Fire-resistant flexible optical cable for ships and warships

Abstract

The utility model discloses a fireproof soft optical cable for ships, and relates to the technical field of optical cables. The low-smoke halogen-free optical cable comprises an inner core, the inner core is composed of four optical fibers wrapped by tight wrapping layers, an aramid fiber layer is arranged outside the inner core, a low-smoke halogen-free outer sheath is arranged on the outermost side of the aramid fiber layer, and the inner surface and the outer surface of the low-smoke halogen-free outer sheath are coated with a first capsaicin layer and a second capsaicin layer respectively. A plurality of groups of functional blocks are arranged outside the low-smoke halogen-free outer sheath in an annular array, and the second pepper layer is also coated on the side part of the outer surface of the functional blocks; each group of functional blocks are linearly distributed along the rear side of the low-smoke halogen-free outer sheath, and every two groups of adjacent functional blocks are distributed in a staggered manner; a built-in cavity is formed in the functional block, the interior of the built-in cavity is coated with a third capsaicin layer, and by arranging the first capsaicin layer, the second capsaicin layer and the third capsaicin layer, the function of preventing the optical cable from being bitten by rats is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of optical cable technology, specifically, it relates to a fire-resistant flexible optical cable for ships. Background Technology

[0002] Optical fiber cable is a type of cable. It is a communication cable assembly that uses one or more optical fibers placed in a sheath as the transmission medium and can be used alone or in combination. It is widely used in daily life, shipbuilding, construction and electronics industries.

[0003] Flexible optical cable is one of many types of optical cables. When flexible optical cable is used in the marine field as a ship, the optical transmission signal is interrupted because rodents such as rats can damage and bite the optical fiber units in the cabin, deck and compartment. The existing technology mainly prevents rats from gnawing by coating the surface of the sheath layer with capsaicin. However, during the transportation and laying of the optical cable, the capsaicin layer will be worn away, so that the worn parts do not have the capsaicin layer to prevent rats from gnawing. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a fire-resistant flexible optical cable for ships.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A fire-resistant flexible optical cable for ships includes an inner core composed of four optical fibers wrapped with a tight-packing layer. An aramid layer is provided on the outside of the inner core, and a low-smoke halogen-free outer sheath is provided on the outermost side of the aramid layer. The inner and outer surfaces of the low-smoke halogen-free outer sheath are coated with a first capsaicin layer and a second capsaicin layer, respectively. Multiple functional blocks are arranged in a ring array on the outside of the low-smoke halogen-free outer sheath. The second capsaicin layer is also coated on the outer surface side of the functional blocks.

[0007] Each group of functional blocks is arranged in a straight line along the rear side of the low-smoke halogen-free outer sheath, and every two adjacent groups of functional blocks are arranged in an alternating pattern.

[0008] The functional block has an internal cavity, and a third capsaicin layer is coated inside the internal cavity.

[0009] Optionally, the top surface of the functional block is provided with multiple embedding slots for placing metal blocks. The embedding slots are fixed to the metal blocks by an adhesive liquid, and the surface of each metal block is coated with an antibacterial agent.

[0010] Optionally, each metal block has pre-ground ceramic blocks on both sides, and the pre-ground ceramic blocks are fixed to the surface of the functional block.

[0011] Optionally, each of the built-in cavities has abutment blocks at both the upper and lower ends, and a gap is reserved between two adjacent abutment blocks. The third capsaicin layer is also coated on the surface of the abutment blocks.

[0012] Optionally, the aramid layer is provided with a low-smoke halogen-free inner liner, and a shielding braided layer is provided between the low-smoke halogen-free inner liner and the low-smoke halogen-free outer sheath.

[0013] Optionally, mica tape is provided on both the inner and outer sides of the shielding braided layer.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0015] 1. This utility model prevents rodents from gnawing on the optical cable by setting a first capsaicin layer, a second capsaicin layer, and a third capsaicin layer. Considering that the first capsaicin layer is easily worn and its effectiveness cannot be guaranteed, the second capsaicin layer is placed inside the low-smoke halogen-free outer sheath. That is, when a rat gnaws at the low-smoke halogen-free outer sheath from a damaged area of ​​the first capsaicin layer to the inside, the second capsaicin layer will prevent the rat from continuing to gnaw. Furthermore, when a rat gnaws at a functional block, after biting through it, the third capsaicin layer will prevent the rat from continuing to gnaw. At the same time, to avoid affecting the flexibility of the flexible optical cable itself by setting multiple multi-functional blocks on the outside of the low-smoke halogen-free outer sheath, see the attached drawings in the specification. Figure 2 It can be seen that multiple adjacent functional blocks are distributed in an interleaved manner, and a reserved gap is reserved between functional blocks in the same group for the bending of the optical cable, so it will not affect the bending requirements when it is laid out.

[0016] 2. Considering that the device needs to be installed in a ship cabin with poor air circulation, where bacteria are prone to grow, this utility model designs an antibacterial agent with a metal block as a carrier on the surface of the functional block. The metal block can be made of metal with antibacterial effect according to the antibacterial requirements, and the antibacterial agent can also inhibit bacteria in the optical cable laying environment.

[0017] 3. Considering that the optical cable may be laid in a ship's cabin with poor air circulation during the later stages of installation, this utility model uses a low-smoke halogen-free material as the inner lining and sheath. The low-smoke halogen-free material does not contain halogens, so even if a combustion accident occurs later, it will not produce a large amount of toxic smoke, thus avoiding the spread of toxic smoke in poorly ventilated environments and its impact on the health of the crew.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the combined structure of the low-smoke halogen-free outer sheath and functional block of this utility model.

[0022] Figure 3 This is a schematic cross-sectional view of the combined component structure of the functional block, metal block, pre-ground ceramic block and abutment block in this utility model.

[0023] Figure 4 for Figure 1 Enlarged schematic diagram of part A in the diagram;

[0024] Figure 5 for Figure 1 Enlarged schematic diagram of part B in the diagram.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Optical fiber; 2. Tight-packing layer; 3. Aramid layer; 4. Low-smoke halogen-free outer sheath; 5. First capsaicin layer; 6. Second capsaicin layer; 7. Functional block; 8. Third capsaicin layer; 9. Metal block; 10. Antibacterial agent; 11. Pre-ground ceramic block; 12. Contact block; 13. Low-smoke halogen-free inner lining layer; 14. Shielding braided layer; 15. Mica tape.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Please see Figures 1 to 5 This utility model provides a technical solution: a fire-resistant flexible optical cable for ships, including an inner core, which is composed of four optical fibers 1 wrapped with a tight-packing layer 2. An aramid layer 3 is provided on the outside of the inner core. A low-smoke halogen-free outer sheath 4 is provided on the outermost side of the aramid layer 3. The inner and outer surfaces of the low-smoke halogen-free outer sheath 4 are respectively coated with a first capsaicin layer 5 and a second capsaicin layer 6. Multiple functional blocks 7 are arranged in a ring array on the outside of the low-smoke halogen-free outer sheath 4. The second capsaicin layer is also coated on the outer surface side of the functional blocks 7.

[0030] Each group of functional blocks 7 is distributed in a straight line along the rear side of the low-smoke halogen-free outer sheath 4, and each pair of adjacent functional blocks 7 are distributed in an alternating manner.

[0031] Functional block 7 has an internal cavity, inside which a third capsaicin layer 8 is coated. Considering that rodents such as rats may damage and bite through optical fiber unit 1 in cabins, decks, and compartments, causing optical transmission signal interruption, existing technology mainly prevents rats from gnawing by applying capsaicin to the surface of the sheath layer. However, during the transportation and laying of optical cables, the capsaicin layer will be worn, resulting in the worn areas not having a capsaicin layer to prevent rats from gnawing. This utility model uses a first capsaicin layer 5, a second capsaicin layer 6, and a third capsaicin layer 8 to prevent rats from gnawing on the optical cable. Considering that the first capsaicin layer 5 is easily worn and its effectiveness cannot be guaranteed, the second capsaicin layer 6 is placed inside the low-smoke halogen-free outer sheath 4. That is, when rats gnaw on the low-smoke halogen-free outer sheath 4 from the damaged part of the first capsaicin layer 5 to the inside, the second capsaicin layer 6 will prevent the rats from gnawing further. And when rats gnaw on functional block 7, after biting through it, the third capsaicin layer 8 will prevent the rats from gnawing further.

[0032] The top surface of the functional block 7 has multiple embedding slots for placing metal blocks 9. The embedding slots are fixed to the metal blocks 9 by adhesive liquid, and the surface of each metal block 9 is coated with antibacterial agent 10. Considering that the device needs to be installed in a ship cabin with poor air circulation, such an environment is prone to bacterial growth, the surface of the functional block 7 is designed with antibacterial agent 10 on the metal blocks 9 as carrier. The metal blocks 9 can use metal with antibacterial effect according to antibacterial needs, and the antibacterial agent 10 can also inhibit bacteria in the optical cable laying environment.

[0033] Each metal block 9 has a pre-polished ceramic block 11 on both sides, and the pre-polished ceramic block 11 is fixed to the surface of the functional block 7. Since there is friction during the optical cable laying process, it is necessary to protect the antibacterial agent 10 in order to protect its effectiveness. Therefore, the pre-polished ceramic block 11 is designed. The pre-polished ceramic block 11 is higher than the metal block 9, so that when it comes into contact with the ground, the pre-polished ceramic block 11 is rubbed first, thereby protecting the antibacterial agent 10 on the surface of the metal block 9.

[0034] Each internal cavity has a contact block 12 at both the upper and lower ends, and a gap is reserved between two adjacent contact blocks 12. The third capsaicin layer 8 is also coated on the surface of the contact block 12. By setting the contact blocks 12 distributed vertically in the placement cavity, the functional block 7 has a certain buffering effect. That is, when the optical cable lands, the placement cavity deforms due to its own weight when the functional block 7 contacts the ground. During the deformation process, the two contact blocks 12 distributed vertically will collide with each other, thereby weakening the impact force.

[0035] The aramid layer 3 is surrounded by a low-smoke halogen-free inner lining layer 13, and a shielding braided layer 14 is provided between the low-smoke halogen-free inner lining layer 13 and the low-smoke halogen-free outer sheath 4. Considering that the optical cable may be laid in a ship cabin with poor air circulation during the later stage of installation, the device uses low-smoke halogen-free material as the inner lining layer and sheath. The low-smoke halogen-free material does not contain halogens, so even if a combustion accident occurs later, it will not produce a large amount of toxic smoke, thus avoiding the spread of toxic smoke in poorly ventilated environments and affecting the health of the crew.

[0036] The shielding braided layer 14 has mica tape 15 on both the inner and outer sides. In order to further improve the heat resistance of the optical cable, mica tape 15 is set on both the inner and outer sides of the shielding braided layer 14. The high temperature resistance and flame resistance of the mica tape 15 itself are used to protect the optical cable for normal use and avoid it from being unable to be used normally due to high temperature.

[0037] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A fire-resistant flexible optical cable for ships, comprising an inner core, characterized in that, The inner core is composed of four optical fibers (1) wrapped with a tight-packed layer (2). An aramid layer (3) is provided on the outside of the inner core. A low-smoke halogen-free outer sheath (4) is provided on the outermost side of the aramid layer (3). The inner and outer surfaces of the low-smoke halogen-free outer sheath (4) are coated with a first capsaicin layer (5) and a second capsaicin layer (6), respectively. Multiple functional blocks (7) are arranged in a ring array on the outside of the low-smoke halogen-free outer sheath (4). The second capsaicin layer is also coated on the outer side of the functional block (7). Each group of functional blocks (7) is arranged in a straight line along the rear side of the low-smoke halogen-free outer sheath (4), and each pair of adjacent functional blocks (7) are arranged in an alternating pattern. The functional block (7) has an internal cavity, and a third capsaicin layer (8) is coated inside the internal cavity.

2. The fire-resistant flexible optical cable for ships according to claim 1, characterized in that, The top surface of the functional block (7) is provided with multiple embedding slots for placing metal blocks (9). The embedding slots are fixed to the metal blocks (9) by adhesive liquid, and the surface of each metal block (9) is coated with antibacterial agent (10).

3. The fire-resistant flexible optical cable for ships according to claim 1, characterized in that, Each metal block (9) has a pre-ground ceramic block (11) on both sides, and the pre-ground ceramic block (11) is fixed to the surface of the functional block (7).

4. The fire-resistant flexible optical cable for ships according to claim 1, characterized in that, Each of the built-in cavities has a contact block (12) at both the upper and lower ends, and a gap is reserved between two adjacent contact blocks (12). The third capsaicin layer (8) is also coated on the surface of the contact block (12).

5. A fire-resistant flexible optical cable for ships according to claim 1, characterized in that, The aramid layer (3) is provided with a low-smoke halogen-free inner liner (13) on the outside, and a shielding braided layer (14) is provided between the low-smoke halogen-free inner liner (13) and the low-smoke halogen-free outer sheath (4).

6. A fire-resistant flexible optical cable for ships according to claim 5, characterized in that, The shielding braided layer (14) has mica strips (15) on both its inner and outer sides.

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