Pot cover assembly and cooking utensils

Abstract

The present invention provides a pot cover assembly and a cooking utensil. The pot cover assembly comprises: an inner lining assembly; an inner cover, the inner cover is installed at the bottom of the inner lining assembly, the inner cover comprises a cover plate portion and a flange arranged at the outer periphery of the cover plate portion, the flange is turned toward the bottom of the cover plate portion, the longitudinal section of the flange is arranged in a stepped structure, and the number of steps of the stepped structure is less than 3. Compared with the pot cover assembly in the prior art, the number of steps of the longitudinal section of the flange at the outer edge of the inner cover of the pot cover assembly in the present invention is less than 3, which can reduce the thickness of the inner cover in the present invention to a certain extent, and then reduce the thickness of the entire pot cover assembly, reduce the volume of the pot cover assembly, and in actual production, the reduction of the thickness of the pot cover leads to a reduction in the stretching depth of the pot cover, which increases the production qualification rate of the pot cover assembly, and in addition, reducing the thickness of the pot cover sheet can reduce the material used for the pot cover assembly, thereby reducing the production cost of the pot cover assembly in the present invention.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a pot cover assembly and a cooking utensil. Background Art

[0002] The electric pressure cooker is an upgraded product of the traditional pressure cooker and rice cooker. It combines the advantages of pressure cookers and rice cookers, completely solves the safety problems of pressure cookers, and eliminates the safety hazards of ordinary pressure cookers that have troubled consumers for many years. Its thermal efficiency is greater than 80%, saving time and electricity.

[0003] Most of the existing electric pressure cookers have three steps on the outer edge of the pot cover assembly. The pot cover assembly with three steps is thick, which makes the electric pressure cooker overall high, making the electric pressure cooker look bulky and unsightly, and the production cost of the product is high. Summary of the invention

[0004] The main purpose of the present invention is to provide a pot cover assembly and a cooking utensil to solve the problems of heavy pot cover assembly and high production cost.

[0005] In order to achieve the above object, according to one aspect of the present invention, a pot cover assembly is provided, comprising: a lining assembly; an inner cover, the inner cover being mounted at the bottom of the lining assembly, the inner cover comprising a cover plate portion and a flange arranged at the outer periphery of the cover plate portion, the flange being turned toward the bottom of the cover plate portion, the longitudinal section of the flange being arranged in a stepped structure, and the number of steps of the stepped structure being less than 3. Compared with the pot cover assembly in the prior art, the number of steps of the longitudinal section of the flange at the outer edge of the inner cover of the pot cover assembly in the present invention is less than 3, which can reduce the thickness of the inner cover in the present invention to a certain extent, thereby reducing the thickness of the entire pot cover assembly and reducing the volume of the pot cover assembly. In actual production, the reduction in the thickness of the pot cover leads to a reduction in the stretching depth of the pot cover, which increases the production qualification rate of the pot cover assembly, and in addition, the reduction in the thickness of the pot cover sheet can reduce the material used for the pot cover assembly, thereby reducing the production cost of the pot cover assembly in the present invention.

[0006] Furthermore, an annular protrusion is provided at the position where the flange is connected to the cover plate portion, and the annular protrusion is located at the bottom of the inner cover, so as to facilitate cooperation with the sealing ring on the pot cover assembly and ensure the sealing reliability of the sealing ring.

[0007] Furthermore, an annular groove corresponding to the annular protrusion is provided on one side of the cover plate away from the annular protrusion, the cover plate is connected to the top of the inner peripheral side wall of the annular groove, and the flange is connected to the top of the outer peripheral side wall of the annular groove. In the actual production process, the annular groove can be stamped on the inner cover by stamping, and at this time, an annular protrusion is correspondingly formed on the bottom of the inner cover, which has a simple structure and is easy to process.

[0008] Furthermore, the height H of the annular protrusion is 1 mm to 3 mm. Within this numerical range, it can not only ensure that the sealing ring can be in close contact with the annular protrusion, but also reduce the stretching depth of the inner cover in actual production, thereby improving the rationality of the inner cover production.

[0009] Furthermore, the angle between the inner circumferential side wall of the annular groove and the cover plate portion is 90° to 180°, ensuring that the sealing ring can be in close contact with the bottom plate of the inner cover. The angle here refers to the angle between the bottom surface of the cover plate portion and the tangent at the top position of the inner circumferential side wall of the annular groove.

[0010] Furthermore, the longitudinal section of the inner peripheral side wall of the annular groove is a first arc surface, and the longitudinal section of the outer peripheral side wall of the annular groove is a second arc surface, and the ends of the first arc surface and the second arc surface close to each other are smoothly transitioned and connected, and the convex directions of the first arc surface and the second arc surface are opposite. This structure can prevent the inner cover from having sharp corners and scratching the sealing ring. At the same time, if the inner cover is processed by injection molding, it is also convenient for the inner cover to be demolded.

[0011] Furthermore, the cover plate portion and the flange are integrally formed, so the structure is stable and easy to process.

[0012] Furthermore, the stepped structure includes a first step and a second step, the second step is located at the bottom end of the first step, the distance from the second step to the central axis of the cover portion is greater than the distance from the first step to the central axis of the cover portion, and an inner hook is provided at the bottom end of the stepped structure to facilitate buckling the pot cover assembly onto the insulation cover on the pot body.

[0013] Furthermore, the pot cover assembly also includes an inner lining plate and a sealing ring. The inner lining plate is fixed to the bottom of the cover plate portion by a locking piece. The sealing ring is sleeved on the outer periphery of the inner lining plate and is pressed against the annular protrusion by the inner lining plate, thereby ensuring that the sealing ring can effectively contact the inner wall surface of the inner cover, thereby improving the sealing performance of the pot cover assembly in the present invention.

[0014] According to another aspect of the present invention, a cooking utensil is provided, comprising a pot cover assembly, wherein the pot cover assembly is the pot cover assembly described above.

[0015] By applying the technical solution of the present invention, compared with the pot cover assembly in the prior art, the number of steps of the stepped structure of the longitudinal section of the flange at the outer edge of the inner cover of the pot cover assembly in the present invention is less than 3, which can reduce the thickness of the inner cover in the present invention to a certain extent, thereby reducing the thickness of the entire pot cover assembly and reducing the volume of the pot cover assembly. In actual production, the reduction in the thickness of the pot cover leads to a reduction in the stretching depth of the pot cover, increasing the production qualification rate of the pot cover assembly, and also reducing the thickness of the pot cover sheet, which can reduce the material used for the pot cover assembly, thereby reducing the production cost of the pot cover assembly in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A cross-sectional view schematically shows a pot cover assembly of the present invention;

[0018] Figure 2 Schematically shows Figure 1 A magnified view of the M region in FIG.

[0019] Figure 3 The exploded view of the pot cover assembly of the present invention is schematically shown;

[0020] Figure 4 A three-dimensional diagram schematically shows an inner cover of a pot cover assembly of the present invention;

[0021] Figure 5 A first partial enlarged view of the inner pot of the present invention after being cut open is schematically shown;

[0022] Figure 6 A second partial enlarged view of the inner cover of the present invention after being cut open is schematically shown.

[0023] The above drawings include the following reference numerals:

[0024] 10. Inner cover; 11. Cover plate; 12. Flanged edge; 121. Inner hook; 122. First step; 123. Second step; 13. Annular protrusion; 14. Annular groove; 141. Inner peripheral side wall; 142. Outer peripheral side wall; 15. Opening angle; 20. Inner lining plate; 30. Sealing ring; 40. Inner lining assembly; 50. Locking piece. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0028] See also Figures 1 to 6 As shown, according to an embodiment of the present invention, a cooking utensil is provided. The cooking utensil in this embodiment particularly refers to cooking utensil such as an electric pressure cooker and an electric rice cooker.

