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Rotary flexible blackboard

A blackboard and software technology, applied in the field of writing blackboards, can solve problems affecting teachers' cleanliness, inconvenient, and bulky hard blackboards

Inactive Publication Date: 2004-07-07
肖瑶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing writing blackboards for teaching use fixed-size hard blackboards and use chalk to write. Since the size of the blackboard is fixed, the writing range is limited by the size of the board. It is bulky and inconvenient; in addition, because the handwriting is wiped by hand during use, it affects the cleanliness of teachers

Method used

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  • Rotary flexible blackboard
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Experimental program
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Embodiment Construction

[0010] The present invention is further explained as follows with reference to accompanying drawing in conjunction with specific embodiment:

[0011] A software rotating blackboard is a book and board for teaching. It is a writing board installed on an aluminum alloy frame [1]. [2] and [6] are formed, and the shaft rollers [2], [6] are installed in parallel above and below the frame [1]; the two ends of the upper shaft roller [2] are respectively connected with a chain gear transmission mechanism [4] Connection, the chain gear transmission mechanism [4] is composed of a pair of gears [20], [22] connected by a chain [21], one of the gears [20] is coaxially connected with the upper shaft roller [2], and the other gear [22 ] The transfer handle [5] of the fixed blackboard on the shaft.

[0012] The two ends of the lower shaft roller [6] are installed on the shaft seat [15], and the shaft seat [15] is connected with the adjusting bolt [17] with the hanging head [16] and the handl...

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PUM

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Abstract

A rollable soft black board is composed of a frame, upper and lower rotary rollers horizontally and parallelly installed to said frame, soft black curtain rolled by said rollers, a manual chain-gear mechanism for driving said upper and lower rollers, and an automatic eraser. Its advantages are large area, and easy operation.

Description

Technical field: [0001] The invention relates to a writing blackboard for teaching, in particular to a software rotating blackboard. Background technique: [0002] Existing writing blackboards for teaching use fixed-size hard blackboards and use chalk to write. Since the size of the blackboard is fixed, the writing range is limited by the size of the board. It is bulky and inconvenient; in addition, because wiping handwriting is manually wiped during use, it affects the cleanliness of teachers. Invention content: [0003] The object of the present invention is to overcome the disadvantages of the prior art writing blackboard for teaching, and provide a handy and practical writing blackboard with enlarged board surface, which does not affect the cleanliness when writing and scrubbing. [0004] The technical solution of the present invention is a software rotating blackboard, which is a writing board installed on a rectangular frame, which is characterized in that the writi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/08B43L21/00
Inventor 肖瑶
Owner 肖瑶