Heat preservation container

Abstract

The embodiment of the utility model provides a heat preservation container which comprises a container body, a heat preservation layer and a heat preservation layer. The inner box assembly is erected on the supporting step and located in the container body, and the inner box assembly comprises an inner box and an inner box cover arranged on the inner box in a covering mode; the sealing piece is arranged on the periphery of the inner box cover, and the sealing piece can seal the gap between the inner box cover and the container body; and the container cover covers the container body. According to the heat preservation container provided by the embodiment of the invention, the sealing piece is arranged on the inner box cover instead of the container cover, and when the container cover is subjected to cover opening operation and cover closing operation, the container cover cannot drive the sealing piece to generate friction with the inner wall of the container body, so that the cover opening and closing noise can be reduced, and the cover opening and closing can be realized easily.

Description

Technical Field

[0001] The utility model relates to the field of containers, in particular to a heat-insulating container. Background Art

[0002] Insulated containers typically consist of a container body and a lid. The lid is screwed onto the container body and features a sealing ring that fits tightly against the inner wall of the container body, achieving a seal and maintaining heat. However, when the lid is opened, the sealing ring rubs against the inner wall of the container body, causing a considerable amount of noise. Utility Model Content

[0003] Therefore, the purpose of the present invention is to provide a heat-insulating container to at least solve the problem of high noise during the opening process of the container lid.

[0004] One aspect of the present invention provides a heat-insulating container, which includes: a container body, an inner side wall of the container body being provided with a support step; an inner box assembly, which is mounted on the support step and is located inside the container body, the inner box assembly including an inner box and an inner box cover arranged on the inner box; a sealing member, which is arranged on the outer periphery of the inner box cover and can seal the gap between the inner box cover and the container body; and a container cover, which covers the container body.

[0005] The heat-insulating container provided in the embodiment of this aspect has the sealing member arranged on the inner box cover rather than the container cover. When the container cover is opened or closed, especially when the container cover is threadedly connected to the container body, the container cover will not cause the sealing member to interfere with the inner wall of the container body and rub against it, which can reduce the noise of opening and closing the cover and is conducive to realizing quiet opening and closing of the cover.

[0006] Furthermore, in some embodiments, a seal mounting groove is provided on the outer periphery of the inner box cover, into which a portion of the seal is embedded. The seal mounting groove can limit the seal, thereby improving the installation stability of the seal and preventing the seal from separating from the inner box cover during the process of removing and placing the inner box assembly.

[0007] Furthermore, in some embodiments, the bottom wall of the seal mounting groove further comprises a connecting rib, and the inner sidewall of the seal is provided with a connecting groove. The connecting rib is inserted into the connecting groove, and the two opposing sidewalls of the connecting groove are inserted into the seal mounting groove. The design of the connecting rib and connecting groove further increases the contact area between the seal and the inner cover, thereby improving the installation stability of the connector.

[0008] Furthermore, in some embodiments, the seal includes a sealing ring and a sealing rib extending upward or downward from the outer wall of the sealing ring, and a gap is left between the inner side of the sealing rib and the outer wall of the sealing ring. When the inner box assembly is placed in the container body, the sealing rib fits tightly against the inner wall of the container body.

[0009] In these embodiments, the sealing member includes a sealing ring and a sealing rib. The sealing ring can be tightly mounted on the inner box cover, and the sealing rib is tightly fitted with the inner wall of the container body. Since there is a movable margin between the inner side of the sealing rib and the outer side wall of the sealing ring, when the inner box cover is pressed downward into the container body, the sealing rib can be squeezed by the inner side wall of the container body to approach the sealing ring, so that the sealing rib is fully supported between the inner side wall of the container body and the inner box cover, and the sealing effect is good.

[0010] Furthermore, in some embodiments, an exhaust hole is provided on the inner box cover, and an exhaust valve is provided at the exhaust hole.

[0011] In these embodiments, by providing an exhaust hole and an exhaust valve on the inner box lid, the exhaust valve can be opened after a negative pressure is formed in the inner cavity of the inner box, and the inner box lid can be opened after the pressure difference between the inside and outside is reduced. This makes the inner box lid easy to open, and can prevent the inner box lid from being easily opened due to negative pressure. Moreover, since there is no need to provide a sealing structure on the container lid, and the sealing cover in traditional thermal insulation containers is eliminated, after opening the exhaust valve, outside air can enter the container body through the assembly gap between the container lid and the container body, and then enter the inner box through the exhaust hole, thereby conveniently reducing the pressure difference between the inside and outside of the inner box. The inner box lid has the function of reducing the pressure difference, and the sealing function of the sealing member on the inner box lid and the sealing function of the inner box lid itself can achieve three functions in one lid. Compared with the traditional exhaust hole that needs to pass through the container lid, the structure is simplified, the processing is convenient, and the cost is saved. It can also improve the appearance of the container lid and prevent foreign matter such as dust from entering the container body through the exhaust hole.

[0012] Furthermore, in some embodiments, the bottom of the inner box cover also has a radially penetrating notch. When the inner box cover is closed on the inner box, the notch communicates with the inner cavity of the inner box and the inner cavity of the container body.

[0013] In addition to the negative pressure generated within the inner box as the food sits still for a period of time, the initial pressure inside the inner box is high due to the high temperature of the food and the fact that most of the inner box's volume is occupied by the food. This can easily cause the inner box lid to lift, hindering the sealing element from sealing the gap between the inner box lid and the container body. Therefore, in these embodiments, a notch is provided at the bottom of the inner box lid, allowing the notch to connect the inner cavity of the inner box with the inner cavity of the container body outside the inner box. This can relieve pressure within the inner box and prevent the inner box lid from lifting due to excessive internal pressure. Furthermore, after the inner box assembly is removed from the container body, the notch can serve as a through hole connecting the inner box to the outside atmosphere, helping to alleviate the pressure differential between the inside and outside, thereby facilitating opening of the inner box lid.

[0014] Furthermore, in some embodiments, the container cover is threadedly connected to the container body or snap-fitted to provide a secure connection and easy operation.

[0015] Furthermore, in some embodiments, the bottom of the container lid is provided with a compression rib. When the container lid is closed on the container body, the compression rib presses the inner box assembly against the support step. This prevents the inner box lid from being lifted by the internal air pressure of the inner box and improves the placement stability of the inner box assembly, preventing the inner box assembly from moving up and down within the container body.

[0016] Furthermore, in some embodiments, the container lid includes: a lid body, having a downward-extending shielding rib at the edge of the lid body, and the top opening of the container body extending into the inner side of the shielding rib; an inner plug, having an insulating cavity inside the inner plug, and the inner plug is arranged at the bottom of the lid body and extends into the top opening of the container body.

[0017] In these embodiments, the container lid includes a lid body and an inner plug. When the lid is closed on the container body, the inner plug extends into the heat-insulating cavity, and the inner plug defines a heat-insulating cavity. The inner plug can extend deeply into the top opening of the container body, thereby reducing heat transfer between the container cavity and the outside world through the lid and improving thermal insulation. Furthermore, shielding ribs on the edge of the lid body can shield the top opening of the container body, improving the appearance and further reducing heat transfer between the container cavity and the outside world.

[0018] Furthermore, in some embodiments, the container lid further includes a heat insulating member disposed within the heat insulating cavity. Arranging the heat insulating member within the heat insulating cavity further enhances the heat insulating effect, thereby improving the heat preservation effect of the heat-insulating container, compared to leaving the heat insulating cavity empty and utilizing air for heat insulation.

[0019] Furthermore, in some embodiments, the heat insulating member is a polystyrene member, which is lightweight, has good heat preservation and insulation performance, is highly adaptable to temperature and humidity changes, and has good chemical stability.

[0020] Furthermore, in some embodiments, the cover body and the inner plug are welded together. This not only secures the connection between the cover body and the inner plug, ensuring that both can be opened and moved simultaneously, but also helps seal the insulation inside the inner plug, preventing impurities such as moisture from entering the insulation cavity.

