Optical fiber bundling structure

Abstract

The utility model discloses an optical fiber bundling structure which comprises optical fibers and a reinforcing core, each optical fiber comprises a fiber core and a sheath, a part of the fiber core wraps the sheath, a plurality of optical fibers are uniformly arranged along the circumferential direction of the outer wall of the reinforcing core, and one end, with the sheath, of each optical fiber is bundled with the reinforcing core to form a bundle. One end, far away from the sheath, of the fiber core is bundled and is coated with a bundling sleeve; one end of the protection fiber is fixed in the sheath and arranged on the outer side of the fiber core, and the other end of the protection fiber extends to the outer side of the bundling sleeve and is pressed and fixed through an adjustable metal sleeve; each optical fiber is provided with a plurality of protective fibers, and the protective fibers surround and wrap the bundled optical fibers; and one end of the heat shrink tube sleeves the outer sides of the sheath and the reinforcing core, the other end of the heat shrink tube sleeves the outer sides of the metal sleeve and the bundling sleeve, and a buffer structure is arranged on the inner side of the heat shrink tube. According to the optical fiber bundling structure provided by the utility model, the optical fiber is protected, the tensile and fracture resistance of the optical fiber is enhanced, the impact and vibration of the outside to the optical fiber are reduced, and the optical fiber is prevented from being damaged under the action of external force.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber communication technical field especially, it relates to a kind of optical fiber cluster structure. BACKGROUND

[0002] With the development of information age, people's demand for communication bandwidth and transmission speed is increasing. The transmission capacity of a single optical fiber is limited. In order to realize high-speed and high-capacity information transmission, optical fiber cluster structure emerges as the times require. It can collect multiple optical fibers together to realize parallel transmission of multiple optical signals, greatly improving the efficiency of information transmission.

[0003] In the medical field, such as endoscope, laser surgery and other equipment need multi-channel optical fibers to realize lighting, imaging and energy transmission functions; in the industrial control field, for sensors, machine vision and other equipment, multiple optical fibers are needed to transmit different signals or realize different functions; in the military field, for the signal transmission system of aviation, aerospace and other platforms, optical fiber cluster structure is also needed to meet its high reliability and high integration requirements.

[0004] Optical fibers are relatively fragile, and large bending can easily cause damage, affecting signal transmission. In the cluster structure, multiple optical fibers are concentrated together, and are more susceptible to bending and other external forces. Moreover, in some limited space environments, the wiring and installation of optical fiber clusters are difficult, and are easily damaged by excessive bending. SUMMARY

[0005] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides an optical fiber cluster structure, which provides protection for optical fibers, enhances the tensile and bending resistance of optical fibers, reduces the impact and vibration of the outside world on optical fibers, and prevents optical fibers from being damaged under external force.

[0006] According to the optical fiber cluster structure of the first aspect embodiment of the utility model, the optical fiber includes a fiber core and a sheath, and the fiber core is partially covered by the sheath. Multiple optical fibers are uniformly arranged along the circumferential direction of the outer wall of the reinforcing core. One end of the optical fiber with the sheath is bundled with the reinforcing core. The end of the fiber core away from the sheath is bundled and wrapped with an outer layer of a bundle sleeve. A protective fiber is fixed in the sheath at one end and arranged outside the fiber core. The other end of the protective fiber extends to the outside of the bundle sleeve and is tightly fixed by an adjustable metal sleeve. A plurality of protective fibers are arranged on each optical fiber, and the protective fibers surround the bundled optical fibers. A heat shrink tube is arranged outside the sheath and the reinforcing core at one end and outside the metal sleeve and the bundle sleeve at the other end. The inside of the heat shrink tube is provided with a buffer structure.

[0007] The optical fiber bundle structure has at least the following technical effects: the protective fiber, the metal sleeve and the heat shrink tube with the buffer pad are arranged, additional mechanical protection is provided for the optical fiber, the tensile and folding resistance of the optical fiber is enhanced, the impact and vibration of the optical fiber from the outside are reduced, and the optical fiber is prevented from being damaged under external force.

[0008] According to some embodiments of the present application, the buffer structure is a buffer pad, the heat shrink tube has a single-layer structure at both ends, and the buffer pad is attached to the single-layer structure in the middle part to reduce stress concentration on the optical fiber during heat shrinkage.

[0009] According to some embodiments of the present application, the metal sleeve is provided with an adjusting structure, and the adjusting structure is used to change the size of the metal sleeve to adjust the compression degree of the metal sleeve on the bundle sleeve and the protective fiber.

[0010] According to some embodiments of the present application, the metal sleeve is made of a rectangular metal sheet, the metal sheet is overlapped at both ends after being rolled, and the adjusting structure is arranged at the overlapping position.

[0011] According to some embodiments of the present application, the adjusting structure includes an adjusting groove and an adjusting part, the adjusting part is arranged on the end part of the metal sheet inside the overlapping position, the adjusting groove is arranged on the corresponding position of the metal sheet outside the overlapping position and penetrates the metal sheet, a plurality of fixing positions are arranged on the adjusting groove, the adjusting part extends into the adjusting groove from the bottom of the adjusting groove and can be fixed at any fixing position along the adjusting groove to adjust the size of the metal sleeve.

[0012] According to some embodiments of the present application, the adjusting groove extends along the length direction of the metal sheet, and the plurality of fixing positions are evenly arranged in the length direction of the adjusting groove.

[0013] According to some embodiments of the present application, a fixing hole is arranged at the fixing position, the diameter of the fixing hole is greater than the width of the adjusting groove, the adjusting part is connected to the metal sheet through an extension column, the extension column can move along the adjusting groove, and the bottom of the adjusting part is matched with the fixing hole; when the bottom of the adjusting part is located in the fixing hole, the size of the metal sleeve is fixed; when the bottom of the adjusting part is separated from the fixing hole by stretching the extension column, the extension column can move relative to the adjusting groove to adjust the size of the metal sleeve.

[0014] According to some embodiments of the present application, a plurality of adjusting structures are arranged and evenly distributed along the width direction of the metal sheet.

[0015] According to some embodiments of the present application, the adjusting parts in the plurality of adjusting structures are connected through a connecting rod to realize synchronous control of the plurality of adjusting structures.

[0016] According to some embodiments of the present application, a uniform convex part is arranged on the inner side of the metal sleeve to increase the friction.

[0017] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in connection with the drawings and examples.

[0019] Figure 1 is a structural schematic diagram of the embodiment of the present application;

[0020] Figure 2 is a partial structural schematic diagram of the embodiment of the present application;

[0021] Figure 3 is a structural schematic diagram of the metal sleeve;

[0022] Figure 4 is a partial sectional view of the embodiment of the present application.

[0023] Reference signs:

[0024] Optical fiber 100, core 101, sheath 102, reinforcing core 110, bundle sleeve 120;

[0025] Protective fiber 200;

[0026] Metal sleeve 300, adjusting structure 310, adjusting groove 311, adjusting part 312, fixing hole 313, telescopic column 314, convex part 320;

[0027] Heat shrink tube 400, buffer pad 410. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are the orientation or position relation shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation on the utility model that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as the limitation on the utility model. In addition, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0030] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrally connected, can be mechanical connection, or electrical connection, can be directly connected, or indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Referring to Figures 1 to 4 , the utility model discloses a kind of optical fiber cluster structures, including optical fiber 100, reinforcing core 110, protective fiber 200, metal sleeve 300, heat shrink tube 400.

[0032] Referring to Figure 1 , Figure 4 Optical fiber 100 includes fiber core 101 and sheath 102, and the partial length of fiber core 101 is coated with sheath 102. A plurality of optical fibers 100 are uniformly arranged along the circumferential direction of the outer wall of reinforcing core 110. One end of optical fiber 100 with sheath 102 is bundled with reinforcing core 110, and the end of fiber core 101 away from sheath 102 is bundled and wrapped with a bundling sleeve 120.

[0033] One end of protective fiber 200 is fixed in sheath 102 and located outside fiber core 101, and the other end extends to the outside of bundling sleeve 120 and is tightly fixed by adjustable metal sleeve 300. A plurality of protective fibers 200 are arranged on each optical fiber 100. The protective fibers 200 are arranged and arranged to avoid disorder or damage, and better protect the fiber core 101. Referring to Figure 2 Protective fiber 200 surrounds the bundled optical fiber 100.

[0034] In this embodiment, the protective fiber 200 can be aramid yarn, which has high strength, high modulus, high temperature resistance, chemical corrosion resistance and other characteristics, and can enhance the tensile strength of the optical fiber 100, prevent the optical fiber 100 from being broken due to external force pulling during laying and use; in other embodiments, the protective fiber 200 can also use glass fiber, polyester fiber and other materials.

[0035] The material, wall thickness uniformity, arrangement effect of the protective fiber 200 in each bundle structure, etc. There are certain differences, and the adjustable metal sleeve 300 provided thereby can be suitable for different thicknesses of the bundle sleeve 120 and the protective fiber 200, complete each time the compression and fixation, and improve the bending and tensile protection reliability.

