CN218482003U

CN218482003U - Capacity-increasable overhead insulated cable

Info

Publication number: CN218482003U
Application number: CN202222921701.1U
Authority: CN
Inventors: 孙运东; 王秀香; 王效华
Original assignee: Junan Meida Electric Power Industry Co ltd
Current assignee: Junan Meida Electric Power Industry Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-02-14
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses an aerial insulated cable that can increase capacity, including the oversheath, the oversheath inboard is provided with the copper strips shielding layer, copper strips shielding layer inboard is provided with the insulation shielding layer, the insulation shielding layer inboard is fixed and is provided with the cross and cuts off, the cross cuts off and is provided with a plurality of conductor electricity cores between the insulation shielding layer, oversheath outer wall ring side is fixed and is provided with a plurality of increase-volume subassemblies, the increase-volume subassembly includes first semi-ring and second semi-ring, first semi-ring and oversheath fixed connection, be provided with the articulated shaft between second semi-ring and the first semi-ring, second semi-ring and first semi-ring pass through the articulated setting of articulated shaft. Through rotating the second semi-ring, and then make second semi-ring and first semi-ring carry out the ring-opening, will increase capacity the cable conductor and arrange the inner semi-ring in, carry out the closed loop to first semi-ring and second semi-ring again, when using, when the increase capacity cable conductor receives wind-blowing or vibration, cushion through compressing multiunit spring, and then improve whole durable and durability.

Description

Capacity-increasable overhead insulated cable

Technical Field

The utility model belongs to the technical field of built on stilts insulated cable, especially, relate to an aerial insulated cable of increase-volume.

Background

With the rapid development of national economy, the demand of electric power in China is in a continuous increasing trend, and particularly, the electric power load in the eastern region is continuously increased, so that the receiving end of the urban distribution network bears larger load. Because of the increasing shortage of line corridor resources and the increasing of corridor floor pressure, it is more and more difficult to newly build a power transmission line in a city, and the load channel often has a 'neck clamping' phenomenon under the influence of the limiting factors of the power transmission line corridor and the like, so that the load can not be effectively sent to a receiving end. In order to solve the contradiction between the increasing electric load and the difficulty in cable line construction, the research direction can only be shifted from the expansion of the power grid to the potential excavation of the existing network and the improvement of the transmission capacity of the existing power transmission network.

The existing capacity-increasing overhead insulated cable lacks a good outer protection structure, and is easy to be blown by wind and drenched by rain due to being arranged at high altitude, so that the whole cable is durable and poor in durability.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides an aerial insulated cable of volume-increasing.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a but aerial insulated cable of increase-volume, includes the oversheath, the oversheath inboard is provided with the copper strips shielding layer, copper strips shielding layer inboard is provided with the insulation shielding layer, the inboard fixed cross that is provided with of insulation shielding layer cuts off, be provided with a plurality of conductor electricity cores between cross cut off and the insulation shielding layer, oversheath outer wall ring side is fixed and is provided with a plurality of increase-volume subassemblies, increase-volume subassembly includes first semi-ring and second semi-ring, first semi-ring and oversheath fixed connection, be provided with the articulated shaft between second semi-ring and the first semi-ring, the second semi-ring sets up through articulated axle with first semi-ring.

Preferably, one side of the second half ring, which is far away from the hinge shaft, of the first half ring is fixedly connected with a second fixing plate and a first fixing plate respectively, the second fixing plate and the first fixing plate are provided with a same bolt in a penetrating manner, and the bolt is provided with a nut in a threaded manner.

Preferably, the inner side wall of the first half ring is fixedly connected with a plurality of groups of uniformly distributed springs, and one end of each group of springs, which is far away from the first half ring, is fixedly connected with the same inner half ring.

Preferably, the cross partition is made of an insulating rubber material, and four independent spaces separated by the cross partition in the insulating shielding layer are filled with insulating filling layers.

Preferably, the outer side wall of the conductor cell is fixedly sleeved with a first conductor shielding layer.

Preferably, a plurality of clamping blocks which are uniformly distributed are fixedly arranged on the inner side wall of the second semi-ring, and the plurality of clamping blocks are in flat-head conical structures.

