Repair device and repair method for concrete delivery pipe

Abstract

The invention relates to the field of pipeline repair, in particular to a concrete delivery pipe repair device and repair method, including a repair liner, and the repair liner includes a plurality of liner segments connected end to end and hinged joints arranged between the liner segments Shaft, the hinged shaft is used to connect two adjacent lining sections, the repairing lining includes contracted state support and repairing state, when the pipeline lining is in the shrinking state or shrinks from the repairing state to the shrinking state, the adjacent two linings The sections are relatively bent, and when the repairing ring stretches from the shrinking state to the repairing state, it touches the deformation, collapse, and defect of the concrete delivery pipe to repair the concrete delivery pipe; the retractable mechanism is set inside the repairing ring , the expansion mechanism drives the repair liner to expand from the contracted state to the repair state. The invention performs intermittent rotary motion, so that the expansion liner can cover up to 360°, and can repair concrete pipes with different inner diameters and different repair positions. Work.

Description

technical field [0001] The invention relates to the field of pipeline repair, in particular to a concrete delivery pipe repair device and repair method. Background technique [0002] Pumping concrete machinery in engineering construction is the most used turnover equipment in engineering construction operations. Using it can greatly improve construction efficiency. However, due to frequent disassembly, external impact, collision and other factors, in the case of long-term use , It will lead to deformation phenomena such as sag and bending in the conveying pipeline of the pumping concrete machine, thereby increasing the conveying resistance and reducing the conveying efficiency, and even some conveying pipelines have to be scrapped in advance due to dents and bends. At present, the external correction method is adopted for the concrete delivery pipes that are bent and sunken, that is, the sunken deformation parts are partially cut and then repaired by repair welding, and the ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a concrete delivery pipe repair device and repair method. This technical solution solves the problem that the existing repair device cannot be applied to concrete delivery pipes with different inner diameters. The repair device and repair method are performed intermittently. Rotational movement enables the expansion liner to cover up to 360°, and repair work can be carried out for concrete pipes with different inner diameters and different repair positions

Images