Cover body assembly and cooking utensil with same

Abstract

The utility model provides a cover body assembly and a cooking utensil with the cover body assembly, and the cover body assembly comprises an inner cover which is provided with a mounting hole; the outer cover is arranged on the outer side of the inner cover, and a limiting structure is arranged at the position, corresponding to the mounting hole, of the outer cover; the sealing ring structure is detachably installed on the inner cover, and the sealing ring structure comprises a main body ring and a connecting convex part which is connected to the main body ring and extends outwards in the radial direction of the main body ring; wherein the limiting structure is provided with a limiting opening, the bottom surface of the limiting opening is higher than the bottom surface of the mounting hole, the connecting convex part is in clearance fit with the mounting hole, and the connecting convex part can penetrate through the mounting hole to extend into the limiting opening and is in limiting fit with the limiting opening. According to the technical scheme, the problem that the service life of the sealing ring structure is affected by burrs on the inner cover in the prior art can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of small household appliances, in particular to a cover assembly and a cooking utensil having the same. Background Art

[0002] In the related art, the sealing ring structure is an important component of the pressure cooking appliance. The sealing ring structure is set to be detachable so that the user can remove the sealing ring structure for cleaning during use, which can prevent food residues from remaining on the sealing ring structure and affecting the taste of the cooked food.

[0003] Specifically, the sealing ring structure is installed on the inner cover of the cover body assembly and has a connecting protrusion. The inner cover is provided with a mounting hole for the connecting protrusion to extend into and limit the connecting protrusion. However, the mounting hole is generally formed by stamping, and burrs are likely to remain on the surface of the mounting hole. When the user disassembles and assembles the sealing ring structure, the connecting protrusion may scratch the burrs, affecting the service life of the sealing ring.

[0004] At present, there are some solutions to solve the problem of burrs affecting the service life of the sealing ring structure. One of the solutions is to reduce the cross-sectional area of ​​the connecting protrusion so that the cross-sectional area of ​​the connecting protrusion is smaller than the area of ​​the mounting hole on the inner cover, so that the user can avoid the connection protrusion from scratching the burr when disassembling and assembling the sealing ring structure. However, after the sealing ring structure is installed, the sealing ring structure will tend to move downward due to gravity, and then the connecting protrusion will contact the lower edge of the mounting hole. There is still a risk of the burr scratching the connecting protrusion, that is, this method does not completely solve the problem of burrs affecting the service life of the sealing ring. Utility Model Content

[0005] The main purpose of the utility model is to provide a cover assembly and a cooking utensil having the same, so as to solve the problem in the related art that the burrs on the inner cover affect the service life of the sealing ring structure.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a cover body assembly is provided, including: an inner cover, on which a mounting hole is provided; an outer cover, which is arranged on the outer side of the inner cover, and a limiting structure is provided on the outer cover corresponding to the mounting hole; a sealing ring structure, which is detachably mounted on the inner cover, and the sealing ring structure includes a main body ring and a connecting protrusion connected to the main body ring and extending radially outward along the main body ring; wherein the limiting structure has a limiting opening, the bottom surface of the limiting opening is higher than the bottom surface of the mounting hole, the connecting protrusion is gap-matched with the mounting hole, and the connecting protrusion can pass through the mounting hole and extend into the limiting opening and limit-match with the limiting opening.

[0007] By applying the technical solution of the utility model, the sealing ring structure can be detachably arranged on the inner cover, so that the user can remove the sealing ring structure for cleaning. Specifically, a mounting hole is arranged on the inner cover, and a connecting protrusion is arranged on the sealing ring structure, and the connecting protrusion is matched with the mounting hole gap. When the user disassembles and assembles the sealing ring structure, the user can reasonably adjust the position of the connecting protrusion in the mounting hole to avoid the connecting protrusion from contacting with the surface of the mounting hole, thereby avoiding the burrs on the surface of the mounting hole from scratching the connecting protrusion; in addition, a limiting structure is arranged at the position corresponding to the mounting hole on the outer side of the inner cover, and a limiting opening is arranged on the limiting structure, and the bottom surface of the limiting opening is higher than the bottom surface of the mounting hole. When the sealing ring structure is installed, the limiting opening is supported below the connecting protrusion so that there is a certain distance between the connecting protrusion and the lower surface of the mounting hole. That is, whether in the installation process of the sealing ring structure or after the sealing ring structure is installed, it is possible to avoid the connecting protrusion from contacting with the surface of the mounting hole, thereby preventing the burrs at the mounting hole from scratching the connecting protrusion, thereby ensuring the service life of the sealing ring structure. Therefore, the technical solution of the present application can effectively solve the problem in the related art that the burrs on the inner cover affect the service life of the sealing ring structure.

