High-flame-retardant flexible photoelectric composite cable

Abstract

The utility model provides a highly flame-retardant flexible photoelectric composite cable, which comprises a main shielding layer, a flexible sheath, a conductor shield, a conductor, a conductor reinforcing rib, an integral reinforcing rib and a reinforcing sheath, and is characterized in that the flexible sheath wraps the outer side of the main shielding layer, and the conductor shield is fixedly arranged at the outer edge position in the main shielding layer; the conductor is fixedly arranged at the outer edge position in the conductor shield; the conductor reinforcing rib is fixedly mounted in the middle of the interior of the conductor shield; the integral reinforcing rib is fixedly mounted in the middle of the interior of the main shielding layer; the reinforcing sheath wraps the outer side of the flexible sheath; due to the arrangement of the flexible sheath and the reinforced sheath, the cable has the advantages of strong mechanical property, high flexibility and bending property, sufficient protection capability, flame retardant property and strong environmental adaptability.

Description

Technical Field

[0001] This utility model relates to the field of optoelectronic cable technology, and in particular to a highly flame-retardant flexible optoelectronic composite cable. Background Technology

[0002] With the development of modern industrialization, informatization, and automation, optoelectronic composite cables are widely used in various high-precision and high-requirement fields, such as power, communications, aviation, railway, and intelligent manufacturing industries. As a dual carrier of power and information transmission, optoelectronic composite cables offer excellent performance, ensuring power delivery while also achieving efficient and stable signal transmission. However, with increasingly complex application scenarios, traditional optoelectronic composite cables face new technical challenges in several aspects, such as poor environmental adaptability, susceptibility to damage, insufficient anti-interference capabilities, and poor flame retardant properties. These limitations restrict their use in more complex and harsh environments.

[0003] Insufficient mechanical properties:

[0004] Although the structure of traditional optoelectronic composite cables can meet certain mechanical strength requirements, in some harsh environments, the cables are prone to breakage, indentation, wear, and other problems, which can lead to reduced cable performance or shortened service life.

[0005] Poor flexibility and bending properties:

[0006] Traditional cable designs often prioritize enhancing tensile strength and impact resistance. However, this rigid structure results in insufficient flexibility, making it difficult to arrange cables freely in confined spaces. Especially in applications requiring frequent bending, movement, or reversals, traditional cables are prone to fatigue damage, thus affecting their normal operation.

[0007] Insufficient protective capabilities:

[0008] Although existing cable products employ multi-layered protection designs, the protective layers of most cables still fall short in the face of environmental factors such as high temperatures, chemicals, ultraviolet radiation, and corrosion. In particular, fiber optic composite cables require simultaneous protection of both the power transmission conductor and the fiber optic transmission component; current technologies are still insufficient in terms of corrosion resistance, fire resistance, and UV resistance, potentially leading to cable damage and unstable signal transmission.

[0009] Insufficient flame retardant properties:

[0010] With increasingly stringent safety requirements for cables, their flame-retardant properties have become paramount. In critical applications such as power supply facilities, petrochemical plants, and mines—high-risk environments—the flame-retardant properties of traditional cables are insufficient, posing a risk of fire spread and potentially leading to safety accidents. Therefore, improving the flame-retardant properties of cables has become an urgent need for industry development.

[0011] Poor environmental adaptability:

[0012] Traditional cables are often designed for single application environments and lack broad adaptability. For example, in environments with humidity, chemical corrosion, or vibration, the performance of the cable may degrade or even be damaged. In some complex scenarios, such as underground pipelines and mines, this can lead to equipment failure and system interruption.

[0013] Therefore, it is essential to invent a highly flame-retardant flexible optoelectronic composite cable. Utility Model Content

[0014] To address the aforementioned technical problems, this utility model provides a high flame-retardant flexible optoelectronic composite cable, solving the issues of insufficient mechanical properties, poor flexibility and bending performance, inadequate protection, insufficient flame retardancy, and poor environmental adaptability inherent in existing structures. A high flame-retardant flexible optoelectronic composite cable includes a main shielding layer, a flexible sheath, a conductor shield, a conductor, conductor reinforcing ribs, an integral reinforcing rib, and a reinforcing sheath. The flexible sheath wraps around the outside of the main shielding layer, and the conductor shield is fixedly installed inside the main shielding layer at its outer edge. The conductor is also fixedly installed inside the conductor shield at its outer edge. The conductor reinforcing rib is fixedly installed inside the conductor shield at its center. The integral reinforcing rib is fixedly installed inside the main shielding layer at its center. The reinforcing sheath wraps around the outside of the flexible sheath.

[0015] The flexible sheath includes a flexible protective layer, a rigid armor, a filler protective armor, and a shrinkable heat shrink cover. The flexible protective layer is wrapped around the outside of the main shielding layer, and the rigid armor and the filler protective armor are interleaved and wrapped around the outside of the flexible protective layer. The shrinkable heat shrink cover is wrapped around the outside of the rigid armor and the filler protective armor.

[0016] The reinforced sheath includes a reinforced core, an inner anti-slip surface, an outer surface layer, and a reinforced skeleton. The inner anti-slip surface is fixedly installed on the inner wall of the reinforced core, and the outer surface layer is fixedly installed on the outer surface of the reinforced core. The reinforced skeleton is fixedly installed inside the reinforced core.

[0017] The rigid armor inside the flexible sheath is made of a steel metal strip, and the rigid armor is spirally wrapped around the surface of the flexible protective layer. During the spiral wrapping, gaps are left between the rigid armor sections. These gaps are filled by a filler armor, which is a polyethylene plastic strip with a spiral direction completely consistent with the rigid armor. The gaps between the rigid armor and the filler armor serve the following functions: ① Protection: The flexible sheath is mainly used to wrap around the outside of the cable's internal structure, protecting the various layers of materials inside the cable from external physical damage and environmental influences. The cable's performance is assessed based on several factors: ① the impact of environmental factors on the cable; ② enhanced durability: The flexible sheath utilizes high-strength materials such as rubber and plastics, enhancing the cable's tensile strength, abrasion resistance, and weather resistance, thus improving its service life; ③ increased cable flexibility: Rigid armor and filler armor play crucial protective roles in high flame-retardant flexible optoelectronic composite cables. Rigid armor, typically composed of steel strips, provides mechanical strength, preventing external physical damage such as tension, compression, or impact, enhancing tensile strength, and allowing the cable to bend within a certain range without significant damage. Filler armor, filled with plastic materials like polyethylene, fills the gaps between the rigid armor layers, further enhancing the cable's protective performance and preventing damage to the internal structure from external factors. Furthermore, filler armor improves corrosion resistance and durability, and to some extent enhances flexibility, enabling it to operate in confined spaces or environments requiring frequent bending. Through the combination of rigid armor and filler armor, the cable not only possesses excellent mechanical protection capabilities but also maintains a certain degree of flexibility and durability, adapting to the demands of complex environments.

