An electric rice cooker with automatic rice feeding and washing function

Abstract

The invention discloses an electric rice cooker for automatic rice feeding and washing. The electric rice cooker comprises a rice cooking unit, a rice washing unit and a rice storage unit. The rice washing unit is rotatably connected to and communicated with the rice cooking unit. The rice storage unit is connected to one side of the rice cooking unit. A disc-shaped rice transport mechanism for transferring rice to the rice washing unit is rotatably arranged in the rice storage unit. The electric rice cooker has a simple structure. The electric rice cooker arranges the rice storage unit on one side of the rice cooking unit to avoid tipping over due to stacking. The electric rice cooker realizes the function of automatic rice feeding by rotating the rice transport disc, ensuring that the amount of rice fed is continuous and quantitative. The amount of rice fed can be controlled by controlling the number of rotations of the rice transport disc. Compared with the existing method of rice transporting by a lead screw, the electric rice cooker does not need lubricating oil to lubricate related components, avoids the possibility of contaminating the rice in the rice box, and greatly improves the rice transport efficiency. The electric rice cooker arranges a third driving mechanism in the stirring rod to control the piston to open or block the rice leaking port, which saves space and avoids contact with the rice, making it more hygienic.

Description

Technical Field

[0001] The invention relates to the field of household appliance design, and in particular to an electric rice cooker with automatic rice feeding and washing. Background Art

[0002] Washing and cooking rice is a time-consuming and laborious task. The cooking process is often the longest process for preparing dinner for those who are responsible for housework. The time when many office workers can eat when they return home is determined by the cooking time, and the process of washing rice is the process of washing away the sand, debris and sediment in the rice. However, the principle of some pre-set rice cookers on the market is that the user soaks the pre-washed rice in water and cooks it at a scheduled time, which brings two problems: first, long-term soaking will cause the loss of nutrients in the rice; second, due to unexpected reasons, the user may not return home at the scheduled time. If there is a delay, the cooked rice cannot be eaten in time, and long-term heating affects the taste.

[0003] In addition, the use of cold tap water when washing rice in winter is one of the most direct factors leading to knuckle pain and frostbite in housewives. Therefore, it can be seen that the existing rice cookers on the market can no longer meet the needs of consumers, and the market is in urgent need of rice cookers with more functions and easier operation.

[0004] There are not many electric rice cookers with automatic rice washing function currently on the market. For example, "Fan Xiaoer" uses a circulating rice washing method. This design results in a large amount of water used when washing rice.

[0005] In summary, using a fully automatic rice-feeding and rice-washing rice cooker instead of a traditional rice cooker completely frees people from the process of cooking rice, and allows them to set the ideal amount of rice, taste and other parameters on their mobile phones. This saves time for people who are short on time, and is fast, efficient, safe and hygienic.

[0006] In the existing technology, there are already rice cookers with automatic rice washing and automatic rice feeding functions, but they all have various defects. For example, in the patent with application number 201820781128.X, the stirring rod involved is flat, which makes it difficult to stir all the rice, which makes the rice washing process incomplete, and the patent has a fatal defect that there are fine parts such as screws and nuts in the parts that are in direct contact with the rice. Such a design may cause the screws and nuts to fall off and cause accidental ingestion. For example, in the patent with application number 201620740995.X, the rice feeding method of the rice feeding device involved is to set a rice outlet electromagnet at the rice outlet of each rice bin, and such a design leads to an increase in the number of electromagnets. For example, in the patent with application number 201911113894.4, multiple stirring rods are used for rotating stirring, which will inevitably lead to dead corners that cannot be taken into account and too many parts. In addition, this technology does not have a device for automatic rice feeding and storage, and the cooking process is not completely free from human intervention. Summary of the invention

[0007] The invention aims to provide an electric rice cooker with automatic rice feeding and rice washing functions, which has a simple structure, is reasonable and compact, and is suitable for many occasions such as home use and public use.

[0008] The present invention is achieved through the following technical solutions:

[0009] An automatic rice-feeding and rice-washing electric rice cooker, characterized in that it comprises a rice-cooking unit, a rice-washing unit and a rice-storing unit, wherein the rice-washing unit is rotatably connected to and communicated with the rice-cooking unit, the rice-storing unit is connected to one side of the rice-cooking unit, and a disc-shaped rice-transporting mechanism for transferring the stored rice to the rice-washing unit is rotatably arranged in the rice-storing unit. The rice-washing unit is rotatably connected to the rice-cooking unit so that the rice-washing unit can be rotated backward after the rice is cooked, so as to facilitate the scooping of rice from the rice-cooking unit; the rice-storing unit is connected to one side of the rice-cooking unit so as to avoid the rice cooker being stacked too high, thereby causing an unstable center of gravity and causing a rollover; the disc-shaped rice-transporting mechanism can replace the traditional screw rice-transporting mechanism, and the mechanism does not require lubricating oil to lubricate related components, thereby avoiding the possibility of contaminating the rice in the rice-storing unit or contaminating the rice during transportation, and greatly improving the rice-transporting efficiency.

