JP3689013B2 - Rice washing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice washing apparatus for automatically supplying rice in a rice storage to a rice washing tank and washing the rice with water.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a rice washing apparatus including a rice storage for storing rice and a rice washing tank for washing rice introduced from the rice storage is known.
This type of rice washing apparatus is roughly classified into a type having a rice storage in the upper part of the rice washing tank and a type having a rice storage in the lower part.
The former type has the advantage that it can be introduced into the rice washing tank by letting the rice in the storage rice store fall naturally, so there is no need to provide special means for this input, but the storage rice store is in a high position. Therefore, it is difficult to replenish rice, clean the inside of the warehouse, and the like, increasing the burden on the user.
[0003]
On the other hand, the latter type requires a means to supply rice from the lower rice storage to the upper rice washing tank, but the rice storage can be arranged as low as possible, making it easy to supply and clean rice. This is very beneficial for the user.
Therefore, if the user's usability is emphasized, the latter type is an appropriate choice, but in this case, the provision of rice supply means complicates the structure, increases the size, and increases the cost. Since loss occurs, it is extremely important to suppress these as much as possible so as not to negate the usability.
[0004]
[Problems to be solved by the invention]
As such rice supply means, conventionally, a method of conveying rice weighed by an elevator or a lift (for example, JP-A-6-269368), a negative pressure in the rice washing tank by a blower, A method (for example, JP-A-10-263422) in which rice is sucked into a rice washing tank through a supply pipe has been employed.
In the case of an elevator type, it is necessary to provide a conveyor belt and a large number of lifting shelves, which is disadvantageous in terms of miniaturization and cost reduction. Not appropriate.
[0005]
In contrast, the suction type is advantageous in that rice can be supplied efficiently and in a short time compared to the lift type.
However, even in the case of this suction type, a suction port for sucking air and a supply port for receiving rice must be formed in the rice washing tank, and a lot of processing is required. By connecting piping or the like to the pipe, the area around the rice washing tank becomes cluttered, which has been a cause of hindering simplification and downsizing of the structure or cost reduction. The present invention has been made in view of the above circumstances, and is a rice washing apparatus of a type that sucks rice by making the inside of a rice washing tank into a negative pressure by a suction apparatus. With the goal.
[0006]
[Means for Solving the Problems]
The technical means taken by the present invention to achieve the above object is that the suction device 41 sucks the air in the rice washing tank 10 to create a negative pressure, thereby bringing the rice in the rice storage 30 into the rice washing tank 10. The rice washing apparatus is configured to supply and wash the rice in the rice washing tank 10, wherein an opening 47 is formed in the upper side surface of the rice washing tank 10, and the opening 47 has an opening 47 in the rice washing tank 10. A pipe 43 serving as a suction pipe for sucking air and a function as a drain pipe for draining water in the rice washing tank 10 from the opening 47 is connected.
[0007]
That is, conventionally, the flushing rice washing tank 10 is mainly provided with an overflow port for draining excess water and a drain pipe connected to the overflow port. By using the flow port (opening 47) as a suction port for sucking the air in the rice washing tank 10 and also using the drain pipe as a suction pipe, the structure can be simplified, downsized, and cost can be reduced. It was done.
More specifically, the suction / drainage pipe 43 includes a first pipe body 43A disposed in the vertical direction at the side of the rice washing tank 10, one end connected to the opening 47, and the other end of the first pipe body 43A. A first tubular body 43A connected to the upper and lower middle portions of the first tubular body 43A, the upper end side of the first tubular body 43A is connected to the suction device 41, and the first tubular body 43A It can be set as the structure which open | released the lower end side of this to the exterior of the apparatus.
[0008]
In this case, the water discharged from the opening 47 can be discharged from the second pipe 43B to the outside of the machine through the first pipe body 43A, and when the rice is supplied, the suction device 41 is operated to operate the first It becomes possible to suck the air in the rice washing tank 10 through the tube body 43A and the second tube body 43B.
When the lower drainage pipe 13 for draining from the lower part of the rice washing tank 10 is provided, the lower end of the first pipe body 43A is provided with a merging portion 14 that merges with the lower drainage pipe 13, and the merging portion 14 has a lower portion. An opening / closing valve 16 for opening / closing the drain pipe 13 is provided, and an operating tool 57 for opening / closing the opening / closing valve 16 is inserted into the first tube body 43A. The rice washing tank 10 is located above the first tube body 43A. It is preferable to provide a drive unit 58 for driving the operation tool 57 on the upper side.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
7 and 8 show a rice washing apparatus 1 according to an embodiment of the present invention. The rice washing apparatus 1 includes a rice washing part 3 provided at the upper part of the main frame 2, and a rice storage part 4 provided at the lower part. And a supply means 5 for supplying rice from the rice storage section 4 to the rice washing section 3.
