Built-in buffer structure of corrugated carton

Abstract

The utility model discloses a corrugated carton built-in buffering structure which comprises a carton body and a carton cover, the top end of the carton body is covered with the carton cover in a pressing mode, the corrugated carton built-in buffering structure further comprises an inner buffering mechanism, and the inner buffering mechanism comprises a U-shaped plastic cushion plate, a pair-repairing plastic plate, a rubber bag A, a rubber bag B, a rubber tray and a rubber cushion sheet. The inner buffering mechanism is arranged at the carton body of the corrugated carton component, the inner buffering mechanism at the carton body is combined with polystyrene foam through the expandable rubber bag A and the expandable rubber bag B, the polystyrene foam can be manually injected according to the appearance of a commodity, and the polystyrene foam is supported through a small stick, so that the bags are expanded and attached along with the outline of the commodity for buffering protection; and the plastic supporting disc, the rubber corrugated pipe and the rubber pressing disc at the box cover form a top elastic buffering structure, and a convex column of the rubber pressing disc is firmly bonded with a pipe opening of the corrugated pipe to ensure uniform transmission of buffering force, so that the tops of commodities are prevented from being extruded and damaged.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, and in particular to a built-in cushioning structure for corrugated cardboard boxes. Background Technology

[0002] Corrugated cardboard boxes are a widely used packaging product. They are made from corrugated cardboard through processes such as die-cutting, creasing, stapling, or gluing. Corrugated cardboard boxes are widely used in logistics and transportation, such as the transport packaging of various commodities including electronic products, home appliances, furniture, food, beverages, and daily necessities. They can effectively protect goods from damage during transportation, loading and unloading, and warehousing.

[0003] In existing corrugated cardboard boxes, when packaging goods for transportation, foam boards, bubble wrap, or bubble columns are usually built into the cardboard box to protect the goods inside. However, the protective shape of these cushioning structures inside the cardboard box is usually fixed, which is not convenient to adapt to the shape of the goods for surrounding protection. As a result, the protection and cushioning effect of some more valuable goods is limited. Therefore, we propose a built-in cushioning structure for corrugated cardboard boxes. Utility Model Content

[0004] The main objective of this invention is to provide a built-in cushioning structure for corrugated cardboard boxes. This structure, located within the box body, utilizes expandable rubber bladders A and B combined with expanding foam. Foam can be manually injected according to the product's shape and supported by small wooden sticks, allowing the bladders to expand and conform to the product's contours for cushioning and protection, forming a personalized wrapping layer. This is particularly suitable for the all-around protection of irregularly shaped or valuable goods. The recessed grooves of the plastic tray and the support design of the padding, combined with the bottom support and the elastic clamping of the side bladders, form a three-dimensional support system, effectively dispersing the impact and vibration energy suffered during transport. Furthermore, the plastic support plate, rubber corrugated tubes, and rubber pressure plate at the box lid constitute a top elastic cushioning structure. Six sets of circularly distributed hollow rubber corrugated tubes absorb vertical impact forces through deformation under pressure. The firm adhesion between the protrusions of the rubber pressure plate and the corrugated tube openings ensures even transmission of cushioning force, preventing damage to the top of the product from compression. This effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A corrugated cardboard box with an internal cushioning structure includes a box body and a lid. The lid is pressed onto the top of the box body. The box body also includes an internal cushioning mechanism, comprising a U-shaped plastic pad, a pair of supplementary plastic pads, rubber bags A and B, a rubber tray, and a gasket. The U-shaped plastic pad is inserted into the inner wall of the box body, and a pair of supplementary plastic pads are fitted between the U-shaped sections of the pad. Rubber bags A are adhered to the surface of the supplementary plastic pads away from the box body. Rubber bags B are adhered to the surfaces of the opposite vertical sections of the U-shaped plastic pad, and a rubber tray is adhered to the central section of the U-shaped plastic pad. A gasket is adhered to the inside of the box body below the U-shaped plastic pad. A plastic support plate is adhered to the inner wall of the lid facing the box body, and a rubber pressure plate is adhered to the plastic support plate via a rubber corrugated tube.

[0007] Furthermore, the top of the rubber bag A and the rubber bag B are provided with feeding ports, and the arc-shaped outer surface of the rubber bag A and the rubber bag B are provided with ribs.

