CN2359666Y - Anti-cunter-flow water meter - Google Patents
Anti-cunter-flow water meter Download PDFInfo
- Publication number
- CN2359666Y CN2359666Y CN 99219622 CN99219622U CN2359666Y CN 2359666 Y CN2359666 Y CN 2359666Y CN 99219622 CN99219622 CN 99219622 CN 99219622 U CN99219622 U CN 99219622U CN 2359666 Y CN2359666 Y CN 2359666Y
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- CN
- China
- Prior art keywords
- water meter
- water
- sleeve pipe
- utility
- model
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a water meter, particularly a water meter with a water theft protection function, which belongs to the instrumental technical field. The utility model is mainly that the inner end part of a water inlet of the existing water meter is added with a backflow stopper, when the water meter is accurately installed and used, the utility model has the accurate metering function like the existing water meter; if the water meter is reversely installed, a water theft phenomenon appears, the utility model can automatically close water flow immediately to prevent a pointer of the water meter from rotating reversely, the utility model overcomes the defect of the erroneous metering of the existing water meter caused by the reverse rotation, and the water resource waste can be stopped.
Description
The utility model relates to a kind of water meter, and especially a kind of water meter with anti-stealing water function belongs to field of instrumentation technology.
At present, used water meter is by current impulsions impeller, and the driven gear transmission shows the simple measuring apparatus of flow by pointer.Under the prerequisite of correctly installing and using, can play the effect of accurate metering, but if when the water meter upside-down mounting used, then current impulsion impeller reversing, driven gear and pointer reversing, the water yield that water meter is shown reduces, cause metering wrong, thereby reach the purpose of stolen water, caused a large amount of wastes of water resource, this is an existing big drawback with water meter.
The purpose of this utility model is intended to overcome the deficiency of above-mentioned prior art, and a kind of water meter that can prevent aqueous reflux is provided, and can accurately measure the water yield when correctly installing and using, and then stops during the water meter upside-down mounting supplying water.
For achieving the above object, the technical solution adopted in the utility model is: now near the inner sealing of dial plate one end a counterflow prevention device is being installed with the water meter water inlet, this counterflow prevention device is made up of sleeve pipe, screw rod and sealing shroud, the middle part of sleeve pipe is furnished with tapping hole along circumference, adopt threaded engagement between sleeve pipe and the screw rod, sealing shroud is contained in the sleeve pipe middle part and covers boss, with pack into the inner end of water meter water inlet of counterflow prevention device, rotary screw makes its top hold out against diaphragm plate in the water meter, and sealing, positioning instant can.
The sleeve pipe and the screw rod of counterflow prevention device are made with plastic materials, and sealing shroud is nontoxic and resilient.
Compared with the prior art the utility model owing at water meter water inlet inner end a counterflow prevention device is housed, integrates metering, antitheft, when correctly installing and using, can play the purpose of accurate water measurement; When the water meter upside-down mounting, can stop automatically supplying water, thereby stop to utilize water meter to reverse the phenomenon of stolen water, saved water resource, can produce good economic benefit and social benefit.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is a broken section structural representation of the present utility model.
Fig. 2 is the cut-open view of counterflow prevention device.
As shown in Figure 1, the utility model anti-backflow water meter is to use on the basis of water meter now to improve slightly, promptly now near the inner sealing of dial plate one end a counterflow prevention device 2 is being installed with water meter water inlet 1, the structure of counterflow prevention device 2 as shown in Figure 2, form by sleeve pipe 4, screw rod 5 and sealing shroud 6, sleeve pipe 4 has a boss 7 near an end of water inlet, the middle part of sleeve pipe 4 along the circumferential direction is furnished with tapping hole 8, sleeve pipe 4 is that threaded engagement is connected with screw rod 5, and sealing shroud 6 is enclosed within and seals tapping hole 8 and boss 7 on the sleeve pipe 4.
During assembling, at first sealing shroud 6 is installed on the sleeve pipe 4, seal boss 7 and tapping hole 8, and it is stand-by near an end gluing of boss 7 at sealing shroud 6, then the rotation of screw rod 5 gluings is installed on the sleeve pipe 4, be counterflow prevention device 2, again the water meter loam cake is opened, take out water meter and advance interior arrangement, counterflow prevention device 2 is pushed the inner end of water meter water inlet 1 and holds out against from the water meter upper oral part, put in the water inlet end of screwdriver from water inlet 1 then, rotary screw 5 moves backward, makes the shank of screw rod 5 hold out against the interior diaphragm plate 3 of water meter, viscose glue on the screw rod 5 is located connection of thread simultaneously, sealing, firmly be installed on water meter inside, at last the water meter inner part restored, be anti-backflow water meter finished product described in the utility model.
When the utility model anti-backflow water meter is is correctly installed and used, behind the Open valve, the sealing shroud of water flow pressure spreading counterflow prevention device, current are gone out from the tapping hole on the sleeve pipe, the impeller rotation, make pointer correct metering on dial plate show water consumption by gear drive, thereby reach the purpose of accurate metering; When this anti-backflow water meter upside-down mounting; the water inlet that is water meter picks out water pipe, when water delivering orifice taps into water pipe; current flow to the counterflow prevention device in the water meter by impeller, because it is that sealing is assembled with the water meter inner port; current can not pass through; water flow pressure compresses the sealing shroud on the counterflow prevention device again simultaneously, has tightly sealed tapping hole, and current can not be flowed out by the counterflow prevention device; fundamentally solve the problem of utilizing the water meter upside-down mounting to usurp water, protected water resource.
Claims (2)
1, a kind of anti-backflow water meter, mainly by water inlet, water delivering orifice, impeller, gear, composition such as pointer and dial plate, it is characterized in that the inner sealing installation counterflow prevention device (2) of water inlet (1) near dial plate one end, counterflow prevention device (2) is by sleeve pipe (4), screw rod (5) and sealing shroud (6) constitute, sleeve pipe (4) has a boss (7) near water inlet end, the middle part of sleeve pipe (4) along the circumferential direction is furnished with tapping hole (8), between sleeve pipe (4) and the screw rod (5) is threaded engagement, sealing shroud (6) is enclosed within and seals tapping hole (8) and boss (7) on the sleeve pipe (4), with pack into the inner end of water meter water inlet (1) of counterflow prevention device (2), rotary screw (5) makes its top hold out against the interior diaphragm plate (3) of water meter, sealing, positioning instant can.
2, anti-backflow water meter according to claim 1 is characterized in that described sleeve pipe (4) and screw rod (5) all make with plastic material, and sealing shroud (6) is nontoxic and resilient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99219622 CN2359666Y (en) | 1999-01-14 | 1999-01-14 | Anti-cunter-flow water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99219622 CN2359666Y (en) | 1999-01-14 | 1999-01-14 | Anti-cunter-flow water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2359666Y true CN2359666Y (en) | 2000-01-19 |
Family
ID=34010509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99219622 Expired - Fee Related CN2359666Y (en) | 1999-01-14 | 1999-01-14 | Anti-cunter-flow water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2359666Y (en) |
-
1999
- 1999-01-14 CN CN 99219622 patent/CN2359666Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |