CN214595537U - Lid assembly and cooking utensil - Google Patents

Abstract

The utility model provides a lid subassembly and cooking utensil. The cover body assembly includes: the face cover is provided with an air outlet; the surface cover is arranged above the cover body; the steam valve is clamped with the cover body and is positioned below the face cover, a steam cavity is enclosed between the steam valve and the face cover, the steam valve is provided with a pressure relief hole, and gas entering the pressure relief hole is exhausted from the gas outlet hole after passing through the steam cavity. The utility model provides a steam valve among the prior art have the problem that the structure is complicated, assembly efficiency is low.

Description

Lid assembly and cooking utensil

Technical Field

The utility model relates to a household electrical appliances technical field particularly, relates to a lid subassembly and cooking utensil.

Background

Current electric rice cooker generally includes a kind of deep pot body subassembly and a kind of deep pot lid subassembly, and for the convenience of washing, a kind of deep pot lid subassembly is including a kind of deep pot lid, detachable heat preservation apron and steam valve, need tear down the washing to heat preservation apron and steam valve during the washing, need come back heat preservation apron and steam valve dress after wasing again, and this kind of structural part is many, and the structure is more complicated, and production and assembly efficiency are low.

That is to say, the steam valve in the prior art has the problems of complex structure and low assembly efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a lid subassembly and cooking utensil to there is the problem that the structure is complicated, assembly efficiency is low in the steam valve of solving among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a cover assembly including: the face cover is provided with an air outlet; the surface cover is arranged above the cover body; the steam valve is clamped with the cover body and is positioned below the face cover, a steam cavity is enclosed between the steam valve and the face cover, the steam valve is provided with a pressure relief hole, and gas entering the pressure relief hole is exhausted from the gas outlet hole after passing through the steam cavity.

Further, the steam valve has the joint structure that is used for with the lid joint, and the joint structure is one or more, and when the joint structure was a plurality of, a plurality of joint structures set up along the circumference interval of steam valve.

Furthermore, the joint structure is the protruding muscle of joint or joint recess, and the protruding muscle of joint and joint recess extend along the circumference of steam valve, and the lid has with joint structure complex joint spare.

Further, the clamping structure is located at one end of the steam valve close to the face cover.

Further, the part of the steam valve below the cover body is provided with a handle buckling position.

Further, the steam valve includes: the cylinder body section is provided with openings at two ends; the bottom plate section, the opening of the bottom of bottom plate section shutoff barrel section to enclose into the steam chamber between messenger's steam valve and the face lid, the pressure release hole sets up on the bottom plate section, and in the mounting hole of the top of barrel section inserted the lid, the one end that the barrel section stretched into the lid top had the joint structure.

Further, the periphery of the cylinder section has a stop flange extending around the circumference of the cylinder section, which stops under the cover.

Furthermore, a part of the cylinder body section, which is located below the limiting flange, is provided with a handle position by taking the limiting flange as a boundary.

Furthermore, a fool-proof structure is arranged on the part, located above the limiting flange, of the cylinder section by taking the limiting flange as a boundary.

Furthermore, the limiting flange is used as a boundary, the part of the cylinder section, which is positioned above the limiting flange, is provided with a fool-proof structure, and the fool-proof structure and the handle are positioned on the same side of the cylinder section.

Furthermore, the fool-proof structure is a fool-proof groove or a fool-proof protrusion, and the cover body is provided with a fool-proof piece matched with the fool-proof groove or the fool-proof protrusion.

Further, the pressure relief hole is disposed off-center of the bottom of the steam valve.

Further, the pressure relief hole is an arc-shaped hole extending along the circumferential direction of the steam valve.

Furthermore, a flow guide structure is arranged in the steam cavity and used for planning a flow path of gas in the steam cavity.

Furthermore, the pressure relief hole is located on one side of the flow guide structure, so that the surface of the flow guide structure close to one side of the pressure relief hole is used as a flow guide surface.

Furthermore, the water conservancy diversion structure includes riser section and diaphragm section, and the diaphragm section sets up in the riser section one end that is close to the face lid to constitute the water conservancy diversion region between messenger's riser section and the diaphragm section.

Further, the transverse plate section extends out towards one side where the pressure relief hole is located.

Further, the flow guide structure extends out of the face cover around the edge of the pressure relief hole.

Furthermore, an overflowing gap is formed between the flow guide structure and the surface cover.

Furthermore, an overflowing gap is formed between the flow guide structure and the inner side wall of the steam valve.

According to another aspect of the present invention, there is provided a cooking appliance, the cooking appliance including: the cover body assembly is the cover body assembly; the cover body assembly covers the cooker body assembly to form a cooking space between the cooker body assembly and the cover body assembly.

By applying the technical proposal of the utility model, the cover body component comprises a surface cover, a cover body and a steam valve, and the surface cover is provided with an air outlet; the surface cover is arranged above the cover body; the steam valve is clamped with the cover body and is positioned below the face cover and encloses a steam cavity with the face cover, so that the steam valve is hidden inside the cover body component instead of being exposed on the face cover, and the appearance of the cooking utensil is more concise and attractive. Meanwhile, the steam valve and the cover body are fixedly assembled in a clamped mode, so that the steam valve is easy to install, the installation and disassembly difficulty is reduced, the disassembly and assembly time is saved, and the assembly efficiency is greatly improved. And can guarantee the assembly strength of steam valve and lid, guarantee the stability of steam valve and lid assembly, and then guarantee the stability of steam valve work. The steam valve has the pressure release hole, and the gas that gets into in the pressure release hole is discharged by the venthole behind the steam chamber, sets up like this and plans gaseous flow channel, guarantees that the gas in the cooking utensil can effectively be derived, has improved lid assembly's use reliability.

In addition, the steam cavity of this application forms between steam valve and face lid, sets up like this and has effectively simplified the structure of steam valve for the structure of steam valve is comparatively simple, has saved the quantity of assembly part, has practiced thrift the cost. Meanwhile, the steam valve is easy to manufacture due to the arrangement, the processing difficulty of the steam valve is reduced, and the production efficiency of the steam valve is effectively improved. And the user of being convenient for dismantles the steam valve and gets off and wash, is favorable to guaranteeing the clean nature of lid and steam valve, guarantees the result of use of steam valve.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a cooking appliance according to an alternative embodiment of the present invention;

FIG. 2 shows a schematic structural view of the cover of FIG. 1;

FIG. 3 shows a schematic view of the steam valve of FIG. 1;

FIG. 4 shows a schematic view of another angle of the steam valve of FIG. 3;

fig. 5 shows a schematic view of the steam valve of fig. 4 assembled with the cover of fig. 2.

Wherein the figures include the following reference numerals:

10. a cover assembly; 11. a face cover; 111. an air outlet; 12. a cover body; 121. clamping the groove; 122. a fool-proof projection; 13. a steam valve; 131. a pressure relief vent; 132. clamping the convex ribs; 133. a hand buckling position; 134. a barrel section; 135. a floor section; 136. a limiting flange; 137. a fool-proof groove; 138. a flow guide structure; 1381. a riser section; 1382. a transverse plate section; 139. a through hole; 1310. a rubber plug; 14. a thermal insulation board; 20. a pot body assembly.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that there is the steam valve among the prior art that the structure is complicated, assembly efficiency is low, the utility model provides a lid subassembly and cooking utensil.

Example one

As shown in fig. 1 to 5, the cover assembly 10 includes a cover 11, a cover 12 and a steam valve 13, wherein the cover 11 is provided with an air outlet 111; the face cover 11 is arranged above the cover body 12; the steam valve 13 is clamped with the cover body 12 and is positioned below the face cover 11 and encloses a steam cavity with the face cover 11, the steam valve 13 is provided with a pressure relief hole 131, and gas entering the pressure relief hole 131 is exhausted from the gas outlet 111 after passing through the steam cavity.

The steam valve 13 is clamped with the cover body 12 and is positioned below the surface cover 11 and encloses a steam cavity with the surface cover 11, so that the steam valve 13 is hidden inside the cover body assembly 10 instead of being exposed on the surface cover 11, and the appearance of the cooking utensil is simpler and more attractive. Meanwhile, the steam valve 13 and the cover body 12 are fixedly assembled in a clamped mode, so that the steam valve 13 is easy to install, the installation and disassembly difficulty is reduced, the disassembly and assembly time is saved, and the assembly efficiency is greatly improved. And can guarantee the assembly intensity of steam valve 13 and lid 12, guarantee the stability of steam valve 13 and lid 12 assembly, and then guarantee the stability of steam valve 13 work. Steam valve 13 has pressure release hole 131, and the gas that gets into in the pressure release hole 131 is discharged by venthole 111 behind the steam cavity, sets up the flow path who plans gaseous like this, guarantees that the gas in the cooking utensil can effectively be derived, has improved lid subassembly 10's use reliability.

In addition, the steam cavity of this application forms and has effectively simplified the structure of steam valve 13 between steam valve 13 and face lid 11 like this setting for steam valve 13's structure is comparatively simple, has saved the quantity of assembly part, has practiced thrift the cost. Meanwhile, the steam valve 13 is easy to manufacture due to the arrangement, the processing difficulty of the steam valve 13 is reduced, and the production efficiency of the steam valve 13 is effectively improved. And the user of being convenient for dismantles steam valve 13 and gets off and wash, is favorable to guaranteeing the clean nature of lid 12 and steam valve 13, guarantees steam valve 13's result of use.

Specifically, steam valve 13 has the joint structure that is used for with lid 12 joint, and the joint structure is one or more, and when the joint structure is a plurality of, a plurality of joint structures set up along steam valve 13's circumference interval. A plurality of joint structures set up along steam valve 13's circumference interval, set up the quantity that has increased the joint structure like this, increased steam valve 13 and lid 12's joint intensity simultaneously, reduced steam valve 13 and rocked or with the lid 12 possibility that breaks away from, guaranteed steam valve 13 and lid 12's assembly stability. In addition, a plurality of joint structures are the interval setting, set up like this and can guarantee that every joint structure can both independent work, have avoided mutual interference between two adjacent joint structures in a plurality of joint structures, have guaranteed the job stabilization nature of joint structure.

As shown in fig. 3, the clamping structure is a clamping rib 132, the clamping rib 132 extends along the circumferential direction of the steam valve 13, and the cover 12 has a clamping member matched with the clamping structure. The clamping member is a clamping groove 121 formed in the cover 12. Set up like this and make the protruding muscle 132 of joint and the cooperation of joint recess 121 to realize the stable assembly of steam valve 13 and lid 12, be favorable to guaranteeing the assembly strength of steam valve 13 and lid 12.

It should be noted that, the number of the clamping convex ribs 132 is three, and different numbers of clamping convex ribs 132 can be set according to actual situations, and the clamping convex ribs 132 are in interference fit with the clamping grooves 121.

Specifically, the snap structure is located at one end of steam valve 13 near face cover 11. The clamping structure is convenient to manufacture, the processing difficulty of the clamping structure on the steam valve 13 is reduced, and the clamping assembly of the steam valve 13 and the cover body 12 is convenient, so that the steam valve is convenient to disassemble and assemble. Simultaneously, the arrangement position of the clamping structure is planned, so that the position of the clamping structure is more reasonable, and the use reliability of the clamping structure is improved.

As shown in fig. 4, the steam valve 13 has a catch position 133 at a portion below the cover 12. Set up like this and make user's accessible attacker position 133 realize the dismantlement and the installation of steam valve 13, the user of being convenient for dismantles steam valve 13 and gets off and wash, has reduced the washing degree of difficulty for steam valve 13's cleaning work is more convenient.

Specifically, the steam valve 13 includes a cylinder section 134 and a bottom plate section 135, and both ends of the cylinder section 134 have openings; the bottom plate section 135 seals the opening at the bottom of the cylinder section 134, so that a steam cavity is enclosed between the steam valve 13 and the face cover 11, the pressure relief hole 131 is formed in the bottom plate section 135, the top end of the cylinder section 134 is inserted into the mounting hole of the cover 12, and the end of the cylinder section 134 extending into the upper part of the cover 12 is provided with a clamping structure. The arrangement plans the arrangement positions of the pressure relief hole 131 and the clamping structure, and improves the use reliability of the pressure relief hole 131 and the clamping structure. Meanwhile, the structure of the steam valve 13 is simpler, the assembly parts of the steam valve 13 are saved, the cost is saved, and the assembly efficiency is improved. Moreover, the steam valve 13 is easy to manufacture due to the arrangement, the processing difficulty of the steam valve 13 is reduced, and the production efficiency of the steam valve 13 is effectively improved. And the user of being convenient for dismantles steam valve 13 and gets off and wash, is favorable to guaranteeing the clean nature of lid 12 and steam valve 13, guarantees steam valve 13's result of use.

Specifically, the outer periphery of the barrel section 134 has a stop flange 136 extending around the circumference of the barrel section 134, the stop flange 136 stopping under the cover 12. Set up like this and make between limit flange 136 and the joint structure joint clearance has been formed, when the joint structure of steam valve 13 and lid 12 joint spare carry out joint assembly, limit flange 136 has played the spacing effect of backstop, can avoid steam valve 13 roll-off from lid 12, make lid 12 can the joint between joint structure and limit flange 136, can prevent effectively that steam valve 13 from rocking and the condition that breaks away from with lid 12 from taking place in cooking utensil working process, the assembly stability of steam valve 13 and lid 12 has been improved, the job stabilization nature of steam valve 13 has been strengthened.

Specifically, the part of the cylinder section 134 located below the limit flange 136 is provided with a handle position 133 by taking the limit flange 136 as a boundary. The handle 133 extends along the height direction of the cylinder section 134, one end of the handle 133 extends to the position of the limiting flange 136, and the other end of the handle 133 is spaced from the bottom plate section 135. The hand buckling position 133 is exposed below the cover body 12, so that the user can conveniently buckle the hand buckling position 133 to detach and install the steam valve 13, the user can conveniently detach the steam valve 13 to clean the steam valve, and the cleaning work of the steam valve 13 is more convenient.

As shown in fig. 3 and 4, the limiting flange 136 is used as a boundary, a fool-proof structure is disposed on a portion of the cylinder section 134 above the limiting flange 136, the fool-proof structure extends along a height direction of the cylinder section 134, one end of the fool-proof structure extends to a top end of the cylinder section 134, and the other end of the fool-proof structure is spaced from the limiting flange 136. Set up like this and make the fool-proof structure play the effect of preventing slow-witted for can assemble steam valve 13 to lid 12 through pressing the action according to the fool-proof structure when installation steam valve 13, make steam valve 13's installation change in the operation, guaranteed steam valve 13's stable assembly simultaneously. The fool-proof structure and the gripping location 133 are located on the same side of the barrel section 134. The setting plan like this has prevented slow-witted structure and has detained the position that sets up of hand position 133, has improved the use reliability of preventing slow-witted structure and detaining hand position 133, is favorable to the user to detain hand position 133 simultaneously and carries out the dismantlement of steam valve 13 for steam valve 13's dismouting is easier.

It should be noted that the fool-proof structure and the handle 133 may also be located on different sides of the cylinder section 134, and may be set according to specific situations.

The assembly of the steam valve 13 is not limited to the pressing operation, but other operations such as inserting the steam valve 13 and the locking groove 121 of the lid 12 in a staggered manner, and rotating the steam valve to fix the locking groove 121 and the locking rib 132 in an interference manner may also satisfy the assembly requirements.

Specifically, the fool-proof structure is a fool-proof groove 137, and the lid 12 has a fool-proof member cooperating with the fool-proof groove 137. The fool-proof member is a fool-proof protrusion 122. This arrangement is beneficial to ensuring the fool-proof function of the fool-proof groove 137 and ensuring the correct assembly of the steam valve 13.

As shown in fig. 5, the relief hole 131 is provided off-center of the bottom of the steam valve 13. Specifically, the pressure relief hole 131 is an arc-shaped hole extending in the circumferential direction of the steam valve 13. Set up like this and increased the flow area of pressure release hole 131 for produced most steam can get into the steam chamber through pressure release hole 131 in the cooking utensil and then derive from venthole 111, has improved the derivation efficiency of steam, has guaranteed the effect of pressure release hole 131 pressure release and steam release, has improved pressure release hole 131's use reliability.

Specifically, a flow guide structure 138 is arranged in the steam cavity, and the flow guide structure 138 is used for planning a flow path of gas in the steam cavity. The pressure relief hole 131 is located at one side of the flow guide structure 138, so that the surface of the flow guide structure 138 near the pressure relief hole 131 serves as a flow guide surface. The diversion structure 138 comprises a vertical plate section 1381 and a horizontal plate section 1382, wherein the horizontal plate section 1382 is arranged at one end of the vertical plate section 1381 close to the surface cover 11, so that a diversion area is formed between the vertical plate section 1381 and the horizontal plate section 1382.

