A detachable integrated anti-overflow valve structure and an electric heating cooker thereof

Abstract

This utility model discloses an easily detachable integrated anti-overflow valve structure and its electric cooker, belonging to the field of small household appliance technology. It includes a lid with a valve seat inside, the two ends of the first inner cavity of the valve seat being connected to a steam outlet and a valve inlet, respectively. It also includes a flexible valve core, which is detachably connected to the first inner cavity of the valve seat. The flexible valve core includes a core body, with a second inner cavity formed inside. One end of the core body has a steam inlet communicating with the second inner cavity, and the other end is closed to form a first bubble-blocking part. The side wall of the core body has at least one first overflow port circumferentially distributed. This utility model, by making the flexible valve core and valve seat detachably connected, allows users to directly pull out or insert the flexible valve core as a whole without disassembling hardware fasteners or disassembling the valve body structure, facilitating cleaning. The first bubble-blocking part of the flexible valve core can block direct steam flow and diffuse through the circumferentially distributed overflow ports, effectively preventing the accumulation and overflow of high-viscosity foam.

Description

Technical Field

[0001] This utility model belongs to the field of small household appliance technology, specifically relating to an easily detachable integrated anti-overflow valve structure and its electric heating cooker. Background Technology

[0002] Electric cookers, rice cookers, and other electric cookware often produce a lot of foam when cooking rice or porridge because the starch gelatinizes and the water boils violently. If this foam is released directly with the steam, it can easily overflow through the gaps in the cookware, causing contamination on the outside of the pot and the countertop. This not only affects kitchen hygiene but may also lead to food spoilage due to foam residue. In addition, frequent cleaning of overflowing foam significantly reduces the user experience, especially in high-water-level cooking scenarios, where traditional anti-overflow designs are insufficient to completely solve the problem.

[0003] In the prior art, such as Chinese patent document CN206543129U, a steam valve assembly and rice cooker are disclosed. This assembly uses a multi-stage cavity structure between the valve cover and valve seat, including a first cavity, a second cavity, and a bubble-breaking component. Steam drives the bubble-breaking component to roll and puncture air bubbles, and multiple bubble-breaking and backflow processes reduce foam overflow. While this solution improves overflow prevention, its components rely on hardware fasteners or complex assembly structures for fixation. Disassembly and cleaning require removing the valve cover, cavity seat, and other components one by one, which is cumbersome and easily damages the connecting parts. Long-term use can lead to bacterial growth due to residual foam, affecting hygiene and safety. Although existing overflow prevention structures can partially alleviate the foam overflow problem, they are limited by complex disassembly processes and component designs, making it difficult to simultaneously meet the needs of efficient bubble breaking and convenient cleaning.

[0004] Therefore, there is an urgent need to provide an integrated anti-overflow valve structure that is simple in structure and easy to disassemble and clean, as well as its electric cooking appliance, to overcome the shortcomings of the existing technology. Summary of the Invention

[0005] In response to the problems in related technologies, this utility model proposes an easily detachable integrated anti-overflow valve structure and its electric heating cookware, so as to solve the technical problem that the existing anti-overflow structure is difficult to balance the needs of efficient foam breaking and convenient cleaning.

[0006] The technical solution of this utility model is implemented as follows: an easily detachable integrated anti-overflow valve structure, including a cover with a steam outlet and a valve inlet; a valve seat is provided in the cover, the valve seat has a first inner cavity that runs through the middle, and the two ends of the first inner cavity are respectively connected to the steam outlet and the valve inlet.

[0007] It also includes a flexible valve core, which is detachably connected to the first inner cavity of the valve seat; the flexible valve core includes a core body, the core body forms a second inner cavity, one end of which is provided with an inlet communicating with the second inner cavity, the other end is closed to form a first bubble blocking part, and the side wall of the core body is provided with at least one first overflow port in the circumferential direction.

[0008] The core has a sealing ring platform on the outer side wall near the steam inlet. The flexible valve core is inserted into the first inner cavity from the inlet valve port. The sealing ring platform is squeezed by the inner wall of the inlet valve port and undergoes elastic deformation to form a radial seal. Steam enters the second inner cavity through the steam inlet in sequence. It is blocked by the first bubble blocking part and diffuses into the first inner cavity through the first overflow port and is discharged from the steam outlet.

