CN112273980B

CN112273980B - Electric rice cooker

Info

Publication number: CN112273980B
Application number: CN202011073184.6A
Authority: CN
Inventors: 杨华; 许炳欣; 郑秀谦; 肖靖鹏; 陈春恒; 戴建亮; 贾贵胜; 谢杰
Original assignee: Chunmi Technology Shanghai Co Ltd
Current assignee: Chunmi Technology Shanghai Co Ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2022-03-11
Anticipated expiration: 2040-10-09
Also published as: CN112273980A

Abstract

The invention provides an electric cooker, which comprises a cooker body, an inner cooker body and a cover body structure; the pot body is provided with an accommodating space; the inner pot body is accommodated in the accommodating space and is provided with a pot body and an abutting flange which is convexly arranged on the outer wall of the pot body; the cover body structure comprises a bearing part, a pot cover and a driving assembly, wherein the bearing part is movably connected to the pot body, the pot cover is detachably connected to the bearing part and can rotate relative to the bearing part, and the pot cover is used for sealing the inner pot body; the pot cover is provided with butt portion, and drive assembly locates on the carrier for the drive pot cover rotates for the carrier, so that butt flange and butt portion cooperation or separation. In the electric cooker of this embodiment, be provided with the drive assembly who connects respectively in the lid structure and hold the carrier, drive assembly can drive the lid corotation or the reversal to realize the cooperation or the separation between pot cover and the interior pot body, electric cooker's overall structure is compact, excellent in use effect.

Description

Electric rice cooker

Technical Field

The invention relates to the technical field of household appliances, in particular to an electric cooker.

Background

The electric cooker is a common cooking appliance in daily life, and in order to ensure safety, the cover body and the cooker body of the electric cooker need to be locked in the using process. The traditional electric cooker generally adopts manual operation to lock, and the operation handle is convexly arranged outside the electric cooker, so the whole volume of the electric cooker is larger, the electric cooker is not convenient to store, and the attractiveness of the electric cooker is also influenced. Therefore, it is necessary to design a new type of electric rice cooker to change the current situation.

Disclosure of Invention

In view of this, the present invention provides an electric rice cooker, which is used to solve the problem of large overall size of the conventional electric rice cooker.

The invention provides an electric cooker, comprising:

a pot body provided with an accommodating space;

the inner pot body is accommodated in the accommodating space and is provided with a pot body and an abutting flange which is convexly arranged on the outer wall of the pot body; and

the cover body structure comprises a bearing piece, a pot cover and a driving assembly, wherein the bearing piece is movably connected to the pot body, the pot cover is detachably connected to the bearing piece and can rotate relative to the bearing piece, and the pot cover is used for sealing the inner pot body; the pot cover is provided with an abutting part, and the driving assembly is arranged on the bearing part and used for driving the pot cover to rotate relative to the bearing part so as to enable the abutting flange to be matched with or separated from the abutting part.

In some embodiments of the present invention, the pot cover is provided with teeth arranged along a circumferential direction, the driving assembly includes a driving member and a gear, the gear is meshed with the teeth, and the driving member is configured to drive the gear to rotate so as to drive the pot cover to rotate relative to the bearing member.

In some embodiments of the invention, the drive member is a drive motor or a rotary cylinder.

In some embodiments of the present invention, the supporting member is provided with an installation groove, the cover structure further includes a locking block adapted to the installation groove, the locking block is disposed on the lid, the lid is detachably connected to the supporting member through the locking block, and the locking block has elasticity.

In some embodiments of the present invention, the mounting groove is arc-shaped, and a center of the mounting groove coincides with a center of the rotation direction of the pot cover.

In some embodiments of the invention, the mounting groove comprises an entry groove and a guide groove which are communicated, the entry groove has a size larger than the outer size of the locking block, the guide groove has a size smaller than the entry groove, and the outer size of the locking block is at least partially larger than the guide groove.

In some embodiments of the present invention, the supporting member is provided with a plurality of mounting grooves, and the mounting grooves are uniformly arranged on the supporting member along a circumferential direction and are not communicated with each other.

In some embodiments of the present invention, the number of the locking pieces is multiple, and each of the locking pieces corresponds to one of the mounting grooves.

