Optical fiber winding structure and fiber coiling box thereof

Abstract

The invention relates to the technical field of optical fiber wiring, in particular to an optical fiber coiling structure and a fiber coiling box thereof.The optical fiber coiling structure comprises a first wire fiber and a second wire fiber, the first wire fiber and the second wire fiber are located in the same layer plane and are both arranged to be spiral, and the second wire fiber is located in a spiral channel formed by the first wire fiber; the center of a box body of the fiber coiling box is provided with a driving part and a spiral wiring duct, the spiral wiring duct comprises a first wiring duct and a second wiring duct, the second wiring duct is located in a spiral channel formed by the first wiring duct, and one end of the first wiring duct and one end of the second wiring duct are both spirally coiled around the driving part from the driving part. The first wire slot and the second wire slot are respectively used for installing a first wire fiber and a second wire fiber and driving the first wire fiber and the second wire fiber to rotate. According to the invention, the density and uniformity of optical fiber wiring can be effectively improved, and loosening is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underwater optical fiber wiring, and more particularly to an optical fiber winding structure and a fiber disc box. BACKGROUND

[0002] In engineering applications, underwater optical fiber connection is usually performed using optical fiber transmission assemblies, and a certain length of redundant optical fiber is usually preset to prevent connection failure due to insufficient optical fiber length. This part of redundant optical fiber is usually fixed and stored in a fiber disc box of an optical fiber connector (a key component of the optical fiber transmission assembly). However, the existing fiber disc box only has a basic storage function, and there are serious deficiencies in the structure design and winding mechanism: when the optical fiber is subjected to a sudden tensile force due to an external load, there is no effective automatic release mechanism in the box to smoothly extract the redundant optical fiber to buffer the tensile force, and the fiber disc structure itself also lacks the ability to buffer the tensile stress through elongation. This rigid constraint can easily cause the optical fiber to exceed its yield limit and break under the action of external tensile force. Deep-sea operating environment is more severe than conventional underwater working conditions - its ocean current dynamics are complex and variable, can exert strong multi-directional impact on the optical fiber and induce large displacement. If the storage length of the optical fiber cannot be effectively released through the buffer mechanism at this time, it will be damaged due to directly bearing a large instantaneous tension.

[0003] More importantly, the current mainstream optical fiber connector fiber disc box and its internal winding structure do not integrate mechanical buffer function. The fiber disc box generally has problems of disordered winding path planning and disordered space arrangement, and the phenomenon of multi-layer optical fiber being stacked and cross-wound in a small space frequently occurs. This not only reduces the space utilization rate, but also forms a fragile structure. Under the continuous ocean current vibration or sudden torsional force impact in deep sea, the disorderedly wound optical fiber is prone to displacement, mutual friction, and even loosening. This structural loosening not only degrades the signal transmission performance (such as increasing the loss and introducing noise), but also significantly accelerates the mechanical fatigue process of the optical fiber under dynamic alternating stress, eventually burying the risk of rupture and seriously threatening the long-term operation safety of the deep-sea communication system. SUMMARY

[0004] The purpose of the present application is to overcome the problems of low orderliness, poor standardization, and low space efficiency of the winding structure of the existing fiber disc box, easy loosening of the winding, and lack of external tensile force buffer mechanism, and to provide an optical fiber winding structure that can effectively improve the density and orderliness of optical fiber wiring and buffer external tensile force, and a fiber disc box with the optical fiber winding structure that can buffer external tensile force while avoiding the defect of loosening of the fiber.

[0005] To solve the above technical problems, the technical solution adopted by the present application is: The application provides a fiber winding structure, which comprises a first fiber and a second fiber, the first fiber and the second fiber are arranged in the same plane and in a spiral shape, the second fiber is arranged in a spiral channel formed by the first fiber, one end of the first fiber close to the spiral center is a first inner joint, one end of the second fiber close to the spiral center is a second inner joint, and the first inner joint is connected with the second inner joint.

