CN105042122A - Water-saving minitype backflow preventer - Google Patents
Water-saving minitype backflow preventer Download PDFInfo
- Publication number
- CN105042122A CN105042122A CN201510531104.XA CN201510531104A CN105042122A CN 105042122 A CN105042122 A CN 105042122A CN 201510531104 A CN201510531104 A CN 201510531104A CN 105042122 A CN105042122 A CN 105042122A
- Authority
- CN
- China
- Prior art keywords
- water
- valve
- backflow preventer
- sealing
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
- F16K15/023—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
Abstract
The invention provides a water-saving minitype backflow preventer which comprises a dual-seal-pair device. The dual-seal-pair device is composed of a valve sealing seat bipyramid opening and a conical valve plate. A control channel is arranged on a valve sealing seat between two sealing pairs of the dual-seal-pair device, a water inlet cavity is divided into a main cavity body and a control cavity body by the valve sealing seat bipyramid opening and the conical valve plate, and the control channel is communicated with the control cavity body through a through hole in a valve. The water-saving minitype backflow preventer has the beneficial effects that periodic splashing of a water escape valve can be effectively avoided, and the water saving function is achieved.
Description
Technical field
The invention belongs to valve technology field, especially relate to a kind of water saving Miniature backflow preventer.
Background technique
Backflow preventer is the water supply network current according to China, especially the backflow of Drinking Water pipeline is seriously polluted, again without when effectively preventing backflow pollution device, in a kind of considered critical pipeline of development, water can only the waterpower control combination device of one-way flow, its function is under any operating mode, prevent ducted medium from flowing backwards, and avoids to reach the object polluted that flows backwards.
When existing backflow preventer inlet pressure produces fluctuation, drain valve frequently can open sluicing, causes the waste of water resources, and a kind of water saving Miniature backflow preventer that can overcome above problem needs to research and develop further.
Summary of the invention
The object of the invention is a kind of water saving Miniature backflow preventer, can fluctuate by compressive resistance, avoid the waste of water resources.
Technological scheme of the present invention is: a kind of water saving Miniature backflow preventer, comprise the double-sealing that valve seal seat bipyramid mouth and tapered valve plate form and pay device, the two seals that described double-sealing pays device pay between valve seal seat be provided with control channel, water-inlet cavity interior separation is main chamber and control chamber two cavitys by described valve seal bipyramid mouth and tapered valve plate, and described control channel is communicated with described control chamber through the through hole of valve inner.
Further, be provided with diaphragm in described control chamber, diaphragm is assemblied on guide rod, and guide rod can be with dynamic diaphragm to leave sealing surface.
Further, the bottom of guide rod is provided with spring, and the other end of spring is fixed on adjusting nut.
The advantage that the present invention has and good effect are:
1, double-sealing pays the setting of device, and when can prevent backflow preventer inlet pressure from producing fluctuation, drain valve frequently opens sluicing, avoids the waste device of water resources.
2, double-sealing pays device is main chamber and control chamber two cavitys by water-inlet cavity interior separation, and energy assure feed water system upstream pressure, when producing normal fluctuation, effectively prevents the periodicity splash of backflow preventer drain valve.Ensure the realization of water-saving function.
3, the setting of single valve plate bipyramid mouth, can improve sealing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure:
1-valve body, 2-taper valve plate, 3-first sealing gasket, 4-first spring, 5-valve seat, 6-valve plate, 7-second sealing gasket, 8-second spring, 9-valve gap, 10-adjusting nut, 11-the one O shape is enclosed, 12-guide rod, 13-diaphragm, 14-pressure ring, 15-the 2nd O shape is enclosed, 16-lower valve base, 17-hexagon nut, 18-plain washer, the main chamber of 19-Regulation spring a-, b-control chamber, c-control channel, d-sealing seat bipyramid mouth.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated.
As shown in Figure 1, one water saving Miniature backflow preventer of the present invention, comprise valve body 1, taper valve plate 2, first sealing gasket 3, first spring 4, valve seat 5, valve plate 6, second sealing gasket 7, second spring 8, valve gap 9, adjusting nut 10, one O shape circle 11, guide rod 12, diaphragm 13, pressure ring 14, 2nd O shape circle 15, lower valve base 16, hexagon nut 17, plain washer 18, Regulation spring 19, valve seat 5, lower valve base 16 is all assemblied on valve body 1, valve seat 5, lower valve base 16 vertical distribution, the 2nd O shape circle 15 is provided with between lower valve base 16 and valve body 1, and under the pressure of medium, taper valve plate 2, valve plate 6 leaves sealing surface, medium normally circulates, at the first spring 4, under the effect of the second spring 8, drive the first sealing gasket 3, second sealing gasket 7 is close to sealing surface, ensure reflux medium not by.
The double-sealing that sealing seat bipyramid mouth d and tapered valve plate 2 form pays device, when preventing backflow preventer inlet pressure from producing fluctuation, drain valve frequently opens sluicing, avoid the waste device of water resources, it is main chamber a and control chamber b two cavitys by water-inlet cavity interior separation that described double-sealing pays device, described double-sealing is paid device and is provided with two seals and pays, described two seals pay between valve body be provided with control channel c, described control channel c is communicated with described control chamber b through the through hole of valve inner, energy assure feed water system upstream pressure is when producing normal fluctuation, effectively prevent the periodicity splash of backflow preventer drain valve, ensure the realization of water-saving function.
The 2nd O shape circle 15 is provided with between lower valve base 16 and valve body 1, the top of described guide rod 12 is arranged in the guide groove of valve body 1 lower end, the top of guide rod 12 is provided with an O shape circle 11, the center hole of diaphragm 13 is passed in the bottom of guide rod 12, extend in the hole of lower valve base 16, diaphragm 13 is assembled by pressure ring 14, diaphragm 13 is arranged on the top in hole, hexagon nut 17, plain washer 18 to be arranged in described hole and to be assemblied on guide rod 12, the top of Regulation spring 19 contacts with hexagon nut 17, bottom contacts with adjusting nut 10, adjusting nut 10 is assemblied in the bottom of lower valve base 16, when guide rod 12 is carried, band dynamic diaphragm 13 leaves sealing surface, water is let out down by the hole on lower valve base 16.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (3)
1. a water saving Miniature backflow preventer, it is characterized in that: comprise the double-sealing that valve seal seat bipyramid mouth and tapered valve plate form and pay device, the two seals that described double-sealing pays device pay between valve seal seat be provided with control channel, water-inlet cavity interior separation is main chamber and control chamber two cavitys by described valve seal bipyramid mouth and tapered valve plate, and described control channel is communicated with described control chamber through the through hole of valve inner.
2. one water saving Miniature backflow preventer according to claim 1, it is characterized in that: be provided with diaphragm in described control chamber, diaphragm is assemblied on guide rod, and guide rod can be with dynamic diaphragm to leave sealing surface.
3. one water saving Miniature backflow preventer according to claim 1, it is characterized in that: the bottom of guide rod is provided with spring, the other end of spring is fixed on adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510531104.XA CN105042122A (en) | 2015-08-26 | 2015-08-26 | Water-saving minitype backflow preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510531104.XA CN105042122A (en) | 2015-08-26 | 2015-08-26 | Water-saving minitype backflow preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105042122A true CN105042122A (en) | 2015-11-11 |
Family
ID=54448928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510531104.XA Pending CN105042122A (en) | 2015-08-26 | 2015-08-26 | Water-saving minitype backflow preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042122A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1482223A1 (en) * | 2003-05-30 | 2004-12-01 | Miura Co., Ltd. | Check valve |
| CN101749461A (en) * | 2008-12-15 | 2010-06-23 | 刘永 | Screw-thread backflow prevention device being free from being equipped with external conduit |
| CN102147026A (en) * | 2010-02-10 | 2011-08-10 | 天津市国威给排水设备制造有限公司 | Micro backflow preventer |
| CN202012642U (en) * | 2011-05-10 | 2011-10-19 | 杭州春江阀门有限公司 | Novel backflow preventer |
| CN102261499A (en) * | 2011-05-17 | 2011-11-30 | 天津市国威给排水设备制造有限公司 | Double-diaphragm backflow preventer without external piping and capable of preventing abnormal water drainage of water draining opening |
| CN203223594U (en) * | 2013-04-17 | 2013-10-02 | 汪学良 | Low-resistance exhaust type backflow preventing device |
| CN204254008U (en) * | 2014-10-23 | 2015-04-08 | 天津市国威给排水设备制造有限公司 | Early warning type backflow preventer |
| CN204878879U (en) * | 2015-08-26 | 2015-12-16 | 天津市塘沽沃特斯阀门有限公司 | Miniature backflow preventer of economizing on water |
-
2015
- 2015-08-26 CN CN201510531104.XA patent/CN105042122A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1482223A1 (en) * | 2003-05-30 | 2004-12-01 | Miura Co., Ltd. | Check valve |
| CN101749461A (en) * | 2008-12-15 | 2010-06-23 | 刘永 | Screw-thread backflow prevention device being free from being equipped with external conduit |
| CN102147026A (en) * | 2010-02-10 | 2011-08-10 | 天津市国威给排水设备制造有限公司 | Micro backflow preventer |
| CN202012642U (en) * | 2011-05-10 | 2011-10-19 | 杭州春江阀门有限公司 | Novel backflow preventer |
| CN102261499A (en) * | 2011-05-17 | 2011-11-30 | 天津市国威给排水设备制造有限公司 | Double-diaphragm backflow preventer without external piping and capable of preventing abnormal water drainage of water draining opening |
| CN203223594U (en) * | 2013-04-17 | 2013-10-02 | 汪学良 | Low-resistance exhaust type backflow preventing device |
| CN204254008U (en) * | 2014-10-23 | 2015-04-08 | 天津市国威给排水设备制造有限公司 | Early warning type backflow preventer |
| CN204878879U (en) * | 2015-08-26 | 2015-12-16 | 天津市塘沽沃特斯阀门有限公司 | Miniature backflow preventer of economizing on water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |