Corner packing structure for paper plastic

By combining inner and outer paper cards, the problem of insufficient strength of paper-plastic materials is solved, resulting in improved strength, enhanced environmental friendliness, and simplified production. This also prevents product scratches and improves transportation safety and logistics efficiency.

CN223851086UActive Publication Date: 2026-01-30SUZHOU MYS ENVIRONMENTAL PROTECTION & TECH CO LTD
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Patent Information

Application Number
CN202520115286.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-01-30
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing paper-plastic materials are not strong enough for transport cushioning packaging, making it difficult to guarantee the safe transport of products, and traditional reinforcement methods increase production complexity and cost.

Method used

It adopts a combination structure of inner and outer paper cards. The inner paper card is formed by folding multiple cards to form a flat platform, clearance groove and buffer structure. The outer paper card is connected to the inner paper card through baffles and abutment plates to enhance the overall strength, and the anti-abrasion plate contacts the product to prevent abrasion.

Benefits of technology

It improves the strength and environmental friendliness of paper-plastic parts, simplifies the production process, reduces costs, prevents product scratches, and enhances logistics efficiency and product safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging paper, in particular to a paper-plastic corner packing structure which comprises an inner paper card and an outer paper card. The inner paper card is formed by folding a plurality of inner cards which are connected in sequence; a notch is formed in the bottom of the inner clamping sheet; a flat surface is arranged at the top of the inner clamping sheet; the outer paper card comprises a first baffle, a second baffle, a bearing plate and an abutting plate. The bearing plate is arranged between the first baffle and the second baffle; the bearing plate abuts against the bottom wall of the receding groove. The first baffle and the second baffle abut against the outer walls of the two sides of the inner paper card respectively. The abutting plate abuts against the outer wall of the buffering structure. The inner paper card and the outer paper card which are combined are installed in the paper-plastic part through the receding groove and the flat face, so that the strength of the paper-plastic part can be effectively enhanced, the paper-plastic part is environmentally friendly and reliable, the abrasion-proof plate of the abutting plate can directly make contact with a product, the supporting effect is achieved, and abrasion of the product is prevented.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing paper, specifically relates to a paper plastic corner plug packaging structure. BACKGROUND

[0002] With the continuous improvement of public environmental awareness, consumers are increasingly inclined to choose environmentally friendly products for commodity packaging materials. Traditional non-environmental materials such as plastic foam are gradually being eliminated by the market due to their difficulty in degradation and recycling. Paper plastic, as a new environmentally friendly material, has been increasingly widely used in the field of transportation cushion packaging. However, due to cost control considerations, the material strength of some paper plastic products on the market is not ideal, which cannot fully guarantee the safe transportation of the packaged products, which poses a significant challenge to product protection.

[0003] In order to improve the strength of paper plastic materials, the commonly used method at present is to add an extra layer of paper plastic to increase the thickness at the part where the paper plastic structure is relatively weak. Although this method can improve the overall strength to some extent, it also increases the complexity and cost of the production process, and may affect the appearance design of the final product. In addition, this simple superposition method does not fundamentally solve the strength problem of the material itself. SUMMARY

[0004] The utility model aims at the above -mentioned insufficient of prior art, provides a paper plastic corner plug packaging structure.

[0005] The utility model discloses a paper plastic corner plug packaging structure, including inner paper card and outer paper card, the inner paper card includes a plurality of inner card piece folding and connecting in proper order, one end of the inner card piece is connected with the one end of adjacent inner card piece, the other end of the inner card piece is connected with the other end of adjacent inner card piece, the bottom of inner card piece is equipped with the notch, the top of inner card piece is equipped with the flat surface,

[0006] The flat surface of a plurality of inner card pieces is folded and forms a flat table at the top of the inner paper card, the notch of a plurality of inner card pieces is folded and forms a gap slot at the bottom of the inner paper card, the other end of a plurality of inner card pieces is folded and forms a buffer structure at the front of the inner paper card,

[0007] The outer paper card includes first baffle, second baffle, receiving plate and abutting plate, the receiving plate is located between the first baffle and the second baffle, the bottom wall of the gap slot is abutted with the receiving plate, the first baffle and the second baffle are respectively abutted with the two side outer walls of the inner paper card, and the abutting plate is abutted with the outer wall of the buffer structure.

