Rice draining rice cooker capable of complete separation of rice soup from cooked rice
By incorporating a closed structure and electric heating device into the rice cooker for draining rice, combined with fan-assisted cooling, the problem of incomplete separation of rice and rice water is solved, improving the quality of drained rice and reducing production costs.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HAN YALAN
- Filing Date
- 2025-02-25
- Publication Date
- 2026-07-09
AI Technical Summary
Existing rice cookers cannot completely separate rice from rice water during the rice cooking stage, resulting in the rice at the bottom of the rice cooker being moist and not loose, which affects the quality of the drained rice.
A closed structure is set between the steamer and the rice cooker. The steam rises through the holes at the bottom of the steamer, forming a steam cloud or steam layer. This raises the boiling water level and ensures that the rice water and rice are completely separated during the draining stage. The power supply control of the electric heating device and the cooling assistance of the fan accelerate the draining process.
It achieves complete separation of rice and rice water, improves the quality of drained rice, reduces production costs and equipment complexity, and enhances reliability.
Smart Images
Figure CN2025079133_09072026_PF_FP_ABST
Abstract
Description
A rice cooker that completely separates rice water from cooked rice. Technical Field
[0001] This invention belongs to the field of kitchen appliance manufacturing, specifically a rice cooker that completely separates rice water from cooked rice. Background Technology
[0002] Figure 1 shows the structure of a popular type of rice cooker for draining rice currently on the market. The labels include: 100 for the pot body, 200 for the rice cooking pot, 300 for the rice steaming pot, 400 for the heating plate, 500 for rice water, 600 for rice water foam, and 700 for cooked rice. Because this type of rice cooker cannot completely separate the rice from the rice water during the steaming stage, the rice at the bottom of the steaming pot is soaked in rice water foam, resulting in a loose upper layer and a still-wet lower layer of cooked rice, failing to achieve the desired high-quality drained rice. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of existing rice cookers that drain rice, and to provide a rice cooker that completely separates rice water from cooked rice. The technical solution is as follows:
[0004] Referring to Figures 2 and 3a to 3j, a rice cooker that completely separates rice water from cooked rice includes a pot body, a pot inner lining, a cooking pot, a steaming rack, an electric heating device, a control system, and a temperature sensor. A grid sealing ring is provided at any height on the bottom edge or side wall of the steaming rack, and a pot sealing ring is provided on the side wall of the cooking pot at a location corresponding to the grid sealing ring on the steaming rack. The grid sealing ring of the steaming rack and the pot sealing ring of the cooking pot are tightly fitted to form a closed structure. The closed structure makes the lower space of the cooking pot a relatively closed water vapor space. The bottom of the steaming rack has several holes with a size smaller than rice grains.
[0005] Ten typical forms of closed structures are listed below:
[0006] Referring to Figure 3a, a grid sealing ring is formed at the connection between the side wall of the steamer and the bottom of the steamer. The part of the side wall of the rice cooker that corresponds to the grid sealing ring on the steamer is contracted inward to form a lower side wall with a slightly smaller diameter. A pot sealing ring is formed at the transition between the upper and lower side walls of the rice cooker. The close fit between the grid sealing ring on the steamer and the pot sealing ring on the rice cooker constitutes a closed structure.
[0007] Referring to Figure 3b, a grid sealing ring is still set at the part where the side wall of the steamer connects to the bottom of the steamer. A slightly constricted convex ring is set at the part where the grid sealing ring on the side wall of the rice cooker corresponds to the grid sealing ring on the steamer to form a pot sealing ring. The tight fit between the grid sealing ring on the steamer and the pot sealing ring on the rice cooker forms a closed structure.
[0008] Referring to Figure 3c, a slightly concave groove with a slightly narrower diameter is set at a suitable position in the middle of the outer wall of the steamer to form an inner concave sealing ring. A flexible rubber ring is tightly nested on the inner concave sealing ring, and the tight fit between the outer surface of the flexible rubber ring and the inner wall of the rice cooker forms a closed structure.
[0009] Referring to Figure 3d, an upper baffle ring and a lower baffle ring are set on the outer wall of the steamer rack. The upper baffle ring and the lower baffle ring together form a grid sealing ring. A flexible rubber ring is tightly nested between the upper baffle ring and the lower baffle ring. The grid sealing ring forms a closed structure through the tight fit between the outer surface of the flexible rubber ring and the inner wall of the rice cooker.
[0010] Referring to Figure 3e, a slightly larger diameter convex ring is set on the outer wall of the steamer to form a steamer seal ring, and a slightly smaller diameter convex ring is set on the side wall of the rice cooker to form a pot seal ring. The close fit between the steamer seal ring formed by the convex ring and the pot seal ring formed by the convex ring constitutes a closed structure.
[0011] Referring to Figure 3f, the outer diameter of the side wall of the steamer rack matches the inner diameter of the side wall of the rice cooker, allowing the steamer rack to be tightly embedded in the rice cooker. The tight fit between the side wall of the steamer rack and the side wall of the rice cooker forms a closed structure.
[0012] Referring to Figure 3g, the outer diameter of the transition portion between the side wall and the bottom of the steamer rack is exactly matched with the inner diameter of the transition portion between the side wall and the bottom of the spherical rice cooker. The transition portion at the bottom of the steamer rack forms a grid seal ring, and the transition portion between the side wall and the bottom of the spherical rice cooker forms a pot seal ring. The tight fit between the grid seal ring formed by the transition portion between the bottom and the side wall of the steamer rack and the pot seal ring formed by the transition portion between the side wall and the bottom of the rice cooker constitutes a closed structure.
[0013] Referring to Figure 3h, a lower sidewall with the same or different diameter as the sidewall is added below the bottom of the steamer rack. The lower edge of the lower sidewall forms a grid sealing ring. The annular part of the bottom of the rice cooker that contacts the grid sealing ring forms a pot sealing ring. The grid sealing ring sits directly on the pot sealing ring to form a closed structure.
[0014] Referring to Figure 3i, the sealing ring also includes a sealing ring ring that can be separated from the rice steamer. The inner diameter of the sealing ring ring matches the outer diameter of the side wall of the rice steamer near the bottom of the steamer. The sealing ring ring is fitted onto the side wall of the rice steamer, and a flexible rubber ring is nested on the sealing ring ring. The outer edge of the flexible rubber ring is in close contact with the side wall of the rice cooker to form a closed structure.
[0015] Referring to Figure 3j, the sealing ring also includes a sealing rubber ring whose inner diameter matches the outer diameter of the side wall of the rice steamer near the bottom. The sealing rubber ring is directly fitted onto the side wall of the rice steamer, and the tight contact between the outer edge of the sealing rubber ring and the side wall of the rice cooker forms a closed structure.
[0016] In fact, there are many other different forms of closed structures, which will not be listed one by one.
[0017] The key function of the closed structure is to seal the space between the inner wall of the rice cooker and the outer wall of the steaming rack. This leaves only the holes at the bottom of the steaming rack and the water in the rice layer as the channels for the rising steam in the closed space of the rice cooker. The holes and the rice layer obstruct the upward movement of steam, causing a large amount of water vapor to remain in the water space of the rice cooker. The retained water vapor forms a steam cloud or steam layer, which displaces part of the water volume in the rice cooker, thereby raising the boiling water level and laying the groundwork for the complete separation of rice water and cooked rice in the subsequent draining stage.
[0018] The weight of the steamer rack must exceed that of a typical steamer rack. The steamer rack must have sufficient weight to ensure that the sealed ring of the rack fits more tightly with the sealed ring of the pot. It must also have sufficient weight to overcome the upward force generated by the steam from the water vapor space of the rice cooker and the violently boiling water at its bottom.
[0019] The electric heating device may also include an electromagnetic induction coil for induction heating of the bottom of the rice cooker.
[0020] A fan can be installed at the bottom of the pot body to force rapid cooling of the electric heating device.
[0021] The main working mechanism of a closed-structure rice cooker is:
[0022] Referring to Figure 4a, before cooking the rice, place a steaming rack in the rice cooker, then add water. The water level should be about 5 mm or more below the top surface of the rice. This water level is to prepare the rice water for complete separation from the cooked rice after draining.
[0023] Referring to Figure 4b, during the rice cooking stage, the water in the rice cooker is heated to a vigorous boil. Due to the closed structure, steam can only rise through the limited holes at the bottom of the steaming grid and escape through the gaps between the rice grains and the water in those gaps. A large amount of steam is also blocked by the holes at the bottom of the steaming grid and the gaps between the rice grains. Therefore, a large amount of water vapor that cannot escape in time will gradually accumulate into a steam cloud or steam layer in the water vapor space of the rice cooker, thereby occupying part of the water volume. This causes the water level of the boiling water to be significantly higher than the surface of the rice. At the same time as the water is boiling vigorously, the control system starts timing the rice cooking time.
