CN108469280A - Mechanical pick-up device formula electronic water meter - Google Patents
Mechanical pick-up device formula electronic water meter Download PDFInfo
- Publication number
- CN108469280A CN108469280A CN201810654236.5A CN201810654236A CN108469280A CN 108469280 A CN108469280 A CN 108469280A CN 201810654236 A CN201810654236 A CN 201810654236A CN 108469280 A CN108469280 A CN 108469280A
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- China
- Prior art keywords
- impeller
- water
- water meter
- box
- movement
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 230000033001 locomotion Effects 0.000 claims abstract description 28
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 5
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 241001365789 Oenanthe crocata Species 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/28—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
-
- 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
Abstract
The present invention is mechanical pick-up device formula electronic water meter, by mechanical base table, and receives magnetic field signal and carries out circuit box two parts composition of computer disposal, the base table is made of the movement of generation water-flow signal and the shell of sealing water channel；Point upper and lower two parts in the circuit box, lower part is the magnetic-tunnel-effect sensor protected by Antimagnetic hood, and top is equipped with the main circuit board of lithium battery, is liquid crystal display on main circuit board top.Advantage：1）Table internal battery can work normally the more than ten years or more；2）It is not encroached on by moist working environment；There is anti-magnetic disturbance simultaneously, prevent illegal dismounting, the functions such as dust protection pollution；3）Movement ensures that accuracy of water meter is not influenced by variation in water pressure, and the sensitive wear-resisting, stabilization of speed of impeller, reading are accurate；4）It using antimagnetic gasket construction, is neither interfered by extraneous high-intensity magnetic field, and internal magnetic field is guided not generate suction-operated to the iron rust in water.
Description
Technical field
The present invention relates to a kind of mechanical pick-up device formula electronic water meters, belong to the fields of measurement of flow.
Background technology
The rotating speed flow-rate ratio of mechanical water meter and pulsed water meter and direct-reading water meter can only be a fixed ratio,
That is the gear ratio of water meter gear set.Critical component-single board computer circuit in electronic water meter, infringement most afraid of water.It is especially ultralow
The technology requirement of power consumption is not mentionleted alone into a drop water and causes the discharge current between positive and negative circuit to increase even working environment humidity increases
Greatly.Just it is enough that battery is made to exhaust in advance, remote transmitting water meter is allowed to fail；Secondly, the mode of sensor uses magnetic-tunnel-effect pipe at present.
Because the signal source of water meter is on the impeller in base table water, and sensor is placed in circuit in circuit box.Water is invaded in order to prevent
Evil, is separated by 2 bulkhead walls.The only magnetic field that signal can be transmitted normally is the most reliable.But magnetic field can adsorb the iron rust in water,
Block the rotation of impeller；Strong external magnetic field can interfere the work of internal sensor so that water meter cannot be measured normally.
The patent of invention that number of patent application is 201710465324.6 discloses a kind of mechanical pick-up device formula electronic water meter, carries
Supply that a kind of low energy consumption, anti-magnetic efficiency be higher, the preferable electronic water meter of sealing performance, however in actual use, because of impeller center
Hole is the hollow cavity that an inside diameter is more than lower exit port, since the proportion of mechanical pick-up device formula electronic water meter impeller mitigates
To after 1.05 grams/cc, when mechanical pick-up device formula electronic water meter, which is mounted on, to be tested on meter apparatus, valve is opened, and water flows into
When water meter inner cavity, impeller center hole only has 1 downward outlet, the residual air in the impeller center hole lighter than water most of
Impeller center hole top only can be gathered in；In air, mechanical pick-up device formula electronic water meter impeller total weight only has 5 grams；In water
In, mechanical pick-up device formula electronic water meter impeller gravity only has 0.25 gram.When the buoyancy that impeller center hole residual gas generates is more than
At 0.25 gram, push water meter turbine to uplink, the lower contacts with stainless steel top cover, in wheel rotation, impeller steel ball can be with
Stainless steel top cover generates larger frictional force.Since the size of the residual air volume in impeller center hole changes at random,
To which the frictional force that buoyancy generates impeller is also that can not determine, the velocity of rotation of impeller in a fluid is leveraged, is changed
The hydrodynamic performance of impeller is become so that wheel rotation rule changes, and causes the metering essence of mechanical pick-up device formula electronic water meter
Degree is also unstable；Meanwhile in the mechanical pick-up device formula electronic water meter structure, the magnetic field of the bar magnet generation of impeller insertion, to flowing
Water in iron rust suction-operated shielding, what is leaned on is the magnetic guiding cycle installed below impeller, and is found in actual use, is led
Magnetosphere reduces the upward magnetic field signal intensity of impeller bar magnet, is unfavorable for effect of the wheel rotation signal for sensor.
