CN220124500U

CN220124500U - Cooking utensil

Info

Publication number: CN220124500U
Application number: CN202320824312.9U
Authority: CN
Inventors: 李洪涛; 吕华; 张磊
Original assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Current assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Priority date: 2022-12-29
Filing date: 2023-03-03
Publication date: 2023-12-05
Anticipated expiration: 2033-03-03
Also published as: CN219982699U

Abstract

The utility model discloses a cooking utensil, wherein a steam valve assembly comprises a valve cover, a valve seat and a choked flow condensing piece; the valve seat is connected with the valve cover, a steam cavity is formed between the valve seat and the valve cover, the steam cavity is provided with a steam inlet and a steam outlet, the steam inlet is arranged on the valve seat and is communicated with a cooking space of the cooking utensil, and the steam outlet is arranged on the valve cover and is communicated with the external atmosphere; the choke condensing piece is arranged in the steam cavity and divides the steam cavity into a plurality of communicated steam choke condensing cavities, each steam choke condensing cavity comprises a first steam choke condensing cavity communicated with the steam inlet and a tail steam choke condensing cavity communicated with the steam outlet, and the tail steam choke condensing cavity is formed between the choke condensing piece and the valve cover in a surrounding manner; the first steam choked flow condensing cavity is internally provided with a water sealing structure formed by choked flow condensing of steam into liquid; and the projection of the end vapor block flow condensing chamber onto the transverse section of the vapor valve assembly covers a central region of the transverse section of the vapor valve assembly.

Description

Cooking utensil

The present application is a divisional application, the application number of the original application is 202320439342.8, the application date is 2023, 03 and 03, and the utility model is named as a steam valve assembly and a cooking utensil.

Technical Field

The utility model relates to the technical field of household appliances, in particular to a cooking appliance.

Background

There are two main ways of achieving no visible vapor venting for known cooking appliances such as rice cookers and electric pressure cookers. The first is to set a water tank in the cooking appliance, and discharge the steam in the cooking space into the water tank storing cold water in advance through a steam pipeline, so that the steam is in direct contact with the cold water to be liquefied, and no visible steam is discharged. However, the user is required to pour cold water into the water tank in advance before the start of cooking, and the user is required to detach the water tank to drain the water in the water tank after the end of cooking, so that the operation is troublesome, and the use experience of the user is poor. In addition, some substances in the food materials are conveyed into the water tank through the steam channel, so that bacteria are easy to breed in the water tank, even stink is generated, and overflow risks exist when the water tank is excessively accumulated. The second is based on the micropressure cooking utensil platform, so that the cooking space is isolated from the outside air, the temperature of rice water in the inner pot exceeds 100 ℃ and is not boiled under the action of high pressure through firepower control and temperature control induction, and therefore the food materials are cooked, and no visible steam is discharged. However, because the pressure in the cooking space is large, the strength of relevant parts of the cooking appliance needs to meet the pressure level, and high-pressure protection measures need to be taken, so that the cooking appliance has a complex structure and high cost. In addition, a pressure relief device is required, and after cooking is finished, a part of visible steam can be discharged in the pressure relief process.

Accordingly, there is a need for a cooking appliance to at least partially solve the above problems.

Disclosure of Invention

In the summary, a series of concepts in simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above problems, a first aspect of the present utility model provides a steam valve assembly for a cooking appliance, the steam valve assembly comprising:

a valve cover;

the valve seat is connected with the valve cover, a steam cavity is formed between the valve seat and the valve cover, the steam cavity is provided with a steam inlet and a steam outlet, the steam inlet is arranged on the valve seat and is communicated with the cooking space of the cooking appliance, and the steam outlet is arranged on the valve cover and is communicated with the external atmosphere; and

a choke condenser disposed in the vapor chamber and dividing the vapor chamber into a plurality of communicating vapor choke condensers, the vapor choke condensers comprising a first vapor choke condenser in communication with the vapor inlet and a terminal vapor choke condenser in communication with the vapor outlet, the choke condenser and the valve cover surrounding therebetween to form the terminal vapor choke condenser,

The first steam choked flow condensing cavity is internally provided with a water sealing structure formed by choked flow condensing of steam into liquid; and is also provided with

The projection of the end vapor block flow condensing chamber onto the transverse section of the vapor valve assembly covers a central region of the transverse section of the vapor valve assembly.

According to the steam valve assembly, the water sealing structure formed by the fact that steam is blocked and condensed into liquid is arranged in the first steam blocking condensing cavity, so that superheated saturated steam entering the first steam blocking condensing cavity from the steam inlet can flow out after completely immersing supercooled condensate, and superheated saturated steam entering the first steam blocking condensing cavity from the cooking space fully exchanges heat with condensate to be cooled to below 100 ℃ when immersing condensate, so that a large amount of condensate is liquefied and fused into the condensate, steam discharge can be reduced, and no visible steam discharge in the cooking process can be conveniently realized; in addition, the projection of the end steam choked flow condensing cavity on the transverse section of the steam valve component covers the rib in the central area of the transverse section of the steam valve component, and as the end steam condensing cavity is communicated with the outside atmosphere through the steam outlet, in the cooking process, the dry air and the wet air in the end steam choked flow condensing cavity can exchange heat with the outside atmosphere so as to cool the steam outlet on the end steam choked flow condensing cavity and the valve cover, thereby cooling the steam choked flow condensing cavity around the end steam choked flow condensing cavity, and further realizing the emission of invisible steam in the cooking process.

Optionally, the steam outlet is arranged at one side of the valve cover; and/or

The projections of the steam outlet and the steam inlet on the transverse section of the steam valve assembly are not overlapped.

According to the scheme, the air outlet is arranged at the end part of the valve cover, so that a user is prevented from touching the steam outlet; the projections of the steam outlet and the steam inlet on the transverse section of the steam valve assembly are not overlapped so as to prolong the flow path of steam in the steam choked flow condensing cavity.

Optionally, the valve cover is provided with at least one terminal valve cover rib, the choke condensate is correspondingly provided with at least one condensate upper rib, and the terminal valve cover rib and the condensate upper rib are both arranged in the terminal steam choke condensing cavity and extend towards each other to divide the terminal steam choke condensing cavity into at least one terminal steam channel.

According to this scheme, keep off the muscle through setting up terminal valve gap and keep off the muscle on muscle and the condensate to can prolong the flow path of steam in terminal steam choked flow condensation chamber, increase the convection heat transfer area of steam, and increase the circulation resistance of steam, with increase convection heat transfer time, increase heat exchange quantity, in order to further realize the emission of no visible steam of culinary art in-process.

Optionally, the steam flow blocking condensing cavity further comprises a second steam flow blocking condensing cavity, a first steam hole and a second steam hole, the first steam hole communicates the second steam flow blocking condensing cavity with the first steam flow blocking condensing cavity, the second steam hole communicates the second steam flow blocking condensing cavity with the tail steam flow blocking condensing cavity,

wherein the projections of the second steam hole and the steam outlet on the transverse section of the steam valve assembly do not overlap, and the projections of the second steam hole and the first steam hole on the transverse section of the steam valve assembly do not overlap.

According to this scheme to can prolong the flow path of steam, increase convection heat transfer time, increase heat exchange volume, in order to further realize the emission of no visible steam in the culinary art process.

Optionally, the second steam hole and the steam outlet are oppositely arranged at two ends of the tail steam choked flow condensing cavity.

Optionally, the valve seat is provided with at least one condensed water collecting groove, the condensed water collecting groove is arranged in the first steam choked flow condensing cavity and is arranged around the circumference of the steam inlet, the choked flow condensing part is correspondingly provided with at least one condensing part lower baffle rib, the condensing part lower baffle rib is arranged in the first steam choked flow condensing cavity, the free end of the condensing part lower baffle rib extends into the space enclosed by the condensed water collecting groove and enters the condensed water collecting groove, and the steam is choked and condensed into liquid by the condensing part lower baffle rib and is accumulated in the condensed water collecting groove, so that the liquid floods the free end of the condensing part lower baffle rib to form the water sealing structure.

According to the scheme, through setting up condensate water collecting vat and condensate lower fender muscle, steam is by condensate lower fender muscle choked flow condensation and is accumulated in the condensate water collecting vat for the liquid is submerged the free end of condensate lower fender muscle and is formed the inside relative isolated water seal structure with the external world of cooking space along with the liquid is more the ponding, thereby obstructs the inside steam flow direction external world of cooking space, so that realize the emission of no visible steam in the cooking process, and the simple structure of disk seat and choked flow condensate.

Optionally, the at least one condensation piece lower baffle rib divides the first vapor choked flow condensation cavity into at least one first vapor channel with communicated bottoms; and/or

The free end of the condensate piece lower baffle rib is provided with a plurality of first gaps, and the maximum distance E1 between the first gaps and the bottom surface of the condensate water collecting tank meets the following conditions: e1 is more than or equal to 1mm and less than or equal to 5mm.

According to this scheme, when E1 satisfies above-mentioned scope, not only make the steam cross-sectional area that circulates between the free end of condensate piece lower fender muscle and comdenstion water collecting vat comparatively suitable, make cooking utensil be difficult for the overflow pot simultaneously. Optionally, the valve seat is provided with at least one first valve seat rib, the first valve seat rib sets up in the condensation chamber of the choked flow of first steam and around the circumference setting of steam inlet, adjacent two all be provided with between the first valve seat rib one the comdenstion water collecting vat.

Optionally, the valve seat is provided with at least one first valve seat rib, the first valve seat rib sets up in the condensation chamber of the choked flow of first steam and around the circumference setting of steam inlet, adjacent two all be provided with between the first valve seat rib one the comdenstion water collecting vat.

According to the scheme, by arranging the first valve seat blocking rib, condensed water can be accumulated on the valve seat, so that a water sealing structure is realized.

Optionally, the choke-flow condenser is provided with at least one condenser side rib, the condenser side rib is arranged in the second steam choke-flow condensing cavity, the upper end of the condenser side rib is abutted to the valve cover, and a gap exists between the lower end of the condenser side rib and the valve seat so as to divide the second steam choke-flow condensing cavity into at least one second steam channel with at least the bottom communicated.

According to this scheme, through setting up condensate side fender muscle to can prolong the flow path of steam in the choked flow condensation chamber of second steam, increase the convection heat transfer area of steam, and increase the circulation resistance of steam, with increase convection heat transfer time, increase heat exchange volume, in order to further realize the emission of no visible steam in the culinary art process.

