Precious metal necklace pendant
By incorporating a nut hole and a single-sided concave thread structure inside the precious metal pendant ring, combined with laser welding and an information module, the problems of unstable gemstone fixation and inconvenient angle adjustment in jewelry have been solved. This enables 360-degree rotation of the gemstone and information integration, enhancing the wearing experience and functionality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI BINGBO GREEN JEWELRY CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-26
Smart Images

Figure CN224403048U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to, but is not limited to, the field of jewelry art technology, and particularly relates to a precious metal necklace pendant. Background Technology
[0002] Modern consumers are increasingly focused on the quality of life, and when it comes to jewelry, they pay more attention to the differentiation of designs, thus creating a higher demand for novel and unique designs.
[0003] A pendant is an ornament worn on the chest. Currently, common methods for securing gemstone spheres in jewelry pendants on the market include prong setting, which easily leads to the gemstone sphere falling off; eyelet setting, perforation, and cord setting, which damage the gemstone sphere due to drilling; bezel setting, which affects the beauty of the gemstone due to the large amount of precious metal obscuring it; and adhesive setting, which, after long-term use or storage, causes the adhesive properties to deteriorate, leading to the gemstone sphere falling off.
[0004] US Patent 7937966B2 discloses a jewelry design with replaceable or movable settings and attachable pendants, applicable to various jewelry forms such as rings, necklaces, earrings, bracelets, and pendants. This technology allows for diverse appearance changes through modular or detachable configurations—for example, different settings or small pendants can be inserted or attached to a base structure to change the style.
[0005] While the aforementioned technologies enable the interchangeability of settings or pendants, they still have shortcomings in the following aspects: First, the setting methods mostly rely on loose or snap-fit structures, failing to provide high stability or precise clamping for gemstone fixation, posing a risk of loosening or falling off; second, the angle or direction of the pendant is usually fixed, lacking adaptive adjustment capabilities, which is not conducive to the natural swinging with the body's movements during wear; in addition, these technologies do not involve integrating intelligent information modules (such as QR codes or NFC chips) into the precious metal substrate to achieve product digitization or anti-counterfeiting traceability functions. Utility Model Content
[0006] In view of the problems existing in the prior art, this utility model provides a necklace pendant (Yuan Dong Qian Kun) with a precious metal single-sided concave thread structure inside the precious metal necklace pendant ring, which fixes the gemstone spheres on the upper and lower sides.
[0007] This utility model is implemented as follows: a precious metal necklace pendant (Yuan Dong Qian Kun) includes a precious metal pendant ring, two precious metal nut holes are set on the upper and lower center lines inside the precious metal pendant ring, and a single-sided concave thread structure accessory is provided.
[0008] By bidirectionally tightening the upper and lower single-sided concave threaded structural components of precious metal, with the concave groove of the component pressing against the gemstone sphere at the center of the precious metal pendant ring, and after tightening and fixing, the connection between the upper and lower single-sided concave threaded structural components of precious metal and the nut on the outside of the precious metal pendant ring is laser welded and finished. A longitudinally upward-grooved precious metal fixing groove with a certain amount of allowance is set on the upper center line of the outer side of the precious metal pendant ring. The size of the lower circular structural component of the clasp is smaller than the size of the fixing groove. The lower circular structural component of the clasp is placed into the upper center line of the outer side of the precious metal pendant ring with a certain amount of allowance in the longitudinal direction of the precious metal. Utilizing the ductility of precious metal, a special tool is used to squeeze the longitudinally upward-grooved precious metal along the edge of the groove to fasten and fix it inward. At the same time, appropriate rotation space is left for the lower circular structural component of the clasp, so that when the consumer wears the necklace pendant, the circular structural component of the clasp can freely adjust the angle of the pendant according to the user's own body movements.
[0009] Furthermore, the precious metal pendant ring is a closed circle with a solid wall structure.
[0010] Furthermore, the size, thickness, and proportion of the precious metal pendant ring can be adjusted according to user needs.
[0011] Furthermore, the precious metal pendant can undergo high polishing, wire drawing, inlay, or sandblasting processes.
[0012] Furthermore, the precious metal pendant can be engraved with text, trademarks, and inlaid with gemstones.
[0013] Furthermore, the lower part of the precious metal pendant ring is provided with an information block code on one side, which is used to record the user's narrative, company information, and for anti-counterfeiting purposes.
[0014] Furthermore, the precious metal pendant materials mentioned include gold, 18k gold, silver, palladium, and six group metals of the platinum group, as well as other new materials such as alloys.
[0015] Based on the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solution to be protected by this utility model are as follows:
[0016] First, the present invention provides a technical solution by having two nut holes on the upper and lower center lines inside the precious metal pendant ring, and by configuring a precious metal single-sided concave thread structure accessory. The concave groove of the accessory is tightened and fixed to the gemstone sphere at the center of the precious metal pendant ring. This effectively solves the defects of the existing technology. Furthermore, the gemstone sphere at the center of the precious metal pendant ring can slide with the touch of the finger and can rotate 360 degrees, which obviously improves the wearing experience of the necklace pendant.
[0017] Secondly, the outer upper center line of the precious metal pendant ring of this utility model is provided with a longitudinally upward precious metal fixing groove with a certain amount of allowance. The size of the lower structural round accessory of the hole-shaped buckle is smaller than the size of the fixing groove. The lower structural round accessory of the hole-shaped buckle is placed into the precious metal fixing groove with a certain amount of allowance in the longitudinal direction on the outer upper center line of the precious metal pendant ring. Utilizing the ductility of precious metal, the lower structural round accessory of the buckle is pressed inward by a special tool to fix it in place. At the same time, appropriate rotation space is left for the lower structural round accessory of the buckle, so that when the consumer wears the precious metal necklace pendant, the hole-shaped buckle can freely adjust the angle of the pendant according to the user's body movements.
[0018] Third, the gemstone sphere fixed in the center of the precious metal pendant ring of this utility model can rotate freely 360 degrees as the finger touches and slides, which significantly enhances the user's interactive experience and can meet the user's pursuit of personalized and high-quality jewelry.
[0019] This invention presents a novel technique for securing a precious metal pendant ring by tightening two single-sided concave-threaded precious metal fittings along its upper and lower center lines. This technique, currently unavailable in the jewelry industry, utilizes nut holes on the upper and lower center lines of the ring to tighten and fix the gemstone sphere at its center. The outer upper center line of the pendant ring features a longitudinally extending precious metal fixing groove. The lower structural round fitting of the clasp is smaller than the groove. This fitting is placed into the groove, and using the malleability of precious metal, a special tool is used to press the groove edge to secure the fitting inwards. Sufficient rotation space is provided for the lower structural round fitting, allowing the user to adjust the pendant's angle according to their movements.
[0020] The technology of this utility model features a reasonable combination of various structures, simple and beautiful lines, and a single side of the lower part of the precious metal pendant ring is equipped with an information collection block code, such as a QR code or chip, which can record user narrative information according to user requirements, providing a new direction for the development of diversity, practicality and functionality in jewelry art. Attached Figure Description
[0021] Figure 1 This is a front view of the necklace precious metal pendant provided in this embodiment of the utility model;
[0022] Figure 2 This is a schematic diagram of the back of the precious metal necklace provided in this embodiment of the utility model;
[0023] Figure 3This is a schematic diagram of the left side of the necklace precious metal pendant provided in this embodiment of the utility model;
[0024] Figure 4 This is a schematic diagram of the right side of the necklace precious metal pendant provided in this embodiment of the utility model;
[0025] Figure 5 This is a top view of the necklace precious metal pendant provided in this embodiment of the utility model;
[0026] Figure 6 This is a bottom view of the precious metal necklace pendant provided in this embodiment of the utility model;
[0027] Figure 7 This is a three-dimensional view of the precious metal necklace provided in this embodiment of the utility model;
[0028] Figure 8 This is a disassembly diagram of the precious metal necklace provided in this embodiment of the utility model;
[0029] Figure 9 This is an anatomical view of the necklace precious metal pendant provided in this embodiment of the utility model;
[0030] In the image: 1. Precious metal pendant ring; 2. Single-sided concave thread structure fitting; 2b. Nut hole; 3. Gemstone sphere; 4. Hole-type buckle lower structure round fitting; 4b. Precious metal fixing groove; 5. Information collection block code. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.
[0032] This utility model provides a precious metal necklace pendant (Yuan Dong Qian Kun), which has a simple yet orderly structure and novel function. The design allows the gemstone sphere to rotate freely 360 degrees as the finger slides, bringing users a unique visual and tactile interactive experience.
