Buffer type composite cable

Abstract

The utility model discloses a buffer type composite cable. The buffer type composite cable comprises a first sleeve, a central reinforcing member, an optical transmission unit, a plurality of conductors, a second sleeve and a plurality of steel wires, the first sleeve is provided with an accommodating cavity, and the central reinforcing piece is arranged in the accommodating cavity; the optical transmission unit and the plurality of conductors are arranged in the accommodating cavity; the second sleeve is sleeved on the first sleeve; and the plurality of steel wires are arranged in the accommodating space. The containing cavity and the containing space are filled with the elastic bodies, the elastic bodies in the containing cavity completely wrap the optical transmission unit and the conductors, the elastic bodies in the containing space completely wrap the steel wires, when the composite cable is bent or wound, the steel wires, the conductors and the optical transmission unit in the composite cable extrude one another, and at the moment, the optical transmission unit and the conductors in the composite cable extrude one another. And the elastic body can provide an excellent buffering effect for the three parts, so that the stress of the optical transmission unit is greatly reduced, the optical transmission unit is effectively protected, the optical transmission unit is not easy to damage, and the service life of the optical transmission unit is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable field technology especially is a kind of buffer type composite cable. BACKGROUND

[0002] Optical cable is manufactured to meet the performance specifications of optics, mechanics or environment, and it is a communication cable assembly using one or more optical fibers placed in a protective sheath as transmission medium and can be used alone or in groups. Optical cable is mainly composed of optical fiber (glass silk as fine as hair) and plastic protective sleeve and plastic outer skin. Optical cable does not contain metals such as gold, silver, copper and aluminum, and generally has no recycling value. Optical cable is a certain number of optical fibers composed of cable core in a certain way, and is coated with a sheath, and some are coated with an outer protective layer, to realize optical signal transmission. With the advent of the information age, the amount of information transmission is growing explosively. As an effective means of large-capacity and long-distance transmission, optical fiber cable has been widely and massively applied, and the application of optical cable has gradually developed from long-distance trunk to metropolitan area network and access network.

[0003] In order to facilitate popularization and application, the existing optical cable will be combined with the cable to form a composite cable with electrical transmission function and optical signal transmission function. In order to improve the strength of the composite cable, most manufacturers will set steel wires in the composite cable. When the composite cable is arranged, the composite cable needs to be bent greatly, and after the preparation of the composite cable, it needs to be wound and then transported. Whether it is greatly bent or wound, the steel wire, conductor and optical transmission unit in the composite cable will be extruded. At this time, the steel wire and the conductor will exert a large force on the optical transmission unit, and the optical transmission unit is easy to be damaged, which shortens its service life. Therefore, it is necessary to improve the existing composite cable. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model provides a buffer type composite cable, which can effectively solve the problem that the steel wire, conductor and optical transmission unit in the existing composite cable are extruded, the optical transmission unit is easy to be damaged and the service life is shortened.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model relates to a kind of buffer type composite cable, including a first sleeve, a central reinforcing member, an optical transmission unit, multiple conductors, a second sleeve and multiple steel wires;The first sleeve has a containing cavity, the central reinforcing member is arranged in containing cavity;The optical transmission unit and multiple conductors are arranged in containing cavity and are distributed in the periphery of central reinforcing member, and the optical transmission unit includes optical fiber sheath, optical fiber and fiber paste, the optical fiber sheath is arranged in containing cavity, the optical fiber is arranged in optical fiber sheath, and the fiber paste is filled in optical fiber sheath and wraps optical fiber;The second sleeve is sleeved on the first sleeve, and the inner wall surface of the second sleeve and the outer surface of the first sleeve form receiving space, and the second sleeve includes body, water-blocking tape and protective layer, the water-blocking tape is covered on body, and the protective layer is covered on water-blocking tape;Multiple steel wires are arranged in receiving space;Wherein, the containing cavity and receiving space are filled with elastomer, and the elastomer in containing cavity completely wraps the optical transmission unit and multiple conductors, and the elastomer in receiving space completely wraps multiple steel wires.

[0007] As a preferred scheme, the central reinforcing member is FRP material.

[0008] As a preferred scheme, the first sleeve and the body are flexible rubber material.

[0009] As a preferred scheme, the water-blocking tape is semiconductor water-blocking tape.

[0010] As a preferred scheme, the protective layer is ASA material.

[0011] As a preferred scheme, the elastomer is foamed TPEE material.

[0012] As a preferred scheme, the optical transmission unit and multiple conductors are evenly distributed in the periphery of central reinforcing member in circumferential direction.

[0013] As a preferred scheme, multiple steel wires are evenly arranged in circumferential direction in receiving space.

[0014] As a preferred scheme, the surface of multiple conductors is plated with tinning layer.

[0015] The utility model has obvious advantages and beneficial effects compared with prior art, specifically speaking, from the above technical scheme can know:

[0016] By filling the accommodating cavity and the receiving space with the elastomer, the elastomer in the accommodating cavity completely wraps the light transmission unit and the plurality of conductors, and the elastomer in the receiving space completely wraps the plurality of steel wires, when the composite cable is bent or wound, the steel wires, the conductors and the light transmission unit in the composite cable are pressed, at this time, the elastomer can provide excellent buffering effect for the three, thereby greatly reducing the stress of the light transmission unit, effectively protecting the light transmission unit, the light transmission unit is not easy to be damaged, and the service life is effectively prolonged.

[0017] In order to more clearly set forth the structural features and functions of the present application, the present application will be described in detail below in conjunction with the drawings and specific embodiments: BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of a preferred embodiment of the present application.

[0019] BRIEF DESCRIPTION OF DRAWINGS:

[0020] 10, first sleeve 101, accommodating cavity

[0021] 20, center reinforcing member 30, light transmission unit

[0022] 31, optical fiber sheath 32, optical fiber

[0023] 33, fiber paste 40, conductor

[0024] 41, tin plating layer 50, second sleeve

[0025] 501, receiving space 51, main body

[0026] 52, water barrier 53, protective layer

[0027] 60, steel wire 70, elastomer. DETAILED DESCRIPTION

[0028] Please refer to Figure 1 It shows the specific structure of the preferred embodiment of the present application, which includes a first sleeve 10, a center reinforcing member 20, a light transmission unit 30, a plurality of conductors 40, a second sleeve 50 and a plurality of steel wires 60.

[0029] The first sleeve 10 has an accommodating cavity 101, in this embodiment, the first sleeve 10 is made of flexible rubber material.

[0030] The center reinforcing member 20 is arranged in the accommodating cavity 101; in this embodiment, the center reinforcing member 20 is made of FRP material.

[0031] The light transmission unit 30 and the plurality of conductors 40 are arranged in the accommodating cavity 101 and are distributed on the periphery of the central reinforcing member 20, the light transmission unit 30 comprises a fiber sheath 31, optical fibers 32 and fiber paste 33, the fiber sheath 31 is arranged in the accommodating cavity 101, the optical fibers 32 are arranged in the fiber sheath 31, and the fiber paste 33 is filled in the fiber sheath 31 and wraps the optical fibers 32; in the embodiment, the light transmission unit 30 and the plurality of conductors 40 are uniformly distributed on the periphery of the central reinforcing member 20 in the circumferential direction, and the surfaces of the plurality of conductors 40 are plated with a tin layer 41.

[0032] The second sleeve 50 is sleeved on the first sleeve 10, the inner wall surface of the second sleeve 50 and the outer surface of the first sleeve 10 form a containing space 501, the second sleeve 50 comprises a body 51, a water-blocking tape 52 and a protective layer 53, the water-blocking tape 52 is wrapped on the body 51, and the protective layer 53 is wrapped on the water-blocking tape 52; in the embodiment, the body 51 is made of flexible rubber material, the water-blocking tape 52 is a semiconductor water-blocking tape, and the protective layer 53 is made of ASA material.

[0033] The plurality of steel wires 60 are arranged in the containing space 501; wherein the accommodating cavity 101 and the containing space 501 are filled with an elastic body 70, the elastic body 70 in the accommodating cavity 101 completely wraps the light transmission unit 30 and the plurality of conductors 40, and the elastic body 70 in the containing space 501 completely wraps the plurality of steel wires 60; in the embodiment, the elastic body 70 is foamed TPEE material; the plurality of steel wires 60 are arranged in the containing space 501 in the circumferential direction.

[0034] The utility model discloses the design emphasis lies in: through filling the elastic body in the accommodating cavity and the containing space, the elastic body in the accommodating cavity completely wraps the light transmission unit and the plurality of conductors, and the elastic body in the containing space completely wraps the plurality of steel wires, when the composite cable is bent or is coiled, the steel wire, the conductor and the light transmission unit in the composite cable are extruded mutually, at this moment, the elastic body can provide excellent buffering effect for the three, thereby greatly reducing the stress of the light transmission unit, effectively protecting the light transmission unit, and the light transmission unit is not easy to be damaged, and the service life is effectively prolonged.

[0035] The above is only the preferred embodiment of the utility model, and does not limit the technical range of the utility model in any aspect, so any slight modification, equivalent change and modification according to the technical essence of the utility model to the above embodiment still belong to the range of the technical scheme of the utility model.

Claims

1. A cushioned composite cable, characterized by: The utility model relates to a kind of optical cable, including a first sleeve, a center reinforcing member, an optical transmission unit, multiple conductors, a second sleeve and multiple steel wires;The first sleeve has a containing cavity, the center reinforcing member is arranged in containing cavity;The optical transmission unit and multiple conductors are arranged in containing cavity and are distributed in the periphery of center reinforcing member, and the optical transmission unit includes optical fiber sheath, optical fiber and fiber paste, the optical fiber sheath is arranged in containing cavity, the optical fiber is arranged in optical fiber sheath, and the fiber paste is filled in optical fiber sheath and wraps optical fiber;The second sleeve is sleeved on the first sleeve, and the inner wall surface of second sleeve and the outer surface of first sleeve form containing space, and the second sleeve includes body, water-blocking tape and protective layer, the water-blocking tape is coated on body, and the protective layer is coated on water-blocking tape;Multiple steel wires are arranged in containing space;Wherein, the containing cavity and containing space are filled with elastomer, and the elastomer in containing cavity completely wraps the optical transmission unit and multiple conductors, and the elastomer in containing space completely wraps multiple steel wires.

2. The cushioned composite cable of claim 1, wherein: The center reinforcing member is made of FRP material.

3. The cushioned composite cable of claim 1, wherein: The first sleeve and the body are made of flexible rubber material.

4. The cushioned composite cable of claim 1, wherein: The water-blocking tape is a semiconductor water-blocking tape.

5. The cushioned composite cable of claim 1, wherein: The protective layer is made of ASA material.

6. The cushioned composite cable of claim 1, wherein: The elastomer is foamed TPEE material.

7. The cushioned composite cable of claim 1, wherein: The optical transmission unit and multiple conductors are evenly distributed in the periphery of the center reinforcing member in circumferential direction.

8. The cushioned composite cable of claim 1, wherein: Multiple steel wires are evenly arranged in circumferential direction in the containing space.

9. The cushioned composite cable of claim 1, wherein: The surface of the multiple conductors is plated with a tin layer.

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