CN216083198U

CN216083198U - Optical cable with dampproofing function

Info

Publication number: CN216083198U
Application number: CN202122138954.7U
Authority: CN
Inventors: 吴安辉; 黄太辉
Original assignee: Shenzhen Kangbotong Technology Co ltd
Current assignee: Shenzhen Kangbotong Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-03-18
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to the technical field of optical cables, in particular to an optical cable with a moisture-proof function. The optical cable is prevented from being interfered by external signals and the impact resistance of the optical cable is improved by arranging the first shielding net and the second shielding net of the shielding layer in a double-layer mode, the fireproof and heat-insulating performance of equipment is improved by arranging the middle layer and the flame-retardant channel, in addition, the moisture-proof performance of the optical cable is improved under the action of the silica gel desiccant, and the optical cable has good pressure-resistant capacity by arranging the buffer tube, the breathing hole and the elastic steel wire, so that the service life of the equipment is prolonged.

Description

Optical cable with dampproofing function

Technical Field

The utility model relates to the technical field of optical cables, in particular to an optical cable with a moisture-proof function.

Background

With the continuous development of the communication industry, optical cables are widely applied, and a commonly used layer-stranded optical cable generally comprises a cable core, a cable core protective layer and a sheath; the cable core is formed by twisting a plurality of loose tubes containing optical fibers around a central reinforcing core, and when the required number of cores is less, a filling rope can be used for replacing part of the loose tubes, and all or part of gaps in the cable core can be filled with water-blocking materials; the cable core protective layer can be made of water-blocking materials, steel belts, aluminum belts and the like, and can even be a composite layer formed by coating the steel belts or the aluminum belts with plastic protective layers and a further composite layer formed by coating the protective layers with materials such as steel wires, steel belts or aluminum belts and the like; the sheath is usually plastic, and polyethylene, low smoke zero halogen polyethylene and the like are commonly used.

The traditional optical cable has certain water resistance, but the performance in the aspects of heat insulation, moisture resistance, pressure resistance, corrosion resistance and the like needs to be enhanced, so that the optical cable is easily influenced by the external environment, therefore, technical personnel in the field provide the optical cable with the moisture-proof function to solve the problems provided in the background technology.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an optical cable with moisture-proof function, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: an optical cable with a moisture-proof function comprises an outer protection layer, wherein a fixed sleeve is arranged inside the outer protection layer, an inner protection layer is uniformly arranged inside the fixed sleeve, a buffer tube is arranged in the middle of the fixed sleeve, optical fibers are uniformly arranged inside the inner protection layer, a silica gel drying agent is filled inside the inner protection layer, and a shielding layer is arranged between the outer protection layer and the fixed sleeve;

the shielding layer includes the intermediate level, be equipped with first shielding net between the outside in intermediate level and the inboard of outer protective layer, and install second shielding net between the inboard in intermediate level and fixed sleeving's the outside.

As a further aspect of the utility model: the intermediate layer is a component made of glass fiber rope, and the first shielding net and the second shielding net are net-shaped structures woven by pure copper wires.

As a further aspect of the utility model: and flame-retardant channels are uniformly formed in the surface of the middle layer, and flame retardants are filled in the flame-retardant channels.

As a further aspect of the utility model: the buffer tube is a rubber component, and breathing holes are uniformly formed in the surface of the buffer tube.

As a further aspect of the utility model: the surface of the outer protective layer is provided with an anticorrosive coating which is made of epoxy resin.

As a further aspect of the utility model: the outer protective layer is made of a mildew-proof halogen-free low-smoke PE material, and the inner wall of the buffer tube is provided with a spiral elastic steel wire.

Compared with the prior art, the utility model has the beneficial effects that: the optical cable is prevented from being interfered by external signals and the impact resistance of the optical cable is improved by arranging the first shielding net and the second shielding net of the shielding layer in a double-layer mode, the fireproof and heat-insulating performance of equipment is improved by arranging the middle layer and the flame-retardant channel, in addition, the moisture-proof performance of the optical cable is improved under the action of the silica gel desiccant, and the optical cable has good pressure-resistant capacity by arranging the buffer tube, the breathing hole and the elastic steel wire, so that the service life of the equipment is prolonged.

Drawings

Fig. 1 is a schematic structural view of an optical cable having a moisture-proof function;

fig. 2 is an enlarged schematic view of a moisture-proof optical cable shown in fig. 1;

fig. 3 is a schematic view of an internal structure of an optical cable having a moisture-proof function.

In the figure: 1. an outer protective layer; 2. a shielding layer; 21. a first shielding mesh; 22. a second shielding mesh; 23. an intermediate layer; 24. a flame retardant channel; 3. fixing the sleeve; 4. an inner protective layer; 5. an optical fiber; 6. a silica gel desiccant; 7. a buffer tube; 8. a breathing hole.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the present invention, an optical cable with a moisture-proof function includes an outer protection layer 1, a fixing sleeve 3 is installed inside the outer protection layer 1, an inner protection layer 4 is evenly installed inside the fixing sleeve 3, a buffer tube 7 is installed at the middle position of the fixing sleeve 3, an optical fiber 5 is evenly installed inside the inner protection layer 4, and a silica gel desiccant 6 is filled inside the inner protection layer 4, under the action of the silica gel desiccant 6, moisture-proof capability of the optical cable is improved, when an external pressure is applied to the surface of the present invention, the buffer tube 7 and an elastic steel wire are deformed under pressure, the present invention has good pressure-proof capability through the arrangement of a rubber material of the buffer tube 7 and the elastic steel wire, so as to prolong service life of the device, and a shielding layer 2 is installed between the outer protection layer 1 and the fixing sleeve 3;

