CN113825435B - Crop cleaning machine - Google Patents

Abstract

A crop cleaner capable of improving cleaning performance and simultaneously removing and sterilizing pesticides. The crop cleaning machine (1) is provided with: a cylindrical washing tub (10) for accommodating crops; a pump (40) for sucking and discharging water stored in the washing tub (10); an ozone generator (50) for generating air containing ozone; and a bubble water generator (60) for taking in the water discharged from the pump (40) and the air containing ozone generated by the ozone generator (50), and spraying bubble water, which is formed by mixing small bubbles containing ozone into the water, from the spraying port (15) of the bubble water generator (60) to the inside of the washing tub (10). Wherein the injection port (15) is provided at a position at the bottom of the washing tub (10) which is offset from the central axis (P) of the washing tub (10), and injects bubble water obliquely upward, which intersects with a radial direction from the central axis (P) when the washing tub (10) is viewed in plan.

Description

Crop cleaning machine

Technical field

The invention relates to a crop cleaning machine for cleaning vegetables, fruits and other crops.

Background technique

Patent Document 1 describes a vegetable washing machine that accommodates vegetables and fruits in a washing container filled with water, and emits many bubbles from a bubble generating device disposed at the lower inner side of the washing container. When the bubbles are burst and annihilated, The vibration generated is used to clean vegetables and fruits.

In this vegetable washing machine, the bubble generating device is arranged at an eccentric position from the center of the washing container. The generation of bubbles causes imbalance, thereby generating water flow in the washing container. This water flow can be used to clean vegetables and fruits.

Crops with a smaller specific gravity than water, such as leafy vegetables and apples, tend to float in the water stored in the cleaning container. In the above-mentioned vegetable washing machine, although the imbalance caused by the bubbles generates a water flow, it is difficult for the water flow to exert a strong mechanical force that causes the crops to actively rotate up and down or move up and down alternately. Therefore, when cleaning such crops, the parts exposed to the water surface become difficult to clean, and uneven cleaning may easily occur.

In addition, it is ideal to simultaneously remove pesticides remaining on the crops or perform sterilization while cleaning the crops. However, it is difficult to achieve such pesticide removal and sterilization by relying solely on the action of bubbles and water flow like the vegetable washing machine mentioned above.

existing technical documents

patent documents

Patent Document 1: Japanese Patent Application Publication No. Sho 56-106581

Contents of the invention

Problems to be solved by inventions

The present invention was made in view of this problem, and its object is to provide a crop cleaning machine that can improve cleaning performance and simultaneously remove pesticides and sterilize.

solutions to problems

A crop cleaning machine according to the main aspect of the present invention is equipped with: a cylindrical cleaning bucket to accommodate crops; a pump to suck in and discharge water stored in the cleaning bucket; an ozone generating unit to generate air containing ozone; and a bubble water generator. The part takes in the water discharged from the pump and the air containing ozone generated by the ozone generating part, and the sparkling water formed by mixing the small bubbles containing ozone in the water is sprayed from the injection port of the sparkling water generating part. To the inside of the cleaning bucket. Wherein, the injection port is disposed at a position deviated from the central axis of the cleaning barrel from the bottom of the cleaning barrel, and injects the bubble water in an oblique upward direction, which is the same as when looking down at the cleaning barrel. The radial directions from the central axis intersect.

According to the above structure, since bubble water can be sprayed from the injection port to generate a vortex water flow in the cleaning bucket, the crops in the cleaning bucket can easily rotate up and down or alternate up and down, and the small bubbles contained in the bubble water can easily contact the crops without any dead ends. . This can suppress uneven cleaning of crops caused by the action of small bubbles. Therefore, cleaning performance can be improved.

Furthermore, since the bubble water contains ozone, the ozone is dissolved in the water in the cleaning bucket to generate ozone water, and the ozone water comes into contact with the crops. Thereby, pesticides remaining on crops can be removed by the oxidizing power of ozone, and crops can be sterilized by ozone.

The crop cleaning machine of this solution may adopt the following structure: it further includes a water dispersing part, the water dispersing part includes a nozzle located at the upper part of the cleaning bucket, and the water spat out from the pump is spread from the nozzle to the cleaning inside the barrel.

According to the above structure, even if a part of the crop is exposed to the water surface, the exposed part can be cleaned by the scattered water. Therefore, uneven cleaning of crops can be further suppressed.

In the crop cleaning machine of this solution, the following structure can be adopted: the inner bottom surface of the cleaning bucket is provided with a drainage port for discharging the water in the cleaning bucket and a suction port for sucking in the water supplied to the pump, and the The inner bottom surface has an inclined surface that slopes downward toward the drain port, and the suction port protrudes upward from the inclined surface.

According to the above structure, dirt such as fine mud removed from the crops easily flows to the drain outlet 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 of the suction port, and it is difficult for the accumulated dirt to be sucked in by the pump from the suction port together with water.

The crop cleaning machine according to this aspect may be configured to further include an introduction path for guiding ozone-containing air from the ozone generation part to the bubble water generation part. In this case, the following structure may be adopted: the ozone generating part is arranged at a lower position than the water level when water is stored in the cleaning bucket, and a part of the introduction path is raised to the water level. above.

According to the above-mentioned structure, even if the water stored in the washing tub passes through the bubble water generating part and enters the introduction path, the entering water can be prevented from entering the inside of the ozone generating part.

In the crop cleaning machine of this solution, the following structure can be adopted: the cleaning bucket has an opening on the top surface, and the opening is openable and closable with a cover. In this case, the following structure may be adopted: the cover is provided with a filter chamber for accommodating an ozone-removing filter, and the filter chamber is provided with an ozone-containing filter for putting into the cleaning bucket. An air inlet for air and an air outlet for releasing air from which ozone has been removed by the filter to the outside protrude from the cover downward toward the inside of the cleaning bucket.

According to the above structure, the air containing ozone in the cleaning bucket can be discharged to the outside after removing the ozone. Moreover, since the path of the air inlet from the opening part to the filter chamber becomes longer, when cleaning crops, even if water enters the air inlet, it is not easy to reach the filter chamber, and the filter is not easily wetted by water.

Invention effect

According to the present invention, it is possible to provide a crop cleaning machine that can improve cleaning performance and simultaneously remove pesticides and sterilize.

The effects and significance of the present invention will become clearer from the description of the embodiments shown below. However, the following embodiments are merely examples of implementing the present invention, and the present invention is not limited to the following embodiments.

Description of the drawings

FIG. 1 is a front cross-sectional view of the crop cleaning machine cut along the center position of the embodiment.

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 top view of the crop cleaning machine in a state in which the cover and the filter are removed according to the embodiment.

FIG. 4 is a partially cross-sectional view showing the structure of a main part of the crop cleaning machine according to the embodiment.

5 is a plan view of the crop cleaning machine with a cover omitted, showing a state in which crops are being cleaned according to the embodiment.

Explanation of reference signs

10: Cleaning bucket; 10a: Opening; 10b: Inner bottom surface; 11a: Inclined surface; 12: Drainage port; 13: Suction port; 15: Injection port; 20: Cover; 24: Filter chamber; 26: Ozone removal filtration (filter); 27: air inlet; 28: air outlet; 50: ozone generator (ozone generation part); 54: introduction path; 60: bubble water generator (bubble water generation part); 91: water distribution pipe ( Water dispersing part); 93: Nozzle.

