Combined assembled photo frame

By incorporating a combination of knobs and lock holes on the metal photo frame, the problems of complex assembly and inconvenient photo replacement are solved, enabling tool-free quick assembly and disassembly and stable connection, thus improving the user experience and practicality.

CN223830751UActive Publication Date: 2026-01-27FOSHAN HONGHOU ALUMINUM PROD CO LTD
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Patent Information

Application Number
CN202521146516.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-05
Publication Date
2026-01-27
Estimated Expiration
2035-06-05

AI Technical Summary

Technical Problem

Existing metal photo frames are complex to assemble, require tools to tighten screws, and are inconvenient to change photos.

Method used

A modular photo frame was designed. Knobs are set at the top and bottom of the frame, and lock holes that cooperate with the knobs are set on the back frame. The locking block at the bottom of the knob locks or unlocks it with the lock hole. Rotating the knob allows for quick assembly and disassembly. Combined with limit rings and snap rings, tool-free quick assembly is achieved.

Benefits of technology

It enables quick assembly and disassembly of the photo frame without tools, improving assembly efficiency and user experience. The limiting ring prevents the transparent panel from shaking, and the snap ring connection improves the stability of the locking structure, enhancing the practicality and aesthetics of the photo frame.

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Abstract

The utility model discloses a combined type assembled photo frame which comprises a frame body, a transparent plate, a middle frame and a rear frame which are connected in sequence. A limiting check ring is arranged at the front end of the frame body; the top and the bottom of the frame body are respectively provided with a through hole; a rotary knob is arranged on the through hole and is connected with the through hole through a clamp spring; the top and the bottom of the rear frame are respectively provided with a lock hole matched with the knob, the knob comprises a lock block, and the lock hole is provided with an opening for the lock block to enter; locking or unlocking is carried out through the locking block at the bottom of the rotary knob and the locking hole, rapid disassembly and assembly can be achieved by rotating the rotary knob, splicing of the photo frame can be rapidly completed without tools, and later photo replacement is facilitated. The photo frame is simple in structure, the transparent plate can be effectively prevented from shaking due to the fact that the transparent plate is fixed through the limiting check ring, the stability of the locking structure is improved due to the fact that the clamping spring is connected with the rotary knob, the rotary knob locking design is convenient to operate and good in locking effect, and the practicability and the use experience of the photo frame can be effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of picture frame technology, and more specifically, to a modular assembly picture frame. Background Technology

[0002] A picture frame is a frame used to mount and display flat items such as photos and paintings. They are mostly made of materials such as wood, metal, and plastic, serving both decorative and protective purposes. Existing wooden picture frames, limited by their material, are prone to warping and cracking due to temperature and humidity changes, and also suffer from poor wear resistance and heavy weight. Metal picture frames, on the other hand, are increasingly popular due to their sturdiness, durability, modern look, moisture resistance, and ease of cleaning. However, most current metal picture frames are complex to assemble, requiring tools to tighten screws for reinforcement, and are inconvenient for changing photos. Utility Model Content

[0003] This utility model provides a modular assembly photo frame to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: A modular assembly photo frame includes a frame body, a transparent plate, a middle frame, and a rear frame connected in sequence; a limiting retaining ring is provided at the front end of the frame body, and the limiting retaining ring abuts against the transparent plate; a through hole is provided at the top and bottom of the frame body; a rotatable knob is provided on the through hole, and the knob is connected to the through hole through a retaining spring; a locking hole is provided at the top and bottom of the rear frame to cooperate with the knob, the knob includes a locking block, and the locking hole has an opening for the locking block to enter; when the knob is rotated, the locking block and the locking hole are locked or unlocked.

[0004] Preferably, the knob further includes an operating part and a cylinder, the operating part being located at the top of the cylinder and the locking block being located at the bottom of the cylinder; the through hole is a countersunk hole, through which the cylinder and the locking block can pass; the retaining spring engages with the cylinder and limits the knob in the through hole; the operating part is provided with a slot.

[0005] Preferably, the lock block has a flat surface on both sides and an arc-shaped surface at both ends, and the distance between the two flat surfaces is less than the distance between the arc apexes of the two arc-shaped surfaces; the lock hole is a circular hole, and the width of the opening is greater than the distance between the two flat surfaces and less than the distance between the arc apexes of the two arc-shaped surfaces.

[0006] Preferably, the inner wall of the frame is provided with an inner sliding groove that mates with the through hole, the width of the inner sliding groove being greater than the width of the retaining spring; and the depth of the inner sliding groove being greater than the thickness of the retaining spring.

[0007] Preferably, the middle frame is made of EVA foam, and a hollow groove is provided inside the middle frame.

