CN217061573U

CN217061573U - Cross-linked polyethylene insulated overhead cable

Info

Publication number: CN217061573U
Application number: CN202220964668.8U
Authority: CN
Inventors: 赵利江; 鲁建豪; 李丙锁
Original assignee: Longgang Cable Group Co ltd
Current assignee: Longgang Cable Group Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-07-26
Anticipated expiration: 2032-04-25

Abstract

The utility model relates to the technical field of overhead cables, in particular to a crosslinked polyethylene insulated overhead cable, which comprises an interwoven wire, the middle part of the interweaving lead is provided with a hollow groove, a steel cable is arranged inside the hollow groove, the peripheral end surface of the steel cable is wrapped with an inner insulating layer, the outer end face of the interweaving lead is wrapped with an outer insulating layer, the outer end face of the outer insulating layer is movably sleeved with a plurality of groups of fixing components, the fixing component comprises two groups of arc lantern rings which are arranged oppositely, supporting plates are arranged on the opposite end surfaces of the two groups of lantern rings, left and right penetrating type sliding grooves are arranged on the upper end surfaces of one group of supporting plates, sliding blocks are connected inside the sliding grooves in a sliding mode, this insulating aerial [ insulated ] cable of crosslinked polyethylene has solved and has had to exist among the prior art mostly the bearing of wire itself, easily takes place the fracture, and inconvenient shortcoming such as fix.

Description

Cross-linked polyethylene insulated overhead cable

Technical Field

The utility model relates to an overhead cable technical field especially relates to an insulating overhead cable of crosslinked polyethylene.

Background

An overhead cable is an overhead conductor with an insulating layer and a protective sheath, is a special cable manufactured by a production process similar to a crosslinked cable, is a novel power transmission mode between the overhead conductor and an underground cable, is a single-core overhead cable, can be divided into a duralumin wire structure, an aluminum alloy wire structure, a steel core or aluminum alloy core supporting structure, a self-supporting three-core combined structure and the like according to different structures, has the main characteristics of high power supply reliability, good power supply safety, convenient erection and maintenance, reasonable economy and the like, has the main technical parameters of weather resistance, insulation level, inner and outer semi-conductive shielding layers, is widely applied to power transmission at home and abroad, but the existing overhead cables are mostly loaded by the conductor per se, the conductor is easy to break due to long-time pulling, the use safety is influenced, and the existing overhead cables are inconvenient to fix, making it inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and exist among the prior art and be mostly the bearing of wire itself, easily breaking occur, and inconvenient shortcoming such as fix, and the insulating aerial [ insulated ] cable of crosslinked polyethylene who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cross-linked polyethylene insulated overhead cable is designed, and comprises an interwoven wire, wherein a hollow groove is formed in the middle of the interwoven wire, a steel cable is arranged in the hollow groove, an inner insulating layer is wrapped on the peripheral end face of the steel cable, an outer insulating layer is wrapped on the peripheral end face of the interwoven wire, a plurality of groups of fixing components are movably sleeved on the peripheral end face of the outer insulating layer, each fixing component comprises two groups of arc-shaped lantern rings which are oppositely arranged, supporting plates are arranged on the opposite end faces of the two groups of lantern rings, a left-right penetrating type sliding groove is formed in the upper end face of one group of the supporting plates, a sliding block is connected in the sliding groove in a sliding manner, the upper end of the sliding block penetrates through the sliding groove to be connected with the other group of the supporting plates, a plug is arranged on the lower end face of one group of the supporting plates, one end of the plug penetrates through the supporting plates and is movably pinned in the sliding block, and a lifting ring assembly is arranged on the end face of the outer side of the supporting plate.

Preferably, the inner part of the outer insulating layer is nested with a metal braid layer.

Preferably, the lower end of the bolt is provided with a permanent magnet, the peripheral end face of the support plate is wrapped with a metal layer, and the permanent magnet is connected with the metal layer in an attraction mode.

Preferably, the lifting ring assembly comprises a rotary groove, the rotary groove is fixedly connected with the supporting plate, a rotary block is rotatably connected inside the rotary groove, a connecting rod penetrating through the rotary groove and extending to the upper portion of the rotary groove is arranged on the upper end face of the rotary block, and a lifting ring is arranged on the upper end face of the connecting rod.

Preferably, the suspension ring is an annular structure made of conductive metal.

The utility model provides a pair of crosslinked polyethylene insulated overhead cable, beneficial effect lies in:

the steel cable can play a bearing effect, reduce the tension on the interwoven wires, prolong the service life and prevent the potential safety hazard caused by fracture due to overlarge tension;

through the fixed subassembly that sets up, can conveniently fix with external object, pass rings with outside cable, can conveniently hoist.

Drawings

Fig. 1 is a schematic view of a main structure of a crosslinked polyethylene insulated overhead cable according to the present invention;

fig. 2 is a schematic cross-sectional structural view of a cross-linked polyethylene insulated overhead cable according to the present invention;

fig. 3 is an enlarged schematic structural diagram of the a zone of the insulated overhead cable of crosslinked polyethylene according to the present invention.

In the figure: 1. interweaving the conducting wires; 2. a wire rope; 3. an inner insulating layer; 4. an outer insulating layer; 5. weaving layer; 6. a collar; 7. a support plate; 8. a chute; 9. a slider; 10. a bolt; 11. rotating the groove; 12. rotating the block; 13. a connecting rod; 14. a lifting ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a cross-linked polyethylene insulated overhead cable comprises an interwoven wire 1, a hollow groove is arranged in the middle of the interwoven wire 1, a steel cable 2 is arranged in the hollow groove, an inner insulating layer 3 is wrapped on the peripheral end surface of the steel cable 2, an outer insulating layer 4 is wrapped on the peripheral end surface of the interwoven wire 1, a plurality of groups of fixing components are movably sleeved on the peripheral end surface of the outer insulating layer 4, each fixing component comprises two groups of arc lantern rings 6 which are oppositely arranged, supporting plates 7 are arranged on the opposite end surfaces of the two groups of lantern rings 6, a left and right penetrating type sliding groove 8 is arranged on the upper end surface of one group of supporting plates 7, a sliding block 9 is slidably connected in the sliding groove 8, the upper end of the sliding block 9 penetrates through the sliding groove 8 to be connected with the other group of supporting plates 7, a plug pin 10 is arranged on the lower end surface of one group of the supporting plates 7, one end of the plug pin 10 penetrates through the supporting plates 7 to be movably connected in the sliding block 9, and a hoisting ring component is arranged on the end face of the outer side of the supporting plate 7.

The metal braid 5 is nested in the outer insulating layer 4, so that the strength of the outer insulating layer 4 is improved, and the tear resistance is improved.

The lower end of the bolt 10 is provided with a permanent magnet, the peripheral end face of the supporting plate 7 is wrapped with a metal layer, and the permanent magnet is connected with the metal layer in an absorbing mode, so that the bolt 10 is convenient to disassemble and assemble.

The rings subassembly includes the turn trough 11, turn trough 11 and backup pad 7 fixed connection, and the inside rotation of turn trough 11 is connected with the commentaries on classics piece 12, is provided with on the up end of commentaries on classics piece 12 to pass the connecting rod 13 that turn trough 11 extends to the turn trough 11 top, is provided with rings 14 on the up end of connecting rod 13 for rings 14 angle of adjustment, convenient to use.

The suspension ring 14 is a ring-shaped structure made of conductive metal, so that the suspension ring 14 has a conductive capability and can act as a bottom line.

A working mode; the during operation will interweave wire 1 and external equipment and link to each other, and the steel cable 2 that sets up can play the bearing effect, reduces the pulling force that interweaves wire 1 received, improves life, thereby prevents that the pulling force is too big and lead to the fracture to cause the potential safety hazard, and the fixed subassembly that sets up can conveniently be fixed with outside object, passes rings 14 with outside cable, can conveniently hoist.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A crosslinked polyethylene insulated overhead cable comprises an interwoven wire (1), and is characterized in that: the middle part of the interweaving wire (1) is provided with an empty groove, a steel cable (2) is arranged in the empty groove, the peripheral end face of the steel cable (2) is wrapped with an inner insulating layer (3), the peripheral end face of the interweaving wire (1) is wrapped with an outer insulating layer (4), a plurality of groups of fixing components are movably sleeved on the peripheral end face of the outer insulating layer (4), each fixing component comprises two groups of arc-shaped lantern rings (6) which are oppositely arranged, supporting plates (7) are arranged on the opposite end faces of the two groups of lantern rings (6), a left penetrating type sliding groove and a right penetrating type sliding groove (8) are arranged on the upper end face of one group of the supporting plates (7), a sliding block (9) is connected to the inner part of each sliding groove (8) in a sliding mode, the upper end of each sliding block (9) penetrates through each sliding groove (8) to be connected with the other group of the supporting plates (7), and a plug pin (10) is arranged on the lower end face of the group of the supporting plates (7), one end of the bolt (10) penetrates through the supporting plate (7) and is movably connected with the inside of the sliding block (9) in a pin mode, and a hanging ring assembly is arranged on the end face of the outer side of the supporting plate (7).

2. The cross-linked polyethylene insulated overhead cable of claim 1, wherein: and a metal braid layer (5) is nested inside the outer insulating layer (4).

3. The cross-linked polyethylene insulated overhead cable of claim 1, wherein: the lower end of the plug pin (10) is provided with a permanent magnet, the peripheral end face of the support plate (7) is wrapped with a metal layer, and the permanent magnet is connected with the metal layer in an attraction mode.

4. The cross-linked polyethylene insulated overhead cable of claim 1, wherein: the rings subassembly includes turn trough (11), turn trough (11) with backup pad (7) fixed connection, the inside rotation of turn trough (11) is connected with commentaries on classics piece (12), be provided with on the up end of commentaries on classics piece (12) and pass turn trough (11) extend to connecting rod (13) of turn trough (11) top, be provided with rings (14) on the up end of connecting rod (13).

5. The cross-linked polyethylene insulated overhead cable of claim 4, wherein: the hanging ring (14) is of an annular structure made of conductive metal.