CN116687191A - Lid subassembly and have its cooking utensil - Google Patents

Abstract

The application provides a cover body assembly and a cooking utensil with the same, wherein the cover body assembly comprises: the middle part of the buckle cover is provided with a vent hole; the baking component is arranged above the buckle cover and corresponds to the vent hole; the exhaust pipe is arranged on the buckle cover in a penetrating way; the pressure limiting valve is arranged above the exhaust pipe; the sealing cover is detachably arranged below the buckle cover, and is provided with a first annular limiting bulge protruding upwards and a limiting ring arranged on the inner side of the first annular limiting bulge; the first sealing part comprises a first sealing lip edge, a second sealing lip edge and a limiting part, wherein the first sealing lip edge is in sealing fit with the outer side face of the first annular limiting protrusion, and the second sealing lip edge is in sealing fit with the lower surface of the buckle cover so as to isolate the exhaust pipe from the baking assembly. The technical scheme of the application can effectively solve the problem that steam in the related technology enters into the baking assembly to form condensed water to damage the baking assembly.

Description

Lid subassembly and have its cooking utensil

Technical Field

The application relates to the technical field of small household appliances, in particular to a cover body assembly and a cooking utensil with the same.

Background

In the related art, the multifunctional cooking appliance has a pressure cooking mode and a baking cooking mode, and a user can select the two cooking modes according to the needs, so that the use of the user is greatly facilitated. In the two cooking modes, the pressure requirements in the cooking cavity are different, so that two covers, namely a pressure cover and a baking cover, are generally configured to adapt to different cooking modes.

Currently, integrated lid assemblies have appeared on the market, i.e. one lid assembly can be used in both pressure cooking and baking cooking modes. In the pressure cooking mode, a large amount of steam is generated in the cooking cavity, and the generated steam enters the interior of the baking assembly to form condensed water, so that the baking assembly is damaged.

Disclosure of Invention

The application mainly aims to provide a cover body assembly and a cooking utensil with the cover body assembly, so as to solve the problem that steam in the related art enters into a baking assembly to form condensed water to damage the baking assembly.

In order to achieve the above object, according to one aspect of the present application, there is provided a cover assembly comprising: the middle part of the buckle cover is provided with a vent hole; the baking component is arranged above the buckle cover and corresponds to the vent hole; the exhaust pipe is arranged on the buckle cover in a penetrating way; the pressure limiting valve is arranged above the exhaust pipe; the sealing cover is detachably arranged below the buckle cover, a first annular limiting bulge protruding upwards and a limiting ring arranged on the inner side of the first annular limiting bulge are arranged on the sealing cover, and the first annular limiting bulge is arranged on the outer side of the vent hole in a surrounding mode and is positioned on the inner side of the exhaust pipe; the first sealing part comprises a first sealing lip edge, a second sealing lip edge and a limiting part, the limiting part is matched with the first annular limiting protrusion to fix the first sealing part on the sealing cover, the first sealing lip edge is matched with the outer side face of the first annular limiting protrusion in a sealing mode, and the second sealing lip edge is matched with the lower surface of the buckle cover in a sealing mode to isolate the exhaust pipe from the baking assembly.

By applying the technical scheme of the embodiment, the cover body assembly comprises: the baking device comprises a buckle cover, a baking assembly and a sealing cover. The sealing cover is detachably arranged below the buckle cover, and in a baking and cooking mode, the food in the cooking cavity can be heated through the baking assembly after the sealing cover is taken down; in the pressure cooking mode, the sealing cover is arranged below the buckle cover, so that the baking assembly and the cooking cavity can be separated, and steam in the pressure cooking process is prevented from entering the baking assembly. Specifically, be provided with first sealing portion on the sealed cover, first sealing portion includes first sealing lip and second sealing lip, and first sealing lip and the sealing of the lateral surface of first annular spacing protruding cooperate, and second sealing lip and the lower surface sealing cooperation of buckle closure. The structure can prevent steam generated in the pressure cooking process from entering the interior of the baking assembly. Along with the rising of pressure in the cooking cavity, first sealing lip can be tightly attached to the outer side face of the first annular limiting protrusion under the action of pressure, and the second sealing lip can be tightly attached to the lower surface of the buckle closure under the action of pressure, so that the sealing effect is further ensured, and steam generated in the pressure cooking process is ensured not to enter the interior of the baking assembly through a gap between the buckle closure and the sealing cover. Therefore, the technical scheme of the application can effectively solve the problem that steam in the related technology enters into the baking assembly to form condensed water to damage the baking assembly.

Further, the buckle closure is provided with a second annular limiting protrusion protruding downwards, and the second sealing lip is obliquely arranged upwards and is in sealing fit with the outer side face of the second annular limiting protrusion and is adaptive in shape. After the cooking cavity is pressed upwards, the second sealing lip is pressed on the second annular limiting protrusion under the action of pressure facing obliquely upwards, and the sealing effect is good. Meanwhile, a crack with smaller distance in the height direction can be formed between the second annular limiting protrusion and the first annular limiting protrusion to clamp the first sealing part, so that the first sealing part is prevented from being inwards extruded to be separated from a sealing position when the pressure is overlarge.

