CN217238471U

CN217238471U - Reinforced optical cable

Info

Publication number: CN217238471U
Application number: CN202123071604.XU
Authority: CN
Inventors: 沈小平; 周建新; 李忠明; 李文善
Original assignee: Tongding Interconnection Information Co Ltd
Current assignee: Tongding Interconnection Information Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-08-19
Anticipated expiration: 2031-12-08

Abstract

The utility model provides a reinforced optical cable, which comprises a cable core, and a water-blocking tape, a steel-plastic composite tape and an outer sheath which are sequentially arranged outside the cable core from inside to outside; the cable core includes central reinforcement to and a plurality of optical fiber unit that evenly set up around this central reinforcement, optical fiber unit includes the circular loose tube of optic fibre area and outside parcel, is equipped with first packing rope in the space between optic fibre area and the circular loose tube, first packing rope lateral wall respectively with circular loose tube and optic fibre area butt. In this design, among the optical fiber unit first filling rope respectively with circular pine sleeve pipe and optic fibre area butt, guarantee the optic fibre area position on the one hand, guarantee optical fiber unit's circularity, on the other hand first filling rope can assist and improve the tensile, anti effect of swaing of optical cable.

Description

Reinforced optical cable

Technical Field

The utility model belongs to optical cable production field especially relates to a reinforcement type optical cable.

Background

The optical cable plays an important role in modern communication and power grid construction, in the existing optical cable structure, the strength of some optical cables is low, and the optical cable can be torn due to over bending or over long bending time in use, so that the use of the optical fiber is directly influenced, and finally, the signal transmission is not smooth, and inconvenience is brought to production and life.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a reinforcement type optical cable to improve optical cable intensity.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a reinforced optical cable comprises a cable core, and a water blocking tape, a steel-plastic composite tape and an outer sheath which are sequentially arranged outside the cable core from inside to outside;

the cable core includes central reinforcement to and a plurality of optical fiber unit that evenly set up around this central reinforcement, optical fiber unit includes the circular pine sleeve pipe of optic fibre area and outside parcel, is equipped with first packing rope in the space between optic fibre area and the circular pine sleeve pipe, first packing rope lateral wall respectively with circular pine sleeve pipe and optic fibre area butt.

Furthermore, water-blocking ointment is filled in the gap position of the optical fiber unit.

Furthermore, compound area outside parcel has the inner sheath is moulded to steel, the protrusion of inner sheath lateral wall has the spiral rib, and this inner sheath outside parcel has the ribbon, is equipped with the oleamen that blocks water between inner sheath and the ribbon.

Furthermore, the number of spiral ribs on the inner jacket is 3-5.

Furthermore, a second filling rope is arranged in a space formed between every two adjacent optical fiber units and the water blocking tape.

Furthermore, water-blocking ointment is filled in the gap position of the cable core.

Compared with the prior art, a reinforcement type optical cable have following advantage:

(1) in this design, the outside parcel of optic fibre area has circular loose tube, has filled the oleamen in the space between optic fibre area and circular loose tube, has set up first packing rope simultaneously in this space, because first packing rope respectively with circular loose tube and optic fibre area butt, guarantee the optic fibre area position on the one hand, guarantee the circularity of optic fibre unit, on the other hand first packing rope can assist improvement optical cable stretch-proofing, anti effect of swaing.

(2) In the design, the inner sheath and the outer sheath are arranged outside the cable core, the cable core is protected doubly, the inner sheath is provided with the spiral ribs, the tensile strength and the bending strength of the cable core are improved, the problem that the optical cable is prone to cracking due to bending fatigue is solved, and the optical cable is guaranteed to be normally used.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic view of a reinforced optical cable according to an embodiment of the present invention;

description of the reference numerals:

