Sealing structure, cover body assembly and household appliance

Abstract

The invention relates to the technical field of household appliances, and discloses a sealing structure, a cover body assembly and a household appliance, and the sealing structure comprises a sealing body which is suitable for being connected between a cover body and a second steam valve cover; the first sealing part is connected to the end, away from the cover body, of the sealing body, and the first sealing part is suitable for being connected between the first steam valve cover and the second steam valve cover. The sealing body can achieve sealing between the cover body and the steam valve assembly, the first sealing part can achieve sealing between the first steam valve cover and the second steam valve cover, and steam and water drops are prevented from falling back into the household appliance through a gap between the first steam valve cover and the second steam valve cover. By arranging the sealing structure, sealing between the steam valve assembly and the cover body and sealing between the first steam valve cover and the second steam valve cover can be achieved at the same time, full sealing of the cover body assembly of the household appliance is achieved, the sealing effect is improved, the structural arrangement is simplified, and cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a sealing structure, a cover assembly and a household appliance. Background Art

[0002] A steam valve assembly needs to be provided on the lid of household appliances such as food processors and rice cookers to allow the steam inside to flow out when the household appliances are in use, thereby preventing excessive pressure during the cooking process of the household appliances.

[0003] At present, food processors such as wall breaking machines, soybean milk machines, and juicers are very popular among users. Taking a food processor as an example, the food processor beats food by a blade arranged in a cup body, and a cover body is arranged on the cup body, and a steam valve assembly is installed on the cover body.

[0004] In order to prevent the steam and water droplets generated during the cooking process from falling back into the cup body, a sealing structure is generally provided between the steam valve assembly and the cover body of the food processor. The sealing structure usually includes a sealing body and a sealing ring protruding outward from the sealing body. The sealing between the steam valve assembly and the cover body is achieved by squeezing the sealing structure.

[0005] However, the steam valve assembly of a food processor generally includes a plurality of steam valve covers. If a sealing structure is only provided between the steam valve assembly and the cover body, and if the sealing between the plurality of steam valve covers is not tight, steam and water droplets may still fall back into the cup body. Summary of the invention

[0006] In view of this, the present invention provides a sealing structure, a cover assembly and a household appliance to solve the problem that the sealing structure of the existing food processor only seals the steam valve assembly and the cover body, but still has a poor sealing.

[0007] In a first aspect, the present invention provides a sealing structure suitable for being connected to a household appliance, wherein the household appliance comprises a cover body and a steam valve assembly, wherein the steam valve assembly comprises at least a first steam valve cover and a second steam valve cover which are separately arranged, wherein the second steam valve cover is arranged between the cover body and the first steam valve cover, and wherein the sealing structure comprises:

[0008] a sealing body, the sealing body being adapted to be connected between the cover body and the second steam valve cover;

[0009] A first sealing portion is connected to an end of the sealing body away from the cover body, and the first sealing portion is suitable for being connected between the first steam valve cover and the second steam valve cover.

[0010] Beneficial effect: By setting the sealing structure to a structural form including a sealing body and a first sealing part, the sealing body can achieve sealing between the cover body and the steam valve assembly. Since the first steam valve cover and the second steam valve cover are separately arranged, there will be a gap between the two when they are assembled. The first sealing part can achieve sealing between the first steam valve cover and the second steam valve cover of the steam valve assembly to prevent steam and water droplets from falling back into the household appliance through the gap between the first steam valve cover and the second steam valve cover. By setting a sealing structure, sealing between the steam valve assembly and the cover body, and between the first steam valve cover and the second steam valve cover can be achieved at the same time, thereby achieving full sealing of the cover assembly of the household appliance and improving the sealing effect. There is no need to set a separate sealing structure between each steam valve cover where a gap may be poorly sealed, and between the steam valve assembly and the cover body, thereby simplifying the structural setting and reducing costs.

