WO2020233654A1 - 作物清洗机 - Google Patents

作物清洗机 Download PDF

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Publication number
WO2020233654A1
WO2020233654A1 PCT/CN2020/091488 CN2020091488W WO2020233654A1 WO 2020233654 A1 WO2020233654 A1 WO 2020233654A1 CN 2020091488 W CN2020091488 W CN 2020091488W WO 2020233654 A1 WO2020233654 A1 WO 2020233654A1
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WO
WIPO (PCT)
Prior art keywords
water
ozone
washing tub
cleaning
port
Prior art date
Application number
PCT/CN2020/091488
Other languages
English (en)
French (fr)
Inventor
新村光则
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
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
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to CN202080036226.0A priority Critical patent/CN113825435B/zh
Publication of WO2020233654A1 publication Critical patent/WO2020233654A1/zh

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
    • A23N12/02—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for washing or blanching
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/24—Devices for washing vegetables or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/12—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid solely by gases, e.g. air or steam, introduced into the washing liquid

Definitions

  • the invention relates to a crop cleaning machine for cleaning vegetables, fruits and other crops.
  • Patent Document 1 describes a vegetable washing machine, which contains vegetables and fruits in a washing container containing water, and releases many bubbles from a bubble generating device arranged below the inside of the washing container. When the bubbles burst and annihilate, The vibration is generated to clean vegetables and fruits.
  • the air bubble generating device is arranged at a position eccentric from the center of the washing container, and the generation of air bubbles causes an imbalance, thereby generating water flow in the washing container.
  • the water flow can exert the effect of washing vegetables and fruits.
  • Leafy vegetables, apples, and other crops with a smaller specific gravity than water tend to float in the water stored in the cleaning container.
  • the water flow is generated by the unbalanced generation of bubbles, the water flow is difficult to exert a strong mechanical force for actively rotating the crops up and down or alternately moving up and down. Therefore, when cleaning such crops, the part exposed to the water surface becomes difficult to clean, and uneven cleaning may easily occur.
  • Patent Document 1 Japanese Patent Laid-Open No. 56-106581
  • the present invention has been completed in view of this problem, and its object is to provide a crop cleaning machine that can improve cleaning performance while simultaneously removing and sterilizing pesticides.
  • the crop cleaning machine of the main aspect of the present invention is provided with: a cylindrical cleaning bucket for storing crops; a pump that sucks and discharges the water stored in the cleaning bucket; an ozone generating unit that generates air containing ozone; and a bubble water generator Section, taking in the water discharged from the pump and the air containing ozone generated by the ozone generating section, and bubbly water formed by mixing small bubbles containing ozone in the water is sprayed from the spray port of the bubbly water generating section To the inside of the cleaning bucket.
  • the spray port is provided at a position deviated from the central axis of the washing tub at the bottom of the washing tub, and sprays the bubble water in an obliquely upward direction, which is the same as when looking down on the washing tub.
  • the radial direction from the central axis intersects.
  • the vortex water flow can be generated in the washing tub by spraying bubble water from the spray port, the crops in the washing tub can easily rotate up and down or alternate up and down, and it is easy for the small bubbles contained in the bubble water to contact the crops without dead ends. .
  • uneven cleaning of crops caused by the action of small bubbles can be suppressed. Therefore, the cleaning performance can be improved.
  • the ozone dissolves in the water in the washing tub to generate ozone water, which contacts the crops.
  • the pesticide remaining on the crop can be removed by the oxidizing power of ozone, and the crop can be sterilized by the ozone.
  • the following structure may be adopted: it is further provided with a water dispersing part including a nozzle located on the upper part of the washing bucket, and the water discharged from the pump is spread from the nozzle to the washing machine. Inside the barrel.
  • the exposed portion can be cleaned by the sprayed water. Therefore, uneven cleaning of crops can be further suppressed.
  • the inner bottom surface of the cleaning bucket is provided with a drainage port for discharging water in the cleaning bucket and a suction port for sucking in the water supplied to the pump.
  • the inner bottom surface has an inclined surface inclined downward toward the drain port, and the suction port protrudes upward from the inclined surface.
  • the dirt such as fine mud removed from the crops easily flows to the drain port along the inclined surface and is not easily accumulated on the inclined surface. Furthermore, even if dirt accumulates on the inclined surface, it is difficult for the dirt to reach the opening position of the suction port, and it is unlikely that the accumulated dirt will be sucked by the pump from the suction port together with water.
  • a structure may be adopted that further includes an introduction path that guides air containing ozone from the ozone generation part to the bubble water generation part.
  • the ozone generating unit is arranged at a position lower than the water level when water is stored in the washing tub, and a part of the introduction path is raised to the water level.
  • the cleaning bucket has an opening on the top surface, and the opening is blocked by a cover in an openable and closable manner.
  • the cover is provided with a filter chamber that houses a filter for removing ozone, and the filter chamber is provided with an ozone-containing filter for putting in the cleaning barrel
  • the ozone-containing air in the washing tub can be discharged to the outside after removing the ozone.
  • the path of the air inlet from the opening to the filter chamber becomes longer, even if water enters the air inlet when cleaning crops, it is not easy to reach the filter chamber, and the filter is not easily wetted by water.
  • Fig. 1 is a front cross-sectional view of the crop cleaning machine taken along the center of the embodiment.
  • FIG. 2 is a side cross-sectional view of the crop cleaning machine taken along the position of the bubble water generator according to the embodiment.
  • Fig. 3 is a plan view of the crop cleaning machine with a cover and a filter removed according to the embodiment.
  • Fig. 4 is a diagram showing a partial cross-sectional view of the configuration of the main part of the crop cleaning machine of the embodiment.
  • Fig. 5 is a plan view of the crop cleaning machine with the cover omitted, showing a state in which the crop cleaning operation is being performed according to the embodiment.
  • 10 washing bucket; 10a: opening; 10b: inner bottom surface; 11a: inclined surface; 12: drainage port; 13: suction port; 15: ejection port; 20: cover; 24: filter chamber; 26: ozone removal filter Filter (filter); 27: air inlet; 28: air outlet; 50: ozone generator (ozone generating part); 54: introduction path; 60: bubble water generator (bubble water generating part); 91: diffuser pipe ( Dispersion Department); 93: Nozzle.
  • FIG. 1 is a front cross-sectional view of the crop cleaning machine 1 taken along the central position.
  • FIG. 2 is a side cross-sectional view of the crop cleaning machine 1 taken along the position of the bubble water generator 60.
  • Fig. 3 is a plan view of the crop cleaning machine 1 with the cover 20 and the filter 80 removed.
  • FIG. 4 is a diagram showing a partial cross-sectional view of the main part of the crop cleaning machine 1. It should be noted that in FIGS. 1, 2 and 4, the water level when water is stored in the washing tub 10 is indicated by a one-dot chain line, and the flow of water and air is appropriately indicated by arrows.
  • the crop cleaning machine 1 is provided with a cleaning bucket 10 for storing and cleaning crops such as fruits and vegetables.
  • the washing tub 10 has a cylindrical shape with a bottom and an open top surface.
  • the opening 10a on the top surface is covered by the cover 20 so as to open and close.
  • the washing tub 10 is supported by a cylindrical support frame 30 having a bottom.
  • the internal space of the support frame 30 formed below the washing tub 10 constitutes a machine room 31.
  • the washing tub 10, the cover 20, and the support frame 30 are formed of, for example, a resin material.
  • a pump 40, an ozone generator 50, and a bubble water generator 60 are arranged in the machine room 31.
  • the pump 40 sucks in and discharges the water stored in the washing tub 10.
  • the ozone generator 50 generates air containing ozone.
  • the bubble water generator 60 takes in the water discharged from the pump 40 and the air containing the ozone generated by the ozone generator 50, and generates bubble water in which small bubbles containing ozone are mixed in the water through a two-phase flow rotation method, and The bubble water is sprayed from the spray port 15 to the inside of the washing tub 10.
  • a control unit 70 for controlling the operation of the pump 40 and the ozone generator 50 is arranged in the machine room 31.
  • the ozone generator 50 corresponds to the ozone generating part of the present invention
  • the bubbly water generator 60 corresponds to the bubbly water generating part of the present invention.
  • a drain recess 11 is formed in the center of the inner bottom surface 10b of the washing tub 10. In order to avoid the fan blades 43 of the pump 40, the drainage recess 11 has a partially missing circular shape.
  • the bottom surface of the drain recess 11 is an inclined surface 11a that slopes downward from the left to the right, and a drain hole 11b is formed in the lowest part of the inclined surface 11a.
  • a drain port 12 for draining the water in the washing tub 10 is provided on the bottom surface of the drain hole 11b.
  • the inclined surface 11 a of the drain recess 11 is inclined downward toward the drain port 12.
  • the drainage recess 11 is provided with a suction port 13 for sucking in the water supplied to the pump 40.
  • the suction port 13 has a cylindrical shape and protrudes upward from the inclined surface 11a, so that its opening position is higher than the position of the inclined surface 11a. Moreover, the protrusion height of the suction port 13 is set to be greater than the depth of the drainage recess 11.
  • a cylindrical connection port 12a connected to the drain port 12 and a cylindrical connection port 13a connected to the suction port 13 are formed on the outer bottom surface of the washing tub 10.
  • the drain recess 11 is covered by the filter 80.
  • the filter 80 is formed of, for example, a metal material, and has a planar shape corresponding to the planar shape of the drainage recess 11.
  • the center portion of the filter 80 bulges upward to form a handle 81.
  • the tip of the suction port 13 enters a space formed on the back side of the handle 81.
  • many water passage holes 82 are formed around the handle 81, and a plurality of vent holes 83 are formed on the upper surface of the handle 81 to remove air remaining in the space on the back side of the handle 81. Foreign matter such as leaf chips from crops is caught by the filter 80 and cannot easily enter the drain recess 11.
  • a rectangular spray recess 14 is formed on the inner bottom surface 10 b of the washing tub 10 on the right side of the drain recess 11.
  • the injection recess 14 has an injection surface 14a facing diagonally forward and upward, and an inclined surface 14b provided in front of the injection surface 14a and orthogonal to the injection surface 14a.
  • a circular injection port 15 is formed in the center of the injection surface 14a.
  • the position of the injection port 15 is a position deviated from the central axis P of the washing tub 10.
  • the position of the ejection port 15 is a position closer to the inner peripheral surface 10c of the washing tub 10 than the center axis P in the radial direction from the center axis P of the washing tub 10.
  • the inclined surface 14b is interrupted in front of the ejection surface 14a, and this part is a horizontal bottom surface 14c.
  • the bottom surface 14c is connected to the drain hole 11b of the drain recess 11 through the communication groove 16.
  • bottom surface 14c and the communication groove 16 may be gently inclined toward the drain hole 11b side. Furthermore, the area of the inner bottom surface 10 b of the washing tub 10 excluding the drainage recess 11 and the injection recess 14 may be gently inclined toward the drainage recess 11.
  • a pipe unit 90 is provided on the inner peripheral surface 10c of the washing tub 10.
  • the pipe unit 90 is a member formed by integrally forming a water dispersing pipe 91 for dispersing water into the washing tub 10 and a vent pipe 92 for flowing air containing ozone so as to be arranged in the circumferential direction of the washing tub 10.
  • the pipe unit 90 is formed of, for example, a resin material.
  • a water level line 17 extending in the circumferential direction is formed on the front surface of the pipe unit 90 at a predetermined height position.
  • the water level line 17 serves as a reference for the water level when the user manually stores water in the washing tub 10.
  • the water dispersion pipe 91 is a rectangular pipe with an inverted L shape that is flat in the radial direction of the washing tub 10. At the upper end of the water dispersing pipe 91, three nozzles 93 are arranged so as to be arranged in the circumferential direction of the washing tub 10. Each nozzle 93 has a cylindrical shape and protrudes toward the inside of the washing tub 10.
  • a cylindrical inflow port 94 is formed at the lower end of the water dispersing pipe 91. In the inflow port 94, the distal end side is thinner than the proximal end side, and a ring-shaped gasket 95 is attached to the proximal end side. It should be noted that the water dispersing pipe 91 corresponds to the water dispersing part of the present invention.
  • the vent pipe 92 extends upward from one end located on the bottom side of the washing tub 10 and then is folded back near the opening 10a of the washing tub 10 and extends downward to the other end located on the bottom side of the washing tub 10.
  • the barrel 10 has a flat square tube in the radial direction.
  • the folded position of the vent pipe 92 is higher than the water level line 17, that is, the water level of the water stored in the washing tub 10.
  • a cylindrical air inlet 96 is formed at one end of the vent pipe 92, and a cylindrical air outlet 97 is formed at the other end of the vent pipe 92. In the air inlet 96 and the air outlet 97, the tip end side is thinner than the base end side, and ring-shaped gaskets 98 and 99 are fitted on the base end side.
  • the lower end portion of the pipe unit 90 is connected to the connecting portion 18 provided on the inner bottom surface 10 b of the washing tub 10.
  • the connecting portion 18 includes an insertion recess 18 a into which the lower end of the pipe unit 90 is inserted.
  • Through holes 19a, 19b, and 19c through which the inflow inlet 94, the air inlet 96, and the air outlet 97 pass are formed on the bottom surface of the fitting recess 18a.
  • the tip side of the inflow port 94, the air inlet 96, and the air outlet 97 passing through the respective through holes 19a, 19b, and 19c protrude below the washing tub 10.
  • the base end sides of the inflow port 94, the air inlet 96, and the air outlet 97 and the respective through holes 19a, 19b, and 19c are water-sealed by gaskets 95, 98, and 99.
  • the left and right side surfaces 90a of the pipe unit 90 are formed as inclined surfaces. Thereby, it is possible to prevent crops moving by the water flow in the washing process from colliding with the side surface 90a of the pipe unit 90, causing damage or stagnation.
  • the sparkling water generator 60 includes a bottomed cylindrical casing 61.
  • the wall of the washing tub 10 having the spray surface 14 a doubles as the front surface plate 62 of the sparkling water generator 60, and a housing 61 is attached to the back surface of the front surface plate 62.
  • a gasket 63 for water sealing is provided between the housing 61 and the front surface plate 62.
  • An outer cylindrical wall 64 coaxial with the housing 61 is formed on the inner surface of the bottom wall of the housing 61.
  • an inner cylindrical wall 65 coaxial with the housing 61 and the outer cylindrical wall 64 is formed so as to overlap the inner side of the outer cylindrical wall 64.
  • a suction port 66 is formed on the bottom wall of the casing 61 on the central axis of the casing 61, and a cylindrical connection port 66a connected to the suction port 66 is formed on the outer surface of the bottom wall.
  • a water inlet 67 opening in the tangential direction of the circumferential wall is formed on the peripheral wall of the housing 61 near the bottom wall, and a cylindrical connection port connected to the water inlet 67 and protruding in the tangential direction of the peripheral wall is formed on the outer surface of the peripheral wall 67a.
  • the injection port 15 formed on the injection surface 14 a is located on the central axis of the housing 61 and becomes the injection port of the bubble water generator 60.
  • the pump 40 includes a pump housing 41, a motor 42 and fan blades 43.
  • An impeller (not shown) is provided inside the pump casing 41.
  • the pump housing 41 is provided with a cylindrical first discharge port 44, a cylindrical second discharge port 45 branched from the first discharge port 44, and a cylindrical suction port 46.
  • the motor 42 rotationally drives the impeller. When the impeller rotates, water is sucked from the suction port 46 and water is discharged from the first discharge port 44 and the second discharge port 45.
  • the fan blade 43 is rotationally driven by the motor 42 together with the impeller, and the motor 42 is cooled.
  • One end of the first water supply pipe 47 is connected to the first discharge port 44.
  • the other end of the first water supply pipe 47 is connected to the connection port 67 a of the water inlet 67 of the bubble water generator 60.
  • the second discharge port 45 is connected to one end of the second water supply pipe 48.
  • the other end of the second water supply pipe 48 is connected to the inflow port 94 of the water dispersion pipe 91.
  • One end of the suction pipe 49 is connected to the suction port 46.
  • the other end of the suction pipe 49 is connected to the connection port 13 a of the suction port 13 of the washing tub 10.
  • the ozone generator 50 contains, for example, a pair of electrodes, and takes in air in the machine room 31, and generates discharge such as corona discharge through the pair of electrodes, and generates ozone from oxygen contained in the air.
  • the air containing the generated ozone is discharged from the discharge port 51 of the ozone generator 50.
  • One end of the first introduction pipe 52 is connected to the discharge port 51.
  • the other end of the first introduction pipe 52 is connected to the air inlet 96 of the ventilation pipe 92.
  • One end of the second introduction pipe 53 is connected to the air outlet 97 of the ventilation pipe 92.
  • the other end of the second introduction pipe 53 is connected to the connection port 66 a of the suction port 66 of the bubble water generator 60.
  • the first introduction pipe 52, the ventilation pipe 92, and the second introduction pipe 53 constitute an introduction path 54 for guiding the air containing ozone from the ozone generator 50 to the bubble water generator 60.
  • a part of the introduction path 54 is raised at the position of the ventilation pipe 92 to be higher than the position of the water level line 17 of the washing tub 10, that is, the water level of the water stored in the washing tub 10.
  • drain pipe 100 One end of the drain pipe 100 is connected to the connection port 12a of the drain port 12 of the washing tub 10.
  • the drain pipe 100 penetrates the support frame 30 and extends to the outside.
  • an external drain rotary valve 110 is connected at the other end of the drain pipe 100.
  • the external drain spin valve 110 is opened and closed by an opening and closing operation performed by the operating lever 111.
  • a drain hose (not shown) can be connected to the discharge port 112 of the external drain spin valve 110.
  • the cover 20 includes a disk-shaped top plate portion 21 and a cylindrical body portion 22 formed on the back surface of the top plate portion 21.
  • the diameter of the top plate 21 is set to be approximately the same as the outer diameter of the washing tub 10.
  • the outer diameter of the body portion 22 is set to be substantially the same as the inner diameter of the washing tub 10.
  • An annular gasket 23 is provided on the outer peripheral surface of the body portion 22.
  • a hollow disk-shaped filter chamber 24 is provided in the center part of the top plate part 21 of the cover 20.
  • the filter chamber 24 is comprised by the recessed part 21a formed in the top plate part 21, and the cover 25 which covers the recessed part 21a from above.
  • An ozone removal filter 26 having a disk-shaped activated carbon or the like is arranged in the filter chamber 24.
  • the ozone removing filter 26 corresponds to the filter of the present invention.
  • the bottom wall of the filter chamber 24 is provided with an air inlet 27 for putting the ozone-containing air in the cleaning tub 10 at the center.
  • the air inlet 27 has a cylindrical shape and protrudes downward from the outer surface facing the bottom wall in the washing tub 10.
  • an air outlet 28 for discharging air from which ozone has been removed by the ozone removal filter 26 to the outside is provided at the center of the top wall of the filter chamber 24.
  • An operation part 120 is provided on the front side of the support frame 30.
  • the operation unit 120 is provided with a power button 121 and a start button 122.
  • the power button 121 is an operation button for turning on and off the power of the crop cleaning machine 1.
  • the start button 122 is an operation button for starting and suspending the washing operation.
  • FIG. 5 is a plan view of the crop cleaning machine 1 with the cover 20 omitted, showing a state in which the crop cleaning operation is in progress.
  • the user opens the cover 20 and puts the cleaned crops into the cleaning bucket 10.
  • the user stores water in the washing tub 10 to the position of the water level line 17 and closes the lid 20.
  • the user presses the power button 121 to turn on the power of the crop cleaning machine 1, and then presses the start button 122.
  • the cleaning operation starts, and the pump 40 and the ozone generator 50 are operated.
  • the water in the washing tub 10 is sucked into the pump 40 through the suction port 13 and the suction pipe 49, and the water discharged from the pump 40 is sent to the bubble water generator 60 through the first water supply pipe 47 At the same time, it is sent to the dispersion pipe 91 through the second water delivery pipe 48.
  • the water sent from the pump 40 flows from the water inlet 67 into the housing 61 in a tangential direction toward the peripheral wall of the housing 61, and passes through while turning.
  • the inside of the outer cylindrical wall 64 and the inside of the inner cylindrical wall 65 go to the injection port 15.
  • the central axis portion of the housing 61 becomes a negative pressure, and a suction force for sucking in air from the suction port 66 is generated.
  • air is taken into the ozone generator 50 to generate ozone.
  • the air containing ozone is sent to the bubble water generator 60 through the inlet 54 and from the suction port 66 Release into the housing 61.
  • the air containing ozone and the water swirling around the central axis of the casing 61 as the air column flow to the jet port 15. Near the exit of the jet port 15, it is broken by collision with still water and becomes micron or nanometer. Class of small bubbles. Then, the bubbly water formed by mixing small bubbles containing ozone in the water is sprayed into the washing tub 10 from the spray port 15 by the water delivery pressure of the pump 40.
  • the jet port 15 jets bubble water in an obliquely upward direction that intersects the radial direction from the central axis P when the washing tub 10 is viewed from above.
  • the bubbly water follows the inclined surface 14b, and therefore tends to face diagonally upward.
  • the swirling water flow is generated in the washing tub 10 by the water potential of the jetted bubble water. The swirling water flow rises from the bottom side of the washing tub 10 toward the water surface side.
  • the water sent from the pump 40 to the water-spray pipe 91 rises in the water-spray pipe 91 to reach three nozzles 93 and is scattered from each nozzle 93.
  • the crop to be cleaned is a crop that does not easily float in the water and is difficult to emerge from the water surface, compared to the small bubbles generated from the bottom side of the cleaning bucket 10, the crop will rotate up and down, etc., so it is easy to make the small bubbles without dead spots. Contact with crops is not easy to produce uneven cleaning.
  • the ozone contained in the bubbles dissolves in the water in the washing tub 10 to become ozone water, and the ozone water contacts the crops.
  • the oxidizing power of ozone acts on crops, and pesticides remaining in crops are decomposed and removed.
  • crops are sterilized by ozone.
  • the ozone water in the washing tub 10 is sucked into the pump 40 and sent to the bubble water generator 60.
  • the ozone water is further mixed with air containing ozone. Therefore, by circulating ozone water in this way, the concentration of ozone in the water increases, and therefore the effect of removing pesticides and sterilizing is improved.
  • ozone water which is water
  • ozone water is sprayed from the three nozzles 93 of the spray pipe 91 to the water surface of the crop. Therefore, the exposed part of the crop is washed by the impact of the scattered water. In addition, the exposed part of pesticides is removed and sterilized by the action of ozone.
  • the ozone that is not dissolved in the water in the cleaning tank 10 is mixed into the air in the cleaning tank 10. A part of the air mixed with ozone passes through the air inlet 27 and flows to the filter chamber 24. After the ozone is removed by the ozone removing filter 26, it is discharged to the outside through the air outlet 28.
  • the air inlet 27 of the filter chamber 24 is easily exposed to water splashes generated during cleaning, for example, water splashes generated when the water spread from the nozzle 93 hits crops and rebounds.
  • the air inlet 27 has a structure that protrudes downward from the cover 20 facing the inside of the washing tub 10, and the path from the opening portion thereof to the filter chamber 24 becomes longer. Therefore, even if water enters the air inlet 27, it is not easy to reach the filter chamber 24. Therefore, the ozone removing filter 26 is not easily wetted by water. In addition, even if water splash hits the surface around the air inlet 27 in the cover 20 and flows along the surface to the air inlet 27 side, the water hardly enters the air inlet 27.
  • the cleaning operation ends when, for example, a predetermined operation time, for example, 20 minutes, has passed.
  • a predetermined operation time for example, 20 minutes
  • the ozone generator 50 is stopped before a predetermined time, for example, one minute before the end of the cleaning operation.
  • a predetermined time for example, one minute before the end of the cleaning operation.
  • the operating time can be set to allow the user to select from multiple times.
  • the operation unit 120 is provided with a selection button for selecting the operating time.
  • the user opens the cover 20 and takes out the washed crops from the washing bucket 10. Then, the user opens the external drain rotary valve 110 to drain water from the washing tub 10. As shown by the dotted arrow in FIG. 1, the water in the washing tub 10 passes through the drain port 12, the drain pipe 100 and the external drain rotary valve 110 to be discharged. At this time, the water stored in the spray recess 14 passes through the communication groove 16 to reach the drain port 12. When the draining is finished, the user closes the external drain rotary valve 110 and closes the cover 20.
  • the water enters the housing 61 of the bubble water generator 60 from the spray port 15. Furthermore, the water that has entered the housing 61 enters the second introduction pipe 53 that is the introduction path 54 from the suction port 66. At this time, a part of the introduction path 54 is raised above the water level in the washing tub 10 at the position of the ventilation pipe 92. Therefore, the entering water can only reach a position equal to the water level in the washing tub 10 in the ventilation pipe 92. Therefore, even if the ozone generator 50 is arranged in the machine room 31 located at a position lower than the water level when the water is stored in the washing tub 10, water can be prevented from entering the inside of the ozone generator 50.
  • the bottom surface of the drain recess 11 is an inclined surface 11 a that slopes downward toward the drain port 12, and a suction port 13 for sucking water supplied to the pump 40 is provided so as to protrude from the inclined surface 11 a. Therefore, the dirt that has entered is likely to flow to the drain port 12 along the inclined surface 11a and is not easy to accumulate on the inclined surface 11a. Furthermore, even if dirt accumulates on the inclined surface 11a, it is difficult for the dirt to reach the opening position of the suction port 13, and it is unlikely that the accumulated dirt is sucked by the pump 40 from the suction port 13 together with water.
  • the vortex water flow can be generated in the washing tub 10 by spraying bubble water from the jet port 15. Therefore, the crops in the washing tub 10 can easily rotate up and down or alternate up and down, and it is easy to make small bubbles contained in the bubble water have no dead spots. Land contact with crops. As a result, uneven cleaning of crops caused by the action of small bubbles can be suppressed.
  • the ozone dissolves in the water in the washing tub 10 to generate ozone water, and the ozone water comes into contact with crops. Thereby, the pesticide remaining on the crop can be removed by the oxidizing power of ozone, and the crop can be sterilized by the ozone.
  • the bottom surface of the drain recess 11 that is a part of the inner bottom surface 10b of the washing tub 10 is formed as an inclined surface 11a that slopes downward toward the drain port 12, and the suction port 13 for sucking the water supplied to the pump 40 It is provided so as to protrude upward from the inclined surface 11a.
  • the dirt such as fine mud removed from the crop, easily flows to the drain port 12 along the inclined surface 11a, and is not easy to accumulate on the inclined surface 11a.
  • even if dirt accumulates on the inclined surface 11a it is difficult for the dirt to reach the opening position of the suction port 13, and the accumulated dirt is not easily sucked by the pump 40 from the suction port 13 together with water.
  • ozone is used to introduce ozone from the ozone generator 50 into the introduction path of the bubble water generator 60
  • a part of 54 is raised above the water level in the washing tub 10 at the position of the ventilation pipe 92. Therefore, even if the water stored in the washing tub 10 passes through the bubble water generator 60 and enters the introduction path 54, the entering water can only reach a position equal to the water level in the washing tub 10 in the ventilation pipe 92. Therefore, water can be prevented from entering the inside of the ozone generator 50.
  • the air inlet 27 of the filter chamber 24 has a structure that protrudes downward from the surface of the cover 20 facing the inside of the washing tub 10, the path from the opening to the filter chamber 24 becomes longer. Therefore, even if water enters the air inlet 27 during the cleaning operation, it does not easily reach the filter chamber 24, and the ozone removing filter 26 is not easily wetted by water.
  • the injection recess 14 including the injection surface 14 a having the injection port 15 is formed on the inner bottom surface 10 b of the washing tub 10.
  • any structure in which the spray port 15 is provided at the bottom of the washing tub 10 may be sufficient.
  • the spray recess may be formed in the vicinity of the inner bottom surface 10 b in the inner peripheral surface 10 c of the washing tub 10.
  • the crop cleaning machine 1 adopts a structure in which the water supply and drainage to the cleaning bucket 10 are manually performed by the user.
  • the crop cleaning machine 1 may also adopt a configuration in which a water supply valve and a drain valve that are opened and closed by the control of the control unit 70 are provided, thereby automatically performing water supply and drainage to the washing tub 10.
  • the lid 20 has a structure in which the opening 10a is opened and closed by being detached from the washing tub 10.
  • the lid 20 may be connected to the washing tub 10 by a hinge, and the opening 10a may be opened and closed by turning the hinge as a fulcrum.
  • the bubble water generator 60 adopts a structure that generates bubble water by a two-phase flow rotation method.
  • the bubbling water generator 60 takes in the water protruding from the pump 40 and the air containing the ozone generated by the ozone generator 50 to generate bubbling water, and spray the bubbling water from the spray port 15 to the inside of the washing tub 10
  • the structure can also be used in other ways.
  • the washing tub 10 has a structure supported by the support frame 30.
  • the washing tub 10 is arranged inside the box. In this case, the space below the washing tub 10 in the box becomes a machine room.

