CN213752113U - Photoelectric composite cable with double-layer sheath for field operations - Google Patents

Abstract

The utility model discloses a field operations are with photoelectric composite cable of double-deck sheath, including the cable core and in proper order the cladding protect unit and outer jacket in the cable core outside, cable in-core independent setting has optical unit and electric unit it has the non-metallic reinforcement of threadiness to protect to fill in optical unit and the electric unit clearance in the unit the inner wall of outer jacket is opened along its axial has a plurality of dashpots it has the foaming filling layer to protect to fill between unit and the outer jacket. The utility model discloses both provided optical transmission channel, provided electricity again and transmitted the passageway to, under the requirement that no metal was filled, adopt non-metal reinforcement of threadiness and foaming filling layer to fill in the cable core and in the restrictive coating, set up the dashpot, improve the holistic anti side pressure performance of photoelectric composite cable.

Description

Photoelectric composite cable with double-layer sheath for field operations

Technical Field

The utility model relates to an optical cable structural design field, concretely relates to field operations are with photoelectric composite cable of double-deck sheath.

Background

With the increase of the informatization construction demand of the military, a large number of information equipment are arranged, the interconnection among the equipment is very important, and especially under the severe environment, the field operation optical cable becomes a necessary communication medium under the field operation and the complex environment of the equipment army. The design requirement of the metal-free optical cable is increasingly important under the conditions of quick wiring or repeated winding and unwinding use in field operations and complex environments.

Because lack the metal as bearing structure among the current field operations optical cable, under complicated field environment condition, the optical cable is difficult to avoid being rolled by the heavy object in the use, such as military vehicle, or the oppression of heavy objects such as mountain area dropstone, can lead to it seriously and lose its communication function, the acquisition of mistake real-time information, for increasing field operations, the anti side pressure performance of field usage optical cable, adopt metal spiral armor structure more, but helical structure's shaping speed can lead to process time longer slowly, and the metal material also makes unit length weight improve, inconvenient carrying, metal structure makes the application of optical cable in thunderstorm area limited simultaneously.

In addition, the existing field operation optical cable is single in structural form, only an optical transmission channel is provided, and an electric power output channel cannot be provided in the field operation environment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a field operations is with photoelectric composite cable of double-deck sheath, both provided optical transmission channel, provided electricity transmission channel again to, under the requirement of no metal packing, adopt filiform non-metal reinforcement and foaming filling layer to fill in the cable core and in the restrictive coating, set up the dashpot, improve the holistic anti side pressure performance of photoelectric composite cable.

In order to solve the technical problem, the utility model provides a field operations is with photoelectric composite cable of double-deck sheath, include the cable core and in proper order the cladding protect unit and outer jacket outside the cable core, the cable in-core independently is provided with optical unit and electric unit it has the non-metallic reinforcement of threadiness to fill in the optical unit in the interior protection unit and the electric unit clearance the inner wall of outer jacket is opened along its axial has a plurality of dashpots it has the foaming filling layer to fill between interior protection unit and the outer jacket.

In a preferred embodiment of the present invention, the outer sheath further comprises at least two inner sheath units disposed inside the outer sheath, and a plurality of the inner sheath units are independently disposed side by side, and the outer sheath is flat.

In a preferred embodiment of the present invention, the inner protection unit is made of a low smoke halogen-free flame retardant polyolefin material.

In a preferred embodiment of the present invention, the outer protective layer is a TPU sheath with low heat capacity.

In a preferred embodiment of the present invention, the optical unit further includes a fiber core and a cladding layer covering the fiber core.

In a preferred embodiment of the present invention, it is further included that the electrical unit is a feeder.

In a preferred embodiment of the present invention, the foaming filling layer further includes a plurality of bubbles formed inside by a foaming agent.

In a preferred embodiment of the present invention, it further comprises that the linear non-metal reinforcement is aramid yarn.

The utility model has the advantages that:

the optical unit and the electric unit are integrated in the cable core, not only an optical transmission channel is provided, but also an electric transmission channel is provided, and the optical unit and the electric unit are independently arranged and can be separately peeled off for use;

the utility model adopts the linear non-metal reinforcement and the foaming filling layer to fill the cable core and the sheath layer under the requirement of no metal filling, and sets up the buffer groove, and adopts the linear non-metal reinforcement to increase the tensile resistance of the optical cable, thereby greatly increasing the spanning distance and the tensile resistance of the optical cable; the buffer groove is matched with the foaming filling layer, so that the side pressure resistance of the whole photoelectric composite cable is improved.

Drawings

Fig. 1 is an embodiment of the field operation double-jacketed optical/electrical composite cable of the present invention;

fig. 2 shows another embodiment of the field operations double-jacketed optical/electrical composite cable of the present invention.

