Lid assembly and cooking appliance having the same

Abstract

The application provides a cover assembly and a cooking utensil with the same. The cover assembly comprises: an exhaust structure connected with a pressure-bearing cover, the exhaust structure being provided with a connecting hole and an exhaust hole; a first sealing structure comprising a first connecting rod and a first sealing element and a second sealing element arranged on the first connecting rod, the first sealing element being arranged correspondingly to the connecting hole, and the second sealing element being arranged correspondingly to the exhaust hole, the second sealing element blocking the exhaust hole, and the first sealing element blocking the connecting hole; a first reset element applying a reset force to the first connecting rod to keep the second sealing element in a position of blocking the exhaust hole; and a first air pipe connected at the connecting hole, the first air pipe being used for conveying gas flowing to the connecting hole, the first connecting rod being driven to move by the gas pressure to open the exhaust hole. The technical scheme of the application effectively solves the problem that the connecting rod in the related art needs to be positioned by a positioning guide structure, thereby making the structure of the pot cover more complex.

Description

Technical Field

[0001] This invention relates to the field of small household appliance technology, and more specifically, to a cover assembly and a cooking appliance having the same. Background Technology

[0002] Cooking appliances can perform pressurized cooking. During pressurized cooking, pressure is built up inside the pot. After cooking, the pressure is released through the vent pipe and pressure relief valve, allowing the lid to be opened. However, misalignment between the pressure relief valve and the valve orifice can easily occur, leading to a poor seal and affecting pressure regulation within the cooking appliance.

[0003] In related technologies, a valve cavity, a sealing structure, and a solenoid valve are provided on the lid. The valve cavity has an exhaust port, and the sealing structure includes a connecting rod and a sealing element. The connecting rod is movably inserted into the exhaust port, and the sealing element is correspondingly positioned to the exhaust port. When the solenoid valve drives the connecting rod to move, it can separate the sealing element from the exhaust port, thereby achieving exhaust. In order to ensure that the solenoid valve can drive the connecting rod, the solenoid valve needs to be correspondingly positioned to the connecting rod, that is, a separate positioning and guiding structure is required to position the connecting rod, which makes the overall structure of the lid relatively complex. Summary of the Invention

[0004] The main objective of this invention is to provide a lid assembly and a cooking appliance having the same, in order to solve the problem in related technologies where the connecting rod needs to be positioned by a positioning guide structure, which makes the structure of the pot lid more complex.

[0005] To achieve the above objectives, according to one aspect of the present invention, a cover assembly is provided, comprising: a pressure-bearing cover; an exhaust structure connected to the pressure-bearing cover, the exhaust structure having a connecting hole and an exhaust hole; a first sealing structure including a first connecting rod and a first sealing member and a second sealing member disposed on the first connecting rod, the first connecting rod being movably disposed within the connecting hole and the exhaust hole, the first sealing member being disposed corresponding to the connecting hole, the second sealing member being disposed corresponding to the exhaust hole, and when the second sealing member blocks the exhaust hole, the first sealing member blocks the connecting hole; a first reset member applying a reset force to the first connecting rod to hold the second sealing member in the position of blocking the exhaust hole; wherein, a first air pipe is connected to the connecting hole, the first air pipe being used to transport gas flowing to the connecting hole, and the first connecting rod moving under the drive of gas pressure to open the exhaust hole by the second sealing member.

