CN2660485Y - High sensitive antitheft water flowmeter - Google Patents
High sensitive antitheft water flowmeter Download PDFInfo
- Publication number
- CN2660485Y CN2660485Y CN 03248838 CN03248838U CN2660485Y CN 2660485 Y CN2660485 Y CN 2660485Y CN 03248838 CN03248838 CN 03248838 CN 03248838 U CN03248838 U CN 03248838U CN 2660485 Y CN2660485 Y CN 2660485Y
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- water
- channel
- impeller
- stop valve
- water channel
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Abstract
The utility model discloses a highly sensitive anti-theft water meter including a meter casing (10), a water inlet (13), a water inlet channel (14), a water outlet (26), a water outlet channel (25), an impeller box (3), an impeller (5) and a count mechanism. The utility model also includes a unidirectional check valve (1) and a lateral water channel (19). The check valve (1) is arranged in the water inlet channel (14) to block or be communicated with the water inlet channel (14) in one way. The inlet of the lateral water channel (19) is communicated with the water inlet channel (14) in front of the blade (17) of the check valve. The outlet of the water inlet channel (14) is arranged on the sidewall of the impeller box (3) of which the height is relative to the impeller (5). The outlet of the lateral water channel (19) is equipped with a nozzle (4). The inner diameter of the nozzle (4) is smaller than the inner diameter of the lateral water channel (19). The water meter is capable of putting an end to dripping water theft and flipping water theft, which maintains the economic interests of water supply companies and the state and also creates conditions for doing well in relations among neighbors, between owners and property management, etc.
Description
Technical field
The utility model relates to a kind of water meter, especially a kind of high sensitivity watermeter of preventing water burglary.
Background technology
At present, known water meter comprises watch shell, water inlet and passage, exhalant canal and water delivering orifice, with the impeller box that the water-in and water-out passage communicates, place in the impeller box and the impeller of wheel shaft one end connection count organization gear, the counting mechanism of forming by gearcase, gear, pointer, dial.Water enters impeller box through water inlet and intake tunnel, promotes the impeller rotation, drives counting mechanism and counts.But,, promptly when flowing through water meter, certain flow make water meter begin to rotate the flow of counting so there is an initiating flow in water meter owing to exist friction to wait resistance.And water meter initiating flow domestic and international prior art is all higher at present.With the DN15 water meter is example: B level table, initiating flow are 10L/h, and A level table is 14L/h, and certain customers' low discharge water i.e. " drip " water, and water meter is not counted, and press the critical point of B level table and calculate month " drip " available water 7.2m
3(10L/h * 24h * 30=7200L-7.2m
3); Press the critical point of A level table and calculate month " drip " available water 10.08m
3(14L/h * 24h * 30=10080L-10.08m
3).The general about 7～10m of three-person household water
3So the small part water rate can only be received by some domestic running water company, even can not receive water rate at all.
In addition, because the water meter forward is installed, water meter turbine just changes, when oppositely installing, and the water meter turbine counter-rotating, certain customers' forward is installed first quarter moon, and first quarter moon oppositely is installed, and when Running-water Company checked meter, water meter showed original position, and water supply company also almost can not receive water rate.
In sum, the water meter of prior art can positive and negatively use owing to initiating flow height in addition, so, " drip " stolen water and " upside-down mounting " stolen water phenomenon are more common, cause very large economy loss to Running-water Company and country, also cause some negative effects to relations such as neighborhood relationship and owner and property managements.
The utility model content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, and a kind of high sensitivity watermeter of preventing water burglary that can stop " drip " stolen water and " upside-down mounting " stolen water is provided.
Technical solution of the present utility model is: a kind of high sensitivity watermeter of preventing water burglary with following structure is provided, and it comprises watch shell, water inlet and intake tunnel, exhalant canal and water delivering orifice, impeller box and impeller and counting mechanism.It also comprises unidirectional stop valve and bypass water channel, and described unidirectional stop valve places intake tunnel, with unidirectional blocking-up or connection intake tunnel; Intake tunnel before the valve block of the import of described bypass water channel and stop valve spool communicates, the outlet of described bypass water channel be located at the corresponding impeller box sidewall of impeller height on, described bypass water channel exit is provided with spout, and the internal diameter of described spout is less than the internal diameter of bypass water channel.
The course of work of this high sensitivity watermeter of preventing water burglary is as follows:
During water, the valve block of stop valve does not rely on self gravitation or acting force of the spring to close automatically.
During water, when discharge was lower than certain flow such as 10L/h, unidirectional stop valve was closed equally, at this moment because tap water still has pressure, current enter the bypass water channel through the import of bypass water channel, through being located at the spout ejection of impeller box sidewall, drive counting mechanism with the rotation of impulsion impeller and count again.
