Novel three-side-reversible blackboard

A flip-up blackboard technology, which is applied in the field of teaching equipment, can solve the problems of limited blackboard use area, dust harmful to human body, manual wiping, etc., to reduce dust, increase labor intensity, and avoid injuries.

Inactive Publication Date: 2014-03-12
ANHUI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of three-sided overturned blackboard to solve the problems that the existing blackboard has limited use area, and needs manual wiping, which is time-consuming and laborious, and the dust is harmful to the human body.

Method used

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  • Novel three-side-reversible blackboard
  • Novel three-side-reversible blackboard
  • Novel three-side-reversible blackboard

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] The invention provides a three-side flip-type blackboard, the structure of which can be found in figure 1 , figure 2 and image 3 , including a stepper motor and a stepper motor controller, the No. 1 stepper motor controller 2 controls the rotation of the No. 1 stepper motor 1, the output shaft of the No. 1 stepper motor 1 controls the crossbar 3, and the crossbar 3 controls each blackboard strip 8 The rotating shaft 4 realizes its synchronous rotation, and the lower end of the blackboard strip 8 is connected with the base plate 9 through the bearing 10; the No. 2 stepper motor controller 12 is installed on the No. 2 stepper motor 11, and the output shaft is connected with the driving wheel 13 , connect the driven rotating wheel 18 by the belt 14, one end of the fork 17 is connected with the driven rotating wheel 18, and one end sli...

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Abstract

The invention discloses a three-side-reversible blackboard, which comprises a plurality of blackboard strips arranged in parallel along a vertical direction. Different stepping motors are controlled via corresponding stepping motor controllers, so that synchronous reversion of the backboard strips can be realized, three faces of the blackboard can be used for writing, and the effective use area of the blackboard is increased; moreover, a wiping block which can be used for automatically wiping and is provided with a dust absorbing device is arranged on the back side of the blackboard and is driven by using one corresponding stepping motor, and the two ends of the blackboard wiping block are clamped in vertical sliding chutes of side plates on both sides and can move up and down, so that writing on the backboard which is reversed to the back side can be wiped automatically, the phenomenon of dust raising is avoided, and the problems of waste of time and labor, high labor intensity, damages of dust to human bodies and the like existing in the conventional blackboard which needs manual wiping are solved.

Description

technical field [0001] The invention belongs to the technical field of teaching appliances, and in particular relates to a novel three-sided overturned blackboard. Background technique [0002] At present, ordinary blackboards widely used in schools have a limited use area and need to be manually wiped frequently before they can continue to be used. This not only wastes precious time for teachers, but also increases labor intensity. Moreover, when manually wiping, the dust will cause certain damage to human skin. harm. Contents of the invention [0003] The purpose of the present invention is to provide a new type of three-side flip-up blackboard to solve the problems of limited use area of ​​existing blackboards, manual wiping, time-consuming and labor-intensive, and harmful dust to human body. [0004] The technical solution adopted in the present invention is a new type of three-sided overturned blackboard, which is characterized in that it includes a stepping motor an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04
Inventor 徐曼曼李学明李煜谢赛南徐海洋董长帅
Owner ANHUI UNIV OF SCI & TECH
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