CN217117684U - Trick lock shape pendant and have its necklace - Google Patents

Abstract

The utility model provides a trick lock shape pendant and have its necklace relates to ornaments technical field. A coded lock-shaped pendant comprises a first mandrel, a second mandrel and a plurality of assembling blocks; one end of the first mandrel is provided with a first opening, and the other end of the first mandrel is provided with a first limiting block; the second mandrel is inserted into the first mandrel and is provided with a second limiting block and a plurality of connecting parts; the first exposed surface of the assembling blocks is provided with a number and/or character mark, the assembling blocks are positioned between the first limiting block and the second limiting block, matching parts are arranged in the jacks, and the matching parts on the assembling blocks are connected with the connecting parts in a one-to-one correspondence manner. The utility model discloses be components of a whole that can function independently package assembly with the pendant design, not only assembly process is simple, moreover can selective formation multiple numbers or characters combination when the assembly, improved the interest of product, need not the many sets of moulds of customization simultaneously, reduced manufacturing cost.

Description

Trick lock shape pendant and have its necklace

Technical Field

The utility model relates to an ornaments technical field particularly, relates to a trick lock shape pendant and have its necklace.

Background

With the improvement of the living standard of people, ornaments such as jewelry are more and more popular with people, and meanwhile, higher and higher requirements are put forward on the varieties, styles and the like of the jewelry.

The existing coded lock-shaped pendant structure is of an integrated structure and comprises a cylindrical structure, the outer surface of the cylindrical structure is provided with an annular bulge, the production and processing of the structures such as numbers and grooves on the annular bulge are all carried out on the surface of the cylindrical structure, the processing difficulty is high, and multiple sets of dies are needed to be adopted for manufacturing if multiple numbers or character combinations are needed to be realized, the difficulty is high, the production cost is increased, therefore, only one number or character combination is generally available after the coded lock-shaped pendant leaves a factory, and the interestingness of the product is reduced.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a trick lock shape pendant to solve current trick lock shape pendant single structure, the processing degree of difficulty is big, the interesting poor problem of product.

In order to solve the problems, the utility model firstly provides a coded lock pendant, which comprises a first mandrel, a second mandrel and a plurality of splicing blocks; the first core shaft is hollow, a first opening is formed in one end of the first core shaft, and a first limiting block is arranged at one end, away from the first opening, of the first core shaft; the second mandrel is inserted into the first mandrel through the first opening, a second limiting block is arranged at one end, away from the first limiting block, of the second mandrel, a plurality of connecting parts are arranged on the outer wall of the second mandrel along the axial direction of the second mandrel, and a second opening for exposing the connecting parts is formed in the side wall of the first mandrel; the assembling blocks are provided with jacks for the first mandrels to insert, the assembling blocks are positioned between the first limiting blocks and the second limiting blocks, matching parts are arranged in the jacks, and the matching parts on the assembling blocks are connected with the connecting parts in a one-to-one corresponding mode; and the first exposed surface of the splicing block is provided with a digital and/or character mark.

Further, the connecting part is a connecting bulge arranged on the second mandrel; the matching part is a connecting groove matched with the connecting protrusion.

Further, the inner wall of the jack is provided with an arc track arranged along the circumferential direction of the jack, and the arc track is communicated with the connecting groove; the connecting protrusion positioned in the connecting groove can enter the arc track and slide relative to the arc track.

Furthermore, one end of the first mandrel, which is provided with the first opening, is sleeved with a limiting snap ring; the radial size of the limiting snap ring is smaller than that of the assembling block; one side of the limiting snap ring is abutted to the assembling block, and the other side of the limiting snap ring is abutted to the second limiting block.

Furthermore, a plurality of first through holes are formed in the side wall of the first mandrel; and/or the second mandrel is hollow, and a plurality of second through holes are formed in the side wall of the second mandrel.

Furthermore, the first limiting block is provided with a second exposed surface, and the second exposed surface is provided with a digital and/or character mark; and/or the second limiting block is provided with a third exposed surface, and the third exposed surface is provided with a number and/or character mark.

Furthermore, the outer contour of the section of the splicing block is polygonal along the axial direction perpendicular to the first mandrel; the outer contours of the sections of the first limiting block and the second limiting block are polygonal along the axial direction perpendicular to the first mandrel; the projections of the first limiting block, the assembling block and the second limiting block on a plane perpendicular to the axial direction of the first mandrel are overlapped.

Furthermore, along the axial direction of the first mandrel, at least one of two opposite sides of the assembling blocks is provided with a supporting boss, and the supporting boss of one assembling block is abutted against the adjacent assembling block.

Furthermore, a first hanging lug is arranged on the first limiting block, and/or a second hanging lug is arranged on the second limiting block.

A second object of the present invention is to provide a necklace comprising a necklace body and a pendant shaped like the above technical solution, wherein the necklace body is connected to the pendant shaped like the puzzle lock.

According to the utility model provides a trick lock shape pendant and have its necklace, design the pendant for components of a whole that can function independently package assembly, when assembling, install a plurality of pieces of assembling in proper order at first spindle, come fixed a plurality of password components of assembling the piece formation through the cooperation between connecting portion and the cooperation portion, then insert the second dabber, it is spacing to carry out both ends to the group of assembling by utilizing first stopper and second stopper, not only assembly process is simple, and can the multiple digit of selective formation or characters combination when the assembly, the interest of product has been improved, and need not to customize many sets of moulds, and a production cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a combination lock-shaped pendant provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of a first mandrel of a coded lock-shaped pendant provided in an embodiment of the present invention;

fig. 3 is a schematic structural view of a second mandrel of the combination lock-shaped pendant according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram (one) of an assembly block of the combination lock-shaped pendant provided by the embodiment of the present invention;

fig. 5 is a schematic structural diagram (ii) of an assembly block of the combination lock-shaped pendant provided by the embodiment of the present invention;

fig. 6 is a schematic structural view of the combination lock-shaped pendant provided by the embodiment of the present invention after being sectioned by the assembling block;

fig. 7 is a schematic structural diagram of a digital combination of the combination lock-shaped pendant provided in the embodiment of the present invention;

fig. 8 is a schematic structural view of a character combination of the combination lock-shaped pendant according to the embodiment of the present invention;

fig. 9 is a schematic structural view of a necklace provided by an embodiment of the invention;

fig. 10 is a schematic structural view of a necklace used as a bracelet according to an embodiment of the invention.

Description of the reference numerals:

100-a first mandrel; 110-an opening; 120-a first stopper; 121-a second exposed face; 122-a first ear; 130-a first via;

200-a second mandrel; 210-a second stopper; 211-third exposed surface; 212-a second hanger; 220-a connecting portion; 230-a second via;

300-assembling blocks; 310-a jack; 311-circular arc orbit; 320-a first exposed face; 330-a mating portion; 340-support bosses;

400-a limit snap ring;

500-necklace body.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

For the existing coded lock-shaped pendant, because the whole coded lock-shaped pendant is of an integrated cylindrical structure, marks such as numbers and characters are processed on the cylinder body through a die or etching, if the combination of various numbers and characters needs to leave a factory, various dies or etching logics need to be configured correspondingly, so that the production cost is increased undoubtedly, the mass production is not facilitated, common manufacturers only leave a factory for one to two numbers or character combinations in order to save the cost, various numbers or character combinations cannot be realized, and the interestingness and the ornamental value of the coded lock-shaped pendant are greatly reduced.

In view of this, the present embodiment provides a combination lock-shaped pendant to solve the above drawbacks of the existing combination lock-shaped pendant.

Referring to fig. 1, fig. 2 and fig. 3, the pendant in the shape of the combination lock provided in this embodiment includes a first mandrel 100, a second mandrel 200 and a plurality of assembling blocks 300, wherein the plurality of assembling blocks 300 are sleeved on the first mandrel 100, and it should be noted that the "shape of the combination lock" in this embodiment refers to a shape similar or similar to the shape of the combination lock, and does not have the functions of locking doors and windows of a conventional combination lock in terms of function.

Referring to fig. 2, an inside of the first mandrel 100 of the present embodiment is hollow, and one end of the first mandrel 100 is provided with a first opening 110, and one end of the first mandrel 100 departing from the first opening 110 is provided with a first limiting block 120, referring to fig. 3, the second mandrel 200 of the present embodiment may be inserted into the first mandrel 100 through the first opening 110, so that the radial dimension of the first mandrel 100 of the present embodiment needs to be configured to be larger than the radial dimension of the second mandrel 200 to meet the requirements of the two in-package fit, in order to cooperate with the first limiting block 120 to limit the plurality of assembling blocks 300, in the present embodiment, one end of the second mandrel 200 departing from the first limiting block 120 is provided with a second limiting block 210.

Referring to fig. 4 and 5, in order to enable the building block 300 to be sleeved on the first mandrel 100, in the present embodiment, a socket 310 is provided at the middle of the building block 300, the shape of the socket 310 is adapted to the cross-sectional shape of the outer wall of the first mandrel 100, such as a circle in the drawing, a plurality of building blocks 300 are sequentially sleeved on the first mandrel 100 through the socket 310 and are limited between the first limiting block 120 and the second limiting block 210, the building block 300 assembled on the first mandrel 100 is provided with a first exposed surface 320, the first exposed surface 320 may be a circular arc surface or may be formed by a plurality of planes shown in the drawing, the first exposed surface 320 is provided with a number and/or character mark (not shown in fig. 4 and 5 and shown in fig. 7 and 8), so that the number or character can be freely combined during the assembling process, such as a plurality of figure combinations with certain meanings such as "1314" and "520" in fig. 7, for example, the word combination with certain meaning such as "wish to live with your lifetime" shown in fig. 8.

In order to facilitate the plurality of assembling blocks 300 to be positioned and sleeved on the first mandrel 100, the connecting portion 220 is disposed on the outer wall of the second mandrel 2000 in the embodiment, the plurality of connecting portions 220 are disposed at even intervals along the axial direction of the first mandrel 100, and a second opening (not shown in the figure) for exposing the connecting portion 220 needs to be disposed on the side wall of the first mandrel 100, the second opening is shaped like a bar and is open at one axial end of the first mandrel 100, so that the connecting portion 220 can enter the assembling block, correspondingly, the matching portion 330 is disposed in the insertion hole 310 of the assembling blocks 300 in the embodiment, the matching portion 330 is connected and matched with the plurality of connecting portions 220, and the second mandrel is further implemented.

The connecting portion 220 of this embodiment may be directly disposed on the outer wall of the first mandrel 100, the arrangement manner may be that the first mandrel 100 is integrally connected with the connecting portion 220, and during assembly, the plurality of assembling blocks 300 are sequentially mounted on the first mandrel 100, the connecting structure of this embodiment may be one of the connecting protrusion and the connecting groove, the matching structure of this embodiment may be the other of the connecting protrusion and the connecting groove, and the positioning of the assembling blocks 300 in the radial direction of the first mandrel 100 is realized by the engagement between the connecting protrusion and the connecting groove.

As a preferred embodiment of the present embodiment, referring to fig. 3 and 5, the connecting portion 220 of the present embodiment is a connecting protrusion disposed on the first mandrel 100, the matching portion 330 is a connecting groove adapted to the connecting protrusion, and a plurality of connecting grooves have a certain interval and form an interrupted channel, which is because if the connecting groove is formed on the second mandrel 200, the inner wall of the second mandrel 200 needs to have a certain thickness, and the light weight of the product cannot be achieved.

During assembly, the assembling blocks 300 are firstly sleeved on the first mandrel 100, the connecting grooves of the assembling blocks are all opposite to the second opening of the first mandrel 100, then a limiting snap ring 400 is installed on the first opening 110 of the first mandrel 100, then the second mandrel 200 is inserted into the first mandrel 100, in the inserting process, the connecting protrusions penetrate through the discontinuous channels formed by the connecting grooves, after the second mandrel 200 is completely inserted into the first mandrel 100, the connecting protrusions and the connecting grooves are in one-to-one corresponding connection and matching, primary fixing of the assembling blocks 300 is achieved, and the second mandrel 200 and the first mandrel 100 can be released from being connected at any time in the state at the time, namely, unlocking is facilitated.

Based on the structure of the connecting protrusion and the connecting groove, the present embodiment further improves the assembling block 300, and as shown in fig. 6 (fig. 6 is a view of the assembling block 300 after being cut by half), the inner wall of the insertion hole 310 of the assembling block 300 of the present embodiment is provided with an arc track 311 along the circumferential direction thereof, the arc track 311 is communicated with the connecting groove, and the connecting protrusion located in the connecting groove can enter the arc track 311 and slide relative to the arc track 311.

By adopting the structure of the circular arc track 311, after the second mandrel 200 is completely inserted into the first mandrel 100, the connecting protrusion is clamped with the corresponding connecting groove, and then the connecting protrusion directly enters the circular arc track 311 by rotating the assembling block 300, so that the relative sliding between the connecting protrusion and the circular arc track 311 is realized, and therefore, the assembling block 300 is rotated to realize more digital arrangement combinations, and the circular arc track 311 is designed to be matched with the connecting protrusion in size, so that the rotated assembling block 300 can be kept fixed under the friction force of the circular arc track 311 and the connecting protrusion; when the unlocking is needed, the assembling blocks 300 are rotated, so that the connecting protrusions and the connecting grooves are connected and matched in a one-to-one correspondence mode, and the second mandrel 200 in the embodiment can be drawn out at the moment.

In order to realize the initial fixation of the assembling block 300 sleeved on the first mandrel 100, in this embodiment, the end of the first mandrel 100 provided with the first opening 110 is sleeved with the limiting snap ring 400, the radial dimension of the limiting snap ring 400 is smaller than the radial dimension of the assembling block 300, one side of the limiting snap ring 400 abuts against the assembling block 300 deviating from the first limiting block 120, and the other side abuts against the second limiting block 210, because of the existence of the limiting snap ring 400, and the radial dimension of the limiting snap ring is smaller than the assembling block 300 and the second limiting block 210, a certain interval can be generated between the second limiting block 210 and the adjacent assembling block 300, and the visual distinction between the second limiting block and the adjacent assembling block 300 is facilitated, in addition, the tight abutting of the limiting snap ring 400 and the second limiting block 210 and the assembling block 300 can also limit the rotation of the second mandrel 200 in the first mandrel 100 to a certain extent, and the integration and multiple purposes are also realized.

Referring to fig. 2 and fig. 3, in order to reduce the weight of the product and reduce the consumable items for production, the present embodiment further improves the first mandrel 100 and the second mandrel 200, a plurality of first through holes 130 are formed in the side wall of the first mandrel 100, the second mandrel 200 is also designed to be an internal hollow structure, a plurality of second through holes 230 are formed in the side wall of the second mandrel 200, and both the first through holes 130 and the second through holes 230 can be honeycomb structures, so as to improve the structural strength of the first mandrel 100 and the second mandrel 200.

Referring to fig. 7 and 8, in this embodiment, optionally, the first limiting block 120 is provided with a second exposed surface 121, and the second exposed surface 121 is provided with a number and/or a character mark; similarly, the second limiting block 210 is provided with a third exposed surface 211, and the third exposed surface 211 is provided with a number and/or a character mark, that is, in this embodiment, the first limiting block 120 and the second limiting block 210 having a limiting effect are regarded as part of the assembly block 300 assembly formed by the plurality of assembly blocks 300, so that the shape and size of the outer contour of the first limiting block 120 and the second limiting block 210 can be further designed to be the same as the shape and size of the outer contour of the assembly block 300, and the projections of the first limiting block 120, the assembly block 300 and the second limiting block 210 on the plane perpendicular to the axial direction of the first mandrel 100 are overlapped, so that the first limiting block 120 and the second limiting block 210 play a limiting effect and can be combined with the assembly block 300 to form a number or character combination.

Based on the combined action of the first stopper 120, the second stopper 210 and the assembling block 300, in the axial direction perpendicular to the first core 100, the outer contour of the cross section of the assembling block 300 of the present embodiment is polygonal, such as hexagonal in the drawing, and similarly, in the axial direction perpendicular to the first core 100, the outer contour of the cross section of the first stopper 120 and the second stopper 210 is polygonal, such as hexagonal in the drawing, and when the first stopper 120, the second stopper 210 and the assembling block 300 of the present embodiment are hexagonal, the number of the first exposed surface 320, the second exposed surface 121 and the third exposed surface 211 is six, so that a number or a character can be formed on each exposed surface, and a character or a character combination is formed by the adjacent rows of the first exposed surface 320, the second exposed surface 121 and the third exposed surface 211.

Certainly, the structural forms of the first stopper 120, the second stopper 210 and the assembling block 300 of this embodiment are not limited to this, for example, the three are all cylindrical, at this time, the number of the first exposed surface 320, the second exposed surface 121 and the third exposed surface 211 is one, and all the exposed surfaces are circular ring surfaces, at this time, a plurality of characters or numbers can be formed on the first exposed surface 320, the second exposed surface 121 and the third exposed surface 211 at intervals, and adjacent characters or numbers form a combination together.

Referring to fig. 1 again, in order to enable visual distinction between two adjacent assembling blocks 300, so that the overall appearance formed by the assembling blocks 300 is similar to that of a coded lock, and the aesthetic measure of the product is improved, in the axial direction of the first mandrel 100, at least one of two opposite sides of the assembling block 300 of this embodiment is provided with a supporting boss 340, the radial dimension of the supporting boss 340 is smaller than that of the assembling block 300, the supporting boss 340 of one assembling block 300 is abutted against another adjacent assembling block 300, and it should be noted that the embodiment only provides a form in which one side of the assembling block 300 is provided with the supporting boss 340.

In addition, in order to facilitate the connection of the pendant with other structures (such as the necklace body 500 described below), the first hanging ring 122 is disposed on the outer side of the first limiting block 120, and the second hanging ring 212 is disposed on the outer side of the second limiting block 210.

During the assembly of the trick lock shape pendant of this embodiment, at first correspondingly install a plurality of pieces 300 on first dabber 100 according to the digit or the characters combination of selecting in proper order, and make a plurality of connecting portion 220 and a plurality of cooperation portion 330 be connected the cooperation, then with spacing snap ring 400 suit in the one end that first dabber 100 deviates from first locating part, afterwards, insert the second dabber 200 of this embodiment on first dabber 100, and make the inboard of second stopper 210 closely laminate with spacing snap ring 400, first stopper 120, second stopper 210 and spacing snap ring 400 are together spacing fixed a plurality of pieces 300 of assembling in first dabber 100 footpath this moment.

In conclusion, according to the combination lock-shaped pendant and the necklace with the same provided by the embodiment, the pendant is designed to be a split assembly structure, in assembly, the plurality of building blocks 300 are sequentially mounted on the first core 100, the plurality of building blocks 300 are fixed by the cooperation between the connection parts 220 and the fitting parts 330, and the assembling blocks 300 are combined with the first stopper 120 and the second stopper 210 to form a number or a letter, while the overall aesthetic property of the product is realized, the first stopper 120 and the second stopper 210 also realize the integrated multi-purpose, and the assembly is limited at both ends by the first limiting block 120 and the second limiting block 210 after the second mandrel 200 is inserted, not only the assembly process is simple, various numbers or character combinations can be selectively formed during assembly, the interestingness of the product is improved, multiple sets of dies do not need to be customized, and the production cost is reduced; in addition, the customer can disassemble the product to replace the number or character combination in the wearing process, and the interestingness of the product is further improved.

Referring to fig. 9, based on the combination lock-shaped pendant provided in this embodiment, this embodiment further provides a necklace, which includes a necklace body 500 and the combination lock-shaped pendant according to the above technical solution, the necklace body 500 is connected to the combination lock-shaped pendant, specifically, one end of the necklace body 500 is connected to the first hanging ring 122, and the other end is connected to the second hanging ring 212.

As shown in fig. 10, the necklace provided by this embodiment can also be worn as a bracelet, and the radial size of the necklace body 500 can be changed into the radial size of the bracelet by winding the necklace body 500 around the wrist of the user for two to three turns, thereby realizing multiple functions as a whole.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Claims (10)

1. A combination lock shaped pendant comprising:

the inner part of the first mandrel (100) is hollow, a first opening (110) is formed in one end of the first mandrel (100), and a first limiting block (120) is arranged at one end, deviating from the first opening (110), of the first mandrel (100);

the second mandrel (200) is inserted into the first mandrel (100) through the first opening (110), a second limiting block (210) is arranged at one end, away from the first limiting block (120), of the second mandrel (200), a plurality of connecting parts (220) are arranged on the outer wall of the second mandrel (200) along the axial direction of the second mandrel, and a second opening for exposing the connecting parts (220) is formed in the side wall of the first mandrel (100); and

each assembling block (300) is provided with a jack (310) into which the first mandrel (100) is inserted, the assembling blocks (300) are arranged between the first limiting block (120) and the second limiting block (210) through the jacks (310), a matching part (330) is arranged in each jack (310), and the matching parts (330) are connected with the connecting parts (220) in a one-to-one corresponding mode; the first exposed surface (320) of the splicing block (300) is provided with a number and/or character mark.

2. The drop shaped as a combination lock according to claim 1, wherein the connecting portion (220) is a connecting protrusion provided on the second mandrel (200); the matching part (330) is a connecting groove matched with the connecting protrusion.

3. The coded lock-shaped pendant according to claim 2, wherein the inner wall of the insertion hole (310) is provided with an arc track (311) along the circumferential direction thereof, and the arc track (311) is communicated with the connecting groove;

the connecting protrusion positioned in the connecting groove can enter the circular arc track (311) and slide relative to the circular arc track (311).

4. The coded lock shaped pendant of claim 1 wherein a limiting snap ring (400) is sleeved on one end of the first mandrel (100) where the first opening (110) is located;

one side of the limiting snap ring (400) is abutted against the assembling block (300), and the other side of the limiting snap ring is abutted against the second limiting block (210).

5. The pendant shaped as a combination lock according to claim 1, wherein the side wall of the first mandrel (100) defines a plurality of first through holes (130);

and/or the second mandrel (200) is hollow, and a plurality of second through holes (230) are formed in the side wall of the second mandrel (200).

6. The coded lock shaped pendant according to any of claims 1-5, wherein the first stopper (120) is provided with a second exposed surface (121), and the second exposed surface (121) is provided with a number and/or a character mark;

and/or the second limiting block (210) is provided with a third exposed surface (211), and the third exposed surface (211) is provided with a digital and/or character mark.

7. The pendant shaped as a combination lock according to claim 6, wherein the outer contour of the cross section of the segment (300) is polygonal along the axial direction perpendicular to the first mandrel (100);

the outer contour of the cross section of the first limiting block (120) and the second limiting block (210) is polygonal along the axial direction perpendicular to the first mandrel (100);

the projections of the first limiting block (120), the assembling block (300) and the second limiting block (210) on a plane perpendicular to the axial direction of the first mandrel (100) are overlapped.

8. The pendant shaped as a combination lock according to any of claims 1-5, wherein at least one of two opposite sides of the building blocks (300) is provided with a support boss (340) along the axial direction of the first mandrel (100), and the support boss (340) of one building block (300) abuts against another adjacent building block (300).

9. The pendant shaped as a combination lock according to any of claims 1-5, wherein the first stopper (120) is provided with a first ear (122) and/or the second stopper (210) is provided with a second ear (212).

10. A necklace characterized in that it comprises a necklace body (500) and a coded lock shaped pendant as claimed in any one of claims 1 to 9, said necklace body (500) being connected to said coded lock shaped pendant.

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