Optionally, the valve cover is provided with at least one first valve cover rib, the first valve cover rib is arranged in the second steam choked flow condensation cavity and is close to or contacts with the condensation piece side rib, and a distance E4 between the lower surface of the first valve cover rib and the upper surface of the condensation piece side rib satisfies: e4 is 1mm or less or 10mm or less, and/or

The valve seat is provided with at least one second valve seat rib, the second valve seat rib sets up in the second steam choked flow condensation chamber and be close to condensate side rib, the upper surface of second valve seat rib is higher than condensate side rib's lower surface, and the distance E5 between condensate side rib's the lower surface and the lower extreme of second valve seat rib satisfies: e5 is more than or equal to 1mm and less than or equal to 3mm.

According to the scheme, the first valve cover blocking rib is arranged, so that steam can be prevented from channeling from the top of the second steam channel to the second steam channel adjacent to the second steam channel; and E5, when the range is met, the liquefied condensed water can freely flow between the adjacent second steam channels, and water accumulation is avoided.

Optionally, the valve seat is further provided with a drain hole, the drain hole is arranged at one end of the valve seat and is positioned at the lowest position of the valve seat, and the drain hole is communicated with the second steam choked flow condensing cavity.

According to the scheme, the drain hole is formed in the lowest position of the steam valve assembly, so that liquid in the steam choked flow condensing cavity can be automatically discharged through the drain hole.

According to a second aspect of the present utility model, there is disclosed a cooking appliance comprising:

a pot body;

the cover body is arranged on the cooker body in an openable and closable manner, and when the cover body is covered on the cooker body, a cooking space is formed between the cover body and the cooker body; and

the steam valve assembly according to any one of the first aspect, the steam valve assembly being detachably connected to the cover,

wherein, when the steam valve assembly is connected to the cover, the steam inlet communicates with the cooking space.

According to a third aspect of the present utility model, there is disclosed a cooking appliance comprising:

a pot body;

a steam valve assembly detachably connected to the cover and comprising:

a valve cover;

the valve seat is connected with the valve cover, a steam cavity is formed between the valve seat and the valve cover, the steam cavity is provided with a steam inlet and a steam outlet, the steam inlet is arranged on the valve seat and is communicated with the cooking space, and the steam outlet is arranged on the valve cover and is communicated with the external atmosphere;

A steam channel formed in the steam cavity and communicating the steam inlet and the steam outlet, wherein at least one section of the steam channel is provided with a water sealing structure formed by the steam which is choked flow and condensed into liquid;

wherein the valve seat is provided with a drain hole which is provided at a lowest position of the steam valve assembly and communicates with the steam passage.

According to the scheme, the water sealing structure formed by the fact that steam is blocked and condensed into liquid is arranged on at least one section of the steam channel in the steam cavity, so that superheated saturated steam entering the steam channel from the steam inlet can flow out after completely immersing supercooled condensate, and the superheated saturated steam entering the steam channel from the cooking space fully exchanges heat with the condensate to be cooled to below 100 ℃ when immersing the condensate, so that a large amount of condensate is liquefied and fused into the condensate, steam discharge can be reduced, and no visible steam discharge in the cooking process can be conveniently realized; by providing the drain hole on the valve seat, the drain hole is provided at the lowest position of the entire steam valve assembly, so that condensed water in the steam passage is discharged through the drain hole.

Optionally, the pot body is provided with a water storage groove, the water storage groove faces the cover body, and when the cover body is covered on the pot body, the position of the water storage groove corresponds to the position of the water drain hole.

According to the scheme, the water storage groove facing the cover body is arranged on the cooker body, and the position of the water storage groove corresponds to the position of the drain hole, so that condensed water discharged from the drain hole enters the water storage groove.

Optionally, the valve seat further includes a drain portion, the drain hole is disposed in the drain portion, the steam valve further includes a drain seal ring, the drain seal ring surrounds a circumference of the drain hole and is disposed in the drain portion, when the cover is covered on the pot body, the drain seal ring abuts against an inner surface of the water storage tank to seal the drain hole, when the cover is opened, the drain seal ring is separated from contact with the inner surface of the water storage tank to open the drain hole, so that liquid in the steam channel can be discharged from the drain hole and enter the water storage tank.

According to this scheme, through setting up the drainage sealing washer, when the lid closes on the a kind of deep pot body, the wash port is by the internal surface shutoff of catch basin, and comdenstion water and steam in the steam valve subassembly can not be discharged through the wash port, and when the lid was opened, the drainage sealing washer breaks away from the contact with the internal surface of catch basin for comdenstion water in the steam valve subassembly can be discharged through the wash port and fall in the catch basin under the effect of gravity.

Optionally, the cooker body further includes a mounting groove facing the cover body and a water storage box detachably arranged in the mounting groove, and the water storage groove is arranged in the water storage box.

According to this scheme, through setting up detachable retaining box, after the culinary art, the user can take out the comdenstion water in the retaining box with the retaining box from the mounting groove and pour to conveniently wash the retaining box.

Optionally, the cooking appliance further includes a pivot shaft, the cover is pivotably connected to the pot via the pivot shaft, and the drain hole is provided at an end of the valve seat near the pivot shaft.

According to this solution, the drain hole is provided at the end of the valve seat close to the pivot axis, such that when the cover is open, the drain hole is still located at the lowest position of the entire steam valve assembly.

Optionally, the steam valve assembly further comprises a choke condenser disposed in the steam cavity and dividing the steam cavity into a plurality of communicated steam choke condensers, the steam choke condensers comprising a first steam choke condenser in communication with the steam inlet, the choke condenser and the valve seat surrounding the first steam choke condenser, and the water-tight structure is located in the first steam choke condenser.

According to the scheme, through setting up the choked flow condensation piece, the choked flow condensation piece separates into the steam choked flow condensation chamber of a plurality of intercommunications with the steam chamber to can prolong the flow path of overheated saturated steam in the cooking space, increase the convection heat transfer area of steam, and increase the circulation resistance of steam, in order to increase convection heat transfer time, increase heat exchange quantity, in order to further realize the emission of no visible steam in the cooking process. The first steam flow-blocking condensing cavity firstly receives the superheated saturated steam from the cooking space, and the water sealing structure is positioned in the first steam flow-blocking condensing cavity, so that more superheated saturated steam in the cooking space is condensed into condensed water in the first steam flow-blocking condensing cavity, and the emission of no visible steam in the cooking process is realized.

According to this scheme, through setting up condensate water collecting vat and condensate lower fender muscle, steam is by condensate lower fender muscle choked flow condensation and is accumulated in the condensate water collecting vat for the liquid is submerged the free end of condensate lower fender muscle and is formed the inside relative isolated water seal structure with the external world of culinary art along with the liquid is more the more, thereby obstructs inside steam flow direction external world, so that realize the emission of no visible steam in the culinary art process, and the simple structure of disk seat and choked flow condensate.

Optionally, the condensation piece lower baffle rib divides the first vapor flow blocking condensation cavity into at least two first vapor channels with communicated bottoms, and the vapor channels comprise the first vapor channels and/or

The free end of the condensate piece lower baffle rib is provided with a plurality of gaps, and the maximum distance E1 between the gaps and the bottom surface of the condensate water collecting tank meets the following conditions: e1 is more than or equal to 1mm and less than or equal to 5mm.

According to the scheme, by arranging the first valve seat blocking rib, condensed water can be accumulated on the valve seat so as to realize watertight.

Optionally, the first valve seat blocking rib comprises an inner ring valve seat blocking rib forming the steam inlet and an intermediate valve seat blocking rib arranged outside the inner ring valve seat blocking rib,

wherein, the height H1 of inner circle disk seat fender muscle satisfies: h1 is 5mm or less or 30mm or less, and/or

The height H2 of the middle valve seat blocking rib meets the following conditions: H2-E1 is less than or equal to 1mm and less than or equal to 5mm.

According to the scheme, when H1 meets the range, the height of the inner ring valve seat blocking rib is higher than the liquid level of condensed water after cooking is finished, so that the phenomenon that the condensed water overflows through a steam inlet and flows back into an inner pot to cause white rice dripping is avoided; when H2 meets the range, the water storage capacity of the valve seat meets the requirement, and no overflow is generated.

Optionally, the condensation piece lower baffle rib comprises a first condensation piece lower baffle rib, the first condensation piece lower baffle rib is arranged between the inner ring valve seat baffle rib and the middle valve seat baffle rib,

Wherein, the distance E2 between the first condensate piece lower retaining rib and the inner ring valve seat retaining rib satisfies: e2 is 3mm or less or 5mm or less, and/or

The distance E3 between the first condensation piece lower blocking rib and the middle valve seat blocking rib meets the following conditions: e3 is more than or equal to 2mm and less than or equal to 5mm.

According to this scheme, when E2 and E3 satisfy above-mentioned scope, not only can satisfy the water storage of disk seat, make first condensation piece down keep off the interval between muscle and the middle disk seat fender muscle of inner circle disk seat fender muscle comparatively suitable simultaneously to washing choked flow condensation piece and disk seat.

Optionally, the first valve seat keeps off the muscle and includes outer lane valve seat keeps off the muscle, outer lane valve seat keeps off the muscle and sets up the outside of middle valve seat keeps off the muscle, choked flow condensation piece is provided with first recess correspondingly, the steam valve subassembly still includes first sealing member correspondingly, first sealing member sets up in the first recess, the free end that outer lane valve seat kept off the muscle extends into first recess and compresses tightly first sealing member.

According to the scheme, the first sealing piece is arranged, so that the first steam choked flow condensing cavity is in a sealing state.

Optionally, the steam flow blocking condensation cavity further comprises a second steam flow blocking condensation cavity and a first steam hole for communicating the first steam flow blocking condensation cavity with the second steam flow blocking condensation cavity, the valve cover, the valve seat and the flow blocking condensation piece surround to form the second steam flow blocking condensation cavity, the first steam hole is arranged on the outer ring valve seat rib, and the drain hole is communicated with the second steam flow blocking condensation cavity.

According to the scheme, the steam which is not condensed and liquefied in the first steam flow-blocking condensing cavity can enter the second steam flow-blocking condensing cavity through the first steam hole, and is condensed into liquid through heat exchange with the valve cover, the valve seat and the flow-blocking condensing piece in the second steam flow-blocking condensing cavity, and the steam valve assembly is simple in structure and convenient to manufacture.

