Strain tower used for emergency repair of extra-high voltage power transmission line

Abstract

A strain tower used for emergency repair of an extra-high voltage power transmission line is formed by combining rectangular frame-shaped strain tower post modules. Each rectangular frame-shaped strain tower post module is formed by integrally combining three cubic strain tower post units. Four hollow cylinders are arranged at four corners of each rectangular frame-shaped strain tower post module correspondingly for bearing vertical loads of the strain tower used for emergency repair. The upper end face and the lower end face of each rectangular frame-shaped strain tower post module are each provided with 12-24 installing holes, and the installing holes are used for fixing the strain tower post modules which are vertically combined and installed. Four guiding and positioning pins are arranged at the four corners of the upper end face of each strain tower post module correspondingly, and the guiding and positioning pins are used for guiding and positioning when the strain tower post modules are vertically combined and installed. The strain tower post columns of the strain tower used for emergency repair can be manufactured integrally and do not need to be combined after being manufactured in a split mode, so that the efficiency is improved, the cost is lowered, and use is convenient; the strain tower is resistant to axial pressure and tension force and is high in bending moment and shearing force; and the strain tower is handy to transport, the erecting process is simple, and the manufacturing cost is low.

Description

technical field [0001] The present invention relates to emergency repair equipment for transmission lines. Specifically, the present invention relates to emergency repair equipment for ultra-high voltage transmission line tension towers. More specifically, the present invention relates to a tension tower for emergency repair of ultra-high voltage transmission line tension towers. Background technique [0002] When transmission lines, such as ultra-high voltage transmission lines of 220kv or above, encounter extreme natural disasters such as violent storms, earthquakes, rain disasters, snow disasters, and earthquakes, the towers of ultra-high voltage transmission lines often collapse. As a result, the high-voltage transmission line section of the collapsed iron tower and its support will endanger its nearby traffic facilities, such as highways, railways and other facilities, as well as various civil facilities and production equipment of factories and mines, resulting in serio...

AI Technical Summary

Problems solved by technology

[0007] However, according to this technical scheme, the four uprights of the unit body are outer cylinders, and the inside of the cylinder is hollow; the width of the crosspiece of the unit body is much smaller than the width of the upright column; the connecting holes of the unit body are located inside the four corners; the structural strength is not enough, and it is necessary to add holes position connection plate; and because of the hole position connection plate, the internal mold cannot be dislodged, and multiple one-piece manufacturing cannot be done at one time. Instead, it is combined after split-type manufacturing, which affects efficiency and cost, and is inconvenient to use

[0008] Therefore, the strength of the combined high-voltage line iron tower column-type emergency repair tower unit body involved in the technical solution of the above patent application is insufficient, and it is difficult to bear the lateral load on the side of the iron tower cross arm. Difficult to apply to the emergency repair of tension poles and towers with high requirements on the cross-arm side line load

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