CN218298601U

CN218298601U - Fireproof optical cable

Info

Publication number: CN218298601U
Application number: CN202221935650.1U
Authority: CN
Inventors: 刘伟
Original assignee: Subei Optical Cable Co ltd
Current assignee: Subei Optical Cable Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-01-13
Anticipated expiration: 2032-07-26

Abstract

The utility model belongs to the technical field of the optical cable, especially, be a fire prevention type optical cable, strengthen core, optic fibre, sleeve pipe, filler, interior protective sheath and outer protective sheath including the center, a plurality of sleeve pipes have been laid to the outside annular of core is strengthened at the center, sheathed tube inside is equipped with optic fibre, interior protective sheath is in a plurality of the sheathed tube outside, outer protective sheath is established the outside of interior protective sheath, the outside of interior protective sheath is equipped with the asbestos stratum reticulare, through the combination of the asbestos stratum reticulare, asbestos reticular lamina, the first and the second of fireproof rubber strip of the asbestos reticular lamina and the fireproof rubber strip of addding between interior protective sheath and the outer protective sheath, the design of cooperation fireproof paint and flame retardant coating has promoted the fire resistance of optical cable to a great extent through multiple mode, and the practicality is strong, through the metal collapsible tube who adds between flame retardant coating and the asbestos stratum reticulare, can improve the outside protectiveness of optical cable under the condition that does not influence the normal use of buckling of optical cable, avoids the optical cable easy to be broken.

Description

Fireproof optical cable

Technical Field

The utility model belongs to the technical field of the optical cable, concretely relates to fire prevention type optical cable.

Background

Fiber optic cables are manufactured to meet optical, mechanical, or environmental performance specifications and utilize one or more optical fibers disposed in a covering jacket as the transmission medium and are telecommunication cable assemblies that may be used individually or in groups. The optical cable is mainly composed of optical fibers (thin glass fibers like hair), a plastic protective sleeve and a plastic outer skin, wherein the optical cable is a communication line which is formed by combining a certain number of optical fibers into a cable core in a certain mode, and is externally coated with a sheath, and an outer protective layer is also coated on the optical cable for realizing optical signal transmission. Namely: a cable formed by subjecting an optical fiber (optical transmission carrier) to a certain process. The basic structure of an optical cable generally comprises a cable core, a reinforcing steel wire, filler, a sheath and the like, and further comprises a waterproof layer, a buffer layer, an insulated metal wire and other components according to requirements.

Current optical cable is when actual application, and fire behavior is not enough, and is not good to optical cable inner structure's protectiveness simultaneously, leads to the optical cable easy to be destroyed when using.

Therefore, there is a need for a fire-resistant optical cable, which effectively solves the above problems.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a fire prevention type optical cable has the characteristics of better fire prevention and durability can.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire prevention type optical cable, strengthens core, optic fibre, sleeve pipe, filler, interior protective sheath and outer protective sheath including the center, a plurality of sleeves have been laid to the outside annular of core is strengthened in the center, sheathed tube inside is equipped with optic fibre, interior protective sheath is in a plurality of the sheathed tube outside, outer protective sheath package is established the outside of interior protective sheath, the outside of interior protective sheath is equipped with the asbestos stratum reticulare, the asbestos stratum reticulare is close to one side ring junction of interior protective sheath has a plurality of asbestos nettings, be equipped with fire prevention rubber strip one in the asbestos nettings, and adjacent two be equipped with fire prevention rubber strip two between the asbestos nettings, the asbestos stratum reticulare with from interior to exterior is equipped with metal collapsible tube and flame retardant coating in proper order between the outer protective sheath.

As the utility model discloses a preferred technical scheme of fire prevention type optical cable, the cross-section of asbestos gauge strip is the arc structure.

As the utility model discloses a preferred technical scheme of fire prevention type optical cable, metal collapsible tube with be equipped with fire retardant coating between the flame retardant coating.

As the utility model discloses a preferred technical scheme of fire prevention type optical cable, the flame retardant coating is fire prevention plastic component.

As the utility model discloses a preferred technical scheme of fire prevention type optical cable, the inside packing of interior protective sheath has the filler.

Compared with the prior art, the beneficial effects of the utility model are that: when the utility model is used, the fireproof and fire-resistant performance of the optical cable is improved to a greater extent through various modes by combining the asbestos mesh layer, the asbestos mesh strips, the first fireproof rubber strips and the second fireproof rubber strips which are additionally arranged between the inner protective sleeve and the outer protective sleeve and matching with the design of fireproof coatings and fireproof layers, so that the practicability is strong;

and through the metal collapsible tube who adds between flame retardant coating and the asbestos gauge layer, can be under the condition that does not influence the optical cable and normally buckle the use, improve the outside protectiveness of optical cable, avoid the optical cable easily to be broken, the condition such as being scratched and destroying takes place, guarantee communication and data transmission operation's normal clear, solved original optical cable when the actual application, fire behavior is not enough, simultaneously not good to optical cable inner structure's protectiveness, lead to the optical cable easily destroyed problem when using.

Drawings

The accompanying drawings 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 and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural diagram of a metal hose portion in the present invention.