Specifically, the cross plate section 1382 extends toward the side of the pressure relief hole 131. The guide 138 extends around the edge of the pressure relief hole 131 toward the face cover 11. Set up like this and make horizontal plate section 1382 shelter from partial pressure release hole 131 for steam in the pot flows to venthole 111 by pressure release hole 131 entering the water conservancy diversion region in the steam chamber then bypass horizontal plate section 1382 back, and then derives from venthole 111, makes water conservancy diversion structure 138 play the effect of transition and water conservancy diversion, avoids the steam in the cooking utensil directly to spout from venthole 111, leads to the condition of potential safety hazard, has guaranteed the stability and the security that steam derived in the pot.

As shown in fig. 1, an overflow gap is formed between the flow guiding structure 138 and the surface cover 11. Set up like this and make between water conservancy diversion structure 138 and the face lid 11 interval set up for steam through water conservancy diversion structure 138 can be followed the clearance of overflowing and passed through and then flow to venthole 111, has guaranteed the validity that steam derived, has guaranteed the use reliability and the job stabilization nature of water conservancy diversion structure 138.

Specifically, an overflow gap is formed between the flow guide structure 138 and the inner side wall of the steam valve 13. Set up like this and make between the inside wall of water conservancy diversion structure 138 and steam valve 13 the interval setting for leave great space between the inside wall of water conservancy diversion structure 138 and steam valve 13, the passing through of the steam of being convenient for, set up like this and guaranteed the derivation efficiency of steam valve 13 when guaranteeing the transition of water conservancy diversion structure 138 and the effect of water conservancy diversion, the condition that can not make the culinary art space suppress the pressure takes place, is favorable to guaranteeing the stability of cooking utensil work.

It should be noted that the center of the bottom plate section 135 of the steam valve 13 further has a plurality of through holes 139 filled with the rubber plug 1310, and the plurality of through holes 139 includes the through hole 139 disposed at the center of the bottom plate section 135 and four through holes 139 disposed at intervals around the circumference of the central through hole 139. Through the setting of through-hole 139, be favorable to the backward flow of steam intracavity comdenstion water, avoid the risk of steam intracavity formation ponding.

It should be noted that the cover assembly 10 further includes a heat insulation plate 14, and the heat insulation plate 14 is disposed on a surface of the cover 12 facing the cooking space and is closely attached to the cover 12. The arrangement enables the heat insulation plate 14 to play a heat insulation role, and the heat insulation performance of the cooking utensil is guaranteed.

As shown in fig. 1, the cooking utensil includes a lid assembly 10 and a pot body assembly 20, the lid assembly 10 is the above lid assembly 10; the lid assembly 10 is covered on the pot body assembly 20 to form a cooking space therebetween. The cooking utensil with the cover body assembly 10 can ensure that the appearance of the cooking utensil is simpler and more attractive, meanwhile, the cover body assembly 10 has the advantages of simple structure and low cost, the cleaning work of the cover body assembly 10 can be more convenient, and the cleanness of the cooking utensil is favorably ensured.

Example two

The difference from the first embodiment is that the clamping structure is not the clamping rib 132, but the clamping groove.

Specifically, the joint structure is the joint recess, and the joint recess extends along steam valve 13's circumference, and lid 12 has with joint structure complex joint spare. The clamping member may be a clamping protrusion provided on the cover 12. Set up like this and make convex muscle of joint and the cooperation of joint recess to realize the stable assembly of steam valve 13 and lid 12, be favorable to guaranteeing the assembly strength of steam valve 13 and lid 12.

EXAMPLE III

The difference from the first embodiment is that the fool-proof structure is not the fool-proof groove 137 but a fool-proof protrusion.

Specifically, the fool-proof structure is a fool-proof protrusion, and the lid 12 has a fool-proof member cooperating with the fool-proof protrusion. The fool-proof piece is a fool-proof groove. This arrangement is beneficial to ensuring the fool-proof function of the fool-proof protrusion and ensuring the correct assembly of the steam valve 13.

It should be noted that, in the solution of providing the fool-proof protrusion on the steam valve 13, since the fool-proof groove needs to be provided on the cover 12, the appearance of the cover 12 is affected to some extent, which is not as beautiful as the solution shown in the first embodiment.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

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

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (21)

1. A cover assembly, comprising:

the air outlet cover (11) is arranged on the face cover (11), and an air outlet hole (111) is formed in the face cover (11);

a cover body (12), wherein the surface cover (11) is arranged above the cover body (12);

steam valve (13), steam valve (13) with lid (12) joint and be located the below of face lid (11) and with enclose into the steam chamber between face lid (11), steam valve (13) have pressure release hole (131), get into gas in pressure release hole (131) is through behind the steam chamber by venthole (111) are discharged.

2. The cover body assembly according to claim 1, wherein the steam valve (13) is provided with one or more clamping structures for clamping with the cover body (12), and when the clamping structures are multiple, the clamping structures are arranged at intervals along the circumferential direction of the steam valve (13).

3. The cover body assembly of claim 2, wherein the clamping structure is a clamping rib (132) or a clamping groove, the clamping rib (132) and the clamping groove extend along the circumferential direction of the steam valve (13), and the cover body (12) is provided with a clamping piece matched with the clamping structure.

4. Cover assembly according to claim 2, wherein the snap-fit structure is located at an end of the steam valve (13) close to the face cover (11).

5. The cover assembly of claim 1, wherein a portion of the steam valve (13) below the cover (12) has a catch position (133).

6. Cover assembly according to claim 2, characterized in that the steam valve (13) comprises:

a barrel section (134), the barrel section (134) having openings at both ends;

the steam valve comprises a bottom plate section (135), the bottom plate section (135) seals an opening in the bottom of the cylinder section (134) so that the steam valve (13) and the face cover (11) enclose a steam cavity, a pressure relief hole (131) is formed in the bottom plate section (135), the top end of the cylinder section (134) is inserted into the mounting hole of the cover body (12), and one end, above the cover body (12), of the cylinder section (134) extends into the clamping structure.

7. The cover assembly of claim 6, wherein the outer periphery of the barrel section (134) has a stop flange (136) extending circumferentially around the barrel section (134), the stop flange (136) stopping under the cover (12).

8. The cover assembly of claim 7, wherein a portion of the barrel section (134) below the retention flange (136) is provided with a catch (133) bounded by the retention flange (136).

9. The cover assembly of claim 7, wherein a portion of the barrel section (134) above the retention flange (136) is provided with a fool-proof structure bounded by the retention flange (136).

10. The cover assembly of claim 8, wherein a portion of the barrel section (134) above the position-defining flange (136) is bounded by the position-defining flange (136) and is provided with a fool-proofing structure, the fool-proofing structure and the catch position (133) being located on the same side of the barrel section (134).

11. The cover assembly according to claim 9 or 10, wherein the fool-proof structure is a fool-proof groove (137) or a fool-proof protrusion, and the cover (12) has a fool-proof piece cooperating with the fool-proof groove (137) or the fool-proof protrusion.

12. Cover assembly according to any one of claims 1 to 10, wherein the pressure relief vent (131) is arranged off-centre of the bottom of the steam valve (13).

13. The cover assembly of claim 12, wherein the pressure relief hole (131) is an arc-shaped hole extending along a circumferential direction of the steam valve (13).

14. The cover assembly according to any one of claims 1 to 10, wherein a flow guide structure (138) is arranged in the steam chamber, the flow guide structure (138) being used for planning a flow path of gas in the steam chamber.

15. The cover assembly of claim 14, wherein the pressure relief hole (131) is located on one side of the flow guide structure (138), such that a surface of the flow guide structure (138) on the side close to the pressure relief hole (131) serves as a flow guide surface.

16. The cover assembly of claim 14, wherein the flow directing structure (138) includes a riser section (1381) and a cross-plate section (1382), the cross-plate section (1382) being disposed at an end of the riser section (1381) proximate the face cover (11) such that a flow directing region is defined between the riser section (1381) and the cross-plate section (1382).

17. The cover assembly of claim 16, wherein said cross-piece (1382) projects towards a side of said vent hole (131).

18. The cover assembly of claim 14, wherein the flow guide structure (138) extends around an edge of the pressure relief hole (131) toward the face cover (11).

19. The cover assembly of claim 14, wherein an overflow gap is formed between the flow directing structure (138) and the face cover (11).

20. The cover assembly of claim 14, wherein an overflow gap is formed between the flow directing structure (138) and an inner side wall of the steam valve (13).

21. A cooking appliance, characterized in that it comprises:

a cover assembly (10), the cover assembly (10) being the cover assembly (10) of any one of claims 1 to 20;

a pot body assembly (20), the lid assembly (10) is covered on the pot body assembly (20) to form a cooking space therebetween.

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