Scissors-fork type lifting stage

Abstract

The invention discloses a scissor-type lifting stage, which relates to the technical field of stage machinery equipment, and aims to solve the problems in the prior art that the gravity of the lifting stage is concentrated on the vertically arranged screw, which causes the lifting stage to rise and fall unsteadily and has a low safety factor. Problem; it includes a support frame, a base for fixing the support frame, and a stage board installed on the upper end of the support frame. There are support screws parallel to the stage board between the support frames, and a scissor lift is provided between the support screw and the stage board. Mechanism, the scissor lift mechanism includes an upper connecting column and a lower connecting column, two lifting plates are arranged crosswise between the two upper connecting columns and the lower connecting column, the upper ends of the two lifting plates are hinged with the upper connecting column, and the lower ends of the two lifting plates It is hinged with the lower connecting column, and the supporting screw is provided with a drive mechanism that drives the lower connecting column to move in the opposite direction. By implementing the technical solution, the gravity of the stage can be transferred to the supporting frame to form multi-point support, improve the safety factor, and realize rapid lifting of the stage.

Description

technical field [0001] The present invention relates to the technical field of stage machinery equipment, and more specifically relates to a scissor lift stage. Background technique [0002] The lifting stage is one of the most widely used equipment in the under-stage equipment of stage machinery. It is equipped with a large number of various types of lifting stages in professional opera houses, dance theaters, and drama theaters, even in some theaters that mainly use turntables. , the drum-shaped turntable is also equipped with lifting stages or lifting blocks of different specifications; many internationally renowned concert halls are equipped with lifting stages for bands, choruses or large musical instruments; Changes, the entire stage is covered with a lifting stage designed according to the modulus. [0003] The patent with the application number CN201520893533.7 discloses a lifting stage, including a motor, a hydraulic coupling, a reducer, a screw, and a stage board....

AI Technical Summary

Problems solved by technology

This technical solution uses the cooperation of the screw screw pair to lift the stage table, which fundamentally achieves intrinsic safety. However, this technical solution still has the following disadvantages: First, the gravity of the lifting stage is concentrated on the vertically arranged screw , causing the lifting stage to be unstable, unstable, and low in safety factor; the second is to use the cooperation of the screw screw pair to make the stage table rise and fall, and the lifting speed of the stage can only be adjusted by adjusting the motor speed, and the rapid lifting can cause the motor speed to be unstable. Stable, low safety factor

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