Photoelectric isolation device and photoelectric isolation splicing system for optical fiber composite overhead ground wire

Abstract

A photoelectric isolation device and photoelectric isolation splicing system for an optical fiber composite overhead ground wire. The photoelectric isolation device for an optical fiber composite overhead ground wire comprises at least two insulating portions (20), each of which has an internal through hole for allowing an optical fiber (101) to pass therethrough, wherein a connecting portion (30) and a mounting portion are respectively provided at two opposite ends of each of the insulating portions (20) along the axis of the corresponding internal through hole; the insulating portions (20) are connected to a splice closure (10) by means of the connecting portions (30); each connecting portion (30) is configured for the sealed mounting of the optical fiber (101); and each mounting portion comprises a clamping member (40) and a mounting member (50), the clamping member (40) being configured for clamping an optical cable (103), one end of the mounting member (50) being in sealed connection with the clamping member (40), the other end of the mounting member (50) being in sealed connection with the corresponding insulating portion (20), the mounting member (50) comprising a cylindrical structure (51), which is configured such that an optical fiber unit (102) can be mounted therein in a sealed manner, the interior of the cylindrical structure (51) being in communication with the corresponding internal through hole, and the cylindrical structure (51) having an arc-shaped section.

Description

Optical fiber composite overhead ground wire optical-electric separation device and optical-electric separation splicing system

[0001] The present application claims priority to the Chinese patent application No. 202410790146.4, filed on June 19, 2024, and entitled "Optical fiber composite overhead ground wire optical-electric separation device and optical-electric separation splicing system", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of optical fiber composite overhead ground wire, in particular to an optical fiber composite overhead ground wire optical-electric separation device and optical-electric separation splicing system. BACKGROUND

[0003] The OPGW optical cable (optical fiber composite overhead ground wire) is generally grounded at each tower in the overhead line, and the matching OPGW joint box is also in a grounded state. With the requirements of energy saving of the overhead transmission line ground wire and the need of OPGW ice melting, the OPGW needs to be insulated and modified by using a segmented insulation method. An optical-electric separation device needs to be arranged at each insulation section of the OPGW, and the optical-electric separation device needs to realize insulation between the OPGW optical cables and the optical cables, and realize splicing and protection of the optical fibers.

[0004] The OPGW optical-electric separation device is usually modified on the basis of the OPGW joint box. As shown in FIG. 1, composite hollow insulators 2 are arranged at both sides of the joint box 1, and the OPGW optical fiber can pass through the hollow insulators 2 to realize optical fiber splicing in the box body, so that the OPGW and the OPGW are directly insulated, and the optical signal connection is realized.

[0005] However, in the prior art, the OPGW optical-electric separation device is prone to misoperation in the construction process, and the optical fiber stainless steel unit is extended into the hollow insulator 2 and extended into the joint box 1 from the inside of the hollow insulator 2, thereby easily causing the problem of insulation failure of the hollow insulator 2. SUMMARY

[0006] The main purpose of the present application is to provide an optical fiber composite overhead ground wire optical-electric separation device and optical-electric separation splicing system to solve the problem of insulation failure of the hollow insulator of the optical fiber composite overhead ground wire optical-electric separation device in the prior art.

[0007] In order to achieve the above object, the present application provides an optical fiber and optical cable separation device for optical fiber composite overhead ground line, comprising: a joint box having a receiving cavity and a threading opening in communication with the receiving cavity, the threading opening being used for optical fiber to pass through; at least two insulation parts having an internal through hole for the optical fiber to pass through, along the axis of the internal through hole, opposite ends of each insulation part are respectively provided with a connecting part and a mounting part, the insulation part is connected with the joint box through the connecting part, the connecting part is configured to seal the optical fiber; the mounting part comprises a clamping member and a mounting member, the clamping member is configured to clamp the optical cable, one end of the mounting member is sealingly connected with the clamping member, the other end of the mounting member is sealingly connected with the insulation part, the mounting member comprises a cylindrical structure configured to seal the optical fiber unit, the inside of the cylindrical structure is in communication with the internal through hole, and the cylindrical structure has an arc segment.

