Turning device for precast slab of concrete box culvert

Abstract

The invention relates to a turning device for a precast slab of a concrete box culvert. The turning device comprises a supporting bottom frame, a turning oil cylinder, a hydraulic station and a holding frame, wherein the left end of the holding frame is hinged to the left end of the supporting bottom frame through a first horizontal hinged shaft of a bottom frame part, one end of the turning oil cylinder is hinged to the supporting bottom frame through a second horizontal hinged shaft of the bottom frame part, the other end of the turning oil cylinder is hinged to the right end of the holding frame through a first horizontal hinged shaft of a bracket part, the first horizontal hinged shaft of the bottom frame part, the second horizontal hinged shaft of the bottom frame part and the first horizontal hinged shaft of the bracket part are parallel, a blocking frame is arranged at the left end of the holding frame, and the second horizontal hinged shaft of the bottom frame part is positioned below a plane defined by the first horizontal hinged shaft of the bottom frame part and the first horizontal hinged shaft of the bracket part. The device has the advantage that the horizontally-arranged precast slab of the concrete box culvert can turn by a set angle, the precast slab cannot be damaged during turning, and the problem that the precast slab of concrete box culvert is easily damaged when the precast slab of concrete box culvert is hoisted from a horizontal state to a vertical state through a crane is solved.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering construction, in particular to an overturning device for a prefabricated slab of a concrete box culvert. Background technique [0002] Prefabricated concrete box culvert is a new technology emerging in recent years. Compared with the general cast-in-place concrete box culvert construction, it has the advantages of short construction period, beautiful appearance and high quality, and has been more and more widely used in municipal construction. The precast concrete box culvert is composed of two side walls and one roof (hereafter, the side walls and roof are collectively referred to as concrete box culvert prefabricated slabs), a total of 3 concrete box culvert prefabricated slabs, which are usually placed in a horizontal formwork during prefabrication. In order to save the placement space, after the strength of the concrete box culvert prefabricated slab meets the design requirements, i...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide an overturning device for prefabricated concrete box culvert slabs which is used to prevent the prefabricated concrete box culvert slabs from rotating at a set angle, and solves the problem of hoisting the prefabricated concrete box culvert slabs horizontally by a crane. The problem that the prefabricated slabs of concrete box culverts are easy to be damaged in a vertical way

It can realize pre-turning setting angle, and it is not easy to cause damage when setting up the prefabricated slab of the concrete box culvert

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