CN219479798U - Steam cooking utensil - Google Patents

Abstract

The steam cooking utensil comprises a water storage tank and a juice receiving disc, wherein a steam generating part is arranged in the water storage tank, a steam cover is arranged on the juice receiving disc, the juice receiving disc is erected on the water storage tank, the steam cover is matched with the steam generating part to form a steam generating cavity, the steam cover comprises an annular rib arranged on the lower bottom surface of the juice receiving disc, the steam generating part comprises an annular cavity wall, the annular cavity wall is matched with the annular rib to form at least two layers of diversion channels surrounding the steam generating cavity, the width of each diversion channel of the inner layer is smaller than that of each diversion channel of the outer layer, and water in the water storage tank flows into the steam generating cavity along the diversion channels.

Description

Steam cooking utensil

Technical Field

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

Background

With the popularization of healthy diet concept and the improvement of life quality, the cooking food material gradually becomes the main stream cooking mode in each family, and the electric steamer also gradually becomes an indispensable kitchen appliance in the family at present. The prior common electric steamer is mainly characterized in that a heating device is arranged at the bottom of a water storage area of a steamer body, water in the whole water storage area is heated by the heating device to form steam, and then the steam is used for steaming food materials in a steamer tray. The problem with this heating method is that the heating device needs to boil the water in the water storage area to a boiling state, and then a large amount of steam can be generated, so that the whole water is boiled for a long time, and the cooking experience is affected. The boiling time is also changed by the amount of water put in by the user, so that the time for steaming food cannot be precisely controlled.

Disclosure of Invention

In order to solve at least one of the above technical problems, an object of the present utility model is to provide a steam cooking appliance.

In order to achieve the above object, embodiments of the present utility model provide: the steam cooking utensil comprises a water storage tank and a juice receiving disc, wherein a steam generating part is arranged in the water storage tank, a steam cover is arranged on the juice receiving disc, the juice receiving disc is erected on the water storage tank, the steam cover is matched with the steam generating part to form a steam generating cavity, the steam cover comprises an annular rib arranged on the lower bottom surface of the juice receiving disc, the steam generating part comprises an annular cavity wall, the annular cavity wall is matched with the annular rib to form at least two layers of diversion channels surrounding the steam generating cavity, the width of each diversion channel of the inner layer is smaller than that of each diversion channel of the outer layer, and water in the water storage tank flows into the steam generating cavity along the diversion channels.

The lunch box provided by the utility model has the following additional technical characteristics:

in one exemplary embodiment, the annular cavity wall includes an inner cavity wall and an outer cavity wall, the annular rib is located between the inner cavity wall and the outer cavity wall, and the flow guide channel includes an outer channel separated from the annular rib by the outer cavity wall and an inner channel separated from the annular rib by the inner cavity wall.

In an exemplary embodiment, the annular cavity wall includes an inner cavity wall and an outer cavity wall, the annular rib is located outside the outer cavity wall, and the flow guide channel includes an outer channel separated from the annular rib by the outer cavity wall and an inner channel separated from the inner cavity wall by the outer cavity wall.

In an exemplary embodiment, the inner cavity wall and the outer cavity wall are both provided with water inlet grooves, and a water passing gap is arranged between the annular blocking rib and the bottom surface of the water storage tank.

In an exemplary embodiment, the inner cavity wall and the outer cavity wall are both provided with water inlet grooves, the annular blocking ribs are abutted with the bottom surface of the water storage tank, and the annular blocking ribs are provided with water passing grooves.

In an exemplary embodiment, the water inlet channel on the inner cavity wall and the water inlet channel on the outer cavity wall are arranged at intervals on both sides of the steam generating cavity.

In an exemplary embodiment, the water inlet groove on the inner cavity wall and the water inlet groove on the outer cavity wall are arranged on the same side of the steam generation cavity, and the water passing groove and the water inlet groove are arranged on two sides of the steam generation cavity at intervals.

In an exemplary embodiment, an annular groove is formed in the bottom of the water storage tank, and a sealing ring is arranged in the annular groove and is used for being abutted with the annular blocking rib.

In one exemplary embodiment, the spacing between the annular rib and the inner cavity wall is less than the spacing between the annular rib and the outer cavity wall.

