The invention relates to a dustless chalk eraser, which comprises a shell and a handle, wherein the shell is provided with a cavity, the cavity is provided with plate and sponge, the sponge is arranged between the bottom plate and the cavity, the cavity is provided with a water inlet side of the cavity, the lower end is provided with a plurality of through holes, the lower shell is provided with a plurality of corresponding roll felt. The upper end of the shell is provided with a push rod, the push rod is inserted into the cavity and the connection plate; one end of the handle is fixedly connected by screws and the upper end of the shell, and the other end of the handle for holding the rod; the water inlet is provided with a sealing cover; the invention adopts built-in absorbent sponge, cleaning process, water based on the blackboard so slowly, because when wiping wiping head does not produce wet chalk dust, avoid the teachers and students of the clothes, reduce air pollution, is conducive to the body In body health, the setting of the handle allows the students to wipe the top of the blackboard without having to stand on the stool to avoid the occurrence of a safety accident.
【技术实现步骤摘要】
一种无尘粉笔擦
本专利技术涉及一种教室用品,特别涉及一种无尘粉笔擦。
技术介绍
粉笔擦是用于擦去粉笔字迹的工具,也叫黑板擦,目前教师在课堂上教学时还是较多的采用粉笔书写,再用粉笔擦进行擦拭,使用粉笔擦擦拭的时候会扬起很多灰尘,这些灰尘会飞散到前排学生面前,弄脏学生和老师的衣服及课桌,影响学生们听课,而且会造成空气污染,更严重的话会影响学生和老师的身体健康,但这种状况一直得不到改善。
技术实现思路
本专利技术的目的在于提供一种无尘粉笔擦,它能有效的解决
技术介绍
中存在的问题。为实现上述目的,本专利技术提供如下技术方案:一种无尘粉笔擦,包括壳体和手柄,所述壳体内设有腔体,腔体内设有压板和吸水海绵,所述吸水海绵设于压板和腔体的下端之间,腔体的一侧设有进水口,腔体的下端设有若干通孔,对应壳体的下端设有若干滚毡,所述壳体的上端设有推杆,所述推杆伸入腔体并连接压板。作为本专利技术的进一步改进,所述手柄的一端通过螺丝与壳体上端固定连接,且所述手柄的另一端为手握杆。作为本专利技术的进一步改进,所述进水口上设有密封盖。与现有技术相比,本专利技术的有益效果是:本专利技术采用内置吸水海绵,在 ...
【技术保护点】
一种无尘粉笔擦,包括壳体(1)和手柄(2),其特征在于:所述壳体(1)内设有腔体(3),腔体(3)内设有压板(4)和吸水海绵(5),所述吸水海绵(5)设于压板(4)和腔体(3)的下端之间,腔体(3)的一侧设有进水口(6),腔体(3)的下端设有若干通孔(7),对应壳体(1)的下端设有若干滚毡(8),所述壳体(1)的上端设有推杆(9),所述推杆(9)伸入腔体(3)并连接压板(4)。
【技术特征摘要】
1.一种无尘粉笔擦,包括壳体(1)和手柄(2),其特征在于:所述壳体(1)内设有腔体(3),腔体(3)内设有压板(4)和吸水海绵(5),所述吸水海绵(5)设于压板(4)和腔体(3)的下端之间,腔体(3)的一侧设有进水口(6),腔体(3)的下端设有若干通孔(7),对应壳体(1)的下端设有若干滚毡(8),所述...
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