wire

Abstract

The application discloses a wire, comprising a wire body and a connecting port, the wire body comprises a first surface and a second surface arranged oppositely, and the first surface and the second surface can be connected in a detachable manner; the wire body comprises a first wire segment, a first winding part, a second winding part and a second wire segment connected in sequence; when the wire is stored, the wire is wound into two coils through a magnetic attraction mechanism or the like, a single coil is closely connected, and the diameter is small, so that the radial size of the wire after storage of a single coil is reduced, and the radial area of a single layer of coils is further reduced through the stacking of the two coils, so that the overall volume of the wire after storage is smaller. After the wire is stored, the detachable connection of the first surface and the second surface can provide stable restraint force, so that two adjacent layers of wires are fixed, thereby reducing the probability of loosening of the wire after storage in a shaking environment. During the process of storing the wire, the first surface and the second surface are automatically connected after being attached together, so that the storage of the wire can be quickly completed, and the operation is simple and convenient.

Description

Technical Field

[0001] This application relates to the field of wires, and in particular to a type of wire. Background Technology

[0002] With the increasing prevalence and use of electronic devices, it is frequently necessary to transfer data between different devices or charge them, which requires the use of data cables. Data cables typically consist of a connector (or connector port), an insulating sheath (usually made of materials such as rubber), and conductors. For ease of use, existing data cables are generally quite long; however, in daily use, data cables are easily damaged by pulling, dragging, and bending, leading to cracks in the insulating sheath or even breakage of the cable itself. Utility Model Content

[0003] The purpose of this application is to provide a cable that is easy to store and has a small size and is not loose after storage.

[0004] To solve the above-mentioned technical problems, or at least partially solve them, this application provides the following technical solutions: Embodiments of this application provide a wire, comprising a wire body and connection ports disposed at both ends of the wire body. The wire body includes a first surface and a second surface disposed opposite to each other, and the first surface and the second surface are detachable. Along the length direction of the wire body, the wire body includes a first segment, a first winding portion, a second winding portion, and a second segment connected in sequence. The wire includes a wound state and an unwound state. In the wound state, the first segment is wound around the first winding portion to form a first coil. In the first coil, the first surface and the second surface of two adjacent first segments are detachable. The second segment is wound around the second winding portion to form a second coil. In the second coil, the first surface and the second surface of two adjacent second segments are detachable. The first coil and the second coil are stacked. In the unwound state, at least a portion of the first segment is pulled out and unwound from the first coil, and / or at least a portion of the second segment is pulled out and unwound from the second coil.

[0005] In some embodiments, a first magnetic element is provided on the first surface, and a second magnetic element is provided on the second surface that can be magnetically attracted to the first magnetic element.

[0006] In some embodiments, a first limiting structure is provided on the first surface, and a second limiting structure is provided on the second surface. The first limiting structure and the second limiting structure cooperate to restrict the relative movement between the first surface and the second surface.

[0007] In some embodiments, the first limiting structure is a first friction surface, and the second limiting structure is a second friction surface.

[0008] In some embodiments, one of the first limiting structure and the second limiting structure is a groove and the other is a protrusion.

[0009] In some embodiments, the cross-sectional shape of the line body is arc-shaped in the width direction of the line body.

[0010] In some embodiments, a hook surface is provided on the first surface, and a rough surface is provided on the second surface that can be bonded to the hook surface.

[0011] In some embodiments, the first winding portion includes a first winding member and a first wire portion, the first wire portion being a component of the first line segment, and in the winding state, the first line segment is stacked and wound around the first winding member as the winding center; the second winding portion includes a second winding member and a second wire portion, the second wire portion being a component of the second line segment, and in the winding state, the second line segment is stacked and wound around the second winding member as the winding center.

[0012] In some embodiments, the first winding member includes a first winding ring, a first rolling element, and a first winding shaft, wherein the first winding ring is sleeved on the first winding shaft, and the first rolling element is disposed between the first winding ring and the first winding shaft; the second winding member includes a second winding ring, a second rolling element, and a second winding shaft, wherein the second winding ring is sleeved on the second winding shaft, and the second rolling element is disposed between the second winding ring and the second winding shaft.

[0013] In some embodiments, the first winding member further includes two first limiting plates, which are symmetrically disposed on both sides of the first winding coil and connected to the first winding coil. The two first limiting plates and the first winding coil form a first winding groove, and in the winding state, the first coil is located in the first winding groove. The second winding member further includes two second limiting plates, which are symmetrically disposed on both sides of the second winding coil and connected to the second winding coil. The two second limiting plates and the second winding coil form a second winding groove, and in the winding state, the second coil is located in the second winding groove.

[0014] Compared with existing technologies, the above technical solution has the following advantages: After the cable is stored, the detachable connection between the first and second sides provides a stable constraint, fixing the two adjacent cable layers. This reduces the probability of the stored cable becoming loose in a shaking environment, thereby reducing the likelihood of the cable getting tangled with other items (such as keys or earphones) and solving the tangling problem at its source.

[0015] During the cable storage process, there is no need for manual and laborious winding or binding. Simply wind the cable gently along the winding path, and the first and second sides will automatically connect after they are put together. This allows for quick cable storage, making the operation simple and convenient and improving the comfort of using the product.

[0016] When storing the wire, the wire is wound into two coils with small diameters, which reduces the radial dimension of the stored wire. By stacking the two coils, the axial volume of the stored wire is compressed, making the overall volume of the stored wire smaller and reducing the storage space required to store the stored wire, thus facilitating coil storage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the wire in an unfolded state according to a first embodiment of some embodiments of this application; Figure 2 for Figure 1 A schematic diagram of the wire in a wound state; Figure 3 A schematic diagram of the structure of a second embodiment of the wire in a wound state provided in some embodiments of this application; Figure 4 for Figure 3 A structural schematic diagram of the wire shown from another perspective; Figure 5 A schematic diagram of the structure of a third embodiment of the wire in a wound state provided in some embodiments of this application; Figure 6 for Figure 5 A structural schematic diagram of the wire shown from another perspective; Figure 7 for Figure 6 Enlarged structural diagram of section A in the middle; Figure 8 This is a schematic diagram of the fourth embodiment of the wire provided in this application, in a wound state.

[0019] The attached figures are labeled as follows: 10. Main body of the line; 11. First line segment; 12. First winding section; 13. Second winding section; 14. Second line segment; 15. First surface; 16. Second surface; 20. Connect to the port; 31. First coil; 32. Second coil; 40. First winding component; 41. First winding coil; 42. First rolling element; 43. First winding shaft; 50. Second winding component; 51. Second winding coil; 52. Second rolling element; 53. Second winding shaft; 60. Limiting plate; 61. Winding groove. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0021] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification and the foregoing description of this application are intended to cover non-exclusive inclusion. The term "embodiment" as used in this application means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0022] The specific term "exemplary" used in this application means "serving as an example, embodiment, or illustration." Any embodiment illustrated as "exemplary" is not necessarily to be construed as superior or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0023] In the description of this application, the technical terms "first," "second," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0024] In the description of this application, the technical term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0025] In the description of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In the description of this application, "multiple" means two or more (including two), unless otherwise expressly and specifically defined.

[0027] In the description of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, and other dimensions of various components in the embodiments of this application shown in the drawings, as well as the overall thickness, length, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0028] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings. The technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figures 1 to 8 As shown, the cable provided in this application includes a cable body 10 and connection ports 20 disposed at both ends of the cable body 10. Specifically, the cable is a data cable, power cable, or signal cable, and the connection ports can be USB interfaces, TYPE-C interfaces, MICRO-USB interfaces, or Lightning interfaces, etc.

[0030] The main body 10 includes a first surface 15 and a second surface 16 disposed opposite to each other, and the first surface 15 and the second surface 16 can be detached and connected. The main body 10 is flat.

