CN216118136U

CN216118136U - Non-metal rat-proof optical cable

Info

Publication number: CN216118136U
Application number: CN202122842649.6U
Authority: CN
Inventors: 包耀文; 黄剑峰; 黄勤; 王晓艳
Original assignee: Changfei Photoelectric Cable Suzhou Co ltd
Current assignee: Changfei Photoelectric Cable Suzhou Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-03-22
Anticipated expiration: 2031-11-19

Abstract

The utility model belongs to the technical field of optical cables, and discloses a nonmetal rat-proof optical cable which is provided with a plurality of optical fibers, a loose tube, a first protective layer (3) and a second protective layer (6), and is characterized in that: an inner cushion layer (4) and a rat-proof component are arranged between the first protective layer (3) and the second protective layer (6), the inner cushion layer (4) is tightly attached to the first protective layer (3), and the rat-proof component is coated outside the inner cushion layer (4); the rat-proof component consists of a rat-proof base layer (5), a plurality of convex bodies (51) and a rat-proof object (511), wherein the rat-proof object is positioned in the convex bodies; the adjacent rows of convexes are aligned at adjacent positions, and in the non-metallic ratproof optical cable, the outer surfaces of the convexes are attached to the inner surface of the second protective layer. The utility model has the following main beneficial effects: the structure is simpler, the manufacture is easier, the rat-proof effect is better, the product structure is more stable and reliable, and the device is more suitable for torpedo areas, strong current occasions and severe environment occasions.

Description

Non-metal rat-proof optical cable

Technical Field

The utility model belongs to the technical field of optical cables, and particularly discloses a nonmetal rat-proof optical cable.

Background

With the development of the communication industry, optical fiber cables are used more and more, the optical cables are generally composed of loose tubes containing optical fibers, protective layers and jacket layers, the protective layers are steel strips, aluminum strips and the like, the jacket layers are generally polyethylene or improved composite polyolefin, and rat-proof material components can be added into the jacket layers to meet the rat-proof requirement. The main rat-proof optical cables in the prior art are as follows.

CN212135005U discloses a barbed wire armored optical cable, aiming at the problem that the existing optical cable is provided with a stainless steel hose inside and has complex processing technique, the problem that the optical cable cannot be bent naturally by changing the metal hard tube, and the outer sheath is easy to damage because the metal layer is arranged in the inner layer of the optical cable is solved by the following scheme, which comprises a plurality of optical fiber bundles, wherein the end parts of the optical fiber bundles are fixedly provided with loose tubes, one side of the plurality of optical fiber bundles close to each other is provided with the same reinforcing piece, the optical fiber bundles are annularly arranged, the optical cable core is formed by combining the optical fiber bundles, the reinforcing piece and the loose tube, the barb of the steel wire is favorable for preventing rats from climbing and biting, birds from standing and pecking and biting, the barb of the steel wire is favorable for preventing mankind from climbing and hacking, the production process can be simplified, and compared with the directly adopted metal sleeve armor, the barb armor of the steel wire has lower hardness and can naturally bend along with the cable core. The steel wire is inconvenient to manufacture, easy to hurt operators in production, inspection, packaging, construction and the like, and easy to be broken by the barbs of the steel wire.

CN210516286U discloses a prevent tearing and bite cable, its technical scheme main points are including the sinle silk, the sinle silk outer cladding has the internal insulation layer, the internal insulation layer outer cladding has the external insulation layer, the external insulation layer outside is provided with prevents tearing and bites the layer, prevent tearing and sting the layer and include the bracing piece, protection needle and main thorn needle, the bracing piece is equipped with a plurality ofly, spread all over the outer peripheral face of external insulation layer, the one end and the external insulation layer of bracing piece are connected, the other end is connected with the protection needle, the both ends of protection needle are the pinpoint form, the both ends of protection needle are to the direction bending that is close to the external insulation layer, the plane end of main thorn needle and the outer peripheral face fixed connection of bracing piece, the most advanced slope of main thorn needle is to the direction of keeping away from the bracing piece, reach the effect that the mouse gnaw the cable. The pricking pin is inconvenient to process and is easy to accidentally injure people and other animals;

