Soaking and draining device and rice cooking appliance
By designing the pot body components, support components, water injection components, and drainage components, the draining process is simplified, and dynamic water injection and gravity drainage are achieved. This solves the problems of complex structure and starch foam in existing rice cookers, and improves rice quality and sugar reduction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XIANGTIAN TECH CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-06-23
AI Technical Summary
Existing rice cookers have complex drainage structures, and the dissolution of starch causes foam to rise, affecting the quality and taste of the rice. Soaking with a fixed amount of water makes it difficult to continuously reduce the sugar content.
The design incorporates pot body components, support components, water injection components, and drainage components. Through gravity drainage and dynamic water injection, it achieves multiple soaking and draining of food. It uses starch-free water for steaming, and combines gravity stratification and precise control of soaking time to avoid the formation of starch foam.
The simplified draining structure reduces manufacturing costs, improves the quality and taste of rice, breaks through the bottleneck of starch solubility, and significantly reduces the sugar content in rice.
Smart Images
Figure CN224387199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of home appliances, and in particular to a soaking and draining device and a rice cooking appliance. Background Technology
[0002] The "boil then steam" cooking process for drained rice involves boiling the rice to release some of the starch from the surface of the grains into the water, effectively reducing the starch content of the finished rice and better meeting modern health-conscious dietary needs. To achieve this process, the rice cooker needs to perform a draining operation after soaking. Existing products mainly employ two draining structures: one uses a lifting mechanism inside the rice cooker, which raises the inner pot to drain the rice when the program is triggered, and then heats the remaining water to generate steam for steaming; the other uses a sealed inner and outer pot structure, utilizing pressure changes to achieve water-rice separation—either by using an air pump to pressurize the water in the outer pot to flush the rice layer, or by releasing pressure after heating with steam to drain the rice, and then using the remaining water for steaming.
[0003] However, both types of draining structures share a common drawback: the numerous mechanical components complicate the structure. More importantly, existing rice cookers directly heat the starch-containing soaking water to generate steam for steaming, dissolving the starch and forming a large amount of foam when boiling. This foam rises along the draining channels and / or pot body gaps to the bottom of the inner pot, triggering excessive local gelatinization of the rice and severely affecting the quality and texture of the rice at the bottom. It is worth noting that, in pursuit of a more significant sugar reduction effect and improved taste, the inventor has proposed a "multiple soaking and steaming" scheme, which involves soaking and draining the rice in the initial stage, followed by one or more soaking and draining processes during the steaming stage. However, limited by the physical bottleneck of starch solubility, repeated soaking with a fixed amount of water is difficult to continuously reduce sugar content—most of the starch that can be precipitated has already been dissolved in the first soaking, and the marginal benefit of subsequent cycles decreases significantly. Utility Model Content
[0004] In order to overcome at least one deficiency of the prior art, this utility model provides a soaking and draining device and a rice cooking appliance with a simple draining structure that can effectively reduce the starch content of rice.
[0005] To achieve the above objectives, this utility model provides a soaking and draining device, comprising a pot body assembly, a support member, a water injection assembly, and a draining member. The pot body assembly includes a pot body and a lid. The pot body has an open, hollow structure. Water injection holes are formed on the peripheral wall of the pot body or the lid, and drain holes are formed on the bottom wall of the pot body or the peripheral wall near the bottom wall. The support member is detachably embedded in the pot body, with a gap between the outer bottom wall of the support member and the inner bottom wall of the pot body. Multiple drain holes are formed on the support member. The water injection assembly is located on one side of the pot body and includes a water storage tank, a heating element, and a water delivery element. The heating element heats the water in the water storage tank. One end of the water delivery element is connected to the water storage tank, and the other end is connected to the water injection hole on the pot body or lid, injecting the heated water from the water storage tank into the pot body through the water injection hole to submerge the food on the support member. The draining member is connected to the drain hole on the pot body. After the soaking time of the food meets the set requirements, the drain channel where the drain hole is located is opened to drain the food.
[0006] According to one embodiment of the present invention, the pot body assembly further includes an immersion water level probe disposed on the peripheral wall of the pot body and higher than the inner bottom wall of the support member, and the immersion water level probe is electrically connected to the water supply member via the control board on the soaking and draining device.
