Aerial insulated cable capable of increasing capacity

Abstract

The utility model discloses a capacity-increasing aerial insulated cable, which belongs to the technical field of aerial insulated cables and comprises a capacity-increasing aerial cable body and a bending-resistant component. The capacity-increasing overhead cable body comprises an insulating layer, a flame-retardant layer, a wear-resistant layer, an anti-corrosion layer, a capacity-increasing wire core protection layer and a capacity-increasing wire core body; the flame-retardant layer is arranged in the insulating layer through the bending-resistant assembly; the wear-resistant layer is arranged in the flame-retardant layer; the anti-corrosion layer is arranged in the wear-resistant layer; the capacity-increasing wire core protection layer is arranged in the anti-corrosion layer; a plurality of capacity-increasing wire core bodies are arranged in the capacity-increasing wire core protection layer in an annular array; the bending-resistant assembly comprises a connecting ring, a buffering piece and a buffering groove. The plurality of connecting rings are sleeved on the flame-retardant layer in an annular array; the plurality of buffer pieces are fixedly arranged on the opposite surfaces of the two adjacent connecting rings in an annular array; the capacity-increasing overhead insulated cable has the advantages that the structural design is simple and reasonable, the bending resistance of the capacity-increasing overhead cable body can be improved, and the practicability is relatively high.

Description

Technical Field

[0001] The utility model belongs to the technical field of overhead insulated cables, in particular to an overhead insulated cable with increased capacity. Background Technique

[0002] An overhead insulated cable (overhead cable) is an overhead conductor equipped with an insulating layer and a protective outer skin. It is a special cable manufactured using a production process similar to that of cross-linked cables. It is a new power transmission method between overhead conductors and underground cables. Overhead cables are all single-core and have the main characteristics of high power supply reliability, good power supply safety, convenient erection and maintenance, and reasonable economy.

[0003] At present, when most of the overhead insulated cables with increased capacity on the market are arranged, they are easily bent excessively, resulting in damage to the outer layer of the overhead insulated cable, thus affecting the normal use of the overhead insulated cable. For example, a kind of overhead cable with increased capacity provided by the Chinese utility model patent with the publication number of CN218676522U includes a cable body. An insulating layer is arranged on the surface of the cable body. A wear-resistant layer is fixedly connected to the bottom of the insulating layer. An anti-corrosion layer is fixedly connected to the bottom of the wear-resistant layer. A flame-retardant layer is fixedly connected to the bottom of the anti-corrosion layer. A waterproof layer is fixedly connected to the bottom of the flame-retardant layer. A matrix is fixedly connected to the bottom of the waterproof layer. A stranded aluminum core is arranged inside the cable body. An iron core is arranged inside the cable body. The material of the insulating layer is insulating rubber, which improves the insulation performance of the cable body and makes the cable body not easily damaged by the external environment. By setting the insulating layer, wear-resistant layer, anti-corrosion layer, flame-retardant layer, and waterproof layer on the surface of the matrix in a mutually integrated manner, it plays a role in protecting the cable body, thereby extending the service stability and service life of the cable body.

[0004] Although the above-mentioned overhead insulated cable with increased capacity has good performance, most of the existing overhead insulated cables with increased capacity are easily bent excessively during arrangement, resulting in damage to the outer layer of the overhead insulated cable with increased capacity, thus affecting the normal use of the overhead insulated cable with increased capacity. Content of the Utility Model

[0005] The purpose of the utility model is to provide an overhead insulated cable with increased capacity to solve the problems raised in the background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An expandable overhead insulated cable, comprising an expandable overhead cable body and a bending-resistant component; wherein, the expandable overhead cable body includes an insulating layer, a flame-retardant layer, a wear-resistant layer, an anti-corrosion layer, an expandable core protective layer, and an expandable core body; the flame-retardant layer is arranged in the insulating layer through the bending-resistant component; the wear-resistant layer is arranged in the flame-retardant layer; the anti-corrosion layer is arranged in the wear-resistant layer; the expandable core protective layer is arranged in the anti-corrosion layer; a plurality of the expandable core bodies are arranged in a circular array in the expandable core protective layer; wherein, the bending-resistant component includes a connecting ring, a buffer member, and a buffer groove; a plurality of the connecting rings are sleeved on the flame-retardant layer in a circular array; a plurality of the buffer members are fixedly arranged on opposite surfaces of adjacent two connecting rings in a circular array; and a buffer groove is formed on the buffer member.

[0007] As a preferred embodiment, the buffer member is an arc-shaped V-shaped structure, and adjacent two of the buffer members form an X-shaped structure.

[0008] As a preferred embodiment, the buffer groove is an arc-shaped structure.

[0009] As a preferred embodiment, it further includes a pressure-bearing component; the pressure-bearing component is arranged on the buffer member.

[0010] As a preferred embodiment, the pressure-bearing component includes a connecting plate and a pressure-bearing member; two of the connecting plates are symmetrically fixed on the buffer member, and the two connecting plates are connected by the pressure-bearing member.

[0011] As a preferred embodiment, the connecting plate is inclined, and the opening direction formed by the two connecting plates is arranged close to the direction of the buffer groove.

[0012] As a preferred embodiment, the pressure-bearing member is an arc-shaped structure, and the pressure-bearing member and the two connecting plates form an Ω-shaped structure.

[0013] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0014] For this expandable overhead insulated cable, by setting the bending-resistant component, when the expandable overhead cable body is bent, the bending force received by the expandable overhead cable body will act on the buffer member, enabling the buffer member to initially buffer the bending force. At the same time, the arc-shaped structure of the buffer groove can not only buffer the bending force again but also improve the buffer pressure-bearing performance of the buffer member. Compared with the prior art, the structure design of the present utility model is simple and reasonable. By dispersing and bearing the bending force received by the expandable overhead cable body in multiple ways for buffering, while improving the bending resistance of the expandable overhead cable body, the service life of the expandable overhead cable body is also extended, and the practicability is relatively strong.

[0015] The compatible overhead insulated cable, by setting the connecting plate and the pressure-bearing member, when the buffer groove buffers the bending force, the bending force will be dispersed and transmitted to the pressure-bearing member through the connecting plate, enabling the pressure-bearing member to further bear and buffer the bending force. At the same time, it can further improve the buffer pressure-bearing performance of the buffer member, greatly enhancing the practicability of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

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

[0018] Figure 2 is a cross-sectional view of the overall structure of the present invention;

[0019] Figure 3 is a split cross-sectional view of the overall structure of the present invention;

[0020] Figure 4 is a schematic diagram of a partial structure of the present invention;

[0021] Figure 5 is a split schematic diagram of a partial structure of the present invention;

[0022] Figure 6 is of the present invention Figure 2 enlarged schematic diagram at A in.

[0023] Description of the reference numerals in the drawings:

[0024] In the figure:

[0025] 1. Compatible overhead cable body; 2. Bending-resistant component; 3. Pressure-bearing component;

[0026] 101. Insulation layer; 102. Flame-retardant layer; 103. Wear-resistant layer; 104. Anti-corrosion layer; 105. Compatible core protection layer; 106. Compatible core body;

[0027] 201. Connection ring; 202. Buffer member; 203. Buffer groove;

[0028] 301. Connecting plate; 302. Pressure-bearing member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In the following description, numerous specific details are given to provide a more thorough understanding of the present utility model. However, it will be apparent to those skilled in the art that the present utility model can be implemented without one or more of these details. In other instances, in order to avoid confusion with the present utility model, some technical features well known in the art are not described.

[0030] Unless otherwise defined, the directions such as up, down, left, right, front, back, inner, and outer involved herein are based on the up, down, left, right, front, back, inner, and outer directions in the figures shown by the present utility model, and are hereby explained together.

[0031] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., subject to actual needs.

[0032] Please refer to Figures 1 to 6 As shown, this embodiment includes an enlarged-capacity overhead cable body 1 and a bending-resistant component 2; wherein, the enlarged-capacity overhead cable body 1 includes an insulating layer 101, a flame-retardant layer 102, a wear-resistant layer 103, an anti-corrosion layer 104, an enlarged-capacity core protection layer 105, and an enlarged-capacity core body 106; the flame-retardant layer 102 is arranged in the insulating layer 101 through the bending-resistant component 2; the wear-resistant layer 103 is arranged in the flame-retardant layer 102; the anti-corrosion layer 104 is arranged in the wear-resistant layer 103; the enlarged-capacity core protection layer 105 is arranged in the anti-corrosion layer 104; several enlarged-capacity core bodies 106 are arranged in the enlarged-capacity core protection layer 105 in a circular array;

[0033] Among them, the bending-resistant component 2 includes a connecting ring 201, a buffer member 202, and a buffer groove 203; six connecting rings 201 are sleeved on the flame-retardant layer 102 in a circular array; eight buffer members 202 are fixedly arranged on the opposite surfaces of adjacent two connecting rings 201 in a circular array; wherein, the buffer member 202 is an arc-shaped V-shaped structure, and adjacent two buffer members 202 form an X-shaped structure; a buffer groove 203 is formed on the buffer member 202; wherein, the buffer groove 203 is an arc-shaped structure.

[0034] By providing the bending-resistant component 2 in the present utility model, when the enlarged-capacity overhead cable body 1 is bent, the bending force received by the enlarged-capacity overhead cable body 1 will act on the buffer member 202, enabling the buffer member 202 to initially buffer the bending force. At the same time, the arc-shaped structure of the buffer groove 203 can not only buffer the bending force again but also improve the buffer pressure-bearing performance of the buffer member 202. Compared with the prior art, the structural design of the present utility model is simple and reasonable. By dispersing and bearing the bending force received by the enlarged-capacity overhead cable body 1 in multiple ways, while improving the bending resistance performance of the enlarged-capacity overhead cable body 1, the service life of the enlarged-capacity overhead cable body 1 is also extended, and the practicability is relatively strong.

