Photo frame corner code pendant

By designing the picture frame corner bracket, and utilizing the mounting holes on the straight edge and the fine-tuning components on the beveled edge, the structural damage caused by drilling during the picture frame hanging process is solved, thereby improving structural strength and extending service life, and adapting to various hanging and wall conditions.

CN224936836UActive Publication Date: 2026-11-06FOSHAN CITY SANSHUI CHANGHE IND CO LTD
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Patent Information

Application Number
CN202522787783.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-11-06
Estimated Expiration
2035-12-29

AI Technical Summary

Technical Problem

Existing picture frames require multiple sets of holes to be drilled in the frame and back panel during the hanging process, which damages the brittle material of the frame structure, resulting in high process complexity and shortened service life.

Method used

Design a picture frame corner bracket hanger that is fixed by mounting holes on the straight side, combined with elongated holes and fine-tuning components on the beveled side, to accommodate hooks or nails for hanging, reducing the number of holes to be drilled, and improving structural strength through reinforcing layers and rounded corner design.

Benefits of technology

It effectively avoids structural damage caused by drilling, improves the structural strength and service life of the picture frame, adapts to different hanging needs and wall types, and improves installation flexibility and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a picture frame corner bracket pendant, including a straight edge and a beveled edge. The first ends of the two straight edges are connected perpendicularly to each other, and the beveled edge is obliquely connected to the ends of the two straight edges, forming an arched structure. The straight edge has a mounting hole that penetrates through the straight edge along its thickness direction. The beveled edge has an elongated hole that penetrates through the beveled edge along its thickness direction. A fine-tuning component is provided on the beveled edge for slightly adjusting the tilt angle of the corner bracket pendant. Compared to traditional designs that require multiple sets of mounting holes to be machined on the picture frame frame and back panel for both the corner bracket and the pendant, this corner bracket pendant only needs the mounting hole on the straight edge to be fixed to the frame, significantly reducing the number of holes required on the picture frame. This design effectively avoids structural damage to brittle materials such as wood and plastic caused by excessive drilling, reduces the probability of cracking and breakage at the drilling points, and improves the structural strength and service life of the picture frame.
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Description

Technical Field

[0001] This utility model relates to the field of picture frame hanging technology, specifically a picture frame corner bracket hanging device. Background Technology

[0002] Picture frames are common tools for mounting photos and paintings. Their assembly and hanging rely on two independent parts: corner brackets and hanging brackets. Both have a single function and are indispensable. Corner brackets are used to join adjacent frames of the picture frame to ensure the structural stability of the frame after it is formed; hanging brackets are used to hang the picture frame on the wall and provide the necessary hanging force points.

[0003] Therefore, when hanging picture frames, numerous mounting holes need to be drilled in the frame edges or back panel. Corner brackets require drilling holes for fasteners, and hanging ornaments also require additional drilling for positioning. This extensive drilling not only increases the number of production steps and the complexity of the process, but also damages the structural integrity of the picture frame. This is especially true for frames made of brittle materials such as wood and plastic, where the drilled holes are prone to cracking and breakage, shortening the product's lifespan. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model proposes a picture frame corner bracket hanger. Compared to traditional designs that require multiple sets of mounting holes to be machined on the frame edge and back panel for both the corner bracket and the hanger, this corner bracket hanger only needs to be fixed to the frame through the mounting holes on its straight edge, significantly reducing the number of holes required on the picture frame. This design effectively avoids structural damage to brittle materials such as wood and plastic caused by excessive drilling, reduces the probability of cracking and breakage at the drilling points, and improves the structural strength and service life of the picture frame.

[0005] To achieve this objective, the present invention adopts the following technical solution: A photo frame corner bracket includes a straight edge and a beveled edge. The first ends of the two straight edges are connected perpendicularly to each other, and the beveled edge is obliquely connected to the ends of the two straight edges. The beveled edge has an arched structure. The straight edge is provided with a mounting hole that extends through the straight edge along the thickness direction. The beveled edge is provided with an elongated hole that extends through the beveled edge along the thickness direction. The beveled edge is provided with a fine-tuning component for slightly adjusting the tilt angle of the corner bracket.

