Chemical corrosion resistant optical cable tearing rope filling structure

Abstract

The utility model relates to the technical field of communication optical cables, in particular to a chemical-corrosion-resistant optical cable tearing rope filling structure, which comprises a central reinforcing piece, a protective sleeve coated outside the central reinforcing piece, optical fiber bundles distributed on the outer side of the central reinforcing piece on the inner side of the protective sleeve in an annular array manner, a filling rope and a protective sleeve, the protective sleeve is arranged on the outer side of the central reinforcer; wherein the cross section of the protective sleeve is designed to be of a cross-shaped structure, and four obtuse angles on the outer side of the protective sleeve correspond to the filling ropes respectively; the filling ropes are arranged on the opposite sides of the adjacent optical fiber bundles; wherein the filling rope is designed by adopting a polypropylene hollow pipe material, the filling rope is not filled, and one side, opposite to the optical fiber bundle and the protective sleeve, of the filling rope is filled with a cable core filler. According to the utility model, the tensile performance of the optical cable during laying is improved, and the problem that internal optical fibers are easy to break when the optical cable is stressed and pulled is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of communication optical cables, and specifically relates to an anti-chemical corrosion optical cable tearing rope filling structure. Background Technique

[0002] A communication optical cable is a communication line that uses optical fibers as a transmission medium. It consists of multiple optical fibers arranged and combined into a cable core according to a specific structure and is wrapped by a sheath. Some types of optical cables may also include an additional outer protective layer.

[0003] After a large number of retrievals, the publication number is CN217085363U, which discloses an anti-biting underground communication optical cable, including an installation sleeve. A plurality of rubber plates are installed inside the installation sleeve, a plurality of plastic sleeves are sleeved on the rubber plates, a plurality of optical fibers are installed inside the plastic sleeves, a filler is placed inside the plastic sleeves, an insulating layer is provided on the installation sleeve, a soft rubber sheath is sleeved on the insulating layer, and a protection mechanism is installed on the soft rubber sheath.

[0004] When a mouse or reptile bites the optical cable, the drug inside the rubber capsule can drive away the mouse, and it can play a good role in protecting the optical fibers inside the optical cable during use. However, when the optical cable is buried deeply, sometimes a certain degree of force needs to be applied to pull the optical cable. During this process, the overall structure of the optical cable will be deformed to a certain extent, resulting in the situation that the optical fibers inside the optical cable are broken under tension. Therefore, an anti-chemical corrosion optical cable tearing rope filling structure is needed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anti-chemical corrosion optical cable tearing rope filling structure, which has the advantage of improving the tensile performance of the optical cable during laying, and solves the problem that the internal optical fibers of the optical cable are easily broken when subjected to tensile force.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an anti-chemical corrosion optical cable tearing rope filling structure, including a central strengthening member, a protective sleeve is coated on the outside of the central strengthening member, and optical fiber bundles are distributed in a circular array on the outside of the central strengthening member inside the protective sleeve. It also includes a filling rope and a protective sleeve;

[0007] The protective sleeve is arranged on the outside of the central strengthening member;

[0008] Among them, the cross-section of the protective sleeve adopts a cross-shaped structure design, and the four obtuse angles on the outside of the protective sleeve correspond to the filling ropes respectively;

[0009] The filling rope is arranged on the opposite side of adjacent optical fiber bundles;

[0010] Among them, the filling rope is designed with polypropylene hollow tube material, the inside of the filling rope is not filled, and the side of the filling rope opposite to the optical fiber bundle and the protective sleeve is filled with cable core filler.

[0011] Preferably, the outer wall of the central reinforcement member contacts the four obtuse angles on the inner side of the protective sleeve but is not fixedly connected, and the central reinforcement member is designed with polyester aramid yarn. In the design, the outer wall of the central reinforcement member contacts the four obtuse angles on the inner side of the protective sleeve, but is not fixedly connected to provide the necessary flexibility and buffer protection, and the central reinforcement member is made of polyester aramid yarn, which is known for its high strength and chemical corrosion resistance, providing a solid core support for the optical cable.

[0012] Preferably, a shielding layer is provided on the inner side of the protective sleeve, and the shielding layer is designed with a plastic-coated aluminum tape material. The outer side of the shielding layer is provided with anti-skid patterns that are different from the penetration direction of the central reinforcement, and the shielding layer is wrapped with yarn on the side opposite to the cable core filler. In the design, the inner side of the protective sleeve is equipped with a shielding layer, and the material of the plastic-coated aluminum tape is used, which not only provides excellent electromagnetic compatibility, but also enhances the mechanical strength of the optical cable. The anti-skid pattern design on the outer side of the shielding layer is different from the penetration direction of the central reinforcement, which increases the friction resistance with the external environment. The shielding layer is wrapped with yarn on the side opposite to the cable core filler, which further enhances the stability and integrity of the structure.

