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发明名称
电动除尘黑板擦
摘要
一种教学用具,通常在擦黑板时粉尘易随呼吸进入人体危害身体健康。本发明将一交流微电机安装在带有手柄的电机壳内,伸入蜗壳内的电机轴上安装叶轮、毛刷,蜗壳内有一隔板在其上方由一通风管与储尘筒相接通。壁上设有通风孔的内有海绵滤网的储尘筒设在密封壳内,蜗壳上在隔板下方有一回风口与密封壳相通。利用毛刷擦下的粉末及粉尘随叶轮旋转产生的气流被蜗壳和密封壳控制在其内部进行反复循环并过滤的方法实现除尘的目的。
申请公布号
CN1050002A
申请公布日期
1991.03.20
申请号
CN89109225.0
申请日期
1989.12.07
申请人
赵荣阶
发明人
赵荣阶
分类号
B43L21/02
主分类号
B43L21/02
代理机构
代理人
主权项
1、一种教学用电动除尘黑板擦,有一交流微电机安装在带有手柄(8 )的电机壳(28)内,伸入窝壳(21)内的轴(3)上装有叶轮(2 4),毛刷(22),同蜗壳(21)一体的密封壳(15)内有一储尘 筒(14),其特征在于: A、所述蜗壳(21)上在紧靠近隔板(20)上方有一口由通风管 (12)与储尘筒(14)相接通, B、蜗壳(21)上在隔板(20)下方有一长方型回风口(16) 与密封壳(15)相通。
地址
221144江苏省铜山县马坡供销社照相馆
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