[0006] The inclined portion includes a mounting sub-part, an arc-shaped sub-part, and a horizontal sub-part. The two ends of the horizontal sub-part are respectively connected to the two arc-shaped sub-parts. The bottom of the arc-shaped sub-part is connected to the mounting sub-part. The mounting sub-part is connected to the end of the straight portion.

[0007] It also includes a first reinforcing layer, which is horizontally disposed at the first end of the straight edge portion and horizontally covers the junction of the two straight edges portions.

[0008] It also includes a second reinforcing layer, which is disposed on the top of the mounting sub-part, and the thickness of the second reinforcing layer gradually increases from the middle to the edge.

[0009] The fine-tuning component includes multiple trapezoidal blocks, which are installed side by side on the edge of the inclined side away from the straight side. The gap between two adjacent trapezoidal blocks is the hanging area of ​​the hanging nail.

[0010] The end of the arc-shaped sub-part near the mounting sub-part has a clearance gap with the end of the straight edge part.

[0011] The straight edge and the beveled edge are integrally formed.

[0012] The joints between the two straight edges and the joints between the straight edges and the inclined edges are all provided with rounded corners.

[0013] The technical solution of this utility model can include the following beneficial effects: 1. Compared to traditional designs that require multiple sets of mounting holes for corner brackets and hangers on the frame's edge and back panel, this corner bracket hanger only needs to be fixed to the frame through the mounting holes on its straight edge, significantly reducing the number of holes required on the frame. This design effectively avoids structural damage to brittle materials such as wood and plastic caused by excessive drilling, reduces the probability of cracking and breakage at the drilling points, and improves the structural strength and lifespan of the frame.

[0014] 2. To accommodate different users' hanging habits and wall conditions, this structure can be adapted to both hooks and nails: When using hooks, the hooks can be directly inserted into the elongated holes on the beveled side, allowing for minor adjustments to the frame's horizontal position using the extra length of the holes; when using nails, the nails can be inserted into the dedicated hanging area between adjacent trapezoidal blocks, utilizing the stepped structure of the trapezoidal blocks to precisely adjust the frame's tilt angle. This dual-mode adaptability design eliminates the need to replace corner brackets, meeting various hanging needs and adapting to various wall types such as latex-painted walls, tiled walls, and wooden walls. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of the corner code pendant of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of one embodiment of the corner code pendant of this utility model. Figure 2 ; Among them, 1. Straight edge; 11. Mounting hole; 2. Beveled edge; 21. Long strip hole; 22. Fine adjustment component; 221. Trapezoidal block; 23. Mounting sub-part; 24. Arc-shaped sub-part; 25. Horizontal sub-part; 3. First reinforcing layer; 4. Second reinforcing layer; 5. Clearance gap. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] In the description of this utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," and "connection" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The following is combined with Figures 1 to 2 This describes a frame corner bracket pendant according to an embodiment of the present utility model.

[0021] A picture frame corner bracket includes a straight edge 1 and a beveled edge 2. The first ends of the two straight edges 1 are connected perpendicularly to each other, and the beveled edge 2 is obliquely connected to the ends of the two straight edges 1. The beveled edge 2 is an arched structure. The straight edge 1 is provided with a mounting hole 11, which penetrates the straight edge 1 along the thickness direction. The inclined edge 2 is provided with an elongated hole 21, which penetrates the inclined edge 2 along the thickness direction. The inclined edge 2 is provided with a fine-tuning component 22, which is used to slightly adjust the tilt angle of the corner bracket pendant.

[0022] The design of the two straight edges 1 being perpendicularly connected at their ends enables the two straight edges 1 to reliably position and support the adjacent frame, effectively limiting the lateral and longitudinal displacement of the frame after splicing, avoiding problems such as loosening, misalignment, and deformation of the frame during transportation and hanging, and significantly improving the overall structural stability and splicing accuracy of the frame.

