Container cover and liquid heating container

Abstract

The embodiment of the utility model provides a container cover and a liquid heating container. The container cover comprises an inner cover used for covering a container body, and air holes are formed in the inner cover; the outer cover is arranged on the inner cover, a closed heat preservation cavity is defined between the outer cover and the inner cover, and the air holes are communicated with the heat preservation cavity. According to the container cover provided by the embodiment of the utility model, the inner cover is provided with the vent holes, and the outer cover is not provided with the vent holes, so that the air pressure in the container body can be relieved, and steam in the heat preservation cavity cannot overflow, thereby avoiding great loss of heat and improving the medicine decocting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cooking equipment, specifically to a container lid and a liquid heating container. Background Technology

[0002] Current decoction container structures, such as Figure 1 As shown, the container lid 10a is placed on the container body 20a. The container lid 10a has a vent hole. During the decoction process, steam will be released through the vent hole to avoid excessive pressure inside the container body 20a. However, this will cause heat loss and affect the decoction efficiency. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a container lid and a liquid heating container using the container lid, which can reduce heat loss and improve the efficiency of decoction.

[0004] A first aspect of this utility model provides a container lid, comprising: an inner lid for covering a container body, the inner lid having a vent hole; and an outer lid disposed on the inner lid, forming a sealed heat-insulating cavity between the outer lid and the inner lid, the vent hole communicating with the heat-insulating cavity.

[0005] The container lid provided in this embodiment includes an outer lid and an inner lid. The inner lid has a vent hole, while the outer lid does not have a vent structure. During the decoction process, when the container lid is closed on the container body, the steam inside the container can escape into the sealed heat-insulating cavity through the vent hole on the inner lid, which can relieve the air pressure inside the container. Since the outer lid does not have a vent structure, the steam in the heat-insulating cavity will not overflow, which can avoid a large amount of heat loss and improve the decoction efficiency. The sealed heat-insulating cavity is not directly connected to the outside, and has a good heat preservation effect.

[0006] Furthermore, with the outer lid positioned on top of the inner lid, the inner lid bears the weight of the outer lid. After the lid is closed onto the container body, the weight of both the outer and inner lids acts on the same point within the container. Compared to a single lid being placed on the container body, this reduces the likelihood of steam inside the container opening the lid, thus decreasing the chance of heat loss and improving heating efficiency. Moreover, it eliminates the need for additional support structures on the container body to support the outer lid, simplifying the container structure and facilitating rapid manufacturing and shaping.

[0007] In some embodiments, the weight of the outer cover is greater than or equal to 300g.

[0008] In these embodiments, the outer cover is made to have a certain weight, such as greater than or equal to 300g, so that even if there are no vent holes on the outer cover, it can be ensured that the outer cover will not be lifted by steam, thus avoiding heat loss.

[0009] Furthermore, in some embodiments, the vent is located at the lowest point of the upper surface of the inner cover.

[0010] In these embodiments, the vent is positioned at the lowest point of the upper surface of the inner lid. This allows steam to enter the insulation chamber and flow down the lower surface of the outer lid to the upper surface of the inner lid, or drip from the lower surface of the outer lid onto the upper surface of the inner lid, then flow down the upper surface of the inner lid to the vent, and finally back into the container. This ensures that the medicinal efficacy within the steam does not escape, maximizing its retention within the container and improving the decoction effect. Furthermore, it prevents a large amount of liquid from accumulating on the inner lid, reducing the likelihood of spillage during opening.

[0011] In some embodiments, the upper surface of the inner cover includes a downwardly recessed guide surface for guiding liquid to the vent. This facilitates the smooth flow of liquid from the vapor in the insulation cavity to the vent, and then back into the container body via the vent.

[0012] In some embodiments, there are multiple vent holes distributed in the central region of the inner cover, and the flow guiding surface is annular and distributed around the periphery of the central region of the inner cover, with the outer edge of the flow guiding surface higher than its inner edge. The flow guiding surface is an arc-shaped surface or an inclined surface.

[0013] In these embodiments, multiple vents are concentrated in the central area of ​​the inner cover, and the flow guiding surface is located on the periphery of the vents. This facilitates the circumferential guidance of the flow guiding surface to allow liquid to flow into the vents and then back into the container, resulting in good flow guidance. Furthermore, the inner cover's arrangement is simple in structure and easy to manufacture.

[0014] In some embodiments, the outer cover is removably mounted on the inner cover.

[0015] In these embodiments, the outer cover and the inner cover are separate structures, which facilitates independent processing and molding of the two. Moreover, the outer cover and the inner cover can be separated from each other, making it convenient to clean the outer cover and the inner cover independently, and to clean the insulation cavity.

[0016] In some embodiments, the inner cover is provided with a grip portion. This allows the user to easily hold the grip portion and remove or place the inner cover.

[0017] In some embodiments, the horizontal distance between the vent and the grip is greater than 10 mm. This prevents the user from being burned by steam escaping from the vent when holding the grip.

[0018] In some embodiments, the grip portion is located in the middle of the inner cover, and the number of vent holes is multiple, distributed circumferentially around the grip portion. This facilitates the release of steam from the container body into the insulation cavity at multiple circumferential points, preventing excessive air pressure inside the container body, and also facilitates the return of steam from the insulation cavity into the container body at multiple circumferential points, so that the efficacy of the medicine in the steam is retained in the container body.

[0019] In some embodiments, the edge of the inner cover has an inner cover flange, and the edge of the outer cover has an outer cover flange, with the outer cover flange resting on the inner cover flange.

[0020] In these embodiments, the outer cover sits atop the inner cover, allowing for easy separation and independent cleaning of both the outer and inner covers, as well as the insulation cavity. Furthermore, the absence of an additional connecting structure between the inner and outer covers results in a simple and easy-to-manufacture structure. Moreover, when placing the container lid onto the container body, the inner cover can be placed on top first, followed by the outer cover, which, under its own weight, presses the inner cover firmly against the container body. This double compression prevents significant heat loss through the gap between the lid and the body, thereby improving heating efficiency.

[0021] In some embodiments, the outer cover and the inner cover are rotatably fastened together.

[0022] In these embodiments, the outer and inner lids are rotatably connected. This connection ensures that during the decoction process, the steam inside the container and the steam in the insulation chamber must overcome the combined weight of both lids to lift the lid, effectively preventing heat loss and improving decoction efficiency. Furthermore, opening the lid simplifies the process by allowing the outer and inner lids to be rotated together and removed simultaneously, eliminating the risk of burns from the inner lid. Similarly, closing the lid is also convenient. Additionally, when cleaning the container lid, the outer lid can be rotated to separate the two lids for individual cleaning.

[0023] A second aspect of this utility model provides a liquid heating container, the container including a container body and a container lid as described in any of the above embodiments, the container lid being closed on the container body.

[0024] The liquid heating container provided in this embodiment has the container lid of any of the above embodiments, and thus has the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0025] In some embodiments, the inner side of the top opening of the container body has a stepped surface, the edge of the inner cover rests on the stepped surface, and the edge of the outer cover presses against the edge of the inner cover. The weight of both the inner and outer covers is pressed against the stepped surface, and this double compression can prevent a large amount of heat from escaping from the container body through the gap between the container cover and the container body, thereby improving heating efficiency.

[0026] Other aspects and / or advantages of the present invention will be set forth in part in the description which follows, and in part will be clear from the description or may be learned by practice of the present invention. Attached Figure Description

[0027] The above and other objects and features of this utility model will become clearer from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0028] Figure 1 A longitudinal cross-sectional schematic diagram of a liquid heating container in the related art is shown;

[0029] Figure 2 A longitudinal cross-sectional schematic diagram of a liquid heating container according to an embodiment of this application is shown.

[0030] Figure 3 A schematic diagram of the inner cover of one embodiment of this application is shown;

[0031] Figure 4 A longitudinal sectional view of the inner cover of one embodiment of this application is shown.

[0032] Figure 1 Explanation of icon numbers:

[0033] 10a container lid, 20a container body;

[0034] Figures 2 to 4 Explanation of icon numbers:

[0035] 10 Container lid; 110 Inner lid; 111 Vent hole; 112 Flow guide surface; 113 Handle; 114 Inner lid flange; 120 Outer lid; 121 Outer lid flange; 130 Insulation cavity; 20 Container body; 210 Stepped surface; 30 Heating plate; 40 Base. Detailed Implementation

[0036] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but may be changed as will become clear upon understanding this disclosure, except for operations that must occur in a specific order. Furthermore, for clarity and conciseness, descriptions of features known in the art may be omitted.

[0037] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein, which will become clear upon understanding the disclosure of this application.

[0038] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more.

[0039] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts should not be limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Thus, without departing from the teaching of the examples described herein, the first component, first assembly, first region, first layer, or first part referred to as the first component, first assembly, first region, first layer, or first part may also be referred to as the second component, second assembly, second region, second layer, or second part.

[0040] In the specification, when an element such as a layer, region, or substrate is described as being "on" another element, "connected to," or "bonded to" another element, the element may be directly "on" another element, directly "connected to," or "bonded to" the other element, or one or more other elements may be present in between. Conversely, when an element is described as being "directly on" another element, "directly connected to," or "directly bonded to" another element, no other elements may be present in between.

[0041] The terminology used herein is for the purpose of describing various examples only and is not intended to limit disclosure. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the described features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. The term “a plurality” represents any quantity of two or more.

[0042] The directional terms “above,” “below,” “top,” and “bottom” used in this application, unless otherwise specified, are based on the orientation of the product when it is in normal use.

[0043] Unless otherwise defined, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains after understanding the invention. Unless expressly defined herein, terms such as those defined in a general dictionary shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field and in this invention, and shall not be interpreted in an idealized or overly formalistic manner.

[0044] The following will combine Figures 2 to 4This invention introduces a container lid 10 and a liquid heating container provided by embodiments of the present invention. The liquid heating container can be a decoction container, such as a decoction pot or herbal decoction pan. Of course, the liquid heating container can also be a teapot or a health-preserving pot. The liquid heating container can have various uses, not limited to the examples described above.

[0045] like Figure 2 and Figure 4 As shown, a first aspect of the present invention provides a container lid 10, which includes: an inner lid 110 for covering a container body 20, the inner lid 110 having a vent hole 111; and an outer lid 120 disposed on the inner lid 110, forming a sealed heat-insulating cavity 130 between the outer lid 120 and the inner lid 110, the vent hole 111 communicating with the heat-insulating cavity 130.

[0046] The container lid 10 provided in this embodiment includes an outer lid 120 and an inner lid 110. The inner lid 110 has a vent hole 111, while the outer lid 120 does not have a vent structure. During the decoction process, when the container lid 10 is closed on the container body 20, the steam inside the container body 20 can escape through the vent hole 111 on the inner lid 110 into the sealed heat-insulating cavity 130, which can alleviate the air pressure inside the container body 20. Since the outer lid 120 does not have a vent structure, the steam in the heat-insulating cavity 130 will not overflow, thus avoiding significant heat loss and improving decoction efficiency. The sealed heat-insulating cavity 130 is not directly connected to the outside, providing good heat preservation.

[0047] Furthermore, the outer cover 120 is mounted on the inner cover 110, with the inner cover 110 bearing the weight of the outer cover 120. After the container cover 10 is placed on the container body 20, the weight of the outer cover 120 and the inner cover 110 acts on the same point of the container body 20. Compared to a single cover being placed on the container body 20, this reduces the likelihood of steam inside the container body 20 opening the container cover 10, thereby reducing the chance of heat leakage and improving heating efficiency. Moreover, it eliminates the need for an additional support structure on the container body 20 to support the outer cover 120, simplifying the structure of the container body 20 and facilitating rapid processing and molding of the container body 20.

[0048] In practical applications, during decoction, as the liquid temperature inside container 20 rises, the internal air pressure increases. Steam escapes through vent 111 into the insulation cavity 130, where it diffuses, adheres to the outer lid 120 and flows down its drain, or drips from it. The sealed insulation cavity 130 not only provides insulation but also acts as a buffer, reducing the likelihood of the outer lid 120 being lifted. Combined with the double-layered outer lid 120 and inner lid 110, heat inside container 20 is less likely to burst out of the container lid 10 or escape through the gap between the lid 10 and container 20, thus improving heating efficiency.

[0049] It should be noted that the outer cover 120 in this application is a sealed cover without a breathable structure. In this way, after the outer cover 120 is placed on the inner cover 110, it can form a relatively sealed heat preservation cavity 130 with the inner cover 110, thereby preventing the steam in the heat preservation cavity 130 from flowing out to the outside through the outer cover 120.

[0050] Furthermore, in some embodiments, the outer cover 120 weighs more than or equal to 300g.

[0051] This gives the outer cover 120 a certain weight, such as 300g or more, so that even if the outer cover 120 has no breathable structure, it can be ensured that the outer cover 120 will not be lifted by steam, thereby avoiding heat loss.

[0052] In practical applications, the weight of the outer cover 120 can be designed based on the steam pressure generated by the maximum capacity of the container body 20. For example, the weight of the outer cover 120 can be 350g, 400g, or 500g, etc.

[0053] Furthermore, in some embodiments, the vent 111 is located at the lowest point of the upper surface of the inner cover 110.

[0054] In these embodiments, the vent 111 is positioned at the lowest point of the upper surface of the inner cover 110. This facilitates the flow of steam into the insulation chamber 130, down the lower surface of the outer cover 120 to the upper surface of the inner cover 110, or dripping from the lower surface of the outer cover 120 onto the upper surface of the inner cover 110, then flowing down the upper surface of the inner cover 110 to the vent 111, and finally back into the container body 20. This ensures that the medicinal efficacy within the steam does not escape, maximizing its retention within the container body 20 and improving the decoction effect. Furthermore, it prevents a large amount of liquid from accumulating on the inner cover 110, reducing the likelihood of spillage during opening.

[0055] Furthermore, in some embodiments, the upper surface of the inner cover 110 includes a downwardly recessed guide surface 112 for guiding liquid to the vent 111. This facilitates the smooth flow of steam within the insulation cavity 130 to the vent 111 and back into the container body 20 via the vent 111.

[0056] Furthermore, making the upper surface of the inner cover 110 partially concave downwards helps to increase the volume of the insulation cavity 130, thereby better relieving the internal pressure of the container body 20. In addition, if the concave area of ​​the inner cover 110 can be embedded inside the container body 20, the assembly gap length between the container cover 10 and the container body 20 can be increased, thereby preventing a large amount of heat from escaping from the container body 20 through the assembly gap.

[0057] In a specific embodiment, such as Figure 4 As shown, there are multiple vent holes 111 distributed in the central region of the inner cover 110, and the flow guiding surface 112 is annular and distributed on the periphery of the central region of the inner cover 110, with the outer edge of the flow guiding surface 112 being higher than its inner edge.

[0058] In this embodiment, multiple vent holes 111 are relatively concentrated in the central area of ​​the inner cover 110, and the flow guiding surface 112 is located on the periphery of the multiple vent holes 111. This facilitates the flow guiding surface 112 to guide the liquid circumferentially into the multiple vent holes 111, and then back into the container body 20, resulting in good flow guiding effect. Moreover, the inner cover 110 adopts a simple arrangement, making it easy to manufacture.

[0059] like Figure 4 As shown, the guide surface 112 is an arc-shaped surface. The guide surface 112 extends downwards towards the center of the inner cover 110, resulting in better airflow guidance. Of course, the guide surface 112 can also be an inclined surface.

[0060] Alternatively, the central area of ​​the upper surface of the inner cover 110 can be flat, which facilitates processing, making it easier to manufacture the vent hole 111 and install structures such as the grip part 113. Of course, the central area of ​​the upper surface of the inner cover 110 can also be an arc-shaped surface. In this case, the guide surface 112 can also be an arc-shaped surface, and the two together form a large concave arc-shaped surface, which facilitates the processing and shaping of the inner cover 110.

[0061] The structure of the guide surface 112 and the location of the vent 111 can be varied, and are not limited to the examples above.

[0062] Furthermore, in some embodiments, such as Figure 2 As shown, the lower surface of the outer cover 120 is an arc-shaped surface with a central convex shape. This helps guide steam to flow along the lower surface of the outer cover 120 to the inner cover 110. Moreover, the upward bulge in the middle of the outer cover 120 increases the volume of the insulation cavity 130, thereby better relieving the internal pressure of the container body 20 and increasing the weight of the outer cover 120, reducing the chance of the outer cover 120 being lifted by steam.

[0063] Of course, the structure of the lower surface of the outer cover 120 is not limited to this. The longitudinal cross-section of the lower surface of the outer cover 120 can also be n-shaped, etc., which will not be listed in detail here.

[0064] Furthermore, in some embodiments, the outer cover 120 is detachably mounted on the inner cover 110. This makes the outer cover 120 and the inner cover 110 a separate structure, facilitating independent processing and molding of both. Moreover, the outer cover 120 and the inner cover 110 can be separated from each other, facilitating independent cleaning of both the outer cover 120 and the inner cover 110, and also facilitating cleaning of the insulation cavity 130.

[0065] In this case, such as Figure 3 and Figure 4 As shown, a grip portion 113 can be provided on the inner cover 110. This allows the user to easily hold the grip portion 113 and remove or place the inner cover 110 independently. Furthermore, to prevent the user from being burned by steam escaping from the vent hole 111 when holding the grip portion 113, the horizontal distance L between the vent hole 111 and the grip portion 113 can be greater than 10mm.

