Multimedia classroom projector convenient to maintain

Abstract

The invention discloses a multimedia classroom projector convenient to maintain, which comprises a mounting plate and a driving box. A telescopic device is arranged in the middle of the lower side ofthe mounting plate, the telescopic device comprises a supporting rod and a telescopic rod, a connecting seat is arranged in the middle of the upper side of the driving box, a sliding cavity with an open upper end is formed in the connecting seat, the lower end of the telescopic rod is arranged in the sliding cavity, a limiting groove is formed in the lower end of the right side of the telescopic rod, a limiting cavity is formed in the connecting seat and located on the right side of the sliding cavity, a pull rod is arranged in the limiting cavity, a limiting block matched with the limiting groove is arranged at the left end of the pull rod, a return spring located in the limiting cavity is arranged outside the pull rod, a second motor is arranged in the driving box, a rotating plate is arranged at the output end of the second motor, a rotating column is arranged in the middle of the lower side of the rotating plate, and the lower end of the rotating column is connected with a projection device through a first rotating seat. The multimedia classroom projector convenient to maintain is simple in structure, convenient to use, convenient and fast to adjust, high in practicability andconvenient to maintain.

Description

technical field [0001] The invention relates to the technical field of projectors, in particular to a projector for multimedia classrooms which is easy to maintain. 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. The projector for multimedia classroom is a kind of multimedia teaching equipment. The projector for multimedia classroom can display data information better and faster, but the existing projector for multimedia classroom cannot automatically adjust the angle. When the picture projected by the projector When it deviates from the projection cloth, it is inconvenient for the u...

AI Technical Summary

Problems solved by technology

The projector for multimedia classroom is a kind of multimedia teaching equipment. The projector for multimedia classroom can display data information better and faster, but the existing projector for multimedia classroom cannot automatically adjust the angle. When the picture projected by the projector When it deviates from the projection cloth, it is not convenient for the user to adjust, which reduces the practicability of the projector

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