CN107752742B

CN107752742B - Sealing ring on cover plate assembly, upper cover assembly and electric appliance

Info

Publication number: CN107752742B
Application number: CN201610682707.4A
Authority: CN
Inventors: 梅若愚; 陈炜杰; 何柏锋; 潘典国; 刘小凯; 周亚
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2016-08-17
Filing date: 2016-08-17
Publication date: 2023-06-09
Anticipated expiration: 2036-08-17
Also published as: CN107752742A

Abstract

The invention relates to a sealing ring on a cover plate assembly, the cover plate assembly, an upper cover assembly and an electric appliance, wherein the sealing ring comprises an installation part and a sealing part which are integrally connected, the longitudinal section of the installation part is in a 'gamma' -shape and is hermetically installed on one side surface of the cover plate assembly, and the sealing part extends out from one side surface of the cover plate assembly along the direction deviating from the cover plate assembly; when the cover plate component is buckled on the cooking vessel, the sealing part is abutted on the opening edge of the cooking vessel, and an elastic structure for reducing the extrusion deformation stress of the sealing part is arranged on one side surface of the sealing part, which is positioned outside the cooking vessel. According to the invention, the sealing part is of the V-shaped structure, the reinforcing rib is arranged on the inner side of the bending part of the V-shaped structure, and the elastic structure is arranged on the reinforcing rib, so that the rigidity of the sealing ring is enhanced, and meanwhile, the stress of the sealing ring in extrusion deformation is reduced, so that the sealing ring is easy to recover after being extruded.

Description

Sealing ring on cover plate assembly, upper cover assembly and electric appliance

Technical Field

The invention relates to the technical field of small household appliances, in particular to a sealing ring on a cover plate assembly, the cover plate assembly, an upper cover assembly and an electric appliance.

Background

In products such as current electric pressure cooker, electric rice cooker, because the structural design's of sealing washer problem leads to the comdenstion water that the in-process of cooking or condensation in-process produced to condense in the sealing washer easily, and the user uncaps back condensate water landing in the rice cooker shell cover, influences customer's experience effect, and is more serious, can arouse user's complaint because of the problem that water produced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a sealing ring on a cover plate assembly, the cover plate assembly, an upper cover assembly and an electric appliance aiming at the defects of the prior art.

The technical scheme for solving the technical problems is as follows: the sealing ring on the cover plate assembly comprises an installation part and a sealing part which are integrally connected, wherein the longitudinal section of the installation part is of a 'gamma' -shape and is hermetically installed on one side surface of the cover plate assembly, and the sealing part extends out from one side surface of the cover plate assembly along the direction deviating from the cover plate assembly; when the cover plate component is buckled on the cooking vessel, the sealing part is abutted on the opening edge of the cooking vessel, and an elastic structure for reducing the extrusion deformation stress of the sealing part is arranged on one side surface of the sealing part, which is positioned outside the cooking vessel.

The beneficial effects of the invention are as follows: according to the invention, the elastic structure is arranged on one side of the sealing part outside the cooking utensil, so that the stress of the sealing ring in extrusion deformation is reduced, and the sealing ring is easy to recover after being extruded.

On the basis of the technical scheme, the invention can be improved as follows.

Further, the elastic structure is an elastic notch formed on one side surface of the sealing part outside the cooking vessel.

The beneficial effects of adopting the further scheme are as follows: by arranging the elastic notch, the V-shaped structure bending part is simple to mold, and the stress of extrusion deformation at the V-shaped structure bending part is reduced.

Further, the elastic notch is an arc-shaped opening or a V-shaped opening formed by recessing on one side surface of the sealing part outside the sealing ring.

The beneficial effects of adopting the further scheme are as follows: the elastic notch structure is arranged to be the concave arc-shaped opening or the V-shaped opening, so that the elastic effect is good, and the molding is simple.

Further, the arc-shaped opening is an arc-shaped opening, and the radius of the arc-shaped opening is 0.5 mm-5 mm.

