CN204878879U - Miniature backflow preventer of economizing on water - Google Patents
Miniature backflow preventer of economizing on water Download PDFInfo
- Publication number
- CN204878879U CN204878879U CN201520651926.7U CN201520651926U CN204878879U CN 204878879 U CN204878879 U CN 204878879U CN 201520651926 U CN201520651926 U CN 201520651926U CN 204878879 U CN204878879 U CN 204878879U
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- water
- valve
- backflow preventer
- bipyramid
- control chamber
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Abstract
The utility model provides a miniature backflow preventer of economizing on water, the device is paid to double containment including body seals seat bipyramid mouth and tapered valve plate are constituteed, be equipped with the control channel on the body seals seat between sealed the paying of twice of double containment pair device, body seals bipyramid mouth is two cavitys of main cavity and control chamber with tapered valve plate with intake antrum internal partitioning, the control channel through the inside through -hole of valve body with control chamber intercommunication. The beneficial effects of the utility model are that the splash of wash -out valve sexual periodicity can be effectively prevented, the water conservation function is realized.
Description
Technical field
The utility model belongs to valve technology field, especially relates 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.
Model utility content
The purpose of this utility model is a kind of water saving Miniature backflow preventer, can fluctuate by compressive resistance, avoids the waste of water resources.
The technical solution of the utility model 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 utility model 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 utility model.
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 utility model is elaborated.
As shown in Figure 1, one water saving Miniature backflow preventer of the present utility model, 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 an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
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 |
|---|---|---|---|
| CN201520651926.7U CN204878879U (en) | 2015-08-26 | 2015-08-26 | Miniature backflow preventer of economizing on water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651926.7U CN204878879U (en) | 2015-08-26 | 2015-08-26 | Miniature backflow preventer of economizing on water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878879U true CN204878879U (en) | 2015-12-16 |
Family
ID=54823253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520651926.7U Active CN204878879U (en) | 2015-08-26 | 2015-08-26 | Miniature backflow preventer of economizing on water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042122A (en) * | 2015-08-26 | 2015-11-11 | 天津市塘沽沃特斯阀门有限公司 | Water-saving minitype backflow preventer |
-
2015
- 2015-08-26 CN CN201520651926.7U patent/CN204878879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042122A (en) * | 2015-08-26 | 2015-11-11 | 天津市塘沽沃特斯阀门有限公司 | Water-saving minitype backflow preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |