A universal angle bracket

By using the rotatable connection structure between the first and second rotating arms and the detachable connecting components, the problem that existing corner brackets cannot adapt to multi-angle connections of irregularly shaped doors and windows is solved, achieving flexible angle adjustment and reducing customization costs.

CN224432373UActive Publication Date: 2026-06-30FOSHAN RUIHUA CHUANGFENG HARDWARE PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN RUIHUA CHUANGFENG HARDWARE PROD CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing fixed corner brackets can only achieve 90-degree right-angle connections, which is difficult to adapt to the multi-angle requirements of irregularly shaped doors and windows. Furthermore, customized rotating corner brackets are costly and have poor versatility.

Method used

It adopts a rotatable connection structure between the first and second rotating arms, combined with the detachable first and second corner bracket connecting parts, and achieves multi-angle adaptation through rotation and detachable connection, which is suitable for connection needs of different shapes and materials.

Benefits of technology

It enables rapid angle adjustment and flexible connection, reduces customization costs, adapts to the connection needs of various irregularly shaped doors and windows, and reduces maintenance complexity and costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224432373U_ABST
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Abstract

This utility model discloses a universal angle bracket, including a first rotating arm, a second rotating arm, a first angle bracket connecting part, and a second angle bracket connecting part. The first angle bracket connecting part is detachably connected to the first rotating arm, and the second angle bracket connecting part is detachably connected to the second rotating arm. The first rotating arm and the second rotating arm are rotatably connected. By adopting a rotatable connection structure between the first and second rotating arms, and by detachably connecting the first angle bracket connecting part to the first rotating arm and the second angle bracket connecting part to the second rotating arm, this combined design retains the support and fixing functions of the angle bracket, while improving its flexibility through rotation and detachability. The rotational connection allows for quick adjustment of the installation angle, and the detachable connection allows for replacement of connecting parts of different shapes and materials according to installation requirements, reducing procurement complexity and cost.
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Description

Technical Field

[0001] This utility model relates to the field of door and window connection system technology, and more specifically, to a universal angle bracket. Background Technology

[0002] With the increasing diversity of architectural design styles, people have higher and higher requirements for the shape of doors and windows, no longer limited to traditional right angles, but with a large number of irregularly shaped doors and windows, such as curved and polygonal shapes. This requires door and window connecting components to be able to adapt to different angle connections, while traditional fixed corner brackets can only achieve 90-degree right angle connections. Existing technologies also include some custom-made rotating corner brackets, but these corner brackets can mostly only be used in doors and windows of specific sizes or specifications, with poor versatility and high cost. Utility Model Content

[0003] This utility model provides a universal angle bracket to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a universal angle bracket, comprising a first rotating arm, a second rotating arm, a first angle bracket connecting part, and a second angle bracket connecting part; the first angle bracket connecting part is detachably connected to the first rotating arm, and the second angle bracket connecting part is detachably connected to the second rotating arm; the first rotating arm and the second rotating arm are rotatably connected.

[0004] Preferably, one end of the first rotating arm is provided with a snap-fit ​​arm, and the end of the snap-fit ​​arm is provided with a rotating shaft; one end of the second rotating arm is provided with an arc-shaped groove, and the rotating shaft is inserted into the arc-shaped groove from the side, and the rotating shaft and the arc-shaped groove are rotatably connected.

[0005] Preferably, the inner wall of the arc-shaped groove has several protruding ridges distributed circumferentially, and the protruding ridges abut against the surface of the rotating shaft.

[0006] Preferably, the arc-shaped groove is provided with a limiting block, which is configured to cooperate with the snap-fit ​​arm.

[0007] Preferably, the surface of the rotating shaft is provided with a plurality of toothed textures, which are configured to cooperate with the protruding ridges.

[0008] Preferably, the first rotating arm and the second rotating arm are respectively provided with connecting grooves, the connecting grooves are provided with countersunk holes, and the countersunk holes are provided with connecting screws; the first corner bracket connecting part and the second corner bracket connecting part are respectively provided with internal threaded holes that cooperate with the connecting screws.

