A paper packaging box reinforced at the bottom

Abstract

The utility model discloses a paper packaging box of bottom reinforcement relates to paper packaging box field, including paper box main part, four first connecting blocks and four second connecting blocks are symmetrically installed on the bottom wall of paper box main part, two first reinforcing plates are symmetrically inserted and installed in paper box main part, first connecting block and second connecting block, two second reinforcing plates are symmetrically inserted and installed on paper box main part and two first reinforcing plates, and second reinforcing plate is composed of base plate, inserting board and connecting pin key, two of base plate, inserting board are provided with, and inserting board fixed mounting is in the inner end of base plate, and connecting pin key is inserted and installed in two inserting boards, through fixedly setting first connecting block and second connecting block on the bottom wall of paper box main part, and setting first reinforcing plate on paper box main part, first connecting block, second connecting block, set up second reinforcing plate on paper box main part, first reinforcing plate, have improved the bottom bearing capacity and the compression resistance of paper box main part obviously.

Description

Technical Field

[0001] This utility model relates to the field of paper packaging boxes, and in particular to a paper packaging box with a reinforced bottom. Background Technology

[0002] Paper packaging boxes are widely used in logistics and product packaging due to their advantages such as being lightweight, environmentally friendly, and inexpensive. However, existing paper packaging boxes still have some structural defects, especially in terms of bottom load-bearing capacity and pressure resistance. Due to the inherent characteristics of paper, the bottom of the packaging box is prone to deformation, cracking, or even collapse when subjected to heavy weight or external impact. This not only affects the aesthetics and usability of the packaging box but may also damage the contents, increasing the risks during transportation and storage. Furthermore, an unstable bottom structure limits the stacking ability of the packaging box, further affecting logistics efficiency and space utilization. To address these issues, this application proposes a paper packaging box with a reinforced bottom. Utility Model Content

[0003] The main objective of this invention is to provide a bottom-reinforced paper packaging box, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A bottom-reinforced paper packaging box includes a box body. Four first connecting blocks and four second connecting blocks are symmetrically installed on the bottom wall of the box body. Two first reinforcing plates are symmetrically inserted into the box body, the first connecting blocks, and the second connecting blocks. Two second reinforcing plates are symmetrically inserted into the box body and the two first reinforcing plates. Each second reinforcing plate consists of a base plate, an insert plate, and a connecting pin. Two base plates and two insert plates are provided. The insert plate is fixedly installed at the inner end of the base plate, and the connecting pin is inserted into the two insert plates.

[0006] Preferably, eight first insertion slots are symmetrically provided on the four side walls of the cardboard box body, and the first insertion slots penetrate through the inside and outside of the side walls of the cardboard box body.

[0007] Preferably, the four second connecting blocks are located between the four first connecting blocks, and each of the first and second connecting blocks has a second insertion slot, which passes through the first and second connecting blocks. The first and second connecting blocks are fixedly installed on the bottom wall of the cardboard box body.

[0008] Preferably, the first reinforcing plate is fixedly inserted into the first insertion slot on the side wall of the cardboard box body, and the second insertion slot on the first connecting block and the second connecting block. Two third insertion slots are symmetrically provided on the first reinforcing plate.

[0009] Preferably, the second reinforcing plate is closely attached to the outer end of the second connecting block. The base plate and the insert plate on the second reinforcing plate are integrally formed. The base plate is inserted into the first insertion groove opened on the side wall of the paper box body. The insert plate is inserted into the third insertion groove opened on the first reinforcing plate. The inner end of the insert plate is provided with a connecting slot. The connecting pin is inserted into the two connecting slots opened on the inner ends of the two insert plates.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] By fixing a first connecting block and a second connecting block to the bottom wall of the cardboard box body, and by setting a first reinforcing plate on the cardboard box body, the first connecting block, and the second connecting block, and setting a second reinforcing plate on the cardboard box body and the first reinforcing plate, the bottom load-bearing capacity and compression resistance of the cardboard box body are significantly improved. This structural design effectively disperses the pressure on the bottom, preventing deformation or collapse caused by excessive local stress, while enhancing the overall stability of the cardboard box body, making it more stable and reliable during stacking and transportation. In addition, the detachable insert design allows the first and second reinforcing plates to be disassembled, recycled, and reused, reducing material waste and improving the environmental performance of the packaging box. Ultimately, it solves the shortcomings of existing paper packaging boxes in terms of load-bearing capacity and compression resistance, and reduces the risk of damage to the contents during transportation and storage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a structural schematic diagram of the cardboard box body, the first connecting block, and the second connecting block of this utility model;

[0014] Figure 3 This is a structural schematic diagram of the first connecting block, the second connecting block, the first reinforcing plate, and the second reinforcing plate of this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the first connecting block, the second connecting block and the first reinforcing plate after disassembly.