CN213635439U discloses an underground direct-buried cable with a rat bite prevention function, which comprises a flame-retardant outer sheath, a flame-retardant inner sheath, a thickened aluminum foil shielding layer, a reinforcing rope, a cable conductor, a limiting plate, a rat bite prevention mechanism and a waterproof coating film, wherein the flame-retardant inner sheath is fixedly connected in the flame-retardant outer sheath through the rat bite prevention mechanism, the waterproof coating film is fixedly connected at the inner side of the flame-retardant inner sheath, the reinforcing rope is fixedly connected at the middle position of the inner side of the waterproof coating film, a group of cable conductors are uniformly and fixedly connected in the waterproof coating film and positioned at the outer side of the reinforcing rope, the cable can be effectively reinforced through a longitudinal steel belt of the rat bite prevention mechanism, so that a rat can be effectively prevented from biting the cable, meanwhile, the cable can be pricked into the rat through a contact pin when the flame-retardant outer sheath is bitten or the flame-retardant outer sheath is extruded by the rat, so that the rat can be prevented from continuously biting the cable, the mouse-bite prevention function of the cable is realized.

In the above schemes, a sharp needle is adopted for rat prevention, one is inconvenient in production, the second is unsafe for operators in use, the third is inconvenient in coiling, the fourth is damage to the cable when the cable is subjected to large pressure, and the fifth is a metal structure and is not suitable for use in mountainous areas with much thunder.

CN204679699U discloses a light rat-proof indoor optical cable, which comprises an optical fiber, a tight-wrapping layer, a filler, a wrapping layer, a bite-preventing layer, a rat-proof wrapping layer and a rat-proof sheath layer. The tight cladding layer is wrapped outside the optical fiber, a layer of cladding layer is wound outside the tight cladding layer, a filler is filled between the tight cladding layer and the cladding layer, and the cladding layer is sequentially wrapped with the occlusion resistant layer, the rat-proof cladding layer and the rat-proof sheath layer. The rat-proof belting layer can stab the oral cavity of a rat when the rat bites the rat, the bite-preventing layer can protect the optical cable from being torn, the optical cable is effectively protected from being damaged, and the rat-proof belting layer is made of light non-metal materials, light in weight, soft and suitable for being used in indoor environments with rat diseases. The ratproof wrapping layer is a rubber-coated glass fiber tape. It is only suitable for single-core optical cable structure, so the application range is smaller and the acupuncture production and storage are inconvenient.

CN205861946U discloses a rat-proof ADSS optical cable, which comprises a central optical unit, wherein a PE inner sheath, an aramid yarn, a glass yarn and a rat-proof outer sheath are sequentially coated outside the central optical unit; wherein capsaicin is arranged in the rat-proof outer sheath. The optical cable is protected by the glass yarn as physical protection and the capsaicin as chemical protection, so that the gnawing of squirrels to the optical cable can be effectively prevented; the glass yarns and the capsaicin are added without adopting metal protection, so that the nonmetal optical cable meeting ADSS is met; compared with the method of using multilayer sheath armor for realizing rat prevention, the weight of the optical cable implemented according to the method is lighter than that of metal armor, and the construction operation of the optical cable is more convenient; fourthly, the rat-proof effect is obvious, and the service life of the optical cable is ensured.

In the prior art, for the ADSS optical cable, as known by those skilled in the art, the ADSS optical cable is generally used on an overhead high-voltage power tower, actually, rats are very few, capsaicin is added to a rat-proof outer sheath, and pungent odor is emitted in the production process, which often brings discomfort to operators, on the other hand, after the capsaicin is added to a sheath material with polyolefin as a base material, a spark machine cannot be turned on any more during sheath making, the thickness of the sheath cannot be effectively monitored on line, and after the spark machine is turned on, impurities in the sheath obviously reduce the insulation of the sheath, and the sheath is often broken down under the same spark voltage, so that serious quality hidden danger is brought to the product.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model discloses a nonmetal rat-proof optical cable which is realized by adopting the following technical scheme.

The utility model provides a nonmetal protection against rodents optical cable, has many optic fibre, with the pine sleeve pipe that all optic fibre cladding lived, be located the first protective layer outside the pine sleeve pipe, be located the second protective layer outside the first protective layer, its characterized in that: an inner cushion layer and a rat-proof component are arranged between the first protective layer and the second protective layer, the inner cushion layer is tightly attached to the first protective layer, and the rat-proof component is coated outside the inner cushion layer; the rat-proof component consists of a rat-proof base layer, a plurality of convex bodies and a rat-proof object, wherein the convex bodies protrude upwards from the upper surface of the rat-proof base layer, and the rat-proof object is positioned in the convex bodies; the convex bodies are distributed on the ratproof base layer at intervals in rows along the length direction of the ratproof base layer, the convex bodies in adjacent rows are aligned at adjacent positions, and in the nonmetal ratproof optical cable, the outer surfaces of the convex bodies are attached to the inner surface of the second protective layer.

