Foldable formwork device for cast-in-place concrete door window

Abstract

The invention relates to a foldable formwork device for a cast-in-place concrete door window. The foldable formwork device comprises a folding formwork frame; the folding formwork frame comprises an upper formwork frame body, a lower formwork frame body, a left formwork frame body and a right formwork frame body; one end of the upper formwork frame body is hinged to the upper end of the left formwork frame body, and the other end of the upper formwork frame body is hinged to the upper end of the right formwork frame body; the lower end of the left formwork frame body is hinged to one end of the lower formwork frame body, and the lower end of the right formwork frame body is hinged to the other end of the lower formwork frame body; the upper formwork frame body and the lower formwork framebody are the same in structure, and the left formwork frame body and the right formwork frame body are the same in structure and each of a two-segment structure; the position between an upper-half left formwork frame main body and the upper formwork frame body is connected with an upper left supporting and adjusting assembly; the position between an upper-half right formwork frame main body and the upper formwork frame body is connected with an upper right supporting and adjusting assembly; the position between a lower-half left formwork frame main body and the lower formwork frame body is connected with a lower left supporting and adjusting assembly; the position between a lower-half right formwork frame main body and the lower formwork frame body is connected with a lower right supporting and adjusting assembly; and the position between the upper-half left formwork frame main body and the upper-half right formwork frame main body is connected with a middle supporting and adjusting assembly. The foldable formwork device has the advantages that the structure is simple, quick formwork removing can be achieved, the working efficiency is improved, the labor intensity is reduced, and the repeated utilization rate is high.

Description

Technical field [0001] The invention belongs to the field of construction technology, and particularly relates to a foldable formwork device for cast-in-place concrete doors and windows. Background technique [0002] At present, in the construction of concrete walls of high-rise buildings, scattered support is generally used to support and strengthen the formwork of doors and windows, that is, wood squares and iron nails or steel pipes and tension bolts are used for scattered reinforcement. There are three disadvantages of this reinforcement method: First, the reinforcement effect is poor, and the expansion mold or the mold corner leakage is easy to occur. The weak link of the door and window reduces the quality of the concrete wall components, and increases the amount of cleaning and repair work for the subsequent processes. The second is that there is no turnover type tool, the turnover rate of scattered materials is low, and the material is wasted; the third is that it consume...

AI Technical Summary

Problems solved by technology

This reinforcement method has three disadvantages: first, the reinforcement effect is poor, and it is prone to mold expansion or mold angle leakage, which reduces the quality of concrete wall components due to the weak link of doors and windows, and increases the workload of cleaning and repairing for subsequent processes The second is that there is no turnover tool, and the turnover rate of scattered materials is low, which wastes materials; the third is that it consumes a lot of working hours, which not only increases labor costs, but also delays the progress of wall construction

This formwork reinforcement technology has not been improved for a long time because the quality and safety weight of door and window formwork construction in the construction of concrete structures is not large, and because doors and windows are components with a large quantity and wide area, they have formed a pattern in the construction of concrete walls in high-rise buildings. The short board effect that hinders the improvement of technical and economic efficiency

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