CN111141351B - Water meter movement of drip metering high-precision internet of things and base meter thereof - Google Patents
Water meter movement of drip metering high-precision internet of things and base meter thereof Download PDFInfo
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- CN111141351B CN111141351B CN202010065435.XA CN202010065435A CN111141351B CN 111141351 B CN111141351 B CN 111141351B CN 202010065435 A CN202010065435 A CN 202010065435A CN 111141351 B CN111141351 B CN 111141351B
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- water inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 215
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- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 34
- 238000013016 damping Methods 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 239000010431 corundum Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000006855 networking Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
- G01F1/56—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 electric or magnetic effects
-
- 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
- G01F15/005—Valves
-
- 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
- G01F15/14—Casings, e.g. of special material
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a dripping metering high-precision internet of things water meter movement and a base table thereof. The water inlet control device comprises an impeller box, an impeller, a water stop cover plate, a magnetic ring, a water inlet control sleeve and a control module; the impeller box comprises a box body, the box body is provided with an impeller accommodating cavity, a water-stop cover plate is covered on the impeller accommodating cavity, and the impeller comprises an impeller rotating shaft and blades; the water inlet control suite comprises a water filtering net, a one-way valve plate and a drip water inlet component; the water filtering net comprises a filter cover, a valve plate groove is arranged in the inner cavity of the filter cover, a box body is provided with a connecting water inlet channel and a water outlet channel, and filtering holes are distributed in the valve plate groove; the drip water inlet assembly comprises at least one flow guide block, and flow guide channels are arranged on the flow guide blocks; the magnetic ring is fixed on the impeller, and the control module comprises more than two sensors and an MCU module. The invention can meet the drip metering requirement and has low starting flow through the matching use of the one-way valve plate and the drip water inlet component, and the sensor is used for collecting and counting, so that the whole structure is simple and intelligent.
Description
Technical Field
The invention relates to the field of water meters, in particular to a dripping metering high-precision Internet of things water meter movement and a base meter thereof.
Background
The water meter is a metering device which is forcibly installed in China and is used for metering water and settling water charge, most of the water meters are mechanical water meters at present, manual meter reading is needed, time and labor are wasted, and the intelligent water meter is driven along with the development of the Internet, the Internet of things, big data and leakage control technology. At present, the intelligent water meter is low in movement precision, low in range ratio (R), and generally adopts a scheme of superposing electronic communication boxes by a mechanical base meter, so that the fine and personalized requirements of treatment of various water supply units and leakage loss cannot be realized, and particularly, the drip metering requirement of a local area can not be met.
Disclosure of Invention
The invention aims at: the utility model provides a overcome above shortcoming and provide a measurement high accuracy thing networking water gauge movement of dripping and basic table thereof, this movement and basic table are through the cooperation of check valve piece and dropping liquid subassembly of intaking and use, have can satisfy the measurement requirement of dripping, low start flow's characteristics, gather the count through the sensor moreover, and overall structure is simplified and intelligent, provides the measurement core for intelligent water gauge.
The invention is realized by the following technical scheme:
Scheme one:
The utility model provides a high accuracy thing networking water gauge movement of measurement of dripping which characterized in that: the water inlet control device comprises an impeller box, an impeller, a water stop cover plate, a magnetic ring, a water inlet control sleeve and a control module;
The impeller box comprises a box body, an impeller accommodating cavity with an open top end is arranged in the box body, a sealing cover of the water-stop cover plate is arranged on the top end opening of the impeller accommodating cavity, the impeller is arranged in the impeller accommodating cavity, the impeller comprises an impeller rotating shaft and a plurality of blades, the impeller rotating shaft is rotatably connected between the bottom of the impeller accommodating cavity and the bottom of the water-stop cover plate, the blades are sequentially arranged on the peripheral wall of the impeller rotating shaft at intervals along the same circumferential direction, and the blades gradually incline to a direction deviating from the rotating advancing direction of the impeller in the process of extending from the peripheral wall of the impeller rotating shaft to a direction far away from the impeller rotating shaft;
The water inlet control suite comprises a water filtering net, a one-way valve plate and a drip water inlet assembly; the water filtering net comprises a filter cover sleeved on the periphery of the lower part of the box body, a valve plate groove recessed downwards is formed in the bottom surface of the inner cavity of the filter cover, a water inlet channel communicated between the lower part of the impeller accommodating cavity and the inner cavity of the filter cover is formed in the box wall of the lower part of the impeller box, and the water inlet channel is gradually inclined to the advancing side direction of the impeller in the rotating movement direction in the process of extending from the outer channel opening to the inner channel opening; the upper box wall of the box body is provided with a plurality of water outlet channels communicated between the upper part of the impeller accommodating cavity and the outer part of the box wall of the box body, the bottom of the valve block groove is distributed with a plurality of filtering holes communicated between the outer part of the filter cover and the inner cavity of the filter cover, and the one-way valve block comprises a valve block convex block movably matched and installed in the valve block groove and an annular valve block flange which is annularly arranged at the outer periphery of the upper end of the valve block convex block and extends outwards; the bottom of the valve plate flange is lapped on the bottom surface of the inner cavity of the filter cover positioned at the periphery of the opening above the valve plate groove;
The drip water inlet assembly comprises at least one guide block fixedly arranged on the inner side of the filter cover wall, the guide block extends from the middle position of the inner side of the filter cover wall to the inner cavity and passes through a corresponding water inlet channel on the box wall of the impeller box to enter the impeller accommodating cavity, guide channels extending from the outer side of the filter cover wall to the inner side end surface of the guide block are arranged on the guide block, the extending direction of the guide channels is obliquely arranged with the radial direction of the impeller rotating shaft, and the inclined direction enables the inner side channel opening of the guide channels to face the advancing side of the impeller rotating motion direction;
The magnetic ring is coaxially and fixedly sleeved on an impeller rotating shaft of the impeller and can synchronously rotate along the impeller rotating shaft, the control module comprises more than two sensors which are distributed at intervals along the circumferential direction coaxial with the impeller rotating shaft and fixedly installed on the water-stop cover plate, each sensor is used for synchronously collecting magnetic field change signals generated by the magnetic ring in the impeller rotating process and converting the magnetic field change signals into electric pulse signals to be output outwards, the control module further comprises an MCU module, the MCU module is simultaneously connected with each sensor and used for receiving the electric pulse signals output by each sensor to calculate the volume value of water flow according to the signals, and the sensors can be Hall sensors or reed pipes.
