Optical fiber bundling and winding device and intelligent garden indoor and outdoor interconnected optical cable

Abstract

The application discloses a kind of optical fiber bundling yarn winding device and intelligent calculation garden indoor and outdoor interconnection optical cable, it is related to optical cable technical field, its technical scheme main point is:optical fiber bundling yarn winding device includes rack, multiple drive shafts, drive assembly, multiple yarn storage drums and multiple yarn guide positioning rings, multiple drive shafts are interval arranged along the circumferential direction, drive assembly drives each drive shaft synchronous rotation, yarn storage drum is fixed on rack, yarn disc rotates in yarn storage drum, annular accommodating space and annular wire gap are formed between yarn disc and the inner wall of yarn storage drum, yarn guide positioning ring is arranged between annular wire gap and yarn guide die.The optical fiber bundling yarn winding device of the application has the advantages of compact structure, high working efficiency and good stability, and the optical cable of the application is formed by twisting the optical fiber unit module into a cable core, the inner sheath and the outer sheath are made of different materials, and have indoor flame retardant and outdoor weather resistance, realizing indoor and outdoor use.

Description

Technical Field

[0001] This invention relates to the field of optical cable technology, and more specifically, to an optical fiber bundling and winding device and an indoor and outdoor interconnection optical cable for a smart computing park. Background Technology

[0002] With the rapid development of artificial intelligence, big data, cloud computing, and intelligent computing centers, the volume of data interaction within intelligent computing parks is growing exponentially, placing extremely high demands on the bandwidth, capacity, density, and deployment flexibility of optical transmission networks. Traditional outdoor optical cables typically have 144-288 cores, with a few reaching 576 cores, which is insufficient for high-density interconnection scenarios with over 1000 cores. This necessitates the parallel laying of multiple cables, resulting in significant pipeline resource consumption, complex construction, and high costs. In terms of product structure, indoor optical cables prioritize flexibility and flame retardancy, while outdoor optical cables emphasize weather resistance, pressure resistance, and waterproofing. Traditional optical cables are difficult to use universally both indoors and outdoors, requiring frequent switching at indoor and outdoor junctions for cross-scenario deployment, increasing link loss and potential failure points. Furthermore, traditional optical cables primarily employ oil-filled, armored, and polyethylene sheathed structures, which fail to meet the application requirements of intelligent computing centers in terms of cable size, environmental friendliness, and flame retardancy.

[0003] In the manufacturing process of high-core-count optical cables, different colored yarns need to be wound around the optical fiber bundles to distinguish different fiber bundles for subsequent construction identification. In the prior art, Chinese patent CN116101849A discloses a micro-tension yarn winding device for optical fiber bundling. The key technical points of this device are: it includes an assembly support, a yarn bundle shaft, a yarn bundle shaft drive component, a yarn pot, and a yarn pot drive component. A yarn bundle is mounted on the yarn bundle shaft, and the yarn pot wraps around the yarn bundle. Both the yarn bundle and the yarn pot rotate synchronously with the yarn bundle shaft. After the yarn is drawn out from the yarn bundle, it passes through the yarn passage hole on the yarn pot or is directly attached to the surface of the stranding mold before being wound onto the optical fiber bundle. This device achieves yarn winding of a single optical fiber bundle through the cooperation of the yarn bundle and the yarn pot.

[0004] The aforementioned yarn winding device can only process one fiber bundle at a time. When multiple fiber bundles need to be wound with yarn of different colors, the device must be used sequentially for each bundle or multiple devices must be used in parallel. This not only results in low production efficiency but also in a large footprint and high equipment cost. Furthermore, both the yarn ball and the yarn pot in this device are rotating components. The yarn ball and the yarn pot rotate together, resulting in a large overall moment of inertia and vibration during rotation, leading to unstable yarn output. In addition, the yarn ball is directly fixed to the yarn ball shaft, meaning the entire weight of the yarn ball and its yarn, as well as the centrifugal force, are borne by the yarn ball shaft. This high load further exacerbates the vibration problem and affects winding accuracy. Moreover, the yarn pot and the yarn ball in this device only have a large radial spacing, with the yarn pot merely acting as a protective cover. The space between the inner wall of the yarn pot and the yarn ball is not effectively utilized, resulting in low overall space utilization. Furthermore, to achieve this spacing, the yarn pot requires a large radial dimension, which is detrimental to the miniaturization of the equipment.

