CN215599418U

CN215599418U - Stretch-proofing optical cable

Info

Publication number: CN215599418U
Application number: CN202121259247.7U
Authority: CN
Inventors: 孙小强; 唐立文; 侯翔; 张睿; 张健; 周雯雯; 刘鹏; 刘硕; 陈洁
Original assignee: Peoples Liberation Army Strategic Support Force Aerospace Engineering University
Current assignee: Peoples Liberation Army Strategic Support Force Aerospace Engineering University
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-01-21
Anticipated expiration: 2031-06-07

Abstract

The utility model relates to the technical field of optical cables, in particular to a stretch-resistant optical cable. The stretch resistant fiber optic cable includes: the optical fiber cable comprises a support member, a reinforcing piece, a PBT pipe, a carbon fiber pipe, an optical fiber and a sheath structure, wherein the support member is provided with three spiral groove positions; the stiffener is disposed within the support member; the number of the PBT pipes is three, and the three PBT pipes are respectively arranged in the three spiral grooves; the carbon fiber pipes are provided with six carbon fiber pipes which are all arranged in the PBT pipe; the optical fiber is arranged in the PBT tube; the sheath structure is arranged on the outer side of the PBT tube, the fiber core is spirally and uniformly coiled, so that redundant wire length can be ensured to offset the displacement of the external force during the external force stretching, and meanwhile, in order to improve the tensile strength, high-strength carbon fibers are designed around the fiber core, so that the fiber core is prevented from being broken under the action of the external force, and the tensile effect of the optical cable is improved.

Description

Stretch-proofing optical cable

Technical Field

The utility model relates to the technical field of optical cables, in particular to a stretch-resistant optical cable.

Background

At present, the problem of artificial blocking of an optical cable line caused by mechanical external force in the construction process often occurs in the use process of the optical cable line, and especially at present with extremely high requirements on communication reliability, the blocking of the optical cable line brings immeasurable loss to various fields of the economic society. Therefore, a novel external force resistant tensile optical cable is urgently needed, and the problem of optical cable blocking under the action of external force is solved.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a stretch resistant optical cable to ameliorate the above problems. In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the embodiment of the application provides an anti-tensile optical cable which comprises a supporting member, a reinforcing piece, a PBT (polybutylene terephthalate) pipe, a carbon fiber pipe, an optical fiber and a sheath structure, wherein three spiral grooves are formed in the supporting member; the stiffener is disposed within the support member; the number of the PBT pipes is three, and the three PBT pipes are respectively arranged in the three spiral grooves; the carbon fiber pipes are provided with six carbon fiber pipes which are all arranged in the PBT pipe; the optical fiber is arranged in the PBT tube; the sheath structure is arranged on the outer side of the PBT pipe.

Optionally, the sheath structure includes an outer sheath, a steel strip and an inner sheath, the inner sheath is disposed outside the PBT pipe, the outer sheath is disposed outside the inner sheath, and the steel strip is disposed between the inner sheath and the outer sheath.

Optionally, a waterproof material and ointment are disposed between the PBT tube and the optical fiber.

Optionally, the tensile strength of the carbon fiber tube is T700 to T1000.

Optionally, the diameter ratio of the reinforcing piece to the PBT pipe is 1.25-1.67.

Optionally, a filler is disposed between the PBT tube and the jacket structure.

The utility model has the beneficial effects that:

according to the utility model, the fiber core adopts a spiral uniform coiling mode, so that redundant line length can be ensured to offset the displacement of the external force during external force stretching, and meanwhile, in order to improve the tensile strength, high-strength carbon fibers are designed around the fiber core, so that the fiber core is prevented from being broken under the action of the external force, and the tensile effect of the optical cable is improved.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic cross-sectional view of a stretch resistant fiber optic cable according to an embodiment of the present invention;

fig. 2 is a schematic sectional structure view of a straddle type monorail track beam in the embodiment of the utility model.

The labels in the figure are: 1. an outer sheath; 2. a steel belt; 3. an inner sheath; 4. a filler; 5. a support member; 6. a reinforcement; 7. a carbon fiber tube; 8. a PBT tube; 9. a water-resistant material; 10. an ointment; 11. an optical fiber.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

Example 1

As shown in fig. 1 and 2, the present embodiment provides a stretch-resistant optical cable including: the optical fiber cable comprises a support member 5, a reinforcing piece 6, a PBT pipe 8, a carbon fiber pipe 7, an optical fiber 11 and a sheath structure, wherein three spiral grooves are formed in the support member 5; the reinforcement 6 is arranged within the support member 5; the number of the PBT pipes 8 is three, and the three PBT pipes 8 are respectively arranged in the three spiral groove positions; the carbon fiber pipes 7 are provided with six carbon fiber pipes 7, and the six carbon fiber pipes 7 are all arranged in the PBT pipe 8; the optical fiber 11 is arranged in the PBT pipe 8; the sheath structure is arranged outside the PBT pipe 8.

