CN112006516A

CN112006516A - Cooking appliance and detection method thereof

Info

Publication number: CN112006516A
Application number: CN201910471045.XA
Authority: CN
Inventors: 黄德万; 翁金星
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-12-01

Abstract

The invention discloses a cooking appliance, comprising: a body portion having a cooking cavity therein; the containing part is arranged in the cooking cavity; pneumatic elevating gear, pneumatic elevating gear has and is located hold the lift portion of the below of portion, pneumatic elevating gear sets to utilize gas drive lift portion goes up and down so that it can reciprocate to hold the portion, pneumatic elevating gear's air inlet and gas outlet are located respectively the upper portion in culinary art chamber. The cooking appliance provided by the embodiment of the invention has the advantages of convenience in up-and-down movement of the containing part, convenience in use, good cooking effect and the like.

Description

Cooking appliance and detection method thereof

Technical Field

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

Background

Draining rice, also called retort rice, which comprises the key steps of: boiling the washed rice in water, taking out the soup rice after a proper time, filtering, putting the filtered rice on a steamer for steaming, and keeping the rice soup for drinking.

The related art electric cooker can realize the function of draining rice, after the rice is put into the electric cooker, the rice is firstly soaked in water, and the rice and water separation is realized after the water is boiled for a period of time. However, the cooked rice thus produced has a high sugar content, and is not suitable for diabetics, and the user is likely to become fat after eating the cooked rice.

In addition, in some related arts, a cooking appliance having a rice draining function often has a problem of safety and reliability, and is subject to further improvement.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a cooking appliance which has the advantages of convenience in realizing the up-and-down movement of the containing part, convenience in use, good cooking effect and the like.

To achieve the above object, an embodiment according to a first aspect of the present invention proposes a cooking appliance, including: a body portion having a cooking cavity therein; the containing part is arranged in the cooking cavity; pneumatic elevating gear, pneumatic elevating gear has and is located hold the lift portion of the below of portion, pneumatic elevating gear sets to utilize gas drive lift portion goes up and down so that it can reciprocate to hold the portion, pneumatic elevating gear's air inlet and gas outlet are located respectively the upper portion in culinary art chamber.

The cooking appliance provided by the embodiment of the invention has the advantages of convenience in up-and-down movement of the containing part, convenience in use, good cooking effect and the like.

In addition, the cooking appliance according to the above embodiment of the present invention may further have the following additional technical features:

according to some embodiments of the invention, the pneumatic lifting device comprises: the air bag is arranged in the cooking cavity and is connected with the lifting part, and the air bag can realize volume change by utilizing gas so as to drive the lifting part to lift; an air tube, one end of which is connected with the air bag to supply air to the air bag, and the other end of which extends to the upper part of the body part and is provided with the air inlet and the air outlet.

According to some embodiments of the invention, the lifting portion is integrated with a top wall of the airbag.

According to some embodiments of the invention, the airbag has a top wall and a side peripheral wall provided with a pleat structure that is switchable between a deployed state and a stowed state when the airbag is raised and lowered.

According to some embodiments of the invention, the elevating portion is provided at an upper portion of the air bag, the air bag has a bottom wall supported by a bottom wall of the cooking cavity, and one end of the air tube is connected to a side peripheral wall of the air bag.

According to some embodiments of the invention, the air bag is snap-connected to the body portion by a snap-fit arrangement.

According to further embodiments of the invention, the pneumatic lifting device comprises: the lifting part is arranged at the opening in a sealing manner and can move up and down relative to the base by utilizing gas in the gas cavity; and one end of the air pipe is connected with the base, and the other end of the air pipe extends to the upper part of the body part and is provided with the air inlet and the air outlet.

According to some embodiments of the invention, the air chamber comprises a plurality of sub-chambers distributed in a horizontal direction and a ventilation channel connecting the two sub-chambers, the upper part of each sub-chamber is provided with the opening, and the lifting part comprises a plurality of openings arranged in a one-to-one correspondence manner.

According to some embodiments of the invention, the lifting portion comprises: a lifting rod inserted in the opening; the driving head is arranged at the upper end of the lifting rod and is suitable for driving the containing part, the driving head protrudes out of the outer peripheral surface of the lifting rod, and when the lifting part moves downwards to the lowest point, the driving head is abutted to the edge of the opening so as to limit the lifting part.

According to some embodiments of the invention, a seal is provided between the lifting portion and the base to seal a gap therebetween.

According to some embodiments of the invention, the air tube is bent, the air inlet and the air outlet are the same, and the upper portion of the body is provided with a fixing portion for fixing the upper portion of the air tube.

According to some embodiments of the invention, the fixing portion is connected to an inner side surface of the body portion and configured as a boss structure protruding toward the inside of the cooking cavity.

According to some embodiments of the invention, the fixing part has a slot adapted to snap fit with the air tube, the air tube is adapted to snap fit into the slot, and the air inlet is located above the fixing part.

According to some embodiments of the invention, at least one of the air inlet and the air outlet is configured as an elastically deformable elastic orifice.

According to some embodiments of the invention, the pneumatic lifting device is inflatable or deflatable by an electric inflation device.

According to some embodiments of the present invention, the pneumatic lifting device is connected to the electric inflation device through a self-provided air pipe with a joint, an opening is formed at one end of the air pipe to form the air inlet, the joint is provided at the air inlet, an openable on-off valve is further provided between the joint and the air pipe, when the pneumatic lifting device is inflated, the pneumatic lifting device enters air through the on-off valve, and when the pneumatic lifting device is exhausted, the pneumatic lifting device exhausts air through the on-off valve.

According to some embodiments of the invention, the on-off valve is a three-way valve having an exhaust port communicating with atmosphere, a first intake port communicating with the pneumatic lifting device, and a second intake port communicating with the electric inflator, the three-way valve being switchable between an inflated state in which the first intake port is in communication with the second intake port and the first intake port is disconnected from the exhaust port, and an exhausted state in which the first intake port is in communication with the exhaust port and the first intake port is disconnected from the second intake port.

According to some embodiments of the invention, the three-way valve is a solenoid valve, the three-way valve being in the charging state when charged and the three-way valve being in the discharging state when de-energized.

According to some embodiments of the invention, an openable and closable inflation switching valve is further provided between the electric inflator and the three-way valve, the inflation switching valve being opened when the pneumatic lifting device is inflated, and the inflation switching valve being closed when the pneumatic lifting device is inflated.

According to some embodiments of the invention, the cooking appliance further comprises: the detection device is used for detecting the inflation quantity in the pneumatic lifting device, the detection device is communicated with the electric inflation device, and the electric inflation device stops working when the detection value of the detection device is larger than or equal to a preset value.

