Pressure relief mechanism and steam air fryer with same

Abstract

The utility model relates to the technical field of air fryers, in particular to a pressure relief mechanism and a steam air fryer with the pressure relief mechanism, the pressure relief mechanism comprises a mounting seat, a driving mechanism, a sealing plate and a limiting mechanism for limiting the sealing plate at an opening position and a closing position, and the driving mechanism drives the sealing plate to move to open or close the sealing plate. The limiting mechanism limits the sealing plate at the opening or closing position, so that the sealing plate cannot be jacked open by pressure in the air fryer when being closed and cannot be automatically closed in the opening state; the steam air fryer comprises a fryer body, a fryer door, a hot air assembly, a lower heating element and the pressure relief mechanism, the steamer used for containing water is arranged above the lower heating element, the pressure relief mechanism is switched between the opening state and the closing state, ventilation is kept in the air fryer or micro-pressure is generated, the function of generating steam through the steamer is combined, and therefore the steam air fryer is formed. The cooking effect is changed, and different cooking requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of air fryers, and more specifically, to a pressure relief mechanism and a steam air fryer having the same. Background Art

[0002] An air fryer uses high-temperature air to bake food to form an appearance and taste similar to deep-fried food. Compared with deep-fried food, it can significantly reduce the oil content in food and is beneficial to physical health. Currently, the functions of common air fryers on the market are mostly ordinary air hot air circulation heating. However, the food baked by the air fryer is prone to the problem of dry and hard surface, and at the same time, the functions are relatively single. Some manufacturers have developed steam air fryers.

[0003] Patent CN218390799U discloses an air fryer with a steam function, which includes a pot body and an oil receiving bucket. A pot body cavity for placing the oil receiving bucket is provided inside the pot body. A heating element for heating the bottom end of the oil receiving bucket is provided at the bottom of the pot body cavity. A bucket body cavity is provided inside the oil receiving bucket, and a food placement rack is provided inside the bucket body cavity. A water storage space is formed between the food placement rack and the bottom of the bucket body cavity. By adding a heating element at the bottom of the pot body cavity to heat the water in the oil receiving bucket to generate steam for steaming or boiling the food, there is no need to set a steam generator and a water pump, and the structure is simple and the cost is low. However, in the above solution, a micro-pressure cannot be generated in the pot body, and some cooking requirements cannot be met. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a pressure relief mechanism and a steam air fryer having the same, which can create a micro-pressure in the pot, change the cooking effect of air frying, and meet richer cooking requirements.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Provide a pressure relief mechanism for an air fryer, including a mounting seat, a driving mechanism, a sealing plate, and a limiting mechanism that restricts the sealing plate in the open and closed positions. The driving mechanism is connected to the sealing plate, and the limiting mechanism is installed on the mounting seat and connected to the driving mechanism.

[0007] The pressure relief mechanism of the present utility model installs the pressure relief mechanism on an air fryer that needs pressure relief and exhaust through a mounting seat. The driving mechanism drives the sealing plate to move, so that the sealing plate opens or closes. The limiting mechanism restricts the driving mechanism, thereby restricting the position of the sealing plate and limiting the position of the sealing plate to the open or closed position, so that the sealing plate will not be pushed open by the pressure inside the air fryer when it is closed, nor will it close on its own in the open state; by switching the sealing plate between the open state and the closed state, ventilation or slight pressure is maintained inside the air fryer, changing the cooking effect.

[0008] Further, the driving mechanism includes a knob, a rotating shaft, and several limiting members. One end of the rotating shaft is connected to the sealing plate, and the other end is connected to the knob. The limiting members are fixedly connected to the mounting seat. The rotating shaft passes through the limiting members, and the angle between the axis of the rotating shaft and the plane where the sealing plate is located is less than 90°. By rotating the knob, the rotating shaft rotates, driving the sealing plate connected to the rotating shaft to move, thereby controlling the sealing plate to block or open the exhaust port of the pot body, that is, controlling the sealing plate to open or close; the limiting members restrict the position of the rotating shaft, and the limiting members can prevent the rotating shaft from shifting in position, so that the rotating shaft can rotate with the knob without shifting in position; the angle between the axis of the rotating shaft and the plane where the sealing plate is located is less than 90°, which can ensure that the opening and closing of the sealing plate can be controlled by the rotation of the rotating shaft.

