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发明名称
防脏水气味密封下水管盖
摘要
本发明属建筑领域排水使用,既可排水又可防止脏水气味进入室内,主要技术问题如下:一、密封板两面与主体内壁光洁度在<img file="99103729.4_ab_0.GIF" wi="48" he="38" />以上。二、密封板与主体内周边空隙0.05mm左右,且边缘立面呈与半径相同弧形。密封板可绕中轴灵活转动,使用后空隙处可形成水膜,达到完全密封。三、密封板与轴转动配合。四、密封板和主体中轴孔与直径线偏差在0.04mm以内。
申请公布号
CN1266132A
申请公布日期
2000.09.13
申请号
CN99103729.4
申请日期
1999.03.05
申请人
王长瑞
发明人
王长瑞
分类号
E03F3/04
主分类号
E03F3/04
代理机构
代理人
主权项
本发明的技术特征是: 1、挡板两面与主体内壁光洁度应在<sub>7</sub>以上。
地址
154111黑龙江省鹤岗市峻德矿地测科
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