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Figure 1 is a front cross-sectional view of the crop cleaning machine 1 taken along the center. 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 top view of the crop cleaning machine 1 with the cover 20 and the filter 80 removed. FIG. 4 is a partially cross-sectional view showing 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 cleaning bucket 10 is indicated by a single-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 accommodating and cleaning crops such as fruits and vegetables. The cleaning bucket 10 has a cylindrical shape with a bottom and an open top surface. The opening 10a on the top surface is covered with a cover 20 so as to be openable and closable. The cleaning tub 10 is supported by a bottomed cylindrical support frame 30 . The internal space of the support frame 30 formed below the washing tub 10 constitutes a machine room 31 . The cleaning tub 10, the cover 20, and the support frame 30 are formed of, for example, a resin material.

The pump 40, the ozone generator 50, and the sparkling water generator 60 are arrange|positioned in the machine room 31. The pump 40 sucks in and discharges the water stored in the cleaning bucket 10 . The ozone generator 50 generates air containing ozone. The sparkling water generator 60 takes in the water discharged from the pump 40 and the air containing ozone generated by the ozone generator 50, and uses a two-phase flow rotation method to generate sparkling water in which small bubbles containing ozone are mixed with the water. The bubble water is sprayed from the spray port 15 into the cleaning bucket 10 . In addition, the control unit 70 for controlling the operations of the pump 40 and the ozone generator 50 is arranged in the machine room 31 . In addition, the ozone generator 50 corresponds to the ozone generating part of this invention, and the sparkling water generator 60 corresponds to the sparkling water generating part of this invention.

A drainage recess 11 is formed in the center of the inner bottom surface 10 b of the washing tub 10 . The drainage recess 11 has a partially missing circular shape in order to avoid the fan blade 43 of the pump 40 . The bottom surface of the drainage recess 11 is formed as an inclined surface 11a that slopes downward from the left to the right, and a drainage hole 11b is formed in the lowest part of the inclined surface 11a. A drain port 12 for draining water in the cleaning tub 10 is provided on the bottom surface of the drain hole 11b. The inclined surface 11 a of the drainage recess 11 is inclined downward toward the drainage opening 12 .

The drainage recess 11 is provided with a suction port 13 for sucking 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. Furthermore, the protruding height of the suction port 13 is set to be larger than the depth of the drainage recess 11 .

A cylindrical connection port 12 a connected to the drain port 12 and a cylindrical connection port 13 a connected to the suction port 13 are formed on the outer bottom surface of the cleaning bucket 10 .

The drainage recess 11 is covered with the filter 80 . The filter 80 is made of, for example, a metal material, and has a planar shape corresponding to the planar shape of the drainage recess 11 . The central portion of the filter 80 bulges upward to form a handle 81 . The top end portion of the suction port 13 enters the space formed on the back side of the handle 81 . In the filter 80, a plurality of water passage holes 82 are formed around the handle 81, and a plurality of ventilation holes 83 for removing air trapped in the space on the back side of the handle 81 are formed on the upper surface of the handle 81. Foreign matter such as leaf dust from crops is caught in the filter 80 and becomes less likely to enter the drainage 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 drainage recess 11 . The injection recess 14 has an injection surface 14a facing obliquely 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 offset from the central axis P of the cleaning bucket 10 . Furthermore, the position of the injection port 15 is a position closer to the inner peripheral surface 10 c of the cleaning tub 10 than the central axis P in the radial direction from the central axis P of the cleaning tub 10 . The inclined surface 14b is interrupted in front of the injection surface 14a, and this portion is a horizontal bottom surface 14c. The bottom surface 14c is connected to the drainage hole 11b of the drainage recess 11 through the communication groove 16.

It should be noted that the bottom surface 14c and the communication groove 16 may be gently inclined toward the drainage hole 11b side. Furthermore, the inner bottom surface 10b of the washing tub 10 may be inclined gently toward the drainage recess 11 except for the drainage recess 11 and the injection recess 14.

A pipe unit 90 is provided on the inner peripheral surface 10c of the cleaning tub 10. The pipe unit 90 is a member in which a water distribution pipe 91 for dispersing water into the cleaning bucket 10 and a ventilation pipe 92 for flowing air containing ozone are integrally formed so as to be arranged along the circumferential direction of the cleaning bucket 10 . The tube unit 90 is formed of, for example, a resin material.

