CN220459181U - Cover and cooking utensil - Google Patents

Abstract

The utility model discloses a cover body and a cooking utensil, wherein the cover body comprises a lining, a top heating device and a heat insulating piece, and a plurality of buckling structures are arranged on the lining at intervals along the circumferential direction; the top heating device is arranged on the lower side of the lining; the heat insulating part is arranged at the lower side of the lining and is configured to enable the top heating device to be indirectly connected with the lining, a plurality of rotary buckles are arranged on the heat insulating part at intervals along the circumferential direction, penetrate into the buckling position structure and are rotationally clamped to the buckling position structure along the circumferential direction. According to the utility model, the heat insulation piece adopts the clamping structure of the rotary buckle and is connected with the lining in a rotary clamping assembly mode, the clamping structure is not easy to damage in the assembly process, the elastic requirement is low, the problem of fracture of the clamping structure such as the buckle can be effectively avoided, the connection reliability is high, stable and reliable connection can be maintained without screw auxiliary fixation, and the assembly efficiency is high.

Description

Cover and cooking utensil

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a cover body and a cooking appliance.

Background

A cover body of the existing cooking appliance such as an electric cooker comprises an inner liner and a face cover, wherein the face cover is connected with the inner liner and covers the outer part of the inner liner. A top heating device is arranged in the cover body. In order to avoid heat generated by the top heating device being transferred to the inner liner, a heat insulating member is also arranged in the cover body, and the heat insulating member is connected to the inner liner and indirectly connects the top heating device with the inner liner. In some cooking appliances, the cover further includes a thermal insulation plate, the top heating device is mounted on the thermal insulation plate, and the thermal insulation plate and the thermal insulation member form an assembly and are connected to the inner liner.

The existing heat insulating piece is provided with a plurality of buckles with buckles, the buckles penetrate through corresponding through holes of the lining and then are connected to the lining through the buckles in a clamping mode, and accordingly the heat insulating piece is connected to the lining through up-down pressing type clamping. Since the heat insulating member is made of plastic with high hardness such as PPS (polyphenylene sulfide ), the snap elasticity is poor and the breakage is easy.

Accordingly, there is a need for a cover and a cooking appliance that at least partially address the above issues.

Disclosure of Invention

A series of concepts in a simplified form are introduced in the summary of the utility model, which will be described in further detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to solve the above problems at least in part, the present utility model provides a cover for a cooking appliance, comprising:

the lining is provided with a plurality of buckling structures at intervals along the circumferential direction;

the top heating device is arranged on the lower side of the lining; and

the heat insulation piece is arranged on the lower side of the lining and is configured to enable the top heating device to be indirectly connected with the lining, a plurality of rotary buckles are arranged on the heat insulation piece at intervals along the circumferential direction, penetrate into the buckling position structure and are rotationally clamped to the buckling position structure along the circumferential direction.

According to this scheme, the heat-proof member adopts the joint structure of rotatory knot to with rotatory joint's assembly method and inside lining connection, joint structure is difficult for receiving the damage in the assembly process, and elasticity requirement is lower, can effectively avoid the cracked problem of joint structure such as buckle. And the reliability of connection is higher, stable and reliable connection can be maintained without screw auxiliary fixation, and the assembly efficiency is high. The material of the heat insulating member is not limited, and can be made of plastic material with smaller hardness, or plastic with high hardness such as PPS, so that the material cost is reduced.

Optionally, the inner liner is further provided with at least one rotation fixing member, and the rotation fixing member is disposed close to the buckling structure and is connected with the rotation buckle at the rotated clamping position, so as to limit the rotation buckle to move in the circumferential direction.

According to the scheme, the rotary buckle at the clamping position can be limited to move relative to the lining in the circumferential direction, so that the rotary buckle is kept at the clamping position, the rotary buckle is prevented from tripping from the buckling structure, and the connection reliability of the heat insulation piece and the lining is further improved.

Optionally, the rotary buckle has a first side facing the rotation direction and a second side facing away from the rotation direction, the rotary buckle includes a male buckle, the rotary fixing piece includes a first stop portion and/or a second stop portion, the first stop portion abuts against the second side when the rotary buckle is located at the clamping position, and the second stop portion abuts against the first side when the rotary buckle is located at the clamping position.

According to the scheme, the first stop part can stop the rotary buckle from rotating reversely, so that the rotary buckle is prevented from falling out of the clamping position due to reverse rotation, and the rotary buckle is ensured to be stably and reliably kept at the clamping position. The second stop part can prevent the rotary buckle which is screwed to the clamping position from continuously rotating along the rotating direction, so that the rotary buckle is prevented from rotating out of the clamping position along the rotating direction due to large rotating force, and the assembly efficiency is improved.

Optionally, the rotation fixture includes the first stop and the second stop spaced apart in the circumferential direction, the cam buckle being located between the first stop and the second stop when the rotation buckle is in the clamped position.

According to this scheme, can follow rotation direction and reverse rotation direction and all block rotatory knot, make rotatory knot steadily reliably keep in the joint position, can not deviate from the joint position because of reverse rotation or rotation force is great.

Optionally, the first stop portion and the second stop portion are independent,

or the rotary fixing piece further comprises a connecting part, and the first stopping part is connected with the second stopping part through the connecting part.

According to the scheme, the two independently arranged stop parts can respectively form proper shapes, so that the design freedom degree is high; the two stop parts which are arranged in a connecting way are better in structural strength, and the rotary buckle at the clamping position can be effectively prevented from rotating after long-time use.

Optionally, the first stop and the second stop each have a proximal end in a radial direction near a middle position of the inner liner and a distal end away from the middle position of the inner liner, the distal end of the second stop protruding in a radial direction beyond the distal end of the first stop, wherein the middle position of the inner liner corresponds to a center of rotation of the insulation.

According to the scheme, the overlapped size of the convex buckle and the first stop part in the radial direction is smaller, so that the first stop part not only has the capability of blocking the convex buckle at the clamping position, but also allows the convex buckle to easily rotate to the clamping position by crossing the first stop part.

Optionally, the first stop portion is provided with a first guiding surface and/or a second guiding surface having an arc or inclined surface, the first guiding surface facing away from the rotation direction, and the second guiding surface facing the rotation direction.

According to this scheme, the protruding knot can be followed first guide surface and/or second guide surface and screwed into joint position easily, and the rotation force for rotatory knot can be less, and the rotation operation is gone on more easily to can reduce the damage of rotation operation to protruding knot and first blocking portion.

Optionally, the male buckle is provided with a first mating surface and/or a second mating surface, wherein the first mating surface faces the rotating direction so as to be in contact with the first guiding surface in the rotating process of the rotating buckle, and the second mating surface faces away from the rotating direction so as to be in contact with the second guiding surface in the rotating process of the rotating buckle.

According to the scheme, soft contact exists between the convex buckle and the guide surface of the first stop part, so that the convex buckle is easily screwed into the clamping position, and the damage of the rotation operation to the convex buckle and the first stop part can be further reduced.

Optionally, the lining includes a body wall, the buckling structure includes a receiving opening and a receiving opening edge that are opened in the body wall, the rotary buckle includes a buckle body and a male buckle protruding from the buckle body, the buckle body and the male buckle penetrate through the receiving opening, and the male buckle is clamped to the receiving opening edge.

According to the scheme, the buckling structure is formed by means of the main body wall of the lining, the rotary buckle penetrates through the main body wall and is clamped to the outer side of the main body wall, the buckling structure is simple, and the production and the manufacturing of the lining are facilitated.

Optionally, the receiving opening includes a first receiving opening and a second receiving opening that are connected to each other, the second receiving opening protrudes radially from the first receiving opening, the buckle main body is disposed in the first receiving opening in a penetrating manner, a size of the first receiving opening in the circumferential direction is greater than a size of the buckle main body, the male buckle penetrates through the second receiving opening, and a size of the second receiving opening in the circumferential direction is smaller than a size of the first receiving opening.

According to this scheme, detain the main part and can remove along circumference direction in first receiving opening, can the joint to receiving opening edge after rotatory through the protruding knot that the second receiving opening penetrated.

Optionally, the heat insulating member is configured to have a circular or circular arc-shaped outer contour, and the rotary buckle is provided at least at an outer peripheral portion of the heat insulating member;

according to this aspect, at least the outer peripheral portion of the heat insulator and the inner liner can be reliably connected together, and the connection between the two can be made more stable and reliable.

And/or the circumferential direction is defined based on a center of rotation of the insulation;

according to this scheme, can set up the knot bit architecture on the inside lining based on the position of heat insulating part corresponds, the setting mode is easier.

And/or the rotary buckle extends upwards from the upper surface of the heat insulating piece, the heat insulating piece is further provided with a boss protruding out of the upper surface, and the boss is in butt joint with the inner side of the lining.

According to this scheme, the inside lining is pressed from both sides between boss and protruding knot for the insulating part is firmly reliably connected with the inside lining in vertical direction, is difficult for breaking away from, and the insulating part is less with the part of inside lining butt, can reduce the material quantity of insulating part, reduce material cost.

Optionally, the heat insulating piece is an annular member or a plate-shaped member, the heat insulating piece is provided with one of a heat insulating piece through hole and an avoidance gap, the cover body comprises a steam channel member, and the steam channel member penetrates through the one of the heat insulating piece through hole and the avoidance gap.

