Exhaust structure for steam port of electric rice cooker

Abstract

The utility model discloses a kind of exhaust structure for electric rice cooker steam port. It includes recess, micro-pressure cover plate and exhaust casing: recess is arranged in the top surface of electric rice cooker cover, the bottom surface of recess is equipped with the steam outlet that is communicated with electric rice cooker inside;Micro-pressure cover plate, rotation is set in the top of steam outlet and covers steam outlet, micro-pressure cover plate can block / open steam outlet;Exhaust casing is detachably set in recess, exhaust casing includes top plate and the first surround frame of setting in the bottom surface of top plate, first surround frame and top plate form containing space, micro-pressure cover plate is located in containing space, the bottom surface of top plate is also equipped with the second surround frame of limiting the rotation range of micro-pressure cover plate. The utility model can improve the quality of cooking.

Description

Technical Field

[0001] This utility model relates to the field of rice cookers, and in particular to an exhaust structure for the steam vent of a rice cooker. Background Technology

[0002] A rice cooker is an appliance primarily used for cooking rice. The ideal cooking process in a rice cooker consists of the following stages: water intake, boiling, simmering, and keep-warm. During the water intake stage, the ideal pressure is atmospheric pressure (normal atmospheric pressure); during the boiling stage, the ideal pressure is 105 kPa–112 kPa; during the simmering stage, the ideal pressure is 105 kPa–110 kPa; and during the keep-warm stage, the ideal pressure is normal atmospheric pressure. It is evident that the pressure inside the pot varies with each stage of the ideal cooking process.

[0003] In existing technology, traditional rice cookers generally do not have a pressure relief valve and rely on the vent on the lid to release steam. In this type of rice cooker, the pressure inside the pot cannot be adjusted during cooking, which affects the taste of the rice and the cooking time. Another type of rice cooker is similar to a pressure cooker and has a pressure relief valve. This type of rice cooker will automatically release steam after the rice is cooked. However, the steam is released during the cooking stage, and the pressure inside the pot cannot be adjusted during the cooking process, which still affects the taste of the rice. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide an exhaust structure for the steam vent of a rice cooker, which can automatically adjust the gas pressure inside the pot at different stages of cooking, thereby improving the quality of cooking rice.

[0005] The technical solution of this utility model is implemented as follows: A venting structure for the steam vent of a rice cooker, comprising: A groove is provided on the top surface of the rice cooker lid, and the bottom surface of the groove is provided with a steam outlet that communicates with the inside of the rice cooker; A micro-pressure cover plate is rotatably disposed above and covering the steam outlet, and the micro-pressure cover plate can block / open the steam outlet; An exhaust housing is detachably disposed within the groove. The exhaust housing includes a top plate and a first frame disposed on the bottom surface of the top plate. The first frame and the top plate form an accommodating space. The micro-pressure cover plate is located within the accommodating space. The bottom surface of the top plate is also provided with a second frame that limits the rotation range of the micro-pressure cover plate.

[0006] In this design, when the rice cooker is in the water absorption and heat preservation stages, the internal pressure is at normal atmospheric pressure, and the micro-pressure cover completely covers the steam outlet. When the rice cooker is in the boiling and simmering stages, the internal pressure exceeds the optimal cooking pressure range. At this time, the steam will lift the micro-pressure cover, and after the steam is released, the internal pressure of the rice cooker will drop back to the optimal cooking pressure range. This ensures that the rice is within the optimal cooking pressure range during the cooking process, thereby improving the quality of the cooked rice.

[0007] Preferably, the bottom surface of the groove is provided with a mounting base, and the micro-pressure cover plate is rotatably connected to the mounting base.

[0008] Preferably, the steam outlet is located in the middle of the pot lid; the steam outlet includes multiple vent holes.

[0009] Preferably, the second frame has a notch to allow the root of the micro-pressure cover to pass. This notch ensures smooth rotation of the micro-pressure cover.

[0010] Preferably, the top surface of the top plate is flush with the top surface of the rice cooker lid.

[0011] Preferably, the top plate is provided with multiple perforations for venting, and these perforations are offset from the steam outlet. When steam is discharged from the steam outlet, it enters the containment space from the steam outlet, and then is discharged to the external environment from the containment space through the perforations. This prevents steam from spraying directly out along the steam outlet and perforations, thus improving safety during use.

[0012] Preferably, the top plate is provided with a pull plate. By providing a pull plate, it is convenient for the user to pull the exhaust housing out of the groove.

[0013] Preferably, the exhaust housing is integrally molded. Integral molding of the exhaust housing facilitates mass production using molds.

[0014] Preferably, the micro-pressure cover and exhaust housing are made of polypropylene. This ensures that the micro-pressure cover and exhaust housing are resistant to high temperatures and that no harmful substances are released at high temperatures.

[0015] The principle and beneficial effects of this utility model using the above technical solution are as follows: a micro-pressure cover is rotatably installed at the steam outlet. When the gas pressure inside the rice cooker exceeds the ideal value, the steam can lift the micro-pressure cover, thereby releasing the pressure inside the rice cooker and causing the gas pressure inside the rice cooker to drop, thus improving the cooking quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the rice cooker lid and exhaust system; Figure 2This is a schematic diagram of the rice cooker lid and exhaust system from another angle; Figure 3 This is a schematic diagram of the groove and the steam outlet; Figure 4 This is a schematic diagram of the rice cooker lid and the micro-pressure cover. Figure 5 This is a schematic diagram of the exhaust casing; Figure 6 This is a schematic diagram of the exhaust casing from another angle.

[0017] The labels for the attached figures are as follows: 1. Groove; 2. Steam outlet; 3. Micro-pressure cover plate; 4. Exhaust shell; 5. First enclosure; 6. Accommodation space; 7. Second enclosure; 8. Notch; 9. Pull plate; 10. Exhaust structure; 11. Top plate; 12. Rice cooker lid; 13. Perforation. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0020] The specific implementation of this utility model is as follows: like Figures 1 to 6 As shown, this utility model provides an exhaust structure for the steam vent of a rice cooker. The exhaust structure 10 includes a groove 1, a micro-pressure cover plate 3, and an exhaust housing 4. The groove 1 is disposed on the top surface of the rice cooker lid 12, and the bottom surface of the groove 1 is provided with a steam outlet 2 communicating with the inside of the rice cooker. The micro-pressure cover plate 3 is rotatably disposed above the steam outlet 2 and covers the steam outlet 2. The micro-pressure cover plate 3 can block / open the steam outlet 2. The exhaust housing 4 is detachably disposed in the groove 1. The exhaust housing 4 includes a top plate 11 and a first frame 5 disposed on the bottom surface of the top plate 11. The first frame 5 and the top plate 11 form an accommodating space 6. The micro-pressure cover plate 3 is located in the accommodating space 6. The bottom surface of the top plate 11 is also provided with a second frame 7 that limits the rotation range of the micro-pressure cover plate 3.

[0021] In this design, when the rice cooker is in the water absorption and heat preservation stages, the internal pressure is at normal atmospheric pressure. At this time, the micro-pressure cover 3 completely covers the steam outlet 2. When the rice cooker is in the boiling and simmering stages, the internal pressure will exceed the optimal cooking pressure range. At this time, the steam will lift the micro-pressure cover 3. After the steam is released, the internal pressure of the rice cooker will drop back to the optimal cooking pressure range. This ensures that the rice is within the optimal cooking pressure range during the cooking process, thereby improving the quality of the cooked rice. It should be noted that the cooking pressure range is basically close to atmospheric pressure (101kPa-112kPa). When the pressure inside the pot exceeds 112kPa, the micro-pressure cover 3 will rotate upward under the drive of steam. At this time, the steam outlet opens, causing the pressure inside the pot to decrease. After the pressure inside the pot decreases, the micro-pressure cover 3 will rotate downward to block the steam outlet, and the pressure inside the pot will rise again... This cycle repeats to maintain the pressure inside the pot within the optimal cooking pressure range. In this embodiment, the top surface of the top plate 11 is flush with the top surface of the rice cooker lid 12. This improves the integration of the top plate 11 and the rice cooker lid 12. In addition, the exhaust shell 4 is integrally formed. The integrally formed exhaust shell 4 facilitates mass production using molds.

[0022] like Figure 3 and Figure 4 As shown, a mounting base is provided on the bottom surface of the groove 1, and the micro-pressure cover plate 3 is rotatably connected to the mounting base. The steam outlet 2 is located in the middle of the pot lid; the steam outlet 2 includes multiple vent holes. During operation, steam is discharged from the multiple vent holes and lifts the micro-pressure cover plate 3.

[0023] like Figure 6 As shown, the second frame 7 has a notch 8 to avoid the root of the micro-pressure cover plate 3. By setting the notch 8, the smooth rotation of the micro-pressure cover plate 3 is ensured.

[0024] like Figure 5 As shown, the top plate 11 is provided with multiple perforations 13 for venting, and the multiple perforations 13 are staggered with the steam outlet 2. When steam is discharged from the steam outlet 2, the steam enters the receiving space 6 from the steam outlet 2, and then is discharged to the external environment from the receiving space 6 through the perforations. The phenomenon of steam directly spraying out along the steam outlet 2 and the perforations 13 will not occur, thus improving the safety of use.

[0025] like Figure 5 As shown, a pull plate 9 is provided on the top plate 11. By providing the pull plate 9, it is convenient for the user to pull the exhaust housing 4 out of the groove 1.

[0026] In this embodiment, the micro-pressure cover plate 3 and the exhaust housing 4 are made of polypropylene. This ensures that the micro-pressure cover plate 3 and the exhaust housing 4 are resistant to high temperatures and do not release harmful substances at high temperatures.

[0027] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A venting structure for the steam vent of a rice cooker, characterized in that, include: A groove is provided on the top surface of the rice cooker lid, and the bottom surface of the groove is provided with a steam outlet that communicates with the inside of the rice cooker; A micro-pressure cover plate is rotatably disposed above and covering the steam outlet, and the micro-pressure cover plate can block / open the steam outlet; An exhaust housing is detachably disposed within the groove. The exhaust housing includes a top plate and a first frame disposed on the bottom surface of the top plate. The first frame and the top plate form an accommodating space. The micro-pressure cover plate is located within the accommodating space. The bottom surface of the top plate is also provided with a second frame that limits the rotation range of the micro-pressure cover plate.

2. The exhaust structure for the steam vent of a rice cooker according to claim 1, characterized in that, The bottom surface of the groove is provided with a mounting base, and the micro-pressure cover plate is rotatably connected to the mounting base.

3. The exhaust structure for the steam vent of a rice cooker according to claim 1, characterized in that, The steam outlet is located in the middle of the pot lid; the steam outlet includes multiple vent holes.

4. The exhaust structure for the steam vent of a rice cooker according to claim 1, characterized in that, The second frame has a notch for avoiding the root of the micro-pressure cover plate.

5. The exhaust structure for the steam vent of a rice cooker according to claim 1, characterized in that, The top surface of the top plate is flush with the top surface of the rice cooker lid.

6. The exhaust structure for the steam vent of a rice cooker according to claim 5, characterized in that, The top plate is provided with multiple perforations for exhaust, and the multiple perforations are offset from the steam outlet.

7. The exhaust structure for the steam vent of a rice cooker according to claim 1, characterized in that, The top plate is equipped with a pull plate.

8. The exhaust structure for the steam vent of a rice cooker according to claim 1, characterized in that, The exhaust casing is integrally molded.

9. The exhaust structure for the steam vent of a rice cooker according to claim 1, characterized in that, The micro-pressure cover and exhaust housing are made of polypropylene.

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