CN219916038U

CN219916038U - Rat and termite prevention optical fiber ribbon cable

Info

Publication number: CN219916038U
Application number: CN202321753193.9U
Authority: CN
Inventors: 丛晓红; 王江山; 刘会天; 王杨; 代成坤; 隋波
Original assignee: Hongan Group Co Ltd
Current assignee: Hongan Group Co Ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2023-10-27
Anticipated expiration: 2033-07-05

Abstract

The utility model belongs to the technical field of cable application and protection, and discloses a rat and termite resistant optical fiber ribbon cable. The utility model relates to a rat and termite resistant optical fiber ribbon cable, which comprises: an optical fiber ribbon (1), a sleeve (2), a structural reinforcement (3) and an outer sheath (4); the optical fiber ribbon (1) is arranged in the accommodating cavity, and the outer sheath (4) is sleeved on the outer side of the sleeve (2); a plurality of convex angles are arranged on the outer side of the outer sheath (4) at intervals, and the structural reinforcement (3) is arranged in each convex angle. According to the scheme, the outer jacket is arranged on the outer side of the sleeve, and the structural reinforcement is arranged in the convex angle on the outer periphery of the outer jacket, so that the outer periphery of the outer jacket is firmer, the biting damage of rats and ants is effectively resisted, and the optical fiber ribbon arranged in the outer jacket is fully protected.

Description

Rat and termite prevention optical fiber ribbon cable

Technical Field

The utility model belongs to the technical field of cable application and protection, and particularly relates to a rat and termite resistant optical fiber ribbon cable.

Background

The China is in the stage of high-speed development of the communication industry, the 5G age comes, the development of the industry is both opportunity and challenge, the current rat-proof optical cable has smaller optical fiber capacity, higher manufacturing cost and limited application condition.

In the aspects of industry and traffic, the damage of mice to the optical cable is mainly represented in the aspects of faults, communication interruption and the like caused by biting the optical cable, and the direct economic loss caused by accidents can reach tens of thousands of yuan or even hundreds of thousands of yuan. For example, in warehouses, ships and trains, the cases of biting goods and luggage by mice are frequent, and more importantly, the phenomena of serious accidents caused by failure of steering engines and stop of navigation equipment due to biting of communication optical cables by mice also occur. The inner and outer protective layers of the cable are not termite food, but damage the cable protective layer when finding food, so that the cable protective layer can be bitten through to make the cable insulation wet and damaged. Particularly in some forest areas and mountain areas, the rain water is abundant, the human smoke is rare, the cable is suitable for the reproduction of rats and ants, and the interference of rats and ants and the ants brings great threat to the safe and stable operation of the cable.

Accordingly, there is a need to provide an optical fiber ribbon cable that is effective against damage from termites and rats to overcome the above-mentioned problems, avoiding potential safety hazards and unnecessary economic losses.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and aims to provide the rat and termite preventing optical fiber ribbon optical cable capable of effectively preventing rat and termite from being damaged, so that the use reliability of the optical cable is improved, and the purposes of avoiding potential safety hazards and unnecessary economic losses are achieved.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that: a rat-proof and termite-proof fiber optic ribbon cable comprising: optical fiber ribbons, ferrules, structural reinforcements, and outer jackets. The optical fiber ribbon is arranged in the accommodating cavity, and the outer sheath is sleeved on the outer side of the sleeve;

and a plurality of convex angles are arranged on the outer side of the outer sheath at intervals, and the structural reinforcement is arranged in each convex angle.

According to a specific embodiment of the present utility model, the rat-proof and termite-proof optical fiber ribbon cable further comprises: and (3) a water blocking belt.

The water-blocking tape is an elastic piece and sleeved outside the sleeve and used for preventing moisture from penetrating into the sleeve.

According to a specific embodiment of the present utility model, the rat-proof and termite-proof optical fiber ribbon cable further comprises: the protective layer is arranged on the outer side of the water blocking belt and used for preventing the water blocking belt from being worn and damaged.