[0010] Further, the rice storage unit includes a rice storage box, a partition, a first rice guide tube and a first driving device for driving the rice transport mechanism to rotate, the partition is connected to the rice storage box and its internal space is divided into a rice storage part and a mounting part, the first driving device is connected to the partition and is located in the mounting part, the rice transport mechanism is rotatably connected to the partition and is located in the rice storage part, the partition is provided with a rice guide port connected to the rice transport mechanism, the rice guide port is lower than the highest point of the rice transport mechanism, one end of the first rice guide tube is connected to the rice guide port, and the other end is connected to the rice washing unit, for guiding the rice in the rice transport mechanism to the rice washing unit, the rice storage box is hinged with a rice box cover, and the rice storage box is provided with a fixing mechanism for fixing it to the rice cooking unit. Specifically, the first driving device and the rice transport mechanism are both connected with gears through key pins, and the two gears are driven by a chain, and the first driving device drives the rice transport mechanism to rotate in the partition (rice storage part) for rice transportation through gears and chains. The position of the rice guide port is slightly lower than the highest point on the rice transport mechanism. When the disc-shaped rice transport mechanism transports rice from the rice storage part to the highest point, the rice slides out of the rice transport mechanism from the rice guide port under the action of gravity, and then is transmitted to the rice washing unit through the first rice guide tube. The rice box cover is hinged on the top of the rice storage box for closing the rice storage part. On the one hand, the rice box cover can prevent external dust from entering the rice storage part, and on the other hand, rice can be added from here. Optionally, the rice box cover can be closed together with the mounting part, or a separate cover can be provided for closing the mounting part. The rice storage box (rice storage unit) can be fixed to the rice cooking unit by the fixing mechanism. In addition, it can be disassembled when automatic rice feeding is not required, and only the rice washing unit and the rice cooking unit are retained, and rice is manually added to the rice washing unit, which is more flexible and convenient in design.

[0011] Further, the number of the fixing mechanisms is two, and they are respectively located on both sides of the rice storage box. The fixing mechanisms include a fixing block, a fixing plate and a tightening device. The fixing block is rotatably connected to one side of the rice storage box. A mounting groove is provided in the fixing block. One end of the fixing plate is rotatably connected to the mounting groove, and the other end extends out of the mounting groove. One end of the tightening device is fixedly connected to the mounting groove, and the other end abuts against the fixing plate. A slot is provided on the rice cooking unit. The fixing plate is inserted into the slot and is tightly connected to the side wall of the slot under the action of the tightening device. The tightening device is a spring. After the fixing block is inserted into the slot, under the action of the spring, the fixing block is pressed against the side wall of the slot. After the fixing block is pressed, the friction between the fixing block and the slot becomes larger, which can prevent the fixing block from detaching from the slot, that is, the rice storage box (rice storage unit) can be fixed on the rice cooking unit.

[0012] Furthermore, the rice transport mechanism includes a rice transport plate and a shielding plate for preventing rice from falling off the rice transport plate during rice transport, the shielding plate is fixedly connected to the partition, the rice transport plate is rotatably connected to the shielding plate and is located between the partition and the shielding plate, a plurality of rice transport teeth are arranged on the circumferential surface of the rice transport plate, the ends of the rice transport teeth are provided with a bending portion consistent with the rotation direction of the rice transport plate, the size of the bending portion is smaller than the gap between two adjacent rice transport teeth, the gap between the rice transport plate and the partition and the shielding plate is smaller than the particle size of the rice, and the rice guide port guides the rice from the gap between the rice transport teeth to the rice washing unit. The shielding plate is fixedly connected to the partition to ensure that its position is fixed. Specifically, a plurality of rice transport teeth are arranged at equal intervals on the side of the rice transport plate. This design can be used as a transport device to transport rice on the one hand, and also has the function of a metering device on the other hand (the amount of rice transported per rotation is fixed, and the amount of rice transported to the rice washing unit can be controlled by the number of rotations of the rice transport plate. This design can save the device for weighing the amount of rice, and simplifies the structure to a certain extent). The bending part is designed at the end of the rice transport tooth to prevent the rice from slipping from the end of the rice transport tooth during the rice transportation process. Specifically, during the actual rice transportation, when the rice transport plate rotates until the gap between the rice transport teeth docks with the rice guide port, the transported rice slides from the gap between the rice transport teeth through the rice guide port into the first rice guide tube under the action of gravity, and then slides into the rice washing unit through the first rice guide tube.

[0013] Further, the first driving device is a stepping motor, and a monitoring device for monitoring the amount of rice is provided in the rice storage portion. The monitoring device is an infrared sensor. The amount of rice in the rice storage box (rice storage portion) is monitored in real time by the infrared sensor, and a rice adding signal is issued when the amount of rice is insufficient. The bottom of the rice storage portion can be designed as a conical structure to concentrate the rice for easy transportation. Optionally, the monitoring device can be arranged on a fixed shielding plate, or on the rice storage box, to ensure that the position of the monitoring device does not move.

