CN102926453B - 防倒灌的窨井盖 - Google Patents

防倒灌的窨井盖 Download PDF

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CN102926453B
CN102926453B CN201210503828.XA CN201210503828A CN102926453B CN 102926453 B CN102926453 B CN 102926453B CN 201210503828 A CN201210503828 A CN 201210503828A CN 102926453 B CN102926453 B CN 102926453B
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CN102926453A (zh
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张若玮
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Fu Zhi
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Abstract

本发明提供一种防倒灌的窨井盖,它在城市排水管网中的下水管道水位上升至窨井盖倒灌时,其自闭装置会自行关闭,阻止污水外溢;反之,它又会自行开启,继续行使其排水职能。防倒灌的窨井盖的特征是:窨井总成的背面铰链着自闭装置,即自闭装置经轴铰链在窨井总成中的弧形槽中,轴固定在自闭装置中顶板的轴孔中。所述的窨井总成,窨井盖嵌在窨井架正面的槽内,窨井架的背面设有一对连接板,连接板上设有弧形槽,窨井架背面排水入口周围设有密封圈;所述的自闭装置,顶板背面设有加强筋,小浮筒、大浮筒固定在顶板的背面中,其中小浮筒设在顶板铰链处的前端,大浮筒设在顶板铰链处的后端。

Description

防倒灌的窨井盖
技术领域
本发明涉及一种城市排水管网的窨井盖。
背景技术
窨井盖在城镇的大街小巷随处可见,它通过城市排水管网的下水管道排除各种生活污水、工业废水和城市降雨径流的混合水。
由于现有窨井盖缺乏防倒灌功能,位于城市低洼地段的窨井盖往往会出现倒灌现象,而倒灌出来的城市径流污水是雨雪淋洗城市大气污染物和冲洗建筑物、地面、废渣、垃圾而形成的,这种污水具有季节变化和成分复杂的特点,在降雨初期所含污染物甚至会高出生活污水多倍,对周围的人民生活带来严重影响,完全有整改的必要。
发明内容
针对上述的不足,本发明提供一种防倒灌的窨井盖,它在城市排水管网中的下水管道水位上升至窨井盖倒灌时,其自闭装置会自行关闭,阻止污水外溢;反之,在城市排水管网中的下水管道水位下降至窨井盖不倒灌时,其自闭装置又会自行开启,继续行使其排水职能。
本发明是这样实现的:防倒灌的窨井盖它包括窨井总成、自闭装置,其特征是:窨井总成的背面铰链着自闭装置,即自闭装置经轴铰链在窨井总成中的弧形槽中,轴固定在自闭装置中顶板的轴孔中。
所述的窨井总成,窨井盖嵌在窨井架正面的槽内,窨井架的背面设有一对连接板,连接板上设有弧形槽,窨井架背面排水入口周围设有密封圈;
所述的自闭装置,顶板背面设有加强筋,小浮筒、大浮筒固定在顶板的背面中,其中小浮筒设在顶板铰链处的前端,大浮筒设在顶板铰链处的后端。
另外,小浮筒、大浮筒能合并成一个浮筒。
本发明的作用是:
⑴.它在城市排水管网中的下水管道水位上升至窨井盖倒灌时,该窨井盖中的自闭装置会封闭其排水入口,阻止污水外溢。
⑵.它在城市排水管网中的下水管道水位下降至窨井盖不倒灌时,该窨井盖中的自闭装置会复原,其排水入口重新畅通。
⑶.其窨井总成与自闭装置的活动式铰链结构,能防止由于污垢和锈蚀等因素的长期影响,使普通铰链失效。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明防倒灌的窨井盖的正示意图。
图2是本发明防倒灌的窨井盖的侧示意图。
图3是本发明防倒灌的窨井盖的俯示意图。
图中:1.弧形槽, 2.顶板, 3.大浮筒, 4.密封圈, 5.轴, 6.小浮筒, 
7.加强筋, 8.窨井架, 9.窨井盖。
具体实施方式
如图所示,窨井总成中的窨井盖9嵌在窨井架8正面的槽内,窨井架8的背面设有一对连接板,连接板上设有弧形槽1,窨井架8背面排水入口周围设有密封圈4。
自闭装置中的顶板2背面设有加强筋,小浮筒6、大浮筒3固定在顶板2的背面中,其中小浮筒6设在顶板2铰链处的前端,大浮筒3设在顶板2铰链处的后端,同时,小浮筒6、大浮筒3能合并成一个浮筒。
轴5固定在自闭装置中顶板2的轴孔中,轴5的两端嵌在窨井架8连接板上的弧形槽1中,这样,自闭装置就铰链在窨井总成的背面了。
其工作过程是:它在城市排水管网中的下水管道水位上升至窨井盖倒灌时,在大浮筒3浮力作用下,顶板2上转;在小浮筒6作用下,顶板2上升;使顶板2顶住密封圈4封闭其排水入口,阻止污水外溢。反之,它在城市排水管网中的下水管道水位下降至窨井盖不倒灌时,该窨井盖自闭装置中浮筒的浮力消失,顶板在重力作用下复原,其排水入口重新畅通。
本发明的结构并不限于实施例所述形式,本领域的普通技术人员根据本发明做出的进一步拓展均落入本发明的保护范围。
本发明防倒灌的窨井盖十分适宜在低洼地段的排水系统中使用,效果相当理想。

Claims (2)

1.一种防倒灌的窨井盖,它包括窨井总成、自闭装置,其特征是:窨井总成的背面铰链着自闭装置;
所述的窨井总成,窨井盖(9)嵌在窨井架(8)正面的槽内,窨井架(8)的背面设有一对连接板,连接板上设有弧形槽(1),窨井架(8)背面排水入口周围设有密封圈(4);
所述的自闭装置,顶板(2)背面设有加强筋(7),小浮筒(6)、大浮筒(3)固定在顶板(2)的背面中,其中小浮筒(6)设在顶板(2)铰链处的前端,大浮筒(3)设在顶板(2)铰链处的后端;自闭装置经轴(5)铰链在窨井总成中的弧形槽(1)中,轴(5)固定在自闭装置中顶板(2)的轴孔中。
2.根据权利要求1所述的防倒灌的窨井盖,其特征是:小浮筒(6)、大浮筒(3)能合并成一个浮筒。
CN201210503828.XA 2012-12-02 2012-12-02 防倒灌的窨井盖 Expired - Fee Related CN102926453B (zh)

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CN102900145A (zh) * 2012-10-12 2013-01-30 张文良 户外地面强排防倒灌一体式排水井盖
CN103912022B (zh) * 2014-03-10 2016-08-31 宁波五百年物联网信息科技有限公司 一种具有二次保护功能的云井盖
CN108343468A (zh) * 2018-04-24 2018-07-31 中铁二院工程集团有限责任公司 隧道工程横穿暗河横向临时排水构造
CN114892719A (zh) * 2022-06-22 2022-08-12 山西四建集团有限公司 一种防坠落、防倒灌井盖

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