Image projection device applied to promotion display platform and use method of image projection device

Abstract

An image projection device applied to a sales promotion display platform disclosed by the present invention comprises a lower shell and an upper shell, the lower shell is provided with a projection head, the bottom surface wall of the interior of the lower shell is fixedly connected with a bottom table, the bottom table is rotatably connected with a rotating shaft, a rotating shaft is fixedly connected with a gear and a rotating table, the gear and the rotating table are fixedly connected with the upper shell, and the upper end face of the rotating table is fixedly connected with a film containing frame. The using method of the image projection device applied to the promotion display platform comprises the following steps: S1, projection; S2, dimming; and S3, replacing projection information. According to the device, a servo motor drives a rotating wheel to rotate, clamping teeth on the rotating wheel drive a gear to rotate, a rotating shaft drives a film placing frame to rotate, the gear rotates to enable a first clamping block and the gear to slide relatively, a first spring is compressed, and after a next film rotates to a projection position, the compressed first spring needs to restore to the original shape, the first clamping block is driven to limit the gear, and the precision is high.

Description

technical field [0001] The invention relates to the technical field of image projection, in particular to an image projection device applied to a promotional display platform and a method for using the same. Background technique [0002] Slide projection device, because it generally has a switchable multi-slide carousel, can switch different projection images (pictures), so it has a good application prospect in children's teaching, interesting projection or projection of environmental atmosphere, because slides are usually It is a kind of film negative, and the projection device mainly enlarges the picture printed on the film negative through optical projection, and projects it onto the wall, curtain or ceiling to project the pattern printed on the film or create a Specific environmental atmospheres or scenes, such as projection to create a starry sky environment or ocean environment, or linkage switching through multiple projection patterns, are used to tell moving stories ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the image projection devices used for promotional display platforms on the market use manual switching of mechanical devices or turntables to switch the projected images (pictures). The accuracy is not high, causing the film to be misaligned with the projection head. Different ambient brightness needs to adjust the brightness of the light source of the projector. The brightness adjustment of the light source of the traditional projector is often realized by changing the input voltage or current of the electrical appliance, and frequent changes in voltage or current will cause the circuit components in the light source to be easily damaged. The service life is greatly shortened and the stability is not high

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