[0008] Further, the clamping member has a clamping channel in communication with the inside of the cylindrical structure, and the mounting member further comprises: a sealing member sealingly matched with part of the clamping channel, the sealing member being provided with a first through hole sealingly matched with the optical fiber unit; and a fixing member located in the cylindrical structure, the fixing member being connected with the clamping member and being used to press the sealing member in the first through hole.

[0009] Further, the clamping member comprises: a flange member sealingly connected with the cylindrical structure; two clamping members used for clamping the optical cable, each clamping member being connected to one side of the flange member away from the cylindrical structure; and a mounting cylinder connected with the flange member, the mounting cylinder being located in the cylindrical structure, the sealing member being located in the mounting cylinder and sealingly matched with the mounting cylinder, and the fixing member being connected with the mounting cylinder.

[0010] Further, the fixing member comprises: a connecting sleeve located on the outer periphery of the mounting cylinder, the connecting sleeve being threadedly connected with the mounting cylinder; and a pressing plate connected with the connecting sleeve, the pressing plate being located on one side of the mounting cylinder away from the flange member.

[0011] Further, the insulation part is sealingly connected with the connecting part, and the internal through hole of the insulation part is filled with an insulating sealing material.

[0012] Further, the insulation part is two, each insulation part is arranged obliquely relative to the joint box, and the two insulation parts are arranged in an eight-shaped manner.

[0013] Further, the connecting part comprises: a connecting main body having an assembly through hole in communication with the internal through hole, a first end of the connecting main body being sealingly connected with the insulation part, and a second end of the connecting main body being mounted in the joint box; and a sealing body sealingly matched with the assembly through hole, the sealing body being provided with a second through hole used for sealingly mounting the optical fiber.

[0014] Further, the connecting part further comprises a protection member having an installation through hole, one end of the protection member being provided in the second through hole and sealingly matched with the second through hole, and the other end of the protection member extending into the receiving cavity through the threading opening.

[0015] According to another aspect of the present application, the present application provides an optical fiber composite overhead ground wire photoelectric separation splicing system, comprising: at least two optical cables, comprising at least one optical fiber unit for transmitting signals, the optical fiber unit comprising a steel tube and a plurality of optical fibers located in the steel tube; the photoelectric separation device for the optical fiber composite overhead ground wire described above, the at least two optical cables are arranged corresponding to the at least two insulation parts, and the optical fibers of the at least two optical cables are spliced in the joint box.

[0016] Further, the photoelectric separation device for the optical fiber composite overhead ground wire further comprises a humidity sensor and / or an inclination sensor located in the accommodation cavity, and at least one of the humidity sensor and the inclination sensor is connected with one of the plurality of optical fibers.

[0017] By means of the technical scheme of the present application, the cylindrical structure has an arc segment, even if the cylindrical structure is bent, when the optical fiber unit with the steel tube is inserted into the cylindrical structure, the bending part (arc segment) of the cylindrical structure can block the rigid steel tube, while the bendable optical fiber can pass through the arc segment of the cylindrical structure and enter the internal through hole of the insulation part, that is, the arc segment can only pass through the optical fiber, so that the steel tube of the optical fiber unit can be prevented from being mistakenly inserted into the internal through hole of the insulation part, thereby avoiding causing internal short circuit of the insulation part, and avoiding the problem of insulation failure of the insulation part, and the construction and installation can be prevented from being mistaken. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof, explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0019] Fig. 1 shows a structure schematic diagram of a photoelectric separation device for an optical fiber composite overhead ground wire in the prior art;

[0020] Fig. 2 shows a structure schematic diagram of an embodiment of a photoelectric separation device for an optical fiber composite overhead ground wire according to the present application;

[0021] Fig. 3 shows a partial enlarged view of the photoelectric separation device for the optical fiber composite overhead ground wire of Fig. 2;

[0022] Fig. 4 shows another partial enlarged view of the photoelectric separation device for the optical fiber composite overhead ground wire of Fig. 2;

[0023] Fig. 5 shows a sectional view of the cylindrical structure of the photoelectric separation device for the optical fiber composite overhead ground wire of Fig. 2;

[0024] Fig. 6 shows a structure schematic diagram of the cylindrical structure of the photoelectric separation device for the optical fiber composite overhead ground wire of Fig. 2;

[0025] Fig. 7 shows a structural schematic view of a clamping member of the optical fiber and power separation device for fiber composite overhead ground wire of Fig. 2 from one angle;

[0026] Fig. 8 shows a structural schematic view of the clamping member of Fig. 7 from another angle;

[0027] Fig. 9 shows an installation schematic view of the optical fiber and power separation splicing system for fiber composite overhead ground wire of the present application.

[0028] Among the above figures, the following reference signs are included:

[0029] 5, tower; 101, optical fiber; 102, optical fiber unit; 103, optical cable; 10, joint box; 20, insulating part; 30, connecting part; 31, connecting body; 32, sealing body; 33, protection piece; 40, clamping member; 41, flange piece; 42, clamping piece; 43, mounting cylinder; 50, mounting member; 51, cylindrical structure; 52, sealing piece; 53, fixing piece; 531, connecting sleeve; 532, pressing plate. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] As shown in Figs. 2 to 9, the embodiments of the present application provide an optical fiber and power separation device for fiber composite overhead ground wire. The optical fiber and power separation device for fiber composite overhead ground wire comprises a joint box 10 and at least two insulating parts 20. The joint box 10 has a receiving cavity and a threading opening in communication with the receiving cavity, and the threading opening is used for the optical fiber 101 to pass through; the at least two insulating parts 20 have an internal through hole for the optical fiber 101 to pass through, and along the axis of the internal through hole, opposite ends of each insulating part 20 are respectively provided with a connecting part 30 and a mounting part, the insulating part 20 is connected with the joint box 10 through the connecting part 30, and the connecting part 30 is configured to seal and mount the optical fiber 101; the mounting part comprises a clamping member 40 and a mounting member 50, the clamping member 40 is configured to clamp the optical cable 103, one end of the mounting member 50 is sealingly connected with the clamping member 40, the other end of the mounting member 50 is sealingly connected with the insulating part 20, and the mounting member 50 comprises a cylindrical structure 51 configured to seal and mount the optical fiber unit 102, the inside of the cylindrical structure 51 is in communication with the internal through hole, and the cylindrical structure 51 has an arc segment.

[0032] In the technical solution, the cylindrical structure 51 has an arc-shaped section, so that even if the cylindrical structure 51 is bent, when the optical fiber unit 102 with a steel pipe is inserted into the cylindrical structure 51, the bent part (arc-shaped section) of the cylindrical structure 51 can block the rigid steel pipe, and the bendable optical fiber can pass through the arc-shaped section of the cylindrical structure 51 and enter the internal through hole of the insulation part 20, that is, only the optical fiber can pass through the arc-shaped section, so that the steel pipe of the optical fiber unit 102 cannot be mistakenly inserted into the internal through hole of the insulation part 20, thereby avoiding internal short circuit of the insulation part 20 and avoiding insulation failure of the insulation part 20, and the construction and installation can be prevented from being mistaken.

[0033] Specifically, in the embodiment of the present application, the insulation part 20 includes a glass fiber core rod and a silicone rubber sheath located on the outer periphery of the glass fiber core rod, and the glass fiber core rod is provided with the internal through hole. In this way, the insulation effect can be achieved.

[0034] As shown in FIG. 3, in the embodiment of the present application, the clamping member 40 has a clamping channel in communication with the inside of the cylindrical structure 51, and the mounting member 50 further includes a sealing piece 52 and a fixing piece 53. The sealing piece 52 is in sealing cooperation with part of the clamping channel, and the sealing piece 52 is provided with a first through hole in sealing cooperation with the optical fiber unit 102; the fixing piece 53 is located in the cylindrical structure 51, and the fixing piece 53 is connected with the clamping member 40, and the fixing piece 53 is used to press the sealing piece 52 in the first through hole.

[0035] Through the above arrangement, the clamping channel can clamp and fix the optical cable 103, and through the arrangement of the sealing piece 52 and the fixing piece 53, water vapor or dust can be prevented from entering the inside of the cylindrical structure 51 through the clamping channel, thereby avoiding affecting the signal transmission of the optical fiber.

