Anti-pressing inner support
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINMEI ENVIRONMENTAL PROTECTION PACKAGING PROD CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-19
Smart Images

Figure CN224376508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, specifically to a pressure-resistant inner tray. Background Technology
[0002] Existing packaging trays mostly use a single-cavity structure, making them susceptible to damage from external pressure during transportation. Traditional trays often have a flat support structure, which fails to effectively distribute pressure and lacks a three-dimensional protective mechanism. For example, the receiving slots in common blister trays are supported only by thin walls, making them prone to deformation under pressure. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anti-pressure inner support.
[0004] The purpose of this utility model can be achieved through the following technical solution: an anti-pressure inner support, including two side supports arranged opposite each other, a receiving groove is provided in the side support, and a number of grooves are provided at intervals on the groove wall of the receiving groove, and the grooves form a raised support part on the outside of the side support; the two ends of the side support are connected to the end support through the connecting part, and the end support has the same structure as the side support; a flip-up side plate is provided on one side of the side support, and a number of hollow support blocks are arranged in an array on the side plate.
[0005] Preferably, the side support, end support, and side plate are integrally formed by pulp molding process.
[0006] Preferably, the connecting part includes a first folded part and a second folded part connected to each other. After the first folded part and the second folded part are folded, a hollow buffer cavity is formed inside, and the buffer cavity is connected to the receiving groove.
[0007] Preferably, the inner side of the end support is provided with a boss, and the two ends of the side plate are provided with recesses corresponding to the boss.
[0008] Preferably, the support block is provided with reinforcing ribs.
[0009] The beneficial effects of this utility model are: by replacing the traditional planar support structure with the support part on the outside of the side support and the hollow support block on the side plate, the strength of the inner support itself is enhanced and the external pressure is dispersed; combined with the flip-up end support and the side plate to form a multi-dimensional wrapping, the problem of damage to items caused by external pressure in traditional inner supports is effectively solved, and the reliability of packaging protection is improved. Attached Figure Description
[0010] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0011] Figure 1This is a schematic diagram of the anti-pressure inner support structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the structure of an anti-pressure inner support side support according to the present invention.
[0013] Figure 3 This is another structural schematic diagram of an anti-pressure inner support according to the present invention.
[0014] Figure 4 This is another structural schematic diagram of an anti-pressure inner support according to the present invention.
[0015] Figure 5 for Figure 4 A partial schematic diagram of point A in the middle.
[0016] The labels in the figure represent: 1. Side support; 2. Receiving groove; 3. Groove; 4. Support part; 5. Connecting part; 501. First folding part; 502. Second folding part; 503. Buffer cavity; 6. End support; 7. Side plate; 8. Support block; 9. Boss; 10. Recess; 11. Reinforcing rib. Detailed Implementation
[0017] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0018] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0019] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] See Figures 1 to 5As shown, the structure of this utility model is as follows: a pressure-resistant inner tray includes two opposing side trays 1. Each side tray 1 has a receiving groove 2, the contour of which matches the side profile of the packaged item. This tight fit prevents item displacement. The walls of the receiving groove 2 are provided with several grooves 3 spaced apart. The width and depth of the grooves 3 are greater than the receiving groove 2. The grooves 3 form raised support portions 4 on the outer side of the side tray 1. These support portions 4 are columnar or block-shaped and evenly distributed on the outer surface of the side tray 1. When external pressure acts on the inner tray, the support portions 4 distribute the external pressure to multiple contact points, preventing excessive local pressure. Simultaneously, the raised structure of the support portions 4 enhances the strength of the side tray 1, reducing deformation under external pressure. This enhances the side tray 1's resistance to deformation and forms a buffer fulcrum with the outer container during packaging. The two ends of the side tray 1 are connected to end trays via connecting portions 5. 6. The end support 6 has the same structure as the side support 1. The connecting part 5 adopts a movable connection design, allowing the end support 6 to flip relative to the side support 1, which facilitates the loading and unloading of items. The receiving groove 2 and the support part 4 of the end support 6 have the same structure as the side support 1. After flipping, they together with the side support 1 form complete protection around the item. One side of the side support 1 is provided with a flip-up side plate 7, which covers the top or bottom surface of the item after flipping. Several hollow support blocks 8 are arranged in an array on the side plate 7. When the side plate 7 is flipped to the closed state, the support blocks 8 contact the surface of the item. The elastic deformation characteristics of the hollow structure realize the buffer function: when external pressure is applied to the side plate 7, the thin-walled structure of the support block 8 undergoes elastic compression, absorbing and slowing down the transmission of impact force to the item. At the same time, the array distribution of the support blocks 8 makes the pressure evenly distributed on the surface of the item, avoiding damage to a certain part due to excessive pressure.
[0021] Furthermore, the side support 1, end support 6, and side panel 7 are integrally formed through pulp molding process, using biodegradable fiber materials such as waste paper pulp and bamboo fiber as raw materials. This solves the environmental pollution problem of traditional plastic inner trays being difficult to degrade from the source, which is in line with the development trend of green packaging and is suitable for scenarios with high environmental protection requirements, such as electronic products and food packaging. At the same time, the integral molding process eliminates the assembly gaps between components, and the connecting part 5 is formed synchronously with the main structure, avoiding the weak connection problem caused by traditional splicing methods, and significantly improving the compression resistance and tear resistance.
[0022] like Figure 2 , Figure 3 , Figure 5As shown, the connecting part 5 includes a first folding part 501 and a second folding part 502 connected to each other. After the first folding part 501 and the second folding part 502 are folded, a hollow buffer cavity 503 is formed inside. The buffer cavity 503 is connected to the receiving groove 2. Specifically, the first folding part 501 and the second folding part 502 are extension structures of the side support 1 and the end support 6, respectively. After being folded through a preset fold line, a hollow buffer cavity 503 is formed inside to accommodate the corners of the item. When external pressure is applied to the corners, the first folding part 501 and the second folding part 502 buffer the external impact force through the hollow area of the buffer cavity 503 to protect the corners of the item.
[0023] like Figure 2 , Figure 3 , Figure 5 As shown, the inner side of the end support 6 is provided with a boss 9, and the two ends of the side plate 7 are provided with recesses 10 corresponding to the boss 9. When the side plate 7 is flipped to the closed state, the boss 9 is embedded in the recesses 10 to form a snap-fit structure, thereby connecting the side plate 7 and the end support 6, preventing the side plate 7 from shaking during transportation, and enhancing the overall structural rigidity of the inner support.
[0024] like Figure 2 , Figure 3 , Figure 4 As shown, the support block 8 is provided with reinforcing ribs 11, which are cross-shaped or strip-shaped. The reinforcing ribs 11 are integrally formed with the support block 8, which significantly improves the compressive strength of the support block 8 without increasing the amount of material used. When external pressure is applied to the support block 8, the reinforcing ribs 11 will disperse the concentrated load and prevent the support block 8 from collapsing locally. At the same time, the hollow structure and the reinforcing ribs 11 work together to achieve the dual effect of support and buffering.
[0025] In practical use, firstly, one side of the item is inserted into the receiving groove 2 of a side support 1. The receiving groove 2 is used to fit the shape of the side of the item to achieve a tight fit and positioning. Then, another side support 1 with the same structure is placed in reverse so that its receiving groove 2 is inserted into the other side of the item. At this time, the side plates 7 of the two side supports 1 face the top and bottom surfaces of the item, respectively. Next, the end supports 6 at both ends of the side support 1 are flipped inward along the connecting part 5 so that the receiving groove 2 of the end support 6 fits against the end of the item. Through the support part 4 and the support part 4 on the outside of the side support 1, a four-dimensional support point is formed, completing the wrapping of both ends of the item. Finally, the side plates 7 of the two side supports 1 are flipped so that one side plate 7 covers the bottom surface of the item and the other side plate 7 covers the top surface of the item. The pressure on the top and bottom surfaces is evenly distributed by the array of support blocks 8. Finally, a three-dimensional protective structure is formed in which the side support 1 and the end support 6 surround the item and the side plates 7 cover the top and bottom surfaces, effectively resisting the squeezing and impact during transportation.
[0026] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.
Claims
1. A pressure-resistant inner support, characterized in that: It includes two opposing side supports (1), each side support (1) has a receiving groove (2) inside, and the groove wall of the receiving groove (2) is provided with a number of grooves (3) at intervals, and the grooves (3) form a raised support part (4) on the outside of the side support (1); the two ends of the side support (1) are connected to end supports (6) through connecting parts (5), and the structure of the end supports (6) is the same as that of the side support (1); one side of the side support (1) is provided with a flip-up side plate (7), and a number of hollow support blocks (8) are arranged in an array on the side plate (7).
2. The inner support according to claim 1, characterized in that: The side support (1), end support (6) and side plate (7) are integrally formed by pulp molding process.
3. The inner support according to claim 1, characterized in that: The connecting part (5) includes a first folding part (501) and a second folding part (502) connected to each other. After the first folding part (501) and the second folding part (502) are folded, a hollow buffer cavity (503) is formed inside. The buffer cavity (503) is connected to the receiving groove (2).
4. The inner support according to claim 1, characterized in that: The inner side of the end support (6) is provided with a boss (9), and the two ends of the side plate (7) are provided with recesses (10) corresponding to the boss (9).
5. The inner support according to claim 1, characterized in that: The support block (8) is provided with reinforcing ribs (11).