Link structure

Abstract

The utility model relates to the technical field of watch chains and watchbands, and discloses a linking structure which comprises at least two chain rings, each chain ring comprises an opening, each opening comprises two opposite groove structures, each groove structure comprises a first inclined surface and a second inclined surface, each first inclined surface is located at one end of the corresponding chain ring, and each second inclined surface is located at the other end of the corresponding chain ring. The second inclined plane is located at the other end of the chain ring, and a preset included angle is formed between the first inclined plane and the second inclined plane; any two adjacent chain rings are connected or disconnected through the two corresponding openings. When the two chain rings need to be connected or disconnected, the openings of the two chain rings are aligned, and the end part of one chain ring is positioned at the groove structure of the other chain ring, so that the two chain rings can be smoothly connected or disconnected, and the disassembly and assembly are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a watch chain, watchband technical field especially links structure. BACKGROUND

[0002] Watches, jewelry and the like are generally worn on the hand by watch chains. There are many kinds of watch chains, such as common metal watch chains. At present, many watch chains all include a plurality of links, when the length of the watch chain needs to be adjusted, the number of links can be increased or decreased to achieve. But the increase or decrease of the link needs to disassemble and assemble the link. However, the inventors found that at present, two adjacent links are inconvenient to disassemble and assemble. SUMMARY

[0003] The utility model provides a link structure to solve the technical problem of inconvenient disassembly and assembly of the watch chain in the prior art.

[0004] In order to solve the above technical problem, the utility model provides a link structure, including at least two links, the link includes an opening, the opening includes two opposite bevel structures, two the bevel structure includes first inclined plane and second inclined plane respectively, the first inclined plane is located one end of the link, the second inclined plane is located the other end of the link, the first inclined plane and the second inclined plane form the preset included angle between them;

[0005] Any two adjacent links are connected or disconnected through two corresponding openings.

[0006] Optionally, the preset included angle is 75°-120°.

[0007] Optionally, the preset included angle is 90°.

[0008] Optionally, the preset gap between the two ends of the link is less than the thickness or diameter of the link, so that the two links form interference when disassembling.

[0009] Optionally, the preset gap is 0-3mm.

[0010] Optionally, a limiting lug is arranged on the link, and the limiting lug is located at the first inclined plane and / or the second inclined plane.

[0011] Optionally, the link is integrally formed.

[0012] Optionally, the link includes a first interface part, a first connecting part, a fixed part, a second connecting part and a second interface part connected in sequence, the opening is formed between the first interface part and the second interface part, the first inclined plane is located at the first interface part, and the second inclined plane is located at the second interface part.

[0013] Optionally, the first interface part, the first connecting part, the fixing part, the second connecting part and the second interface part have equal thicknesses.

[0014] Optionally, the fixing part, the first interface part and the second interface part are parallel to each other, the first connecting part and the second connecting part are parallel to each other, and the fixing part, the first interface part, the second interface part and the first connecting part and the second connecting part are staggered, so that a first step is formed between the fixing part, the first connecting part and the first interface part, a second step is formed between the fixing part, the second connecting part and the second interface part, and a third step is formed between the first connecting part, the fixing part and the second connecting part.

[0015] Compared with the prior art, the link structure can be applied to wearing watches or jewelry. In the link structure, each link ring has an opening, each opening has two groove structures, the two groove structures can be located at opposite sides of the opening respectively, and the two groove structures can be symmetrical or asymmetrical. In addition, each groove structure has a first inclined surface and a second inclined surface. In this way, when two link rings need to be connected or disconnected, the openings of the two link rings are aligned, and the end of one link ring is located at the groove structure of the other link ring, so that the two link rings can be smoothly connected or disconnected, and the disassembly and assembly are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like reference numerals designate similar elements in the figures and wherein the use of "for example", "e.g.", "of the embodiments", "an embodiment", "one embodiment", "some embodiments", "exemplary embodiment", "one exemplary embodiment", "some exemplary embodiments", "an exemplary embodiment", "these specific embodiments", "these specific implementations", "these specific example embodiments" and the like, indicates that various features are included into one or more embodiments. These phrases do not refer to the same embodiments or example embodiments.