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  • Food Science & Technology (AREA)
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  • Polymers & Plastics (AREA)
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  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
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Abstract

一种作物清洗机，其能提高清洗性能的同时进行农药的去除、除菌。作物清洗机(1)具备：圆筒状的清洗桶(10)，收容作物；泵(40)，吸入并吐出蓄于清洗桶(10)内的水；臭氧发生器(50)，生成含有臭氧的空气；以及气泡水发生器(60)，摄入从泵(40)吐出的水和含有由臭氧发生器(50)生成的臭氧的空气，将含有臭氧的小气泡混合于水中而成的气泡水从该气泡水发生器(60)的喷射口(15)喷射向清洗桶(10)的内部。其中，喷射口(15)设置于清洗桶(10)的底部的从清洗桶(10)的中心轴(P)偏离的位置，向斜上方向喷射气泡水，该斜上方向与在俯视清洗桶(10)时从该中心轴(P)出发的半径方向交叉。

Description

作物清洗机 技术领域
本发明涉及一种清洗蔬菜、水果等作物的作物清洗机。
背景技术
专利文献1中记载了一种蔬菜清洗机，其在蓄有水的清洗容器内收容蔬菜、水果，并从配设于清洗容器的内侧下方的气泡发生装置放出许多气泡，通过气泡破裂、湮灭时产生的振动来清洗蔬菜、水果。
在该蔬菜清洗机中，气泡发生装置配设于从清洗容器的中央偏心的位置，气泡的产生会引起不平衡，由此在清洗容器内产生水流。能通过该水流来发挥清洗蔬菜、水果的效果。
叶菜类蔬菜、苹果等比重比水小的作物容易浮在蓄于清洗容器内的水中。上述蔬菜清洗机中，虽然通过气泡发生的不平衡而产生了水流，但该水流难以发挥使作物主动进行上下旋转或上下交替运动的强机械力。因此，在清洗这样的作物时，露出水面的部分变得难以清洗，可能容易产生清洗不均。
此外，理想的是在清洗作物时同时去除残留于作物的农药或进行除菌。但是，像上述的蔬菜清洗机那样只凭借气泡和水流的作用的话，难以实现这样的农药去除、除菌。
现有技术文献
专利文献
专利文献1：日本特开昭56－106581号公报
发明内容
发明所要解决的问题
本发明是鉴于该问题而完成的，其目的在于提供一种能提高清洗性能的同 时进行农药的去除、除菌的作物清洗机。
用于解决问题的方案
本发明的主要方案的作物清洗机具备：圆筒状的清洗桶，收容作物；泵，吸入并吐出蓄于所述清洗桶内的水；臭氧生成部，生成含有臭氧的空气；以及气泡水发生部，摄入从所述泵吐出的水和含有由所述臭氧生成部生成的臭氧的空气，将含有臭氧的小气泡混合于水中而成的气泡水从所述气泡水发生部的喷射口喷射向所述清洗桶的内部。其中，所述喷射口设置于与所述清洗桶的底部的从所述清洗桶的中心轴偏离的位置，向斜上方向喷射所述气泡水，该斜上方向与在俯视所述清洗桶时从所述中心轴出发的半径方向交叉。
根据上述结构，由于能通过从喷射口喷射气泡水来使清洗桶内产生涡旋水流，因而清洗桶内的作物容易上下旋转或上下交替，容易使气泡水中所含的小气泡无死角地接触作物。由此，能抑制因小气泡的作用而引起的作物的清洗不均。因此，能提高清洗性能。
而且，由于气泡水中含有臭氧，因此，臭氧溶于清洗桶内的水中而生成臭氧水，该臭氧水与作物接触。由此，能通过臭氧的氧化力来去除残留于作物的农药，并且能通过臭氧来对作物进行除菌。
本方案的作物清洗机中，可以采用如下结构：还具备散水部，所述散水部包括位于所述清洗桶的上部的喷嘴，将从所述泵吐出的水从所述喷嘴散布向所述清洗桶内。
根据上述结构，即使作物局部露出水面，也能通过散布的水来清洗该露出部分。因此，能进一步抑制作物的清洗不均。
本方案的作物清洗机中，可以采用如下结构：在所述清洗桶的内底面设有用于排出所述清洗桶内的水的排水口和吸入向所述泵供给的水的吸入口，所述内底面具有朝向所述排水口下倾的倾斜面，所述吸入口从所述倾斜面向上方突出。
根据上述结构，从作物中去除的细泥等污垢容易沿倾斜面流向排水口而不容易堆积于倾斜面。而且，即使在倾斜面堆积有污垢，污垢也难以到达吸入口的开口位置，不容易发生堆积的污垢与水一起被泵从吸入口吸入的情况。
本方案的作物清洗机中，可以采用如下结构：还具备导入路，所述导入路将含有臭氧的空气从所述臭氧生成部导向所述气泡水发生部。这种情况下，进一步地，可以采用如下结构：所述臭氧生成部配置在比所述清洗桶内蓄有水时的水位低的位置，所述导入路的一部分被抬高至所述水位的上方。
根据上述结构，即使蓄于清洗桶的水穿过气泡水发生部而进入导入路，也能防止进入的水进入到臭氧生成部的内部。
本方案的作物清洗机中，可以采用如下结构：所述清洗桶在顶面具有开口部，所述开口部由盖以可开闭的方式堵住。这种情况下，进一步地，可以采用如下结构：在所述盖设有收容去除臭氧的过滤器的过滤器室，在所述过滤器室设有用于放入所述清洗桶内的含有臭氧的空气的空气入口和用于向外部放出由所述过滤器去除了臭氧的空气的空气出口，所述空气入口从所述盖中面向所述清洗桶内的面向下方突出。
根据上述结构，能将清洗桶内的含有臭氧的空气在去除臭氧之后向外部排出。而且，由于空气入口从开口部分到过滤器室的路径变长，因此，在清洗作物时，即使水进入空气入口，也不容易到达过滤器室，过滤器不容易被水弄湿。
发明效果
根据本发明，能提供一种能提高清洗性能的同时进行农药的去除、除菌的作物清洗机。
本发明效果乃至意义通过以下所示的实施方式的说明会更加明确。但是，以下的实施方式只不过是将本发明实施化时的一个示例，本发明不受以下的实施方式所述的任何限制。
附图说明
图1是实施方式的沿中央位置剖开的作物清洗机的正面剖视图。
图2是实施方式的沿气泡水发生器的位置剖开的作物清洗机的侧面剖视图。
图3是实施方式的卸下了盖和过滤器的状态的作物清洗机的俯视图。
图4是表示将实施方式的作物清洗机的主要部分的结构局部剖视的图。
图5是表示实施方式的正在进行作物的清洗运转的状态的、省略了盖的作物清洗机的俯视图。
附图标记说明
10：清洗桶；10a：开口部；10b：内底面；11a：倾斜面；12：排水口；13：吸入口；15：喷射口；20：盖；24：过滤器室；26：臭氧去除过滤器(过滤器)；27：空气入口；28：空气出口；50：臭氧发生器(臭氧生成部)；54：导入路；60：气泡水发生器(气泡水生成部)；91：散水管(散水部)；93：喷嘴。
具体实施方式
以下，参照附图，对本发明的实施方式进行说明。
