CN108896119A - A kind of intelligence self-adjustable high-precision size water flow amount detecting device - Google Patents
A kind of intelligence self-adjustable high-precision size water flow amount detecting device Download PDFInfo
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- CN108896119A CN108896119A CN201810482439.0A CN201810482439A CN108896119A CN 108896119 A CN108896119 A CN 108896119A CN 201810482439 A CN201810482439 A CN 201810482439A CN 108896119 A CN108896119 A CN 108896119A
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- ring
- rotary shaft
- water flow
- quill
- detecting device
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- 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of intelligent self-adjustable high-precision size water flow amount detecting device, out rotor is provided in installation cavity；Out rotor is provided centrally with quill；Inner impeller is provided in quill；Lower tooth torus is arranged in quill lower end；Quill upper end is provided with ring gear；Ring gear is engaged with driven gear；Driven gear connects second driving shaft；Rotary shaft is arranged in inner impeller center；Rotary shaft top passes through spline structure and the first transmission axis connection；Rotary shaft lower end is provided with water blockoff lid；Water blockoff lid lower end is provided with thin axis；Hairspring is provided on thin axis；Thin axis lower end is socketed in lifting tube；Connecting rod is provided on lifting drum outer wall；Connecting rod is connect with water blockoff ring；Vertical steel bracket ring is arranged in water blockoff ring upper surface；Lifting tube is arranged in fixed cylinder；Bulky spring is provided in fixed cylinder；Card slot is provided in fixed cylinder.The present invention can simultaneously be monitored small-large flow, and the scope of application is big, and monitoring result is accurate, stable and reliable operation.
Description
Technical field
The present invention relates to intellectual monitoring instrument technical field, specially a kind of intelligent self-adjustable high-precision size water flow
Detection device.
Background technique
Intelligence instrument instrument refers to for continuously measuring temperature, pressure, flow, object in discrete manufacture and process industry equipment
The instrument and instrument of the physical parameters such as the variables such as position, or measurement object space, inclination, rotation and material composition.Including passing
Sensor and its system, intelligent temperature, pressure, flow, level gauging instrument and meter, intelligent electric meter, intellectual water meter, etc. monitorings dress
It sets.Present water flow monitoring table is all but existing flowmeter or flow using traditional flowmeter or flow water meter
All there is a defect in water meter, when the flowed fluctuation in pipeline is larger, is limited to existing flowmeter blade wheel structure, leads to not
Accurately monitoring outflow, so that measurement result is inaccurate.It is all the setting bypass branch on pipeline currently in order to solving the problems, such as this
Large capacity meter and motor-operated control valve is arranged in pipe on supervisor, small flowmeter and motor-operated control valve is arranged on bypass branch pipe, then
Cooperate solenoid valve control motor-operated control valve by different size of flowmeter to open supervisor or bypass branch according to the size of flow
Pipe realizes the accurate measurements of flow, and not only pipeline setting is complicated for this mode, at high cost, simultaneously because control panel part increases
It is more, cause circuit stability poor, monitoring result is also unstable, is easy to appear failure.
Summary of the invention
The purpose of the present invention is in view of the above problems, providing a kind of intelligent self-adjustable high-precision size water flow amount detection device
It sets, it can simultaneously be monitored small-large flow, and the scope of application is big, and monitoring result is accurate, stable and reliable operation.
In order to achieve the above object, the technical solution adopted by the present invention is that：A kind of intelligence self-adjustable high-precision size water flow
Detection device, it includes installation cavity, and installation cavity top side is provided with water inlet, and lower end side is provided with water outlet, institute
It states and is vertically arranged with out rotor in installation cavity；The out rotor is provided centrally with quill；It is coaxially arranged in described sleeve pipe axis
Inner impeller；Lower tooth torus is arranged in described sleeve pipe axis lower end；Described sleeve pipe axis upper end outer wall is provided with ring gear；The annular tooth
Wheel is engaged with driven gear；The driven gear connects second driving shaft；The inner impeller is provided centrally with rotary shaft；The rotation
Shaft top passes through spline structure and the first transmission axis connection；First transmission shaft, second driving shaft respectively with it is corresponding suddenly
You connect sensor sensing；The rotary shaft lower end is provided with the water blockoff lid for blocking quill；Water blockoff lid lower end is set
It is equipped with thin axis；Hairspring is provided on the thin axis；The thin axis lower end is socketed in lifting tube；On the lifting drum outer wall
It is even to be provided with connecting rod；The out rotor bottom is provided with the water blockoff ring for blocking out rotor；The connecting rod and water blockoff ring
Connection；Water blockoff ring upper surface is provided with the vertical steel bracket ring with the cooperation of lower tooth torus；The lifting tube is arranged in fixed cylinder；
Bulky spring is provided in the fixed cylinder；The card slot with connecting rod cooperation is provided on the fixed drum outer wall.
Further, described sleeve pipe axis upper surface is provided with gear ring；The rotary shaft upper end is provided with and gear
The ring gear platen of ring cooperation.
Further, it is connected between the gear platen and rotary shaft by the fixed link being uniformly arranged.
Further, the rotation shaft end head is evenly arranged with the spline tooth of strip in a ring；First transmission shaft
Lower end is provided with the bore for being socketed rotary shaft；The bore bottom surface is provided with the spline pair tooth with spline tooth cooperation.
Further, the out rotor is arranged in the helical blade on quill by annular array and forms；The inner impeller
It is made of the helical blade of annular array setting on the rotary shaft.
Further, the water blockoff lid is cone shell shape；The circular cone concave face of the water blockoff lid is towards in quill
Side.
Further, first transmission shaft, second driving shaft connect after both passing through installation cavity roof with corresponding inductive disks
It connects；The inductive disks are arranged in seal box；The seal box is disc-shape；The seal box side wall is bilayer；It is described suddenly
You are arranged in interlayer sensor；The Hall sensor is connected by the circuit system of electric wire and upper end.
Further, the installation cavity both ends are provided with mounting rack；Described sleeve pipe axis both ends are arranged on mounting rack.
Beneficial effects of the present invention：
1, present invention employs coaxial interior out rotors to realize independent water flow induction rotation, and small-large flow can be supervised
It surveys, the scope of application is big, and monitoring result is more accurate, stable and reliable operation, and since the signal of interior out rotor rotation is to pass through
What independent circuits induction mechanism generated, do not obscure together, therefore the simpler stabilization of signal processing, flow monitoring are more steady
It is fixed reliable.
2, the interior out rotor lower end in the present invention is respectively provided with water blockoff lid and water blockoff ring, can be according to different flow size certainly
Row opens and closes, and flow hour water blockoff ring is closed, and guarantees that water flow all passes through inner impeller, improves the monitoring accuracy of small flow,
When flow is big, water blockoff ring is opened, and guarantees the monitoring accuracy of big flow, when flow is too small, water blockoff lid is automatically closed, and is prevented
Water phenomenon steathily.
3, relative to traditional fan blade or prismatic blade, the helical blade that the interior out rotor in the present invention is all made of is in ring
The setting of shape array reacts sensitiveer to water flow, and flow monitoring precision is higher.
Detailed description of the invention
Fig. 1 is detailed internal configuration schematic diagram of the invention.
Fig. 2 is the fit structure schematic diagram of out rotor and inner impeller in the present invention.
Fig. 3 is the structural schematic diagram of inner impeller.
Fig. 4 is the bottom surface bottom view of water blockoff ring.
Fig. 5 is the overlooking structure diagram of water blockoff ring.
Fig. 6 is the overlooking structure diagram of fixed cylinder.
Fig. 7 is the present invention looks up structural representation of gear platen.
Fig. 8 is the spline tooth structural schematic diagram on rotary shaft top.
Fig. 9 is the bore and spline pair toothing schematic diagram of the first transmission shaft lower end.
Figure 10 is the structural schematic diagram of inductive disks.
In figure：1, water outlet；2, inner impeller；3, quill；4, out rotor；5, mounting rack；6, driven gear；7, it second passes
Moving axis；8, gear ring；9, lower tooth torus；11, electronic box；12, water inlet；13, ring gear；14, installation cavity；15, lower installation
Frame；16, water blockoff ring；17, water blockoff lid；18, connecting rod；19, bulky spring；20, fixed cylinder；21, lifting tube；23, thin axis；24, thin
Spring；25, the first transmission shaft；26, rotary shaft；27, gear platen；28, seal box；29, inductive disks；30, circuit system；31,
Sealing ring；32, Hall sensor；36, magnet；37, vertical steel bracket ring；201, card slot；271, fixed link；261, spline tooth；251,
Bore；252, spline pair tooth.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing to the present invention into
Row detailed description, the description of this part be only it is exemplary and explanatory, should not have any limitation to protection scope of the present invention
Effect.
