CN211086699U

CN211086699U - Miniature tensile field operations receive and releases armoured optical cable subassembly

Info

Publication number: CN211086699U
Application number: CN201921085410.5U
Authority: CN
Inventors: 吕政鸿
Original assignee: Dongjie Optical Technology Suzhou Co ltd
Current assignee: Dongjie Optical Technology Suzhou Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-07-24
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a miniature tensile field operations receive and releases armor optical cable subassembly, include from outer oversheath, first aramid fiber layer, woven mesh, armour pipe, inner sheath, second aramid fiber layer, coat, covering, fibre core to interior cladding in proper order. The utility model discloses the line footpath is thin, small, light in weight, strong weight ratio, and the field operations of being convenient for are carried and are receive and release.

Description

Miniature tensile field operations receive and releases armoured optical cable subassembly

Technical Field

The utility model relates to an optical cable technical field, in particular to miniature tensile field operations receive and releases armor optical cable subassembly.

Background

Modern wars have been advancing to the information and intelligent times, information guarantee of field operations is very important, and field operation optical cables become important communication equipment. The field operation optical cable is used in a complex environment and is used under the use condition of rapid wiring or repeated winding and unwinding. And the optical cable is required to be light in weight and convenient to carry; tensile strength, compressive strength and high strength-weight ratio; the flexibility is good, and the flexibility is easy; oil resistance, wear resistance and flame retardance; wide applicable temperature range and the like. The field operation optical cable is suitable for military radars, aviation and ship wiring, and provides communication guarantee for informatization field operation.

1. The field military operation development under the information-based condition requires high requirements for information transmission, requires synchronous relay of field video acquisition, communication lines, peripheral monitoring and the like, most of field optical cables used in the existing market are single-core field optical cables, can only transmit signals by one single cable, and are not beneficial to field operation if multiple channel signal acquisition is needed.

2. Under the field operation environment, the operation personnel need not carry the optical cable for communication tightly, still need carry rescue workers' hawser, to highly nervous operation, increase heavy burden, this just needs the field operations optical cable miniaturization to weight reduction, field operations optical cable line diameter on the existing market is thicker, and is heavier, has not accomplished the miniaturization yet.

3. In field operations, the environment is basically harsh environments such as rugged mountainous regions, jungles and the like, most of field operation optical cables in the current market are nonmetal field operation optical cables, the mechanical properties such as wear resistance, tensile strength and the like are poor, the optical cables are easy to damage, signal transmission is influenced, and the requirements cannot be met.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a miniature tensile field operations receive and releases armor optical cable subassembly, the line footpath is thin, small, light in weight, strong weight ratio, and the field operations of being convenient for are carried and are receive and release.

The technical scheme is as follows: in order to achieve the purpose, the utility model provides a miniature tensile field operations receive and releases armoured optical cable subassembly, include from outer oversheath, first aramid fiber layer, mesh grid, armour pipe, inner sheath, second aramid fiber layer, coat, covering, fibre core to interior cladding in proper order.

Further perfecting the technical scheme, the outer sheath is a flame-retardant polyurethane sheath. Polyurethane materials are the best insulating materials at present. The main chain of the polymer containing-NHCOO-repetitive structural unit contains strongly polar carbamate group, is insoluble in nonpolar group, has the temperature performance range of-40 ℃ to +65 ℃, has good oil resistance, toughness, wear resistance, aging resistance and adhesiveness, has good thermoplasticity, and simultaneously has good mechanical property, processability and flame retardant property, and the optical cable made of the material is particularly suitable for severe environment of field battle.

Further, the first aramid fiber layer is made of 10 strands of 1100D aromatic polyamide fibers, and the second aramid fiber layer is made of 6 strands of 1100D aromatic polyamide fibers. The aromatic polyamide fiber is synthesized fiber with aromatic compound as material and through polycondensation and spinning. The aramid fiber has good impact resistance and fatigue resistance, good dielectric property and chemical stability, and has the main function of tensile strength when the optical fiber is subjected to external force, so that the strength and the bending property of the optical cable are ensured. The large-area aramid fiber reinforced fiber provides extremely high mechanical strength for the optical cable, the tensile strength of the first aramid fiber layer reaches 2000N, and the optical cable can bear the weight and the weight of 200 KG; the tensile strength of the second aramid fiber layer reaches 600N.

Further, the mesh grid is a net structure woven by stainless steel woven wires. The braided net plays a role in torsion resistance, can enhance the torsion resistance of the optical cable and can protect the elasticity of instant side pressure impact. Meanwhile, the tensile property of the optical cable can be obviously improved.

Furthermore, the armor pipe is a 304 stainless steel spiral steel pipe, the thickness of a single-side wall of the armor pipe is 0.25mm, and the pipe diameter of the armor pipe is 1.4-1.9 mm. The armor tube can effectively protect the optical fiber, prevent damage caused by various mechanical stresses and improve the extrusion resistance and tensile property of the optical cable. The metal armor tube protects the fiber core, can be naturally bent, has the advantages of high pressure resistance and strong tension resistance, and can provide excellent optical cable protection and safety. The coating is coated outside the optical fiber, and has the functions of preventing bite and ants and good bending resistance, compression resistance and anti-electromagnetic interference capability.

Further, the inner sheath adopts low smoke and zero halogen material, and the diameter is 1.3 mm. The inner sheath plays a buffering role when the optical fiber is subjected to external force, the plurality of tightly-packed optical fibers and the aramid fiber are combined to be covered, the field operation optical cable is ensured to have larger tensile strain capacity, the optical fibers in the multi-core optical cable are not easy to move in the inner sheath, the best temperature performance and the minimum additional attenuation are provided, the reliability and the service life of the optical cable under severe conditions are ensured, and the extra length of the optical fiber is ensured.

