Permanent connecting buckle and ornament
By designing an interference fit and snap-fit structure of limiting protrusions and limiting grooves in the permanent connection buckle, the problem of weak connection in the existing technology is solved, and a firm connection between the two parts of the jewelry is achieved.
Patent Information
- Application Number
- CN202520155229.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The permanent buckle in the existing technology cannot achieve a locking effect, and there is a possibility of loosening, resulting in an unstable connection.
A permanent connection buckle is designed, including a first buckle body and a second buckle body. By setting a limiting protrusion on the outer wall and a limiting groove on the inner wall of the second buckle body, the snap-fit is achieved by using interference fit and clearance fit. The design of the snap-fit part and the avoidance notch enhances the connection firmness.
This achieves a secure connection between the two parts of the jewelry, preventing them from coming loose and improving the stability and strength of the connection.
Smart Images

Figure CN223640278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of jewelry, specifically to a permanent connecting buckle and ornament. Background Technology
[0002] Jewelry items that people frequently wear, such as necklaces and bracelets, require clasps to connect their two different parts into a single unit. Current technology typically involves creating permanent clasps that are made to fit the jewelry's dimensions and cannot be easily separated once connected. However, existing permanent clasps do not achieve a truly secure lock, allowing them to loosen and resulting in an unstable connection. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a permanent connecting buckle and ornament, which can solve the problem of the existing connecting buckle not being secure.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: On the one hand, a permanent connecting buckle is provided, including a first buckle body and a second buckle body, which are respectively provided with a first connecting part and a second connecting part. The first connecting part and the second connecting part are respectively used to connect with two parts of the ornament. The first buckle body is provided with a receiving groove and a clearance notch. The clearance notch is connected to the receiving groove and is used to avoid the second connecting part. The receiving groove is used to receive the second buckle body. The inner wall of the receiving groove is provided with a limiting groove. The outer wall of the second buckle body is provided with a limiting protrusion. The limiting protrusion is used to interfere with the receiving groove and to have a clearance fit with the limiting groove.
[0005] As a further improvement to the above technical solution, a groove is provided in the middle of the second buckle body, and the limiting protrusion is located on the outer wall of the groove.
[0006] As a further improvement to the above technical solution, the limiting protrusion is annular and surrounds the outer wall of the second buckle body, the limiting groove is located at the bottom of the receiving groove, and the two are arranged in a stepped manner.
[0007] As a further improvement to the above technical solution, the opening of the limiting groove is chamfered.
[0008] As a further improvement to the above technical solution, a snap-fit part is provided between the second buckle body and the second connecting part, and the snap-fit part is used to snap into the clearance notch.
[0009] As a further improvement to the above technical solution, both the snap-fit part and the clearance notch are elongated strips, and the two ends of the snap-fit part extend to the two ends of the second buckle body in the length direction.
[0010] As a further improvement to the above technical solution, the second buckle body has the same dimension in the length direction of the snap-fit portion as the depth of the receiving groove.
[0011] As a further improvement to the above technical solution, the first connecting part is disposed opposite to the clearance notch.
[0012] As a further improvement to the above technical solution, both the first connecting portion and the second connecting portion are annular.
[0013] On the other hand, an ornament is provided, including the aforementioned permanent connecting clasp.
[0014] The beneficial effects of this utility model are as follows: By placing the second buckle body into the receiving groove and allowing the second connecting part to extend from the notch, pressing down on the second buckle body allows the limiting protrusion to slide into the limiting groove, thereby achieving the connection between the first buckle body and the second buckle body. Since the first connecting part and the second connecting part are respectively connected to the two parts of the ornament, the connection between the two parts of the ornament can be achieved. Because the limiting protrusion and the receiving groove are interference-fitted when the second buckle body is placed into the receiving groove, the limiting protrusion can play a locking role when it is in the limiting groove, making it difficult for the second buckle body to fall out of the receiving groove, thus making the entire permanent connection buckle firmly connected. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This is a structural schematic diagram of the first fastener provided in a preferred embodiment of the present invention;
[0017] Figure 2 This is a structural schematic diagram of the second buckle body provided in a preferred embodiment of the present invention;
[0018] Figure 3 This is a structural schematic diagram of the second buckle body from another angle according to a preferred embodiment of the present invention;
[0019] Figure 4 This is a cross-sectional view of the first buckle body provided in a preferred embodiment of the present invention.
[0020] Reference numerals: 1. First buckle body; 2. Second buckle body;
[0021] 11. First connecting part; 12. Receiving groove; 13. Alignment notch; 21. Second connecting part; 22. Limiting protrusion; 23. Groove; 24. Snap-fit part.
[0022] 121. Limiting groove; 122. Chamfer. Detailed Implementation
[0023] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.
[0024] Please see Figure 1-4 A preferred embodiment of this utility model provides a permanent connecting buckle, including a first buckle body 1 and a second buckle body 2, each having a first connecting part 11 and a second connecting part 21. The first connecting part 11 and the second connecting part 21 are respectively used to connect to two parts of the ornament. By connecting the first buckle body 1 and the second buckle body 2 together, the connection between the two parts of the ornament can be achieved.
[0025] Specifically, the first buckle 1 is provided with a receiving groove 12 and a clearance notch 13. The clearance notch 13 communicates with the receiving groove 12 and is used to avoid the second connecting part 21. The receiving groove 12 is used to receive the second buckle 2. The inner wall of the receiving groove 12 is provided with a limiting groove 121, and the outer wall of the second buckle 2 is provided with a limiting protrusion 22. The limiting protrusion 22 is used to have an interference fit with the receiving groove 12 and a clearance fit with the limiting groove 121. By placing the second buckle 2 into the receiving groove 12 and allowing the second connecting part 21 to extend from the clearance notch 13, pressing the second buckle 2 downwards allows the limiting protrusion 22 to slide into the limiting groove 121, thereby achieving the connection between the first buckle 1 and the second buckle 2. Since the first connecting part 11 and the second connecting part 21 are respectively connected to the two parts of the ornament, the connection between the two parts of the ornament can be achieved. Since the limiting protrusion 22 is interference-fitted with the receiving groove 12 when the second buckle 2 is placed into the receiving groove 12, the limiting protrusion 22 can play a locking role when it is located in the limiting groove 121, and the second buckle 2 is not easy to fall out of the receiving groove 12, so that the entire permanent connection buckle is firmly connected.
[0026] Furthermore, a groove 23 is provided in the middle of the second buckle body 2, and a limiting protrusion 22 is located on the outer wall of the groove 23. The groove 23 can reduce the weight of the second buckle body 2, and when the second buckle body 2 is pressed down, the second buckle body 2 is more likely to deform inward due to the groove 23, so as to save effort and facilitate use.
[0027] The limiting protrusion 22 is annular and surrounds the outer wall of the second buckle body 2, and the limiting groove 121 is located at the bottom of the receiving groove 12, and the two are arranged in a stepped manner. When the first buckle body 1 and the second buckle body 2 are connected, a limiting structure is formed around the second buckle body 2, which can more effectively prevent the second buckle body 2 from falling out of the receiving groove 12, thereby enhancing the connection firmness.
[0028] Furthermore, the opening of the limiting groove 121 is provided with a chamfer 122, which facilitates the second buckle 2 to slide into the limiting groove 121 during the pressing process, thus facilitating the assembly of the second buckle 2 of the first buckle 1 and making it easier to use.
[0029] A snap-fit part 24 is provided between the second buckle body 2 and the second connecting part 21. The snap-fit part 24 is used to snap into the clearance notch 13. The matching arrangement of the snap-fit part 24 and the clearance notch 13 can add a snap-fit structure between the first buckle body 1 and the second buckle body 2, further ensuring the firmness of the connection between the two.
[0030] Specifically, both the snap-fit part 24 and the clearance notch 13 are elongated. The two ends of the snap-fit part 24 extend to the two ends of the second buckle body 2 in the length direction, which helps to increase the contact area between the snap-fit part 24 and the clearance notch 13, enhance the friction between the two, and further improve the snap-fit strength between the first buckle body 1 and the second buckle body 2.
[0031] The second buckle 2 has the same length dimension as the receiving groove 12 in the length direction of the snap-fit portion 24. When the second buckle 2 is located in the receiving groove 12, the surface of the second buckle 2 is flush with the opening end face of the receiving groove 12, making the first buckle 1 and the second buckle 2 more integrated, which is conducive to improving the workpiece quality.
[0032] The first connecting part 11 is arranged opposite to the notch 13. When the first buckle 1 is connected to the second buckle 2, the second connecting part 21 extends out from the notch 13. Therefore, the first connecting part 11 and the second connecting part 21 are arranged opposite to each other. During use, the two parts of the ornament that are connected to the first connecting part 11 and the second connecting part 21 respectively can be arranged opposite to each other for easy use.
[0033] Both the first connecting part 11 and the second connecting part 21 are annular, and the through hole in the middle allows the connector on the ornament to pass through, making it easy to connect with the two parts of the ornament.
[0034] A preferred embodiment of this utility model also provides an ornament, including the permanent connection buckle of the above embodiment. When the second buckle body 2 of the ornament is placed in the receiving groove 12, the limiting protrusion 22 is interference-fitted with the receiving groove 12. Therefore, when the limiting protrusion 22 is located in the limiting groove 121, it can play a locking role, and the second buckle body 2 is not easy to fall out of the receiving groove 12, so that the entire permanent connection buckle is firmly connected.
[0035] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A permanent connecting buckle, characterized in that: The device includes a first buckle body and a second buckle body, each having a first connecting portion and a second connecting portion, which are used to connect to two parts of the ornament respectively. The first buckle body has a receiving groove and a clearance notch, the clearance notch communicating with the receiving groove and the clearance notch being used to avoid the second connecting portion. The receiving groove is used to receive the second buckle body, the inner wall of the receiving groove has a limiting groove, and the outer wall of the second buckle body has a limiting protrusion, the limiting protrusion being used to interfere with the receiving groove and to have a clearance fit with the limiting groove.
2. The permanent connecting buckle according to claim 1, characterized in that: The second buckle body has a groove in the middle, and the limiting protrusion is located on the outer wall of the groove.
3. The permanent connecting buckle according to claim 1, characterized in that: The limiting protrusion is annular and surrounds the outer wall of the second buckle body, the limiting groove is located at the bottom of the receiving groove, and the two are arranged in a stepped manner.
4. The permanent connecting buckle according to claim 3, characterized in that: The opening of the limiting groove is chamfered.
5. The permanent connecting buckle according to claim 1, characterized in that: A snap-fit part is provided between the second buckle body and the second connecting part, and the snap-fit part is used to snap into the clearance notch.
6. The permanent connecting buckle according to claim 5, characterized in that: Both the snap-fit portion and the clearance notch are elongated strips, with both ends of the snap-fit portion extending to both ends of the second buckle body along its length.
7. The permanent connecting buckle according to claim 6, characterized in that: The second fastener has the same dimension in the length direction of the snap-fit portion as the depth of the receiving groove.
8. The permanent connecting buckle according to claim 1, characterized in that: The first connecting portion is disposed opposite to the clearance notch.
9. The permanent connecting buckle according to claim 1, characterized in that: Both the first connecting portion and the second connecting portion are annular.
10. An ornament, characterized in that: Includes the permanent connection buckle as described in any one of claims 1-9.