[0007] According to one embodiment of the present invention, a drain hole is formed on the bottom wall of the pot body, and the pot body assembly also includes a drain water level probe disposed on the peripheral wall of the pot body and lower than the outer bottom wall of the support member. The drain water level probe is electrically connected to the drain member and / or the water supply member via a control board on the soaking and draining device.
[0008] According to one embodiment of the present invention, the support member is an open inner liner with a drainage hole at the bottom, and the upper edge of the inner liner is located at the upper edge of the pot body.
[0009] Alternatively, the supporting component is a steaming rack installed inside the pot.
[0010] According to one embodiment of the present invention, the water conveying component is a water pump with a one-way check valve, and the drainage component is a water pump or a drainage valve with a one-way check valve.
[0011] Furthermore, this utility model also provides another soaking and draining device, which includes a pot body assembly, a support member, a water injection assembly, and a draining member. The pot body assembly includes a pot body and a pot lid. The pot body has an open, hollow structure. Water injection holes are formed on the peripheral wall of the pot body or the pot lid, and draining holes are formed on the bottom wall of the pot body or the peripheral wall near the bottom wall. The support member is detachably embedded in the pot body. There is a gap between the outer bottom wall of the support member and the inner bottom wall of the pot body. Multiple draining holes are formed on the support member. The water injection assembly is located on one side or above the pot body. The water injection assembly includes a heating element and a water supply pipe. One end of the water supply pipe is connected to the outlet of the municipal water supply network, and the other end is connected to the water injection hole. The heating element is located in the water supply pipe to heat the water flowing through the water supply pipe. The heated water is injected into the pot body through the water injection hole to submerge the food on the support member. The draining member is connected to the drain hole on the pot body. After the soaking time of the food meets the set requirements, the drain channel where the drain hole is located is opened to drain the food.
[0012] Furthermore, this utility model also provides another soaking and draining device, which includes a pot body assembly, a support member, a water injection assembly, and a draining member. The pot body assembly includes a pot body with an open, hollow structure, and drain holes are formed on its bottom wall or the peripheral wall near the bottom wall. The support member is detachably embedded in the pot body, with a gap between the outer bottom wall of the support member and the inner bottom wall of the pot body, and multiple drain holes are formed on the support member. The water injection assembly is located above the open end of the pot body, and includes a water storage tank, a heating element, and a water injection valve. The heating element is located at the bottom of the water storage tank to heat the water in the tank, and the bottom wall of the water storage tank has a water injection hole communicating with the inner cavity of the pot body. The water injection valve can open or close the water injection hole. The draining member is connected to the drain hole on the pot body, and opens the drain channel where the drain hole is located to drain the food after the soaking time meets the set requirements.
[0013] Furthermore, this utility model also provides a rice cooking appliance that includes the aforementioned soaking and draining device and a steam generator. After draining, the steam generator inputs steam into the pot or support to steam the food; or, the steam generator heats the remaining water in the pot after draining to generate steam for steaming the food.
[0014] According to one embodiment of the present invention, the steam generator is a heating plate disposed on the bottom wall of the outer body of the pot. After the water is drained, the heating plate heats the remaining water in the pot to generate steam for steaming the food.
[0015] Alternatively, the steam generator is located outside the pot assembly, and air inlets are formed on the pot wall or lid. The steam generated by the steam generator is injected into the pot through the air inlets and air pipes to steam the food.
[0016] In summary, the soaking and draining device and rice cooking appliance provided by this utility model utilize the opening and closing of the drain component to achieve the soaking or draining of ingredients. Each soaking is accompanied by re-injection of water through the water injection component. During the second soaking, starch precipitation is not affected by the solubility of the previously precipitated starch, overcoming the solubility bottleneck of static soaking and thus better reducing the sugar content in the rice. Simultaneously, this utility model uses starch-free water injected through the water injection component for steaming, completely eliminating the starch foam problem. Furthermore, this utility model employs a physical layered design with a detachable support component and a distance between the pot body, directly utilizing gravity drainage to replace the mechanical lifting or pneumatic drive in traditional draining structures. This simplifies the draining process by eliminating the need for motors, air pumps, and sealing components, reducing manufacturing costs and improving reliability. At a deeper level, this utility model dynamically adjusts the water temperature and volume through the water injection component, rapidly injecting hot water while combining it with a high-speed responsive drain component, thereby precisely controlling the draining sequence and ensuring that the overall soaking time of the rice layer is basically consistent, thus improving the quality and taste of the rice.