Further, the protruding dimension of the first annular limiting protrusion is larger than the protruding dimension of the second annular limiting protrusion. The arrangement can enable the structure inside the cover body assembly to be more compact, and the volume of the cover body assembly is reduced.

Further, the first annular limiting protrusion comprises a first annular inner wall and a first annular outer wall which are obliquely arranged, and a first included angle a is formed between the first annular inner wall and the first annular outer wall; the second annular limiting protrusion comprises a second annular inner wall and a second annular outer wall, wherein the second annular inner wall is obliquely arranged, the second annular outer wall is obliquely arranged, a second included angle b is formed between the second annular inner wall and the second annular outer wall, and the first included angle a is smaller than the second included angle b. The height relation of the first annular limiting protrusion and the second annular limiting protrusion is matched, so that the sealing cover and the buckle cover are more reasonable in structure.

Further, the range of the first included angle a satisfies: the range of the second included angle b is more than or equal to 23 degrees and less than or equal to 33 degrees, and the range of the second included angle b meets the following conditions: b is more than or equal to 95 degrees and less than or equal to 105 degrees. The first included angle a can reduce the processing difficulty of the first annular limiting protrusion when meeting the range, and meanwhile, the sealing effect between the first sealing lip and the outer side face of the first annular limiting protrusion is guaranteed. The second included angle b can reduce the processing difficulty of the second annular limiting protrusion when meeting the range, and simultaneously ensures the sealing effect between the second sealing lip and the outer side surface of the second annular limiting protrusion.

Further, the first annular limiting protrusion further comprises a first arc portion located between the first annular inner wall and the first annular outer wall, and the second annular limiting protrusion further comprises a second arc portion located between the second annular inner wall and the second annular outer wall. The first annular inner wall and the first annular outer wall are connected through the first arc part, the second annular inner wall and the second annular outer wall are connected through the second arc part, and the structural strength of the first annular limiting protrusion and the second annular limiting protrusion can be guaranteed.

Further, a third included angle c is formed between the first sealing lip and the second sealing lip, and the range of the third included angle c meets the following conditions: c is more than or equal to 46 degrees and less than or equal to 57 degrees. And when the third included angle c meets the range, the sealing effect is ensured.

Further, the length L1 of the first sealing lip is greater than the length L2 of the second sealing lip. The height relation of the first annular limiting protrusion and the second annular limiting protrusion is matched, and the sealing effect is guaranteed.

Further, the length L1 of the first sealing lip ranges from: l1 is more than or equal to 7.5mm and less than or equal to 10.5mm, and the length L2 of the second sealing lip is in the range of: l2 is more than or equal to 4mm and less than or equal to 8mm. When the length L1 meets the range, the sealing effect between the first sealing lip and the outer side surface of the first annular limiting protrusion can be ensured. When the length L2 meets the range, the sealing effect between the second sealing lip and the outer side surface of the second annular limiting protrusion can be ensured.

Further, the limiting part comprises a first limiting lip edge and a second limiting lip edge, the first limiting lip edge is clamped between the second annular limiting bulge and the limiting ring, and a containing concave part for containing the limiting ring is formed between the first limiting lip edge and the second limiting lip edge. The first limiting lip is clamped between the first annular limiting bulge and the limiting ring, the second limiting lip is clamped between the second annular limiting bulge and the limiting ring, and the limiting ring is located in a containing concave part formed between the first limiting lip and the second limiting lip, so that the fixing effect of the first sealing part is guaranteed.

Further, the first limiting lip is in sealing fit with the inner side surface of the first annular limiting protrusion, and/or the second limiting lip is arranged in an upward inclined mode and in sealing fit with the inner side surface of the second annular limiting protrusion. The sealing area between the first sealing part and the second annular limiting protrusion and the sealing area between the first annular limiting protrusion can be increased, and the sealing effect is enhanced.

Further, the second annular limiting protrusion and the first annular limiting protrusion are arranged in a staggered mode, and the bottom of the second annular limiting protrusion is located between the top of the first annular limiting protrusion and the limiting ring. In the upward pressing process, the sealing cover is pressed upward by pressure in the cooking cavity, and the second annular limiting protrusion, the first annular limiting protrusion and the limiting ring clamp the first sealing part along the up-down direction, so that the first sealing part is kept at a sealing position, and the sealing effect is ensured.

Further, be provided with the heavy bench portion of downward bulge on the buckle closure, heavy bench portion sets up in the protruding inboard of second annular spacing, toasts the subassembly setting in heavy bench portion department, and heavy bench portion includes the bottom plate and connects the curb plate in the bottom plate periphery, all is provided with the ventilation hole on bottom plate and the curb plate. In the baking mode, hot air can be blown into the cooking cavity through the vent holes to heat the food.

Further, the height of the sinking platform part is larger than that of the second annular limiting protrusion. Therefore, the second annular limiting protrusion can be prevented from blocking hot air blown out through the side plate, and the heating effect on food is guaranteed.

Further, the cover body assembly further comprises a connecting assembly, the connecting assembly comprises a fixing part penetrating through the buckle cover and a connecting part penetrating through the sealing cover, and the connecting part is connected with the fixing part in a plug-in mode. The detachable connection between the sealing cover and the buckle closure can be realized through the arrangement, and the detachable connection device has the advantages of simple structure and easy detachment.

