CN2331979Y

CN2331979Y - Anti-gunslinging type optical cable with sleeve

Info

Publication number: CN2331979Y
Application number: CN 98234118
Authority: CN
Inventors: 王福锦; 王爱国
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-30
Filing date: 1998-04-30
Publication date: 1999-08-04
Anticipated expiration: 2008-04-30

Abstract

The utility model relates to an anti-gunned type optical cable with a sleeve, comprising a blue core and an outer protective layer. The structure of the utility model is characterized in that a cable core comprise a sleeve tube and an aramid fiber protective layer, wherein, optical fiber is placed in the inner cavity of the sleeve tube; the aramid fiber protective layer wraps up the sleeve tube; a loose sleeve tube adopts bidirectional hinged contact; filling elements are arranged between two adjacent sleeve tubes and between the inner walls of each sleeve tube and the aramid fiber protective layer; the loose sleeve tube is not provided with a center reinforcing core which is composed of the aramid fiber; the outer side of the loose sleeve tube is coated with petroleum jelly; an inner protective layer is arranged between the aramid fiber protective layer and the outer protective layer, and the inner protective layer adopts binding yarn or bundling belts. The utility model not only has the advantages of high impact strength and good environment adaptability, but also has the advantages of light weight, portability and convenient laying. The utility model is particularly applied to emergencies, field battles and the technical field of aerial communication.

Description

Anti-gunslinging type band cover pipe optical cable

The utility model relates to a kind of communication optical fiber cable, and particularly a kind of anti-gunslinging type band cover pipe optical cable belongs to communication optical fiber construction of cable technical field.

The fiber optic cables of prior art; though all include protective seam; but these protective seams are made up of glass fiber reinforced plastics (FRP) or reinforced glass fiber reinforced plastics materials such as (GRP) a bit; some adopts rigid material compositions such as finer wire; the former bending property is not good, easily continue split, anti-gunslinging is poor, latter's Heavy Weight, not portable.For example Chinese patent discloses a kind of name and has been called " a kind of cable of anti-steam ", the patent No. utility model patent for " ZL92103946 ", form by optical fiber core, filling material and two-layer external protection, its inner protective layer is made of plastics, external protection is made of stainless steel material, that this kind cable has is heat-resisting, waterproof, advantage that hardness is big, but there is following shortcoming simultaneously: 1. big, the Heavy Weight of volume, not flexible, carry inconvenience; 2. processing difficulties, cost height; 3. the sheath easy fracture makes cable core yielding under external force effects such as gunslinging, thereby influences the parameter of optical cable.

The purpose of this utility model is in order to overcome the shortcoming of prior art, a kind of anti-gunslinging type band cover pipe optical cable that is applicable to emergent, field operations and built on stilts mechanics of communication is provided, and this optical cable has that anti-impact force is strong, stretch-proof, lateral pressure resistant, characteristics flexible, portable, applied widely and with low cost.

The purpose of this utility model can reach by taking following measure: anti-gunslinging type band cover pipe optical cable, comprise cable core and outer jacket, its design feature is: cable core comprises optical fiber, sleeve pipe and aramid fiber sheath, optical fiber is arranged in cannula cavity, and the aramid fiber sheath wraps up sleeve pipe and closely contacts with outer jacket.

Design feature of the present utility model also has:

Sleeve pipe is oil-filled, forms filling type pine sleeve pipe.

Cable core comprises many loose sleeve pipes that contain optical fiber, its center is provided with the center strengthening core, this center strengthening core is made of aramid fiber, the pine sleeve pipe adopts and twines combination or two-way stranded contact, between the adjacent loose sleeve pipe, between loose sleeve pipe and the aramid fiber sheath inwall packing elements is set, loose outside of sleeve scribbles petroleum jelly.

The contact position of aramid fiber sheath and outer jacket is provided with sheath, and sheath adopts pricks yarn or band.

Outer jacket adopts in polyurethane (PU), fluoroplastic, tygon (PE) material any.

Compared with prior art, the utlity model has following outstanding advantage:

The aramid fiber that anti-impact force is strong be evenly distributed on cable core around; the on the one hand effectively fierce impact of outer impulsive force such as anti-gunslinging; the protection cable core is unaffected, and optical cable has certain flexibility on the other hand, make optical cable easily stretch, flexible and do not damage optical cable.

2. adopt filling type pine sleeve pipe and loose outside of sleeve to be coated with petroleum jelly, make optical cable have good adaptive capacity to environment, high temperature or low temperature are very little to the influence of fading of optical fiber, make the bending property of optical cable better simultaneously, the stretch-proof ability is stronger.