The beneficial effects of adopting the further scheme are as follows: through the reasonable setting of the radius of the circular arc opening, the elastic effect of the circular arc opening in the radius range is better, and the rigidity requirement of the sealing ring can be met.

Further, when the cover plate assembly is buckled on the cooking vessel, a reinforcing rib is arranged on one side of the sealing part, which is positioned outside the cooking vessel, and the elastic structure is arranged on the reinforcing rib.

The beneficial effects of adopting the further scheme are as follows: the elastic structure is arranged on the reinforcing rib, so that the rigidity and elasticity of the sealing part are moderate.

Further, the sealing part is of a V-shaped structure, and one end of the opening of the sealing part is integrally connected with the mounting part; when the cover plate assembly is buckled on the cooking vessel, one bent end of the sealing part is abutted against the open edge of the cooking vessel; the opening of the sealing part of the V-shaped structure faces to the outer side of the sealing ring; the reinforcing ribs are arranged at the bending part of one side of the sealing part, which is positioned outside the cooking vessel.

The beneficial effects of adopting the further scheme are as follows: the sealing part is arranged to be of the V-shaped structure, the reinforcing ribs are arranged on the inner sides of the bending parts of the V-shaped structure, and the elastic structures are arranged on the reinforcing ribs, so that the integral rigidity of the V-shaped structure is enhanced, meanwhile, the extrusion deformation stress of the sealing part is reduced, and when the cover plate component is buckled on a cooking utensil, the sealing ring is not easy to deform after extrusion, and the sealing effect is better; the opening of the V-shaped structure sealing part faces the outer side of the sealing ring, so that the sealing part is easier to restore when not being extruded.

Further, the reinforcing ribs are multiple and uniformly distributed around the central axis of the sealing ring; an included angle formed by connecting lines between two adjacent reinforcing ribs and the centers of the sealing rings is more than or equal to 10 degrees and less than or equal to 30 degrees.

The beneficial effects of adopting the further scheme are as follows: the plurality of reinforcing ribs are arranged and uniformly distributed around the central axis of the sealing ring, so that the uniformity of stress when the sealing part is in contact deformation is ensured; the rigidity and the deformability of the whole reinforcing rib are optimized by limiting the angle between every two reinforcing ribs.

Further, the width of the reinforcing ribs is 0.4 mm-2 mm.

The beneficial effects of adopting the further scheme are as follows: by reasonably setting the width of the reinforcing ribs, the problem that the rigidity is insufficient if the reinforcing ribs are too narrow and the elasticity is affected if the reinforcing ribs are too wide is avoided.

Further, the sealing part comprises a water diversion section and a pressure-bearing section positioned at the outer side of the water diversion section, and the water diversion section and the pressure-bearing section are annularly arranged around the central axis of the sealing ring; one end of the water diversion section is connected with the mounting part, the other end of the water diversion section is connected with one end of the pressure-bearing section and is abutted to the open edge of the cooking utensil, the pressure-bearing section extends towards a direction away from the central axis of the sealing ring, and the water diversion section and the pressure-bearing section form the V-shaped structure; the reinforcing rib is arranged on the outer side of the joint of the water diversion section and the pressure-bearing section.

Further, the reinforcing rib comprises a first reinforcing rib section formed by outwards radial protrusion of the water diversion section and a second reinforcing rib section formed by radial protrusion of the pressure-bearing section towards one side close to the water diversion section, and one end of the first reinforcing rib section close to the bending position is integrally connected with one end of the second reinforcing rib section close to the bending position; the arc-shaped opening or the V-shaped opening is formed at the joint of the first reinforcing rib section and the second reinforcing rib section.

Further, the arc-shaped opening or the V-shaped opening is positioned above or below the junction of the extension line of the outer convex surface of the first reinforcing rib and the extension line of the outer convex surface of the second reinforcing rib.