[0017] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0018] Figure 1 The diagram shown is a structural schematic of the soaking and draining device provided in Embodiment 1 of this utility model.
[0019] Figure 2 The diagram shown is a structural schematic of the rice cooking appliance provided in Embodiment 1 of this utility model.
[0020] Figure 3 The diagram shown is a structural schematic of the rice cooking appliance provided in Embodiment 2 of this utility model.
[0021] Figure 4 The diagram shown is a schematic diagram of the soaking and draining device provided in Embodiment 3 of this utility model. Detailed Implementation
[0022] Example 1
[0023] like Figure 1As shown, the soaking and draining device 10 provided in this embodiment includes a pot body assembly 1, a support member 2, a water injection assembly 3, and a draining member 4. The pot body assembly 1 includes a pot body 11 and a pot lid 12, wherein the pot body 11 has an open hollow structure, and its peripheral wall or the pot lid 12 is provided with water injection holes 13, and the bottom or near-bottom peripheral wall is provided with draining holes 14. The support member 2 is detachably embedded in the pot body 11, and its outer bottom wall is spaced apart from the inner bottom wall of the pot body 11, and the surface of the support member 2 is distributed with several draining holes 21. The water injection assembly 3 is located on the side of the pot body 11 and includes a water storage tank 31, a heating element 32, and a water supply element 33; the heating element 32 heats the water in the water storage tank 31, and the two ends of the water supply element 33 are respectively connected to the water storage tank 31 and the water injection holes 13, injecting heated water into the pot body 11 and submerging the food on the support member 2. The draining member 4 is connected to the draining holes 14, and the draining channel is opened after the set soaking time to perform draining.
[0024] The soaking and draining device 10 provided in this embodiment achieves gravity draining through the opening and closing control of the drain component 4. Compared with traditional mechanical lifting or pneumatically driven structures, its advantage lies in the fact that only a single drain component 4 is needed to complete the draining operation. The water injection hole 13 and the drain hole 14 are directly integrated into the pot body 11, eliminating the need for a complex sealing structure. This makes the pot body component 1 both structurally simple, low-cost, and easy to control the water level. More importantly, during repeated soaking, fresh water is injected through the water injection component 3, dynamically updating the solvent environment. This breaks through the starch solubility limitation of traditional fixed-volume soaking. After the first draining, the re-injection of clean water can further dissolve the starch in the food, forming a gradient precipitation effect to significantly improve the blood sugar reduction efficiency, which is especially suitable for the dietary needs of diabetics. Furthermore, the gelatinization rate of the food increases rapidly with soaking time, and this phenomenon is even more significant during repeated soaking. Traditional air pressure driven draining relies on pressure regulation, which limits the draining rate and causes the bottom layer of food to become overly gelatinized due to the delayed draining. In contrast, the soaking and draining device 10 provided in this example directly triggers gravity drainage through the draining component 4, which improves the response speed and draining efficiency simultaneously. It precisely controls the consistency of the soaking time of food in each area, ensuring that the rice grains are uniform and moist after steaming.
[0025] In this embodiment, the pot assembly 1 further includes an immersion water level probe 15 disposed on the periphery of the pot body 11 and higher than the inner bottom wall of the support member 2. The immersion water level probe 15 is electrically connected to the water supply member 33 via the control board on the soaking and draining device 10 (displayed at the bottom of the pot body 11, not shown in the figure due to perspective). Specifically, the water supply member 33 is a water pump with a one-way check valve, and its two ends are connected to the water storage tank 31 and the water injection hole 13 on the periphery of the pot body 11 via water supply pipes. During water immersion, the water supply member 33 is activated and the draining member 4 closes the drain channel where the drain hole 14 is located. The water level in the pot body 11 gradually rises. When the water level reaches the immersion water level probe 15, it indicates that the water has completely submerged the food, that is, the height of the food will be less than or equal to the height of the immersion water level probe 15. At this time, the immersion water level probe 15 is triggered to generate a high water level signal to the control board, and the control board outputs a signal to shut off the water supply member 33; at the same time, the timer on the control board starts counting. Once the soaking time meets the set requirement, the timer outputs a trigger signal to the control board, which then activates the drain component 4 to open the drainage channel where the drain hole 14 is located. In this embodiment, the drain component 4 is also a water pump with a one-way check valve, which pumps water based on gravity drainage to accelerate the drainage speed. However, this invention does not impose any limitations on this. In other embodiments, the drain component can also be an electrically controlled drain valve.
