A carton having internal liner reinforcement

Abstract

The utility model discloses a kind of packing cartons with inner lining reinforcement, comprising: carton assembly, including outer box and the box cover of its top;Reinforcement mechanism, install in the inside of outer box, including inner bottom plate, the inner bottom plate all surrounds outer box inside a week, the top of the inner bottom plate is equipped with the support component of reinforcing support, the top of the inner bottom plate is equipped with the positioning component of positioning support component, the support component and the splicing between positioning component form well-shaped structure, the paperboard in the inner bottom plate, support component and positioning component are all composed of face paper, core paper, interlayer and bottom paper.The utility model is provided with reinforcing component, which provides additional bending strength, effectively resists the deformation of carton, by the clamping connection of first clamping groove and second clamping groove, ensure that support component and positioning component remain stable splicing when stressed, form rigid support system, thereby significantly improve the overall carrying capacity and stability of carton.

Description

Technical Field

[0001] This utility model relates to the field of product packaging technology, and in particular to a packaging carton with reinforced inner lining. Background Technology

[0002] Packaging cartons are containers made of corrugated cardboard. They are lightweight, foldable, easy to print, and environmentally friendly. They are widely used in the transportation, storage, and sales of goods, effectively protecting the contents from damage while facilitating handling and stacking.

[0003] Traditional cardboard boxes typically use simple right-angle folds. When faced with stacking pressure, the load-bearing capacity of this structure is often limited by the physical strength of the cardboard itself and the limited geometric support points. When loaded with heavy items or subjected to the bumps and stacking of long-distance transportation, this traditional folding structure is prone to crushing, deformation or instability at stress concentration points, thus failing to provide reliable protection for the contents. Utility Model Content

[0004] One objective of this invention is to provide a reinforced packaging carton with an inner lining. This invention addresses the problem mentioned in the background that traditional packaging cartons typically employ simple right-angle folds. When faced with stacking pressure, the load-bearing capacity of this structure is often limited by the physical strength of the cardboard itself and the limited geometric support points. When loaded with heavy items or subjected to the bumps and stacking of long-distance transportation, this traditional folding structure is prone to crushing, deformation, or instability at stress concentration points, thus failing to provide reliable protection for the contents.

[0005] A packaging carton with reinforced inner lining according to an embodiment of the present utility model includes:

[0006] Cardboard box assembly, including the outer box and the top lid of the box;

[0007] The reinforcement mechanism, installed inside the outer box, includes an inner bottom plate that surrounds the inside of the outer box. A reinforcement support component is installed on the top of the inner bottom plate, and a positioning component for the positioning support component is installed on the top of the inner bottom plate. The support component and the positioning component are spliced ​​together to form a well-shaped structure. The cardboard in the inner bottom plate, support component, and positioning component is composed of face paper, core paper, interlayer, and bottom paper.

[0008] Preferably, the lid and the outer casing are rotatably connected.

[0009] Preferably, the support assembly includes a first side folding plate that rotates at both ends of the inner bottom plate, a second side folding plate and a fourth side folding plate that are rotatably disposed at both ends of the first side folding plate, a third side folding plate that is rotatably disposed at one end of the second side folding plate, and a first slot provided at the top of both the third side folding plate and the fourth side folding plate.

[0010] Preferably, the first, second, third, and fourth side folding plates form a G-shaped structure after being bent.

[0011] Preferably, the positioning component includes a first clamping plate rotatably mounted on the left and right ends of the inner bottom plate, a second clamping plate rotatably mounted on the top of the first clamping plate, a third clamping plate rotatably mounted on the bottom of the second clamping plate, and a fourth clamping plate rotatably mounted on the right end of the third clamping plate. The second, third, and fourth clamping plates each have a second slot corresponding to a first slot. The first and second clamping plates are located outside the second side folded plate in the support component. The third clamping plate is located between the first, fourth, and third side folded plates in the support component. The second slot in the fourth clamping plate engages with the first slot inside the third and fourth side folded plates in the support component.

[0012] Preferably, the first, second, third, and fourth pressure plates are bent to form a U-shaped structure.

[0013] Preferably, the core paper has two layers, and the middle part of the core paper is composed of multiple triangular reinforcing sheets.

