Chalk-assisted writing device

Abstract

The invention discloses a chalk-assisted writing device, and is applied to the field of stationery. The chalk-assisted writing device comprises a chalk holder part, a chalk container part and a propulsion part; the chalk holder part and the pen container part are fixedly connected; the propulsion part and the pen container part are detachably connected. The chalk-assisted writing device disclosedby the invention can as a whole realize that 1, chalk is not in direct contact with hands; 2, chalk dust is collected and cleared synchronously during chalk writing; 3, a rational angle is kept between chalk and the chalk holder part, thus being in favor of improving the comfort level and practicability; and 4, by combining with a circular truncated cone-shaped structure small in front part and large in rear part of the chalk, the chalk is electrically pushed out evenly, and stability of the chalk during writing is guaranteed.

Description

technical field [0001] The invention belongs to the field of stationery and educational supplies, and in particular relates to a chalk auxiliary writing device. Background technique [0002] Although electronic classrooms and electronic blackboards are gradually popularized in the education field, for most of the teaching classrooms in my country, the teaching work is still completed in the form of teachers using chalk to write on the blackboard. Teachers have been holding chalk for a long time to write. After a class, the fingers will be crowded with a thick layer of chalk dust, which is very unhygienic and needs to be cleaned repeatedly after each class. In addition, when writing on the blackboard in class, chalk dust will fly everywhere. Over the years, teachers will inevitably inhale a large amount of chalk dust into their bodies, which is not good for their health. At the same time, the teaching environment is not clean enough. [0003] Patent CN104175750 B multifuncti...

AI Technical Summary

Problems solved by technology

Teachers have been holding chalk for a long time to write. After a class, the fingers will be crowded with a thick layer of chalk dust, which is very unhygienic and needs to be cleaned repeatedly after each class.

In addition, when writing on the blackboard in class, chalk dust will fly everywhere. Over the years, teachers will inevitably inhale a large amount of chalk dust into their bodies, which is not good for their health. At the same time, the teaching environment is not clean enough

[0003] Patent CN104175750 B multifunctional pneumatic chalk pen discloses a scheme that can solve the problem that chalk is directly in contact with fingers. However, there are two problems to be further optimized in its structure: 1. It adopts the mode of propelling chalk by an air bag, The accuracy of this way of pushing the chalk is uncontrollable, that is, the chalk cannot be evenly pushed out after the front end of the chalk is consumed; 2. The chalk is set completely parallel to the pen holder, but in the actual use process, it is not difficult to imagine that it is difficult for the teacher to hold the pen holder. Touching the chalk to the blackboard to complete the writing assignment, the actual operability is low

[0004] In addition, in the prior art, there is also a structure in which a vacuum cleaner is separately arranged around the blackboard to absorb a large amount of dust falling from chalk writing. However, this method changes the structure of the blackboard greatly, and the cost is high. Yes, not very targeted

Images