According to a specific embodiment of the utility model, the inner side of the outer sheath is in fit connection with the outer side of the protective layer.

According to a specific embodiment of the utility model, the sleeve is a cylindrical tubular member.

A mounting pore canal is arranged on one side of the outer sheath, which is close to the protective layer, and the mounting pore canal is arranged along the axial direction of the sleeve; the installation pore canal is provided with a plurality of installation pore canals, and a plurality of installation pore canals are the same from the distance of sleeve pipe axis.

According to a specific embodiment of the present utility model, the rat-proof and termite-proof optical fiber ribbon cable further comprises: and the filling piece is arranged in the mounting pore canal.

According to a specific embodiment of the utility model, a groove is arranged on the periphery of the filling piece, and a protrusion corresponding to the groove is arranged on the peripheral wall of the mounting hole.

The recess is inserted into the projection when the filler is mounted in the mounting hole.

According to a specific embodiment of the utility model, a protrusion is arranged on the periphery of the filling member, and a groove corresponding to the protrusion is arranged on the peripheral wall of the mounting hole.

According to a specific embodiment of the present utility model, a plurality of the optical fiber ribbons are provided, and a plurality of the optical fiber ribbons are disposed in the receiving cavity of the ferrule.

By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects.

(1) In the utility model, the outer sheath is arranged on the outer side of the sleeve, so that the optical fiber ribbon arranged in the sleeve is more fully protected;

(2) According to the utility model, the structural reinforcement is arranged in the convex angle at the periphery of the outer sheath, so that the periphery of the outer sheath is firmer, and the biting damage of rats and ants is effectively resisted;

(3) According to the utility model, the filler is arranged to further support the outer sheath and simultaneously support the structural strength of the optical cable, so that the problem of limited or interrupted transmission caused by excessive bending of the optical cable is avoided.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

fig. 1 is a schematic structural view of a cross section of a rat-proof and termite-proof optical fiber ribbon cable in a direction perpendicular to an axis in an embodiment of the present utility model.

The main elements in the figure are illustrated:

1. an optical fiber ribbon; 2. a sleeve; 3. a structural reinforcement; 4. an outer sheath; 5. a water blocking tape; 6. a protective layer; 7. and (5) filling pieces.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the rat-proof and termite-proof optical fiber ribbon cable of the present utility model comprises: ribbon 1, ferrule 2, structural reinforcement 3, and outer jacket 4.

The inside of the sleeve 2 is provided with a containing cavity, the optical fiber ribbon 1 is arranged in the containing cavity, and the outer sheath 4 is sleeved outside the sleeve 2;

wherein, a plurality of convex angles are arranged on the outer side of the outer sheath 4 at intervals, and the structural reinforcement 3 is arranged in each convex angle.

By adopting the above scheme, the outer sheath 4 is arranged on the outer side of the sleeve 2, so that the optical fiber ribbon 1 arranged therein is more fully protected; furthermore, under the premise, the structural reinforcement 3 is arranged in the convex angle at the periphery of the outer sheath 4, so that the periphery of the outer sheath 4 is firmer, and the biting damage of rats and ants is effectively resisted.

The optical fiber ribbon 1 is a thin flat ribbon formed by arranging a plurality of (typically 4 to 24) optical fibers in parallel and curing the optical fibers by UV. The optical fiber ribbon 1 can accommodate more optical fibers in a limited space than a single optical fiber, providing a higher transmission density.

In a specific implementation manner of this embodiment, a plurality of optical fiber ribbons 1 are provided, and a plurality of optical fiber ribbons 1 are disposed in the accommodating cavity of the ferrule 2. Referring to fig. 1, a plurality of optical fiber ribbons 1 are arranged in the ferrule 2 at intervals up and down (see the label in fig. 1 for specific directions).

By adopting the scheme, the plurality of groups of optical fiber belts are arranged in the accommodating cavity of the sleeve 2, so that the inner space of the pipeline 2 can be effectively utilized, and information transmission with larger density can be realized.

