Circulating heat preservation box

Abstract

The utility model relates to a circulating heat preservation box which can solve the problem that a heat preservation box in the related technology is difficult to control the cost while good heat preservation performance is considered. The circulating heat preservation box comprises a box body, the box body comprises side walls and a bottom wall, and the side walls and the bottom wall define a containing cavity with an opening; the heat preservation structure is detachably embedded in the containing cavity and abuts against the side wall and the bottom wall; the maintaining structure is detachably embedded in the containing cavity and abuts against the side, away from the box body, of the heat preservation structure, and the maintaining structure is used for abutting against the heat preservation structure so that the heat preservation structure can be attached to the side wall and the bottom wall; the box cover is used for covering the opening, and the box cover is used for abutting against the upper edge, close to the opening, of the maintaining structure so that the maintaining structure can be limited in the containing cavity.

Description

Technical Field

[0001] The present application relates to the technical field of thermal insulation packaging, and in particular to a circulating thermal insulation box. Background Art

[0002] With the rapid development of e-commerce, the amount of waste express packaging generated has also increased significantly. Therefore, in the express delivery field, especially in the cold chain transportation field, there is an urgent need for an insulated box that can be recycled multiple times and produced at low cost while having good thermal insulation effect. In the related art, insulated boxes made of XPS, PU+VIP, EPP and EPS are generally used as thermal insulation materials. However, the insulated boxes in the related art have high operating costs due to the reasons such as expensive materials, low number of recyclable times or difficulty in cleaning, making it difficult to control costs while taking into account good thermal insulation performance. Utility Model Content

[0003] Based on this, it is necessary to provide a circulating thermal insulation box to address the problem that the thermal insulation box in the related art is difficult to achieve good thermal insulation performance while better controlling costs.

[0004] A circulating heat preservation box, comprising:

[0005] A box body, the box body comprising side walls and a bottom wall, the side walls and the bottom wall enclosing each other to form a receiving cavity with an opening;

[0006] a heat-insulating structure, the heat-insulating structure being detachably embedded in the accommodating cavity and abutting against the side wall and the bottom wall;

[0007] a retaining structure, the retaining structure being detachably embedded in the accommodating cavity and abutting against a side of the thermal insulation structure facing away from the box body, the retaining structure being used to abut against the thermal insulation structure so that the thermal insulation structure remains in contact with the side wall and the bottom wall;

[0008] A box cover is used to cover the opening, and the box cover is used to abut against the upper edge of the retaining structure so that the retaining structure is confined within the accommodating cavity.

[0009] In one embodiment, the box body is provided with a clamping portion at the edge corresponding to the opening, and the retaining structure is provided with a first overlapping portion. When the retaining structure is embedded in the accommodating cavity, the first overlapping portion overlaps the clamping portion in the depth direction of the accommodating cavity. The box cover is provided with a clamping groove along its edge, and the clamping groove is used to clamp to the clamping portion and press the first overlapping portion against the clamping portion.

[0010] In one embodiment, the retaining structure is provided with a second overlapping portion. When the retaining structure is embedded in the accommodating cavity, the second overlapping portion overlaps the upper edge of the thermal insulation structure in the depth direction of the accommodating cavity.

[0011] In one embodiment, the overlap area of ​​the second overlap portion and the upper edge of the thermal insulation structure is configured to range from 1 / 3 to the entire thickness of the upper edge of the thermal insulation structure in the thickness direction of the second overlap portion.

[0012] In one embodiment, the retaining structure includes a retaining body for supporting the thermal insulation structure so that the thermal insulation structure remains in contact with the side wall, and an installation gap is provided between the retaining body and the thermal insulation structure.

[0013] In one embodiment, the retaining body and the thermal insulation structure are arranged at an angle to form the installation gap, and the angle is in the range of 3°-5°.

[0014] In one embodiment, the thermal insulation structure includes a plate and a thermal insulation material, and the thermal insulation material is wrapped around the surface of the plate.

[0015] In one embodiment, the thermal insulation material is aluminum foil.

[0016] In one embodiment, the box cover includes a cover body and a thermal insulation top plate. The cover body is provided with a groove, and the thermal insulation top plate is snapped into the groove. The thermal insulation top plate can cover the opening together with the cover body.

[0017] In one embodiment, the box body and the box cover are made of a material with a thermal conductivity coefficient less than or equal to 0.04.

