Projection device for teaching
A projection device and projector technology are applied in the field of teaching appliances, which can solve the problems of inconvenient movement, easy to turn over, and high requirements on ground flatness, and achieve the effect of avoiding shaking or moving.
Pending Publication Date: 2020-11-03
河南护理职业学院
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- Claims
- Application Information
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Problems solved by technology
Under the cooperation of the existing projector and the bracket, although the basic teaching requirements can be met, there are certain inconveniences in the vertical height adjustment, horizontal rotation angle adjustment, and pitch angle adjustment of the projector; in addition, In the process of use, there are still defects such as poor balance, easy to fall over, high requirements on the flatness of the ground, and inconvenient movement.
Method used
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[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] Such as Figure 1-3 As shown, a projection device for teaching includes a projector 1, an installation module compatible with the projector 1, a support module, a vertical height adjustment module, a horizontal rotation angle adjustment module, and a pitch angle adjustment module;
[0026] The installation module includes a mounting f...
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The invention provides a projection device for teaching. The projection device comprises a projector, a mounting module matched with the projector, a supporting module, a vertical height adjusting module, a horizontal rotating angle adjusting module and a pitching angle adjusting module; and the mounting module comprises a mounting frame matched with the projector, a baffle arranged at the rear end of the mounting frame, a through hole formed in the baffle and used for allowing a cable to pass through, first positioning bolts arranged at the side ends and the top of the mounting frame and usedfor fixing the projector, and fastening sleeves arranged at the ends, close to the projector, of the first positioning bolts. According to the projection device for teaching, not only can basic teaching requirements be met, but also the vertical height, the horizontal rotation angle and the pitching angle of the projector can be conveniently adjusted, and in addition, the projection device for teaching has the advantages of being good in balance, not prone to turn over, low in requirement for ground flatness and convenient to move.
Description
technical field [0001] The invention relates to the technical field of teaching appliances, in particular to a projection device for teaching. Background technique [0002] A projector is an optical instrument that uses optical elements to magnify the outline of a workpiece and project it onto a video screen. It is also a very commonly used teaching tool. [0003] Compared with projectors suspended from the ceiling, portable projectors not only have the characteristics of being easy to move, but also have the characteristics of greatly increasing the frequency of use. Because in the teaching process, not all the teaching content needs to use the projector, therefore, there is no doubt that there is a waste of resources when the projector is fixedly suspended in a certain classroom, especially for some teaching This is especially true for schools where the resource of the projection device in the appliance is relatively tight. However, portable projectors can greatly reduce...
Claims
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IPC IPC(8): F16M11/04F16M11/12F16M11/16F16M11/18F16M11/28F16M11/42G03B21/54G09B5/02
CPCF16M11/046F16M11/12F16M11/16F16M11/18F16M11/28F16M11/42G03B21/54G09B5/02
Inventor 陈方马素婷陈旭
Owner 河南护理职业学院