Sealing ring and cooking appliance

Abstract

A cooking appliance (1000), comprising a container cover (200), a cooking body (300), and a sealing ring (100) arranged therebetween. The cooking body (300) comprises a cooking cavity (300a), a bearing surface (310) located above the cooking cavity (300a), and a limiting surface (320) located above the bearing surface (310); the side wall surface of the cooking cavity (300a) comprises first wall surfaces (3011) arranged opposite to each other in a first direction, second wall surfaces (3012) arranged opposite to each other in a second direction, and first corner surfaces (3013) connected between the first wall surfaces (3011) and the second wall surfaces (3012); the first corner surfaces (3013) are arc surfaces; the limiting surface (320) comprises first sub-surfaces (321) arranged opposite to each other in the first direction, second sub-surfaces (322) arranged opposite to each other in the second direction, and second corner surfaces (323) connected between the first sub-surfaces (321) and the second sub-surfaces (322); the second corner surfaces (323) are arc surfaces; and the radius of the first corner surface (3013) is greater than the radius of the second corner surface (323). The cooking appliance can improve the sealing effect between the sealing ring and the cooking body, so that the pressure in the cooking body is rapidly increased, the cooking speed is increased, and the cooking effect is improved.

Description

A sealing ring and cooking utensil

[0001] Cross-reference to related applications

[0002] The present disclosure is based on a Chinese patent application No. 202422199267.X, filed on September 6, 2024, entitled "A sealing ring and cooking utensil", and claims priority to the above-mentioned Chinese patent application, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of cooking, in particular to a sealing ring and cooking utensil. BACKGROUND

[0004] In related technology, a square cooking utensil includes a cooking body and a container cover, and the shape of the cooking cavity is square. During pressure cooking, the sealing ring is lifted upward with the container cover under the pressure in the cooking cavity, which reduces the sealing effect between the sealing ring and the cooking body. SUMMARY

[0005] To solve the problems in related technology, the embodiments of the present disclosure aim to provide a sealing ring and cooking utensil, which can improve the sealing effect between the cooking body and the container cover, accelerate the cooking speed, and improve the cooking effect.

[0006] The technical solutions of the embodiments of the present disclosure are implemented as follows:

[0007] The first aspect of the embodiments of the present disclosure provides a sealing ring, which includes:

[0008] A first sealing member, a projection area of the first sealing member along an axial direction of the first sealing member is in the shape of a square ring, and the first sealing member is used for sealing with a bearing surface of the cooking utensil.

[0009] A second sealing member connected to an inner side of the first sealing member, the second sealing member is arranged around the first sealing member along a circumferential direction of the first sealing member, and the second sealing member at least partially protrudes from one side of the first sealing member along the axial direction of the first sealing member, and the second sealing member is used for sealing with a side wall surface of a cooking cavity of the cooking utensil.

[0010] In some embodiments, a bottom of the first sealing member is formed with at least two sealing rings, and the at least two sealing rings are arranged at intervals along an inner-outer direction of the first sealing member, and the second sealing member is located on an inner side of the sealing rings.

[0011] In some embodiments, the first sealing member has a target surface on one side of the first sealing member in the axial direction of the first sealing member, the sealing ring protrudes from the target surface, and the maximum distance between the sealing ring and the target surface in the axial direction of the first sealing member is less than the maximum distance between the second sealing member and the target surface.

[0012] In some embodiments, the first sealing member comprises:

[0013] a first wall, a projection area of the first wall in the axial direction of the first wall is in the shape of a square ring;

[0014] a second wall located on the inner side of the first wall, the first wall is connected with the second wall at opposite ends in the axial direction of the first wall, the first wall and the second wall enclose a receiving cavity for receiving the edge of the container cover, a projection area of the receiving cavity in the axial direction of the first wall is in the shape of a square ring, the second sealing member is connected with the second wall at one end, and the second sealing member is located on the side of the second wall away from the receiving cavity in the axial direction of the first wall.

[0015] In some embodiments, the bottom of the first sealing member is formed with at least two sealing rings, the at least two sealing rings are arranged in the direction from the inside to the outside of the first sealing member, the second sealing member is located on the inner side of the sealing ring, the sealing ring is located at one end of the first wall in the axial direction of the first wall, and at least one of the sealing rings is arranged across the first wall and the second wall.

[0016] In some embodiments, the outer side surface of the second sealing member comprises a first surface and a second surface connected with each other, the first surface is located on the side of the second surface away from the first sealing member in the axial direction of the first sealing member, the cross section of the second surface is an arc, and the cross section of the first surface is a straight line.

[0017] In some embodiments, the first sealing member comprises a first sub-sealing member arranged oppositely in a first direction, a second sub-sealing member arranged oppositely in a second direction, and a third sub-sealing member connected between each adjacent first sub-sealing member and second sub-sealing member, the width of the first sub-sealing member and the width of the second sub-sealing member are both less than the width of the third sub-sealing member.

[0018] In some embodiments, the inner side surface and the outer side surface of the third sub-sealing member are both in the shape of a circular arc, and the radius of the outer side surface of the third sub-sealing member is less than the radius of the inner side surface of the third sub-sealing member.

[0019] The sealing ring provided by the embodiments of the present disclosure is provided with a first sealing member and a second sealing member, the first sealing member can play a sealing role between the cooking main body and the sealing cover in the up-down direction, and the second sealing member can seal the cooking main body in the horizontal direction.

[0020] The second aspect of the embodiments of the present disclosure provides a cooking appliance, comprising:

[0021] A container cover;

[0022] The sealing ring of any one of the above, the first sealing member is connected with the container cover;

[0023] A cooking main body having a cooking cavity and a bearing surface located above the cooking cavity, the bearing surface is arranged transversely to the side wall surface of the cooking cavity;

[0024] A locking mechanism mounted on the cooking main body and / or the container cover, the locking mechanism is used for locking or unlocking the cooking main body and the container cover;

[0025] The first sealing member is used for sealing contact with the bearing surface when the locking mechanism is in the locked state, or the second sealing member is used for sealing contact with the side wall surface of the cooking cavity when the locking mechanism is in the locked state.

[0026] In some embodiments, the locking mechanism and the cooking main body clamp the container cover in the up-down direction to lock the cooking main body and the container cover.

[0027] In some embodiments, the locking mechanism is a slider movably mounted on the cooking main body, the slider is used to move at least partially above the container cover to clamp the container cover partially between the slider and the cooking main body, and the slider is used to move away from the container cover to unlock the cooking main body and the container cover.

[0028] In some embodiments, the first sealing member comprises first sub-sealing members arranged oppositely in a first direction, second sub-sealing members arranged oppositely in a second direction, and third sub-sealing members connected between each adjacent first sub-sealing member and second sub-sealing member, the width of the first sub-sealing member and the width of the second sub-sealing member are both smaller than the width of the third sub-sealing member.

[0029] In some embodiments, the inner side surface and the outer side surface of the third sub-sealing member are both circular arc shapes, and the radius of the outer side surface of the third sub-sealing member is smaller than the radius of the inner side surface of the third sub-sealing member.

[0030] In some embodiments, the cooking body has a cooking cavity, a bearing surface located above the cooking cavity, and a limiting surface located above the bearing surface, a side wall surface of the cooking cavity includes a first wall surface oppositely arranged along a first direction, a second wall surface oppositely arranged along a second direction, and a first corner surface connected between the first wall surface and the second wall surface, the first corner surface is a circular arc surface, the limiting surface includes a first sub-surface oppositely arranged along the first direction, a second sub-surface oppositely arranged along the second direction, and a second corner surface connected between the first sub-surface and the second sub-surface, the second corner surface is a circular arc surface, and a radius of the first corner surface is greater than a radius of the second corner surface.

[0031] In some embodiments, an inner edge line of the bearing surface is in a circular arc shape, an outer edge line of the bearing surface is in a circular arc shape, a radius of the inner edge line is greater than a radius of the outer edge line, and the bearing surface is a plane.

[0032] In some embodiments, an inner edge line at a corner of the bearing surface is in a circular arc shape, an outer edge line at the corner of the bearing surface is in a circular arc shape, a radius of the inner edge line is greater than a radius of the outer edge line, and the bearing surface is a plane.

[0033] A third aspect of the embodiments of the present disclosure provides a cooking appliance, comprising:

[0034] A container cover;

[0035] The sealing ring as described above, the first sealing member is connected with the container cover;

[0036] A cooking body having a cooking cavity and a bearing surface located above the cooking cavity, the bearing surface is cross-arranged with a side wall surface of the cooking cavity;

[0037] A locking mechanism mounted on the cooking body and / or the container cover, the locking mechanism is used for locking or unlocking the cooking body and the container cover;

[0038] The first sealing member is used for sealing contact with the bearing surface when the locking mechanism is in a locked state, or the second sealing member is used for sealing contact with the side wall surface of the cooking cavity when the locking mechanism is in the locked state; the cooking body further comprises an auxiliary sealing surface surrounding an outer side of the bearing surface and located above the bearing surface, and a sealing ring spanning the first wall and the second wall is in sealing contact with the auxiliary sealing surface when the locking mechanism is in the locked state.

