CN2847233Y - High sensitivity dropping water meter - Google Patents
High sensitivity dropping water meter Download PDFInfo
- Publication number
- CN2847233Y CN2847233Y CN 200520116353 CN200520116353U CN2847233Y CN 2847233 Y CN2847233 Y CN 2847233Y CN 200520116353 CN200520116353 CN 200520116353 CN 200520116353 U CN200520116353 U CN 200520116353U CN 2847233 Y CN2847233 Y CN 2847233Y
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- high sensitivity
- watchcase
- water meter
- inlet end
- meter
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Abstract
The utility model provides a high sensitivity dropping measuring water meter, which comprises a meter casing, the water inlet end of the meter casing, a meter joint, a core and a sealing assembly, wherein a differential pressure accumulation one-way valve assembly is arranged in the water inlet end of the meter casing, and the lower part of the meter casing is provided with a gas storing bag. The differential pressure accumulation one-way valve assembly is composed of a piston, a guide sleeve and a spring, wherein the guide sleeve forms a trumpet shape, the front part of the guide sleeve is thin and the back part of the guide sleeve is thick. The piston matched with the guide sleeve is arranged in the guide sleeve to form a valve, and the spring is buckled in the piston. The high sensitivity dropping measuring water meter provided by the utility model can keep discontinuous work in the state of micro flow capacity and increase measuring accuracy, and meanwhile, the technical indexes of pressure loss, etc. accord with the requirements of national standards GB/T778-1996. The utility model has the advantages of reasonable selection of materials, high cost performance, long service life and simple assembly technologies, meanwhile, the production technologies of components are easy to realize lot size and high production efficiency can be ensured.
Description
Technical field
The utility model relates to a kind of metering water meter, particularly a kind of high sensitivity drop metering water meter.
Background technology
At present the general usual speed formula B level water meter initiating flow that begins to measure is all about 6L/h to 8L/h, so the tap water of water clock can not be measured, and the economic loss that therefore annual country causes is very huge.And all there are all deficiencies in water meter micrometeor metering technology at present, as technology such as Chinese patent CN200420031714.0, CN200420069617.0, CN03279627.7, it is the change that utilizes the outer water strainer of impeller box of water meter movement, be created in the jet that can make wheel rotation under the low discharge, such device strengthens water meter error under the state of low discharge, the aperture that the while jet passes through easily stops up, and the time, long this series products also can be lost the function of micrometeor metering.Standard GB/T778-1996 forbids manufacture by water meter.Also has similar Chinese patent CN200420050149.2, water meters such as CN200320101728.0, the CN200320047636.3 meter technology of dripping, these technology have adopted the water storehouse and the reverse checkvalve structure of isolating with water meter movement, utilize pressure to change generation and can promote the kinetic energy of wheel rotation, thereby reach the function of under micrometeor, measuring.What but these technology pressure reduction accumulation of energy one-way cock assembly materials used is magnet ring, bar magnet, long slightly can absorption by pressure reduction accumulation of energy one-way cock assembly of time because of ferro element or other impurity in the water, cause pressure reduction accumulation of energy one-way cock assembly stuck, causing can not normal water supply.And the water storehouse of isolating also exists hidden danger, if seal bad or isolated material breaks, tap water will flow out from the pipeline that communicates with water storehouse, and without the metering and the counting mechanism of water meter, all will cause water meter to lose basic function of measuring.Simultaneously above technology makes water meter measurement sensitivity raising but not prevent the measure of pipeline disturbance, makes not water and the phenomenon of water meter rotation is more outstanding.And above technology all exists the change phenomenon to water meter movement, is difficult to guarantee water meter accurate measurement in normal operation.
Summary of the invention
The purpose that the utility model provides is to provide a kind of initiating flow less than 0.5L/h in order to solve above-mentioned technical deficiency, can not cause the water meter measurement afunction in any case, disturbance rejection, anti-upside-down mounting, the high sensitivity drop metering water meter of B level table requirement among the GB/T778-1996 that can be up to state standards.