[0031] Along the length of the main body 10, the main body 10 includes a first line segment 11, a first winding portion 12, a second winding portion 13, and a second line segment 14 connected in sequence. The winding portion (including the first winding portion 12 and the second winding portion 13) is the "core bearing area" of the wire's "layered winding". Each layer of wire generates radial pressure on the winding portion when winding (the pressure accumulates with the number of layers in multi-layer winding), and the tension during winding and unwinding generates axial tension on the winding portion. If the winding portion itself is not strong enough, it is prone to damage. In one embodiment of this application, reinforcing members are provided at the first winding portion 12 and the second winding portion 13 to increase the mechanical strength of the first winding portion 12 and the second winding portion 13. Reinforcing components (usually made of high-strength materials such as metal rings, glass fiber reinforced plastic sheets, and rigid rubber sleeves) enhance rigidity by being "embedded inside the winding section" or "wrapped around the outside." The high-strength materials enhance the rigidity and compressive strength of the winding section, disperse radial pressure, and improve the bending strength of the winding section to resist deformation caused by axial tensile force.

[0032] The wire includes both wound and unwound states.

[0033] like Figures 2 to 8 As shown, in the winding state: The first line segment 11 is wound around the first winding portion 12 to form a first coil 31. In the first coil 31, the first surface 15 and the second surface 16 of two adjacent first line segments 11 can be disconnected.

[0034] The second line segment 14 is wound around the second winding portion 13 to form a second coil 32. In the second coil 32, the first surface 15 and the second surface 16 of two adjacent second line segments 14 can be disconnected.

[0035] The winding directions of the first segment 11 and the second segment 14 can be the same or opposite. Those skilled in the art can choose the winding directions of the first segment 11 and the second segment 14 as needed.

[0036] The first coil 31 and the second coil 32 are stacked.

[0037] like Figure 1 As shown, in the expanded state: At least a portion of the first line segment 11 is drawn out and unfolded from the first coil 31, and / or at least a portion of the second line segment 14 is drawn out and unfolded from the second coil 32.

[0038] The cable provided in this application allows the first side 15 and the second side 16 to detach after being stored, providing a stable binding force to fix the two adjacent cable layers. This reduces the probability of the stored cable becoming loose in a shaking environment, thereby reducing the probability of the cable getting tangled with other items (such as keys or earphones) and solving the tangling problem at its root.

[0039] During the cable storage process, there is no need for manual and laborious winding or binding. Simply use magnetic attraction or other mechanisms to automatically wind the cable along the winding path. Once the first side 15 and the second side 16 are attached together, they will automatically connect, which can quickly complete the cable storage. The operation is simple and convenient, thereby improving the comfort of using the product.

[0040] When storing, the wire is wound into two coils, and the stacking of the two coils makes the stored wire take on the shape of a "stacked disc" or a "flat cylinder". Because the diameter of the two coils is small, the radial dimension of the stored wire is reduced. At the same time, the stacked coils compress the axial volume of the stored wire, further reducing the radial area of ​​a single coil and reducing the storage space required to place the stored wire. This makes it easy to store the coil, compresses the volume to the extreme, and is suitable for portable storage.

[0041] like Figure 3 and Figure 4 As shown, in one embodiment of this application, the first winding portion 12 includes a first winding member 40 and a first line portion. The first line portion is a component of the first line segment 11. In the winding state, the first line segment 11 is stacked and wound around the first winding member 40 as the winding center.

[0042] The second winding section 13 includes a second winding member 50 and a second wire portion. The second wire portion is a component of the second wire segment 14. In the winding state, the second wire segment 14 is stacked and wound around the second winding member 50 as the winding center. The first winding member 40 and the second winding member 50 have the same structure.

[0043] The axis of the winding component (including the first winding portion 12 and the second winding portion 13) is the central axis of the winding. When the wire is wound along the axis, it can naturally form a concentric circular coil centered on the axis, ensuring that the radius and spacing of each turn of wire are uniform. In addition, the rigidity of the winding shaft can resist the radial tension when the wire is wound. When the wire is wound, a certain tension needs to be applied to make the coil compact. The winding shaft can withstand this tension and maintain its shape, avoiding the center from collapsing due to tension fluctuations (when winding without a shaft, the center is easily "flattened" due to tension concentration, resulting in a loose coil).

[0044] like Figures 5 to 7 As shown, in one embodiment of this application, the first winding member 40 includes a first winding ring 41, a first rolling element 42 and a first winding shaft 43. The first winding ring 41 is sleeved on the first winding shaft 43, and the first rolling element 42 is disposed between the first winding ring 41 and the first winding shaft 43.