In an exemplary embodiment, the steam generating part includes a heat generating member, which is a heat generating plate laid at the bottom of the steam generating chamber.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. according to the steam cooking device, steam required by the steam cooking device during operation is generated in the steam generation cavity and is conveyed outwards, and the steam cooking device can enable water in the steam generation cavity to be rapidly boiled under the condition that heating power is the same by heating only water in the steam generation cavity with volume far smaller than that of the water storage tank, so that steam is generated to heat food in the steam cooking device; meanwhile, the heating efficiency of the steam cooking appliance is improved, and the cooking time is further shortened.

In addition, the setting of annular chamber wall and annular fender muscle mutually supporting in this application, the water in the storage water tank needs inflow guide way earlier in the setting of guide way outside the steam generation chamber outside the at least two-layer water conservancy diversion passageway that encircles the steam generation chamber, just finally get into the steam generation intracavity after flowing out through guide way, the setting of guide way can avoid steam generation chamber and storage water tank direct communication to lead to steam generation chamber heat to scatter and disappear soon, the slow problem of steam generation rate, because steam generation chamber and storage water tank direct communication, because the heat convection effect when the water in the steam generation chamber is heated, the higher temperature water that has been heated in the steam generation chamber flows to the storage water tank, the lower temperature water that has not been heated in the storage water tank flows to the steam generation chamber, thereby the condition similar to in practice to the water in the storage water tank overall heating has been caused. In contrast, the diversion channel arranged between the steam generation cavity and the water storage tank can play a certain role in blocking the heat convection effect between the steam generation cavity and the water storage tank, and water must pass through the diversion channel of at least two layers when flowing between the steam generation cavity and the water storage tank, so that the dissipation of heat in the steam generation cavity is slowed down, and the efficiency of steam generation is ensured. Meanwhile, as the heat of the heated water in the steam cavity and the heat of the steam tend to have a part of heat exchange with the outside, the part of heat can play a role in preheating the water in the flow guide channel, the steam generating efficiency in the steam generating cavity is further optimized, and the width of the inner layer flow guide channel is smaller than that of the outer layer flow guide channel, so that the inner layer flow guide channel is relatively smaller, the preheated water amount is small, and the steam generating efficiency is further improved.

2. As a preferred embodiment of the present utility model, the annular cavity wall includes an inner cavity wall and an outer cavity wall, the annular rib is located between the inner cavity wall and the outer cavity wall, and the flow guiding channel includes an outer channel separated from the annular rib by the outer cavity wall and an inner channel separated from the annular rib by the inner cavity wall. The arrangement of the two layers of channels of the inner channel and the outer channel is beneficial to reducing heat exchange between the steam generation cavity and the water storage tank, reducing heat loss in the steam generation cavity and improving the efficiency of steam generation; meanwhile, water in the water storage tank sequentially flows through the outer channel and the inner channel and then enters the steam generation cavity, so that the flowing path of the water between the water storage tank and the steam generation cavity is greatly prolonged, a certain blocking effect is achieved on the heat convection effect, the steam cooking appliance can intensively heat the water in the steam generation cavity, and the steam generation rate is improved. The annular rib is arranged between the inner cavity wall and the outer cavity wall, so that the annular rib is closer to the middle of the steam generation cavity, the volume of the steam cover is reduced, the overflow and dissipation space of steam in the steam cover is further reduced, the loss of steam heat is further reduced, and the cooking effect of the steam cooking appliance is optimized.

Further, the inner cavity wall and the outer cavity wall are both provided with water inlet grooves, the annular blocking ribs are in butt joint with the bottom surface of the water storage tank, and the annular blocking ribs are provided with water passing grooves. The water inlet tank and the water passing tank are arranged to limit the flowing direction of water in the inner channel and the outer channel, and simultaneously the speed of water passing through the diversion channel is limited, so that the phenomenon that the water is excessively fast convected between the water storage tank and the steam generation cavity to influence the steam generation speed in the steam generation cavity is avoided, and the effect of optimizing the steam generation cavity to quickly generate steam is achieved.

3. As a preferred embodiment of the present utility model, the annular cavity wall includes an inner cavity wall and an outer cavity wall, the annular rib is located outside the outer cavity wall, and the flow guiding channel includes an outer channel separated by the outer cavity wall and the annular rib, and an inner channel separated by the outer cavity wall and the inner cavity wall. The setting of annular fender muscle in the outer chamber wall outside has increased annular fender muscle to the distance at steam generation chamber middle part, has increased the space that steam overflowed in the steam hood, and when heating power was great, the water boiling in the steam generation chamber was violent, and steam production and the speed that upwards flows are faster, and such setting can provide the sufficient buffer space of steam that upwards flows, avoids steam generation intracavity steam pressure too big, thereby drives some water blowout when outwards flowing through the steam hood and wets food material, influences the steaming taste of food material.

4. As a preferred implementation mode of the utility model, the inner cavity wall and the outer cavity wall are both provided with water inlet grooves, and a water passing gap is arranged between the annular blocking rib and the bottom surface of the water storage tank. The setting of water gap can make the water in the storage water tank flow to the steam generation chamber through annular fender muscle, when steam cooking utensil during operation, the water in the steam generation chamber is by continuous heating boiling production steam, along with the continuous process of steam production, the water in the storage water tank can flow through interior passageway and outer passageway through intake groove and water gap and get into the steam generation chamber, in order to supplement the steam that forms steam and reduce gradually in the steam generation chamber because of heating, annular fender muscle plays the effect of blockking to the water that has been heated by steam generation chamber flow direction storage water tank simultaneously, reduce the emergence of heat convection, optimize the efficiency that steam produced.

Further, the water inlet groove on the inner cavity wall and the water inlet groove on the outer cavity wall are arranged at two sides of the steam generation cavity at intervals. Through keeping away from the setting of intake groove on the outer chamber wall with the intake groove on the inner chamber wall, increased the water in the storage water tank and got into the inboard required route that flows of inner chamber wall from the outer chamber wall outside, prolonged the water conservancy diversion passageway, help preheating the water that flows from the water conservancy diversion passageway to steam generation chamber, the extension of water conservancy diversion passageway also makes the steam in the steam generation chamber be difficult for backward flow to the storage water tank simultaneously, and then hinder the production of heat convection effect, help steam generation chamber to produce steam fast, optimize user experience.

Additional features and advantages of embodiments of the utility model will be set forth in the description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

Fig. 1 is an exploded view of a steam cooking appliance according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a steam cooking appliance according to an embodiment of the present utility model;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2 in accordance with the present utility model;

fig. 4 is a schematic perspective view of the water storage tank and juice receiving tray of the present utility model.

Reference numerals:

1. a water storage tank; 2. a juice receiving tray; 3. a steam generation section; 30. an annular cavity wall; 301. a lumen wall; 302. an outer cavity wall; 303. a water inlet tank; 4. a steam hood; 40. annular blocking ribs; 401. a water passing tank; 5. a steam generation chamber; 6. a diversion channel; 61. an inner channel; 62. an outer channel; 7. a water passing gap; 8. a heat generating member; 80. a heating plate.

Detailed Description

Embodiments of the present utility model will be described herein with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.

First, the technical idea of the technical proposal disclosed by the utility model is explained. The part steamer among the prior art, through the whole heating of water in the pot of piece 8 that generates heat, steam to eating the material steaming after heating water to the boiling point wholly, such heating method problem lies in, the required time of this process of water overall heating to the boiling point is longer, all can't produce steam to evaporate before the water in the pot reaches the boiling point, simultaneously because the space that the pot body was used for holding water often is great, at the in-process of heating, the large space leads to the heat loss easily, influence heating efficiency, and then lead to whole cooking process can take longer time, unfavorable for user's use experience.

In order to solve the above problems, as shown in fig. 1 to 3, the present utility model provides a steam cooking appliance, which comprises a water storage tank 1 and a juice receiving tray 2, wherein a steam generating part 3 is arranged in the water storage tank 1, a steam cover 4 is arranged on the juice receiving tray 2, the juice receiving tray 2 is arranged on the water storage tank 1, the steam cover 4 and the steam generating part 3 are matched to form a steam generating cavity 5, and the steam cooking appliance is characterized in that the steam cover 4 comprises an annular rib 40 arranged on the lower bottom surface of the juice receiving tray 2, the steam generating part 3 comprises an annular cavity wall 30, the annular cavity wall 30 is matched with the annular rib 40 to form at least two layers of diversion channels 6 surrounding the steam generating cavity 5, the width of the inner layer of diversion channels 6 is smaller than the width of the outer layer of diversion channels 6, and water in the water storage tank 1 flows into the steam generating cavity 5 along the diversion channels 6.

In this application, when juice receiving dish 2 is in the state of setting up on storage water tank 1, the steam cover 4 cover that sets up on the juice receiving dish 2 is established in steam generation portion 3 top to form steam generation chamber 5 between steam cover 4 and steam generation portion 3, between steam generation chamber 5 and storage water tank 1, through the structural fit of annular fender muscle 40 of steam cover 4 below and the annular chamber wall 30 of steam generation portion 3, form at least two-layer water conservancy diversion passageway 6 that set up around steam generation chamber 5 between steam generation chamber 5 and storage water tank 1. When the steam cooking utensil works, water is injected into the water storage tank 1, then the juice receiving disc 2 is covered, water flows to the steam generating part 3, flows through the diversion channels 6 of each layer in sequence and then enters the steam generating cavity 5, the steam is heated and vaporized in the steam generating cavity 5 to generate steam, and the steam heats food materials after passing through the steam cover 4. The application sets up the steam generation chamber 5 that the space is less than storage water tank 1, only heats the water in the steam generation chamber 5, and the water in the steam generation chamber 5 is boiled earlier through the water that heats less under the same condition of heating power, has greatly shortened the time of steam production.

In addition, in the heating process of the steam cooking appliance, the heat dissipated is less than the heat dissipated in the whole heating process of the water in the water storage tank 1, so that the heating efficiency of the steam cooking appliance is improved, and the cooking time is shortened; and the heat emitted outwards by the steam generation cavity 5 can preheat water in the diversion channel 6, so that the steam generation rate is further optimized, and the use experience of a user is improved.

Some existing steamers also adopt a mode of arranging a steam generation cavity 5 in a water storage tank 1 and only heating water entering the steam generation cavity 5, however, because the steam generation cavity 5 is directly communicated with the water storage tank 1, water which is heated in the steam generation cavity 5 and has higher temperature flows to the water storage tank 1 due to the heat convection effect at the same time when the water in the steam generation cavity 5 is heated, and water which is not heated in the water storage tank 1 and has lower temperature flows to the steam generation cavity 5, so that the situation is similar to the situation of integrally heating the water in the water storage tank 1 in practice. In contrast, the heat convection effect between the steam generation cavity 5 and the water storage tank 1 can be prevented from being influenced to a certain extent by the flow guide channel 6 arranged between the steam generation cavity 5 and the water storage tank 1, and water must pass through at least two layers of the flow guide channels 6 when flowing between the steam generation cavity 5 and the water storage tank 1, so that heat dissipation in the steam generation cavity 5 is slowed down, and steam generation efficiency is guaranteed. Meanwhile, as the heat of the heated water in the steam cavity and the heat of the steam are subjected to heat exchange with the outside, the part of heat can play a role in preheating the water in the diversion channel 6, and further the effect of optimizing the steam generation efficiency in the steam generation cavity 5 is achieved.

Further, the steam generating part 3 comprises a heating element 8, and the heating element 8 is a heating plate 80 paved at the bottom of the steam generating cavity 5. The heating plate 80 paved at the bottom of the steam generation cavity 5 can increase the contact area between water and the heating plate 80, so that the water in the steam generation cavity 5 can be heated more quickly, and the steam generation rate is optimized.

The position of the steam generating cavity 5 in the water storage tank 1 is specifically limited, the number of the steam generating cavities 5 is not limited, and one or more steam generating cavities 5 can be provided. When the steam generating cavities 5 are multiple, at least two layers of diversion channels 6 are arranged on the outer side of each steam generating cavity 5 in a surrounding mode.

As a preferred embodiment of the present utility model, as shown in fig. 2 to 4, the annular chamber wall 30 includes an inner chamber wall 301 and an outer chamber wall 302, the annular rib 40 is located between the inner chamber wall 301 and the outer chamber wall 302, and the flow guide passage 6 includes an outer passage 62 where the outer chamber wall 302 is separated from the annular rib 40 and an inner passage 61 where the inner chamber wall 301 is separated from the annular rib 40. The steam cover 4 comprises an annular blocking rib 40 extending from the lower bottom surface of the juice receiving tray 2 to the bottom of the water storage tank 1, the annular blocking rib 40 is arranged between the inner cavity wall 301 and the outer cavity wall 302, so that the annular blocking rib 40 is closer to the middle of the steam generation cavity 5, the space in the corresponding steam cover 4 is also reduced, the overflow range of steam in the steam cover 4 is further reduced, and the loss of heat when the steam passes through the steam cover 4 is reduced. Meanwhile, the annular rib 40 is located between the inner cavity wall 301 and the outer cavity wall 302 to separate the inner channel 61 and the outer channel 62, at this time, the sum of the widths of the inner channel 61 and the outer channel 62 is the distance between the inner cavity wall 301 and the outer cavity wall 302, compared with the mode that the annular rib 40 is arranged outside the outer cavity wall 302, the widths of the inner channel 61 and the outer channel 62 are narrower, under the condition that the steam generation cavity 5 is communicated with the water storage tank 1, the flow of water between the steam generation cavity 5 and the water storage tank 1 in unit time is limited, and the phenomenon that heat exchange is frequent due to overlarge flow is avoided, and the efficiency of steam generation is affected is avoided.

Further, the inner cavity wall 301 and the outer cavity wall 302 are both provided with a water inlet groove 303, and a water passing gap 7 is arranged between the annular rib 40 and the bottom surface of the water storage tank 1. In the cooking process, the lower end of the annular rib 40 is positioned below the liquid level, water in the water storage tank 1 enters the inner channel 61 through the water gap 7 between the annular rib 40 and the bottom surface of the water storage tank 1 after entering the outer channel 62 through the water inlet groove 303 arranged on the outer cavity wall 302, then flows along the inner channel 61 to the water inlet groove 303 on the inner cavity wall 301, and enters the steam generation cavity 5 through the water inlet groove 303 on the inner cavity wall 301. According to the heat convection principle, hot water flows upwards and cold water flows downwards, the arrangement of the annular baffle ribs 40 can play a role in blocking the hot water flowing from the steam generation cavity 5 to the water storage tank 1, and meanwhile, the water passing gap 7 between one end of the annular baffle ribs 40 below the liquid level and the bottom of the water storage tank 1 can ensure that the cold water of the water storage tank 1 smoothly flows to the steam generation cavity 5.

Further, the water inlet grooves 303 on the inner chamber wall 301 and the water inlet grooves 303 on the outer chamber wall 302 are provided at intervals on both sides of the steam generating chamber 5. By arranging the water inlet groove 303 on the inner cavity wall 301 and the water inlet groove 303 on the outer cavity wall 302, the flowing distance of water flow between the steam generation cavity 5 and the water storage tank 1 through the inner channel 61 and the outer channel 62 is prolonged, so that water in the steam generation cavity 5 is less likely to flow back into the water storage tank 1, and the steam generation effect of the steam cooking appliance is ensured. Preferably, the water inlet grooves 303 on the inner cavity wall 301 and the water inlet grooves 303 on the outer cavity wall 302 are arranged at two sides of the steam generating cavity 5 at intervals and are positioned on the same straight line passing through the center of the steam generating cavity 5, at this time, the water flowing path from the water inlet grooves 303 on the inner cavity wall 301 to the water inlet grooves 303 on the outer cavity wall 302 is longest, and the effect of the diversion channel 6 on inhibiting the backflow of hot water in the steam generating cavity 5 is best. At the same time the elongated flow guiding channels 6 also contribute to preheating of the water flowing from the flow guiding channels 6 to the steam generating cavity 5.

Further, the interval between the annular rib 40 and the inner cavity wall 301 is smaller than the interval between the annular rib 40 and the outer cavity wall 302, the annular rib 40 is further arranged close to the middle of the steam generating cavity 5, the volume of the steam hood 4 is reduced, the range of steam overflowing in the steam hood 4 is smaller, further, the lost heat is reduced, the steam cooking appliance with smaller heating power has a good energy-saving effect, meanwhile, the arrangement enables the width D1 of the inner channel 61 to be smaller than the width D2 of the outer channel 62, the arrangement enables the inner channel 61 to be relatively smaller, the preheated water amount of the inner channel 61 is small, and the steam generating efficiency is further improved.

In another embodiment, the annular rib is positioned between the inner cavity wall and the outer cavity wall to separate an inner channel and an outer channel, the inner cavity wall and the outer cavity wall are both provided with water inlet grooves, the annular rib is abutted with the bottom surface of the water storage tank, and the annular rib is provided with water passing grooves. Water can only pass through annular fender muscle through the water tank of seting up on the annular fender muscle, compares in annular fender muscle and the mode that the storage water tank bottom surface was provided with the round water clearance, and resistance is bigger in this embodiment water when passing through the water conservancy diversion passageway, has further optimized the anti-return effect to steam generation intracavity water.

Further, the water inlet groove on the inner cavity wall and the water inlet groove on the outer cavity wall are arranged on the same side of the steam generation cavity, and the water passing groove and the water inlet groove are arranged on two sides of the steam generation cavity at intervals. The inner cavity wall is close to the water inlet groove on the outer cavity wall and is far away from the water passing groove, water in the water storage tank enters the outer channel through the water inlet groove on the outer cavity wall, flows to one end far away from the water inlet groove through the outer channel, then enters the inner channel through the water passing groove on the annular retaining rib, flows to one end far away from the water passing groove through the inner channel, and finally enters the steam generating cavity through the water inlet groove on the inner cavity wall. The distance that the water flow flows between the steam generating cavity and the water storage tank through the inner channel and the outer channel is prolonged, and the backflow preventing effect on the water in the steam generating cavity is optimized.