[0014] Furthermore, the rice washing unit includes a rice washing bin shell, a rice washing bin cover, a rice washing bin, a cleaning device, a piston, a drainage device, a second rice guiding tube, a stirring device for stirring rice, and a second driving device for driving the stirring device to rotate; the rice washing bin shell is rotatably connected to the rice cooking unit via a rotating load-bearing column; a main control panel is provided on the rice washing bin shell; the rice washing bin cover is hinged on the rice washing bin shell for closing the rice washing bin shell; the rice washing bin is provided inside the rice washing bin shell; a drainage port for discharging rice washing water and a rice leakage port for connecting to the rice cooking unit are provided at the bottom of the rice washing bin; a filter is provided in the drainage port The filter screen has an aperture smaller than the particle size of the rice, the drain port is connected to the drain device, the second drive device is connected to the rice washing bin housing, one end of the stirring device is connected to the second drive device, and the other end extends into the rice washing bin, the stirring device is provided with a third drive mechanism for driving the piston to open and close in the rice leaking port, the cleaning device is connected to the rice washing bin housing and injects water into the rice washing bin, the second rice guide tube is connected to the rice washing bin housing, one end of the second rice guide tube extends into the rice washing bin, and the other end is connected to the first rice guide tube, and the second rice guide tube is lower than the first rice guide tube. Specifically, the filter screen is used to prevent the rice from being discharged from the rice washing bin during the drainage process. The opening or closing of the rice leaking port can be controlled by controlling the piston to open and close in the rice leaking port through the third drive mechanism, the piston blocks the rice leaking port when the rice is washed, and the rice leaking port is opened after the washing is completed, so that the rice falls from the rice washing bin into the rice cooking unit. The second rice guide tube is designed to be lower than the first rice guide tube so that under the action of gravity, rice naturally slides from the first rice guide tube into the second rice guide tube and then into the rice washing bin. When the rice storage unit is not in use, the rice washing bin cover is opened, rice is manually added to the rice washing bin, and then the rice washing operation is performed. After the rice washing unit is rotated, the second rice guide tube is separated from the first rice guide tube.

[0015] Further, the rice washing bin is funnel-shaped, the drainage device is a water pump, the second drive device is a worm gear motor, the stirring device is a stirring paddle, the stirring paddle includes a stirring rod and a spiral stirring blade arranged thereon, one end of the stirring rod is connected to the second drive device, and the other end extends to the bottom of the rice washing bin, the stirring rod is a hollow structure, the interior of the stirring rod is provided with the third driving mechanism, the cleaning device includes a sprinkler bracket and an annular automatic sprinkler installed thereon, the sprinkler bracket is connected to the shell of the rice washing bin, and the annular automatic sprinkler is used to sprinkle water on the side wall of the rice washing bin. Specifically, the rice leakage port is arranged at the bottom of the funnel-shaped rice washing bin and vertically downward, and the drainage port is arranged on the side wall of the funnel-shaped rice washing bin near the rice leakage port and horizontally to the left. The spiral stirring blade is close to the inner wall of the funnel-shaped rice washing bin, and the rice in the rice washing bin can be fully stirred to achieve a better cleaning effect. The annular automatic sprinkler can add water into the rice washing bin to wash the rice during cleaning, and after the cleaning is completed, the residual rice grains attached to the side wall of the rice washing bin can be flushed into the rice cooking unit, and water can be injected into the rice cooking unit for cooking the rice.

[0016] Furthermore, the third driving mechanism includes a T-shaped adjusting rod and an electromagnet for driving the T-shaped adjusting movement, the electromagnet is fixedly connected to the inside of the stirring rod, the limit block is fixedly connected to the inside of the stirring rod and is located below the electromagnet, the T-shaped adjusting rod is movably connected in the stirring rod and is located between the electromagnet and the limit block, the limit block is used to prevent the T-shaped adjusting rod from falling off, and the piston is connected to the T-shaped adjusting rod. Specifically, the T-shaped adjusting rod is made of magnetic material, and the T-shaped adjusting rod is controlled to move up and down in the stirring rod between the electromagnet and the limit block by controlling the electromagnet to gain and lose power, thereby driving the piston to open or block the rice leaking port. The third driving mechanism is arranged inside the stirring rod. This design can save space on the one hand, and avoid contact with rice grains on the other hand, which is more hygienic.

