Screen circumference lifting device for education platform

A lifting device and screen technology, applied in projection devices, machines/supports, optics, etc., can solve the problems of screen surface pollution or damage, single screen function, affecting use, etc., to achieve convenient and flexible storage and prevent shaking effects

Inactive Publication Date: 2021-05-28
广户联(广州)教育科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing screens for educational platforms have a single function. They only fix the screens on the brackets. They usually do not have a circumferential lifting device and cannot be stored flexibly. When the screens are unfolded for a long time, their surfaces may be polluted or damaged, which will affect normal use.

Method used

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  • Screen circumference lifting device for education platform
  • Screen circumference lifting device for education platform
  • Screen circumference lifting device for education platform

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Embodiment Construction

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] In addition, an element in the present invention is said to be "fixed" or "disposed on" another element, and it may be directly on another element or an intervening element may also exist. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for pur...

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PUM

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Abstract

The invention discloses a screen circumference lifting device for an education platform. The screen circumference lifting device comprises a box body, a first rotating shaft is rotatably arranged in the box body, a servo motor is installed at the top end of the box body, one end of the first rotating shaft extends out of a top plate of the box body and is fixedly connected with an output shaft of the servo motor, a second rotating shaft is rotatably arranged in the box body, the second rotating shaft is sleeved with a winding roller, and a flexible projection screen is arranged on the surface of the winding roller. The servo motor drives the first rotating shaft to rotate so that a transmission device can act on the second rotating shaft, the second rotating shaft drives the winding roller to rotate, when the winding roller rotates, one end of the flexible projection screen wound on the surface of the winding roller can vertically ascend or descend, so that the flexible projection screen can be conveniently and flexibly collected, and the influence on normal use of the flexible projection screen due to pollution or damage of the surface of the flexible projection screen in long-term use is avoided.

Description

technical field [0001] The invention relates to a circumferential lifting device, in particular to a screen circumferential lifting device for an educational platform. Background technique [0002] When the education platform conducts outdoor teaching work, it generally uses a movable small projection screen as a screen. [0003] However, the existing screens for educational platforms have only one function. The screens are only fixed on the brackets. They usually do not have a circumferential lifting device and cannot be stored flexibly. When the screens are unfolded for a long time, the surface may be polluted or damaged, which will affect normal use. Contents of the invention [0004] Based on the deficiencies in the prior art mentioned in the background art above, the present invention provides a screen circumference lifting device for an educational platform. [0005] The present invention overcomes the above technical problems by adopting the following technical sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16M11/04F16M11/18F16M11/22F16M11/42F16M1/00F16M7/00G03B21/58B65D25/02
CPCF16M11/045F16M11/046F16M11/18F16M11/22F16M11/42F16M1/00F16M7/00G03B21/58B65D25/02
Inventor 林福旺
Owner 广户联(广州)教育科技有限公司
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