Ratproof ADSS optical cable

Abstract

The utility model relates to the technical field of optical cables, in particular to a rat-proof ADSS optical cable which comprises a sheath with a containing cavity, a waterproof layer arranged in the containing cavity, a rat-bite-proof assembly and a cable core, the rat-bite-proof assembly is arranged between the cable core and the sheath layer, and the rat-bite-proof assembly comprises a glass fiber reinforced plastic unit and a filling unit. The glass fiber reinforced plastic unit is wound on the periphery of the cable core. According to the ADSS optical cable, the rat-bite-proof assembly with high mechanical performance is arranged, the protection layer with high mechanical strength is provided for the cable core, rats cannot bite the rat-bite-proof assembly, the long-term protection effect on the cable core is achieved, the two waterproof layers greatly enhance the waterproof and moisture-proof performance of the ADSS optical cable, and the transmission stability of the ADSS optical cable is improved.

Description

Technical Field

[0001] This application relates to the field of optical cable technology, and in particular to a rodent-proof ADSS optical cable. Background Technology

[0002] ADSS optical cable is a special type of optical cable used for power communication, providing a fast and economical transmission channel in power communication systems. After being laid, ADSS optical cable is easily gnawed by rodents. Over time, the outer shell of the ADSS optical cable will be chewed open or directly bitten through, seriously endangering the safety of ADSS optical cable use.

[0003] Existing rodent-proofing measures for ADSS optical cables generally involve adding rodent-repellent oil, capsaicin, or other additives. For example, the technical content of a rodent-proof optical cable disclosed in Publication No. CN214623125U includes: a PE sheath and a nylon-coated steel tape from the outside in; a central reinforcing member, several filler ropes, and a cable core are installed inside the nylon-coated steel tape; the inner wall of the nylon-coated steel tape is coated with cable grease; the cable core includes a loose tube and colored optical fibers located inside the loose tube, which is also filled with fiber grease; several trapezoidal grooves are formed on the nylon surface of the nylon-coated steel tape, with the width of the opening of the groove being greater than the width of the bottom; an outer nylon layer is also provided outside the nylon-coated steel tape to fit into the trapezoidal grooves; and a cavity is provided at the bottom of the trapezoidal grooves to accommodate capsaicin. However, these additives are easily affected by environmental factors such as temperature and humidity, and rodent gnawing can cause the additives to be lost, leading to the failure of the rodent-proof function and making it impossible to achieve long-term protection for the ADSS optical cable. Utility Model Content

[0004] In order to improve the technical problem that chemical additives cannot provide long-term protection for ADSS optical cables, this application provides a rodent-proof ADSS optical cable.

[0005] This application provides a rodent-proof ADSS optical cable, which adopts the following technical solution:

[0006] A rodent-proof ADSS optical cable includes a sheath with a receiving cavity, a waterproof layer disposed in the receiving cavity, a rodent-proof component, and a cable core. The rodent-proof component is disposed between the cable core and the sheath layer. The rodent-proof component includes a fiberglass unit and a filling unit, and the fiberglass unit is wound around the outer periphery of the cable core.

[0007] By adopting the above technical solution, the anti-rodent bite assembly includes a fiberglass unit and a filling unit. The fiberglass unit is a lightweight and high-strength material with a hard texture, which can effectively prevent rodents from gnawing on it. The fiberglass unit surrounds the cable core on its inner side, which can provide long-term and effective protection for the cable core. The sheath is used to protect the anti-rodent bite assembly, prevent the anti-rodent bite assembly from wear and damage caused by friction and collision, ensure the integrity of the anti-rodent bite assembly, and improve the service life of the anti-rodent bite assembly.

[0008] In one specific implementation, the fiberglass unit includes multiple units, each of which is a flat strip that passes through the interior of the ADSS optical cable. At least a portion of two adjacent fiberglass units abuts each other, and the multiple fiberglass units are connected end to end to form a polygon. The number of filling units corresponds one-to-one with the number of fiberglass units, and the filling units are disposed in the interval between two adjacent fiberglass units.

