Electric cooker cover pressing device and cover pressing method thereof
By installing a pressure-locking device on the rice cooker and using a lever and swing system to automatically adjust the position of the lid, a controllable venting gap is formed, which solves the problem of steam overflow from the rice cooker and achieves a safe and effective anti-overflow effect.
Patent Information
- Application Number
- CN202511569117.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2025-11-28
AI Technical Summary
When cooking porridge or stewing liquid foods, the lid of a current rice cooker may be lifted by steam, causing gaps and spillage. This results in cleaning difficulties and safety hazards, and existing anti-overflow methods are either ineffective or unstable.
Design a rice cooker lid pressure device that utilizes a lever and swing system of clamping and lid-pressing parts to automatically adjust the lid position under the action of steam, tilting it to form a controllable venting gap and providing an efficient pressure relief channel.
It achieves a safe and controllable gap between the lid and the pot body, preventing steam from being forcibly squeezed out from other parts and ensuring the safety and anti-overflow effect of the cooking process. The structure is simple and not easy to clog.
Smart Images
Figure CN121015044A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electric rice cooker accessories, in particular to an electric rice cooker cover pressing device and a cover pressing method thereof. BACKGROUND
[0002] As a common cooking appliance in daily life, electric rice cookers are widely used for cooking rice, porridge, soup and other cooking methods due to their large size and convenience. An electric rice cooker includes a pot body and a pot cover capped on the upper end of the pot body. When cooking porridge or stewing liquid food, a large amount of steam is generated due to the boiling of food in the pot, and the pot cover is often lifted by the steam, resulting in a gap between the pot cover and the pot body, and further causing the overflow of porridge or soup. This not only causes difficulty in cleaning the kitchen, but also poses a safety hazard, such as the risk of scalding or the possibility of electrical short circuit.
[0003] The common anti-overflow methods on the market mainly rely on the sealing structure of the electric rice cooker itself or the addition of an anti-overflow valve, but these methods have limited effect when boiling for a long time or when the food is highly viscous. In addition, some users insert chopsticks or other temporary methods between the pot cover and the pot body to form an exhaust gap, but this method is unstable, unsafe, and can easily affect the sealing performance of the pot cover and the user experience, greatly prolonging the boiling time.
[0004] Therefore, it is necessary to design a cover pressing device with simple structure, convenient use, safety and reliability, which can automatically adjust the position of the pot cover when it is lifted by steam, form a controllable exhaust gap, and effectively prevent the occurrence of the overflow phenomenon. SUMMARY
[0005] To solve the above problems, the purpose of the present application is to provide an electric rice cooker cover pressing device and a cover pressing method thereof. By fixing the clamping part of the cover pressing device to the pot body and pressing the cover pressing part on the pot cover, the cover pressing part is pressed down when the pot cover is lifted by boiling in the pot body, so that the pot cover is in an inclined state and forms a controllable gap with the pot body, providing a pressure relief channel for high-pressure steam.
[0006] To achieve the above purpose, the present application adopts the following technical solutions:
[0007] The electric rice cooker cover pressing device, the electric rice cooker including a pot body and a pot cover, is characterized in that the cover pressing device comprises:
[0008] a clamping part for clamping the outer edge of the upper end of the pot body;
[0009] a connecting part hingedly connected to the clamping part and the cover pressing part at both ends;
[0010] a cover pressing part for pressing the pot cover.When the lid floats upward under the action of steam inside the pot, the pressure part presses down on one side of the upper end of the lid, while the other side of the upper end of the lid flips up. At the same time, the pressure part swings downward relative to the clamping part and pushes the lid to slide along the upper inner edge of the pot body. This causes the lid to shift from the pot body and tilt the lid, creating a gap between the lid and the pot body.
[0011] In the above technical solution, the upward thrust of steam is used to install a lid-pressing device on the rice cooker, and a clever lever and swing system is used to guide the lid into a preset, safe tilt state.
[0012] The pressure cooker includes a clamping part that holds the upper outer edge of the pot body, a pressure-pressing part that presses onto the lid, and a connecting part hinged at both ends to the clamping part and the pressure-pressing part. When steam pushes up the lid, it floats upward. Because the pressure-pressing part presses down on one side of the lid, it forces the other side of the lid to tilt up. The lid acts on the pressure-pressing part, and due to the hinged action of the connecting part, the pressure-pressing part swings downward, pressing down on the lid. The arc-shaped roller surface on the pressure-pressing part rolls relative to the lid, further pushing it to an inclined position. This creates a gap between the lid and the pot body, allowing a large amount of steam to escape. This becomes the most prioritized and unobstructed pressure relief channel for the high-pressure steam, preventing overflow caused by steam carrying porridge or soup when forcibly squeezed out from other parts of the lid. This is equivalent to setting a "safety valve" for the pressure cooker, but with a simpler structure and less prone to clogging. The entire cooking process eliminates concerns about overflow, achieving an effective anti-overflow effect.
[0013] Preferably, the pressure cap portion has at least an arc-shaped raceway surface that mates with the upper end of the pot lid.
[0014] Preferably, the clamping part is a clamp, which includes two clamping plates. The middle part of the two clamping plates is hinged by a torsion spring, so that the outer ends of the two clamping plates can be opened or closed relative to each other.
[0015] Preferably, the middle of the pressure cap is provided with a connecting hole, and the outer ends of the upper clamping plate are formed with flaps on both sides, and mounting holes are provided on the flaps; the connecting part includes a connecting ring, which is formed by a connecting rod passing through the connecting hole and the mounting hole and then surrounding it, so that the pressure cap can rotate relative to the clamping part through the connecting ring.
[0016] Preferably, a fixing sleeve is fitted on the outer side of both ends of the connecting rod.
[0017] Preferably, protective sleeves are fitted on both sides of the connecting ring.
[0018] Preferably, it also includes a gripping part, which is connected to the connecting hole and is used to grip the pressure cap part.
[0019] Preferably, the gripping part includes a traction rope and a gripping ball. The traction rope passes through the connecting hole to form a loop-shaped traction ring, and the gripping ball is fixedly installed on the traction ring. In this way, by gripping the gripping ball, the pressure cap can be driven to swing relative to the clamping part.
[0020] Preferably, a connecting post is provided on the traction ring, and the outer end of the connecting post is fixedly connected to the gripping ball.
[0021] The lid-pressing method is characterized by employing the rice cooker lid-pressing device described in any one of the latter three items above, and the lid-pressing method comprises the following steps:
[0022] Step S1: Place the lid adapter onto the pot body and use the clips to hold the outer edge of the upper part of the pot body;
[0023] Step S2: Grasp the gripping part and rotate the solid sphere and connecting ring relative to the clamp until the solid sphere presses against one side of the pot lid;
[0024] Step S3: When the lid floats upward under the action of steam inside the pot, the pressure part presses down on one side of the upper end of the lid, and the other side of the upper end of the lid flips up. At the same time, the pressure part swings downward relative to the clamping part and pushes the lid to slide along the upper inner edge of the pot body. In this way, the lid and the pot body are offset and the lid is tilted. A gap is formed between the lid and the pot body, allowing steam to overflow from the pot body.
[0025] The present invention adopts the above technical solution and has the following technical effects:
[0026] This solution utilizes the upward thrust of steam to install a lid-pressing device on the rice cooker. By employing a clever lever and swing system, the lid is guided into a preset, safe tilt position.
[0027] The pressure cooker includes a clamping part that holds the upper outer edge of the pot body, a pressure-pressing part that presses onto the lid, and a connecting part hinged at both ends to the clamping part and the pressure-pressing part. When steam pushes up the lid, it floats upward. Because the pressure-pressing part presses down on one side of the lid, it forces the other side of the lid to tilt up. The lid acts on the pressure-pressing part, and due to the hinge of the connecting part, the pressure-pressing part (a solid sphere) swings downward, pressing down on the lid. The arc-shaped roller surface on the pressure-pressing part (the solid sphere) rolls relative to the lid, further pushing the lid to an inclined position. This creates a gap between the lid and the pot body, allowing a large amount of steam to escape. This becomes the most prioritized and unobstructed pressure relief channel for the high-pressure steam, preventing overflow caused by steam carrying porridge or soup when forcibly squeezed out from other parts of the lid. This is equivalent to setting a "safety valve" for the pressure cooker, but with a simpler structure and less prone to clogging. The entire cooking process eliminates concerns about overflow, achieving an effective anti-overflow effect.
[0028] The device is a passive mechanical feedback system whose operation is entirely driven by the steam pressure inside the boiler, without the need for any electronic sensors or user intervention.