[0017] Furthermore, the rice cooking unit comprises an inner pot, an inner pot cover, a sealing ring, a rice cooking shell for installing the inner pot, a heating plate for heating the inner pot, and a power source, wherein the power source is connected to the heating plate, the heating plate is installed in the rice cooking shell, the heating plate is sleeved on the inner pot, the inner pot cover is used to seal the inner pot, the sealing ring is connected between the inner pot and the inner pot cover, and is used to seal the gap between the inner pot cover and the inner pot, the inner pot cover is provided with a through hole for connecting the rice leaking port, the rice cooking shell is provided with a connecting hole at a corner, the rice washing bin shell is provided with the same connecting hole, one end of the rotating load-bearing column is plugged into the connecting hole, and the other end is plugged into the connecting hole in the rice washing bin shell, the rice cooking shell is provided with a card slot, and the rice cooking shell is also provided with a notch for conveniently taking out the inner pot. The sealing ring can prevent heat loss during cooking, improve cooking efficiency, and is also used for heat preservation after the rice is cooked. Specifically, when the rice needs to be served after it is cooked, the rice washing bin shell is lifted up and then rotated, the inner pot cover and the sealing ring can be taken out, and then the rice can be served. The card slots are arranged on both sides of the rice cooking shell and cooperate with the fixing plate to connect the rice storage box to the rice cooking shell. The notches are arranged on the rice cooking shell opposite to each other and close to the inner pot. This design makes it easy to take the inner pot out of the rice cooking shell and to clean the inner pot after the meal.

[0018] Furthermore, the rotating load-bearing column is a hollow structure, the rotating load-bearing column is connected to the drainage device, and the connecting hole is provided with a water outlet connected to the outside. This design allows the drainage of the rice washing part to be connected to the outside through the rotating load-bearing column, the water pipes are bundled to make the internal space organized, and the deadweight of the rotating load-bearing column is effectively reduced. An external water pipe can be connected to the water outlet to guide the rice washing water into the sewer.

[0019] Beneficial effects of the present invention:

[0020] The invention has a simple structure, is compact and reasonable, and is suitable for many occasions such as home and public use. The invention arranges the rice storage unit on one side of the rice cooking unit, thereby avoiding the problem of overturning caused by unstable center of gravity due to stacking. The modular design makes the product of the invention applicable to a wider range of people, and users can freely combine according to different needs. When the automatic rice feeding function is not needed, the rice storage unit can be removed according to the situation.

[0021] (2) The present invention uses a method of driving the rice transport plate to rotate to realize the function of automatically feeding rice, thereby ensuring that the amount of rice fed is continuous and quantitative. The rotation speed and the number of revolutions of the rice transport plate can be controlled by the main control board to control the amount of rice fed. Compared with the existing method of transporting rice by a lead screw, this solution does not require lubricating oil to lubricate related components, thus avoiding the possibility of contaminating the rice in the rice box or contaminating the rice during transportation, and greatly improving the efficiency of rice transportation;

[0022] (3) The present invention configures the stirring rod to be a hollow structure, and arranges a third driving mechanism in the stirring rod to control the piston to open or block the rice leakage port, thereby saving space in the rice washing bin and avoiding contact with the rice, which is safer and more hygienic.

[0023] (4) The present invention sets the rotating load-bearing column as a hollow structure, and the drainage of the rice washing part is discharged to the outside through the rotating load-bearing column. The water pipes are bundled to make the internal space organized and effectively reduce the dead weight of the rotating load-bearing column. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is an overall schematic diagram of the present invention;

[0026] Figure 2 A top view of a rice storage unit in the present invention;

[0027] Figure 3 It is a structural schematic diagram of the rice transport mechanism in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the fixing mechanism in the present invention;

[0029] Figure 5 is a cross-sectional view of the rice washing unit in the present invention;

[0030] Figure 6 is a top view of the rice cooking unit of the present invention;

[0031] Figure 7 It is an explosion schematic diagram of the rice cooking unit in the present invention;

[0032] Figure 8 It is a structural schematic diagram of the rotating load-bearing column in the present invention.

[0033] In the figure: 1 a rice cooking unit, 2 a rice washing unit, 3 a rice storage unit, 4 a rice transport mechanism, 5 a rice storage box, 6 a partition, 7 a first driving device, 8 a first rice guide tube, 9 a rice box cover, 10 a fixing mechanism, 11 a fixing block, 12 a fixing plate, 13 a tightening device, 14 a mounting groove, 15 a card slot, 16 a rice storage unit, 17 a mounting unit, 18 a monitoring device, 19 a rotating load-bearing column, 20 a rice washing bin shell, 21 a rice washing bin cover, 22 a rice washing bin, 23 a cleaning device, 24 a stirring device, 25 a drainage device, 26 a piston, 27 a second rice guide tube, 28 a second driving mechanism, 29 a main control board, 30 a drainage port, 31 a rice leakage port, 32 a filter screen, 33 a sprinkler bracket, 34 an annular automatic sprinkler, 35 T-shaped adjusting rod, 36 electromagnet, 37 limit block, 38 inner pot, 39 inner pot cover, 40 sealing ring, 41 rice transport plate, 42 baffle plate, 43 rice transport teeth, 44 bending part, 45 rice cooking shell, 46 heating plate, 47 power supply, 48 motor connector, 61 rice guide port, 240 stirring rod, 241 spiral stirring blade, 390 through hole, 450 connecting hole, 451 notch, 4501 water outlet. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0035] like Figure 1 As shown, an automatic rice-feeding and rice-washing electric rice cooker comprises a rice-cooking unit 1, a rice-washing unit 2 and a rice-storing unit 3. The rice-washing unit 2 is rotatably connected to and communicated with the rice-cooking unit 1 via a rotating load-bearing column 19. The rice-storing unit 3 is connected to one side of the rice-cooking unit 1 via a fixing mechanism 10. A disc-shaped rice-transporting mechanism 4 for transferring the stored rice to the rice-washing unit 2 is rotatably arranged in the rice-storing unit 3.

