Multifunctional teaching device based on computer multimedia technology

Abstract

The invention discloses a multifunctional teaching device based on a computer multimedia technology. The device comprises an instrument. Four corners on the bottom of the instrument are welded with supporting feet. The front surface of the instrument is provided with a lens, and the lens is embedded into the front surface of the instrument. The rear surface of the instrument is connected with a maintenance door through a hinge. The maintenance door is arranged in the device, and the maintenance door is connected with one end of the instrument through the hinge, and the other end is clamped with an instrument groove through a maintenance door bulge and is absorbed and fastened through a limiting magnet and fixing magnet, so that fixation of the maintenance door and the instrument is more stable. When the internal part of the instrument needs overhaul, the maintenance door is easy to open to perform maintenance and overhaul on the internal part of the maintenance door, and efficiency ofmaintenance and overhaul is improved. A detachable dustproof filter screen and a dustproof filter screen projection can be embedded into a concave portion of the instrument, so sealing property is improved, dust would not enter the instrument is ensured when the dustproof filter screen is pulled. When the dustproof filter screen is to be cleaned, the dustproof filter screen is pulled out from a sliding groove.

Description

technical field [0001] The invention belongs to the technical field of multimedia teaching, and in particular relates to a multifunctional teaching device based on computer multimedia technology. 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 to participate in the whole teaching process and form a reasonable teaching process structure , To achieve the optimal teaching effect, use the projector with the screen teaching in the teaching process. [0003] However, there are still some unreasonable factors in the use of the existing multifunctional teaching device. When the existing multifunctional teaching device is in use, the cover plate of the instrument body is fixed by screws. When the instrument body is damaged, it needs...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of multi-functional teaching device based on computer multimedia technology, to solve the existing multi-functional teaching device proposed in the above-mentioned background technology when using some unreasonable factors, the existing multi-functional When the teaching device is in use, the cover plate of the instrument body is fixed by screws. When the instrument body is damaged and needs to be repaired internally, it is time-consuming and laborious to dismantle multiple screws and remove the cover plate; the existing multi-functional teaching device is often used. The dust-proof filter needs to be cleaned frequently. The cleaning of the dust-proof filter of the traditional instrument body is time-consuming, and the seal between the dust-proof filter and the instrument body is not tight, so that dust falls into the instrument body from its joints.

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