According to the scheme, through the arrangement of the through holes or the avoidance gaps of the heat insulating piece, the heat insulating piece can reserve a space for accommodating the steam channel component, and the steam channel component is convenient to assemble.

Optionally, an insulation board is further included, the insulation board is provided on the lower side of the top heating device and is connected with the heat insulation member, and the top heating device is fixed to one of the heat insulation member and the insulation board.

According to this scheme, heated board, top heating device and insulating part can wholly constitute a subassembly, when the equipment lid, assembles the subassembly that three formed to the inside lining together, and assembly efficiency is high.

Optionally, the insulation board is provided with a plurality of connecting feet at intervals, the heat insulation piece is provided with a plurality of receiving grooves and penetrating holes connected with the receiving grooves at intervals, and the connecting feet penetrate out of the penetrating holes and bend into the receiving grooves.

According to this scheme, can be with the heat preservation board firmly reliably together with the insulating part fixed by means of the connecting leg, fixed knot constructs simply, makes things convenient for the production of heated board and insulating part to assemble to the inside lining with the subassembly form, can improve assembly efficiency.

According to another aspect of the present utility model, there is provided a cooking appliance comprising a pot body and a cover body according to any one of the above aspects, the cover body being openably and closably provided to the pot body to form a cooking space between the cover body and the pot body.

Drawings

The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model.

In the accompanying drawings:

fig. 1 is a sectional view of a portion of a cover according to a first embodiment of the present utility model;

FIG. 2 is a schematic perspective view of the assembly of the insulation panel, top heating device and insulation shown in FIG. 1;

FIG. 3 is a top view of a portion of the cover shown in FIG. 1 with the swivel button in an assembled position prior to rotation;

FIG. 4 is a top view of a portion of the cover shown in FIG. 1 with the swivel clasp in a rotated, snapped position;

FIG. 5 is an enlarged view of portion A of FIG. 2;

FIG. 6 is an enlarged view of portion B of FIG. 2;

FIG. 7 is an enlarged view of portion C of FIG. 3;

FIG. 8 is an enlarged view of portion D of FIG. 4;

FIG. 9 is a partial perspective cross-sectional view of a portion of the cover shown in FIG. 1;

FIG. 10 is a partial view similar to FIG. 7 of a portion of a cover according to a second embodiment of the utility model;

fig. 11 is a partial view similar to fig. 8 of a portion of the cover shown in fig. 10.

Reference numerals illustrate:

10 liner 11 body wall

12 lining through hole 20 insulation board

21 connecting pin 22 heat insulation board through hole

23 support wall 24 ground engaging leg

31 top heating device 32 steam channel member

40 insulation 41 receiving groove

42 through hole 43 insulation element through hole

44 boss 50 buckling structure

51 receiving opening 52 receiving opening edge

53 first receiving opening 54 second receiving opening

55 dodge opening 60 rotary buckle

61 buckle main body 62 convex buckle

63 arc-shaped part 64 reinforcing rib

70 first stop portion of rotation fixing member 71

72 second stop 73 connection

74 rotation stopping groove

Detailed Description

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

In the following description, a detailed description will be given for the purpose of thoroughly understanding the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are familiar to those skilled in the art. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.

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 exemplary embodiments according to the present utility model. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for illustrative purposes only and are not limiting.

Exemplary embodiments according to the present utility model will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be appreciated that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

First embodiment

A first embodiment of the present utility model provides a cooking appliance including a pot body and a cover body. The pot body is provided with a cylindrical inner pot containing part. The inner pot can be fixedly arranged at the inner pot containing part, or can be freely placed in the inner pot containing part or taken out from the inner pot containing part, so that the inner pot can be conveniently cleaned. The inner pot is typically made of a metallic material and has a circular opening in its upper surface for holding the material to be heated, such as rice, soup, etc. The cooker body comprises a heating device, such as a heating plate, for heating the inner pot.

It is understood that the cooking appliance according to the present utility model may be an electric rice cooker, an electric pressure cooker or other cooking appliances, and the cooking appliance may have various functions of cooking porridge or the like in addition to the function of cooking rice.

The cover has a shape substantially corresponding to the pot. The cover body is arranged on the cooker body in an openable and closable manner, specifically, the cover body is pivoted to the cooker body through a pivot shaft and can freely pivot between a cover position and an opening position relative to the cooker body around the pivot axis where the pivot shaft is positioned so as to conveniently cover and open the cooker body. When the cover body is covered on the cooker body, the cover body covers the inner cooker and forms a cooking space with the inner cooker. The lid also typically has a port seal, which may be made of, for example, a rubber material, disposed between the lid and the inner pot for sealing the cooking space when the lid is in the closed position.

