Bundled overhead insulated cable

Abstract

The utility model relates to the field of aerial cables, and discloses a bunched aerial insulated cable which comprises a first wire core, a second wire core is arranged on one side of the first wire core, a third wire core is arranged on one side of the second wire core, and the first wire core, the second wire core and the third wire core are the same in structure. The outer sides of the first wire core, the second wire core and the third wire core are sleeved with a filling assembly, and the filling assembly comprises a connecting core, a first supporting strip, a second supporting strip and a third supporting strip. According to the utility model, the connecting cores are arranged among the first wire core, the second wire core and the third wire core, and the outer sides of the connecting cores are connected with the first isolation pad, the second isolation pad and the third isolation pad, so that the isolation pads are respectively positioned among the steel ladle belt layers of the adjacent wire cores, and the condition of abrasion caused by mutual extrusion and friction of the wire cores is avoided; the supporting strips are connected to the outer sides of the connecting cores, the supporting strips are located between the adjacent wire cores, the wire cores can be positioned, the arc-shaped grooves are formed in the supporting strips, the wire cores can be wrapped, and protection on the wire cores is enhanced.

Description

Technical Field

[0001] The present application relates to the field of overhead cables, and in particular to a bundled overhead insulated cable. Background Art

[0002] Overhead cables are overhead conductors equipped with an insulating layer and a protective outer sheath. They are a special type of cable manufactured using a production process similar to that of cross-linked cables. They are 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). They have the main characteristics of high power supply reliability, good power supply safety, convenient installation and maintenance, and reasonable economy. Its main technical parameters include weather resistance, insulation level, inner and outer semi-conductive shielding layers.

[0003] For example, the Chinese utility model patent with the announcement number CN212484985U discloses a bundled overhead insulated cable, including a support frame, a core connected to the outside of the support frame, an insulating layer provided on the outside of the core, a shielding layer provided on the outside of the insulating layer, a magnesium-aluminum compound heat-resistant layer provided on the outside of the shielding layer, and a first fixed block provided on the outside of the magnesium-aluminum compound heat-resistant layer. The overhead insulated cable is provided with an insulating layer, a shielding layer, a magnesium-aluminum compound heat-resistant layer, a quicklime moisture-proof protective layer, and an armored outer wear-resistant layer, which can provide high temperature resistance, moisture resistance, insulation, wear resistance and other protections to the cable core, greatly enhancing the service life of the cable; when the cable is vibrated, the rubber block will slide in the first slot and the second slot, so that the first fixed block and the second fixed block squeeze the rubber block, so that the rubber block undergoes a certain deformation, provides a certain buffer for the cable core, and effectively protects the cable core.

[0004] With regard to the above-mentioned related technologies, since overhead cables are laid in the air, when their own weight is large, the cables are prone to breakage, especially in rainy and snowy weather. Rain and snow increase the weight of the cables, making them more likely to break. In the above-mentioned scheme, rubber blocks are added to the inside of the cable to protect the wire core. The rubber blocks are heavy, which increases the weight of the cable, making it easy to break and damage. In addition, the existing cables currently have an armored outer layer for protection, and the installation of rubber blocks is not practical enough. In addition, the scheme does not provide sufficient protection for friction between the wire cores. Therefore, an overhead insulated cable with good protection effect and strong practicality is needed. Utility Model Content

[0005] In order to solve the problem raised in the background technology, the present application provides a bundled overhead insulated cable.

[0006] The present application provides a bundled overhead insulated cable adopting the following technical solution:

[0007] A bundled overhead insulated cable, comprising a first core, a second core is disposed on one side of the first core, a third core is disposed on one side of the second core, the first core, the second core and the third core have the same structure, a filling assembly is sleeved on the outer side of the first core, the second core and the third core, the filling assembly comprises a connecting core, a first support bar, a second support bar and a third support bar, the first support bar is fixedly connected to one side of the connecting core, the second support bar is fixedly connected to the other side of the connecting core, the third support bar is fixedly connected to the other side of the connecting core, and an armored outer layer is sleeved on the outer side of the filling assembly;

[0008] Through the above technical solution, a filling component is arranged between the wire core and the outer armor outer layer. The filling component can be made of lightweight foam material to reduce the weight of the cable and avoid breakage when it is suspended.