[0011] In an optional embodiment, the first sealing portion includes:

[0012] A second connection portion, one end of which is connected to the end of the sealing body away from the cover body, and in the height direction, the second connection portion is arranged between the second steam valve cover and the cover body;

[0013] The folded portion has one end connected to the other end of the second connecting portion and the other end disposed between the second steam valve cover and the first steam valve cover.

[0014] In an optional embodiment, the folded portion includes:

[0015] A connecting end, one end of which is connected to the other end of the second connecting portion, and an extending direction of the connecting end is arranged at an angle to an extending direction of the second connecting portion;

[0016] The folded end is connected to the other end of the connecting end, and the extending direction of the folded end is parallel to the extending direction of the second connecting portion.

[0017] In an optional embodiment, the extension length W1 of the folded end is 3 mm-8 mm.

[0018] In an optional embodiment, the sealing structure includes:

[0019] The second sealing part is protrudingly arranged on the outer side of the sealing body, and the second sealing part is suitable for being connected between the cover body and the second steam valve cover.

[0020] In an optional embodiment, the second sealing portion includes:

[0021] The first sealing rib is annularly convexly arranged on the outer side of the sealing body, and the first sealing rib is arranged at an end of the sealing body away from the first sealing part.

[0022] In an optional embodiment, the second sealing portion includes a second sealing rib, which is annularly convexly arranged on the outer side of the sealing body and is located between the first sealing rib and the first sealing portion in the height direction.

[0023] Beneficial effect: By configuring the second sealing portion to include a first sealing rib and a second sealing rib, the sealing effect can be enhanced.

[0024] In an optional embodiment, in the length direction extending outward from the sealing body, an extension length W3 of the first sealing rib is greater than an extension length W2 of the second sealing rib.

[0025] In an optional embodiment, the extension length W3 of the first sealing rib is 2 mm-3.5 mm;

[0026] And / or, the extension length W2 of the second sealing rib is 1.5 mm-3 mm.

[0027] In an optional embodiment, the sealing structure is made of food-grade silicone.

[0028] In a second aspect, the present invention further provides a cover assembly, comprising:

[0029] A cover body, wherein the cover body is provided with an opening;

[0030] A steam valve assembly, the steam valve assembly being arranged at the opening; the steam valve assembly at least comprising a first steam valve cover and a second steam valve cover which are arranged separately;

[0031] The sealing structure mentioned above is arranged at the opening.

[0032] Beneficial effect: Since the cup cover assembly includes the above-mentioned sealing structure, it has the same technical effect as the sealing structure, which will not be described in detail here.

[0033] In an optional embodiment, the steam valve assembly is connected to the opening by interference fit through the sealing structure.

[0034] Beneficial effect: By connecting the steam valve assembly and the opening on the cover body through an interference fit of a sealing structure, it is convenient for the user to remove the steam valve assembly from the cover body. During the operation of the household appliance, if the user forgets to add certain ingredients, the steam valve assembly can be easily taken out and temporary ingredients can be added into the household appliance from the opening, which is convenient and quick.

[0035] In an optional embodiment, a limiting boss is provided on the second steam valve cover; and the folded end of the first sealing portion is placed on the limiting boss.

[0036] Beneficial effect: By arranging the limiting boss on the second steam valve cover, it is convenient to assemble the folded end of the first sealing portion, thereby achieving sealing between the first steam valve cover and the second steam valve cover.

[0037] In an optional embodiment, an annular groove is provided on the outer side of the second steam valve cover, and the groove is arranged corresponding to the sealing structure.

[0038] Beneficial effect: By setting an annular groove on the outer side of the second steam valve cover, the groove corresponds to the sealing structure, so that when the sealing structure is assembled, the sealing structure can be tightly fitted into the groove of the second steam valve cover by extrusion, ensuring that the sealing structure will not fall off, the seal is tighter, and the reliability of the seal is greatly improved.

[0039] In an optional embodiment, the first sealing rib of the sealing structure is disposed on a side of the sealing body close to the opening, and a radial width D1 of the first sealing rib is greater than a radial width D0 of the opening.

