CN111317357B - A multifunctional cooking utensil - Google Patents

Abstract

The present invention relates to the technical field of kitchen utensils, and discloses a multifunctional cooking utensil, comprising a base assembly and a flip cover assembly (2) arranged above the base assembly (1), one end of the flip cover assembly (2) being hinged to the base assembly (1) and capable of flipping over on the base assembly (1), the flip cover assembly (2) comprising an upper cover bottom plate (7), a pot cover (8), a heating assembly (9), and an air duct (10), the pot cover (8) being arranged at the middle of the upper cover bottom plate (7), the air duct (10) being arranged at one side of the pot cover (8), a side wall hole (11) being arranged on the side wall of one side of the pot cover (8), and a propulsion motor (15) being adapted to the heating assembly (9) being arranged on the upper cover bottom plate (7). The present invention realizes the function conversion of a pressure cooker and an air fryer through an internal device, and realizes a cooking method of first pressure cooking and then baking food, or first baking and then pressure cooking, without the need for manual operations such as opening and replacing the cover.

Description

A multifunctional cooking utensil

Technical Field

The invention relates to the technical field of kitchen appliances, and in particular to a multifunctional cooking utensil.

Background Art

People often use pressure cookers and air fryers to cook various foods in daily life. Pressure cookers are very suitable for processing various ingredients that are difficult to cook because of their high internal pressure, and they can also speed up the cooking process; air fryers use heat sources such as heat radiation or hot air to cook food, making the food taste better or less grease, etc.

Pressure cookers can process food quickly, making the food soft and mushy, but cannot satisfy the pursuit of more taste; air fryers take a relatively long time to cook food, and the ingredients they process are relatively simple. For ingredients that are difficult to cook thoroughly, they cannot make the food completely cooked inside. For example, a Chinese utility model patent (application number: CN201821900335.9) discloses a dual-purpose pot combined with an air fryer and a pressure cooker, including a pot body, an inner pot is arranged in the pot body, and a pressure cooker lid or an air fryer lid is covered on the pot body. The air fryer lid is hinged on the pot body, and a power-on and power-off detection device is provided on the pot body to power on the air fryer lid when the air fryer lid is closed on the pot body or to power off the air fryer lid when the air fryer lid is opened. The air fryer can be used as an air fryer or a pressure cooker, realizing the dual-purpose functions of an air fryer and a pressure cooker. The above patent relies on manual labor to realize the conversion between the pressure cooker lid and the air fryer lid. The lid needs to be replaced manually during operation, and the personnel need to observe the usage at any time, which is cumbersome. The intelligent control of different ingredients cannot be realized. At the same time, due to the extra lid, the storage of the product is inconvenient.

Summary of the invention

The present invention aims to solve the shortcomings of the prior art that the pressure cooker lid and the air fryer lid need to be switched manually, and the lid needs to be manually switched during the operation; the personnel need to observe the usage at any time, which is cumbersome; the intelligent control of different ingredients cannot be achieved; and the storage of the product is inconvenient due to the extra lid. The present invention provides a multifunctional cooking utensil that does not need to be manually switched between the pressure cooker lid and the air fryer lid, and the lid does not need to be manually switched during the operation; the personnel do not need to observe the usage at any time, which is convenient; the intelligent control of different ingredients can be achieved; and the storage of the product is convenient because the lid is integrated on one lid.

In order to solve the above technical problems, the present invention is solved by the following technical solutions:

A multifunctional cooking utensil comprises a base assembly and a flip cover assembly arranged above the base assembly, one end of the flip cover assembly is hinged with the base assembly and can be flipped on the base assembly, the flip cover assembly comprises an upper cover bottom plate, a pot cover, a heating assembly, and an air duct duct, the pot cover is arranged in the middle of the upper cover bottom plate, the air duct duct is arranged on one side of the pot cover, a side wall hole is opened on the side wall of one side of the pot cover, the air duct duct is communicated with the inside of the pot cover, a propulsion motor adapted to the heating assembly is arranged on the upper cover bottom plate, and the propulsion motor drives the heating assembly to move in the air duct duct and the pot cover. The propulsion motor drives the heating assembly to move in the pot cover and the air duct duct, when using a pressure cooker, the propulsion motor drives the heating assembly to move into the air duct duct, so that the pot cover and the base assembly form a closed space, when using an air fryer, the propulsion motor drives the heating assembly to move into the pot cover, the inside of the pot cover and the air duct duct are communicated, so as to form air circulation, thereby realizing the switching between the pressure cooker function and the air fryer function, without the need to manually open the lid or change the pot, thereby improving the convenience of using the technology.

Preferably, the heating component includes a front air duct matched with the side wall hole and a heating tube installed in the front air duct, a stroke tooth is provided on one side of the upper end surface of the front air duct, a driving gear matched with the stroke tooth is sleeved on the motor shaft end of the propulsion motor, a ventilation hole is opened on the bottom plate of the front air duct, and the heating tube is arranged above the ventilation hole. When the air fryer function is used, the heating tube in the front air duct is heated to heat the circulating air to achieve air heating of the food, the propulsion motor drives the driving gear to rotate, and the driving gear drives the movement of the front air duct by meshing with the stroke tooth, which simplifies the driving method of the front air duct, thereby simplifying the method of switching between the pressure cooker function and the air fryer function.

Preferably, a sealing plate connected to the side wall of the front air duct is provided in the pot cover, the sealing plate moves in the pot cover and matches with the side wall hole, positioning buckles are provided at the upper and lower ends of the sealing plate, and a positioning buckle hole matching with the positioning buckle is provided on the side wall of the pot cover close to the air duct. The sealing plate is fixedly connected to the side wall of the front air duct and moves in the pot cover along with the front air duct. When the pressure cooker function is used, the side wall hole is sealed by the sealing plate, and the positioning buckle and the positioning buckle hole are matched for positioning, thereby improving the stability of the sealing plate and ensuring the sealing of the side.

Preferably, a pot cover base connected to the pot cover is provided at the lower end of the pot cover, an upper cover bottom plate is provided above the pot cover base, a leather ring top rod is provided between the pot cover base and the upper cover bottom plate, the leather ring top rod is provided on a side close to the air duct duct, the leather ring top rod comprises a laterally arranged moving rod, a trigger block provided above one end of the moving rod and connected to the moving rod, a mounting block provided below the other end of the moving rod and connected to the moving rod, a travel hole matched with the trigger block is provided on the upper cover bottom plate, the trigger block moves in the travel hole, a top block extending from the mounting block toward the trigger block is provided on the mounting block, a through hole matched with the top block is provided on the side wall of the pot cover base, and a leather ring is provided in the pot cover base. In the process of the front air duct moving to the inside of the pot cover, the side wall of the ventilation hole at the bottom of the front air duct presses against the trigger block to push the leather ring top rod to move toward the pot cover. Driven by the top block and the leather ring top rod, the top block moves toward the pot cover and pushes the leather ring open, so that a gap is formed between the pot cover base and the leather ring, which facilitates the circulation of hot air and thus facilitates the circulation heating of food.

Preferably, the base assembly includes an outer shell and an inner shell arranged in the outer shell, an outer shell cover plate which is an integral structure with the inner shell is arranged above the inner shell, an air blowing assembly is arranged in the outer shell, the air blowing assembly is arranged below the air duct, an air duct hole communicating with the air blowing assembly is arranged on the upper cover bottom plate and the outer shell cover plate respectively, an air duct extending downward is arranged on the lower end surface of the air duct, the air duct is communicated with the inside of the air duct, the air duct is arranged in the air duct hole and arranged above the air blowing assembly, and an air duct cover plate which can be turned up and down is arranged in the air duct hole of the outer shell cover plate. The air blowing assembly is used to blow air, so that the hot air forms a cycle along the air duct, the air duct, the inside of the inner shell and the front air duct, and the circulation of the hot air is accelerated, thereby realizing air heating of the food, and the air duct of the air duct is arranged in the air duct hole to ensure sufficient circulation of the hot air and avoid leakage.