According to some embodiments of the invention, the detection device comprises: a timing unit for detecting the inflation time of the lifting unit, wherein the detection value is a time signal, or a current detection unit for detecting the current of the inflator, and the detection value is a current signal; or, a position detection unit for detecting the position of the containing part, wherein the detection value is a position signal.

According to some embodiments of the present invention, the containing part is provided with a steam hole for communicating the cooking cavity with an inner space of the containing part, the containing part includes a containing part peripheral wall and a containing part bottom wall, and the steam hole includes: at least one of the peripheral wall steam hole provided in the peripheral wall of the containing part and the bottom wall steam hole provided in the bottom wall of the containing part.

According to some embodiments of the invention, a top of the peripheral wall of the containing part is provided with a flange extending in a direction away from the containing part.

An embodiment according to a second aspect of the invention proposes a method of detecting a cooking appliance, the cooking appliance comprising: the detection method comprises a body part, a containing part and a pneumatic lifting device, wherein a cooking cavity is formed in the body part, the containing part is arranged in the cooking cavity, the pneumatic lifting device is provided with a lifting part located below the containing part, the pneumatic lifting device is arranged to drive the lifting part to lift by utilizing gas so as to enable the containing part to move up and down, a gas inlet and a gas outlet of the pneumatic lifting device are respectively located at the upper part of the cooking cavity, the pneumatic lifting device is charged and discharged by an electric charging device, and the detection method comprises the following steps:

operating the electric inflation device to inflate the pneumatic lifting device;

and detecting whether the pneumatic lifting device finishes inflating, if so, controlling the electric inflating device to stop working, and if not, keeping the electric inflating device in a working state.

According to some embodiments of the invention, the cooking utensil is preset with a preset value, a detection value is obtained by detecting the state of the cooking utensil, the preset value is compared with the detection value, and whether the pneumatic lifting device is completely inflated is judged according to the comparison result.

According to some embodiments of the present invention, the predetermined value is a predetermined position value of the containing part, and the detection value is a position detection value of the containing part, the position detection value being obtained by detecting a position of the containing part.

According to some embodiments of the present invention, the predetermined position value of the containing part includes a predetermined height value of the containing part, the position detection value of the containing part includes a detected height value of the containing part, the detected height value is obtained by detecting a height of the containing part, and when the detected height value is greater than the predetermined height value, it is determined that the pneumatic lifting device is completely inflated.

According to other embodiments of the present invention, the predetermined value is a predetermined current value of the electric inflator, the detection value is a detected current value of the electric inflator, the detected current value is obtained by detecting a current of the electric inflator, and when the detected current value is greater than or equal to the predetermined current value, it is determined that the inflation of the pneumatic lifting device is completed.

According to some embodiments of the invention, the cooking appliance is provided with a contact switch, when the pneumatic lifting device completes the inflation, the contact switch is switched to be opened and closed under the action of the containing part, and the detection of whether the pneumatic lifting device completes the inflation comprises the following steps:

and detecting the state of the contact switch, judging that the pneumatic lifting device is completely inflated if the state switching of the contact switch is detected, and judging that the pneumatic lifting device is not completely inflated if the state switching of the contact switch is not detected.

According to some embodiments of the invention, the contact switch is disposed at an upper portion of the main body, the main body is further provided with a push rod for driving the contact switch to switch on and off, and the holding portion drives the contact switch through the push rod.

According to other embodiments of the present invention, the cooking appliance is preset with a preset time value, the electric air charging device is timed when starting to work, and when the timed time reaches the preset time value, the pneumatic lifting device 300 is judged to be completely charged.

According to the detection method of the cooking utensil provided by the embodiment of the invention, the cooking utensil has the advantages of convenience in up-and-down movement of the containing part, convenience in use, good cooking effect and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a sectional view of a cooking appliance according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a receiving part of a cooking appliance according to an embodiment of the present invention.

Fig. 3 is a partial structural schematic view of a cooking appliance according to some embodiments of the present invention.

Fig. 4 is a partial structural schematic view of a cooking appliance according to some embodiments of the present invention.

Fig. 5 is a partial structural schematic view of a cooking appliance according to some embodiments of the present invention.

Fig. 6 is a partial structural view of a cooking appliance according to other embodiments of the present invention.

Fig. 7 is a partial structural view of a cooking appliance according to other embodiments of the present invention.

Fig. 8 is a partial sectional view of a body part of a cooking appliance according to an embodiment of the present invention.

Fig. 9 is a schematic gas flow diagram of a cooking appliance according to an embodiment of the present invention.

Reference numerals: the cooking appliance 1, the body part 100, the cooking cavity 101, the fixing part 110, the clamping groove 111, the containing part 200, the protruding part 210, the containing part bottom wall 220, the containing part peripheral wall 230, the steam hole 231, the peripheral wall steam hole 232, the bottom wall steam hole 233, the step structure 240, the flange 250, the pneumatic lifting device 300, the air inlet 301, the air outlet 302, the lifting part 310, the lifting rod 311, the driving head 312, the air bag 320, the top wall 321, the side peripheral wall 322, the corrugated structure 323, the bottom wall 324, the air pipe 330, the joint 331, the base 340, the air cavity 341, the opening 342, the sub-cavity 343, the ventilation channel 344 and the sealing member 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

For the problem of low safety reliability of the cooking appliance in the related art, a designer of the invention creatively finds, through a lot of researches, that the cooking appliance adopts an inflation mode to realize the lifting of the containing part in the related art, but the inflation structure is completely arranged in the liquid below the containing part, and is high in water pressure, so that the problem of air leakage is easily caused, the driving failure of the containing part is caused, the rice dripping process is stopped midway, the cooking effect is influenced, and the liquid can enter the inflation structure, so that the liquid is easily contacted with an electronic device, and safety accidents are caused.

In view of the above, the present inventors propose a cooking appliance with a new structure, which effectively improves the above problems. A cooking appliance 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

According to the cooking appliance 1 of the embodiment of the present invention, the cooking appliance 1 may be an electric cooker, an electric pressure cooker, an electric stewpan, an induction cooker or a health preserving pot, and the cooking appliance 1 is exemplified as an electric cooker in the present application, but the present invention is not limited to the scope of the present invention. After reading the description of the present application, it is obvious for a person skilled in the art to apply the cooking appliance 1 of the present application to an electric pressure cooker, an electric stewpan, an induction cooker, a health preserving pot, or the like, knowing the technical idea of the present application.

As shown in fig. 1 to 9, a cooking appliance 1 according to an embodiment of the present invention includes a body part 100, a holding part 200, and a pneumatic lifting device 300.