[0036] As shown in FIG. 3, FIG. 7 and FIG. 8, in the embodiment of the present application, the clamping member 40 includes a flange 41, two clamping pieces 42 and a mounting cylinder 43. The flange 41 is sealingly connected with the cylindrical structure 51; the two clamping pieces 42 are used to clamp the optical cable 103, and each clamping piece 42 is connected to the side of the flange 41 away from the cylindrical structure 51; the mounting cylinder 43 is connected with the flange 41, and the mounting cylinder 43 is located in the cylindrical structure 51; the sealing piece 52 is located in the mounting cylinder 43 and sealingly cooperates with the mounting cylinder 43; and the fixing piece 53 is connected with the mounting cylinder 43.

[0037] Through the above arrangement, the flange 41 is sealingly connected with the cylindrical structure 51, so that the clamping member 40 can be fixed on the mounting member 50, and water vapor or dust can be prevented from entering the inside of the cylindrical structure 51 through the gap between the flange 41 and the cylindrical structure 51, thereby avoiding affecting the signal transmission of the optical fiber.

[0038] Specifically, as shown in FIG. 3, FIG. 5 and FIG. 6, in the embodiment of the present application, the cylindrical structure 51 comprises a sleeve and a flange plate connected with the sleeve, a sealing ring is arranged between the flange plate and the flange 41, and the flange plate and the flange 41 are connected through bolts to realize the sealing connection between the flange 41 and the cylindrical structure 51. The flange 41 is also a flange plate.

[0039] Specifically, in the embodiment of the present application, one of the two clamping pieces 42, the flange 41 and the mounting cylinder 43 are integrally formed, and the other of the two clamping pieces 42 is connected on the one clamping piece 42 through bolts, so that the two clamping pieces 42 can tightly hold the optical cable 103, and the above structure is convenient for processing.

[0040] Specifically, as shown in FIG. 3, in the embodiment of the present application, the end of the cylindrical structure 51 is connected with the outer periphery of the glass fiber core rod, and part of the silicone rubber sheath is connected with the outer periphery of the end of the cylindrical structure 51 to increase the connection stability between the cylindrical structure 51 and the insulation part 20.

[0041] Specifically, as shown in FIG. 3, in the embodiment of the present application, the sealing member 52 is a conical rubber member, the mounting cylinder 43 has a conical hole, the inner diameter of the conical hole gradually increases from the clamping piece 42 to the cylindrical structure 51, and the conical rubber member is sealingly matched with the conical hole. In this way, the sealing effect can be improved.

[0042] As shown in FIG. 3, in the embodiment of the present application, the fixing member 53 comprises a connecting sleeve 531 and a pressing plate 532. The connecting sleeve 531 is located on the outer periphery of the mounting cylinder 43 and is threadedly connected with the mounting cylinder 43, and the pressing plate 532 is connected with the connecting sleeve 531 and is located on the side of the mounting cylinder 43 away from the flange 41. In this way, the connection between the fixing member 53 and the mounting cylinder 43 can be realized, and the sealing member 52 can be pressed in the mounting cylinder 43 by the pressing plate 532 to prevent the sealing member 52 from falling off, thereby avoiding sealing failure.

[0043] Specifically, as shown in FIG. 3, in the embodiment of the present application, the mounting member 50 further comprises an anti-abrasion member located between the sealing member 52 and the pressing plate 532 to prevent the fixing member 53 from damaging the sealing member 52 during installation. The anti-abrasion member is preferably an anti-abrasion gasket, and the anti-abrasion gasket is provided with a relief through hole.

[0044] The internal through hole needs to pass through the optical fiber from the end of the insulation part 20 connected with the mounting part to the end of the insulation part 20 connected with the connecting part 30, and the creepage distance of the internal through hole is much smaller than that of the silicone rubber sheath, thereby easily leading to internal breakdown of the insulation part 20. Therefore, as shown in FIG. 4, in the embodiment of the present application, the insulation part 20 and the connecting part 30 are sealingly connected, and the internal through hole of the insulation part 20 is filled with an insulating sealing material.

[0045] Through the above arrangement, after the internal through hole passes through the optical fiber, the insulating sealing material is injected, which not only can well protect the optical fiber, but also can improve the internal insulation performance of the insulation part 20, so as to prevent the problem of internal breakdown of the insulation part 20.

[0046] Preferably, in the embodiment of the application, the insulating sealing material is a fiber paste, and the fiber paste has good viscosity, so that the fiber paste can be prevented from overflowing from the protection piece 33.

[0047] In the prior art, the hollow insulator 2 is usually arranged horizontally, so that once the sealing fails, there is a risk of rainwater backflow. Therefore, as shown in FIG. 2, in the embodiment of the application, the insulation part 20 is two, and each insulation part 20 is arranged obliquely relative to the joint box 10, and the two insulation parts 20 are arranged in a m-shaped manner.

[0048] In the above technical solution, by arranging the two insulation parts 20 in an m-shaped manner, the problem of rainwater backflow at the optical fiber unit 102 of the optical cable 103 can be avoided, the problem of affecting the optical fiber signal transmission due to rainwater backflow into the interior of the insulation part 20 can be avoided, and the insulation distance between the two optical cables 103 can be maintained.

[0049] As shown in FIG. 4, in the embodiment of the application, the connecting part 30 includes a connecting body 31 and a sealing body 32. The connecting body 31 has an assembly through hole in communication with the internal through hole, a first end of the connecting body 31 is sealingly connected with the insulation part 20, and a second end of the connecting body 31 is installed on the joint box 10; the sealing body 32 is sealingly matched with the assembly through hole, and the sealing body 32 is provided with a second through hole for sealingly installing the optical fiber 101.

[0050] Through the above arrangement, not only the optical fiber 101 can pass through, but also the insulation part 20 can be fixed on the joint box 10 through the connecting part 30, and water vapor or dust can be prevented from entering the interior of the insulation part 20 through the assembly through hole, so as to avoid affecting the signal transmission of the optical fiber.

[0051] Specifically, as shown in FIG. 2, in the embodiment of the application, the optical fiber composite overhead ground wire optical-electric separation device further includes a mounting frame connected with the joint box 10, and each connecting part 30 is connected with the mounting frame, so that the connecting part 30 is installed on the joint box 10 through the mounting frame. The mounting frame includes three mounting segments connected and arranged at an angle to form a V-shaped structure, so that the two insulation parts 20 can be better arranged in an m-shaped manner. The three mounting segments are each provided with a mounting interface for cooperating with the connecting body 31. Preferably, as shown in FIG. 2, in the embodiment, the connecting part 30 is two, and the two connecting parts 30 are installed on two of the three mounting segments.

[0052] Preferably, in the embodiment of the present application, the sealing body 32 is a tapered rubber body, the assembly through hole on the second end of the connecting body 31 is tapered, and the outer diameter of the tapered rubber body gradually increases from the insulating part 20 to the connecting part 30. In this way, the sealing effect can be improved.

[0053] Preferably, in the embodiment of the present application, the connecting body 31 and / or the cylindrical structure 51 are made of aluminum material.

[0054] As shown in FIG. 4, in the embodiment of the present application, the connecting part 30 further comprises a protection piece 33 with a mounting through hole, one end of the protection piece 33 is arranged in the second through hole and sealingly matched with the second through hole, and the other end of the protection piece 33 extends into the accommodating cavity through the threading port. In this way, the protection piece 33 can protect the optical fiber 101 to avoid the tapered rubber body from pressing the optical fiber 101.

[0055] Preferably, in the embodiment of the present application, the protection piece 33 is a protection tube.

[0056] As shown in FIG. 8, the embodiment of the present application provides an optical fiber composite overhead ground wire optical-electric separation splicing system, which comprises: at least two optical cables 103, at least one optical fiber unit 102 for transmitting signals, the optical fiber unit 102 comprising a steel pipe and a plurality of optical fibers 101 arranged in the steel pipe; the optical-electric separation device for optical fiber composite overhead ground wire described above, at least two optical cables 103 are arranged corresponding to at least two insulating parts 20, and the optical fibers 101 of the at least two optical cables 103 are spliced in the joint box 10. The optical-electric separation splicing system for optical fiber composite overhead ground wire has all the advantages of the optical-electric separation device for optical fiber composite overhead ground wire, which will not be repeated here.

[0057] Preferably, the steel pipe is made of stainless steel material.