[0008] By adopting the above technical solution, the rubber bags A and B with ribs are not easily torn when expanding with foam. Foam can be injected downwards into the feeding ports of rubber bags A and B, so that rubber bags A and B expand and contact with the goods placed on the surface of the rubber tray.

[0009] Furthermore, the U-shaped plastic pad has symmetrically opened L-shaped slots on the opposing vertical plate surfaces for mounting L-shaped clips, and the L-shaped clips are symmetrically fixed on both sides of the plastic pad.

[0010] By adopting the above technical solution, the plastic repair board can be symmetrically clamped at the L-shaped slot of the U-shaped plastic pad using an L-shaped clip, thereby realizing the clamping connection between the plastic repair board and the U-shaped plastic pad.

[0011] Furthermore, the surface of the rubber pressure plate has protruding posts, which are stuck into the opening of the rubber bellows and bonded and fixed.

[0012] By adopting the above technical solution, the rubber pressure plate is firmly bonded to the opening of the rubber corrugated pipe by inserting the protrusion into it.

[0013] Furthermore, the body of the rubber corrugated pipe is circumferentially bonded with six sets of rubber pressure plates and plastic support plates, and the body of the rubber corrugated pipe is a hollow tube.

[0014] By adopting the above technical solution, the rubber pressure plate and the plastic support plate can be firmly bonded at multiple points with a large number of rubber corrugated tubes, so that the rubber pressure plate can press the product under the plastic support plate with the help of the rubber corrugated tubes. When the lid is under force, the rubber pressure plate and the rubber corrugated tubes can buffer and protect the product.

[0015] Furthermore, the adhesive tray is centrally bonded to the upper surface of the central plate of the U-shaped plastic pad, and the surface of the adhesive tray has a recessed groove.

[0016] By adopting the above technical solution, after the plastic tray is bonded to the U-shaped plastic pad, the recessed groove can support the goods.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model incorporates an internal cushioning mechanism within the corrugated cardboard box body. This mechanism, achieved through the combination of expandable rubber bladders A and B with expanding foam, allows for manual injection of expanding foam according to the product's shape. Supported by small wooden sticks, the bladders expand and conform to the product's contours, providing cushioning and protection. This creates a personalized wrapping and cushioning layer, particularly suitable for the all-around protection of irregularly shaped or valuable goods. The recessed grooves on the plastic tray and the support design of the padding, combined with the bottom support and the elastic clamping of the side bladders, form a three-dimensional support system, effectively dispersing the impact and vibration energy experienced during cargo transportation.

[0019] Furthermore, the plastic support plate, rubber corrugated tube, and rubber pressure plate at the lid form a top elastic buffer structure. The six sets of circularly distributed hollow rubber corrugated tubes absorb the vertical impact force through deformation when under pressure. The firm adhesion between the protrusions of the rubber pressure plate and the opening of the corrugated tube ensures that the buffer force is evenly transmitted, preventing the top of the goods from being squeezed and damaged. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the corrugated cardboard box with built-in cushioning structure according to the present invention.

[0021] Figure 2 This is a schematic diagram showing the disassembly of the lid and the body of a corrugated cardboard box with an internal cushioning structure according to this utility model.

[0022] Figure 3 This is an exploded view of a corrugated cardboard box with built-in cushioning structure according to the present invention.

[0023] In the diagram: 1. Carton body; 2. Carton lid; 3. Inner cushioning mechanism; 4. U-shaped plastic pad; 5. L-shaped card slot; 6. L-shaped card strip; 7. Plastic patch; 8. Rubber bag A; 9. Rubber bag B; 10. Plastic tray; 11. Pad sheet; 12. Plastic support tray; 13. Rubber corrugated pipe; 14. Rubber pressure plate. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-3 As shown, a corrugated cardboard box with an internal cushioning structure includes a box body 1 and a box lid 2. The box lid 2 is pressed onto the top of the box body 1. It also includes an internal cushioning mechanism 3, which includes a U-shaped plastic pad 4, a pair of supplementary plastic plates 7, rubber bags A8 and B9, a plastic tray 10, and a padding sheet 11. The U-shaped plastic pad 4 is inserted into the inner wall of the box body 1, and the pair of supplementary plastic plates 7 are fitted between the U-shaped sections of the U-shaped plastic pad 4. A rubber bag A8 is bonded to the surface of the plastic pad 7 away from the carton body 1. A rubber bag B9 is bonded to the surface of the opposite vertical plate of the U-shaped plastic pad 4. A plastic tray 10 is bonded to the central surface of the U-shaped plastic pad 4. A padding sheet 11 is bonded to the inside of the carton body 1 below the U-shaped plastic pad 4. A plastic support plate 12 is bonded to the inner wall of the carton body 1 on the lid 2. A rubber pressure plate 14 is bonded to the plastic support plate 12 through a rubber corrugated tube 13.

