CN210690894U

CN210690894U - High-temperature flame-retardant rubber-insulated-wire optical cable

Info

Publication number: CN210690894U
Application number: CN201921844451.8U
Authority: CN
Inventors: 叶坤宇
Original assignee: Xiamen Jiashengxing Technology Co Ltd
Current assignee: Xiamen Jiashengxing Technology Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-06-05
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a high temperature flame retardant rubber-insulated optical cable in the technical field of rubber-insulated optical cable, which comprises a connecting piece, the lower end of the connecting piece is sleeved with a mounting groove, the middle part of the inner cavity of the connecting piece is provided with a butterfly-shaped sheath, the left and right ends of the inner cavity of the butterfly-shaped sheath are provided with first reinforcing pieces, the middle part of the inner cavity of the butterfly-shaped sheath is provided with a rubber-insulated optical cable, the center of the inner cavity of the rubber-insulated optical cable comprises an optical fiber core, the outer side of the optical fiber core is wrapped with an optical fiber cladding layer for effectively protecting the optical fiber core, the outer end of the optical fiber cladding layer is provided with a fixed interlayer, the outer side of the fixed interlayer is provided with a heat-insulating layer, the two are fixed through six groups of supporting, prevent damage, be favorable to the utility model discloses a popularization.

Description

High-temperature flame-retardant rubber-insulated-wire optical cable

Technical Field

The utility model relates to a rubber-insulated-wire cable technical field specifically is a fire-retardant rubber-insulated-wire cable of high temperature.

Background

In the FTTH project in recent years, user indoor wiring is the most complicated link, and many factors are considered. Both must guarantee the circuit safety, must compromise indoor pleasing to the eye again, still need the construction convenience simultaneously, and traditional single core indoor optical cable can not satisfy the requirement of present stage FTTH engineering indoor wiring yet. The rubber-insulated-wire optical cable (also called butterfly-shaped optical cable) is used as a substitute of the traditional indoor optical cable, can adapt to most indoor wiring conditions, such as the capability of turning at a bending radius of 20mm, the capability of bearing the lateral pressure of a person stepping on the optical cable and the pulling force caused by the dragging of engineering construction. Meanwhile, the end forming and butt joint can be realized on site in the shortest time by matching with various field connectors. Therefore, the rubber-insulated fiber cable is the best choice for FTTH indoor wiring.

The traditional covered wire optical cable consists of optical fibers, FRP reinforcements and FRP sheaths, is suitable for the environmental temperature below 80 ℃, and cannot be suitable for the special use condition of high temperature because the coated optical fibers with the outer diameter of 0.25mm and the sheath materials which are positioned at the center of the optical cable are both suitable for the environmental temperature below 80 ℃.

Based on this, the utility model designs a fire-retardant rubber-insulated-wire cable of high temperature to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant rubber-insulated-wire cable of high temperature to solve traditional rubber-insulated-wire cable that proposes in the above-mentioned background art and constitute by optic fibre, FRP reinforcement and FRP sheath, be applicable to the ambient temperature below 80 degrees centigrade, because it is the coated optical fiber that the external diameter is 0.25mm and the sheath material all is applicable to the ambient temperature below 80 degrees centigrade that is located the optical cable center, can not be applicable to the problem of the special service condition of high temperature.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature flame-retardant rubber-insulated-wire optical cable comprises a connecting piece, wherein the lower end of the connecting piece is sleeved with a mounting groove, a butterfly-shaped sheath is arranged in the middle of an inner cavity of the connecting piece, first reinforcing pieces are arranged at the left end and the right end of the inner cavity of the butterfly-shaped sheath, and a rubber-insulated-wire optical cable is arranged in the middle of the inner cavity of the butterfly-shaped sheath;

the rubber-insulated-wire optical cable comprises a central optical fiber core, an optical fiber cladding is arranged on the outer layer of the optical fiber core, a fixed interlayer is arranged at the outer end of the optical fiber cladding, six groups of supporting frames are vertically arranged on the outer side wall of the fixed interlayer in an equidistant mode, a heat insulation layer is sleeved at the outer end of each supporting frame, six groups of second reinforcing pieces are arranged on the inner cavity of the heat insulation layer in an equidistant mode in an embedded mode, a waterproof layer is sleeved on the outer side of the heat insulation layer, and a wear-resistant sheath is arranged at the outer end of.

