An extendable cord

Abstract

The utility model relates to a kind of flexible line, including shell assembly and the flexible line module in the shell assembly;Fixed first data line and scalable second data line are equipped on flexible line module, first data line and second data line are electrically connected, first data line and second data line are exposed after passing through shell assembly respectively;First data line is equipped with first perforation and first storage slot on the shell assembly corresponding, and the end of first storage slot close to first perforation is equipped with limit sliding slot, first data line includes first wire body and first terminal, first wire body is slidably sequentially passed through first perforation and limit sliding slot and presents annular, and first terminal is slidably stored in first storage slot;But when first terminal moves, sequentially drive first wire body to slide relative to limit sliding slot to adjust the size of annular.The scheme is by being set into adjustable annular on flexible line module with fixed first data line, satisfies portable, hanging and other multi-purpose carrying needs.

Description

Technical Field

[0001] This utility model relates to the field of retractable data cable technology, and in particular to a retractable cable. Background Technology

[0002] With the widespread use of electronic devices, data cables have become essential accessories for charging and data transfer, making portability and ease of use crucial factors for users. To address the issues of traditional data cables being too long and prone to tangling, various retractable cable products have emerged on the market. These products utilize a cable winding mechanism within the casing, allowing the data cable to be extended or retracted to adjust its length as needed, thus improving the storage experience to some extent.

[0003] However, existing retractable cable products typically include a fixed, non-retractable cable, and there is currently a lack of dedicated carrying or hanging mechanisms for this cable. Users need to put it in their bags when carrying it, it is easy to get tangled with other items, and it requires extra handling when taking it out, making the process cumbersome. Utility Model Content

[0004] To address the technical problem of the inconvenience of carrying existing retractable cables, this utility model provides a retractable cable.

[0005] The present invention provides a retractable cable, comprising a housing assembly and a retractable cable module disposed within the housing assembly. The retractable cable module has a fixed first data cable and a retractable second data cable, which are electrically connected and exposed after passing through the housing assembly. The housing assembly has a first through hole and a first receiving groove corresponding to the first data cable. A limiting groove is provided at one end of the first receiving groove near the first through hole. The first data cable includes a first cable body and a first terminal. The first cable body slidably passes through the first through hole and the limiting groove in sequence to form a ring. The first terminal is movably received within the first receiving groove. When the first terminal moves, it sequentially drives the first cable body to slide relative to the limiting groove to adjust the size of the ring.

[0006] Preferably, the housing assembly includes multiple sides, the first perforation and the limiting groove are located on two adjacent sides, and the first perforation and the limiting groove are spaced apart.

[0007] Preferably, the housing assembly is further provided with a second through hole and a second storage slot, the second through hole connecting the second storage slot and the interior of the housing assembly; the second data cable passes through the second through hole and is movably stored in the second storage slot.

[0008] Preferably, the second data cable includes a second cable body and a second terminal. The inner surface of the housing assembly is provided with a first magnetic attractor corresponding to the second storage groove, and the second terminal is provided with a second magnetic attractor for magnetically engaging with the first magnetic attractor.

[0009] Preferably, the housing assembly includes an annular shell and a first cover and a second cover disposed at both ends of the annular shell, the first cover and the second cover being detachably connected to the annular shell; the first through hole, the second through hole, the first storage groove, the limiting slide groove and the second storage groove are all disposed on the annular shell.

[0010] Preferably, the first cover has a mounting groove corresponding to the first through hole, the mounting groove has a mating block, a portion of the mating block is fitted into the first through hole, the mating block has a wire outlet channel, and the first wire passes through the housing assembly through the wire outlet channel.

[0011] Preferably, the first cover is provided with a support portion and a limiting ring surrounding the support portion, one end face of the telescopic line module cooperates with the support portion, and the circumferential outer surface of the telescopic line module cooperates with the limiting ring.

[0012] Preferably, a first flexible element is provided between the support portion and the telescopic line module, and a second flexible element is provided between the second cover and the telescopic line module.

[0013] Preferably, a portion of the limiting ring extends toward the second cover to form a fixing arm, and the fixing arm fastens the end face of the telescopic line module away from the first cover.

[0014] Preferably, the annular housing is provided with a partition plate, and each end of the partition plate is provided with a telescopic wire module; the partition plate is provided with a through hole, and the two telescopic wire modules are electrically connected through a conductive component, which passes through the through hole into the partition plate.

[0015] Compared with the prior art, the telescopic device provided by this utility model has the following advantages: 1. This utility model provides a retractable cable. By setting a fixed first data cable and a retractable second data cable on the retractable cable module, and having the first data cable pass through a first through hole and a limiting groove on the housing assembly to form a ring, while the first terminal is movably stored in a first storage groove, the retractable cable achieves a stable ring structure with adjustable size, meeting the needs of carrying by hand, hanging, and other purposes, significantly improving portability and preventing the cable from tangling. Specifically, the first through hole serves as the outlet and fixing point of the first data cable, ensuring stable positioning of the cable at the outlet position; the limiting groove limits the running trajectory of the first cable, enabling smooth sliding and controlling the ring formation process; the first storage groove provides a dedicated storage location for the first terminal, preventing wear caused by terminal shaking or scratching of other items; the connectability between the first cable and the first terminal allows the user to drive the cable within the limiting groove by adjusting the position of the terminal, thereby steplessly adjusting the ring size.

[0016] 2. In the telescopic cable provided in this embodiment of the utility model, by arranging the first perforation and the limiting groove on two adjacent sides of the housing and spaced apart from each other, the stability of the ring structure and the durability of the cable are improved simultaneously, and the user's operating feel is improved. Specifically, placing the first perforation and the limiting groove on adjacent sides allows the cable to form a natural 90° turning path when passing through them, which can prevent the ring structure from twisting or derailing. The spaced arrangement of the two ensures that the cable has a sufficient bending radius at the turning point, avoiding fatigue and breakage of the cable core caused by excessive bending. The above layout also reduces the risk of cable sliding friction and jamming, making the adjustment operation smoother and extending the service life.

[0017] 3. In the telescopic cable provided in this embodiment of the utility model, by adding a second through hole and a second storage groove to the housing assembly, an independent cable outlet and storage position are provided for the telescopic second data cable, realizing a layout in which the two cables do not interfere with each other, improving the neatness of storage and the protection of the cable; specifically, the second through hole independently leads out the second data cable, avoiding it from crossing and tangling with the first data cable; the second storage groove provides a dedicated storage space for the second terminal, so that the terminal is stably fixed when not in use.

[0018] 4. In the telescopic cable provided in this embodiment of the utility model, by arranging a first magnetic suction member in the second storage groove of the housing and setting a second magnetic suction member in the second terminal, the second terminal can be quickly fixed by magnetic attraction, improving the convenience and firmness of terminal fixing; specifically, the first magnetic suction member is arranged on the inner surface of the housing to form a fixing base point; the second magnetic suction member is built into the second terminal to achieve magnetic attraction with the first magnetic suction member; the magnetic fixing method replaces the traditional mechanical buckle, which is convenient for users to operate with one hand and avoids the problem of buckle wear; the two work together to make the terminal automatically adsorb and position in the storage position, preventing accidental fall-off.

[0019] 5. In the telescopic cable provided in this embodiment of the utility model, by adopting a modular shell structure consisting of an annular sleeve, a first cover, and a second cover, and by centrally setting all functional slots and holes in the annular sleeve, convenient assembly and maintenance and structural integration are achieved, thereby improving manufacturing and assembly efficiency. Specifically, the annular sleeve serves as the main body to support all functional perforations and storage slots, reducing processing errors of multiple parts. The first cover and the second cover are detachably connected to the sleeve, facilitating the quick installation, maintenance, or replacement of internal modules.

[0020] 6. In the telescopic cable provided in this embodiment of the utility model, by setting an installation groove in the first cover and assembling a mating block that partially extends into the first through hole, and providing a cable outlet channel on the mating block, wear protection for the outlet of the first data cable is achieved, and it is easy to replace and maintain. Specifically, the installation groove is used to fix the mating block and accurately position its relative position to the first through hole; the mating block partially extends into the first through hole to form a smooth cable outlet transition and reduce sharp angle friction; the cable outlet channel provides a dedicated channel for the first data cable, further reducing bending and squeezing damage.

[0021] 7. In the telescopic cable provided in this embodiment of the utility model, by setting a support part and a limiting ring around the support part on the first cover, the telescopic cable module is positioned axially and radially, ensuring the stable installation of the module in the housing; specifically, the support part cooperates with the end face of the telescopic cable module to restrict the axial movement of the module; the limiting ring fits against the outer peripheral surface of the module to prevent it from swaying or rotating radially; the axial and radial limiting cooperation keeps the module in a stable position during operation, ensuring the reliability of the telescopic function and electrical connection.

