High strength side wall door grille

By designing an aluminum alloy subframe and reinforcing components, the problems of unstable connection and insufficient structural reinforcement of the side wall door grille were solved, resulting in a high-strength grille structure that ensures safety and long-term stability in complex environments.

CN224496309UActive Publication Date: 2026-07-14CHANGZHOU FENGSHUNARCHITECTURE DECORATION MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU FENGSHUNARCHITECTURE DECORATION MATERIAL CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing side wall grilles, if the connections are not secure and the structure is not sufficiently reinforced, are prone to loosening, deformation or breakage under external impact and vibration loads, affecting safety and service life.

Method used

The design incorporates an aluminum alloy subframe and reinforcing components, including reinforcing waist ribs and L-shaped reinforcing angle steel, which are connected by fixing rivets and screws to form a stable grid structure, enhancing the overall strength of the connection points and the frame.

Benefits of technology

It improves the structural stability and overall strength of the grating, reduces the risk of damage, extends its service life, and ensures safe operation and stable use in complex environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high -strength side wall door grating, including two aluminum alloy auxiliary frame no.
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Description

Technical Field

[0001] This utility model relates to the field of seedling cultivation technology, and in particular to a high-strength side wall door grille. Background Technology

[0002] In numerous fields such as rail transit vehicles and architectural decoration, side wall grilles serve as important functional and decorative components, with their structural strength and stability directly impacting overall safety and service life. As related industries continuously raise their performance requirements for equipment, traditional grille structures are gradually revealing numerous shortcomings in terms of strength.

[0003] Currently, most existing sidewall grilles employ conventional frame structures with relatively simple connection methods, typically relying solely on the splicing of the basic frame and simple fasteners for assembly. This structural form has significant drawbacks in practical applications: Firstly, due to the lack of effective reinforcing components and reasonable structural reinforcement design, the connections between different parts of the grille are not robust enough. Under external impact or long-term vibration loads, connections are prone to loosening, deformation, or even breakage, severely affecting the normal use and overall safety of the grille. Secondly, while the grille frame material itself possesses a certain strength, the overall structure lacks targeted reinforcement measures, such as the absence of additional internal reinforcing support structures and the lack of reinforcing ribs in stress concentration areas like the frame waist. This makes it difficult for the grille to withstand large loads under complex working conditions, easily leading to localized damage and consequently affecting the stability and reliability of the entire system. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength sidewall door grille. The grille is comprehensively reinforced from its connection points to its frame itself, maximizing its structural stability. Whether facing intense vibrations and impacts during rail transit vehicle operation or complex environments such as external collisions in building decoration, this grille maintains excellent structural integrity, effectively reducing the risk of damage, lowering maintenance costs, and extending its service life. This provides strong protection for safe operation and long-term stable use in related fields.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A high-strength sidewall door grille, comprising:

[0007] Two aluminum alloy sub-frames 1, and two detachable aluminum alloy sub-frames 2 are provided between the two aluminum alloy sub-frames 1, and a reinforcing component for connecting the aluminum alloy sub-frames 1 and the aluminum alloy sub-frames 2 is provided at the end of the aluminum alloy sub-frames 2 near the aluminum alloy sub-frames 1.

[0008] In the aforementioned high-strength side wall door grille, the aluminum alloy sub-frame is embedded with a grille body that matches the aluminum alloy sub-frame.

[0009] In the aforementioned high-strength side wall door grille, the aluminum alloy sub-frame one is provided with a reinforcing rib one for reinforcing the aluminum alloy sub-frame one, and the aluminum alloy sub-frame two is provided with a reinforcing rib two for reinforcing the aluminum alloy sub-frame two.

[0010] In the aforementioned high-strength side wall door grille, one end of the reinforcing rib is provided with a first fixing rivet, and the other end of the reinforcing rib is provided with a second fixing rivet.

[0011] In the aforementioned high-strength side wall grille, one end of the reinforcing rib is fixedly connected to the aluminum alloy sub-frame by a first fixing rivet, and the other end of the reinforcing rib is fixedly connected to the aluminum alloy sub-frame and the grille body by a second fixing rivet.

[0012] The aforementioned high-strength side wall door grille, wherein the reinforcing component includes reinforcing angle steel for connecting the first aluminum alloy sub-frame and the second aluminum alloy sub-frame.

[0013] In the aforementioned high-strength side wall door grille, the reinforcing angle steel is designed in an L-shape, with one end of the reinforcing angle steel abutting against the side of the second aluminum alloy sub-frame, and the other end of the reinforcing angle steel abutting against the side of the first aluminum alloy sub-frame.

[0014] In the aforementioned high-strength side wall door grille, one end of the reinforcing angle steel is fixedly connected to the second aluminum alloy sub-frame via a first fixing screw, and the other end of the reinforcing angle steel is fixedly connected to the side of the first aluminum alloy sub-frame via a second fixing screw.

