CN2733122Y - Negative pressure controlled diaphragm valve - Google Patents

Negative pressure controlled diaphragm valve Download PDF

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Publication number
CN2733122Y
CN2733122Y CN 200420087666 CN200420087666U CN2733122Y CN 2733122 Y CN2733122 Y CN 2733122Y CN 200420087666 CN200420087666 CN 200420087666 CN 200420087666 U CN200420087666 U CN 200420087666U CN 2733122 Y CN2733122 Y CN 2733122Y
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China
Prior art keywords
cylinder
valve
negative pressure
bottom
diaphragm
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CN 200420087666
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Chinese (zh)
Inventor
张健
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万若(北京)环境工程技术有限公司
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Priority to CN 200420087666 priority Critical patent/CN2733122Y/en
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Publication of CN2733122Y publication Critical patent/CN2733122Y/en

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Abstract

The utility model discloses a negative pressure controlled diaphragm valve. Two interfaces on the two sides of a valve body and a negative pressure pipe are connected in series, a valve port is positioned on the middle part of the valve body, the bottom of the valve port is closed narrowly upward, the upper part of the valve port and a cylindrical negative pressure cylinder are connected, and the valve body and the negative pressure cylinder are connected in an inverse T shape. The shell of the negative pressure cylinder is composed of a cylinder bottom fixedly connected on the valve body and a cylinder body connected with the outer screws of the cylinder bottom, the side wall of the cylinder bottom is provided with an air-bleed hole communicated with atmosphere, and the upper part of the cylinder body is provided with a negative pressure import. A piston is positioned in the cylinder body, a spring is positioned on the upper part in the cylinder body, the lower part of the piston is connected with a pressing block, and the lower part of the pressing block is in circular arc shape. The center of the circular arc bottom of the pressing block and a disk-shaped diaphragm are fixedly connected, the edge of the diaphragm and the bottom of the cylinder bottom are fixed, and the middle part of the diaphragm and the valve port are mutually corresponding to each other. With negative pressure connected, the diaphragm valve is opened, and with the atmosphere connected, the utility model is closed by the reset of the spring. The utility model is suitable for a water conservation negative pressure closet.

Description

负压控制的隔膜阀 The negative pressure control diaphragm valve

(一)技术领域本实用新型涉及一种阀门,特别是用于负压便器的隔膜阀。 (A) Technical Field The present invention relates to a valve, especially a diaphragm valve for the vacuum toilet.

(二)背景技术负压便器是一种高效节水便器。 (B) Background art is a highly efficient water-saving toilet vacuum toilet. 隔膜阀是节水负压便器的关键部件之一。 Diaphragm valve member is a key negative saving toilet. 目前已有的负压控制的隔膜阀有两种,用于真空便器的界面阀和负压控制的污水阀。 At present, the two diaphragm valves of the negative pressure control, water valve interface valve for a vacuum toilet and a negative control. 用于真空便器的界面阀(中国专利号00255966.8)的主要结构特点是活塞体外套有袋状隔膜,将阀盖和活塞体相对于阀壳隔开,以防止碎纸和粪便阻塞阀门动作,但其耐污性能差,一方面污物卡住阀面引起关闭不严,另一方面,污物在袋壁上粘附,引起阻力增大。 The main structural features of the interface valve (Chinese Patent No. 00255966.8) for a vacuum toilet is bag-shaped casing has a diaphragm piston body, the bonnet and the piston relative to the valve housing spaced apart, so as to prevent shredding and feces blocking valve action, but its poor stain resistance, dirt stuck on the one hand cause the valve closed lax surface, on the other hand, the dirt adhered to the bag walls, causing the resistance increases. 另一种负压控制的污水阀(中国专利号为03210394.8),相对用于真空便器的界面阀在结构上有一些改进,但仍存在体积大,结构复杂的问题,从而增加了不可靠性。 Another water valve of the negative pressure control (Chinese Patent No. 03210394.8), relative to the vacuum interface valve of the toilet some improvements in the structure, but there are still bulky and complicated structure of the problem, thereby increasing unreliability.

(三)实用新型内容本实用新型要提供一种负压控制的隔膜阀,解决节水负压便器耐污性差、易关闭不严、体积大、结构复杂、可靠性低的问题。 (C) SUMMARY The present invention is to provide a diaphragm valve of one kind of the negative pressure control, to address water vacuum toilet stain resistance difference, easy to close loose, bulky, complex structure and low reliability.