[0024] Referring to Figure 4c, during the rice draining stage, when the cooking timer expires and the rice is about 80% cooked, the system stops supplying power to the electric heating device or greatly reduces its heating power. At the same time, the control system starts the timing for the rice draining stage. When the rice water in the rice cooker stops boiling violently, the steam clusters or steam layers that have accumulated in the water vapor space of the rice cooker gradually disappear, and the water level of the rice water drops, entering the rice draining stage. Since some water is absorbed by the rice and some water is evaporated, when the rice draining is finished, the water level of the rice water will drop significantly below the bottom of the rice steaming basket, achieving complete separation of the cooked rice and rice water.
[0025] During the rice steaming stage, after the rice draining stage, the rice is steamed again at a lower heat power, and the steaming timer begins. Since the rice water only boils slightly, steam will not accumulate in large quantities in the enclosed space of the rice cooker. The water level of the rice water will always be lower than the bottom of the steaming basket. When the steaming time is up, the rice is thoroughly cooked. Because the rice and rice water are completely separated during the steaming stage, the bottom layer of rice will not be moistened by rice water and foam. This solves the defect of the bottom layer of rice in existing rice draining rice cookers being wet and not loose, and significantly improves the quality of drained rice.
[0026] To elaborate further:
[0027] Firstly, you can make slight adjustments to the rice cooking timer. If you set the rice cooking timer to a shorter time, the cooked rice will be slightly firmer. If you set the rice cooking timer to a longer time, the cooked rice will be slightly softer.
[0028] Secondly, as shown in Figure 6, the heating plate of the rice cooker can be replaced with an electromagnetic induction coil. The electromagnetic induction heating method does not have the same thermal inertia as the heating plate. Once the power supply to the electromagnetic induction coil is stopped, the violently boiling rice water in the rice cooker will quickly cool down, thereby speeding up the rice draining process and shortening the draining time. This makes the looseness of the top and bottom layers of rice in the cooked drained rice more consistent.
[0029] Thirdly, as shown in Figure 7, a centrifugal fan or axial fan can be installed at the bottom of the rice cooker. The fan is turned on at the same time as the rice draining stage begins. The fan blows the cold air outside the rice cooker towards the heating element and the bottom of the rice cooker, enhancing the cooling effect of the boiling rice water inside the rice cooker, thereby speeding up the rice draining process, shortening the time of the rice draining stage, and making the bottom layer of drained rice and the top layer of drained rice more consistent in terms of looseness.
[0030] Brief description of the working mechanism: It utilizes a closed structure between the side wall of the steamer and the side wall of the rice cooker. This allows the water level to be lower than the surface of the rice before cooking begins, laying the groundwork for the complete separation of rice water and cooked rice. When the rice cooker boils vigorously, the steam generated can only pass through the rice layer through the holes at the bottom of the steamer. This results in a significant amount of steam remaining in the closed space of the rice cooker, forming a steam cloud or layer. This steam cloud or layer occupies part of the water volume, causing the water level in the rice cooker to rise. The increased boiling water level is significantly higher than the surface of the rice. The boiling water level during the rice cooking stage is raised to a certain height, which serves as a subsequent step for the rice water level to drop below the bottom of the steamer basket after draining the rice, thus ensuring the complete separation of rice water and cooked rice.
[0031] The beneficial effects of this invention are:
[0032] 1. This invention solves the problem that the bottom layer of rice cooked in existing rice cookers is not loose enough.
[0033] 2. No need for a dedicated rice water valve, rice water channel, or external rice water box, nor for a complex structure such as a dedicated rice steaming basket lifting device, or even any other additional auxiliary devices, which can significantly reduce the production cost of rice cookers.
[0034] 3. It only uses the power supply to the heating device to turn on and off and control the power at each stage of cooking, so that the rice water and rice are completely separated. Since there are no complicated mechanisms such as rice water solenoid valve and rice steamer position lifting, the reliability of the rice draining rice cooker is improved. Attached Figure Description
[0035] Figure 1 is a structural diagram of a popular rice cooker on the market.
