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Overhead conductor insulation shielding device for hot-line work

A technology for overhead wires and live work, applied in the direction of overhead lines/cable equipment, etc., can solve the problems of increasing working steps, sliding of shielding blankets, falling off and sliding of insulating clips, etc., to reduce workload, expand applicable scenarios, and improve stability Effect

Pending Publication Date: 2022-04-15
ZHEJIANG DAYOU IND CO LTD HANGZHOU SCI TECH DEV BRANCH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are some disadvantages in the existing operation method of using a shielding blanket to cover the overhead wires, such as: 1. Using insulating clips to fix the shielding blanket will increase the work steps, and the insulating clips may also fall off and slide, which is not conducive to ensuring the stability of the shielding blanket ; 2. The length of each masking blanket is fixed. When a long overhead wire needs to be shielded, it is necessary to use multiple masking blankets to overlap and cooperate. The preparation work of the staff is relatively large, and the labor intensity is high. Work efficiency; 3. When shielding overhead wires with ups and downs and slopes, it is necessary to use multiple shielding blankets to combine and use multiple insulating clips to fix the shielding blanket. There is a risk that the shielding blanket will slide and cause the fixation to fail

Method used

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  • Overhead conductor insulation shielding device for hot-line work
  • Overhead conductor insulation shielding device for hot-line work
  • Overhead conductor insulation shielding device for hot-line work

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 1 to Figure 5 As shown, an overhead wire insulation and shielding device for live work provided by Embodiment 1 of the present invention includes flexible insulation and double-folded shielding blankets 100. Expanded or folded, a retractable guide structure 200 is provided between adjacent two layers of shelter blankets 100, and the guide structure 200 includes a guide sleeve arranged on one of the outer surface of the inner blanket and the inner surface of the outer blanket 220 and a guide shaft 210 located on the other, the guide shaft 210 is inserted in the guide sleeve 220 and can move back and forth relative to the guide sleeve 220, the ends of the innermost layer of shielding blanket 100 and the outermost layer of shielding blanket 100 are set There are expandable positioning parts.

[0037]In this embodiment, two shielding blankets 100 are used as an example for illustration. The shielding blanket 100 includes a first shielding blanket 110 on the...

Embodiment 2

[0049] combine Image 6 , Figure 7 In order to enable the shielding device to insulate and shield the curved overhead wire 500, the guide shaft 210 and the guide sleeve 220 are both flexible, and the shaft body 211 is hollow and is provided with a flexible shaft core 214. The flexible shaft core 214 includes a plurality of The shaft segments 215 connected in series make the guide shaft 210 bendable and deformable. In this embodiment, one end of the shaft section 215 is provided with a spherical joint 216, and the other end is provided with a spherical concave hole 217 matched with the spherical joint 216, and the connection between the spherical joint 216 and the spherical concave hole 217 is passed between two adjacent shaft sections 215. Match together in series. In order to improve the stability of the flexible shaft core 214 , an elastic sleeve 218 with a small thickness is sheathed on the outside of the flexible shaft core 214 .

[0050] Since the flexible shaft core ...

Embodiment 3

[0056] Such as Figure 8 As shown, in this embodiment, the guide shaft 210 directly adopts a segmented structure, and the guide shaft 210 is composed of a plurality of shaft segments 215 connected in series through the cooperation of the spherical joint 216 and the spherical concave hole 217, and each shaft segment 215 is provided with There is a shaft part 211 and a fixing part 213 connected by a connecting part 212 . Specifically, each shaft segment 215 includes a cylindrical shaft body portion 211 and a ball joint 216 , and each shaft segment 215 is directly fixed to the corresponding shielding blanket 100 through its own fixing portion 213 . The guide shaft 210 with such a structure can further increase the degree of bending deformation, so that the shielding device can better meet the insulation and shielding requirements for curved overhead wires.

[0057] The other structures of the third embodiment are the same as those of the second embodiment, and will not be repeat...

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PUM

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Abstract

The invention discloses an overhead conductor insulation shielding device for hot-line work, and belongs to the technical field of electric power safety appliances, the overhead conductor insulation shielding device comprises at least two shielding blankets which are flexible, insulated and folded, the shielding blankets are sequentially stacked from inside to outside and can be unfolded or folded, and a telescopic guide structure is arranged between every two adjacent shielding blankets. The guide sleeve is arranged on one of the outer surface of the inner-layer shielding blanket and the inner surface of the outer-layer shielding blanket, the guide shaft is arranged on the other one of the outer surface of the inner-layer shielding blanket and the inner surface of the outer-layer shielding blanket, the guide shaft is inserted into the guide sleeve and can move back and forth relative to the guide sleeve, and positioning pieces capable of being opened and closed are arranged at the ends of the innermost-layer shielding blanket and the outermost-layer shielding blanket. The two adjacent shielding blankets can be connected together in an unfolding or folding manner through the guide structures, so that the stability of the shielding blankets in shielding the overhead conductor is improved. The length of the shielding device can be conveniently adjusted according to the actual length of the overhead conductor so that the shielding device can be matched with the length of the overhead conductor, and the application scene of the insulation device can be expanded.

Description

technical field [0001] The invention relates to the technical field of electric safety appliances, in particular to an overhead wire insulation and shielding device for live work. Background technique [0002] The power safety work regulations stipulate that "power failure or insulation shielding measures should be taken for adjacent live lines and equipment that may be touched during work." body, to prevent workers from accidentally touching objects with different potentials during the operation and being injured by electric shock. [0003] The shielding blankets used in the existing live working process are generally smooth or with adsorption plates. After shielding the overhead wires in the working environment, it is necessary to use insulating clips or insulating ropes to fix the shielding blankets. On the shielded overhead wires, prevent the safety hazard caused by the sliding or falling of the shielding blanket and the exposure of the overhead wires. [0004] However...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 焦建立刘欣宇石霄峰申威陈胜科谭程凯张瑞王炜
Owner ZHEJIANG DAYOU IND CO LTD HANGZHOU SCI TECH DEV BRANCH CO