CN214548959U - Heating device and cooking utensil - Google Patents

Abstract

The utility model provides a heating device and cooking utensil. Heating device includes the base and locates connecting box on the base, heating device still includes coupling component, coupling component's bottom is in scalable setting in the connecting box, coupling component's top is in the opening part of seting up on the terminal surface of connecting box top stretches out or retracts. The compatibility of the heating device to different types and specifications of pots is improved, and the heating function of the heating device is fully utilized. Cooking utensil includes multi-functional pan and above-mentioned heating device at least, be equipped with the connecting seat on the multi-functional pan, the connecting seat is equipped with the coupling plug, the coupling plug be used for with coupling subassembly electricity among the heating device is connected. The problem of because of the coupling socket to the stopping of pan, lead to heating device to the compatibility of pan limited, cause heating device's heating function can not make full use of is solved.

Description

Heating device and cooking utensil

Technical Field

The embodiment of the utility model provides a relate to the domestic appliance technique, especially relate to a heating device and cooking utensil.

Background

Heating devices such as induction cookers and electric ceramic cookers have the advantages of high heating rate, no open fire, safe use and the like, and are common household electrical equipment.

Among the prior art, in order to satisfy the many-sided demand of user to the culinary art, some heating device have rather than supporting multi-functional pan, install including the stirring subassembly in this kind of multi-functional pan, turn over various electrical parts including stir-fry the subassembly. The coupling plug accessible that multi-functional pan was equipped with is pegged graft with the coupling socket that heating device was equipped with and is realized the electricity and be connected, can supply power and realize the signal transmission between electrical part and the heating device for the electrical part like this, makes heating device when heating multi-functional pan, and the electrical part can stir, turn over various complicated culinary art actions such as stir-fry to eating the material in the multi-functional pan.

However, for the convenience of use, the coupling socket generally protrudes from the upper surface of the heating device, but the coupling socket blocks the large-caliber cookware with a large caliber, so that the heating device cannot be used, the compatibility of the heating device with the cookware is limited, and the heating function of the heating device cannot be fully utilized.

SUMMERY OF THE UTILITY MODEL

The problems that a coupling socket of an existing heating device generally protrudes out of the upper surface of the heating device, a cooker with a large caliber cannot use the heating device due to blocking of the coupling socket, the compatibility of the heating device with the cooker is limited, and the heating function of the heating device cannot be fully utilized are solved.

The utility model provides a heating device, include the base, locate connecting box and coupling subassembly on the base, coupling subassembly's bottom is in scalable setting in the connecting box, coupling subassembly's top is in the opening part of seting up on the terminal surface of connecting box top stretches out or retracts.

The heating device that this embodiment provided, through including the base, locate connect box and coupling component on the base, coupling component's bottom is in scalable setting in the connection box, coupling component's top is in the opening part of seting up on the terminal surface of connection box top stretches out or retracts.

Like this when needs use heating device to heat the heavy-calibre pan that the bore is great (the pan lateral wall surpasss the connecting box in the horizontal direction when placing on the base), can with the coupling subassembly by the opening of seting up on the connecting box top terminal surface retract in the connecting box, make the great heavy-calibre pan of compatible bore that heating device can be fine cook.

When the multifunctional pot with the electric part, which is matched with the heating device, is needed to be used, the coupling assembly can be extended out from the opening formed in the end face of the top end of the connecting box, so that power can be supplied to the electric part of the multifunctional pot, and signal transmission between the electric part and the heating device can be realized. Therefore, the heating device provided by the embodiment can be used for heating no matter the multifunctional pot tool is used, or the pot tool with a large caliber is used, or the pot tool with a small caliber is used (when the pot tool is placed on the base, the side wall of the pot tool does not exceed the connecting box in the horizontal direction), so that the compatibility of the heating device to different types and specifications of pot tools is improved, and the heating function of the heating device is fully utilized.

Optionally, the heating device further comprises: a locking assembly for locking the coupling assembly within the connection box when the top end of the coupling assembly is retracted within the connection box.

