A carbon fiber composite core type overhead insulated cable

Abstract

The present invention discloses a carbon fiber composite core type overhead insulated cable, which relates to the field of cables and solves the problems of relatively insufficient heat dissipation and fire resistance of existing overhead insulated cables during use, complicated cable connection operation, and low construction efficiency. The cable comprises a carbon fiber core, a copper wire core, a composite mechanism, a docking mechanism, a connecting mechanism, and an insulating sleeve. The docking mechanism comprises a docking plate and a connector. The present invention winds and combines the carbon fiber core and the copper wire core through the composite mechanism to form a carbon fiber composite core type overhead insulated cable, thereby improving the overall heat dissipation and fire resistance. The docking plate is installed on one end of the carbon fiber core through the docking mechanism and the wiring harness in the entire cable is quickly docked, thereby improving the wiring efficiency between multiple groups of wiring harnesses. The two adjacent groups of docking plates are connected and fixed through the connecting mechanism, thereby improving the connection efficiency and facilitating the connection, disassembly, assembly, and maintenance of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to a carbon fiber composite core type overhead insulated cable. Background Art

[0002] Overhead cable (full name overhead insulated cable) is an overhead conductor equipped with an insulation layer and a protective outer sheath. It is a special cable manufactured using a production process similar to that of cross-linked cables. It is a new way of transmitting electricity between overhead conductors and underground cables. Overhead cables are all single-core. According to their different structures, they can be divided into hard aluminum wire structure, hard-drawn copper wire structure, aluminum alloy wire structure, steel core or aluminum alloy core support structure and self-supporting three-core composite structure (the wire core can be hard aluminum or hard copper wire), etc.

[0003] Although existing insulated cables have certain strength, their heat dissipation and fire resistance are poor. At the same time, during disassembly and maintenance, due to the large number of wire harnesses inside the cable, the termination process of the overhead insulated cable requires separate connection of different wire harnesses before the overall connection of the cable can be completed, resulting in relatively low construction efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a carbon fiber composite core type overhead insulated cable that is convenient for improving cable performance while improving disassembly and connection efficiency and stability, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a carbon fiber composite core overhead insulated cable, comprising a carbon fiber core, a copper wire core, a composite structure, a docking structure, a connecting structure and an insulating sleeve, wherein the composite structure is installed on the carbon fiber core to form an insulated cable, thereby improving heat dissipation and fire resistance. The docking structure comprises a docking tray installed at one end of the carbon fiber core, and the docking tray is provided with a connector for improving the connection efficiency with the carbon fiber core and the copper wire core, and is used to install the docking tray at one end of the carbon fiber core and quickly dock the wiring harness within the entire cable. The connecting mechanism is installed on the docking tray to connect and fix two adjacent groups of the docking trays, thereby improving connection efficiency, facilitating the improvement of cable performance while improving disassembly and connection efficiency and stability.

[0006] Preferably, the composite structure includes a thermal conductive wire installed on the carbon fiber core, and the carbon fiber core and the copper wire core are spirally wound on the outer wall of the thermal conductive wire to form a group of cable cores. The outer wall of the cable core is provided with an insulating layer, and a fireproof layer is fixedly connected to the inner side of the insulating sleeve. The multiple groups of cable cores in the fireproof layer constitute a group of carbon fiber composite core insulated cables as a whole. A heat dissipation pad is provided between the insulating layer and the fireproof layer, and multiple groups of heat dissipation holes are evenly opened in the heat dissipation pad, which is convenient for forming a carbon fiber composite core overhead insulated cable, thereby improving the overall heat dissipation performance and fireproof performance.

[0007] Preferably, the docking mechanism also includes multiple groups of heat-conducting rings fixedly mounted on the docking plate, a fixed block is fixedly connected to the heat-conducting ring, a first fixed tube and two groups of second fixed tubes are fixedly connected to the fixed block, the first fixed tube is provided with a heat-conducting part for connecting to the heat-conducting wire for heat conduction, and the docking plate is provided with a heat dissipation part for dissipating the heat on the heat-conducting ring to the outside, so as to facilitate the installation of the docking plate on one end of the carbon fiber core and the rapid docking of the wiring harness in the entire cable.

[0008] Preferably, the heat dissipation component includes a first heat-conducting block fixedly mounted on the outer wall of the first fixed tube, the first heat-conducting block is fixedly connected to the inner wall of the heat-conducting ring, a second heat-conducting block is fixedly connected between multiple groups of heat-conducting rings, a heat dissipation cavity is provided in the docking plate, and multiple groups of heat dissipation grooves connected to the heat dissipation cavity are evenly provided on the docking plate, so as to facilitate the dissipation of heat from the heat-conducting ring to the outside world.

[0009] Preferably, the docking mechanism also includes a guide ring fixedly installed on one end of the insulating sleeve, the side of the guide ring is coaxially fixedly connected to a fixing ring, a plurality of groups of plug-in slots are evenly arranged on the fixing ring, the side of the docking plate is fixedly connected to a threaded ring that can be plugged into the outer wall of the plug-in slot, the outer wall of the guide ring is movably connected to a threaded tube that can be threadedly connected to the outer wall of the threaded ring, so as to facilitate the connection of the insulating sleeve with the docking plate.

[0010] Preferably, the connecting mechanism includes two groups of semicircular tubes sleeved on the outer wall of the docking plate, one side of the two groups of semicircular tubes are hinged to each other, and the other side can be connected by bolts to form a tubular structure, a guide groove is provided in the semicircular tube, two groups of semicircular rings are slidably connected in the guide groove, a drive shaft is rotatably connected in one of the guide grooves in the upper semicircular tube, the drive shaft passes through the semicircular rings on both sides, two groups of threaded grooves are provided on the drive shaft, the thread directions of the two groups of threaded grooves are opposite, and they are respectively threadedly connected to the semicircular rings on both sides, and a driving member is provided on the drive shaft for simultaneously driving the semicircular rings in the two groups of semicircular tubes to move, so as to facilitate the connection and fixation of the two adjacent groups of docking plates, thereby improving the connection efficiency.

[0011] Preferably, the driving member includes a worm wheel fixedly mounted on the driving shaft, a group of the semicircular tubes is rotatably connected to a worm meshing with the worm wheel, and the bottom of the upper semicircular ring is fixedly connected to a pushing block for pushing the lower semicircular ring to move and clamp, so as to facilitate the simultaneous movement of the semicircular rings in the two groups of semicircular tubes.

[0012] Preferably, the heat conducting member includes two groups of third heat conducting blocks slidably connected to the inner wall of the first fixed tube, and one end of the third heat conducting block is fixedly connected to a first spring fixedly connected to the first fixed tube, so as to facilitate connection with the heat conducting wire for heat conduction.

[0013] Preferably, the connecting member includes two groups of conductive blocks slidingly connected to the inner wall of the second fixed tube, and one end of the conductive block is fixedly connected to a second spring fixedly connected to the inner wall of the second fixed tube, so as to facilitate improving the connection efficiency between the conductive block and the carbon fiber core and the copper wire core.

[0014] Preferably, both the docking plate and the guide ring are provided with indicating arrows for determining the docking angle position, so as to assist in determining the docking angle position.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a carbon fiber composite core type overhead insulated cable, which solves the problems of relatively insufficient heat dissipation and fire resistance of existing overhead insulated cables during use, complicated cable connection operations, and low construction efficiency. The carbon fiber core and copper wire core are wound and combined by a composite mechanism to form a carbon fiber composite core type overhead insulated cable, thereby improving the overall heat dissipation and fire resistance. The docking plate is installed on one end of the carbon fiber core by a docking mechanism, and the wiring harness in the entire cable is quickly docked, thereby improving the wiring efficiency between multiple groups of wiring harnesses. The two adjacent groups of docking plates are connected and fixed by a connecting mechanism, thereby improving the connection efficiency and facilitating the connection, disassembly, assembly, and maintenance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a partial structural cross-sectional view of the composite mechanism of the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of area A in the middle;

[0020] Figure 4 It is a schematic diagram of the local structure of the connecting mechanism of the present invention;

[0021] Figure 5 for Figure 4Enlarged view of area B in the middle;

[0022] Figure 6 This is an exploded view of the local structure of the docking mechanism of the present invention;

[0023] Figure 7 for Figure 6 Enlarged view of area C in the middle;

[0024] Figure 8 It is a schematic diagram of the partial structure of the docking mechanism of the present invention;

[0025] Figure 9 This is a partial structural cross-sectional view of the docking mechanism of the present invention;

[0026] Figure 10 for Figure 9 Enlarged view of area D in the middle.