[0022] 8. In the telescopic cable provided in this embodiment of the utility model, flexible components are provided between the support and the telescopic cable module, and between the second cover and the module, to achieve impact protection and assembly pre-tightening of the internal module, thereby improving the overall durability and stability. Specifically, the first flexible component absorbs the impact force and vibration from the direction of the first cover; the second flexible component absorbs the impact force and vibration from the direction of the second cover; the elastic effect of the flexible component provides continuous pre-tightening force to the module, eliminates assembly gaps, and prevents abnormal noise.

[0023] 9. In the telescopic cable provided in this embodiment of the utility model, by extending a portion of the limiting ring to form a fixed arm and fastening the end face of the telescopic cable module away from the first cover, the axial locking of the module in the housing is further strengthened to prevent loosening during frequent use; specifically, the fixed arm structure is formed by extending the limiting ring and has the function of fastening tightly to the end face of the module; the fastening and fixing gives the module an additional locking force in the axial direction to resist external force pulling in the through direction.

[0024] 10. In the telescopic cable provided in this utility model embodiment, by setting a partition plate inside the annular housing and installing a telescopic cable module at each end, and using a conductive component to electrically connect the two modules through the through hole in the partition plate, a technical solution is creatively realized to integrate two independent telescopic cable systems in a compact housing, upgrading a single cable product into a composite, integrated portable solution with multiple interfaces or functions, greatly improving the functionality and applicability of the product. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This utility model provides an embodiment of an explosion-proof telescopic wire. Figure 1 .

[0027] Figure 2 This utility model provides an embodiment of an explosion-proof telescopic wire. Figure 2 .

[0028] Figure 3 This is a first-view structural schematic diagram of an annular sleeve in a telescopic line provided by an embodiment of this utility model.

[0029] Figure 4 This is a structural schematic diagram from a second perspective of an annular sleeve in a telescopic line provided by an embodiment of this utility model.

[0030] Figure 5 This is a schematic diagram of the structure of the first cover in a telescopic line provided in an embodiment of this utility model.

[0031] Figure 6 This is a schematic diagram of a portion of the structure of a telescopic line provided in an embodiment of this utility model.

[0032] Figure 7 This is an exploded view of a telescopic line module in a telescopic line according to an embodiment of this utility model.

[0033] Figure 8 This is a schematic diagram of the structure of a telescopic line provided in the second embodiment of this utility model.

[0034] Figure 9 This is an exploded view of a telescopic wire section structure provided in the second embodiment of this utility model.

[0035] Figure 10This is a top view of an annular sleeve in a telescopic line provided in the second embodiment of this utility model.

[0036] Explanation of reference numerals in the attached diagram: 100. Retractable cable; 10. Housing assembly; 20. Telescopic line module.

[0037] 1. First cover; 11. Mounting groove; 12. Mating block; 121. Cable outlet channel; 13. Support part; 14. Limiting ring; 15. Fixing arm; 151. Snap-fit ​​boss; 152. Reinforcing rib; 16. First flexible component; 17. First positioning post; 2. Annular sleeve; 21. First through hole; 22. First storage groove; 23. Limiting slide groove; 24. Positioning groove; 25. Second through hole; 26. Second storage groove; 27. First magnetic suction component; 28. Receiving groove; 29. ​​Divider plate; 291. Through hole; 3. Second cover; 31. Second flexible component; 4. First data cable; 41. First cable body; 42. First terminal; 5. Second data cable; 51. Second cable body; 52. Second terminal; 521. Second magnetic suction component; 7. Cable winding assembly; 81. Fixed circuit board; 82. Follower circuit board; 91. Sliding guide rail. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0039] It should be noted that the terms "first" and "second" in the specification and claims of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0040] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0041] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0042] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0043] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0044] Please see Figure 1 The first embodiment of this utility model provides a retractable cord 100, including a housing assembly 10 and a retractable cord module 20 disposed within the housing assembly 10. It should be noted that in the prior art, commercially available retractable cord products typically have the winding structure directly installed inside the housing; that is, components such as the winding assembly 7, the winding reel, and the return spring are dispersed within the housing, requiring each component to be positioned and fixed individually during the assembly stage. In contrast, the retractable cord module 20 of this embodiment is a modular unit that pre-integrates the winding structure, the winding reel, the return mechanism, and related conductive connections into a single unit. This module can be assembled entirely within the housing assembly 10. The retractable cord module 20 can be independently manufactured and tested before leaving the factory, forming a stable integrated functional module, thereby reducing installation difficulty, improving production efficiency, and facilitating reuse between different types of housings.

