A cooking appliance

Abstract

The utility model discloses a cooking utensil, including the pot cover and the pot body, the pot cover and the pot body enclose the cooking cavity, the pot cover includes the cover and the vent pipe, and the cover is provided with the exhaust passage, and the vent pipe is formed with the cover cooperation exhaust chamber, and has the pipe body that extends into the exhaust passage, and the pipe body has the air inlet and the gas outlet, and the air inlet is communicated with the cooking cavity, and the gas outlet is set up in the lateral wall of pipe body to the horizontal direction, and the vent pipe still has the shielding portion that sets up at the gas outlet, and the shielding portion shields the at least partial area of gas outlet, and can move or deform relative to the pipe body to open the gas outlet. The conduction area of gas outlet can change, satisfies the requirement under different working conditions, reduces the difficulty of size design, improves the versatility. The gas outlet is set up in the lateral wall of pipe body, when the liquid in the pot boils, cannot directly surge to the gas outlet, reduces the risk that the liquid and the foam enter the exhaust passage through the gas outlet, also avoids that the liquid and the foam and the shielding portion directly contact will stick the shielding portion.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a cooking utensil. Background Technology

[0002] Cooking appliances typically have a steam valve on the lid. This valve allows steam to escape from the pot during or after cooking, maintaining a balance between the inside and outside of the pot. For example, in a regular rice cooker, the steam valve remains open during cooking to allow steam to escape promptly and prevent the formation of a high-pressure environment inside the pot. Pressure cookers (such as pressure cookers and micro-pressure cookers) close the steam valve during cooking, allowing pressure to build up inside the pot for pressure cooking. After pressure cooking is complete, the steam valve reopens to release the pressure.

[0003] However, when designing the air inlet of the steam valve, the risk of overflowing during high-heat cooking and the loss of heat and moisture during low-temperature cooking and heat preservation need to be taken into account, which makes the design of the air inlet size quite difficult.

[0004] While a large air inlet design can prevent overflow during high-heat cooking (ensuring the liquid boils vigorously without overflowing through the steam valve), it also leads to significant heat and moisture loss through the steam valve when the pot is not hot or during heat preservation. This results in lower energy efficiency and drier food. Conversely, a small air inlet, while reducing heat and moisture loss to some extent, limits heating power. When using high-power heating, the liquid is more likely to overflow through the steam valve when boiling.

[0005] Chinese patent CN207755034U discloses a micro-pressure rice cooker, which uses a micro-pressure plate on the air inlet of the steam valve. The micro-pressure plate has a first static state and a second exhaust state. In the first state, the micro-pressure plate closes the air inlet. In the second state, the micro-pressure plate moves to open and close the air inlet to form intermittent exhaust.

[0006] However, while the above solution can prevent liquid and foam from overflowing from the steam valve's outlet to some extent, when the liquid in the pot boils, even though the air inlet is sealed, the liquid and foam will still rise to the air inlet and come into contact with the micro pressure plate. This will cause the micro pressure plate to become contaminated, creating a cleaning burden for the user. Furthermore, the viscous soup may cause the micro pressure plate to stick together, preventing it from moving properly and blocking the air inlet, thus preventing normal exhaust. Utility Model Content

[0007] This utility model provides a cooking appliance to solve the problems of the difficulty in designing the size of the steam valve's air inlet and the tendency of the soup rising in the pot to cause the moving parts to stick together, resulting in the air inlet being blocked and unable to effectively exhaust air.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A cooking utensil includes a lid and a pot body, which together form a cooking cavity. The lid includes a cover body and a vent pipe. The cover body has an exhaust channel, and the vent pipe cooperates with the cover body to form an exhaust cavity. The vent pipe also has a tube extending into the exhaust channel. The tube has an inlet and an outlet. The inlet communicates with the cooking cavity, and the outlet is located on the side wall of the tube and faces horizontally. The vent pipe also has a blocking portion located at the outlet. The blocking portion blocks at least a portion of the outlet and is movable or deformable relative to the tube to open the outlet.

[0010] In this invention, at least a portion of the vent pipe is inserted into the exhaust channel, thus forming a steam valve together with the exhaust channel. Gas from inside the pot enters the pipe body through the inlet and then enters the exhaust channel through the outlet. The vent pipe can be detached from the cover, allowing the exhaust chamber to be opened for easy cleaning of the vent pipe and exhaust channel. The shielding part can move or deform relative to the pipe body under the influence of airflow, thus having a shielding state that at least partially shields the outlet and a clearance state that fully opens the outlet. This makes the conduction area of ​​the outlet variable. When the pot temperature is low or cooking at low heat, the shielding part is in the shielding state, reducing the loss of heat and moisture from the pot. When cooking at high heat, the shielding part is in the clearance state, allowing the outlet to be fully open, thereby reducing the pressure at the outlet and lowering the risk of liquid spillage. By designing the outlet of the vent as a variable-sized structure, it can meet the conduction area requirements under different working conditions, reducing the difficulty of size design and improving versatility.

[0011] Furthermore, the vent is located on the side wall of the pipe, so that the direction of the vent is perpendicular to the upward flow of liquid and foam in the pot. When the liquid in the pot boils, it cannot rise directly to the vent, but is blocked by the top wall of the pipe. When the liquid and foam collide with the top wall of the pipe, it will accelerate the liquid's fall and the bursting of bubbles. This reduces the risk of liquid and foam entering the exhaust channel through the vent, and also prevents the liquid and foam from directly contacting the shield and sticking to it, keeping the shield clean. This allows it to move or deform reliably under stress, improving functional reliability.

[0012] One end of the shield is connected to the pipe body so that the shield can swing around the connection to open or block the air outlet.

[0013] In this design, one end of the shielding part is rotatably connected to the tube body, allowing it to swing around the connection point when subjected to thrust, thus switching states. This design not only makes the movement of the shielding part more reliable but also simplifies its assembly with the tube body. Furthermore, the shielding part remains connected to the tube body and can swing relative to it. When users remove the vent tube for cleaning, they can easily clean the shielding part without having to install it, thus improving the ease of installation and removal.

[0014] The ventilator also includes a connecting part, one end of which is connected to the tube body via the connecting part, and the thickness of the connecting part is less than the thickness of the tube body.

[0015] In this design, the thickness of the connecting part is reduced to be less than that of the tube body. While ensuring the stability of the connection, the connecting part is made easier to deform or move. As a result, when the amount of gas in the pot increases, the shielding part can react and move in time under the push of the gas, ensuring that the gas outlet opens in time and avoiding the occurrence of overflow.

[0016] The connecting part is located above the air outlet so that the blocking part can be flipped upward to open the air outlet.

[0017] In this design, the connecting part is located above the air outlet. When the blocking part is pushed by the gas inside the pipe, it flips upward to open the air outlet, allowing the gas inside the pipe to flow out laterally. However, due to the obstruction of the blocking part, the gas must bypass it to flow upward smoothly. This upward-flipping blocking part further lengthens the gas flow path, helping to reduce the gas's kinetic energy and causing any liquids or foam carried in the gas to break and flow back, completing gas-liquid separation and further reducing the risk of liquids and foams overflowing from the exhaust channel. Furthermore, when the amount of gas inside the pipe is small, the blocking part can flip downward under its own gravity to at least partially block the air outlet. No additional components are needed to provide the force for the blocking part to reset, ensuring timely reset and simplifying the structure of the vent pipe, thus saving costs.

[0018] The area of ​​the shielding part is smaller than the area of ​​the air outlet, so that the air outlet has a shielding area blocked by the shielding part, and a conduction area located between at least a portion of the edge of the air outlet and the edge of the shielding part.

[0019] In this design, when the shielding part is in the shielding state, it does not completely block the air outlet; there is a conductive area between the two. This means that the inside of the pot is not completely isolated from the external environment, but can be connected to the outside through the conductive area, thus maintaining a balance between the air pressure inside the pot and the outside air pressure. This prevents the lid from being sucked in when the air pressure inside the pot is lower than the outside atmospheric pressure, which would prevent the lid from opening properly.

[0020] The side wall of the tube is also provided with a limiting protrusion, and the blocking part can contact the limiting protrusion to make a lateral gap between the blocking part and the side wall of the tube.

[0021] In this design, when the blocking part is in the blocked state, it contacts the limiting protrusion, thus preventing it from completely adhering to the tube surface. This reduces the contact area between the blocking part and the tube, lowering the risk of moisture, rice water, etc., causing the blocking part to stick to the tube, ensuring the normal movement or deformation of the blocking part. Furthermore, the limiting protrusion stops and limits the blocking part, creating a gap between the blocking part and the tube. Therefore, even when the blocking part is in the blocked state, the internal environment of the pot is not completely isolated from the external environment, but can still communicate through the gap between the blocking part and the tube. This also prevents the lid from being unable to open properly when the internal pressure is lower than the external atmospheric pressure, thus avoiding the phenomenon of the lid sticking shut when the pressure inside the pot is lower than the external atmospheric pressure.

[0022] The exhaust chamber includes a first chamber and a second chamber arranged horizontally. The pipe extends into the first chamber, and the cover has an exhaust port that connects to the second chamber. An exhaust baffle is provided between the first chamber and the second chamber.

[0023] In this design, the first and second chambers are arranged horizontally, perpendicular to the upward flow direction of the fluid inside the vessel. This means that when gas enters the exhaust chamber through the pipe, its upward flow is blocked by the top wall of the exhaust chamber, forcing it to flow horizontally from the first chamber into the second chamber. This causes the airflow to change direction at least once within the exhaust chamber, thus lengthening the gas flow path and improving the bubble-breaking and overflow prevention effect. The outlet baffle further obstructs the gas flow from the first chamber to the second chamber, causing the gas to bypass the baffle and further lengthening the gas path, thus improving the gas-liquid separation effect.

[0024] The air outlet is located on the side of the pipe body away from the second chamber.

[0025] In this design, the outlet is located away from the second chamber, which further lengthens the air path and forces the airflow to bypass the pipe before flowing into the second chamber. This effectively reduces the kinetic energy of the airflow and helps to complete gas-liquid separation in the exhaust chamber, preventing bubbles and liquid from entering the second chamber along with the airflow.

[0026] The vent tube also includes a mating lip located on the outer periphery of the tube body, and the cover has a downwardly extending mating rib. The mating rib forms an exhaust channel, and the mating lip and the mating rib cooperate to form an exhaust chamber.

[0027] In this design, the top surface of the cover has downward-extending mating ribs that form an exhaust channel. The bottom of the exhaust channel is open. By installing a vent pipe into the cover, the pipe extends into the exhaust channel, and the mating lip abuts against the mating ribs to seal the bottom of the exhaust channel. This combination forms an exhaust chamber. When the vent pipe is removed from the cover, the bottom of the exhaust channel is opened, allowing the user to clean both the vent pipe and the interior of the exhaust channel separately, thus improving the ease of cleaning the exhaust chamber.

[0028] The vent pipe is also equipped with a downward recessed section, and the bottom wall of the recessed section is equipped with a return port. A return valve is installed at the return port, and the return valve can move up and down to open or block the return port.

[0029] In this design, the vent pipe forms the bottom wall of the exhaust chamber, and the lower part is the lowest point inside the exhaust chamber. The condensate, food broth, and other liquids in the exhaust chamber will collect in the lower part under their own gravity. By setting a return port in the lower part, the liquid can flow back into the pot through the return port, instead of accumulating in the exhaust chamber for a long time, thereby further reducing the risk of liquid overflowing out of the pot. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0031] Figure 1 This is a cross-sectional view of a pot lid according to one embodiment of the present invention, wherein the blocking part is in a blocking state;

[0032] Figure 2 for Figure 1 A magnified view of area A in the middle;

[0033] Figure 3 This is a partial cross-sectional view of a pot lid with the shielding part in an avoidance state according to one embodiment of the present invention.

[0034] Figure 4 This is a cross-sectional view of the vent pipe according to one embodiment of the present invention, wherein the shielding part is in a shielding state;

[0035] Figure 5 for Figure 4 A cross-sectional view of the central vent pipe in the obstruction-avoidance position;

[0036] Figure 6 This is a schematic diagram of the structure of the vent pipe in the blocked state according to one embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the vent pipe in an avoidance state according to one embodiment of the present invention.

[0038] in:

[0039] 1. Cover; 11. Exhaust passage; 12. Exhaust chamber; 121. First chamber; 122. Second chamber; 13. Exhaust port; 14. Exhaust baffle; 15. Matching rib;

[0040] 2. Vent pipe; 21. Pipe body; 211. Air inlet; 212. Air outlet; 213. Conducting area; 22. Mating part; 23. Mating lip; 24. Fixing groove; 25. Recessed part; 251. Return port; 26. Return valve; 27. Shielding part; 28. Connecting part; 29. ​​Limiting protrusion;

[0041] 3. Inner cover. Detailed Implementation

[0042] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0043] 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.

[0044] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] like Figures 1 to 3 As shown, a cooking appliance includes a lid and a pot body, which together form a cooking cavity. The lid includes a cover body 1 and a vent pipe 2. The cover body 1 is provided with an exhaust channel 11. The vent pipe 2 cooperates with the cover body 1 to form an exhaust cavity 12 and has a pipe body 21 extending into the exhaust channel 11. The pipe body 21 has an air inlet 211 and an air outlet 212. The air inlet 211 communicates with the cooking cavity, and the air outlet 212 is opened on the side wall of the pipe body 21 and faces horizontally. The vent pipe 2 also has a blocking part 27 provided at the air outlet 212. The blocking part 27 blocks at least a part of the air outlet 212 and can move or deform relative to the pipe body 21 to open the air outlet 212.

[0048] It should be noted that this invention does not limit the control method for the movement or deformation of the blocking part 27. Preferably, the blocking part 27 can move or deform under the push of the gas inside the tube 21 to switch to the avoidance state. When the gas inside the tube 21 decreases and the thrust on the blocking part 27 is insufficient to maintain it in the avoidance state, the blocking part 27 can be reset under the action of gravity or its own elasticity. Of course, the movement or deformation control of the blocking part 27 can also be achieved by electrical control or manual control to make the timing of the movement or deformation of the blocking part 27 more reliable.

[0049] In this invention, at least a portion of the vent pipe 2 is inserted into the exhaust channel 11, thereby forming a steam valve together with the exhaust channel 11. Gas inside the pot enters the pipe body 21 through the air inlet 211 and enters the exhaust channel 11 through the air outlet 212. The vent pipe 2 can be removed from the cover 1, thereby opening the exhaust chamber 12, which allows the user to clean the vent pipe 2 and the interior of the exhaust channel 11 separately. The shielding part 27 can move or deform relative to the pipe body 21 under the propulsion of airflow, thus having a shielding state that at least partially blocks the air outlet 212, and a yielding state that fully opens the air outlet 212. This makes the conduction area of ​​the air outlet 212 variable. When the temperature inside the pot is not high or under low heat cooking, the shielding part 27 is in the shielding state, which can reduce the loss of heat and moisture inside the pot. When using high heat cooking, the shielding part 27 is in the yielding state, allowing the air outlet 212 to be fully opened, thereby reducing the pressure at the air outlet 212 and reducing the risk of liquid overflow. By designing the air outlet 212 of the vent as a variable-sized structure, it can meet the conduction area requirements under different working conditions, reducing the difficulty of size design and improving versatility.

[0050] Furthermore, the vent 212 is located on the side wall of the tube 21, so that the orientation of the vent 212 is perpendicular to the upward flow direction of the liquid and foam in the pot. When the liquid in the pot boils, it cannot directly flow to the vent 212, but will be blocked by the top wall of the tube 21. When the liquid and foam collide with the top wall of the tube 21, it will accelerate the liquid's fall back and the bubbles' breakage. This reduces the risk of liquid and foam entering the exhaust channel 11 through the vent 212, and also prevents the liquid and foam from directly contacting the shield 27 and sticking to it, keeping the shield 27 clean. This allows it to move or deform reliably under force, improving functional reliability.

