Cooking utensil capable of switching sealing state

Abstract

The utility model discloses a cooking utensil capable of switching sealing states, which comprises a pot body with a cooking cavity and a pot cover, the pot cover comprises a cover body and a pressure-bearing inner cover, the cooking utensil further comprises a pressure conversion piece and a driving assembly which are arranged on the pot cover, and the pressure conversion piece comprises a valve seat fixed on the pressure-bearing inner cover. The upper valve body is connected with the valve seat in an up-down sliding manner; the valve seat is provided with a valve cavity which faces the cooking cavity and is communicated with the cooking cavity; an exhaust channel is arranged between the valve seat and the upper valve body; one end of the valve core is connected with the upper valve body, and the other end is provided with a sealing part positioned in the valve cavity; the driving assembly drives the upper valve body to move up and down to drive the valve element to move up and down in the valve cavity so that the sealing part can seal or open the exhaust channel. According to the pressure conversion device, the built-in valve element structure moves, a space for the valve element to move does not need to be reserved above the pressure conversion piece, and the pressure conversion piece can be contained in the cooker cover. Therefore, attractiveness of the pot cover is improved, and cleanness of the pressure conversion part is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and in particular relates to a cooking utensil capable of switching sealing states. Background Art

[0002] Pressure cooking appliances, such as electric pressure cookers, are common cooking appliances in home kitchens. However, electric pressure cookers are usually only capable of pressure cooking, and cannot perform normal pressure cooking. When performing simpler cooking procedures such as steaming rice and cooking porridge, the electric pressure cooker will still pressurize and complete the cooking under pressure. In this way, the electric pressure cooker will perform the pressure increase and pressure relief procedures every time it cooks, which increases the overall cooking time. If users want to use normal pressure cooking, they can only purchase cooking appliances such as normal pressure rice cookers separately.

[0003] In recent years, a multifunctional cooking device has emerged, which can realize pressure cooking and be used as an electric pressure cooker, and can also realize normal pressure cooking and be used as an ordinary rice cooker, integrating pressure cooking and normal pressure cooking in one machine, greatly improving the user experience. For example, Chinese patent CN208941734U discloses a cooking device that can realize pressure cooking and pressureless cooking, and its working principle is that the exhaust component includes a first tube body, a second tube body located above the first tube body, and a sealing structure located at the upper end of the first tube body, wherein the second tube body can be driven by a driving device to float up and down, so that the sealing structure opens the exhaust hole on the side wall of the second tube body, and then connects the environment in the pot with the outside through the vent pipe. When cooking in this state, the inside and outside of the pot are always connected, thereby realizing normal pressure cooking; or the sealing structure blocks the exhaust hole on the side wall of the second tube body to isolate it from the environment in the pot, so that the environment in the pot is isolated from the outside at the exhaust component, and the pot can be normally pressurized during cooking to realize pressure cooking.

[0004] In the above solution, the driving device needs to drive the upper tube body, which not only has a large volume and weight of the moving parts, but also needs to overcome the friction generated by the interference fit between the moving parts and the sealing structure. Therefore, the driving device needs to provide a large driving force, so a high-power driving part is needed, which increases the cost. If it is driven manually, the user's operation is also more laborious.

[0005] In addition, since the upper tube body needs to float up and down, in order to prevent the tube body from interfering with other parts of the pot cover during the floating process, the upper end of the exhaust assembly in the prior art usually protrudes out of the pot cover. This not only affects the overall shape of the cooking utensil, but also the outer leakage of the tube body is prone to blockage, which is difficult for users to clean. Utility Model Content

[0006] The utility model provides a cooking utensil with a switchable sealing state, so as to solve the problems in the prior art that a large driving force is required to drive the exhaust component, the operation is laborious, the cost is increased, and the upper end of the exhaust component is exposed outside the pot cover, which affects the appearance and makes the exhaust component easy to be blocked and difficult to clean.

[0007] The technical solution adopted by the utility model is:

[0008] A cooking utensil with switchable sealing state comprises a pot body with a cooking cavity and a pot cover, the pot cover comprises a cover body and a pressure-bearing inner cover, the cooking utensil further comprises a pressure conversion component and a driving assembly arranged on the pot cover, the pressure conversion component comprises a valve seat fixed on the pressure-bearing inner cover, an upper valve body connected to the valve seat for sliding up and down, and a valve core; the valve seat is provided with a valve cavity facing the cooking cavity and connected to the cooking cavity; an exhaust passage is provided between the valve seat and the upper valve body; one end of the valve core is connected to the upper valve body, and the other end is provided with a sealing portion located in the valve cavity; the driving assembly drives the upper valve body to move up and down to drive the valve core to move up and down in the valve cavity, so that the sealing portion seals or opens the exhaust passage.

[0009] The cooking utensil capable of switching the sealing state of the utility model also has the following additional technical features:

[0010] The top wall of the valve seat is provided with an exhaust port connected to the exhaust channel, and a first sealing member is arranged between the upper valve body and the valve seat. When the upper valve body moves downward to its position, the first sealing member abuts and seals against the upper valve body and the valve seat respectively, and the valve cavity is connected with the exhaust channel through the exhaust port.

[0011] The cover body is provided with an air outlet, a second sealing member is arranged at the air outlet, the second sealing member has a through port, the upper end of the upper valve body is plugged and fixed with the through port, and the second sealing member is also provided with a pleated layer on the periphery of the through port.

[0012] One of the valve seat and the upper valve body is provided with a fixing protrusion, and the other of the two is provided with a fixing groove, the fixing groove has a locking position and an unlocking position arranged at intervals in the circumferential direction, the unlocking position has an opening for the fixing protrusion to enter and exit the fixing groove, and the upper valve body and the valve seat can rotate relative to each other so that the fixing protrusion can switch between the locking position and the unlocking position.

[0013] The valve core is provided with an anti-overflow portion located in the valve cavity, the sealing portion is arranged on the anti-overflow portion, and a bubble breaking tip is arranged at the lower end of the anti-overflow portion.

[0014] The driving assembly comprises a driving member and a transmission member. The driving member is used to drive the transmission member to move or rotate so that the transmission member drives the upper valve body to move.

[0015] The driving member is a motor, the output shaft of the motor is provided with a first meshing tooth, and the transmission member is provided with a second meshing tooth matched with the first meshing tooth, so that the transmission member can move toward the pressure conversion member to drive the upper valve body.

[0016] The pressure-bearing inner cover also includes a float valve and an exhaust pipe, and the float valve, the exhaust pipe and the pressure conversion component are arranged in a staggered manner.

[0017] The pressure conversion component also includes an elastic component, which is used to apply an upward thrust to the upper valve body to cause the upper valve body to float upward and reset.

[0018] The top wall of the valve seat is provided with an exhaust port communicating with the valve cavity and the exhaust channel. The sealing part abuts against the top wall of the valve seat to seal the exhaust port. When the valve core moves downward, the sealing part separates from the valve seat to open the exhaust port.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. In the utility model, the valve seat is fixed on the pressure-bearing inner cover, and its position is fixed. The driving component drives the valve core to move in the valve cavity inside the valve seat, so as to realize the switching between the pressure mode and the non-pressure mode. The valve core is small in size and light in weight, and the driving component only needs a small force to drive it to move, so that it can be driven by a low-power driver, which is more labor-saving for users to drive manually. In addition, the built-in valve core structure moves, and there is no need to reserve space for the valve core movement above the pressure conversion component, so the pressure conversion component can be accommodated inside the pot cover. This not only improves the uniformity and beauty of the appearance of the pot cover, but also ensures the cleanliness of the pressure conversion component, prevents external impurities, dust, etc. from entering the pressure conversion component, causing pollution or clogging of the internal channel, reduces the user's cleaning pressure, and improves the user experience.

[0021] In addition, the upper valve body is located outside the valve seat and is slidably connected to the valve seat. The drive assembly cooperates with the upper valve body to drive the upper valve body to move, so that the upper valve body carries the valve core and floats up and down relative to the valve seat. The valve core is fixedly connected to the upper valve body, so that the upper valve body can drive the valve core to move. The sealing part of the valve core is located inside the valve seat, and the upper valve body is located outside the valve seat. Therefore, the drive assembly cooperates with the upper valve body, and then drives the upper valve body to move and drives the valve core to move, so that the drive assembly indirectly drives the valve core, making the control of the valve core by the drive assembly simpler and more convenient, while also avoiding the drive assembly directly driving the valve core, so that there is no need to open an opening on the valve seat for the drive assembly to extend into, ensuring the sealing of the internal channel.

[0022] 2. As a preferred embodiment of the utility model, an exhaust port is provided on the top wall of the valve seat, and a first sealing member is provided between the upper valve body and the valve seat. When the upper valve body moves into position, the first sealing member abuts and seals against the upper valve body and the valve seat respectively, and the exhaust port is connected to the exhaust channel. When the valve core and the upper valve body are in the initial position, the exhaust channel is separated from the exhaust port on the valve seat, and at the same time, the sealing portion of the valve core abuts against the top wall of the valve seat to seal the exhaust port, so that the gas in the pot cannot be discharged through the exhaust port. When the upper valve body and the valve core move into position, the upper valve body and the valve seat abut and squeeze the first sealing member, so that it seals the gap between the upper valve body and the valve seat, and at the same time, the exhaust channel and the exhaust port are connected to each other, and the sealing portion is separated from the top wall of the valve seat, and the gas in the pot can enter the exhaust channel through the exhaust port and then be discharged to the outside world, maintaining a pressure-free environment in the pot. In addition, the exhaust port is opened on the top wall of the valve seat, and the exhaust channel also extends up and down, so that when the exhaust channel or the exhaust port is blocked, the user can inject water into the exhaust channel from top to bottom to flush the internal dirt, thereby improving the convenience of cleaning for the user.

