Large-pipe-diameter optical fiber composite overhead ground wire

Abstract

The utility model discloses a large-pipe-diameter optical fiber composite overhead ground wire, which particularly relates to the technical field of overhead ground wires and comprises a ground wire main body. The ground wire main body comprises a stainless steel tube, an optical fiber is arranged in the stainless steel tube, and a stranded wire layer is arranged outside the stainless steel tube; the stranded wire layer comprises a plurality of aluminum-clad steel wires, the plurality of aluminum-clad steel wires are spirally wound outside the stainless steel tube, the diameter of the stainless steel tube is greater than 5mm, and a plurality of groups of protective parts for avoiding impact damage are arranged outside the ground wire main body. According to the utility model, the aluminum-clad steel wires are processed into the stranded wire layer, so that the mechanical property, the electrical property and the electric shock resistance of the ground wire main body can be improved, and the excess length of the optical fiber can be ensured to be large enough by means of the stainless steel tube with the diameter greater than 5mm, thereby meeting the requirements of customers on large optical fiber core number and low unit weight; and the capacity expansion of communication can be realized without increasing the load of the existing line, so that no extra load is caused to an iron tower or a pole.

Description

TECHNICAL FIELD

[0001] The utility model relates to overhead ground wire technical field more specifically, it is a kind of large pipe diameter optical fiber composite overhead ground wire. BACKGROUND

[0002] Optical fiber composite overhead ground wire is a kind of power communication line equipment that organically combines optical fiber unit and overhead ground wire together, and the optical fiber composite overhead ground wire is to place optical fiber unit into overhead ground wire, so that optical cable and ground wire are organically combined together.The structure design aims to realize the transmission of audio, video, data and other information under the premise of guaranteeing the original electrical and mechanical properties of overhead ground wire, and OPGW has been widely used as a kind of ideal communication means in power system.It not only can meet the communication needs of power system, but also can improve the reliability and safety of power system, and optical fiber composite overhead ground wire (OPGW) is a kind of power communication line equipment integrating communication and grounding functions, which has wide application prospect and important technical value.

[0003] The traditional optical fiber composite overhead ground wire currently used in China mainly includes two structures, 1: central tube type OPGW, 1+6 structure, i.e.the center-optical unit, optical unit and outer strand layer are six metal wires;2: traditional layer-stranded optical fiber composite overhead ground wire, mainly 1+6+12, i.e.the inner strand layer formed by centering the strengthening member and the optical unit and multiple electrical units outside the centering strengthening member, and the outer strand layer formed by multiple second conductive units stranded outside the inner strand layer, and the electrical unit is generally aluminum-clad steel wire or aluminum alloy wire;the so-called old line communication expansion is to replace the old OPGW optical cable without replacing the existing iron tower or pole, to realize large communication capacity.The traditional OPGW optical cable will increase the outer diameter and unit weight of the optical cable while realizing the increase of the core number, which may exceed the bearing capacity of the pole tower, resulting in unstable structure of the pole tower and collapse. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a large pipe diameter optical fiber composite overhead ground wire, which is processed into a strand layer by aluminum-clad steel wire, can improve the mechanical properties, electrical properties and electric shock resistance of the ground wire main body, and at the same time, by means of the stainless steel pipe with a diameter greater than 5mm, the excess length of the optical fiber can be ensured to be large enough, so that the requirements of customers for large optical fiber core number and low unit weight can be met, and the expansion of communication can be realized without increasing the burden of existing line, so that the iron tower or pole is not caused additional burden, to solve the problems in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a large pipe diameter optical fiber composite overhead ground wire, comprising a ground wire main body;

[0006] The ground wire body comprises a stainless steel pipe, 132 optical fibers are arranged inside the stainless steel pipe, and a stranded wire layer is arranged outside the stainless steel pipe.

[0007] The stranded wire layer comprises a plurality of aluminum-coated steel wires, and the plurality of aluminum-coated steel wires are spirally wound outside the stainless steel pipe.

[0008] In a preferred embodiment, the diameter of the stainless steel pipe is greater than 5 mm.

[0009] In a preferred embodiment, a plurality of protection pieces for avoiding impact damage are arranged outside the ground wire body.

[0010] Each group of protection pieces comprises two top rings and two bottom rings, the two top rings are arranged at the top of the two bottom rings, respectively, and the top ring and the bottom end are sleeved at the top and the bottom of the ground wire body, respectively, a plurality of top columns are arranged between the two top rings, and a plurality of bottom columns are arranged between the two bottom rings.