Above-mentioned nonmetal protection against rodents optical cable, its characterized in that: the convex bodies of adjacent rows are offset in adjacent positions.

The utility model provides a nonmetal protection against rodents optical cable, has many optic fibre, with the pine sleeve pipe that all optic fibre cladding lived, be located the first protective layer outside the pine sleeve pipe, be located the second protective layer outside the first protective layer, its characterized in that: an inner cushion layer and a rat-proof component are arranged between the first protective layer and the second protective layer, the inner cushion layer is tightly attached to the first protective layer, and the rat-proof component is coated outside the inner cushion layer; the rat-proof component consists of a rat-proof base layer, a plurality of convex bodies and a rat-proof object, wherein the convex bodies protrude upwards from the upper surface of the rat-proof base layer, and the rat-proof object is positioned in the convex bodies; the convex bodies extend along the length direction of the ratproof basic layer and are continuously distributed on the ratproof basic layer in a row shape.

Above-mentioned nonmetal protection against rodents optical cable, its characterized in that: the adjacent convex bodies are provided with infiltration bodies which are filled in the gaps between the convex bodies and the gaps between the second protection layer.

Further, the above-mentioned nonmetal rat-proof optical cable is characterized in that: the infiltrant is free standing or is a downwardly extending portion of the second protective layer.

Above-mentioned nonmetal protection against rodents optical cable, its characterized in that: the second protective layer is coated with a third protective layer.

The utility model has the following main beneficial effects: the structure is simpler, the manufacture is easier, the rat-proof effect is better, the product structure is more stable and reliable, and the device is more suitable for torpedo areas, strong current occasions and severe environment occasions.

Drawings

Fig. 1 is a schematic perspective view of a peeled-off section of example 1.

Fig. 2 is an enlarged front view of fig. 1.

Fig. 3 is a schematic perspective view showing a segment of the ratproof part used in example 1 in an original state.

Fig. 4 is an enlarged front view of fig. 3.

Fig. 5 is a schematic cross-sectional view of fig. 3 cut at the convex body.

Fig. 6 is a schematic perspective view showing a segment of the ratproof part used in example 2 in an original state.

Fig. 7 is a schematic perspective view showing a segment of the ratproof part used in example 3 in an original state.

Fig. 8 is a schematic perspective view showing a segment of the ratproof part used in example 4 in an original state.

FIG. 9 is a schematic cross-sectional structure of example 5.

FIG. 10 is a schematic perspective view of a peeled portion of example 6.

Fig. 11 is an enlarged front view of fig. 10.

In the figure: 1-optical fiber, 2-loose tube, 3-first protective layer, 4-inner cushion layer, 5-rat-proof base layer, 6-second protective layer, 7-third protective layer, 51-convex body, 511-rat-proof object and 61-infiltration body.

Detailed Description

Examples 1

Referring to fig. 1 to 5, a non-metal rat-proof optical cable includes a plurality of optical fibers 1, a loose tube 2 covering all the optical fibers 1, a first protection layer 3 outside the loose tube 2, and a second protection layer 6 outside the first protection layer 3, and is characterized in that: an inner cushion layer 4 and a rat-proof component are arranged between the first protective layer 3 and the second protective layer 6, the inner cushion layer 4 is tightly attached to the first protective layer 3, and the rat-proof component is coated outside the inner cushion layer 4; the rat-proof component consists of a rat-proof base layer 5, a plurality of convex bodies 51 and a rat-proof object 511, wherein the convex bodies 51 protrude upwards from the upper surface of the rat-proof base layer 5, and the rat-proof object 511 is positioned in the convex bodies 51; the convex bodies 51 are distributed on the ratproof base layer at intervals in rows along the length direction of the ratproof base layer, the convex bodies 51 in adjacent rows are aligned at adjacent positions, and in the nonmetal ratproof optical cable, the outer surfaces of the convex bodies 51 are attached to the inner surface of the second protective layer 6.