The reference numbers in the figures illustrate: 1. a light unit; 2. an electrical unit; 3. a linear non-metallic reinforcement; 4. an inner protection unit; 5. a foam filling layer; 6. a buffer tank; 7. an outer jacket.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1, an embodiment of the field operations double-layer sheath photoelectric composite cable of the present invention includes a cable core, an inner protection unit 4 and an outer protection layer 7 sequentially covering the cable core, wherein the cable core is independently provided with an optical unit 1 and an electrical unit 2, which provide both an optical transmission channel and an electrical transmission channel, and the optical unit 1 and the electrical unit 2 are independently arranged and can be separately stripped for use; the optical cable protection device is characterized in that a linear nonmetal reinforcing part 3 is filled in a gap between an optical unit 1 and an electric unit 2 in the inner protection unit 4, the linear nonmetal reinforcing part 3 is adopted to increase the tensile resistance of the optical cable, the spanning distance and the tensile resistance of the optical cable are greatly increased, meanwhile, the linear nonmetal reinforcing part 3 does not influence the integral bending performance of the field operation optical cable, a plurality of buffer grooves 6 are formed in the inner wall of the outer protection layer 7 along the axial direction of the inner wall, a foaming filling layer 5 is filled between the inner protection unit 4 and the outer protection layer 7, and the buffer grooves 6 are matched with the foaming filling layer 5 to improve the integral side pressure resistance of the photoelectric composite cable.

Referring to fig. 2, according to another embodiment of the optical/electrical composite cable with a double-layered sheath for field operations of the present invention, at least two inner sheath units 4 are disposed in an outer sheath 7, each of the inner sheath units 4 includes an optical unit 1 and an electrical unit 2, which are independently disposed, and a linear non-metallic reinforcement 3 filled in a gap between the optical unit 1 and the electrical unit 2, a plurality of the inner sheath units 4 are independently disposed side by side, a foam filling layer 5 is filled in a gap between the plurality of inner sheath units 4, the outer sheath 7 is flat, a plurality of buffer grooves 6 are formed in an inner wall of the outer sheath 7 along an axial direction thereof to increase the number of the inner sheath units 4, thereby increasing an optical transmission channel and an electrical transmission channel, and the plurality of inner sheath units are independently disposed side by side and coated in the outer sheath 7, the entire optical/electrical composite cable is flat in appearance, thereby facilitating quick paying-off during laying, and is convenient for rolling after laying is finished.

Specifically, in the two embodiments, the optical unit 1 includes a fiber core and a tight cladding layer covering the fiber core, and the tight cladding layer can play a role in buffering and protecting the fiber core on one hand, and on the other hand, the tight cladding layer can also play a certain role in blocking water.

Specifically, in the two embodiments, the electrical unit 2 is a power supply line, which can achieve a good power transmission effect.

Specifically, in the two embodiments, the foam filling layer 5 generates a plurality of bubbles by the foaming agent, and the bubbles are squeezed during the lateral pressure process, so that a large squeezing space can be provided, and the lateral pressure resistance effect can be achieved.

Specifically, in the two embodiments, the linear non-metal reinforcement 3 is aramid yarn, and the aramid yarn has special properties such as low density, high tensile modulus, high breaking strength and low breaking elongation; at higher temperatures, the composition retains inherent stability, very low shrinkage, low creep and very high glass transition temperatures, and additionally has high corrosion resistance, is non-conductive, and has strong chemical resistance in addition to strong acids and bases.

In a complex use environment of field operations, the field operation optical cable also needs to have flame retardant performance and abrasion resistance, so in the two embodiments, the inner protection unit 4 is made of a low-smoke halogen-free flame retardant polyolefin material to prevent the optical cable from being ignited and burnt; the outer jacket 7 adopts a low heat capacity TPU sheath, the low heat capacity TPU sheath is wear-resistant and has higher contractility, damage to the optical cable caused by friction during laying is resisted, and unit cable separation caused by non-malicious pulling during laying of the optical cable is avoided.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (7)

1. The photoelectric composite cable with the double-layer sheath for field operations is characterized by comprising a cable core, an inner protection unit and an outer protection layer, wherein the inner protection unit and the outer protection layer are sequentially coated outside the cable core, an optical unit and an electric unit are independently arranged in the cable core, a linear nonmetal reinforcing part is filled in a gap between the optical unit and the electric unit in the inner protection unit, a plurality of buffer grooves are formed in the inner wall of the outer protection layer along the axial direction of the inner wall of the outer protection layer, and a foaming filling layer is filled between the inner protection unit and the outer protection layer.

2. The field operations double-jacketed optical/electrical composite cable according to claim 1, wherein at least two inner sheath units are provided in the outer sheath, the inner sheath units are independently provided side by side, and the outer sheath is flat.

3. The field operations double-jacketed optical-electrical composite cable according to claim 1, wherein the inner jacket is made of a low-smoke halogen-free flame-retardant polyolefin material.

4. The field operations double jacketed optical-electrical composite cable of claim 1, wherein the optical element includes a core and a tight-clad layer surrounding the core.

5. The field operations double-jacketed optical-electrical composite cable of claim 1, wherein the electrical unit is a feeder.

6. The field operations double jacketed optical/electrical composite cable of claim 1 wherein the foam filler layer has a plurality of bubbles formed therein by a foaming agent.

7. The field operations double jacketed opto-electrical composite cable of claim 1 wherein the filamentary non-metallic reinforcement is aramid yarn.

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