[0045] Please combine Figure 1 and Figure 2 The telescopic cable module 20 is provided with a fixed first data cable 4 and a telescopic second data cable 5. The first data cable 4 and the second data cable 5 are electrically connected. The first data cable 4 and the second data cable 5 are exposed after passing through the housing assembly 10. The housing assembly 10 is provided with a first through hole 21 and a first storage groove 22 corresponding to the first data cable 4. The first storage groove 22 is provided with a limiting groove 23 at one end near the first through hole 21. The first data cable 4 includes a first wire body 41 and a first terminal 42. The first wire body 41 is slidably passed through the first through hole 21 and the limiting groove 23 in sequence to form a ring. The limiting groove 23 is adapted to the first wire body 41. The first terminal 42 is movably stored in the first storage groove 22. When the first terminal 42 moves, it drives the first wire body 41 to slide relative to the limiting groove 23 in sequence to adjust the size of the ring.

[0046] Understandably, this utility model embodiment provides a telescopic cable 100. By setting a fixed first data cable 4 and a telescopic second data cable 5 on the telescopic cable module 20, and allowing the first data cable 4 to pass through the first through hole 21 on the housing assembly 10 and form a ring with the limiting slide groove 23 in sequence, while the first terminal 42 is movably stored in the first storage groove 22, the telescopic cable 100 is realized to have a stable ring structure with adjustable size, which meets the carrying needs of multiple purposes such as hand-carrying and hanging, significantly improves portability and prevents the cable from tangling. Specifically, the first perforation 21 serves as the outlet and fixing point of the first data cable 4, ensuring stable positioning of the cable at the outlet position; the limiting groove 23 limits the running trajectory of the first cable 41, enabling smooth sliding and controlling the ring formation process; the first storage groove 22 provides a dedicated storage location for the first terminal 42, preventing wear caused by terminal shaking or scratching of other items; the movable cooperation between the first cable 41 and the first terminal 42 allows the user to drive the cable within the limiting groove 23 by adjusting the terminal position, thereby steplessly adjusting the ring size.

[0047] Please continue reading. Figure 2 The housing assembly 10 includes an annular shell 2 and a first cover 1 and a second cover 3 disposed at both ends of the annular shell 2. The first cover 1 and the second cover 3 are detachably connected to the annular shell 2.

[0048] Please combine Figure 3 and Figure 4 In one embodiment, the annular shell 2 has multiple sides, that is, the shell assembly 10 has multiple sides. The first through hole 21 and the limiting slide groove 23 are located on two adjacent sides, and the first through hole 21 and the limiting slide groove 23 are spaced apart.

[0049] Understandably, in the telescopic cable 100 provided in this embodiment of the present invention, by arranging the first through hole 21 and the limiting groove 23 on two adjacent sides of the housing and spaced apart from each other, the stability of the annular structure and the durability of the cable are improved simultaneously, and the user's operating feel is improved. Specifically, placing the first through hole 21 and the limiting groove 23 on adjacent sides allows the cable to form a natural 90° turning path when passing through them, which can prevent the annular structure from twisting or derailing. The spaced arrangement of the two ensures that the cable has a sufficient bending radius at the turning point, avoiding fatigue and breakage of the cable core caused by excessive bending. The above layout also reduces the risk of cable sliding friction and jamming, making the adjustment operation smoother and extending the service life.

[0050] In one embodiment, the annular housing 2 is also provided with a second through hole 25 and a second storage groove 26. The second through hole 25 connects the second storage groove 26 and the interior of the housing assembly 10. The second data cable 5 passes through the second through hole 25 and is movably stored in the second storage groove 26.

[0051] Understandably, in the telescopic cable 100 provided in this embodiment of the present invention, by adding a second through hole 25 and a second storage groove 26 to the housing assembly 10, an independent cable outlet 121 and storage position are provided for the telescopic second data cable 5, realizing a layout in which the two cables do not interfere with each other, improving storage neatness and cable protection; specifically, the second through hole 25 independently leads out the second data cable 5, avoiding it from crossing and tangling with the first data cable 4; the second storage groove 26 provides a dedicated storage space for the second terminal 52, so that the terminal is stably fixed when not in use.