[0009] Preferably, the first rotating arm and the second rotating arm are respectively provided with a first mounting groove, the first corner bracket connecting part and the second corner bracket connecting part are respectively provided with a second mounting groove that cooperates with the first mounting groove, the second mounting groove is provided with a mounting hole, and the first mounting groove is provided with a through hole that cooperates with the mounting hole.

[0010] Preferably, the first rotating arm and the second rotating arm are respectively provided with a first slot, and the first corner bracket connecting part and the second corner bracket connecting part are respectively provided with a second slot that cooperates with the first slot, and the first slot and the corresponding second slot engage with each other.

[0011] Preferably, the bottom of the second mounting groove is provided with a snap-fit ​​groove, and a snap-fit ​​plate is provided on the snap-fit ​​groove. The snap-fit ​​plate and the snap-fit ​​groove are interference-fitted. The snap-fit ​​plate is provided with a screw hole, and the screw hole is arranged opposite to the mounting hole.

[0012] Preferably, the structure of the first corner code connecting part is the same as the structure of the second corner code connecting part.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model adopts a rotatable connection structure between the first rotating arm and the second rotating arm, and the first corner code connecting part is detachably connected to the first rotating arm, and the second corner code connecting part is detachably connected to the second rotating arm. This combined design not only retains the support and fixing function of the corner code, but also improves the flexibility of the corner code through rotation and detachability. The rotational connection can realize the quick adjustment of the installation angle, and the detachable connection can replace the connecting parts of different shapes and materials according to the installation requirements, which can meet most needs, so that users do not need to customize special corner codes for specific scenarios, reducing procurement complexity and cost. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the universal angle bracket according to an embodiment of the present invention;

[0015] Figure 2 This is a structural diagram of the universal angle bracket from another perspective of an embodiment of this utility model;

[0016] Figure 3 This is a front view of the universal angle bracket according to an embodiment of the present invention;

[0017] Figure 4 This is an exploded view of the universal angle bracket according to an embodiment of the present invention;

[0018] exist Figures 1 to 4 In the diagram, the correspondence between the component names and the drawing numbers is as follows:

[0019] 1--First rotating arm, 11--Snap-fit ​​arm, 12--Rotating shaft, 13--Connecting groove, 14--Counterhead hole, 15--First mounting groove, 16--Through hole, 17--First snap-fit ​​groove, 2--Second rotating arm, 21--Arc groove, 22--Protruding ridge, 23--Limiting block, 3--First corner code connecting part, 31--Second mounting groove, 32--Mounting hole, 33--Second snap-fit ​​groove, 34--Snap-fit ​​groove, 4--Second corner code connecting part, 5--Connecting screw. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please refer to Figures 1 to 4 This utility model provides a universal angle bracket, including a first rotating arm 1, a second rotating arm 2, a first angle bracket connecting part 3, and a second angle bracket connecting part 4; the first angle bracket connecting part 3 is detachably connected to the first rotating arm 1, and the second angle bracket connecting part 4 is detachably connected to the second rotating arm 2; the first rotating arm 1 and the second rotating arm 2 are rotatably connected.

[0024] In the embodiments of this utility model, the rotatable connection between the first rotating arm 1 and the second rotating arm 2 allows for free adjustment of the included angle between the two arms, breaking through the limitation of a single angle of the fixed corner code. This adapts to connection requirements at any acute angle, eliminating the need for separate corner codes for different angles. The first corner code connecting part 3 and the second corner code connecting part 4 can be selected according to the specifications of the workpiece to be connected (such as thickness, material, and hole diameter) to better adapt to profiles and plates of different sizes or types. Furthermore, when a single corner code connecting part is damaged, there is no need to replace the entire unit; only the damaged part needs to be replaced, reducing maintenance costs and extending the overall service life.

[0025] In use, select the matching first corner bracket connector 3 and second corner bracket connector 4 according to the specifications of the door and window system, and install them onto the first rotating arm 1 and the second rotating arm 2 respectively using detachable structures (such as bolts and clips). Through the rotatable connection structure between the first rotating arm 1 and the second rotating arm 2, rotate the two rotating arms to adapt the overall angle to the included angle requirements of the workpiece to be connected. Fix the installed corner bracket connector to the workpiece to complete the stable connection of the workpiece.

[0026] Preferably, one end of the first rotating arm 1 is provided with a snap-fit ​​arm 11, and the end of the snap-fit ​​arm 11 is provided with a rotating shaft 12; one end of the second rotating arm 2 is provided with an arc-shaped groove 21, and the rotating shaft 12 is inserted into the arc-shaped groove 21 from the side, and the rotating shaft 12 and the arc-shaped groove 21 are rotatably connected.

[0027] In this embodiment, the first rotating arm 1 forms a rotational engagement with the arc-shaped groove 21 of the second rotating arm 2 through the rotating shaft 12 at the end of the snap-fit ​​arm 11. The arc-shaped groove 21 provides a stable motion trajectory guide for the rotating shaft 12. The connection method of inserting the rotating shaft 12 from the side of the arc-shaped groove 21 not only ensures the flexibility of rotation, but also forms a lateral limit on the rotating shaft 12 through the side wall of the arc-shaped groove 21, which enhances the structural strength of the rotating connection part, reduces the risk of deformation under stress, and improves the stability and load-bearing capacity of the overall connection.

[0028] Preferably, the inner wall of the arc-shaped groove 21 has a plurality of protruding ridges 22 distributed circumferentially, and the protruding ridges 22 abut against the surface of the rotating shaft 12. In this embodiment, the protruding ridges 22 distributed circumferentially on the inner wall of the arc-shaped groove 21 abut against the surface of the rotating shaft 12, forming a multi-point friction positioning structure. When adjusting the angle, the rotating shaft 12 rotates and successively passes over the protruding ridges 22. Each time it passes a position of a protruding ridge 22, a brief limiting stop is formed, making it less likely to deviate due to slight shaking caused by external force after the angle is adjusted.

[0029] Preferably, a limiting block 23 is provided on the arc-shaped groove 21, and the limiting block 23 is configured to cooperate with the snap-fit ​​arm 11. In this embodiment, the limiting block 23, through physical contact with the snap-fit ​​arm 11, can limit the maximum angle of rotation of the first rotating arm 1 around the rotating shaft 12, preventing the design stroke of the arc-shaped groove 21 from being exceeded due to improper operation, avoiding the rotating shaft 12 from disengaging from the arc-shaped groove 21 or the structural components from colliding or deforming due to excessive rotation, thus protecting the integrity of the overall structure.

[0030] Preferably, the surface of the rotating shaft 12 is provided with a plurality of toothed textures, which are configured to cooperate with the protruding ridges 22. Through this structural configuration, the toothed textures on the surface of the rotating shaft 12 cooperate with the protruding ridges 22 on the inner wall of the arc-shaped groove 21 to form an interlocking positioning structure. Compared to simple friction positioning, the interlocking of the teeth significantly improves the accuracy of angle positioning, ensuring that each adjustment can stably remain at the preset angle. Furthermore, the interlocking cooperation between the toothed textures and the protruding ridges 22 provides stronger resistance to loosening, improving the overall stability of the connection when subjected to external forces such as vibration and impact.

[0031] Preferably, the first rotating arm 1 and the second rotating arm 2 are respectively provided with connecting grooves 13, the connecting grooves 13 are provided with countersunk holes 14, and the countersunk holes 14 are provided with connecting screws 5; the first angle bracket connecting part 3 and the second angle bracket connecting part 4 are respectively provided with internal threaded holes that mate with the connecting screws 5. In this embodiment, the first rotating arm 1 and the second rotating arm 2 are respectively provided with connecting grooves 13, and the countersunk holes 14 on the connecting grooves 13 allow the head of the connecting screws 5 to be hidden therein, avoiding structural interference and maintaining a flat and aesthetically pleasing surface. The threaded engagement between the connecting screws 5 and the internal threaded holes achieves rigid locking, ensuring a tight connection that is not easily loosened, and the disassembly facilitates the replacement of parts or adjustment of positions in the future, adapting to workpieces of different specifications.

[0032] Preferably, the first rotating arm 1 and the second rotating arm 2 are respectively provided with a first mounting groove 15, and the first corner bracket connecting part 3 and the second corner bracket connecting part 4 are respectively provided with a second mounting groove 31 that mates with the first mounting groove 15. The second mounting groove 31 is provided with a mounting hole 32, and the first mounting groove 15 is provided with a through hole 16 that mates with the mounting hole 32. In this embodiment,

[0033] The first rotating arm 1 and the second rotating arm 2 are each provided with a first mounting groove 15, and the first corner bracket connecting part 3 and the second corner bracket connecting part 4 are each provided with a second mounting groove 31. The first mounting groove 15 on the first rotating arm 1 mates with the second mounting groove 31 on the first corner bracket connecting part 3, and similarly, the second rotating arm 2 mates with the second corner bracket connecting part 4. Specifically, the mating of the first mounting groove 15 and the second mounting groove 31 forms a fitting positioning structure. During installation, the two are nested together, which can quickly achieve the initial alignment of the rotating arm and the corner bracket connecting part, reducing the adjustment time for hole alignment. This is especially suitable for batch assembly scenarios, reducing the difficulty and error of manual alignment. The mating of the mounting grooves can restrict the relative sliding of the two in the plane, ensuring that the through hole 16 of the first mounting groove 15 and the mounting hole 32 of the second mounting groove 31 are accurately aligned, avoiding loosening of the connection due to component misalignment during assembly. The nested contact of the mounting slot increases the contact area between the rotating arm and the connecting part, allowing the connection force to be evenly transmitted through the contact surface. This avoids deformation or breakage caused by concentrated force at a single connection point (such as a screw), and can improve the bending resistance of the overall structure, especially in load-bearing scenarios.

[0034] Preferably, the first rotating arm 1 and the second rotating arm 2 are respectively provided with a first slot 17, and the first corner bracket connecting part 3 and the second corner bracket connecting part 4 are respectively provided with a second slot 33 that cooperates with the first slot 17. The first slot 17 and the corresponding second slot 33 are interlocked with each other. In this embodiment, the first rotating arm 1 and the second rotating arm 2 are respectively provided with a first slot 17, and the first corner bracket connecting part 3 and the second corner bracket connecting part 4 are respectively provided with a second slot 33. The first slot 17 on the first rotating arm 1 cooperates with the second slot 33 on the first corner bracket connecting part 3, and similarly, the second rotating arm 2 cooperates with the second corner bracket connecting part 4. Specifically, the interlocking of the first slot 17 and the second slot 33 forms a mechanical interlocking structure. Through the interlocking of the toothed or concave-convex structure, the anti-separation ability between the rotating arm and the corner bracket connecting part is enhanced. Compared with the simple planar bonding connection, it can effectively prevent the two from sliding or misaligning relative to each other when subjected to force, which is especially suitable for scenarios with vibration or complex force.

[0035] Preferably, the bottom of the second mounting groove 31 is provided with a snap-fit ​​groove 34, and a snap-fit ​​plate is provided on the snap-fit ​​groove 34. The snap-fit ​​plate and the snap-fit ​​groove 34 are interference-fitted. The snap-fit ​​plate is provided with a screw hole, which is opposite to the mounting hole 32. In this embodiment, the snap-fit ​​groove 34 at the bottom of the second mounting groove 31 and the snap-fit ​​plate are interference-fitted to form a tight mechanical fit. The radial pressure generated by the interference fit firmly fixes the two together, effectively preventing the snap-fit ​​plate from loosening or shaking in the snap-fit ​​groove 34, and providing stable support for the subsequent connection of the screw hole and the mounting hole 32. The screw hole on the snap-fit ​​plate is opposite to the mounting hole 32, and together with the fastener, it forms a "compact fit + threaded locking" fixing structure. Compared with a single screw hole connection method, this can further improve the connection strength and withstand greater tensile force, shear force and torque.

[0036] Preferably, the structure of the first corner code connecting part 3 is the same as the structure of the second corner code connecting part 4.

[0037] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model adopts a rotatable connection structure between the first rotating arm and the second rotating arm, and the first corner code connecting part is detachably connected to the first rotating arm, and the second corner code connecting part is detachably connected to the second rotating arm. This combined design not only retains the support and fixing function of the corner code, but also improves the flexibility of the corner code through rotation and detachability. The rotational connection can realize the quick adjustment of the installation angle, and the detachable connection can replace the connecting parts of different shapes and materials according to the installation requirements, which can meet most needs, so that users do not need to customize special corner codes for specific scenarios, reducing procurement complexity and cost.

[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A universal angle bracket, characterized in that, It includes a first rotating arm (1), a second rotating arm (2), a first corner bracket connecting part (3) and a second corner bracket connecting part (4); the first corner bracket connecting part is detachably connected to the first rotating arm, and the second corner bracket connecting part is detachably connected to the second rotating arm; the first rotating arm and the second rotating arm are rotatably connected.

2. The universal angle bracket according to claim 1, characterized in that, The first rotating arm has a snap-fit ​​arm (11) at one end, and a rotating shaft (12) at the end of the snap-fit ​​arm; the second rotating arm has an arc groove (21) at one end, and the rotating shaft is inserted into the arc groove from the side, and the rotating shaft and the arc groove are rotatably connected.

3. The universal angle bracket according to claim 2, characterized in that, The inner wall of the arc-shaped groove has several protruding ridges (22) distributed circumferentially, and the protruding ridges abut against the surface of the rotating shaft.

4. The universal angle bracket according to claim 2, characterized in that, The arc-shaped groove is provided with a limiting block (23), which is configured to cooperate with the snap-fit ​​arm.

5. The universal angle bracket according to claim 3, characterized in that, The surface of the rotating shaft is provided with a plurality of toothed textures, which are configured to cooperate with the protruding ridges.

6. The universal angle bracket according to claim 1, characterized in that, The first rotating arm and the second rotating arm are respectively provided with connecting grooves (13), the connecting grooves are provided with countersunk holes (14), and the countersunk holes are provided with connecting screws (5); the first corner bracket connecting part and the second corner bracket connecting part are respectively provided with internal threaded holes that cooperate with the connecting screws.

7. The universal angle bracket according to claim 1, characterized in that, The first rotating arm and the second rotating arm are respectively provided with a first mounting groove (15), the first corner bracket connecting part and the second corner bracket connecting part are respectively provided with a second mounting groove (31) that cooperates with the first mounting groove, the second mounting groove is provided with a mounting hole (32), and the first mounting groove is provided with a through hole (16) that cooperates with the mounting hole.

8. The universal angle bracket according to claim 7, characterized in that, The first rotating arm and the second rotating arm are respectively provided with a first slot (17), and the first corner code connecting part and the second corner code connecting part are respectively provided with a second slot (33) that cooperates with the first slot. The first slot and the corresponding second slot engage with each other.

9. The universal angle bracket according to claim 7, characterized in that, The bottom of the second mounting groove is provided with a snap-fit ​​groove (34), and a snap-fit ​​plate is provided on the snap-fit ​​groove. The snap-fit ​​plate and the snap-fit ​​groove are interference-fitted. The snap-fit ​​plate is provided with a screw hole, and the screw hole is arranged opposite to the mounting hole.

10. The universal angle bracket according to any one of claims 1 to 9, characterized in that, The structure of the first corner code connecting part is the same as the structure of the second corner code connecting part.