A composite structure all-angle protective pad

By using a composite structure of all-angle protective padding, combined with L-shaped paper corner protectors, honeycomb cardboard, and EPE pearl cotton of different densities, the problem of insufficient hardness and cushioning of traditional packaging padding is solved, achieving all-angle protection and electrostatic protection for precision equipment, and improving the integrity of equipment during transportation.

CN224428567UActive Publication Date: 2026-06-30QINGDAO JIETAI PLASTIC IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO JIETAI PLASTIC IND CO LTD
Filing Date
2025-09-08
Publication Date
2026-06-30

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Abstract

This utility model provides a composite structure all-angle protective pad, relating to the field of protective pads. It includes an upper cover, comprising a first frame and a first buffer material disposed within the first frame; and a lower support, comprising a second frame, first EPE foam disposed at the four corners of the second frame, second EPE foam disposed between two of the first EPE foams, and a second buffer material disposed between the first EPE foams, the second EPE foam, and the second frame. This utility model achieves all-angle, low-cost, and high-efficiency protection for equipment through EPE foam density grading, anti-static properties, structural design, and functional integration. The combination of high-density and low-density EPE foam solves the problem of contradictory performance characteristics of a single material. The combination of L-shaped paper corner protectors and honeycomb cardboard ensures that the corners, edges, and surfaces of the equipment receive cushioning support during transportation or drops, avoiding the difficulty of traditional packaging pads simultaneously meeting the dual requirements of hardness and cushioning.
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Description

Technical Field

[0001] This utility model belongs to the field of protective pads, specifically a composite structure all-angle protective pad. Background Technology

[0002] Protective padding is an auxiliary material or structure used to protect products, especially precision equipment, fragile items, or high-value goods, from physical damage during transportation, storage, or use. Its core function is to ensure product integrity by absorbing impact, dispersing pressure, reducing friction, or isolating environmental hazards. It is an indispensable component of modern logistics and packaging systems.

[0003] Traditional packaging liners often use a single material, such as ordinary foam, bubble wrap, or low-density pearl cotton, making it difficult to simultaneously meet the dual requirements of hardness and cushioning.

[0004] In summary, this utility model provides a composite structure all-angle protective pad to solve the above problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A composite structure all-around protective pad, including a top cover,

[0007] The top cover includes a first frame and a first buffer disposed within the first frame;

[0008] The lower support includes a second frame, first pearl cotton disposed at the four corners of the second frame, second pearl cotton disposed between the two first pearl cottons, and a second buffer disposed between the first pearl cotton, the second pearl cotton and the second frame.

[0009] Furthermore, in this invention, the lower support also includes antistatic pearl cotton disposed between the second buffer and the first pearl cotton.

[0010] Furthermore, in this invention, the surface of the first pearl cotton is provided with a circular clearance hole.

[0011] Furthermore, in this utility model, corner protection units are provided at the four corners of the upper cover and the lower support. The corner protection units include cardboard corner protectors, which are movably connected to the corners of the upper cover and the lower support.

[0012] Furthermore, in this utility model, the corner protection unit also includes a connecting slot formed on the surface of the cardboard corner protector and a connecting block fixedly connected to the surface of the cardboard corner protector, wherein the connecting block is engaged with the inner cavity of the connecting slot.

[0013] Furthermore, in this invention, the inner surface of the cardboard corner protector is provided with corrugated paper.

[0014] Furthermore, in this utility model, both the first frame and the second frame are L-shaped paper corner protectors and are fixed by nails, and both the first cushioning material and the second cushioning material are made of honeycomb cardboard.

[0015] Beneficial effects: This utility model has the following beneficial effects:

[0016] This invention achieves all-around, low-cost, and high-efficiency protection for equipment through EPE pearl cotton density grading, anti-static properties, structural design, and functional integration. The combination of high-density and low-density EPE pearl cotton solves the problem of contradictory performance of single materials. The combination of L-shaped paper corner protectors and honeycomb cardboard ensures that the corners, edges, and surfaces of the equipment are cushioned and supported during transportation or drops, avoiding the difficulty of traditional packaging padding in simultaneously meeting the dual requirements of hardness and cushioning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the upper cover structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the lower support structure of this utility model.

