WO2018032649A1 - Steam valve and cooking appliance - Google Patents

Abstract

A steam valve (100) and a cooking appliance, the steam valve (100) comprising a valve seat (1) and a valve cover (2), an air inlet (12) being arranged on the valve seat (1), the valve cover (2) covering the valve seat (1) and defining with the valve seat (1) a sealed valve chamber (3) and a buffering chamber (4) positioned on the side of the valve chamber, an air outlet (21) being arranged on the valve cover (2), and the air inlet (12) and the air outlet (21) both being in communication with the valve chamber (3). The steam valve (100) reduces the active area of the high temperature steam with the valve cover (2) and the valve seat (1), reducing the degree of thermal deformation of the steam valve (100), which is equivalent to increasing the strength of the steam valve (100), and thereby allowing the size of the steam valve (100) to be increased whilst ensuring the strength of the steam valve (100), achieving balance between the anti-overflow capability and the strength of a large steam valve.

Description

Steam valve and cooking utensils

This application is submitted to the Chinese Patent Office on November 18, 2016, the application number is 2016110242877, and the invention name is “Steam Valve and Cooking Appliance”. It was submitted to the Chinese Patent Office on November 18, 2016, and the application number is 201621252879X. Priority for Chinese patent applications filed on August 18, 2016 by the China Patent Office, application number 2016209029616, and the invention titled "Steam Valves and Cooking Appliances", the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of kitchen appliances, and more particularly to a steam valve and a cooking appliance including the steam valve.

Background technique

Existing cooking appliances such as rice cookers have small steam valves, and the anti-overflow capability of small steam valves is not ideal. The large steam valve can effectively improve the product's anti-overflow capability, but the large steam valve has low strength and is easy to use. Deformed by heat.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art.

Accordingly, it is an object of one aspect of the present invention to provide a steam valve.

Another object of the present invention is to provide a cooking appliance comprising the above steam valve.

To achieve the above object, an embodiment of an aspect of the present invention provides a steam valve for a cooking appliance, the steam valve including: a valve seat having an air inlet; and a valve cover a valve chamber on the valve seat and defining a seal with the valve seat and a buffer chamber on a side of the valve chamber, the valve cover is provided with an air outlet, and the air inlet and the air inlet The air outlets are all connected to the valve cavity.

According to the above embodiment of the present invention, a valve cover is disposed on a valve seat, and defines a sealed valve chamber and a buffer chamber on a side of the valve chamber, wherein the valve cover is used to define the valve cavity. The air outlet is provided on a part of the valve seat, and the valve seat is provided with an air inlet on the portion defining the valve cavity, and the air inlet, the air outlet and the valve chamber are connected to each other. During the use of the cooking appliance, the steam enters the valve chamber through the air inlet. And exiting from the air outlet to realize the normal operation of the steam valve; since the valve cover and the valve seat define a buffer chamber in addition to the valve chamber, the valve cover is reduced compared with the single-chamber structure in the related art. The portion for defining the valve cavity occupies the proportion of the valve cover, reducing the proportion of the valve seat for defining the valve cavity to occupy the valve seat, reducing the volume occupied by the valve cavity in the steam valve, that is, reducing the high temperature The area of action of the steam and the bonnet and the valve seat reduces the degree of thermal deformation of the steam valve, which is equivalent to increasing the strength of the steam valve, thereby ensuring the strength of the steam valve as compared with the single-valve steam valve. Can increase the size of the steam valve so that it can be relatively The size of the valve chamber is increased to improve the anti-overflow capability of the product. Therefore, by providing the valve chamber and the buffer chamber, the product can prevent the overflow resistance and the rice cooking effect, and the strength of the steam valve can be ensured in the prevention of the large steam valve. A balance has been struck between strong spillovers and low strength.

In addition, the steam valve provided by the above embodiment of the present invention further has the following additional technical features:

Preferably, a surface of the valve cover opposite to the valve seat is provided with a valve cover reinforcing rib, and the valve cover reinforcing rib is located in the valve cavity.

The lower surface of the bonnet (the surface opposite to the valve seat) is provided with a downwardly protruding bonnet reinforcement rib, and the bonnet reinforcement rib is located in the valve cavity to enhance the strength of the portion of the bonnet defining the valve cavity, thereby improving The deformation resistance of the bonnet under the action of high temperature steam. The lower surface of the valve cover may be recessed to form a bonnet reinforcement rib, or the lower surface of the valve cover may protrude to form a bonnet reinforcement rib, or the upper surface of the valve cover may be recessed to form a bonnet reinforcement rib.

Preferably, the bonnet rib comprises a plurality of rib segments connected end to end in sequence, and an angle between two adjacent rib segments is not zero.

The angle between two adjacent ribs in the first and last ribs is not zero, that is, there is a bend between two adjacent ribs, so that the bonnet reinforcement includes at least two ribs in different directions. In the segment, the bonnet is reinforced in multiple directions to further enhance the reinforcing effect on the bonnet. The bonnet ribs may be triangular or quadrangular polygonal or C-shaped, D-shaped, etc., of course, the bonnet reinforcing ribs may also be straight.

Preferably, the steam valve further includes a grille located in the valve cavity and supported between the valve cover and the valve seat, the grille comprising a plurality of spaced ribs Adjacent to the retaining rib A steam passage is provided between the two.

The grid is supported between the bonnet and the valve seat to effectively enhance the structural strength of the steam valve and prevent the bonnet from being deformed by heat, especially for steam valves of relatively large size, which may result in bonnets as the size of the bonnet increases. The strength is reduced and it is easily deformed by heat. By adding a grid between the valve cover and the valve seat, the effect of preventing deformation of the valve cover is more obvious.

Further, the valve seat is provided with an air inlet, a plurality of the retaining ribs surround the air inlet, a steam passage is arranged between the adjacent retaining ribs, and a connecting phase is arranged on the retaining rib A grid gap adjacent to the steam passage. A steam passage is arranged between two adjacent retaining ribs, and two adjacent steam passages communicate with each other through a grid notch on the retaining rib to increase the flow distance of steam into the valve chamber and to achieve good defoaming. The effect is that the rice grains, porridge soup and the like which are mixed in the steam can be sufficiently separated from the steam and fall back into the valve cavity, thereby achieving a good anti-overflow effect.

Preferably, a plurality of the valve cover reinforcing ribs are disposed on a surface of the valve cover opposite to the valve seat, and a gap between the two adjacent valve cover reinforcing ribs defines a lower end opening and is compatible with the retaining ribs The limiting groove is disposed, and the upper end of the rib is limited to the limiting groove.