Further, the cover assembly further comprises a second sealing part arranged on the periphery of the sealing cover, the second sealing part is arranged on the outer side of the first sealing part, the second sealing part comprises a first lip extending upwards and a second lip extending downwards, a connecting concave part is arranged between the first lip and the second lip, and the sealing cover is arranged in the connecting concave part. When pressure cooking is carried out, the second sealing part is clamped between the buckle cover and the pot body, so that the cooking cavity is sealed, and the upward pressing effect is ensured.

Further, the sealing cover is also provided with a gas passing hole, and the gas passing hole is positioned at the outer side of the first annular limiting protrusion. The blast pipe is located the protruding outside of first annular spacing, and during the exhaust, the inside gas of cooking cavity can be followed the gas hole and got into in the lid subassembly, then discharges through the blast pipe.

Further, the baking assembly comprises a cover body, a heating piece, a fan blade and a motor assembly for driving the fan blade to rotate, the cover body is arranged above the buckle cover and is attached to the buckle cover, the middle part of the cover body protrudes upwards to form an accommodating space between the cover body and the buckle cover, the fan blade and the motor assembly are arranged in the accommodating space, and the motor assembly is arranged above the cover body; the cover body assembly further comprises a face cover, and the face cover is covered on the buckle cover and the baking assembly. The arrangement makes the structure inside the cover body assembly more compact, and the volume of the cover body assembly can be reduced.

According to another aspect of the present application, there is provided a cooking appliance including a pot body and a cover assembly provided on the pot body, the cover assembly being the above-mentioned cover assembly. The cover body assembly can effectively solve the problem that steam in the related technology enters into the baking assembly to form condensed water so as to damage the baking assembly. The cooking appliance with the cover assembly also has the advantages.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a cap assembly according to the present application;

FIG. 2 shows an exploded view of a portion of the structure of the cap assembly of FIG. 1;

FIG. 3 illustrates a schematic perspective view of the cap assembly of FIG. 2;

FIG. 4 shows a schematic cross-sectional view of the cap assembly of FIG. 3;

FIG. 5 shows an enlarged view of the cap assembly of FIG. 4 at A;

FIG. 6 shows a schematic perspective view of the clasp cover of the cap assembly of FIG. 1;

FIG. 7 shows a schematic cross-sectional view of a portion of the structure of the buckle closure of FIG. 6;

FIG. 8 illustrates a schematic perspective view of a sealing cap of the cap assembly of FIG. 1;

FIG. 9 shows a schematic cross-sectional view of a portion of the structure of the seal housing of FIG. 8;

FIGS. 10a and 10b are schematic cross-sectional views showing a part of the structure of the first sealing part of the cap assembly of FIG. 1; and

fig. 11 is a schematic cross-sectional view showing a part of the structure of the second sealing portion of the cap assembly of fig. 1.

Wherein the above figures include the following reference numerals:

10. a buckle cover; 11. the second annular limiting bulge; 111. a second annular inner wall; 112. a second annular outer wall; 113. a second arc portion; 12. a sinking platform part; 121. a bottom plate; 122. a side plate; 13. a vent hole; 20. a baking assembly; 21. a cover body; 22. a heat generating member; 23. a fan blade; 24. a motor assembly; 25. an accommodation space; 26. a fixing buckle; 30. an exhaust pipe; 50. a sealing cover; 51. the first annular limiting bulge; 511. a first annular inner wall; 512. a first annular outer wall; 513. a first arc portion; 52. a limiting ring; 53. air passing holes; 54. a connecting piece; 60. a first sealing part; 61. a first sealing lip; 62. a second sealing lip; 63. a first limit lip; 64. a second limiting lip; 65. a receiving recess; 70. a connection assembly; 71. a fixing part; 72. a connection part; 80. a second sealing part; 81. a first lip; 82. a second lip; 83. a connection recess; 90. and (5) a face cover.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1 to 5, the cover assembly of the present embodiment includes: the lid 10, the baking assembly 20, the exhaust pipe 30, the pressure limiting valve, the seal cover 50, and the first seal 60. Wherein, the middle part of the buckle cover 10 is provided with a vent hole 13; the baking component 20 is arranged above the buckle cover 10 and corresponds to the vent hole 13; the exhaust pipe 30 penetrates through the buckle cover 10; the pressure limiting valve is arranged above the exhaust pipe 30; the sealing cover 50 is detachably arranged below the buckle cover 10, the sealing cover 50 is provided with a first annular limiting protrusion 51 protruding upwards and a limiting ring 52 arranged on the inner side of the first annular limiting protrusion 51, and the first annular limiting protrusion 51 is arranged on the outer side of the vent hole 13 in a surrounding manner and positioned on the inner side of the exhaust pipe 30; the first sealing part 60 comprises a first sealing lip 61, a second sealing lip 62 and a limiting part, wherein the limiting part is matched with the first annular limiting protrusion 51 to fix the first sealing part 60 to the sealing cover 50, the first sealing lip 61 is matched with the outer side surface of the first annular limiting protrusion 51 in a sealing way, and the second sealing lip 62 is matched with the lower surface of the buckle cover 10 in a sealing way to isolate the exhaust pipe 30 from the baking assembly 20.