[0026] In this embodiment, the drain hole 14 is formed on the bottom wall of the pot body 11. The pot body assembly 1 also includes a drain water level probe 16 disposed on the peripheral wall of the pot body 11 and lower than the outer bottom wall of the support member 2. The drain water level probe 16 is electrically connected to the drain member 4 and / or the water supply member 33 via a control board on the soaking and draining device. During draining, when the water level is lower than the drain water level probe 16, the drain water level probe 16 will output a trigger signal to the control board, and the control board will close the drain member 4. However, this utility model does not limit this in any way. In other embodiments, the control board can open the water supply member to replace the soaking water while closing the drain member. That is, by replacing the soaking water during the first soaking, the starch content in the food is increased, thereby further reducing the sugar content of the food.
[0027] Although this embodiment uses a drainage assembly including a drain level probe as an example, the present invention does not limit this. In other embodiments, the drain hole may be located on the peripheral wall of the pot body, and the amount of residual water in the pot body may be controlled based on the height of the drain hole to prepare for steam generation.
[0028] In this embodiment, the support member 2 is an open inner liner with drainage holes at the bottom. The upper edge of the inner liner is located at the upper edge of the pot body 11, and the pot lid 12 covers the upper edge of the inner liner. However, this utility model does not impose any limitations on this. In other embodiments, the support member may also be a steaming rack disposed inside the pot body.
[0029] In this embodiment, the heating element 32 in the water injection assembly 3 is a heating plate disposed at the bottom of the water storage tank 31. However, this invention does not impose any limitation on this. In other embodiments, the water storage tank and the heating element in the water injection assembly may also be boiler components.
[0030] Corresponding to the above-mentioned soaking and draining device, this embodiment also provides a rice cooking utensil for draining rice. For example... Figure 2 As shown, the rice cooking appliance includes the aforementioned soaking and draining device 10 and a steam generator 20. Specifically, in this embodiment, the steam generator 20 is a heating plate installed on the outer bottom wall of the pot body 11. After draining, the heating plate heats the remaining water in the pot body 11 to generate steam for steaming the food. The remaining water in the pot body 11 can be either the remaining starch-containing water after draining or the starch-free water re-injected by the water injection component 3. That is, during the last draining, all the soaking water in the pot body is drained, then the drain 4 is closed, and the water supply component 33 is activated to re-inject water into the pot body 11. The heating plate of the steam generator 20 heats the re-injected water to generate steam. Heating starch-free water to generate steam for steaming completely eliminates the problem of foam rising and gelatinization caused by starch. However, this utility model does not impose any limitations on this. Since the rice cooking appliance provided in this embodiment uses dynamic water for multiple soakings of the food, the starch content in the last soaking water will inevitably be lower than that of the soaking water used in existing methods that use fixed water for soaking rice. Therefore, the foam produced by its heating is far less than that of existing rice cookers, and the gelatinization problem caused by rising foam can be effectively avoided by controlling the height of the support component.
[0031] Although this embodiment uses a heating plate located at the bottom of the pot body 11 as an example of a steam generator, this invention does not impose any limitations on this. In other embodiments, for large kitchens, the steam generator can also be a steam boiler; in this case, a steam vent can be provided on the pot body or lid, and the steam boiler inputs steam into the steam vent to steam the food. Specifically, when the steam vent is located on the peripheral wall of the pot body and is lower than the support member, the steam passes through the support member from bottom to top and exits from the edge of the lid. When the steam vent is located on the lid, the lid needs to be sealed to the inner pot or pot body so that the steam can pass through the support member and then exit from the open drain.
[0032] The cooking steps of the rice draining cooker provided in this embodiment include:
[0033] Step S10: After placing the ingredients on the support 2, close the pot lid 12 and shut off the drain 4.
[0034] Step S20: Open the water supply component 33 and inject hot water heated to the set temperature into the pot body 11. After the hot water completely submerges the food on the support component 2 (i.e., triggering the immersion water level probe 15), close the water supply component 33 to perform a single water injection and soaking of the food. In this embodiment, the water injection component 3 also includes a temperature probe 34 that monitors the temperature inside the water storage tank 31 in real time and is electrically connected to the control board. During the first water injection, the water in the water storage tank 31 is preheated to 10℃~50℃ by the temperature probe 34. When the control board opens the water supply component 33, water at 10℃~50℃ will be injected into the pot body 12. When the water level reaches the immersion water level probe 15, the immersion water level probe 15 will output a trigger signal to the control board, and the control board will close the water supply component 33 and start the timer.