[0008] Furthermore, the outer cover includes an inner liner and a surface cover, the inner liner is arranged between the side wall of the inner cover and the side wall of the surface cover, the limiting structure includes an upper limit vertical plate and a lower limit vertical plate arranged at intervals from top to bottom, and the limiting opening is formed between the upper limit vertical plate and the lower limit vertical plate. The limiting structure is arranged on the inner liner, and the limiting structure includes two vertical plate structures extending in the vertical direction, so as to realize the integral molding of the limiting structure and the inner liner.

[0009] Furthermore, the upper limit plate and the lower limit plate are staggered in the radial direction of the main body ring, which facilitates the processing of the limit structure and the lining through two molds, reduces the mold cost, and has the advantages of simple process and low cost.

[0010] Furthermore, the limiting structure also includes a connecting frame, and the upper limiting vertical plate and the lower limiting vertical plate are connected to the inner lining through the connecting frame, and the connecting frame includes a first supporting side plate and a second supporting side plate arranged at intervals in the circumferential direction of the main body ring, and the two ends of the upper limiting vertical plate are respectively connected to the first supporting side plate and the second supporting side plate, and the two ends of the lower limiting vertical plate are respectively connected to the first supporting side plate and the second supporting side plate. The setting of the connecting frame facilitates the setting of the upper limiting vertical plate and the lower limiting vertical plate to the positions corresponding to the upper and lower surfaces of the mounting hole, respectively, so that the limiting opening is located outside the mounting hole; it can also increase the structural strength of the limiting structure and facilitate the processing of the limiting structure and the inner lining through two molds, thereby reducing the mold cost.

[0011] Furthermore, the first supporting side plate and the second supporting side plate are both abutted against the inner surface of the side wall of the face cover. This arrangement enables the face cover to form an inward support for the limiting structure, so that the upper limit vertical plate and the lower limit vertical plate can be kept at a position close to the mounting hole, thereby limiting the connection protrusion.

[0012] Furthermore, the bottom surface of the limit opening is higher than the bottom surface of the mounting hole by a dimension between 0.25 mm and 0.5 mm; and / or the surface of the limit opening is a smooth transition surface. The bottom surface of the limit opening is higher than the bottom surface of the mounting hole by a dimension within the above range, so that when the sealing ring structure is installed in place, the connecting protrusion can be at a certain distance from the bottom surface of the mounting hole to avoid contact between the connecting protrusion and the bottom surface of the mounting hole. Setting the surface of the limit opening as a smooth transition surface can avoid scratching the connecting protrusion and extend the service life of the sealing ring structure.

[0013] Furthermore, the connecting protrusion includes a connecting arm and a limiting convex rib arranged at one end of the connecting arm away from the main body ring, the limiting convex rib can extend into the limiting opening, and the upper surface and / or lower surface of the limiting convex rib is inclined so that the size of the limiting convex rib in the vertical direction gradually decreases in the direction away from the connecting arm. Such an arrangement makes the cross section of the limiting convex rib form a triangular structure with a small head at the outer end, which facilitates the insertion of the limiting convex rib into the mounting hole and the limiting opening.

[0014] Furthermore, the limiting rib protrudes downward from the connecting arm, and a hooking recess is provided at the connection between the lower surface of the connecting arm and the inner surface of the limiting rib and / or on the lower surface of the connecting arm, and the limiting rib can pass through the installation hole and the limiting opening and extend to the outer sides of the upper limiting vertical plate and the lower limiting vertical plate, and the hooking recess is hooked on the lower limiting vertical plate. When the sealing ring structure is installed in place, the hooking recess is hooked on the lower limiting vertical plate, and the lower limiting vertical plate forms a stop for the hooking recess, preventing the limiting rib from falling out of the limiting opening, thereby ensuring the reliability of the limiting.

[0015] Further, in the direction away from the main body ring, the lower surface of the connecting arm is inclined upward; and / or the hooking recess includes an arc-shaped transition surface provided at the connection between the lower surface of the connecting arm and the position-limiting convex rib. Under the gravity of the main body ring and the guiding action of the lower surface of the connecting arm, the connecting arm can be kept in a position where the hooking recess is hooked and matched with the lower position-limiting vertical plate. The setting of the arc-shaped transition surface makes it easier for the position-limiting convex rib to be separated from the position-limiting vertical plate and can avoid damaging the connecting convex part.

[0016] According to another aspect of the present invention, a cooking utensil is provided, comprising a cover assembly, wherein the cover assembly is the above-mentioned cover assembly. The above-mentioned cover assembly can effectively solve the problem in the related art that the burrs on the inner cover affect the service life of the sealing ring structure, and the cooking utensil having the above-mentioned cover assembly also has the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding 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:

[0018] Figure 1 A cross-sectional schematic diagram of an embodiment of a cover assembly according to the utility model is shown;

[0019] Figure 2 Shows Figure 1 An enlarged view of the cover assembly at A;

[0020] Figure 3 Shows Figure 1 A three-dimensional structural schematic diagram of a sealing ring structure of a cover assembly;

[0021] Figure 4 Shows Figure 1 A schematic diagram of the three-dimensional structure of the inner lining and inner cover of the cover body assembly;

[0022] Figure 5 Shows Figure 4 An enlarged view of the inner lining and the inner cover at B;

[0023] Figure 6 Shows Figure 1 A schematic diagram of the three-dimensional structure of the inner lining of the cover assembly;

[0024] Figure 7 Shows Figure 6 Enlarged view of the lining at C.

[0025] The above drawings include the following reference numerals:

[0026] 10. Inner cover; 11. Mounting hole;

[0027] 20. Outer cover; 21. Inner lining; 22. Surface cover;

[0028] 30. Limiting structure; 31. Limiting opening; 32. Upper limit vertical plate; 33. Lower limit vertical plate; 34. Connecting frame; 341. First supporting side plate; 342. Second supporting side plate;

[0029] 40. Sealing ring structure; 41. Main body ring; 42. Connecting convex part; 421. Connecting arm; 422. Position limiting convex rib; 423. Hooking concave part;

[0030] L1. The bottom surface of the limit opening is higher than the bottom surface of the mounting hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0034] like Figure 1 and Figure 2 As shown, the present application provides a cover assembly, and an embodiment of the cover assembly of the present application includes: an inner cover 10, an outer cover 20, a limiting structure 30 and a sealing ring structure 40. The inner cover 10 is provided with a mounting hole 11; the outer cover 20 is provided on the outer side of the inner cover 10, and a limiting structure 30 is provided on the outer cover 20 corresponding to the mounting hole 11; the sealing ring structure 40 is detachably mounted on the inner cover 10, and the sealing ring structure 40 includes a main body ring 41 and a connecting protrusion 42 connected to the main body ring 41 and extending radially outward from the main body ring 41; wherein the limiting structure 30 has a limiting opening 31, the bottom surface of the limiting opening 31 is higher than the bottom surface of the mounting hole 11, the connecting protrusion 42 is in clearance fit with the mounting hole 11, and the connecting protrusion 42 can pass through the mounting hole 11 and extend into the limiting opening 31 and limit fit with the limiting opening 31.

[0035] By applying the technical solution of this embodiment, the sealing ring structure 40 is detachably arranged on the inner cover 10, so that the user can remove the sealing ring structure 40 for cleaning. Specifically, the inner cover 10 is provided with a mounting hole 11, and the sealing ring structure 40 is provided with a connecting protrusion 42, and the connecting protrusion 42 is in clearance with the mounting hole 11. When the user disassembles and assembles the sealing ring structure 40, the user can reasonably adjust the position of the connecting protrusion 42 in the mounting hole 11 to avoid the connecting protrusion 42 from contacting the surface of the mounting hole 11, thereby avoiding the burrs on the surface of the mounting hole 11 from scratching the connecting protrusion 42; in addition, a limiting structure 30 is arranged at the position corresponding to the mounting hole 11 on the outer side of the inner cover 10, and a limiting opening 31 is arranged on the limiting structure 30, and the bottom surface of the limiting opening 31 is higher than the bottom surface of the mounting hole 11. When the sealing ring structure 40 is installed, the limiting opening 31 is supported below the connecting protrusion 42 so that there is a certain distance between the connecting protrusion 42 and the lower surface of the mounting hole 11. That is, whether during or after the sealing ring structure 40 is installed, the connection protrusion 42 can be prevented from contacting the surface of the mounting hole 11, so that the burrs at the mounting hole 11 cannot scratch the connection protrusion 42, thereby ensuring the service life of the sealing ring structure 40. Therefore, the technical solution of this embodiment can effectively solve the problem in the related art that the burrs on the inner cover affect the service life of the sealing ring structure.