[0036] Figure 2 is a schematic diagram of the basic structure of the rice cooker according to the technical solution of the present invention.
[0037] Figures 3a to 3j are schematic diagrams of 10 typical forms of closed structures.
[0038] Figures 4a, 4b, and 4c show the water in the steam space of the rice cooker at three time points: before cooking, before draining the rice, and after draining the rice. They also show the water level in the steam space, the water and steam mixture layer occupying the space, and the rice water level being lower than the bottom of the steaming grid after draining the rice.
[0039] Figure 5 is a structural schematic diagram of a specific embodiment of the rice cooker of the present invention.
[0040] Figure 6 is a structural schematic diagram of a specific embodiment two of the rice cooker of the present invention.
[0041] Figure 7 is a structural schematic diagram of a specific embodiment three of the rice cooker of the present invention.
[0042] Figure 8 is a structural schematic diagram of a specific embodiment four of the rice cooker of the present invention.
[0043] The labels in Figure 1 are as follows: 100 is the pot body, 200 is the outer pot, 300 is the inner pot, 400 is the heating plate, 500 is the rice water, 600 is the rice water foam, and 700 is the cooked rice.
[0044] The reference numerals in Figures 2 to 8 are as follows: 1 is the inner lining of the rice cooker; 2 is the rice cooker; 2-1 is the side wall of the rice cooker; 2-1-1 is the side wall of the steam space in the rice cooker; 2-2 is the bottom of the rice cooker; 2-1-2 is the transition area between the bottom and side wall of the spherical-bottomed rice cooker; 2-3 is the sealing ring formed by the connection between the side wall and bottom of the steaming rack; 2-4 is the convex ring on the side wall of the rice cooker; 3 is the steaming rack; 3-1 is the side wall of the steaming rack; 3-1-1 is the inner groove of the side wall of the steaming rack; 3-1-2 and 3-1-3 are the upper and lower retaining rings on the side wall of the steaming rack, respectively. 3-1-4 is the protruding sealing ring on the outer wall of the steamer rack; 3-1-5 is the transition part between the bottom of the steamer rack and the side wall; 3-1-6 and 3-1-7 are the lower section of the side wall and the lower edge of the side wall of the steamer rack, respectively; 3-1-8 is a sealing ring that can be separated from the rice steamer rack; 3-1-9 is a sealing rubber ring that can be separated from the rice steamer rack; 3-2 is the bottom of the steamer rack; 3-2-0 is the hole in the bottom of the steamer rack; 3-3 is the sealing ring formed at the connection between the bottom of the steamer rack and the side wall; 32 is the closed structure; 32-0 is the flexible rubber ring; 32-1 is the water vapor space of the rice cooker; 4 is the electric heating device; 4-1 is the electromagnetic induction coil; 5 is the control system; 6-1 is the temperature sensor at the bottom of the pot; 6-2 is the temperature sensor at the lid of the pot; 7 is the control panel; 8 is the lid of the pot; 9 is the fan; and 10 is the pot body.
[0045] 3-0 is rice, 3-20 is water, 3-21 is the water level line, 3-22 is the steam cluster or steam layer, 3-30 is rice water, and 3-31 is the rice water level line.
[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments. Specific Implementation
[0047] Specific Implementation Example 1:
[0048] As shown in Figure 5: This embodiment includes a pot body 10, a rice cooker 2, a steamer rack 3, an electric heating plate 4, a control system 5, a pot bottom temperature sensor 6-1, a pot lid temperature sensor 6-2, an operation panel 7, and a pot lid 8.
[0049] The sealing structure in this embodiment adopts the form shown in Figure 3a, that is, the sealing structure is located at the connection part between the bottom of the steaming grid and the side wall, and a flexible rubber ring can also be used to enhance the sealing performance.
[0050] The main rice cooking process in the specific embodiment is as follows:
[0051] Referring to Figure 4a, to prepare for cooking rice, place the steaming rack in the rice cooker to ensure a tight seal, then add water until the water level is 5-15mm below the top surface of the rice.
[0052] Referring to Figure 4b, during the rice cooking stage, the water in the rice cooker is heated to a vigorous boil, and the water level rises significantly above the surface of the rice. At the same time as the water is boiling vigorously, the control system starts timing the rice cooking time.