In some embodiments of the present invention, a mounting cavity is defined within the cover assembly, and the cover structure further includes a vent assembly received within the mounting cavity.

In some embodiments of the invention, the pan cover is manufactured by a metal die casting method.

The embodiment of the invention has the following beneficial effects:

in the electric cooker of this embodiment, be provided with the drive assembly who connects respectively in the lid structure and hold the carrier, drive assembly can drive the lid corotation or the reversal to realize the cooperation or the separation between pot cover and the interior pot body, electric cooker's overall structure is compact, excellent in use effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a schematic cross-sectional view of an electric rice cooker according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of the rice cooker in the embodiment of the present invention;

FIG. 3 is a partially enlarged schematic view of the rice cooker in the embodiment of the present invention;

FIG. 4 is a schematic structural view of the inner pot body in the embodiment of the invention;

fig. 5 is a schematic structural view of a pot cover in an embodiment of the present invention;

figure 6 is a schematic view of the lid in a release position in an embodiment of the invention;

FIG. 7 is a schematic view of the structure of the pot cover in the abutting position according to the embodiment of the present invention;

FIG. 8 is a schematic view of a cover structure in partial section in an embodiment of the invention;

FIG. 9 is a partial schematic view of a cover construction in an embodiment of the invention;

FIG. 10 is a schematic structural diagram of a fixing base according to an embodiment of the present invention;

FIG. 11 is a schematic structural view of a valve housing in an embodiment of the invention;

FIG. 12 is a schematic view of the assembly of the valve housing and the mounting seat in an embodiment of the present invention;

in the figure:

10. an electric cooker; 100. a pot body; 200. an inner pot body; 210. a pan body; 220. an abutment flange; 300. a cover structure; 310. a carrier; 311. mounting grooves; 3111. entering a groove; 3112. a guide groove; 3113. a limiting convex part; 312. a mounting cavity; 320. a pot cover; 321. tooth profile; 322. an abutting portion; 330. a connecting member; 331. a cover plate; 332. a fixed seat; 3321. a limiting groove; 3322. positioning ribs; 340. a drive assembly; 341. a drive member; 342. a gear; 350. an exhaust assembly; 351. a valve housing body; 3511. positioning a groove; 3512. a plug; 3513. a convex plate; 352. an anti-blocking cover; 3521. blocking prevention of hole sites; 353. an exhaust member; 3531. an exhaust passage; 354. an adjustment member; 360. and (6) locking the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the present invention provides an electric cooker 10, which includes a cooker body 100, an inner cooker body 200, and a cover structure 300, wherein the cooker body 100 has an accommodating space and is used as an installation carrier: the inner pot body 200 is used for containing food materials; the cover structure 300 is movably connected to the pot body 100 and is used for sealing the inner pot body 200.

Specifically, the inner pot body 200 is accommodated in the accommodating space, and the inner pot body 200 has a pot body 210 and an abutting flange 220 protruding on the outer wall of the pot body 210; the cover structure 300 includes a supporting member 310 and a pot cover 320, wherein the supporting member 310 is movably connected to the pot body 100; the pot cover 320 is used for covering the pot body 210, the pot cover 320 is provided with an abutting part 322, and the pot cover 320 is movably connected to the bearing part 310 and can rotate relative to the bearing part 310; the pot cover 320 has at least an abutting position and a releasing position on the moving path, when the pot cover 320 moves to the abutting position, the abutting portion 322 and the abutting flange 220 are sequentially arranged in the direction from the pot body 100 to the cover structure 300, and the orthographic projection of the abutting portion 322 on the bearing member 310 at least partially overlaps with the abutting flange 220, and when the pot cover 320 moves to the releasing position, the abutting flange 220 is separated from the abutting portion 322.

In the electric cooker 10 of the present embodiment, the carrier 310 of the cover structure 300 is provided with the cover 320 capable of rotating relatively, the inner cooker body 200 is provided with the abutting flange 220, the cover 320 is provided with the abutting portion 322 matched with the abutting flange 220, and in the using process, the abutting portion 322 can be adapted to the abutting flange 220 by rotating the cover 320, so as to realize the locking function of the electric cooker 10, and the electric cooker 10 has a compact overall structure and a good using effect.