[0005] Therefore, a new solution is needed to address the above problems. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide an optical fiber bundling and winding device and an indoor and outdoor interconnection optical cable for intelligent computing parks to solve the above problems.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: an optical fiber bundling and winding device, comprising:

[0008] frame;

[0009] Multiple drive shafts are spaced apart on the frame along the circumferential direction. Each drive shaft has a through hole that extends along its axial direction. Each drive shaft is provided with a yarn guide mold, and the yarn guide mold has a yarn guide hole that communicates with the through hole.

[0010] A drive assembly is mounted on the frame and is connected to each of the drive shafts for driving each of the drive shafts to rotate synchronously.

[0011] Multiple yarn storage cylinders are respectively arranged outside each of the drive shafts and detachably connected to the frame. A yarn reel is rotatably connected inside each yarn storage cylinder. The yarn reel is connected to the drive shaft through a quick-release transmission structure so that the drive shaft drives the yarn reel to rotate inside the yarn storage cylinder. An annular receiving space is formed between the yarn reel and the inner peripheral wall of the yarn storage cylinder. The annular receiving space is connected to an annular yarn outlet gap.

[0012] Multiple yarn guide positioning rings are respectively set between each of the annular yarn outlet gaps and the yarn guide mold, and are detachably connected to the yarn storage cylinder. After the yarn is led out from the annular yarn outlet gap, it enters the yarn guide hole through the yarn guide positioning ring.

[0013] Preferably, the frame includes a connecting plate and a plurality of connecting parts detachably connected to the connecting plate, each drive shaft is rotatably connected to a corresponding connecting part, and each yarn storage cylinder is detachably connected to a corresponding connecting part.

[0014] Preferably, the drive assembly includes a drive motor fixed to the connecting disk and a gear ring rotatably connected to the connecting disk. The output shaft of the drive motor is provided with a drive gear that meshes with the gear ring, and each drive shaft is provided with a driven gear that meshes with the gear ring.

[0015] Preferably, the yarn storage cylinder includes a cylinder body and a mounting plate. The cylinder body is a cylindrical component that is hollow inside and open at both ends. One end of the cylinder body is detachably connected to the connecting part through a connector. The mounting plate is rotatably connected to the end of the cylinder body near the connector through a bearing. A limit groove is provided at the end of the mounting plate away from the connector. A locking component is provided on the mounting plate.

[0016] The yarn reel includes two reel bodies and a winding shaft connected between the two reel bodies. One of the reel bodies is fixed in the limiting groove by the locking assembly, and the other reel body forms the annular yarn outlet gap with the inner wall of the cylinder. The two reel bodies, the winding shaft and the inner wall of the cylinder form the annular receiving space.

[0017] The winding shaft has an inner hole, the drive shaft passes through the mounting plate and extends into the inner hole, and the drive shaft and the winding shaft are connected by the quick-release transmission structure.

[0018] Preferably, the quick-release transmission structure includes an external spline disposed on the drive shaft and an internal spline disposed in the inner hole of the winding shaft, wherein the internal spline is adapted to the external spline.

[0019] Preferably, an operating space is formed between the connecting part, the connecting member and the end of the yarn storage cylinder, and the locking assembly includes a locking block, a locking bolt fixed on the locking block and a nut cooperating with the locking bolt. The locking block is located on one side of the limiting groove, the locking bolt passes through the mounting plate and extends into the operating space, and the nut is located in the operating space.

[0020] Preferably, a pressure ring is detachably connected to the inner wall of the cylinder, the inner diameter of the pressure ring being smaller than the outer diameter of the other disc, so that the yarn is radially compressed by the pressure ring when it is led out from the annular yarn outlet gap.

[0021] Preferably, the yarn guide positioning ring is a rigid ring, and the rigid ring is detachably connected to the yarn storage cylinder via a connecting rod.

[0022] Preferably, the yarn guide positioning ring is an annular airbag, the outer ring of which is fixed to the inner ring of a fixed ring. The fixed ring is detachably connected to the yarn storage cylinder via a connecting rod. The annular airbag is connected to an air pressure control unit. By adjusting the air pressure inside the annular airbag, the inner ring of the annular airbag expands towards the center or returns to the fixed ring, thereby adjusting the tension of the yarn.

