Cicada-proof anti-seismic butterfly-shaped leading-in optical cable
By setting a tight cladding, inner sheath layer and sheath layer on the outside of the optical fiber, and designing cavity and buffer components in the inner sheath layer, the problem of damage to the optical cable by cicadas and insect eggs is solved, and the mechanical properties of the optical fiber are enhanced. Transmission performance, adapted to the installation of various environments.
Patent Information
- Application Number
- CN202420581132.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-25
AI Technical Summary
After the existing butterfly-shaped optical cable is installed and laid in densely packed places, it is easily damaged by cicadas. The eggs discharged by cicadas are prone to damage the optical cable and are easily damaged by vibration and caused by optical fibers.
A kind of anti-cicada-resistant butterfly-shaped introduction optical cable is designed. By setting a tight cladding, inner sheath layer and sheath layer on the outside of the optical fiber, a cavity and buffering component are provided in the inner sheath layer, and there are no grooves on the surface of the sheath layer to prevent it from being Egg damage.
It effectively prevents the damage to optical cables by cicadas and insect eggs, enhances the mechanical properties and transmission properties of optical fibers, and can adapt to the laying of various environments.
Smart Images
Figure CN222439728U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical cables, in particular to an anti-cicada and anti-seismic butterfly-shaped lead-in optical cable. Background Art
[0002] With the advent of the information age, the amount of information transmission has exploded. The rapid development of FTTH services and the launch of the three-network integration project have brought the domestic optical communication industry into a new era of rapid development. The development of the industry has promoted technological progress, new optical cable structures have continued to emerge, and production and manufacturing technologies have also been improved. With the extension of optical fiber to the user end, various optical cable structures are required for various purposes. Telecom network operators have put forward new requirements for optical cable products: 1. Use limited funds to build optical cable routes to meet the needs of rapid information growth; 2. Try to reduce construction and infrastructure costs and reduce the cost of laying optical cables; 3. Shorten the construction time of optical cables. The existing butterfly-shaped lead-in optical cables are very easy to be damaged by cicadas after being installed in densely wooded areas. The eggs discharged by cicadas can easily damage the optical cables, and vibrations can easily cause damage to the optical fibers. Utility Model Content
[0003] To this end, the technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide an anti-insect and earthquake-resistant butterfly-shaped introduction optical cable with reasonable structural design, reasonable size, light weight, good mechanical properties and transmission performance. The cavity design and buffer components inside the cable effectively play the role of shockproof and pressure resistance, and the groove-free design on the surface of the sheath layer effectively prevents the damage of insect eggs to the optical cable.
[0004] In order to solve the above technical problems, the utility model provides an anti-cicada and anti-seismic butterfly-shaped optical cable, including an optical fiber, a tight sheath, a reinforcement, an inner sheath and a sheath, wherein the tight sheath is arranged on the outside of the optical fiber, the inner sheath is arranged on the outside of the tight sheath, the sheath is arranged on the outside of the inner sheath, and a cavity is arranged in the inner sheath, and a buffer component is arranged in the cavity. The optical fiber is wrapped in the tight sheath, so that secondary protection of the optical fiber is achieved. At the same time, the tight sheath is protected by the inner sheath. When the optical fiber is bent, the strength of the optical fiber itself can be enhanced to avoid the breakage of the optical fiber when it is bent; the cavity design of the inner sheath and the buffer component in the cavity effectively play the role of shockproof and pressure resistance, and the design without grooves on the surface of the sheath effectively prevents insect eggs from damaging the optical cable, and can adapt to the laying in various environments.
[0005] In one embodiment of the present invention, a reinforcement member is provided in the inner protective layer.
[0006] In one embodiment of the present invention, the reinforcement members include two, which are symmetrically arranged with the optical fiber as the center.
[0007] In one embodiment of the present invention, the reinforcement is FRP or steel wire.
[0008] In one embodiment of the utility model, a groove 1 is provided in the cavity of the inner sheath on one side facing the optical fiber, and the groove 1 is filled with fire extinguishing dry powder. By filling the fire extinguishing dry powder at the bottom of the groove 1, when the optical cable encounters an open fire, the fire extinguishing dry powder 11 can play a role in extinguishing the fire, thereby buying precious time for the cable core to transmit signals.