Further, the bottom of the water storage tank is provided with an annular groove, a sealing diagram is arranged in the annular groove, and the sealing ring is used for being abutted with the annular blocking rib. The sealing effect of the contact position of the annular blocking rib and the bottom surface of the water storage tank is optimized through the arrangement, and the influence on the backflow prevention effect caused by the fact that water passes through the annular blocking rib from a gap between the annular blocking rib and the water storage tank is avoided.

As another embodiment of the utility model, the annular rib is positioned outside the outer cavity wall, and the diversion channel comprises an outer channel separated by the outer cavity wall and the annular rib and an inner channel separated by the outer cavity wall and the inner cavity wall. The setting that annular keeps off the muscle in the outer chamber wall outside has increased annular and has kept off the muscle to the distance at steam generation chamber middle part, has enlarged the scope that steam overflowed in the steam hood, and when steam cooking utensil's heating power was great, steam generation intracavity water boiling was violent, and steam production and the velocity that upwards flows are faster, can provide the abundant buffer space of steam that upwards flows through the setting of this embodiment, avoid steam generation intracavity steam pressure too big, thereby drive a part of water blowout when outwards flowing through the steam hood and hit wet food material, influence the steaming taste of food material.

Further, the inner cavity wall and the outer cavity wall are both provided with water inlet grooves, the annular blocking ribs can be in a form of arranging water gaps with the bottom surface of the water storage tank, and can also be in a form of being abutted with the bottom surface of the water storage tank, and water inlet grooves are formed in the side walls of the annular blocking ribs.

Although the embodiments of the present utility model are described above, the above description is only for the convenience of understanding the present utility model, and is not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is defined by the appended claims.

Claims (7)

1. The steam cooking utensil comprises a water storage tank and a juice receiving disc, wherein a steam generating part is arranged in the water storage tank, a steam cover is arranged on the juice receiving disc, the juice receiving disc is erected on the water storage tank, the steam cover and the steam generating part are matched to form a steam generating cavity, and the steam cooking utensil is characterized in that the steam cover comprises an annular rib arranged on the lower bottom surface of the juice receiving disc, the steam generating part comprises an annular cavity wall, the annular cavity wall is matched with the annular rib to form at least two layers of diversion channels encircling the steam generating cavity, the width of the diversion channels of the inner layer is smaller than that of the diversion channels of the outer layer, water in the water storage tank flows into the steam generating cavity along the diversion channels, the annular cavity wall comprises an inner cavity wall and an outer cavity wall, water inlet grooves are formed in the inner cavity wall and the outer cavity wall, the annular rib is in butt joint with the bottom surface of the water storage tank, and water passing grooves are formed in the annular rib.

2. The steam cooking appliance of claim 1, wherein: the annular blocking rib is positioned between the inner cavity wall and the outer cavity wall, and the flow guide channel comprises an outer channel formed by separating the outer cavity wall from the annular blocking rib and an inner channel formed by separating the inner cavity wall from the annular blocking rib.

3. The steam cooking appliance of claim 1, wherein: the annular blocking rib is positioned on the outer side of the outer cavity wall, and the flow guide channel comprises an outer channel formed by separating the outer cavity wall from the annular blocking rib and an inner channel formed by separating the outer cavity wall from the inner cavity wall.

4. The steam cooking appliance of claim 2, wherein: the water inlet groove on the inner cavity wall and the water inlet groove on the outer cavity wall are arranged on the same side of the steam generation cavity, and the water passing groove and the water inlet groove are arranged on two sides of the steam generation cavity at intervals.

5. The steam cooking appliance of claim 2, wherein: the bottom of the water storage tank is provided with an annular groove, a sealing ring is arranged in the annular groove, and the sealing ring is used for being abutted with the annular blocking rib.

6. The steam cooking appliance of claim 2, wherein: the spacing between the annular blocking rib and the inner cavity wall is smaller than the spacing between the annular blocking rib and the outer cavity wall.

7. The steam cooking appliance of claim 1, wherein: the steam generating part comprises a heating piece, and the heating piece is a heating disc paved at the bottom of the steam generating cavity.