Method for hoisting self-release vertical upright rod and special lifting tool

Abstract

The invention relates to a method for hoisting a self-release vertical upright rod and a special lifting tool, and belongs to the technical field of electrical network construction. The special lifting tool comprises a positioner (6), a special suspension cable (1), a suspension hook, a pulley release (5), a release rope (3) and a lock catch (4); the pulley release consists of a pulley and a suspension ring connected together; each of the two ends of the special suspension cable is provided with a cable sleeve (8); the two ends of the suspension cable are put together to form a double suspension cable; the double suspension cable is connected with the cable sleeve via the lock catch; one end of the release rope is connected with the lock catch, and the other end of the release rope traverses the pulley of the pulley release; and the suspension ring of the pulley release is hung on the suspension hook. The hoisting method and the special lifting tool have the benefits of being low in risk, without need for manual rod-climbing release, safe, reliable, fast in rod erecting, reduced in processes of rod-climbing release, rod erecting, rod-position recalibration and the like, reduced by at least half time, high in quality, vertical in rod positioning, convenient to measure and calibrate, and improved in construction quality.

Description

technical field [0001] The invention relates to a self-release type vertical pole hoisting method and a special hoisting tool, belonging to the technical field of power grid construction. Background technique [0002] In the power grid construction, a single steel wire rope is used for the vertical pole. When erecting the pole, the pole cannot be erected vertically, but must be tilted into the pole pit. The cover also needs to be unbuckled by manual climbing. The background technology has the following problems: the safety risk is high, the rope buckle needs to be manually climbed on the pole, and there are dangerous points such as falling from a high altitude and injuring people when the pole is inverted; There are three labor-intensive and time-consuming links such as the position; the construction quality is low, and the shaft will roll along the arc of the pole base during the process of tilting the shaft into position and then vertically, which will inevitably cause la...

AI Technical Summary

Problems solved by technology

The background technology has the following problems: the safety risk is high, the rope buckle needs to be manually climbed on the pole, and there are dangerous points such as falling from a high altitude and injuring people when the pole is inverted; There are 3 labor-intensive and time-consuming links such as the position; the construction quality is low, and the shaft will roll along the arc of the base during the process of tilting the shaft into position and then vertically, which will inevitably cause lateral displacement, and the pole position is prone to large deviations

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