CN2125817U - Magnetic-resistant dry manetic transmission water meter - Google Patents
Magnetic-resistant dry manetic transmission water meter Download PDFInfo
- Publication number
- CN2125817U CN2125817U CN 92223182 CN92223182U CN2125817U CN 2125817 U CN2125817 U CN 2125817U CN 92223182 CN92223182 CN 92223182 CN 92223182 U CN92223182 U CN 92223182U CN 2125817 U CN2125817 U CN 2125817U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- water meter
- radome
- impeller
- shaft coupling
- 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.)
- Granted
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a magnetic-resistant dry magnetic transmission water meter which is an instrument used for metering the flow rate of drinking water, such as tap water. In the utility model, one layer or more layers of enclosed type shielding is or are arranged around a magnetic transmission coupling; a shielding cover is made of electrical pure iron materials. Consequently, the capacity of the magnetic-resistant dry magnetic transmission water meter to resist an external magnetic field is increased, the cost of the magnetic-resistant dry magnetic transmission water meter is reduced, and the range of use of the magnetic-resistant dry magnetic transmission water meter is widened.
Description
The invention belongs to flow measurement instrument, generally be used for measuring the flow of potable water such as tap water.
At present on the domestic industry or family the metering method of tap water is all adopted water meter.With regard to the principle of work of water meter, be that flowing water impacts impeller, promoting impeller shaft changes, and is delivered to sun gear shaft, forms counting mechanism by sun gear shaft and gear train transmission, shows the flow of flowing water on scale.Impeller and impeller shaft are installed in the impeller box; Device such as central gear, gear counting mechanism, scale, cloche is in gearcase.The water meter that utilizes this form to make at present has two types: be called wet-type meter and dry-type meter.Its impeller of wet-type meter, impeller shaft, central gear, gear counting mechanism, scale etc. all are immersed in the tap water, and promptly gearcase and impeller box inner chamber are full of tap water.Water in the gearcase is immobilising, and the time one is long, because gear corrosion or microorganism grow, the water in the gearcase chamber is contaminated, thereby has influence on the health of tap water.And the deposition of dirt on scale can influence reading again in the water.Another kind is old-fashioned dry-type meter, and tap water can not enter gearcase, and the power transmission between impeller shaft and the sun gear shaft adopts the mechanical shaft coupling of sealing.Like this, in transmission process, increase friction force, be directed at the metering misalignment.Therefore can not generally use, especially the more expensive area of tap water cost.
From middle nineteen seventies, owing to developing rapidly of magnetic material industry, industrial development countries such as Japan, Britain are applied to the magnetics technology in the water meter, dry type magnetic drives water meter of new generation occurred.Promptly utilize the magnetic force principle of crosslinking,, form magnetic and pass shaft coupling at impeller shaft and sun gear shaft axle head difference mounting permanent magnet.Like this, remedied the bigger shortcoming of enclosure-type machinery shaft coupling friction force, sensitivity greatly takes a turn for the better, and has become controlling the trend of water meter at present.Yet magnetic passes water meter and still has deficiency, disturbs when being subjected to external magnetic field (passing water meter placement permanent magnet as the artificial magnetic of pressing close to), intrinsic magnetic field or magnetic line of force distribution situation in the water meter are damaged, magnetic biography ability weakens, and the magnetic biography is malfunctioning when serious, is directed at magnetic biography water meter and counts less or do not count.Extensively adopt both at home and abroad at present magnetic is passed the shaft coupling shielding, slacken external magnetic field and disturb.Though the version of these shieldings has various ways such as annular, bell shape, the magnetic shaft coupling is said, all be individual layer and open shielding.The expensive beryllium of the employing that has not alloy material is made radome, but opposing external magnetic field effects of jamming is still not ideal enough.
The purpose of this utility model is at the problems referred to above, magnetic is passed water meter improve, and the ability that improves its opposing external magnetic field promptly improves the water meter technical feature, and reduces manufacturing cost.
The utility model is by impeller box (1), impeller (2), impeller shaft (3), last radome (5), central gear (6), counting mechanism (7), gearcase (8), scale (9) cloche (10), magnetic shaft coupling parts such as (11) constitute, two or more radomes have been it is characterized in that in magnetic shaft coupling (11) outer setting, in the middle of the radome that is provided with, have at least two radome cover mouths towards being opposite, and the edge of the edge of last radome (5) cover mouth and following radome (4) cover mouth or bottom surface are in contact with one another or are approaching, and magnetic shaft coupling (11) is formed one or more layers closed shielding.Following radome (4) is " U " type along the shape of axis profile, bottom centre's place's perforate, and the axle head of impeller shaft (3) device permanent magnet passes through from the hole, enters shielding space in the gearcase (8).Last radome (5), following radome (4) all adopt electrical pure iron to make.
Adopt one or more layers closed shield effectiveness fine to magnetic shaft coupling (11), simultaneously shielding material can adopt electrical pure iron, compared with use beryllium not alloy material manufacture, price is low to moderate 1/8～1/10.The usable range and the quantity of dry type magnetic biography water meter have been enlarged.
Description of drawings
Fig. 1. a kind of antimagnetic dry type magnetic passes water meter general assembly synoptic diagram
1. impeller box 2. impellers 3. impeller shafts
4. descend radome 6. central gears on the radome 5.
7. counting mechanism 8. gearcases 9. scales
10. cloche 11. magnetic shaft couplings
Shielding case structure synoptic diagram under Fig. 2
H. radome height
Embodiment
Get thickness and be 0.6～2 millimeter electrical pure iron, as trade mark D
4Thick t=1.5 millimeter utilizes punch die to make the following radome (4) that section shape is " U " in the punch press upper punch, diameter phi=56 millimeter, high h=9 millimeter, when injection moulding impeller box (1), will descend radome (4) to be embedded in the impeller box (1), make it to become one.The manufacturing of other parts and manufacturing and the installation of assembling with general magnetic biography water meter.Cover mouth edge inner face bottom following radome (4) that radome (5) is gone up in the assembling back is in contact with one another or is approaching, and magnetic shaft coupling (11) is formed multilayer, closed shielding.
Claims (3)
1, a kind of antimagnetic dry type magnetic passes water meter, by impeller box (1) impeller (2), impeller shaft (3), last radome (5), central gear (6), counting mechanism (7), gearcase (8), scale (9), cloche (10), magnetic shaft coupling parts such as (11) are formed, two or more radomes have been it is characterized in that in magnetic shaft coupling (11) outer setting, in the middle of the radome that is provided with, have at least two covers mouthful towards being opposite, and the edge of the edge of last radome (5) cover mouth and following radome (4) cover mouth or bottom surface are in contact with one another or are approaching, and magnetic shaft coupling (11) is formed one or more layers closed shielding.
2, pass water meter according to the described a kind of antimagnetic dry type magnetic of claim 1, radome (4) is " U " type along the shape of axis profile under it is characterized in that, the bottom centre place is porose, and the axle head of impeller shaft (3) device permanent magnet passes through from the hole, enters shielding space in the gearcase (8).
3, pass water meter according to the described a kind of antimagnetic dry type magnetic of claim 1, it is characterized in that radome (4.5) all adopts the electrical pure iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223182 CN2125817U (en) | 1992-05-26 | 1992-05-26 | Magnetic-resistant dry manetic transmission water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223182 CN2125817U (en) | 1992-05-26 | 1992-05-26 | Magnetic-resistant dry manetic transmission water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2125817U true CN2125817U (en) | 1992-12-23 |
Family
ID=4965948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92223182 Granted CN2125817U (en) | 1992-05-26 | 1992-05-26 | Magnetic-resistant dry manetic transmission water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2125817U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451569C (en) * | 2007-02-09 | 2009-01-14 | 宁波东海仪表水道有限公司 | Water meter of current rush prevention drive axle |
| CN102183279A (en) * | 2011-03-14 | 2011-09-14 | 江阴市立信智能设备有限公司 | Passive direct-reading type remote-transmission water meter |
| CN104220849A (en) * | 2012-08-10 | 2014-12-17 | 帕沃·艾多德维奇·麦呢科夫 | Water-meter counting unit and electric circuit for said water meter |
| CN106123986A (en) * | 2016-07-30 | 2016-11-16 | 广东智慧电子信息产业股份有限公司 | A kind of IC-card water control message accounting |
| CN110160592A (en) * | 2019-06-04 | 2019-08-23 | 成都市穆尔西仪表科技有限公司 | A kind of remote transmitting water meter of anti-electromagnetic interference |
-
1992
- 1992-05-26 CN CN 92223182 patent/CN2125817U/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451569C (en) * | 2007-02-09 | 2009-01-14 | 宁波东海仪表水道有限公司 | Water meter of current rush prevention drive axle |
| CN102183279A (en) * | 2011-03-14 | 2011-09-14 | 江阴市立信智能设备有限公司 | Passive direct-reading type remote-transmission water meter |
| CN102183279B (en) * | 2011-03-14 | 2012-11-07 | 江阴市立信智能设备有限公司 | Passive direct-reading type remote-transmission water meter |
| CN104220849A (en) * | 2012-08-10 | 2014-12-17 | 帕沃·艾多德维奇·麦呢科夫 | Water-meter counting unit and electric circuit for said water meter |
| CN106123986A (en) * | 2016-07-30 | 2016-11-16 | 广东智慧电子信息产业股份有限公司 | A kind of IC-card water control message accounting |
| CN110160592A (en) * | 2019-06-04 | 2019-08-23 | 成都市穆尔西仪表科技有限公司 | A kind of remote transmitting water meter of anti-electromagnetic interference |
| CN110160592B (en) * | 2019-06-04 | 2020-07-14 | 成都市穆尔西仪表科技有限公司 | Electromagnetic interference resistant remote water meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2125817U (en) | Magnetic-resistant dry manetic transmission water meter | |
| WO2007094954A1 (en) | Meter with integral register having no visual display of consumption | |
| DE102008035740A1 (en) | Magnetic inductive flow meter with a combined magnetic flux guide comprising Elektromagenteinheit | |
| GB2074391A (en) | Motor assembly | |
| US4241605A (en) | Flowmeter with magnetic coupling | |
| CA1160074A (en) | Unitary electromagnetic flowmeter with sealed coils | |
| CA2051545A1 (en) | Permanent magnet having high corrosion resistance, a process for making the same and a process for making a bonded magnet having high corrosion resistance | |
| US4760333A (en) | Crossed coil meter having concentrically wound magnetic shield | |
| CN2429819Y (en) | Dry water meter core with rotary wing | |
| CN209400029U (en) | Wet type direct-reading water meter | |
| CN212206206U (en) | Intelligent water meter movement with signaling device | |
| CN205981333U (en) | Mechanical type teletransmission water gauge induced magnetism needle that is just reversing | |
| CN206556726U (en) | A kind of novel fuel sensor | |
| CN2572354Y (en) | Leakage-resistant water meter | |
| CN2314353Y (en) | Pulse signal device for wet water meter | |
| CN208704820U (en) | A kind of electromechanics separate type remote transmitting water meter | |
| CN213515795U (en) | Remote transmission dry-type water meter | |
| CN2390185Y (en) | Domestic water-meter | |
| CN207280518U (en) | A kind of photo-electronic directly reading telemetering type cold-water meter | |
| CN201517934U (en) | Modified structure of embedded encoder | |
| CN211349474U (en) | Drive mechanism and automatic vending machine | |
| CN2188752Y (en) | Pipe type oil flow sensor | |
| CN220853712U (en) | Electromechanical separation type water meter | |
| CN212903395U (en) | Waterproof type thing networking teletransmission water gauge | |
| CN210833729U (en) | Dampproofing water gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |