Cross-arm bracket and method for replacing cross arm through employing same

Abstract

The invention discloses a cross-arm bracket and a method for replacing a cross arm through employing the same. The cross arm bracket comprises two square steel tubes, and the square steel tubes are provided with a leaning frame. The inner side of each square steel tube is provided with a left jacking frame and a right jacking frame, and corresponding ends of the two square steel tubes are hinged to an upper connection plate and a lower connection plate, which are arranged in a staggered manner, and are provided with a plurality of connection position adjustment holes. The interiors of upper and lower adjustment holes are provided with connection bolts and nuts, and the other sides of the two square steel tubes are provided with screws. The rear ends of the screws are hinged to the rear square steel tube, and one end, corresponding to the screws, of the front square steel tube is provided with gaps. The front parts of the screws are inserted into the gaps, are provided with threads, and are provided with locking nuts through the threads. The distance between the two square steel tubes, corresponding to the end, is adjusted through the locking nuts. The bracket is simple in structure, is convenient to disassemble, is high in work efficiency, is low in labor intensity, is high in safety factor, and can be operated by one person on a rod.

Description

technical field [0001] The invention relates to a cross arm bracket. Background technique [0002] The cross-arm is one of the most basic materials on the overhead power line. Its main function is to support the power line. It is used in a wide range and has a high frequency. There are many operations to replace the cross-arm and install a new cross-arm. The following two methods are mainly used when replacing the cross-arm in electric power work maintenance. The first method is to replace the cross-arm by climbing on the pole: two people are required, and it is not safe to put the cross-arm on the safety belt; the disassembly and adjustment need to be supported by hands, and the personnel are laborious; the time required is 30 minutes. The second method is to use an aerial work vehicle to replace the cross-arm. It is necessary to support the cross-arm itself with the arm, the human body bears a larger moment, the disassembly and adjustment are more difficult, and it is eas...

AI Technical Summary

Problems solved by technology

The first method, Replacing the cross-arm by personnel boarding the pole: two people are required, and it is not safe to put the cross-arm on the safety belt; the disassembly and adjustment need to be supported by hands, which is laborious; the time required is 30 minutes

The second method is to use an aerial work vehicle to replace the cross-arm. It is necessary to support the cross-arm itself with the arm. The human body bears more torque, disassembly and adjustment are more difficult, and it is easy to fall from a high altitude.

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