[0006] The present invention utilizes a venting structure connected to a pressure-bearing cover. The venting structure has a connecting hole and a discharge hole. A first sealing structure includes a first connecting rod and a first sealing element and a second sealing element disposed on the first connecting rod. The first connecting rod is movably inserted into the connecting hole and the discharge hole. The first sealing element corresponds to the connecting hole, and the second sealing element corresponds to the discharge hole. When the first sealing element blocks the connecting hole, the second sealing element blocks the discharge hole. A first reset element applies a reset force to the first connecting rod to keep the second sealing element in the position blocking the discharge hole. A first gas pipe is connected to the connecting hole, used to transport gas flowing towards the connecting hole. The first connecting rod moves under the drive of gas pressure to open the discharge hole using the second sealing element. Through the above arrangement, the gas transported by the first gas pipe can blow the first connecting rod, i.e., the gas pushes against the first connecting rod and the first sealing element, thereby causing the first sealing structure to overcome the reset force of the first reset element and move. When the first connecting rod moves, the second sealing element on the first connecting rod can move synchronously, moving away from the discharge hole, thus allowing steam to be discharged through the discharge hole. Because the gas can diffuse, ensuring contact with the first connecting rod and the first sealing element and achieving pushing, it eliminates the need for alignment between the driving structure and the first connecting rod, thus effectively reducing the difficulty of driving. Furthermore, since there is no need for a positioning guide structure to position the first connecting rod, the structural complexity of the lid is effectively reduced. Therefore, the technical solution of this application effectively solves the problem in related technologies where the connecting rod needs to be positioned via a positioning guide structure, resulting in a more complex lid structure.

[0007] Furthermore, the exhaust structure includes an exhaust pipe and a first connecting cylinder. Both a connecting hole and a discharge hole are located on the exhaust pipe. The first connecting cylinder passes through the connecting hole. A portion of the first connecting rod is movably disposed within the first connecting cylinder, and a first reset member is disposed within the first connecting cylinder. The first connecting cylinder can enclose a space, thus preventing gas leakage during inflation and ensuring the driving effect.

[0008] Furthermore, the first connecting cylinder is provided with a first inner protruding edge, the first connecting rod is provided with a first outer protruding edge, and the first reset member is disposed between the first inner protruding edge and the first outer protruding edge. The structure of the first inner protruding edge and the first outer protruding edge is simple and easy to set, and can effectively fix the first reset member, thereby ensuring that the position of the first reset member is more stable.

[0009] Furthermore, the first inner convex edge is located between the first outer convex edge and the centerline of the exhaust pipe, and the first seal is sealed to the first end of the first connecting cylinder. This arrangement ensures that the first seal can effectively block the connecting hole.

[0010] Furthermore, a second inner convex edge is also provided inside the first connecting cylinder. The second inner convex edge is located outside the first connecting rod, and the first outer convex edge is located between the first and second inner convex edges. The provision of the second inner convex edge can reduce the inner diameter of the first connecting cylinder, thereby guiding the gas flow direction and ensuring that the gas can be blown towards the first connecting rod. This also increases the gas flow velocity, making it easier to drive the first connecting rod to move.

[0011] Furthermore, the exhaust structure is also provided with an air inlet, and the cover assembly includes a second sealing structure and a second resetting member. The second sealing structure includes a second connecting rod and a third sealing member. The second connecting rod is movably inserted into the air inlet, and the third sealing member is in a sealing fit with the air inlet. The second resetting member is disposed between the second connecting rod and the exhaust structure to keep the third sealing member in the position of blocking the air inlet. The arrangement of the second sealing structure and the second resetting member allows the third sealing member to remain in the position of blocking the air inlet when inflation is not required, thereby preventing steam from escaping from the air inlet.

[0012] Furthermore, the air inlet is located above the first connecting rod. When inflating, because the air inlet is located above the first connecting rod, the gas can be blown onto the first connecting rod, thereby cleaning food residue from the first connecting rod.

[0013] Furthermore, the exhaust structure also includes a second connecting cylinder, which is correspondingly arranged with the air inlet. A second reset member is disposed inside the second connecting cylinder, and the second connecting cylinder is connected to a second air pipe. The aforementioned second connecting cylinder can enclose a space, thereby making it easier for the gas to drive the second connecting rod to move.

[0014] According to a second aspect of the present invention, a cooking appliance is provided, comprising a pot body, a lid assembly closably disposed on the pot body, and an air pump disposed on the pot body or the lid assembly, the air pump being connected to a first air pipe, and the lid assembly being the aforementioned lid assembly. The aforementioned lid assembly achieves exhaust by moving a first connecting rod driven by gas, meaning the gas does not need to be aligned with the first connecting rod, thereby effectively reducing the structural complexity of the lid assembly. Therefore, the cooking appliance having the aforementioned lid assembly also possesses the aforementioned advantages.

