Opto-electric composite towed chain flat cable
By incorporating reinforcing components and tear-resistant fiber materials into the optoelectronic composite drag chain flat cable, the problem of cable breakage during wiring was solved, thereby enhancing the cable's compressive and tensile strength and ensuring stable signal transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海上力特种电缆有限公司
- Filing Date
- 2025-05-20
- Publication Date
- 2026-06-23
AI Technical Summary
Existing optoelectronic composite cables are prone to tensile breakage during the wiring process.
By incorporating reinforcing components inside the inner sheath, using galvanized soft steel wire as the reinforcing element, and combining structural designs such as tear-resistant fiber materials, shielding layers, flame-retardant layers, and outer sheaths, the cable's compressive and tensile strength is improved, and its flexibility and protective performance are enhanced.
It effectively prevents cables from breaking during dynamic bending and dragging, ensures stable transmission of electrical signals, enhances the flame retardant properties and protective capabilities of cables, reduces resistance, and improves conductivity.
Smart Images

Figure CN224400102U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of optoelectronic composite cable technology, and more particularly to optoelectronic composite drag chain flat cable. Background Technology
[0002] Optoelectronic composite drag chain flat cable is a new type of cable that combines optical fiber and electrical cable. This cable combines the advantages of both optical fiber and electrical cable, enabling high-speed data communication by transmitting optical signals and providing stable power support.
[0003] Existing optoelectronic composite cables need to be suitable for various environments during use. However, due to their simple structure, they are prone to tensile breakage during wiring. Therefore, improvements are being made to optoelectronic composite drag chain flat cables. Utility Model Content
[0004] In view of the shortcomings of the prior art, this application provides a photoelectric composite drag chain flat cable, which overcomes the shortcomings of the prior art and aims to solve the problem that existing photoelectric composite cables are prone to tensile breakage during the wiring process.
[0005] To achieve the above objectives, this application provides the following technical solution: a photoelectric composite drag chain flat cable, comprising an inner sheath, a reinforcing member disposed in the center of the inner sheath, optical fiber lines and cable lines symmetrically disposed on both sides of the reinforcing member inside the inner sheath, the reinforcing member, optical fiber lines, and cable lines arranged in parallel lines inside the inner sheath, and the optical fiber lines and cable lines are all wrapped with an insulating sleeve, the inner sheath is filled with tear-resistant fiber material around the reinforcing member, the reinforcing member is made of galvanized soft steel wire with a diameter ≥1.2mm, a shielding layer is disposed on the outside of the inner sheath, the shielding layer is woven from galvanized copper wire, a flame-retardant layer is disposed on the outside of the shielding layer, the flame-retardant layer is made of polyvinyl chloride material, an outer sheath is fixedly sleeved on the outside of the shielding layer, both the inner and outer sheaths are made of polyurethane material, anti-slip grooves are symmetrically formed on both outer walls of the outer sheath, the insulating sleeve is made of modified PVC material, and the cable lines are made of multiple strands of tinned copper wire twisted together.
[0006] By adopting the above technical solutions, the optical fiber and cable are insulated and protected by the insulating sleeve. By placing the reinforcing member in the center of the inner sheath, not only can the overall compressive strength of the cable be improved, but a stable tensile center can also be formed to balance the tensile force on the cable during use. The use of tear-resistant fiber material provides toughness to the cable as a whole, preventing the cable from breaking while increasing flexibility and ensuring that there is no risk of breakage when the cable is dynamically bent. The galvanized soft steel wire as a reinforcing member can significantly improve the tensile strength of the cable, and the flexibility of the galvanized soft steel wire allows the cable to maintain high strength while also having bending performance, meeting the needs of mobile installation or frequent bending.
[0007] In addition, the shielding layer effectively isolates external electromagnetic interference, ensuring stable transmission of electrical signals. The flame-retardant layer enhances the cable's flame retardancy. The inner sheath disperses stress during bending or dragging, protecting the internal fiber optic and cable wires from deformation or breakage. The outer sheath prevents wear or scratches caused by direct contact between the cable and external objects during cable chain movement. The inner and outer sheaths, made of polyurethane, have excellent tear resistance. Anti-slip grooves enhance the outer sheath's anti-slip capability. The insulation sleeve, made of modified PVC, can easily withstand AC2000V, 50Hz voltage even when submerged in water, ensuring no breakdown occurs. The cable is composed of multiple tinned copper wires twisted together, reducing overall resistance and improving conductivity. The multi-strand twisting design also better disperses stress, making the cable less prone to breakage during bending.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0009] 1. In this utility model, the optical fiber and cable are insulated and protected by setting an insulating sleeve. By placing the reinforcing member in the center of the inner sheath, not only can the overall compressive strength of the cable be improved, but a stable tensile center can also be formed to balance the tensile force on the cable during use. The use of tear-resistant fiber material provides toughness to the cable as a whole, preventing the cable from breaking while increasing flexibility and ensuring that there is no risk of breakage when the cable is dynamically bent.
[0010] 2. In this utility model, by setting a shielding layer, external electromagnetic interference can be effectively isolated to ensure stable transmission of electrical signals. By setting a flame-retardant layer, the flame-retardant ability of the cable can be improved. By setting an inner sheath, stress can be dispersed when the cable is bent or dragged, protecting the internal optical fiber and cable from deformation or breakage. By setting an outer sheath, wear or scratches caused by direct contact between the cable and external objects during cable chain movement can be prevented.