[0040] Beneficial effect: by setting a first sealing rib of an annular structure on one side of the opening of the sealing structure close to the cover body, and the radial width D1 of the first sealing rib is greater than the radial width D0 of the opening, when the sealing structure is assembled to the opening, the first sealing rib can be squeezed into the opening by extrusion. When the first sealing rib extends from the opening, it means that the sealing structure is assembled in place. At this time, since the radial width of the first sealing rib is greater than the radial width of the opening, the first sealing rib can also play a role in blocking the opening, thereby preventing the food or steam in the household appliance from pushing the steam valve assembly upward and shifting it during cooking, and preventing water vapor from splashing out and accidentally injuring the user during the shifting process.

[0041] In a third aspect, the present invention further provides a household appliance, comprising: the above-mentioned cover assembly.

[0042] Beneficial effect: Because the household appliance includes the above-mentioned cover assembly, it has the same technical effect as the cover assembly, which will not be repeated here.

[0043] In an optional embodiment, the household appliance is a food processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A structural schematic diagram of a sealing structure according to an embodiment of the present invention;

[0046] Figure 2 for Figure 1 A partial cross-sectional view of the sealing structure shown;

[0047] Figure 3 An exploded view of another cover assembly according to an embodiment of the present invention;

[0048] Figure 4 is a cross-sectional view of the cover assembly;

[0049] Figure 5 is a cross-sectional view of the cover assembly;

[0050] Figure 6 An exploded view of a steam valve assembly of a cover assembly;

[0051] Figure 7 is a cross-sectional view of a steam valve assembly of a cover assembly;

[0052] Figure 8 is a top view of a first steam valve cover of the steam valve assembly;

[0053] Fig. 9 It is a structural schematic diagram of a reflux structure of a steam valve assembly;

[0054] Fig.10 A cross-sectional view of a second steam valve cover of a steam valve assembly.

[0055] Description of reference numerals:

[0056] 1-first steam valve cover; 102-first flow guide structure; 1021-first through hole; 103-first steam chamber; 104-backflow structure; 1041-first connecting part; 1042-first convex part; 1043-second convex part; 105-first water outlet hole; 106-second water outlet hole; 107-third connecting part;

[0057] 2-second steam valve cover; 201-second steam chamber; 202-third water outlet; 203-limiting boss; 204-groove;

[0058] 3-sealing structure; 301-sealing body; 302-first sealing rib; 303-second connecting portion; 304-folding portion; 305-second sealing rib;

[0059] 4-cover; 401-opening; 402-second cover; 403-third cover;

[0060] 5- Sealing device;

[0061] 6-third steam valve cover; 601-second flow guide structure; 6011-second through hole;

[0062] 7-Steam valve assembly. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0064] Combine the following Figures 1 to 10 , describing an embodiment of the present invention.

[0065] According to an embodiment of the present invention, in a first aspect, a sealing structure is provided, which is suitable for being connected to a household appliance. The household appliance includes a cover body 4 and a steam valve assembly 7. The steam valve assembly 7 includes at least a first steam valve cover 1 and a second steam valve cover 2 which are separately arranged. The second steam valve cover 2 is arranged between the cover body 4 and the first steam valve cover 1. The sealing structure includes: a sealing body 301, which is suitable for being connected between the cover body 4 and the second steam valve cover 2; a first sealing portion, which is connected to an end of the sealing body 301 away from the cover body 4, and which is suitable for being connected between the first steam valve cover 1 and the second steam valve cover 2.

[0066] By setting the sealing structure to a structural form including a sealing body 301 and a first sealing portion, the sealing body 301 can achieve sealing between the cover body 4 and the steam valve assembly 7. Since the first steam valve cover 1 and the second steam valve cover 2 are separately set, there will be a gap between the two when they are assembled. The first sealing portion can achieve sealing between the first steam valve cover 1 and the second steam valve cover 2 of the steam valve assembly 7 to prevent steam and water droplets from falling back into the household appliance through the gap between the first steam valve cover 1 and the second steam valve cover 2. By setting a sealing structure 3, sealing between the steam valve assembly 7 and the cover body 4 and the first steam valve cover 1 and the second steam valve cover 2 can be achieved at the same time, thereby achieving full sealing of the cover assembly of the household appliance and improving the sealing effect. There is no need to set a separate sealing structure between each steam valve cover where a gap may be poorly sealed and between the steam valve assembly 7 and the cover body 4, thereby simplifying the structural setting and reducing costs.

[0067] like Figure 1As shown, the first sealing portion includes: a second connecting portion 303, one end of which is connected to the end of the sealing body 301 away from the cover body 4, and in the height direction, the second connecting portion 303 is arranged between the second steam valve cover 2 and the cover body 4; a folding portion 304, one end of which is connected to the other end of the second connecting portion 303, and the other end is arranged between the second steam valve cover 2 and the first steam valve cover 1.

[0068] The folded portion 304 includes: a connection end, one end of which is connected to the other end of the second connection portion 303, and the extension direction of the connection end is set at an angle to the extension direction of the second connection portion 303; and a folded end, which is connected to the other end of the connection end, and the extension direction of the folded end is parallel to the extension direction of the second connection portion 303. Specifically, Figure 1 As shown, the extension direction of the connection end is perpendicular to the extension direction of the second connection part 303, that is, the extension direction of the connection end is vertical, the extension direction of the second connection part 303 is horizontal, and the extension direction of the folded end is horizontal. As a convertible embodiment, the extension direction of the connection end and the extension direction of the second connection part 303 may be arranged at an acute angle or an obtuse angle.

[0069] Among them, Figure 2 As shown, in the direction in which the folded end extends outward from the connection end, the extension length W1 of the folded end is 3mm-8mm. Of course, the specific extension length of the folded end can be set according to the actual product requirements, and no excessive restrictions are made here.

[0070] In one embodiment, the sealing structure 3 includes: a second sealing portion, which is convexly arranged on the outside of the sealing body 301 and is suitable for connecting between the cover body 4 and the second steam valve cover 2. As a convertible embodiment, the sealing structure 3 may not include the second sealing portion.

[0071] Specifically, Figure 1 As shown, the second sealing portion includes: a first sealing rib 302, which is annularly convexly arranged on the outer side of the sealing body 301, and the first sealing rib 302 is arranged at one end of the sealing body 301 away from the first sealing portion.

[0072] In order to enhance the sealing effect, the second sealing part includes a second sealing rib 305, which is annularly convexly arranged on the outside of the sealing body 301 and is located between the first sealing rib 302 and the first sealing part in the height direction. By configuring the second sealing part to include the first sealing rib 302 and the second sealing rib 305, the sealing effect can be enhanced. As a convertible embodiment, the second sealing part may include only the first sealing rib 302 or only the second sealing rib 305.

[0073] In the length direction extending outward from the sealing body 301, the extension length W3 of the first sealing rib 302 is greater than the extension length W2 of the second sealing rib 305. By setting the extension length of the first sealing rib 302 to be greater than the extension length of the second sealing rib 305, it is convenient to assemble the sealing structure 3 onto the cover body 4.

[0074] Among them, Figure 2 As shown, the extension length W3 of the first sealing rib 302 is 2mm-3.5mm; the extension length W2 of the second sealing rib 305 is 1.5mm-3mm. Of course, the specific extension lengths of the first sealing rib 302 and the second sealing rib 305 can be set according to the actual product requirements, and no excessive restrictions are made here.

[0075] The sealing structure 3 in this embodiment is made of elastic material, specifically food-grade silicone material, and the thickness can be set to be more than 0.2 mm, so that it can effectively absorb the steam and water droplets generated during the operation of the household appliance without affecting the taste of the food. As a convertible embodiment, the sealing structure 3 can also be made of sealing rubber or other materials with the same sealing function.

[0076] According to an embodiment of the present invention, in a second aspect, a cover assembly is provided, comprising: a cover body 4, on which an opening 401 is provided; a steam valve assembly 7, which is arranged at the opening 401; the steam valve assembly 7 comprises at least a first steam valve cover 1 and a second steam valve cover 2 which are separately arranged; and the above-mentioned sealing structure 3, which is arranged at the opening 401.