1-optical fiber ribbon; 2-a first fill string; 3-water blocking tape; 4-steel-plastic composite belts; 5-inner sheath; 6-water-blocking ointment; 51-helical ribs; 7-binding a belt; 8-an outer sheath; 9-a central stiffener; 10-a second fill string; 11-round loose tube.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the reinforced optical cable comprises a cable core, and a water blocking tape 3, a steel-plastic composite tape 4 and an outer sheath 8 which are sequentially arranged outside the cable core from inside to outside. In this embodiment, the outer sheath 8 is a polyethylene sheath. The cable core comprises a central reinforcing part 9 and a plurality of optical fiber units uniformly arranged around the central reinforcing part 9, and the central reinforcing part 9 is a non-metal part. The present embodiment is described by taking the number of the optical fiber units as four as an example. Each optical fiber unit comprises an optical fiber ribbon 1 and a round loose tube 11 wrapped outside the optical fiber ribbon 1, a first filling rope 2 is arranged in a space between the optical fiber ribbon 1 and the round loose tube 11, and the side wall of the first filling rope 2 is respectively abutted to the round loose tube 11 and the optical fiber ribbon 1. In this embodiment, the optical fiber ribbon 1 is a flat ribbon or a square ribbon structure, and the diameter of the circular loose tube 11 corresponds to the width of the optical fiber ribbon 1. Taking the optical fiber ribbon 1 as a flat ribbon for illustration, as shown in fig. 1, the optical fiber ribbon 1 forms two spaces between the circular loose tube 11 and the circular loose tube 11 in the radial direction, the two spaces are located at two sides of the optical fiber ribbon 1, a first filling rope 2 is arranged in each space, and the centers of circles of the two first filling ropes 2 are arranged along the radial direction of the circular loose tube 11. The two first filling ropes 2 ensure the roundness of the optical fiber unit, and on the other hand, the optical fiber ribbon tensile, swinging and bending resistant effects can be improved in an auxiliary mode, so that the bending resistant strength of the optical cable is improved.

In this embodiment, the water-blocking ointment is filled in the gap between the optical fiber unit, that is, the water-blocking ointment is filled in the gap between the optical fiber ribbon and the circular loose tube. The water-blocking ointment plays a water-blocking role on one hand for the optical fiber ribbon 1, and on the other hand can buffer the influences of vibration, impact, bending and the like possibly received in the construction and use processes of the optical fiber ribbon 1, namely mechanical force, so that the operation stability of the optical fiber is ensured.

In this embodiment, the steel-plastic composite belt 4 is externally wrapped with an inner sheath 5, the outer side wall of the inner sheath 5 protrudes with spiral ribs 51, and the number of the spiral ribs 51 on the inner sheath 5 is 3-5. The inner sheath 5 is the polyethylene inner sheath, and this 5 outside parcels of inner sheath have ribbon 7, and the space intussuseption is filled with the oleamen 6 that blocks water between inner sheath 5 and ribbon 7. The provision of the helical ribs 51 improves the tensile and bending strength of the inner sheath 5. The arrangement of the water-blocking ointment 6 between the inner sheath 5 and the binding belt 7 can buffer the friction between the inner sheath and the outer sheath, and improve the overall strength.

In this embodiment, a second filling string 10 is provided in a space formed between each adjacent two optical fiber units and the water blocking tape 3. The second filling rope 10 is attached to the outer wall of the round loose tube 11 of the optical fiber unit and the inner wall of the water-blocking tape 3 respectively. In this embodiment, four optical fiber units correspond to four second filling ropes 10, so as to ensure the position accuracy of the four optical fiber units.

In this embodiment, the gap position of the cable core is filled with water-blocking ointment. That is, the space between the optical fiber unit, the second filling cord 10 and the central reinforcing member 9 is filled with water-blocking ointment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A reinforced optical cable, comprising: the cable comprises a cable core, and a water blocking tape (3), a steel-plastic composite tape (4) and an outer sheath (8) which are sequentially arranged outside the cable core from inside to outside;

the cable core includes central reinforcement (9) to and a plurality of optical fiber unit that evenly set up around this central reinforcement (9), optical fiber unit includes optical fiber ribbon (1) and circular loose sleeve pipe (11) of outside parcel, is equipped with first packing rope (2) in the space between optical fiber ribbon (1) and circular loose sleeve pipe (11), first packing rope (2) lateral wall respectively with circular loose sleeve pipe (11) and optical fiber ribbon (1) butt.

2. The reinforced optical cable of claim 1, wherein: and water-blocking ointment is filled in the gap position of the optical fiber unit.

3. A reinforced optical cable as claimed in claim 1, wherein: the outside parcel of steel-plastic composite belt (4) has inner sheath (5), the protrusion of inner sheath (5) lateral wall has spiral rib (51), and this inner sheath (5) outside parcel has ribbon (7), is equipped with water blocking ointment (6) between inner sheath (5) and ribbon (7).

4. A reinforced optical cable according to claim 3, wherein: the number of the spiral ribs (51) on the inner sheath (5) is 3-5.

5. A reinforced optical cable as claimed in claim 1, wherein: and a second filling rope (10) is arranged in a space formed between every two adjacent optical fiber units and the water-blocking tape (3).

6. The reinforced optical cable of claim 1, wherein: and water-blocking ointment is filled in the gap position of the cable core.