A multi-layer aramid honeycomb panel

Abstract

The utility model belongs to the technical field of composite material, especially relate to a multilayer aramid fiber honeycomb board, including upper panel, middle panel and lower panel, the middle panel includes first connecting layer, second connecting layer and third connecting layer, the deformation of extruding column in first connecting layer under the impact of action, its inside filling layer further compression, form buffer structure, the semicircular compression column in second connecting layer can produce the deformation of greater amplitude when being forced by the clearance of activity between connecting layer, this multilayer, the buffer mechanism of many structures, avoided the problem of local stress concentration caused by the lack of buffer space, compared with prior art, the utility model improves the buffer performance of honeycomb board whole.

Description

Technical Field

[0001] This utility model relates to the field of composite material technology, and more specifically, to a multilayer aramid honeycomb panel. Background Technology

[0002] Aramid fiber is a synthetic fiber with excellent properties such as high strength, high modulus, high temperature resistance, and corrosion resistance. Aramid honeycomb panels are made by applying aramid fiber to honeycomb panel structures, combining the excellent properties of aramid fiber with the lightweight characteristics of honeycomb structures.

[0003] For example, the honeycomb panel structure disclosed in application publication number CN111186177A consists of an upper panel, a lower panel, and a honeycomb core located between the upper and lower panels. The honeycomb core is composed of corrugated plates and rigid hollow spheres. The corrugated plates are arranged in parallel and form a regular hexagonal honeycomb grid between each pair of corrugated plates. The rigid hollow spheres are fixed in the regular hexagonal honeycomb grid, and the spherical surface of the rigid hollow spheres is tangent to the inner wall of the regular hexagonal honeycomb grid.

[0004] As described above, when the aramid honeycomb panel is impacted, the rigid hollow spheres and corrugated plates in the honeycomb core of the patent are relatively fixed, lacking effective buffer space and deformation margin. The impact energy is difficult to disperse, resulting in local stress concentration in the honeycomb panel, which reduces the overall buffering performance of the honeycomb panel and affects its service life. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multilayer aramid honeycomb panel that improves the overall buffering performance of the honeycomb panel.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A multilayer aramid honeycomb panel includes a top panel, a middle panel, and a bottom panel. The middle panel is positioned between the top panel and the bottom panel. The middle panel includes a first connecting layer, a second connecting layer, and a third connecting layer. The second connection layer is placed between the first and third connection layers. The second connecting layer is fixed to both the first connecting layer and the third connecting layer. The first connecting layer has several slots, each containing an extrusion column. The outer wall of the extrusion column is fixed to the inner wall of the groove. The second connecting layer contains several compression columns fixed to it. These compression columns are semi-circular. There is a gap between the compression column and the second connecting layer.

[0007] The present invention is further configured such that the third connecting layer has a cavity.

[0008] The present invention is further configured such that: the extrusion column has a first cavity, and a filling layer is provided in the first cavity, the filling layer being fixedly connected to the inner wall of the first cavity.

[0009] The present invention is further configured such that the slot is inverted triangular in shape.

[0010] The present invention is further configured such that: a plurality of positioning posts are provided in the cavity, and both ends of the positioning posts are fixed to the inner wall of the cavity.

[0011] The present invention is further configured such that: the positioning column has a second cavity, and there is a gap between the positioning column and the inner wall of the cavity.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are as follows: Through the synergistic design of its multi-layered structure and components, the aramid honeycomb panel's cushioning performance and structural stability under impact are significantly improved. The compression columns and their internal filling layer in the first connecting layer deform under stress, effectively absorbing the impact. The semi-circular compression columns in the second connecting layer, combined with the movable gaps, provide additional deformation space, further dissipating the impact force. The chamber structure within the third connecting layer enhances overall flexibility, preventing stress concentration and dispersing the impact. This multi-level cushioning mechanism works together to significantly improve the honeycomb panel's impact resistance and durability. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0014] Top panel 1, middle panel 2, bottom panel 3, slot 4, extrusion column 5, compression column 6, movable gap 7, chamber 8, first cavity 9, filling layer 10, first connecting layer 201, second connecting layer 202, third connecting layer 203, positioning column 801, second cavity 802. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] like Figure 1 As shown, the multilayer aramid honeycomb panel includes an upper panel 1, a middle panel 2, and a lower panel 3. The middle panel 2 is bonded and fixed between the upper panel 1 and the lower panel 3. The middle panel 2 includes a first connecting layer 201, a second connecting layer 202, and a third connecting layer 203. The second connecting layer 202 is bonded and fixed between the first connecting layer 201 and the third connecting layer 203.