When discharge greater than a certain amount of during as 10L/h, unidirectional stop valve is opened, move on the spool (valve block), current enter the rotation of impeller box promotion impeller again through another section that stop valve enters intake tunnel, drive counting mechanism and count, though and this moment the bypass water channel import do not close because space, stop valve open place is big, current almost can not be compressed into the bypass water channel of small size, normally do not count so do not influence water meter.
When user's upside-down mounting water meter, water enters from water delivering orifice, and stop valve is closed, and does not supply water, and can prevent user's upside-down mounting stolen water.
According to industry technician general knowledge as can be known, when discharge one regularly, the pipeline section that dwindles the somewhere is long-pending, can improve the somewhere flow rate of liquid greatly, and outlet diameter is less than the pipe diameter pressure of can increasing export.
So, after the utility model water meter adopts above structure, compare with the water meter of prior art, reduced water meter initiating flow significantly (as DN15 water meter initiating flow≤1L/h), increased substantially the sensitivity of water meter, reach the i.e. effect of metering of dripping, stopped the phenomenon of user's " drip " stolen water effectively.Simultaneously, because upside-down mounting promptly do not supply water, so, also stopped the phenomenon of " upside-down mounting " stolen water effectively.Thereby the economic interests of Running-water Company and country have been safeguarded, also for doing the neighbourhood well and relations such as owner and estate management have been created good material conditions.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is this high sensitivity watermeter of preventing water burglary longitudinal section.
Fig. 2 is that the setting angle of spout enlarges synoptic diagram.
Embodiment
In Fig. 1, water inlet 13 is located at the left end of watch shell 10.Intake tunnel 14 places in the watch shell 10, and the one end is communicated with water inlet 13, and the other end is communicated with the water inlet of impeller box 3 bottoms.Can establish screen pack 27 in the intake tunnel 14.Impeller 5 is installed in the impeller box 3.Water impulsion impeller 5 is after the water delivering orifice of the being located at impeller box 3 tops exhalant canal 25 interior with being located at watchcase 10 is communicated with, and exhalant canal 25 is communicated in the water delivering orifice 26 of watch shell 10 right-hand members.Entery and delivery port 13,26 is communicated with connecting pipe 12 through attaching nut 11 respectively.The gear 21 that the upper end of impeller 5 (axle 20) is provided with and gearcase 9 interior other gears 21 engagements, the top of gear (axle) 21 is provided with pointer 24, and panel 6 is provided with the dial (not shown), and these parts constitute counting mechanisms.Panel 6 tops are provided with sight glass 7, seal with rubber gasket 23 between glass 7 and gearcase 9 and the watch shell 10, and are tightened by copper cover 8.Copper cover 8 tops can be established and be shown to cover 29.Except that above institute is carried the material, watch shell 10 general grey cast iron or the brass of adopting, remaining part generally adopts plastics.More than be prior art, so do not describe in detail.
The utility model high sensitivity watermeter of preventing water burglary has increased unidirectional stop valve 1 and bypass water channel 19 on the prior art water meter.
Described unidirectional stop valve 1 is made up of valve seat 28, spool and support 2.Spool is the integral body of being made up of valve plate 17, valve neck 15 and annulus 16, and valve neck 15 and annulus 16 are generally an one-piece parts in actual fabrication.Support 2, valve seat 28 and spool annulus 16 can be used plastic production, and valve plate 17 then adopts metal material making such as copper.Described unidirectional stop valve 1 places intake tunnel 14, with unidirectional blocking-up or connection intake tunnel 14.The top of support 2 is connected with the lower end of impeller box 3, and the lower end of support 2 connects valve seat 28, and spool (valve plate 17) utilizes deadweight vertically to be pressed on the valve seat 28, and the valve neck 15 of spool is linked in the center pit of support 2, can slide up and down.Anchor ring liquid sealing in the end cylindrical anchor ring of the valve plate 17 of spool and the top of valve seat 28.The annulus 16 of spool is linked in the endoporus of valve seat 28, can slide up and down.It is fixed that the weight of spool is generally come according to set discharge, opens unidirectional stop valve 1 in discharge during greater than 10L/h as need, and then the spool deadweight is 20～40 grams (concrete data based performance test is decided).Valve plate 17 is divided into two sections with intake tunnel 14, and the intake tunnel 14 on valve plate 17 tops communicates with the water inlet of being located at impeller box 3 bottoms, and the intake tunnel 14 of valve plate 17 bottoms communicates with the water inlet 13 of watch shell 10, and described screen pack 27 can be located at the bottom of valve seat 28.