Adjacent two bonnet ribs define a limiting groove adapted to the rib for limiting the rib.

Preferably, the valve seat is provided with a valve seat reinforcing rib on a surface opposite to the valve cover, wherein the valve seat reinforcing rib is located in the valve cavity.

An upwardly projecting valve seat rib is provided on the upper surface of the valve seat (the surface opposite to the bonnet), and the valve seat is used to define the strength and deformation resistance of the portion of the valve chamber, thereby increasing the strength of the steam valve. The valve seat ribs may include at least two ribs in different directions, or may be straight.

Preferably, at least one of the two opposite surfaces of the valve seat and the valve cover is provided with a rib, wherein the rib is located in the buffer cavity.

The upper surface of the valve seat (the surface opposite to the valve cover) is provided with an upwardly protruding rib, wherein the rib is located in the buffer cavity to increase the strength of the valve seat portion defining the buffer cavity, thereby enhancing the entire valve seat The strength; and/or the lower surface of the bonnet (the surface opposite the valve seat) defines a portion of the buffer chamber that projects downwardly to form a rib to enhance the strength of the bonnet. As for the shape of the rib, it may be straight or bent. Similarly, the rib may be formed by recessing the lower surface of the valve seat, or the upper surface of the bonnet is recessed.

Preferably, the buffer chamber includes a first buffer chamber located on the left side of the valve chamber and a second buffer chamber located on the right side of the valve chamber.

Preferably, the ratio of the cross-sectional area of the buffer chamber to the cross-sectional area of the valve chamber is 1/2 to 2/1, which can prevent the cross-sectional area of the buffer chamber from being too small, that is, the valve chamber in the steam valve. If the volume is too large, the steam valve is easily deformed, and the cross-sectional area of the buffer chamber is too large, that is, the volume of the valve chamber in the steam valve is too small, so that the steam valve has poor anti-overflow effect and poor cooking effect. When the buffer chamber includes a plurality of sub-buffer chambers, the cross-sectional area of the buffer chamber refers to the sum of the cross-sectional areas of the plurality of sub-buffer chambers, for example, the buffer chamber includes the first buffer chamber and the second buffer chamber, and the cross-sectional area of the buffer chamber Refers to the sum of the cross-sectional areas of the first buffer chamber and the second buffer chamber. Of course, in practical applications, the ratio of the cross-sectional area of the buffer chamber to the cross-sectional area of the valve chamber and the number and position of the buffer chamber can be flexibly selected, but without departing from the design concept, The scope of protection of the program.

Preferably, a sealing rib is provided around the valve cavity to seal the valve cavity.

A sealing rib is provided at a joint of a portion of the valve seat defining the valve chamber and a portion of the valve cover defining the valve chamber to seal the valve chamber and improve sealing of the valve chamber. A valve cavity is formed in the sealing rib, and a buffer cavity is arranged outside the sealing rib. In the case of a good seal, the steam entering from the intake port enters the valve chamber and is discharged through the air outlet. Compared with the single-cavity structure of the steam valve, after the buffer chamber is provided, the volume of the valve chamber is relatively reduced, thereby reducing the size of the sealing rib, reducing the risk of air leakage at the sealing rib, and improving the steam valve. Sealing.

Preferably, one of the valve cover and the valve seat is provided with a mounting groove for mounting the sealing rib, and the other is provided with a limiting protrusion for pressing the sealing rib.

An annular mounting groove may be disposed on the lower surface of the valve cover, the sealing rib is placed in the mounting groove, and a limiting protrusion is disposed on the upper surface of the valve seat, and the limiting protrusion is inserted into the mounting groove and abuts on the sealing rib. To compress the sealing ribs. Of course, an annular mounting groove for mounting a sealing rib may be provided on the upper surface of the valve seat, and a limiting protrusion is disposed on the lower surface of the valve cover. It should be noted that the limit protrusion and the mounting groove can also enhance the strength of the steam valve.

Preferably, the connection between the valve cover and the valve seat in the buffer chamber is in communication with the outside.

In the case of poor sealing of the valve cavity, the steam entering the valve cavity from the air inlet enters the buffer chamber through the sealing rib, and is discharged to the outside by the buffer chamber, thereby improving the safety of the steam valve.

As for the communication mode between the buffer chamber and the outside, the steam entering the buffer chamber can be directly discharged through the joint of the valve seat defining the buffer chamber and the portion of the valve cover defining the buffer chamber, or the valve cover An air outlet that communicates with the outside is opened on a portion defining the buffer chamber.

Preferably, the steam valve further includes: a gusset for connecting the valve cover and the valve seat, wherein one of the valve cover and the valve seat and one end of the gusset are rotatable Connected to the ground, the other of the valve cover and the valve seat is engaged or inserted with the other end of the gusset.

The steam valve further includes a gusset for connecting the bonnet and the valve seat, wherein one end of the gusset is rotatably coupled to one of the bonnet and the valve seat, and the other end of the gusset is in the bonnet and the valve seat The other phase is stuck or phase plugged.

Preferably, the steam valve further comprises a decorative piece covering the valve cover, and the decorative piece is provided with an exhaust port corresponding to the air outlet, and the decorative piece may be a plastic part or a glass piece. When the decorative piece is a glass piece, the decorative piece is mounted on the valve cover through a fixing bracket. Specifically, the decorative piece is attached to the fixing bracket, and the fixing bracket is fixed on the valve cover by a fastener or is snapped onto the valve cover.

Specifically, the steam valve includes a valve body and a decorative piece, the valve body includes a valve cover and a valve seat, and the valve cover is disposed on the valve seat, the valve body defines a first steam passage, where the first steam passage is The steam passage on the grille is different. The first steam passage refers to a passage through which the steam formed by the air inlet, the air outlet and the space inside the valve chamber flows. At this time, the steam valve may be provided with a valve chamber and a buffer chamber, or Only the valve cavity is provided; the decorative sheet is a tempered glass cover, and the decorative sheet is mounted on the valve body and covers the upper surface of the valve body.

The tempered glass is applied to the decorative piece of the steam valve, that is, the decorative piece is made of tempered glass, which is a breakthrough of the overall appearance of the steam valve, which plays a decorative and beautiful role, and provides diversified innovation for the overall appearance of cooking products such as rice cookers. The choice is to meet the user's diversified requirements for appearance; and the tempered glass decorative piece covers the upper surface of the valve body, so as to solve the aesthetic fatigue caused by a single plastic cover, and effectively avoid the size of the valve body. When the valve body is deformed due to excessive temperature, the effect of the appearance of the steam valve is affected, thereby effectively ensuring the appearance of the steam valve.

In the above technical solution, preferably, the upper surface of the decorative sheet is a flat surface.

The upper surface of the decorative sheet is designed as a flat surface, which is more favorable for the processing and forming of the decorative sheet than the curved or other shaped appearance surface, and facilitates the assembly and installation of the decorative sheet and the valve body, and the thinning design of the entire steam valve. . Of course, the upper surface of the decorative sheet can also be designed as a curved surface or other shape.

According to an embodiment of the present invention, an air inlet (ie, an air inlet) of the first steam passage is disposed at a bottom of the valve body, and an air outlet (ie, an air outlet) of the first steam passage is disposed at the The upper surface of the valve body is provided with an exhaust port corresponding to the air outlet.

An exhaust port corresponding to the air outlet on the valve body is opened on the decorative piece, so that the steam entering the valve body is smoothly discharged through the exhaust port on the decorative piece.

According to an embodiment of the present invention, an air inlet of the first steam passage is disposed at a bottom of the valve body, and an air outlet of the first steam passage is disposed at a side of the valve body, the decorative sheet The upper surface is a closed surface with no openings in the middle.

The air outlet on the valve body is arranged on the side of the valve body, so that there is no need to open an exhaust port on the upper surface of the decorative piece, the processing process is reduced, the cost is reduced, and the appearance of the decorative piece is ensured; and the air outlet is provided. On the side of the valve body, steam is ejected from the side of the steam valve, effectively preventing the steam from being directly ejected upward from the upper surface of the steam valve, thereby causing the user to be burned.

In the above technical solution, preferably, the steam valve further includes: a fixing bracket, the decorative sheet is bonded to an upper surface of the fixing bracket, and the fixing bracket is mounted on an upper surface of the valve body.

The decorative piece is indirectly mounted on the valve body through the fixing bracket. Specifically, the decorative piece is fixed on the fixing bracket by bonding, so that the structure of the buckle, the screw column and the like need not be processed on the decorative piece, so that the decorative piece can be conveniently The fixing bracket is fixed on the fixing bracket, so that the fixing bracket fixed with the decorative piece is mounted on the valve body, and the decorative piece of the tempered glass material is stably mounted on the valve body, the assembly structure is simple, the assembly is convenient, and the structure of the decorative piece is simple. Easy to form.

In the above technical solution, preferably, the fixing bracket is an annular opening with an intermediate opening, and the decorative sheet is supported on an upper surface of the annular bracket.

The middle opening of the fixing bracket ensures that the decorative piece is firmly bonded on the fixing bracket, the material of the fixing bracket is reduced, the cost is saved, and the fixing bracket only plays a role of fixing and supporting the periphery of the decorative piece, ensuring The aesthetics of the decorative piece.

In the above technical solution, preferably, the fixing bracket is provided with a downwardly protruding screw column, and an upper surface of the valve body is provided with a screw column sleeve corresponding to the screw column, and the screw passes through the screw The column sleeve is tightened on the screw column.

In the above technical solution, preferably, the fixing bracket is provided with a downwardly protruding buckle, and the upper surface of the valve body is provided with a card slot corresponding to the buckle, and the buckle is stuck in the Inside the card slot.

When the fixing bracket is assembled, the fixing bracket is pressed into the upper surface of the valve body, and the buckle on the fixing bracket is stuck in the card slot on the valve body, so that the fixing bracket is pre-fixed on the valve body, and the screw on the fixing bracket is fixed at this time. The column is inserted into the screw post sleeve on the valve body, and then the screw is passed from bottom to top through the screw post sleeve and tightened On the screw column, the fixed mounting of the fixing bracket on the valve body is realized, the structure is simple, and the assembly is convenient.

In the above technical solution, preferably, the valve body is made of a PP material, and the fixing bracket is made of a material including ABS and PC.

The valve body is made of PP (polypropylene) material with good mechanical properties. It is easy to process and has good heat resistance. It can withstand the high temperature steam environment generated during cooking. The fixed bracket adopts ABS (acrylonitrile). Made of styrene-butadiene copolymer and PC (polycarbonate), the tempered glass decorative piece can be firmly bonded to the fixing bracket, and the decorative piece can be realized on the valve body by the fixing bracket. installation.

Preferably, the valve cover and/or the valve seat are plastic parts for ease of shaping, preferably the valve cover and/or the valve seat are high temperature resistant plastic parts.

An embodiment of the second aspect of the present invention provides a cooking appliance comprising: an upper cover, the upper cover is provided with an assembly position; and the steam valve of any of the above embodiments, the steam valve is located at the assembly position Inside.

Preferably, the upper cover is provided with a mounting cavity, and the steam valve is located in the mounting cavity.

The cooking appliance can be a rice cooker or an electric pressure cooker.

Preferably, the mounting position has a left and right open mounting surface, and a left side surface of the first buffer chamber is flush with a left side of the mounting surface, and a right side surface of the second buffer chamber and a right edge of the mounting surface Flush.

The assembly position has a mounting surface that is open at the left and right, so that the steam valve can not be enlarged due to the space limitation of the assembly position, thereby achieving a good anti-spill effect by increasing the size of the steam valve. The first buffer chamber is located on the left side of the valve chamber, and the left side surface of the first buffer chamber is flush with the left side of the mounting surface, that is, the left side of the first buffer chamber has no other structure of the upper cover, and the valve chamber enters the first buffer. The vapor of the chamber is directly discharged through the connection between the valve cover and the valve seat at the left side of the first buffer chamber, so as to prevent the steam from being sprayed to the front end of the steam valve and injuring the user; the second buffer chamber is located on the right side of the valve chamber, and the second buffer The right side of the cavity is flush with the right edge of the mounting surface, that is, the other side of the second buffer cavity has no other structure of the upper cover, and the vapor entering the second buffer cavity from the valve cavity passes through the right side of the second buffer cavity. The connection between the bonnet and the valve seat is directly discharged to the outside without damaging the user.

Further preferably, the mounting position has a mounting surface that is open at the left and left and has an open rear end, that is, the mounting position is an open surface instead of the enclosed slot, which effectively solves the problem that the assembly position has a cleaning dead angle, and is convenient for the assembly position. Cleaning; because there is no enclosed slot structure on the upper cover, this does not limit the size of the steam valve in space, thereby avoiding the problem that the steam valve cannot be enlarged due to the space limitation of the assembly position, thereby being able to increase The size of the steam valve, which raises the high temperature steam in the inner cavity of the steam valve The heat insulation effect improves the anti-overflow effect of the cooking utensils when cooking, and raises the upper limit of high-power heating without overflowing, thereby improving the taste of cooking. At this time, the steam discharged from the first buffer chamber may also be discharged through the connection between the valve cover and the valve seat on the rear side of the first buffer chamber, and the steam discharged from the second buffer chamber may also pass through the valve cover on the rear side of the first buffer chamber and The connection of the valve seat is discharged, and a third buffer chamber may be provided on the rear side of the valve chamber.