[0039] In some embodiments, the auxiliary sealing surface includes a third surface and a fourth surface, the third surface is connected between the fourth surface and the bearing surface along an up-down direction, a cross line of the third surface is an arc line, and a cross line of the fourth surface is a straight line.

[0040] The cooking utensil provided by the embodiments of the present disclosure has the same beneficial effects as the sealing ring described above. BRIEF DESCRIPTION OF DRAWINGS

[0041] Fig. 1 is a structural schematic diagram of a cooking utensil according to an embodiment of the present disclosure;

[0042] Fig. 2 is another structural schematic diagram of the cooking utensil shown in Fig. 1;

[0043] Fig. 3 is a partial structural schematic diagram (with the outer pot hidden) of the cooking utensil shown in Fig. 1;

[0044] Fig. 4 is an enlarged view of A in Fig. 3;

[0045] Fig. 5 is a structural schematic diagram of a sealing ring and a container cover according to an embodiment of the present disclosure;

[0046] Fig. 6 is a structural schematic diagram of a sealing ring according to another embodiment of the present disclosure;

[0047] Fig. 7 is a structural schematic diagram of a cooking body and a locking mechanism according to an embodiment of the present disclosure;

[0048] Fig. 8 is an enlarged view of B in Fig. 7. DETAILED DESCRIPTION

[0049] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and do not limit the present disclosure.

[0050] In the specific embodiments, each specific technical feature described can be combined in any suitable manner without contradiction, for example, different combinations of specific technical features can form different embodiments and technical solutions. In order to avoid unnecessary repetition, various possible combinations of each specific technical feature in the present disclosure are not described again.

[0051] In the following description, the terms "first", "second", "..." only distinguish different objects and do not mean that there is the same or relationship between the objects. It should be understood that the orientation description "upper", "lower", "outer", "inner" are the orientation of the normal use state, which can be the left and right direction of the normal use state or not.

[0052] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. "Multiple" means greater than or equal to two.

[0053] In the related art, cooking utensils mainly have two types of circular and square. Among them, the cooking utensils with pressure cooking function are currently generally circular. The inner container of the circular cooking utensil is limited by its shape and is mainly suitable for small-volume or regular-shaped food materials, such as cut vegetables, meat blocks, etc. For large-volume and long-strip-shaped food materials, such as whole chicken, duck, fish, large beef steaks, etc., the circular cooking utensil is not suitable. Since the square cooking utensil has a frame with edges and corners, especially if the sealing ring cannot effectively fit the joint position of the two edges, a complete sealing problem may occur. The sealing ring is lifted up under the pressure in the cooking cavity, which reduces the sealing between the sealing ring and the cooking main body. Therefore, the square cooking utensil is basically pressureless, such as slow cooker, electric chafing dish, etc. The cooking time is relatively long, and the square cooking utensil can meet more cooking scenes and be suitable for different types of food materials. The cooking without sealing cannot fully extract the nutrients of the food, which leads to nutrient loss.

[0054] Therefore, referring to FIGS. 1-6, the present disclosure provides a cooking utensil 1000 that can be used for high-pressure cooking. The present disclosure also provides a sealing ring 100 that can be applied to the cooking utensil 1000, such as a square cooking utensil 1000, to improve the sealing effect, speed up the cooking speed, and improve the cooking effect. Referring to FIGS. 1-4, the sealing ring 100 includes a first sealing member 10 and a second sealing member 20. The first sealing member 10 has a square ring shape in the projection area along the axial direction of the first sealing member 10, and the first sealing member 10 is used to seal with the bearing surface 310 of the cooking utensil 1000. The second sealing member 20 is connected to the inner side of the first sealing member 10 and is arranged around the circumference of the first sealing member 10. The second sealing member 20 at least partially protrudes from one side of the first sealing member 10 along the axial direction of the first sealing member 10, and the second sealing member 20 is used to seal with the side wall surface of the cooking cavity 300a of the cooking utensil 1000.

[0055] The first sealing member 10 is a square ring that is sleeved around the circumference of the container cover 200, and the first sealing member 10 is adapted to the shape of the square container cover 200 to achieve the sealing effect. The axial direction refers to the cross-sectional direction perpendicular to the circumference of the square ring.

[0056] The cooking utensil 1000 has a square-shaped container cover 200 and a cooking main body 300 for containing food materials, the container cover 200 is covered on the cooking main body 300 to form a closed cooking cavity 300a, and a sealing ring 100 is arranged between the container cover 200 and the cooking main body 300 to seal, so that the cooking utensil 1000 can quickly increase the temperature and pressure in the cooking main body 300 during cooking, and improve the cooking efficiency.

