A high-strength top wall honeycomb panel

Abstract

The present invention provides a high-strength top wall honeycomb panel, comprising a panel, a back panel and a honeycomb core, wherein a cavity is formed between the back panel and the panel, and the honeycomb core is arranged in the cavity, and is characterized in that: the panel has an upward panel folding edge, the back panel has an upward back panel folding edge, the panel folding edge is outside the back panel folding edge, the panel folding edge is in contact with the back panel folding edge and is provided with a protrusion that is engaged with the keel, and the top of the back panel folding edge or / and the top of the panel folding edge are folded over so that the back panel folding edge and the panel folding edge are in contact and fixed. The present invention folds the panel folding edge or / and the back panel folding edge and makes them in contact and fixed, and even when the thickness of the panel and the back panel is relatively thin, it can ensure the connection strength of the honeycomb panel and the keel, saving costs; the edge of the honeycomb core is in contact with the inner wall of the panel folding edge, so that the root of the panel folding edge has a support point, thereby improving the bending strength of the root of the panel folding edge.

Description

Technical Field

[0001] The invention relates to the technical field of honeycomb panels, in particular to a high-strength top wall honeycomb panel. Background Art

[0002] In existing technology, thick aluminum plates are often used to make honeycomb panels. The aluminum panel consists of a panel and two side hems. The hems are used to clamp and secure the triangular keel. If the hems are too thin, the clamping force is too weak, the clamping is not strong enough, and it is easy to fall off. To ensure that the top wall panel and the triangular keel are firmly connected after assembly, the hems need to be thick enough (about 0.5mm). However, the panel and hems of existing integrated aluminum panel structures are the same thickness, which is expensive. To reduce costs, the aluminum panel thickness can only be reduced, but this will reduce the strength of the hems.

[0003] In response to the above problems, China's invention patent: A kind of aluminum surface with double-layer folded honeycomb panel for top wall

[0004] The board, publication number CN215167135 U, announcement date: 2021.12.14, discloses a panel, symmetrically arranged on both sides of the panel and bent upward, the folded edge is a double-layer structure, including an outer edge and an inner edge, the outer edge is formed by extending and bending upward from both sides of the panel, the inner edge is formed by extending and bending downward from the top of the outer edge, the top of the inner edge has a bent protrusion, the protrusion is in an inverted L shape, the two ends of the protrusion abut against the inner wall of the outer edge, forming a triangular cavity between the two. By bending and bonding the thin aluminum plate into a double-layer aluminum structure, the strength of the shape is increased, and the two sides can use aluminum plates that are half thinner than those on the market to achieve the same effect and strength, thereby reducing the material cost of the aluminum plate by half. The above structure has a good effect and solves the problem of insufficient folding strength of aluminum plates. However, during use, the following problems exist: there is no support point at the root of the folded edge, the outer edge is bent at 90°, and the inner edge also has no support. During the installation of the honeycomb panel, it is necessary to push the folded edge upwards and press the raised part into the keel. The root of the folded edge is easy to bend and deform. Moreover, during transportation, the folded edge of this structure is easily deformed by pressure, which affects the installation efficiency and quality. Summary of the Invention

[0005] In response to the above problems, the present invention provides a high-strength top wall honeycomb panel. The present invention folds the panel edge and / or the back panel edge and makes them fit and fixed. Even when the thickness of the panel and the back panel is relatively thin, the connection strength of the honeycomb panel and the keel can be ensured, saving costs; the edge of the honeycomb core is abutted against the inner wall of the panel edge, so that the root of the panel edge has a support point, thereby improving the bending strength of the root of the panel edge; the lower part of the back panel edge is provided with a bevel, which is convenient for compounding, and at the same time, a closed triangle is formed between the panel edge, the top of the honeycomb core and the bevel, further improving the bending strength of the panel edge.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A high-strength ceiling honeycomb panel comprises a panel, a back panel and a honeycomb core, wherein a cavity is formed between the back panel and the panel, and the honeycomb core is arranged in the cavity, the panel has an upward panel folded edge, the back panel has an upward back panel folded edge, the panel folded edge is outside the back panel folded edge, the panel folded edge is in contact with the back panel folded edge and is provided with a convex portion that is clamped to the keel, and the top of the back panel folded edge or / and the top of the panel folded edge are folded over so that the back panel folded edge and the panel folded edge are in contact and fixed.

[0008] Preferably, the convex portion is formed by bending the panel fold and the back panel fold after fitting them together, and the rear side of the convex portion is a groove, and the folded back panel fold and / or the end of the panel fold are hidden in the groove.

[0009] Preferably, the edge of the honeycomb core abuts against the inner wall of the panel fold.

[0010] Preferably, a bevel is provided at the lower portion of the back panel fold.

[0011] Preferably, the top of the back panel fold is folded over and covers the panel fold.

[0012] Preferably, the top of the panel fold is folded over and covers the back panel fold.

[0013] Preferably, the top of the back panel folded edge is folded together with the top of the panel folded edge.

[0014] Preferably, the panel and the honeycomb core, and the back panel and the honeycomb core are bonded together by glue.

[0015] Preferably, the thickness of the back plate and the front plate are both 0.25-0.45 mm.

[0016] Beneficial effects of the present invention:

[0017] 1. Fold the panel edge and / or the back panel edge and make them fit together and fixed. Even when the thickness of the panel and back panel is thin, the connection strength between the honeycomb panel and the keel can be ensured, saving costs.

[0018] 2. The edge of the honeycomb core abuts against the inner wall of the panel fold, so that the root of the panel fold has a support point, thereby improving the bending strength of the root of the panel fold;

[0019] 3. A bevel is provided at the lower part of the back panel fold to facilitate compounding, and at the same time form a closed triangle between the panel fold, the top of the honeycomb core and the bevel, further improving the bending strength of the panel fold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a perspective view of Example 1;

[0021] Figure 2 is an exploded schematic diagram of Example 1;

[0022] Figure 3 It is a partial structural diagram of Example 1;

[0023] Figure 4 It is a partial structural diagram of Example 2;

[0024] Figure 5 It is a schematic diagram of the partial structure of Example 3. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is described below with reference to the accompanying drawings and embodiments.

[0026] Example 1: Reference Figures 1 to 3 A high-strength top wall honeycomb panel includes a panel 1, a back panel 2 and a honeycomb core 3. The back panel 2 is placed above the panel 1. A cavity is formed between the back panel 2 and the panel 1. The honeycomb core 3 is arranged in the cavity. The panel 1 and the honeycomb core 3, as well as the back panel 2 and the honeycomb core 3, are bonded together by glue. The panel 1 has an upward panel fold 4, and the back panel 2 has an upward back panel fold 5. In this embodiment, the panel fold 4 and the back panel fold 5 both have four sides, and a two-side structure is not excluded. The panel fold 4 is on the outside of the back panel fold 5. The panel fold 4 is attached to the back panel fold 5 and is provided with a protrusion 6 that is clamped to the keel. The protrusion direction of the protrusion 6 is toward the inside of the honeycomb panel. When installing the honeycomb panel, two adjacent honeycomb panels are attached, and then the two symmetrical protrusions 6 are clamped into the keel to lift the honeycomb panel. The top of the back panel fold 5 is folded over and wraps the panel fold 4, so that the back panel fold 5 and the panel fold 4 are fitted and fixed. By wrapping the back panel fold 5 around the panel fold 4, the connection strength between the honeycomb panel and the keel is improved.

[0027] Specifically, the convex portion 6 is formed by bending the panel fold 4 and the back panel fold 5 together after they are fitted together. The rear side of the convex portion 6 is a groove 7. The end of the folded back panel fold 5 is hidden in the groove 7 to avoid scratching workers.

[0028] Specifically, the edge of the honeycomb core 3 abuts against the inner wall of the panel fold 4 , so that the root of the panel 1 has a support point to rely on and is not easy to bend, thereby improving the bending strength of the panel fold 4 .

[0029] Specifically, a bevel 8 is provided at the lower portion of the back panel fold 5 , so that a closed triangle is formed between the panel fold 4 , the top of the honeycomb core 3 and the bevel 8 , further improving the bending strength of the panel fold 4 .

[0030] Specifically, the thickness of the back plate 2 and the panel 1 are both 0.25-0.45 mm. When the thickness of the panel 1 and the back plate 2 are both thin, the material cost can be greatly reduced.

[0031] Example 2: Reference Figure 4 Compared with Example 1, the difference is that the top of the panel folding edge 4 is folded over and covers the back panel folding edge 5, so that the back panel folding edge 5 and the panel folding edge 4 are fitted and fixed. By covering the back panel folding edge 5 with the panel folding edge 4, the connection strength between the honeycomb panel and the keel is improved, and the panel folding edge 4 does not need to be hidden in the groove 7 after being folded.

[0032] Example 3: Reference Figure 5 Compared with Example 1, the difference is that the top of the back panel folding edge 5 is folded together with the top of the panel folding edge 4, so that the back panel folding edge 5 and the panel folding edge 4 are fitted and fixed, thereby improving the connection strength between the honeycomb panel and the keel. After the back panel folding edge 5 and the panel folding edge 4 are folded together, they are hidden in the groove 7.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as limiting the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0035] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A high-strength ceiling honeycomb panel, comprising a front panel, a back panel, and a honeycomb core, wherein a cavity is formed between the back panel and the front panel, and the honeycomb core is disposed in the cavity, characterized in that: The panel has an upward panel folding edge, and the back panel has an upward back panel folding edge. The panel folding edge is on the outside of the back panel folding edge. The panel folding edge is in contact with the back panel folding edge and is provided with a protrusion that is clamped with the keel. After the top of the panel folding edge is folded, the back panel folding edge and the panel folding edge are in contact and fixed, and the panel folding edge wraps the back panel folding edge; or after the top of the back panel folding edge and the top of the panel folding edge are folded together, the back panel folding edge and the panel folding edge are in contact and fixed.

2. A high-strength top wall honeycomb panel according to claim 1, characterized in that: The convex portion is formed by bending the panel fold and the back panel fold after they are fitted together. The rear side of the convex portion is a groove, and the folded back panel fold and / or the end of the panel fold are hidden in the groove.

3. The high-strength top wall honeycomb panel according to claim 1, characterized in that: The edge of the honeycomb core abuts against the inner wall of the panel fold.

4. The high-strength top wall honeycomb panel according to claim 3, characterized in that: The lower part of the back plate folding edge is provided with a bevel edge.

5. The high-strength top wall honeycomb panel according to claim 1, characterized in that: The top of the back panel fold is folded over and covers the panel fold.

6. The high-strength top wall honeycomb panel according to claim 1, characterized in that: The top of the panel fold is folded over and covers the back panel fold.

7. The high-strength top wall honeycomb panel according to claim 1, characterized in that: The top of the back panel folded edge is folded together with the top of the panel folded edge.

8. A high-strength top wall honeycomb panel according to any one of claims 5 to 7, characterized in that: The panel and the honeycomb core, and the back panel and the honeycomb core are bonded together by glue.

9. A high-strength top wall honeycomb panel according to any one of claims 5 to 7, characterized in that: The thickness of the back plate and the front plate are both 0.25-0.45 mm.

10. A high-strength ceiling honeycomb panel, comprising a front panel, a back panel, and a honeycomb core, wherein a cavity is formed between the back panel and the front panel, and the honeycomb core is disposed in the cavity, characterized in that: The panel has an upward panel fold, and the back panel has an upward back panel fold. The panel fold is on the outside of the back panel fold. The panel fold is in contact with the back panel fold and is provided with a convex portion that is clamped with the keel. After the top of the back panel fold is folded, the back panel fold and the panel fold are in contact and fixed, and the back panel fold wraps the panel fold. The lower part of the back panel fold is provided with a bevel.

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