Inner cover with liquid guide

By designing a ring-shaped clamping structure and a drainage channel in the inner lid of the rice cooker, the problem of condensate falling back into the rice is solved, achieving efficient collection and drainage of condensate, and improving the appearance and taste of the rice.

CN224572595UActive Publication Date: 2026-07-31JIANGMEN LEMI ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGMEN LEMI ELECTRIC APPLIANCE CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing rice cooker inner lids have insufficient capacity to collect or guide condensate, causing condensate to fall back onto the rice surface, affecting the appearance and quality of the rice.

Method used

Design an inner cover with liquid flow guidance, including an annular clamping structure, a one-way inlet water storage chamber and a flow channel, collect condensate through the annular clamping structure and discharge it in a concentrated manner when the inner cover is opened.

Benefits of technology

It effectively collects and drains condensate, preventing it from dripping back onto the surface of the rice and improving the appearance and taste of the rice.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224572595U_ABST
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Abstract

This utility model relates to the field of rice cookers, specifically disclosing an inner lid with liquid guiding, a lid body, and an annular clamping structure surrounding the lid body. The inner lid is detachably connected to an outer lid via the annular clamping structure. The annular clamping structure has a one-way inlet water storage chamber to collect condensate when the inner lid is closed. The annular clamping structure also has a drainage channel to drain the liquid from the water storage chamber when the inner lid is opened. By providing a one-way inlet water storage chamber on the annular clamping structure, condensate during the heat preservation stage is received; and the liquid in the water storage chamber is drained when the inner lid is opened via the drainage channel. The capacity of the first and second water storage chambers is increased by the first water storage chamber, the second water storage chamber, the flexible extension, the flexible support piece, the protrusion, and the groove. The first and second water storage chambers are connected, allowing the annular clamping structure to receive more backflowing condensate.
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Description

Technical Field

[0001] This utility model relates to the field of rice cookers, and more specifically, to an inner lid with liquid guiding function. Background Technology

[0002] During the operation of a rice cooker, steam condenses when it encounters cold air. This is especially pronounced during the keep-warm stage, where the temperature inside the pot is higher than the ambient temperature, creating a significant temperature difference that lasts for an extended period. To address this condensation issue, existing rice cookers typically add raised dots to the inner lid. These dots increase the surface roughness of the lid, enhancing the adhesion of condensate droplets and preventing them from sliding off easily. When the lid is opened, the water droplets adhering to the inner lid flow along its surface towards the sealing ring, where they collect.

[0003] However, this method of solving the condensation problem by adding bumps to the inner lid has obvious limitations. On the one hand, the number of water droplets that the bumps can hold is limited. When the amount of condensation is large, a large number of water droplets cannot be effectively absorbed by the bumps and will still fall back onto the surface of the rice. On the other hand, the water droplets that fall back onto the surface of the rice will form obvious white spots, which not only affects the appearance of the rice but also causes localized dampness, leading to localized spoilage and reducing the overall quality and taste of the rice. Therefore, there is an urgent need for an inner lid design for rice cookers that can more effectively collect or guide condensation and prevent it from falling back onto the surface of the rice. Utility Model Content

[0004] The present invention aims to overcome at least one of the defects of the prior art and provide an inner cover with liquid guiding to solve the problem of poor ability of existing rice cooker inner covers to collect or guide condensate.

[0005] The technical solution adopted in this utility model is an inner cover with liquid guiding function, comprising: The inner cover is detachably connected to the outer cover via the annular clamping structure surrounding the inner cover body. The annular clamping structure is provided with a one-way inlet water storage chamber to collect condensate when the inner cover is closed; The annular clamping mechanism is also provided with a drainage channel to drain the liquid from the water storage chamber when the inner cover is opened.

[0006] When the inner lid is closed, the condensate flows through the surface of the inner lid to the water storage cavity of the annular clamping structure and is stored horizontally in the cavity; when the rice cooker is turned on, the condensate in the water storage cavity is discharged from the water storage cavity through the vertical drainage channel.

[0007] To store more condensate, the water storage chamber includes: a first water storage chamber formed with the cover body, and a second water storage chamber disposed on the side of the first water storage chamber away from the cover body. The first water storage chamber and the second water storage chamber are connected, and the second water storage chamber is connected to the drainage channel.