By applying the technical scheme of the embodiment, the cover body assembly comprises: a clasp cover 10, a baking assembly 20 and a sealing cap 50. The sealing cover 50 is detachably arranged below the buckle closure 10, and in a baking cooking mode, the food in the cooking cavity can be heated by the baking assembly 20 after the sealing cover 50 is removed; in the pressure cooking mode, the sealing cover 50 is installed below the buckle cover 10 to isolate the baking assembly 20 from the cooking cavity, so that steam in the pressure cooking process is prevented from entering the interior of the baking assembly 20. Specifically, the seal cover 50 is provided with a first sealing portion 60, the first sealing portion 60 includes a first sealing lip 61 and a second sealing lip 62, the first sealing lip 61 is in sealing engagement with an outer side surface of the first annular limiting projection 51, and the second sealing lip 62 is in sealing engagement with a lower surface of the buckle closure 10. The above structure can prevent steam generated during the pressure cooking process from entering the interior of the toaster assembly 20. As the pressure in the cooking cavity increases, the first sealing lip 61 will be pressed against the outer side of the first annular limiting protrusion 51 under the action of pressure, and the second sealing lip 62 will be pressed against the lower surface of the lid 10 under the action of pressure, so as to further ensure the sealing effect, and ensure that the vapor generated during the pressure cooking process will not enter the baking assembly 20 through the gap between the lid 10 and the sealing cover 50. Therefore, the technical scheme of the embodiment can effectively solve the problem that steam in the related technology enters into the baking assembly to form condensed water to damage the baking assembly.

It should be noted that, as shown in fig. 4, in the present application, "inside" refers to a side close to the vertical axis of the cap assembly, and "outside" refers to a side far from the vertical axis of the cap assembly, that is, a side close to the rim of the cap assembly. While the above-described "middle portion of the buckle cover 10" is not limited to the center position.

As shown in fig. 4 to 7, in the present embodiment, the buckle cover 10 is provided with a second annular limiting projection 11 projecting downward, and the second sealing lip 62 is disposed obliquely upward and is in sealing engagement and shape-fitting with the outer side surface of the second annular limiting projection 11. In this way, after the cooking cavity is pressurized, the second sealing lip 62 is pressed against the second annular limiting protrusion 11 under the action of the pressure directed obliquely upwards, and the sealing effect is good. Meanwhile, a crack with smaller distance in the height direction can be formed between the second annular limiting protrusion 11 and the first annular limiting protrusion 51 to clamp the first sealing portion 60, so that the first sealing portion 60 is prevented from being extruded inwards to be separated from a sealing position when the pressure is too high.

In addition, as shown in fig. 4, 5, 8 and 9, the seal cap 50 further includes a stopper ring 52 provided inside the first annular stopper protrusion 51, and the stopper ring 52 is welded to the main body of the seal cap 50 by a plurality of connection pieces 54. Has the advantages of simple structure and easy processing and manufacturing. The stop cooperates with the first annular stop tab 51 to secure the first seal 60 to the seal housing 50. In the pressing process, the limiting ring 52 can also stop the first sealing portion 60, so that the first sealing portion 60 is prevented from being pressed inwards to be separated from the sealing position when the pressure is too high.

In the present embodiment, the first annular limiting protrusion 51 provided on the seal cap 50 can also enhance the strength of the seal cap 50, so that the seal cap 50 can be made thinner, and the production cost of the cap assembly can be effectively reduced. When the sealing cover 50 is pressed up, a certain pressure is born, and the first annular limiting protrusion 51 is tightly attached to the lower surface of the buckle cover 10, so that the buckle cover 10 and the sealing cover 50 bear pressure together.

As shown in fig. 4, 5 and 8 to 10, the stopper includes a first stopper lip 63 and a second stopper lip 64, the first stopper lip 63 being sandwiched between the second annular stopper projection 11 and the stopper ring 52, and a receiving recess 65 for receiving the stopper ring 52 being formed between the first stopper lip 63 and the second stopper lip 64. The first limiting lip 63 is clamped between the first annular limiting protrusion 51 and the limiting ring 52, the second limiting lip 64 is clamped between the second annular limiting protrusion 11 and the limiting ring 52, and the limiting ring 52 is positioned in the accommodating recess 65 formed between the first limiting lip 63 and the second limiting lip 64, so as to ensure the fixing effect on the first sealing portion 60.

As shown in fig. 4 and 5, the first limiting lip 63 is in sealing engagement with the inner side of the first annular limiting projection 51, and the second limiting lip 64 is disposed obliquely upward and in sealing engagement with the inner side of the second annular limiting projection 11. This can increase the sealing area between the first sealing portion 60 and the second annular spacing protrusion 11 and the first annular spacing protrusion 51, enhancing the sealing effect.

