A split solid aluminum alloy conductor power cable

By designing a multi-layer support structure in aluminum alloy conductor cables, the problem of lack of tension resistance and extrusion resistance during the laying process of cables is solved, and effective protection of the cable core and improved reliability of the cable are achieved.

CN118969374BActive Publication Date: 2025-03-14江苏宇久电缆科技有限公司
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Patent Information

Application Number
CN202411219304.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-03-14
Estimated Expiration
2044-09-02

AI Technical Summary

Technical Problem

The existing aluminum alloy conductor cable lacks tensile and extrusion-resistant structure during laying, resulting in damage to the cable core and requires secondary laying, which increases the installation difficulty and cost.

Method used

A split solid core aluminum alloy conductor cable is designed, adopting a multi-layer support structure, including inner and outer support sleeves, support rods, filler blocks, buffer pads and pull-resistant ropes. Through these structures, the cable core is dispersed and absorbed when the cable is under pressure and stretched, and the cable core is protected.

Benefits of technology

It effectively reduces the pressure and tensile force applied to the cable core during laying, avoids damage to the cable core, reduces the demand for secondary laying, improves the compression and tensile resistance of the cable, and extends the service life of the cable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a split solid aluminum alloy conductor power cable, which relates to the technical field of power cables and comprises a cable core, wherein the outer surface of the cable core is sheathed with a shielding layer A; in the invention, the extrusion force exerted on the protective layer is transmitted to the support rod B through the outer support sleeve, and the support rod B will transmit the pressure to the middle support sleeve after being subjected to pressure, and the middle support sleeve will transmit the pressure to the inner support sleeve through the support rod A, at which time the filling blocks A and the filling blocks B will transmit the pressure to the buffer pads A and the buffer pads B after being subjected to pressure, thereby reducing the pressure exerted on the cable core in the process of step-by-step pressure transmission, and when the cable is stretched, the tensile ropes A and the tensile ropes B will bear the stretching force for the cable, thereby preventing it from being excessively deformed during the stretching process, thereby protecting the internal structure and function of the cable, and avoiding the situation where the cable core inside the cable is damaged and needs to be laid again after the cable is laid.
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Description

Technical Field

[0001] The invention relates to the technical field of power cables, in particular to a split-type solid-core aluminum alloy conductor power cable. Background Art

[0002] Aluminum alloy conductor power cable is a cable that uses aluminum alloy as the conductor material. This cable combines the lightweight properties of aluminum and the good conductivity of copper, with high conductivity and low weight. Aluminum alloy conductor cables are commonly used in high and medium voltage power transmission.

[0003] For example, the "A Cable" with the publication number CN110010282B includes a cable core and a smooth metal sheath constructed on the outer periphery of the cable core, and a semiconducting water-resistant tape is provided between the smooth metal sheath and the cable core. Since the smooth metal sheath and the semiconducting water-resistant tape are in surface contact and have good electrical contact, no local discharge will occur when the finished cable is in operation, thereby ensuring long-term safe and reliable operation of the cable. The semiconducting water-resistant tape will not generate excessive volume current after being squeezed, thereby avoiding burns or discharge marks on the outer surface of the insulating shielding layer of the cable core. Through the surface contact between the smooth metal sheath and the semiconducting water-resistant tape, there is a better longitudinal water-blocking effect between the smooth metal sheath and the cable core, thereby effectively preventing the water seepage distance after the cable is flooded. In a preferred embodiment, an optical unit is provided inside the cable, which can monitor the operating temperature of the cable in real time, quickly locate the fault location, and display the temperature status during the accident, thereby making the fault location more accurate and convenient, and also realizing the function of optical fiber communication.