[0006] In the working process of the above scheme, the first fiber is wound into a spiral track with a specific number of turns in the plane, and a continuous and regular spiral channel is naturally formed. The second fiber is not independently wound, but is precisely nested inside the spiral channel formed by the first fiber, that is, it is wound in the same direction close to the spiral contour of the first fiber. The two fibers form a double helix structure with spatial complementarity and close fit in the plane, greatly improving the winding density, and can neatly concentrate the longer redundant optical fibers together. Meanwhile, the inner ends of the two fibers close to the spiral center (i.e. the first inner joint and the second inner joint) are fixedly connected with each other, and when the optical fiber is pulled by an external force, the first inner joint and the second inner joint press each other, which can evenly release the buffer tension of the redundant optical fiber.

[0007] Further, the first inner joint and the second inner joint are connected with the outer wall of the connecting ring, and the first fiber and the second fiber are wound in a spiral shape along the circumference of the connecting ring starting from the first inner joint and the second inner joint respectively. The connecting ring is made of optical fiber, which maintains the communication connection of the first fiber and the second fiber, and at the same time, the connecting ring can provide high mechanical stability and a dynamic balance center for the first fiber and the second fiber. External vibration or torsional force is dispersed to the first inner joint and the second inner joint through the ring body, avoiding stress concentration caused by traditional center point fixation, so that the optical fiber is more resistant to tension in deep sea environment.

[0008] Further, the first inner joint and the second inner joint are connected with the outer wall of the connecting ring, and the first fiber and the second fiber are wound in a spiral shape along the circumference of the connecting ring starting from the first inner joint and the second inner joint respectively. The connecting ring is made of optical fiber, which maintains the communication connection of the first fiber and the second fiber, and at the same time, the connecting ring can provide high mechanical stability and a dynamic balance center for the first fiber and the second fiber. External vibration or torsional force is dispersed to the first inner joint and the second inner joint through the ring body, avoiding stress concentration caused by traditional center point fixation, so that the optical fiber is more resistant to tension in deep sea environment.

[0009] The application provides a disc fiber box, which comprises a box body, a driving part and a spiral winding groove arranged in the center of the box body, the spiral winding groove comprises a first winding groove and a second winding groove, the second winding groove is arranged in a spiral channel formed by the first winding groove, one end of the first winding groove and the second winding groove is spirally wound around the driving part from the driving part, the first winding groove and the second winding groove are respectively used for mounting the first fiber and the second fiber, and the driving part is connected with the first inner joint and the second inner joint and drives the first fiber and the second fiber to rotate.

[0010] The spiral winding groove is a preset coaxial nested track system. The first winding groove forms a basic spiral path, and the second winding groove is accurately nested in the continuous spiral channel formed by the first winding groove. When the first fiber and the second fiber are respectively embedded in the corresponding winding groove, the physical position of the first fiber and the second fiber is rigidly constrained by the side wall of the winding groove, so that the first fiber and the second fiber are forced to be arranged along the preset coaxial spiral track. The space uncertainty of the optical fiber in the traditional disc fiber box after being pulled by external force is eliminated, so that the optical fiber is always in the parallel, equidistant and non-crossing mutual embedding state from the starting point to the ending point, the neatness of the fiber winding is improved, and the disorder such as distortion of the fiber when the fiber is stretched by external force is avoided.

[0011] In the use process of the disc fiber box, the driving part is rigidly connected with the first inner joint and the second inner joint. During installation, the driving part is actively rotated to drive the inner joints (and the fixed connecting rings thereon) of the two fibers to synchronously rotate around the center to pull and tighten the first fiber and the second fiber. Then, the driving part remains in the rotated state, and the two fibers can be kept in the straightened state by continuously applying the tightening tension through the driving part, so that loosening is avoided. When the ocean current fluctuates, the two fibers are subjected to external tension, the tension is transmitted to the driving part, the driving part is reversely rotated, and the tightening force is gradually released to buffer the external tension.

[0012] Further, the disc fiber box further comprises a connecting ring, the first inner joint and the second inner joint are connected with the outer wall of the connecting ring, the first fiber and the second fiber are respectively wound around the connecting ring in a spiral manner from the first inner joint and the second inner joint, the driving part comprises an elastic member capable of being deformed under torsion and a rotating shaft, the rotating shaft is rotationally connected with the box body, the elastic member is sleeved on the rotating shaft and connected with the rotating shaft, the elastic member is connected with the first inner joint and the second inner joint, and the connecting ring is sleeved outside the elastic member. The rotating shaft is rotated to drive the elastic member to be deformed, so that when the rotating shaft is rotated by a certain angle and fixed, the elastic member can keep the first fiber and the second fiber in the tightened state.

[0013] Further, the first wire slot or the second wire slot is provided with a protrusion near one end of the elastic member, the protrusion is fixedly connected with the first wire slot or the second wire slot, and the elastic member is slidably connected with the protrusion; the protrusion is used for fixing the elastic member and avoiding irregular movement of the elastic member due to external vibration.

[0014] Further, the third wire and the fourth wire are arranged in the same plane and are in a spiral shape, the fourth wire is arranged in the spiral channel formed by the third wire, one end of the third wire near the spiral center is a third inner joint, one end of the fourth wire near the spiral center is a fourth inner joint, the third inner joint and the fourth inner joint are connected with one of the connecting bands, and the other ends of the two connecting bands are connected with the connecting ring.

[0015] Further, the upper shell and the lower shell are provided with the spiral wire loading slots, the first wire and the second wire are arranged in the spiral wire loading slots in the upper shell or the lower shell, and the third wire and the fourth wire are arranged in the spiral wire loading slots in the other shell.

[0016] Further, the upper shell or the lower shell is provided with a partition plate, the partition plate is detachably connected with the upper shell or the lower shell, the partition plate is provided with a connecting hole, and the connecting band passes through the connecting hole; when the winding structure is designed in multiple layers, the partition plate is arranged to separate two adjacent layers of optical fibers, so that the upper layer of optical fibers is prevented from falling onto the lower layer of optical fibers due to gravity, and the two layers of optical fibers are prevented from being overlapped.

[0017] Further, the side walls of the upper shell and the lower shell are provided with a plurality of wire inlet and outlet ports; the first wire, the second wire, the third wire and the fourth wire are arranged outside the shell through the wire inlet and outlet ports, and the basic function of optical fiber connection is realized.

[0018] Compared with the prior art, the present application has the following advantages: 1. The first wire and the second wire are arranged in the same plane and are in a spiral shape, the second wire is arranged in the spiral channel formed by the first wire, and the double spiral structure formed by the close combination of the first wire and the second wire can greatly improve the winding density, concentrate the long redundant optical fibers together, improve the neatness of optical fiber wiring, and naturally release the length of the redundant optical fibers to buffer the external tension.

[0019] 2. The disc fiber box comprises a box body, the center of the box body is provided with a driving part and a spiral fiber winding groove, the spiral fiber winding groove comprises a first fiber slot and a second fiber slot, the second fiber slot is located in the spiral channel formed by the first fiber slot, the first fiber and the second fiber are respectively embedded in the corresponding fiber slot, the first fiber and the second fiber are forced to arrange along the preset coaxial spiral track, the disorderly movement of the optical fiber after being pulled by external force is avoided, the driving part continuously applies a tightening tension, the two fibers can maintain a straight state, thereby avoiding loosening, the fiber is pulled by external force, the tension is transmitted to the driving part, the driving part reversely rotates, gradually releases the tightening force to buffer the external tension, and the optical fiber is effectively prevented from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a fiber winding structure. Figure 2 It is a front view of a disc fiber box. Figure 3 It is a structural schematic diagram of detachable connection of the upper shell and the lower shell of a disc fiber box. Figure 4 It is Figure 2 It is a sectional view in the A-A direction. Figure 5 It is a structural schematic diagram of the internal structure of a disc fiber box. Figure 6 It is a structural schematic diagram of detachable connection of the partition plate and the upper shell of a disc fiber box.