[0009] By adopting the above technical solution, the fiberglass unit is set as a flat strip, which is convenient for bundling into cables. At the same time, the flat strip fiberglass unit is easy to separate, saving production materials and reducing production costs. When arranging, multiple fiberglass units are connected end to end to form a polygon. The number is based on the diameter of the cable core. After the fiberglass units are assembled, the gaps are filled with filler units to improve the performance and strength of the rodent-proof component.

[0010] In one specific implementation, the filling unit is a glass fiber strand, which is made of several glass fiber yarns twisted together.

[0011] By adopting the above technical solution, the filling unit is made of glass fiber stranded wire made of glass fiber yarn. The glass fiber stranded wire can increase the overall strength of ADSS optical cable, and can also fill the weak position between two adjacent fiberglass units, increasing the protective effect of the anti-rodent bite component.

[0012] In one specific implementation scheme, the filling unit is one of water-resistant yarn and cable grease.

[0013] By adopting the above technical solutions, the filling unit can also be either water-blocking yarn or cable paste. Water-blocking yarn is used to improve the waterproof and moisture-proof performance of ADSS optical cable, which is conducive to ensuring the stable operation of optical fiber. Cable paste can effectively prevent water and moisture from penetrating into the interior of optical cable, improve the waterproof and moisture-proof effect, and cable paste can also buffer the impact of mechanical forces such as vibration and impact on optical fiber, protecting the stability and performance of optical fiber.

[0014] In one specific implementation, the sheath is made of low-smoke halogen-free polyolefin material, and the outer peripheral wall of the sheath is also covered with a glass fiber wrapping layer.

[0015] By adopting the above technical solution, the sheath made of low-smoke halogen-free polyolefin material has good weather resistance and mechanical properties, improving the service life of the sheath in the natural environment. The glass fiber wrapping layer can further improve the mechanical properties of the sheath, while also providing a protective layer for the sheath and increasing the anti-rodent bite effect.

[0016] In one specific implementation, the waterproof layer has at least two layers, each of which includes a binding layer and a water-blocking layer, and the two waterproof layers are respectively disposed on the outer periphery of the cable core and the outer periphery of the rodent-proof component.

[0017] By adopting the above technical solution, each waterproof layer includes a binding layer and a water-blocking layer, which can provide binding and waterproofing effects respectively. The waterproof layer located on the outer periphery of the cable core is used to tightly bind the cable core into a circular bundle to prevent its displacement, twisting or crossing, while providing waterproof and moisture-proof functions for the cable core. The waterproof layer located on the outer periphery of the rodent-proof component is used to bind and tighten multiple fiberglass units to prevent the fiberglass units from shifting or loosening, and further enhance the waterproof and moisture-proof performance, which is conducive to the stable operation of ADSS optical cable in humid environments.

[0018] In one specific implementation, the cable core includes a central reinforcement, a plurality of optical fiber cores arranged around the central reinforcement, and a filler cord. Each optical fiber core includes a PBT loose tube and an optical fiber placed inside the PBT loose tube. Fiber grease is filled between the optical fiber and the loose tube. The central reinforcement is made of glass fiber reinforced plastic.

[0019] By adopting the above technical solution, multiple optical fiber cores and at least one filler rope are arranged around the central reinforcing member to form a cable core for communication. The central reinforcing member is made of glass fiber reinforced plastic, which is lightweight and high-strength. Multiple optical fiber cores increase bandwidth and improve transmission efficiency.

[0020] In one specific implementation, the cable core is further provided with a filler, which is a water-blocking yarn.

[0021] By adopting the above technical solution, water-blocking yarn is filled into the cable core space outside the optical fiber core, filler rope and central reinforcement, which further improves the waterproof and moisture-proof performance of the cable core.

[0022] In summary, this application includes at least one of the following beneficial effects:

[0023] 1. The rodent-proof component of this application is composed of fiberglass units and fiberglass yarn strands, which increases mechanical properties and meets the characteristics of being metal-free. Rodents cannot bite through the rodent-proof component, thus achieving long-term protection for the cable core.

[0024] 2. The fiberglass unit of this application is designed as a flat strip, which is convenient for bundling into cables. Compared with round pieces, it is more conducive to separation, saving production materials and reducing production costs.