[0008] The two interconnected water storage chambers increase the water storage capacity of the annular clamping structure.

[0009] To prevent excessive condensation in the second water storage chamber, the surfaces of the second water storage chamber are on the same horizontal plane when the inner cover is closed; The second water storage chamber is provided with an overflow outlet, which connects one side of the surface of the second water storage chamber and the drainage channel, so that even if the inner cover is closed, the second water storage chamber can still drain liquid through the drainage channel after it is full.

[0010] The condensate in the second water storage chamber flows into the drainage channel through the overflow outlet to discharge it, preventing excessive condensate in the second water storage chamber from causing it to fall back down.

[0011] To guide the condensate flow to the annular clamping structure, the cover body is spherical.

[0012] The spherical shape makes the inner surface of the cover inclined, and the condensate flows down the inclined surface.

[0013] To collect more condensate, the annular clamping structure includes: a rigid annular body; The rigid body has a flexible edge on the inner edge of its surface, and the rigid body, the flexible edge, and the cover body form a first water storage cavity. The lower part of the rigid body is provided with an annular flexible support piece, the inner edge of the flexible support piece is connected to the inner edge of the rigid body, and a second water storage cavity is formed between the rigid body and the flexible support piece. The first water storage chamber and the second water storage chamber are connected, and the second water storage chamber is connected to the drainage channel.

[0014] The flexible extension edge is used to increase the water storage capacity of the first cavity, and the flexible support plate is used to increase the water storage capacity of the second cavity.

[0015] To guide condensate, the flexible extension is inclined, and the side closer to the rigid body is lower than the side farther from the rigid body; A gap is left between the flexible extension and the inner cover, and the gap forms the liquid inlet of the first water storage cavity.

[0016] The liquid inlet is used to guide the condensate to seep into the first water storage chamber.

[0017] In order to connect the first water storage chamber and the second water storage chamber, the annular clamping structure is provided with several evenly distributed vertical channels. The vertical channel connects the first water storage chamber and the second water storage chamber; The vertical channel forms a water inlet below the first water storage chamber and a water outlet at the lower part of the second water storage chamber.

[0018] The inlet is used to drain the condensate from the first water storage chamber, and the outlet is used to drain the condensate into the second water storage chamber.

[0019] To control the flow of condensate, the flexible support sheet is provided with closed protrusions; The position of the closed protrusion matches the water outlet so that the water outlet is sealed by steam pressure when the inner cover is closed, or by gravity when the inner cover is open.

[0020] The opening and closing of the water outlet is controlled by steam and opening the inner cover, so that the condensate on the inner cover flows into the first water storage chamber instead of the second water storage chamber, and is discharged through the first water storage chamber.

[0021] In order to accommodate more condensate, the inner side of the rigid body is provided with several horizontally extending and evenly distributed protrusions. The annular clamping structure is provided with several evenly distributed vertical channels that connect the first water storage chamber and the second water storage chamber. The vertical channel is located within the protrusion.

[0022] The protruding part is used to increase the water capacity of the first water storage chamber.

[0023] To further increase the capacity of the second water storage chamber, a groove is provided on the lower surface of the rigid body, and the groove communicates with the second water storage chamber.

[0024] The groove increases the space of the second water storage chamber, allowing it to hold more condensate.

[0025] Compared with the prior art, the beneficial effects of this utility model are mainly reflected in the following aspects: 1. Guide and drain condensate. A one-way inlet water storage chamber is provided on the annular clamping structure to receive condensate during the heat preservation stage; and the liquid in the water storage chamber is discharged through a drainage channel when the inner cover is opened.

[0026] 2. Increased water storage capacity of the ring-shaped clamping structure. The capacity of the first and second water storage chambers is increased by the first water storage chamber, the second water storage chamber, the flexible extension, the flexible support plate, the protrusion, and the groove. The first and second water storage chambers are connected, so that the annular clamping structure can receive more backflow condensate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the inner lid of this utility model on the pot lid.

[0028] Figure 2 This is a structural diagram of the first water storage cavity of this utility model.

[0029] Figure 3 This is a structural diagram of the rigid body of this utility model.

[0030] Figure 4 This is a structural diagram of the liquid inlet and flexible extension edge of this utility model.