[0036] It should be noted that the above-mentioned "clearance fit" refers to that the maximum cross-sectional area of ​​the connecting protrusion 42 is smaller than the area of ​​the mounting hole 11, so that when the sealing ring structure 40 is installed, there can be a certain gap between the outer periphery of the connecting protrusion 42 and the mounting hole 11 to avoid scratching the connecting protrusion 42. The above-mentioned "limited fit between the connecting protrusion 42 and the limiting opening 31" refers to that the limiting opening 31 can prevent the connecting protrusion 42 from falling out, specifically, the connecting protrusion 42 can be matched with the limiting opening 31 in a manner such as interference fit, hook fit, etc.

[0037] like Figure 1 , Figure 2 as well as Figures 4 to 7 As shown, the outer cover 20 includes an inner lining 21 and a surface cover 22, the inner lining 21 is arranged between the side wall of the inner cover 10 and the side wall of the surface cover 22, the limiting structure 30 includes an upper limit vertical plate 32 and a lower limit vertical plate 33 arranged at intervals from top to bottom, and the limiting opening 31 is formed between the upper limit vertical plate 32 and the lower limit vertical plate 33. The limiting structure 30 is arranged on the inner lining 21, and the limiting structure 30 includes two vertical plate structures extending in the vertical direction, so as to realize the integral molding of the limiting structure 30 and the inner lining 21.

[0038] Specifically, in the present embodiment, the limiting structure 30 and the lining 21 are both made of plastic material, and the limiting structure 30 and the lining 21 are injection molded by two molds that are separately arranged in the up and down directions and can be spliced ​​together.

[0039] like Figure 2 As shown, the upper limit plate 32 and the lower limit plate 33 are staggered in the radial direction of the main body ring 41. The upper limit plate 32 and the lower limit plate 33 are staggered, which facilitates the processing of the limit structure 30 and the liner 21 by two molds, reduces the mold cost, and has the advantages of simple process and low cost. Specifically, the above-mentioned "staggered setting" refers to Figure 2 The left side of the upper limit vertical plate 32 is located to the right of the right side of the lower limit vertical plate 33, or the left side of the upper limit vertical plate 32 is flush with the right side of the lower limit vertical plate 33. Preferably, the distance between the left side of the upper limit vertical plate 32 and the right side of the lower limit vertical plate 33 is between 0.05 mm and 0.2 mm, and the thickness of the upper limit vertical plate 32 and the lower limit vertical plate 33 are both between 1 mm and 2 mm.

[0040] Specifically, Figure 2 As shown, in this embodiment, the connection protrusion 42 realizes the limiting fit between the connection protrusion 42 and the limiting opening 31 through the interference fit between the upper limit vertical plate 32 and the lower limit vertical plate 33. The top surface of the limiting opening 31 is lower than the top surface of the mounting hole 11, so that when the sealing ring structure 40 is installed, the connection protrusion 42 will not touch the upper surface of the mounting hole 11, avoiding scratching the connection protrusion 42. The upper limit vertical plate 32 and the lower limit vertical plate 33 are staggered in the radial direction of the main ring 41, making it easier for the connection protrusion 42 to be inserted into the limiting opening 31.

[0041] In this embodiment, the connection protrusion 42 is limited by the cooperation between the connection protrusion 42 and the top and bottom surfaces of the limiting opening 31; of course, in an embodiment not shown in the figure, the connection protrusion can also be limited by the cooperation between the connection protrusion and the left and right side surfaces of the limiting opening.

