Insulated containers and their lids

Abstract

This utility model discloses an insulated container and its lid, which can completely seal the insulation material, preventing leakage and avoiding insulation failure. The lid includes an insulation layer, a protective layer, and a body. The insulation layer is made of insulation material. The protective layer completely covers the surface of the insulation layer, with a first flange protruding upwards along its upper edge. The protective layer includes several protective sheets with overlapping edges, and the overlapping parts are connected using a high-frequency heat-sealing process. The body covers the top and sides of the protective layer and the first flange, and the portion of the body that fits against the first flange is connected using a sewing process.

Description

Technical Field

[0001] This utility model belongs to the field of thermal insulation container technology, and specifically refers to a thermal insulation container and its lid. Background Technology

[0002] Medium and large insulated containers are typically manufactured in the form of boxes, bags, or barrels. They are insulated and can hold a large number of items, making them widely used in fields such as food delivery, pharmaceuticals, and scientific research where items need to be moved and kept warm. The container body contains special materials such as insulating cotton, which can achieve both heat insulation and cold / heat retention. This allows the container to maintain a short-term temperature, making it suitable for storing food, medicines, samples, etc., providing a stable temperature environment to maintain the temperature and freshness of these items.

[0003] In some industries or application scenarios, insulated containers have high requirements for airtightness, especially when the contents are liquids or may produce liquids. The requirement is that the container must not leak whether it is placed normally or tilted. However, current production processes typically use sewing to assemble insulation materials such as thermal cotton with inner and outer waterproof fabrics into a single unit. These sewing holes can allow liquid to enter the lid, causing water ingress and insulation failure. Furthermore, when manufacturers sew handles onto the lid, these sewing holes may also penetrate the insulation. Utility Model Content

[0004] The main purpose of this utility model is to provide an insulated container and its lid, which solves the problems existing in the prior art, can completely seal the insulation material, prevent leakage, and avoid insulation failure.

[0005] To achieve the above objectives, one of the solutions of this utility model is:

[0006] A cover includes a cover insulation layer, a cover protective layer, and a cover body; the cover insulation layer is made of insulation material; the cover protective layer completely covers the surface of the cover insulation layer, and its upper surface edge is provided with an upwardly protruding first flange; the cover protective layer includes several protective sheets with adjacent overlapping edges, and the overlapping parts of the protective sheets are connected by a high-frequency heat sealing process; the cover body covers the top and sides of the cover protective layer and the first flange, and the part of the cover body that fits against the first flange is connected by a sewing process.

[0007] The cover body can be a single piece or designed as an outer cover and an outer perimeter, so that different materials can be used according to product requirements; the outer cover is located above the insulation layer of the cover body, and its upper surface edge is provided with an upwardly protruding second flange; the outer perimeter surrounds the side of the insulation layer of the cover body, and its upper part is connected to the first flange and the second flange by a sewing process.

[0008] Preferably, the upper edge of the periphery is provided with an inwardly turned-up edging, and the periphery, the first flange, the second flange and the edging are attached together in sequence from the outside to the inside and connected by a sewing process.

[0009] Preferably, the front and rear sides of the periphery are connected with handles by a sewing process.

[0010] The protective layer of the cover includes a top protective sheet, a bottom protective sheet, and a side protective sheet that respectively fit onto the upper surface, lower surface, and side surface of the cover insulation layer; the upper edge of the side protective sheet is higher than the upper surface of the cover insulation layer, the top protective sheet is provided with a first folded edge that fits against the upper edge of the side protective sheet, and the first folded edge is connected to the upper edge of the side protective sheet by a high-frequency heat sealing process to form a first flange; the lower edge of the side protective sheet is provided with a second folded edge that covers the edge of the bottom protective sheet, and the second folded edge is connected to the edge of the bottom protective sheet by a high-frequency heat sealing process.

[0011] The material of the cover insulation layer is insulating pearl cotton; the material of the cover protective layer is thermoplastic polyurethane.

[0012] The second solution of this utility model is:

[0013] An insulated container includes a lid, a container body, and an inner container; the inner container is separately designed from the container body and movably fitted within the container body, and is made of a rigid material; the lower outer edge of the lid is movably connected to the opening of the container body, and the lower surface of the lid dynamically seals the opening of the inner container.

[0014] The container body includes an outer container layer, a container insulation layer, and an inner container layer, from the outside to the inside. The container insulation layer is made of insulation material, specifically insulating pearl cotton. The outer container layer is a waterproof cloth, and the inner container layer is waterproof PEVA. The inner container is an insulated plastic bucket.

[0015] The opening between the cover and the inner container is configured as an end face seal or an embedded seal.

[0016] The opening of the container body is provided with a positioning ring groove, and the upper edge of the side of the inner container is provided with a positioning flange that is movably embedded in the positioning ring groove; the positioning flange is provided with a handle.

[0017] The inner container is equipped with a partition.

[0018] After adopting the above technical solution, the present invention has the following technical effects:

[0019] The overlapping parts of the protective sheets constituting the protective layer of the cover are connected using a high-frequency heat sealing process. Each protective sheet completely covers the surface of the cover's insulation layer, and the overlapping parts of the protective sheets are completely sealed using the high-frequency heat sealing process, thereby completely sealing the cover's insulation layer. This prevents water from entering the cover and avoids insulation failure. At the same time, the seam positions of the cover's outer perimeter with the cover's protective layer and the outer cover are located at the first and second flanges of both. The first and second flanges are both located above the upper surface of the cover's insulation layer. This seam process ensures the overall structural strength of the cover and avoids leaving seam holes on the surface of the cover's insulation layer, ensuring its airtightness. Attached Figure Description

[0020] Figure 1 This is a perspective view of the first embodiment of the present utility model.

[0021] Figure 2 This is an exploded view of the first embodiment of the present invention.

[0022] Figure 3 This is a partial structural cross-sectional view of the first embodiment of the present utility model.

[0023] Figure 4 This is a perspective view of the closed state of the second embodiment of this utility model.

[0024] Figure 5 This is a perspective view of the second embodiment of the present invention in its open state.

[0025] Figure 6 This is an exploded view of the second embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the layer structure of the second embodiment of the present invention.

[0027] Explanation of icon numbers:

[0028] 1-Lid; 11-Lid insulation layer; 12-Lid protective layer; 121-First flange; 12a-Top protective piece; 12b-Bottom protective piece; 12c-Side protective piece; 12d-First folded edge; 12e-Second folded edge; 13-Outer cover; 131-Second flange; 14-Outer perimeter; 141-Edge binding; 15-Handle; 16-Zipper;

[0029] 2-Container body; 21-Positioning ring groove; 2a-Outer layer of container; 2b-Insulation layer of container; 2c-Inner layer of container;

[0030] 3-Inner container; 31-Positioning flange; 32-Handle position;

[0031] 4-Partition. Detailed Implementation

[0032] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0033] refer to Figures 1 to 3 As shown, the first embodiment of the present invention is illustrated, which discloses a cover 1, including a cover insulation layer 11, a cover protective layer 12, an outer cover 13, and a periphery 14;

[0034] The insulation layer 11 of the cover is made of insulation material;

[0035] The cover protective layer 12 completely covers the surface of the cover insulation layer 11, and a first flange 121 protruding upward is provided on the edge of its upper surface; the cover protective layer 12 includes several protective sheets with overlapping adjacent edges, and the overlapping parts of the protective sheets are connected by high frequency heat sealing process (also known as high frequency hot pressing process).

[0036] The outer cover 13 is positioned above the heat insulation layer 11 of the cover body, and its upper surface edge is provided with a second flange 131 that protrudes upward, and the second flange 131 is located inside the first flange 121;

[0037] The outer periphery 14 surrounds the side of the insulation layer 11 of the cover, and its upper part is connected to the first flange 121 and the second flange 131 by a sewing process.

[0038] Through the above scheme, the overlapping parts of each protective sheet constituting the protective layer 12 of the cover 1 are connected by high-frequency heat sealing process. Each protective sheet completely covers the surface of the cover insulation layer 11, and the overlapping parts of the protective sheets are completely sealed by high-frequency heat sealing process, thereby completely sealing the cover insulation layer 11, preventing water from entering the cover 1 and avoiding insulation failure. At the same time, the sewing positions of the outer periphery 14 of the cover 1 with the cover protective layer 12 and the outer cover 13 are located at the first flange 121 and the second flange 131 of the two. The first flange 121 and the second flange 131 are both located above the upper surface of the cover insulation layer 11. The sewing process can ensure the overall structural strength of the cover 1 and avoid leaving sewing holes on the surface of the cover insulation layer 11, thus ensuring its airtightness.

[0039] The details of the first embodiment are disclosed below.

[0040] The upper edge of the aforementioned outer periphery 14 is provided with an inwardly turned-out edging 141. The main body of the outer periphery 14, the first flange 121, the second flange 131, and the edging 141 are sequentially attached together from the outside to the inside and connected by a sewing process. Thus, the edging 141 can be used to cover the first flange 121 and the second flange 131, providing protection and also enhancing the appearance of the product.

[0041] The preferred insulation material is insulating pearl cotton, or other materials with excellent insulation properties.

[0042] In the first embodiment, the aforementioned cover protective layer 12 includes a top protective sheet 12a, a bottom protective sheet 12b, and a side protective sheet 12c, which are respectively fitted onto the upper surface, lower surface, and side surface of the cover insulation layer 11. The upper edge of the side protective sheet 12c is higher than the upper surface of the cover insulation layer 11. The top protective sheet 12a is provided with a first folded edge 12d that fits against the upper edge of the side protective sheet 12c. The first folded edge 12d and the upper edge of the side protective sheet 12c are connected by a high-frequency heat sealing process to form the aforementioned first flange 121. The lower edge of the side protective sheet 12c is provided with a second folded edge 12e that covers the edge of the bottom protective sheet 12b. The second folded edge 12e and the edge of the bottom protective sheet 12b are connected by a high-frequency heat sealing process. Thus, the cover insulation layer 11 can be completely covered and sealed by the three protective sheets.

[0043] The material of the aforementioned cover protective layer 12 is preferably TPU (thermoplastic polyurethane).

[0044] The outer surface of the aforementioned periphery 14 is connected to a handle 15 by a sewing process. In the first embodiment, one handle 15 is provided on each of the front and rear sides of the periphery 14; typically, the lid 1 and the main body of the insulated container are configured as a front and rear flip-top fit (see...). Figure 5 With a handle 15 on the front side of the outer perimeter 14, it is easy to open the lid.

[0045] A zipper 16 is provided on the lower edge of the aforementioned outer perimeter 14 to enable the opening and closing function with the main body of the insulated container.

[0046] The outer cover 13 mentioned above is made of cold-rolled steel sheet, which has good surface quality and high smoothness.

[0047] refer to Figures 4 to 7The diagram illustrates a second embodiment of this invention, disclosing a thermal insulated container, including the aforementioned lid 1, a container body 2, and an inner container 3. The inner container 3 is separately designed from the container body 2 and movably fitted within the container body 2, and is made of a rigid material. The lower edge of the outer periphery 14 of the lid 1 is movably connected to the opening of the container body 2, and the lower surface of the lid 1 dynamically seals the opening of the inner container 3. Thus, both the lid 1 and the inner container 3 of the thermal insulated container have excellent sealing performance, forming a multi-layered thermal insulation space through the container body 2 and the inner container 3. The rigid inner container 3 also ensures that the thermal insulation space will not easily deform.

[0048] Details of the second embodiment are disclosed below.

[0049] The container body 2 comprises, from the outside in, an outer container layer 2a, a container insulation layer 2b, and a container inner layer 2c, wherein the container insulation layer 2b is made of insulation material. In the second embodiment, the insulation material is preferably insulation pearl cotton; the outer container layer 2a is waterproof cloth, and the inner container layer 2c is waterproof PEVA (polyethylene-vinyl acetate). Furthermore, the surface of the container body 2 may also have designs such as shoulder straps and zippered pockets.

[0050] The inner container 3 mentioned above is an insulated plastic bucket, which provides both a certain degree of rigidity and heat preservation performance.

[0051] The size of the aforementioned lid insulation layer 11 is larger than the opening of the inner container 3, so that after the lid 1 is placed on the container body 2, the lower surface of the lid 1 can completely cover the opening of the inner container 3, achieving an end-face seal. Alternatively, the size of the lid insulation layer 11 can also be slightly larger than the opening of the inner container 3, so that after the lid 1 is placed on the container body 2, the lower surface of the lid 1 will be embedded in the opening of the inner container 3 (the lid insulation layer 11 itself has a certain degree of elasticity), allowing the circumference of the lid insulation layer 11 to fit tightly against the side wall of the inner container 3 through the lid protective layer 12, achieving a tight-fitting embedded seal. Both of these methods achieve good sealing effects, and the end-face seal design, compared to the lid insulation layer 11 being embedded in the inner wall of the opening of the inner container 3, does not generate excessive resistance when opening the lid, making it easier to open.

[0052] The opening of the container body 2 is provided with a positioning ring groove 21, and the upper edge of the side of the inner container 3 is provided with a positioning flange 31 that is movably embedded in the positioning ring groove 21, thereby realizing the positioning and cooperation between the inner container 3 and the container body 2, and the inner container 3 will not shake inside the container body 2.

[0053] Furthermore, the aforementioned positioning flange 31 is provided with a handle 32 to facilitate the removal of the inner container 3 from the container body 2.

[0054] The aforementioned inner container 3 is equipped with a partition 4, which allows for layered placement of items. The partition 4 can be designed with a hollow structure to reduce weight and lower costs.

[0055] In the second embodiment, the rear edge of the cover 1 is sewn together with the rear edge of the container body 2, and the opening and closing connection is achieved by a zipper.

[0056] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A cover, characterized in that: Includes the cover insulation layer, the cover protective layer, and the cover body; The insulation layer of the cover is made of insulation material; The protective layer of the cover completely covers the surface of the thermal insulation layer of the cover, and a first flange protruding upward is provided on the edge of its upper surface; the protective layer of the cover includes several protective sheets with overlapping adjacent edges, and the overlapping parts of the protective sheets are connected by a high-frequency heat sealing process. The cover body covers the top and sides of the cover protective layer and the first flange, and the part that fits with the first flange is connected by a sewing process.

2. The cover as described in claim 1, characterized in that: The cover body includes a separate outer cover and an outer perimeter; the outer cover is located above the cover body's insulation layer, and its upper surface edge is provided with an upwardly protruding second flange; the outer perimeter surrounds the side of the cover body's insulation layer, and its upper part is connected to the first flange and the second flange by a sewing process.

3. The cover as described in claim 2, characterized in that: The upper edge of the outer periphery is provided with an inwardly turned-in edging. The outer periphery, the first flange, the second flange and the edging are attached together in sequence from the outside to the inside and connected by a sewing process.

4. The cover as described in claim 2, characterized in that: The front and back sides of the outer perimeter are connected with handles by a sewing process.

5. The cover as described in claim 1, characterized in that: The protective layer of the cover includes a top protective sheet, a bottom protective sheet, and a side protective sheet that respectively fit onto the upper surface, lower surface, and side surface of the cover insulation layer; the upper edge of the side protective sheet is higher than the upper surface of the cover insulation layer, the top protective sheet is provided with a first folded edge that fits against the upper edge of the side protective sheet, and the first folded edge is connected to the upper edge of the side protective sheet by a high-frequency heat sealing process to form a first flange; the lower edge of the side protective sheet is provided with a second folded edge that covers the edge of the bottom protective sheet, and the second folded edge is connected to the edge of the bottom protective sheet by a high-frequency heat sealing process.

6. The cover as described in claim 1, characterized in that: The material of the cover insulation layer is insulating pearl cotton; the material of the cover protective layer is thermoplastic polyurethane.

7. A thermal insulated container, comprising a lid as described in any one of claims 1 to 6, characterized in that: It also includes a container body and an inner container; the inner container is designed separately from the container body and is movably fitted within the container body, and is made of a rigid material; the lower outer edge of the cover is movably connected to the opening of the container body, and the lower surface of the cover dynamically seals the opening of the inner container.

8. The heat-insulating container as described in claim 7, characterized in that: The container body includes an outer container layer, a container insulation layer, and an inner container layer, from the outside to the inside. The container insulation layer is made of insulation material, specifically insulating pearl cotton. The outer container layer is a waterproof cloth, and the inner container layer is waterproof PEVA. The inner container is an insulated plastic bucket.

9. The heat-insulating container as described in claim 7, characterized in that: The opening between the cover and the inner container is configured as an end face seal or an embedded seal.

10. The heat-insulating container as described in claim 7, characterized in that: The container body has an opening with a positioning ring groove, and the upper edge of the side of the inner container has a positioning flange that is movably embedded in the positioning ring groove; the positioning flange has a handle; and the inner container has a partition.

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