[0029] Furthermore, the lid slides along the inner edge of the upper part of the pot, making it more stable during tilting and preventing it from violently bouncing or tipping over under steam impact. This smooth sliding ensures a stable and continuous pressure release process, rather than intermittent "puffing" sounds and violent splashing.
[0030] This device operates automatically, eliminating the need for users to approach the pot while the steam is boiling, thus avoiding the risk of burns and making it safer.
[0031] This device, as an external accessory, requires no modification to the rice cooker's structure, making it compatible with the vast majority of ordinary rice cookers on the market, thus offering excellent versatility. It is secured to the outside of the cooker via a clamping mechanism, preventing contact with food and ensuring hygiene.
[0032] The above solution uses a purely mechanical structure to convert steam energy into a controllable, safe, and efficient anti-overflow action. It not only achieves fundamental anti-overflow in terms of effectiveness, but also provides an automatic, safe, and high-quality cooking experience. Attached Figure Description
[0033] Figure 1 This is a three-dimensional structural diagram of the pressure cap device for a rice cooker.
[0034] Figure 2 This is a three-dimensional structural diagram of the pressure cap device for a rice cooker from another perspective.
[0035] Figure 3 This is a schematic diagram of the pressure plate part of the rice cooker's pressure plate device pressing onto the pot lid.
[0036] Figure 4 This is a schematic diagram showing the pot lid being pushed to an inclined position by the steam and the pressure part of the pressure device. Detailed Implementation
[0037] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.
[0040] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0042] like Figures 1-4 The rice cooker lid pressing device shown is for a rice cooker including a pot body 1 and a pot lid 2. The lid pressing device includes: a clamping part 102 for clamping the outer edge of the upper end of the pot body 1; and a connecting part, with its two ends respectively hinged to the clamping part 102 and the lid pressing part 101.
[0043] When the lid 2 floats upward under the action of steam inside the pot body 1, the pressure part 101 presses down on one side of the upper end of the lid 2, and the other side of the upper end of the lid 2 flips up. At the same time, the pressure part 101 swings downward relative to the clamping part 102 and pushes the lid 2 to slide along the upper inner edge of the pot body 1. In this way, the lid 2 and the pot body 1 are offset and the lid 2 is tilted, forming a gap 100 between the lid 2 and the pot body 1.
[0044] In the above technical solution, the upward thrust of steam is used to install a lid-pressing device on the rice cooker, and a clever lever and swing system is used to guide the lid into a preset, safe tilt state.
[0045] The pressure cooker includes a clamping part that holds the upper outer edge of the pot body, a pressure-pressing part that presses onto the lid, and a connecting part hinged at both ends to the clamping part and the pressure-pressing part. When steam pushes up the lid, the lid floats upward. Because the pressure-pressing part presses down on one side of the lid, it forces the other side of the lid to tilt. The lid acts on the pressure-pressing part, and due to the hinged action of the connecting part, the pressure-pressing part swings downward, further pressing down and pushing the lid to a tilted position. This creates a gap between the lid and the pot body, allowing a large amount of steam to escape. This becomes the most prioritized and unobstructed pressure relief channel for the high-pressure steam, thus preventing overflow caused by steam carrying porridge or soup when forcibly squeezed out from other parts of the lid. This is equivalent to setting a "safety valve" for the pressure cooker, but with a simpler structure and less prone to clogging. The entire cooking process eliminates concerns about overflow, achieving an effective anti-overflow effect.
[0046] Furthermore, the pressure cap 101 has at least an arc-shaped raceway surface that mates with the upper end of the lid 2. In this technical solution, the arc-shaped raceway surface of the pressure cap mates with the upper arc surface of the lid, making it easier for the pressure cap to swing down and open the lid. The pressure cap can be a sphere or hemisphere, or other components with arc-shaped surfaces, to reduce friction with the lid, allowing the pressure cap to swing down quickly without damaging the lid. This makes the tilting and sliding motion of the lid smoother and the response faster, improving the sensitivity and reliability of the device. This solution uses a sphere to facilitate rolling. Furthermore, this solution uses a solid iron ball to ensure sufficient weight for swinging down; other spheres with greater mass, such as copper balls, can also be used.