[0015] According to a third aspect of the present invention, a cooking appliance is provided, comprising a pot body, a lid assembly closably disposed on the pot body, and an air pump disposed on the pot body or the lid assembly. The air pump is connected to both a first air pipe and a second air pipe, and the lid assembly is the aforementioned lid assembly. The aforementioned lid assembly achieves exhaust by moving a first connecting rod driven by gas, meaning the gas does not need to be aligned with the first connecting rod, thereby effectively reducing the structural complexity of the lid assembly. Therefore, the cooking appliance having the aforementioned lid assembly also possesses the aforementioned advantages.

[0016] Furthermore, the air pump has a first outlet and a second outlet. When one of the first and second outlets is in the air-discharging state, the other is in the closed state. The first outlet is connected to the connecting hole, and the second outlet is connected to the air inlet. The air pump can inflate the air inlet. After cooking, air is inflated into the air inlet by the air pump. Since the temperature of the air entering the air inlet is low, when the low-temperature air comes into contact with the higher-temperature air inside the pot, it can cool down the pot and reduce the pressure inside the pot. At the same time, the inflation process can break up air bubbles inside the pot, thereby preventing overflow.

[0017] Furthermore, the air pump includes a pump body and a switching valve, with the pump body connected to the switching valve. Both the first outlet and the second outlet are located on the switching valve. The aforementioned switching valve can effectively switch the flow direction, thereby enabling the inflation and deflation functions respectively. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 A top view schematic diagram of an embodiment of the cover assembly according to the present invention is shown;

[0020] Figure 2 It shows Figure 1 A partial cross-sectional view of the cover assembly;

[0021] Figure 3 It shows Figure 2 A magnified view of part A of the cover assembly;

[0022] Figure 4 It shows Figure 2 A partial cross-sectional view of the cover assembly after the air pump is activated and the first connecting rod moves.

[0023] Figure 5 It shows Figure 4 A magnified view of part B of the cover assembly;

[0024] Figure 6 It shows Figure 1 A partial cross-sectional view of the air inlet and the second sealing structure of the cover assembly;

[0025] Figure 7 It shows Figure 6 A magnified view of part C of the cover assembly;

[0026] Figure 8 It shows Figure 6 A partial cross-sectional view of the third seal of the cover assembly avoiding the air intake.

[0027] The above figures include the following reference numerals:

[0028] 10. Liner; 11. Clearance hole; 20. Pressure cover; 30. Exhaust structure; 31. Connecting hole; 32. Discharge hole; 33. Exhaust pipe; 34. First connecting cylinder; 341. First inner flange; 342. Second inner flange; 343. First cylinder section; 344. Second cylinder section; 35. Air inlet; 36. Second connecting cylinder; 361. Third inner flange; 40. First sealing structure; 41. First connecting rod; 411. First outer flange; 42. First seal; 43. Second seal; 51. First reset element; 52. Air pump; 53. First air pipe; 54. Second air pipe; 60. Second sealing structure; 61. Second connecting rod; 611. Second outer flange; 62. Third seal; 71. Second reset element; 72. Safety valve. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0032] like Figure 1 , Figure 2 as well as Figure 4 As shown, in this embodiment, the cover assembly includes: a pressure-bearing cover 20, an exhaust structure 30, a first sealing structure 40, and a first reset member 51. The exhaust structure 30 is connected to the pressure-bearing cover 20 and has a connecting hole 31 and a discharge hole 32. The first sealing structure 40 includes a first connecting rod 41 and a first sealing member 42 and a second sealing member 43 disposed on the first connecting rod 41. The first connecting rod 41 is movably inserted into the connecting hole 31 and the discharge hole 32. The first sealing member 42 is correspondingly disposed with respect to the connecting hole 31, and the second sealing member 43 is correspondingly disposed with respect to the discharge hole 32. When the first sealing member 42 blocks the connecting hole 31, the second sealing member 43 blocks the discharge hole 32. The first reset member 51 applies a reset force to the first connecting rod 41 to keep the second sealing member 43 in the position of blocking the discharge hole 32. The connection hole 31 is connected to a first air pipe 53, which is used to transport gas to the connection hole 31. The first connecting rod 41 moves under the drive of gas pressure to open the discharge hole 32 of the second seal 43.