[0053] Referring to Figure 4c, during the rice draining stage, when the rice cooking timer expires and the rice is about 80% cooked, the system stops supplying power to the electric heating device or greatly reduces the heating power. At the same time, the control system starts the timing for the rice draining stage. When the rice water in the rice cooker stops boiling violently and the water level drops significantly below the bottom of the rice steamer basket, the rice and rice water are completely separated.
[0054] During the rice steaming stage, after the rice draining stage, the electric heating plate is powered by a smaller heat output. The steam generated by the rice water steams the rice until it is fully cooked, and the cooking process is complete.
[0055] Because the rice and rice water are completely separated during the steaming stage, the bottom layer of rice is not moistened by rice water and foam, thus solving the defect that the bottom layer of rice cooked in existing rice cookers is not moist and loose enough, and significantly improving the quality of rice.
[0056] Specific Implementation Example 2:
[0057] As shown in Figure 6: The differences between this embodiment and Embodiment 1 are: First, the rice cooker in this embodiment has a spherical bottom, so it adopts a closed structure in the form of Figure 3g. Second, the heating plate 4 at the bottom of the pot is replaced with an electromagnetic induction coil 4-1, which heats the rice cooker by electromagnetic induction. Its advantage is that the electromagnetic induction heating method has almost no thermal inertia, which greatly speeds up the process of draining rice.
[0058] The main cooking process in this embodiment is basically the same as in embodiment one. The only difference is that the time for draining the rice can be greatly shortened, so that the looseness of the bottom layer of rice and the top layer of rice in the cooked drained rice is more consistent.
[0059] Specific Implementation Example 3:
[0060] As shown in Figure 7: The differences between this embodiment and Embodiment 1 are: firstly, a closed structure in the form of Figure 3c is adopted; secondly, a fan 9 is set in the lower space of the rice cooker body. The fan 9 starts to operate during the rice draining stage, and its function is to accelerate the heat dissipation and cooling of the boiling rice water in the rice cooker, thereby speeding up the process of rice draining.
[0061] The main cooking process in this specific embodiment is basically the same as that in Embodiment 1. The only difference is that the timing of the rice draining stage can be greatly reduced, making the looseness of the bottom layer of drained rice and the top layer of drained rice more consistent.
[0062] Specific Implementation Example 4:
[0063] As shown in Figure 8: The only difference between this embodiment and Embodiment 1 is that the closed structure adopts the form shown in Figure 3j, specifically a sealing ring that can be separated from the rice steamer.
[0064] The main cooking process in this specific embodiment is basically the same as that in Embodiment 1, and will not be repeated here.
[0065] It should be noted that the specification and accompanying drawings only provide preferred embodiments of the present invention and are not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of the present invention; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of the invention. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of the present invention specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A rice cooker that completely separates rice water from cooked rice, comprising a pot body (10), a pot inner liner (1), a cooking pot (2), a steaming rack (3), an electric heating device (4), a control system (5), and a temperature sensor (6), characterized in that, A grid sealing ring is provided at the connection between the bottom (3-2) and the side wall (3-1) of the steamer (3) or on the side wall (3-1). A pot sealing ring is provided at the side wall (2-1) of the rice cooker or at the bottom (2-2) of the rice cooker in response to the grid sealing ring. The close fit between the grid sealing ring and the pot sealing ring forms a closed structure (32). The closed structure (32) makes the lower space of the rice cooker form a relatively closed water vapor space (32-1).
2. A rice cooker for completely separating rice water from cooked rice, as described in claim 1, characterized in that: A grid sealing ring is formed at the connection point (3-3) between the side wall (3-1) of the steamer (3) and the bottom (3-2) of the steamer. At the point where the side wall (2-1) of the rice cooker corresponds to the grid sealing ring (3-3), the section of the lower side wall (2-1-1) with a slightly smaller diameter is narrowed inward. A pot sealing ring is formed at the transition part (2-3) between the side wall (2-1) of the rice cooker and the lower side wall (2-1-1). Alternatively, a slightly smaller diameter convex ring (2-4) is provided at the point where the side wall (2-1) of the rice cooker corresponds to the grid sealing ring (3-3) to form a pot sealing ring. The close fit between the grid sealing ring on the steamer and the pot sealing ring on the rice cooker constitutes a closed structure (32).