[0077] The steam valve assembly 7 in this embodiment is connected to the opening 401 by an interference fit through the sealing structure 3. By connecting the steam valve assembly 7 to the opening 401 by an interference fit through the sealing structure 3, it is convenient for the user to remove the steam valve assembly 7 from the cover body 4. During the operation of the household appliance, if the user forgets to add a certain ingredient, the steam valve assembly 7 can be easily taken out and the household appliance can be temporarily added from the opening 401, which is convenient and quick. As a convertible embodiment, the steam valve assembly 7 can also be integrally formed on the cover body 4.

[0078] like Fig.10As shown, the second steam valve cover 2 is provided with a limiting boss 203; the folded end of the first sealing portion is placed on the limiting boss 203. Specifically, the limiting boss 203 is formed on the top plate of the second steam valve cover 2. By providing the limiting boss 203 on the second steam valve cover 2, it is convenient to assemble the folded end of the first sealing portion, thereby achieving the seal between the first steam valve cover 1 and the second steam valve cover 2. As a convertible embodiment, it is also possible that the limiting boss 203 is not provided on the second steam valve cover 2, and the folded end is directly placed on the second steam valve cover 2, and is located between the first steam valve cover 1 and the second steam valve cover 2 during assembly.

[0079] In this embodiment, an annular groove 204 is provided on the outer side of the second steam valve cover 2, and the groove 204 is provided corresponding to the sealing structure 3. By providing an annular groove 204 on the outer side of the second steam valve cover 2, and the groove 204 is provided corresponding to the sealing structure 3, the sealing structure 3 can be tightly fitted to the groove 204 of the second steam valve cover 2 by extrusion during assembly, ensuring that the sealing structure 3 will not fall off, the seal is tighter, and the reliability of the seal is greatly improved, thereby reducing the production and precision requirements between various components. As a convertible embodiment, it is also possible that the annular groove 204 is not provided on the outer side of the second steam valve cover 2.

[0080] like Figure 5 As shown, the first sealing rib 302 of the sealing structure 3 is arranged on one side of the sealing body 301 close to the opening 401, and the radial width D1 of the first sealing rib 302 is greater than the radial width D0 of the opening. The radial width here refers to the dimension along the width direction, that is, Figure 5 Regarding the dimension in the left-right direction, when the cross-sectional areas of the opening 401 and the first sealing rib 302 are both circular, the radial width is the diameter thereof; when the cross-sectional areas of the opening 401 and the first sealing rib 302 are non-circular, the radial width is the maximum dimension thereof in the width direction.

[0081] By providing a first sealing rib 302 of an annular structure on one side of the opening 401 of the sealing structure 3 close to the cover body 4, and the radial width D1 of the first sealing rib 302 is greater than the radial width D0 of the opening 401, when the sealing structure 3 is assembled to the opening 401, the first sealing rib 302 can be squeezed into the opening 401 by extrusion. When the first sealing rib 302 extends from the opening 401, it means that the sealing structure 3 is assembled in place. At this time, since the radial width of the first sealing rib 302 is greater than the radial width of the opening 401, the first sealing rib 302 can also play a role in blocking the opening 401, thereby preventing the food or steam in the household appliance from pushing the steam valve assembly 7 upward and shifting it during cooking, and preventing water vapor from splashing out and accidentally injuring the user during the shifting process.

[0082] like Figure 3 and Figure 4 As shown, the cover body 4 includes: a second cover body 402, a third cover body 403 and a sealing device 5, the second cover body 402 is connected to the top of the third cover body 403, the third cover body 403 is provided with an opening 401, and the steam valve assembly 7 is interference fit in the opening 401 of the third cover body 403 through the sealing structure 3.

[0083] Among them, the sealing device 5 is food-grade silicone, and the cover body 4 is sealed with the interior of the household appliance through the sealing device 5. For example, when the household appliance is a food processor, the cover body 4 is sealed with the cup body of the food processor through the sealing device 5. For example, when the household appliance is an electric rice cooker, the cover body 4 is sealed with the pot body of the electric rice cooker through the sealing device 5.

[0084] During the operation of the household appliance, if it is found that the amount of food is small or a certain food is forgotten to be added, the entire steam valve assembly 7 can be taken out from the opening 401 of the cover body 4 for temporary addition of food, which is convenient and quick.

[0085] like Figure 6 As shown, the steam valve assembly 7 includes a first steam valve cover 1, a second steam valve cover 2, and a third steam valve cover 6. Figure 7 As shown, the second steam valve cover 2 is arranged at the bottom, which is the lower cover of the steam valve and is connected to the cover body 4 through the sealing structure 3; the first steam valve cover 1 is arranged above the second steam valve cover 2, which is the middle cover of the steam valve; the third steam valve cover 6 is arranged above the first steam valve cover 1, which is the upper cover of the steam valve.

[0086] A first steam chamber 103 is enclosed between the third steam valve cover 6 and the first steam valve cover 1. A first guide structure 102 and a second guide structure 601 are provided in the first steam chamber 103. The first guide structure 102 is provided on the first steam valve cover 1. A first through hole 1021 is provided on the first guide structure 102. The first through hole 1021 is communicated with the first steam chamber 103 and the inside of the household appliance respectively. The second guide structure 601 is provided on the third steam valve cover 6. A second through hole 6011 is provided on the second guide structure 601. The second through hole 6011 is communicated with the first steam chamber 103 and the outside respectively. The first guide structure 102 and the second guide structure 601 are arranged opposite to each other, so as to facilitate the flow of steam inside the household appliance.

[0087] Specific as Figure 7 As shown, the bottom of the first steam valve cover 1 is designed in a conical shape, that is, a structure with high sides and low middle. At least one water outlet is provided at the bottom of the first steam chamber 103, and the water outlet is connected to the inside of the household appliance. By providing a conical structure at the bottom of the first steam chamber 103 and providing a water outlet at the bottom, the liquid can be discharged in time after entering the first steam chamber 103, so as to prevent the liquid from accumulating in the first steam chamber 103 and affecting the steam circulation.

[0088] like Figure 8 As shown, there are multiple water outlet holes, including: a first water outlet hole 1022, located at the bottom of the first steam chamber 103; four second water outlet holes 1023, arranged around the periphery of the first water outlet hole 1022. As a convertible embodiment, it is also possible that only one water outlet hole is arranged at the lowest point of the first steam chamber 103; or, one, two, three or more second water outlet holes 1023 are arranged.

[0089] In order to ensure that no liquid accumulates in the first steam chamber 103, the steam valve assembly 7 includes: a reflux structure 104, which is arranged at the first water outlet 1022, suitable for preventing liquid inside the household appliance from entering the first steam chamber 103, and allowing liquid in the first steam chamber 103 to flow back to the interior of the household appliance.

[0090] Specifically, Fig. 9 As shown, the reflux structure 104 includes: a first connecting portion 1041, which is arranged in the first water outlet hole 105, and the extension height of the first connecting portion 1041 is slightly larger than the extension height of the first water outlet hole 105; a first convex portion 1042, which is connected to the upper end of the first connecting portion 1041 and is arranged in the first steam chamber 103, and the cross-sectional size of the first convex portion 1042 is slightly larger than the first water outlet hole 105; a second convex portion 1043, which is connected to the other end of the first connecting portion 1041 and is arranged outside the first steam chamber 103, and the cross-sectional size of the second convex portion 1043 is sufficient to cover all water outlet holes.

