阅读说明：本技术 一种洗米装置 (Rice washing device ) 是由 郑芝云 胡玉新 李锦彬 孔进喜 陈崇得 李佳宏 于 2019-11-08 设计创作，主要内容包括：本发明提供的一种洗米装置,包括：送米装置,包括壳体,壳体上设有进米口和第一出米口,还包括设于壳体内部,适于将进米口处干米推送至第一出米口处的传送机构；驱动装置,适于驱动传送机构；风机,进风道连接壳体与风机。在壳体内设置传送机构,在实现米粒自动运输的同时,使米粒间发生摩擦和碰触,将米与米中的杂质等分离开,由风机设置在壳体上的进风道,将壳体内的杂质吸吹离,达到清洗的效果,这样设置一方面实现了干式清洗,避免了湿米残留难清洗的缺陷,并避免残留的湿米发生霉变后影响用户身体健康的问题,此外,可根据传送机构的运送速度和单位时间的运米量,对洗米量进行计算,实现自动量米的功能,且结构可靠,便于拆装。(The invention provides a rice washing device, which comprises: the rice conveying device comprises a shell, a conveying mechanism and a control mechanism, wherein the shell is provided with a rice inlet and a first rice outlet, and the conveying mechanism is arranged in the shell and is suitable for pushing dry rice at the rice inlet to the first rice outlet; a drive device adapted to drive the transport mechanism; and the air inlet channel is connected with the shell and the fan. Set up transport mechanism in the casing, when realizing the automatic transportation of grain of rice, make take place the friction between the grain of rice and touch, leave the impurity partition in rice and the rice, set up the air inlet duct on the casing by the fan, inhale the blow-off with the impurity in the casing, reach abluent effect, set up like this and realized dry-type washing on the one hand, the difficult abluent defect of wet rice residue has been avoided, and avoid remaining wet rice to take place to milden and rot the problem that the back influences user's healthy, in addition, can be according to transport mechanism's the speed of transport and unit interval's fortune rice volume, calculate the volume of washing rice, realize the function of automatic volume rice, and the structure is reliable, the dismouting of being convenient for.)

1. A rice washing device, comprising:

the rice feeding device comprises a shell (3), wherein a rice inlet (31) and a first rice outlet (32) are formed in the shell (3), and the rice feeding device also comprises a conveying mechanism which is arranged in the shell (3) and is suitable for pushing dry rice at the rice inlet (31) to the first rice outlet (32);

-drive means (5) adapted to drive said transfer mechanism;

the air inlet duct (11) is connected with the shell (3) and the fan (1).

2. Rice washing device according to claim 1, characterized in that the conveying means is a screw mechanism (4).

3. Rice washing device according to claim 2, characterized in that said housing (3) is provided with ventilation holes (33).

4. Rice washing device according to claim 3, characterized in that a filter screen (34) is arranged on the inner wall of the housing (3), the filter screen (34) having a largest dimension smaller than the smallest dimension of the rice.

5. The rice washing apparatus of claim 4, further comprising:

the rice stacking box (36) is connected to the shell (3) and is connected with the first rice outlet (32), and a second rice outlet (363) is formed in the rice stacking box (36);

the pressing plate (35) is connected to one side, far away from the rice inlet (31), of the rice stacking box (36) and provided with a groove facing away from the screw mechanism (4) in a concave mode, and the groove and the rice stacking box (36) form an accommodating space.

6. Rice washing device according to claim 5, characterized in that the second outlet (363) is arranged below the accommodation space with an axis being mutually perpendicular to the axis of the first outlet (32).

7. The rice washing apparatus of claim 6, further comprising: and one end of the air outlet channel (12) is arranged on the second rice outlet (363), and the other end of the air outlet channel is arranged on the fan (1).

8. Rice washing device according to claim 7, characterized in that a spoiler (351) is arranged in the receiving space and is inclined away from the outlet channel (12).

9. Rice washing device according to claim 8, characterized in that the inner wall of the rice stacking box (36) is provided with a positioning structure (361) connected with one end of the screw mechanism (4).

10. Rice washing device according to claim 9, characterized in that said positioning structure (361) is sleeved with an annular back pressure elastic seal (362).