In order to ensure the smoothness of the rotation of the impeller, the impeller further comprises a thimble shaft, a rotating matching piece, a lower shaft sleeve, an upper rotating shaft and an upper rotating shaft sleeve;
The upper end of the thimble shaft is provided with a conical part which is inclined from the outer peripheral wall to the axis direction close to the thimble shaft in the upward extension process, the top of the conical part is provided with a spherical crown surface, the symmetrical central axis of the spherical crown surface coincides with the axis of the thimble shaft, the lower shaft sleeve fixing plug is arranged in the lower end of the impeller shaft and coaxially and rotatably sleeved on the outer periphery of the upper part of the thimble shaft, the rotating matching piece is fixedly arranged in the middle of the lower shaft sleeve, the bottom center of the rotating matching piece is provided with an upward concave rotating groove, the groove surface of the rotating groove of the rotating matching piece is the spherical crown surface and is matched and pressed on the spherical crown surface at the top of the thimble shaft in a pushing mode, so that the rotating matching piece can coaxially rotate relative to the thimble shaft, and the symmetrical central axis of the spherical crown surface of the rotating groove of the rotating matching piece is coaxial with the impeller shaft and the spherical crown surface of the rotating groove is larger than the spherical crown surface of the top of the thimble shaft;
The upper rotating shaft sleeve is coaxially and fixedly arranged in the water-stop cover plate body, an upper rotating shaft sleeve hole which extends along the axial direction and is downwards opened is formed in the upper rotating shaft sleeve, and the upper rotating shaft is fixedly arranged in the middle of the upper end of the impeller rotating shaft and upwards extends to be rotationally sleeved in the upper rotating shaft sleeve hole of the upper rotating shaft sleeve, so that the impeller rotating shaft can coaxially rotate relative to the upper rotating shaft sleeve through the upper rotating shaft.
In order to prevent iron-containing impurities in water from being adsorbed on the magnetic ring to influence the normal operation of the water meter, the magnetic ring is coaxially and fixedly sleeved on the periphery of the upper rotating shaft and is hermetically arranged in the upper end of the impeller rotating shaft, and the impeller further comprises a magnetic conduction sheet which is coaxially sleeved on the periphery of the upper rotating shaft and is positioned below the magnetic ring and used for sealing the magnetic field of the lower half part of the magnetic ring.
In order to increase the service life of the running fit, the running fit is made of corundum material.
Preferably, each blade is in a cycloid shape, the bottom of the impeller accommodating cavity is provided with a plurality of cycloid damping ribs I which are sequentially and alternately distributed along the same circumferential direction, each cycloid damping rib I is gradually inclined towards the direction of rotating and advancing the impeller in the process of extending from the center of the bottom of the impeller accommodating cavity to the side cavity wall of the impeller accommodating cavity, and each cycloid damping rib I is gradually inclined towards the direction of rotating and advancing the impeller in the process of extending upwards from the bottom of the impeller accommodating cavity; the lower end face of the water stop cover plate is provided with a plurality of cycloid-shaped damping ribs II which are sequentially distributed at intervals along the same circumferential direction, each cycloid-shaped damping rib II is gradually inclined towards the rotating advancing direction of the impeller in the process of extending from the center of the lower end face of the water stop cover plate to the peripheral edge direction of the water stop cover plate, and each cycloid-shaped damping rib II is gradually inclined towards the rotating advancing direction of the impeller in the process of extending downwards from the lower end face of the water stop cover plate.
Preferably, the middle part of the upper end surface of the one-way valve plate is provided with a counter weight installation groove which is sunken downwards, and the water inlet control suite further comprises a counter weight block installed in the counter weight installation groove.
In order to facilitate the guiding and positioning of the one-way valve block in the starting and stopping process, valve block guide posts which are sequentially distributed at intervals along the circumferential direction of the surrounding valve block groove and extend upwards from the bottom are arranged on the lower end surface of the inside of the filter cover, and valve block mounting holes which are sleeved on the valve block guide posts and can be matched and guided with the valve block guide posts are arranged on the valve block flange of the one-way valve block; the bottom of the counterweight installation groove is provided with a counterweight guide column extending upwards from the bottom, and the counterweight block is provided with a counterweight installation hole which is sleeved on the counterweight guide column and can be matched and guided with the counterweight guide column. The balancing weight and the one-way valve plate can also be locked and matched by self-tapping screws.
Preferably, the aperture of the outer side channel opening of the diversion channel is larger than that of the inner side channel opening; the water outlet channel gradually inclines to the advancing side direction of the rotating movement direction of the impeller in the process of extending from the inner channel opening to the outer channel opening.
Preferably, the number of the diversion blocks is more than two and the diversion blocks are distributed at equal intervals along the same circumferential direction surrounding the center of the inner cavity of the filter cover.
Scheme II:
The application scheme one drip water metering high-precision internet of things water meter base table of the drip water metering high-precision internet of things water meter movement is characterized in that: the water meter is characterized by further comprising a watchcase, wherein a movement accommodating cavity is formed in the watchcase, the movement accommodating cavity comprises a watchcase water inlet cavity at the bottom and a watchcase water outlet cavity at the middle, a water inlet pipe for communicating the outside with the watchcase water inlet cavity at the bottom of the movement accommodating cavity is formed in one side of the bottom of the watchcase, a water outlet pipe for communicating the outside with the watchcase water outlet cavity at the middle of the movement accommodating cavity is formed in one side of the middle of the watchcase, the dripping metering high-precision internet of things water meter movement is fixedly arranged in the movement accommodating cavity, and the watchcase water inlet cavity at the bottom of the movement accommodating cavity and the watchcase water outlet cavity at the middle are mutually isolated through the matched contact of the dripping metering high-precision internet of things water meter movement outer peripheral wall and the movement accommodating cavity inner peripheral wall; the filtering holes and the diversion channels are communicated with the water inlet cavity of the meter shell positioned outside the water meter core of the drip metering high-precision internet of things, and the water outlet channel is communicated with the water outlet cavity of the meter shell positioned outside the water meter core of the drip metering high-precision internet of things.
In order to ensure the tightness of the base table, the outer periphery of the upper part of the impeller box is provided with an annular outer flange which protrudes outwards along the radial direction of the impeller rotating shaft and surrounds the center of the impeller rotating shaft, the inner peripheral wall of the movement accommodating cavity is also provided with an annular inner flange which extends inwards along the radial direction close to the axis of the impeller rotating shaft, the annular outer flange is lapped above the annular inner flange, and a sealing ring is further arranged between the bottom of the annular outer flange and the top of the annular inner flange.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention provides a dripping metering high-precision internet of things water meter movement and a base table thereof, wherein the movement and the base table are matched with each other through a one-way valve plate and a dripping water inlet assembly, so that the dripping metering requirement can be met, the starting flow is low, a sensor is adopted for collecting and counting, the whole structure is simplified and intelligent, and the metering core is provided for an intelligent water meter;
2. according to the drip metering high-precision internet of things water meter core and the base table thereof, the magnetic field of the lower half part of the magnetic ring is sealed by the magnetic conduction sheet, so that iron-containing impurities in water are prevented from being adsorbed on the magnetic ring to influence the normal operation of the water meter;
3. According to the water meter movement of the water drop metering high-precision internet of things and the base meter thereof, the rotating matching piece is made of corundum materials, so that the service life of the rotating matching piece is greatly prolonged, and the upper end and the lower end of the rotating matching piece are respectively sleeved with the shaft sleeve, so that the smoothness of the rotating matching piece in working is ensured;
4. according to the dripping metering high-precision internet of things water meter movement and the base table thereof, the bottom of the impeller accommodating cavity is provided with the cycloid-shaped damping ribs I, each cycloid-shaped damping rib I gradually inclines to the rotating advancing direction of the impeller to form the counter flow inclined plane I in the process of extending upwards from the bottom of the impeller accommodating cavity, the cycloid rotation direction of the cycloid-shaped damping ribs I is opposite to that of the cycloid-shaped blades, the damping cutting-in and stopping action time is prolonged, the defect that the traditional linear ribs generate pulsation when the impeller rotates at a low speed (namely in a small flow state) is overcome, and when water flow pushes the impeller to rotate, the cycloid-shaped ribs generate continuous, stable, smooth and flexible damping to the impeller in the whole course, so that the impeller continuously rotates at a constant speed and stably, and reliably guarantees magnetic induction output pulse signals; the lower end face of the water stop cover plate is provided with a plurality of cycloid damping ribs II, each cycloid damping rib II gradually inclines towards the rotating advancing direction of the impeller in the process of downwards extending from the lower end face of the water stop cover plate to form a windward inclined plane II, the cycloid rotating direction of the cycloid damping ribs II is opposite to the cycloid rotating direction of the cycloid blades, the damping cutting-in and stopping action time is prolonged, the defect that the traditional linear ribs generate pulsation when the impeller rotates at a high speed (namely in a high flow state) is overcome, small vortex can be generated by the cycloid damping ribs II during water outlet, the acceleration rotation of the impeller is prevented, the rotation speed of the impeller is reduced, the impeller continuously rotates at a constant speed and stably, the error curve of the water meter is flat, the metering precision is improved, the friction abrasion is reduced, the service life of the water meter is prolonged, and meanwhile, the reliable guarantee is provided for magnetic induction output pulse signals;
5. According to the drip metering high-precision internet of things water meter core and the base table thereof, the valve block guide column is arranged on the lower end surface of the inside of the filter cover, so that the axial guiding and positioning functions of starting and stopping of a single valve block are achieved; the bottom of the counterweight installation groove is provided with a counterweight guide column extending upwards and used for fixing the riveting counterweight block; the balancing weight is made of stainless steel or electroplated copper, and the size and the weight of the balancing weight are set according to the flow point for controlling the opening of the drip metering one-way valve plate;
6. The drip metering high-precision internet of things water meter movement and the base table thereof provided by the invention, wherein the water inlet control sleeve member can form an independent sleeve member, and the independent sleeve member can be matched with other movements for use, so that the requirements of low initial flow and drip metering performance are met;
7. According to the drip metering high-precision internet of things water meter movement and the base meter thereof, when the unidirectional valve plate falls under gravity, water cannot be reversely fed, so that the phenomena of rotation and idling of the water meter can be effectively reduced, and the water meter can be prevented from being artificially and maliciously reversely installed;
8. According to the dripping metering high-precision internet of things water meter movement and the base meter thereof, provided by the invention, more than two flow guide blocks are arranged, so that the rotation of the impeller can be more stable, and the stability of the movement is improved.
9. The water meter core of the water drop metering high-precision internet of things and the base table thereof provided by the invention have the advantages of simple, compact, practical and reliable structure, small starting quantity, high precision, wide range ratio, strong universality, convenience in installation and long service life, and can meet the requirements of fine management and individuation of leakage control of various water supply units.
