Cover and cooking appliance

Abstract

This invention provides a lid and a cooking utensil, wherein the lid includes: a lid body with inwardly extending lid teeth, the lid teeth having opposing first and second sides in an opening direction n of the lid body, the first side of the lid teeth being located in front of the second side of the lid teeth in the opening direction n of the lid body; and a first transition member made of plastic material, the first transition member being disposed on the first side of the lid teeth, the upper surface of the first transition member gradually sloping downward in the opening direction n of the lid body. The technical solution of this invention can effectively solve the problem of easy jamming between the pot teeth and the lid teeth in related technologies.

Description

Technical Field

[0001] This invention relates to the field of small household appliances, and more specifically, to a lid and a cooking utensil. Background Technology

[0002] Pressure cookers utilize the principle that increased air pressure raises the boiling point of liquids, allowing the water in the cooking chamber to reach a higher temperature without boiling, thus accelerating the cooking process.

[0003] Most modern cooking appliances consist of a lid and a main body. When pressure cooking is required, the lid must be locked onto the main body to ensure proper pressure build-up. The lid has a lid tooth, and the main body has a pot tooth. To lock the lid, the lid tooth must be rotated to the underside of the pot tooth. As the pressure inside the appliance increases, the steam pushes the lid upwards, causing it to tend to move upwards. However, because the pot tooth stops the lid tooth, the lid cannot detach from the main body.

[0004] However, currently, when the lid teeth rotate relative to the pot teeth, the pot teeth and lid teeth are prone to jamming, making it difficult to lock and unlock the lid and the appliance body, which affects the user experience. Summary of the Invention

[0005] The main objective of this invention is to provide a lid and cooking utensil to solve the problem of easy jamming of pot teeth and lid teeth in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a cover body is provided, comprising: a cover body body having an inwardly extending cover tooth, the cover tooth having a first side and a second side opposite to each other in an opening direction n of the cover body body, the first side of the cover tooth being located in front of the second side of the cover tooth in the opening direction n of the cover body body; and a first transition member made of plastic material, the first transition member being disposed on the first side of the cover tooth, the upper surface of the first transition member gradually sloping downward in the opening direction n of the cover body body.

[0007] Applying the technical solution of this invention, when the user rotates the lid to lock it, the first transition piece contacts the pot teeth before the lid teeth. Since the upper surface of the first transition piece gradually slopes downwards in the opening direction n of the lid body, the pot teeth gradually slide upwards along the upper surface of the first transition piece to above the lid teeth, thus avoiding jamming between the lid teeth and pot teeth during locking, making the locking process smoother. Furthermore, in related technologies, both the lid teeth and pot teeth are made of metal, resulting in friction between them during locking, leading to significant noise and poor locking smoothness. Applying the technical solution of this embodiment, since the first transition piece is made of plastic, compared to related technologies, the lid teeth of this embodiment generate less noise during engagement with the pot teeth. Moreover, the plastic material is softer than metal, allowing it to adapt to the shape of the metal material during friction, improving the smoothness of locking and enhancing the user experience.

[0008] Furthermore, the upper surface of the first transition piece includes an inclined plane, the angle between the inclined plane and the horizontal plane being less than 45°. In the above structure, when the lid is rotated to lock, the inclined plane contacts the pot teeth. As the lid rotates, it gradually moves downward under the action of the inclined plane, allowing the lid teeth to gradually rotate below the pot teeth, thus preventing jamming between the lid teeth and the pot teeth. If the angle between the inclined plane and the horizontal plane is too large, the squeezing force of the pot teeth on the inclined plane increases when the lid is rotated to lock, thereby increasing the friction between the lid teeth and the pot teeth when the lid rotates. This requires the user to increase the rotational force of the lid to overcome the friction. Ultimately, this makes it difficult for the first transition piece to rotate below the pot teeth, reducing the guiding effect of the first transition piece.

[0009] Furthermore, the upper surface of the first transition piece includes an inclined surface and a transition plane, the transition plane being flush with the upper surface of the cover tooth. In the above structure, when the cover is rotated to lock, relative sliding occurs between the cover tooth and the pot tooth. The transition plane being flush with the upper surface of the cover tooth allows the pot tooth to slide more smoothly from the first transition piece to the cover tooth, thereby avoiding jamming between the cover tooth and the pot tooth.

[0010] Furthermore, the lower edge of the bevel extends to the lower surface of the lid body. This structure extends the length of the bevel, thereby increasing the probability of the pot teeth contacting the bevel and improving the smoothness of the lid locking.

[0011] Furthermore, the width of the first transition member in the circumferential direction of the lid body is between 5mm and 15mm. In the above structure, the lid body is provided with a clearance opening to avoid the pot teeth. If the width of the first transition member in the circumferential direction of the lid body is too large, the length of the clearance opening in the circumferential direction of the lid body will be compressed. Consequently, the pot teeth need to be shortened to pass through the clearance opening. A shorter pot tooth will reduce its pressure-bearing capacity. When the cooking utensil is pressed down, the pot tooth may not be able to stop the lid teeth, causing the lid to detach from the utensil body, thus causing a safety accident. If the width of the first transition member in the circumferential direction of the lid body is too small, the length of the inclined surface will be reduced and the tilt angle with the horizontal direction will be increased, thereby reducing the guiding effect of the first transition member.

[0012] Furthermore, there are multiple lid teeth, and multiple first transition pieces are provided, each corresponding to one of the lid teeth. This structure allows for a more secure locking between the lid and the appliance body. The multiple first transition pieces, each corresponding to one of the lid teeth, guide each lid tooth as it rotates relative to the pot teeth, further preventing jamming and noise between the lid teeth and pot teeth during locking, thus improving the user experience.

[0013] Furthermore, the cover also includes a connecting ring, on which multiple first transition pieces are disposed, and connected to the cover body via the connecting ring. In the above structure, the connecting ring serves to integrate the first transition pieces. After the connecting ring with the first transition pieces is installed on the cover, each first transition piece is located on the first side of its corresponding cover tooth, avoiding the need to install the first transition piece separately on the first side of each cover tooth, thus facilitating the assembly of the first transition pieces.

[0014] Furthermore, the cover body includes a front cover and an inner cover disposed within the front cover. A cover tooth is disposed on the inner cover, and a first clearance notch is provided on the first side of the inner cover corresponding to the cover tooth. A connecting ring is disposed below the front cover and located circumferentially outside the inner cover. The first transition member is an inwardly extending rib that passes through the first clearance notch. The above structure is simple and facilitates the installation of the first transition member.

[0015] Furthermore, the cover also includes multiple second transition members disposed on the connecting ring. Each second transition member corresponds one-to-one with a multiple cover tooth. The second transition members are made of plastic material and are disposed on the second side of their corresponding cover teeth. The upper surface of the second transition member gradually slopes upward in the opening direction n of the cover body. The inner cover has a second clearance notch on the second side corresponding to the cover tooth. The second transition member is an inwardly extending rib that passes through the second clearance notch. Alternatively, the edge of the second side of the cover tooth connects to the inner cover. This structure improves versatility, allowing a cover with an installation direction opposite to that of this embodiment to achieve improved locking smoothness and reduced noise after the connecting ring of this embodiment is installed.

[0016] According to another aspect of the present invention, a cooking utensil is provided, comprising: an utensil body; and a lid, which is disposed on the utensil body, the lid being the aforementioned lid. In the above structure, since the lid has the advantage of smooth locking and unlocking, the cooking utensil having it also possesses the aforementioned advantages.

[0017] Furthermore, the appliance body includes an outer shell, a heat-insulating cover, and an inner pot arranged sequentially from the outside to the inside. The outer shell includes a housing and a middle plate disposed on the top of the housing. An upwardly extending support rib is provided on the middle plate, supporting the heat-insulating cover. In the above structure, the pot teeth are disposed on the heat-insulating cover. Because the lid is provided with a first transition piece and a second transition piece, there will be no jamming between the pot teeth and the lid teeth when the lid and the appliance body are locked together. Therefore, the support ring below the pot teeth in the original structure can be eliminated, thereby saving production costs. To replace the supporting effect of the support ring, an upwardly extending support rib is provided on the middle plate. The support rib can abut against the lower surface of the pot teeth, thereby providing support for the heat-insulating cover. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the cover according to the present invention is shown;

[0020] Figure 2 It shows Figure 1 An enlarged structural diagram of point A on the cover;

[0021] Figure 3 It shows Figure 1 A schematic diagram of the split structure of the cover;

[0022] Figure 4 It shows Figure 3An enlarged structural diagram of point D on the cover;

[0023] Figure 5 It shows Figure 3 A three-dimensional structural diagram of the connecting ring, the first transition piece, and the second transition piece of the cover body;

[0024] Figure 6 It shows Figure 5 An enlarged structural diagram of point B on the cover;

[0025] Figure 7 A longitudinal sectional view of an embodiment of a cooking appliance according to the present invention is shown; and

[0026] Figure 8 It shows Figure 7 An enlarged structural diagram of point C of the cooking appliance.

[0027] The above figures include the following reference numerals:

[0028] 10. Lid body; 11. Top cover; 12. Inner cover; 121. First clearance notch; 122. Second clearance notch; 20. Lid tooth; 30. First transition piece; 31. Inclined surface; 32. Transition plane; 40. Connecting ring; 50. Second transition piece; 60. Appliance body; 70. Lid; 80. Outer shell; 81. Shell; 82. Middle plate; 83. Support rib; 90. Insulation cover; 91. Pot tooth; 100. Inner pot. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figure 1 , Figure 2 and Figure 6 As shown, the cover of this embodiment includes a cover body 10 and a first transition member 30. The cover body 10 has an inwardly extending cover tooth 20, which has a first side and a second side opposite to each other in the opening direction n of the cover body 10. The first side of the cover tooth 20 is located in front of the second side of the cover tooth 20 in the opening direction n of the cover body 10. The first transition member 30 is made of plastic material and is disposed on the first side of the cover tooth 20. The upper surface of the first transition member 30 gradually slopes downward in the opening direction n of the cover body 10.

[0031] Applying the technical solution of this embodiment, when the user rotates the lid to lock it, the first transition member 30 contacts the pot tooth before the lid tooth 20. Since the upper surface of the first transition member 30 gradually slopes downwards in the opening direction n of the lid body 10, the pot tooth gradually slides upwards along the upper surface of the first transition member 30 to above the lid tooth 20, thus avoiding jamming between the lid tooth 20 and the pot tooth during locking, making the locking process smoother. Furthermore, in related technologies, both the lid tooth and the pot tooth are made of metal, resulting in friction between them during locking, leading to significant noise and poor locking smoothness. Applying the technical solution of this embodiment, since the first transition member 30 is made of plastic, compared to related technologies, the lid tooth of this embodiment generates less noise during engagement with the pot tooth. Moreover, the plastic material is softer than metal, allowing it to adapt to the shape of the metal material during friction, improving the smoothness of locking and enhancing the user experience.

[0032] like Figure 2 and Figure 6 As shown, in this embodiment, the upper surface of the first transition member 30 includes an inclined surface 31, and the angle between the inclined surface 31 and the horizontal plane is less than 45°. In the above structure, when the lid is rotated to lock, the inclined surface 31 contacts the pot teeth. As the lid rotates, the lid gradually moves downward under the action of the inclined surface 31, thereby allowing the lid teeth 20 to gradually rotate below the pot teeth, thus avoiding jamming between the lid teeth 20 and the pot teeth. If the angle between the inclined surface 31 and the horizontal plane is too large, when the lid is rotated to lock, the squeezing force of the pot teeth on the inclined surface 31 increases, thereby increasing the friction between the lid teeth and the pot teeth when the lid rotates, and thus requiring the user to increase the rotational force of the lid to overcome the friction. Ultimately, this makes it difficult for the first transition member 30 to rotate below the pot teeth, reducing the guiding effect of the first transition member 30.

[0033] like Figure 2 and Figure 6 As shown, in this embodiment, the upper surface of the first transition member 30 includes an inclined surface 31 and a transition plane 32, which is flush with the upper surface of the cover tooth 20. In the above structure, when the cover is rotated to lock, relative sliding occurs between the cover tooth 20 and the pot tooth. The flushness of the transition plane 32 with the upper surface of the cover tooth 20 allows the pot tooth to slide more smoothly from the first transition member 30 to the cover tooth 20, thereby avoiding jamming between the cover tooth 20 and the pot tooth.

[0034] like Figure 2 and Figure 6As shown, in this embodiment, the lower edge of the inclined surface 31 extends to the lower surface of the cover body 10. In the above structure, when locking the cover, the first transition member 30 preferentially contacts the pot teeth, and the edge of the pot teeth can directly abut against the inclined surface 31. As the cover continues to rotate in the locking direction, the cover gradually moves downward under the guidance of the inclined surface 31, thereby avoiding interference between the side edge of the cover teeth 20 and the pot teeth, which would lead to jamming. The above structure can extend the length of the inclined surface 31, thereby increasing the probability of contact between the pot teeth and the inclined surface 31 and improving the smoothness of locking the cover.

