Projector convenient for calibrating projection position and good in stability

Abstract

The invention discloses a projector convenient to calibrate a projection position and good in stability. The projector comprises a projector body, lifting mechanisms, a fixing mechanism and an air passage. A bottom plate is fixed with the lower surface of the projector body through bolts. A rotating rod is mounted below the middle position of the bottom plate. A supporting plate is arranged on theouter side of the rotating rod. A rotating mechanism is mounted below the rotating rod. The lifting mechanisms are installed at the four corners of the outer edge of the supporting plate correspondingly. A mounting box is connected below the lifting mechanisms. The fixing mechanism is connected with the lower portion of the mounting box. A lifting motor is mounted in the mounting box. A transverse plate is fixed on the outer surface of the inner side of the mounting box. An air pipe is mounted on the lower surface of the transverse plate. A micro air pump is fixed on the middle of the upper surface of the transverse plate, and a connecting pipe is mounted at the joint of the micro air pump and the air pipe. According to the invention, the accuracy of adjusting the calibration projection position of the projector is improved, and the projector is adsorbed on a desktop through negative pressure, thereby facilitating the improvement of the fixing stability of the projector.

Description

technical field [0001] The invention relates to the technical field of projection equipment, in particular to a projector that is easy to calibrate the projection position and has good stability. 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. Projectors are currently widely used in homes, offices, schools, and entertainment venues. According to different working methods, there are different types such as CRT, LCD, and DLP. At the same time, projector installation methods can be divided into desktop front projection, ceiling front projection, and desktop rear projection. Projection, ceiling rear projection, among projectors, a projector weighing less than 2 kg is generally defined as a business portable projector. This weight is comparable to that of a th...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a projector that is easy to calibrate the projection position and has good stability, which solves the problem that the existing commercial portable projectors on the market often cause problems caused by the unevenness of the desktop or the ground when they are in use. Unstable placement can easily cause the projection screen to tilt, or even cause the projector to vibrate during operation, which in turn leads to an unstable picture, which can easily affect the viewing experience of the observer

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