the contraction section 12 is 21°.
  • 8° is the optimal expansion angle of the expansion section 14, which is obtained through simulation detection, so that the pressure of water passing through the expansion section 14 can effectively promote the fusion of the airflow in the liquid flow, improve the mixing effect of the bubbles and the liquid flow, and ensure the best user experience.
  • the adjustable design of the air inlet 161 allows different users to adjust the air intake volume according to their own needs and preferences, and then adjust the bubble content in the output water. It has a higher degree of freedom in use and can better meet the requirements of multiple types of users.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)

Abstract

一种混合罐及牙齿清洁器具，该混合罐包括：罐体(50)，罐体(50)具有沿第一方向延伸的第一延伸轴线(500)，罐体(50)沿第一延伸轴线(500)延伸；混合腔(51)，为构造于罐体(50)内部的腔体，并且沿第一延伸轴线(500)延伸；进液口(52)，构造于罐体(50)的第一端，沿第一延伸轴线(500)延伸，贯穿罐体(50)的第一端，并与混合腔(51)连通；出液口(53)，构造于罐体(50)的第二端，贯穿罐体(50)，并与混合腔(51)连通；出液口(53)的底部高度高于进液口(52)的顶部高度。该混合罐能够利用机械方式实现气泡和液体的混合，混合效果好，混合效率高，稳定性高，可以有较长的使用寿命。

Description

混合罐及牙齿清洁器具
本申请要求于2022年12月30日提交中国专利局、申请号为202211733278.0、发明名称为“混合罐及牙齿清洁器具”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及牙齿护理设备技术领域，具体而言，涉及一种混合罐及牙齿清洁器具。
背景技术
洗牙器作为牙刷的辅助补充用具，能够实现对牙缝及牙龈沟等牙刷不易清洁的地方进行清洁。现有的大部分洗牙器的工作原理都是通过加压泵对水加压，然后将加压后的水沿喷嘴喷至口腔内需要清洗的部位，从而达到洗牙的目的。
目前的洗牙器多数只是单纯利用液流，但液流的清洁效果有限，对于同一个部位往往需要进行多次冲洗才能清洗干净，而一般的洗牙器体积较小，用于储备水量的水箱体积较小，容易出现储备的水量用完以后待清洁部位还没清洗干净的情况，导致用户体验较差。
为了克服上述问题，当前出现了一种气泡液体混合的冲牙器，该种冲牙器将气泡混合在液体中，能够对牙齿进行更加全方位的清洁，提高对牙齿的冲洗效果。
当前的气泡液体混合的冲牙器，产生机理有电化学方式、超声波法、高速剪切方式、加压压溃方式、气穴方式等。
电化学方式耗能高，电子器件多，失效风险大，气泡量小，能耗大，且对水质有要求，因此稳定性较差，牙齿清洁器具的使用寿命较短。
发明内容
本申请的主要目的在于提供一种混合罐及牙齿清洁器具，能够利用机械方式实现气泡和液体的混合，混合效果好，混合效率高，稳定性高，可以有较长的使用寿命。
为了实现上述目的，根据本申请的一方面，提供了一种混合罐，包括：
罐体，罐体具有沿第一方向延伸的第一延伸轴线，罐体沿第一延伸轴线延伸；
混合腔，为构造于罐体内部的腔体，并且沿第一延伸轴线延伸；
进液口，构造于罐体的第一端，沿第一延伸轴线延伸，贯穿罐体的第一端，并与混合腔连通；
出液口，构造于罐体的第二端，贯穿罐体，并与混合腔连通。
可选地，进液口在垂直于液流方向上的截面为圆形，出液口在垂直于液流方向上的截面为圆形，混合腔在垂直于第一延伸轴线的截面上的面积大于进液口的截面面积，混合腔在垂直于第一延伸轴线的截面上的面积大于出液口的截面面积；或，出液口的底部高度高于进液口的顶部高度。
可选地，混合腔内部设置有螺旋芯体，螺旋芯体沿第一延伸轴线延伸，螺旋芯体与混合腔的腔壁配合形成螺旋流道，进液口和出液口均与螺旋流道连通。
可选地，螺旋芯体包括芯轴和设置在芯轴的外周壁上的螺旋导流板，芯轴沿第一延伸轴线延伸，螺旋导流板沿第一延伸轴线在芯轴的外周壁上螺旋延伸，芯轴、螺旋导流板和混合腔的腔壁围成螺旋流道。
可选地，罐体远离进液口的一端开口，开口处固定设置有端板，端板与罐体固定连接，端板与罐体在配合端面处设置有密封结构。
可选地，螺旋导流板的外壁与混合腔的腔壁固定连接，螺旋导流板的内壁与芯轴固定连接。
可选地，芯轴的第一端固定设置在端板上，芯轴的第二端形成悬臂结构。
可选地，螺旋导流板的内壁与芯轴一体成型，螺旋导流板的外壁与混合腔的腔壁之间间隔设置形成环形流道，一部分液体沿螺旋流道流动，一部分液体沿环形流道流动。
可选地，螺旋芯体还包括设置在芯轴远离端板一端的旋切头，旋切头设置在进液口处，以使得从进液口到达旋切头的液体形成旋流。
可选地，旋切头包括前锥段和后锥段，前锥段的截面积沿着远离进液口的方向递增，后锥段的截面积沿着远离进液口的方向递减，前锥段和后锥段在连接位置处的截面积最大。
可选地，旋切头包括多个旋切刀片，相邻的旋切刀片之间形成旋切流道，旋切流道与螺旋流道连通。
可选地，旋切头的头部伸入进液口，并与进液口的出液端之间形成环形通道。
可选地，出液口的延伸方向垂直于第一延伸轴线。
可选地，出液口的延伸方向平行于第一延伸轴线。
根据本申请的另一方面，提供了一种牙齿清洁器具，包括文丘里管、水泵和喷嘴，还包括上述的混合罐，文丘里管、水泵、混合罐和喷嘴依次连接。
应用本申请的技术方案，混合罐包括：罐体，罐体具有沿第一方向延伸的第一延伸轴线，罐体沿第一延伸轴线延伸；混合腔，为构造于罐体内部的腔体，并且沿第一延伸轴线延伸； 进液口，构造于罐体的第一端，沿第一延伸轴线延伸，贯穿罐体的第一端，并与混合腔连通；出液口，构造于罐体的第二端，贯穿罐体，并与混合腔连通。该混合罐利用进液口将具有一定压力的气泡和液体的混合溶液送入罐体内，在罐体的混合腔内进行再次混合，利用混合腔容积增大的特点，使得混合溶液在混合腔内膨胀，进行增压，使得气泡与液体混合更加充分均匀，本申请通过机械方式实现气泡与液体的混合，所需电子器件少，混合效果好，混合效率高，稳定性高，可以有较长的使用寿命。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了本申请的一个实施例的混合罐的剖视结构图；
图2示出了本申请的一个实施例的混合罐的剖视结构图；
图3示出了本申请的一个实施例的混合罐的剖视结构图；
图4示出了本申请的一个实施例的混合罐的剖视结构图；
图5示出了本申请的一个实施例的混合罐的螺旋芯体的结构示意图；
图6示出了本申请的一个实施例的混合罐的螺旋芯体的仰视示意图；
图7示出了本申请的实施例的文丘里管的平面图；
图8示出了图7中的文丘里管的剖视图；
图9示出了本申请的另一个实施例的文丘里管的平面图；
图10示出了图9中的文丘里管的剖视图；
图11示出了本申请的另一个实施例的文丘里管的平面图；
图12示出了图11中的文丘里管的剖视图；以及
图13示出了本申请的牙齿清洁器具的平面图。
其中，上述附图包括以下附图标记：
10、文丘里管；11、进水段；12、收缩段；13、喉部；14、扩张段；15、出水段；16、
进气段；161、进气孔；17、外套管；171、端板；172、过流孔；173、调节锥；20、进水管；30、出水管；40、水泵；50、罐体；51、混合腔；52、进液口；53、出液口；54、螺旋芯体；541、芯轴；542、螺旋导流板；543、旋切头；544、前锥段；545、后锥段；546、旋切刀片； 547、旋切流道；55、端板；56、密封结构；57、螺旋流道；58、环形流道；59、喷嘴；500、第一延伸轴线；600、第二延伸轴线。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
结合参见图1至图6所示，本申请提供了一种混合罐，包括：罐体50，罐体50具有沿第一方向延伸的第一延伸轴线500，罐体50沿第一延伸轴线500延伸；混合腔51，为构造于罐体50内部的腔体，并且沿第一延伸轴线500延伸；进液口52，构造于罐体50的第一端，沿第一延伸轴线500延伸，贯穿罐体50的第一端，并与混合腔51连通；出液口53，构造于罐体50的第二端，贯穿罐体50，并与混合腔51连通。
该混合罐利用进液口52将具有一定压力的气泡和液体的混合溶液送入罐体50内，在罐体50的混合腔51内进行再次混合，利用混合腔51容积增大的特点，使得混合溶液在混合腔51内膨胀，进行增压，使得气泡与液体混合更加充分均匀，本申请通过机械方式实现气泡与液体的混合，所需电子器件少，混合效果好，混合效率高，稳定性高，可以有较长的使用寿命。
在一个实施例中，出液口53的底部高度高于进液口52的顶部高度。
出液口53的底部高度高于进液口52的顶部高度，可以在使用混合罐时，利用气体密度较小，容易上浮的特点，使得气泡和液体混合之后的混合溶液进入到混合腔51内后，能够将混合罐内的空气通过位于进液口52上侧的出液口53尽快排出，提高空气排出效率。
此外，出液口53的底部高度高于进液口52的顶部高度，气泡与液体混合之后，流动方向上与气泡的上升方向一致，因此能够使得气泡的上升方向与液体的流动方向保持一致，保持气泡与液体在从混合罐流出过程中的混合效果。
在一个实施例中，进液口52在垂直于液流方向上的截面为圆形，出液口53在垂直于液流方向上的截面为圆形，混合腔51在垂直于第一延伸轴线500的截面上的面积大于进液口52的截面面积，混合腔51在垂直于第一延伸轴线500的截面上的面积大于出液口53的截面面积。
在本实施例中，气泡和液体的混合溶液在从进液口52进入到混合腔51内时，会因为流通面积的增大形成减速增压效果，能够在混合腔51内进行再次混合，之后再从出液口53流出，由于出液口53的流通面积的减小，会形成加速效果，使得气泡和液体的混合溶液能够以较快的速度从出液口53处流出，并且经喷嘴59喷出，实现对牙齿的清洁。
在一个实施例中，混合腔51内部设置有螺旋芯体54，螺旋芯体54沿第一延伸轴线500延伸，螺旋芯体54与混合腔51的腔壁配合形成螺旋流道57，进液口52和出液口53均与螺旋流道57连通。此处的混合腔51的腔壁即为罐体50的内壁。
在本实施例中，通过在混合腔51内设置螺旋芯体54的方式，可以在混合腔51内进一步形成螺旋流道57，使得气泡和液体的混合溶液在从进液口52进入到混合腔51内后，能够沿着螺旋流道57螺旋流动，并在螺旋流动的过程中在惯性和离心力的作用性，使得气泡和液体能够进行更加充分的混合，提高气泡和液体的混合效率，提高混合均匀度，使得气泡能够更加均匀地分布在液体中，提高混合溶液的牙齿清洁效果。
螺旋芯体54可以直接在混合腔51内与罐体50一体加工出来，例如采用粉末冶金或者3D打印方式一体成型，也可以与罐体50分开加工之后，安装在混合腔51内，与混合腔51的腔壁配合，形成螺旋流道57。
在一个实施例中，螺旋芯体54包括芯轴541和设置在芯轴541的外周壁上的螺旋导流板542，芯轴541沿第一延伸轴线500延伸，螺旋导流板542沿第一延伸轴线500在芯轴541的外周壁上螺旋延伸，芯轴541、螺旋导流板542和混合腔51的腔壁围成螺旋流道57。
在本实施例中，芯轴541和螺旋导流板542一起构成螺旋芯体54，芯轴541可以为螺旋导流板542的设置提供结构基础，同时能够与螺旋导流板542以及混合腔51的腔壁一起配合，形成螺旋流道57，可以方便进行螺旋导流板542的加工以及安装固定。
在一个实施例中，罐体50远离进液口52的一端开口，开口处固定设置有端板55，端板55与罐体50固定连接，端板55与罐体50在配合端面处设置有密封结构56。
在本实施例中，在罐体50的一端开口，可以方便进行混合腔51的加工以及螺旋芯体54的加工或者安装，能够降低混合罐的加工难度，提高加工效率和加工成本。为了实现混合腔51的密封，在开口处设置端板55，端板55与罐体50通过螺栓固定连接，也可以焊接固定，或者是采用其他的方式固定连接，在端板55与罐体50的配合端面处设置密封结构56，能够对端板55与罐体50的配合端面进行密封，有效防止气体和液体从端板55与罐体50的配合位置处发生泄漏，保证混合罐的整体密封效果。
密封结构56可以是密封圈，也可以是密封填料。
在一个实施例中，螺旋导流板542的外壁与混合腔51的腔壁固定连接，螺旋导流板542的内壁与芯轴541固定连接。
在本实施例中，芯轴541通过螺旋导流板542与混合腔51的腔壁固定连接，螺旋导流板542可以直接在芯轴541上加工形成，螺旋导流板542与混合腔51的腔壁之间可以为一体连接，也即直接对罐体50进行加工，直接加工出具有芯轴541和螺旋导流板542的混合 腔51，实现螺旋芯体54与罐体50之间的一体成型。该种结构无需考虑螺旋芯体54的安装固定，因此对于端板55的结构要求简单，加工成本较低。
在一个实施例中，芯轴541的第一端固定设置在端板55上，芯轴541的第二端形成悬臂结构。
在本实施例中，螺旋芯体54可以直接在端板55上加工出来，也可以与端板55分别加工之后固定安装在端板55上，由于螺旋芯体54是安装在端板55上，因此不用考虑螺旋芯体54在混合腔51内的安装，混合腔51可以直接加工出柱形腔，因此能够降低罐体50的加工难度和加工成本，降低混合罐的加工制造成本。
在一个实施例中，螺旋导流板542的内壁与芯轴541一体成型，螺旋导流板542的外壁与混合腔51的腔壁之间间隔设置形成环形流道58，一部分液体沿螺旋流道57流动，一部分液体沿环形流道58流动。
在本实施例中，混合溶液从进液口52进入到混合腔51内后，沿着两条路径流动，一条路径为螺旋导流板542与芯轴541所形成的螺旋流道57，另一条路径为螺旋导流板542与混合腔51的腔壁之间所形成的环形流道58，在螺旋导流板542所形成的螺旋流道57内流动的混合液体，进行螺旋流动的过程中能够进一步促进气泡和液体之间的混合，此外，在惯性等的作用下，沿着螺旋流道57螺旋流动的混合液体一部分会进入到环形流道58内，带动沿着环形流道58流动的混合液体发生螺旋流动，从而使得环形流道58内流动的气泡和液体也能够在螺旋流动作用下进一步混合，此外，由于螺旋流道57内的混合溶液流动速度和方向与环形流道58内的混合溶液流动速度和方向均存在区别，因此两种液体在流动混合的过程中会再次发生混合，进一步提高气泡和液体的混合效果和混合效率。
在一个实施例中，螺旋芯体54还包括设置在芯轴541远离端板55一端的旋切头543，旋切头543设置在进液口52处，以使得从进液口52到达旋切头543的液体形成旋流。
在本实施例中，通过在进液口52处的芯轴541端部设置旋切头543，能够利用旋切头543使得混合溶液形成旋流结构，此外还可以利用旋切头543对混合溶液进行旋切，使得气泡与液体的混合更加均匀。
在一个实施例中，旋切头543包括前锥段544和后锥段545，前锥段544的截面积沿着远离进液口52的方向递增，后锥段545的截面积沿着远离进液口52的方向递减，前锥段544和后锥段545在连接位置处的截面积最大。
在本实施例中，旋切头543包括前锥段544和后锥段545，利用前锥段544可以与混合腔51的腔壁之间形成截面积逐渐变小的过流通道，使得混合溶液在流经前锥段544的过程中，会形成加速减压的效果，当混合溶液流过前锥段544之后，进入到后锥段545与混合腔51的腔壁之间所形成的截面积逐渐变大的过流通道，使得混合溶液在流经后锥段545的过程中，会形成减速加压的效果，通过前锥段544和后锥段545的配合作用，能够使得混合溶 液在流经旋切头543的过程中，不仅要受到旋切头543的旋切作用，同时要收到前锥段544和后锥段545所形成的收缩和扩张作用，使得气泡与液体能够在螺旋流动的过程中形成再混合，进一步提高气泡与液体的混合效率和混合效果。
在一个实施例中，旋切头543包括多个旋切刀片546，相邻的旋切刀片546之间形成旋切流道547，旋切流道547与螺旋流道57连通。
在旋切流道547的导流作用下，被旋切刀片546旋切后的混合液体能够进入到螺旋流道57内流动，并在螺旋流道57的螺旋导流作用下再次进行混合，可以进一步提高气泡和液体的混合效果，提高制备纳米气泡水的效率。
高压的气液混合溶液从进液口52流入，高压的气液混合溶液沿着旋切头543的倒圆锥中的旋切流道547，以及倒圆锥与罐体50的内腔形成的流道，进入后续的螺旋流道57内，不断地被螺旋流道57的外沿旋切，形成更加混合均匀的气液混合溶液，提升制备纳米气泡水的效率。
在一个实施例中，旋切头543的头部伸入进液口52，并与进液口52的出液端之间形成环形通道。