Optionally, the choke-flow condenser is provided with at least one condenser side rib, the condenser side rib is arranged in the second steam choke-flow condensing cavity, the upper end of the condenser side rib is propped against the valve cover, a gap exists between the lower end of the condenser side rib and the valve seat, so that the second steam choke-flow condensing cavity is divided into at least one second steam channel with at least the bottom communicated, and the steam channel comprises the second steam channel.

According to this scheme, through setting up condensation piece side fender muscle to can prolong the flow path of steam, increase the convection heat transfer area of steam, and increase the circulation resistance of steam, with increase convection heat transfer time, increase heat exchange volume, in order to further realize the emission of no visible steam in the culinary art process.

Optionally, the valve cover is provided with at least one first valve cover rib, the first valve cover rib is arranged in the second steam choked flow condensation cavity and is close to or contacts with the condensation piece side rib, and a distance E4 between the lower surface of the first valve cover rib and the upper surface of the condensation piece side rib satisfies: e4 is more than or equal to 1mm and less than or equal to 10mm.

According to the scheme, the first valve cover blocking rib is arranged, so that steam can be prevented from flowing into the second steam channel adjacent to the second steam channel from the top of the second steam channel.

Optionally, the valve seat is provided with at least one second valve seat rib, the second valve seat rib is arranged in the second steam choked flow condensation cavity and is close to the condensation piece side rib, the upper surface of the second valve seat rib is higher than the lower surface of the condensation piece side rib, and the distance E5 between the lower surface of the condensation piece side rib and the lower end of the second valve seat rib satisfies: e5 is more than or equal to 1mm and less than or equal to 3mm.

According to this scheme, when E5 satisfies above-mentioned scope to the comdenstion water free flow of liquefaction between adjacent second steam channel avoids ponding.

Optionally, the steam flow blocking condensation cavity further includes a third steam flow blocking condensation cavity and a second steam hole communicating the second steam flow blocking condensation cavity with the third steam flow blocking condensation cavity, the valve cover and the flow blocking condensation piece surround to form the third steam flow blocking condensation cavity, and the second steam hole is arranged on the flow blocking condensation piece.

According to the scheme, the steam which is not condensed and liquefied in the second steam flow blocking condensing cavity can enter the third steam flow blocking condensing cavity through the second steam hole, and is condensed into liquid through heat exchange with the valve cover and the flow blocking condensing piece in the third steam flow blocking condensing cavity, and the steam valve assembly is simple in structure and convenient to manufacture.

Optionally, the valve cover is provided with at least one second valve cover rib, the choke condensate is correspondingly provided with at least one condensate upper rib, the second valve cover rib and the condensate upper rib extend towards each other to divide the third steam choke condensing cavity into at least one third steam channel in communication, and the steam channel comprises the third steam channel.

According to the scheme, the third steam channel is communicated with the external atmosphere through the steam outlet on the valve cover, in the cooking process, when the temperature of the third steam choked flow condensing cavity is higher than the external atmosphere by more than 10 ℃, the dry air and the wet air in the third steam choked flow condensing cavity can perform forced convection heat exchange with the external atmosphere, so that the external environment is utilized to cool the third steam choked flow condensing cavity and the steam outlet on the valve cover, at the moment, the air with lower external temperature is filled with the steam outlet on the valve cover, the temperature of the gas discharged from the steam outlet is far lower than 100 ℃, and scalding is caused after a user touches the steam outlet in the cooking process. Through setting up second valve gap fender muscle and condensate and go up fender muscle to can prolong the flow path of steam, increase the convection heat transfer area of steam, and increase the circulation resistance of steam, with increase convection heat transfer time, increase heat exchange volume, in order to further realize the emission of no visible steam in the cooking process.

Optionally, the minimum diameter D1 of the second steam hole satisfies: 4 mm.ltoreq.D1.ltoreq.10mm, and/or

The choke condensing part is provided with a mounting part, the second steam hole is arranged in the mounting part, the steam valve assembly further comprises a pressure increasing part and a limiting part, the limiting part is connected to the mounting part, the pressure increasing part is arranged in a space surrounded by the limiting part and the mounting part, and the pressure increasing part can move between an initial position for blocking the second steam hole and a biased position for opening the second steam hole.

According to the present aspect, when D1 satisfies the above range, the flow area of steam can be satisfied; by arranging the pressurizing piece, the cooking space can be pressurized, the fragrance of the rice is locked from being discharged, and the cooking effect of the rice is improved. Optionally, the valve seat is further provided with a drain hole, which is provided at a lowest position of the steam valve assembly and communicates with the second steam choked flow condensing chamber.

Drawings

The following drawings of embodiments of the present utility model are included as part of the utility model. The drawings illustrate embodiments of the utility model and their description to explain the principles of the utility model. In the drawings:

Fig. 1 is a perspective view schematically showing a cooking appliance according to a preferred embodiment of the present utility model;

fig. 2 is another perspective view of the cooking appliance of fig. 1, wherein the cover is in an open state and the detachable cover assembly is omitted;

fig. 3 is a perspective view of a cooking appliance according to a modified embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a partial structure of the cooking appliance of FIG. 1;

FIG. 5 is an exploded perspective view of a partial structure of the cooking appliance of FIG. 1, showing a cover and steam valve assembly;

FIG. 6 is an exploded perspective view of the steam valve assembly of FIG. 5;

FIG. 7 is a schematic cross-sectional view of the steam valve assembly of FIG. 6;

FIG. 8 is a schematic perspective view of a valve seat of the steam valve assembly of FIG. 6;

FIG. 9 is an exploded isometric view of a partial structure of the steam valve assembly of FIG. 6, showing a choke condensate and a first seal;

FIG. 10 is an exploded isometric view of a partial structure of the steam valve assembly of FIG. 6, showing a choke condensate, a plenum, and a stop;

FIG. 11 is a schematic cross-sectional view of a partial structure of the cooking appliance of FIG. 1, showing a removable cover assembly, an intake gasket, a valve seat, a choke condensate, and a first seal;

FIG. 12 is a schematic cross-sectional view of a partial structure of the steam valve assembly of FIG. 5, showing a valve seat, a choke condensate, and a first seal;

FIG. 13 is a schematic perspective view of the steam valve assembly of FIG. 5 with the valve cover in an open state;

FIG. 14 is a partial schematic structural view of the steam valve assembly of FIG. 5, wherein only the valve cover and the flow blocking condensate are shown;

FIG. 15 is a schematic cross-sectional view of a partial structure of the steam valve assembly of FIG. 5, showing a valve seat, a choke condensate, a valve cover, a first seal, a second seal, and a third seal;

FIG. 16 is a schematic perspective view of a partial structure of the steam valve assembly of FIG. 5 showing the choke condensate and the valve cover, with the choke condensate not mounted to the valve cover;

FIG. 17 is a schematic cross-sectional view of a partial structure of the cooking appliance of FIG. 1, illustrating a partial structure of the cover and the steam valve assembly;

FIG. 18 is a schematic perspective view of a partial structure of the cooking appliance of FIG. 1, showing the liner, steam valve assembly and removable lid assembly not fully installed;

FIG. 19 is a schematic perspective view of the steam valve assembly of FIG. 5;

FIG. 20 is a schematic perspective view of a partial structure of the cooking appliance of FIG. 1, showing the liner and the steam valve assembly not fully installed;

FIG. 21 is a schematic cross-sectional view of a partial structure of the steam valve assembly of FIG. 5, showing the valve seat, the valve cover, and the second seal;

FIG. 22 is a schematic cross-sectional view of a partial structure of the cooking appliance of FIG. 1, showing a valve seat, a valve cover, a second seal, and a liner;

fig. 23 is another perspective view of the cooking appliance of fig. 1, wherein the cover is in an opened state;

fig. 24 is a perspective view of a cooking appliance according to another modified embodiment of the present utility model;

fig. 25 is a perspective view of the cooking appliance of fig. 24.

Reference numerals illustrate:

100: cooking utensil

110: pot body

111: middle plate

112: pot body outer shell

113: base seat

114: water storage box

115: inner pot

116: pivot shaft

117: water storage tank

118: mounting groove

119: cover opening button

120: cover body

121: panel board

122: face cover

123: lining(s)

124: removable cover assembly

125: cover opening control device

126: lining rib

127: inner lining bulge

128: steam outlet

129: display control device region

130: steam valve assembly

131: steam cavity

132: first steam choked flow condensing chamber

133: second steam choked flow condensing chamber

134: third steam choked flow condensing chamber

135: steam inlet

136: steam outlet

137: drainage hole

138: first steam channel

139: second steam channel

140: valve cover

141: valve cover main body

143: first valve cover rib

144: second valve cover rib

145: second groove

146: mating part

147: hook

148: the first clamping hook is convex

149: the second clamping hook is convex

150: valve seat

151: valve seat body

152: first valve seat rib

152a: inner ring valve seat rib

152b: middle valve seat rib

152c: outer ring valve seat retaining rib

153: second valve seat rib

154: drainage part

155: clamping groove

156: condensed water collecting tank

157: valve seat convex rib

158: mounting shaft

159: valve seat protrusion

160: choke condenser

161: condensation piece main body

162: lower baffle rib of condensing part

162a: first condensation piece lower baffle rib

162b: second condensation piece lower baffle rib

163: side rib of condensing part

164: upper baffle rib of condensing part

165: first notch

166: first groove

167: mounting part

168: third groove

169: clamping part

171: first steam hole

172: second steam hole

173: pressure increasing piece

174: limiting piece

175: limiting piece buckle

176: valve cover buckle

177: condenser joint portion

178: second notch

179: third steam channel

181: drainage sealing ring

182: first sealing member

183: second sealing member

184: third seal member

185: steam inlet sealing ring

186: key circuit board

187: cover opening mating part

Detailed Description

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

In the following description, a detailed description will be given for the purpose of thoroughly understanding the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are familiar to those skilled in the art. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise. Furthermore, 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 numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for illustrative purposes only and are not limiting.

Exemplary embodiments according to the present utility model 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 the embodiments set forth herein. It should be appreciated 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.

As shown in fig. 1 and 2, the present utility model provides a cooking appliance 100, which mainly includes a pot body 110 and a cover body 120. The pot body 110 has a cylindrical inner pot accommodating part. The inner pot 115 may be fixedly disposed at the inner pot receiving part, or may be freely placed in or taken out from the inner pot receiving part, so as to facilitate cleaning of the inner pot 115. The inner pot 115 is generally made of a metal material and has a circular opening on an upper surface for holding a material to be heated, such as rice, soup, etc. The cooker body 110 includes therein a heating means, such as a heating plate, for heating the inner pot 115 to heat the inner pot 115.

It is understood that the cooking appliance 100 according to the present utility model may be an electric rice cooker, an electric pressure cooker, an air fryer, a stewpot, a steamer, a roaster, an oven, a cooker, an electric kettle, or other cooking appliance. In the following, a cooking appliance 100 will be described in detail as an example of an electric rice cooker, and the cooking appliance 100 may have various functions such as cooking porridge in addition to a function of cooking rice.

The cover 120 has a shape substantially corresponding to the pot 110. The cover 120 is openably and closably provided on the pot 110, and in particular, is pivotably connected to the pot 110 by a pivot shaft 116, and is capable of freely pivoting about the pivot shaft 116 axis where the pivot shaft 116 is located between a cover position and an open position with respect to the pot 110, so as to facilitate the cover and the open of the pot 110. When the cover 120 is covered on the pot 110, it covers the inner pot 115 and forms a cooking space between the inner pot 115. The lid 120 also typically has a port seal thereon, which may be made of, for example, a rubber material, disposed between the lid 120 and the inner pot 115 for sealing the cooking space when the lid 120 is in the closed state.

In the present embodiment, the sides of the pot body 110 and the cover 120 close to the pivot shaft 116 are rear sides, whereas the sides of the pot body 110 and the cover 120 away from the pivot shaft 116 are front sides. It is noted that directional terms used herein to describe various components, portions, etc. of the cooking appliance 100, such as "upper", "lower", "above", "below", "upward", "downward", etc., are relative to the cooking appliance 100 in a horizontally placed and upright state. The directional terms "inward", "outward", "inside", "outside", etc. refer to "inward" toward the center of the cooking appliance 100 and "outward" refer to "away from the center of the cooking appliance 100, unless otherwise limited.

As shown in fig. 2, 4 and 5, the cooking appliance 100 further includes a steam valve assembly 130. The steam valve assembly 130 is detachably connected to the cover 120, and is disposed at a rear position of the cover 120. The cover 120 is provided with a display control device region 129, and a key circuit board 186 is provided in the display control device region 129. In the present utility model, the vapor valve assembly 130 and the display handler region 129 are offset to avoid excessive temperatures of the electronic components (e.g., the key circuit board 186) at the display handler region 129, thereby reducing the likelihood of damage to the electronic components thereat.

As shown in fig. 1 to 2 and 23, the front end of the lid 120 is provided with a lid manipulation device 125 for manipulating the opening and closing of the lid 120, and the front end of the pot 110 is correspondingly provided with a lid button 119 and a lid engagement portion 187. When the cover 120 is in the closed state, the cover manipulation device 125 is connected (e.g., engaged) with the cover engagement portion 187. When the lid 120 needs to be opened, the connection between the lid manipulation device 125 and the lid fitting portion 187 can be released by pressing the lid button 119. The end of the cover 120 remote from the door operator 125 is the rear end of the cover 120, and in this embodiment, the pivot shaft 116 is disposed at the rear end of the cover. Specifically, the display handler area 129 is disposed at a front portion of the cover 120, and the steam valve assembly 130 is disposed at a rear portion of the cover 120, so as to facilitate a staggered arrangement of the display handler area 129 and the steam valve assembly 130.

As shown in fig. 1 to 2 and 4, the cover 120 includes a face cover assembly, an inner liner 123 disposed below the face cover assembly, and a removable cover assembly 124 disposed below the inner liner 123. The cover assembly is located at an outer side, i.e., an uppermost side, of the cover body, and in this embodiment, the steam valve assembly 130 is disposed at an inner side of the cover assembly such that the steam valve assembly 130 can be mounted or dismounted from the inner side of the cover body 120 in order to clean the entire steam valve assembly 130. The lid opening handler 125 is disposed at the front end of the liner 123.

Specifically, the cover assembly includes a panel 121 and a cover 122. The panel 121 is made of transparent plastic or glass. The face cover 122 is disposed under the panel 121, and the panel 121 is adhered to an upper surface of the face cover 122. Liner 123 is disposed below face cover 122 and is connected to face cover 122. The steam valve assembly 130 is disposed between the liner 123 and the removable cap assembly 124 and is removably coupled to the liner 123. It is understood that the location of the steam valve assembly 130 is not limited to this embodiment, and the steam valve assembly 130 may be located at other locations of the cover 120 or on the pot 110 as desired.

In a variant embodiment of the present utility model, as shown in fig. 3, the steam valve assembly 130 is disposed outside the face cap assembly and is detachably connected to the face cap assembly (specifically, the face cap 122 of the face cap assembly) so that the steam valve assembly 130 can be mounted or dismounted from the outside of the cover 120 to facilitate cleaning of the steam valve assembly 130. In addition, the outside of the steam valve assembly 130 may be further provided with a decoration panel, and the rear end of the steam valve assembly 130 may be further provided with a button structure (not shown) to facilitate the user to button the steam valve assembly 130 from the rear side.

As shown in fig. 6 and 7, the steam valve assembly 130 mainly includes a valve cover 140 and a valve seat 150 disposed under the valve cover 140. The valve seat 150 is connected to the valve cover 140, and both the valve seat 150 and the valve cover 140 may be made of food grade materials. A steam chamber 131 is formed between the valve seat 150 and the valve cover 140. The steam cavity 131 is provided with a steam inlet 135 and a steam outlet 136, the steam inlet 135 is provided at the valve seat 150 and communicates with the cooking space of the cooking appliance 100, and the steam outlet 136 is provided at the valve cover 140 and communicates with the external atmosphere. When the steam valve assembly 130 is connected to the cover 120, the steam inlet 135 communicates with the cooking space.

A steam channel is formed in the steam cavity 131 and is communicated with the steam inlet 135 and the steam outlet 136, wherein at least one section of the steam channel is provided with a water sealing structure formed by the steam which is choked flow and condensed into liquid. Therefore, the superheated saturated steam entering the steam channel from the steam inlet 135 can flow out after completely immersing the supercooled condensate water, and the superheated saturated steam entering the steam channel from the cooking space fully exchanges heat with the condensate water to be cooled to below 100 ℃ when immersing the condensate water, so that a large amount of condensate water is liquefied and is fused into the condensate water, the discharge of steam can be reduced, and the discharge of no visible steam in the cooking process can be conveniently realized.

Specifically, the steam passages include a first steam passage 138 (see fig. 7 and 12), a second steam passage 139 (see fig. 15) communicating with the first steam passage 138, and a third steam passage 179 (an example of an end steam passage, see fig. 7) communicating with the second steam passage 139, the first steam passage 138 communicating with the steam inlet 135, the third steam passage 179 communicating with the steam outlet 136, the steam outlet 136 being provided at an end of the third steam passage 179.

As shown in fig. 8 and 17, the valve seat 150 is provided with a drain hole 137, and the drain hole 137 is provided at the lowest position of the steam valve assembly 130 and communicates with the steam passage so that condensed water in the steam passage is discharged through the drain hole 137. Specifically, the valve seat 150 is provided with a drain 154, the drain 154 being provided at an end of the steam valve assembly 130 near the pivot shaft 116. The drain portion 154 is provided with a drain hole 137, and the drain hole 137 is provided at one end of the valve seat 150 near the pivot shaft 116, i.e., at the rear end of the valve seat 150, and at the lowest position of the valve seat 150. In the present embodiment, the drain hole 137 communicates with the second steam passage 139.

As shown in fig. 2, 17 and 23, the pot body 110 is provided with a water storage groove 117, the water storage groove 117 faces the cover body 120, and when the cover body 120 is covered on the pot body 110, the position of the water storage groove 117 corresponds to the position of the drain hole 137 so that condensed water discharged from the drain hole 137 enters into the water storage groove 117. Specifically, the pot body 110 includes a middle plate 111 at the top, a base 113 at the bottom, and a pot body case 112 disposed between the middle plate 111 and the base 113. The inner pot 115 is disposed inside the pot body case 112 and the middle plate 111, and above the base 113. The water storage groove 117 is provided on the upper surface of the middle plate 111, and is provided at one end of the middle plate 111 near the pivot shaft 116 (i.e., at the rear end of the middle plate 111). The water reservoir 117 is configured as a groove open upward, and extends in the width direction of the middle plate 111.

The steam valve assembly 130 further includes a drain seal 181. Drain seal 181 is preferably made of a food grade rubber or silicone material. The upper end of the drain seal 181 is provided to the drain portion 154 around the circumferential direction of the drain hole 137. As shown in fig. 2, 17 and 23, when the cover 120 is covered on the pot 110, the lower end of the drain sealing ring 181 abuts against the inner surface (see fig. 17, specifically, the bottom surface) of the water storage groove 117 to be able to close the drain hole 137, and at this time, the condensed water in the steam valve assembly 130 cannot be discharged through the drain hole 137. When the cover 120 is opened, the drain seal 181 is out of contact with the inner surface of the water reservoir 117, so that condensed water in the steam valve assembly 130 can be drained through the drain hole 137 by gravity to fall into the water reservoir 117. According to the cooking appliance 100 of the present utility model, when the opening and closing angle of the cover 120 is equal to or greater than 45 °, the drain of the condensed water at any portion of the steam valve assembly 130 can be achieved without residue. Therefore, it is possible to realize that condensed water collected in the steam valve assembly 130 does not drip back into the inner pot 115 during the entire cooking process, resulting in white dripping of rice.

Since the condensed water in the steam valve assembly 130 is necessarily discharged every time the user opens the cover 120 to take the meal after cooking is finished, the more the condensed water in the steam valve assembly 130 is prevented from accumulating, and the condensed water is discharged without additional operation of the user.

In addition, the water reservoir 117 may collect condensed water dripping from the detachable cover assembly 124, and the condensed water stored in the water reservoir 117 is convenient for a user to dry or air-dry. In the present utility model, drainage and treatment of condensed water of the steam valve assembly 130 are achieved by using the inevitable conventional operation of the user when using the cooking appliance 100, without adding additional operation of the user, so that drainage thereof has an automation effect, and the drainage structure is simple, which can reduce costs.