[0057] For example, referring to FIG. 3, the cooking main body 300 can include an outer pot 330 and an inner liner 340, the outer pot 330 is used to mount the inner liner 340 and mount a heating device for heating the inner liner 340. The outer pot 330 is formed with a mounting cavity, and the inner liner 340 is located in the mounting cavity of the outer pot 330, and the inner liner 340 is formed with a cooking cavity 300a for containing food materials.

[0058] The cooking utensil 1000 generates steam in the cooking cavity 300a of the cooking main body 300 during cooking, the steam gradually increases, and the pressure in the cooking cavity 300a of the cooking main body 300 gradually increases to lift the container cover 200, and the sealing effect of the sealing ring 100 is weakened. In order to improve the sealing performance of the sealing ring, the sealing ring 100 provided by the embodiment of the present disclosure is provided with a first sealing element 10 and a second sealing element 20, the first sealing element 10 can play a sealing role between the cooking main body 300 and the sealing cover in the up-down direction, and the second sealing element 20 can seal the cooking main body 300 in the horizontal direction.

[0059] Specifically, referring to FIG. 4, when not yet cooking, the first sealing element 10 is pressed on the bearing surface 310, and the second sealing element 20 is attached to the side wall of the cooking main body 300. The side wall of the cooking main body 300 refers to the inner side wall of the cooking cavity 300a. In the initial stage of cooking, the amount of steam generated by heating the cooking is not enough to lift the container cover 200, and the first sealing element 10 is pressed on the bearing surface 310 of the cooking main body 300 by gravity or an external locking mechanism 400 to play a sealing role between the cooking main body 300 and the sealing cover. At this time, even if the steam leaks from between the second sealing element 20 and the cooking main body 300, it cannot further leak from between the first sealing element 10 and the cooking main body 300. In this way, as the heating time of the cooking main body 300 increases, the inside of the cooking main body 300 can be kept in a sealed state, and the pressure increases rapidly.

[0060] As the heating time of the cooking main body 300 further increases, the second sealing element 20 can abut against the side wall of the cooking main body 300 to seal under the action of the pressure accumulated inside. In this way, the first sealing element 10 and the second sealing element 20 can play a two-stage sealing effect on the cooking main body 300 during cooking, so that the pressure in the cooking main body 300 increases rapidly, the cooking speed is accelerated, and the cooking effect is improved.

[0061] In some embodiments, referring to FIG. 4, the bottom of the first sealing member 10 is formed with at least two sealing rings 11, which are arranged in the inner-outer direction of the first sealing member 10, and the second sealing member 20 is located on the inner side of the sealing ring 11.

[0062] The inner direction of the first sealing member 10 refers to the direction towards the cooking cavity 300a inside the cooking body 300, and the outer direction of the first sealing member 10 refers to the direction away from the cooking cavity 300a inside the cooking body 300.

[0063] By arranging the sealing ring 11, the contact area between the sealing ring 11 and the bearing surface 310 of the cooking body 300 can be reduced, and the sealing effect can be improved. Moreover, by arranging multiple sealing rings 11, a multiple sealing effect can be achieved, and the sealing effect can be further improved.

[0064] In some embodiments, referring to FIG. 4, the first sealing member 10 has a target surface 12 on the side facing the second sealing member 20 in the axial direction of the first sealing member 10, and the sealing ring 11 protrudes from the target surface 12. In the axial direction of the first sealing member 10, the maximum distance between the sealing ring 11 and the target surface 12 is less than the maximum distance between the second sealing member 20 and the target surface 12.

[0065] The maximum distance between the second sealing member 20 and the target surface 12 refers to the distance between the bottom end of the second sealing member 20 in the up-down direction and the target surface 12. The length dimension of the second sealing member 20 in the up-down direction is greater than the thickness of the sealing ring 11 in the up-down direction, so that the second sealing member 20 can be fitted with at least part of the side wall of the cooking body 300 to achieve a sealing effect.

[0066] In some embodiments, referring to FIG. 4, the first sealing member 10 includes a first wall 13 and a second wall 14. The projection area of the first wall 13 in the axial direction of the first wall 13 is in the shape of a square ring; the second wall 14 is located on the inner side of the first wall 13, and the opposite ends of the first wall 13 in the axial direction of the first wall 13 are connected with the second wall 14. The first wall 13 and the second wall 14 surround to form a receiving cavity 10a for accommodating the edge of the container cover 200, and the projection area of the receiving cavity 10a in the axial direction of the first wall 13 is in the shape of a square ring. The second sealing member 20 is connected with one of the second walls 14, and the second sealing member 20 is located on the side corresponding to the second wall 14 away from the receiving cavity 10a in the axial direction of the first wall 13.