[0011] In a preferred embodiment, the top ring is provided with an assembly plate at the bottom of each end, a T-shaped assembly hole is formed in the top of the assembly plate, a fastening bolt is arranged in the assembly hole, and the top end and the bottom end of the fastening bolt extend to the top and the bottom of the assembly plate, respectively.

[0012] In a preferred embodiment, a ring groove is formed in one side of the assembly hole at the top end of the assembly plate, the ring groove is in communication with the assembly hole, a fixing ring is arranged in the ring groove, and the fixing ring is sleeved outside the fastening bolt.

[0013] In a preferred embodiment, a fixing plate is arranged at the top end of the bottom ring and close to one side of the assembly plate, a fastening groove is formed in the top of the fixing plate, the bottom end of the fastening bolt extends to the inside of the fastening groove, and the fastening bolt is threadedly connected with the inner wall of the fastening groove outside the fastening bolt.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. The aluminum-coated steel wires are processed into the stranded wire layer, the mechanical properties, the electrical properties and the electric shock resistance of the ground wire body are improved, the excess length of the optical fibers is large enough by virtue of the stainless steel pipe with a diameter greater than 5 mm, the requirements of the customer for large optical fiber core number and low unit weight can be met, the communication capacity can be expanded without increasing the burden of the existing line, and the additional burden on the iron tower or the pole is avoided.

[0016] 2. The fastening bolt is fixed to the assembly plate by the cooperation of the ring groove and the fixing ring, the fastening bolt and the assembly plate are integrated, the situation that the fastening bolt falls off during the operation is avoided, and the stability of the operation of the fastening bolt by the worker is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the top ring of the utility model Figure 1 A part enlarged view of the middle A part;

[0019] Figure 3 It is the top ring main view of the utility model;

[0020] Figure 4 It is the top ring explosion view of the utility model;

[0021] Figure 5 It is the assembly plate sectional view of the utility model.

[0022] The figure mark is: 1, stainless steel pipe;2, optical fiber;3, aluminum clad steel wire;4, top ring;5, bottom ring;6, top column;7, bottom column;8, assembly plate;9, assembly hole;10, fastening bolt;11, ring groove;12, fixed ring;13, fixed plate;14, fastening groove. Specific implementation

[0023] The technical scheme 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] With reference to the drawings in the description Figures 1-5 The utility model provides a kind of large pipe diameter optical fiber composite overhead ground wire, including ground wire main body;

[0025] As Figure 1 Indicated, the ground wire main body includes stainless steel pipe 1, 132 optical fibers 2 are provided in the stainless steel pipe 1, and the stainless steel pipe 1 is provided with stranding layer outside;The stranding layer includes multiple aluminum clad steel wires 3, and the multiple aluminum clad steel wires 3 are spirally wound outside the stainless steel pipe 1, and the diameter of the stainless steel pipe 1 is greater than 5mm.

[0026] By using aluminum clad steel wire 3 with high mechanical strength and strong electric shock resistance to process into stranding layer, the mechanical properties, electrical properties and electric shock resistance of the ground wire main body can be improved, and at the same time, by using stainless steel pipe 1 with diameter greater than 5mm, the excess length of optical fiber 2 can be ensured to be large enough, so that the requirements of customers for large optical fiber 2 core number and low unit weight can be met, and the communication capacity can be expanded without increasing the burden of existing line, so that no additional burden is caused to the tower or pole.

[0027] In order to avoid impact damage to the ground wire body, as shown in Figure 3 and 4 The ground wire body is externally provided with a plurality of sets of protective members for avoiding impact damage; each set of protective members comprises two top rings 4 and two bottom rings 5, the two top rings 4 are respectively arranged at the top of the two bottom rings 5, and the top rings 4 and the bottom rings 5 are respectively sleeved at the top and the bottom of the ground wire body, a plurality of top columns 6 are arranged between the two top rings 4, a plurality of bottom columns 7 are arranged between the two bottom rings 5, the top of the ground wire body is shielded by the plurality of top columns 6 between the two top rings 4, and the bottom of the ground wire body is shielded by the plurality of bottom columns 7 between the two bottom rings 5, so as to slow down the impact and avoid the impact directly acting on the outside of the ground wire body to cause damage, thereby ensuring the use performance of the ground wire body and prolonging the service life of the ground wire body.

