Pipeline reinforced rat-proof rubber-covered wire optical cable

Abstract

The utility model discloses a pipeline reinforced rat-proof rubber-covered wire optical cable, which comprises a first sheath, optical fiber units, a first reinforcing member, a waterproof layer, a second reinforcing member and a second sheath, the first sheath is a butterfly-shaped sheath, a plurality of optical fiber units are arranged at the center of the first sheath, and the second sheath is arranged at the center of the second sheath. The two first reinforcers are respectively arranged at the left end and the right end of the first sheath; the waterproof layer and the second sheath are sequentially arranged at the periphery of the first sheath from inside to outside, and the plurality of second reinforcing members are tightly arranged between the waterproof layer and the second sheath in a surrounding manner; the first reinforcing member and the second reinforcing member are FPR non-metal reinforcing members. According to the utility model, a secondary rat-proof measure is adopted, so that the occurrence of rat bite is greatly reduced, the service life of the product is prolonged, and the stability of the product in indoor and outdoor data transmission is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical cables, in particular to a pipeline-reinforced rat-proof leather-wire optical cable. Background Art

[0002] The leather-line optical cable is a new type of user access optical cable. Its cross-section is 8-shaped, with the reinforcement located in the center of the two circles. The reinforcement can be made of metal or non-metallic structure. The optical fiber is located in the geometric center of the 8 shape. It plays a unique role in the establishment of smart buildings, digital communities, campus networks, local area networks and other networks. It combines the characteristics of indoor soft optical cables and self-supporting optical cables, and is suitable for entering households in buildings by pipes or open wires.

[0003] When laying sheathed optical cables outdoors, especially when laying them in pipes, rats often bite them due to the special smell of the outer sheath of the optical cable, resulting in damage to the communication signal. On the market, rat-proof optical cables generally have a metal steel belt wrapped longitudinally between the optical fiber and the outer sheath to enhance the mechanical strength of the optical cable, but this will increase the overall weight of the optical cable and increase the construction cost; or a layer of glass fiber yarn is added between the optical fiber and the outer sheath. After being bitten by rodents, the glass fiber yarn will irritate the rodent's mouth, but when the glass fiber yarn is used for a long time in a workshop, especially in a closed workshop with poor air circulation, its fine fibers are easily inhaled by people, causing respiratory damage.

[0004] Therefore, developing a kind of leather-line optical cable that can prevent rats from biting is a powerful guarantee for improving product performance. In view of this, the inventor has studied and designed a pipeline-reinforced rat-proof leather-line optical cable. Utility Model Content

[0005] The utility model aims to provide a pipeline reinforced rat-proof leather line optical cable, which achieves the purpose of preventing rat bites through secondary rat-proof measures, so as to extend the service life of the product and improve the stability of data transmission of the product indoors and outdoors.

[0006] The utility model provides a pipeline reinforced rat-proof leather line optical cable, comprising a first sheath, an optical fiber unit, a first reinforcement member, a water-blocking layer, a second reinforcement member and a second sheath, wherein the first sheath is a butterfly sheath, a plurality of optical fiber units are arranged at the center of the first sheath, and two first reinforcement members are respectively arranged at the left and right ends of the first sheath; the water-blocking layer and the second sheath are arranged in sequence on the periphery of the first sheath from the inside to the outside, and a plurality of second reinforcement members are closely surrounded and arranged between the water-blocking layer and the second sheath; the first reinforcement member and the second reinforcement member are FPR non-metal reinforcement members.

[0007] According to at least one embodiment of the utility model, air chambers are distributed inside the second sheath, the air chambers are filled with gas, and microcapsules containing rodent repellent are arranged in the air chambers.

[0008] According to at least one embodiment of the utility model, the water-blocking layer is one or more layers of polyester nonwoven fabric composite polymer absorbent resin layer. The utility model can set one or more water-blocking layers according to the specific conditions of the laying environment to provide waterproof protection of different strength levels.

[0009] According to at least one embodiment of the present utility model, the number of the optical fiber units is 2-6.

[0010] According to at least one embodiment of the present utility model, the optical cable further comprises a cable opening rope, and the cable opening rope is arranged between the second sheath and the water blocking layer.

[0011] According to at least one embodiment of the utility model, the number of the second reinforcement members is 8 to 15. For the same size of optical cable, the more the number of the second reinforcement members, the smaller the gap between the second reinforcement members and the second sheath, the higher the roundness of the outer second sheath, and the greater the difficulty of production and manufacturing, so 10 to 12 are preferred.

[0012] According to at least one embodiment of the present invention, the center of the reinforcement is a hollow structure. The reinforcement of the present invention adopts a hollow structure, which not only further reduces its own weight, but also provides sufficient strength.

[0013] According to at least one embodiment of the present invention, V-shaped grooves are provided on the upper and lower sides of the waist of the first sheath. The present invention adopts the V-shaped groove structure to facilitate stripping of the butterfly optical cable.

[0014] According to at least one embodiment of the present invention, the outer diameter of the pipeline-reinforced rat-proof leather line optical cable of the present invention is 6.5-7.5 cm, preferably 7.0 cm.

[0015] The utility model also provides a method for preparing a pipeline-reinforced rat-proof leather line optical cable, comprising the following steps:

[0016] S1, pulling the first reinforcement unit and the optical fiber unit, combining multiple units into a cable, and obtaining a first layer of cables;

[0017] S2, setting an inner sheath extrusion die, extruding a first sheath, and extruding an inner sheath on the outer periphery of the first layer of cables to obtain a second layer of cables;

[0018] S3, pulling the second reinforcement unit, the second layer cable, and the water blocking unit, combining multiple units into a cable to obtain a third layer cable;

[0019] S4, setting an outer sheath extrusion die, arranging an airway in the outer sheath extrusion die and introducing airflow; controlling the airflow rate, introducing rodent-proofing agent microcapsules into the airway, extruding the second sheath, and extruding an outer sheath containing an air cavity around the third layer cable, wherein the air cavity contains rodent-proofing agent microcapsules, to obtain a pipeline-reinforced rodent-proofing cable.

[0020] According to at least one embodiment of the present utility model, the preparation method of the rodent-proofing agent microcapsules comprises: using chitosan as a coating material, dissolving the rodent-proofing agent in an emulsifier such as sodium dodecylbenzene sulfonate to form a coating, dropping the coating into a 30-50° C. aqueous coating material solution to form a primary capsule, and then using a cross-linking agent such as glutaraldehyde to harden the shell of the primary capsule, and drying to obtain rodent-proofing agent microcapsules.

[0021] The pipeline-reinforced rat-proof leather-line optical cable prepared by the utility model has the following beneficial effects:

[0022] 1. The second reinforcement member of the utility model is a FPR non-metal reinforcement member and is closely arranged on the periphery of the optical fiber unit. When a rat bite occurs, no matter which direction the rat bites, the glass fiber contained in the FPR non-metal reinforcement member can effectively stimulate the mouth of the rodent, thereby protecting the optical fiber unit in all directions.

[0023] 2. The utility model adopts the air blowing process, so that the second sheath is distributed with air chambers, and rat-proofing agents are arranged in the air chambers, which can also greatly reduce the occurrence of rat bites.

[0024] 3. The utility model fills the air chamber with gas, which can prevent the second sheath from sinking from the outside to the inside and causing collapse in the place where the air chamber is located during the production of the coiled product or during the construction process.

[0025] 4. The outer diameter of the optical cable of the utility model is 6.5-7.5cm. Compared with the traditional optical cable, the outer diameter is smaller, which effectively reduces the contact area with the outside world. Non-metallic materials are used, so the weight is lighter and it is more convenient for on-site construction, especially suitable for pipeline construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description. These drawings are included to provide a further understanding of the present invention, and the drawings are included in and constitute a part of this specification.

[0027] Figure 1 The utility model is a structural schematic diagram of a pipeline-reinforced rat-proof leather line optical cable. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and implementations. It is to be understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] like Figure 1 As shown, the utility model discloses a pipeline reinforced anti-rat leather cable, comprising a first sheath 1, an optical fiber unit 2, a first reinforcement member 3, a water blocking layer 4, a second reinforcement member 5 and a second sheath 6. The first sheath 1 is a butterfly sheath, a number of optical fiber units 2 are arranged at the center of the first sheath 1, and the optical fiber unit is a colored optical fiber. Preferably, the number of optical fiber units is 2-6, and two first reinforcement members 3 are respectively arranged at the left and right ends of the first sheath 1; the water blocking layer 4 adopts a polyester non-woven fabric composite polymer absorbent resin layer, and the water blocking layer 4 and the second sheath 6 are sequentially arranged on the periphery of the first sheath 1 from the inside to the outside, and a number of second reinforcement members 5, preferably 10-12, are tightly surrounded and arranged between the water blocking layer 4 and the second sheath 6; the first reinforcement member 3 and the second reinforcement member 5 are FPR non-metallic reinforcement members. The first sheath 1 and the second sheath 6 adopt LSZH low-smoke halogen-free sheath, which can play a good flame retardant role.

[0031] The FPR non-metallic reinforcement member adopted in the utility model can reduce the overall weight of the optical cable and reduce the laying cost while strengthening the strength of the optical cable compared to metal reinforcement members such as steel wire. On the other hand, the second reinforcement member arranged around the optical fiber unit also plays a role in protecting the optical fiber unit. When a rat bite occurs, the second sheath is first bitten, and then the second reinforcement member is bound to be bitten from any direction. Since the second reinforcement member is an FPR non-metallic reinforcement member, it is a composite material prepared by a pultrusion process with resin as a matrix material and glass fiber as a reinforcing material, which are mixed in proportion. The glass fiber contained in the FPR component can also stimulate the oral cavity of the rodent when bitten by a rat, thereby achieving the purpose of preventing rat bites. Compared with the traditional glass fiber yarn rodent prevention measures, the second reinforcement member adopted in the utility model can not only stimulate the oral cavity of rodents, but also has the following beneficial effects: 1. It strengthens the strength of the optical cable, reduces the overall weight of the optical cable, and reduces the laying cost; 2. It overcomes the shortcomings of glass fiber yarn, and does not produce fine glass fibers during the production and preparation of optical cables. Therefore, it is not easy to be inhaled by the human body, creating a good air working environment for production workers.

[0032] According to at least one embodiment of the utility model, an air chamber 61 is distributed inside the second sheath 6, and the air chamber is filled with gas, and a microcapsule containing a rodent-proofing agent is arranged in the air chamber 61. The second sheath 6 is used as an outer sheath, and when a rat bites, it is the first place to be bitten by the rat. After the microcapsules located in the air chamber are bitten by the rat, they have a medicinal effect on rodents, thereby preventing rat bites. The bubble structure distributed in the second sheath 6 of the utility model not only provides a microenvironment for the rodent-proofing agent, but also effectively reduces the overall weight of the optical cable. In order to avoid the spread of the smell of the rodent-proofing agent in the workshop, the utility model adopts microcapsule technology to wrap and seal the rodent-proofing agent in advance, which can also protect the workers well. The air chamber is filled with gas, which can provide air pressure for the air chamber, and can also ensure the overall roundness of the optical cable, preventing the second sheath from being sunken from the outside to the inside in the place where there is an air chamber, causing collapse when producing the coiled finished product or during the construction process.

[0033] According to at least one embodiment of the utility model, the optical cable further comprises a cable opening rope 7, which is arranged between the second sheath 6 and the water blocking layer 4. The cable opening rope provided in the utility model can make it faster and easier for operators to peel off the optical cable of the utility model.

[0034] According to at least one embodiment of the present invention, the center of the reinforcement is a hollow structure. The reinforcement of the present invention adopts a hollow structure, which not only further reduces its own weight, but also provides sufficient strength.

[0035] According to at least one embodiment of the present invention, V-shaped grooves 11 are provided on the upper and lower sides of the waist of the first sheath 1. The present invention adopts a V-shaped groove structure to facilitate stripping of the butterfly optical cable.

[0036] The utility model also discloses a method for preparing a pipeline-reinforced rat-proof leather-wire optical cable, comprising the following steps:

[0037] S1, pulling the first reinforcement unit and the optical fiber unit, combining multiple units into a cable, and obtaining a first layer of cables;

[0038] S2, setting an inner sheath extrusion die, extruding a first sheath, and extruding an inner sheath on the outer periphery of the first layer of cables to obtain a second layer of cables;

[0039] S3, pulling the second reinforcement unit, the second layer cable, and the water blocking unit, combining multiple units into a cable to obtain a third layer cable;

[0040] S4, setting an outer sheath extrusion die, arranging an airway in the outer sheath extrusion die and introducing airflow; controlling the airflow rate, preferably, controlling the air pressure at 2-6 bar, introducing rodent-proofing agent microcapsules into the airway, extruding the second sheath, and extruding an outer sheath containing an air cavity around the third layer of cable, wherein the air cavity contains rodent-proofing agent microcapsules, to obtain a pipeline-reinforced rodent-proofing cable.