Invention content
The present invention provides a kind of mechanical pick-up device formula electronic water meter, purpose aims to solve the problem that present in existing electronic water meter
Drawbacks described above, the mechanical pick-up device formula electronic water meter that a kind of wheel speed is stable and wheel rotation signal is interference-free is provided.
Technical solution of the invention：Mechanical pick-up device formula electronic water meter, structure is by mechanical base table, and receives magnetic
Field signal and the circuit box two parts composition for carrying out computer disposal, movement and sealing of the base table by generation water-flow signal
The shell of water channel forms, and the gland of movement is by the head cover of nonmagnetic metal, the upper press cover of engineering plastics, lower cover composition, movement
Valve seat lower part be strainer mouth, valve connects impeller box, and bar magnet is embedded at the top of impeller in impeller box；It is characterized in that, described
It is embedding on upper press cover inner hole wall that there are one antimagnetic washers；The impeller is single thimble agate set, the small small steel ball structure of bar magnet, impeller
Stabilizer is inlayed in lower end, is set there are two symmetrical gas vent in the position vertical direction below the agate set of impeller；Described
Point upper and lower two parts in circuit box, lower part is the magnetic-tunnel-effect sensor protected by Antimagnetic hood, and top is equipped with lithium battery
Main circuit board is liquid crystal display on main circuit board top.
Advantages of the present invention：
1）The circuit design of the super low-power consumption of milliampere grade, table internal battery are changed without, and can work normally the more than ten years or more；
2）The structure of circuit box and outlet design, are not encroached on by moist working environment；There is anti-magnetic disturbance simultaneously, it is anti-illegally to tear open
It unloads, the functions such as dust protection pollution；
3）The design of movement ensures that accuracy of water meter is not influenced by variation in water pressure, the design of impeller ensure that it is sensitive it is wear-resisting,
Stabilization of speed, reading are accurate；Proportion is moved close to the density of water with flow rule；
4）It using antimagnetic gasket design anti-magnetic structure, is neither interfered by extraneous high-intensity magnetic field, and guides internal magnetic field not in water
Iron rust generates suction-operated.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of mechanical pick-up device formula electronic water meter.
Attached drawing 2 is the structural schematic diagram of mechanical base table.
Attached drawing 3 is cassette mechanism structure schematic diagram.
Attached drawing 4 is blade wheel structure schematic diagram.
Attached drawing 5 is circuit box structural schematic diagram.
1 in figure it is circuit box, 2 be base table, 3 be 485 bus outlet hoses, 4 is that pvc pipe connects, 5 is clamp nut, 6 is
Non-slip mat, 7 be impeller box, 8 be watchcase, 9 be valve seat, 10 be valve, 11 be steel pad, 12 be that be head cover, 12-2 be by gland, 12-1
Upper press cover, 12-3 are lower covers, 13 are impellers, 14 are weepers, 15 are water inlets, 16 are water outlets, 17 are valve seat strainer, 18
It is gasket, 19 be O-ring, 20 be steel ball, 21 be agate set, 22 be thimble, 23 be bar magnet, 24 is magnetic guiding cycle gas vent, 25
It is impeller body, 26 be stabilizer, 27 be box cover, 28 be plexiglass tent, 29 be face dash board, 30 be liquid crystal display, 31 is main
Circuit board, 32 be lithium battery, 33 be Antimagnetic hood, 34 be magnetic-tunnel-effect sensor, 35 be box base, 36 be screw-nut, 37
It is tight loop, 38 is antimagnetic washer.
Specific implementation mode
Mechanical pick-up device formula electronic water meter by mechanical base table, and receives magnetic field signal and carries out the electricity of computer disposal
Road box two parts composition, the base table are made of the movement of generation water-flow signal and the shell of sealing water channel；The circuit
Point upper and lower two parts in box, lower part is the magnetic-tunnel-effect sensor protected by Antimagnetic hood, and top is equipped with the main electricity of lithium battery
Road plate is liquid crystal display on main circuit board top.