在本实施例中，旋切头543的头部部分伸入进液口52内，能够对进液口52的出液端空间形成挤压，使得气泡和液体的混合溶液在从进液口52流入混合腔51的过程中，能够更加集中地流经旋切头543，可以在旋切头543的旋切作用下更加充分地被分解呈更小的气泡，与液体进行更加充分的混合，提高气泡和液体的混合效率，提高气泡与液体的混合溶液对牙齿的清洁效果。
在一个实施例中，出液口53的延伸方向垂直于第一延伸轴线500。
在一个实施例中，出液口53的延伸方向平行于第一延伸轴线500。
结合参见图13所示，本申请还提供了一种牙齿清洁器具，包括文丘里管10、进水管20、出水管30、水泵40和喷嘴59，还包括上述的混合罐，文丘里管10的进水段11与进水管20连接，文丘里管10的出水段15通过出水管30与水泵40连接，文丘里管10、水泵40、混合罐和喷嘴59依次连接。
在本实施例中，牙齿清洁器具还包括水箱，水箱与文丘里管10的进水段11连通，喷嘴与水泵40连通，水箱中的水通过文丘里管10与气体混合后，从文丘里管10的出水段15输出，通过水泵40进行加压再混合后，从喷嘴59喷出，对牙齿进行清洁，水泵40使水和气体的压力足够冲洗干净牙齿，保证牙齿清洁器具的使用效果。
混合溶液从水泵40的出口流入混合罐的进液口52，在混合罐的作用下，以及喷嘴59的限流孔的作用下，混合罐里会有一定的压力，在此压力作用下，混合罐里的气液混合溶液，会进一步的充分混合。
在本实施例中，当水泵40运行时，通过水泵40的自吸能力，水箱里的水通过文丘里管10，同时文丘里管10的进气孔进入气体，形成气泡与液体混合的气液混合溶液，气液混合溶液再进入水泵40的进水孔，通过水泵40的增压，形成具有一定压力的气液混合溶液，从水泵40的出口流出，再流入本申请实施例的混合罐中，在混合罐的混合作用下，形成高压均匀的气液混合溶液，然后可以从喷嘴59喷出，利用气泡溶液进行牙齿清洁。
结合参见图7至图13所示，根据本申请的实施例，文丘里管10包括：第二延伸轴线600，沿第一方向延伸；进水段11，环绕第二延伸轴线600形成筒结构；收缩段12，与进水段11连接，并环绕第二延伸轴线600形成筒结构；喉部13，与收缩段12连接，并环绕第二延伸轴线600形成筒结构；扩张段14，与喉部13连接，并环绕第二延伸轴线600形成筒结构；出水段15，与扩张段14连接，并环绕第二延伸轴线600形成筒结构；进水段11、收缩段12、喉部13、扩张段14和出水段15沿第二延伸轴线600的延伸方向依次设置；进气段16，与第二延伸轴线600呈预设夹角，并连接至喉部13。
在本实施例中，进水段11和出水段15均为直管段，从进水段11进入的水的流速和压力是已知的，直管的进水段11使得在进水段11中的水的流速和压力不发生变化，能够根据收缩段12、喉部13和扩张段14的管径和长度计算出从出水段15流出的水的流速和压力，并且直管的出水段15使得水经过扩张段14后，液流和压力都不再发生变化，使得进入和输出文丘里管10的水的流速和压力都能变为已知，进而使得能够根据出水的流速和压力的需求控制进水的流速和压力。收缩段12的通流截面减小，经过收缩段12的水的流速增大、压力减小，进气段16连通在收缩段12后的喉部13的初始位置，在水的流速增加的位置进气，此处的水的流速较大，使得进气段16内形成负压，进而使得更多的气体能够持续性、顺利地进入喉部13。扩张段14的通流截面增大，经过扩张段14的水的流速减小、压力增大，压力越大的水与气体混合的量越大、越均匀，扩张段14配合收缩段12，使大量的气体持续进入喉部13，并随液流一同流入扩张段14，与大量高压的水混合，增加气体与水的混合效率。
需要说明的是，从流体力学和工程热力学原理可知，对不可压缩流体的连续性方程，A1V1＝A2V2，式中：A1，A2为管道的截面积，单位m2；V1，V2为流体的流速，单位m/s；即由上式可知，截面增大，流速减少；截面减少，流速增大。对于水平管路，按照不可压缩流体的伯努利理想能量方程式中：P1，P2为截面A1，A2处相应的压力，单位Pa；V1，V2为截面A1，A2处相应的流速，单位m/s；ρ---液体的密度，kg/m2；由上式可知，流速增大，压力降低。结合理论原理，文丘里管10在喉部13面积小的部分，速度大，压力小，即容易形成负压，为此在喉部13处，设计进气段16，当喉部13形成负压时，则可以通过进气段16吸气，与进水段11流入的液体形成气液混合溶液。
进气段16与第二延伸轴线600的夹角为0°～90°，即气流流动方向与液流方向相同，使得进入喉部13的气体能够随着液流一同流动，可以与液流一起进行混合流动，能够避免气流流动方向与液流方向相反，导致气流无法顺利混入液流一起流动的问题，保证了气体和液体的有效混合。
在一个实施例中，进气段16的进气孔161的延伸方向与第二延伸轴线600的夹角为30°～60°。
结合参见图7至图13所示，本申请的一个实施例中，收缩段12的收缩角度θ1的取值范围为20°～25°。
在本实施例中，收缩段12的收缩角度范围经过模拟检测得到，通过该角度范围设置，能够使经过收缩段12的水的流速在需求范围内，使负压能够顺利形成，并且可以方便引入气流。小于该角度范围会导致经过收缩段12的水的流速变化小，无法形成需求的负压状态，容易导致气流引入量不足，无法生成足够的气泡，满足洗牙要求；大于该角度范围会导致液流速过快，喉部直径过小，经过喉部的液流流量过小，使得气流无法充分融入到液流内，液流中无法混合足够的气体，无法生成足够的气泡，影响用户体验。
结合参见图7至图13所示，本申请的一个实施例中，收缩段12的收缩角度θ1为21°。
在本实施例中，21°为收缩段12的最佳收缩角度，通过模拟检测得到，保证形成的负压使吸入喉部13的气体的量最佳，进而使气泡与液体的混合量达到最佳。
结合参见图7至图13所示，本申请的一个实施例中，扩张段14的扩张角度θ2的取值范围为5°～8°。
在本实施例中，扩张段14的扩张角度范围经过模拟检测得到，通过该角度范围设置，能够使得经过扩张段14的水的压力在需求范围内，使水与气体的混合量在需求范围内，可以利用扩张段14的扩压实现对引入气流与液流的融合促进，提高气流与液流的融合效果。小于该角度范围会导致水的压力无法增加到需求范围，难以起到有效的增压促进气流融入的效果；大于该角度范围会导致经过扩张段14的水的流速减小幅度过大，即导致液流过慢，影响后续水的输出流量要求。
结合参见图7至图13所示，本申请的一个实施例中，扩张段14的扩张角度θ2为8°。
在本实施例中，8°为扩张段14的最佳扩张角度，通过模拟检测得到，使得经过扩张段14的水的压力能够有效促进气流在液流内的融合，提高气泡和液流的混合效果，保证用户体验感最佳。
结合参见图7至图13所示，本申请的一个实施例中，喉部13的直径为d0，喉部13的长度为L0，L0＝(1±0.05)*d0。
在本实施例中，喉部13起到引流的作用，其直径与收缩段12和扩张段14的直径偏差不需要太多，喉部13的长度也不需要过长，只需要保证经过喉部13的水的流速和压力达到需求。
结合参见图7至图13所示，本申请的一个实施例中，喉部13的直径通过如下公式获得：

其中A0为喉部13的截面积，单位为m2，Qt为室温下的水泵40流量，单位为m3/h，u0为液流通过喉部13的流速，单位为m/s，d0为喉部13直径，单位为m。
在本实施例中，Qt即为已知的设计流量，喉部13的直径与已知的设计流量和经过喉部13的水的流速有关，一方面，可以根据实际需要的水的流速，设计喉部13的直径；另一方面，可以根据喉部13的直径，计算出水的流速，使得经过文丘里管10的水的流速和流量在合适的范围内。
根据文丘里管10的原理和水泵40的流量、压力参数以及水泵40的进液口的直径，可以设计出合理的喉部结构，使得喉部13的直径能够与液流流量和压力等进行匹配，形成合适的负压，保证气流的引入量，满足气流与液流的混合需求。在一个实施例中，进水段11的管径是以水泵40的进液口确定，进水段11的管径为3.3mm，水泵40的额定流量为12±10％L/h、流速为0.8m/s，根据上式能够计算出喉部13的截面积，进而确定出喉部13的设计直径。
在本实施例中，Qt和u0的数值通过模拟检测得到或者在实际应用的过程中得到，该数值使得水的流速在合理范围内，使水的压力在需求范围内，并使得气体与水混合更加均匀，进而使得从牙齿清洁器具的输出端输出的气泡与液体的混合物能够满足清洁使用的要求，用户能够有效地清洁干净牙齿中的对应部位。
结合参见图7至图13所示，本申请的一个实施例中，收缩段12沿第二延伸轴线600的长度其中d1为收缩段12的进口端直径，单位为m，d0为喉部13直径，单位为m。
在本实施例中，收缩段12的进口端直径即为进水段11的直径，收缩段12的长度是通过进水段11的直径和喉部13直径确定的，即通过收缩段12上下游两端的直径确定的。通过该相关性的关系，使得经过收缩段12的水的流速能够达到需求流速，形成的负压能够达到需求负压，进而使得进气量也能够达到需求。