[0041] According to at least one embodiment of the present invention, the air chamber is filled with gas to form a certain air pressure on the side wall of the air chamber to prevent the second sheath from collapsing. Preferably, the filling gas can be air, or an inert gas such as nitrogen.

[0042] According to at least one embodiment of the utility model, the preparation method of the rodent-proofing agent microcapsule comprises: using chitosan as a coating material, dissolving the rodent-proofing agent in an emulsifier such as sodium dodecylbenzene sulfonate to form a coating, dropping the coating into a 30-50° C. coating material aqueous solution to form a primary capsule, and then using a cross-linking agent such as glutaraldehyde to harden the shell of the primary capsule, and drying to obtain a rodent-proofing agent microcapsule. The rodent-proofing agent is a commercially available rodent-proofing agent, for example, a rodent-proofing agent containing one or more ingredients of bitter element, terpenoid compound monomer, sodium diphacin, and capsaicin.

[0043] When the optical cable is actually laid, it is laid in a pipeline, which can be an outdoor pipeline or an indoor pipeline. When the optical fiber equipment needs to be connected, the second sheath is torn off by using the cable to connect the optical fiber unit to the optical fiber equipment. The optical cable of the utility model can be used in harsh environments, such as dark pipelines, mines, tunnels, buried underground, and power cable troughs. The outer diameter of the optical cable of the utility model is 6.5-7.5cm, preferably 7.0cm. Compared with the outer diameter of the normal outdoor optical cable of 9.8cm, the outer diameter of the utility model is smaller, the contact area is reduced, and non-metallic materials are used, so the weight is lighter, which is convenient for on-site construction, especially suitable for pipeline construction occasions. When a rat bite occurs, the rat-proofing agent contained in the outer sheath (second sheath) can exert its efficacy after being bitten by rodents, achieving the first-level rat-proofing effect; if the outer sheath continues to be bitten, the second reinforcement member will be exposed. The tightly packed second reinforcement member is arranged around the outer periphery of the optical fiber unit, so no matter which direction the bite is made, the second reinforcement member will be bitten first. The second reinforcement member is made of a material containing glass fiber, which can stimulate the oral cavity of the rodent, achieving the second-level rat-proofing effect. Therefore, the utility model can greatly reduce the occurrence of rat bites damaging communication optical cables through the second-level rat-proofing measures.

[0044] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A pipeline reinforced rat-proof leather line optical cable, characterized in that: The invention comprises a first sheath, an optical fiber unit, a first reinforcement member, a water-blocking layer, a second reinforcement member and a second sheath, wherein the first sheath is a butterfly-shaped sheath, a plurality of optical fiber units are arranged at the center of the first sheath, and two first reinforcement members are arranged at the left and right ends of the first sheath respectively; the water-blocking layer and the second sheath are arranged on the periphery of the first sheath in sequence from the inside to the outside, and a plurality of second reinforcement members are closely surrounded and arranged between the water-blocking layer and the second sheath; the first reinforcement member and the second reinforcement member are FPR non-metal reinforcement members.

2. The pipeline reinforced rat-proof leather wire optical cable according to claim 1, characterized in that: An air chamber is distributed inside the second sheath, the air chamber is filled with gas, and microcapsules containing rodent-proofing agents are arranged in the air chamber.

3. The pipeline reinforced rat-proof leather cable as claimed in claim 1, characterized in that: The water-blocking layer is one or more layers of polyester non-woven fabric composite polymer absorbent resin layer.

4. The pipeline reinforced rat-proof leather cable as claimed in claim 1, characterized in that: The number of the optical fiber units is 2-6.

5. The pipeline reinforced rat-proof leather wire optical cable according to claim 1, characterized in that: The optical cable further comprises an open cable, wherein the open cable is arranged between the second sheath and the water blocking layer.

6. The pipeline reinforced rat-proof leather wire optical cable according to claim 1, characterized in that: The number of the second reinforcement members is 8-15.

7. The pipeline reinforced rat-proof leather wire optical cable according to claim 1, characterized in that: The center of the reinforcement is a hollow structure.

8. The pipeline reinforced rat-proof leather wire optical cable according to claim 1, characterized in that: V-shaped grooves are provided on the upper and lower sides of the waist of the first sheath.

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