Drawings
FIG. 1 is a schematic three-dimensional structure of a first embodiment;
FIG. 2 is a vertical cross-sectional view of the first embodiment;
FIG. 3 is an exploded view of the first embodiment;
fig. 4 is a front view of the first embodiment;
FIG. 5 is a cross-sectional view of A-A of FIG. 4;
FIG. 6 is a schematic three-dimensional structure of the waterproof cover plate according to the first embodiment;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a schematic view of a three-dimensional structure of an impeller box according to the first embodiment;
FIG. 9 is a schematic three-dimensional structure of a impeller box according to the first embodiment;
FIG. 10 is a schematic view of a three-dimensional structure of a water-blocking cover plate and an impeller according to an embodiment;
FIG. 11 is a schematic three-dimensional structure of a water-blocking cover plate according to an embodiment;
FIG. 12 is a schematic three-dimensional structure of an impeller according to the first embodiment;
FIG. 13 is a vertical cross-sectional view of FIG. 12;
FIG. 14 is an exploded view of a water screen, a check valve plate and a counterweight according to the first embodiment;
FIG. 15 is a schematic three-dimensional structure of a check valve sheet according to the first embodiment;
FIG. 16 is a schematic view showing a three-dimensional structure of a water filter screen according to the first embodiment;
Fig. 17 is a vertical sectional view of the second embodiment;
Fig. 18 is a front view of the third embodiment;
FIG. 19 is a cross-sectional view of B-B of FIG. 18;
fig. 20 is a schematic three-dimensional structure of a water filter net in the third embodiment.
Description of the reference numerals: 1-impeller box, 11-box body, 12-impeller accommodation cavity, 13-water inlet channel, 14-water outlet channel, 15-cycloidal damping rib, 151-valve plate groove, 53-filter hole, 54-valve plate guide post, 6-one-way valve plate, 61-bump, 62-valve plate flange, 63-counterweight mounting groove, 64-valve plate mounting hole, 65-counterweight guide post, 7-drip water inlet component, 71-guide channel, 72-guide block, 8-counterweight block, 81-mounting hole, 9-91-housing water inlet cavity, 91-housing water outlet cavity, 912-housing water inlet cavity, 912-housing water outlet cavity, 93-housing water inlet channel, 912-housing water outlet cavity, 912-housing water inlet channel, 3-water-blocking cover plate, 31-cycloidal damping rib, 51-filter cover, 52-valve plate groove, 53-filter hole, 54-valve plate guide post, 6-one-way valve plate, 61-bump, 62-valve plate flange, 63-counterweight mounting groove, 64-valve plate mounting hole, 65-counterweight guide post, 7-drip water inlet component, 71-guide channel, 72-counterweight block, 8-counterweight block, 81-mounting hole, 9-91-housing water inlet channel, 912-housing water outlet cavity, and 94-housing water outlet channel, 912-housing water inlet channel, and water outlet channel.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
embodiment one:
As shown in fig. 1-16, a water meter movement of a drip metering high-precision internet of things, which is characterized in that: the water inlet control device comprises an impeller box 1, an impeller 2, a water stop cover plate 3, a magnetic ring 4, a water inlet control sleeve and a control module;
The impeller box 1 comprises a box body 11, an impeller accommodating cavity 12 with an open top end is arranged in the box body 11, a waterproof cover plate 3 is sealed and arranged on the top end opening of the impeller accommodating cavity 12, an impeller 2 is arranged in the impeller accommodating cavity 12, the impeller 2 comprises an impeller rotating shaft 21 and a plurality of blades 22, the impeller rotating shaft 21 is rotatably connected between the bottom of the impeller accommodating cavity 12 and the bottom of the waterproof cover plate 3, the blades 22 are sequentially and alternately arranged on the peripheral wall of the impeller rotating shaft 21 along the same circumferential direction at intervals, and the blades 22 gradually incline to a direction deviating from the rotating progress of the impeller 2 in the process that the peripheral wall of the impeller rotating shaft 21 is positioned to extend to a direction far away from the impeller rotating shaft 21;
the water inlet control suite comprises a water filtering net 5, a one-way valve plate 6 and a drip water inlet component 7; the water filtering net 5 comprises a filter cover 51 sleeved on the periphery of the lower part of the box body 11, a valve plate groove 52 recessed downwards is arranged on the bottom surface of the inner cavity of the filter cover 51, a water inlet channel 13 communicated between the lower part of the impeller accommodating cavity 12 and the inner cavity of the filter cover 51 is arranged on the lower box wall of the lower part of the box body 11 of the impeller box 1, and the water inlet channel 13 gradually inclines to the advancing side direction of the rotating movement direction of the impeller 2 in the process of extending from the outer channel opening to the inner channel opening; the upper box wall of the box body 11 is provided with a plurality of water outlet channels 14 which are communicated between the upper part of the impeller accommodating cavity 12 and the outer part of the box wall of the box body 11, the bottom of the valve block groove 52 is distributed with a plurality of filter holes 53 which are communicated between the outer part of the filter cover 51 and the inner cavity of the filter cover 51, and the one-way valve block 6 comprises a valve block convex block 61 which is movably matched and arranged in the valve block groove 52 and an annular valve block flange 62 which is annularly arranged on the outer periphery of the upper end of the valve block convex block 61 and extends outwards; the bottom of the valve plate flange 62 is lapped on the bottom surface of the inner cavity of the filter cover 51 positioned at the periphery of the opening above the valve plate groove 52;
The drip water inlet assembly 7 comprises at least one guide block 72 fixedly arranged on the inner side of the cover wall of the filter cover 51, wherein the guide block 72 extends from the middle position of the inner side of the cover wall of the filter cover 51 to the inner cavity and passes through the corresponding water inlet channel 13 on the box wall of the impeller box 1 to enter the impeller accommodating cavity 12, the guide blocks 72 are respectively provided with a guide channel 71 extending from the outer side of the cover wall of the filter cover 51 to the inner side end surface of the guide block 72, the extending direction of the guide channels 71 is inclined with the radial direction of the impeller rotating shaft 21, and the inclined direction leads the inner side channel opening of the guide channels 71 to face the advancing side of the rotating movement direction of the impeller 2;
The magnetic ring 4 is coaxially and fixedly sleeved on the impeller rotating shaft 21 of the impeller 2 and can synchronously rotate along with the impeller rotating shaft 21, the control module comprises more than two sensors a which are distributed at intervals along the circumferential direction coaxial with the impeller rotating shaft 21 and fixedly arranged on the water-stop cover plate 3, each sensor a is used for synchronously collecting magnetic field change signals generated by the magnetic ring 4 in the rotation process of the impeller 2 and converting the magnetic field change signals into electric pulse signals to be output outwards, the control module further comprises an MCU module, the MCU module is simultaneously connected with each sensor a and is used for receiving the electric pulse signals output by each sensor a to calculate the volume value of water flow according to the signals, and the sensors a can be Hall sensors or reed pipes.