Fig. 24 to 25 show a modified embodiment of the present utility model in which the pot 110 further includes a mounting groove 118 facing the cover 120 and a water storage case 114 detachably provided to the mounting groove 118, and the water storage groove 117 is provided to the water storage case 114. Specifically, the upper surface of the middle plate 111 is provided with a mounting groove 118, and the mounting groove 118 is provided at one end of the middle plate 111 near the pivot shaft 116, i.e., at the rear end of the middle plate 111, and extends in the width direction of the middle plate 111. The mounting groove 118 is configured as a recess open upward, and the drain hole 137 is provided corresponding to the mounting groove 118.

When the cover 120 is covered on the pot 110, the lower end of the drain sealing ring 181 abuts against the water storage box 114 (specifically, the inner surface of the water storage box 114). That is, the inner surface of the water storage case 114 seals the drain hole 137, and at this time, the condensed water in the steam valve assembly 130 cannot be discharged through the drain hole 137. When the cover 120 is opened, the drain sealing ring 181 is out of contact with the water storage box 114, so that condensed water in the steam valve assembly 130 can be drained through the drain hole 137 to fall into the water storage box 114 under the action of gravity. When cooking is completed, the user can remove the water storage box 114 from the mounting groove 118 to pour out the condensed water in the water storage box 114, and conveniently clean the water storage box 114.

As shown in fig. 6 and 7, the steam valve assembly 130 further includes a choke condensate 160. The choke condensate 160 may be made of a food grade material. The choke condenser 160 is disposed in the steam chamber 131 and partitions the steam chamber 131 into a plurality of communicating steam choke condensing chambers. Specifically, the vapor-flow-blocking condensing chambers include a first vapor-flow-blocking condensing chamber 132, a second vapor-flow-blocking condensing chamber 133 in communication with the first vapor-flow-blocking condensing chamber 132, and a third vapor-flow-blocking condensing chamber 134 (i.e., one example of a terminal vapor-flow-blocking condensing chamber) in communication with the second vapor-flow-blocking condensing chamber 133. The first vapor-choked flow condensing chamber 132 communicates with a vapor inlet 135, the third vapor-choked flow condensing chamber 134 communicates with a vapor outlet 136, and the vapor outlet 136 is disposed at a distal end of the third vapor-choked flow condensing chamber 134. Accordingly, high-temperature steam in the cooking space can enter the first steam choked flow condensing chamber 132 from the steam inlet 135. In the present embodiment, the steam outlet 136 is provided at one side of the valve cover 140. The projections of the steam outlet 136 and the steam inlet 135 on the transverse tangential plane of the steam valve assembly 130 do not overlap.

In this embodiment, a first vapor-flow-blocking condensation chamber 132 is formed around between the flow-blocking condensation 160 and the valve seat 150, and a water-tight construction is located in the first vapor-flow-blocking condensation chamber 132. The second vapor-choked flow condensing chamber 133 is defined between the valve cover 140, the valve seat 150 and the choked flow condensing member 160. The third vapor-choked flow condensing chamber 134 is defined between the valve cover 140 and the choked flow condensing member 160. The shaded portion in fig. 11 is the space occupied by the first vapor-choked flow condensing chamber 132. The first vapor block-flow condensing chamber 132 is disposed in a middle and lower portion of the vapor valve assembly 130 (see fig. 7). As shown in fig. 7, 11 and 2, the valve seat 150 is provided with at least one condensed water collecting groove 156. The condensate collection groove 156 is disposed in the first steam choked flow condensing chamber 132 and is configured to be disposed circumferentially about the steam inlet 135. The condensed water collecting tank 156 is opened upward at an opening thereof and is generally configured in a U-shape in cross section. Specifically, the valve seat 150 includes a valve seat body 151, and a condensed water collecting groove 156 is provided at an upper side of the valve seat body 151, i.e., a groove configured to be recessed downward from an upper surface of the valve seat body 151. Two condensate collection grooves 156 are exemplarily shown in fig. 7, 11 and 12, the condensate collection grooves 156 are preferably configured as annular grooves, and the two condensate collection grooves 156 are coaxially disposed.

The choke condensate 160 is correspondingly provided with at least one condensate lower rib 162. The condensation-member lower rib 162 is disposed in the first vapor-blocking condensation chamber 132 and is configured in a circular ring-shaped structure. The free ends of the condensation lower baffle ribs 162 extend into the space enclosed by the condensation collection tank 156 and into the condensation collection tank 156, and a gap exists between the condensation lower baffle ribs 162 and the inner surface (e.g., bottom surface) of the condensation collection tank 156. The steam is choked by the condensate lower deflector 162 to condense into liquid and accumulate in the condensate collection tank 156 such that the liquid floods the free ends of the condensate lower deflector 162 to form a water tight configuration. Specifically, the choke-flow condenser 160 includes a condenser body 161, and a condenser lower bead 162 is configured as an annular structure extending downward from the condenser body 161. In this embodiment, the condensate lower rib 162 divides the first vapor-choked flow condensing chamber 132 into at least two first vapor channels 138 that communicate at the bottom. The first steam passage 138 is generally configured as an annular passage, and the first steam passage 138 is generally rectangular in cross-section.

As shown in fig. 11 and 12, the free (i.e., lower) end of the condensation lower rib 162 is provided with a plurality of first notches 165. The first notch 165 is configured as a notch extending from the upper end surface of the condensation lower rib 162. The shape of the first notch 165 may be semi-circular, U-shaped, square, rectangular, or any other suitable shape. The plurality of first notches 165 are spaced apart along the circumference of the condensation piece lower rib 162. Preferably, the plurality of first notches 165 are equally spaced along the circumference of the condensation lower rib 162. Specifically, the lower end of the first notch 165 is located in the condensate water collecting tank 156, i.e., lower than the upper surface of the valve seat body 151, and the upper end of the first notch 165 is located outside the condensate water collecting tank 156, i.e., higher than the upper surface of the valve seat body 151.

In the present embodiment, the condensation-member lower rib 162 includes a first condensation-member lower rib 162a and a second condensation-member lower rib 162b provided outside the first condensation-member lower rib 162 a. The first condensation piece lower blocking rib 162a and the second condensation piece lower blocking rib 162b are each configured in a circular shape, and the free ends of the first condensation piece lower blocking rib 162a and the second condensation piece lower blocking rib 162b are each provided with a plurality of first notches 165.

As shown in fig. 7, 11 to 13, the valve seat 150 is provided with at least one first valve seat rib 152. The first valve seat bead 152 is configured as an annular structure extending upward from the upper surface of the valve seat body 151. The first valve seat ribs 152 are disposed in the first vapor choked flow condensing chamber 132 and around the circumference of the vapor inlet 135, and one condensed water collecting groove 156 is disposed between two adjacent first valve seat ribs 152.

Specifically, the first valve seat bead 152 includes an inner ring valve seat bead 152a formed with the steam inlet 135, an intermediate valve seat bead 152b disposed outside the inner ring valve seat bead 152a, and an outer ring valve seat bead 152c disposed outside the intermediate valve seat bead 152 b. That is, the intermediate seat rib 152b is disposed radially between the inner and outer seat ribs 152a, 152c. In the present embodiment, the upper surface of the outer ring seat rib 152c is higher than the upper surface of the inner ring seat rib 152a, and the upper surface of the inner ring seat rib 152a is higher than the upper surface of the intermediate seat rib 152 b. The first condensation piece lower rib 162a is disposed radially between the inner ring seat rib 152a and the intermediate seat rib 152 b. The second condensation piece lower rib 162b is disposed radially between the intermediate seat rib 152b and the outer ring seat rib 152c.

As shown in fig. 12, the vapor-flow-blocking condensing chamber further includes a first vapor hole 171 that communicates the first vapor-flow-blocking condensing chamber 132 with the second vapor-flow-blocking condensing chamber 133. The first steam hole 171 is located at a higher position of the first steam choked flow condensing chamber 132, and is provided at the first valve seat rib 152 (specifically, at the outer ring valve seat rib 152 c). The first steam hole 171 may be a through hole of any suitable shape. Specifically, as shown in fig. 6 and 13, the outer ring valve seat rib 152c is provided with at least one second notch 178, and the first steam hole 171 is a through hole formed between the second notch 178 provided on the outer ring valve seat rib 152c and the choke condenser 160 (see fig. 12). Two second notches 178 are exemplarily shown in fig. 6, and thus two first steam holes 171 are formed. In one embodiment, not shown, the first steam hole 171 may also be any suitably shaped through hole provided in the outer ring seat rib 152 c.

In the present embodiment, when cooking is started, the inside of the first steam choked flow condensing chamber 132 is in a normal temperature dry state, that is, no condensed water and condensed water drops. After cooking for a while, nucleate boiling begins when the water in the inner pot 115 reaches 100 ℃, and high temperature steam in the cooking space enters the first steam choked flow condensing chamber 132 through the steam inlet 135. The high-temperature steam entering the first steam choked flow condensing chamber 132 exchanges heat with the choked flow condensing member 160 and the valve seat 150 with a lower temperature, so that a part of the high-temperature steam is condensed and liquefied and is attached to the choked flow condensing member 160 (for example, attached to the lower rib 162 of the condensing member), and a part of the high-temperature steam which is not condensed and liquefied and the dry air which is expanded by heating in the cooking space can pass through the first notch 165, finally reach the first steam hole 171 and enter the second steam choked flow condensing chamber 133. Arrows in fig. 12 schematically show the flow path of the high temperature steam in the cooking space in the first steam choked flow condensing chamber 132.