[0023] 3. As a preferred embodiment of the utility model, the cover body is provided with an air outlet, and a second sealing member is provided at the air outlet. The second sealing member has a through port, and the upper end of the upper valve body is plugged and fixed with the through port, and the second sealing member is further provided with a pleated layer on the periphery of the through port. The upper end of the upper valve body is plugged and fixed with the through port of the second sealing member, so as to realize a sealed connection between the interior of the upper valve body and the air outlet, and the gas inside the upper valve body is discharged through the air outlet without escaping inside the pot cover. At the same time, since the upper valve body can move downward, and then by providing a pleated layer on the second sealing member, it can be stacked or unfolded with the movement of the upper valve body, and then when the upper valve body moves, the pleated layer moves accordingly, thereby ensuring the connection stability and sealing stability between the upper valve body and the second sealing member.

[0024] 4. As a preferred embodiment of the utility model, the pressure-bearing inner cover also includes a float valve and an exhaust pipe, and the float valve and the pressure conversion element are staggered. The float valve and the pressure conversion element are staggered so that during the exhaust process, the gas in the pot can be discharged from the float valve and the pressure conversion element at the same time, and the channel size of the pressure conversion element can be designed to be larger than the float valve channel, so that more gas can be discharged from the pressure conversion element, thereby avoiding the clogging of the float valve when the liquid in the pot is ejected with the gas, or the gas pushing the float valve upward to close the float valve, affecting the exhaust efficiency. In this solution, most of the gas in the pot is discharged through the pressure conversion element, and the pushing force of the gas on the float valve is small, so it can be ensured that the float valve and the pressure conversion element are both conductive, so that the gas in the pot can be discharged more quickly through multiple channels, the exhaust speed is improved, and the pressure in the pot is avoided. Increase.

[0025] 5. As a preferred embodiment of the utility model, the top wall of the valve seat is provided with an exhaust port connecting the valve cavity and the exhaust channel, the sealing part abuts against the top wall of the valve seat to seal the exhaust port, and when the valve core moves downward, the sealing part is separated from the valve seat to open the exhaust port. When the valve core is in the initial position, the sealing part abuts against the valve seat to seal the exhaust port, and the pressure conversion element is in a pressurized state at this time. When the upper valve body is driven by the driving assembly, it moves downward to separate the sealing part from the valve seat, so that the exhaust port is connected, and the pressure conversion element is switched to a non-pressurized state at this time. The movement direction of the valve core is downward, that is, it moves toward the inside of the pot, and the space inside the pot is larger, which not only avoids interference during the movement of the valve core, but also does not raise the position of the valve core. Therefore, there is no need to reserve space for the movement of the valve core above the pressure conversion element, and the pressure conversion element can be accommodated inside the pot cover. In this way, the uniformity and beauty of the appearance of the pot cover are improved, and the cleanliness of the pressure conversion element is ensured, and external impurities, dust, etc. are prevented from entering the inside of the pressure conversion element, causing pollution or clogging of the internal channel, reducing the cleaning pressure of the user, and improving the use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0027] Figure 1 It is a cross-sectional view of a cooking appliance according to an embodiment of the utility model, wherein the pressure conversion element is in a pressurized state;

[0028] Figure 2 It is a cross-sectional view of a cooking appliance according to an embodiment of the utility model, wherein the pressure conversion element is in a pressure-free state;

[0029] Figure 3 A cross-sectional view of a pressure conversion member in one embodiment of the utility model;

[0030] Figure 4 This is a structural explosion view of a pressure conversion member in one embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of a valve seat in one embodiment of the utility model;

[0032] Figure 6 for Figure 5 Top view of the middle valve seat;

[0033] Figure 7 This is a bottom view of the upper valve body in one embodiment of the utility model;

[0034] Figure 8A schematic structural diagram of a pressure conversion member in another embodiment of the utility model from another perspective;

[0035] Fig. 9 This is a schematic structural diagram of a pressure-bearing inner cover in one embodiment of the utility model;

[0036] Fig.10 This is a schematic diagram of the structure of a cooking appliance according to an embodiment of the present invention, wherein the exhaust cover is not shown;

[0037] Fig.11 The figure is a schematic diagram of the structure of a cooking utensil in one embodiment of the present invention.

[0038] in:

[0039] 1 pot body;

[0040] 2 pot cover; 21 cover body; 22 pressure-bearing inner cover; 23 exhaust pipe; 24 float valve; 25 exhaust chamber;

[0041] 3 pressure conversion member; 31 valve seat; 311 abutting rib; 312 valve cavity; 313 fixing groove; 314 unlocking position; 315 locking position; 316 opening; 317 through hole; 318 exhaust port; 32 valve core; 321 sealing part; 322 bubble breaking tip; 33 upper valve body; 331 matching part; 332 clamping protrusion; 333 mounting groove; 334 exhaust channel; 335 fixing protrusion; 35 first sealing member; 36 elastic member; 37 second sealing member; 371 through hole; 372 pleated layer; 373 clamping groove;

[0042] 4 driving assembly; 41 driving member; 411 first meshing tooth; 42 transmission member; 421 second meshing tooth; 422 pressing portion;

