A butterfly optical cable with an impact-resistant structure and its installation pipeline

Abstract

The present invention pertains to the technical field of optical cable, and mentions a butterfly optical cable with an impact-resistant structure and its installation pipeline. Aiming at the existing sheath generally consisting of only one layer of rubber, which cannot provide sufficient protection for the optical fiber, including the optical fiber, the optical fiber is sleeved with a butterfly sheath, symmetrically distributed strengthening members are arranged inside the butterfly sheath, the butterfly sheath is sleeved with a buffer sleeve, the buffer sleeve is sleeved with an armor skin, an inner rubber sleeve is sleeved on the outside of the armor skin, uniformly distributed partition rings are fixedly connected to the inner rubber sleeve, the uniformly distributed partition rings are jointly sleeved with an outer rubber sleeve, a cavity is formed jointly by the inner rubber sleeve, the outer rubber sleeve and two adjacent partition rings, and a fluid is injected into the cavity. When the outer rubber sleeve is impacted, the present invention utilizes the mechanical property that the greater the stress on the shear thickening fluid, the higher its viscosity, so that the shear thickening fluid resists the impact, thereby playing a role in protecting the armor skin.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cables, and particularly to a butterfly optical cable with an impact-resistant structure and its installation pipeline. Background Technique

[0002] An optical cable, also known as an optical fiber cable, is a communication line that uses light to transmit data in fibers made of glass or plastic. Compared with traditional copper cables, optical cables have significant advantages such as fast transmission speed, low signal attenuation, strong anti-electromagnetic interference, and large data capacity. They are an important part of modern communication network infrastructure. The name of the butterfly optical cable comes from its flat shape and the design of the strengthening member, and it gets its name because its cross-section looks like the wings of a butterfly. Existing butterfly optical cables generally consist only of optical fibers, strengthening members, and sheaths. Among them, the optical fibers are used to transmit optical signals, the strengthening members are used to improve the anti-bending degree of the optical cable, and the sheaths are used to protect the optical fibers. However, since the existing sheaths generally consist only of a layer of rubber, this structure is extremely easy to damage when subjected to large shear stress and impact force, and cannot provide sufficient protection for the optical fibers. Once the optical fibers are damaged, the information transmission they are responsible for will be immediately interrupted, seriously affecting the timely transmission of information. Summary of the Invention

[0003] The purpose of the present invention is to provide a butterfly optical cable with an impact-resistant structure and its installation pipeline to solve the problems raised in the above background technique.

[0004] The technical solution of the present invention is: A butterfly optical cable with an impact-resistant structure includes an optical fiber. The optical fiber is sleeved with a butterfly sheath. Symmetrically distributed strengthening members are arranged inside the butterfly sheath. A buffer sleeve is sleeved outside the butterfly sheath. An armor skin is sleeved outside the buffer sleeve. An inner rubber sleeve is sleeved outside the armor skin. Uniformly distributed partition rings are fixedly connected to the inner rubber sleeve. The uniformly distributed partition rings are jointly sleeved with an outer rubber sleeve. The inner rubber sleeve, the outer rubber sleeve, and two adjacent partition rings jointly form a cavity, and a fluid is injected into the cavity.

[0005] As a preferred technical solution of the present invention, the fluid is a shear thickening fluid, which is used to resist rapid impact and disperse extrusion force.

[0006] As a preferred technical solution of the present invention, both the inner rubber sleeve and the outer rubber sleeve are provided with fibers along their axes and perpendicular to their axes, and the fiber density perpendicular to their axes is greater than the fiber density along their axes.

[0007] As a preferred technical solution of the present invention, the partition rings are made of hard materials and are used to resist impact and extrusion.

[0008] Another object of the present invention is to provide an installation pipeline, which applies the above-mentioned butterfly optical cable with an impact-resistant structure, and includes a pipeline for laying the butterfly optical cable. The pipeline is rotatably connected with symmetrically distributed rotating shafts that penetrate it. The rotating shafts are rotatably connected with evenly distributed sprockets. A chain is arranged between two corresponding sprockets on different rotating shafts. The chain is fixedly connected with symmetrically and evenly distributed hinge seats. The hinge seats are rotatably connected with clamps, and a torsion spring is arranged between the clamp and the adjacent hinge seat.

[0009] As a preferred technical solution of the present invention, the clamp is elastic and used to clamp optical cables of different sizes.

[0010] As a preferred technical solution of the present invention, evenly distributed fixing frames are fixedly connected inside the pipeline, and evenly distributed pressing plates are fixedly connected together by the evenly distributed fixing frames.

[0011] As a preferred technical solution of the present invention, a roller is rotatably connected to one side of the clamp close to the pressing plate, and the roller is in contact and cooperation with the adjacent pressing plate.

[0012] As a preferred technical solution of the present invention, evenly distributed sliding blocks are spline-connected to the rotating shaft on one side. A circumferentially evenly distributed convex column is fixedly connected to the side of the sliding block close to the adjacent sprocket. A circumferentially evenly distributed groove is arranged on the side of the sprocket close to the adjacent sliding block. The convex column is in limit cooperation with the adjacent groove.

[0013] As a preferred technical solution of the present invention, a slope is arranged on the side of the convex column close to the adjacent sliding block for inserting the convex column into the adjacent groove.

[0014] Beneficial effects: When the outer rubber sleeve of the present invention is impacted, the shear thickening fluid is used to resist the impact by utilizing the mechanical property that the greater the stress on the shear thickening fluid, the higher the viscosity, thereby playing a role in protecting the armored skin.

[0015] By arranging criss-cross fibers on the inner rubber sleeve and the outer rubber sleeve, the toughness of the inner rubber sleeve and the outer rubber sleeve is increased, and the fiber density along the axis of the inner rubber sleeve and the outer rubber sleeve is less than the fiber density perpendicular to their axes. When the outer rubber sleeve is squeezed, the squeezed part of the outer rubber sleeve extends along the axis, thereby resisting the extrusion of the outer rubber sleeve.

[0016] By clamping the adjacent two clamps on the optical cable and dragging the optical cable, the workload of laying the optical cable in the pipeline is reduced, the laying efficiency of the optical cable in the pipeline is improved, and multiple groups of clamps are used to clamp the part of the optical cable entering the pipeline, avoiding the messy distribution of the optical cable in the pipeline and affecting the laying and maintenance. Brief Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 is a three-dimensional structural sectional view of the pipeline of the present invention;

[0019] Figure 3 is a three-dimensional structural sectional view of the inner rubber sleeve and the outer rubber sleeve of the present invention;

[0020] Figure 4 is a plan structural schematic diagram of the optical fiber and the armor skin of the present invention;

[0021] Figure 5 is a three-dimensional structural schematic diagram of the fixing frame and the pressing plate of the present invention;

[0022] Figure 6 is a three-dimensional structural schematic diagram of the rotating shaft and the sprocket of the present invention;

[0023] Figure 7 is a three-dimensional structural schematic diagram of the hinge seat and the clamp of the present invention;

[0024] Figure 8 is a three-dimensional structural sectional view of the clamp of the present invention;

[0025] Figure 9 is a three-dimensional structural sectional view of the 8-sprocket, 15-slider and 16-protrusion of the present invention.

[0026] Wherein: 1-optical fiber, 101-butterfly sheath, 102-strengthening member, 103-buffer sleeve, 2-armor skin, 3-inner rubber sleeve, 4-separating ring, 5-outer rubber sleeve, 6-pipeline, 7-rotating shaft, 8-sprocket, 9-chain, 10-hinge seat, 11-clamp, 12-fixing frame, 13-pressing plate, 14-roller, 15-slider, 16-protrusion. Detailed Description of the Invention

[0027] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0028] Existing sheaths are generally composed of only one layer of rubber. Such a structure is extremely vulnerable to damage when subjected to large shear stresses and impact forces and cannot provide sufficient protection for optical fibers.

