CN221153842U - Cooking utensil - Google Patents

Abstract

The present application relates to a cooking utensil, which comprises a housing and a shelf assembly, wherein the housing has a cooking cavity, and the shelf assembly is removably disposed in the cooking cavity; the shelf assembly comprises a shelf and a baking utensil, wherein the shelf is detachably connected to the housing, and the shelf is provided with at least two layers of shelf positions along its height direction, and the baking utensil can be selectively placed in each of the shelf positions. In the above-mentioned cooking utensil, the shelf is detachably connected to the housing, and the shelf is provided with at least two layers of shelf positions along its height direction, and different types of baking utensil can be placed in each layer of shelf positions, so as to place and cook different types of food at the same time, so that one cavity can be used for multiple purposes, thus realizing the versatility and convenience of assembly of the cooking utensil; the shelf is provided with at least two layers of shelf positions along its height direction, so as to avoid excessive accumulation of food at the bottom of the cooking cavity, thereby improving the space utilization rate of the cooking cavity and facilitating uniform heating of the food.

Description

Cooking utensils

Technical Field

The present application relates to the technical field of cooking equipment, and in particular to a cooking utensil.

Background technique

The electric oven is a relatively common food cooking appliance. The ovens on the market that have more functions are larger in size and take up more kitchen space. Small ovens such as air fryers have limited functions and cannot be used for cooking a variety of foods. They cannot take into account the versatility of electric ovens and the requirements of simple structural assembly, and the user experience is poor.

Utility Model Content

Based on this, it is necessary to provide a cooking utensil to address the problem that the existing electric ovens cannot have both multifunctionality and simple structure assembly.

A cooking appliance comprises a casing and a shelf assembly, wherein the casing has a cooking cavity, and the shelf assembly is removably arranged in the cooking cavity; the shelf assembly comprises a shelf and a baking utensil, wherein the shelf is detachably connected to the casing, and the shelf is provided with at least two layers of shelf positions along its height direction, and the baking utensil can be selectively placed in each of the shelf positions.

The above-mentioned cooking utensil has a shelf that is detachably connected to the casing, and the shelf is provided with at least two layers of shelves along its height direction, and different types of baking utensils can be placed on each layer of shelves to place and cook different types of food at the same time. One cavity can be used for multiple purposes, thus realizing the versatility and ease of assembly of the cooking utensil; the shelf is provided with at least two layers of shelves along its height direction, so as to avoid excessive accumulation of food at the bottom of the cooking cavity, improve the space utilization rate of the cooking cavity and facilitate uniform heating of the food.

In one of the embodiments, the shelf includes a connecting portion and at least two placing portions, the placing portions are arranged at intervals along the height direction of the shelf and are fixed by the connecting portion, and each placing portion is respectively provided with at least one layer of placing positions.

In one embodiment, each of the placing portions is a closed ring structure and has a hollow portion, and the baking utensils are placed on the placing portions and at least partially accommodated in the hollow portion.

In one of the embodiments, the outer periphery of the baking utensil is provided with a flange structure overlapping with the shelf portion.

In one embodiment, the number of the baking utensils is at least two and they are arranged corresponding to the shelf portions, and each of the baking utensils is at least one of a grill, a non-porous baking tray and a porous baking tray.

In one of the embodiments, a handle portion is protruding from the top of the connecting portion along the height direction, and a groove for accommodating the handle portion is provided on the top of the cooking cavity.

In one embodiment, the shelf further includes a protective cover, and the protective cover is sleeved outside the buckle portion.

In one embodiment, the connecting portion includes a first connecting frame and two second connecting frames, the two second connecting frames are respectively arranged on opposite sides of the first connecting frame, the first connecting frame is connected to the bottom side of the shelf portion located at the bottom layer, and the two second connecting frames are connected to opposite sides of each of the shelf portions, and each of the second connecting frames is provided with at least one buckle portion.

In one embodiment, the handle portion, the connecting portion and each of the placing portions are an integrally formed structure.

In one of the embodiments, the casing is further provided with an air guide cavity connected to the cooking cavity, and the cooking appliance further includes an air guide component, which is accommodated in the casing and located on one side of the cooking cavity; when the air guide component is in operation, circulating air is formed between the air guide cavity and the cooking cavity.

In one embodiment, the cooking utensil further includes an inner pot, which is accommodated in the casing and is provided with the cooking cavity, the inner pot is provided with an air inlet and an air outlet, and the air guide cavity and the cooking cavity are connected through the air inlet and the air outlet.

In one embodiment, the number of the air inlet holes and the air outlet holes are at least two and are located on the same side wall of the inner liner, all the air inlet holes are located in the middle of the side wall of the inner liner, and all the air outlet holes are arranged around the periphery of all the air inlet holes.

In one embodiment, the air guide assembly includes a heating tube, a fan blade, a driving member and an air guide cover, the air guide cover is arranged at the air outlet end of the fan blade and in the air guide cavity, and the driving member is connected to the fan blade; when the air guide assembly is running, the heating tube generates heat, the driving member drives the fan blade to rotate, and under the action of the air guide cover, the hot air is guided into the cooking cavity.

In one of the embodiments, the cooking appliance further comprises a cover, which is rotatably connected to the casing to cover the cooking cavity, and a transparent observation window is provided in the middle of the cover.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a cooking appliance in an embodiment when a cover is closed.

FIG. 2 is a schematic diagram of the interior of the cooking appliance shown in FIG. 1 .

FIG. 3 is a first cross-sectional view of the cooking appliance shown in FIG. 1 .

FIG. 4 is a second cross-sectional view of the cooking appliance shown in FIG. 1 .

FIG. 5 is a schematic diagram of the assembly of the shelf assembly in the cooking appliance shown in FIG. 1 .

FIG. 6 is an exploded view of the shelf assembly shown in FIG. 5 .

FIG. 7 is a schematic diagram of the assembly of a shelf assembly in another embodiment.

FIG. 8 is a schematic diagram of the assembly of a shelf assembly in yet another embodiment.

FIG. 9 is a schematic diagram of the assembly of a shelf assembly in yet another embodiment.

Reference numerals:

100, casing; 101, cooking cavity; 102, air guide cavity; 103, groove; 200, shelf assembly; 210, shelf; 210a, shelf position; 211, connecting portion; 211a, first connecting frame; 211b, second connecting frame; 212, shelf portion; 212a, hollow portion; 213, handle portion; 214, protective cover; 220, baking utensils; 220a, flange structure; 221, grill; 222, non-porous baking tray; 223, porous baking tray; 300, air guide assembly; 310, heating tube; 320, fan blade; 330, driving member; 340, air guide cover; 400, liner; 410, air inlet; 420, air outlet; 500, machine cover; 501, transparent observation window.

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "initial", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Please refer to Figures 1 to 4, a cooking device in an embodiment includes a housing 100 and a shelf assembly 200, the housing 100 has a cooking cavity 101, and the shelf assembly 200 is removably disposed in the cooking cavity 101. In particular, in conjunction with Figure 5, the shelf assembly 200 includes a shelf 210 and a grill 220, the shelf 210 is detachably connected to the housing 100, and the shelf 210 is provided with at least two layers of shelf positions 210a along its height direction, and the grill 220 can be selectively placed in each shelf position 210a.

It should be noted that the height direction of the shelf 210 is the Z direction shown in Fig. 5. The shelf 210 is provided with at least two layers of shelf positions 210a along its height direction, and each layer of shelf position 210a can be placed with a baking utensil 220, on which food to be cooked can be placed.

In the above-mentioned cooking utensil, the shelf 210 is detachably connected to the casing 100, and the shelf 210 is provided with at least two layers of shelf positions 210a along its height direction, and each layer of shelf position 210a can be used to place different types of baking utensils 220, so as to place and cook different kinds of food at the same time, and one cavity can be used for multiple purposes, thereby realizing the versatility and assembly convenience of the cooking utensil; the shelf 210 is provided with at least two layers of shelf positions 210a along its height direction, so as to avoid excessive accumulation of food at the bottom of the cooking cavity 101, thereby improving the space utilization rate of the cooking cavity 101 and facilitating uniform heating of the food.

In this embodiment, the cooking cavity 101 is a rectangular cylindrical cavity with one end open, and accordingly, the shelf 210 is also a rectangular cylindrical cavity to match the cooking cavity 101. In other embodiments, the cooking cavity 101 can also be a cylindrical cavity with one end open, and accordingly, the shelf 210 can be a circular cylindrical cavity.

In the present embodiment, the cooking device is an electric oven. In other embodiments, the cooking device can also be an air fryer, a steam oven or other types of household appliances.

Specifically, please refer to Figures 5 and 6. The shelf 210 includes a connecting portion 211 and at least two shelf portions 212. The shelf portions 212 are arranged at intervals along the height direction of the shelf 210 and fixed by the connecting portion 211. Each shelf portion 212 is respectively provided with at least one layer of shelf positions 210a.

It is understandable that each shelf portion 212 of the shelf 210 is fixed by the connecting portion 211 , and a spacing is provided between every two adjacent shelf portions 212 along the height direction of the shelf 210 , so as to reserve enough space for placing the baking utensils 220 .

For example, as shown in Figures 5 and 6, the shelf 210 has four shelf portions 212, and the four shelf portions 212 are arranged at intervals along the height direction of the shelf 210. The four shelf portions 212 are respectively provided with a layer of shelf positions 210a. A baking utensil 220 can be placed on each shelf portion 212, and food can be placed on each baking utensil 220 to avoid food accumulation at the bottom of the cooking cavity 101.

In this embodiment, the sizes and shapes of all the shelf portions 212 are completely the same. In other embodiments, the sizes and shapes of all the shelf portions 212 can also be different, as long as they can be adapted to the cooking cavity 101.

Further, please refer to FIG. 5 and FIG. 6 , each of the placement portions 212 is a closed ring structure and has a hollow portion 212 a , and the baking utensils 220 are placed on the placement portions 212 and at least partially accommodated in the hollow portion 212 a .

It should be noted that the baking utensils 220 are placed on the shelf portion 212 and at least partially accommodated in the hollow portion 212a, which can not only facilitate the adaptation of each layer of the shelf portion 212 to different types of baking utensils 220, but also enable air circulation in each layer of the shelf portion 212, so that the food on different baking utensils 220 can be heated evenly during cooking.

In this embodiment, each shelf 212 is a closed rectangular ring structure, and the baking utensil 220 is also a rectangular structure to match the shelf 212. In other embodiments, each shelf 212 can also be a closed circular ring structure or other shapes, and the baking utensil 220 can also be a circular structure or other shapes.

Furthermore, referring to FIG. 5 and FIG. 6 , the outer periphery of the baking utensil 220 is provided with a flange structure 220 a overlapping with the shelf portion 212 .

Specifically, the baking utensil 220 includes a main body and a flange structure 220a disposed around the outer periphery of the main body. When the baking utensil 220 is placed at the placement position 210a, the flange structure 220a is placed on the placement portion 212 and the main body is accommodated in the hollow portion 212a.

In this embodiment, the cross section of the flange structure 220a may be U-shaped, L-shaped, C-shaped or other shapes, and the flange structure 220a may be hollow or solid. Here, the shape and structure of the flange structure 220a are not specifically limited.

In this embodiment, the flange structure 220a and the main body are an integrated structure. For example, the flange structure 220a can be integrally formed on the outer periphery of the main body by injection molding or casting, and the integral molding method of the flange structure 220a is not limited here.

Please refer to FIG. 5 and FIG. 6 . There are at least two baking utensils 220 and they are disposed corresponding to the shelf portions 212 . Each baking utensils 220 is at least one of a grill 221 , a non-porous baking tray 222 , and a porous baking tray 223 .

It should be noted that by placing different types of baking utensils 220 on each shelf position 210a, different types of food can be placed and cooked at the same time, thereby achieving the multifunctionality of the cooking utensils.

For example, as shown in FIG7 , the grill 221 and the porous baking tray 223 are placed in the upper shelf 210a, with food 1 placed on the grill 221 and food 2 placed on the porous baking tray 223. Food 1 and food 2 may be chicken wings, cakes, fish, etc. The non-porous baking tray 222 is placed in the bottom shelf 210a, and may be used to collect dripping grease or fallen residues, or may be used as a frying pan to cook steaks, thereby enabling the cooking utensil to have the functions of a general oven.

For another example, as shown in FIG8 , the grill 221 and the porous baking tray 223 are placed in the upper shelf 210a, and four slices of bread are inserted into the grid of the grill 221 at intervals. The porous baking tray 223 serves as a tray to support the bottom of the four slices of bread so that the slices of bread are heated evenly. The non-porous baking tray 222 is placed in the bottom shelf 210a and can be used to receive dripping grease or fallen residues, and can also be used as a frying pan to fry eggs or ham slices, thereby enabling the cooker to function as a breakfast machine.

For another example, as shown in FIG9 , the grill 221 is placed in the uppermost shelf position 210a, and a plurality of skewers are evenly hung on the grill 221, so that the skewers are evenly heated and the cooking effect is good; the non-porous baking tray 222 is placed in the lowermost shelf position 210a, and can be used to receive dripping grease or fallen residues, and can also be used as an oil tray, so that the cooker has the function of a barbecue stove.

Please refer to FIG. 6 and FIG. 2 . A handle portion 213 is protruded from the top of the connecting portion 211 along its height direction. A groove 103 for accommodating the handle portion 213 is provided at the top of the cooking cavity 101 .

It can be understood that, through the cooperation of the buckle portion 213 and the groove 103, when the shelf 210 is placed in the cooking cavity 101, the shelf 210 can be easily positioned. At the same time, the buckle portion 213 can be held to take the shelf 210, avoiding holding other parts of the shelf 210, which can make the shelf 210 more convenient and cleaner to take.

In this embodiment, the buckle portion 213 is a hollow rectangle, and accordingly, the groove 103 is also a square groove. In other embodiments, the buckle portion 213 can also be a hollow circle, a solid rectangle or other shapes, and accordingly, the groove 103 can also be a circular groove or other shapes. Here, the shapes of the buckle portion 213 and the groove 103 are not specifically limited.

In this embodiment, the number of the latching portions 213 is not limited to one, that is, at least two latching portions 213 may be protruding from the connecting portion 211, and all the latching portions 213 may be arranged at intervals along the circumference of the connecting portion 211 or in other arrangements.

Specifically, please refer to FIG. 6 , the shelf 210 further includes a protective cover 214 , and the protective cover 214 is sleeved outside the buckle portion 213 .

Here, by arranging a protective cover 214 on the buckle handle 213, it is more convenient to hold the buckle handle 213, and at the same time effectively protect the buckle handle 213. Preferably, the protective cover 214 can be made of high temperature resistant material, such as a silicone cover or other types of protective covers, to further prevent the buckle handle 213 from being burned by high temperature when held.

More specifically, please refer to Figure 6. The connecting portion 211 includes a first connecting frame 211a and two second connecting frames 211b. The two second connecting frames 211b are respectively arranged on opposite sides of the first connecting frame 211a. The first connecting frame 211a is connected to the bottom side of the bottom shelf 212, and the two second connecting frames 211b are connected to opposite sides of each shelf 212. Each second connecting frame 211b is provided with at least one buckle portion 213.

Here, as shown in Figure 1, the first connecting frame 211a of the connecting portion 211 supports the shelf portion 212 located at the bottom layer at the bottom, and the second connecting frame 211b of the connecting portion 211 fixes each layer of the shelf portion 212 on opposite sides of the shelf 210, so that each layer of the shelf portion 212 is firmly fixed through the connecting portion 211.

In this embodiment, the first connecting frame 211a and the second connecting frame 211b are vertically connected, and the first connecting frame 211a and the second connecting frame 211b are integrally formed structures, and the first connecting frame 211a and the second connecting frame 211b are both hollow structures to facilitate the placement of the grill 220. In other embodiments, the first connecting frame 211a and the second connecting frame 211b can also be arranged at other non-vertical angles.

In the present embodiment, the size and shape of each buckle portion 213 on all the second connecting frames 211b are the same, so as to facilitate batch processing and production. In other embodiments, the size and shape of each buckle portion 213 on all the second connecting frames 211b can also be different.

Specifically in this embodiment, please refer to FIG. 6 , the handle portion 213 , the connecting portion 211 and each of the placing portions 212 are an integrally formed structure.

For example, the handle 213, the connection part 211 and the shelves 212 can be integrally formed on the outer periphery of the main body by injection molding or casting, and the integral forming method of the handle 213, the connection part 211 and the shelves 212 is not limited. Through the above arrangement, the shelf 210 can have good integrity and high mechanical strength, which facilitates the rapid disassembly and assembly of the shelf 210.

Please refer to Figures 3 and 4. The casing 100 is also provided with an air guide cavity 102 connected to the cooking cavity 101. The cooking appliance also includes an air guide component 300. The air guide component 300 is accommodated in the casing 100 and is located on one side of the cooking cavity 101. When the air guide component 300 is running, circulating air is formed between the air guide cavity 102 and the cooking cavity 101.

Specifically, please refer to Figures 3 and 4. The cooking appliance also includes an inner pot 400, which is accommodated in the casing 100 and is provided with a cooking cavity 101. The inner pot 400 is provided with an air inlet hole 410 and an air outlet hole 420. The air guide cavity 102 and the cooking cavity 101 are connected through the air inlet hole 410 and the air outlet hole 420.

It should be noted that the air guide assembly 300 is located on one side of the inner pot 400 in the horizontal direction, and the air guide cavity 102 of the air guide assembly 300 and the cooking cavity 101 of the inner pot 400 are connected through the air inlet 410 and the air outlet 420. When the air guide assembly 300 is in operation, hot air circulates between the air guide cavity 102 and the cooking cavity 101, thereby heating the food in the cooking cavity 101 and quickly dehydrating and drying the food.

In this embodiment, the air inlet hole 410 and the air outlet hole 420 are both round holes. In other embodiments, the air inlet hole 410 and the air outlet hole 420 can also be square holes or other shapes.

Specifically in this embodiment, please refer to Figures 3 and 4. The number of air inlet holes 410 and air outlet holes 420 is at least two and are located on the same side wall of the inner liner 400. All air inlet holes 410 are located in the middle of the side wall of the inner liner 400, and all air outlet holes 420 are arranged around the periphery of all air inlet holes 410.

Here, the airflow in the cooking cavity 101 can flow into the air guide cavity 102 from the air inlet hole 410, and the airflow in the air guide cavity 102 can flow into the cooking cavity 101 from the air outlet hole 420. By making all the air inlet holes 410 arranged in the middle of the side wall of the inner pot 400, and all the air outlet holes 420 arranged around the periphery of all the air inlet holes 410, that is, the airflow in the cooking cavity 101 flows into the air guide cavity 102 from the middle of the inner pot 400, and the airflow in the air guide cavity 102 flows into the cooking cavity 101 from the periphery of the inner pot 400, the hot air forms a circulation between the air guide cavity 102 and the cooking cavity 101, and the food can be heated efficiently at the same time.

In this embodiment, a plurality of air inlet holes 410 are evenly arranged in the middle of the side wall of the inner liner 400, and all air outlet holes 420 are evenly arranged on the periphery of all air inlet holes 410. The air inlet holes 410 and the air outlet holes 420 can be arranged in a circular array, a rectangular array or other arrangements.

Please refer to Figures 3 and 4. The air guide component 300 includes a heating tube 310, a fan blade 320, a driving member 330 and an air guide cover 340. The air guide cover 340 is arranged at the air outlet end of the fan blade 320 and is arranged in the air guide cavity 102. The driving member 330 is connected to the fan blade 320. When the air guide component 300 is running, the heating tube 310 generates heat, the driving member 330 drives the fan blade 320 to rotate, and under the action of the air guide cover 340, the hot air is guided into the cooking cavity 101.

Specifically, when the air guide assembly 300 is running, the heating tube 310 can generate heat to heat the air in the air guide cavity 102, and the driving member 330 drives the fan blades 320 to rotate, so that the high-temperature air in the air guide cavity 102 forms an airflow under the action of centrifugal force and flows into the cooking cavity 101 through the air outlet 420. At the same time, the hot air in the cooking cavity 101 can be sucked into the air guide cavity 102 through the air inlet 410, so that circulating air is formed between the air guide cavity 102 and the cooking cavity 101, thereby heating the food in the cooking cavity 101.

In this embodiment, the driving member 330 is a motor, and the output shaft of the motor is connected to the fan blade 320. In other embodiments, the driving member 330 can also be other driving structures with a power shaft.

Please refer to FIG. 3 and FIG. 2 , the cooking appliance further includes a cover 500 , which is rotatably connected to the housing 100 to cover the cooking cavity 101 , and a transparent observation window 501 is provided in the middle of the cover 500 .

It is understandable that by providing the cover 500, the cooking cavity 101 can be kept in a closed state when cooking food, and at the same time, the cooking state of the food can be easily observed through the transparent observation window 501 in the middle of the cover 500.

In this embodiment, the edge of the cover 500 is provided with a first pivoting portion, the edge of the housing 100 is provided with a second pivoting portion, the first pivoting portion is provided with a first pivoting hole, the second pivoting portion is provided with a second pivoting hole, and the rotating shaft is provided with the second pivoting hole and the first pivoting hole, so that the cover 500 is rotatably connected to the housing 100. In other embodiments, the cover 500 and the housing 100 may also be rotatably connected via a hinge or other connecting member.

In this embodiment, the first pivoting portion and the cover 500 are an integrally formed structure, and the second pivoting portion and the housing 100 are an integrally formed structure, which has better integrity and mechanical strength.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims (14)

1. A cooking utensil, comprising: A housing (100) having a cooking cavity (101); A shelf assembly (200) is removably disposed in the cooking cavity (101); the shelf assembly (200) comprises a shelf (210) and a baking utensil (220); the shelf (210) is detachably connected to the housing (100), and the shelf (210) is provided with at least two layers of shelf positions (210a) along its height direction; the baking utensil (220) can be selectively placed in each of the shelf positions (210a). 2. The cooking utensil according to claim 1 is characterized in that the shelf (210) comprises a connecting portion (211) and at least two placing portions (212), each of the placing portions (212) is arranged at intervals along the height direction of the shelf (210) and is fixed by the connecting portion (211), and each of the placing portions (212) is respectively provided with at least one layer of the placing positions (210a). 3. The cooking utensil according to claim 2 is characterized in that each of the placing portions (212) is a closed ring structure and has a hollow portion (212a), and the baking utensil (220) is placed on the placing portion (212) and is at least partially accommodated in the hollow portion (212a). 4. The cooking utensil according to claim 3, characterized in that the outer periphery of the baking utensil (220) is provided with a flange structure (220a) overlapping with the placing portion (212). 5. The cooking utensil according to claim 2 is characterized in that the number of the baking utensils (220) is at least two and they are arranged corresponding to the shelf portion (212), and each of the baking utensils (220) is at least one of a grill (221), a non-porous baking tray (222) and a porous baking tray (223). 6. The cooking utensil according to claim 2 is characterized in that a handle portion (213) is protruding from the top of the connecting portion (211) along its height direction, and a groove (103) for accommodating the handle portion (213) is provided at the top of the cooking cavity (101). 7. The cooking utensil according to claim 6, characterized in that the shelf (210) further comprises a protective cover (214), and the protective cover (214) is sleeved outside the buckle portion (213). 8. The cooking utensil according to claim 6 is characterized in that the connecting portion (211) comprises a first connecting frame (211a) and two second connecting frames (211b), the two second connecting frames (211b) are respectively arranged on opposite sides of the first connecting frame (211a), the first connecting frame (211a) is connected to the bottom side of the shelf portion (212) located at the bottom layer, and the two second connecting frames (211b) are connected to opposite sides of each shelf portion (212), and each of the second connecting frames (211b) is provided with at least one buckle portion (213). 9. The cooking utensil according to claim 6, characterized in that the handle portion (213), the connecting portion (211) and each of the placing portions (212) are an integrally formed structure. 10. The cooking appliance according to claim 1, characterized in that an air guide cavity (102) communicating with the cooking cavity (101) is further provided in the housing (100), and the cooking appliance further comprises an air guide component (300), wherein the air guide component (300) is accommodated in the housing (100) and is located at one side of the cooking cavity (101); When the air guide component (300) is in operation, circulating air is formed between the air guide cavity (102) and the cooking cavity (101). 11. The cooking utensil according to claim 10 is characterized in that the cooking utensil further comprises an inner pot (400), the inner pot (400) is accommodated in the casing (100) and is provided with the cooking cavity (101), the inner pot (400) is provided with an air inlet hole (410) and an air outlet hole (420), and the air guide cavity (102) and the cooking cavity (101) are connected via the air inlet hole (410) and the air outlet hole (420). 12. The cooking utensil according to claim 11 is characterized in that the number of the air inlet holes (410) and the air outlet holes (420) are at least two and are located on the same side wall of the inner pot (400), all the air inlet holes (410) are located in the middle of the side wall of the inner pot (400), and all the air outlet holes (420) are located around the periphery of all the air inlet holes (410). 13. The cooking appliance according to claim 10, characterized in that the air guide assembly (300) comprises a heating pipe (310), a fan blade (320), a driving member (330) and an air guide cover (340), wherein the air guide cover (340) is arranged at the air outlet end of the fan blade (320) and is arranged in the air guide cavity (102), and the driving member (330) is connected to the fan blade (320); When the air guide assembly (300) is in operation, the heating tube (310) generates heat, the driving member (330) drives the fan blade (320) to rotate, and under the action of the air guide cover (340), the hot air is guided into the cooking cavity (101). 14. The cooking utensil according to claim 1 is characterized in that the cooking utensil further comprises a cover (500), the cover (500) is rotatably connected to the casing (100) to cover the cooking cavity (101), and a transparent observation window (501) is provided in the middle of the cover (500).