A water level line 17 extending in the circumferential direction is formed at a predetermined height position on the front surface of the pipe unit 90 . 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 flat, inverted L-shaped square pipe in the radial direction of the cleaning bucket 10 . Three nozzles 93 are provided at the upper end of the water dispersion pipe 91 so as to be arranged along the circumferential direction of the cleaning bucket 10 . Each nozzle 93 has a cylindrical shape and protrudes inward of the cleaning tub 10 . A cylindrical inlet 94 is formed at the lower end of the water distribution pipe 91 . In the inflow port 94, the distal end side is narrower than the proximal end side, and an annular sealing gasket 95 is mounted on the proximal end side. It should be noted that the water dispersion pipe 91 corresponds to the water dispersion part of the present invention.

The ventilation pipe 92 extends upward from one end located on the bottom side of the cleaning bucket 10 and then turns back near the opening 10 a of the cleaning bucket 10 and extends downward to the other end located on the bottom side of the cleaning bucket 10 . The barrel 10 is in the shape of a flat square tube in the radial direction. The folded position of the ventilation pipe 92 is higher than the water level line 17 , that is, the water level of the water stored in the cleaning bucket 10 . A cylindrical air inlet 96 is formed at one end of the ventilation duct 92 , and a cylindrical air outlet 97 is formed at the other end of the ventilation duct 92 . In the air inlet 96 and the air outlet 97, the distal end side is narrower than the proximal end side, and annular gaskets 98 and 99 are mounted on the proximal end sides.

The lower end of the tube unit 90 is connected to the connection portion 18 provided on the inner bottom surface 10 b of the cleaning tub 10 . The connection part 18 includes an insertion recess 18 a into which the lower end of the pipe unit 90 is inserted. The through holes 19a, 19b, and 19c through which the inflow port 94, the air inlet 96, and the air outlet 97 respectively pass are formed in the bottom surface of the fitting recess 18a. The top end portions of the inlet 94 , the air inlet 96 , and the air outlet 97 passing through the respective through holes 19 a , 19 b , and 19 c protrude downward from the cleaning tub 10 . Furthermore, the spaces between the proximal end sides of the inlet 94, the air inlet 96, and the air outlet 97 and the respective through holes 19a, 19b, and 19c are water-sealed by sealing pads 95, 98, and 99.

The left and right side surfaces 90a of the tube unit 90 are formed as inclined surfaces. This can prevent the crops moving by the water flow from colliding with the side surface 90a of the pipe unit 90 during the cleaning process, 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 14a also serves as the front panel 62 of the sparkling water generator 60, and a housing 61 is attached to the back of the front panel 62. A water sealing gasket 63 is provided between the housing 61 and the front panel 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 . Furthermore, an inner cylindrical wall 65 coaxial with the housing 61 and the outer cylindrical wall 64 is formed on the back surface of the front panel 62 so as to overlap the inner side of the outer cylindrical wall 64 .

An air suction port 66 is formed on the bottom wall of the housing 61 on the central axis of the housing 61 , and a cylindrical connection port 66 a connected to the air suction port 66 is formed on the outer surface of the bottom wall. A water inlet 67 opening in the tangential direction of the peripheral 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 in the injection surface 14a is located on the central axis of the housing 61 and serves as the injection port of the sparkling water generator 60.

The pump 40 includes a pump housing 41 , a motor 42 and a fan blade 43 . An impeller (not shown) is provided inside the pump casing 41 . Furthermore, the pump casing 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 drives the impeller to rotate. When the impeller rotates, water is sucked in from the suction port 46 and discharged from the first discharge port 44 and the second discharge port 45 . The fan blades 43 are rotated and driven by the motor 42 together with the impeller to cool the motor 42 .

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 67a of the water inlet 67 of the sparkling 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 inlet 94 of the water distribution pipe 91 . One end of the suction pipe 49 is connected to the suction inlet 46 . The other end of the suction pipe 49 is connected to the connection port 13 a of the suction port 13 of the cleaning bucket 10 .

The ozone generator 50 contains, for example, a pair of electrodes, takes in the air in the machine room 31 , generates discharge such as corona discharge by 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 air inlet 66 of the sparkling 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 air containing ozone from the ozone generator 50 to the sparkling water generator 60 . A part of the introduction path 54 is raised above the position of the water level line 17 of the cleaning bucket 10 , that is, the water level of the water stored in the cleaning bucket 10 at the location of the ventilation pipe 92 .

One end of the drain pipe 100 is connected to the connection port 12 a of the drain port 12 of the cleaning bucket 10 . The drain pipe 100 penetrates the support frame 30 and extends to the outside. An external drain cock 110 is connected to the other end of the drain pipe 100 . The external drain cock 110 is opened and closed by the 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 cock 110 .

The cover 20 includes a disc-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 portion 21 is substantially the same as the outer diameter of the cleaning tub 10 . The outer diameter of the body part 22 is set to be substantially the same as the inner diameter of the cleaning tub 10 . An annular sealing gasket 23 is provided on the outer peripheral surface of the body portion 22 . When the opening 10 a of the cleaning tub 10 is closed by the cover 20 , the body portion 22 is inserted into the inside of the cleaning tub 10 . The sealing gasket 23 is in contact with the inner circumferential surface 10c of the cleaning tub 10 and prevents water and air from leaking from between the body part 22 of the cover 20 and the inner circumferential surface 10c of the cleaning tub 10.

A hollow disk-shaped filter chamber 24 is provided in the center of the top plate 21 of the cover 20 . The filter chamber 24 is composed of a recessed portion 21a formed in the top plate portion 21 and a cover 25 that covers the recessed portion 21a from above. An ozone removal filter 26 including disk-shaped activated carbon or the like is arranged in the filter chamber 24 . The ozone removal filter 26 corresponds to the filter of the present invention.

An air inlet 27 is provided at the center of the bottom wall of the filter chamber 24 for placing air containing ozone in the cleaning bucket 10 . The air inlet 27 has a cylindrical shape and protrudes downward from the outer surface of the bottom wall facing the inside of the cleaning tub 10 . In addition, an air outlet 28 for releasing air from which ozone has been removed by the ozone removal filter 26 to the outside is provided in the central portion of the ceiling wall of the filter chamber 24 .

An operating portion 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 pausing the cleaning operation.

Next, the cleaning operation of crops performed by the crop cleaning machine 1 will be described.

FIG. 5 is a plan view of the crop cleaning machine 1 with the cover 20 omitted, showing a state in which a crop cleaning operation is being performed.

The user opens the cover 20 and puts the crops to be cleaned into the cleaning bucket 10 . Then, the user fills the cleaning bucket 10 with water up to the water level line 17 and closes the lid 20 . Then, the user presses the power button 121 to turn on the crop cleaning machine 1, and then presses the start button 122. Thereby, the cleaning operation starts, and the pump 40 and the ozone generator 50 operate.

As shown by the solid arrow in FIG. 1 , the water in the cleaning bucket 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 water distribution pipe 91 through the second water supply pipe 48 .

As shown by the solid arrow in FIG. 2 , in the sparkling water generator 60 , the water sent from the pump 40 flows into the casing 61 from the water inlet 67 toward the tangential direction of the peripheral wall of the casing 61 , and passes through it while swirling. The inside of the outer cylindrical wall 64 and the inner cylindrical wall 65 go to the injection port 15 . At this time, the central axis portion of the housing 61 becomes a negative pressure, thereby generating a suction force for sucking air in from the air suction port 66 . Due to this suction force, air is taken into the ozone generator 50 to generate ozone. As shown by the dotted arrows in FIG. 4 and FIG. released into the housing 61. The air containing ozone flows toward the injection port 15 together with the water swirling around the central axis of the casing 61 as an air column. Near the outlet of the injection port 15, it is broken by collision with the stationary water and becomes micron-sized or nano-sized. Level small bubbles. Then, the bubble water in which small bubbles containing ozone are mixed with water is sprayed from the injection port 15 into the inside of the cleaning bucket 10 by the water supply pressure of the pump 40 .

