Winding-type projection curtain with high stability and application method thereof

Abstract

The invention relates to the field of multimedia images, in particular to a winding-type projection curtain with high stability and an application method thereof. The winding-type projection curtain comprises a curtain winding shaft, a projection curtain, a counterweight drawing bar and a controller, wherein the controller controls the curtain winding shaft to wind and stretch the projection curtain, the upper side edge of the projection curtain is wound on the curtain winding shaft, the lower side edge is fixed on the counterweight bar, a connection block I, a connection block II and a connection block III are respectively symmetrically and successively arranged between two ends of the curtain winding shaft and corresponding end part of the counterweight drawing bar from top to bottom, the connection block I is fixed on the end part of the curtain winding shaft, a connection block IV is hinged between the connection block I and the lower corresponding connection block II by virtue oftwo connection bars and a pin shaft, another connection block IV is also hinged between the connection block II and the lower corresponding connection block III by virtue of two connection bars and apin shaft, the connection block III is fixed on the end part of the counterweight drawing bar, a counterweight block is fixed in the middle part of the lower surface of the counterweight drawing bar,and a fixed seat is arranged right below the counterweight block.

Description

technical field [0001] The invention relates to the field of multimedia images, in particular to a roll-up projection screen with high stability and a use method thereof. Background technique [0002] Multimedia technology is a rapidly developing comprehensive electronic information technology, which has brought directional changes to traditional computer systems, audio and video equipment, and will have a profound impact on mass media. Multimedia computers will accelerate the process of computers entering families and all aspects of society, bringing profound revolutions to people's work, life and entertainment. Multimedia can also be used in digital libraries, digital museums and other fields. In addition, traffic monitoring can also use multimedia technology for related monitoring. Multimedia is a human-computer interactive information exchange and dissemination medium that combines two or more media in a computer system. The media used include text, pictures, photos, so...

AI Technical Summary

Problems solved by technology

Most of the existing projection screens adopt a roll-up structure, which saves space and is easy to manage. However, the projection screen of this structure is naturally drooping when used, so it is easy to cause the projection screen to shake horizontally. It cannot achieve a good projection effect, and it is prone to wrinkles during use. In view of this, we propose a roll-up projection screen with high stability and its use method

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