CN219266593U

CN219266593U - Metal armored optical cable for prefabricated optical cable

Info

Publication number: CN219266593U
Application number: CN202221402864.2U
Authority: CN
Inventors: 黄洁; 黄健波; 赵秋香
Original assignee: Sichuan Huiyuan Optical Communications Co Ltd
Current assignee: Sichuan Huiyuan Optical Communications Co Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2023-06-27
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses a metal armored optical cable for a prefabricated optical cable, which relates to the technical field of communication optical cables, and comprises an optical fiber, a sleeve, a filling layer, an armored reinforcing layer and an outer protective sleeve which are sequentially arranged from inside to outside, wherein water-blocking layers are arranged on the inner side and the outer side of the sleeve, the optical fiber, the filling layer, the water-blocking layers, the armored reinforcing element layer and the outer protective sleeve adopt a full-dry water-blocking structure, water-blocking materials are arranged in the water-blocking layer, filling reinforcing pieces are arranged in the filling layer, armored reinforcing pieces are arranged in the armored reinforcing layer, filling reinforcing pieces are arranged in the filling layer, an aramid yarn twisted layer is arranged between the armored reinforcing layer and the outer protective sleeve, the armored reinforcing elements are stainless steel spiral armors, and the outer protective sleeve is made of low-smoke halogen-free flame-retardant polyolefin.

Description

Metal armored optical cable for prefabricated optical cable

Technical Field

The utility model relates to the technical field of communication optical cables, in particular to a metal armored optical cable for a prefabricated optical cable.

Background

At present, the society is entering the network era, the information technology is rapidly developed, and the urban area network and the access network are rapidly developed, so that underground pipeline resources are short, and the traditional core number optical cable is difficult to meet the demands of users; because of the continuous development of the current communication technology, the structure of the communication network shows a diversified trend, especially under the large environment of multi-network integration, the rapid expansion of multimedia services such as data communication, video on demand, video call, teleconference and the like, but simultaneously, the number of laid optical cables is increased, the available area is gradually decreased, the environment to be used is also increased, the laid circuit environment is also more and more complex, and the requirements on the multi-core number, branching performance, flame retardant level and water blocking performance of the optical cable are all higher

The intelligent substation requires total station information digitization, basic functions such as information transmission, acquisition, measurement, control, protection, metering and monitoring can be automatically completed, advanced functions such as real-time automatic control, intelligent regulation, online analysis, collaborative interaction and the like of a power grid are supported according to requirements, the intelligent substation is required to be more stable in signal transmission, faster in data transmission and safer and more reliable in transmission of an optical cable.

The prefabricated optical cable is used as an important communication main body for realizing interconnection of a secondary prefabricated cabin, an intelligent control cabinet, an indoor secondary screen cabinet or cabin equipment and a plug optical cable assembly, higher requirements are provided for the structure of the prefabricated optical cable, and an indoor cable generally adopts a tight-sleeved optical fiber and aramid yarn armor structure, but the optical fibers have poor water resistance, do not have the rat-proof performance, and have larger outer diameter.

Disclosure of Invention

The utility model aims to solve the technical problems that: the metal armored optical cable has good water resistance and rat-proof performance.

The technical scheme adopted for solving the problems is as follows: the utility model provides a prefabricated optical cable is with metal armoured optical cable, includes armoured optical cable, the armoured optical cable is equipped with optic fibre, filling layer, sleeve pipe, armoured enhancement layer and oversheath from inside to outside in proper order, all be equipped with the water-blocking layer on the inside and outside both sides of sleeve pipe, two-layer water-blocking layer can make the effect that blocks water better, optic fibre, water-blocking layer, armoured enhancement layer, filling layer and oversheath adopt the structure that blocks water entirely, and the structure that blocks water entirely guarantees that the optical cable has better water blocking ability to be convenient for the preparation connector, be equipped with the material that blocks water in the water, be equipped with armoured enhancement component in the armoured enhancement layer, be equipped with the filling reinforcement in the filling layer, the filling reinforcement can make the optical cable have better insulating effect and reach better fire prevention effect, armoured enhancement component is stainless steel spiral armoured, and stainless steel spiral armoured structure is soft, and lateral pressure resistance is strong to have better protection against rodents performance, the material of oversheath is low smoke and halogen-free flame retardant polyolefin, makes the optical cable can use indoor.

Preferably: the optical fiber is a coated optical fiber, the coated optical fiber is a single-mode optical fiber or a multi-mode optical fiber, the core number of the optical fiber is 1-48 cores, and the single-mode optical fiber or the multi-mode optical fiber can be used for manufacturing an optical cable according to different requirements.

Preferably: the outer diameters of the armored optical cables are 7.00mm-8.0mm, the armored optical cables are small in outer diameter and light in weight, good in flexibility and convenient for wiring of the optical cables.

Preferably: the water-blocking material is a water-blocking tape, and the water-blocking tape enables the optical cable to have better water-blocking performance.

Preferably: the filling reinforcement is an aramid yarn twisting layer, and the spinning wheel can better protect the optical cable from being broken in the pulling process.

Preferably: the sleeve adopts a loose sleeve structure, and the loose sleeve structure can better protect the optical cable.

The beneficial effects of the utility model are as follows:

1. the optical fiber, the filling reinforcement, the water-blocking material, the armored reinforcement element and the outer sheath adopt a full-dry water-blocking structure, and the full-dry water-blocking structure ensures that the prefabricated optical cable has better water-blocking property and is convenient for manufacturing the connector;

2. the outer sheath is made of low-smoke halogen-free flame-retardant polyolefin, so that the optical cable is convenient for indoor use;

3. the armor reinforcing element is stainless steel spiral armor, the stainless steel spiral armor structure is soft, lateral pressure resistance is strong, and the armor reinforcing element has good rat-proof performance.

