Micro-pressure cooker cover and micro-pressure electric rice cooker thereof

Abstract

The utility model discloses a kind of micro-pressure cooker covers, including cover and pressure-limiting valve, the pressure-limiting valve includes the exhaust pipe being arranged in exhaust port, the pressure-limiting valve cover is capped in the upper exhaust pipe, the sealing rubber head that can be plugged to the air outlet of exhaust pipe is arranged in the pressure-limiting valve cover, locking assembly is arranged in the lower end of exhaust pipe and can be fixed in the exhaust port in exhaust pipe, the pressure-limiting valve cover is equipped with the guide structure that can make the pressure-limiting valve cover move up and down after rotating between the pressure-limiting valve cover and cover, and the top of pressure-limiting valve cover is equipped with exhaust hole. Also disclosed is a kind of micro-pressure rice cooker, including pot body, the pot body is detachably connected with the micro-pressure cooker cover. Thus when heating, when air pressure reaches above the set value of pressure-limiting valve, sealing rubber head will be pressed up, discharge pressure outside set value, to achieve the effect of micro-pressure cooking, so that cooking food is more uniform, greatly improved on taste, meet consumer pursuit of cooking.

Description

Technical Field

[0001] This utility model relates to the technical field of small household appliances, and in particular to a micro-pressure pot lid and a micro-pressure rice cooker thereof. Background Technology

[0002] Rice cookers have become a common cooking product in everyday households, and their ease of use has been widely recognized by consumers. Their appearance and styles are also becoming increasingly diverse, bringing more cooking experiences and fun to our families.

[0003] Most rice cookers on the market currently lack a micro-pressure function. However, with the addition of micro-pressure, rice grains are cooked better, absorbing more water and resulting in more uniform texture, perfectly meeting the cooking needs of many consumers. Although a micro-pressure rice cooker is disclosed in patent application CN221383230U, it cannot automatically release pressure, making it inconvenient to open the lid during cooking. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a micro-pressure pot lid that enables micro-pressure cooking and allows for opening the lid during cooking, as well as a micro-pressure rice cooker.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A pressure cooker lid includes a lid body, an exhaust port on the lid body, and a pressure limiting valve disposed within the exhaust port. The pressure limiting valve includes an exhaust pipe disposed within the exhaust port, a pressure limiting valve cover covering the exhaust pipe, a sealing rubber head disposed within the pressure limiting valve cover and capable of blocking the exhaust port of the exhaust pipe, and a locking assembly disposed at the lower end of the exhaust pipe and capable of fixing the exhaust pipe within the exhaust port. A guide structure is provided between the pressure limiting valve cover and the lid body, allowing the pressure limiting valve cover to move up and down after rotation. An exhaust hole is provided at the top of the pressure limiting valve cover.

[0007] In a preferred embodiment of the present invention, the guide structure includes a connecting part disposed on the cover and capable of cooperating with the pressure relief valve cover, a plurality of guide protrusions disposed on the bottom surface of the connecting part, and a plurality of abutting protrusions disposed on the bottom of the pressure relief valve cover and capable of abutting against the guide protrusions, and the exhaust port is disposed on the bottom surface of the connecting part.

[0008] In a preferred embodiment of this utility model, a limiting groove is provided on the inner sidewall of the connecting part, and a limiting protrusion that can move within the limiting groove is provided on the outer sidewall of the pressure limiting valve cover, wherein the limiting groove is arc-shaped.

[0009] In a preferred embodiment of this utility model, the outer wall of the pressure relief valve cover is provided with a screwing handle for screwing the pressure relief valve cover.

[0010] In a preferred embodiment of this utility model, the pressure limiting valve cover is provided with a counterweight block for increasing the weight of the pressure limiting valve cover.

[0011] In a preferred embodiment of this utility model, the counterweight is provided with an exhaust pipe retainer spring that is locked to the outside of the exhaust pipe. The counterweight includes a cylinder and a bottom cover covering the bottom of the cylinder. A groove is provided on the bottom of the inner wall of the cylinder so that the bottom cover forms a groove for fixing the exhaust pipe retainer spring after it is placed on the cylinder.

[0012] In a preferred embodiment of this utility model, the locking assembly includes a silicone sealing ring fitted on the exhaust pipe and located below the cover, a washer fitted on the exhaust pipe and covering the silicone sealing ring, and a nut that presses the silicone sealing ring and the washer onto the cover. The nut is provided with a plurality of air inlets that can communicate with the air inlet of the exhaust pipe, and the lower end of the exhaust pipe is provided with an annular groove that mates with the silicone sealing ring.

[0013] In a preferred embodiment of the present invention, a recessed area is provided on the bottom surface of the connecting part, a gasket is provided in the recessed area, and a limiting protrusion is provided on the outer side wall of the exhaust pipe to press the gasket into the recessed area.

[0014] This utility model also provides a micro-pressure rice cooker, including a pot body, a micro-pressure lid as described above, handles on both the left and right sides of the upper end of the pot body, a first snap-fit ​​groove on the inner side of the upper edge of the pot body and at the handle, a cover plate locking block that can be inserted into the first snap-fit ​​groove on both the left and right sides of the lid, and a locking cover plate that can move left and right to restrict the cover plate locking block from disengaging from the first snap-fit ​​groove on the handle.

[0015] In a preferred embodiment of this utility model, the bottom of the cover is provided with a snap-fit ​​block, the inner side of the snap-fit ​​block is an L-shaped insertion part, the upper end of the pot body is provided with a second snap-fit ​​groove that cooperates with the snap-fit ​​block, and the inner side of the second snap-fit ​​groove is provided with a silicone plug for separating the second snap-fit ​​groove from the inside of the pot body.

[0016] The beneficial effects of this utility model are as follows: The micro-pressure cooker lid includes a lid body and a pressure limiting valve. The pressure limiting valve includes an exhaust pipe, a pressure limiting valve cover, a sealing rubber head, and a locking assembly. A guide structure is provided between the pressure limiting valve cover and the lid body, allowing the pressure limiting valve cover to move up and down after rotation. The top of the pressure limiting valve cover has an exhaust hole. During heating, the pressure inside the pot gradually accumulates. When the pressure reaches or exceeds the set value of the pressure limiting valve, the sealing rubber head is pushed up by the pressure, releasing the pressure beyond the set value, thus achieving a micro-pressure effect. This ensures uniform pressure inside the pot, guaranteeing that cooking is performed at the set pressure value. This achieves the cooking function of a micro-pressure rice cooker, resulting in more even cooking and significantly improved taste, satisfying consumers' cooking demands. Simultaneously, the guide structure allows the pressure limiting valve cover to rotate, causing the sealing rubber head to move up and down, thereby releasing the pressure inside the pot and facilitating the user's opening of the lid during cooking. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the micro-pressure pot lid of this utility model;

[0018] Figure 2 This is an exploded view of the micro-pressure pot lid of this utility model;

[0019] Figure 3 This is a cross-sectional view of the micro-pressure pot lid of this utility model;

[0020] Figure 4 This is the intention of the cover body in this utility model;

[0021] Figure 5 This is an assembly diagram of the pressure limiting valve cover, sealing rubber head, counterweight block and exhaust pipe retaining spring in this utility model;

[0022] Figure 6 This is an assembly diagram of the exhaust pipe, gasket, and locking assembly in this utility model;

[0023] Figure 7 This is a schematic diagram of the micro-pressure rice cooker of this utility model;

[0024] Figure 8 This is a schematic diagram of the bottom side of the micro-pressure pot lid of this utility model;

[0025] Figure 9 This is an exploded view of the micro-pressure pot lid of this utility model located at the handle;

[0026] Figure 10 This is a cross-sectional view of the pot body located at the handle in this utility model;

[0027] Figure 11 This is a cross-sectional view of the pot body located at the second snap-fit ​​groove in this utility model. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0029] Reference Figures 1 to 6 A micro-pressure cooker lid includes a lid body 1, a vent 11 on the lid body 1, and a pressure limiting valve 2 inside the vent 11. The pressure limiting valve 2 includes a vent pipe 21 inside the vent 11, a pressure limiting valve cover 22 covering the vent pipe 21, a sealing rubber head 23 inside the pressure limiting valve cover 22 that can block the vent outlet of the vent pipe 21, and a locking assembly 24 at the lower end of the vent pipe 21 that can fix the vent pipe 21 inside the vent 11. A guide structure 3 is provided between the pressure limiting valve cover 22 and the lid body 1, allowing the pressure limiting valve cover 22 to move up and down after rotation. The top of the pressure limiting valve cover 22 has a vent hole 221. During heating, the pressure inside the pot will gradually accumulate. When the pressure reaches or exceeds the set value of the pressure limiting valve 2, the sealing rubber head 23 will be pushed up by the pressure, releasing the pressure beyond the set value, thereby achieving a micro-pressure effect and ensuring uniform pressure inside the pot, guaranteeing that the cooking process will be at the set pressure value. This achieves the cooking effect of a low-pressure rice cooker, resulting in more even cooking and significantly improved taste, satisfying consumers' cooking demands. Simultaneously, the guide structure 3 rotates the pressure-limiting valve cover 22, causing it to move the sealing head 23 up and down, thereby releasing the pressure inside the pot body 4 and facilitating the user's opening of the lid during cooking.

[0030] In this design, the guide structure 3 includes a connecting part 31 disposed on the cover 1 and capable of cooperating with the pressure relief valve cover 22, several guide protrusions 32 disposed on the bottom surface of the connecting part 31, and several abutting protrusions 33 disposed on the bottom of the pressure relief valve cover 22 and capable of abutting against the guide protrusions 32. The exhaust port 11 is disposed on the bottom surface of the connecting part 31. Specifically, the contact surfaces of the guide protrusions 32 and the abutting protrusions 33 are both arc-shaped. Thus, by rotating the pressure relief valve cover 22, the guide protrusions 32 and the abutting protrusions 33 will slowly approach each other until they abut against each other. At this time, the pressure relief valve cover 22 will slowly rise, and the sealing head 23 will gradually move away from the exhaust port of the exhaust pipe 21, no longer blocking it. When the pressure relief valve cover 22 is rotated back, the guide protrusions 32 and the abutting protrusions 33 will slowly move away from each other until they are completely separated. At this time, the pressure relief valve cover 22 will slowly descend, and the sealing head 23 will gradually approach the exhaust port of the exhaust pipe 21, and then block it.

[0031] In this design, the inner wall of the connecting part 31 is provided with a limiting groove 311, and the outer wall of the pressure relief valve cover 22 is provided with a limiting protrusion 222 that can move within the limiting groove 311. The limiting groove 311 is arc-shaped with a corresponding arc of 45 degrees. Thus, when the limiting protrusion 222 moves to both ends of the limiting groove 311, it corresponds to the highest and lowest points of the displacement of the sealing head 23.

[0032] In this solution, the outer wall of the pressure limiting valve cover 22 is provided with a screwing handle 223 for screwing the pressure limiting valve cover 22. By screwing the handle 223 to rotate the pressure limiting valve cover 22, the steam discharged from the vent hole 221 can be prevented from scalding the hands.

[0033] In this design, the pressure relief valve cover 22 is equipped with a counterweight 25 to increase its weight, thereby changing the weight of the pressure relief valve cover 22 and thus altering the set value of the pressure relief valve 2. The counterweight 25 is hollow, and a sealing head 23 is disposed within it, with the sealing head 23 connected to the pressure relief valve cover 22 via a connector.

[0034] In this design, the counterweight 25 is equipped with an exhaust pipe retainer 26 that engages with the outside of the exhaust pipe 21. The counterweight 25 includes a cylinder 251 and a bottom cover 252 covering the bottom of the cylinder 251. A groove 2511 is provided on the bottom of the inner wall of the cylinder 251, so that the bottom cover 252, when placed on the cylinder 251, forms a groove 2511 for fixing the exhaust pipe retainer 26. The counterweight 25 can be fixed inside the pressure relief valve cover 22 by snap-fit ​​or adhesive. This exhaust pipe retainer 26 restricts the position between the pressure relief valve cover 22 and the exhaust pipe 21, preventing the pressure relief valve cover 22 from popping out of the connecting part 31 during use, thus limiting the position of the pressure relief valve cover 22 at its highest point within the connecting part 31. Furthermore, it allows for positioning and fixing of the exhaust pipe 21 during assembly.

[0035] In this design, the locking assembly 24 includes a silicone sealing ring 241 fitted onto the exhaust pipe 21 and located below the cover 1, a washer 242 fitted onto the exhaust pipe 21 and covering the silicone sealing ring 241, and a nut 243 that presses the silicone sealing ring 241 and the washer 242 onto the cover 1, thereby fixing the exhaust pipe 21 inside the exhaust port 11. Furthermore, the nut 243 has several air inlet holes 2431 that communicate with the air inlet of the exhaust pipe 21, preventing the nut 243 from blocking the air inlet of the exhaust pipe 21 and also preventing foreign objects from entering and causing blockage. The lower end of the exhaust pipe 21 has an annular groove 211 that mates with the silicone sealing ring 241, allowing the silicone sealing ring 241 to fit within the annular groove 211 of the exhaust pipe 21, thus enhancing its sealing performance.

[0036] In this solution, a recessed area 312 is provided on the bottom surface of the connecting part 31, and a gasket is provided in the recessed area 312. A limiting protrusion 212 is provided on the outer side wall of the exhaust pipe 21 to press the gasket into the recessed area 312. In this way, by cooperating with the locking assembly 24, the exhaust pipe 21 can be more securely fixed in the exhaust port 11.

[0037] Reference Figures 7 to 11 This utility model also provides a micro-pressure rice cooker, including a pot body 4, a micro-pressure lid as described above, and handles 41 on both the left and right sides of the upper end of the pot body 4. A first latching groove 42 is provided on the inner side of the upper edge of the pot body 4, located at the handle 41. A lid locking block 12, which can be inserted into the first latching groove 42, is provided on both the left and right sides of the lid body 1. A locking plate 43, which can move left and right to prevent the locking block 12 from disengaging from the first latching groove 42, is provided on the handle 41. In this way, the lid body 1 is locked to the pot body 4 by the locking plates 43 on both sides, which can prevent the lid body 1 from being opened due to accidental operation by the consumer during cooking, improving safety during cooking and extending the product's lifespan.

[0038] In this design, the bottom of the lid 1 is provided with a snap-fit ​​block 13, the inner side of which is an L-shaped insert. The upper end of the pot body 4 is provided with a second snap-fit ​​groove 44 that cooperates with the snap-fit ​​block 13. The inner side of the second snap-fit ​​groove 44 is provided with a silicone plug 5 for separating the second snap-fit ​​groove 44 from the interior of the pot body 4. This snap-fit ​​structure allows the lid 1 to be more securely locked onto the pot body 4, preventing them from falling off. Simultaneously, the silicone plug 5 prevents water vapor from dripping into the interior of the pot body 4 and damaging internal parts.

[0039] In this solution, the pot body 4 includes a body assembly, a pot inner liner, and a handle 41 assembly. The body assembly consists of a control panel assembly, an outer shell, an inner liner, a heat insulation cover, a sensor assembly, a heating assembly, and an input socket. The control panel assembly is mounted on the outer shell, the sensor is fitted on the heat insulation cover, the heat insulation cover is fitted on the inner liner, the heating plate is fitted on the inner liner and fastened to the heat insulation cover, and the inner liner is fitted inside the outer shell to form the heating body assembly.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pressure cooker lid, comprising a lid body (1), a vent (11) disposed on the lid body (1), and a pressure limiting valve (2) disposed within the vent (11), characterized in that, The pressure relief valve (2) includes an exhaust pipe (21) disposed in the exhaust port (11), a pressure relief valve cover (22) covering the exhaust pipe (21), a sealing rubber head (23) disposed in the pressure relief valve cover (22) and capable of sealing the exhaust port (21), and a locking assembly (24) disposed at the lower end of the exhaust pipe (21) and capable of fixing the exhaust pipe (21) in the exhaust port (11). A guide structure (3) is provided between the pressure relief valve cover (22) and the cover body (1) to allow the pressure relief valve cover (22) to move up and down after rotation. An exhaust hole (221) is provided on the top of the pressure relief valve cover (22).

2. The micro-pressure cooker lid according to claim 1, characterized in that, The guide structure (3) includes a connecting part (31) disposed on the cover (1) and cooperating with the pressure relief valve cover (22), a number of guide protrusions (32) disposed on the bottom surface of the connecting part (31), and a number of abutting protrusions (33) disposed on the bottom of the pressure relief valve cover (22) and abutting against the guide protrusions (32). The exhaust port (11) is disposed on the bottom surface of the connecting part (31).

3. A micro-pressure cooker lid according to claim 2, characterized in that, The inner wall of the connecting part (31) is provided with a limiting groove (311), and the outer wall of the pressure limiting valve cover (22) is provided with a limiting protrusion (222) that can move within the limiting groove (311). The limiting groove (311) is arc-shaped.

4. A micro-pressure cooker lid according to claim 1, characterized in that, The outer wall of the pressure relief valve cover (22) is provided with a screw handle (223) for screwing the pressure relief valve cover (22).

5. A micro-pressure cooker lid according to claim 1, characterized in that, The pressure relief valve cover (22) is provided with a counterweight (25) for increasing the weight of the pressure relief valve cover (22).

6. A micro-pressure cooker lid according to claim 5, characterized in that, The counterweight (25) is provided with an exhaust pipe retainer (26) that is attached to the outside of the exhaust pipe (21). The counterweight (25) includes a cylinder (251) and a bottom cover (252) covering the bottom of the cylinder (251). The bottom of the inner sidewall of the cylinder (251) is provided with a groove (2511) so that the bottom cover (252) forms a groove (2511) for fixing the exhaust pipe retainer (26) after it is placed on the cylinder (251).

7. A micro-pressure cooker lid according to any one of claims 2 to 6, characterized in that, The locking assembly (24) includes a silicone sealing ring (241) fitted on the exhaust pipe (21) and located below the cover (1), a washer (242) fitted on the exhaust pipe (21) and covering the silicone sealing ring (241), and a nut (243) pressing the silicone sealing ring (241) and the washer (242) onto the cover (1). The nut (243) is provided with a plurality of air inlets (2431) that can communicate with the air inlet of the exhaust pipe (21). The lower end of the exhaust pipe (21) is provided with an annular groove (211) that cooperates with the silicone sealing ring (241).

8. A micro-pressure cooker lid according to claim 7, characterized in that, The bottom surface of the connecting part (31) is provided with a recessed area (312), and a gasket (27) is provided in the recessed area (312). The outer side wall of the exhaust pipe (21) is provided with a limiting protrusion (212) that can press the gasket (27) into the recessed area (312).

9. A low-pressure electric rice cooker, comprising a pot body (4), characterized in that, The pot body (4) is provided with a micro-pressure pot lid as described in any one of claims 1 to 8. The upper left and right sides of the pot body (4) are provided with handles (41). The inner side of the upper edge of the pot body (4) and located at the handle (41) is provided with a first snap-fit ​​groove (42). The left and right sides of the lid body (1) are provided with a lid locking block (12) that can be inserted into the first snap-fit ​​groove (42). The handle (41) is provided with a locking plate (43) that can move left and right to restrict the lid locking block (12) from disengaging from the first snap-fit ​​groove (42).

10. A micro-pressure rice cooker according to claim 9, characterized in that, The bottom of the cover (1) is provided with a buckle block (13), the inner side of the buckle block (13) is an L-shaped insertion part, and the upper end of the pot body (4) is provided with a second buckle groove (44) that cooperates with the buckle block (13). The inner side of the second buckle groove (44) is provided with a silicone plug (5) for separating the second buckle groove (44) from the inside of the pot body (4).

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