[0023] An indoor-outdoor interconnection optical cable for a smart computing park includes an optical fiber bundle made by any of the optical fiber bundling and winding devices described above. Multiple optical fiber bundles are twisted together and then extruded with an inner sheath to form an optical fiber unit module. Multiple optical fiber unit modules are twisted around a central reinforcing core in a single-layer or multi-layer concentric ring manner to form a cable core. The yarn colors of each optical fiber bundle within the same optical fiber unit module constitute a unique module color identification sequence. The optical cable also includes a water-blocking layer covering the outside of the cable core and an outer sheath extruded outside the water-blocking layer. The water-blocking layer includes a water-blocking tape longitudinally wrapped around the outside of the cable core and water-blocking yarn filling the space between the cable core and the water-blocking tape. The inner sheath is a halogen-free flame-retardant polyolefin sheath, and the outer sheath is a thermoplastic polyurethane elastomer sheath. Multiple FRP reinforcing members are symmetrically embedded in the outer sheath along the circumferential direction.

[0024] Compared with existing technologies, the advantages of the optical fiber bundling and winding device and the indoor and outdoor interconnection optical cable for intelligent computing parks disclosed in this invention are:

[0025] 1. This invention uses multiple drive shafts spaced apart along the circumference, all driven by a single drive assembly to rotate synchronously. Each drive shaft corresponds to a yarn storage cylinder and a yarn reel, allowing for the simultaneous winding of different colored yarns onto multiple fiber bundles. Differentiated winding of all fiber bundles can be completed in a single winding operation, eliminating the need for sequential winding or parallel operation of multiple devices. This results in production efficiency several times higher than existing single-bundle winding devices, while also offering a smaller footprint and lower cost.

[0026] 2. This invention fixes the yarn storage cylinder to the frame, and the yarn reel rotates inside the cylinder. The weight of the yarn reel and the yarn on it, as well as the centrifugal force of rotation, are borne by the yarn storage cylinder. The drive shaft only serves a driving function and does not bear radial load, resulting in smooth operation and stable yarn output. Simultaneously, an annular receiving space is formed between the yarn reel and the inner circumferential wall of the yarn storage cylinder to store and confine the yarn, preventing it from loosening. This annular receiving space is connected to an annular exit gap, providing a stable exit channel for the yarn. Through the cooperation of the annular receiving space and the annular exit gap, there is no need for additional structures to prevent yarn loosening. One structure simultaneously achieves both yarn storage and limiting functions, as well as an exit channel, resulting in high space utilization and a compact structure.

[0027] 3. The optical cable core of this invention is composed of multiple optical fiber unit modules twisted together in a single-layer or multi-layer concentric ring around a central reinforcing core, achieving ultra-large core count coverage through modular stacking. The yarn colors of each fiber bundle within the same optical fiber unit module constitute a unique module color identification sequence. During construction, the target module can be quickly located and individually extracted based on the color identification, enabling plug-and-play functionality with pre-fabricated terminal connectors, significantly improving construction efficiency. The inner sheath uses a halogen-free flame-retardant polyolefin sheath, meeting the flame-retardant requirements for indoor scenarios; the outer sheath uses a thermoplastic polyurethane elastomer sheath, meeting the weather resistance and pressure resistance requirements for outdoor scenarios. The inner and outer sheaths use different materials, functionally allocated for indoor and outdoor scenarios respectively, allowing a single optical cable to possess both indoor flame-retardant and outdoor weather-resistant properties, achieving universal applicability. The water-blocking layer consists of longitudinally wrapped water-blocking tape and filled water-blocking yarn, achieving full water blocking in both longitudinal and radial directions. FRP reinforcements are symmetrically embedded along the circumferential direction within the outer sheath, improving the tensile and compressive mechanical properties of the optical cable. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the optical fiber bundling and winding device according to an embodiment of this application. Figure 1 ;

[0030] Figure 2 This is a partial cross-sectional view of the optical fiber bundling and winding device according to an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the structure of the optical fiber bundling and winding device according to an embodiment of this application. Figure 2 ;

[0032] Figure 4 This is a schematic diagram showing the connection between the yarn storage cylinder and the connecting part in an embodiment of this application;

[0033] Figure 5 This is a schematic diagram of the installation of the yarn reel according to an embodiment of this application;

[0034] Figure 6 for Figure 5 Enlarged view of part A in the image;

[0035] Figure 7 This is a schematic diagram of the dovetail groove on the yarn storage tube according to an embodiment of this application;

[0036] Figure 8This is a schematic diagram of the structure of the indoor and outdoor interconnection optical cable for the intelligent computing park according to an embodiment of this application;

[0037] Figure 9 This is a schematic diagram of the structure of the fiber optic unit module according to an embodiment of this application.