[0033] The main body of the precious metal pendant ring 1 is made of precious metal materials, such as gold, 22k (Au 91.6%), 18k gold (Au 75%), silver (Ag 92.5%), platinum (Pt 90.0%, Pt 95.0%, Pt 99.0%), palladium (Pd 90.0%, Pd 95.0%, Pd 99.0%), and other alloys.
[0034] Precious metal pendant rings can undergo various surface treatments, such as polishing, brushing, gold inlay, jewel setting, or engraving of logos and text, in order to enhance their aesthetics and value.
[0035] The precious metal pendant ring 1 has two precious metal nut holes 2b on its upper and lower center lines. The precious metal single-sided concave thread structure accessory 2 is screwed into the precious metal nut hole 2b. The gemstone sphere 3 is placed in the concave groove of the upper and lower single-sided concave thread structure accessory 2. By twisting the upper and lower two precious metal single-sided concave thread structure accessories 2 in both directions, and with the concave groove of the accessory pressing against the gemstone sphere 3 in the center of the precious metal pendant ring, after the upper and lower parts are tightened and fixed, the connection between the upper and lower two precious metal single-sided concave thread structure accessories 2 and the nut 2b on the outside of the precious metal pendant ring is laser welded and repaired.
[0036] The outer upper center line of the precious metal pendant ring 1 has a longitudinally upward precious metal fixing groove 4b with a certain amount of allowance. The size of the lower structural round accessory 4 of the hole-shaped clasp is smaller than the size of the fixing groove 4b. The lower structural round accessory 4 of the hole-shaped clasp is placed into the precious metal fixing groove 4b with a certain amount of allowance on the outer upper center line of the precious metal pendant ring 1. Taking advantage of the good ductility of precious metal, the lower structural round accessory 4 of the hole-shaped clasp is pressed inward by a special tool to fix it in place. At the same time, appropriate rotation space is left for the lower structural round accessory 4 of the clasp so that the lower structural round accessory of the hole-shaped clasp can freely adjust the angle of the pendant according to the user's body movements when the consumer wears the precious metal necklace pendant.
[0037] The lower outer side of the precious metal pendant ring 1 is equipped with an information block code 5, such as a QR code or NFC chip.
[0038] The core technical challenge in the structural design of this precious metal pendant ring 1 for industrial application is how to ensure the stable setting of the gemstone sphere 3 while also considering wearing comfort, adjustable pendant angle, and integrated information functions, thereby enhancing the overall value of the jewelry in terms of aesthetics, functionality, and user experience. Existing technologies often rely solely on traditional prong setting, bezel setting, or cementing methods to secure the gemstone. These methods suffer from uneven stress on the gemstone, a high risk of it falling, rigid angle fixation, and difficulty in implementing information marking on the precious metal substrate. This invention solves these problems through the collaborative operation of multiple modules, and its working principle is described below.
[0039] First, the precious metal pendant ring 1 has nut holes 2b along its upper and lower center lines. These holes, along with the matching precious metal single-sided recessed threaded fitting 2, form a bidirectional tightening mechanical constraint system. The gemstone sphere 3 is placed within the recesses of the upper and lower fittings 2. By simultaneously tightening the upper and lower fittings 2, the gemstone sphere 3 is radially clamped and fixed. This process utilizes the axial displacement of the threaded post and the force-bearing surface formed by the top surface of the fitting recess to evenly distribute the clamping force, avoiding localized stress concentration and ensuring the integrity of the gemstone surface.
[0040] Secondly, after mechanically fixing the gemstone sphere 3, laser welding is used to weld and trim the connection between the threaded structure accessory 2 and the nut hole 2b. A locally integrated bonding layer is formed at the weld point, which not only further enhances the fixing strength but also ensures the continuity and aesthetics of the pendant ring 1. Laser welding, due to its small heat-affected zone, avoids damage to the gemstone sphere 3 caused by high temperatures.
[0041] Furthermore, a longitudinally upward fixing groove 4b is provided at the upper center line of the outer part of the precious metal pendant ring 1. The outer diameter of the round fitting 4 in the lower structure of the hole-type buckle is smaller than the inner diameter of the fixing groove 4b. During assembly, the round fitting 4 is placed into the fixing groove 4b, and then the longitudinal excess metal at the edge of the groove is pressed together by a special pressing tool, so that it is fastened inward. In this process, the ductility of the precious metal material is utilized to ensure the reliable assembly of the round fitting 4, and a small gap is retained after pressing, so that the round fitting 4 can maintain a moderate degree of rotational freedom within the fixing groove 4b.
[0042] The limiting fit between the fixing groove 4b and the round fitting 4 allows the buckle to automatically adjust its angle according to the user's neck or body movements during wear. This free rotation feature improves the dynamic performance of the pendant, making it look more natural and avoiding the pulling sensation caused by angle limitations, thus enhancing wearing comfort.
[0043] An information block code 5, which can be a QR code or an NFC chip, is set on one side of the lower outer part of the precious metal pendant ring 1. This information module 5 is integrated with the jewelry and can be used for product anti-counterfeiting traceability, brand identification, personalized information storage, and IoT interaction through scanning or sensing by a smart terminal. The introduction of the information block code 5 not only enhances the added value of the jewelry but also expands the precious metal pendant ring 1 from a simple decorative attribute to the field of intelligent applications.
[0044] This utility model achieves a unity of structural stability, wearing comfort, and information function through the integration of the nut hole 2b inside the pendant ring 1, the bidirectional clamping structure of the accessory 2, the laser welding sealing and fixing, the rotatable fastening mechanism between the external fixing groove 4b and the round accessory 4, and the external information module 5, bringing new application value and technological advancement to the precious metal jewelry industry.
[0045] Example 1: Personalized Self-Pleasant Necklace Pendant (Circle of Heaven and Earth)
[0046] Materials and structure of precious metal pendant rings:
[0047] Precious metal pendant ring 1 is made of 18k white gold. The pendant ring is a closed ring with a solid wall structure.
[0048] The precious metal pendant ring 1 is treated with sandblasting and brushing processes, giving it a sandy texture.
[0049] The precious metal pendant ring 1 has two precious metal nut holes 2b on its upper and lower center lines. The precious metal single-sided concave thread structure accessory 2 is screwed into the precious metal nut hole 2b. The processed natural aquamarine baby stone sphere 3 is placed in the concave groove of the lower single-sided concave thread structure accessory 2. By twisting the upper and lower precious metal single-sided concave thread structure accessories 2 in both directions, and with the concave groove pressing against the natural aquamarine baby stone sphere 3 in the center of the precious metal pendant ring, after tightening and fixing, the connection between the upper and lower precious metal single-sided concave thread structure accessories 2 and the nut 2b on the outside of the precious metal pendant ring is laser welded and repaired.
[0050] The outer upper center line of the precious metal pendant ring 1 has a longitudinally upward precious metal fixing groove 4b with a certain amount of allowance. The size of the lower structural circle 4 of the hole-shaped clasp is smaller than the size of the fixing groove 4b. The lower structural circle accessory 4 of the hole-shaped clasp is placed into the precious metal fixing groove 4b with a certain amount of allowance on the outer upper center line of the precious metal pendant ring 1. Taking advantage of the good ductility of precious metal, the lower structural circle accessory 4 of the hole-shaped clasp is pressed inward by a special tool to fix it in place. At the same time, appropriate rotation space is left for the lower structural circle accessory 4 of the clasp so that the lower structural circle of the hole-shaped clasp can freely adjust the angle of the pendant according to the user's body movements when the consumer wears the precious metal necklace pendant.
[0051] The lower outer side of the precious metal pendant ring 1 is equipped with an information block code 5, such as a QR code or NFC chip.
[0052] Custom text and logos can be engraved on the outside or inside of the precious metal pendant ring to enhance its personality and artistic appeal.
[0053] Example 2: Classic Heritage Necklace Pendant (Circle of Heaven and Earth)
[0054] Materials and structure of precious metal pendant rings:
[0055] Precious metal pendant ring 1 is made of 18k rose gold. The pendant ring is a closed ring with a solid wall structure.
[0056] Precious metal pendant ring 1 is treated with high polishing or matte finish.
[0057] The precious metal pendant ring 1 has two precious metal nut holes 2b on its upper and lower center lines. The precious metal single-sided concave thread structure accessory 2 is screwed into the precious metal nut hole 2b. The processed natural gemstone sphere 3 is placed in the concave groove of the upper and lower single-sided concave thread structure accessory 2. By twisting the upper and lower two precious metal single-sided concave thread structure accessories 2 in both directions, and with the concave groove pressing against the natural gemstone sphere 3 in the center of the precious metal pendant ring, after tightening and fixing, the connection between the upper and lower two precious metal single-sided concave thread structure accessories 2 and the nut 2b on the outside of the precious metal pendant ring is laser welded and repaired.
[0058] The outer upper center line of the precious metal pendant ring 1 has a longitudinally upward precious metal fixing groove 4b with a certain amount of allowance. The size of the lower structural circle 4 of the hole-shaped clasp is smaller than the size of the fixing groove 4b. The lower structural circle accessory 4 of the hole-shaped clasp is placed into the precious metal fixing groove 4b with a certain amount of allowance on the outer upper center line of the precious metal pendant ring 1. Taking advantage of the good ductility of precious metal, the lower structural circle accessory 4 of the hole-shaped clasp is pressed inward by a special tool to fix it in place. At the same time, appropriate rotation space is left for the lower structural circle accessory 4 of the clasp so that the lower structural circle of the hole-shaped clasp can freely adjust the angle of the pendant according to the user's body movements when the consumer wears the precious metal necklace pendant.
[0059] The lower outer side of the precious metal pendant ring 1 is equipped with an information block code 5, such as a QR code or NFC chip, which is used to record the customized person's narrative and company information to ensure uniqueness and anti-counterfeiting.
[0060] The outer or inner wall of the precious metal pendant ring can be engraved with heritage-related text and trademarks, or different patterns.
[0061] The two examples above demonstrate the application of the necklace pendant (Yuan Dong Qian Kun) in different materials and processes, respectively reflecting the different styles and unique charms of the personalized customization and classic heritage styles.
[0062] This utility model has nut holes on the upper and lower center lines inside the precious metal pendant ring. By twisting the precious metal single-sided concave thread structure accessories on the upper and lower center lines inside the precious metal pendant ring in both directions, the gemstone sphere in the center of the precious metal pendant ring is tightened and fixed. The gemstone sphere can slide with the user's finger touch, thus filling the technical gap of 360-degree free rotation of the gemstone sphere.
[0063] This utility model features two precious metal nut holes along the upper and lower center lines inside the precious metal pendant ring. A single-sided concave threaded precious metal accessory is screwed into the precious metal nut hole. A gemstone sphere is placed into the concave groove of the upper and lower single-sided concave threaded accessories. By bidirectionally screwing the two single-sided concave threaded precious metal accessories, with the concave groove of the accessory pressing against the gemstone sphere at the center of the precious metal pendant ring, the upper and lower parts are tightened and fixed. This technology fills a technological gap in the domestic and international jewelry industry.
[0064] This utility model features a precious metal fixing groove with a certain amount of vertical clearance on the upper center line of the outer side of the precious metal pendant ring. The size of the circular component of the lower structure of the hole-shaped buckle is smaller than the size of the fixing groove. The fixing technology of placing the circular component of the lower structure of the hole-shaped buckle into the precious metal fixing groove allows consumers to freely adjust the angle of the pendant with their body movements when wearing the precious metal necklace pendant.
[0065] This utility model features a single-sided information block code, such as a QR code or NFC chip, on the lower outer part of the precious metal pendant ring. This code can be used to record information about the person who ordered the item and the company, as well as for anti-counterfeiting purposes. It greatly satisfies the needs of modern users for emotional narrative value and opens up new directions for the practical functions and diversity of jewelry.
[0066] Example 3
[0067] A precious metal necklace pendant includes a pendant ring 1. Nut holes 2b are respectively formed along the upper and lower center lines inside the pendant ring 1. Two single-sided recessed threaded fittings 2 are screwed into the nut holes 2b respectively. A gemstone sphere 3 is placed in the recesses of the two fittings 2. Through bidirectional tightening, the recesses of the fittings 2 hold the gemstone sphere 3 in place, forming a stable clamping effect. The joint between the nut hole 2b and the fittings 2 is sealed and finished by laser welding to ensure overall robustness.
[0068] A longitudinally extending fixing groove 4b is formed at the upper center line of the outer part of the pendant ring 1. The round fitting 4 at the lower part of the hole-type buckle is inserted into the fixing groove 4b. By pressing the edge of the fixing groove 4b, the round fitting 4 is fastened and fixed, while maintaining a suitable gap for its rotation. An information block code 5 is provided on one side of the lower outer part of the pendant ring 1, which can be a QR code or an NFC chip.
[0069] Example 4
[0070] A precious metal necklace pendant, the pendant ring 1 is made into a closed circular shape with a solid wall. Nut holes 2b are respectively provided on the upper and lower center lines inside the pendant ring 1, which match the threaded fitting 2. A gemstone sphere 3 is held and fixed to the center of the pendant ring 1 by the groove of the fitting 2.
[0071] Because the pendant ring 1 is a solid structure, it has a strong resistance to deformation during long-term wear of the gemstone sphere 3, which can ensure that the two accessories 2 are stably locked for a long time and prevent loosening or displacement.
[0072] Example 5
[0073] A precious metal necklace pendant, wherein the diameter of the pendant ring 1 maintains a fixed ratio with its wall thickness, for example, 1:15. By changing the outer diameter and wall thickness, serialized production can be achieved from diameters of 20 mm to 40 mm and wall thicknesses of 1.3 mm to 2.6 mm.
[0074] Under different specifications, the proportional dimensions of the nut hole 2b and the accessory 2 are adjusted accordingly, so that the gemstone sphere 3 can be stably clamped under the same structural principle, thereby meeting different wearing needs.
[0075] Example 6
[0076] A precious metal necklace pendant, the outer surface of the pendant ring 1 is treated with different processes. Firstly, a polishing process is used to achieve a mirror-like surface, and sandblasting is applied to certain areas to create a contrasting texture of gloss and matte finish. Secondly, a brushed finish is applied, and then decorative gemstones are set in designated areas of the pendant ring 1.
[0077] Without changing the way the nut hole 2b inside the pendant ring 1, the accessory 2 and the gemstone sphere 3 are fixed, the appearance can be expanded through surface treatment.
[0078] Example 7
[0079] A precious metal necklace pendant, the outer surface of the pendant ring 1 is laser-engraved with text or a trademark, the engraving depth controlled to 0.2 mm. After engraving, small gemstones are additionally inlaid in symmetrical positions, echoing the inner gemstone sphere 3.
[0080] The aforementioned process does not affect the assembly relationship between the nut hole 2b inside the pendant ring 1 and the threaded fitting 2. The whole is still firmly fixed by the clamping of the gemstone sphere 3 by the upper and lower fittings 2.
[0081] Example 8
[0082] A precious metal necklace pendant has a groove formed on one side of the lower outer part of the pendant ring 1, into which an information block code 5 is embedded. One method is to use a micro NFC chip as the information block code 5, which is placed in the groove and then sealed with transparent resin; another method is to directly etch a QR code on the surface of the pendant ring 1 to form the information block code 5.
[0083] The information block code 5 is tightly integrated with the pendant ring 1, without affecting the core fixing structure of the nut hole 2b, threaded fitting 2 and gemstone sphere 3, ensuring the overall consistency of the jewelry.
[0084] 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.
[0085] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the technical scope disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model.
Claims
1. A precious metal necklace pendant, characterized in that, include: A precious metal pendant ring, wherein the pendant ring has two precious metal nut holes on the upper and lower center lines respectively, and is equipped with a single-sided concave thread structure fitting, which is screwed into the precious metal nut holes respectively. A gemstone sphere is placed in the concave groove of the fitting. By screwing the upper and lower fittings, the concave groove presses against the gemstone sphere, forming a fixed clamping of the gemstone sphere. The connection between the precious metal nut hole and the fitting is finished by laser welding. The upper center line of the outer part of the ornament ring is provided with a longitudinally extending fixing groove. The round fitting at the bottom of the hole-type buckle is inserted into the fixing groove. The round fitting is fastened and fixed by metal extrusion of the edge of the fixing groove. At the same time, a gap is left in the fixing groove to allow the round fitting to rotate. The lower outer part of the ornament ring has an information block code on one side.
2. The precious metal necklace pendant according to claim 1, characterized in that, The ornament ring is a closed circular structure with solid walls.
3. The precious metal necklace pendant according to claim 1, characterized in that, The diameter and wall thickness of the ornament ring are in a fixed ratio, and it can be made into different specifications according to needs.
4. The precious metal necklace pendant according to claim 1, characterized in that, The outer surface of the pendant ring is treated with polishing, wire drawing, inlaying or sandblasting processes.
5. The precious metal necklace pendant according to claim 1, characterized in that, The outer surface of the pendant ring is engraved with text or a trademark, and additional gemstones may be inlaid on its surface.
6. The precious metal necklace pendant according to claim 1, characterized in that, The information block code is a QR code or an NFC chip.
Citation Information
Patent Citations
US7937966B2