Corrosion-resistant optical cable

Abstract

The corrosion-resistant optical cable comprises an outer sheath, a plastic-coated aluminum tape layer, a plurality of internal optical fibers, a plurality of loose tubes, a filling rope and a central reinforcing core, a protection mechanism is arranged outside the outer sheath, the protection mechanism comprises a protection sleeve, three connecting strips are arranged in the protection sleeve at equal angles, an annular cavity is formed in the protection sleeve, and the outer sheath and the loose tubes are arranged in the annular cavity. An annular cavity is formed in the outer sheath, water blocking ointment is arranged in the annular cavity, three front check blocks are arranged in the protective sleeve, three rear check blocks are arranged in the protective sleeve, air inlet holes are formed in the front faces of the three front check blocks, hole sealing plugs are arranged in inner cavities of the three air inlet holes, and anti-corrosion gas is arranged between the protective sleeve and the outer sheath. According to the utility model, the protection mechanism is arranged, and the protection sleeve, the connecting strip, the water-blocking ointment, the front stop block, the rear stop block and the anti-corrosion gas cooperate with one another, so that waterproof and anti-corrosion protection can be performed on the optical cable, the anti-corrosion strength of the optical cable is improved, and the service life of the optical cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of optical cables, in particular to a corrosion-resistant optical cable. Background Art

[0002] Optical cable is a communication line used to realize optical signal transmission. 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 individually or in groups. The transmission principle of optical cable is to convert the information to be transmitted into an electrical signal at the transmitting end, and then emit it to the laser beam through a laser. The intensity of light will change with the frequency of the electrical signal and be emitted through the optical fiber. At the receiving end, the detector receives the optical signal and converts it into an electrical signal, and restores the original information after processing.

[0003] When wiring optical cables, there are situations where the optical cables need to be laid in harsh environments. Optical cables that have been laid in harsh environments for a long time will be partially corroded under the influence of the surrounding environment. The above phenomenon will cause damage to the optical cables, which will reduce their service life. Utility Model Content

[0004] The purpose of the utility model is to provide a corrosion-resistant optical cable to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a corrosion-resistant optical cable, comprising:

[0006] An outer sheath, wherein a plastic-coated aluminum tape layer is disposed inside the outer sheath, a plurality of internal optical fibers are disposed inside the plastic-coated aluminum tape layer, loose tubes are disposed outside the plurality of internal optical fibers, a filling rope is disposed inside the plastic-coated aluminum tape layer, and a central reinforcing core is disposed inside the plastic-coated aluminum tape layer;

[0007] A protective mechanism is provided on the outside of the outer sheath;

[0008] The protection mechanism includes a protective sleeve, three connecting strips are arranged at equal angles inside the protective sleeve, an annular cavity is opened inside the protective sleeve, a water-blocking grease is arranged inside the annular cavity, three front blocks are arranged inside the protective sleeve, three rear blocks are arranged inside the protective sleeve, the front sides of the three front blocks are all provided with air inlet holes, the inner cavities of the three air inlet holes are all provided with sealing plugs, and anti-corrosion gas is arranged between the protective sleeve and the outer sleeve.

[0009] Preferably, the protective sleeve is arranged outside the outer sleeve, the connecting strip is fixedly connected between the protective sleeve and the outer sleeve, the front stopper is fixedly connected between the protective sleeve and the outer sleeve, and the rear stopper is fixedly connected between the protective sleeve and the outer sleeve.

[0010] Preferably, a valve is provided on the back side of the sealing plug, and the outer wall of the valve is fixedly connected to the inner wall of the air inlet.

[0011] Preferably, a fixing ring is provided on the back side of the sealing plug, the outer wall of the fixing ring is fixedly connected to the inner wall of the air inlet, and a sealing ring is fixedly connected to the front side of the fixing ring.

[0012] Preferably, the outer wall of the sealing plug is threadedly connected to the inner wall of the air inlet, and a strip-shaped auxiliary groove is provided on the front side of the sealing plug.

[0013] Preferably, the outer wall of the connecting strip is fixedly connected to the outer wall of the corresponding front stopper, the outer wall of the connecting strip is fixedly connected to the outer wall of the corresponding rear stopper, and the outer wall of the connecting strip is provided with a plurality of vent holes at equal intervals.