[0045] The second winding member 50 includes a second winding coil 51, a second rolling element 52, and a second winding shaft 53. The second winding coil 51 is sleeved on the second winding shaft 53, and the second rolling element 52 is disposed between the second winding coil 51 and the second winding shaft 53. In a specific embodiment of this application, the first winding member 40 and the second winding member 50 may be a single component.

[0046] The winding coil (including the first winding coil 41 and the second winding coil 51), the rolling elements (including the first rolling element 42 and the second rolling element 52), and the winding shaft (including the first winding shaft 43 and the second winding shaft 53) constitute a bearing-like structure (i.e., the winding component has a bearing-like structure). The winding coil and the winding shaft are strictly kept coaxial through the rolling elements. When releasing the wire, the winding coil always rotates around the central axis of the winding shaft. The wire is evenly released from the same circumferential surface of the winding coil and will not shift left or right or cross-wrap due to the shaking of the shaft.

[0047] When it is necessary to unwind the coiled wire, the user only needs to hold the winding spool with one hand and gently pull one end of the wire with the other hand. The winding ring will automatically rotate and release the wire with the pull force, without the need to hold the spool with both hands or press the braking structure, which greatly improves the convenience of operation.

[0048] In one embodiment of this application, the first winding member further includes two first limiting plates, which are symmetrically disposed on both sides of the first winding ring and connected to the first winding ring. The two first limiting plates and the first winding ring form a first winding groove. In the winding state, the first coil is located in the first winding groove.

[0049] The second winding also includes two second limiting plates, which are symmetrically arranged on both sides of the second winding and connected to the second winding. The two second limiting plates and the second winding form a second winding groove. In the winding state, the second coil is located in the second winding groove.

[0050] Two limiting plates are perpendicular to the surface of the winding coil, forming a winding groove that is "closed on the left and right and concave in the middle". The wire can only move laterally in the groove. During winding, the wire is always restricted in the groove and will not slip out of the winding coil due to centrifugal force during rotation or slight shaking of the hand.

[0051] When users manually reel in the wire, they only need to coil the wire along the winding groove. The limiting plate will automatically guide the wire to fit the winding ring. There is no need to deliberately align it. Even if the winding speed is fast, the wire can be evenly distributed along the groove, achieving "neat winding at will".

[0052] When the wire is tightly wound in the winding groove, it will generate radial pressure on the winding coil (especially when multiple layers are wound, the pressure increases with the number of layers). The double limiting plate can act as a "reinforcing rib" to enhance the winding coil's resistance to deformation and can withstand greater winding pressure without deformation.

[0053] like Figure 8 As shown, in one embodiment of this application, the first winding member and the second winding member are a single component. The winding member includes a winding coil (including a first winding coil and a second winding coil) (not shown in the figure), a rolling element (including a first rolling element and a second rolling element) (not shown in the figure), a winding shaft (including a first winding shaft and a second winding shaft), and two limiting plates 60 (including a first limiting plate and a second limiting plate). The winding coil is sleeved on the winding shaft, and the rolling element is disposed between the winding coil and the winding shaft. The two limiting plates 60 are symmetrically disposed on both sides of the winding coil and connected to the winding coil. The two limiting plates 60 and the winding coil form a winding groove 61. In the winding state, the coil (including a first coil 31 and a second coil 32) is located within the winding groove 61.

[0054] The following describes several implementation methods for connecting the first and second sides.

[0055] Example 1 A first magnetic element is provided on the first surface, and a second magnetic element is provided on the second surface, which can be magnetically attracted to the first magnetic element. Specifically, at least one of the first and second magnetic elements is a magnetic material, and the other is a component that can be attracted by the magnetic material (such as a magnetic material and an iron part). The first magnetic element can be continuously arranged to wrap around the wire (the number of first magnetic elements is one), or multiple first magnetic elements can be spaced apart along the wire. The second magnetic element can be continuously arranged to wrap around the wire (the number of second magnetic elements is one), or multiple second magnetic elements can be spaced apart along the wire.

