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A multimedia projection device for teaching

A projection device and multimedia technology, applied in the field of multimedia projection, can solve the problems of manual dust removal and the inability to freely adjust the projection direction, etc., and achieve the effects of improving accuracy, saving equipment maintenance costs, and improving adaptability

Active Publication Date: 2021-08-27
南京卡索系统工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings in the prior art that the projection direction cannot be freely adjusted and regular manual dust removal is required, and a multimedia projection device for teaching is proposed

Method used

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  • A multimedia projection device for teaching
  • A multimedia projection device for teaching
  • A multimedia projection device for teaching

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Embodiment Construction

[0023] 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.

[0024] refer to Figure 1-7 , a multimedia projection device for teaching, comprising a fixed seat 1, the bottom end of the fixed seat 1 is rotatably connected with an electric lifting rod 2, the electric lifting rod 2 can adjust the height of the projector 3, and the electric lifting rod 2 passes through the fixed seat 1 enters the inside of the fixed seat 1, the output end of the electric lifting rod 2 is rotatably connected to the first base 4, the bottom end of the first base 4 is fixedly connected to the projector 3, and the upper end of the projector 3 is fixedly connected to the second Base 8, the upper end of the second base 8 is rotatably connected with a fi...

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Abstract

The invention discloses a multimedia projection device for teaching, which comprises a fixed seat, the bottom end of which is rotatably connected with an electric lifting rod, and the electric lifting rod passes through the bottom end of the fixed seat and enters the interior of the fixed seat, The output end of the electric lifting rod is rotatably connected to the first base. In the present invention, the transmission device drives the dust-removing brush to move on the dust-proof plate to clean the dust on the dust-proof plate. At the same time, the second fixed rope drives the dust-removing fan to rotate to further clean up the dust accumulated on the dust-removing plate to achieve the effect of automatic dust removal. When installing the projector on the top of the room, when encountering a sloping top, you can first adjust the height of the projector through the electric lifting rod, then turn the second threaded rod to fine-tune the horizontal direction of the projector, and finally turn the first threaded rod to fine-tune the projector's height In the vertical direction, the light source of the projector is accurately aligned with the light curtain, which increases the adaptability of the projector to the installation environment, and can be installed on walls with different angles.

Description

technical field [0001] The invention relates to the technical field of multimedia projection, in particular to a multimedia projection device for teaching. Background technique [0002] Multimedia projection devices generally refer to multimedia projectors, which enlarge and output video images by connecting to computers or other equipment, so they are used in many occasions and in various fields, especially in related education and training. a piece of equipment. [0003] At present, the direction and angle of the projectors on the market cannot be adjusted freely, so there are certain requirements for the installation environment, which limits the promotion and use of the projectors. Since the projector is equipped with a heat dissipation device, the interior of the projector is ventilated. This will cause dust to enter the interior of the projector, and the accumulated dust will have a certain impact on the projection equipment, so regular manual dust removal is required...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/16G03B21/54F16M13/02F16M11/28F16M11/20F16M11/18F16M11/10B08B5/04B08B5/02B08B1/00
CPCB08B1/00B08B5/02B08B5/04F16M11/10F16M11/18F16M11/2014F16M11/28F16M13/02G03B21/16G03B21/54
Inventor 施雯斐
Owner 南京卡索系统工程有限公司
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