[0011] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram of the overall structure of the optoelectronic composite drag chain flat cable of this application;
[0014] Figure 2 This is a schematic diagram of the composition structure of the optoelectronic composite drag chain flat cable of this application;
[0015] Figure 3 This is a front cross-sectional view of the optoelectronic composite drag chain flat cable of this application.
[0016] Figure 4 This is a schematic diagram of the cable structure of this application.
[0017] In the diagram: 1. Inner sheath; 2. Reinforcing member; 3. Fiber optic cable; 4. Cable; 5. Insulating sleeve; 6. Tear-resistant fiber material; 7. Shielding layer; 8. Flame retardant layer; 9. Outer sheath; 10. Anti-slip groove. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] like Figure 1 - Figure 4 As shown, the optoelectronic composite drag chain flat cable provided in this embodiment includes an inner sheath 1. A reinforcing member 2 is provided in the center of the inner sheath 1. Optical fiber lines 3 and cable lines 4 are symmetrically arranged on both sides of the reinforcing member 2 inside the inner sheath 1. The reinforcing member 2, optical fiber lines 3, and cable lines 4 are arranged in parallel in a line inside the inner sheath 1. The outer surfaces of the optical fiber lines 3 and cable lines 4 are all wrapped with insulating sleeves 5. The inner sheath 1 is filled with tear-resistant fiber material 6 around the reinforcing member 2. The insulating sleeves 5 provide insulation protection for the optical fiber lines 3 and cable lines 4. By placing the reinforcing member 2 in the center of the inner sheath 1, not only can the overall compressive strength of the cable be improved, but a stable tensile center can also be formed to balance the tensile force on the cable during use. The tear-resistant fiber material 6 provides toughness to the cable as a whole, preventing the cable from breaking while increasing flexibility and ensuring that there is no risk of breakage when the cable is dynamically bent.
[0020] The reinforcing member 2 is made of galvanized soft steel wire with a diameter ≥1.2mm. The galvanized soft steel wire as the reinforcing member 2 can significantly improve the tensile strength of the cable. The flexibility of the galvanized soft steel wire allows the cable to maintain high strength while also having bending performance, meeting the needs of mobile installation or frequent bending.
[0021] The inner sheath 1 is provided with a shielding layer 7 on the outside. The shielding layer 7 is woven from galvanized copper wire. By setting the shielding layer 7, external electromagnetic interference can be effectively isolated to ensure stable transmission of electrical signals.
[0022] A flame-retardant layer 8 is provided on the outside of the shielding layer 7. The flame-retardant layer 8 is made of polyvinyl chloride material. The flame-retardant layer 8 improves the flame-retardant ability of the cable.
[0023] The shielding layer 7 is fixedly sleeved with an outer sheath 9. Both the inner sheath 1 and the outer sheath 9 are made of polyurethane material. By setting the inner sheath 1, stress is dispersed when the cable is bent or dragged, protecting the internal optical fiber 3 and cable 4 from deformation or breakage. By setting the outer sheath 9, wear or scratches caused by direct contact between the cable and external objects during the cable chain movement can be prevented. In addition, the inner sheath 1 and the outer sheath 9 made of polyurethane material have excellent tear resistance.
[0024] The outer walls on both sides of the outer sheath 9 are symmetrically provided with anti-slip grooves 10, which improves the anti-slip ability of the outer sheath 9.
[0025] The insulating sleeve 5 is made of modified PVC material, and the cable 4 is made of multiple strands of tinned copper wire. The insulating sleeve 5, made of modified PVC material, can easily withstand AC2000V, 50Hz voltage when immersed in water, ensuring that no breakdown will occur. The cable 4 is made of multiple strands of tinned copper wire, which reduces the overall resistance of the cable 4 and helps to improve the conductivity of the cable 4. In addition, the multi-strand twisting design can better distribute stress, making the cable 4 less likely to break when bent.
[0026] The working principle of this utility model is as follows: When using the photoelectric composite drag chain flat cable of this application, the optical fiber 3 and the cable 4 are insulated and protected by the insulating sleeve 5. By setting the reinforcing member 2 in the center of the inner sheath 1, not only can the overall compressive strength of the cable be improved, but a stable tensile center can also be formed to balance the tensile force on the cable during use. The tear-resistant fiber material 6 provides toughness to the cable as a whole, preventing the cable from breaking while increasing flexibility, ensuring that there is no risk of breakage when the cable is dynamically bent.
[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. A photoelectric composite drag chain flat cable, comprising an inner sheath (1), characterized in that, A reinforcing member (2) is centrally located inside the inner sheath (1). Optical fiber lines (3) and cable lines (4) are symmetrically arranged on both sides of the reinforcing member (2) inside the inner sheath (1). The reinforcing member (2), optical fiber lines (3), and cable lines (4) are arranged in a parallel line inside the inner sheath (1). The optical fiber lines (3) and cable lines (4) are all wrapped with insulating sleeves (5). Tear-resistant fiber material (6) is filled around the reinforcing member (2) inside the inner sheath (1). The reinforcing member (2) is made of galvanized soft steel wire with a diameter ≥ 1.2 mm. The inner sheath (1) is provided with a shielding layer (7) on the outside. The shielding layer (7) is woven from galvanized copper wire. The shielding layer (7) is provided with a flame-retardant layer (8) on the outside. The flame-retardant layer (8) is made of polyvinyl chloride material. The shielding layer (7) is fixedly sleeved with an outer sheath (9). Both the inner sheath (1) and the outer sheath (9) are made of polyurethane material. The outer walls on both sides of the outer sheath (9) are symmetrically provided with anti-slip grooves (10). The insulating sleeve (5) is made of modified PVC material. The cable (4) is made of multiple strands of tinned copper wire twisted together.