As more condensate droplets accumulate on the choke condensate 160, the condensate falls under the force of gravity onto the valve seat 150. Since the position of the condensate collection tank 156 is the lowest, condensate is first accumulated in the condensate collection tank 156. As more and more condensate falls from the choke condensate 160, the condensate fills the condensate collection tank 156 and accumulates on the upper surface of the condensate body 161. As more and more condensed water is accumulated on the upper surface of the condensation member main body 161, the liquid level of the condensed water gradually floods the first notch 165 provided on the condensation member lower rib 162, thereby forming a water-tight structure therein. Since the cooking space is in a sealed state, when the steam in the cooking space flows at this time, the steam must be completely immersed in the supercooled condensate at the water sealing structure to flow out. Because the liquid condensed water is in direct contact with the valve seat 150, the condensed water can exchange heat with the valve seat 150 sufficiently, so that the temperature of the condensed water is less than 100 ℃. While the superheated saturated steam of 100 ℃ entering the first steam choked flow condensing cavity 132 from the cooking space is immersed in the condensed water, the superheated saturated steam is fully heat-exchanged with the condensed water to be cooled to below 100 ℃, and a large amount of superheated saturated steam is condensed, liquefied and fused in the condensed water, so that the discharge of visible steam is reduced.

In the present embodiment, two water sealing structures are formed, in which a first water sealing structure is formed in common between the inner ring valve seat bead 152a, the first condensation piece lower bead 162a, the intermediate valve seat bead 152b, and the valve seat body 151 (specifically, the upper surface of the valve seat body 151 and the condensation water collection groove 156), a second water sealing structure is formed in common between the intermediate valve seat bead 152b, the second condensation piece lower bead 162b, the outer ring valve seat bead 152c, and the valve seat body 151 (specifically, the upper surface of the valve seat body 151 and the condensation water collection groove 156), and the second water sealing structure is provided around the first water sealing structure.

As shown in fig. 12, the maximum distance E1 between the first notch 165 and the bottom surface of the condensate collection tank 156 is a critical dimension of the water-tight structure, and if E1 is too small, the steam flow cross-sectional area is small, which is easy to overflow, and if E1 is too large, it takes a long time to form the water-tight structure. Thus, the smaller the value of E1 should be, the better on the premise that the total effective steam flow cross-sectional area formed by all the tooth-shaped notches at the ends of the condensation member lower rib 162 (including the first condensation member lower rib 162a and the second condensation member lower rib 162 b) is greater than or equal to the cross-sectional area of the steam inlet 135. Preferably, 1 mm.ltoreq.E1.ltoreq.5 mm. For example, E1 may be 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, or 5mm. Further preferably e1=2.4 mm±0.5mm.

The height H1 of the inner ring valve seat rib 152a should be higher than the liquid level of the condensed water after cooking is finished, so that the condensed water on the valve seat 150 in the first steam choked flow condensing cavity 132 is prevented from overflowing through the steam inlet 135 and flowing back into the inner pot 115 to cause white dripping of the cooked rice. Preferably, 5 mm.ltoreq.H1.ltoreq.30mm. For example, H1 may be 5mm, 7.5mm, 10mm, 12.5mm, 15mm, 17.5mm, 20mm, 22.5mm, 25mm, 27.5mm or 30mm. Further preferably, h1=9 mm±0.5mm.

The height H2 of the middle valve seat rib 152b affects not only the water storage amount of the water seal structure but also the pressure value in the cooking space and the overflow pan. Preferably, 1 mm.ltoreq.H2-E1.ltoreq.5 mm. That is, 1 mm+E1.ltoreq.H2.ltoreq.5mm+E1, when E1 is preferably 2.4mm, 3.4 mm.ltoreq.H2.ltoreq.7.4 mm. For example, H2 may be 3.4mm, 3.9mm, 4.4mm, 4.9mm, 5.4mm, 5.9mm, 6.4mm, 6.9mm, or 7.4mm. Further preferably, h2=5.4 mm±0.5mm.

Preferably, the distance E2 between the first condensation piece lower rib 162a and the inner ring valve seat rib 152a satisfies: 3 mm.ltoreq.E2.ltoreq.5mm, and the distance E3 between the first condensation piece lower bead 162a and the intermediate valve seat bead 152b satisfies: e3 is more than or equal to 2mm and less than or equal to 5mm. For example, E2 may be 3mm, 3.5mm, 4mm, 4.5mm, or 5mm, and E3 may be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, or 5mm. Further preferably e2=4 mm±0.5mm, e3=3 mm±0.5mm.

As shown in fig. 9, 11 and 12, the choke condensate 160 is provided with a first recess 166. The first groove 166 is configured as a groove open downward, and the first groove 166 is configured in a U-shape in cross section. The steam valve assembly 130 further includes a first seal 182. The first seal 182 is preferably made of a food grade rubber or silicone material. The first seal 182 is disposed in the first groove 166 along the circumferential direction of the first groove 166. The free end (i.e., upper end) of the outer ring seat bead 152c extends into the first groove 166 in the circumferential direction of the first groove 166 and presses the first seal 182 in the circumferential direction of the first seal 182 to fix the first seal 182 in the first groove 166. Accordingly, by providing the first seal 182, the first vapor blocking condensation chamber 132 can be placed in a sealed state.

The hatched portion in fig. 13 is a structure that forms a second vapor-flow-blocking condensing chamber 133, and the second vapor-flow-blocking condensing chamber 133 is disposed around the first vapor-flow-blocking condensing chamber 132. As shown in fig. 6, 9 to 10 and 13 to 16, the choke condensate 160 is provided with at least one condensate-side rib 163. The condensate-side rib 163 is disposed in the second vapor-choked flow condensing chamber 133, and is generally configured as a square straight wall structure extending in the vertical direction. The upper end of the condensate side rib 163 abuts against the valve cover 140, and a gap exists between the lower end of the condensate side rib 163 and the valve seat 150 to partition the second vapor-choked flow condensing chamber 133 into at least one second vapor channel 139 (see fig. 15) communicating at least at the bottom. A plurality of condenser-side beads 163 are exemplarily shown in fig. 9 to 10 and 13 to 16, and the plurality of condenser-side beads 163 are respectively disposed at both sides of the condenser main body 161 and are disposed in parallel to each other to divide the second vapor-blocking condenser chamber 133 into two second vapor passages 139, i.e., the two second vapor passages 139 are oppositely disposed at both sides of the condenser main body 161.

The second steam passages 139 are generally configured in a rectangular parallelepiped shape, and adjacent two of the second steam passages 139 are connected end to end. As shown in fig. 15, the larger the height H3 of the second steam channel 139, the better the condensing effect, but too large the value of H3 may make the steam valve assembly 130 difficult to clean and difficult to process, and the height of the cover 120 also limits the value of H3. Preferably, 10 mm.ltoreq.H2.ltoreq.50 mm. For example, H3 may be 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm or 50mm. Further preferably, h3=33 mm±0.5mm.

The smaller the width W1 of the second steam passage 139, the better the condensing effect, but the smaller the value of H3, the more difficult the cleaning and the processing of the steam valve assembly 130. Preferably, 5 mm.ltoreq.W1.ltoreq.20mm. For example, H3 may be 5mm, 7.5mm, 10mm, 12.5mm, 15mm, 17.5mm or 20mm. Further preferably w1=9 mm±0.5mm.

As shown in fig. 13 to 16, the valve cover 140 is provided with at least one first valve cover rib 143. The first valve cover bead 143 is disposed in the second vapor-choked flow condensing chamber 133 and is adjacent to or in contact with the condensate-side bead 163, for example, an upper section of the condensate-side bead 163. By providing the first valve cover rib 143, steam can be prevented from escaping from the top of the second steam passage 139 into the second steam passage 139 adjacent thereto. Specifically, the valve cover 140 includes a valve cover body 141, and the first valve cover bead 143 is constructed in a straight wall structure extending downward from a lower surface of the valve cover body 141. The upper surface of the condensation-side rib 163 abuts against the lower surface of the valve cover main body 141, and the lower surface of the first valve cover rib 143 is higher than the lower surface of the condensation-side rib 163.

As shown in fig. 14, preferably, a distance E4 between the lower surface of the first cover bead 143 and the upper surface of the condensation side bead 163 (i.e., the height of the first cover bead 143) satisfies: e4 is more than or equal to 1mm and less than or equal to 10mm. For example, E4 may be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm. Further preferably, e4=4 mm±0.5mm.

The valve seat 150 is provided with at least one second valve seat rib 153. The second valve seat rib 153 is disposed in the second vapor-choked flow condensing chamber 133 and is adjacent to the condensate-side rib 163, for example, adjacent to a lower section of the condensate-side rib 163. The second valve seat bead 153 is constructed as a straight wall structure extending upward from the upper surface of the valve seat main body 151. The upper surface of the second valve seat rib 153 is higher than the lower surface of the condensation piece side rib 163 and lower than the lower surface of the first valve cover rib 143. In the present embodiment, the first valve cover rib 143 and the second valve seat rib 153 are provided on both sides of the condensation piece side rib 163.

Preferably, a distance E5 between the lower surface of the condensation piece side rib 163 and the lower end of the second valve seat rib 153 (i.e., the upper surface of the valve seat main body 151) satisfies: e5 is more than or equal to 1mm and less than or equal to 3mm. For example, E5 may be 1mm, 1.5mm, 2mm, 2.5mm, or 3mm. Further preferably e5=2mm±0.5mm. Thereby, condensed water that facilitates liquefaction flows between adjacent second steam channels 139.

As shown in fig. 6-7, 13, 15-16, 21-22, the steam valve assembly 130 further includes a second seal 183. The second seal 183 is preferably made of a food grade rubber or silicone material. The outer peripheral edge of the valve seat 150 is provided with a valve seat bead 157 extending in the circumferential direction, and the outer peripheral edge of the valve cover 140 is correspondingly provided with a second groove 145 extending in the circumferential direction. The second seal 183 is disposed in the second groove 145 along the circumferential direction of the second groove 145. The free end of the valve seat bead 157 extends into the second groove 145 in the circumferential direction of the second groove 145 and presses the second seal 183 in the circumferential direction of the second seal 183 to fix the second seal 183 in the second groove 145. Accordingly, by providing the second sealing member 183, the second vapor choked flow condensing chamber 133 can be made to be in a sealed state.

As shown in fig. 7, 9 to 10, 13 to 14 and 16, the steam-blocking condensing chamber further includes a second steam hole 172 for communicating the second steam-blocking condensing chamber 133 with the third steam-blocking condensing chamber 134, and the second steam hole 172 is provided to the blocking condenser 160. In the present embodiment, the second steam hole 172 is provided on the condenser main body 161. The second steam hole 172 may be configured as a circular through hole. Preferably, the projections of the second steam holes 172 and the steam outlets 136 on the transverse section of the steam valve assembly 130 do not overlap, and the projections of the second steam holes 172 and the first steam holes 171 on the transverse section of the steam valve assembly 130 do not overlap. It is further preferred that the second steam hole 172 and the steam outlet 136 are oppositely disposed at both ends of the third steam blocking condensing chamber 134.

