CN213850074U - Electric pressure cooker with stable structure - Google Patents

Abstract

The utility model discloses a stable in structure's electric pressure cooker belongs to the kitchen household electrical appliances field, adds hot type electric pressure cooker and provides new assembly structure based on electromagnetic induction, makes its equipment back have better structural stability, and concrete scheme includes heat preservation cover and drum subassembly, and the heat preservation cover bottom is equipped with the drum fixing base, and the drum subassembly supports on the drum fixing base, and the drum subassembly includes electromagnetic wire coil and inner bag support piece, electromagnetic wire coil with drum fixing base fixed connection is equipped with the pilot hole on the electromagnetic wire coil, and inner bag support piece includes supporting part and spacing portion, and the supporting part runs through the pilot hole, centre gripping about electromagnetic wire coil and the drum fixing base spacing portion to the spacing inner bag support piece of axial. Electromagnetic wire coil and drum fixing base fixed connection, the electromagnetic wire coil is fixed more reliably, also makes inner bag support piece's spacing portion spacing between electromagnetic wire coil and drum fixing base reliably simultaneously, makes whole drum subassembly assembly back have better structural stability.

Description

Electric pressure cooker with stable structure

[ technical field ] A method for producing a semiconductor device

The utility model relates to a kitchen household electrical appliances field especially relates to stable in structure's electric pressure cooker.

[ background of the invention ]

At present, more and more household appliances adopt an electromagnetic heating technology, for example, cooking utensils such as an electric pressure cooker and an electric pressure cooker heated by electromagnetic induction, compared with a traditional heating plate heating mode, the electromagnetic heating technology has higher heating efficiency, and is more energy-saving and environment-friendly. The electromagnetic induction heating type electric pressure cooker comprises a cooker body and a cooker cover, wherein the cooker body comprises a base, a heat preservation cover, an inner container and an electromagnetic wire coil, the inner container is contained in the heat preservation cover, the electromagnetic wire coil is located below the inner container, and the electromagnetic wire coil is directly made of plastic materials and is easy to damage due to the fact that the pressure of the inner container is directly borne, so that an inner container supporting piece needs to be configured, the inner container is pressed to move downwards to act on the inner container supporting piece, and then the inner container supporting piece is transmitted to the heat preservation cover, and the electromagnetic wire coil is prevented from being directly pressed and damaged. The utility model discloses add hot type electric pressure cooker and provide new assembly structure based on above-mentioned electromagnetic induction, make its equipment after have better structural stability.

[ Utility model ] content

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the electric pressure cooker with stable structure.

In order to solve the technical problem, the utility model adopts the following technical scheme:

stable in structure's electric pressure cooker, including heat preservation cover and drum subassembly, heat preservation cover bottom is equipped with the drum fixing base, the drum subassembly support in on the drum fixing base, the drum subassembly includes electromagnetic wire coil and inner bag support piece, the electromagnetic wire coil with drum fixing base fixed connection, be equipped with the pilot hole on the electromagnetic wire coil, inner bag support piece includes supporting part and spacing portion, the supporting part runs through the pilot hole, the electromagnetic wire coil with the drum fixing base centre gripping from top to bottom spacing portion is spacing with the axial inner bag support piece.

In the electric pressure cooker with the stable structure, the electromagnetic wire coil is provided with the sleeve, the sleeve is provided with the assembling hole in a limited mode, and the limiting part is clamped between the sleeve and the wire coil fixing seat.

In the electric pressure cooker with stable structure, the sleeve is matched with the inner container supporting piece in a circumferential rotation stopping way.

In the electric pressure cooker with the stable structure, the lower end of the sleeve is provided with the rotation stopping boss, and the rotation stopping boss stops in the circumferential direction of the limiting part.

In the electric pressure cooker with stable structure, the supporting part is a cylindrical body with a non-circular section, and the shape of the assembling hole is matched with that of the supporting part.

In the electric pressure cooker with the stable structure, the electromagnetic wire coil is provided with the connecting column, and the connecting column is fixedly connected with the wire coil fixing seat through a screw.

