CN214750979U

CN214750979U - All-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable

Info

Publication number: CN214750979U
Application number: CN202120882756.9U
Authority: CN
Inventors: 魏志明; 李恒兵; 祝宜军
Original assignee: Hefei Lasun Communication Co ltd
Current assignee: Hefei Lasun Communication Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-11-16
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses an all-dielectric 8 font self-supporting indoor and outdoor dual-purpose optical cable belongs to self-supporting optical cable field, strengthen core (FRP) including nonmetal center, the outside of nonmetal center strengthening core (FRP) is provided with loose sleeve pipe, loose sheathed tube inside is provided with optic fibre, loose sheathed tube outside is provided with the filler, the outside of filler is provided with the water blocking layer, the outside of water blocking layer is provided with fire-resistant insulating layer, the outside of fire-resistant insulating layer is provided with outer fire-retardant fire-resistant sheath, the outside of outer fire-retardant fire-resistant sheath is provided with nonmetal reinforcement (aramid fiber), is connected with outer sheath through the suspender that sets up, and to the span installation protection of optical cable, prevent that the optical cable fracture from leading to the separation from top to bottom, through the fire-resistant insulating layer that sets up, play the thermal-insulated effect of preventing fires, fire-retardant fire-resistant sheath can reduce flammability, The fire disaster can be prevented from spreading rapidly, and the optical cable can be protected.

Description

All-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable

Technical Field

The utility model relates to a self-supporting optical cable field, more specifically say, relate to an indoor outer dual-purpose optical cable of 8 font self-supporting of full medium.

Background

The optical cable is a communication cable component which uses one or more optical fibers as transmission media and can be used independently or in groups, and the self-supporting optical cable means that a self-reinforcing member of the optical cable can bear self weight and external load, and the mechanical strength of the optical cable is light and heavy due to the self-supporting optical cable.

When an existing 8-shaped self-supporting optical cable is installed and used, the optical cable is 8-shaped, the phenomenon that the optical cable is broken can occur when the optical cable is used, if the optical cable is broken, the upper layer and the lower layer of the optical cable can be separated, normal use of the optical cable is affected, certain adverse effects are brought to the use process of people, and therefore the 8-shaped all-dielectric indoor and outdoor dual-purpose optical cable is provided.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide an indoor outer dual-purpose optical cable of 8 font self-supporting of full medium possesses the optical cable that prevents the optical cable fracture and lead to and separates from top to bottom, and the thermal-insulated advantage of fire prevention has solved the problem of background art.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides an all-dielectric font self-supporting indoor outer dual-purpose optical cable, strengthens the core including nonmetal center, nonmetal center is strengthened the outside of core and is provided with loose tube, loose tube's inside is provided with optic fibre, loose tube's outside is provided with the filler, the outside of filler is provided with the water blocking layer, the outside of water blocking layer is provided with fire-resistant insulating layer, fire-resistant insulating layer's outside is provided with outer fire-retardant fire-resistant sheath, the outside of outer fire-retardant fire-resistant sheath is provided with nonmetal reinforcement.

Preferably, outer fire-retardant fire-resistant sheath includes suspender, upper polyethylene sheath, iron wire and lower floor's polyethylene sheath, the iron wire is located suspender, upper polyethylene sheath and lower floor's polyethylene sheath's inside, upper polyethylene sheath is located the upper end of suspender, lower floor's polyethylene sheath is located the lower extreme of suspender.

Preferably, the outside of iron wire and the inside of upper polyethylene sheath are fixed connection, the outside of iron wire and the inside of suspender are fixed connection, the outside of iron wire and the inside of lower floor's polyethylene sheath are fixed connection, the upper end of suspender and the lower extreme of upper polyethylene sheath are fixed connection, the upper end of suspender and the upper end of lower floor's polyethylene sheath are fixed connection.

Preferably, the fire-resistant heat-insulating layer comprises a heat-insulating coating, a high-temperature-resistant coating, a fire-retardant coating and a fire retardant, the high-temperature-resistant coating is located outside the heat-insulating coating, the fire-retardant coating is located outside the heat-insulating coating, and the fire retardant is located outside the fire-retardant coating.

