Corrugated carton with thermal insulation structure

Abstract

The utility model provides a corrugated carton with heat -insulating structure belongs to corrugated carton technical field. Including square corrugated box, the bottom surface fixed heat insulation bottom plate of corrugated box, four inner walls of corrugated box all are pasted and are provided with heat insulation side plate, and every inner wall on corrugated box all is provided with the limiting piece for fixing heat insulation side plate, heat insulation side plate is provided with the clamping groove to the one side of corrugated box inner wall, and limiting piece detachable installation is on the inner wall of corrugated box, and is formed to heat insulation side plate clamping joint fixed through with clamping groove vertical sliding fit. The utility model, not only effectively promoted the overall heat -insulating performance of corrugated carton, guaranteed the transportation safety to the temperature sensitive article, and simple structure, convenient to dismouting, low maintenance cost, whole use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, and in particular to a corrugated cardboard box with a heat insulation structure. Background Technology

[0002] Corrugated cardboard boxes are a common packaging container widely used in logistics and goods storage. However, traditional corrugated cardboard boxes are mainly made of paper, which has poor thermal insulation properties. When transporting temperature-sensitive items (such as fresh food, medicine, or chemical products), the internal temperature of the box is easily affected by the external environment, leading to spoilage or damage of the goods.

[0003] Currently, existing technologies generally improve the heat insulation effect of corrugated boxes by using fixed filling structures or integral composite lamination processes. However, this also results in high costs, inconvenient disassembly, and difficulty in reuse. In particular, the internal heat insulation layer is easily damaged during use, which will cause the entire corrugated box with heat insulation function to be scrapped.

[0004] Therefore, this application provides a corrugated cardboard box with a heat-insulating structure to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a corrugated cardboard box with a heat insulation structure to solve the problems of traditional corrugated cardboard boxes, which have poor heat insulation performance and are therefore easily affected by the external environment, as well as the problems of high cost, inconvenient disassembly, difficulty in reuse, and overall scrapping caused by the use of fixed filling or integral composite lamination process in existing improved technologies.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A corrugated cardboard box with a heat insulation structure includes a square corrugated box body, a heat insulation bottom plate fixed to the bottom surface of the corrugated box body, heat insulation side plates attached to the four inner walls of the corrugated box body, and a limiting member for fixing the heat insulation side plate is provided on each inner wall of the corrugated box body. The heat-insulating side plate has a slot on the side facing the inner wall of the corrugated box, and the limiting member can be detachably installed on the inner wall of the corrugated box, and forms a locking and fixing of the heat-insulating side plate by vertically sliding with the slot.

[0007] Optionally, the corrugated box has an opening at the top, with multiple lids attached to the edge of the opening.

[0008] Optionally, the side of the heat-insulating side panel away from the inner wall of the corrugated box is wrapped with a protective film.

[0009] Optionally, the slot has a vertical T-shaped groove, and the limiting member is a strip-shaped slider with a T-shaped end cross-section.

[0010] Optionally, a threaded post is fixed to the middle of one side of the limiting member facing the inner wall of the corrugated box. The threaded post extends horizontally out of the outer side of the corrugated box and is fitted with a fastening nut.

[0011] Optionally, the fastening nut is further fitted with an elastic washer on the side facing the corrugated box surface. The elastic washer is concentrically arranged with the fastening nut and is fitted onto the threaded post.

[0012] Optionally, the side wall of the corrugated box is provided with a through hole for the threaded post to pass through horizontally.

[0013] Compared with the prior art, this utility model has at least the following beneficial effects: In the above solution, the T-shaped slot on the heat insulation side plate and the T-shaped limiting piece that is detachably installed on the inner wall of the box can be slidably engaged to achieve quick vertical insertion and fixing of the heat insulation side plate, thereby simplifying the assembly process and facilitating subsequent individual disassembly, replacement or cleaning of the heat insulation components, thus significantly improving the reusability and economic efficiency of the packaging box. In the above solution, the combination of the threaded post on the back of the limiting member, the fastening nut, and the elastic washer can provide a uniform and flexible locking force from the outside of the box. This achieves the effect of ensuring that the heat insulation side plate is tightly attached to the inner wall of the box and is reliably fixed, while avoiding the pressure concentration of the fastening nut that could damage the corrugated cardboard box wall, thereby protecting the integrity of the box structure.

[0014] In summary, this device not only effectively improves the overall thermal insulation performance of corrugated cardboard boxes, ensuring the safety of transporting temperature-sensitive items, but also has a simple structure, is easy to assemble and disassemble, has low maintenance costs, and has good overall performance. Attached Figure Description

[0015] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of a corrugated box. Figure 3 This is a structural diagram of a corrugated cardboard box with a heat-insulating structure; Figure 4 This is a structural diagram of a corrugated cardboard box with a heat-insulating structure.

[0017] [Figure Labels] 1. Corrugated box body; 2. Box cover; 3. Insulated bottom plate; 4. Insulated side plate; 401. Card slot; 402. Protective film layer; 5. Limiting component; 6. Threaded post; 7. Fastening nut; 8. Elastic washer.

[0018] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0019] The following is a detailed description of a corrugated cardboard box with a heat-insulating structure provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0020] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0021] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0022] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0023] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0024] like Figures 1 to 4 As shown, an embodiment of the present invention provides a corrugated cardboard box with a heat-insulating structure, including a square corrugated box body 1. The top of the corrugated box body 1 is provided with an opening for easy access to items. The edge of the opening is hinged with four inwardly folding box lids 2 through die-cutting and creasing lines. When closed, the box lids 2 can completely cover the top opening of the box body.