[0008] The utility model further sets up, one end of the inner card piece is equipped with half threading.

[0009] The utility model further sets up, another end of inner card is equipped with positive pressure line.

[0010] The utility model further sets up, the abutting board includes the anti-abrasion flower board, one side of anti-abrasive flower board is equipped with first connecting plate, another side of anti-abrasive flower board is equipped with second connecting plate, first connecting plate and second connecting plate are respectively with the both sides outer wall of inner paper card abut, first fold line is equipped between anti-abrasive flower board and first connecting plate and between anti-abrasive flower board and second connecting plate.

[0011] The utility model further sets up, the top of anti-abrasive flower board is equipped with first protection board, the bottom of anti-abrasive flower board is equipped with second protection board, first protection board and second protection board are respectively with the outer wall of buffer structure abut, second fold line is equipped between anti-abrasive flower board and first protection board and between anti-abrasive flower board and second protection board.

[0012] The utility model further sets up, the top of first baffle is equipped with first lock plate, the top of second baffle is equipped with second lock plate, first lock plate and second lock plate are respectively with the outer wall of flat surface abut, reverse pressure line is equipped between first lock plate and first baffle and between second lock plate and second baffle.

[0013] The utility model further sets up, first lock plate is equipped with first lock slot, second lock plate is equipped with second lock slot with first lock slot cooperation.

[0014] The utility model further sets up, first protection board and second protection board are respectively with the inside of anti-abrasive flower board abut, the outside of anti-abrasive flower board is equipped with anti-abrasive flower surface.

[0015] The utility model further sets up, inner paper card is BC type corrugated paper.

[0016] The utility model further sets up, outer paper card is E type corrugated paper.

[0017] The utility model has the advantages that: the utility model installs the inner paper card and the outer paper card in the paper plastic piece through the accommodation groove and the flat surface, thereby effectively strengthening the strength of the paper plastic piece, being environment-friendly and reliable, and the anti-abrasive flower board of the abutting board can directly contact the product, plays a supporting role and prevents the product from being abraded. BRIEF DESCRIPTION OF DRAWINGS

[0018] The embodiments in the drawings do not constitute any limitation on the utility model, and other drawings can be obtained by the following drawings without creative labor for ordinary skilled in the art.

[0019] Figure 1It is the structure schematic diagram of the inner paper card before folding of the utility model;

[0020] Figure 2 It is the structure schematic diagram of the inner paper card after folding of the utility model;

[0021] Figure 3 It is the structure schematic diagram of the outer paper card before folding of the utility model;

[0022] Figure 4 It is the structure schematic diagram of the outer paper card after folding of the utility model;

[0023] Figure 5 It is the structure schematic diagram when the inner card and the outer card are assembled of the utility model;

[0024] Figure 6 It is the structure schematic diagram after folding of the first connecting plate and the second connecting plate of the utility model;

[0025] Figure 7 It is the structure schematic diagram after folding of the first locking plate and the second locking plate of the utility model;

[0026] Figure 8 It is the structure schematic diagram of cooperation with the paper plastic piece of the utility model;

[0027] Among them: 1, inner card; 11, notch; 12, flat surface; 2, inner paper card; 21, flat table; 22, let place groove; 23, buffer structure; 3, bearing plate; 31, first baffle; 32, second baffle; 41, half threading; 42, positive pressure line; 5, wear-resistant flower plate; 51, first connecting plate; 52, second connecting plate; 53, first folding line; 61, first protective plate; 62, second protective plate; 63, second folding line; 71, first locking plate; 72, second locking plate; 73, counter-pressure line; 74, first lock slot; 75, second lock slot; 8, wear-resistant flower surface; 9, outer paper card. DETAILED DESCRIPTION

[0028] The utility model is further described in connection with the following embodiments.