As shown in Fig. 1-Figure 10, specific structure of the invention is：A kind of intelligence self-adjustable high-precision size water flow detection
Device, it includes installation cavity 14, and the 14 top side of installation cavity is provided with water inlet 12, and lower end side is provided with water outlet 1,
Out rotor 4 is vertically arranged in the installation cavity 14；The out rotor 4 is provided centrally with quill 3；It is same in described sleeve pipe axis 3
Axis is provided with inner impeller 2；Lower tooth torus 9 is arranged in 3 lower end of described sleeve pipe axis；3 upper end outer wall of described sleeve pipe axis is provided with annular tooth
Wheel 13；The ring gear 13 is engaged with driven gear 6；The driven gear 6 connects second driving shaft 7；In the inner impeller 2
The heart is provided with rotary shaft 26；26 top of rotary shaft is connect by spline structure with the first transmission shaft 25；First transmission
Axis 25, second driving shaft 7 incude with corresponding Hall sensor 32 respectively to be connected；26 lower end of rotary shaft is provided with for blocking up
The firmly water blockoff lid 17 of quill 3；17 lower end of water blockoff lid is provided with thin axis 23；Hairspring 24 is provided on the thin axis 23；
23 lower end of thin axis is socketed in lifting tube 21；Connecting rod 18 is evenly arranged on 21 outer wall of lifting tube；The siphonal lobe
It takes turns 4 bottoms and is provided with water blockoff ring 16 for blocking out rotor 4；The connecting rod 18 is connect with water blockoff ring 16；The water blockoff ring
16 upper surfaces are provided with the vertical steel bracket ring 37 cooperated with lower tooth torus 9；The lifting tube 21 is arranged in fixed cylinder 20；It is described solid
Bulky spring 19 is provided in safety barrel 20；The card slot 201 cooperated with connecting rod 18 is provided on 20 outer wall of fixed cylinder.
In order to accelerate the starting speed of out rotor 4, the accuracy of flow monitoring, the setting of 3 upper surface of described sleeve pipe axis are improved
There is gear ring 8；26 upper end of rotary shaft is provided with the ring gear platen 27 cooperated with gear ring 8.
Preferably, it is connected between the gear platen 27 and rotary shaft 26 by the fixed link 271 being uniformly arranged.Gear pressure
Disk 27 is annular, can be convenient that water flow is smooth after the gear platen 27 to be entered in quill 3, improves the patency of water flow.
In order to promote rotary shaft 26 and the first transmission shaft 25 smooth automatic disengaging and can engage, improve reaction accuracy and
Stability is driven, 26 end of rotary shaft is evenly arranged with the spline tooth 261 of strip in a ring；First transmission shaft 25
Lower end is provided with the bore 251 for being socketed rotary shaft 26；251 bottom surface of bore is provided with the flower cooperated with spline tooth 261
Key pair tooth 252.
In order to improve impeller to the reaction speed of water flow, the monitoring accuracy to flow is improved, the out rotor 4 is by annular
The composition of the helical blade on quill 3 is arranged in array；The spiral in rotary shaft 26 is arranged in by annular array for the inner impeller 2
Blade composition.
In order to improve inner impeller to the induction precision of water flow impact pressure, the water blockoff lid 17 is cone shell shape；It is described
The circular cone concave face of water blockoff lid 17 is towards the inside of quill 3.Water blockoff lid 17 can be further improved after using cone shell to water flow
The induction precision of impact force improves the susceptibility to water flow, is convenient for the conversion of out rotor and inner impeller.
Preferably, first transmission shaft 25, second driving shaft 7 both pass through after 14 roof of installation cavity with corresponding inductive disks
29 connections；The inductive disks 29 are arranged in seal box 28；The seal box 28 is disc-shape；28 side wall of seal box is
It is double-deck；The Hall sensor 32 is arranged in interlayer；The Hall sensor 32 passes through the circuit system 30 of electric wire and upper end
Connection.28 side wall of seal box is arranged to double-layer structure, so that inductive disks 29 are in different sealants from Hall sensor 32
In, therefore Hall sensor 32 and the circuit of cooperation can be opened with water segregation completely, improve the waterproofness of monitoring device, be stablized
Property.
Preferably, 14 both ends of installation cavity are provided with mounting rack 5；3 both ends of described sleeve pipe axis are arranged on mounting rack 5.
The specifically used principle of the present invention：
Water flow passes through total process：Water flow enters from water inlet 12, the water outlet after inner impeller 2 and out rotor 4 monitor, from lower end
1 flows out.
The monitoring principle of small flow water flow：For water flow after the entrance of water inlet 12, the water flow into out rotor 4 can be by bottom
Water blockoff ring 16 is blocked, and can not be passed through；And the water flow of sleeve pipe axis 3 pass through inner impeller 2 when, can drive inner impeller 2 rotate, internal lobe
Wheel 2 drives the first transmission shaft 25 rotation on top, so that the inductive disks 29 in electronic box 11 is driven to rotate, the magnet 36 in inductive disks
Occur to incude with Hall sensor 32 and be passed to signal by electric wire in the circuit system 30 of upper end.
Since small flow water flow impact pressure is small, water blockoff lid 17 can not be pushed；The vertical steel bracket ring 37 of 16 top surface of water blockoff ring
It is engaged with the lower tooth torus 9 of 3 lower end of quill always, so that out rotor 4 can not rotate.
With the increase of water flow, flow pushes water blockoff lid 17 to continue to decline, promotes water blockoff lid 17 when water flow increases to
After dropping to preset distance, hairspring 24 is compressed, and thin axis 23 pushes down on the decline of lifting tube 21, and bulky spring 19 is also compressed,
Lifting tube 21 drives water blockoff ring 16 to decline, and vertical steel bracket ring 37 is disengaged from lower tooth torus 9, and since water blockoff ring 16 declines, makes
The water flow obtained in out rotor 4 can flow downward out, and thus out rotor 4 be driven to rotate, and due to the decline of rotary shaft 26, so that rotation
The spline structure on 26 top of axis unclamps, and the first transmission shaft 25 is separated from rotary shaft 26, and inner impeller 2 dallies, at this time the first transmission
Axis 25 stops rotating, and circuit system 30 can not receive the rotating signal of inner impeller 2；And the rotation of out rotor 4 can pass through annular
Gear 13 drives driven gear 6 to rotate, and driven gear 6 drives second driving shaft 7 to rotate, and second driving shaft 7 drives the another of upper end
An outer inductive disks 29 rotate, and the magnet 36 and Hall sensor 32 in inductive disks occur induction and is passed to signal by electric wire
In the circuit system 30 at end.
Since the out rotor 4 in the present invention can voluntarily adjust starting according to different water flow sizes from inner impeller 2, flow
Start out rotor 4 when measuring big, although inner impeller 2 is rotating, idle running；Flow hour, out rotor 4 stop rotating, inner impeller 2
Starting, transmits a signal to circuit system 30；The independent monitoring that small-large flow is realized due to using coaxial interior out rotor 4, because
This monitoring is more reliable and more stable, and monitoring result is more accurate, and since circuit system is the signal of two impellers of individual reception
, therefore signal processing is simpler reliable and stable.
Moreover, stop rotating under state in out rotor 4,4 lower end of the out rotor water ring 16 that is blocked is blocked, therefore water at this time
Stream flows out after all having to pass through inner impeller 2, therefore the testing result of small flow water flow can be very accurate and reliable.
In order to further increase the draw property of apparatus of the present invention, gear platen 27 is provided in rotary shaft 26, when
After water flow is more than the monitoring range of inner impeller 2, when rotary shaft 26 and the first transmission shaft 25 are disengaged from, due to inner impeller 2
It is quickly dallying, and out rotor 4 is unable to reach full gear just by static starting, gear platen 27 and 3 upper end of quill is upper at this time
Gear ring 8 engages, and can quickly increase the rotation speed of out rotor 4, namely the acceleration time of out rotor 4 can be improved, mention
Monitoring accuracy of the height to flood flow.
