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Automatic dedusting type teaching projection curtain

A projection screen, self-dusting technology, applied in optics, chemical instruments and methods, cleaning methods and utensils, etc., can solve the problems of unfavorable teachers' teaching, easy to be contaminated with dust, affecting the projection effect of the projection screen, etc., and achieve a good projection effect. Effect

Inactive Publication Date: 2017-07-11
杜美玲
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a self-dust-cleaning projection screen for teaching, which has the advantages of automatic dust removal, etc., and solves the problem that when the screen is used for teaching, the projection screen is easily contaminated due to the large amount of dust in the classroom. A lot of dust, if it is not cleaned in time, it will easily affect the projection effect of the projection screen, which is not conducive to the teacher's lectures

Method used

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  • Automatic dedusting type teaching projection curtain
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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0022] see Figure 1-2 , the present invention provides a technical solution: a self-cleaning projection screen for teaching, including an installation frame 1, the installation frame 1 is an integrally formed structure, both sides of the inner cavity of the installation frame 1 are provided with grooves 2, and the right side is concave The first driving motor 3 is fixedly installed in the groove 2, and the output shaft of the first driving motor 3 is fixedly ...

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Abstract

The invention relates to the technical field of teaching equipment and discloses an automatic dedusting type teaching projection curtain comprising an installation frame, two sides of an inner cavity of the installation frame are provided with grooves, a first driving motor is fixedly mounted in a right groove, and a roll-up shaft is fixedly mounted on an output shaft of the first driving motor; a roll-up shaft seat positioned in a left groove is fixedly mounted on a side, positioned far away from the first driving motor, of the roll-up shaft; an inner part of the roll-up shaft is provided with a roll-up groove, and a projection curtain of which one end extends to a bottom part of the installation frame is fixedly mounted in the roll-up groove. According to the automatic dedusting type teaching projection curtain, a second driving motor is arranged, the projection curtain is fixed in a dedusting groove, a dedusting shaft is driven by the second driving motor to rotate in a dedusting cavity, a dedusting roller is enabled to drive cleaning hair brushes on cleaning cloth to rotate, automatic dedusting is realized when the projection curtain is rolled up and rolled down, and good projection effects of the projection curtain can be ensured.

Description

technical field [0001] The invention relates to the technical field of teaching equipment, in particular to a self-dust-cleaning projection screen for teaching. Background technique [0002] Projection screens are generally used in combination with projectors. Projection screens are also called projection screens. They are generally divided into commercial screens, household screens and engineering screens. There are many types of projection screens, which can be divided into high, medium and low grades. According to different uses, there are many kinds of specifications and sizes, generally divided into household use, school use and KTV use. [0003] At present, when the projection screen is used for teaching, because there is a lot of dust in the classroom, the projection screen is easy to be contaminated with a lot of dust when it is used. If it is not cleaned in time, it will easily affect the projection effect of the projection screen, which is not conducive to the teac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/58B08B1/04
CPCG03B21/58B08B1/12B08B1/32
Inventor 杜美玲
Owner 杜美玲
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