CN217565738U

CN217565738U - Inner pot die-casting blank, inner pot and cooking utensil

Info

Publication number: CN217565738U
Application number: CN202220542309.3U
Authority: CN
Inventors: 周伟平; 厉江; 李泽涌
Original assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Current assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Priority date: 2021-12-30
Filing date: 2022-03-11
Publication date: 2022-10-14
Anticipated expiration: 2032-03-11
Also published as: CN217547756U; CN217959709U

Abstract

The utility model discloses an interior pot die-casting blank, interior pot and cooking utensil, interior pot die-casting blank has the body part through die-casting shaping, the body part is around the rotatory geometric solid that has oral area and inner chamber that forms of central axis, the body part include the diapire and with the lateral wall that the diapire is connected, the lateral surface of lateral wall is equipped with die drawing inclination beta, just the lateral surface of lateral wall is cast and is marked regionally, the lateral wall mark regional department from the outside-in sunken, the mark is located in sunken, mark regional span in the direction of height is h, mark regional lower extreme the lateral surface of lateral wall reserves the thickness of waiting to get rid of the material on the horizontal direction and is an, mark regional upper end the lateral surface of lateral wall reserves the thickness of waiting to get rid of the material on the horizontal direction and is b, wherein b = a + h tan beta. The scheme has simple manufacturing process and low cost and can keep the mark area of the side wall complete.

Description

Inner pot die-casting blank, inner pot and cooking utensil

Technical Field

The utility model relates to a kitchen utensil field particularly relates to an interior pot die-casting blank, interior pot and cooking utensil.

Background

At present, a plurality of inner pots are formed in a die-casting mode, and the outer surface of the inner pot formed in a die-casting mode usually has a certain drawing inclination so as to be convenient for the inner pot to be separated from a die. After the inner pan is ejected from the mold, it is sometimes necessary to machine the outer surface of the sidewall to form the vertical edges. When the outer surface of the inner pot is die-cast with a mark, the mark is usually turned off.

Therefore, the utility model provides an interior pot die-casting blank, interior pot and cooking utensil to at least partly solve the problem among the prior art.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content of the present application does not imply any attempt to define the essential features and characteristics of the claimed solution, nor does it imply any attempt to determine the scope of the claimed solution.

In order to at least partially solve the above problem, according to a first aspect of the present invention, an inner pot die-cast blank is provided. The inner pot die-casting blank is provided with a body part formed by die-casting, the body part is a geometric body which is formed by rotating around a central axis and is provided with a mouth part and an inner cavity, the body part comprises a bottom wall and a side wall connected with the bottom wall, the outer side surface of the side wall is provided with a draft angle beta, a mark area is cast on the outer side surface of the side wall, a recess is formed in the mark area of the side wall from outside to inside, the mark is positioned in the recess, the span of the mark area in the height direction is h, the thickness of a material to be removed reserved on the outer side surface of the side wall at the lower end of the mark area in the horizontal direction is a, the thickness of the material to be removed on the outer side surface of the side wall at the upper end of the mark area in the horizontal direction is b, and b = a + h tan beta.

The inner pot die-casting blank of the scheme has the advantages of simple manufacturing process and low cost. In addition, by reserving the size ratio between the mark area and the outer side surface of the side wall during die casting according to the mode, the mark area can still be kept complete after turning off the redundant part of the outer side surface with the draft angle, and the appearance is simpler.

According to the utility model discloses a second aspect provides an interior pot, interior pot is through getting rid of the above the material manufacturing that interior pot die-casting blank reserved form, interior pot is the pot wall around the symmetry geometry that has upper portion opening and inner chamber that the central axis gyration formed, the pot wall include the diapire and with the lateral wall that the diapire is connected, the lateral wall has vertical lateral surface, the mark zone bit is in on the lateral surface of lateral wall. According to the inner pot of the scheme, the complete mark area can be kept, and the texture of the inner pot can be improved. And the manufacturing is simple and convenient, and the cost is lower.

Optionally, the outer side of the marking zone is substantially vertically distributed. The scheme can improve the texture of the inner pot, and is simple and convenient to manufacture and low in cost.

Optionally, the sign region is provided with characters and/or patterns, and the characters and/or patterns protrude from the bottom surface of the sign region. The scheme can improve the stereoscopic impression of the inner pot, and has simple and convenient manufacture and lower cost.

Optionally, on a longitudinal sectional view of the inner pan through the central axis, the wall thickness of the pan wall on one side of the central axis is distributed as follows: the pot mouth thickening section comprises a bottom thickening section, a middle thinning section and a pot mouth thickening section from the bottom to the mouth part in sequence.

According to the scheme, the wall thickness of the pot wall is distributed to sequentially comprise the bottom thickening section, the middle thinning section and the pot opening thickening section from the bottom to the opening, so that in the heating and boiling stage, the heating source is arranged at the bottom of the inner pot, and the middle thinning section of the pot wall is thinner than the pot walls above and below the pot wall, so that the temperature is quickly increased after heat is transferred, the temperature of the area is higher than that of the bottom area, the stirring and boiling from outside to inside can be realized, the rice grains are fully rolled, and the heating is more uniform.

In addition, the bottom thickened section directly absorbs heat and stores heat, so that the heating speed at the bottom wall is high and uniform, the middle thinned section forms the whole waist of the inner pot, the technical effects of upward heat transfer and slow outward heat dissipation are generated due to relative thinning of the wall thickness of the section, and then the heat energy which is finally transferred from the bottom thickened section to the upper part of the inner pot through the middle thinned section is absorbed and collected at the pot mouth thickened section. According to the inner pot with the design, in the cooking process, the heat stored in the pot opening thickening section is continuously released, the temperature of the cooking space formed by the surrounding of the pot opening thickening section is heated by the pot opening thickening section in an overlapping mode, the heat of food in cooking/heat preservation at the lower portion of the space is indirectly assisted to be maintained, if rice is cooked, the temperature of the top layer of the rice can be increased, aroma is increased, and the generation of inner cover condensate water can be effectively reduced.

Optionally, the side wall includes a first wall, a second wall and a third wall connected in sequence, wherein the first wall is connected between the second wall and the bottom wall and is configured as a gently arc wall protruding outwards, and the third wall is connected to the upper end of the second wall and encloses the mouth of the inner pan.

This scheme can form outside convex backward flow space in the adherence department of first wall, can guarantee that the comdenstion water is even in first wall department backward flow, avoids gathering at the bottom to the uniformity of the whole moisture content of rice in the pot in can promoting guarantees the taste of rice.

Optionally, the flag region is disposed on the second wall, and a height H of the flag region is smaller than a height H of the second wall. The scheme can improve the texture of the inner pot, and has the advantages of simple and convenient manufacture and lower cost.

Optionally, the thickness of the bottom wall is greater than the thickness of the first wall, the thickness of the third wall is greater than the thickness of the second wall, the second wall has a first end connected with the first wall and a second end connected with the third wall, the wall thickness of the first end is greater than the wall thickness of the second end.

This scheme is greater than the wall thickness of second end through the wall thickness that makes the first end of second wall, can make the heat of the region that first wall corresponds transmit to the side of interior pot fast, is favorable to the heating even, and the wall thickness of second end is thinner relatively can reduce the ascending transmission of heat for heat can concentrated heating rice, the increasing of thermal efficiency.

Optionally, the thickness of the second wall gradually increases from top to bottom. The scheme can be more convenient for processing and manufacturing the inner pot.

Optionally, the second wall has an inner surface sloping from top to bottom towards the interior of the inner pan and an outer surface configured as a vertical surface. This scheme can avoid directly dripping on rice when the comdenstion water refluxes, can be so that the comdenstion water evaporates into vapor through the high temperature of second wall fast.

Optionally, the wall thickness t21 of the first end satisfies: t21 is more than or equal to 2mm and less than or equal to 4mm. The scheme can enable the heat of the area corresponding to the first wall to be rapidly transferred to the side face of the inner pot, and heating uniformity is facilitated.

Optionally, the relationship between the thickness t0 of the bottom wall and the thickness t1 of the first wall satisfies t0/2 < t1 < t0.

Optionally, t0 is 3mm ≦ 6mm, and/or t1 is 1.5mm ≦ 2.5mm.

Above-mentioned scheme makes the thickness of first wall thinner relatively, but rapid heating up after being heated, forms the regional temperature that first wall corresponds and is high and the low situation of the regional temperature that the diapire corresponds, can form the stirring boiling of outside-in from this for the rice grain fully rolls, is heated more evenly.

