CN215303509U

CN215303509U - Platinum necklace

Info

Publication number: CN215303509U
Application number: CN202121340238.0U
Authority: CN
Inventors: 吴存局; 吴存超; 吴雪峰
Original assignee: Hangzhou Shengyuan Jewelry Co ltd
Current assignee: Hangzhou Shengyuan Jewelry Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-12-28
Anticipated expiration: 2031-06-16

Abstract

The application relates to the field of jewelry, in particular to a platinum necklace. A platinum necklace comprises a platinum pendant and a connecting ring, wherein the connecting ring is fixedly connected with the platinum pendant, the platinum necklace also comprises a combined chain body, the combined chain body is connected with the platinum pendant in a penetrating way through the connecting ring, and one end of the combined chain body is fixedly connected with a first magnetic connecting piece; the other end of the combined chain body is fixedly connected with a second magnetic connecting piece; the first magnetic connecting piece and the second magnetic connecting piece are connected through magnetic force. The advantage of platinum necklace in this application lies in wearing comparatively conveniently.

Description

Platinum necklace

Technical Field

The application relates to the field of jewelry, in particular to a platinum necklace.

Background

The necklace is used as a daily decoration article, can play a role in embellishing in clothes matching, and is more and more popular with people. The platinum necklace is made of platinum as a raw material, can be customized according to design and is popular with women.

Referring to fig. 1 and 2, currently, a platinum necklace in the related art includes a platinum pendant 1, a connecting ring 11, a chain body 12, a lobster button 13 and a matching ring 14, wherein the connecting ring 11 is integrally formed on the platinum pendant 1; the chain body 12 is penetrated by the connecting ring 11, so that the platinum pendant 1 is connected with the chain body 12; the matching rings 14 are connected to two ends of the chain body 12, that is, the matching rings 14 are respectively connected to two ends of the chain body 12. The lobster buckle 13 is fixedly connected with the lobster buckle 13 at one end of the chain body 12, and when the lobster buckle 13 is worn, the lobster buckle 13 is buckled on the matching and connecting circular ring 14.

With respect to the platinum necklace described above, the applicant found that: when the platinum necklace is worn, the lobster clasp needs to break the opening and closing key and then connect the adapting ring to the lobster. Wherein the lobster button and the matching ring have smaller sizes, and the problem that the platinum necklace is troublesome to wear exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the platinum necklace is worn relatively trouble, the application aims to provide a platinum necklace.

The application purpose of the application is realized by the following technical scheme:

a platinum necklace comprises a platinum pendant and a connecting ring, wherein the connecting ring is fixedly connected with the platinum pendant, the platinum necklace also comprises a combined chain body, the combined chain body is connected with the platinum pendant in a penetrating way through the connecting ring, and one end of the combined chain body is fixedly connected with a first magnetic connecting piece; the other end of the combined chain body is fixedly connected with a second magnetic connecting piece; the first magnetic connecting piece and the second magnetic connecting piece are connected through magnetic force.

Through adopting above-mentioned technical scheme, through the magnetic force linkage effect of first magnetic connecting piece and second magnetic connecting piece, can reduce the platinum necklace and wear the degree of difficulty for the platinum necklace of this application is worn comparatively conveniently.

Preferably, the first magnetic connecting piece and the second magnetic connecting piece have the same structure, and are both Ru magnetic sheets; the specification of the Ru magnetic sheet is 4-6mm in diameter and 0.6-1.2mm in thickness.

Through adopting above-mentioned technical scheme, the magnetic attraction of Ru magnetic sheet is stronger, can guarantee the joint strength of combination chain body, satisfies daily requirement of wearing, and the size of first magnetic connecting piece and second magnetic connecting piece is less, and is lower to the holistic pleasing to the eye degree influence of necklace.

Preferably, the first magnetic connector and the second magnetic connector are made of neodymium magnet materials; a groove is coaxially formed in the surface of the first magnetic connecting piece; a lug is integrally formed on the surface of the second magnetic connecting piece; the diameter of the bump is equal to that of the groove; the convex block can be seamlessly embedded in the groove.

Through adopting above-mentioned technical scheme, strengthened the joint strength of first magnetism connecting piece and second magnetism connecting piece, reduced the probability that first magnetism connecting piece breaks away from second magnetism connecting piece, promoted the connection stability of first magnetism connecting piece and second magnetism connecting piece.

Preferably, the first magnetic connector and the second magnetic connector are made of neodymium magnet materials; a groove is coaxially formed in the surface of the first magnetic connecting piece; a lug is integrally formed on the surface of the second magnetic connecting piece; a circle of first annular convex teeth are integrally formed at the upper part of the inner wall of the groove; the inner diameter of the first annular convex tooth is equal to the outer diameter of the convex block; a first annular groove is formed between the adjacent first annular convex teeth; a circle of second annular convex teeth are integrally formed in the middle of the outer wall of the convex block; the outer diameter of the second annular convex tooth is equal to the inner diameter of the groove; a second annular groove is formed between the adjacent second annular convex teeth; the second annular convex tooth can be embedded in the first annular groove.

Through adopting above-mentioned technical scheme, further promote the connection stability of first magnetic connector and second magnetic connector.

Preferably, the first magnetic connector and the second magnetic connector are made of neodymium magnet materials; a groove is coaxially formed in the surface of the first magnetic connecting piece; a lug is integrally formed on the surface of the second magnetic connecting piece; the upper part of the inner wall of the groove is clamped with a first ring body; a circle of third annular convex teeth are integrally formed on the inner wall of the first ring body; the inner diameter of the third annular convex tooth is equal to the outer diameter of the convex block; a third annular groove is formed between the adjacent third annular convex teeth; the middle part of the outer wall of the lug is clamped with a second ring body; a circle of fourth annular convex teeth are integrally formed on the inner wall of the outer wall of the second ring body; the outer diameter of the fourth annular convex tooth is equal to the inner diameter of the groove; a fourth annular groove is formed between the adjacent fourth annular convex teeth; the fourth annular convex tooth can be embedded in the third annular groove.

Through adopting above-mentioned technical scheme, further promote the connection stability of first magnetism connecting piece and second magnetism connecting piece, reduce holistic manufacturing cost simultaneously.

Preferably, the combined chain body comprises a main chain, a first adjusting chain body, a second adjusting chain body and a chain length adjusting piece, the main chain is connected with the platinum pendant in a penetrating mode through a connecting ring, and lobster buckles are connected to two ends of the main chain; one end of the first adjusting chain body is detachably connected with the lobster buckle at one end of the main chain, and the other end of the first adjusting chain body is fixedly connected with the first magnetic connecting piece; one end of the second adjusting chain body is detachably connected with the lobster buckle at the other end of the main chain, and the other end of the second adjusting chain body is fixedly connected with the second magnetic connecting piece; the chain length adjusting piece is used for adjusting the size of a neck enclosure surrounded by the first adjusting chain body, the second adjusting chain body and the main chain when the wearer wears the neck enclosure.

Through adopting above-mentioned technical scheme, adjust the neck size that the chain body encloses through adjustable main chain of chain length adjusting part, first regulation chain body, second, and then satisfy different neck surrounds crowd's the demand of wearing.

Preferably, the chain length adjusting piece comprises a chain length adjusting piece main body, and the chain length adjusting piece main body is a cuboid; a first round hole and a second round hole are formed in the side face of the chain length adjusting piece main body in the width direction in a penetrating mode; the central axis of the first round hole is parallel to the central axis of the second round hole; the first round hole is fixedly connected with a first rubber adjusting piece; the second round hole is fixedly connected with a second rubber adjusting piece; the first rubber adjusting piece is integrally formed with a first adjusting hole; the second rubber adjusting piece is integrally formed with a second adjusting hole; the diameter of the first adjusting hole is 0.05-0.2mm smaller than that of the first adjusting chain body; under a natural state, the first adjusting chain body is clamped in the first rubber adjusting piece, and when the first adjusting chain body is subjected to external acting force, the first adjusting chain body is connected to the first rubber adjusting piece in a sliding mode; the diameter of the second adjusting hole is 0.05-0.2mm smaller than that of the second adjusting chain body; under the natural state, the second is adjusted the chain body joint in second rubber regulating part, receives external effort as the second and adjusts the chain body, and second is adjusted chain body sliding connection in second rubber regulating part.

Through adopting above-mentioned technical scheme, can be comparatively convenient adjustment through chain length adjusting part and adjust the neck that the chain body encloses and enclose the size, and then satisfy different neck crowd's the demand of wearing.

Preferably, the chain length adjusting part main body is formed by clamping a first chain length adjusting block and a second chain length adjusting block.

By adopting the technical scheme, the mounting difficulty of the chain length adjusting piece is reduced, and meanwhile, the production cost of the chain length adjusting piece main body can also be reduced.

In summary, the present application has the following advantages:

1. this application adopts first magnetic connecting piece and second magnetic connecting piece to link together combination chain body magnetic force, can reduce the platinum necklace and wear the degree of difficulty for it is comparatively convenient that the platinum necklace is worn.

2. This application chain length adjusting part can be according to the neck size adjustment main chain of the person of wearing, the first neck size that encloses of adjusting chain body, second, and then satisfy different neck crowd's the demand of wearing.

Drawings

FIG. 1 is a schematic view showing the overall structure of a platinum necklace in the related art.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic view of the overall structure of embodiment 1 in the present application.

Fig. 4 is a partially enlarged view at B in fig. 3.

Fig. 5 is an overall structural schematic of embodiment 2 in the present application.

Fig. 6 is a partially enlarged view at C in fig. 5.

Fig. 7 is a structural schematic of the first magnetic coupling in embodiment 3 of the present application.

Fig. 8 is a structural schematic of the second magnetic coupling in embodiment 3 of the present application.

Fig. 9 is a structural schematic of the first magnetic coupling in embodiment 4 of the present application.

Fig. 10 is a structural schematic of the second magnetic coupling in embodiment 4 of the present application.

Fig. 11 is a schematic view of the overall structure of embodiment 5 in the present application.

FIG. 12 is a schematic view showing the structure of a chain length adjuster in example 5 of the present application.

In the figure, 1, a platinum pendant; 11. a connecting ring; 12. a chain body; 13. buckling lobsters; 14. a matching ring; 2. a combination chain body; 21. a main chain; 3. a first magnetic connector; 30. a second magnetic connector; 301. a bump; 302. a second annular lobe; 303. a second ring groove; 31. a groove; 32. a first annular lobe; 321. a first ring groove; 33. a first ring body; 331. a third annular lobe; 332. a third ring groove; 34. a second ring body; 341. a fourth annular lobe; 342. a fourth ring groove; 4. a first adjusting chain body; 5. a second adjusting chain body; 6. a chain length adjuster; 61. a chain length adjuster body; 611. a first chain length adjusting block; 612. a second chain length adjusting block; 613. a clamping block; 614. a clamping groove; 622. a second chain length adjusting block; 62. a first circular hole; 621. a first semicircular hole; 622. a second semicircular hole; 63. a second circular hole; 631. a third semicircular hole; 632. a fourth semicircular hole; 64. a first rubber regulating member; 641. a first adjustment aperture; 65. a second rubber adjusting member; 651. a second adjustment aperture.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples.

Example 1:

referring to fig. 3 and 4, for the platinum necklace disclosed in the present application, the platinum necklace comprises a platinum pendant 1, a connecting ring 11 and a combined chain body 2, wherein the connecting ring 11 is welded on the platinum pendant 1, and the combined chain body 2 is connected with the platinum pendant 1 by penetrating the connecting ring 11. One end of the combined chain body 2 is fixedly connected with a first magnetic connecting piece 3, and the first magnetic connecting piece 3 is a Ru magnetic sheet with the diameter of 6mm and the thickness of 1.0 mm. The other end of the combined chain body 2 is fixedly connected with a second magnetic connecting piece 30, and the second magnetic connecting piece 30 is a Ru magnetic sheet with the diameter of 6mm and the thickness of 1.0 mm. The first magnetic connecting piece 3 is connected with the second magnetic connecting piece 30 through magnetic force, so that the wearing difficulty of the platinum necklace can be reduced, and the platinum necklace can be worn conveniently.

