A movable connection unit and a stretchable and bendable movable structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU DIMAI ZHICHUANG TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-19
Smart Images

Figure CN224369212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connection structures, specifically to a movable connection unit and a retractable and flexible movable structure. Background Technology
[0002] Bracelets, necklaces, and pendant chains often feature connecting units. While there are many different connecting unit structures on the market, and most offer good flexibility, they often lack design flair. Connecting unit structures that meet diverse design requirements mostly require manual assembly of the components, which is not only time-consuming and labor-intensive, but also prone to issues like poor fit and stability due to manual assembly. Furthermore, there are limitations in the application of different materials. Therefore, this type of connecting unit has certain drawbacks. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide an active connecting unit that can save production time and improve the fit and firmness of the connecting unit.
[0004] The second objective of this utility model is to provide a retractable and flexible movable structure, which adopts the aforementioned movable connecting unit.
[0005] One of the objectives of this utility model is achieved through the following technical solution:
[0006] An active connecting unit includes a first connecting component and a second connecting component formed together by 3D printing; the first connecting component includes a plurality of first connecting rings; the plurality of first connecting rings of the first connecting component are connected end to end in sequence, and the arrangement trajectory of the plurality of first connecting rings of the first connecting component is a closed loop; the second connecting component includes a plurality of second connecting rings; the plurality of second connecting rings of the second connecting component are connected end to end in sequence, and the arrangement trajectory of the plurality of second connecting rings of the second connecting component is a closed loop; any first connecting ring is sleeved on two adjacent second connecting rings; any second connecting ring is sleeved on two adjacent first connecting rings.
[0007] There is a movable gap between the first connecting ring and the second connecting ring that are nested together.
[0008] From the end of the first connecting ring to the middle of the first connecting ring, the first connecting ring gradually becomes concave towards the center of the first connecting member.
[0009] The portion where any two adjacent first connecting rings are connected is formed as a first outward protrusion, and the first connecting member has six first outward protrusions.
[0010] From the end of the second connecting ring to the middle of the second connecting ring, the second connecting ring gradually becomes concave towards the center of the second connecting member.
[0011] The portion where any two adjacent second connecting rings are connected is formed as a second outward protrusion, and the second connecting member has six second outward protrusions.
[0012] The first connecting member and the second connecting member are made of gold, silver, copper, stainless steel, titanium, resin or nylon.
[0013] The first connecting ring of the first connecting member is offset from the second connecting ring of the second connecting member by 30-40°.
[0014] The second objective of this utility model is achieved by the following technical solution:
[0015] The retractable and flexible movable structure includes a plurality of the aforementioned movable connecting units connected in sequence.
[0016] An active gap is provided between any two connected movable connection units.
[0017] Compared with existing technologies, the advantages of this utility model are as follows: it adopts a first connecting component and a second connecting component formed together by 3D printing. The first connecting component is composed of several first connecting rings connected end-to-end, and the second connecting component is composed of several second connecting rings connected end-to-end. Furthermore, any first connecting ring is fitted onto two adjacent second connecting rings, and any second connecting ring is fitted onto two adjacent first connecting rings. This saves production time and improves the fit and strength of the connecting unit. Moreover, the fitted first and second connecting rings have a movable gap, which improves the mobility of the connecting unit. In addition, the first and second connecting components are integrally formed by 3D printing, eliminating the need for assembly and welding joints, and allowing for flexible customized production of the movable functions. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the movable connection unit of this utility model;
[0019] Figure 2 This is a top view of the movable connecting unit of this utility model;
[0020] Figure 3 This is a perspective view of the movable connecting unit of this utility model;
[0021] Figure 4 This is a schematic diagram of the retractable and bendable movable structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the extended and bendable movable structure of this utility model in its extended state.
[0023] Figure 6 This is a schematic diagram of the bending state of the retractable and flexible movable structure of this utility model;
[0024] Wherein, 10 is the first connecting member; 11 is the first connecting ring; 13 is the first outward protrusion; 20 is the second connecting member; 21 is the second connecting ring; and 23 is the second outward protrusion. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0026] like Figure 1-3 As shown, an active connecting unit includes a first connecting member 10 and a second connecting member 20 formed together by 3D printing. The first connecting member 10 includes a plurality of first connecting rings 11. The plurality of first connecting rings 11 of the first connecting member 10 are connected end to end in sequence, and the arrangement trajectory of the plurality of first connecting rings 11 of the first connecting member 10 is a closed loop. The second connecting member 20 includes a plurality of second connecting rings 21. The plurality of second connecting rings 21 of the second connecting member 20 are connected end to end in sequence, and the arrangement trajectory of the plurality of second connecting rings 21 of the second connecting member 20 is a closed loop. Any first connecting ring 11 is sleeved on two adjacent second connecting rings 21. Any second connecting ring 21 is sleeved on two adjacent first connecting rings 11.
[0027] This invention employs a first connecting member 10 and a second connecting member 20. The first connecting member 10 is constructed using a series of first connecting rings 11 connected end-to-end, and the second connecting member 20 is constructed using a series of second connecting rings 21 connected end-to-end. Each first connecting ring 11 is fitted onto two adjacent second connecting rings 21, and each second connecting ring 21 is fitted onto two adjacent first connecting rings 11. This improves structural strength and enhances robustness. Furthermore, the first connecting member 10 and the second connecting member 20 are 3D printed together, eliminating the need for manual assembly. This facilitates production, saves time, increases efficiency, and improves the fit of the connecting units. The absence of manual assembly and weld joints allows for flexible, customized production of the movable functions.
[0028] Preferably, there is a movable gap between the first connecting ring 11 and the second connecting ring 21 that are fitted together. By having a movable gap C1 between the first connecting ring 11 and the second connecting ring 21 that are fitted together, the mobility of the connecting unit can be improved.
[0029] Preferably, the movable gap is 0.15 mm or more, so as to further improve the movable performance of the connecting unit.
[0030] From the end of the first connecting ring 11 to the middle of the first connecting ring 11, the first connecting ring 11 gradually concaves toward the center of the first connecting member 10, so as to facilitate the cooperation between the first connecting member 10 and the second connecting member 20 while ensuring the activity effect.
[0031] The shape of the first connecting ring 11 can be set to a circle, ellipse, polygon, etc., as required.
[0032] In this embodiment, the portion where any two adjacent first connecting rings 11 are connected is formed as a first outward protrusion 13, and the first connecting member 10 has six first outward protrusions 13. The first connecting member 10 is a hollow member composed of six first connecting rings 11 (which can be of different shapes) (the number of rings can be varied according to style requirements).
[0033] Of course, the number of first connecting rings 11 of the first connecting member 10 is not limited to 6, but can be set according to actual needs, such as 8, 10, etc.
[0034] From the end of the second connecting ring 21 to the middle of the second connecting ring 21, the second connecting ring 21 gradually concaves toward the center of the second connecting member 20, so as to facilitate the cooperation of the first connecting member 10 and the second connecting member 20 while ensuring the activity effect.
[0035] The shape of the second connecting ring 21 can be set to a circle, ellipse, polygon, etc., as required.
[0036] The portion where any two adjacent second connecting rings 21 connect is formed as a second outward protrusion 23, and the second connecting member 20 has six second outward protrusions 23. The second connecting member 20 has six second outward protrusions 23. The second connecting member 20 is a hollow member composed of six second connecting rings 21 (which can be of different shapes) (the number of rings can be varied according to style requirements).
[0037] Of course, the number of second connecting rings 21 of the second connecting member 20 is not limited to 6, but can be set according to actual needs, such as 8, 10, etc.
[0038] The first connecting member 10 and the second connecting member 20 are made of materials such as gold, silver, copper, stainless steel, titanium, resin or nylon that can achieve the above-mentioned locking capabilities, thereby expanding the range of materials that can be used.
[0039] Preferably, the first connecting ring 11 of the first connecting member 10 is offset from the second connecting ring 21 of the second connecting member 20 by 30-40°.
[0040] like Figure 4-6 As shown, this utility model also discloses a retractable and bendable movable structure, comprising multiple movable connecting units connected in sequence as described above. A movable gap C2 is provided between any two connected movable connecting units, allowing for a degree of movement between any two adjacent movable connecting units. Because a pre-reserved movable gap is provided between any two connected movable connecting units, the movable structure, after being integrally formed using 3D printing technology, can be stretched in length and bent at will (for wearing effect), or can be manufactured using different technologies to create a precisely movable, robust product without weld joints.
[0041] In actual design, the two ends of the active structure can be appropriately adjusted for aesthetic purposes to enhance interactivity when using the product.
[0042] The length of the movable structure and the number of movable connecting units used can be set according to actual needs. The movable structure can be adjusted to achieve different stretching lengths and different bending effects as needed.
[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An active connection unit, characterized in that: The device includes a first connecting component and a second connecting component formed together by 3D printing. The first connecting component includes a plurality of first connecting rings. The plurality of first connecting rings of the first connecting component are connected end to end in sequence, and the arrangement trajectory of the plurality of first connecting rings of the first connecting component forms a closed loop. The second connecting component includes a plurality of second connecting rings. The plurality of second connecting rings of the second connecting component are connected end to end in sequence, and the arrangement trajectory of the plurality of second connecting rings of the second connecting component forms a closed loop. Any first connecting ring is sleeved on two adjacent second connecting rings. Any second connecting ring is sleeved on two adjacent first connecting rings.
2. The active connection unit as described in claim 1, characterized in that: There is a movable gap between the first connecting ring and the second connecting ring that are nested together.
3. The active connection unit as described in claim 1, characterized in that: From the end of the first connecting ring to the middle of the first connecting ring, the first connecting ring gradually becomes concave towards the center of the first connecting member.
4. The active connection unit as described in claim 1 or 3, characterized in that: The portion where any two adjacent first connecting rings are connected is formed as a first outward protrusion, and the first connecting member has six first outward protrusions.
5. The active connection unit as described in claim 1, characterized in that: From the end of the second connecting ring to the middle of the second connecting ring, the second connecting ring gradually becomes concave towards the center of the second connecting member.
6. The active connection unit as described in claim 1 or 5, characterized in that: The portion where any two adjacent second connecting rings are connected is formed as a second outward protrusion, and the second connecting member has six second outward protrusions.
7. The active connection unit as described in claim 1, characterized in that: The first connecting member and the second connecting member are made of gold, silver, copper, stainless steel, titanium, resin or nylon.
8. The active connection unit as described in claim 1, characterized in that: The first connecting ring of the first connecting member is offset from the second connecting ring of the second connecting member by 30-40°.
9. A retractable and bendable movable structure, characterized in that: It includes a plurality of active connecting units as described in any one of claims 1-8, connected in sequence.
10. The retractable and flexible movable structure as described in claim 9, characterized in that: An active gap is provided between any two connected movable connection units.