自动升降黑板

Automatic lifting/lowering black-board

  • Inventors: XINWEN LIAO
  • Assignees: 廖新文
  • Publication Date: January 10, 2007
  • Publication Number: CN-2855771-Y

Abstract

本实用新型公开了一种自动升降黑板,旨在解决现有的黑板不能调节黑板高低的不足。它包括一个黑板,一个安装黑板的框架,该框架是一个固定在黑板后面的墙壁上的包括底梁、顶梁、左侧梁和右侧梁的矩形框架;在左、右侧梁的前面分别制有一条垂直于底梁的燕尾通槽;在黑板的背面与前述燕尾槽对应的位置分别固定有一条垂直于底梁的、截面与燕尾槽形状相配合的导轨,这两条导轨分别装在燕尾槽中;在顶梁的上面还装配有一套传动装置,该传动装置包括一台安装在顶梁中间位置的、可以正、反转的微型电机,该电机有左、右两个输出轴,在每个输出轴上分别对称的装有一个卷筒,卷筒上缠绕有钢丝绳,钢丝绳的一端固定在黑板的顶面,另一端固定在平衡重上。
The utility model discloses an automatic up and down blackboard, it aims to solve the shortcoming of the present blackboard that the height can not be adjusted. It comprises a black board, an framework used to mount the blackboard, the framework is a rectangular frame fixed on the wall behind the blackboard which consists of bottom beam, top beam left and right side beams; a coattail through slot which is perpendicular to bottom beam which is made in front of the left and right beams; guide rails are fixed on the back of the blackboard at the position in correspondence with the said coattail slots , the guide rails are perpendicular to the bottom beam and its section matches the coattail slot shape, the two guide rails are mounted in the coattail slot respectively; there is a set of transmission device mounted on the top beam, the transmission device comprises a micro-motor which can rotate and reverse is mounted on the middle place of the top beam, the motor has left and right two output axles, a roller drum is mounted on each output respectively, wire rope winds around the roller drum, one end of the wire rope is fixed on the top surface of the blackboard, the other end is fixed on the balance weight.

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Cited By (3)

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    CN-102789736-ANovember 21, 2012无锡商业职业技术学院Display engine pedestal used for teaching
    CN-102789736-BDecember 10, 2014无锡商业职业技术学院一种教学用展示型发动机台架
    CN-104691169-AJune 10, 2015成都格瑞思文化传播有限公司一种适用于小学教学的黑板