[0021] In the drawings: 100, first fiber; 110, first inner joint; 200, second fiber; 210, second inner joint; 300, connecting ring; 400, connecting belt; 500, third fiber; 510, third inner joint; 600, fourth fiber; 610, fourth inner joint; 700, box body; 710, driving part; 711, elastic member; 712, rotating shaft; 720, spiral fiber winding groove; 721, first fiber slot; 722, second fiber slot; 730, protrusion; 740, upper shell; 750, lower shell; 760, partition plate; 761, connecting hole; 762, conical protrusion; 770, in-out fiber port. DETAILED DESCRIPTION

[0022] The application will be further described below in combination with the specific embodiments. The drawings are only used for exemplary description, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the application, some components in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it can be understood that some well-known structures in the drawings and their descriptions can be omitted.

[0023] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0024] Embodiment 1 The first embodiment of the optical fiber winding structure of the present embodiment, as shown in Figure 1 The first fiber 100 and the second fiber 200 are arranged in the same plane and are both arranged in a spiral shape, the second fiber 200 is located in the spiral channel formed by the first fiber 100, one end of the first fiber 100 close to the spiral center is a first inner joint 110, one end of the second fiber 200 close to the spiral center is a second inner joint 210, and the first inner joint 110 is connected with the second inner joint 210.

[0025] Specifically, it further comprises a connecting ring 300, the first inner joint 110 and the second inner joint 210 are both connected with the outer wall of the connecting ring 300, the first fiber 100 and the second fiber 200 are respectively wound in a spiral shape along the circumference of the connecting ring 300 from the first inner joint 110 and the second inner joint 210; the connecting ring 300 is made of optical fiber, which maintains the communication connection of the first fiber 100 and the second fiber 200, and at the same time, the arrangement of the connecting ring 300 can provide the first fiber 100 and the second fiber 200 with higher mechanical stability and a dynamic balance center, disperse the external vibration or torsional force through the ring body to the first inner joint 110 and the second inner joint 210, avoid stress concentration caused by traditional center point fixation, and make the optical fiber more resistant to pull in deep sea environment.

[0026] Specifically, the connecting bands 400, the third fiber 500 and the fourth fiber 600 are arranged in the same plane and in a spiral shape, the fourth fiber 600 is arranged in the spiral channel formed by the third fiber 500, one end of the third fiber 500 close to the center of the spiral is a third inner joint 510, one end of the fourth fiber 600 close to the center of the spiral is a fourth inner joint 610, the third inner joint 510 and the fourth inner joint 610 are connected with one connecting band 400 respectively, and the other end of the two connecting bands 400 is connected with the connecting ring 300; the wiring form of the third fiber 500 and the fourth fiber 600 is the same as that of the first fiber 100 and the second fiber 200, there are many optical fibers with different purposes or classifications in underwater optical fiber wiring, the multi-layer design can concentrate the redundant lengths of the multiple optical fibers together, and the connecting bands 400 are used to realize the basic function of communication connection between the adjacent two layers of structures.

[0027] The working principle of the optical fiber winding structure of the embodiment is as follows: The first fiber 100 and the second fiber 200 are connected with two communication nodes respectively, the first inner joint 110 and the second inner joint 210 are connected through the connecting ring 300 to form a complete optical fiber communication loop, the third fiber 500 and the fourth fiber 600 are also connected with another two communication nodes respectively, the third inner joint 510 and the fourth inner joint 610 are connected through the connecting bands 400 and the connecting ring 300 to realize cross communication of the four nodes, and the four fibers form a double spiral structure with spatial complementarity and close fit in two parallel planes, the winding density is greatly improved, and the long redundant optical fibers are neatly concentrated together, when the optical fiber is pulled by external force, the optical fiber is gradually stretched along the spiral path, until the pressure is transmitted to the inner joint, and the redundant optical fiber is released to buffer the pulling force.

[0028] The beneficial effects of the embodiment are as follows: the winding structure of the plane double spiral is adopted, two optical fibers are arranged in the same plane along the same direction, the winding density is greatly improved, and the long redundant optical fibers are neatly concentrated together, and the redundant optical fiber is released to buffer the pulling force when the optical fiber is pulled by external force.