[0004] However, in the prior art, although this type of cable has the effect of facilitating the positioning of the fault, it is lacking in the compression and tensile strength of the cable. Since this type of cable does not have a compression and tensile strength structure, this will lead to damage to the cable core inside the cable due to excessive tensile strength and compression strength when the cable is rolled up and arranged. After the cable is laid, if the cable core inside the cable is damaged, the normal use of the cable cannot be guaranteed. If the cable cannot be used normally, the staff needs to disassemble and reinstall the cable, which not only increases the difficulty of cable installation and laying, but also reduces the laying efficiency. In severe cases, the laying investment cost will be increased due to the damage to the cable core. Summary of the invention

[0005] The object of the present invention is to provide a split solid aluminum alloy conductor power cable to solve the problem that the cable proposed in the above background technology is not resistant to stretching and extrusion, resulting in damage to the cable during laying and requiring secondary laying.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A split solid aluminum alloy conductor power cable, comprising a cable core, the outer surface of the cable core is sheathed with a shielding layer A, the outer surface of the shielding layer A is sheathed with an inner supporting sleeve, the outer surface of the inner supporting sleeve is fixedly mounted with a supporting rod A, the end of the supporting rod A away from the inner supporting sleeve is fixedly mounted with a middle supporting sleeve, a filling block A is arranged between the inner supporting sleeve and the outer supporting sleeve, a buffer pad A is arranged inside the filling block A, a tensile rope A is arranged inside the buffer pad A, a supporting rod B is fixedly mounted on the outer surface of the middle supporting sleeve, the end of the supporting rod B away from the middle supporting sleeve is fixedly mounted with an outer supporting sleeve, a filling block B is arranged between the outer supporting sleeve and the middle supporting sleeve, a buffer pad B is arranged inside the filling block B, a tensile rope B is arranged inside the filling block B, the outer surface of the outer supporting sleeve is sheathed with a protective layer, and the outer surface of the protective layer is coated with a self-healing coating.

[0007] Preferably, a fixing block is fixedly installed on the outer surface of the protective layer, a fixing groove is provided on the surface of the fixing block, an insert is inserted into the fixing groove, an anti-wear strip is fixedly installed on the surface of the insert, a water leakage hole is penetrated through the anti-wear strip and the insert, a fixing hole is provided on the surface of the fixing block, a fixing rod is inserted into the fixing hole, a top plate is fixedly installed on the top surface of the fixing rod, and a drainage groove is penetrated through the inside of the fixing block.

[0008] Preferably, a cable wire is arranged inside the cable core, and a shielding layer B is sheathed on the outer surface of the cable wire.

[0009] Preferably, the shielding layer A is made of metal aluminum foil, and the inner support sleeve, the middle support sleeve, the outer support sleeve, the support rod A and the support rod B are all made of polyamide.

[0010] Preferably, the filling block A and the filling block B are made of glass fiber, and the buffer pad A and the buffer pad B are made of natural rubber.

[0011] Preferably, the anti-tension rope A and the anti-tension rope B are both made of steel wire, the self-healing coating is made of hydrogel, and the protective layer is made of halogen-free polyethylene.

[0012] Preferably, the fixing block is slidably connected to the fixing groove, the anti-wear strip is made of natural rubber, the leakage hole and the drainage groove are connected, the fixing rod and the fixing hole are threadedly connected, and the fixing rod and the fixing block are slidably connected.

[0013] Preferably, the number of the fixing blocks, the inserts and the anti-wear strips is six groups, and the six groups of fixing blocks, the inserts and the anti-wear strips are evenly distributed on the outer surface of the protective layer.

[0014] Preferably, the number of the cables and shielding layers B is three groups, and the three groups of cables and shielding layers B are evenly distributed inside the cable core.

[0015] Preferably, the shielding layer B is made of metal aluminum foil, and the cable is made of aluminum alloy.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the extrusion force exerted on the protective layer is transmitted to the support rod B through the outer support sleeve. After being subjected to pressure, the support rod B will transmit the pressure to the middle support sleeve, and the middle support sleeve will transmit the pressure to the inner support sleeve through the support rod A. At this time, the filling blocks A and B will transmit the pressure to the buffer pads A and B after being subjected to pressure. In the process of step-by-step pressure transmission, the pressure exerted on the cable core is reduced. When the cable is stretched, the tensile ropes A and B will bear the tensile force for the cable, thereby preventing it from being excessively deformed during the stretching process, thereby protecting the internal structure and function of the cable, and avoiding the situation where the cable core inside the cable is damaged and needs to be laid again after the cable is laid.