[0036] like Figure 5As shown, the rice washing unit 2 includes: a rice washing bin housing 20, a rice washing bin cover 21, a rice washing bin 22, a cleaning device 23 (the cleaning device 23 includes a sprinkler bracket 33 and a ring-shaped automatic sprinkler 34 fixed thereon), a piston 26, a water pump 25, a second rice guide tube 27, a stirring device 24 for stirring rice (the stirring device 24 includes a stirring rod 240 and a spiral stirring blade 241) and a second driving mechanism 28 for driving the stirring device 24 to rotate (the stirring device 24 is connected to the second driving mechanism 28 through a motor connecting member 48). 8 (the motor connecting member 48 is connected to the rotating shaft of the second driving mechanism 28), the rice washing bin housing 20 is rotatably connected to the rice cooking housing 45 by rotating the load-bearing column 19, a main control board 29 is arranged on the rice washing bin housing 20, a rice washing bin cover 21 is hinged on the rice washing bin housing 20 for closing the rice washing bin housing 20, the rice washing bin 22 is funnel-shaped and arranged inside the rice washing bin housing 20, and a drainage port 30 for discharging rice washing water is horizontally arranged on the side wall at the bottom of the rice washing bin 22 (the drainage port 30 is connected to the water pump 25 to discharge the rice washing water out of the rice washing bin 22 A filter screen 32 is provided in the drain outlet 30, and the aperture of the filter screen 32 is smaller than the particle size of the rice to prevent the rice from being discharged from the rice washing bin 22 through the drain outlet 30). A rice leakage port 31 connected to the inner pot 38 is vertically provided at the bottom of the funnel-shaped rice washing bin 22 (the washed rice enters the inner pot 38 from the rice leakage port 31 for cooking). The second driving mechanism 28 is connected to the rice washing bin housing 20. One end of the stirring device 24 is connected to the second driving mechanism 28, and the other end extends to the bottom of the rice washing bin 22 (near the rice leakage port 31). The piston 26 is movably connected to the rice leakage port 31. The rice washing port 31 is in the rice washing bin 22, and a third driving mechanism is arranged on the stirring device 24 for driving the piston 26 to make an opening and closing movement in the rice leakage port 31. The annular automatic sprinkler 34 is connected to the rice washing bin shell 20 and injects water into the rice washing bin 22 toward the side wall of the rice washing bin 22. The second rice guide tube 27 is connected to the rice washing bin shell 20. One end of the second rice guide tube 27 extends into the rice washing bin 22, and the other end is connected to the first rice guide tube 8. The second rice guide tube 27 is lower than the first rice guide tube 8. Under the action of gravity, the rice in the first rice guide tube 8 is introduced into the rice washing bin 22 for cleaning.

[0037] like Figures 2 to 4As shown, the rice storage unit 3 includes: a rice storage box 5, a partition 6, a first rice guiding tube 8 and a stepping motor 7 for driving the rice transport mechanism 4 to rotate. The partition 6 is fixedly connected to the interior of the rice storage box 5 and its internal space is divided into a rice storage portion 16 and a mounting portion 17. The stepping motor 7 is fixedly connected to the partition 6 and is located in the mounting portion 17 (the rotating shaft of the stepping motor 7 is connected to the gear through a key pin). The rice transport mechanism 4 includes: a rice transport plate 41 (a plurality of rice transport teeth 43 are arranged at equal distances on the side of the rice transport plate 41, and a bending portion 44 is arranged at the end of the rice transport tooth 43, and the bending portion 44 can prevent rice from falling off during the rice transport process) and a baffle plate 42, the rice transport plate 41 is rotatably connected to the partition 6 and is located in the rice storage part 16, the baffle plate 42 is fixedly connected to the partition 6, and the monitoring device (i.e., infrared sensor) 18 is fixedly connected to the baffle plate 42 (the monitoring device 18 is used to monitor the amount of rice in the rice storage part 16, and sends a rice adding signal when the amount of rice is insufficient), the rice transport plate 41 is located between the partition 6 and the baffle plate 42, and the gap between the rice transport plate 41 and the partition 6 and the baffle plate 42 is smaller than the particle size of the rice grains, so that the rice can be prevented from leaking from the gap during the rice transport process. The partition plate 6 is provided with a rice guide opening 61 which is connected to the gap between the rice transport teeth 43 on the rice transport plate 41. The rice guide opening 61 is lower than the highest point of the rice transport plate 41 (so that the rice can slide into the rice guide opening 61 from the gap between the rice transport teeth 43 under the action of gravity). One end of the first rice guide tube 8 is connected to the rice guide opening 61, and the other end is connected to the rice washing unit 2, so as to guide the rice in the rice transport plate 41 into the rice washing bin 22. A rice box cover plate 9 (used to close the rice storage part 16 or close it together with the mounting part 17) is hinged on the rice storage box 5, and a fixing mechanism 10 for fixing it on the rice cooking unit 1 is provided on the rice storage box 5.