结合参见图7至图13所示，本申请的一个实施例中，扩张段14沿第二延伸轴线600的长度其中d2为扩张段14的出口端直径，单位为m，d0为喉部13直径，单位为m。
在本实施例中，扩张段14的出口端即为出水段15的直径，扩张段14的长度使通过出水段15的直径和喉部13直径确定的，即通过扩张段14上下游两端的直径确定的。通过该相关性的关系，使得经过扩张段14的水的压力能够达到需求压力，与气体混合的量也能够达到需求。
结合参见图7至图13所示，本申请的一个实施例中，进气段16的进气孔161孔径通过如下公式获得：
S×U＝Q；
其中S为进气孔161的截面积，单位为m2，U为进气孔161的气体流速，单位为m/s，Q为进气孔161的气体流量，单位为m3/s，d3为进气孔161的直径。
在本实施例中，根据气体的溶解度和气体的流速得到进气孔161的直径参数，能够最大程度保证进气量满足需求。进气孔161为圆孔，与气体的溶解度和水的流速进行良好的匹配。
需要说明的是，本专利中，进气孔161的大小，会影响水泵40出口的压力，根据进气孔161每秒的进气量时水泵40额定流量的18％～20％，再以其流速值，就能够确定进气孔161的截面积，进一步确定进气孔161的直径范围，得到上述公式。
结合参见图7至图13所示，本申请的一个实施例中，d3的取值范围为0.04mm～1mm。
在本实施例中，根据制备纳米气泡的浓度以及水泵40的性能曲线，最终通过实验对比，确定进气孔161的孔径范围，使得单位时间内的进气量满足需求，不会过量导致液流中气泡含量过高，无法有效清洁牙齿，也不会量太少导致液流中气泡含量低，增加用水量，浪费资源。
结合参见图7至图13所示，本申请的一个实施例中，进气段16包括进气孔161，进气孔161的通流面积能够调节。
在本实施例中，不同的用户对于气泡的数量可能会有需求，进气孔161可调节的设计，使得不同的用户能够根据自己的需求和喜好，调节进气量，进而调节输出的水中的气泡含量，使用自由度更高，更能满足多类型用户的要求。
结合参见图7至图13所示，本申请的一个实施例中，进气段16套设有外套管17，外套管17与进气段16螺接，外套管17的端部设置有端板171，端板171上开设有过流孔172，端板171朝向进气孔161的一侧设置有调节锥173，调节锥173沿着远离端板171的方向截面递减，调节锥173伸入进气孔161内，并与进气孔161的腔壁之间形成过流间隙，过流孔172与过流间隙连通。
在本实施例中，沿第一方向旋拧外套管17，进气孔161的进气量增加，水中的气泡含量增加；沿第二方向旋拧外套管17，进气孔161的进气量减小，水中的气泡含量减少。第一方向和第二方向其中之一为顺时针方向，其中之另一为逆时针方向。旋拧调节的方式使得用户调节更加简单方便，在每个调节位置下，螺接的螺纹之间都能够相互锁定，使得有多个调节档位调节进气量的大小，并且所有调节档位都不需要增加额外的锁定结构，使用方便。
从以上的描述中，可以看出，本申请的上述的实施例实现了如下技术效果：通过机械方式实现气泡与液体混合输出，稳定性高，寿命长，能够作为手持式小家电或个人护理类的小家电使用，轻巧、便携。具体地，水从进水段进入，经过收缩段后流速增大、压力降低，再依次经过喉部和扩张段后，流速减小、压力升高，最后从出水段输出，此时出水的水压大于进水的水压，通过文丘里管对水进行增压，并且在喉部增设进气段，高速的液流能够形成负压，使更多的气体顺利进入喉部，增加气体进入量，气泡液体混合后从出水段一同输出。本申请的文丘里管实现了气泡与液体的混合，不需要增加气泵和水泵，节省成本，减小牙齿清洁器具的体积，增加便携性。
以上所述仅为本申请的实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (14)

  1. 一种混合罐，其特征在于，包括：
    罐体(50)，所述罐体(50)具有沿第一方向延伸的第一延伸轴线(500)，所述罐体(50)沿所述第一延伸轴线(500)延伸；
    混合腔(51)，为构造于所述罐体(50)内部的腔体，并且沿所述第一延伸轴线(500)延伸；
    进液口(52)，构造于所述罐体(50)的第一端，沿所述第一延伸轴线(500)延伸，贯穿所述罐体(50)的第一端，并与所述混合腔(51)连通；
    出液口(53)，构造于所述罐体(50)的第二端，贯穿所述罐体(50)，并与所述混合腔(51)连通。