The main frame 2 is provided with a pair of columns 7 on both sides of the rear portion of the lower base 6, and a rectangular box-shaped upper case 8 on the column 7.
[0010]
The rice washing section 3 includes a rice washing tank 10 attached to the lower surface of the upper case 8. The rice washing tank 10 has a cylindrical upper portion and a lower tapered portion (inverted conical cylindrical shape). Yes. Further, the rice washing tank 10 is detachably attached to the upper case 8 by a stopper 62.
A drainage jacket 11 is provided in the lower part of the rice washing tank 10, and a filter body 12 such as a net or punching metal that allows scouring and water to pass but does not pass rice as shown in FIG. 1 in the drainage jacket 11. A drainage jacket 11 is connected to a drainage jacket 11 via a lower drainage pipe 13. The water collecting box 14 is connected to a water discharge pipe 15 opened to the outside of the apparatus.
[0011]
The water in the washing tank 10 passes through the filter body 12 and can be discharged from the drainage jacket 11 through the lower drainage pipe 13 and the water collection box 14 to the outside of the machine. An on-off valve 16 that opens and closes is incorporated.
A rice draining port 17 is formed in the lower part of the rice washing tank 10, and the rice draining port 17 can be freely opened and closed by a rice draining valve 18.
The rice draining valve 18 has a conical shape and is attached to the lower end of a valve shaft 19 disposed in the vertical direction at the center position of the rice washing tank 10. The upper end of the valve shaft 10 protrudes from the rice washing tank 10 and is an upper part. It reaches into the case 8 and is connected to a valve drive unit 20 (see FIG. 4) having a cam, a crank mechanism, a motor and the like.
[0012]
When the valve drive unit 20 is operated, the valve shaft 19 and the rice removal valve 18 are moved up and down. When the rice removal valve 18 is lowered, the rice removal port 17 is opened, and when it is raised, the rice removal port 17 is closed. Rice, water and air are not leaked.
As shown in FIG. 1, the rice washing tank 10 is provided with a stirring means 21 for stirring the rice and a water supply means 22 for supplying water into the tank 10.
The stirring means 21 has a rotating shaft 23 supported on the upper part of the rice washing tank 10 (the lower surface of the upper case 8) so as to be rotatable about the vertical axis, and a stirring body 24 attached to the rotating shaft 23.
[0013]
The rotating shaft 23 is formed in a cylindrical shape, and the valve shaft 19 is inserted into the cylinder so as to be slidable up and down and relatively rotatable. Further, as shown in FIG. 4, the upper end of the rotating shaft 23 is connected to an agitation driving unit 25 having a bevel gear mechanism, a motor, etc. in the upper case 8, and is rotated about the axis by the agitation driving unit 25.
The stirrer 24 is formed of a solid or hollow bar, and is provided in a radial pattern with respect to the rotating shaft 23.
As shown in FIG. 5, the stirrers 24 are provided so as to be shifted from each other by 90 ° in phase and have different radial lengths. The first stirrer 24A, which is the longest in the radial direction, rotates in the rotational direction. In the direction opposite to A, the second to fourth stirring bodies 24B, 24C, and 24D are arranged so that the lengths in the radial direction are sequentially shortened.
[0014]
The first stirrer 24A has a horizontal first member 26A whose inner diameter end is connected to the upper portion of the rotating shaft 23, and is bent downward from the first member 26A, and is vertically moved along the inner wall of the rice washing tank 10. A second member 26B disposed in the direction and a third member 26C in the horizontal direction bent from the second member 26B in the radially inward direction and having a radially inner end connected to the lower portion of the rotating shaft 23. And is provided in a wide range from the upper part to the lower part of the rotating shaft 23.
The second stirrer 24B also has the first to third members 26A, 26B, and 26C. However, the second stirrer 24B has a shorter vertical length than the first stirrer 24A. Is provided.
[0015]
Similarly, the third stirring member 24C has the first to third members 26A, 26B, and 26C. The third stirring member 24C has a shorter vertical length than the first stirring member 24A and is provided above the rotating shaft 23. Yes.