[0033] Using the technical solution of this embodiment, the exhaust structure 30 is connected to the pressure cover 20. The exhaust structure 30 is provided with a connecting hole 31 and a discharge hole 32. The first sealing structure 40 includes a first connecting rod 41 and a first sealing element 42 and a second sealing element 43 disposed on the first connecting rod 41. The first connecting rod 41 is movably inserted into the connecting hole 31 and the discharge hole 32. The first sealing element 42 is correspondingly disposed to the connecting hole 31, and the second sealing element 43 is correspondingly disposed to the discharge hole 32. When the first sealing element 42 blocks the connecting hole 31, the second sealing element 43 blocks the discharge hole 32. The first reset element 51 applies a reset force to the first connecting rod 41 to keep the second sealing element 43 in the position of blocking the discharge hole 32. A first air pipe 53 is connected to the connecting hole 31. The first air pipe 53 is used to transport gas flowing to the connecting hole 31. The first connecting rod 41 moves under the drive of gas pressure to open the discharge hole 32 with the second sealing element 43. With the above configuration, the gas delivered by the first gas pipe 53 can blow the first connecting rod 41, that is, the gas pushes the first connecting rod 41 and the first sealing member 42, thereby causing the first sealing structure 40 to overcome the reset force of the first reset member 51 and move. When the first connecting rod 41 moves, the second sealing member 43 on the first connecting rod 41 can move synchronously, thereby moving away from the discharge hole 32, so that steam can be discharged through the discharge hole 32. Since the gas can diffuse, that is, the gas can ensure contact with the first connecting rod 41 and the first sealing member 42 and push them, the driving structure does not need to be aligned with the first connecting rod 41 to achieve driving, thereby effectively reducing the difficulty of driving. Furthermore, since there is no need to set a positioning guide structure to position the first connecting rod 41, the structural complexity of the lid can be effectively reduced. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the connecting rod needs to be positioned by a positioning guide structure, which makes the structure of the pot lid more complex.

[0034] Specifically, in this embodiment, the cover assembly further includes a liner 10, which has a clearance hole 11. A pressure-bearing cover 20 is rotatably disposed below the liner 10. A venting structure 30 passes through the clearance hole 11 and is connected to the pressure-bearing cover 20.

[0035] In this embodiment, the first reset member 51 is disposed between the exhaust structure 30 and the first connecting rod 41. That is, the first reset member 51 only needs to be disposed at one end of the first connecting rod 41.

[0036] It should be noted that when the gas is blown toward the first connecting rod and causes the first sealing member 42 to open the connecting hole 31, the gas can come into contact with the high-temperature steam inside the cooking appliance, thereby allowing the high-temperature steam to cool down quickly and thus achieving rapid pressure reduction. At the same time, when the gas is blown into the exhaust structure 30, it can break the air bubbles inside the exhaust structure 30, thereby achieving the function of breaking bubbles.

[0037] like Figures 2 to 5 As shown, in this embodiment, the exhaust structure 30 includes an exhaust pipe 33 and a first connecting cylinder 34. A connecting hole 31 and a discharge hole 32 are both disposed on the exhaust pipe 33. The first connecting cylinder 34 passes through the connecting hole 31. A portion of the first connecting rod 41 is movably disposed within the first connecting cylinder 34. A first reset member 51 is disposed within the first connecting cylinder 34. The first connecting cylinder 34 can enclose a space, thus preventing gas leakage during inflation and ensuring the driving effect.

[0038] like Figures 2 to 5 As shown, in this embodiment, the first connecting cylinder 34 is provided with a first inner protrusion 341, the first connecting rod 41 is provided with a first outer protrusion 411, and the first reset member 51 is disposed between the first inner protrusion 341 and the first outer protrusion 411. The structure of the first inner protrusion 341 and the first outer protrusion 411 is simple and easy to set, and can effectively fix the first reset member 51, thereby ensuring that the position of the first reset member 51 is more stable.

[0039] like Figures 2 to 5 As shown, in this embodiment, the first inner convex edge 341 is located between the first outer convex edge 411 and the center line of the exhaust pipe 33, and the first sealing member 42 is sealed to the first end of the first connecting cylinder 34. The above arrangement ensures that the first sealing member 42 can effectively block the connecting hole 31.

[0040] like Figures 2 to 5 As shown, in this embodiment, a second inner protruding edge 342 is also provided inside the first connecting cylinder 34. The second inner protruding edge 342 is located outside the first connecting rod 41, and the first outer protruding edge 411 is located between the first inner protruding edge 341 and the second inner protruding edge 342. The provision of the second inner protruding edge 342 can reduce the inner diameter of the first connecting cylinder 34, thereby guiding the gas flow direction and ensuring that the gas can be blown towards the first connecting rod 41. Furthermore, this can increase the gas flow velocity, making it easier to drive the first connecting rod 41 to move.

[0041] like Figures 2 to 5 As shown, in this embodiment, the first connecting cylinder 34 includes a first cylindrical section 343 and a second cylindrical section 344. The diameter of the first cylindrical section 343 is larger than the diameter of the second cylindrical section 344. The first cylindrical section 343 passes through the connecting hole 31, and the second cylindrical section 344 is connected to the air pump 52. The larger diameter of the first cylindrical section 343 makes it difficult for food residue to enter the second cylindrical section 344. Furthermore, the air blowing can blow any food residue that has entered the first cylindrical section 343 back into the pot, thereby enabling the cleaning of the first connecting cylinder 34.

[0042] like Figures 6 to 8As shown, in this embodiment, the exhaust structure 30 is further provided with an air inlet 35. The cover assembly also includes a second sealing structure 60 and a second resetting member 71. The second sealing structure 60 includes a second connecting rod 61 and a third sealing member 62. The second connecting rod 61 is movably inserted into the air inlet 35, and the third sealing member 62 is sealed to the air inlet 35. The second resetting member 71 is disposed between the second connecting rod 61 and the exhaust structure 30 to keep the third sealing member 62 in the position of blocking the air inlet 35. The arrangement of the second sealing structure 60 and the second resetting member 71 allows the third sealing member 62 to remain in the position of blocking the air inlet 35 when inflation is not required, thereby preventing steam from escaping from the air inlet 35.

[0043] Specifically, the first sealing structure 40 and the second sealing structure 60, when combined, have an initial state, an inflated state, and an vented state. When the first sealing structure 40 and the second sealing structure 60 are in the initial state, both are in a sealed state. When the first sealing structure 40 and the second sealing structure 60 are in an inflated state, the second sealing structure 60 is in an open state, and the first sealing structure 40 is in a sealed state. When the first sealing structure 40 and the second sealing structure 60 are in a vented state, both are in an open state.

[0044] like Figures 6 to 8 As shown, in this embodiment, the air inlet 35 is located above the first connecting rod 41. When inflating, because the air inlet 35 is located above the first connecting rod 41, gas can be blown onto the first connecting rod 41, thereby cleaning food residue from the first connecting rod 41.

[0045] like Figures 6 to 8 As shown, in this embodiment, the exhaust structure 30 further includes a second connecting cylinder 36, which is correspondingly arranged with the air inlet 35. A second reset member 71 is disposed inside the second connecting cylinder 36, and the second connecting cylinder 36 is connected to a second air pipe 54. The aforementioned second connecting cylinder 36 can enclose a space, making it easier for the air pump 52 to drive the second connecting rod 61 to move. At the same time, the second air pipe 54 can inflate the second connecting cylinder 36, thereby allowing the second sealing structure 60 to move and opening the air inlet 35.

[0046] like Figures 6 to 8 As shown, in this embodiment, a third inner protrusion 361 is provided inside the second connecting cylinder 36, a second outer protrusion 611 is provided on the second connecting rod 61, and the second reset member 71 is disposed between the third inner protrusion 361 and the second outer protrusion 611. The aforementioned third inner protrusion 361 and second outer protrusion 611 can effectively fix the second reset member 71.

[0047] like Figures 1 to 8 As shown, in this embodiment, the cover assembly also includes a safety valve 72, which is disposed on the exhaust pipe 33. The safety valve 72 is provided to protect the safety of the cooking appliance when the exhaust hole 32 is blocked and unable to exhaust air.

[0048] According to another aspect of this application, a cooking appliance is provided. The cooking appliance of this embodiment includes a lid assembly, which is the lid assembly described above. The lid assembly is used to drive a first connecting rod 41 to move via an air pump 52, thereby achieving air release. The air pump 52 does not need to be aligned with the first connecting rod 41, thus effectively reducing the structural complexity of the lid assembly. Therefore, the cooking appliance with the lid assembly described above also has the aforementioned advantages.

[0049] According to a second aspect of this application, a cooking appliance is provided, comprising a pot body, a lid assembly closable on the pot body, and an air pump 52 disposed on the pot body or the lid assembly. The air pump 52 is connected to a first air pipe 53, and the lid assembly is the aforementioned lid assembly. The aforementioned lid assembly achieves exhaust by moving a first connecting rod 41 driven by gas, meaning the gas does not need to be aligned with the first connecting rod 41, thereby effectively reducing the structural complexity of the lid assembly. Therefore, the cooking appliance having the aforementioned lid assembly also possesses the aforementioned advantages.

[0050] Specifically, in this embodiment, the air pump 52 is disposed on the cover assembly.

[0051] According to a third aspect of this application, a cooking appliance is provided, comprising a pot body, a lid assembly closable on the pot body, and an air pump 52 disposed on the pot body or the lid assembly. The air pump 52 is connected to both a first air pipe 53 and a second air pipe 54, and the lid assembly is the aforementioned lid assembly. The aforementioned lid assembly achieves exhaust by moving a first connecting rod 41 driven by gas, meaning the gas does not need to be aligned with the first connecting rod 41, thereby effectively reducing the structural complexity of the lid assembly. Therefore, the cooking appliance having the aforementioned lid assembly also possesses the aforementioned advantages.

[0052] like Figure 1 , Figure 6 as well as Figure 8As shown, in this embodiment, the air pump 52 has a first outlet and a second outlet. When one of the first and second outlets is in an air-discharging state, the other is in a closed state. The first outlet is connected to the connecting hole 31, and the second outlet is connected to the air inlet 35. The air pump 52 can inflate the air inlet 35. After cooking, the air pump 52 inflates the air inlet 35. Since the temperature of the gas inflated into the air inlet 35 is low, when the low-temperature gas comes into contact with the high-temperature gas inside the pot, it can cool down the pot and reduce the pressure inside the pot. At the same time, the inflation process can break up the air bubbles inside the pot, thereby preventing overflow.

[0053] like Figure 1 As shown, in this embodiment, the air pump 52 includes a pump body and a switching valve. The pump body is connected to the switching valve, and both the first outlet and the second outlet are located on the switching valve. The aforementioned switching valve can effectively switch the flow direction, thereby enabling the inflation and deflation functions respectively.

[0054] like Figure 1 As shown, in this embodiment, the distance between the centerline of the air pump 52 and the cover 10 is greater than the distance between the edge of the air pump 52 and the cover 10. This arrangement prevents the air pump 52 from occupying the center of the cover 10, thus making the overall structural layout of the cover assembly more reasonable and preventing the cover assembly from being too thick.

[0055] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0056] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0057] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cover assembly, characterized in that, include: Pressure cap (20); An exhaust structure (30) is connected to the pressure cover (20), and the exhaust structure (30) is provided with a connection hole (31) and an exhaust hole (32); The first sealing structure (40) includes a first connecting rod (41) and a first sealing element (42) and a second sealing element (43) disposed on the first connecting rod (41). The first connecting rod (41) is movably inserted into the connecting hole (31) and the discharge hole (32). The first sealing element (42) is disposed corresponding to the connecting hole (31), and the second sealing element (43) is disposed corresponding to the discharge hole (32). When the first sealing element (42) blocks the connecting hole (31), the second sealing element (43) blocks the discharge hole (32). The first reset member (51) applies a reset force to the first connecting rod (41) to keep the second seal (43) in the position of blocking the discharge hole (32); The connection hole (31) is connected to a first air pipe (53), which is used to transport gas to the connection hole (31). The first connecting rod (41) moves under the drive of gas pressure so that the second seal (43) opens the discharge hole (32).

2. The cover assembly according to claim 1, characterized in that, The exhaust structure (30) includes an exhaust pipe (33) and a first connecting cylinder (34). The connecting hole (31) and the discharge hole (32) are both provided on the exhaust pipe (33). The first connecting cylinder (34) passes through the connecting hole (31). A portion of the structure of the first connecting rod (41) is movably provided in the first connecting cylinder (34). The first reset member (51) is provided in the first connecting cylinder (34).

3. The cover assembly according to claim 2, characterized in that, The first connecting cylinder (34) is provided with a first inner protrusion (341), the first connecting rod (41) is provided with a first outer protrusion (411), and the first reset member (51) is disposed between the first inner protrusion (341) and the first outer protrusion (411).

4. The cover assembly according to claim 3, characterized in that, The first inner convex edge (341) is located between the first outer convex edge (411) and the center line of the exhaust pipe (33), and the first seal (42) is sealed to the first end of the first connecting cylinder (34).

5. The cover assembly according to claim 3, characterized in that, The first connecting cylinder (34) is also provided with a second inner protrusion (342), which is located outside the first connecting rod (41), and the first outer protrusion (411) is located between the first inner protrusion (341) and the second inner protrusion (342).

6. The cover assembly according to claim 1, characterized in that, The exhaust structure (30) is also provided with an air inlet (35). The cover assembly also includes a second sealing structure (60) and a second reset member (71). The second sealing structure (60) includes a second connecting rod (61) and a third sealing member (62). The second connecting rod (61) is movably inserted into the air inlet (35). The third sealing member (62) is sealed to the air inlet (35). The second reset member (71) is disposed between the second connecting rod (61) and the exhaust structure (30) so that the third sealing member (62) is held in the position of blocking the air inlet (35).

7. The cover assembly according to claim 6, characterized in that, The air inlet (35) is located above the first connecting rod (41).

8. The cover assembly according to claim 6, characterized in that, The exhaust structure (30) further includes a second connecting cylinder (36), which is correspondingly arranged with the air inlet (35). The second reset member (71) is arranged inside the second connecting cylinder (36), and the second connecting cylinder (36) is connected to a second air pipe (54).

9. A cooking utensil, characterized in that, The cooking appliance includes a pot body, a lid assembly that is openable and closable on the pot body, and an air pump (52) disposed on the pot body or the lid assembly, the air pump (52) being connected to a first air pipe (53), and the lid assembly being the lid assembly according to any one of claims 1 to 8.

10. A cooking utensil, characterized in that, The cooking appliance includes a pot body, a lid assembly that is openable and closable on the pot body, and an air pump (52) disposed on the pot body or the lid assembly. The air pump (52) is connected to both a first air pipe (53) and a second air pipe (54). The lid assembly is the lid assembly as described in claim 8.

11. The cooking utensil according to claim 10, characterized in that, The air pump (52) has a first outlet and a second outlet. When one of the first outlet and the second outlet is in the air-out state, the other of the first outlet and the second outlet is in the closed state. The first outlet is connected to the connecting hole (31), and the second outlet is connected to the air inlet (35).

12. The cooking utensil according to claim 11, characterized in that, The air pump (52) includes a pump body and a switching valve. The pump body is connected to the switching valve, and the first outlet and the second outlet are both located on the switching valve.

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