[0021] Additional aspects and / or advantages of the present general inventive concept will be set forth in part in the following description, and some will be clear from the description or may be learned through practice of the present general inventive concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects and features of the present invention will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0023] Figure 1 A longitudinal cross-sectional schematic diagram of a heat-insulating container according to an embodiment of the present application is shown;

[0024] Figure 2 Shown Figure 1 A local enlarged schematic diagram of the area where I is located;

[0025] Figure 3 A schematic structural diagram of an inner box assembly according to an embodiment of the present application is shown.

[0026] Figures 1 to 3 Description of Figure Numbers:

[0027] 10 container body; 110 container liner; 111 support step; 120 container shell;

[0028] 20 inner box assembly; 210 inner box; 211 flange; 220 inner box cover; 221 seal mounting groove; 222 connecting rib; 223 exhaust hole; 224 exhaust valve; 225 grip portion; 226 notch;

[0029] 30 sealing element; 310 sealing ring; 311 connecting groove; 320 sealing rib;

[0030] 40 container cover; 410 cover body; 411 handle; 412 shielding rib; 420 inner plug; 421 heat insulation cavity; 422 extrusion rib; 430 heat insulation component. DETAILED DESCRIPTION

[0031] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices and / or systems described herein. However, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be clear after understanding the disclosure of the present application. For example, the order of operations described herein is merely an example and is not limited to those orders set forth herein, but can be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, for greater clarity and conciseness, descriptions of features known in the art may be omitted.

[0032] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will become clear after understanding the disclosure of this application.

[0033] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more.

[0034] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions should not be limited by these terms. Instead, these terms are used solely to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, what is referred to as a first member, first component, first region, first layer, or first portion in the examples described herein may also be referred to as a second member, second component, second region, second layer, or second portion without departing from the teachings of the examples.

[0035] In the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present therebetween. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, no other elements may be present therebetween.

[0036] The terms used herein are only used to describe various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. 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 "plurality" represents any number of two and more than two.

[0037] The definitions of directional terms such as "above", "below", "top" and "bottom" in this application are based on the orientation of the product in normal use, unless otherwise specified.

[0038] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art after understanding the present invention. Unless expressly defined otherwise herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present invention, and should not be interpreted in an idealized or overly formal manner.

[0039] The following will be combined Figures 1 to 3 The invention provides a heat-insulating container according to an embodiment of the invention.

[0040] like Figures 1 to 3As shown, an embodiment of one aspect of the present invention provides a heat-insulating container, which includes: a container body 10, and a support step 111 is provided on the inner wall of the container body 10; an inner box assembly 20, which is mounted on the support step 111 and is located inside the container body 10, and the inner box assembly 20 includes an inner box 210 and an inner box cover 220 provided on the inner box 210; a sealing member 30, which is provided on the outer periphery of the inner box cover 220, and the sealing member 30 can seal the gap between the inner box cover 220 and the container body 10; and a container cover 40, which covers the container body 10.

[0041] In the heat-insulating container provided in the embodiment of this aspect, the sealing member 30 is arranged on the inner box cover 220 instead of the container cover 40. When the container cover 40 is opened and closed, especially when the container cover 40 is threadedly connected to the container body 10, the container cover 40 will not cause the sealing member 30 to interfere with the inner wall of the container body 10 and rub against it, which can reduce the noise of opening and closing the cover, and is conducive to realizing quiet opening and closing of the cover.

[0042] Furthermore, a seal 30 is assembled on the inner box lid 220 to prevent the escape of hot air from the inner box assembly 20. Compared with traditional thermal insulation containers that require an additional sealing cover above the inner box lid 220 to prevent the escape of hot air, the inner box lid 220 can achieve dual functions, eliminating the need for a sealing cover structure and saving costs. Moreover, when using the thermal insulation container, the user only needs to open the container lid 40 and then remove the inner box assembly 20. These two steps can complete the food removal. Compared with traditional thermal insulation containers that require first screwing on the container lid 40 to open the lid, then removing the sealing cover, and finally removing the inner box assembly 20, the operation is convenient and improves the user experience.

[0043] To facilitate opening, Figure 1 As shown, a handle 411 can be provided on the container cover 40. Similarly, as Figure 3 As shown, a grip portion 225 is provided on the inner box cover 220, which facilitates the user to directly take out the inner box assembly 20 by holding the finger position structure of the grip portion 225 on the inner box cover 220. Of course, the specific structure of the handle 144 and the grip portion 225 is not limited to the example shown in the drawings.

[0044] Regarding the installation method of the seal 30, further, in some embodiments, such as Figure 1 and Figure 2As shown, the outer periphery of the inner box cover 220 is provided with a seal mounting groove 221, into which a portion of the seal 30 is embedded. The seal mounting groove 221 serves to limit the position of the seal 30, thereby improving the installation stability of the seal 30 and preventing the seal 30 from separating from the inner box cover 220 during the process of removing and placing the inner box assembly 20. Furthermore, the seal 30 generally has a certain degree of elasticity, and the seal 30 can also rely on its own elasticity to be firmly installed in the seal mounting groove 221, further improving the installation stability of the seal 30.

[0045] In some embodiments, as Figure 2 As shown, the bottom wall of the seal mounting groove 221 further has a connecting rib 222. The inner side wall of the seal 30 is provided with a connecting groove 311. The connecting rib 222 is inserted into the connecting groove 311, and the two opposite side walls of the connecting groove 311 are inserted into the seal mounting groove 221. The design of the connecting rib 222 and the connecting groove 311 further increases the contact area between the seal 30 and the inner box cover 220, making the installation stability of the connector more stable.

[0046] In a specific application, the width of the connecting groove 311 can be made smaller than the thickness of the connecting rib 222, so that the connecting groove 311 can tightly clamp the connecting rib 222, or the sealing member 30 can rely on its own elastic force to tightly clamp the connecting rib 222 to prevent the sealing member 30 from easily detaching from the inner box cover 220.

[0047] Regarding the specific structure of the sealing member 30, further, in some embodiments, as Figure 2 As shown, the sealing member 30 includes a sealing ring 310 and a sealing rib 320 extending upward or downward from the outer wall of the sealing ring 310. A gap is left between the inner side of the sealing rib 320 and the outer wall of the sealing ring 310. When the inner box assembly 20 is placed in the container body 10, the sealing rib 320 fits tightly against the inner wall of the container body 10.

[0048] In these embodiments, the sealing member 30 includes a sealing ring 310 and a sealing rib 320. The sealing ring 310 can be tightly mounted on the inner box cover 220, and the sealing rib 320 is tightly fitted with the inner wall of the container body 10. Since there is a movable margin between the inner side of the sealing rib 320 and the outer side wall of the sealing ring 310, when the inner box cover 220 is pressed downward into the container body 10, the sealing rib 320 can be squeezed by the inner side wall of the container body 10 to approach the sealing ring 310, so that the sealing rib 320 is fully supported between the inner side wall of the container body 10 and the inner box cover 220, and the sealing effect is good.

[0049] As an example, Figure 2As shown, there is one sealing rib 320 extending downward from the top of the outer wall of the sealing ring 310. Of course, the sealing rib 320 can also extend upward from the bottom of the outer wall of the sealing ring 310. Alternatively, there are at least two sealing ribs 320, spaced apart along the outer wall of the sealing ring 310, both extending upward or downward. It should be noted that in this application, the sealing rib 320 extending upward or downward does not necessarily mean vertically upward or vertically downward, but can also be inclined upward or downward to maintain a movable margin between the sealing rib 320 and the outer wall of the sealing ring 310.

[0050] Furthermore, in some embodiments, Figure 1 and Figure 3 As shown, an exhaust hole 223 is provided on the inner box cover 220 , and an exhaust valve 224 is provided at the exhaust hole 223 .

[0051] In these embodiments, by providing the vent hole 223 and vent valve 224 on the inner lid 220, negative pressure can be generated within the inner cavity of the inner box 210 before the vent valve 224 is opened, reducing the internal and external pressure differential before opening the inner lid 220. This facilitates opening of the inner lid 220 and prevents the inner lid 220 from being easily opened due to negative pressure. Furthermore, since a sealing structure is not required on the container lid 40, and the sealing cover used in conventional thermal insulation containers is eliminated, after opening the vent valve 224, outside air can enter the container body 10 through the assembly gap between the container lid 40 and the container body 10, and then enter the inner box 210 through the vent hole 223, thereby conveniently reducing the internal and external pressure differential of the inner box 210. The inner lid 220 combines the function of reducing the pressure differential with the sealing function of the seal 30 on the inner lid 220, as well as the inner lid 220's own sealing function, thus achieving a three-in-one cover. Compared with the traditional exhaust hole 223 that needs to pass through the container cover 40, it simplifies the structure, facilitates processing, saves costs, and can improve the appearance of the container cover 40 and prevent external dust and other impurities from entering the container body 10 through the exhaust hole 223.

