CN106679752A - Backflow prevention water meter - Google Patents
Backflow prevention water meter Download PDFInfo
- Publication number
- CN106679752A CN106679752A CN201611156051.9A CN201611156051A CN106679752A CN 106679752 A CN106679752 A CN 106679752A CN 201611156051 A CN201611156051 A CN 201611156051A CN 106679752 A CN106679752 A CN 106679752A
- Authority
- CN
- China
- Prior art keywords
- water
- water meter
- flow
- entrance
- outlet
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a backflow prevention water meter. The water meter comprises a water meter shell arranged on the inner side of a water measuring device, a water inlet and a water outlet are arranged on the water meter shell, a countercurrent alarming device is mounted on the water outlet, a flow direction sense board which senses the water flow direction of the water outlet is arranged on the lower end of the countercurrent alarming device; a one-way valve which prevents the backflow of the water flow is arranged on the water inlet near the water meter shell end, the one-way valve comprises a valve chest which is an integrated device arranged with the water meter shell and is provided with an entrance and an exit, and a spring and a valve flap are arranged on the inner side of the valve chest, one end of the spring is fixedly arranged on the end wall of the valve chest with opening, the other end abut joins the valve flap closely adhering to the entrance, and the diameters of the entrance and the exit are smaller than the diameter of the valve chest. The air reverse absorption and the backflow of the water flow can be prevented by the backflow prevention water meter, the safety of the pipe network of the tap water supply is effectively guaranteed, and water use safety and benefit of a household are safeguarded; when the one-way valve is damaged and cannot prevent the backflow of the water flow, the countercurrent alarming device sends out an alarm signal so that the household is aware of the situation in time.
Description
Technical field
The present invention relates to a kind of water meter, more particularly to a kind of Anti-cunter-flow water meter.
Background technology
It is well known that tap water dispatch from the factory after the faucet that is delivered in user family of Jing water supply networks, and the water in user family
Tap is interconnected with water supply network；When water factory stops supplying water, when user opens the faucet in family, the water outlet of faucet
Mouth can also may can bring toxic gas or liquid into by air suck-back to water supply network while suck-back, cause the use of user
Water security can not be protected.Additionally, the tap water used by user is all measured by water meter, existing water meter is big
The many functions of possessing metering discharge, when tap water flows back, water meter can equally measure the flow of tap water, cause the user
Extra expenses.
The content of the invention
It is an object of the invention to solve shortcoming and defect present in above-mentioned prior art, there is provided a kind of anti-down flowing water
The water inlet of table, specifically water meter case is provided with check valve, when water factory stops supplying water, can prevent air suck-back and current from returning
Stream, is effectively protected the safety of tap water pipe network, ensures user's water safety and interests；The water meter is additionally provided with and plays two
The adverse current alarm of level protective effect, when check valve damages, current can not be prevented to flow back, then adverse current alarm sends alarm signal
Number, make the timely Awareness status of user.
The technical solution adopted for the present invention to solve the technical problems is：A kind of Anti-cunter-flow water meter, including the built-in survey water yield
The water meter case of device, the water meter case is provided with water inlet and outlet, it is characterised in that the outlet is provided with adverse current
Alarm, the lower end of adverse current alarm be provided with can induce inlet water stream flow direction flow to tablet；The water inlet is near water
Watch shell one end is provided with the check valve for preventing current from flowing back, and check valve includes entrance is wholely set and be provided with water meter case and goes out
Mouthful valve chamber and spring and flap in valve chamber, one end of spring be fixed at valve chamber be provided with the end wall of outlet, it is another
End offsets with the flap for being close to entrance, and the diameter of outlet and entrance is less than the diameter of valve chamber.
During water supply, tap water is entered from the water inlet of water meter case, the entrance of check valve is subsequently flow to, in the water of tap water
Under pressure effect, the flap for sealing entrance is pushed open by tap water, and then tap water is into valve chamber and Jing outlet inflows are provided with survey water
Measure inside the water meter case of device, Jing surveys the tap water of water yield device metering from outlet discharge, current are pushed away tablet is flowed to
To being correctly oriented, adverse current alarm will not report to the police.When water factory stops supplying water, the water inlet of water meter case does not have current to supply
Enter, the water pressure that flap is subject to disappears, under the elastic force effect of spring, flap closes the inlet seal of check valve, to prevent
Air suck-back and current flow back.If check valve damages, current can not be prevented to flow back, the current that flowing to tablet can be refluxed are pushed away
In the opposite direction, and adverse current alarm is promoted to send alarm signal.