According to the utility model, the fiber core is uniformly coiled in the spiral groove position in a spiral manner, so that redundant wire length can be ensured to offset the displacement of the external force during external force stretching, and meanwhile, in order to improve the tensile strength, high-strength carbon fibers are designed around the fiber core, so that the fiber core is prevented from being broken under the action of the external force, and the tensile effect of the optical cable is improved.

Example 2

The sheath structure is including oversheath 1, steel band 2 and inner sheath 3, inner sheath 3 sets up the PBT pipe 8 outside, the outside of inner sheath 3 is provided with oversheath 1, inner sheath 3 with be provided with between the oversheath 1 the steel band 2.

According to the utility model, by arranging the outer sheath 1, the steel belt 2 and the inner sheath 3, when the optical cable receives external force impact, the three layers of sheaths can greatly offset the impact force, and the steel belt 2 is arranged between the three layers of sheaths, so that the steel belt can effectively prevent the sheaths from being broken, and the protection effect is achieved.

Example 3

And a waterproof material 9 and ointment 10 are arranged between the PBT pipe 8 and the optical fiber 11.

The utility model uses the ointment 10 and the waterproof material 9 to play the role of insulation, simultaneously prevents rainwater from entering the cable by utilizing the water-insoluble property and the oil, simultaneously plays the role of a liner for the optical fiber and can buffer the influence of mechanical force such as vibration, impact, bending and the like on the optical fiber.

Example 4

The tensile strength of the carbon fiber tube 7 is T700-T1000.

The tensile strength of the optical cable is improved by selecting the carbon fiber material with higher tensile strength, and the carbon fiber materials of T700-T1000 are various, so that the carbon fiber materials with price and requirements simultaneously met can be selected.

Example 5

The diameter ratio of the reinforcing piece 6 to the PBT pipe 8 is 1.25-1.67.

According to the utility model, by adjusting the proportion of the reinforcing part 6 to the PBT pipe 8, the overall diameter of the optical cable is not too large, materials can be saved, the optical cable pipeline can be conveniently communicated and the optical cable can be conveniently buried, and under the action of external force, even if the reinforcing part 6 is broken, the PBT pipe 8 can still provide enough strength and displacement to support the optical fiber to prevent further breakage.

Example 6

And a filler 4 is arranged between the PBT pipe 8 and the sheath structure.

The optical cable structure is round and round by adding the filler 4, the optical cable is protected, and the tensile strength of the optical cable is increased.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A stretch resistant fiber optic cable, comprising:

the supporting member (5) is provided with three spiral grooves;

a reinforcement (6), the reinforcement (6) being disposed within the support member (5);

the number of the PBT pipes (8) is three, and the three PBT pipes (8) are respectively arranged in the three spiral groove positions;

the carbon fiber pipe (7), the carbon fiber pipe (7) is provided with six, and the six carbon fiber pipes (7) are all arranged in the PBT pipe (8);

an optical fiber (11), the optical fiber (11) disposed within the PBT tube (8); and

a sheath structure disposed outside the PBT tube (8).

2. A stretch-resistant fiber optic cable according to claim 1, wherein: the sheath structure is including oversheath (1), steel band (2) and inner sheath (3), inner sheath (3) set up PBT pipe (8) outside, the outside of inner sheath (3) is provided with oversheath (1), inner sheath (3) with be provided with between oversheath (1) steel band (2).

3. A stretch-resistant fiber optic cable according to claim 1, wherein: and a waterproof material (9) and ointment (10) are arranged between the PBT tube (8) and the optical fiber (11).

4. A stretch-resistant fiber optic cable according to claim 1, wherein: the tensile strength of the carbon fiber tube (7) is T700-T1000.

5. A stretch-resistant fiber optic cable according to claim 1, wherein: the diameter ratio of the reinforcing piece (6) to the PBT pipe (8) is 1.25-1.67.

6. A stretch-resistant fiber optic cable according to claim 1, wherein: and a filler (4) is arranged between the PBT pipe (8) and the sheath structure.