CN101750127B - Water meter preventing back-flow of sewage - Google Patents
Water meter preventing back-flow of sewage Download PDFInfo
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- CN101750127B CN101750127B CN2008101540533A CN200810154053A CN101750127B CN 101750127 B CN101750127 B CN 101750127B CN 2008101540533 A CN2008101540533 A CN 2008101540533A CN 200810154053 A CN200810154053 A CN 200810154053A CN 101750127 B CN101750127 B CN 101750127B
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Abstract
The invention provides a water meter combination preventing back-flow of sewage, the water meter combination preventing the back-flow of the sewage comprises a drain water non-return device, an outlet water non-return device and a water meter assembly, wherein a housing of the device is connected and communicated with the water meter assembly. An inlet of the water meter assembly comprises two non-return plates which are respectively matched with bases for realizing sealing and non-return effect, a control chamber is arranged at the lower part between the two non-return plates, a diaphragm isarranged in the control chamber, the diaphragm is flatly paved on the top end surface of a pressure plate, a lower cover is used for being covered and fastened on the housing of the drain water non-return device for forming a control cavity, and water of a water inlet of the drain water non-return device enters into the control cavity through a through hole on the housing without externally hanging a control accessory. The water meter combination has the benefits that the water meter combination preventing the back-flow of the sewage is a water meter device which strictly limits a pressure medium in a pipeline to flow in single direction, the structure is compact, and the mounting space is saved; the water meter combination can not only meet the metering requirement, but also meet the situation of guiding the back-flow medium or the medium in critical back-flow in the pipeline out of the pipe under any working condition and from air isolating, the mounting length is basically coincided with a home water meter, and the water meter combination has good interchangeability with the water meter which is currently used in families at the present stage, thereby being not afraid of malicious damage, ensuring the safety of water supply and preventing the pollution.
Description
Technical field
The present invention relates to a kind of apparatus structure, particularly a kind of water meter preventing back-flow of sewage composite set.
Background technology
The safety problem of present urban water supply becomes the problem of Party and government and the concern of common people's common elevation, and Xi'an has just taken place because municipal administration is cut off the water suddenly, and the stool and urine in lavatory, civic is sucked into the municipal water supply pipeline; When municipal administration supplied water once more, many citizen tap of fetching boiling water flowed out toilet paper and excremental great water resource pollution accident; Middle water has also taken place in Tianjin, and citizen's water of flushing the toilet is back to the accident of water supply network, the community resident that has is compelled for a long time unexpectedly drinks middle water; Continuous with municipal water supply department contradiction, cause citizen to go to bits, water body and water supply network and equipment are impaired serious; Make a very bad impression, this example is in other cities also ubiquity, so China Ministry of Construction requires all will install the anti-backflow facility additional possibly producing backflow place; But in relating to citizen house, there is not solution all the time for the water supply terminal of representative; Countries in the world government knows the importance of this type problem perfectly well, and can't guarantee to make whole urban water supply bring great potential safety hazard by resident's water safety.Because direct water receiving table after municipal water purification is registered one's residence in the general citizen family; The water meter outlet possibly not have the space with regard in the directly hidden body of wall, will destroy body of wall as installing other equipment additional; Citizen are unwilling maybe will compensate; Can't coordinate, will at any time backflow pollution can take place as not adorning, innumerable because of suffering from.At this moment just need a kind of water meter preventing back-flow of sewage composite set, need only for water meter or water meter shell can meet the demands down by function of measuring.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the present invention can reach really energy-conservation, metering through a kind of water meter preventing back-flow of sewage composite set is provided, and is safe, anti-pollution, convenient, takes up an area of little purpose.
A kind of water meter preventing back-flow of sewage composite set, water meter preventing back-flow of sewage composite set include sluicing check device, water outlet check device and water meter assembly, and the housing of said water inlet check device and water outlet check device is connected; And then be communicated with the water meter assembly, it is characterized in that: said sluicing check device includes housing one, check plate one, spring one, check lever one; The check lever one of said sluicing check device is arranged on sluicing check device housing one water inlet oral area; Said check plate one moves right and opens during unlatching, and check plate one leaves the pedestal that matches, and water can pass through; The water meter assembly of flowing through begins metering.Check plate one is moved to the left under the effect of spring one and is close to the pedestal that matches and can realizes sealing non-return when closing; The sluicing check device is provided with diaphragm in the pulpit; Sealing gasket; Cover and be fastened on the lower housing portion of sluicing check device with lower cover; Form the pulpit, the water of sluicing check device water inlet is through the through hole on the said housing one and through getting into the pulpit epicoele, and the sluicing check device is with the housing one of said water outlet check device and the water meter assembly is fastening and be communicated with; Said check plate two moves right and opens during unlatching, and check plate two leaves the pedestal that matches, and water can pass through, and check plate two is moved to the left and is close to the pedestal that matches and can realizes sealing non-return when closing.
Effect of the present invention is that the water meter preventing back-flow of sewage composite set of this structure is a kind of strict metering water meter that ducted pressure medium is made uniflux that limits; It can satisfy under any operating mode all can measure and with ducted refluence medium or the medium that is in critical refluence " lead " go out to manage outside; Guarantee water supply security, prevent to pollute.The low water head loss is guaranteed in through type, big area of passage design; The ultrashort type structure guarantees to save installing space.
Description of drawings
The cut-open view of structure when Fig. 1 normally opens for the present invention;
The cut-open view of structure when Fig. 2 sluices for the present invention normally closes.
Embodiment
In conjunction with accompanying drawing and embodiment water meter preventing back-flow of sewage composite set structure of the present invention is explained.