Example 2:

example 2 differs from example 1 in that: referring to fig. 5 and 6, the first magnetic connector 3 and the second magnetic connector 30 are made of neodymium magnet. The first magnetic connecting piece 3 is a Ru magnetic sheet with the diameter of 6mm and the thickness of 1.6 mm. The surface of the first magnetic connector 3 is coaxially provided with a groove 31. The diameter of the groove 31 is 4mm and the groove depth is 1.0 mm.

Referring to fig. 5 and 6, the second magnetic coupling 30 is a ru magnetic sheet having a diameter of 6mm and a thickness of 1.6 mm. The second magnetic connector 30 has a protrusion 301 integrally formed on a surface thereof. The diameter of lug 301 is 4mm, highly is 1.0mm, has realized that lug 301 can seamless gomphosis in recess 31, strengthens the joint strength and the connection stability of first magnetic connector 3 and second magnetic connector 30, can satisfy platinum necklace's when platinum hangs and weighs 1 the quality heavier relatively and wear the demand.

Example 3:

example 3 differs from example 1 in that: referring to fig. 7 and 8, the first magnetic connector 3 and the second magnetic connector 30 are made of neodymium magnet. The surface of the first magnetic connector 3 is coaxially provided with a groove 31. The diameter of the groove 31 is 4mm and the groove depth is 2.0 mm. The second magnetic connecting piece 30 is a Ru magnetic sheet with a diameter of 6mm and a thickness of 1.6 mm. The second magnetic connector 30 has a protrusion 301 integrally formed on a surface thereof. The bump 301 has a diameter of 3.2mm and a height of 2.0 mm.

Referring to fig. 7 and 8, six first annular convex teeth 32 are integrally formed on the upper portion of the inner wall of the groove 31. The inner diameter of the first annular teeth 32 is 3.2mm and the arc of a single first annular tooth 32 is 50 °. First ring grooves 321 are formed between adjacent first annular convex teeth 32, and the radian of each first ring groove 321 is 12 degrees.

Referring to fig. 7 and 8, five second annular convex teeth 302 are integrally formed at the middle of the outer wall of the boss 301, the outer diameter of the second annular convex teeth 302 is 4mm and the arc of the single second annular convex tooth 302 is 12 °. A second annular groove 303 is formed between adjacent second annular convex teeth 302, and the radian of the second annular groove 303 is 50 degrees, so that the purpose that the second annular convex teeth 302 can be embedded in the first annular groove 321 is realized.

When the magnetic shoe is worn, the first magnetic connecting piece 3 and the second magnetic connecting piece 30 attract each other under the action of magnetic force, the convex block 301 is embedded in the groove 31, the second magnetic connecting piece 30 is rotated, so that the second annular convex tooth 302 can be embedded in the first annular groove 321, the second magnetic connecting piece 30 is pushed, the bottom surface of the convex block 301 is abutted against the bottom surface of the groove 31, and the second magnetic connecting piece 30 is rotated, so that the second annular convex tooth 302 is abutted against the first annular convex tooth 32.

Example 4:

example 4 differs from example 1 in that: referring to fig. 9 and 10, the first magnetic connector 3 and the second magnetic connector 30 are made of neodymium magnet. The surface of the first magnetic connector 3 is coaxially provided with a groove 31. The diameter of the groove 31 is 4mm and the groove depth is 2.0 mm. The second magnetic connecting piece 30 is a Ru magnetic sheet with a diameter of 6mm and a thickness of 1.6 mm. The second magnetic connector 30 has a protrusion 301 integrally formed on a surface thereof. The bumps 301 have a diameter of 3.0mm and a height of 2.0 mm.

Referring to fig. 9 and 10, a first ring body 33 made of PVC is fastened to an upper portion of an inner wall of the groove 31. The first ring body 33 is in interference fit with the groove 31, and the first ring body 33 is clamped on the upper part of the inner wall of the groove 31. Six third annular convex teeth 331 are integrally formed on the inner wall of the first ring body 33. The first ring body 33 has an outer diameter of 3.5 mm. The inner diameter of the third annular lobe 331 is 3.2mm and the arc of the single third annular lobe 331 is 50 °. A third ring groove 332 is formed between the adjacent third annular convex teeth 331, and the radian of the third ring groove 332 is 12 degrees.

Referring to fig. 9 and 10, the second ring 34 made of PVC is clamped in the middle of the outer wall of the protrusion 301. The outer diameter of the second ring 34 is 3.2 mm. The second ring 34 is in interference fit with the bump 301, so that the second ring 34 is clamped on the upper part of the outer wall of the bump 301. The outer wall of the second ring body 34 is integrally formed with five fourth annular convex teeth 341. The outer diameter of the fourth annular lobe 341 is 3.5mm and the arc of the single fourth annular lobe 341 is 12 °. A fourth ring groove 342 is formed between adjacent fourth annular teeth 341, the arc degree of the fourth ring groove 342 is 50 °, and the fourth annular teeth 341 can be fitted into the third ring groove 332.

When the magnetic shoe is worn, the first magnetic connecting piece 3 and the second magnetic connecting piece 30 attract each other under the action of magnetic force, the convex block 301 is embedded in the groove 31, the second magnetic connecting piece 30 is rotated, so that the fourth annular convex tooth 341 can be embedded in the third annular groove 332, the second magnetic connecting piece 30 is pushed, the bottom surface of the convex block 301 is abutted against the bottom surface of the groove 31, and the second magnetic connecting piece 30 is rotated, so that the fourth annular convex tooth 341 is abutted against the third annular convex tooth 331.

Example 5:

example 5 differs from example 1 in that: referring to fig. 11, the assembled chain body 2 includes a main chain 21, a first regulatory chain body 4, a second regulatory chain body 5, and a chain length regulator 6. Wherein, the main chain 21 is connected with the platinum pendant 1 by penetrating through the connecting ring 11, and the two ends of the main chain 21 are fixedly connected with the lobster buttons 13. One end of the first adjusting chain body 4 is buckled with the lobster buckle 13 at one end of the main chain 21, and the other end of the first adjusting chain body 4 is fixedly connected with the first magnetic connecting piece 3. One end of the second adjusting chain body 5 is buckled with the lobster buckle 13 at the other end of the main chain 21, and the other end of the second adjusting chain body 5 is fixedly connected with the second magnetic connecting piece 30.

Referring to fig. 11 and 12, the chain length adjuster 6 is used to adjust the size of a neck surrounded by the first adjusting chain 4, the second adjusting chain 5, and the main chain 21 when worn. The concrete structure is as follows: the chain length adjusting piece 6 comprises a chain length adjusting piece main body 61, the chain length adjusting piece main body 61 is a cuboid, and the chain length adjusting piece main body 61 is formed by clamping a first chain length adjusting block 611 and a second chain length adjusting block 612. First semicircle orifice 621, second semicircle orifice 622 have been seted up along self length direction on first chain length regulating block 611 surface, and first semicircle orifice 621 and second semicircle orifice 622 are spaced each other. Third semicircle orifice 631 and fourth semicircle orifice 632 are opened along the length direction on the surface of second chain length adjusting block 612. The third semicircular hole 631 is spaced apart from the fourth semicircular hole 632. A catching block 613 is integrally formed on the surface of the first chain length adjusting block 611. A clamping groove 614 is integrally formed in the surface of the second chain length adjusting block 612, and the clamping block 613 is in addiction fit with the clamping groove 614, so that the first chain length adjusting block 611 is clamped in the second chain length adjusting block 612 to form the chain length adjusting part main body 61.

Referring to fig. 11 and 12, when the first chain length adjusting block 611 is engaged with the second chain length adjusting block 612, a first circular hole 62 is formed between the first semicircular hole 621 and the third semicircular hole 631. The second round hole 63 is formed in the second and fourth round holes 622 and 632. The central axis of the first circular hole 62 and the central axis of the second circular hole 63 are parallel to each other. A first rubber adjusting piece 64 is fixedly connected in the first round hole 62 through glue. A second rubber adjusting piece 65 is fixedly connected in the second round hole 63 through glue.

Referring to fig. 11 and 12, the first rubber adjuster 64 is made of rubber, and the first rubber adjuster 64 is integrally formed with a first adjustment hole 641. The diameter of the first adjusting hole 641 is 0.1mm smaller than the diameter of the first adjusting chain body 4. Under the natural state (not receive external force), first regulation chain body 4 receives the deformation effort of first rubber regulating part 64, and the joint is in first regulation hole 641 of first rubber regulating part 64. When the first adjusting chain body 4 is acted by external force, the wearer pulls the first adjusting chain body 4, so that the first adjusting chain body 4 can slide in the first rubber adjusting piece 64, and the size of the neck surrounded by the first adjusting chain body 4, the second adjusting chain body 5 and the main chain 21 is adjusted when the wearer wears the neck-adjusting device.

Referring to fig. 11 and 12, the second rubber adjusting member 65 is made of rubber, and a second adjusting hole 651 is integrally formed in the second rubber adjusting member 65. The diameter of the second adjusting hole 651 is 0.1mm smaller than that of the second adjusting chain body 5; under the natural state (not receive external force), the second is adjusted chain body 5 and is received the deformation effort of second rubber regulating part 65, and the joint is in the first regulation hole 641 of second rubber regulating part 65. When the second adjusting chain body 5 is acted by external force, the wearer pulls the second adjusting chain body 5, so that the second adjusting chain body 5 can slide in the second rubber adjusting piece 65, and the size of the neck surrounded by the first adjusting chain body 4, the second adjusting chain body 5 and the main chain 21 is adjusted when the wearer wears the neck-adjusting device.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a platinum necklace, hangs drop (1) and go-between (11) including platinum, and go-between (11) fixed connection hangs drop (1), its characterized in that in platinum: the combined chain is characterized by further comprising a combined chain body (2), the combined chain body (2) penetrates through a connecting ring (11) to be connected with the platinum pendant (1), and one end of the combined chain body (2) is fixedly connected with a first magnetic connecting piece (3); the other end of the combined chain body (2) is fixedly connected with a second magnetic connecting piece (30); the first magnetic connector (3) and the second magnetic connector (30) are connected through magnetic force.

2. A platinum necklace as in claim 1 wherein: the first magnetic connecting piece (3) and the second magnetic connecting piece (30) have the same structure, and the first magnetic connecting piece (3) and the second magnetic connecting piece (30) are Ru magnetic sheets; the specification of the Ru magnetic sheet is 4-6mm in diameter and 0.6-1.2mm in thickness.

3. A platinum necklace as in claim 1 wherein: the first magnetic connector (3) and the second magnetic connector (30) are both made of neodymium magnet materials; a groove (31) is coaxially formed in the surface of the first magnetic connecting piece (3); a lug (301) is integrally formed on the surface of the second magnetic connecting piece (30); the diameter of the bump (301) is equal to that of the groove (31); the convex block (301) can be seamlessly embedded in the groove (31).

4. A platinum necklace as in claim 1 wherein: the first magnetic connector (3) and the second magnetic connector (30) are both made of neodymium magnet materials; a groove (31) is coaxially formed in the surface of the first magnetic connecting piece (3); a lug (301) is integrally formed on the surface of the second magnetic connecting piece (30); a circle of first annular convex teeth (32) are integrally formed at the upper part of the inner wall of the groove (31); the inner diameter of the first annular convex tooth (32) is equal to the outer diameter of the convex block (301); a first annular groove (321) is formed between the adjacent first annular convex teeth (32); a circle of second annular convex teeth (302) are integrally formed in the middle of the outer wall of the bump (301); the outer diameter of the second annular convex tooth (302) is equal to the inner diameter of the groove (31); a second annular groove (303) is formed between the adjacent second annular convex teeth (302); the second annular convex tooth (302) can be embedded in the first annular groove (321).