[0052] As an example, Figure 1 As shown, exhaust valve 224 is a silicone sheet. When the pressure differential between the inside and outside of inner box 210 reaches a set value, the silicone sheet automatically deforms to open exhaust hole 223. The silicone sheet also automatically resets to close exhaust hole 223. Exhaust valve 224 has a simple structure, low cost, and automatically opens and closes without user operation, making it easy to use. Furthermore, exhaust valve 224 is made of food-grade silicone, which is non-degradable, non-toxic, and heat-resistant, making it highly safe.

[0053] As an example, the exhaust valve 224 includes an elastic member (not shown in the figure) and a sealing plug (not shown in the figure). When the pressure difference between the inside and outside of the inner box 210 reaches a set value, the sealing plug moves under the action of the pressure difference to open the exhaust hole 223. The sealing plug can also be reset to close the exhaust hole 223 under the elastic force of the elastic member.

[0054] The specific structure of the exhaust valve 224 can be various, and is not limited to the above example.

[0055] Further, in some embodiments, as shown in Figure 2 and Figure 3 , the bottom of the inner lid 220 also has a radial through gap 226, which communicates the inner cavity of the inner container 210 and the inner cavity of the container body 10 when the inner lid 220 is covered on the inner container 210.

[0056] In addition to the negative pressure generated in the inner container 210 after the food is placed in the inner container 210 for a period of time, in the initial stage of placing the food in the inner container 210, due to the high temperature of the food and the fact that most of the volume of the inner container 210 is occupied by the food, the air pressure in the inner container 210 is relatively high, which is easy to lift the inner lid 220, which is not conducive to the sealing of the gap between the inner lid 220 and the container body 10 by the sealing member 30. Therefore, in these embodiments, the bottom of the inner lid 220 has a gap 226, which can communicate the inner cavity of the inner container 210 and the inner cavity of the container body 10 outside the inner container 210, so as to release the pressure inside the inner container 210 and avoid the inner lid 220 being lifted due to the high air pressure inside the inner container 210. Moreover, after the inner container assembly 20 is taken out of the container body 10, the gap 226 can also serve as a through hole for the inner container 210 to communicate with the atmosphere, which helps to relieve the pressure difference between the inside and outside, thereby facilitating the opening of the inner lid 220.

[0057] In specific applications, the size of the gap 226 can be very small, for example, in the form of a flat strip structure, which will not greatly affect the heat preservation effect of the food material inside the inner container 210. Moreover, compared with the gap 226 being arranged on the inner container 210, it can prevent the food, such as soup, in the inner container 210 from leaking out of the gap 226.

[0058] Further, in some embodiments, as shown in Figure 1 and Figure 2 , the container cover 40 is threadedly connected or snap-connected (not shown in the figure) with the container body 10. The connection is firm and the operation is convenient.

[0059] Further, in some embodiments, as shown in Figure 1 and Figure 2 , the bottom of the container cover 40 is provided with a pressing rib 422, which presses the inner container assembly 20 against the support step 111 when the container cover 40 is covered on the container body 10. On the one hand, it can prevent the inner lid 220 from being lifted by the air pressure inside the inner container 210, and on the other hand, it can improve the stability of the placement of the inner container assembly 20 and prevent the inner container assembly 20 from moving up and down in the container body 10.

[0060] As an example, as shown in Figure 1 and Figure 2 As shown, the extrusion ribs 422 are annular and distributed circumferentially around the central axis of the container cover 40 to circumferentially squeeze the inner cover assembly. Of course, the extrusion ribs 422 can also be distributed circumferentially around the central axis of the container cover 40 at intervals.

[0061] Furthermore, in some embodiments, Figure 1 and Figure 2 As shown, the container cover 40 includes: a cover body 410, a shielding rib 412 extending downward at the edge of the cover body 410, and the top opening of the container body 10 extends into the inner side of the shielding rib 412; an inner plug 420, an inner plug 420 having an insulating cavity 421, and the inner plug 420 is arranged at the bottom of the cover body 410 and extends into the top opening of the container body 10.

[0062] In these embodiments, the container lid 40 includes a lid body 410 and an inner plug 420. When the container lid 40 is closed on the container body 10, the inner plug 420 extends into the heat-insulating cavity 421, and the inner plug 420 has an interior heat-insulating cavity 421. The inner plug 420 can extend deeper into the top opening of the container body 10, thereby reducing heat transfer between the interior cavity of the container body 10 and the outside world through the container lid 40, thereby improving the thermal insulation effect. In addition, the shielding ribs 412 on the edge of the lid body 410 can shield the top opening of the container body 10, improving the appearance and further reducing heat transfer between the interior cavity of the container body 10 and the outside world.

[0063] As an example, Figure 1 and Figure 2 As shown, when the container lid 40 is threadedly connected to the container body 10, the internal threads on the container lid 40 can be set on the inner side wall of the shielding rib 412, and the outer side wall of the top opening of the container body 10 has external threads, which is simple in structure and easy to process. Moreover, the connection structure between the container body 10 and the container lid 40 is located inside the shielding rib 412, which improves the appearance.

[0064] As an example, when the container cover 40 is connected to the container body 10 by snap-fit ​​connection, a snap fit (not shown in the figure) can be provided on the inner wall of the shielding rib 412, and a snap fit groove (not shown in the figure) can be provided on the outer side of the top opening of the container body 10. The connection structure between the container body 10 and the container cover 40 is located on the inner side of the shielding rib 412, and the appearance effect is good.

[0065] Furthermore, in some embodiments, Figure 1 and Figure 2 As shown, the container cover 40 further includes a heat insulating member 430, which is disposed in the heat insulating cavity 421. Compared to leaving the heat insulating cavity 421 empty and using air for heat insulation, arranging the heat insulating member 430 in the heat insulating cavity 421 is conducive to further improving the heat insulating effect, thereby improving the heat insulating effect of the heat insulating container.

[0066] As an example, the heat insulating member 430 is a polystyrene member. It is light in weight, good in heat insulation, strong in adaptability to temperature and humidity changes, and good in chemical stability.

[0067] Of course, the heat insulating member 430 can also be other materials, such as glass wool, etc.

[0068] Further, in some embodiments, the container body 10 comprises a container shell 120 and a container liner 110 inside the container shell 120, and the container shell 120 and the container liner 110 are vacuum insulated or filled with heat insulating material to improve the heat insulation effect of the heat preservation container. In combination with the heat insulating member 430 in the container cover 40, the heat preservation container is multi-directionally insulated and has good heat preservation effect.

[0069] Further, in some embodiments, the cover body 410 and the inner plug 420 are welded together. On the one hand, the cover body 410 and the inner plug 420 are firmly connected to ensure that they are moved at the same time, and on the other hand, it is beneficial to seal the heat insulating member 430 in the inner plug 420 to prevent moisture and other impurities from entering the heat insulating cavity 421. It should be noted that in specific applications, the heat insulating member 430 is placed in the heat insulating cavity 421 of the inner plug 420 before welding, and then welded.

[0070] Of course, the cover body 410 and the inner plug 420 can also be fixed together by other means, such as screw connection or buckle connection, etc.

[0071] Further, in some embodiments, the inner box 210 and the inner box cover 220 are connected by rotating and buckling. The structure is simple, easy to assemble and firm.

[0072] As an example, as shown in Figure 2 The bottom of the inner box cover 220 has a connecting rib extending into the inner box 210, the outer side wall of the connecting rib is provided with a buckling part, and the inner side wall of the inner box 210 is provided with a protruding part. During the process of closing the inner box cover 220, the protruding part extends into the buckling part, and then rotates by a certain angle to be buckled with the buckling part.

