Prestressed bellows dredge and method of use

Abstract

The invention discloses a prestress corrugated pipe dredger and a using method thereof which aim at solving the problem in the prior art that a pulling rope cannot be stretched in the later period due to the fact that concrete grout flows into a hole channel of a prestress corrugated pipe easily in a leakage mode and blocks the hole channel of the prestress corrugated pipe when the concrete grout is solidified. The dredger is arranged on the pulling rope and comprises a plurality of partition pieces and a plurality of cutting pieces. The partition pieces and the cutting pieces sleeve the pulling rope alternatively, and the partition pieces on the head and the tail are fixedly connected with the pulling rope. The cutting pieces have at least two size specifications and are arranged along the pulling rope from the small to the big. By means of the dredger, the concrete grout in the hole channel of the prestress corrugated pipe can be cut, dispersed and carried out of the pipe smoothly, so that the pulling rope can be stretched in the prestress corrugated pipe in the later period to exert prestress.

Description

technical field [0001] The invention relates to a building construction tool, in particular to a prestressed bellows dredger for preventing concrete clogging and a usage method thereof. Background technique [0002] In building construction, the prestressed corrugated pipe is pre-embedded in the concrete. After the concrete is poured and the concrete reaches a certain strength, the prestressed steel strand, that is, the traction rope, is threaded in the channel of the prestressed corrugated pipe. During the pouring of concrete, concrete slurry is easily leaked into the channel of the prestressed corrugated pipe. After the concrete slurry accumulates and solidifies, the channel of the prestressed bellows will be blocked, resulting in the problem that the steel strand cannot be stretched later. This is a common quality problem in engineering construction. [0003] Therefore, how to provide a construction tool with simple structure, reliable performance, convenient assembly an...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a prestressed corrugated pipe dredger and its use method, which has simple structure, reliable performance, convenient assembly and disassembly, and can cut and disperse the concrete slurry accumulated in the prestressed corrugated pipe channel and take it out of the pipe smoothly , to solve the problem of channel blockage and aperture reduction caused by slurry leakage in the channel of the prestressed bellows, and ensure that the traction rope can be stretched in the prestressed bellows in the later stage to apply prestress

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