As shown by the thick arrows in FIGS. 2 and 5 , the injection port 15 injects bubble water in an obliquely upward direction that intersects with the radial direction from the central axis P when the cleaning bucket 10 is viewed from above. At this time, the bubble water follows the inclined surface 14b and therefore tends to move upward obliquely. As shown by the solid arrow in FIG. 5 , the water potential of the sprayed bubble water generates a vortex water flow in the cleaning bucket 10 . The vortex water flow rises from the bottom side of the cleaning barrel 10 to the water surface side.

As shown by the solid arrow in FIG. 1 , the water sent from the pump 40 to the water dispersion pipe 91 rises in the water dispersion pipe 91 and reaches three nozzles 93 , and is spread from each nozzle 93 .

In the cleaning bucket 10, the small bubbles released into the water come into contact with the crops. Through the vibration energy generated when the bubbles burst or annihilate, dust, mud and other dirt attached to the crops are removed, and the crops are cleaned. At this time, the crops in the cleaning barrel 10 move in an up-and-down rotation or up-and-down alternating manner by the force of the vortex water flow. Therefore, even if the crops to be cleaned are leafy vegetables, apples and other crops that float in water, small bubbles can contact the crops without blind spots, so uneven cleaning is less likely to occur. Furthermore, even if the crops to be cleaned are crops that do not easily float in the water and are difficult to emerge from the water, small bubbles are easily generated from the bottom side of the cleaning bucket 10 because the crops rotate up and down, etc., so the small bubbles are easily dispersed without any dead ends. It is not easy to cause uneven cleaning when it comes into contact with crops.

Furthermore, the ozone contained in the bubbles dissolves in the water in the cleaning bucket 10 and becomes ozone water, and the ozone water comes into contact with the crops. The oxidizing power of ozone acts on crops, and pesticides remaining on crops are decomposed and removed. Moreover, crops are sterilized by ozone.

The ozone water in the cleaning bucket 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, thereby improving the effect of removing pesticides and sterilizing bacteria.

Furthermore, water, that is, ozone water, is spread from the three nozzles 93 of the water dispersion pipe 91 to the portion of the crop exposed to the water surface. Therefore, the exposed parts of the crop are cleaned by the impact of the dispersed water. In addition, pesticide removal and sterilization of exposed parts are carried out through the action of ozone.

Ozone that is not dissolved in the water in the cleaning barrel 10 is mixed into the air in the cleaning barrel 10 . Part of the air mixed with ozone flows to the filter chamber 24 through the air inlet 27 , removes ozone through the ozone removal filter 26 , and then is discharged to the outside through the air outlet 28 .

The air inlet 27 of the filter chamber 24 is easily exposed to spray generated during cleaning, for example due to water sprayed from the nozzle 93 hitting the crop and bouncing back. The air inlet 27 has a structure protruding downward from the cover 20 toward the inside of the cleaning tub 10, and the path from the opening portion to the filter chamber 24 becomes long. Therefore, even if water enters the air inlet 27, it cannot easily reach the filter chamber 24. Therefore, the ozone removal filter 26 is not easily wetted by water. Furthermore, even if the water splash hits the surface around the air inlet 27 in the cover 20 and flows toward the air inlet 27 side along the surface, the water is unlikely to enter the air inlet 27 .

The cleaning operation ends when a predetermined operation time, for example, 20 minutes has elapsed. At this time, the ozone generator 50 is stopped a predetermined time before the end of the cleaning operation, for example, one minute before. As a result, ozone can be decomposed in the remaining time before completion, so that residual ozone can be generated in the cleaning tub 10 as little as possible when the operation is completed.