[0018] In one embodiment, the box body and the box cover are made of EPP-VIP composite material or EPP-aerogel composite material.

[0019] The above-mentioned circulating thermal insulation box, by arranging the thermal insulation structure in the receiving cavity of the box body, helps to enhance the thermal insulation performance of the circulating thermal insulation box, and arranging the retaining structure on the side of the thermal insulation structure away from the box body for abutment, and arranging the box cover to abut the upper edge of the retaining structure, helps to improve the limiting effect of the thermal insulation structure in the receiving cavity, thereby improving the working reliability of the circulating thermal insulation box. In addition, the arrangement of the retaining structure to abut the thermal insulation structure allows the thermal insulation structure to be isolated from the objects to be loaded, thereby preventing the thermal insulation structure from directly contacting the objects, improving the life of the thermal insulation structure, and increasing the number of times the circulating thermal insulation box can be recycled. In addition, the thermal insulation structure and the retaining structure are both detachably arranged in the receiving cavity, which makes it easy to remove and replace the thermal insulation structure. In other words, if the thermal insulation structure needs to be replaced due to the decline in thermal insulation performance or damage, it is only necessary to first remove the retaining structure, then insert a new thermal insulation structure, and finally re-insert the retaining structure. In this way, the entire circulating thermal insulation box does not need to be discarded, thereby increasing the number of times the circulating thermal insulation box can be recycled and reducing the operating and maintenance costs of the circulating thermal insulation box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a circulating heat preservation box in one embodiment of the present application.

[0021] Figure 2 for Figure 1 A top view of the circulating incubator is shown.

[0022] Figure 3 for Figure 2 The top view is a cross-sectional view at AA.

[0023] Figure 4 for Figure 3 Magnified view of the structure shown at AA.

[0024] Explanation of Figure Numbers

[0025] 1. Circulating insulation box; 10. Box body; 11. Side wall; 12. Bottom wall; 10a. Accommodating cavity; 10b. Opening; 13. Snap-fitting part; 20. Insulation structure; 30. Retaining structure; 31. First overlapping part; 32. Second overlapping part; 33. Retaining body; 34. Connecting part; 40. Box cover; 40a. Snap-fitting groove; 41. Cover body; 42. Insulation top plate; 50. Adhesive part; 60. Fixing mechanism; 61. Fixing belt; 62. Lock; 63. Seal. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0028] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0029] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0032] Considering that existing thermal insulation boxes have high operating costs due to reasons such as expensive materials, low recyclability, or difficulty in cleaning, it is difficult to achieve good thermal insulation performance while effectively controlling costs. This application provides a circulating thermal insulation box that can effectively control costs while achieving good thermal insulation performance, facilitating its application and promotion.

[0033] For details, please refer to the attached Figures 1 to 3 One embodiment of the present application provides a circulating thermal insulation box 1, which may include a box body 10, an insulation structure 20, a retaining structure 30 and a box cover 40. The box body 10 includes a side wall 11 and a bottom wall 12, and the side wall 11 and the bottom wall 12 enclose a accommodating cavity 10a with an opening 10b. The insulation structure 20 is detachably embedded in the accommodating cavity 10a and abuts against the side wall 11 and the bottom wall 12. The retaining structure 30 is detachably embedded in the accommodating cavity 10a and abuts against the side of the insulation structure 20 facing away from the box body 10. The retaining structure 30 is used to abut the insulation structure 20 so that the insulation structure 20 remains in contact with the side wall 11 and the bottom wall 12. The box cover 40 is used to cover the opening 10b, and the box cover 40 is used to abut the upper edge of the retaining structure 30 so that the retaining structure 30 is confined to the accommodating cavity 10a.