After the top end of the coupling component is retracted into the connecting box, the coupling component can be locked in the connecting box by the locking component, so that the coupling component is prevented from extending out of the connecting box through an opening formed in the end face of the top end of the connecting box, and the coupling component is prevented from contacting and being damaged by cookware in a high-temperature state in the cooking process after extending out of the connecting box.

Optionally, the locking assembly includes a self-locking switch and a lock catch, one of the self-locking switch and the lock catch is connected to the bottom end of the coupling assembly, and the other of the self-locking switch and the lock catch is arranged on the inner bottom surface of the connection box; the self-locking switch is used for locking with the lock catch so as to lock the coupling component in the connecting box.

The locking component mainly comprises a self-locking switch and a lock catch, one of the self-locking switch and the lock catch is arranged at the bottom end of the coupling component, the other of the self-locking switch and the lock catch is arranged on the inner bottom surface of the connecting box, and the self-locking switch can be locked with or unlocked from the lock catch, so that the coupling component is fixed on or separated from the inner bottom surface of the connecting box.

Optionally, the latch is connected to the bottom end of the coupling component, one end of the self-locking switch is fixed to the inner bottom surface of the connecting box, and the other end of the self-locking switch extends towards the latch and is opposite to the latch.

Like this when needs use heating device to heat the great heavy-calibre pan of bore, can with the coupling subassembly by the opening that sets up on the connecting box top terminal surface retract in the connecting box to make the hasp of coupling subassembly bottom and the self-locking switch closure on the interior bottom surface of connecting box, thereby prevent that the coupling subassembly from stretching out outside the connecting box by the opening that sets up on the connecting box top terminal surface, avoid the coupling subassembly to stretch out outside the connecting box after and cook the pan contact under the high temperature state and damage under the in-process.

Optionally, the coupling assembly includes: the coupling socket is positioned on the end face of the top end of the movable support, and the bottom end of the movable support is arranged in the connecting box in a telescopic mode; the lock catch is connected to the bottom end of the movable support.

The movable support plays a role in fixing the coupling socket, the coupling socket is assembled on the end face of the top end of the movable support, and the lock catch is arranged at the bottom end of the movable support. When the coupling assembly is pressed down into the connecting box, the lock catch at the bottom end of the movable support is locked with the self-locking switch on the inner bottom surface of the connecting box, so that the coupling socket is prevented from extending out of the connecting box from an opening formed in the end surface of the top end of the connecting box, and the coupling socket and the movable support are prevented from contacting a cookware in a high-temperature state in a cooking process after extending out of the connecting box and being damaged.

Optionally, a limit flange is arranged on the side wall of the movable support, and the limit flange is used for limiting the outward extending height of the movable support.

Therefore, the part of the limiting flange can be blocked below the opening at the top end of the connecting box, when the movable support extends to a certain position, the limiting flange is blocked at the opening at the top end of the connecting box and cannot extend outwards, so that the movable support in an extending state is limited at a fixed position, and the movable support is prevented from being completely separated from the connecting box.

Optionally, an orthographic projection of the limiting flange towards the opening coincides with a top end inner wall portion of the connecting box.

In this way, a portion of the stop flange is blocked under the opening at the top end of the connection box, in such a way that the movable carriage is prevented from completely disengaging from the connection box.

Optionally, the heating device further comprises: and one end of the elastic piece is connected with the bottom end of the movable support, and the other end of the elastic piece is connected to the inner bottom surface of the connecting box.

Like this, the elastic component can play the effect that resets coupling assembly, and after exerting external force and pressing self-locking switch and make self-locking switch and hasp break away from, coupling assembly can rely on the elastic force that the elastic component was applyed coupling assembly to pop out outside the connecting box by the opening at connecting box top, makes coupling assembly's overhanging action easy operation, and convenient labour saving again of using.

Wherein, the elastic component can be the spring of connection between the bottom of movable support and the interior bottom surface of connecting box, and the quantity of spring is not restricted, can be the combination of a plurality of springs, also can be single spring that has great radial dimension to guarantee that elasticity is suitable and the movable support atress is even good, the life of assurance coupling subassembly that like this can be better. In this embodiment, the number of the springs is two, and the two springs are respectively located at two sides of the self-locking switch.

Optionally, the top end face of the connection box is vertically lower than the top end face of the base.

Like this when placing the great pan of bore on the heating device that this embodiment provided and heating, on the one hand the connecting box itself can not lead to the fact and block the pan, and on the other hand connecting box and pan surface are separated by one section distance, also can not contact the pan equally, and overheated pan can be avoided when the culinary art leads to the fact the damage to the connecting box.

The embodiment also provides a cooking appliance, which at least comprises a multifunctional cooker and any one of the heating devices; the multifunctional cooker is provided with a connecting seat, the connecting seat is provided with a coupling plug, and the coupling plug is used for being electrically connected with a coupling component in the heating device.

Like this heating device is when heating multi-functional pan, and the coupling plug of multi-functional pan can carry out the electricity with heating device's coupling subassembly and be connected the electricity and get the electricity, realizes the power supply to the electrical part that sets up on the multi-functional pan and heating device between signal transmission through the coupling plug.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a heating device according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a connection box according to an embodiment of the present invention;

fig. 3 is a first schematic structural diagram of a cooking appliance according to an embodiment of the present invention;

fig. 4 is a detailed view of the connection seat and the connection box according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cooking appliance according to an embodiment of the present invention.

Description of reference numerals:

10-a multifunctional pot;

11-a connecting seat;

12-a coupling plug;

20-a base;

30-a junction box;

40-a coupling component;

41-a movable support;

411-a position-defining flange;

42-a coupling socket;

50-a locking assembly;

51-self-locking switch;

52-locking and buckling;

60-an elastic member;

70-large-caliber cookware.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are embodiments of a unit of the present invention, rather than embodiments of a whole unit. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Fig. 1 is a schematic structural diagram of a heating device provided in an embodiment of the present invention, and fig. 2 is a schematic internal structural diagram of a connection box 30 provided in an embodiment of the present invention. Fig. 3 is a first structural schematic diagram of the cooking utensil provided by the embodiment of the present invention, fig. 4 is an assembly detail diagram of the connection seat 11 and the connection box 30 provided by the embodiment of the present invention, and fig. 5 is a second structural schematic diagram of the cooking utensil provided by the embodiment of the present invention.

In this embodiment, referring to fig. 1-2, the heating device includes a base 20, a connection box 30 disposed on the base 20, and a coupling assembly 40, wherein the connection box 30 is located on a side of the base 20 opposite to the operation keys. The bottom end of the coupling component 40 is telescopically arranged in the connecting box 30, and the top end of the coupling component 40 extends out or retracts in an opening formed on the top end face of the connecting box 30.

Referring to fig. 5, when a heating device is needed to heat a large-diameter pot 70 with a large diameter (the side wall of the pot exceeds the connection box 30 in the horizontal direction when the pot is placed on the base 20), the coupling assembly 40 can be retracted into the connection box 30 from an opening formed on the end surface of the top end of the connection box 30, so that the heating device can be well compatible with the large-diameter pot 70 with the large diameter to cook.

Referring to fig. 3 and 4, when the multifunctional pot 10 with an electric device matching with the heating device is needed, the coupling assembly 40 can be extended out from the opening formed on the end face of the top end of the connecting box 30, so as to supply power to the electric device of the multifunctional pot 10 and realize the signal transmission between the electric device and the heating device. Therefore, the heating device provided by the embodiment can be used for heating no matter the multifunctional pot 10 or the large-caliber pot 70 with larger caliber or the pot with smaller caliber (the side wall of the pot does not exceed the connecting box 30 in the horizontal direction when the pot is placed on the base 20), so that the compatibility of the heating device to different types and specifications of pots is improved, and the heating function of the heating device is fully utilized.

In this embodiment, referring to fig. 2, the heating device further includes: a locking assembly 50, the locking assembly 50 being used to lock the coupling assembly 40 in the junction box 30 when the top end of the coupling assembly 40 is retracted into the junction box 30.