3. A rice cooker for completely separating rice water from cooked rice, as described in claim 1, characterized in that: A groove (3-1-1) with a slightly reduced diameter is provided on the outer wall (3-1) of the steamer to form a sealing ring. A flexible rubber ring (32-0) is tightly nested in the groove (3-1-1). Alternatively, an upper retaining ring (3-1-2) and a lower retaining ring (3-1-3) are provided on the outer wall (3-1) of the steamer. The upper and lower retaining rings together form a sealing ring. A flexible rubber ring (32-0) is tightly nested between the upper and lower retaining rings. The sealing ring forms a closed structure (32) through the tight fit between the outer surface of the flexible rubber ring (32-0) and the inner wall (2-1) of the rice cooker.
4. A rice cooker for completely separating rice water from cooked rice, as described in claim 1, characterized in that: A slightly larger diameter convex ring (3-1-4) is provided on the outer wall (3-1) of the steamer to form a grid seal ring. A slightly smaller diameter convex ring (2-4) is provided on the side wall (2-1) of the rice cooker to form a pot seal ring. The grid seal ring formed by the convex ring (3-3-1) and the pot seal ring formed by the convex ring (2-3-1) fit tightly together to form a closed structure (32).
5. A rice cooker for completely separating rice water from cooked rice, as described in claim 1, characterized in that: The outer diameter of the side wall (3-1) of the steamer rack matches the inner diameter of the side wall (2-1) of the rice cooker, so that the steamer rack (3) can be tightly embedded in the rice cooker (2). The side wall (3-1) of the steamer rack forms a grid seal ring, and the side wall (2-1) of the rice cooker forms a pot seal ring. The tight fit between the grid seal ring formed by the side wall (3-1) of the steamer rack and the pot seal ring formed by the side wall (2-1) of the rice cooker constitutes a closed structure (32).
6. A rice cooker for completely separating rice water from cooked rice, as described in claim 1, characterized in that: The outer diameter of the transition part (3-1-5) between the side wall (3-1) and the bottom of the steamer rack matches the inner diameter of the transition part (2-1-2) between the side wall and the bottom of the spherical rice cooker. The transition part (3-1-5) at the bottom of the steamer rack forms a grid seal ring, and the transition part (2-1-2) between the side wall and the bottom of the spherical rice cooker forms a pot seal ring. The close fit between the grid seal ring formed by the transition part (3-1-5) between the bottom of the steamer rack and the transition part (2-1-2) between the side wall and the bottom of the rice cooker constitutes a closed structure (32).
7. A rice cooker for completely separating rice water from cooked rice, as described in claim 1, characterized in that: A lower side wall (3-1-6) with the same or different diameter as the side wall (3-1) is added below the bottom (3-2) of the steamer. The lower edge (3-1-7) of the lower side wall (3-1-6) forms a grid sealing ring. The annular part of the bottom of the rice cooker that contacts the grid sealing ring forms a pot sealing ring. The grid sealing ring sits directly on the pot sealing ring to form a closed structure (32).
8. A rice cooker for completely separating rice water from cooked rice according to claim 1, characterized in that: The aforementioned sealing structure (32) may also include a flexible rubber ring (32-0) disposed between the contact surfaces of the grid sealing ring and the pot sealing ring to enhance the sealing performance.
9. A rice cooker for completely separating rice water from cooked rice according to claim 1, characterized in that: The sealing ring also includes a sealing ring (3-1-8) that can be separated from the rice steamer. The inner diameter of the sealing ring (3-1-8) matches the outer diameter of the side wall (3-1) of the rice steamer near the bottom. The sealing ring (3-1-8) is fitted onto the side wall (3-1) of the rice steamer, and a flexible rubber ring (32-0) is nested on the sealing ring (3-1-8). The outer edge of the flexible rubber ring (32-0) is in close contact with the side wall of the rice cooker to form a closed structure.
10. A rice cooker for completely separating rice water from cooked rice according to claim 1, characterized in that: The sealing ring also includes a sealing rubber ring (3-1-9) whose inner diameter matches the outer diameter of the side wall (3-1) near the bottom of the rice steamer. The sealing rubber ring (3-1-9) is directly fitted onto the side wall (3-1) of the rice steamer, and the outer edge of the sealing rubber ring (3-1-9) is in close contact with the side wall of the rice cooker to form a closed structure.