11. Rice washing apparatus according to any one of claims 3-10, characterized in that said screw mechanism (4) comprises:

the rice measuring section (41) is arranged on one side, close to the rice inlet (31), of the screw mechanism (4), and the screw pitches of adjacent threads of the screw mechanism (4) on the rice measuring section (41) are uniform and equal.

12. Rice washing apparatus according to claim 11, characterized in that said screw mechanism (4) further comprises:

the rice washing section (42) is arranged in the middle of the screw mechanism (4) and corresponds to the vent hole (33), and the tooth-shaped height of the rice washing section (42) is lower than that of the rice measuring section (41);

and the rice stacking section (43) is arranged on one side, close to the rice outlet, of the screw mechanism (4).

13. A rice washing device according to claim 12, characterized in that the thread on the rice washing section (42) is flat and provided with bristles.

14. Rice washing device according to claim 13, characterized in that the thread ridge on the rice washing section (42) is arranged with a unidirectional inclination.

15. Rice washing device according to claim 11, characterized in that said driving means (5) are arranged outside said housing (3) near said rice inlet (31) and are fixedly connected to said rice metering section (41).

16. Rice washing device according to claim 7, characterized in that the air inlet duct (11) and the air outlet duct (12) are connected to the same motor of the fan (1).

17. Rice washing device according to claim 16, characterized in that a dust collecting device (2) is arranged between the air inlet duct (11) and the motor.

18. A rice washing device according to claim 1, characterized in that the rice inlet (31) is arranged at the top of the housing (3) near one side end and is fixedly connected with the rice storage bin (6).

19. Rice washing device according to claim 12, characterized in that an air inlet (37) is provided in the housing (3) at a position corresponding to the stacking section (43), and the air inlet (37) is a connection between the air inlet duct (11) and the housing (3).

Technical Field

The invention relates to the technical field of household appliances, in particular to a rice washing device.

Background

In daily life, the common electric rice cooker needs to be manually washed before cooking, not only consumes time and manpower, but also is easy to have the condition of incomplete washing, and the intelligent trend is realized for automatically washing rice of the rice cooker.

The existing automatic rice washing rice cooker adopts a water washing mode, but often rice grains can be retained in a rice washing bin after being wetted, so that residual wet rice is difficult to clean after being dried, and on the other hand, the residual wet rice is easy to mildew and influence the body health of a user. However, in the prior art, the automatic dry-cleaning rice-washing technology has poor cleaning effect, needs to measure rice by oneself, has various tasks, and greatly reduces the experience of users.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect of poor cleaning effect of dry type rice washing in the prior art, thereby providing a rice washing device.

The invention provides a rice washing device, comprising:

the rice conveying device comprises a shell, a conveying mechanism and a control mechanism, wherein a rice inlet and a first rice outlet are formed in the shell, and the conveying mechanism is arranged in the shell and is suitable for pushing dry rice at the rice inlet to the first rice outlet;

a drive device adapted to drive the transport mechanism;

and the air inlet duct is connected with the shell and the fan.

The conveying mechanism is a screw mechanism.

The housing is provided with a vent hole.

A filter screen is arranged on the inner wall of the shell, and the maximum size of the filter screen is smaller than the minimum size of rice.

The rice washing device further comprises: the rice stacking box is connected to the shell and is connected with the first rice outlet, and a second rice outlet is formed in the rice stacking box;

the pressing plate is connected to one side, far away from the rice inlet, of the rice stacking box and provided with a groove facing away from the screw mechanism, and the groove and the rice stacking box form an accommodating space.

The second rice outlet is arranged below the accommodating space, and the axis of the second rice outlet is mutually vertical to the axis of the first rice outlet in space.

And one end of the air outlet channel is arranged on the second rice outlet, and the other end of the air outlet channel is arranged on the fan.

A spoiler which is obliquely arranged towards the direction far away from the air outlet channel is arranged in the accommodating space.

And a positioning structure connected with one end of the screw rod mechanism is arranged on the inner wall of the rice stacking box.

The positioning structure is sleeved with an annular back pressure elastic sealing element.

The screw mechanism includes:

the rice measuring section is arranged on one side, close to the rice inlet, of the screw mechanism, and the screw pitches of adjacent threads of the screw mechanism on the rice measuring section are equal and uniform.