[0067] The first wall 13 and the second wall 14 are arranged to form the receiving cavity 10a towards the cooking cavity 300a inside the cooking body 300, and the outer periphery of the container cover 200 is located in the receiving cavity 10a. In this way, the sealing member and the container cover 200 can be fitted, so that the sealing member can be closely fitted on the surface of the container cover 200 to achieve a sealing effect between the cooking body 300 and the container cover 200.

[0068] In some embodiments, referring to FIG. 4, the bottom of the first sealing member 10 is formed with at least two sealing rings 11, the at least two sealing rings 11 are arranged in the inner-outer direction of the first sealing member 10, the second sealing member 20 is located on the inner side of the sealing ring 11, and the sealing ring 11 is located at one end of the first wall 13 in the axial direction of the first wall 13, and the at least one sealing ring 11 is arranged across the first wall 13 and the second wall 14.

[0069] The cooking body 300 is further formed with an auxiliary sealing surface 320 arranged at a corner of the bearing surface 310, and the auxiliary sealing surface 320 is arranged opposite to the first wall 13. The at least one sealing ring 11 is arranged at the corner position of the first wall 13 and the second wall 14, that is, the sealing ring 11 can play a sealing role between the auxiliary sealing surface 320 and the first wall 13, and can also play a sealing role between the second sealing surface and the bearing surface 310, so as to improve the sealing effect.

[0070] In some embodiments, referring to FIG. 4, the outer side surface of the second sealing member 20 includes a first surface 21 and a second surface 22 connected to each other, the first surface 21 is located on the side of the second surface 22 away from the first sealing member 10 in the axial direction of the first sealing member 10, the cross section of the second surface 22 is an arc, and the cross section of the first surface 21 is a straight line.

[0071] The side wall and the bearing surface 310 of the cooking body 300 are formed with a corner, and the cross section of the corner is an arc. The cross section of the first surface 21 is a straight line, so that the first surface 21 is matched with the side wall, and the cross section of the second surface 22 is an arc, and the corner formed by the first surface 21 and the second surface 22 is also an arc. In this way, the fit between the second sealing member 20 and the cooking body 300 can be improved, and the sealing effect can be improved. In some embodiments, referring to FIGS. 1-4, the cooking appliance 1000 includes a container cover 200, a cooking body 300, a locking mechanism 400, and the sealing ring 100 of any one of the above, the first sealing member 10 is connected with the container cover 200; the cooking body 300 has a cooking cavity 300a and a bearing surface 310 located above the cooking cavity 300a, and the bearing surface 310 is arranged intersecting with the side wall surface of the cooking cavity 300a; the locking mechanism 400 is used for locking or unlocking the cooking body 300 and the container cover 200; the first sealing member 10 is used for sealing contact with the bearing surface 310 when the locking mechanism 400 is in a locked state, or the second sealing member 20 is used for sealing contact with the side wall surface of the cooking cavity 300a when the locking mechanism 400 is in a locked state.

[0072] The locking mechanism 400 can be mounted on the cooking main body 300 or the container cover 200, or mounted on the cooking main body 300 and the container cover 200. The locking mechanism 400 can lock the cooking main body 300 and the container cover 200. In the initial stage of cooking, the locking mechanism 400 can reduce the possibility that the container cover 200 is lifted to affect the sealing effect of the cooking cavity 300a.

[0073] In some embodiments, the locking mechanism 400 and the cooking main body 300 clamp the container cover 200 in the up-down direction to lock the cooking main body 300 and the container cover 200.

[0074] The locking mechanism 400 can limit the container cover 200, for example, press the upper end of the container cover 200 in the up-down direction, so that the container cover 200 presses the first sealing member 10 on the bearing surface 310. In the initial stage of cooking, the first sealing member 10 plays a sealing effect between the container cover 200 and the cooking main body 300. As the pressure in the cooking cavity 300a gradually increases, the second sealing member 20 is attached to the side wall surface under the pressure in the cooking cavity 300a to achieve the sealing effect.

[0075] In some embodiments, referring to FIG. 4, the locking mechanism 400 is a sliding block 410 movably mounted on the cooking main body 300. The sliding block 410 is used to at least partially move above the container cover 200 to partially clamp the container cover 200 between the sliding block 410 and the cooking main body 300, and the sliding block 410 is used to move away from the container cover 200 to unlock the cooking main body 300 and the container cover 200.