In the electric pressure cooker with stable structure, the electric pressure cooker further comprises a base and a heat-insulating cover support, the heat-insulating cover support comprises a first connecting portion, a second connecting portion and a supporting portion for connecting the first connecting portion and the second connecting portion, the first connecting portion is fixedly connected with the base, and the second connecting portion is separated from the wire coil fixing seat and connected with the wire coil assembly.

In the electric pressure cooker with the stable structure, the second connecting part is fixedly connected with the liner supporting piece through a screw at intervals of the wire coil fixing seat.

In the electric pressure cooker with the stable structure, the wire coil fixing seat is provided with a sinking platform which is sunken towards the direction away from the base, and the second connecting part is fixed in the sinking platform.

In the electric pressure cooker with the stable structure, the inner container supporting piece is provided with the screw connecting holes, the sinking platform is correspondingly provided with the through holes, and the screw connecting holes deviate from the center of the inner container supporting piece in the direction away from the center of the wire coil assembly.

The utility model has the advantages that:

the utility model provides an among the electric pressure cooker, the drum subassembly includes electromagnetic wire coil and inner bag support piece, wherein, electromagnetic wire coil and drum fixing base fixed connection, fixed connection here means directly to establish mechanical connection relation (such as screw connection, rivet connection and so on) between electromagnetic wire coil and the drum fixing base, and the effort that mechanical connection produced directly acts on electromagnetic wire coil, enables electromagnetic wire coil to fix on the drum fixing base more reliably like this. The spacing portion of inner bag support piece is by centre gripping from top to bottom of electromagnetic wire coil and drum fixing base to it is spacing to realize inner bag support piece's axial, because the volume of electromagnetic wire coil will be a lot of than inner bag support piece, so inner bag support piece obtains the spacing effect of more reliable axial, when electromagnetic wire coil fixes on the drum fixing base reliably, inner bag support piece's spacing portion also can be spacing between electromagnetic wire coil and drum fixing base reliably, has better structural stability after making the assembly of whole drum subassembly.

Above-mentioned electric pressure cooker is when the equipment, accomplish the assembly of drum subassembly in the pilot hole of electromagnetic wire coil earlier usually, put into heat preservation cover prepositioning with the drum subassembly that assembles again, in order to operate conveniently when fixing the drum subassembly, can invert heat preservation cover (heat preservation cover mouth portion down) together with the drum subassembly, beat the screw operation by heat preservation cover bottom, because the spacing portion of inner bag support piece is spacing between electromagnetic wire coil and drum fixing base, prevented that inner bag support piece from falling out the pilot hole at above-mentioned assembling process, make things convenient for the equipment of above-mentioned part.

Further, the sleeve is matched with the inner container supporting piece in a circumferential rotation stopping mode. Inner bag support piece still can with be connected to other positions (for example drum fixing base) by electromagnetic wire coil and drum fixing base axial spacing basis, make inner bag support piece obtain higher fixed strength, under this condition, inner bag support piece is restricted circumferential direction in the sleeve, makes things convenient for follow-up being connected with other positions.

Further, the electric pressure cooker further comprises a base and a heat-preservation cover support, the heat-preservation cover support comprises a first connecting portion, a second connecting portion and a supporting portion for connecting the first connecting portion and the second connecting portion, the first connecting portion is fixedly connected with the base, and the second connecting portion is spaced from the wire coil fixing seat and connected with the wire coil assembly. The advantages of this assembly are: 1. the heat-insulating cover support belongs to a separately arranged component, and can be adaptively changed according to the requirements of the assembly structures of the wire coil assembly, the base and the heat-insulating cover, for example, the problem of connection adaptation of the heat-insulating cover support and bases of different machine types is solved by changing the first connecting part structure of the heat-insulating cover support, namely the problem of adaptation of the wire coil assembly, the heat-insulating cover and the base on different machine types is solved, and the universality of the base is improved; even on the same machine type, the assembly tolerance of the wire coil assembly, the heat-insulating cover and the base can be eliminated by adjusting the heat-insulating cover bracket, so that the convenience and the assembly quality of the product are improved; 2. the heat preservation cover support that sets up alone can not receive the restriction of drum subassembly or base material and use the material preparation of higher intensity, improves bearing strength of bearing structure to steady support drum subassembly and heat preservation cover, reinforcing product structural stability.

