Hollow casing for in-site casting concrete filling

Abstract

The hollow casing for in-situ cast concrete filling includes hollow casing formed with outer walls and support legs set on the bottom outer wall. The present invention features that the locking parts set on the hollow casing and / or support legs include self-locking hole and self-locking strip and are connected to the anchoring parts inside the hollow casing. Thus, the hollow casing is fixed onto formwork or steel bar easily in high efficiency. The present invention is suitable for slab, roof, wall, foundation board and bridge, especially hollow flat floor slab, of in-situ or prestressed reinforced concrete.

Description

(1) Technical field [0001] The invention relates to a hollow matrix for filling cast-in-place concrete. (2) Background technology [0002] At present, the cast-in-place concrete hollow floor is a widely used floor structure. The lightweight permanent tire molds filled in it include various hollow tubes and boxes, and the boxes are hollow or solid. For example, the patent No. ZL99249798.1, which the applicant applied for on November 29, 1999, is a utility model patent named "fiber-reinforced thin-walled member for reinforced concrete filling", which discloses a thin-walled formwork member, including an upper plate, The surrounding side walls, the lower bottom, and the upper plate, the surrounding side walls and the lower bottom form a polyhedral cavity. Another example is that the patent No. is ZL00203695.9, and the name is called "combined concrete hidden rib floor slab" utility model patent, which discloses a formwork member in its specification, which can be solid or holl...

AI Technical Summary

Problems solved by technology

But when this kind of hollow carcass is applied to the floor construction, the hollow carcass cannot be accurately arranged in the middle layer of the floor, which affects the construction quality of the floor

For this reason, the patent number is ZL01215092.4, and the utility model patent titled "Building Components" discloses a building component that is a polyhedron, which can be hollow or solid. It is arranged in the middle layer of the floor, and the outer wall of the polyhedron is provided with protruding legs, so that when the floor is poured, the legs can ensure that the hollow multi-faceted main cavity is just at the middle layer of the floor. , so as to better solve the above problems, but this kind of building components is inconvenient in the design and construction, and when it is applied to the cast-in-place concrete hollow floor, it is prone to misalignment in the horizontal direction of the building components, which affects the hollow floor. Construction quality, and affect construction efficiency

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