Base pad structure, packaging assembly and refrigerator assembly

Abstract

The utility model provides a bottom mat structure, a packaging assembly and a refrigerator assembly.The bottom mat structure comprises a bottom mat body and a protective film layer, the bottom mat body is provided with a bottom face, a top face and a peripheral face, the bottom face and the top face are oppositely arranged, the peripheral face is connected between the bottom face and the top face, and the top face is used for supporting a household appliance; the joint between the peripheral surface and the bottom surface is in circular arc transition; and the protective film layer covers the bottom surface and at least covers the connecting part. The technical problem that a bottom support made of a hollow plate is prone to fragmentation during packaging is solved.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly relates to a bottom pad structure, a packaging assembly, and a refrigerator assembly. Background Art

[0002] In order to avoid damage to household appliances during transportation or handling, it is common to use packaging boxes to package household appliances, then use multiple longitudinal packing straps to surround the packaging box for one week, and then weld the packing straps to achieve packaging.

[0003] The foam bottom pad is one of the important components of the packaging box, mainly used to support household appliances. To avoid damage to the bottom pad during transportation, a layer of PP hollow board is usually wrapped outside the bottom pad. However, it is found in actual applications that when packing with packing straps, the bending connection between the side wall and the bottom surface of the hollow board is prone to cracking problems. Utility Model Content

[0004] The utility model provides a bottom pad structure, a packaging assembly, and a refrigerator assembly to solve the technical problem that the bottom pad made of hollow board material is prone to cracking during packing.

[0005] To achieve the above object, the bottom pad structure proposed in this application is used to carry household appliances, and the bottom pad structure includes:

[0006] A bottom pad body having a bottom surface and a top surface disposed opposite to each other, and an outer peripheral surface connected between the bottom surface and the top surface, the top surface being used to support the household appliances, and the connection between the outer peripheral surface and the bottom surface being in an arc transition; and,

[0007] A protective film layer, the protective film layer being disposed on the bottom surface and at least covering the connection.

[0008] Optionally, in an embodiment, the radius of the connection is 18 - 20 mm.

[0009] Optionally, in an embodiment, the protective film layer is a plastic film.

[0010] Optionally, in an embodiment, the bottom surface and the outer peripheral surface together form an outer surface, and the outer surface has a plurality of supporting areas, and the supporting areas are configured as areas in contact with the packing straps;

[0011] At least one convex portion is further protruded on the outer surface, the projection of the convex portion on the outer surface intersects with at least one of the supporting areas to support the packing strap, and a concave pit is formed on the inner side surface of the protective film layer corresponding to each convex portion, and a protrusion corresponding to each concave pit is formed on the outer side surface of the protective film layer.

[0012] Optionally, in one embodiment, the at least one convex portion includes one or more of an annular convex portion, a first strip-shaped convex portion, and a second strip-shaped convex portion, wherein the annular convex portion is disposed along the outer peripheral edge of the bottom surface, the first strip-shaped convex portion extends transversely along the bottom surface, and the second strip-shaped convex portion extends longitudinally along the bottom surface.

[0013] Optionally, in one embodiment, the convex portion is integrally formed with the bottom pad body.

[0014] Optionally, in one embodiment, the height by which the convex portion protrudes from the outer surface is 2 to 3 mm.

[0015] Optionally, in one embodiment, at least one groove and at least one through hole are recessed in the bottom surface, and the through hole penetrates through both the top surface and the bottom surface;

[0016] At least one exhaust groove is further recessed in the bottom surface, and any one of the grooves communicates with one of the through holes through the exhaust groove.

[0017] The present application also provides a packaging assembly, including:

[0018] A box body, including a bottom pad structure and a box body structure, the bottom pad structure includes the bottom pad structure as described above, the box body structure defines a receiving cavity with one end open, and the top surface covers the opening; and,

[0019] A packing strap, which is wound circumferentially around the outer wall surface of the box body to lock the box body.

[0020] The present application also provides a refrigerator assembly, including a refrigerator body and the packaging assembly as described above, the refrigerator body is disposed in the receiving cavity and abuts against the bottom pad structure.

[0021] In the bottom pad structure provided by the present application, the connection between the outer peripheral surface and the bottom surface of the bottom pad body is designed as an arc transition surface to disperse local stress and increase the bearing capacity of the connection to force; at the same time, in order to adapt to this arc surface structure and effectively protect the bottom pad body, a flexible protective film layer is used to cover the outside of the bottom pad body, so that an arc surface that can disperse local stress can also be formed at the position of the protective film layer corresponding to the connection, thereby effectively exerting the effect of the arc transition design and avoiding the problem of fragmentation when using a packing strap for packing. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 It is a schematic structural diagram of an embodiment of the bottom pad structure proposed by the present application;

[0024] Figure 2 It is Figure 1 a schematic structural diagram of the bottom pad main body from the first perspective;

[0025] Figure 3 It is Figure 1 a schematic structural diagram of the bottom pad main body from the second perspective;

[0026] Figure 4 It is Figure 1 a schematic structural diagram of the protective film layer;

[0027] Figure 5 It is a bottom view of the first embodiment of the packaging component proposed by the present application;

[0028] Figure 6 It is Figure 5 a partial cross-sectional view of the packaging component shown;

[0029] Figure 7 It is a partial cross-sectional view of the second embodiment of the packaging component proposed by the present application;

[0030] Figure 8 It is a partial cross-sectional view of the third embodiment of the packaging component proposed by the present application;

[0031] Figure 9 It is a bottom view of the fourth embodiment of the packaging component proposed by the present application.

[0032] Explanation of the reference numerals in the drawings:

[0033] Reference numeral Name Reference numeral Name Reference numeral Name 1000 Packaging component 13 Top surface 31 First strip-shaped convex part 100 Bottom pad structure 14 Groove 32 Second strip-shaped convex part 1 Bottom pad body 15 Through hole 33 Annular convex part 11 Outer peripheral surface 16 Exhaust groove 200 Packing strap 12 Bottom surface 2 Protective film layer 121 Connection point 21 Pit

[0034] The realization of the purpose, functional features, and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0036] In the related art, a hollow board is used to prepare a bottom tray to protect the bottom pad made of foam. However, limited by the rigid structure of the hollow board, it is difficult to process it into a curved surface. Therefore, in the bottom tray made of a hollow board, the connection between its side wall and the bottom wall is usually a right angle, and the connection of this structure has a relatively weak bearing capacity for force. We found in actual applications that when using a packing strap to pack a packing box, since household appliances are relatively heavy, the places where the packing strap contacts the bottom tray, especially the connection, need to bear a great deal of force, resulting in the connection being extremely prone to local fragmentation problems. For this reason, the embodiment of the present application provides a bottom pad structure 100 to solve the technical problem that the bottom tray made of a hollow board is prone to fragmentation during packing. The following will be described with reference to the accompanying drawings.

[0037] Please refer to Figure 1 , the bottom pad structure 100 includes a bottom pad main body 1 and a protective film layer 2. The bottom pad main body 1 has a bottom surface 12 and a top surface 13 arranged opposite to each other, and an outer peripheral surface 11 connected between the bottom surface 12 and the top surface 13. The top surface 13 is used to support the household appliance, and the connection 121 between the outer peripheral surface 11 and the bottom surface 12 is in an arc transition; the protective film layer 2 is covered on the bottom surface 12 and at least covers the connection 121.

[0038] In the bottom pad structure 100 provided by the present application, the connection 121 between the outer peripheral surface 11 and the bottom surface 12 of the bottom pad main body 1 is designed as an arc transition surface to disperse local stress and increase the bearing capacity of the connection 121 for force; at the same time, in order to adapt to this arc surface structure and effectively protect the bottom pad main body 1, a flexible protective film layer 2 is used to cover the outside of the bottom pad main body 1, so that the position of the protective film layer 2 corresponding to the connection 121 can also form an arc surface that can disperse local stress, thereby effectively exerting the effect of the arc transition design and avoiding fragmentation problems when using the packing strap 200 for packing.

[0039] Among them, household appliances may include, but are not limited to, refrigeration equipment, clothing cleaning equipment, etc. Among them, the refrigeration equipment may be a refrigerator, an air conditioner, etc.

[0040] Among them, the material of the bottom pad main body 1 may be foam. The foam structure has good cushioning performance and seismic performance, which is beneficial to protecting household appliances. In some embodiments, the material of the bottom pad main body 1 is expanded polystyrene (EPS).

[0041] Among them, the connection part 121 refers to the position where the bottom surface 12 is connected to the outer peripheral surface 11. Specifically, it can be understood as a part of the bottom surface 12 for connecting the outer peripheral surface 11, or a part of the outer peripheral surface 11 for connecting the bottom surface 12. The protective film layer 2 is coated on the connection part 121, which can protect the connection part 121. In some embodiments, the protective film layer 2 can also coat the outer peripheral surface 11 or a part of the outer peripheral surface 11.

[0042] In some embodiments, the radius R of the connection part 121 is 18 - 20 mm; for example, it can be 18 mm, 19 mm, 20 mm, and values between any two of the above. Based on the above embodiments, the present application further optimizes the radian size of the connection part 121, and controls the radius of the connection part 121 within the range of 18 - 20 mm, so as to improve the stress resistance of the connection part 121 as much as possible on the premise of ensuring the stable placement of the bottom pad structure 100.

[0043] In some embodiments, the protective film layer 2 is a plastic film; for example, it can be an OPP film, a PEP film, a PPC film, an HDP film, or a PE film. The plastic film is a flexible film, which can adapt to any shape design of the bottom pad body 1, has a good fitting effect, and has good protective performance, which can protect the bottom pad body 1 and prevent the bottom pad body 1 from being damaged when being bumped or impacted by the outside; moreover, compared with the hollow board, it is cheaper and easier to obtain, which helps to reduce costs; in addition, the plastic film has a low thickness and a small weight, which can reduce the weight of the entire packaging component 1000 and make the household appliance easier to transport.

[0044] The protective film layer 2 can be adhered to the bottom surface 12 by an adhesive method.

[0045] In some embodiments, the bottom surface 12 and the outer peripheral surface 11 together form an outer surface. There are a plurality of supporting areas on the outer surface. The supporting area refers to the area where the packing belt 200 abuts against the outer surface when the packing belt 200 is wound around the outer surface during packing; since the packing belt 200 is closely attached to the outer surface, the supporting area can also be understood as the projection area of the packing belt 200 on the outer surface. As Figure 5 and Figure 9 shown, taking the bottom surface 12 as an example, the packing belt 200 is wound around the bottom surface 12 in a crosswise manner on the bottom surface 12. Correspondingly, the supporting area on the bottom surface 12 is in a cross shape.

[0046] Please refer to Figure 3 and Figure 4, to better support the strapping tape 200 and reduce the probability of breakage at the connection part 121. In some embodiments, at least one convex part is further protruded on the outer surface, and the projection of the convex part on the outer surface intersects with at least one of the supporting areas to support the strapping tape 200. A concave pit 21 is formed on the inner surface of the protective film layer 2 corresponding to each convex part, and a protrusion corresponding to each concave pit 21 is formed on the outer surface of the protective film layer 2. Specifically, the convex part can be provided with one, two, three or more than three. At least one convex part is distributed in the area where there is an intersection with the supporting area. Specifically, the convex part can completely coincide with the supporting area or partially overlap with the supporting area. In this way, when packing, at least a part of the convex part can abut against the strapping tape 200 to play a supporting role for the strapping tape 200. The convex part can play a role in locally strengthening the supporting area, improving the supporting ability of the overlapping area of the convex part and the supporting area for the strapping tape 200, and avoiding damage due to force in the overlapping area. The concave pit 21 corresponds to the convex part, so that the protective film layer 2 can better fit with the bottom pad body 1.

[0047] At least one convex part can be arranged at any position on the outer surface. As Figure 6 shown, the convex part is arranged on the bottom surface 12; or as Figure 7 shown, the convex part is arranged at the connection part 121; or as Figure 8 shown, the convex part is arranged on the outer peripheral surface 11. In some embodiments, when there are multiple convex parts, the multiple convex parts can also be distributed at different positions. For example, at least one convex part is arranged on the bottom surface 12, and the remaining convex parts are arranged on the outer peripheral surface 11, and so on.

[0048] In a specific embodiment, the convex part is arranged on the bottom surface 12 and is arranged close to the outer peripheral edge of the bottom surface 12. In this way, a better effect of locally strengthening the support can be achieved.

[0049] There are various specific implementation forms of the convex part, which can be designed as a linear structure such as a straight line or a curve, or can be designed as an annular structure. In some embodiments, the at least one convex part includes one or more of an annular convex part 33, a first strip-shaped convex part 31, and a second strip-shaped convex part 32. Among them, the annular convex part 33 is arranged along the outer peripheral edge of the bottom surface 12, the first strip-shaped convex part 31 is arranged along the transverse extension of the bottom surface 12, and the second strip-shaped convex part 32 is arranged along the longitudinal extension of the bottom surface 12. Specifically, on the bottom pad body 1, the first strip-shaped convex part 31 can be provided, or the second strip-shaped convex part 32 can be provided, or the annular convex part 33 can be provided; the first strip-shaped convex part 31 and the second strip-shaped convex part 32 can also be provided simultaneously, or the annular convex part 33 and the first strip-shaped convex part 31 can be provided simultaneously, or the annular convex part 33 and the second strip-shaped convex part 32 can be provided simultaneously; the annular convex part 33, the first strip-shaped convex part 31, and the second strip-shaped convex part 32 can also be provided simultaneously. The annular convex part 33 is integrally annular. When specifically arranged, it can be arranged on the bottom surface 12 and along the outer peripheral edge of the bottom surface 12; it can also be arranged around the outer peripheral surface 11, close to the outer peripheral edge of the bottom surface 12. The bottom surface 12 is generally square, having perpendicular longitudinal and transverse directions. For example, Figure 3 As shown in the bottom pad body 1, its bottom surface 12 is rectangular. The length direction of the bottom surface 12 is the transverse direction, and the width direction of the bottom surface 12 is the longitudinal direction. The first strip-shaped convex part 31 can be set as a strip-shaped protrusion extending along the length direction, and the second strip-shaped convex part 32 can be set as a strip-shaped protrusion extending along the width direction. It can be understood that when the bottom surface 12 is square, the longitudinal and transverse directions respectively represent the straight line directions of two intersecting sides on the square. For example, Figure 5 In the embodiment shown, there are two first strip-shaped convex parts 31 and two second strip-shaped convex parts 32 on the bottom pad body 1; as Figure 9 In the embodiment shown, there is one annular convex part 33 on the bottom pad body 1.

[0050] In some embodiments, in some embodiments, the convex part is integrally formed with the bottom pad body 1. In this way, the combination of the convex part and the bottom pad body 1 is more firm, which helps to enhance its strength.

[0051] In some embodiments, the convex part can be made of the same material as the bottom pad body 1, or can be prepared from a foam with a density higher than the material used for the bottom pad body 1.

[0052] In some embodiments, the height of the convex part protruding from the outer surface is 2 - 3 mm; for example, it can be 2 mm, 2.2 mm, 2.5 mm, 2.8 mm, 3 mm, and values between any two of the above. Controlling the height of the convex part within this range can effectively perform local strengthening, and at the same time avoid affecting the damage resistance of the protective film layer 2 and the strength of the convex part due to too large a height difference between the convex part and the bottom pad body 1.

[0053] To save costs and reduce the weight of the bottom pad structure 100, a plurality of groove structures or hole structures may also be provided on the bottom pad body 1. For example, Figure 2 and Figure 3 As shown, at least one groove 14 and at least one through hole 15 are recessed in the bottom surface 12, and the through hole 15 penetrates through both the top surface 13 and the bottom surface 12; the provision of the groove 14 and the through hole 15 can reduce the material used for the bottom pad body 1, and reduce the production cost and weight of the bottom pad structure 100. In practical applications, the through hole 15 can correspond to a flat surface area of the bottom of the household appliance that is a flat surface (for example, the bottom surface 12 of a refrigerator) or a non-open area where the bottom is sealed by a plate. In this way, when the household appliance is placed on the bottom pad body 1, the bottom of the household appliance can block the through hole 15, not only can it obtain the support of the edge of the through hole 15, but also can prevent mosquitoes from entering the box body composed of the bottom pad structure 100 from the through hole 15, and can save materials and reduce weight to the greatest extent.

[0054] However, based on such a bottom pad body 1, when the protective film layer 2 is coated on the bottom surface 12, since the protective film layer 2 will be in close contact with the bottom surface 12 of the bottom pad body 1, this close contact will cause a sealed space to be formed between the protective film layer 2 and the groove wall of the groove 14. And because the protective film layer 2 itself has a certain elasticity, when the box body drops, the pressure in the sealed space increases, which easily causes the protective film layer 2 or the bottom pad body 1 at this place to break. In view of this, in some embodiments, at least one exhaust groove 16 is further recessed in the bottom surface 12, and any one of the grooves 14 communicates with one of the through holes 15 through the exhaust groove 16. In this way, the groove 14 can communicate with the through hole 15 by means of the exhaust groove 16. When the air pressure in the groove 14 increases, the gas can enter the through hole 15 by means of the exhaust groove 16. It can be understood that when the bottom of the household appliance is placed on the bottom pad body 1, although its bottom can cover the through hole 15, it cannot be completely sealed, and there will inevitably be a gap between the bottom and the edge of the through hole 15. Therefore, the gas that enters the through hole 15 can enter the other side of the bottom pad body 1, that is, the inside of the box body, through the gap, thereby reducing the air pressure in the groove 14 and avoiding damage to the protective film layer 2 and the bottom pad body 1. It should be noted that the above-mentioned groove 14 communicating with the through hole 15 through the exhaust groove 16 may mean that the groove 14 and the through hole 15 are directly communicated through an exhaust groove 16, that is, one end of the exhaust groove 16 communicates with the groove 14 and the other end communicates with the through hole 15; it may also mean that the groove 14 and the through hole 15 are indirectly communicated through at least one exhaust groove 16 and at least one groove 14. For example, a groove 14 communicates with another groove 14 through an exhaust groove 16, and then the other groove 14 communicates with the through hole 15 through another exhaust groove 16.

[0055] The present application also provides a packaging assembly 1000. Please refer to Figure 5 , Figure 6 and Figure 9 . The packaging assembly 1000 includes a box body and a packing belt 200. The box body includes a bottom pad structure 100 and a box body structure. The bottom pad body 1 has a bottom surface 12 and a top surface 13 that are oppositely arranged, and an outer peripheral surface 11 connected between the bottom surface 12 and the top surface 13. The top surface 13 is used to support the household appliance, and the connection 121 between the outer peripheral surface 11 and the bottom surface 12 is in an arc transition; the protective film layer 2 is disposed on the bottom surface 12 and at least covers the connection 121. The box body structure defines a receiving cavity with one end open, and the top surface 13 covers the opening; the packing belt 200 is wound circumferentially along the outer wall surface of the box body to lock the box body. For the specific structure of the bottom pad structure 100, refer to the above embodiments. Since this packaging assembly 1000 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0056] In addition, the present application also provides a refrigerator assembly. The refrigerator assembly includes a refrigerator body and the packaging assembly 1000 as described above. The refrigerator body is disposed in the receiving cavity and abuts against the bottom pad structure 100.

[0057] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0058] The above has introduced in detail the first theme provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principles and implementation manners of the present application. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A bottom pad structure for carrying household appliances, characterized in that, The bottom pad structure includes: A bottom pad main body having a bottom surface and a top surface disposed opposite to each other, and an outer peripheral surface connected between the bottom surface and the top surface. The top surface is used to support the household appliance, and the connection between the outer peripheral surface and the bottom surface is in an arc transition; and, A protective film layer, which is disposed on the bottom surface and at least covers the connection.

2. The bottom pad structure according to claim 1, wherein The radius of the connection is 18 to 20 mm.

3. The bottom pad structure according to claim 1, characterized in that, The protective film layer is a plastic film.

4. The bottom pad structure according to claim 1, wherein, The bottom surface and the outer peripheral surface together form an outer surface, and there are a plurality of supporting areas on the outer surface. The supporting areas are configured as areas for abutting against the packing belt; At least one convex portion is further protruded on the outer surface. The projection of the convex portion on the outer surface intersects with at least one of the supporting areas to support the packing belt. A concave pit is formed on the inner side surface of the protective film layer corresponding to each convex portion, and a protrusion corresponding to each concave pit is formed on the outer side surface of the protective film layer.

5. The bottom pad structure according to claim 4, wherein The at least one convex portion includes one or more of an annular convex portion, a first strip-shaped convex portion, and a second strip-shaped convex portion. Among them, the annular convex portion is disposed along the outer peripheral edge of the bottom surface, the first strip-shaped convex portion is disposed along the transverse extension of the bottom surface, and the second strip-shaped convex portion is disposed along the longitudinal extension of the bottom surface.

6. The bottom pad structure according to claim 4, characterized in that The convex portion is integrally formed with the bottom pad main body.

7. The bottom pad structure according to claim 4, characterized in that, The height of the convex portion protruding from the outer surface is 2 to 3 mm.

8. The bottom pad structure according to claim 1, wherein, At least one groove and at least one through hole are recessed on the bottom surface. The through hole penetrates through both the top surface and the bottom surface; At least one exhaust groove is further recessed on the bottom surface. Any one of the grooves is communicated with one of the through holes through the exhaust groove.

9. A packaging component, characterized in that, It includes: A box body, including a bottom pad structure and a box body structure. The bottom pad structure includes the bottom pad structure according to any one of claims 1 to 8. The box body structure defines an accommodating cavity with one end open, and the top surface covers the opening; and, A packing belt, which is wound circumferentially around the outer wall surface of the box body to lock the box body.

10. A refrigerator assembly, characterized in that, It includes a refrigerator body and the packaging assembly according to claim 9. The refrigerator body is disposed in the accommodating cavity and abuts against the bottom pad structure.

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