[0029] Embodiment 2 The first embodiment of the fiber disc box is as follows: Figures 2 to 6As shown, including the box 700, the center of the box 700 is provided with the drive part 710 and the spiral winding groove 720, the spiral winding groove 720 includes the first wire groove 721 and the second wire groove 722, the second wire groove 722 is located in the spiral channel formed by the first wire groove 721, one end of the first wire groove 721 and the second wire groove 722 is spirally wound around the driving part 710 from the driving part 710, the first wire groove 721 and the second wire groove 722 are used for mounting the first wire 100 and the second wire 200, the driving part 710 is connected with the first inner joint 110 and the second inner joint 210 and drives the first wire 100 and the second wire 200 to rotate.

[0030] Specifically, the driving part 710 includes the elastic member 711 and the rotating shaft 712, the rotating shaft 712 is rotatably connected with the box 700, the elastic member 711 is sleeved on the rotating shaft 712 and connected with the rotating shaft 712, the elastic member 711 is connected with the first inner joint 110 and the second inner joint 210, and the connecting ring 300 is sleeved outside the elastic member 711; the rotating shaft 712 rotates to drive the elastic member 711 to deform, so that when the rotating shaft 712 rotates by a certain angle and is fixed, the elastic member 711 can keep tension to tighten the first wire 100 and the second wire 200.

[0031] As shown in the figure, Figure 4 As shown in the figure, 5 The driving part 710 can be a clockwork spring or a coil spring structure, the box 700 is provided with a handle outside and connected with the rotating shaft 712, the elastic member 711 is a spiral wound elastic steel band, one end of the outermost side of the steel band is fixed with the first inner joint 110 and the second inner joint 210, and the other end of the innermost side is fixedly connected with the rotating shaft 712, in the installation, the handle is driven to rotate the rotating shaft 712 by using mechanical equipment or manual operation, the rotating shaft 712 can rotate by a certain angle and be fixed, and the steel band is spirally contracted, so as to pull the first wire 100 and the second wire 200 and keep the elastic force.

[0032] Specifically, the first wire groove 721 or the second wire groove 722 is provided with a lug 730 close to one end of the elastic member 711, the lug 730 is fixedly connected with the first wire groove 721 or the second wire groove 722, and the elastic member 711 is slidably connected with the lug 730; the lug 730 is used for fixing the elastic member 711 to avoid irregular movement of the elastic member 711 due to external vibration.

[0033] The working principle of the disc fiber box of the embodiment is as follows: The first line fiber 100 is installed in the first line slot 721, the second line fiber 200 is installed in the second line slot 722, and is connected with the elastic member 711 respectively, the rotating shaft 712 rotates to drive the inner joints of the two line fibers (and the fixed connecting ring 300 thereon) to rotate synchronously around the center to pull and tighten the first line fiber 100 and the second line fiber 200, and then the rotating shaft 712 keeps the state after rotation to make the elastic member 711 continuously exert the tightening pulling force on the light, and the two line fibers keep the straight state to avoid loosening, when the ocean current fluctuates, the two line fibers are subjected to external pulling force, the pulling force is transmitted to the elastic member 711, the elasticity of the elastic member 711 offsets the external pulling force, and at the same time reversely rotates to gradually release the tightening force to buffer the external pulling force.

[0034] The beneficial effects of the embodiment are that the first line fiber 100 and the second line fiber 200 are respectively embedded in the corresponding line slot, and are forced to keep the mutual embedding state of being parallel, equidistant and non-intersecting from the starting point to the ending point, avoiding that the optical fiber is stretched by external force and the winding structure is disturbed, and then the driving part 710 keeps the straight state of the optical fiber to avoid loosening, when the optical fiber is stretched by external force, the elastic force of the elastic member 711 buffers and offsets the external pulling force to avoid damaging the optical fiber.

