CN216434466U

CN216434466U - Pressure-resistant anti-deformation ribbon optical cable

Info

Publication number: CN216434466U
Application number: CN202122443401.2U
Authority: CN
Inventors: 王倩倩; 杨喆; 黎保裕; 孙志豪; 吴月
Original assignee: Guangdong Hengtong Photoelectric Technology Co Ltd
Current assignee: Guangdong Hengtong Photoelectric Technology Co Ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-05-03
Anticipated expiration: 2031-10-11

Abstract

The utility model provides a withstand voltage shape-resistant ribbon optical cable of preapring for an unfavorable turn of events, including insulating protective housing, be located the plastic-coated aluminum area of insulating protective housing inboard, be located the inboard bundle yarn of plastic-coated aluminum area, be located the inboard central reinforcement of bundle yarn, cable core, it is formed with the cavity to prick the yarn inboard, it is filled with first filler in the cavity; the central reinforcing part is positioned in the middle of the cavity, the number of the cable cores is n, n is more than or equal to 2, the cable cores are distributed on the edge of the central reinforcing part, and two adjacent cable cores are separated at intervals through a first filling rope; and an anti-deformation module is arranged between the plastic-coated aluminum strip and the insulating protective shell. The utility model discloses a ribbon cable has increased the shape module of preapring for an unfavorable turn of events between plastic-coated aluminum strip and insulating protective housing, can promote the withstand voltage shape ability of preapring for an unfavorable turn of events of ribbon cable.

Description

Pressure-resistant anti-deformation ribbon optical cable

Technical Field

The utility model relates to an optical cable technical field, concretely relates to withstand voltage shape of preapring for an unfavorable turn of events's ribbon optical cable.

Background

Optical fiber cables (optical fiber cables) are manufactured to meet optical, mechanical, or environmental performance specifications and are telecommunication cable assemblies that utilize one or more optical fibers disposed in a surrounding jacket as the transmission medium and that may be used individually or in groups. The optical cable is mainly composed of optical fiber, plastic protective sleeve and plastic sheath, and has no metal such as gold, silver, copper and aluminum, and generally has no recycling value. The optical cable is a communication line which is formed by a certain number of optical fibers into a cable core in a certain mode, is externally coated with a sheath, and is also coated with an outer protective layer for realizing optical signal transmission. The basic structure of the optical cable generally comprises a cable core, a reinforcing steel wire, a filler, a sheath and other parts, and further comprises a waterproof layer, a buffer layer, an insulated metal wire and other components according to requirements.

The optical cable of prior art, the ubiquitous condition that pressure resistance is not enough receives great pressure when the optical cable part, and the optical cable warp easily, causes collision each other between the inside cable core of optical cable, causes the shell wearing and tearing of cable core, very easily causes the cable core short circuit, and this problem is urgently needed to be solved.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a withstand voltage shape of preapring for an unfavorable turn of events ribbon optical cable has increased the shape module of preapring for an unfavorable turn of events between plastic-coated aluminum strip and insulating protective housing, can promote the withstand voltage shape ability of preapring for an unfavorable turn of events of ribbon optical cable.

In order to achieve the above object, the present invention provides the following technical solutions:

a pressure-resistant anti-deformation ribbon optical cable comprises an insulation protective shell, a plastic-coated aluminum tape, a binding yarn, a central reinforcing piece and a cable core, wherein the plastic-coated aluminum tape is positioned on the inner side of the insulation protective shell, the binding yarn is positioned on the inner side of the plastic-coated aluminum tape, the central reinforcing piece is positioned on the inner side of the binding yarn, the inner side of the binding yarn is provided with a cavity, and a first filler is filled in the cavity;

the central reinforcing part is positioned in the middle of the cavity, the number of the cable cores is n, n is more than or equal to 2, the cable cores are distributed on the edge of the central reinforcing part, and two adjacent cable cores are separated at intervals through a first filling rope;

plastic-coated aluminum strip with be equipped with the shape module of preapring for an unfavorable turn of events between the insulating protecting crust, the shape module of preapring for an unfavorable turn of events is including the cladding be in prick the first elastic cushion in the yarn outside, be located have the inboard second elastic cushion of protecting crust, the first elastic cushion outside is formed with a plurality of equidistant distribution's first arc arch, second elastic cushion inboard is formed with a plurality of equidistant distribution's second arc arch, first arc arch with the protruding dislocation set of second arc, first elastic cushion with be formed with the clearance between the second elastic cushion.