[0013] Preferably, the outer side of the optical fiber bundle is covered with a sleeve, and the inner side of the sleeve is filled with an inner core filler, and the inner core filler is designed with aramid fiber material, and adjacent optical fibers in the optical fiber bundle are separated by the inner core filler. In the design, the inner side of the sleeve covered with the outer side of the optical fiber bundle is filled with an inner core filler made of aramid fiber material. This design not only separates adjacent optical fibers in the optical fiber bundle, but also provides additional tensile strength and protection, ensuring that the optical fiber can maintain stable performance in various environments.

[0014] Preferably, the protective sleeve is designed with a soft rubber material, and the four sharp corners inside the protective sleeve are not in contact with the central reinforcement. The protective sleeve is designed with a soft rubber material, which provides excellent elasticity and chemical corrosion resistance. The design of the four sharp corners inside the protective sleeve cleverly avoids contact with the central reinforcement, thereby reducing internal stress concentration and improving the durability of the optical cable.

[0015] Preferably, the cross section of the filling rope adopts an elliptical structure design, and the side of the filling rope away from the protective sleeve contacts the inner wall of the shielding layer. The cross section of the filling rope adopts an elliptical structure design, which not only optimizes the space utilization, but also enhances the tensile strength of the optical cable. The side of the filling rope away from the protective sleeve contacts the inner wall of the shielding layer. This design helps to evenly distribute the force and improve the mechanical stability of the optical cable.

[0016] Preferably, polyethylene is brushed on the connection between the outer wall of the cable core filler and the shielding layer, and a special grease is brushed on the connection between the inner side of the cable core filler and the protective sleeve. The special grease includes mineral oil and preservatives. In the design, polyethylene is specially brushed on the connection between the outer wall of the cable core filler and the shielding layer, enhancing the sealing and abrasion resistance of the connection point. A special grease is brushed on the connection between the inner side of the cable core filler and the protective sleeve. This grease contains mineral oil and preservatives, providing additional chemical protection and long-term stability for the optical cable.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] In the present utility model, the central strengthening member inside is the core support of the optical cable and is made of high-strength material, thereby improving the overall tensile strength and structural stability of the optical cable. The protective sleeve is arranged on the outermost side of the optical cable, playing a preliminary protective role to prevent external factors from damaging the internal structure. The optical fiber bundles are distributed around the central strengthening member in a circular array, and the filling ropes are arranged between adjacent optical fiber bundles and are made of polypropylene hollow tubes, which are light and have a certain elasticity, and can play a buffering role when stressed. The cross-shaped design of the protective sleeve helps to disperse the lateral force in the direction of the filling rope, reducing the lateral tension received by the optical fiber bundles. The cable core filler fills the gaps between the filling ropes, optical fiber bundles and the protective sleeve, further providing buffering protection, absorbing and dispersing forces, and preventing the optical fibers from breaking due to pulling. At the same time, the central strengthening member is located inside the protective sleeve, which can allow a certain degree of relative movement during the stretching process, reducing the stress concentration on the optical fibers, achieving the effect of improving the tensile performance of the optical cable during laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view structural schematic diagram of the present utility model;

[0020] Figure 2 is the filling structure schematic diagram of the cable core filler of the present utility model;

[0021] Figure 3 is the installation structure schematic diagram of the filling rope of the present utility model;

[0022] Figure 4 is the top view structural schematic diagram of the present utility model.

[0023] In the figure: 1, protective sleeve; 2, shielding layer; 3, cable core filler; 4, filling rope; 5, optical fiber bundle; 6, central strengthening member; 7, protective sleeve; 8, sleeve; 9, inner core filler. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, an embodiment provided by the present utility model: an anti-chemical corrosion optical cable tearing rope filling structure, which includes a central strengthening member 6, a protective sleeve 1 is coated on the outside of the central strengthening member 6, and optical fiber bundles 5 are distributed in a circular array on the outside of the central strengthening member 6 inside the protective sleeve 1. It also includes a filling rope 4 and a protective sleeve 7;