[0076] By moving the sliding block 410 above the container cover 200, the container cover 200 can be limited in the up-down direction. In the initial stage of cooking, the possibility that the container cover 200 is lifted by the pressure in the cooking cavity 300a can be reduced. At the same time, the sliding block 410 is pressed on the container cover 200, so that the first sealing member 10 is pressed on the bearing surface 310 to achieve the sealing effect. After cooking, the sliding block 410 is moved to release the limiting effect on the container cover 200, which is convenient for operation.

[0077] In some embodiments, referring to FIG. 6, the first sealing member 10 includes first sub-sealing members 101 arranged opposite in a first direction, second sub-sealing members 102 arranged opposite in a second direction, and third sub-sealing members 103 connected between each adjacent first sub-sealing member 101 and second sub-sealing member 102. The width of the first sub-sealing member 101 and the width of the second sub-sealing member 102 are both less than the width of the third sub-sealing member 103.

[0078] The third sub-seal 103 is adapted to the first corner surface 3013 and the second corner surface 323 to improve the sealing effect. The third sub-seal 103 is prone to deformation during cooking, and the width of the first sub-seal 101 and the width of the second sub-seal 102 are both less than the width of the third sub-seal 103, which can increase the sealing area and reduce air leakage.

[0079] In some embodiments, the inner side surface and the outer side surface of the third sub-seal 103 are both circular arcs, and the radius of the outer side surface of the third sub-seal 103 is less than the radius of the inner side surface of the third sub-seal 103.

[0080] In this way, the first corner surface 3013 has a larger radius, and the contact area between the first corner surface 3013 and the third sub-seal 103 is larger, which is conducive to better sealing; the second corner surface 323 has a smaller radius, which can lengthen the flow channel length at the corner, increase the flow resistance, improve the sealing performance, rapidly increase the pressure in the cooking main body 300, speed up the cooking speed, and improve the cooking effect.

[0081] In some embodiments, referring to FIGS. 7-8, the cooking main body 300 has a cooking cavity 300a, a bearing surface 310 located above the cooking cavity 300a, and a limiting surface 320 located above the bearing surface 310. The side wall surface 301 of the cooking cavity 300a includes a first wall surface 3011 arranged opposite in a first direction, a second wall surface 3012 arranged opposite in a second direction, and a first corner surface 3013 connected between the first wall surface 3011 and the second wall surface 3012. The first corner surface 3013 is a circular arc surface. The limiting surface 320 includes a first sub-surface 321 arranged opposite in the first direction, a second sub-surface 322 arranged opposite in the second direction, and a second corner surface 323 connected between the first sub-surface 321 and the second sub-surface 322. The second corner surface 323 is a circular arc surface. The radius of the first corner surface 3013 is greater than the radius of the second corner surface 323.

[0082] The first corner surface 3013 has a larger radius, and the contact area between the first corner surface 3013 and the sealing ring 100 is larger, which is conducive to better sealing; the second corner surface 323 has a smaller radius, which can lengthen the flow channel length at the corner, increase the flow resistance, improve the sealing performance, rapidly increase the pressure in the cooking main body 300, speed up the cooking speed, and improve the cooking effect.

[0083] In some embodiments, the inner edge line of the bearing surface 310 is in the shape of a circular arc, the outer edge line of the bearing surface 310 is in the shape of a circular arc, the radius of the inner edge line is greater than the radius of the outer edge line, and the bearing surface 310 is a plane.

[0084] The radius of the inner edge line of the bearing surface 310 is greater than the radius of the outer edge line, which helps to improve the sealing effect of the sealing ring 100 of the cooking body 300, lengthen the flow path length at the corner, increase the flow resistance, rapidly increase the pressure in the cooking body 300, accelerate the cooking speed, and improve the cooking effect.

[0085] In some embodiments, the shape of the inner edge line at the corner of the bearing surface 310 is a circular arc, the shape of the outer edge line at the corner of the bearing surface 310 is a circular arc, the radius of the inner edge line is greater than the radius of the outer edge line, and the bearing surface 310 is a plane.

[0086] In this way, the radius of the inner edge line at the corner of the bearing surface 310 is greater than the radius of the outer edge line at the corner, which helps to improve the sealing effect of the sealing ring 100 of the cooking body 300, lengthen the flow path length at the corner, increase the flow resistance, rapidly increase the pressure in the cooking body 300, accelerate the cooking speed, and improve the cooking effect.