[0018] The reinforcing core inside the reinforced sheath is made of styrene-butadiene rubber in a tubular shape, and the inner anti-slip surface is made of a resin adhesive layer. This outer layer is located on the outermost layer of the cable, and its surface can be printed with manufacturer information and cable information. The reinforcing skeleton is made of a spiral steel wire, and the reinforcing skeleton is flexible and can bend and deform, serving the following functions: ① Enhancing the mechanical protection of the cable: The reinforced sheath, by wrapping around the flexible sheath, provides protection against external mechanical damage, scratches, and impacts, especially when the cable needs to be exposed to harsh environments, such as industrial sites and construction sites; ② Improving tensile strength: Through the design of the reinforcing core and the reinforcing skeleton, the reinforced sheath significantly improves the tensile strength of the cable. The reinforcing skeleton is typically made of spiral steel wire, which has high tensile strength, ensuring that the cable is not easily broken or deformed when stretched; ③ Prevents wear and corrosion: The internal anti-slip surface and outer layer of the reinforcing sheath provide additional protection against external chemicals, ultraviolet rays, or other environmental factors, extending the cable's service life; ④ Improves cable flexibility: Although the reinforcing sheath structure is robust, its design still possesses a certain degree of flexibility, enabling the cable to adapt to complex installation environments, especially in scenarios where the cable needs to be frequently bent or subjected to movement; ⑤ Enhances fire resistance: The materials used in the reinforcing sheath typically have good flame-retardant properties, which can delay the cable's combustion in emergencies such as fires, prevent the spread of fire, and ensure the safe use of the cable in high-temperature environments.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The flexible sheath of this utility model has the following functions: ① Protection: The flexible sheath is mainly used to wrap around the outside of the internal structure of the cable, protecting the internal layers of the cable and preventing external physical damage and environmental factors from affecting the cable; ② Enhanced durability: Because the flexible sheath uses high-strength materials such as rubber and plastics, it can enhance the tensile strength, friction resistance, and weather resistance of the cable, thereby improving the service life of the cable; ③ Increased cable flexibility: Rigid armor and filler armor play a key protective role in high flame-retardant flexible optoelectronic composite cables. Rigid armor is usually made of steel metal strips, providing mechanical strength to the cable, preventing external physical damage such as tension, compression, or impact, enhancing the tensile strength of the cable, and allowing the cable to bend within a certain range without easily being damaged. Filler armor is used to fill the gaps between the rigid armors, using plastic materials such as polyethylene to further enhance the cable's protective performance and prevent external factors from damaging the internal structure of the cable. Furthermore, the filler armor enhances the cable's corrosion resistance and durability, and to some extent improves its flexibility, enabling it to be used in confined spaces or environments requiring frequent bending. Through the combination of rigid armor and filler armor, the cable not only possesses excellent mechanical protection capabilities but also maintains a certain degree of flexibility and durability, adapting to the needs of use in complex environments.

[0021] 2. The reinforced sheath of this utility model has the following functions: ① Enhances the mechanical protection of the cable:

[0022] The reinforced sheath, by wrapping around the flexible sheath, provides protection against external mechanical damage, scratches, and impacts, especially when the cable needs to be exposed to harsh environments, such as industrial sites and construction sites; ② Increased tensile strength: The reinforced sheath significantly improves the tensile strength of the cable through its reinforced core and skeleton design. The reinforcing skeleton is usually made of spiral steel wire, which has high tensile strength, ensuring that the cable is not easily broken or deformed when stretched; ③ Prevention of wear and corrosion: The internal anti-slip surface and outer layer of the reinforced sheath provide additional protection against damage to the cable surface from external chemicals, ultraviolet rays, or other environmental factors, extending the cable's service life; ④ Improved cable flexibility: Although the reinforced sheath structure is robust, its design still has a certain degree of flexibility, allowing the cable to adapt to complex installation environments, especially in scenarios where the cable needs to be frequently bent or subjected to movement; ⑤ Enhanced fire resistance: The materials used in the reinforced sheath usually have good flame-retardant properties, which can delay the spread of fire in emergency situations such as fires, ensuring the safe use of the cable in high-temperature environments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the flexible sheath of this utility model.

[0025] Figure 3 This is a structural schematic diagram of the reinforced sheath of this utility model.

[0026] In the picture:

[0027] Main shielding layer 1, flexible sheath 2, flexible protective layer 21, rigid armor 22, filling protective armor 23, tightening heat shrink cover 24, conductor shield 3, conductor 4, conductor reinforcing rib 5, overall reinforcing rib 6, reinforcing sheath 7, reinforcing core 71, internal anti-slip surface 72, outer layer 73, reinforcing skeleton 74. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] As attached Figure 1 To be continued Figure 3 As shown.

