Projector capable of being lifted and lowered

Abstract

The invention discloses a projector capable of being lifted and lowered. The projector includes a fixed base. The fixed base is of a rectangular parallelepiped structure. A telescopic sleeve is arranged at the center of the top of the fixed base, a vertically arranged elastic spring is arranged at the inner bottom of the telescopic sleeve, a telescopic column is connected on the top of the elasticspring, and positioning holes are formed in the outer wall of the telescopic column at equal distances along the length direction of the telescopic column. A first pull bolt horizontally penetrates through the outer wall of the telescopic sleeve, and one end of the first pull bolt penetrates through the outer wall of the telescopic sleeve and extends into the positioning holes in the telescopic column. A user can lift and lower the projector, and the height of the projector can be adjusted according to actual needs. Through a rotating shaft, a fixing plate, a second pull bolt, a second tension spring and limiting holes, the projector can be rotated to adjust the angle and fixed. The structure is simple, the problem of inconvenient adjustment of height and angle of conventional projectorsis solved, and the projector is convenient to use, has great practicability and is easy to popularize.

Description

technical field [0001] The invention relates to the technical field of projectors, in particular to a liftable projector. 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. Many existing portable projectors are more convenient to carry, but the projector itself needs to be placed during use, and the height of the projector needs to be adjusted to make the projection effect better. The general projector only relies on a table, etc. The height is determined by the supported items. This method is too restrictive and inconvenient to use. Therefore, we designed a liftable projector...

AI Technical Summary

Problems solved by technology

Many existing portable projectors are more convenient to carry, but the projector itself needs to be placed during use, and the height of the projector needs to be adjusted to make the projection effect better. The general projector only relies on a table, etc. The height is determined by the supported items. This method is too restrictive and inconvenient to use. Therefore, we have designed a liftable projector to solve the above problems.

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