shielding layer 2 includes intermediate level 23, be equipped with first shielding net 21 between the outside of intermediate level 23 and the inboard of outer protective layer 1, and install second shielding net 22 between the inboard of intermediate level 23 and the outside of fixed sleeving 3, under the double-deck of first shielding net 21 of shielding layer 2 and second shielding net 22 sets up, avoid the optical cable to receive external signal interference, improve optical cable signal transmission's stability, and the pure copper material of first shielding net 21 and second shielding net 22 can improve the shock resistance of optical cable, the setting of the inside fire retardant of glass fiber rope and the fire-retardant passageway 24 through intermediate level 23, increase substantially the fire prevention of equipment, the heat-proof quality.

In fig. 3, the middle layer 23 is a member made of a glass fiber rope, the fireproof and heat-insulating properties of the device are improved, the first shielding net 21 and the second shielding net 22 are net-shaped structures woven by pure copper wires, and under the double-layer arrangement of the first shielding net 21 and the second shielding net 22 of the shielding layer 2, the optical cable is prevented from being interfered by external signals, the stability of optical cable signal transmission is improved, and the impact resistance of the optical cable can be improved by the pure copper material of the first shielding net 21 and the second shielding net 22.

In fig. 3, the surface of the intermediate layer 23 is uniformly provided with flame-retardant channels 24, the flame retardant is filled in the flame-retardant channels 24, and the fireproof and heat-insulating properties of the equipment are greatly improved by the arrangement of the glass fiber ropes of the intermediate layer 23 and the flame retardant in the flame-retardant channels 24.

In fig. 3, the buffer tube 7 is a rubber member, and the surface of the buffer tube 7 is uniformly provided with breathing holes 8, which are beneficial to the deformation of the buffer tube 7 and the restoration after the deformation through the arrangement of the breathing holes 8.

In fig. 1, the surface of the outer protective layer 1 is provided with an anticorrosive coating, and the anticorrosive coating is a coating made of epoxy resin, and the anticorrosive performance of the equipment is improved through the excellent chemical resistance of the epoxy resin.

In fig. 3, the outer protective layer 1 is made of a mildew-proof halogen-free low-smoke PE material, and mainly plays a role of mildew prevention and moisture prevention, and the inner wall of the buffer tube 7 is provided with a spiral elastic steel wire, so that the equipment has good pressure resistance, and the service life of the equipment is prolonged.

The working principle of the utility model is as follows: the utility model has simple structure and novel design, when in use, the anticorrosive coating on the surface of the outer protective layer 1 contacts with the external environment, the corrosion resistance of the equipment is improved through the excellent chemical resistance of the epoxy resin material, the optical cable is prevented from being interfered by external signals under the double-layer arrangement of the first shielding net 21 and the second shielding net 22 of the shielding layer 2, the stability of the optical cable signal transmission is improved, the impact resistance of the optical cable can be improved through the pure copper material of the first shielding net 21 and the second shielding net 22, the fireproof and heat-insulating properties of the equipment are greatly improved through the arrangement of the glass fiber rope of the intermediate layer 23 and the fire retardant inside the flame retardant channel 24, in addition, the damp-proof capability of the optical cable is improved under the action of the silica gel desiccant 6, when the external pressure is applied on the surface of the utility model, the buffer tube 7 and the elastic steel wire are deformed under the pressure, through the arrangement of the rubber material of the buffer tube 7 and the elastic steel wire, the utility model has good pressure resistance, thereby prolonging the service life of the equipment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The optical cable with the moisture-proof function comprises an outer protection layer (1) and is characterized in that a fixing sleeve (3) is installed inside the outer protection layer (1), an inner protection layer (4) is evenly installed inside the fixing sleeve (3), a buffer tube (7) is installed in the middle of the fixing sleeve (3), optical fibers (5) are evenly installed inside the inner protection layer (4), a silica gel drying agent (6) is filled inside the inner protection layer (4), and a shielding layer (2) is installed between the outer protection layer (1) and the fixing sleeve (3);

the shielding layer (2) comprises an intermediate layer (23), a first shielding net (21) is arranged between the outer side of the intermediate layer (23) and the inner side of the outer protection layer (1), and a second shielding net (22) is arranged between the inner side of the intermediate layer (23) and the outer side of the fixed sleeve (3).

2. An optical cable with moisture-proof function as claimed in claim 1, wherein the intermediate layer (23) is a member made of glass fiber rope, and the first shielding net (21) and the second shielding net (22) are net-shaped structures woven by pure copper wires.

3. The optical cable with the moisture-proof function as claimed in claim 1, wherein the surface of the intermediate layer (23) is uniformly provided with flame-retardant channels (24), and the flame-retardant channels (24) are filled with a flame retardant.

4. The optical cable with moisture-proof function as claimed in claim 1, wherein the buffer tube (7) is a rubber member, and breathing holes (8) are uniformly formed on the surface of the buffer tube (7).

5. The optical cable with the moisture-proof function as claimed in claim 1, wherein an anti-corrosion layer is arranged on the surface of the outer protection layer (1), and the anti-corrosion layer is made of epoxy resin paint.

6. The optical cable with the moisture-proof function as claimed in claim 1, wherein the outer protection layer (1) is made of a mildew-proof halogen-free low-smoke PE material, and the inner wall of the buffer tube (7) is provided with a spiral elastic steel wire.