As shown in fig. 3, 6, 12 and 13, in order to ensure the smoothness of the rotation of the impeller, the impeller 2 further comprises a thimble shaft 23, a rotating fitting 24, a lower shaft sleeve 25, an upper rotating shaft 26 and an upper rotating shaft sleeve 27;
The ejector pin shaft 23 is coaxially and fixedly arranged at the bottom of the impeller accommodating cavity 12 and extends upwards, a conical part 231 which is inclined from the outer peripheral wall to the axial direction close to the ejector pin shaft 23 in the upwards extending process is arranged at the upper end of the ejector pin shaft 23, a spherical crown surface is arranged at the top of the conical part 231, the symmetrical central axis of the spherical crown surface coincides with the axial line of the ejector pin shaft 23, the lower shaft sleeve 25 is fixedly plugged in the lower end of the impeller rotating shaft 21 and coaxially and rotatably sleeved on the outer periphery of the upper part of the ejector pin shaft 23, the rotary matching piece 24 is fixedly arranged in the middle of the lower shaft sleeve 25, an upwards concave rotary groove 241 is arranged at the bottom center of the rotary matching piece 24, the groove surface of the rotary groove 241 of the rotary matching piece 24 is a spherical crown surface and is matched and pressed on the spherical crown surface at the top of the ejector pin shaft 23 in a pushing mode, so that the rotary matching piece 24 can coaxially rotate relative to the ejector pin shaft 23, and the symmetrical central axis of the spherical crown surface of the rotary groove 241 of the rotary matching piece 24 is coaxial with the impeller rotating shaft 21, and the spherical crown surface diameter of the spherical crown surface is larger than that of the spherical crown surface at the top of the ejector pin shaft 231;
The upper rotating shaft sleeve 27 is coaxially and fixedly arranged in the water-stop cover plate 3, an upper rotating shaft sleeve hole 271 which extends along the axial direction and is downwards opened is arranged in the upper rotating shaft sleeve 27, and the upper rotating shaft 26 is fixedly arranged in the middle of the upper end of the impeller rotating shaft 21 and upwards extends into the upper rotating shaft sleeve hole 271 which is rotatably sleeved in the upper rotating shaft sleeve 27, so that the impeller rotating shaft 21 can coaxially rotate relative to the upper rotating shaft sleeve 27 through the upper rotating shaft 26.
As shown in fig. 3 and 13, in order to prevent the iron-containing impurities in the water from being adsorbed onto the magnetic ring to affect the normal operation of the water meter, the magnetic ring 4 is coaxially and fixedly sleeved on the periphery of the upper rotating shaft 26 and is hermetically arranged in the upper end of the impeller rotating shaft 21, and the impeller 2 further comprises a magnetic conducting sheet 28 coaxially sleeved on the periphery of the upper rotating shaft 26 and positioned below the magnetic ring 4 and used for sealing the magnetic field of the lower half part of the magnetic ring 4.
In order to increase the service life of the running fit, the running fit 24 is made of corundum material.
As shown in fig. 5-11, preferably, each vane 22 is in a cycloid shape, the bottom of the impeller accommodating cavity 12 is provided with a plurality of cycloid-shaped damping ribs 15 sequentially and alternately distributed along the same circumferential direction, each cycloid-shaped damping rib 15 gradually inclines towards the direction of rotation and advancing of the impeller 2 in the process of extending from the bottom center of the impeller accommodating cavity 12 to the side cavity wall direction of the impeller accommodating cavity 12, so as to form a windward slope one 151 as shown in fig. 5-8, and each cycloid-shaped damping rib one 15 gradually inclines towards the direction of rotation and advancing of the impeller 2 in the process of extending upwards from the bottom of the impeller accommodating cavity 12; the lower end face of the water stop cover plate 3 is provided with a plurality of cycloid-shaped damping ribs 31 which are sequentially distributed at intervals along the same circumferential direction, each cycloid-shaped damping rib 31 is gradually inclined towards the rotating advancing direction of the impeller 2 in the process of extending from the center of the lower end face of the water stop cover plate 3 to the peripheral edge direction of the water stop cover plate 3, and each cycloid-shaped damping rib 31 is gradually inclined towards the rotating advancing direction of the impeller 2 in the process of extending downwards from the lower end face of the water stop cover plate 3 so as to form a second windward slope 311 shown in fig. 10-11.
Preferably, a weight mounting groove 63 recessed downwards is formed in the middle of the upper end face of the one-way valve plate 6, and the water inlet control sleeve further comprises a weight 8 mounted in the weight mounting groove 63.