[0052] Specifically, the annular housing 2 has four circumferential sides; the second through hole 25 and the second storage groove 26 are located on the same side; the first through hole 21 and the second through hole 25 are located on two opposite sides. Understandably, the first through hole 21 and the second through hole 25 are located on opposite sides, allowing the first data cable 4 and the second data cable 5 to be led out from different directions of the housing, physically separated in position, avoiding entanglement, crossing, or friction between the two cables when their outlets are too close; the second through hole 25 and the second storage groove 26 are on the same side, meaning that when the user retracts the second data cable 5, the outlet and the terminal storage groove are on the same side, eliminating the need to go around to the other side of the housing, resulting in a short and smooth storage path.

[0053] In one implementation, the first perforation 21, the second perforation 25, the first storage groove 22, the limiting slide groove 23, and the second storage groove 26 are all provided on the annular shell 2. It can be understood that the telescopic cable 100 provided in this embodiment of the present invention, by adopting a modular shell structure of the annular shell 2, the first cover 1, and the second cover 3, and by centrally setting all functional slots and holes on the annular shell 2, achieves convenient assembly and maintenance, structural integration, and improves manufacturing and assembly efficiency. Specifically, the annular shell 2 serves as the main body to support all functional perforations and storage grooves, reducing processing errors of multiple components; the first cover 1 and the second cover 3 are detachably connected to the shell, facilitating quick installation, maintenance, or replacement of internal modules.

[0054] Please combine Figure 2 and Figure 3 The inner surface of the annular housing 2 is provided with a receiving groove 28 corresponding to the second receiving groove 26, and a first magnetic suction member 27 is provided in the receiving groove 28; used to realize the detachable connection of the second data cable 5.

[0055] In one embodiment, the inner surface of the annular sleeve 2 is also provided with a positioning groove 24, which is arranged along the axial direction of the annular sleeve 2 and is used to cooperate with the first cover 1 and the second cover 3 for positioning.

[0056] Please see Figure 5 , Figure 5This is a schematic diagram of the structure of the first cover 1. In one embodiment, the first cover 1 is provided with a support part 13 and a limiting ring 14 arranged around the support part 13. The height of the limiting ring 14 is higher than the height of the support part 13. One end face of the telescopic line module 20 is engaged with the support part 13, and the circumferential outer surface of the telescopic line module 20 is engaged with the limiting ring 14.

[0057] Understandably, in the telescopic cable 100 provided in this embodiment of the present invention, by providing a support part 13 on the first cover 1 and a limiting ring 14 surrounding the support part 13, the telescopic cable module 20 is positioned both axially and radially, ensuring the stable installation of the module within the housing. Specifically, the support part 13 cooperates with the end face of the telescopic cable module 20 to restrict the axial movement of the module; the limiting ring 14 fits against the outer peripheral surface of the module to prevent it from swaying or rotating radially; the axial and radial limiting cooperation ensures that the module maintains a stable position during operation, ensuring the reliability of the telescopic function and electrical connection.

[0058] Please continue reading. Figure 5 In one implementation, a portion of the limiting ring 14 extends toward the second cover 3 to form a fixing arm 15, which fastens the end face of the telescopic wire module 20 away from the first cover 1.

[0059] Understandably, in the telescopic cable 100 provided in this embodiment of the present invention, by extending a portion of the limiting ring 14 to form a fixing arm 15, and fastening the end face of the telescopic cable module 20 away from the first cover 1, the axial locking of the module in the housing is further strengthened, preventing loosening during frequent use; specifically, the fixing arm 15 structure is formed by extending the limiting ring 14 and has the function of fastening tightly to the end face of the module; the fastening and fixing gives the module an additional locking force in the axial direction, resisting the pulling of external forces in the through direction.

[0060] In one embodiment, the top of the fixed arm 15 is provided with a fastening boss 151 for fastening; the side of the fixed arm 15 away from the support part 13 is provided with a reinforcing rib 152.

[0061] Please combine Figure 5 and Figure 6 , Figure 6 The fit between the first cover 1, the annular sleeve 2, and the mating block 12 is shown. In one embodiment, the first cover 1 is provided with a mounting groove 11 corresponding to the first through hole 21, and the mounting groove 11 is provided with a mating block 12. A portion of the mating block 12 is fitted into the first through hole 21. The mating block 12 is provided with a wire outlet channel 121, and the first wire 41 passes through the housing assembly 10 through the wire outlet channel 121.

