CN214258966U - Cooking utensil - Google Patents

Abstract

The utility model provides a cooking utensil, include: a pan body; the cover body is covered on the pot body; the locking structure is arranged between the cover body and the pot body and comprises a first thread arranged on the pot body and a second thread arranged on the cover body, the second thread is matched with the first thread, one of the first thread and the second thread is an external thread, the other one of the first thread and the second thread is an internal thread, and a concave part is arranged on the inner side of the external thread; and the filling piece is arranged on the cover body or the pot body and correspondingly arranged in the concave part. The technical scheme of the application effectively solves the problems of complex process and high cost of the locking structure in the related technology.

Description

Cooking utensil

Technical Field

The utility model relates to a small household electrical appliances technical field particularly, relates to a cooking utensil.

Background

In the related art, a pressure cooker has a characteristic of increasing the pressure in a cooker to increase a cooking temperature, and is widely used for cooking food difficult to cook. The pressure cooker is divided according to heating modes and can be divided into an open fire pressure cooker and an electric pressure cooker. Wherein, the open fire pressure cooker has the advantage of small volume. The electric pressure cooker is large in size, but is provided with a temperature control system and rich cooking procedures, so that the cooking effect of food is improved.

The locking structure of the pressure cooker in the related art is generally the matching of the flange of the cooker liner and the flange of the cover body. The flanging and tooth-buckling process is complicated. Moreover, the arrangement of the flanging affects the attractiveness of the pot body. Still some pressure cookers use caliper locks, which are costly.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a cooking device to solve the problems of complex locking structure and process and high cost in the related art.

In order to achieve the above object, the present invention provides a cooking appliance, comprising: a pan body; the cover body is covered on the pot body; the locking structure is arranged between the cover body and the pot body and comprises a first thread arranged on the pot body and a second thread arranged on the cover body, the second thread is matched with the first thread, one of the first thread and the second thread is an external thread, the other one of the first thread and the second thread is an internal thread, and a concave part is arranged on the inner side of the external thread; and the filling piece is arranged on the cover body or the pot body and correspondingly arranged in the concave part.

Use the technical scheme of the utility model, be provided with the locking structure, the locking structure is including setting up the first screw thread on the pot body and setting up the second screw thread on the lid. Wherein, one of first screw thread and second screw thread is the external screw thread, and another is the internal thread, and the closure of pot body and lid can be realized to above-mentioned first screw thread and second screw thread cooperation, can guarantee cooking utensil security under the last pressure state. The arrangement of the thread fit can well give consideration to the locking effect and the processing cost, and meanwhile, the cooking utensil is reasonable in size. The thread processing has the characteristics of simple process, low cost and good locking effect. Meanwhile, compared with the flanging and thread-fastening process in the related art, the thread processing does not need to cut off a large amount of materials to form spaced gaps so as to realize the matching of the pot body and the cover body, so that the process is simple, and the connection strength is high. Therefore, the technical scheme of the application effectively solves the problem that the locking structure in the related technology is complex in process. Meanwhile, in the present application, the inner side of the external thread is provided with a recess. The filler is disposed within the recess. The filling member can be filled into the concave portion, so that food can be effectively prevented from entering and remaining in the concave portion.

Further, the external thread is formed by rolling. The roll forming process can save materials of the pot body, has high thread strength, can ensure the connection strength of the locking structure, and enables the connection of the cover body and the pot body to meet the pressure bearing requirement in the pressure cooking process.

Further, the pot body is made of metal materials, the first threads are external threads, and the second threads are internal threads. The internal thread sets up on the lid, and the external screw thread sets up on the pot body, and the setting of above-mentioned screw thread has reduced the screw thread processing technology degree of difficulty, guarantees the closure effect of locking structure simultaneously, and then can guarantee the joint strength of locking structure. Meanwhile, the structure can facilitate the operation of a user.

Further, the filling piece is of a strip-shaped structure, and/or the filling piece protrudes inwards from the inner side wall of the pot body. The strip-like structure is easy to process and is easy to install into the recess. The filling member protrudes out of the inner side wall of the pot body, so that the filling effect can be improved.

Further, the filling member includes a flexible portion. The flexible portion has deformability, so that the space inside the concave portion is completely filled with the filling piece, food cannot enter the concave portion, and the situation that bacteria grow due to the fact that the food is left in the concave portion is effectively avoided.

Further, the filling member further includes a support portion provided inside the flexible portion. The support part can support the flexible part to enable the shape and the size of the flexible part to correspond to those of the concave part, so that the filling piece can completely fit the outline of the concave part and can be fastened in the concave part. And then make food can't get into in the concave part, effectively avoided food to remain in the concave part and lead to the emergence of the condition that the bacterium bred.

Further, the flexible portion is made of a plastic material, and/or the supporting portion is made of a metal material. The plastic material has the advantages of good chemical stability, strong corrosion resistance, durability, low processing cost and the like. And the plastic has deformability, so that the flexible part can be attached to the contour of the concave part. The metal has the advantages of high hardness, high strength, difficult deformation and the like, and can play a role in supporting the flexible part and fastening the flexible part in the concave part.

Further, the first thread and the second thread are of a continuous thread structure, or the first thread and the second thread comprise a plurality of thread segments. The continuous thread arrangement can effectively ensure the connection strength of the first thread and the second thread, so that the pressure cooker can meet the pressure bearing requirement in the use process. The first thread and the second thread may include a plurality of thread segments while securing the connection strength. The multi-section threads enable a user to realize the locking connection of the cover body and the pot body only by rotating a small angle.

Further, the first thread height c1 satisfies: c1 is more than or equal to 2mm and less than or equal to 4mm, and the tooth height c2 of the second thread satisfies the following conditions: c2 is more than or equal to 2mm and less than or equal to 4 mm. The first thread and the second thread are trapezoidal threads, wherein the crest width f1 of the first thread satisfies: f1 is more than or equal to 2mm and less than or equal to 3mm, and the root width b1 of the first thread satisfies the following conditions: b1 is more than or equal to 4mm and less than or equal to 6mm, and the crest width f2 of the second thread satisfies the following conditions: f2 is more than or equal to 2mm and less than or equal to 3mm, and the root width b2 of the second thread satisfies the following conditions: b2 is more than or equal to 4mm and less than or equal to 6 mm; the profile angle d1 of the first thread satisfies: d1 is more than or equal to 20 degrees and less than or equal to 40 degrees, and the thread form angle d2 of the second thread satisfies the following conditions: d2 is more than or equal to 20 degrees and less than or equal to 40 degrees. The size ensures the connection strength of the locking structure, so that the cooking utensil can meet the pressure bearing requirement in the pressure cooking process; meanwhile, the material waste and the space occupation caused by the large integral size of the cooking utensil are avoided.

Further, the pot body is including pot body and the pot body handle of setting on pot body, and the lid includes the lid handle, and first screw thread setting has contained angle e between the line between the first end of first screw thread and the center of the pot body and the central line of pot body handle on the lateral wall of pot body, and contained angle e satisfies: e is more than or equal to 3 degrees and less than or equal to 30 degrees. When the cooker is used by a user, the cover body handle is aligned with the cooker body handle, and the rotating angle e of the cover body can enable the starting end of the second thread to be aligned with the starting end of the first thread to reach the screwing starting position. The setting of contained angle e makes the user can realize the counterpoint of first screw thread and second screw thread fast, and convenience of customers's use promotes user's use and experiences.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a cooking appliance according to the invention;

FIG. 2 shows an exploded view of the cooking appliance of FIG. 1;

FIG. 3 shows a schematic cross-sectional view of the cooking appliance of FIG. 1;

fig. 4 shows an enlarged schematic view at a of the cooking appliance of fig. 3;

fig. 5 shows a parametric schematic of a first thread of the cooking appliance of fig. 1;

fig. 6 shows a parametric schematic of a second thread of the cooking appliance of fig. 1;

fig. 7 shows a schematic top view of the pot and the pot body of the cooking appliance of fig. 1;

fig. 8 shows a perspective view of the cover of the cooking appliance of fig. 1;

fig. 9 shows a perspective view of a pot of the cooking appliance of fig. 1; and

fig. 10 shows a perspective view of a filling member of the cooking appliance of fig. 2.