[0038] The numbers or letters in the attached diagram represent the names of the corresponding components:

[0039] 1. Frame; 1a. Connecting part; 1b. Connecting plate; 2. Drive shaft; 21. Through hole; 22. External spline; 3. Yarn guide mold; 31. Yarn guide hole; 4. Drive assembly; 41. Drive motor; 42. Gear ring; 43. Driven gear; 44. Drive gear; 5. Annular receiving space; 6. Annular yarn exit gap; 7. Yarn guide positioning ring; 8. Pressure ring; 9. Yarn storage cylinder; 91. Cylinder body; 911. Dovetail groove; 92. 10. Mounting plate; 11. Connector; 12. Yarn reel; 13. Reel body; 14. Winding shaft; 15. Yarn; 16. Fiber bundle; 17. Fiber unit module; 18. Central reinforcing core; 19. Water-blocking layer; 10. Outer sheath; 19. FRP reinforcing component; 10. Inner sheath; 19. Locking assembly; 10. Locking block; 19. Locking bolt; 19. Nut; 19. Locating pin; 19. Locating groove. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described through specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1 , Figure 2 and Figure 3This embodiment provides an optical fiber bundling and winding device, including a frame 1, multiple drive shafts 2, a drive assembly 4, multiple yarn storage cylinders 9, and multiple yarn guiding and positioning rings 7. The multiple drive shafts 2 are spaced apart on the frame 1 along the circumferential direction. Each drive shaft 2 has a through-hole 21 extending along its axial direction, and each drive shaft 2 is provided with a yarn guiding mold 3, which has a yarn guiding hole 31 communicating with the through-hole 21. The drive assembly 4 is disposed on the frame 1 and is drive-connected to each drive shaft 2, used to drive each drive shaft 2 to rotate synchronously. Multiple yarn storage cylinders 9 are correspondingly disposed outside each drive shaft 2 and detachably connected to the frame 1. A yarn reel 10 is rotatably connected inside each yarn storage cylinder 9. The yarn reel 10 is drive-connected to the drive shaft 2 through a quick-release transmission structure, so that the drive shaft 2 drives the yarn reel 10 to rotate inside the yarn storage cylinder 9. An annular receiving space 5 is formed between the yarn reel 10 and the inner circumferential wall of the yarn storage cylinder 9, and the annular receiving space 5 is connected to an annular yarn outlet gap 6. Multiple yarn guide positioning rings 7 are arranged one-to-one between each annular yarn outlet gap 6 and yarn guide mold 3, and are detachably connected to yarn storage cylinder 9. After the yarn 11 is led out from the annular yarn outlet gap 6, it enters the yarn guide hole 31 through the yarn guide positioning ring 7.

[0042] When the aforementioned yarn winding device is in operation, multiple fiber optic bundles 12 are led out from the external pay-off frame and pass through the yarn guide holes 31 of each yarn guide mold 3 and the bundle passage holes 21 of the drive shaft 2. Each yarn reel 10 is loaded with yarn 11 of different colors. The yarn 11 is led out from the yarn reel 10, passes through the annular receiving space 5 and the annular exit gap 6, enters the yarn guide positioning ring 7, and is then guided by the yarn guide positioning ring 7 into the yarn guide hole 31, where it is wound onto the corresponding fiber optic bundle 12. The drive assembly 4 drives each drive shaft 2 to rotate synchronously. Each drive shaft 2 drives the corresponding yarn reel 10 to rotate within the yarn storage cylinder 9 through a quick-release transmission structure, actively releasing the yarn 11 and winding it onto the fiber optic bundle 12. In one winding operation, multiple fiber optic bundles 12 are simultaneously wound with yarn 11 of different colors.

