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Preventive maintenance turnover mechanism

A flipping mechanism and front maintenance technology, applied in optics, instruments, projection devices, etc., can solve the problems of unrealizable, heavy quality, etc., and achieve the effect of ensuring reliability and stability, and simple structure

Active Publication Date: 2013-03-20
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the front and rear covers of the car are thinner and lighter in weight, so it is relatively simple to implement.
However, for objects with heavy weight and high strength, it is impossible to achieve them with the existing hinged structure.
At the same time, ordinary cars do not need to consider the optical path problem when using this hinged structure, as long as the car cover can be pulled up, this hinged structure cannot be used for rear projection boxes that require an optical path

Method used

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Examples

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Embodiment Construction

[0026] The invention will be further explained below by specific examples.

[0027] Such as figure 1 , 2 As shown, a front maintenance turnover mechanism includes a box body 1, a screen assembly 2, a four-bar mechanism hinge 3, a free positioning type sliding brace 4 and an adjustment mechanism 5, and the upper end of the screen assembly 2 is hinged on the On the upper end of the box body 1, free positioning sliding stays 4 are set on both sides of the screen assembly 2 for supporting and positioning the screen assembly 2, and the adjustment mechanism 5 is set on both sides of the box body 1 for fine adjustment of the screen assembly 2 .

[0028] Such as image 3 As shown, the four-bar mechanism hinge 3 includes a hinge mechanism fixing plate 31, a first hinge mechanism bracket 32, a second hinge mechanism bracket 33, a hinge rotating plate 34, a hinge pin 35 and a collar 36,

[0029] Described four-bar mechanism hinge 3 is installed on the box body 1 by hinge mechanism fi...

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Abstract

The invention discloses a preventive maintenance turnover mechanism which comprises a box, a screen assembly, four rod mechanism hinges, free positioning type slide supports and adjusting mechanisms. The screen assembly is hinged to the box through the four rod mechanism hinges, the free positioning type slide supports are arranged at two side edges of the screen assembly and used for supporting and positioning the screen assembly, and the adjusting mechanisms are arranged at two side edges of the box and used for achieving fine adjustment of the screen assembly. The four rod mechanism hinges are connected with the box and the screen assembly so that labor saving and smoothness during screen assembly turnover are guaranteed, the free positioning type slide supports support the screen assembly, the adjusting mechanisms perform fine adjustment to the preventive maintenance turnover mechanism so that reliability and stability of the preventive maintenance turnover mechanism are guaranteed, and simultaneously, the preventive maintenance turnover mechanism is simple in structure.

Description

technical field [0001] The invention belongs to the technical field of rear projection display, and in particular relates to a front maintenance turning mechanism. Background technique [0002] At present, when performing front maintenance on the rear projection box, it is generally necessary to remove the screen from the front, or pull it out and turn it over, or pull it out and slide it left or right. This implementation method has a complex structure and is not stable enough. At present, the opening of the front and rear covers of automobiles is to connect the front and rear covers and the body through a hinge structure. Through this hinge, the user is more stable and reliable when opening the front and rear covers of the car. [0003] But the front and rear covers of the car are thinner and lighter in weight, so it is relatively simple to implement. However, for objects with heavy weight and high strength, it cannot be realized by using the existing hinged structure. A...

Claims

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Application Information

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IPC IPC(8): G03B21/56G03B21/54F16C11/04
Inventor 唐洪陈智清张海燕
Owner GUANGDONG VTRON TECH CO LTD
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