Spill-proof cooking utensil
By introducing cold air into the steam valve assembly to defoam and condense steam, combined with a specific channel design, the problems of steam valve exhaust port blockage and bubble overflow in rice cookers are solved, achieving a cooking appliance that is highly effective in preventing overflow and easy to clean.
Patent Information
- Application Number
- CN202422301049.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-09-20
AI Technical Summary
During the cooking process of an electric rice cooker, the exhaust port of the steam valve is easily blocked by rice soup, resulting in the problem of exhaust failure. Especially when cooking at high heat, the bubbles overflow and are difficult to clean, increasing the cleaning burden.
A cold air inlet pipe is introduced into the steam valve assembly to defoam and condense steam through cold air. Combined with the vertically arranged steam inlet channel, steam exhaust channel and bending part, the rice soup starch is prevented from falling back, and the defoaming effect is achieved by utilizing the turbulence and inner diameter contraction section of the cold air inlet pipe.
Effectively prevents steam valve components from clogging, eliminates bubble overflow, improves the anti-overflow effect of cooking utensils, reduces cleaning difficulty, improves steam exhaust efficiency and reduces noise.
Smart Images
Figure CN223311037U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of kitchen appliances, and specifically relates to an anti-overflow cooking utensil. Background Art
[0002] When cooking in an electric rice cooker, heat is generated within the cooking chamber, and steam is discharged through the exhaust port of the steam valve located on the lid. When cooking rice porridge or other dishes, a large amount of bubbles are generated during the cooking process. If the cooking power is too high or the cooking power is continuously high, the bubbles containing rice soup will overflow from the exhaust port, which not only makes cleaning a burden for the user, but also, if the steam valve is not cleaned promptly, the rice soup in the exhaust port will solidify, making cleaning more difficult and blocking the exhaust port, preventing exhaust from being exhausted. Furthermore, it is difficult for the rice soup to flow back into the cooking chamber, so this problem needs to be improved. Summary of the Invention
[0003] The present application provides an overflow-proof cooking utensil, which introduces cold air into the exhaust pipe of a steam valve through a cold air inlet pipe to achieve the purpose of overflow prevention.
[0004] The technical solutions adopted in this application are:
[0005] An anti-overflow cooking utensil comprises a pot body having a cooking cavity and a pot lid for opening or closing the cooking cavity, the pot lid being provided with a steam valve assembly, the steam valve assembly having a mixing cavity, the mixing cavity being provided with an exhaust port communicating with the outside, the steam valve assembly comprising an exhaust pipe and a cold air inlet pipe, the exhaust pipe having a steam inlet channel communicating with the cooking cavity and an exhaust channel communicating with the steam inlet channel and the mixing cavity, the steam inlet channel and the exhaust channel being arranged vertically, or the steam inlet channel being arranged vertically, a bending portion being provided between the exhaust channel and the steam inlet channel so that the exhaust channel extends horizontally, and the outlet end of the cold air inlet pipe being connected to the exhaust channel.
[0006] Furthermore, the pot cover includes a lining cover and a detachable inner cover, and the exhaust pipe is detachably mounted on the inner cover.
[0007] Furthermore, a steam outlet is provided on the inner cover, and a steam exhaust pipe is installed in connection with the steam outlet, and the steam outlet is located on the vertical channel of the steam inlet channel.
[0008] Furthermore, the steam inlet channel and the steam exhaust channel are arranged vertically, and the cold air inlet pipe has a bent portion so that the air inlet end of the cold air inlet pipe is connected to the outside world upward.
[0009] Furthermore, a bending portion is provided between the exhaust passage and the inlet passage, and an angle between the exhaust passage and the inlet passage is greater than or equal to 90°.
[0010] Furthermore, the cold air inlet pipe is arranged perpendicular to the exhaust passage.
[0011] Furthermore, the exhaust pipe and the cold air inlet pipe are integrally formed together.
[0012] Furthermore, the steam inlet channel and the steam exhaust channel are integrally formed together.
[0013] Furthermore, the exhaust passage has a contraction section with a contracted inner diameter, and the outlet end of the cold air inlet pipe is connected to the contraction section.
[0014] Furthermore, the cold air inlet pipe has a flow-disturbing section extending into the exhaust passage, and the flow-disturbing section has a flow-disturbing portion facing the steam inlet end of the exhaust passage.
[0015] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:
[0016] 1. In the present application, the steam inlet channel connected to the cooking cavity is arranged vertically. When the cooking cavity is boiling and generating steam, rice soup, starch or small food ingredients may enter the steam inlet channel at the same time. Since the steam inlet channel is arranged vertically, the rice soup, starch or small food ingredients can fall back into the cooking cavity, avoiding blocking the steam inlet channel and ensuring smooth steam flow.
[0017] 2. By setting up a cold air inlet pipe, the air outlet end of which is connected to the exhaust channel, it is used to absorb cold air into the exhaust channel. The introduction of cold air will have an impact on the bubbles, which can not only achieve defoaming, but also cool the bubbles and condense them into liquid, further improving the defoaming effect. Even if high-power cooking is used during cooking, there will be no continuous bubble overflow from the exhaust port of the steam valve assembly, which greatly improves the anti-overflow effect of the cooking appliance.
[0018] 3. As a preferred embodiment of the present application, a bend is provided between the exhaust passage and the steam inlet passage. This allows the steam generated in the cooking chamber to be blocked and redirected upon entering the exhaust pipe, allowing the steam to liquefy and condense during the redirection process. This is particularly true when cooking rice or porridge, where starch or other small ingredients may enter the steam inlet passage as the cooking chamber boils. The bend prevents these starches or other small ingredients from falling back into the cooking chamber, reducing the chance of the exhaust pipe becoming clogged.
[0019] 4. The inner cover is detachable, and the exhaust pipe is detachably mounted on the inner cover, making it convenient for users to clean.
[0020] 5. The exhaust passage has a constricted section with a narrowed inner diameter, and the outlet end of the cold air inlet pipe is connected to the constricted section. The exhaust pipe includes a constricted section within its exhaust passage. This section accelerates steam as it flows through the constricted section before it flows from the exhaust passage to the cooking chamber, thereby reducing pressure at the constricted section. This change in pressure and flow rate causes a sudden change in bubble surface tension, resulting in bubble breakage or the reduction of large bubbles to smaller ones. The outlet end of the cold air inlet pipe is directly connected to the constricted section, drawing cold air from the outside into this low-pressure area to achieve cooling and de-foaming. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0022] Figure 1 This is a cross-sectional view of a partial structure of a cooking utensil according to one embodiment of the present application;
[0023] Figure 2 This is a cross-sectional view of the lower cover structure of an embodiment of the present application;
[0024] Figure 3 This is a cross-sectional view of a specific example of an exhaust pipe according to an embodiment of the present application;
[0025] Figure 4 This is a cross-sectional view of a specific example of the lower exhaust pipe in the second embodiment of the present application.
[0026] in:
[0027] 1. Lining cover; 11. Baffle;
[0028] 2. Inner cover;
[0029] 3. Seals;
[0030] 4. Mixing chamber; 41. Exhaust port;
[0031] 5. Exhaust pipe; 51. Steam inlet channel; 52. Exhaust channel; 53. Cluster section; 54. Contraction section; 55. Expansion section; 56. Installation section;
[0032] 6. Cold air inlet pipe; 61. Flow spoiler; 62. Air outlet notch;
[0033] 7. Reflux valve. DETAILED DESCRIPTION
[0034] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.
[0035] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.
