Screw motor zoom control device of stage lamp

Abstract

The invention discloses a screw motor zoom control device of a stage lamp. The device comprises a bottom plate; first through holes are formed in the positions, corresponding to one sides of a light transmitting hole, of the top end of the bottom plate correspondingly; feed screw nuts are mounted in positions, corresponding to the first through holes, of the top end of a mounting plate correspondingly; screw motors are mounted in positions, corresponding to the first through holes, of the bottom end of the bottom plate correspondingly; and lead screws are mounted in the middles of the top endsof the screw motors correspondingly. The screw motor zoom control device is scientific and reasonable in structure and safe and convenient to use, the lead screws are arranged, the screw motors drivethe lead screws to rotate, the mounting plate is made to move upwards through the feed screw nuts in a cooperative mode, the push force is large, it can be guaranteed that a zoom lens stably moves, and the situation that the zoom lens is difficult to move is reduced; and slide bars are arranged, the mounting plate is limited from moving through the slide bars, probable left-right oscillating in the moving process of the mounting plate is reduced, by arranging linear bearings, the stability of the moving process of the mounting plate and the zoom lens is guaranteed, and the stability of the whole adjusting process is guaranteed.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a screw motor zoom control device for stage lighting. Background technique [0002] Stage lamps are one of the types of lamps. With the rapid development of social economy and the increase of cultural and entertainment activities, in order to improve the rendering power and performance effect of the stage surface, the sense of space and time of the stage will be created by lighting the way to shape the stage. The external image of the performance, the existing stage lamps need to adjust the distance between the zoom lens and the objective lens to achieve an effective zoom effect, thereby changing the intensity and divergence range of the light, but the zoom control device structure of the stage lamps currently on the market Simple, the zoom control is often carried out by the combination of drive motor, pulley and slider, and its transmission force is limited. When moving a larg...

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Problems solved by technology

[0003] The present invention provides a screw motor zoom control device for stage lamps, which can effectively solve the above-mentioned background technology. The zoom control devices for stage lamps currently on the market have a simple structure, and are often carried out by using the cooperation of drive motors, pulleys and slide rods. Zoom control, its transmission force is limited, when moving a large and heavy zoom lens, it is prone to insufficient thrust, which makes it difficult to move the zoom lens, and at the same time, the stability of this zoom method is poor, and the zoom lens is moving The problem of easy shaking during the process

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