The manufacturing method of the nonmetal rat-proof optical cable comprises the following steps:

the manufacturing method of the loose tube comprises the following steps: putting polypropylene or polyethylene or polybutylene terephthalate in a secondary coating extruding machine to melt and stretch the melted material and drawing to form an original tube, plugging a plurality of colored optical fibers into a machine head of the secondary coating extruding machine and penetrating into the original tube, drawing and cooling the original tube and a plurality of optical fibers inside the original tube together to form a loose tube, and enabling the length of the optical fibers to be larger than that of the loose tube;

manufacturing the inner cushion layer: the method comprises the following steps of enabling a water-blocking tape or a polyester tape or a non-woven fabric or a glass fiber tape to penetrate through a leveling die, then penetrating through an outer conical hole of a sizing pipe die, enabling a loose pipe to penetrate through a central hole of the sizing pipe die, then stretching the water-blocking tape or the polyester tape or the non-woven fabric or the glass fiber tape and the loose pipe together to form a first complex, enabling the first complex to penetrate through a machine head of a first sheath extruding machine, enabling molten glass fiber reinforced plastic to be extruded from the machine head of the first sheath extruding machine and located outside the first complex, drawing and stretching the glass fiber reinforced plastic outside the machine head of the first sheath extruding machine and the first complex together, and continuously cooling in cooling water to form a second complex, and enabling the glass fiber reinforced plastic to form an inner cushion layer outside the first complex;

the method for manufacturing the ratproof component comprises the following steps: melting the glass fiber reinforced plastic in a second sheath extruder, extruding the melted glass fiber reinforced plastic from a machine head, continuously drawing and stretching to form a long strip-shaped ratproof base layer, and spraying the glass fiber reinforced plastic which contains the ratproof object and has the melted outer surface from the upper part of the ratproof base layer in a gap manner before the glass fiber reinforced plastic is not hardened so as to combine the glass fiber reinforced plastic with the upper surface of the ratproof base layer to form a convex body, thereby completing the manufacture of the ratproof component;

manufacturing a second protective layer: and (3) enabling the ratproof component to penetrate through an outer conical hole of a sizing die in front of a third sheath plastic extruding machine, enabling the lower surface of the ratproof base layer to be tightly attached to the inner wall of the outer conical hole of the sizing die, enabling the second composite body to penetrate through a central hole of the sizing die, enabling the second composite body and the ratproof component to penetrate through the central hole of the extruding die of the third sheath plastic extruding machine together, extruding and coating low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyurethane or TPE or TPU or polyvinyl chloride melted in the third sheath plastic extruding machine outside the ratproof component to form a second protective layer, drawing the second protective layer, the second composite body and the ratproof component together, and cooling the ratproof component to complete the manufacture of the nonmetal ratproof optical cable.

EXAMPLES example 2

Referring to fig. 6 and fig. 1 to 5, a non-metallic ratproof optical cable is substantially the same as embodiment 1 except that: the convex bodies 51 of adjacent rows are offset in adjacent positions.

EXAMPLE 3

Referring to fig. 7 and fig. 1 to 5, a non-metal rat-proof optical cable includes a plurality of optical fibers 1, a loose tube 2 covering all the optical fibers 1, a first protection layer 3 outside the loose tube 2, and a second protection layer 6 outside the first protection layer 3, wherein: an inner cushion layer 4 and a rat-proof component are arranged between the first protective layer 3 and the second protective layer 6, the inner cushion layer 4 is tightly attached to the first protective layer 3, and the rat-proof component is coated outside the inner cushion layer 4; the rat-proof component consists of a rat-proof base layer 5, a plurality of convex bodies 51 and a rat-proof object 511, wherein the convex bodies 51 protrude upwards from the upper surface of the rat-proof base layer 5, and the rat-proof object 511 is positioned in the convex bodies 51; the convex bodies 51 extend along the length direction of the ratproof base layer and are continuously distributed on the ratproof base layer in a row shape.

the method for manufacturing the ratproof component comprises the following steps: the continuous long bag with the mouse-proof object inside passes through a cuboid-shaped upper hole of an extrusion die of a second sheath plastic extruding machine, glass fiber reinforced plastics are put into the second sheath plastic extruding machine to be melted and extruded from a machine head, the extrudate and the long bag are continuously drawn and stretched together to form a long strip-shaped mouse-proof base layer and a strip-shaped convex body which is positioned on the upper surface of the mouse-proof base layer and has a certain interval, the long bag is contained in the strip-shaped convex body, the mouse-proof object is contained in the long bag, and the mouse-proof part is manufactured;

EXAMPLE 4

Referring to fig. 8 and fig. 1 to 5, a non-metallic ratproof optical cable is substantially the same as embodiment 3, except that: the convex body 51 and the ratproof base layer have an inclined included angle.