The lid body may principally comprise an inner liner 10 (see fig. 1), a face cap assembly located on the upper or outer side of the inner liner 10, and a removable cap assembly located on the lower or inner side of the inner liner 10. The face cap assembly may be mounted to liner 10 by other suitable means, such as snap or fastener fastening, etc., the face cap assembly covering the exterior of liner 10. The removable lid assembly may be removably mounted to liner 10 by other suitable means, such as snap-fit or fastener fastening, to facilitate removal of the removable lid assembly for cleaning. The cover further includes a steam channel member 32. The steam passage member 32 can form a steam passage that communicates the external environment with the cooking space.

It is to be noted that directional terms used herein to describe various components, portions, etc. of the cover, such as "upper", "lower", "above", "below", "upper", "lower", "upward", "downward", etc., are relative to the cover in a horizontally disposed and closed state.

As shown in fig. 1, the cover may further include an insulation board 20, a top heating device 31, and a heat insulator 40. The thermal insulation board 20 is disposed between the liner 10 and the removable cover assembly, specifically, the underside of the liner 10 and the upper side of the removable cover assembly. The top heating means 31 may be provided at the lower side of the inner liner 10 and at the upper side of the insulation board 20. The insulation 40 is provided at the lower side of the inner liner 10 and the upper side of the insulation board 20, and the insulation 40 can be connected to the inner liner 10. The top heating means 31 can be indirectly connected to the inner liner 10 through the insulation 40. Insulation board 20 can be connected to insulation 40. The insulation board 20, the top heating device 31 and the heat insulator 40 may be integrally formed into one assembly, and the assembly formed by the three is assembled to the liner 10 together when the cover is assembled, so that the assembly efficiency is high.

The top heating device 31 is fixed to one of the heat insulator 40 and the heat insulation board 20. One embodiment is, for example, the illustrated embodiment, with the top heating device 31 secured to the upper side of the thermal insulation plate 20. Illustratively, the top heating device 31 may include a heat generating sheet that may be disposed on the upper side of the thermal insulation board 20 by means such as bonding. In this version, the top heating means 31 is indirectly connected to the inner liner 10 through the insulation board 20, the insulation 40. In another embodiment, not shown, the top heating means 31 may also be fixed to the insulation 40. In this version, the insulation 40 is a plate-like member and the top heating device 31 is indirectly connected to the liner 10 through the insulation 40.

To attach the insulation 40 to the liner 10, as shown in fig. 2-4, the liner 10 may be provided with a plurality of buckling structures 50 spaced apart in the circumferential direction. The heat insulating member 40 is provided with a plurality of swivel buttons 60 at intervals in the circumferential direction. The rotary clasp 60 is capable of penetrating the clasp position structure 50 and rotationally clamping to the clasp position structure 50 in a circumferential direction. The term "plurality" as used herein means two or more. As used herein in describing the liner 10 and insulation 40, "circumferential direction" and "radial direction" are defined based on the center of the insulation 40 as the center of rotation.

Fig. 3 shows the turnbuckle 60 in an assembled position before rotation, and fig. 4 shows the turnbuckle 60 in a snap-in position after rotation. In the illustrated embodiment, in the placement illustrated in fig. 3 and 4, the insulation 40 is rotated clockwise from the assembled position to the engaged position during assembly to rotationally engage the swivel button 60 to the button structure 50. Of course, if needed and/or desired, the clasp position 50 and swivel clasp 60 may be rationally arranged such that the insulation 40 will need to be rotated in a counter-clockwise direction from the assembled position to the snapped position during assembly to rotationally snap-lock the swivel clasp 60 to the clasp position 50.

The heat insulating member 40 of the present embodiment adopts the clamping structure of the rotary buckle 60, and is connected with the liner 10 in a rotary clamping assembly mode, the clamping structure is not easily damaged in the assembly process, and the elasticity requirement is low, so that the problem of fracture of the clamping structure such as the buckle can be effectively avoided. And the reliability of connection is higher, stable and reliable connection can be maintained without screw auxiliary fixation, and the assembly efficiency is high. The material of the heat insulating member 40 may be not limited, and may be a plastic material having a small hardness, or may be a plastic having a high hardness such as PPS, thereby reducing the material cost.

The rotary buckles 60 are in one-to-one correspondence with the buckle position structures 50. The illustrated embodiment schematically shows that the insulation 40 is provided with four swivel buttons and correspondingly the liner 10 is provided with four button-bit arrangements. Of course, the number of the rotary buckle 60 and the buckle position structure 50 is not limited, and may be set as needed.

As shown in fig. 2, 5 and 6, the heat insulation board 20 may be provided with a plurality of connection pins 21 at intervals. The connector extends upwardly. The heat insulating member 40 may be provided with a plurality of receiving grooves 41 and pass-through holes 42 connected to the receiving grooves 41 at intervals. The receiving groove 41 is recessed from the upper surface of the heat insulating member 40. The through hole 42 may be located radially outward of the receiving groove 41. The connecting pin 21 is inserted through the insertion hole 42 and bent into the receiving groove 41. Further, the bent connecting pins 21 are clamped at the receiving slots 41 to firmly and reliably fix the insulation board 20 and the heat insulation member 40 together, so that the fixing structure is simple, the insulation board 20 and the heat insulation member 40 are convenient to manufacture, and the assembly efficiency can be improved by assembling the insulation board 20 and the heat insulation member 40 to the inner liner 10 in a component mode.

The insulation 40 is configured to have a circular outer contour, such as a full or an hypoid outer contour. Alternatively, the insulation 40 is configured to have an outer contour of a circular arc shape. The swivel fastener 60 is provided at least on the outer peripheral portion of the heat insulator 40, and thereby, at least the outer peripheral portion of the heat insulator 40 and the liner 10 can be reliably connected to each other, and the connection between the two can be made more stable and reliable.

One embodiment is, for example, the illustrated embodiment, the insulation 40 is an annular member and the outer contour is a full circle. In this aspect, the insulation 40 may be provided with an insulation through hole 43. The steam passage member 32 is provided through the heat insulator through hole 43. Another embodiment, not shown, is that the insulation 40 is an annular member and the outer contour is an out-of-round shape. In this aspect, the insulating member 40 may be provided with a relief notch. The steam passage member 32 is provided in the escape notch. In a further embodiment, not shown, the heat shield 40 is a plate-like element and has a rounded outer contour. In this aspect, the insulation 40 may be provided with an insulation through hole 43. The steam passage member 32 is provided through the heat insulator through hole 43. In a further embodiment, not shown, the heat shield 40 is a plate-shaped component and has an outer contour that is in the shape of a segment circle. In this aspect, the insulating member 40 may be provided with a relief notch. The steam passage member 32 is provided in the escape notch.

The outer contour of the insulation board 20 is adapted to the outer contour shape of the heat insulation member 40, and may be, for example, a complete circle or an unbroken circle.

As shown in fig. 5 and 6, the swivel button 60 can extend upward from the upper surface of the heat insulating member 40, and includes a button body 61 and a male button 62 protruding from the button body 61. Specifically, the cam buckle 62 protrudes from the buckle body 61 in the radial direction. Illustratively, the cam buckle 62 may protrude radially inwardly from the buckle body 61, and the cam buckle 62 may also protrude radially outwardly from the buckle body 61 if needed and/or desired. The opposite side of the button body 61 from the male button 62 may be provided with a reinforcing rib 64 to enhance the structural strength of the rotary button 60.

The heat insulating member 40 may be further provided with a boss 44 protruding from the upper surface, the boss 44 may be annular, and the boss 44 may be located radially inward and/or outward of the spin button 60. The boss 44 can abut the inside of the liner 10 (see fig. 1 and 9). Therefore, the lining 10 is clamped between the boss 44 and the convex buckle 62, so that the heat insulating piece 40 is firmly and reliably connected with the lining 10 in the vertical direction, the heat insulating piece is not easy to separate from the lining 10, and the part of the heat insulating piece 40, which is abutted against the lining 10, is less, the material consumption of the heat insulating piece 40 can be reduced, and the material cost is reduced. The bent connecting leg 21 does not protrude from the boss 44.

As shown in fig. 7 and 8, the liner 10 includes a body wall 11. In the illustrated embodiment, the snap structure 50 may include a receiving opening 51 and a receiving opening edge 52 that open into the body wall 11. The button body 61 and the male button 62 are able to penetrate through the receiving opening 51, and the male button 62 is snap-engageable to the receiving opening edge 52, specifically the receiving opening edge 52 outside the liner 10, after rotation. The buckling structure 50 is formed by means of the main body wall 11 of the liner 10, the rotary buckle 60 penetrates through the main body wall 11 and is clamped to the outer side or the upper side of the main body wall 11, and the buckling structure 50 is simple and convenient to manufacture the liner 10.

The receiving opening 51 includes a first receiving opening 53 and a second receiving opening 54 connected to each other. The second receiving opening 54 protrudes radially from the first receiving opening 53. The protruding direction of the second receiving opening 54 with respect to the first receiving opening 53 is the same as the protruding direction of the cam buckle 62 with respect to the buckle body 61. Specifically, in the case where the male buckle 62 is located radially inward of the buckle main body 61, the second receiving opening 54 is located radially inward of the first receiving opening 53; in the case where the male buckle 62 is located radially outward of the buckle body 61, the second receiving opening 54 is located radially outward of the first receiving opening 53. The button body 61 penetrates and passes into the first receiving opening 53, and the size of the first receiving opening 53 in the circumferential direction is larger than the size of the button body 61, so that the button body 61 can move in the circumferential direction within the first receiving opening 53. The tab 62 penetrates through the second receiving opening 54, the second receiving opening 54 having a smaller dimension in the circumferential direction than the first receiving opening 53, such that the tab 62 can snap into the receiving opening edge 52 after rotation.