[0043] In the above method, multiple drive shafts 2 are spaced apart along the circumference and are synchronously driven by a drive assembly 4 to rotate. Each drive shaft 2 corresponds to a yarn storage cylinder 9 and a yarn reel 10, which can simultaneously wind different colored yarns 11 onto multiple fiber bundles 12. Differentiated winding of all fiber bundles 12 can be completed in one pass, eliminating the need for sequential winding of each bundle or parallel operation of multiple devices. The production efficiency is several times that of existing single-bundle winding devices. Simultaneously, the yarn storage cylinder 9 is fixed to the frame 1, and the yarn reel 10 rotates within it. The weight and centrifugal force of the yarn reel 10 and the yarn 11 on it are borne by the yarn storage cylinder 9. The drive shafts 2 only serve a driving function and do not bear radial loads, resulting in smooth operation and stable yarn output. The yarn reel 10 and the inner circumferential wall of the yarn storage cylinder 9 form an annular receiving space 5 and an annular yarn output gap 6. One structure simultaneously realizes the functions of yarn storage and limiting, and yarn output channel, resulting in high space utilization, a compact structure, and no need for additional structures to prevent yarn loosening.

[0044] In this embodiment, the frame 1 includes a connecting plate 1b and multiple connecting parts 1a. The connecting parts 1a are detachably connected to the connecting plate 1b by bolts. Each drive shaft 2 is rotatably connected to the corresponding connecting part 1a by a bearing, and each yarn storage cylinder 9 is detachably connected to the corresponding connecting part 1a. Specifically, the connecting part 1a has a threaded hole, and the connecting plate 1b has a corresponding connecting hole. The bolt passes through the connecting hole on the connecting plate 1b and is screwed into the threaded hole on the connecting part 1a to fix the connecting part 1a to the connecting plate 1b. The connecting part 1a also has a shaft hole for the drive shaft 2 to pass through, and the drive shaft 2 is installed in the shaft hole by a bearing. One end of the cylinder body 91 of the yarn storage cylinder 9 is directly fixed to the outer wall of the connecting part 1a by a connector 93 and bolts. The connecting plate 1b serves as the mounting base, supporting the drive assembly 4 and each connecting part 1a. The connecting part 1a serves as an intermediate connector, simultaneously supporting the drive shaft 2 and the yarn storage cylinder 9, facilitating overall disassembly and maintenance.

[0045] In this embodiment, the drive assembly 4 includes a drive motor 41 fixed to the connecting disk 1b and a gear ring 42 rotatably connected to the connecting disk 1b. A drive gear 44 meshes with the gear ring 42 on the output shaft of the drive motor 41, and a driven gear 43 meshes with the gear ring 42 on each drive shaft 2. When the drive motor 41 drives the drive gear 44 to rotate, the drive gear 44 drives the gear ring 42 to rotate, and the meshing of the gear ring 42 with each driven gear 43 drives each drive shaft 2 to rotate synchronously. In another optional embodiment, the drive assembly 4 includes a drive motor 41 fixed to the connecting disk 1b, a drive pulley, multiple shaft pulleys, and a belt. The drive pulley is connected to the drive motor 41, and each shaft pulley is correspondingly mounted on each drive shaft 2. The belt passes sequentially around the drive pulley and each shaft pulley. When the drive motor 41 drives the drive pulley to rotate, the belt drives each shaft pulley and each drive shaft 2 to rotate synchronously.

[0046] Please see Figure 4 , Figure 5 and Figure 6In this embodiment, the yarn storage cylinder 9 includes a cylinder body 91 and a mounting plate 92. The cylinder body 91 is a cylindrical component with a hollow interior and open ends. One end of the cylinder body 91 is detachably connected to the connecting part 1a via a connector 93. The mounting plate 92 is rotatably connected to the end of the cylinder body 91 near the connector 93 via a bearing. A limiting groove is formed at the end of the mounting plate 92 away from the connector 93. A locking assembly 19 is provided on the mounting plate 92. The yarn reel 10 includes two reels 101 and a winding shaft 102 connected between the two reels 101. One reel 101 is fixed in the limiting groove via the locking assembly 19. The other reel 101 forms the aforementioned annular yarn exit gap 6 with the inner wall of the cylinder body 91. The two reels 101, the winding shaft 102, and the inner wall of the cylinder body 91 form the aforementioned annular receiving space 5. The winding shaft 102 has an inner hole, and the drive shaft 2 passes through the mounting plate 92 and extends into the inner hole. The drive shaft 2 and the winding shaft 102 are connected by a quick-release transmission structure. The mounting plate 92 is rotatably connected to the bobbin 91 via bearings, and the yarn reel 10 is fixed to the mounting plate 92 by a locking assembly 19. When the drive shaft 2 drives the winding shaft 102 to rotate via the quick-release transmission structure, the entire yarn reel 10, together with the mounting plate 92, rotates inside the bobbin 91, while the bobbin 91 itself remains stationary. By fixing the bobbin 91, only the yarn reel 10 and the mounting plate 92 rotate inside the bobbin 91. The rotating parts have a smaller mass, lower moment of inertia, faster start-stop response, and smoother operation at high speeds. At the same time, the weight of the yarn reel 10 and the yarn 11 on it is borne by the bobbin 91, and the drive shaft 2 is only responsible for transmitting torque, resulting in less vibration and stable yarn output.

