Pot cover assembly for cooking utensil
By adopting a main body and sealing lip design in the pot lid assembly, combined with the sealing skirt and ring rib abutment seal, the problem of easy deformation of the sealing structure during assembly is solved, achieving better sealing effect and stability.
Patent Information
- Application Number
- CN202423002409.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The sealing structure of existing pot lid assemblies is prone to deformation during assembly due to defects in the lid itself and the design of the sealing structure, resulting in poor sealing performance or failure.
The sealing element design includes a main body and a first sealing lip. The main body is fitted outside the mating part, and the first sealing lip is bent relative to the mating part to increase the sealing area and tensile force. Combined with the sealing skirt and the ring rib, it provides multiple sealing barriers.
It improves the sealing effect of the pot lid assembly, reduces the probability of steam leakage, and enhances the assembly stability and durability of the seals.
Smart Images
Figure CN223614620U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of kitchen utensil technology, specifically relating to a pot lid assembly for cooking utensils. Background Technology
[0002] Existing cooking appliances, such as rice cookers, pressure cookers, and slow cookers, require their lid assemblies to have venting channels to release the steam generated during cooking. The lower part of the venting channel is usually located on the liner of the lid assembly, while the upper part may extend to the top cover or connect with vents on structural components such as the glass support or decorative parts of the top cover. In either case, the venting channel is generally formed by the cooperation of channels from at least two structural components. A sealing structure is required between the two adjacent structural components to prevent steam from leaking out from the joint between the two structural components, which could affect the lifespan of the electronic components inside the lid assembly.
[0003] To reduce the probability of air leakage, the existing sealing structure between two adjacent structural components is generally designed as a two-stage sealing structure. The first-stage sealing part is an interference fit between the planes at both ends of the sealing structure and the planes of the two structural components to be sealed in the vertical direction. The second-stage sealing part is a horizontal cantilever extending outward from the first-stage sealing part, which abuts against a ring rib extending in the vertical direction on one of the structural components in the vertical direction to seal, so that when the first-stage sealing part fails, the second-stage sealing part can still play a sealing role.
[0004] However, in actual manufacturing, taking the liner as an example, the liner is made of injection-molded plastic. Due to processing and cooling processes, some areas of the liner collapse after molding due to shrinkage. This collapse creates a gap between the liner and its mating structural components, ultimately resulting in a lower-than-expected interference fit in the primary sealing section, failing to achieve the desired sealing effect. While increasing the size of the primary sealing section can compensate for the insufficient interference fit caused by the liner collapse, this improvement also introduces another problem: a larger interference fit in the primary sealing section can easily extend beyond the vent end of the liner. During the assembly of the lid assembly, a larger primary sealing section can easily be hooked by the structural components that form the vent channel with the liner, becoming trapped between the liner and its adjacent structural components, leading to leakage. Furthermore, the primary sealing section relies entirely on compression deformation; the contact surface between the primary sealing section and the plastic component may wrinkle during compression, affecting the sealing effect. In addition, the primary sealing part abuts against the two adjacent structural components for sealing. After the horizontal cantilever of the secondary sealing part is interference-fitted with the ring reinforcement, it is easy to pull the main body of the primary sealing part to bend it, causing the contact plane of the primary sealing part to bend, thus leading to sealing failure. Utility Model Content
[0005] This application provides a pot lid assembly for cooking utensils to solve the technical problem that the sealing structure of existing pot lid assemblies is prone to being stretched and deformed during assembly due to defects in the lid itself and the design of the sealing structure itself, resulting in poor sealing effect or even sealing failure.
[0006] The technical solution adopted in this application is as follows:
[0007] A pot lid assembly for a cooking appliance includes a first lid body and a second lid body. The first lid body has a steam inlet channel, and the second lid body has a steam outlet channel. One of the first lid body and the second lid body has a mating portion that extends toward the other and abuts against it to connect the steam inlet channel and the steam outlet channel. The pot lid assembly also includes a sealing member, which includes a connected main body and a first sealing lip. The main body is fitted outside the mating portion and abuts against the mating portion to seal it. The first sealing lip abuts against the first lid body or the second lid body to seal it, and the first sealing lip is bent relative to the main body in a direction away from the mating portion.
[0008] In this application, the setting of the docking part, on the one hand, realizes the reliable docking of the steam inlet channel and the steam outlet channel, which facilitates the stable output of steam and prevents leakage problems caused by poor docking. On the other hand, the setting of the docking part allows the steam inlet channel or the steam outlet channel to be extended, which not only increases the flow path of steam, but also helps to improve the bubble breaking and overflow prevention effect. The existence of the docking part also provides more possibilities for the sealing position of the sealing element. The sealing element includes a main body, which is sleeved on the outside of the docking part and abuts against the docking part for sealing. This design not only realizes the installation and positioning of the sealing element and blocks the path of steam leakage from the docking position of the steam inlet channel and the steam outlet channel along the extension direction of the docking part, but also improves the adhesion performance of the sealing element on the docking part through the abutting seal between the main body and the outer part. This allows the main body to exert a pulling effect on the first sealing lip, reducing the probability of excessive deformation of the first sealing lip under the pulling of the first cover or the second cover during the assembly process, and ensuring the sealing effect of the first sealing lip at the docking position of the steam inlet channel and the steam outlet channel. The first sealing lip bends away from the mating part relative to the main body. During assembly, under the action of the first or second cover, the first sealing lip tends to flatten outwards to increase the sealing area, thereby improving the sealing effect at the mating point of the steam inlet and exhaust channels. Furthermore, the deformation of the first sealing lip also exerts a pulling effect on the main body. The outward expansion of the first sealing lip generates an outward pulling force on the main body, causing the part of the main body that was originally in contact with the mating part to deform further towards the mating part, resulting in a better seal between the main body and the mating part. In addition, the outward expansion tendency of the first sealing lip under the action of the first or second cover prevents it from being hooked by the first or second cover and pulled between them during assembly, thus ensuring that the sealing performance of the first sealing lip is not affected.
[0009] The sealing element also includes a sealing skirt connected to the main body. The first cover or the second cover without the mating part is provided with a ring rib extending in the vertical direction, and the sealing skirt abuts against the ring rib for sealing.
[0010] In this technical solution, the abutment sealing design between the sealing skirt and the ring rib provides another sealing barrier besides the main body and the first sealing lip. This allows the sealing performance of the first sealing lip to be compensated for even if it fails, further reducing the probability of steam leakage. Furthermore, the ring rib extends vertically. During assembly, when the ring rib abuts against the sealing skirt in the vertical direction, it causes the sealing skirt to deform upwards or downwards relative to its initial state before being subjected to force. This deformation pulls on the first sealing lip through the main body connected to the sealing skirt. This pull further causes the first sealing lip to deform further away from the mating part, causing it to expand outwards and increasing the sealing area between the first sealing lip and the first or second cover, thus further improving the sealing effect.
[0011] The interference fit between the sealing skirt and the ring rib is greater than the interference fit between the first sealing lip and the first cover or the second cover.
[0012] In this technical solution, the interference fit between the sealing skirt and the ring rib is relatively large. This allows the sealing skirt to contact the ring rib first during assembly and deform under the contact of the ring rib. The deformation of the sealing skirt causes the first sealing lip to bend further away from the mating part. Therefore, even if the size of the first sealing lip is increased to solve the problem that the interference fit is less than expected due to the collapse of the first cover and / or the second cover due to processing and manufacturing reasons, the first sealing lip will not be hooked by the first cover or the second cover during assembly and will not be pulled between the first cover and the second cover. This ensures the sealing position and sealing effect of the first sealing lip after the first cover and the second cover are assembled.
[0013] The sealing skirt extends horizontally.
[0014] In this technical solution, the sealing skirt extends horizontally, which can increase the contact area between the sealing skirt and the ring rib, and improve the sealing effect between the sealing skirt and the ring rib.
[0015] The sealing skirt has a fixed end connected to the main body and an abutting end that abuts against the ring rib. The sealing skirt extends obliquely from the fixed end to the abutting end so that the included angle between the sealing skirt and the ring rib and the included angle between the sealing skirt and the main body are both acute angles.
[0016] In this technical solution, the sealing skirt extends at an angle so that the angle between the sealing skirt and the ring rib, as well as the angle between the sealing skirt and the main body, are both acute angles. This makes it easier for the sealing skirt to fold and deform when it comes into contact with the ring rib. Furthermore, the acute angle design makes it less likely for the sealing skirt to pull on the main body when it deforms, reducing the probability that the deformation of the main body will affect the sealing performance of the first sealing lip.
[0017] The first sealing lip includes an abutting portion that seals with the first cover or the second cover, and a connecting portion that connects the abutting portion and the main body portion. The surface of the connecting portion facing the mating portion is an arc surface.
[0018] In this technical solution, the surface of the connecting portion of the first sealing lip facing the mating portion is curved. This means that the first sealing lip itself already has a certain degree of bending deformation and tension at the connecting portion after manufacturing. Therefore, when it comes into contact with the first or second cover and deforms, the part of the first sealing lip that comes into contact with the first or second cover is less likely to wrinkle due to compression, thus ensuring the sealing effect of the first sealing lip. Furthermore, the curved surface design of the connecting portion means that even if the first sealing lip deforms further in the assembled state, the pulling effect of the connecting portion makes it difficult to bend the first sealing lip to the position where it contacts the ring rib, avoiding the risk of air leakage.
[0019] The wall thickness of the first sealing lip is less than the wall thickness of the main body.
[0020] In this technical solution, the wall thickness of the first sealing lip is less than the wall thickness of the main body. This makes it less likely to pull the main body when the first sealing lip deforms during assembly, reducing the probability that the deformation of the main body will affect the sealing performance between the main body and the mating part. This also reduces the problem of the sealing performance of the first sealing lip being affected by the deformation of the main body.
[0021] The seal also includes a second sealing lip connected to the main body. The first sealing lip and the second sealing lip are located on two opposite sides of the main body. One of the first sealing lip and the second sealing lip abuts and seals against the first cover, and the other abuts and seals against the second cover.
[0022] In this technical solution, the second sealing lip provides another sealing barrier in addition to the main body and the first sealing lip, thereby achieving multiple sealing protections. Even if the seal between the main body and the mating part fails, the sealing performance can still be ensured by the two seals of the first and second sealing lips, effectively preventing steam leakage and enhancing the sealing effect.
[0023] The seal also includes a bent portion connecting the main body and the second sealing lip, the bent portion extending toward a side away from the mating portion to form an elastic space between the bent portion and the mating portion.
[0024] In this technical solution, the bending portion allows the first sealing lip to deform under the action of the first or second cover and transmit force to the main body during assembly. On the one hand, the existence of elastic space provides the main body with space for pressure-feed deformation, preventing excessive deformation of the first sealing lip and thus sealing failure. On the other hand, the bending portion can also hinder the deformation of the main body. The rebound force generated by the bending portion can be applied to the first sealing lip through the main body, so that the first sealing lip is tightly fitted and fixed to the first or second cover, thereby further improving the sealing performance of the first sealing lip.
[0025] The second sealing lip is bent toward the mating portion relative to the main body.
[0026] In this technical solution, the second sealing lip is bent towards the mating part relative to the main body, which can reduce the contact area between the second sealing lip and the mating part. This reduces the assembly resistance of the seal and improves the assembly efficiency of the seal when the seal is placed on the mating part. Attached Figure Description
[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0028] Figure 1 This is a cross-sectional view of a pot lid assembly according to one embodiment of Embodiment 1 of this application;
[0029] Figure 2 for Figure 1 Enlarged view of part A;
[0030] Figure 3 This is a cross-sectional view of the pot lid assembly according to one embodiment of Embodiment 2 of this application;
[0031] Figure 4 for Figure 3 Enlarged view of part B;
[0032] Figure 5 This is a cross-sectional view of the pot lid assembly according to one embodiment of Embodiment 3 of this application;
[0033] Figure 6 for Figure 5 Enlarged view of part C.
[0034] in,
[0035] 1. First cover; 11. Connecting part; 12. Steam inlet passage;
[0036] 2. Second cover; 21. Ring reinforcement; 22. Exhaust passage;
[0037] 3. Sealing element; 31. Main body; 32. First sealing lip; 321. Abutting part; 322. Connecting part; 33. Sealing skirt; 34. Second sealing lip; 35. Bending part;
[0038] 4. Flexible space. Detailed Implementation
[0039] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.
[0040] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.
[0041] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0043] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.
[0044] Example 1:
[0045] like Figure 1 and Figure 2 As shown, a pot lid assembly for a cooking utensil includes a first lid body 1 and a second lid body 2. The first lid body 1 is provided with a steam inlet channel 12, and the second lid body 2 is provided with a steam outlet channel 22. The first lid body 1 is provided with a docking portion 11 that extends toward the second lid body 2 and abuts against it to connect the steam inlet channel 12 and the steam outlet channel 22. The pot lid assembly also includes a sealing member 3, which includes a connected main body portion 31 and a first sealing lip 32. The main body portion 31 is fitted outside the docking portion 11 and abuts against the docking portion 11 to seal it. The first sealing lip 32 abuts against the second lid body 2 to seal it, and the first sealing lip 32 is bent relative to the main body portion 31 in a direction away from the docking portion 11.
[0046] Of course, this embodiment 1 is not limited to providing a docking part 11 on the first cover 1. It can also be the other way around, providing a docking part 11 on the second cover 2 that extends toward the first cover 1 and abuts against it to connect the steam inlet channel and the steam outlet channel. The first sealing lip 32 abuts against and seals with the first cover 1.
[0047] In this application: the connection part 11 achieves reliable connection between the steam inlet channel 12 and the steam outlet channel 22, facilitating stable steam output and preventing leakage due to poor connection. Furthermore, the connection part 11 extends either the steam inlet channel 12 or the steam outlet channel 22, increasing the steam flow path and improving the bubble breaking and overflow prevention effect. The presence of the connection part 11 also provides more possibilities for the sealing position of the sealing element 3. The sealing element 3 includes a main body 31, which is fitted onto the outside of the connection part 11 and abuts against it for sealing. This design... This design not only achieves the installation and positioning of the seal 3 and blocks the path of steam leakage along the extension direction of the mating part 11 after leakage from the docking position of the steam inlet and exhaust channels, but also improves the adhesion performance of the seal 3 on the mating part 11 through the abutment seal between the main body 31 and the outer part. This allows the main body 31 to exert a pulling effect on the first sealing lip 32, reducing the probability of excessive deformation of the first sealing lip 32 under the pulling of the second cover 2 during assembly, and ensuring the sealing effect of the first sealing lip 32 at the docking position of the steam inlet channel 12 and the exhaust channel 22. The first sealing lip 32 bends away from the docking part 11 relative to the main body 31, so that during assembly, the first sealing lip 32 tends to flatten outward under the action of the second cover 2 to increase the sealing area, thereby improving the sealing effect of the first sealing lip 32 at the docking position of the steam inlet channel 12 and the exhaust channel 22. Furthermore, the deformation of the first sealing lip 32 will also have a pulling effect on the main body 31. The outward expansion deformation of the first sealing lip 32 will generate an outward pulling force on the main body 31. This pulling force will cause the part of the main body 31 that was originally in contact with the mating part 11 to deform further towards the mating part 11, thereby improving the sealing effect between the main body 31 and the mating part 11. In addition, the first sealing lip 32 has an outward expansion tendency under the action of the first cover 1 or the second cover 2. This tendency ensures that during the assembly process, the first sealing lip 32 will not be hooked by the first cover 1 or the second cover 2 and pulled between the first cover 1 and the second cover 2, thereby ensuring that the sealing performance of the first sealing lip 32 is not affected.
[0048] It should be noted that in this embodiment 1, the specific parts of the pot lid assembly referred to by the first cover 1 and the second cover 2 are not limited. In one embodiment, the first cover 1 refers to the liner and the second cover 2 refers to the top cover. In another embodiment, the first cover 1 refers to the liner and the second cover 2 refers to the top cover decorative piece. In yet another embodiment, the first cover 1 refers to the liner and the second cover 2 refers to the glass support.
