A concealed pin structure for aluminum single-panel slots

By using concealed nail connectors between aluminum panels and aluminum keel, the aging and deformation problems at the connection points of aluminum panels are solved, achieving stable connection and improved resistance to deformation, thereby enhancing the stability and visual effect of building decoration.

CN224579004UActive Publication Date: 2026-07-31SHANDONG LINGHANG BUILDING MATERIALS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LINGHANG BUILDING MATERIALS TECH CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The screw/bolt joints at the connection between the existing aluminum panels and the keel are prone to aging and deformation, resulting in increased shaking and noise of the decorative panels, as well as poor visual effect.

Method used

The concealed nail connector with built-in design includes a U-shaped plate and buckle protrusions. It is connected by double-layer sockets and slots of aluminum single plate and aluminum keel to form a stable double-layer connection plane. Combined with drum nails and positioning grooves, it improves the resistance to deformation.

Benefits of technology

It achieves a stable connection between aluminum panels and aluminum keel, reduces seams, improves stability and reliability, reduces the shaking and noise of decorative panels, and enhances resistance to deformation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of aluminum single-panel, and proposes a hidden nail structure for aluminum single-panel slots, including an aluminum single-panel and an aluminum keel. A hidden nail connector is provided between the aluminum single-panel and the aluminum keel. The aluminum single-panel has a square structure with two pairs of sockets on each of its four sides. Each pair of sockets includes two sockets spaced vertically apart. The aluminum keel has an asymmetrical cross-section and a pair of slots on each side. The slots have locking interfaces. The hidden nail connector includes a U-shaped plate. Each side of the U-shaped plate corresponds to a set of sockets and slots, and the end of the U-shaped plate has a buckle protrusion that mates with the locking interfaces. This utility model establishes a connection between the aluminum single-panel and the aluminum keel by using a built-in hidden nail connector. The resulting connection plane has two layers, resulting in a smaller seam between the aluminum single-panel and the aluminum keel. It has high stability and reliability, and strong resistance to deformation, making it suitable for large-scale promotion.
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Description

Technical Field

[0001] This utility model belongs to the field of aluminum single-panel, and particularly relates to a hidden nail structure for aluminum single-panel slots. Background Technology

[0002] Aluminum single-layer panels are a high-performance building decoration material with aluminum alloy as the base material. They are widely used in the construction field, such as the exterior walls of high-rise buildings and villas. They have strong weather resistance and can withstand various harsh climatic conditions. Through different surface treatments and shapes, they can present a variety of visual effects such as modernity and simplicity, thereby improving the overall quality of the building.

[0003] Currently, when aluminum panels are used as architectural decorative panels, they are usually fixed to a keel. For cases where concealed screws are required, a panel-sealing and concealed-screw design is employed to improve the visual appeal of the decorative surface. However, using screws / bolts at the connection points between the aluminum panels and the keel results in relatively high shear forces at these points, potentially leading to aging and deformation. Furthermore, over time, this can increase the frequency of swaying and noise levels of the decorative aluminum panels. Utility Model Content

[0004] This utility model addresses the aforementioned technical problems in the decorative fixing of aluminum single panels by proposing a concealed nail structure for aluminum single panels with reasonable design, high stability and reliability, and strong resistance to deformation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides an aluminum single-panel slot concealed nail structure, including an aluminum single-panel and an aluminum keel. A concealed nail connector is provided between the aluminum single-panel and the aluminum keel. The aluminum single-panel has a square structure and two pairs of sockets are provided on each of its four sides. Each pair of sockets includes two sockets spaced vertically apart. The aluminum keel has an axle-shaped cross-section and a pair of slots are provided on each of its two sides. A locking interface is provided in the slot. The concealed nail connector includes a U-shaped plate. Each side of the U-shaped plate corresponds to a set of sockets and a slot. The end of the U-shaped plate is provided with a buckle protrusion that cooperates with the locking interface.