Optionally, the thickness t3 of the third wall satisfies: t3 is greater than or equal to 6mm and less than or equal to 12mm, and/or the height H of the third wall satisfies: h is more than or equal to 10mm and less than or equal to 30mm. This scheme can improve the thickness of pot mouth portion to can store the heat in the region that the third wall corresponds, the heat of its storage is sustained to be released and can be improved the temperature on rice top layer, is favorable to the fragtant.

According to a third aspect of the present invention, there is provided a cooking appliance, comprising:

a pot body comprising the inner pot of any one of the above; and

the lid, the lid can set up with opening and shutting on the a kind of deep pot body to can the lid with constitute the culinary art space between the interior pot.

The utility model discloses a cooking utensil, interior pot have sunken mark region, can promote the feel of interior pot. And the manufacturing is simple and convenient, and the cost is lower.

In addition, through the thickness change of the bottom wall and the side wall of the inner pot, the effects of high and uniform bottom heating speed, slow waist heat dissipation and heat storage at the opening part can be achieved.

Specifically, in the stage of heating and boiling, the first wall is relatively thin in thickness, and can be heated quickly to form the situation that the temperature of the area corresponding to the first wall is high and the temperature of the area corresponding to the bottom wall is low, so that stirring and boiling from outside to inside can be formed, rice grains can be rolled sufficiently, and heating is more uniform. And in the stewing stage, part of heat is transferred to the area corresponding to the third wall through the area corresponding to the second wall, the heat is stored in the area corresponding to the third wall, and the stored heat is continuously released to improve the temperature of the top layer of the rice, so that the flavor is enhanced.

In addition, through making the wall thickness of the first end of second wall be greater than the wall thickness of second end, can make the heat of the region that first wall corresponds transmit to the side of interior pot fast, be favorable to heating evenly, and the wall thickness of second end is thinner relatively can reduce the ascending transmission of heat for the heat can concentrate heating rice, and the increasing heat efficiency, and can reduce the production of the interior lid on the comdenstion water in the lid effectively.

Drawings

The following drawings of the utility model are used as part of the utility model for understanding the utility model. There are shown in the drawings, embodiments and descriptions thereof, for illustrating the principles of the invention.

In the drawings:

fig. 1 is a schematic view of an inner pot according to a preferred embodiment of the present invention;

fig. 2 is a schematic longitudinal section of an inner pot die cast blank after die casting and before turning;

fig. 3 is a partially enlarged schematic view of a portion B in fig. 2;

FIG. 4 is a schematic longitudinal cross-sectional view of the inner pot die cast blank of FIG. 2 after turning (i.e., the final formed inner pot);

fig. 5 is a schematic longitudinal sectional view of an inner pan through a central axis according to a preferred embodiment of the present invention;

fig. 6 is another schematic sectional view of an inner pot according to a preferred embodiment of the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of the embodiments of the present invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. It should be noted that ordinal numbers such as "first" and "second" are used in the present application for identification only, and do not have any other meanings, such as a specific order. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component". The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for illustrative purposes only and are not limiting.

The utility model discloses a manufacturing method of an inner pot, the inner pot and a cooking utensil. The cooking appliance of the utility model can be an electric cooker, an electric pressure cooker or other electric heating appliances, and according to the utility model discloses a cooking appliance can also have various functions such as cooking porridge except having the function of cooking rice.

The cooking appliance includes a pot body (not shown) and a lid body (not shown). The pot body is substantially in a rounded rectangular parallelepiped shape and has a cylindrical inner pot accommodating portion. The inner pot 100 may be configured to be freely put into or taken out of the inner pot receiving part to facilitate the cleaning of the inner pot 100. The inner pot 100 is made of a metal material for containing a material to be heated, such as rice, soup, etc. The cover body can be covered on the pot body to form a cooking space between the cover body and the inner pot 100. The cover body includes an inner cover, also known as a removable cover, which is removably mounted on the cover body to facilitate removal and cleaning at any time.

The cooking appliance further includes a heating means for heating the inner pot 100. In order to be able to accurately sense the temperature, the cooking appliance further includes a bottom temperature sensor and a top temperature sensor for sensing the temperatures of the liquid and the steam in the inner pot 100, respectively. The cooking appliance further comprises a control device electrically connected to the bottom temperature sensor and the top temperature sensor. The bottom temperature sensor and the top temperature sensor may be thermistors. The bottom temperature sensor and the top temperature sensor are both connected to the control device of the cooking appliance to feed back sensed temperature data to the control device. In one example, the control device may be an MCU.

