An adjustable length necklace extender

Abstract

The utility model relates to a necklace technical field relates to a kind of necklace telescopic buckle of adjustable length, including necklace body, the rope body is arranged in the necklace body inner wall, the rope body outer wall is fixedly connected with limiting bead, the rope body outer wall is provided with telescopic component, the telescopic component includes telescopic buckle body, the telescopic buckle body inner wall slidingly connects in the rope body outer wall, the telescopic buckle body inner wall is fixedly connected with connecting ring, the connecting ring inside is provided with the slot one, the telescopic buckle body inner wall slidingly connects with the blocking block, the telescopic buckle body inner wall is fixedly connected with spring one, the spring one end is fixedly connected with the clamping block two, in the utility model, by the knob block of knob rotating column outer wall, rotating column, clamping block one and connecting column two can be driven synchronous rotation, clamping block one resets under the spring one elasticity, connecting column two rotation drives the clamping block two, and the blocking block removes to the rope body.

Description

Technical Field

[0001] This utility model relates to the field of jewelry technology, and in particular to an adjustable-length telescopic clasp for necklaces. Background Technology

[0002] In the jewelry and accessories industry, necklaces are one of the mainstream accessories. Their wearing experience and suitability directly affect consumers' user experience. Different consumers have different neck circumferences and different dressing styles. For example, V-neck tops are suitable for long necklaces, while round neck tops are suitable for short necklaces. In addition, different occasions require simple short necklaces for daily commutes and exquisite long necklaces for formal occasions. The requirements for necklace length are significantly different. Traditional fixed-length necklaces are difficult to adjust in size, often resulting in problems such as the necklace being too tight and constricting the neck, or the length being inappropriate and ruining the coordination of the outfit. They are difficult to meet diverse wearing needs.

[0003] Most necklace clasps in the current technology adopt a fixed connection structure, mainly divided into two types: spring clasps and snap clasps. The mechanical structure of a spring clasp includes a metal clasp body, a loop connecting to one end of the necklace, and a push button on the outside of the clasp body. The technical principle is that when the button is pressed, the spring compresses, causing the clasp to retract and engage the loop at the other end of the necklace. When the button is released, the spring returns to its original position, locking the loop and achieving a fixed connection between the two ends of the necklace. The length after connection is entirely determined by the length of the necklace links, making it difficult to adjust. Snap clasps consist of a male clasp and a female clasp. One end of the male clasp has a protruding pin, and the other end of the female clasp has a corresponding slot and a spring clip. The technical principle is that the male clasp pin is inserted into the female clasp slot, and the spring clip automatically engages the pin to achieve a fixed connection. Similarly, it can only achieve a rigid connection between the two ends of the necklace, with a fixed length. Some snap clasps have patterns engraved on the surface to improve aesthetics, but this does not change their core characteristic of fixed length.

[0004] However, existing necklace clasps, while providing a fixed connection between the two ends of the necklace, struggle to adjust the necklace length. This makes it difficult to adapt to different neck circumferences and various dressing occasions. For example, consumers with narrow necks may experience pendant swaying and poor fit when wearing a fixed-length necklace due to its excessive length, while those with wider necks may find the necklace too tight and uncomfortable. Furthermore, when consumers change their style and need to adjust the necklace length to match their neckline, a fixed-length necklace is insufficient, necessitating the purchase of necklaces of different lengths, increasing costs and resulting in wasted jewelry. In addition, some consumers wish to adjust the necklace pendant length on a whim, but existing fixed clasps cannot provide this flexibility, limiting the versatility and ease of use of necklaces. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable-length telescopic buckle for necklaces, aiming to improve the problem that existing fixed buckles are difficult to adjust in length flexibly, thus limiting the versatility of necklace wearing and ease of use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-length telescopic buckle for a necklace, comprising a necklace body, a rope body disposed on the inner wall of the necklace body, a limit bead fixedly connected to the outer wall of the rope body, and a telescopic component disposed on the outer wall of the rope body; The telescopic assembly includes a telescopic buckle body, the inner wall of which is slidably connected to the outer wall of the rope body. A connecting ring is fixedly connected to the inner wall of the telescopic buckle body, and a slot is provided inside the connecting ring. A blocking block is slidably connected to the inner wall of the telescopic buckle body. A spring is fixedly connected to the inner wall of the telescopic buckle body. A locking block is fixedly connected to one end of the spring. A connecting post is fixedly connected to the outer wall of the locking block. A rotating post is fixedly connected to the outer wall of the connecting post. A lever and a locking block are fixedly connected to the outer wall of the rotating post.

[0007] Furthermore, a connecting post is provided on the outer wall of the necklace body, and a pendant body is provided on the inner wall of the connecting post.

[0008] Furthermore, a connecting column three is fixedly connected to the outer wall of the pendant body, and a locking block three is fixedly connected to the outer wall of the connecting column three.

[0009] Furthermore, the outer wall of the connecting column three is slidably connected to the inner wall of the connecting column three.

[0010] Furthermore, the inner wall of the connecting column is provided with a sliding groove and a retaining groove.

[0011] Furthermore, a second spring is fixedly connected to the inner wall of the first connecting column, and a connecting plate is fixedly connected to one end of the second spring.

[0012] Furthermore, the outer wall of the connecting plate is slidably connected to the inner wall of the connecting column, and the inner wall of the connecting column is provided with a swivel groove.

[0013] Furthermore, the rotating column and the outer wall of the locking block are both slidably connected to the inner wall of the connecting ring.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by moving the lever on the outer wall of the rotating column, the rotating column, the first locking block and the second connecting column can be driven to rotate synchronously. The first locking block is reset under the elastic force of the first spring. When the second connecting column rotates, it drives the second locking block, so that the blocking block releases the restriction on the rope body. The operator can directly pull the rope body to adjust to the ideal length. The length can be adjusted by simple moving without the need for additional tools, which effectively solves the problem that the length of traditional necklaces cannot be adjusted.

[0015] 2. In this utility model, pressing the pendant body causes the connecting post three to disengage from the slot two of the connecting post one. Then, rotating the pendant body allows it to rotate along the groove of the connecting post one to the sliding groove position, thus directly removing the pendant body. This solves the problem that traditional pendants rely heavily on welding and buckle fixing, leading to difficulties in disassembly and assembly. Users can freely change the pendant according to their clothing style and occasion needs, significantly improving the versatility of necklace matching and the flexibility of use, and there is no need to worry about the pendant being accidentally lost during wear. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an adjustable-length telescopic clasp for a necklace, as proposed in this utility model. Figure 2 This is a schematic diagram of the telescopic buckle body of an adjustable-length necklace telescopic buckle proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the image; Figure 4 This is a schematic diagram of a portion of the connecting post of an adjustable-length telescopic clasp for a necklace, as proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point B in the image.

[0017] Legend: 1. Necklace body; 2. Pendant body; 3. Rope body; 4. Telescopic buckle body; 5. Limiting bead; 6. Connecting post one; 7. Rotating post; 8. Toggle block; 9. Locking block one; 10. Connecting post two; 11. Locking block two; 12. Spring one; 13. Blocking block; 14. Connecting ring; 15. Locking groove one; 16. Spring two; 17. Connecting plate; 18. Rotating groove; 19. Sliding groove; 20. Locking groove two; 21. Connecting post three; 22. Locking block three. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-3 An embodiment of this utility model is provided: an adjustable length necklace telescopic buckle, including a necklace body 1, a rope body 3 provided on the inner wall of the necklace body 1, a limiting bead 5 fixedly connected to the outer wall of the rope body 3, the limiting bead 5 is used to limit the sliding range of the telescopic component on the rope body 3, and the telescopic component is provided on the outer wall of the rope body 3. The telescopic assembly includes a telescopic buckle body 4, which is used to install the core component of the telescopic assembly. The inner wall of the telescopic buckle body 4 is slidably connected to the outer wall of the rope body 3. A connecting ring 14 is fixedly connected to the inner wall of the telescopic buckle body 4. The connecting ring 14, together with the locking block 9 and the locking groove 15, locks the rotating column 7. The locking groove 15 is opened inside the connecting ring 14 to provide a precise locking position for the locking block 9. A blocking block 13 is slidably connected to the inner wall of the telescopic buckle body 4 to limit the sliding of the rope body 3. The blocking block 13 can press or release the rope body 3 under the action of the locking block 11. A spring 12 is fixedly connected to the inner wall of the telescopic buckle body 4. The spring 12, together with the locking block 11, locks the rotating column 7. The spring 12 is fixedly connected to a locking block 11 at one end. The locking block 11 is used to connect with the connecting post 10 to restrict the blocking block 13. The outer wall of the locking block 11 is fixedly connected to the connecting post 10. The connecting post 10 is used to connect the rotating post 7 and the locking block 11. The outer wall of the connecting post 10 is fixedly connected to the rotating post 7. The rotating post 7 is used to connect the toggle block 8, the locking block 19 and the connecting post 10. The outer wall of the rotating post 7 is fixedly connected to the toggle block 8 and the locking block 19. The toggle block 8 is used for the user to toggle to start the length adjustment. It is fixed on the outer wall of the rotating post 7. The locking block 19 cooperates with the slot 15 opened on the connecting ring 14 to lock the rotating post 7. The outer walls of the rotating post 7 and the locking block 19 are slidably connected to the inner wall of the connecting ring 14. Specifically, the rope body 3 is set inside the telescopic buckle body 4. The slot 15 on the connecting ring 14 cooperates with the locking block 9 of the rotating column 7 to lock the rotating column 7. The lever 8 drives the rotating column 7 to rotate, and the connecting column 2 10 drives the locking block 2 11 to move. The locking block 2 11 releases the blocking block 13, so the length of the rope body 3 can be adjusted. The spring 12 helps the locking block 2 11 to reset, so that the blocking block 13 presses the rope body 3 again, thus completing the length fixation.

[0020] Reference Figures 1-5The necklace body 1 has a connecting post 6 on its outer wall, which connects the necklace body 1 to the pendant body 2. Its inner wall has a sliding groove 19, a rotating groove 18, and a locking slot 20. The pendant body 2 is mounted on the inner wall of the connecting post 6. The pendant body 2, as the core decorative component of the necklace, can be quickly assembled and disassembled using connecting post 21 and locking block 22 in conjunction with connecting post 6. Connecting post 21 is fixedly connected to the outer wall of the pendant body 2, connecting it to the connecting post 6. Locking block 22 is fixedly connected to the outer wall of connecting post 21. Locking block 22, in conjunction with the sliding groove 19, rotating groove 18, and locking slot 20 on connecting post 6, enables the assembly, disassembly, and locking of the pendant body 2. The outer walls of column 3 21 and block 3 22 are slidably connected to the inner wall of connecting column 1 6. The inner wall of connecting column 1 6 is provided with a sliding groove 19 and a second slot 20. The sliding groove 19 is used to provide an entry and exit channel for the installation and disassembly of block 3 22. The second slot 20 is used to provide the final locking position for block 3 22. A second spring 16 is fixedly connected to the inner wall of connecting column 1 6. The second spring 16, together with the connecting plate 17 and block 3 22, locks the connecting column 3 21. One end of the second spring 16 is fixedly connected to the connecting plate 17. The connecting plate 17 makes the force on the second spring 16 balanced. The outer wall of the connecting plate 17 is slidably connected to the inner wall of connecting column 1 6. The inner wall of connecting column 1 6 is provided with a rotating groove 18. The rotating groove 18 is used to provide a rotation channel for block 3 22. Specifically, the groove 19 on the inner wall of the connecting column 16 allows the locking block 322 of the pendant connecting column 31 to move in and out. The rotating groove 18 guides the locking block 322 to rotate. Finally, the locking block 322 is locked into the locking groove 20. The spring 216 inside the connecting column 16 is evenly stressed through the connecting plate 17, further locking the connecting column 321, thus realizing the quick disassembly and assembly and stable connection of the pendant body 2.

[0021] Working principle: When the length of the necklace needs to be adjusted, firstly, by moving the lever 8 on the outer wall of the rotating column 7, the rotating column 7 is rotated. At the same time, the locking block 9 and the connecting column 10 on the outer wall of the rotating column 7 will also rotate. The locking block 9 is reset under the elastic force of the spring 12. At this time, when the connecting column 10 rotates, it will drive the locking block 11 to rotate, thereby causing the locking block 11 to drive the blocking block 13 to release the restriction on the rope body 3, so that the length of the rope body 3 can be adjusted. After adjusting to the ideal length, press the rotating column 7 to rotate the locking block 9 to the slot 15 on the connecting ring 14. At the same time, the spring 12 deforms. Then rotate the lever 8 to rotate the rotating column 7, so that the rotating column 7 drives the locking block 9 to engage in the slot 15 on the connecting ring 14. At the same time, the locking block 11 rotates to restrict the rope body 3 by the blocking block 13. Secondly, when the pendant needs to be disassembled, by pressing the pendant body 2, the connecting post 3 21 is disengaged from the slot 20 opened in the connecting post 1 6. At this time, the pendant body 2 is rotated so that it rotates in the swivel groove 18 opened in the connecting post 1 6. When it rotates into the slide groove 19, the pendant body 2 can be disassembled. When the pendant needs to be installed, the locking block 3 22 slides into the swivel groove 18 through the slide groove 19. At the same time, the upper surface of the connecting post 3 21 is attached to the lower surface of the connecting plate 17, thereby causing the spring 2 16 to deform. At this time, the pendant body 2 is rotated so that it rotates on the swivel groove 18. When it rotates into the slot 20, the pendant body 2 is released, and the locking block 3 22 is locked into the slot 20 under the elastic force of the spring 2 16.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable-length telescopic clasp for a necklace, comprising a necklace body (1), characterized in that: The inner wall of the necklace body (1) is provided with a rope body (3), the outer wall of the rope body (3) is fixedly connected with a limiting bead (5), and the outer wall of the rope body (3) is provided with a telescopic component. The telescopic assembly includes a telescopic buckle body (4), the inner wall of which is slidably connected to the outer wall of the rope body (3), a connecting ring (14) is fixedly connected to the inner wall of the telescopic buckle body (4), a slot (15) is provided inside the connecting ring (14), a blocking block (13) is slidably connected to the inner wall of the telescopic buckle body (4), a spring (12) is fixedly connected to the inner wall of the telescopic buckle body (4), a locking block (11) is fixedly connected to one end of the spring (12), a connecting post (10) is fixedly connected to the outer wall of the locking block (11), a rotating post (7) is fixedly connected to the outer wall of the connecting post (10), and a lever (8) and a locking block (9) are fixedly connected to the outer wall of the rotating post (7).

2. The adjustable-length telescopic clasp for a necklace according to claim 1, characterized in that: The outer wall of the necklace body (1) is provided with a connecting post (6), and the inner wall of the connecting post (6) is provided with a pendant body (2).

3. The adjustable-length telescopic clasp for a necklace according to claim 2, characterized in that: The outer wall of the pendant body (2) is fixedly connected to a connecting column three (21), and the outer wall of the connecting column three (21) is fixedly connected to a locking block three (22).

4. The adjustable-length telescopic clasp for a necklace according to claim 3, characterized in that: The outer wall of the connecting column three (21) and the outer wall of the card block three (22) are slidably connected to the inner wall of the connecting column one (6).

5. The adjustable-length telescopic clasp for a necklace according to claim 2, characterized in that: The inner wall of the connecting column 1 (6) is provided with a sliding groove (19) and a locking groove 2 (20).

6. The adjustable-length telescopic clasp for a necklace according to claim 2, characterized in that: A spring (16) is fixedly connected to the inner wall of the connecting column (6), and a connecting plate (17) is fixedly connected to one end of the spring (16).

7. The adjustable-length telescopic clasp for a necklace according to claim 6, characterized in that: The outer wall of the connecting plate (17) is slidably connected to the inner wall of the connecting column (6), and the inner wall of the connecting column (6) is provided with a swivel groove (18).

8. The adjustable-length telescopic clasp for a necklace according to claim 1, characterized in that: The rotating column (7) and the outer wall of the first locking block (9) are both slidably connected to the inner wall of the connecting ring (14).

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