[0029] The cooking device in this embodiment includes a pot body (not shown) and a pot cover assembly, wherein the pot body includes a main body, a heat preservation cover, an inner pot, and a heating assembly, wherein the heat preservation cover is arranged on the main body, the heating assembly is installed at the bottom of the heat preservation cover, and the inner pot is detachably installed in the heat preservation cover, and the inner pot installed in the heat preservation cover can be heated by the heating effect of the heating assembly, thereby facilitating the cooking of the food in the inner pot. In actual use, the pot cover assembly is buckled on the heat preservation cover to seal the inner pot, facilitating the rapid cooking of the food in the inner pot.

[0030] However, as described in the background art, most of the outer edges of the pot cover assemblies currently available on the market have three steps, which makes the overall thickness of the pot cover assembly relatively thick, looks bulky in appearance, and has high production costs.

[0031] For this purpose, the present invention provides a novel pot cover assembly, see Figures 1 to 6As shown, the pot cover assembly in this embodiment includes an inner cover 10, which includes a cover plate portion 11 and a flange 12 arranged on the outer periphery of the cover plate portion 11, and the flange 12 is turned toward the bottom of the cover plate portion 11, and the longitudinal section of the flange 12 is arranged in a stepped structure, and the number of steps of the stepped structure is less than 3. The longitudinal section of the flange 12 in this embodiment refers to the section obtained by cutting the flange 12 in a direction perpendicular to the cover plate portion 11. The bottom of the cover plate portion 11 refers to the part of the inner cover 10 close to the pot body.

[0032] Compared with the pot cover assembly in the prior art, the number of steps of the stepped structure of the longitudinal section of the flange 12 at the outer edge of the inner cover 10 of the pot cover assembly in this embodiment is less than 3, which can reduce the thickness of the inner cover 10 in this embodiment to a certain extent, and then reduce the thickness of the entire pot cover assembly, reducing the volume of the pot cover assembly. In actual production, the inner cover 10 in this embodiment is designed by a stretching process. Since the thickness of the entire pot cover assembly is reduced, the thickness of the sheet material for producing the inner cover can be reduced during processing, which can reduce the material used for the pot cover assembly, thereby reducing the production cost of the pot cover assembly in this embodiment. At the same time, the thickness of the entire pot cover assembly is reduced, and the stretching depth of the inner cover in production will also be reduced, which can improve the production qualification rate of the pot cover assembly.

[0033] The flange 12 in this embodiment refers to a structure bent at the edge of the cover portion 11. During actual processing, the flange 12 can be formed on the outer periphery of the cover portion 11 by stamping, or can be integrally formed with the cover portion 11 by injection molding. The structure is stable and reliable, which is convenient for improving the structural strength and usage stability of the inner cover 10 in this embodiment.

[0034] Of course, in other embodiments of the present invention, the flange 12 may be fixed to the outer edge of the cover portion 11 by welding or clamping. The structural strength of these two methods is reduced and the air tightness is not high enough.

[0035] Preferably, the cover portion 11 in this embodiment is a circular plate structure, which is easy to adapt to the inner pot. Of course, when the pot mouth of the inner pot is other shapes, such as square, the cover portion 11 can also be set to be square, etc. As long as it is other deformation methods under the conception of the present invention, it is within the protection scope of the present invention.

[0036] In this embodiment, an annular protrusion 13 is provided at the position where the flange 12 is connected to the cover plate portion 11. The annular protrusion 13 is located on the side of the inner cover 10 close to the flange 12, that is, the protruding direction of the annular protrusion 13 is set toward the bottom of the inner cover 10, so as to facilitate the cooperation with the sealing ring 30 on the pot cover assembly and ensure the sealing reliability of the sealing ring 30.

[0037] See also Figure 1 and Figure 2As shown, the pot cover assembly in this embodiment also includes an inner lining plate 20 and a sealing ring 30. The inner lining plate 20 is fixed to the bottom of the cover plate portion 11 by a locking member 50. The sealing ring 30 is sleeved on the outer periphery of the inner lining plate 20 and is pressed against the annular protrusion 13 by the inner lining plate 20, thereby ensuring that the sealing ring can effectively contact the inner wall surface of the inner cover 10, thereby improving the sealing performance of the pot cover assembly in this embodiment.