The screw mechanism further includes:

the rice washing section is arranged in the middle of the screw mechanism and corresponds to the vent hole, and the tooth-shaped height of the rice washing section is lower than that of the rice measuring section;

and the rice stacking section is arranged on one side, close to the rice outlet, of the screw mechanism.

The thread on the rice washing section is flat and is provided with brush hair.

The thread on the rice washing section is arranged in a one-way inclined way.

The driving device is arranged on the outer side of the shell close to the rice inlet and is fixedly connected with the rice measuring section.

The air inlet duct and the air outlet duct are connected to the same motor of the fan.

And a dust collecting device is arranged between the air inlet duct and the motor.

The rice inlet is arranged at the top of the end part close to one side of the shell and is fixedly connected with the rice containing bin.

An air inlet is arranged at the position, corresponding to the stacking section, on the shell, and the air inlet is the joint of the air inlet duct and the shell.

The technical scheme of the invention has the following advantages:

1. the invention provides a rice washing device, which comprises: the rice conveying device comprises a shell, a conveying mechanism and a control mechanism, wherein a rice inlet and a first rice outlet are formed in the shell, and the conveying mechanism is arranged in the shell and is suitable for pushing dry rice at the rice inlet to the first rice outlet; a drive device adapted to drive the transport mechanism; and the air inlet duct is connected with the shell and the fan.

Set up transport mechanism in the casing, when realizing the automatic transportation of grain of rice, make take place the friction between the grain of rice and touch, leave the impurity partition in rice and the rice, set up the air inlet duct on the casing by the fan, inhale the blow-off with the impurity in the casing, reach abluent effect, set up like this and realized dry-type washing on the one hand, the difficult abluent defect of wet rice residue has been avoided, and avoid remaining wet rice to take place to milden and rot the problem that the back influences user's health, on the other hand, can be according to transport mechanism's the speed of transport and unit interval's fortune rice volume, calculate the volume of washing rice, when realizing effective dry-cleaning function, realize the function of automatic meter measuring, and the structure is reliable, the dismouting of being convenient for.

2. According to the rice washing device provided by the invention, the filter screen is arranged on the inner wall of the shell, and the maximum size of the filter screen is smaller than the minimum size of rice.

The air inlet duct that sets up on the casing passes through the ventilation hole and inhales the air current to take away flying dust and filth in the casing, set up the filter screen and prevent on the one hand that external large granule impurity from entering the shell, on the other hand prevents that the grain of rice in the casing from flying away the rice washing device through ventilation hole or inlet air duct, avoids the grain of rice to fly into the fan and causes the part damage, and has reduced extravagant phenomenon and take place.

3. The rice washing device provided by the invention is characterized in that the spoiler obliquely arranged towards the direction far away from the air outlet channel is arranged in the accommodating space.

Because the air current of circulation can produce the unpredictable sinuous flow of direction in the accommodation space in the air outlet channel, lead to the rice that flows from first rice mouth and can not fall into the second immediately and go out a rice mouth, and can produce collision with the inner wall of accommodation space and with or gather, lead to going out a rice efficiency and reduce, also can lead to the condition such as cracked of grain of rice, the quality of rice has been reduced, it can shelter from partial air current that flows into the accommodation space to set up the spoiler, effectively weaken the gas flow in the accommodation space, make the grain of rice fall into the second rapidly and go out a rice mouth, and blow away and wash a rice device.

4. According to the rice washing device provided by the invention, the positioning structure is sleeved with the annular backpressure elastic sealing element.

The arrangement of the elastic sealing element ensures that the cleaned rice can pass through the positioning structure due to the deformation of the sealing element and has a blocking effect on the flying dust in the shell entering the containing structure.

5. The invention provides a rice washing device, a screw mechanism comprises: the rice measuring section is arranged on one side, close to the rice inlet, of the screw mechanism, and the screw pitches of adjacent threads of the screw mechanism on the rice measuring section are equal and uniform.

The dry rice falls into the rice metering section in the shell from the rice inlet, the screw mechanism driven by the driving device rotates to push the dry rice to the rice outlet, the screw pitches of the rice metering section are arranged equally, the dry rice with approximately the same volume can be pushed in unit time, the rice washing amount and the rice washing speed of the rice washing device can be accurately controlled, and the automatic rice metering function is realized.

6. According to the rice washing device provided by the invention, the rice washing section is arranged in the middle of the screw mechanism and is arranged corresponding to the vent hole, and the tooth-shaped height of the rice washing section is lower than that of the rice measuring section; and the rice stacking section is arranged on one side, close to the rice outlet, of the screw mechanism.

The tooth shape that the rice washing section set up is lower, for the rice washing structure of realizing the separation of rice and dust or impurity provides installation space, piles setting up of rice section and is being close to the position of rice outlet, is suitable for pushing away the rice that transports so far from the casing.

7. According to the rice washing device provided by the invention, the thread teeth on the rice washing section are arranged in a one-way inclined manner.

The screw thread that the slope set up is bigger to the area of contact of rice under the same tooth height condition, and when screw-thread mechanism moved, it was better to the promotion effect of rice, equally, the oblique brush hair of cutting on locating the screw thread has increased with the area of contact of rice, and the transportation rice volume is bigger, has promoted conveying efficiency, and the brush hair has effectively obtained the promotion to the cleaning performance of rice simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded view of a part of a rice washing apparatus provided in an embodiment of the present invention;

FIG. 2 is a left side view of a rice washing apparatus provided in an embodiment of the present invention;

FIG. 3 is a top view of a rice washing apparatus provided in an embodiment of the present invention;

FIG. 4 is a front view of a rice washing apparatus provided in an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a rice washing apparatus provided in an embodiment of the present invention;

FIG. 6 is a perspective view showing a partial structure of the rice washing apparatus shown in FIG. 1;

FIG. 7 is a front view schematically showing a part of the structure of the rice washing apparatus shown in FIG. 1

FIG. 8 is a schematic sectional view showing a partial structure of the rice washing apparatus shown in FIG. 7;

FIG. 9 is a schematic structural view of a housing of a rice washing apparatus provided in an embodiment of the present invention;

FIG. 10 is a schematic structural view of a screw mechanism of a rice washing apparatus provided in an embodiment of the present invention;

FIG. 11 is a schematic structural view of a rice stacking box of the rice washing apparatus provided in the embodiment of the present invention;

FIG. 12 is a schematic view showing a structure of a pressing plate of a rice washing apparatus provided in an embodiment of the present invention;

description of reference numerals:

1-a fan; 2-a dust collecting device; 3-a shell; 4-a screw mechanism; 5-a drive device; 6-rice containing bin; 11-an air inlet duct; 12-air outlet channel; 31-rice inlet; 32-a first rice outlet; 33-a vent hole; 34-a filter screen; 41-meter measuring section; 42-washing rice section; 43-stacking rice sections; 35-a press plate; 36-stacked rice boxes; 37-an air inlet; 351-spoiler; 361-a positioning structure; 362-a seal; 363-second rice outlet.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 12, the present embodiment provides a rice washing apparatus, comprising: the rice feeding device comprises a shell 3, a rice inlet 31 and a first rice outlet 32 are arranged on the shell 3, and the rice feeding device also comprises a conveying mechanism which is arranged in the shell 3 and is suitable for pushing dry rice at the rice inlet 31 to the first rice outlet 32; a drive device 5 adapted to drive the transport mechanism; the fan 1, the air inlet duct 11 connects the shell 3 and the fan 1.

Set up transport mechanism in casing 3, when realizing the automatic transportation of grain of rice, make take place the friction between the grain of rice and touch, equally divide the impurity in rice and the rice and leave, set up air inlet duct 11 on casing 3 by fan 1, inhale the blow-off with the impurity in the casing 3, reach abluent effect, dry-type washing has been realized on the one hand in the setting like this, the difficult abluent defect of wet rice residue has been avoided, and avoid remaining wet rice to take place to milden and rot the problem that influences user's healthy after, on the other hand, can be according to transport mechanism's the delivery rate and the fortune rice volume of unit interval, calculate the volume of washing rice, when realizing effective dry-cleaning function, realize the function of automatic metering rice, and the structure is reliable, the dismouting of being convenient for.

The conveying mechanism is a screw rod mechanism 4, the screw rod mechanism 4 can calculate the rice washing amount according to the screw pitch of the screw rod, the distance between the screw rod mechanism 4 and the shell 3 and the running speed of the screw rod, the function of automatically measuring rice is realized, the calculation is simple and reliable, the realization is convenient, and the conveying mechanism can also be a micro conveying belt, a roller mechanism and the like as a changeable implementation mode.

