CN212908862U

CN212908862U - 220KV polyethylene grounding power cable with suspension supporting structure

Info

Publication number: CN212908862U
Application number: CN202022064378.1U
Authority: CN
Inventors: 杨春贵; 刘凤梅; 赵明祥; 杨俊驿
Original assignee: Kunming Kunbao Wire & Cable Manufacturing Co ltd
Current assignee: Kunming Kunbao Wire & Cable Manufacturing Co ltd
Priority date: 2020-09-19
Filing date: 2020-09-19
Publication date: 2021-04-06
Anticipated expiration: 2030-09-19

Abstract

The utility model discloses a 220KV polyethylene ground connection power cable with hang bearing structure, including bottom plate, apron and oversheath, the top fixed mounting of bottom plate has supporting spring, and supporting spring's top fixedly connected with rubber support plate, the avris fixedly connected with fixed block of bottom plate, and the inside set screw hole of fixed block to the inner wall movable mounting of screw hole has fastening bolt. This 220KV polyethylene ground connection power cable with hang bearing structure places the oversheath on rubber support plate, grasp the handle and mention the apron, cover the apron at the oversheath top, aim at two fixed blocks from top to bottom and rotate fastening bolt, make apron and bottom plate closed, supporting spring through the symmetry setting, make rubber support plate can install fixedly to not unidimensional power cable, through setting up the rubber support plate of laminating mutually with the oversheath, make this hang bearing structure device can play a fine guard action to power cable.

Description

220KV polyethylene grounding power cable with suspension supporting structure

Technical Field

The utility model relates to a hang bearing structure technical field, specifically be a 220KV polyethylene ground connection power cable with hang bearing structure.

Background

The power cable is used for transmitting and distributing electric energy, the power cable is often used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater, in the power line, the proportion of the cable is gradually increased, the power cable is a cable product used for transmitting and distributing high-power electric energy in a main line of a power system, the power cable comprises 1-500KV and various voltage grades, and various insulated power cables, most of the 220KV polyethylene grounding power cables used in large cities at present adopt a laying mode of suspension support, so that the increasingly large power consumption requirements of the cities are met, but the existing 220KV polyethylene grounding power cable with a suspension support structure also has certain defects, such as:

1. the existing 220KV polyethylene grounding power cable with a suspension support structure can only be used for mounting and suspending power cables with fixed sizes, the mounting and suspending of the power cables with different sizes can be clamped or the power cables are easy to shake, the power cables are easy to fall off, and therefore a power cable protective layer is damaged, electric leakage is caused, and certain use defects exist;

2. when the existing 220KV polyethylene grounding power cable with the suspension support structure is generally fixed on a telegraph pole, the fixing effect is not particularly ideal, and in severe weather such as strong wind, thunderstorm and the like, the buckle is easy to fall off, so that the power cable is very dangerous to fall off, and further the operation of a user is inconvenient.

In order to solve the problems, innovative design is urgently needed on the basis of the original 220KV polyethylene grounding power cable structure with the suspension support structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 220KV polyethylene ground connection power cable with hang bearing structure, generally can only install fixed dimension's power cable and hang in solving above-mentioned background art, hang the power cable installation of not unidimensional and probably have the block not go up or power cable rocks easily, thereby it leads to damaging the power cable protective layer and leads to the electric leakage to take place to make power cable drop easily, generally when fixing on the wire pole, fixed effect is not particularly ideal, in strong wind, in bad weather such as thunderstorm, lead to the buckle to drop easily, and then make power cable drop the dangerous problem very.

In order to achieve the above object, the utility model provides a following technical scheme: a KV polyethylene grounding power cable with a suspension support structure comprises a bottom plate, a cover plate and an outer sheath, wherein a support spring is fixedly installed at the top of the bottom plate, the top of the supporting spring is fixedly connected with a rubber supporting plate, the side of the bottom plate is fixedly connected with a fixed block, the inside of the fixed block is provided with a threaded hole, and the inner wall of the threaded hole is movably provided with a fastening bolt, the top of the cover plate is welded with a handle, a clamping bolt is fixed on the left side of the cover plate, an aluminum sheath is fixedly connected on the inner wall of the outer sheath, an inner sheath is fixedly arranged on the inner wall of the aluminum sheath, a water-resistant layer is fixed on the inner wall of the inner sheath, an XLPE insulating layer is fixedly connected on the inner wall of the water-resistant layer, a fire-resistant layer is fixed inside the XLPE insulating layer, and the inner wall of the fire-resistant layer is fixedly provided with a main core wire, and the inner wall of the fire-resistant layer is fixedly connected with a zero line.