[0087] In some embodiments, referring to FIGS. 1-6, the cooking appliance 1000 includes a container cover 200, a cooking body 300, a locking mechanism 400, and the above-described sealing ring 100. The first sealing element 10 is connected to the container cover 200. The cooking body 300 has a cooking cavity 300a and a bearing surface 310 located above the cooking cavity 300a. The bearing surface 310 is arranged transversely to the side wall surface of the cooking cavity 300a. The locking mechanism 400 is installed on the cooking body 300 and / or the container cover 200, and is used to lock or unlock the cooking body 300 and the container cover 200. The first sealing element 10 is used to be in sealing contact with the bearing surface 310 when the locking mechanism 400 is in a locked state, or the second sealing element 20 is used to be in sealing contact with the side wall surface of the cooking cavity 300a when the locking mechanism 400 is in the locked state. The cooking body 300 further includes an auxiliary sealing surface 320 surrounding the outside of the bearing surface 310 and located above the bearing surface 310. The sealing ring 11 spanning the first wall 13 and the second wall 14 is in sealing contact with the auxiliary sealing surface 320 when the locking mechanism 400 is in the locked state.

[0088] In this way, the sealing ring 11 can play a sealing role between the auxiliary sealing surface 320 and the first wall 13, and can also play a sealing role between the second sealing surface and the bearing surface 310, so as to improve the sealing effect.

[0089] In some embodiments, the auxiliary sealing surface 320 comprises a third surface 321 and a fourth surface 322, the third surface is connected between the fourth surface 322 and the bearing surface 310 in the up-down direction, the cross section of the third surface 321 is an arc, and the cross section of the fourth surface 322 is a straight line. The auxiliary sealing surface 320 and the bearing surface 310 form a corner, and the cross section of the corner is an arc. The cross section of the third surface is an arc, and the corner formed by the third surface 321 and the fourth surface 322 is also an arc, so that the sealing effect of the sealing ring 11 arranged between the first wall 13 and the second wall 14 can be improved. In the description of the present disclosure, the description of the terms "an embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present disclosure, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in the present disclosure and the features of different embodiments or examples without contradiction.

[0090] The above only describes the preferred embodiments of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art can make various modifications and changes to the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A sealing ring, comprising: a first sealing member, the first sealing member having a square ring shape in a projection area along an axial direction of the first sealing member, the first sealing member being configured to seal with a bearing surface of a cooking appliance; a second sealing member connected to an inner side of the first sealing member, the second sealing member being arranged around a circumferential direction of the first sealing member, the second sealing member being at least partially protruding from one side of the first sealing member along the axial direction of the first sealing member, the second sealing member being configured to seal with a sidewall surface of a cooking cavity of the cooking appliance.

2. The seal ring of claim 1, wherein, The first sealing member has at least two sealing rings formed at a bottom of the first sealing member, the at least two sealing rings being arranged at intervals along an inner-outer direction of the first sealing member, and the second sealing member is located at an inner side of the sealing rings.

3. The seal ring of claim 2, wherein, The first sealing member has a target surface at one side of the first sealing member along the axial direction of the first sealing member towards the second sealing member, the sealing rings protruding from the target surface, and a maximum distance between the sealing rings and the target surface along the axial direction of the first sealing member is less than a maximum distance between the second sealing member and the target surface.

4. The seal ring of claim 1, wherein, The first sealing member comprises: a first wall having a square ring shape in a projection area along an axial direction of the first wall; a second wall located at an inner side of the first wall, the first wall being connected with the second wall at opposite ends of the first wall along the axial direction of the first wall, the first wall and the second wall surrounding a receiving cavity configured to receive an edge of a container cover, the receiving cavity having a square ring shape in a projection area along the axial direction of the first wall, the second sealing member being connected with the second wall at one end, and the second sealing member being located at a side of the second wall away from the receiving cavity along the axial direction of the first wall.

5. The seal ring of claim 4, wherein, The first sealing member has at least two sealing rings formed at a bottom of the first sealing member, the at least two sealing rings being arranged at intervals along an inner-outer direction of the first sealing member, and the second sealing member is located at an inner side of the sealing rings, the sealing rings being located at one end of the first wall along the axial direction of the first wall, and at least one of the sealing rings being arranged across the first wall and the second wall.

6. The seal ring of any one of claims 1 to 5, wherein, An outer side surface of the second sealing member comprises a first surface and a second surface connected to each other, the first surface being located at a side of the second surface away from the first sealing member along the axial direction of the first sealing member, a cross section of the second surface being an arc, and a cross section of the first surface being a straight line.

