An auxiliary writing device and method for chalk blackboard writing on a vertical surface

Abstract

The invention discloses an auxiliary writing device for chalk and blackboard writing on a vertical surface and a method thereof, belonging to the field of teaching. An auxiliary writing device for writing on a chalk blackboard on a vertical surface and a method thereof, comprising a display board, a rolling bearing, a movable shaft and an annular sleeve, the outer wall of the display board is connected with a vertical column, the outer wall of the vertical column is connected with a connecting plate, and the vertical column and the connecting plate are connected with each other. There is a welding connection between the connecting plates, a fixing rod runs through the inner side of the connecting plate, and the end of the fixing rod is provided with a connecting plate, the side of the connecting plate is provided with a strip plate, and the connecting plate and the strip plate are The inner side of the strip plate is provided with a sliding rail, the inner side of the sliding rail is provided with a sliding block, and the top of the sliding block is provided with a casing, and the sliding block and the casing are welded together. The inner side of the body is provided with a spring, and the end of the spring is connected with an extrusion block; the invention facilitates the need to rotate and exchange the end of the chalk, and facilitates the storage and movement of the writing device.

Description

Technical field[0001]The present invention relates to the field of board aids, in particular, to a vertical surface of chalk sheet auxiliary writing devices and methods.Background technique[0002]The chalk board is a writing method widely used in school education. The chalk board has a lot of advantages in practical applications. It can easily view the text on the blackboard. At the same time, due to the special production of the chalk, there will be a certain extent Chalk is macked, causing a certain degree of impact on the teacher's respiratory tract, thereby needs to innovate the writing of traditional chalkboard books, and a chalk board auxiliary writing device.[0003]Afterwards, the Chinese patent authorization number is a patent of CN201910834591.5, which discloses a vertical surface of the chalk board auxiliary writing tool, including a positive rod, including a writing end and a fill end, the writing end A chalk hole is provided along the axis, the chalk hole is provided with ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that there is a certain degree of inclination in writing in the prior art, which causes the end of the chalk to be rotated and replaced, and it is inconvenient to store and move the writing device. Writing device and method thereof

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