Convenient sanitary chalk cover

Abstract

The invention relates to a convenient sanitary chalk cover which comprises a chalk cover body, a chalk clamp for clamping a chalk, a sliding assembly for placing the chalk into the chalk cover body, and a laser assembly. The chalk cover body is in a cylindrical shape; an opening is formed in the head part of the chalk cover body; the laser assembly is arranged at the tail part of the chalk cover body; the chalk clamp is located in the chalk cover body and comprises a fixing sleeve for fixing the chalk, a clamping iron sheet, a clamping iron sheet fixing seat and a chalk clamp switch; the clamping iron sheet fixing seat is fixed onto an annular connecting piece; the chalk clamp switch is pressed down, a wedge-shaped head opens an opening of the fixing sleeve, and one end of the chalk is clamped into the fixing sleeve from the head part of the chalk sleeve body; through backwards sliding a sliding piece, a lug of the sliding piece enables the back end of the clamping iron sheet to be separated from sawteeth, and then the clamping iron sheet fixing seat and the fixing sleeve are driven to move backwards, so that the chalk is loaded into the chalk sleeve body. According to the convenient sanitary chalk cover provided by the invention, the chalk can be placed into the chalk sleeve and is then used.

Description

technical field [0001] The invention relates to a convenient sanitary chalk case. Background technique [0002] When a teacher takes chalk, the chalk will cause damage to the skin of the teacher's hands, which is undoubtedly very painful for teachers who have been in contact with chalk all year round. The waste situation of chalk during class is serious, and the utilization rate of chalk tip needs to be improved. In recent years, with the increasing use frequency of multimedia technology in the classroom year by year, laser pointers have also entered the classroom. Laser pointers have replaced the wooden sticks used in traditional classrooms. They can be convenient and quick to focus on the blackboard. Contents of the invention [0003] In order to solve the damage to teachers caused by frequent skin contact with chalk when teachers use chalk, the invention provides a convenient and hygienic chalk case, which can realize the function of putting chalk into the chalk case a...

AI Technical Summary

Problems solved by technology

[0002] When the teacher holds the chalk, the chalk will cause damage to the skin of the teacher's hands, which is undoubtedly very painful for teachers who have been in contact with chalk all year round

The waste of chalk in class is serious, and the utilization rate of chalk tips needs to be improved

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