EXAMPLE 5

Referring to fig. 9 and fig. 1 to 5, a non-metal rat-proof optical cable is substantially the same as any of the above embodiments, except that: the penetrating bodies 61 are provided between the adjacent convex bodies 51, and the penetrating bodies 61 fill the gaps between the convex bodies 51 and the gaps between the second protective layer 6.

The penetrating member 61 may be independent, or may be a portion of the second protective layer 6 extending downward.

EXAMPLE 6

Referring to fig. 10 and 11, and fig. 1 to 5, a non-metal rat-proof optical cable is substantially the same as any of the above embodiments, except that: the second protective layer 6 is coated with a third protective layer 7.

The nonmetal rat-proof optical cable is characterized in that the optical fibers can be replaced by optical fiber ribbons or optical fiber ribbon bodies, the optical fiber ribbons are formed by a plurality of layers of laminated optical fiber ribbons, and the optical fiber ribbons are formed by a plurality of optical fibers and bonding layers wrapping the optical fibers; the plurality of optical fibers may also be replaced by a bundle of optical fibers bundled together.

A non-metallic ratproof optical cable as described herein, wherein the optical fiber is a single mode fiber or a multimode fiber.

The nonmetal rat-proof optical cable is characterized in that the loose tube is made of polypropylene or polyethylene or polybutylene terephthalate.

The application provides a nonmetal protection against rodents optical cable, its characterized in that pine sleeve's inside is filled with the oleamen that blocks water or the powder that blocks water or the yarn that blocks water.

The nonmetal rat-proof optical cable is characterized in that the first protective layer is made of a water-blocking tape, a polyester tape, a non-woven fabric, a glass fiber tape or water-blocking yarn; the first protective layer not only plays a role of water resistance, but also plays a role of isolation, so that the loose tube is easier to separate.

The nonmetal rat-proof optical cable is characterized in that the inner cushion layer is made of glass fiber reinforced plastic, and the glass fiber reinforced plastic is internally provided with a plurality of disordered short-section fibers and long-section fibers which have pricking properties, but the fibers are mixed/compounded with plastic, so that people or animals cannot be pricked under normal conditions, but the skin can be pricked when the fibers are bitten, gnawed and nibbled, and the rat-proof optical cable can play a rat-proof role.

The nonmetal rat-proof optical cable is characterized in that the rat-proof base layer, the convex body and the rat object are of an integrated structure.

The nonmetal rat-proof optical cable is characterized in that the rat-proof base layer and the convex bodies are made of glass fiber reinforced plastics.

The nonmetal rat-proof optical cable is characterized in that the material of the second protective layer is low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyurethane or TPE or TPU or polyvinyl chloride.

The nonmetal rat-proof optical cable is characterized in that the third protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyurethane or TPE or TPU or polyvinyl chloride.

The nonmetal rat-proof optical cable is characterized in that the rat-proof object is rat-proof medicinal powder or rat-proof medicament sold in the market, chili powder or lime powder.

The nonmetal rat-proof optical cable is characterized in that the material of the infiltration body is the same as that of the second protective layer or the rat-proof base layer.

The cable is quite suitable for the severe environments such as a torpedo area and a mountain area due to the fact that the cable does not contain metal materials, products with metal steel belts or needles in the prior art are not suitable for the torpedo area, and lightning stroke damage of the cable is quite prone to being caused; after the optical cable is damaged by the rat, the metal steel belt or the metal needle is easy to rot in a long time, and the metal steel belt or the metal needle is more accelerated to rot along with the entering of rainwater; the optical cable in the application does not contain metal, so the optical cable cannot be influenced by thunder and lightning and cannot be rotten, and the service life is longer.

Because the rat-proof part in the application is different from the structure and the manufacturing method of the rat-proof part which is adopted in the prior art and is permeated with capsaicin or pungent taste essence in the sheath, irritant gas and the like can not be emitted in the production process, the health of operation work can not be influenced, and in addition, a spark machine can be normally used in production, and the quality hidden trouble caused by the fact that the spark on-line test of the sheath is not carried out can not be caused.

In this application, the twice protection against rodents of inlayer and protection against rodents part has been adopted, has greatly increased the reliability, and moreover, protection against rodents part itself also has triple protection against rodents function: one is that the base band can prevent mouse, the other is convex body, because it has greater hardness and can block mouse, the mouse can be sucked and stimulated by the convex body itself to cause mouse prevention, the third is that the mouse can prevent mouse, the smell and medicine of mouse can be driven when mouse bites, so compared with the prior art, the mouse-proof performance of the application is more excellent.

In the present application, when the penetrating body 61 and the convex body 51 are made of an integral material, the structure of the product is more complete and round; when the infiltration body 61 and the second protective layer are integrated into a whole, the structure of the product is more stable and reliable; the bending resistance and the torsion resistance are stronger.

In the application, because the convex body is adopted instead of the needle structure, the second protective layer cannot be easily damaged or punctured and cannot easily damage the convex body even if the second protective layer is pressed on the second protective layer during force application, and the needles or the punctures in the prior art are different; therefore, the product structure of the application is more stable and reliable. In the application, the existence of the third protective layer optimizes the corresponding technical effect.

Therefore, the utility model has the following main beneficial effects: the structure is simpler, the manufacture is easier, the rat-proof effect is better, the product structure is more stable and reliable, and the device is more suitable for torpedo areas, strong current occasions and severe environment occasions.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a nonmetal protection against rodents optical cable, has many optic fibre (1), pine sleeve pipe (2) of covering all optic fibre (1), is located first protective layer (3) outside pine sleeve pipe (2), is located second protective layer (6) outside first protective layer (3), its characterized in that: an inner cushion layer (4) and a rat-proof component are arranged between the first protective layer (3) and the second protective layer (6), the inner cushion layer (4) is tightly attached to the first protective layer (3), and the rat-proof component is coated outside the inner cushion layer (4); the rat-proof component consists of a rat-proof base layer (5), a plurality of convex bodies (51) and a rat-proof object (511), wherein the convex bodies (51) protrude upwards from the upper surface of the rat-proof base layer (5), and the rat-proof object (511) is positioned in the convex bodies (51); the convex bodies (51) are distributed on the ratproof base layer at intervals in rows along the length direction of the ratproof base layer, the convex bodies (51) in adjacent rows are aligned at adjacent positions, and in the nonmetal ratproof optical cable, the outer surfaces of the convex bodies (51) are attached to the inner surface of the second protective layer (6).

2. The non-metallic ratproof optical cable according to claim 1, wherein: the convex bodies (51) of adjacent rows are offset in adjacent positions.

3. The utility model provides a nonmetal protection against rodents optical cable, has many optic fibre (1), pine sleeve pipe (2) of covering all optic fibre (1), is located first protective layer (3) outside pine sleeve pipe (2), is located second protective layer (6) outside first protective layer (3), its characterized in that: an inner cushion layer (4) and a rat-proof component are arranged between the first protective layer (3) and the second protective layer (6), the inner cushion layer (4) is tightly attached to the first protective layer (3), and the rat-proof component is coated outside the inner cushion layer (4); the rat-proof component consists of a rat-proof base layer (5), a plurality of convex bodies (51) and a rat-proof object (511), wherein the convex bodies (51) protrude upwards from the upper surface of the rat-proof base layer (5), and the rat-proof object (511) is positioned in the convex bodies (51); the convex bodies (51) extend along the length direction of the ratproof basic layer and are continuously distributed on the ratproof basic layer in a row shape.

4. The non-metallic ratproof optical cable according to claim 3, wherein: the convex body (51) and the ratproof base layer have an inclined included angle.

5. The non-metallic ratproof optical cable according to claim 4, wherein: the adjacent convex bodies (51) are provided with penetrating bodies (61), and the penetrating bodies (61) fill the gaps between the convex bodies (51) and the gaps between the second protective layer (6).

6. The non-metallic ratproof optical cable according to claim 5, wherein: the penetrating body (61) is independent or is a part of the second protective layer (6) extending downwards.

7. The non-metallic ratproof optical cable according to claim 6, wherein: the second protective layer (6) is coated with a third protective layer (7).

8. The non-metallic ratproof optical cable according to claim 7, wherein: the optical fiber is a single mode optical fiber or a multimode optical fiber.

9. The non-metallic ratproof optical cable according to claim 7, wherein: the material of the loose tube is polypropylene or polyethylene or polybutylene terephthalate.

10. The non-metallic ratproof optical cable according to claim 7, wherein: the loose tube is filled with water-blocking ointment or water-blocking powder or water-blocking yarn.