[0025] 3. This application provides at least two waterproof layers to secure and fix the cable core and the rodent-proof component, and to provide waterproof and moisture-proof effects. Combined with the filler material of the filling unit, it greatly enhances the waterproof and moisture-proof performance of the ADSS optical cable and improves the transmission stability of the ADSS optical cable. Attached Figure Description

[0026] Figure 1 This is a cross-sectional structural diagram of an embodiment of this application.

[0027] Figure 2 This is an exploded structural diagram of an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Sheath; 11. Fiberglass wrapping layer; 2. Waterproof layer; 21. First waterproof layer; 22. Second waterproof layer; 3. Anti-rodent component; 31. Fiberglass unit; 32. Filler unit; 4. Cable core; 40. Filler material; 41. Central reinforcement; 42. Optical fiber core; 43. Filler rope; 5. Optical fiber; 6. Top filling cavity; 7. Bottom filling cavity. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] This application discloses a rodent-proof ADSS optical cable. (Refer to...) Figure 1 , Figure 2 As shown, the rodent-proof ADSS optical cable consists of, from the outside in, a fiberglass wrapping layer 11, a sheath 1, a waterproof layer 2, a rodent-proof component 3, and a cable core 4. The fiberglass wrapping layer 11 covers the outer periphery of the sheath 1, providing a protective layer. It possesses excellent mechanical properties and high hardness, effectively resisting rodent gnawing. Even if the fiberglass wrapping layer 11 is damaged, the exposed fiberglass will cause a pricking sensation in the rodent's mouth, reducing its urge to bite. The sheath 1 uses... Made of low-smoke halogen-free polyolefin material, it has good weather resistance and mechanical properties, providing an excellent operating environment for optical cables, and has good insulation properties, improving the safety of rodent-proof ADSS optical cables; the waterproof layer 2 has at least two layers, which respectively cover the rodent-proof component 3 and the cable core 4, serving to fasten and protect against water and moisture; the rodent-proof component 3 includes a fiberglass unit 31 and a filling unit 32. The fiberglass material is hard and can effectively prevent rodents from gnawing. The rodent-proof component 3 surrounds the cable core 4 on its inner side. The cable core 4 is equipped with optical fibers 5 for communication.

[0031] Reference Figure 1 , Figure 2As shown, the waterproof layer 2 includes a first waterproof layer 21 and a second waterproof layer 22. Each waterproof layer 2 consists of a binding layer and a water-blocking layer. The first waterproof layer 21 covers the outer periphery of the rodent-proof component 3. When in use, after the rodent-proof component 3 is assembled, the binding layer is wrapped around the rodent-proof component 3 to cover the rodent-proof component 3 and tie it tightly. Then, the water-blocking layer is wrapped around the outer periphery of the binding layer. The second waterproof layer 22 is tied to the outer periphery of the cable core 4 in the same way. The waterproof layer 2 is used to provide a fixed and tight binding as well as waterproof and moisture-proof functions.

[0032] Reference Figure 1 , Figure 2 As shown, the rodent-proof component 3 includes fiberglass units 31 and filling units 32. Multiple fiberglass units 31 are symmetrically arranged. Each fiberglass unit 31 is flat and strip-shaped. At least a portion of two adjacent fiberglass units 31 abuts each other, and multiple fiberglass units 31 are connected end to end to form a polygon. After the flat and strip-shaped fiberglass units 31 are assembled, there will be some space between two adjacent fiberglass units 31, as well as at the top and bottom. Based on this, the filling unit 32 is placed in the space between two adjacent fiberglass units 31. The filling unit 32 is a fiberglass strand made of twisted fiberglass yarn. The filling unit 32 can fill the weak position between two adjacent fiberglass units 31, further improving the strength of the rodent-proof component 3. The top and bottom spaces are respectively the top filling cavity 6 and the bottom filling cavity 7, which are filled with water-resistant yarn.

[0033] In another embodiment, the filling unit 32 is either water-blocking yarn or cable paste. When the filling unit 32 is glass fiber stranded wire, it can increase the mechanical properties and protective effect of the rodent-proof component 3. When the filling unit 32 is water-blocking yarn or cable paste, it can increase the waterproof and moisture-proof effect and further improve the operating environment of the rodent-proof ADSS optical cable.