[0009] This invention features a detachable connection between the flexible valve core and the valve seat, allowing users to directly pull out or insert the flexible valve core as a whole without disassembling hardware fasteners or breaking down the valve body structure. This maintains sealing reliability while avoiding the cumbersome process of disassembling and reassembling multiple components required for cleaning traditional multi-component valve bodies. Simultaneously, the first bubble-blocking section of the flexible valve core prevents direct steam inrush, forcing the steam to slow down and accumulate pressure in the second inner cavity. The steam then diffuses into the first inner cavity through circumferentially distributed overflow ports, effectively preventing the accumulation and overflow of high-viscosity foam.

[0010] As a further improvement to the above solution, the core body is further provided with a limiting ring platform on the outer side of the steam inlet. The sealing ring platform and the limiting ring platform are arranged sequentially along the upper and lower directions of the core body axis, forming a groove between them. When the flexible valve core is inserted into the first inner cavity of the valve seat, the groove and the valve inlet are engaged with each other, and the limiting ring platform is exposed outside the valve inlet to constrain the axial displacement of the flexible valve core. The design of the limiting ring platform and the groove ensures radial sealing under pressure deformation of the sealing ring platform, while constraining the axial displacement of the flexible valve core through engagement, avoiding sealing failure caused by steam pressure fluctuations. The exposed limiting ring platform provides intuitive installation positioning, balancing sealing stability and ease of disassembly and assembly, and adapting to frequent cleaning requirements.

[0011] As a further improvement to the above solution, the limiting ring platform is flush with the end face where the steam inlet is located, and the radial width of the limiting ring platform is greater than the radial width of the valve inlet. The fact that the limiting ring platform is flush with the end face of the steam inlet and its radial width is greater than that of the valve inlet, through physical interference, limits the excessive insertion of the flexible valve core, ensuring that the sealing ring platform is always within the preset compression deformation range. This avoids sealing failure caused by installation that is too deep or too shallow. At the same time, the exposed end face provides intuitive installation positioning and enhances the axial limiting capability against steam impact.

[0012] As a further improvement to the above solution, the flexible valve core is also provided with a second bubble-blocking part on the outer periphery of each first overflow port. The second bubble-blocking part extends from the outer wall of the core body in a direction away from the core body. The extended contour edge abuts against the cavity wall of the first inner cavity to form a partition. And / or, the extended contour edge is close to the cavity wall of the first inner cavity, and there is a gap between the two.

[0013] Each second bubble-blocking section is also provided with a second overflow port running vertically through it. The first overflow port and the corresponding second overflow port are staggered vertically within the first inner cavity. The second bubble-blocking section abuts against or gap-fits the wall of the first inner cavity to form a vapor path barrier, forcing the vapor to be deflected and deflected when flowing through the first and second overflow ports, thus extending the foam breaking stroke. At the same time, the staggered overflow ports disperse the vapor pressure. Combined with the cutting and collision of the foam by the bubble-blocking section, this significantly improves the multi-stage foam breaking efficiency and reduces the risk of high-viscosity foam accumulation and overflow.

[0014] As a further improvement to the above solution, a baffle channel is provided between the first overflow port and the second overflow port. The baffle channel is formed by the upper surface of the sealing ring, the outer wall of the core, the second bubble-blocking part, and the cavity wall of the first inner cavity surrounding each other. The baffle channel is connected to the steam inlet through the first overflow port and to the steam outlet through the second overflow port.

[0015] As a further improvement to the above solution, the second bubble-blocking part includes a bubble-blocking horizontal plate, and a first partition rib and a second partition rib connected to the bubble-blocking horizontal plate.

[0016] The bubble-blocking horizontal plate is located above the first overflow port, extending from the first overflow port along the circumferential sidewall of the core to the second overflow port; the first partition rib is located at the first overflow port, extending from the lower surface of the bubble-blocking horizontal plate to the upper surface of the sealing ring platform; the second partition rib is located at the second overflow port, extending from the upper surface of the bubble-blocking horizontal plate to the upper part of the outer sidewall of the core. The combination of the bubble-blocking horizontal plate and the partition rib forms an obstruction in the steam flow path, forcing the steam to change direction and slow down the flow rate, thus promoting foam breakage; the staggered rib layout strengthens the structural strength of the bubble-blocking horizontal plate and achieves longitudinal diversion of the foam, significantly improving foam collapse efficiency and reducing the risk of viscous foam accumulation and overflow.