There is also the advantages of an accident to be by the present invention：It can prevent user from carrying out water steathily, when user opens tap very
Hour, water flow, which can be oozed slowly, to be come, but actually water meter is not run, therefore water is freely used；And it is of the invention
Device is due to being provided with water blockoff ring 16 and water blockoff lid 17, so if tap is opened very little by user, it is desirable to which water flow is slow at water droplet
When slug flow goes out, since flow rate of water flow is inadequate, the pressure of hairspring 24 is greater than the impact force of water flow, and water blockoff lid 17 can not be rushed to open
Namely water flow be plugged in the present apparatus, will not flow out and, therefore cannot achieve water steathily.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.
Used herein a specific example illustrates the principle and implementation of the invention, the explanation of above example
It is merely used to help understand method and its core concept of the invention.The above is only a preferred embodiment of the present invention, it answers
When pointing out due to the finiteness of literal expression, and objectively there is unlimited specific structure, for the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement, retouching or variation can also be made, can also incited somebody to action
Above-mentioned technical characteristic is combined in the right way；These improve retouching, variation or combination, or the not improved structure by invention
Think and technical solution directly applies to other occasions, is regarded as protection scope of the present invention.
Claims (8)
1. a kind of intelligence self-adjustable high-precision size water flow amount detecting device, it includes installation cavity（14）, the installation cavity（14）
Top side is provided with water inlet（12）, lower end side is provided with water outlet（1）, which is characterized in that the installation cavity（14）It is interior
It is vertically arranged with out rotor（4）；The out rotor（4）It is provided centrally with quill（3）；Described sleeve pipe axis（3）Interior coaxial arrangement
There is inner impeller（2）；Described sleeve pipe axis（3）Lower tooth torus is arranged in lower end（9）；Described sleeve pipe axis（3）Upper end outer wall is provided with annular
Gear（13）；The ring gear（13）With driven gear（6）Engagement；The driven gear（6）Connect second driving shaft（7）；
The inner impeller（2）It is provided centrally with rotary shaft（26）；The rotary shaft（26）Top passes through spline structure and the first transmission shaft
（25）Connection；First transmission shaft（25）, second driving shaft（7）Respectively with corresponding Hall sensor（32）Induction connection；
The rotary shaft（26）Lower end is provided with for blocking quill（3）Water blockoff lid（17）；The water blockoff lid（17）Lower end setting
There is thin axis（23）；The thin axis（23）On be provided with hairspring（24）；The thin axis（23）Lower end is socketed in lifting tube（21）It is interior；
The lifting tube（21）Connecting rod is evenly arranged on outer wall（18）；The out rotor（4）Bottom is provided with for blocking siphonal lobe
Wheel（4）Water blockoff ring（16）；The connecting rod（18）With water blockoff ring（16）Connection；The water blockoff ring（16）Upper surface be provided with
Lower tooth torus（9）The vertical steel bracket ring of cooperation（37）；The lifting tube（21）It is arranged in fixed cylinder（20）It is interior；The fixed cylinder（20）
Inside it is provided with bulky spring（19）；The fixed cylinder（20）It is provided on outer wall and connecting rod（18）The card slot of cooperation（201）.
2. a kind of intelligent self-adjustable high-precision size water flow amount detecting device according to claim 1, which is characterized in that institute
State quill（3）Upper surface is provided with gear ring（8）；The rotary shaft（26）Upper end is provided with and gear ring（8）Cooperation
Ring gear platen（27）.
3. a kind of intelligent self-adjustable high-precision size water flow amount detecting device according to claim 2, which is characterized in that institute
State gear platen（27）With rotary shaft（26）Between pass through the fixed link that is uniformly arranged（271）Connection.
4. a kind of intelligent self-adjustable high-precision size water flow amount detecting device according to claim 1, which is characterized in that institute
State rotary shaft（26）End is evenly arranged with the spline tooth of strip in a ring（261）；First transmission shaft（25）Lower end is set
It is equipped with for being socketed rotary shaft（26）Bore（251）；The bore（251）Bottom surface is provided with and spline tooth（261）Cooperation
Spline pair tooth（252）.
