CN212135013U

CN212135013U - Waterproof resistance to compression optical cable of ultralow decay

Info

Publication number: CN212135013U
Application number: CN202020655330.5U
Authority: CN
Inventors: 律晓军; 王文彬; 李丽
Original assignee: Wuhan Yilian Hd Information Technology Co Ltd
Current assignee: Wuhan Yilian Hd Information Technology Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-12-11
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses an ultra-low decay waterproof resistance to compression optical cable, including optic fibre integrated configuration, optic fibre integrated configuration includes five to eight equidistant annular distribution's the optical fiber body and a central reinforcement, and five to eight optical fiber body equidistance annular distribution on the outer wall of central reinforcement, the parcel has same steel type composite band on the outer wall of optical fiber body and central reinforcement, the outer wall equidistance staggered distribution in steel type composite band has the rigid support and unloads the power support, and the outer wall joint of rigid support and the support of unloading has the PE sheath. The utility model discloses in the aspect of low decay and resistance to compression, through crisscross distribution unload power support and rigid support overcoat, when improving bulk strength, receive external pressure and make, the rigid support of both sides provides good support, and the power support of unloading at middle part unloads power through the micro-deformation inflation, and the central reinforcement at cooperation middle part utilizes side capsule and rubber extrusion particle to disperse pressure to other direction supports, improves the crushing resistance.

Description

Waterproof resistance to compression optical cable of ultralow decay

Technical Field

The utility model relates to an optical cable technical field especially relates to a waterproof resistance to compression optical cable of ultralow decay.

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 fibers (thin glass filaments like hair), a plastic protective sleeve and a plastic sheath, and metals such as gold, silver, copper and aluminum are not contained in the optical cable, so that the optical cable generally has no recycling value. The optical cable is a communication line which is formed by a certain number of optical fibers according to a certain mode to form a cable core, is coated with a sheath, and is also coated with an outer protective layer for realizing optical signal transmission.

The existing optical cable is buried in the ground, except for soil buried outside the surface of the optical cable, the optical cable needs to bear external pressure, the protection performance in the interior is better, and the influence of water in the soil and surface water on the transmission of internal signals is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an ultralow-attenuation waterproof compression-resistant optical cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the ultra-low attenuation waterproof compression-resistant optical cable comprises an optical fiber combined structure, wherein the optical fiber combined structure comprises five to eight optical fibers and a central reinforcement member which are distributed in an annular mode at equal intervals, the five to eight optical fibers are distributed on the outer wall of the central reinforcement member in an annular mode at equal intervals, the outer walls of the optical fibers and the central reinforcement member are wrapped by the same steel type composite belt, rigid supports and force unloading supports are distributed on the outer wall of the steel type composite belt in an staggered mode at equal intervals, PE sheaths are clamped on the outer walls of the rigid supports and the force unloading supports, the rigid supports and the force unloading supports are of regular triangular structures, each force unloading support comprises a joint edge, two fiber composite elastic surfaces and a support edge, the support edges are arranged at the joints of the joint edges and the two fiber composite elastic surfaces, and the joint edges of the joints of the two fiber composite elastic surfaces are clamped on the inner wall of the PE sheath.

As a further aspect of the present invention, a first filling gap is left between the optical fiber body and the central reinforcement, and the inner wall of the first filling gap is filled with cable paste.

As the utility model discloses further scheme, the optical fiber body includes optic fibre and pine sleeve pipe, and the optic fibre equidistance is arranged at pine sheathed tube inner wall middle part, it has fine cream to fill on the outer wall that the pine sleeve pipe is located optic fibre.

As a further aspect of the present invention, the central reinforcement comprises side capsules and rubber extrusion particles, and the side capsules are equidistantly distributed on the inner wall of the central reinforcement, the rubber extrusion particles are uniformly filled on the inner wall of the side capsules.

As a further aspect of the present invention, the middle portion of the attaching edge is an arch structure, and the inner wall of the attaching edge is engaged with the outer wall of the steel type composite belt.

As a further aspect of the present invention, the steel type composite belt includes three to four spiral steel belts and a waterproof interlayer, and the waterproof interlayer is located at the junction of three to four spiral steel belts.

The utility model has the advantages that:

1. in the aspect of low attenuation and compression resistance, the stress-relief brackets and the rigid bracket supporting sleeves are distributed in a staggered manner, so that the overall strength is improved, the rigid brackets on two sides provide good support when external pressure is applied, when one side is stressed, the stress-relief bracket in the middle expands and relieves stress through micro deformation, and the stress is dispersed to the brackets in other directions by utilizing side capsules and rubber extrusion particles by matching with a central reinforcing piece in the middle, so that the overall compression resistance is improved;

2. in the aspect of water resistance, the outer layers of the force-unloading support and the rigid support are triangular closed structures, meanwhile, the middle part of the force-unloading support and the rigid support block water by using a steel-type composite belt, and the steel-type composite belt is in a spiral structure and is combined with a waterproof belt, so that the overall waterproof property is improved.

Drawings

Fig. 1 is a schematic view of an overall cross-sectional structure of an ultra-low attenuation waterproof compression-resistant optical cable provided by the utility model;

FIG. 2 is a schematic cross-sectional view of a central reinforcing body of an ultra-low attenuation waterproof compression-resistant optical cable according to the present invention;

fig. 3 is a schematic structural view of an ultra-low attenuation waterproof compression-resistant optical cable provided by the utility model;

fig. 4 is the utility model provides an ultra-low decay waterproof resistance to compression optical cable's power of unloading support spatial structure sketch map.