[0062] Understandably, in the telescopic cable 100 provided in this embodiment of the present invention, by setting an installation groove 11 in the first cover 1 and assembling a mating block 12 that partially extends into the first through hole 21, and providing a cable outlet channel 121 on the mating block 12, wear protection is achieved for the outlet of the first data cable 4, and it is easy to replace and maintain. Specifically, the installation groove 11 is used to fix the mating block 12 and accurately position its relative position to the first through hole 21; the mating block 12 partially extends into the first through hole 21 to form a smooth cable outlet transition and reduce sharp angle friction; the cable outlet channel 121 provides a dedicated channel for the first data cable 4, further reducing bending and squeezing damage.

[0063] In one embodiment, the outer edge of the first cover 1 is also provided with a first positioning post 17, which is used to cooperate with the positioning shell on the annular sleeve 2 to limit the installation orientation between the first cover 1 and the annular sleeve 2.

[0064] Please see Figure 2 In one embodiment, a first flexible member 16 is provided between the support part 13 and the telescopic line module 20, and a second flexible member 31 is provided between the second cover 3 and the telescopic line module 20.

[0065] Understandably, in the telescopic cable 100 provided in this embodiment of the present invention, flexible components are provided between the support part 13 and the telescopic cable module 20, and between the second cover 3 and the module, to achieve impact protection and assembly pre-tightening of the internal module, thereby improving overall durability and stability. Specifically, the first flexible component 16 absorbs the impact force and vibration from the direction of the first cover 1; the second flexible component 31 absorbs the impact force and vibration from the direction of the second cover 3; the elastic effect of the flexible components provides continuous pre-tightening force to the module, eliminates assembly gaps, and prevents abnormal noise.

[0066] Please see Figure 7 , Figure 7 The exploded view of the telescopic cable module 20 shows that, in one embodiment, the second data cable 5 includes a second cable body 51 and a second terminal 52. The second terminal 52 is provided with a second magnetic member 521 for magnetically engaging with the first magnetic member 27.

[0067] Understandably, in the telescopic cable 100 provided in this embodiment of the present invention, by arranging a first magnetic suction member 27 in the second storage groove 26 of the housing and setting a second magnetic suction member 521 in the second terminal 52, the second terminal 52 can be quickly fixed by magnetic attraction, improving the convenience and firmness of terminal fixing; specifically, the first magnetic suction member 27 is arranged on the inner surface of the housing to form a fixing base point; the second magnetic suction member 521 is built into the second terminal 52 to achieve magnetic attraction with the first magnetic suction member 27; the magnetic fixing method replaces the traditional mechanical buckle, which is convenient for users to operate with one hand and avoids the problem of buckle wear; the two work together to make the terminal automatically adsorb and position in the storage position, preventing accidental fall-off.

[0068] Please continue reading. Figure 7 In one embodiment, the telescopic cable module 20 also includes a housing assembly and a cable winding assembly 7, a sliding circuit board assembly, and a locking assembly disposed inside the housing assembly; the sliding circuit board assembly includes a fixed circuit board 81 and a follower circuit board 82 that are slidably connected to each other and electrically connected. The fixed circuit board 81 is disposed on the housing assembly, and the follower circuit board 82 is disposed at one end of the cable winding assembly 7. The second data line 5 is wound on the cable winding assembly 7 and is electrically connected to the follower circuit board 82. The first data line 4 is electrically connected to the fixed circuit board 81. The locking assembly is disposed between the cable winding assembly 7 and the housing assembly to realize the locking of the cable winding assembly 7.

[0069] Understandably, in the telescopic cable 100 provided in this embodiment of the present invention, the telescopic cable module 20 is equipped with a cable winding assembly 7, a sliding circuit board assembly, and a locking assembly to realize the extension and retraction of the second data cable 5, continuous signal transmission, and length positioning. Specifically, the cable winding assembly 7 is responsible for the winding and retraction of the second data cable 5, providing storage space and retrieval power. The sliding circuit board assembly consists of a fixed circuit board 81 and a follower circuit board 82, which maintains continuous electrical connection when the cable winding assembly 7 rotates. The locking assembly cooperates with the cable winding assembly 7 to ensure that the second data cable 5 can stay stably at different extension lengths, preventing retraction or loosening.

[0070] In one implementation, the locking assembly includes a sliding guide rail 91 disposed on the reel.