Further, an included angle between a central line of an included angle formed by the connecting line of the two ends of the water diversion section and the connecting line of the two ends of the pressure-bearing section and the central axis of the sealing ring in the upward direction is more than or equal to 0 degree and less than or equal to 90 degrees.

The beneficial effects of adopting the further scheme are as follows: the included angle between the central line of the included angle formed by the V-shaped structure and the central axis of the sealing ring is limited, so that the problem that the sealing effect is poor due to overlarge included angle is avoided, and the sealing ring is not easy to extrude.

Further, one side surface of the water diversion section, which is close to the central axis of the sealing ring, is a water diversion cambered surface or a water diversion inclined surface; and one end of the diversion cambered surface or the diversion inclined surface, which is far away from the cover body, is positioned right below or outside one end of the diversion cambered surface or the diversion inclined surface, which is close to the cover body.

The beneficial effects of adopting the further scheme are as follows: when the sealing part is abutted on the open edge of the cooking utensil, one side surface of the water diversion section in the cooking utensil is provided with a water diversion inclined surface or a water diversion cambered surface, so that condensed water can slide off from the sealing ring conveniently, the sealing ring is kept in a non-water state, and the phenomenon of water accumulation in the sealing ring due to steam condensation in the cooking process can be avoided; through setting the one end that diversion cambered surface or diversion inclined plane kept away from the apron subassembly to be located its one end that is close to the apron subassembly under or outside, can make the comdenstion water directly lean on self gravity along diversion inclined plane or diversion cambered surface landing, and the sealing washer easily washs.

Further, the diversion cambered surface is formed by the fact that the sealing ring is recessed towards the direction away from the central axis of the sealing ring.

The beneficial effects of adopting the further scheme are as follows: by setting the diversion cambered surface to be concave, compared with the diversion cambered surface formed by the bulge, the diversion effect and the sealing effect are better.

Further, the sealing part further comprises a sealing connecting section, one end of the sealing connecting section is connected to the connecting part of the water diversion section and the mounting part, and the other end of the sealing connecting section extends towards the direction close to the central axis of the sealing ring and is in sealing compression joint with the cover plate assembly.

The beneficial effects of adopting the further scheme are as follows: through setting up sealed linkage segment, the annular gap is sheltered from outside the interior sealing environment of cooking utensil on the apron with sealed crimping of sealed linkage segment, avoids the vapor in the cooking utensil to enter into between lid and the apron and causes ponding phenomenon.

Further, the hardness of the sealing portion is 30 to 75A.

The beneficial effects of adopting the further scheme are as follows: since the thickness of the sealing part is inversely proportional to the hardness, the higher the hardness is, the smaller the deformation of the sealing part is, which is unfavorable for sealing; and under the same hardness, the thickness of the steel plate is thinned, so that the deformation amount of the steel plate can be increased; in this embodiment, the hardness of the sealing portion is reasonably limited, so that the deformation of the sealing portion can be reasonably controlled by the thickness change of the sealing portion.

The utility model provides a apron subassembly, includes apron body, annular structure's clamp plate and sealing washer as above, the clamp plate crimping be in on the circumference edge of apron body and with form an annular gap between the apron body, the installation department sealing crimping is in annular gap is interior and be located the interior ring side of clamp plate, sealing portion follows annular gap is followed deviating from apron subassembly's direction extends and with annular gap seals and shelters from.

The beneficial effects of the invention are as follows: according to the cover plate assembly, the elastic structure is arranged on the outer side of the joint of the sealing ring and the open edge of the cooking utensil, so that the stress of extrusion deformation of the sealing ring is reduced, and the sealing ring is easy to recover after being extruded.

An upper cover assembly comprises a cover body and the cover plate assembly, wherein the other side surface of the cover plate assembly is connected to the cover body.