Furthermore, the second connecting portion is fixedly connected with the liner supporting piece through screws at intervals of the wire coil fixing seat. Inner bag support piece still passes through the screw connection with the second connecting portion on by electromagnetic wire coil and the spacing basis of drum fixing base axial, makes inner bag support piece obtain higher fixed strength.

Further, be equipped with on the drum fixing base to keeping away from the sunken heavy platform of base direction, second connecting portion are fixed in the heavy platform. The second connecting part is fixed in the sinking platform, so that the distance between the heat-insulating cover and the base can be shortened, and the height of the heat-insulating cover and the base after assembly is reduced; the sinking platform can also increase the structural strength of the wire coil fixing seat, so that the wire coil assembly can be supported more stably.

Furthermore, the inner container supporting piece is provided with a screw connecting hole, the sinking platform is correspondingly provided with a through hole, and the screw connecting hole deviates from the center of the inner container supporting piece in the direction away from the center of the wire coil assembly. When the screw connecting holes on the liner supporting piece deviate from the center of the liner supporting piece in the direction away from the center of the wire coil assembly, the positions of the corresponding through holes on the sinking platform also need to be correspondingly adjusted, so that the radial width of the sinking platform can be reduced, the radial size of the wire coil assembly is enlarged, a better electromagnetic induction heating effect is obtained, and enough space can be reserved between the through holes and the radial inner side of the sinking platform to match the fixation of the second connecting part.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

fig. 1 is a schematic structural view of an electric pressure cooker according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the heat-insulating cover according to an embodiment of the present invention.

Fig. 3 is an exploded view of a wire coil assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view of an assembly of an insulation cover and a wire coil assembly according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic view of the assembly of the base, the heat retaining cover and the wire coil assembly according to an embodiment of the present invention;

fig. 7 is a partially enlarged view of fig. 6 at B.

Reference numerals:

100 pan body, 110 base;

200 of a pot cover;

300 heat preservation covers, 310 openings, 320 wire coil fixing seats, 330 sinking platforms and 331 through holes;

400 electromagnetic wire coils, 410 wire coil seats, 420 wire coil brackets, 421 connecting columns, 422 sleeves, 423 assembling holes and 424 rotation stopping bosses;

500 liner supporting piece, 510 supporting part, 520 limiting part and 530 screw connecting hole;

600 heat preservation cover bracket, 610 first connecting part, 620 second connecting part;

700 of the inner container.

[ detailed description ] embodiments

The utility model provides a stable in structure's electric pressure cooker, including heat preservation cover and drum subassembly, heat preservation cover bottom is equipped with the drum fixing base, the drum subassembly support in on the drum fixing base, its characterized in that, the drum subassembly includes electromagnetic wire coil and inner bag support piece, electromagnetic wire coil with drum fixing base fixed connection, be equipped with the pilot hole on the electromagnetic wire coil, inner bag support piece includes supporting part and spacing portion, the supporting part runs through the pilot hole, electromagnetic wire coil with centre gripping about the drum fixing base spacing portion is spacing with the axial inner bag support piece.

In the electric pressure cooker, the electromagnetic wire coil is fixedly connected with the wire coil fixing seat, wherein the fixed connection means that a mechanical connection relationship (such as screw connection, rivet connection and the like) is directly established between the electromagnetic wire coil and the wire coil fixing seat, and acting force generated by the mechanical connection directly acts on the electromagnetic wire coil, so that the electromagnetic wire coil can be more reliably fixed on the wire coil fixing seat. The spacing portion of inner bag support piece is by centre gripping from top to bottom of electromagnetic wire coil and drum fixing base to it is spacing to realize inner bag support piece's axial, because the volume of electromagnetic wire coil will be a lot of than inner bag support piece, so inner bag support piece obtains the spacing effect of more reliable axial, when electromagnetic wire coil fixes on the drum fixing base reliably, inner bag support piece's spacing portion also can be spacing between electromagnetic wire coil and drum fixing base reliably, has better structural stability after making the assembly of whole drum subassembly.

