L-shaped keel inner corner two-way riveting reinforcement
By using a two-way riveting design between an L-shaped base plate and a trapezoidal rib, the problems of long time consumption and unstable fixing of traditional ceiling corner brackets are solved, thereby improving the stability and flexibility of the ceiling structure, as well as enhancing bending stiffness and fixing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN JIEHAN YIDA TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-03
Smart Images

Figure CN224452010U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ceiling construction in building decoration, and in particular to a bidirectional riveting reinforcement for the inner corner of an L-shaped keel. Background Technology
[0002] In modern architectural decoration, suspended ceilings are an important component of interior design, not only beautifying the space but also concealing various pipes and equipment, thus enhancing the overall aesthetic. The stability and safety of a suspended ceiling primarily depend on its frame structure, and the design and material selection of the keel, as the core component of the ceiling frame, directly affects the quality and lifespan of the ceiling.
[0003] However, traditional corner brackets require separate fixing of the surface keel and the finishing keel, taking ≥4 minutes per point, and cannot be adjusted after fixing with self-tapping screws. Existing reinforcing plates lack stress distribution design, resulting in a rivet detachment rate >15% under ceiling vibration (tested in GB / T15856.1-2018). The sagging of the inner corner of the ceiling causes the keel to warp and deform, leading to cracks in the ceiling wall. Therefore, those skilled in the art provide an L-shaped keel inner corner bidirectional riveting reinforcement to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an L-shaped keel inner corner bidirectional riveting reinforcement. The L-shaped base plate cooperates with two trapezoidal ribs for finishing and splicing the bottom surface of the ceiling corner, which can increase the stability of the keel structure and balance the keel tension. At the same time, compared with no ribs, the trapezoidal ribs increase the overall bending stiffness by 150%. The horizontal riveting holes allow the surface keel to be adjusted horizontally by ±3mm. The bidirectional riveting hole synchronous design improves the fixing efficiency of the double keel by 70%.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an L-shaped keel inner corner bidirectional riveting reinforcement, comprising an L-shaped base plate, wherein a plurality of horizontal riveting holes are provided on the upper end surface of the L-shaped base plate, the lower ends of the plurality of horizontal riveting holes respectively penetrate the upper end surface of the L-shaped base plate and respectively lead to the lower end, trapezoidal ribs are respectively fixedly connected to the front edge of one side of the center of the lower end surface of the L-shaped base plate and the front edge of the center of the lower end surface of the L-shaped base plate, and a plurality of vertical riveting holes are provided on one side wall of the two trapezoidal ribs respectively, the plurality of vertical riveting holes respectively penetrate the side wall of the two trapezoidal ribs and respectively lead to the other end;
[0006] The above technical solution uses an L-shaped base plate and two trapezoidal ribs for finishing and splicing the bottom of the ceiling corner, which can increase the stability of the keel structure and balance the keel tension. At the same time, compared with no ribs, the trapezoidal ribs increase the overall bending stiffness by 150%. The horizontal rivet holes allow the surface keel to be adjusted by ±3mm horizontally, and the bidirectional rivet hole synchronous design improves the fixing efficiency of the double keel by 70%.
[0007] Furthermore, each of the plurality of horizontal rivet holes and the plurality of trapezoidal ribs has a limiting layer disposed inside;
[0008] With the above technical solution, the limiting layer is made of a thin galvanized iron plate. During installation, passing through the limiting layer can further ensure the stability of the connection. Even if loosening occurs, the internal connecting screws will not fall off.
[0009] Furthermore, the L-shaped base plate and the two trapezoidal ribs are made of galvanized steel plate or coated steel plate;
[0010] All of the above technical solutions have a certain degree of strength and the effect of preventing oxidation and rust.
[0011] Furthermore, the L-shaped substrate and the two trapezoidal ribs are integrally formed;
[0012] The above technical solutions make the one-piece molded structure more stable.
[0013] Furthermore, both of the trapezoidal ribs are trapezoidal in shape;
[0014] The above technical solution has a good anti-bending effect.
[0015] Furthermore, the specifications of the plurality of horizontal riveting holes are consistent with those of the plurality of vertical riveting holes;
[0016] The above technical solution facilitates the fixing of vertical and horizontal directions.
[0017] This utility model has the following beneficial effects:
[0018] 1. In this utility model, the L-shaped base plate and two trapezoidal ribs are used for the bottom edge finishing and splicing connection of the ceiling corner, which can increase the stability of the keel structure and balance the keel tension. At the same time, compared with no ribs, the trapezoidal ribs increase the overall bending stiffness by 150%.
[0019] 2. In this utility model, by setting horizontal and vertical rivet holes, the horizontal rivet holes allow the surface keel to be adjusted horizontally by ±3mm, and the bidirectional rivet hole synchronous design improves the fixing efficiency of the double keel by 70%. Attached Figure Description
[0020] Figure 1This is an isometric view of an L-shaped keel inner corner bidirectional riveting reinforcement proposed in this utility model;
[0021] Figure 2 An isometric view of the other side of an L-shaped keel inner corner bidirectional riveting reinforcement member proposed in this utility model;
[0022] Figure 3 Axonometric view from the lower left angle of an L-shaped keel inner corner bidirectional riveting reinforcement proposed in this utility model;
[0023] Figure 4 This is an isometric view from the lower right angle of an L-shaped keel inner corner bidirectional riveting reinforcement proposed in this utility model.
[0024] Legend:
[0025] 1. L-shaped substrate; 2. Trapezoidal rib; 3. Horizontal riveting holes; 4. Vertical riveting holes; 5. Confinement layer. Detailed Implementation
[0026] 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.
[0027] Reference Figure 1-4 This utility model provides an embodiment of an L-shaped keel inner corner bidirectional riveting reinforcement, including an L-shaped base plate 1. Multiple horizontal riveting holes 3 are provided on the upper surface of the L-shaped base plate 1. The lower ends of the multiple horizontal riveting holes 3 respectively penetrate the upper surface of the L-shaped base plate 1 and lead to the lower end. Trapezoidal ribs 2 are fixedly connected to the front edge of one side of the center of the lower surface of the L-shaped base plate 1 and the front edge of the center of the lower surface of the L-shaped base plate 1, respectively. Multiple vertical... The vertical rivet holes 4 penetrate the side walls of the two trapezoidal ribs 2 and lead to the other end. They are used to finish the bottom edge of the ceiling corner and splice the L-shaped base plate 1 with the two trapezoidal ribs 2. This can increase the stability of the keel structure and balance the keel tension. At the same time, compared with no ribs, the trapezoidal ribs 2 increase the overall bending stiffness by 150%. The horizontal rivet holes 3 allow the surface keel to be adjusted horizontally by ±3mm. The bidirectional rivet hole synchronous design improves the fixing efficiency of the double keel by 70%.
[0028] Multiple horizontal rivet holes 3 and multiple trapezoidal ribs 2 are respectively provided with a limiting layer 5. The limiting layer 5 is made of a thin galvanized iron plate. During installation, passing through the limiting layer 5 can further ensure the stability of the connection. Even if loosening occurs, the internal connecting screws will not fall off. The L-shaped base plate 1 and the two trapezoidal ribs 2 are made of galvanized steel plate or coated steel plate, both of which have a certain strength and the effect of preventing oxidation and rust.
[0029] The L-shaped base plate 1 and the two trapezoidal ribs 2 are integrally formed, which makes the integral structure more stable. The two trapezoidal ribs 2 are both trapezoidal in shape, which has a good anti-bending effect. The specifications of the multiple horizontal rivet holes 3 and the multiple vertical rivet holes 4 are consistent, which facilitates the fixing in the vertical and horizontal directions.
[0030] Working principle: This utility model is a bidirectional riveting reinforcement for the inner corner of an L-shaped keel. In use, the covering keel is attached tightly to the base plate L-shaped base plate 1, and the rivet passes through the horizontal rivet hole 3 and the keel hole. The bottom surface of the F-shaped closing keel is attached tightly to the L-shaped base plate 1, and the side is attached tightly to the trapezoidal rib plate 2. The rivet passes through the horizontal rivet hole 3, and the trapezoidal rib plate 2 covers the intersection of the inner corners of the two keels. The rivet passes through the vertical rivet hole 4 and the side keel hole of the F-shaped closing keel. After riveting, the trapezoidal rib plate 2 covers the intersection of the inner corners of the two keels.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A two-way riveted L-shaped corner reinforcement for an L-shaped floor beam, comprising an L-shaped base plate (1), characterized in that: The upper surface of the L-shaped substrate (1) is provided with a plurality of horizontal riveting holes (3). The lower ends of the plurality of horizontal riveting holes (3) pass through the upper surface of the L-shaped substrate (1) and lead to the lower end respectively. Trapezoidal ribs (2) are fixedly connected to the front edge of the center of the lower surface of the L-shaped substrate (1) and the front edge of the center of the lower surface of the L-shaped substrate (1) respectively. A plurality of vertical riveting holes (4) are provided on one side wall of the two trapezoidal ribs (2). The plurality of vertical riveting holes (4) pass through the side walls of the two trapezoidal ribs (2) and lead to the other end respectively.
2. A L-shaped keel interior corner two-way riveted reinforcement according to claim 1, characterized in that: Each of the multiple horizontal rivet holes (3) and multiple trapezoidal ribs (2) has a limiting layer (5) inside.
3. A L-shaped keel interior corner two-way riveted reinforcement according to claim 1, characterized in that: The L-shaped base plate (1) and the two trapezoidal ribs (2) are made of galvanized steel plate or coated steel plate.
4. A L-shaped keel interior corner two-way riveted reinforcement according to claim 1, characterized in that: The L-shaped substrate (1) and the two trapezoidal ribs (2) are integrally formed.
5. A L-shaped keel interior corner two-way riveted reinforcement according to claim 1, characterized in that: Both trapezoidal ribs (2) are trapezoidal in shape.
6. A L-shaped keel interior corner two-way riveted reinforcement according to claim 1, characterized in that: The specifications of the multiple horizontal rivet holes (3) are consistent with those of the multiple vertical rivet holes (4).