[0049] As a preferred embodiment of this application, such as Figure 2As shown, the sealing element 3 also includes a sealing skirt 33 connected to the main body 31. The first cover 1 has a mating portion 11, and the second cover 2 has annular ribs 21 extending in the vertical direction. The sealing skirt 33 abuts against the annular ribs 21 for sealing. The annular ribs 21 are located on the outer periphery of the exhaust passage 22 and are spaced apart from the outer periphery of the exhaust passage 22 by a certain distance. In this embodiment, the abutting sealing design of the sealing skirt 33 and the annular ribs 21 provides another sealing barrier in addition to the main body 31 and the first sealing lip 32. This allows the sealing performance of the first sealing lip 32 to be compensated for by the abutting sealing of the sealing skirt 33 and the annular ribs 21, further reducing the probability of steam leakage. Furthermore, the ring rib 21 extends in the vertical direction. During the assembly process, when the ring rib 21 abuts against the sealing skirt 33 in the vertical direction, it will cause the sealing skirt 33 to deform upward or downward relative to its initial state before being subjected to force. This deformation will pull the first sealing lip 32 through the main body 31 connected to the sealing skirt 33. This pull will further cause the first sealing lip 32 to deform further away from the docking part 11, so that the first sealing lip 32 will expand further outward, thereby increasing the sealing area between the first sealing lip 32 and the second cover 2, and further improving the sealing effect.
[0050] Preferably, the interference fit between the sealing skirt 33 and the ring rib 21 is greater than the interference fit between the first sealing lip 32 and the second cover 2. The larger interference fit between the sealing skirt 33 and the ring rib 21 ensures that during assembly, the sealing skirt 33 will first contact the ring rib 21 and deform under its contact. This deformation causes the first sealing lip 32 to bend further away from the mating portion 11. Therefore, even if the size of the first sealing lip 32 is increased to address the issue of insufficient interference fit due to collapse of the first cover 1 and / or the second cover 2 caused by manufacturing defects, the first sealing lip 32 will not be hooked by the second cover 2 and pulled between the first cover 1 and the second cover 2 during assembly. This ensures the sealing position and sealing effect of the first sealing lip 32 after the first cover 1 and the second cover 2 are assembled.
[0051] As a preferred embodiment of this implementation, such as Figure 2 As shown, the sealing skirt 33 extends horizontally. This design increases the contact area between the sealing skirt 33 and the ring rib 21, improving the sealing effect between them.
[0052] The first sealing lip 32 includes an abutment portion 321 that seals with the first cover 1 or the second cover 2, and a connecting portion 322 that connects the abutment portion 321 and the main body portion 31. As a preferred embodiment of this example 1, ... Figure 2As shown, the surface of the connecting portion 322 facing the mating portion 11 is curved. In this technical solution, the curved surface of the connecting portion 322 of the first sealing lip 32 facing the mating portion 11 ensures that the first sealing lip 32 already has a certain degree of bending deformation and tension at the connecting portion 322 after manufacturing. This prevents the first sealing lip 32 from wrinkling due to compression when it comes into contact with the second cover 2 and deforms, thus ensuring the sealing effect of the first sealing lip 32. Furthermore, the curved design of the connecting portion 322 makes it difficult to bend the first sealing lip 32 to contact the ring rib 21 even if it deforms further after assembly, due to the pulling effect of the connecting portion 322. This avoids the risk of air leakage.
[0053] In this embodiment 1, the wall thickness of the first sealing lip 32 is not limited:
[0054] In one embodiment, the wall thickness of the abutment portion is greater than that of the connecting portion, and the wall thickness of the connecting portion is less than that of the main body portion. The wall thicknesses of the abutment portion and the main body portion may be equal or unequal. The smaller wall thickness of the connecting portion makes it less likely to pull on the main body portion when the abutment portion deforms under stress, thereby reducing the problem of large overall deformation of the seal affecting the sealing performance.
[0055] In another embodiment, such as Figure 2 As shown, the wall thickness of the first sealing lip 32 is less than the wall thickness of the main body 31. That is, the wall thickness of both the abutment portion 321 and the connecting portion 322 is less than the wall thickness of the main body 31. This arrangement makes it less likely that the main body 31 will be pulled when the first sealing lip 32 deforms during assembly, reducing the probability that deformation of the main body 31 will affect the sealing performance between the main body 31 and the mating portion 11, thereby also reducing the problem of the sealing performance of the first sealing lip 32 being affected by deformation of the main body 31.