[0018] The first connecting layer 201 has a slot 4, which is in the shape of an inverted triangle. This inverted triangle slot 4 design can better fix the extrusion column 5 and at the same time disperse the force on the extrusion column 5 to a certain extent. The extrusion column 5 is in the slot 4, and the outer wall of the extrusion column 5 is fixed to the slot 4. The extrusion column 5 has a first cavity 9, and the first cavity 9 has a filling layer 10, which is fixed to the inner wall of the first cavity 9.

[0019] When impacted, the compression column 5 deforms, and the internal filling layer 10 is further compressed, thereby absorbing some of the impact energy and reducing the direct impact of the impact force on other parts of the honeycomb panel.

[0020] The third connecting layer 203 has a cavity 8. The design of the cavity 8 increases the flexibility of the honeycomb panel, enabling it to better adapt to deformation when subjected to external forces and avoid breakage due to excessive rigidity. At the same time, the structure of the cavity 8 helps to disperse impact energy throughout the entire honeycomb panel structure, rather than concentrating it in a local area, thereby improving the impact resistance and overall stability of the honeycomb panel.

[0021] The chamber 8 contains multiple positioning posts 801. Both ends of the positioning posts 801 are fixed to the inner wall of the chamber. The positioning posts 801 have a second cavity 802. There is a gap between the positioning posts 801 and the inner wall of the chamber 8. The positioning posts 801 will be compressed, so that the area of ​​the gap becomes smaller and smaller, which can absorb impact energy and reduce the impact force.

[0022] Both the extrusion column 5 and the compression column 6 are made of silicone, which can undergo large deformation when subjected to external force. This not only helps to absorb and release impact energy, but also ensures the performance stability of the honeycomb panel after multiple impacts.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multilayer aramid honeycomb panel, characterized in that, It includes a top panel (1), a middle panel (2), and a bottom panel (3). The middle panel (2) is positioned between the upper panel (1) and the lower panel (3). The middle panel (2) includes a first connecting layer (201), a second connecting layer (202) and a third connecting layer (203). The second connection layer (202) is placed between the first connection layer (201) and the third connection layer (203). The second connecting layer (202) is fixed to both the first connecting layer (201) and the third connecting layer (203). The first connecting layer (201) has several slots (4), and each slot (4) has an extrusion column (5). The outer wall of the extrusion column (5) is fixed to the inner wall of the groove (4). The second connecting layer (202) has several compression columns (6) fixed to the second connecting layer (202). The compression columns (6) are semi-circular, and there is an movable gap (7) between the compression columns (6) and the second connecting layer (202).

2. The multilayer aramid honeycomb panel according to claim 1, characterized in that, The third connecting layer (203) has a chamber (8).

3. The multilayer aramid honeycomb panel according to claim 1, characterized in that, The extrusion column (5) has a first cavity (9), and a filling layer (10) is provided inside the first cavity (9). The filling layer (10) is fixedly connected to the inner wall of the first cavity (9).

4. The multilayer aramid honeycomb panel according to claim 1, characterized in that, The slot (4) is in the shape of an inverted triangle.

5. A multilayer aramid honeycomb panel according to claim 2, characterized in that, The chamber (8) is provided with several positioning posts (801), and both ends of the positioning posts (801) are fixed to the inner wall of the chamber (8).

6. A multilayer aramid honeycomb panel according to claim 5, characterized in that, The positioning post (801) has a second cavity (802), and there is a gap between the positioning post (801) and the inner wall of the cavity (8).

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