[0051] Preferably, the vent pipe 2 is made of a flexible, high-temperature resistant material, such as silicone.

[0052] This invention does not limit the orientation of the air inlet 211. In one embodiment, the air inlet 211 is located on the bottom wall of the tube 21, facing downwards, so that the gas inside the pot can directly rise into the tube 21. In a preferred embodiment, such as... Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the air inlet 211 is also located on the side wall of the tube 21, so that the air inlet 211 also faces the horizontal direction. This creates an air inlet bend at the air inlet 211. When the gas in the pot rises to the tube 21, it needs to turn about 90° before entering the air inlet 211. This creates a certain bubble-breaking and overflow-preventing effect at the air inlet 211, preventing a large amount of liquid and foam from rushing into the tube 21 along with the gas.

[0053] It should be noted that the present invention does not limit the method of switching the state of the blocking part 27, which can be one of the following embodiments:

[0054] Implementation Method 1: In this embodiment, the blocking part 27 can move relative to the tube body 21 to switch between a blocking state and an avoidance state. Specifically, as shown... Figures 2 to 7 As shown, one end of the blocking part 27 is connected to the pipe body 21, so that the blocking part 27 can swing around the connection to open or block the air outlet 212. In this embodiment, the blocking part 27 can swing relative to the pipe body 21 to achieve state switching. In other embodiments, the blocking part 27 can also switch states through other movement methods, such as translation, etc.

[0055] One end of the shielding part 27 is rotatably connected to the tube body 21, so that when the shielding part 27 is pushed, it can swing around the connection point to complete the state switching. This setting not only makes the movement of the shielding part 27 more reliable, but also simplifies the assembly with the tube body 21. At the same time, the shielding part 27 always remains connected to the tube body 21 and can swing relative to it. When the user removes the vent tube 2 for cleaning, they can easily clean the shielding part 27 and save the step of installing the shielding part 27, improving the convenience of user assembly and disassembly.

[0056] Furthermore, such as Figures 3 to 7 As shown, the ventilation tube 2 also includes a connecting part 28. One end of the shielding part 27 is connected to the tube body 21 through the connecting part 28. The thickness of the connecting part 28 is less than the thickness of the tube body 21.

[0057] The thickness of the connecting part 28 is reduced to be less than that of the tube body 21. While ensuring the stability of the connection, the connecting part 28 is more likely to deform or move. As a result, when the amount of gas in the pot increases, the blocking part 27 can react and move in time under the push of the gas, ensuring that the gas outlet 212 opens in time and avoiding the occurrence of overflow.

[0058] It should be noted that this embodiment does not limit the connection position between the shielding part 27 and the tube body 21. In a preferred embodiment, such as... Figures 3 to 7 As shown, the connecting part 28 is located above the air outlet 212 so that the blocking part 27 can be flipped upward to open the air outlet 212.

[0059] The connecting part 28 is located above the air outlet 212. When the blocking part 27 is pushed by the gas inside the pipe body 21, it flips upward to open the air outlet 212. The gas inside the pipe body 21 flows out laterally through the air outlet 212. However, due to the obstruction of the blocking part 27, the gas must bypass the blocking part 27 to flow upward smoothly. In this way, the upwardly flipped blocking part 27 further lengthens the gas flow path, which helps to reduce the kinetic energy of the gas, thereby causing the liquid and foam carried in the gas to break and flow back, completing gas-liquid separation, and further reducing the risk of liquid and foam overflowing from the exhaust channel 11. In addition, when the amount of gas in the pipe body 21 is small, the blocking part 27 can flip downward under its own gravity to block at least part of the air outlet 212. There is no need to set up additional components to provide a force for the blocking part 27 to reset, so that the blocking part 27 can reset in time, and the structure of the vent pipe 2 is simplified, saving costs.

[0060] Of course, in other embodiments, the connecting portion 28 may also be located below the air outlet 212, or on the lateral side of the air outlet 212, so that the blocking portion 27 can be flipped downwards or horizontally to open the air outlet 212, which is not limited here. In this case, when the pushing force of the gas on the blocking portion 27 decreases, the blocking portion 27 can be reset by its own elasticity.