[0056] As a preferred embodiment of this application, such as Figure 2 As shown, the sealing element 3 also includes a second sealing lip 34 connected to the main body 31. The first sealing lip 32 and the second sealing lip 34 are located on opposite sides of the main body 31. The first sealing lip 32 abuts against the second cover 2 for sealing, and the second sealing lip 34 abuts against the first cover 1 for sealing. The second sealing lip 34 provides another sealing barrier in addition to the main body 31 and the first sealing lip 32, thereby achieving multiple sealing guarantees. Even if the seal between the main body 31 and the mating part 11 fails, the sealing performance can still be ensured by the two seals of the first sealing lip 32 and the second sealing lip 34, effectively preventing steam leakage and enhancing the sealing effect.
[0057] As a preferred embodiment of this implementation, such as Figure 2 As shown, the seal 3 also includes a bent portion 35 connecting the main body 31 and the second sealing lip 34. The bent portion 35 extends toward the side away from the mating portion 11 to form an elastic space 4 between the bent portion 35 and the mating portion 11. The bent portion 35 is provided so that during the assembly process, when the first sealing lip 32 deforms under the action of the second cover 2 and transmits the force to the main body 31, on the one hand, the existence of the elastic space 4 allows the main body 31 to have space for pressure-feed deformation, avoiding excessive deformation of the first sealing lip and resulting in sealing failure. On the other hand, the bent portion 35 can also provide a certain degree of resistance to the deformation of the main body 31. The rebound force generated by the bent portion 35 can be applied to the first sealing lip 32 through the main body 31, so that the first sealing lip 32 is tightly fitted and fixed to the second cover 2, thereby further improving the sealing performance of the first sealing lip 32.
[0058] Furthermore, such as Figure 2 As shown, the included angle of the bending portion 35 is an acute angle, so as to further enhance the resistance of the bending portion 35 to the deformation of the main body portion 31 and enhance the abutting effect of the bending portion 35 on the first sealing lip.
[0059] As a preferred embodiment of this implementation, such as Figure 2 As shown, the second sealing lip 34 is bent toward the mating portion 11 relative to the main body 31. This arrangement reduces the contact area between the second sealing lip 34 and the mating portion 11, thereby reducing the assembly resistance of the seal 3 and improving the assembly efficiency of the seal 3 when it is fitted onto the mating portion 11.
[0060] Furthermore, as shown in the figure, one end of the second sealing lip 34 is connected to the bent portion 35, and the other end extends toward the mating portion 11 and abuts against the first cover 1 for sealing. The wall thickness of the second sealing lip 34 is greater than the wall thickness of the bent portion 35. The end of the second sealing lip 34 that is not connected to the bent portion 35 forms an enlarged portion to increase the contact area between the second sealing lip 34 and the first cover 1 and improve the sealing performance of the second sealing lip 34.
[0061] Example 2:
[0062] This embodiment 2 is basically the same as embodiment 1 in structure and principle, the difference being:
[0063] like Figure 3 and Figure 4As shown, the sealing skirt 33 has a fixed end connected to the main body 31 and an abutting end that abuts against the annular rib 21. The sealing skirt 33 extends obliquely from the fixed end to the abutting end, so that the angles between the sealing skirt 33 and the annular rib 21 and between the sealing skirt 33 and the main body 31 are both acute angles. The oblique extension of the sealing skirt 33, ensuring that both the angles between the sealing skirt 33 and the annular rib 21 and between the sealing skirt 33 and the main body 31 are acute angles, makes it easier for the sealing skirt 33 to fold and deform when it abuts against the annular rib 21. Furthermore, the acute angles prevent the sealing skirt 33 from pulling on the main body 31 during deformation, reducing the probability that deformation of the main body 31 will affect the sealing performance of the first sealing lip 32.
[0064] Furthermore, the thickness of the fixed end of the sealing skirt 33 is less than the thickness of the abutting end. On the one hand, this makes it easier for the sealing skirt 33 to fold when it is abutted by the ring rib 21. On the other hand, it further reduces the pulling force on the main body 31 when the sealing skirt 33 deforms.