[0043] 5 Exhaust cover. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate 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 protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0046] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0049] like Figure 1 , Figure 2 As shown, a cooking utensil with switchable sealing state comprises a pot body 1 with a cooking cavity and a pot cover 2, the pot cover 2 comprises a cover body 21 and a pressure-bearing inner cover 22, the cooking utensil further comprises a pressure conversion member 3 and a driving assembly 4 arranged on the pot cover 2, the pressure conversion member 3 comprises a valve seat 31 fixed on the pressure-bearing inner cover 22, an upper valve body 33 connected to the valve seat 31 for sliding up and down, and a valve core 32; the valve seat 31 is provided with a valve cavity 312 facing the cooking cavity and communicating with the cooking cavity; an exhaust passage 334 is provided between the valve seat 31 and the upper valve body 33; one end of the valve core 32 is connected to the upper valve body 33, and the other end is provided with a sealing portion 321 located in the valve cavity 312; the driving assembly 4 drives the upper valve body 33 to move up and down to drive the valve core 32 to move up and down in the valve cavity 312, so that the sealing portion 321 seals or opens the exhaust passage 334.

[0050] In the utility model, the valve seat 31 is fixed on the pressure-bearing inner cover 22, and its position is fixed. The driving component 4 drives the valve core 32 to move in the valve cavity 312 inside the valve seat 31, so as to realize the switching between the pressurized and unpressurized states. The valve core 32 is small in size and light in weight. The driving component 4 only needs a small force to drive it to move, and then a low-power driving component can be used for driving, which is more labor-saving when the user drives it manually. In addition, the built-in valve core structure moves, and there is no need to reserve space for the valve core 32 to move above the pressure conversion component 3, and the pressure conversion component 3 can be accommodated inside the pot cover 2. This not only improves the uniformity and beauty of the appearance of the pot cover 2, but also ensures the cleanliness of the pressure conversion component 3, prevents external impurities, dust, etc. from entering the pressure conversion component 3, causing pollution or clogging of the internal channel, reduces the user's cleaning pressure, and improves the user experience.

[0051] The valve core 32 is fixedly connected to the upper valve body 33, so that the upper valve body 33 can drive the valve core 32 to move. The valve core 32 is located inside the valve seat 31, and the upper valve body 33 is located outside the valve seat 31. Therefore, the drive component 4 cooperates with the upper valve body 33, and then drives the valve core 32 to move by driving the upper valve body 33, so that the drive component 4 indirectly drives the valve core 32, making the control of the valve core 32 by the drive component 4 simpler and more convenient, and also avoiding the drive component 4 directly driving the valve core 32, so that there is no need to open an opening on the valve seat 31 for the drive component 4 to extend into, thereby ensuring the sealing of the internal channel.

[0052] Specifically, Figure 3 As shown, the upper valve body 33 has a matching portion 331 for matching with the driving assembly 4, and a matching inclined surface is provided on the upper side of the matching portion 331. The driving assembly 4 can press the matching inclined surface to make the upper valve body 33 carry the valve core 32 to move downward.

[0053] Preferably, the pressure-bearing inner cover is also provided with a float valve 24 and an exhaust pipe 23. It should be noted that in the present invention, the "pressurized state" and "non-pressurized state" of the pressure conversion element 3 do not refer to the gas pressure state in the pot. Rather, it is the premise for the cooking utensil to perform pressure cooking or normal pressure cooking. Specifically, when the pressure conversion element 3 is in a pressurized state, the pressure conversion element 3 is sealed and isolated from the environment in the pot, so that the gas in the pot cannot be discharged through the pressure conversion element 3. At this time, the cooking utensil is consistent with the pressurization method of a conventional pressure cooker. As the temperature in the pot increases and the gas in the pot increases, the gas gradually pushes the float valve 24 upward to block it, and the exhaust pipe 23 is also blocked by the heavy hammer. Thereby, the environment in the pot is completely isolated from the outside atmosphere, and pressure cooking can be performed in the pot.

[0054] When the pressure conversion element 3 is in a pressure-free state, the pressure conversion element 3 connects the environment in the pot with the outside atmosphere. When cooking is performed in this state, the gas in the pot can be discharged out of the pot in time to ensure that the pot is in a normal pressure environment. Preferably, the flow area of ​​the connecting channel of the pressure conversion element 3 is larger than the exhaust pipe 23 and the float valve 24, so that most of the gas in the pot is discharged from the pressure conversion element 3. Even if the float valve 24 floats up and closes under the push of the gas in the pot, and the exhaust pipe 23 is blocked by a heavy hammer, the gas in the pot can still be discharged in time through the pressure conversion element 3. That is to say, when the cooking appliance is in a pressure-free mode, the gas in the pot can be discharged only through the pressure conversion element 3, or it can be discharged through the pressure conversion element 3, the float valve 24 and the exhaust pipe 23 together.