The fourth stirrer 24D includes first and second members 26A and 26B, but does not include the third member 26C, and the lower end portion of the second member 26B is a free end. Further, the fourth stirring body 24D is also shorter in the vertical length than the first stirring body 24A and is provided at the lower portion of the rotating shaft 23. The lower end portion of the second member 26B is in the vicinity of the upper portion of the rice removal valve 18. (See FIG. 8).
[0016]
Thus, the rice in the rice washing tank 10 is uniformly stirred by making the vertical length, vertical position and radial length of the first to fourth stirring bodies 24A, 24B, 24C, 24D different. Can be done.
The first stirrer 24 </ b> A has a shape in which the tip from the midway portion in the radial direction is bent slightly toward the rear side in the rotation direction A.
As shown in FIGS. 1 and 4, the water supply means 22 includes a water supply 27 such as a nozzle and a shower provided in the upper part of the rice washing tank 10, and the water supply 27 is connected to a water supply via a water supply pipe 28. It is connected to a pressure water source such as a water storage tank. The water supply pipe 28 is appropriately provided with an on-off valve such as an electromagnetic valve.
[0017]
The rice washing is performed by stirring the rice with the stirring means 21 while supplying water into the rice washing tank 10 by the water supply means 22. Then, after washing the rice, the water is adjusted by the water supplied from the water supply means 22 through a colandering process and the like, and the rice discharge valve 18 is opened to open the receiving container 34 (see FIGS. 7 and 8) set below the rice drain valve 18. It is designed to discharge rice and water.
In this embodiment, the rice is washed by a stirring method, but it can be replaced by a method of washing rice while circulating rice and water by a jet water flow or the like.
[0018]
As shown in FIGS. 7 and 8, the rice storage unit 4 includes a rice storage 30 that stores rice, and a measuring instrument 31 that measures the rice in the rice storage 30.
The rice storage 30 is provided with a rectangular tube portion at the top and a downward tapered funnel portion at the bottom, and a measuring device 31 is disposed at the lower end of the funnel portion. The measuring device 31 measures the desired amount of rice in the rice storage 30 and discharges it downward.
A substantially box-shaped receiving member 32 for receiving the discharged rice is provided below the measuring instrument 31.
[0019]
The upper portion of the rice storage 30 is closed by a lid 33 that can be freely opened and closed. The lid 33 is also used as a mounting table for the receiving container 34. As the receiving container 34, an inner pot of a rice cooker, a bucket, a bowl or the like can be used.
The column 7 of the main frame 2 is provided so that its length can be adjusted. Specifically, the support column 7 is divided in the middle of the upper and lower parts, and the upper support column 7B is fitted to the lower support column 7A so as to be movable up and down. The support column 7B is fixed to the lower support column 7A. Thereby, the height of the upper case 8 attached to the upper column 7B and the rice washing tank 10 can be adjusted.
[0020]
Therefore, as the receiving container 34, the rice washing is performed according to the case where an inner pot or the like having a low height is placed as shown in FIG. 6 (a) and the case where a bucket or the like having a high height is placed as shown in FIG. 6 (b). The tank 10 can be set at an appropriate position.
Further, a guide member 35 is provided between the upper case 8 and the upper support column 7B to guide the receiving container 34 so that it does not come into contact with the lower end of the rice washing tank 10 when the receiving container 34 is taken out from the mounting table 33. Is provided.
As shown in FIG. 7, a pair of guide members 35 are provided on the left and right sides of the rice washing tank 10, extending while bending downward and rearward from the front side of the upper case 8, and the rear end is supported on the upper column 7 </ b> B side. It has a configuration. The lower portion of the guide member 35 is curved in an arc shape, and the lowermost end thereof is disposed slightly on the left and right sides of the rice draining valve 18.
[0021]
The height of the guide member 35 is also adjusted in accordance with the height adjustment of the rice washing tank 10.
Detection means 36 for detecting the presence or absence of the receiving container 34 is provided on the lower support column 7A side. The detection means 36 includes a sensor 37 such as a limit switch and a detector 38 that comes into contact when the receiving container 34 is set.
By providing the detection means 36 on the lower support column 7 </ b> A side, the detection means 36 is disposed at a fixed position together with the mounting table 33 regardless of the height adjustment of the rice washing tank 10.
As shown in FIGS. 7 and 8, left and right side portions of the mounting table 33 are erected with a U-shaped handle 39 in side view, and the mounting table (lid body) 33 is opened via the handle 39. The rice storage 30 can be replenished and cleaned.
