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发明名称
下水道堵臭阀
摘要
一种下水道用堵臭阀,它可以用于厕所,及其它下水道,防止臭味从下水管中扩散出来,它的启闭是全自动的。圆环(1)用于卡在便池下水道口处,在圆环的下部连接着圆柱面状的侧壁(7),在侧壁上带有若干个向圆柱面内部隆起的隆起区(4),侧壁和隆起区均由弹性材料制成。该隆起区使侧壁的下端成为一个自动封闭阀,由于直接利用材料本身的弹性来闭合封闭阀,因而结构简单,封闭严,耐用,造价低,实用性强。
申请公布号
CN2067296U
申请公布日期
1990.12.12
申请号
CN90206182.8
申请日期
1990.05.14
申请人
宋士宁
发明人
宋士宁
分类号
E03C1/28
主分类号
E03C1/28
代理机构
代理人
主权项
1、一种下水道堵臭阀,其特征是在圆环(1,2,3)的下部连接着圆柱面状的侧壁(7,8,9),在侧壁上带有若干个向圆柱面内部隆起的隆起区(4,5,6),侧壁和隆起区均由弹性材料制成,该隆起区将圆柱形的侧壁(7,8,9)收缩在一起,侧壁的下端形成一个封闭阀。
地址
100010北京市朝阳门内东水井6号
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