Preferably, the interior of the high-temperature-resistant coating is fixedly connected with the exterior of the heat-insulating coating, the interior of the fireproof coating is fixedly connected with the exterior of the heat-insulating coating, and the interior of the flame retardant is fixedly connected with the exterior of the fireproof coating.

Preferably, the inside of the filler is fixedly connected with the outside of the loose tube, the inside of the loose tube is fixedly connected with the outside of the optical fiber, and the outside of the filler is fixedly connected with the inside of the water blocking layer.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is through the outer fire-retardant fire-resistant sheath that sets up, carry out span installation protection to the optical cable, prevent that the optical cable fracture from leading to the optical cable separation from top to bottom, outer fire-retardant fire-resistant sheath includes the suspender, upper polyethylene sheath, iron wire and lower floor's polyethylene sheath, be connected upper polyethylene sheath and lower floor's polyethylene sheath through the suspender, upper polyethylene sheath, the suspender is the polyethylene material with lower floor's polyethylene sheath, its inside iron wire that all is provided with, if the suspender breaks, its inside iron wire then can continue to be connected upper polyethylene sheath and lower floor's polyethylene sheath, prevent the optical cable separation from top to bottom.

(2) This scheme is through the fire-resistant insulating layer that sets up, play the thermal-insulated effect of fire prevention, protect the optical cable, fire-resistant insulating layer is thermal-insulated coating from inside to outside in proper order, high temperature resistant coating, fire prevention coating and fire retardant, fire prevention coating can reduce by the flammability on coating material surface, retard spreading rapidly of conflagration, high temperature resistant coating can bear the temperature more than 308 degrees centigrade for a long time, and can keep certain physicochemical properties, make and normally play the effect by the protected object in high temperature environment, make the optical cable have good thermal-insulated performance of fire prevention.

Drawings

Fig. 1 is a schematic view of the overall structure of an all-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable of the present invention;

FIG. 2 is a schematic structural view of an outer flame-retardant and fire-resistant sheath of an all-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable of the present invention;

FIG. 3 is a schematic structural view of a fire-resistant thermal insulation layer of an all-dielectric 8-shaped self-supporting indoor/outdoor dual-purpose optical cable according to the present invention;

fig. 4 is a schematic front view of the 8-shaped self-supporting indoor and outdoor dual-purpose optical cable of the present invention.

The reference numbers in the figures illustrate:

1. a non-metallic central reinforcement core; 2. a water resistant layer; 3. an outer flame-retardant and fire-resistant sheath; 301. a sling; 302. an upper polyethylene jacket; 303. iron wires; 304. a lower polyethylene jacket; 4. a refractory thermal insulation layer; 401. heat-insulating coating; 402. high temperature resistant coating; 403. a fire retardant coating; 404. a flame retardant; 5. loosening the sleeve; 6. a non-metallic reinforcement; 7. a filler; 8. an optical fiber.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, an all-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable comprises a non-metal central reinforced core 1, wherein the non-metal central reinforced core 1 is made of FRP, compared with a metal core, the FRP has high tensile strength, light weight and low elongation, a loose tube 5 is arranged outside the non-metal central reinforced core 1, an optical fiber 8 is arranged inside the loose tube 5, a filler 7 is arranged outside the loose tube 5, a water-blocking layer 2 is arranged outside the filler 7, a fire-resistant heat-insulating layer 4 is arranged outside the water-blocking layer 2, an outer flame-resistant and fire-resistant sheath 3 is arranged outside the fire-resistant heat-insulating layer 4, a non-metal reinforcement 6 is arranged outside the outer flame-resistant and fire-resistant sheath 3, the non-metal reinforcement can be made of aramid fiber, the aramid fiber is a novel high-tech synthetic fiber, and has excellent performances of ultra-high strength, high modulus, high temperature resistance, acid resistance, alkali resistance, light weight and the like, the strength of the water-blocking waterproof tape is 5-6 times that of a steel wire, the modulus of the water-blocking waterproof tape is 2-3 times that of the steel wire or glass fiber, the toughness of the water-blocking waterproof tape is 2 times that of the steel wire, the weight of the water-blocking waterproof tape is only about 1/5 times that of the steel wire, the water-blocking waterproof tape does not decompose or melt at the temperature of 560 ℃, the water-blocking waterproof tape has good insulating property and ageing resistance, and has a long life cycle, and the water-blocking waterproof tape 2 is a water-blocking tape which is formed by compounding a layer of semi-conductive non-woven fabric and super absorbent resin.

Further, outer fire-retardant fire-resistant sheath 3 includes suspender 301, upper polyethylene sheath 302, iron wire 303 and lower floor's polyethylene sheath 304, iron wire 303 is located suspender 301, upper polyethylene sheath 302 and lower floor's polyethylene sheath 304 inside, upper polyethylene sheath 302 is located suspender 301's upper end, lower floor's polyethylene sheath 304 is located suspender 301's lower extreme, through the outer fire-retardant fire-resistant sheath 3 that sets up, protect the optical cable, prevent that the optical cable fracture from leading to the optical cable separation from top to bottom.

Furthermore, the outside of the iron wire 303 is fixedly connected with the inside of the upper polyethylene sheath 302, the outside of the iron wire 303 is fixedly connected with the inside of the sling 301, the outside of the iron wire 303 is fixedly connected with the inside of the lower polyethylene sheath 304, the upper end of the sling 301 is fixedly connected with the lower end of the upper polyethylene sheath 302, the upper end of the sling 301 is fixedly connected with the upper end of the lower polyethylene sheath 304, and if the sling 301 is broken, the inner iron wire 303 can continuously connect the upper polyethylene sheath 302 with the lower polyethylene sheath 304 to prevent the optical cable from being separated up and down.

Further, the fireproof heat insulation layer 4 comprises a heat insulation coating 401, a high temperature resistant coating 402, a fireproof coating 403 and a flame retardant 404, the high temperature resistant coating 402 is located outside the heat insulation coating 401, the fireproof coating 403 is located outside the heat insulation coating 401, the flame retardant 404 is located outside the fireproof coating 403, and the fireproof heat insulation layer 4 plays a fireproof and heat insulation role and protects the optical cable.

Furthermore, the interior of the high-temperature resistant coating 402 is fixedly connected with the exterior of the heat insulation coating 401, the interior of the fireproof coating 403 is fixedly connected with the exterior of the heat insulation coating 401, and the interior of the flame retardant 404 is fixedly connected with the exterior of the fireproof coating 403, so that the flammability of the surface of the coated material is reduced, and the rapid spread of fire is retarded.

Further, the inside of the filler 7 is fixedly connected with the outside of the loose tube 5, the inside of the loose tube 5 is fixedly connected with the outside of the optical fiber 8, the outside of the filler 7 is fixedly connected with the inside of the water blocking layer 2, and the loose tube 5 is used for protecting the optical fiber 8.

