Environment-friendly long-service-life cross-linked polyethylene insulated overhead cable

Abstract

The invention discloses an environment-friendly long-life crosslinked polyethylene insulated overhead cable, and relates to the technical field of cables, the cable comprises a polyethylene insulating layer, a sliding ring groove plate is embedded in the inner side of the polyethylene insulating layer, an annular sliding groove is formed in the inner side of the sliding ring groove plate, an upper rolling column is slidably mounted on the inner side of the annular sliding groove, and a lower rolling column is slidably mounted on the inner side of the upper rolling column. The device is scientific and reasonable in structure and safe and convenient to use, the heat dissipation speed is increased when heat dissipation is needed, a certain amount of heat is generated for heat preservation in cold days, the heat dissipation efficiency is improved, the heat dissipation efficiency is improved, the heat dissipation efficiency is improved, and the service life of the device is prolonged. And then the temperature of the cable is increased in cold days, so that the polyethylene insulating layer can be prevented from being embrittled and damaged, the service life of the cable is prolonged, the cable is prevented from being damaged, and the stable proceeding of power transmission is further ensured.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to an environmentally friendly high-life cross-linked polyethylene insulated overhead cable. Background Art

[0002] Overhead cables are divided into multi-core and single-core cables according to actual usage. Cross-linked polyethylene insulated cables are cables suitable for distribution networks and high-voltage transmission. They have advantages that PVC insulated cables cannot match. They are simple in structure, light in weight, heat-resistant, strong in load capacity, non-melting, chemically resistant, and have high mechanical strength. However, in extremely cold weather, under extremely low temperature conditions, the insulation material of the cable may become brittle, resulting in a decrease in insulation performance. Especially for some conventional insulation materials, low temperature may make them more fragile, thereby reducing the voltage resistance of the cable. Plateau insulated overhead cables are one of them, which need to face huge temperature differences between day and night.

[0003] However, the temperature control performance of current power transmission cables is mostly weak. In some extremely cold weather, it is difficult to maintain a certain temperature, which causes the insulation material of the cable to become brittle. With strong winds, the cable will shake, and the brittle insulation layer will be in danger of breaking. Cable damage affects power transmission, and in the high temperature environment during the day, heat is difficult to dissipate quickly. High temperature causes increased internal resistance, affecting power transmission efficiency. In order to avoid the above technical problems, it is indeed necessary to provide an environmentally friendly, high-life cross-linked polyethylene insulated overhead cable to overcome the above defects in the prior art. Summary of the invention

[0004] The present invention provides an environmentally friendly, high-life cross-linked polyethylene insulated overhead cable, which can effectively solve the problem mentioned in the above background technology that the temperature control performance of current power transmission cables is mostly weak, and in some extremely cold weather, it is difficult to maintain a certain temperature, which leads to brittleness of the insulation material of the cable. With strong winds, the cable will shake, and the brittle insulation layer will be in danger of rupture, causing cable damage that affects power transmission. In the high temperature environment during the day, heat is difficult to dissipate quickly, and the high temperature causes an increase in internal resistance that affects power transmission efficiency.

[0005] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly, long-life cross-linked polyethylene insulated overhead cable, comprising a polyethylene insulation layer, a temperature control component being installed inside the polyethylene insulation layer;

[0006] The temperature control assembly includes a sliding ring groove plate;

[0007] A sliding ring groove plate is embedded in the inner side of the polyethylene insulation layer, a ring groove is provided in the inner side of the sliding ring groove plate, an upper rolling column is slidably installed in the inner side of the ring groove, a fixed rod is rotatably installed in the inner side of the upper rolling column, a lower rolling column is rotatably installed in the inner side of the ring groove at a position symmetrical to the upper rolling column, and a friction shoe is sleeved on the outer side of the fixed rod;

[0008] An outer temperature increasing groove cylinder is welded to one end face of the sliding ring groove plate, a positioning column is embedded in the inner side of the ring groove, a support rod is welded to the inner side of the sliding ring groove plate, an inner temperature increasing groove cylinder is welded to one end of the support rod, heat dissipation holes are provided on the outer side of the outer temperature increasing groove cylinder, a ceramic block is embedded in the inner side of the friction shoe, and an embedding groove is provided at the inner side of the friction shoe and at the corresponding position of the ceramic block.

[0009] According to the above technical solution, a heat-equalizing rubber is embedded in the middle of the inner side of the sliding ring groove plate, a stabilizing groove is opened on the inner side of the heat-equalizing rubber, a load-bearing flame-retardant rope is embedded on the inner side of the stabilizing groove, a fixing tube is embedded on the inner side of the heat-equalizing rubber, a clamping groove is opened on the inner side of the fixing tube, a stabilizing triangular groove tube is installed on the inner side of the clamping groove, an insulating rubber is embedded on the inner side of the fixing tube, and a battery cell is embedded on the inner side of the insulating rubber.

[0010] According to the above technical solution, a plurality of support rods are provided, and the plurality of support rods are welded at equal angles on the inner side of the sliding ring groove plate, and support rods are welded at equal angles on the outer sides of both ends of the inner temperature increasing groove cylinder.

[0011] According to the above technical solution, two groups of upper rolling cylinders and lower rolling cylinders are provided, and the two groups of upper rolling cylinders and lower rolling cylinders are symmetrically installed at the inner side of the ring slide groove.

[0012] According to the above technical solution, the inner end surface of the friction shoe is tangent to the inner temperature increasing groove barrel, and the inner side surface of the outer temperature increasing groove barrel is tangent to the outer end surface of the friction shoe;

[0013] The plurality of sliding ring groove plates, friction shoes, outer temperature increasing groove cylinders and inner temperature increasing groove cylinders are sleeved at equal distances at the outer sides of the insulating rubber.

[0014] According to the above technical solution, a plurality of heat dissipation holes are opened, and the plurality of heat dissipation holes are evenly opened on the inner side of the outer heating groove barrel, and heat dissipation holes are opened through the inner side of the inner heating groove barrel at positions corresponding to the heat dissipation holes on the inner side of the outer heating groove barrel.

[0015] According to the above technical solution, the inner diameter of the heat-isolating rubber is equal to the diameter of the fixing tube, and a plurality of the clamping grooves are provided, and the plurality of clamping grooves are provided at equal angles at internal positions of the fixing tube.

[0016] According to the above technical solution, a connection assembly is installed on the outer side of the polyethylene insulation layer;

[0017] The connecting assembly includes a limiting groove cylinder;

[0018] The outer side of the polyethylene insulation layer is sleeved with a limiting groove cylinder, the inner side of the limiting groove cylinder is rotatably mounted with an angle adjustment ring plate, and the inner side of the angle adjustment ring plate is provided with a limiting sliding groove;

[0019] A return spring is spot-welded on the inner side of the limit slide groove, the inner side of the limit slide groove is slidably connected to a limit slide column, a paddle is welded on the outer side of the limit slide column, and a paddle groove is provided on the outer side of the angle adjustment ring plate at a position corresponding to the paddle;

[0020] An angle groove is provided on the inner side of the limiting groove cylinder, a connecting plate is welded on the outer side of the angle adjustment ring plate, a rotation groove is provided on the inner side of the connecting plate, a rotating column is rotatably installed on the inner side of the rotating groove, a stop plate is welded on the bottom end of the rotating column, a nut is welded on the top end of the rotating column, and a threaded groove is provided on the inner side of the nut.

[0021] According to the above technical solution, a movable rotation groove is opened on the outer side of the limiting groove cylinder at a position corresponding to the angle adjustment ring plate, and the angle adjustment ring plate is rotatably connected to the limiting groove cylinder through the movable rotation groove.

[0022] According to the above technical solution, there are two toggle grooves, which are symmetrically arranged at the inner side of the angle adjustment ring plate, and there are several angle grooves, which are arranged at equal angles at the inner side of the limiting groove cylinder.

[0023] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0024] 1. A temperature control component is provided. When the cable is used at high power, the heat-dissipating rubber will evenly distribute the heat to the entire cable, and the heat can be transferred to the cold area where the cable is installed for dissipation, and the heat can be dissipated to the polyethylene insulation layer through the heat dissipation holes for rapid heat dissipation. Then, when the cable is used at night or in a high-cold area, the volume of the ceramic block will shrink, thereby releasing the position restriction of the friction tile. Then, when it is cold at night, the wind generated by the temperature difference between day and night will continuously blow the cable. At this time, the friction tile with the position restriction released will continue to slide, and the heat generated by the friction of the external heating groove will be transferred outward, thereby The insulation layer is insulated, and then part of the heat generated by the internal heating groove will be transferred to the inside for insulation, and the other part of the heat will be transferred from the heat dissipation holes to the polyethylene insulation layer for further insulation, thereby maintaining the temperature of the cable and accelerating the heat dissipation speed when heat dissipation is needed. Then, a certain amount of heat is generated in cold weather for insulation, thereby ensuring that heat dissipation is accelerated at high temperatures to reduce the internal resistance of the cable, reduce power transmission losses and increase power transmission efficiency. Then, increasing the cable temperature in cold weather can not only prevent the polyethylene insulation layer from brittle damage, but also extend the service life of the cable, prevent cable damage and further ensure stable power transmission.

[0025] 2. A connecting component is provided, so that the angle iron can be carried to a high altitude. At this time, the operator can pull the two paddles to overcome the elastic force of the return spring, thereby pulling out the limit sliding column from the inner side of the angle groove, thereby releasing the angle restriction on the angle adjustment ring plate, and then the angle adjustment ring plates on the outer sides of multiple cables can be rotated toward the middle position of multiple cables, and then the limit sliding columns are inserted into the inner sides of the corresponding angle grooves, so that the multiple angle adjustment ring plates can be fixed, and then the operator can insert the screw on the angle iron into the inner side of the threaded groove. At this time, the operator can continuously turn the nut to tighten the nut on the outer side of the screw, and the connecting plate can be quickly connected to the angle iron. At this time, the operator can quickly fix the positions of multiple cables, thereby reducing the time of the operator's high-altitude operations and speeding up the efficiency of cable installation.

[0026] In summary, the cable is supported from the inside out by the cooperation of the polyethylene insulation layer and multiple load-bearing flame-retardant ropes in different positions, and each fixed anchor point will squeeze the inside of the cable. At this time, the fixing cylinder is squeezed from various angles, and multiple support points can be formed by stabilizing the triangular groove cylinder, and then transmitted to the entire fixing cylinder through the inner ring of the fixing cylinder. At this time, the compressive force of the stress point can be dispersed, and then the cable can be quickly fixed through the connecting plate, so that the cable can be installed stably and quickly, further ensuring the stable power transmission of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the installation structure of the load-bearing flame-retardant rope of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the temperature control assembly of the present invention;

[0031] Figure 4 It is a schematic diagram of the installation structure of the external temperature increasing groove drum of the present invention;

[0032] Figure 5 It is a schematic diagram of the installation structure of the ceramic card block of the present invention;

[0033] Figure 6 is a schematic diagram of the structure of the connection assembly of the present invention;

[0034] Figure 7 It is a schematic diagram of the installation structure of the stop plate of the present invention;

[0035] Figure 8 It is a schematic diagram of the installation structure of the nut of the present invention;

[0036] Numbers in the figure: 1, polyethylene insulation layer;

[0037] 2. Temperature control assembly; 201. Sliding ring groove plate; 202. Heat-saturating rubber; 203. Stable groove; 204. Load-bearing flame-retardant rope; 205. Fixed cylinder; 206. Snap-in groove; 207. Stable triangular groove cylinder; 208. Insulating rubber; 209. Battery cell; 210. Ring slide groove; 211. Upper rolling column; 212. Fixed rod; 213. Lower rolling column; 214. Friction shoe; 215. External temperature increase groove cylinder; 216. Positioning column; 217. Support rod; 218. Internal temperature increase groove cylinder; 219. Heat dissipation hole; 220. Ceramic block; 221. Embedded groove;

[0038] 3. Connecting assembly; 301. Limiting groove cylinder; 302. Angle adjustment ring plate; 303. Limiting slide groove; 304. Return spring; 305. Limiting sliding column; 306. Paddle; 307. Paddle groove; 308. Angle groove; 309. Connecting plate; 310. Rotating groove; 311. Rotating column; 312. Stop plate; 313. Nut; 314. Threaded groove. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0040] Example: Figure 1-8 As shown, the present invention provides a technical solution, an environmentally friendly long-life cross-linked polyethylene insulated overhead cable, comprising a polyethylene insulation layer 1, and a temperature control component 2 is installed inside the polyethylene insulation layer 1;

[0041] The temperature control assembly 2 includes a sliding ring groove plate 201, a heat-equalizing rubber 202, a stabilizing groove 203, a load-bearing flame-retardant rope 204, a fixing cylinder 205, a clamping groove 206, a stabilizing triangular groove cylinder 207, an insulating rubber 208, a battery cell 209, a ring slide groove 210, an upper rolling column 211, a fixing rod 212, a lower rolling column 213, a friction shoe 214, an outer temperature-increasing groove cylinder 215, a positioning column 216, a support rod 217, an inner temperature-increasing groove cylinder 218, a heat dissipation hole 219, a ceramic block 220 and an embedding groove 221;

[0042] A sliding ring groove plate 201 is embedded in the inner side of the polyethylene insulation layer 1, and a ring groove 210 is opened on the inner side of the sliding ring groove plate 201. Two groups of upper rolling columns 211 and lower rolling columns 213 are provided. The two groups of upper rolling columns 211 and lower rolling columns 213 are symmetrically installed at the inner side of the ring groove 210, which is conducive to the rapid sliding of the upper rolling columns 211 and the lower rolling columns 213. The inner side of the ring groove 210 is slidably installed with an upper rolling column 211, and the inner side of the upper rolling column 211 is rotatably installed with a fixing rod 212. A lower rolling column 213 is rotatably mounted on the inner side of the ring groove 210 at a position symmetrical to the upper rolling column 211, a friction shoe 214 is sleeved on the outer side of the fixed rod 212, an outer temperature increasing groove cylinder 215 is welded on one end face of the sliding ring groove plate 201, a positioning column 216 is embedded in the inner side of the ring groove 210, a support rod 217 is welded on the inner side of the sliding ring groove plate 201, and a plurality of support rods 217 are provided, and a plurality of support rods 217 are welded at equal angles at the inner side of the sliding ring groove plate 201, and the inner temperature increasing groove cylinder 215 is welded on the outer side of the sliding ring groove plate 201. The outer sides of both ends of 18 are welded with support rods 217 at equal angles to facilitate fixing the friction shoe 214. One end of the support rod 217 is welded with an inner temperature increasing groove cylinder 218. The inner end face of the friction shoe 214 is tangent to the inner temperature increasing groove cylinder 218, and the inner side face of the outer temperature increasing groove cylinder 215 is tangent to the outer end face of the friction shoe 214, which is convenient for rapid heating. A plurality of sliding ring groove plates 201, friction shoe 214, outer temperature increasing groove cylinder 215 and inner temperature increasing groove cylinder 218 are equidistantly sleeved at the outer side of the insulating rubber 208. A heat dissipation hole 219 is provided on the outer side of the heating groove barrel 215. There are a plurality of heat dissipation holes 219, which are evenly provided on the inner side of the outer heating groove barrel 215. Heat dissipation holes 219 are provided through the inner side of the inner heating groove barrel 218 and the corresponding positions of the heat dissipation holes 219 on the inner side of the outer heating groove barrel 215, which is beneficial to the rapid transfer of heat. A ceramic block 220 is embedded on the inner side of the friction shoe 214, and an embedding groove 221 is provided on the inner side of the friction shoe 214 and the corresponding positions of the ceramic block 220.

[0043] A heat-equalizing rubber 202 is embedded in the middle of the inner side of the sliding ring groove plate 201, a stabilizing groove 203 is provided on the inner side of the heat-equalizing rubber 202, a load-bearing flame-retardant rope 204 is embedded on the inner side of the stabilizing groove 203, a fixing tube 205 is embedded on the inner side of the heat-equalizing rubber 202, a clamping groove 206 is provided on the inner side of the fixing tube 205, the inner diameter of the heat-equalizing rubber 202 is equal to the diameter of the fixing tube 205, a plurality of clamping grooves 206 are provided, and a plurality of clamping grooves 206 are provided at equal angles at the inner position of the fixing tube 205 to facilitate the support of the cable, a stabilizing triangular groove tube 207 is installed on the inner side of the clamping groove 206, an insulating rubber 208 is embedded on the inner side of the fixing tube 205, and a battery cell 209 is embedded on the inner side of the insulating rubber 208.

