All-dielectric rodent-resistant hybrid optical cable

Abstract

The utility model belongs to the optical cable technical field discloses a full dielectric rat -proof special-shaped optical cable, contains the thimble (2), the outer sheath (5), and the thimble (2) has multiple optical fibers (1) inside, its characterized in that: the thimble (2) is sealed and covered with special-shaped component (3) outside, the special-shaped component (3) is sealed and covered with the outer rat -proof layer (4) outside, and the outer sheath (5) is covered outside the outer rat -proof layer (4). The present application has the following main beneficial technical effects: simple structure, easy to manufacture, low cost, better rat -proof effect, and can effectively prevent lightning.

Description

Technical Field

[0001] This utility model belongs to the field of optical cable technology, and in particular relates to a special-shaped optical cable with all-dielectric rodent protection. Background Technology

[0002] As global temperatures rise and summer days become more frequent, the probability of thunderstorms increases significantly, leading to a growing demand for all-dielectric lightning-protected optical cables. However, while all-dielectric optical cables offer lightning protection, they contain no metal and are susceptible to damage from rodents.

[0003] CN211554406U discloses a non-metallic armored rodent- and termite-proof optical cable, comprising a cable core and an outer sheath. The cable core is a stranded core, covered with a nylon sheath. A non-metallic reinforcing rod layer is armored outside the nylon sheath, and a water-blocking layer is provided outside the non-metallic reinforcing rod layer, which is then covered by the outer sheath. Through the armored non-metallic reinforcing rod layer and multi-layered structure, it effectively resists rodent gnawing and also improves the tensile and compressive strength of the optical cable. The presence of the nylon sheath effectively prevents termite and ant infestation, providing better protection for the optical cable and improving its utilization efficiency. However, its rodent-proofing through the non-metallic reinforcing rod layer has several drawbacks: firstly, it is complex to manufacture, resulting in a low yield rate; secondly, the non-metallic reinforcing rod is prone to breakage; and thirdly, its rodent-proofing performance needs further improvement.

[0004] CN110727071A discloses a full-dielectric central loose tube type rodent-proof, termite-proof, and lightning-proof optical cable, comprising, from the outside to the inside, an outer sheath with a circular cross-section, a middle sheath, a glass fiber tape layer, an inner sheath, a glass fiber yarn layer, and a loose tube. Optical fibers are arranged inside the loose tube, and the space between the optical fibers and the inner wall of the loose tube is filled with fiber grease. Glass fiber yarn is wrapped around the outer periphery of the loose tube to form a glass fiber yarn layer, and glass fiber tape is wrapped around the outer periphery of the inner sheath to form a glass fiber tape layer. It prevents rodents through the glass fiber yarn and glass fiber tape layers. However, the wrapped glass fiber yarn layer is easily deformed under conditions of twisting and repeated bending; the glass fiber yarn is also easily deformed under conditions of twisting and repeated bending, mainly exhibiting aggregation. Originally dispersed around the sheath or cable core, it clumps together after deformation, losing its uniform protective performance.

[0005] Therefore, the rodent-proof performance and reliability of existing optical cables need to be improved. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this utility model is to disclose a non-linear optical cable with all-dielectric rodent protection, which is achieved using the following technical solution.

[0007] A rodent-proof optical cable with all dielectrics includes a loose tube and an outer sheath. The loose tube contains multiple optical fibers. The loose tube is sealed with a shaped component, which is then sealed with an outer rodent-proof layer. The outer sheath covers the outer rodent-proof layer.

[0008] The aforementioned all-dielectric rodent-proof irregular optical cable has an irregular component consisting of a baseband and protrusions. The protrusions protrude from the upper surface of the baseband, and grooves are formed between adjacent protrusions.

[0009] In the aforementioned all-dielectric rodent-proof irregular optical cable, the tips of all the protrusions are in the same plane.

[0010] The aforementioned all-dielectric rodent-proof irregular optical cable has its baseband's lower surface tightly attached to the outer edge of the loose tube.

[0011] The aforementioned all-dielectric rodent-proof irregular optical cable has grooves filled with rodent-proof material.

[0012] The aforementioned all-dielectric rodent-proof irregular optical cable has two irregular components that are interlocked with each other. The protrusion of the first irregular component is embedded in the groove of the second irregular component, and the protrusion of the second irregular component is embedded in the groove of the first irregular component.

