CN215838459U - Steam valve and have its cooking utensil - Google Patents

Abstract

The utility model discloses a steam valve and a cooking utensil with the same, wherein the steam valve comprises a steam valve upper cover, a steam valve cover and a first sealing ring, and the steam valve upper cover is provided with a steam valve upper cover hole; the steam valve cover is arranged on the upper side of the steam valve upper cover and is provided with a positioning column; the first sealing ring is clamped between the steam valve upper cover and the steam valve cover, a first sealing ring hole is formed in the first sealing ring, the positioning column penetrates through the first sealing ring hole downwards and penetrates out of the lower portion of the steam valve upper cover hole, and the penetrating-out portion of the positioning column is connected to the steam valve upper cover in a welding mode. The steam valve provided by the utility model can enable the connection structure between the steam valve cover and the steam valve upper cover to be more stable and reliable, even if the steam valve cover is heated or stressed to deform, the stable connection between the steam valve cover and the steam valve upper cover can be ensured, a sealing ring between the steam valve cover and the steam valve upper cover can be always kept in a clamped state, the sealing between the steam valve cover and the steam valve upper cover is ensured to be more stable and reliable, and the sealing effect is better.

Description

Steam valve and have its cooking utensil

Technical Field

The utility model relates to the technical field of kitchen electrical appliances, in particular to a steam valve and a cooking appliance with the same.

Background

There are cooking appliances such as rice cookers, which are generally provided with a steam valve on a lid body. The steam valve generally comprises a steam valve upper cover, a steam valve lower cover and a sealing ring; some also include a steam valve cover. The steam valve cover can be located on an upper side of the steam valve upper cover. A sealing ring can be clamped between the steam valve upper cover and the steam valve cover to ensure the sealing effect between the steam valve upper cover and the steam valve cover.

However, the steam valve cover is generally fastened to the steam valve cover by means of screws or snap-fits. Adopt above-mentioned fixed mode, although can ensure the structural strength of steam valve, the steam valve bonnet produces the deformation very easily because of its material receives high temperature steam's influence when using, and the steam valve bonnet after the deformation makes its and steam valve upper cover between the fastening effect not good, can make sealing failure between the two to in liquid such as water, steam get into the steam valve bonnet easily, influence product quality and user's use experience.

Therefore, a steam valve and a cooking appliance having the same are needed to at least partially solve the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content of the present invention is not intended to define key features or essential features of the claimed solution, nor is it intended to be used to limit the scope of the claimed solution.

To at least partially solve the above problems, the present invention provides a steam valve for a cooking appliance, comprising:

the steam valve upper cover is provided with a steam valve upper cover hole;

the steam valve cover is arranged on the upper side of the steam valve upper cover and provided with a positioning column; and

the first sealing ring is clamped between the steam valve upper cover and the steam valve cover and is provided with a first sealing ring hole,

the positioning column penetrates through the first sealing ring hole downwards and penetrates out of the lower portion of the steam valve upper cover hole, and the penetrating portion of the positioning column is connected to the steam valve upper cover in a welding mode.

According to the scheme, the connecting structure between the steam valve cover and the steam valve upper cover can be more stable and reliable, and even if the steam valve cover is heated or stressed to deform, the stable connection between the steam valve cover and the steam valve upper cover can be ensured; therefore, the sealing ring between the steam valve cover and the steam valve upper cover can be always kept in a clamped state, the sealing between the steam valve cover and the steam valve upper cover is more stable and reliable, the sealing effect is better, and liquid and steam such as water are prevented from easily entering the steam valve cover. The steam valve of this embodiment, its sealing performance under high temperature environment is more reliable and more stable to can promote product quality and user's use experience.

Optionally, the part of wearing out of reference column forms protruding portion through the welding, protruding portion joint or welding extremely the lower surface of steam valve upper cover.

According to the scheme, the positioning column can be stably fixed to the steam valve upper cover by means of the convex-connecting part, and the positioning column is prevented from loosening relative to the steam valve upper cover or being upwards separated from a steam valve upper cover hole; in the scheme that the convex connection part is clamped to the lower surface of the upper cover of the steam valve, the steam valve cover can be made of a material different from that of the upper cover of the steam valve, so that the design freedom degree of the steam valve can be improved; in the scheme that the convex portion is welded to the lower surface of the steam valve upper cover, the convex portion can be integrated with the steam valve upper cover to provide a more stable connecting structure.

Optionally, the convex portion has a circle of peripheral portion, the peripheral portion surrounds the steam valve upper cover hole and the steam valve upper cover is connected at the lower surface of the edge of the steam valve upper cover hole.

According to this scheme, protruding portion and the connection structure between the steam valve upper cover can be more firm, make the reference column for the difficult not hard up or difficult follow steam valve upper cover hole upwards deviate from of steam valve upper cover.

Optionally, the piercing part has a piercing dimension protruding from the lower surface of the steam valve upper cover before welding, and the piercing dimension is greater than or equal to 3 mm.

According to this scheme, the size of the protruding portion that forms after the welding is better, can provide more reliable and more stable connection structure.

Optionally, the positioning column is in interference fit with the first seal ring hole;

and/or the positioning column is a solid column or a hollow column.

According to the scheme, the positioning column can be tightly attached to the inner surface of the first sealing ring hole, so that the sealing performance of the steam valve cover at the first sealing ring hole can be improved; in the scheme that the positioning column is a solid column, the steam valve cover is simple in structure and convenient to produce and manufacture; in the scheme that the positioning column is a hollow column, a convex connection part is formed after welding is facilitated.

Optionally, the first sealing ring comprises two sealing ring side walls arranged at intervals and extending vertically and a sealing ring top wall connecting the two sealing ring side walls, and the first sealing ring hole is formed in the sealing ring top wall.

According to the scheme, on the one hand, the first sealing ring hole can be conveniently formed, on the other hand, the first sealing ring can provide larger elastic deformation capacity, the positioning column is more favorable in the embodiment that the positioning column is clamped to the upper cover of the steam valve, and the formed convex connection part can be tightly attached to the lower surface of the upper cover of the steam valve due to the elastic force of the first sealing ring after welding.

Optionally, the steam valve cover is made of a transparent or translucent material;

and/or the steam valve cover and the steam valve upper cover are made of different materials.

According to this scheme, can promote the design degree of freedom of steam valve, promote user's use and experience.

Optionally, the positioning column extends vertically, and the first seal ring hole corresponds to the steam valve upper cover hole up and down.

According to this scheme, can conveniently penetrate first seal ring hole and steam valve upper cover hole with the reference column in proper order, the simple easy operation of assembling process.

Optionally, the steam valve cover is provided with a central hole, the steam valve cover comprises an inner peripheral wall enclosing the central hole and an outer peripheral wall arranged at intervals with the inner peripheral wall, and the inner peripheral wall is provided with a plurality of positioning columns arranged at intervals.

According to the present aspect, a seal structure may be formed at the inner periphery of the steam valve housing to prevent liquid, such as water, and steam from entering the steam valve housing from the inner periphery of the steam valve.

Optionally, the size of the positioning column in the horizontal direction is smaller than the wall thickness of the inner circumferential wall;

and/or steam valve upper cover is provided with the steam vent, the steam vent is located the centre bore, the steam valve still includes the second sealing washer, the second sealing washer presss from both sides tightly be in the periphery wall with between the steam valve upper cover.

According to the scheme, the lower surface of the part, surrounding the positioning column, of the steam valve cover can be abutted to the upper surface of the first sealing ring, so that the sealing performance of the steam valve cover at the position of the first sealing ring hole can be improved; a seal may be formed at the periphery of the steam valve housing to prevent liquid, such as water, steam from entering the steam valve housing from the periphery of the steam valve.

Optionally, the steam valve cover further comprises a steam valve lower cover, the steam valve lower cover is arranged on the lower side of the steam valve upper cover, and the peripheral wall is connected with the steam valve upper cover or the steam valve lower cover.

According to this scheme, the periphery of steam valve bonnet both can be fixed to the steam valve upper cover, also can be fixed to the steam valve lower cover, can set up the fixed mode of steam valve bonnet as required, makes its design demand that satisfies different steam valves.

Optionally, the outer peripheral wall is connected with the steam valve upper cover or the steam valve lower cover through at least one of clamping, threaded connection, fastener fixation and welding; and/or the steam valve upper cover is detachably connected with the steam valve lower cover through at least one of clamping connection, threaded connection and fastener fixation.

According to the scheme, the fixing mode of the periphery of the steam valve cover and the upper steam valve cover or the lower steam valve cover can be selected as required, and the fixing mode of the upper steam valve cover and the lower steam valve cover can be selected, wherein for the embodiment that the periphery of the steam valve cover is welded to the upper steam valve cover, the connecting structure between the steam valve cover and the upper steam valve cover can be further more stable and reliable, and the stable connection between the steam valve cover and the upper steam valve cover can be ensured even if the steam valve cover is heated or stressed to deform; therefore, the sealing ring between the steam valve cover and the steam valve upper cover can be kept in a clamped state all the time, the sealing between the steam valve cover and the steam valve upper cover is more stable and reliable, and the sealing effect is better.

According to another aspect of the present invention there is provided a cooking appliance comprising a steam valve according to any one of the above aspects.

Drawings

The following drawings of the utility model are included to provide a further understanding of the utility model. The drawings illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

In the drawings:

fig. 1 is a perspective view of a cooking appliance according to a preferred embodiment of the present invention;

FIG. 2 is an exploded schematic view of the steam valve shown in FIG. 1;

FIG. 3 is a cross-sectional schematic view of the steam valve shown in FIG. 2, wherein the locating posts are not heat staked;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view similar to FIG. 4, wherein the positioning posts are heat fused to form the raised portions;

FIG. 6 is a schematic perspective view of the steam valve cover shown in FIG. 2 in an inverted state;

FIG. 7 is a perspective view of the first seal ring shown in FIG. 2 in an inverted state;

FIG. 8 is a schematic perspective view of the steam valve cover shown in FIG. 2;

fig. 9 is another cross-sectional schematic view of the steam valve shown in fig. 2.

Description of reference numerals:

10: the pot body 20: cover body

100: the steam valve 110: steam valve upper cover

111: steam exhaust port 112: steam valve upper cover hole

113: the chucking hole 114: the first groove

115: second groove 120: steam valve cover

121: positioning post 122: piercing-out part

123: the convex portion 124: peripheral edge part

125: center hole 126: inner peripheral wall

127: outer peripheral wall 128: buckle

130: first seal ring 131: first seal ring hole

132: seal ring side wall 133: sealing ring top wall

140: steam valve lower cover 150: second seal ring

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

In the following description, a detailed description will be given in order to thoroughly understand the present invention. It is apparent that the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the utility model, however, the utility model is capable of other embodiments in addition to those detailed.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for purposes of illustration only and are not limiting.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

The present invention provides a cooking appliance, as shown in fig. 1, which includes a pot body 10 and a lid body 20. The pot body 10 has a cylindrical inner pot housing portion. The inner pot can be fixedly arranged at the inner pot containing part, or can be freely put into the inner pot containing part or taken out from the inner pot containing part, so that the inner pot can be conveniently cleaned. The inner pot is generally made of a metal material and has a circular opening on an upper surface for containing a material to be heated, such as rice, soup, etc. The pot body 10 includes therein heating means for heating the inner pot, such as a heat generating plate, to heat the inner pot.

It is understood that the cooking appliance according to the present invention may be an electric rice cooker, an electric pressure cooker or other cooking appliances, and the cooking appliance may have various functions such as cooking porridge, etc. in addition to the function of cooking rice.

