Packaging base

Abstract

The utility model provides a packaging base. The packaging base includes a base body, and also includes an elastic body partially arranged on the base body; the elastic body is arranged on the base body at a supporting point for supporting the packaged product. The packaging base strengthens the local structure of the original base body, especially the local performance with a key supporting function, by means of a base body partially provided with an elastic body. This can ensure that the thickness of the packaging base will not increase significantly on the basis of ensuring the improvement of the supporting, buffering and protective performance of the packaging base. Therefore, this can adapt to the current trend of increasing force per unit area of ​​the packaging base after the large-scale containerization of household appliances while taking into account the packaging size.

Description

Technical Field

[0001] The utility model relates to the field of product transportation packaging, in particular to a packaging base. Background Art

[0002] With the improvement of living standards, large-volume refrigerators are becoming more and more popular among consumers, which has given rise to the development demand for ultra-high, ultra-wide and ultra-deep refrigerators. Considering the logistics cost, land and sea transportation are the main means of transportation, and only air transportation is rarely used. The main means of transportation for refrigerators are various trucks, containers, etc. With the domestic requirements for transportation height restrictions, this contradiction has become more prominent. The transportation for export mainly adopts 40-foot high cabinets, and the height of its internal space is internationally accepted.

[0003] In recent years, the cost of shipping containers for export has skyrocketed, from $2,000 to $12,000-15,000 on site. Even the cost of some freights has exceeded the value of the goods themselves. In particular, large-volume refrigerators urgently need to expand the loading capacity of a single container.

[0004] After the refrigerator is designed, it can only be put on the market if it meets the logistics test standards. Therefore, in this case, the requirements for packaging are getting higher and higher, requiring the packaging volume to be as small as possible, but must meet the requirements of logistics testing. Under such conditions, the development of a new reinforced refrigerator packaging base has become a manifestation of the company's core competitiveness, and a single material can no longer achieve effective protection for the product.

[0005] The invention patent document entitled "Packaging Base of Refrigerator" with the published application number 201310502997.6 has disclosed the base assembly used for packaging refrigerators, etc. At that time, small and medium-sized household appliances were still the main products, and the force per unit area of ​​the base was lower than the current level; and due to market development, the sales channels were mainly concentrated in China, and medium and short-distance land transportation was generally the main method. Logistics transportation has the characteristics of short time, small vibration and stable environment. This means that under the technical level and social conditions at that time, the packaging base with EPS (expanded polystyrene) as the main material can meet the transportation requirements. However, with the development of the domestic home appliance industry and the home appliance market, the emergence of large-volume home appliances has increased the force per unit area of ​​the bottom surface, which means that thicker EPS main materials are needed, and due to the increase in the center of gravity, the base may bear a greater gravity moment during the transportation and shaking process. These two reasons together lead to the packaging base with a single material and structure using EPS as the main material to be easily damaged, making it difficult to achieve effective protection of the product. On the other hand, in the process of expanding into overseas markets, home appliances are mainly transported by sea, which takes a long time and is subject to significant climate changes during transportation, which also has a certain impact on product packaging. Utility Model Content

[0006] In order to solve the problem that the original packaging base with EPS as the single main material is difficult to provide effective transportation protection after the large-scale home appliances such as refrigerators, the utility model provides a packaging base.

[0007] The packaging base of the utility model comprises a base body, and also comprises an elastic body arranged locally on the base body; the elastic body is arranged at a supporting point position on the base body for supporting the packaging product;

[0008] The base body has a protruding portion on one side close to the elastic body, and the elastic body has an inner recess matched with the protruding portion; when the elastic body is combined with the base body, the inner recess is buckled with the protruding portion.

[0009] Preferably, the elastic body is arranged at an edge or a corner of the base body.

[0010] Preferably, along the length direction, the base body has a first bearing area and a second bearing area, the second bearing area is closer to the back plate of the object to be carried than the first bearing area, and the elastic body is arranged on both sides of the second bearing area along the width direction.

[0011] Preferably, a space for evading the elastic body is provided on the base body, and the elastic body is accommodated in the space.

[0012] Preferably, the side surface of the elastic body is coplanar with the side surface of the base body.

[0013] Preferably, the outer side surface of the elastic body is coplanar with the outer side surface of the base body.

[0014] Preferably, the elastomer is a rubber material.

[0015] Preferably, the elastomer is a foam material, and the density level of the elastomer is higher than the density level of the base body.

[0016] Preferably, it also includes a rigid support, which is placed at the bottom of the base body and the elastic body.

[0017] Preferably, it further comprises a protective layer, wherein the protective layer at least comprises a protective film layer covering the bottom surface of the packaging base.

[0018] Preferably, the protective film layer covers the bottom and surrounding sides of the packaging base.

[0019] The utility model strengthens the local structure of the original base body, especially the local performance with key support function, by partially having an elastic base body. This can ensure that the thickness of the packaging base will not increase significantly on the basis of ensuring the improvement of the supporting, buffering and protection performance of the packaging base. Therefore, this can adapt to the current trend of increasing force per unit area of ​​the packaging base after the large container of household appliances, while taking into account the packaging size. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the packaging base of the utility model;

[0021] Figure 2 It is a schematic diagram of the layout of the elastic body of the utility model;

[0022] Figure 3 It is a schematic diagram of the multi-layer structure of the packaging base of the utility model.

[0023] In the figure:

[0024] 11: base body; 12: elastic body; 13: rigid support; 14: protective layer; 111: protrusion; 121: recess; first bearing area: 1A; second bearing area: 1B. DETAILED DESCRIPTION

[0025] The following is a detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. In this specification, the size ratios in the drawings do not represent the actual size ratios, but are only used to reflect the relative position relationship and connection relationship between the components. Components with the same name or the same number represent similar or identical structures and are only for illustrative purposes.

[0026] Figure 1It is a structural schematic diagram of the packaging base of the utility model. It includes a base body 11, and also includes an elastomer 12 arranged at a local position of the base body 11. The base body 11 can generally be a material with a common appearance based on foaming molding commonly used in the prior art, which can be EPS, EPO, EPP and the like foamed and shaped. The base body 11 can also be other foam packaging materials equivalent to the prior art. The elastomer 12 often has a better elastic deformation ability than the base body 11. The material of the elastomer 12 can generally be various types of rubber materials with good elastic properties. In addition, the elastomer does not exclude the use of foaming materials, but usually has better performance than the base body 11. For this, the density of the elastomer 12 can be increased by increasing the density of the foaming material during the foaming and shaping process. The density of the elastomer 12 is higher than the density of the base body 11. When the same type of foaming material is used instead of the traditional rubber material, the density level of the elastomer 12 should be at least one level higher than the density level of the base body 11. Based on the industry standard "QB / T1649-92 Polystyrene Foam Plastic Packaging Material", the density grade of the base body 11 material is generally grade II or grade III, and the corresponding density is 20.0~24.9kg / m 3 25.0~29.9kg / m 3 Therefore, in order to ensure the performance of the elastomer 12, its density level is generally above level III, that is, at least 25.0 kg / m 3 In order to ensure better cushioning and protection performance relative to the base body 11, the density level is preferably level IV (30.0~34.9kg / m 3 ) or values ​​above Level IV not specified in the standard.

[0027] like Figure 2As shown, the elastic body 12 is generally arranged at the supporting point of the packaged product. It can be considered to be arranged at the edge or corner of the base body 11. This is because the supporting position of the household appliance is usually located at the edge or corner of the product. Therefore, when packaging and transporting, the main stress points of the base body 11 are often concentrated on the edges and corners around it. The elastic body 12 is arranged at the edge or corner of the base body 11 to improve the stress of the base body 11 in a targeted manner, so that the load-bearing and buffering components at the main stress points are replaced by the base body 11 with the elastic body 12, which can provide more effective buffering and protection, so that the packaging base can adapt to more stringent transportation conditions and perform well under a larger packing weight. In addition, after the base body 11 is partially replaced by the elastic body 12, the base body 11 can still be developed based on a lower protection level, so that the actual thickness of the base body 11 can be reduced. This is also conducive to reducing the thickness and packing volume of the packaging base, thereby saving more effective packing volume, which may reduce the packing volume of a single product, thereby increasing the effective packing volume of a container or container, and reducing the transportation cost of a single product.

[0028] Back to Figure 1 The elastic body 12 and the base body 11 can be limited in position by a suitable buckling structure. Figure 1 A solution for snap-fit ​​limiting is provided. A space for avoiding the elastomer 12 is provided on the base body 11. When the elastomer 12 is placed in the space, the two are combined into a complete packaging base and placed at the bottom of the product to perform the packaging function. At the preset space of the base body 11, a protrusion 111 can be reserved during molding, and the protrusion 111 extends into the installation space of the elastomer 12. The elastomer 12 has an inner recess 121 that matches the protrusion 111. When the elastomer 12 is combined with the base body 11, the inner recess 121 faces the protrusion 111, and the two are snapped together to limit the elastomer 12 in at least one direction. The base body 11 and the elastomer 12 can be combined only based on the snap-fit ​​structure, and other combinations are not excluded to achieve strict fixation, such as bonding, binding fixation (especially referring to the broad binding fixation of the side edges of the base body 11 and the elastomer 12 by tape, etc.).

[0029] like Figure 1 As shown, along the length direction of the packaging base, the base body 11 has a first bearing area 1A and a second bearing area 1B. When the packaging base carries an object to be carried, the second bearing area 1B is arranged closer to the back plate of the object to be carried than the first bearing area 1A. The elastic body 12 is preferably arranged on both sides of the second bearing area 1B along the width direction, such as Figure 1As shown, the elastic bodies are placed in the avoidance spaces on both sides of the second bearing area along the width direction. The objects to be carried are household appliances such as refrigerators, and the back plate is generally considered to be the back of the product after packaging. The avoidance space in the second bearing area 1B can be partially concave (that is, the bottom surface still has partial material of the base body 11 supporting the elastic body 12), or it can be as follows Figure 1 As shown, it is completely hollowed out. At this time, the bottom of the elastomer 12 directly contacts other surfaces, and the support of the base body 11 is not required. Taking the refrigerator as an example, its important and heavier key components such as the compressor assembly are generally located in the lower rear part. Therefore, the rear part of the refrigerator is heavier, requiring the packaging base to have better support and cushioning performance here, and to ensure that key structural parts such as the compressor floor and the compressor protective cover are not deformed. When the elastomer 12 is coupled to the base body 11, it is preferred that its outer side surface is basically coplanar within the permissible tolerance range, even if the outer side surface of the elastomer is coplanar with the outer side surface of the base body. The peripheral shape of the packaging base is regular, and the relatively standardized shape is conducive to packaging and transportation.

[0030] Alternatively, if Figure 3 As shown, a layer of rigid support 13 can be added at the bottom of the base body 11 and the elastic body 12. The rigid support 13 ensures the overall support performance. The rigid support 13 can be a wooden board. The bottom rigid body can be corrugated board, wood, plastic, composite material board, metal (recyclable) or other materials with a certain plane rigidity. The base body 11 and the elastic body 12 can form a unified whole under the support of the rigid support 13, so after being loaded and stressed, the base body 11 and the elastic body 12 will not be misaligned up and down, thereby avoiding product damage caused by this. At this time, it can be considered to further bond and fix the base body 11 and the elastic body 12 on the rigid support 13.

[0031] Alternatively, if Figure 3 As shown, the packaging base also includes a protective layer 14. When the rigid support 13 is not provided, the protective layer 14 is provided at the bottom of the base body 11 and the elastomer 12. When the rigid support 13 is provided, the protective layer 14 is generally provided at the bottom of the rigid support 13. The protective layer 14 has at least a protective film layer covering the bottom surface, and its function is to prevent moisture and salt spray from invading the packaging base in a high-salt and humid environment, and to prevent the packaging base from being corroded by moisture and losing its buffering and protective properties. It is also one of the necessary settings to prevent high-salt and high-humidity air from invading the product space and corroding the product. The protective film layer preferably covers the bottom and surrounding sides of the packaging base. The material of the protective film layer is generally an existing linear low-density polyethylene (LLDPE) material, polyethylene (PE) material, polyester (PET) material, etc.

[0032] EPS and elastomer are bonded to the rigid material at the bottom by spraying glue or tape, and a waterproof and moisture-proof protective film is added to the bottom, making the product an organic whole. Under the same test conditions, this solution is lower than the height of the EPS body (without elastomer), which can reduce the overall packaging height, and the same container can load more goods.

[0033] Take a 400L large-volume refrigerator as an example. Previously, the number of containers loaded for export was only 48. After packaging improvements and the use of a composite reinforced base, the number of containers loaded increased by 15, and the loading rate increased by 31%. Calculated at a single-box logistics cost of $12,000, the cost of a single product was reduced by $60.

[0034] The above content is only a description of the preferred implementation mode of the utility model, and does not limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements made to the technical solution of the utility model by ordinary technicians in this field should fall within the protection scope determined by the claims of the utility model.

Claims

1. A packaging base, comprising a base body (11), characterized in that: It also includes an elastic body (12) partially disposed on the base body (11); the elastic body (12) is disposed on the base body (11) at a supporting point for supporting the packaged product; The base body (11) has a protruding portion (111) on one side close to the elastic body, and the elastic body (12) has an inner recess (121) adapted to the protruding portion (111); when the elastic body (12) is coupled to the base body (11), the inner recess (121) is engaged with the protruding portion (111).

2. The packaging base according to claim 1, characterized in that: The elastic body (12) is arranged at an edge or a corner of the base body (11).

3. The packaging base according to claim 2, characterized in that: Along the length direction, the base body (11) has a first bearing area (1A) and a second bearing area (1B), the second bearing area (1B) is closer to the back plate of the object to be carried than the first bearing area (1A), and the elastic body (12) is arranged on both sides of the second bearing area (1B) along the width direction.

4. The packaging base according to claim 1, characterized in that: The base body (11) is provided with a space for accommodating the elastic body (12), and the elastic body (12) is accommodated in the space.

5. The packaging base according to claim 1, characterized in that: The outer side surface of the elastic body (12) is coplanar with the outer side surface of the base body (11).

6. The packaging base according to claim 1, characterized in that: The elastic body (12) is made of rubber material.

7. The packaging base according to claim 1, characterized in that: The elastic body (12) is a foaming material, and the density level of the elastic body (12) is higher than the density level of the base body (11).

8. The packaging base according to any one of claims 1 to 7, characterized in that: It also includes a rigid support (13), and the rigid support (13) is placed at the bottom of the base body (11) and the elastic body (12).

9. The packaging base according to any one of claims 1 to 7, characterized in that: It also comprises a protective layer (14), wherein the protective layer (14) at least comprises a protective film layer covering the bottom surface of the packaging base.

10. The packaging base according to claim 9, characterized in that: The protective film layer covers the bottom and peripheral sides of the packaging base.

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