[0038] Specifically, the sealing ring 30 in this embodiment has a concave arc surface on one side close to the annular protrusion 13. During assembly, the sealing ring 30 is sleeved on the outer periphery of the inner lining plate 20 and then fixed to the bottom of the cover plate portion 11 through the locking member 50. During the process of tightening the locking member 50, the concave arc surface of the sealing ring 30 continuously moves toward the annular protrusion 13. The two are tightly fixed under the action of the locking member 50, and the sealing performance is good. The locking member 50 in this embodiment is a locking column or a locking screw.

[0039] See also Figures 4 to 6 As shown, the cover portion 11 in this embodiment is provided with an annular groove 14 corresponding to the annular protrusion 13 on the side away from the annular protrusion 13, the cover portion 11 is connected to the top end of the inner peripheral side wall 141 of the annular groove 14, and the flange 12 is connected to the top end of the outer peripheral side wall 142 of the annular groove 14, thereby ensuring the smoothness of the connection position of the entire inner cover 10.

[0040] In the actual production process, the annular groove 14 can be punched on the inner cover 10 by stamping. At this time, an annular protrusion 13 is correspondingly formed on the bottom of the inner cover 10, which has a simple structure and is easy to process.

[0041] Preferably, the height H of the annular protrusion 13 in this embodiment is 1 mm to 3 mm, for example 2 mm. Within this numerical range, it can not only ensure that the sealing ring 30 can be in close contact with the annular protrusion 13, but also reduce the stretching depth of the inner cover in actual production, thereby improving the reasonable rate of inner cover production.

[0042] like Figure 6 As shown, the opening angle 15 between the inner peripheral side wall 141 of the annular groove 14 and the cover plate portion 11 in this embodiment is 90° to 180°, for example, 120°, 150°, to ensure that the sealing ring 30 can be in close contact with the bottom plate of the inner cover 10. The opening angle 15 here refers to the angle between the bottom surface of the cover plate portion 11 and the tangent at the top position of the inner peripheral side wall 141 of the annular groove.

[0043] See again Figures 4 to 6As shown, the longitudinal section of the inner peripheral side wall 141 of the annular groove 14 in this embodiment is a first arc surface, and the longitudinal section of the outer peripheral side wall 142 of the annular groove 14 is a second arc surface. The ends of the first arc surface and the second arc surface close to each other are smoothly transitioned and connected, and the convex directions of the first arc surface and the second arc surface are opposite. This structure can prevent the inner cover 10 from having sharp corners and prevent the sharp corners from scratching the sealing ring 30. At the same time, if the inner cover 10 is processed by injection molding, it is also convenient for the inner cover 10 to be demolded. If the inner cover 10 is processed by stretching, it is also convenient to improve the reasonable production rate of the inner cover 10 in this embodiment in actual stretching.

[0044] In this embodiment, the convex directions of the first arc surface and the second arc surface are opposite to each other, which means that the inner cavity of the annular groove 14 can be formed into an arrangement similar to an elliptical groove, such as Figure 5 shown.

[0045] The stepped structure of the flange 12 in this embodiment includes two steps, such as Figure 5 As shown, the stepped structure in this embodiment includes a first step 122 and a second step 123, the first step 122 is connected to the cover portion 11, the second step 123 is located at the bottom of the first step 122, and the distance from the second step 123 to the central axis of the cover portion 11 is greater than the distance from the first step 142 to the central axis of the cover portion 11.

[0046] The bottom end of the flange 12 is provided with an inner hook 121, which is convenient for buckling the pot cover assembly onto the heat preservation cover on the pot body.

[0047] The pot cover assembly in this embodiment also includes a lining assembly 40 and a decorative cover (not shown in the figure). During actual assembly, the lining assembly 40 is located on the top of the inner cover 10, and the decorative cover is installed on the top of the lining assembly 40, so as to ensure the perfect appearance of the entire pot cover assembly.