As shown in fig. 4 and 5, in the present embodiment, the second annular spacing protrusion 11 and the first annular spacing protrusion 51 are disposed in a staggered manner, and the bottom of the second annular spacing protrusion 11 is located between the top of the first annular spacing protrusion 51 and the spacing ring 52. It should be noted that, the above-mentioned "the bottom of the second annular limiting protrusion 11 is located between the top of the first annular limiting protrusion 51 and the limiting ring 52" means: in the transverse direction, the lowest part of the second annular limiting protrusion 11 is located between the highest part of the first annular limiting protrusion 51 and the highest part of the limiting ring 52, so that in the process of upward pressing, the sealing cover 50 is pressed upwards by the pressure in the cooking cavity, and the second annular limiting protrusion 11, the first annular limiting protrusion 51 and the limiting ring 52 clamp the first sealing part 60 in the vertical direction, so that the first sealing part 60 is kept at a sealing position, and the sealing effect is ensured.

As shown in fig. 4 to 7, in the present embodiment, a sinking platform portion 12 protruding downward is provided on the buckle cover 10, the sinking platform portion 12 is provided inside the second annular limiting protrusion 11, the baking assembly 20 is provided at the sinking platform portion 12, the sinking platform portion 12 includes a bottom plate 121 and a side plate 122 connected to the outer periphery of the bottom plate 121, and ventilation holes 13 are provided on both the bottom plate 121 and the side plate 122. In the baking mode, hot air can be blown into the cooking cavity through the ventilation holes 13 to heat the food.

As shown in fig. 5, in the present embodiment, the height of the counter part 12 is greater than the height of the second annular stopper protrusion 11. This can prevent the second annular stopper protrusion 11 from blocking the hot air blown out through the side plate 122, ensuring the heating effect on the food. Accordingly, the protruding dimension of the first annular spacing protrusion 51 is larger than the protruding dimension of the second annular spacing protrusion 11. Thus, the seal cover 50 can avoid the sinking platform 12, so that the structure inside the cover body assembly is more compact, and the volume of the cover body assembly is reduced.

As shown in fig. 4, 5, 7 and 9, the first annular limiting protrusion 51 includes a first annular inner wall 511 disposed obliquely and a first annular outer wall 512 disposed obliquely, and a first included angle a is formed between the first annular inner wall 511 and the first annular outer wall 512; the second annular limiting protrusion 11 comprises a second annular inner wall 111 and a second annular outer wall 112 which are obliquely arranged, and a second included angle b is formed between the second annular inner wall 111 and the second annular outer wall 112, wherein the first included angle a is smaller than the second included angle b. The arrangement is matched with the height relation of the first annular limiting protrusion 51 and the second annular limiting protrusion 11, so that the structures of the sealing cover 50 and the buckle closure 10 are more reasonable.

Specifically, in the present embodiment, as shown in fig. 7 and 9, the range of the first included angle a satisfies: a is more than or equal to 23 degrees and less than or equal to 33 degrees. The first included angle a can reduce the processing difficulty of the first annular limiting protrusion 51 when the first included angle a meets the above range, and simultaneously ensure the sealing effect between the first sealing lip 61 and the outer side surface of the first annular limiting protrusion 51. The range of the second included angle b satisfies: b is more than or equal to 95 degrees and less than or equal to 105 degrees. The second included angle b can reduce the processing difficulty of the second annular limiting protrusion 11 when meeting the above range, and simultaneously ensure the sealing effect between the second sealing lip 62 and the outer side surface of the second annular limiting protrusion 11. Preferably, the first included angle a may be 23 °, 28 °, 33 °, or the like. The second included angle b may be 95 °, 100 °, 105 °, etc.

As shown in fig. 4, 5, 7 and 9, the first annular stopper protrusion 51 further includes a first circular arc portion 513 between the first annular inner wall 511 and the first annular outer wall 512, and the second annular stopper protrusion 11 further includes a second circular arc portion 113 between the second annular inner wall 111 and the second annular outer wall 112. The first circular arc portion 513 connects the first annular inner wall 511 and the first annular outer wall 512, and the second circular arc portion 113 connects the second annular inner wall 111 and the second annular outer wall 112, so that the structural strength of the second annular limiting protrusion 11 of the first annular limiting protrusion 51 can be ensured.

In this embodiment, the shape of the first sealing portion 60 is adapted to the structure of the second annular spacing protrusion 11 of the first annular spacing protrusion 51, and when the first sealing portion 60 is pressed up, the first sealing portion 60 can be tightly attached to the second annular spacing protrusion 11 of the first annular spacing protrusion 51, so that the sealing effect is good.

Accordingly, as shown in fig. 10a, a fourth included angle a 'is formed between the first sealing lip 61 and the first limiting lip 63, and a fifth included angle b' is formed between the second sealing lip 62 and the second limiting lip 64, wherein the first included angle a is equal to the fourth included angle a ', and the second included angle b is equal to the fifth included angle b'.

As shown in fig. 10a, a third included angle c is formed between the first sealing lip 61 and the second sealing lip 62, and the range of the third included angle c satisfies: c is more than or equal to 46 degrees and less than or equal to 57 degrees. And when the third included angle c meets the range, the sealing effect is ensured. Preferably, the third included angle c is 46 °, 51 ° or 57 °, etc.

As shown in fig. 10b, the length L1 of the first sealing lip 61 is greater than the length L2 of the second sealing lip 62.

