Movable die core of concrete core slab and box girder pouring die

Abstract

The invention discloses a movable die core of a concrete core slab and box girder pouring die, belongs to a concrete pouring die and aims to provide a movable die core of a die, which is rapid and convenient in die assembly and disassembly and can prevent the inner surface of a pouring body being damaged. The movable die core of the concrete core slab and box girder pouring die comprises a die core which adopts a tubular structure. The die core is formed by oppositely closing half dies which are shaped like a Chinese character 'ao' or are in a semicircular shape. Each half die is formed by an intermediate plate (3), a left lateral plate (1), a right lateral plate (5), a plurality of left connecting rods (11), a plurality of right connecting rods (9) and pull rods (10), wherein the left lateral plate (1) and the right lateral plate (5) are respectively hinged to the left and right sides of the intermediate plate (3); the left connecting rods (11) are hinged to the left lateral plate (1), the right connecting rods (9) are hinged to the right lateral plate (5); the pull rods (10) are hinged to the corresponding left connecting rods (11) and right connecting rods (9). The movable die core of the concrete core slab and box girder pouring die has the advantages of high efficiency, low labor intensity, small drawing friction force, no damage to the inner surface of the pouring body and the like. The invention discloses a die for pouring a concrete core slab or a box girder.

Description

technical field [0001] The invention relates to a concrete pouring mold, in particular to a mold for pouring concrete hollow slabs or box girders. Background technique [0002] Concrete hollow slabs or box girders are important components of large-scale construction projects such as bridges, tunnels, and high-rise buildings. They are usually poured by installing square or circular tube cores in the outer mold. At present, since the mold core adopts a fixed structure consisting of multiple sections of mouth-shaped or circular cores connected by bolts, construction personnel climb into the core to install or remove bolts when forming and removing the mold. , not only the number of bolts is large and the workload is heavy, but also because the space of some cores is very narrow, personnel cannot enter at all, and the mold core can only be pulled out by a high-power hoist; there is a large draft friction force, and the surface of the casting body is easy defects such as damage....

AI Technical Summary

Problems solved by technology

At present, since the mold core adopts a fixed structure consisting of multiple sections of mouth-shaped or circular cores connected by bolts, construction personnel climb into the core to install or remove bolts when forming and removing the mold. , not only the number of bolts is large and the workload is heavy, but also because the space of some cores is very narrow, personnel cannot enter at all, and the mold core can only be pulled out by a high-power hoist; there is a large draft friction force, and the surface of the casting body is easy Defects such as damage

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