[0055] Preferably, the pressure conversion element 3 is independently provided from the exhaust pipe 23, so that the two can be exhausted through their own independent pipes, thereby getting rid of the limitation on the inner diameter of the pipe of the pressure conversion element 3 in the pressure cooking mode, so that the inner diameter of the pipe of the pressure conversion element 3 can be appropriately increased, and the exhaust volume can be increased while effectively preventing blockage. It is avoided that the two share a channel and both the working pressure (requiring a smaller aperture of the exhaust pipe) and the sufficient exhaust volume (requiring a larger aperture of the exhaust pipe) must be considered, which leads to the problem of difficult balanced design and poor adaptability.

[0056] Of course, the pressure conversion element 3 and the exhaust pipe 23 may also share an exhaust passage.

[0057] In a preferred embodiment, Figure 1 , Figure 2 As shown, the float valve 24 and the pressure conversion element 3 are staggeredly arranged on the pressure-bearing inner cover 22 .

[0058] The float valve 24 and the pressure conversion element 3 are staggered so that during the exhaust process, the gas in the pot can be discharged from the float valve 24 and the pressure conversion element 3 at the same time, and the channel size of the pressure conversion element 3 can be designed to be larger than the channel of the float valve 24, so that more gas can be discharged from the pressure conversion element 3, thereby preventing the float valve 24 from being blocked when the liquid in the pot is ejected with the gas, or the float valve 24 from being pushed up by the gas to close the float valve 24, thereby affecting the exhaust efficiency. In this scheme, most of the gas in the pot is discharged through the pressure conversion element 3, and the pushing force of the gas on the float valve 24 is small, so it can be ensured that the float valve 24 and the pressure conversion element 3 are both connected, so that the gas in the pot can be discharged more quickly through multiple channels, the exhaust speed is improved, and the pressure in the pot is prevented from rising.

[0059] Specifically, Figure 1 , Figure 2 , Fig.10As shown, the upper surface of the cover body 21 is provided with a downwardly recessed exhaust chamber 25, and the exhaust pipe 23, the float valve 24 and the pressure conversion element 3 are all connected to the exhaust chamber 25, so that the exhaust area of ​​the pot cover 2 is more concentrated. Fig.11 As shown, the pot cover 2 is also provided with an exhaust cover 5, and the exhaust cover 5 is arranged on the exhaust chamber 25 to decorate the pot cover 2 and improve the appearance quality.

[0060] Preferably, if Figure 1 , Figure 2 As shown, the top wall of the valve seat 31 opens an exhaust port 318 connected to the valve cavity 312 , and the sealing portion 321 abuts against the top wall of the valve seat 31 to seal the exhaust port 318 . When the valve core 32 moves downward, the sealing portion 321 separates from the valve seat 31 to open the exhaust port 318 .

[0061] The state switching mode of the pressure conversion element 3 is that when the valve core 32 is in the initial position, the sealing part 321 abuts against the valve seat 31 to seal the exhaust port 318, and the pressure conversion element 3 is in a pressurized state. When the upper valve body 33 is driven by the driving assembly 4, the valve core 32 is driven to move downward so that the sealing part 321 is separated from the valve seat 31, and the exhaust port 318 is connected. At this time, the pressure conversion element 3 is switched to a non-pressurized state. The movement direction of the valve core 32 is downward, that is, it moves toward the inside of the pot. The space inside the pot is larger, which not only avoids interference during the movement of the valve core 32, but also does not raise the position of the valve core 32. Therefore, there is no need to reserve space for the movement of the valve core 32 above the pressure conversion element 3, and the pressure conversion element 3 can be accommodated inside the pot cover 2. In this way, the uniformity and beauty of the appearance of the pot cover 2 are improved, and the cleanliness of the pressure conversion element 3 is ensured, and external impurities, dust, etc. are prevented from entering the inside of the pressure conversion element 3, causing pollution or clogging of the internal channel, reducing the cleaning pressure of the user, and improving the use experience.

[0062] Of course, the valve core 32 may also be moved upward to open the exhaust port 318 , which is not limited here.

[0063] Furthermore, if Figure 3 As shown, an exhaust port 318 is provided on the top wall of the valve seat 31, and a first sealing member 35 is provided between the upper valve body 33 and the valve seat 31. When the upper valve body 33 moves downward to its position, the first sealing member 35 abuts and seals against the upper valve body 33 and the valve seat 31 respectively, and the valve cavity 312 is connected to the exhaust channel 334 through the exhaust port 318.

[0064] When the valve core 32 and the upper valve body 33 are in the initial position, the exhaust passage 334 inside the upper valve body 33 is separated from the exhaust port 318 on the valve seat 31, and the sealing portion 321 of the valve core 32 abuts against the top wall of the valve seat 31 to seal the exhaust port 318, so that the gas in the pot cannot be discharged through the exhaust port 318. When the upper valve body 33 and the valve core 32 move downward to the right position, the upper valve body 33 and the valve seat 31 butt and squeeze the first sealing member 35, so that it seals the gap between the upper valve body 33 and the valve seat 31, and the exhaust passage 334 and the exhaust port 318 are butt-connected, and the sealing portion 321 is separated from the top wall of the valve seat 31, so that the gas in the pot can enter the exhaust passage 334 through the exhaust port 318 and then be discharged to the outside, so as to maintain a pressure-free environment in the pot.

