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发明名称
无尘黑板擦
摘要
无尘黑板擦是涉及黑板擦结构的改进。本实用新型就是提供一种使用黑板擦时,黑板上粉笔灰不向外扩散,使黑板擦可持久使用的无尘黑板擦。本实用新型包括壳体,其结构要点壳体顶端的转动轴外设置有滚动毛毡,与毛毡相接触的毛刷设置在壳体内的调整螺栓上;壳体侧方设置有胶塞。
申请公布号
CN201124697Y
申请公布日期
2008.10.01
申请号
CN200720184973.0
申请日期
2007.12.20
申请人
王宏庆
发明人
王宏庆
分类号
B43L21/00(2006.01)
主分类号
B43L21/00(2006.01)
代理机构
代理人
主权项
1、无尘黑板擦,包括壳体(2),其特征在于壳体(2)顶端的转动轴(6)外设置有滚动毛毡(7),与毛毡(7)相接触的毛刷(5)设置在壳体(2)内的调整螺栓(3)上;壳体(2)侧方设置有胶塞(1)。
地址
124000辽宁省盘锦市第三完全中学
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