[0027] Specifically, the central strengthening member 6 serves as the core support of the optical cable and is made of high-strength materials, thereby improving the overall tensile strength and structural stability of the optical cable. The protective sleeve 1 is arranged on the outermost side of the optical cable to play a preliminary protection role and prevent external factors from damaging the internal structure. The optical fiber bundles 5 are distributed around the central strengthening member 6 in a circular array, and the filling rope 4 is arranged between adjacent optical fiber bundles 5 and is made of polypropylene hollow tube material, which is light and has a certain elasticity, and can play a buffering role when stressed. The cross-shaped design of the protective sleeve 7 helps to disperse the lateral force in the direction of the filling rope 4, reducing the lateral tension received by the optical fiber bundles 5. The core filler 3 is filled in the gaps between the filling rope 4, the optical fiber bundles 5 and the protective sleeve 7 to further provide buffering protection, absorb and disperse forces, and prevent the optical fiber from breaking due to pulling. At the same time, the central strengthening member 6 is located inside the protective sleeve 7, so that a certain degree of relative movement is allowed during the stretching process, reducing the stress concentration on the optical fiber, and achieving the effect of improving the tensile performance of the optical cable during laying.

[0028] Embodiment 2

[0029] In order to improve the lateral force that the optical cable can withstand, as Figure 2 and Figure 3 shown, in this embodiment, the outer wall of the central strengthening member 6 contacts but is not fixedly connected to the four obtuse angles on the inner side of the protective sleeve 7, and the central strengthening member 6 is designed with polyester aramid fiber material. In the design, the outer wall of the central strengthening member 6 contacts the four obtuse angles on the inner side of the protective sleeve 7, but remains non-fixedly connected to provide the necessary flexibility and buffering protection, and the central strengthening member 6 is made of polyester aramid fiber material, which is known for its high strength and chemical corrosion resistance, providing a solid core support for the optical cable.

[0030] Furthermore, a shielding layer 2 is provided inside the protective sheath 1. The shielding layer 2 is designed with a coated aluminum tape material. Anti-slip patterns are provided on the outer side of the shielding layer 2 in a direction different from the penetration direction of the central strengthening member 6. A binding yarn is wrapped around the side of the shielding layer 2 opposite to the cable core filler 3. In the design, the shielding layer 2 is equipped inside the protective sheath 1 and made of coated aluminum tape material, which not only provides excellent electromagnetic compatibility but also enhances the mechanical strength of the optical cable. The anti-slip pattern design on the outer side of the shielding layer 2 forms a difference from the penetration direction of the central strengthening member 6, increasing the frictional resistance with the external environment. A binding yarn is wrapped around the side of the shielding layer 2 opposite to the cable core filler 3, further enhancing the structural stability and integrity.

[0031] Furthermore, a sleeve 8 is sleeved outside the optical fiber bundle 5. The inside of the sleeve 8 is filled with an inner core filler 9. The inner core filler 9 is designed with an aramid fiber material. Adjacent optical fibers in the optical fiber bundle 5 are separated by the inner core filler 9. In the design, the inside of the sleeve 8 sleeved outside the optical fiber bundle 5 is filled with the aramid fiber material inner core filler 9. This design not only separates adjacent optical fibers in the optical fiber bundle 5 but also provides additional tensile strength and protection, ensuring that the optical fibers can maintain stable performance in various environments.

[0032] Furthermore, the protective sleeve 7 is designed with a soft rubber material. None of the four acute angles inside the protective sleeve 7 are in contact with the central strengthening member 6. In the design, the protective sleeve 7 is made of soft rubber material, providing excellent elasticity and chemical corrosion resistance. The design of the four acute angles inside the protective sleeve 7 cleverly avoids contact with the central strengthening member 6, thereby reducing internal stress concentration and improving the durability of the optical cable.

[0033] Furthermore, the cross-section of the filling cord 4 is designed with an oval structure. The side of the filling cord 4 facing away from the protective sleeve 7 is in contact with the inner wall of the shielding layer 2. In the design, the cross-section of the filling cord 4 is designed with an oval structure, which not only optimizes the space utilization rate but also enhances the tensile strength of the optical cable. The side of the filling cord 4 facing away from the protective sleeve 7 is in contact with the inner wall of the shielding layer 2, and this design helps to evenly distribute the force and improve the mechanical stability of the optical cable.

[0034] Embodiment Three

[0035] To improve the corrosion resistance of the optical cable, as Figure 1 and Figure 4 shown, in this embodiment, polyethylene is brush-coated at the connection between the outer wall of the cable core filler 3 and the shielding layer 2, and a special grease is brush-coated at the connection between the inner side of the cable core filler 3 and the protective sleeve 7. The special grease includes mineral oil and a preservative. In the design, polyethylene is specifically brush-coated at the connection between the outer wall of the cable core filler 3 and the shielding layer 2, enhancing the sealing and wear resistance of the connection point. A special grease is brush-coated at the connection between the inner side of the cable core filler 3 and the protective sleeve 7. This grease contains mineral oil and a preservative, providing additional chemical protection and long-term stability for the optical cable.