[0029] From Figures 1 to 8 It can be known that the paper-plastic corner packing structure provided by the embodiment comprises an inner paper card 2 and an outer paper card 9; the inner paper card 2 comprises a plurality of inner cards 1 connected in sequence and folded; one end of the inner card 1 is connected with one end of an adjacent inner card 1; the other end of the inner card 1 is connected with the other end of an adjacent inner card 1; the bottom of the inner card 1 is provided with a notch 11; the top of the inner card 1 is provided with a flat surface 12;

[0030] The flat surface 12 of the plurality of inner cards 1 is folded to form a flat table 21 on the top of the inner paper card 2; the notch 11 of the plurality of inner cards 1 is folded to form a let slot 22 on the bottom of the inner paper card 2; the other end of the plurality of inner cards 1 is folded to form a buffer structure 23 on the front of the inner paper card 2;

[0031] The outer paper card 9 comprises a first baffle 31, a second baffle 32, a receiving plate 3 and an abutting plate; the receiving plate 3 is arranged between the first baffle 31 and the second baffle 32; the receiving plate 3 abuts against the bottom wall of the let slot 22; the first baffle 31 and the second baffle 32 respectively abut against the two side outer walls of the inner paper card 2; and the abutting plate abuts against the outer wall of the buffer structure 23.

[0032] Specifically, the plug corner packaging structure for paper plastic in the embodiment is composed of the inner paper card 2 and the outer paper card 9, and can be separately assembled to save labor and facilitate operation and improve assembly efficiency; when assembling, the plurality of sequentially connected inner cards 1 are sequentially folded to form a state as shown in Figure 2 At this time, the folded inner paper card 2 forms the flat table 21, the let slot 22 and the buffer structure 23; then the outer paper card 9 is installed with the inner paper card 2, wherein the receiving plate 3 abuts against the bottom wall of the let slot 22, the first baffle 31 and the second baffle 32 respectively abut against the two side outer walls of the inner paper card 2, and the abutting plate abuts against the outer wall of the buffer structure 23, so that the inner paper card 2 and the outer paper card 9 are connected stably to form a state as shown in Figure 5 .

[0033] The combined inner paper card 2 and the outer paper card 9 are installed in the paper plastic part through the let slot 22 and the flat surface 12, so that the strength of the paper plastic part can be effectively enhanced, and the abutting plate is directly in contact with the product to play a supporting role and prevent the product from being scratched.

[0034] The one end of the inner card 1 is provided with a half threading 41 in the plug corner packaging structure for paper plastic in the embodiment. Specifically, the above-mentioned arrangement facilitates the reverse folding between the one end of the inner card 1 and the one end of the inner card 1.

[0035] The other end of the inner card 1 is provided with a positive line 42 in the plug corner packaging structure for paper plastic in the embodiment. Through the above-mentioned arrangement, after the reverse folding between the other end of the inner card 1 and the other end of the inner card 1, the buffer structure 23 is formed on the front of the inner paper card 2.

[0036] In addition, the inner paper card 2 of the embodiment adopts the operation method of combining positive folding of the positive line 42 and reverse folding of the half threading 41, and is connected as a whole, which facilitates the stacking and improves the efficiency of logistics.

[0037] The paper-plastic corner plug packaging structure, the abutting plate comprises an anti-abrasion plate 5; one side of the anti-abrasion plate 5 is provided with a first connecting plate 51; the other side of the anti-abrasion plate 5 is provided with a second connecting plate 52; the first connecting plate 51 and the second connecting plate 52 are respectively abutted against the outer walls of the two sides of the inner paper card 2; and the first fold line 53 is arranged between the anti-abrasion plate 5 and the first connecting plate 51 and between the anti-abrasion plate 5 and the second connecting plate 52.

[0038] Specifically, the first connecting plate 51 and the second connecting plate 52 are arranged, so that after being folded by 90 degrees through the first fold line 53, the first connecting plate 51 and the second connecting plate 52 are respectively abutted against the outer walls of the two sides of the inner paper card 2, and the overall structure is stable and reliable.