[0031] Figure 5 This is a structural diagram of the drainage channel and the second water storage chamber of this utility model.

[0032] Figure 6 This is a structural diagram of the protrusion and flexible support sheet of this utility model.

[0033] Figure 7 This is a structural diagram of the groove of this utility model.

[0034] Figure 8 This is a structural diagram of the vertical channel of this utility model.

[0035] Figure 9 This is a structural diagram of the vertical channel of this utility model.

[0036] Figure label: Cover body 100; Annular clamping structure 200: First water storage chamber 210: Liquid inlet 211; Second water storage chamber 220: Overflow outlet 221; Drainage channel 230; Rigid body 240: Flexible extension 241, Flexible support piece 242: Closed protrusion; Protrusion 243, Groove 244; Vertical channel 250: Water inlet 251, Water outlet 252. Detailed Implementation

[0037] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0038] Example 1 like Figure 1 and Figure 5 As shown, this embodiment provides an inner cover with liquid guiding, including: a cover body 100, and an annular clamping structure 200 provided around the cover body 100, wherein the inner cover is detachably connected to the outer cover through the annular clamping structure 200. The annular clamping structure 200 is provided with a one-way inlet water storage chamber to collect condensate when the inner cover is closed; The annular clamping mechanism is also provided with a drainage channel 230 to drain the liquid from the water storage chamber when the inner cover is opened.

[0039] By incorporating a one-way inlet water storage chamber within the annular clamping structure 200, liquid water condensed on the inner lid surface is continuously collected during the rice cooker's heat preservation stage. The one-way inlet design of the water storage chamber ensures that condensate can only flow in and cannot overflow. During the heat preservation stage, the condensate flows through the inner lid surface to the water storage chamber of the annular clamping structure 200, where it is horizontally stored, preventing direct contact with the rice. When the user opens the rice cooker, the condensate in the storage chamber is discharged through the vertical drainage channel 230, preventing water droplets from splashing or remaining on the inner lid edge upon opening. This solves the problem of water droplets falling onto the rice surface during the heat preservation stage.

[0040] like Figure 1-2 As shown in Figure 5, the water storage cavity includes: a first water storage cavity 210 formed with the cover body 100, and a second water storage cavity 220 disposed on the side of the first water storage cavity 210 away from the cover body 100. The first water storage cavity 210 and the second water storage cavity 220 are connected, and the second water storage cavity 220 is connected to the drainage channel 230.

[0041] By setting two water storage chambers, the water capacity of the annular clamping structure 200 is increased, the inlet and outlet water are separated, and the backflow of condensate in the annular clamping structure 200 is prevented.

[0042] like Figure 5 As shown, when the inner cover is closed, the surfaces of the second water storage chamber 220 are on the same horizontal plane; The second water storage chamber 220 is provided with an overflow port 221, which connects one side of the surface of the second water storage chamber 220 and the drainage channel 230, so that even if the inner cover is closed, the second water storage chamber 220 can still drain liquid through the drainage channel 230 after it is full.

[0043] Since the second water storage chamber 220 is on the same horizontal plane, when the condensate flows into the second water storage chamber 220, it spreads along the channel of the second water storage chamber 220, so that the condensate in the second water storage chamber 220 is evenly distributed; when the second water storage chamber 220 is full of condensate, it flows into the overflow outlet 221 and is discharged from the second water storage chamber 220 through the drainage channel 230, thus solving the problem of the second water storage chamber 220 being full before opening the cover.

[0044] like Figure 1 and 3 As shown, the cover body 100 is spherical.

[0045] The lid body 100 is designed in the shape of a spherical crown. The inner side of the lid body 100 is high in the middle and low at the edge. When it is in the heat preservation stage, water vapor condenses when it encounters cold on the lid body 100. The condensed water droplets flow along the inner side of the lid body 100 to the edge of the lid body 100, preventing too much condensed water droplets from condensing on the inner lid and dripping into the pot, causing the rice to become damp and discolored.