[0016] Figure 5 This is an exploded view of the second reinforcing plate of this utility model;

[0017] Figure 6 For the present utility model Figure 5 A magnified view of point A.

[0018] In the diagram: 1. Main body of the cardboard box; 2. First connecting block; 3. Second connecting block; 4. First reinforcing plate; 5. Second reinforcing plate; 6. First insertion slot; 7. Second insertion slot; 8. Third insertion slot; 9. Base plate; 10. Insert plate; 11. Connecting slot; 12. Connecting pin. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-6 As shown, a bottom-reinforced paper packaging box includes a box body 1. Four first connecting blocks 2 and four second connecting blocks 3 are symmetrically installed on the bottom wall of the box body 1. Two first reinforcing plates 4 are symmetrically inserted into the box body 1, the first connecting blocks 2, and the second connecting blocks 3. Two second reinforcing plates 5 are symmetrically inserted into the box body 1 and the two first reinforcing plates 4. Each second reinforcing plate 5 consists of a base plate 9, insert plates 10, and connecting pins 12. Two base plates 9 and two insert plates 10 are provided, with the insert plates 10 fixedly installed at the inner end of the base plate 9. The connecting pins 12 are inserted into the two insert plates 10. In use, firstly, the four first connecting blocks 2 and four second connecting blocks 3 are fixedly installed on the bottom wall of the box body 1, ensuring that the four second connecting blocks 3 are located between the four first connecting blocks 2. Then, the two first reinforcing plates 4 are respectively inserted into the box body 1. The first insertion slot 6 on the side wall of the box body 1 and the second insertion slot 7 on the first connecting block 2 and the second connecting block 3 are used to securely fix the first reinforcing plate 4 inside the box body 1. Then, the base plate 9 of the second reinforcing plate 5 is inserted into the first insertion slot 6 on the side wall of the box body 1, and the insert plate 10 of the second reinforcing plate 5 is inserted into the third insertion slot 8 on the first reinforcing plate 4. Finally, the connecting pin 12 is inserted into the connecting slot 11 at the inner end of the two insert plates 10 to complete the fixation of the second reinforcing plate 5. Through this insertion design, the first reinforcing plate 4 and the second reinforcing plate 5 can effectively distribute the pressure at the bottom of the box body 1, enhance its load-bearing capacity and pressure resistance, and the detachable structure facilitates recycling and reuse, improving environmental performance. Ultimately, the stability and reliability of the bottom structure of the packaging box are achieved.

[0021] Specifically, eight first insertion slots 6 are symmetrically formed on the four side walls of the cardboard box body 1. The first insertion slots 6 penetrate through the inside and outside of the side walls of the cardboard box body 1. Four second connecting blocks 3 are located between the four first connecting blocks 2, and each of the first connecting blocks 2 and the second connecting blocks 3 has a second insertion slot 7 that penetrates through them. The first connecting blocks 2 and the second connecting blocks 3 are fixedly installed on the bottom wall of the cardboard box body 1. The first reinforcing plate 4 is fixedly inserted into the side wall of the cardboard box body 1. The first insertion slot 6 and the second insertion slots 7 on the first connecting block 2 and the second connecting block 3 are provided. Two third insertion slots 8 are symmetrically provided on the first reinforcing plate 4. The second reinforcing plate 5 is tightly attached to the outer end of the second connecting block 3. The base plate 9 and the insert plate 10 on the second reinforcing plate 5 are integrally formed. The base plate 9 is inserted into the first insertion slot 6 on the side wall of the cardboard box body 1, and the insert plate 10 is inserted into the third insertion slots 8 on the first reinforcing plate 4. A connecting slot 11 is provided at the inner end of the insert plate 10, and a connecting pin 12 is inserted into the two... To prevent the first reinforcing plate 4 and the second reinforcing plate 5 from slipping out of the first insertion slot 6, the second insertion slot 7, and the third insertion slot 8 when the first reinforcing plate 4 and the second reinforcing plate 5 are accidentally subjected to force, the anti-slip principle is mainly achieved through the following design: First, when the first reinforcing plate 4 is inserted into the first insertion slot 6 and the second insertion slot 7, an interference fit or additional friction texture is used to increase the friction of the contact surface, making it less prone to loosening; second, after the insertion plate 10 of the second reinforcing plate 5 is inserted into the third insertion slot 8, it is transversely penetrated by the connecting pin 12. The connecting slots 11 of the two insert plates 10 form a mechanical interlocking structure, so that the insert plates 10 cannot be dislodged even under longitudinal tension. At the same time, the contact surface between the base plate 9 and the first insertion slot 6 adopts a trapezoidal or dovetail groove design, so that the second reinforcing plate 5 becomes more and more tightly locked under force. In addition, the first connecting block 2 and the second connecting block 3 provide multi-point support for the first reinforcing plate 4, dispersing local stress and avoiding slippage caused by excessive force on a single point. These structures work together to ensure that the first reinforcing plate 4 and the second reinforcing plate 5 maintain a stable connection when under load or impact.