[0061] Implementation Method 2: In this embodiment, the blocking portion 27 can deform relative to the tube body 21 to switch between a blocking state and an avoidance state. For example, in one embodiment, the blocking portion 27 includes multiple elastic flaps, each having a connecting end connected to the tube body 21 and a free end. In the blocking state, the free ends of the multiple elastic flaps stack to block the air outlet 212. When the gas inside the tube body 21 increases, it pushes the free end of the elastic flap to swing around the connecting end, thereby opening the air outlet 212 and switching to the avoidance state.

[0062] This invention does not limit the conduction state of the vent 212 when the blocking part 27 is in the blocking state. In one embodiment, when the blocking part 27 is in the blocking state, it completely blocks the vent 212, thus isolating the inside of the pot from the outside at the vent 212. When the blocking part 27 switches to the avoidance state, the inside of the pot is connected to the outside at the vent 212.

[0063] As a preferred embodiment of this utility model, such as Figure 2 , Figure 4 As shown, the area of ​​the blocking portion 27 is smaller than the area of ​​the air outlet 212, so that the air outlet 212 has a blocking area blocked by the blocking portion 27, and a conducting area 213 located between at least a portion of the edge of the air outlet 212 and the edge of the blocking portion 27.

[0064] During cooking, sometimes the pressure inside the pot is lower than that of the outside atmosphere. Under the influence of the pressure difference, the lid will stick to the pot body, creating a suction effect. In this case, the user needs to use more force to open the lid, making it inconvenient to open.

[0065] In this embodiment, when the shielding part 27 is in the shielding state, it does not completely block the air outlet 212. There is a conductive area 213 between the two, so the inside of the pot is not completely isolated from the external environment, but can be connected to the outside through the conductive area 213, thereby keeping the air pressure inside the pot and outside balanced. This avoids the lid from being unable to open normally when the air pressure inside the pot is lower than the outside atmospheric pressure, which would cause a suction phenomenon.

[0066] Specifically, such as Figure 4 As shown, one end of the blocking part 27 is fixedly connected to the area of ​​the pipe body 21 above the air outlet 212. The blocking part 27 hangs down naturally to block the air outlet 212. When the gas in the pipe body 21 pushes the blocking part 27, it can flip upward to fully open the air outlet 212. The length of the blocking part 27 is less than the height of the air outlet 212, that is, there is a gap between the lower edge of the blocking part 27 and the lower edge of the air outlet 212, and this gap constitutes the conducting area 213.

[0067] In a preferred embodiment, such as Figures 4 to 7 As shown, the side wall of the tube body 21 is also provided with a limiting protrusion 29, and the blocking part 27 can contact the limiting protrusion 29 so that there is a lateral gap between the blocking part 27 and the side wall of the tube body 21.

[0068] When the blocking part 27 is in the blocking state, it contacts the limiting protrusion 29, thus preventing it from completely adhering to the surface of the tube 21. This reduces the contact area between the blocking part 27 and the tube 21, lowering the risk of moisture, rice water, etc., causing the blocking part 27 to stick to the tube 21, ensuring the normal movement or deformation of the blocking part 27. On the other hand, the limiting protrusion 29 stops and limits the blocking part 27, creating a gap between the blocking part 27 and the tube 21. Therefore, even when the blocking part 27 is in the blocking state, the environment inside the pot is not completely isolated from the external environment, but can communicate through the gap between the blocking part 27 and the tube 21. This also prevents the lid from being unable to open normally when the pressure inside the pot is lower than the external atmospheric pressure, causing the lid to stick.

[0069] Specifically, there are multiple limiting protrusions 29, which are spaced apart on the outside of the air outlet 212 so that a connecting channel is formed between two adjacent limiting protrusions 29.

[0070] Preferably, such as Figure 2 , Figure 3As shown, the exhaust chamber 12 includes a first chamber 121 and a second chamber 122 arranged horizontally. The pipe body 21 extends into the first chamber 121. The cover body 1 has an exhaust port 13 that communicates with the second chamber 122. An exhaust baffle 14 is provided between the first chamber 121 and the second chamber 122.

