Prefabricated floor slab for a building
The floor slab, designed with a combination of I-shaped limiting frame and spring, solves the problem of low splicing efficiency of semi-prefabricated floor slabs, achieves rapid fixing and improves concrete strength, and improves construction progress.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI INTERIOR DECORATION ENG CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-24
AI Technical Summary
The existing semi-prefabricated floor slabs require a lot of labor to rotate bolts during splicing and assembly, resulting in low assembly efficiency and affecting the construction progress.
The design incorporates a combination of a first floor slab main body, a second floor slab main body, an I-shaped limiting frame, a lever plate, a guide groove, a guide block, a straight rod, a protective groove, a pressure plate, an insert rod, a guide rod, a spring, a limiting groove, and a positioning socket. The I-shaped limiting frame is inserted into the limiting groove, and the spring's elasticity allows the insert rod to be inserted into the positioning socket, achieving rapid fixation.
It improved the assembly efficiency of floor slabs, accelerated the construction progress, and enhanced the strength of the poured concrete through steel trusses.
Smart Images

Figure CN224549452U_ABST