[0048] According to the above embodiments, it can be known that the present invention reduces the overall thickness of the pot cover assembly by reducing the number of steps on the flange 12, and directly eliminates the steps that do not affect the product performance; the second step 123 is a locking step, the function of which is to buckle the thermal insulation cover to play a safety protection role, the first step 122 is the installation step of the sealing ring 30, the pot mouth sealing ring 30 is installed on the step, and cooperates with the annular protrusion 13 to reduce the upper lip of the sealing ring 30 to cooperate with it, thereby improving the sealing performance of the entire pot cover assembly.

[0049] The present invention retains necessary steps, eliminates the original third step surface, and forms an annular protrusion 13 on the top of the inner cover 10. The original third step surface is convenient for cooperating with the pot mouth sealing ring 30 to play a sealing role.

[0050] From the above description, it can be seen that the above invention of the present invention achieves the following technical effects: relative to the pot cover assembly in the prior art, the number of steps in the stepped structure of the longitudinal section of the flange at the outer edge of the inner cover of the pot cover assembly in the present invention is less than 3, which can reduce the thickness of the inner cover in the present invention to a certain extent, and then reduce the thickness of the entire pot cover assembly, reduce the volume of the pot cover assembly, and in actual production, can reduce the material used in the pot cover assembly and reduce the production cost of the pot cover assembly in the present invention.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pot cover assembly, characterized in that: include: Liner assembly (40); An inner cover (10), the inner cover (10) being mounted on the bottom of the lining assembly (40), the inner cover (10) comprising a cover plate portion (11) and a flange (12) arranged on the outer periphery of the cover plate portion (11), the flange (12) being arranged to be turned toward the bottom of the cover plate portion (11), the longitudinal section of the flange (12) being arranged in a stepped structure, and the number of steps of the stepped structure is less than 3; The stepped structure comprises a first step (122) and a second step (123), wherein the second step (123) is located at the bottom end of the first step (122), and the distance between the second step (123) and the central axis of the cover plate portion (11) is greater than the distance between the first step (122) and the central axis of the cover plate portion (11), and an inner hook (121) is provided at the bottom end of the stepped structure.

2. The pot cover assembly according to claim 1, characterized in that: An annular protrusion (13) is provided at the position where the flange (12) is connected to the cover plate portion (11), and the annular protrusion (13) is located at the bottom of the inner cover (10).

3. The pot cover assembly according to claim 2, characterized in that: An annular groove (14) corresponding to the annular protrusion (13) is provided on one side of the cover plate portion (11) away from the annular protrusion (13); the cover plate portion (11) is connected to the top end of the inner peripheral side wall (141) of the annular groove (14); and the flange (12) is connected to the top end of the outer peripheral side wall (142) of the annular groove (14).

4. The pot cover assembly according to claim 2, characterized in that: The height H of the annular protrusion (13) is 1 mm to 3 mm.

5. The pot cover assembly according to claim 3, characterized in that: The opening angle (15) between the inner peripheral side wall (141) of the annular groove (14) and the cover plate portion (11) is between 90° and 180°.

6. The pot cover assembly according to claim 3, characterized in that: The longitudinal section of the inner peripheral side wall (141) of the annular groove (14) is a first arc surface, and the longitudinal section of the outer peripheral side wall (142) of the annular groove (14) is a second arc surface, the ends of the first arc surface and the second arc surface that are close to each other are smoothly transitioned and connected, and the convex directions of the first arc surface and the second arc surface are opposite to each other.

7. The pot cover assembly according to claim 1, characterized in that: The cover plate portion (11) and the flange (12) are integrally formed.

8. The pot cover assembly according to claim 2, characterized in that: The pot cover assembly also includes an inner lining plate (20) and a sealing ring (30), wherein the inner lining plate (20) is fixed to the bottom of the cover plate portion (11) via a locking member (50), and the sealing ring (30) is sleeved on the outer periphery of the inner lining plate (20) and is pressed against the annular protrusion (13) via the inner lining plate (20).

9. A cooking utensil, comprising a pot cover assembly, characterized in that: The pot cover assembly is the pot cover assembly according to any one of claims 1 to 8.

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