Jacking device for adjusting projector

Abstract

The invention relates to an adjusting device, and discloses a jacking device for adjusting a projector. The jacking device is installed on a wall, and comprises an extension rod; a chute is formed in the wall; a chute fixed in the wall is formed above the extension rod; a slide block is slidingly connected into the chute; the extension rod is fixedly connected to the slide block; a support plate is slidingly connected between two side walls of the chute; the extension rod penetrates through the support plate, and is in clearance fit with the support plate; a base is arranged below the support plate, and is slidingly connected to the side wall of the chute; the base is hinged with a connecting rod; the connecting rod is hinged with a linkage rod; the linkage rod is hinged with a top block; and the top block penetrates through the support plate, and is slidingly connected to the support plate. The jacking device further comprises a push rod; the push rod is hinged with a connection rod; and the connection rod, the connecting rod and the linkage rod are connected through the same hinge. Compared with the prior art, the jacking device can enable images formed by the projector to become more coordinating through left-right movement of the slide block.

Description

technical field [0001] The invention relates to an adjusting device, in particular to a jacking device for adjusting a 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 widely used in homes, offices, schools, and entertainment venues. According to different working methods, there are different types such as CRT, LCD, and DLP. [0003] In the past, in school multimedia classrooms, projectors were installed. The projectors are generally installed on the top of the wall. A controllable telescopic rod is installed above the projector. The telescopic rod is fixedly connected to the wall. Install the curtain on the wall, the installation position of the curtain needs to be determined according to the position of the projector, but often...

AI Technical Summary

Problems solved by technology

[0003] In the past, in school multimedia classrooms, projectors were installed. The projectors are generally installed on the top of the wall. A controllable telescopic rod is installed above the projector. The telescopic rod is fixedly connected to the wall. Install the curtain on the wall, the installation position of the curtain needs to be determined according to the position of the projector, but often due to the deviation of the installation, the image projected by the projector on the curtain will be biased to one side of the curtain, and the up and down directions can be adjusted by telescopic rod adjustment, but the left and right directions of the projector cannot be adjusted, resulting in uncoordinated left and right directions of the resulting image, or distorting the image, thus affecting the quality of teaching

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