Composite lifting stage

Abstract

A combined elevatable stage comprises a main platform, sub-platforms and a main control system. The main platform includes a base structure (1), main platform fixing and guiding devices (2), and main platform actuating devices (3). The base structure is a steel structure. The main platform fixing and guiding devices are positioned at both ends of the base structure. The main platform actuating devices include hydraulic cylinders disposed symmetrically and hydraulic driving means. Elevatable sub-platforms are attached to the surface of the main platform which can make vertical and relative movement with relevance to the main platform, or individual movement when the main platform moves vertically as a whole. All the sub-platforms can be actuated to move individually, synchronistically or in groups, to create more motion effects and better meet performance needs, while the elevating distance of the whole elevatable stage is also extended.

Description

technical field [0001] The invention relates to an elevating stage, in particular to a hydraulically driven large-span composite elevating stage. Background technique [0002] The stage lifting platform is a common mechanical device in the theater. It is arranged in the stage area to realize vertical lifting movement, participate in performances, achieve special performance effects, and can also transport actors and scenery props. The common stage lifting platforms in theaters at home and abroad are generally long strips, the length is equivalent to the width of the stage entrance of the theater, about 16m ~ 18m, and the width is between 3m ~ 4m. The lifting movement of the lifting table is realized by driving methods such as wire rope, chain, rack and pinion, screw-nut, etc. on both sides of the platform structure. The specific driving method depends on the speed, stroke and civil engineering conditions. The table structure of the lifting platform is single-layer or double...

AI Technical Summary

Problems solved by technology

For these lifting platforms, the span is too large, and the lifting platform is subject to large deformation due to the weight of the platform structure and the external load, which affects the use of the lifting platform. Therefore, the traditional transmission route and driving method cannot meet the use requirements.

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