[0036] In addition to fixing the protective fiber 200, the metal sleeve 300 can also provide additional mechanical protection for the optical fiber 100, enhance the tensile and bending resistance of the optical fiber 100, and prevent the optical fiber 100 from being damaged under external force. At the same time, the metal sleeve 300 can also shield external electromagnetic interference and ensure the stability of the optical fiber 100 signal transmission.

[0037] The sheath 102 and the bundle sleeve 120 are wrapped by the heat shrink tube 400, one end of the heat shrink tube 400 is wrapped outside the sheath 102 and the reinforcing core 110, the other end is wrapped outside the metal sleeve 300 and the bundle sleeve 120, the inside of the heat shrink tube 400 is provided with a buffer structure, and the heat shrink tube 400 can be tightly wrapped outside the sheath 102 and the bundle sleeve 120 after heating and shrinking, thereby providing good sealing and protection for the optical fiber 100, and also buffering and damping.

[0038] Through the protective fiber 200, the bundled part of the optical fiber 100 can be effectively protected, the impact and vibration of the external environment on the optical fiber 100 can be reduced, the transmission performance and reliability of the optical fiber 100 can be improved, and the service life of the optical fiber 100 can be prolonged.

[0039] Referring to Figure 4 In some embodiments of the utility model, the buffer structure is a buffer pad 410, the heat shrink tube 400 has a single-layer structure at both ends, and the buffer pad 410 is attached to the middle part in the single-layer structure to reduce stress concentration on the optical fiber 100 during heat shrinkage.

[0040] Referring to Figures 2 to 3 In some embodiments of the utility model, the metal sleeve 300 is provided with an adjusting structure 310, and the adjusting structure 310 is used to change the size of the metal sleeve 300 to adjust the compression degree of the metal sleeve 300 on the bundle sleeve 120 and the protective fiber 200.

[0041] In further embodiments of the utility model, the metal sleeve 300 is made of a rectangular metal sheet, the metal sheet is rolled into a circle, the two end parts overlap, and the adjusting structure 310 is arranged at the overlapping position.

[0042] In the further embodiment of the utility model, the adjusting structure 310 includes adjusting groove 311 and adjusting part 312, adjusting part 312 is arranged on the end of the metal sheet inside the overlapping place, adjusting groove 311 is arranged on the corresponding position of the metal sheet outside the overlapping place and penetrates the metal sheet, a plurality of fixed positions are arranged on adjusting groove 311, adjusting part 312 extends into from the bottom of adjusting groove 311 and can be fixed at any fixed position along adjusting groove 311, to realize the adjustment of the size of metal cover 300, so as to adjust the compression degree of metal cover 300.

[0043] In the further embodiment of the utility model, adjusting groove 311 extends along the length direction of the metal sheet, and the plurality of fixed positions are evenly arranged in the length direction of adjusting groove 311.

[0044] In the further embodiment of the utility model, a fixed hole 313 is arranged at the fixed position, the diameter of fixed hole 313 is greater than the width of adjusting groove 311, adjusting part 312 is connected to the metal sheet through telescopic column 314, the telescopic column 314 can be stretched or contracted by controlling adjusting part 312, the telescopic column 314 is matched with adjusting groove 311, or the size of telescopic column 314 can be less than that of adjusting groove 311, and the telescopic column 314 can move along adjusting groove 311.

[0045] The bottom of adjusting part 312 is matched with fixed hole 313, when telescopic column 314 is moved to the fixed position (namely in fixed hole 313), telescopic column 314 is contracted, the bottom of adjusting part 312 is located in fixed hole 313, adjusting part 312 is limited in cooperation with fixed hole 313, and the size of metal cover 300 is fixed, when telescopic column 314 is stretched, the bottom of adjusting part 312 is away from fixed hole 313, and telescopic column 314 can move relative to adjusting groove 311, to realize the adjustment of the size of metal cover 300.

[0046] The top of adjusting part 312 can be provided with a limiting block (not shown in the figure), the limiting block can be circular with a size greater than that of fixed hole 313, or the limiting block can be rectangular with a length greater than the diameter of fixed hole 313, only the limiting block cannot enter fixed hole 313. When the bottom of adjusting part 312 is located in fixed hole 313, the limiting block abuts against the surface of metal cover 300, so that the metal cover 300 is limited to be loosened up and down, and the fixing effect of metal cover 300 is further ensured.

[0047] In the further embodiment of the utility model, a plurality of adjusting structures 310 are arranged, and are evenly distributed along the width direction of the metal sheet. In the embodiment, two adjusting structures 310 are arranged, and are symmetrically arranged on both sides in the width direction of the metal sheet.

[0048] In the further embodiment of the utility model, the adjusting parts 312 in the plurality of adjusting structures 310 are connected through connecting rods (not shown in the figure), to realize the synchronous control of the plurality of adjusting structures 310.