[0066] In practical applications, users may hold the grip part 113 by means of, but not limited to, clamping it with a clamp, or using a towel or gloves for heat insulation, ensuring a certain distance between the vent 111 and the grip part 113 for good safety. For example, the horizontal distance L between the vent 111 and the grip part 113 may be 10mm, 14mm, or 20mm, etc.

[0067] Furthermore, regarding the specific structure of the grip portion 113, as an example, the grip portion 113 can be mushroom-shaped, frustum-shaped (thicker at the top and thinner at the bottom), or it can be a lifting ring, or it can be a groove for inserting fingers, etc. There are many possible grip portions 113, which will not be listed here. Additionally, if the grip portion 113 is a movable part, the horizontal distance between the vent 111 and the grip portion 113 in any posture can be greater than 10mm, preventing the user from being scalded by steam.

[0068] In a specific embodiment, such as Figure 3 and Figure 4 As shown, the grip portion 113 is located in the middle of the inner cover 110, and four vent holes 111 are distributed circumferentially around the grip portion 113. This facilitates the release of steam from the container body 20 into the insulation cavity 130 at four circumferential positions, preventing excessive air pressure inside the container body 20, and also facilitates the return of steam from the insulation cavity 130 into the container body 20 at four circumferential positions, so that the efficacy of the medicine in the steam is retained in the container body 20. The upper surface of the inner cover 110 includes a circumferentially distributed guide surface 112 and a grip portion mounting surface located in the middle of the guide surface 112. The grip portion 113 is located inside the grip portion mounting surface, and the four vent holes 111 are located at the boundary between the grip portion mounting surface and the guide surface 112. The radial distance between the four vent holes 111 and the grip portion 113 in the inner cover 110 is 12 mm.

[0069] Of course, the number of vent holes 111 can also be five, six, eight or even more. In addition, the vent holes 111 can also be set inside the guide surface 112, which can be set as needed.

[0070] Regarding the connection method between the outer cover 120 and the inner cover 110, further, in some embodiments, such as Figure 2 and Figure 4As shown, the inner cover 110 has an inner cover flange 114 on its edge, and the outer cover 120 has an outer cover flange 121 on its edge, with the outer cover flange 121 resting on the inner cover flange 114.

[0071] In these embodiments, the outer cover 120 is mounted on the inner cover 110, and the two are easily separated, facilitating independent cleaning of both the outer cover 120 and the inner cover 110, as well as the insulation cavity 130. Furthermore, the absence of an additional connecting structure between the inner cover 110 and the outer cover 120 eliminates the need for a separate structure, resulting in a simple structure and easy manufacturing of the inner cover 110 and outer cover 120. Moreover, when the container lid 10 is placed on the container body 20, the inner cover 110 can be placed on the container body 20 first, followed by the outer cover 120, which, under its own weight, presses the inner cover 110 onto the container body 20. This double compression prevents significant heat loss from the container body 20 through the gap between the container lid 10 and the container body 20, thereby improving heating efficiency.

[0072] As an example, such as Figure 2 As shown, the outer cover flange 121 and the inner cover flange 114 are stacked together and pressed onto the stepped surface 210 of the container body 20 to achieve double compression.

[0073] In other embodiments, the outer cover 120 and the inner cover 110 are rotatably fastened together.

[0074] In these embodiments, the outer cover 120 and the inner cover 110 are rotatably connected. When the container cover 10 is on the container body 20 for decoction, if they are connected, the steam inside the container body 20 and the steam in the insulation chamber 130 must simultaneously overcome the combined weight of the outer cover 120 and the inner cover 110 to lift the container cover 10. This effectively prevents heat loss and improves decoction efficiency. Furthermore, when opening the lid, the outer cover 120 and the inner cover 110 can be rotatably connected and then removed simultaneously, simplifying the opening process, making operation convenient, and eliminating the risk of burns from the inner cover 110. Similarly, when closing the lid, the outer cover 120 and the inner cover 110 can be rotatably connected and closed simultaneously, making operation convenient. Additionally, when cleaning the container cover 10, the outer cover 120 can be rotated to separate the two, facilitating separate cleaning of the outer cover 120 and the inner cover 110.