The beneficial effects of the invention are as follows: according to the upper cover assembly, the elastic structure is arranged on the outer side of the joint of the sealing ring and the open edge of the cooking utensil, so that the stress of extrusion deformation of the sealing ring is reduced, and the sealing ring is easy to recover after being extruded.

An appliance comprising a cooking vessel and a cover assembly as described above, the cover assembly being mounted at an open end of the cooking vessel; when the upper cover component is buckled on the cooking vessel, the sealing part is in sealing and pressing connection with the opening edge of the cooking vessel.

The beneficial effects of the invention are as follows: the invention has compact structure, good sealing effect and good customer experience effect.

Drawings

FIG. 1 is a schematic cross-sectional view of a connection relationship between a seal ring and a cover plate assembly, a cover plate and an inner pan according to an embodiment of the invention;

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

FIG. 3 is a schematic cross-sectional view of a seal ring according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the portion B in FIG. 3;

FIG. 5 is a schematic top view of a seal ring according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of one embodiment of a seal ring according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of the portion C in FIG. 6;

FIG. 8 is a schematic cross-sectional view of another embodiment of a seal ring according to an embodiment of the present invention;

fig. 9 is an enlarged schematic view of the portion D in fig. 8.

In the drawings, the list of components represented by the various numbers is as follows:

1. a cover plate assembly; 11. a pressing plate; 12. a cover plate body; 13. an annular gap; 2. a seal ring; 21. a mounting part; 22. a sealing part; 221. a water diversion section; 222. sealing the connecting section; 224. a pressure-bearing section; 225. drainage surface; 226. reinforcing ribs; 227. a first stiffener section; 228. a second stiffener section; 229. an elastic notch; 3. a cooking vessel; 31. an open edge.

Detailed Description

The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.

Example 1

As shown in fig. 1 to 9, a seal ring on a cover plate assembly of the present embodiment includes an integrally connected mounting portion 21 and a sealing portion 22, wherein a longitudinal section of the mounting portion 21 is of a 'f' shape and is mounted on one side surface of the cover plate assembly 1 in a sealing manner, and the sealing portion 22 extends from one side surface of the cover plate assembly 1 in a direction away from the cover plate assembly 1; when the cover plate assembly 1 is buckled on the cooking vessel 3, the sealing part 22 is abutted on the open edge 31 of the cooking vessel 3, and an elastic structure for reducing the extrusion deformation stress of the sealing part 22 is arranged on one side surface of the sealing part 22 outside the cooking vessel 3; by arranging the elastic structure, the stress of the extrusion deformation of the sealing ring is reduced, so that the sealing ring is easy to recover after being extruded.

The mounting portion 21 of the present embodiment may be a continuous ring-shaped connecting ring, or may be a discontinuous ring-shaped connecting strip integrally connected to the sealing portion 21.

The sealing part 22 of the present embodiment is preferably a V-shaped structure, and one end of the opening thereof is integrally connected with the mounting part 21; when the cover plate assembly 1 is buckled on the cooking vessel 3, one bent end of the sealing part 22 is abutted on the opening edge 31 of the cooking vessel 3, and the opening of the sealing part 22 with the V-shaped structure faces to the outer side of the sealing ring 2. As shown in fig. 5 to 9, the inner side of the bent part of the sealing part 22 of the V-shaped structure is provided with a reinforcing rib 226, the elastic structure is arranged on the reinforcing rib 226, and the arrangement of the reinforcing rib and the elastic structure enhances the rigidity of the whole V-shaped structure, and simultaneously reduces the extrusion deformation stress of the sealing part, so that when the cover plate component is buckled on a cooking utensil, the sealing ring is not easy to deform after extrusion, and the sealing effect is better; the opening of the V-shaped structure sealing part faces the outer side of the sealing ring, so that the sealing part is easier to restore when not being extruded.

