Terraced field laminated packaging structure

Abstract

The utility model provides a terrace laminated packaging structure which comprises a cover plate formed by cutting a corrugated paperboard, a first assembly layer, a second assembly layer, a third assembly layer, a fourth assembly layer, a fifth assembly layer and a sealing layer, and the first assembly layer is cut to form a hollow part for containing the second assembly layer; the second assembly layer is cut to form a hollow part for accommodating the third assembly layer; the third assembly layer is cut to form a hollow part for accommodating the fourth assembly layer; the fourth assembly layer is cut to form a hollow part for accommodating the fifth assembly layer; a first lower boss is formed on the inner side wall of the hollow part of the first assembly layer; the sealing layer is attached to the upper surface of the fifth assembly layer; the cover plate is connected with one side of the outer side face of the first assembly layer. The corrugated paper box is formed by stacking five groups of independent corrugated paper boards, can be flattened for storage, can be stretched to enlarge the volume, is simple in structure, conforms to the environment-friendly concept, and is interesting in structure.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and in particular to a terraced layered packaging structure. Background Technology

[0002] Chinese Patent Publication No. CN209112658U, published on July 16, 2019, discloses a multi-layered stacked storage box. The box includes a hollow body with a cover plate rotatably connected to its upper sidewall via a pivot. The box contains four horizontally arranged shelves: a first shelf, a second shelf, a third shelf, and a fourth shelf, arranged sequentially from top to bottom. The lower sidewalls of the first, second, and third shelves have downward-facing storage slots, which decrease in size from top to bottom. Symmetrical mounting slots with opposing openings are provided on the two sidewalls of each storage slot, and a snap-fit ​​device is installed in each mounting slot. This multi-layered stacked storage box allows for the categorization and placement of various items, reducing the workload for the recipient. The existing technology has the following drawbacks: to achieve the stretching function, it uses components such as pull rings, buckles, latches, springs, slide rods, locking teeth, and wedge blocks, resulting in an overly complex overall structure, high assembly difficulty, and a failure to meet environmental protection standards. It also leads to a high defect rate and high manufacturing costs. Therefore, improvements are urgently needed. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a terraced layered packaging structure, which is formed by stacking five sets of independent corrugated cardboard. It can be flattened for storage and also stretched to expand the volume. The structure is simple, conforms to the concept of environmental protection, and has an interesting structure.

[0004] This utility model provides a terraced layered packaging structure, including a cover plate cut from corrugated cardboard, a first assembly layer, a second assembly layer, a third assembly layer, a fourth assembly layer, a fifth assembly layer, and a sealing layer. The first assembly layer is cut to form a hollow portion for receiving the second assembly layer; the second assembly layer is cut to form a hollow portion for receiving the third assembly layer; the third assembly layer is cut to form a hollow portion for receiving the fourth assembly layer; the fourth assembly layer is cut to form a hollow portion for receiving the fifth assembly layer; a first lower protrusion is formed on the inner sidewall of the hollow portion of the first assembly layer; the sealing layer is attached to the upper surface of the fifth assembly layer; the cover plate is connected to one side of the outer side of the first assembly layer.

[0005] The upper outer surface of the second assembly layer, the third assembly layer, the fourth assembly layer, and the fifth assembly layer are all formed with upper bosses, and the lower inner sidewall of the second assembly layer, the third assembly layer, and the fourth assembly layer are all formed with lower bosses.

[0006] When in a flattened state, the second assembly layer, the third assembly layer, the fourth assembly layer, and the fifth assembly layer are stacked and stored in the corresponding hollowed-out parts from the outside to the inside, and the cover plate is placed on the upper surface of the first assembly layer.

[0007] When in a stretched state, the second, third, fourth, and fifth assembly layers are stretched downwards to form a terraced stacked storage cavity, and the product is placed in the terraced stacked storage cavity accordingly.

[0008] Preferably, the shape of the cover plate corresponds to the shape of the first assembly layer.

[0009] Preferably, a tongue is provided on one side edge of the cover plate, and a slot for inserting the tongue is provided on the outer side of the first assembly layer.