[0046] like Figure 1-6 As shown, the annular clamping structure 200 includes: an annular rigid body 240; The rigid body 240 has a flexible edge 241 on the inner edge of its surface, and the rigid body 240, the flexible edge 241 and the cover body 100 form a first water storage cavity 210. The lower part of the rigid body 240 is provided with an annular flexible support piece 242, the inner edge of the flexible support piece 242 is connected to the inner edge of the rigid body 240, and a second water storage cavity 220 is formed between the rigid body 240 and the flexible support piece 242. The first water storage chamber 210 and the second water storage chamber 220 are connected, and the second water storage chamber 220 is connected to the drainage channel 230.

[0047] A first water storage cavity 210 is formed by setting a flexible extension 241 on the rigid body 240 and cooperating with the cover body 100. The rigid body 240 and the flexible support piece 242 form a second water storage cavity 220 and connect the first water storage cavity 210 and the second water storage cavity 220. The condensate in the second water storage cavity 220 flows out through the drainage channel 230. The structure is simple, the design is easy, and the reliability is improved. It ensures that the condensate flows into the second water storage cavity 220 and is discharged through the drainage channel 230, rather than falling back into the pot.

[0048] like Figure 2-4 As shown, the flexible extension 241 is inclined, and the side closer to the rigid body 240 is lower than the side farther away from the rigid body 240; A gap is left between the flexible extension 241 and the inner cover, and the gap forms the liquid inlet 211 of the first water storage cavity 210.

[0049] The inclined flexible extension 241 makes the first water storage cavity 210 an inclined water storage cavity, with the part away from the rigid body 240 being higher than the part near the rigid body 240. Under the action of water tension, the condensate seeps into the first water storage cavity 210 through the liquid inlet 211. The inclined cavity accelerates the seepage of the condensate, which seeps into the bottom of the first water storage cavity 210. And under the obstruction of the flexible extension 241 away from the rigid body 240, the condensate in the first water storage cavity 210 cannot flow out through the liquid inlet 211, thus preventing the condensate from flowing out in reverse and dripping into the pot.

[0050] like Figure 1-9As shown, the annular clamping structure 200 is provided with several evenly distributed vertical channels 250. The vertical channel 250 connects the first water storage chamber 210 and the second water storage chamber 220; The vertical channel 250 forms a water inlet 251 below the first water storage chamber 210 and a water outlet 252 at the lower part of the second water storage chamber 220.

[0051] The first water storage chamber 210 and the second water storage chamber 220 are connected by several vertical channels 250, which solves the problem of excessive condensate in the first water storage chamber 210. The liquid in the first water storage chamber 210 is discharged through the inlet 251 and discharged into the second water storage chamber 220 through the outlet 252, thus avoiding liquid splashing.

[0052] like Figure 6-9 As shown, the flexible support sheet 242 is provided with a closed protrusion 2421; The position of the closed protrusion 2421 matches the outlet 252 so that the outlet 252 is closed by steam pressure when the inner cover is closed, or closed by gravity when the inner cover is open. The closed protrusion 2421 enables the self-adjustment of opening and closing the water outlet 252. During the heat preservation stage, the steam pressure is low, and the flexible support plate 242 droops slightly under the action of gravity, separating the closed protrusion 2421 from the water outlet 252 and opening the water outlet 252. During the cooking stage, the steam pressure is high, and the flexible support plate 242 rises under the action of steam, with the closed protrusion 2421 closely attached to the water outlet 252. When the inner cover is opened, the flexible support plate 242 naturally falls down, closing the water outlet 252.

[0053] like Figure 1-6 As shown, the inner side of the rigid body 240 is provided with a plurality of horizontally inwardly extending and evenly distributed protrusions 243. The annular clamping structure 200 is provided with a plurality of evenly distributed vertical channels 250 that connect the first water storage cavity 210 and the second water storage cavity 220. The vertical channel 250 is disposed within the protrusion 243.

[0054] The protrusion 243 increases the area of ​​the flexible extension 241, which means that the water capacity of the first water storage cavity 210 is increased.

[0055] like Figure 3-7 As shown, the lower surface of the rigid body 240 is provided with a groove 244, which is connected to the second water storage cavity 220.

[0056] The groove 244 increases the capacity of the second water storage chamber 220 and guides the condensate to spread to the surrounding area. Under the action of water tension, the condensate can be quickly and evenly distributed in the second water storage chamber 220.