As shown in fig. 7 and 9, the elastic structure of the present embodiment is an elastic notch 229 formed on the surface of the reinforcing rib 226. The elastic notch 229 in this embodiment is specifically an arc-shaped opening or V-shaped opening formed by recessing the surface of the reinforcing rib 226 at the bending position of the V-shaped structure. The arc-shaped opening in the embodiment is an arc-shaped opening, and the radius of the arc-shaped opening is 0.5 mm-5 mm, preferably 1mm, 2mm, 3mm, 4mm or 4.5mm; the arc-shaped opening with the radius range ensures that the deformation stress of the sealing part is more uniform and the sealing effect is better.

The reinforcing rib 226 of the embodiment may be an annular rib which is in an annular structure and is arranged at the inner side of the bending part of the V-shaped structure, or may be a plurality of segments of ribs which are equally spaced and are annularly arranged at the inner side of the bending part of the V-shaped structure; in this embodiment, the reinforcing ribs 226 are preferably multiple and uniformly distributed around the central axis of the sealing ring 2, as shown in fig. 5. The width of the reinforcing ribs 226 is preferably 0.4mm to 2mm, more preferably 0.6mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.6mm and 1.8mm; preferably the width refers to the circumferential width of the stiffener 226.

As shown in fig. 5, in the plurality of reinforcing ribs 226 of the present embodiment, an included angle δ formed by a line connecting two adjacent reinforcing ribs 226 and the center of the seal ring 2 is 10 ° or more and 30 ° or less. Delta can be selected to be 10 °, 15 °, 20 °, 25 ° and 30 °. The rigidity and the deformability of the whole reinforcing rib are optimized by limiting the angle between every two reinforcing ribs.

The hardness of the sealing portion 22 in this embodiment is 30A to 75A, and the hardness of the sealing portion 22 may be preferably 35A, 40A, 45A, 50A, 55A, 60A, 65A or 70A. Since the thickness of the solid part of the sealing part is inversely proportional to the hardness thereof, the higher the hardness is, the smaller the deformation amount of the solid part is, which is unfavorable for sealing; and under the same hardness, the thickness of the steel plate is thinned, so that the deformation amount of the steel plate can be increased; in this embodiment, the hardness of the solid portion of the sealing portion is reasonably defined, so that the deformation amount of the sealing portion can be reasonably controlled by the change of the thickness of the solid portion of the sealing portion.

As shown in fig. 2 and 4, the sealing portion 22 of the present embodiment includes a water diversion section 221 and a pressure-bearing section 224 located outside the water diversion section 221, where the water diversion section 221 and the pressure-bearing section 224 are all annularly arranged around the central axis of the sealing ring 2; one end of the water diversion section 221 is connected with the mounting part 21, the other end of the water diversion section 221 is connected with one end of the pressure-bearing section 224 and is abutted against the open edge 31 of the cooking vessel 3, the pressure-bearing section 224 extends towards a direction far away from the central axis of the sealing ring 2, and the water diversion section 221 and the pressure-bearing section 224 form the V-shaped structure; the reinforcing rib 226 is disposed at the outer side of the junction of the water diversion section 221 and the pressure-bearing section 224.

As shown in fig. 7 and 9, the reinforcing rib 226 of the V-shaped seal ring of this embodiment includes a first reinforcing rib section 227 formed by extending the water diversion section 221 radially outwards and a second reinforcing rib section 228 formed by extending the pressure-bearing section 224 radially in a direction close to the water diversion section 221, one end of the first reinforcing rib section 227 close to the bending position is integrally connected with one end of the second reinforcing rib section 228 close to the bending position, and the arc-shaped opening or V-shaped opening is formed at the connection position of the first reinforcing rib section 227 and the second reinforcing rib section 228.

As shown in fig. 6 to 9, the arcuate or V-shaped opening of the present embodiment is located above (shown in fig. 7) or below (shown in fig. 9) the junction of the outer convex extension of the first rib segment 227 and the outer convex extension of the second rib segment 228.