Preferably, the blast assembly includes a blast slot, a blast blade arranged in the blast slot, and a blast motor connected to the blast blade, the blast motor drives the blast blade to rotate, a ventilation net is arranged on the side wall of the inner shell, the ventilation net is arranged on one side of the blast slot and communicates with the inside of the blast slot. The ventilation net makes the blast slot communicate with the inside of the inner shell, so as to form a circulation flow channel for hot air, and the blast blade is arranged in the blast slot, and the blast blade is driven by the blast motor to facilitate the rapid flow of hot air in the blast slot.

Preferably, a shell base connected to the shell is provided below the shell, the shell and the inner shell are both hollow cylindrical structures connected from top to bottom, a heating plate base and a heating plate arranged in the heating plate base are provided at the bottom of the shell, and the heating plate base is connected to the lower end of the inner shell. The heating plate is used to heat the pot body, which is convenient for the technology to be switched to the pressure cooker function. The shell base and the heating plate base are provided to facilitate the disassembly and assembly of the technology, thereby facilitating maintenance and repair.

Preferably, the outer shell cover is provided with a rotating shaft assembly mounted on the outer shell cover, the rotating shaft assembly is arranged on the side of the air duct hole away from the inner shell, the upper cover bottom plate is provided with a connecting portion adapted to the rotating shaft assembly, and the upper cover bottom plate is flipped up and down on the outer shell cover. By providing the rotating shaft assembly, the flip cover assembly can be rotated on the base assembly, which facilitates the opening and closing of the flip cover assembly.

Preferably, the housing is provided with a control panel installed on the outer wall of the housing, and the heating component, the air blast component, and the heating plate are all connected to the control panel. When the pressure cooker function is used, the heating component and the air blast component are controlled to be turned off through the control panel, and the heating plate is controlled to be turned on at the same time; when the air fryer function is used, the heating plate is controlled to be turned off through the control panel, and the heating component and the air blast component are controlled to be turned on at the same time. When switching functions, the heating component, the air blast component, and the heating plate are controlled to be turned on and off through the control panel accordingly, which facilitates the switching of the functions of the present technology.

Preferably, a pot body is provided in the inner shell, the pot body is provided above the heating plate, and also includes two symmetrically arranged arc clamps and a knob assembly connected to the arc clamps, the arc clamps are provided below the bottom plate of the upper cover, the pot cover base and the upper end of the pot body are both provided in the arc clamps, the knob assembly includes a knob and a rotating member provided in the knob, the knob drives the rotating member to rotate, an arc-shaped stroke section is provided on the rotating member, and a driving cylinder connected to the arc clamp is provided at the end of the arc clamp, and the driving cylinder is passed through the stroke section. When the pressure cooker function is used, the arc clamp is driven to clamp the pot cover and the pot body by rotating the knob assembly, thereby improving the sealing of the pressure cooker when in use, and the arc clamp is clamped and released by moving the driving cylinder in the stroke section, thereby facilitating the control of the movement of the arc clamp.

Due to the adoption of the above technical scheme, the present invention has significant technical effects: the propulsion motor drives the heating component to move inside the pot cover and the air duct. When the pressure cooker is used, the propulsion motor drives the heating component to move into the air duct, so that the pot cover and the base assembly form a closed space. When the air fryer is used, the propulsion motor drives the heating component to move into the pot cover, and the inside of the pot cover and the air duct are communicated, which is convenient for air circulation, thereby realizing the switching between the pressure cooker function and the air fryer function. The technology realizes the conversion between the pressure cooker and the air fryer function through an internal device, and realizes the cooking method of pressure cooking the food first and then baking it, or baking it first and then pressure cooking, without the need for manual operations such as opening and replacing the lid.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention.

FIG. 2 is a schematic diagram of the structure when the pressure cooker function is used.

FIG. 3 is a schematic diagram of the structure when the air fryer function is used.