Preferably, a second conductor shielding layer is fixedly arranged on the inner side wall of the inner half ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the copper strip shielding layer and the insulation shielding layer are used for shielding and protecting a plurality of conductor cells externally, and the cross partition is used for enabling the conductor cells in the overhead insulated cable to have good blocking partition, so that the conductor cells are not easily interfered with each other when in work;

2. through rotating the second semi-ring, and then make second semi-ring and first semi-ring carry out the ring-opening, arrange the increase-volume cable conductor in on the inner semi-ring, carry out the closed loop to first semi-ring and second semi-ring again, when using, when the increase-volume cable conductor receives wind-blowing or vibration, cushion through compressing multiunit spring, and then improve whole durable and durability.

Drawings

Fig. 1 is a schematic structural diagram of an entire volume-increasing overhead insulated cable according to the present invention;

fig. 2 is a schematic structural view of an inner side of an overhead insulated cable outer sheath capable of increasing capacity according to the present invention;

fig. 3 is a schematic structural diagram of an overhead insulated cable capacity increasing assembly according to the present invention;

fig. 4 is a schematic structural diagram of an inner half ring of an overhead insulated cable capable of increasing capacity according to the present invention.

In the figure: 1. an outer sheath; 2. a copper strip shielding layer; 3. an insulating shield layer; 4. a cross partition; 5. a conductor cell; 6. a first half ring; 7. a second half ring; 8. hinging shafts; 9. a second fixing plate; 10. a first fixing plate; 11. a bolt; 12. a nut; 13. a spring; 14. an inner half ring; 15. an insulating filling layer; 16. a first conductive shield layer; 17. a clamping block; 18. a second conductive shield layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 and 2, an overhead insulated cable capable of increasing capacity comprises an outer sheath 1, a copper strip shielding layer 2 is arranged on the inner side of the outer sheath 1, an insulating shielding layer 3 is arranged on the inner side of the copper strip shielding layer 2, a cross partition 4 is fixedly arranged on the inner side of the insulating shielding layer 3, a plurality of conductor electric cores 5 are arranged between the cross partition 4 and the insulating shielding layer 3, the plurality of conductor electric cores 5 are shielded and protected outside through the copper strip shielding layer 2 and the insulating shielding layer 3, the cross partition 4 enables good blocking and blocking of the conductor electric cores 5 in the overhead insulated cable, and the conductor electric cores 5 are not prone to mutual interference in working. The outer side wall of the conductor cell 5 is fixedly sleeved with a first conductor shielding layer 16, and the conductor cell 5 is shielded and protected from the inside through the first conductor shielding layer 16. The cross partition 4 is made of insulating rubber, four independent spaces separated by the cross partition 4 in the insulating shielding layer 3 are filled with insulating filling layers 15, and the insulating filling layers 15 are used for insulating the internal conductor cell 5.

Referring to fig. 1, 3 and 4, a plurality of capacity increasing components are fixedly arranged on the outer wall ring side of the outer sheath 1, each capacity increasing component comprises a first half ring 6 and a second half ring 7, the first half ring 6 is fixedly connected with the outer sheath 1, an articulated shaft 8 is arranged between the second half ring 7 and the first half ring 6, the second half ring 7 and the first half ring 6 are arranged in an articulated manner through the articulated shaft 8, and the second half ring 7 and the first half ring 6 are conveniently opened by rotating the second half ring 7 through the articulated arrangement. One side of keeping away from articulated shaft 8 on second semi-ring 7 and the first semi-ring 6 is fixedly connected with second fixed plate 9 and first fixed plate 10 respectively, runs through on second fixed plate 9 and the first fixed plate 10 and is provided with same bolt 11, and threaded mounting has nut 12 on the bolt 11, fixes second fixed plate 9 and first fixed plate 10 through bolt 11 and nut 12, and then carries out the closed loop to first semi-ring 6 and second semi-ring 7.

Referring to fig. 3 and 4, a plurality of groups of uniformly distributed springs 13 are fixedly connected to the inner side wall of the first half ring 6, one end of each group of springs 13, which is far away from the first half ring 6, is fixedly connected with the same inner half ring 14, and the capacity-increased cable is placed on the inner half ring 14, so that when the cable is blown by wind or vibrated, the buffering is performed by compressing the plurality of groups of springs 13. A plurality of clamping blocks 17 which are uniformly distributed are fixedly arranged on the inner side wall of the second half ring 7, the plurality of clamping blocks 17 are in flat-head conical structures, and the cable is tightly abutted to the inner half ring 14 through the extrusion effect of the plurality of clamping blocks 17. And a second conductor shielding layer 18 is fixedly arranged on the inner side wall of the inner half ring 14, and the capacity-increasing cable is shielded and protected by the second conductor shielding layer 18.

Now, the operation principle of the present invention is described as follows: shielding protection is carried out on a plurality of conductor electric cores 5 externally through a copper strip shielding layer 2 and an insulating shielding layer 3, a cross partition 4 is adopted to enable good blocking partition to be provided between the conductor electric cores 5 in the overhead insulated cable, the conductor electric cores 5 are not prone to mutual interference in working, and the insulating filling 15 plays an insulating role in the conductor electric cores 5 inside. When the capacity increasing cable needs to be increased, the second half ring 7 is rotated to further open the second half ring 7 and the first half ring 6, the capacity increasing cable is arranged on the inner half ring 14, the second fixing plate 9 and the first fixing plate 10 are fixed through the bolt 11 and the nut 12, further the first half ring 6 and the second half ring 7 are closed, the cable is tightly abutted against the inner half ring 14 through the extrusion effect of the plurality of clamping blocks 17, and when the capacity increasing cable is blown by wind or vibrated in use, the capacity increasing cable is buffered by compressing the plurality of groups of springs 13, so that the overall durability and durability are improved.

The above, only be the embodiment of the preferred 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, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a but aerial insulated cable of increase-volume, includes oversheath (1), its characterized in that, oversheath (1) inboard is provided with copper strips shielding layer (2), copper strips shielding layer (2) inboard is provided with insulation shielding layer (3), insulation shielding layer (3) inboard is fixed and is provided with cross wall (4), be provided with a plurality of conductor electricity cores (5) between cross wall (4) and insulation shielding layer (3), oversheath (1) outer wall ring side is fixed and is provided with a plurality of increase-volume subassemblies, increase-volume subassembly includes first semi-ring (6) and second semi-ring (7), first semi-ring (6) and oversheath (1) fixed connection, be provided with articulated shaft (8) between second semi-ring (7) and first semi-ring (6), second semi-ring (7) and first semi-ring (6) pass through articulated shaft (8) articulated setting.

2. The overhead insulated cable with the capacity increased according to claim 1, wherein a second fixing plate (9) and a first fixing plate (10) are respectively fixedly connected to the second half ring (7) and the first half ring (6) at a side away from the hinge shaft (8), the same bolt (11) penetrates through the second fixing plate (9) and the first fixing plate (10), and a nut (12) is threadedly mounted on the bolt (11).

3. A capacity-extended overhead insulated cable according to claim 1, wherein a plurality of uniformly distributed springs (13) are fixedly connected to the inner side wall of the first half ring (6), and one end of the plurality of uniformly distributed springs (13) far away from the first half ring (6) is fixedly connected to the same inner half ring (14).

4. A compatibilized overhead insulated cable according to claim 1, wherein the cross partition (4) is made of an insulating rubber material, and four independent spaces in the insulating shielding layer (3) separated by the cross partition (4) are filled with insulating filling layers (15).

5. A compatibilized overhead insulated cable according to claim 1, wherein a first conductor shield (16) is fixedly attached to the outer side wall of said conductor core (5).

6. The compatibilized overhead insulated cable according to claim 1, wherein a plurality of uniformly distributed clamping blocks (17) are fixedly arranged on the inner side wall of the second half ring (7), and the plurality of clamping blocks (17) are in a truncated cone structure.

7. A compatibilisable overhead insulated cable according to claim 3, characterized in that the inner half-rings (14) are fixedly provided with a second conductor shield (18) on the inner side wall.