图1是沿中央位置剖开的作物清洗机1的正面剖视图。图2是沿气泡水发生器60的位置剖开的作物清洗机1的侧面剖视图。图3是卸下了盖20和过滤器80的状态的作物清洗机1的俯视图。图4是表示将作物清洗机1的主要部分局部剖视的图。需要说明的是，在图1、图2以及图4中，清洗桶10内蓄有水时的水位用单点划线表示，水和空气的流动用箭头适当地示出。
作物清洗机1具备收容并清洗水果、蔬菜等作物的清洗桶10。清洗桶10具有有底的圆筒状，顶面开口。顶面的开口部10a由盖20以自由开闭的方式覆盖。清洗桶10由具有有底的圆筒状的支承框架30支承。形成于清洗桶10的下方的支承框架30的内部空间构成机械室31。清洗桶10、盖20以及支承框架30由例如树脂材料形成。
在机械室31配置有泵40、臭氧发生器50以及气泡水发生器60。泵40吸入并吐出蓄在清洗桶10的水。臭氧发生器50生成含有臭氧的空气。气泡水发生器60摄入从泵40吐出的水和含有由臭氧发生器50生成的臭氧的空气，通过二相流旋转方式来产生含有臭氧的小气泡混合于水中而成的气泡水，并将该气泡水从喷射口15喷射向清洗桶10的内部。此外，在机械室31配置有用于控制泵40和臭氧发生器50的工作的控制部70。需要说明的是，臭氧发生器50相当于本发明的臭氧生成部，气泡水发生器60相当于本发明的气泡水发生部。
在清洗桶10的内底面10b的中央形成有排水凹部11。排水凹部11为了避 开泵40的扇叶43而具有局部缺失的圆形。排水凹部11的底面被设为从左侧向右侧下倾的倾斜面11a，在倾斜面11a的最低的部位形成有排水孔11b。在排水孔11b的底面设有用于排出清洗桶10内的水的排水口12。排水凹部11的倾斜面11a朝向排水口12下倾。
在排水凹部11设有吸入向泵40供给的水的吸入口13。吸入口13具有圆筒状并从倾斜面11a向上方突出，由此其开口位置高于倾斜面11a的位置。而且，吸入口13的突出高度被设为大于排水凹部11的深度。
在清洗桶10的外底面形成有与排水口12相连的圆筒状的连接口12a和与吸入口13相连的圆筒状的连接口13a。
排水凹部11被过滤器80覆盖。过滤器80由例如金属材料形成，具有与排水凹部11的平面形状对应的平面形状。过滤器80的中央部向上方膨出而构成把手81。吸入口13的顶端部进入形成于把手81的背侧的空间。在过滤器80，在把手81的周围形成有许多通水孔82，在把手81的上表面形成有多个用于清除滞留在把手81的背侧的空间中的空气的通气孔83。出自作物的叶屑等异物被过滤器80卡住从而不容易进入排水凹部11内。
在清洗桶10的内底面10b于排水凹部11的右侧形成有长方形的喷射凹部14。喷射凹部14具有朝向斜前上方的喷射面14a和设置于喷射面14a的前方并与喷射面14a正交的倾斜面14b。在喷射面14a的中央形成有圆形的喷射口15。喷射口15的位置是从清洗桶10的中心轴P偏离的位置。而且，喷射口15的位置是从清洗桶10的中心轴P出发的半径方向上的、比中心轴P靠近清洗桶10的内周面10c的位置。倾斜面14b在喷射面14a的跟前中断，该部分为水平的底面14c。底面14c通过连通槽16与排水凹部11的排水孔11b相连。
需要说明的是，底面14c和连通槽16可以向排水孔11b侧平缓地倾斜。而且，清洗桶10的内底面10b中除排水凹部11和喷射凹部14以外的区域朝向排水凹部11平缓地倾斜即可。
在清洗桶10的内周面10c设有管单元90。管单元90是以沿清洗桶10的周向排列的方式一体地形成用于向清洗桶10内散布水的散水管91和供含有臭氧的空气流动的通风管92而成的构件。管单元90由例如树脂材料形成。
在管单元90的正面于规定的高度位置形成有沿周向延伸的水位线17。水位线17成为用户手动地向清洗桶10内蓄水时的水位的基准。
散水管91是在清洗桶10的径向上呈扁平的倒L字的方形管。在散水管91的上端部，以沿清洗桶10的周向排列的方式设有三个喷嘴93。各个喷嘴93具有圆筒状，向清洗桶10的内侧突出。在散水管91的下端部形成有圆筒状的流入口94。流入口94中，顶端部侧比基端部侧细，在基端部侧装配有环状的密封垫95。需要说明的是，散水管91相当于本发明的散水部。
通风管92是从位于清洗桶10的底部侧的一端部向上方延伸后在清洗桶10的开口部10a的附近折回并向下方延伸至位于清洗桶10的底部侧的另一端部的、在清洗桶10的径向上呈扁平的方形管。通风管92的折回位置比水位线17即蓄于清洗桶10内的水的水位高。在通风管92的一端部形成有圆筒状的空气入口96，在通风管92的另一端部形成有圆筒状的空气出口97。空气入口96和空气出口97中，顶端部侧比基端部侧细，在基端部侧装配有环状的密封垫98、99。
管单元90的下端部与设置于清洗桶10的内底面10b的连接部18连接。连接部18包括供管单元90的下端部嵌入的嵌入凹部18a。在嵌入凹部18a的底面形成有分别供流入口94、空气入口96以及空气出口97通过的贯通孔19a、19b、19c。通过各个贯通孔19a、19b、19c的流入口94、空气入口96以及空气出口97的顶端部侧向清洗桶10的下方突出。而且，流入口94、空气入口96以及空气出口97的基端部侧与各个贯通孔19a、19b、19c之间被密封垫95、98、99水封。
管单元90的左右的侧面90a形成为倾斜面。由此，能抑制清洗工程中通过水流来移动的作物与管单元90的侧面90a碰撞，导致损伤或停滞。
气泡水发生器60具备有底的圆筒状的壳体61。具有喷射面14a的清洗桶10的壁部兼作气泡水发生器60的前表面板62，在前表面板62的背面装接有壳体61。在壳体61与前表面板62之间设有水封用的密封垫63。
在壳体61的底壁的内表面形成有与壳体61同轴的外侧圆筒壁64。此外，在前表面板62的背面，以与外侧圆筒壁64的内侧重叠的方式形成有与壳体61和外侧圆筒壁64同轴的内侧圆筒壁65。
在壳体61的底壁于壳体61的中心轴上形成有吸气口66，在底壁的外表面形成有与吸气口66相连的圆筒状的连接口66a。在壳体61的周壁于底壁的附近形成有向周壁的切线方向开口的进水口67，在周壁的外表面形成有与进水口67相连并向周壁的切线方向突出的圆筒状的连接口67a。
形成于喷射面14a的喷射口15位于壳体61的中心轴上，成为气泡水发生器60的喷射口。
泵40包括泵壳41、电机42以及扇叶43。在泵壳41的内部设有未图示的叶轮。此外，在泵壳41设有圆筒状的第一吐出口44、从第一吐出口44分支的圆筒状的第二吐出口45以及圆筒状的吸入口46。电机42对叶轮进行旋转驱动。当叶轮旋转时，从吸入口46吸水并从第一吐出口44和第二吐出口45吐水。扇叶43通过电机42与叶轮一起被旋转驱动，将电机42冷却。
在第一吐出口44连接有第一送水管47的一端。第一送水管47的另一端与气泡水发生器60的进水口67的连接口67a连接。第二吐出口45与第二送水管48的一端连接。第二送水管48的另一端与散水管91的流入口94连接。在吸入口46连接有吸入管49的一端。吸入管49的另一端与清洗桶10的吸入口13的连接口13a连接。
臭氧发生器50内置有例如一对电极，摄入机械室31内的空气，通过一对电极产生电晕放电等放电，由空气中含有的氧生成臭氧。含有生成的臭氧的空气从臭氧发生器50的排出口51排出。在排出口51连接有第一导入管52的一端。第一导入管52的另一端与通风管92的空气入口96连接。在通风管92的空气出口97连接有第二导入管53的一端。第二导入管53的另一端与气泡水发生器60的吸气口66的连接口66a连接。
由第一导入管52、通风管92以及第二导入管53构成将含有臭氧的空气从臭氧发生器50导向气泡水发生器60的导入路54。导入路54的一部分在通风管92的部位被抬高至比清洗桶10的水位线17的位置即蓄于清洗桶10内的水的水位靠上方。
在清洗桶10的排水口12的连接口12a连接有排水管100的一端。排水管100贯通支承框架30并向外部延伸出。在排水管100的另一端连接有外部排水 旋阀110。外部排水旋阀110通过由操作杆111实施的开闭操作进行开闭。在外部排水旋阀110的排出口112能连接未图示的排水软管。
盖20包括圆盘状的顶板部21和形成于顶板部21的背面的圆筒状的躯体部22。顶板部21的直径被设为与清洗桶10的外径大致相同。躯体部22的外径被设为与清洗桶10的内径大致相同。在躯体部22的外周面设有环状的密封垫23。当清洗桶10的开口部10a被盖20关闭时，躯体部22嵌入清洗桶10的内侧。密封垫23与清洗桶10的内周面10c接触，防止水和空气从盖20的躯体部22与清洗桶10的内周面10c之间漏出。
在盖20的顶板部21于中央部设有中空圆盘状的过滤器室24。过滤器室24由形成于顶板部21的凹部21a和从上方覆盖凹部21a的罩25构成。在过滤器室24配置有具有圆盘状的活性炭等的臭氧去除过滤器26。臭氧去除过滤器26相当于本发明的过滤器。
在过滤器室24的底壁于中央部设有用于放入清洗桶10内的含有臭氧的空气的空气入口27。空气入口27具有圆筒状，从面向清洗桶10内的底壁的外表面向下方突出。此外，在过滤器室24的顶壁于中央部设有用于向外部放出由臭氧去除过滤器26去除了臭氧的空气的空气出口28。
在支承框架30的前侧设有操作部120。在操作部120设有电源按钮121和开始按钮122。电源按钮121是用于进行接通和断开作物清洗机1的电源的操作按钮。开始按钮122是用于开始和暂停清洗运转的操作按钮。
接着，对由作物清洗机1实施的作物的清洗运转进行说明。
图5是表示正在进行作物的清洗运转的状态的、省略了盖20的作物清洗机1的俯视图。
用户打开盖20，将被清洗的作物投入清洗桶10内。接着，用户向清洗桶10内蓄水至水位线17的位置并关闭盖20。然后，用户按下电源按钮121对作物清洗机1接通电源，再按下开始按钮122。由此，清洗运转开始，泵40和臭氧发生器50工作。
如图1的实线箭头所示，清洗桶10内的水通过吸入口13和吸入管49被吸入泵40，从泵40吐出的水通过第一送水管47被送至气泡水发生器60的同时通 过第二送水管48被送至散水管91。
图2的实线箭头所示，气泡水发生器60中，从泵40送来的水以朝向壳体61的周壁的切线方向的方式从进水口67流入壳体61内，一边回旋一边穿过外侧圆筒壁64的内部和内侧圆筒壁65的内部前往喷射口15。这时，壳体61的中心轴部分变为负压，产生从吸气口66吸入空气的吸力。通过该吸力，空气被摄入臭氧发生器50而生成臭氧，如图4和图2的虚线箭头所示，含有臭氧的空气通过导入路54被送向气泡水发生器60，从吸气口66向壳体61内放出。含有臭氧的空气与以壳体61的中心轴部分为气柱进行回旋的水一起流向喷射口15，在喷射口15的出口附近，通过与静止的水的碰撞而破碎，变成微米级或纳米级的小气泡。然后，含有臭氧的小气泡混合于水中而成的气泡水通过泵40的送水压力而从喷射口15喷射向清洗桶10的内部。
如图2和图5的粗线箭头所示，喷射口15向斜上方向喷射气泡水，该斜上方向与在俯视清洗桶10时从中心轴P出发的半径方向交叉。这时，气泡水沿着倾斜面14b，因而容易朝向斜上方。如图5的实线箭头所示，清洗桶10内通过喷射出的气泡水的水势而产生涡旋水流。涡旋水流从清洗桶10的底部侧向水面侧上升。
如图1的实线箭头所示，从泵40送至散水管91的水在散水管91内上升而到达三个喷嘴93，从各个喷嘴93散布。
在清洗桶10内，放出到水中的小气泡与作物接触，通过气泡破裂或者湮灭时产生的振动能量，附着于作物的灰尘、泥等污垢被去除，作物被清洗。这时，清洗桶10内的作物通过涡旋水流的力以上下旋转或上下交替的方式运动。因此，即使被清洗的作物是叶菜类蔬菜、苹果等浮于水中的作物，也能使小气泡无死角地接触作物，因此不容易发生清洗不均。而且，即使被清洗的作物是不容易浮于水中而难以露出水面的作物，相对于从清洗桶10的底部侧产生小气泡而言，作物也会上下旋转等，因此容易使小气泡无死角地接触作物，不容易产生清洗不均。
进而，气泡中所含的臭氧溶于清洗桶10内的水而变成臭氧水，臭氧水与作物接触。臭氧的氧化力作用于作物，残留于作物的农药被分解并去除。而且， 作物通过臭氧而被除菌。
清洗桶10内的臭氧水被吸入泵40并送向气泡水发生器60，该臭氧水中进一步混合有含有臭氧的空气。因此，通过使臭氧水这样循环，水中的臭氧的浓度升高，因此去除农药、除菌的效果提高。
进而，从散水管91的三个喷嘴93向作物的露出水面的部分散布水即臭氧水。因此，作物的露出部分通过散布的水的冲击力被清洗。此外，通过臭氧的作用来进行露出部分的农药去除、除菌。
未溶于清洗桶10内的水中的臭氧混入清洗桶10内的空气中。混入有臭氧的空气的一部分穿过空气入口27而流向过滤器室24，通过臭氧去除过滤器26去除臭氧之后，穿过空气出口28排出到外部。
过滤器室24的空气入口27容易暴露于清洗时产生的水花、例如由于从喷嘴93散布的水碰到作物并反弹而产生的水花。空气入口27具有从盖20中面向清洗桶10内的面向下方突出的结构，从其开口部分到过滤器室24的路径变长。因此，即使水进入空气入口27也不容易到达过滤器室24。因此，臭氧去除过滤器26不容易被水弄湿。此外，即使水花碰到盖20中空气入口27的周围的面并沿该面流向空气入口27侧，该水也难以进入空气入口27。
清洗运转例如在经过了预定的运转时间、例如20分钟时结束。这时，臭氧发生器50在清洗运转结束的规定时间之前、例如1分钟前停止。由此，能在结束之前的剩余的时间内进行臭氧的分解，因此，能在运转结束时尽量不在清洗桶10内产生残留臭氧。
需要说明的是，运转时间可以设为用户能从多个时间中选择。这种情况下，在操作部120设有用于选择运转时间的选择按钮。