[0010] Preferably, the thicknesses of the first assembly layer (14), the second assembly layer (16), the third assembly layer (17), and the fourth assembly layer (18) are equal, and the thickness of the fifth assembly layer (19) is less than that of the first assembly layer (14).

[0011] The beneficial effects of this utility model are as follows: The cover plate, first assembly layer, second assembly layer, third assembly layer, fourth assembly layer, fifth assembly layer, and sealing layer are all made of corrugated cardboard, which is in line with the concept of environmental protection. When it is flat, the second assembly layer, third assembly layer, fourth assembly layer, and fifth assembly layer are stacked and stored in the corresponding hollow parts from the outside to the inside. They can be stacked to save storage space and thus save transportation costs. When it is stretched, the second assembly layer, third assembly layer, fourth assembly layer, and fifth assembly layer are stretched downward to form a terraced stacked storage cavity. The product is placed in the terraced stacked storage cavity to achieve adaptive adjustment of volume. The structure is simple, the operation is convenient, and it is also interesting. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the object in a stretched state.

[0013] Figure 2 This is a schematic diagram of the flattened state.

[0014] Figure 3 This is a schematic diagram showing the first assembly layer, second assembly layer, third assembly layer, fourth assembly layer, and fifth assembly layer in a three-dimensional exploded state.

[0015] The attached figures are labeled as follows: cover plate 12, first assembly layer 14, second assembly layer 16, third assembly layer 17, fourth assembly layer 18, fifth assembly layer 19, sealing layer 21, tongue 13, terraced storage cavity 11, first lower boss 15, upper boss 20, and second lower boss 22. Detailed Implementation

[0016] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with specific embodiments and accompanying drawings.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Please refer to Figure 1-3 As shown, this utility model provides a terraced layered packaging structure, including a cover plate 12 cut from corrugated cardboard, a first assembly layer 14, a second assembly layer 16, a third assembly layer 17, a fourth assembly layer 18, a fifth assembly layer 19, and a sealing layer 21. The first assembly layer 14, the second assembly layer 16, the third assembly layer 17, and the fourth assembly layer 18 have equal thicknesses, while the fifth assembly layer 19 has a thickness less than that of the first assembly layer 14. The first assembly layer 14 is cut to form a hollow portion for housing the second assembly layer 16; the second assembly layer 16 is cut to form a hollow portion for housing the third assembly layer 17; the third assembly layer 17 is cut to form a hollow portion for housing the fourth assembly layer 18; and the fourth assembly layer 18 is cut to form a hollow portion for housing the fifth assembly layer 19. A first lower boss 15 is formed on the inner side wall of the hollow portion of the first assembly layer 14; the sealing layer 21 is attached to the upper surface of the fifth assembly layer 19; and the cover plate 12 is connected to one side of the outer side of the first assembly layer 14.

[0019] The upper outer surface of the second assembly layer 16, the third assembly layer 17, the fourth assembly layer 18, and the fifth assembly layer 19 are all formed with upper bosses 20, and the lower inner sidewall of the second assembly layer 16, the third assembly layer 17, and the fourth assembly layer 18 are all formed with lower bosses 22.

[0020] Reference Figure 2 As shown, when in a flattened state, the second assembly layer 16, the third assembly layer 17, the fourth assembly layer 18, and the fifth assembly layer 19 are sequentially stored in the corresponding hollowed-out parts from the outside to the inside, and the cover plate 12 is placed on the upper surface of the first assembly layer 14.

[0021] Reference Figure 1As shown, when in a stretched state, the second assembly layer 16, the third assembly layer 17, the fourth assembly layer 18, and the fifth assembly layer 19 are stretched downwards to form a terraced stacked storage cavity 11, and the product is placed accordingly inside the terraced stacked storage cavity 11. At this time, the structural relationship of this embodiment is as follows: the upper boss 20 of the second assembly layer 16 is in contact with the first lower boss 15 of the first assembly layer 14; the second lower boss 22 of the second assembly layer 16 is in contact with the upper boss 20 of the third assembly layer 17; the second lower boss 22 of the third assembly layer 17 is in contact with the upper boss 20 of the fourth assembly layer 18; and the second lower boss 22 of the fourth assembly layer 18 is in contact with the upper boss 20 of the fifth assembly layer 19.

[0022] The shape of the cover plate 12 corresponds to the shape of the first assembly layer 14. In actual use, the cover plate 12, the first assembly layer 14, the second assembly layer 16, the third assembly layer 17, the fourth assembly layer 18, and the fifth assembly layer 19 can be cut into corresponding shapes according to the contents of the product to be packaged. For example, when packaging grains or specialty agricultural products, they can be cut into irregular stump-shaped sections.

[0023] A tongue 13 is provided on one edge of the cover plate 12, and a slot for inserting the tongue 13 is provided on the outer side of the first assembly layer 14. The tongue 13 and the slot are engaged to seal the terraced storage cavity 11.

[0024] In this embodiment, the cover plate, first assembly layer, second assembly layer, third assembly layer, fourth assembly layer, fifth assembly layer, and sealing layer, all cut from corrugated cardboard, form an all-cardboard structure that conforms to environmental protection principles. When flattened, the second, third, fourth, and fifth assembly layers are stacked sequentially from the outside in within their corresponding perforated sections, allowing for stacking and saving storage space, thereby reducing transportation costs. When stretched, the second, third, fourth, and fifth assembly layers are stretched downwards to form a terraced stacked storage cavity, into which the product is placed, enabling adaptive volume adjustment. The structure is simple, easy to operate, and also has an element of fun.

[0025] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A terraced, laminated packaging structure, characterized by: The assembly includes a cover plate (12) cut from corrugated cardboard, a first assembly layer (14), a second assembly layer (16), a third assembly layer (17), a fourth assembly layer (18), a fifth assembly layer (19), and a sealing layer (21). The first assembly layer (14) is cut to form a hollow portion that accommodates the second assembly layer (16); the second assembly layer (16) is cut to form a hollow portion that accommodates the third assembly layer (17); the third assembly layer (17) is cut to form a hollow portion that accommodates the fourth assembly layer (18); the fourth assembly layer (18) is cut to form a hollow portion that accommodates the fifth assembly layer (19); a first lower boss (15) is formed on the inner side wall of the hollow portion of the first assembly layer (14); the sealing layer (21) is attached to the upper surface of the fifth assembly layer (19); and the cover plate (12) is connected to one side of the outer side of the first assembly layer (14). The upper part of the outer surface of the second assembly layer (16), the third assembly layer (17), the fourth assembly layer (18), and the fifth assembly layer (19) are all formed with an upper boss (20), and the lower part of the inner sidewall of the second assembly layer (16), the third assembly layer (17), and the fourth assembly layer (18) are all formed with a second lower boss (22). When in a flattened state, the second assembly layer (16), the third assembly layer (17), the fourth assembly layer (18), and the fifth assembly layer (19) are stacked and stored in the corresponding hollowed-out parts from the outside to the inside, and the cover plate (12) is placed on the upper surface of the first assembly layer (14). When in a stretched state, the second assembly layer (16), the third assembly layer (17), the fourth assembly layer (18), and the fifth assembly layer (19) are stretched downward to form a terraced stacked storage cavity (11), and the product is placed in the terraced stacked storage cavity (11).

2. The terraced laminated packaging structure according to claim 1, characterized in that: The shape of the cover plate (12) corresponds to the shape of the first assembly layer (14).

3. The terraced layered packaging structure according to claim 1, characterized in that: The cover plate (12) has a tongue (13) on one side edge, and the outer side of the first assembly layer (14) has a slot for inserting the tongue (13).

4. The terraced laminated packaging structure according to claim 1, characterized in that: The first assembly layer (14), the second assembly layer (16), the third assembly layer (17), and the fourth assembly layer (18) have the same thickness, and the fifth assembly layer (19) has a smaller thickness than the first assembly layer (14).

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