[0035] Embodiment 3 The embodiment is a second embodiment of the disc fiber box, as shown in the figure, Figure 3 and 6 The difference from the second embodiment is that: Specifically, the box body 700 includes an upper shell 740 and a lower shell 750, the upper shell 740 and the lower shell 750 are detachably connected, and the box body 700 as a whole adopts a detachable design, which is more convenient when installing multiple layers of line fibers.

[0036] As shown in the figure, Figure 3 The upper shell 740 is provided with a buckle, and the lower shell 750 is provided with a clamping protrusion, the buckle and the clamping protrusion are connected to realize the detachable connection of the upper shell 740 and the lower shell 750.

[0037] Specifically, the upper shell 740 and the lower shell 750 are provided with spiral line slots 720, the first line fiber 100 and the second line fiber 200 are installed in the spiral line slots 720 in the upper shell 740 or the lower shell 750, and the third line fiber 500 and the fourth line fiber 600 are installed in the spiral line slots 720 of the other shell.

[0038] Specifically, the upper shell 740 or the lower shell 750 is provided with a partition plate 760, the partition plate 760 is detachably connected with the upper shell 740 or the lower shell 750, the partition plate 760 is provided with a connecting hole 761 in the center, and the connecting belt 400 passes through the connecting hole 761; when the winding structure adopts a multi-layer design, the partition plate 760 needs to be arranged to separate the two adjacent layers of optical fibers, so as to avoid that the upper layer of optical fibers falls onto the lower layer of optical fibers due to its own gravity, and causes the two layers of optical fibers to cross and overlap.

[0039] As shown in Figure 6 The partition plate 760 is provided with a conical protrusion 762 outside, the inner wall of the upper shell 740 is provided with a conical groove, the protrusion is clamped into the groove to realize the detachable connection between the partition plate 760 and the upper shell 740.

[0040] Specifically, the side walls of the upper shell 740 and the lower shell 750 are provided with a plurality of line inlet and outlet ports 770; the first fiber 100, the second fiber 200, the third fiber 500 and the fourth fiber 600 all extend out of the shell through the line inlet and outlet port 770 to realize the basic function of optical fiber connection.

[0041] The working principle of the disc fiber box of the embodiment is as follows: During installation, the optical fibers are sequentially installed in the spiral winding grooves 720 of the upper shell 740 and the lower shell 750, the optical fibers are inserted from the line inlet and outlet port 770, and the elastic member 711 is connected at the center of the box body 700, after completion, the partition plate 760 is installed, and finally the upper shell 740 and the lower shell 750 are installed and fixed to complete the assembly.

[0042] The beneficial effects of the embodiment are that the box body 700 adopts the split design of the upper shell 740 and the lower shell 750, and the partition plate 760 is additionally arranged in the box body 700 to improve the convenience of installation and the reliability of use.

[0043] In the specific contents of the above specific embodiments, any technically feasible combination can be made without contradiction, and in order to make the description simple, all possible combinations of the above technical features are not described, but as long as the combination of these technical features does not exist contradiction, it should be considered as the scope of the description.

[0044] Obviously, the above embodiments of the application are only examples for clearly illustrating the application, and are not intended to limit the implementation modes of the application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the implementation modes are not enumerated. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the claims of the application.

Claims

1. An optical fiber winding structure, characterized in that: The invention comprises a first fiber (100) and a second fiber (200), wherein the first fiber (100) and the second fiber (200) are in the same plane and are both arranged in a spiral shape, the second fiber (200) is located in a spiral channel formed by the first fiber (100), an end of the first fiber (100) close to the spiral center is a first inner joint (110), and an end of the second fiber (200) close to the spiral center is a second inner joint (210), and the first inner joint (110) is connected to the second inner joint (210).

2. The optical fiber winding structure according to claim 1, characterized in that: The invention also includes a connecting ring (300), wherein the first inner joint (110) and the second inner joint (210) are both connected to the outer wall of the connecting ring (300), and the first fiber (100) and the second fiber (200) respectively start from the first inner joint (110) and the second inner joint (210) and are spirally coiled along the circumference of the connecting ring (300).