[0022]
Further, the handle 39 also has a function as a restricting member for restricting the position of the receiving container 34 on the mounting table 33 so that it does not fall to the left and right sides.
In addition, you may make it replace with an inner pot etc. in the above-mentioned table 33, and may make it mount a rice cooker, and in this case, comprising the automatic rice-washing rice cooker which performs rice washing and rice cooking continuously from the measurement of rice. Is possible.
The supply means 5 for supplying rice from the rice storage 30 to the rice washing tank 10 connects a suction device 41 such as a blower installed on the lower base 6 of the main frame 2, and the suction device 41 and the rice washing tank 10. Supply pipe 42 and suction pipe 43.
[0023]
The discharge port of the suction device 41 is connected to one side of the receiving member 32, and the lower end of the supply pipe 42 is connected to the other side of the receiving member 32. The supply pipe 42 extends upward through the left and right support columns 7 and is connected to a supply port 44 (see FIG. 1) formed in the upper case 8 at the upper portion of the rice washing tank 10.
A suction box 45 is connected to the suction port of the suction device 41, and a suction pipe 43 is connected to the suction box 45. The suction box 45 has an outer shape larger than the diameter of the suction tube 43 and includes a filter at a connection portion with the suction device 41. Further, the suction box 45 has a double box structure, and the inner box is detachably mounted from the outer box, so that rice grains and the like entering from the suction pipe 43 are shielded by a filter so as not to be sucked into the suction device 41. At the same time, the rice grains and the like that have entered the suction box 45 can be easily removed by removing the inner box.
[0024]
As shown in FIGS. 7 and 8, the suction tube 43 is constituted by first to third tube bodies 43A, 43B, and 43C.
The third tube body 43C has a lower end connected to the suction box 45, extends upward through the column 7 on the left and right other side (opposite to the one through which the supply tube 42 is passed), and is a joint provided in the upper case 8 46.
The joint 46 is connected to the upper end of the first tubular body 43A disposed in the vertical direction on the side of the rice washing tank 10, and is located in the middle of the upper and lower sides of the first tubular body 43A. The lower end of the second tubular body 43B is connected.
[0025]
The upper end of the second tube body 43 </ b> B is connected to a suction port (opening) 47 formed on the upper side surface of the rice washing tank 10.
When the suction device 41 is operated with the above-described configuration, the rice washing is performed from the suction port 47 through the suction path B formed by the third tube body 43C, the first tube body 43A, and the second tube body 43B as shown in FIG. The air in the tank 10 is sucked, whereby the pressure in the rice washing tank 10 becomes negative, and the rice in the receiving member 32 flows through the supply path C formed by the supply pipe 42 to the rice washing tank 10 from the supply port 44. It comes to be supplied.
[0026]
Accordingly, the supply pipe 42, the suction pipe 43, and the suction device 41 are configured so that air circulates in a closed path and the rice is conveyed in the middle thereof.
The opening 47 formed in the rice washing tank 10 as an air suction port also serves as an overflow port for discharging excess water to the outside of the tank when washing the rice. The connected second pipe body 43B and the first pipe body 43A also serve as a drain pipe.
That is, the lower end portion of the first pipe body 43A as the drain pipe is connected to the water collection box (merging section) 14, and the water discharged from the overflow port 47 is the second pipe body 43B. And, it flows into the water collection box 14 through the drainage path D formed by the first pipe body 43A, and is discharged from the water collection box 14 to the outside through the discharge pipe 15.
[0027]
Therefore, the air suction path B and the drainage path D overlap with each other in the second pipe body 43B. In the first pipe body 43A, the upper side of the connection portion of the second pipe body 43B becomes the suction path B, The lower side branches to the drainage path D.
With this configuration, it is not necessary to separately form both the suction port and the drain port for the rice washing tank 10, and it is not necessary to separately provide the suction pipe and the drain pipe. And cost reduction.
The second tubular body 43B is constituted by a flexible tube such as a flexible hose, and can be easily attached to and detached from the rice washing tank 10 when the rice washing tank 10 is attached to or detached from the upper case 8. The lower drainage pipe 13 is also constituted by a flexible pipe such as a vinyl hose.
[0028]
As shown in FIG. 2, the opening / closing valve 16 of the lower drain pipe 13 provided in the water collection box 14 includes a valve body 50 that opens and closes a connection port 14 </ b> A of the lower drain pipe 13 with respect to the water collection box 14, and the valve body 50. The valve stem 51 is supported by the water collection box 14 via a bracket 52 so as to be slidable in the axial direction.