[0019] Figure 3 This is a utility model Figure 1 Schematic diagram of the cross-sectional structure at point A in the middle.

[0020] Figure 4 This is a utility model Figure 2 Schematic diagram of the cross-sectional structure at point B.

[0021] Figure 5 This is a schematic diagram of the corner protection unit structure of this utility model.

[0022] Figure 6 This is a utility model Figure 5 Schematic diagram of the cross-sectional structure at point C.

[0023] In the picture:

[0024] 1. Top cover; 101. First frame; 102. First cushioning material; 2. Lower support; 201. Second frame; 202. Second cushioning material; 203. First pearl cotton; 204. Second pearl cotton; 205. Antistatic pearl cotton; 206. Circular clearance hole; 3. Corner protection unit; 301. Cardboard corner protector; 302. Connecting slot; 303. Connecting block; 3011. Corrugated paper. Detailed Implementation

[0025] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0026] Example 1

[0027] like Figure 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides a composite structure all-angle protective pad, including a top cover 1.

[0028] The upper cover 1 includes a first frame 101 and a first buffer 102 disposed within the first frame 101;

[0029] The lower support 2 includes a second frame 201, first pearl cotton 203 disposed at the four corners of the second frame 201, second pearl cotton 204 disposed between the two first pearl cotton 203, and a second buffer 202 disposed between the first pearl cotton 203, the second pearl cotton 204 and the second frame 201.

[0030] Both the first frame 101 and the second frame 201 use L-shaped paper corner protectors and are fixed by nails. Both the first cushioning material 102 and the second cushioning material 202 are made of honeycomb cardboard.

[0031] like Figure 1-4As shown, the first frame 101 and the second frame 201 adopt L-shaped paper corner protectors. The L-shaped paper corner protectors are bent to form a standard-sized outer ring structure, and then fixed with nails. The rigidity of the paper corner protectors is used to form a standard size, and the bending ensures that the splicing is seamless, providing full-angle protection in the event of a drop, enhancing overall rigidity, and ensuring that the upper cover 1 and lower support 2 are not easily deformed during transportation or drops. The first buffer 102 and the second buffer 202 are made of honeycomb cardboard, which uses its porous structure to absorb impact force, providing cushioning for the top of the equipment and preventing damage caused by direct collision. The corners and edges provide cushioning space to prevent wear and tear on the product due to their own hardness, while maintaining a lightweight structure. The first pearl cotton 203 is made of high-density EPE polyethylene foam material, which balances hardness and cushioning performance. It is set at the four corners of the second frame 201 to provide reinforced protection for the weakest part of the equipment corners, preventing damage to the equipment corners due to stress concentration during drops. The second pearl cotton 204 is made of low-density EPE, which is soft and low-cost. It is set between the two first pearl cotton 203 to fill the gaps and provide auxiliary cushioning, while reducing the overall packaging cost.

[0032] Example 2

[0033] Reference Figure 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] In this embodiment, the lower support 2 also includes antistatic pearl cotton 205 disposed between the second buffer 202 and the first pearl cotton 203.

[0035] The surface of the first pearl cotton 203 has a circular clearance hole 206.

[0036] like Figure 2 As shown, antistatic pearl cotton 205 is made by adding antistatic agents or conductive materials to ordinary pearl cotton polyethylene foam material. Its core function is to suppress the accumulation of static electricity and avoid damage to sensitive electronic components, precision instruments and other equipment caused by electrostatic discharge (ESD) due to friction, contact separation and other factors. It also prevents equipment breakdown caused by static electricity. The circular clearance hole 206 avoids direct contact with the corners of the equipment and further reduces friction.

[0037] Example 3

[0038] Reference Figure 5-6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0039] In this embodiment, corner protection units 3 are provided at the four corners of the upper cover 1 and the lower support 2. Each corner protection unit 3 includes a cardboard corner protector 301, which is movably connected to the corners of the upper cover 1 and the lower support 2. These units are used to protect the four corners of the upper cover 1 and the lower support 2.

[0040] The corner protection unit 3 also includes a connecting slot 302 formed on the surface of the cardboard corner protector 301 and a connecting block 303 fixedly connected to the surface of the cardboard corner protector 301. The connecting block 303 is engaged in the inner cavity of the connecting slot 302.

[0041] The inner surface of the cardboard corner protector 301 is provided with corrugated paper 3011.

[0042] like Figure 5-6 As shown, the cardboard corner protector 301, through its bending design, utilizes the rigidity of the cardboard to enhance overall rigidity, ensuring full-angle protection and providing additional protection for the four corners of the upper cover 1 and lower support 2, thereby enhancing overall impact resistance. The connecting slot 302 and connecting block 303 secure the cardboard corner protector 301 through a snap-fit ​​mechanism, ensuring stable installation and preventing displacement or detachment during transportation. The corrugated paper 3011, with its wavy structure, enhances the compression and impact resistance of the cardboard corner protector 301, further improving the protective effect.

[0043] In use, the first frame 101 and the second frame 201 adopt L-shaped paper corner protectors to provide full-angle protection during drops, enhancing overall rigidity and ensuring that the upper cover 1 and lower support 2 are not easily deformed during transportation or drops. The first buffer 102 and the second buffer 202 are made of honeycomb cardboard, utilizing their porous structure to absorb impact force, providing cushioning for the top of the equipment to avoid damage caused by direct collisions, and providing cushioning space for drops to the corners and edges to avoid wear and tear on the product due to their own hardness, while maintaining a lightweight structure. The first pearl cotton 203 is made of high-density EPE polyethylene foam material, balancing hardness and... The cushioning performance is provided by placing the second frame 201 at the four corners, which provides reinforced protection for the weakest points of the equipment corners and prevents damage to the equipment corners due to stress concentration when the equipment is dropped. The second pearl cotton 204 is made of low-density EPE, which is soft and low cost. It is placed between the two first pearl cotton 203 to fill the gaps and provide auxiliary cushioning, while reducing the overall packaging cost. The anti-static pearl cotton 205 has the core function of suppressing static electricity accumulation and avoiding damage to sensitive electronic components, precision instruments and other equipment caused by electrostatic discharge caused by friction, contact separation and other factors. It also prevents the equipment from being broken down due to static electricity.

[0044] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0045] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A full-angle protective gasket for a composite structure, characterized by: Including the top cover (1) The top cover (1) includes a first frame (101) and a first buffer (102) disposed within the first frame (101). The lower support (2) includes a second frame (201), first pearl cotton (203) disposed at the four corners of the second frame (201), second pearl cotton (204) disposed between the two first pearl cotton (203), and a second buffer (202) disposed between the first pearl cotton (203), the second pearl cotton (204), and the second frame (201).

2. The all-angle protective pad with the composite structure as described in claim 1, characterized in that: The lower support (2) also includes antistatic pearl cotton (205) disposed between the second buffer (202) and the first pearl cotton (203).

3. The all-angle protective pad with the composite structure as described in claim 1, characterized in that: The surface of the first pearl cotton (203) is provided with a circular clearance hole (206).

4. The all-angle protective pad with the composite structure as described in claim 1, characterized in that: The upper cover (1) and the lower support (2) are each provided with a corner protection unit (3) at their four corners. The corner protection unit (3) includes a cardboard corner protector (301), which is movably connected to the corners of the upper cover (1) and the lower support (2).

5. The all-angle protective pad with the composite structure as described in claim 4, characterized in that: The corner protection unit (3) further includes a connecting slot (302) formed on the surface of the cardboard corner protector (301) and a connecting block (303) fixedly connected to the surface of the cardboard corner protector (301), wherein the connecting block (303) is engaged in the inner cavity of the connecting slot (302).

6. The all-angle protective pad with the composite structure as described in claim 4, characterized in that: The inner surface of the cardboard corner protector (301) is provided with corrugated paper (3011).

7. The all-angle protective pad with the composite structure as described in claim 1, characterized in that: The first frame (101) and the second frame (201) both use L-shaped paper corner protectors and are fixed by nails. The first cushion (102) and the second cushion (202) both use honeycomb cardboard.