The first receiving opening 53 is elongated, and its radial dimension is adapted to the dimension of the rotary buckle 60. The shape of the second receiving opening 54 is adapted to the shape of the cam buckle 62, for example the cam buckle 62 has an arcuate portion 63 and the second receiving opening 54 also has an arcuate shape.

Referring back to fig. 3 and 4, the liner 10 is also provided with at least one rotational fastener 70. The rotational fasteners 70 can be disposed proximate to the buckle location structure 50. The illustrated embodiment schematically shows one rotational fastener 70 located at one of the four snap features 50. Of course, two or more rotational fasteners 70 may be provided and located at the corresponding snap features 50, respectively, if needed and/or desired. The rotation fixing member 70 is engaged with the rotation buckle 60 at the rotated engagement position to restrict movement of the rotation buckle 60 in the circumferential direction. For the illustrated embodiment, the rotational mount 70 may be attached to an outer or upper surface of the body wall 11. For example, the rotational fixture 70 may be integrally formed with the body wall 11 or constructed as a separate member and connected to the body wall 11.

By providing the rotation fixing member 70, the rotation buckle 60 located at the clamping position can be limited to move relative to the inner liner 10 in the circumferential direction, so that the rotation buckle 60 is kept at the clamping position, the rotation buckle 60 is prevented from being tripped from the buckling structure 50, and the connection reliability of the heat insulating member 40 and the inner liner 10 is further improved.

As shown in fig. 7 and 8, the spin button 60 may have a first side F11 facing the direction of rotation thereof and a second side F12 facing away from the direction of rotation. Further, the first side F11 and the second side F12 are opposite to each other. The rotational fixture 70 may comprise a first stop 71 and/or a second stop 72, with the illustrated embodiment, both the first stop 71 and the second stop 72 being provided spaced apart in the circumferential direction. The first stopper 71 abuts against the second side surface F12 when the turnbuckle 60 is in the engaged position, and the second stopper 72 abuts against the first side surface F11 when the turnbuckle 60 is in the engaged position. During rotation, the cam buckle 62 may be screwed into the region between the first stop 71 and the second stop 72 via the first stop 71, after which the cam buckle 62 is located between the first stop 71 and the second stop 72. That is, the cam buckle 62 can be located between the first stop portion 71 and the second stop portion 72 when the rotation buckle 60 is located at the engagement position.

In the present embodiment, the first stop portion 71 can prevent the rotation buckle 60 from rotating reversely, prevent the rotation buckle 60 from being disengaged from the locking position by reverse rotation, and ensure that the rotation buckle 60 is stably and reliably maintained at the locking position. The second stop portion 72 can prevent the rotary buckle 60 rotated to the locking position from continuing to rotate along the rotation direction, so as to prevent the rotary buckle 60 from rotating out of the locking position along the rotation direction due to a large rotation force, and improve the assembly efficiency.

The first stopper 71 and the second stopper 72 may be independent from each other or may be formed as one body connected to each other. In the illustrated embodiment, as shown in fig. 7 and 8, the two stops are shown schematically connected to each other. Specifically, the rotation fixing member 70 further includes a connection portion 73, and the first stopper portion 71 is connected to the second stopper portion 72 through the connection portion 73. By providing the connection portion 73, the structural strength of the two stopper portions of the rotation fixing member 70 can be improved, and the rotation of the rotation buckle 60 located at the engagement position can be effectively prevented even when the rotation buckle is used for a long time. The connecting portion 73 forms a rotation stopping groove 74 together with the two stopping portions, and the rotating buckle 60 is clamped to the buckling structure 50, and the protruding buckle 62 can be limited in the rotation stopping groove 74.

The first stop 71 and the second stop 72 each have a proximal end in the radial direction, which is close to the intermediate position of the liner 10, and a distal end, which is distant from said intermediate position of the liner 10. The intermediate position of the inner liner 10 corresponds to the center of rotation of the insulation 40. The distal end of the second stopper 72 may protrude from the distal end of the first stopper 71 in the radial direction. That is, the distance from the distal end of the second stopper 72 to the intermediate position of the liner 10 is greater than the distance from the distal end of the first stopper 71 to the intermediate position of the liner 10. Thus, the dimension of the cam buckle 62 overlapping the first stopper 71 in the radial direction is small, so that the first stopper 71 not only has the ability to block the cam buckle 62 located at the engagement position, but also allows the cam buckle 62 to be easily rotated across the first stopper 71 to the engagement position.

