CN107576357B - High-sensitivity backflow-preventing intelligent water meter - Google Patents
High-sensitivity backflow-preventing intelligent water meter Download PDFInfo
- Publication number
- CN107576357B CN107576357B CN201710900872.7A CN201710900872A CN107576357B CN 107576357 B CN107576357 B CN 107576357B CN 201710900872 A CN201710900872 A CN 201710900872A CN 107576357 B CN107576357 B CN 107576357B
- Authority
- CN
- China
- Prior art keywords
- water
- impeller
- control channel
- meter
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 210
- 230000035945 sensitivity Effects 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000008188 pellet Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention provides a high-sensitivity backflow-preventing intelligent water meter, which comprises a meter core outer box and an impeller box; the impeller box is nested in the outer box of the watch core; a sensitive control channel is arranged in the outer box of the watch core, the sensitive control channel is communicated with the inner wall and the outer wall of the outer box of the watch core, a light control piece is arranged in the sensitive control channel, and the diameter of the light control piece is larger than the aperture of the bottom of the sensitive control channel; the bottom of the outer box of the watch core is provided with a water inlet channel, and the upper side of the water inlet channel is provided with a water pressing sheet; the mass of the light control piece is smaller than that of the water pressing piece. Through setting up sensitive control channel in the table core, utilize the light ball in the sensitive control channel to cooperate with the through-hole in the sensitive control channel, make the water gauge can detect out the flow of weak rivers, and then improve the sensitivity of water gauge, this structure can prevent simultaneously that rivers from flowing backwards from causing the interference to the water gauge registration. The design is simple and practical, has low manufacturing cost and extremely high industrial value and application prospect.
Description
Technical Field
The invention relates to the technical field of water meters, in particular to a high-sensitivity backflow-preventing intelligent water meter.
Background
With the continuous development of industrial economy and urban scale, water meters are being installed and used more and more widely in industry and resident life as meters for measuring the flow of water. Water meters in the market mainly drive impeller blades to rotate through water flow, drive gears on a counter to rotate, and measure water consumption.
In order to prevent backflow, the existing water meter is provided with a water inlet channel at the bottom of a meter core outer box of a water meter inner core, and a water pressing sheet is arranged on the water inlet channel; when water flow enters from the water inlet channel at the bottom of the outer box of the watch core, the water pressing sheet is jacked up by water pressure, so that the water flow can enter the inner core to drive the impeller to rotate. When the water flow stops or the water meter is inverted, the water pressure is zero at the moment or opposite to the previous water pressure direction, and the water inlet channel is blocked by the water pressure sheet due to the action of gravity or pressure, so that the backflow of the water flow is prevented. However, the existing water-pressing sheet is generally made of plastic materials, if the density of the water-pressing sheet is too small, the weight of the water-pressing sheet is too light, when the water pressure disappears, the water-pressing sheet can not block the water inlet channel due to buoyancy in water, so that the water flow flows backwards, and the sensitivity of the water meter is affected, therefore, the water-pressing sheet must have a certain density (usually realized by weighting the water-pressing sheet), however, when the water flow is tiny, the water pressure can not push the water-pressing sheet open, and the water meter can not check the flow of tiny water flow, so that the sensitivity of the water meter is greatly reduced.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a high-sensitivity backflow-preventing intelligent water meter, which comprises a meter core outer box and an impeller box; the impeller box is nested in the outer box of the watch core; a sensitive control channel is arranged in the outer box of the watch core, the sensitive control channel is communicated with the inner wall and the outer wall of the outer box of the watch core, a light control piece is arranged in the sensitive control channel, and the diameter of the light control piece is larger than the aperture of the bottom of the sensitive control channel;
A water inlet channel is arranged at the bottom of the outer box of the watch core, and a water pressing sheet is arranged on the upper side of the water inlet channel; the mass of the light control member is smaller than the mass of the water pressing sheet.
Further, the lower port of the sensitive control channel is communicated with a water flow hole arranged on the outer box of the watch core; the light control member is a light small ball.
Further, a blocking net is arranged at the upper port of the sensitive control channel.
Further, the edge of the water pressing sheet is provided with a limiting hole, the bottom surface of the outer box of the watch core is provided with a limiting column, and the limiting hole is matched with the limiting column to limit the water pressing sheet between the outer bottom surface of the impeller box and the inner bottom surface of the outer box of the watch core.
Further, the water pressing sheet is provided with a weight.
Further, the water inlet channel is a reticular hole.
Further, a fixed edge is arranged on the side wall of the impeller box, and the fixed edge is an annular bulge;
a water inlet slot is formed in the side wall of the impeller box below the fixed edge, and a water outlet slot is formed in the side wall of the impeller box above the fixed edge; the notch inclination directions of the water inlet slot hole and the water outlet slot hole are opposite.
Further, a fixed edge is arranged on the side wall of the impeller box, and the fixed edge is an annular bulge; the fixed edge is provided with a calibration column, the lower port of the calibration column is communicated with a space formed by the impeller box and the outer box of the watch core, and the upper side of the calibration column is provided with a water outlet notch.
Further, an adjusting groove is formed in the upper end of the calibration column.
Further, an impeller blade is arranged in the impeller box, an impeller gear is arranged at the upper end of the impeller blade, and the impeller gear drives a gear in the dial plate to rotate.
According to the high-sensitivity backflow-preventing intelligent water meter, the sensitive control channel is arranged in the meter core, and the light ball in the sensitive control channel is matched with the through hole in the sensitive control channel, so that the water meter can detect the flow of weak water flow, the sensitivity of the water meter is further improved, and meanwhile, the structure can prevent the backflow of water flow from interfering the water meter reading. The design is simple and practical, has low manufacturing cost and extremely high industrial value and application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a cross-sectional structure of a high-sensitivity backflow-preventing intelligent water meter provided by the invention;
FIG. 2 is an exploded view of the intelligent high-sensitivity backflow-preventing water meter provided by the invention;
FIG. 3 is a schematic view of the inverted structure of the core box of FIG. 2;
FIG. 4 is a top view of the impeller cartridge of FIG. 2;
FIG. 5 is a schematic view of a partial cross-sectional structure of the sensitivity control channel in FIG. 2;
FIG. 6 is an enlarged cross-sectional view of the preferred embodiment of the flexible control channel and water flow holes of FIG. 1.
Reference numerals:
100-meter core outer box 110 water inlet channel 120 water pressing sheet
130 Water flow hole 200 impeller box 210 sensitive control channel
211 Light ball 212 blocking net 121 limiting hole
140 Spacing post 122 weight 220 fixed edge
231 Inlet 232 outlet 240 alignment post
241 Water outlet notch 242 regulating groove 300 impeller blade
310 Impeller gear
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
The invention provides a high-sensitivity backflow-preventing intelligent water meter, which is shown in fig. 1 and 2, and comprises a meter core outer box 100 and an impeller box 200; the impeller box 200 is nested within the core outer box 100; a sensitive control channel 210 is arranged in the meter core outer box 100, the sensitive control channel 210 is communicated with the inner wall and the outer wall of the meter core outer box 100, a light control piece 211 is arranged in the sensitive control channel 210, and the diameter of the light control piece 211 is larger than the aperture of the bottom of the sensitive control channel 210; a water inlet channel 110 is arranged at the bottom of the outer box 100 of the watch core, and a water pressing sheet 120 is arranged on the upper side of the water inlet channel 110; the mass of the lightweight control member 211 is smaller than the mass of the water pressure sheet 120.
The lower port of the sensitive control channel 210 is communicated with the water flow hole 130 arranged at the bottom of the outer box 100 of the watch core, and is further communicated with the inner wall and the outer wall of the outer box 100 of the watch core; the light control member 211 is a light tablet or a light briquette, preferably a light pellet; the diameter of the lightweight pellets is larger than the aperture of the water flow holes 130.
As shown in fig. 3, a water inlet channel 110 is provided at the bottom of the exterior case 100, and a water pressure sheet 120 is provided on the upper side of the water inlet channel 110.
Specifically, when the flow rate of the water flow is small, a sufficient water pressure cannot be generated to push the water pressure sheet 120 up and enter the meter core from the water inlet channel 110, at this time, the water flow will enter the sensitive control channel 210 from the bottom side of the meter core outer box 100, and since the water pressure is upward and the light balls are made of a light plastic material, even if the small water flow can make the light balls float upward, the water flow through hole 130 or the sensitive control channel 210 which is blocked originally will be opened. While the inner diameter of the upper part of the inner channel of the sensitive control channel 210 is larger than the diameter of the light-weight small ball, so that even when the water flow is trace, the water flow can enter the interior of the watch core from the sensitive control channel 210; when the water flow stops, the light ball is forced upwards to disappear, and under the action of gravity, the light ball will block the water flow hole 130 or the sensitive control channel 210 again, thereby preventing the water flow from flowing backwards, and avoiding the water meter from rotating. In addition, if the water meter provided by the invention is inverted, namely water flow enters from the upper part of the water meter and flows out from the bottom end of the water meter, the water inlet channel 110 and the water flow through hole 130 are respectively blocked due to downward force applied to the water pressure sheet 120 and the light ball, so that when the water meter is inverted, the water flow in the water meter core cannot flow, the impeller cannot rotate correspondingly, and the influence of the inversion of the water meter on the indication of the water meter is avoided.
According to the high-sensitivity backflow-preventing intelligent water meter, the sensitive control channel is arranged in the meter core, and the light ball in the sensitive control channel is matched with the through hole in the sensitive control channel, so that the water meter can detect the flow of weak water flow, the accuracy and the sensitivity of the water meter are improved, and meanwhile, the structure can prevent the backflow of water flow from interfering the water meter reading. The design is simple and practical, has low manufacturing cost and extremely high industrial value and application prospect.
Preferably, as shown in fig. 4, the upper port of the sensitive control channel 210 is provided with a blocking net 212. The barrier net 212 prevents light weight pellets from rushing out of the sensitive control channel 210 when the water is large. Meanwhile, the blocking net 212 is of a detachable structure, so that the light-weight pellets can be conveniently replaced or the sensitive control channel 210 can be conveniently cleaned. Meanwhile, the surface of the light-weight small ball is covered with silicon rubber, and magnetic powder is arranged between the silicon rubber and the surface of the light-weight small ball. On the one hand, if the light-weight pellets are accidentally blocked in the sensitive control channel, the water flow pressure is insufficient to jack the light-weight pellets open, and when the water meter is inconvenient to disassemble, the water meter can dredge the light-weight pellets under the condition of not disassembling by utilizing the effect of magnetic force; on the other hand, because the water content in the sensitive control channel is tiny, the scale or the impurity is very easy to accumulate and produce at the moment, and the scale or the impurity in the water meter can be adsorbed and filtered through the silicon rubber and the magnetic powder which are arranged on the small balls, so that the scale or the impurity is prevented from accumulating in the sensitive control channel to block the light small balls, and meanwhile, the effect of purifying the water quality can be achieved. The silicone rubber has certain elasticity, so that a better sealing effect can be achieved when the light ball blocks the sensitive control channel 210 or the water flow hole 130.
In addition, since the water flow in the sensitive control channel 210 is inevitably fallen back to some extent when the water flow stops, although the water yield in the sensitive control channel 210 is extremely small, in order to further reduce the water flow falling back amount in this portion, as shown in fig. 1 and 4, the channel aperture in the sensitive control channel 210 is gradually reduced from top to bottom, and the aperture size at the bottommost end is consistent with the diameter of the lightweight pellet, so that the water flow falling back amount in the sensitive control channel 210 can be reduced to the greatest extent. Further, as shown in fig. 5, the water flow hole 130 may be formed in an inverted S-shaped bent design, and the corner point of the light ball is lower than the corner point of the light ball. The design skillfully utilizes the siphon principle, so that when water flow stops, under the action of the siphon principle, on one hand, the ball can quickly fall back to block the water flow through hole 130, and on the other hand, the light ball can tightly block the water flow through hole 130 due to the negative pressure generated by the siphon principle, so that water flow is prevented from flowing out of a gap between the light ball and the water flow through hole 130. When water flow is continuously introduced from the bottom of the water flow hole 130, the negative pressure generated by the siphon principle disappears, and the water flow can easily jack up the light balls. The design further improves the accuracy and sensitivity of the water meter.
Preferably, as shown in fig. 2, a limiting hole 121 is provided at an edge of the water pressure sheet 120, a limiting post 140 is provided at a bottom surface of the outer casing 100, and the limiting hole 121 is matched with the limiting post 140 to limit the water pressure sheet 120 between an outer bottom surface of the impeller casing 200 and an inner bottom surface of the outer casing 100; the impeller box 200 is provided with a through hole at the bottom thereof. The spacing hole 121 can be installed conveniently on the one hand, and on the other hand can make the pressurized-water sheet 120 only remove in spacing post 140 direction, prevents that the condition of pressurized-water sheet 120 dislocation from taking place.
Preferably, as shown in fig. 2, the weight 122 is provided on the water pressurizing sheet 120. The weighting block 122 is a metal block, which can increase the overall density and weight of the water pressure sheet 120, so that the water pressure sheet 120 can block the water inlet channel 110 in time when the water flow stops, and prevent the water flow from flowing backwards. Meanwhile, the water pressing sheet can prevent water flow from directly impacting the vane wheel to generate disturbance, so that fluctuation of water meter indication is caused.
Preferably, the water inlet channel 110 is a mesh (as shown in fig. 3). The mesh can advance and filter the impurity in the rivers, prevents impurity such as floc and get into in the water gauge, causes the damage to the water gauge.
On the basis of the above structure, further, as shown in fig. 2, a fixing edge 220 is provided on a side wall of the impeller box 200, and the fixing edge 220 is an annular protrusion; a water inlet slot 231 is formed in the side wall of the impeller box 200 below the fixed edge 220, and a water outlet slot 232 is formed in the side wall of the impeller box 200 above the fixed edge 220; the slot opening of the water inlet slot 231 is inclined in the opposite direction to the slot opening of the water outlet slot 232.
Specifically, when the water flow enters the impeller box 200 from the water inlet slot 231, the slots of the water inlet slot 231 are inclined in one direction (as shown in fig. 6), so that the pressure generated by the water flow can uniformly act on the impeller 300 and drive the impeller 300 to rotate, and the slot direction of the water outlet slot 232 is opposite to the slot inclination direction of the water inlet slot 231 (as shown in fig. 2), and the slot inclination direction is identical to the rotation direction of the impeller 300. The above arrangement can make the pressure of the water flow act on the vane wheel 300 to the maximum extent, avoids the phenomenon that the water flow generates turbulence in the impeller box 200, not only improves the sensitivity of the water meter, but also avoids the phenomenon that the water meter generates errors.
Further, a fixing edge 220 is provided on a side wall of the impeller box 200, and the fixing edge 220 is an annular protrusion; the fixed edge 220 is provided with a calibration column 240, a lower port of the calibration column 240 is communicated with a space formed by the impeller box 200 and the core outer box 100, and a water outlet notch 241 is formed on the upper side of the calibration column 240; preferably, an adjusting groove 242 is provided at the upper end of the calibration column 240.