In order to achieve the above object, the utility model provides a kind of high sensitivity drop metering water meter to comprise watchcase, watchcase water inlet end, meter connector, movement, seal assembly, watchcase water inlet end inside is provided with pressure reduction accumulation of energy one-way cock assembly, and the watchcase bottom is provided with the gas storage bag.Pressure reduction accumulation of energy one-way cock assembly is made up of piston, orienting sleeve, spring.Orienting sleeve is front fine and rear thick horn shape, and thin end is outer to have the screw thread that is connected with the intake gauge joint, the inside of butt end that four road sluicing conduits are arranged, and orienting sleeve inside is provided with piston with matching to form valve, button spring in the piston.Spring is the technology spring made from the import stainless steel wire.The gas storage bag can be to be the airtight right cylinder that is full of air, can be to make with plastics or silicon rubber.Seal assembly is made up of silicone rubber O-ring, plastic washer and the plastic inner lining cover on wedge shape cutting edge of a knife or a sword limit, and the silicone rubber O-ring endoporus cooperates with the plastic inner lining cover, and silicone rubber O-ring assembles plastic washer on the outer ring, to realize sealing function.Meter connector is provided with the external thread that is connected with the watchcase water inlet end and is provided with the internal thread that pressure reduction accumulation of energy one-way cock assembly is connected with inside.
High sensitivity drop metering water meter provided by the utility model, under the micrometeor state, keep discontinuity work, improve metering accuracy greatly, and can resist the disturbance of resistance pipe network, really realized accurately metering under the micrometeor state, solved the problem that former water meter can not measure under the situation of dripping, and can not upside-down mounting, therefore the means of stopping use without compensation tap water phenomenon are provided to water supply department, promote reasonable use of water, using water wisely, significantly reduced the loss that country causes because of the wasting of resources.Every technical indicators such as the while pressure loss all meet the requirement of standard GB/T778-1996, and selection is reasonable, cost performance height, long service life.The parts production technology easily realizes mass simultaneously, and assembly technology is brief, can guarantee higher production efficiency.
Description of drawings
Fig. 1 is an example structure synoptic diagram of the present utility model;
Fig. 2 is a pressure reduction accumulation of energy one-way cock modular construction synoptic diagram of the present utility model;
Fig. 3 is pressure reduction accumulation of energy one-way cock assembly of the present utility model and meter connector unitized construction synoptic diagram;
1: meter connector; 2: the watchcase water inlet end; 3: movement; 4: seal assembly; 5: pressure reduction accumulation of energy one-way cock assembly; 6: spring; 7: the gas storage bag; 8: watchcase; 9: orienting sleeve; 10: piston; 11: plastic washer; 12: silicone rubber O-ring; 13: internal thread; 14: external thread; 15: the plastic inner lining cover.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment:
As Fig. 1, Fig. 2, shown in Figure 3, the high sensitivity drop metering water meter that present embodiment provides, its table comprises that watchcase 8, watchcase water inlet end 2, meter connector 1, movement 3, seal assembly 4, watchcase water inlet end 2 inside are provided with pressure reduction accumulation of energy one-way cock assembly 5, and watchcase 8 bottoms are provided with gas storage bag 7.Pressure reduction accumulation of energy one-way cock assembly 5 is made up of piston 10, orienting sleeve 9, spring 6.Orienting sleeve 9 is front fine and rear thick horn shape, and thin end is outer to have the screw thread that is connected with the intake gauge joint, the inside of butt end that four road sluicing conduits are arranged, and orienting sleeve 9 inside are provided with piston with matching to form valve, button spring 6 in the piston 10.Gas storage bag 7 is the airtight right cylinder that is full of air, makes with silicon rubber.Seal assembly 4 is made up of silicone rubber O-ring 12, plastic washer 11 and the plastic inner lining cover 15 on wedge shape cutting edge of a knife or a sword limit, and silicone rubber O-ring 12 endoporus cooperate with plastic inner lining cover 15, and silicone rubber O-ring assembles plastic washer on 12 outer rings, to realize sealing function.Meter connector 1 is provided with the external thread 14 that is connected with watchcase water inlet end 2 and is provided with the internal thread 13 that pressure reduction accumulation of energy one-way cock assembly is connected with inside.
When being in, opens when dripping state by water swivel, owing to be installed in the sealing function of seal assembly 4 in the joint, the pressure in table chamber constantly reduces in the seal assembly 4, pressure outside the seal assembly 4 is gradually greater than the table internal pressure comparatively speaking, pressure reduction accumulation of energy one-way cock assembly 5 in the watchcase water inlet end 2 is opened and is moved in the table chamber, gas storage bag 7 volumes that originally were in simultaneously compressive state also begin to expand gradually, this variation lasts till that pressure reduction accumulation of energy one-way cock assembly 5 moves the position that causes when pressure is consistent before and after it, because the elastic force of spring 6 makes pressure reduction accumulation of energy one-way cock assembly get back to closure state again, the bag of gas storage simultaneously 7 is got back to original compressive state again, these actions are along with continuing that water swivel drips, carrying out regularly again and again, water flow impact pressure makes the metering mechanism of water meter movement produce discontinuity work in the consequent table chamber, and the tap water of water clock is finished metering.