The cooking appliance 1 includes a body part 100, a holding part 200, and a pneumatic lifting device 300, and the body part 100 has a cooking cavity 101 therein. The accommodating part 200 is disposed in the cooking chamber 101. The pneumatic lifting device 300 has a lifting portion 310 (vertical direction is shown by arrow a in fig. 1) located below the containing portion 200, the pneumatic lifting device 300 is configured to drive the lifting portion 310 to lift by gas so as to enable the containing portion 200 to move up and down, and the gas inlet 301 and the gas outlet 302 of the pneumatic lifting device 300 are respectively located at the upper part of the cooking cavity 101.

Here, it should be understood that the container 200 can communicate with the cooking chamber 101 so that the liquid level inside the container 200 can be varied. The phrase "the air inlet 301 and the air outlet 302 are respectively located at the upper portion of the cooking chamber 101" may mean that the air inlet 301 and the air outlet 302 are provided in the upper space of the cooking chamber 101, or that the air inlet 301 and the air outlet 302 are provided on the wall surface of the cooking chamber 101. In some embodiments, the body 100 has an upper cover and a pot body, the upper cover is fitted over the pot body, and the air inlet 301 and the air outlet 302 may be provided on the upper cover.

According to the cooking appliance 1 of the embodiment of the invention, by arranging the main body part 100 and the containing part 200, the food can be placed in the containing part 200 and cooked in the cooking cavity 101, for example, rice can be placed in the containing part 200, water can be placed in the cooking cavity 101, and rice can be cooked in the cooking appliance 1, so that the cooking appliance 1 can cook the food conveniently, and the cooking effect of the cooking appliance 1 can be improved.

Further, by providing the pneumatic lifting device 300, the housing unit 200 can be driven by the pneumatic lifting device 300 to move up and down. Like this can change the liquid level in the portion of holding 200 in the culinary art process, be convenient for improve cooking utensil 1's culinary art effect, improve user's diet health nature. In addition, when the cooking utensil 1 drips rice, water can continuously wash the rice, so that sugar in the rice is washed away, and a user can not easily become fat after eating the rice.

In addition, the air inlet 301 and the air outlet 302 of the pneumatic lifting device 300 are respectively positioned at the upper part of the cooking cavity 101. Therefore, the risk of air leakage of the pneumatic lifting device 300 is reduced, and the working reliability of the pneumatic lifting device 300 is improved.

In some embodiments, the water level in the cooking cavity 101 is lower than the heights of the air inlet 301 and the air outlet 302, so that liquid can be prevented from entering the pneumatic lifting device 300 through the air inlet 301 and the air outlet 302, the sealing performance of the pneumatic lifting device 300 is improved, the working reliability and stability of the pneumatic lifting device 300 are improved, the working performance of the cooking appliance 1 is improved, and the use comfort and safety of a user are improved.

In some embodiments, the water level in the cooking cavity 101 is higher than the heights of the air inlet 301 and the air outlet 302, compared with a mode that the air inlet and the air outlet are arranged at the lower part of the cooking cavity, because the heights of the air inlet 301 and the air outlet 302 in water are higher, and the water pressures at the air inlet 301 and the air outlet 302 are lower, the sealing of the air inlet 301 and the air outlet 302 is convenient to realize, the possibility that liquid enters the pneumatic lifting device 300 through the air inlet 301 and the air outlet 302 is reduced, and the working reliability of the pneumatic lifting device 300 is improved.

Further, in the process of cooking dripping rice, the pneumatic lifting device 300 is required to drive the containing part 200 to move up and down, the air inlet 301 and the air outlet 302 are respectively positioned at the upper part of the cooking cavity 101, the possibility of air leakage of the air inlet 301 and the air outlet 302 can be reduced, thereby preventing the pneumatic lifting device 300 from losing efficacy on the drive of the containing part 200, preventing the dripping rice process from stopping midway and influencing the cooking effect, preventing liquid from entering the pneumatic lifting device 300 to contact with electronic devices, being convenient for improving the working reliability of the cooking appliance 1, prolonging the service life of the cooking appliance 1, avoiding safety accidents, and improving the use safety and convenience of users.

In addition, the air inlet 301 and the air outlet 302 of the pneumatic lifting device 300 are respectively positioned at the upper part of the cooking cavity 101, so that the pneumatic lifting device 300 is conveniently connected with other parts of the cooking appliance 1, the internal structure of the cooking appliance 1 is more reasonable, and the working reliability and stability of the cooking appliance 1 are improved.

Therefore, the cooking appliance 1 according to the embodiment of the present invention has the advantages of convenient up-and-down movement of the containing part, convenient use, good cooking effect, etc.

A cooking appliance 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

In some embodiments of the present invention, as shown in fig. 1 to 9, a cooking appliance 1 according to an embodiment of the present invention includes a body part 100, a holding part 200, and a pneumatic lifting device 300.

According to some embodiments of the present invention, as shown in fig. 3 to 5, the pneumatic lifting device 300 includes an air bag 320 and an air tube 330, the air bag 320 is disposed in the cooking cavity 101 and connected to the lifting portion 310, and the air bag 320 is capable of changing a volume by using air to lift the lifting portion 310. One end of the air tube 330 is connected to the air bladder 320 to supply air to the air bladder 320, and the other end of the air tube 330 extends to the upper portion of the body part 100 and is provided with an air inlet 301 and an air outlet 302. Therefore, the volume of the air bag 320 can be changed by utilizing air, the air bag 320 drives the lifting part 310 to lift, the up-and-down movement of the containing part 200 is realized, the air inlet 301 and the air outlet 302 can be conveniently formed, the air inlet 301 and the air outlet 302 are conveniently higher than the highest liquid level of liquid in the cooking cavity 101, and the liquid is prevented from entering the pneumatic lifting device 300 through the air inlet 301 and the air outlet 302.

Specifically, the lift portion 310 is integrated with the top wall of the airbag 320. Therefore, the production and processing of the lifting part 310 and the air bag 320 are facilitated, the assembly process of the cooking appliance 1 is simplified, the production efficiency of the cooking appliance 1 is improved, and the structural strength of the pneumatic lifting device 300 is improved.

Alternatively, as shown in fig. 3 to 5, the airbag 320 has a top wall 321 and a side peripheral wall 322, the side peripheral wall 322 is provided with a corrugated structure 323, and the corrugated structure 323 is switchable between a deployed state and a folded state when the airbag 320 is lifted and lowered. This facilitates the up-and-down movement of the air bag 320, thereby facilitating the driving of the accommodating part 200 to move up and down.

Specifically, as shown in fig. 3 to 5, the elevating portion 310 is disposed at an upper portion of the air bag 320, the air bag 320 has a bottom wall 324, the bottom wall 324 is supported on the bottom wall of the cooking cavity 101, and one end of the air tube 330 is connected to a side peripheral wall of the air bag 320. Therefore, the air bag 320 is convenient to install and arrange, the arrangement reliability of the air bag 320 is improved, and the air pipe 330 is convenient to communicate with the air bag 320.