[0036] When the utility model is in use, a central strengthening member 6 is made of polyester aramid fiber material, and its required chemical corrosion resistance is ensured. A protective sleeve 7 is installed outside the central strengthening member 6, and the cross-section of the protective sleeve 7 is designed with a cross-shaped structure, and the four acute angles inside the protective sleeve 7 do not contact the central strengthening member 6. The optical fiber bundles 5 are distributed in an annular array outside the central strengthening member 6, and a sleeve 8 is sleeved outside the optical fiber bundles 5. An inner core filler 9 made of aramid fiber material is filled inside the sleeve 8 to separate adjacent optical fibers. The filling rope 4 is arranged on the opposite side of adjacent optical fiber bundles 5, with an elliptical cross-section design and made of polypropylene hollow tube material, and the inside of the filling rope 4 is not filled. A protective sleeve 1 is coated outside the central strengthening member 6, a shielding layer 2 is arranged inside the protective sleeve 1. The shielding layer 2 is made of coated aluminum tape material, and anti-slip patterns are designed on the outside of the shielding layer 2. A cable core filler 3 is filled on the side opposite to the central strengthening member 6 of the shielding layer 2, and polyethylene is painted at the connection between the cable core filler 3 and the shielding layer 2. A special grease is painted at the connection between the inside of the cable core filler 3 and the protective sleeve 7. The special grease is composed of mineral oil and preservatives to provide additional protection. After the arrangement and filling of all components are completed, the final assembly and fixation are carried out to ensure the correct positions of all components and meet the design requirements, and then necessary performance tests and inspections are carried out to ensure the mechanical properties and chemical stability of the optical cable.

[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A chemical corrosion resistant optical cable tear rope filling structure, comprising a central reinforcement member (6), the outer side of the central reinforcement member (6) is covered with a protective sleeve (1), and the outer side of the central reinforcement member (6) inside the protective sleeve (1) is provided with optical fiber bundles (5) in a circular array, characterized in that: Also includes: A protective sleeve (7) is arranged outside the central reinforcement member (6); The cross section of the protective sleeve (7) is designed in a cross-shaped structure, and the four obtuse angles on the outer side of the protective sleeve (7) correspond to the filling rope (4) respectively; A filling rope (4) is arranged on an opposite side of an adjacent optical fiber bundle (5); The filling rope (4) is designed with a polypropylene hollow tube material, the interior of the filling rope (4) is not filled, and the side of the filling rope (4) opposite to the optical fiber bundle (5) and the protective sleeve (7) is filled with a cable core filler (3).

2. The chemical corrosion resistant optical cable tear cord filling structure according to claim 1, characterized in that: The outer wall of the central reinforcement member (6) contacts the four obtuse angles on the inner side of the protective sleeve (7) but is not fixedly connected. The central reinforcement member (6) is designed with polyester aramid yarn material.

3. The chemical corrosion resistant optical cable tear cord filling structure according to claim 1, characterized in that: A shielding layer (2) is provided on the inner side of the protective sleeve (1), the shielding layer (2) is designed with a plastic-coated aluminum tape material, an anti-slip pattern is provided on the outer side of the shielding layer (2) in a direction different from that of the central reinforcement member (6), and a binding yarn is wrapped around the side of the shielding layer (2) opposite to the cable core filler (3).

4. The chemical corrosion resistant optical cable tear cord filling structure according to claim 1, characterized in that: The outer side of the optical fiber bundle (5) is sleeved with a sleeve (8), and the inner side of the sleeve (8) is filled with an inner core filler (9). The inner core filler (9) is designed with aramid fiber material, and adjacent optical fibers in the optical fiber bundle (5) are separated by the inner core filler (9).

5. The chemical corrosion resistant optical cable tear cord filling structure according to claim 1, characterized in that: The protective sleeve (7) is made of soft rubber material, and the four acute corners inside the protective sleeve (7) are not in contact with the central reinforcement member (6).

6. The chemical corrosion resistant optical cable tear cord filling structure according to claim 1, characterized in that: The cross section of the filling rope (4) is designed to be elliptical in shape, and the side of the filling rope (4) facing away from the protective sleeve (7) is in contact with the inner wall of the shielding layer (2).

7. The chemical corrosion resistant optical cable tear cord filling structure according to claim 1, characterized in that: The connection between the outer wall of the cable core filler (3) and the shielding layer (2) is coated with polyethylene, and the connection between the inner side of the cable core filler (3) and the protective sleeve (7) is coated with a special ointment, which includes mineral oil and a preservative.

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