5. a kind of intelligent self-adjustable high-precision size water flow amount detecting device according to claim 1, which is characterized in that institute
State out rotor（4）It is arranged by annular array in quill（3）On helical blade composition；The inner impeller（2）By annular array
It is arranged in rotary shaft（26）On helical blade composition.
6. a kind of intelligent self-adjustable high-precision size water flow amount detecting device according to claim 1, which is characterized in that institute
State water blockoff lid（17）For cone shell shape；The water blockoff lid（17）Circular cone concave face towards quill（3）Inside.
7. a kind of intelligent self-adjustable high-precision size water flow amount detecting device according to claim 1, which is characterized in that institute
State the first transmission shaft（25）, second driving shaft（7）Both pass through installation cavity（14）After roof with corresponding inductive disks（29）Connection；Institute
State inductive disks（29）It is arranged in seal box（28）It is interior；The seal box（28）For disc-shape；The seal box（28）Side wall is
It is double-deck；The Hall sensor（32）It is arranged in interlayer；The Hall sensor（32）Pass through the circuit system of electric wire and upper end
System（30）Connection.
8. a kind of intelligent self-adjustable high-precision size water flow amount detecting device according to claim 1, which is characterized in that institute
State installation cavity（14）Both ends are provided with mounting rack（5）；Described sleeve pipe axis（3）Both ends are arranged in mounting rack（5）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810482439.0A CN108896119B (en) | 2018-05-18 | 2018-05-18 | A kind of intelligence self-adjustable high-precision size water flow amount detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810482439.0A CN108896119B (en) | 2018-05-18 | 2018-05-18 | A kind of intelligence self-adjustable high-precision size water flow amount detecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108896119A true CN108896119A (en) | 2018-11-27 |
| CN108896119B CN108896119B (en) | 2019-10-29 |
Family
ID=64342997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810482439.0A Active CN108896119B (en) | 2018-05-18 | 2018-05-18 | A kind of intelligence self-adjustable high-precision size water flow amount detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108896119B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282694A (en) * | 2020-09-24 | 2021-01-29 | 福建新达阀门有限公司 | Well head oil return control device |
| CN112362122A (en) * | 2020-11-13 | 2021-02-12 | 四川泛华航空仪表电器有限公司 | Controllable mass flow meter of rotational speed |
| CN113237523A (en) * | 2021-05-11 | 2021-08-10 | 韩军蕊 | Water meter |
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| JPS5574418A (en) * | 1978-12-01 | 1980-06-05 | Ricoh Elemex Corp | Water supply gauge |
| CN87206029U (en) * | 1987-03-31 | 1988-01-13 | 陈林 | Double-impeller water meter |
| CN1202618A (en) * | 1997-06-17 | 1998-12-23 | 安徽省石台县煤气仪表总厂 | Axial flow type gas meter |
| CN2531362Y (en) * | 2001-12-11 | 2003-01-15 | 哈尔滨工程大学 | Metering on-off integral water meter |
| CN1544889A (en) * | 2003-11-27 | 2004-11-10 | 赵铁兵 | Precise flow meter |
| CN2802453Y (en) * | 2005-06-07 | 2006-08-02 | 田恩全 | Liquid micro-flow meter |
| CN205228572U (en) * | 2015-11-28 | 2016-05-11 | 怀化建南电子科技有限公司 | Seal structure of intelligence water gauge |
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|---|---|---|---|---|
| JPS5574418A (en) * | 1978-12-01 | 1980-06-05 | Ricoh Elemex Corp | Water supply gauge |
| CN87206029U (en) * | 1987-03-31 | 1988-01-13 | 陈林 | Double-impeller water meter |
| CN1202618A (en) * | 1997-06-17 | 1998-12-23 | 安徽省石台县煤气仪表总厂 | Axial flow type gas meter |
| CN2531362Y (en) * | 2001-12-11 | 2003-01-15 | 哈尔滨工程大学 | Metering on-off integral water meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282694A (en) * | 2020-09-24 | 2021-01-29 | 福建新达阀门有限公司 | Well head oil return control device |
| CN112362122A (en) * | 2020-11-13 | 2021-02-12 | 四川泛华航空仪表电器有限公司 | Controllable mass flow meter of rotational speed |
| CN113237523A (en) * | 2021-05-11 | 2021-08-10 | 韩军蕊 | Water meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108896119B (en) | 2019-10-29 |
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