[0027] In the figure: 1-carbon fiber core; 2-copper wire core; 3-insulating sleeve; 4-composite structure; 5-docking structure; 6-docking plate; 7-connector; 8-connecting structure; 9-heat conducting wire; 10-cable core; 11-insulating layer; 12-fireproof layer; 13-heat dissipation pad; 14-heat dissipation hole; 15-heat conducting ring; 16-fixing block; 17-first fixing tube; 18-second fixing tube; 19-heat conducting element; 20-heat dissipation element; 21-first heat conducting block; 22-second Second heat-conducting block; 23-heat dissipation cavity; 24-heat dissipation groove; 25-guide ring; 26-fixing ring; 27-plug-in groove; 28-threaded ring; 29-threaded tube; 30-semicircular tube; 31-guide groove; 32-semicircular ring; 33-drive shaft; 34-threaded groove; 35-drive member; 36-worm gear; 37-worm; 38-pushing block; 39-third heat-conducting block; 40-first spring; 41-conductive block; 42-second spring; 43-indicator arrow. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-10The present invention provides a technical solution: a carbon fiber composite core overhead insulated cable, comprising a carbon fiber core 1, a copper wire core 2, a composite mechanism 4, a docking mechanism 5, a connecting mechanism 8 and an insulating sleeve 3, wherein the composite mechanism 4 is installed on the carbon fiber core 1 to form an insulated cable and improve the heat dissipation performance and fire resistance. The docking mechanism 5 includes a docking tray 6 installed at one end of the carbon fiber core 1, and a connector 7 is provided on the docking tray 6 to improve the connection efficiency with the carbon fiber core 1 and the copper wire core 2. The connector 7 is used to install the docking tray 6 on one end of the carbon fiber core 1 and quickly dock the wire harness in the entire cable. The connecting mechanism 8 is installed on the docking tray 6 to connect and fix two adjacent groups of docking trays 6 to improve the connection efficiency.

[0030] The composite structure 4 includes a thermal conductive wire 9 installed on a carbon fiber core 1. The carbon fiber core 1 and the copper wire core 2 are spirally wound around the outer wall of the thermal conductive wire 9 to form a group of cable cores 10. The outer wall of the cable core 10 is provided with an insulating layer 11. A fireproof layer 12 is fixedly connected to the inner side of the insulating sleeve 3. The fireproof layer 12 is made of mica tape. The multiple groups of cable cores 10 in the fireproof layer 12 constitute a group of carbon fiber composite core insulated cables as a whole. A heat dissipation pad 13 is provided between the insulating layer 11 and the fireproof layer 12. A plurality of heat dissipation holes 14 are evenly arranged in the heat dissipation pad 13. The insulating layer 11 and the insulating sleeve 3 are both made of polyvinyl chloride (PVC).

[0031] The carbon fiber core 1 and the copper wire core 2 are twisted on the outside of the thermal wire 9 to form a group of cable cores 10, and an insulating layer 11 is extruded on the outside of the cable core 10 for coating. Multiple groups of coated cable cores 10 are bonded together to form a bundle of cables, and a fireproof layer 12 is coated on the outer wall. Finally, an insulating sleeve 3 is coated on the outer wall of the fireproof layer 12, and a heat dissipation pad 13 layer is filled between the multiple cable cores 10 in the fireproof layer 12 to improve the efficiency of insulation and heat dissipation. Compared with ordinary cables, the carbon fiber composite core type overhead insulated cable has a transmission capacity twice as high as that of ordinary cables. This material can greatly save electricity, has a long service life, a high return on investment, and a high comprehensive value. The internal coating of the thermal wire 9 increases the overall strength of the cable, and also enables heat to be transferred to the two ends through the thermal wire 9 for heat dissipation, reducing the accumulation of heat inside the cable. At the same time, the fireproof layer 12 effectively improves the overall fire resistance of the cable.

[0032] The docking mechanism 5 also includes multiple groups of heat-conducting rings 15 fixedly mounted on the docking plate 6, a fixed block 16 is fixedly connected to the heat-conducting ring 15, a first fixed tube 17 and two groups of second fixed tubes 18 are fixedly connected to the fixed block 16, a heat-conducting member 19 for connecting to the heat-conducting wire 9 for heat conduction is provided in the first fixed tube 17, and a heat sink 20 is provided on the docking plate 6 for dissipating the heat on the heat-conducting ring 15 to the outside.