[0018] 2. In the present invention, the wear resistance of the cable is improved by arranging the anti-wear strips, thereby avoiding the situation that the cable surface is damaged due to friction when the cable is laid or rolled up. Then, by rotating the top plate, the top plate will drive the fixing rod to rotate. After the fixing rod is rotated out of the fixing hole, the anti-wear strip can be drawn out from the fixing groove through the insert strip, and then a new anti-wear strip can be inserted into the fixing groove through the insert strip. At this time, the insert strip is connected to the fixing hole through a thread. After the fixing rod is connected, the replacement of the anti-wear strip can be completed. The replaceable design of the anti-wear strip has the effect of replacing the anti-wear strip alone when the anti-wear strip is seriously damaged, avoiding the need to replace the entire cable together, thereby reducing the maintenance cost of the cable. In addition, the design of the leakage hole and the drainage groove has the effect of diverting rainwater on the surface of the cable after the cable is wetted by rainwater in rainy weather, thereby avoiding the situation that the cable surface is eroded by rainwater due to the accumulation of rainwater.

[0019] 3. In the present invention, the separate design of three groups of cables and three groups of shielding layers B can arrange different cables separately, which helps to reduce electromagnetic interference and crosstalk between the cables, which is particularly important in high-frequency signal transmission, thereby helping to improve the quality and reliability of the signal. The separate design helps to prevent electrical short circuits or contact failures between different cables, and improves the overall safety of the cable system. Even if one group of cables has a problem, the other groups of cables can still work normally, thereby improving the overall reliability and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a split solid aluminum alloy conductor power cable of the present invention;

[0021] Figure 2 A split solid aluminum alloy conductor power cable according to the present invention Figure 1 The enlarged view of point A in the middle;

[0022] Figure 3 It is a front view of a cross section of a split solid aluminum alloy conductor power cable of the present invention;

[0023] Figure 4 It is an exploded schematic diagram of the internal structure of a split solid aluminum alloy conductor power cable of the present invention;

[0024] Figure 5 A split solid aluminum alloy conductor power cable according to the present invention Figure 4 The enlarged view of point B in the middle;

[0025] Figure 6 It is a schematic diagram of the exploded structure of the insert strip, the anti-wear strip and the fixing rod of a split solid aluminum alloy conductor power cable of the present invention;

[0026] Figure 7 A split solid aluminum alloy conductor power cable according to the present invention Figure 6 Enlarged view of point C in the middle;

[0027] Figure 8 It is a longitudinal cross-sectional view of a split solid aluminum alloy conductor power cable of the present invention;

[0028] Fig. 9 A split solid aluminum alloy conductor power cable according to the present invention Figure 8 The enlarged view of point D in the middle;

[0029] Fig.10 The present invention is a schematic diagram of the exploded structure of a cable core and a cable line in a split solid aluminum alloy conductor power cable.

[0030] In the figure: 1. cable core; 101. shielding layer A; 102. inner support sleeve; 103. support rod A; 104. middle support sleeve; 105. filling block A; 106. buffer pad A; 107. tensile rope A; 108. support rod B; 109. outer support sleeve; 110. filling block B; 111. buffer pad B; 112. tensile rope B; 113. protective layer; 114. self-healing coating; 200. fixing block; 201. fixing groove; 202. insert; 203. anti-wear strip; 204. leakage hole; 205. fixing hole; 206. fixing rod; 207. top plate; 208. drainage groove; 301. cable line; 302. shielding layer B. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

[0032] Example 1: Reference Figure 1-5 As shown: a split solid aluminum alloy conductor power cable, including a cable core 1, the outer surface of the cable core 1 is sleeved with a shielding layer A101, the outer surface of the shielding layer A101 is sleeved with an inner support sleeve 102, the outer surface of the inner support sleeve 102 is fixedly installed with a support rod A103, the end of the support rod A103 away from the inner support sleeve 102 is fixedly installed with a middle support sleeve 104, a filling block A105 is arranged between the inner support sleeve 102 and the outer support sleeve 109, a buffer pad A106 is arranged inside the filling block A105, and a tensile rope A107 is arranged inside the buffer pad A106, a support rod B108 is fixedly installed on the outer surface of the middle support sleeve 104, and the end of the support rod B108 away from the middle support sleeve 104 is fixedly installed with an outer support sleeve 109, and the outer support sleeve 109 and the middle support sleeve A filling block B110 is arranged between 104, a buffer pad B111 is arranged inside the filling block B110, a tensile rope B112 is arranged inside the filling block B110, the outer surface of the outer support sleeve 109 is provided with a protective layer 113, the outer surface of the protective layer 113 is coated with a self-healing coating 114, the shielding layer A101 is made of metal aluminum foil, the inner support sleeve 102, the middle support sleeve 104, the outer support sleeve 109, the support rod A103 and the support rod B108 are all made of polyamide, the filling blocks A105 and the filling blocks B110 are made of glass fiber, the buffer pads A106 and the buffer pads B111 are made of natural rubber, the tensile ropes A107 and the tensile ropes B112 are both made of steel wire, the self-healing coating 114 is made of hydrogel, and the protective layer 113 is made of halogen-free polyethylene.

[0033] In this embodiment, the extrusion force exerted on the protective layer 113 is transmitted to the support rod B108 through the outer support sleeve 109. After being subjected to pressure, the support rod B108 will transmit the pressure to the middle support sleeve 104. The middle support sleeve 104 will transmit the pressure to the inner support sleeve 102 through the support rod A103. At this time, the filling blocks A105 and B110 will transmit the pressure to the buffer pads A106 and B111 after being subjected to pressure. In the process of step-by-step transmission of pressure, the pressure will be weakened, thereby reducing the pressure exerted on the cable core 1. When the cable is stretched, the tensile rope A107 and the tensile rope B112 will bear the tensile force for the cable, thereby preventing it from being excessively deformed during the stretching process, thereby protecting the internal structure and function of the cable, and avoiding the need for secondary laying due to damage to the cable core 1 inside the cable after the cable is laid.

[0034] The self-healing coating 114 has the self-healing property of the hydrogel material. When the coating is damaged, the water can promote the self-repair of the material, so that when the outer surface of the cable is worn, it can automatically repair itself. The design of the tensile rope A107 and the tensile rope B112 as steel wires improves the tensile resistance of the cable during the laying process. The design of the inner support sleeve 102, the middle support sleeve 104, the outer support sleeve 109, the support rod A103 and the support rod B108 as polyamide has good strength and toughness, thereby ensuring that the cable has a certain The protective layer 113 is designed with halogen-free polyethylene because it has low smoke generation and environmental protection characteristics, and provides good insulation performance and chemical resistance. During the combustion process, halogen-free polyethylene will not release harmful halogen gases such as chlorine or bromine, reducing the harm to human health and the environment. Since it does not produce a lot of smoke, halogen-free polyethylene helps to improve visibility in fires and assist in escape and fire-fighting operations. At the same time, halogen-free polyethylene has excellent insulation properties and can effectively prevent cable short circuits and leakage, ensuring the safety and reliability of the cable system.

[0035] Embodiment 2: Figure 6-9As shown, a fixing block 200 is fixedly installed on the outer surface of the protective layer 113, a fixing groove 201 is provided on the surface of the fixing block 200, a plug 202 is inserted in the fixing groove 201, an anti-wear strip 203 is fixedly installed on the surface of the plug 202, a water leakage hole 204 is opened through the anti-wear strip 203 and the plug 202, a fixing hole 205 is provided on the surface of the fixing block 200, a fixing rod 206 is inserted in the fixing hole 205, a top plate 207 is fixedly installed on the top surface of the fixing rod 206, and the fixing block 200 is fixedly installed on the outer surface of the fixing block 200. A drainage groove 208 is opened through the inside, the fixed block 200 is slidably connected to the fixed groove 201, the anti-wear strip 203 is made of natural rubber, the leakage hole 204 and the drainage groove 208 are connected, the fixed rod 206 and the fixed hole 205 are connected by threads, the fixed rod 206 and the fixed block 200 are slidably connected, the number of fixed blocks 200, insertion strips 202 and anti-wear strips 203 is six, and the six groups of fixed blocks 200, insertion strips 202 and anti-wear strips 203 are evenly distributed on the outer surface of the protective layer 113.