[0025] A rectangular heat-insulating base plate 3 is fixedly bonded to the bottom surface of the corrugated box 1 with food-grade hot melt adhesive. In this embodiment, the heat-insulating base plate 3 is made of extruded polystyrene foam board (XPS) with a thickness of 8mm, which can effectively block the heat transfer from the ground.

[0026] On each of the four inner walls of the corrugated box 1, a rectangular heat-insulating side panel 4 is attached. The heat-insulating side panel 4 is also made of XPS material, with a thickness of 10mm. Its height is consistent with the height of the inner wall of the box, and its width is adapted to the width of each inner wall. A groove 401 is vertically formed on the side surface of the heat-insulating side panel 4 facing the inner wall of the corrugated box 1, running through its upper and lower ends. The groove 401 has a T-shaped cross-section. On the side surface of the heat-insulating side panel 4 away from the inner wall of the box, that is, the side facing the interior space, a 0.2mm thick low-density polyethylene protective film layer 402 is completely wrapped and covered. This film layer is firmly bonded to the heat-insulating board substrate through a heat-pressing process, and has good moisture-proof, oil-proof, and minor scratch-resistant properties.

[0027] The side wall of the corrugated box 1 is provided with a limiting member 5 for fixing the heat insulation side plate 4. The limiting member 5 is a strip-shaped slider made of nylon 66 injection molding, and its length is less than the height of the heat insulation side plate 4. The end cross-section of the limiting member 5 is designed as a T-shape to cooperate with the slot 401. Its protruding T-shaped head is 4.8mm wide and 7.8mm high, with a 0.2mm assembly gap to ensure smooth sliding. A stainless steel threaded post 6 is vertically fixed to the middle of the side of the limiting member 5 facing the inner wall of the corrugated box 1. It is firmly connected to the limiting member 5 by an embedded injection molding integral molding method. On the side wall of the corrugated box 1, corresponding to the installation position of each limiting member 5, a circular through hole with a diameter of about 4.5mm is pre-punched to allow the threaded post 6 to pass through horizontally.

[0028] The working principle of this utility model is as follows: During assembly of the corrugated cardboard box with an insulated structure, firstly, the threaded post 6 is passed through the through hole from the inside of the box, allowing the limiting member 5 to abut against the predetermined position on the inner wall of the box. Then, a silicone elastic washer 8 and a fastening nut 7 are sequentially fitted onto the threaded post 6 located on the outside of the box. The elastic washer 8 has good elastic recovery properties. After initially tightening the fastening nut 7 with a tool, the limiting member 5 is initially fixed, but it can still be finely adjusted to align with the position.

[0029] Subsequently, align the T-shaped slot 401 on the insulated side panel 4 with the T-shaped head of the fixed limiting member 5, and smoothly slide it down vertically until the bottom of the insulated side panel 4 contacts the insulated bottom plate 3 inside the box. Finally, tighten the fastening nut 7 again. The elastic washer 8 undergoes elastic deformation under the pressure of the nut, which on the one hand increases the anti-loosening performance of the threaded pair, and on the other hand, the rebound force generated by it distributes the pressure evenly on the surface of the corrugated cardboard, effectively avoiding the problem of box wall crushing caused by stress concentration, thereby firmly and stably fixing the entire insulated side panel 4 to the inner wall of the box. This design allows any insulated side panel 4 or insulated bottom plate 3 to be disassembled and replaced individually when partially damaged, greatly extending the service life of the corrugated box 1 itself, reducing the cost of use, and ensuring excellent and consistent heat insulation effect.

[0030] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A corrugated cardboard box with a heat-insulating structure, comprising a square corrugated box body (1), characterized in that, The bottom surface of the corrugated box (1) is fixed with a heat-insulating bottom plate (3), and the four inner walls of the corrugated box (1) are fitted with heat-insulating side plates (4), and each inner wall of the corrugated box (1) is provided with a limiting member (5) for fixing the heat-insulating side plate (4). The heat insulation side plate (4) has a slot (401) on the side facing the inner wall of the corrugated box (1), and the limiting member (5) is detachably installed on the inner wall of the corrugated box (1) and forms a snap-fit ​​and fixation of the heat insulation side plate (4) by vertically sliding with the slot (401).

2. The corrugated cardboard box with a heat-insulating structure according to claim 1, characterized in that, The corrugated box (1) has an opening at the top, and multiple box covers (2) are connected to the edge of the opening.

3. The corrugated cardboard box with a heat-insulating structure according to claim 1, characterized in that, The side of the heat-insulating side panel (4) away from the inner wall of the corrugated box (1) is covered with a protective film layer (402).

4. The corrugated cardboard box with a heat-insulating structure according to claim 1, characterized in that, The slot (401) contains a vertical T-shaped groove, and the limiting member (5) is a strip-shaped slider with a T-shaped end cross section.

5. The corrugated cardboard box with a heat-insulating structure according to claim 1, characterized in that, The limiting member (5) has a threaded post (6) fixed in the middle of one side facing the inner wall of the corrugated box (1). The threaded post (6) extends horizontally out of the outer side of the corrugated box (1) and is fitted with a fastening nut (7).

6. The corrugated cardboard box with a heat-insulating structure according to claim 5, characterized in that, The fastening nut (7) is also fitted with an elastic washer (8) on the side facing the surface of the corrugated box (1). The elastic washer (8) is concentrically arranged with the fastening nut (7) and is fitted on the threaded post (6).

7. The corrugated cardboard box with a heat-insulating structure according to claim 6, characterized in that, The corrugated box (1) has a through hole on its side wall for the threaded column (6) to pass through horizontally.

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