[0035] Step S30: After soaking in water for the set time, the control panel opens the drain valve 4 to drain the soaking water in the pot body 11.
[0036] Step S40: After the water and rice are completely separated, the steam generator 20 generates steam to steam the food once. Step S50: After the steaming time is satisfied, the control board opens the water supply component 33 again to inject hot water at the set temperature (40℃~60℃) into the pot body 11 for the second time. After the hot water completely submerges the food on the support (i.e., triggering the immersion water level probe 15), the control board closes the water supply component 33 to soak the food a second time.
[0037] For the secondary hot water injection, in this embodiment, the heating element 32 in the water injection component 3 is turned on simultaneously with step S40 to raise the water in the storage tank 31 to the set temperature of 40℃~60℃. However, this utility model does not impose any limitations on this. In other embodiments, the heating element 32 can be turned on after step S40 to heat the water in the storage tank 31 to the set temperature (40℃~60℃); then, step S50 is executed. Alternatively, in other embodiments, when the water injection component 3 is an instant electric faucet with temperature control, step S50 is executed directly after step S40, and the instant electric faucet outputs hot water at the set temperature (40℃~60℃) for secondary soaking.
[0038] Step S60: After the secondary water injection soaking meets the set time, the control panel opens the drain device 4 again to drain the secondary soaking water in the pot body 11.
[0039] Step S70: After the water and rice are completely separated, the steam generator 20 generates steam to steam the food a second time until it is cooked. However, this invention does not limit this step. In other embodiments, water can be added to the pot again for soaking three or more times.
[0040] Although this embodiment uses a single soaking water level probe on the pot's perimeter wall, meaning the water volume is the same for each soak, this invention does not impose any limitations. In other embodiments, multiple soaking water level probes can be installed on the pot's perimeter wall. During the first soak, the food is soaked with a large volume of water (10°C to 50°C, triggering the highest soaking water level probe), which significantly precipitates starch from the food, reducing its sugar content. At this stage, the draining time has a relatively small impact on the gelatinization rate of the rice layer, and the overall gelatinization consistency of the food can be well controlled. During the second soak, a high temperature and a small volume of water are used, i.e., the lowest soaking water level probe is triggered at 40°C to quickly remove sugar. In this case, since the degree of gelatinization is extremely sensitive to the draining time, a small volume of water allows for rapid draining, precisely controlling the degree of gelatinization. Based on this, combined with the precise control of the drainage sequence of the drainage component 4, a gradient precipitation effect is formed, breaking through the solubility bottleneck of static soaking. The adjustable density of the drainage holes in the bearing component is further extended to adapt to a variety of ingredients such as grains, ultimately achieving a systemic breakthrough in sugar reduction efficiency, taste consistency and equipment versatility.
[0041] Example 2
[0042] This embodiment is basically the same as Embodiment 1 and its variations, except that the structure of the water injection component 3 in the soaking and draining device 10 is different. Specifically, as shown... Figure 3 As shown, the soaking and draining device provided in this embodiment includes a pot body assembly 1, a support member 2, a water injection assembly 3, and a draining member 4. The pot body assembly 1 includes a pot body 11 and a pot lid 12. The pot body 11 has an open, hollow structure. Water injection holes 13 are formed on the peripheral wall of the pot body 11 or the pot lid 12, and draining holes 14 are formed on the bottom wall of the pot body 11 or the peripheral wall near the bottom wall. The support member 2 is detachably embedded in the pot body 11. There is a gap between the outer bottom wall of the support member 2 and the inner bottom wall of the pot body 11, and multiple draining holes 21 are formed on the support member 2. The water injection component 3 is located on one side or above the pot body 11. The water injection component 3 includes a heating element 31' and a water supply pipe 32'. One end of the water supply pipe 32' is connected to the outlet of the municipal water supply network, and the other end is connected to the water injection hole 13. The heating element 31' is located in the water supply pipe 32' to heat the water flowing through the water supply pipe 32'. The heated water is injected into the pot body 11 through the water injection hole 13 to submerge the food on the carrier 2. The drainage component 4 is connected to the drainage hole 14 on the pot body 11. After the soaking time of the food meets the set requirements, the drainage channel where the drainage hole is located is opened to drain the water.