[0026] Among them, the top of the rubber bag A8 and the rubber bag B9 are provided with feeding ports, and the arc-shaped outer surface of the rubber bag A8 and the rubber bag B9 are raised with ribs.

[0027] By adopting the above technical solution, the rubber bags A8 and B9 with ribs are not easily torn when expanding with foam. Foam can be injected downwards into the feeding ports of rubber bags A8 and B9, so that rubber bags A8 and B9 expand and contact with the goods placed on the surface of the rubber tray 10.

[0028] The U-shaped plastic pad 4 has L-shaped slots 5 symmetrically opened on the opposite vertical plate surface for mounting L-shaped clips 6, and the L-shaped clips 6 are symmetrically fixed on both sides of the plastic repair plate 7.

[0029] By adopting the above technical solution, the plastic repair plate 7 can be symmetrically clamped at the L-shaped slot 5 of the U-shaped plastic pad 4 with the help of the L-shaped clip 6, thereby realizing the clamping connection between the plastic repair plate 7 and the U-shaped plastic pad 4.

[0030] The surface of the rubber pressure plate 14 has protruding posts, which are stuck into the opening of the rubber corrugated pipe 13 and bonded and fixed.

[0031] By adopting the above technical solution, the rubber pressure plate 14 is firmly bonded to the opening of the rubber corrugated pipe 13 by inserting the protrusion into it.

[0032] The rubber corrugated pipe 13 has six sets of pipe bodies that are circumferentially bonded between the rubber pressure plate 14 and the plastic support plate 12, and the pipe body of the rubber corrugated pipe 13 is a hollow pipe body.

[0033] By adopting the above technical solution, the rubber pressure plate 14 and the plastic support plate 12 can be firmly bonded at multiple points with a large number of rubber corrugated tubes 13, so that the rubber pressure plate 14 can press the goods under the plastic support plate 12 with the help of the rubber corrugated tubes 13. When the lid 2 is subjected to force, the rubber pressure plate 14 and the rubber corrugated tubes 13 can buffer and protect the goods.

[0034] The adhesive tray 10 is centrally bonded to the upper surface of the central plate of the U-shaped plastic pad 4, and the surface of the adhesive tray 10 is recessed with a groove.

[0035] By adopting the above technical solution, after the plastic tray 10 is bonded to the U-shaped plastic pad 4, the recessed groove can support the goods.