[0015] This utility model has at least the following beneficial effects:

[0016] 1. This utility model realizes a high-strength sidewall door grille. The grille is comprehensively reinforced from the connection parts to the frame itself, greatly increasing the structural stability of the grille. Whether in the strong vibration and impact faced by rail transit vehicles during operation or in complex environments such as external force collisions that may be encountered in the field of building decoration, this grille can maintain good structural integrity, effectively reduce the risk of damage, reduce maintenance costs, extend service life, and provide strong protection for safe operation and long-term stable use in related fields.

[0017] 2. In this utility model, a reinforcing component is provided, wherein the reinforcing angle steel abuts against the first and second aluminum alloy sub-frames respectively, and is reliably fixed by the first and second fixing screws. This design makes the connection between the first and second aluminum alloy sub-frames more stable, effectively enhances the transmission of interaction forces between the two, greatly improves the overall structural strength of the grille, and ensures that under various complex working conditions, the various parts of the grille can be tightly combined, and are not prone to loosening or separation, providing a solid foundation for the stable use of the grille;

[0018] 3. The grid body is embedded inside the aluminum alloy sub-frame 1 and aluminum alloy sub-frame 2, which can evenly distribute the external force and effectively resist deformation, significantly improving the bending, compressive and torsional resistance of the sub-frame itself. At the same time, reinforcing ribs 1 and 2 are set in the waist of aluminum alloy sub-frame 1 and aluminum alloy sub-frame 2. These reinforcing ribs can enhance the local strength of the waist of the sub-frame, effectively alleviate stress concentration, and prevent the sub-frame from being damaged due to excessive local stress during long-term use, further improving the overall structural stability of the grid. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the high-strength side wall door grille of this utility model;

[0021] Figure 2 This utility model Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0022] Figure 3 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0023] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0024] Explanation of icon numbers:

[0025] 1. Aluminum alloy sub-frame one; 2. Aluminum alloy sub-frame two; 3. Reinforcing components;

[0026] 101. Strengthen the lumbar muscles, Part 1; 201. Strengthen the lumbar muscles, Part 2;

[0027] 11. Grille body;

[0028] 1011, First fixing rivet; 1012, Second fixing rivet;

[0029] 301. Reinforcing angle steel; 302. First fixing screw; 303. Second fixing screw. Detailed Implementation

[0030] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0031] Please refer to Figures 1 to 4 As shown, an embodiment of the present invention provides a high-strength side wall door grille, comprising: two aluminum alloy sub-frames 1, two detachable aluminum alloy sub-frames 2 between the two aluminum alloy sub-frames 1, and a reinforcing component 3 for connecting the aluminum alloy sub-frames 1 and the aluminum alloy sub-frames 2 is provided at one end of the aluminum alloy sub-frames 2 near the aluminum alloy sub-frames 1.

[0032] By adopting the above technical solutions, the grille is comprehensively strengthened from the connection points to the frame itself, greatly increasing its structural stability. Whether facing strong vibrations and impacts during rail transit vehicle operation or complex environments such as external collisions in the building decoration field, the grille maintains good structural integrity, effectively reducing the risk of damage, lowering maintenance costs, and extending its service life, providing strong protection for safe operation and long-term stable use in related fields.

[0033] To achieve a tight integration and structural optimization between the grille body 11 and the aluminum alloy sub-frames 1 and 2, in this embodiment, the aluminum alloy sub-frame 1 is embedded with a grille body 11 that matches the aluminum alloy sub-frame 1. This embedded design makes the grille body 11, aluminum alloy sub-frame 1, and aluminum alloy sub-frame 2 form an organic whole. This not only effectively improves the structural compactness of the grille and reduces the risk of loosening caused by gaps between components, but also enhances the overall mechanical properties of the grille. When the grille is subjected to external forces, the force can be more evenly distributed on the entire structure, avoiding damage caused by excessive local stress, thereby improving the overall strength and stability of the grille.

[0034] To further enhance the structural strength of aluminum alloy sub-frame 1 and aluminum alloy sub-frame 2 and ensure their stable load-bearing capacity, in this embodiment: A reinforcing rib 101 is provided on aluminum alloy sub-frame 1 to strengthen it, and a reinforcing rib 201 is provided on aluminum alloy sub-frame 2 to strengthen it. The reinforcing ribs 101 and 201 are respectively provided on aluminum alloy sub-frame 1 and aluminum alloy sub-frame 2, which can effectively increase the bending and torsional resistance of the sub-frame waist, alleviate stress concentration, and prevent deformation or breakage of the sub-frame due to uneven stress or excessive local stress during long-term use. One end of the reinforcing rib 101 is provided with a first fixing rivet 1011, and the other end of the reinforcing rib 101 is provided with a second fixing rivet 1012. One end of the reinforcing rib 101 is fixedly connected to the aluminum alloy sub-frame 1 through the first fixing rivet 1011, and the other end of the reinforcing rib 101 is fixedly connected to the aluminum alloy sub-frame 1 and the grille body 11 through the second fixing rivet 1012. This double fixing method forms a stable connection between the reinforcing rib 101, the aluminum alloy sub-frame 1, and the grille body 11, further enhancing the integrity and strength of the grille structure and improving the grille's ability to resist external damage.

[0035] To enhance the connection stability between aluminum alloy sub-frame 1 and aluminum alloy sub-frame 2, and improve the overall structural stability of the grille, in this embodiment: the reinforcing component 3 includes a reinforcing angle steel 301 for connecting aluminum alloy sub-frame 1 and aluminum alloy sub-frame 2. The reinforcing angle steel 301 is L-shaped, with one end abutting against the side of aluminum alloy sub-frame 2 and the other end abutting against the side of aluminum alloy sub-frame 1. One end of the reinforcing angle steel 301 is fixedly connected to aluminum alloy sub-frame 2 by a first fixing screw 302, and the other end of the reinforcing angle steel 301 is fixedly connected to aluminum alloy sub-frame 2 by a second fixing screw 302. The fixing screw 303 is fixedly connected to the side of the aluminum alloy sub-frame 1. The L-shaped reinforcing angle steel 301 can fit tightly against the sides of both the aluminum alloy sub-frame 1 and the aluminum alloy sub-frame 2. Through the fixing action of the first fixing screw 302 and the second fixing screw 303, the two sub-frames are firmly connected together, which effectively enhances the force transmission between the sub-frames. When the grid is subjected to external force, the force can be evenly distributed between the two sub-frames through the reinforcing angle steel 301, avoiding structural damage caused by weak connection parts, and greatly improving the overall structural stability and load-bearing capacity of the grid.

[0036] The working principle of this utility model is as follows: High strength of the grille is achieved through the synergistic effect of multiple structural designs and connection methods. First, the grille body 11 is embedded within the aluminum alloy sub-frame 1, ensuring a tight connection and optimizing the internal structure of the grille, thus enhancing its overall mechanical properties. Next, reinforcing ribs 101 and 201 are respectively installed on the aluminum alloy sub-frame 1 and the aluminum alloy sub-frame 2, and are fixedly connected to the aluminum alloy sub-frame 1 and the grille body 11 using a double-fixing method. This effectively enhances the structural strength of the sub-frame waist, alleviates stress concentration, and improves the grille's resistance to external damage. Finally, the L-shaped reinforcing angle steel 301 in the reinforcing component 3 connects the aluminum alloy sub-frame 1 and the aluminum alloy sub-frame 2. The reinforcing angle steel 301 is firmly fixed to the two sub-frames using fixing screws, enhancing the connection stability between the sub-frames. This allows the grille to evenly distribute force when subjected to external forces, avoiding excessive local stress, thereby maximizing the overall structural stability and strength of the grille.

[0037] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high-strength sidewall door grille, comprising two aluminum alloy sub-frames (1), characterized in that, Two detachable aluminum alloy sub-frames (2) are provided between the two aluminum alloy sub-frames (1), and a reinforcing component (3) for connecting the aluminum alloy sub-frames (1) and the aluminum alloy sub-frames (2) is provided at the end of the aluminum alloy sub-frames (2) near the aluminum alloy sub-frames (1). The aluminum alloy sub-frame (1) is embedded with a grille body (11) that matches the aluminum alloy sub-frame (1). Among them, the aluminum alloy sub-frame one (1) is provided with a reinforcing rib one (101) for reinforcing the aluminum alloy sub-frame one (1), and the aluminum alloy sub-frame two (2) is provided with a reinforcing rib two (201) for reinforcing the aluminum alloy sub-frame two (2). The reinforcing component (3) includes a reinforcing angle steel (301) for connecting the aluminum alloy sub-frame one (1) and the aluminum alloy sub-frame two (2). The reinforcing angle steel (301) is L-shaped, and one end of the reinforcing angle steel (301) abuts against the side of the aluminum alloy sub-frame 2 (2), while the other end of the reinforcing angle steel (301) abuts against the side of the aluminum alloy sub-frame 1 (1). One end of the reinforcing angle steel (301) is fixedly connected to the aluminum alloy sub-frame two (2) by the first fixing screw (302), and the other end of the reinforcing angle steel (301) is fixedly connected to the side of the aluminum alloy sub-frame one (1) by the second fixing screw (303).

2. The high-strength side wall door grille according to claim 1, characterized in that: One end of the reinforcing rib (101) is provided with a first fixing rivet (1011), and the other end of the reinforcing rib (101) is provided with a second fixing rivet (1012).

3. The high-strength side wall door grille according to claim 2, characterized in that: One end of the reinforcing rib (101) is fixedly connected to the aluminum alloy sub-frame (1) by the first fixing rivet (1011), and the other end of the reinforcing rib (101) is fixedly connected to the aluminum alloy sub-frame (1) and the grille body (11) by the second fixing rivet (1012).