The stop valve 1 of present embodiment is vertically arranged dead-weight spool, certainly, also can adopt the spool of spring compression type, and it is fixed that elastic force also comes according to set discharge.Stop valve also can laterally be installed in the intake tunnel 14, but effect is not as present embodiment.
Described bypass water channel 19 places on the outer wall of the outer wall of support 2 and impeller box 3.The import of bypass water channel 19 communicates with the intake tunnel 14 of stop valve 1 preceding (promptly by valve block 17 belows).The import of bypass water channel 19 can be in the state of opening all the time as previously mentioned.But its counting is more accurate when stop valve 1 is opened, the outer wall of described stop valve 1 spool can with the hole inwall liquid sealing of valve seat 28 belows, and can be communicated with the import of (intake tunnel 14 of valve plate 17 belows with) bypass water channel 19 being provided with on the wall of described spool when stop valve 1 is closed and when stop valve 1 unlatching, can close the through hole 18 of bypass water channel 19 imports.
The outlet of described bypass water channel 19 be located at highly corresponding impeller box 3 right side walls of impeller 5 on, i.e. the water column that bypass water channel 19 outlet is penetrated can directly be beaten on impeller 5 (blade).Bypass water channel 19 exits are provided with spout 4, the internal diameter of spout 4 less than the internal diameter of bypass water channel 19 to form pressure.Spout 4 endoporus can be the little taper hole of import large outlet.Described spout 4 can adopt special nozzle to be embedded in bypass water channel 19 outlet openings of impeller box 3 sidewalls, and at this moment, the internal diameter of spout 4 then refers to the internal diameter of nozzle, and at this moment, it is taper hole that spout 4 endoporus can present the endoporus that taper hole promptly refers to nozzle.Spout 4 also can be the through hole that directly is drilled on impeller box 3 sidewalls, but to adopt the special nozzle best results.
Referring to Fig. 2, and described spout 4 (nozzle) setting angle is down together, the tangent line that the center line of spout 4 and impeller box 3 cylindrical joinings are done and the formed angle β of the center line angle of spout 4 are generally 20～70 degree.The best is 40～50 degree, and in the power maximum of the water column impulsion impeller 5 of this angle ejection, counting is the most accurate when " drip ".
Claims (5)
1, a kind of high sensitivity watermeter of preventing water burglary, comprise watch shell (10), water inlet (13) and intake tunnel (14), water delivering orifice (26) and exhalant canal (25), impeller box (3) and impeller (5) and counting mechanism, it is characterized in that: it also comprises unidirectional stop valve (1) and bypass water channel (19), described unidirectional stop valve (1) places intake tunnel (14), with unidirectional blocking-up or connection intake tunnel (14); The preceding intake tunnel (14) of the import of described bypass water channel (19) and the valve block (17) of stop valve spool communicates, the outlet of described bypass water channel (19) is located on the sidewall with the highly corresponding impeller box of impeller (5) (3), described bypass water channel (19) exit is provided with spout (4), and the internal diameter of described spout (4) is less than the internal diameter of bypass water channel (19).
2, water meter according to claim 1 is characterized in that: the angle β angle that the tangent line that the center line of described spout (4) and impeller box (3) cylindrical joining are done and the center line of spout (4) form is 20～70 degree.
3, water meter according to claim 2 is characterized in that: described β angle is 40～50 degree.
4, water meter according to claim 1, it is characterized in that: the hole inwall liquid sealing of annulus (16) outer wall of the spool of described stop valve (1) and valve seat (28) below, the annulus of described spool (16) wall are provided with when stop valve (1) and can be communicated with (19) import of bypass water channel when closing and can close the through hole (18) of bypass water channel (19) import when stop valve (1) is opened.
5, according to any one described water meter in the claim 1～4, it is characterized in that: described spout (4) endoporus is the little taper hole of import large outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03248838 CN2660485Y (en) | 2003-09-17 | 2003-09-17 | High sensitive antitheft water flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03248838 CN2660485Y (en) | 2003-09-17 | 2003-09-17 | High sensitive antitheft water flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660485Y true CN2660485Y (en) | 2004-12-01 |
Family
ID=34327397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03248838 Expired - Fee Related CN2660485Y (en) | 2003-09-17 | 2003-09-17 | High sensitive antitheft water flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660485Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551731A (en) * | 2021-07-20 | 2021-10-26 | 山东远程仪表制造有限公司 | Water meter capable of remotely transmitting data |
-
2003
- 2003-09-17 CN CN 03248838 patent/CN2660485Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551731A (en) * | 2021-07-20 | 2021-10-26 | 山东远程仪表制造有限公司 | Water meter capable of remotely transmitting data |
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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 |