Additional aspects and advantages of the invention will be apparent from the description of the invention.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic structural view of a steam valve according to an embodiment of the present invention;

Figure 2 is a cross-sectional structural view taken along line A-A of Figure 1;

Figure 3 is a cross-sectional structural view taken along line B-B of Figure 1;

Figure 4 is an enlarged schematic view showing a portion C of Figure 3;

Figure 5 is a first exploded perspective view of the steam valve shown in Figure 1;

Figure 6 is a second exploded perspective view of the steam valve shown in Figure 1;

Figure 7 is a third exploded structural view of the steam valve shown in Figure 1;

Figure 8 is a schematic view showing the structure of a first view of the valve cover according to the embodiment of the present invention;

9 is a schematic structural view of a second viewing angle of a valve cover according to an embodiment of the present invention;

Figure 10 is a schematic view showing the structure of a third view of the valve cover according to the embodiment of the present invention;

Figure 11 is a schematic view showing the structure of a first viewing angle of a valve seat according to an embodiment of the present invention;

Figure 12 is a schematic view showing the structure of the second angle of view of the valve seat according to the embodiment of the present invention.

Figure 13 is a schematic view showing the structure of a third angle of view of the valve seat according to the embodiment of the present invention;

Figure 14 is a schematic structural view of a grid according to an embodiment of the present invention;

Figure 15 is a perspective view showing the structure of a steam valve according to an embodiment of the present invention;

Figure 16 is a perspective view showing the structure of a steam valve according to another embodiment of the present invention;

Figure 17 is a schematic view showing the assembly structure of a steam valve according to an embodiment of the present invention;

Figure 18 is a schematic exploded view of the steam valve shown in Figure 17;

Figure 19 is a schematic view showing the assembly structure of a steam valve according to another embodiment of the present invention;

Figure 20 is a schematic exploded view of the steam valve shown in Figure 19.

Wherein, the correspondence between the reference numerals and the component names in FIGS. 1 to 20 is:

100 steam valve, 1 valve seat, 11 limit protrusion, 12 air inlet, 2 valve cover, 21 air outlet, 22 valve cover reinforcement, 221 first reinforcement section, 222 second reinforcement section, 223 third reinforcement section , 224 fourth rib section, 225 fifth rib section, 23 limit groove, 24 rib, 25 mounting groove, 3 valve cavity, 4 buffer cavity, 41 first buffer cavity, 42 second buffer cavity, 5 grid , 51 ribs, 52 steam channels, 53 connecting ribs, 6 sealing ribs, 7 gussets, 8 decorative pieces, 81 exhaust ports, 9 fixed brackets, 91 screw posts, 92 snaps, 10 valve body, 101 first steam aisle.

detailed description

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

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention, but the invention may be practiced otherwise than as described herein. The limitations of the example.

Steam valves and cooking appliances in accordance with some embodiments of the present invention are described below with reference to the accompanying figures.

As shown in FIGS. 1 to 3, 5 to 9, and 11, a steam valve 100 for a cooking appliance including a valve seat 1 and a valve cover 2 is provided according to some embodiments of the present invention. The valve seat 1 is provided with an air inlet 12; the valve cover 2 is disposed on the valve seat 1 and defines a sealed valve chamber 3 with the valve seat 1 and a buffer chamber 4 on the side of the valve chamber 3, on the valve cover 2 An air outlet 21 is provided, and both the air inlet 12 and the air outlet 21 penetrate the valve chamber 3.

In the steam valve 100 provided by the above embodiment of the present invention, the valve cover 2 is disposed on the valve seat 1 and defines a sealed valve cavity 3 with the valve seat 1 and a buffer chamber 4 located at a side of the valve chamber 3, wherein the valve cover 2, a portion for defining the valve chamber 3 (portion of F1 in FIGS. 8 and 9) is provided with an air outlet 21, and the valve seat 1 is for defining a portion of the valve chamber 3 (as shown in part F2 of FIG. 11). The air inlet 12 is provided, and the air inlet 12, the air outlet 21 and the valve chamber 3 are penetrated. During use of the cooking appliance, steam enters the valve chamber 3 from the air inlet 12 and is discharged from the air outlet 21 to realize the steam valve 100. Normal operation; due to the exception of the valve chamber 3, the bonnet 2 The valve seat 1 also defines a buffer chamber 4, which reduces the proportion of the valve cover 2 for defining the valve chamber 3 to occupy the valve cover 2, as compared with the prior art in which the steam valve 100 is a single-chamber structure. The valve seat 1 is used to define the proportion of the valve chamber 3 occupying the valve seat 1, reducing the volume occupied by the valve chamber 3 in the steam valve 100, that is, reducing the effect of the high temperature steam on the valve cover 2 and the valve seat 1. The area reduces the degree of thermal deformation of the steam valve 100, which corresponds to an increase in the strength of the steam valve 100, so that the steam can be increased while maintaining the strength of the steam valve 100 as compared with the single-chamber steam valve 100. The size of the valve 100 can relatively increase the size of the valve chamber 3 and improve the anti-overflow capability of the product. Therefore, by providing the valve chamber 3 and the buffer chamber 4, the product can prevent the overflow resistance and the rice cooking effect, and can ensure the product. The strength of the steam valve 100 is balanced between the high spill resistance of the large steam valve 100 and the low strength.

Preferably, as shown in FIGS. 3 to 6 and 8, the valve cover 2 is provided with a bonnet reinforcement rib 22 on the surface opposite to the valve seat 1, and the bonnet reinforcement rib 22 is located in the valve chamber 3.

The lower surface of the bonnet 2 (the surface opposite to the valve seat 1) is provided with a downwardly protruding bonnet rib 22, and the bonnet rib 22 is located in the valve chamber 3 to enhance the bonnet 2 to define the valve cavity The strength of the portion of 3 increases the resistance of the valve cover 2 to deformation under the action of high temperature steam.

The lower surface of the valve cover 2 may be recessed to form the valve cover reinforcing rib 22, or the lower surface of the valve cover 2 may be convex to form the valve cover reinforcing rib 22, or the upper surface of the valve cover 2 may be recessed to form the valve cover reinforcing rib 22 .

Preferably, as shown in FIGS. 5, 6, and 8, the bonnet reinforcement rib 22 includes a plurality of rib segments that are connected end to end in sequence, and the angle between the adjacent two rib segments is not zero.