[0035] like Figure 3 and Figure 4 As shown, in this embodiment, the width of the first transition member 30 in the circumferential direction of the lid body 10 is between 5mm and 15mm. In the above structure, the lid body 10 is provided with a clearance opening to avoid the pot teeth. If the width of the first transition member 30 in the circumferential direction of the lid body 10 is too large, the length of the clearance opening in the circumferential direction of the lid body 10 will be compressed. Correspondingly, the pot teeth need to be shortened to pass through the clearance opening. The shortening of the pot teeth will reduce the pressure-bearing capacity of the pot teeth. When the cooking utensil is pressed down, the pot teeth may not be able to stop the lid teeth, causing the lid to fall off the utensil body, thus causing a safety accident. If the width of the first transition member 30 in the circumferential direction of the lid body 10 is too small, the length of the inclined surface 31 will be reduced and the tilt angle with the horizontal direction will be increased, thereby reducing the guiding effect of the first transition member 30.

[0036] like Figure 1 As shown, in this embodiment, there are multiple lid teeth 20, and multiple first transition members 30 corresponding to each lid tooth 20. In the above structure, multiple lid teeth 20 are provided, and the number of pot teeth is the same as the number of lid teeth. The above structure enables the lid and the utensil body to lock more securely. The multiple first transition members 30 corresponding to each lid tooth 20 allow each lid tooth to be guided by the first transition member 30 when rotating relative to the pot teeth, further preventing jamming and noise between the lid teeth and pot teeth when the lid is locked, thus improving the user experience.

[0037] like Figure 3 and Figure 5As shown, in this embodiment, the cover also includes a connecting ring 40, and a plurality of first transition members 30 are disposed on the connecting ring 40. The plurality of first transition members 30 are connected to the cover body 10 through the connecting ring 40. In the above structure, since there are multiple cover teeth 20, correspondingly, there are multiple first transition members 30 that correspond one-to-one with each cover tooth 20. The connecting ring 40 can integrate the first transition members 30. After the connecting ring 40 with the first transition members 30 is installed on the cover, each first transition member 30 is located on the first side of the corresponding cover tooth 20, avoiding the need to install the first transition member 30 separately on the first side of each cover tooth 20, thereby facilitating the assembly of the first transition members 30. It should be noted that the connecting ring 40 and the first transition members 30 are integrally formed.

[0038] like Figure 1 As shown, in this embodiment, the cover body 10 includes a front cover 11 and an inner cover 12 disposed within the front cover 11. A cover tooth 20 is disposed on the inner cover 12. A first clearance notch 121 is provided on the first side of the inner cover 12 corresponding to the cover tooth 20. A connecting ring 40 is disposed below the front cover 11 and located circumferentially outside the inner cover 12. A first transition member 30 is an inwardly extending rib that passes through the first clearance notch 121. In this structure, when the connecting ring 40 is installed on the front cover 11, the first transition member 30 can extend into the first clearance notch 121, allowing it to be located on the first side of the cover tooth 20, thus guiding the cover tooth 20. This structure is simple and facilitates the installation of the first transition member 30.

[0039] like Figure 3 As shown, in this embodiment, the cover also includes a plurality of second transition members 50 disposed on the connecting ring 40. Each of the second transition members 50 corresponds to a plurality of cover teeth 20. The second transition members 50 are made of plastic material and are disposed on the second side of their corresponding cover teeth 20. The upper surface of the second transition member 50 gradually slopes upward in the opening direction n of the cover body 10. A second clearance notch 122 is provided on the second side of the inner cover 12 corresponding to the cover teeth 20. The second transition member 50 is an inwardly extending rib, passing through the second clearance notch 122. This structure improves versatility, allowing a cover with an installation direction opposite to that of this embodiment to achieve improved locking smoothness and reduced noise after the connecting ring 40 of this embodiment is installed.

[0040] It should be noted that the first transition piece 30, the connecting ring 40, and the second transition piece 50 are integrally formed. Of course, in other embodiments not shown in the figure, the edge of the second side of the cover tooth 20 can be connected to the inner cover 12, meaning that the second side of the cover tooth 20 does not have a second transition piece 50. The above structure, while achieving the goals of improving the smoothness of the locking mechanism and reducing noise, also enhances the strength of the cover tooth 20, reduces the probability of deformation after long-term use, and extends the service life of the cover.

[0041] like Figure 7 and Figure 8 As shown, this application also includes a cooking utensil. An embodiment of the cooking utensil of this application includes: an utensil body 60 and a lid 70, with the lid 70 covering the utensil body 60. The lid 70 is the lid described above. In the above structure, since the lid 70 has the advantage of smooth locking and unlocking, the cooking utensil having it also possesses the aforementioned advantages.