[0042] like Figure 2 as well as Figures 4 to 7As shown, the limiting structure 30 also includes a connecting frame 34, and the upper limiting vertical plate 32 and the lower limiting vertical plate 33 are connected to the liner 21 through the connecting frame 34. The connecting frame 34 includes a first supporting side plate 341 and a second supporting side plate 342 spaced apart in the circumferential direction of the main ring 41. The two ends of the upper limiting vertical plate 32 are respectively connected to the first supporting side plate 341 and the second supporting side plate 342, and the two ends of the lower limiting vertical plate 33 are respectively connected to the first supporting side plate 341 and the second supporting side plate 342. The setting of the connecting frame 34 facilitates the setting of the upper limit vertical plate 32 and the lower limit vertical plate 33 to the positions corresponding to the upper and lower surfaces of the mounting hole 11, respectively, so that the limit opening 31 is located on the outside of the mounting hole 11; the first supporting side plate 341 and the second supporting side plate 342 are both vertical plate structures and are both set at an angle to the upper limit vertical plate 32 and the lower limit vertical plate 33, which can increase the structural strength of the limit structure 30 and facilitate the processing of the limit structure 30 and the lining 21 through two molds, thereby reducing the mold cost.

[0043] like Figure 1 and Figure 2 As shown, the first supporting side plate 341 and the second supporting side plate 342 are both abutted against the inner surface of the side wall of the face cover 22. Since the limiting structure 30 has a certain height, the first supporting side plate 341 and the second supporting side plate 342 are both abutted against the side wall of the face cover 22, so that the face cover 22 forms an inward support for the limiting structure 30, so that the upper limiting vertical plate 32 and the lower limiting vertical plate 33 can be kept at a position close to the mounting hole 11, thereby limiting the connection protrusion 42.

[0044] like Figure 1 and Figure 2 As shown, the dimension L1 of the bottom surface of the limit opening 31 being higher than the bottom surface of the mounting hole 11 is between 0.25 mm and 0.5 mm. The dimension L1 is within the above range, so that when the sealing ring structure 40 is installed in place, the connecting protrusion 42 can be at a certain distance from the bottom surface of the mounting hole 11, avoiding the connecting protrusion 42 from contacting the bottom surface of the mounting hole 11. Preferably, the dimension L1 can be 0.25 mm, 0.35 mm or 0.5 mm. Specifically, in this embodiment, the dimension of the top surface of the limit opening 31 being lower than the top surface of the mounting hole 11 is also between 0.25 mm and 0.5 mm.

[0045] like Figure 6 and Figure 7 As shown, the surface of the stop opening 31 is a smooth transition surface. The connection protrusion 42 will come into contact with the surface of the stop opening 31 during the cooperation with the stop structure 30. Setting the surface of the stop opening 31 as a smooth transition surface can avoid scratching the connection protrusion 42 and extend the service life of the sealing ring structure 40.

[0046] like Figures 1 to 3As shown, the connecting protrusion 42 includes a connecting arm 421 and a limiting rib 422 arranged at one end of the connecting arm 421 away from the main body ring 41, the limiting rib 422 can extend into the limiting opening 31, and the upper surface and / or lower surface of the limiting rib 422 are inclined so that the size of the limiting rib 422 in the vertical direction gradually decreases in the direction away from the connecting arm 421. Specifically, in this embodiment, the limiting rib 422 can be limitedly matched with the limiting opening 31, and the upper and lower surfaces of the limiting rib 422 are both inclined so that the cross section of the limiting rib 422 forms a triangular structure with a small head at the outer end, which facilitates the insertion of the limiting rib 422 into the mounting hole 11 and the limiting opening 31.

[0047] like Figure 2 As shown, the limiting rib 422 protrudes downward from the connecting arm 421, and a hooking recess 423 is provided at the connection between the lower surface of the connecting arm 421 and the inner surface of the limiting rib 422 and / or on the lower surface of the connecting arm 421. The limiting rib 422 can pass through the mounting hole 11 and the limiting opening 31 and extend to the outer sides of the upper limiting vertical plate 32 and the lower limiting vertical plate 33, and the hooking recess 423 is hooked on the lower limiting vertical plate 33. When the sealing ring structure 40 is installed in place, the hooking recess 423 is hooked on the lower limiting vertical plate 33, and the lower limiting vertical plate 33 forms a stopper for the hooking recess 423, preventing the limiting rib 422 from coming out of the limiting opening 31, thereby ensuring the reliability of the limiting.