当清洗运转结束时，用户打开盖20，从清洗桶10内取出清洗好的作物。然后，用户打开外部排水旋阀110，从清洗桶10内进行排水。如图1的虚线箭头所示，清洗桶10内的水穿过排水口12、排水管100以及外部排水旋阀110而被排出。这时，蓄于喷射凹部14的水穿过连通槽16而到达排水口12。当排水结束时，用户关闭外部排水旋阀110，关闭盖20。
那么，在进行洗涤运转之前，当向清洗桶10内蓄水至水位线17所示的水 位时，水从喷射口15进入气泡水发生器60的壳体61内。进而，进入壳体61内的水从吸气口66进入第二导入管53即导入路54。这时，导入路54的一部分在通风管92的部位被抬高至清洗桶10内的水位的上方。因此，进入的水在通风管92内只能到达与清洗桶10内的水位等高的位置。因此，即使臭氧发生器50配置在位于比清洗桶10内蓄有水时的水位低的位置的机械室31，也能防止水进入该臭氧发生器50的内部。
此外，清洗运转中从作物中去除的细泥等污垢能穿过过滤器80的通水孔82进入排水凹部11内。排水凹部11中，其底面被设为朝向排水口12下倾的倾斜面11a，进而，以从该倾斜面11a突出的方式设有用于吸入向泵40供给的水的吸入口13。因此，进入的污垢容易沿倾斜面11a流向排水口12而不容易堆积于倾斜面11a。而且，即使在倾斜面11a堆积有污垢，污垢也难以到达吸入口13的开口位置，不容易发生堆积的污垢与水一起被泵40从吸入口13吸入的情况。
＜实施方式的效果＞
根据本实施方式，能通过从喷射口15喷射气泡水来使清洗桶10内产生涡旋水流，因而清洗桶10内的作物容易上下旋转或上下交替，容易使气泡水中所含的小气泡无死角地接触作物。由此，能抑制因小气泡的作用而引起的作物的清洗不均。
而且，由于气泡水中含有臭氧，因此臭氧溶于清洗桶10内的水中而生成臭氧水，该臭氧水与作物接触。由此，能通过臭氧的氧化力来去除残留于作物的农药，而且能通过臭氧来对作物进行除菌。
此外，根据本实施方式，由于从散水管91散布水，因此即使作物的一部分露出水面，也能通过散布的水来清洗该露出部分。因此，能进一步抑制作物的清洗不均。
进而，根据本实施方式，作为清洗桶10的内底面10b的一部分的排水凹部11的底面被设为朝向排水口12下倾的倾斜面11a，用于吸入向泵40供给的水的吸入口13以从倾斜面11a向上方突出的方式设置。由此，从作物中去除的细泥等污垢容易沿倾斜面11a流向排水口12而不容易堆积于倾斜面11a。而且，即使在倾斜面11a堆积有污垢，污垢也难以到达吸入口13的开口位置，不容易 发生堆积的污垢与水一起被泵40从吸入口13吸入的情况。
进而，本实施方式中，相对于臭氧发生器50配置在低于清洗桶10内蓄有水时的水位的位置的情况，用于将臭氧从臭氧发生器50导入气泡水发生器60的导入路54的一部分在通风管92的部位被抬高至清洗桶10内的水位的上方。由此，即使蓄于清洗桶10的水穿过气泡水发生器60而进入导入路54，进入的水在通风管92内也只能到达与清洗桶10内的水位等高的位置。因此，能防止水进入臭氧发生器50的内部。
进而，本实施方式中，由于过滤器室24的空气入口27采用从盖20中面向清洗桶10内的面向下方突出的结构，因此，从开口部分到过滤器室24的路径变长。由此，即使在清洗运转时水进入空气入口27，也不容易到达过滤器室24，臭氧去除过滤器26不容易被水弄湿。
以上，对本发明的实施方式进行了说明，但是本发明不受上述实施方式等的任何限制，此外，本发明的实施方式也可以进行上述以外的各种变形。
例如，上述实施方式中，包括具有喷射口15的喷射面14a的喷射凹部14形成于清洗桶10的内底面10b。但是，只要是喷射口15设置于清洗桶10的底部的结构即可，例如，喷射凹部也可以形成于清洗桶10的内周面10c中内底面10b的附近。
此外，上述实施方式中，作物清洗机1采用对清洗桶10的供水和排水由用户手动进行的结构。但是，作物清洗机1也可以采用如下结构：具备通过控制部70的控制来开闭的供水阀和排水阀，由此自动进行对清洗桶10的供水和排水。
进而，上述实施方式中，盖20采用通过向清洗桶10拆装来对开口部10a进行开闭的结构。但是，盖20也可以采用通过铰链来与清洗桶10连结并通过以铰链作为支点进行转动来对开口部10a进行开闭的结构。
进而，上述实施方式中，气泡水发生器60采用通过二相流旋转方式来产生气泡水的结构。但是，只要气泡水发生器60是摄入从泵40突出的水和含有由臭氧发生器50生成的臭氧的空气并产生气泡水，并将该气泡水从喷射口15喷射向清洗桶10的内部的结构，也可以采用其他的方式。
进而，上述实施方式中，清洗桶10采用由支承框架30支承的结构。但是，也可以采用清洗桶10配置于箱体的内部的结构。这种情况下，箱体内的清洗桶10的下方的空间成为机械室。
除此之外，本发明的实施方式可以在技术方案所示的技术思想的范围内适当地进行各种变形。

Claims (5)

  1. 一种作物清洗机，其特征在于，具备：
    圆筒状的清洗桶，收容作物；
    泵，吸入并吐出蓄于所述清洗桶内的水；
    臭氧生成部，生成含有臭氧的空气；以及
    气泡水发生部，摄入从所述泵吐出的水和含有由所述臭氧生成部生成的臭氧的空气，将含有臭氧的小气泡混合于水中而成的气泡水从所述气泡水发生部的喷射口喷射向所述清洗桶的内部，
    所述喷射口设置于所述清洗桶的底部的从所述清洗桶的中心轴偏离的位置，向斜上方向喷射所述气泡水，该斜上方向与在俯视所述清洗桶时从所述中心轴出发的半径方向交叉。
  2. 根据权利要求1所述的作物清洗机，其特征在于，
    还具备散水部，所述散水部包括位于所述清洗桶的上部的喷嘴，将从所述泵吐出的水从所述喷嘴散布向所述清洗桶内。
  3. 根据权利要求1或2所述的作物清洗机，其特征在于，
    在所述清洗桶的内底面设有用于排出所述清洗桶内的水的排水口和吸入向所述泵供给的水的吸入口，
    所述内底面具有朝向所述排水口下倾的倾斜面，
    所述吸入口从所述倾斜面向上方突出。
  4. 根据权利要求1至3中任一项所述的作物清洗机，其特征在于，
    还具备导入路，所述导入路将含有臭氧的空气从所述臭氧生成部导向所述气泡水发生部，
    所述臭氧生成部配置在比所述清洗桶内蓄有水时的水位低的位置，
    所述导入路的一部分被抬高至所述水位的上方。
  5. 根据权利要求1至4中任一项所述的作物清洗机，其特征在于，
    所述清洗桶在顶面具有开口部，
    所述开口部由盖以可开闭的方式堵住，
    在所述盖设有收容去除臭氧的过滤器的过滤器室，
    在所述过滤器室设有用于放入所述清洗桶内的含有臭氧的空气的空气入口和用于向外部放出由所述过滤器去除了臭氧的空气的空气出口，
    所述空气入口从所述盖中面向所述清洗桶内的面向下方突出。
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