[0065] like Figure 4 As shown, in a specific example of this embodiment 2, the first cover 1 is provided with a mating portion 11, the second cover 2 is provided with a ring rib 21, and the abutting end of the sealing skirt 33 extends in a direction away from the first sealing lip 32, that is, the sealing skirt 33 extends downward at an angle from the fixed end to the abutting end. During assembly, the sealing skirt 33 is subjected to force and deforms before the first sealing lip 32. The abutting end folds downward and deforms, while the fixed end deforms upward relative to it. The deformation of the fixed end is transmitted to the first sealing lip 32, so that the first sealing lip 32 fits tightly against the second cover 2. Therefore, this embodiment 2 can omit the setting of the bending portion 35. The main body 31 can extend a certain distance along the axial direction of the mating portion 11 to increase the abutting sealing area between the main body 31 and the mating portion 11, further improving the sealing performance. Correspondingly, the second sealing lip 34 does not need to be bent, but extends in the vertical direction to abut and seal with the first cover 1.
[0066] Example 3:
[0067] This embodiment 3 is basically the same as embodiment 2 in structure and principle, the difference being:
[0068] like Figure 5 and Figure 6As shown in Embodiment 3, the first cover 1 has a mating portion 11, the second cover 2 has a ring rib 21, the first sealing lip 32 abuts and seals with the first cover 1, and the second sealing lip 34 abuts and seals with the second cover 2. Preferably, the abutting surface between the second sealing lip 34 and the second cover 2 is a plane. Collapse problems that occur during the manufacturing process of the first cover 1 and the second cover 2 can still be compensated for by the first sealing lip 32. Moreover, because the first sealing lip 32 abuts and seals with the first cover 1, there is no need to worry about the first sealing lip 32 being trapped between the first cover 1 and the second cover 2 during assembly. If the second sealing lip 34 fails to seal, it can also be compensated for by the abutting seal between the sealing skirt 33 and the ring rib 21.
[0069] For any parts not mentioned in this application, existing technologies may be used or referenced.
[0070] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0071] The above descriptions are merely embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.
Claims
1. A pot lid assembly for a cooking utensil, comprising a first lid body and a second lid body, wherein the first lid body is provided with a steam inlet channel and the second lid body is provided with a steam outlet channel, characterized in that... One of the first cover and the second cover has a mating portion that extends toward the other and abuts against it to connect the steam inlet channel and the steam outlet channel. The pot lid assembly also includes a sealing element, which includes a connected main body and a first sealing lip. The main body is fitted outside the mating portion and abuts against the mating portion to seal it. The first sealing lip abuts against the first cover or the second cover to seal it, and the first sealing lip is bent relative to the main body in a direction away from the mating portion.
2. A pot lid assembly for a cooking utensil according to claim 1, characterized in that, The sealing element also includes a sealing skirt connected to the main body. The first cover or the second cover without the mating part is provided with a ring rib extending in the vertical direction, and the sealing skirt abuts against the ring rib for sealing.
3. A pot lid assembly for a cooking utensil according to claim 2, characterized in that, The interference fit between the sealing skirt and the ring rib is greater than the interference fit between the first sealing lip and the first cover or the second cover.
4. A pot lid assembly for a cooking utensil according to claim 2, characterized in that, The sealing skirt extends horizontally.
5. A pot lid assembly for a cooking utensil according to claim 2, characterized in that, The sealing skirt has a fixed end connected to the main body and an abutting end that abuts against the ring rib. The sealing skirt extends obliquely from the fixed end to the abutting end so that the included angle between the sealing skirt and the ring rib and the included angle between the sealing skirt and the main body are both acute angles.
6. A pot lid assembly for a cooking utensil according to claim 1, characterized in that, The first sealing lip includes an abutting portion that seals with the first cover or the second cover, and a connecting portion that connects the abutting portion and the main body portion. The surface of the connecting portion facing the mating portion is an arc surface.
7. A pot lid assembly for a cooking utensil according to claim 1, characterized in that, The wall thickness of the first sealing lip is less than the wall thickness of the main body.
8. A pot lid assembly for a cooking utensil according to claim 1, characterized in that, The seal also includes a second sealing lip connected to the main body. The first sealing lip and the second sealing lip are located on two opposite sides of the main body. One of the first sealing lip and the second sealing lip abuts and seals against the first cover, and the other abuts and seals against the second cover.
9. A pot lid assembly for a cooking utensil according to claim 8, characterized in that, The seal also includes a bent portion connecting the main body and the second sealing lip, the bent portion extending toward a side away from the mating portion to form an elastic space between the bent portion and the mating portion.
10. A pot lid assembly for a cooking utensil according to claim 8, characterized in that, The second sealing lip is bent toward the mating portion relative to the main body.