Dust-proof adjustable-height projector

Abstract

The invention discloses a dust-proof adjustable-height projector, and relates to the technical field of multimedia. The dust-proof adjustable-height projector comprises a top plate, wherein a side plate is arranged at the lower surface of the top plate, a driving motor is arranged in the middle of the top plate, an output shaft of the driving motor is fixedly connected with a first belt pulley, the first belt pulley is connected with a second belt pulley through a belt, the second belt pulley is fixedly connected with the middle of a main shaft, a third bevel gear is arranged at the left end of a main shaft, a fourth bevel gear is connected with the third bevel gear in a meshing mode, the fourth bevel gear is fixedly connected with the end part of a rotating shaft, winding wheels are arranged on the front side and the rear side of the rotating shaft, a hanging rope is arranged outside the winding wheels, the lower end of the hanging rope is connected with the left side of a bottom plate, and the projector is arranged on the upper portion of the bottom plate. The dust-proof adjustable-height projector is provided, as the side plate and the bottom plate are arranged on the device, the projector can be completely closed through the side plate, the bottom plate and the top plate after the bottom plate drives the projector to move upwards, and it is guaranteed that the normal use ofthe projector is not influenced by the outside dust.

Description

technical field [0001] The invention relates to the technical field of multimedia, in particular to a dustproof and height-adjustable projector. Background technique [0002] Multimedia teaching means that in the teaching process, according to the teaching objectives and the characteristics of the teaching objects, through teaching design, rationally select and use modern teaching media, and organically combine with traditional teaching methods, participate in the whole teaching process together, use various media information For students, a reasonable teaching process structure is formed to achieve the optimal teaching effect. Multimedia is an indispensable equipment concept for modern educational technology education such as computers, projectors, slides, display stands, videos, broadcasts, movies, electronic whiteboards, computers, etc., using modern educational theories and technologies, through the teaching process and resources. Design, development, application, manag...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent (notification number: CN205080357U) discloses a dust-proof and height-adjustable projector, which belongs to the technical field of teaching and office equipment. The dust-proof and height-adjustable projector includes a drive motor support, a drive motor, a transmission chain, The crank rocker mechanism and the upper splint of the projector; the drive motor is supported and installed on the ceiling through the drive motor, the drive motor is connected with the transmission chain, the transmission chain is connected with the crank rocker mechanism, the crank rocker mechanism is connected with the upper splint of the projector, and the lower projector The splints are connected, the upper splint of the projector is hinged with the ceiling device, the ceiling device is fixed on the ceiling, and a projector cabin is arranged between the upper splint of the projector and the lower splint of the projector. Line holes, a control cavity is set in the projector cabin, an automatic door is installed on the projector cabin, and the automatic door is connected to the projector cabin through the door shaft. The overall structure of the device is relatively complicated, the reliability is low, and the projector is not completely closed. , there will still be dust entering, so the device needs to be improved

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