3. The optical fiber winding structure according to claim 2, characterized in that: The invention also includes a connecting belt (400), a third fiber (500) and a fourth fiber (600), wherein the third fiber (500) and the fourth fiber (600) are in the same plane and are both arranged in a spiral shape, and the fourth fiber (600) is located in the spiral channel formed by the third fiber (500), and the end of the third fiber (500) close to the spiral center is a third inner joint (510), and the end of the fourth fiber (600) close to the spiral center is a fourth inner joint (610), and the third inner joint (510) and the fourth inner joint (610) are each connected to one of the connecting belts (400), and the other ends of the two connecting belts (400) are both connected to the connecting ring (300).

4. A fiber coil box, comprising a box body (700), characterized in that: A driving portion (710) and a spiral wire groove (720) are provided at the center of the box body (700), and the spiral wire groove (720) includes a first wire groove (721) and a second wire groove (722), and the second wire groove (722) is located in a spiral channel formed by the first wire groove (721), and one end of the first wire groove (721) and the second wire groove (722) are both spirally wound around the driving portion (710) starting from the driving portion (710), and the first wire groove (721) and the second wire groove (722) are respectively used to install the first fiber (100) and the second fiber (200) in the optical fiber winding structure according to claim 1, and the driving portion (710) is connected to the first internal joint (110) and the second internal joint (210) and drives the first fiber (100) and the second fiber (200) to rotate.

5. A fiber coil box according to claim 4, characterized in that: The invention also includes a connecting ring (300), wherein the first inner joint (110) and the second inner joint (210) are both connected to the outer wall of the connecting ring (300), and the first fiber (100) and the second fiber (200) respectively start from the first inner joint (110) and the second inner joint (210) and are spirally wound along the circumference of the connecting ring (300); The driving part (710) includes an elastic member (711) capable of withstanding deformation due to torsion and a rotating shaft (712), wherein the rotating shaft (712) is rotatably connected to the box body (700), the elastic member (711) is mounted on the rotating shaft (712) and connected to the rotating shaft (712), the elastic member (711) is connected to the first inner joint (110) and the second inner joint (210), and the connecting ring (300) is mounted outside the elastic member (711).

6. A fiber coil box according to claim 5, characterized in that: A protrusion (730) is provided at one end of the first wire groove (721) or the second wire groove (722) close to the elastic member (711); the protrusion (730) is fixedly connected to the first wire groove (721) or the second wire groove (722); and the elastic member (711) is slidably connected to the protrusion (730).

7. A fiber coil box according to claim 5, characterized in that: It also includes a connecting belt (400), a third fiber (500) and a fourth fiber (600), wherein the third fiber (500) and the fourth fiber (600) are in the same plane and are both arranged in a spiral shape, and the fourth fiber (600) is located in the spiral channel formed by the third fiber (500), and the end of the third fiber (500) close to the spiral center is a third inner joint (510), and the end of the fourth fiber (600) close to the spiral center is a fourth inner joint (610), and the third inner joint (510) and the fourth inner joint (610) are each connected to one of the connecting belts (400), and the other ends of the two connecting belts (400) are both connected to the connecting ring (300); The box body (700) comprises an upper shell (740) and a lower shell (750), and the upper shell (740) and the lower shell (750) are detachably connected.

8. A fiber tray box according to claim 7, characterized in that: The spiral wiring groove (720) is provided in both the upper shell (740) and the lower shell (750); the first fiber (100) and the second fiber (200) are installed in the spiral wiring groove (720) in the upper shell (740) or the lower shell (750); and the third fiber (500) and the fourth fiber (600) are installed in the spiral wiring groove (720) of the other shell.

9. The fiber tray box according to claim 7, characterized in that: A partition (760) is provided in the upper shell (740) or the lower shell (750), and the partition (760) is detachably connected to the upper shell (740) or the lower shell (750). A connecting hole (761) is provided at the center of the partition (760), and the connecting belt (400) passes through the connecting hole (761).

10. A fiber coil box according to any one of claims 7 to 9, characterized in that: The side walls of the upper shell (740) and the lower shell (750) are both provided with a plurality of wire inlet and outlet ports (770).

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