[0009] Further, it also includes a connecting rod, which is connected between the rotating shaft and the sealing plate. The connecting rod is perpendicular to the axis of the rotating shaft, and the axis of the rotating shaft is parallel to the plane where the sealing plate is located. The connecting rod can reduce the number of turns required for the knob and the rotating shaft to control the opening and closing of the sealing plate, improving efficiency.

[0010] Further, the limiting mechanism includes a torsion spring. One end of the torsion spring is rotatably connected to the mounting seat, and the other end is rotatably connected to the rotating shaft. The rotation axes of the two ends of the torsion spring are in the same direction as the axis of the rotating shaft. As the rotating shaft rotates, the connection point of the torsion spring and the rotating shaft moves circumferentially along the rotating shaft, and the connection point of the torsion spring and the mounting seat remains stationary. The distance between the two connection points changes periodically, causing the angle of the torsion spring to change periodically. When the connection point of the torsion spring and the rotating shaft moves to two positions where the torsion spring is in a free state, the sealing plate is respectively in the open and closed positions; when the sealing plate deviates from the open or closed position, the torsion spring deforms. Without external force, the elastic force of the torsion spring causes the sealing plate to return to the open or closed position, realizing the limiting function, so that the pressure relief mechanism can be maintained in the open or closed state without external force; the rotation axes of the two ends of the torsion spring are in the same direction as the axis of the rotating shaft, which can reduce the resistance of the two ends of the torsion spring to rotate, making the state switching of the pressure relief mechanism smoother and avoiding damage to the torsion spring.

[0011] Further, a first limiting hole is provided on the mounting seat, a limiting block is provided on the rotating shaft, a second limiting hole is provided on the limiting block, both ends of the torsion spring pass through the first limiting hole and the second limiting hole respectively, and the axial directions of the first limiting hole and the second limiting hole are the same as the axial direction of the rotating shaft. When the sealing plate is in the open state, the rotation of the rotating shaft changes the distance between the first limiting hole and the second limiting hole, the distance between both ends of the torsion spring changes, deforming and generating elastic force. When rotated to the state where the sealing plate is closed, the distance between the first limiting hole and the second limiting hole is restored, the distance between both ends of the torsion spring is restored, and the torsion spring relaxes; just passing both ends of the torsion spring through the first limiting hole and the second limiting hole can complete the installation of the torsion spring, which is convenient for disassembly and assembly and facilitates maintenance and replacement.

[0012] The present utility model also provides a steam air fryer, which includes a pot body, a pot door, a hot air assembly, a lower heating element, and the pressure relief mechanism as described above. The pot door is installed at the edge of the opening of the pot body, a sealing structure is provided between the pot door and the pot body, an exhaust port is provided on the wall surface of the pot body, the mounting seat is fixedly installed on the outer wall of the pot body, the sealing plate is in close contact with the exhaust port, the hot air assembly is provided on the wall surface of the pot body, the lower heating element is located at the bottom of the inner cavity of the pot body, and a steamer for holding water is provided above the lower heating element.

[0013] When using the steam air fryer of the present utility model, open the pot door, put the food into the pot body, close the pot door, and the sealing structure seals between the pot door and the pot body, so that the steam and heat in the pot body will not easily escape; open the pressure relief mechanism and turn on the hot air assembly, the pressure relief mechanism discharges the moisture in the pot body to crisp the food and achieve the effect of air-frying the food; close the pressure relief mechanism and turn on the hot air assembly, which can generate a slight pressure in the sealed pot body, lock the moisture of the food while quickly maturing the food, and after a certain time, open the pressure relief mechanism to produce a crisping effect on the surface of the food, making the food crispy on the outside and tender on the inside; add water to the steamer and start the lower heating element, which can evaporate the moisture in the steamer to generate steam to prevent the food from becoming dry and firewood. Close the pressure relief mechanism, and the generated steam can be sealed in the pot body to increase the steam density and pressure and achieve the effect of micro-pressure steaming.

[0014] Further, an outer shell is provided outside the pot body, an opening opposite to the exhaust port is provided on the outer shell, an exhaust window is installed on the opening, and a plurality of through holes are provided on the exhaust window. When the pressure relief mechanism is opened, the steam sprays out from the exhaust port, is blocked by the exhaust window and then sprays out from the through holes, slowing down the spraying speed of the steam and improving safety.