After the top end of the coupling component 40 is retracted into the connection box 30, the coupling component 40 can be locked in the connection box 30 by using the lock catch 52, so that the coupling component 40 is prevented from extending out of the connection box 30 through an opening formed in the end face of the top end of the connection box 30, and the coupling component 40 is prevented from being damaged due to contact with a pot in a high-temperature state in a cooking process after extending out of the connection box 30.

In this embodiment, referring to fig. 2, the locking assembly 50 includes a self-locking switch 51 and a latch 52, one of the self-locking switch 51 and the latch 52 is connected to the bottom end of the coupling assembly 40, and the other of the self-locking switch 51 and the latch 52 is disposed on the inner bottom surface of the connection box 30; the latching switch 51 is adapted to latch with the latch 52 to lock the coupling assembly 40 within the junction box 30.

Thus, the locking assembly 50 mainly includes a self-locking switch 51 and a latch 52, one of the self-locking switch 51 and the latch 52 is disposed at the bottom end of the coupling assembly 40, the other of the self-locking switch 51 and the latch 52 is disposed on the inner bottom surface of the junction box 30, and the self-locking switch 51 can be locked with or unlocked from the latch 52, thereby fixing the coupling assembly 40 to the inner bottom surface of the junction box 30 or separating from the inner bottom surface of the junction box 30.

In this embodiment, referring to fig. 2, the latch 52 is connected to the bottom end of the coupling assembly 40, one end of the self-locking switch 51 is fixed on the inner bottom surface of the connection box 30, and the other end of the self-locking switch 51 extends toward the latch 52 and is opposite to the latch 52.

When a heating device is needed to heat the large-caliber cookware 70 with a large caliber, the coupling component 40 can be retracted into the connecting box 30 from the opening formed on the end face of the top end of the connecting box 30, and the lock catch 52 at the bottom end of the coupling component 40 is locked with the self-locking switch 51 on the inner bottom surface of the connecting box 30, so that the coupling component 40 is prevented from extending out of the connecting box 30 from the opening formed on the end face of the top end of the connecting box 30, and the coupling component 40 is prevented from contacting and being damaged with cookware in a high-temperature state in a cooking process after extending out of the connecting box 30.

In this embodiment, referring to fig. 2, the coupling assembly 40 includes: the movable support 41 and the coupling socket 42, the coupling socket 42 is located on the top end face of the movable support 41, and the bottom end of the movable support 41 is telescopically arranged in the connecting box 30; the latch 52 is attached to the bottom end of the movable bracket 41.

The movable bracket 41 plays a role of fixing the coupling socket 42, the coupling socket 42 is assembled on the top end face of the movable bracket 41, and the latch 52 is arranged at the bottom end of the movable bracket 41. When the coupling assembly 40 is pressed down into the connection box 30, the lock catch 52 at the bottom end of the movable support 41 is locked with the self-locking switch 51 on the inner bottom surface of the connection box 30, so that the coupling socket 42 is prevented from extending out of the connection box 30 from the opening formed on the top end surface of the connection box 30, and the coupling socket 42 and the movable support 41 are prevented from contacting and damaging a pot in a high-temperature state in a cooking process after extending out of the connection box 30.

In this embodiment, referring to fig. 2, a limiting flange 411 is disposed on a side wall of the movable bracket 41, and the limiting flange 411 is used for limiting the height of the movable bracket 41 extending outward.

The movement stroke of the movable bracket 41 can be always limited in the connection box 30 by the limit flange 411, and the movable bracket 41 is prevented from being completely separated from the connection box 30.

In this embodiment, as shown in fig. 2, an orthographic projection of the limiting flange 411 toward the opening coincides with a top end inner wall portion of the connection box 30.

Thus, the position-limiting flange 411 is partially blocked under the opening at the top end of the connecting box 30, and when the movable bracket 41 reaches a certain position during the extending action, the position-limiting flange 411 is blocked at the opening at the top end of the connecting box 30 and cannot extend continuously, so that the movable bracket 41 in the extending state is limited at a fixed position, and the movable bracket 41 is prevented from being completely separated from the connecting box 30.

In this embodiment, referring to fig. 2, the heating device further includes: and at least one elastic member 60, one end of the elastic member 60 being connected to the bottom end of the movable bracket 41, and the other end of the elastic member 60 being connected to the inner bottom surface of the connection box 30.

Thus, the elastic element 60 can reset the coupling assembly 40, and after the self-locking switch 51 is pressed by applying an external force to disengage the self-locking switch 51 from the latch 52, the coupling assembly 40 can be automatically ejected out of the connection box 30 from the opening at the top of the connection box 30 by means of the elastic force applied to the coupling assembly 40 by the elastic element 60, so that the extending action of the coupling assembly 40 is simple to operate, and the use is convenient and labor-saving.

The elastic member 60 may be a spring connected between the bottom end of the movable bracket 41 and the inner bottom surface of the connection box 30, the number of the springs is not limited, and the springs may be a combination of a plurality of springs, or a single spring with a larger radial dimension, so as to ensure that the elastic force is appropriate and the stress of the movable bracket 41 is uniform, which can better ensure the service life of the coupling assembly 40. In this embodiment, as shown in fig. 3 to 4, the number of the springs is two, and the two springs are respectively located at both sides of the self-locking switch 51.

In this embodiment, as shown in fig. 2, the top end surface of the connection box 30 is vertically lower than the top end surface of the base 20.

Like this when placing the great pan of bore on the heating device that this embodiment provided and heating, on the one hand connecting box 30 itself can not cause to block the pan, and on the other hand connecting box 30 and pan surface are separated by a distance, also can not contact the pan equally, and overheated pan can be avoided when the culinary art causes the damage to connecting box 30.

The application method of the heating device provided by the embodiment comprises the following steps:

when the heating device provided by this embodiment is required to heat the large-diameter cookware 70 with a larger diameter, a vertical downward pressure can be applied to the coupling assembly 40, so that the coupling assembly 40 is retracted into the connection box 30 from the opening formed on the top end surface of the connection box 30, and the coupling assembly 40 is prevented from extending out of the connection box 30 from the opening formed on the top end surface of the connection box 30 by locking the lock catch 52 at the bottom end of the coupling assembly 40 with the self-locking switch 51 on the inner bottom surface of the connection box 30.

When the heating device provided by the embodiment is needed to be used for the multifunctional cooker 10 with electric devices matched with the heating device, the vertical downward pressure can be applied to the coupling assembly 40 again, so that the lock catch 52 at the bottom end of the coupling assembly 40 is separated from the self-locking switch 51 on the inner bottom surface of the connecting box 30. The coupling assembly 40 extends from an opening formed on the top end surface of the connection box 30, and the coupling assembly 40 can supply power to the electric device of the multifunctional pot 10 and realize signal transmission between the electric device and the heating device. Therefore, the heating device provided by the embodiment can be used for heating no matter the multifunctional pot 10 or the large-caliber pot 70 with larger caliber or the pot with smaller caliber (the side wall of the pot does not exceed the connecting box 30 in the horizontal direction when the pot is placed on the base 20), so that the compatibility of the heating device to different types and specifications of pots is improved, and the heating function of the heating device is fully utilized.

If the multifunctional cooker 10 with the electric device matched with the heating device is needed to be used, the coupling component 40 can be extended out from the opening formed on the end face of the top end of the connecting box 30, so that power can be supplied to the electric device of the multifunctional cooker 10, and signal transmission between the electric device and the heating device can be realized. Therefore, the multifunctional pot 10, the large-caliber pot 70 with a large caliber (the side wall of the pot exceeds the connecting box 30 in the horizontal direction when the pot is placed on the base 20), or the pot with a small caliber (the side wall of the pot does not exceed the connecting box 30 in the horizontal direction when the pot is placed on the base 20) can be heated by using the heating device provided by the embodiment, so that the compatibility of the heating device to different types and specifications of pots is improved, and the heating function of the heating device is fully utilized.

Example two

Fig. 3 is a first schematic structural diagram of a cooking appliance provided by the embodiment of the present invention, and fig. 4 is an assembly detail view of the connecting seat 11 and the connecting box 30 provided by the embodiment of the present invention.

Referring to fig. 3-4, the present embodiment further provides a cooking appliance, which at least comprises a multifunctional pot 10 and the above-mentioned heating device; the multifunctional cooker 10 is provided with a connecting seat 11, the connecting seat 11 is provided with a coupling plug 12, and the coupling plug 12 is used for being electrically connected with a coupling component 40 in the heating device.

Like this heating device is when heating multi-functional pan 10, and the coupling plug 12 of multi-functional pan 10 can carry out the electricity with heating device's coupling subassembly 40 and be connected the electricity and get the electricity, realizes the power supply to the electrical part that sets up on the multi-functional pan 10 and signal transmission between the electrical part that sets up on the multi-functional pan 10 and the heating device through coupling plug 12.

EXAMPLE III

Fig. 5 is a schematic structural diagram of a cooking appliance according to an embodiment of the present invention.

Referring to fig. 5, in the cooking appliance provided in this embodiment, compared with the cooking appliance provided in the second embodiment, the multifunctional pot 10 can be replaced by a large-caliber pot 70 with a large caliber, when the large-caliber pot 70 with the large caliber is used, only the coupling component 40 needs to be pressed downward, the coupling component 40 is pressed into the connection box 30 and fixed by the locking component 50, so that the coupling component 40 can be prevented from blocking the placement of the large-caliber pot 70 with the large caliber, the coupling component 40 can also be prevented from contacting the pot with a high temperature, and the coupling component 40 can be protected.

In the description of the present invention, it is to be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A heating device comprising a base (20) and a connection box (30) provided on said base (20), characterized in that:

further comprising: the bottom end of the coupling component (40) is arranged in the connecting box (30) in a telescopic mode, and the top end of the coupling component (40) extends out of or retracts into an opening formed in the end face of the top end of the connecting box (30).

2. The heating device of claim 1, further comprising: a locking assembly (50), the locking assembly (50) for locking the coupling assembly (40) within the junction box (30) when the top end of the coupling assembly (40) is retracted within the junction box (30).

3. The heating device according to claim 2, characterized in that: the locking assembly (50) comprises a self-locking switch (51) and a lock catch (52), one of the self-locking switch (51) and the lock catch (52) is connected to the bottom end of the coupling assembly (40), and the other of the self-locking switch (51) and the lock catch (52) is arranged on the inner bottom surface of the connecting box (30);

the self-locking switch (51) is used for locking with the lock catch (52) to lock the coupling component (40) in the connection box (30).

4. The heating device according to claim 3, characterized in that: the lock catch (52) is connected to the bottom end of the coupling component (40), one end of the self-locking switch (51) is fixed to the inner bottom surface of the connecting box (30), and the other end of the self-locking switch (51) faces the lock catch (52) and extends to the right side of the lock catch (52).

5. The heating device according to claim 3 or 4, wherein the coupling assembly (40) comprises: the movable support (41) and the coupling socket (42), the coupling socket (42) is positioned on the end face of the top end of the movable support (41), and the bottom end of the movable support (41) is arranged in the connecting box (30) in a telescopic mode;

the lock catch (52) is connected to the bottom end of the movable support (41).

6. The heating device according to claim 5, wherein: the side wall surface of the movable support is provided with a limiting flange, and the limiting flange is used for limiting the outward extending height of the movable support.

7. The heating device according to claim 6, characterized in that: the orthographic projection of the limiting flange (411) towards the opening is overlapped with the top end inner wall part of the connecting box (30).

8. The heating device according to claim 5, wherein: further comprising: and one end of the elastic piece (60) is connected with the bottom end of the movable bracket (41), and the other end of the elastic piece (60) is connected to the inner bottom surface of the connecting box (30).

9. The heating device according to any one of claims 1 to 4, wherein: the top end face of the connecting box (30) is vertically lower than the top end face of the base (20).

10. A cooking appliance, characterized by: at least comprising a multifunctional pot (10) and a heating device according to any of the preceding claims 1-9;

be equipped with connecting seat (11) on multi-functional pan (10), connecting seat (11) are equipped with coupling plug (12), coupling plug (12) be used for with coupling subassembly (40) electricity among the heating device is connected.

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