The working principle is as follows: the all-dielectric layer stranded 8-shaped self-supporting optical cable comprises a non-metal central reinforced core 1, wherein the non-metal central reinforced core 1 is made of FRP (fiber reinforced Plastic), compared with a metal core, the FRP is high in tensile strength, light in weight and low in elongation, a loose tube 5 is arranged outside the non-metal central reinforced core 1, an optical fiber 8 is arranged inside the loose tube 5, a filler 7 is arranged outside the loose tube 5, a water blocking layer 2 is arranged outside the filler 7, the water blocking layer 2 is a water blocking tape, the water blocking tape is formed by compounding a layer of semi-conductive non-woven fabric and high water absorption resin, a fire-resistant heat insulating layer 4 is arranged outside the water blocking layer 2, the optical cable is protected by the arranged fire-resistant heat insulating layer 4, the fire-resistant heat insulating layer 4 sequentially comprises a heat insulating coating 401, a high-temperature resistant coating 402, a fire-resistant coating 403 and a fire retardant 404 from inside to outside, and the fire-resistant coating 403 can reduce the flammability of the surface of a coated material, Retarding the rapid spread of fire, enabling the high-temperature resistant coating 402 to bear the temperature of more than 380 ℃ for a long time and maintain certain physical and chemical properties, enabling the protected object to normally play a role in a high-temperature environment, enabling the optical cable to have good fireproof and heat-insulating properties, arranging an outer flame-retardant fire-resistant sheath 3 outside a fire-resistant heat-insulating layer 4, protecting the optical cable through the arranged outer flame-retardant fire-resistant sheath 3 to prevent the optical cable from being separated from top to bottom due to the breakage of the optical cable, wherein the outer flame-retardant fire-resistant sheath 3 comprises a sling 301, an upper polyethylene sheath 302, an iron wire 303 and a lower polyethylene sheath 304, connecting the upper polyethylene sheath 302 with the lower polyethylene sheath 304 through the sling 301, the upper polyethylene sheath 302, the sling 301 and the lower polyethylene sheath 304 are made of polyethylene materials, the iron wire 303 is arranged inside the sling 301, and if the sling 301 is broken, the inner iron wire 303 can continuously connect the upper polyethylene sheath 302 with the lower polyethylene sheath 304, prevent the optical cable from separating from top to bottom, the inside of outer fire-retardant fire-resistant sheath 3 is provided with nonmetal reinforcement 6, nonmetal reinforcement 6 can adopt aramid fiber, aramid fiber is a novel high-tech synthetic fiber, the super strength has, high modulus and high temperature resistant, acid and alkali resistant, fine performance such as light in weight, its intensity is 5 ~ 6 times of steel wire, the modulus is 2 ~ 3 times of steel wire or glass fiber, toughness is 2 times of steel wire, and weight only is about 1/5 of steel wire, under the temperature of 560 degrees, do not decompose, do not melt. It has good insulating property and ageing resistance, and has long life cycle.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an all-dielectric 8 font self-supporting indoor outer dual-purpose optical cable, includes nonmetal center reinforcement core (1), its characterized in that: the outside of nonmetal center core (1) is provided with loose sleeve pipe (5), the inside of loose sleeve pipe (5) is provided with optic fibre (8), the outside of loose sleeve pipe (5) is provided with filler (7), the outside of filler (7) is provided with water blocking layer (2), the outside of water blocking layer (2) is provided with fire-resistant insulating layer (4), the outside of fire-resistant insulating layer (4) is provided with outer fire-retardant fire-resistant sheath (3), the inside of outer fire-retardant fire-resistant sheath (3) is provided with nonmetal reinforcement (6).

2. The all-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable according to claim 1, wherein: outer fire-retardant fire-resistant sheath (3) include suspender (301), upper polyethylene sheath (302), iron wire (303) and lower floor's polyethylene sheath (304), iron wire (303) are located suspender (301), upper polyethylene sheath (302) and the inside of lower floor's polyethylene sheath (304), upper polyethylene sheath (302) are located the upper end of suspender (301), lower floor's polyethylene sheath (304) are located the lower extreme of suspender (301).

3. The all-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable according to claim 2, wherein: the outside of iron wire (303) is fixed connection with the inside of upper polyethylene sheath (302), the outside of iron wire (303) is fixed connection with the inside of suspender (301), the outside of iron wire (303) is fixed connection with the inside of lower floor's polyethylene sheath (304), the upper end of suspender (301) is fixed connection with the lower extreme of upper polyethylene sheath (302), the upper end of suspender (301) is fixed connection with the upper end of lower floor's polyethylene sheath (304).

4. The all-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable according to claim 1, wherein: the fireproof heat insulation layer (4) comprises a heat insulation coating (401), a high-temperature-resistant coating (402), a fireproof coating (403) and a flame retardant (404), wherein the high-temperature-resistant coating (402) is located outside the heat insulation coating (401), the fireproof coating (403) is located outside the heat insulation coating (401), and the flame retardant (404) is located outside the fireproof coating (403).

5. The all-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable according to claim 4, wherein: the interior of the high-temperature-resistant coating (402) is fixedly connected with the exterior of the heat-insulating coating (401), the interior of the fireproof coating (403) is fixedly connected with the exterior of the heat-insulating coating (401), and the interior of the flame retardant (404) is fixedly connected with the exterior of the fireproof coating (403).

6. The all-dielectric 8-shaped self-supporting indoor and outdoor dual-purpose optical cable according to claim 1, wherein: the inner part of the filler (7) is fixedly connected with the outer part of the loose tube (5), the inner part of the loose tube (5) is fixedly connected with the outer part of the optical fiber (8), and the outer part of the filler (7) is fixedly connected with the inner part of the water-blocking layer (2).