Protection mechanism of layer-stranded outdoor optical cable

Abstract

The utility model discloses a protection mechanism for a layer-stranded outdoor optical cable, which comprises an optical cable main body, a loose tube used for wrapping and protecting the optical cable main body is arranged outside the optical cable main body, and a reinforcing layer used for carrying out compression-resistant support protection on the optical cable main body is arranged outside the loose tube. The cylindrical supporting blocks are evenly arranged in the cavity between the inner surface of the reinforcing layer and the outer surface of the loose tube, the cylindrical supporting blocks are arranged at equal intervals, and meanwhile the reinforcing ring pieces with the ventilation mesh holes are arranged between the cylindrical supporting blocks in a penetrating mode, so that the span between the cylindrical supporting blocks arranged at equal intervals is shortened, and the service life of the loose tube is prolonged. The cylindrical supporting blocks are uniformly stressed to support the reinforcing layer, so that the optical cable main body can be firmly supported after the optical cable is buried in the outdoor underground, uniform stress of extrusion and rolling force on the optical cable main body can be diffused, and the service life of the optical cable main body in the outdoor underground is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of optical cable, concretely relates to a protection mechanism of layer stranded outdoor optical cable. BACKGROUND

[0002] The layer stranded optical cable is formed by twisting a plurality of sleeve pipes containing optical fibers around a central reinforcing member into a round cable core, and a metal or non-metal reinforcing member is located at the center of the optical cable, and the loose sleeve pipes containing optical fibers are arranged around the reinforcing member. At present, the layer stranded optical cable is widely used, and most of the layer stranded optical cables are installed underground. Since most of the layer stranded optical cables do not have the protection function of preventing rats from gnawing, the optical cable is gnawed by rats from time to time.

[0003] Therefore, the protection type layer stranded optical cable with publication number "CN208239687U" includes an optical cable body, a support block fixedly connected to the surface of the optical cable body and fixedly connected to the inner wall of a reinforcing layer, a surface of the reinforcing layer fixedly connected to the inner wall of an electrically isolating layer, a surface of the electrically isolating layer fixedly connected to the inner wall of a reinforcing outer covering, a cavity formed in the back of the reinforcing outer covering, a chemical agent filled in the cavity, and a reinforcing mesh layer fixedly connected to the surface of the reinforcing outer covering. When the rats gnaw the reinforcing outer covering, the chemical agent is released to kill the rats, and the chemical agent is not wasted, thereby achieving a very good protection effect.

[0004] However, for the above-mentioned protection type layer stranded optical cable, although the support block fixedly connected to the surface of the optical cable body and the electrically isolating layer fixedly connected to the surface of the reinforcing layer can separate the optical cable body from the protection structure arranged outside by a certain distance, which is conducive to heat dissipation, protection and electrical isolation, the electrically isolating layer further enhances the external electrical isolation performance of the optical cable body, and good electrical isolation effect can be achieved. However, the following obvious defects still exist in the use process: the support blocks arranged uniformly in the above-mentioned optical cable support and strengthen heat dissipation. However, due to the large span between the arranged support blocks, the reinforcing layer will be deformed when the optical cable is subjected to extrusion force underground, thereby reducing the heat dissipation space. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a protection mechanism of layer stranded outdoor optical cable to solve the problems in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a protection mechanism of layer stranded outdoor optical cable, which comprises:

[0007] The utility model provides a kind of optical cable main body, the optical cable main body is externally provided with loose sleeve for wrapping protection to optical cable main body, the outer surface of the loose sleeve is externally provided with reinforcing layer for resisting pressure support protection to optical cable main body, the cavity between the inner side of the reinforcing layer and the outer surface of loose sleeve is uniformly provided with cylindrical support block for supporting and heat dissipation to optical cable main body under uniform stress;

[0008] The utility model provides a kind of optical cable outer sheath pipe, the outer surface of the optical cable outer sheath pipe is uniformly provided with medicament volatilization cavity for outward volatilization of medicament, the fiber mesh layer with volatilization hole is integrally formed at the port of the medicament volatilization cavity, and the optical cable positioning ring for adjusting and fixing position of optical cable when buried underground is movably arranged in the annular groove uniformly arranged outside the optical cable outer sheath pipe.