[0013] Furthermore, in the aforementioned all-dielectric rodent-proof irregular optical cable, in the two irregular components, the lower surface of the baseband of the first irregular component is tightly attached to the outer edge of the loose tube; the lower surface of the baseband of the second irregular component is tightly attached to the inner wall of the outer rodent-proof layer.

[0014] Furthermore, in the aforementioned all-dielectric rodent-proof irregular optical cable, the groove is filled with adhesive to bond the two irregular components together.

[0015] The aforementioned all-dielectric rodent-proof special-shaped optical cable has a rodent-proof mesh inside the baseband. The rodent-proof mesh is distributed throughout the width of the baseband, but does not extend to the upper surface of the baseband in the height direction. The rodent-proof mesh extends continuously or intermittently along the length of the baseband.

[0016] As a further improvement, two second irregular components will be adopted. The second irregular component is improved as follows: the irregular component consists of a base band and two rodent-proof meshes. The two rodent-proof meshes are located inside the base band and are distributed without contacting each other. The two rodent-proof meshes are close to the upper and lower surfaces of the base band, respectively. The upper surface of the base band is in close contact with the outer surface of the loose sleeve, and the lower surface of the base band is in close contact with the inner wall of the outer rodent-proof layer.

[0017] This application has the following main beneficial technical effects: simple structure, easy to manufacture, low cost, better rodent prevention effect, and effective lightning protection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cross-sectional structure for implementing Example 1.

[0019] Figure 2 for Figure 1 A three-dimensional structural diagram of a section of the irregularly shaped component used in the study.

[0020] Figure 3 for Figure 2 Enlarged cross-sectional structural diagram.

[0021] Figure 4 For two Figure 2 A schematic diagram of the assembly of irregularly shaped components.

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the irregular component used in Implementation Example 2. Detailed Implementation

[0023] To enable those skilled in the art to better understand and implement this patent, the markings in the accompanying drawings are explained in detail below.

[0024] In the diagram: 1—optical fiber, 2—loose tube, 3—irregular component, 4—outer rodent-proof layer, 5—outer sheath, 31—baseband, 32—protrusion, 30—groove, 33—rodent-proof mesh.

[0025] Implementation Example 1: Please see Figures 1 to 4 A type of all-medium rodent-proof irregular optical cable includes a loose tube 2 and an outer sheath 5, with multiple optical fibers 1 inside the loose tube 2; characterized in that: the loose tube 2 is sealed with an irregular component 3, the irregular component 3 is sealed with an outer rodent-proof layer 4, and the outer sheath 5 covers the outer rodent-proof layer 4.

[0026] The above-mentioned all-dielectric rodent-proof irregular optical cable is characterized in that: the irregular component 3 is composed of a baseband 31 and protrusions 32, the protrusions 32 protrude from the upper surface of the baseband 31, and a groove 30 is formed between adjacent protrusions 32.

[0027] The aforementioned all-dielectric rodent-proof irregular optical cable is characterized in that the top ends of all the protrusions 32 are in the same plane.

[0028] The aforementioned all-dielectric rodent-proof irregular optical cable is characterized in that: the lower surface of the baseband 31 is tightly attached to the outer edge of the loose tube.

[0029] The aforementioned all-dielectric rodent-proof irregular optical cable is characterized in that: the groove 30 is filled with rodent-proof material.

[0030] The above-described all-medium rodent-proof irregular optical cable is characterized in that it has two irregular components 3, which are interlocked with each other. The protrusion 32 of the first irregular component 3 is embedded in the groove 30 of the second irregular component 3, and the protrusion 32 of the second irregular component 3 is embedded in the groove 30 of the first irregular component 3.

[0031] Furthermore, the aforementioned all-dielectric rodent-proof irregular optical cable is characterized in that: in the two irregular components 3, the lower surface of the baseband 31 of the first irregular component 3 is in close contact with the outer edge of the loose tube; the lower surface of the baseband 31 of the second irregular component 3 is in close contact with the inner wall of the outer rodent-proof layer 4.

[0032] Furthermore, the aforementioned all-dielectric rodent-proof irregular optical cable is characterized in that: the groove 30 is filled with adhesive to bond the two irregular components 3 together.

[0033] Implementation Example 2: Please see Figure 5 and refer to Figures 1 to 4 A type of all-dielectric rodent-proof special-shaped optical cable, basic implementation example 1, differs in that: the baseband 31 has a rodent-proof mesh 33 inside, the rodent-proof mesh 33 is distributed in the entire width direction of the baseband 31, the rodent-proof mesh 33 does not extend to the upper surface of the baseband 31 in the height direction, and the rodent-proof mesh 33 extends continuously or intermittently along the length direction of the baseband 31.

[0034] The rodent-proof mesh 33 is distributed along most of the width of the baseband 31.

[0035] During production, the irregular part 3 is longitudinally wrapped around the outside of the sleeve. The two ends of the irregular part 3 are attached and bonded together, and adhesive or other bonding materials are used at the joint. There is no overlap or overlap in the longitudinal wrapping.

[0036] As a further improvement, instead of using two second irregular components 3, one second irregular component 3 can be used. The second irregular component 3 is improved as follows: the irregular component 3 consists of a base band 31 and two rodent-proof nets 33. The two rodent-proof nets 33 are located inside the base band 31 and are distributed without contacting each other. The two rodent-proof nets 33 are respectively close to the upper surface and the lower surface of the base band 31. The upper surface of the base band 31 is in close contact with the outer surface of the loose sleeve, and the lower surface of the base band 31 is in close contact with the inner wall of the outer rodent-proof layer 4.

[0037] The all-dielectric rodent-proof irregular optical cable described in this application is characterized in that: the optical fiber 1 is of type G.652 or G.653 or G.654 or G.655 or G.656 or G.657 or A1a or A1b or A1c or A1d; or has at least two of the above types; different types are distinguished by different coloring layers on the surface of the optical fiber, and the same type can also be distinguished by different coloring layers on the surface of the optical fiber.

[0038] The all-dielectric rodent-proof irregular optical cable described in this application is characterized in that: the loose tube 2 is made of polybutylene terephthalate or modified polypropylene.

[0039] The all-dielectric rodent-proof irregular optical cable described in this application is characterized in that: the irregular component 3 is an integral structure.

[0040] The all-dielectric rodent-proof irregular optical cable described in this application is characterized in that: the outer rodent-proof layer 4 is made of silicone, and the silicone contains a spicy substance such as chili powder.

[0041] The all-dielectric rodent-proof irregular optical cable described in this application is characterized in that: the outer sheath 5 is made of plastic.

[0042] The all-dielectric rodent-proof irregular optical cable described in this application is characterized in that: the baseband 31 and the protrusions 32 are integrally extruded and the material is glass fiber reinforced plastic.

[0043] The rodent-proof optical cable described in this application is characterized in that the rodent-proof mesh 33 is made of glass fiber reinforced plastic.

[0044] The non-standard optical cable with all-medium rodent protection described in this application is not limited to the serrated shape shown in the figure for the non-standard component 3. The actual protrusions 32 and grooves 30 can be rectangular or other matching shapes.

[0045] In this application, after the irregularly shaped component 3 is covered, it is stretched through a box containing molten rodent-proof silicone, and the outer diameter is initially shaped by a glue-scraping mold. The outer diameter is further stabilized by drying and cooling, and then an outer sheath is extruded on the outside to finally form a cable.

[0046] In this application, when there is only one layer of serrated irregular part, the outer groove 30 is filled with rodent-proof material and continuously wrapped with straps when the formed part is covered; of course, rodent-proof material and straps may not be filled, and when stretched through the box with melted rodent-proof silicone inside, the rodent-proof silicone is filled in the groove 30.

[0047] The rodent-proof optical cable described in this application is characterized in that the rodent-proof material is glass powder.

[0048] In this application, when the two irregular parts 3, the protrusions 32 and the grooves 30, can all be rectangular or the same shape, the two irregular parts 3 can have different heights, but the width of the protrusions 32 and the depth of the grooves 30 must match. The lengths of the protrusions 32 can be different. When they are assembled, a gap is formed between the two irregular parts 3 due to the different lengths of the protrusions 32. The gap can be filled with filler or rodent-proof material to fill the space. The height of the base strip can also be different. In this way, it can be applied to occasions with different rodent-proof strength requirements.