[0017] Fig. 1 Fig. 1 is a structural schematic view of a link structure in an embodiment of the present application;

[0018] Fig. 2 Fig. 2 is another structural schematic view of the link structure in the embodiment of the present application;

[0019] Fig. 3 Fig. 3 is a structural schematic view of a link ring in the embodiment of the present application. DETAILED DESCRIPTION

[0020] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer" and similar expressions used in the specification are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used in the specification are the same as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0022] In addition, the terms first, second, third and the like in the specification and claims are only used for the purpose of distinguishing between similar technical features described in the description and are not intended to indicate or imply relative importance or imply a specified number of indicated technical features. They do not necessarily describe the order or chronological sequence. The terms are interchangeable under appropriate circumstances. Therefore, features defined as "first", "second" can explicitly or implicitly include at least one of the features.

[0023] Similarly, the terms "fixed" and "connected" are also used in the specification and claims, and should not be understood as limited to direct connection. Therefore, the expression "device A is connected to device B" should not be limited to device A being directly connected to device B in the device or system, which means that device A and device B have a path between them, which can be a path including other devices or tools.

[0024] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0025] Please refer to Figs. 1-3 The embodiment of the present application proposes a link structure 100, comprising at least two chain rings 10, the chain ring 10 comprises an opening 11, the opening 11 comprises two opposite groove structures 112, two groove structures 112 respectively comprises a first inclined surface 1122 and a second inclined surface 1124, the first inclined surface 1122 is located at one end of the chain ring 10, the second inclined surface 1124 is located at the other end of the chain ring 10, the first inclined surface 1122 and the second inclined surface 1124 form a preset included angle A; any two adjacent chain rings 10 are connected or disconnected through two corresponding openings 11.

[0026] The link structure 100 of the embodiment can be applied to a watch or jewelry. In the link structure 100 of the embodiment, each link 10 has an opening 11, and each opening 11 has two bevel structures 112, which can be located at opposite sides of the opening 11 respectively, and can be symmetrical or asymmetrical. In addition, each bevel structure 112 has a first inclined surface 1122 and a second inclined surface 1124. In this way, when two links 10 need to be connected or disconnected, the openings 11 of the two links 10 are aligned, and the end of one link 10 is located at the bevel structure 112 of the other link 10, so that the two links 10 can be smoothly connected or disconnected, and the assembly and disassembly are convenient. The link 10 can be made of metal or plastic.

[0027] In an embodiment, the preset included angle A is 75°-120°, and the preset included angle A is 90° in an embodiment. When the preset included angle A is 90°, the bevel structure 112 of one link 10 can just accommodate the end of the other link 10, so that the two adjacent links 10 can be smoothly connected or disconnected.

[0028] In an embodiment, a preset gap 12 is formed between the two ends of the link 10. By setting the preset gap 12, the two adjacent links 10 can be smoothly connected or disconnected, and when the two links 10 are connected, the stability of the connection will not be affected, and accidental disconnection can be avoided.

[0029] In an embodiment, the preset gap 12 is smaller than the thickness or diameter of the link 10, so that the two links 10 form an interference fit when disassembled. The two adjacent links 10 can be smoothly connected or disconnected, and when the two links 10 are connected, the stability of the connection will not be affected, and accidental disconnection of the two adjacent links 10 can be prevented. Fig. 2 As shown, the openings 11 of the two adjacent links 10 are thicker in the middle and thinner on both sides. When disassembled, the middle interference fit will have a slight interference friction force of not more than 1 kg, and the two sides will not interfere with the passing. Preferably, the preset gap 12 is 0-3 mm.

[0030] In an embodiment, a limiting protrusion is provided on the link 10, and the limiting protrusion is located at the first inclined surface 1122 and / or the second inclined surface 1124. The two adjacent links 10 can be further smoothly connected or disconnected, and when the two links 10 are connected, the stability of the connection will not be affected, and accidental disconnection can be avoided.

[0031] In an embodiment, the link 10 is integrally formed, and the connection strength of the link 10 is high.

[0032] In an embodiment, the chain link 10 comprises a first interface portion 13, a first connecting portion 14, a fixed portion 15, a second connecting portion 16 and a second interface portion 17 connected in sequence, the opening 11 is formed between the first interface portion 13 and the second interface portion 17, the first inclined surface 1122 is located at the first interface portion 13, and the second inclined surface 1124 is located at the second interface portion 17, so that the chain link 10 has good connecting strength and is convenient to disassemble and assemble.

[0033] In an embodiment, the thicknesses of the first interface portion 13, the first connecting portion 14, the fixed portion 15, the second connecting portion 16 and the second interface portion 17 are equal, so that the overall strength of the chain link 10 is high.

[0034] In an embodiment, the fixed portion 15, the first interface portion 13 and the second interface portion 17 are parallel to each other, the first connecting portion 14 and the second connecting portion 16 are parallel to each other, and the fixed portion 15, the first interface portion 13, the second interface portion 17 and the first connecting portion 14 and the second connecting portion 16 are staggered, so that a first step 142 is formed between the fixed portion 15, the first connecting portion 14 and the first interface portion 13, a second step 162 is formed between the fixed portion 15, the second connecting portion 16 and the second interface portion 17, and a third step 152 is formed between the first connecting portion 14, the fixed portion 15 and the second connecting portion 16, so that the chain link 10 is convenient to unfold and fold and the like through the first step 142, the second step 162 and the third step 152.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in detail for the sake of simplicity; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in each of the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of each embodiment of the present application.

Claims

1. A link structure, characterized in that, It includes at least two links, each link having an opening, the opening having two opposing bevel structures, each bevel structure having a first inclined surface and a second inclined surface, the first inclined surface being located at one end of the link, the second inclined surface being located at the other end of the link, and a predetermined angle being formed between the first inclined surface and the second inclined surface; Any two adjacent links are connected or disconnected through two corresponding openings.

2. The link structure according to claim 1, characterized in that, The preset included angle is 75° to 120°.

3. The link structure according to claim 2, characterized in that, The preset included angle is 90°.

4. The link structure according to claim 1, characterized in that, A preset gap is formed between the two ends of the chain link, and the preset gap is smaller than the thickness or diameter of the chain link, so that interference is formed when the two chain links are assembled or disassembled.

5. The link structure according to claim 4, characterized in that, The preset gap is 0 to 3 mm.

6. The link structure according to claim 1, characterized in that, The chain link is provided with a limiting protrusion, which is located at the first inclined surface and / or the second inclined surface.

7. The link structure according to claim 1, characterized in that, The chain link is integrally formed.

8. The link structure according to claim 1, characterized in that, The chain link includes a first interface portion, a first connecting portion, a fixing portion, a second connecting portion, and a second interface portion connected in sequence. The opening is formed between the first interface portion and the second interface portion. The first inclined surface is located at the first interface portion, and the second inclined surface is located at the second interface portion.

9. The link structure according to claim 8, characterized in that, The thicknesses of the first interface portion, the first connecting portion, the fixing portion, the second connecting portion, and the second interface portion are equal.

10. The link structure according to claim 8, characterized in that, The fixing part, the first interface part, and the second interface part are parallel to each other, the first connecting part and the second connecting part are parallel to each other, and the fixing part, the first interface part, the second interface part and the first connecting part and the second connecting part are staggered, so that a first step is formed between the fixing part, the first connecting part and the first interface part, a second step is formed between the fixing part, the second connecting part and the second interface part, and a third step is formed between the first connecting part, the fixing part and the second connecting part.

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