[0048] Specifically, in this embodiment, the hooking recess 423 is an inner concave arc surface formed at the connection between the lower surface of the connecting arm 421 and the inner surface of the limiting rib 422. When the sealing ring structure 40 is installed on the inner cover 10, the limiting rib 422 is located on the outer side of the lower limiting plate 33 and is limitedly matched with the outer surface of the lower limiting plate 33 to prevent the limiting rib 422 from coming out of the limiting opening 31. Of course, in other embodiments not shown in the figure, the hooking recess may also include a groove structure provided on the lower surface of the connecting arm, the width of the groove structure is between 1mm and 5mm (specifically, it can be selected according to the thickness of the lower limiting plate), and the groove structure may be one or multiple groove structures spaced along the radial direction of the main body ring. When the sealing ring structure is installed on the inner cover, the lower limiting plate is inserted into the groove structure, and the groove structure and the inner concave arc surface form multiple limits to ensure the reliability of the limit. Alternatively, the hooking recess only includes a groove structure provided on the lower surface of the connecting arm, which can also achieve an anti-slip effect.

[0049] It should be noted that the above-mentioned “inner surface of the limiting rib 422” refers to the surface of the limiting rib 422 close to the axis of the main body ring 41, that is, Figure 2 The surface on the left side of the middle limiting rib 422.

[0050] Specifically, in this embodiment, the mounting hole 11 and the limiting opening 31 are both rectangular holes, and the cross-section of the limiting rib 422 is also rectangular, wherein the size of the mounting hole 11 is larger than the cross-sectional size of the limiting rib 422, and the cross-sectional size of the limiting rib 422 is larger than the size of the limiting opening 31, so that the sealing ring structure 40 will not be scratched by the burrs on the mounting hole 11 of the inner cover 10 during assembly.

[0051] In order to further ensure the limiting effect of the limiting rib 422, the lower surface of the connecting arm 421 is tilted upward in the direction away from the main body ring 41. Under the gravity of the main body ring 41 and the guiding effect of the lower surface of the connecting arm 421, the connecting arm 421 can be kept in a position where the hooking recess 423 is hooked and matched with the lower limiting vertical plate 33.

[0052] like Figure 1 and Figure 2 As shown, the hooking recess 423 includes an arc-shaped transition surface provided at the connection between the lower surface of the connecting arm 421 and the limiting convex rib 422. When the user disassembles the sealing ring structure 40, the connecting convex portion 42 needs to be pulled outwards. During this process, the limiting convex rib 422 will interfere with the lower limiting vertical plate 33 to a certain extent. The setting of the arc-shaped transition surface makes it easier for the limiting convex rib 422 to be separated from the limiting cooperation with the lower limiting vertical plate 33 and can avoid damaging the connecting convex portion 42.

[0053] In this embodiment, the sealing ring structure 40 is set to a vertically symmetrical structure, so that the user does not need to determine the front and back of the sealing ring structure 40 when installing it, which simplifies the user's operation and facilitates the user's use. Two or more connecting protrusions 42 are evenly distributed on the outer periphery of the main ring 41, and the sealing ring structure 40 is made of silicone material.

[0054] The sealing ring structure 40 is an anti-pot suction sealing ring. The anti-pot suction sealing ring here refers to a sealing ring whose adsorption force with the pot mouth is small enough when the lid is opened and is not easy to cause pot suction, such as the sealing rings disclosed in Chinese patents CN201220212644.3, CN202122306869.7, CN202220681735.5, CN202122595780.7 or CN201320278199.5. This embodiment optimizes the fixing structure between the sealing ring structure 40 and the inner cover 10 on the basis of the anti-pot suction sealing ring. The sealing ring structure 40 is easy to assemble on the inner cover 10, and the sealing ring structure 40 is not easy to be scratched by the burrs on the inner cover 10 during the long-term disassembly and cleaning of the sealing ring structure 40 by the user, thereby extending the service life of the sealing ring structure 40.

[0055] The present application also provides a cooking utensil, comprising a cover assembly, wherein the cover assembly is the above-mentioned cover assembly. The above-mentioned cover assembly can effectively solve the problem in the related art that the burrs on the inner cover affect the service life of the sealing ring structure, and the cooking utensil with the above-mentioned cover assembly also has the above-mentioned advantages.