[0009] In one embodiment of the utility model, the buffer component is a spring sheet. The buffer component is a spring sheet as a shock-absorbing and buffering measure, which is easy to install and can provide shock-proof and pressure-resistant protection and buffering performance for the cable core when the optical cable is subjected to external pressure.
[0010] In one embodiment of the utility model, the outer surface of the inner sheath is provided with a groove 2, and a tear rope is provided in the groove 2. The tear rope is arranged in the inner sheath, which can facilitate the stripping of the optical cable and make up for the performance of the sheath layer without a groove to strip the cable.
[0011] In one embodiment of the utility model, the sheath layer includes a flame retardant layer and a wear-resistant layer arranged outside the flame retardant layer. The sheath layer adopts a friction-resistant, environmentally friendly flame retardant thermoplastic polyurethane (TPU) sheath, which has good flame retardant properties, high wear resistance, corrosion resistance, a wide hardness range, smooth reflection, excellent mechanical properties, etc., which is very in line with the development trend of contemporary environmental protection.
[0012] In one embodiment of the utility model, the optical fiber is a G657A2 optical fiber. The optical fiber adopts a G657A2 optical fiber, which has good bending characteristics while ensuring excellent transmission performance.
[0013] In one embodiment of the utility model, the inner sheath is made of low-flammable halogen-free environmentally friendly material. The material design not only protects the cable core but also has the effect of fire prevention and environmental protection.
[0014] The above technical solution of the utility model has the following beneficial effects compared with the prior art:
[0015] The utility model discloses an anti-cicada and earthquake-resistant butterfly-shaped optical cable introduction. The cavity design of the inner sheath and the buffer components in the cavity effectively play the role of shock and pressure resistance. The surface of the sheath layer has no grooves, which effectively prevents insect eggs from damaging the optical cable. The cable can be installed in various environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein
[0017] Figure 1 This is a schematic diagram of the structure of the anti-cicada and earthquake-resistant butterfly-shaped optical cable introduction cable in the preferred embodiment of the utility model;
[0018] Explanation of the reference numerals in the accompanying drawings in the specification: 1. optical fiber; 2. tight cladding; 3. reinforcement; 4. inner protective layer; 5. sheath layer; 6. buffer component; 7. groove one; 8. groove two; 9. tear rope; 10. cavity; 10. fire extinguishing dry powder. DETAILED DESCRIPTION
[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.
[0020] Reference Figure 1 As shown, the utility model describes an anti-cicada and earthquake-resistant butterfly-shaped optical cable, comprising an optical fiber 1, a tight sheath 2, a reinforcement member 3, an inner sheath 4 and a jacket layer 5, wherein the tight sheath 2 is arranged on the outside of the optical fiber 1, the inner sheath 4 is arranged on the outside of the tight sheath 2, the jacket layer 5 is arranged on the outside of the tight sheath 2, a cavity 10 is provided in the inner sheath 4, and a buffer component 6 is provided in the cavity 10.
[0021] Furthermore, it also includes a tight cladding 2, which is arranged on the outside of the optical fiber 1. The tight cladding 2 wraps the optical fiber inside, realizing secondary protection of the optical fiber 1, and the tight cladding 2 is protected by the inner sheath 4. When the optical fiber 1 is bent, the strength of the optical fiber 1 itself can be enhanced to prevent the optical fiber 1 from breaking when it is bent.
[0022] Preferably, a reinforcement member 3 is provided in the inner sheath 4. In this embodiment, the reinforcement members 3 include two, which are symmetrically arranged with the optical fiber 1 as the center to achieve symmetrical support for the inner sheath 4, further enhance the supporting strength of the inner sheath 4, and prevent the optical cable from being deformed when being stretched or squeezed.
[0023] In this embodiment, the reinforcing member is FRP or steel wire. The reinforcing member 3 increases the mechanical properties of the optical cable, so that the optical cable has higher strength and better tensile strength.