The water meter preventing back-flow of sewage composite set is the structure that the technical field important breakthrough is arranged.
As shown in Figure 1, arrow is represented the media flow direction among Fig. 1.A kind of water meter preventing back-flow of sewage composite set, this water meter preventing back-flow of sewage composite set includes the sluicing check device, water outlet check device and water meter assembly; The housing of said device is connected and be communicated with the water meter assembly successively, and during the water forward flow, said check plate one moves right and opens under hydraulic action; Check plate one leaves the pedestal that matches; Check plate two moves right and opens simultaneously, and check plate two leaves the pedestal that matches, and the water of the water inlet of sluicing check device is through the through hole on this housing one and through getting into the pulpit; When pressure water action is on diaphragm, can promote diaphragm and realize action; Pressure relief opening is closed, normal water supply forward, and the water meter normal rotation is measured.
As shown in Figure 2, arrow is represented the media flow direction among Fig. 2.When water meter preventing back-flow of sewage composite set import decompression; Check plate one is moved to the left is close to the pedestal that matches, and check plate two straight line left moves and is close to the pedestal that matches and can all realizes sealing non-return, and the water of the water inlet of sluicing check device is owing to lose pressure; The water of pulpit enters water inlet through the through hole on this housing one; Check plate one, the pressure water action between the check plate two promote diaphragm and realize action downwards on diaphragm, open the sluicing function; Do not pollute thereby guaranteeing can not take place to flow backwards, water meter can not reverse.
Claims (3)
1. water meter preventing back-flow of sewage composite set; This water meter preventing back-flow of sewage composite set includes sluicing check device, water outlet check device and water meter assembly, the housing of said sluicing check device and water outlet check device is connected, and then is communicated with the water meter assembly; It is characterized in that: said sluicing check device includes housing one (3), check plate one (4), spring one (2); Check lever one (1), the check lever one (1) of said sluicing check device are arranged on sluicing check device housing one (3) water inlet oral area, and the check plate two (14) of water outlet check device is arranged on water outlet check device water outlet; As the unidirectional non-return of restriction current; Be provided with sluicing check device bottom discharge opening and the pulpit that control sluices between check plate one (4), the check plate two (14), be provided with diaphragm (10), sealing gasket (9) in the said pulpit, cover and be fastened on housing one (3) bottom of sluicing check device with lower cover (11); Said check plate one (4) moves right and opens during unlatching; Check plate one (4) leaves the pedestal that matches, and water can pass through, and check plate one (4) is moved to the left under the effect of spring one (2) and is close to the pedestal that matches and can realizes sealing non-return when closing; The water of the water inlet of sluicing check device gets into the pulpit epicoele through the through hole on this housing one (3), and the sluicing check device is fastening and connection with the housing pedestal (6) of said water outlet check device; Check plate two (14) moves right and opens during unlatching, and check plate two (14) leaves the pedestal that matches, and water can pass through, and check plate two (14) is close to the pedestal that matches and can be realized sealing non-return being moved to the left when closing.
2. water meter preventing back-flow of sewage composite set according to claim 1 is characterized in that: the water of sluicing check device water inlet directly gets into the pulpit epicoele through the through hole on the said housing one (3), need not plug-in accessory.
3. water meter preventing back-flow of sewage composite set according to claim 1; It is characterized in that: the bottom discharge opening of said sluicing check device is the scraggly out-of-flatness face of cylinder; Can go into air from a large amount of benefits in the discharge opening junction, bottom of collection bucket (13) and sluicing check device to guarantee air; Thereby making the surface of contact of sluice smooth and diaphragm pressure ring is interrupted surface of contact, smooth and easy to guarantee sluicing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101540533A CN101750127B (en) | 2008-12-15 | 2008-12-15 | Water meter preventing back-flow of sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101540533A CN101750127B (en) | 2008-12-15 | 2008-12-15 | Water meter preventing back-flow of sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101750127A CN101750127A (en) | 2010-06-23 |
| CN101750127B true CN101750127B (en) | 2012-05-30 |
Family
ID=42477439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101540533A Active CN101750127B (en) | 2008-12-15 | 2008-12-15 | Water meter preventing back-flow of sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101750127B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486237A (en) * | 2010-12-01 | 2012-06-06 | 刘永 | Backflow preventer with built-in filter screen and no external piping |
| TWI838171B (en) * | 2023-03-16 | 2024-04-01 | 立居富股份有限公司 | Water hammer absorption device and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2215113Y (en) * | 1994-07-22 | 1995-12-13 | 徐宏智 | Theft-proof water meter |
| CN2354109Y (en) * | 1998-09-25 | 1999-12-15 | 钟筱良 | Rotary-wing type non-return water meter |
| CN2716810Y (en) * | 2004-08-19 | 2005-08-10 | 孙良荣 | An inverse flow proof and pressure fluctuation interference proof water meter |
-
2008
- 2008-12-15 CN CN2008101540533A patent/CN101750127B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2215113Y (en) * | 1994-07-22 | 1995-12-13 | 徐宏智 | Theft-proof water meter |
| CN2354109Y (en) * | 1998-09-25 | 1999-12-15 | 钟筱良 | Rotary-wing type non-return water meter |
| CN2716810Y (en) * | 2004-08-19 | 2005-08-10 | 孙良荣 | An inverse flow proof and pressure fluctuation interference proof water meter |
Non-Patent Citations (1)
| Title |
|---|
| M.J.Kirik R.J.Gradle.止回阀与给水系统水锤现象的研究模型.《流体机械》.1982,(第10期),49-58. * |
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| Publication number | Publication date |
|---|---|
| CN101750127A (en) | 2010-06-23 |
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