Jewelry chain connecting buckle

Abstract

The utility model discloses a jewelry chain connecting buckle, which relates to the technical field of connecting buckles, and comprises an upper shell and a lower shell, a mounting groove is arranged in the middle of the upper shell and the lower shell, a limiting block is arranged in the mounting groove, a movable hole is arranged in the limiting block, and a rotating core matched with the mounting groove is arranged above the movable hole. Rotating shafts matched with the movable holes are arranged on the two sides of the exterior of the rotating core, an elastic connecting mechanism is arranged in the rotating core, a detachable upper shell is arranged on the top of the lower shell, protective layers are arranged on the outer sides of the upper shell and the lower shell, and locking mechanisms are arranged on the side faces of the upper shell and the lower shell and located at the bottom of the rotating core. According to the jewelry chain, the detachable design is introduced, and the protective layer and the reinforced lock catch structure are arranged, so that the durability and the safety of the jewelry chain are remarkably improved, and the wearing experience of a user is also greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and more particularly to fasteners for jewelry chains. Background Technology

[0002] In the field of jewelry and accessories, jewelry chains are exquisite works of art that showcase personal taste and style. Every detail of their design and craftsmanship is crucial. Among them, the clasp, as a key component of the jewelry chain, not only serves to connect the chain and ensure a secure fit, but also directly affects the user's wearing experience and overall aesthetics. However, traditional jewelry chain clasps have some structural shortcomings and drawbacks.

[0003] The swivel spring is a crucial component in the buckle for enabling its opening and closing function. However, due to frequent opening and closing and the influence of the external environment, the spring is prone to wear, leading to weakened elasticity or even breakage. This can cause the buckle to loosen or fall off. In addition, traditional buckle designs often lack sufficient locking mechanisms, making the buckle prone to loosening or falling off during wear, especially during vigorous exercise or improper pulling. Furthermore, some buckles have sharp designs or improper surface treatments, which can easily rub against the skin or clothing during wear, causing unnecessary damage and reducing wearing comfort and safety. Utility Model Content

[0004] The jewelry chain connector proposed in this utility model solves the problems of severe wear of the rotating core return spring, unstable connection, easy detachment, and safety hazards during wear of existing jewelry chain connectors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A jewelry chain connector includes an upper outer shell and a lower outer shell. An installation groove is provided in the middle of the upper and lower outer shells, and a limiting block is provided inside the installation groove. A movable hole is provided inside the limiting block, and a rotating core matching the installation groove is provided above the movable hole. Rotating shafts matching the movable hole are provided on both sides of the rotating core, and an elastic connecting mechanism is provided inside the rotating core. A detachable upper outer shell is provided on the top of the lower outer shell, and a protective layer is provided on the outer sides of both the upper and lower outer shells. A locking mechanism is provided on the sides of the upper and lower outer shells at the bottom of the rotating core.

[0007] Preferably, the elastic connection mechanism includes a limiting plate, a limiting groove, and a return spring, and the rotating core is provided with a limiting groove inside, and the bottom and top of the upper shell and the lower shell are provided with limiting plates.

[0008] Preferably, a return spring is provided inside the limiting groove, and the return spring is located outside the rotating shaft, with the other end of the return spring being snapped into the side of the limiting plate to form an elastic connection structure.

[0009] Preferably, the upper outer shell has multiple sets of slots inside, and the lower outer shell has a locking rod on top that matches the slots and is movably engaged.

[0010] Preferably, the movable hole has a threaded hole inside, and one end of the threaded hole extends to the outside of the upper housing. The rotating shaft has a bearing inside, and the upper housing is connected to the threaded hole inside the lower housing by a long bolt passing through the bearing.

[0011] Preferably, the locking mechanism includes a snap fastener, a boss, a movable groove, and a snap rod, with a snap fastener provided on the outer side of the upper housing, a boss provided on the outer side of the lower housing, and a movable groove provided inside the boss.

[0012] Preferably, the movable groove is provided with a locking rod that matches the locking buckle and is in movable locking position, and both the locking rod and the locking buckle are located at the bottom of the rotating core.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This jewelry chain buckle has a detachable upper outer shell at the top of the lower outer shell. The upper and lower outer shells are connected by a slot and a locking rod and fixed by a long bolt. The design of the detachable buckle structure allows users to easily disassemble and replace worn buckle parts without damaging the entire jewelry chain or replacing the entire buckle. This not only extends the service life of the jewelry chain but also reduces the cost of repairing or replacing the entire chain and ensures the stability of the connection.

[0015] 2. The rotating core is equipped with an elastic connection mechanism. The elasticity of the return spring supports the elastic connection of the rotating core. At the same time, the sliding locking rod is locked inside the locking buckle to limit the bottom of the rotating core. Combined with the spring connection structure and the buckle lock, it ensures that the connection buckle remains stable even in extreme situations, effectively preventing the jewelry chain from breaking and falling off.

[0016] 3. Protective layers are provided on the outer sides of the upper and lower outer shells. A soft and wear-resistant protective layer is added to the surface of the connecting buckle. It is made of microfiber and silicone material, which can effectively prevent scratches on the skin or clothing, improve the feel, enhance the wearing comfort, and effectively solve the safety hazards during wearing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the upper outer shell and rotating core structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the lower outer shell and threaded hole structure of this utility model.

[0022] The following are the labels in the diagram: 1. Upper outer shell; 2. Lower outer shell; 3. Mounting groove; 4. Limiting block; 5. Movable hole; 6. Rotating core; 7. Rotating shaft; 8. Limiting plate; 9. Limiting groove; 10. Return spring; 11. Threaded hole; 12. Bearing; 13. Long bolt; 14. Slot; 15. Locking rod; 16. Snap fastener; 17. Boss; 18. Movable groove; 19. Snap fastener; 20. Protective layer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Reference Figures 1-5 This utility model provides a technical solution: a jewelry chain connecting buckle, including an upper outer shell 1 and a lower outer shell 2. An installation groove 3 is provided in the middle of the upper outer shell 1 and the lower outer shell 2. A limiting block 4 is provided inside the installation groove 3. An movable hole 5 is provided inside the limiting block 4. A rotating core 6 matching the installation groove 3 is provided above the movable hole 5. The installation groove 3 and the limiting block 4 limit the rotating core 6, ensuring the stability of the connection of the rotating core 6. Rotating shafts 7 matching the movable hole 5 are provided on both sides of the outside of the rotating core 6. An elastic connecting mechanism is provided inside the rotating core 6.

[0026] Reference Figure 1 , Figure 2 The elastic connection mechanism includes a limiting plate 8, a limiting groove 9, and a return spring 10. The rotating core 6 is provided with a limiting groove 9. The upper outer shell 1 and the lower outer shell 2 are provided with limiting plates 8 at the bottom and top. The limiting groove 9 is provided with a return spring 10, and the return spring 10 is located outside the rotating shaft 7. The other end of the return spring 10 is snapped onto the side of the limiting plate 8 to form an elastic connection structure.

[0027] In practical implementation, when the jewelry chain connecting buckle is in use, and because the rotating shafts 7 on both sides of the outer side of the rotating core 6 are installed inside the movable holes 5 in a movable connection, pressing one end of the rotating core 6 causes the rotating core 6 to rotate within the movable holes 5 inside the upper outer shell 1 and the lower outer shell 2. At the same time, the mounting groove 3 and the limiting block 4 limit the rotating core 6, preventing displacement of the rotating core 6 during rotation and affecting the stability of the connecting buckle. Then, because the return spring 10 is installed in the limiting groove 9 inside the rotating core 6, and the other end of the return spring 10 is engaged with the side of the limiting plate 8, during the pressing of the rotating core 6, the elasticity of the return spring 10 elastically supports the other end of the rotating core 6 to be firmly connected to the upper end of the upper outer shell 1 and the lower outer shell 2, ensuring the stability of the connection. Through the above operations, the operation of the connecting buckle is more convenient, and at the same time, the stability of the connecting buckle is ensured, effectively preventing the jewelry chain from breaking and falling off.

[0028] Example 2

[0029] Reference Figure 2 This embodiment is an optimization based on the first embodiment. The top of the lower outer shell 2 is provided with a detachable upper outer shell 1, and the outer sides of the upper outer shell 1 and the lower outer shell 2 are provided with a protective layer 20. The protective layer 20 is made of microfiber and silicone material, which has good biocompatibility and environmental protection performance, and is also easy to clean and maintain. The sides of the upper outer shell 1 and the lower outer shell 2 are provided with a locking mechanism at the bottom of the rotating core 6.

[0030] Reference Figure 4 , Figure 5 The upper outer shell 1 has multiple sets of slots 14 inside, and the lower outer shell 2 has a locking rod 15 that matches the slots 14 and is movably engaged. The movable hole 5 has a threaded hole 11 inside, and one end of the threaded hole 11 extends to the outside of the upper outer shell 1. The rotating shaft 7 has a bearing 12 inside. The bearing 12 makes the rotating core 6 more flexible in pressing and moving inside the movable hole 5. The upper outer shell 1 is connected to the threaded hole 11 inside the lower outer shell 2 by a long bolt 13 passing through the bearing 12.

[0031] Reference Figure 3 The locking mechanism includes a snap fastener 16, a boss 17, a movable groove 18, and a snap rod 19. The snap fastener 16 is provided on the outer side of the upper housing 1, and the boss 17 is provided on the outer side of the lower housing 2. The movable groove 18 is provided inside the boss 17. The snap rod 19, which matches the snap fastener 16, is provided inside the movable groove 18 and is in movable snap-fit. Both the snap rod 19 and the snap fastener 16 are located at the bottom of the rotating core 6.

[0032] In practice, when the internal rotating core 6 and return spring 10 of the jewelry chain connecting buckle are severely worn and easily fall off, first rotate and unscrew the long bolt 13 inside the upper outer shell 1 and the lower outer shell 2. Then, lift the upper outer shell 1 upwards, which will separate the slot 14 and the locking rod 15 on the side of the upper outer shell 1 and the lower outer shell 2. Then, the connecting buckle can be easily disassembled and the worn connecting buckle parts can be replaced, extending the service life of the jewelry chain. After the worn parts are replaced, the upper outer shell 1 and the lower outer shell 2 are then connected to each other through the slot 14 and the locking rod 15. Next, the upper outer shell 1 is connected to the lower outer shell 2 through the bearing 12 by the long bolt 13 to fix the upper outer shell 1 and the lower outer shell 2.

[0033] In addition, when the other end of the rotating core 6 is firmly connected to the upper shell 1 and the upper end of the lower shell 2, and because the lower shell 2 has a protrusion 17 on the outside and a movable groove 18 inside the protrusion 17, the sliding rotating core 6 slides into the movable groove 18 at the bottom and engages with the locking rod 19 inside, so that the locking rod 19 engages with the locking buckle 16 on the outside of the upper shell 1, thereby limiting the rotation of the core 6. A double locking mechanism is adopted, with a spring connection structure and a buckle lock, to ensure that the connection buckle can maintain its stability even in extreme situations. In addition, a soft and wear-resistant protective layer 20 is added to the surface of the connection buckle to effectively prevent scratches to the skin or clothing, significantly improve the feel and enhance the wearing comfort. Through the above operations, the durability and security of the jewelry chain are improved, and the user's wearing experience is greatly improved.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A jewelry chain fastener, comprising an upper outer shell (1) and a lower outer shell (2), characterized in that, The upper outer shell (1) and the lower outer shell (2) are provided with a mounting groove (3) in the middle, and a limiting block (4) is provided inside the mounting groove (3). The limiting block (4) is provided with a movable hole (5) inside, and a rotating core (6) matching the mounting groove (3) is provided above the movable hole (5). Rotating shafts (7) matching the movable hole (5) are provided on both sides of the rotating core (6). An elastic connecting mechanism is provided inside the rotating core (6). The lower outer shell (2) is provided with a detachable upper outer shell (1) at the top. A protective layer (20) is provided on the outer side of the upper outer shell (1) and the lower outer shell (2). A locking mechanism is provided on the side of the upper outer shell (1) and the lower outer shell (2) at the bottom of the rotating core (6).

2. The jewelry chain connecting buckle according to claim 1, characterized in that, The elastic connection mechanism includes a limiting plate (8), a limiting groove (9), and a return spring (10). The rotating core (6) is provided with a limiting groove (9), and the bottom and top of the upper shell (1) and the lower shell (2) are provided with limiting plates (8).

3. The jewelry chain connecting buckle according to claim 2, characterized in that, The limiting groove (9) is provided with a return spring (10), and the return spring (10) is located outside the rotating shaft (7). The other end of the return spring (10) is snapped into the side of the limiting plate (8) to form an elastic connection structure.

4. The jewelry chain connecting buckle according to claim 1, characterized in that, The upper outer shell (1) is provided with multiple sets of slots (14), and the lower outer shell (2) is provided with a locking rod (15) that matches the slots (14) and is in a movable locking position.

5. The jewelry chain connecting buckle according to claim 4, characterized in that, The movable hole (5) is provided with a threaded hole (11), and one end of the threaded hole (11) extends to the outside of the upper outer shell (1). The rotating shaft (7) is provided with a bearing (12), and the upper outer shell (1) is connected to the threaded hole (11) inside the lower outer shell (2) by a long bolt (13) passing through the bearing (12).

6. The jewelry chain connecting buckle according to claim 1, characterized in that, The locking mechanism includes a snap fastener (16), a boss (17), a movable groove (18), and a snap rod (19). The snap fastener (16) is provided on the outer side of the upper outer shell (1), and the boss (17) is provided on the outer side of the lower outer shell (2). The movable groove (18) is provided inside the boss (17).

7. The jewelry chain connecting buckle according to claim 6, characterized in that, The movable groove (18) is provided with a snap-fit ​​rod (19) that matches the snap-fit ​​buckle (16) and is in a movable snap-fit ​​position. Both the snap-fit ​​rod (19) and the snap-fit ​​buckle (16) are located at the bottom of the rotating core (6).

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