Portable multimedia projector for teaching

Abstract

The invention discloses a portable multimedia projector for teaching. The portable multimedia projector comprises a portable device, wherein the side end face of the portable device is provided with an embedded handle, the inside of the portable device is rotatably connected with a rotating clamping arm for fixing a projector main body, a lifting chamber is formed in the inside of the portable device, the projector main body is movably connected to the inside of the lifting chamber, a volume-variable liquid accumulation chamber is formed in the portable device, the interior of the liquid accumulation chamber is filled with liquid, the liquid accumulation chamber is communicated with the lifting chamber, the bottom part of the projector main body is provided with a floating plate, and the side end face of the projector main body is provided with a projection lens for projection. Through the volume change in the liquid accumulation chamber, the liquid level change in the lifting chamber is controlled to push the floating plate to control the change of the position of the projector main body, and an existing projection structure is improved, so that the projector is smaller in size and convenient to carry.

Description

technical field [0001] The invention relates to the technical field of projector equipment, in particular to a portable multimedia projector for teaching. Background technique [0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to a computer, VCD, DVD, BD, game console, DV, etc. through different interfaces to play the corresponding video signal. [0003] Projectors are widely used in homes, offices, schools, and entertainment venues. According to different working methods, there are different types such as CRT, LCD, and DLP. [0004] Chinese Invention Patent Publication No. CN105972391A, the present invention discloses a portable projector, which includes a base, a projector body, four connecting rods, and several springs; the base includes four first grooves and second grooves; The connecting rod includes a first joint rod and a second joint rod; the first joint rod includes several limit holes;...

AI Technical Summary

Problems solved by technology

[0005] The invention uses a spring to accommodate the projector and buffer it at the same time. Most of the existing portable projectors need to reserve enough heat dissipation space inside, which leads to the large size of the projector and makes it difficult to carry, and the operation in daily use is relatively cumbersome.

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