In the figure: 1. a central reinforcing core; 2. an optical fiber; 3. a sleeve; 4. a filler; 5. an inner protective sheath; 6. an outer protective sheath; 7. a metal hose; 8. a fire retardant coating; 9. a fire barrier layer; 10. an asbestos web layer; 11. an asbestos web; 12. a first fireproof rubber strip; 13. and a second fireproof rubber strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a fire prevention type optical cable, strengthen core 1 including the center, optic fibre 2, sleeve pipe 3, filler 4, interior protective sheath 5 and outer protective sheath 6, the inside packing of interior protective sheath 5 has filler 4, a plurality of sleeve pipes 3 have been laid to the outside annular of core 1 is strengthened at the center, the inside of sleeve pipe 3 is equipped with optic fibre 2, interior protective sheath 5 overlaps the outside at a plurality of sleeve pipes 3, outer protective sheath 6 wraps the outside at interior protective sheath 5, the outside of interior protective sheath 5 is equipped with asbestos web layer 10, one side annular connection that asbestos web layer 10 is close to interior protective sheath 5 has a plurality of asbestos nettings 11, be equipped with fireproof rubber strip one 12 in the asbestos nettings 11, and be equipped with fireproof rubber strip two 13 between two adjacent asbestos nettings 11, from inside to outside is equipped with metal collapsible tube 7 and flame retardant coating 9 in proper order between asbestos nettings 10 and outer protective sheath 6, in this embodiment, the cross-section of asbestos nettings 11 is the arc structure, through the metal collapsible tube 7 that adds between flame retardant coating 9 and asbestos nettings 10, can be under the condition that does not influence the optical cable normal buckling use, the easy is broken off, avoid being scratched, the condition, the practicality is strong, the emergence practicality such as the optical cable is strong.

Wherein be equipped with fire prevention coating 8 between metal collapsible tube 7 and the flame retardant coating 9, in this embodiment, flame retardant coating 9 is fire prevention plastic component, and through the asbestos stratum reticulare 10, the asbestos nexine 11, the combination of one 12 of fire prevention rubber strip and two 13 of fire prevention rubber strip that add between inner protective cover 5 and the outer protective sheath 6, the design of cooperation fire prevention coating 8 and flame retardant coating 9 has promoted the fire prevention fire behavior of optical cable to a great extent through multiple mode.

The utility model discloses a theory of operation and use flow: in the using process of the utility model, the inner protective sleeve 5 is internally provided with the structures of the central reinforced core 1, the optical fiber 2, the sleeve 3, the filler 4 and the like, thereby ensuring the normal application of the optical cable and avoiding redundant description for the prior technical means;

an asbestos mesh layer 10 is arranged outside the inner protective sleeve 5, an asbestos mesh strip 11 is arranged between the asbestos mesh layer 10 and the inner protective sleeve 5, a first fireproof rubber strip 12 and a second fireproof rubber strip 13 are filled in the asbestos mesh strip 11 and between the adjacent asbestos mesh strips 11, through the design, the fireproof and fire-resistant performance of the optical cable is improved, and a fireproof coating 8 and a fireproof layer 9 are arranged on the outer side of a metal hose 7 outside the asbestos mesh layer 10, so that the fireproof and fire-resistant performance of the optical cable is further improved, wherein the fireproof coating 8 is a common coating in the existing market;

through the setting of above-mentioned metal collapsible tube 7, because the intensity that metal collapsible tube 7 itself possessed and the performance of buckling, can improve the outside protectiveness of optical cable under the condition that does not influence the optical cable and normally buckle the use, guaranteed to the safe efficient use operation of optical cable.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fire prevention type optical cable, includes that core (1), optic fibre (2), sleeve pipe (3), filler (4), interior protective sheath (5) and outer protective sheath (6), its characterized in that are strengthened at the center: the utility model discloses a fire-proof optical fiber cable, including central reinforced core (1), the outside annular of sleeve pipe (3) has been laid a plurality of sleeve pipes (3), the inside of sleeve pipe (3) is equipped with optic fibre (2), interior protective sheath (5) cover is a plurality of the outside of sleeve pipe (3), outer protective sheath (6) package is established the outside of interior protective sheath (5), the outside of interior protective sheath (5) is equipped with asbestos gauge net layer (10), asbestos gauge net layer (10) are close to one side annular of interior protective sheath (5) is connected with a plurality of asbestos gauge net strips (11), be equipped with fire prevention rubber strip (12) in asbestos gauge net strip (11), and adjacent two be equipped with fire prevention rubber strip two (13) between asbestos gauge net strip (11), asbestos gauge net layer (10) with from inside to outside is equipped with metal collapsible tube (7) and fire prevention layer (9) in proper order between outer protective sheath (6).

2. A fire-resistant optical cable according to claim 1, wherein: the cross section of the asbestos net strip (11) is of an arc-shaped structure.

3. A fire-resistant optical cable according to claim 1, wherein: and a fireproof coating (8) is arranged between the metal hose (7) and the fireproof layer (9).

4. A fire-resistant optical cable according to claim 1, wherein: the fireproof layer (9) is a fireproof plastic component.

5. A fire-resistant optical cable according to claim 1, wherein: the inner protective sleeve (5) is filled with the filler (4).