[0044] A connection assembly 3 is installed on the outer side of the polyethylene insulation layer 1;

[0045] The connecting assembly 3 includes a limiting groove cylinder 301, an angle adjustment ring plate 302, a limiting sliding groove 303, a return spring 304, a limiting sliding column 305, a paddle 306, a toggle groove 307, an angle groove 308, a connecting plate 309, a rotation groove 310, a rotation column 311, a stop plate 312, a nut 313 and a thread groove 314;

[0046] The outer side of the polyethylene insulation layer 1 is sleeved with a limiting groove cylinder 301, and an angle adjustment ring plate 302 is rotatably installed on the inner side of the limiting groove cylinder 301. A movable rotating groove is provided at the outer side of the limiting groove cylinder 301 corresponding to the angle adjustment ring plate 302. The angle adjustment ring plate 302 is rotatably connected to the limiting groove cylinder 301 through the movable rotating groove, which is conducive to quickly adjusting the angle. A limiting sliding groove 303 is provided on the inner side of the angle adjustment ring plate 302, and a return spring 304 is spot-welded on the inner side of the limiting sliding groove 303. A limiting sliding column 305 is slidably connected to the inner side of the limiting sliding groove 303, and a paddle 306 is welded on the outer side of the limiting sliding column 305. A toggle groove is provided on the outer side of the angle adjustment ring plate 302 at the corresponding position of the paddle 306 307, an angle groove 308 is provided on the inner side of the limiting groove cylinder 301, and two toggle grooves 307 are provided, and the two toggle grooves 307 are symmetrically provided at the inner side of the angle adjustment ring plate 302. A plurality of angle grooves 308 are provided, and a plurality of angle grooves 308 are provided at equal angles on the inner side of the limiting groove cylinder 301, so as to fix different angles conveniently. A connecting plate 309 is welded on the outer side of the angle adjustment ring plate 302, and a rotating groove 310 is provided on the inner side of the connecting plate 309, and a rotating column 311 is rotatably installed on the inner side of the rotating groove 310, and a stop plate 312 is welded on the bottom end of the rotating column 311, and a nut 313 is welded on the top end of the rotating column 311, and a threaded groove 314 is provided on the inner side of the nut 313.

[0047] The working principle and use process of the present invention are as follows: First, when installing an overhead cable, it is generally installed in the middle of two iron towers. At this time, the greater the distance between the two iron towers, the greater the influence of gravity on the cable itself. During installation, since multiple load-bearing flame-retardant ropes 204 are arranged on the inner side of the stable groove 203, after fixing the two ends of the cable during cable installation, the polyethylene insulation layer 1 and multiple load-bearing flame-retardant ropes 204 at different positions cooperate to support the cable from the inside out, and each fixed anchor point will squeeze the inside of the cable. At this time, the fixed cylinder 205 is squeezed from various angles, and multiple support points can be formed by stabilizing the triangular groove cylinder 207, and then transmitted to the entire fixed cylinder 205 through the inner ring of the fixed cylinder 205. At this time, the compressive force of the force-bearing point can be dispersed to prevent long-term compression of the battery cell 209, resulting in deformation of the battery cell 209, and reduce falling and bending of the battery cell 209 by the fixed anchor point, thereby ensuring that the cable can stably transmit power;

[0048] Then, when the cable is used at high power in places with large temperature differences in plateau areas, the battery core 209 will generate a large amount of heat. At this time, the heat will be transferred to the fixing tube 205, and then transmitted to the heat-equalizing rubber 202 through the fixing tube 205. Then, the heat will be evenly distributed to the entire cable from the heat-equalizing rubber 202. At this time, the heat can be transferred to cold areas for dissipation, and can be dissipated to the position of the polyethylene insulation layer 1 through the heat dissipation holes 219 for rapid heat dissipation. At this time, due to the high temperature during the day, the ceramic block 220 embedded in the groove 221 will expand due to the heat. At this time, the friction tile 214 can be fixed. At this time, although the cable will shake during the day, the friction tile 214 is fixed and will not slide. Then, when the temperature in the plateau area drops at night, the volume of the ceramic block 220 will Retract, thereby releasing the position restriction of the friction shoe 214. Then, when it is cold at night, the wind generated by the temperature difference between day and night will continuously blow the cable. At this time, the friction shoe 214 whose position restriction is released will continuously slide, and the upper rolling column 211 and the lower rolling column 213 at both ends of the friction shoe 214 will rotate on the inner side of the annular slide groove 210, thereby driving the friction shoe 214 to slide and rub on the inner side of the outer heating groove cylinder 215 and the outer side of the inner heating groove cylinder 218 through the fixed rod 212. At this time, a large amount of heat will be generated by the friction. The heat generated by the friction of the outer heating groove cylinder 215 will be transferred outward to keep the polyethylene insulation layer 1 warm. Then, part of the heat generated by the inner heating groove cylinder 218 will be transferred to the inside for insulation, and the other part of the heat will be transferred from the heat dissipation hole 219 to the polyethylene insulation layer 1 for further insulation.

