Construction method of concrete floor prefromed opening of dust-free chamber workshop

Abstract

The invention provides a method for constructing preformed holes on a concrete floor slab of a dustless factory building. The method can be carried out in the way of precasting the concrete floor slab having preformed holes in advance at a construction site other than the scheduled site for a building, then moving the concrete floor slab to the field of the scheduled site for a building to assemble, or the method can also be carried out in the way of directly constructing the concrete floor slab having preformed holes on site at the scheduled position of the floor slab of a building. The method comprises the steps of (1) fixing a fixing unit on a template, (2) sleeving a casing pipe on the fixing unit, (3) sleeving an underlay component above the casing pipe, (4) grouting the underlay component to form the floor slab, and (5) sleeving a cover plate above the underlay component, wherein the cover plate is used as a floor face of the concrete floor slab of a building.

Description

technical field [0001] The invention relates to a construction method for reserving openings on concrete floors, in particular to a construction method of directly fixing some components of a forming device on the concrete floor and reserving openings on the concrete floor. Background technique [0002] refer to figure 1 , 2 The three-dimensional exploded view and combined sectional view of the Taiwan Patent No. 449634 invention filed by the applicant shown above, the molding device 1 of the aforementioned patent is installed on a template 10, including: a base 11, several pieces of the The base 11 is fixed to the screw 12 on the template 10, a hollow sleeve 13 axially sleeved on a ring support wall 111 of the base 11, a top cover 14 located above the sleeve 13, and a connecting base 11 And the connecting mechanism 15 of the top cover 14. Wherein the connecting mechanism 15 includes: a rod-shaped threaded piece 151 , and a nut 152 which is under the base 11 and can be scr...

AI Technical Summary

Problems solved by technology

However, due to the poor structural strength of the plastic material, the casing 13 is easily deformed by the pushing of the concrete during the grouting process, that is, the aforementioned patents cannot provide openings with better dimensional accuracy

This kind of lack that will be produced during molding will not cause problems in use when used in conjunction with "raised floors". However, if the concrete floor is to be used directly as a floor, the aforementioned casing 13 that has been squeezed and deformed will It is difficult to cover items such as: cover plates

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