[0056] The first magnetic component and the second magnetic component constitute a magnetic attraction structure. The magnetic attraction structure uses the magnetic force between the first magnetic component and the second magnetic component to attract and connect the first surface and the second surface, thereby fixing the wire between adjacent wire layers of the coil. The magnetic attraction structure can provide a continuous and uniform adhesion force for adjacent wire layers of the coil, ensuring that the storage state is stable for a long time and automatically attracting and winding, avoiding slippage or loosening between layers due to slight shaking or vibration (such as the wire "unwinding" from the winding coil when carrying it daily).

[0057] The magnetic structure boasts an extremely simple operating logic. When winding the wire, simply bring the first and second sides of different wire layers close together, and the first and second magnetic components will automatically "find their positions" and adhere to each other through the magnetic field, making it easy to complete without deliberate alignment. Disassembly requires only a slight pull to separate, without any jamming or resistance, avoiding the common problems of "jamming" and "damage caused by excessive force" in mechanical structures. This seamless operation of "fixing upon proximity and separating with a gentle pull" significantly improves the efficiency of winding and storage.

[0058] In one embodiment of this application, a first limiting structure is provided on the first surface and a second limiting structure is provided on the second surface. The first limiting structure and the second limiting structure cooperate to restrict the relative movement between the first surface and the second surface.

[0059] The cooperation between the first and second limiting structures locks lateral / longitudinal translation, adding "mechanical resistance" to the magnetic attraction between the first and second surfaces. This further prevents accidental separation and avoids slippage between adjacent coil layers caused by external forces such as vibration or pulling (e.g., when the coil is being carried, it may gradually shift and loosen without translational constraints). Furthermore, while the magnetic attraction between the first and second surfaces may slightly decrease over time (due to a decrease in the magnetic force of the magnetic components), the limiting structures can still maintain basic stability through shape constraints, extending the overall structure's lifespan.

[0060] In one embodiment of this application, the first limiting structure is a first friction surface, and the second limiting structure is a second friction surface.

[0061] The friction between the first and second friction surfaces achieves a flexible and stable constraint. If there is a slight misalignment between adjacent coil layers, the position can be adjusted by gently pushing and sliding along the friction surface without complete separation and realignment. During unfolding, it can slide slowly with the force applied to adapt to different angles. When subjected to external force or vibration, the friction of the friction surface has a stabilizing effect, preventing the rigid limit from suddenly "unlocking" and causing violent sliding after the force exceeds the limit (for example, when the winding coil is impacted, the friction surface can slowly buffer the interlayer displacement to prevent the wire from scattering).

[0062] In one embodiment of this application, one of the first limiting structure and the second limiting structure is a groove and the other is a protrusion.

[0063] When the first limiting structure and the second limiting structure use a protrusion and a groove to cooperate, the inner wall of the groove can form a circumferential wrap around the protrusion (such as a rectangular groove locking a rectangular protrusion, or a circular groove wrapping a cylindrical protrusion), forming a "physical fit". That is, the protrusion and the groove achieve precise and stable "physical locking" through rigid geometric constraints, which can provide stronger resistance to displacement and ensure that the structure does not loosen when subjected to force.

[0064] In one embodiment of this application, the cross-sectional shape of the line body is arc-shaped in the width direction. The width direction is perpendicular to the length direction.

[0065] The main body of the coil with an arc-shaped cross-section presents an arc shape in the width direction, "high in the middle and low on both sides" (such as a semi-circular cross-section). When winding, the sides of adjacent coil layers will fit together along the arc surface. When the coil is subjected to axial force (such as shaking when carrying or slight pulling when storing) and attempts to slide along its axis, the arc-shaped sides of the adjacent coils will form a "slope-like contact". The force in the sliding direction will be decomposed by the arc surface into a constraint force perpendicular to the axis (similar to the supporting resistance when an object slides along a slope), preventing the adjacent coil layers from "deviating" along the coil axis.

[0066] When a wire with an arc cross-section is wound, the contact surface between adjacent coils is a "curved surface contact" extending along the arc, with a longer contact length in the axial direction. Friction is positively correlated with the contact area; a longer axial contact length means a greater total friction force, which can more effectively resist the tendency of axial sliding.

[0067] Example 2 The first surface has a hook-shaped part, and the second surface has a rough surface part that can be bonded to the hook-shaped part. The hook-shaped parts can be arranged continuously (there is only one hook-shaped part) or multiple hook-shaped parts can be arranged alternately. The rough surface parts can be arranged continuously (there is only one rough surface part) or multiple rough surface parts can be arranged alternately.