The housing 3 is provided with a vent hole 33. In this embodiment, the housing 3 is a column, and the ventilation holes 33 are arranged in the circumferential direction of the middle of the housing 3 and are arranged in rib-like uniform intervals.

A filter screen 34 is arranged on the inner wall of the shell 3, and the maximum size of the filter screen 34 is smaller than the minimum size of a meter. The filter 34 completely covers the vent 33, and in this embodiment, the filter 34 is cylindrical and is formed by fixedly connecting two semi-cylindrical filters.

The air inlet duct 11 that sets up on casing 3 inhales the air current through ventilation hole 33 to fly dust and filth in with casing 3 away, set up filter screen 34 and prevent that external large granule impurity from entering the shell on the one hand, on the other hand, prevent that the grain of rice in the casing 3 from flying away from the rice washing device through ventilation hole 33 or inlet air channel, avoid the grain of rice to fly into fan 1 and cause the part damage, and reduced the extravagant phenomenon and taken place.

Rice washing device still includes: the rice stacking box 36 is connected to the shell 3 and is connected with the first rice outlet 32, and a second rice outlet 363 is arranged on the rice stacking box 36; the pressing plate 35 is connected to one side of the rice stacking box 36 far away from the rice inlet 31 and is provided with a groove which is recessed back to the screw mechanism 4, and the groove and the rice stacking box 36 form an accommodating space. The second rice outlet 363 is arranged below the accommodating space, and the axis of the second rice outlet is perpendicular to the axis of the first rice outlet 32 in space.

The first rice outlet 32 and the second rice outlet 363 are separated by the arrangement of the accommodating space, the axis of the second rice outlet 363 is perpendicular to the axis of the first rice outlet 32 in space, the air outlet channel 12 and the air inlet channel 11 on the fan 1 are respectively separated from the connecting part of the shell 3, the phenomenon that air flowing out of the air outlet channel 12 flows into the air inlet channel 11 and becomes the circulation of air flow is avoided, and large air pressure towards the interior of the shell is caused to appear at the first rice outlet 32, so that large resistance exists when rice grains cannot be transported out of the second rice outlet 363 or transported, the arrangement improves the dry-cleaning efficiency, and the transportation of the rice grains is smoother.

One end of the air outlet channel 12 is arranged on the second rice outlet 363, and the other end is arranged on the fan 1. The fan 1 blows the airflow to the second rice outlet 363, and transports the rice grains falling to the second rice outlet 363 out of the rice washing device.

A spoiler 351 installed to be inclined toward a direction away from the air outlet 12 is disposed in the accommodating space.

Because the air current of circulation can produce the irreversible sinuous flow of unpredictable direction in the accommodation space in the exhaust passage 12, lead to the rice that flows out from first rice mouth 32 can not fall into second rice mouth 363 immediately, and can produce collision and or gathering with the inner wall of accommodation space, lead to a rice efficiency reduction, also can lead to the condition such as the cracked grain of rice, the quality of rice has been reduced, it can shelter from partial air current that flows into the accommodation space to set up spoiler 351, effectively weaken the gas flow in the accommodation space, spoiler 351's slope sets up, make the grain of rice can't stay on the board, and fall into second rice mouth 363 rapidly, and blow away and wash a rice device.

In this embodiment, the spoiler 351 is a single inclined straight plate, and as an alternative embodiment, the spoiler 351 may be provided in plurality or as an inclined curved plate.

The inner wall of the rice stacking box 36 is provided with a positioning structure 361 which is rotatably connected with one end of the screw mechanism 4, the middle part of the positioning structure 361 is provided with a groove suitable for accommodating the end part of the screw, and the positioning structure 361 is provided with an opening for accommodating rice grains.

An annular back pressure resilient seal 362 is sleeved over the locating structure 361. The edge of the seal 362 abuts the inner wall of the housing 3 and is deformed after being pressed by the rice grains. In the present embodiment, the elastic sealing member 362 is a silicone sheet.

The screw mechanism 4 includes: the rice measuring section 41 is arranged on one side, close to the rice inlet 31, of the screw mechanism 4, and the screw pitches of adjacent threads of the screw mechanism 4 on the rice measuring section 41 are uniform and equal.

