Multifunctional metal chain craftwork structure convenient to assemble

By combining flexible snap-fit ​​and rotating connection design, the problems of complex assembly and limited functionality of metal chain handicrafts are solved, enabling convenient assembly and multi-functional expansion, improving the wearing experience and production efficiency.

CN224408785UActive Publication Date: 2026-06-26JIANGXI YONGXIANG COPPER CRAFTS CO LTD
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Patent Information

Application Number
CN202521882013.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2026-06-26
Estimated Expiration
2035-09-02

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Abstract

The utility model relates to metal chain craftwork technical field, and disclose a kind of multifunctional metal chain craftwork structure of easy assembly, including chain link assembly one, the chain link assembly one includes open chain ring one, connecting piece one, closed loop piece, elastic member and bolt rod, the main body of chain link assembly one is open chain ring one, the bottom of open chain ring one is closed loop piece, the closed loop piece is slidably matched with open chain ring one inside and is clamped, and open chain ring one and closed loop piece form complete rectangle frame structure, and open chain ring one side edge inside is equipped with elastic member, open chain ring one side away from closed loop piece is equipped with connecting piece one, bolt rod is equipped between connecting piece one and open chain ring one, further include chain link assembly two, set in chain link assembly one bottom shaft end clamping, chain link assembly two with The chain link assembly one structure is identical, and the metal chain craftwork of the utility model significantly improves the assembly convenience and functional diversity, and greatly improves assembly efficiency and wearing comfort.
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Description

Technical Field

[0001] This utility model relates to the field of metal chain handicrafts technology, specifically a multifunctional metal chain handicraft structure that is easy to assemble. Background Technology

[0002] In the field of metal crafts, chain ornaments are highly favored due to their diverse shapes and strong adaptability, and are widely used in jewelry, pendants and other products. As consumers' demand for personalization and customization increases, metal chain crafts need to have the characteristics of flexible assembly and multi-functional expansion to meet the wearing and decoration needs of different scenarios. At the same time, in the craft production process, convenient assembly structure can effectively improve production efficiency, reduce labor costs, and shorten product delivery cycle, which is crucial to the market competitiveness of enterprises.

[0003] However, existing metal chain handicrafts have many problems in practical applications. Traditional chains mostly use welding or riveting to fix the links. The assembly process relies on professional tools and complex processes, which is not only time-consuming, but also cannot be adjusted in length according to needs. If forcibly disassembled, the chain structure is easily damaged. In addition, most chains have a single function, making it difficult to add decorative accessories or personalize them, which limits the creativity and functional expansion of the handicrafts. Although some chains are designed with simple connection structures, they have poor stability and are prone to loosening and falling off during use, affecting the safety and aesthetics of wearing them. They are difficult to meet consumers' demand for high-quality and diversified handicrafts. Therefore, we propose a multi-functional metal chain handicraft structure that is easy to assemble. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multifunctional metal chain craft structure that is easy to assemble, thus solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a multifunctional metal chain craft structure that is easy to assemble, comprising:

[0006] A chain link assembly 1 includes an open chain link 1, a connector 1, a closed loop component, an elastic component, and a bolt rod. The main body of the chain link assembly 1 is the open chain link 1, and the bottom of the open chain link 1 is the closed loop component. The closed loop component is corresponding to the internal sliding engagement of the open chain link 1, and the open chain link 1 and the closed loop component form a complete rectangular frame structure. An elastic component is provided inside one side of the open chain link 1, and the elastic component is corresponding to and fits against the closed loop component. A connector 1 is provided on the side of the open chain link 1 away from the closed loop component, and a bolt rod is provided between the connector 1 and the open chain link 1.

[0007] Chain link assembly two is disposed at the bottom shaft end of chain link assembly one and is snapped together. Chain link assembly two has the same structure as chain link assembly one.

[0008] Preferably, the chain opener ring is a rectangular frame structure with a notch at the bottom shaft end. The long side of the chain opener ring corresponding to the notch end is provided with a locking groove, and the short side of the chain opener ring corresponding to the notch end is provided with a cylindrical cavity. An elastic element is placed inside the cylindrical cavity, and a sliding hole is provided at the shaft end of the cylindrical cavity corresponding to the notch end. The chain opener ring is provided with a connecting hole opposite to the notch end.

[0009] Preferably, the open chain ring has a multi-functional reinforcing rib welded inside. The multi-functional reinforcing rib has an X-shaped structure, and four sets of axially symmetrically distributed connecting holes are opened on the end face of the multi-functional reinforcing rib.

[0010] Preferably, the bottom of the connector has two concentrically distributed connecting holes three, which are located on the two axial sides of the connecting hole one, and the bolt rod passes through the two connecting holes three and the connecting hole one respectively. The top of the connector has two axially symmetrically distributed snap-fit ​​blocks on two opposite sides.

[0011] Preferably, the side wall of the closed-loop component is provided with two axially symmetrically distributed connecting rods, and the two connecting rods form a connecting groove. The shaft ends of the two connecting rods are engaged with the inside of the clamping groove. The side wall of the closed-loop component is provided with a sliding rod, which is perpendicular to the connecting rod. The shaft end of the sliding rod is provided with a limiting slider, which is placed inside the cylindrical cavity for sliding engagement. The shaft end of the limiting slider away from the side of the sliding rod is in contact with the shaft end of the elastic element. The sliding rod is in sliding engagement with the sliding hole.

[0012] Preferably, the main body of the second chain link assembly is an open-loop chain link, and the top of the open-loop chain link is provided with a second connector, and the second connector has the same structure as the first connector, and the second connector is engaged with the connecting groove.

[0013] Compared with the prior art, this utility model provides a multifunctional metal chain craft structure that is easy to assemble, and has the following beneficial effects:

[0014] This easy-to-assemble, multi-functional metal chain craft structure significantly enhances assembly convenience and functional versatility. For assembly, it employs a combination of elastic snap-fit ​​and rotating connections, allowing for tool-free assembly and disassembly of the chain links, greatly improving efficiency. The number of links can be freely increased or decreased to precisely adapt to different wearing needs or decorative scenarios. In terms of functional expansion, the multi-functional reinforcing ribs and connecting holes provide a stable mounting position for the craft, allowing for the quick attachment of pendants, badges, and other accessories to meet personalized decorative needs. The rotating structure of the connectors gives the chain shape flexibility, allowing the wearer to adjust its shape as desired. Furthermore, the continuous pre-tension of the elastic components ensures the stability of the chain link connection, effectively improving the durability and safety of the craft, balancing practicality and aesthetics. Attached Figure Description

[0015] Figure 1This is a cross-sectional schematic diagram of the chain link assembly of the multifunctional metal chain craft structure that is easy to assemble according to this utility model.

[0016] Figure 2 This is a schematic diagram of the chain link assembly of this utility model;

[0017] Figure 3 This is a cross-sectional view of the open chain ring of this utility model.

[0018] In the diagram: 1. Opening chain link one; 2. Opening chain link two; 3. Connector one; 4. Closed-loop component; 5. Elastic component; 6. Connector two; 7. Connecting hole one; 8. Multifunctional reinforcing rib; 9. Connecting hole two; 10. Clamping groove; 11. Connecting hole three; 12. Clamping block; 13. Connecting rod; 14. Sliding rod; 15. Limiting slider; 16. Cylindrical cavity; 17. Sliding hole; 18. Bolt rod; 19. Connecting groove. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3 A multifunctional metal chain craft structure that is easy to assemble, comprising:

[0021] Chain link assembly one includes an open chain link one 1, a connector one 3, a closed ring component 4, an elastic component 5, and a bolt rod 18. The main body of the chain link assembly one is the open chain link one 1, and the bottom of the open chain link one 1 is the closed ring component 4. The closed ring component 4 is corresponding to the internal sliding fit of the open chain link one 1, and the open chain link one 1 and the closed ring component 4 form a complete rectangular frame structure. The side of the open chain link one 1 is provided with an elastic component 5, which is corresponding to the closed ring component 4. The open chain link one 1 is provided with a connector one 3 on the side away from the closed ring component 4. The connector one 3 and the open chain link one 1 are provided with a bolt rod 18, and the connector one 3 and the open chain link one 1 can rotate through the bolt rod 18.

[0022] Chain link assembly two is set at the bottom shaft end of chain link assembly one and snapped together. Chain link assembly two has the same structure as chain link assembly one. The entire metal chain is composed of multiple chain link assemblies one and chain link assembly two connected together.

[0023] Furthermore, the zipper ring 1 is a rectangular frame structure with a notch at the bottom shaft end. The long side of the zipper ring 1 corresponding to the notch end is provided with a locking groove 10, and the short side of the zipper ring 1 corresponding to the notch end is provided with a cylindrical cavity 16. The elastic element 5 is placed inside the cylindrical cavity 16, and the shaft end of the cylindrical cavity 16 corresponding to the notch end is provided with a sliding hole 17. The zipper ring 1 is provided with a connecting hole 7 away from the notch end. The elastic element 5 is always in a compressed state inside the cylindrical cavity 16, and its rebound force acts on the closing ring 4, so that the rectangular frame structure composed of the zipper ring 1 and the closing ring 4 always remains stable, ensuring the wearing quality.

[0024] Furthermore, the inner part of the chain link 1 is welded with a multi-functional reinforcing rib 8, which has an X-shaped structure and four sets of axially symmetrically distributed connecting holes 9 on its end face. While ensuring the overall structural compressive strength of the chain link 1, the multi-functional reinforcing rib 8 can provide a stable support surface for the connection and installation of craft ornaments. The sides of the craft ornaments can be fixedly connected to the four sets of connecting holes 9 through the matching screws, so that the installation and connection of the craft ornaments is stable and adjustable, ensuring the aesthetics of the overall metal chain craft.

[0025] Furthermore, the bottom of connector 3 has two concentrically distributed connecting holes 11, which are located on the two axial sides of connecting hole 7. The bolt rod 18 passes through the two connecting holes 11 and connecting hole 7 respectively. The top of connector 3 has two axially symmetrically distributed locking blocks 12 on two opposite sides. Connector 3 can be rotated by the bolt rod 18, making the overall metal chain craftsmanship malleable and improving the wearing experience.

[0026] Furthermore, the side wall of the closed-loop component 4 is provided with two axially symmetrically distributed connecting rods 13, and the two connecting rods 13 form a connecting groove 19. The shaft ends of the two connecting rods 13 are correspondingly engaged with the inside of the clamping groove 10. The side wall of the closed-loop component 4 is provided with a sliding rod 14, which is perpendicular to the connecting rods 13. The shaft end of the sliding rod 14 is provided with a limiting slider 15, which is correspondingly placed inside the cylindrical cavity 16 for sliding engagement. The side shaft end of the limiting slider 15 away from the sliding rod 14 is correspondingly attached to the shaft end of the elastic element 5. The sliding rod 14 is correspondingly engaged with the sliding hole 17. When the chain link assembly one and the chain link assembly two are assembled, the closed-loop component 4 is... Axial compression is performed inside the cylindrical cavity 16, causing the elastic element 5 to be continuously compressed. When the two connecting rods 13 disengage from the locking groove 10, the locking fails, and the closed loop component 4 can be rotated as a whole. Then, the connecting element 6 at the top of the chain link assembly 2 is inserted into the connecting groove 19. The closed loop component 4 is rotated so that the two connecting rods 13 are aligned with the locking groove 10. The closed loop component 4 is released, and the rebound force of the elastic element 5 pushes the closed loop component 4 to move axially until the shaft ends of the two connecting rods 13 are inserted into the locking groove 10. At this point, the assembly and connection of the chain link assembly 1 and the chain link assembly 2 are completed. Disassembly is performed in reverse. The overall length can be adjusted by adjusting the number of connections.

[0027] Furthermore, the main body of the chain link assembly 2 is an open-loop chain link 2. The top of the open-loop chain link 2 is provided with a connector 2 6, and the connector 2 6 has the same structure as the connector 1 3. The connector 2 6 is engaged with the connecting groove 19.

[0028] Structural Description:

[0029] Opening link 1: Opening link 1 is a rectangular frame with a bottom notch. The long side of the notch is provided with a locking groove 10, and the short side has a cylindrical cavity 16 inside. A connecting hole 7 is provided at the end opposite to the notch. It cooperates with the closing ring 4 to form a complete frame and is the main structure of the chain link assembly 1.

[0030] Open-loop chain link 2: Open-loop chain link 2 has the same structure as open-loop chain link 1 and is the main structure of chain link component 2;

[0031] Connector 1 3: Connector 1 3 has two concentric connecting holes 3 11 at the bottom and a locking block 12 at the top. It is rotatably connected to the chain opener ring 1 1 through the bolt rod 18, giving the chain plasticity and improving the wearing experience;

[0032] Closed-loop component 4: The side wall of the closed-loop component 4 has a connecting rod 13 and a sliding rod 14, which slide and engage with the open-loop ring 1 to form a complete frame. Its connecting groove 19 is used to cooperate with the connecting component 6 to realize the assembly between the chain ring components.

[0033] Elastic element 5: The elastic element 5 is placed inside the cylindrical cavity 16 and is always in a compressed state. It acts on the closed loop 4 through the rebound force to ensure a stable connection between the open loop 1 and the closed loop 4 and to ensure the wearing quality.

[0034] Connector 2 6: Connector 2 6 has the same structure as connector 1 3. It can be inserted into the connecting groove 19 of the closed loop component 4 to realize the engagement of chain link assembly 1 and chain link assembly 2. It is a key component in chain assembly.

[0035] Connection hole 17: Connection hole 17 is located at the end of the open chain ring 1 away from the notch, and corresponds to connection hole 311 of connector 3, allowing bolt rod 18 to pass through and realize the rotational connection between the two;

[0036] Multifunctional reinforcing rib 8: The multifunctional reinforcing rib 8 is X-shaped and welded inside the open chain ring 1. The end face has four sets of connecting holes 2 9, which enhances the structural strength and provides a support surface for the installation of craft ornaments.

[0037] Connecting hole 2 9: Connecting holes 2 9 are symmetrically distributed on the end face of the multi-functional reinforcing rib 8. They can be used to fix decorative ornaments with matching screws, making the ornaments stable and easy to adjust, and increasing the aesthetics of the chain.

[0038] Locking groove 10: The locking groove 10 is located on the long side of the notch end of the open chain ring 1, and engages with the connecting rod 13 of the closed ring 4 to ensure the stability of the structure formed by the open chain ring 1 and the closed ring 4.

[0039] Connecting hole 311: Connecting holes 311 are concentrically distributed at the bottom of connector 3, corresponding to connecting hole 7 of open chain ring 1, for bolt rod 18 to pass through, so as to realize the rotational connection of connector 3;

[0040] Snap-fit ​​block 12: Snap-fit ​​blocks 12 are symmetrically arranged on the top of connector 3, which facilitates combination with other components and allows for more variations in the shape of metal chain handicrafts;

[0041] Connecting rod 13: Connecting rod 13 is symmetrically distributed on the side wall of closed-loop component 4. The shaft end is engaged with the locking groove 10 of open-loop ring 1, and a connecting groove 19 is formed between the two for connection between components.

[0042] Sliding rod 14: The sliding rod 14 is perpendicular to the connecting rod 13 and is located on the side wall of the closed loop component 4. The shaft end is provided with a limiting slider 15, which slides in conjunction with the sliding hole 17 to realize the compression sliding of the closed loop component 4.

[0043] Limiting slider 15: The limiting slider 15 is located at the shaft end of the sliding rod 14, slides in the cylindrical cavity 16, fits against the elastic element 5, limits the sliding stroke of the closed loop element 4 and transmits elastic force;

[0044] Cylindrical cavity 16: Cylindrical cavity 16 is opened inside the short side of the notch end of the open chain ring 1, and is used to place the elastic element 5, provide space for the sliding of the closed ring element 4 and limit its movement trajectory.

[0045] Sliding hole 17: The sliding hole 17 is opened at the shaft end of the corresponding notch in the cylindrical cavity 16, and cooperates with the sliding rod 14 of the closed loop component 4 to guide the sliding rod 14 to slide and ensure the movement stability of the closed loop component 4.

[0046] Bolt rod 18: Bolt rod 18 passes through the connecting hole 311 of connector 3 and the connecting hole 7 of open chain ring 1 to realize the rotational connection between the two, and is a key connecting component for the plasticity of the chain;

[0047] Connecting groove 19: The connecting groove 19 consists of two connecting rods 13 of the closed loop component 4, which are used to engage the connecting component 2 6 to realize the assembly connection between the chain link assembly 1 and the chain link assembly 2.

[0048] Working Principle: This easy-to-assemble multi-functional metal chain craft structure is installed correctly according to the diagram. Based on chain link assemblies, this structure achieves convenient assembly and functional expansion through a unique design. The main body of the first chain link assembly, the open link 1, is a rectangular frame with a bottom notch. The compressed elastic element 5 within the cylindrical cavity 16 of the short side of the notch continuously applies elastic force to the closed loop 4, forming a stable rectangular frame structure. When assembling the first and second chain link assemblies, pressing the closed loop 4 causes its sidewall sliding rod 14 to slide along the sliding hole 17 into the cylindrical cavity 16, driving the limiting slider 15 to compress the elastic element 5. Simultaneously, the connecting rod... 13 disengages from the locking groove 10 of the first open chain ring. At this time, rotate the closing ring 4 to insert the second connector 6, which has the same structure as the first connector 3, into the connecting groove 19 of the closing ring 4. Then rotate the closing ring 4 to align the connecting rod 13 with the locking groove 10. After releasing, the elastic element 5 rebounds and pushes the closing ring 4 to reset, realizing the quick locking and fixing of the two components. The X-shaped multi-functional reinforcing rib 8 inside the first open chain ring not only enhances the compressive strength, but also provides a stable mounting point for craft ornaments through the second connecting hole 9. Various decorative accessories can be fixed with screws. By repeating the above operation, the number of chain ring components can be increased or decreased, and the chain length can be flexibly adjusted to meet the needs of different usage scenarios.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional metal chain craft structure which is easy to assemble, characterized in that, include: Chain link assembly one, the chain link assembly one includes an open chain link one (1), a connector one (3), a closed ring part (4), an elastic part (5) and a bolt rod (18). The main body of the chain link assembly one is the open chain link one (1). The bottom of the open chain link one (1) is the closed ring part (4). The closed ring part (4) is corresponding to the sliding fit and snap-fit ​​with the inside of the open chain link one (1). The open chain link one (1) and the closed ring part (4) form a complete rectangular frame structure. The side of the open chain link one (1) is provided with an elastic part (5). The elastic part (5) is corresponding to the close ring part (4). The open chain link one (1) is provided with a connector one (3) on the side away from the closed ring part (4). The connector one (3) and the open chain link one (1) are provided with a bolt rod (18). Chain link assembly two is disposed at the bottom shaft end of chain link assembly one and is snapped in place. Chain link assembly two has the same structure as chain link assembly one.

2. The easily assembled multifunctional metal chain craft structure according to claim 1, characterized in that, The chain opener ring (1) is a rectangular frame structure with a notch at the bottom shaft end. The long side of the chain opener ring (1) corresponding to the notch end is provided with a locking groove (10). The short side of the chain opener ring (1) corresponding to the notch end is provided with a cylindrical cavity (16). An elastic element (5) is placed inside the cylindrical cavity (16). The shaft end of the cylindrical cavity (16) corresponding to the notch is provided with a sliding hole (17). The chain opener ring (1) is provided with a connecting hole (7) away from the notch end.

3. The easily assembled multifunctional metal chain craft structure according to claim 2, characterized in that, The open chain ring (1) is internally welded with a multi-functional reinforcing rib (8), which has an X-shaped structure and four sets of axially symmetrical connecting holes (9) are provided on the end face of the multi-functional reinforcing rib (8).

4. The easily assembled multifunctional metal chain craft structure according to claim 1, characterized in that, The bottom of the connector 1 (3) has two concentrically distributed connecting holes 3 (11), which are located on the two axial sides of the connecting hole 1 (7). The bolt rod (18) passes through the two connecting holes 3 (11) and the connecting hole 1 (7). The top two opposite sides of the connector 1 (3) are provided with two axially symmetrically distributed snap-fit ​​blocks (12).

5. The easily assembled multifunctional metal chain craft structure according to claim 1, characterized in that, The closed-loop component (4) has two axially symmetrically distributed connecting rods (13) on its side wall, and the two connecting rods (13) form a connecting groove (19). The shaft ends of the two connecting rods (13) are correspondingly engaged with the inside of the clamping groove (10). The closed-loop component (4) has a sliding rod (14) on its side wall. The sliding rod (14) is perpendicular to the connecting rod (13), and the shaft end of the sliding rod (14) is provided with a limiting slider (15). The limiting slider (15) is correspondingly placed inside the cylindrical cavity (16) for sliding engagement. The shaft end of the limiting slider (15) away from the sliding rod (14) is correspondingly engaged with the shaft end of the elastic component (5). The sliding rod (14) is correspondingly engaged with the sliding hole (17).

6. The easily assembled multifunctional metal chain craft structure according to claim 1, characterized in that, The main body of the chain link assembly is an open-loop chain link (2). The top of the open-loop chain link (2) is provided with a connector (6), and the connector (6) has the same structure as the connector (3). The connector (6) is engaged with the connecting groove (19).