In order to facilitate the guiding and positioning of the unidirectional valve plate in the start-stop process, the lower end surface of the interior of the filter cover 51 is provided with valve plate guiding columns 54 which are sequentially distributed at intervals along the circumferential direction of the surrounding valve plate groove 52 and extend upwards from the bottom, and the valve plate flange 62 of the unidirectional valve plate 6 is provided with valve plate mounting holes 64 which are sleeved on the valve plate guiding columns 54 and can be matched and guided with the valve plate guiding columns 54; the bottom of the counterweight mounting groove 63 is provided with a counterweight guide post 65 extending upwards from the bottom, and the counterweight 8 is provided with a counterweight mounting hole 81 which is sleeved on the counterweight guide post 65 and can be matched and guided with the counterweight guide post 65. The balancing weight 8 and the one-way valve plate 6 can also be locked and matched by self-tapping screws.
Preferably, the diameter of the outer passage opening of the diversion passage 71 is larger than that of the inner passage opening; the water outlet channel 14 gradually inclines to the forward direction of the rotation movement direction of the impeller 2 in the process of extending from the inner channel opening to the outer channel opening.
Embodiment two:
As shown in fig. 17, a drip metering high-precision internet of things water meter base meter according to the first embodiment is characterized in that: the water dripping metering high-precision internet of things water meter movement is fixedly arranged in the movement accommodating cavity 91, and the water dripping metering high-precision internet of things water meter movement peripheral wall and the cooperation contact of the movement accommodating cavity 91 inner peripheral wall enable the water casing inlet cavity 911 at the bottom of the movement accommodating cavity 91 and the middle water casing outlet cavity 912 at the middle to be isolated from each other; the filtering holes 53 and the diversion channels 71 are communicated with the water inlet cavity 911 of the watchcase positioned outside the movement of the drip metering high-precision internet of things water meter, and the water outlet channel 14 is communicated with the water outlet cavity 912 of the watchcase positioned outside the movement of the drip metering high-precision internet of things water meter.
As shown in fig. 17, in order to ensure the tightness of the base table, the upper outer periphery of the impeller case 1 is provided with an annular outer flange 16 protruding outward in the radial direction of the impeller rotating shaft 21 and disposed around the center of the impeller rotating shaft 21, the inner peripheral wall of the movement accommodating chamber 91 is further provided with an annular inner flange 94 extending inward in the radial direction near the axis of the impeller rotating shaft 21, the annular outer flange 16 is overlapped above the annular inner flange 94, and a sealing ring 10 is disposed between the bottom of the annular outer flange 16 and the top of the annular inner flange 94.
The working principle and the process are as follows: the water in the pipeline flows into the water inlet pipe 92 of the meter case 9 into the water inlet cavity 911 under the meter case, the water with larger flow rate of normal water flows into the water inlet cavity 911 under the meter case from the filter holes 53 at the bottom of the water filter net 5, the one-way valve plate 6 is jacked up under the action of the water flow rate and the pressure, the water flows into the cavity inside the filter cover 51, flows into the water inlet channel 13 at the lower part of the impeller box 1, pushes the impeller 2 to rotate, is pressed out through the water outlet channel 14 at the upper part of the impeller box 1, and is sequentially discharged through the water outlet cavity 912 of the meter case and the water outlet pipe 93; when the water is used at a small flow rate, the water flow cannot prop up the one-way valve plate 6, the water flow flows in from the diversion channel 71 at the outer side of the water filtering 5 net, the diversion channel 70 is of a conical square tube structure with a large outside and a small inside, under the further action of the pipe shrinkage neck, a high-pressure single-beam water flow is formed to directly impact the blades 22 of the impeller 2, the impeller 2 is pushed to rotate, then flows out of the water outlet channel 14 at the upper part of the impeller box 1, and then is discharged through the water outlet cavity 912 and the water outlet pipe 93 of the watchcase in sequence, so that the water dripping metering is carried out, and the starting flow rate can reach 0.5 liter/hour. In the process of rotating the impeller 2, the magnetic ring 4 can synchronously rotate along with the impeller 2, each sensor a can synchronously collect magnetic field change signals generated by the magnetic ring 4 in the process of rotating the impeller 2, the magnetic field change signals are converted into electric pulse signals and output to the outside, the MCU module can receive the electric pulse signals output by each sensor so as to calculate the volume value of water flow according to the signals, meter reading data can be sent through the wireless network NB-IOT or LORA, and the wireless meter reading function is realized.
The cycloidal impeller and the water inlet control sleeve are adopted by the movement and the base meter, the water flow stress area is increased, the rotation moment of the impeller 2 is indirectly increased, the starting flow is reduced, the water meter metering precision is improved, the one-way valve plate 6 is closed when the flow is small according to the size of pipeline flowing water, automatic start-stop switching is performed, the side diversion channel 71 is started, the cycloidal impeller is pushed to rotate so as to meet the dripping metering requirement, cycloidal damping ribs are arranged on the bottom of the impeller accommodating cavity 12 and the lower end face of the water stop cover plate 3, the damping cutting-in and stopping action time is prolonged, the pulsation generated by water flow is eliminated, the wireless intelligent meter reading can be realized through the NB-IOT or LORA wireless transmission module, the cost is saved, and the server large data platform is utilized for leakage management.
Embodiment III:
as shown in fig. 18 to 20, this embodiment differs from the first embodiment in that: preferably, the number of the diversion blocks 72 is more than two and the diversion blocks are distributed at equal intervals along the same circumferential direction around the center of the inner cavity of the filter cover 51.