[0058] In the prior art, the monitoring components of the optical-electric separation device for optical fiber composite overhead ground wire are generally active sensors, which need to be connected to an external power supply and transmit sensing data through a public network. However, if the optical-electric separation device for optical fiber composite overhead ground wire is installed in a heavy ice area in the wild and is not in the public network signal coverage area, it is difficult to monitor the state of the joint box. Moreover, the optical fiber composite overhead ground wire is in a high-voltage state when melting ice, and if the sensor is connected to an external power supply, there will be a safety risk.

[0059] Therefore, in the embodiment of the present application, the optical-electric separation device for optical fiber composite overhead ground wire further comprises a humidity sensor and / or an inclination sensor arranged in the accommodating cavity, and at least one of the humidity sensor and the inclination sensor is connected to one of the plurality of optical fibers 101. In this way, the state of the joint box 10 can be monitored by using the optical fiber inside the joint box 10 in the form of optical fiber sensing to monitor the inclination of the joint box 10 and the humidity inside the joint box, thereby avoiding the external power supply and further reducing the safety risk.

[0060] It should be noted that, compared with the prior art in which the optical fiber composite overhead ground wire photoelectric separation device is installed on the tower 5 through the support insulator, in the embodiment, the joint box 10 is directly installed on the tower 5, so that the support insulator can be reduced, and the weight of the optical fiber composite overhead ground wire photoelectric separation device can be reduced, and then the installation platform (support frame 3) is not needed to be built to reduce the construction difficulty.

[0061] It should be noted that, as shown in FIG. 9, in the embodiment of the application, it is necessary to maintain the insulation between the two optical fiber composite overhead ground wires, and also to ensure the insulation between the two optical fiber composite overhead ground wires and the tower 5, therefore, the composite insulator of the photoelectric separation device and the charged part of the joint box have an insulation distance between them and the tower 5, and the insulation distance should meet the OPGW ice melting voltage requirement.

[0062] It should be noted that the specific installation steps of the optical fiber composite overhead ground wire are as follows:

[0063] First, the optical fiber composite overhead ground wire is stripped, the stripping length is greater than 1.5 m, the steel pipe is stripped at the aluminum-coated steel wire end face about 40-50 mm, and the optical fiber is exposed.

[0064] Second, the optical fiber is passed through the clamping channel of the clamping member and fixed in the clamping member.

[0065] Third, the tapered rubber part on the steel pipe sleeve is tightened, and the sealing is realized by the extrusion of the rubber of the fixing part 53.

[0066] Fourth, the sealing ring is placed between the flange plate and the flange part 41, the optical fiber is passed through the internal through hole of the insulation part 20, and the flange plate and the flange part 41 are fixed by bolt connection.

[0067] Fifth, the optical fiber is sleeved into the protection part 33, and the protection part is fixed by the tapered rubber body and the sealing nut at the connection part 30.

[0068] Sixth, the optical fiber is fused and fixed, and the optical fiber of the sensor also needs to be fused.

[0069] Seventh, the O-ring is placed at the sealing position of the joint box, and the joint box is packaged by the bolt.

[0070] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects: by making the cylindrical structure have an arc-shaped section, even if the cylindrical structure is bent, when the optical fiber unit with a steel pipe is inserted into the cylindrical structure, the bending part (arc-shaped section) of the cylindrical structure can block the rigid steel pipe, and the bendable optical fiber can pass through the arc-shaped section of the cylindrical structure and enter the internal through hole of the insulation part, that is, the arc-shaped section can only pass through the optical fiber, so that the steel pipe of the optical fiber unit can be prevented from being mistakenly inserted into the internal through hole of the insulation part, thereby avoiding causing internal short circuit of the insulation part, avoiding the problem of insulation failure of the insulation part, and also playing a mistake-proofing role in construction and installation.