Specifically, m second filling ropes are arranged in the cavity, m is larger than or equal to 1, the second filling ropes are arranged at the edge of the central reinforcing part, and the second filling ropes and the cable core are separated at intervals through the first filling ropes.

Specifically, a soft rubber cushion layer is coated on the outer side of the central reinforcement.

Specifically, the cable core comprises a loose tube, an optical fiber ribbon positioned on the inner side of the loose tube and a second filler.

Specifically, the outer side of the insulation protective shell is also provided with a fireproof coating.

The utility model has the advantages that:

1. the utility model discloses a ribbon cable has increased the anti-deformation module between plastic-coated aluminum strip and insulation protective shell, the anti-deformation module includes first elastic cushion layer, second elastic cushion layer, be formed with a plurality of first arc archs outside the first elastic cushion layer, second elastic cushion layer inboard is formed with a plurality of second arc archs, when the optical cable local compression, utilize the characteristic of first arc arch, second arc arch elastic deformation, first arc arch, second arc arch can take place to warp and fill in the clearance, thereby avoid external pressure to influence the structural stability of inside cable core, make ribbon cable have good withstand voltage anti-deformation ability;

2. the fireproof coating is added on the outer side of the insulating protective shell, and the fireproof performance of the optical cable is improved.

Drawings

Fig. 1 is a schematic structural view of the optical fiber ribbon cable of example 1.

Fig. 2 is a schematic view of the structure of the optical fiber ribbon cable of example 1 before and after being compressed.

Fig. 3 is a schematic structural view of a general optical cable of comparative example 1 before and after being partially compressed.

The reference signs are: insulating protective shell 1, fire protection coating 11, plastic-coated aluminum strip 2, bundle yarn 3, central reinforcement 4, flexible glue bed course 41, cable core 5, loose tube 51, optic fibre area 52, second filler 53, first filler 6, first filling rope 7, the shape module 8 of preapring for an unfavorable turn of events, first elastic cushion course 81, second elastic cushion course 82, protruding 811 of first arc, protruding 821 of second arc, second filling rope 9, ordinary optical cable 20.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

Example 1

Referring to FIG. 1: the utility model provides a withstand voltage shape of preapring for an unfavorable turn of events ribbon cable, includes insulating protective housing 1, is located insulating protective housing 1 inboard plastic-coated aluminum strip 2, is located the inboard yarn 3 of pricking of plastic-coated aluminum strip 2, is located the inboard central reinforcement 4 of pricking yarn 3, cable core 5, pricks 3 inboard cavitys that are formed with of yarn, and the cavity intussuseption is filled with first filler 6.

The central reinforcing part 4 is located the cavity middle part, and the quantity of cable core 5 is 3, and cable core 5 distributes at central reinforcing part 4 edges, separates through first filling rope 7 interval between two adjacent cable cores 5, and each other contactless avoids mutual interference between per two cable cores 5.

Be equipped with between plastic-coated aluminum strip 2 and the insulating protective shell 1 and prevent deformation module 8, prevent deformation module 8 including the cladding at the first elastic cushion layer 81 in the 3 outsides of tying up yarn, be located the inboard second elastic cushion layer 82 that has the protective shell, the first elastic cushion layer 81 outside is formed with the protruding 811 of first arc of a plurality of equidistant distributions, second elastic cushion layer 82 inboard is formed with the protruding 821 of second arc of a plurality of equidistant distributions, protruding 811 of first arc and the protruding 821 dislocation set of second arc, be formed with the clearance between first elastic cushion layer 81 and the second elastic cushion layer 82, when optical cable part is pressed, utilize the protruding 811 of first arc, the protruding 821 elastic deformation's of second arc characteristic, first arc is protruding 811, the protruding 821 of second arc can take place to warp and fill in the clearance, thereby avoid the external pressure to influence the structural stability of inside cable core 5.

Preferably, since there are only 3 cable cores 5 in the cavity, there is a large gap between the first cable core 5 and the third cable core 5, if only the first filling rope 7 is placed in the gap, the diameter of the first filling rope 7 is small, which easily causes the cable core 5 to become loose, therefore, there are also 1 second filling rope 9 with large size in the cavity, the second filling rope 9 is disposed at the edge of the central reinforcement 4, and the second filling rope 9 and the cable core 5 are separated by the first filling rope 7.

Preferably, the central strength member 4 is made of a high-hardness material for improving the strength of the optical cable, and in order to prevent the central strength member 4 from wearing the cable core 5, a soft rubber pad 41 is coated on the outer side of the central strength member 4.

Preferably, the cable core 5 comprises a loose tube 51, an optical fiber ribbon 52 located inside the loose tube 51, and a second filler 53.

Preferably, in order to improve the fire-proof capability of the ribbon cable, a fire-proof coating 11 is further provided on the outside of the insulating protective sheath 1.

And (3) testing: as shown in fig. 2, when a local pressure is applied to the ribbon cable, first arcuate projection 811 and second arcuate projection 821 are deformed to fill the gap, thereby protecting inner cable core 5 from being affected.

Comparative example 1

As shown in fig. 3, a pressure is locally applied to the ordinary optical cable 20, and the core inside the ordinary optical cable 20 is deformed by the pressure.

The above examples only represent 1 embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a withstand voltage shape of preapring for an unfavorable turn of events ribbon cable, includes insulating protective housing (1), is located insulating protective housing (1) inboard plastic-coated aluminum strip (2), be located the inboard yarn (3) of pricking of plastic-coated aluminum strip (2), be located prick inboard central reinforcement (4) of yarn (3), cable core (5), it is formed with the cavity to prick yarn (3) inboard, the cavity intussuseption is filled with first filler (6), its characterized in that:

the central reinforcing parts (4) are positioned in the middle of the cavity, the number of the cable cores (5) is n, n is more than or equal to 2, the cable cores (5) are distributed on the edge of the central reinforcing parts (4), and two adjacent cable cores (5) are separated at intervals through first filling ropes (7);

plastic-coated aluminum strip (2) with be equipped with between insulating protective housing (1) and prevent deformation module (8), prevent deformation module (8) including the cladding be in prick first elastic cushion layer (81) in yarn (3) outside, be located the inboard second elastic cushion layer (82) of protective housing, first elastic cushion layer (81) outside is formed with the protruding (811) of first arc of a plurality of equidistant distributions, second elastic cushion layer (82) inboard is formed with the protruding (821) of second arc of a plurality of equidistant distributions, protruding (811) of first arc with the protruding (821) dislocation set of second arc, first elastic cushion layer (81) with be formed with the clearance between second elastic cushion layer (82).

2. The pressure-resistant deformation-resistant ribbon cable as claimed in claim 1, wherein m second filling ropes (9) are arranged in the cavity, m is larger than or equal to 1, the second filling ropes (9) are arranged at the edge of the central reinforcing member (4), and the second filling ropes (9) are separated from the cable core (5) at intervals through the first filling ropes (7).

3. The optical ribbon cable of claim 1, wherein the outer side of the central strength member (4) is coated with a soft rubber layer (41).

4. A pressure-resistant deformation-resistant optical ribbon cable as claimed in claim 1, wherein said cable core (5) comprises a loose tube (51), an optical fiber ribbon (52) located inside said loose tube (51), and a second filler (53).

5. The optical fiber ribbon cable of claim 1, wherein the insulating protective shell (1) is further provided with a fireproof coating (11) on the outer side.