While the invention has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be appreciated that various changes and modifications can be made therein without departing from the spirit of the invention. It is, therefore, to be understood that the invention is not to be in any way limited except by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a high accuracy thing networking water gauge movement of measurement of dripping which characterized in that: the water inlet control device comprises an impeller box (1), an impeller (2), a water-stop cover plate (3), a magnetic ring (4), a water inlet control sleeve and a control module;
The impeller box (1) comprises a box body (11), an impeller accommodating cavity (12) with an open top end is arranged in the box body (11), a waterproof cover plate (3) is sealed and arranged on the top end opening of the impeller accommodating cavity (12), an impeller (2) is arranged in the impeller accommodating cavity (12), the impeller (2) comprises an impeller rotating shaft (21) rotationally connected between the bottom of the impeller accommodating cavity (12) and the bottom of the waterproof cover plate (3), and a plurality of blades (22) which are sequentially arranged on the peripheral wall of the impeller rotating shaft (21) at intervals along the same circumferential direction, wherein the blades (22) are gradually inclined towards the direction deviating from the rotating progress of the impeller (2) in the process of extending from the direction of the peripheral wall of the impeller rotating shaft (21) to the direction away from the impeller rotating shaft (21);
The water inlet control suite comprises a water filtering net (5), a one-way valve plate (6) and a drip water inlet assembly (7); the water filtering net (5) comprises a filter cover (51) sleeved on the periphery of the lower part of the box body (11), a valve plate groove (52) recessed downwards is formed in the bottom surface of the inner cavity of the filter cover (51), a water inlet channel (13) communicated between the lower part of the impeller accommodating cavity (12) and the inner cavity of the filter cover (51) is formed in the box wall of the lower part of the box body (11) of the impeller box (1), and the water inlet channel (13) gradually inclines to the advancing side direction of the rotating movement direction of the impeller (2) in the process of extending from the outer channel opening to the inner channel opening; the upper box wall of the box body (11) is provided with a plurality of water outlet channels (14) which are communicated between the upper part of the impeller accommodating cavity (12) and the outer part of the box wall of the box body (11), the bottom of the valve block groove (52) is provided with a plurality of filtering holes (53) which are communicated between the outer part of the filter cover (51) and the inner cavity of the filter cover (51), and the one-way valve block (6) comprises a valve block convex block (61) which is movably matched and installed in the valve block groove (52) and an annular valve block flange (62) which is annularly arranged at the outer periphery of the upper end of the valve block convex block (61) and extends outwards; the bottom of the valve plate flange (62) is lapped on the bottom surface of the inner cavity of the filter cover (51) positioned at the periphery of the opening above the valve plate groove (52);
The drip water inlet assembly (7) comprises at least one guide block (72) fixedly arranged on the inner side of the cover wall of the filter cover (51), the guide block (72) extends from the middle position of the inner side of the cover wall of the filter cover (51) to the inner cavity and passes through a corresponding water inlet channel (13) on the box wall of the impeller box (1) to enter the impeller accommodating cavity (12), guide channels (71) extending from the outer side of the cover wall of the filter cover (51) to the inner side end surface of the guide block (72) are arranged on the guide block (72), the extending direction of the guide channels (71) is obliquely arranged with the radial direction of the impeller rotating shaft (21), and the inner side channel opening of the guide channels (71) faces the advancing side of the rotating movement direction of the impeller (2);
The magnetic ring (4) is coaxially and fixedly sleeved on an impeller rotating shaft (21) of the impeller (2) and can synchronously rotate along with the impeller rotating shaft, the control module comprises more than two sensors (a) which are distributed at intervals along the circumferential direction coaxial with the impeller rotating shaft (21) and fixedly arranged on the water-stop cover plate (3), each sensor (a) is used for synchronously collecting magnetic field change signals generated by the magnetic ring (4) in the rotation process of the impeller (2) and converting the magnetic field change signals into electric pulse signals to be output outwards, and the control module further comprises an MCU module which is connected with each sensor (a) and used for receiving the electric pulse signals output by each sensor (a) so as to calculate the volume value of water flow according to the signals.
2. The drip metering high precision internet of things water meter movement of claim 1, wherein: the impeller (2) further comprises a thimble shaft (23), a rotating fitting piece (24), a lower shaft sleeve (25), an upper rotating shaft (26) and an upper rotating shaft sleeve (27);
The ejector pin shaft (23) is coaxially and fixedly arranged at the bottom of the impeller accommodating cavity (12) and extends upwards, a conical part (231) which is inclined from the outer peripheral wall to the axial direction close to the ejector pin shaft (23) in the upward extending process is arranged at the upper end of the ejector pin shaft (23), a spherical crown surface is arranged at the top of the conical part (231), the symmetrical central axis of the spherical crown surface coincides with the axial line of the ejector pin shaft (23), a lower shaft sleeve (25) is fixedly plugged in the lower end of the impeller rotating shaft (21) and coaxially and rotatably sleeved on the outer periphery of the upper part of the ejector pin shaft (23), a rotating groove (241) which is upwards recessed is fixedly arranged in the middle of the lower shaft sleeve (25) and is arranged at the bottom center of the rotating fitting piece (24), the groove surface of the rotating groove (241) of the rotating fitting piece (24) is a spherical crown surface and is matched and pressed on the spherical crown surface at the top of the ejector pin shaft (23), so that the central axis of the rotating groove (241) of the rotating fitting piece (24) can coaxially rotate relative to the impeller rotating shaft (23), and the central axis of the rotating groove (241) is coaxial with the spherical crown surface of the impeller (23), and the spherical crown surface of the spherical crown surface is larger than the spherical crown surface of the impeller (231;
The upper rotating shaft sleeve (27) is coaxially and fixedly arranged in the waterproof cover plate (3), an upper rotating shaft sleeve hole (271) which extends along the axial direction and is downwards opened is formed in the upper rotating shaft sleeve (27), and the upper rotating shaft (26) is fixedly arranged in the middle of the upper end of the impeller rotating shaft (21) and upwards extends to be rotatably sleeved in the upper rotating shaft sleeve hole (271) of the upper rotating shaft sleeve (27), so that the impeller rotating shaft (21) can coaxially rotate relative to the upper rotating shaft sleeve (27) through the upper rotating shaft (26).
3. The drip metering high precision internet of things water meter movement of claim 2, wherein: the magnetic ring (4) is coaxially and fixedly sleeved on the periphery of the upper rotating shaft (26) and is hermetically arranged in the upper end of the impeller rotating shaft (21), and the impeller (2) further comprises a magnetic conduction sheet (28) coaxially sleeved on the periphery of the upper rotating shaft (26) and positioned below the magnetic ring (4) and used for sealing the magnetic field of the lower half part of the magnetic ring (4).