Alternatively, the air bag 320 is snap-coupled to the body part 100 by a snap-coupling structure. In some embodiments, the snap-fit structure may be a snap and slot structure, with one of the bladder 320 and the body portion 100 having a snap and the other having a slot, the snap adapted to snap fit within the slot. In other embodiments, the clamping structure may be a retainer ring and a hook structure, one of the air bag 320 and the body part 100 has the retainer ring, and the other has a hook adapted to be hooked in the retainer ring. This improves the reliability of the arrangement of the airbag 320, and prevents the airbag 320 from being moved by the buoyancy. Meanwhile, the airbag 320 is conveniently disassembled and assembled so as to conveniently clean the airbag 320.

According to other embodiments of the present invention, as shown in fig. 6 to 7, the pneumatic lifting device 300 includes a base 340 and a gas pipe 330, wherein a gas chamber 341 is disposed in the base 340, an opening 342 is disposed at an upper portion of the gas chamber 341, the lifting part 310 is hermetically disposed at the opening 342, and the lifting part 310 can move up and down with respect to the base 340 using the gas in the gas chamber 341. One end of the air tube 330 is connected to the base 340, and the other end of the air tube 330 extends to the upper portion of the body portion 100 and is provided with an air inlet 301 and an air outlet 302. Not only be convenient for like this utilize gas drive lift portion 310 to reciprocate to lift portion 310 drives to hold portion 200 and reciprocates, can be convenient for moreover the formation of air inlet 301 and gas outlet 302, be convenient for make air inlet 301 and gas outlet 302 be higher than the highest liquid level of the liquid in the culinary art chamber 101, avoid liquid to get into pneumatic elevating gear 300 through air inlet 301 and gas outlet 302.

Specifically, as shown in fig. 6 to 7, the air chamber 341 includes a plurality of sub-chambers 343 distributed in a horizontal direction and a vent passage 344 connecting the two sub-chambers 343, an opening 342 is respectively provided at an upper portion of each sub-chamber 343, and the elevating portion 310 includes a plurality of sub-chambers arranged at the plurality of openings 342 in a one-to-one correspondence. So can make the atress that holds portion 200 more even, improve and hold portion 200 and reciprocate the stability of in-process, improve cooking utensil 1's operational reliability and stability.

More specifically, as shown in fig. 6 to 7, the lifting part 310 includes a lifting rod 311 and a driving head 312, and the lifting rod 311 is inserted in the opening 342. The driving head 312 is disposed at the upper end of the lifting rod 311 and adapted to drive the accommodating portion 200, the driving head 312 protrudes outward from the outer circumferential surface of the lifting rod 311, and when the lifting portion 310 moves downward to the lowest point, the driving head 312 abuts against the edge of the opening 342 to limit the lifting portion 310. Not only be convenient for like this utilize gas drive lift portion 310 to reciprocate, can utilize drive head 312 to carry on spacingly to lift portion 310 in addition, improve lift portion 310's removal accuracy, avoid lift portion 310 to get into the air cavity 341 completely in, be convenient for improve lift portion 310's removal reliability and stability.

Alternatively, as shown in fig. 6 to 7, a sealing member 400 for sealing a gap between the lifting part 310 and the base 340 is provided therebetween. Thus, the gap between the lifting part 310 and the base 340 can be sealed by the sealing member 400, the sealing effect of the air chamber 341 can be improved, and the working efficiency of the pneumatic lifting device 300 can be improved.

According to some embodiments of the present invention, as shown in fig. 3, the air tube 330 is bent, the air inlet 301 and the air outlet 302 are the same, and the fixing portion 110 for fixing the upper portion of the air tube 330 is disposed at the upper portion of the body portion 100. This facilitates the fixing and mounting of the air tube 330, which facilitates the achievement of the air inlet 301 and the air outlet 302 above the maximum level of the liquid in the cooking chamber 101.

Alternatively, the fixing part 110 is connected to an inner side surface of the body part 100 and configured as a boss structure protruding toward the inside of the cooking chamber 101. This improves the structural strength of the fixing portion 110 and improves the fixing reliability of the fixing portion 110 to the air tube 330.

Further, the fixing portion 110 has a clamping groove 111 adapted to be clamped and matched with the air pipe 330, the air pipe 330 is adapted to be clamped into the clamping groove 111, and the air inlet 301 is located above the fixing portion 110. This not only facilitates the fixing of the air tube 330 by the fixing portion 110, but also facilitates the detachment and installation of the air tube 330, and facilitates the cleaning of the air tube 330. Meanwhile, it is convenient for the air tube 330 to be connected with the air charging device. Meanwhile, the fixing part 110 can receive the pressure transmitted from the air pipe 330, thereby improving the structural reliability of the cooking appliance 1.

In some embodiments of the invention, at least one of the air inlet 301 and the air outlet 302 is configured as an elastically deformable elastic port. For example, the elastic opening may be a silicon opening or a rubber opening. This facilitates the improvement of the airtightness at the air inlet 301 and the air outlet 302, and improves the operational reliability of the pneumatic lifting device 300. Specifically, the pneumatic lifting device 300 is inflated and deflated by an electric inflation device. Therefore, the inflation efficiency of the pneumatic lifting device 300 can be improved, stable inflation of the pneumatic lifting device 300 is realized, and the working reliability of the pneumatic lifting device 300 is improved.

More specifically, as shown in fig. 3, the pneumatic lifting device 300 is connected to the electric inflating device through a self-provided air pipe 330 with a joint 331, an opening is formed at one end of the air pipe 330 to form an air inlet 301, the joint 331 is provided at the air inlet 301, an on-off valve capable of being opened and closed is further provided between the joint 331 and the air pipe 330, when the pneumatic lifting device 300 is inflated, the pneumatic lifting device 300 is inflated through the on-off valve, and when the pneumatic lifting device 300 is exhausted, the pneumatic lifting device 300 is exhausted through the on-off valve. Therefore, the on-off valve can be used for controlling the air intake and the air exhaust of the pneumatic lifting device 300, so that the air leakage from the air inlet 301 after the pneumatic lifting device 300 is inflated can be avoided, the tightness of the pneumatic lifting device 300 is improved, and when the pneumatic lifting device 300 exhausts, the pneumatic lifting device 300 can exhaust smoothly, and the air exhaust efficiency of the pneumatic lifting device 300 is improved.

Optionally, the on-off valve is a three-way valve having an exhaust port communicating with the atmosphere, a first air inlet communicating with the pneumatic lifting device 300, and a second air inlet communicating with the electric inflator, the three-way valve is switchable between an inflation state and an exhaust state, the first air inlet communicates with the second air inlet and the first air inlet is disconnected from the exhaust port when the three-way valve is in the inflation state, and the first air inlet communicates with the exhaust port and the first air inlet is disconnected from the second air inlet when the three-way valve is in the exhaust state. Therefore, the working state of the pneumatic lifting device 300 is conveniently controlled by the three-way valve, and the working reliability of the pneumatic lifting device 300 is improved.