In a specific implementation manner of this embodiment, a buffer portion is disposed inside the sleeve 2. The buffer part is filled with the sleeve 2, an optical fiber ribbon placement area is arranged in the buffer part, and the optical fiber ribbon 1 is placed in the optical fiber placement area.

By adopting the scheme, the problem that the optical fiber ribbon 1 shakes abnormally in the sleeve 2 and even causes collision damage can be avoided, and the reliability of the optical cable is ensured.

In a specific implementation manner of this embodiment, a supporting frame is disposed in the buffer portion, the supporting frame is disposed in the ribbon-placing area, and the ribbon 1 is disposed in the supporting frame.

By adopting the scheme, the optical fiber ribbon 1 is effectively prevented from being excessively extruded, and the reliability of the optical cable is ensured.

In a specific implementation of this embodiment, the sleeve 2 coincides with the central axis of the outer sheath 4.

In a specific implementation of this embodiment, the outer sheath 4 is disposed outside the sleeve 2, and the outer sheath 4 is a component that directly contacts the external environment. The outer sheath 4 is a special-shaped protective sheath, referring to fig. 1, the outer sheath 4 comprises a circular sheath main body and convex angles which are arranged on the circumference of the sheath main body and extend outwards in the radial direction of the sheath main body. The convex angle is formed by converging the convex angle along the radial outward extension of the sheath main body (see figure 1), and the convex angle and the part connected with the sheath main body form the convex angle. The structural reinforcement 3 is hidden inside the lobe, the structural reinforcement 3 being substantially cylindrical (accordingly, substantially circular in cross-section, as shown in figure 1). The distance from the central axis of the structural reinforcement 3 to the central axis of the outer sheath 4 is smaller than the distance from the sharp angle to the central axis of the outer sheath 4, namely: the structural reinforcement 3 is hidden at the end of the outer sheath 4 remote from the sleeve 2.

By arranging the convex angle, the rats have no lower mouth to bite, and the safety of the cable is ensured.

In a specific implementation of this example, the outer sheath 4 is made of synthetic fibers, such as nylon (polyamide fibers). Based on the characteristics of high strength, good wear resistance, good elasticity and rebound resilience, quick drying property and corrosion resistance, the cable is better protected. By adopting the nylon structure, the potential threat of pollution to the environment is smaller while the use performance is ensured.

In a specific implementation of this embodiment, the structural reinforcement 3 is made of fiber reinforced composite (FRP) material, and has excellent mechanical properties and corrosion resistance.

In a specific implementation manner of this embodiment, a plurality of the convex corners are provided, and the sharp corners of the plurality of convex corners extend radially outward from the outer sheath 4 by equal distances.

When the rat and termite resistant optical fiber ribbon cable provided by the implementation is specifically paved, a special guiding tool can be adopted for paving. The guiding tool is provided with a beam penetrating hole which corresponds to the outer periphery of the outer sheath 4 in shape, and the rat and termite resistant optical fiber ribbon optical cable is strung into the beam penetrating hole. Compared with the conventional optical cable, the optical cable provided by the embodiment has the advantages that torsion dislocation is not caused during laying (so that the light guide medium in the optical fiber is not extruded), namely, the high efficiency of information transmission is ensured to a certain extent.

In a specific implementation of this embodiment, the structural reinforcement 3 is provided with multiple layers, the multiple layers of structural reinforcement 3 being disposed in the lobes. For example, in one specific application, the structural reinforcement 3 is provided in two layers, with all structural reinforcements 3 provided in a first layer being referred to collectively as a first layer reinforcement structure and all structural reinforcements 3 provided in a second layer being referred to collectively as a second layer reinforcement structure. The distance from the first layer of reinforcing structure to the central axis of the outer sheath 4 is greater than the distance from the second layer of reinforcing structure to the central axis of the outer sheath 4.