[0022] Ultimately, by fixing the first connecting block 2 and the second connecting block 3 to the bottom wall of the cardboard box body 1, and by setting the first reinforcing plate 4 on the cardboard box body 1, the first connecting block 2, and the second connecting block 3, and setting the second reinforcing plate 5 on the cardboard box body 1 and the first reinforcing plate 4, the bottom load-bearing capacity and compression resistance of the cardboard box body 1 are significantly improved. This structural design effectively disperses the pressure borne by the bottom, preventing deformation or collapse caused by excessive local stress, while enhancing the overall stability of the cardboard box body 1, making it more stable and reliable during stacking and transportation. In addition, the detachable insert design allows the first reinforcing plate 4 and the second reinforcing plate 5 to be disassembled, recycled, and reused, reducing material waste and improving the environmental performance of the packaging box. Ultimately, this solves the shortcomings of existing paper packaging boxes in terms of load-bearing capacity and compression resistance, and reduces the risk of damage to internal items during transportation and storage.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bottom-reinforced paper packaging box, comprising a box body (1), characterized in that: Four first connecting blocks (2) and four second connecting blocks (3) are symmetrically installed on the bottom wall of the paper box body (1). Two first reinforcing plates (4) are symmetrically inserted into the paper box body (1), the first connecting blocks (2) and the second connecting blocks (3). Two second reinforcing plates (5) are symmetrically inserted into the paper box body (1) and the two first reinforcing plates (4). The second reinforcing plate (5) is composed of a base plate (9), an insert plate (10) and a connecting pin (12). There are two base plates (9) and two insert plates (10). The insert plate (10) is fixedly installed on the inner end of the base plate (9). The connecting pin (12) is inserted into the two insert plates (10).

2. The bottom-reinforced paper packaging box according to claim 1, characterized in that: The four side walls of the cardboard box body (1) are symmetrically provided with eight first insertion slots (6), which penetrate the inside and outside of the side walls of the cardboard box body (1).

3. A bottom-reinforced paper packaging box according to claim 2, characterized in that: The four second connecting blocks (3) are located between the four first connecting blocks (2), and each of the first connecting blocks (2) and the second connecting blocks (3) has a second insertion slot (7) through which the second insertion slot (7) on the first connecting blocks (2) and the second connecting blocks (3) passes. The first connecting blocks (2) and the second connecting blocks (3) are fixedly installed on the bottom wall of the cardboard box body (1).

4. A bottom-reinforced paper packaging box according to claim 3, characterized in that: The first reinforcing plate (4) is fixedly inserted into the first insertion slot (6) on the side wall of the cardboard box body (1), the second insertion slot (7) on the first connecting block (2) and the second connecting block (3), and two third insertion slots (8) are symmetrically opened on the first reinforcing plate (4).

5. A bottom-reinforced paper packaging box according to claim 4, characterized in that: The second reinforcing plate (5) is closely attached to the outer end of the second connecting block (3). The base plate (9) and the insert plate (10) on the second reinforcing plate (5) are integrally formed. The base plate (9) is inserted into the first insertion groove (6) opened on the side wall of the paper box body (1). The insert plate (10) is inserted into the third insertion groove (8) opened on the first reinforcing plate (4). The inner end of the insert plate (10) is provided with a connecting slot (11). The connecting pin (12) is inserted into the two connecting slots (11) opened on the inner ends of the two insert plates (10).

Images