[0047] In this embodiment, the quick-release transmission structure includes an external spline 22 disposed on the drive shaft 2 and an internal spline disposed in the inner hole of the winding shaft 102, the internal spline being adapted to the external spline 22. After the drive shaft 2 extends into the inner hole of the winding shaft 102, the external spline 22 and the internal spline automatically engage, and the drive shaft 2 can drive the winding shaft 102 and the entire yarn reel 10 to rotate. When replacing the yarn reel 10, first loosen the locking assembly 19 so that the locking block 191 disengages from the disc body 101 in the limiting groove, and then pull the yarn reel 10 axially from the drive shaft 2 to separate the internal spline from the external spline 22, so that the yarn reel 10 can be removed from the open end of the cylinder 91. The operation is simple and quick, effectively shortening the downtime required to replace the yarn reel 10.

[0048] In this embodiment, an operating space is formed between the connecting part 1a, the connecting member 93, and the end of the yarn storage cylinder 9. The locking assembly 19 includes a locking block 191, a locking bolt 192 fixed on the locking block 191, a nut 193 cooperating with the locking bolt 192, a positioning pin 194 fixed on the locking block 191, and a positioning groove 195 provided on the mounting plate 92. The locking block 191 is located on one side of the limiting groove, the locking bolt 192 passes through the mounting plate 92 and extends into the operating space, and the nut 193 is located in the operating space. When installing the yarn reel 10, one of the reels 101 is pushed into the limiting groove. At this time, the locking block 191 rotates to one side to make room. After the reel 101 is in place, the locking bolt 192 is rotated from the operating space, causing the locking block 191 to rotate back to its original position, so that the locking block 191 is aligned with the reel 101. During rotation, the locking bolt 192 can be slightly pulled outward to determine whether the locking block 191 has rotated into place by sensing whether the positioning pin 194 has fallen into the positioning groove 195. When the positioning pin 194 falls into the positioning groove 195, the locking block 191 is locked in the circumferential direction, and tightening the nut 193 completes the locking. Because the positioning pin 194 restricts the circumferential rotation of the locking block 191 after it is engaged in the positioning groove 195, the locking bolt 192 will not rotate when the nut 193 is tightened, making it easier for the operator to tighten the nut 193 with one hand, and making the locking operation more convenient and reliable.

[0049] Please see Figure 7 In this embodiment, a pressure ring 8 is detachably connected to the inner wall of the cylinder 91. Specifically, a dovetail groove 911 is provided on the inner wall of the cylinder 91, and a dovetail-shaped locking part adapted to the dovetail groove 911 is fixed on the outer circumferential surface of the pressure ring 8. When installing the pressure ring 8, the pressure ring 8 is pushed in along the axial direction of the cylinder 91, so that the dovetail-shaped locking part slides into the dovetail groove 911, thereby completing the circumferential and radial positioning of the pressure ring 8. A set screw hole is provided on the cylinder 91 at the position corresponding to the dovetail groove 911, and a set screw is installed in the set screw hole. After the pressure ring 8 is pushed in place, the set screw is tightened, and the end of the set screw abuts against the dovetail-shaped locking part of the pressure ring 8, thereby locking and fixing the pressure ring 8 axially. The inner diameter of the pressure ring 8 is smaller than the outer diameter of the other disc 101, so that the yarn 11 is radially compressed by the pressure ring 8 when it is led out from the annular yarn outlet gap 6. The pressure ring 8 is located at the outlet of the annular yarn exit gap 6. After the yarn 11 is led out from the annular yarn exit gap 6, it first passes through the inner ring of the pressure ring 8 and is radially pressed by the pressure ring 8 from all sides towards the center to obtain basic tension force, making the yarn exit more stable, and then enters the yarn guide positioning ring 7.