  2. 根据权利要求1所述的混合罐，其特征在于，所述进液口(52)在垂直于液流方向上的截面为圆形，所述出液口(53)在垂直于液流方向上的截面为圆形，所述混合腔(51)在垂直于第一延伸轴线(500)的截面上的面积大于所述进液口(52)的截面面积，所述混合腔(51)在垂直于第一延伸轴线(500)的截面上的面积大于所述出液口(53)的截面面积；或，所述出液口(53)的底部高度高于所述进液口(52)的顶部高度。
  3. 根据权利要求1所述的混合罐，其特征在于，所述混合腔(51)内部设置有螺旋芯体(54)，所述螺旋芯体(54)沿所述第一延伸轴线(500)延伸，所述螺旋芯体(54)与所述混合腔(51)的腔壁配合形成螺旋流道(57)，所述进液口(52)和所述出液口(53)均与所述螺旋流道(57)连通。
  4. 根据权利要求3所述的混合罐，其特征在于，所述螺旋芯体(54)包括芯轴(541)和设置在所述芯轴(541)的外周壁上的螺旋导流板(542)，所述芯轴(541)沿所述第一延伸轴线(500)延伸，所述螺旋导流板(542)沿所述第一延伸轴线(500)在所述芯轴(541)的外周壁上螺旋延伸，所述芯轴(541)、所述螺旋导流板(542)和所述混合腔(51)的腔壁围成所述螺旋流道(57)。
  5. 根据权利要求4所述的混合罐，其特征在于，所述罐体(50)远离所述进液口(52)的一端开口，所述开口处固定设置有端板(55)，所述端板(55)与所述罐体(50)固定连接，所述端板(55)与所述罐体(50)在配合端面处设置有密封结构(56)。
  6. 根据权利要求4或5所述的混合罐，其特征在于，所述螺旋导流板(542)的外壁与所述混合腔(51)的腔壁固定连接，所述螺旋导流板(542)的内壁与所述芯轴(541)固定连接。
  7. 根据权利要求5所述的混合罐，其特征在于，所述芯轴(541)的第一端固定设置在所述端板(55)上，所述芯轴(541)的第二端形成悬臂结构。
  8. 根据权利要求7所述的混合罐，其特征在于，所述螺旋导流板(542)的内壁与所述芯轴(541)一体成型，所述螺旋导流板(542)的外壁与所述混合腔(51)的腔壁之间间隔设置形成环形流道(58)，一部分液体沿所述螺旋流道(57)流动，一部分液体沿所述环形流道(58)流动。
  9. 根据权利要求7或8所述的混合罐，其特征在于，所述螺旋芯体(54)还包括设置在所述芯轴(541)远离所述端板(55)一端的旋切头(543)，所述旋切头(543)设置在进液口(52)处，以使得从所述进液口(52)到达所述旋切头(543)的液体形成旋流。
  10. 根据权利要求9所述的混合罐，其特征在于，所述旋切头(543)包括前锥段(544)和后锥段(545)，所述前锥段(544)的截面积沿着远离所述进液口(52)的方向递增，所述后锥段(545)的截面积沿着远离所述进液口(52)的方向递减，所述前锥段(544)和所述后锥段(545)在连接位置处的截面积最大。
  11. 根据权利要求9所述的混合罐，其特征在于，所述旋切头(543)包括多个旋切刀片(546)，相邻的所述旋切刀片(546)之间形成旋切流道(547)，所述旋切流道(547)与所述螺旋流道(57)连通。
  12. 根据权利要求9所述的混合罐，其特征在于，所述旋切头(543)的头部伸入所述进液口(52)，并与所述进液口(52)的出液端之间形成环形通道。
  13. 根据权利要求1至5中任一项所述的混合罐，其特征在于，所述出液口(53)的延伸方向垂直于所述第一延伸轴线(500)；或，所述出液口(53)的延伸方向平行于所述第一延伸轴线(500)。
  14. 一种牙齿清洁器具，包括文丘里管、水泵和喷嘴，其特征在于，还包括权利要求1至13中任一项所述的混合罐，所述文丘里管、所述水泵、所述混合罐和所述喷嘴依次连接。
PCT/CN2023/128692 2022-12-30 2023-10-31 混合罐及牙齿清洁器具 WO2024139674A1 (zh)

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US20040131514A1 (en) * 2003-01-03 2004-07-08 Huei-Tarng Liou Apparatus for dissolving gas into liquid
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