[0071] The first chamber 121 and the second chamber 122 are arranged horizontally, thus perpendicular to the upward direction of the fluid in the pot. This means that when the gas in the pot enters the exhaust chamber 12 through the pipe 21, its upward flow will be blocked by the top wall of the exhaust chamber 12, forcing it to flow horizontally from the first chamber 121 into the second chamber 122. This causes the airflow to change direction at least once within the exhaust chamber 12, thereby lengthening the gas flow path and improving the bubble-breaking and overflow prevention effect. The outlet baffle 14 further obstructs the flow of gas from the first chamber 121 to the second chamber 122, causing the gas to bypass the outlet baffle 14, further lengthening the gas path and improving the gas-liquid separation effect.

[0072] Specifically, such as Figure 3 As shown, after the vent pipe 2 is installed with the cover 1, the air inlet 211 of the pipe body 21 forms the entrance to the exhaust channel 11, and the top wall of the second chamber 122 is provided with an exhaust port 13. The gas in the pot enters the pipe body 21 through the air inlet 211, and then enters the first chamber 121 of the exhaust chamber 12 through the air outlet 212. Then it passes over the exhaust baffle 14 and enters the second chamber 122, and is discharged from the exhaust port 13.

[0073] like Figure 2 , Figure 3 As shown, the exhaust baffle 14 is disposed on the top wall of the exhaust chamber 12 and extends downward to form an air passage gap between the bottom wall of the exhaust chamber 12 and the bottom wall of the exhaust chamber 12.

[0074] Furthermore, such as Figure 2 , Figure 3 As shown, the air outlet 212 is located on the side of the pipe body 21 away from the second chamber 122.

[0075] The outlet 212 is located away from the second chamber 122, which can further lengthen the air path, so that the airflow needs to bypass the pipe 21 to flow into the second chamber 122. This effectively reduces the kinetic energy of the airflow and helps to complete gas-liquid separation in the exhaust chamber 12, preventing bubbles and liquid from entering the second chamber 122 with the airflow.

[0076] Preferably, such as Figure 2 , Figure 3 As shown, the vent pipe 2 also includes a mating lip 23 located on the outer periphery of the pipe body 21, and the cover 1 has a downwardly extending mating rib 15. The mating rib 15 forms an exhaust channel 11, and the mating lip 23 and the mating rib 15 cooperate to form an exhaust chamber 12.

[0077] The top surface of the cover 1 is provided with a downwardly extending mating rib 15, which forms an exhaust channel 11. The bottom of the exhaust channel 11 is open. By installing the vent pipe 2 on the cover 1, the pipe body 21 extends into the exhaust channel 11, and the mating lip 23 abuts against the mating rib 15 to seal, so that the vent pipe 2 closes the bottom of the exhaust channel 11, thus forming an exhaust chamber 12. In this way, when the vent pipe 2 is removed from the cover 1, the bottom of the exhaust channel 11 is opened, allowing the user to clean the vent pipe 2 and the inside of the exhaust channel 11 separately, improving the convenience of cleaning the inside of the exhaust chamber 12.

[0078] Specifically, such as Figure 1 , Figure 4 , Figure 5 As shown, the vent pipe 2 has a mating part 22, which forms the bottom wall of the exhaust chamber 12. The mating lip 23 is located on the outer periphery of the mating part 22. A fixing groove 24 is provided below the mating part 22. The pot lid also includes an inner cover 3, which has an installation opening. The edge of the installation opening can engage with the fixing groove 24 to fix the vent pipe 2 to the inner cover 3. The inner cover 3 is a detachable structure from the lid body 1. Therefore, when the user removes the inner cover 3, the vent pipe 2 is also removed along with the inner cover 3, making it convenient for cleaning the inner cover 3 and the vent pipe 2. At the same time, after the inner cover 3 engages with the fixing groove 24, the inner cover 3 can also support the mating part 22 above. Since the inner cover 3 is a rigid structure and the vent pipe 2 is made of flexible material, the mating part 22 remains stable under the support of the inner cover 3, preventing the mating part 22 from deforming due to the push of the gas in the exhaust chamber 12.