The valve rod 51 is fitted with a biasing member 53 made of a compression coil spring, and the biasing member 53 is compressed between a receiving member 54 provided at the other end of the valve rod 51 and a bracket 52. Yes. Thereby, the urging | biasing force of the direction which opens the lower drain pipe 13 is provided to the said valve body 50. As shown in FIG.
[0029]
The opening / closing valve 16 is opened / closed by an opening / closing mechanism 55. The opening / closing mechanism 55 includes a substantially L-shaped crank body 56 disposed in the water collection box 14, an operating tool 57 for operating the crank body 56, and a drive unit 58 for driving the operating tool 57 (see FIG. 1).
The crank body 56 includes a vertical pushing member 56A that is in contact with the receiving member 54 of the valve stem 51, and an operated member 56B that is bent in the horizontal direction from the upper end of the pushing member 56A. A coupling portion between the operation member 56B and the pushing member 56A is supported in the water collection box 14 through a support shaft 59 so as to be swingable.
[0030]
The operation tool 57 is configured by a wire, a thin rod, or the like, and a lower end portion of the operation tool 57 is connected to a distal end of the operated member 56B.
The drive unit 58 is configured by a cam, a motor, a solenoid, or the like. As shown in FIGS. 1 and 4, a bracket or the like is provided on the joint 46 in the upper case 8 and above the first tubular body 43A. Is supported through.
The operation tool 57 is inserted into the first tube body 43A and extends in the vertical direction, and its upper end protrudes from the joint 46 and is connected to the drive unit 58 so that the drive unit 58 reciprocates up and down. It has become.
[0031]
The crank body 56 is swung by the vertical movement of the operation tool 57, so that the on-off valve 16 is opened and closed.
In the water collection box 14, a valve device 60 for opening and closing the first pipe body 43A is also provided.
As shown in FIG. 2, the valve device 60 includes a floating valve 61 formed of a light plate material such as a synthetic resin material, and the floating valve 61 has a first tube body 43 </ b> A with respect to the water collection box 14. The connection port 14B is opened and closed.
[0032]
Further, as shown in FIG. 3, the idle valve 61 is formed in a planar rectangular shape with a larger area than the connection port 14 </ b> B, and is placed on the operated member 56 </ b> B in the crank body 56.
The floating valve 61 is vertically penetrated by the operating tool 57, and moves up and down using the operating tool 57 as a guide.
When the rice in the rice storage 30 is sucked into the rice washing tank 10, the lower drain pipe 13 is closed by the opening / closing valve 16 as shown in FIG. 2B in order to seal the inside of the rice washing tank 10. Then, when the air in the rice washing tank 10 is sucked through the suction pipe 43 by the operation of the suction device 41, the floating valve 61 is sucked up and sucked onto the upper surface of the water collection box 14, and the first pipe body 43A The lower end (connection port 14B) is closed.
[0033]
At this time, since the idle valve 61 is guided by the operating tool 57, it can be reliably closed without being displaced from the connection port 14B.
Further, by using the operation tool 57 as a guide for the idle valve 61, it is not necessary to provide a separate guide, and the structure can be simplified.
During the rice washing operation, as shown in FIG. 2A, the on-off valve 16 is opened to allow drainage from the lower part of the rice washing tank 10. At this time, the floating valve 61 is separated from the connection port 14B by its own weight. In this state, it is placed on the operated member 56 </ b> B and allows water to flow into the water collection box 14 from the overflow port 47.
[0034]
In addition, at the end of the rice washing operation, water is supplied from the water supply means 22 with the on-off valve 16 closed, and an overflow operation is performed to discharge the soot floated on the water surface from the overflow port 47 by increasing the water volume of the rice washing tank 10. In this case, as shown by a two-dot chain line in FIG. 2 (b), the floating valve 61 remains on the operated member 56B and does not close the connection port 14B, so the overflow port 47 to the water collection box 14 does not close. Inflow of water is allowed.
In addition, as long as it has an area larger than the connection port 14B, the idle valve 61 can be formed in a planar circular shape or a polygonal shape other than a quadrangular shape.
[0035]
The first tubular body 43A has a short lower portion used as the drainage path D, and most of the upper portion is used as the suction path B. Therefore, the operation tool 57 is inserted into the first tubular body 43A. By doing so, the range in which the operating tool 57 comes into contact with water is reduced, and corrosion due to rust or the like can be prevented.