本实用新型的技术方案:负压控制隔膜阀包括阀体和阀口上的隔膜,其特征在于:阀体两侧的两个接口与负压管道串连,阀口位于阀体中部,阀口底部向上收窄,阀口上面与圆柱形的负压缸连接,阀体与负压缸呈倒T形连接; The technical solution of the present invention: the negative pressure control valve on the diaphragm valve comprising a diaphragm and a valve port, wherein: two sides of the interface with the negative pressure valve body conduit in series, a valve port located in the central body, the bottom of the port narrowing upwardly, the valve port above the cylindrical negative pressure cylinder is connected, with the negative pressure valve cylinder has an inverted T-shaped connector;

负压缸由固定连接在阀体上的缸底和与缸底外螺纹连接的缸体组成外壳,缸底侧壁开有放气孔通大气,气缸体上部开有负压进口;缸体内置有活塞,活塞上部的空腔置有弹簧,弹簧与活塞压紧,活塞下部连接压块;压块置于缸底内的空腔内,压块下部呈圆弧形,压块圆弧形底部中心与圆盘形的隔膜固定连接,隔膜边缘与缸底底部固定,隔膜中部与阀口相对应。 Bottom of the negative pressure cylinder is fixedly connected to the valve body and connected to the cylinder bottom of the cylinder consisting of an external thread of the housing, the cylinder bottom sidewall louvres opened to atmosphere, the upper portion of the cylinder block with a negative pressure inlet opening; built-in cylinder the piston cavity has opposed upper portion of the piston a spring pressing the piston, a piston connected to a lower portion of the compact; compact bottom disposed within the cavity, a lower portion of the compact circular arc, the circular arc shaped bottom center of the compact fixedly connected to the disc-shaped separator with the bottom edge of the diaphragm fixed to the cylinder bottom, the central diaphragm and the valve port, respectively.

上述活塞边缘开有密封槽,密封槽内置有O形密封圈。 The piston seal groove opening edge of the sealing O-ring groove built.

上述活塞和压块在其中心部位由螺柱连在一起。 The piston and compact in its central portion joined by studs.

上述压块与圆盘形的隔膜由隔膜内置的螺钉连在一起。 Above the disk-shaped compact separator built together by the diaphragm screw.

本实用新型与现有技术相比,具有以下有益效果:由于仅用于负压系统,而且设计压力在-0.3ba~-0.6ba范围内,气缸的负载较小,故阀的体积小、结构简单、可靠性高;隔膜采用特殊材质的模片,抗污能力强,经久耐用。 Present invention compared with the prior art, has the following advantages: Since only a negative pressure system, and the design pressure in the range -0.3ba ~ -0.6ba, the load of the cylinder is small, so that a small volume of the valve, the structure simple, high reliability; special diaphragm materials die, dirt capacity and strong, and durable. 该隔膜阀通负压时开启,通大气时依靠弹簧复位关闭。 When the negative pressure on the diaphragm valve is turned on, the reset means of a spring closed to atmosphere.

(四)附图说明图1是本实用新型的结构示意图。 (Iv) Brief Description of Drawings FIG. 1 is a structural diagram of the present invention novel.

图中:1-阀体、2-隔膜、3-压块、4-缸底、5-连接螺柱、6-活塞、7-气缸体、8-进气口、9-弹簧、10-O形密封圈、11-A接口、12-B接口、13-放气孔、14-螺钉、15-阀口。 REFERENCE NUMERALS 1: a valve body, a diaphragm 2-, 3- compact, Bottom 4-, 5-stud connection, the piston 6-, 7- cylinder block, 8 an intake port, 9 spring, 10-O -ring, 11-A interfaces, 12-B interfaces, 13- bleed hole, 14 screws, 15 port.

(五)具体实施方式图1是负压控制隔膜阀的结构示意图。 (E) Detailed Description FIG. 1 is a schematic view of the negative pressure control diaphragm valve.

该负压控制隔膜阀包括阀体1、隔膜2、压块3、缸底4、连接螺柱5、活塞6、气缸体7、弹簧8和O形密封圈10等。 The negative pressure control valve comprises a diaphragm valve 1, diaphragm 2, the compact 3, Bottom 4, 5 connected to the stud, the piston 6, the cylinder block 7, a spring 8, and O-ring 10 or the like. 阀体1有与负压管道相连的A接口11与B接口12。 A body 1 has an interface with the negative pressure pipe 11 connected to the B interface 12. 阀口15位于阀体中部,阀口底部向上收窄,阀口上面与圆柱形的负压缸固定连接,阀体与负压缸呈倒T形连接。 Valve port 15 in the central body, the bottom upwards narrowed valve port, the cylindrical valve port above the negative pressure cylinder is fixedly connected with the negative pressure cylinder body has an inverted T-shaped connector. 负压缸由固定连接在阀体1上的缸底4和与缸底外螺纹连接的气缸体7组成外壳。 Bottom 4 and the cylinder block and the cylinder bottom outside the cylinder by a threaded connection to the negative pressure on the valve body 1 is fixedly connected to the housing 7 composition. 缸底4上开有放气孔13通大气;活塞6上开有密封槽,密封槽内置有O形密封圈10;活塞和压块3由连接螺柱5连在一起;压块3与隔膜2由隔膜内置的螺钉14连在一起;弹簧9置于气缸体7内活塞上部;隔膜2平时被有预压缩的弹簧8压在阀体1上;气缸体7上部开有负压进气口8。 Bottom 413 is opened on the air discharge through hole; seal groove open on the piston 6, the sealing O-ring groove 10 built; compact piston 3 and connected together by a stud 5; 2 and the separator 3 compact even the built-in screw 14 by the diaphragm together; spring 9 is placed on top of the piston 7 within the cylinder block; with a diaphragm 2 is usually pre-compressed spring 8 presses the valve body 1; an upper portion of the cylinder block 7 is opened a negative pressure intake port 8 .

该负压控制隔膜阀的工作原理如下所述:常态时,进气口8通大气,P腔内为大气压。 The negative pressure control diaphragm valve works as follows: the normal state, through the air intake port 8, P is the atmospheric pressure chamber. 由于缸底4开有通气孔,O腔内始终保持大气压。 Since the vent hole is opened Bottom 4, O always maintain atmospheric pressure chamber. 此时,O腔和P腔压力相等,活塞6只受弹簧9的预压缩力,隔膜2被传递在压块3(由连接螺柱5固连在活塞6上)上的压力压在阀体1上,将A口与B口隔断。 At this time, O chamber and chamber pressure P is equal to the piston 6 by the pre-compression force of the spring 9, the separator 2 is transferred on the pressure clamps 3 (a connecting stud 5 is secured on the piston 6) is pressed against the valve body 1, the A port and the B port blocked. 当进气口8通负压时,P腔内处于负压状态,与O腔的大气压有了一定的压差,活塞6在压差的作用下克服弹簧9的压力向上运动,隔膜2也被相应的拉上一段距离,此时,阀体1的A口与B口相通。 When the negative pressure through the intake port 8, P cavity under negative pressure, atmospheric pressure chamber O of a certain pressure, the piston 6 against the force of the spring 9 in the upward movement of the pressure difference, the diaphragm 2 is also one way or another a distance corresponding this time, a port and B port of the valve body 1 is connected. 活塞6运动到气缸体7的极限挡板时停止,此时隔膜2与阀体1的开口距离达到最大。 Shutter stop limit cylinder block 7 to a piston 6 is moved, this time from the opening of the diaphragm and the valve body 1 2 is maximized. 当进气口8再次通大气时,阀又处于常态,阀体1的A口与B口隔断。 When the intake port 8 through the air again, and the valve is in the normal, A port and B port of the valve body 1 is cut off.

本实用新型仅用于负压系统,设计压力在-0.3ba~-0.6ba范围内,气缸的负载较小,弹簧的工作长度在34.5mm以内,其结果是负压控制隔膜阀的体积小、结构简单、可靠性高,隔膜抗污能力强,经久耐用。 The present invention is only for negative pressure system, the design pressure in the range -0.3ba ~ -0.6ba, the load of the cylinder is small, the working length of the spring is 34.5mm or less, as a result of the small volume of the negative pressure control diaphragm valve, simple structure, high reliability, strong membrane fouling ability and durability.

Claims (4)

1.一种负压控制隔膜阀,包括阀体和阀口上的隔膜,其特征在于:阀体两侧的两个接口与负压管道串连,阀口位于阀体中部,阀口底部向上收窄,阀口上面与圆柱形的负压缸连接,阀体与负压缸呈倒T形连接;负压缸由固定连接在阀体上的缸底和与缸底外螺纹连接的缸体组成外壳,缸底侧壁开有放气孔通大气,气缸体上部开有负压进口;缸体内置有活塞,活塞上部的空腔置有弹簧,弹簧与活塞压紧,活塞下部连接压块;压块置于缸底内的空腔内,压块下部呈圆弧形,压块圆弧形底部中心与圆盘形的隔膜固定连接,隔膜边缘与缸底底部固定,隔膜中部与阀口相对应。 A negative pressure control diaphragm valve, comprising a valve body and a diaphragm on the valve port, wherein: two sides of the interface with the negative pressure valve body conduit in series, a valve port located in the central body, the bottom upwards to close the valve port narrow upper port of the cylindrical negative pressure cylinder is connected, with the negative pressure valve cylinder has an inverted T-shaped connector; Bottom by a negative pressure cylinder is fixedly connected to the valve body and connected to the cylinder bottom of the cylinder consisting of an external thread housing sidewall Bottom louvres opened to atmosphere, the upper portion of the cylinder block with a negative pressure inlet opening; built-cylinder opposed piston upper part having a cavity, a piston spring, the spring pressing the piston, a piston connected to a lower portion of the compact; pressure the cavity block is placed in the cylinder bottom, the lower portion of the compact circular arc, the circular arc-shaped compact with a center of the bottom disk-shaped diaphragm is fixedly connected to the bottom edge of the diaphragm fixed to the cylinder bottom, the central diaphragm and the valve opening corresponding to the .
2.根据权利要求1所述的负压控制隔膜阀,其特征在于:所述活塞边缘开有密封槽,密封槽内置有O形密封圈。 The negative control of the diaphragm valve of claim 1, wherein: the opening edge of the piston seal groove, a sealing O-ring groove built.
3.根据权利要求1所述的负压控制隔膜阀,其特征在于:所述活塞和压块在其中心部位由螺柱连在一起。 The negative control of the diaphragm valve of claim 1, wherein: said piston and compact in its central portion joined by studs.
4.根据权利要求1所述的负压控制隔膜阀,其特征在于:所述压块与圆盘形的隔膜由隔膜内置的螺钉连在一起。 The negative control of the diaphragm valve of claim 1, wherein: said disk-shaped compact with a separator built together by a screw separator.
CN 200420087666 2004-08-13 2004-08-13 Negative pressure controlled diaphragm valve CN2733122Y (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100462605C (en) 2007-02-13 2009-02-18 万若(北京)环境工程技术有限公司 Diaphragm type negative pressure valve used for conveying sewage water
CN101012663B (en) 2006-01-30 2011-02-23 埃瓦克国际有限公司 Vacuum sewer system
CN104487379A (en) * 2012-05-21 2015-04-01 可口可乐公司 Bag-in-box connector system
CN104806783A (en) * 2015-03-03 2015-07-29 杭州聚川环保科技有限公司 Fully-opened vacuum diaphragm valve
CN105473915A (en) * 2013-03-11 2016-04-06 滨特尔民用水处理有限责任公司 Mechanical pressure switch
CN108884945A (en) * 2016-04-01 2018-11-23 恩特格里斯公司 The membrane valve that can be completely closed

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101012663B (en) 2006-01-30 2011-02-23 埃瓦克国际有限公司 Vacuum sewer system
CN100462605C (en) 2007-02-13 2009-02-18 万若(北京)环境工程技术有限公司 Diaphragm type negative pressure valve used for conveying sewage water
CN104487379A (en) * 2012-05-21 2015-04-01 可口可乐公司 Bag-in-box connector system
CN105473915A (en) * 2013-03-11 2016-04-06 滨特尔民用水处理有限责任公司 Mechanical pressure switch
CN104806783A (en) * 2015-03-03 2015-07-29 杭州聚川环保科技有限公司 Fully-opened vacuum diaphragm valve
CN108884945A (en) * 2016-04-01 2018-11-23 恩特格里斯公司 The membrane valve that can be completely closed

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