The first stop 71 may be provided with a first guide surface F21 and/or a second guide surface F22 that are curved or beveled, and for the illustrated embodiment, both the first guide surface F21 and the second guide surface F22 are provided and are curved. The first guide surface F21 faces away from the rotation direction, and the cam buckle 62 can be easily rotated along the first guide surface F21 to the most distal end of the first stop portion 71 and then screwed into the engagement position. The second guide surface F22 faces the rotation direction, and the cam buckle 62 can be easily screwed into the engaged position from the distal-most end of the first stopper 71 along the second guide surface F22. In this way, the rotational force for the turnbuckle 60 can be smaller, the turning operation can be easier to perform, and damage to the cam buckle 62 and the first blocking portion by the turning operation can be reduced. Further, the first guide surface F21 and the second guide surface F22 are opposite to each other.

The cam buckle 62 is provided with a first mating surface F31 and/or a second mating surface F32 that are curved, and for the illustrated embodiment, both the first mating surface F31 and the second mating surface F32 are curved, thereby forming a curved portion 63. The first mating surface F31 faces the rotation direction to contact with the first guide surface F21 during rotation of the rotary buckle 60, and thus, there is soft contact between the cam buckle 62 and the first guide surface F21 of the first stopper 71, so that not only can the cam buckle 62 be easily rotated to the most distal end of the first stopper 71 and then screwed into the engaged position, but also damage to the cam buckle 62 and the first stopper by the rotation operation can be further reduced. The second mating surface F32 faces away from the rotation direction to contact with the second guiding surface F22 during the rotation of the turnbuckle 60, so that there is soft contact between the cam buckle 62 and the second guiding surface F22 of the first stop portion 71, not only the cam buckle 62 is easily screwed into the engagement position from the most distal end of the first stop portion 71, but also damage to the cam buckle 62 and the first stop portion due to the rotation operation can be further reduced. Further, the first mating surface F31 and the second mating surface F32 are opposite to each other.

The rotation stopping groove 74 may be formed in an arc shape, and the arc-shaped portion 63 of the cam buckle 62 can be adapted to the shape of the rotation stopping groove 74.

In the illustrated embodiment, as shown in fig. 9, the liner 10 is provided with a liner through hole 12, and the insulation board 20 is provided with an insulation board through hole 22 and an annular support wall 23 extending upward from the edge of the insulation board through hole 22. The insulation board through-hole 22 corresponds to a position inside the insulation board through-hole 43, and further, the aperture of the insulation board through-hole 22 and the lining through-hole 12 is smaller than the aperture of the insulation board through-hole 43. The support wall 23 may extend within the insulator through-hole 43. The steam passage member 32 is provided through the liner through hole 12, the heat insulator through hole 43, and the heat insulation plate through hole 22, and is supported at the support wall 23. In fig. 9, two steam channel members 32 are shown, which are arranged one above the other and connected to each other, wherein the steam channel member 32 located at the lower side is fixed to the support wall 23.

Referring back to fig. 2-4, the thermal insulation board 20 may also be provided with upwardly extending grounding feet 24. The ground leg 24 passes upwardly out through the other pass-through hole 42. Liner 10 may be provided with relief openings 55. The ground leg 24 is passed out through the escape opening 55. The size of the escape openings 55 in the circumferential direction is larger than the size of the ground leg 24, so that the ground leg 24 can move in the circumferential direction within the escape openings 55.

Second embodiment

The cover of the second embodiment will be described below with reference to fig. 10 and 11. The cover of the second embodiment has the same structure and/or construction as the cover of the first embodiment except for the rotation fixture 70. Accordingly, elements having substantially the same functions as those in the first embodiment will be identically numbered herein, and will not be described and/or illustrated in detail for the sake of brevity.

As shown in fig. 10 and 11, the rotation fixture 70 includes a first stopper 71 and a second stopper 72, which are independent from each other. That is, the connecting portion 73 is not provided between the first stopper portion 71 and the second stopper portion 72. The shape of the first stop 71 and the shape of the second stop 72 may be the same or different. For example, the first stop portion 71 has a cylindrical shape, the second stop portion 72 has a rectangular parallelepiped shape, and a longitudinal side surface thereof can abut against the cam buckle 62. Of course, the shapes of the first stopper 71 and the second stopper 72 are not limited, and may be arbitrarily set as needed. The size of the first stopper 71 protruding from the body wall 11 and the size of the second stopper 72 protruding from the body wall 11 may be the same or different.