Wherein the figures include the following reference numerals:

10. a pan body; 11. a pan body; 12. a pan body handle; 20. a cover body; 21. a cover body handle; 30. a locking structure; 31. a first thread; 32. a second thread; 33. a recess; 40. a filling member; 41. a flexible portion; 50. a pot body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 to 3, the cooking appliance of the present embodiment includes: pot 10, lid 20, locking structure 30 and filling member 40. The cover body 20 is covered on the pot body 10. The locking structure 30 is disposed between the cover 20 and the pot 10, the locking structure 30 includes a first thread 31 disposed on the pot 10 and a second thread 32 disposed on the cover 20, and the second thread 32 is engaged with the first thread 31. The first thread 31 is an external thread, the second thread 32 is an internal thread, and a recess 33 is provided inside the external thread. The filling member 40 is disposed on the cover 20 or the pot 10, and the filling member 40 is correspondingly disposed in the concave portion 33.

By applying the technical scheme of the embodiment, the first thread 31 is arranged on the pot body 10, and the second thread 32 is arranged on the cover body 20. The first thread 31 is an external thread, the second thread 32 is an internal thread, and the first thread 31 and the second thread 32 are matched to realize the locking of the pot body 10 and the cover body 20, so that the safety of the cooking appliance in an up-pressing state is ensured. The arrangement of the thread fit can well give consideration to the locking effect and the processing cost, and meanwhile, the cooking utensil is reasonable in size. The thread processing has the characteristics of simple process, low cost and good locking effect. Meanwhile, compared with the flanging and threading process in the related art, the thread processing does not need to cut off a large amount of materials to form spaced gaps to realize the matching of the pot body 10 and the cover body 20, so that the process is simple and the connection strength is high. Therefore, the technical scheme of the embodiment effectively solves the problem of complex locking structure process in the related art. Meanwhile, in the present embodiment, the inside of the male screw is provided with the recess 33, and the filler 40 is provided in the recess 33. The filling member 40 can be filled into the concave portion 33, so that food can be effectively prevented from entering and remaining in the concave portion 33.

In the embodiment, the connection between the cover 20 and the pot 10 is realized by screwing the threads, so that safe pressure bearing is realized. The threaded connection has the advantages of simple process and low cost, and the appearance of the pot body 10 and the cover body 20 is more beautiful by adopting threaded screwing.

In this embodiment, the external screw thread is formed through roll-in, can practice thrift the material of the pot body 10, and screw thread intensity is high, and then can guarantee the joint strength of locking structure 30, makes lid 20 and the connection of the pot body 10 can satisfy the pressure-bearing requirement of pressure culinary art in-process.

In the embodiment not shown in the drawings, the first thread and the second thread may also be processed by other processing methods, such as turning, grinding, etc., as long as the processed threads can achieve the locking of the cover body and the pot body and meet the pressure bearing requirement of the cooking utensil in the pressure cooking process.

In the present embodiment, the cooking appliance further includes a pot body 50, and the pot body 10 is disposed inside the pot body 50. The pot body 10 is made of metal material, specifically stainless steel material. The thickness h of the pan body 10 satisfies: h is more than or equal to 0.8mm and less than or equal to 1.5 mm. Preferably, h is 1.0mm or h is 1.2 mm. In order to reduce the difficulty of the thread machining process and ensure the locking effect of the locking structure 30, the connection strength of the locking structure 30 can be further ensured. Meanwhile, the structure can facilitate the operation of a user. As shown in fig. 2, 3 and 4, in the present embodiment, the first thread 31 is an external thread, and the second thread 32 is an internal thread. Meanwhile, in consideration of the usage habit of the user when rotating the cover 20 to lock the cover 20 and the pot 10, in the present embodiment, the first screw 31 and the second screw 32 are right-handed screws.

In this embodiment, the heating mode adopts an IH heating mode, and the pot body 10 adopts a bright hot pot style, so that the pot body 10 is small in size and easy to clean, and is convenient for a user to use.