[0068] The hook-and-loop components (parts with small hooks) and the loop-and-loop components (parts with soft, looped fibers) form a structure similar to Velcro, achieving "surface contact fixation" through large-area fiber hooking during connection. This structure allows for uniform adhesion between adjacent coil layers, covering most of the interlayer contact area, ensuring even and seamless coil fixation and stable winding. It is particularly suitable for light storage needs that require "loose fixation but not easy unraveling."

[0069] The connection logic of hook and loop fasteners is extremely simple. Just bring the hook side of the layers close to the loop side and press lightly, and the fibers will naturally hook and fix together. To separate them, simply tear gently along the edge of the bonded area; there is no need to align them at a specific angle or apply extra force. This "no precise alignment required" characteristic means that even if the layers are slightly misaligned during winding, the large contact area of ​​the hook and loop fasteners can still achieve an effective connection, perfectly matching the "quick winding, easy fixing" usage habit of coils.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wire, characterized by The cable includes a main body and connection ports disposed at both ends of the main body. The main body includes a first side and a second side disposed opposite to each other, and the first side and the second side can be detached from each other. Along the length direction of the main body of the wire, the main body of the wire includes a first wire segment, a first winding portion, a second winding portion, and a second wire segment connected in sequence; The wire includes a wound state and an unwound state; In the winding state, the first line segment is stacked and wound around the first winding portion to form a first coil. In the first coil, the first and second faces of two adjacent first line segments can be detached and connected. The second line segment is stacked and wound around the second winding portion to form a second coil. In the second coil, the first and second faces of two adjacent second line segments can be detached and connected. The first coil and the second coil are stacked. In the unfolded state, at least a portion of the first line segment is pulled out and unfolded from the first coil, and / or at least a portion of the second line segment is pulled out and unfolded from the second coil.

2. The wire according to claim 1, characterized in that, A first magnetic element is provided on the first surface, and a second magnetic element is provided on the second surface that can be magnetically attracted to the first magnetic element.

3. The wire according to claim 2, characterized in that, A first limiting structure is provided on the first surface, and a second limiting structure is provided on the second surface. The first limiting structure and the second limiting structure cooperate to restrict the relative movement between the first surface and the second surface.

4. The wire according to claim 3, characterized in that, The first limiting structure is a first friction surface, and the second limiting structure is a second friction surface.

5. The wire according to claim 3, characterized in that, One of the first limiting structure and the second limiting structure is a groove, and the other is a protrusion.

6. The wire according to claim 2, characterized in that, In the width direction of the line body, the cross-sectional shape of the line body is arc-shaped.

7. The wire according to claim 1, characterized in that, The first surface is provided with a hook surface, and the second surface is provided with a rough surface that can be bonded to the hook surface.

8. The wire according to any one of claims 1 to 7, characterized in that, The first winding portion includes a first winding member and a first line portion. The first line portion is a component of the first line segment. In the winding state, the first line segment is stacked and wound around the first winding member as the winding center. The second winding portion includes a second winding member and a second line portion. The second line portion is a component of the second line segment. In the winding state, the second line segment is stacked and wound around the second winding member as the winding center.

9. The wire according to claim 8, characterized in that, The first winding component includes a first winding ring, a first rolling element, and a first winding shaft. The first winding ring is sleeved on the first winding shaft, and the first rolling element is disposed between the first winding ring and the first winding shaft. The second winding element includes a second winding ring, a second rolling element, and a second winding shaft. The second winding ring is sleeved on the second winding shaft, and the second rolling element is disposed between the second winding ring and the second winding shaft.

10. The wire according to claim 9, characterized in that, The first winding component also includes two first limiting plates, which are symmetrically arranged on both sides of the first winding ring and connected to the first winding ring. The two first limiting plates and the first winding ring form a first winding groove. In the winding state, the first coil is located in the first winding groove. The second winding component also includes two second limiting plates, which are symmetrically arranged on both sides of the second winding coil and connected to the second winding coil. The two second limiting plates and the second winding coil form a second winding groove. In the winding state, the second coil is located in the second winding groove.

Images