CN209690573U - A kind of detachable plastic optical fiber inside cable - Google Patents

Abstract

The utility model relates to a kind of detachable plastic optical fiber inside cables; the cable includes fiber unit and plastic optical fiber unit; fiber unit and plastic optical fiber unit are arranged in parallel and have oversheath in external sheath; it is closely coupled between oversheath; cable cross-section is in 8-shaped; wherein fiber unit is made of equally distributed aramid fiber, oversheath outside more silica fibres and optical fiber, and it can also be tight tube fiber that silica fibre, which can be more colored optical fibers, and the outer wall of plastic optical fiber ontology is coated with oversheath protection；The utility model simple to install, it is highly-safe, connectivity is good the features such as, can easily pass through macroscopic feux rouges, facilitate installation and daily maintenance, have good supplement for the use of silica fibre.Restrictive coating between fiber unit and plastic optical fiber unit has good separation property, and tearing strength is 10N or less.

Description

A kind of detachable plastic optical fiber inside cable

[technical field]

The utility model relates to inside cable technical field, specifically a kind of detachable plastic optical fiber room light Cable.

[background technique]

With the development of field fiber, China's inside cable industry development is getting faster, the communication equipment in building, meter The demand to inside cable such as equipment of calculation machine, interchanger and terminal user is increasing, it is desirable that and it is also higher and higher, it is deposited If also having the demand of newly-increased inside cable in the indoor environment of miscellaneous inside cable, but due to converging in these environment The inside cable quantity always held is various, and using the inside cable at end, corresponding with its it is corresponding to summarize end position is more difficult capture Project, and part indoor environment residual space is limited, therefore also has bigger limitation for inside cable size itself, The transmission importance of some data of this external cause is relatively high, when accidental destruction occurs for optical cable, need to immediately find problem source, and most Repairing work is completed in the short time.

[utility model content]

The purpose of this utility model seeks to solve above-mentioned deficiency and provide a kind of detachable plastic optical fiber room light Cable, optical cable size itself is smaller, light weight and cost is low, and can both use parallel between plastic optical fiber and fiber unit, also Use can be torn, when fiber unit destroys, summarizes section or use using macroscopic 650nm wavelength red light irradiation Plastic optical fiber part is held, problem source can be quickly found, and implements to repair work.

A kind of detachable plastic optical fiber inside cable, including fiber unit 4 and plastic light are designed to achieve the above object Fine unit 7, the fiber unit 4 and plastic optical fiber unit 7 are arranged in parallel, and have oversheath, the oversheath in external sheath Between it is closely coupled, cable cross-section be in 8 fonts dry type structure, the fiber unit 4 include optical fiber 1, fibrous reinforcements 2 with And fiber unit sheath 3, the optical fiber 1 are successively arranged fibrous reinforcements 2, fiber unit sheath 3, the optical fiber 1 from the inside to the outside It is provided with single or more；The plastic optical fiber unit 7 includes plastic optical fiber 5, plastic optical fiber unit sheath 6, the plastic light Fine 5 outer walls fit closely plastic optical fiber unit sheath 6, and the fiber unit sheath 3 and plastic optical fiber unit sheath 6 are polychlorostyrene Ethylene or low smoke and zero halogen material layer.

Further, the optical fiber 1 is colored optical fiber or tight tube fiber.

Further, the tight tube fiber includes optical fiber and tight sleeve layer, and the tight sleeve layer is tightly placed in optical fiber periphery, described tight Jacket layer is made of polyvinyl chloride or low smoke and zero halogen material.

Further, the fibrous reinforcements 2 use more reinforcement original parts, and the more reinforcements original part is evenly distributed on light Fine surrounding.

Further, the sandwich layer of the plastic optical fiber 5 uses poly methyl methacrylate polymer, and covering is poly- using fluorination Close object.

Compared with the existing technology, size is small for the utility model, and flexibility is good, the bending radius of very little can be born, limited Space installation has not only facilitated but also easy, be the wiring of the current confined space, in building pin cord ideal network cable scheme.This Utility model simple to install, it is highly-safe, connectivity is good the features such as, can easily pass through macroscopic feux rouges, facilitate installation Construction and daily maintenance have a good supplement for the use of silica fibre, optical cable and optical fibres unit and plastic optical fiber unit it Between restrictive coating have good separation property, tearing strength be 10N hereinafter, cable structure size itself is small, flexibility is good, especially It is suitable for having laid the house wiring environment of all kinds of inside cables or equipment Interconnection Environment, is worthy of popularization.