[0017] As a further improvement to the above solution, the core, sealing ring, limiting ring, and second bubble-blocking part are integrally formed; there are multiple first overflow ports, and the number of corresponding second bubble-blocking parts and second overflow ports is adapted to the number of first overflow ports; each first overflow port and its corresponding second bubble-blocking part and second overflow port are arranged symmetrically around the core axis. The integral design integrates the core with the sealing, limiting, and bubble-blocking functional structural modules, avoiding gap residue or cumbersome disassembly and assembly problems caused by assembling multiple parts. With the centrally symmetrically distributed first overflow ports, second overflow ports, and second bubble-blocking parts, it ensures uniform steam flow and bubble breaking, and makes the overall structure compact and adaptable, facilitating quick one-handed insertion and removal for cleaning, reducing structural complexity and maintenance costs.

[0018] As a further improvement to the above solution, the cover includes an upper cover and a lower cover that are detachably fitted together, which together form a receiving cavity, and the valve seat is provided in the receiving cavity;

[0019] The steam outlet is located on the upper cover, and the valve inlet is located on the lower cover. The top of the inner cavity of the upper cover has a first annular flange extending downward around the steam outlet, and the valve inlet is folded upward to form a second annular flange. The two ends of the valve seat are respectively sleeved with the first annular flange and the second annular flange.

[0020] As a further improvement to the above solution, the valve seat has a cylindrical structure, and the upper end of the valve seat is provided with a retaining ring. Multiple retaining blocks with guide bevels are distributed circumferentially along the inner wall of the retaining ring. The inner sides of the multiple retaining blocks together engage and fix the outer wall of the first annular flange. The split design of the upper and lower covers, combined with the annular flange sleeve structure, enables modular assembly of the valve seat. The guide bevels of the retaining blocks guide the first annular flange to quickly align and embed. The circumferentially distributed retaining blocks ensure uniform stress distribution, avoiding installation misalignment or loosening caused by traditional screw fixing, improving the connection stability and assembly efficiency between the valve seat and the cover, and adapting to mass production needs.

[0021] An electric cooker includes an easily detachable integrated anti-overflow valve structure as described above. The flexible valve core design improves the ease of cleaning the anti-overflow valve structure. At the same time, the elastic seal and the bubble-blocking structure work together to greatly enhance the anti-overflow effect.

[0022] Beneficial effects:

[0023] (1) The integrated flexible valve core design enhances cleaning convenience: By making the flexible valve core and valve seat detachably connected, and utilizing the elastic compression between the sealing ring and the inner wall of the valve inlet to form a radial seal, users can directly pull out or insert the flexible valve core as a whole without disassembling the hardware fasteners or disassembling the valve body structure. This design maintains sealing reliability while avoiding the cumbersome process of disassembling and assembling each component step by step during cleaning of traditional multi-component valve bodies, significantly reducing cleaning difficulty and the risk of component loss. At the same time, it ensures that there are no dead corners inside the valve body, guaranteeing hygiene for long-term use.

[0024] (2) The synergistic effect of elastic sealing and bubble-blocking structure enhances the anti-overflow effect: While the sealing ring of the flexible valve core achieves radial sealing under pressure deformation, the first bubble-blocking part formed at its closed end can block the direct flow of steam, forcing the steam to slow down and accumulate pressure in the second inner cavity; the steam then diffuses into the first inner cavity through the circumferentially distributed overflow ports, and further breaks up the foam by using multi-directional airflow disturbance and collision with the wall of the flexible valve core. This design integrates the sealing function and the multi-stage bubble-breaking process into a single flexible valve core, simplifying the structure while improving the bubble-breaking efficiency, and effectively preventing the accumulation and overflow of high-viscosity foam. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the integrated anti-overflow valve structure provided in Embodiment 1.

[0026] Figure 2 This is a perspective view of the integrated anti-overflow valve structure provided in Embodiment 1;

[0027] Figure 3 This is an exploded view of the integrated anti-overflow valve structure provided in Embodiment 1.

[0028] Figure 4 This is a cross-sectional schematic diagram of the integrated anti-overflow valve structure provided in Embodiment 1.

