一种环幕式的投影装置

Abstract

本实用新型公开了一种环幕式的投影装置，包括：支撑机构，包括弧形锥坡导轨，所述弧形锥坡导轨通过可调组件与刚性结构连接实现高度调整，所述弧形锥坡导轨底部固定安装有导向板，所述导向板内部开设有导向槽；移动机构，包括位于弧形锥坡导轨外侧的框架，以及固定安装于框架底部的投影机，所述框架顶部开口处均设有斜板，所述斜板对应弧形锥坡导轨的顶部转动设置有滚轮，所述投影机通过定位组件与支撑机构中导向板连接实现位置锁定。本实用新型通过设置的支撑机构和移动机构，该机构能够消除了黑边和漏光现象，确保了画面整体性与视觉质量，同时增强了装置对不同应用环境的适应性。

Claims

1. A panoramic projection device, characterized in that, include: The support mechanism (1) includes an arc-shaped conical slope guide rail (101), the arc-shaped conical slope guide rail (101) is connected to a rigid structure through an adjustable component to achieve height adjustment, and a guide plate (106) is fixedly installed at the bottom of the arc-shaped conical slope guide rail (101), and a guide groove (107) is opened inside the guide plate (106); The moving mechanism (2) includes a frame (201) located outside the arc-shaped conical slope guide rail (101) and a projector (209) fixedly installed at the bottom of the frame (201). The top opening of the frame (201) is provided with a sloping plate (202). The sloping plate (202) is rotatably provided with a roller (203) corresponding to the top of the arc-shaped conical slope guide rail (101). The projector (209) is connected to the guide plate (106) in the support mechanism (1) through a positioning component to achieve position locking. The light-blocking mechanism (3) includes a T-shaped positioning rod (301) symmetrically threaded to the front end of the projector (209) and a rotating seat (302) symmetrically fixed to the left and right sides of the projector (209). A curtain (303) is placed on the outside of the T-shaped positioning rod (301). A synchronization rod (304) is fixedly installed between the two curtains (303). A push-pull rod (305) is rotatably installed between the synchronization rod (304) and the two rotating seats (302).

2. An apparatus as claimed in claim 1, wherein The adjustable component includes a threaded cylinder (102) fixed to the top of the arc-shaped conical guide rail (101) and a screw (104) movable on the top of the threaded cylinder (102). A knob (103) is rotatably provided on the top of the threaded cylinder (102). The screw (104) is threadedly driven inside the knob (103). A mounting base (105) is fixedly provided on the top of the screw (104) and fixedly installed with a rigid structure.

3. A projection apparatus as claimed in claim 1, wherein The roller (203) rolls against the surface of the arc-shaped conical guide rail (101).

4. A projection apparatus according to claim 1, wherein The positioning component includes a T-shaped pressure bar (204) movable outside the frame (201). The T-shaped pressure bar (204) passes through the interior of the guide groove (107). A pressure plate (205) is fixedly provided at the end of the T-shaped pressure bar (204). An anti-slip pad (206) is symmetrically fixedly provided at one end of the pressure plate (205) corresponding to the guide plate (106). A limit ring (207) is fixedly provided on the outside of the T-shaped pressure bar (204). A spring (208) is fixedly installed between the limit ring (207) and the frame (201).

5. An apparatus as claimed in claim 4, wherein the projection screen is a cylindrical screen. The spring (208) is located outside the T-shaped pressure bar (204).

6. A projection apparatus as recited in claim 1, wherein The curtain (303) is a retractable structure and is made of flexible light-blocking material. One end of the curtain (303) is fixed to the projector (209).

7. A projection apparatus as claimed in claim 1, wherein The connection between the two push-pull rods (305) is rotatable and is a foldable V-shaped mechanism.

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