[0029] Example 1: A butterfly optical cable with an impact-resistant structure, as Figures 1 - 4 shown, includes an optical fiber 1. A butterfly sheath 101 is sleeved outside the optical fiber 1. The butterfly sheath 101 is used to protect the optical fiber 1. Two symmetrically distributed reinforcing members 102 are arranged inside the butterfly sheath 101. A buffer sleeve 103 is sleeved outside the butterfly sheath 101. The buffer sleeve 103 is made of an elastic material and is used to buffer the impact on the cable armor skin 2, reducing the impact force transmitted to the adjacent butterfly sheath 101. An armor skin 2 is sleeved outside the buffer sleeve 103. The armor skin 2 is made of a metal material and is used to provide protection for the buffer sleeve 103 as a hard outer shell. An inner rubber sleeve 3 is sleeved outside the armor skin 2. A plurality of partition rings 4 evenly distributed along its axis are fixedly connected to the outside of the inner rubber sleeve 3. The partition rings 4 are made of a hard material and are used to resist impact and extrusion. An outer rubber sleeve 5 is sleeved outside the evenly distributed partition rings 4. The inner rubber sleeve 3, the outer rubber sleeve 5 and two adjacent partition rings 4 together form a cavity. A fluid is injected into the cavity. The fluid is used to disperse the pressure locally received by the outer rubber sleeve 5 to the two partition rings 4 adjacent to the cavity, the part of the inner rubber sleeve 3 adjacent to the cavity, and the part of the outer rubber sleeve 5 adjacent to the cavity except the part receiving the pressure, thereby reducing the pressure transmitted by the outer rubber sleeve 5 to the armor skin 2. The fluid is a shear thickening fluid (a non-Newtonian fluid, which shows a large viscosity (i.e., hardness) when the shear stress it receives is large, such as corn starch paste) and is used to resist rapid impact and disperse the extrusion force. Fibers are arranged on both the inner rubber sleeve 3 and the outer rubber sleeve 5 along their axes and perpendicular to their axes. The fibers are used to increase the toughness of the inner rubber sleeve 3 and the outer rubber sleeve 5, and the fiber density perpendicular to their axes is greater than the fiber density along their axes, so that the toughness of the inner rubber sleeve 3 and the outer rubber sleeve 5 in the direction perpendicular to their axes is greater than the toughness in the direction along their axes. At this time, when the outer rubber sleeve 5 is squeezed, the fluid in the cavity adjacent to the compressed part is squeezed and flows, acting on the inner wall of the cavity with the pressure. At this time, it is difficult for the outer rubber sleeve 5 to expand around, and it is easier to deform in the direction along its axis. Therefore, the fluid pushes the two partition rings 4 adjacent to the cavity to move away from each other, so that the outer rubber sleeve 5 is stretched along its axis, thereby resisting the extrusion received by the outer rubber sleeve 5.

[0030] When the optical cable is impacted during use, taking a brick falling downward on the optical cable as an example, the brick falling causes an impact on the outer rubber sleeve 5. The outer rubber sleeve 5 deforms under the impact, with the upper side of the outer rubber sleeve 5 sinking downward. The shear thickening fluid in the cavity adjacent to the impacted position of the outer rubber sleeve 5 exhibits a hard property under the rapid impact, thus counteracting the impact force generated by the brick falling and preventing the optical cable from being damaged by the impact. When the outer rubber sleeve 5 is squeezed (not a rapid impact), the outer rubber sleeve 5 deforms under the squeeze. The shear thickening fluid in the cavity adjacent to the squeezing position flows under the squeeze, and the shear thickening fluid pushes the two adjacent separating rings 4 to move away from each other. At this time, since the fiber density perpendicular to the axes of the inner rubber sleeve 3 and the outer rubber sleeve 5 is greater than the fiber density along the axes of the two, the inner rubber sleeve 3 and the outer rubber sleeve 5 are stretched in the direction along their axes, and the pressure in the surrounding directions is difficult to cause the outer rubber sleeve 5 near this cavity to expand outward. At this time, the outer rubber sleeve 5 is pulled along its axis, and this pull will counteract the squeezing force on the outer rubber sleeve 5 (just like when the referee steps on the rope in a tug-of-war game, and when the players on both sides straighten the rope after the start, they will lift the referee), thus preventing the armor skin 2 from being squeezed. And due to the presence of the shear thickening fluid in the cavity, when the outer rubber sleeve 5 is squeezed, the outer rubber sleeve 5 squeezes the shear thickening fluid to move in other directions. At this time, the shear thickening fluid acts on other parts of the adjacent cavity with the local squeeze force on the outer rubber sleeve 5, thereby dispersing the local squeeze force on the outer rubber sleeve 5 and preventing the armor skin 2 from deforming due to excessive local pressure. When the outer rubber sleeve 5 and the inner rubber sleeve 3 are damaged due to excessive impact force, at this time, the remaining impact force acts on the armor skin 2. The armor skin 2 deforms after being impacted. When the armor skin 2 deforms, except for the impacted part, the area near the impacted part also deforms synchronously, thereby dispersing the impact force acting on the buffer sleeve 103 by the armor skin 2. The armor skin 2 deforms and squeezes the buffer sleeve 103 inside it to deform. The buffer sleeve 103 buffers the impact on the armor skin 2 and prevents the deformation of the armor skin 2 from acting on the butterfly sheath 101 and damaging the optical fiber 1.