The first stopper 71 may have a larger dimension in the circumferential direction than the second stopper 72. It is possible to facilitate the first stopper portion 71 to form a guide surface having a gentle slope, and the second stopper portion 72 has a smaller size in the circumferential direction, reducing the material cost. For the illustrated embodiment, the diameter of the first stop 71 of the second stop 72 may be greater than the thickness of the second stop 72.

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 utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described by way of the above embodiments, but it should be understood that the above embodiments are for illustrative and explanatory purposes only and that the utility model is not limited to the above embodiments, but is capable of numerous variations and modifications in accordance with the teachings of the utility model, all of which fall within the scope of the utility model as claimed.

Claims (14)

1. A cover for a cooking appliance, comprising:

the lining is provided with a plurality of buckling structures at intervals along the circumferential direction;

the top heating device is arranged on the lower side of the lining; and

the heat insulation piece is arranged on the lower side of the lining and is configured to enable the top heating device to be indirectly connected with the lining, a plurality of rotary buckles are arranged on the heat insulation piece at intervals along the circumferential direction, penetrate into the corresponding buckling structures and are rotationally clamped to the buckling structures along the circumferential direction.

2. The lid of claim 1, wherein the liner is further provided with at least one rotational fastener disposed adjacent the snap feature and in engagement with the rotational snap in a post-rotation snap-in position to limit movement of the rotational snap in the circumferential direction.

3. The cover of claim 2, wherein the swivel clasp has a first side facing in a direction of rotation thereof and a second side facing away from the direction of rotation, the swivel clasp comprises a male clasp, the swivel mount comprises a first stop portion that abuts the second side when the swivel clasp is in the clamped position and/or a second stop portion that abuts the first side when the swivel clasp is in the clamped position.

4. A cover according to claim 3, wherein the rotational securing member includes the first and second stops spaced apart in the circumferential direction, the cam being located between the first and second stops when the rotational clasp is in the snap position.

5. The cover of claim 4, wherein the cover comprises a plurality of protrusions,

the first stop part and the second stop part are independent, or

The rotary fixing piece further comprises a connecting part, and the first stopping part is connected with the second stopping part through the connecting part.

6. The cover of claim 4, wherein the first stop and the second stop each have a proximal end in a radial direction proximate to a center location of the liner and a distal end distal from the center location of the liner, the distal end of the second stop protruding in a radial direction beyond the distal end of the first stop, wherein the center location of the liner corresponds to a center of rotation of the insulation.

7. A cover according to claim 3, wherein the first stop is provided with a first guide surface and/or a second guide surface being arc-shaped or inclined, the first guide surface facing away from the direction of rotation, the second guide surface facing in the direction of rotation.

8. The cover according to claim 7, wherein the male buckle is provided with a first mating surface and/or a second mating surface having an arc shape, the first mating surface facing the rotational direction to be in contact with the first guide surface during rotation of the rotational buckle, the second mating surface facing away from the rotational direction to be in contact with the second guide surface during rotation of the rotational buckle.

9. The lid of any one of claims 1-8, wherein the liner comprises a body wall, the clasp comprises a receiving opening and a receiving opening edge open to the body wall, the swivel clasp comprises a clasp body and a tab protruding from the clasp body, the clasp body and the tab penetrate through the receiving opening, and the tab is snap-fit to the receiving opening edge.

10. The cover of claim 9, wherein the receiving opening comprises a first receiving opening and a second receiving opening connected to each other, the second receiving opening protrudes radially from the first receiving opening, the button body is threaded into the first receiving opening, a dimension of the first receiving opening in the circumferential direction is larger than a dimension of the button body, the male button is threaded through the second receiving opening, and a dimension of the second receiving opening in the circumferential direction is smaller than a dimension of the first receiving opening.

11. The cover according to any one of claims 1 to 8, wherein,

the heat insulating piece is configured to have a circular or circular arc-shaped outer contour, and the rotary buckle is arranged at least on the outer periphery of the heat insulating piece; and/or

The circumferential direction is defined based on a center of rotation of the heat insulator; and/or

The rotary buckle extends upwards from the upper surface of the heat insulating piece, a boss protruding out of the upper surface is further arranged on the heat insulating piece, and the boss is in butt joint with the inner side of the lining.

12. A cover as claimed in any one of claims 1 to 8, wherein the heat shield is an annular or plate-like member provided with one of a heat shield through-hole and a relief gap, the cover comprising a steam channel member passing through the one of the heat shield through-hole and the relief gap.

13. The cover of any one of claims 1 to 8, further comprising an insulation board provided on an underside of the top heating device and connected with the heat insulating member, the top heating device being fixed to one of the heat insulating member and the insulation board.

14. A cooking appliance comprising a pot and a lid according to any one of claims 1 to 13, the lid being openably and closably provided to the pot to form a cooking space between the lid and the pot.