Specifically, as shown in fig. 6, in the release position, the orthographic projections of the abutting flange 220 and the abutting portion 322 on the bearing member 310 are not intersected with each other, and the cover structure 300 can be separated from the inner pot 200; when the lid 320 rotates relative to the carrier 310, as shown in fig. 7, the lid 320 is in the abutting position, and the orthogonal projections of the abutting flange 220 and the abutting portion 322 on the carrier 310 at least partially overlap, so as to lock the abutting flange 220 and the abutting portion 322.

Referring to fig. 2 and 5, in particular, in one embodiment, the pot cover 320 is provided with teeth 321 arranged along a circumferential direction; the driving assembly 340 is disposed on the carrier 310, and the driving assembly 340 is power connected to the pot cover 320 and is used for driving the pot cover 320 to rotate relative to the carrier 310.

In the electric cooker 10 of the present embodiment, the cover structure 300 is provided with the driving assembly 340 respectively connected to the lid 320 and the supporting member 310, and the driving assembly 340 can drive the lid 320 to rotate forward or backward, so as to realize the matching or separation between the lid 320 and the inner cooker body 200, and the electric cooker 10 has a compact overall structure and a good use effect.

In the present embodiment, the driving assembly 340 includes a driving member 341 and a gear 342, the gear 342 is engaged with the tooth 321, the driving member 341 is used for driving the gear 342 to rotate so as to drive the pot cover 320 to rotate relative to the carrier 310.

Specifically, the driving member 341 is a driving motor or a rotary cylinder. It is understood that in the present embodiment, the driving member 341 can adopt a driving device outputting a rotational driving force, and the driving gear 342 rotates to rotate the pot cover 320 relative to the carrier 310.

Referring to fig. 4 and 7, in the present embodiment, the driving assembly 340 is used for driving the pot cover 320 to rotate, so that the abutting flange 220 is engaged with or disengaged from the abutting portion 322.

Further, referring to fig. 2 and 3, the supporting member 310 is provided with a mounting groove 311, the cover structure 300 further includes a locking block 360 adapted to the mounting groove 311, the locking block 360 is disposed on the lid 320, the lid 320 is detachably connected to the supporting member 310 through the locking block 360, and the locking block 360 has elasticity.

When the rice cooker 10 of the present embodiment is disassembled, the locking block 360 with elasticity can be placed in the mounting groove 311, and in the process that the cooker cover 320 rotates relative to the bearing member 310, the locking block 360 can move in the mounting groove 311, and the mounting groove 311 can provide guiding and limiting effects for the locking block 360.

Specifically, in an embodiment, the mounting slot 311 is arc-shaped, and a center of the mounting slot 311 coincides with a center of the rotation direction of the pot cover 320. Therefore, in the rotating process of the pot cover 320, the locking block 360 can move along the mounting groove 311, and the mounting groove 311 can also provide a guiding function for the locking block 360, so that the pot cover 320 can rotate stably.

Referring to fig. 3, in one embodiment, the mounting groove 311 includes an entrance groove 3111 and a guide groove 3112 communicating with each other, the entrance groove 3111 having a size larger than an outer size of the lock block 360, and the guide groove 3112 having a size smaller than the entrance groove 3111, the outer size of the lock block 360 being at least partially larger than the guide groove 3112.

It can be understood that, when assembling the rice cooker 10 of the present embodiment, first, the locking piece 360 is corresponding to the entering slot 3111, since the size of the entering slot 3111 is larger than the locking piece 360, the locking piece 360 can smoothly enter the mounting slot 311 from the entering slot 3111 to realize the assembly, and then the locking piece 360 is slid into the guiding slot 3112, the pot cover 320 can rotate relative to the bearing member 310, and the guiding slot 3112 can guide the locking piece 360 in the moving process.

Further, mounting groove 311 is still equipped with spacing convex part 3113, and spacing convex part 3113 is located the guide way 3112 towards the one end of entering groove 3111, and spacing convex part 3113 is used for spacing the removal of locking piece 360 in guide way 3112.

