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Electric inspection and maintenance ladder

A technology for repairing elevators and electricity inspection, which is applied in the directions of indicating the existence of current/voltage, safety devices of lifting equipment, lifting devices, etc. Stable, safe and reliable use, the effect of reducing workload

Active Publication Date: 2018-11-09
STATE GRID SHANDONG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the maintenance of electric power, it is often necessary to overhaul the overhead cables located at a higher position. The maintenance ladder is a commonly used tool for climbing up. However, most of the maintenance ladders currently used are made of aluminum alloy, which has good electrical conductivity. When it is necessary to erect When the leaning of the maintenance ladder is charged due to leakage of electrical equipment, or when the maintenance ladder touches the live equipment by mistake, it is very easy to cause electric injury to the operator or cause a short circuit of the electrical equipment due to the conduction of the maintenance ladder, resulting in a safety accident
In addition, the maintenance ladder currently used does not have the function of detecting whether the working environment is live, so construction workers are prone to electric shock accidents during construction
Moreover, the current inspection ladder is an ordinary ladder, and the operator is prone to fatigue when repairing the circuit for a long time, and there is a danger of falling from the ladder if he is not careful, and some unsafe factors are likely to occur
Moreover, ordinary ladders have limited activity space, so it is necessary to constantly change the position of the ladder to adjust the maintenance position, and the staff need to carry tools to go down and up the ladder continuously, which increases a lot of workload

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 , figure 2 As shown, a kind of electric inspection and maintenance ladder comprises a first lifting frame 1 and a second lifting frame 8, the first lifting frame 1 and the second lifting frame 8 are respectively provided with a lifting transmission mechanism, the first lifting frame 1 and the second lifting frame The lifting transmission mechanisms of the two lifting frames 8 are respectively connected with the first lifting platform 4 and the second lifting platform 9, and the first lifting platform 4 and the second lifting platform 9 are detachably connected. The first lifting frame 1 and the second lifting frame 8 can be used alone or in combination. It is flexible and convenient to use alone, and is suitable for single-person work. The combined use has a wide range of work, is safer and more reliable, and is suitable for multi-person work. The first lifting The tops of the frame 1 and the second elevating frame 8 are provided with a non-contact el...

Embodiment 2

[0030] Such as Figure 5 As shown, the non-contact electrometric device includes a power supply, a single-chip microcomputer, a sensor, a signal processing module, a voice module, and an indicating module. The sensor is used to read the electric field signal and transmit the signal to the signal processing module. The signal processing module includes a parallel Two identical signal processing circuits, the single-chip microcomputer is used to receive the signal from the signal processing module, and the single-chip microcomputer will make a corresponding judgment, and send the processing result to the subsequent circuit, and the voice module and the indication module are connected with the single-chip microcomputer. The signal processing module is a two-way crossover operation circuit, the two signal processing circuits are completely consistent, and the cross-check is performed before sending the signal to the indicator light and the computer at the end, that is, only when th...

Embodiment 3

[0034] The lifting transmission mechanism includes a motor 10, a transmission shaft 3 and a driven shaft 2, and the transmission shaft 3 and the driven shaft 2 are respectively fixed with at least one group of sprockets 5, and the chain wheels 5 of the transmission shaft 3 and the driven shaft 2 The sprocket 5 is arranged vertically correspondingly and is connected by a chain 7 , and one end of the transmission rotating shaft 3 is also connected with the motor 10 by the sprocket 5 and the chain 7 . The structure of the lifting transmission mechanism is not limited to the above-mentioned structure, and other structures similar to the present application can also be used, such as gear transmission, hydraulic lifting and other structures.

[0035] Other structures of this embodiment are the same as Embodiment 1 or 2.

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Abstract

The invention discloses an electric power maintenance ladder capable of verifying live parts and belongs to the field of electric power maintenance tools. The electric power maintenance ladder comprises a first lifting rack and a second lifting rack, wherein each of the first lifting rack and the second lifting rack is provided with a lifting transmission mechanism, the lifting transmission mechanism of the first lifting rack is connected with a first lifting platform, the lifting transmission mechanism of the second lifting rack is connected with a second lifting platform, the first lifting platform and the second lifting platform are detachably connected, and a non-contact live part verifying device is arranged at the top of each of the first lifting rack and the second lifting rack. The electric power maintenance ladder has the advantages that the ladder is mainly used for cable maintenance, whether a circuit is live or not can be prompted automatically, safety performance is enhanced greatly, labor intensity of workers is lowered, and work efficiency is increased.

Description

technical field [0001] The invention belongs to an electric power maintenance tool, and in particular relates to a power inspection and maintenance ladder. Background technique [0002] At present, in the maintenance of electric power, it is often necessary to overhaul the overhead cables located at a higher position. The maintenance ladder is a commonly used tool for climbing up. However, most of the maintenance ladders currently used are made of aluminum alloy, which has good electrical conductivity. When it is necessary to erect When the leaning of the maintenance ladder is electrified due to electrical equipment leakage or other reasons, or when the maintenance ladder is misoperated and touches the live equipment, it is very easy to electrically injure the operator or cause a short circuit of the electrical equipment due to the conduction of the maintenance ladder, resulting in a safety accident. In addition, the currently used maintenance ladder does not have the functi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F7/02B66F17/00G01R19/145
CPCB66F7/02B66F17/006G01R19/145
Inventor 边文浩徐铖谢辰璐李娜薛洁冯金帅鞠鹏
Owner STATE GRID SHANDONG ELECTRIC POWER
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