[0034] The above-mentioned circulating thermal insulation box 1, by providing an insulation structure 20 within the accommodating cavity 10a of the box body 10, helps to enhance the thermal insulation performance of the circulating thermal insulation box 1, and provides a retaining structure 30 on the side of the insulation structure 20 away from the box body 10 for abutment, and provides a box cover 40 to abut the upper edge of the retaining structure 30, which helps to improve the limiting effect of the insulation structure 20 within the accommodating cavity 10a, thereby improving the working reliability of the circulating thermal insulation box 1. In addition, the arrangement of the retaining structure 30 to abut the insulation structure 20 allows the insulation structure 20 to be isolated from the items to be loaded, thereby preventing the insulation structure 20 from directly contacting the objects, thereby improving the service life of the insulation structure 20 and increasing the number of times the circulating thermal insulation box 1 can be recycled. In addition, the insulation structure 20 and the retaining structure 30 can be detachably arranged in the accommodating cavity 10a, which facilitates the disassembly and replacement of the insulation structure 20. In other words, if the insulation structure 20 needs to be replaced due to a decrease in insulation performance or damage, it is only necessary to first disassemble the retaining structure 30, then embed a new insulation structure 20, and finally re-embed the retaining structure 30. In this way, there is no need to discard the entire circulating insulation box 1, which can increase the number of times the circulating insulation box 1 can be recycled and reduce the operating and maintenance costs of the circulating insulation box 1.

[0035] Optionally, the aforementioned retaining structure 30 can be, but is not limited to, implemented as a blister box, which has the characteristics of small deformation, durability and easy cleaning. This helps to improve the support effect on the insulation structure 20, and reduces the difficulty of cleaning the circulating insulation box 1, thereby reducing operating costs.

[0036] Optionally, combined Figure 4 As shown, a snap-fit ​​portion 13 is provided at the edge of the box body 10 corresponding to the opening 10b, and the retaining structure 30 is provided with a first overlapping portion 31. When the retaining structure 30 is embedded in the accommodating cavity 10a, the first overlapping portion 31 overlaps the snap-fit ​​portion 13 in the depth direction of the accommodating cavity 10a, and the box cover 40 is provided with a snap-fit ​​groove 40a along its edge. The snap-fit ​​groove 40a is used to snap into the snap-fit ​​portion 13 and press the first overlapping portion 31 against the snap-fit ​​portion 13, thereby improving the limiting effect of the retaining structure 30 in the accommodating cavity 10a, and then improving the retaining effect of the retaining structure 30 on the insulation structure 20, thereby preventing the insulation structure 20 from loosening and moving, and improving the structural stability.

[0037] Specifically, when the engaging groove 40a is engaged with the engaging portion 13, the entire structure of the first overlapping portion 31 and the engaging portion 13 can be engaged within the engaging groove 40a. Optionally, the entire structure of the first overlapping portion 31 and the engaging portion 13 can be interference-fitted with the box cover 40 within the engaging groove 40a. This can improve the retaining effect of the cover 40 on the retaining structure 30, while also improving the sealing effect of the opening 10b of the box body 10, thereby improving the thermal insulation performance of the circulating thermal insulation box 1.

[0038] Optionally, the retaining structure 30 can be provided with a second overlapping portion 32. When the retaining structure 30 is embedded in the accommodating cavity 10a, the second overlapping portion 32 overlaps the upper edge of the insulation structure 20 in the depth direction of the accommodating cavity 10a, thereby further improving the supporting effect of the retaining structure 30 on the insulation structure 20.

[0039] It should be noted that the upper edge of the thermal insulation structure 20 refers to the edge of the thermal insulation structure 20 close to the opening 10b.

[0040] Specifically, by overlapping the first overlapping portion 31 with the upper edge of the thermal insulation structure 20, the movement of the thermal insulation structure 20 in the depth direction of the accommodating cavity 10a can be effectively limited, which helps to improve the supporting effect and structural stability of the thermal insulation structure 20.

[0041] Optionally, the overlap area of ​​the second overlap portion 32 and the upper edge of the insulation structure 20 can be configured to range from 1 / 3 of the thickness d to the entire thickness d of the upper edge of the insulation structure 20 in the thickness d direction of the second overlap portion 32.

[0042] It is worth noting that according to the above embodiments of the present application, combined with Figure 4 As shown, the retaining structure 30 has a connecting portion 34, which is used to connect the first overlapping portion 31 with the second overlapping portion 32. When the engaging groove 40a of the box cover 40 is engaged with the engaging portion 13 of the box body 10, the connecting portion 34 can be pressed against the engaging portion 13 by the box cover 40, thereby ensuring the retaining structure 30 is restrained by the box cover 40. This restraining effect is affected by the overlapping area between the second overlapping portion 32 and the upper edge of the thermal insulation structure 20. This embodiment limits the aforementioned overlapping area to within a range from 1 / 3 of the thickness d to the entire thickness d of the second overlapping portion 32. This prevents the gap between the connecting portion 34 and the engaging portion 13 from being too large, thereby ensuring the pressing effect of the box cover 40 on the connecting portion 34.

[0043] It is also worth noting that when the aforementioned overlapping area is limited to the overlapping of the second overlapping portion 32 for the entire thickness d, the fitting effect between the connecting portion 34 and the clamping portion 13 is the best, and when the aforementioned overlapping area is limited to the overlapping of the second overlapping portion 32 for less than the entire thickness d, a gap can be left between the connecting portion 34 and the clamping portion 13, which helps to reduce the difficulty of embedding the retaining structure 30 into the accommodating cavity 10a, and also reduces the difficulty of disassembly and maintenance of the circulating insulation box 1.

[0044] Therefore, limiting the overlap area to the second overlap portion 32 within the range of 1 / 3 thickness d to the entire thickness d helps to balance the insulation performance of the circulating insulation box 1 while reducing the difficulty of disassembly and maintenance of the circulating insulation box 1.

[0045] Optionally, continue to Figure 4The retaining structure 30 may include a retaining body 33 for supporting the thermal insulation structure 20 so that the thermal insulation structure 20 remains in contact with the side wall 11. There is an installation gap between the retaining body 33 and the thermal insulation structure 20, which can reduce the difficulty of embedding the retaining structure 30 into the accommodating cavity 10a and reduce the difficulty of disassembly and maintenance of the circulating thermal insulation box 1.

[0046] Preferably, continue to refer to Figure 4 The retaining body 33 and the heat-insulating structure 20 may be arranged at an angle α to form the aforementioned installation gap, and the value range of the angle α is 3°-5°. For example, the aforementioned angle α may be 3°, 4°, or 5°.

[0047] Optionally, the insulation structure 20 may include a plate and insulation material, and the insulation material is wrapped around the surface of the plate. In this way, when the insulation structure 20 is maintained and replaced, only the insulation material needs to be removed and replaced, and the plate can be reused, which helps to reduce the maintenance cost of the circulating insulation box 1.

[0048] Optionally, the heat insulating material may be, but is not limited to, implemented as aluminum foil.

[0049] Optionally, continue to Figure 4 The box cover 40 can include a cover body 41 and an insulation top plate 42. The cover body 41 is provided with a groove, and the insulation top plate 42 is snapped into the groove. The insulation top plate 42 can cover the opening 10b with the cover body 41. The insulation top plate 42 is used to improve the insulation effect of the opening 10b of the box body 10.

[0050] Optionally, the thermal insulation top plate 42 may be but is not limited to being bonded to the cover body 41 in the groove, which can improve the connection stability between the thermal insulation top plate 42 and the box cover 40.

[0051] Optionally, the insulation top plate 42 may include, but is not limited to, a plate and an insulation material, wherein the insulation material is wrapped around the surface of the plate. Similarly, the insulation material may be, but is not limited to, aluminum foil.

[0052] Optionally, the box body 10 and the box cover 40 may be made of a material with a thermal conductivity of less than or equal to 0.04, which can help improve the thermal insulation performance of the circulating thermal insulation box 1. For example, the box body 10 and the box cover 40 may be made of a material with a thermal conductivity of 0.04, 0.03, 0.02 or 0.01.

[0053] Optionally, the housing 10 and lid 40 may be made of, but are not limited to, an EPP (Expanded Polypropylene)-VIP (Vacuum Insulation Panel) composite material or an EPP-aerogel composite material. Specifically, the inventors discovered that, in temperature control tests conducted under the same environmental conditions, the housing 10 and lid 40 made of the EPP-VIP composite material or the EPP-aerogel composite material exhibited superior thermal insulation compared to the housing 10 and lid 40 made of either EPP, VIP, or aerogel alone.

[0054] Optionally, the density of the box 10 can be, but is not limited to, set at 30 kg / m³-35 kg / m³. For example, the density of the box 10 can be set to 30 kg / m³, 31 kg / m³, 32 kg / m³, 33 kg / m³, 34 kg / m³, or 35 kg / m³.

[0055] Optionally, the thickness of the box body 10 can be, but is not limited to, set at 18 mm to 22 mm. For example, the thickness of the box body 10 can be set to 18 mm, 19 mm, 20 mm, 21 mm or 22 mm.

[0056] According to the above-mentioned embodiment of the present application, setting the density and thickness of the box body 10 within the aforementioned range helps to effectively control costs while taking into account the thermal insulation performance of the circulating thermal insulation box 1.

[0057] Re-read Figure 1 The circulating thermal insulation box 1 provided in this application can be used in, but is not limited to, the express delivery industry.

[0058] Optionally, the circulating thermal insulation box 1 may include a fixing mechanism 60 , which is used to lock the box cover 40 relative to the box body 10 .

[0059] Optionally, the fixing mechanism 60 may include a fixing belt 61 and a lock buckle 62, one end of the fixing belt 61 is fixedly connected to one side of the box body 10, and the lock buckle 62 is arranged on the other side of the box body 10, and the other end of the fixing belt 61 is used to be fixedly connected to the lock buckle 62, so that the fixing belt 61 presses the box cover 40 onto the box body 10.

[0060] More preferably, the fixing mechanism 60 may further include a seal 63 , and the seal 63 is used to bind the fixing belt 61 to the lock buckle 62 , thereby improving the locking effect of the fixing belt 61 on the box cover 40 .

[0061] Optionally, the circulating thermal insulation box 1 may include a pasting portion 50 for the courier to paste the courier slip. This can not only ensure the pasting effect of the courier slip, but also reduce the situation where the courier sticks the courier slip randomly, thereby reducing the cleaning cost of the circulating thermal insulation box 1.

[0062] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A circulating heat preservation box, characterized in that: The circulating insulation box comprises: A box body, the box body comprising side walls and a bottom wall, the side walls and the bottom wall enclosing each other to form a receiving cavity with an opening; a heat-insulating structure, the heat-insulating structure being detachably embedded in the accommodating cavity and abutting against the side wall and the bottom wall; a retaining structure, the retaining structure being detachably embedded in the accommodating cavity and abutting against a side of the thermal insulation structure facing away from the box body, the retaining structure being used to abut against the thermal insulation structure so that the thermal insulation structure remains in contact with the side wall and the bottom wall; A box cover is used to cover the opening, and the box cover is used to abut against the upper edge of the retaining structure so that the retaining structure is confined within the accommodating cavity.

2. The circulating heat preservation box according to claim 1, characterized in that: The box body is provided with a clamping portion at the edge corresponding to the opening, and the retaining structure is provided with a first overlapping portion. When the retaining structure is embedded in the accommodating cavity, the first overlapping portion overlaps the clamping portion in the depth direction of the accommodating cavity. The box cover is provided with a clamping groove along its edge, and the clamping groove is used to clamp to the clamping portion and press the first overlapping portion against the clamping portion.

3. The circulating heat preservation box according to claim 1, characterized in that: The retaining structure is provided with a second overlapping portion. When the retaining structure is embedded in the accommodating cavity, the second overlapping portion overlaps the upper edge of the heat-insulating structure in the depth direction of the accommodating cavity.

4. The circulating heat preservation box according to claim 3, characterized in that: The overlapping area between the second overlapping portion and the upper edge of the thermal insulation structure is configured to have a value range of: the second overlapping portion overlaps the upper edge of the thermal insulation structure in a range from 1 / 3 to the entire thickness in the thickness direction.

5. The circulating heat preservation box according to claim 1, characterized in that: The retaining structure includes a retaining body for supporting the heat-insulating structure so that the heat-insulating structure and the side wall are kept in contact with each other, and an installation gap is provided between the retaining body and the heat-insulating structure.

6. The circulating heat preservation box according to claim 5, characterized in that: The retaining body and the heat-insulating structure are arranged at an angle to form the installation gap, and the angle is in the range of 3°-5°.

7. The circulating heat preservation box according to claim 1, characterized in that: The thermal insulation structure includes a plate and a thermal insulation material, and the thermal insulation material is wrapped around the surface of the plate.

8. The circulating heat preservation box according to claim 7, characterized in that: The heat-insulating material is aluminum foil.

9. The circulating heat preservation box according to claim 1, characterized in that: The box cover includes a cover body and a heat-insulating top plate. The cover body is provided with a slot. The heat-insulating top plate is snapped into the slot. The heat-insulating top plate can cover the opening together with the cover body.

10. The circulating heat preservation box according to any one of claims 1 to 9, characterized in that: The box body and the box cover are made of materials with a thermal conductivity coefficient less than or equal to 0.

04.

11. The circulating heat preservation box according to claim 10, characterized in that: The box body and the box cover are made of EPP-VIP composite material or EPP-aerogel composite material.

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