A formwork device for reserved pipe openings on floor slabs

Abstract

The invention discloses a formwork device for reserved pipeline orifices of floor slabs. The formwork device comprises a reserved sleeve. The reserved sleeves is connected with a floor slab formwork, a flange plate is arranged at an orifice of the reserved sleeve, a fixing device which is connected with the floor slab formwork is arranged at the bottom of the reserved sleeve, at least one group of grooves which are perforated into pipe walls is formed in positions along the axial direction of the reserved sleeve from the orifice to the bottom of the reserved sleeve, an auxiliary sleeve which is inlaid in a post-poured concrete floor slab is in slide fit with the grooves of the reserved sleeve, guide positioning blocks and reinforcing ribs are arranged on the wall of the auxiliary sleeve, the guide positioning blocks inwardly extend, correspond to the grooves in the reserved sleeve and are used for positioning erected pipelines, and the reinforcing ribs outwardly extend, are inlaid in the post-poured concrete floor slab and are used for improving the firmness of the post-poured concrete floor slab. The formwork device has the advantages that the pipeline hole construction quality can be guaranteed, the reserved sleeve is easy to take out, holes are flat, residues are difficult to fall off, the outer walls of pipelines are difficult to damage when the pipelines are mounted, and the pipelines can be positioned without shifting.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a formwork device used for a reserved pipe opening on a floor. Background technique [0002] In recent years, there are more and more measures to control the reserved openings of building floors. Among them, placing the casing directly at the reserved opening is a widely used technical measure. This technical measure is convenient for construction, but there are many problems. It is easy to cause the deviation of the opening and the poor forming quality of the opening. CN 203097286 U discloses a template device for the reserved opening of the floor with a flange, which includes a reserved sleeve arranged in the reserved opening and a top of the reserved sleeve. The flange plate can completely cover the reserved sleeve, the flange plate is detachably connected with the reserved sleeve, and the bottom of the reserved sleeve is provided with a positioning box that snap...

AI Technical Summary

Problems solved by technology

[0002] In recent years, there are more and more measures to control the reserved openings of building floors. Among them, placing the casing directly at the reserved opening is a widely used technical measure. This technical measure is convenient for construction, but there are many problems. It is easy to cause the deviation of the opening and the poor forming quality of the opening. CN 203097286 U discloses a template device for the reserved opening of the floor with a flange, which includes a reserved sleeve arranged in the reserved opening and a top of the reserved sleeve. The flange plate can completely cover the reserved sleeve, the flange plate is detachably connected with the reserved sleeve, and the bottom of the reserved sleeve is provided with a positioning box that snaps and fits with the floor at the reserved hole. device, although this patent solves the problem of hole offset and can reduce the work of plastering and leveling the floor in the later stage, but the forming quality of the hole cannot be guaranteed, and the reserved sleeve will inevitably affect the hole during the removal process. Quality and the removal process is laborious, the reserved casing is not easy to remove, the quality of the hole is relatively rough, the strength of the pipe is easily damaged when the pipe is installed, and the concrete hole is easy to drop slag, the pipe is difficult to locate and will be offset, and the pipe is closed after installation At the opening of the opening, due to the small gap between the pipe and the opening, it is not easy to vibrate when the concrete is poured and closed, and hollowing has occurred, which affects the construction quality. These problems hinder the development of the construction industry

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