[0015] Further, a steaming tray is provided inside the steamer. The steaming tray is provided with steaming holes, and a baking tray is arranged above the steaming tray. Add water to the steamer, place the ingredients on the steaming tray, and turn on the lower heating element, then it is convenient to steam the ingredients using steam; place the ingredients on the baking tray, turn on the hot air component, then the ingredients can be air-fried. At the same time, add an appropriate amount of water to the steamer and turn on the lower heating element to mix the steam and hot air, which can avoid excessive water loss of the food and improve the cooking effect of some ingredients; when the hot air component and the lower heating element are turned on simultaneously, it can also make the temperature inside the pot body more uniform.

[0016] Further, support blocks for supporting the baking tray are provided on two opposite side walls of the inner cavity of the pot body. The number and height of the support blocks on the two opposite side walls are equal, and several groups of support blocks are arranged from top to bottom. A support frame is provided on the side edge of the baking tray, and the support frame is placed on the support blocks. There is a gap between the support blocks and the edge of the baking tray. The support frame facilitates moving the baking tray. Place the baking tray on the support blocks, and the steam passes through the gap between the support blocks and the baking tray and mixes with the hot air to improve the cooking effect; by placing the baking tray on the support blocks at different heights, the height of the baking tray can be adjusted to change the distance between the ingredients and the hot air component and the steamer, thereby flexibly adjusting the cooking effect.

[0017] Further, the hot air component includes an upper heating element and a blowing component. The blowing component is arranged at the top of the inner cavity of the pot body, and the upper heating element is arranged below the blowing component. When the hot air component is turned on, the blowing component and the upper heating element are turned on. The air flow generated by the blowing component is heated when passing through the upper heating element, and the generated hot air is used to realize the air-frying function.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] The pressure relief mechanism of the present utility model and the steam air fryer having the same can switch between the air-frying and steaming functions, and at the same time can create a micro-pressure in the pot body to strengthen the effects of air-frying and steaming, meeting more diverse cooking needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the pressure relief mechanism of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the limiting mechanism of the present utility model;

[0022] Figure 3 is a first schematic structural diagram of the steam air fryer of the present utility model;

[0023] Figure 4 is a second schematic structural diagram of the steam air fryer of the present utility model;

[0024] Figure 5 This is the third structural schematic diagram of the steam air fryer of the present utility model;

[0025] Figure 6 This is the schematic diagram of the hot air assembly of the present utility model;

[0026] In the drawings: 1, pot body; 11, support block; 12, outer shell; 2, pot door; 21, sealing structure; 3, hot air assembly; 31, blowing assembly; 311, rotating motor; 312, fan blade; 313, cold air ventilation opening; 32, upper heating element; 4, lower heating element; 5, mounting seat; 6, driving mechanism; 61, knob; 62, rotating shaft; 63, limiting member; 64, connecting rod; 7, limiting mechanism; 71, torsion spring; 72, first limiting hole; 73, limiting block; 731, second limiting hole; 8, sealing plate; 9, exhaust window; 10, steamer; 101, steaming tray; 110, baking tray; 1101, support frame. Specific embodiments

[0027] The present utility model will be further described below in conjunction with specific embodiments. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] As Figures 1 to 2 shown in the first embodiment of the pressure relief mechanism of the present utility model, it includes a mounting seat 5, a driving mechanism 6, a sealing plate 8 and a limiting mechanism 7 that restricts the sealing plate 8 in the open and closed positions. The driving mechanism 6 is connected to the sealing plate 8, and the limiting mechanism 7 is installed on the mounting seat 5 and connected to the driving mechanism 6.

[0031] The pressure relief mechanism of the present utility model installs the pressure relief mechanism on an air fryer that needs pressure relief and exhaust through a mounting seat 5. A driving mechanism 6 drives a sealing plate 8 to move, so that the sealing plate 8 is opened or closed. A limiting mechanism 7 restricts the driving mechanism 6, thereby restricting the position of the sealing plate 8 and limiting the position of the sealing plate 8 to the opened or closed position, so that the sealing plate 8 will not be pushed open by the pressure in the container when closed, nor will it close by itself in the opened state.