[0033] The heat sink 20 includes a first heat-conducting block 21 fixedly mounted on the outer wall of the first fixed tube 17. The first heat-conducting block 21 is fixedly connected to the inner wall of the heat-conducting ring 15. A second heat-conducting block 22 is fixedly connected between multiple groups of heat-conducting rings 15. A heat dissipation cavity 23 is provided in the docking plate 6, and multiple groups of heat dissipation grooves 24 connected to the heat dissipation cavity 23 are evenly provided on the docking plate 6.

[0034] The docking mechanism 5 also includes a guide ring 25 fixedly installed on one end of the insulating sleeve 3, and a fixed ring 26 is coaxially fixedly connected to the side of the guide ring 25. A plurality of groups of plug-in grooves 27 are evenly arranged on the fixed ring 26. A threaded ring 28 that can be plugged into the outer wall of the plug-in groove 27 is fixedly connected to the side of the docking plate 6. A threaded tube 29 that can be threadedly connected to the outer wall of the threaded ring 28 is movably connected to the outer wall of the guide ring 25. An indicator arrow 43 for judging the docking angle position is provided on both the docking plate 6 and the guide ring 25.

[0035] The connecting mechanism 8 includes two groups of semicircular tubes 30 that are sleeved on the outer wall of the docking plate 6. One side of the two groups of semicircular tubes 30 are hinged to each other, and the other side can be connected by bolts to form a tubular structure. A guide groove 31 is provided in the semicircular tube 30, and two groups of semicircular rings 32 are slidably connected in the guide groove 31. A drive shaft 33 is rotatably connected in a guide groove 31 in the upper semicircular tube 30. The drive shaft 33 passes through the semicircular rings 32 on both sides. Two groups of threaded grooves 34 are provided on the drive shaft 33. The thread directions of the two groups of threaded grooves 34 are opposite, and they are respectively threadedly connected to the semicircular rings 32 on both sides. The drive shaft 33 is provided with a driving member 35 for simultaneously driving the semicircular rings 32 in the two groups of semicircular tubes 30 to move.

[0036] The driving member 35 includes a worm gear 36 fixedly mounted on the driving shaft 33, a group of semicircular tubes 30 rotatably connected to a worm 37 meshing with the worm gear 36, and a pushing block 38 fixedly connected to the bottom of the upper semicircular ring 32 for pushing the lower semicircular ring 32 to move and clamp.

[0037] The heat conducting member 19 includes two groups of third heat conducting blocks 39 that are slidably connected to the inner wall of the first fixed tube 17, and one end of the third heat conducting block 39 is fixedly connected to a first spring 40 that is fixedly connected to the first fixed tube 17. The connecting member 7 includes two groups of conductive blocks 41 that are slidably connected to the inner wall of the second fixed tube 18, and one end of the conductive block 41 is fixedly connected to a second spring 42 that is fixedly connected to the inner wall of the second fixed tube 18.

[0038] In this embodiment, by aligning the indicator arrow 43 on the docking tray 6 with the indicator arrow 43 on the guide ring 25, and then inserting the threaded ring 28 into the plug-in slot 27, it can be ensured that the carbon fiber core 1 and the copper wire core 2 can be docked and connected with the conductive blocks 41 at the corresponding positions, and the electrical signal is transmitted to the corresponding second fixed tube 18. At this time, one end of the thermal wire 9 is in conflict with the third thermal block 39, and the first spring 40 is compressed to transfer the heat on the thermal wire 9 to the third thermal block 39 and the first fixed tube 17. At this time, the threaded tube 29 is rotated and the threaded ring 28 is threadedly connected to the threaded tube 29 to complete the connection and fixation between the docking tray 6 and the cable core 10.

[0039] At this time, the heat on the first fixed tube 17 will be transferred to the heat-conducting ring 15 through the first heat-conducting block 21, and then transferred to the surrounding heat-conducting rings 15 through the second heat-conducting block 22 on the outer wall of the heat-conducting ring 15. Finally, the heat is dissipated into the heat dissipation cavity 23 through the heat-conducting ring 15 at the outer position, and dissipated to the outside through the heat dissipation groove 24, thereby achieving efficient heat dissipation function without leakage. This heat dissipation structure is stable and efficient, and can dissipate the heat generated in the middle of the cable core 10 directly from the connection points at both ends, avoiding the problem of high heat dissipation intensity of the external cable and poor heat dissipation intensity of the internal cable in the traditional heat dissipation structure.