[0057] Example 2 like Figure 1-9 As shown, this embodiment is an inner cover with liquid flow guidance as described in Embodiment 1. When in the heat preservation stage, steam rises to the inner cover, condenses into water droplets upon cooling, and flows down along the inner side of the cover body 100 towards the edge of the cover body 100. When the condensed water droplets approach the edge of the cover body 100, they enter the first water storage cavity 210 along the water inlet 251. The inclined flexible extension 241 accelerates the penetration of the condensed water droplets and prevents the condensed water from flowing out in the opposite direction. The condensed water gathers in the first water storage cavity 210 and spreads along the cavity until it reaches the protrusion 243. Condensate enters the vertical channel 250 through the inlet 251 at the top of the protrusion 243, and then flows into the second water storage chamber 220 through the outlet 252 at the bottom of the protrusion 243. The vertical channel 250 connects the first water storage chamber 210 and the second water storage chamber 220, diverting excess condensate from the first water storage chamber 210 into the second water storage chamber 220. When the second water storage chamber 220 is full of condensate, it flows into the drainage channel 230 through the overflow outlet 221 and flows out from the drainage channel 230, preventing excessive condensate from falling back onto the rice and causing it to become damp and discolored.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An inner cap with liquid diversion, comprising: A cover body, and an annular clamping structure surrounding the cover body, wherein the inner cover is detachably connected to the outer cover via the annular clamping structure; characterized in that, The annular clamping structure is provided with a one-way inlet water storage chamber to collect condensate when the inner cover is closed; The annular clamping structure is also provided with a drainage channel to drain the liquid from the water storage chamber when the inner cover is opened.

2. The inner cover with liquid guiding function according to claim 1, characterized in that, The water storage cavity includes: a first water storage cavity formed with the cover body, and a second water storage cavity disposed on the side of the first water storage cavity away from the cover body, the first water storage cavity and the second water storage cavity being connected, and the second water storage cavity being connected to the drainage channel.

3. The inner cover with liquid guiding function according to claim 2, characterized in that, When the inner cover is closed, the surfaces of the second water storage chamber are on the same horizontal plane; The second water storage chamber is provided with an overflow outlet, which connects one side of the surface of the second water storage chamber and the drainage channel, so that even if the inner cover is closed, the second water storage chamber can still drain liquid through the drainage channel after it is full.

4. The inner cap with liquid guiding according to claim 1, characterized in that, The cover body is spherical.

5. An inner cover with liquid guiding function according to any one of claims 1-4, characterized in that, The annular clamping structure includes: an annular rigid body; The rigid body has a flexible edge on the inner edge of its surface, and the rigid body, the flexible edge, and the cover body form a first water storage cavity. The lower part of the rigid body is provided with an annular flexible support piece, the inner edge of the flexible support piece is connected to the inner edge of the rigid body, and a second water storage cavity is formed between the rigid body and the flexible support piece. The first water storage chamber and the second water storage chamber are connected, and the second water storage chamber is connected to the drainage channel.

6. The inner cover with liquid guiding function according to claim 5, characterized in that, The flexible extension is inclined, and the side closer to the rigid body is lower than the side farther from the rigid body; A gap is left between the flexible extension and the inner cover, and the gap forms the liquid inlet of the first water storage cavity.

7. The inner cover with liquid guiding function according to claim 5, characterized in that, The ring clamping structure has several evenly distributed vertical channels; The vertical channel connects the first water storage chamber and the second water storage chamber; The vertical channel forms a water inlet below the first water storage chamber and a water outlet at the lower part of the second water storage chamber.

8. The inner cover with liquid guiding function according to claim 7, characterized in that, The flexible support sheet is provided with closed protrusions; The position of the closed protrusion matches the water outlet so that the water outlet is sealed by steam pressure when the inner cover is closed, or by gravity when the inner cover is open.

9. The inner cover with liquid guiding function according to claim 5, characterized in that, The inner side of the rigid body is provided with several horizontally inwardly extending and evenly distributed protrusions. The ring-shaped clamping structure is provided with several evenly distributed vertical channels that connect the first water storage chamber and the second water storage chamber. The vertical channel is located within the protrusion.

10. The inner cap with liquid guiding according to claim 5, characterized in that, The lower surface of the rigid body is provided with a groove, which is communicated with the second water storage cavity.