[0014] Technical effects and advantages of the utility model:

[0015] (1) The utility model utilizes the setting of the protection mechanism, and can provide waterproof and anti-corrosion protection for the optical cable through the cooperation between the protective sleeve, the connecting strip, the water-blocking grease, the front block, the rear block and the anti-corrosion gas, thereby improving the anti-corrosion strength of the optical cable and prolonging the service life of the optical cable;

[0016] (2) The utility model utilizes the arrangement of a fixing ring and a sealing ring. Through the cooperation between the fixing ring, the sealing ring and the sealing plug, the anti-corrosion gas can be prevented from flowing out of the space between the protective sleeve and the outer sleeve, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a front sectional structural schematic diagram of the utility model.

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the air intake hole of the utility model.

[0021] In the figure: 1. outer sheath; 2. plastic-coated aluminum tape layer; 3. internal optical fiber; 4. loose tube; 5. filling rope; 6. central reinforcing core; 7. protection mechanism; 701. protective sleeve; 702. connecting strip; 703. water-blocking grease; 704. front block; 705. rear block; 706. sealing plug; 707. anti-corrosion gas; 708. valve; 709. fixing ring; 710. sealing ring; 711. vent. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides Figure 1-4 A corrosion-resistant optical cable shown includes an outer sheath 1, a plastic-coated aluminum tape layer 2 is provided inside the outer sheath 1, a plurality of internal optical fibers 3 are provided inside the plastic-coated aluminum tape layer 2, a loose tube 4 is provided outside the plurality of internal optical fibers 3, a filling rope 5 is provided inside the plastic-coated aluminum tape layer 2, the filling rope 5 mainly plays a role in supporting and protecting the internal optical fibers 3, a central reinforcing core 6 is provided inside the plastic-coated aluminum tape layer 2, the central reinforcing core 6 is a low-carbon galvanized steel wire, a filler is provided between the loose tube 4, the central reinforcing core 6, the filling rope 5 and the plastic-coated aluminum tape layer 2, and the material of the filler is polyethylene;

[0024] The outer sheath 1 is provided with a protective mechanism 7, which includes a protective sleeve 701, which is arranged on the outside of the outer sheath 1, and three connecting strips 702 are arranged at equal angles inside the protective sleeve 701, and the connecting strips 702 are fixedly connected between the protective sleeve 701 and the outer sheath 1, and an annular cavity is provided inside the protective sleeve 701, and a water-blocking grease 703 is provided inside the annular cavity, which plays a waterproof role, improves the anti-corrosion strength of the optical cable in a humid environment, and the protective sleeve 701 is provided with a protective sleeve 701. Three front blocks 704 are arranged inside, and the front blocks 704 are fixedly connected between the protective sleeve 701 and the outer sleeve 1. Three rear blocks 705 are arranged inside the protective sleeve 701. The front blocks 704 and the rear blocks 705 have the same shape but different thicknesses. The rear blocks 705 are fixedly connected between the protective sleeve 701 and the outer sleeve 1. The front faces of the three front blocks 704 are all provided with air inlet holes. The inner cavities of the three air inlet holes are all provided with sealing plugs 706. The outer wall of the sealing plug 706 is threadedly connected to the inner wall of the air inlet hole. A strip-shaped auxiliary groove is provided on the front of the plug 706, and the strip-shaped auxiliary groove is convenient for the staff to drive the sealing plug 706 to rotate with the help of a flat-blade screwdriver. A fixing ring 709 is provided on the back of the sealing plug 706, and the outer wall of the fixing ring 709 is fixedly connected to the inner wall of the air inlet. A sealing ring 710 is fixedly connected to the front of the fixing ring 709. The fixing ring 709, the sealing ring 710 and the sealing plug 706 are used to improve the sealing performance. A valve 708 is provided on the back of the sealing plug 706, and the outer wall of the valve 708 is fixedly connected to the inner wall of the air inlet. Fixed connection, valve 708 is used to prevent anti-corrosion gas 707 from flowing out when sealing plug 706 is separated from the air inlet, anti-corrosion gas 707 is provided between protective sleeve 701 and outer sleeve 1, anti-corrosion gas 707 is nitrogen, the outer wall of connecting strip 702 is fixedly connected with the outer wall of front stopper 704 corresponding to the position, the outer wall of connecting strip 702 is fixedly connected with the outer wall of rear stopper 705 corresponding to the position, the outer wall of connecting strip 702 is equidistantly provided with a plurality of ventilation holes 711, and the plurality of ventilation holes 711 are all arranged in an arc shape.

[0025] Working principle of this utility model:

[0026] When performing optical cable wiring work, insert a flat-blade screwdriver into the strip auxiliary groove on the sealing plug 706 and drive the sealing plug 706 to rotate counterclockwise. When the sealing plug 706 is separated from the air inlet, nitrogen is filled between the protective sleeve 701 and the outer sheath 1 through the air supply equipment and the air inlet. When the protective sleeve 701 is in an expanded state, the air supply is stopped and the air inlet is sealed again through the sealing plug 706. In the above process, it is necessary to ensure that the sealing plug 706 squeezes the sealing ring 710 to achieve the purpose of sealing, and then the optical cable wiring work can be carried out. During use, the water-blocking grease 703 inside the protective sleeve 701 plays a waterproof role, and the nitrogen between the protective sleeve 701 and the outer sheath 1 plays an anti-corrosion role, which improves the anti-corrosion strength of the optical cable and increases the service life of the optical cable.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrosion-resistant optical cable, comprising: An outer sheath (1), wherein a plastic-coated aluminum tape layer (2) is provided inside the outer sheath (1), a plurality of internal optical fibers (3) are provided inside the plastic-coated aluminum tape layer (2), a loose tube (4) is provided outside the plurality of internal optical fibers (3), a filling rope (5) is provided inside the plastic-coated aluminum tape layer (2), and a central reinforcing core (6) is provided inside the plastic-coated aluminum tape layer (2); The invention is characterized in that a protection mechanism (7) is provided outside the outer sheath (1); The protection mechanism (7) comprises a protection sleeve (701), three connecting strips (702) are arranged at equal angles inside the protection sleeve (701), an annular cavity is provided inside the protection sleeve (701), a water-blocking paste (703) is provided inside the annular cavity, three front blocks (704) are provided inside the protection sleeve (701), three rear blocks (705) are provided inside the protection sleeve (701), air inlet holes are provided on the front sides of the three front blocks (704), sealing plugs (706) are provided in the inner cavities of the three air inlet holes, and anti-corrosion gas (707) is provided between the protection sleeve (701) and the outer sleeve (1).

2. A corrosion-resistant optical cable according to claim 1, characterized in that: The protective sleeve (701) is arranged outside the outer sleeve (1), the connecting strip (702) is fixedly connected between the protective sleeve (701) and the outer sleeve (1), the front stopper (704) is fixedly connected between the protective sleeve (701) and the outer sleeve (1), and the rear stopper (705) is fixedly connected between the protective sleeve (701) and the outer sleeve (1).

3. The corrosion-resistant optical cable according to claim 1, characterized in that: A valve (708) is provided on the back of the sealing plug (706), and the outer wall of the valve (708) is fixedly connected to the inner wall of the air inlet.

4. The corrosion-resistant optical cable according to claim 1, characterized in that: A fixing ring (709) is provided on the back of the sealing plug (706), the outer wall of the fixing ring (709) is fixedly connected to the inner wall of the air inlet, and a sealing ring (710) is fixedly connected to the front of the fixing ring (709).

5. The corrosion-resistant optical cable according to claim 1, characterized in that: The outer wall of the sealing plug (706) is threadedly connected to the inner wall of the air inlet, and a strip-shaped auxiliary groove is provided on the front side of the sealing plug (706).

6. The corrosion-resistant optical cable according to claim 1, characterized in that: The outer wall of the connecting strip (702) is fixedly connected to the outer wall of the front stopper (704) at a corresponding position, and the outer wall of the connecting strip (702) is fixedly connected to the outer wall of the rear stopper (705) at a corresponding position. The outer wall of the connecting strip (702) is provided with a plurality of vent holes (711) at equal intervals.

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