[0049] When the cable is used at high power, the battery core 209 will generate a large amount of heat, which will be transferred to the fixing tube 205, and then transferred to the heat-equalizing rubber 202 through the fixing tube 205, and then the heat will be evenly distributed to the entire cable from the heat-equalizing rubber 202, so that the heat can be transferred to the cold area where the cable is installed for dissipation, and can be dissipated to the position of the polyethylene insulation layer 1 through the heat dissipation holes 219 for rapid heat dissipation. Then, when the cable is used at night or in a high-cold area, the volume of the ceramic block 220 will shrink, thereby releasing the position restriction on the friction tile 214. Then, when it is cold at night, the wind generated by the temperature difference between day and night will continuously blow the cable, and the friction tile 214, which has been released from the position restriction, will continuously slide. The heat generated by the friction of the outer heating groove drum 215 will be transferred outward to insulate the polyethylene insulation layer 1, and then part of the heat generated by the inner heating groove drum 218 will be transferred to the inside for insulation, and the other part of the heat will be transferred from the heat dissipation hole 219 to the polyethylene insulation layer 1 for further insulation, thereby maintaining the temperature of the cable and accelerating the heat dissipation speed when heat dissipation is required. Then, a certain amount of heat will be generated in cold weather for insulation, thereby ensuring that heat dissipation is accelerated at high temperatures to reduce the internal resistance of the cable, reduce power transmission losses and increase power transmission efficiency. Then, increasing the cable temperature in cold weather can not only prevent the polyethylene insulation layer 1 from embrittlement and damage, but also extend the service life of the cable, prevent cable damage and further ensure stable power transmission;

[0050] Finally, when the cables are being installed, multiple cables need to be connected and fixed with angle irons. At this time, operators are required to perform high-altitude operations. People need to fix the angle irons on the outside of the cables at high altitudes, but the limiting groove cylinder 301 can be sleeved on the corresponding position on the outside of the cables on the ground before the cables are installed, and then the cables are installed at high altitudes. At this time, after the installation of multiple cables is completed, people can carry the angle irons to high altitudes. At this time, the operator can pull the two paddles 306 to overcome the elastic force of the return spring 304, thereby pulling the limiting sliding column 305 out from the inner side of the angle groove 308, thereby releasing the angle limit on the angle adjustment ring plate 302, and then The angle adjustment ring plates 302 on the outside of the multiple cables are rotated toward the middle position of the multiple cables, and then the limiting sliding columns 305 are inserted into the inner side of the corresponding angle grooves 308, so that the multiple angle adjustment ring plates 302 can be fixed. Then the operator can insert the screw on the angle iron into the inner side of the threaded groove 314. At this time, the operator can continuously rotate the nut 313 to tighten the nut 313 on the outside of the screw. At this time, the connecting plate 309 can be quickly connected to the angle iron. At this time, the operator can quickly fix the positions of the multiple cables, thereby reducing the operator's high-altitude working time and speeding up the cable installation efficiency.

[0051] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An environmentally friendly, long-life cross-linked polyethylene insulated overhead cable, comprising a polyethylene insulation layer (1), characterized in that: A temperature control component (2) is installed on the inner side of the polyethylene insulation layer (1); The temperature control component (2) comprises a sliding ring groove plate (201); A sliding ring groove plate (201) is embedded in the inner side of the polyethylene insulation layer (1), a ring groove (210) is provided in the inner side of the sliding ring groove plate (201), an upper rolling column (211) is slidably mounted in the inner side of the ring groove (210), a fixed rod (212) is rotatably mounted in the inner side of the upper rolling column (211), a lower rolling column (213) is rotatably mounted in the inner side of the ring groove (210) at a position symmetrical to the upper rolling column (211), and a friction shoe (214) is sleeved on the outer side of the fixed rod (212); An outer temperature increasing groove barrel (215) is welded to one end face of the sliding ring groove plate (201), a positioning column (216) is embedded in the inner side of the ring groove (210), a support rod (217) is welded to the inner side of the sliding ring groove plate (201), an inner temperature increasing groove barrel (218) is welded to one end of the support rod (217), a heat dissipation hole (219) is provided on the outer side of the outer temperature increasing groove barrel (215), a ceramic block (220) is embedded in the inner side of the friction shoe (214), and an embedding groove (221) is provided at a position corresponding to the ceramic block (220) on the inner side of the friction shoe (214).

2. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 1, characterized in that: A heat-equalizing rubber (202) is embedded in the middle of the inner side of the sliding ring groove plate (201), a stabilizing groove (203) is provided on the inner side of the heat-equalizing rubber (202), a load-bearing flame-retardant rope (204) is embedded on the inner side of the stabilizing groove (203), a fixing cylinder (205) is embedded on the inner side of the heat-equalizing rubber (202), a clamping groove (206) is provided on the inner side of the fixing cylinder (205), a stabilizing triangular groove cylinder (207) is installed on the inner side of the clamping groove (206), an insulating rubber (208) is embedded on the inner side of the fixing cylinder (205), and a battery cell (209) is embedded on the inner side of the insulating rubber (208).

3. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 1, characterized in that: A plurality of support rods (217) are provided, and the plurality of support rods (217) are welded at equal angles to the inner side of the sliding ring groove plate (201), and support rods (217) are welded at equal angles to the outer sides of both ends of the inner temperature increasing groove cylinder (218).

4. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 1, characterized in that: The upper rolling cylinder (211) and the lower rolling cylinder (213) are each provided in two groups, and the two groups of upper rolling cylinders (211) and lower rolling cylinders (213) are symmetrically installed at the inner side of the ring slide groove (210).

5. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 1, characterized in that: The inner end surface of the friction shoe (214) is tangent to the inner temperature increasing groove barrel (218), and the inner side surface of the outer temperature increasing groove barrel (215) is tangent to the outer end surface of the friction shoe (214); The plurality of sliding ring groove plates (201), friction shoes (214), outer temperature increasing groove cylinders (215) and inner temperature increasing groove cylinders (218) are sleeved at equal distances on the outer side of the insulating rubber (208).

6. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 5, characterized in that: A plurality of heat dissipation holes (219) are provided, and the plurality of heat dissipation holes (219) are evenly provided on the inner side of the outer temperature increasing groove barrel (215). Heat dissipation holes (219) are provided through the inner side of the inner temperature increasing groove barrel (218) at positions corresponding to the heat dissipation holes (219) on the inner side of the outer temperature increasing groove barrel (215).

7. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 2, characterized in that: The inner diameter of the heat-isolating rubber (202) is equal to the diameter of the fixing tube (205), and a plurality of the clamping grooves (206) are provided. The plurality of clamping grooves (206) are provided at equal angles at internal positions of the fixing tube (205).

8. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 1, characterized in that: A connection assembly (3) is installed on the outer side of the polyethylene insulation layer (1); The connecting assembly (3) comprises a limiting groove cylinder (301); The outer side of the polyethylene insulation layer (1) is sleeved with a limiting groove cylinder (301), the inner side of the limiting groove cylinder (301) is rotatably mounted with an angle adjustment ring plate (302), and the inner side of the angle adjustment ring plate (302) is provided with a limiting sliding groove (303); A return spring (304) is spot-welded on the inner side of the limiting sliding groove (303); a limiting sliding column (305) is slidably connected to the inner side of the limiting sliding groove (303); a paddle (306) is welded on the outer side of the limiting sliding column (305); and a paddle groove (307) is provided on the outer side of the angle adjustment ring plate (302) at a position corresponding to the paddle (306); An angle groove (308) is provided on the inner side of the limit groove cylinder (301), a connecting plate (309) is welded on the outer side of the angle adjustment ring plate (302), a rotation groove (310) is provided on the inner side of the connecting plate (309), a rotation column (311) is rotatably mounted on the inner side of the rotation groove (310), a stop plate (312) is welded on the bottom end of the rotation column (311), a nut (313) is welded on the top end of the rotation column (311), and a thread groove (314) is provided on the inner side of the nut (313).

9. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 8, characterized in that: A movable rotation groove is provided on the outer side of the limiting groove cylinder (301) at a position corresponding to the angle adjustment ring plate (302), and the angle adjustment ring plate (302) is rotatably connected to the limiting groove cylinder (301) via the movable rotation groove.

10. The environmentally friendly, long-life cross-linked polyethylene insulated overhead cable according to claim 8, characterized in that: There are two toggle grooves (307) which are symmetrically arranged at the inner side of the angle adjustment ring plate (302); there are a plurality of angle grooves (308) which are arranged at equal angles at the inner side of the limiting groove cylinder (301).

Images