[0040] The docking discs 6 of the two groups of cable ends that need to be docked are fitted together, and docking grooves that are aligned with each other can be set on the docking discs 6. After the docking is completed, the two groups of semi-circular tubes 30 are opened and sleeved on the outer wall of the docking disc 6. The two groups of semi-circular rings 32 are combined into a circular tube by bolts and sleeved on the outside of the docking disc 6. The semi-circular rings 32 on both sides are in the positions on both sides. At this time, rotating the worm 37 can drive the worm gear 36 to rotate, and the worm gear 36 drives the driving shaft 33 so that the threaded groove 34 drives the semi-circular rings 32 on both sides to slide and squeeze synchronously in the guide groove 31. The semi-circular ring 32 sliding on the upper side will drive the lower semi-circular ring 32 to slide synchronously through the pushing block 38, so that the upper and lower groups of semi-circular rings 32 form a circular ring-shaped synchronous sliding to resist the side of the threaded tube 29, so that the docking discs 6 on both sides continuously resist and squeeze, thereby improving the tightness of the connection.

[0041] It is worth noting that: since the third heat-conducting blocks 39 and the conductive blocks 41 on the two sets of docking trays 6 are respectively ejected by the first spring 40 and the second spring 42, the third heat-conducting blocks 39 on the docking trays 6 on both sides can fit tightly, even if gaps appear in the docking trays 6, heat and electricity can be stably transmitted. The driving method of the worm gear 36 driven by the worm 37 realizes a more stable limit. The drive shaft 33 can only be rotated by the worm gear 36 driven by the worm 37, and the drive shaft 33 cannot drive the worm gear 36 to drive the worm 37 to rotate. The automatic limit function can be realized without the need for additional limiting parts, and the operation is more efficient and convenient.

[0042] When the connection needs to be removed, the worm 37 can be directly rotated in the opposite direction to make the worm wheel 36 drive the drive shaft 33 to rotate in the opposite direction, so that the semicircular rings 32 on both sides are opened synchronously, reducing the thrust on the side of the threaded tube 29. After opening the bolts, the two groups of semicircular tubes 30 are opened to directly disconnect the docking plates 6 on both sides. The operation is convenient. The setting of the first spring 40 and the second spring 42 can also better ensure the stability of signal transmission between the third heat conducting block 39 and the adjacent heat conducting wire 9, and the conductive block 41 and the adjacent carbon fiber core 1 or copper wire core 2.

[0043] Production process: (1) Raw materials entering the factory; (2) Warehousing; (3) Wire drawing (annealing); (4) Copper wire rewinding; (5) Conductor twisting; (6) Extruded insulation; (7) Filling / wrapping / armoring; (8) Spark test; (9) Steam cross-linking; (10) Wire core cabling; (11) Extruded sheathing; (12) Spark test; (13) Inspection and storage.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A carbon fiber composite core type overhead insulated cable, characterized in that: include: Carbon fiber core (1), copper wire core (2) and insulating sleeve (3); Also includes: A composite structure (4) is installed on the carbon fiber core (1) and is used to form an insulated cable to improve heat dissipation and fire resistance. The composite structure (4) includes a heat-conducting wire (9) installed on the carbon fiber core (1). The carbon fiber core (1) and the copper wire core (2) are both spirally wound around the outer wall of the heat-conducting wire (9) to form a group of cable cores (10). The outer wall of the cable core (10) is provided with an insulating layer (11). The inner side of the insulating sleeve (3) is fixedly connected with a fireproof layer (12). The multiple groups of cable cores (10) in the fireproof layer (12) constitute a group of carbon fiber composite core insulated cables as a whole. A heat dissipation pad (13) is provided between the insulating layer (11) and the fireproof layer (12). The heat dissipation pad (13) is evenly provided with multiple groups of heat dissipation holes (14). A docking mechanism (5), the docking mechanism (5) comprising a docking plate (6) mounted on one end of the carbon fiber core (1), the docking plate (6) being provided with a connector (7) for improving the efficiency of connection with the carbon fiber core (1) and the copper wire core (2), and being used for mounting the docking plate (6) on one end of the carbon fiber core (1) and quickly docking the wiring harness within the entire cable; A connecting mechanism (8) is installed on the docking plate (6) and is used to connect and fix two adjacent groups of docking plates (6) to improve connection efficiency.

2. The carbon fiber composite core type overhead insulated cable according to claim 1, characterized in that: The docking mechanism (5) further comprises a plurality of heat-conducting rings (15) fixedly mounted on the docking plate (6), wherein a fixing block (16) is fixedly connected inside the heat-conducting ring (15), wherein a first fixing tube (17) and two groups of second fixing tubes (18) are fixedly connected inside the fixing block (16), wherein a heat-conducting member (19) for connecting with the heat-conducting wire (9) for heat conduction is provided inside the first fixing tube (17), and the docking plate (6) is provided with a heat dissipating member (20) for dissipating heat from the heat-conducting ring (15) to the outside.

3. The carbon fiber composite core type overhead insulated cable according to claim 2, characterized in that: The heat sink (20) comprises a first heat conducting block (21) fixedly mounted on the outer wall of the first fixed tube (17); the first heat conducting block (21) is fixedly connected to the inner wall of the heat conducting ring (15); a second heat conducting block (22) is fixedly connected between multiple groups of the heat conducting rings (15); a heat dissipation cavity (23) is provided in the docking plate (6); and multiple groups of heat dissipation grooves (24) connected to the heat dissipation cavity (23) are evenly provided on the docking plate (6).

4. The carbon fiber composite core type overhead insulated cable according to claim 1, characterized in that: The docking mechanism (5) further comprises a guide ring (25) fixedly mounted on one end of the insulating sleeve (3); a fixing ring (26) is coaxially fixedly connected to the side of the guide ring (25); a plurality of groups of plug-in slots (27) are evenly arranged on the fixing ring (26); a threaded ring (28) capable of plugging into the outer wall of the plug-in slot (27) is fixedly connected to the side of the docking plate (6); and a threaded tube (29) capable of threaded connection to the outer wall of the threaded ring (28) is movably sleeved on the outer wall of the guide ring (25).

5. The carbon fiber composite core type overhead insulated cable according to claim 4, characterized in that: The connecting mechanism (8) comprises two groups of semicircular tubes (30) sleeved on the outer wall of the docking plate (6), one side of the two groups of semicircular tubes (30) is hinged to each other, and the other side can be connected to form a tubular structure by bolts, a guide groove (31) is provided in the semicircular tube (30), two groups of semicircular rings (32) are slidably connected in the guide groove (31), a driving shaft (33) is rotatably connected in one of the guide grooves (31) in the upper semicircular tube (30), the driving shaft (33) passes through the semicircular rings (32) on both sides, two groups of thread grooves (34) are provided on the driving shaft (33), the thread directions of the two groups of thread grooves (34) are opposite, and they are respectively threadedly connected to the semicircular rings (32) on both sides, and a driving member (35) is provided on the driving shaft (33) for simultaneously driving the semicircular rings (32) in the two groups of semicircular tubes (30) to move.

6. The carbon fiber composite core type overhead insulated cable according to claim 5, characterized in that: The driving member (35) includes a worm gear (36) fixedly mounted on the driving shaft (33); a group of semicircular tubes (30) are rotatably connected to a worm (37) meshing with the worm gear (36); and a pushing block (38) is fixedly connected to the bottom of the upper semicircular ring (32) for pushing the lower semicircular ring (32) to move and clamp.

7. The carbon fiber composite core type overhead insulated cable according to claim 2, characterized in that: The heat conducting member (19) comprises two groups of third heat conducting blocks (39) slidably connected to the inner wall of the first fixed tube (17), and one end of the third heat conducting block (39) is fixedly connected to a first spring (40) fixedly connected to the first fixed tube (17).

8. The carbon fiber composite core type overhead insulated cable according to claim 2, characterized in that: The connecting member (7) comprises two groups of conductive blocks (41) slidably connected to the inner wall of the second fixed tube (18), and one end of the conductive block (41) is fixedly connected to a second spring (42) fixedly connected to the inner wall of the second fixed tube (18).

9. The carbon fiber composite core type overhead insulated cable according to claim 4, characterized in that: The docking plate (6) and the guide ring (25) are both provided with indicating arrows (43) for judging the docking angle position.

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