The base table is made of the movement of generation water-flow signal and the shell of sealing water channel.
Movement valve seat lower part is strainer mouth, and valve connects impeller box；Bar magnet is embedded at the top of impeller in impeller box.
The impeller is single thimble agate set, and the small small steel ball structure of bar magnet, stabilizer is inlayed in the lower end of impeller；In impeller
Symmetrical gas vent there are two being set in the position vertical direction of agate set lower section.When flowing water enters water meter turbine inner cavity, impeller
Air in centre bore goes out impeller inner cavity from this pair of of row of exhausting-gas hole, to empty without remaining full of water in impeller center hole
Gas；Impeller floats under 0.25 constant grammes per square metre force effect on impeller box thimble, just only persevering when impeller rotates in flowing water
Fixed friction force effect, eliminates unstable interference, to ensure that the measuring accuracy of mechanical pick-up device formula electronic water meter
Stablize.
Lower part in the circuit box is the magnetic-tunnel-effect sensor protected by Antimagnetic hood, and top is equipped with lithium battery
Main circuit board, main circuit board top are liquid crystal displays.
Technical scheme of the present invention is further described below in conjunction with the accompanying drawings：
As shown in Figure 1, mechanical pick-up device formula electronic water meter, structure is by mechanical base table, and receives magnetic field signal and counted
Calculation machine processing circuit box two parts composition, the base table by generation water-flow signal movement and sealing water channel shell group
At；Point upper and lower two parts in the circuit box, lower part are the magnetic-tunnel-effect sensors protected by Antimagnetic hood, and top is dress
There is the main circuit board of lithium battery, is liquid crystal display on main circuit board top.
As shown in Figure 2,3, base table is measuring part of the mechanical pick-up device formula electronic water meter to flow.It is by generation flow
The movement of signal and the shell composition of sealing water channel.
The movement is the critical component of water meter measurement.Flow is flowed by the right side water inlet of watchcase in figure, from movement
Valve seat lower part strainer mouth pushes valve open and flows into impeller box.Wheel rotation in water jet propulsion impeller box is flowed out from impeller box top
The left side water outlet of watchcase in figure.The top of impeller is embedded with the high intensity small magnet stick of samarium-cobalt material.Wheel rotation, bar magnet production
Raw magnetic field also just rotates.Magnetic field is overturn, and is triggered the magnetic-tunnel-effect sensor in its top water meter circuit box, is generated pulse
Signal wakes up CPU work, counts cumulative water and stores.
When the flow for entering watchcase is varied down to 8 ls/h hereinafter, being not enough to push the valve of movement open, valve is closed.Flow
Impeller box all is flowed into from the aperture of valve seat wall, wheel rotation is pushed directly on, can accomplish " dripping just to walk ".Due to electrometer
Numerical expression water meter can be provided measures curve interpolation stoichiometric coefficient along impeller, so the small flow to drip can also be by the coefficient to drip
Calculate flow.
When water meter outlet conduit Close All, when there is no stationary flow.Hydraulic pressure can fluctuating change in pipeline；Or neighbours open
Fire hose valve is opened, water hammer generates.Impeller will be rotated irregularly.Water meter circuit box inner sensor equally generates pulse signal.By
The Cycle accurate of wheel rotation can be calculated to Millisecond in CPU, so as to accurately judge that, impeller is uniform motion also right and wrong
Uniform motion.Uniform motion, which just counts, to add up, and non-uniform movement is just abandoned.It is generated so as to avoid variation in water pressure or water hammer
" accidentally walking ".
Gland is by the head cover of stainless steel, the upper press cover that engineering plastics make, lower cover composition.Head cover and upper press cover are watchcases
Seal member suitable for reading, it can bear the pressure of 2MPa.Lower cover is due in the water in water meter seal member, when hydraulic pressure becomes
When change, it is constituted with impeller box not by influence of hydraulic pressure, is kept fixed the metering water channel of shape.So as to avoid inner pressed water
Disadvantage of the table by pressure variations influence accuracy of water meter.An embedded antimagnetic washer shields impeller magnetic on upper press cover inner hole wall
The downward magnetic field of stick, to flowing water below impeller iron rust will not by the downward magnetic field suction of impeller bar magnet, to
While magnetic field equally downward to impeller bar magnet reaches shield effectiveness, and it is strong to weaken the upward magnetic field signal of impeller bar magnet
Degree.
As shown in figure 4, impeller is the most important component of water meter measurement.Its rate of specific gravity and friction coefficient is to influence metering
The major factor of precision.Impeller mechanism takes single thimble agate set as shown in Figure 5, the structure of the small small steel ball of bar magnet, significantly
Reduce the volume than great material.To ensure that impeller entirety proportion mitigates to 1.065 grams/cc, close to water
Proportion.It is stainless steel to make rotatable parts material again（Thimble）To agate（Set）, stainless steel（Steel ball）To stainless steel（Head cover）.Ensure
The friction coefficient of moving component is small, and rigidity and wear-resisting property are high.The bar magnet of samarium-cobalt material is small, and magnetic field intensity is up to
2200 Gausses.It ensure that the redundancy in magnetic field needed for the sensor of circuit box reaches 4-5 times.The depth of long neck bore ensures impeller
The magnetic field intensity at lower section flowing water position is almost nil.Avoid the cause of dry-type meter impeller magnet adsorption iron rust obstruction impeller movement
Order drawback.Stabilizer is inlayed in the lower end of impeller, and impeller, which is swung, when mass-flow being avoided to impact influences accuracy of water meter.
As shown in figure 5, the lower part in circuit box is the magnetic-tunnel-effect sensor protected by Antimagnetic hood, top is equipped with lithium
The main circuit board of battery, main circuit board top are liquid crystal displays；The structure of circuit box provides waterproof, antimagnetic, and tamper is dust-proof
Etc. functions, the single board computer in circuit box is super low-power consumption technology, and the power consumption of mechanical pick-up device formula electronic water meter only has 8 microamperes.It is interior
The lithium battery set can theoretically use 45 years or more, and the water meter of scene operation also reaches 10 years or more at present.
Mechanical pick-up device formula electronic water meter, the kilowatt meter reading-out system that Internet of Things meter reading case is constituted, all using battery powered, just
It can accomplish to copy a table everyday, use 6-12 or more.And direct-reading water meter must use external AC power, ability
Ensure data automatic remote transmission.
Claims (3)
1. mechanical pick-up device formula electronic water meter, structure is by mechanical base table and receives magnetic field signal and carries out computer disposal
Circuit box two parts form, and the base table is made of the movement of generation water-flow signal and the shell of sealing water channel, the pressure of movement
Lid is by the head cover of nonmagnetic metal, and the upper press cover of engineering plastics, lower cover composition, the valve seat lower part of movement is strainer mouth, valve
Impeller box is connect, bar magnet is embedded at the top of the impeller in impeller box；
It is characterized in that：It is embedding on the upper press cover inner hole wall that there are one antimagnetic washers；The impeller is single thimble agate set, small magnetic
Stabilizer is inlayed in the small steel ball structure of stick, the lower end of impeller, impeller agate set below position vertical direction on set there are two
Symmetrical gas vent.
2. mechanical pick-up device formula electronic water meter according to claim 1, it is characterized in that being divided to upper and lower two in the circuit box
Part, lower part are the magnetic-tunnel-effect sensors protected by Antimagnetic hood, and top is equipped with the main circuit board of lithium battery, main circuit board
It is liquid crystal display on top.
3. mechanical pick-up device formula electronic water meter according to claim 1, it is characterised in that：Flow on the right side of watchcase by entering water
Mouth flows into, and from the valve seat lower part strainer mouth of movement, pushes valve open and flows into impeller box；Wheel rotation in water jet propulsion impeller box,
The left side water outlet of watchcase in figure is flowed out from impeller box top；Wheel rotation, the magnetic field that bar magnet generates also just rotates, in triggering
Magnetic-tunnel-effect sensor in Fang Shuibiao circuit box generates pulse signal, wakes up CPU work, counts cumulative water and stores；
When the flow for entering watchcase is varied down to 8 ls/h hereinafter, being not enough to push the valve of movement open, valve is closed, and flow is whole
Impeller box is flowed into from the aperture of valve seat wall, wheel rotation is pushed directly on, since electronic counting-type water meter can be provided along impeller
Curve interpolation stoichiometric coefficient is measured, so the small flow to drip can also calculate flow by the coefficient to drip；
When water meter outlet conduit Close All, when not having stationary flow, hydraulic pressure can fluctuating change or neighbours' unlatching water in pipeline
Imperial valve, water hammer generate, and impeller will be rotated irregularly, and water meter circuit box inner sensor equally generates pulse signal；Due to CPU
Can to the Cycle accurate of wheel rotation calculate to Millisecond, so as to accurately judge that, impeller be uniform motion also right and wrong at the uniform velocity
Movement, uniform motion, which just counts, to add up, and non-uniform movement is just abandoned, the mistake generated so as to avoid variation in water pressure or water hammer
It walks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654236.5A CN108469280A (en) | 2018-06-22 | 2018-06-22 | Mechanical pick-up device formula electronic water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654236.5A CN108469280A (en) | 2018-06-22 | 2018-06-22 | Mechanical pick-up device formula electronic water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108469280A true CN108469280A (en) | 2018-08-31 |
Family
ID=63260004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810654236.5A Pending CN108469280A (en) | 2018-06-22 | 2018-06-22 | Mechanical pick-up device formula electronic water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108469280A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038639A (en) * | 1996-07-22 | 1998-02-13 | Toyo Keiki Kk | Flowmeter |
| CN2618147Y (en) * | 2003-06-02 | 2004-05-26 | 姚平壤 | Intelligent water-saving telemetering watermeter |
| CN2852064Y (en) * | 2005-06-16 | 2006-12-27 | 曹世来 | Three pole type non-magnetic sampling flow transducer |
| KR20120088942A (en) * | 2011-02-01 | 2012-08-09 | 경성제닉스(주) | A Separated-type Electronic Water Meter |
| KR101265150B1 (en) * | 2012-09-26 | 2013-06-04 | 주식회사 금성테크 | Electronic water meter |
| CN107328451A (en) * | 2017-06-19 | 2017-11-07 | 南京水门电子有限公司 | Mechanical pick-up device formula electronic water meter |
| CN107345827A (en) * | 2017-06-19 | 2017-11-14 | 南京水门电子有限公司 | Suitable for underwater external-compression type mechanical pick-up device formula electronic water meter |
| CN206919954U (en) * | 2017-06-19 | 2018-01-23 | 南京水门电子有限公司 | Suitable for underwater external-compression type mechanical pick-up device formula electronic water meter |
| CN206919950U (en) * | 2017-06-19 | 2018-01-23 | 南京水门电子有限公司 | Anti- iron rust water meter turbine |
| CN208296905U (en) * | 2018-06-22 | 2018-12-28 | 南京水门电子有限公司 | Mechanical pick-up device formula electronic water meter |
-
2018
- 2018-06-22 CN CN201810654236.5A patent/CN108469280A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038639A (en) * | 1996-07-22 | 1998-02-13 | Toyo Keiki Kk | Flowmeter |
| CN2618147Y (en) * | 2003-06-02 | 2004-05-26 | 姚平壤 | Intelligent water-saving telemetering watermeter |
| CN2852064Y (en) * | 2005-06-16 | 2006-12-27 | 曹世来 | Three pole type non-magnetic sampling flow transducer |
| KR20120088942A (en) * | 2011-02-01 | 2012-08-09 | 경성제닉스(주) | A Separated-type Electronic Water Meter |
| KR101265150B1 (en) * | 2012-09-26 | 2013-06-04 | 주식회사 금성테크 | Electronic water meter |
| CN107328451A (en) * | 2017-06-19 | 2017-11-07 | 南京水门电子有限公司 | Mechanical pick-up device formula electronic water meter |
| CN107345827A (en) * | 2017-06-19 | 2017-11-14 | 南京水门电子有限公司 | Suitable for underwater external-compression type mechanical pick-up device formula electronic water meter |
| CN206919954U (en) * | 2017-06-19 | 2018-01-23 | 南京水门电子有限公司 | Suitable for underwater external-compression type mechanical pick-up device formula electronic water meter |
| CN206919950U (en) * | 2017-06-19 | 2018-01-23 | 南京水门电子有限公司 | Anti- iron rust water meter turbine |
| CN208296905U (en) * | 2018-06-22 | 2018-12-28 | 南京水门电子有限公司 | Mechanical pick-up device formula electronic water meter |
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