[0035] As a preferred embodiment, it further includes a pressure-bearing component 3; the pressure-bearing component 3 is arranged on the buffer 202; wherein, the pressure-bearing component 3 includes a connecting plate 301 and a pressure-bearing member 302; two connecting plates 301 are symmetrically fixed on the buffer 202, and the two connecting plates 301 are connected by the pressure-bearing member 302; wherein, the connecting plate 301 is inclined, and the opening direction formed by the two connecting plates 301 is arranged close to the buffer groove 203 direction; wherein, the pressure-bearing member 302 is an arched structure, and the pressure-bearing member 302 and the two connecting plates 301 form a Ω-shaped structure.

[0036] By setting the connecting plate 301 and the pressure-bearing member 302 in the present utility model, when the buffer groove 203 buffers the bending force, the bending force will be dispersed and transmitted to the pressure-bearing member 302 through the connecting plate 301, so that the pressure-bearing member 302 can further bear and buffer the bending force. At the same time, it can also further improve the buffer pressure-bearing performance of the buffer 202, greatly improving the practicability of the present utility model.

[0037] Working principle

[0038] For the capacitive overhead insulated cable, by setting the insulating layer 101, it can play an insulating effect during use. By setting the flame-retardant layer 102, it can prevent the capacitive overhead cable body 1 from burning. By setting the wear-resistant layer 103, the wear resistance of the capacitive overhead cable body 1 is increased. By setting the anti-corrosion layer 104, it can play an anti-corrosion role when the air quality is poor. By setting the capacitive core protection layer 105, the capacitive core body 106 can be protected;

[0039] When the capacitive overhead cable body 1 is bent, the bending force received by the capacitive overhead cable body 1 will act on the buffer 202, so that the buffer 202 can initially buffer the bending force. At the same time, the arc-shaped structure of the buffer groove 203 can not only buffer the bending force again, but also improve the buffer pressure-bearing performance of the buffer 202. When the buffer groove 203 buffers the bending force, the bending force will be dispersed and transmitted to the pressure-bearing member 302 through the connecting plate 301, so that the pressure-bearing member 302 can further bear and buffer the bending force. At the same time, it can also further improve the buffer pressure-bearing performance of the buffer 202.

[0040] It should be noted that, in this article, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An expandable aerial insulated cable, characterized in that, Including: The capacity-increased overhead cable body (1); Among them, the capacity-increased overhead cable body (1) includes an insulating layer (101), a flame-retardant layer (102), a wear-resistant layer (103), an anti-corrosion layer (104), a capacity-increased core protection layer (105) and a capacity-increased core body (106); the flame-retardant layer (102) is arranged in the insulating layer (101) through a bending-resistant component (2); the wear-resistant layer (103) is arranged in the flame-retardant layer (102); the anti-corrosion layer (104) is arranged in the wear-resistant layer (103); the capacity-increased core protection layer (105) is arranged in the anti-corrosion layer (104); several capacity-increased core bodies (106) are arranged in a circular array in the capacity-increased core protection layer (105); Among them, the bending-resistant component (2) includes a connecting ring (201), a buffer member (202) and a buffer groove (203); several connecting rings (201) are sleeved on the flame-retardant layer (102) in a circular array; several buffer members (202) are fixedly arranged on the opposite surfaces of adjacent two connecting rings (201) in a circular array; a buffer groove (203) is formed in the buffer member (202).

2. The extrudable aerial insulated cable according to claim 1, wherein The buffer member (202) is of an arc-shaped V structure, and adjacent two buffer members (202) form an X-shaped structure.

3. The extrudable aerial insulated cable according to claim 1, wherein The buffer groove (203) is of an arc-shaped structure.

4. The extrudable aero-insulated cable according to claim 2, characterized in that, It also includes: A pressure-bearing component (3), arranged on the buffer member (202).

5. The a kind of compatible overhead insulated cable according to claim 4, characterized in that, The pressure-bearing component (3) includes: Connecting plates (301), two in number, symmetrically fixed on the buffer member (202), and the two connecting plates (301) are connected by a pressure-bearing member (302).

6. The extrudable aero-insulated cable according to claim 5, wherein The connecting plate (301) is inclined, and the opening direction formed by the two connecting plates (301) is arranged close to the direction of the buffer groove (203).

7. The a kind of compatible overhead insulated cable according to claim 6, characterized in that, The pressure-bearing member (302) is of a bow-shaped structure, and the pressure-bearing member (302) and the two connecting plates (301) form an Ω-shaped structure.

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