Preferably, the minimum diameter D1 of the second steam hole 172 satisfies: 4 mm.ltoreq.D1.ltoreq.10mm (see FIG. 7). For example, D1 may be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10mm. Further preferably d1=6 mm±0.5mm. It will be appreciated by those skilled in the art that the shape of the second steam hole 172 is not limited to the present embodiment, and the second steam hole 172 may be configured as a through hole of any other suitable shape as needed.

In the present embodiment, the drain hole 137 communicates with the second vapor choked flow condensing chamber 133. In the present embodiment, the drain hole 137 is located at the lowest position of the steam valve assembly 130, regardless of the state in which the cover 120 is covered on the pot 110, or the state in which the cover 120 is in the open position during the opening of the cover 120. When the cover 120 is opened, condensed water in the first steam-blocking condensing chamber 132 can enter the second steam-blocking condensing chamber 133 through the first steam hole 171, condensed water in the third steam-blocking condensing chamber 134 can enter the second steam-blocking condensing chamber 133 through the second steam hole 172, and condensed water in the second steam-blocking condensing chamber 133 can be discharged through the drain hole 137 located at the lowest position.

As shown in fig. 7, 9 and 10, the choke condenser 160 is provided with a mounting portion 167, and the second steam hole 172 is provided at the mounting portion 167. The steam valve assembly 130 further includes a plenum 173 and a stop 174. The pressure increasing member 173 is constructed in a spherical structure and may be made of glass or ceramic material, thereby having low material costs. The stop 174 is configured in a hemispherical configuration. The lower end of the stopper 174 is connected to the mounting portion 167, and the pressurizing member 173 is provided in a space surrounded by the stopper 174 and the mounting portion 167. Specifically, the lower end of the stopper 174 is provided with a stopper catch 175, and the mounting portion 167 includes a clamping portion 169 correspondingly, and the stopper 174 is mounted to the mounting portion 167 via the stopper catch 175 being clamped to the clamping portion 169.

In the present embodiment, the number of stopper snaps 175 and the number of snap-in portions 169 are two. Preferably, the two stopper snaps 175 are oppositely disposed at both sides of the stopper 174, and the two catching portions 169 are oppositely disposed at both sides of the second steam hole 172. It is understood that the number of the stopper catch 175 and the engagement portion 169 is not limited to the present embodiment, and the number of the stopper catch 175 and the engagement portion 169 may be three, four, or more as needed.

The pressurizing member 173 is movable between an initial position to close the second steam hole 172 and a biased position to open the second steam hole 172. In the present embodiment, the initial position of the pressurizing member 173 is located below the biased position thereof. When the pressure increasing member 173 is located at the initial position, there is a line contact between the pressure increasing member 173 and the mounting portion 167 (specifically, the inner surface of the second steam hole 172), and the contact portion between the pressure increasing member 173 and the mounting portion 167 forms a circular ring shape. By providing the pressurizing member 173, it is capable of pressurizing the cooking space and has a target pressure range of 400pa to 4000pa, so as to enhance the cooking effect of the rice. Because the pressurizing range of the pressurizing member 173 of the present embodiment is low, there is no high pressure explosion hidden trouble and high safety of the existing pressure rice cooker, and no additional pressure relief device is required, and the structure is simple. In addition, the strength of the structural part and the sealing ring is not required to be enhanced due to high pressure, so that the common normal pressure rice cooker can be adapted without changing the structure of the cooker body.

Further, the pressurizing member 173 is disposed at the second steam hole 172, i.e., at the end of the large cooling chamber, and the pressurizing area not only has the cooking space, but also has the steam choked flow condensing chamber, which is equivalent to the external environment of the existing cooking appliance. Thus, the pressurized area is the internal and external environment of the entire cooking appliance 100 with respect to the cooking space. Therefore, the pressurizing value of the cooking space is more balanced and stable, the pot is not easy to overflow, and the overflow substances are prevented from contacting the pressurizing piece 173. The pressurizing member 173 can also prevent steam from being visible due to natural convection of hot air discharged to the outside during stewing or heat preservation, and can lock the fragrance of rice from being discharged.

The flow path of steam entering the second steam-blocking condensing chamber 133 from the first steam hole 171 is schematically shown in fig. 14 in the second steam-blocking condensing chamber 133. That is, the steam entering the second steam flow-blocking condensing chambers 133 from the first steam holes 171 passes through each of the second steam passages 139 in turn and finally reaches the second steam holes 172 to enter the third steam flow-blocking condensing chambers 134, so that the convection heat exchange area of the steam is increased and the circulation resistance of the steam is increased in a limited space to increase the convection heat exchange time and heat exchange amount.

The hatched portion in fig. 16 is a structure that forms the third vapor choked flow condensing chamber 134. Preferably, the projection of the third vapor block flow condensing cavity 134 onto the transverse section of the vapor valve assembly 130 covers a central region of the transverse section of the vapor valve assembly 130. The third vapor block-flow condensing chamber 134 is disposed in a middle and upper portion of the vapor valve assembly 130. In the present embodiment, the third vapor block condensation chamber 134 is disposed above the first vapor block condensation chamber 132, and the second vapor block condensation chamber 133 is disposed around the third vapor block condensation chamber 134.

As shown in fig. 7 and 16, the valve cover 140 is provided with at least one second valve cover bead 144 (one example of an end valve cover bead). The second cover rib 144 is constructed in an elongated structure extending downward from the lower surface of the cover main body 141. The choke condensate 160 is correspondingly provided with at least one condensate upper rib 164. The condensation upper rib 164 is configured as an elongated structure extending upward from the upper surface of the condensation body 161. The second valve cover rib 144 and the condensate upper rib 164 are disposed in parallel and extend toward one another to divide the third vapor-choked flow condensing chamber 134 into at least one third vapor passage 179 that communicates. As can be seen from fig. 16, a third steam channel 179 is formed.

In the present embodiment, the number of the second valve cover bead 144 and the condensation member upper bead 164 is plural. Five second bonnet ribs 144 and five condensate upper ribs 164 are illustratively shown in FIG. 16. The adjacent two second valve cover ribs 144 are arranged in a splayed manner, and the adjacent two upper condensation member ribs 164 are arranged in a splayed manner.

The flow path of steam entering the third vapor block-flow condensing chamber 134 from the second vapor port 172 is schematically illustrated in fig. 16 in the third vapor block-flow condensing chamber 134. That is, the steam entering the third steam choked flow condensing chamber 134 from the second steam hole 172 can pass through the third steam channel 179 and finally reach the steam outlet 136, so that the heat convection area of the steam is increased and the flow resistance of the steam is increased in a limited space, thereby increasing the heat convection time and increasing the heat exchange amount.

According to the cooking appliance 100 of the present utility model, the inventor has confirmed through a plurality of experiments that the effect that no visible steam is discharged during the whole cooking process can be achieved after the high temperature steam in the cooking space is cooled through the first steam flow blocking condensing chamber 132 and the second steam flow blocking condensing chamber 133. In order to further ensure that the cooking appliance 100 is not discharged with steam during operation, the third steam choked flow condensing chamber 134 is provided without adding additional parts and costs, so as to increase the cooling performance margin and further prevent visible steam from being directly discharged to the outside. In addition, because the steam outlet 136 is communicated with the external atmosphere, the third steam choked flow condensing cavity 134 exchanges heat with the external atmosphere, so that the temperature of the steam outlet 136 can be reduced, and the user is prevented from being scalded.

As shown in fig. 6-7 and 15-16, the steam valve assembly 130 further includes a third seal 184. The third seal 184 is preferably made of a food grade rubber or silicone material. The choke condensate 160 is provided with a third groove 168 extending in the circumferential direction, the third groove 168 being arranged around the condensate upper rib 164. The third recess 168 is configured as a U-shaped recess open upward. The third seal 184 is disposed in the third groove 168 along the circumferential direction of the third groove 168, and the upper end of the third seal 184 abuts against the lower surface of the cap body 141 of the cap 140 (see fig. 15), and the cap body 141 compresses the third seal 184 in the third groove 168. Therefore, by providing the third seal 184, the third vapor choked flow condensing chamber 134 can be placed in a sealed state.

As shown in fig. 6, 19 and 21, one end of the valve seat 150 is provided with a mounting shaft 158, one end of the valve cover 140 is provided with a fitting portion 146, the other end of the valve cover 140 is provided with a hook 147, the fitting portion 146 is rotatably mounted to the mounting shaft 158 (e.g., caught at the bottom of the mounting shaft 158), and the hook 147 is caught to the outer peripheral edge of the valve seat 150 to mount the valve seat 150 to the valve cover 140.

More specifically, referring to fig. 21 and 22, the hook 147 includes a first hook protrusion 148, and the first hook protrusion 148 is provided at a free end of the hook 147 and is configured as an upwardly extending protrusion. The outer peripheral edge of the valve seat 150 is provided with a valve seat protrusion 159 extending downward, and the first catching protrusion 148 catches to the valve seat protrusion 159. As shown in fig. 21, when the valve cover 140 and the valve seat 150 are installed, the hooks 147 are pulled rightward so that the first hook protrusions 148 enter the inner sides of the valve seat protrusions 159 to clamp the first hook protrusions 148 to the valve seat protrusions 159.

As shown in fig. 10, 13-14 and 16, the choke condensate 160 is detachably connected to the valve cover 140. It will be appreciated that the choke condensate 160 may also be removably connected to the valve seat 150, as desired. Specifically, the valve cover 140 is provided with a plurality of valve cover buckles 176, and the choke-flow condenser 160 is correspondingly provided with a plurality of condenser clamping parts 177, and the valve cover buckles 176 are clamped to the condenser clamping parts 177 to detachably connect the choke-flow condenser 160 to the valve cover 140. The plurality of valve cover clips 176 and the plurality of condenser clips 177 are disposed opposite each other on both sides of the third vapor choked flow condensing chamber 134, i.e., opposite each other on both sides of the third seal 184. Six valve cover snaps 176 and six condensate snaps 177 are exemplarily shown in fig. 13 and 16.