In a specific implementation of this embodiment, the diameter of each structural reinforcement 3 in the first layer of reinforcement structure is smaller than the diameter of each structural reinforcement 3 in the second layer of reinforcement structure.

In a specific implementation manner of this embodiment, the rat-proof and termite-proof optical fiber ribbon cable further includes: and a water blocking tape 5.

The water blocking belt 5 is an elastic piece with certain elasticity, and the water blocking belt 5 is sleeved on the outer side of the sleeve 2 and is used for preventing moisture from longitudinally penetrating into the sleeve 2 from the outer side.

In a specific implementation manner of this embodiment, the rat-proof and termite-proof optical fiber ribbon cable further includes: and a protective layer 6. The protective layer 6 is arranged on the outer side of the water blocking tape 5 and is used for preventing the water blocking tape 5 from being worn and damaged.

In a specific implementation of this embodiment, the protective layer 6 is coated on the side of the water-blocking tape 5 remote from the sleeve 2 (outside the water-blocking tape 5).

In a specific implementation of this embodiment, the protective layer 6 is a polyester coating. The water-blocking tape 5 and other structures inside are protected based on the characteristics of high strength, flame retardance, corrosion resistance and smooth surface of the material. When the service life of the optical fiber is too long, if the problem occurs in the guide way inside the optical fiber, the natural possibility of the optical fiber exists, and the outdoor fire caused by spontaneous combustion of the optical fiber can be effectively avoided by arranging the protective layer 6 with heat insulation and flame retardance. It can be seen that the protective layer 6 not only protects the external environment from damage and influences the optical fiber, but also prevents the optical fiber itself from damaging the external environment in case of sudden accidents.

In a specific implementation of this embodiment, the protective layer 6 may be provided as a separate sleeve on the outside of the water-blocking tape 5 as the water-blocking tape 5 is sleeved on the sleeve 2. The protective layer 6 is made of polyester fibers.

In a specific implementation manner of this embodiment, the inner side of the outer sheath 4 is attached to the outer side of the protective layer 6.

In a specific implementation of this embodiment, the sleeve 2 is a cylindrical tubular member.

The side of the outer sheath 4, which is close to the protective layer 6, is provided with a mounting duct, and the mounting duct is arranged along the axial direction of the sleeve 2. The installation pore canal is provided with a plurality of installation pore canals, and the distance between the installation pore canals and the axis of the sleeve 2 is the same.

In a specific implementation manner of this embodiment, the rat-proof and termite-proof optical fiber ribbon cable further includes: and a filling member 7, wherein the filling member 7 is arranged in the mounting hole.

By adopting the scheme, through setting up the filler 7, to the structural strength of optical cable plays the supporting role when playing further supporting role to outer sheath 4, avoids appearing because of the excessive bending of optical cable leads to transmitting limited or the problem of outage.

In a specific implementation manner of this embodiment, the filling member 7 is made of carbon fiber, and the filling member 7 has low unit mass and high strength, and also has certain flexibility of textile fiber.

By adopting the scheme, a shielding net with an electromagnetic signal shielding function is formed in the optical cable, and the cable is protected from electromagnetic interference, so that the optical cable information transmission is ensured to be quick, accurate and clean.

In another specific implementation of this embodiment, both the filler 7 and the structural reinforcement 3 are made of fiber reinforced composite (FRP) material. The rat and termite resistant optical fiber ribbon cable further comprises a connecting member (not shown in the drawings) having one end connected to the filler member 7 and the other end connected to the structural reinforcement member 3. Correspondingly, the outer sheath 4 is provided with a receiving channel (not shown) for receiving the connecting component along the radial direction thereof, and the connecting component is arranged in the receiving channel.

Because after long time, the deformation of the outer sheath 4 is relatively soft, which results in the change of the original optical cable laying position, by adopting the scheme, the protection of the internal optical fiber and the external rat and termite biting resistance are further improved through the structure that the filling piece 7 is connected with the structural reinforcing piece 3.