[0036] like Figure 1 and Figure 2 As shown, an anti-overflow cooking utensil includes a pot body with a cooking cavity and a pot lid for opening or closing the cooking cavity, the pot lid is provided with a steam valve assembly, the steam valve assembly has a mixing cavity, the mixing cavity is provided with a steam exhaust port 41 communicating with the outside, and the steam valve assembly includes a steam exhaust pipe 5.
[0037] In this embodiment, the exhaust pipe includes a steam inlet channel 51 and a steam exhaust channel 52. The steam inlet channel 51 and the steam exhaust channel 52 can be composed of two detachable exhaust pipes or a single integral exhaust pipe. When the exhaust pipe is an integral exhaust pipe, the front portion corresponds to the steam inlet channel 51 and the rear portion corresponds to the steam exhaust channel 52.
[0038] For the specific form of the exhaust pipe, you can refer to Figure 2 As shown, the steam inlet channel 51 is arranged vertically, and a bend is provided between the steam exhaust channel 52 and the steam inlet channel 51 so that the steam exhaust channel 52 extends in the horizontal direction. The exhaust pipe as a whole looks like a "7" shape. Specifically, the angle between the steam exhaust channel and the steam inlet channel is greater than or equal to 90°. In specific applications, it can be 90°, or appropriately greater than 90°, such as 100°, 110°, 120°, 150°, etc. When the angle is less than 90°, the exhaust pipe will bend too much, affecting the service life of the exhaust pipe, and is not conducive to the backflow of rice soup starch or fine food ingredients in the exhaust channel 52.
[0039] In other embodiments, the steam inlet channel and the steam exhaust channel may be arranged vertically, and the exhaust pipe as a whole may be similar to the shape of "1". In this case, the front half of the exhaust pipe may be understood as the steam inlet channel, and the rear half may be understood as the steam exhaust channel. At this time, the cold air inlet pipe has a bend so that the air inlet end of the cold air inlet pipe is connected upward to the outside world. That is to say, when the exhaust pipe is similar to the shape of "1", a bend may be provided on the cold air inlet pipe so that the air inlet end of the cold air inlet pipe can be connected upward to the outside world. Of course, the cold air inlet pipe may also be arranged in a horizontal direction, and its air inlet end can extend horizontally to the side wall of the pot cover to connect to the outside world.
[0040] In this embodiment, preferably, reference can be made to Figure 3A bend is provided between the steam inlet passage 51 and the steam exhaust passage 52. This arrangement blocks and redirects the steam generated in the cooking chamber as it enters the exhaust pipe, allowing the steam to liquefy and condense during this redirection. This is particularly true when cooking rice or porridge. The starch in the rice soup or small ingredients may enter the steam inlet passage 51 as the cooking chamber boils. The bend prevents these starches and small ingredients from falling back into the cooking chamber, reducing the chance of the exhaust pipe becoming clogged.
[0041] The steam valve assembly of this embodiment is further provided with a cold air introduction pipe 6. The air inlet end of the cold air introduction pipe 6 is connected to the cold air inlet or extends to the outside, and the air outlet end is connected to the exhaust passage 52. The cold air introduction pipe 6 is provided to draw cold air into the exhaust passage. The introduction of cold air impacts the bubbles, not only defoaming them but also cooling them, causing them to condense into liquid, further enhancing the defoaming effect. Even when cooking at high power, the exhaust port of the steam valve assembly will not continuously overflow with bubbles, significantly improving the overflow prevention effect of the cooking appliance.
[0042] As a preferred embodiment of the present application, the exhaust passage has a contraction section 54 with a contracted inner diameter, and the outlet end of the cold air inlet pipe 6 is connected to the contraction section 54. The exhaust pipe is provided with a contraction section 54 with a contracted inner diameter within its exhaust passage, so that before the steam flows from the exhaust passage to the cooking chamber, the steam is accelerated when it flows to the contraction section due to the provision of the contraction section, thereby causing a decrease in pressure at the contraction section. The change in pressure and flow rate will cause a sudden change in the surface tension of the bubbles, resulting in bubble breaking or large bubbles becoming smaller. The outlet end of the cold air inlet pipe is directly connected to the contraction section, and external cold air will be introduced into this low-pressure area to achieve cooling and defoaming.
[0043] The cold air inlet pipe 6 of the present application is arranged perpendicular to the exhaust channel 52. When the steam in the cooking cavity is discharged through the exhaust channel 52, it has a certain flow speed and inertia. Since the cold air inlet pipe 6 is arranged perpendicular to the exhaust channel 52, the steam will hardly escape from the cold air inlet pipe 6. On the contrary, due to the flow of steam, the pressure is reduced, so that the cold air inlet pipe 6 can introduce external cold air, thereby achieving the purpose of defoaming.
[0044] The exhaust pipe 5 and the cold air inlet pipe 6 of the present application can be integrally formed together and can be made of silicone material for easy manufacturing and molding. Alternatively, the two can be detachably connected and assembled together.
[0045] In the present application, the steam outlet end of the exhaust channel 52 is connected to the mixing chamber 4. When the fluid gushing out from the steam outlet end of the exhaust channel 52 enters the mixing chamber 4 from the exhaust channel 52, it will undergo a pressure release process. This pressure change helps to break the bubbles, thereby further eliminating the unbroken bubbles. After the foam breaks, it will be buffered in the mixing chamber 4 under the action of its own weight to avoid clogging the exhaust port 41. Moreover, the rupture of the foam at the connection position between the steam outlet end of the exhaust channel 52 and the mixing chamber 4 caused by the pressure change between the two can reduce the resistance of the exhaust channel 52, so that fluids such as steam and foam can be discharged more smoothly, thereby improving the exhaust efficiency.
[0046] Furthermore, if the foam cannot be broken in time during the steam discharge process, the presence of the foam will cause local disturbances and resistance in the steam flow. These disturbances and resistances can easily lead to turbulence in the steam flow, thereby causing noise escalation. The present application can achieve bubble breaking through the cooperation of the contraction section 54 and the cold air inlet pipe 6 before the steam flows into the mixing chamber 4. After the foam bursts, these local disturbances and resistance are reduced, the steam flow becomes smoother, and the fluid interface becomes more continuous, thereby reducing the generation of turbulence and greatly reducing the exhaust noise.
[0047] In this embodiment, referring to Figure 2 The steam valve assembly is located on the pot cover and includes an exhaust pipe 5 having an exhaust end and a steam inlet end connected to the cooking chamber. The exhaust pipe has a communication port that is connected to the outside world for absorbing cold air to mix with the steam in the exhaust pipe. The exhaust end of the exhaust pipe 5 is provided with a corresponding baffle 11. The mixed airflow impacts the baffle 11 to break bubbles. For specific operation, please refer to Figure 2 As shown by the middle arrow, the high-temperature steam generated from the cooking cavity enters the exhaust pipe 5 through the steam inlet end and is discharged through the exhaust end. The cold air absorbed by the connecting port will mix with the steam in the exhaust pipe, and then the mixed air flow will impact the baffle 11 to achieve bubble breaking.
[0048] As a preferred embodiment of the present application, Figure 2 As shown, the pot cover includes a lining cover 1 and an inner cover 2 detachably mounted on the lining cover 1. The steam valve assembly includes a steam valve cover mounted on the lining cover 1. The steam valve cover can also be integrally formed on the lining cover.
[0049] As a preferred embodiment of the present application, the exhaust pipe 5 is detachably mounted on the inner cover 2. This makes it convenient for users to clean it.
[0050] The liner cover 1 and / or steam valve cover are provided with a seal 3 having a lower sealing lip that abuts and seals against the upper surface of the inner cover 2. The steam valve cover, seal 3, and inner cover 2 cooperate to form a mixing chamber 4. An exhaust pipe 5 is mounted on the inner cover 2 so that it can be removed from the liner cover 1 along with the inner cover 2, allowing the user to thoroughly clean the inner cover 2 and exhaust pipe 5. After the inner cover 2 is removed, the mixing chamber 4 is directly exposed to the user's field of vision, allowing the user to thoroughly clean the inner wall of the mixing chamber 4 and prevent the accumulation of dirt and grime within the steam valve assembly, which could lead to bacterial growth. Furthermore, the exhaust pipe 5 is detachably mounted on the inner cover 2 so that it can be removed and cleaned.
[0051] Specifically, the inner cover 2 is provided with a steam outlet, and the exhaust pipe 5 is installed in connection with the steam outlet. Figure 2 The steam outlet on the inner cover 2 is located on the vertical channel of the steam inlet channel, so that the rice soup starch or small ingredients entering the steam inlet channel can fall back into the cooking cavity from the steam outlet. Figure 3 The exhaust pipe has a mounting portion 56 at its lower portion, which interfaces with the steam outlet. In this embodiment, the exhaust pipe is a silicone tube with a slot at its lower portion. The inner cover is a metal inner cover, which interfaces with the steam outlet through deformation of the slot. In other embodiments, the exhaust pipe and the steam outlet may be interfaced and mounted using threads, snap fasteners, or other similar methods.
[0052] Preferably, if Figure 2 As shown, the inner lid 2 is provided with a reflow hole and a reflow valve 7 that floats on the inner lid 2 to open or close the reflow hole. When the pressure in the cooking chamber rises to a certain threshold, the reflow valve 7 floats upward, closing the reflow hole and preventing steam from flowing back into the mixing chamber 4. When the pressure in the cooking chamber drops to a certain threshold, the reflow valve 7 descends under the influence of its own weight and the weight of the liquid in the mixing chamber 4, opening the reflow hole. The accumulated liquid in the mixing chamber 4 then falls back into the cooking chamber through the reflow hole. Furthermore, a portion of the inner lid 2 is sunken to form a liquid collection trough connected to the mixing chamber 4, allowing condensed water and liquid that has fallen back after bubbles have broken. The reflow hole is located on the bottom wall of the liquid collection trough to facilitate liquid reflow. The reflow hole is located below the exhaust end of the exhaust pipe 5. This allows condensed water generated by the high-temperature steam discharged from the exhaust end, after being blocked by the baffle, to quickly flow back into the cooking chamber through the reflow hole, thereby reducing the amount of high-temperature steam that escapes.
[0053] In other embodiments, the steam valve assembly may include a valve body with a return hole provided thereon, or, as described in the previous paragraph, the steam valve assembly may be fixed to a removable inner cover with a return hole provided thereon. In other words, the return hole may be provided on the steam valve assembly or on the inner cover. In this embodiment, the return hole is an important function of the steam valve assembly and should be understood as part of the steam valve assembly.
[0054] In this embodiment, the vertical projection of the reflow hole is located between the exhaust end of the exhaust pipe 5 and the baffle 11. After encountering the baffle 11, the high-temperature steam discharged from the exhaust end changes direction, and some of the high-temperature steam condenses to form condensed water. The reflow hole is located just below the baffle 11 between the exhaust end and the baffle 11, allowing the condensed water to flow back into the cooking chamber in a timely manner.
[0055] In this embodiment, the exhaust port 41 is located above the exhaust end of the exhaust pipe. After encountering the baffle 11, the high-temperature steam discharged from the exhaust end 58 condenses to form condensed water, which then flows back through the reflux hole. Some of the high-temperature steam also flows within the mixing chamber 4 and is ultimately discharged to the outside through the exhaust port 41. The height of the exhaust port 41 in this embodiment is higher than the exhaust end, allowing the steam to gradually flow upward, ultimately allowing any uncondensed high-temperature steam to be discharged through the exhaust port 41.
[0056] The present application does not limit the connection position and connection method of the cold air inlet pipe 6 in the contraction section 54, and it can adopt any one of the following embodiments:
[0057] Implementation method 1: Figure 3 As shown, the outlet end of the cold air inlet pipe 6 is flush with the inner wall of the exhaust passage 52 and, along the steam flow direction, is connected to the midstream side of the contraction section 54. This arrangement allows the cold air inlet pipe 6 to connect to the lowest pressure point of the exhaust passage 52, facilitating the introduction of external cold air and improving the bubble breaking effect.
[0058] Along the flow direction of steam, the exhaust channel 52 also has a cluster section 53 located on the upstream side of the contraction section 54. The inner diameter of the cluster section 53 gradually decreases from the side away from the contraction section 54 to the side close to the contraction section 54, so as to further optimize the flow rate of the fluid at the contraction section 54, so as to form a relatively low pressure and facilitate the introduction of external cold air.
[0059] Along the steam flow direction, the exhaust passage 52 further includes an expansion section 55 located downstream of the contraction section 54. The inner diameter of the expansion section 55 is larger than that of the contraction section 54. The gas-liquid mixed fluid is sprayed into the buffer chamber 4 through the expansion section 55. The design of the expansion section 55 causes the fluid in the exhaust passage 52 to undergo a pressure release process as it flows from the contraction section 54 to the expansion section 55. This pressure change helps to break bubbles.
[0060] Implementation method 2: Figure 4As shown, the cold air inlet pipe 6 has a flow-disturbing section extending into the exhaust passage 52, and the flow-disturbing section has a flow-disturbing portion 61 facing the steam inlet end of the exhaust passage 52. The provision of the flow-disturbing section can disturb the fluid flowing from the steam inlet end of the steam inlet passage 51 to the contraction section 54, thereby increasing the contact time and contact area between the cold air and the fluid in the contraction section 54, further improving the bubble breaking effect, reducing the accumulation of foam in the exhaust passage 52, thereby facilitating the smooth discharge of steam and improving the exhaust efficiency. Moreover, the flow-disturbing section extends into the exhaust passage 52, which can further reduce the cross-sectional area of the exhaust passage 52 at this position, thereby causing the fluid velocity at this position in the exhaust passage 52 to change, thereby causing a pressure change. Combined with the provision of the contraction section 54, the pressure change in the exhaust passage 52 is diversified, greatly improving the bubble breaking efficiency.
[0061] Reference Figure 4 The flow-disturbing section also has an outlet notch 62 facing the outlet end of the exhaust passage 52. The provision of the outlet notch 62 can break the laminar flow of the cold air, causing the cold air to generate turbulent flow at this location, increasing the contact area and contact time between the cold air and the fluid, and further improving the bubble breaking effect.
[0062] In the second embodiment, the connection position between the cold air inlet pipe 6 and the contraction section 54 can adopt any one of the following embodiments:
[0063] As a preferred example of this embodiment, Figure 1 and Figure 2 As shown, the horizontal projection of the steam outlet end of the exhaust channel 52 and the horizontal projection of the exhaust port 41 are staggered. This arrangement can extend the flow path of the fluid and achieve speed reduction and noise reduction. Furthermore, the axis of the steam outlet end of the exhaust channel 52 and the axis of the exhaust port 41 are perpendicular to each other, so that when the fluid flows out through the steam outlet end of the exhaust channel 52 and flows toward the exhaust port 41, it will go through at least one corner. The corner can force the fluid to change the flow direction and increase the disturbance in the fluid, thereby helping to destroy the stability of the foam and promote the rupture of the foam. Moreover, at the corner, due to the action of centrifugal force, the steam and liquid are more easily separated, thereby promoting gas-liquid separation and improving the exhaust efficiency.
[0064] As a preferred embodiment of the present application, Figure 2 As shown, the exhaust port 41 of the mixing chamber 4 and the exhaust end of the exhaust channel 52 are separated on two opposite sides of the cold air inlet pipe 6. On the one hand, the flow path of the fluid from the exhaust channel 52 to the exhaust port 41 can be further extended to further achieve bubble breaking. On the other hand, the steam will bypass the cold air inlet pipe 6 during the discharge path, thereby achieving heat exchange and reducing the steam discharge temperature.
[0065] As a preferred embodiment of the present application, Figure 1 and Figure 2 As shown, the air inlet end of the cold air inlet pipe 6 extends to the outside of the mixing chamber 4, and the air inlet end of the cold air inlet pipe 6 is staggered with the exhaust end of the exhaust port 41. This arrangement can reduce the probability of hot steam discharged from the exhaust port 41 being introduced into the cold air inlet pipe 6, so that the temperature of the air introduced into the contraction section 54 from the cold air inlet pipe 6 is lower, thereby improving the bubble breaking effect. Figure 2 As shown, the top surface of the cold air introduction pipe 6 is higher than the top surface of the steam exhaust port 41, so as to further reduce the probability of the cold air introduction pipe 6 sucking in the discharged hot steam.
[0066] In another embodiment, the air inlet end of the cold air introduction pipe 6 is flush with the outer wall surface of the top wall of the mixing chamber 4 .
[0067] Anything not described in this application can be achieved by adopting or drawing on existing technologies.
[0068] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.
[0069] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.
Claims
1. A spill-proof cooking utensil comprising a pot body having a cooking cavity and a pot lid for opening or closing the cooking cavity, characterized in that: The pot cover is provided with a steam valve assembly, the steam valve assembly has a mixing chamber, the mixing chamber is provided with an exhaust port connected to the outside, the steam valve assembly includes an exhaust pipe and a cold air inlet pipe, the exhaust pipe has a steam inlet channel connected to the cooking chamber and an exhaust channel connected to the steam inlet channel and the mixing chamber, the steam inlet channel and the exhaust channel are vertically arranged, or the steam inlet channel is vertically arranged, a bending portion is provided between the exhaust channel and the steam inlet channel so that the exhaust channel extends in a horizontal direction, and the outlet end of the cold air inlet pipe is connected to the exhaust channel.
2. The spill-proof cooking utensil according to claim 1, characterized in that: The pot cover comprises a lining cover and a detachable inner cover, and the exhaust pipe is detachably mounted on the inner cover.
3. The anti-overflow cooking utensil according to claim 2, characterized in that: The inner cover is provided with a steam outlet, the exhaust pipe is connected to the steam outlet and installed, and the steam outlet is located on the vertical channel of the steam inlet channel.
4. The anti-spill cooking utensil according to claim 1, characterized in that: The cold air introduction pipe has a bent portion so that the air inlet end of the cold air introduction pipe is upwardly connected to the outside.
5. The anti-spill cooking utensil according to claim 1, characterized in that: A bending portion is provided between the exhaust passage and the inlet passage, and an angle between the exhaust passage and the inlet passage is greater than or equal to 90°.
6. The anti-spill cooking utensil according to claim 1, characterized in that: The cold air inlet pipe is arranged perpendicular to the exhaust passage.
7. The spill-proof cooking utensil according to claim 1, characterized in that: The exhaust pipe and the cold air inlet pipe are integrally formed together.
8. The spill-proof cooking utensil according to claim 1, characterized in that: The steam inlet channel and the steam exhaust channel are integrally formed together.
9. The anti-spill cooking utensil according to any one of claims 1 to 8, characterized in that: The exhaust passage has a contraction section with a contracted inner diameter, and the outlet end of the cold air inlet pipe is connected to the contraction section.
10. The anti-spill cooking utensil according to claim 9, characterized in that: The cold air introduction pipe has a flow-disturbing section extending into the exhaust passage, and the flow-disturbing section has a flow-disturbing portion facing the steam inlet end of the exhaust passage.