3. volume is little, in light weight, easy to carry, and is with low cost; Be specially adapted to meet an urgent need, field operations and built on stilts mechanics of communication.

Below in conjunction with accompanying drawing the utility model is described in detail:

Fig. 1 is the structural representation of the utility model embodiment 1.

Fig. 2 is the structural representation of the utility model embodiment 2.

Fig. 3 is the structural representation of the utility model embodiment 3.

Fig. 4 is the structural representation of the utility model embodiment 4.

As can be seen from Figure 1, present embodiment is made up of cable core 1, outer jacket 2 and sheath 9, wherein cable core 1 comprises optical fiber 3, loose sleeve pipe 4, aramid fiber sheath 5, packing elements 7, center strengthening core 7, optical fiber 3 is arranged in loose sleeve pipe 4 inner chambers, the loose sleeve pipe 4 of aramid fiber sheath 5 parcels, sheath 9 closely contacts with outer jacket 2 between aramid fiber sheath 5 and outer jacket 2 and with aramid fiber sheath 5, and sheath 9 adopts pricks yarn or bands; Pine sleeve pipe 4 is oil-filled, form filling type pine sleeve pipe, optical fiber 3 can slide in loose sleeve pipe 4 under external force, indeformable, pine sleeve pipe 4 has many also around center strengthening core 6 two-way twisting together, center strengthening core 6 is made of aramid fiber, between the adjacent loose sleeve pipe 4, between loose sleeve pipe 4 and aramid fiber sheath 5 inwalls packing elements 7 is set, loose sleeve pipe 4 outsides scribble petroleum jelly 8; Outer jacket 2 adopts in polyurethane (PU), fluoroplastic, tygon (PE) material any.

Present embodiment is owing to adopt oil-filled loose sleeve pipe 4, the outside of pine sleeve pipe 4 scribbles petroleum jelly 8, optical fiber 3 has certain surplus length, during force-extension optical fiber 3 can be directly not stressed, can not be out of shape, therefore many loose sleeve pipes 4 (including optical fiber 1) twist together, compact conformation, optical cable have good adaptive capacity to environment, effectively reduce high temperature or the low temperature influence of fading to optical fiber; Because gentle the threading property of aramid fiber, anti-impact force are strong, so aramid fiber sheath 5 and center strengthening core 6, make optical cable not only have good bending property, extremely strong shock resistance, stretch-proof, lateral pressure resistant ability, and in light weight, carry and lay conveniently, outer jacket 2 and sheath 9 make optical cable have the excellent waterproof dustproof effect.So the utility model is specially adapted to meet an urgent need, field operations reach built on stilts mechanics of communication.

Other embodiment of the present utility model are the section radius that strengthen filling member 7, center strengthening core 6, and all the other are with embodiment 1.

Claims

1. the anti-gunslinging type band overlaps pipe optical cable, comprise cable core (1) and outer jacket (2), it is characterized in that: cable core (1) comprises optical fiber (3), sleeve pipe (4) and aramid fiber sheath (5), optical fiber (3) is arranged in sleeve pipe (3) inner chamber, and aramid fiber sheath (5) wraps up sleeve pipe (4) and closely contacts with outer jacket (2).

2. anti-gunslinging type band cover pipe optical cable according to claim 1, it is characterized in that: sleeve pipe (4) is oil-filled, forms filling type pine sleeve pipe (4).

3. anti-gunslinging type band cover pipe optical cable according to claim 2, it is characterized in that: cable core (1) comprises many loose sleeve pipes (4) that contain optical fiber (3), its center is provided with center strengthening core (6), this center strengthening core (6) is made of aramid fiber, pine sleeve pipe (4) adopts wound form combination or two-way stranded contact, between the adjacent loose sleeve pipe (4), between loose sleeve pipe (4) and aramid fiber sheath (5) inwall packing elements (7) is set, loose sleeve pipe (4) outside scribbles petroleum jelly (8).

4. anti-gunslinging type band cover pipe optical cable according to claim 3, it is characterized in that: aramid fiber sheath (5) is provided with sheath (9) with outer jacket (2) contact position, and sheath (9) adopts pricks yarn or band.

5. according to the described anti-gunslinging type band of arbitrary claim in the claim 1 to 4 cover pipe optical cable, it is characterized in that: outer jacket (2) adopts in polyurethane (PU), fluoroplastic, tygon (PE) material any.