Duplex communication cable

Abstract

The utility model provides a duplex communication cable, which relates to the field of field emergency communication and comprises an armored optical fiber, a magnet telephone communication cable, a non-metal tensile element FRP (Fiber Reinforced Plastic), a polyester film tape and a flame-retardant insulating outer protective layer, the magnet telephone communication cable and the non-metal tensile element FRP are arranged on the outer side of the polyester film tape and are uniformly twisted around the armored optical fiber, the armored optical fiber, the magnet telephone communication cable and the non-metal tensile element FRP form a central structure, and the magnet telephone communication cable and the non-metal tensile element FRP are coated with a flame-retardant insulating outer protective layer; the cable provided by the utility model has the advantages of light weight, small outer diameter and flexibility, and has excellent mechanical and physical properties and environmental performance; the structure provides possibility for the individual soldier to quickly lay and timely arrive at a designated position, is suitable for quick emergency communication of troops and emergency rescue occasions such as various mine tunnels, and effectively and quickly solves the communication problem of combat and rescue sites.

Description

Technical Field

[0001] The utility model relates to the technical fields of field emergency communication, optical and magneto-telephone communication, and particularly relates to a duplex communication cable integrating multiple functions for field emergency communication. Background Art

[0002] In modern warfare and emergency rescue sites, it is often required that the rescue speed be fast and accurate. The on-site command needs to quickly understand the real-time situation of the front-line combat and disaster sites in order to make corresponding command and dispatching arrangements. The establishment of the on-site command communication network requires both the rapid laying of communication optical cables and the erection of communication terminal machines, which is very complicated. In order to quickly understand the situation ahead and enable communication after the communication cable is laid, it is necessary to realize two functions: optical fiber communication and magneto-telephone communication, which play a crucial role in improving the combat response time, quickly issuing combat instructions, striving for the golden time for personnel rescue, ensuring the safety of rescue personnel, minimizing disaster losses, and winning the war.

[0003] At present, to realize the two functions of optical fiber communication and magneto-telephone communication, individual soldiers or rescue team members need to carry two cables, namely optical cables and communication cables, which can be realized. The appearance volume is large, the weight is heavy, and the resistance is large during the dragging process. It is very difficult for individual soldiers to quickly reach the rescue site.

[0004] Therefore, there is an urgent need for a duplex communication cable integrating an optical cable and a communication cable, which is small in diameter and light in weight, to meet the application requirements of rapid retraction and wiring in the wild. After the duplex communication cable is laid, magneto-telephone communication can be carried out to quickly master the situation of the front-line site. Summary of the Utility Model

[0005] The utility model provides a duplex communication cable that highly integrates optical fiber communication and magneto-telephone communication cables, and has the advantages of light weight, small volume, and being convenient to carry with multiple functions integrated.

[0006] The technical solution for the utility model to solve the above technical problems is as follows: A duplex communication cable, characterized in that it includes an armored optical fiber, a magneto-telephone communication cable, a non-metallic tensile element FRP, a polyester film tape, and a flame-retardant insulating outer sheath. The polyester film tape is wound around the outside of the armored optical fiber. The magneto-telephone communication cable and the non-metallic tensile element FRP are on the outside of the polyester film tape and are evenly stranded around the armored optical fiber. The armored optical fiber, the magneto-telephone communication cable, and the non-metallic tensile element FRP form a central structure, and the outside of the magneto-telephone communication cable and the non-metallic tensile element FRP is coated with a flame-retardant insulating outer sheath.

[0007] Further, the duplex communication cable is composed of the armored optical fiber, the magneto-telephone communication cable, the non-metallic tensile element FRP, the polyester film tape, and the flame-retardant insulating outer sheath.

[0008] Further, the magneto telephone communication cable is formed by stranding two pairs of enameled oxygen-free copper wires with different pitches.

[0009] Further, the flame-retardant insulating outer sheath is made of black TPU, PU or PE.

[0010] Further, the number of optical fibers in the armored optical fiber is 2 cores or 4 cores and above.