It should be noted that the operating time can be set so that the user can select from multiple times. In this case, the operation unit 120 is provided with a selection button for selecting the operating time.

When the cleaning operation is completed, the user opens the cover 20 and takes out the cleaned crops from the cleaning bucket 10 . Then, the user opens the external drain valve 110 to drain water from the cleaning bucket 10 . As shown by the dotted arrow in FIG. 1 , the water in the cleaning bucket 10 is drained through the drain port 12 , the drain pipe 100 and the external drain valve 110 . At this time, the water accumulated in the injection recess 14 passes through the communication groove 16 and reaches the drain port 12 . When drainage is completed, the user closes the external drain valve 110 and closes the cover 20 .

Then, before performing the washing operation, when water is stored in the washing tub 10 to the water level indicated by the water level line 17 , the water enters the casing 61 of the bubble water generator 60 from the injection 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 air suction port 66. At this time, a part of the introduction path 54 is raised above the water level in the cleaning tub 10 at the location of the ventilation pipe 92 . Therefore, the incoming water can only reach the same height as the water level in the cleaning bucket 10 in the ventilation pipe 92 . Therefore, even if the ozone generator 50 is disposed in the machine room 31 at a position lower than the water level when water is stored in the cleaning tub 10 , water can be prevented from entering the ozone generator 50 .

In addition, dirt such as fine mud removed from the crops during the cleaning operation can pass through the water holes 82 of the filter 80 and enter the drainage recess 11 . The bottom surface of the drain recess 11 is formed as 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 protruding from the inclined surface 11 a. Therefore, the entered dirt easily flows to the drain outlet 12 along the inclined surface 11a and is not easily accumulated on the inclined surface 11a. Furthermore, even if dirt accumulates on the inclined surface 11 a , it is difficult for the dirt to reach the opening position of the suction port 13 , and it is difficult for the accumulated dirt to be sucked in by the pump 40 from the suction port 13 together with water.

＜Effects of Embodiment＞

According to this embodiment, bubble water can be sprayed from the injection port 15 to generate a vortex water flow in the cleaning bucket 10. Therefore, the crops in the cleaning bucket 10 can easily rotate up and down or alternate up and down, and the small bubbles contained in the bubble water can easily be eliminated. contact with the crops. This can suppress uneven cleaning of crops caused by the action of small bubbles.

Furthermore, since the bubble water contains ozone, the ozone is dissolved in the water in the cleaning bucket 10 to generate ozone water, and the ozone water comes into contact with the crops. As a result, pesticides remaining on crops can be removed by the oxidizing power of ozone, and crops can be sterilized by ozone.

Furthermore, according to this embodiment, since water is dispersed from the water dispersion pipe 91, even if a part of the crop is exposed to the water surface, the exposed part can be washed by the dispersed water. Therefore, uneven cleaning of crops can be further suppressed.

Furthermore, according to the present embodiment, the bottom surface of the drainage recess 11 which is part of the inner bottom surface 10 b of the cleaning tub 10 is formed as an inclined surface 11 a that slopes downward toward the drainage port 12 , and the suction port 13 for sucking in water supplied to the pump 40 It is provided to protrude upward from the inclined surface 11a. Therefore, dirt such as fine mud removed from the crops easily flows to the drain outlet 12 along the inclined surface 11a and is not easily accumulated on the inclined surface 11a. Furthermore, even if dirt accumulates on the inclined surface 11 a , it is difficult for the dirt to reach the opening position of the suction port 13 , and it is difficult for the accumulated dirt to be sucked in by the pump 40 from the suction port 13 together with water.

Furthermore, in the present embodiment, in the case where the ozone generator 50 is disposed at a position lower than the water level when water is stored in the washing tub 10 , an introduction path for introducing ozone from the ozone generator 50 into the sparkling water generator 60 is provided. A part of 54 is raised above the water level in the cleaning bucket 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 the same height as 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 .