[0023] The sloping side 2 adopts an arched structure. Compared with the traditional flat structure, it can distribute the load during suspension through mechanical structural optimization, and evenly transfer the weight of the picture frame to the two straight sides 1 and the picture frame frame, avoiding bending and breakage of the sloping side 2 due to local stress concentration. At the same time, the protruding design of the arched structure can create a reserved gap between the sloping side 2 and the wall surface, preventing the wall surface from being scratched or the back of the picture frame from being worn due to excessive tightness after the picture frame is hung.

[0024] The beveled side 2 features a through-hole 21, serving as a load-bearing structure for hanging the picture frame. Its elongated design accommodates positional deviations in the wall-mounted fasteners, allowing for horizontal adjustments to the frame's position within a certain range during hanging, eliminating the need for drilling new holes in the wall or adjusting the fasteners. Simultaneously, the elongated hole 21, in conjunction with the wall-mounted fasteners, enables fine-tuning of the frame's hanging height, enhancing installation flexibility and ease of operation. Furthermore, the beveled side 2 incorporates a fine-tuning component 22, allowing for precise and subtle adjustments to the frame's tilt angle after hanging, quickly calibrating the frame's level.

[0025] Compared to traditional designs that require multiple sets of mounting holes 11 to be drilled on the frame edge and back panel for corner brackets and hangers, this corner bracket hanger only needs to be fixed to the frame through the mounting holes 11 on the straight edge 1, significantly reducing the number of holes required on the frame. This design effectively avoids structural damage to brittle materials such as wood and plastic caused by excessive drilling, reduces the probability of cracking and breakage at the drilling points, and improves the structural strength and service life of the frame.

[0026] The inclined portion 2 includes a mounting sub-portion 23, an arc-shaped sub-portion 24, and a horizontal sub-portion 25. The two ends of the horizontal sub-portion 25 are respectively connected to the two arc-shaped sub-portions 24. The bottom of the arc-shaped sub-portion 24 is connected to the mounting sub-portion 23. The mounting sub-portion 23 is connected to the end of the straight portion 1.

[0027] Mounting sub-part 23 is specifically designed to connect with straight edge part 1. Its connection structure can form a stable assembly relationship with the end of straight edge part 1, ensuring effective force transmission. Arc-shaped sub-part 24 serves as the core mechanical load-bearing unit, while horizontal sub-part 25 can serve as an auxiliary load-bearing surface for suspension or adjustment, avoiding local stress overload caused by a single structure bearing multiple functions at the same time, and improving the practicality and reliability of the overall structure.

[0028] The raised structure of the arc-shaped sub-part 24 further optimizes the stress distribution during suspension. Compared with the integral arch structure, the segmented arc-shaped sub-part 24 can distribute the suspension load of the picture frame more evenly to the mounting sub-parts 23 on both sides, and then transfer it to the straight edge part 1 and the picture frame frame. This greatly reduces the risk of local stress concentration, avoids bending and breakage of the inclined edge part 2 due to long-term load, and significantly improves the load-bearing capacity and service life of the corner bracket.

[0029] It also includes a first reinforcing layer 3, which is horizontally disposed at the first end of the straight edge portion 1 and horizontally covers the junction of the two straight edge portions 1.

[0030] The first reinforcing layer 3 provides rigid reinforcement to the vertical connection nodes of the straight edge 1, enhancing the structural strength and deformation resistance of this stress concentration area. The head of the straight edge 1, as the core support point of the inner corner of the frame, bears the compressive force from the adjacent frame and the load transfer during suspension. The first reinforcing layer 3 effectively prevents cracking, warping, or loosening of the head of the straight edge 1 due to long-term stress, ensuring the overall stability of the frame after assembly and extending the service life of the corner brackets.

[0031] It also includes a second reinforcing layer 4, which is disposed on the top of the mounting sub-part 23, and the thickness of the second reinforcing layer 4 gradually increases from the middle to the edge.

[0032] The second reinforcing layer 4 is located on top of the mounting sub-section 23, and its thickness increases linearly from the middle to the outside, which can achieve gradient distribution of force and directional reinforcement of load-bearing capacity. When the picture frame is suspended, the load is transmitted to the mounting sub-section 23 through the arc-shaped sub-section 24, so the edge area of ​​the mounting sub-section 23 needs to bear the supporting force transmitted by the straight edge 1, and the load is greater. The corresponding thicker reinforcing layer can directionally improve the bending and compression resistance of this area. The middle area has relatively less force, and a thinner layer can avoid material redundancy and achieve a balance between structural strength and lightweight design.

[0033] The first reinforcing layer 3 and the second reinforcing layer 4 reinforce the two core stress areas, namely the connection node of the straight edge 1 and the connection hub between the inclined edge 2 and the straight edge 1, forming a full-link load reinforcement system. This can significantly improve the overall load-bearing capacity of the corner bracket and adapt to the hanging requirements of large-size, heavy-material picture frames. At the same time, the double-reinforcing layer design does not change the assembly method of the corner bracket with the picture frame frame and wall fixing parts, and does not add extra installation procedures, thus balancing structural strength improvement and assembly convenience.

[0034] The fine-tuning component 22 includes multiple trapezoidal blocks 221, which are installed side by side on the edge of the inclined side 2 away from the straight side 1. The gap between two adjacent trapezoidal blocks 221 is the hanging area of ​​the hanging nail.

[0035] The fine-tuning component 22 adopts a trapezoidal block 221 structure. The hypotenuse of the trapezoidal block 221 is an inclined force-bearing surface. When the hanging nail moves or switches the hanging position in the gap between adjacent trapezoidal blocks 221, the height of the contact fulcrum between the hanging nail and the trapezoidal block 221 will change in a step-like manner, thereby realizing the fine adjustment of the hanging angle of the picture frame.

[0036] Compared to traditional non-adjustable brackets, there is no need to pry up the picture frame or re-drill holes in the wall. The level of the picture frame can be quickly calibrated simply by changing the contact position between the bracket and the trapezoidal block 221, which greatly reduces the difficulty and time required for leveling.

[0037] Meanwhile, the arrangement of multiple trapezoidal blocks 221 can distribute the force on the hooks at a single point, avoiding deformation or damage to the trapezoidal blocks 221 caused by local stress concentration, thus improving the durability of the fine-tuning component 22. The gaps between adjacent trapezoidal blocks 221 serve as a dedicated hook suspension area, which can limit the hooks and prevent them from sliding horizontally during suspension, ensuring the positional stability of the picture frame after it is suspended and preventing the picture frame from tilting or falling due to hook displacement. In addition, the size of this suspension area can be designed according to common hook specifications, improving the compatibility of the fine-tuning component 22 with commonly used hooks on the market.

[0038] Furthermore, to cater to different users' hanging habits and wall conditions, this structure can be adapted to both hooks and nails: when using hooks, the hook can be directly hooked into the elongated hole 21 on the beveled side 2, allowing for minor adjustments to the frame's horizontal position using the extra length of the elongated hole 21; when using nails, the nails can be inserted into the dedicated hanging area between adjacent trapezoidal blocks 221, utilizing the stepped structure of the trapezoidal blocks 221 to achieve precise fine-tuning of the frame's tilt angle. This dual-mode adaptability design eliminates the need to replace corner brackets, meeting diverse hanging needs and adapting to various wall types such as latex-painted walls, tiled walls, and wooden walls.

[0039] The end of the arc-shaped sub-part 24 near the mounting sub-part 23 is provided with a clearance gap 5 between it and the end of the straight edge part 1.

[0040] The clearance gap 5 breaks the rigid contact between the curved sub-part 24 and the straight edge part 1, preventing stress superposition at the connection point between the two structural units with different stress characteristics. When the picture frame is suspended, the straight edge part 1 bears the splicing support force of the frame, while the curved sub-part 24 bears the suspension load. The clearance gap 5 makes the force transmission path between the two clearer, preventing cracks and breaks at the connection point due to stress concentration, and further improving the structural strength and service life of the corner bracket.

[0041] The straight edge 1 and the inclined edge 2 are integrally formed.

[0042] The straight edge 1 and the beveled edge 2 are integrally molded, eliminating the connection gaps and assembly tolerances of the split structure, making the corner bracket hanger a continuous and complete load-bearing unit. The load when the picture frame is suspended can be evenly distributed to each functional area through the integrated structure, avoiding the risk of stress concentration, breakage and detachment at the connection points of the split structure. This significantly enhances the bending and tensile strength of the corner bracket hanger, making it suitable for the suspension needs of large-size and heavy-material picture frames.

[0043] The joints of the two straight edges 1 and the joints of the straight edges 1 and the inclined edges 2 are all provided with rounded corners.

[0044] The rounded corners at the joints of the two straight edges 1 and the joints between straight edge 1 and the inclined edge 2 transform the stress concentration points of traditional right-angle joints into stress dispersion surfaces. When hanging a picture frame, the joints are critical nodes for load transfer. Right-angle structures are prone to cracking and breakage due to stress concentration. Rounded corner transitions can guide the load to be evenly distributed to the surrounding area, reducing local stress peaks and significantly improving the structural strength and fatigue life of the corner bracket, thus meeting the needs of long-term hanging use.

[0045] The rounded corner design eliminates sharp edges at the joints, effectively preventing scratches and damage to the inner side of the frame and the back panel surface caused by the corner brackets during assembly, handling, and hanging. At the same time, it prevents sharp edges from scratching the operator's hands, improving safety. In addition, the rounded corners make smooth contact with the wall after hanging, which greatly reduces the risk of scratching the wall compared to right angles, providing dual protection for both the frame and the wall.

[0046] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A picture frame corner bracket pendant, characterized in that, It includes a straight edge and a beveled edge, the first ends of the two straight edges are connected perpendicularly to each other, and the beveled edge is inclined to connect the ends of the two straight edges, and the beveled edge is an arched structure; The straight edge is provided with a mounting hole that extends through the straight edge along the thickness direction. The beveled edge is provided with an elongated hole that extends through the beveled edge along the thickness direction. The beveled edge is provided with a fine-tuning component for slightly adjusting the tilt angle of the corner bracket.

2. A picture frame corner bracket as described in claim 1, characterized in that, The inclined portion includes a mounting sub-part, an arc-shaped sub-part, and a horizontal sub-part. The two ends of the horizontal sub-part are respectively connected to the two arc-shaped sub-parts. The bottom of the arc-shaped sub-part is connected to the mounting sub-part. The mounting sub-part is connected to the end of the straight portion.

3. A picture frame corner bracket as described in claim 2, characterized in that, It also includes a first reinforcing layer, which is horizontally disposed at the first end of the straight edge portion and horizontally covers the junction of the two straight edges portions.

4. A picture frame corner bracket as described in claim 3, characterized in that, It also includes a second reinforcing layer, which is disposed on the top of the mounting sub-part, and the thickness of the second reinforcing layer gradually increases from the middle to the edge.

5. A picture frame corner bracket pendant according to claim 4, characterized in that, The fine-tuning component includes multiple trapezoidal blocks, which are installed side by side on the edge of the inclined side away from the straight side. The gap between two adjacent trapezoidal blocks is the hanging area of ​​the hanging nail.

6. A picture frame corner bracket according to claim 5, characterized in that, The end of the arc-shaped sub-part near the mounting sub-part has a clearance gap with the end of the straight edge part.

7. A picture frame corner bracket as described in claim 6, characterized in that, The straight edge and the beveled edge are integrally formed.

8. A picture frame corner bracket according to claim 1, characterized in that, The joints between the two straight edges and the joints between the straight edges and the inclined edges are all provided with rounded corners.