The lid body 20 has a shape substantially corresponding to the pot body 10. The lid 20 is openably and closably provided on the pot body 10, and specifically, it is pivoted to the pot body 10 by a pivot shaft, and can be freely pivoted about the pivot axis where the pivot shaft is located between a closed position and an open position with respect to the pot body 10, so as to facilitate the closing and opening of the pot body 10. When the lid 20 is closed on the pot body 10, it covers the inner pot, and a cooking space is formed between the inner pot and the lid. The lid body 20 also typically has a pot mouth seal, which may be made of, for example, a rubber material, disposed between the lid body 20 and the inner pot for sealing the cooking space when the lid body 20 is in the closed position.

According to another aspect of the present invention, there is provided a steam valve 100, and the steam valve 100 can be disposed on the cover body 20 for exhausting steam inside the cooking space to the outside environment. As shown in fig. 2 and 3, the steam valve 100 may include a steam valve upper cover 110, a steam valve cover 120, and a first sealing ring 130. The steam valve upper cover 110 may be provided with a steam discharge port 111 for communicating with the external environment. The steam valve cover 120 may be disposed on an upper side of the steam valve cover 110, and may cover at least a portion of the steam valve cover 110, for example, the steam valve cover 120 is shown covering a portion of the steam valve cover 110 where the steam outlet 111 is not disposed. A first seal ring 130 can be clamped between the steam valve upper cover 110 and the steam valve cover 120 for providing a seal at the connection therebetween.

It will be appreciated that the first seal ring 130 is resiliently deformable; which is deformed by a clamping force between the steam valve cover 110 and the steam valve housing 120. It should be noted that directional terms used herein to describe various components, portions, etc. of the steam valve 100, such as "upper," "lower," "above," "below," "up," "down," etc., are relative to the steam valve 100 in a horizontally disposed and upright position (i.e., the steam valve shown in fig. 2 and 3).

The steam valve 100 may further include a steam valve lower cover 140. The steam valve lower cover 140 can be disposed at a lower side of the steam valve upper cover 110, and can be connected with the steam valve upper cover 110. Further, the steam valve upper cover 110 may be detachably coupled with the steam valve lower cover 140 by at least one of snapping, screwing, and fastening of fasteners such as screws. Thus, the steam valve lower cover 140 can be quickly assembled to the steam valve upper cover 110. The steam valve lower cover 140 may form a steam passage with the steam valve upper cover 110 for communicating the cooking space with the external environment.

As shown in fig. 4, the steam valve upper cover 110 may be provided with a steam valve upper cover hole 112, and the steam valve cover 120 may be provided with a positioning post 121; the first seal ring 130 may be provided with a first seal ring hole 131. The positioning post 121 can pass down through the first gasket hole 131 and out through the lower part of the steam valve upper cover hole 112. The penetrating portion 122 of the positioning post 121 may be connected to the steam valve upper cover 110 by welding.

In this embodiment, the steam valve cover 120 can be connected with the steam valve upper cover 110 at the sealing ring by welding, so that the connection structure between the steam valve cover 120 and the steam valve upper cover 110 is more stable and reliable, and even if the steam valve cover 120 is heated or deformed by stress, the stable connection between the two can be ensured; therefore, the sealing ring between the steam valve cover 120 and the steam valve upper cover 110 can be always kept in a clamped state, the sealing between the steam valve cover 120 and the steam valve upper cover 110 is ensured to be more stable and reliable, the sealing effect is better, and liquid and steam such as water are prevented from easily entering the steam valve cover 120. The steam valve 100 of the present embodiment has more stable and reliable sealing performance in a high temperature environment, so that the product quality and the user experience can be improved.

Further, the positioning column 121 may extend vertically, in other words, the positioning column 121 may be straight. The first packing hole 131 and the steam valve upper cover hole 112 can be positioned to vertically correspond to each other. Therefore, the positioning column 121 can be conveniently and sequentially inserted into the first sealing ring hole 131 and the steam valve upper cover hole 112, and the assembling process is simple and easy to operate.

As shown in fig. 5, the penetrating portion 122 of the positioning post 121 may be welded to form a convex portion 123. The welding means may be any suitable means such as thermal welding, ultrasonic welding, etc. In a preferred embodiment, the male portion 123 can be snapped to the lower surface of the steam valve upper cover 110. In this embodiment, the upper surface of the convex portion 123 abuts against the lower surface of the steam valve upper cover 110. The size of the convex portion 123 is larger than the diameter of the steam valve upper cover hole 112. By means of the convex portion 123, the positioning column 121 can be stably fixed to the steam valve upper cover 110, preventing the positioning column 121 from loosening relative to the steam valve upper cover 110 or from being pulled out upward from the steam valve upper cover hole 112. And the steam valve cover 120 may be made of a different material from the steam valve upper cover 110. In other words, the steam valve cover 120 and the steam valve cover 110 may be made of different materials. This can improve the degree of freedom in designing the steam valve 100. For example, the steam valve cover 120 may be made of a transparent or translucent material. From this, can be provided with the line that is used for decorating at the upper surface of steam valve upper cover 110, the user can see through steam valve cover 120 and observe this line, promotes the design of product and feels, makes the product more pleasing to the eye.

In other embodiments, the projection 123 can be welded to the lower surface of the steam valve upper cover 110. In this embodiment, the convex portion 123 can be fused with the steam valve upper cover 110 as one body to provide a more stable connection structure.

The male portion 123 may have a circumferential rim portion 124. Peripheral portion 124 can be contiguous with the lower surface of steam valve cover 110 at the edge of steam valve cover aperture 112, around steam valve cover aperture 112. That is, the convex portion 123 can be connected to a ring of hole edges of the steam valve upper cover hole 112. Therefore, the connection structure between the convex portion 123 and the steam valve upper cover 110 can be firmer, so that the positioning column 121 is not easy to loosen or fall out of the steam valve upper cover hole 112 upward relative to the steam valve upper cover 110.

The piercing portion 122 may have a piercing dimension L that protrudes from the lower surface of the steam valve upper cover 110 before welding. The exit dimension L may be greater than or equal to 3mm, for example, the exit dimension L may be 3mm, 3.5mm, 4mm, 4.5mm, 5mm, and the like. The positioning post 121 may be a solid post. Of course, the positioning post 121 can also be a hollow post if needed and/or desired.

The shape of the first seal ring hole 131 corresponds to the shape of the positioning post 121. For example, the positioning post 121 is a circular post, and the first gasket hole 131 is a circular hole. The positioning post 121 can be in interference fit with the first seal ring hole 131. The positioning post 121 can closely adhere to the inner surface of the first gasket hole 131, so that the sealing performance of the steam valve cover 120 at the first gasket hole 131 can be improved.

As shown in fig. 6, the steam valve cover 120 is provided with a central aperture 125. The exhaust port 111 can be located within the central bore 125. Further, the top of the steam valve cover 110 can be located in the central hole 125, and the top of the steam valve 100 is opened with a steam outlet 111. The steam valve cover 120 may include an inner circumferential wall 126 enclosing a central bore 125 and an outer circumferential wall 127 spaced from the inner circumferential wall 126. The outer peripheral wall 127 may be connected to the steam valve upper cover 110.

The lower surface of the inner peripheral wall 126 may be provided with a plurality of positioning posts 121 arranged at intervals. A plurality of positioning posts 121 are arranged in an annular array about the center line of the central bore 125. Accordingly, as shown in fig. 7, the first sealing ring 130 may be correspondingly provided with a plurality of first sealing ring holes 131, and the steam valve upper cover 110 may be correspondingly provided with a plurality of steam valve upper cover holes 112. Specifically, the figure shows 5 locating posts 121, 5 first gasket holes 131, and 5 steam valve upper cover holes 112. Thus, a sealing structure may be formed at the inner circumference of the steam valve housing 120 to prevent liquid, such as water, steam from entering the steam valve housing 120 from the inner circumference of the steam valve 100. The dimension of the positioning post 121 in the horizontal direction may be smaller than the wall thickness of the inner circumferential wall 126. The lower surface of the steam valve cover 120 at the portion surrounding the positioning post 121 can abut against the upper surface of the first sealing ring 130, so that the first sealing ring 130 has substantially the same deformation at each position. So that the sealability of the steam valve cover 120 at the first packing hole 131 can be improved.

As shown in fig. 7, the first sealing ring 130 may include two sealing ring side walls 132 arranged at intervals and extending vertically and a sealing ring top wall 133 connecting the two sealing ring side walls 132. Further, the first sealing ring 130 may have a groove shape in cross section. The first seal ring aperture 131 can be provided in the seal ring top wall 133. In this embodiment, on the one hand, it is convenient to open the first sealing ring hole 131, and on the other hand, the first sealing ring 130 can provide a larger elastic deformation capability, particularly a larger elastic deformation capability in the vertical direction, which is more advantageous in the embodiment where the positioning column 121 is clamped to the steam valve upper cover 110. When the penetrating portion 122 of the positioning post 121 is welded, the first sealing ring 130 may be pressed and deformed, and after welding, the formed protruding portion 123 may be closely attached to the lower surface of the steam valve upper cover 110 due to the elastic force of the first sealing ring 130.

The steam valve 100 may further include a second sealing ring 150. The second seal ring 150 is clamped between the outer peripheral wall 127 of the steam valve cover 120 and the steam valve upper cover 110. A sealing structure may be formed at the periphery of the steam valve housing 120 to prevent liquid, such as water, steam from entering the steam valve housing 120 from the periphery of the steam valve 100. As shown in fig. 8, the steam valve upper cover 110 may be provided with a first groove 114 and a second groove 115 that open upward. The first groove 114 is spaced apart from the second groove 115, and is closer to the center of the steam valve upper cover 110 with respect to the second groove 115. The first sealing ring 130 can be retained within the first groove 114, and the inner peripheral wall 126 of the steam valve cover 120 can partially extend into the first groove 114. The bottom of the first groove 114 is provided with a steam valve upper cover hole 112. The second seal ring 150 can be captured within the second groove 115 and the outer peripheral wall 127 of the steam valve cover 120 can extend partially into the second groove 115.

Of course, a gasket may be provided between the steam valve upper cover 110 and the steam valve lower cover 140, and the gasket may be provided on the side of the steam outlet 111 close to the center of the steam valve upper cover 110, or may be provided on the outer periphery of the steam valve upper cover 110.

Further, the peripheral wall 127 may be connected to the steam valve upper cover 110 by at least one of snapping, screwing, fastening with a fastener such as a screw, and welding. For the embodiment that the periphery of the steam valve cover 120 is welded to the steam valve upper cover 110, the connection structure between the steam valve cover 120 and the steam valve upper cover 110 can be further made more stable and reliable, and even if the steam valve cover 120 is heated or stressed to deform, the stable connection between the two can be ensured; therefore, the sealing ring between the steam valve cover 120 and the steam valve upper cover 110 can be kept in a clamped state all the time, the sealing between the steam valve cover 120 and the steam valve upper cover 110 is ensured to be more stable and reliable, and the sealing effect is better.