Specifically, when the indication of the dial indicator of the water meter is inconsistent with the actual flow, the size of the water outlet notch 241 on the upper side of the calibration column 240 is changed by rotating the calibration column 240, so that the flow of water entering the impeller box 200 is changed. The specific principle is as follows: the total flow entering the water meter is unchanged, and when the water flow is split by a part of water flow from the water outlet notch 241 of the calibration column 240, the water flow entering the impeller box 200 is reduced, so that the actual rotation speed and the actual water flow of the water meter dial are kept all the time. The alignment can be more conveniently performed by a tool through the adjustment slot 242.
Further, an impeller blade 300 is disposed in the impeller case 200, an impeller gear 310 is disposed at the upper end of the impeller blade 300, and the impeller gear 310 drives a gear in the dial to rotate.
Although terms such as a core-out box, a water inlet channel, a water pressure sheet, a water flow through hole, an impeller box, a sensitive control channel, a light weight ball, a blocking net, a limiting hole, a limiting post, a weight, a fixed edge, a water inlet slot, a calibration post, a water outlet notch, an adjusting slot, an impeller sheet, an impeller gear, etc. are more used herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A high-sensitivity backflow-preventing intelligent water meter is characterized in that: comprises a meter core outer box (100) and an impeller box (200); the impeller box (200) is nested in the outer box (100) of the watch core; a sensitive control channel (210) is arranged in the meter core outer box (100), the sensitive control channel (210) is communicated with the inner wall and the outer wall of the meter core outer box (100), a light control piece (211) is arranged in the sensitive control channel (210), the diameter of the light control piece (211) is larger than the aperture of the bottom of the sensitive control channel (210), the lower port of the sensitive control channel (210) is communicated with a water flow through hole (130) arranged on the meter core outer box (100), the water flow through hole (130) is of a bending design, and the corner point of the water flow through hole (130) close to the light control piece (211) is lower than the corner point of the water flow through hole far away from the light control piece (211);
the bottom of the outer box (100) of the watch core is provided with a water inlet channel (110), and the upper side of the water inlet channel (110) is provided with a water pressing sheet (120); the mass of the lightweight control member (211) is smaller than the mass of the water pressure sheet (120).
2. The high sensitivity anti-backflow intelligent water meter of claim 1, wherein: the light control member (211) is a light ball.
3. The high sensitivity anti-backflow intelligent water meter of claim 1, wherein: the upper port of the sensitive control channel (210) is provided with a blocking net (212).
4. The high sensitivity anti-backflow intelligent water meter of claim 1, wherein: the edge of the water pressing sheet (120) is provided with a limiting hole (121), the bottom surface of the outer box (100) of the watch core is provided with a limiting column (140), and the limiting hole (121) is matched with the limiting column (140) to limit the water pressing sheet (120) between the outer bottom surface of the impeller box (200) and the inner bottom surface of the outer box (100) of the watch core.
5. The high sensitivity anti-backflow intelligent water meter of claim 1, wherein: the water pressing sheet (120) is provided with a weight (122).
6. The high sensitivity anti-backflow intelligent water meter of claim 1, wherein: the water inlet channel (110) is a reticular hole.
7. The high sensitivity anti-backflow intelligent water meter of claim 1, wherein: a fixed edge (220) is arranged on the side wall of the impeller box (200), and the fixed edge (220) is an annular bulge;
A water inlet slot (231) is formed in the side wall of the impeller box (200) below the fixed edge (220), and a water outlet slot (232) is formed in the side wall of the impeller box (200) above the fixed edge (220); the notch inclination directions of the water inlet slot hole (231) and the water outlet slot hole (232) are opposite.
8. The high sensitivity anti-backflow intelligent water meter of claim 1, wherein: a fixed edge (220) is arranged on the side wall of the impeller box (200), and the fixed edge (220) is an annular bulge; the fixed edge (220) is provided with a calibration column (240), the lower port of the calibration column (240) is communicated with a space formed by the impeller box (200) and the outer box (100) of the watch core, and the upper side of the calibration column (240) is provided with a water outlet notch (241).
9. The high-sensitivity backflow-preventing intelligent water meter according to claim 8, wherein: an adjusting groove (242) is formed in the upper end of the calibration column (240).