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" 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 to simplify the description, but 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, 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, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-5, in the electric pressure cooker with stable structure provided in one embodiment of the present invention, including the cooker body 100 and the cooker cover 200, the cooker body 100 includes the heat preservation cover 300 and the wire coil assembly, the bottom of the heat preservation cover 300 is provided with the wire coil fixing seat 320, the wire coil assembly is supported on the wire coil fixing seat 320, exemplarily: the bottom of the heat-preserving cover 300 is provided with an opening 310, and a plurality of wire coil fixing seats 320 are arranged at intervals along the edge of the opening 310, wherein the wire coil fixing seats 320 are arranged in 3-5 numbers according to the fixing requirement of the wire coil assembly. The bottom of the heat-insulating cover 300 is provided with the opening 310, so that the internal space of the heat-insulating cover 300 is communicated with the space below the pot body 100, the heat dissipation space of the electromagnetic wire coil in the pot body 100 is increased, the heat dissipation of the electromagnetic wire coil is facilitated, the heat dissipation system can directly carry out forced heat dissipation on the wire coil assembly under the condition that the pot body 100 is provided with the heat dissipation system, and more favorable heat dissipation conditions are provided, so that the working reliability of the wire coil assembly is ensured, and the service life of a device is prolonged; in addition, the arrangement of the opening 310 also saves the material of the heat-insulating cover, thereby reducing the manufacturing cost of the heat-insulating cover.

To connect the wire coil assembly comprises an electromagnetic wire coil 400 and a liner support member 500 arranged on the electromagnetic wire coil 400, wherein the electromagnetic wire coil 400 comprises a wire coil bracket 420 and a wire coil seat 410, the wire coil bracket 420 and the wire coil seat 410 are formed in a split mode, and then are assembled into a whole through screw connection and other modes, an electromagnetic induction coil is wound on the wire coil seat 410, an assembly hole 423 matched with the liner support member 500 is formed in the wire coil bracket 420, and the liner support member 500 is inserted into the assembly hole 423. Of course, in other embodiments, the wire coil holder and the wire coil receptacle may be integrally formed.

The liner supporting member 500 is used for supporting the liner 700, and more specifically, when the electric pressure cooker is in a pressure cooking state, the liner 700 is pressed to move downwards, acts on the liner supporting member 500, and is transferred to the wire coil fixing seat 320 through the liner supporting member 500, so that the electromagnetic wire coil 400 is prevented from being directly pressed and damaged; because the electromagnetic wire coil 400 and the liner supporting piece 500 are both supported on the wire coil fixing seat 320, the liner supporting piece 500 and the electromagnetic wire coil 400 move synchronously, so that a stable and uniform gap between the electromagnetic wire coil 400 and the liner can be kept, the relative position of the liner and the electromagnetic wire coil 400 is kept unchanged, and the stability of electromagnetic induction heating is ensured.

In this embodiment, the electromagnetic wire coil 400 is fixedly connected to the wire coil holder 320, where the fixed connection means that a mechanical connection relationship (for example, screw connection, rivet connection, or the like) is directly established between the electromagnetic wire coil 400 and the wire coil holder 320, and an acting force generated by the mechanical connection directly acts on the electromagnetic wire coil 400, so that the electromagnetic wire coil 400 is more reliably fixed to the wire coil holder 320. The following are exemplary: the connection column 421 is arranged on the wire coil bracket 420 of the electromagnetic wire coil 400, and the screw penetrates through the wire coil fixing seat 320 and is locked on the connection column 421, so that the electromagnetic wire coil 400 is fixed on the wire coil fixing seat 320. The fixing mode of screw connection is simple, easy to operate and low in cost.