As shown in fig. 4, in this embodiment, an included angle formed by a connecting line between two ends of the water diversion segment 221 and a connecting line between two ends of the pressure-bearing segment 224 is γ, where γ is greater than or equal to 0 ° and less than or equal to 90 ° with respect to an upward direction of a central axis of the seal ring 2; gamma is selected from 10 DEG to 60 DEG, and further selected from 30 DEG, 40 DEG, 45 DEG, 50 DEG and 55 deg. Through rationally prescribing a limit to the contained angle between the central line of the contained angle that V type structure formed and sealing washer 2 central axis, avoid the contained angle too big and cause sealed effect not good, and be difficult to by the extrusion.

As shown in fig. 2 and fig. 4, a side surface of the water diversion section 221, which is close to the central axis of the sealing ring 2, is a water diversion surface 225, and the water diversion surface 225 is a water diversion cambered surface or a water diversion inclined surface; so that condensed water slides off from the sealing ring, the sealing ring is kept in a water-free state, and the phenomenon of water accumulation in the sealing ring caused by steam condensation in the cooking process can be avoided.

When the water diversion surface 225 is a diversion cambered surface, the water diversion section 221 is of a uniform arc structure; by arranging the water diversion section into an arc-shaped structure, the stress generated when the water diversion section is extruded and deformed is small, and the durability of the sealing ring is improved.

When the water diversion surface 225 is a water diversion slope, the water diversion section 221 is a flat plate structure.

As shown in fig. 2 and 4, the end of the diversion cambered surface or diversion inclined surface, which is far away from the cover plate assembly 1, is located directly below or outside the end of the diversion cambered surface or diversion inclined surface, which is close to the cover plate assembly 1, that is, the vertical distance between the end of the diversion cambered surface or diversion inclined surface, which is far away from the cover plate assembly 1, and the central axis of the sealing ring 2 is greater than or equal to the vertical distance between the end of the diversion cambered surface or diversion inclined surface, which is close to the cover plate assembly 1, and the central axis of the sealing ring 2. The condensed water can directly slide down along the water diversion inclined plane or the water diversion cambered surface by self gravity, and the sealing ring is easy to clean.

As shown in fig. 4, in the arc formed by the same longitudinal section of the diversion cambered surface in this embodiment, the included angle between the connecting line of any two points and the downward direction of the central axis of the sealing ring 2 is θ, where θ is greater than or equal to 0 ° and less than or equal to 90 °, θ is selected from 10 ° to 60 °, and further is selected from 30 °, 40 °, 45 °, 50 ° and 55 °. The problem of poor sealing or water diversion effect caused by overlarge bending radian of the water diversion cambered surface can be avoided by limiting the included angle between any two points and the central axis of the sealing ring in the downward direction in the arc formed by any one longitudinal tangent plane of the water diversion cambered surface.

As shown in fig. 1 to 4, in this embodiment, the diversion cambered surface is formed by recessing the sealing ring 2 in a direction away from the central axis of the sealing ring 2, and compared with the diversion cambered surface formed by protrusion, the diversion effect and the sealing effect are better.

As shown in fig. 4, an included angle between a tangent line at any point on the diversion cambered surface and the downward direction of the central axis of the sealing ring 2 in this embodiment is α, where α is greater than or equal to 0 ° and less than or equal to 90 °, and α is optionally 10 ° to 60 °, and further optionally 30 °, 40 °, 45 °, 50 ° and 55 °; the included angle between the tangent line of any point on the diversion cambered surface and the downward direction of the central axis of the sealing ring is limited, so that the problem of poor sealing or diversion effect caused by overlarge radian of the diversion cambered surface is avoided.

As shown in fig. 1, the sealing portion 22 of the present embodiment further includes a sealing connection section 222, one end of the sealing connection section 222 is connected to the connection portion between the water diversion section 221 and the mounting portion 21, and the other end extends toward a direction approaching the central axis of the sealing ring 2 and is in sealing and pressing connection with the cover plate assembly 1. Through setting up sealed linkage segment, accessible sealed linkage segment seals the crimping and shelters from annular gap outside the interior confined environment of cooking utensil on the apron, avoids the vapor in the cooking utensil to enter into in apron subassembly or the sealing washer and causes ponding phenomenon.

Example 2

As shown in fig. 1, the cover plate assembly 1 includes a cover plate body 12, a pressing plate 11 with an annular structure, and a sealing ring 2 as described in embodiment 1, the pressing plate 11 is crimped on the circumferential edge of the cover plate body 12 and forms an annular gap 13 with the cover plate body 12, the mounting portion 21 is crimped in the annular gap 13 and is located at the inner ring side of the pressing plate 11, and the mounting portion 21 with a 'r' -shaped longitudinal section is crimped in the annular gap 13, so that the mounting portion 21 is clamped with the pressing plate 11 more firmly; the seal 22 extends from the annular gap 13 in a direction away from the cover plate assembly 1 and sealingly shields the annular gap 13. The cover plate assembly of the embodiment is provided with the elastic structure outside the joint of the sealing ring and the open edge of the cooking utensil, so that the stress of extrusion deformation of the sealing ring is reduced, and the sealing ring is easy to recover after being extruded.

Example 3

The present embodiment provides an upper cover assembly comprising a cover body and a cover plate assembly 1 as described in embodiment 2, the other side of the cover plate assembly 1 being attached to the cover body. The upper cover assembly of this embodiment sets up elastic construction through the outside with the laminating department at sealing washer and the open border of cooking utensil, has reduced the stress that the sealing washer extrusion warp, makes the sealing washer by the extrusion back resume the original state easily.

Example 4

An electric appliance of the present embodiment, as shown in fig. 1, includes a cooking vessel 3 and an upper cover assembly as described in embodiment 3, the upper cover assembly being mounted at an open end of the cooking vessel 3; when the upper cover assembly is buckled on the cooking vessel 3, the sealing part 22 is in sealing and pressing connection with the opening edge 31 of the cooking vessel 3. The electric appliance of this embodiment compact structure, sealed effectual, its apron subassembly does not have ponding phenomenon, and customer experience is effectual.

The electric appliance is an electric cooker, an electric pressure cooker, a soymilk machine, an electric baking pan, a soup stewing pan or a soymilk machine.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. The sealing ring on the cover plate assembly is characterized by comprising an installation part and a sealing part which are integrally connected, wherein the longitudinal section of the installation part is in a 'gamma' -shape and is arranged on one side surface of the cover plate assembly in a sealing way, and the sealing part extends out from one side surface of the cover plate assembly along the direction deviating from the cover plate assembly; when the cover plate component is buckled on the cooking vessel, the sealing part is abutted on the opening edge of the cooking vessel, and an elastic structure for reducing the extrusion deformation stress of the sealing part is arranged on one side surface of the sealing part, which is positioned outside the cooking vessel; the elastic structure is an elastic notch formed on one side surface of the sealing part outside the cooking vessel;

the sealing part is of a V-shaped structure, and one end of the opening of the sealing part is integrally connected with the mounting part; when the cover plate assembly is buckled on the cooking vessel, one bent end of the sealing part is abutted against the open edge of the cooking vessel; the opening of the sealing part of the V-shaped structure faces to the outer side of the sealing ring;

the sealing part comprises a water diversion section and a pressure-bearing section positioned at the outer side of the water diversion section, and the water diversion section and the pressure-bearing section are annularly arranged around the central axis of the sealing ring; one end of the water diversion section is connected with the mounting part, the other end of the water diversion section is connected with one end of the pressure-bearing section and is abutted to the open edge of the cooking utensil, the pressure-bearing section extends towards a direction away from the central axis of the sealing ring, and the water diversion section and the pressure-bearing section form the V-shaped structure;

one side surface of the water diversion section, which is close to the central axis of the sealing ring, is a water diversion cambered surface or a water diversion inclined surface; and one end of the diversion cambered surface or the diversion inclined surface, which is far away from the cover plate assembly, is positioned right below or outside one end of the diversion cambered surface or the diversion inclined surface, which is close to the cover plate assembly.