[0079] In a preferred embodiment, such as Figure 4 , Figure 5 As shown, the vent pipe 2 is also provided with a downward recessed recessed part 25. The bottom wall of the recessed part 25 is provided with a return port 251. A return valve 26 is provided at the return port 251. The return valve 26 can move up and down to open or block the return port 251.

[0080] The vent pipe 2 forms the bottom wall of the exhaust chamber 12, and the recessed part 25 is the lowest point inside the exhaust chamber 12. The condensate, food broth and other liquids in the exhaust chamber 12 will collect in the recessed part 25 under their own gravity. By setting a return port 251 in the recessed part 25, the liquid can flow back into the pot through the return port 251, and will not accumulate in the exhaust chamber 12 for a long time, thereby further reducing the risk of liquid overflowing out of the pot.

[0081] Specifically, the reflux valve 26 has an upward and a downward state. When the gas in the pot pushes the reflux valve 26 to the upward state, the reflux valve 26 blocks the reflux port 251. At this time, the gas in the pot can only enter the exhaust chamber 12 through the air inlet 211 of the pipe body 21. When the gas in the pot decreases and is insufficient to keep the reflux valve 26 in the upward state, the reflux valve 26 falls to the downward state under its own gravity. At this time, the reflux port 251 opens, and the liquid accumulated in the exhaust chamber 12 can drip into the pot through the reflux port 251.

[0082] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0083] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0084] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A cooking utensil, comprising a lid and a pot body, the lid and the pot body forming a cooking cavity, the lid comprising a cover body and a vent pipe, the cover body having a venting channel, the vent pipe cooperating with the cover body to form a venting cavity, and having a tube extending into the venting channel, characterized in that, The pipe has an air inlet and an air outlet. The air inlet is connected to the cooking cavity. The air outlet is located on the side wall of the pipe and faces horizontally. The vent pipe also has a shielding part located at the air outlet. The shielding part shields at least a portion of the air outlet and can move or deform relative to the pipe to open the air outlet.

2. The cooking utensil according to claim 1, characterized in that, One end of the shielding part is connected to the tube body, so that the shielding part can swing around the connection point to open or block the air outlet.

3. The cooking utensil according to claim 2, characterized in that, The vent pipe also includes a connecting part, one end of which is connected to the pipe body via the connecting part, and the thickness of the connecting part is less than the thickness of the pipe body.

4. The cooking utensil according to claim 3, characterized in that, The connecting part is located above the air outlet so that the blocking part can be flipped upward to open the air outlet.

5. The cooking utensil according to claim 1, characterized in that, The area of ​​the shielding part is smaller than the area of ​​the air outlet, so that the air outlet has a shielding area blocked by the shielding part, and a conduction area located between at least a portion of the edge of the air outlet and the edge of the shielding part.

6. The cooking utensil according to claim 1, characterized in that, The side wall of the tube is also provided with a limiting protrusion, and the blocking part can contact the limiting protrusion to make a lateral gap between the blocking part and the side wall of the tube.

7. The cooking utensil according to claim 1, characterized in that, The exhaust chamber includes a first chamber and a second chamber arranged horizontally. The pipe extends into the first chamber, and the cover has an exhaust port that communicates with the second chamber. An exhaust baffle is provided between the first chamber and the second chamber.

8. The cooking utensil according to claim 7, characterized in that, The air outlet is located on the side of the pipe body away from the second chamber.

9. The cooking utensil according to claim 1, characterized in that, The vent pipe also includes a mating lip located on the outer periphery of the pipe body, and the cover has a downwardly extending mating rib. The mating rib forms the exhaust channel, and the mating lip and the mating rib cooperate to form the exhaust chamber.

10. The cooking utensil according to claim 1, characterized in that, The vent pipe is also provided with a downwardly recessed recessed part, and the bottom wall of the recessed part is provided with a return port. A return valve is provided at the return port, and the return valve can move up and down to open or block the return port.

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