Multimedia teaching portable projector rotary device

Abstract

The invention discloses a multimedia teaching portable projector rotary device which comprises main brackets and clamp plates. Grooves for placing auxiliary brackets are formed in the lower ends of the main brackets, the auxiliary brackets are hinged to the inner walls of the grooves, limit barriers are arranged at joints of the auxiliary brackets and the grooves, carrying blocks for supporting aprojector body are symmetrically arranged on the inner sides of the main brackets, a threaded rod is rotationally mounted on the main brackets, an end of the threaded rod penetrates one of the main brackets and is fixed to a first hand wheel, a threaded sleeve is connected onto the threaded rod in a threaded manner, and mounting blocks are rotationally mounted at the lower end of the threaded sleeve. The multimedia teaching portable projector rotary device has the advantages that the multimedia teaching portable projector rotary device is novel in design, the threaded rod can rotate by the aidof the first hand wheel, the projector body can be adjusted under the effects of the threaded sleeve and a connecting rod when the threaded rod rotates, and accordingly the projector body can rotate,can be conveniently adjusted and is high in stability after being adjusted; a movable plate can be directly withdrawn to cling to the main brackets when the multimedia teaching portable projector rotary device is not use, and accordingly the multimedia teaching portable projector rotary device is free of space occupation and convenient to carry.

Description

technical field The invention relates to the field of multimedia technology, in particular to a portable projector rotating device for multimedia teaching. Background technique A projector is an optical instrument that uses optical elements to magnify the outline of a workpiece and project it onto a screen. It can be used for profile measurement with transmitted light, and can also be used to measure the surface shape of a non-through hole and observe the surface of a part with reflected light. The projector is especially suitable for measuring complex contours and small workpieces, such as watch parts, stamping parts, electronic components, templates, molds, threads, gears and forming tools, etc. It has high inspection efficiency and is easy to use; it is widely used in measuring rooms and production workshops. It is especially suitable for the instrumentation and watch industry. A projector, also known as a projector, is a device that can project images or videos onto a...

AI Technical Summary

Problems solved by technology

When projecting images or videos, it is necessary to use a rotating device to adjust the angle of the projector. After the angle adjustment of the existing rotating device, the stability is low. After a period of use, the angle is easy to change, and the existing rotating device The size of the device is fixed, which is not conducive to portability and has disadvantages

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