[0043] Specifically, the water injection component 3 is an instant electric faucet with temperature control, the heating element 31' is a heating wire or heating tube electrically connected to the control board at the bottom of the pot body 11, and the water supply pipe 32 includes the faucet body and the water supply pipe. Compared with the water injection component including a water storage tank in Embodiment 1, the water injection component 3 in this embodiment directly injects water rapidly heated by the heating element 31' into the pot body 11 based on the pressure in the municipal pipe network, further simplifying the structure of the water injection component 3.
[0044] In this embodiment, the pot lid 12 seals onto the upper edge of the inner pot, which serves as the support member 2. A steam port 121 is formed on the pot lid 12, and the steam port 121 is connected to a steam generator 20 located outside the pot body via a steam pipe. During steaming, the steam generator 20 inputs steam into the support member 2 through the steam port 121. The steam penetrates the rice layer from top to bottom and enters the pot body 1 through the drain hole 21, finally exiting from the opened drain 4. However, this invention does not impose any limitations on this aspect. In other embodiments, the steam generator may also be a heating plate disposed on the bottom wall of the outer pot body, as shown in Embodiment 1.
[0045] The specific structure of the rice draining cooking appliance and the specific steps of the rice draining cooking method are basically the same as those in Example 1 and their variations, and will not be repeated here.
[0046] Example 3
[0047] This embodiment is basically the same as Embodiment 1 and its variations, except that the structure and placement of the water injection component 3 are different. Specifically, as follows: Figure 4 As shown, the soaking and draining device provided in this embodiment includes a pot body assembly 1, a support member 2, a water injection assembly 3, and a drain member 4. The pot body assembly 1 includes a pot body 11, which has an open hollow structure, and a drain hole 14 is formed on its bottom wall or the peripheral wall near the bottom wall. The support member 2 is detachably embedded in the pot body 11, and there is a gap between the outer bottom wall of the support member 2 and the inner bottom wall of the pot body 11. Multiple drain holes 21 are formed on the support member 2. The water injection assembly 3 is disposed above the open end of the pot body 11. The water injection assembly 3 includes a water storage tank 31, a heating element 32, and a water injection valve 33'. The heating element 32 is disposed at the bottom of the water storage tank 31 to heat the water in the water storage tank 31. The bottom wall of the water storage tank 31 has a water injection hole 311 that communicates with the inner cavity of the pot body 11. The water injection valve 33' opens or blocks the water injection hole 311. The drain component 4 is connected to the drain hole 14 on the pot body 1. After the soaking time of the food meets the set requirements, the drain channel where the drain hole is located is opened to drain the water.
[0048] In this embodiment, the water storage tank 31 is positioned above the pot body 11. When water is added, the control panel at the bottom of the pot body 11 electrically opens the water injection valve 33', and the heated water in the water storage tank 31 is injected into the pot body under the action of gravity to soak the food. This method eliminates the need for water injection holes, water supply components, and a pot lid on the pot body, further simplifying the structure of the rice cooking appliance compared to Embodiment 1.
[0049] The specific structure of the rice draining cooking appliance and the specific steps of the rice draining cooking method are basically the same as those in Example 1 and their variations, and will not be repeated here.
[0050] In summary, the soaking and draining device and rice cooking appliance provided by this utility model utilize the opening and closing of the drain component to achieve the soaking or draining of ingredients. Each soaking is accompanied by re-injection of water through the water injection component. During the second soaking, starch precipitation is not affected by the solubility of the previously precipitated starch, overcoming the solubility bottleneck of static soaking and thus better reducing the sugar content in the rice. Simultaneously, this utility model uses starch-free water injected through the water injection component for steaming, completely eliminating the starch foam problem. Furthermore, this utility model employs a physical layered design with a detachable support component and a distance between the pot body, directly utilizing gravity drainage to replace the mechanical lifting or pneumatic drive in traditional draining structures. This simplifies the draining process by eliminating the need for motors, air pumps, and sealing components, reducing manufacturing costs and improving reliability. At a deeper level, this utility model dynamically adjusts the water temperature and volume through the water injection component, rapidly injecting hot water while combining it with a high-speed responsive drain component, thereby precisely controlling the draining sequence and ensuring that the overall soaking time of the rice layer is basically consistent, thus improving the quality and taste of the rice.
[0051] Although the present invention has been disclosed above by way of preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of protection claimed in the claims.