Furthermore, the three-way valve is an electromagnetic valve, is in an inflation state when being charged, and is in an exhaust state when being powered off. Therefore, the working performance of the cooking appliance 1 is improved, even if power failure occurs suddenly, the pneumatic lifting device 300 can be naturally deflated, and the use safety and convenience of the cooking appliance 1 are improved.

Specifically, an openable and closable inflation switching valve is further provided between the electric inflator and the three-way valve, the inflation switching valve being opened when the pneumatic lifting device 300 is inflated, and the inflation switching valve being closed when the pneumatic lifting device 300 is completely inflated. Therefore, the on-off between the air charging device and the pneumatic lifting device 300 can be controlled by the air charging switching valve, and the reliability of function switching of the cooking appliance 1 is improved.

In some embodiments of the present invention, the body part 100 has an upper cover and a pot body, the upper cover is fitted over the pot body, the three-way valve is provided on the upper cover, and when the upper cover is fastened to the pot body, an extended port of one end of the three-way valve is in close contact with the air inlet 301 of the air bag 320 and transmits a pressure downward, and the pressure is transmitted to the fixing part 110.

Further, the on-off valve is an electromagnetic valve. Therefore, the electric control of the on-off valve can be realized, the on-off valve can be controlled conveniently, and the sensitivity and the accuracy of the on-off valve can be improved conveniently due to the high response speed of the electromagnetic valve, so that the reliability of function switching of the pneumatic lifting device 300 is improved.

Optionally, the cooking appliance 1 further comprises a detection device for detecting the amount of air inflation in the pneumatic lifting device 300, the detection device is in communication with the electric inflating device, and the electric inflating device stops working when the detection value of the detection device is greater than or equal to a predetermined value. Therefore, the working safety and reliability of the pneumatic lifting device 300 can be improved, the electric air charging device is prevented from charging air to the pneumatic lifting device 300 all the time, the pneumatic lifting device 300 is protected, the pneumatic lifting device 300 is prevented from being damaged, and the service life of the pneumatic lifting device 300 is prolonged.

Further, the detection device includes a timing unit for detecting the inflation time of the lifting unit 310, and the detection value is a time signal. Or the current detection unit is used for detecting the current of the inflator, and the detected value is a current signal. Or a position detecting unit for detecting the position of the housing part 200, the detection value being a position signal. This facilitates the setting of the detection means according to the actual situation, thereby facilitating the use of the detection means for protecting the pneumatic lifting device 300.

According to some embodiments of the present invention, as shown in fig. 1 and 2, the holding part 200 is provided with steam holes 231, the steam holes 231 are used to communicate the cooking cavity 101 with the inner space of the holding part 200, the holding part 200 includes a holding part peripheral wall 230 and a holding part bottom wall 220, the steam holes 231 include at least one of a peripheral wall steam hole 232 and a bottom wall steam hole 233, the peripheral wall steam hole 232 is provided in the holding part peripheral wall 230, and the bottom wall steam hole 233 is provided in the holding part bottom wall 220. Steam of being convenient for like this gets into through steam hole 231 and holds portion 200 to heating holding portion 200, cooking utensil 1 of being convenient for cooks the edible material that holds in portion 200, is convenient for change the liquid level that holds in portion 200, improves cooking utensil 1's culinary art effect

Alternatively, as shown in fig. 2, a flange 250 is provided on the top of the circumferential wall of the container part 200, and the flange 250 extends in a direction away from the container part 200. Further, the containing part 200 is supported on the upper portion of the body part 100 by the flange 250. The installation area of the containing part 200 and the body part 100 can be increased, the containing part 200 and the body part 100 can be assembled better, the installation and positioning of the containing part 200 are realized by the flanging 250, the reliability and the position accuracy of the containing part 200 are improved, the overall structural strength of the containing part 200 and the body part 100 is improved, and the sealing performance of the joint of the containing part 200 and the body part 100 can be ensured.

Specifically, as shown in fig. 2, the containing part 200 includes a containing part bottom wall 220 and a containing part peripheral wall 230, and at least a part of an upper portion of the containing part peripheral wall 230 in a circumferential direction thereof is bulged outward to form the protrusion 210. Further the production and processing of bulge 210 of being convenient for like this avoids setting up bulge 210 and causes the influence to the inner space who holds portion 200, is convenient for hold portion 200 and places more edible materials, improves the ability of holding of portion 200 to eating the material.

In some embodiments of the present invention, the protruding height of the protrusion 210 is smaller than the dimension of the protrusion 210 extending in the axial direction of the containing part 200. This not only is convenient for utilize the bulge 210 restriction to hold portion 200 for the inclination of this part 100, improves cooking utensil 1's culinary art reliability, can make in addition that portion 200 is inside to have more places the space, is convenient for hold portion 200 and places more edible materials, is further convenient for improve cooking utensil 1's culinary art ability.

Specifically, as shown in fig. 1, the lower edge of the protrusion 210 is configured as a rounded Z-shaped step structure 240. So not only be convenient for the formation of bulge 210, be convenient for wash cooking utensil 1, avoid holding portion 200 and produce the clearance dead angle, can reduce the stress concentration of bulge 210's lower border department moreover, avoid sharp-pointed structure to cause the harm to the user, improve user's safety in utilization. Meanwhile, the arc is more comfortable and beautiful, and the appearance performance of the cooking appliance 1 is improved conveniently.

Alternatively, at least a portion of the outer wall surface of the containing part 200 or at least a portion of the inner circumferential surface of the cooking chamber 101 is disposed in parallel with at least a portion of the outer circumferential surface of the protrusion 210. Portion 200 and culinary art chamber 101 cooperate so being convenient for, further be convenient for with portion 200 that holds smoothly put into culinary art chamber 101 in, be convenient for improve user's operation experience.

Specifically, the protrusion 210 has a dimension H, which is greater than or equal to 6 mm, extending in the axial direction of the accommodating part 200. Can guarantee like this that bulge 210 has sufficient size scope, be convenient for improve bulge 210's restriction effect, avoid holding portion 200 inclination too big and take place the card and die, further be convenient for improve cooking utensil 1's assembly effect and sealing performance.

More specifically, the axial dimension of the accommodating part 200 is H, and H is less than or equal to 0.5H. Thus, the size of the protruding portion 210 can be more reasonable and compact, which not only avoids the protruding portion 210 occupying too large space, but also is convenient for saving the material for manufacturing the protruding portion 210, and further is convenient for reducing the production cost of the cooking appliance 1.