[0029] Figure 5 This is a schematic diagram of the combination of valve seat and flexible valve core provided in Embodiment 1;

[0030] Figure 6 This is a perspective view of the flexible valve core provided in Embodiment 1;

[0031] Figure 7 This is a schematic diagram of the structure of the top cover provided in Embodiment 1;

[0032] Figure 8 This is a schematic diagram of the structure of the lower cover provided in Embodiment 1;

[0033] Figure 9 This is a cross-sectional schematic diagram of the electric cooker provided in Embodiment 2;

[0034] Figure 10 This is a cross-sectional schematic diagram of the electric heating cooker with steaming rack provided in Embodiment 2;

[0035] Figure label:

[0036] Y1, Integrated anti-overflow valve structure; G1, Pot body; G2, Steaming rack;

[0037] 1. Cover; K1, Steam outlet; K2, Valve inlet; R1, Receptacle;

[0038] 11. Top cover; 111. First annular flange;

[0039] 12. Lower cover; 121. Second annular flange;

[0040] 2. Valve seat; Q1. First inner cavity; 21. Snap ring part; 211. Snap block;

[0041] 3. Flexible valve core; Q2. Second inner cavity; K3. Steam inlet;

[0042] 31. Core; 311. First bubble-blocking section; 312. First overflow port;

[0043] 32. Sealing ring platform;

[0044] 33. Limiting ring platform; 331. Groove;

[0045] 34. Second bubble-blocking section; 341. Bubble-blocking horizontal plate; 342. First partition rib; 343. Second partition rib;

[0046] 35. Second overflow outlet;

[0047] 36. Baffle channel. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] In the description of this utility model, it should be understood that the term "several" means "at least one", and the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "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 utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0050] Example 1:

[0051] like Figures 1-8 As shown, this embodiment provides an easily detachable integrated anti-overflow valve structure, including a cover 1 with a steam outlet K1 and a valve inlet K2; a valve seat 2 is provided inside the cover 1, and the valve seat 2 has a first inner cavity Q1 that runs through the middle, with the two ends of the first inner cavity Q1 respectively connected to the steam outlet K1 and the valve inlet K2.

[0052] In this embodiment, the cover 1 includes an upper cover 11 and a lower cover 12 that are detachably fitted together, and the two together form a receiving cavity R1, in which the valve seat 2 is provided;

[0053] The steam outlet K1 is located on the upper cover 11, and the valve inlet K2 is located on the lower cover 12. A first annular flange 111 extends downwards around the steam outlet K1 from the top of the inner cavity of the upper cover 11, and the valve inlet K2 folds upwards to form a second annular flange 121. The two ends of the valve seat 2 are respectively sleeved with the first annular flange 111 and the second annular flange 121. Specifically, the valve seat 2 has a cylindrical structure, and its upper end is provided with a retaining ring 21. Multiple retaining blocks 211 with guide bevels are distributed circumferentially along the inner wall of the retaining ring 21. The inner sides of the multiple retaining blocks 211 together engage and fix the outer wall of the first annular flange 111. The split design of the upper cover 11 and the lower cover 12, combined with the annular flange sleeve structure, enables the modular assembly of the valve seat 2. The guide slope of the snap-fit ​​block 211 guides the first annular flange 111 to quickly align and embed. The circumferentially distributed snap-fit ​​blocks 211 ensure uniform stress distribution, avoid installation misalignment or loosening caused by traditional screw fixing, improve the connection stability and assembly efficiency between the valve seat 2 and the cover 1, and meet the needs of mass production.

[0054] It also includes a flexible valve core 3, which is detachably connected to the first inner cavity Q1 of the valve seat 2; in this embodiment, the flexible valve core 3 is made of silicone. The flexible valve core 3 includes a core body 31, and a second inner cavity Q2 is formed inside the core body 31. One end of the core body 31 is provided with an inlet K3 communicating with the second inner cavity Q2, and the other end is closed to form a first bubble-blocking part 311. The side wall of the core body 31 is provided with at least one first overflow port 312 in the circumferential direction; the first overflow port 312 can be a square hole, a round hole or an irregular hole.

[0055] The core 31 has a sealing ring platform 32 on its outer side wall near the steam inlet K3. The flexible valve core 3 is inserted into the first inner cavity Q1 from the valve inlet K2. The sealing ring platform 32 is squeezed by the inner wall of the valve inlet K2 and undergoes elastic deformation to form a radial seal. Steam enters the second inner cavity Q2 through the steam inlet K3 in sequence. It is blocked by the first bubble blocking part 311 and diffuses into the first inner cavity Q1 through the first overflow port 312, and is discharged from the steam outlet K1.