[0049] In this application, the outer rodent-proof layer has high hardness, a pungent odor, and extremely strong drying properties. Its hardness makes it difficult for rodents to bite, its odor prevents rodents from biting, and its dryness makes rodents' mouths dry so they don't bite. The pointed ends of the protrusions are piercing, preventing rodents from biting. The base and protrusion materials are also piercing, preventing rodents from biting. The rodent-proof material is dry, indigestible, and piercing, preventing rodents from biting. The spun yarn in the rodent-proof net has extremely high strength, making it impossible for rodents to bite, and the net's entanglement properties trap them, preventing them from continuing to bite.

[0050] In this application, the rodent-proof mesh has holes. When the mesh is distributed in the base belt, the material of the base belt effectively fixes the rodent-proof mesh. Therefore, it is not easily deformed under conditions such as torsion and repeated bending, thus greatly improving the rodent-proof performance and reliability.

[0051] This application has the following main beneficial technical effects: simple structure, easy to manufacture, low cost, better rodent prevention effect, and effective lightning protection.

[0052] This application can be used as a smart sensor or smart sensing element; since it can transmit voice and images, it can also be used as a physical sensor, such as a voice sensor or an image sensor; since it transmits light signals through the principle of total internal reflection, it can also be used as a distance sensor; the optical fiber in this application is itself an optical waveguide, so it can be used as an optical waveguide, such as an arrayed optical waveguide or a diffractive optical waveguide; this application can also be used in the field of optical computing, as part of optical chip computing, optical computing, optical network computing, and optical computing.

[0053] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A non-linear optical cable with all-dielectric rodent protection, comprising a loose tube (2) and an outer sheath (5), wherein the loose tube (2) contains multiple optical fibers (1); characterized in that: The loose sleeve (2) is covered with a special-shaped component (3), the special-shaped component (3) is covered with an outer rodent-proof layer (4), and the outer sheath (5) is covered outside the outer rodent-proof layer (4).

2. The all-dielectric rodent-proof irregular-shaped optical cable according to claim 1, characterized in that: The irregular component (3) is composed of a base strip (31) and protrusions (32). The protrusions (32) protrude from the upper surface of the base strip (31), and grooves (30) are formed between adjacent protrusions (32).

3. The all-dielectric rodent-proof irregular-shaped optical cable according to claim 2, characterized in that: The tips of all the protrusions (32) are in the same plane.

4. The all-dielectric rodent-proof irregular-shaped optical cable according to claim 2, characterized in that: The lower surface of the baseband (31) is in close contact with the outer edge of the loose sleeve.

5. The all-dielectric rodent-proof irregular-shaped optical cable according to claim 2, characterized in that: The groove (30) is filled with rodent-proof material.

6. The all-dielectric rodent-proof irregular-shaped optical cable according to claim 2, characterized in that: It has two irregular parts (3), the two irregular parts (3) are fastened to each other, the protrusion (32) of the first irregular part (3) is embedded in the groove (30) of the second irregular part (3), and the protrusion (32) of the second irregular part (3) is embedded in the groove (30) of the first irregular part (3).

7. The all-dielectric rodent-proof irregular-shaped optical cable according to claim 6, characterized in that: In the two irregular parts (3), the lower surface of the base strip (31) of the first irregular part (3) is in close contact with the outer edge of the loose sleeve; the lower surface of the base strip (31) of the second irregular part (3) is in close contact with the inner wall of the outer rodent-proof layer (4).

8. The all-dielectric rodent-proof irregular-shaped optical cable according to claim 7, characterized in that: The groove (30) is filled with adhesive to bond the two irregular parts (3) together.

9. A rodent-proof, all-dielectric optical cable according to any one of claims 1 to 8, characterized in that: The baseband (31) has a rodent-proof mesh (33) inside.

10. A rodent-proof optical cable with all dielectrics according to claim 1, characterized in that: The irregular component (3) consists of a base band (31) and two rodent-proof nets (33). The two rodent-proof nets (33) are located inside the base band (31) and are distributed without contacting each other. The two rodent-proof nets (33) are close to the upper and lower surfaces of the base band (31), respectively. The upper surface of the base band (31) is in close contact with the outer surface of the loose sleeve, and the lower surface of the base band (31) is in close contact with the inner wall of the outer rodent-proof layer (4).

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