[0014] Preferably, the support and positioning components of the well-shaped structure have filling chambers at their slots, and foam is placed inside the filling chambers.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model, through its reinforced components, effectively avoids the problems of crushing, deformation, or instability of traditional cardboard boxes under stacking pressure due to stress concentration. When reinforcement of the cardboard box interior is required, the first, second, third, and fourth side folding plates of the support component are bent sequentially to form a G-shaped frame structure surrounding the top of the inner bottom plate. Simultaneously, the first, second, third, and fourth pressure plates of the positioning component are bent to form a U-shaped structure. By precisely engaging the second slot in the positioning component with the first slot in the support component, and simultaneously ensuring the third pressure plate... The fixed plate is embedded between the side folds of the support component, firmly splicing the support component and the positioning component into a stable grid-shaped internal skeleton structure. Thus, the stacking pressure applied from the top or the impact force during transportation is effectively distributed and transferred to the entire inner bottom plate through the crisscrossing side folds and the fixed plate. Therefore, this mechanism provides additional bending strength and effectively resists the deformation of the carton. Finally, the engagement of the first slot and the second slot ensures that the support component and the positioning component remain stably spliced ​​when under force, forming a rigid support system, thereby significantly improving the overall load-bearing capacity and stability of the carton.

[0017] 2. This utility model effectively avoids the problem of localized crushing caused by insufficient material strength in traditional cartons through its filling chamber, face paper, interlayer, core paper, and bottom paper. First, the core paper adopts a double-layer structure with multiple triangular reinforcing pieces in the middle. The triangular structure can convert pressure into axial force, disperse the force, and enhance the compressive strength of the core paper. Second, the face paper and bottom paper provide top and bottom protection for the core paper. The interlayer is filled between the face paper and the bottom paper, forming a multi-layer composite structure with the core paper, further improving the overall strength. Finally, the filling chamber at the slots of the support and positioning components is filled with foam. When compressed, the foam absorbs and buffers the impact through deformation. At the same time, the design of the filling chamber prevents the foam from directly contacting the cardboard, avoiding affecting the original structural strength of the cardboard. Thus, when the carton is subjected to heavy pressure or bumps, it can maintain material stability through the multi-layer composite structure and absorb external impact through the buffering effect of the filling chamber, ensuring reliable protection for the contents. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of one side of a packaging carton with reinforced inner lining proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of a packaging carton with reinforced inner lining proposed in this utility model;

[0021] Figure 3 This is a schematic diagram showing the disassembled structure of the reinforcement mechanism for a packaging carton with an inner lining, as proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the unfolded structure of a reinforcing mechanism for a packaging carton with an inner lining, as proposed in this utility model.

[0023] Figure 5 This is a material diagram of a packaging carton with reinforced inner lining proposed in this utility model;

[0024] In the diagram: 1. Carton assembly; 101. Outer box; 102. Box lid; 2. Reinforcing mechanism; 201. Inner bottom plate; 202. First side fold plate; 203. Second side fold plate; 204. Third side fold plate; 205. Fourth side fold plate; 206. First slot; 207. First pressure plate; 208. Second pressure plate; 209. Third pressure plate; 210. Fourth pressure plate; 211. Second slot; 212. Core paper; 213. Filling compartment; 214. Face paper; 215. Interlayer; 216. Bottom paper. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] refer to Figures 1-5 A packaging carton with a reinforced inner lining, comprising:

[0027] Carton assembly 1 includes an outer carton 101 and a top cover 102 thereon;

[0028] The reinforcement mechanism 2 is installed inside the outer casing 101 and includes an inner bottom plate 201. The inner bottom plate 201 surrounds the inside of the outer casing 101, and a reinforcement support component is installed on the top of the inner bottom plate 201.

[0029] The support assembly includes a first side folding plate 202 that rotates at both ends of the inner bottom plate 201. A second side folding plate 203 and a fourth side folding plate 205 are rotatably disposed at both ends of the first side folding plate 202, and a third side folding plate 204 is rotatably disposed at one end of the second side folding plate 203. The top of the third side folding plate 204 and the fourth side folding plate 205 are both provided with a first slot 206. A positioning component of the positioning support assembly is installed on the top of the inner bottom plate 201. The support assembly and the positioning component are spliced ​​together to form a well-shaped structure. The cardboard in the inner bottom plate 201, the support assembly, and the positioning assembly are all composed of face paper 214, core paper 212, interlayer 215, and bottom paper 216.

[0030] First, the core paper 212 adopts a double-layer structure and is composed of multiple triangular reinforcing sheets in the middle. The triangular structure can convert pressure into axial force, disperse the force and enhance the compressive strength of the core paper 212. Second, the face paper 214 and the back paper 216 provide upper and lower protection for the core paper 212. The interlayer 215 is filled between the face paper 214 and the back paper 216, and together with the core paper 212, it forms a multi-layer composite structure, further improving the overall strength.