In the figure: the composite cable comprises a PE sheath 1, a rigid support 2, a force unloading support 3, a fiber paste 4, a loose tube 5, an optical fiber 6, a central reinforcing part 7, a cable paste 8, a steel type composite belt 9, a side capsule 10, rubber extrusion particles 11, a fiber composite elastic surface 12, a supporting edge 13 and a bonding edge 14.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-4, an ultra-low attenuation waterproof compression-resistant optical cable comprises an optical fiber composite structure, the optical fiber composite structure comprises five to eight optical fiber bodies and a central reinforcement 7 which are annularly distributed at equal intervals, the five to eight optical fiber bodies are annularly distributed on the outer wall of the central reinforcement 7 at equal intervals, the outer walls of the optical fiber bodies and the central reinforcement 7 are wrapped with the same steel type composite belt 9, rigid supports 2 and unloading supports 3 are equidistantly and alternately distributed on the outer wall of the steel type composite belt 9, the outer walls of the rigid supports 2 and the unloading supports 3 are clamped with PE sheaths 1, the rigid supports 2 and the unloading supports 3 are both in regular triangle structures, the unloading supports 3 comprise a joint edge 14, two fiber composite elastic surfaces 12 and a support edge 13, the support edge 13 is arranged at the joint of the joint edge 14 and the two fiber composite elastic surfaces 12, the joint edge 14 at the joint of the two fiber composite elastic surfaces 12 is clamped on the inner wall of the PE sheaths 1, leave first packing clearance between the optical fiber body and central reinforcement 7, and the inner wall packing in first packing clearance has cable cream 8, the optical fiber body includes optic fibre 6 and loose tube 5, and optic fibre 6 equidistance is arranged at the inner wall middle part of loose tube 5, loose tube 5 is located and is filled fine cream 4 on the outer wall of optic fibre 6, central reinforcement 7 includes side capsule 10 and rubber extrusion particle 11, and side capsule 10 equidistance distributes on the inner wall of central reinforcement 7, rubber extrusion particle 11 evenly fills on the inner wall of side capsule 10, the middle part of laminating limit 14 is domes, and the inner wall of laminating limit 14 is cut and is closed on the outer wall of steel type composite band 9, steel type composite band 9 includes three to four spiral steel bands and waterproof intermediate layer, and waterproof intermediate layer is located the junction of three to four spiral steel bands.

The working principle is as follows: when the ultralow-attenuation waterproof compression-resistant optical cable is used, the low attenuation and compression resistance are shown in the aspects that the outer wall is the PE sheath 1, the inner layer is supported by the outer sleeves through the force-unloading supports 3 and the rigid supports 2 which are distributed in a staggered mode, the rigid supports 2 on two sides provide good support when external pressure is applied, the force-unloading supports 3 in the middle are subjected to force unloading through micro-deformation expansion under the pressure at a stress point, the central reinforcing part 7 in the middle is matched, the pressure is dispersed to supports in other directions by utilizing the side capsules 10 and the rubber extrusion particles 11, in the aspect of water resistance, the force-unloading supports 3 and the rigid supports 2 are of a triangular closed structure on the outer layer, meanwhile, water is blocked by utilizing the steel-type composite belt 9 in the middle, and the steel-type composite belt 9 is combined with a spiral structure and a waterproof belt.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An ultra-low attenuation waterproof compression-resistant optical cable comprises an optical fiber composite structure and is characterized in that the optical fiber composite structure comprises five to eight optical fiber bodies and a central reinforcing member (7) which are distributed annularly at equal intervals, the five to eight optical fiber bodies are distributed annularly at equal intervals on the outer wall of the central reinforcing member (7), the outer walls of the optical fiber bodies and the central reinforcing member (7) are wrapped by a same steel type composite belt (9), rigid supports (2) and force unloading supports (3) are distributed on the outer wall of the steel type composite belt (9) at equal intervals in a staggered manner, PE sheaths (1) are clamped on the rigid supports (2) and the outer walls of the force unloading supports (3), the rigid supports (2) and the force unloading supports (3) are of regular triangular structures, and the force unloading supports (3) comprise a joint edge (14), two fiber composite elastic surfaces (12) and a support edge (13), the support edge (13) is arranged at the joint of the joint edge (14) and the two fiber composite elastic surfaces (12), and the joint edge (14) at the joint of the two fiber composite elastic surfaces (12) is clamped on the inner wall of the PE sheath (1).

2. The ultra-low attenuation waterproof compression-resistant optical cable according to claim 1, wherein a first filling gap is left between the optical fiber body and the central reinforcing member (7), and the inner wall of the first filling gap is filled with cable paste (8).

3. The ultra-low attenuation waterproof and pressure-resistant optical cable according to claim 1, wherein the optical fiber body comprises optical fibers (6) and a loose tube (5), the optical fibers (6) are arranged in the middle of the inner wall of the loose tube (5) at equal intervals, and the loose tube (5) is positioned on the outer wall of the optical fibers (6) and filled with fiber paste (4).

4. The ultra-low attenuation waterproof and pressure-resistant optical cable according to claim 1, wherein the central strength member (7) comprises side capsules (10) and rubber extruded particles (11), and the side capsules (10) are equidistantly distributed on the inner wall of the central strength member (7), and the rubber extruded particles (11) are uniformly filled on the inner wall of the side capsules (10).

5. The ultra-low attenuation waterproof compression-resistant optical cable according to claim 1, wherein the middle part of the attaching edge (14) is of an arch structure, and the inner wall of the attaching edge (14) is jointed on the outer wall of the steel type composite strip (9).

6. The ultra-low attenuation waterproof compression-resistant optical cable according to claim 1, wherein the steel type composite belt (9) comprises three to four spiral steel belts and waterproof interlayers, and the waterproof interlayers are positioned at the joints of the three to four spiral steel belts.