[0036] It should be noted that this utility model is an internal cushioning structure for corrugated cardboard boxes. After the internal cushioning mechanism 3 is set at the cardboard body 1, a pressure-bearing cushioning structure consisting of a plastic support plate 12, a rubber corrugated tube 13, and a rubber pressure plate 14 is set at the box cover 2. After the plastic patch 7 of the internal cushioning mechanism 3 is clamped in the L-shaped slot 5 of the U-shaped plastic pad 4 with the L-shaped clip 6, the U-shaped plastic pad 4 can be inserted into the cardboard body 1 with the plastic patch 7 and supported by the rubber soft sheet of the pad 11. Then the goods can be placed normally in the recessed groove of the plastic tray 10. Then, foaming glue is added from the filling port of the rubber bag A8 and the rubber bag B9, and small foaming glue is added manually. Wooden sticks are inserted inside rubber bags A8 and B9 to support the inflatable bodies of the bags, ensuring they contact the surface of the goods. After the expanding foam has cured, the exposed wooden sticks are cut off. At this point, supported by the wooden sticks and the hardened foam, rubber bags A8 and B9 can maintain their position according to the shape of the goods. Then, the lid 2 can be placed over the carton body 1, pressing the rubber pressure plate 14 onto the goods. The rubber corrugated pipe 13 provides elastic cushioning between the rubber pressure plate 14 and the plastic support plate 12. When the carton body 1 encounters external force during transportation, the pressure at the lid 2 allows the rubber... The corrugated pipe 13 and rubber pressure plate 14 deform and buffer, reducing the force on the goods. The four sets of forces on the carton body 1 are supported and buffered by the rubber bladders A8 and B9 filled with foam, which can effectively prevent the goods inside the carton body 1 from being damaged by external forces. When it is necessary to remove the goods, simply lift the lid 2 upwards, then hold the foam at the rubber bladders A8 and B9, and lift the U-shaped plastic pad 4 and the plastic reinforcement plate 7. Then the plastic reinforcement plate 7 can be pulled out from the U-shaped plastic pad 4. When pulling out the plastic reinforcement plate 7, you can manually bend the elastic U-shaped plastic pad 4 so that the rubber bladder A8 at the plastic reinforcement plate 7 can be easily removed. Slightly separate the goods to facilitate the removal of the plastic pad 7, and then the U-shaped plastic pad 4 can be pried open to allow the rubber bag B9 to leave the goods. At this point, the goods can be taken out. The carton body 1 and the carton lid 2 in this application can be made of corrugated cardboard, while the U-shaped plastic pad 4 and the plastic pad 7 can be made of elastic plastic sheets. Meanwhile, the rubber bags A8, B9, plastic tray 10, padding sheet 11, rubber corrugated tube 13 and rubber pressure plate 14 can be made of rubber with cushioning properties. The rubber bags A8 and B9 filled with foam can be manually cleaned or replaced with new U-shaped plastic pad 4 and plastic pad 7.

[0037] It should be noted that this utility model is a built-in cushioning structure for corrugated cardboard boxes. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0038] The above describes and illustrates the basic principles, main features, and practical application of this utility model.

[0039] The advantages of this novel invention are as follows. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A corrugated carton built-in cushioning structure, comprising a carton body (1) and a cover (2), the top end of the carton body (1) is pressed with a cover (2), characterized in that: It also includes an inner buffer mechanism (3), which includes a U-shaped plastic pad (4), a plastic patch (7), a rubber bag A (8), a rubber bag B (9), a plastic tray (10), and a padding sheet (11). The U-shaped plastic pad (4) is inserted into the inner wall of the carton body (1), and the plastic patch (7) is inserted between the U-shaped plates of the U-shaped plastic pad (4). The plastic patch (7) is attached to the surface of the plastic patch (7) away from the carton body (1). A(8), rubber bags B(9) are glued to the surface of the opposite vertical plate of the U-shaped plastic pad (4), and a plastic tray (10) is glued to the surface of the central plate of the U-shaped plastic pad (4). A padding sheet (11) is glued inside the carton body (1) below the U-shaped plastic pad (4). A plastic support plate (12) is glued to the inner wall of the carton body (1) of the carton cover (2), and a rubber pressure plate (14) is glued to the plastic support plate (12) through a rubber corrugated tube (13).

2. The cushioning structure built-in corrugated container according to claim 1, wherein: The top of the rubber bag A (8) and rubber bag B (9) are provided with feeding ports, and the arc-shaped outer surface of the rubber bag A (8) and rubber bag B (9) is raised with ribs.

3. The cushioning structure built-in corrugated container according to claim 1, wherein: The U-shaped plastic pad (4) has symmetrical L-shaped slots (5) for mounting L-shaped clips (6) on the opposite vertical plate surface, and the L-shaped clips (6) are symmetrically fixed on both sides of the plastic pad (7).

4. The cushioning structure built-in corrugated container according to claim 1, wherein: The surface of the rubber pressure plate (14) has protruding posts, which are stuck into the opening of the rubber corrugated pipe (13) and bonded and fixed.

5. The cushioning structure built-in corrugated container according to claim 1, wherein: The rubber corrugated pipe (13) has six sets of pipe bodies that are circumferentially bonded between the rubber pressure plate (14) and the plastic support plate (12), and the pipe body of the rubber corrugated pipe (13) is a hollow pipe body.

6. The cushioning structure built-in corrugated container according to claim 1, wherein: The adhesive tray (10) is centrally bonded to the upper surface of the central plate of the U-shaped plastic pad (4), and the surface of the adhesive tray (10) is recessed with a groove.

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