Further, the flap is spherical.
Further, the valve chamber is tapered into and in arc line type change near the diameter of entrance.Thus, in the bullet of spring
Under power effect, the surface of globe disk circumferentially contacts with the inner surface of valve chamber, produces good sealing effectiveness.
Further, the adverse current alarm includes and flows to harvester, the letter to harvester collection that induction apparatuss are connected
The single-chip microcomputer of number amplifying circuit being amplified and amplifying circuit connection and the setting button being connected with single-chip microcomputer respectively and acousto-optic
Alarm.
Further, the tablet that flows to is elastic material, and company is fixed in the upper end and adverse current alarm for flowing to tablet
Connect and make lower end nature lowering in outlet.
In sum, the water inlet of Anti-cunter-flow water meter of the invention is provided with check valve, when water factory stops supplying water, can prevent
Air suck-back and current flow back, and are effectively protected the safety of tap water pipe network, ensure user's water safety and interests；Should
Water meter is additionally provided with the adverse current alarm for playing second class protection effect, when check valve damages, current can not be prevented to flow back, then countercurrently
Alarm sends alarm signal, makes the timely Awareness status of user.
Description of the drawings
Fig. 1 is a kind of structure schematic diagram of Anti-cunter-flow water meter of the embodiment of the present invention 1；
Fig. 2 is the structure schematic diagram of the adverse current alarm of the embodiment of the present invention 1.
In figure, water meter case 1, water inlet 2, outlet 3, adverse current alarm 4, flow to tablet 5, check valve 6, entrance 7,
Outlet 8, valve chamber 9, spring 10, flap 11, harvester 12, amplifying circuit 13, single-chip microcomputer 14, setting button 15, audible-visual annunciator
16th, water yield device 17 is surveyed.
Specific embodiment
Embodiment 1
A kind of Anti-cunter-flow water meter described by the present embodiment 1, as depicted in figs. 1 and 2, including the built-in water meter for surveying water yield device 17
Housing 1, the water meter case is provided with water inlet 2 and outlet 3, and the outlet is provided with adverse current alarm 4, under adverse current alarm
End be provided with can induce inlet water stream flow direction flow to tablet 5；Water inlet is provided near water meter case one end prevents current from returning
The check valve 6 of stream, check valve includes entrance 7 is wholely set and be provided with water meter case and exports 8 valve chamber 9 and located at valve chamber
Interior spring 10 and flap 11, one end of spring be fixed at valve chamber be provided with the end wall of outlet, the other end be close to entrance
Flap offsets, and the diameter of outlet and entrance is less than the diameter of valve chamber.
During water supply, tap water is entered from the water inlet of water meter case, the entrance of check valve is subsequently flow to, in the water of tap water
Under pressure effect, the flap for sealing entrance is pushed open by tap water, and then tap water is into valve chamber and Jing outlet inflows are provided with survey water
Measure inside the water meter case of device, Jing surveys the tap water of water yield device metering from outlet discharge, current are pushed away tablet is flowed to
To being correctly oriented, adverse current alarm will not report to the police.When water factory stops supplying water, the water inlet of water meter case does not have current to supply
Enter, the water pressure that flap is subject to disappears, under the elastic force effect of spring, flap closes the inlet seal of check valve, to prevent
Air suck-back and current flow back.If check valve damages, current can not be prevented to flow back, the current that flowing to tablet can be refluxed are pushed away
In the opposite direction, and adverse current alarm is promoted to send alarm signal.
The flap of the present embodiment is spherical.
In the present embodiment, valve chamber is tapered into and in arc line type change near the diameter of entrance.Thus, in the elastic force of spring
Under effect, the surface of globe disk circumferentially contacts with the inner surface of valve chamber, produces good sealing effectiveness.
The adverse current alarm of the present embodiment includes and flows to harvester 12, the signal to harvester collection that induction apparatuss are connected
The single-chip microcomputer 14 and the setting button 15 that is connected with single-chip microcomputer respectively of the amplifying circuit 13 being amplified and amplifying circuit connection and
Audible-visual annunciator 16.
The tablet that flows to of the present embodiment is elastic material, and the upper end for flowing to tablet is fixedly connected simultaneously with adverse current alarm
Make lower end nature lowering in outlet.
The above, is only presently preferred embodiments of the present invention, not makees any form to the technology contents of the present invention
On restriction.It is every according to the present invention technical spirit above example is made any simple modification, equivalent variations with repair
Decorations, still fall within the range of technical scheme.
Claims (5)
1. a kind of Anti-cunter-flow water meter, including the built-in water meter case for surveying water yield device, the water meter case is provided with water inlet and goes out
The mouth of a river, it is characterised in that the outlet is provided with adverse current alarm, the lower end of adverse current alarm is provided with and can sense outlet water
What stream was flowed to flows to tablet；The water inlet is provided with the check valve for preventing current from flowing back, check valve near water meter case one end
Including the valve chamber of entrance and exit and the spring in valve chamber and flap are wholely set and are provided with water meter case, spring
One end is fixed at that valve chamber is provided with the end wall of outlet, the other end offsets with the flap for being close to entrance, the diameter of outlet and entrance
Less than the diameter of valve chamber.
2. a kind of Anti-cunter-flow water meter according to claim 1, it is characterised in that the flap is spherical.
3. a kind of Anti-cunter-flow water meter according to claim 2, it is characterised in that the valve chamber near entrance diameter gradually
Diminish and in arc line type change.
4. a kind of Anti-cunter-flow water meter according to claim 3, it is characterised in that the adverse current alarm includes and flow to sense
Answer the single-chip microcomputer of harvester, the amplifying circuit that is amplified of signal to harvester collection and amplifying circuit connection that plate connects
And the setting button that is connected with single-chip microcomputer respectively and audible-visual annunciator.
5. a kind of Anti-cunter-flow water meter according to claim 4, it is characterised in that described to flow to tablet for elastic material,
Flow to tablet upper end be fixedly connected with adverse current alarm and make lower end nature lowering in outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156051.9A CN106679752A (en) | 2016-12-14 | 2016-12-14 | Backflow prevention water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156051.9A CN106679752A (en) | 2016-12-14 | 2016-12-14 | Backflow prevention water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106679752A true CN106679752A (en) | 2017-05-17 |
Family
ID=58868327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611156051.9A Pending CN106679752A (en) | 2016-12-14 | 2016-12-14 | Backflow prevention water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106679752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020233304A1 (en) * | 2019-05-17 | 2020-11-26 | 聊城市农业机械科学研究所 | Anti-idling water meter and operation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555621U (en) * | 2009-12-14 | 2010-08-18 | 沧州宏丰精密铸造有限公司 | Reverse flow prevention water meter |
| US9315977B1 (en) * | 2013-01-07 | 2016-04-19 | Joelex, Inc. | Valve apparatus for regulating fluids through a pipe |
| CN205173586U (en) * | 2015-12-06 | 2016-04-20 | 上海冠意捷实业有限公司 | Reflux -preventing water pipe joint |
| CN205207793U (en) * | 2015-10-26 | 2016-05-04 | 德阳九鼎智远知识产权运营有限公司 | One -way automatic valve |
-
2016
- 2016-12-14 CN CN201611156051.9A patent/CN106679752A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555621U (en) * | 2009-12-14 | 2010-08-18 | 沧州宏丰精密铸造有限公司 | Reverse flow prevention water meter |
| US9315977B1 (en) * | 2013-01-07 | 2016-04-19 | Joelex, Inc. | Valve apparatus for regulating fluids through a pipe |
| CN205207793U (en) * | 2015-10-26 | 2016-05-04 | 德阳九鼎智远知识产权运营有限公司 | One -way automatic valve |
| CN205173586U (en) * | 2015-12-06 | 2016-04-20 | 上海冠意捷实业有限公司 | Reflux -preventing water pipe joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020233304A1 (en) * | 2019-05-17 | 2020-11-26 | 聊城市农业机械科学研究所 | Anti-idling water meter and operation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20170517 |