[0032] The driving mechanism 6 includes a knob 61, a rotating shaft 62 and a plurality of limiting members 63. One end of the rotating shaft 62 is connected to the sealing plate 8, and the other end is connected to the knob 61. The limiting members 63 are fixedly connected to the mounting seat 5. The rotating shaft 62 passes through the limiting members 63, and the included angle between the axis of the rotating shaft 62 and the plane where the sealing plate 8 is located is less than 90°. By rotating the knob 61, the rotating shaft 62 rotates, driving the sealing plate 8 connected to the rotating shaft 62 to move, thereby controlling the opening or closing of the sealing plate 8; the limiting members 63 limit the position of the rotating shaft 62, and the limiting members 63 can prevent the rotating shaft 62 from shifting in position, so that the rotating shaft 62 can rotate with the knob 61 without shifting in position; the included angle between the axis of the rotating shaft 62 and the plane where the sealing plate 8 is located is less than 90°, which can ensure that the opening and closing of the sealing plate 8 can be controlled by the rotation of the rotating shaft 62.

[0033] The limiting member 63 includes an upper limiting member and a lower limiting member. Both the upper limiting member and the lower limiting member are provided with semi-circular grooves, and the two semi-circular grooves are spliced into a circular through hole with a diameter equal to or slightly larger than the rotating shaft 62. The upper limiting member and the lower limiting member are connected by bolts, with a simple structure, convenient loading and unloading, and convenient maintenance of the pressure relief mechanism; the axial center heights of each group of limiting members 63 are equal and the axes are the same.

[0034] It further includes a connecting rod 64. The connecting rod 64 is connected between the rotating shaft 62 and the sealing plate 8. The connecting rod 64 is perpendicular to the axis of the rotating shaft 62, and the axis of the rotating shaft 62 is parallel to the plane where the sealing plate 8 is located. The connecting rod 64 can reduce the number of turns required for the knob 61 and the rotating shaft 62 to control the opening and closing of the sealing plate 8, improving efficiency. The rotation plane of the connecting rod 64 is perpendicular to the two longitudinal sides of the sealing plate 8.

[0035] The limiting mechanism 7 includes a torsion spring 71. One end of the torsion spring 71 is rotatably connected to the mounting seat 5, and the other end is rotatably connected to the rotating shaft 62. The axes of the rotating shafts 62 at the two ends of the torsion spring 71 are in the same direction as the axis of the rotating shaft 62. As the rotating shaft 62 rotates, the connection point of the torsion spring 71 and the rotating shaft 62 moves circumferentially along the rotating shaft 62, and the connection point of the torsion spring 71 and the mounting seat 5 remains stationary. The distance between the two connection points changes periodically, causing the angle of the torsion spring 71 to change periodically. When the connection point of the torsion spring 71 and the rotating shaft 62 moves to two positions where the torsion spring 71 can be in a free state, the sealing plate 8 is in the open and closed positions respectively; when the sealing plate 8 is disengaged from the open or closed position, the torsion spring 71 deforms. Without external force, the elastic force of the torsion spring 71 resets the sealing plate 8 to the open or closed position, realizing the limiting function, so that the pressure relief mechanism can be maintained in the open or closed state without external force; the axes of the rotating shafts 62 at the two ends of the torsion spring 71 are in the same direction as the axis of the rotating shaft 62, which can reduce the resistance of the two ends of the torsion spring 71 during rotation, make the state switching of the pressure relief mechanism smoother, and avoid damage to the torsion spring 71.

[0036] A first limiting hole 72 is provided on the mounting seat 5, a limiting block 73 is provided on the rotating shaft 62, a second limiting hole 731 is provided on the limiting block 73, and the two ends of the torsion spring 71 respectively pass through the first limiting hole 72 and the second limiting hole 731. The axes of the first limiting hole 72 and the second limiting hole 731 are in the same direction as the axis of the rotating shaft 62. When the sealing plate 8 is opened or closed, the distance between the first limiting hole 72 and the second limiting hole 731 is equal to the distance between the two ends of the torsion spring 71 in the relaxed state. In the open state of the sealing plate 8, the rotation of the rotating shaft 62 changes the distance between the first limiting hole 72 and the second limiting hole 731, the distance between the two ends of the torsion spring 71 changes, deforms, and generates an elastic force. When rotated to the closed state of the sealing plate 8, the distance between the first limiting hole 72 and the second limiting hole 731 is restored, the distance between the two ends of the torsion spring 71 is restored, and the torsion spring 71 relaxes; only by passing the two ends of the torsion spring 71 through the first limiting hole 72 and the second limiting hole 731 can the installation of the torsion spring 71 be completed. The disassembly and assembly are convenient, which is conducive to maintenance and replacement.