7. The seal ring of claim 1, wherein, The first sealing member comprises first sub-sealing members arranged oppositely along a first direction, second sub-sealing members arranged oppositely along a second direction, and third sub-sealing members connected between each adjacent first sub-sealing member and second sub-sealing member, a width of the first sub-sealing member and a width of the second sub-sealing member being less than a width of the third sub-sealing member.

8. The seal ring of claim 7, wherein, An inner side surface and an outer side surface of the third sub-sealing member are both circular arcs, and a radius of the outer side surface of the third sub-sealing member is less than a radius of the inner side surface of the third sub-sealing member. 9.A cooking appliance, comprising: a container cover; a sealing ring according to any one of claims 1 to 8, the first sealing member being connected with the container cover. The cooking body has a cooking cavity and a bearing surface above the cooking cavity, and the bearing surface is arranged transversely to the side wall surface of the cooking cavity; The locking mechanism is installed on the cooking body and / or the container cover, and is used for locking or unlocking the cooking body and the container cover; The first seal is in sealing contact with the bearing surface when the locking mechanism is in the locked state, or the second seal is in sealing contact with the side wall surface of the cooking cavity when the locking mechanism is in the locked state.

10. The cooking appliance of claim 9, wherein, The locking mechanism and the cooking body clamp the container cover in the up-down direction to lock the cooking body and the container cover.

11. The cooking appliance of claim 10, wherein, The locking mechanism is a sliding block movably installed on the cooking body, and is used for moving at least partially above the container cover to clamp the container cover partially between the sliding block and the cooking body, and is used for moving away from the container cover to unlock the cooking body and the container cover.

12. The cooking appliance of claim 9, wherein, The first seal includes first sub-seals arranged oppositely in a first direction, second sub-seals arranged oppositely in a second direction, and third sub-seals connected between each adjacent first sub-seal and second sub-seal, and the width of each first sub-seal and second sub-seal is smaller than the width of each third sub-seal.

13. The cooking appliance of claim 12, wherein, The inner side surface and the outer side surface of the third sub-seal are both circular arcs, and the radius of the outer side surface of the third sub-seal is smaller than the radius of the inner side surface of the third sub-seal.

14. The cooking appliance of claim 12 or 13, wherein, The cooking body has a cooking cavity, a bearing surface above the cooking cavity, and a limiting surface above the bearing surface, the side wall surface of the cooking cavity includes first wall surfaces arranged oppositely in a first direction, second wall surfaces arranged oppositely in a second direction, and first corner surfaces connected between the first wall surfaces and the second wall surfaces, the first corner surfaces are circular arc surfaces, the limiting surface includes first sub-surfaces arranged oppositely in the first direction, second sub-surfaces arranged oppositely in the second direction, and second corner surfaces connected between the first sub-surfaces and the second sub-surfaces, the second corner surfaces are circular arc surfaces, and the radius of the first corner surfaces is greater than the radius of the second corner surfaces.

15. The cooking appliance of claim 12 or 13, wherein, The inner edge line of the bearing surface is in the shape of a circular arc, the outer edge line of the bearing surface is in the shape of a circular arc, the radius of the inner edge line is greater than the radius of the outer edge line, and the bearing surface is a plane.

16. The cooking appliance of claim 12 or 13, wherein, The inner edge line of the bearing surface corner is in the shape of a circular arc, the outer edge line of the bearing surface corner is in the shape of a circular arc, the radius of the inner edge line is greater than the radius of the outer edge line, and the bearing surface is a plane.

17. A cooking appliance, wherein, It includes: A container cover; The sealing ring according to claim 4 or 5, the first seal is connected with the container cover; The cooking body has a cooking cavity and a bearing surface above the cooking cavity, and the bearing surface is arranged transversely to the side wall surface of the cooking cavity; The locking mechanism is installed on the cooking body and / or the container cover, and is used for locking or unlocking the cooking body and the container cover; The first seal is in sealing contact with the bearing surface when the locking mechanism is in the locked state, or the second seal is in sealing contact with the side wall surface of the cooking cavity when the locking mechanism is in the locked state; the cooking body further comprises an auxiliary sealing surface surrounding the outside of the bearing surface and located above the bearing surface, and a sealing ring spanning between the first wall and the second wall is in sealing contact with the auxiliary sealing surface when the locking mechanism is in the locked state.

18. The cooking appliance of claim 17, wherein, The auxiliary sealing surface comprises a third surface and a fourth surface, the third surface is connected between the fourth surface and the bearing surface in the up-down direction, the cross section of the third surface is an arc, and the cross section of the fourth surface is a straight line.

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