[0065] In addition, the exhaust port 318 is provided on the top wall of the valve seat 31, and the exhaust channel 334 also extends up and down, so that when the exhaust channel 334 or the exhaust port 318 is blocked, the user can inject water into the exhaust channel 334 from top to bottom to wash away the dirt inside, thereby improving the convenience of cleaning for the user. The water flows through the exhaust channel 334 and the exhaust port 318 in turn to reach the bottom of the pot cover 2, and will not accumulate inside the pressure conversion member 3.

[0066] like Figure 5 , Figure 6 As shown, the valve seat 31 is provided with a through hole 317 for the valve core 32 to pass through, which can guide the movement of the valve core 32, and the exhaust port 318 is arranged around the through hole 317. Preferably, the area of ​​the exhaust port 318 is greater than 20 mm2. The projection of the sealing portion 321 covers the exhaust port 318, so that when the sealing portion 321 abuts against the top wall of the valve seat 31, the exhaust port 318 is completely sealed.

[0067] Specifically, this embodiment does not limit the assembly method of the first sealing member 35. In one embodiment, Figure 3 As shown, the first sealing member 35 is fixed to the upper valve body 33. Specifically, the upper valve body 33 has a mounting groove 333 for mounting the first sealing member 35, and the mounting groove 333 has a mating opening facing downward. The first sealing member 35 is disposed in the mounting groove 333, and the valve seat 31 has an upwardly protruding abutting rib 311. When the upper valve body 33 moves downward, the abutting rib 311 enters the mounting groove 333 from the mating opening, and abuts and seals with the first sealing member 35. The groove wall on the outer side of the mounting groove 333 is located on the outer periphery of the valve seat 31, so as to cooperate with the outer wall of the valve seat 31 to form a movement guide. Further, as Figure 3 As shown, the first sealing member 35 has a matching groove on one side facing the abutting rib 311 to make the contact between the first sealing member 35 and the abutting rib 311 more stable, thereby increasing the contact area and improving the sealing effect.

[0068] Of course, the first sealing member 35 may also be disposed on the valve seat 31 so that its position is immovable, and when the upper valve body 33 moves downward, it abuts against the first sealing member 35 to complete the sealing.

[0069] Preferably, if Figure 4 As shown, the cover body 21 is provided with an air outlet, and a second sealing member 37 is arranged at the air outlet. The second sealing member 37 has a through hole 371 , and the upper end of the upper valve body 33 is plugged and fixed to the through hole 371 . The second sealing member 37 is also provided with a pleated layer 372 on the outer periphery of the through hole 371 .

[0070] The upper end of the upper valve body 33 is plugged and fixed with the through hole 371 of the second sealing member 37, so as to realize the sealed connection between the interior of the upper valve body 33 and the gas outlet, and the gas inside the upper valve body 33 is discharged through the gas outlet without escaping inside the pot cover 2. At the same time, since the upper valve body 33 can move downward, the pleated layer 372 is provided on the second sealing member 37, so that it can be stacked or unfolded with the movement of the upper valve body 33, and when the upper valve body 33 moves, the pleated layer 372 moves accordingly, thereby ensuring the connection stability and sealing stability between the upper valve body 33 and the second sealing member 37.

[0071] Specifically, Figure 4 As shown, the second sealing member 37 is provided with a snap-fit ​​groove 373 on the inner wall of the through hole 371, and a snap-fit ​​protrusion 332 is provided on the upper end circumference of the upper valve body 33, and the snap-fit ​​protrusion 332 cooperates with the snap-fit ​​groove 373 to fix the two. Of course, the two can be fixed by other means, such as screw connection, etc., which is not limited here.

[0072] It should be noted that the present invention does not limit the connection method between the valve seat 31 and the upper valve body 33. In a preferred embodiment, Figures 5 to 8 As shown, one of the valve seat 31 and the upper valve body 33 is provided with a fixing protrusion 335, and the other of the two is provided with a fixing groove 313, the fixing groove 313 has a locking position 315 and an unlocking position 314 which are arranged at intervals in the circumferential direction, the unlocking position 314 has an opening 316 for the fixing protrusion 335 to enter and exit the fixing groove 313, the upper valve body 33 and the valve seat 31 can rotate relative to each other so that the fixing protrusion 335 can switch between the locking position 315 and the unlocking position 314.

[0073] Specifically, Figure 5 As shown, the fixing groove 313 extends along the circumference of the valve seat 31 or the upper valve body 33, one end of the fixing groove 313 is a locking position 315, and the other end is an unlocking position 314, the unlocking position 314 extends along the axial direction of the valve seat 31 or the upper valve body 33 and has an opening 316 for the fixing protrusion 335 to enter and exit the fixing groove 313, and the locking position 315 extends along the axial direction of the valve seat 31 or the upper valve body 33 to form a slideway for the fixing protrusion 335 to move up and down.

[0074] During assembly, first align the fixing protrusion 335 with the opening 316 of the unlocking position 314, then make the valve seat 31 and the upper valve body 33 move relative to each other in the axial direction, insert the fixing protrusion 335 into the fixing groove 313, then make the upper valve body 33 and the valve seat 31 rotate relative to each other, and rotate the fixing protrusion 335 to the locking position 315. At this time, the fixing protrusion 335 can slide up and down in the slideway, that is, the upper valve body 33 can float up and down relative to the valve seat 31.

[0075] In a specific example, Figure 5 , Figure 7 As shown, the fixing groove 313 is provided on the valve seat 31, and the fixing protrusion 335 is provided on the upper valve body 33. Figure 5 , Figure 7 As shown, the fixing groove 313 is located on the outer wall of the valve seat 31, and the fixing protrusion 335 is located on the inner wall of the upper valve body 33. Of course, the fixing groove 313 can also be set on the upper valve body 33, and the fixing protrusion 335 can be set on the valve seat 31, which is not limited here.

[0076] As a preferred embodiment of the present invention, Figure 3 As shown, the valve core 32 has an anti-overflow portion located in the air inlet cavity 312, the sealing portion 321 is arranged on the anti-overflow portion, and a bubble breaking tip 322 is arranged at the lower end of the anti-overflow portion.

[0077] Preferably, if Figure 3 As shown, the width of the valve cavity 312 is greater than the width of the sealing portion 321, so that there is a transverse gap between the sealing portion 321 and the inner wall of the valve cavity 312, ensuring smooth passage of airflow in the pot, and avoiding large friction resistance between the sealing portion 321 and the inner wall of the valve cavity 312, thereby ensuring smooth movement of the valve core 32.

[0078] The bubble-breaking tip 322 at the lower end of the overflow prevention part is a conical structure, which can play a bubble-breaking role. When the bubbles and liquid bubbles in the pot float upward to the valve cavity 312 with the gas, the bubble-breaking tip 322 exerts a greater pressure on the bubbles and liquid bubbles, which helps to break them evenly, thereby causing the liquid carried in the bubbles and liquid bubbles to flow back into the pot under the action of gravity, and the gas surges up and is discharged, avoiding overflow of the pot during the exhaust process.

[0079] Preferably, if Figure 1 , Figure 2 As shown, the lower end of the sealing portion 321 is higher than the lower surface of the pressure-bearing inner cover 22 to prevent the sealing portion 321 from contacting the liquid in the pot when there is a lot of food in the pot, resulting in contamination of the sealing position. Specifically, the lower surface of the pressure-bearing inner cover 22 can be an uneven structure or a step-shaped structure. However, the pressure-bearing inner cover 22 is provided with an installation area for installing the pressure conversion element 3, so the sealing portion 321 only needs to be higher than the lower surface of the installation area.

[0080] As a preferred embodiment of the present invention, Fig. 9 As shown, the driving assembly 4 includes a driving member 41 and a transmission member 42 . The driving member 41 is used to drive the transmission member 42 to move or rotate, and the transmission member 42 drives the upper valve body 33 to move.

[0081] Specifically, this embodiment does not limit the transmission mechanism between the driving assembly 4 and the pressure conversion member 3. In one embodiment, Fig. 9 As shown, the transmission member 42 can move horizontally and then move toward the direction close to the pressure conversion member 3 or away from the pressure conversion member 3. The upper valve body 33 has a matching portion 331, and the transmission member 42 has a pressing portion 422 located above the matching portion 331. When it moves toward the pressure conversion member 3, the pressing portion 422 gradually forms a downward pressing force on the matching portion 331, thereby driving the upper valve body 33 to move downward.

[0082] Specifically, Fig. 9 As shown, the pressing portion 422 bends and extends upward toward one end of the pressure conversion member 3 to form a pressing curved surface on the lower side. Fig. 9 As shown, the upper valve body is provided with a matching portion 331 , and the matching portion 331 is also provided with a matching inclined surface, so that the contact between the pressing portion 422 and the matching portion 331 is more stable and reliable.

[0083] In another embodiment, the transmission member 42 is rotatably connected to the pot cover 2 to form a lever mechanism, one end of which cooperates with the driving member 41, and the other end cooperates with the pressure conversion member 3. When the driving member 41 drives one end of the transmission member 42 to lift, the other end descends, thereby forming a downward pressing force on the upper valve body 33, causing it to move downward.

[0084] This embodiment does not limit the driving method of the driving member 41. Preferably, Fig. 9 As shown, the driving member 41 is a motor, the output shaft of the motor is provided with a first meshing tooth 411 , and the transmission member 42 is provided with a second meshing tooth 421 matching with the first meshing tooth 411 , so that the transmission member 42 can move toward the pressure conversion member 3 to drive the upper valve body 33 .

[0085] Specifically, Fig. 9 As shown, the first meshing tooth 411 is arranged on the output shaft of the motor, and the second meshing tooth 421 is a rack arranged on the transmission member 42. Through the cooperation of the two, the rotation of the driving member 41 is converted into the horizontal movement of the transmission member 42 to drive the upper valve body 33.

[0086] Of course, in the embodiment in which the transmission member 42 is rotatably connected to the pot cover 2, the second meshing tooth 421 can be set at one end of the transmission member 42, so that the driving member 41 rotates through the first meshing tooth 411 and the second meshing tooth 421 to cooperate with the driving transmission member 42 to rotate, so as to drive the upper valve body 33.

[0087] In other embodiments, the driving member 41 may also drive the transmission member 42 by manual operation. For example, an operating handle may be provided on the pot cover 2, and the driving member 41 may be controlled by pressing and / or rotating by the user.

[0088] Preferably, if Figure 4 As shown, the pressure conversion member 3 further includes an elastic member 36, and the elastic member 36 is used to apply an upward thrust to the upper valve body 33 to cause the upper valve body 33 to float upward and reset.

[0089] When the driving assembly 4 stops pressing the upper valve body 33, the upper valve body 33 rebounds upward under the action of the elastic member 36, so that the sealing portion 321 returns to the pressurized state of abutting and sealing with the valve seat 31. Figure 1 , Figure 4 As shown, the elastic member 36 is disposed between the upper valve body 33 and the valve seat 31 to directly act on the upper valve body 33 , and pushes the upper valve body 33 upward so that the upper valve body 33 and the valve core 32 move upward and reset.

[0090] Specifically, Figure 4 As shown, the elastic member 36 is a spring to save costs. Of course, the elastic member 36 can also be other structures, such as a silicone member, etc., which is not limited here.

[0091] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0092] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0093] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A cooking utensil capable of switching sealing states, comprising a pot body with a cooking cavity and a pot cover, wherein the pot cover comprises a cover body and a pressure-bearing inner cover, characterized in that: The cooking appliance also includes a pressure conversion component and a driving assembly arranged on the pot cover, the pressure conversion component includes a valve seat fixed on the pressure-bearing inner cover, an upper valve body connected to the valve seat for up and down sliding movement, and a valve core; the valve seat is provided with a valve cavity facing the cooking cavity and connected to the cooking cavity; an exhaust channel is provided between the valve seat and the upper valve body; one end of the valve core is connected to the upper valve body, and the other end is provided with a sealing portion located in the valve cavity; the driving assembly drives the upper valve body to move up and down to drive the valve core to move up and down in the valve cavity, so that the sealing portion seals or opens the exhaust channel.

2. The cooking utensil with switchable sealing state according to claim 1, characterized in that: The top wall of the valve seat is provided with an exhaust port connected to the exhaust channel, and a first sealing member is arranged between the upper valve body and the valve seat. When the upper valve body moves downward to its position, the first sealing member abuts and seals against the upper valve body and the valve seat respectively, and the valve cavity is connected with the exhaust channel through the exhaust port.

3. The cooking utensil with switchable sealing state according to claim 1, characterized in that: The cover body is provided with an air outlet, a second sealing member is arranged at the air outlet, the second sealing member has a through port, the upper end of the upper valve body is plugged and fixed to the through port, and the second sealing member is further provided with a pleated layer on the periphery of the through port.

4. The cooking utensil with switchable sealing state according to claim 1, characterized in that: One of the valve seat and the upper valve body is provided with a fixing protrusion, and the other of the two is provided with a fixing groove, the fixing groove has a locking position and an unlocking position arranged at intervals in the circumferential direction, the unlocking position has an opening for the fixing protrusion to enter and exit the fixing groove, and the upper valve body and the valve seat can rotate relative to each other so that the fixing protrusion switches between the locking position and the unlocking position.

5. The cooking utensil with switchable sealing state according to claim 1, characterized in that: The valve core has an anti-overflow portion located in the valve cavity, the sealing portion is arranged on the anti-overflow portion, and a bubble breaking tip is arranged at the lower end of the anti-overflow portion.

6. The cooking utensil with switchable sealing state according to claim 1, characterized in that: The driving assembly includes a driving member and a transmission member, and the driving member is used to drive the transmission member to move or rotate, so that the transmission member drives the upper valve body to move.

7. The cooking utensil with switchable sealing state according to claim 6, characterized in that: The driving member is a motor, the output shaft of the motor is provided with a first meshing tooth, and the transmission member is provided with a second meshing tooth matched with the first meshing tooth, so that the transmission member can move toward the pressure conversion member to drive the upper valve body.

8. The cooking utensil with switchable sealing state according to claim 1, characterized in that: The pressure-bearing inner cover also includes a float valve and an exhaust pipe, and the float valve, the exhaust pipe and the pressure conversion member are arranged in a staggered manner.

9. The cooking utensil with switchable sealing state according to claim 1, characterized in that: The pressure conversion member further comprises an elastic member, and the elastic member is used for applying an upward thrust to the upper valve body to cause the upper valve body to float upward and reset.

10. The cooking utensil with switchable sealing state according to any one of claims 1 to 9, characterized in that: The top wall of the valve seat is provided with an exhaust port connecting the valve cavity and the exhaust channel. The sealing portion abuts against the top wall of the valve seat to seal the exhaust port. When the valve core moves downward, the sealing portion separates from the valve seat to open the exhaust port.

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