[0073] Of course, the inner box 210 and the inner box cover 220 can also be connected together by other means.

[0074] After the inner box assembly 20 is assembled, the inner box assembly 20 is placed into the container body 10 from top to bottom. The inner side wall of the container body 10 is provided with a support step 111, and the top of the inner box 210 is provided with an outwardly extending flange 211, which is placed on the support step 111 so as not to fall down. Finally, the container cover 40 is closed on the container body 10 to complete the assembly of the whole heat preservation container.

[0075] Further, in some embodiments, the heat preservation container is a heat preservation pot or a heat preservation lunch box.

[0076] The heat-insulating container provided by the embodiment of the utility model has a simple and reasonable structure, a good heat-insulating effect, is convenient to open and close, and opens and closes quietly.

[0077] Although the embodiments of the present invention have been described in detail above, those skilled in the art may make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the present invention. It should be understood that, in the opinion of those skilled in the art, such 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 thermal insulation container, characterized in that: The thermal insulation container comprises: A container body (10), wherein a supporting step (111) is provided on the inner side wall of the container body (10); An inner box assembly (20) is mounted on the support step (111) and located inside the container body (10), the inner box assembly (20) comprising an inner box (210) and an inner box cover (220) covering the inner box (210); a sealing member (30) disposed on the outer periphery of the inner box cover (220), wherein the sealing member (30) is capable of sealing a gap between the inner box cover (220) and the container body (10); A container cover (40) is covered on the container body (10).

2. The heat-insulating container according to claim 1, characterized in that: A sealing member installation groove (221) is provided on the outer periphery of the inner box cover (220), and a portion of the sealing member (30) is embedded in the sealing member installation groove (221).

3. The heat-insulating container according to claim 2, characterized in that: The bottom wall of the sealing member installation groove (221) is further provided with a connecting rib (222), the inner side wall of the sealing member (30) is provided with a connecting groove (311), the connecting rib (222) is inserted into the connecting groove (311), and the two opposite groove side walls of the connecting groove (311) are inserted into the sealing member installation groove (221).

4. The heat-insulating container according to claim 1, characterized in that: The sealing member (30) comprises a sealing ring (310) and a sealing rib (320) extending upward or downward from the outer side wall of the sealing ring (310), wherein a gap is left between the inner side of the sealing rib (320) and the outer side wall of the sealing ring (310). When the inner box assembly (20) is placed in the container body (10), the sealing rib (320) is tightly fitted with the inner side wall of the container body (10).

5. The thermal insulation container according to any one of claims 1 to 4, characterized in that: The inner box cover (220) is provided with an exhaust hole (223) that passes through from top to bottom, and an exhaust valve (224) is provided at the exhaust hole (223).

6. The thermal insulation container according to any one of claims 1 to 4, characterized in that: The bottom of the inner box cover (220) also has a radially penetrating notch (226). When the inner box cover (220) is covered on the inner box (210), the notch (226) connects the inner cavity of the inner box (210) and the inner cavity of the container body (10).

7. The thermal insulation container according to any one of claims 1 to 4, characterized in that: The container cover (40) is threadedly connected or snap-fitted to the container body (10); and / or The bottom of the container cover (40) is provided with an extrusion rib (422), and when the container cover (40) is covered on the container body (10), the extrusion rib (422) presses the inner box assembly (20) against the supporting step (111).

8. The thermal insulation container according to any one of claims 1 to 4, characterized in that: The container cover (40) comprises: A cover body (410), wherein the edge of the cover body (410) is provided with a shielding rib (412) extending downward, and the top opening of the container body (10) extends into the inner side of the shielding rib (412); An inner plug (420) has an insulating cavity (421) inside the inner plug (420), and the inner plug (420) is arranged at the bottom of the cover body (410) and extends into the top opening of the container body (10).

9. The heat-insulating container according to claim 8, characterized in that: The container cover (40) further includes a heat insulating member (430), and the heat insulating member (430) is disposed in the heat insulating cavity (421).

10. The heat-insulating container according to claim 9, characterized in that: The heat insulating member (430) is a polystyrene member, and / or the cover body (410) and the inner plug (420) are welded together.

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