[0028] In order to facilitate the assembly of the top ring 4 and the bottom ring 5, as shown in Figure 4 and 5 The bottom of the two ends of the top ring 4 is provided with an assembly plate 8, the top of the assembly plate 8 is provided with an assembly hole 9 with a T-shaped cross section, the inside of the assembly hole 9 is provided with a fastening bolt 10, the top end and the bottom end of the fastening bolt 10 extend to the top and the bottom of the assembly plate 8 respectively, the fastening bolt 10 is installed and fixed through the assembly hole 9, which facilitates the operation of the fastening bolt 10 and the fixed plate 13, because the top end of the assembly plate 8 is provided with a ring groove 11 on the side corresponding to the assembly hole 9, and the ring groove 11 is in communication with the assembly hole 9, the inside of the ring groove 11 is provided with a fixed ring 12, the fixed ring 12 is sleeved outside the fastening bolt 10, so that the fixed ring 12 cooperates with the ring groove 11 to limit and fix the fastening bolt 10 on the assembly plate 8, so as to integrate the fastening bolt 10 and the assembly plate 8, avoid the separation of the fastening bolt 10 and the assembly plate 8 during operation, ensure the stability of the assembly of the protective member by the worker, and because the bottom of the assembly plate 8 is provided with a fixed plate 13, the fixed plate 13 is arranged at the top of the bottom ring 5 and close to the side of the assembly plate 8, the top of the fixed plate 13 is provided with a fastening groove 14, the bottom end of the fastening bolt 10 extends to the inside of the fastening groove 14, the outside of the fastening bolt 10 is threadedly connected with the inner wall of the fastening groove 14, so that the worker can rotate the fastening bolt 10 to the inside of the fastening groove 14, and then realize the integration of the assembly plate 8 and the fixed plate 13 through the threaded connection of the fastening bolt 10 and the fastening groove 14, and achieve the effect of assembling the top ring 4 and the bottom ring 5 to the outside of the ground wire body for protection, and realize the shielding and protection effect of the ground wire body.

[0029] Finally: the above only for preferred embodiments of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A large diameter fiber optic composite overhead ground wire characterized by: The utility model provides a ground wire body, which comprises a ground wire body; The ground wire body comprises a stainless steel pipe (1) internally provided with 132 optical fibers (2) and externally provided with a stranded wire layer; The stranded wire layer comprises a plurality of aluminum-coated steel wires (3) spirally wound outside the stainless steel pipe (1).

2. The large-bore fiber optic composite overhead ground wire of claim 1, wherein: The diameter of the stainless steel pipe (1) is greater than 5 mm.

3. The large-bore fiber optic composite overhead ground wire of claim 1, wherein: The ground wire body is externally provided with a plurality of groups of protective members for avoiding impact damage; Each group of protective members comprises two top rings (4) and two bottom rings (5), the two top rings (4) are respectively arranged at the top of the two bottom rings (5), the top ring (4) and the bottom ring (5) are respectively sleeved at the top and the bottom of the ground wire body, a plurality of top columns (6) are arranged between the two top rings (4) in a spaced manner, and a plurality of bottom columns (7) are arranged between the two bottom rings (5) in a spaced manner.

4. The large-bore fiber optic composite overhead ground wire of claim 3, wherein: The bottom of the two ends of the top ring (4) is provided with an assembly plate (8), the top of the assembly plate (8) is provided with an assembly hole (9) with a T-shaped cross section, the assembly hole (9) is internally provided with a fastening bolt (10), and the top end and the bottom end of the fastening bolt (10) extend to the top and the bottom of the assembly plate (8), respectively.

5. The large-bore fiber optic composite overhead ground wire of claim 4, wherein: The side of the assembly plate (8) corresponding to the assembly hole (9) is provided with a ring groove (11) in communication with the assembly hole (9), and the ring groove (11) is internally provided with a fixing ring (12) sleeved outside the fastening bolt (10).

6. The large-bore fiber optic composite overhead ground wire of claim 4, wherein: The bottom of the assembly plate (8) is provided with a fixing plate (13) mounted on one side of the top end of the bottom ring (5) close to the assembly plate (8), the top of the fixing plate (13) is provided with a fastening groove (14), the bottom end of the fastening bolt (10) extends to the inside of the fastening groove (14), and the outside of the fastening bolt (10) is in threaded connection with the inner wall of the fastening groove (14).

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