Projector for primary school students

Abstract

The invention relates to the technical field of an accessory device for primary school teaching and learning, especially to a projector for primary school students. A large amount of heat generated bythe projector during the projection process can be dissipated timely, so that components arranged in the projector are protected from being damaged and thus the usage reliability is improved; and thelens protection is also enhanced and the lens is protected from being collided, so that the service life of the lens is prolonged and the practicability is enhanced. The projector comprises a projector body; a lens is electrically connected to the right side of the front end of the projector body; and a control panel is connected to the left side of the front end of the projector body electrically. To be specific, the projector body is composed of four sets of placement plates, four sets of threaded tubes, four sets of threaded rods, a heat dissipation box, a heat dissipation fan, an upper grid plate, a lower grid plate, a plurality of groups of refrigeration tubes, a controller, a front cover, a left slide plate, a right slide plate, four sets of buffer springs, a rubber protection board, two sets of left fastening bolts and two sets of right fastening bolts. A left chute and a right chute are formed in the left end and the right end of the projector body.

Description

technical field [0001] The invention relates to the technical field of teaching and learning attachments for primary school students, in particular to a projector for primary school students. Background technique [0002] As we all know, a projector for primary school students is an auxiliary device used in the teaching process of primary school students to project learning courseware so that students can observe learning courseware more clearly, and it has been widely used in the field of primary school student teaching; existing The projector for elementary school students includes a projector body, a lens is arranged on the right side of the front end of the projector body, an additive protective cover is arranged on the front end of the lens, and a control panel is arranged on the left side of the front end of the projector body; When using the projector, first open the rubber protective cover on the lens, electrically connect the courseware to be projected through the d...

AI Technical Summary

Problems solved by technology

[0002] As we all know, a projector for primary school students is an auxiliary device used in the teaching process of primary school students to project learning courseware so that students can observe learning courseware more clearly, and it has been widely used in the field of primary school student teaching; existing The projector for elementary school students includes a projector body, a lens is arranged on the right side of the front end of the projector body, an additive protective cover is arranged on the front end of the lens, and a control panel is arranged on the left side of the front end of the projector body; When using the projector, first open the rubber protective cover on the lens, electrically connect the courseware to be projected through the data transmission device, and then operate the control panel to project the courseware to be projected on the wall or screen through the lens , The projector body is a common electrical device on the market. When you buy it back and use it, you only need to connect it according to the instruction manual, so I won’t repeat it here; During the process, a lot of heat will be generated. If the heat is not dissipated in time, it is easy to burn out the components inside the projector body, thus affecting the use of the projector body and resulting in low reliability in use; and the rubber protective cover that comes with the lens The protection is poor, the lens is often easily damaged and bruised, the service life is reduced, and the practicability is poor

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