Self-adaptive projection device

Abstract

The invention discloses a self-adaptive projection device which comprises a movable mounting frame, fixing plates, a shading frame, a supporting frame, a lifting curtain and a projection mechanism. The movable mounting frame comprises a frame body, a rectangular groove formed in the outer side of the frame body, a connecting block welded to the outside of the frame body, an I-shaped sliding block arranged below the frame body, a top plate installed on the inner side of a movable sliding block, a fixed frame installed at the bottom of the I-shaped sliding block and a rotating plate arranged below the fixed frame; the fixing plates are installed on the two sides of the movable mounting frame; the shading frame comprises a bottom frame installed at the bottom of the frame body, a telescopic rod arranged below the bottom frame, a shading curtain installed on the inner side of the telescopic rod and a bottom plate welded to the bottom of the telescopic rod. According to the projection device, the movable mounting frame is arranged, so that the projection device can be placed in a corridor with a large visitor flow rate, the influence of light on projection is avoided, and the propaganda effect is greatly improved.

Description

technical field [0001] The invention relates to the technical field of projection devices, in particular to an adaptive projection device based on political and cultural propaganda. Background technique [0002] The existing application number is: CN201920646711.4 case, this case discloses an ideological and political projection teaching aid, including a hoisting board, an electric telescopic rod, a connecting board, a box body, a projector body, a micro air pump, a cooling window and a movable door panel, A bearing is fixed under the hoisting plate and is fixedly connected with the outer ring of the bearing. An electric telescopic rod is fixed inside the bearing, and a connection plate is fixed at the lower end of the electric telescopic rod. There is a box body, the box body is a cuboid cavity structure with an opening on one side, a projector body is fixed in the box body, and a micro air pump is fixedly installed on the projector body. Beneficial effects: when the proje...

AI Technical Summary

Problems solved by technology

[0004] The above two cases propose to solve the problem of heat dissipation of the projection device and the angle adjustment of the projection device. The two cases are aimed at improving the projector itself, while ignoring the use environment of the projection device. The best place for political and cultural propaganda should be It is a school corridor or a corridor with a large flow of people, but when using a projection device in the corridor, the intensity of the light will affect the projection of the projector, especially when multiple projection devices are involved in mounting at the same time.

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