Since the suction / drain opening 47 is formed on the side surface of the rice washing tank 10, as shown in FIG. 4, the upper space of the rice washing tank 10 is not eroded, and the valve drive unit 20 and the stirring drive unit are not eroded. 25, the arrangement space of the water supply pipe 28 can be secured widely.
[0036]
That is, in the conventional rice suction type rice washing apparatus, since the suction pipe 43 is connected to the upper part of the rice washing tank 10 or the suction apparatus 41 is disposed, the upper space of the rice washing tank 10 is narrowed, and the parts in the space are reduced. Although maintenance such as assembly, inspection, and replacement has become difficult, since the suction port 47 is formed on the side surface of the rice washing tank 10 as in this embodiment, a space can be provided above the tank. And maintainability are improved.
In the upper case 8, the suction pipe 43 (third pipe body 43 </ b> C) and the supply pipe 42 are piped in an intersecting state. That is, the supply pipe 41 passes through the left column 7 and is connected to the supply port 44 disposed on the right side of the rice washing tank 10, while the third tube body 43 </ b> C passes through the right column 7 to wash the rice. The first tube body 43 </ b> A disposed on the left side of the tank 10 is connected via a joint 46.
[0037]
This prevents the third pipe body 43C and the supply pipe 42 from being bent suddenly in the upper case 8, thereby reducing air suction resistance and rice supply resistance, and cracking damage to the pipes 43C and 42. Is preventing.
Note that the left-right arrangement of the supply port 44 and the first tubular body 43A and the left-right arrangement of the supply pipe 42 and the third tubular body 43C can be reversed.
The present invention is not limited to the above-described embodiment, and can be appropriately changed in design.
[0038]
【The invention's effect】
As described above in detail, in the present invention, a pipe for suction and drainage is connected to the opening formed in the upper side surface of the rice washing tank, and the suction of the air in the rice washing tank is utilized using the pipe, Since water can be discharged, the structure can be simplified, downsized, and cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a rice washing apparatus according to an embodiment of the present invention.
FIG. 2 is a front view showing details in a water collection box (merging portion).
FIG. 3 is a plan view showing details in a water collection box (merging section).
FIG. 4 is a plan view inside the upper case.
5A is a perspective view of a stirring member, and FIG. 5B is a plan view.
FIG. 6 is a side view showing a state of adjusting the height of the rice washing tank.
FIG. 7 is an overall front view of the rice washing apparatus.
FIG. 8 is an overall side view of the rice washing apparatus.
[Explanation of symbols]
10 Rice washing tank 14 Water collection box (Merging section)
16 On-off valve 41 Suction device 43 Suction / drain pipe 43A First pipe body 43B Second pipe body 47 Suction / drain opening 57 Operating tool 58 Drive unit

Claims (2)

The suction device (41) sucks the air in the rice washing tank (10) to a negative pressure, and passes the air passing through the suction device (41) to the rice washing tank (10) in the rice storage (30 ) rice in the貯米cabinet (30) is supplied to the rice washing tank (10) together with the air by deploying, a rice washing apparatus adapted to wash the rice in the rice washing tank (10) ,
An opening (47) is formed in the upper side surface of the rice washing tank (10), and the opening (47) functions as a suction tube for sucking air in the rice washing tank (10) from the opening (47). And connecting the tubular body (43B) serving as a drainage pipe for draining the water in the rice washing tank (10) from the opening (47) ,
The pipe body (43B) is connected to the middle part of the pipe body (43A) extending downward from the opening (47) and arranged vertically on the side of the rice washing tank (10), The upper end side of the pipe body (43A) arranged in the vertical direction is connected to the suction device (41), and the lower end side of the pipe body (43A) arranged in the vertical direction is opened outside the apparatus. A rice washing device characterized by The lower drain pipe (13) for draining from the lower part of the said rice washing tank (10) is provided, and the lower end of the pipe body (43A) arrange | positioned at the said up-down direction joins the said lower drain pipe (13) And an opening / closing valve (16) for opening and closing the lower drain pipe (13) is provided at the junction (14), and an operating tool (57) for opening / closing the opening / closing valve (16) is provided in the vertical direction. A drive unit (58) for driving the operating tool (57) is provided above the pipe body (43A) and above the rice washing tank (10). The rice washing apparatus according to claim 1, wherein:

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