In an embodiment not shown in the figures, the first thread may also be an internal thread and correspondingly the second thread is an external thread. At this time, the recess is provided in the cap body. The arrangement mode of the threads can also realize the locking between the cover body and the pot body. Meanwhile, the first thread and the second thread may be right-handed threads or left-handed threads.

As shown in fig. 4 and 10, the filling member 40 has a strip-like structure, which is easy to process and is easy to be mounted into the recess 33. The filling effect can be improved by the filling member 40 protruding from the inner side wall of the pot body 10.

As shown in fig. 9 and 10, the filling member 40 includes the flexible portion 41, and the flexible portion 41 has deformability such that the space inside the concave portion 33 is entirely filled with the filling member 40, and thus food cannot enter into the concave portion 33. In the using process of the user, once the food is left in the concave part 33, the user can not clean the food left in the concave part 33 completely when cleaning the pot body 10, and part of the food is left in the concave part 33, which causes bacteria breeding. The deformable flexible portion 41 prevents food from entering the concave portion 33, thereby effectively preventing bacteria from growing due to food remaining in the concave portion 33.

In the present embodiment, the flexible portion 41 is made of plastic material. The plastic material has the advantages of good chemical stability, strong corrosion resistance, durability, low processing cost and the like. And the plastic has deformability, so that the flexible portion 41 can be attached to the contour of the concave portion 33, food cannot enter the concave portion 33, and the situation that bacteria grow due to the fact that the food is left in the concave portion 33 is effectively avoided.

In a solution not shown in the present embodiment, the flexible portion may also be made of other materials with deformability, as long as the flexible portion can be made to conform to the contour of the recess and fill the space inside the recess, blocking food from entering the recess and remaining inside the recess.

In a solution not shown in this embodiment, the filling member further comprises a support portion arranged inside the flexible portion. The supporting part can be made of steel bars and the like, and the shape and the size of the supporting part correspond to those of the concave part. The flexible portion is deformable such that the filling member is able to fill the space within the recess. Meanwhile, the support part can support the flexible part to enable the shape and the size of the flexible part to correspond to those of the concave part, so that the filling piece can completely fit the outline of the concave part and can be fastened in the concave part. And then make food can't get into in the concave part, effectively avoided food to remain in the concave part and lead to the emergence of the condition that the bacterium bred.

The supporting part is made by the metal material, and the metal has advantages such as hardness is big, intensity is high, non-deformable, can play the effect that supports flexible portion and make the flexible portion fastening in the concave part for food can't get into in the concave part, has effectively avoided food to remain the emergence that leads to the condition that bacterial growing in the concave part. Meanwhile, the support part can also be made of other materials which can play a supporting effect on the flexible part as long as the flexible part can be fastened in the concave part.

As shown in fig. 7 to 9, in the present embodiment, the first thread 31 and the second thread 32 are continuous thread structures, and the continuous thread arrangement can effectively ensure the connection strength of the first thread 31 and the second thread 32, so that the pressure cooker can meet the pressure-bearing requirement during the use process.

In an embodiment not shown in the figures, the first thread and the second thread may comprise a plurality of thread segments, ensuring the strength of the connection. The first thread and the second thread are correspondingly machined into multiple sections. In the process that a user rotates the cover body to be screwed, after the threads of the second threads are aligned with the spacing positions among the multiple sections of threads of the first threads, the cover body and the pot body can be locked and connected only by rotating a small angle to enable the thread positions of the first threads and the second threads to correspond.

As shown in fig. 5 and 6, in the present embodiment, the thread height c1 of the first thread 31 and the thread height c2 of the second thread 32 satisfy: c 1-c 2-3 mm. The locking effect of the first threads 31 and the second threads 32 can be guaranteed through the size, the safety of the cooking appliance in the upper pressing state is further guaranteed, and meanwhile the processing cost and the size of the cooking appliance are reasonable.

Of course, as will be appreciated by those skilled in the art, only the thread height c1 of the first thread 31 is made to satisfy: 2mm ≦ c1 ≦ 4mm, or, only the tooth height c2 of the second thread 32 is made to satisfy: c2 is more than or equal to 2mm and less than or equal to 4mm, so that the safety of the cooking utensil can be guaranteed, meanwhile, the processing cost can be well considered for the above sizes, and meanwhile, the size of the cooking utensil is reasonable.