2. The gasket of claim 1 wherein said resilient notch is a curved or V-shaped opening in a side of said sealing portion outside said gasket.

3. A sealing ring on a cover plate assembly according to claim 2, wherein the arc-shaped opening is a circular arc-shaped opening, and the radius of the circular arc-shaped opening is 0.5 mm-5 mm.

4. A gasket for a lid assembly according to any one of claims 1 to 3, wherein when the lid assembly is snapped onto a cooking vessel, the side of the sealing portion which is located outside the cooking vessel is provided with a reinforcing rib, and the resilient structure is provided on the reinforcing rib.

5. The gasket of claim 4 wherein said ribs are disposed at folds of said sealing portion on a side of said cooking vessel.

6. The gasket of claim 5 wherein said ribs are a plurality of and are evenly distributed about a central axis of said gasket; an included angle formed by connecting lines between two adjacent reinforcing ribs and the centers of the sealing rings is more than or equal to 10 degrees and less than or equal to 30 degrees.

7. The gasket of claim 6 wherein said ribs have a width of 0.4mm to 2mm.

8. A sealing ring on a cover assembly according to any one of claims 5 to 7, wherein the reinforcing ribs are provided on the outside of the junction of the water diverting section and the pressure bearing section.

9. The gasket of claim 8, wherein the reinforcing rib comprises a first reinforcing rib section formed by radially protruding the water diversion section outwards and a second reinforcing rib section formed by radially protruding the pressure-bearing section towards a side close to the water diversion section, and one end of the first reinforcing rib section close to the bending position is integrally connected with one end of the second reinforcing rib section close to the bending position; the arc-shaped opening or the V-shaped opening is formed at the joint of the first reinforcing rib section and the second reinforcing rib section.

10. A gasket in a closure assembly according to claim 9, wherein the arcuate or V-shaped opening is located above or below the junction of the first bead segment outer convex extent and the second bead segment outer convex extent.

11. A sealing ring on a cover assembly according to claim 9 or 10, wherein an included angle between a central line of an included angle formed by a connecting line of two ends of the water diversion section and a connecting line of two ends of the pressure bearing section and an upward direction of a central axis of the sealing ring is greater than or equal to 0 ° and less than or equal to 90 °.

12. The gasket of claim 11 wherein said diverting arcuate surface is formed by recessing said gasket in a direction away from a central axis of said gasket.

13. The gasket of claim 12 wherein said seal further comprises a sealing connection section, one end of said sealing connection section being connected to said water-diverting section at a junction with said mounting section and the other end extending toward a direction proximate a central axis of said gasket and being sealingly crimped to said gasket.

14. A sealing ring for a cover plate assembly according to any one of claims 1 to 3 and 5 to 7, wherein the hardness of the sealing portion is 30 to 75A.

15. A cover plate assembly comprising a cover plate body, a pressure plate of annular structure and a sealing ring as claimed in any one of claims 1 to 14, wherein the pressure plate is in pressure connection with a circumferential edge of the cover plate body and forms an annular gap with the cover plate body, the mounting part is in sealed pressure connection with the annular gap and is positioned on the inner ring side of the pressure plate, and the sealing part extends from the annular gap in a direction away from the cover plate assembly and seals and shields the annular gap.

16. An upper cover assembly comprising a cover body and the cover assembly of claim 15, the other side of the cover assembly being attached to the cover body.

17. An appliance comprising a cooking vessel and the upper lid assembly of claim 16 mounted at an open end of the cooking vessel; when the upper cover component is buckled on the cooking vessel, the sealing part is in sealing and pressing connection with the opening edge of the cooking vessel.