Module assembling type rolling writing board

Abstract

The invention relates to a module-assembled rolling writing board, which comprises a main body frame and flexible board surfaces of the writing board, wherein the flexible board surfaces of the writing board are wrapped outside an upper rotating shaft and a lower rotating shaft in circularity. The writing board is characterized in that the main body frame is a left upright post and a right upright post; the upper rotating shaft is hinged with the main body frame; the lower rotating shaft is matched with the main body frame in a rolling way through a connecting set; an assembled substrate consisting of at least two hard substrates is arranged between the upper rotating shaft and the lower rotating shaft and connected with the main body frame in an inserting way or a screwing way; and the writing board is formed by connecting at least two flexible board surfaces which surround a head end and a tail end outside the upper rotating shaft and the lower rotating shaft and are connected into the circularity through a connecting device, and the whole writing board has a module-assembled structure. The writing board makes larger writing equipment realize miniaturized package volume and package form applicable to transportation. The writing board has the advantages of convenient product circulation, wide usage, low cost, long service life, convenient operation, easy maintenance, and no necessary requirements on electric power. During using, air pollution of flying dust to lecturers and audiences can be avoided.

Description

technical field [0001] The invention relates to a writing demonstration device used in schools, offices, families and other environments that require writing and demonstration. It can use traditional chalk, water-based or solvent-based whiteboard markers for writing and drawing, and can also cooperate with projection equipment to play projection. function of the screen. Background technique [0002] The writing equipment currently used by people is the traditional chalk board (black board & green board) or the white board (marker board) that has been gradually promoted in recent decades. Both of them use hard substrates, which are required to form writing pens by coating or pasting the surface of the substrates. Surface characteristics, to complete the writing function. Since this kind of writing board must use a thinner thickness and a certain height and width to form the shape of the product, when it is required in the use environment, it must have a larger height and wid...

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of board are: 1. Electronic drive must be used, and the board cannot work without electricity. The board cannot be rolled and cannot be continuously written.

2. The board is only used for whiteboard writing pens, not suitable for chalk writing

3. Its board surface rolls along the horizontal direction, which is suitable for a few countries or regions to follow the vertical top-down writing habit, but not suitable for modern China, Europe, America, and most countries and nations in the world to use "horizontal line, top-down" The habit of writing "line by line"

4. Due to structural defects caused by its horizontal rolling principle, it cannot form a large-scale writing surface. It is only suitable for small offices, not suitable for large classrooms or conference halls in halls, and its application range is limited.

5. Due to the structure formed by its design principles, its price is still equivalent to dozens or hundreds of times the price of traditional writing blackboards and whiteboards. It is a noble product and cannot be widely used so far.

[0011] 1. The application is relatively complicated, and it needs professional training and practice before it can be used proficiently. There are also high requirements for product maintenance and maintenance.

2. Expensive and difficult to promote

3. The product is an electronic product and cannot work without electricity

As a result, although many creations of the predecessors are not lacking in bright spots, they cannot meet the needs of the market because such products are not suitable for transportation and circulation. There has never been such an excellent and large-scale product that has been circulated all over the world or in the whole of China.

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