Furthermore, the coating layer is made of polyacrylate, the cladding layer is made of doped silica, and the fiber core is made of silica. The coating layer increases the mechanical new energy of the optical fiber and prevents the fiber core from being polluted by dust. The cladding provides the total reflection condition of light, and the main function is to enable the optical signal to be enclosed in the fiber core for transmission. The core is used for transmitting optical signals.

Furthermore, the braided net is braided by a stainless steel braided wire of 0.07mm and a 16-spindle braiding machine, the coverage area is larger than 50%, the thickness of a single-side wall is 0.07mm, and the size of the braided optical cable is 2.0 +/-0.10 mm. The woven mesh ensures high strength in a building structure and arrangement in a severe environment, maximum embodiment of tension and pressure is ensured, the optical cable meets the tension strength of 2000N for a long time, and the optical fiber is not broken.

Furthermore, the coating layer, the cladding layer and the fiber core are combined into a tightly-packed optical fiber with the diameter of 0.4mm, and 4 tightly-packed optical fibers are wrapped in the second aramid fiber layer. After the arrangement, the optical cable has extremely high strength-to-weight ratio and is convenient for quick wiring or repeated winding and unwinding.

Through the technical scheme, the utility model discloses technical scheme's beneficial effect is: the utility model relates to a miniature tensile field operations optical cable, the line footpath is thin, small, light in weight, strong weight ratio, and the field operations of being convenient for are carried and are receive and release.

2. The utility model is designed to place 4 optical fibers in the optical cable, which is convenient for multi-channel signal transmission and increases bandwidth, and satisfies the field battle requirement under the information condition;

3. the utility model increases the tension of the optical cable, so that the optical cable is combined with the rescue cable, and the rescue personnel can be rescued and the signal can be transmitted in the war;

4. the utility model relates to a miniature tensile field operations optical cable, the protection of inclosed stainless steel armour pipe has strengthened the resistance to compression, wear-resisting, resistant oil and fire-retardant performance of optical cable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

According to fig. 1, the utility model provides a miniature tensile field operations receive and releases armor optical cable subassembly, including oversheath 1, first aramid fiber layer 2, mesh grid 3, armour pipe 4, inner sheath 5, second aramid fiber layer 6, coat 7, covering 8, fibre core 9.

The coating layer 7, the cladding layer 8 and the fiber core 9 are sequentially wrapped from outside to inside to form a tightly-wrapped optical fiber; oversheath 1 parcel first aramid fiber layer 2, first aramid fiber layer 2 package is in the outside of woven mesh 3, and woven mesh 3 parcel armour pipe 4, armour pipe 4 protection inner sheath 5, and inner sheath 5 parcel second aramid fiber layer 6, and four tight package optic fibre are being wrapped up in second aramid fiber layer 6.

The technical indexes are as follows: the optical cable achieves the bearing 200KG tensile force; the optical cable meets the vertical burning test specified in GB/T18380.12; the long-term working tensile force of the optical cable is 1500N, the short-term working tensile force of the optical cable is 2000N, and optical fiber signals are not influenced. The sheath material of the optical cable is polyurethane, the temperature resistance of the whole optical cable is between-40 ℃ and +65 ℃, and the optical cable is free from fracture and sheath cracking.

The utility model provides a miniature tensile field operations receive and releases armor optical cable subassembly, the line footpath is thin, small, light in weight, strong weight ratio, and the field operations of being convenient for are carried and are receive and release. Has the performances of tension resistance, pressure resistance, good flexibility, oil resistance, wear resistance, flame retardance, wide applicable temperature range and the like. The system is suitable for field operation environments, radars, aviation and ship wiring, and provides communication guarantee for informationized field operations. And the device can also be used in occasions with various severe conditions such as oil fields, mines, ports, communication line rush repairs, field rescue and the like.

4 optical fibers are placed in the optical cable, so that multichannel signal transmission and bandwidth increase are facilitated, and the field battle requirements under the information condition are met as the quick movable connectors are pre-installed at the two ends of the optical cable.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a miniature tensile field operations receive and releases armoured optical cable subassembly which characterized in that: the fireproof cable comprises an outer sheath, a first aramid fiber layer, a woven mesh, an armor pipe, an inner sheath, a second aramid fiber layer, a coating layer, a cladding and a fiber core which are sequentially coated from outside to inside, wherein the outer sheath is a flame-retardant polyurethane sheath, the diameter of the outer sheath is smaller than 2.8mm, the first aramid fiber layer is made of 10 strands of 1100D aromatic polyamide fibers, the second aramid fiber layer is made of 6 strands of 1100D aromatic polyamide fibers, the woven mesh is a mesh structure woven by stainless steel woven wires, the armor pipe is a 304 stainless steel spiral steel pipe, the thickness of a single-side wall is 0.25mm, the diameter of the pipe is 1.4-1.9 mm, the inner sheath is made of low-smoke halogen-free materials, the diameter of the inner sheath is 1.3mm, the coating layer is made of polyacrylate, the fiber core is made of doped silica, the fiber core is made of silica, the woven mesh is made of 0.07mm stainless steel woven wires, the coating layer is made of stainless, The 16-spindle braiding machine is used for braiding, the coverage area is larger than 50%, the wall thickness of a single side is 0.07mm, the size of the braided optical cable is 2.0 +/-0.10 mm, the coating layer, the cladding layer and the fiber core are combined into tightly-wrapped optical fibers with the diameter of 0.4mm, and 4 tightly-wrapped optical fibers are wrapped in the second aramid fiber layer.