[Detailed description of the invention]

Fig. 1 is the structural schematic diagram of the utility model；

In figure: 1, optical fiber 2, fibrous reinforcements 3, fiber unit sheath 4, fiber unit 5, plastic optical fiber 6, plastics Fiber unit sheath 7, plastic optical fiber unit.

[specific embodiment]

The utility model is made with reference to the accompanying drawing further explained below:

As shown in Fig. 1, the utility model includes: fiber unit 4, plastic optical fiber unit 7, and fiber unit 4 is placed in optical cable Side, fiber unit 4 includes optical fiber 1, fibrous reinforcements 2 and fiber unit sheath 3, and plastic optical fiber unit 7 is placed in optical cable The other side, plastic optical fiber unit 7 include plastic optical fiber 5, plastic optical fiber unit sheath 6, fiber unit sheath 3 and plastic optical fiber list First sheath 6 is closely coupled, mutually symmetrical, and the restrictive coating between fiber unit 4 and plastic optical fiber unit 7 has good separation Property, tearing strength is 10N or less.

It can also be tight tube fiber that wherein the optical fiber 1, which can be colored optical fiber, and the tight tube fiber, tight sleeve layer is tightly placed in Optical fiber periphery, the tight sleeve layer are made of polyvinyl chloride or low smoke and zero halogen material.Fibrous reinforcements 2 are former using more reinforcements Part, the more reinforcements original part are evenly distributed on optical fiber surrounding.Plastic optical fiber unit sheath 6 is closely attached to outside plastic optical fiber Layer.Fiber unit sheath 3 and plastic optical fiber unit sheath 6 are closely coupled, mutually symmetrical.Fiber unit 4 and plastic optical fiber unit 7 Between restrictive coating have good separation property, tearing strength be 10N or less.Optical cable is using cross section in the dry type of 8 fonts Structure.

The utility model mainly considers the following when designing cable configuration:

(1) positioning can be facilitated by the plastic optical fiber of macroscopic 650um wavelength red light irradiation by using.

(2) fibrous reinforcements use more reinforcement original parts, several tight tube fiber surroundings are evenly distributed on, to guarantee good Good mechanical performance, then a strata vinyl chloride or low smoke and zero halogen sheath material are extruded, protect the optical fiber property in cabling process.

(3) fiber unit sheath and plastic optical fiber unit sheath are closely coupled, and tearing strength is 10N hereinafter, both can be simultaneously It exercises and uses, use can also be torn.

(4) fiber unit and plastic optical fiber unit sheath material select polyvinyl chloride or low smoke and zero halogen material, have softness The advantages that property is good, small in size, cost performance is high.

(5) optical cable structure size itself is less than normal, and confined space installation was not only convenient but also easy.

The utility model is simultaneously not limited to the embodiments described above, and other any spirit without departing from the utility model are real Made changes, modifications, substitutions, combinations, simplifications under matter and principle, should be equivalent substitute mode, be included in practical Within novel protection scope.

Claims (5)

1. a kind of detachable plastic optical fiber inside cable, it is characterised in that: including fiber unit (4) and plastic optical fiber unit (7), the fiber unit (4) and plastic optical fiber unit (7) are arranged in parallel, and have oversheath, the oversheath in external sheath Between it is closely coupled, cable cross-section be in 8 fonts dry type structure, the fiber unit (4) include optical fiber (1), fiber reinforce Part (2) and fiber unit sheath (3), the optical fiber (1) are successively arranged fibrous reinforcements (2), fiber unit shield from the inside to the outside It covers (3), the optical fiber (1) is provided with single or more；The plastic optical fiber unit (7) includes plastic optical fiber (5), plastic optical fiber Unit sheath (6), plastic optical fiber (5) outer wall fit closely plastic optical fiber unit sheath (6), the fiber unit sheath It (3) is polyvinyl chloride or low smoke and zero halogen material layer with plastic optical fiber unit sheath (6).

2. detachable plastic optical fiber inside cable as described in claim 1, it is characterised in that: the optical fiber (1) is coloring Optical fiber or tight tube fiber.

3. detachable plastic optical fiber inside cable as claimed in claim 2, it is characterised in that: the tight tube fiber includes light Fine and tight sleeve layer, the tight sleeve layer are tightly placed in optical fiber periphery, and the tight sleeve layer is made of polyvinyl chloride or low smoke and zero halogen material.

4. detachable plastic optical fiber inside cable as described in claim 1, it is characterised in that: the fibrous reinforcements (2) Using more reinforcement original parts, the more reinforcements original part is evenly distributed on optical fiber surrounding.

5. detachable plastic optical fiber inside cable as described in claim 1, it is characterised in that: the plastic optical fiber (5) Sandwich layer uses poly methyl methacrylate polymer, and covering uses fluorinated polymer.