CN201495598U - 一种排水管逆止阀 - Google Patents

一种排水管逆止阀 Download PDF

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Publication number
CN201495598U
CN201495598U CN2009203068848U CN200920306884U CN201495598U CN 201495598 U CN201495598 U CN 201495598U CN 2009203068848 U CN2009203068848 U CN 2009203068848U CN 200920306884 U CN200920306884 U CN 200920306884U CN 201495598 U CN201495598 U CN 201495598U
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valve
valve piece
drain pipe
valve body
water flow
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姜仁义
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Shen Kan Qinhuangdao General Engineering Design and Research Institute Corp of MCC
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Abstract

本实用新型公开了一种排水管逆止阀,它主要由阀片、轴、阀片座、阀体等组成。阀片能绕轴转动,排水管内水流、气流顺向流动时可冲起阀片,使水流、气流通过阀体;逆向时,阀片凸起的边缘紧压阀体,可阻止水流、气流通过。本排水管逆止阀的阀片、轴、阀片座、阀体可分体制造,靠自重或弹力启闭,制造安装简单,启闭可靠,可代替目前排水系统中常用的存水弯,防止排水管中的水流、气体进入室内。

Description

一种排水管逆止阀
技术领域
本实用新型涉及一种排水管逆止阀。
背景技术
在目前民用建筑排水系统中,一般采用存水弯内存留的水阻止排水管内的气流进入室内,当高层住户放水时,主排水管内的气流常常冲破低层住户存水弯内存留的水而进入低层住户的室内,造成污染。
发明内容
本实用新型的目的是提供一种排水管逆止阀,它便于制造安装,能有效地阻止排水管内气流进入室内,降低污染。
为达到上述目的,本排水管逆止阀主要由阀片、轴、阀片座、阀体等组成。阀片绕轴转动,轴固定在阀片座上,阀片座固定在阀体上。阀片在绕轴转动时,因受阀体限制实现排水管内的水流、气流顺行逆止。当本阀水平安装时,靠阀片自重实现常闭,顺向的水流、气流冲启,逆向的水流、气流压紧密闭;当本阀垂直安装时,可将扭转弹簧或平面涡卷弹簧套装在轴上(或将弹簧片、丝的一端固定在阀体上,另一端固定在阀片上),靠弹簧的弹力克服阀片自重实现常闭,也可采用扭杆式轴,阀片与扭杆式轴固定在一起,阀片靠扭杆式轴的扭力(弹力)克服阀片自重实现常闭,水流、气流自上而下冲启,反之压紧密闭。
由于本排水管逆止阀的阀片、轴、阀片座、阀体可分体制造,靠自重、弹力等启闭,制造安装简单,启闭可靠,安装在住宅的排水管中,可有效防止排水管中气体进入室内,降低污染。
附图说明
图1、图2是本实用新型排水管逆止阀示意图,其中图1是图2沿II-II的剖视图,图2是图1沿I-I的剖视图。图中1为阀片座;2为轴;3为阀片;4为阀体;5为螺栓;6为连接卡;7为排水管;8为排水管内水流、气流的流向。
具体实施方式
实施方式一:一种排水管逆止阀,见图1、图2。图中阀片3的一侧可绕轴2转动,其他的边缘凸起。排水管7为水平排水管。当排水管7内无水流、气流时,阀片3靠自重下垂,本阀处于常闭状态;当排水管7内水流、气流按8所示的方向流动时,阀片3被水流、气流冲起,水流、气流通过阀体4;当排水管7内的水流、气流与8所示的方向相反时,阀片3凸起的边缘紧压阀体4,阻止水流、气流通过,实现逆止。阀片3、轴2、阀片座1、阀体4可分体制造,在现场采用螺栓5、连接卡6等与排水管7安装到一起。
实施方式二:一种排水管逆止阀,见图1、图2。图中阀片3的一侧固定在轴2上,轴2亦为扭杆式弹簧,阀片3靠轴2的扭力克服重力常闭。排水管7按8所示的方向自上而下垂直。其他同实施方式一。

Claims (1)

1.一种排水管逆止阀,其特征在于:主要由阀片(3)、轴(2)、阀片座(1)、阀体(4)等组成,阀片(3)的轴固定在阀片座(1)上,阀片座(1)固定在阀体(4)上,阀片(3)凸起的边缘压在阀体(4)上。。
CN2009203068848U 2009-07-25 2009-07-25 一种排水管逆止阀 Expired - Lifetime CN201495598U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009203068848U CN201495598U (zh) 2009-07-25 2009-07-25 一种排水管逆止阀

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CN2009203068848U CN201495598U (zh) 2009-07-25 2009-07-25 一种排水管逆止阀

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CN201495598U true CN201495598U (zh) 2010-06-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383480A (zh) * 2011-09-08 2012-03-21 鲁杨 排水管道防臭装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383480A (zh) * 2011-09-08 2012-03-21 鲁杨 排水管道防臭装置

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Address after: 066004 No. 71, Longhai Road, Qinhuangdao economic and Technological Development Zone, Hebei

Patentee after: MCC Qinhuangdao engineering design & Research Institute Co Ltd

Address before: 066004 No. 71, Longhai Road, Qinhuangdao economic and Technological Development Zone, Hebei

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