FIG. 4 is a schematic diagram of the explosion structure of the present invention.

FIG. 5 is a schematic diagram of a partially enlarged structure of the M portion in FIG. 4 .

FIG. 6 is a schematic diagram of a partially enlarged structure of portion N in FIG. 4 .

FIG. 7 is a schematic diagram of the structure of the apron top rod.

FIG. 8 is a schematic diagram of the three-dimensional structure of the front air duct.

FIG. 9 is a schematic diagram of the structure of the propulsion motor.

The parts indicated by the numbers in the accompanying drawings are as follows: 1-base assembly, 2-flip assembly, 3-shell, 4-inner shell, 5-shell cover, 6-upper cover, 7-upper cover bottom plate, 8-pot cover, 9-heating assembly, 10-air duct, 11-side wall hole, 12-front air duct, 13-heating pipe, 14-stroke gear, 15-propulsion motor, 16-sealing plate, 17-positioning buckle, 18-positioning card hole, 19-mounting seat, 20-driving gear, 21-ventilation hole, 22-pot cover base, 23-control panel, 24-leather ring top rod, 25-moving rod, 26- Actuating block, 27—mounting block, 28—travel hole, 29—top block, 30—through hole, 31—leather ring, 32—blowing assembly, 33—air duct hole, 34—air duct, 35—air duct cover, 36—blowing slot, 37—blowing sheet, 38—blowing motor, 39—ventilation net, 40—shell base, 41—heating plate base, 42—heating plate, 43—pot body, 44—arc clamp, 45—knob assembly, 46—knob, 47—rotating member, 48—travel section, 49—driving cylinder, 50—rotating shaft assembly, 51—connecting part, 52—positioning block, 53—rotating shaft.

DETAILED DESCRIPTION

The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

Example 1

A multifunctional cooking utensil, as shown in FIGS. 1 to 9, comprises a base assembly and a flip cover assembly 2 arranged above the base assembly 1, the base assembly 1 comprises an outer shell 3 and an inner shell 4 arranged in the outer shell 3, an outer shell cover plate 5 which is an integral structure with the inner shell 4 is arranged above the inner shell 4, one end of the flip cover assembly 2 is hinged to the base assembly 1 and can be flipped on the base assembly 1, the flip cover assembly 2 comprises an upper cover 6, an upper cover bottom plate 7, a pot cover 8, a heating component 9, and an air duct 10, the pot cover 8 is arranged in the middle of the upper cover bottom plate 7, the upper cover 6 is connected to the upper cover bottom plate 7, the pot cover 8, the heating component 9, the air duct 10 The duct 10 is arranged in the upper cover 6, the heating component 9 includes a front air duct 12 matched with the side wall hole 11 and a heating tube 13 installed in the front air duct 12, a travel tooth 14 is arranged on one side of the upper end surface of the front air duct 12, the front air duct 12 moves in the air duct 10, the air duct 10 is arranged on one side of the pot cover 8, a side wall hole 11 is opened on the side wall of one side of the pot cover 8, the air duct 10 is communicated with the inside of the pot cover 8, and a propulsion motor 15 matched with the heating component 9 is arranged on the upper cover bottom plate 7, and the propulsion motor 15 drives the heating component 9 to move in the air duct 10 and the pot cover 8. A sealing plate 16 connected to the side wall of the front air duct 12 is arranged in the pot cover 8, the sealing plate 16 moves in the pot cover 8 and is matched with the side wall hole 11, and the upper and lower ends of the sealing plate 16 are respectively provided with positioning buckles 17, and a positioning buckle hole 18 matched with the positioning buckle 17 is opened on the side wall of the pot cover 8 close to the air duct 10. A mounting seat 19 for mounting the propulsion motor 15 is provided on the upper cover bottom plate 7. The propulsion motor 15 is installed on the upper end of the mounting seat 19. The motor shaft end of the propulsion motor 15 is sleeved with a driving gear 20 that is compatible with the travel tooth 14. A ventilation hole 21 is opened on the bottom plate of the front air duct 12, and the heating pipe 13 is arranged above the ventilation hole 21.

A pot cover base 22 connected to the pot cover 8 is provided at the lower end of the pot cover 8, the upper cover bottom plate 7 is provided above the pot cover base 22, a leather ring top rod 24 is provided between the pot cover base 22 and the upper cover bottom plate 7, the leather ring top rod 24 is provided on the side close to the air duct 10, the leather ring top rod 24 includes a laterally arranged moving rod 25, a trigger block 26 provided above one end of the moving rod 25 and connected to the moving rod 25, and a mounting block 27 provided below the other end of the moving rod 25 and connected to the moving rod 25, a stroke hole 28 matched with the trigger block 26 is opened on the upper cover bottom plate 7, the trigger block 26 moves in the stroke hole 28, a top block 29 extending from the mounting block 27 to the trigger block 26 is provided on the mounting block 27, the top block 29 is cylindrical, a through hole 30 matched with the top block 29 is provided on the side wall of the pot cover base 22, and a leather ring 31 is provided in the pot cover base 22.

A blower assembly 32 is provided in the outer shell 3, and the blower assembly 32 is arranged below the air duct 10. Air duct holes 33 communicating with the blower assembly 32 are respectively provided on the upper cover bottom plate 7 and the outer shell cover plate 5. A downwardly extending air duct 34 is provided on the lower end surface of the air duct 10, and the air duct 34 is communicated with the inside of the air duct 10. The air duct 34 passes through the air duct hole 33 and is arranged above the blower assembly 32. A flippable air duct cover plate 35 is provided in the air duct hole 33 of the outer shell cover plate 5. The blower assembly 32 includes a blower groove 36, a blower blade 37 arranged in the blower groove 36, and a blower motor 38 connected to the blower blade 37. The blower groove 36 is arranged below the air duct 34, and the blower motor 38 is arranged on the outside of the blower groove 36. The motor shaft of the blower motor 38 passes through the side wall of the blower groove 36 and is connected to the blower blade 37. The blower motor 38 drives the blower blade 37 to rotate. A ventilation net 39 is provided on the side wall of the inner shell 4. The ventilation net 39 is arranged on one side of the blower groove 36. The interior of the inner shell 4 is communicated with the interior of the blower groove 36.

A shell base 40 connected to the shell 3 is provided below the shell 3. The shell 3 and the inner shell 4 are both hollow cylindrical structures that are connected from top to bottom. A heating plate base 41 and a heating plate 42 arranged in the heating plate base 41 are provided at the bottom of the shell 3. The heating plate base 41 is connected to the lower end of the inner shell 4. A pot body 43 is provided in the inner shell 4. The pot body 43 is arranged above the heating plate 42. It also includes two symmetrically arranged arc clamps 44 and a knob assembly 45 connected to the arc clamps 44. The arc clamps 44 are arranged below the upper cover bottom plate 7. The pot cover base 22 and the upper end of the pot body 43 are both arranged in the arc clamps 44. The knob assembly 45 includes a knob 46 and a rotating member 47 arranged in the knob 46. The rotating member 47 is in the shape of a cylinder. The knob 46 drives the rotating member 47 to rotate. The rotating member 47 is provided with two arc-shaped travel sections. 48, with the vertical axis of the cylinder as the center, the stroke sections 48 are respectively arranged on both sides of the vertical axis of the rotating member 47, the stroke section 48 on one side of the vertical axis of the rotating member 47 is arranged on the upper side of the horizontal axis of the rotating member 47, and the stroke section 48 on the other side of the vertical axis of the rotating member 47 is arranged on the lower side of the horizontal axis of the rotating member 47, and the end of the arc clamp 44 is provided with a driving cylinder 49 connected to the arc clamp 44, and the driving cylinder 49 is extended from the arc clamp 44 toward the rotating member 47, and the driving cylinder 49 is penetrated in the stroke section 48.

Example 2

A multifunctional cooking utensil, as shown in FIGS. 1 to 9 , is provided on the outer shell cover plate 5 with a rotating shaft assembly 50 installed on the outer shell cover plate 5 on the basis of embodiment 1, the rotating shaft assembly 50 is arranged on the side of the air duct hole 33 away from the inner shell 4, the upper cover bottom plate 7 is provided with a connecting portion 51 adapted to the rotating shaft assembly 50, and the upper cover bottom plate 7 is turned upside down on the outer shell cover plate 5. The rotating shaft assembly 50 includes a positioning block 52 connected to the outer shell cover plate 5 and a rotating shaft 53 penetrating the upper end of the positioning block 52, the connecting portions 51 are respectively arranged on both sides of the positioning block 52, and the rotating shaft 53 is penetrated in the connecting portion 51.

Example 3

A multifunctional cooking utensil, as shown in Figures 1 to 9, is based on Example 2. A control panel 23 installed on the outer wall of the outer shell 3 is provided on the shell 3, and the heating tube 13 of the heating component 9, the blower motor 38 of the blower component 32, and the heating plate 42 are all connected to the control panel 23.

When the pressure cooker function is used, the propulsion motor 15 drives the heating component 9 to move into the air duct 60 until the sealing plate 16 completely covers the side wall hole 11 of the pot cover 8. At this time, the pressure cooker is in a sealed state. The arc clamp 44 is closed by rotating the knob 46 to fix the pot cover 8 on the pot body 43. The pressure cooker function is realized by heating the heating plate 42. When the air fryer function is used, the propulsion motor 15 drives the heating component 9 to move into the pot cover 8 until the heating component 9 is entirely inside the pot cover 8. At the same time, the top block 29 of the leather ring push rod 24 pushes the leather ring 31 open to create a gap, forming an air duct circulation, and the blower component 32 pushes the air into the heating component 9 through the air duct 10. After being heated by the heating tube 13, hot air is blown downward, and enters between the pot body 43 and the inner shell 4 through the gap, and enters the blower component through the ventilation net 39, forming a hot air circulation, heating the food, and realizing the air frying function.

In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims (7)

1. A multifunctional cooking utensil, comprising a base assembly and a flip cover assembly (2) arranged above the base assembly (1), one end of the flip cover assembly (2) being hinged to the base assembly (1) and capable of flipping over on the base assembly (1), characterized in that: the flip cover assembly (2) comprises an upper cover bottom plate (7), a pot cover (8), a heating assembly (9), and an air duct (10), the pot cover (8) being arranged at the middle of the upper cover bottom plate (7), the air duct (10) being arranged at one side of the pot cover (8), a side wall hole (11) being provided on a side wall of one side of the pot cover (8), the air duct (10) being communicated with the interior of the pot cover (8), a propulsion motor (15) adapted to the heating assembly (9) being provided on the upper cover bottom plate (7), the propulsion motor (15) driving the heating assembly (9) to move in the air duct (10) and the pot cover (8); The heating component (9) comprises a front air duct (12) matched with the side wall hole (11) and a heating tube (13) installed in the front air duct (12); a travel tooth (14) is provided on one side of the upper end surface of the front air duct (12); a driving gear (20) matched with the travel tooth (14) is sleeved on the end of the motor shaft of the propulsion motor (15); a ventilation hole (21) is opened on the bottom plate of the front air duct (12); and the heating tube (13) is arranged above the ventilation hole (21); A pot cover base (22) connected to the pot cover (8) is provided at the lower end of the pot cover (8); an upper cover bottom plate (7) is provided above the pot cover base (22); a leather ring top rod (24) is provided between the pot cover base (22) and the upper cover bottom plate (7); the leather ring top rod (24) is provided on a side close to the air duct (10); the leather ring top rod (24) comprises a transversely arranged moving rod (25), a trigger block (26) provided above one end of the moving rod (25) and connected to the moving rod (25), and a rubber ring top rod (24) provided on the moving rod (25); 5) a mounting block (27) below the other end and connected to the moving rod (25); a travel hole (28) adapted to the actuating block (26) is provided on the upper cover bottom plate (7); the actuating block (26) moves in the travel hole (28); a top block (29) extending from the mounting block (27) to the actuating block (26); a through hole (30) adapted to the top block (29) is provided on the side wall of the pot cover base (22); and a leather ring (31) is provided in the pot cover base (22); The base assembly (1) comprises an outer shell (3) and an inner shell (4) arranged in the outer shell (3); an outer shell cover plate (5) which is an integral structure with the inner shell (4) is arranged above the inner shell (4); an air blowing assembly (32) is arranged in the outer shell (3); the air blowing assembly (32) is arranged below the air duct (10); an air duct hole (33) which is in communication with the air blowing assembly (32) is respectively arranged on the upper cover bottom plate (7) and the outer shell cover plate (5); an air duct (34) which extends downward is arranged on the lower end surface of the air duct (10); the air duct (34) is in communication with the inside of the air duct (10); the air duct (34) is passed through the air duct hole (33) and is arranged above the air blowing assembly (32); and an air duct cover plate (35) which can be turned upside down is arranged in the air duct hole (33) of the outer shell cover plate (5). 2. A multifunctional cooking utensil according to claim 1, characterized in that: a sealing plate (16) connected to the side wall of the front air duct (12) is provided in the pot cover (8), the sealing plate (16) moves in the pot cover (8) and is matched with the side wall hole (11), positioning buckles (17) are respectively provided at the upper and lower ends of the sealing plate (16), and a positioning buckle hole (18) matched with the positioning buckle (17) is opened on the side wall of the pot cover (8) close to the air duct (10). 3. A multifunctional cooking utensil according to claim 1, characterized in that: the air blast assembly (32) comprises an air blast groove (36), an air blast sheet (37) arranged in the air blast groove (36), and an air blast motor (38) connected to the air blast sheet (37), the air blast motor (38) drives the air blast sheet (37) to rotate, and a ventilation net (39) is provided on the side wall of the inner shell (4), and the ventilation net (39) is arranged on one side of the air blast groove (36) and communicates with the inside of the air blast groove (36). 4. A multifunctional cooking utensil according to claim 1, characterized in that: a shell base (40) connected to the shell (3) is provided below the shell (3), the shell (3) and the inner shell (4) are both hollow cylindrical structures connected to each other from top to bottom, a heating plate base (41) and a heating plate (42) arranged in the heating plate base (41) are provided at the bottom of the inner shell (3), and the heating plate base (41) is connected to the lower end of the inner shell (4). 5. A multifunctional cooking utensil according to claim 1, characterized in that: a rotating shaft assembly (50) mounted on the outer shell cover (5) is provided on the outer shell cover (5), the rotating shaft assembly (50) is arranged on the side of the air duct hole (33) away from the inner shell (4), a connecting portion (51) adapted to the rotating shaft assembly (50) is provided on the upper cover bottom plate (7), and the upper cover bottom plate (7) is turned upside down on the outer shell cover (5). 6. A multifunctional cooking utensil according to claim 4, characterized in that: the outer shell (3) is provided with a control panel (23) installed on the outer side wall of the outer shell (3), and the heating component (9), the air blowing component (32) and the heating plate (42) are all connected to the control panel (23). 7. A multifunctional cooking utensil according to claim 1, characterized in that: a pot body (43) is provided in the inner shell (4), the pot body (43) is provided above the heating plate (42), and further comprises two symmetrically arranged arc clamps (44) and a knob assembly (45) connected to the arc clamps (44), the arc clamps (44) being provided below the upper cover bottom plate (7), the pot cover base (22) and the upper end of the pot body (43) being provided in the arc clamps (44), the knob assembly (45) comprising a knob (46) and a rotating member (47) provided in the knob (46), the knob (46) driving the rotating member (47) to rotate, the rotating member (47) being provided with an arc-shaped travel section (48), the end of the arc clamps (44) being provided with a driving cylinder (49) connected to the arc clamps (44), the driving cylinder (49) being passed through the travel section (48).