[0011] The beneficial effects of the present utility model are as follows: The present utility model adopts a central structure, with the core being an armored communication optical fiber, which is wound and tightened with a polyester film tape. Non-metallic tensile elements FRP and a magneto telephone cable with a certain stranding pitch are evenly stranded around it, and the outermost layer is a flame-retardant insulating outer sheath. This structure can protect the optical fiber from damage to the greatest extent, while also ensuring the tensile force, volume and weight of the duplex communication cable, which is beneficial to reducing the weight of the product and obtaining the maximum mechanical properties per unit volume. It has the advantages of light weight, small outer diameter and flexibility, and excellent mechanical and physical properties and environmental properties. This structure makes it possible for individual soldiers to quickly lay and reach the designated position in a timely manner, and is suitable for rapid emergency communication of troops and various emergency rescue occasions such as mine tunnels, effectively and quickly solving the communication problems at the combat and rescue sites and meeting the needs of field operations and on-site rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic cross-sectional structure diagram of a duplex communication cable according to an embodiment of the present utility model;

[0013] In the figure: 1. Armored optical fiber, 2. Magneto telephone communication cable, 3. Non-metallic tensile element FRP, 4. Polyester film tape, 5. Flame-retardant insulating outer sheath. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The principles and features of the present utility model will be described below. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0015] Embodiment 1

[0016] The duplex communication cable of this embodiment adopts a central structure, as Figure 1 shown. It is composed of an armored optical fiber 1, a magneto telephone communication cable 2, a non-metallic tensile element FRP 3, a polyester film tape 4, and a flame-retardant insulating outer sheath 5. The armored optical fiber 1 is composed of 2 to 4 cores of G657 optical fibers strengthened and protected by a stainless steel threaded tube. The armored optical fiber 1 is in the center, the polyester film tape 4 is wound around the outside of the armored optical fiber 1, and the magneto telephone communication cable 2 and the non-metallic tensile element FRP 3 are on the outside of the polyester film tape 4 and are evenly stranded around the armored optical fiber 1 to form a central structure. The outside of the magneto telephone communication cable 2 and the non-metallic tensile element FRP 3 is covered with a flame-retardant insulating outer sheath 5.

[0017] In this embodiment, the outer sheath 5 is made of black TPU. The TPU is formed by one-time extrusion molding. In other embodiments of the present invention, materials such as PU and PE can also be used; the magneto telephone communication cable 2 is formed by stranding two pairs of enameled oxygen-free copper wires with different pitches.

[0018] The technical indicators of this embodiment are as follows:

[0019]

[0020] The duplex communication cable for optical and magneto telephones of the present invention can be carried, laid, etc. by a single soldier / person in the field operations and rescue sites, and can also be laid over long distances under different terrain conditions by a group. It can quickly, flexibly and maneuverably build an emergency communication network. After the cable is laid, magneto telephone communication can be implemented, and at the same time, the optical fiber communication link is also completed synchronously to achieve duplex communication, providing dual communication means for on-site communication command.

Claims

1. A duplex communication cable, characterized in that: The invention comprises an armored optical fiber (1), a magnetic telephone communication cable (2), a non-metallic tensile element FRP (3), a polyester film tape (4), and a flame-retardant insulating outer sheath (5); the polyester film tape (4) is wrapped around the outside of the armored optical fiber (1); the magnetic telephone communication cable (2) and the non-metallic tensile element FRP (3) are evenly twisted around the armored optical fiber (1) on the outside of the polyester film tape (4); the armored optical fiber (1) and the magnetic telephone communication cable (2) and the non-metallic tensile element FRP (3) form a central structure; the outside of the magnetic telephone communication cable (2) and the non-metallic tensile element FRP (3) are coated with a flame-retardant insulating outer sheath (5).

2. The duplex communication cable according to claim 1, characterized in that: It consists of the armored optical fiber (1), a magneto telephone communication cable (2), a non-metallic tensile element FRP (3), a polyester film tape (4) and a flame-retardant insulating outer sheath (5).

3. The duplex communication cable according to claim 1, characterized in that: The magnetic telephone communication cable (2) is formed by twisting two pairs of oxygen-free copper enameled wires with different pitches.

4. The duplex communication cable according to claim 1, characterized in that: The flame-retardant insulating outer sheath (5) is made of black TPU, PU or PE.

5. The duplex communication cable according to claim 1, characterized in that: The number of cores in the armored optical fiber (1) is 2 cores or 4 cores or more.

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