A new type of central rat-proof optical cable

Abstract

The utility model relates to a new type of central anti-rat-bite optical cable, which is an optical cable composed of optical fiber, water-blocking fiber paste, stainless steel casing, polyethylene sheath material, metal braided mesh, glass yarn, and silicone sheath. The new type of central anti-rat-bite optical cable, the outermost layer of the optical cable is made of special-shaped silicone material, because its material is soft and elastic, rats cannot achieve the purpose of grinding teeth by biting, and the probability of biting is objectively avoided, which is the first level of protection; if the rodent continues to bite, it will bite through the glass yarn layer and the metal braided layer. The glass fiber is extremely fine and brittle, and the metal steel wire braid is thin and hard. During the biting process of the rodent, it will seriously damage the rat's mouth, thereby preventing it from continuing to bite, which is the second level of protection; if the rodent still continues to bite, because its center is a stainless steel casing, it not only increases the compressive strength of the optical cable, but also ensures that the rodent cannot bite the optical fiber inside it due to its high strength and hardness, which is the third level of protection. The three-layer protection effectively avoids damage to the optical cable.

Description

Technical Field

[0001] The utility model relates to a novel central rat-proof optical cable, which is composed of optical fiber, water-blocking fiber paste, stainless steel casing, polyethylene sheath material, metal braided net, glass yarn and silicone sheath. Background Art

[0002] Rat is a general term for rodents of the family Muridae. Its burrow system is complex, with many long branches. It is most active at night. Rats are omnivorous and often steal crops. They reproduce 6-10 times a year, with 5-14 pups or more per litter.

[0003] Optical cable lines in mountainous and hilly areas are often damaged by rodents, especially in the hilly and mountainous areas of the southwest, which brings great trouble to communication security and maintenance. In order to improve the anti-bite effect of optical cables, for ecological protection and economic factors, it is not appropriate to take measures such as poisoning and killing for optical cable lines, nor is it appropriate to take deep burial for prevention like direct buried optical cables. At present, most anti-rodent optical cables have anti-rodent agents added to the protective outer layer, so that when the outer layer of the optical cable is bitten by mice, it can release irritating odors to stimulate the outer layer, which has the effect of driving away mice. However, when the outer layer of the optical cable is damaged by biting, the release speed of the irritating odor is also accelerated, which greatly reduces the anti-rodent bite effect of the optical cable. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide a central rat-proof optical cable, which solves the problems raised in the above-mentioned background technology by means of three-layer protection.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of central rat-proof optical cable, the stainless steel casing is placed in the center of the optical cable structure, the optical fiber is placed inside the steel tube and filled with water-blocking fiber paste material, a layer of polyethylene inner sheath material is extruded outside the central tube, the inner sheath is covered with woven steel wire mesh and glass yarn, and the outermost layer is a silicone sheath material. Silicone is also called silicone rubber and silica gel. Silicone is a highly active adsorption material and an amorphous material, not a plastic. The materials used in the production process of silicone are relatively superior, but the cost is lower than that of plastic.

[0008] Preferably, the stainless steel casing can hold up to 96 optical fibers, and the larger space allows more optical fibers to be placed inside, thereby protecting more optical fibers from damage and making it difficult for mice to gnaw through the optical fibers.

[0009] Preferably, the inner sheath is a polyethylene inner sheath, which is a thermoplastic resin obtained by polymerization of ethylene monomers. Polyethylene is odorless, non-toxic, feels like wax, has excellent low-temperature resistance (the lowest operating temperature can reach -100 to -70°C), and has good chemical stability. Because the polymer molecules are connected by carbon-carbon single bonds, they can withstand corrosion from most acids and alkalis (not resistant to oxidizing acids).

[0010] Preferably, the metal woven mesh is a staggered 0.1-0.3 mm steel wire. The metal woven mesh can more effectively isolate the internal facilities from the outside and is not easily damaged by mice. Damaging the fine metal woven mesh can also cause great damage to the mouse's mouth, making it unable to continue chewing, thereby more effectively protecting the internal facilities.

[0011] Preferably, the glass yarn is glass fiber, which is an inorganic non-metallic material with excellent performance and a wide variety. Its advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but its disadvantages are brittleness and poor wear resistance. It is made of six kinds of minerals, namely talc, quartz sand, limestone, dolomite, colemanite and boraxite, through high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its single filament is several microns to more than twenty microns, which is equivalent to 1 / 20-1 / 5 of a hair. Each bundle of fiber filaments is composed of hundreds or even thousands of single filaments. Glass fiber is relatively brittle, and it is very prickly in the mouth of mice when it is bitten and broken, which more effectively reduces the possibility of mice constantly biting.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The new type of central anti-rat-bite optical cable uses special-shaped silicone material on the outermost layer. Because the material is soft and elastic, rats cannot bite it to achieve the purpose of grinding teeth, which objectively avoids the probability of its biting. This is the first level of protection; if the rodent continues to bite, it will bite through the glass yarn layer and the metal braided layer. The glass fiber is extremely fine and brittle, and the metal steel wire braid is thin and hard. During the biting process of the rodent, it will seriously damage the rat's mouth and prevent it from continuing to bite. This is the second level of protection; if the rodent still continues to bite, because its center is a stainless steel casing, it not only increases the compressive strength of the optical cable, but also ensures that the rodent cannot bite the optical fiber inside it due to its high strength and hardness. This is the third level of protection. The three-layer protection effectively avoids damage to the optical cable; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of this practical optical cable.