[0031] Existing optical cable ducts generally lay multiple optical cables, and the multiple optical cables are arranged messily in the duct. When repairing a damaged optical cable, due to the multiple optical cables being intertwined with each other, the resistance encountered during the process of removing the optical cable is extremely large, affecting the work efficiency. Moreover, when laying a new optical cable into the duct, it is necessary to first extend a traction rope from one end of the duct to the other end, then connect the traction rope to the new optical cable, and then pull the traction rope to pull the optical cable into the duct to complete the laying, and the process is complex.

[0032] Embodiment 2: On the basis of Embodiment 1, an installation duct, which applies the above-mentioned butterfly optical cable with an anti-impact structure, such as Figure 1 、 Figure 2 、 Figures 5 - 8As shown in the figure, it includes a pipeline 6 for laying butterfly optical cables. The pipeline 6 is rotatably connected with two rotating shafts 7 that are symmetrically distributed front and back and penetrate through it. The rotating shafts 7 are rotatably connected with three sprockets 8 evenly distributed along their axes. A chain 9 is arranged between two corresponding sprockets 8 on different rotating shafts 7. The chain 9 is fixedly connected with hinge seats 10 that are symmetrically distributed left and right and evenly distributed. The hinge seats 10 are rotatably connected with a clamp 11 for clamping the optical cable. The chain 9 rotates to drive the clamp 11 to drive the optical cable to move. The clamp 11 is elastic and used to clamp optical cables of different sizes. When the diameter of the optical cable is large, adjacent clamps 11 deform when clamping the optical cable and clamp the optical cable. A torsion spring is arranged between the clamp 11 and the adjacent hinge seat 10, and this torsion spring is used to reset the adjacent clamps 11.

[0033] As Figure 2 and Figures 5 - 8 shown in the figure, four fixing frames 12 evenly distributed are fixedly connected inside the pipeline 6. Three pressing plates 13 evenly distributed are jointly fixedly connected to the upper sides of the four fixing frames 12. Symmetrically distributed inclined surfaces are arranged on the front and rear sides of the pressing plates 13 for making adjacent clamps 11 rotate around their rotating joints with adjacent hinge seats 10.

[0034] As Figure 7 and Figure 8 shown in the figure, a roller 14 is rotatably connected to the side of the clamp 11 close to the pressing plate 13. The roller 14 is in contact and cooperation with the adjacent pressing plate 13. The roller 14 is used to reduce the friction between the clamp 11 and the adjacent pressing plate 13, thereby reducing the resistance when laying the optical cable and prolonging the service life of this optical cable.

[0035] As Figure 6 and Figure 9 shown in the figure, the front rotating shaft 7 is spline-connected with three sliding blocks 15 evenly distributed. Six convex columns 16 evenly distributed in the circumferential direction are fixedly connected to the right sides of the sliding blocks 15. Six grooves evenly distributed in the circumferential direction are arranged on the left side of the sprocket 8. The convex columns 16 are in limit cooperation with the adjacent grooves. When the convex columns 16 are inserted into the adjacent grooves on the adjacent sliding blocks 15, when the sliding blocks 15 rotate with the adjacent rotating shafts 7, the adjacent sprockets 8 are driven to rotate through the adjacent convex columns 16. An inclined surface is arranged on the right side of the convex columns 16 for making the convex columns 16 easier to insert into the adjacent grooves.