[0036] In this embodiment, the anti-wear strip 203 is provided to improve the wear resistance of the cable, thereby avoiding the situation that the cable surface is damaged due to friction when laying or winding the cable. Then, by rotating the top plate 207, the top plate 207 will drive the fixing rod 206 to rotate. After the fixing rod 206 is rotated out of the fixing hole 205, the anti-wear strip 203 can be pulled out from the fixing groove 201 through the insertion strip 202, and then a new anti-wear strip 203 can be inserted into the fixing groove 201 through the insertion strip 202. At this time, the insertion strip 202 is connected to the fixing hole 205 through the thread. After the fixing rod 206 is connected, the replacement of the anti-wear strip 203 can be completed. The replaceable design of the anti-wear strip 203 has the effect of replacing the anti-wear strip 203 alone when the anti-wear strip 203 is seriously damaged, avoiding the need to replace the entire cable together, thereby reducing the maintenance cost of the cable.

[0037] The design of the water leakage hole 204 and the drainage groove 208 can guide the rainwater on the cable surface after the cable is wetted by rainwater in rainy weather, thereby avoiding the cable surface from being eroded by rainwater due to the accumulation of rainwater.

[0038] Embodiment 3: According to Fig.10 As shown, a cable wire 301 is arranged inside the cable core 1, and a shielding layer B302 is sheathed on the outer surface of the cable wire 301. There are three groups of cable wires 301 and shielding layers B302. The three groups of cable wires 301 and shielding layers B302 are evenly distributed inside the cable core 1. The material of the shielding layer B302 is metal aluminum foil, and the material of the cable wire 301 is aluminum alloy.

[0039] In this embodiment, the separate design of three groups of cables 301 and three groups of shielding layers B302 can arrange different cables 301 separately, which helps to reduce electromagnetic interference and crosstalk between the cables 301, which is particularly important in high-frequency signal transmission, thereby helping to improve the quality and reliability of the signal. The separate design helps to prevent electrical short circuits or contact failures between different cables 301, and improve the overall safety of the cable system. Even if one group of cables 301 has a problem, the cables 301 of other groups can still work normally, thereby improving the overall reliability and stability of the system.

[0040] Through the design of the aluminum alloy material of the cable 301, due to the lower density of the aluminum alloy material, the weight of the aluminum alloy cable 301 can be significantly reduced compared to copper, which makes the aluminum alloy cable more convenient in transportation, installation and operation, reduces the relevant labor intensity and transportation costs, and the raw material cost of aluminum alloy materials is much lower than that of copper, so aluminum alloy cables are usually more economical than copper cables. In the case of large-scale use, aluminum alloy cables can significantly reduce the total cost of the cable system. Although the conductivity of aluminum alloy is not as good as that of copper, its electrical conductivity is still relatively high. Aluminum alloy cables can provide sufficient conductivity to a certain extent and are suitable for medium and low voltage power transmission applications.

[0041] The use method and working principle of the device: During the cable winding process, the cable will be subjected to different degrees of pressure due to the accumulation of the cable on the cable drum. When the cable is under pressure, the outer support sleeve 109 will transfer the extrusion force exerted on the protective layer 113 to the support rod B108. After being subjected to pressure, the support rod B108 will transfer the pressure to the middle support sleeve 104. The middle support sleeve 104 will transfer the pressure to the inner support sleeve 102 through the support rod A103. At this time, the filling blocks A105 and B110 will transfer the pressure to the buffer pads A106 and B111 after being subjected to pressure. In the process of step-by-step transmission of pressure, the pressure will be weakened, thereby reducing the pressure exerted on the cable core 1. When the cable is stretched, the tensile rope A107 and the tensile rope B112 will bear the tensile force for the cable, thereby preventing it from being excessively deformed during the stretching process, thereby protecting the internal structure and function of the cable, and avoiding the situation where the cable core 1 inside the cable is damaged after the cable is laid, resulting in the need for secondary laying.

[0042] The self-healing coating 114 has the self-healing property of the hydrogel material. When the coating is damaged, the moisture can promote the self-repair of the material, so that the outer surface of the cable can be automatically repaired when it is worn; the design of the tensile rope A107 and the tensile rope B112 as steel wire material improves the tensile resistance of the cable during the laying process; the design of the inner support sleeve 102, the middle support sleeve 104, the outer support sleeve 109, the support rod A103 and the support rod B108 as polyamide has good strength and toughness, thereby ensuring that the cable has a certain toughness. The protective layer 113 is designed with halogen-free polyethylene, because halogen-free polyethylene has low smoke generation and environmental protection characteristics, and provides good insulation performance and chemical resistance. During the combustion process, halogen-free polyethylene will not release harmful halogen gases, such as chlorine or bromine, reducing the harm to human health and the environment. Since no large amount of smoke is generated, halogen-free polyethylene helps to improve visibility in fires, help escape and fire-fighting operations, and halogen-free polyethylene has excellent insulation properties, and can also effectively prevent cable short circuits and leakage, ensuring the safety and reliability of the cable system.

[0043] When the cable is rolled up or laid, the cable will rub against the ground or the contact object, causing the protective layer 113 on the cable surface to be damaged. At this time, the anti-wear strip 203 improves the wear resistance of the cable, thereby avoiding the situation where the cable surface is damaged due to friction when laying or rolling the cable.

[0044] When the anti-wear strip 203 needs to be replaced due to severe wear, it is only necessary to rotate the top plate 207, which will drive the fixing rod 206 to rotate. After the fixing rod 206 is rotated out of the fixing hole 205, the anti-wear strip 203 can be pulled out from the fixing groove 201 through the insert 202, and then a new anti-wear strip 203 can be inserted into the fixing groove 201 through the insert 202. At this time, the insert 202 is connected to the fixing hole 205 through the thread. After the fixing rod 206 is connected, the replacement of the anti-wear strip 203 can be completed. The replaceable design of the anti-wear strip 203 has the effect of replacing the anti-wear strip 203 alone when the anti-wear strip 203 is seriously damaged, avoiding the need to replace the entire cable together, thereby reducing the maintenance cost of the cable.

[0045] In rainy weather, rain will wet the cable 301, and some of the rain will accumulate at the corners of the cable 301. At this time, the design of the leakage hole 204 and the drainage groove 208 plays the effect of guiding the rain on the surface of the cable after the rain wets the cable in rainy weather, thereby avoiding the situation where the cable is eroded by rain due to the accumulation of rain on the cable surface;

[0046] When a cable 301 is damaged or fails, the separate design of the three groups of cables 301 and the three groups of shielding layers B302 serves to arrange the different cables 301 separately, which not only helps to reduce electromagnetic interference and crosstalk between the cables 301, thereby helping to improve the quality and reliability of the signal, but the separate design also helps to prevent electrical short circuits or contact failures between different cables 301, thereby improving the overall safety of the cable system. Even if one group of cables 301 has a problem, the other groups of cables 301 can still operate normally, thereby improving the overall reliability and stability of the system.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A split solid aluminum alloy conductor power cable, comprising a cable core (1), characterized in that: The outer surface of the cable core (1) is sleeved with a shielding layer A (101), the outer surface of the shielding layer A (101) is sleeved with an inner support sleeve (102), a support rod A (103) is fixedly mounted on the outer surface of the inner support sleeve (102), a middle support sleeve (104) is fixedly mounted on one end of the support rod A (103) away from the inner support sleeve (102), a filling block A (105) is arranged between the inner support sleeve (102) and the outer support sleeve (109), a buffer pad A (106) is arranged inside the filling block A (105), and a tensile rope A (107) is arranged inside the buffer pad A (106), A support rod B (108) is fixedly installed on the outer surface of the middle support sleeve (104); an outer support sleeve (109) is fixedly installed on one end of the support rod B (108) away from the middle support sleeve (104); a filling block B (110) is arranged between the outer support sleeve (109) and the middle support sleeve (104); a buffer pad B (111) is arranged inside the filling block B (110); a tensile rope B (112) is arranged inside the filling block B (110); a protective layer (113) is sleeved on the outer surface of the outer support sleeve (109); and a self-repairing coating (114) is coated on the outer surface of the protective layer (113); The extrusion force exerted on the protective layer (113) is transmitted to the support rod B (108) through the outer support sleeve (109). After being subjected to pressure, the support rod B (108) transmits the pressure to the middle support sleeve (104). The middle support sleeve (104) transmits the pressure to the inner support sleeve (102) through the support rod A (103). At this time, the filling block A (105) and the filling block B (110) transmit the pressure to the buffer pad A (106) and the buffer pad B (111). During the step-by-step transmission of pressure, the pressure is weakened, thereby reducing the pressure exerted on the cable core (1). When the cable is stretched, the tensile rope A (107) and the tensile rope B (112) will bear the tensile force for the cable, thereby preventing the cable from being excessively deformed during the stretching process. A fixing block (200) is fixedly installed on the outer surface of the protective layer (113); a fixing groove (201) is provided on the surface of the fixing block (200); a plugging strip (202) is inserted into the interior of the fixing groove (201); an anti-wear strip (203) is fixedly installed on the surface of the plugging strip (202); a water leakage hole (204) is provided through the interior of the anti-wear strip (203) and the plugging strip (202); a fixing hole (205) is provided on the surface of the fixing block (200); a fixing rod (206) is inserted into the interior of the fixing hole (205); a top plate (207) is fixedly installed on the top surface of the fixing rod (206); and a drainage groove (208) is provided through the interior of the fixing block (200); The anti-wear strip (203) is provided to improve the wear resistance of the cable, thereby preventing the cable surface from being damaged due to friction when laying or winding the cable. The top plate (207) is then rotated to drive the fixing rod (206) to rotate. After the fixing rod (206) is rotated out of the fixing hole (205), the anti-wear strip (203) can be drawn out of the fixing groove (201) through the inserting strip (202), and a new anti-wear strip (203) can be inserted into the fixing groove (201) through the inserting strip (202). At this time, the inserting strip (202) is connected to the fixing hole (205) through a thread. After the fixing rod (206) is connected, the replacement of the anti-wear strip (203) can be completed. The fixing block (200) is slidably connected to the fixing groove (201), the anti-wear strip (203) is made of natural rubber, the water leakage hole (204) and the drainage groove (208) are connected, the fixing rod (206) and the fixing hole (205) are threadedly connected, and the fixing rod (206) and the fixing block (200) are slidably connected.

2. A split solid aluminum alloy conductor power cable according to claim 1, characterized in that: A cable wire (301) is arranged inside the cable core (1), and a shielding layer B (302) is sheathed on the outer surface of the cable wire (301).

3. A split solid aluminum alloy conductor power cable according to claim 1, characterized in that: The shielding layer A (101) is made of metal aluminum foil, and the inner support sleeve (102), the middle support sleeve (104), the outer support sleeve (109), the support rod A (103) and the support rod B (108) are all made of polyamide.

4. A split solid aluminum alloy conductor power cable according to claim 1, characterized in that: The material of the filling block A (105) and the filling block B (110) is glass fiber, and the material of the buffer pad A (106) and the buffer pad B (111) is natural rubber.

5. The split solid aluminum alloy conductor power cable according to claim 1, characterized in that: The materials of the tensile rope A (107) and the tensile rope B (112) are both steel wires, the material of the self-repairing coating (114) is hydrogel, and the material of the protective layer (113) is halogen-free polyethylene.

6. A split solid aluminum alloy conductor power cable according to claim 1, characterized in that: The number of the fixing blocks (200), the inserts (202) and the anti-wear strips (203) is six groups, and the six groups of fixing blocks (200), the inserts (202) and the anti-wear strips (203) are evenly distributed on the outer surface of the protective layer (113).

7. A split solid aluminum alloy conductor power cable according to claim 2, characterized in that: The number of the cables (301) and shielding layers B (302) is three groups, and the three groups of cables (301) and shielding layers B (302) are evenly distributed inside the cable core (1).

8. The split solid aluminum alloy conductor power cable according to claim 2, characterized in that: The material of the shielding layer B (302) is metal aluminum foil, and the material of the cable (301) is aluminum alloy.

Citation Information

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