In this application, first screw thread and second screw thread can take the screw thread profile such as triangle-shaped, trapezoidal, as long as first screw thread and second screw thread can cooperate and realize the closure of lid and pot body can.

As shown in fig. 4 to 6, the first thread 31 and the second thread 32 are trapezoidal threads. Wherein the crest width f1 of the first thread 31 satisfies: f1 is more than or equal to 2mm and less than or equal to 3mm, and the root width b1 of the first thread 31 satisfies the following condition: b1 is more than or equal to 4mm and less than or equal to 6 mm; the crest width f2 of the second thread 32 satisfies: f2 is more than or equal to 2mm and less than or equal to 3mm, and the root width b2 of the second thread 32 satisfies the following condition: b2 is more than or equal to 4mm and less than or equal to 6 mm. The size ensures the connection strength of the locking structure, so that the cooking utensil can meet the pressure bearing requirement in the pressure cooking process; meanwhile, the material waste and the excessive space occupation caused by the large integral size of the cooking utensil are avoided.

As shown in fig. 5 and 6, in the present embodiment, the crest width f1 of the first thread 31 and the crest width f2 of the second thread 32 are equal, i.e., f1 ═ f2 ═ 2.5mm, and the root width b1 of the first thread 31 and the root width b2 of the second thread 32 are equal, i.e., b1 ═ b2 ═ 5 mm. This ensures a tight fit of the first thread 31 and the second thread 32, ensuring the coupling strength of the locking structure 30. It should be noted that, when f1 and f2 are smaller than 2mm, and b1 and b2 are smaller than 4mm, the connection strength of the locking structure 30 cannot meet the pressure-bearing requirement of the cooking utensil during the pressure cooking process. Meanwhile, when f1 and f2 are greater than 2mm, and b1 and b2 are greater than 6mm, although the increase in size can further increase the coupling strength of the locking structure 30, the increase in size further increases the overall size of the cooking appliance, which may cause waste of materials on the one hand and occupy too much space on the other hand. The above dimensions ensure the connection strength of the locking structure 30, so that the cooking appliance can meet the pressure bearing requirements in the pressure cooking process; meanwhile, the material waste and the space occupation caused by the large integral size of the cooking utensil are avoided.

As shown in fig. 4 to 6, the first thread 31 and the second thread 32 are trapezoidal threads. Wherein the profile angle d1 of the first thread 31 satisfies: d1 is more than or equal to 20 degrees and less than or equal to 40 degrees; the profile angle d2 of the second thread 32 satisfies: d2 is more than or equal to 20 degrees and less than or equal to 40 degrees. In the present embodiment, the profile angle d1 of the first thread 31 is equal to the profile angle d2 of the second thread 32, i.e., d1 is equal to d2 is equal to 30 °, and the above dimensions can ensure the tight fit between the first thread 31 and the second thread 32, thereby ensuring the connection strength of the locking structure 30. It should be noted that when d1 and d2 are less than 20 °, the processing difficulty is high, and it is difficult for a user to screw the pot body 10 and the lid body 20 together, which brings inconvenience to the user; when d1 and d2 are greater than 40 °, the connection strength of the locking structure 30 cannot meet the pressure bearing requirement of the cooking appliance during pressure cooking.

As shown in fig. 7, the pot body 10 includes a pot body 11 and a pot body handle 12 disposed on the pot body 11, the lid 20 includes a lid handle 21, the first thread 31 is disposed on the outer sidewall of the pot body 11, an included angle e is formed between a connecting line between the first end of the first thread 31 and the center of the pot body 10 and the center line of the pot body handle 12, and the included angle e satisfies: e is more than or equal to 3 degrees and less than or equal to 30 degrees. As shown in FIG. 7, the first end of the first thread 31 is the starting position of the first thread 31 on the pot 10. In the present embodiment, the angle e is 15 °. It should be noted that: the line between the first end of the first thread 31 and the center of the pot body 10 is a line between the first end of the first thread 31 and the center of the pot body 10 in a horizontal plane.

In this embodiment, there are two pan body handles 12, and there are two cover body handles 21, so that the two pan body handles 12 and the cover body handles 21 are convenient for the user to operate. As shown in FIG. 7, during use, the user rotates the cover 20 by holding the cover handle 21, so that the first thread 31 and the second thread 32 are engaged to lock the cover 20 and the pot 10. The user can first align the cover handle 21 with the pot handle 12 (the position of the cover handle 21 is shown in fig. 1), and rotate the angle e clockwise to align the start of the second thread 32 on the cover 20 with the start of the first thread 31 on the pot 10 to reach the screwing start position. The user continues to rotate the cover 20 for a circle to make the first thread 31 and the second thread 32 completely engaged, so as to lock the cover 20 and the pot 10. The setting of contained angle e makes the user can realize the counterpoint of first screw thread 31 and second screw thread 32 fast, and the user of being convenient for closes the counterpoint of lid 20 soon in the convenience of customers use with the first screw thread 31 of second screw thread 32 screw in on the lid 20, promotes user's use and experiences.

In this embodiment, the cooking appliance includes an air fryer or an electric rice cooker or an electric pressure cooker or a multifunctional heating pot with functions of baking, cooking and cooking.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A cooking appliance, comprising:

a pan body (10);

the cover body (20) is covered on the pot body (10);

the locking structure (30) is arranged between the cover body (20) and the pot body (10), the locking structure (30) comprises a first thread (31) arranged on the pot body (10) and a second thread (32) arranged on the cover body (20), the second thread (32) is matched with the first thread (31), one of the first thread (31) and the second thread (32) is an external thread, the other one is an internal thread, and a concave part (33) is arranged on the inner side of the external thread;

a filler (40) disposed on the lid (20) or the pot (10), the filler (40) being disposed in the recess (33).

2. The cooking appliance of claim 1, wherein the external threads are formed by roll forming.

3. The cooking appliance according to claim 1, wherein the pan (10) is made of metal, the first thread (31) being the external thread and the second thread (32) being the internal thread.

4. Cooking appliance according to claim 3, characterized in that the filling member (40) is a strip-like structure and/or the filling member (40) protrudes inwardly from the inner side wall of the pot (10).

5. Cooking appliance according to claim 1, characterized in that the filler piece (40) comprises a flexible portion (41).

6. Cooking appliance according to claim 5, characterized in that said filler (40) further comprises a support provided inside said flexible portion (41).

7. Cooking appliance according to claim 6, characterized in that said flexible portion (41) is made of plastic material and/or said support is made of metal material.

8. The cooking appliance according to claim 1, wherein the first and second threads (31, 32) are of continuous thread construction or wherein the first and second threads (31, 32) comprise a plurality of thread segments.

9. The cooking appliance of claim 1,

the first thread (31) has a height c1 that satisfies: 2mm < c1 < 4mm, and the tooth height c2 of the second thread (32) satisfies the following conditions: c2 is more than or equal to 2mm and less than or equal to 4 mm;

the first thread (31) and the second thread (32) are trapezoidal threads, wherein the crest width f1 of the first thread (31) satisfies: f1 is more than or equal to 2mm and less than or equal to 3mm, and the root width b1 of the first thread (31) satisfies the following condition: b1 is not less than 4mm and not more than 6mm, and the crest width f2 of the second thread (32) satisfies the following condition: f2 is more than or equal to 2mm and less than or equal to 3mm, and the root width b2 of the second thread (32) satisfies the following condition: b2 is more than or equal to 4mm and less than or equal to 6 mm; the profile angle d1 of the first thread (31) satisfies: 20 DEG-d 1-40 DEG, the profile angle d2 of the second thread (32) being such that: d2 is more than or equal to 20 degrees and less than or equal to 40 degrees.

10. The cooking appliance according to claim 1, wherein the pot (10) comprises a pot body (11) and a pot handle (12) disposed on the pot body (11), the cover (20) comprises a cover handle (21), the first thread (31) is disposed on an outer sidewall of the pot body (11), a line between a first end of the first thread (31) and a center of the pot (10) and a center line of the pot handle (12) form an included angle e, and the included angle e satisfies: e is more than or equal to 3 degrees and less than or equal to 30 degrees.

Images