[0036] When laying the optical cable, first bury the pipeline 6 at the place of use, then put the outer rubber sleeve 5 on the upper side of one of the chains 9, then push the adjacent sliding block 15 to move to the right, so that the six bosses 16 on the sliding block 15 are inserted into the grooves of the adjacent sprocket 8, and then rotate the rotating shaft 7 clockwise from the right side view, the rotating shaft 7 drives the three sliding blocks 15 to rotate, the sliding block 15 drives the adjacent sprocket 8 to rotate through the bosses 16 thereon, the sprocket 8 drives the adjacent chain 9 to rotate clockwise from the right side view, the chain 9 drives the hinge seat 10 thereon to rotate, the hinge seat 10 drives the adjacent clamp 11 to rotate, after the clamp 11 rotates from the lower side of the adjacent chain 9 to the upper side, the clamp 11 drives the roller 14 thereon to move backward until it contacts the inclined surface of the adjacent extrusion plate 13, at this time the extrusion plate 13 squeezes the roller 14, the roller 14 moves backward while rolling along the edge of the adjacent extrusion plate 13, and the roller 14 drives the adjacent The adjacent clamps 11 rotate around the rotation connection between them and the adjacent hinged seats 10 and store force on the adjacent torsion springs. When the roller 14 moves to separate from the inclined surface on the front side of the extrusion plate 13, the two adjacent clamps 11 clamp the outer rubber sleeve 5 and drive it to move backward. As the chain 9 rotates, the two subsequent adjacent clamps 11 clamp the outer rubber sleeve 5 again. When the outer rubber sleeve 5 passes through the rear side of the pipe 6, the two clamps 11 that originally clamped the outer rubber sleeve 5 contact the inclined surface on the rear side of the adjacent extrusion plate 13. At this time, the clamps 11 rotate under the action of the adjacent torsion springs, so that the adjacent rollers 14 keep in contact with the inclined surface on the rear side of the adjacent extrusion plate 13. When the roller 14 separates from the inclined surface on the rear side of the adjacent extrusion plate 13, the clamps 11 reset under the action of the adjacent torsion springs and release the clamping of the outer rubber sleeve 5. When the length of the outer rubber sleeve 5 is adjusted appropriately, the rotation of the rotating shaft 7 is stopped. At this time, the laying of the outer rubber sleeve 5 in the pipe 6 is completed.

[0037] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An installation pipeline, characterized in that, It includes a pipeline (6) which is used for laying butterfly optical cables. The pipeline (6) is rotatably connected with rotating shafts (7) that are symmetrically distributed and penetrate through it. The rotating shafts (7) are rotatably connected with evenly distributed sprockets (8). A chain (9) is arranged between two corresponding sprockets (8) on different rotating shafts (7). The chain (9) is fixedly connected with symmetrically and evenly distributed hinge seats (10). The hinge seats (10) are rotatably connected with clamps (11), and a torsion spring is arranged between the clamp (11) and the adjacent hinge seat (10). Uniformly distributed fixing frames (12) are fixedly connected inside the pipeline (6), and the uniformly distributed fixing frames (12) are jointly fixedly connected with uniformly distributed pressing plates (13). The rotating shaft (7) on one side is spline-connected with evenly distributed sliding blocks (15). The side of the sliding block (15) close to the adjacent sprocket (8) is fixedly connected with circumferentially evenly distributed convex columns (16). The side of the sprocket (8) close to the adjacent sliding block (15) is provided with circumferentially evenly distributed grooves, and the convex columns (16) are in limit fit with the adjacent grooves. The clamp (11) is elastic and is used for clamping optical cables of different sizes. The side of the clamp (11) close to the pressing plate (13) is rotatably connected with a roller (14), and the roller (14) is in contact fit with the adjacent pressing plate (13). The side of the convex column (16) close to the adjacent sliding block (15) is provided with an inclined surface for inserting the convex column (16) into the adjacent groove.

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