[0091] By setting the reflux structure 104 to include a first convex portion 1042, a first connecting portion 1041, and a second convex portion 1043, the reflux structure 104 can move up and down, and has the function of a one-way valve. Due to the effect of gravity, the first convex portion 1042 will be set at the first water outlet 105. When the liquid tends to flow upward from the inside of the household appliance into the first steam chamber 103, the second convex portion 1043 will be pressed upward. Since the cross-sectional size of the second convex portion 1043 can cover all the water outlets, the liquid cannot enter the first steam chamber 103 from the water outlet. When the impact of the liquid is too large, the liquid enters the first steam chamber 103 through the first flow guide structure 102, and the liquid in the first steam chamber 103 can push the second convex portion 1043 of the reflux structure 104 by its own gravity, and the liquid is discharged outward from the second water outlet 106. The reflux structure 104 can be set to achieve the liquid blocking and liquid discharge functions of the first steam chamber 103, and the structure is relatively simple.

[0092] As a convertible implementation, the reflux structure 104 may also be a one-way valve.

[0093] like Fig.10As shown, the second steam valve cover 2 includes a side plate, a bottom plate connected to the bottom of the side plate and a top plate connected to the top of the side plate, the bottom plate extends toward the inside of the side plate, the top plate extends toward the outside of the side plate, the bottom plate and the side plate enclose a second steam chamber 201, and a groove 204 is provided on the outside of the side plate.

[0094] Similarly, the bottom plate of the second steam chamber 201 is designed in a conical shape, that is, a structure with high sides and low middle. A third water outlet 202 is provided at the bottom of the second steam chamber 201, and the third water outlet 202 is connected to the interior of the household appliance. By setting the bottom plate of the second steam chamber 201 as a conical structure and providing a water outlet at the bottom, the liquid can be discharged in time after entering the second steam chamber 201, so as to prevent the liquid from accumulating in the second steam chamber 201 and affecting the steam circulation. As a convertible embodiment, it is also possible that a plurality of third water outlets 202 are provided.

[0095] The third water outlet hole 202 is staggered with the first flow guiding structure 102. When the household appliance is working, if the internal liquid flows upward into the cover assembly, it will flow upward through the third water outlet hole 202. By staggering the third water outlet hole 202 with the first flow guiding structure 102, a certain water blocking effect can be achieved, effectively preventing the liquid from entering the first steam chamber 103 through the first through hole 1021 of the first flow guiding structure 102, thereby affecting the circulation of steam.

[0096] For ease of assembly, the first steam valve cover 1 is threadedly connected to the second steam valve cover 2. Since the second steam valve cover 2 is connected to the cover body 4, the probability of liquid in the household appliance entering the second steam valve cover 2 is relatively high. By detachably connecting the first steam valve cover 1 to the second steam valve cover 2, the second steam valve cover 2 can be easily disassembled and cleaned.

[0097] Specifically, a third connection portion 107 is provided at the bottom of the first steam valve cover 1, a thread is provided on the outer side of the third connection portion 107, a thread is provided on the inner side of the side plate of the second steam valve cover 2, and the first steam valve cover 1 and the second steam valve cover 2 are connected together by screwing.

[0098] According to an embodiment of the present invention, in a third aspect, a household appliance is provided, comprising: the above-mentioned cover assembly.

[0099] Specifically, the household appliance in this embodiment is a food processor. As a convertible implementation, it can also be that the household appliance is an electric rice cooker.

[0100] A sealing structure 3 is provided in the food processor, which can prevent steam and water droplets from flowing back into the cup body of the food processor during operation. When the sealing structure 3 is installed at the corresponding position of the steam valve assembly 7, the steam valve assembly 7 and the cover body 4 are installed in place, and the corresponding food ingredients are added into the food processor, the power plug can be plugged in to turn on the power, and the food processor can work normally. When the sealing structure 3 is not installed in place, the food processor cannot work normally, and air leakage and water droplets will occur.

[0101] The setting of the reflux structure 104 of the food processor can control the emission of steam. Under the premise of ensuring safety, it makes it difficult for heat to be lost in the enclosed space, the internal temperature rises quickly, and the stewing of ingredients is faster, saving electricity and time.

[0102] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A sealing structure, suitable for being connected to a household appliance, the household appliance comprising a cover body (4) and a steam valve assembly (7), the steam valve assembly (7) comprising at least a first steam valve cover (1) and a second steam valve cover (2) which are separately arranged, the second steam valve cover (2) being arranged between the cover body (4) and the first steam valve cover (1), characterized in that: The sealing structure comprises: A sealing body (301), the sealing body (301) being suitable for being connected between the cover body (4) and the second steam valve cover (2); A first sealing portion is connected to an end of the sealing body (301) away from the cover body (4), and the first sealing portion is suitable for being connected between the first steam valve cover (1) and the second steam valve cover (2).

2. The sealing structure according to claim 1, characterized in that: The first sealing portion comprises: A second connecting portion (303), one end of which is connected to the end of the sealing body (301) away from the cover body, and in the height direction, the second connecting portion (303) is arranged between the second steam valve cover (2) and the cover body (4); The folded portion (304) has one end connected to the other end of the second connecting portion (303), and the other end is arranged between the second steam valve cover (2) and the first steam valve cover (1).

3. The sealing structure according to claim 2, characterized in that: The folded portion (304) comprises: A connecting end, one end of which is connected to the other end of the second connecting portion (303), and an extending direction of the connecting end is arranged at an angle to an extending direction of the second connecting portion (303); The folded end is connected to the other end of the connecting end, and the extending direction of the folded end is parallel to the extending direction of the second connecting portion (303).

4. The sealing structure according to claim 3, characterized in that: The extension length W1 of the folded end is 3 mm to 8 mm.

5. The sealing structure according to any one of claims 1 to 4, characterized in that: include: A second sealing portion, the second sealing portion is protruding from the outer side of the sealing body (301), and the second sealing portion is suitable for being connected between the cover body (4) and the second steam valve cover (2).

6. The sealing structure according to claim 5, characterized in that: The second sealing portion comprises: The first sealing rib (302) is annularly convexly arranged on the outer side of the sealing body (301), and the first sealing rib (302) is arranged at an end of the sealing body (301) away from the first sealing portion.

7. The sealing structure according to claim 6, characterized in that: The second sealing portion comprises a second sealing rib (305), which is annularly convexly arranged on the outer side of the sealing body (301) and is located between the first sealing rib (302) and the first sealing portion in the height direction.

8. The sealing structure according to claim 7, characterized in that: In the length direction extending outward from the sealing body (301), the extension length W3 of the first sealing rib (302) is greater than the extension length W2 of the second sealing rib (305).

9. The sealing structure according to claim 8, characterized in that: The extension length W3 of the first sealing rib (302) is 2 mm-3.5 mm; And / or, the extension length W2 of the second sealing rib (305) is 1.5 mm-3 mm.

10. The sealing structure according to any one of claims 1 to 4, characterized in that: The sealing structure is made of food-grade silicone.

11. A cover assembly, characterized in that: include: A cover body (4), wherein the cover body (4) is provided with an opening (401); A steam valve assembly (7), the steam valve assembly (7) being arranged at the opening (401), the steam valve assembly (7) comprising at least a first steam valve cover (1) and a second steam valve cover (2) which are arranged separately; The sealing structure according to any one of claims 1 to 10, wherein the sealing structure is arranged at the opening (401).

12. The cover assembly according to claim 11, characterized in that: The steam valve assembly (7) and the opening (401) are connected by interference fit via the sealing structure (3).

13. The cover assembly according to claim 11, characterized in that: The second steam valve cover (2) is provided with a limiting boss (203); the folded end of the first sealing portion is placed on the limiting boss (203).

14. The cover assembly according to claim 11, characterized in that: An annular groove (204) is provided on the outer side of the second steam valve cover (2), and the groove (204) is arranged corresponding to the sealing structure (3).

15. The cover assembly according to any one of claims 11 to 14, characterized in that: The first sealing rib (302) of the sealing structure is arranged on a side of the sealing body (301) close to the opening (401), and a radial width D1 of the first sealing rib (302) is greater than a radial width D0 of the opening (401).

16. A household appliance, characterized in that: include: The cover assembly according to any one of claims 11 to 15.

17. The household appliance according to claim 16, characterized in that: The household appliance is a food processor.

Images