Specifically, the length L1 of the first sealing lip ranges from: l1 is more than or equal to 7.5mm and less than or equal to 10.5mm. When the length L1 satisfies the above range, the sealing effect between the first sealing lip 61 and the outer side surface of the first annular stopper projection 51 can be ensured. The length L2 of the second sealing lip ranges from: l2 is more than or equal to 4mm and less than or equal to 8mm. When the length L2 satisfies the above range, the sealing effect between the second sealing lip 62 and the outer side surface of the second annular stopper projection 11 can be ensured. Preferably, the length L1 is 7.5mm, 9mm, 10.5mm, etc., and the length L2 is 4mm, 6mm, 8mm, etc.

As shown in fig. 2 and 4, the cover assembly further includes a connection assembly 70, where the connection assembly 70 includes a fixing portion 71 penetrating through the buckle cover 10 and a connection portion 72 penetrating through the seal cover 50, and the connection portion 72 is in plug connection with the fixing portion 71. The arrangement can realize the detachable connection between the sealing cover 50 and the buckle cover 10, and has the advantages of simple structure and easy detachment.

As shown in fig. 4 and 11, the cap assembly further includes a second sealing part 80 provided at the outer circumference of the sealing cap 50, the second sealing part 80 being provided at the outer side of the first sealing part 60, the second sealing part 80 including a first lip 81 extending upward and a second lip 82 extending downward, a coupling recess 83 being provided between the first lip 81 and the second lip 82, and the sealing cap 50 being provided in the coupling recess 83. When pressure cooking is performed, the second sealing part 80 is clamped between the buckle cover 10 and the pot body, so that the cooking cavity is sealed, and the upward pressing effect is ensured.

As shown in fig. 3, 4, 8 and 9, the seal cover 50 is further provided with an air passing hole 53, and the air passing hole 53 is located outside the first annular limiting protrusion 51. The exhaust pipe 30 is located outside the first annular limiting protrusion 51, and when exhausting, gas inside the cooking cavity can enter the cover assembly from the gas passing hole 53 and then be exhausted through the exhaust pipe 30.

As shown in fig. 1 to 4, the baking assembly 20 comprises a cover body 21, a heating element 22, a fan blade 23 and a motor assembly 24 for driving the fan blade 23 to rotate, wherein the cover body 21 is arranged above the buckle cover 10 and is in fit with the buckle cover 10, the middle part of the cover body 21 protrudes upwards to form an accommodating space 25 between the cover body 21 and the buckle cover 10, the heating element 22 and the fan blade 23 are arranged in the accommodating space 25, and the motor assembly 24 is arranged above the cover body 21; the cover assembly further includes a cover 90, the cover 90 covering the buckle closure 10 and the baking assembly 20. Wherein, the heating element 22 is arranged on the cover body 21 through the fixing buckle 26. The arrangement makes the structure inside the cover body assembly more compact, and the volume of the cover body assembly can be reduced.

In this embodiment, the heating element 22 is disposed on the cover 21 through the fixing buckle 26, and the motor assembly 24 passes through the cover 21, and then the fan blade 23 is mounted and the fan blade 23 is fixed through the nut. The fixing portion 71 passes through the central hole of the buckle cover 10 and is fixed by a nut to form a fixing buckle position. The motor assembly 24 is also screwed to the housing 21. The limiting ring 52 is welded on the sealing cover 50, and the first sealing part 60 is sleeved between the limiting ring 52 and the first annular limiting bulge 51 to realize positioning. The second sealing portion 80 is sleeved on the buckle cover 10. The connecting portion 72 is inserted through the central hole of the sealing cap 50 and is connected with the fixing portion 71 in a plugging manner.

When pressure cooking is performed, the connection portion 72 and the fixing portion 71 are connected in a plug-in manner to connect the sealing cap 50 to the buckle closure 10. At this time, when a certain pressure is generated in the pot, air pressure enters the outer periphery of the first sealing part 60 from the air passing hole 53, and under the action of the pressure, the first sealing lip 61 and the second sealing lip 62 are spread to two sides and respectively attached to the first annular limiting protrusion 51 and the second annular limiting protrusion 11.

The seal properties of the cap assemblies obtained in examples 1 to 11 and comparative examples 1 to 8 were tested and the properties are shown in table 1.

TABLE 1

The above-mentioned sealability means the maximum pressure that can be borne in the case of the airtight cap assembly, and in this embodiment, when the sealability is 200Kpa or more, the product is acceptable.

As can be seen from the comparison of the data in table 1, the sealing performance of the cover assembly can be improved by reasonably taking the values of the five parameters by adopting the technical schemes of the embodiments 1 to 11 of the application.

As is evident from the data of examples 1 to 3 and comparative example 1, the sealability of the cap assembly is reduced as the first included angle a is increased. When the range of the first included angle a meets the following conditions: a is more than or equal to 23 degrees and less than or equal to 33 degrees, and the cover body assembly can meet the requirement of tightness; when the first included angle a=50°, the cover assembly cannot meet the sealing requirement.