The angle between two adjacent rib segments connected in series is not zero, that is, there is a bend between two adjacent rib segments, so that the bonnet rib 22 includes at least two different directions. The rib section strengthens the plurality of directions of the bonnet 2, thereby further enhancing the reinforcing effect on the bonnet 2. The bonnet rib 22 may be a polygon such as a triangle or a quadrangle or a C-shape, a D-shape, etc., of course, the bonnet reinforcement rib 22 may also be in the form of a straight strip.

Preferably, as shown in FIG. 14, the steam valve 100 further includes a grille 5 located in the valve chamber 3 and supported between the valve cover 2 and the valve seat 1, and the grille 5 includes a plurality of spaced-apart blocks. A rib 51 surrounds the steam passage 52 between adjacent ribs 51.

The grille 5 is supported between the valve cover 2 and the valve seat 1 to effectively enhance the structural strength of the steam valve 100 and prevent the valve cover 2 from being deformed by heat, especially for the relatively large-sized steam valve 100, with the bonnet 2 The increase in size causes the strength of the valve cover 2 to be lowered and is susceptible to thermal deformation. By adding a grid 5 between the valve cover 2 and the valve seat 1, the effect of preventing the valve cover 2 from being thermally deformed is more remarkable.

Further, the valve seat 1 is provided with an air inlet 12, a plurality of retaining ribs 51 surround the air inlet 12, and a steam passage 52 is disposed between the adjacent retaining ribs 51. The retaining ribs 51 are provided with adjacent steam passages. 52 grid notch. A steam passage 52 is defined between the two adjacent retaining ribs 51. The adjacent two steam passages 52 communicate with each other through the grid notch on the retaining rib 51 to increase the flow distance of the steam into the valve chamber 3 after entering the valve chamber 3. A good defoaming effect is achieved, and the rice grains and porridge soup mixed in the steam can be sufficiently separated from the steam and fall back into the valve chamber 3, thereby achieving a good anti-overflow effect.

Preferably, as shown in FIG. 5, FIG. 6 and FIG. 8, a plurality of bonnet ribs 22 are provided on the surface of the bonnet 2 opposite to the valve seat 1, and a lower end is defined between the adjacent two bonnet ribs 22. The limiting groove 23, which is open and matched with the rib 51, is limited to the upper end of the rib 51 in the limiting groove 23.

The adjacent two bonnet ribs 22 define a limiting groove 23 adapted to the rib 51 for limiting the rib 51.

In a specific embodiment, as shown in FIGS. 5 and 14, the intake port 21 is disposed away from the center of the valve seat 1, that is, the intake port 12 is located at one side of the valve seat 1, and at this time, the plurality of retaining ribs 51 are provided. The C-types are sequentially nested, and the open ends of the C-type are connected by the connecting ribs 53. In order to improve the limiting ability of the rib 51, the bonnet rib 22 is C-shaped, so that the limiting groove 23 is C-shaped. Further, two reinforcing ribs may be disposed on the lower surface of the bonnet 2, The ribs define a groove adapted to the connecting rib 53 for limiting the connecting rib 53. As shown in FIG. 8, the C-shaped bonnet reinforcement rib 22 includes a plurality of rib segments, which are respectively a first rib section 221, a second rib section 222, a third rib section 223, and a fourth rib section 224 which are connected end to end. And the fifth rib section 225.

Preferably, the valve seat 1 is provided with a valve seat rib (not shown in the drawing) on the surface opposite to the valve cover 2, wherein the valve seat rib is located in the valve chamber 3.

An upwardly projecting valve seat rib is provided on the upper surface of the valve seat 1 (the surface opposite to the valve cover 2), and the valve seat 1 is used to define the strength and deformation resistance of the portion of the valve chamber 3, thereby increasing the steam valve. The strength of 100. The valve seat ribs may include at least two ribs in different directions, or may be straight.

Preferably, as shown in FIGS. 3 to 11 , at least one of the opposite surfaces of the valve seat 1 and the valve cover 2 is provided with a rib 24 , wherein the rib 24 is located in the buffer chamber 4 .

The upper surface of the valve seat 1 (the surface opposite to the valve cover 2) is provided with an upwardly projecting rib 24, wherein the rib 24 is located in the buffer chamber 4 to increase the strength of the valve seat 1 defining the portion of the buffer chamber 4. , thereby enhancing the strength of the entire valve seat 1; and/or, the lower surface of the valve cover 2 (the surface opposite the valve seat 1) defines a portion of the buffer chamber 4 that projects downwardly to form a rib 24 to reinforce the bonnet 2 Strength of. As for the shape of the rib 24, it may be straight or bent. Similarly, the rib 24 may be formed by recessing the lower surface of the valve seat 1, or the upper surface of the valve cover 2 may be recessed.

In a specific embodiment, a portion of the lower surface of the bonnet 2 defining the valve chamber 3 is provided with a bonnet rib 22, and a portion of the upper surface of the valve seat 1 defining the buffer chamber 4 is provided with a rib 24, a bonnet 2 The lower surface defines a portion of the buffer chamber 4 and is also provided with a rib 24 .

Preferably, as shown in FIG. 3, the buffer chamber 4 includes a first buffer chamber 41 located on the left side of the valve chamber 3 and a second buffer chamber 42 located on the right side of the valve chamber 3.

Preferably, the ratio of the cross-sectional area of the buffer chamber 4 to the cross-sectional area of the valve chamber 3 is 1/2 to 2/1, which can prevent the cross-sectional area of the buffer chamber 4 from being too small, that is, the valve chamber 3 in the steam valve 100. The volume is too large, so that the steam valve 100 is easily deformed, and the cross-sectional area of the buffer chamber 4 is prevented from being excessively large, that is, the volume of the valve chamber 3 in the steam valve 100 is too small, so that the steam valve 100 has a poor anti-overflow effect and is cooked. The effect of the meal is poor. When the buffer chamber 4 includes a plurality of sub-buffer chambers 4, the cross-sectional area of the buffer chamber 4 refers to the sum of the cross-sectional areas of the plurality of sub-buffer chambers 4, for example, the buffer chamber 4 includes the first buffer chamber 41 and the second buffer chamber 42. The cross-sectional area of the buffer chamber 4 refers to the sum of the cross-sectional areas of the first buffer chamber 41 and the second buffer chamber 42. Of course, in practical applications, the ratio of the cross-sectional area of the buffer chamber 4 to the cross-sectional area of the valve chamber 3 and the number and position of the buffer chamber 4 can be flexibly selected, but without departing from the design concept, All belong to the scope of protection of this program.

Preferably, as shown in FIG. 2, FIG. 3 and FIG. 5, a sealing rib 6 is provided around the valve chamber 3 to seal the valve chamber 3; the connection between the valve cover 2 and the valve seat 1 in the buffer chamber 4 is connected to the outside. .

The sealing seat 6 is provided at the joint of the valve seat 1 defining the portion of the valve chamber 3 and the portion of the valve cover 2 defining the valve chamber 3 to seal the valve chamber 3 and improve the sealing of the valve chamber 3. A valve chamber 3 is formed in the sealing rib 6, and a buffer chamber 4 is disposed outside the sealing rib 6. In the case where the sealing is good, the steam entering from the intake port 12 enters the valve chamber 3 and is discharged through the air outlet 21. In the case where the valve chamber 3 is poorly sealed, the steam entering the valve chamber 3 from the intake port 12 enters the buffer chamber 4 through the sealing rib 6, and is discharged to the outside by the buffer chamber 4, thereby improving the safety of the use of the steam valve 100. Compared with the single cavity structure of the steam valve 100, after the buffer chamber 4 is provided, the phase The volume of the valve cavity 3 is reduced, thereby reducing the size of the sealing rib 6, reducing the risk of air leakage at the sealing rib 6, and improving the sealing of the steam valve 100.

Further, after the steam valve 100 is installed in the upper cover, when the air leakage occurs in the valve chamber 3, the steam enters the buffer chamber 4, the steam is cooled in the buffer chamber 4 to form condensed water, and the condensed water is stored in the buffer chamber 4, thereby avoiding In the related art, when the steam valve has a single-cavity structure (the buffer chamber 4 is not provided), the steam overflowing from the single-chamber body is easily drips to the upper cover or other parts of the cooking appliance after being cooled to condensed water, thereby improving The safety of the cooking utensils ensures the cleaning of the cooking utensils.

As for the way of communication between the buffer chamber 4 and the outside, the steam entering the buffer chamber 4 can directly define the portion of the buffer chamber 4 through the valve seat 1 (such as portions L2 and R2 in FIG. 11) and the valve cover 2 defines the buffer chamber 4 The portion of the portion (such as the portions L1 and R1 in Fig. 8 and Fig. 9) is discharged, and an air outlet communicating with the outside may be formed in a portion of the bonnet 2 where the buffer chamber 4 is defined. In a specific embodiment, the left side of the valve chamber 3 is provided with a first buffer chamber 41, and the right side of the valve chamber 3 is provided with a second buffer chamber 42 through which the steam entering the first buffer chamber 41 passes through the first buffer chamber 4. The left side surface is discharged to the outside, and the steam entering the second buffer chamber 42 is discharged to the outside through the right side surface of the second buffer chamber 42.

Preferably, as shown in FIG. 2, FIG. 3, FIG. 5, FIG. 8, FIG. 10 to FIG. 13, one of the valve cover 2 and the valve seat 1 is provided with a mounting groove 25 for mounting the sealing rib 6, and the other is A limit projection 11 for pressing the sealing rib 6 is provided.

An annular mounting groove 25 may be disposed on the lower surface of the valve cover 2, and the sealing rib 6 is placed in the mounting groove 25. The upper surface of the valve seat 1 is provided with a limiting protrusion 11 into which the limiting protrusion 11 is inserted. And abut on the sealing rib 6 to compress the sealing rib 6. Of course, it is also possible to provide an annular mounting groove 25 for mounting the sealing rib 6 on the upper surface of the valve seat 1, and a limiting projection 11 is provided on the lower surface of the valve cover 2. It should be noted that the limiting protrusion 11 and the mounting groove 25 can also enhance the strength of the steam valve 100.

Preferably, as shown in FIG. 1 , FIG. 2 and FIG. 5 , the steam valve 100 further includes a gusset 7 for connecting the bonnet 2 and the valve seat 1 , wherein one of the bonnet 2 and the valve seat 1 and the buckle One end of the plate 7 is rotatably connected, and the other of the valve cover 2 and the valve seat 1 is engaged or inserted with the other end of the gusset 7.

The steam valve 100 further includes a gusset 7 for connecting the bonnet 2 and the valve seat 1, wherein one end of the gusset 7 is rotatably coupled to one of the bonnet 2 and the valve seat 1, and the other end of the gusset 7 It is engaged or inserted with the other of the valve cover 2 and the valve seat 1. In a specific embodiment, one end of the gusset 7 is rotatably connected to the valve cover 2, and the other end of the gusset 7 is engaged with the valve seat 1, and the valve seat 1 is away from the gusset 7 One end portion is engaged with the valve cover 2, is inserted or connected by another buckle plate 7.

Preferably, as shown in FIG. 5, the steam valve 100 further includes a decorative piece 8 disposed on the valve cover 2, and the decorative piece 8 is provided with an exhaust port 81 corresponding to the air outlet 21, and the decorative piece 8 may be a plastic piece or Glass piece. When the decorative sheet 8 is a glass piece, the decorative piece 8 is mounted on the valve cover by the fixing bracket 9. Specifically, the decorative piece 8 is attached to the fixing bracket 9, and the fixing bracket 9 is fixed on the valve cover 2 by a fastener, or The card is attached to the bonnet 2.

As shown in FIGS. 15-20, a steam valve 100, including a valve body 10 and a decorative sheet 8, is provided in accordance with some embodiments of the present invention. Specifically, as shown in FIG. 17 and FIG. 18, the valve body 10 includes a valve cover 2 and a valve seat 1. The valve cover 2 is disposed on the valve seat 1 and is sealingly connected with the valve seat 1 to define a first steam passage 101. The intake port 12 of the first steam passage 101 is opened on the valve seat 1, and the air outlet 21 of the first steam passage 101 is opened on the valve cover 2. Here, the first steam passage 101 is different from the steam passage 52 on the grille 5, and the first steam passage 101 refers to a passage through which the steam formed by the intake port 12, the air outlet 21, and the space inside the valve chamber 3 flows. At this time, the steam valve 100 may be provided with the valve chamber 3 and the buffer chamber 4, or only the valve chamber 3 may be provided.

Specifically, the decorative sheet 8 is a tempered glass cover, and the decorative sheet 8 is mounted on the valve body 10 and covers the upper surface of the valve body 10.

The decorative sheet 8 is made of tempered glass to meet the user's demand for diversified appearance; and the tempered glass decorative sheet 8 covers the upper surface of the valve body 10, thereby solving the aesthetic fatigue caused by a single plastic cover. Moreover, the valve body 10 is deformed due to excessive temperature when the valve body 10 is large in size, thereby affecting the appearance of the steam valve 100, thereby effectively ensuring the appearance of the steam valve 100.

In the above embodiment, preferably, as shown in Figs. 15 and 16, the upper surface of the decorative sheet 8 is a flat surface.

The upper surface of the decorative sheet 8 is designed to be flat, which is more advantageous for the processing and molding of the decorative sheet 8 than the curved or other shaped appearance surface, and facilitates the assembly and installation of the decorative sheet 8 and the valve body 10, and the entire steam valve. 100 thin design. Of course, the upper surface of the decorative sheet 8 can also be designed as a curved surface or other shape.

In one embodiment of the present invention, as shown in FIGS. 15, 17, and 19, the intake port 12 of the first steam passage 101 is provided at the bottom of the valve body 10, and the air outlet 21 of the first steam passage 101 is provided at On the upper surface of the valve body 10, the decorative sheet 8 is provided with an exhaust port 81 corresponding to the air outlet 21.

An exhaust port 81 corresponding to the air outlet 21 of the valve body 10 is opened in the decorative sheet 8, so that the steam entering the valve body 10 can be smoothly discharged through the exhaust port 81 on the decorative sheet 8.

In another embodiment of the present invention, as shown in FIG. 16, the intake port 12 of the first steam passage 101 is provided at the bottom of the valve body 10, and the air outlet 21 of the first steam passage 101 is provided at the side of the valve body 10. The upper surface of the decorative sheet 8 is a closed surface with no opening in the middle.

The air outlet 21 on the valve body 10 is disposed on the side of the valve body 10, so that it is not necessary to open the air outlet 81 on the upper surface of the decorative sheet 8, which reduces the processing procedure, reduces the cost, and ensures the appearance integrity of the decorative sheet 8. And the air outlet 21 is provided on the side of the valve body 10, and the steam is sprayed from the side of the steam valve 100, effectively preventing the steam from being directly ejected upward from the upper surface of the steam valve 100, thereby causing the user to be burned.

In one embodiment of the present invention, as shown in FIGS. 19 and 20, the steam valve 100 further includes a fixing bracket 9 to which the decorative sheet 8 is bonded, and the fixing bracket 9 is mounted on the valve body 10. Upper surface.

The decorative piece 8 is indirectly mounted on the valve body 10 through the fixing bracket 9 . Specifically, the decorative piece 8 is fixed on the fixing bracket 9 by means of bonding, so that the structure of the buckle, the screw column and the like need not be processed on the decorative piece 8 . The decorative piece 8 can be conveniently fixed on the fixing bracket 9 to fix the fixing bracket 9 to which the decorative piece 8 is fixed to the valve body 10, thereby realizing the stable installation of the tempered glass decorative piece 8 on the valve body 10. The assembly structure is simple, the assembly is convenient, and the decorative sheet 8 has a simple structure and is convenient to form. Of course, the decorative sheet 8 can also be attached to the valve body 10 by fasteners such as screws.

In the above embodiment, preferably, as shown in Figs. 19 and 20, the fixing bracket 9 is an annular opening having an intermediate opening, and the decorative sheet 8 is supported on the upper surface of the annular bracket.

The intermediate opening of the fixing bracket 9 reduces the material of the fixing bracket 9 while ensuring the firm bonding of the decorative sheet 8 on the fixing bracket 9, saving the cost, and making the fixing bracket 9 only serve on the periphery of the decorative sheet 8. The fixing and supporting function ensure the aesthetic appearance of the decorative sheet 8.

In an embodiment of the present invention, as shown in FIG. 20, the fixing bracket 9 is provided with a screw column 91 protruding downward, and the upper surface of the valve body 10 is provided with a screw column sleeve corresponding to the screw column 91 (in the figure) Not shown), the screw passes through the screw post sleeve and is tightened onto the screw post 91.

Further, as shown in FIG. 20, the fixing bracket 9 is provided with a buckle 92 protruding downward. The upper surface of the valve body 10 is provided with a card slot (not shown) corresponding to the buckle 92, and the buckle 92 is provided. It is stuck in the card slot.

When the fixing bracket 9 is assembled, the fixing bracket 9 is pressed into the upper surface of the valve body 10, and the fixing bracket 9 is fixed. The buckle 92 is stuck in the slot on the valve body 10 to realize the pre-fixing of the fixing bracket 9 on the valve body 10. At this time, the screw post 91 on the fixing bracket 9 is inserted into the screw column sleeve on the valve body 10. Then, the screw is passed through the screw column sleeve from the bottom to the screw column 91, and the fixing bracket 9 is stably mounted on the valve body 10, and the structure is simple and the assembly is convenient.

In the above embodiment, preferably, the valve body 10 is made of a PP material, and the fixing bracket 9 is made of a material including ABS and PC.

The valve body 10 is made of PP material with good mechanical properties, is easy to process and has good heat resistance, and can withstand the high temperature steam environment generated during the cooking process for a long time; the fixing bracket 9 is made of materials including ABS and PC. In this way, the decorative sheet 8 made of tempered glass can be firmly bonded to the fixing bracket 9, and the mounting of the decorative sheet 8 on the valve body 10 is realized by the fixing bracket 9.

An embodiment of the second aspect of the invention provides a cooking appliance comprising an upper cover and the steam valve 100 of any of the above embodiments. The upper cover is provided with an assembly position; the steam valve 100 is located in the assembly position.

Preferably, the upper cover is provided with a mounting cavity, and the steam valve 100 is located within the mounting cavity.

The cooking appliance may be a rice cooker or an electric pressure cooker, an electric steamer, etc., of course, the cooking appliance may be other cooking utensils that use the steam valve 100 to exhaust steam, in addition to the above-mentioned rice cooker or electric steamer, electric pressure cooker, as long as it is not It is within the scope of the present invention to depart from the design concept of the present invention.

Preferably, the mounting position has a mounting surface that is open left and right, and the left side surface of the first buffer chamber 41 is flush with the left side of the mounting surface, and the right side surface of the second buffer chamber 42 is flush with the right side edge of the mounting surface.

The assembly position has a mounting surface that is open left and right, and the steam valve 100 is prevented from being able to be enlarged due to the space limitation of the assembly position, thereby achieving a good anti-spill effect by increasing the size of the steam valve 100. The first buffer chamber 41 is located on the left side of the valve chamber 3, and the left side surface of the first buffer chamber 41 is flush with the left side of the mounting surface, that is, the left side of the first buffer chamber 41 has no other structure of the upper cover, and the valve chamber is 3 The steam entering the first buffer chamber 41 is directly discharged through the connection between the valve cover 2 and the valve seat 1 at the left side surface of the first buffer chamber 41, preventing the steam from being sprayed to the front end of the steam valve and injuring the user; the second buffer chamber 42 Located on the right side of the valve chamber 3, the right side surface of the second buffer chamber 42 is flush with the right side of the mounting surface, that is, the other side of the second buffer chamber 42 has no other structure of the upper cover, and the valve chamber 3 enters the second buffer. The steam of the chamber 4 is directly discharged to the outside through the joint of the valve cover 2 and the valve seat 1 at the right side of the second buffer chamber 4, so as not to injure the user.

Further preferably, the mounting position has a mounting surface that is open left and right and has an open rear end, that is, the mounting position is an open surface instead of the enclosed slot, which effectively solves the problem that the assembly position has a cleaning dead angle. It is convenient to clean the assembly position; since there is no surrounding slot structure on the upper cover, the size of the steam valve 100 is not limited in space, thereby avoiding the steam valve 100 being unable to be enlarged due to the space limitation of the assembly position. The problem is that, by increasing the size of the steam valve 100, the heat insulation effect of the high temperature steam in the steam valve 100 on the inner pot can be improved, and the anti-spill effect of cooking utensils during cooking can be improved, and the large-scale lifting can be improved without overflowing. The upper limit of power heating improves the taste of cooking. At this time, the steam discharged from the first buffer chamber may also be discharged through the connection between the valve cover and the valve seat on the rear side of the first buffer chamber, and the steam discharged from the second buffer chamber may also pass through the valve cover on the rear side of the first buffer chamber and The connection of the valve seat is discharged, and a third buffer chamber can also be provided on the rear side of the valve chamber 3.

In summary, in the steam valve 100 provided by the embodiment of the present invention, in addition to the valve chamber 3, the valve cover 2 and the valve seat 1 further define a buffer chamber 4, thereby reducing the portion of the valve cover 2 that defines the valve chamber 3. The proportion of the valve cover 2 is reduced, that is, the effective area of the high temperature steam and the valve cover 2 is reduced, the degree of thermal deformation of the steam valve 100 is reduced, and the steam valve 100 can be increased under the premise of ensuring the strength of the steam valve 100. The size is such that the size of the valve chamber 3 can be relatively increased, and the rice cooking effect can be improved. Therefore, by providing the valve chamber 3 and the buffer chamber 4, both the rice cooking effect and the strength of the steam valve 100 can be ensured, and the large steam valve 100 is provided. A balance is achieved between good cooking and low strength.

In the description of the present invention, the term "plurality" means two or more unless specifically stated or defined otherwise; unless otherwise specified or stated, the terms "connected", "fixed", etc. It is understood that, for example, the "connection" may be a fixed connection, a detachable connection, or an integral connection, or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the description of the present specification, it is to be understood that the orientation or positional relationship of the terms "upper", "lower", "front", "back", "left", "right", etc. is based on the orientation shown in the drawings. Or, the positional relationship is merely for the convenience of the description of the present invention and the simplification of the description, and is not intended to indicate or imply that the device or unit referred to has a specific orientation, is constructed and operated in a specific orientation, and thus is not to be construed as limiting the invention.

In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in the present invention. At least one embodiment or example. In the present specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims (17)

A steam valve for a cooking appliance, comprising: a valve seat having an air inlet; and a valve cover, disposed on the valve seat, and defining a sealed valve cavity with the valve seat and a buffer cavity on a side of the valve cavity, the valve cover is provided with an air outlet, and the inlet Both the gas port and the gas outlet are connected to the valve cavity. The steam valve according to claim 1, wherein A valve cover reinforcing rib is disposed on a surface of the valve cover opposite to the valve seat, and the valve cover reinforcing rib is located in the valve cavity. The steam valve according to claim 2, wherein The bonnet rib includes a plurality of rib segments connected end to end in sequence, and an angle between two adjacent rib segments is not zero. The steam valve of claim 3, further comprising: a grille located in the valve cavity and supported between the valve cover and the valve seat, the grille comprising a plurality of spaced ribs adjacent to the ribs A steam passage is enclosed. A steam valve according to claim 4, wherein a plurality of the valve cover reinforcing ribs are disposed on a surface of the valve cover opposite to the valve seat, and a lower end opening is defined between two adjacent valve cover reinforcing ribs and matched with the retaining ribs a limiting groove, wherein an upper end portion of the rib is located in the limiting groove. The steam valve according to claim 1, wherein A valve seat reinforcing rib is disposed on a surface of the valve seat opposite to the valve cover, and the valve seat reinforcing rib is located in the valve cavity. The steam valve according to claim 1, wherein At least one of the two opposite surfaces of the valve seat and the valve cover is provided with a rib, and the rib is located in the buffer cavity. A steam valve according to any one of claims 1 to 7, wherein The buffer chamber includes a first buffer chamber on a left side of the valve chamber and a second buffer chamber on a right side of the valve chamber. A steam valve according to any one of claims 1 to 7, wherein The ratio of the cross-sectional area of the buffer chamber to the cross-sectional area of the valve chamber is 1/2 to 2/1. A steam valve according to any one of claims 1 to 7, wherein A sealing rib is disposed around the valve cavity to seal the valve cavity. A steam valve according to claim 10, wherein One of the valve cover and the valve seat is provided with a mounting groove for mounting the sealing rib, and the other is provided with a limiting protrusion for pressing the sealing rib. A steam valve according to any one of claims 1 to 7, wherein The connection between the valve cover and the valve seat in the buffer chamber is in communication with the outside. The steam valve according to any one of claims 1 to 7, further comprising: a gusset for connecting the valve cover and the valve seat, wherein one of the valve cover and the valve seat is rotatably coupled to one end of the gusset, the bonnet and the The other of the valve seats is engaged or inserted with the other end of the gusset. A steam valve according to any one of claims 1 to 13, wherein The bonnet cover is provided with a decorative piece, and the decorative piece is a glass piece. A steam valve according to claim 14 wherein: The decorative piece is mounted on the valve cover by a fixing bracket, wherein the decorative piece is attached to the fixing bracket, and the fixing bracket is fixed on the valve cover by a fastener, or is stuck in the On the bonnet. A cooking appliance comprising: An upper cover, the upper cover is provided with an assembly position; and A steam valve according to any one of claims 1 to 15, the steam valve being located within the assembly position. A cooking appliance according to claim 16 wherein: The assembly position has a left and right open mounting surface, and a left side surface of the first buffer chamber is flush with a left edge of the mounting surface, and a right side surface of the second buffer chamber is flush with a right edge of the mounting surface.

Images