[0009] Preferably, the optical cable outer sheath pipe is internally provided with filling cavity, the filling cavity is filled with rodenticide for wrapping and setting optical cable main body to prevent insect and mouse gnawing when buried underground, to achieve the effect of driving away insect and mouse and killing insect and mouse, and to strengthen the protection of optical cable.

[0010] Preferably, the optical cable outer sheath pipe is internally provided with reinforcing sheath, the reinforcing sheath is uniformly provided with phosphorized steel wire belt in the internal cavity, to improve the tensile stability of optical cable.

[0011] Preferably, the reinforcing sheath is internally provided with water-blocking sheath pipe, the internal cavity of the water-blocking sheath pipe is filled with water-blocking ointment for blocking water, to effectively prevent water from penetrating into optical fiber.

[0012] Preferably, the reinforcing ring member is arranged through the cylindrical support blocks, the reinforcing ring member is uniformly provided with air-permeable mesh holes, to reduce the span between the cylindrical support blocks and strengthen the pressure resistance of optical cable.

[0013] Preferably, the annular groove is integrally formed on the outer surface of the optical cable outer sheath pipe, and the optical cable positioning ring is movably sleeved in the annular groove, and the outer surface of the optical cable positioning ring is uniformly provided with fixing block for positioning and fixing optical cable after buried in ground, to facilitate positioning and fixing of outdoor optical cable during underground pre-burial fixing, so as to keep the position of optical cable unchanged.

[0014] Preferably, the optical cable main body is internally provided with reinforcing phosphorized steel wire at the central position for outward supporting optical cable core to prevent extrusion contact, to effectively increase the tensile effect of optical cable and strengthen the service life of optical cable.

[0015] Compared with the prior art, the technical effects and advantages of the utility model are: the protection mechanism of the layer-stranded outdoor optical cable, through the uniformly arranged cylindrical supporting blocks in the cavity between the inner surface of the reinforcing layer and the outer surface of the loose tube, and the cylindrical supporting blocks are arranged at equal intervals, and the reinforcing ring with air holes is arranged between the cylindrical supporting blocks, the span between the cylindrical supporting blocks arranged at equal intervals is shortened, the cylindrical supporting blocks are uniformly stressed to support the reinforcing layer, the optical cable main body can be firmly supported after the optical cable is buried in the outdoor underground, the problem of deformation of the optical cable main body due to large support span under the condition of extrusion and rolling in the outdoor underground can be effectively prevented, thereby the uniform stress of the optical cable main body under the extrusion and rolling force can be diffused, and the service life of the optical cable main body in the outdoor underground is further improved.

[0016] Through the annular groove arranged at equal intervals outside the optical cable outer sheath, the optical cable positioning ring movably arranged in the annular groove, and the fixing block arranged on the optical cable positioning ring, after the outdoor optical cable is placed in the pre-buried pit, the optical cable fixing seat pre-cast and the fixing block on the optical cable positioning ring are locked and fixed, the outdoor optical cable can be positioned and fixed in the pre-buried pit, the position of the outdoor optical cable underground remains unchanged, the problem of position deviation and bending deformation of the outdoor optical cable buried in the underground due to the sinking of the soil is avoided, thereby the position of the outdoor optical cable underground remains unchanged, and the safety and service life of the outdoor optical cable are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 It is a structural schematic view of the utility model outdoor optical cable;

[0019] Fig. 3 It is a main view of the utility model reinforcing sheath external structure schematic view.

[0020] In the drawing: 1, optical cable main body; 2, loose tube; 3, reinforcing layer; 4, cylindrical supporting block; 5, optical cable outer sheath; 6, medicament volatilization cavity; 7, fiber mesh layer; 8, annular groove; 9, optical cable positioning ring; 10, filling cavity; 11, insect and rat repellent; 12, reinforcing sheath; 13, phosphorized steel wire belt; 14, water-blocking sheath; 15, water-blocking ointment; 16, reinforcing ring; 17, air hole; 18, fixing block; 19, reinforcing phosphorized steel wire. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figs. 1-3 The utility model provides a kind of technical solutions: a kind of layer-stranded outdoor optical cable protection mechanism, comprising:

[0023] Optical cable main body 1, the outer optical cable main body 1 is equipped with the loose tube 2 for wrapping protection to optical cable main body 1, loose tube 2 can provide a solid shell to optical cable core, can protect internal optical fiber from external physical impact, oppression and bending etc. Mechanical damage. This helps to prolong the service life and reliability of optical fiber, and has waterproof performance, can effectively prevent moisture penetration, so as to protect optical fiber from the influence of humid environment, avoid signal attenuation or optical fiber damage, the outer loose tube 2 is equipped with reinforcing layer 3 for supporting protection to optical cable main body 1, can strengthen the protection effect to optical cable core, strengthen the security of optical cable in the underground, the cavity between the inner side of reinforcing layer 3 and the outer surface of loose tube 2 is evenly equipped with cylindrical support block 4 for supporting and heat dissipation to optical cable main body 1, reduce support span to avoid the deformation condition of reinforcing layer 3 stress;

[0024] Optical cable outer sheath pipe 5, the outer surface of optical cable outer sheath pipe 5 is evenly equipped with medicament volatilization cavity 6 for medicament volatilization, medicament volatilization cavity 6 is used to place solid balm mixed with smell mouse repellent agent therein, reduce insect and mouse damage to optical cable in the underground, the port of medicament volatilization cavity 6 is integrally formed with fiber mesh layer 7 with volatilization hole, so that optical cable has good tensile resistance, avoid the phenomenon of optical cable core breakage due to large tension, the outer optical cable outer sheath pipe 5 is movably equipped with optical cable positioning ring 9 for adjusting and fixing position of optical cable when being embedded underground through evenly arranged annular groove 8, the position of optical cable is positioned and fixed after being embedded in pre-buried pit, and optical cable positioning ring 9 can be rotated and adjusted to fix the position according to the different installation positions.

[0025] The cable outer sheath pipe 5 is internally provided with a filling cavity 10, the inside of which is filled with a rat-proof agent 11 for burying underground to prevent rats from gnawing and wrapping the optical cable body 1, which can release the rat-proof agent 11 to kill rats when the rats gnaw the cable outer sheath pipe 5, and can achieve very good protection effect, effectively enhancing the safety of the optical cable underground, the inner side of the cable outer sheath pipe 5 is provided with a reinforcing sheath 12, and the inner cavity of the reinforcing sheath 12 is uniformly provided with a phosphorized steel wire belt 13, which has high tensile strength and can effectively resist external tension and pressure to prevent the optical cable from breaking due to excessive stress during installation or use, the inner side of the reinforcing sheath 12 is provided with a water-blocking sheath pipe 14, the inner cavity of the water-blocking sheath pipe 14 is filled with water-blocking ointment 15 for blocking water, the composition of the water-blocking ointment 15 usually mainly includes base oil (such as mineral oil), thickening agent, waterproof additive, supplemented by antioxidant, anticorrosive and filler, etc., the water-blocking ointment 15 plays a role of filling and sealing in the structure of the optical cable, effectively preventing water from penetrating into the optical fiber, in a high humidity or rainy environment, the water-blocking ointment can provide additional protection to ensure the performance of the optical cable is not affected by moisture, while effectively inhibiting the growth of mold and bacteria, preventing the growth of microorganisms inside the optical cable, and protecting the integrity and performance of the optical fiber.

[0026] The reinforcing ring 16 is provided between the cylindrical support blocks 4, and the reinforcing ring 16 is uniformly provided with air-permeable mesh holes 17, so that the cylindrical support blocks 4 can remain in place and be well supported, the annular groove 8 is integrally formed on the outside of the cable outer sheath pipe 5, and the cable positioning ring 9 is movably sleeved in the annular groove 8 to fix the position of the outdoor optical cable before pre-burying, and the outer surface of the cable positioning ring 9 is uniformly provided with fixing blocks 18 for positioning and fixing the optical cable after burying in the ground, thereby fixing the optical cable, the inner center of the optical cable body 1 is provided with a reinforcing phosphorized steel wire 19 for outwardly supporting the optical cable core to prevent extrusion contact, thereby ensuring the safety and reliability of the optical cable under various environmental conditions.

[0027] Specific, use, first, the outdoor cable is placed in the prepared pre-buried pit, and the outdoor cable is fixed on the fixed seat in the pre-buried pit through the movable cable positioning ring 9 in the annular groove 8, and the fixed block 18 is locked and fixed, the positioning and fixing of the outdoor cable in the pre-buried pit can be fixed, the position of the outdoor cable in the ground can always remain unchanged, the problem of position deviation and bending deformation of the outdoor cable buried in the ground due to the sinking of the soil can be avoided, then the soil is filled into the pre-buried pit and tamped, the phenomenon of the gap of the soil sinking in the rainy season and extruding the outdoor cable is avoided, when the outdoor cable is subjected to the rolling and extruding force generated by the passing of external vehicles, the span between the equidistantly arranged cylindrical support blocks 4 is shortened, the cylindrical support blocks 4 are uniformly stressed to support the reinforcing layer 3, the outdoor cable buried in the ground can be firmly supported, the deformation stability of the cable body 1 in the outdoor ground under the extrusion and rolling of external force can be effectively prevented, so that the uniform stress protection of the cable body 1 from the extrusion and rolling force can be achieved, and the service life and protection effect of the cable body 1 in the outdoor ground are further improved.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A protection mechanism for a layer-stranded outdoor optical cable, characterized by, Include: Optical cable body (1), the optical cable body (1) is externally provided with a loose tube (2) for wrapping and protecting the optical cable body (1), the outer surface of the loose tube (2) is provided with a reinforcing layer (3) for supporting and protecting the optical cable body (1) from pressure, and the cavity between the inner side of the reinforcing layer (3) and the outer surface of the loose tube (2) is uniformly provided with a cylindrical support block (4) for uniformly supporting and supporting the optical cable body (1) and dissipating heat. The outer surface of the optical cable outer sheath tube (5) is uniformly provided with a medicament volatilization cavity (6) for volatilizing medicament outward, the port of the medicament volatilization cavity (6) is integrally formed with a fiber mesh layer (7) with a volatilization hole, and the outer surface of the optical cable outer sheath tube (5) is movably provided with an optical cable positioning ring (9) for adjusting and fixing the position of the optical cable when buried underground through the uniformly arranged annular groove (8).

2. A protection mechanism for a layer-stranded outdoor optical cable according to claim 1, characterized in that: The optical cable outer sheath tube (5) is provided with a filling cavity (10), and the filling cavity (10) is filled with a rodent repellent (11) for wrapping the optical cable body (1) and preventing rodents from gnawing when buried underground.

3. A protection mechanism for a layer-stranded outdoor optical cable according to claim 1, characterized in that: The inner side of the optical cable outer sheath tube (5) is provided with a reinforcing sheath (12), and the inner cavity of the reinforcing sheath (12) is uniformly provided with a phosphated steel wire belt (13).

4. A protection mechanism for a layer-stranded outdoor optical cable according to claim 3, characterized in that: The inner side of the reinforcing sheath (12) is provided with a water blocking sheath tube (14), and the inner cavity of the water blocking sheath tube (14) is filled with a water blocking ointment (15) for blocking water.

5. A protection mechanism for a layer-stranded outdoor optical cable according to claim 1, characterized in that: The cylindrical support blocks (4) are provided with a reinforcing ring (16) penetrating therebetween, and the reinforcing ring (16) is uniformly provided with air permeable mesh holes (17).

6. A protection mechanism for a layer-stranded outdoor optical cable according to claim 1, characterized in that: The annular groove (8) is integrally formed on the outer surface of the optical cable outer sheath tube (5), and the optical cable positioning ring (9) is movably sleeved in the annular groove (8), and the outer surface of the optical cable positioning ring (9) is uniformly provided with a fixing block (18) for positioning and fixing the optical cable after being buried in the ground.

7. A protection mechanism for a layer-stranded outdoor optical cable according to claim 1, characterized in that: The inner center of the optical cable body (1) is provided with a reinforcing phosphated steel wire (19) for outwardly supporting the optical cable core and preventing extrusion contact.

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