Projection device for accounting, economic and financial reports

Abstract

The invention provides an accounting, economic and financial report projection device, which relates to the field of projection devices. The projection device for accounting, economic and financial reports includes a base, the top of the base is fixedly connected with a first fixed sleeve, the top of the first fixed sleeve is provided with a first movable sleeve, the inside of the first movable sleeve is provided with a first movable block, and the top of the first fixed block is A movable plate is fixedly connected, and a first protective cover and a second protective cover are arranged on the top of the movable plate. The accounting, economic and financial report projection device is combined with each other through a simple structure, which can effectively control the angle adjustment of the projector in all directions, avoiding the collision of the projector caused by repeated movement of the projector when the fuselage is manually adjusted, and damage to the projector. There is also no need to look for items on the bottom in order to adjust the height, which can effectively save the time of the staff. The same simple manual adjustment of the projector angle avoids troubles for the novice who is not familiar with the operation of the projector.

Description

technical field [0001] The invention relates to the technical field of projection devices, in particular to an accounting, economic and financial report projection device. 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] Because of its audio-visual playback function, the projector is often used in various seminars, academic courses and office meeting reports. When using the projector, it needs to project video or images onto the corresponding screen. When projecting, it is necessary to adjust the projection The camera body or the focal length of the projector are used to adju...

AI Technical Summary

Problems solved by technology

[0003] Because of its audio-visual playback function, the projector is often used in various seminars, academic courses and office meeting reports. When using the projector, it needs to project video or images onto the corresponding screen. When projecting, it is necessary to adjust the projection The camera body or the focal length of the projector are used to adjust the position of the image on the screen. When adjusting the body, most of them are moving the body to adjust the left and right directions, but most of the adjustments are to place things on the projector to adjust the up and down directions. At the bottom, it is more troublesome to adjust. Adjusting the focal length of the projector generally requires professionals or users who are familiar with the projector to adjust it. Yes, for projecting more accurate images, such as economic and financial reports, it is difficult to adjust the focal length to adjust the position of the image on the screen. For hanging projectors, most projectors are direct Placed on the hanger, lacks corresponding fixing devices, and is prone to danger when manually adjusted

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