Preferably, the number of the supporting springs is 12, and each 6 of the 12 supporting springs is 1 group, and 2 groups of the supporting springs are symmetrically arranged with a perpendicular bisector of the base plate as a symmetry axis.

Preferably, the inner wall of the rubber support plate is movably connected with the outer wall of the outer sheath, and the rubber support plate and the bottom plate form an elastic structure through a support spring.

Preferably, the fastening bolt and the fixed block form a rotating structure through a threaded hole, and the outer size of the fastening bolt is completely matched with the inner wall size of the threaded hole.

Preferably, the number of the clamping bolts is 5, and the 5 clamping bolts are equidistantly fixed on the left side of the cover plate.

Preferably, the inner wall of the fire-resistant layer is fixedly connected with the outer wall of the main core wire, and the fire-resistant layer and the zero line are of an integrated structure.

Compared with the prior art, the beneficial effects of the utility model are that: the 220KV polyethylene grounding power cable with the suspension support structure;

1. the suspension support structure device is provided with bilaterally symmetrical support springs, the outer sheath is placed on the rubber support plate, the handle is grasped to lift the cover plate, the cover plate is covered on the top of the outer sheath, the upper fixing block and the lower fixing block are aligned to the rotary fastening bolt, so that the cover plate and the bottom plate are closed, the rubber support plate can be used for installing and fixing power cables with different sizes through the symmetrically arranged support springs, and the rubber support plate which is attached to the outer sheath is arranged, so that the suspension support structure device can play a good protection role on the power cables;

2. be provided with equidistant gim peg, grasp the handle after this hang bearing structure device and finish power cable is fixed, mention the device and climb to the wire pole top through the ladder and fix the gim peg at the wire pole top, through the 5 equidistant gim pegs that set up for the device monolithic stationary effect is better, also can not damage easily in bad weather and drop, has improved the device's practicality.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 4 is a schematic side sectional view of the bottom plate of the present invention.

In the figure: 1. a base plate; 2. a support spring; 3. a rubber support plate; 4. a threaded hole; 5. a fixed block; 6. fastening a bolt; 7. a cover plate; 8. a handle; 9. fastening a bolt; 10. an outer sheath; 11. an aluminum sheath; 12. an inner sheath; 13. a water resistant layer; 14. an XLPE insulating layer; 15. a refractory layer; 16. a main core wire; 17. a zero line.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a220 KV polyethylene grounding power cable with a suspension support structure comprises a bottom plate 1, a support spring 2, a rubber support plate 3, a threaded hole 4, a fixing block 5, a fastening bolt 6, a cover plate 7, a handle 8, a clamping bolt 9, an outer sheath 10, an aluminum sheath 11, an inner sheath 12, a water-blocking layer 13, an XLPE insulating layer 14, a fire-resistant layer 15, a main core wire 16 and a zero line 17, wherein the support spring 2 is fixedly installed at the top of the bottom plate 1, the rubber support plate 3 is fixedly connected to the top of the support spring 2, the fixing block 5 is fixedly connected to the side of the bottom plate 1, the threaded hole 4 is formed in the fixing block 5, the fastening bolt 6 is movably installed on the inner wall of the threaded hole 4, the handle 8 is welded to the top of the cover plate 7, the clamping bolt 9 is fixed to the left side of the cover plate 7, the aluminum sheath 11 is fixedly connected, and the inner wall of inner sheath 12 is fixed with water-blocking layer 13, and the inner wall fixedly connected with XLPE insulating layer 14 of water-blocking layer 13, and the inside of XLPE insulating layer 14 is fixed with flame retardant coating 15, and the inner wall fixed mounting of flame retardant coating 15 has main heart yearn 16, and the inner wall fixedly connected with zero line 17 of flame retardant coating 15.

The number of the supporting springs 2 is 12, 6 of the 12 supporting springs 2 are 1 group, the 2 groups of supporting springs 2 are symmetrically arranged by taking the perpendicular bisector of the bottom plate 1 as a symmetry axis, and the supporting effect of the rubber supporting plate 3 on the outer sheath 10 is better by arranging the 2 groups of supporting springs 2 which are bilaterally symmetrical;

the inner wall of the rubber support plate 3 is movably connected with the outer wall of the outer sheath 10, the rubber support plate 3 and the bottom plate 1 form an elastic structure through the support spring 2, and the device can install and fix power cables with different sizes through the rubber support plate 3 and the bottom plate 1 which are arranged into the elastic structure;

the fastening bolt 6 and the fixing block 5 form a rotating structure through the threaded hole 4, the outer size of the fastening bolt 6 is completely matched with the inner wall size of the threaded hole 4, and workers can install the power cable more conveniently and quickly through the fastening bolt 6 and the fixing block 5 which are arranged into the rotating structure;

the number of the clamping bolts 9 is 5, the 5 clamping bolts 9 are fixed on the left side of the cover plate 7 at equal intervals, and the overall fixing effect of the device is better through the 5 clamping bolts 9 at equal intervals;

the inner wall of flame retardant coating 15 and the outer wall fixed connection of main core line 16, and flame retardant coating 15 and zero line 17 be the integral structure, through setting up flame retardant coating 15 and zero line 17 to the integral structure for it is more convenient when retrieving power cable that people are.

The working principle is as follows: when the 220KV polyethylene grounding power cable with the suspension support structure is used, according to the figures 1, 2 and 4, the outer sheath 10 is placed on the inner wall of the rubber support plate 3, the handle 8 is grabbed to lift the cover plate 7, the cover plate 7 is placed on the top of the outer sheath 10, the fixing block 5 fixed on the side of the cover plate 7 and the bottom plate 1 is aligned, the fastening bolt 6 is placed in the threaded hole 4 in the fixing block 5, the support spring 2 is squeezed through the outer sheath 10 to install power cables with different sizes, the handle 8 is grabbed to lift the suspension support structure device integrally, and finally the suspension support structure device is fixed on the top of a telegraph pole through the clamping bolt 9;

according to fig. 1 and 3 when retrieving this power cable, at first cut open outer sheath 10 with the cutting knife, peel off aluminium sheath 11 out, take out the inside inner sheath 12 of aluminium sheath 11 whole again, carry out preliminary recovery processing to aluminium sheath 11, cut inner sheath 12 after that, peel off water-blocking layer 13 whole, take off the inside flame retardant coating 15 of XLPE insulating layer 14 whole at last, separate flame retardant coating 15 with the cutting knife again, carry out recovery processing with inside main core line 16 and zero line 17.

Those not described in detail in this specification are within the skill of the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A220 KV polyethylene grounding power cable with a suspension support structure comprises a bottom plate (1), a cover plate (7) and an outer sheath (10), and is characterized in that: the top of the base plate (1) is fixedly provided with a supporting spring (2), the top of the supporting spring (2) is fixedly connected with a rubber supporting plate (3), the lateral side of the base plate (1) is fixedly connected with a fixed block (5), a threaded hole (4) is formed in the fixed block (5), a fastening bolt (6) is movably mounted on the inner wall of the threaded hole (4), the top of the cover plate (7) is welded with a handle (8), the left side of the cover plate (7) is fixed with a clamping bolt (9), the inner wall of the outer sheath (10) is fixedly connected with an aluminum sheath (11), the inner wall of the aluminum sheath (11) is fixedly provided with an inner sheath (12), the inner wall of the inner sheath (12) is fixed with a water-blocking layer (13), the inner wall of the water-blocking layer (13) is fixedly connected with an XLPE insulating layer (14), the inner part of the X, and the inner wall of the flame retardant coating (15) is fixedly provided with a main core wire (16), and the inner wall of the flame retardant coating (15) is fixedly connected with a zero line (17).

2. A 220KV polyethylene grounding power cable with suspended support structure according to claim 1, wherein: the quantity of supporting spring (2) is 12, and every 6 of 12 supporting spring (2) are 1 group to 2 supporting spring (2) use the perpendicular bisector of bottom plate (1) as symmetry axis symmetry setting.

3. A 220KV polyethylene grounding power cable with suspended support structure according to claim 1, wherein: the inner wall of the rubber support plate (3) is movably connected with the outer wall of the outer sheath (10), and the rubber support plate (3) and the bottom plate (1) form an elastic structure through the support spring (2).

4. A 220KV polyethylene grounding power cable with suspended support structure according to claim 1, wherein: the fastening bolt (6) and the fixing block (5) form a rotating structure through the threaded hole (4), and the external size of the fastening bolt (6) is completely matched with the size of the inner wall of the threaded hole (4).

5. A 220KV polyethylene grounding power cable with suspended support structure according to claim 1, wherein: the number of the clamping bolts (9) is 5, and the 5 clamping bolts (9) are equidistantly fixed on the left side of the cover plate (7).

6. A 220KV polyethylene grounding power cable with suspended support structure according to claim 1, wherein: the inner wall of the fire-resistant layer (15) is fixedly connected with the outer wall of the main core wire (16), and the fire-resistant layer (15) and the zero line (17) are of an integrated structure.