Referring to fig. 1, the inner pot 100 may be a symmetrical geometry with an upper opening and an inner cavity formed by the revolution of the pot wall about a central axis. The inner pot 100 according to the preferred embodiment of the present invention includes a bottom wall 110 and a side wall 120 connected to the bottom wall 110. The inner pot 100 may be made of aluminum or aluminum alloy.

The bottom wall 110 forms a placement portion. As shown in fig. 4 and 5, the bottom wall 110 is configured as a straight line segment extending in a radial direction of the inner pot 100 so as to allow the inner pot 100 to be smoothly placed after being taken out. It will be appreciated that in other embodiments not shown, the bottom wall 110 may also be provided with a slight upward concavity at its center.

The sidewall 120 includes a first wall 121, a second wall 122, and a third wall 123 connected in sequence. Wherein the second wall 122 is connected between the first wall 121 and the third wall 123. The first wall 121 is connected between the second wall 122 and the bottom wall 110 and is configured as a gentle arc-shaped wall protruding outwards, and the scheme can form a backflow space protruding outwards at the position of the wall of the first wall 121, so that the backflow uniformity of condensed water at the position of the first wall 121 can be ensured, the gathering at the bottom is avoided, the consistency of the integral water content of rice in the inner pot 100 can be improved, and the taste of the rice is ensured. The third wall 123 is connected to the upper end of the second wall 122 and encloses the mouth of the inner pot 100.

As shown in fig. 5 and 6, on a longitudinal sectional view of the inner pot 100 through its central axis a, the wall thickness distribution of the pot wall on the side of the central axis a is: the pot mouth thickening section comprises a bottom thickening section, a middle thinning section and a pot mouth thickening section from the bottom to the mouth part in sequence. The bottom thickened section mainly refers to the bottom wall 110, the middle thinned section mainly refers to the first wall 121 and the second wall 112, and the pot mouth thickened section mainly refers to the third wall 123.

Further, the thickness of diapire 110 is greater than the thickness of first wall 121, and the thickness of third wall 123 is greater than the thickness of second wall 122 to can make interior pot 100 wholly from last to showing thick-thin-thick form down, thereby can reach that bottom rate of heating is fast and even, waist heat dissipation is slow and the effect that the oral area was locked heat and was stored energy.

Specifically, the first wall 121 is relatively thin, and can be heated quickly in the heating and boiling stage, so that the temperature of the area corresponding to the first wall 121 is high and the temperature of the area corresponding to the bottom wall 110 is low, and thus stirring and boiling of the liquid from outside to inside can be achieved (as shown in fig. 5), so that the rice grains roll sufficiently and are heated more uniformly. In the stewing stage, part of heat can be transferred to the area corresponding to the third wall 123 through the area corresponding to the second wall 122, and the thickness of the third wall 123 is set to be thicker, so that the heat can be stored in the area corresponding to the third wall 123, and the stored heat can be continuously released to improve the temperature of the top layer of the rice, thereby being beneficial to the aroma enhancement of the rice.

As shown in fig. 5 and 6, the second wall 122 has a first end 122a and a second end 122b, the first end 122a is connected to the first wall 121, and the second end 122b is connected to the third wall 123, wherein the wall thickness t21 of the first end 122a is greater than the wall thickness t22 of the second end 122 b. In this scheme, through making the wall thickness of the first end 122a of second wall 122 be greater than the wall thickness of second end 122b, can make the heat of the region that first wall 121 corresponds transmit to the side of interior pot fast, be favorable to heating evenly, and the wall thickness of second end 122b is thinner relatively can reduce the ascending transmission of heat for the heat can concentrate and heat rice, increases thermal efficiency. Preferably, the wall thickness t21 of the first end 122a satisfies: t21 is more than or equal to 2mm and less than or equal to 4mm. Illustratively, the wall thickness t21 of the first end 122a may be set to 2mm, 3mm, 4mm, or the like.

Preferably, the second wall 122 has an inner surface and an outer surface, the outer surface being configured as a vertical surface, the inner surface being inclined from top to bottom in a direction towards the interior of the inner pan. The scheme can be convenient for formed condensed water to fall back along the inner surface of the inclined second wall 122, the high temperature of the second wall 122 can enable the condensed water to be quickly evaporated into steam, and the condensed water is prevented from directly dropping on rice when flowing back. Illustratively, the inner surface of the second wall 122 may be inclined at 2-4 degrees with respect to the central axis of the inner pan 100, which can be set by those skilled in the art according to actual needs.

Preferably, the relationship between the thickness t0 of the bottom wall 110 and the thickness t1 of the first wall 121 satisfies t0/2 < t1 < t0. More preferably, t0 is not less than 3mm and not more than 6mm, and t1 is not less than 1.5mm and not more than 2.5mm. For example, the thickness t0 of the bottom wall 110 may be set to 5mm or 6mm, etc., and the thickness t1 of the first wall 121 may be set to 2mm or 2.5mm, etc. In the process of using cooking utensil culinary art rice, the thickness of first wall 121 is thinner relatively, makes the inside of heat energy rapid transfer to interior pot 100 to make rice water be heated the boiling fast, and because the thickness of diapire 110 is thicker, heat transfer rate is slower, and the temperature is lower, can form the regional temperature that first wall 121 corresponds high and the regional low situation of temperature that diapire 110 corresponds, and then can make liquid form outside-in's stirring boiling, make the rice grain of rice fully roll, it is more even to be heated.

The third wall 123 forms a mouth of the inner pot 100, and preferably, a thickness t3 of the third wall 123 satisfies: t3 is more than or equal to 6mm and less than or equal to 12mm, and the height H1 of the third wall 123 satisfies: h is more than or equal to 10mm and less than or equal to 30mm, so that the third wall 123 forms a thickened heat storage area of the inner pot, heat can be stored in the area corresponding to the third wall 123, the stored heat can be released continuously, the temperature of the top layer of the rice can be increased, and fragrance can be enhanced. For example, the thickness t3 of the third wall 123 may be set to 8mm, 10mm, or the like, and the height H1 of the third wall 123 may be set to 20mm, 30mm, or the like.

As shown in fig. 1 and 4, the outer side surface of the side wall of the inner pot has a depressed index region 130. The mark area 130 is provided with a mark such as a character or a pattern. In the illustrated embodiment, the mark is a character of "precision casting kettle", and in other embodiments not shown, the mark may be other characters or patterns. In a preferred embodiment, the mark protrudes from the bottom surface of the mark region 130, so that the stereoscopic impression of the inner pot can be increased and the texture of the inner pot can be improved.

The flag region 130 is disposed at approximately the middle of the sidewall 120, preferably, the flag region 130 is disposed on the second wall 122. The outer side of the second wall 122 is a vertical surface, and the recessed indicia areas 130 are also generally vertically disposed. And the height H of the index area 130 in the height direction of the inner pot is smaller than the height H of the second wall 122. The scheme makes the inner pot more beautiful and more textured.

The following describes an inner pot die-cast blank according to a preferred embodiment of the present invention and a method of manufacturing an inner pot according to the above-described embodiment.

Preferably, the inner pot according to the above embodiment may be formed by further processing of the inner pot die cast blank. Preferably, the inner pot die-cast blank is formed by die-casting. Specifically, the inner pot die cast blank has a body portion formed by die cast molding. As shown in fig. 2 and 3, the preliminarily molded body portion includes a bottom wall 110 'and a side wall 120'. In order to facilitate the demoulding of the body part of the inner pot, the outer side surface of the side wall is provided with a draft angle beta, and specifically, the outer side surface of the second wall of the side wall is provided with a draft angle beta. The outer side of the inner pot die cast blank is cast with a logo area 130' that is recessed from the outer side toward the inner side of the side wall. The marking region 130 'has a span h in the height direction of the inner pot die-cast blank, the outer side surface of the side wall of the lower end of the marking region 130' is provided with a thickness a in the horizontal direction of the material to be removed, and the outer side surface of the side wall of the upper end is provided with a thickness b in the horizontal direction of the material to be removed, wherein b = a + h tan β. This arrangement allows the recessed portion of the logo area 130 to be vertically distributed, thereby facilitating the subsequent turning process. It should be noted that the "upper and lower ends of the index region" mentioned herein refer to the radially innermost ends of the upper and lower ends of the depressed portion of the index region.

When it is intended to form the inner pan, the above-mentioned preliminary material of the die-cast blank of the inner pan can be removed from the bottom of the second wall in the vertical direction, i.e. the excess portion of the outer side surface of the side wall having the draft is turned away so that the outer side surface of the second wall forms a vertical plane, so that the inner pan described above is obtained.

