Hidden connection structure of diamond decorative grating

Abstract

The application relates to the technical field of building curtain wall decoration, and particularly discloses a hidden connecting structure of a rhombic decorative grid, which comprises vertical steel furring, U-shaped fasteners, connecting piece supports, toothed groove cylinders, toothed fasteners and aluminum alloy grid profiles. The connecting piece supports and aluminum plate pieces are clamped in the U-shaped fasteners and fixed. The toothed groove cylinders are externally provided with vertical racks, and the two ends are provided with internal thread holes. The toothed fasteners are composed of left and right fasteners, the vertical toothed grooves on the inner sides of the toothed fasteners are engaged with the toothed groove cylinders, and the toothed groove cylinders are connected through bolts arranged in wide grooves, the wide grooves provide horizontal adjustment allowance to realize angle fine adjustment. The grid profiles are fixed through bolts and the left and right fasteners. The structure realizes the effects of neat grid appearance, high installation precision, stable structure and convenient construction through the hidden design and toothed engagement adjustment.

Description

Technical Field

[0001] This invention relates to the field of building curtain wall decoration technology, and more specifically, to a hidden connection structure for a diamond-shaped decorative grille. Background Technology

[0002] Diamond-patterned metal curtain walls are widely used in the facade design of various high-end buildings due to their simple and elegant decorative effect. Currently, the industry mainly uses two connection methods for diamond-patterned grilles: traditional exposed connections and simple plug-in connections, both of which have several technical drawbacks. 1. Poor appearance and decoration: The exposed bolts, rivets and other connectors of the open-ended connection are directly exposed on the surface of the grille, which destroys the simple and clean design style of the diamond grille and affects the visual unity of the building facade; although some plug-in connections weaken the connectors, uneven gaps are prone to occur at the splicing points, which also reduces the decorative texture.

[0003] 2. Difficulty in angle adjustment: Most existing grid units are welded in the factory and then transported and hoisted as a whole. The connection angles between the grid and the wall, and between grids themselves, are fixed and cannot be fine-tuned according to on-site installation errors. Once an installation deviation occurs, it is necessary to re-cut or re-weld, which is not only inefficient but also damages the structural integrity of the grid.

[0004] 3. Insufficient installation stability: Traditional plug-in connections rely solely on the friction between profiles for fixation, lacking an effective meshing and positioning structure. Under external forces such as wind and earthquakes, they are prone to loosening and displacement. Furthermore, the generally large spacing between grille hanging points further exacerbates the risk to structural stability.

[0005] 4. Poor construction adaptability: The existing structure has extremely high requirements for on-site hoisting precision. Dimensional errors of the grid units and deviations in structural flatness will lead to installation difficulties, increasing construction costs and time, and making it difficult to adapt to the needs of large-scale standardized construction.

[0006] These problems severely restrict the application of diamond-shaped decorative grilles in high-end buildings, failing to meet the multiple stringent requirements of buildings for decorative quality, structural safety, and construction efficiency. Summary of the Invention

[0007] In view of the above-mentioned technical problems in related technologies, the present invention provides a hidden connection structure for a diamond-shaped decorative grille, which can solve the above problems.

[0008] To achieve the above-mentioned technical objectives, the technical solution of the present invention is implemented as follows: A concealed connection structure for a diamond-shaped decorative grille includes vertical steel keels, horizontal steel keels, aluminum plates, U-shaped fasteners, connector supports, toothed fasteners, and aluminum alloy grille profiles. The U-shaped fasteners are fixed to the surface of the vertical steel keels by screws A. One end of the aluminum plate has a folded edge. Both the connector support and the folded edge of the aluminum plate are embedded inside the U-shaped fastener. A screw B is installed through one side of the U-shaped fastener, passing through the folded edge of the aluminum plate and being fixedly connected to the connector support. One end is fixedly connected to the toothed cylinder via a protruding post. The outer wall of the toothed cylinder is integrally formed with several vertical toothed bars. Both ends of the toothed cylinder are provided with internal threaded holes. The toothed fastener includes a left fastener and a right fastener. The opposite surfaces of the left fastener and the right fastener are provided with vertical toothed grooves that mesh with the outer wall of the toothed cylinder. Both the left fastener and the right fastener are provided with wide grooves. Bolts C that are threaded into the internal threaded holes are inserted inside the wide grooves. Several bolts D are inserted at the end of the left fastener and the right fastener facing the aluminum alloy grating profile.

[0009] Furthermore, both the left and right fasteners have arc grooves on their opposite surfaces, vertical toothed grooves are formed on the surface of the arc grooves, and both the left and right fasteners have vertical cavities for weight reduction. Both the left and right fasteners also have through holes that are horizontally aligned with bolt D.

[0010] Furthermore, bolt D includes a screw head and a screw shank. The screw head of bolt D is located in the cavity of the left fastener and the right fastener, and the screw shank passes through the cavity of the left fastener and the screw shank is threadedly connected to the aluminum alloy grating profile.

[0011] Furthermore, both the left and right fasteners have clearance grooves for clearance protrusions at the ends facing the connector support, and both the left and right fasteners have Z-shaped interfaces integrally formed at the ends facing away from the connector support.