[0050] In this embodiment, the yarn guide positioning ring 7 is a rigid ring, specifically made of stainless steel, with a smooth inner wall. Specifically, the rigid ring is detachably connected to the yarn storage cylinder 9 via a connecting rod. The end of the connecting rod is provided with a dovetail-shaped locking part that matches the dovetail groove 911 on the inner wall of the cylinder 91. The connecting rod slides into the dovetail groove 911 through the dovetail-shaped locking part to achieve circumferential and radial positioning, and is axially locked and fixed by a set screw. The rigid ring serves to guide the yarn 11 and restrict the yarn exit path. After passing through the inner wall of the rigid ring, the yarn 11 enters the yarn guide hole 31 in a stable posture, further improving the uniformity of the yarn winding pitch.

[0051] In another embodiment, the yarn guide positioning ring 7 is an annular airbag, the outer ring of which is fixed to the inner ring of a fixed ring. The fixed ring is detachably connected to the yarn storage cylinder 9 via a connecting rod. The end of the connecting rod is provided with a dovetail-shaped locking part that matches the dovetail groove 911 on the inner wall of the cylinder 91. The connecting rod slides into the dovetail groove 911 through the dovetail-shaped locking part to achieve circumferential and radial positioning, and is axially locked and fixed by a set screw. The annular airbag is made of thermoplastic polyurethane elastomer with added self-lubricating modifier. Its inner ring surface is molded into a smooth surface, which has good wear resistance and a low coefficient of friction, ensuring that the yarn 11 slides smoothly and without obstruction at high speed and is not easily worn on the inner wall of the airbag. The annular airbag is connected to an air pressure control unit. By adjusting the air pressure in the annular airbag, the inner ring of the annular airbag expands towards the center or returns to the fixed ring, thereby adjusting the tension of the yarn 11. The air pressure control unit includes a controller, an electro-proportional valve, and an air pressure sensor. The controller is electrically connected to the electro-proportional valve, which is connected to the annular airbag. The air pressure sensor detects the air pressure inside the annular airbag and feeds back the air pressure signal to the controller. The controller adjusts the air pressure inside the annular airbag through the electro-proportional valve. When the annular airbag is used as the yarn guide positioning ring 7, it can not only guide the yarn 11, but also achieve online stepless adjustment of the tension of the yarn 11 through air pressure regulation. It has a fast response and high precision, further improving the yarn winding quality.