[0039] The paper-plastic corner plug packaging structure, the top of the anti-abrasion plate 5 is provided with a first protective plate 61; the bottom of the anti-abrasion plate 5 is provided with a second protective plate 62; the first protective plate 61 and the second protective plate 62 are respectively abutted against the outer walls of the buffer structure 23; and the second fold line 63 is arranged between the anti-abrasion plate 5 and the first protective plate 61 and between the anti-abrasion plate 5 and the second protective plate 62.

[0040] Specifically, the first protective plate 61 and the second protective plate 62 are arranged, so that after being folded by 180 degrees through the second fold line 63, the first protective plate 61 and the second protective plate 62 are respectively abutted against the outer walls of the buffer structure 23, and the overall structure has a stronger buffering effect.

[0041] The paper-plastic corner plug packaging structure, the top of the first baffle 31 is provided with a first locking plate 71; the top of the second baffle 32 is provided with a second locking plate 72; the first locking plate 71 and the second locking plate 72 are respectively abutted against the outer walls of the flat surface 12; and the reverse pressure line 73 is arranged between the first locking plate 71 and the first baffle 31 and between the second locking plate 72 and the second baffle 32.

[0042] Specifically, the first locking plate 71 and the second locking plate 72 are arranged, so that after being folded by 90 degrees through the reverse pressure line 73, the first locking plate 71 and the second locking plate 72 are respectively abutted against the outer walls of the flat surface 12, and the overall structure is stable and reliable.

[0043] The paper-plastic corner plug packaging structure, the first locking plate 71 is provided with a first locking slot 74; and the second locking plate 72 is provided with a second locking slot 75 matched with the first locking slot 74.

[0044] Specifically, through the above arrangement, after the first locking plate 71 and the second locking plate 72 are folded by 90 degrees through the reverse pressure line 73, the first locking plate 71 and the second locking plate 72 can be locked through the first locking slot 74 and the second locking slot 75, thereby further enhancing the stability of the overall structure.

[0045] The first protection plate 61 and the second protection plate 62 are respectively abutted against the inner side of the anti-abrasion flower plate 5, and the outer side of the anti-abrasion flower plate 5 is provided with an anti-abrasion flower surface 8. Through the above arrangement, after the paper-plastic part is installed, the anti-abrasion flower surface 8 on the outer side of the anti-abrasion flower plate 5 is in contact with the product, thereby preventing the product from being abraded.

[0046] The inner paper card 2 is BC type corrugated paper, and the outer paper card 9 is E type corrugated paper.

[0047] Specifically, the paper-plastic corner packaging structure has the advantages that the inner paper card 2 and the outer paper card 9 are both made of corrugated paper, and have excellent cushioning performance and an attractive appearance; in addition, the inner paper card 2 is made of BC type corrugated paper, is green and environmentally friendly, can be used to form a complex packaging structure, and is designed in a continuous sheet type through a packaging process; and the outer paper card 9 is made of E type corrugated paper, is green and environmentally friendly, and has an attractive appearance after being folded and formed.

[0048] In addition, the inner paper card 2 is designed in a continuous sheet type, can be reasonably laid out, reduces the layout size, saves packaging materials, and reduces the cost of packaging; and each inner card 1 does not need to be glued, thereby reducing the time cost of production and improving the production efficiency.

[0049] In addition, the inner paper card 2 is folded to form three groups of cushioning structures 23, has excellent cushioning performance, and can add cushioning structures 23 according to the requirements of customers and the conditions of products.

[0050] In addition, the outer paper card 9 can form a cavity for placing the inner paper card 2 through the first folding, and the bottom is perfectly clamped with the inner paper card 2.

[0051] In addition, the outer paper card 9 is combined with the inner paper card 2 after the first folding, forms a combination after the combination, and the combination is fixed at the top through the structure of the first locking slot 74 and the second locking slot 75, and the side edges are appropriately adhered, thereby forming a whole, having an attractive appearance and cushioning performance.

[0052] In addition, the combination of the outer paper card 9 after the combination has a smooth anti-abrasion flower surface 8 at the front, and the surface can directly contact the product, thereby playing a role of preventing abrasion.

[0053] It should be explained finally that the above embodiment is only used to illustrate the technical scheme of the utility model, and is not the limit of the protection scope of the utility model, although the utility model is explained in detail with reference to the preferred embodiment, the ordinary skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently, and does not deviate from the essence and scope of the technical scheme of the utility model.

Claims

1. A gusseted paper-plastic packaging structure, characterized by: The inner paper card (2) comprises a plurality of inner card sheets (1) connected in sequence; one end of the inner card sheet (1) is connected with one end of the adjacent inner card sheet (1); the other end of the inner card sheet (1) is connected with the other end of the adjacent inner card sheet (1); the bottom of the inner card sheet (1) is provided with a notch (11); the top of the inner card sheet (1) is provided with a flat surface (12); The flat surfaces (12) of the plurality of inner card sheets (1) form a flat table (21) at the top of the inner paper card (2) after being folded; the notches (11) of the plurality of inner card sheets (1) form a displacement slot (22) at the bottom of the inner paper card (2) after being folded; the other end of the plurality of inner card sheets (1) forms a buffer structure (23) at the front of the inner paper card (2) after being folded; The outer paper card (9) comprises a first baffle (31), a second baffle (32), a receiving plate (3) and an abutting plate; the receiving plate (3) is arranged between the first baffle (31) and the second baffle (32); the receiving plate (3) abuts against the bottom wall of the displacement slot (22); the first baffle (31) and the second baffle (32) respectively abut against the outer walls of the two sides of the inner paper card (2); the abutting plate abuts against the outer wall of the buffer structure (23).

2. The gusseted paper-plastic packaging structure according to claim 1, characterized in that: One end of the inner card sheet (1) is provided with a half threading (41).

3. The gusseted paper-plastic packaging structure according to claim 1, characterized in that: The other end of the inner card sheet (1) is provided with a positive pressure line (42).

4. The gusseted paper-plastic packaging structure according to claim 1, characterized in that: The abutting plate comprises an anti-abrasion flower plate (5); one side of the anti-abrasion flower plate (5) is provided with a first connecting plate (51); the other side of the anti-abrasion flower plate (5) is provided with a second connecting plate (52); the first connecting plate (51) and the second connecting plate (52) respectively abut against the outer walls of the two sides of the inner paper card (2); first fold lines (53) are arranged between the anti-abrasion flower plate (5) and the first connecting plate (51) and between the anti-abrasion flower plate (5) and the second connecting plate (52).

5. The gusseted paper-plastic packaging structure according to claim 4, characterized in that: The top of the anti-abrasion flower plate (5) is provided with a first protective plate (61); the bottom of the anti-abrasion flower plate (5) is provided with a second protective plate (62); the first protective plate (61) and the second protective plate (62) respectively abut against the outer wall of the buffer structure (23); second fold lines (63) are arranged between the anti-abrasion flower plate (5) and the first protective plate (61) and between the anti-abrasion flower plate (5) and the second protective plate (62).

6. The gusseted paper-plastic packaging structure according to claim 1, characterized in that: The top of the first baffle (31) is provided with a first locking plate (71); the top of the second baffle (32) is provided with a second locking plate (72); the first locking plate (71) and the second locking plate (72) respectively abut against the outer wall of the flat surface (12); reverse pressure lines (73) are arranged between the first locking plate (71) and the first baffle (31) and between the second locking plate (72) and the second baffle (32).

7. A gusseted paper-plastic packaging structure according to claim 6, characterized in that: The first locking plate (71) is provided with a first locking groove (74); the second locking plate (72) is provided with a second locking groove (75) matched with the first locking groove (74).

8. The gusseted paper-plastic packaging structure according to claim 5, characterized in that: The first guard plate (61) and the second guard plate (62) respectively abut against the inner side of the wear-resistant flower plate (5); the outer side of the wear-resistant flower plate (5) is provided with a wear-resistant flower surface (8).

9. The gusseted paper-plastic packaging structure according to claim 1, characterized in that: The inner paper card (2) is a BC type corrugated paper.

10. The gusseted paper-plastic packaging structure according to claim 1, characterized in that: The outer paper card (9) is an E type corrugated paper.