[0056] In this embodiment, the core 31 is further provided with a limiting ring platform 33 on the outer side of the steam inlet K3. The sealing ring platform 32 and the limiting ring platform 33 are arranged sequentially along the upper and lower directions of the core 31 axis, forming a groove 331 between them. When the flexible valve core 3 is inserted into the first inner cavity Q1 of the valve seat 2, the groove 331 engages with the valve inlet K2, and the limiting ring platform 33 protrudes outside the valve inlet K2 to constrain the axial displacement of the flexible valve core 3. The design of the engagement between the limiting ring platform 33 and the groove 331 ensures that the sealing ring platform 32 achieves radial sealing under pressure deformation, while constraining the axial displacement of the flexible valve core 3 through engagement, avoiding sealing failure caused by steam pressure fluctuations. Furthermore, the exposed limiting ring platform 33 provides intuitive installation positioning, balancing sealing stability and ease of disassembly and assembly, and adapting to frequent cleaning requirements.

[0057] Specifically, the limiting ring 33 is flush with the end face of the steam inlet K3, and the radial width of the limiting ring 33 is greater than the radial width of the valve inlet K2. The fact that the limiting ring 33 is flush with the end face of the steam inlet K3 and has a greater radial width than the valve inlet K2, through physical interference, limits the excessive insertion of the flexible valve core 3, ensuring that the sealing ring 32 is always within the preset compression deformation range. This avoids sealing failure due to excessively deep or shallow installation, while the exposed end face provides intuitive installation positioning and enhances the axial limiting capability against steam impact.

[0058] In this embodiment, the flexible valve core 3 is also provided with a second bubble-blocking part 34 on the outer periphery of each first overflow port 312. The second bubble-blocking part 34 extends from the outer wall of the core body 31 in a direction away from the core body 31. The extended contour edge abuts against the cavity wall of the first inner cavity Q1 to form a partition. And / or, the extended contour edge is close to the cavity wall of the first inner cavity Q1, and there is a gap between the two.

[0059] Specifically, the second bubble-blocking section 34 includes a bubble-blocking horizontal plate 341, and a first partition rib 342 and a second partition rib 343 connected to the bubble-blocking horizontal plate 341. The bubble-blocking horizontal plate 341 is located above the first overflow port 312 and extends from the first overflow port 312 along the circumferential sidewall of the core 31 to the second overflow port 35. In the radial direction, the edge of the bubble-blocking horizontal plate 341 abuts against the cavity wall of the first inner cavity Q1. The first partition rib 342 is located at the first overflow port 312 and extends from the lower surface of the bubble-blocking horizontal plate 341 to the upper surface of the sealing ring platform 32. In the radial direction, the first partition rib 342 has a gap with the first inner cavity Q1. The second partition rib 343 is located at the second overflow port 35 and extends from the upper surface of the bubble-blocking horizontal plate 341 to the upper part of the outer sidewall of the core 31. In the radial direction, the second partition rib 343 has a gap with the first inner cavity Q1.

[0060] The combination of the bubble-blocking horizontal plate 341 and the partition rib plate forms an obstruction in the steam flow path, forcing the steam to change direction and slow down the flow rate, thus promoting the bursting of foam. The staggered rib plate layout strengthens the structural strength of the bubble-blocking horizontal plate 341 on the one hand, and achieves longitudinal diversion of foam on the other hand, significantly improving the foam collapse efficiency and reducing the risk of viscous foam accumulation and overflow.

[0061] Each of the second bubble-blocking sections 34 is also provided with a second overflow port 35 extending through the vertical direction. The first overflow port 312 and the corresponding second overflow port 35 are staggered vertically within the first inner cavity Q1. Specifically, a baffle channel 36 is provided between the first overflow port 312 and the second overflow port 35. The baffle channel 36 is formed by the upper surface of the sealing ring platform 32, the outer wall of the core 31, the second bubble-blocking section 34, and the cavity wall of the first inner cavity Q1. The baffle channel 36 is interconnected with the steam inlet K3 through the first overflow port 312 and with the steam outlet K1 through the second overflow port 35.