As is evident from the data of example 2, example 4, example 5 and comparative example 2, the sealability of the cap assembly is reduced as the second included angle b is increased. When the range of the second included angle b satisfies: b is more than or equal to 95 degrees and less than or equal to 105 degrees, and the cover body component can meet the requirement of tightness; when the second included angle b=120°, the cover assembly cannot meet the sealing requirement.

As is evident from the data of example 2, example 6, example 7 and comparative example 3, the sealability of the cap assembly is also enhanced as the third included angle c is increased. When the range of the third included angle c satisfies: when c is more than or equal to 46 degrees and less than or equal to 57 degrees, the cover body assembly can meet the requirement of tightness; when the third included angle c=35°, the cover assembly cannot meet the sealing requirement.

From the data of example 2, example 8, example 9 and comparative example 4, it is understood that the sealability of the cap assembly is also enhanced as the length L1 is increased. Likewise, as can be seen from the data of example 2, example 10, example 11 and comparative example 5, as the length L2 increases, the sealability of the cap assembly also increases. I.e., the greater the length L1 and the length L2, the better the cover assembly interior space will permit. In this embodiment, the range of the length L1 of the first sealing lip satisfies: l1 is more than or equal to 7.5mm and less than or equal to 10.5mm; the length L2 of the second sealing lip ranges from: l2 is more than or equal to 4mm and less than or equal to 8mm, and can simultaneously meet the requirements of tightness and compact structure in the cover body component.

As can be seen from the data of examples 1 to 11 and comparative examples 1 to 8, when the range of the first angle a satisfies: the range of the second included angle b is more than or equal to 23 degrees and less than or equal to 33 degrees, and the range of the second included angle b meets the following conditions: b is more than or equal to 95 degrees and less than or equal to 105 degrees, and the range of the third included angle c meets the following conditions: when c is larger than or equal to 46 degrees and smaller than or equal to 57 degrees, the length L1 of the first sealing lip is in the range of: l1 is more than or equal to 7.5mm and less than or equal to 10.5mm, and the length L2 of the second sealing lip is in the range of: l2 is more than or equal to 4mm and less than or equal to 8mm, and can meet the sealing requirement of the cover body component. When one or more of the five values are out of the corresponding ranges, the cover assembly fails to meet the sealing requirement.

The application also provides a cooking utensil, which comprises a cooker body and a cover body assembly covered on the cooker body, wherein the cover body assembly is the cover body assembly. The cover assembly includes a first sealing portion 60, the first sealing portion 60 including a first sealing lip 61 and a second sealing lip 62, the first sealing lip 61 being in sealing engagement with an outer side of the first annular stop tab 51, the second sealing lip 62 being in sealing engagement with a lower surface of the buckle closure 10. This prevents vapors generated during pressure cooking from entering the interior of the grilling component 20. As the pressure in the cooking cavity increases, the first sealing lip 61 will be tightly attached to the outer side surface of the first annular limiting protrusion 51 under the action of pressure, and the second sealing lip 62 will be tightly attached to the lower surface of the buckle closure 10 under the action of pressure, so as to further ensure the sealing effect, and ensure that the vapor generated during the pressure cooking process will not enter the baking assembly 20 through the gap between the buckle closure 10 and the sealing cover 50. The cover body assembly can effectively solve the problem that the steam in the related art enters the baking assembly to form condensed water to damage the baking assembly, so that the cooking utensil with the cover body assembly has the advantages.

In this embodiment, the cooking appliance is a multi-functional cooking appliance having a pressure cooking mode and a bake cooking mode. Of course, in the embodiment not shown in the drawings, the cooking appliance may also be a product such as an electric rice cooker, a low-pressure rice cooker, a soymilk machine, a cooking machine, a cooker, an electric stewpot, a multifunctional pot, etc.

In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (19)

1. A cover assembly, comprising:

the novel multifunctional electric kettle comprises a buckle cover (10), wherein a vent hole (13) is formed in the middle of the buckle cover (10);

a baking component (20) which is arranged above the buckle cover (10) and corresponds to the ventilation hole (13);

the exhaust pipe (30) is arranged through the buckle cover (10);

the pressure limiting valve is arranged above the exhaust pipe (30);

the sealing cover (50) is detachably arranged below the buckle cover (10), a first annular limiting protrusion (51) protruding upwards and a limiting ring (52) arranged on the inner side of the first annular limiting protrusion (51) are arranged on the sealing cover (50), and the first annular limiting protrusion (51) is arranged on the outer side of the vent hole (13) in a surrounding mode and is positioned on the inner side of the exhaust pipe (30);

a first sealing portion (60) comprising a first sealing lip (61), a second sealing lip (62) and a stop portion cooperating with the first annular stop projection (51) to fix the first sealing portion (60) to the seal housing (50),

wherein the first sealing lip (61) is in sealing engagement with the outer side surface of the first annular spacing projection (51), and the second sealing lip (62) is in sealing engagement with the lower surface of the buckle closure (10) to isolate the exhaust pipe (30) from the baking assembly (20).

2. Cover assembly according to claim 1, wherein the snap cover (10) is provided with a downwardly protruding second annular stop projection (11), the second sealing lip (62) being arranged obliquely upwards and being in sealing engagement and form-fitting with the outer side surface of the second annular stop projection (11).