Furthermore, in this embodiment, since the air inlet 27 of the filter chamber 24 is configured to protrude downward from the surface of the cover 20 toward the inside of the cleaning 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 is less likely to reach the filter chamber 24 and the ozone removal filter 26 is less likely to be wetted by water.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments and the like, and the embodiments of the present invention may be modified in various ways other than those described above.

For example, in the above-described embodiment, the injection recess 14 including the injection surface 14 a having the injection port 15 is formed in the inner bottom surface 10 b of the cleaning tub 10 . However, the injection port 15 may be provided at the bottom of the cleaning tub 10 . For example, the injection recess may be formed in the inner circumferential surface 10 c of the cleaning tub 10 near the inner bottom surface 10 b.

In addition, in the above embodiment, the crop cleaning machine 1 adopts a structure in which the water supply and drainage of the cleaning bucket 10 are manually performed by the user. However, the crop cleaning machine 1 may be configured to include a water supply valve and a drain valve that are opened and closed under the control of the control unit 70 , thereby automatically supplying water to and draining the cleaning bucket 10 .

Furthermore, in the above-described embodiment, the lid 20 is configured to open and close the opening 10a by attaching and detaching the lid 20 to the cleaning tub 10 . However, the lid 20 may be connected to the washing tub 10 through a hinge and may be configured to open and close the opening 10a by rotating with the hinge as a fulcrum.

Furthermore, in the above embodiment, the sparkling water generator 60 is configured to generate sparkling water by a two-phase flow rotation system. However, as long as the bubble water generator 60 takes in the water protruding from the pump 40 and the air containing ozone generated by the ozone generator 50 to generate bubble water, and sprays the bubble water from the injection port 15 into the inside of the cleaning bucket 10 structure, other methods can also be used.

Furthermore, in the above-described embodiment, the cleaning tub 10 is supported by the support frame 30 . However, the cleaning bucket 10 may be arranged inside the box. In this case, the space below the cleaning bucket 10 in the cabinet becomes a machine room.

In addition, various modifications can be appropriately made to the embodiments of the present invention within the scope of the technical ideas shown in the technical claims.

Claims (4)

1. A crop cleaning machine, characterized by: A cylindrical cleaning bucket to contain crops; A pump to suck in and spit out the water stored in the cleaning bucket; An ozone generating section generates ozone-containing air; and The sparkling water generating unit takes in water discharged from the pump and air containing ozone generated by the ozone generating unit, and mixes small bubbles containing ozone in the water to produce sparkling water from the sparkling water generating unit. The injection port sprays towards the inside of the cleaning bucket, The injection port is arranged at a position deviated from the central axis of the cleaning barrel at the bottom of the cleaning barrel, and injects the bubble water in an oblique upward direction. The radial direction starting from the central axis crosses; A water dispersing part includes a nozzle located at an upper part of the cleaning barrel, and distributes water discharged from the pump from the nozzle into the washing barrel. 2. The crop cleaning machine according to claim 1, characterized in that, The inner bottom surface of the cleaning bucket is provided with a drain port for discharging the 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 that slopes downward toward the drain outlet, The suction port protrudes upward from the inclined surface. 3. The crop cleaning machine according to any one of claims 1 to 2, characterized in that, further provided with an introduction path for guiding ozone-containing air from the ozone generation part to the bubble water generation part, The ozone generating part is arranged at a lower position than the water level when water is stored in the cleaning bucket, A part of the introduction path is raised above the water level. 4. The crop cleaning machine according to any one of claims 1 to 3, characterized in that, The cleaning bucket has an opening on the top surface, The opening is openably and closably blocked by a cover, The cover is provided with a filter chamber that accommodates a filter for removing ozone, The filter chamber is provided with an air inlet for placing ozone-containing air in the cleaning bucket and an air outlet for releasing air from which ozone has been removed by the filter to the outside. The air inlet protrudes downwardly from the cover toward the inside of the cleaning tub.