A high-rise, ultra-long cantilever slab formwork support frame

By setting multiple sets of components on the fixing ring of the cantilever slab formwork, and using sharp plug rods and sliding groove structures, the stability problem of the fixing ring when the concrete has not hardened is solved, thus achieving stable fixation of the cantilever slab formwork and a firm connection after the concrete has hardened.

CN116971601BActive Publication Date: 2025-11-14THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
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Patent Information

Application Number
CN202310973161.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-04
Publication Date
2025-11-14
Estimated Expiration
2043-08-04

AI Technical Summary

Technical Problem

The existing cantilever slab formwork lacks supporting components for the fixing rings when the concrete has not hardened, causing the fixing rings to tilt and become unstable, thus affecting the fixing effect of the cantilever slab formwork.

Method used

A high-rise ultra-long cantilever slab formwork support frame was designed. By setting components such as a fixed plate, crossbar, collar, moving rod, connecting rod, plug rod, tilting frame and extension rod on the fixed ring, the sharp plug rod is inserted into the concrete. The fixed ring is stably positioned in the concrete by the cooperation of multiple sets of convex rings, grooves, support rods and protective plates.

Benefits of technology

It improves the stability of the fixing ring in concrete, prevents tilting, ensures the safe fixation of the cantilever slab formwork, avoids the generation of air bubbles at the bottom of the fixing ring during concrete solidification, and enhances the stability and safety of the overall structure.

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Abstract

This invention relates to the field of cantilever slab formwork technology, specifically a high-rise ultra-long cantilever slab formwork, comprising: a fixed plate at the top of a fixed ring; a crossbar with a collar fixed at its end, a protruding ring on the surface of the fixed ring, a movable rod fixed on the surface of the crossbar, a connecting rod fixed on the surface of the fixed ring, an insertion rod fixed at the end of the connecting rod, and an inclined frame fixed on the surface of the insertion rod; and an extension rod at the end of the insertion rod. The beneficial effects are: the fixed ring is inserted into the concrete, and the insertion rod has a sharp interior, facilitating insertion into the concrete. Pressing down the crossbar causes the collar to move downwards on the surface of the fixed ring, the protruding ring stabilizes the collar's position, and the movable rod pushes the force-bearing rod downwards, causing the force-bearing rod to extend from the inside of the insertion rod. The support rod moves in a groove, and the end of the support rod reaches the same horizontal position as the bottom of the insertion rod, increasing the contact area at the bottom.
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Citation Information

Patent Citations

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