5. A platinum necklace as in claim 1 wherein: the first magnetic connector (3) and the second magnetic connector (30) are both made of neodymium magnet materials; a groove (31) is coaxially formed in the surface of the first magnetic connecting piece (3); a lug (301) is integrally formed on the surface of the second magnetic connecting piece (30); a first ring body (33) is clamped at the upper part of the inner wall of the groove (31); a circle of third annular convex teeth (331) are integrally formed on the inner wall of the first ring body (33); the inner diameter of the third annular convex tooth (331) is equal to the outer diameter of the convex block (301); a third ring groove (332) is formed between the adjacent third annular convex teeth (331); the middle part of the outer wall of the convex block (301) is clamped with a second ring body (34); a ring of fourth annular convex teeth (341) are integrally formed on the inner wall of the outer wall of the second ring body (34); the outer diameter of the fourth annular convex tooth (341) is equal to the inner diameter of the groove (31); a fourth ring groove (342) is formed between the adjacent fourth annular convex teeth (341); the fourth annular convex tooth (341) can be embedded in the third annular groove (332).

6. A platinum necklace as in claim 1 wherein: the combined chain body (2) comprises a main chain (21), a first adjusting chain body (4), a second adjusting chain body (5) and a chain length adjusting piece (6), the main chain (21) is connected with the platinum pendant (1) through a connecting ring (11), and two ends of the main chain (21) are connected with lobster buttons (13); one end of the first adjusting chain body (4) is detachably connected with the lobster buckle (13) at one end of the main chain (21), and the other end of the first adjusting chain body (4) is fixedly connected with the first magnetic connecting piece (3); one end of the second adjusting chain body (5) is detachably connected with the lobster buckle (13) at the other end of the main chain (21), and the other end of the second adjusting chain body (5) is fixedly connected with the second magnetic connecting piece (30); the chain length adjusting piece (6) is used for adjusting the size of a neck surrounded by the first adjusting chain body (4), the second adjusting chain body (5) and the main chain (21) when the neck-adjustable clothes are worn.

7. A platinum necklace as in claim 6 further comprising: the chain length adjusting piece (6) comprises a chain length adjusting piece main body (61), and the chain length adjusting piece main body (61) is a cuboid; a first round hole (62) and a second round hole (63) penetrate through the side surface of the chain length adjusting part main body (61) in the width direction; the central axis of the first round hole (62) is parallel to the central axis of the second round hole (63); the first round hole (62) is fixedly connected with a first rubber adjusting piece (64); the second round hole (63) is fixedly connected with a second rubber adjusting piece (65); the first rubber adjusting piece (64) is integrally formed with a first adjusting hole (641); a second rubber adjusting piece (65) is integrally formed with a second adjusting hole (651); the diameter of the first adjusting hole (641) is 0.05-0.2mm smaller than that of the first adjusting chain body (4); under a natural state, the first adjusting chain body (4) is clamped on the first rubber adjusting piece (64), and when the first adjusting chain body (4) is subjected to external acting force, the first adjusting chain body (4) is connected to the first rubber adjusting piece (64) in a sliding mode; the diameter of the second adjusting hole (651) is 0.05-0.2mm smaller than that of the second adjusting chain body (5); under the natural state, second regulation chain body (5) joint in second rubber regulating part (65), receive external effort when second regulation chain body (5), second regulation chain body (5) sliding connection in second rubber regulating part (65).

8. A platinum necklace as in claim 7 further comprising: the chain length adjusting piece main body (61) is formed by clamping a first chain length adjusting block (611) and a second chain length adjusting block (612).