[0006] Preferably, the aluminum panel includes a pyramidal top plate portion with several through holes, a first skirt portion at the bottom of the top plate portion, a second skirt portion at the bottom of the first skirt portion with a smaller diameter than the first skirt portion, and the insertion port is provided on the second skirt portion.

[0007] Preferably, the side of the first skirt panel is provided with a plurality of drum nails distributed along its length, and the side of the aluminum keel is provided with positioning grooves corresponding to the drum nails.

[0008] Preferably, the length of the U-shaped plate is greater than 8cm.

[0009] Preferably, the two buckle protrusions at the end of the U-shaped plate are an upper buckle and a lower buckle, with the upper buckle protruding upwards and the lower buckle protruding downwards.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides an aluminum panel slot concealed nail structure, which establishes a connection between the aluminum panel and the aluminum keel by using a built-in concealed nail connector. The resulting connection plane has two layers and minimizes the gap between the aluminum panel and the aluminum keel. It has high stability and reliability and strong resistance to deformation, making it suitable for large-scale promotion. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 An exploded view of an aluminum single-panel slot concealed nail structure provided for an embodiment; Figure 2 A front view of an aluminum single-panel slot concealed nail structure provided for an embodiment; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 A working diagram of a concealed screw structure for an aluminum single-panel slot is provided for an embodiment; In the above figures: 1. Aluminum single panel; 11. Insert; 12. Top plate; 13. Through hole; 14. First skirt panel; 15. Second skirt panel; 16. Drum nail; 2. Aluminum keel; 21. Slot; 22. Positioning groove; 3. Concealed nail connector; 31. U-shaped plate; 32. Buckle protrusion; 321. Upper buckle; 322. Lower buckle. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0015] Examples, such as Figures 1-4 As shown, the present invention provides an aluminum single-panel slot concealed nail structure, including an aluminum single-panel 1 and an aluminum keel 2. A concealed nail connector 3 is provided between the aluminum single-panel 1 and the aluminum keel 2. The aluminum single-panel 1 has a square structure and two pairs of sockets 11 are provided on each of its four sides. Each pair of sockets 11 includes two sockets 11 that are spaced apart vertically. The aluminum keel 2 has an axle-shaped cross section and a pair of slots 21 are provided on both sides. A card interface is provided in the slot 21. The concealed nail connector 3 includes a U-shaped plate 31. A set of sockets 11 and a slot 21 are respectively provided on both sides of the U-shaped plate 31. A buckle protrusion 32 that cooperates with the card interface is provided at the end of the U-shaped plate 31.

[0016] Specifically, the aluminum panel 1 is matched with the aluminum keel 2 on the side. The connection between the aluminum panel 1 and the aluminum keel 2 is established by using a built-in concealed nail connector 3, which abandons the screw / bolt connection method commonly used in the existing technology. This can form a double-layer connection plane and make the joint between the aluminum panel 1 and the aluminum keel 2 smaller. At the same time, each layer of the connection plane has 4 plate-shaped contact surfaces, which has high stability and reliability, good shear resistance, and strong deformation resistance, which helps to ensure that this building decoration wall panel has a long service life.

[0017] Furthermore, the aluminum single panel 1 provided by this utility model includes a pyramidal top plate portion 12, on which a plurality of through holes 13 are provided. A first skirt portion 14 is provided at the bottom of the top plate portion 12, and a second skirt portion 15 with a smaller diameter than the first skirt portion 14 is provided at the bottom of the first skirt portion 14. An insertion port 11 is provided on the second skirt portion 15. The through holes 13 serve two purposes: firstly, to provide ventilation and reduce the load on the entire building decorative wall panel; secondly, to facilitate the insertion of the concealed nail connector 3 into its designed connection position using a special tool, such as by holding a screwdriver and passing the screwdriver tip through the through hole 13 and applying leverage to the end of the concealed nail connector 3 until the snap-fit ​​protrusion 32 engages in the snap-fit ​​interface. Since there is a certain gap between the inner side of the building decorative wall panel and the solid wall, the concealed nail connector 3 can also be installed from the inner side of the aluminum single panel 1 with the assistance of decorative construction auxiliary equipment. The top plate portion 12 can be used as the entire... The architectural decorative wall panel provides a decorative effect that is different from that of a flat surface; the edge of the top panel 12 is flush with the surface of the aluminum keel 2, so that the first skirt panel 14 and the second skirt panel 15 are concealed in the U-shaped area formed by the surrounding aluminum keel 2; the concealed nail connector 3 is installed on the second skirt panel 15 and connected to the aluminum keel 2. The reasonable gap between the second skirt panel 15 and the aluminum keel 2 can provide a corresponding buffer gap for the concealed nail connector 3, which can produce a certain buffering effect under the action of external wind force, and can extend the actual service life of the entire architectural decorative wall panel to a certain extent.

[0018] To improve the fit between the aluminum panel 1 and the aluminum keel 2, the first skirt panel 14 of this invention is provided with a plurality of drum nails 16 distributed along its length on its side, and the aluminum keel 2 is provided with positioning grooves 22 corresponding to the drum nails 16 on its side. The surface of the drum nail 16 is partially spherical, and its protrusion height is no more than 1cm. Correspondingly, the positioning groove 22 adopts an inwardly concave curved surface. The drum nail 16 can cooperate with the positioning groove 22 during the process of pressing the aluminum panel 1 into the aluminum keel 2 to achieve pre-positioning, which facilitates the corresponding assembly operation of the concealed nail connector 3.

[0019] To improve the shear resistance of the concealed nail connector 3, the length of the U-shaped plate 31 provided by this utility model is greater than 8cm, and the length of the insertion port 11 matches the length of the U-shaped plate 31, thereby obtaining a sufficiently long shear arm to ensure the actual connection performance of the concealed nail positioning component; for the snap-fit ​​interface, its length can be slightly larger, as long as it can establish a horizontal / vertical anti-detachment connection with the snap-fit ​​protrusion.

[0020] To improve the tension between the U-shaped plate 31 and the aluminum keel 2, the present invention provides two buckle protrusions 32 at the end of the U-shaped plate 31, namely an upper buckle 321 and a lower buckle 322. The upper buckle 321 protrudes upward, and the lower buckle 322 protrudes downward. By forming two tensile forces in different directions, the U-shaped plate 31 can maintain a good tension relationship with the slot 21 under the action of external force, and will not easily disengage.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A concealed screw structure for an aluminum panel slot, comprising an aluminum panel and an aluminum keel, wherein a concealed screw connector is provided between the aluminum panel and the aluminum keel, characterized in that, The aluminum panel has a square structure and two pairs of sockets on each of its four sides. Each pair of sockets includes two sockets spaced apart vertically. The aluminum keel has an asymmetrical cross-section and a pair of slots on each side. Each slot has a card interface. The concealed nail connector includes a U-shaped plate. Each side of the U-shaped plate corresponds to a set of sockets and slots. The end of the U-shaped plate has a buckle protrusion that engages with the card interface.

2. The aluminum single-panel slot concealed nail structure according to claim 1, characterized in that, The aluminum panel includes a pyramidal top plate with several through holes, a first skirt plate at the bottom of the top plate, a second skirt plate at the bottom of the first skirt plate with a smaller diameter than the first skirt plate, and an insertion port on the second skirt plate.

3. The aluminum single-panel slot concealed nail structure according to claim 2, characterized in that, The side of the first skirt panel is provided with a plurality of drum nails distributed along its length, and the side of the aluminum keel is provided with positioning grooves corresponding to the drum nails.

4. The aluminum single-panel slot concealed nail structure according to claim 3, characterized in that, The length of the U-shaped plate is greater than 8cm.

5. The aluminum single-panel slot concealed nail structure according to claim 4, characterized in that, The two buckle protrusions at the end of the U-shaped plate are an upper buckle and a lower buckle, with the upper buckle protruding upwards and the lower buckle protruding downwards.