Claims (9)
1. high sensitivity drop metering water meter, it comprises watchcase (8), watchcase water inlet end (2), meter connector (1), movement (3), seal assembly (4), it is characterized in that being provided with pressure reduction accumulation of energy one-way cock assembly (5) in watchcase water inlet end (2) inside, watchcase (8) bottom is provided with gas storage bag (7).
2. a kind of high sensitivity drop metering water meter according to claim 1, it is characterized in that described pressure reduction accumulation of energy one-way cock assembly (5) is made up of piston (10), orienting sleeve (9), spring (6), orienting sleeve (9) is front fine and rear thick horn shape, outside the thin end screw thread that is connected with the intake gauge joint is arranged, there are four road sluicing conduits the inside of butt end, orienting sleeve (9) inside is provided with piston with matching (10), and button spring (6) is formed valve in the piston (10).
3. ask 1 or 2 described a kind of high sensitivity drop metering water meters according to right, it is characterized in that described gas storage bag (7) is the airtight right cylinder that is full of air.
4. a kind of high sensitivity drop metering water meter according to claim 1 and 2, it is characterized in that described seal assembly (4) is made up of silicone rubber O-ring (12), plastic washer (11) and the plastic inner lining cover (15) on wedge shape cutting edge of a knife or a sword limit, silicone rubber O-ring (12) endoporus cooperates with plastic inner lining cover (15), and silicone rubber O-ring (12) assembles plastic washer (11) on the outer ring.
5. a kind of high sensitivity drop metering water meter according to claim 3, it is characterized in that described seal assembly (4) is made up of silicone rubber O-ring (12), plastic washer (11) and the plastic inner lining cover (15) on wedge shape cutting edge of a knife or a sword limit, silicone rubber O-ring (12) endoporus cooperates with plastic inner lining cover (15), and silicone rubber O-ring (12) assembles plastic washer (11) on the outer ring.
6. a kind of high sensitivity drop metering water meter according to claim 1 and 2 is characterized in that described meter connector (1) is provided with the external thread (14) that is connected with watchcase water inlet end (2) and is provided with the internal thread (13) that pressure reduction accumulation of energy one-way cock assembly (5) is connected with inside.
7. a kind of high sensitivity drop metering water meter according to claim 3 is characterized in that described meter connector (1) is provided with the external thread (14) that is connected with watchcase water inlet end (2) and is provided with the internal thread (13) that pressure reduction accumulation of energy one-way cock assembly (5) is connected with inside.
8. a kind of high sensitivity drop metering water meter according to claim 4 is characterized in that described meter connector (1) is provided with the external thread (14) that is connected with watchcase water inlet end (2) and is provided with the internal thread (13) that pressure reduction accumulation of energy one-way cock assembly (5) is connected with inside.
9. a kind of high sensitivity drop metering water meter according to claim 5 is characterized in that described meter connector (1) is provided with the external thread (14) that is connected with watchcase water inlet end (2) and is provided with the internal thread (13) that pressure reduction accumulation of energy one-way cock assembly (5) is connected with inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520116353 CN2847233Y (en) | 2005-11-11 | 2005-11-11 | High sensitivity dropping water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520116353 CN2847233Y (en) | 2005-11-11 | 2005-11-11 | High sensitivity dropping water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2847233Y true CN2847233Y (en) | 2006-12-13 |
Family
ID=37512656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520116353 Expired - Fee Related CN2847233Y (en) | 2005-11-11 | 2005-11-11 | High sensitivity dropping water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2847233Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737927A (en) * | 2014-12-12 | 2016-07-06 | 西安北斗星数码信息股份有限公司 | Piston type anti-disturbance water meter |
| CN110017880A (en) * | 2019-05-17 | 2019-07-16 | 聊城市农业机械科学研究所 | A kind of Watermeter for preventing surplus rotation and its working method |
| CN111141351A (en) * | 2020-01-20 | 2020-05-12 | 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 |
-
2005
- 2005-11-11 CN CN 200520116353 patent/CN2847233Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737927A (en) * | 2014-12-12 | 2016-07-06 | 西安北斗星数码信息股份有限公司 | Piston type anti-disturbance water meter |
| CN110017880A (en) * | 2019-05-17 | 2019-07-16 | 聊城市农业机械科学研究所 | A kind of Watermeter for preventing surplus rotation and its working method |
| CN110017880B (en) * | 2019-05-17 | 2024-04-05 | 聊城市农业科学院 | Anti-idle rotation water meter and working method thereof |
| CN111141351A (en) * | 2020-01-20 | 2020-05-12 | 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061213 Termination date: 20091211 |