[0015] In the figure: 1. optical fiber; 2. water-blocking fiber paste; 3. stainless steel casing; 4. polyethylene inner sheath; 5. metal braided mesh; 6. glass yarn; 7. silicone outer sheath. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1 The utility model provides a technical solution: a new type of central rat-proof optical cable, a stainless steel casing 3 is placed in the center of the optical cable structure, an optical fiber 1 is placed inside the steel tube and filled with water-blocking fiber paste 2 material, a layer of polyethylene inner sheath 4 material is extruded outside the central tube, the inner sheath is covered with a woven steel wire mesh and glass yarn 6, and the outermost layer is a silicone sheath material.

[0018] A stainless steel casing 3 can hold up to 96 optical fibers 1, the inner sheath is a polyethylene inner sheath 4, and the metal braided mesh 5 is a staggered woven steel wire of 0.1-0.3 mm. The larger space allows more optical fibers to be placed inside, so that more optical fibers can be protected from damage, and mice are not likely to gnaw the optical fibers. The metal braided mesh can more effectively isolate the internal facilities from the outside, and mice are not likely to damage them when gnawing. If the fine metal braided mesh is damaged, it can also cause great damage to the mouse's mouth, making it impossible for the mouse to continue gnawing, thereby more effectively protecting the internal facilities.

[0019] Glass yarn 6 is glass fiber, and the outer sheath material is silicone material. It is an inorganic non-metallic material with excellent performance and a wide variety. Its advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but its disadvantages are brittleness and poor wear resistance. It is made of six kinds of minerals, namely pyrophyllite, quartz sand, limestone, dolomite, calcium borate and magnesium borate, as raw materials through high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its single filament is several microns to more than twenty microns, which is equivalent to 1 / 20-1 / 5 of a hair. Each bundle of fiber raw silk is composed of hundreds or even thousands of single filaments. Glass fiber is relatively brittle, and it is very prickly to the mouth after being bitten by mice, which more effectively prevents the possibility of mice constantly biting. Silicone is also called silicone rubber and silica gel. Silicone is a highly active adsorption material, which is an amorphous material, not a plastic. The materials used in the production process of silicone are relatively superior, but the cost is lower than that of plastic.

[0020] Working principle: When it is necessary to use the new central anti-rat-bite optical cable, the outermost layer of the optical cable 1 is made of special-shaped silicone material. Silicone is also called silicone rubber and silica gel. Silicone is a highly active adsorption material and an amorphous material, not a plastic. The materials used in the production process of silicone are relatively superior, but the cost is lower than the cost of plastic. Because of its soft and elastic material, rats cannot achieve the purpose of grinding their teeth by biting, which objectively avoids the probability of their biting, which is a layer of protection; if the rodent continues to bite, it will bite through 6 layers of glass yarn and 5 layers of metal woven mesh. The glass fiber is extremely fine and brittle. It is an inorganic non-metallic material with excellent performance and a wide variety. Its advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but its disadvantages are brittleness and poor wear resistance. It is made of six kinds of ores, namely pyrophyllite, quartz sand, limestone, dolomite, calcium borate and magnesium borate, through high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its single wire is several The metal wire mesh is thin and hard, and the metal mesh can more effectively isolate the internal facilities from the outside. It is not easy for mice to bite it. If the fine metal mesh is bitten, it can also cause great damage to the mouth of the mouse, making it unable to continue to bite. It more effectively protects the internal facilities. During the biting process of the rodent, the mouth of the mouse will be seriously damaged to prevent it from continuing to bite. This is the double protection. If the mouse still continues to bite, because its center is a stainless steel sleeve 3, which is stainless and corrosion-resistant as the main characteristics, and the chromium content is at least 10.5%, and the carbon content is not more than 1.2%. Steel, not only increases the compressive capacity of the optical cable 1, but also ensures that the mouse cannot bite the optical fiber inside it due to the high strength and hardness of the stainless steel sleeve 3. This is the third protection. The three-layer protection effectively avoids damage to the optical cable 1, greatly increases the safety of the optical cable 1, and can also cause damage to the mouse's mouth so that it cannot bite repeatedly in a short time.

[0021] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A new type of central rat-proof optical cable, characterized by: It comprises a stainless steel casing (3), the stainless steel casing (3) is placed at the center of the optical cable structure, an optical fiber (1) is placed inside the steel casing and filled with a water-blocking fiber paste (2) material, a layer of polyethylene inner sheath (4) material is extruded outside the center tube, the inner sheath is coated with a braided steel wire mesh and glass yarn (6), and the outermost layer is a silicone sheath material; Also included is a metal braided mesh (5).

2. According to claim 1, the novel central rat-proof optical cable is characterized in that: The stainless steel casing (3) can contain up to 96 optical fibers (1).

3. A novel central rat-proof optical cable according to claim 2, characterized in that: The inner sheath is a polyethylene inner sheath (4).

4. The novel central rat-proof optical cable according to claim 3 is characterized in that: The metal braided mesh (5) is made of staggered steel wires with a diameter of 0.1-0.3 mm.

5. The novel central rat-proof optical cable according to claim 4 is characterized in that: The glass yarn (6) is glass fiber.

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