Claims
1. A steeping and draining device, characterized in that, include: The pot assembly includes a pot body and a pot lid. The pot body has an open, hollow structure. Water injection holes are formed on the peripheral wall of the pot body or the pot lid, and drainage holes are formed on the bottom wall of the pot body or the peripheral wall near the bottom wall. The support member is detachably embedded in the pot body, and there is a gap between the outer bottom wall of the support member and the inner bottom wall of the pot body. Multiple drainage holes are formed on the support member. The water injection component is located on one side of the pot body and includes a water storage tank, a heating element, and a water supply component. The heating element heats the water in the water storage tank. One end of the water supply component is connected to the water storage tank, and the other end is connected to the water injection hole on the pot body or pot lid. The heated water in the water storage tank is injected into the pot body through the water injection hole to immerse the food on the carrier. The drain fitting is connected to the drain hole on the pot body. After the food has been soaked for the set time, the drain channel where the drain hole is located will be opened to drain the water.
2. The infusion draining device according to claim 1, wherein The pot body assembly also includes an immersion water level probe disposed on the peripheral wall of the pot body and higher than the inner bottom wall of the support component. The immersion water level probe is electrically connected to the water supply component via the control board on the soaking and draining device.
3. The infusion draining device according to claim 1, wherein The drain hole is formed on the bottom wall of the pot body. The pot body assembly also includes a drain water level probe disposed on the peripheral wall of the pot body and lower than the outer bottom wall of the support member. The drain water level probe is electrically connected to the drain member and / or the water supply member via the control board on the soaking and draining device.
4. The infusion draining device according to claim 1, wherein The supporting component is an open inner liner with drainage holes at the bottom, and the upper edge of the inner liner is located at the upper edge of the pot body; Alternatively, the support member may be a steaming rack disposed inside the pot.
5. The infusion draining device according to claim 1, wherein The water supply component is a water pump with a one-way check valve, and the drainage component is a water pump or a drainage valve with a one-way check valve.
6. A steeping and draining device characterized by, include: The pot assembly includes a pot body and a pot lid. The pot body has an open, hollow structure. Water injection holes are formed on the peripheral wall of the pot body or the pot lid, and drainage holes are formed on the bottom wall of the pot body or the peripheral wall near the bottom wall. The support member is detachably embedded in the pot body, and there is a gap between the outer bottom wall of the support member and the inner bottom wall of the pot body. Multiple drainage holes are formed on the support member. A water injection component is located on one side or above the pot body. The water injection component includes a heating element and a water supply pipe. One end of the water supply pipe is connected to the outlet of the municipal water supply network, and the other end is connected to the water injection hole. The heating element is located in the water supply pipe to heat the water flowing through the water supply pipe. The heated water is injected into the pot body through the water injection hole to submerge the food on the carrier. The drain fitting is connected to the drain hole on the pot body. After the food has been soaked for the set time, the drain channel where the drain hole is located will be opened to drain the water.
7. A steeping and draining device characterized by, include: The pot assembly, including the pot body, has an open hollow structure, and drainage holes are formed on its bottom wall or the peripheral wall near the bottom wall. The support member is detachably embedded in the pot body, and there is a gap between the outer bottom wall of the support member and the inner bottom wall of the pot body. Multiple drainage holes are formed on the support member. A water injection assembly is located above the open end of the pot body. The water injection assembly includes a water storage tank, a heating element, and a water injection valve. The heating element is located at the bottom of the water storage tank to heat the water inside the water storage tank. The bottom wall of the water storage tank has a water injection hole that communicates with the inner cavity of the pot body. The water injection valve can open or block the water injection hole. The drain fitting is connected to the drain hole on the pot body. After the food has been soaked for the set time, the drain channel where the drain hole is located will be opened to drain the water.
8. A rice cooker, characterized by comprising: include: The soaking and draining device according to any one of claims 1 to 7; A steam generator inputs steam into the pot or support after draining to steam the food; or, the steam generator heats the remaining water in the pot after draining to generate steam for steaming the food.
9. The rice cooker according to claim 8, wherein The steam generator is a heating plate installed on the bottom wall of the pot body. After the water is drained, the heating plate heats the remaining water in the pot body to generate steam for steaming the food. Alternatively, the steam generator is located outside the pot assembly, and air inlets are formed on the pot wall or pot lid. The steam generated by the steam generator is injected into the pot through the air inlets and air pipes to steam the food.