[0008] Preferably, the rear frame includes a back panel, and the back panel is provided with a top panel, a bottom panel, a left side panel and a right side panel on its four sides. The top panel and the bottom panel are respectively provided with the lock holes. During installation, the top panel, the bottom panel, the left side panel and the right side panel are respectively inserted into the gap between the frame and the middle frame.

[0009] Preferably, both the frame and the rear frame are made of stainless steel.

[0010] Preferably, the transparent plate is a PC plate, an acrylic plate, or a glass plate.

[0011] Preferably, the upper part of the back of the rear frame is provided with a hanging hole, and the lower part is provided with a support hole, and a detachable support rod is provided on the support hole.

[0012] Preferably, the support hole is an internally threaded hole, and the support hole is threadedly connected to the support rod; the rear frame is provided with an internal groove that matches the shape of the support rod, and a magnetic block is provided in the groove, which magnetically attracts the support rod.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: This utility model features knobs at the top and bottom of the frame, and locking holes on the rear frame that mate with the knobs. Locking or unlocking is achieved by using a locking block at the bottom of the knob with the locking hole. Rotating the knob allows for quick assembly and disassembly, enabling the frame to be assembled quickly without tools, facilitating photo replacement later. The structure of this utility model is simple; the limiting retaining ring effectively prevents the transparent plate from wobbling; the snap ring connecting the knob improves the stability of the locking structure; and the knob locking design is convenient to operate and provides a good locking effect, effectively enhancing the practicality and user experience of the photo frame. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the modular assembly photo frame according to an embodiment of the present utility model;

[0015] Figure 2 This is another structural view of the modular assembly photo frame according to an embodiment of the present utility model;

[0016] Figure 3 This is an exploded view of the modular assembly photo frame according to an embodiment of the present utility model;

[0017] Figure 4 This is an exploded view from another perspective of the modular assembly photo frame according to an embodiment of the present utility model;

[0018] Figure 5 This is a diagram showing the knob structure of the modular assembly photo frame according to an embodiment of the present invention;

[0019] Figure 6This is a schematic diagram of the docking state of the frame and the rear frame of the modular assembly photo frame according to an embodiment of the present utility model.

[0020] Figure 7 This is a schematic diagram of the locked state of the frame and the rear frame of the modular assembly photo frame according to an embodiment of the present utility model.

[0021] exist Figures 1 to 7 In the diagram, the correspondence between the component names and the drawing numbers is as follows:

[0022] 1--Frame, 11--Limiting ring, 12--Through hole, 13--Inner sliding groove, 2--Transparent plate, 3--Middle frame, 4--Rear frame, 41--Lock hole, 41a--Opening, 42--Hanging hole, 43--Support hole, 5--Knob, 51--Lock block, 51a--Flat surface, 51b--Curved surface, 52--Operating part, 53--Cylinder, 53a--Slot, 6--Snap ring. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Please refer to Figures 1 to 7This utility model provides a modular photo frame, comprising a frame body 1, a transparent plate 2, a middle frame 3, and a rear frame 4 connected in sequence; the front end of the frame body 1 is provided with a limiting retaining ring 11, which abuts against the transparent plate 2; the top and bottom of the frame body 1 are respectively provided with a through hole 12; the through hole 12 is provided with a rotatable knob 5, which is connected to the through hole 12 by a retaining spring 6; the top and bottom of the rear frame 4 are respectively provided with locking holes 41 that cooperate with the knob 5, the knob 5 includes a locking block 51, and the locking hole 41 is provided with an opening 41a for the locking block 51 to enter; when the knob 5 is rotated, the locking block 51 and the locking hole 41 are locked or unlocked.

[0027] In this embodiment, a frame 1, a transparent panel 2, a middle frame 3, and a rear frame 4 are sequentially connected and quickly secured using a knob 5. The locking block 51 at the bottom of the knob 5 engages with the locking hole 41 of the rear frame 4 to achieve a tight lock. The limiting retaining ring 11 at the front end of the frame 1 abuts tightly against the transparent panel 2, ensuring that the transparent panel 2 will not wobble or shift after installation, effectively preventing dust and moisture from entering the interior of the frame and protecting the photos or paintings to remain clear and intact for a long time. The knob 5 is connected to the through hole 12 of the frame 1 via a retaining spring 6. The elastic tension of the retaining spring 6 can fix the position of the knob 5, preventing the knob 5 from accidentally falling off or loosening during daily use, thus improving structural reliability.

[0028] The assembly process of this modular photo frame is as follows: First, the transparent plate 2 is embedded into the frame body 1 and fixed against the front limiting ring 11. The middle frame 3 and the back frame 4 are stacked sequentially, so that the opening 41a of the locking hole 41 of the back frame 4 is aligned with the locking block 51 at the bottom of the knob 5. Next, the knob 5 is rotated, and the bottom locking block 51 engages with the locking hole 41 of the back frame 4, securing all components. When it is necessary to disassemble and change the photo, the knob 5 is rotated in the opposite direction to unlock, and the back frame 4 and the middle frame 3 are removed sequentially. After changing the content, the above steps are repeated.

[0029] The locking block 51 and the lock hole 41 are engaged / disengaged by rotating the knob 5, enabling quick assembly and disassembly. The photo frame can be assembled quickly without the aid of tools, greatly improving assembly efficiency. It also avoids the tedious operation of tightening screws, making it especially suitable for non-professional users to install themselves, saving time and effort.

[0030] In this embodiment, the middle frame 3 is a detachable structure, allowing for replacement with different sizes, shapes, and configurations to suit various display needs, while also reserving space for future functional expansion. Furthermore, by concealing wiring through the cable channels in the middle frame 3, LED lights can be installed inside the frame to create a illuminated frame effect, enhancing the nighttime display. In addition, the middle frame 3 has built-in magnets that can attract small items such as notes and postcards, increasing its practicality.

[0031] Preferably, the knob 5 further includes an operating part 52 and a cylinder 53. The operating part 52 is located at the top of the cylinder 53, and the locking block 51 is located at the bottom of the cylinder 53. The through hole 12 is a countersunk hole, through which the cylinder 53 and the locking block 51 can pass. The retaining spring 6 engages with the cylinder 53 and limits the knob 5 in the through hole 12. The operating part 52 is provided with a slot 53a.

[0032] In this embodiment, the through hole 12 adopts a countersunk hole design, so that the knob 5 is basically flush with the surface of the frame 1 after installation, avoiding protrusions that affect the appearance and placement of the picture frame and improving aesthetics. At the same time, the through hole 12 allows the cylinder 53 and the locking block 51 to pass through smoothly. With the spring clip 6 engaging with the cylinder 53, the knob 5 is firmly fixed in the through hole 12, ensuring that the knob 5 can rotate freely while preventing it from falling off. This ensures the stability of the fit between the knob 5 and the lock hole 41 and improves the overall structural strength of the picture frame. The operating part 52 of the knob 5 is provided with a slot 53a, which can be used to rotate the knob 5 with a fingernail, or with the help of readily available objects such as keys, cards, and coins, to achieve quick locking or unlocking.

[0033] Preferably, the locking block 51 has a flat surface 51a on both sides and an arc-shaped surface 51b at both ends. The distance between the two flat surfaces 51a is less than the distance between the arc apexes of the two arc-shaped surfaces 51b. The lock hole 41 is a circular hole, and the width of the opening 41a is greater than the distance between the two flat surfaces 51a but less than the distance between the arc apexes of the two arc-shaped surfaces 51b. With this structural design, the width of the opening 41a only allows the locking block 51 to be inserted when the flat surfaces 51a are aligned, preventing misinstallation of the arc-shaped surfaces 51b. The arc-shaped surfaces 51b guide the locking block 51 to slide smoothly within the circular hole during rotation, reducing operating effort. After rotating 90°, the arc-shaped surfaces 51b fit against the inner wall of the lock hole 41. Because the distance between the arc apexes of the two arc-shaped surfaces 51b is greater than the width of the opening 41a, the locking block 51 cannot disengage from the opening 41a, thus securing it firmly.

[0034] Furthermore, the opening 41a adopts a figure-eight structure at its outer opening to facilitate the entry of the lock block 51 into the lock hole 41.

[0035] Preferably, the inner wall of the frame 1 is provided with an inner groove 13 that mates with the through hole 12. The width of the inner groove 13 is greater than the width of the retaining spring 6, and the depth of the inner groove 13 is greater than the thickness of the retaining spring 6. With the above structural arrangement, the retaining spring 6 is hidden in the inner groove 13, which does not affect the entry and exit of the middle frame 3 and the rear frame 4, making the assembly smoother.

[0036] Preferably, the middle frame 3 is made of EVA foam, and the middle frame 3 has a hollow groove inside.

[0037] Preferably, the rear frame 4 includes a back panel, and the back panel has a top plate, a bottom plate, a left side plate, and a right side plate on its four sides. The top plate and the bottom plate are each provided with a locking hole 41. During installation, the top plate, the bottom plate, the left side plate, and the right side plate are respectively inserted into the gap between the frame 1 and the middle frame 3. With the above structural design, the four side plates are inserted into the gap between the frame 1 and the middle frame 3, making installation simple and precise. The multi-sided fit forms a wrap-around fixation, and the locking holes 41 strengthen the connection, effectively preventing loosening.

[0038] Preferably, both the frame 1 and the rear frame 4 are made of stainless steel.

[0039] Preferably, the transparent plate 2 is a PC plate, an acrylic plate, or a glass plate.

[0040] Preferably, the upper part of the back of the rear frame 4 is provided with a hanging hole 42, and the lower part is provided with a support hole 43, with a detachable support rod provided on the support hole 43. In this embodiment, the hanging hole 42 can be directly used for wall hanging, and the support rod is installed after the support hole 43, so that the picture frame can be stably placed on a flat surface such as a desktop or bookshelf, adapting to different scenarios. The support rod is detachable, allowing for quick switching between hanging and placement modes without tools, meeting the diverse display needs of users. In addition, the hanging hole 42 and the support hole 43 are symmetrically positioned, ensuring a balanced center of gravity when hanging, and providing bottom support when placed, enhancing stability.

[0041] Preferably, the support hole 43 is an internally threaded hole, and the support hole 43 is threadedly connected to the support rod; the rear frame 4 is provided with an inner groove that matches the shape of the support rod, and a magnetic block is provided in the groove, which magnetically attracts the support rod. In this embodiment, the support rod is adaptable to different placement scenarios and can be freely switched between horizontal and vertical orientations by cooperating with the hanging hole 42. When not in use, the support rod can be attracted and hidden in the groove without affecting the suspension.

[0042] Compared with existing technologies, the advantages of this utility model are as follows: This utility model features knobs at the top and bottom of the frame, and locking holes on the rear frame that mate with the knobs. Locking or unlocking is achieved by using a locking block at the bottom of the knob with the locking hole. Rotating the knob allows for quick assembly and disassembly, enabling the frame to be assembled quickly without tools, facilitating photo replacement later. The structure of this utility model is simple; the limiting retaining ring effectively prevents the transparent plate from wobbling; the snap ring connecting the knob improves the stability of the locking structure; and the knob locking design is convenient to operate and provides a good locking effect, effectively enhancing the practicality and user experience of the photo frame.

[0043] 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 modular, assembled photo frame, characterized in that, The device includes a frame (1), a transparent plate (2), a middle frame (3), and a rear frame (4) connected in sequence. The front end of the frame is provided with a limiting ring (11), which abuts against the transparent plate. The top and bottom of the frame are respectively provided with a through hole (12). The through hole is provided with a rotatable knob (5), which is connected to the through hole by a snap ring (6). The top and bottom of the rear frame are respectively provided with a locking hole (41) that cooperates with the knob. The knob includes a locking block (51), and the locking hole is provided with an opening (41a) for the locking block to enter. When the knob is rotated, the locking block and the locking hole are locked or unlocked.

2. The modular photo frame according to claim 1, characterized in that, The knob also includes an operating part (52) and a cylinder (53). The operating part is located at one end of the cylinder, and the locking block is located at the other end of the cylinder. The through hole is a countersunk hole, through which the cylinder and the locking block can pass. The snap ring engages with the cylinder and limits the knob in the through hole. The operating part is provided with a slot (53a).

3. The modular photo frame according to claim 2, characterized in that, The lock block has a flat surface (51a) on both sides and an arc surface (51b) at both ends. The distance between the two flat surfaces is less than the distance between the arc apex of the two arc surfaces. The lock hole is a round hole. The width of the opening is greater than the distance between the two flat surfaces and less than the distance between the arc apex of the two arc surfaces.

4. The modular photo frame according to claim 3, characterized in that, The inner wall of the frame is provided with an inner groove (13) that matches the through hole. The width of the inner groove is greater than the width of the retaining spring, and the depth of the inner groove is greater than the thickness of the retaining spring.

5. The modular photo frame according to claim 1, characterized in that, The middle frame is made of EVA foam, and a hollow groove is provided inside the middle frame.

6. The modular photo frame according to claim 1, characterized in that, The rear frame includes a back panel, and the back panel is provided with a top panel, a bottom panel, a left side panel and a right side panel on its four sides. The top panel and the bottom panel are respectively provided with the lock holes. During installation, the top panel, the bottom panel, the left side panel and the right side panel are respectively inserted into the gap between the frame and the middle frame.

7. The modular photo frame according to claim 1, characterized in that, Both the frame and the rear frame are made of stainless steel.

8. The modular photo frame according to claim 1, characterized in that, The transparent panel is a PC board, acrylic board, or glass board.

9. The modular photo frame according to claim 1, characterized in that, The upper part of the back of the rear frame is provided with a hanging hole (42), and the lower part is provided with a support hole (43). A detachable support rod is provided on the support hole.

10. The modular photo frame according to claim 9, characterized in that, The support hole is an internally threaded hole, and the support hole is threadedly connected to the support rod; the rear frame is provided with an internal groove that matches the shape of the support rod, and a magnetic block is provided in the groove, which magnetically attracts the support rod.