According to an embodiment of the present invention, the cooking appliance 1 includes a body part 100, a containing part 200, and a pneumatic lifting device 300, wherein the body part 100 has a cooking cavity 101 therein. The accommodating part 200 is disposed in the cooking chamber 101. The pneumatic lifting device 300 has a lifting part 310 located below the containing part 200, the pneumatic lifting device 300 is configured to drive the lifting part 310 to be lifted by gas so that the containing part 200 can be moved up and down, and the gas inlet 301 and the gas outlet 302 of the pneumatic lifting device 300 are respectively located at the upper part of the cooking cavity 101.

The pneumatic lifting device 300 includes an air bag 320 and an air tube 330, the air bag 320 is disposed in the cooking cavity 101 and connected to the lifting portion 310, and the air bag 320 can change volume by using air to lift the lifting portion 310. One end of the air tube 330 is connected to the air bladder 320 to supply air to the air bladder 320, and the other end of the air tube 330 extends to the upper portion of the body part 100 and is provided with an air inlet 301 and an air outlet 302. The lifting part 310 is integrated with the top wall of the airbag 320. The side peripheral wall 322 of the airbag 320 is provided with a fold structure 323, and when the airbag 320 is lifted, the fold structure 323 can be switched between a deployed state and a folded state. The air bag 320 has a bottom wall 324, the bottom wall 324 is supported on the bottom wall of the cooking chamber 101, and one end of the air pipe 330 is connected to the side peripheral wall of the air bag 320.

The air pipe 330 is bent, the air inlet 301 and the air outlet 302 are the same, and the fixing part 110 for fixing the upper part of the air pipe 330 is provided on the upper part of the body part 100. The pneumatic lifting device 300 is inflated and deflated by an electric inflating device. The pneumatic lifting device 300 is connected with the electric inflating device through a self-arranged air pipe 330 with a joint 331, an air inlet 301 is formed at one end of the air pipe 330 in an opening mode, the joint 331 is arranged at the position of the air inlet 301, an openable on-off valve is further arranged between the joint 331 and the air pipe 330, the on-off valve is closed when the pneumatic lifting device 300 is inflated, and when the pneumatic lifting device 300 exhausts, the pneumatic lifting device 300 exhausts outwards through the on-off valve. The on-off valve is an electromagnetic valve. The cooking appliance 1 further comprises a detection device for detecting the amount of air charge in the pneumatic lifting device 300, the detection device is in communication with the electric inflating device, and the electric inflating device stops working when the detection value of the detection device is greater than or equal to a predetermined value. The detection device includes a timing unit for detecting the inflation time of the lifting unit 310, and the detection value is a time signal. Or the current detection unit is used for detecting the current of the inflator, and the detected value is a current signal. Or a position detecting unit for detecting the position of the housing part 200, the detection value being a position signal.

The holding part 200 is provided with a steam hole 231, the steam hole 231 is used for communicating the cooking cavity 101 and the inner space of the holding part 200, the holding part 200 includes a holding part peripheral wall 230 and a holding part bottom wall 220, and the steam hole 231 includes at least one of a peripheral wall steam hole 232 and a bottom wall steam hole 233. The top of the peripheral wall of the containing part 200 is provided with a flange 250, and the flange 250 extends in the direction away from the containing part 200. Further, the containing part 200 is supported at the upper portion of the body part 100 by the first flange 250.

According to another embodiment of the present invention, the cooking appliance 1 includes a main body 100, a holding part 200, and a pneumatic lifting device 300, wherein the main body 100 has a cooking cavity 101 therein. The accommodating part 200 is disposed in the cooking chamber 101. The pneumatic lifting device 300 has a lifting part 310 located below the containing part 200, the pneumatic lifting device 300 is configured to drive the lifting part 310 to be lifted by gas so that the containing part 200 can be moved up and down, and the gas inlet 301 and the gas outlet 302 of the pneumatic lifting device 300 are respectively located at the upper part of the cooking cavity 101.

The pneumatic lifting device 300 comprises a base 340 and an air pipe 330, wherein an air chamber 341 is arranged in the base 340, an opening 342 is arranged at the upper part of the air chamber 341, the lifting part 310 is hermetically arranged at the opening 342, and the lifting part 310 can move up and down relative to the base 340 by utilizing the air in the air chamber 341. One end of the air tube 330 is connected to the base 340, and the other end of the air tube 330 extends to the upper portion of the body portion 100 and is provided with an air inlet 301 and an air outlet 302. The air chamber 341 includes a plurality of sub-chambers 343 distributed in a horizontal direction and a vent passage 344 connecting the two sub-chambers 343, an opening 342 is provided at an upper portion of each sub-chamber 343, respectively, and the elevating part 310 includes a plurality of sub-chambers arranged at the plurality of openings 342 in a one-to-one correspondence. The lifting part 310 includes a lifting rod 311 and a driving head 312, and the lifting rod 311 is inserted in the opening 342. The driving head 312 is disposed at the upper end of the lifting rod 311 and adapted to drive the accommodating portion 200, the driving head 312 protrudes outward from the outer circumferential surface of the lifting rod 311, and when the lifting portion 310 moves downward to the lowest point, the driving head 312 abuts against the edge of the opening 342 to limit the lifting portion 310. A sealing member 400 for sealing a gap between the elevating part 310 and the base 340 is provided between the elevating part and the base 340.

Specifically, the cooking appliance 1 is provided with a contact switch, and when the pneumatic lifting device 300 is completely inflated, the contact switch is switched on and off by the containing part 200. The contact switch is disposed on the upper portion of the main body 100, the main body 100 is further provided with a push rod for driving the contact switch to switch on and off, and the containing portion 200 drives the contact switch through the push rod.

It should be understood that the phrase "the contact switch is disposed on the upper portion of the main body 100" may mean that the contact switch is disposed in the upper space of the cooking chamber 101, or that the contact switch is disposed on the wall surface of the cooking chamber 101. In some embodiments, the body portion 100 has an upper cover and a pan body, the upper cover fits over the pan body, and the contact switch may also be provided on the upper cover.

In some embodiments of the invention, the inventors of the present invention have discovered the following facts and problems: the existing electric cooker can realize the function of draining rice, after the rice is put into the electric cooker, the rice is firstly soaked in water, and the rice and water separation is realized after the rice is boiled to a boiling state for a period of time. However, the long-term soaking of rice in water can cause the rice produced by the electric rice cooker to be unfavorable for diabetics to eat, and can also cause the rice to have high sugar content, so that the user is easy to become fat after eating the rice.

In some embodiments of the present invention, the cooking device 1 is exemplified as an electric cooker.

Electric rice cooker can make water repeatedly erode rice through pneumatic elevating gear 300 in the water boiling stage, can further reduce the content of sugar in the rice, and the user eats the back of using up rice, can make the user be difficult to fatten, simultaneously, also can make rice be heated evenly, can make rice fully absorb moisture to can prevent that rice from pressing from both sides living, and then can promote the taste of rice.

From this, through this somatic part 100, hold portion 200 and the cooperation of pneumatic elevating gear 300, the rice is put into cooking utensil 1 back, and the rice at first can not soak in aqueous, and water boils the back gradually, and the rice just soaks in aqueous, can make the rice that cooking utensil 1 was made do benefit to the diabetes patient and eat to, cooking utensil 1 when dripping rice, water can constantly erode the rice, makes the sugar in the rice washed away, thereby can make the user eat and be difficult to become fat after the rice.

In some embodiments of the present invention, the cooking appliance 1 may be configured as an electric cooker, an electric pressure cooker, an electric stewpot, an electromagnetic oven or a health preserving pot, and such configuration can improve the working performance of the electric cooker, the electric pressure cooker, the electric stewpot, the electromagnetic oven or the health preserving pot, and can improve the market competitiveness of the electric cooker, the electric pressure cooker, the electric stewpot, the electromagnetic oven or the health preserving pot.

The control method of the cooking appliance 1 according to the embodiment of the present invention includes the steps of: in the cooking process of the cooking appliance 1, a current cooking stage of the cooking appliance 1 is determined, wherein the water level in the holding part 200 may be changed by the pneumatic lifting device 300, and when the water level in the holding part 200 reaches a certain height, the water level in the holding part 200 may be lowered by sensing of a time sensor or a signal sensor, so that the lowest point of the steam hole 231 may be movable between a first position lower than the liquid level of the cooking cavity 101 and a second position higher than the liquid level of the cooking cavity 101 in the first cooking mode of the cooking appliance 1.

A method of detecting a cooking appliance according to an embodiment of the present invention is described below. The cooking appliance 1 includes: this part of body 100, hold portion 200 and pneumatic elevating gear 300, cooking chamber 101 has in this part of body 100, it sets up in cooking chamber 101 to hold portion 200, pneumatic elevating gear 300 has the lift portion 310 that is located the below that holds portion 200, pneumatic elevating gear 300 sets up to utilize gas drive lift portion 310 to go up and down so that it reciprocates to hold portion 200, air inlet 301 and the gas outlet 302 of pneumatic elevating gear 300 are located the upper portion in cooking chamber 101 respectively, pneumatic elevating gear 300 fills the gassing through electric inflator, the detection method includes: operating the electric inflator to inflate the pneumatic lifting device 300; and detecting whether the pneumatic lifting device 300 completes inflation, if so, controlling the electric inflating device to stop working, and if not, keeping the electric inflating device in a working state. This facilitates protection of the pneumatic lifting device 300 and improves the operational reliability of the pneumatic lifting device 300.

Specifically, the cooking appliance 1 is preset with a predetermined value, a detection value is obtained by detecting the state of the cooking appliance 1, the predetermined value is compared with the detection value, and whether the pneumatic lifting device 300 is completely inflated is determined according to the comparison result. This facilitates control of the operating state of the pneumatic lifting device 300.

According to some embodiments of the present invention, the predetermined value is a predetermined position value of the holding part 200, and the detection value is a position detection value of the holding part 200, which is obtained by detecting the position of the holding part 200. This allows the operating state of the pneumatic lifting device 300 to be detected using the position detection value.

Further, the predetermined position value of the containing part 200 includes a predetermined height value of the containing part 200, the position detection value of the containing part 200 includes a detection height value of the containing part 200, the detected height value is obtained by detecting the height of the containing part 200, and when the detected height value is greater than the predetermined height value, it is determined that the pneumatic lifting device is completely inflated.

According to other embodiments of the present invention, the predetermined value is a predetermined current value of the electric inflator, the detection value is a current detection value of the electric inflator, the current detection value is obtained by detecting the current of the electric inflator, and when the current detection value is greater than or equal to the predetermined current value, it is determined that the inflation of the pneumatic lifting device is completed. Thus, the operating state of the pneumatic lifting device 300 can be detected using the detected value of the current.

Specifically, cooking utensil 1 is provided with contact switch, and when pneumatic elevating gear 300 aerifyd the completion, contact switch realized the switching under the effect of portion 200 that holds, and whether detection pneumatic elevating gear 300 aerifys the completion and includes: and detecting the state of the contact switch, judging that the pneumatic lifting device 300 is completely inflated if the state switching of the contact switch is detected, and judging that the pneumatic lifting device 300 is not completely inflated if the state switching of the contact switch is not detected.

More specifically, the contact switch is disposed on the upper portion of the main body 100, the main body 100 is further provided with a push rod for driving the contact switch to switch on and off, and the holding portion drives the contact switch through the push rod.

According to other embodiments of the present invention, the cooking appliance 1 is preset with a time preset value, and the time is counted when the electric inflating device starts to work, and when the counted time reaches the time preset value, it is determined that the inflation of the pneumatic lifting device 300 is completed. Thus, the working state of the pneumatic lifting device 300 can be detected by using the time detection value.

Other constructions and operations of the cooking appliance 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooking appliance, comprising:

a body portion having a cooking cavity therein;

the containing part is arranged in the cooking cavity;

pneumatic elevating gear, pneumatic elevating gear has and is located hold the lift portion of the below of portion, pneumatic elevating gear sets to utilize gas drive lift portion goes up and down so that it can reciprocate to hold the portion, pneumatic elevating gear's air inlet and gas outlet are located respectively the upper portion in culinary art chamber.

2. The cooking appliance of claim 1, wherein the pneumatic lifting device comprises:

the air bag is arranged in the cooking cavity and is connected with the lifting part, and the air bag can realize volume change by utilizing gas so as to drive the lifting part to lift;

an air tube, one end of which is connected with the air bag to supply air to the air bag, and the other end of which extends to the upper part of the body part and is provided with the air inlet and the air outlet.

3. The cooking appliance of claim 2, wherein the lift portion blends into a top wall of the bladder.

4. The cooking appliance of claim 2, wherein the bladder has a top wall and a side peripheral wall, the side peripheral wall being provided with a corrugated structure, the corrugated structure being switchable between a deployed state and a stowed state when the bladder is raised and lowered.

5. The cooking appliance of claim 2, wherein the elevating portion is provided at an upper portion of the air bag, the air bag has a bottom wall supported by a bottom wall of the cooking cavity, and one end of the air tube is connected to a side peripheral wall of the air bag.

6. The cooking appliance of claim 2, wherein the bladder is snap-connected to the body portion by a snap-fit arrangement.

7. The cooking appliance of claim 1, wherein the pneumatic lifting device comprises:

the lifting part is arranged at the opening in a sealing manner and can move up and down relative to the base by utilizing gas in the gas cavity;

and one end of the air pipe is connected with the base, and the other end of the air pipe extends to the upper part of the body part and is provided with the air inlet and the air outlet.

8. The cooking appliance according to claim 7, wherein the air chamber includes a plurality of sub-chambers distributed in a horizontal direction and a ventilation channel connecting the two sub-chambers, the opening is provided at an upper portion of each sub-chamber, and the elevating portion includes a plurality of openings provided at the plurality of openings in a one-to-one correspondence.

9. The cooking appliance of claim 8, wherein the lift comprises:

a lifting rod inserted in the opening;

the driving head is arranged at the upper end of the lifting rod and is suitable for driving the containing part, the driving head protrudes out of the outer peripheral surface of the lifting rod, and when the lifting part moves downwards to the lowest point, the driving head is abutted to the edge of the opening so as to limit the lifting part.

10. The cooking appliance of claim 7, wherein a seal is disposed between the lift and the base to seal a gap therebetween.

11. The cooking appliance according to claim 2 or 7, wherein the air tube is bent, the air inlet and the air outlet are the same, and the upper portion of the body is provided with a fixing portion for fixing the upper portion of the air tube.

12. The cooking appliance of claim 11, wherein the fixing portion is connected to an inner side surface of the body portion and is configured as a boss structure protruding toward the cooking cavity.

13. The cooking appliance of claim 12, wherein the fixing portion has a slot adapted to snap fit with the air tube, the air tube is adapted to snap fit into the slot, and the air inlet is located above the fixing portion.

14. The cooking appliance of claim 1, wherein at least one of the air inlet and the air outlet is configured as an elastically deformable elastic port.

15. The cooking appliance of claim 1, wherein the pneumatic lifting device is inflated and deflated by an electric inflation device.

16. The cooking utensil of claim 15, wherein the pneumatic lifting device is connected to the electric inflating device through a self-provided air pipe with a joint, an opening at one end of the air pipe forms the air inlet, the joint is arranged at the air inlet, an openable on-off valve is further arranged between the joint and the air pipe, when the pneumatic lifting device is inflated, the pneumatic lifting device is inflated through the on-off valve, and when the pneumatic lifting device is exhausted, the pneumatic lifting device is exhausted outwards through the on-off valve.

17. The cooking appliance of claim 16, wherein the on-off valve is a three-way valve having an exhaust port in communication with atmosphere, a first intake port in communication with the pneumatic lifting device, and a second intake port in communication with the electric inflator, the three-way valve being switchable between an inflated state in which the first intake port is in communication with the second intake port and the first intake port is disconnected from the exhaust port, and an exhausted state in which the first intake port is in communication with the exhaust port and the first intake port is disconnected from the second intake port.

18. The cooking appliance of claim 17, wherein the three-way valve is a solenoid valve, the three-way valve being in the inflated state when charged and the three-way valve being in the deflated state when de-energized.

19. The cooking appliance according to claim 17, wherein an openable and closable air-charging switching valve is further provided between the electric air-charging device and the three-way valve, the air-charging switching valve being opened when the pneumatic lifting device is charged with air, and the air-charging switching valve being closed when the pneumatic lifting device is completely charged with air.

20. The cooking appliance of claim 15, further comprising:

the detection device is used for detecting the inflation quantity in the pneumatic lifting device, the detection device is communicated with the electric inflation device, and the electric inflation device stops working when the detection value of the detection device is larger than or equal to a preset value.

21. The cooking appliance of claim 20, wherein the detection device comprises:

a timing unit for detecting the inflation time of the lifting part, wherein the detection value is a time signal, or,

the current detection unit is used for detecting the current of the inflator, and the detected value is a current signal; or,

and the position detection unit is used for detecting the position of the containing part, and the detection value is a position signal.

22. The cooking appliance according to claim 1, wherein the containing portion is provided with a steam hole for communicating the cooking chamber with an inner space of the containing portion, the containing portion includes a containing portion peripheral wall and a containing portion bottom wall, and the steam hole includes: at least one of the peripheral wall steam hole provided in the peripheral wall of the containing part and the bottom wall steam hole provided in the bottom wall of the containing part.

23. The cooking appliance according to claim 1, wherein a flange is provided on a top portion of the peripheral wall of the containing portion, and the flange extends in a direction away from the containing portion.

24. A method of detecting a cooking appliance, the cooking appliance comprising: the detection method comprises a body part, a containing part and a pneumatic lifting device, wherein a cooking cavity is formed in the body part, the containing part is arranged in the cooking cavity, the pneumatic lifting device is provided with a lifting part located below the containing part, the pneumatic lifting device is arranged to drive the lifting part to lift by utilizing gas so as to enable the containing part to move up and down, a gas inlet and a gas outlet of the pneumatic lifting device are respectively located at the upper part of the cooking cavity, the pneumatic lifting device is charged and discharged by an electric charging device, and the detection method comprises the following steps:

25. The cooking appliance detecting method according to claim 24,

the cooking utensil is preset with a preset value, a detection value is obtained by detecting the state of the cooking utensil, the preset value is compared with the detection value, and whether the pneumatic lifting device completes inflation is judged according to the comparison result.

26. The cooking utensil detecting method according to claim 25, wherein the predetermined value is a predetermined position value of the containing part, and the detection value is a position detection value of the containing part, the position detection value being obtained by detecting a position of the containing part.

27. The method of detecting a cooking utensil of claim 26 wherein the predetermined position value of the containing part comprises a predetermined height value of the containing part, the position detection value of the containing part comprises a detected height value of the containing part, the detected height value is obtained by detecting the height of the containing part, and when the detected height value is greater than the predetermined height value, it is determined that the pneumatic lifting device is completely inflated.

28. The method as claimed in claim 25, wherein the predetermined value is a predetermined current value of the electric inflator, the detection value is a detected current value of the electric inflator, the detected current value is obtained by detecting a current of the electric inflator, and when the detected current value is equal to or greater than the predetermined current value, it is determined that the pneumatic lifter is completely inflated.

29. The method for detecting the cooking utensil of claim 24, wherein the cooking utensil is provided with a contact switch, when the pneumatic lifting device completes the inflation, the contact switch is switched to open and close under the action of the containing part, and the detection of whether the pneumatic lifting device completes the inflation comprises the following steps:

30. The method for detecting a cooking utensil of claim 29 wherein the contact switch is provided at an upper portion of the main body, the main body further comprising a push rod for driving the contact switch to switch between open and closed states, and the holding portion drives the contact switch via the push rod.

31. The method for detecting cooking utensils of claim 24, wherein the cooking utensils have a preset time value, the electric air charging device is timed when starting to work, and when the timed time reaches the preset time value, the pneumatic lifting device is judged to be charged completely.