[0009] Preferably, the connecting core is located between the first wire core, the second wire core, and the third wire core;

[0010] Through the above technical solution, the connecting core can be used as a connecting rib between the three wire cores and support the three wire cores.

[0011] Preferably, the first support bar is located between the first wire core and the second wire core, the second support bar is located between the second wire core and the third wire core, and the third support bar is located between the third wire core and the first wire core;

[0012] Through the above technical solution, the three support bars are respectively located between adjacent wire cores, which can support the three wire cores and avoid misalignment.

[0013] Preferably, a first spacer is fixedly connected to one side of the connecting core, a side wall of the first spacer is fixedly connected to the first support bar, a second spacer is fixedly connected to one side of the connecting core, a side wall of the second spacer is fixedly connected to the second support bar, a third spacer is fixedly connected to one side of the connecting core, and a side wall of the third spacer is fixedly connected to the third support bar.

[0014] Preferably, the first spacer is located between the first wire core and the second wire core, the second spacer is located between the second wire core and the third wire core, and the third spacer is located between the third wire core and the first wire core;

[0015] Through the above technical solution, through the provision of multiple spacers, the spacers are located between the steel clad tape layers of adjacent wire cores, thereby avoiding friction loss of adjacent wire cores.

[0016] Preferably, an arc-shaped groove is provided on the side wall of the first support bar, a support arc plate is fixedly provided on the inner side of the arc-shaped groove, a holding groove is provided on the side wall of the support arc plate, the holding groove is clamped on the outer side of the first wire core, and the first support bar, the second support bar and the third support bar have the same structure;

[0017] Through the above technical solution, the arc-shaped groove can limit the position of wire cores of different types and reduce the impact of external extrusion on the wire cores. The supporting arc plate can stably extrude wire cores of different types to avoid shaking and twisting.

[0018] Preferably, the first wire core includes a conductor, an inner semiconductor shielding layer is sheathed on the outer side of the conductor, an insulating layer is sheathed on the outer side of the inner semiconductor shielding layer, an outer semiconductor shielding layer is sheathed on the outer side of the insulating layer, a copper tape shielding layer is sheathed on the outer side of the outer semiconductor shielding layer, a steel tape layer is sheathed on the outer side of the copper tape shielding layer, and the steel tape layer is located on one side of the first spacer and the third spacer.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. In this solution, when assembling the cable, a connecting core is arranged between the first core, the second core and the third core, and the first spacer, the second spacer and the third spacer are connected through the outer side of the connecting core, so that the spacers are respectively located between the steel-clad tape layers of adjacent cores, thereby avoiding the wear caused by mutual extrusion and friction of the cores;

[0021] 2. In this solution, the first support bar, the second support bar and the third support bar are connected to the outside of the connecting core. The support bar is located between adjacent wire cores, can position the wire core, and can be used as a connecting rib. The support bar is provided with an arc groove, which can be used to wrap the wire core to enhance the protection of the wire core;

[0022] 3. In this solution, a supporting arc plate is arranged on the inner side of the arc-shaped groove, so that the supporting arc plate can stably extrude and limit the wire cores of different models, and the solution is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0024] Figure 2 is a three-dimensional schematic diagram of a first wire core of an embodiment of the application;

[0025] Figure 3 is a three-dimensional schematic diagram of a filling assembly according to an embodiment of the application;

[0026] Figure 4 It is an application example Figure 3 A magnified schematic diagram of center A.

[0027] Explanation of the reference numerals: 1. first wire core; 11. conductor; 12. inner semiconductor shielding layer; 13. insulating layer; 14. outer semiconductor shielding layer; 15. copper tape shielding layer; 16. steel tape layer; 2. second wire core; 3. third wire core; 4. filling assembly; 41. connecting core; 411. first spacer; 412. second spacer; 413. third spacer; 42. first support bar; 421. arc-shaped groove; 422. supporting arc plate; 423. holding groove; 43. second support bar; 44. third support bar; 5. armored outer layer. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 This application is described in further detail.

[0029] The present application embodiment discloses a bundled overhead insulated cable. Figure 1 and Figure 3 As shown, specifically, a bundled overhead insulated cable comprises a first core 1, a second core 2 is arranged on one side of the first core 1, a third core 3 is arranged on one side of the second core 2, the first core 1, the second core 2 and the third core 3 have the same structure, a filling assembly 4 is sleeved on the outer side of the first core 1, the second core 2 and the third core 3, the filling assembly 4 comprises a connecting core 41, a first support bar 42, a second support bar 43 and a third support bar 44, one side of the connecting core 41 is fixedly connected with the first support bar 42, the other side of the connecting core 41 is fixedly connected with the second support bar 43, and the other side of the connecting core 41 is fixedly connected with the third support bar Bar 44; the connecting core 41 is located between the first core 1, the second core 2, and the third core 3, and can be used as a connecting rib of the three cores; the first support bar 42 is located between the first core 1 and the second core 2, and can support the two cores at this location; the second support bar 43 is located between the second core 2 and the third core 3, and can support the two cores similarly; the third support bar 44 is located between the third core 3 and the first core 1, and can support the two cores similarly. By setting up the three support bars, the three cores can be stably isolated and supported to avoid twisting and entanglement of the cores; the outer side of the filling component 4 is provided with an armored outer layer 5.

[0030] Reference Figure 2 and Figure 4As shown, specifically, a first spacer 411 is fixedly connected to one side of the connecting core 41, a side wall of the first spacer 411 is fixedly connected to the first support bar 42, a second spacer 412 is fixedly connected to one side of the connecting core 41, a side wall of the second spacer 412 is fixedly connected to the second support bar 43, a third spacer 413 is fixedly connected to one side of the connecting core 41, and a side wall of the third spacer 413 is fixedly connected to the third support bar 44; the first spacer 411 is located between the first wire core 1 and the second wire core 2, and can isolate the outer layers of the first wire core 1 and the second wire core 2 to avoid friction loss of the outer layers of the two wire cores, and the second spacer 412 is located between the second core 2 and the third core 3, and the third spacer 413 is located between the third core 3 and the first core 1, so as to avoid friction loss on the surface of adjacent cores; the first core 1 includes a conductor 11, an inner semiconductor shielding layer 12 is sleeved on the outer side of the conductor 11, an insulating layer 13 is sleeved on the outer side of the inner semiconductor shielding layer 12, an outer semiconductor shielding layer 14 is sleeved on the outer side of the insulating layer 13, a copper tape shielding layer 15 is sleeved on the outer side of the outer semiconductor shielding layer 14, a steel clad tape layer 16 is sleeved on the outer side of the copper tape shielding layer 15, and the steel clad tape layer 16 is located on one side of the first spacer 411 and the third spacer 413, and the spacer is used to isolate and protect the steel clad tape layer 16.

[0031] Reference Figure 3 and Figure 4 As shown, specifically, an arc-shaped groove 421 is opened on the side wall of the first support bar 42, and the arc-shaped groove 421 can wrap the wire core for protection to enhance the protection of the wire core. A supporting arc plate 422 is fixedly provided on the inner side of the arc-shaped groove 421, and a holding groove 423 is provided on the side wall of the supporting arc plate 422. The holding groove 423 is engaged with the outer side of the first wire core 1. The supporting arc plate 422 can be used to stably support and limit the wire cores of different models, which is highly practical. The first support bar 42, the second support bar 43 and the third support bar 44 have the same structure.

[0032] The implementation principle of a bundled overhead insulated cable in an embodiment of the present application is as follows: a connecting core 41 is added between the cores of the cable, and the steel clad tape layers 16 of adjacent cores are respectively isolated and protected by the first spacer 411, the second spacer 412 and the third spacer 413 of the connecting core 41 to avoid mutual friction loss between adjacent cores, and support bars are connected to the outside of the spacers. While the adjacent cores are supported and separated by three support bars, the arc-shaped grooves 421 on the side walls of the support bars can wrap the cores for protection, thereby improving the protective performance, and the supporting arc plates 422 on the inner walls of the arc-shaped grooves 421 can stably install cores of different sizes, and the cable is highly practical. After installation, the armored outer layer 5 can be mounted on the outside of the three support bars.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bundled overhead insulated cable, comprising a first core (1), characterized in that: A second wire core (2) is provided on one side of the first wire core (1), and a third wire core (3) is provided on one side of the second wire core (2); the first wire core (1), the second wire core (2) and the third wire core (3) have the same structure; a filling component (4) is provided on the outer sides of the first wire core (1), the second wire core (2) and the third wire core (3); the filling component (4) comprises a connecting core (41), a first supporting bar (42), a second supporting bar (43) and a third supporting bar (44); the first supporting bar (42) is fixedly connected to one side of the connecting core (41), the second supporting bar (43) is fixedly connected to the other side of the connecting core (41), and the third supporting bar (44) is fixedly connected to the other side of the connecting core (41); and an armored outer layer (5) is provided on the outer side of the filling component (4).

2. A bundled overhead insulated cable according to claim 1, characterized in that: The connecting core (41) is located between the first wire core (1), the second wire core (2), and the third wire core (3).

3. A bundled overhead insulated cable according to claim 2, characterized in that: The first support bar (42) is located between the first core (1) and the second core (2), the second support bar (43) is located between the second core (2) and the third core (3), and the third support bar (44) is located between the third core (3) and the first core (1).

4. The bundled overhead insulated cable according to claim 3, characterized in that: A first spacer (411) is fixedly connected to one side of the connecting core (41), and a side wall of the first spacer (411) is fixedly connected to a first support bar (42). A second spacer (412) is fixedly connected to one side of the connecting core (41), and a side wall of the second spacer (412) is fixedly connected to a second support bar (43). A third spacer (413) is fixedly connected to one side of the connecting core (41), and a side wall of the third spacer (413) is fixedly connected to a third support bar (44).

5. The bundled overhead insulated cable according to claim 4, characterized in that: The first spacer (411) is located between the first core (1) and the second core (2), the second spacer (412) is located between the second core (2) and the third core (3), and the third spacer (413) is located between the third core (3) and the first core (1).

6. A bundled overhead insulated cable according to claim 5, characterized in that: An arc-shaped groove (421) is provided on the side wall of the first support bar (42), a support arc plate (422) is fixedly provided on the inner side of the arc-shaped groove (421), a pressing groove (423) is provided on the side wall of the support arc plate (422), and the pressing groove (423) is engaged with the outer side of the first wire core (1), and the first support bar (42), the second support bar (43) and the third support bar (44) have the same structure.

7. The bundled overhead insulated cable according to claim 6, characterized in that: The first wire core (1) comprises a conductor (11), an inner semiconductor shielding layer (12) is sheathed on the outer side of the conductor (11), an insulating layer (13) is sheathed on the outer side of the inner semiconductor shielding layer (12), an outer semiconductor shielding layer (14) is sheathed on the outer side of the insulating layer (13), a copper tape shielding layer (15) is sheathed on the outer side of the outer semiconductor shielding layer (14), a steel tape layer (16) is sheathed on the outer side of the copper tape shielding layer (15), and the steel tape layer (16) is located on one side of the first spacer (411) and the third spacer (413).

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