[0030] This utility model provides a high flame-retardant flexible optoelectronic composite cable, comprising a main shielding layer 1, a flexible sheath 2, a conductor shield 3, a conductor 4, a conductor reinforcing rib 5, an integral reinforcing rib 6, and a reinforcing sheath 7, wherein: the flexible sheath 2 is wrapped around the outside of the main shielding layer 1, and the conductor shield 3 is fixedly installed inside the main shielding layer 1 at the outer edge position, and the conductor 4 is fixedly installed inside the conductor shield 3 at the outer edge position; the conductor reinforcing rib 5 is fixedly installed inside the conductor shield 3 at the middle position; the integral reinforcing rib 6 is fixedly installed inside the main shielding layer 1 at the middle position; and the reinforcing sheath 7 is wrapped around the outside of the flexible sheath 2.

[0031] The flexible sheath 2 includes a flexible protective layer 21, a rigid armor 22, a filler protective armor 23, and a shrinkable heat shrink cover 24. The flexible protective layer 21 is wrapped around the outside of the main shielding layer 1. The rigid armor 22 and the filler protective armor 23 are interleaved and wrapped around the outside of the flexible protective layer 21. The shrinkable heat shrink cover 24 is wrapped around the outside of the rigid armor 22 and the filler protective armor 23.

[0032] The reinforced sheath 7 includes a reinforced core 71, an inner anti-slip surface 72, an outer surface layer 73, and a reinforced skeleton 74. The inner anti-slip surface 72 is fixedly installed on the inner wall of the reinforced core 71, and the outer surface layer 73 is fixedly installed on the outer surface of the reinforced core 71. The reinforced skeleton 74 is fixedly installed inside the reinforced core 71.

[0033] The rigid armor 22 inside the flexible sheath 2 is made of a steel metal strip, and the rigid armor 22 is spirally wrapped around the surface of the flexible protective layer 21. When the rigid armor 22 is spirally wrapped, there are gaps between them. The gaps between the rigid armor 22 are filled by a filling protective armor 23, and the filling protective armor 23 is made of a polyethylene plastic strip, and its spiral direction is completely consistent with that of the rigid armor 22. There are gaps between the rigid armor 22 and the filling protective armor 23.

[0034] The reinforcing core 71 inside the reinforcing sheath 7 is a tubular covering structure made of styrene-butadiene rubber, and the inner anti-slip surface 72 is a layer of resin adhesive. The outer surface layer 73 is located on the outermost layer of the cable, and its surface can be printed with manufacturer information and cable information. The reinforcing skeleton 74 is made of a spiral steel wire, and the reinforcing skeleton 74 is flexible and can be bent and deformed.

[0035] Compared with existing technologies, this equipment has the following significant advantages:

[0036] Enhanced mechanical protection:

[0037] This equipment employs a structure including rigid armor 22 and filled protective armor 23, significantly improving the cable's tensile strength, compressive strength, and resistance to external impacts. This allows the cable to maintain good working condition even in complex environments such as high voltage, high friction, or physical impact, far exceeding the durability of traditional cables.

[0038] Excellent flexibility and bending properties:

[0039] While enhancing mechanical protection, this equipment still maintains a certain degree of flexibility and bending performance. Through its carefully designed structure, especially the flexible sheath 2 and the reinforced sheath 7, the cable can adapt to various bending and complex installation requirements, making it convenient for use in confined spaces and environments with frequent movement, unlike traditional cables which are easily restricted or damaged by bending.

[0040] Comprehensive protective layer design:

[0041] The cable's flexible sheath 2 combines a protective layer 21, rigid armor 22, and filler armor 23 in a composite design, providing multiple layers of protection. This multi-layered protection design gives the cable excellent weather resistance, corrosion resistance, and resistance to chemical attack, effectively preventing damage to the cable from external factors and extending its service life.

[0042] Flame retardancy and improved safety:

[0043] This equipment utilizes highly flame-retardant materials, particularly in the reinforced sheath 7, which incorporates a flame-retardant core structure 71 and a high-temperature resistant outer layer 73. In emergencies such as fires, this effectively slows combustion and prevents the spread of fire, significantly improving the cable's safety in high-temperature or fire environments. Compared to traditional cables, its fire safety performance is more outstanding, meeting more stringent safety standards.