[0042] like Figure 8 As shown, in this embodiment, the appliance body 60 includes an outer shell 80, a heat insulation cover 90, and an inner pot 100 arranged sequentially from the outside to the inside. The outer shell 80 includes a shell 81 and a middle plate 82 disposed on the top of the shell 81. The middle plate 82 is provided with an upwardly extending support rib 83, which supports the heat insulation cover 90. In the above structure, the pot tooth 91 is disposed on the heat insulation cover 90. Since the lid 70 is provided with a first transition piece 30 and a second transition piece 50, when the lid 70 and the appliance body 60 are locked, there will be no jamming between the pot tooth 91 and the lid tooth 20. Therefore, the support ring provided below the pot tooth 91 in the original structure can be eliminated, thereby saving production costs. To replace the supporting effect of the support ring, an upwardly extending support rib 83 is provided on the middle plate 82. The support rib 83 can abut against the lower surface of the pot tooth 91, thereby providing support for the heat insulation cover 90.

[0043] In this embodiment, the cooking appliance is an electric pressure cooker. Of course, in embodiments not shown in the figures, the cooking appliance can also be a rice cooker, a low-pressure rice cooker, a soy milk maker, a food processor, an electric slow cooker, a stir-fry machine, a multi-functional cooker, or other similar products.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cover body, characterized in that, include: The cover body (10) is provided with an inwardly extending cover tooth (20). The cover tooth (20) has a first side and a second side opposite to each other in the opening direction n of the cover body (10). The first side of the cover tooth (20) is located in front of the second side of the cover tooth (20) in the opening direction n of the cover body (10). The first transition piece (30) is made of plastic material and is disposed on the first side of the cap tooth (20). The upper surface of the first transition piece (30) gradually slopes downward in the opening direction n of the cap body (10). The upper surface of the first transition piece (30) includes a slope (31).

2. The cover according to claim 1, characterized in that, The angle between the inclined plane (31) and the horizontal plane is less than 45°.

3. The cover according to claim 1, characterized in that, The upper surface of the first transition member (30) also includes a transition plane (32), which is flush with the upper surface of the cap tooth (20).

4. The cover according to claim 2 or 3, characterized in that, The lower edge of the inclined surface (31) extends to the lower surface of the cover body (10).

5. The cover according to claim 1, characterized in that, The width of the first transition member (30) in the circumferential direction of the cover body (10) is between 5 mm and 15 mm.

6. The cover according to claim 1, characterized in that, There are multiple cap teeth (20), and the first transition piece (30) is a plurality of pieces that are configured one-to-one with the cap teeth (20).

7. The cover according to claim 6, characterized in that, The cover also includes a connecting ring (40), and a plurality of first transition pieces (30) are disposed on the connecting ring (40). The plurality of first transition pieces (30) are connected to the cover body (10) through the connecting ring (40).

8. The cover according to claim 7, characterized in that, The cover body (10) includes a face cover (11) and an inner cover (12) disposed inside the face cover (11). The cover tooth (20) is disposed on the inner cover (12). A first clearance notch (121) is provided on the first side of the inner cover (12) corresponding to the cover tooth (20). The connecting ring (40) is disposed below the face cover (11) and located on the circumferential outer side of the inner cover (12). The first transition member (30) is an inwardly extending rib. The first transition member (30) passes through the first clearance notch (121).

9. The cover according to claim 8, characterized in that, The cover also includes a plurality of second transition pieces (50) disposed on the connecting ring (40). The plurality of second transition pieces (50) are disposed one-to-one with the plurality of cover teeth (20). The second transition pieces (50) are made of plastic material and are disposed on the second side of the cover teeth (20) corresponding to them. The upper surface of the second transition piece (50) gradually slopes upward in the opening direction n of the cover body (10). The inner cover (12) is provided with a second clearance notch (122) on the second side corresponding to the cover teeth (20). The second transition piece (50) is an inwardly extending rib. The second transition piece (50) passes through the second clearance notch (122), or... The edge of the second side of the cap tooth (20) is connected to the inner cap (12).

10. A cooking utensil, comprising: Appliance body (60); A cover (70) is provided on the appliance body (60), characterized in that the cover (70) is the cover according to any one of claims 1 to 9.

11. The cooking utensil according to claim 10, characterized in that, The appliance body (60) includes an outer shell (80), a heat insulation cover (90), and an inner pot (100) arranged sequentially from the outside to the inside. The outer shell (80) includes a shell (81) and a middle plate (82) disposed on the top of the shell (81). The middle plate (82) is provided with an upwardly extending support rib (83), which supports the heat insulation cover (90).

Images