[0038] like Figures 6-7 As shown, the rice cooking unit 1 includes: an inner pot 38, an inner pot cover 39, a sealing ring 40, a rice cooking shell 45, a heating plate 46 and a power supply 47. The power supply 47 is connected to the heating plate 46 to provide electric energy to the heating plate 46. The heating plate 46 is installed in the rice cooking shell 45. The heating plate 46 is sleeved on the inner pot 38 to provide the inner pot 38 with the energy required for cooking. The inner pot cover 39 is placed on the inner pot 38 to close the opening of the inner pot 38. The sealing ring 40 is connected between the inner pot 38 and the inner pot cover 39 to close the gap between the inner pot cover 39 and the inner pot 38 (to prevent heat loss and provide The rice cooking shell 45 has a through hole 390 for connecting to the rice outlet 31, and the rice cooking shell 45 has a connecting hole 450 at a corner. The rice washing bin shell 20 has the same connecting hole. One end of the rotating load-bearing column 19 is plugged into the connecting hole 450, and the other end is plugged into the connecting hole in the rice washing bin shell 20. The rice cooking shell 45 has a card slot 15, and the rice cooking shell 45 has a notch 451. The inner pot 38 can be more conveniently taken out from the rice cooking shell 45 from the notch 451, which is convenient for cleaning after meals.

[0039] like Figure 4 As shown, the fixing mechanism 10 includes: a fixing block 11, a fixing plate 12 and a spring 13. The fixing block 11 is rotatably connected to both sides of the rice storage box 5. A mounting groove 14 is provided on the side of the fixing block 11. One end of the fixing plate 12 is rotatably connected to the mounting groove 14, and the other end extends out of the mounting groove 14. One end of the tightening device (spring) 13 is fixedly connected to the mounting groove 14, and the other end abuts against the fixing plate 12. The fixing plate 12 is inserted into the card slot 15. Under the action of the tightening device 13, one end of the fixing plate 12 is tightened against the side wall of the card slot 15. When the fixing plate 12 is pressed against the side wall of the card slot 15, the friction between the fixing plate 12 and the card slot 15 becomes larger, and it is not easy to disengage, so that the rice storage box 5 can be fixed on the rice cooking shell 45.

[0040] Preferably, the stirring rod 240 is a hollow structure (such as Figure 5 As shown), the third driving mechanism includes: a T-shaped adjusting rod 35 and an electromagnet 36, the electromagnet 36 is fixedly connected to the inside of the stirring rod 240, and a limit block 37 is also provided in the stirring rod 240, and the limit block 37 is located below the electromagnet. The T-shaped adjusting rod 35 is movably connected to the inside of the stirring rod 240 and is located between the electromagnet 36 and the limit block 37. The limit block 37 is used to prevent the T-shaped adjusting rod 35 from falling off. The piston 26 is connected to the T-shaped adjusting rod 35, and the T-shaped adjusting rod 35 is driven to move up and down in the stirring rod 240 by controlling the electromagnet 36 to gain or lose power, thereby driving the piston 26 to open or block the rice leaking port 31. Preferably, the rotating load-bearing column 19 is a hollow structure (such as Figure 8 As shown in the figure, the rotating load-bearing column 19 is connected to the drainage device (water pump) 25, so that the drainage of the rice washing part is discharged to the outside through the rotating load-bearing column 19, the water pipes are bundled to make the internal space organized, and the dead weight of the rotating load-bearing column 19 is effectively reduced. The connection hole 450 is provided with a water outlet 4501 connected to the outside, and an external water pipe can be connected to the water outlet 4501 to guide the rice washing water into the sewer.

[0041] In actual use: after the main control board 29 receives the signal for starting rice cooking, the electromagnet 36 first pushes the T-shaped adjusting rod 35 downward to drive the piston 26 to block the rice leaking port 31, and then controls the first driving device (using a stepping motor) 7 to rotate, driving the rice transporting plate 41 to start rotating, and transporting the rice in the rice storage portion 16 to the rice guide port 61 on the partition 6 through the rice transporting teeth 43. At this time, under the action of gravity, the rice slides from the gap between the rice transporting teeth 43 to the rice guide port 61, and then is introduced into the rice washing bin 22 through the first rice guide tube 8 and the second rice guide tube 27 (it can be adjusted as needed). The amount of rice added to the rice washing bin can be controlled by setting the number of revolutions of the rice transport plate 41). After the rice feeding process is completed, the annular automatic sprinkler 34 is turned on to add water to the rice washing bin 22. After the set sprinkling time, the annular automatic sprinkler 34 stops sprinkling water, and the second driving mechanism (worm gear motor) 28 drives the stirring device 24 to rotate to stir and wash the water-rice mixture in the rice washing bin 22. After the washing is completed, the drainage device (water pump) 25 is turned on to pump out the water in the rice washing bin 22, and the rice washing water is discharged from the rice washing bin 22 by rotating the load-bearing column 19 and the water outlet 4501. Then the electromagnet 36 drives the T-shaped adjusting rod 35 and the piston 26 to move upwards, and the rice leaking port 31 is opened. At this time, the washed rice falls into the inner container 38 from the rice leaking port 31 through the through hole 390 on the inner container cover 39. At the same time, the annular automatic sprinkler 34 is turned on to sprinkle water on the side wall of the rice washing bin 22, and the residual rice grains attached to the wall of the rice washing bin 22 are flushed into the inner container 38, and the amount of water required for cooking is injected into the inner container 38. Then the electromagnet 36 pushes the piston 26 to block the rice leaking port 31, and the power supply 47 is energized to the heating plate 46 to start the cooking process. After the rice is cooked, it is transferred to the heat preservation mode. When eating, the rice washing unit 2 is lifted up and turned aside, and then the inner container cover 39 and the sealing ring 40 are removed to start serving rice. After the meal, the inner container 38 can be taken out from the rice cooking shell 45 through the notch 451 and cleaned.

[0042] The above are preferred embodiments of the present invention and are only used to explain the present invention, not to limit the present invention. Any obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An electric rice cooker with automatic rice feeding and washing, characterized in that: The rice washing unit (2) comprises a rice cooking unit (1), a rice washing unit (2) and a rice storage unit (3), wherein the rice washing unit (2) is rotatably connected to the rice cooking unit (1) and communicated therewith, the rice storage unit (3) is connected to one side of the rice cooking unit (1), and a disc-shaped rice transport mechanism (4) for transporting stored rice to the rice washing unit (2) is rotatably arranged in the rice storage unit (3); The rice transport mechanism (4) comprises a rice transport plate (41) and a shielding plate (42) for preventing rice from falling off the rice transport plate (41) during the rice transport process, the shielding plate (42) being fixedly connected to the partition plate (6), the rice transport plate (41) being rotatably connected to the shielding plate (42) and being located between the partition plate (6) and the shielding plate (42), a plurality of rice transport teeth (43) being arranged on the circumferential surface of the rice transport plate (41), the ends of the rice transport teeth (43) being arranged with a bending portion (44) which is consistent with the rotation direction of the rice transport plate (41), the size of the bending portion (44) being smaller than the gap between two adjacent rice transport teeth (43), the gap between the rice transport plate (41) and the partition plate (6) and the shielding plate (42) being smaller than the particle size of the rice, and the rice guide port (61) guiding the rice from the gap between the rice transport teeth (43) to the rice washing unit (2); The rice washing unit (2) comprises a rice washing bin shell (20), a rice washing bin cover (21), a rice washing bin (22), a cleaning device (23), a piston (26), a drainage device (25), a second rice guide tube (27), a stirring device (24) for stirring rice, and a second driving device (28) for driving the stirring device (24) to rotate. The rice washing bin shell (20) is rotatably connected to the rice cooking unit (1) via a rotating load-bearing column (19). A main control panel (29) is provided on the rice washing bin shell (20). The rice washing bin cover (21) is hingedly connected to the rice washing bin shell (20) for closing the rice washing bin shell (20). The rice washing bin (22) is arranged inside the rice washing bin shell (20). A drainage port (30) for discharging rice washing water and a rice drain port (31) for communicating with the rice cooking unit (1) are provided at the bottom of the rice washing bin (22). The drainage port (30) is connected to the rice washing bin shell (20). A filter screen (32) is provided in the rice washing bin (30), the aperture of the filter screen (32) is smaller than the particle size of rice, the drainage port (30) is connected to the drainage device (25), the second driving device (28) is connected to the rice washing bin housing (20), one end of the stirring device (24) is connected to the second driving device (28), and the other end extends into the rice washing bin (22), and the stirring device (24) is provided with a third driving mechanism for driving the piston (26) to perform opening and closing movements in the rice leaking port (31); the cleaning device (23) is connected to the rice washing bin housing (20) and injects water into the rice washing bin (22), the second rice guide tube (27) is connected to the rice washing bin housing (20), one end of the second rice guide tube (27) extends into the rice washing bin (22), and the other end is connected to the first rice guide tube (8), and the second rice guide tube (27) is lower than the first rice guide tube (8); The rice washing bin (22) is funnel-shaped, the drainage device (25) is a water pump, the second drive device (28) is a worm gear motor, the stirring device (24) is a stirring paddle, the stirring paddle comprises a stirring rod (240) and a spiral stirring blade (241) arranged thereon, one end of the stirring rod (240) is connected to the second drive device (28), and the other end extends to the bottom of the rice washing bin (22), the stirring rod (240) is a hollow structure, and the third driving mechanism is arranged inside the stirring rod (240), the cleaning device (23) comprises a sprinkler bracket (33) and an annular automatic sprinkler (34) mounted thereon, the sprinkler bracket (33) is connected to the rice washing bin housing (20), and the annular automatic sprinkler (34) is used to sprinkle water on the side wall of the rice washing bin (22); The third driving mechanism comprises a T-shaped adjusting rod (35) and an electromagnet (36) for driving the T-shaped adjusting rod (35) to move, the electromagnet (36) being fixedly connected to the inside of the stirring rod (240), a limit block (37) being fixedly connected to the inside of the stirring rod (240) and being located below the electromagnet (36), the T-shaped adjusting rod (35) being movably connected to the stirring rod (240) and being located between the electromagnet (36) and the limit block (37), the limit block (37) being used to prevent the T-shaped adjusting rod (35) from falling off, and the piston (26) being connected to the T-shaped adjusting rod (35); The rotating load-bearing column (19) is a hollow structure, and the rotating load-bearing column (19) is connected to the drainage device (25).

2. The automatic rice-feeding and rice-washing rice cooker according to claim 1, characterized in that: The rice storage unit (3) comprises a rice storage box (5), a partition (6), a first rice guide tube (8) and a first driving device (7) for driving the rice transport mechanism (4) to rotate; the partition (6) is connected to the rice storage box (5) and its internal space is divided into a rice storage portion (16) and a mounting portion (17); the first driving device (7) is connected to the partition (6) and is located in the mounting portion (17); the rice transport mechanism (4) is rotatably connected to the partition (6) and is located in the rice storage portion (16); the partition (6) ) is provided with a rice guide opening (61) connected to the rice transport mechanism (4), the rice guide opening (61) being lower than the highest point of the rice transport mechanism (4), one end of the first rice guide tube (8) is connected to the rice guide opening (61), and the other end is connected to the rice washing unit (2), and is used to guide the rice in the rice transport mechanism (4) into the rice washing unit (2), the rice storage box (5) is hinged with a rice box cover plate (9), and the rice storage box (5) is provided with a fixing mechanism (10) for fixing it to the rice cooking unit (1).

3. The automatic rice-feeding and rice-washing rice cooker according to claim 2, characterized in that: The number of the fixing mechanisms (10) is two and they are respectively located on both sides of the rice storage box (5). The fixing mechanisms (10) comprise a fixing block (11), a fixing plate (12) and a tightening device (13). The fixing block (11) is rotatably connected to one side of the rice storage box (5). A mounting groove (14) is provided in the fixing block (11). One end of the fixing plate (12) is rotatably connected to the mounting groove (14) and the other end extends out of the mounting groove (14). One end of the tightening device (13) is fixedly connected to the mounting groove (14) and the other end abuts against the fixing plate (12). A slot (15) is provided on the rice cooking unit (1). The fixing plate (12) is inserted into the slot (15) and is tightly connected to the side wall of the slot (15) under the action of the tightening device (13).

4. The automatic rice-feeding and rice-washing electric rice cooker according to claim 2, characterized in that: The first driving device (7) is a stepping motor, and the rice storage portion (16) is provided with a monitoring device (18) for monitoring the amount of rice.

5. The automatic rice-feeding and rice-washing electric rice cooker according to claim 3, characterized in that: The rice cooking unit (1) comprises an inner pot (38), an inner pot cover (39), a sealing ring (40), a rice cooking shell (45) for mounting the inner pot (38), a heating plate (46) for heating the inner pot (38), and a power source (47), wherein the power source (47) is connected to the heating plate (46), the heating plate (46) is mounted in the rice cooking shell (45), the heating plate (46) is sleeved on the inner pot (38), the inner pot cover (39) is used to seal the inner pot (38), and the sealing ring (40) is connected between the inner pot (38) and the inner pot cover (39) and is used to seal the inner pot cover (39) and the inner pot cover (39). The inner pot (38) is provided with a through hole (390) for communicating with the rice outlet (31) on the inner pot cover (39); a connecting hole (450) is provided at a corner of the rice cooking shell (45); the rice washing bin shell (20) is provided with a similar connecting hole (450); one end of the rotating load-bearing column (19) is plugged into the connecting hole (450) and the other end is plugged into the connecting hole (450) in the rice washing bin shell (20); the rice cooking shell (45) is provided with the card slot (15); and the rice cooking shell (45) is also provided with a notch (451) for facilitating the removal of the inner pot (38).

6. The automatic rice-feeding and rice-washing electric rice cooker according to claim 5, characterized in that: The connection hole (450) is provided with a water outlet hole (4501) that is in communication with the outside.

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