[0037] When the sealing plate 8 is in the open state, the knob 61 drives the rotating shaft 62 to rotate, changing the distance between the first limiting hole 72 and the second limiting hole 731. The distance between the two ends of the torsion spring 71 changes, deforms, and generates an elastic force to restore the rotating shaft 62. When rotating half of the journey, the torsion spring 71 generates an elastic force to continue rotating the rotating shaft 62 until the sealing plate 8 is closed. When rotated to the closed state of the sealing plate 8, the distance between the first limiting hole 72 and the second limiting hole 731 is restored, and the torsion spring 71 relaxes; only by passing the two ends of the torsion spring 71 through the first limiting hole 72 and the second limiting hole 731 can the installation of the torsion spring 71 be completed. The disassembly and assembly are convenient, which is conducive to maintenance and replacement.

[0038] Embodiment 2

[0039] This embodiment is the first embodiment of the steam air fryer of the present utility model, which includes a pot body 1, a pot door 2, a hot air assembly 3, a lower heating element 4, and a pressure relief mechanism as described in the first embodiment. The pot door 2 is installed at the edge of the opening of the pot body 1. A sealing structure 21 is provided between the pot door 2 and the pot body 1. An exhaust port is provided on the wall surface of the pot body 1. The pressure relief mechanism is installed outside the exhaust port. The mounting seat 5 is fixedly installed on the outer wall of the pot body 1. The sealing plate 8 is in close contact with the exhaust port. The hot air assembly 3 is provided on the wall surface of the pot body 1. The lower heating element 4 is located at the bottom of the inner cavity of the pot body 1. A steamer 10 for holding water is provided above the lower heating element 4.

[0040] During use, open the pot door 2, put the food into the pot body 1, close the pot door 2, and the sealing structure 21 seals between the pot door 2 and the pot body 1, so that the steam and heat in the pot body 1 will not easily escape; open the pressure relief mechanism, turn on the hot air assembly 3, and the pressure relief mechanism discharges the moisture in the pot body 1 to crisp the food and achieve the effect of air-frying the food; close the pressure relief mechanism, turn on the hot air assembly 3, which can generate a slight pressure in the sealed pot body 1, lock the moisture of the food while quickly maturing the food, and after a certain period of time, open the pressure relief mechanism to produce a crisping effect on the surface of the food, making the food crispy on the outside and tender on the inside; add water to the steamer 10 and start the lower heating element 4, which can evaporate the moisture in the steamer 10 to generate steam to prevent the food from becoming dry and firewood. Close the pressure relief mechanism, and the generated steam can be sealed in the pot body 1 to increase the steam density and pressure and achieve the effect of micro-pressure steaming, as Figure 3 and Figure 4 shown.

[0041] In this embodiment, the opening of the pot door 2 and the pot body 1 is provided on the side of the pot body 1; the sealing structure 21 is a sealing ring to achieve absolute sealing between the pot door 2 and the pot body 1; a force application mechanism is also provided between the pot door 2 and the pot body 1 so that the pot door 2 needs to be opened under a certain force; a temperature sensor, specifically an NTC thermistor, is provided on the lower heating element 4, which is beneficial to the precise adjustment of the steaming temperature and the steam generation speed, as Figure 3 shown.

[0042] An outer shell 12 is provided outside the pot body 1. An opening facing the exhaust port is provided on the outer shell 12. An exhaust window 9 is installed on the opening. A number of through holes are provided on the exhaust window 9. When the pressure relief mechanism is opened, the steam sprays out from the exhaust port, is blocked by the exhaust window 9 and then sprays out from the through holes, slowing down the speed of the steam spraying. At the same time, part of the steam is blocked and converges into a water flow and flows down, reducing the amount of the sprayed steam, thereby avoiding scalding the operator during pressure relief and improving safety, as Figure 3 and Figure 4 shown.

[0043] The steamer 10 is internally provided with a steaming tray 101 which is provided with steaming holes, and a baking tray 110 is arranged above the steaming tray 101. Add water to the steamer 10, place the food ingredients on the steaming tray 101, and turn on the lower heating element 4, then it is convenient to steam the food ingredients using steam; place the food ingredients on the baking tray 110, turn on the hot air assembly 3, then the food ingredients can be air-fried. At the same time, add an appropriate amount of water to the steamer 10 and turn on the lower heating element 4 to mix the steam and the hot air, which can avoid excessive water loss of the food and improve the cooking effect on some food ingredients; when the hot air assembly 3 and the lower heating element 4 are turned on simultaneously, it can also make the temperature inside the pot body 1 more uniform, as Figure 5 shown.

[0044] By turning on and off the pressure relief mechanism and disassembling and assembling the steaming tray 101 and the baking tray 110, the steam air fryer can be switched among various functions to achieve rich cooking effects.

[0045] On two opposite side walls of the inner cavity of the pot body 1, there are support blocks 11 for supporting the baking tray 110. The number and height of the support blocks 11 on the two opposite side walls are equal, and several groups of support blocks 11 are arranged from top to bottom. A support frame 1101 is provided on the side edge of the baking tray 110, and the support frame 1101 is placed on the support blocks 11. There is a gap between the support blocks 11 and the edge of the baking tray 110. The support frame 1101 facilitates the movement of the baking tray 110. Place the baking tray 110 on the support blocks 11, and the steam passes through the gap between the support blocks 11 and the baking tray 110 and mixes with the hot air to improve the cooking effect; by placing the baking tray 110 on the support blocks 11 at different heights, the height of the baking tray 110 can be adjusted, and the distances between the food ingredients and the hot air assembly 3 and the steamer 10 can be changed, so as to flexibly adjust the cooking effect, as Figure 5 shown.

[0046] In this embodiment, there are two support frames 1101. The support frame 1101 is a semi-rectangular ring structure, and both ends of the support frame 1101 are fixed on the baking tray 110. The two support frames 1101 are respectively fixed on two opposite side edges of the baking tray 110 and are respectively placed on two support blocks 11 with the same height, as Figure 5 shown.

[0047] When the baking tray 110 is placed on the higher support block 11, it is closer to the hot air assembly 3, farther from the lower heating element 4 and the steamer 10, and the moisture of the food evaporates faster, making it easier to produce a crispy texture; when the baking tray 110 is placed on the lower support block 11, it is farther from the hot air assembly 3, closer to the lower heating element 4 and the steamer 10, and the steam density around the food is high, and more moisture can be retained.

[0048] Embodiment Three

[0049] This embodiment is the second embodiment of the steam air fryer of the present utility model. This embodiment is similar to Embodiment 2, except that the hot air assembly 3 includes an upper heating element 32 and a blowing assembly 31. The blowing assembly 31 is provided at the top of the inner cavity of the pot body 1, and the upper heating element 32 is provided below the inner cavity of the pot body 1. When the hot air assembly 3 is turned on, the blowing assembly 31 and the upper heating element 32 are turned on. The air flow generated by the blowing assembly 31 is heated when passing through the upper heating element 32, and the generated hot air is used to implement the air frying function, such as Figure 6 as shown

[0050] The hot air assembly 3 includes an upper heating element 32 and a blowing assembly 31. The blowing assembly 31 is provided at the top of the inner cavity of the pot body 1, and the upper heating element 32 is provided below the blowing assembly 31. When the hot air assembly 3 is turned on, the blowing assembly 31 and the upper heating element 32 are turned on. The air flow generated by the blowing assembly 31 is heated when passing through the upper heating element 32, and the generated hot air is used to implement the air frying function.

[0051] In this embodiment, the blowing assembly 31 includes a rotating motor 311 and a fan blade 312. The rotating motor 311 is located on the top surface of the pot body 1. The output end of the rotating motor 311 passes through the top surface of the pot body 1 and is connected to the center of the fan blade 312. The rotating motor 311 drives the fan blade 312 to rotate, generating a downward air flow. After passing through the upper heating element 32, it blows onto the food ingredients for air frying the food ingredients.

[0052] The lower heating element 4 includes a power supply and a resistance wire. The resistance wire is in a spiral shape to increase the resistance of the resistance wire, thereby improving the heating effect.

[0053] A cold air ventilation opening 313 is also provided at the top of the pot body 1. When the rotating motor 311 is working, hot and cold air is alternately exchanged through the cold air ventilation opening 313 to reduce the temperature of the rotating motor 311 and the surrounding environment, improve the working environment of the rotating motor 311, keep the rotating motor 311 in a good working state, and reduce the occurrence of faults.

[0054] In the specific content of the above specific implementation manner, each technical feature can be combined arbitrarily without contradiction. For the sake of concise description, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features does not exist in contradiction, it should be considered as the scope recorded in this specification.

[0055] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A pressure relief mechanism, characterized in that, It includes a mounting base (5), a driving mechanism (6), a sealing plate (8), and a limiting mechanism (7) for restricting the sealing plate (8) in the open and closed positions. The driving mechanism (6) is connected to the sealing plate (8). The limiting mechanism (7) is mounted on the mounting base (5) and is connected to the driving mechanism (6).

2. The pressure relief mechanism according to claim 1, wherein The driving mechanism (6) includes a knob (61), a rotating shaft (62), and a number of limiting members (63). One end of the rotating shaft (62) is connected to the sealing plate (8), and the other end is connected to the knob (61). The limiting members (63) are fixedly connected to the mounting base (5). The rotating shaft (62) passes through the limiting members (63), and the angle between the axis of the rotating shaft (62) and the plane where the sealing plate (8) is located is less than 90°.

3. The pressure relief mechanism according to claim 2, characterized in that, It further includes a connecting rod (64) connected between the rotating shaft (62) and the sealing plate (8). The connecting rod (64) is perpendicular to the axis of the rotating shaft (62), and the axis of the rotating shaft (62) is parallel to the plane where the sealing plate (8) is located.

4. The pressure relief mechanism according to claim 2, wherein, The limiting mechanism (7) includes a torsion spring (71). One end of the torsion spring (71) is rotatably connected to the mounting base (5), and the other end is rotatably connected to the rotating shaft (62). The rotation axes of the two ends of the torsion spring (71) are in the same direction as the axis direction of the rotating shaft (62).

5. The pressure relief mechanism according to claim 4, characterized in that A first limiting hole (72) is provided on the mounting base (5). A limiting block (73) is provided on the rotating shaft (62), and a second limiting hole (731) is provided on the limiting block (73). The two ends of the torsion spring (71) respectively pass through the first limiting hole (72) and the second limiting hole (731). The axis directions of the first limiting hole (72) and the second limiting hole (731) are the same as the axis direction of the rotating shaft (62).

6. A steam air fryer, characterized in that, It includes a pot body (1), a pot door (2), a hot air assembly (3), a lower heating element (4), and a pressure relief mechanism as described in any one of claims 1 to 5. The pot door (2) is installed at the edge of the opening of the pot body (1). A sealing structure (21) is provided between the pot door (2) and the pot body (1). An exhaust port is provided on the wall surface of the pot body (1). The mounting base (5) is fixedly installed on the outer wall of the pot body (1). The sealing plate (8) is in close contact with the exhaust port. The hot air assembly (3) is provided on the wall surface of the pot body (1). The lower heating element (4) is located at the bottom of the inner cavity of the pot body (1). A steamer (10) for holding water is provided above the lower heating element (4).

7. The steam air fryer according to claim 6, wherein An outer shell (12) is provided outside the pot body (1). An opening facing the exhaust port is provided on the outer shell (12). An exhaust window (9) is installed on the opening, and a number of through holes are provided on the exhaust window (9).

8. The steam air fryer according to claim 6, wherein, A steaming tray (101) is provided inside the steamer (10). Steaming holes are provided on the steaming tray (101). A baking tray (110) is provided above the steaming tray (101).

9. The steam air fryer according to claim 8, wherein, On two opposite side walls of the inner cavity of the pot body (1), there are support blocks (11) for supporting the baking tray (110). The number and height of the support blocks (11) on the two opposite side walls are equal, and several groups of support blocks (11) are arranged from top to bottom. On the side edge of the baking tray (110), there is a support frame (1101), and the support frame (1101) is placed on the support blocks (11). There is a gap between the support blocks (11) and the edge of the baking tray (110).

10. The steam air fryer according to claim 6, characterized in that, The hot air assembly (3) includes an upper heating element (32) and a blowing assembly (31). The blowing assembly (31) is arranged at the top of the inner cavity of the pot body (1), and the upper heating element (32) is arranged below the blowing assembly (31).

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