[0012] Furthermore, the width of the wide groove is 5 to 10 times the diameter of the C-thread section of the bolt.

[0013] Furthermore, when the connector support is embedded in the U-shaped fastener, the outer surface of the connector support is flush with the outer surface of the aluminum plate.

[0014] The beneficial effects of this invention are: Optimize the appearance: The connectors are integrated into the grille structure through a hidden design, keeping the facade simple and highlighting the overall design of the diamond grille.

[0015] Improved installation adaptability: The toothed profile supports small-angle fine-tuning, which can adapt to deviations between the installation site and the base layer, reduce on-site cutting or welding, and improve installation accuracy.

[0016] Enhanced structural stability and construction efficiency: Toothed meshing and double fixing improve resistance to displacement, meeting the needs of large-span installation; at the same time, the prefabrication of units in the factory and the simplification of on-site assembly help to shorten the construction period and reduce construction difficulty. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] Figure 1 This is an exploded view of the hidden connecting structure of the diamond-shaped decorative grille; Figure 2 It is an assembly drawing of the hidden connection structure of the diamond-shaped decorative grille; Figure 3 This is a structural diagram of a toothed fastener; Figure 4 This is a schematic diagram of the toothed cylinder structure; Figure 5 This is the assembly drawing of the diamond-shaped decorative grille.

[0020] In the picture: 1. Vertical steel keel; 101. Screw A; 2. Horizontal steel keel; 3. Aluminum plate; 4. U-shaped fastener; 401. Screw B; 5. Connector support; 501. Protruding column; 6. Toothed cylinder; 601. Internal threaded hole; 7. Left fastener; 701. Through hole; 8. Right fastener; 9. Aluminum alloy grille profile; 10. Wide groove; 11. Bolt C; 12. Vertical toothed groove; 13. Bolt D. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0022] Example 1 like Figures 1-5 As shown, the present invention discloses a concealed connection structure for a diamond-shaped decorative grille, used to stably, adjustably, and aesthetically install an aluminum alloy grille profile 9 onto the building's base keel. The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] The concealed connection structure mainly consists of three parts: a support system, a connection adjustment system, and a grid fixing system.

[0024] Support system: includes vertical steel keel 1 and horizontal steel keel 2 as the main load-bearing frame. Aluminum plate 3, through the folded edge set at one end, together with the connector support 5, serves as an intermediate connecting base.

[0025] The connection and adjustment system is the core of this invention for achieving concealment and angle adjustment. It mainly includes a U-shaped fastener 4, a toothed cylinder 6, and a toothed fastener composed of a left fastener 7 and a right fastener 8.

[0026] Grille profiles: Made of aluminum alloy profiles, welded in the factory and then coated with fluorocarbon to ensure consistent appearance.

[0027] Specifically, the U-shaped fastener 4 is fixed to the surface of the vertical steel keel 1 by screw A101. The folded edge of the aluminum plate 3 and the connecting support 5 are inserted side by side into the internal cavity of the U-shaped fastener 4. It is locked by screw B401 passing through one side of the U-shaped fastener 4. Screw B401 passes through the folded edge of the aluminum plate 3 and finally securely connects with the connecting support 5. This design allows the connecting support 5 and the aluminum plate 3 to be fixed simultaneously, and when the connecting support 5 is fully embedded in the U-shaped fastener 4, its outer surface remains flush with the outer surface of the aluminum plate 3, laying the foundation for the subsequent concealment effect.

[0028] One end of the connector support 5 is provided with a protrusion 501, through which the toothed cylinder 6 is fixedly connected. The outer wall of the toothed cylinder 6 is integrally formed with several surrounding vertical toothed racks, and both ends of the racks are provided with internal threaded holes 601.

[0029] The toothed fastener consists of a mirror-symmetrical left fastener 7 and a right fastener 8. Both fasteners have arc-shaped grooves on their opposing inner surfaces, and the groove surfaces are machined with vertical toothed grooves 12 that precisely mesh with the vertical rack on the outer wall of the toothed cylinder 6. The left fastener 7 and right fastener 8 engage with the toothed cylinder 6 from both sides via their vertical toothed grooves 12. To meet angle adjustment requirements, both the left fastener 7 and right fastener 8 have wide grooves 10. After the bolt C11 passes through the wide groove 10, it is screwed into the internal threaded hole 601 at the end of the toothed cylinder 6. The width of the wide groove 10 is designed to be 5 to 10 times the diameter of the bolt C11 thread section, providing ample space for the horizontal movement of the bolt C11 within the groove. This allows the left and right fasteners to be rotated around the toothed cylinder 6 by a certain angle (e.g., -5° to +5°) before clamping it, to accommodate installation deviations. After adjusting to the required angle, tighten bolt C11 to lock the toothed fastener and toothed cylinder 6.

[0030] Grille fixing system: used for final connection of decorative grilles. Several bolts D13 are inserted into the vertical face of one end of the left fastener 7 and the right fastener 8 (i.e., the end facing away from the connector support 5). The threaded heads of the bolts D13 are accommodated in the vertically opened weight-reducing cavities inside the left and right fasteners. The through holes 701, horizontally aligned with the screw section, facilitate the insertion of tools into the left and right fasteners to rotate the bolts D13. The threaded heads of the bolts D13 are Phillips head. The screw section extends out of the weight-reducing cavity and is fixed to the aluminum alloy grille profile 9 to be installed behind it via a threaded connection, thereby firmly installing the grille unit in the adjusted position.

[0031] In addition, in the preferred embodiment, the left fastener 7 and the right fastener 8 are provided with a relief groove at the end facing the connector support 5 to avoid the protrusion 501 of the connector support 5 during installation; the end facing away from the connector support 5 is integrally formed with a Z-shaped interface.

[0032] Installation process in brief: Fix the U-shaped fastener 4 to the vertical steel keel 1.

[0033] Insert the aluminum plate 3 with the folded edge and the connector support 5 together into the U-shaped fastener 4, adjust them to be flush with the outer surface, and then tighten them with screw B401.

[0034] The toothed cylinder 6 is installed on the protrusion 501 of the connector support 5.

[0035] The left fastener 7 and the right fastener 8 are fastened to the toothed cylinder 6 from both sides, so that the vertical toothed groove 12 is initially engaged with the vertical toothed rack.

[0036] The prefabricated diamond-shaped aluminum alloy grille profile 9 is placed in place and initially connected to the left and right fasteners using bolts D13.

[0037] Using the adjustment margin provided by the wide slot 10, the grid unit is micro-rotated to the design angle to eliminate on-site installation errors.

[0038] Tighten bolts D13 and C11 in sequence to complete the final fixing and locking of the grid unit.

[0039] This invention achieves precision control, structural stability, and a neat appearance in grille installation through the aforementioned concealed, adjustable tooth meshing connection structure, making it particularly suitable for diamond-shaped decorative grille projects on the facades of high-end buildings.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concealed connection structure for a diamond-shaped decorative grille, characterized in that, The system includes a vertical steel keel (1), a horizontal steel keel (2), an aluminum plate (3), a U-shaped fastener (4), a connector support (5), a toothed fastener, and an aluminum alloy grille profile (9). The U-shaped fastener (4) is fixed to the surface of the vertical steel keel (1) by screw A (101). One end of the aluminum plate (3) is provided with a folded edge. The connector support (5) and the folded edge of the aluminum plate (3) are both embedded inside the U-shaped fastener (4). A screw B (401) is installed on one side of the U-shaped fastener (4). The screw B (401) passes through the folded edge of the aluminum plate (3) and is fixedly connected to the connector support (5). One end of the connector support (5) is connected to the toothed groove by a protrusion (501). The cylinder (6) is fixedly connected. The outer wall of the toothed cylinder (6) is integrally formed with several vertical toothed bars. Both ends of the toothed cylinder (6) are provided with internal threaded holes (601). The toothed fastener includes a left fastener (7) and a right fastener (8). The opposite surfaces of the left fastener (7) and the right fastener (8) are provided with vertical toothed grooves (12) that mesh with the outer wall of the toothed cylinder (6). Both the left fastener (7) and the right fastener (8) are provided with wide grooves (10). Bolts C (11) that are threadedly connected to the internal threaded holes (601) are passed through the wide grooves (10). Several bolts D (13) are passed through the end of the left fastener (7) and the right fastener (8) facing the aluminum alloy grid profile (9).

2. The concealed connection structure of the diamond-shaped decorative grille according to claim 1, characterized in that, The left fastener (7) and the right fastener (8) are provided with arc grooves on their opposite surfaces. The vertical tooth groove (12) is provided on the surface of the arc groove. The left fastener (7) and the right fastener (8) are provided with cavities for weight reduction in the vertical direction. The left fastener (7) and the right fastener (8) are provided with through holes (701) that are horizontally aligned with the bolt D (13).

3. The concealed connection structure of the diamond-shaped decorative grille according to claim 2, characterized in that, The bolt D (13) includes a screw head and a screw section. The screw head of the bolt D (13) is located in the cavity of the left fastener (7) and the right fastener (8). The screw section passes through the cavity of the left fastener (7) and the right fastener (8) and is threadedly connected to the aluminum alloy grid profile (9).

4. The concealed connection structure of the diamond-shaped decorative grille according to claim 3, characterized in that, Both the left fastener (7) and the right fastener (8) have clearance grooves at the ends facing the connector support (5) to avoid the protrusion (501), and both the left fastener (7) and the right fastener (8) have Z-shaped interfaces integrally formed at the ends facing away from the connector support (5).

5. The concealed connection structure of the diamond-shaped decorative grille according to claim 1, characterized in that, The width of the wide groove (10) is 5 to 10 times the diameter of the threaded section of bolt C (11).

6. The concealed connection structure of the diamond-shaped decorative grille according to claim 1, characterized in that, When the connector support (5) is embedded in the U-shaped fastener (4), the outer surface of the connector support (5) is flush with the outer surface of the aluminum plate (3).

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