In this embodiment, the liner support 500 includes a support portion 510 and a limiting portion 520, the support portion 510 penetrates through the assembly hole 423, and the electromagnetic wire coil 400 and the wire coil fixing seat 320 vertically clamp the limiting portion 520 to axially limit the liner support 500. Because the volume of electromagnetic wire coil 400 is much bigger than that of liner support member 500, liner support member 500 obtains more reliable axial spacing effect, and when electromagnetic wire coil 400 is reliably fixed on wire coil fixing seat 320, spacing portion 520 of liner support member 500 can also be reliably limited between electromagnetic wire coil 400 and wire coil fixing seat 320, so that the whole wire coil assembly has better structural stability after being assembled. The following are exemplary: spacing portion 520 is the radially outstanding shaft shoulder in supporting portion 510 bottom, is equipped with sleeve 422 on the drum support 420, defines the pilot hole 423 on the sleeve 422, and the shaft shoulder is by the centre gripping between sleeve 422 and drum fixing base 320.

When the electric pressure cooker of this embodiment is assembled, firstly, the inner container support member 500 is inserted into the assembly hole 423 of the electromagnetic wire coil 400 to complete the assembly of the wire coil assembly, and then the assembled wire coil assembly is placed into the heat-insulating cover 300 for pre-positioning, in order to facilitate the operation when the wire coil assembly is fixed, the heat-insulating cover 300 and the wire coil assembly are inverted (the mouth of the heat-insulating cover is downward in the state shown in fig. 4), and the bottom of the heat-insulating cover 300 is screwed, for example, the above mentioned screw fixing connection between the electromagnetic wire coil 400 and the wire coil fixing seat 320, because the limiting portion 520 of the inner container support member 500 is limited between the electromagnetic wire coil 400 and the wire coil fixing seat 320, the inner container support member 500 is prevented from falling out of the assembly hole 423 in the above assembly process, and the assembly of the above components is facilitated.

Referring to fig. 6 and 7, in an embodiment of the present invention, the electric pressure cooker according to the above embodiment: the pot body 100 of the embodiment further comprises a base 110 and a heat preservation cover support 600, the heat preservation cover support 600 comprises a first connecting portion 610 and a second connecting portion 620, the first connecting portion 610 is fixedly connected with the base 110, and the second connecting portion 620 is connected with the wire coil assembly at intervals of the wire coil fixing seat 320, so that the second connecting portion 620 and the wire coil assembly are fixed on the wire coil fixing seat 320 in an internal and external clamping mode. Preferably: first connecting portion 610 passes through bolted connection with base 110, and second connecting portion 620 passes through bolted connection with the drum subassembly, and the fixed mode that adopts bolted connection is simple, easy operation, and is with low costs.

In this embodiment, the second connecting portion 620 has two kinds of modes of being connected with the wire coil assembly screw apart from the wire coil fixing seat 320:

first, as shown in fig. 7, the second connection portion 620 is fixedly connected to the liner support 500 via a screw via the wire coil fixing seat 320. Specifically, the method comprises the following steps: be equipped with screw connection hole 530 on inner bag support member 500, the screw is locked in inner bag support member 500's screw connection hole 530 after passing through second connecting portion 620 and drum fixing base 320 in proper order, and second connecting portion 620 and inner bag support member 500 are inside and outside the centre gripping drum fixing base 320 and are realized fixing. In this scheme, inner bag support piece 500 still passes through bolted connection with second connecting portion 620 on by electromagnetic wire coil 400 and the spacing basis of drum fixing base 320 axial, makes inner bag support piece 500 obtain higher fixed strength.

And the second connecting part is fixedly connected with the electromagnetic wire coil through screws at intervals of the wire coil fixing seat. Specifically, the method comprises the following steps: the connecting column is arranged on the wire coil bracket of the electromagnetic wire coil, the screw sequentially penetrates through the second connecting portion and the wire coil fixing seat and is locked on the connecting column, and the wire coil fixing seat is clamped between the inside and the outside of the second connecting portion and the electromagnetic wire coil to realize fixation.

