CN202049271U

CN202049271U - Mouse-bit-prevention indoor wiring optical cable

Info

Publication number: CN202049271U
Application number: CN 201120127500
Authority: CN
Inventors: 马春平; 任明当; 程德军; 黄晓炜
Original assignee: JIANGSU FASTEN OPTICAL CO Ltd; Fasten Group Co Ltd
Current assignee: JIANGSU FASTEN OPTICAL CO Ltd; Fasten Group Co Ltd
Priority date: 2011-04-27
Filing date: 2011-04-27
Publication date: 2011-11-23
Anticipated expiration: 2021-04-27

Abstract

The utility model relates to a mouse-bit-prevention indoor wiring optical cable, which is mainly applied to the fiber to the home indoor wiring. The optical cable adopts a micro beam pipe (2) with the diameter phi being 1.0 to 1.2 mm as an optical fiber unit, a plurality of low-carbon fine steel wires (1) with the diameter phi being 0.3 to 0.5mm are uniformly twisted around the micro beam pipe (2) for forming a cable core, and a sheath (3) is covered at the outer layer of the cable core. The optical cable has the advantages that the low-carbon fine steel wires with the diameter phi being 0.3 to 0.5mm can be armored outside the optical fiber beam pipe which is fractured through being bitten by a mouse, the steel wire is tough for the mouse to bit, the mouse can be prevented from deeply biting the optical cable, and simultaneously, the low-carbon fine steel wires can also be used as tension-resistant and pressure-resistant elements of the optical cable. The material cost of the optical cable is also low.

Description

The mouse bite preventing house wiring optical fiber cable

Technical field

The utility model relates to a kind of communications optical cable, in the house wiring that is mainly used in that Fiber to the home.Belong to optical communication transmission line technology field.

Background technology

Along with people to the increase of the quantity of information requirement and speeding of speed of information exchange demand, utilize optical fiber as transmission medium, its low-loss, high bandwidth, low radiation, anti-interference, the characteristic of high-quality transmission has satisfied the demand of people to information transmission well.The problem that Fiber to the home, fiber to the desk must relate to the inside cable wiring.Consider that the house wiring environment varies, the optical cable of various structure types also constantly designs, and satisfies the demand of various wirings.What at present use morely in Fiber to the home house wiring is butterfly optical cable (can directly connect up) and high-performance air-blowing fiber unit (after needing nylon tube to connect up, the high-performance optical fiber unit lays by the mode of air-blowing).But two kinds of optical cables all can not effectively solve the problem that mouse is nibbled.Behind the plastic layer outside mouse breaks by the teeth, directly optical fiber is bitten broken, caused service interruption, and the rewiring meeting relates to destruction indoor decoration and facility.It is tightly packaged fiber external spiral type stainless steel spring armouring that a kind of house wiring optical fiber cable is arranged, and effectively prevented nibbling of mouse, but the cost height costs an arm and a leg, and is not suitable for average family and uses.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of cost low mouse bite preventing house wiring optical fiber cable.

The purpose of this utility model is achieved in that a kind of mouse bite preventing house wiring optical fiber cable, described optical cable uses diameter Ф 1.0 ~ 1.2mm microbeam pipe as fiber unit, have the low-carbon (LC) finer wire of some diameter Ф 0.3 ~ 0.5mm evenly be stranded in the microbeam pipe around, form cable core, be coated with sheath at described cable core skin.

The beneficial effects of the utility model are:

The utility model optical cable is can be by the armoured Ф 0.3 ~ 0.5mm of the optical fiber bundle tubes that mouse bites broken low-carbon (LC) finer wire, and mouse stings motionless steel wire, can stop mouse to continue deeply to bite away, and can be used as the tension resistance to compression element of optical cable simultaneously again.The cost of material is low for the utility model.

Description of drawings

Fig. 1 is the section structure synoptic diagram of the utility model mouse bite preventing house wiring optical fiber cable.

Fig. 2 is for making the pipe winch structure synoptic diagram of the utility model mouse bite preventing house wiring optical fiber cable.

Reference numeral among the figure:

Low-carbon (LC) finer wire 1, microbeam pipe 2, sheath 3, finer wire draw drum 4, rear cylinder body 5, preceding cylindrical shell 6, microbeam pipe draw drum 7, stranded doubling mould 8, cable core 9.

Embodiment

Referring to Fig. 1, Fig. 1 is the section structure synoptic diagram of the utility model mouse bite preventing house wiring optical fiber cable.As seen from Figure 1, the utility model mouse bite preventing house wiring optical fiber cable comprises microbeam pipe 2, and microbeam pipe 2 diameters have only 1/2nd of its conventional beam tube diameter, and its diameter is Ф 1.0 ~ 1.2mm, is referred to as the microbeam pipe.The low-carbon (LC) finer wire 1 of some diameter Ф 0.3 ~ 0.5mm with suitable pitch evenly be stranded in beam tube around, form and directly to carry out sheath 3 at its cable core skin behind the cable core and extrude, form the optical cable stable structure.Sheath 3 adopts low-smoke halogen-free flame-retardant sheath.

Fig. 2 is for making the pipe winch structure synoptic diagram of the utility model mouse bite preventing house wiring optical fiber cable.As seen from Figure 2, the manufacture method of the utility model mouse bite preventing house wiring optical fiber cable is as follows:

1) produce earlier physical dimension, the suitable microbeam pipe 2 of surplus ankylose on the optical fiber secondary coating production equipment, compared to the beam tube of routine, size has only 1/2nd of its conventional beam tube, is referred to as the microbeam pipe.

2) make the special-purpose inconsistent pipe winch of front and back cylindrical shell size, front first segment strand body unwrapping wire is made the microbeam pipe draw drum 7 of beam tube unwrapping wire Ф 500 ~ 630mm, and be initiatively unwrapping wire mode of small tension receiving coil, back some strand bodies unwrapping wire is as finer wire unwrapping wire Ф 200mm finer wire draw drum, can adopt passive unwrapping wire mode, twisting technology with reference to wire rope, the microbeam pipe is at the center, some low-carbon (LC) finer wires with suitable pitch evenly be stranded in the microbeam pipe around, directly carry out sheath at its cable core skin behind the formation cable core and extrude, form the optical cable stable structure.

The utility model adopts the cagem type armouring technology of the armouring technology of pipe winch formula with respect to routine, and its stranded rotating speed can improve 4 ~ 5 times, the also corresponding raising of its production efficiency.

Claims

1. mouse bite preventing house wiring optical fiber cable, it is characterized in that: described optical cable uses diameter Ф 1.0 ~ 1.2mm microbeam pipe (2) as fiber unit, have the low-carbon (LC) finer wire (1) of some diameter Ф 0.3 ~ 0.5mm evenly be stranded in microbeam pipe (2) around, form cable core, be coated with sheath (3) at described cable core skin.