4. The drip metering high precision internet of things water meter movement of claim 2, wherein: the rotating fitting (24) is made of corundum material.
5. The drip metering high precision internet of things water meter movement of claim 1, wherein: each blade (22) is in a cycloid shape, a plurality of cycloid damping ribs (15) are sequentially arranged at intervals along the same circumferential direction at the bottom of the impeller accommodating cavity (12), each cycloid damping rib (15) is gradually inclined to the rotating advancing direction of the impeller (2) in the process of extending from the center of the bottom of the impeller accommodating cavity (12) to the side cavity wall direction of the impeller accommodating cavity (12), and each cycloid damping rib (15) is gradually inclined to the rotating advancing direction of the impeller (2) in the process of extending upwards from the bottom of the impeller accommodating cavity (12); the lower end face of the water stop cover plate (3) is provided with a plurality of cycloid-shaped damping ribs (31) which are sequentially distributed at intervals along the same circumferential direction, each cycloid-shaped damping rib (31) is gradually inclined towards the rotating advancing direction of the impeller (2) in the process of extending from the center of the lower end face of the water stop cover plate (3) to the peripheral edge direction of the water stop cover plate (3), and each cycloid-shaped damping rib (31) is gradually inclined towards the rotating advancing direction of the impeller (2) in the process of extending downwards from the lower end face of the water stop cover plate (3).
6. The drip metering high precision internet of things water meter movement of claim 1, wherein: the middle part of check valve piece (6) up end is equipped with counter weight mounting groove (63) of undercut, the control external member of intaking still includes balancing weight (8) of installing in counter weight mounting groove (63).
7. The drip metering high-precision internet of things water meter movement as set forth in claim 6, wherein: valve block guide posts (54) which are sequentially distributed at intervals along the circumferential direction of the surrounding valve block groove (52) and extend upwards from the bottom are arranged on the lower end surface of the inside of the filter cover (51), and valve block mounting holes (64) which are sleeved on the valve block guide posts (54) and can be matched and guided with the valve block guide posts (54) are arranged on valve block flanges (62) of the one-way valve block (6); the bottom of the counterweight installation groove (63) is provided with a counterweight guide column (65) extending upwards from the bottom, and the counterweight block (8) is provided with a counterweight installation hole (81) which is sleeved on the counterweight guide column (65) and can be matched and guided with the counterweight guide column (65).
8. The drip metering high precision internet of things water meter movement of claim 1, wherein: the aperture of the outer side channel opening of the diversion channel (71) is larger than that of the inner side channel opening; the water outlet channel (14) gradually inclines to the advancing side direction of the rotating movement direction of the impeller (2) in the process of extending from the inner channel opening to the outer channel opening.
9. The drip metering high precision internet of things water meter movement of claim 1, wherein: the number of the guide blocks (72) is more than two, and the guide blocks are distributed at equal intervals along the same circumferential direction surrounding the center of the inner cavity of the filter cover (51).
10. A drip metering high precision internet of things water meter base meter using the drip metering high precision internet of things water meter movement of any one of claims 1-9, characterized in that: the water dripping metering high-precision internet of things water meter movement is fixedly arranged in the movement accommodating cavity (91), and the water dripping metering high-precision internet of things water meter movement outer peripheral wall and the movement accommodating cavity (91) are in matched contact to enable the water inlet cavity (911) of the casing bottom of the movement accommodating cavity (91) and the water outlet cavity (912) of the casing middle of the movement accommodating cavity (91) to be mutually isolated; the filtering holes (53) and the diversion channels (71) are communicated with a watchcase water inlet cavity (911) positioned outside the dripping metering high-precision internet of things water meter movement, and the water outlet channel (14) is communicated with a watchcase water outlet cavity (912) positioned outside the dripping metering high-precision internet of things water meter movement.
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| CN112254778A (en) * | 2020-09-22 | 2021-01-22 | 无锡中仪智能科技有限公司 | Wireless remote water meter for measuring water |
| CN112178464A (en) * | 2020-11-05 | 2021-01-05 | 台州市中积智能装备有限公司 | Rotary wear-resistant structure applied to field of fluid machinery |
| CN113701842B (en) * | 2021-08-20 | 2023-12-12 | 宁波水表(集团)股份有限公司 | Water meter with adjustable flow characteristics |
| CN118190097A (en) * | 2024-01-05 | 2024-06-14 | 宁夏水投清水河城乡供水有限公司 | Intelligent water meter capable of monitoring dripping flow |
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| CN111024171A (en) * | 2019-12-31 | 2020-04-17 | 福建上润精密仪器有限公司 | Base meter of positive displacement intelligent water meter |
| CN211425552U (en) * | 2020-01-20 | 2020-09-04 | 福建上润精密仪器有限公司 | Drip metering high-precision Internet of things water meter machine and base meter thereof |
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| US7181964B2 (en) * | 2005-05-16 | 2007-02-27 | Nivens Jr Kirk N | Liquid flow meter |
| CN2847233Y (en) * | 2005-11-11 | 2006-12-13 | 林峰 | High sensitivity dropping water meter |
| CN200986449Y (en) * | 2006-12-20 | 2007-12-05 | 孙培华 | Differential pressure drip metering water meter |
| CN102346056B (en) * | 2011-09-22 | 2016-08-17 | 湖南常德牌水表制造有限公司 | The base table of the heavy caliber vortex electronic type water meter with pressure transducer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111024171A (en) * | 2019-12-31 | 2020-04-17 | 福建上润精密仪器有限公司 | Base meter of positive displacement intelligent water meter |
| CN211425552U (en) * | 2020-01-20 | 2020-09-04 | 福建上润精密仪器有限公司 | Drip metering high-precision Internet of things water meter machine and base meter thereof |
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