[0071] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A photoelectric separation device for fiber optic composite overhead ground wires, characterized in that, include: The junction box (10) has a receiving cavity and a through-hole communicating with the receiving cavity, the through-hole being for the optical fiber (101) to pass through; At least two insulating portions (20) have internal through holes for the optical fiber (101) to pass through. Along the axis of the internal through holes, each insulating portion (20) has a connecting portion (30) and a mounting portion at opposite ends. The insulating portion (20) is connected to the junction box (10) through the connecting portion (30). The connecting portion (30) is configured to seal and mount the optical fiber (101). The mounting portion includes a clamping member (40) and a mounting member (50). The clamping member (40) is configured to clamp an optical cable (103). One end of the mounting member (50) is sealed to the clamping member (40), and the other end of the mounting member (50) is sealed to the insulating portion (20). The mounting member (50) includes a cylindrical structure (51) configured to seal and mount an optical fiber unit (102). The interior of the cylindrical structure (51) communicates with the internal through hole. The cylindrical structure (51) has an arc-shaped segment. The clamping member (40) has a clamping channel communicating with the interior of the cylindrical structure (51), and the mounting member (50) further includes: A sealing element (52) is provided to seal with part of the clamping channel, and the sealing element (52) is provided to seal with a first through hole that seals with the optical fiber unit (102); The fixing member (53) is located inside the cylindrical structure (51), and the fixing member (53) is connected to the clamping member (40). The fixing member (53) is used to press the sealing member (52) into the first through hole.

2. The photoelectric separation device for fiber optic composite overhead ground wire according to claim 1, characterized in that, The clamping member (40) includes: Flange (41) is sealed to the cylindrical structure (51); Two clamping members (42) are used to clamp the optical cable (103), and each clamping member (42) is connected to the side of the flange (41) opposite to the cylindrical structure (51); The mounting cylinder (43) is connected to the flange (41). The mounting cylinder (43) is located inside the cylindrical structure (51). The sealing element (52) is located inside the mounting cylinder (43) and is sealed to the mounting cylinder (43). The fixing element (53) is connected to the mounting cylinder (43).

3. The photoelectric separation device for fiber optic composite overhead ground wire according to claim 2, characterized in that, The fastener (53) includes: A connecting sleeve (531) is located on the outer periphery of the mounting cylinder (43), and the connecting sleeve (531) is threadedly connected to the mounting cylinder (43); A pressure plate (532) is connected to the connecting sleeve (531), and the pressure plate (532) is located on the side of the mounting cylinder (43) away from the flange (41).

4. The photoelectric separation device for fiber optic composite overhead ground wire according to any one of claims 1 to 3, characterized in that, The insulating part (20) is sealed to the connecting part (30), and the internal through hole of the insulating part (20) is filled with insulating and sealing material.

5. The photoelectric separation device for fiber optic composite overhead ground wire according to any one of claims 1 to 3, characterized in that, There are two insulating parts (20), each of which is inclined relative to the junction box (10), and the two insulating parts (20) are arranged in a figure-eight shape.

6. The photoelectric separation device for fiber optic composite overhead ground wire according to any one of claims 1 to 3, characterized in that, The connecting part (30) includes: The connecting body (31) has an assembly through hole communicating with the internal through hole. The first end of the connecting body (31) is sealed to the insulating part (20), and the second end of the connecting body (31) is installed in the junction box (10). The sealing body (32) is sealed to fit with the assembly through hole, and the sealing body (32) is provided with a second through hole for sealing and installing the optical fiber (101).

7. The photoelectric separation device for fiber optic composite overhead ground wire according to claim 6, characterized in that, The connecting part (30) further includes a protective member (33) with a mounting through hole. One end of the protective member (33) passes through the second through hole and is sealed to the second through hole. The other end of the protective member (33) extends into the receiving cavity through the threading port.

8. A fiber optic composite overhead ground wire optoelectronic separation and splicing system, characterized in that, include: At least two optical cables (103) include at least one optical fiber unit (102) for transmitting signals, the optical fiber unit (102) including a steel tube and a plurality of optical fibers (101) located inside the steel tube; According to any one of claims 1 to 7, the optical fiber composite overhead ground wire photoelectric separation device is provided with at least two optical cables (103) corresponding to at least two insulation parts (20), and the optical fibers (101) of at least two optical cables (103) are spliced ​​in the junction box (10).

9. The optical fiber composite overhead ground wire photoelectric separation and splicing system according to claim 8, characterized in that, The optical fiber composite overhead ground wire photoelectric separation device further includes a humidity sensor and / or tilt sensor located in the accommodating cavity, at least one of the humidity sensor and the tilt sensor being connected to one of the plurality of optical fibers (101).

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