In this embodiment, the heat-insulating cover holder 600 belongs to a separately arranged component, and can be adaptively changed according to the need of the assembly structure of the wire coil assembly, the base 110 and the heat-insulating cover 300, for example, by changing the structure of the first connecting portion 610 of the heat-insulating cover holder 600, the problem of connection adaptation between the heat-insulating cover holder 600 and bases 110 of different models is solved, that is, the problem of adaptation of the wire coil assembly, the heat-insulating cover 300 and the base 110 in different models is solved, and the universality of the base 110 is improved; even on the same model, the assembly tolerance of the wire coil assembly, the heat preservation cover 300 and the base 110 can be eliminated by adjusting the heat preservation cover bracket, and the convenience and the assembly quality of product assembly are improved.

The heat preservation cover bracket 600 which is arranged independently can be made of materials with higher strength without being limited by the materials of the wire coil assembly or the base 110, so that the bearing strength of the supporting structure is improved, the wire coil assembly and the heat preservation cover 300 are stably supported, and the structural stability of the product is enhanced. Preferably, the heat-insulating cover holder 600 of the present embodiment is formed by bending two sides of a metal sheet in opposite directions, for example, one side of the metal sheet is bent by 90 ° to form a first connecting portion 610, the other side of the metal sheet is bent by 90 ° in opposite directions to form a second connecting portion 620, and the heat-insulating cover holder 600 is substantially formed in a Z-shaped structure. The heat preservation cover support 600 that the sheetmetal bending type formed, structural strength is high to can stably support heat preservation cover 300 and drum subassembly, can also improve the screw joint strength of second connecting portion 620 and drum subassembly and first connecting portion 610 and base 110.

Referring to fig. 2, 6 and 7, in an embodiment of the present invention, the electric pressure cooker according to the above embodiment: the wire coil fixing seat 320 is provided with a sinking platform 330 which is recessed towards the direction away from the base 110, and the second connecting portion 620 is fixed in the sinking platform 330, for example, according to the foregoing embodiments: the sinking platform 330 is provided with a through hole 331 corresponding to the screw connection hole 530 on the liner support 500, a screw penetrates through the second connection part 620 and the through hole 331 in sequence and then is locked in the screw connection hole 530 of the liner support 500, and the sinking platform 330 is clamped between the inside and the outside of the second connection part 620 and the liner support 500 to realize fixation. The second connecting part 620 is fixed in the sinking platform 330, so that the distance between the heat-insulating cover 300 and the base 110 can be shortened, and the height of the heat-insulating cover 300 and the base 110 after being assembled is reduced; the sinker 330 may also increase the structural strength of the wire coil holder 320, allowing it to more smoothly support the wire coil assembly.

Preferably: the screw connection holes 530 on the liner support 500 deviate from the center of the liner support 500 in the direction away from the center of the wire coil assembly, and the corresponding positions of the through holes on the sunken table 330 also need to be adjusted accordingly, so that the radial width of the sunken table 330 can be reduced, the radial size of the wire coil assembly can be enlarged, a better electromagnetic induction heating effect can be obtained, and enough space can be left between the through holes and the radial inner side of the sunken table 330 to match the fixation of the second connection portions 620.

In the above embodiment, the insertion position of the liner support 500 in the assembly hole 423 is determined to ensure that the screw connection hole 530 of the liner support 500 after being installed deviates in a direction away from the center of the wire coil assembly, and for this reason, the liner support 500 is limited to rotate circumferentially in the sleeve 422, which not only prevents the liner support 500 from being installed in a wrong direction, but also facilitates the subsequent screw connection with the second connection portion 620. The circumferential rotation-stopping matching modes of the sleeve 422 and the liner support 500 include the following two modes:

first, referring to fig. 3, the rotation stop boss 424 is disposed at the lower end of the sleeve 422, and the rotation stop boss 424 stops in the circumferential direction of the limiting portion 520. More specifically: only when the supporting part 510 of the liner support 500 is inserted into the assembly hole 423 at a predetermined insertion position, the rotation stopping boss 424 can lead the limiting part 520 into a line stop in the circumferential direction, the screw connecting hole 530 is deviated in a direction away from the center of the wire coil assembly, and the liner support 500 cannot rotate in the assembly hole 423 due to the stop of the rotation stopping boss 424, so that the screw connecting hole 530 is aligned with the through hole 331 on the sinking platform 330, and the subsequent screw connection with the second connecting part 620 is facilitated. If the liner support 500 is not inserted into the assembly hole 423 at the predetermined insertion position, the rotation stopping boss 424 interferes with the limiting portion 520 in the axial direction of the liner support 500, so that the liner support 500 cannot be inserted in place, that is, the rotation stopping boss 424 cannot circumferentially stop the limiting portion 520.

And secondly, the supporting part of the liner supporting part is a cylindrical body with a non-circular section, and the shape of the assembling hole is matched with that of the cylindrical body. For example, the supporting part is a cylindrical body with a D-shaped section, the assembling hole is a D-shaped hole, the only inserting position of the supporting part relative to the assembling hole is determined, the supporting part cannot be inserted into the assembling hole at other positions, and after the supporting part is inserted into the assembling hole, the D-shaped matching structure limits the relative rotation of the supporting part, the screw connecting hole is aligned with the through hole in the sinking platform, and the subsequent screw connection with the second connecting part is facilitated.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. Stable in structure's electric pressure cooker, including heat preservation cover and drum subassembly, heat preservation cover bottom is equipped with the drum fixing base, the drum subassembly support in on the drum fixing base, its characterized in that, the drum subassembly includes electromagnetic wire coil and inner bag support piece, the electromagnetic wire coil with drum fixing base fixed connection, be equipped with the pilot hole on the electromagnetic wire coil, inner bag support piece includes supporting part and spacing portion, the supporting part runs through the pilot hole, the electromagnetic wire coil with drum fixing base centre gripping from top to bottom spacing portion is spacing with the axial inner bag support piece.

2. The electric pressure cooker with stable structure as claimed in claim 1, wherein a sleeve is provided on the electromagnetic wire coil, the sleeve defines the assembly hole, and the limiting portion is clamped between the sleeve and the wire coil fixing seat.

3. The structurally stable electric pressure cooker of claim 2, wherein said sleeve is circumferentially locked in rotation engagement with said inner support.

4. The electric pressure cooker with stable structure as claimed in claim 3, wherein the lower end of the sleeve is provided with a rotation stopping boss, and the rotation stopping boss stops in the circumferential direction of the limiting portion.

5. The structurally stable electric pressure cooker as claimed in claim 3, wherein the supporting portion is a cylinder with a non-circular cross-section, and the shape of the assembling hole is matched with that of the cylinder.

6. The structurally stable electric pressure cooker as claimed in one of claims 1 to 5, wherein the electromagnetic wire coil is provided with a connecting column, and the connecting column is fixedly connected with the wire coil fixing seat through a screw.

7. The electric pressure cooker with stable structure as claimed in one of claims 1 to 5, wherein the electric pressure cooker further comprises a base and a heat-insulating cover support, the heat-insulating cover support comprises a first connecting portion, a second connecting portion and a supporting portion for connecting the first connecting portion and the second connecting portion, the first connecting portion is fixedly connected with the base, and the second connecting portion is connected with the wire coil assembly at intervals of the wire coil fixing seat.

8. The structurally stable electric pressure cooker as claimed in claim 7, wherein the second connecting portion is fixedly connected with the inner container supporting member through screws with the wire coil fixing seat therebetween.

9. The electric pressure cooker with stable structure as claimed in claim 8, wherein the wire coil fixing seat is provided with a sinking platform which is recessed towards the direction away from the base, and the second connecting portion is fixed in the sinking platform.

10. The electric pressure cooker with stable structure as claimed in claim 9, wherein the inner container supporting member is provided with screw connection holes, the sinking platform is correspondingly provided with through holes, and the screw connection holes deviate from the center of the inner container supporting member in the direction away from the center of the wire coil assembly.

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