Description of the drawings:

FIG. 1 is a cross-sectional view of a metal armored fiber optic cable for a preformed fiber optic cable of the present utility model;

fig. 2 is a schematic structural view of a metal armored cable for a prefabricated optical cable according to the present utility model.

In fig. 1-2: 1. an optical fiber; 2. a sleeve; 3. a water blocking layer; 301. a water blocking material; 4. a filling layer; 5. an armor reinforcement layer; 501. armor reinforcement elements; 6. an outer sheath; 7. and an aramid yarn stranding layer.

Detailed Description

The technical scheme of the present utility model is described in detail below with reference to the accompanying drawings.

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, which are simplified schematic diagrams illustrating the basic structure of the present utility model by way of illustration only, and thus show only the structures related to the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 2: the utility model provides a technical scheme, which comprises an armored optical cable, wherein an optical fiber 1, a filling layer 4, a sleeve 2, an armored reinforcing layer 5 and an outer sheath 6 are sequentially arranged in the armored optical cable from inside to outside, water blocking layers 3 are arranged on the inner side and the outer side of the sleeve 2, the two water blocking layers 3 can enable the water blocking effect to be better, the optical fiber 1, the water blocking layers 3, the armored reinforcing layer 5, the filling layer 4 and the outer sheath 6 adopt a full-dry water blocking structure, the full-dry water blocking structure ensures that the prefabricated optical cable has better water blocking performance, a connector is convenient to manufacture, water blocking materials 301 are arranged in the water blocking layer 3, an armored reinforcing element 501 is arranged in the armored reinforcing layer 5, a filling reinforcing piece is arranged in the filling layer 4, the filled reinforcing piece enables the optical cable to have better insulation effect and achieve better fireproof effect, the armored reinforcing element 501 is a stainless steel spiral armor structure, the anti-strong side pressure is soft, the armored cable has better rat-proof performance, the material of the outer sheath 6 is a low-smoke halogen-free flame-retardant polyolefin, and the optical cable can be used indoors.

In the device, the optical fiber 1 is a coated optical fiber, the coated optical fiber is a single-mode optical fiber or a multi-mode optical fiber, the core number of the optical fiber is 1-48 cores, and the single-mode optical fiber or the multi-mode optical fiber can be used for manufacturing an optical cable according to different requirements.

The outer diameter of the armored optical cable is 7.00mm-8.00mm, the outer diameter of the armored optical cable is smaller, the weight is light, the flexibility is good, and the wiring of the optical cable is facilitated.

The water blocking material 301 is a water blocking tape, and the water blocking tape enables the optical cable to have better water blocking performance.

The filling reinforcement is the aramid yarn-twisting layer 7, and the aramid yarn-twisting layer 7 can better protect the optical cable from being broken in the pulling process.

The sleeve 2 adopts a loose sleeve structure, and the loose sleeve structure can better protect the optical cable.

Working principle:

the armored optical cable is of a layered structure and is tightly connected between each layer, so that the outer diameter of the armored optical cable is reduced, the armored optical cable uses a low-smoke halogen-free flame-retardant polyolefin material as the material of the outer sheath 6, the optical cable can be used indoors or outdoors, the aramid yarn-twisting layer 7 is arranged in the outer sheath 6, the optical cable can be better protected from being damaged, the waterproof layer 3 and the sleeve 2 are arranged in the optical cable, the waterproof performance of the optical cable is better, the lateral pressure resistance of the stainless steel spiral armor is strong, and the stainless steel spiral armor has better rat-proof performance.

The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.

Claims

1. The utility model provides a prefabricated optical cable is with metal armor optical cable, includes armor optical cable, its characterized in that: the armored optical cable is characterized in that an optical fiber (1), a filling layer (4), a sleeve (2), an armored reinforcing layer (5) and an outer sheath (6) are sequentially arranged from inside to outside, a water blocking layer (3) is arranged on the inner side and the outer side of the sleeve (2), the optical fiber (1), the water blocking layer (3), the armored reinforcing layer (5), the filling layer (4) and the outer sheath (6) adopt a full-dry water blocking structure, a water blocking material (301) is arranged in the water blocking layer (3), an armored reinforcing element (501) is arranged in the armored reinforcing layer (5), a filling reinforcing piece is arranged in the filling layer (4), the armored reinforcing element (501) is stainless steel spiral armor, and the outer sheath (6) is made of low-smoke halogen-free flame-retardant polyolefin.

2. A metal armored fiber optic cable for a prefabricated fiber optic cable as claimed in claim 1, wherein: the optical fiber (1) is a coated optical fiber, the coated optical fiber is a single mode optical fiber or a multimode optical fiber, and the core number of the optical fiber (1) is 1-48 cores.

3. A metal armored fiber optic cable for a prefabricated fiber optic cable as claimed in claim 2, wherein: the outer diameters of the armored optical cables are 7.00mm-8.0mm.

4. A metal armored fiber optic cable for a prefabricated fiber optic cable as claimed in claim 1, wherein: the water-blocking material (301) is a water-blocking tape.

5. A metal armored fiber optic cable for a prefabricated fiber optic cable as claimed in claim 1, wherein: the filling reinforcement is an aramid yarn twisted layer (7).

6. A metal armored fiber optic cable for a prefabricated fiber optic cable as claimed in claim 1, wherein: the sleeve (2) adopts a loose sleeve structure.