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Electric power overhauling ladder

A technology for electrical maintenance and cables, applied in ladders, coatings, buildings, etc., can solve problems such as inconvenience in use, and achieve the effects of increasing service life, increasing adsorption force, and avoiding sliding.

Active Publication Date: 2018-04-13
国网河南省电力公司超高压公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this device can only perform braking operation after maintenance personnel need to board the ladder, which is inconvenient to use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1-3 Shown, which in order to figure 1 Corresponding, Figure 2-3 The left side of the middle is defined as the front end, and the right side is defined as the rear end. An electric maintenance ladder includes two cables 1 and a plurality of pedals 2 fixed between the cables 1. The top ends of the two cables 1 are respectively fixed with two hanging heads 3. The hanging head 3 includes an inverted U-shaped hook 21 and a pulley 4 fixed in the inverted U-shaped hook 21. The brake device 5 is fixed on the side of the hanging head 3, wherein Both the hanging head 3 and the brake device 5 are provided with threaded holes in the lower part. A fixing plate with bolts fixes the hanging head 3 and the brake device 5 together, and the pulley 4 can slide on the cable 23.

[0034] The brake device 5 includes a second inverted U-shaped hook 6 and a fixing block 7 fixed at the rear end of the second inverted U-shaped hook 6, wherein the second U-shaped hook 6 and the fixe...

Embodiment 2

[0045] The structure of Example 2 is the same as that of Example 1, except that:

[0046] In the present invention, the surfaces of the hanging head 3 and the brake device 5 are sprayed with insulating and wear-resistant paint, and the surfaces of the hanging head 3 and the brake device 5 are both sprayed with insulating and wear-resistant paint. The insulating and wear-resistant coating is made of the following parts by weight: 35 parts of acrylic emulsion, 32 parts of epoxy resin, 9 parts of silica sol, 11 parts of oxalic acid polyester, 6 parts of silicon nitride, 5 parts of nano-silica , 13 parts of nitrile rubber powder, 4 parts of polyethylene glycol octylphenyl ether, 4 parts of sodium lignosulfonate, 18 parts of solvent and 8 parts of water.

[0047] The solvent is a mixture of ethanol and toluene in a volume ratio of 1:1.5.

[0048] The insulating and wear-resistant coating is prepared by the following steps:

[0049] (1) Mix and disperse oxalic acid polyester, silicon nitri...

Embodiment 3

[0053] The structure of Example 3 is the same as that of Example 1, except that:

[0054] In the present invention, the surfaces of the hanging head 3 and the brake device 5 are sprayed with insulating and wear-resistant paint, and the surfaces of the hanging head 3 and the brake device 5 are both sprayed with insulating and wear-resistant paint. The insulating and wear-resistant coating is made of the following parts by weight: 36 parts of acrylic emulsion, 30 parts of epoxy resin, 10 parts of silica sol, 10 parts of oxalic acid polyester, 7 parts of silicon nitride, 4 parts of nano-silica , 14 parts of nitrile rubber powder, 3 parts of polyethylene glycol octyl phenyl ether, 5 parts of sodium lignosulfonate, 16 parts of solvent and 9 parts of water.

[0055] The solvent is a mixture of ethanol and toluene in a volume ratio of 1:2.

[0056] The insulating and wear-resistant coating is prepared by the following steps:

[0057] (1) Mix and disperse oxalic acid polyester, silicon nitri...

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Abstract

The invention discloses an electric power overhauling ladder, and belongs to the technical field of electric power cable overhauling. The electric power overhauling ladder comprises two cables and a plurality of pedals fixed between the cables, and two hanging heads are fixed to the top end of each cable; each hanging head comprises a first inverted-U-shaped hook and a pulley arranged in the firstinverted-U-shaped hook, and a braking device is arranged on the side edge of each hanging head; a first pulling rope and a second pulling rope are adopted to start the braking devices before an overhauling worker does not climb the rope ladder; and the electric power overhauling ladder is fixed to a cable to avoid sliding, so that overhauling operation is more safe, and the surfaces of the hanging heads and the braking devices are sprayed with insulation wear-resistant coating, so that the service life is greatly prolonged.

Description

Technical field [0001] The invention relates to the technical field of power cable maintenance, in particular to a power maintenance ladder. Background technique [0002] In the maintenance of power cables, insulated ladders are often used. The ladder heads of such insulated ladders are usually U-shaped hooks. There are pulleys in the U-shaped hooks, which can be hung on the line or slide along the line. It is more convenient to use, but if the maintenance personnel need to stop on a certain line for operation, the soft ladder head is also easy to slide along the line by itself, which brings inconvenience to the normal operation of the operator. The prior art improves the structure of the insulated ladder. [0003] Chinese Patent Announcement No. CN201378704Y discloses a special hanging ladder for electric power maintenance, which is composed of a soft ladder and a hanging head. The hanging head is an insulated single-wheel block consisting of an inverted "U"-shaped hook, a pulley...

Claims

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Application Information

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IPC IPC(8): E06C1/36E06C1/56E06C7/50C09D163/00C09D133/00C09D167/00C09D109/02C09D171/02C09D197/00C09D5/25C09D7/61C09D7/20
CPCC08K2201/011C08K2201/014C08L2205/035C09D133/00C09D163/00E06C1/36E06C1/56E06C7/505C08L33/00C08L67/00C08L9/02C08L71/02C08L97/00C08K3/36C08K3/34C08L63/00
Inventor 张利王来军张华申晓春
Owner 国网河南省电力公司超高压公司
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