[0052] Please see Figure 8 and Figure 9This invention also discloses an indoor-outdoor interconnection optical cable for intelligent computing parks, comprising optical fiber bundles 12 formed by the aforementioned optical fiber bundling and winding device, multiple optical fiber bundles 12 twisted together and extruded with an inner sheath 18 to form optical fiber unit modules 13, and multiple optical fiber unit modules 13 twisted around a central reinforcing core 14 in a single-layer or multi-layer concentric ring manner to form a cable core. The colors of the yarns 11 of each optical fiber bundle 12 within the same optical fiber unit module 13 constitute a unique module color identification sequence. During construction, the target module can be quickly located and extracted individually based on the color identification, and plug-and-play functionality can be achieved with pre-fabricated terminal connectors, significantly improving construction efficiency. The optical cable also includes a water-blocking layer 15 covering the cable core and an outer sheath 16 extruded around the water-blocking layer 15. The water-blocking layer 15 includes a water-blocking tape longitudinally wrapped around the cable core and water-blocking yarn filling the space between the cable core and the water-blocking tape, achieving full water blocking in both the longitudinal and radial directions. Multiple FRP reinforcements 17 are symmetrically embedded along the inner circumference of the outer sheath 16, improving the tensile and compressive mechanical properties of the optical cable. The inner sheath 18 uses a halogen-free flame-retardant polyolefin sheath, enabling the optical cable to meet the flame-retardant requirements for indoor scenarios; the outer sheath 16 uses a thermoplastic polyurethane elastomer sheath, enabling the optical cable to meet the weather resistance and compressive strength requirements for outdoor scenarios. The inner sheath 18 and outer sheath 16 use different materials, with functional allocations for indoor and outdoor scenarios respectively, so that a single optical cable has both indoor flame-retardant performance and outdoor weather resistance performance, achieving universal applicability for both indoor and outdoor use.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An optical fiber bundling and winding device, characterized in that, include: frame; Multiple drive shafts are spaced apart on the frame along the circumferential direction. Each drive shaft has a through hole that extends along its axial direction. Each drive shaft is provided with a yarn guide mold, and the yarn guide mold has a yarn guide hole that communicates with the through hole. A drive assembly is mounted on the frame and is connected to each of the drive shafts for driving each of the drive shafts to rotate synchronously. Multiple yarn storage cylinders are respectively arranged outside each of the drive shafts and detachably connected to the frame. A yarn reel is rotatably connected inside each yarn storage cylinder. The yarn reel is connected to the drive shaft through a quick-release transmission structure so that the drive shaft drives the yarn reel to rotate inside the yarn storage cylinder. An annular receiving space is formed between the yarn reel and the inner peripheral wall of the yarn storage cylinder. The annular receiving space is connected to an annular yarn outlet gap. Multiple yarn guide positioning rings are arranged one-to-one between each of the annular yarn outlet gaps and the yarn guide mold, and are detachably connected to the yarn storage cylinder. After the yarn is led out from the annular yarn outlet gap, it enters the yarn guide hole through the yarn guide positioning ring. The frame includes a connecting plate and multiple connecting parts detachably connected to the connecting plate. Each drive shaft is rotatably connected to a corresponding connecting part, and each yarn storage cylinder is detachably connected to a corresponding connecting part. The yarn storage cylinder includes a cylinder body and a mounting plate. The cylinder body is a cylindrical component that is hollow inside and open at both ends. One end of the cylinder body is detachably connected to the connecting part through a connector. The mounting plate is rotatably connected to the end of the cylinder body near the connector through a bearing. A limit groove is opened at the end of the mounting plate away from the connector. A locking component is provided on the mounting plate. The yarn reel includes two reel bodies and a winding shaft connected between the two reel bodies. One of the reel bodies is fixed in the limiting groove by the locking assembly, and the other reel body forms the annular yarn outlet gap with the inner wall of the cylinder. The two reel bodies, the winding shaft and the inner wall of the cylinder form the annular receiving space. The winding shaft has an inner hole, the drive shaft passes through the mounting plate and extends into the inner hole, and the drive shaft and the winding shaft are connected by the quick-release transmission structure. An operating space is formed between the connecting part, the connecting member and the end of the yarn storage cylinder. The locking assembly includes a locking block, a locking bolt fixed on the locking block and a nut that cooperates with the locking bolt. The locking block is located on one side of the limiting groove. The locking bolt passes through the mounting plate and extends into the operating space. The nut is located in the operating space.

2. The optical fiber bundling and winding device according to claim 1, characterized in that: The drive assembly includes a drive motor fixed to the connecting plate and a gear ring rotatably connected to the connecting plate. The output shaft of the drive motor is provided with a drive gear that meshes with the gear ring, and each drive shaft is provided with a driven gear that meshes with the gear ring.

3. The optical fiber bundling and winding device according to claim 1, characterized in that: The quick-release transmission structure includes an external spline disposed on the drive shaft and an internal spline disposed in the inner hole of the winding shaft, wherein the internal spline is adapted to the external spline.

4. The optical fiber bundling and winding device according to claim 1, characterized in that: A pressure ring is detachably connected to the inner wall of the cylinder. The inner diameter of the pressure ring is smaller than the outer diameter of the other disc, so that the yarn is radially compressed by the pressure ring when it is led out from the annular yarn outlet gap.

5. The optical fiber bundling and winding device according to claim 1, characterized in that: The yarn guide positioning ring is a rigid ring, and the rigid ring is detachably connected to the yarn storage cylinder via a connecting rod.

6. The optical fiber bundling and winding device according to claim 1, characterized in that: The yarn guide positioning ring is an annular airbag. The outer ring of the annular airbag is fixed to the inner ring of a fixed ring. The fixed ring is detachably connected to the yarn storage cylinder via a connecting rod. The annular airbag is connected to an air pressure control unit. By adjusting the air pressure inside the annular airbag, the inner ring of the annular airbag expands towards the center or returns to the fixed ring, thereby adjusting the tension of the yarn.

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