[0031] The positioning assembly includes a first clamping plate 207 that rotates at both ends of the inner bottom plate 201. A second clamping plate 208 is rotatably disposed on the top of the first clamping plate 207. A third clamping plate 209 is rotatably disposed on the bottom of the second clamping plate 208. A fourth clamping plate 210 is rotatably disposed on the right end of the third clamping plate 209. The second clamping plate 208, the third clamping plate 209 and the fourth clamping plate 210 are all provided with a second slot 211 corresponding to the first slot 206. The first clamping plate 207 and the second clamping plate 208 are located outside the second side folding plate 203 in the support assembly. The third clamping plate 209 is located between the first side folding plate 202, the fourth side folding plate 205 and the third side folding plate 204 in the support assembly. The second slot 211 in the fourth clamping plate 210 is engaged with the first slot 206 inside the third side folding plate 204 and the fourth side folding plate 205 in the support assembly.

[0032] When reinforcement of the carton's interior is required, the first side folding plate 202, the second side folding plate 203, the third side folding plate 204, and the fourth side folding plate 205 of the support assembly are bent sequentially to form a G-shaped frame structure surrounding the top of the inner bottom plate 201. Simultaneously, the first pressure plate 207, the second pressure plate 208, the third pressure plate 209, and the fourth pressure plate 210 of the positioning assembly are bent to form a U-shaped structure. The second slot 211 in the positioning assembly is precisely engaged with the first slot 206 in the support assembly, while the third pressure plate 209 is embedded... Between the side folds of the support assembly, the support assembly and positioning assembly are firmly spliced ​​together to form a stable grid-shaped internal skeleton structure. Thus, the stacking pressure applied from the top or the impact force during transportation is effectively distributed and transferred to the entire inner bottom plate 201 through the crisscrossing side folds and pressure plates. Therefore, this mechanism provides additional bending strength and effectively resists the deformation of the carton. Finally, the engaging connection between the first slot 206 and the second slot 211 ensures that the support assembly and positioning assembly remain stably spliced ​​under force, forming a rigid support system.

[0033] Example 1: The lid 102 and the outer box 101 are rotatable for easy opening and closing. The first side folding plate 202, the second side folding plate 203, the third side folding plate 204 and the fourth side folding plate 205 are bent to form a G-shaped structure. The G-shaped bending design enhances the bending strength of each folding plate. When the carton is under pressure, the G-shaped structure can evenly distribute the pressure, avoid stress concentration, and effectively improve the overall load-bearing capacity and stability of the carton.

[0034] Example 2: The first pressure plate 207, the second pressure plate 208, the third pressure plate 209, and the fourth pressure plate 210 are bent to form a U-shaped structure, achieving rapid positioning and stable splicing. The core paper 212 has two layers, and the middle of the core paper 212 is composed of multiple triangular reinforcing pieces. The triangular structure can convert external pressure into axial force, disperse the stress points, and significantly enhance the compression resistance of the cardboard. The support components and positioning components of the well-shaped structure have filling chambers 213 at their slots. Foam is placed inside the filling chambers 213. When the filling chambers 213 at the slots of the support components and positioning components are filled with foam, the foam absorbs and buffers the impact force through deformation when under pressure. At the same time, the design of the filling chambers 213 prevents the foam from directly contacting the cardboard, avoiding affecting the original structural strength of the cardboard. Thus, when the carton is subjected to heavy pressure or bumps, it can maintain the material stability through the multi-layer composite structure and absorb external impact through the buffering effect of the filling chambers 213, ensuring that the contents are reliably protected.