[0034] Reference Figure 1 , Figure 2 As shown, the cable core 4 includes a central reinforcing member 41, multiple optical fiber cores 42 arranged around the central reinforcing member 41, and a filler rope 43. The central reinforcing member 41 is made of glass fiber reinforced plastic, which has the effect of being lightweight and high-strength. The optical fiber cores 42 and the filler rope 43 are arranged around the central reinforcing member 41. Each optical fiber core 42 consists of a PBT loose tube and an optical fiber 5 placed inside the PBT loose tube. Multiple optical fibers 5 are arranged. The gap between the optical fiber 5 and the PBT loose tube is filled with fiber grease. Multiple optical fiber cores 42 increase the bandwidth and increase the transmission efficiency. The filler rope 43 plays a role in absorbing water and preventing moisture. In the cable core 4, the space outside the central reinforcing member 41, the optical fiber cores 42, and the filler rope 43 is filled with a filler 40, which is a water-blocking yarn.

[0035] The implementation principle of a rodent-proof ADSS optical cable in this application embodiment is as follows:

[0036] The rodent-proof component 3, composed of multiple fiberglass units 31 and corresponding filling units 32, is lightweight and high-strength. Combined with the fiberglass wrapping layer 11 and the sheath 1, it forms multiple protective measures. Even when the outer fiberglass wrapping layer 11 and the sheath 1 are damaged or bitten through, the rodent-proof component 3 can still protect the cable core 4, providing a good operating environment for the communication of the cable core 4 and achieving long-term protection for the cable core 4.

[0037] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be included within the scope of protection of this application.

Claims

1. A rodent-proof ADSS optical cable, comprising a sheath (1) with a receiving cavity, a waterproof layer (2) disposed in the receiving cavity, a rodent-proof component (3), and a cable core (4), characterized in that: The anti-rodent bite assembly (3) is disposed between the cable core (4) and the sheath (1) layer. The anti-rodent bite assembly (3) includes a fiberglass unit (31) and a filling unit (32). The fiberglass unit (31) is wrapped around the outer periphery of the cable core (4).

2. The rodent-proof ADSS optical cable according to claim 1, characterized in that: The fiberglass unit (31) includes multiple units, each of which is a flat strip. At least a portion of two adjacent fiberglass units (31) abuts each other. Multiple fiberglass units (31) are connected end to end to form a polygon. The number of filling units (32) corresponds one-to-one with the number of fiberglass units (31). The filling units (32) are arranged in the interval between two adjacent fiberglass units (31).

3. The rodent-proof ADSS optical cable according to claim 2, characterized in that: The filling unit (32) is a glass fiber strand, which is made of several glass fiber yarns twisted together.

4. The rodent-proof ADSS optical cable according to claim 2, characterized in that: The filling unit (32) is one of water-blocking yarn and cable paste.

5. The rodent-proof ADSS optical cable according to claim 1, characterized in that: The sheath (1) is made of low-smoke halogen-free polyolefin material, and the outer peripheral wall of the sheath (1) is also covered with a glass fiber wrapping layer (11).

6. The rodent-proof ADSS optical cable according to claim 1, characterized in that: The waterproof layer (2) has at least two layers, each of which includes a binding layer and a water-blocking layer. The two waterproof layers (2) are respectively disposed on the outer periphery of the cable core (4) and the outer periphery of the anti-rodent bite component (3).

7. The rodent-proof ADSS optical cable according to claim 6, characterized in that: The cable core (4) includes a central reinforcing member (41), multiple optical fiber cores (42) arranged around the central reinforcing member (41), and a filler rope (43). Each optical fiber core (42) includes a PBT loose tube and an optical fiber (5) placed inside the PBT loose tube. The space between the optical fiber (5) and the loose tube is filled with fiber grease. The central reinforcing member (41) is made of glass fiber reinforced plastic.

8. The rodent-proof ADSS optical cable according to claim 7, characterized in that: The cable core (4) is also provided with a filler (40), which is a water-blocking yarn.

Images