As shown in fig. 9, in the illustrated embodiment, the steam valve cover 120 is shown with its outer periphery snap-fitted to the steam valve cover 110. Specifically, the outer circumferential wall 127 may be provided with a catch 128, and the steam valve upper cover 110 may be provided with a catch hole 113 corresponding to the catch 128. The catch 128 can be snapped into the catch hole 113. In an embodiment not shown, the peripheral wall 127 may be connected to the steam valve lower cover 140 by at least one of snapping, screwing, fastening with fasteners such as screws, and welding.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the utility model to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (13)

1. A steam valve for a cooking appliance, comprising:

the steam valve upper cover (110), the steam valve upper cover (110) is provided with a steam valve upper cover hole (112);

the steam valve cover (120), the steam valve cover (120) is arranged on the upper side of the steam valve upper cover (110), and the steam valve cover (120) is provided with a positioning column (121); and

a first sealing ring (130), the first sealing ring (130) is clamped between the steam valve upper cover (110) and the steam valve cover (120), the first sealing ring (130) is provided with a first sealing ring hole (131),

the positioning column (121) penetrates through the first sealing ring hole (131) downwards and penetrates out of the lower portion of the steam valve upper cover hole (112), and a penetrating portion (122) of the positioning column (121) is connected to the steam valve upper cover (110) in a welding mode.

2. The steam valve as claimed in claim 1, wherein the penetrating part (122) of the positioning column (121) forms a convex part (123) by welding, and the convex part (123) is clamped or welded to the lower surface of the steam valve upper cover (110).

3. The steam valve of claim 2, wherein the male portion (123) has a rim portion (124), the rim portion (124) surrounding the steam valve cover aperture (112) meeting the lower surface of the steam valve cover (110) at the edge of the steam valve cover aperture (112).

4. A steam valve according to any of claims 1 to 3, wherein the piercing section (122) has a piercing dimension protruding from the lower surface of the steam valve upper cover (110) before welding, the piercing dimension being greater than or equal to 3 mm.

5. The steam valve of any of claims 1 to 3,

the positioning column (121) is in interference fit with the first sealing ring hole (131);

and/or the positioning post (121) is a solid post or a hollow post.

6. A steam valve according to any of claims 1-3, wherein the first sealing ring (130) comprises two vertically extending sealing ring side walls (132) arranged at a distance and a sealing ring top wall (133) connecting the two sealing ring side walls (132), the first sealing ring hole (131) being provided in the sealing ring top wall (133).

7. The steam valve of any of claims 1 to 3,

the steam valve cover (120) is made of transparent or semitransparent materials;

and/or the steam valve cover (120) and the steam valve upper cover (110) are made of different materials.

8. A steam valve according to any of claims 1-3, characterized in that the positioning column (121) extends vertically, the first gasket hole (131) corresponding up and down to the position of the steam valve upper cover hole (112).

9. A steam valve according to any of claims 1-3, characterized in that the steam valve cover (120) is provided with a central hole (125), the steam valve cover (120) comprising an inner circumferential wall (126) enclosing the central hole (125) and an outer circumferential wall (127) arranged at a distance from the inner circumferential wall (126), the inner circumferential wall (126) being provided with a plurality of the positioning posts (121) arranged at a distance.

10. The steam valve of claim 9,

the size of the positioning column (121) in the horizontal direction is smaller than the wall thickness of the inner peripheral wall (126);

and/or steam valve upper cover (110) is provided with steam vent (111), steam vent (111) are located in centre bore (125), steam valve (100) still include the second sealing washer, the second sealing washer presss from both sides tightly between periphery wall (127) and steam valve upper cover (110).

11. The steam valve of claim 9, further comprising a steam valve lower cover (140), wherein the steam valve lower cover (140) is disposed at a lower side of the steam valve upper cover (110), and the outer circumferential wall (127) is connected to the steam valve upper cover (110) or the steam valve lower cover (140).

12. The steam valve of claim 11, wherein the peripheral wall (127) is connected to the steam valve upper cover (110) or the steam valve lower cover (140) by at least one of snapping, screwing, fastening and welding; and/or the steam valve upper cover (110) is detachably connected with the steam valve lower cover (140) through at least one of clamping connection, threaded connection and fastener fixing.

13. A cooking appliance, characterized in that it comprises a steam valve (100) according to any one of claims 1 to 12.

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