Preferably, a T-shaped lug is arranged in the middle of the outer side wall of the connecting piece.

Preferably, the inner cavity of the mounting groove is provided with a T-shaped groove, and the T-shaped convex block and the T-shaped groove are matched with each other and movably connected, so that the rubber-insulated-wire optical cable can be conveniently and fixedly mounted.

Preferably, two sets of first reinforcement and six sets of second reinforcements are FRP reinforcements or KFRP reinforcements, and six sets of the second reinforcements are equidistantly arranged around the fiber core, and the included angle between two adjacent sets of second reinforcements is 60 degrees, so that the tensile strength of the rubber-insulated-wire cable is higher.

Preferably, the waterproof layer is a non-woven waterproof layer, and the waterproof effect is good.

Preferably, the wear-resistant sheath material is a flame-retardant polyolefin sheath material, so that heat is effectively blocked and cables are protected.

Preferably, the cross section of the butterfly-shaped sheath is 8-shaped, and the first reinforcing piece is positioned in the center of the two circles, so that subsequent wire stripping is facilitated.

Compared with the prior art, the beneficial effects of the utility model are that: the outer cavity of the rubber-insulated optical cable is wrapped with a butterfly-shaped sheath, which is convenient for stripping wires during butt joint, two ends of the inner cavity of the butterfly-shaped sheath are provided with first reinforcing parts, the outer side wall of the butterfly-shaped sheath is sleeved with a connecting part, the connecting part is butted with a T-shaped groove of the inner cavity of a mounting groove through a T-shaped lug, so as to realize quick fixed mounting of the rubber-insulated optical cable, the center of the inner cavity of the rubber-insulated optical cable comprises an optical fiber core, the outer side of the optical fiber core is wrapped with an optical fiber cladding layer which effectively protects the optical fiber core, the outer end of the optical fiber cladding layer is provided with a fixed interlayer, the outer side of the fixed interlayer is provided with a heat-insulating layer, the two layers are fixed through six groups of supporting frames, so as to effectively isolate, is favorable for the popularization of the utility model.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic view of the internal structure of the rubber-insulated optical cable of the present invention;

FIG. 3 is a schematic view of the structure of the connector of the present invention;

fig. 4 is a schematic view of the mounting groove structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the optical fiber cable comprises a connector 1, a 101-T-shaped bump, a 2-mounting groove, a 201-T-shaped groove, a 3-butterfly-shaped sheath, a 4-first reinforcing piece, a 5-covered wire optical cable, a 6-optical fiber core, a 7-optical fiber cladding, an 8-fixing interlayer, a 9-supporting frame, a 10-heat insulation layer, a 11-second reinforcing piece, a 12-waterproof layer and a 13-wear-resistant sheath.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-temperature flame-retardant rubber-insulated-wire optical cable comprises a connecting piece 1, wherein the lower end of the connecting piece 1 is sleeved with a mounting groove 2, a butterfly-shaped sheath 3 is arranged in the middle of an inner cavity of the connecting piece 1, first reinforcing pieces 4 are arranged at the left end and the right end of the inner cavity of the butterfly-shaped sheath 3, and a rubber-insulated-wire optical cable 5 is arranged in the middle of the inner cavity of the butterfly-shaped sheath;

rubber-insulated-wire cable 5 includes central optic fibre core 6, optic fibre core 6's outer layer has been put optic fibre covering 7, optic fibre covering 7's outer end is provided with fixed intermediate layer 8, fixed intermediate layer 8's lateral wall equidistant vertical ring is provided with six groups of support frames 9, six groups of support frames 9's outer end cup joints and is provided with insulating layer 10, insulating layer 10's inner chamber equidistant ring is inlayed and is provided with six groups of second reinforcement 11, insulating layer 10's outside cup joints and is provided with waterproof layer 12, waterproof layer 12's outer end is provided with wear-resisting sheath 13.

Wherein, the middle part of the outer side wall of the connecting piece 1 is provided with a T-shaped lug 101. The inner cavity of the mounting groove 2 is provided with a T-shaped groove 201, and the T-shaped convex block 101 is matched and movably connected with the T-shaped groove 201. Secondly, two sets of first stiffeners 4 and six sets of second stiffeners 11 are FRP stiffeners or KFRP stiffeners, and six sets of second stiffeners 11 equally spaced encircle optical fiber core 6 and set up, and the contained angle between two adjacent sets of second stiffeners 11 is 60 degrees. Further, the waterproof layer 12 is a nonwoven fabric waterproof layer. The wear-resistant sheath 13 is made of flame-retardant polyolefin sheath material. Finally, the cross section of the butterfly-shaped sheath 3 is 8-shaped, and the first reinforcing piece 4 is positioned at the center of the two circles.

One specific application of this embodiment is: the exocoel parcel of rubber-insulated-wire cable 5 is provided with butterfly sheath 3, the inner chamber both ends of butterfly sheath 3 are provided with first reinforcement 4, the lateral wall of butterfly sheath 3 cup joints and is provided with connecting piece 1, connecting piece 1 docks with the T type recess 201 of 2 inner chambers of mounting groove through T type lug 101, realize the quick fixed mounting of rubber-insulated-wire cable 5, the inner chamber central authorities of rubber-insulated-wire cable 5 include optic fibre core 6, the outside parcel of optic fibre core 6 is provided with optic fibre covering 7, the outer end of optic fibre covering 7 is provided with fixed intermediate layer 8, the outside of fixed intermediate layer 8 is provided with insulating layer 10, insulating layer 10 and fixed intermediate layer 8 are fixed through six groups of support frame 9 that equidistant encircleing set up between the two, the inner chamber of insulating layer 10 is provided with six groups of second reinforcements 11, the lateral wall parcel of insulating layer 10.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a fire-retardant rubber-insulated-wire cable of high temperature, includes connecting piece (1), its characterized in that: the lower end of the connecting piece (1) is sleeved with a mounting groove (2), a butterfly-shaped sheath (3) is arranged in the middle of an inner cavity of the connecting piece (1), first reinforcing pieces (4) are arranged at the left end and the right end of the inner cavity of the butterfly-shaped sheath (3), and a rubber-covered wire optical cable (5) is arranged in the middle of the inner cavity of the butterfly-shaped sheath (3);

rubber-insulated-wire cable (5) are including central optic fibre core (6), optic fibre cladding (7) have been put to the skin of optic fibre core (6), the outer end of optic fibre cladding (7) is provided with fixed intermediate layer (8), the lateral wall equidistant perpendicular encircleing of fixed intermediate layer (8) is provided with six groups support frame (9), six groups the outer end of support frame (9) is cup jointed and is provided with insulating layer (10), the inner chamber equidistant encircleing of insulating layer (10) is inlayed and is provided with six groups of second reinforcement (11), the outside of insulating layer (10) is cup jointed and is provided with waterproof layer (12), the outer end of waterproof layer (12) is provided with wear-resisting sheath (13).

2. The high-temperature flame-retardant covered wire optical cable according to claim 1, characterized in that: the middle part of the outer side wall of the connecting piece (1) is provided with a T-shaped lug (101).

3. The high-temperature flame-retardant covered wire optical cable according to claim 2, characterized in that: the inner cavity of the mounting groove (2) is provided with a T-shaped groove (201), and the T-shaped lug (101) is matched and movably connected with the T-shaped groove (201).

4. The high-temperature flame-retardant covered wire optical cable according to claim 1, characterized in that: the two groups of first reinforcing parts (4) and the six groups of second reinforcing parts (11) are FRP reinforcing parts or KFRP reinforcing parts, the six groups of second reinforcing parts (11) are arranged around the fiber core (6) at equal intervals, and an included angle between every two adjacent groups of second reinforcing parts (11) is 60 degrees.

5. The high-temperature flame-retardant covered wire optical cable according to claim 1, characterized in that: the waterproof layer (12) is a non-woven waterproof layer.

6. The high-temperature flame-retardant covered wire optical cable according to claim 1, characterized in that: the wear-resistant sheath (13) is made of flame-retardant polyolefin sheath material.

7. The high-temperature flame-retardant covered wire optical cable according to claim 1, characterized in that: the cross section of the butterfly-shaped sheath (3) is 8-shaped, and the first reinforcing piece (4) is positioned in the center of the two circles.