More specifically, the cap clip 176 is connected with the cap body 141, and is configured in an L-shaped structure. The condenser clamping portion 177 is constructed in a straight wall structure extending in a horizontal direction, when the choke-flow condenser 160 is mounted to the valve cover 140, the choke-flow condenser 160 may be placed in parallel with the valve cover 140, and the positions of the valve cover buckle 176 and the condenser clamping portion 177 correspond to each other, so that the choke-flow condenser 160 may be detachably mounted to the valve cover 140 by pushing the choke-flow condenser 160.

As shown in fig. 3, 18, 20 and 22, the liner 123 is provided with liner ribs 126 and liner protrusions 127. The liner stop rib 126 is provided at one end of the liner 123 near the pivot shaft 116, i.e., the rear end of the liner 123. The liner boss 127 is farther from the pivot shaft 116 relative to the liner stop bead 126, that is, the liner boss 127 is closer to the front end of the liner 123 relative to the liner stop bead 126. One end of the steam valve assembly 130 is inserted inside the liner stop rib 126, and the other end of the steam valve assembly 130 is clamped to the liner boss 127 to detachably connect the steam valve assembly 130 to the liner 123.

Specifically, the underside of the valve seat 150 abuts against the liner stop rib 126, and the catch 147 of the valve cover 140 snaps into engagement with the liner boss 127 to removably connect the steam valve assembly 130 to the liner 123. More specifically, as shown in fig. 22, the hook 147 is provided with a second hook projection 149, and the second hook projection 149 is caught inside the lining projection 127. After the second hook protrusion 149 is clamped to the liner protrusion 127, the whole hook 147 can be subjected to certain compression deformation under the action of the liner protrusion 127, so that the clamping between the first hook protrusion 148 and the valve seat protrusion 159 is firmer, and meanwhile, the clamping between the second hook protrusion 149 and the liner protrusion 127 is firmer.

As shown in fig. 2, 8, 18, 20 and 23, the bottom of the valve seat 150 is provided with a catching groove 155. The catch 155 is disposed at an end of the valve seat 150 proximate the pivot shaft 116. In the present embodiment, one engaging groove 155 is provided on each of both sides of the bottom of the valve seat 150, and the two engaging grooves 155 are provided to face each other. The lid 120 further includes a lid opening operation device 125, where the lid opening operation device 125 is disposed at an end of the liner 123 away from the pivot shaft 116, i.e., a front end of the liner. One end (i.e., the rear end) of the removable lid assembly 124 is plugged into the clamping groove 155, and the other end (i.e., the front end) of the removable lid assembly 124 is clamped to the lid opening handler 125 to detachably connect the removable lid assembly 124 to the liner 123. According to the cooking appliance 100 of the present embodiment, the detachable lid assembly 124 can be installed only after the steam valve assembly 130 is installed in place, otherwise the detachable lid assembly 124 cannot be installed, and thus has an effect of preventing the steam valve assembly 130 from being installed.

As shown in fig. 11, the cooking appliance 100 further includes an steam inlet gasket 185. The steam inlet gasket 185 is preferably made of a food grade rubber or silicone material. The removable cover assembly 124 is provided with an outlet opening 128. The steam outlet 128 corresponds to the position of the steam inlet 135 and is configured as a circular through hole. One end (specifically, the lower end) of the steam inlet seal ring 185 is disposed on the detachable cover assembly 124 around the circumference of the steam outlet 128, and the other end (specifically, the upper end) of the steam inlet seal ring 185 abuts against the valve seat main body 151 around the circumference of the steam inlet 135 to seal the gap between the steam valve assembly 130 and the detachable cover assembly 124, preventing steam in the cooking space from entering other positions of the cover body 120 through the gap between the steam valve assembly 130 and the detachable cover assembly 124.

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 utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described by way of the above embodiments, but it should be understood that the above embodiments are for illustrative and explanatory purposes only and that the utility model is not limited to the above embodiments, but is capable of numerous variations and modifications in accordance with the teachings of the utility model, all of which fall within the scope of the utility model as claimed.

Claims

1. A cooking appliance, comprising:

a pot body;

a steam valve assembly detachably connected to the cover and comprising:

A valve cover;

the steam channel is formed in the steam cavity and is communicated with the steam inlet and the steam outlet, and at least one section of the steam channel is provided with a water sealing structure formed by the flow blocking condensation of steam into liquid;

2. The cooking appliance according to claim 1, wherein the pot body is provided with a water storage groove facing the cover body, and a position of the water storage groove corresponds to a position of the drain hole when the cover body is covered on the pot body.

3. The cooking appliance of claim 2, wherein the valve seat further comprises a drain portion, the drain hole is provided in the drain portion, the steam valve further comprises a drain seal ring provided in the drain portion around a circumference of the drain hole, the drain seal ring abuts against an inner surface of the water storage tank to seal the drain hole when the lid is closed on the pot, and the drain seal ring is out of contact with the inner surface of the water storage tank to open the drain hole when the lid is opened, so that liquid in the steam channel can be discharged from the drain hole and into the water storage tank.

4. A cooking appliance according to claim 3, wherein the pot further comprises a mounting groove facing the cover and a water storage box detachably provided in the mounting groove, the water storage groove being provided in the water storage box.

5. The cooking appliance of claim 1, further comprising a pivot shaft via which the lid is pivotably connected to the pot, the drain hole being disposed at an end of the valve seat proximate the pivot shaft.

6. The cooking appliance of any one of claims 1 to 5, wherein the steam valve assembly further comprises a choke condenser disposed in the steam cavity and dividing the steam cavity into a plurality of communicating steam choke condensers, the steam choke condensers comprising a first steam choke condenser in communication with the steam inlet, the choke condenser and the valve seat surrounding the first steam choke condenser, the water-tight construction being located in the first steam choke condenser.

7. The cooking appliance of claim 6, wherein the valve seat is provided with at least one condensate collection groove disposed in the first steam choked flow condensing chamber and disposed circumferentially about the steam inlet, the choked flow condensing member being correspondingly provided with at least one condensate lower rib disposed in the first steam choked flow condensing chamber, a free end of the condensate lower rib extending into a space enclosed by the condensate collection groove and into the condensate collection groove, the steam choked flow condensed by the condensate lower rib into liquid accumulated in the condensate collection groove such that the liquid floods the free end of the condensate lower rib forming the watertight seal configuration.

8. The cooking appliance of claim 7, wherein the cooking appliance further comprises a handle,

the condensation piece lower baffle rib divides the first steam flow blocking condensation cavity into at least two first steam channels with communicated bottoms, and the steam channels comprise the first steam channels and/or

9. The cooking appliance of claim 7, wherein the valve seat is provided with at least one first valve seat rib disposed in the first vapor-blocking condensing chamber and disposed circumferentially about the vapor inlet, and one condensate collection groove is disposed between each adjacent two of the first valve seat ribs.

10. The cooking appliance of claim 9, wherein the cooking appliance further comprises a handle,

the first valve seat blocking rib comprises an inner ring valve seat blocking rib forming the steam inlet and an intermediate valve seat blocking rib arranged outside the inner ring valve seat blocking rib,

11. The cooking appliance of claim 10, wherein the cooking appliance further comprises a handle,

the lower baffle rib of the condensation piece comprises a first lower baffle rib of the condensation piece, the first lower baffle rib of the condensation piece is arranged between the baffle rib of the inner ring valve seat and the baffle rib of the middle valve seat,

12. The cooking appliance of claim 11, wherein the first valve seat bead comprises an outer ring valve seat bead disposed outside of the intermediate valve seat bead, the choke condensate correspondingly provided with a first groove, the steam valve assembly correspondingly further comprising a first seal disposed in the first groove, a free end of the outer ring valve seat bead extending into the first groove and compressing the first seal.

13. The cooking appliance of claim 12, wherein the vapor-flow-blocking condensing chamber further comprises a second vapor-flow-blocking condensing chamber and a first vapor aperture that communicates the first vapor-flow-blocking condensing chamber with the second vapor-flow-blocking condensing chamber, the valve cover, the valve seat, and the flow-blocking condenser surrounding the second vapor-flow-blocking condensing chamber, the first vapor aperture being disposed at the outer-ring valve seat rib, the drain aperture communicating with the second vapor-flow-blocking condensing chamber.

14. The cooking appliance of claim 13, wherein the flow-blocking condenser is provided with at least one condenser-side rib disposed in the second vapor-blocking condensing chamber, an upper end of the condenser-side rib abutting against the valve cover, a gap between a lower end of the condenser-side rib and the valve seat to separate the second vapor-blocking condensing chamber into at least one second vapor channel in at least bottom communication, the vapor channel including the second vapor channel.

15. The cooking appliance of claim 14, wherein the valve cover is provided with at least one first valve cover rib disposed in the second vapor-choked flow condensing chamber and adjacent to or in contact with the condensation-side rib, a distance E4 between a lower surface of the first valve cover rib and an upper surface of the condensation-side rib satisfying: e4 is more than or equal to 1mm and less than or equal to 10mm.

16. The cooking appliance according to claim 14, wherein the valve seat is provided with at least one second valve seat rib provided in the second vapor-blocking condensation chamber and close to the condensation-piece side rib, an upper surface of the second valve seat rib is higher than a lower surface of the condensation-piece side rib, and a distance E5 between the lower surface of the condensation-piece side rib and a lower end of the second valve seat rib satisfies: e5 is more than or equal to 1mm and less than or equal to 3mm.

17. The cooking appliance of claim 13, wherein the vapor-flow-blocking condensing chamber further comprises a third vapor-flow-blocking condensing chamber and a second vapor aperture that communicates the second vapor-flow-blocking condensing chamber with the third vapor-flow-blocking condensing chamber, the valve cover and the flow-blocking condenser surrounding to form the third vapor-flow-blocking condensing chamber, the second vapor aperture disposed in the flow-blocking condenser.

18. The cooking appliance of claim 17, wherein the valve cover is provided with at least one second valve cover rib, the flow-blocking condenser is correspondingly provided with at least one condenser upper rib, the second valve cover rib and the condenser upper rib extending toward each other to divide the third vapor flow-blocking condenser cavity into at least one third vapor channel, the vapor channel comprising the third vapor channel.

19. The cooking appliance of claim 17, wherein the cooking appliance further comprises a handle,

the minimum diameter D1 of the second steam hole satisfies: 4 mm.ltoreq.D1.ltoreq.10mm, and/or