Composite overhead crosslinked polyethylene insulated cable

Abstract

The application relates to the technical field of cables, and discloses a composite overhead cross-linked polyethylene insulated cable which comprises a wire slot, a fastening ring, a sealing groove body, an extension arm assembly and a joint frame body, the wire slot is arranged on an insulation layer and a filler, an optical fiber is arranged in the wire slot, the sealing groove body is fixedly arranged in the wire slot, the fastening ring is fixedly connected to the insulation layer, the opening is fixedly connected to the edge of the sealing groove body, the extension arm assembly is arranged on the side of the optical fiber away from the sealing groove body, the extension arm assembly is detachably connected to the optical fiber, the extension arm assembly is used for traction of the optical fiber, the joint frame body is fixedly connected to an electric core, the joint frame body is fixedly connected to the fastening ring, the joint frame body is fixedly connected to the sealing groove body, and the joint frame body is used for connection with a power transmission line. Through the technical scheme, the problem that the optical fiber of the cable composed of the optical fiber and the electric core is easily interfered by the cable at the joint is solved.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and more specifically, to a composite overhead cross-linked polyethylene insulated cable. Background Technology

[0002] Composite overhead cable is a type of cable constructed using power transmission lines. It typically integrates optical fibers into the power transmission lines, enabling it to simultaneously handle power transmission and communication functions. It is suitable for integrated cabling in remote areas and smart grid upgrades. The cable is laid in the same way as traditional cables, usually through poles, towers, or buildings.

[0003] When connecting cables, it is usually necessary to separate the optical fiber from the cable, fusion splice the optical fiber to the connector, and then install a continuous box to protect the optical fiber connector. At the same time, the continuous box also needs to be waterproofed and protected against electrical interference. The cable is connected after the optical fiber is connected to minimize the impact of high voltage current on the optical fiber equipment. However, in actual use, the optical fiber and high voltage line are still placed together at the connector, and protected by wrapping an armor layer around the cable. On the one hand, this makes the connection of composite cables more complicated, and on the other hand, the connection of the optical fiber may be susceptible to the influence of the cable, resulting in unstable information transmission. Summary of the Invention

[0004] This invention proposes a composite overhead cross-linked polyethylene insulated cable to solve the problem in the prior art where optical fiber and battery core composite cables may be susceptible to cable interference at the joint.

[0005] The technical solution of the present invention is as follows:

[0006] A composite overhead cross-linked polyethylene insulated cable includes a battery core, an optical fiber, a filler, and an insulation layer. The battery core, the optical fiber, and the filler are twisted together within the insulation layer. The cable also includes a groove, a fastening ring, a sealing groove, an extension arm assembly, and a connector frame. The groove is formed in the insulation layer and the filler. The optical fiber is located within the groove. A sealing groove is fixedly disposed within the groove, and the optical fiber is detachably connected to the sealing groove. The fastening ring is fixedly connected to the insulation layer and has an opening that is fixedly connected to the edge of the sealing groove. An extension arm assembly is connected to the fastening ring and is disposed on the side of the optical fiber away from the sealing groove. The extension arm assembly is detachably connected to the optical fiber and is used for traction of the optical fiber. The connector frame is fixedly connected to the battery core, the fastening ring, and the sealing groove. The connector frame is used for connection to a power transmission line.

[0007] A communication connector is fixedly connected to the fiber optic cable break point. The communication connector can be detachably connected to the connector frame and the extension arm assembly.

[0008] The connector frame is provided with a mating hole, an insulating protective plate, and a mating pin. The mating hole is located on the side of the connector frame near the sealing groove and is detachably connected to the communication connector. The insulating protective plate is fixedly connected to the connector frame and is arc-shaped, surrounding the mating hole. The mating pin is fixedly connected to the connector frame and is located on the side of the mating hole. The mating pin is detachably connected to the communication connector.

[0009] The sealing groove is arc-shaped and is used to seal the filling material inside the wire trench. The sealing groove is provided with a first groove and a second groove. The first groove is located on the side of the sealing groove near the connector frame and is detachably connected to the communication connector. The second groove is located on the side of the sealing groove away from the connector frame and is used to accommodate the optical fiber.

[0010] An arc-shaped pressure plate is provided on the fastening ring. The arc-shaped pressure plate is located on the side of the wire groove away from the connector frame. The extension arm assembly is located on the side of the arc-shaped pressure plate away from the wire groove. When the optical fiber is bent and separated from the groove, the optical fiber comes into contact with the arc-shaped pressure plate.

[0011] The extension arm assembly includes an extension arm one, an extension arm two, and a traction ring. Extension arm one is rotatably connected to the fastening ring, and extension arm two is rotatably connected to the side of extension arm one away from the fastening ring. The traction ring is slidably sleeved on the optical fiber, and extension arm two is rotatably connected to the traction ring.

[0012] The communication connector is provided with a positioning hole, which is detachably connected to the docking pin. A locking ring is provided on the side of the communication connector away from the positioning hole.

[0013] The clamping ring is fixedly connected to the side of the traction ring near the communication connector. Both the communication connector and the clamping ring on the traction ring are detachably connected to a connecting ring. When the optical fiber bends outside the second groove, the communication connector and the traction ring can be detachably connected through the connecting ring.

[0014] A baffle plate is fixedly installed in the groove. When the communication connector is connected to the docking hole, the baffle plate contacts the side of the communication connector near the clamping ring.

[0015] The working principle and beneficial effects of this invention are as follows:

[0016] 1. In this invention, by setting a sealing groove, after the optical fiber is cut out of the cable, the inside of the cable is sealed by setting a sealing groove on the cable. This can reduce the amount of other substances that enter the cable through the cut groove, and at the same time, it can accommodate the bending and rotation of the optical fiber, avoiding the optical fiber from being squeezed or broken by small-angle bending.

[0017] 2. In this invention, by setting an extension arm assembly, when the optical fiber is not connected to the connector frame, the optical fiber can be rotated to the side of the cable and connected to the connector. At this time, the extension arm assembly is connected to the communication connector, which can prevent the optical fiber from being pulled and broken by excessive traction force during connection, thus protecting the optical fiber.

[0018] 3. In this invention, by setting a fastening ring, when a groove is cut into the cable, the inside of the cable is sealed by the sealing groove, and the fastening ring prevents the insulation layer and filler from loosening. The sealing groove not only seals the inside of the cable but also provides a place to store the optical fiber. By setting a connector frame, the docking position of the communication connector on the connector frame can maintain the insulation protection of the optical fiber when the battery core and optical fiber are docked in the same position. At the same time, the communication connector can also act as a continuous box. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure from another perspective in this invention;

[0022] Figure 3 This is a schematic diagram of the structure in which the mating hole and the communication connector mate in this invention;

[0023] Figure 4 This is a partial internal structure diagram of the sealing groove in this invention;

[0024] Figure 5 This is a partial internal cross-sectional view of the trench excavation structure in this invention;

[0025] Figure 6 This is a partial internal cross-sectional view of the communication connector and connector frame in this invention.

[0026] Figure 7 This is a partial cross-sectional view of the connecting ring in this invention.

[0027] In the diagram: 1. Battery cell; 2. Optical fiber; 3. Filler; 4. Insulation layer; 6. Sealing groove; 7. Fastening ring; 8. Connector frame; 9. Communication connector; 10. Docking hole; 11. Insulating protective plate; 12. Docking pin; 13. Groove one; 14. Groove two; 15. Arc-shaped pressure plate; 16. Support arm one; 17. Support arm two; 18. Traction ring; 19. Positioning hole; 20. Clamping ring; 21. Connecting ring; 22. Grid plate. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1-7 As shown, this embodiment proposes a composite overhead cross-linked polyethylene insulated cable, including a battery core 1, an optical fiber 2, a filler 3, and an insulation layer 4. The battery core 1, optical fiber 2, and filler 3 are twisted together in the insulation layer 4. It also includes a grooved cable, a fastening ring 7, a sealing groove 6, an extension arm assembly, and a connector frame 8. The grooved cable is formed in the insulation layer 4 and the filler 3, with the optical fiber 2 located within it. The sealing groove 6 is fixedly installed in the grooved cable, and the optical fiber 2 is detachably connected to the sealing groove 6. The fastening ring 7 is fixedly connected to the insulation layer 4 and has an opening that is fixedly connected to the edge of the sealing groove 6. An extension arm assembly is connected to the fastening ring 7, located on the side of the optical fiber 2 away from the sealing groove 6, and is detachably connected to the optical fiber 2. The connector frame 8 is used for pulling the optical fiber 2. It is fixedly connected to the battery core 1, the connector frame 8 is fixedly connected to the fastening ring 7, and the connector frame 8 is fixedly connected to the sealing groove 6. The connector frame 8 is used to connect to the power transmission line. In this application, the optical fiber 2 is separated at the joint position of the cable. The connector frame 8 is set to be detachably connected to the optical fiber 2. When it is necessary to connect the optical fiber 2 and the battery core 1 at the same position, it can be achieved by connecting to the connector frame 8. When the battery core 1 and the optical fiber 2 can be connected separately, the optical fiber 2 is pulled by the extension arm assembly. The optical fiber 2 is connected to the side of the battery core 1, which can reduce the influence of the high voltage in the battery core 1 on the optical fiber 2. By separating the optical fiber 2 and selecting the connection position, the optical fiber 2 can be connected according to the specific situation.

[0030] like Figures 1-6As shown, a communication connector 9 is fixedly connected at the break point of optical fiber 2. The communication connector 9 can be detachably connected to the connector frame 8 and the extension arm assembly. The communication connector 9 is provided with a positioning hole 19, which is detachably connected to the docking pin 12. The positioning hole 19 is located on the side of the communication connector 9. When the communication connector 9 is docked with the docking hole 10, the positioning hole 19 docks with the docking pin 12. The positioning hole 19 can limit the angle when the communication connector 9 is connected to the docking hole 10.

[0031] like Figures 1-6 As shown, the connector frame 8 is provided with a mating hole 10, an insulating protective plate 11, and a mating pin 12. The mating hole 10 is located on the side of the connector frame 8 near the sealing groove 6 and is detachably connected to the communication connector 9. The insulating protective plate 11 is fixedly connected to the connector frame 8 and is arc-shaped, surrounding the mating hole 10. The mating pin 12 is fixedly connected to the connector frame and is located to the side of the mating hole 10. The mating pin 12 is detachably connected to the communication connector 9. When the communication connector 9 is connected to the docking hole 10, the docking pin 12 is set in a shape similar to a locking tongue. After the communication connector 9 is pressed into the groove 13, the baffle plate 22 contacts the communication connector 9. At this time, the communication connector 9 is connected to the docking hole 10. The baffle plate 22 can lock the communication connector 9 to prevent it from falling off. After the communication connector 9 is connected to the docking hole 10, the optical fiber 2 and the battery cell 1 are connected at the connector frame 8. At the same time, the insulating plate 11 can isolate the connector position of the optical fiber 2 and reduce the influence of the battery cell 1 connector.

[0032] like Figures 4-5 As shown, the sealing groove 6 is arc-shaped and is used to seal the filler 3 inside the wire trench. The sealing groove 6 is provided with groove 13 and groove 2 14. Groove 13 is located on the side of the sealing groove 6 near the connector frame 8 and is detachably connected to the communication connector 9. Groove 2 14 is located on the side of the sealing groove 6 away from the connector frame 8 and is used to house the optical fiber 2. A baffle plate 22 is fixedly installed in groove 13. When the communication connector 9 is connected to the docking hole 10, the baffle plate 22 contacts the side of the communication connector 9 near the clamping ring 20. The shape of groove 13 corresponds to that of the communication connector 9. The space in groove 2 14 is larger than that in groove 13. When the communication connector 9 is docked with the docking hole 10, the extension arm assembly presses down on the optical fiber 2. At the same time, the extension arm assembly protects the optical fiber 2 outside the sealing groove 6. The optical fiber 2 can be placed in groove 2 14, which can prevent the optical fiber 2 from being squeezed and sheared, thus achieving a protective effect.

[0033] like Figures 1-7As shown, an arc-shaped pressure plate 15 is provided on the fastening ring 7. The arc-shaped pressure plate 15 is located on the side of the wire groove away from the connector frame 8. The extension arm assembly is located on the side of the arc-shaped pressure plate 15 away from the wire groove. When the optical fiber 2 bends and separates from the groove 14, the optical fiber 2 contacts the arc-shaped pressure plate 15. The extension arm assembly includes a first arm 16, a second arm 17, and a traction ring 18. The first arm 16 is rotatably connected to the fastening ring 7, and the second arm 17 is rotatably connected to the side of the first arm 16 away from the fastening ring 7. The traction ring 18 slides... The movable sleeve is set on the optical fiber 2. The second support arm 17 is rotatably connected to the traction ring 18. The arc-shaped pressure plate 15 and the fastening ring 7 maintain a certain angle. When the communication connector 9 is not connected to the docking hole 10 and the optical fiber 2 bends outward toward the groove 13, the optical fiber 2 contacts the arc-shaped pressure plate 15. The arc-shaped pressure plate 15 can prevent the optical fiber 2 from being damaged by too large a bending angle. At this time, the first support arm 16 and the second support arm 17 both rotate with the optical fiber 2. The extension support arm assembly supports the optical fiber 2 while also preventing the optical fiber 2 from bending too much.

[0034] like Figure 4 and Figure 7 As shown, a clamping ring 20 is provided on the side of the communication connector 9 away from the positioning hole 19, and a clamping ring 20 is fixedly connected to the side of the traction ring 18 near the communication connector 9. Both the clamping rings 20 on the communication connector 9 and the traction ring 18 are detachably connected to a connecting ring 21. When the optical fiber 2 bends outside the groove 14, the communication connector 9 and the traction ring 18 can be detachably connected through the connecting ring 21. The traction ring 18 slides to a position close to the communication connector 9. At this time, the two clamping rings 20 are close together. The connecting ring 21 can be sleeved on the two clamping rings 20 for locking, so that the traction ring 18 is connected to the communication connector 9. At this time, the optical fiber 2 can move within the range of motion of the extension arm assembly. When the external connector is connected to the communication connector 9, the first arm 16 and the second arm 17 bear the tension of the external connecting line, which can protect the optical fiber 2.

[0035] In this embodiment, a groove is cut at the cut end of the cable, and a fastening ring 7 is installed in the groove. The inside of the groove is the range of movement of the optical fiber 2. It is detachably connected to the docking hole 10 through the communication connector 9. When it is necessary to connect the optical fiber 2 and the battery core 1 in the same position, it can be connected to the connector frame through the communication connector 9. It is insulated and protected by the insulating protective plate 11. When the connector position of the optical fiber 2 is different from the connector position of the battery core 1, the optical fiber 2 can be bent to the outside of the groove 14. At this time, the traction ring 18 can be connected to the communication connector 9 through the connecting ring 21. At this time, the optical fiber 2 can move within the range of the first support arm 16 and the second support arm 17 to prevent the optical fiber 2 from being damaged by stretching.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite overhead cross-linked polyethylene insulated cable, comprising a battery core (1), an optical fiber (2), a filler (3), and an insulation layer (4), wherein the battery core (1), the optical fiber (2), and the filler (3) are twisted together in the insulation layer (4), characterized in that, Also includes: A wire groove is formed on the insulating layer (4) and the filler (3), the optical fiber (2) is located in the wire groove, and a sealing groove (6) is fixedly provided in the wire groove. The optical fiber (2) is detachably connected to the sealing groove (6). A fastening ring (7) is fixedly connected to the insulating layer (4). An opening is provided on the fastening ring (7), and the opening is fixedly connected to the edge of the sealing groove (6). An extension arm assembly is connected to the fastening ring (7). The extension arm assembly is located on the side of the optical fiber (2) away from the sealing groove (6). The extension arm assembly is detachably connected to the optical fiber (2). The extension arm assembly is used for pulling the optical fiber (2). The connector frame (8) is fixedly connected to the battery cell (1), the connector frame (8) is fixedly connected to the fastening ring (7), the connector frame (8) is fixedly connected to the sealing groove (6), and the connector frame (8) is used to connect to the power transmission line.

2. The composite overhead cross-linked polyethylene insulated cable according to claim 1, characterized in that, A communication connector (9) is fixedly connected at the break point of the optical fiber (2). The communication connector (9) can be detachably connected to the connector frame (8) and the communication connector (9) can be detachably connected to the extension arm assembly.

3. A composite overhead cross-linked polyethylene insulated cable according to claim 2, characterized in that, The connector frame (8) is provided with: A docking hole (10) is provided on the side of the connector frame (8) near the sealing groove (6), and the docking hole (10) is detachably connected to the communication connector (9); An insulating protective plate (11) is fixedly connected to the joint frame (8). The insulating protective plate (11) is set in an arc shape and surrounds the docking hole (10). A docking pin (12) is fixedly connected to the connector frame. The docking pin (12) is located on the side of the docking hole (10). The docking pin (12) is detachably connected to the communication connector (9).

4. A composite overhead cross-linked polyethylene insulated cable according to claim 3, characterized in that, The sealing groove (6) is arc-shaped and is used to seal the filling material (3) inside the trench. The sealing groove (6) is provided with: A groove (13) is formed on the side of the sealing groove (6) near the connector frame (8), and the groove (13) is detachably connected to the communication connector (9); The second groove (14) is formed on the side of the sealing groove (6) away from the connector frame (8), and the second groove (14) is used to receive the optical fiber (2).

5. A composite overhead cross-linked polyethylene insulated cable according to claim 4, characterized in that, An arc-shaped pressure plate (15) is provided on the fastening ring (7). The arc-shaped pressure plate (15) is located on the side of the wire digging groove away from the connector frame (8). The extension arm assembly is located on the side of the arc-shaped pressure plate (15) away from the wire digging groove. When the optical fiber (2) bends and separates from the groove (14), the optical fiber (2) comes into contact with the arc-shaped pressure plate (15).

6. A composite overhead cross-linked polyethylene insulated cable according to claim 5, characterized in that, The extension arm assembly includes: Support arm 1 (16) is rotatably connected to the fastening ring (7); Support arm two (17) is rotatably connected to the side of support arm one (16) away from the fastening ring (7); The traction ring (18) is slidably sleeved on the optical fiber (2), and the second support arm (17) is rotatably connected to the traction ring (18).

7. A composite overhead cross-linked polyethylene insulated cable according to claim 6, characterized in that, The communication connector (9) is provided with a positioning hole (19), which is detachably connected to the docking pin (12). A locking ring (20) is provided on the side of the communication connector (9) away from the positioning hole (19).

8. A composite overhead cross-linked polyethylene insulated cable according to claim 7, characterized in that, The clamping ring (20) is fixedly connected to the side of the traction ring (18) near the communication connector (9). The clamping ring (20) on both the communication connector (9) and the traction ring (18) can be detachably connected to a connecting ring (21). When the optical fiber (2) bends outside the second groove (14), the communication connector (9) and the traction ring (18) can be detachably connected through the connecting ring (21).

9. A composite overhead cross-linked polyethylene insulated cable according to claim 8, characterized in that, A baffle plate (22) is fixedly installed in the groove (13). When the communication connector (9) is connected to the docking hole (10), the baffle plate (22) contacts the side of the communication connector (9) near the clamping ring (20).

Images