[0044] Enhanced corrosion resistance and anti-aging properties:

[0045] This equipment enhances the cable's corrosion resistance and aging resistance by using corrosion-resistant materials. This allows the cable to be used for extended periods in harsh environments without being easily damaged by chemical corrosion or ultraviolet radiation, thus improving the cable's long-term stability.

[0046] This improves the flexibility and adaptability of the cable.

[0047] Through the integrated design of the flexible sheath 2 and the reinforced sheath 7, this equipment maintains high strength and durability while exhibiting excellent adaptability, enabling its use in locations requiring frequent movement, bending, or interaction with other equipment. This flexibility is difficult to achieve with traditional cables, and this equipment offers greater applicability, especially for scenarios requiring extensive cabling or frequent relocation.

[0048] Summarize:

[0049] Compared with existing technologies, this equipment has significant advantages in mechanical protection, flexibility, safety, durability, and resistance to external environmental damage. It performs particularly well in high-pressure, high-friction, chemical corrosion, and high-temperature environments, providing a more reliable and durable cable solution.

[0050] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A highly flame-retardant flexible optoelectronic composite cable, characterized in that: It includes a main shielding layer (1), a flexible sheath (2), a conductor shield (3), a conductor (4), a conductor reinforcing rib (5), an integral reinforcing rib (6), and a reinforcing sheath (7), wherein: the flexible sheath (2) is wrapped around the outside of the main shielding layer (1), and the conductor shield (3) is fixedly installed inside the main shielding layer (1) at the outer edge position, and the conductor (4) is fixedly installed inside the conductor shield (3) at the outer edge position; the conductor reinforcing rib (5) is fixedly installed inside the conductor shield (3) at the middle position; the integral reinforcing rib (6) is fixedly installed inside the main shielding layer (1) at the middle position; and the reinforcing sheath (7) is wrapped around the outside of the flexible sheath (2).

2. The high flame-retardant flexible optoelectronic composite cable as described in claim 1, characterized in that: The flexible sheath (2) includes a flexible protective layer (21), a rigid armor (22), a filler protective armor (23), and a shrinkable heat shrink cover (24). The flexible protective layer (21) is wrapped around the outside of the main shielding layer (1), and the rigid armor (22) and the filler protective armor (23) are interleaved and wrapped around the outside of the flexible protective layer (21). The shrinkable heat shrink cover (24) is wrapped around the outside of the rigid armor (22) and the filler protective armor (23).

3. The high flame-retardant flexible optoelectronic composite cable as described in claim 1, characterized in that: The reinforcing sleeve (7) includes a reinforcing core (71), an inner anti-slip surface (72), an outer surface layer (73), and a reinforcing skeleton (74). The inner anti-slip surface (72) is fixedly installed on the inner wall of the reinforcing core (71), and the outer surface layer (73) is fixedly installed on the outer surface of the reinforcing core (71). The reinforcing skeleton (74) is fixedly installed inside the reinforcing core (71).

4. The high flame-retardant flexible optoelectronic composite cable as described in claim 2, characterized in that: The rigid armor (22) inside the flexible sheath (2) is made of a steel metal strip, and the rigid armor (22) is spirally wrapped around the surface of the flexible protective layer (21). When the rigid armor (22) is spirally wrapped, there are gaps between them. The gaps between the rigid armor (22) are filled by filling protective armor (23), and the filling protective armor (23) is made of polyethylene plastic strip, and its spiral direction is completely consistent with the rigid armor (22). There are gaps between the rigid armor (22) and the filling protective armor (23).

5. The high flame-retardant flexible optoelectronic composite cable as described in claim 3, characterized in that: The reinforcing core (71) inside the reinforcing sheath (7) is a tubular covering structure made of styrene-butadiene rubber, and the inner anti-slip surface (72) is a layer of resin adhesive. The outer surface layer (73) is located on the outermost layer of the cable, and its surface can be printed with manufacturer information and cable information. The reinforcing skeleton (74) is made of a spiral steel wire, and the reinforcing skeleton (74) is flexible and can be bent and deformed.

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