[0047] Furthermore, the clamping part 102 is a clamp, which includes two clamping plates 3. The middle of the two clamping plates 3 is hinged by a torsion spring 4, so that the outer ends of the two clamping plates 3 can be opened or closed relative to each other. In this technical solution, the clamping part is preferably a clamp. The clamping structure is simple, and by utilizing the clamping force of the torsion spring, it can be easily and firmly clamped to the outer edge of pots of various sizes and shapes. It has strong versatility, is convenient to pick up and put down, and at the same time ensures that the device will not loosen or fall off due to vibration or external force during operation. The clamping part in this case can also be a component with a snap-fit mechanism.
[0048] Furthermore, a connecting hole 5 is provided through the middle of the pressure cap 101, and flaps 6 are formed on both sides of the outer end of the upper clamping plate 3, with mounting holes 7 on the flaps 6; the connecting part includes a connecting ring 8, which is formed by a connecting rod passing through the connecting hole 5 and the mounting hole 7 and then enclosing them. In this way, the pressure cap 101 can rotate relative to the clamping part 102 through the connecting ring structure formed by the connecting rod passing through the pressure cap and the clamping part and then bending it to enclose them, in this technical solution, a simple, stable and low-cost hinged connection between the pressure cap and the clamping part is achieved, ensuring that the pressure cap can rotate stably relative to the clamping part, so that the pressure cap can swing freely around a defined axis, and realizing its core function of "swinging downward and pressing down relative to the clamping part" is a key structural guarantee.
[0049] Furthermore, fixing sleeves 9 are fitted onto the outer sides of both ends of the connecting rod. In this technical solution, the connecting ring formed after the connecting rod is bent and enclosed is closed by the fixing sleeves, which improves the structural strength and prevents the two ends of the connecting rod from coming out of the mounting holes, ensuring the stability and durability of the hinge structure and improving the safety of the device.
[0050] Furthermore, protective sleeves 10 are fitted on both sides of the connecting ring 8. In this technical solution, the protective sleeves (usually made of plastic or silicone) can cover both sides of the connecting ring to prevent wear when the connecting ring comes into contact with the pot body, thereby improving the user experience and safety of the product.
[0051] Furthermore, the pressure cap device also includes a gripping part connected to the connecting hole 5 for gripping the pressure cap part 101. In this technical solution, the pressure cap part becomes hot and difficult to remove after being heated on the pot lid. The gripping part provides the user with a clear and convenient operating handle, which can directly control the swing of the pressure cap part, making it easy to accurately place the device in the working state before cooking begins, and to flip the pressure cap part to the outside of the pot body after it opens the pot lid.
[0052] Furthermore, the gripping part includes a traction rope 11 and a gripping ball 12. The traction rope 11 passes through the connecting hole 5 to form a loop, and the gripping ball 12 is fixedly installed on the traction loop. By gripping the gripping ball 12, the pressure cap 101 can be swung relative to the clamping part 102. A connecting post 13 is connected to the traction loop, and the outer end of the connecting post 13 is fixedly connected to the gripping ball 12. In this technical solution, the gripping ball is ergonomically designed, making it easy for users to grip and apply force, resulting in very intuitive and convenient operation. The traction rope passes through the connecting hole to form a traction loop, allowing the gripping ball to adjust the position of the pressure cap through the traction loop, resulting in a simple and efficient structure. The connecting post provides a transition and lever arm between the gripping ball and the traction loop, allowing for a longer lever arm when the user applies force, preventing burns from touching the pressure cap, making it safer and easier to operate. The traction loop, connecting post, and gripping ball are made of non-thermal conductive materials, facilitating gripping and preventing heat conduction from the pressure cap. Furthermore, the connecting post can be used to connect the traction loop and the gripping ball by adhesive, binding, or other methods. Furthermore, to ensure overall integrity, assembly holes can be made on the gripper ball. The traction rope can be made of binding wire (iron core binding tape). The traction rope passes through the connection hole of the pressure cap and then through the assembly hole. The binding wires on both sides of the gripper ball are then rotated and twisted to form a connecting post, which makes the connection structure between the pressure cap and the gripper ball more stable.
[0053] The lid-pressing method uses the electric rice cooker lid-pressing device described above. The steps of this lid-pressing method are as follows:
[0054] Step S1: Fit the lid 2 onto the pot body 1, and use the clips to hold the outer edge of the upper part of the pot body 1.
[0055] Step S2: Grasp the gripping part and rotate the solid sphere and connecting ring 8 relative to the clamp until the solid sphere presses against one side of the pot lid 2;
[0056] Step S3: When the lid 2 floats upward under the action of steam inside the pot body 1, the pressure part 101 presses down on one side of the upper end of the lid 2, and the other side of the upper end of the lid 2 flips up. At the same time, the pressure part 101 swings downward relative to the clamping part 102 and pushes the lid 2 to slide along the upper inner edge of the pot body 1. In this way, the lid 2 and the pot body 1 are offset and the lid 2 is tilted. A gap is formed between the lid 2 and the pot body 1, allowing steam to overflow from the pot body 1.
[0057] The above method clearly demonstrates how a simple operation can trigger the automatic anti-overflow mechanism of the gland device, ultimately achieving the technical effect of "creating a gap to allow steam to overflow".
[0058] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.
Claims
1. A rice cooker lid-pressing device, wherein the rice cooker includes a pot body (1) and a lid (2), characterized in that: The capping device includes: The clamping part (102) is used to clamp the outer edge of the upper end of the pot body (1); The connecting part is hinged at both ends to the clamping part (102) and the pressure cover part (101); When the lid (2) floats upward under the action of steam inside the pot body (1), the lid (101) presses down on one side of the upper end of the lid (2), and the other side of the upper end of the lid (2) flips up. At the same time, the lid (101) swings downward relative to the clamping part (102) and pushes the lid (2) to slide along the upper inner edge of the pot body (1). In this way, the lid (2) and the pot body (1) are offset and the lid (2) is tilted, and a gap is formed between the lid (2) and the pot body (1).
2. The rice cooker lid pressing device according to claim 1, characterized in that: The pressure cap (101) has at least an arc-shaped raceway surface that mates with the upper end of the pot lid (2).
3. The rice cooker lid pressing device according to claim 2, characterized in that: The clamping part (102) is a clamp, which includes two clamping plates (3). The middle part of the two clamping plates (3) is hinged by a torsion spring (4), so that the outer ends of the two clamping plates (3) can be opened or closed relative to each other.
4. The rice cooker lid pressing device according to claim 3, characterized in that: The pressure cap (101) has a connecting hole (5) through the middle, and the upper clamping plate (3) has folded pieces (6) formed on both sides of its outer end. The folded pieces (6) have mounting holes (7). The connecting part includes a connecting ring (8), which is formed by a connecting rod passing through the connecting hole (5) and the mounting hole (7) and then surrounding them. In this way, the pressure cap (101) can rotate relative to the clamping part (102) through the connecting ring (8).
5. The rice cooker lid pressing device according to claim 4, characterized in that: The two ends of the connecting rod are fitted with fixing sleeves (9).
6. The rice cooker lid pressing device according to claim 4, characterized in that: Protective sleeves (10) are fitted on both sides of the connecting ring (8).
7. The rice cooker lid pressing device according to claim 4, characterized in that: It also includes a gripping part, which is connected to the connecting hole (5) and is used to grip the pressure cap part (101).
8. The rice cooker lid pressing device according to claim 7, characterized in that: The gripping part includes a traction rope (11) and a gripping ball (12). The traction rope (11) passes through the connecting hole (5) to form a loop traction ring. The gripping ball (12) is fixedly installed on the traction ring. In this way, by gripping the gripping ball (12), the pressure cover part (101) can be driven to swing relative to the clamping part (102).
9. The rice cooker lid pressing device according to claim 8, characterized in that: A connecting post (13) is connected to the traction ring, and the outer end of the connecting post (13) is fixedly connected to the grab ball (12).
10. A capping method, characterized in that: The rice cooker lid pressing device described in any one of 7 to 9 above, the lid pressing method has the following steps: Step S1: Fit the lid (2) onto the pot body (1) and use the clips to hold the outer edge of the upper part of the pot body (1); Step S2: Grasp the gripping part and rotate the solid sphere and connecting ring (8) relative to the clamp until the solid sphere presses against one side of the pot lid (2); Step S3: When the lid (2) floats upward under the action of steam in the pot body (1), the pressure part (101) presses down on one side of the upper end of the lid (2), and the other side of the upper end of the lid (2) flips up. At the same time, the pressure part (101) swings down relative to the clamping part (102) and pushes the lid (2) to slide along the upper inner edge of the pot body (1). In this way, the lid (2) and the pot body (1) are offset and the lid (2) is tilted. A gap is formed between the lid (2) and the pot body (1) so that steam overflows from the pot body (1).