[0056] In the present embodiment, the cooking utensil is a pressure cooking utensil. Of course, in embodiments not shown in the figure, the cooking utensil can also be products such as an electric rice cooker, a low-pressure rice cooker, a soybean milk machine, a food processor, a cooking machine, an electric stew pot, a multi-function pot, etc.

[0057] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0060] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cover assembly, characterized in that: include: An inner cover (10), wherein a mounting hole (11) is provided on the inner cover (10); An outer cover (20) is arranged on the outer side of the inner cover (10), and a limiting structure (30) is arranged on the outer cover (20) at a position corresponding to the mounting hole (11); A sealing ring structure (40) is detachably mounted on the inner cover (10), wherein the sealing ring structure (40) comprises a main body ring (41) and a connecting protrusion (42) connected to the main body ring (41) and extending radially outward from the main body ring (41); The limiting structure (30) has a limiting opening (31), the bottom surface of the limiting opening (31) is higher than the bottom surface of the mounting hole (11), the connecting protrusion (42) is clearance-matched with the mounting hole (11), and the connecting protrusion (42) can pass through the mounting hole (11) and extend into the limiting opening (31) and limit-match with the limiting opening (31).

2. The cover assembly according to claim 1, characterized in that: The outer cover (20) comprises an inner lining (21) and a surface cover (22); the inner lining (21) is arranged between the side wall of the inner cover (10) and the side wall of the surface cover (22); the limiting structure (30) comprises an upper limit vertical plate (32) and a lower limit vertical plate (33) which are arranged at an interval up and down; the limiting opening (31) is formed between the upper limit vertical plate (32) and the lower limit vertical plate (33).

3. The cover assembly according to claim 2, characterized in that: The upper limit vertical plate (32) and the lower limit vertical plate (33) are staggered in the radial direction of the main body ring (41).

4. The cover assembly according to claim 3, characterized in that: The limiting structure (30) also includes a connecting frame (34), and the upper limiting vertical plate (32) and the lower limiting vertical plate (33) are connected to the inner lining (21) through the connecting frame (34), and the connecting frame (34) includes a first supporting side plate (341) and a second supporting side plate (342) arranged at intervals in the circumferential direction of the main body ring (41), and the two ends of the upper limiting vertical plate (32) are respectively connected to the first supporting side plate (341) and the second supporting side plate (342), and the two ends of the lower limiting vertical plate (33) are respectively connected to the first supporting side plate (341) and the second supporting side plate (342).

5. The cover assembly according to claim 4, characterized in that: The first supporting side plate (341) and the second supporting side plate (342) are both in abutment with the inner surface of the side wall of the face cover (22).

6. The cover assembly according to any one of claims 1 to 5, characterized in that: The dimension (L1) by which the bottom surface of the limiting opening (31) is higher than the bottom surface of the mounting hole (11) is between 0.25 mm and 0.5 mm; and / or, The surface of the limiting opening (31) is a smooth transition surface.

7. The cover assembly according to any one of claims 2 to 5, characterized in that: The connecting protrusion (42) comprises a connecting arm (421) and a limiting rib (422) arranged at one end of the connecting arm (421) away from the main body ring (41); the limiting rib (422) can extend into the limiting opening (31); the upper surface and / or the lower surface of the limiting rib (422) are inclined so that the size of the limiting rib (422) in the vertical direction gradually decreases in the direction away from the connecting arm (421).

8. The cover assembly according to claim 7, characterized in that: The limiting rib (422) protrudes downward from the connecting arm (421); a hooking recess (423) is provided at the connection between the lower surface of the connecting arm (421) and the inner surface of the limiting rib (422) and / or on the lower surface of the connecting arm (421); the limiting rib (422) can pass through the mounting hole (11) and the limiting opening (31) and extend to the outer sides of the upper limiting vertical plate (32) and the lower limiting vertical plate (33) so that the hooking recess (423) is hooked on the lower limiting vertical plate (33).

9. The cover assembly according to claim 8, characterized in that: In a direction away from the main body ring (41), the lower surface of the connecting arm (421) is arranged to be inclined upward; and / or, The hooking recess (423) comprises an arc-shaped transition surface arranged at the connection between the lower surface of the connecting arm (421) and the limiting convex rib (422).

10. A cooking utensil, comprising a cover assembly, characterized in that: The cover assembly is the cover assembly according to any one of claims 1 to 9.

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