A type of L-shaped paper corner protector

Abstract

This utility model discloses an L-shaped paper corner protector, which includes a ground and a limiting mechanism. A box is installed on the upper end of the ground. The limiting mechanism includes a plurality of first paper corner protectors that abut against the four corners of the bottom of the box. Each first paper corner protector has a groove. A honeycomb cardboard is slidably connected in the groove and slides against the inner wall of the groove. The honeycomb cardboard has a groove. A belt is slidably connected in the groove and slides against the inner wall of the groove. A mounting frame is fixedly installed on one of the first paper corner protectors and is opposite to the belt. The belt slides against the inner wall of the mounting frame. A plurality of through holes are fixedly installed on the belt. A limiting member is installed on the mounting frame and is opposite to the through holes. The stability of the paper corner protector is ensured by the cooperation between the belt, the mounting frame, the limiting bolt, the connecting frame and the L-shaped block, and it can quickly adapt to boxes of different heights.

Description

Technical Field

[0001] This utility model belongs to the field of paper corner protector technology, specifically an L-shaped paper corner protector. Background Technology

[0002] L-shaped paper corner protectors, as an environmentally friendly packaging material, are mainly used to protect the edges and corners of goods during transportation and storage. They are made of multiple layers of kraft paper bonded together with glue and pressed into an L-shape, possessing both a certain degree of hardness and toughness. In practical applications, they can effectively distribute the pressure on the packaged items during stacking and handling, preventing the edges and corners of containers such as cardboard boxes and wooden crates from deformation and damage due to collisions and squeezing. They are especially suitable for packaging fragile items such as boards, pipes, furniture, and electronic equipment. Furthermore, L-shaped paper corner protectors can be used in conjunction with packing straps to enhance the overall strength of the packaging, prevent damage to the packaging surface when the packing straps tighten, and reduce the risk of goods collapsing by improving stacking stability. Because the material is recyclable and easily degradable, it aligns with the development trend of green packaging and is widely used in the logistics packaging field.

[0003] During transportation, although paper corner protectors can cover the edges and corners of items, their lightweight nature and simple, non-secure fastening to packaging make them prone to displacement or even detachment when vehicles bump or goods shake. Once they deviate from their protected position, the edges and corners of the items are directly exposed to the risk of collision and friction. This displacement of the paper corner protectors may create additional pressure points, exacerbating packaging damage and item damage. When it is necessary to increase the number of paper corner protectors to enhance protection, the lack of convenient connection structures between different paper corner protectors usually requires the use of tape wrapping or rope binding for splicing. This is not only cumbersome and time-consuming, but also makes it difficult to guarantee the firmness of the splices, making them prone to loosening during handling or transportation. This increases the complexity of the packaging process and makes it difficult to flexibly adjust the combination of paper corner protectors according to the size of the goods, limiting their adaptability in packaging large or irregularly shaped items. Therefore, this application proposes an L-shaped paper corner protector. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an L-shaped paper corner protector, which effectively solves the problems of unstable paper corner protectors and inconvenience in adding paper corner protectors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an L-shaped paper corner protector, comprising a ground and a limiting mechanism, wherein a box is installed at the upper end of the ground; the limiting mechanism includes a plurality of first paper corner protectors abutting against the four corners of the bottom of the box, each first paper corner protector having a sliding groove, wherein a honeycomb cardboard is slidably connected within the sliding groove and slidingly abutting against the inner wall of the sliding groove, wherein a groove is provided on the honeycomb cardboard, wherein a belt is slidably connected within the groove and slidingly abutting against the inner wall of the groove, wherein a mounting frame is fixedly installed on one of the first paper corner protectors and is disposed opposite to the belt, wherein the belt slides against the inner wall of the mounting frame, wherein a plurality of through holes are fixedly installed on the belt, and a limiting member is installed on the mounting frame and is disposed opposite to the through holes.

[0006] Preferably, the mounting frame is fixedly equipped with a through-hole that penetrates the mounting frame, the through-hole is positioned opposite to the limiting member, and the through-hole can be positioned opposite to the through-hole.

[0007] Preferably, the limiting member includes a limiting bolt that slides against the inner wall of the through opening, the limiting bolt sliding against the inner wall of the through opening.

[0008] Preferably, a spring is fixedly installed on the limiting bolt and the mounting frame, and the spring can drive the limiting bolt to reset.

[0009] Preferably, a connecting frame is fixedly installed at the upper end of the first paper corner protector, and an L-shaped block that slides and abuts against the inner wall of the connecting frame is slidably connected inside the connecting frame.

[0010] Preferably, a second paper corner protector is fixedly installed on the upper end of the L-shaped block, the second paper corner protector slides against the box body, and a pad is fixedly installed on the first paper corner protector.