[0062] The second bubble-blocking part 34 abuts against or gaps with the wall of the first inner cavity Q1 to form a steam path isolation, forcing the steam to turn and deflect when it flows through the first overflow port 312 and the second overflow port 35, extending the foam breaking stroke. At the same time, the upper and lower staggered overflow ports disperse the steam pressure. Combined with the cutting and collision of the foam by the bubble-blocking part, the multi-stage foam breaking efficiency is significantly improved, and the risk of high viscosity foam accumulation and overflow is reduced.

[0063] The core 31, sealing ring 32, limiting ring 33, and second bubble-blocking part 34 are integrally formed. Multiple first overflow ports 312 are provided; in this embodiment, two first overflow ports 312 are preferably provided. The number of corresponding second bubble-blocking parts 34 and second overflow ports 35 is adapted to the number of first overflow ports 312. Each first overflow port 312, and the corresponding second bubble-blocking parts 34 and second overflow ports 35, are arranged symmetrically around the axis of the core 31. The integral design integrates the core 31 with the sealing, limiting, and bubble-blocking functional structural modules, avoiding gaps or cumbersome disassembly and assembly problems caused by assembling multiple parts. Combined with the symmetrically distributed first overflow ports 312, second overflow ports 35, and second bubble-blocking parts 34, it ensures uniform steam flow and bubble breaking, while also making the overall structure compact and adaptable, facilitating quick one-handed insertion and removal for cleaning, reducing structural complexity and maintenance costs.

[0064] According to the above-described solution of this utility model, during the cooking process of rice in an electric cooker (such as an electric rice cooker), steam carrying foam enters the second inner cavity Q2 of the flexible valve core 3 through the steam inlet K3 of the cover 1. After being blocked by the first bubble-blocking part 311, the steam diffuses laterally to the first inner cavity Q1 of the valve seat 2 through the circumferentially distributed first overflow port 312, collides with the second bubble-blocking part 34, and is deflected to the staggered second overflow port 35, further breaking up the foam; then the steam is discharged from the steam outlet K1.

[0065] During disassembly and assembly: The user pulls the flexible valve core 3 out of the first inner cavity Q1 of the valve seat 2, and the disassembly can be completed without tools; after cleaning, it is aligned with the valve inlet K2 and pressed in. The sealing ring 32 automatically resets and seals by engaging with the groove 331 through elastic deformation, thus achieving quick installation.

[0066] In this embodiment, by making the flexible valve core 3 and the valve seat 2 detachably connected, the user can directly pull out or insert the flexible valve core 3 as a whole without disassembling the hardware fasteners or disassembling the valve body structure. This maintains the reliability of the seal and avoids the cumbersome process of disassembling and assembling each component during cleaning of traditional multi-component valve bodies. At the same time, the first bubble-blocking part 311 of the flexible valve core 3 can block the direct flow of steam, forcing the steam to slow down and accumulate pressure in the second inner cavity Q2; the steam then diffuses to the first inner cavity Q1 through the circumferentially distributed overflow ports, effectively preventing the accumulation and overflow of high-viscosity foam.

[0067] Example 2:

[0068] One of the embodiments of this utility model is the same as that of Embodiment 1. The main technical solution of this embodiment is the same as that of Embodiment 1. Features not explained in this embodiment are explained in Embodiment 1 and will not be repeated here.

[0069] like Figure 9 As shown, this embodiment provides an electric cooker, which can be an electric saucepan or a rice cooker, including a pot body and an easily detachable integrated anti-overflow valve structure as described in Embodiment 1. This electric cooker improves the ease of cleaning the anti-overflow valve structure through the detachable design of the flexible valve core 3; at the same time, the elastic seal and the bubble-blocking structure work together to greatly enhance the anti-overflow effect.

[0070] like Figure 10 As shown, in other embodiments, at least one steaming rack can be installed at the upper opening of the pot body, and the top of the uppermost steaming rack is provided with the integrated anti-overflow valve structure.

[0071] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A disassembleable, integrated anti-overflow valve structure, comprising a cover with a steam outlet and a valve inlet; characterized in that: The cover body is provided with a valve seat, the valve seat has a first inner cavity that runs through the middle, and the two ends of the first inner cavity are respectively connected to the steam outlet and the valve inlet; It also includes a flexible valve core, which is detachably connected to the first inner cavity of the valve seat; the flexible valve core includes a core body, the core body forms a second inner cavity, one end of which is provided with an inlet communicating with the second inner cavity, the other end is closed to form a first bubble blocking part, and the side wall of the core body is provided with at least one first overflow port in the circumferential direction. The core has a sealing ring platform on the outer side wall near the steam inlet. The flexible valve core is inserted into the first inner cavity from the inlet valve port. The sealing ring platform is squeezed by the inner wall of the inlet valve port and undergoes elastic deformation to form a radial seal. Steam enters the second inner cavity through the steam inlet in sequence. It is blocked by the first bubble blocking part and diffuses into the first inner cavity through the first overflow port and is discharged from the steam outlet.

