A drain pit bottom plate tool type formwork and a construction using method thereof

The invention provides a drain pit bottom plate tool type formwork and a construction using method thereof. The drain pit bottom plate tool type formwork comprises a group of upright water-stop screws (2) which can be welded to an upper layer rebar (4) and a lower layer rebar (5) of a drain pit bottom plate up and down, a rectangular steel plate (1) which is installed at the tops of the water-stop screws (2) in an inserted manner and provided with a group of insertion holes, and bolts (3) arranged at the top ends of the water-stop screws in a mating manner. The steel plate and the bolts are used for fixing a drain pit bottom plate, so that the construction method is simple and effective, construction costs are low and quality is high. The tool type formwork is simple to machine and manufacture, is reasonable in structural stress and is reusable; the materials for the tool-type formwork are easy to obtain. 集水坑底板工具式模板及其施工使用方法，所述集水坑底板工具式模板包括上下可分别焊接于集水坑底板的上层钢筋(4)和下层钢筋(5)上的组直立的止水螺杆(2)、插装在止水螺杆(2)顶部的带组插孔的矩形钢板(1)、配装在