In a specific implementation of this embodiment, the filler 7 and the structural reinforcement 3 are connected by the connecting means. The filler 7 and the structural reinforcement 3 may be connected in one-to-one correspondence (the one-to-one correspondence here includes that the connecting members are connected radially along the outer sheath 4, and also includes that a plurality of connecting members intersect each other to connect the filler 7 and the structural reinforcement 3, which correspond to each other, one of the connecting members may be connected to one of the filler 7 and simultaneously connected to a plurality of the structural reinforcement 3, and one of the connecting members may be connected to one of the structural reinforcement 3 and simultaneously connected to a plurality of the filler 7.

In a specific implementation manner of this embodiment, a groove is disposed on the outer periphery of the filling member 7, and a protrusion corresponding to the groove is disposed on the peripheral wall of the mounting hole.

In a specific implementation manner of this embodiment, a protrusion is provided on the outer periphery of the filling member 7, and a groove corresponding to the protrusion is provided on the peripheral wall of the mounting hole.

By adopting the scheme, through setting up matched with concave-convex structure, guarantee that filling piece 7 position is fixed, can not take place radial float, guarantee its bearing function's reliability.

In a specific implementation manner of this embodiment, referring to fig. 1, the filling member 7 is provided with a plurality of protrusions, and the filling member 7 has a "star" structure. Correspondingly, the mounting duct also has a matched star-shaped structure.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present utility model.

Claims

1. A rat-proof and termite-proof optical fiber ribbon cable, comprising:

an optical fiber ribbon (1), a sleeve (2), a structural reinforcement (3) and an outer sheath (4);

the optical fiber ribbon (1) is arranged in the accommodating cavity, and the outer sheath (4) is sleeved on the outer side of the sleeve (2);

a plurality of convex angles are arranged on the outer side of the outer sheath (4) at intervals, and the structural reinforcement (3) is arranged in each convex angle.

2. The rat-and-termite resistant fiber optic ribbon cable of claim 1, further comprising: the waterproof belt (5), the waterproof belt (5) is an elastic piece, and the waterproof belt (5) is sleeved on the outer side of the sleeve (2) and used for preventing moisture from penetrating into the sleeve (2).

3. The rat-and-termite resistant fiber optic ribbon cable of claim 2, further comprising: the protective layer (6), the protective layer (6) is arranged on the outer side of the water blocking belt (5) and is used for avoiding abrasion damage of the water blocking belt (5).

4. A rat-and termite-proof optical fiber ribbon cable according to claim 3, wherein the inner side of the outer sheath (4) is in adhesive connection with the outer side of the protective layer (6).

5. A rat-and termite-resistant optical fiber ribbon cable according to claim 4, wherein the sleeve (2) is a cylindrical tubular member;

a mounting pore canal is formed in one side, close to the protective layer (6), of the outer sheath (4), and the mounting pore canal is arranged along the axial direction of the sleeve (2);

the installation pore canal is provided with a plurality of installation pore canals, and the distance between the installation pore canals and the axis of the sleeve (2) is the same.

6. The rat-and-termite resistant fiber optic ribbon cable of claim 5, further comprising: and the filling piece (7) is arranged in the mounting pore canal.

7. The rat-and termite-resistant optical fiber ribbon cable according to claim 6, wherein the filler (7) is provided with a groove on its outer circumference, and the peripheral wall of the mounting duct is provided with a protrusion corresponding to the groove;

8. The rat-and termite-resistant optical fiber ribbon cable according to claim 6, wherein the filler (7) is provided with protrusions on its outer circumference, and the peripheral wall of the mounting duct is provided with grooves corresponding to the protrusions;

9. A rat-and termite-resistant optical fiber ribbon cable according to any of claims 1-8, wherein a plurality of optical fiber ribbons (1) are provided, a plurality of said optical fiber ribbons (1) being arranged in a receiving cavity of the ferrule (2).