[0011] Preferably, the pad slides against the box body and against the ground, and a handle is fixedly installed on the upper end of the box body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a limiting mechanism, and utilizing the cooperation between the belt, the mounting frame, the limiting bolt, and the through-hole, pulling the belt causes it to abut against the inner wall of the mounting frame. The belt will cause the first paper corner protector to fit tightly against the box body. The through-hole will be positioned opposite the limiting bolt. When the limiting bolt is released, the spring can drive the limiting bolt to move. The moving limiting bolt will slide against the inner wall of the through-hole, thereby limiting the belt and completing the limiting of the first paper corner protector. This prevents the displacement of the first paper corner protector from affecting the stability of the box body and ensures the stability of the paper corner protector. Utilizing the cooperation between the connecting frame and the L-shaped block, other paper corner protectors can be installed quickly, thereby quickly adapting to boxes of different heights. Attached Figure Description

[0013] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of the L-shaped paper corner protector of this utility model;

[0016] Figure 2 This is a cross-sectional view of the L-shaped paper corner protector of this utility model;

[0017] Figure 3 This is a top sectional view of the L-shaped paper corner protector of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 This utility model Figure 2 Enlarged view of point B in the middle;

[0020] Figure 6 This utility model Figure 3 Enlarged view of point C in the middle;

[0021] In the diagram: 1. Box body; 2. Ground; 3. Handle; 4. Second paper corner protector; 5. First paper corner protector; 6. Connecting frame; 7. Belt; 8. Honeycomb cardboard; 9. Slide groove; 10. Groove; 11. Limiting bolt; 12. Spring; 13. Mounting frame; 14. Through opening; 15. Through opening; 16. L-shaped block; 17. Pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Depend on Figures 1-6 The present invention includes a ground 2 and a limiting mechanism. A box 1 is installed on the upper end of the ground 2. The limiting mechanism includes a plurality of first paper corner protectors 5 that abut against the four corners of the bottom of the box 1. Each first paper corner protector 5 is provided with a sliding groove 9. A honeycomb cardboard 8 that slides against the inner wall of the sliding groove 9 is slidably connected in the sliding groove 9. The honeycomb cardboard 8 is provided with a groove 10. A belt 7 that slides against the inner wall of the groove 10 is slidably connected in the groove 10. An installation frame 13 that is opposite to the belt 7 is fixedly installed on one of the first paper corner protectors 5. The belt 7 slides against the inner wall of the installation frame 13. A plurality of through holes 14 that pass through the belt 7 are fixedly installed on the belt 7.

[0024] A limiting member is installed on the mounting frame 13, which is opposite to the through opening 14. A through opening 15 is fixedly installed on the mounting frame 13, which is opposite to the limiting member. The through opening 14 can be opposite to the through opening 15. The limiting member includes a limiting bolt 11 that slides against the inner wall of the through opening 14. The limiting bolt 11 slides against the inner wall of the through opening 15. A spring 12 is fixedly installed on the limiting bolt 11 and the mounting frame 13. The spring 12 can drive the limiting bolt 11 to reset.

[0025] During operation, the box 1 is placed on the pad 17, and the belt 7 is pulled through the grooves 10 on the multiple first paper corner protectors 5. The belt 7 is positioned opposite the mounting frame 13, and the belt 7 is pulled so that it abuts against the inner wall of the mounting frame 13. The belt 7 will cause the first paper corner protectors 5 to be tightly pressed against the box 1. Pulling the limit bolt 11 can cause the limit bolt 11 to move out of the mounting frame 13, and the spring 12 is stretched. Then, the through hole 14 is positioned opposite the limit bolt 11. The limit bolt 11 is released, and the spring 12 can cause the limit bolt 11 to move. The movement of the limit bolt 11 will slide against the inner wall of the through hole 14, thereby limiting the belt 7 and completing the limitation of the first paper corner protectors 5. This ensures that the first paper corner protectors 5 are tightly pressed against the box 1, preventing the displacement of the first paper corner protectors 5 from affecting the stability of the box 1.

[0026] A connecting frame 6 is fixedly installed at the upper end of the first paper corner protector 5. An L-shaped block 16 is slidably connected inside the connecting frame 6 and slides against the inner wall of the connecting frame 6. A second paper corner protector 4 is fixedly installed at the upper end of the L-shaped block 16. The second paper corner protector 4 slides against the box body 1. A pad 17 is fixedly installed on the first paper corner protector 5. The pad 17 slides against the box body 1 and slides against the ground 2. A handle 3 is fixedly installed at the upper end of the box body 1.

[0027] When the first paper corner protector 5 needs to be disassembled, pulling the limiting bolt 11 can cause the limiting bolt 11 to leave the through hole 14, and can pull the belt 7 to leave the mounting frame 13, so that the first paper corner protector 5 is no longer limited, thus completing the disassembly of the first paper corner protector 5. When the height of the first paper corner protector 5 is not enough to protect the box 1, the L-shaped block 16 is set opposite to the connecting frame 6, and pushing the second paper corner protector 4 can cause the second paper corner protector 4 to move. The second paper corner protector 4 will cause the L-shaped block 16 to move. The movement of the L-shaped block 16 will slide against the inner wall of the connecting frame 6, thus completing the limiting installation of the second paper corner protector 4.

[0028] Working principle: During operation, the box body 1 is placed on the pad 17, and the belt 7 is pulled through the grooves 10 on the multiple first paper corner protectors 5. The belt 7 is positioned opposite the mounting frame 13. Pulling the belt 7 causes it to abut against the inner wall of the mounting frame 13. The belt 7 will cause the first paper corner protectors 5 to be tightly pressed against the box body 1. Pulling the limit bolt 11 will cause it to move out of the mounting frame 13, and the spring 12 will be stretched. Then, the through hole 14 will be positioned opposite the limit bolt 11. Releasing the limit bolt 11 will cause the spring 12 to move the limit bolt 11. The movement of the limit bolt 11 will slide against the inner wall of the through hole 14, thereby limiting the belt 7 and completing the limitation of the first paper corner protectors 5. This ensures that the first paper corner protectors 5 are tightly pressed against the box body 1, preventing the displacement of the first paper corner protectors 5 from affecting the stability of the box body 1.

[0029] When the first paper corner protector 5 needs to be disassembled, pulling the limiting bolt 11 can move the limiting bolt 11 away from the through hole 14, and can pull the belt 7 away from the mounting frame 13, so that the first paper corner protector 5 is no longer limited, and the disassembly of the first paper corner protector 5 is completed. When the height of the first paper corner protector 5 is not enough to protect the box 1, the L-shaped block 16 is set opposite to the connecting frame 6, and pushing the second paper corner protector 4 can move the second paper corner protector 4. The second paper corner protector 4 will move the L-shaped block 16. The movement of the L-shaped block 16 will slide against the inner wall of the connecting frame 6, thereby completing the limiting installation of the second paper corner protector 4.

Claims

1. An L-shaped paper corner protector, comprising a ground (2) and a limiting mechanism, characterized in that: The upper end of the ground (2) is equipped with a box (1); the limiting mechanism includes a plurality of first paper corner protectors (5) that abut against the four corners of the bottom of the box (1), the first paper corner protectors (5) are provided with a sliding groove (9), a honeycomb cardboard (8) that slides against the inner wall of the sliding groove (9) is slidably connected in the sliding groove (9), a groove (10) is provided on the honeycomb cardboard (8), a belt (7) that slides against the inner wall of the groove (10) is slidably connected in the groove (10), and an installation frame (13) that is opposite to the belt (7) is fixedly installed on one of the first paper corner protectors (5), the belt (7) slides against the inner wall of the installation frame (13), a plurality of through holes (14) that pass through the belt (7) are fixedly installed on the belt (7), and a limiting member that is opposite to the through hole (14) is installed on the installation frame (13).

2. The L-shaped paper corner protector according to claim 1, characterized in that: The mounting frame (13) is fixedly installed with a through-hole (15) that passes through the mounting frame (13). The through-hole (15) is positioned opposite to the limiting member, and the through-hole (14) is positioned opposite to the through-hole (15).

3. An L-shaped paper corner protector according to claim 2, characterized in that: The limiting element includes a limiting bolt (11) that slides against the inner wall of the through opening (14), and the limiting bolt (11) slides against the inner wall of the through opening (15).

4. An L-shaped paper corner protector according to claim 3, characterized in that: The limiting bolt (11) and the mounting frame (13) are fixedly installed with springs (12), and the springs (12) can drive the limiting bolt (11) to reset.

5. An L-shaped paper corner protector according to claim 1, characterized in that: A connecting frame (6) is fixedly installed at the upper end of the first paper corner protector (5), and an L-shaped block (16) that slides against the inner wall of the connecting frame (6) is slidably connected inside the connecting frame (6).

6. An L-shaped paper corner protector according to claim 5, characterized in that: The upper end of the L-shaped block (16) is fixedly installed with a second paper corner protector (4), which slides against the box body (1). A pad (17) is fixedly installed on the first paper corner protector (5).

7. An L-shaped paper corner protector according to claim 6, characterized in that: The pad (17) slides against the box (1), the pad (17) slides against the ground (2), and a handle (3) is fixedly installed on the upper end of the box (1).

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