3. Cover assembly according to claim 2, wherein the protruding dimension of the first annular stop protrusion (51) is larger than the protruding dimension of the second annular stop protrusion (11).

4. The cover assembly of claim 2, wherein the cover assembly comprises a cover,

the first annular limiting protrusion (51) comprises a first annular inner wall (511) and a first annular outer wall (512) which are obliquely arranged, and a first included angle a is formed between the first annular inner wall (511) and the first annular outer wall (512);

the second annular limiting protrusion (11) comprises a second annular inner wall (111) and a second annular outer wall (112) which are obliquely arranged, a second included angle b is formed between the second annular inner wall (111) and the second annular outer wall (112),

wherein the first included angle a is smaller than the second included angle b.

5. The cover assembly of claim 4, wherein the first included angle a is in a range that satisfies: 23 DEG is more than or equal to a and less than or equal to 33 DEG, and the range of the second included angle b meets the following conditions: b is more than or equal to 95 degrees and less than or equal to 105 degrees.

6. The cover assembly according to claim 4, wherein the first annular stop protrusion (51) further comprises a first circular arc portion (513) between the first annular inner wall (511) and the first annular outer wall (512), and the second annular stop protrusion (11) further comprises a second circular arc portion (113) between the second annular inner wall (111) and the second annular outer wall (112).

7. The cover assembly according to claim 1, wherein a third included angle c is formed between the first sealing lip (61) and the second sealing lip (62), the third included angle c being in a range that satisfies: c is more than or equal to 46 degrees and less than or equal to 57 degrees.

8. The lid assembly according to any one of claims 1 to 7, wherein the length L1 of the first sealing lip (61) is greater than the length L2 of the second sealing lip (62).

9. The cover assembly of claim 8, wherein the extent of the length L1 of the first sealing lip (61) is such that: 7.5 mm.ltoreq.L1.ltoreq.10.5 mm, the length L2 of the second sealing lip (62) ranging from: l2 is more than or equal to 4mm and less than or equal to 8mm.

10. The cover assembly according to claim 2, wherein the stopper portion comprises a first stopper lip (63) and a second stopper lip (64), the first stopper lip (63) being sandwiched between the second annular stopper projection (11) and the stopper ring (52), a receiving recess (65) for receiving the stopper ring (52) being formed between the first stopper lip (63) and the second stopper lip (64).

11. Cap assembly according to claim 10, wherein the first limiting lip (63) is in sealing engagement with the inner side of the first annular limiting projection (51) and/or the second limiting lip (64) is arranged obliquely upwards and in sealing engagement with the inner side of the second annular limiting projection (11).

12. The cover assembly according to claim 10, wherein the second annular limiting protrusion (11) and the first annular limiting protrusion (51) are arranged in a staggered manner, and the bottom of the second annular limiting protrusion (11) is located between the top of the first annular limiting protrusion (51) and the limiting ring (52).

13. The cover assembly according to any one of claims 2 to 6, wherein a sinking table portion (12) protruding downwards is arranged on the buckle cover (10), the sinking table portion (12) is arranged on the inner side of the second annular limiting protrusion (11), the baking assembly (20) is arranged at the sinking table portion (12), the sinking table portion (12) comprises a bottom plate (121) and a side plate (122) connected to the periphery of the bottom plate (121), and the vent holes (13) are formed in the bottom plate (121) and the side plate (122).

14. Cover assembly according to claim 13, wherein the height of the counter part (12) is greater than the height of the second annular stop protrusion (11).

15. The cover assembly according to claim 1, further comprising a connection assembly (70), wherein the connection assembly (70) comprises a fixing portion (71) penetrating through the buckle cover (10) and a connecting portion (72) penetrating through the sealing cover (50), and the connecting portion (72) is in plug connection with the fixing portion (71).

16. The lid assembly according to claim 8, further comprising a second sealing portion (80) provided at an outer periphery of the seal cap (50), the second sealing portion (80) being provided outside the first sealing portion (60), the second sealing portion (80) comprising a first lip (81) extending upward and a second lip (82) extending downward, a connection recess (83) being provided between the first lip (81) and the second lip (82), the seal cap (50) being provided in the connection recess (83).

17. The cover assembly according to claim 9, wherein the sealing cover (50) is further provided with a gas passing hole (53), and the gas passing hole (53) is located outside the first annular limiting protrusion (51).

18. The lid assembly of any one of claims 1 to 7,

the baking assembly (20) comprises a cover body (21), a heating piece (22), a fan blade (23) and a motor assembly (24) for driving the fan blade (23) to rotate, the cover body (21) is arranged above the buckle closure (10) and is attached to the buckle closure (10), the middle part of the cover body (21) protrudes upwards to form an accommodating space (25) between the cover body (21) and the buckle closure (10), the heating piece (22) and the fan blade (23) are both arranged in the accommodating space (25), and the motor assembly (24) is arranged above the cover body (21);

the cover body assembly further comprises a surface cover (90), and the surface cover (90) is covered on the buckle cover (10) and the baking assembly (20).

19. A cooking appliance comprising a pot and a lid assembly for covering the pot, wherein the lid assembly is as claimed in any one of claims 1 to 18.