Teaching blackboard capable of automatically rising and falling

An automatic lifting and automatic blackboard eraser technology, applied in the field of teaching, can solve the problems that teachers are not very comfortable and the blackboard utilization area is not high, and achieve the effect of increasing the effective use area, simple structure and convenient operation

Inactive Publication Date: 2018-05-29
沈艳
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of society, the profession of teachers is valued more and more by the society, and is known as the engineer of the soul. At the same time, teachers are effectively guaranteed in all aspects, but there are still many inconveniences in the classroom teaching process, which brings teachers troubles, such as chalk dust, standing for a long time, etc. Another problem is the height of the blackboard. Teachers are not very comfortable in the process of writing teaching. The utilization area of ​​the blackboard is not high, so a blackboard that can move up and down is needed. Effectively reduce labor intensity and increase the utilization area of ​​the blackboard

Method used

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  • Teaching blackboard capable of automatically rising and falling
  • Teaching blackboard capable of automatically rising and falling
  • Teaching blackboard capable of automatically rising and falling

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Embodiment Construction

[0021] The present invention is specifically described below in conjunction with accompanying drawing, as Figure 1-5 An automatic lifting teaching blackboard, comprising a blackboard outer frame 1, the blackboard outer frame 1 is fixedly installed on the wall, and the blackboard outer frame 1 is provided with a fixed installation device, and the fixed installation device is fixed on the blackboard The four circular openings 2 around the outer frame 1 and the self-tapping screws 3 fixedly installed in the four circular openings 2 are jointly formed, and the blackboard outer frame 1 is provided with an upper blackboard 4 and a lower blackboard sequentially from top to bottom 5. The two sides of the blackboard outer frame 1 are provided with a chain transmission device, and the chain transmission device is composed of the guide rails 6 fixedly installed on both sides of the blackboard outer frame 1, and the lower rails fixedly installed on the opposite sides of the lower blackboa...

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Abstract

The invention discloses a teaching blackboard capable of automatically rising and falling. The teaching blackboard capable of automatically rising and falling comprises a blackboard outer framework which is fixedly installed on a wall; a fixed installing device is arranged in the blackboard outer framework; the blackboard outer framework is sequentially provided with an upper blackboard body and alower blackboard body from top to bottom; the two sides of the blackboard outer framework are provided with a chain transmission device; two limiting switches are fixedly installed at the positions,located at the two ends of the blackboard outer framework, above the blackboard outer framework; the upper blackboard body and the lower blackboard body are each internally provided with an automaticblackboard eraser device; an ash collecting groove is formed below the blackboard outer framework; a controller is arranged below the blackboard outer framework; and the controller is electrically connected with the chain transmission device and the automatic blackboard eraser devices. The teaching blackboard capable of automatically rising and falling has the beneficial effects of being simple instructure and high in practicability.

Description

technical field [0001] The invention relates to the field related to teaching, in particular to a teaching blackboard that can be automatically raised and lowered. Background technique [0002] With the development of society, the profession of teachers is valued more and more by the society, and is known as the engineer of the soul. At the same time, teachers are effectively guaranteed in all aspects, but there are still many inconveniences in the classroom teaching process, which brings teachers troubles, such as chalk dust, standing for a long time, etc. Another problem is the height of the blackboard. Teachers are not very comfortable in the process of writing teaching. The utilization area of ​​the blackboard is not high, so a blackboard that can move up and down is needed. Effectively reduce labor intensity and increase the utilization area of ​​the blackboard. Contents of the invention [0003] The purpose of the present invention is in order to solve the above-men...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04B43L21/02A47B97/04
CPCB43L1/04A47B97/04B43L21/02
Inventor 沈艳
Owner 沈艳
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