10. The high-sensitivity backflow-preventing intelligent water meter according to claim 8, wherein: impeller blade (300) are arranged in impeller box (200), impeller gear (310) is arranged at the upper end of impeller blade (300), and impeller gear (310) drives the gear in the dial plate to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900872.7A CN107576357B (en) | 2017-09-28 | 2017-09-28 | High-sensitivity backflow-preventing intelligent water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900872.7A CN107576357B (en) | 2017-09-28 | 2017-09-28 | High-sensitivity backflow-preventing intelligent water meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107576357A CN107576357A (en) | 2018-01-12 |
| CN107576357B true CN107576357B (en) | 2024-08-30 |
Family
ID=61039480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710900872.7A Active CN107576357B (en) | 2017-09-28 | 2017-09-28 | High-sensitivity backflow-preventing intelligent water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107576357B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487347B (en) * | 2019-08-23 | 2021-09-14 | 厦门市京准智能水表有限公司 | High-precision anti-freezing water meter and high-precision anti-freezing treatment method for water meter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363744A (en) * | 2008-09-12 | 2009-02-11 | 柳胜震 | Waving proof and reversing proof high sensitive water meter |
| CN207180773U (en) * | 2017-09-28 | 2018-04-03 | 厦门市京准智能水表有限公司 | A kind of high sensitivity anti-backflow intellectual water meter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB714203A (en) * | 1951-04-17 | 1954-08-25 | Krizik | Improvements in rotary meters |
| CN205483137U (en) * | 2016-04-07 | 2016-08-17 | 厦门市京准智能水表有限公司 | Prevent disturbance high sensitivity water gauge |
-
2017
- 2017-09-28 CN CN201710900872.7A patent/CN107576357B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363744A (en) * | 2008-09-12 | 2009-02-11 | 柳胜震 | Waving proof and reversing proof high sensitive water meter |
| CN207180773U (en) * | 2017-09-28 | 2018-04-03 | 厦门市京准智能水表有限公司 | A kind of high sensitivity anti-backflow intellectual water meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107576357A (en) | 2018-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2008113382A (en) | TURBINE METER | |
| CN107576357B (en) | High-sensitivity backflow-preventing intelligent water meter | |
| CN102176044B (en) | Method and device for determining the reference level of 220Rn concentration by using low-voltage scintillation chamber | |
| CN202814466U (en) | Electronic water meter | |
| CN113375734B (en) | Intelligent water meter with flow automatic correction function | |
| CN116519066B (en) | Monitoring and measuring device for flow of wetland water channel | |
| CN208399303U (en) | A kind of aeration concentrater measuring device | |
| CN207180773U (en) | A kind of high sensitivity anti-backflow intellectual water meter | |
| CN109521503A (en) | A kind of siphoning installation of high-precision response rainfall process | |
| CN208751672U (en) | A kind of measuring device for level of reservoir | |
| CN212843824U (en) | Coal bed gas drainage and water production metering device | |
| CN201144692Y (en) | Coal bed gas well wellhead mass flowmeter | |
| CN210719274U (en) | A throttle orifice flowmeter | |
| CN203587151U (en) | Ultrasonic open-channel meter | |
| CN208254600U (en) | A kind of float gauge stabilising arrangement | |
| CN218156408U (en) | Weighing container of liquid flow standard device by mass method | |
| CN220671668U (en) | Small capacitive rainfall sensor | |
| CN207556595U (en) | A kind of water meter structure | |
| CN205940685U (en) | Wave absorption weir case | |
| CN207066550U (en) | A kind of hydraulic engineering Level monitor | |
| CN205680009U (en) | A kind of flow controller | |
| CN109870199B (en) | Inclined sand-proof flow dividing flowmeter | |
| CN209910763U (en) | Intelligent dry-type water meter | |
| CN210719341U (en) | Top-mounted floater liquid level meter | |
| CN220251088U (en) | Digital display magnetic ring impeller flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |