Portable ideology and politics teaching projection equipment

Abstract

The invention relates to portable ideology and politics teaching projection equipment. The equipment comprises a case, a lens, a projection light source and an air inlet are arranged at a front part of the case; two threaded holes and loudspeakers are symmetrically arranged at a left side and a right side of the case; a U-shaped handle is further arranged on the case, and long holes are formed attwo ends of the U-shaped handle along the length direction, the long holes and the threaded holes are connected through thumb screws; a display screen and operation buttons are arranged at the upper part of the case; a multimedia signal interface, a charging interface and an air exhaust are arranged at the back part of the case, and the locations of the air inlet and the air exhaust are correspondingly arranged. The projection equipment disclosed by the invention has the advantages that a teacher can conveniently adjust the projection height of the equipment along the long hole direction of the U-shaped handle and then the equipment can be fastened through the thumb screws, and the thumb screws can be unscrewed, thereby conveniently carrying the projection equipment by gripping the U-shaped handle; furthermore, the locations of the air inlet and the air exhaust are correspondingly arranged so that the air can smoothly pass the internal of the projection equipment, and the internal radiating is convenient.

Description

technical field [0001] The invention relates to the field of projectors, in particular to a portable ideological and political teaching projection device. Background technique [0002] A projector is an optical instrument that uses optical elements to magnify the outline of a workpiece and project it onto a video screen. It is currently widely used in homes, offices, schools and entertainment venues. The existing fixed-mounted projectors are large in size. 1. It is inconvenient to carry and cannot be applied to scenarios that require mobile office, and the structure and layout of mobile projectors are unreasonable, resulting in poor portability. Contents of the invention [0003] Aiming at the above-mentioned technical problems existing in the prior art, the present invention provides a portable ideological and political teaching projection device. [0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a por...

AI Technical Summary

Problems solved by technology

[0002] A projector is an optical instrument that uses optical elements to magnify the outline of a workpiece and project it onto a video screen. It is currently widely used in homes, offices, schools and entertainment venues. The existing fixed-mounted projectors are large in size. , It is inconvenient to carry, and cannot be applied to scenarios that require mobile office, and the structure and layout of mobile projectors are unreasonable, resulting in poor portability

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