The scheme forms the inner pot die-casting blank in a die-casting mode, and the manufacturing process is simple and low in cost. In addition, through reserving the design according to above-mentioned mode with the size ratio between mark region and the lateral surface of lateral wall when die-casting, can realize after the reservation material car that has the draft with the lateral surface, mark region still can remain intact to the outward appearance is more succinct.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many more modifications and variations are possible in light of the above teaching and are intended to be included within the scope of the invention.

Claims

1. An inner pot die-casting blank is characterized in that,

the inner pot die-casting blank is provided with a body part formed by die-casting, the body part is a geometric body which is formed by rotating around a central axis and is provided with a mouth part and an inner cavity, the body part comprises a bottom wall (110 ') and a side wall (120 ') connected with the bottom wall, the outer side surface of the side wall is provided with a drawing slope beta, a mark region (130 ') is cast on the outer side surface of the side wall, a depression is formed in the mark region of the side wall from outside to inside, the mark is positioned in the depression, the span of the mark region in the height direction is h, the thickness of a material to be removed reserved on the outer side surface of the side wall at the lower end of the mark region in the horizontal direction is a, the thickness of the material to be removed on the outer side surface of the side wall at the upper end of the mark region in the horizontal direction is b, and b = a + h tan beta.

2. Inner pot, characterized in that it is manufactured by removing the material reserved for the inner pot die-cast blank according to claim 1, the inner pot being a symmetrical geometric body with an upper opening and an inner cavity formed by the pot wall revolving around the central axis, the pot wall comprising a bottom wall (110) and a side wall (120) connected to the bottom wall, the side wall having a vertical outer side, the marking area being located on the outer side of the side wall.

3. Inner pan according to claim 2, characterized in that the outer side of the symbol areas runs substantially vertically.

4. Inner pot according to claim 2, characterized in that the symbol areas are provided with characters and/or patterns, which protrude from the bottom surface of the symbol areas.

5. Inner pan according to claim 2, characterized in that the wall thickness of the pan wall on the side of the central axis on a longitudinal section through the central axis of the inner pan is distributed: the pot mouth thickening section comprises a bottom thickening section, a middle thinning section and a pot mouth thickening section from the bottom to the mouth part in sequence.

6. Inner pot according to claim 2, characterized in that the side walls comprise a first wall (121), a second wall (122) and a third wall (123) connected in sequence, wherein the first wall (121) is connected between the second wall (122) and the bottom wall and is configured as a gently curved wall protruding outwards, and the third wall (123) is connected at the upper end of the second wall (122) and encloses the mouth of the inner pot.

7. Inner pan according to claim 6, characterized in that the index area is provided on the second wall and that the height H of the index area is smaller than the height H of the second wall.

8. Inner pan according to claim 6, characterized in that the thickness of the bottom wall is larger than the thickness of the first wall (121), the thickness of the third wall (123) is larger than the thickness of the second wall (122), the second wall (122) having a first end (122 a) connected with the first wall (121) and a second end (122 b) connected with the third wall (123), the wall thickness of the first end (122 a) being larger than the wall thickness of the second end (122 b).

9. Inner pan according to claim 6, characterized in that the thickness of the second wall (122) is gradually thicker from top to bottom.

10. Inner pan according to claim 6, characterized in that the second wall (122) has an inner surface which slopes from top to bottom towards the interior of the inner pan and an outer surface which is configured as a vertical surface.

11. Inner pot according to claim 8, characterized in that the wall thickness t21 of the first end (122 a) is such that: t21 is more than or equal to 2mm and less than or equal to 4mm.

12. Inner pot according to claim 8, characterized in that the relation between the thickness t0 of the bottom wall and the thickness t1 of the first wall (121) is such that t0/2 < t1 < t0.

13. Inner pot according to claim 12, characterized in that t0 is 3mm ≦ 6mm, and/or t1 is 1.5mm ≦ 2.5mm.

14. Inner pot according to claim 8, characterized in that the thickness t3 of the third wall (123) satisfies: t3 ≦ 6mm ≦ 12mm, and/or the height H of the third wall (123) satisfies: h is more than or equal to 10mm and less than or equal to 30mm.

15. A cooking appliance, comprising:

a pot body in which the inner pot of any one of claims 2 to 14 is provided; and

the cover body is arranged on the cooker body in an openable and closable manner, and a cooking space can be formed between the cover body and the inner pot.