The dry rice falls into the rice measuring section 41 in the shell 3 from the rice inlet 31, the screw mechanism 4 driven by the driving device 5 rotates to push the dry rice to the rice outlet, the screw pitches of the rice measuring section 41 are set to be equal, the dry rice with approximately the same volume can be pushed in unit time, the rice washing amount and the rice washing speed of the rice washing device can be accurately controlled, and the automatic rice measuring function is realized.

As an alternative embodiment, the pitch on the metering section 41 can be set periodically.

The screw mechanism 4 further includes: the rice washing section 42 is arranged in the middle of the screw mechanism 4 and corresponds to the vent hole 33, and the tooth-shaped height of the rice washing section 42 is lower than that of the rice measuring section 41; a rice stacking section 43 arranged on one side of the screw mechanism 4 close to the rice outlet. The rice washing section 42 is provided with a lower tooth shape to provide an installation space for a rice washing structure for separating rice from dust or impurities, and the rice stacking section 43 is arranged at a position close to the rice outlet and is suitable for pushing the rice transported to the rice outlet away from the shell 3.

The thread on the rice washing section 42 is flat and is provided with brush hair; the thread on the rice washing section 42 is arranged in a one-way inclined way. The screw thread that the slope set up is bigger to the area of contact of rice under the same tooth height condition, and when screw-thread mechanism moved, it was better to the promotion effect of rice, equally, the oblique brush hair of cutting on locating the screw thread has increased with the area of contact of rice, and the transportation rice volume is bigger, has promoted conveying efficiency, and the brush hair has effectively obtained the promotion to the cleaning performance of rice simultaneously.

In the present embodiment, the thread ridge on the rice washing section 42 is inclined toward the rice stacking section 43.

The driving device 5 is arranged outside the shell 3 close to the rice inlet 31 and is fixedly connected with the rice measuring section 41. In the present embodiment, the driving device 5 is a stepping motor.

The air inlet duct 11 and the air outlet duct 12 are connected to the same motor of the fan 1. Be provided with dust collecting device 2 between air inlet duct 11 and the motor, dust collecting device 2 is inside to be equipped with filter equipment, can will be like this in air inlet duct 11 with the impurity in the rice adsorb to dust collecting device 2 and the air current after the filtration blow to first rice mouth 32, guarantee that the air current of blowing in passes through filter equipment's filtration, avoided the secondary pollution of rice.

The rice inlet 31 is arranged at the top of the end part close to one side of the shell 3 and is fixedly connected with the rice containing bin 6. The rice containing bin 6 is arranged at the top of the rice washing device and is in screw connection with the rice washing device, and can fall into the shell 3 through gravity after rice is placed in, so that the step of placing the rice into the screw rod rice conveying device is simplified, and the rice washing efficiency is improved.

An air inlet 37 is arranged at the position of the shell 3 corresponding to the stacking section 43, and the air inlet 37 is the connecting position of the air inlet duct 11 and the shell 3.

The working process of the rice washing device is as follows:

rice is put into a rice containing bin 6, a fan 1 and a stepping motor are started, the rice in the rice containing bin 6 falls into a rice measuring section 41 of a screw mechanism 4 in a shell 3 through a rice inlet 31, the screw moves at a constant speed, the rice measuring section 41 moves the rice in the direction far away from the rice inlet 31 according to the uniform rice quantity, the rice grains are conveyed to a rice washing section 42, the rice grains are separated from dust adhered to the surface of the rice and silt debris in the rice by bristles on internal thread teeth of the rice washing section 42 and conveyed to a rice stacking section 43, the fan 1 operates, an air outlet arranged at the position corresponding to the rice stacking section 43 on the shell 3 sucks the air flow with the dust and the silt debris through an air vent 33 and a filter screen 34 on the wall of the shell 3 into an air inlet duct 11 under the action of negative pressure, a dust collecting device 2 is arranged between the air inlet duct 11 and the motor of the fan 1, the air flow filtered by the dust and the silt debris in the dust collecting device 2 is under the action, and the grains are blown to the second rice outlet 363 through the air outlet duct 12, and the grains fall to the position of the second rice outlet 363 through the sealing piece 362 and the accommodating space under the action of the screw rod and are blown away from the rice washing device by air flow, so that the washing is finished.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.