2. The easily detachable integrated anti-overflow valve structure according to claim 1, characterized in that, The core is also provided with a limiting ring platform on the outside of the steam inlet. The sealing ring platform and the limiting ring platform are arranged sequentially along the upper and lower directions of the core axis, forming a groove between them. When the flexible valve core is inserted into the first inner cavity of the valve seat, the groove and the valve inlet are engaged with each other, and the limiting ring platform is exposed outside the valve inlet to constrain the axial displacement of the flexible valve core.

3. The easily detachable integrated anti-overflow valve structure according to claim 2, characterized in that, The limiting ring platform is flush with the end face where the steam inlet is located, and the radial width of the limiting ring platform is greater than the radial width of the valve inlet.

4. The easily detachable integrated anti-overflow valve structure according to claim 2, characterized in that, The flexible valve core is also provided with a second bubble-blocking part on the outer periphery of each first overflow port. The second bubble-blocking part extends from the outer wall of the core body in a direction away from the core body. The extended contour edge abuts against the cavity wall of the first inner cavity to form a partition. And / or, the extended contour edge is close to the cavity wall of the first inner cavity, and there is a gap between the two. Each second bubble-blocking section is also provided with a second overflow port that runs through the upper and lower directions on its side. The first overflow port and the corresponding second overflow port are arranged alternately in the upper and lower directions in the first inner cavity.

5. The easily detachable integrated anti-overflow valve structure according to claim 4, characterized in that, A baffle channel is provided between the first overflow port and the second overflow port. The baffle channel is formed by the upper surface of the sealing ring, the outer wall of the core, the second bubble-blocking part and the cavity wall of the first inner cavity surrounding each other. The baffle channel is connected to the steam inlet through the first overflow port and to the steam outlet through the second overflow port.

6. The easily detachable integrated anti-overflow valve structure according to claim 5, characterized in that, The second bubble-blocking section includes a bubble-blocking horizontal plate, and a first partition rib and a second partition rib connected to the bubble-blocking horizontal plate. The bubble-blocking horizontal plate is located above the first overflow port and extends from the first overflow port along the circumferential sidewall of the core to the second overflow port; the first partition rib is located at the first overflow port and extends from the lower surface of the bubble-blocking horizontal plate to the upper surface of the sealing ring platform; the second partition rib is located at the second overflow port and extends from the upper surface of the bubble-blocking horizontal plate to the upper part of the outer sidewall of the core.

7. The easily detachable integrated anti-overflow valve structure according to claim 6, characterized in that, The core, sealing ring, limiting ring and second bubble-blocking part are integrally formed; The first overflow port has multiple parts, and the number of corresponding second bubble-blocking parts and second overflow ports is adapted to the number of the first overflow ports; each first overflow port and the corresponding second bubble-blocking part and second overflow port are arranged symmetrically around the core axis.

8. The easily detachable integrated anti-overflow valve structure according to claim 1, characterized in that, The cover includes an upper cover and a lower cover that are detachably fitted together, which together enclose a receiving cavity, and the valve seat is provided inside the receiving cavity; The steam outlet is located on the upper cover, and the valve inlet is located on the lower cover. The top of the inner cavity of the upper cover has a first annular flange extending downward around the steam outlet, and the valve inlet is folded upward to form a second annular flange. The two ends of the valve seat are respectively sleeved with the first annular flange and the second annular flange.

9. The easily detachable integrated anti-overflow valve structure according to claim 8, characterized in that, The valve seat has a cylindrical structure, and the upper end of the valve seat is provided with a retaining ring. The inner wall of the retaining ring is provided with a plurality of retaining blocks with guide slopes distributed circumferentially. The inner sides of the plurality of retaining blocks are jointly engaged and fixed to the outer wall of the first annular flange.

10. An electric cooker, characterized in that, Includes an easily detachable, integrated anti-overflow valve structure as described in any one of claims 1-9.

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