[0035] Working principle: First, the inner bottom plate 201 of the reinforcing mechanism 2 is placed inside the bottom of the outer box 101 of the carton assembly 1, and it is arranged around the inner wall of the outer box 101. The support assembly is bent, and the first side folding plate 202, which is rotatably connected to the front and rear ends of the inner bottom plate 201, is bent upward. Then, the second side folding plate 203 and the fourth side folding plate 205, which are rotatably connected to the ends of the first side folding plate 202, are bent inward. Next, the third side folding plate 204, which is rotatably connected to one end of the second side folding plate 203, is folded to the right. This process forms a G-shaped frame structure around the top of the inner bottom plate 201. At this time, the first slots 206 on the top of the third side folding plate 204 and the fourth side folding plate 205 face upward. The positioning component involves folding the first clamping plate 207, which is rotatably connected to the left and right ends of the inner bottom plate 201, upwards. Then, the second clamping plate 208, rotatably connected to the top of the first clamping plate 207, is folded downwards. Next, the third clamping plate 209, rotatably connected to the bottom of the second clamping plate 208, is bent to the right. Finally, the fourth clamping plate 210, rotatably connected to the right end of the third clamping plate 209, is bent upwards. This process forms a U-shaped structure. The bent positioning component is then spliced ​​with the support component, so that the first clamping plate 207 and the second clamping plate 208 are located outside the second side folding plate 203 of the support component. The third clamping plate 209 is then embedded into the first side folding plate 202 and the fourth side folding plate 203 of the support component. The gap between plate 205 and the third side folding plate 204 allows the second slot 211 on the fourth pressure plate 210 of the positioning component to be precisely aligned and engaged with the first slot 206 on the top of the third side folding plate 204 and the fourth side folding plate 205 of the support component. The support component and the positioning component are firmly spliced ​​together by this engagement and embedding method, forming a stable grid-shaped internal skeleton structure. Foam and other cushioning materials are placed inside the filling compartments 213 that are naturally formed between the longitudinal and transverse support beams of the grid-shaped skeleton structure. The items that need to be protected are placed inside the reinforced carton, and the lid 102, which is rotatably set on the top of the outer carton 101, is closed. When the carton is subjected to the pressure of the top stacking or the impact force during transportation, the force is first applied to the grid. The top edge folding plate and pressure plate of the frame effectively distribute and transfer force to the entire inner bottom plate 201 through its crisscross structure. The inner bottom plate 201 then evenly transfers the load to the bottom surface and side wall bottom of the outer box 101. The multi-layer composite paperboard consisting of face paper 214, double-layer core paper 212, interlayer 215 and bottom paper 216, which constitutes the inner bottom plate 201, support components and positioning components, provides basic strength. Among them, the multiple triangular reinforcing pieces in the middle of the core paper 212 significantly enhance the compression resistance and convert the pressure into axial force to distribute the force. At the same time, the foam in the filling compartment 213 absorbs and buffers the impact energy through deformation. Ultimately, the structure effectively resists deformation, disperses stress and protects the internal items.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A packaging carton with a reinforced inner lining, characterized in that, include: A carton assembly (1) includes an outer carton (101) and a carton lid (102) on top of it; The reinforcement mechanism (2) is installed inside the outer box (101) and includes an inner bottom plate (201). The inner bottom plate (201) surrounds the inside of the outer box (101). A reinforcement support component is installed on the top of the inner bottom plate (201). A positioning component of the positioning support component is installed on the top of the inner bottom plate (201). The support component and the positioning component are spliced ​​together to form a well-shaped structure. The cardboard in the inner bottom plate (201), the support component and the positioning component are all composed of face paper (214), core paper (212), interlayer (215) and bottom paper (216).

2. A packaging carton with reinforced inner lining according to claim 1, characterized in that, The lid (102) and the outer box (101) are rotatably connected.

3. A packaging carton with reinforced inner lining according to claim 1, characterized in that, The support assembly includes a first side folding plate (202) that rotates at both ends of the inner bottom plate (201). A second side folding plate (203) and a fourth side folding plate (205) are rotatably provided at both ends of the first side folding plate (202). A third side folding plate (204) is rotatably provided at one end of the second side folding plate (203). A first slot (206) is provided on the top of both the third side folding plate (204) and the fourth side folding plate (205).

4. A packaging carton with reinforced inner lining according to claim 3, characterized in that, The first side fold plate (202), the second side fold plate (203), the third side fold plate (204) and the fourth side fold plate (205) are bent to form a G-shaped structure.

5. A packaging carton with reinforced inner lining according to claim 1, characterized in that, The positioning assembly includes a first clamping plate (207) rotatably mounted on the left and right ends of the inner bottom plate (201). A second clamping plate (208) is rotatably mounted on the top of the first clamping plate (207). A third clamping plate (209) is rotatably mounted on the bottom of the second clamping plate (208). A fourth clamping plate (210) is rotatably mounted on the right end of the third clamping plate (209). The interiors of the second clamping plate (208), the third clamping plate (209), and the fourth clamping plate (210) are all provided with slots corresponding to the first slot (206). The corresponding second slot (211) is located outside the second side folding plate (203) in the support assembly. The third slot (209) is located between the first side folding plate (202), the fourth side folding plate (205) and the third side folding plate (204) in the support assembly. The second slot (211) in the fourth slot (210) is engaged with the first slot (206) inside the third side folding plate (204) and the fourth side folding plate (205) in the support assembly.

6. A packaging carton with reinforced inner lining according to claim 5, characterized in that, The first pressure plate (207), the second pressure plate (208), the third pressure plate (209) and the fourth pressure plate (210) are bent to form a U-shaped structure.

7. A packaging carton with reinforced inner lining according to claim 1, characterized in that, The core paper (212) has two layers, and the middle part of the core paper (212) is composed of multiple triangular reinforcing sheets.

8. A packaging carton with reinforced inner lining according to claim 1, characterized in that, The support and positioning components of the well-shaped structure have a filling chamber (213) at the slot, and foam is placed inside the filling chamber (213).

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