[0075] As an example, the inner cover 110 has multiple upwardly and inwardly rolled-up inserts (not shown in the figure) at its edge. These inserts are spaced apart circumferentially around the inner cover 110, and each insert forms a slot with the upper surface of the inner cover 110. The outer cover 120 has multiple circumferentially spaced tongues (not shown in the figure) at its edge, with each tongue corresponding to a slot. When the outer cover 120 is closed, the tongues can be placed on the edge of the inner cover 110 and positioned between the slots. Then, the outer cover 120 is rotated so that the tongues are inserted into the corresponding slots. This allows the outer cover 120 to rest on the inner cover 110, and also allows the inner cover 110 to be lifted or lowered simultaneously when the outer cover 120 is lifted or lowered, making operation convenient.

[0076] like Figure 2 As shown, a second aspect of the present invention provides a liquid heating container, which includes a container body 20 and a container lid 10 as described in any of the above embodiments, the container lid 10 covering the container body 20.

[0077] The liquid heating container provided in this embodiment has the container lid 10 of any of the above embodiments, and thus has the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0078] Furthermore, in some embodiments, such as Figure 2 As shown, the inner side of the top opening of the container body 20 has a stepped surface 210. The edge of the inner cover 110 rests on the stepped surface 210, and the edge of the outer cover 120 presses against the edge of the inner cover 110. The weight of both the inner cover 110 and the outer cover 120 is pressed against the stepped surface 210. This double compression can prevent a large amount of heat from leaking out of the container body 20 through the gap between the container cover 10 and the container body 20, thereby improving heating efficiency.

[0079] Furthermore, in some embodiments, the inner cover 110 includes an inner cover bottom wall and an inner cover side wall (not shown in the figure). Both the inner cover side wall and the inner cover bottom wall are embedded inside the container body 20. The top of the inner cover side wall has an outwardly bent inner cover flange 114, which rests on the stepped surface 210 of the container body 20. Since the inner cover 110 is mostly embedded in the container body 20, the gap between the inner cover 110 and the container body 20 is extended, which can prevent heat from easily escaping from the container body 20 and improve the heat preservation effect.

[0080] Furthermore, in some embodiments, the liquid heating container also includes a heating plate 30 and a base 40. The heating plate 30 is fixed to the bottom of the container body 20, and the container body 20 and the base 40 are detachably connected. A power module is provided in the base 40 to supply power to the heating plate 30.

[0081] While the embodiments of the present invention have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope thereof. It should be understood that, to those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of the present invention as defined in the claims.

Claims

1. A container lid, characterized in that, The container lid (10) includes: An inner cover (110) is provided on the container body (20), and the inner cover (110) is provided with a vent hole (111); An outer cover (120) is disposed on the inner cover (110) and forms a sealed heat-insulating cavity (130) between the outer cover (110) and the inner cover (110), and the vent (111) is connected to the heat-insulating cavity (130).

2. The container lid according to claim 1, characterized in that, The outer cover (120) weighs 300g or more.

3. The container lid according to claim 1, characterized in that, The vent (111) is located at the lowest point on the upper surface of the inner cover (110).

4. The container lid according to claim 1, characterized in that, The upper surface of the inner cover (110) includes a downwardly recessed guide surface (112) for guiding liquid to the vent (111).

5. The container lid according to claim 4, characterized in that, The number of vent holes (111) is multiple and distributed in the middle region of the inner cover (110). The flow guiding surface (112) is annular and distributed in the outer periphery of the middle region of the inner cover (110). The outer edge of the flow guiding surface (112) is higher than its inner edge. The flow guiding surface (112) is an arc-shaped surface or an inclined surface.

6. The container lid according to any one of claims 1 to 5, characterized in that, The outer cover (120) is detachably mounted on the inner cover (110).

7. The container lid according to claim 6, characterized in that, The inner cover (110) is provided with a grip (113).

8. The container lid according to claim 7, characterized in that, The horizontal distance between the vent (111) and the grip (113) is greater than 10 mm; and / or The grip portion (113) is located in the middle of the inner cover (110), and there are multiple vent holes (111) distributed circumferentially around the grip portion (113).

9. The container lid according to claim 6, characterized in that, The inner cover (110) has an inner cover flange (114) at its edge, and the outer cover (120) has an outer cover flange (121) at its edge, the outer cover flange (121) resting on the inner cover flange (114); or The outer cover (120) and the inner cover (110) are rotatably fastened together.

10. A liquid heating container, characterized in that, The liquid heating container includes a container body (20) and a container lid (10) as described in any one of claims 1 to 9, the container lid (10) covering the container body (20).

11. The liquid heating container according to claim 10, characterized in that, The container body (20) has a stepped surface (210) on the inside of the top opening, the edge of the inner cover (110) rests on the stepped surface (210), and the edge of the outer cover (120) presses against the edge of the inner cover (110).

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