[0024] Preferably, a groove 7 is provided in the cavity 10 of the inner sheath 4 on one side facing the optical fiber 1, and the groove 7 is filled with fire extinguishing dry powder 11. By filling the fire extinguishing dry powder 11 at the bottom of the groove 7, the fire extinguishing dry powder 11 can play a role in extinguishing fire when the optical cable encounters an open fire, thereby buying precious time for the cable core to transmit signals.
[0025] In this embodiment, the buffer component 6 is a spring sheet. The buffer component is a spring sheet as a shock-absorbing and buffering measure, which is easy to install and can provide shock-proof and pressure-resistant protection and buffering performance for the cable core when the optical cable is subjected to external pressure.
[0026] Preferably, the outer surface of the inner sheath 4 is provided with a groove 2 8, and a tear rope 9 is provided in the groove 2 8. The tear rope 9 is arranged in the inner sheath 4, which can facilitate the stripping of the optical cable to compensate for the performance of the cable stripping without a groove on the outer surface of the sheath layer 5.
[0027] The sheath layer 5 includes a flame retardant layer and a wear-resistant layer arranged outside the flame retardant layer. In this embodiment, the sheath layer 5 adopts a friction-resistant, environmentally friendly flame retardant thermoplastic polyurethane (TPU) sheath, which has good flame retardant properties, high wear resistance, corrosion resistance, a wide hardness range, smooth reflection, excellent mechanical properties, etc., which is very consistent with the development trend of contemporary environmental protection.
[0028] The optical fiber 1 in this embodiment is a G657A2 optical fiber, which has good bending characteristics while ensuring excellent transmission performance.
[0029] Preferably, the inner sheath 4 is made of low-flammable, halogen-free and environmentally friendly material. The material design of the inner sheath 4 not only protects the cable core but also has the effect of fire prevention and environmental protection.
[0030] The utility model effectively achieves shockproof and pressure-resistant effects through the cavity 10 design of the inner protective layer 4 and the buffer component 6 in the cavity 10, and removes the grooves on the surface of the existing conventional butterfly optical cable, so that cicadas and the like cannot find familiar egg-laying sites, effectively preventing insect eggs from damaging the optical cable, and can adapt to the laying of various environments. In this embodiment, the optical cable adds a tight sheath 2 and a tear rope 9 on the surface of the optical fiber 1, which not only provides multiple protections for the optical fiber 1 but also facilitates the stripping of the optical cable.
[0031] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.
Claims
1. A butterfly-shaped optical cable with anti-vibration function, characterized in that: The invention comprises an optical fiber, a tight cladding, a reinforcement, an inner protective layer and a sheath layer, wherein the tight cladding is arranged on the outside of the optical fiber, the inner protective layer is arranged on the outside of the tight cladding, the sheath layer is arranged on the outside of the inner protective layer, a cavity is arranged in the inner protective layer, and a buffer component is arranged in the cavity.
2. The anti-vibration butterfly-shaped optical cable according to claim 1, characterized in that: A reinforcement piece is arranged inside the inner protective layer.
3. The anti-vibration butterfly-shaped optical cable according to claim 2 is characterized in that: The reinforcement members include two, which are symmetrically arranged with the optical fiber as the center.
4. The anti-vibration butterfly-shaped optical cable according to claim 3 is characterized in that: The reinforcement member is FRP or steel wire.
5. The anti-vibration butterfly-shaped optical cable according to claim 1, characterized in that: A groove one is provided in the cavity of the inner sheath on one side facing the optical fiber, and the groove one is filled with fire extinguishing dry powder.
6. The anti-vibration butterfly-shaped optical cable according to claim 1, characterized in that: The buffer component is a spring sheet.
7. The anti-vibration butterfly-shaped optical cable according to claim 1, characterized in that: A second groove is provided on the outer surface of the inner protective layer, and a tear rope is provided in the second groove.
8. The anti-vibration butterfly-shaped optical cable according to claim 1, characterized in that: The sheath layer includes a flame retardant layer and a wear-resistant layer arranged outside the flame retardant layer.
9. The anti-vibration butterfly-shaped optical cable according to claim 1, characterized in that: The optical fiber is G657A2 optical fiber.
10. The anti-vibration butterfly-shaped optical cable according to claim 1, characterized in that: The inner protective layer is made of low-flammable halogen-free environmentally friendly material.