Through being provided with spacing convex part 3113 near the one end that gets into groove 3111 at guide way 3112, go into guide way 3112 when locking piece 360 card after elastic deformation, the size of locking piece 360 this moment just is greater than spacing convex part 3113, when locking piece 360 removes to guide way 3112 near the one end that gets into groove 3111, spacing convex part 3113 can the butt in locking piece 360, avoids locking piece 360 to deviate from mounting groove 311 to realize the limit function of mounting groove 311.

Referring to fig. 2, the supporting member 310 is provided with a plurality of mounting grooves 311, and the mounting grooves 311 are uniformly arranged on the supporting member 310 along a circumferential direction and are not communicated with each other.

It can be understood that, by providing a plurality of mounting slots 311, the locking block 360 can be adapted to any number of mounting slots 311, and as the number of the locking block 360 and the mounting slot 311 increases, the stability of the lid 320 during rotation can be improved.

Specifically, in some embodiments, the number of the locking pieces 360 is multiple, and each locking piece 360 corresponds to one mounting slot 311. In this embodiment, the number of the locking pieces 360 may be set to be the same as the number of the mounting slots 311, that is, the locking pieces 360 correspond to the mounting slots 311 one to one, thereby achieving a stable guiding state; in other embodiments, the number of the locking pieces 360 may be smaller than that of the mounting slots 311, and in this embodiment, a guiding function may also be implemented. In one embodiment, the number of the mounting slots 311 is three. In another embodiment, the number of the mounting slots 311 may also be four, five or more, which is not limited herein.

In one embodiment, the lid 320 is manufactured by a metal die casting method. It can be understood that the pot cover 320 manufactured by the metal die casting method has good pressure resistance.

Referring to fig. 1, in some embodiments, the cover structure 300 further includes a vent assembly 350 disposed on the connecting member 330 and located in the mounting cavity 312.

In the cover structure 300 of the present embodiment, an installation cavity 312 is disposed between the carrier 310 and the connecting member 330, and the exhaust assembly 350 is disposed in the installation cavity 312, so as to reduce the overall volume of the cover structure 300. The rice cooker 10 with the cover structure 300 of the above embodiment can reduce the overall volume of the rice cooker 10 by disposing the exhaust assembly 350 inside the cover structure 300.

Referring to fig. 2 and 8, the exhaust assembly 350 includes a valve housing 351 and an exhaust member 353, the exhaust member 353 is disposed on the connecting member 330, the exhaust member 353 is provided with an exhaust passage 3531, and the exhaust passage 3531 penetrates through the connecting member 330 and is communicated with the mounting cavity 312; the valve housing 351 is movably connected to the exhaust member 353 for closing or opening the exhaust passage 3531.

Specifically, the valve cover body 351 further comprises a plug 3512, and when the valve cover body 351 blocks the exhaust channel 3531, the plug 3512 abuts against a port of the exhaust channel 3531; plug 3512 is preferably a heat resistant rubber.

Referring to fig. 9, the valve housing 351 is provided with a vent hole, and the vent hole is communicated with the exhaust channel 3531 when the valve housing 351 opens the exhaust channel 3531.

With the electric cooker 10 of the present embodiment, when the valve cover 351 closes the exhaust channel 3531, the exhaust hole is not communicated with the exhaust channel 3531, and at this time, the gas inside the electric cooker 10 cannot be exhausted through the exhaust channel 3531, and after the valve cover 351 moves away from the exhaust piece 353 until being separated from the exhaust piece 353, the gas inside the exhaust channel 3531 can be exhausted through the exhaust hole, thereby releasing the pressure inside the electric cooker 10.

Further, a plurality of exhaust holes are provided, and the plurality of exhaust holes are uniformly provided on the valve cover body 351 in the circumferential direction. It is understood that, by providing a plurality of exhaust holes, when exhaust is required, the exhaust efficiency of gas can be improved.

In order to avoid the food material from blocking the exhaust assembly 350 in the exhaust process, the exhaust assembly 350 further has a blocking prevention hole 3521 communicated with the exhaust channel 3531, and the blocking prevention hole 3521 is formed at one end of the exhaust member 353 away from the valve cover body 351.

In one embodiment, the exhaust assembly 350 further includes an anti-blocking cover 352, the anti-blocking hole 3521 is disposed on the anti-blocking cover 352, and the anti-blocking cover 352 is detachably connected to the exhaust member 353 and is disposed at one end of the exhaust member 353 and the valve housing 351.

It is understood that, in the present embodiment, by providing the anti-blocking cap 352 detachably connected, when maintenance is required on the anti-blocking cap 352, the anti-blocking cap 352 can be separated from the air exhausting member 353. Specifically, the anti-blocking cover 352 and the exhaust piece 353 can be detachably connected by a screw connection, a snap connection, or the like.

Referring to fig. 1, 8 and 9, in the present embodiment, the connecting element 330 includes a cover 331 and a fixing seat 332, the cover 331 is detachably connected to the carrier 310 and is used for covering the mounting cavity 312, the fixing seat 332 is disposed on a side of the cover 331 facing the carrier 310, the fixing seat 332 is used for carrying the exhaust assembly 350, and the valve housing 351 can rotate relative to the fixing seat 332.

From this setting, apron 331 can enclose with carrier 310 and close and form relative confined installation cavity 312, and at the culinary art in-process, the inside spot of eating the material spill of the pot body 200 alright block with by apron 331 to avoid polluting the space of installation cavity 312, avoid polluting exhaust subassembly 350, excellent in use effect.

Further, referring to fig. 10 to 12, a positioning groove 3511 is formed on an outer wall of the valve housing 351, and a positioning rib 3322 adapted to the positioning groove 3511 is arranged in the fixing seat 332; during the rotation of the valve housing 351, the positioning rib 3322 can abut against the inner wall of the positioning groove 3511 to drive the valve housing 351 to move away from the cover 331 or separate from the inner wall of the positioning groove 3511 to drive the valve housing 351 to move close to the cover 331.

When the rice cooker 10 of this embodiment is used, the inner wall of the positioning groove 3511 can abut against the positioning rib 3322 along with the rotation of the valve housing 351, and referring to fig. 11, since the positioning groove 3511 is substantially triangular, when the positioning rib 3322 abuts against the oblique edge of the positioning groove 3511, the valve housing 351 can be moved upward, so that the plug 3512 is separated from the port of the exhaust channel 3531, and the exhaust channel 3531 can smoothly convey gas.

Further, referring to fig. 9, the fixing assembly is provided with a limiting groove 3321, a protruding plate 3513 accommodated in the limiting groove 3321 is protruded from the outer wall of the valve housing 351, and the limiting groove 3321 at least partially surrounds the valve housing 351; the exhaust assembly 350 further includes an adjusting member 354, the adjusting member 354 is disposed on the cover plate 331, and the adjusting member 354 is used for driving the protruding plate 3513 to move in the limiting groove 3321.

It can be understood that, by providing the limiting groove 3321 matched with the protruding plate 3513 on the fixing base 332, the limiting groove 3321 can limit the movement of the protruding plate 3513, and further limit the rotation of the valve cover body 351, thereby preventing the valve cover body 351 from rotating excessively.

The embodiment also provides a control method of the electric cooker, which comprises the following steps: starting the electric cooker to heat and cook the inside of the electric cooker; acquiring the current pressure inside the electric cooker, and comparing the current pressure with a preset pressure; when the current pressure is greater than the preset pressure, the exhaust assembly is opened and exhausts, and when the current pressure is less than the preset pressure, the exhaust assembly is closed, so that the current pressure is increased.

By monitoring the pressure inside the electric cooker 10 in real time, the food material can be in an efficient cooking state, and the cooking speed of the food material can be increased.

Further, the control method further includes: before the electric cooker is started, the exhaust assembly is closed to seal the inner space of the electric cooker; the driving component controls the pot cover to rotate and is locked with the inner pot body.

The control method further comprises the following steps: after the electric cooker finishes cooking, acquiring the current temperature inside the electric cooker, and comparing the current temperature with a preset uncovering temperature; when the current temperature is not more than the preset uncovering temperature, the driving assembly controls the pot cover to rotate and separate from the inner pot body.

It can understand that just can open the pot cover when current temperature is not more than predetermineeing the temperature of uncapping, can avoid scalding the user's the condition appearing in the in-process of opening the pot cover on the one hand, also can open when the edible temperature falls to electric rice cooker 10 internal temperature in addition, through setting up the difference and predetermine the temperature of uncapping in order to satisfy different user demands.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims

1. An electric rice cooker, characterized in that, comprising:

a pot body provided with an accommodating space;

the cover body structure comprises a bearing piece, a pot cover and a driving assembly, wherein the bearing piece is movably connected to the pot body, the pot cover is detachably connected to the bearing piece and can rotate relative to the bearing piece, and the pot cover is used for sealing the inner pot body; the pot cover is provided with an abutting part, the driving assembly is arranged on the bearing part and is used for driving the pot cover to rotate relative to the bearing part so as to enable the abutting flange to be matched with or separated from the abutting part;

the cover body structure is internally provided with an installation cavity and also comprises an exhaust assembly accommodated in the installation cavity;

the exhaust assembly comprises a valve cover body and an exhaust piece, the exhaust piece is arranged on the connecting piece, an exhaust channel is formed in the exhaust piece, the exhaust channel penetrates through the connecting piece and is communicated with the mounting cavity, and the valve cover body is movably connected to the exhaust piece and used for plugging or opening the exhaust channel;

the valve cover body comprises a plug, an exhaust hole is formed in the valve cover body, and when the exhaust channel is opened by the valve cover body, the exhaust hole is communicated with the exhaust channel;

the connecting piece comprises a cover plate and a fixed seat, the cover plate is detachably connected to the bearing piece and used for sealing the installation cavity, the fixed seat is arranged on one side, facing the bearing piece, of the cover plate, the fixed seat is used for bearing the exhaust assembly, and the valve cover body can rotate relative to the fixed seat;

the outer wall of the valve cover body is provided with a positioning groove, a positioning rib matched with the positioning groove is arranged in the fixing seat, and the positioning rib can abut against the inner wall of the positioning groove in the rotating process of the valve cover body so as to drive the valve cover body to move towards the direction far away from the cover plate or separate from the inner wall of the positioning groove so as to drive the valve cover body to move towards the direction close to the cover plate;

the fixed seat is provided with a limiting groove, the outer wall of the valve cover body is convexly provided with a convex plate accommodated in the limiting groove, and the limiting groove is at least partially arranged around the valve cover body;

the exhaust assembly further comprises an adjusting piece, the adjusting piece is arranged on the cover plate and used for driving the convex plate to move in the limiting groove.

2. The rice cooker of claim 1, wherein the lid has teeth arranged along a circumferential direction, the driving assembly includes a driving member and a gear engaged with the teeth, the driving member is configured to drive the gear to rotate so as to rotate the lid relative to the carrier.

3. The rice cooker of claim 2, wherein the driving member is a driving motor or a rotary cylinder.

4. The rice cooker as claimed in claim 1, wherein the supporting member has a mounting groove, the cover structure further comprises a locking piece adapted to the mounting groove, the locking piece is disposed on the lid, the lid is detachably connected to the supporting member via the locking piece, and the locking piece has elasticity.

5. The rice cooker as claimed in claim 4, wherein the mounting groove is arc-shaped, and the center of the mounting groove coincides with the center of the rotation direction of the cover.

6. The rice cooker of claim 5, wherein the mounting groove comprises an entry groove and a guide groove which are communicated, the entry groove has a size larger than the outer size of the locking block, the guide groove has a size smaller than the entry groove, and the outer size of the locking block is at least partially larger than the guide groove;

the mounting groove still is equipped with spacing convex part, spacing convex part is located the guide way orientation the one end in entering groove, spacing convex part is used for right the locking piece is in removal in the guide way is spacing.

7. The rice cooker as claimed in claim 6, wherein the supporting member is provided with a plurality of mounting grooves, and the mounting grooves are uniformly arranged on the supporting member along a circumferential direction and are not communicated with each other.

8. The rice cooker of claim 7, wherein the number of the locking pieces is plural, and each locking piece corresponds to one of the mounting grooves.

9. The rice cooker of claim 1, wherein said cover is manufactured by a metal die casting method.