[0049] With reference to Figure 3 In some embodiments of the present application, the metal sleeve 300 is provided with uniform protrusions 320 on the inner side for increasing friction. In this embodiment, the metal sleeve 300 is provided with elastic threads on the inner side, which can also be in a corrugated structure. When the metal sleeve 300 is compressed, the protrusions 320 can better adapt to the shape of the protective fiber 200, provide more uniform pressure, and at the same time increase the friction to prevent the metal sleeve 300 from sliding.

[0050] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fiber bundle structure, characterized by The application relates to a fiber cable, which comprises the following parts: optical fibers (100) and a reinforcing core (110), the optical fibers (100) comprising a core (101) and a sheath (102), the core (101) covering a part of the sheath (102), a plurality of the optical fibers (100) being arranged uniformly along the outer wall of the reinforcing core (110) in the circumferential direction, one end of the optical fiber (100) with the sheath (102) being bundled with the reinforcing core (110), and the other end of the core (101) being away from the sheath (102) being bundled and being provided with a bundling sleeve (120) outside the outer layer; protective fibers (200) being fixed at one end in the sheath (102) and being arranged outside the core (101), and being extended to the outside of the bundling sleeve (120) and being fixed and compressed by an adjustable metal sleeve (300); a plurality of the protective fibers (200) being arranged on each of the optical fibers (100), and the protective fibers (200) being arranged around the bundled optical fibers (100); a heat-shrinkable tube (400) being arranged at one end outside the sheath (102) and the reinforcing core (110) and being arranged at the other end outside the metal sleeve (300) and the bundling sleeve (120), and the heat-shrinkable tube (400) being provided with a buffer structure inside. The buffer structure is a buffer pad (410), the heat-shrinkable tube (400) is provided with a single-layer structure at both ends, and the buffer pad (410) is arranged in the single-layer structure at the middle part, so as to reduce the stress concentration on the optical fibers (100) during heat shrinkage.

2. A fiber optic ribbon structure as claimed in claim 1, wherein: The metal sleeve (300) is provided with an adjusting structure (310), the adjusting structure (310) is used for changing the size of the metal sleeve (300), so as to adjust the compression degree of the metal sleeve (300) on the bundling sleeve (120) and the protective fibers (200).

3. The fiber bundle structure of claim 1, wherein: The metal sleeve (300) is made of a rectangular metal sheet, the metal sheet is overlapped at both ends after being rolled, and the adjusting structure (310) is arranged at the overlapping position.

4. A fiber optic ribbon structure as claimed in claim 3, wherein: The adjusting structure (310) comprises an adjusting groove (311) and an adjusting part (312), the adjusting part (312) is arranged on the end part of the metal sheet inside the overlapping position, the adjusting groove (311) is arranged on the corresponding position of the metal sheet outside the overlapping position and penetrates through the metal sheet, a plurality of fixing positions are arranged on the adjusting groove (311), the adjusting part (312) is arranged to be inserted from the bottom of the adjusting groove (311) and to be fixed at any one of the fixing positions along the adjusting groove (311), so as to adjust the size of the metal sleeve (300).

5. A fiber optic ribbon structure as claimed in claim 4, wherein: The adjusting groove (311) extends along the length direction of the metal sheet, and a plurality of the fixing positions are arranged uniformly in the length direction of the adjusting groove (311).

6. A fiber optic ribbon structure as claimed in claim 5, wherein: ​ 7. A fiber optic ribbon structure as claimed in claim 6, wherein: The fixed position is provided with a fixed hole (313), the fixed hole (313) diameter is greater than the width of the adjusting groove (311), the adjusting part (312) is connected to the metal sheet through a telescopic column (314), the telescopic column (314) can move along the adjusting groove (311), the bottom of the adjusting part (312) matches the fixed hole (313); when the bottom of the adjusting part (312) is located in the fixed hole (313), the size of the metal sleeve (300) is fixed; when the telescopic column (314) is stretched to make the bottom of the adjusting part (312) away from the fixed hole (313), the telescopic column (314) can move relative to the adjusting groove (311), so that the size of the metal sleeve (300) is adjusted.

8. A fiber optic ribbon structure according to claim 7, wherein: The adjusting structure (310) is provided with multiple adjusting structures (310), which are uniformly distributed along the width direction of the metal sheet.

9. A fiber optic ribbon structure as claimed in claim 8, wherein: The adjusting parts (312) in multiple adjusting structures (310) are connected through connecting rods, so that the multiple adjusting structures (310) are synchronously controlled.

10. The fiber bundle structure of claim 1, wherein: The inner side of the metal sleeve (300) is provided with uniform convex parts (320), which are used for increasing friction.

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