Impact resistant composite cable

Abstract

The utility model discloses a kind of impact-resistant composite cable, it is related to composite cable field, solve the problem that the impact-resistant effect of existing composite cable is limited while overall conduction effect is limited, using the following scheme: including outer sleeve component and its inside annular distribution four groups of optical fiber tube groups, and the inside of outer sleeve component is also provided with the outer filling layer and reinforcing core column located the outside of each group of optical fiber tube group;The inside of the optical fiber tube group is equipped with three groups of optical fiber, and optical fiber is helically distributed in the inside of optical fiber tube group;The impact-resistant composite cable, by the setting of outer sleeve component and its inside each group of optical fiber tube group, each group of optical fiber tube group can be evenly laid, and the setting of optical fiber can be further evenly laid in the inside of optical fiber tube group, and the setting of each layer outside outer sleeve component and optical fiber tube group can guarantee shielding effect and protection effect and impact resistance.

Description

Technical Field

[0001] This utility model relates to the field of composite cable technology, specifically to an impact-resistant composite cable. Background Technology

[0002] Cables are wires made of one or more mutually insulated conductors and an outer insulating protective layer, laid underground, in the air, etc.

[0003] A search revealed that patent application number 202420627047.X discloses an impact-resistant composite cable, comprising a cable sheath containing multiple cable conductors. The cable sheath includes a flame-retardant layer, a buffer layer bonded to the outside of the flame-retardant layer, and a filler layer inside the cable sheath. Insulation layers are fitted onto the outer sides of the multiple cable conductors. The buffer layer is made of a mixture of polyurethane and silicone, and has a wear-resistant coating on its outer side. The filler layer is made of polytetrafluoroethylene (PTFE), and the flame-retardant layer is made of polyvinyl chloride (PVC). This invention not only prevents the internal conductors of the cable from deforming and being damaged due to excessive impact, improving the cable's impact resistance, but also prevents the cable from burning and causing damage, thus improving its flame-retardant performance. Furthermore, it shields the cable conductors from external interference, resulting in more stable cable operation and improved cable performance.

[0004] The aforementioned application documents disclose the specific structure of the corresponding composite cable, but the overall impact resistance of the cable is limited, and its overall practicality is limited. Furthermore, the position and structure of the inner cable are relatively simple, the composite degree of the cable is low, and its stability is limited.

[0005] Therefore, we propose an impact-resistant composite cable. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an impact-resistant composite cable, which solves the problems of limited impact resistance and limited overall conduction performance of existing composite cables.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: an impact-resistant composite cable, comprising an outer jacket assembly and four groups of optical fiber tubes arranged in a ring on its inner side, and an outer filling layer and a reinforcing core post located on the outer side of each group of optical fiber tubes on the inner side of the outer jacket assembly.

[0008] The inner side of the fiber optic tube assembly is fitted with three sets of optical fibers, which are arranged in a spiral pattern on the inner side of the fiber optic tube assembly.

[0009] As a preferred embodiment of this utility model, the outer casing assembly is provided with a PE sheath, a plastic-coated steel strip layer and an outer shielding layer in sequence from the outside to the inside, and they are bonded together with hot melt adhesive.

[0010] The PE sheath protects the internal components from the outside, ensuring wear resistance and long service life. The plastic-coated steel strip layer provides insulation and further enhances protection. Its material also provides impact resistance, preventing deformation and damage. The outer shielding layer prevents adjacent composite cables from interfering with each other and affecting conduction.

[0011] As a preferred embodiment of the present invention, the inner side of the outer jacket assembly is glued with an outer filling layer by hot melt adhesive. The outer filling layer has a groove that matches the position and specifications of the optical fiber tube group, and a reinforcing core is fitted in the center of the outer filling layer.

[0012] The outer filling layer can limit the assembly of each group of optical fiber tubes and squeeze them together to ensure the transmission stability of the optical fiber tubes.

[0013] As a preferred embodiment of the present invention, the optical fiber tube assembly includes a flame-retardant layer and an inner shielding layer bonded together by hot melt adhesive, and an inner filling layer is also bonded to the inner sidewall of the inner shielding layer.

[0014] The flame-retardant layer ensures the flame-retardant effect and prevents the inner optical fiber from overheating and spontaneously combusting, while the inner shielding layer prevents adjacent optical fiber tubes from interfering with each other's conduction.

[0015] As a preferred embodiment of this utility model, a spiral-shaped optical fiber groove is formed in the inner filling layer, and the optical fiber is filled in the inner side of the optical fiber groove in a spiral shape.

[0016] The inner filling layer ensures the stability of the optical fiber layout and further guarantees the conduction effect of each group of optical fiber tubes and the optical fibers inside the outer jacket assembly.

[0017] This utility model provides an impact-resistant composite cable. It has the following beneficial effects:

[0018] This impact-resistant composite cable, through the arrangement of the outer jacket assembly and the various groups of optical fiber tubes on its inner side, can uniformly lay out each group of optical fiber tubes. The arrangement of optical fibers can further uniformly lay out on the inner side of the optical fiber tube groups. The arrangement of the outer jacket assembly and the various layers on the outer side of the optical fiber tube groups can ensure the shielding effect, protection effect and impact resistance, thus solving the problem that the existing composite cables have limited impact resistance and limited overall conduction effect. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal sectional surface of the present invention;

[0021] Figure 3 This is a schematic diagram of the outer casing assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the optical fiber tube assembly of this utility model.

[0023] In the diagram: 1. Outer jacket assembly; 11. PE sheath; 12. Plastic-coated steel strip layer; 13. Outer shielding layer; 2. Outer filling layer; 3. Reinforcing core; 4. Fiber optic tube assembly; 41. Flame retardant layer; 42. Inner shielding layer; 43. Inner filling layer; 5. Optical fiber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an impact-resistant composite cable, including an outer jacket assembly 1 and four groups of optical fiber tubes 4 arranged in a ring on its inner side, and an outer filling layer 2 and a reinforcing core 3 located on the outer side of each group of optical fiber tubes 4 are provided on the inner side of the outer jacket assembly 1; three groups of optical fibers 5 are installed on the inner side of the optical fiber tube groups 4, and the optical fibers 5 are arranged in a spiral shape on the inner side of the optical fiber tube groups 4.

[0026] The impact-resistant composite cable, through the arrangement of the outer jacket assembly 1 and the various groups of optical fiber tubes 4 on its inner side, can uniformly lay each group of optical fiber tubes 4. The arrangement of optical fiber 5 can further uniformly lay on the inner side of the optical fiber tube groups 4. The arrangement of the outer jacket assembly 1 and the various layers on the outer side of the optical fiber tube groups 4 can ensure the shielding effect, protection effect and impact resistance, thus solving the problem that the existing composite cables have limited impact resistance and limited overall conduction effect.

[0027] Example 2:

[0028] The outer casing assembly 1 is provided with a PE sheath 11, a plastic-coated steel tape layer 12, and an outer shielding layer 13 in sequence from the outside to the inside, and they are bonded together with hot melt adhesive. The PE sheath 11 can protect the components inside from the outside, ensuring wear resistance and continuous service life. The plastic-coated steel tape layer 12 can ensure its isolation effect, further ensuring its protective effect. At the same time, its material can ensure a certain impact resistance when it is subjected to impact, avoiding deformation and damage. The outer shielding layer 13 can prevent adjacent composite cables from affecting each other and thus affecting the conduction effect.

[0029] The inner side of the outer casing assembly 1 is glued with an outer filling layer 2 by hot melt adhesive. The outer filling layer 2 has a tube groove that matches the position and specifications of the fiber optic tube group 4, and a reinforcing core post 3 is fitted in the center of the outer filling layer 2. The outer filling layer 2 can limit the assembly of each fiber optic tube group 4 and squeeze the assembly of each fiber optic tube group 4 to ensure the conduction stability of the fiber optic tube group 4.

[0030] The fiber optic tube assembly 4 includes a flame-retardant layer 41 and an inner shielding layer 42 bonded together with hot melt adhesive, and an inner filling layer 43 is also bonded to the inner sidewall of the inner shielding layer 42. The flame-retardant layer 41 ensures the flame-retardant effect and prevents the inner optical fiber 5 from overheating and spontaneously combusting, while the inner shielding layer 42 prevents adjacent fiber optic tube assemblies 4 from interfering with each other's conduction.

[0031] The inner filling layer 43 has a spiral-shaped fiber groove, and the optical fiber 5 is filled in the inner side of the fiber groove in a spiral shape. The inner filling layer 43 can ensure the stability of the optical fiber 5 during its layout, and further ensure the conduction effect of each group of optical fiber tubes 4 and the optical fiber 5 inside the outer jacket assembly 1.

[0032] The working principle and usage process of this utility model are as follows: each group of optical fibers 5 is spirally assembled in the optical fiber tube group 4, and then each group of optical fiber tube group 4 and the outer filling layer 2 are filled into the inner side of the outer jacket assembly 1. The outer shielding layer 13 in the outer jacket assembly 1 ensures the wear resistance effect, the plastic-coated steel tape layer 12 ensures the impact resistance, and the setting of the outer shielding layer 13 and the inner shielding layer 42 can avoid the mutual interference of conduction between the optical fibers 5 and the optical fiber tube group 4. The setting of the flame retardant layer 41 can ensure the flame retardant effect, and ensure the overall impact resistance and conduction effect of the composite cable.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An impact-resistant composite cable, characterized in that: It includes an outer jacket assembly (1) and four groups of optical fiber tubes (4) arranged in a ring on its inner side. The inner side of the outer jacket assembly (1) is also provided with an outer filling layer (2) and a reinforcing core column (3) located outside each group of optical fiber tubes (4). The inner side of the optical fiber tube assembly (4) is fitted with three sets of optical fibers (5), and the optical fibers (5) are spirally distributed on the inner side of the optical fiber tube assembly (4).

2. The impact-resistant composite cable according to claim 1, characterized in that: The outer casing assembly (1) is provided with a PE sheath (11), a plastic-coated steel strip layer (12) and an outer shielding layer (13) in sequence from the outside to the inside, and they are bonded to each other by hot melt adhesive.

3. The impact-resistant composite cable according to claim 1, characterized in that: The inner side of the outer jacket assembly (1) is glued with an outer filling layer (2) by hot melt adhesive. The outer filling layer (2) has a groove that matches the position and specifications of the optical fiber tube group (4), and a reinforcing core column (3) is fitted in the center of the outer filling layer (2).

4. The impact-resistant composite cable according to claim 1, characterized in that: The fiber optic tube assembly (4) includes a flame-retardant layer (41) and an inner shielding layer (42) bonded together with hot melt adhesive, and an inner filling layer (43) is also bonded to the inner sidewall of the inner shielding layer (42).

5. The impact-resistant composite cable according to claim 4, characterized in that: The inner filling layer (43) has a spiral optical fiber groove, and the optical fiber (5) is filled in the inner side of the optical fiber groove in a spiral shape.

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