[0071] It should be noted that the structure of the winding assembly 7, sliding circuit board assembly and locking assembly in the telescopic cable module 20 has many mature design solutions in the existing technology. The improvement of this solution is not specifically aimed at this part of the structure, and will not be elaborated here.

[0072] Please see Figure 8 The second embodiment of this utility model also provides a retractable cable 100; its main difference from the first embodiment is that it is provided with two retractable second data cables 5, one of which has a Type-C port at its output end and the other has a Lightning port at its output end.

[0073] Please refer to further information. Figure 9 In the second embodiment of this utility model, a telescopic cable module 20 is provided for each of the two telescopic second data lines 5; a partition plate 29 is provided inside the annular shell 2 to divide the internal space of the annular shell 2 into two layers for installing two telescopic cable modules 20 respectively.

[0074] Please refer to further information. Figure 10The partition plate 29 is also provided with a through hole 291. The two telescopic line modules 20 are electrically connected through a conductive component 101, which passes through the through hole 291 in the partition plate 29.

[0075] Understandably, by setting a partition plate 29 inside the annular housing 2 and installing a telescopic cable module 20 at each end of it, and using a conductive component 101 to electrically connect the two telescopic cable modules 20 through the through hole 291 on the partition plate 29, two independent telescopic cable systems are integrated into a compact housing, upgrading a single cable product into a composite, integrated portable solution with multiple interfaces or functions, greatly improving the functionality and applicability of the product.

[0076] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable cord, characterized in that: The device includes a housing assembly and a telescopic cable module disposed within the housing assembly. The telescopic cable module has a fixed first data cable and a telescopic second data cable, which are electrically connected and exposed after passing through the housing assembly. The housing assembly has a first through hole and a first storage groove corresponding to the first data cable. The end of the first storage groove near the first through hole has a limiting groove. The first data cable includes a first cable body and a first terminal. The first cable body slidably passes through the first through hole and the limiting groove in sequence to form a ring. The first terminal is movably stored in the first storage groove. When the first terminal moves, it sequentially drives the first cable body to slide relative to the limiting groove to adjust the size of the ring.

2. The telescopic line as described in claim 1, characterized in that: The housing assembly includes multiple sides, with the first perforation and the limiting groove located on two adjacent sides, and the first perforation and the limiting groove are spaced apart.

3. The telescopic line as described in claim 1, characterized in that: The housing assembly is also provided with a second through hole and a second storage slot. The second through hole connects the second storage slot and the interior of the housing assembly. The second data cable can be movably stored in the second storage slot after passing through the second through hole.

4. The telescopic line as described in claim 3, characterized in that: The second data cable includes a second cable body and a second terminal. The inner surface of the housing assembly is provided with a first magnetic attractor corresponding to the second storage groove. The second terminal is provided with a second magnetic attractor for magnetically engaging with the first magnetic attractor.

5. The telescopic line as described in claim 4, characterized in that: The housing assembly includes an annular shell and a first cover and a second cover respectively disposed at both ends of the annular shell. The first cover and the second cover are detachably connected to the annular shell. The first through hole, the second through hole, the first storage groove, the limiting slide groove and the second storage groove are all disposed on the annular shell.

6. The telescopic line as described in claim 5, characterized in that: The first cover has a mounting groove corresponding to the first through hole, and a mating block is provided in the mounting groove. A portion of the mating block is fitted into the first through hole, and a wire outlet channel is provided on the mating block. The first wire passes through the housing assembly through the wire outlet channel.

7. The telescopic line as described in claim 5, characterized in that: The first cover is provided with a support part and a limiting ring arranged around the support part. One end face of the telescopic line module cooperates with the support part, and the circumferential outer surface of the telescopic line module cooperates with the limiting ring.

8. The telescopic line as described in claim 7, characterized in that: A first flexible element is provided between the support part and the telescopic line module, and a second flexible element is provided between the second cover and the telescopic line module.

9. The telescopic line as described in claim 7, characterized in that: A portion of the limiting ring extends toward the second cover to form a fixing arm, which fastens the end face of the telescopic line module away from the first cover.

10. The telescopic line as described in claim 5, characterized in that: The annular casing is provided with a partition plate, and each end of the partition plate is provided with a telescopic wire module; the partition plate is provided with a through hole, and the two telescopic wire modules are electrically connected through a conductive component, which passes through the through hole into the partition plate.

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