CN2775616Y - Double drainage anti-drop water meter - Google Patents
Double drainage anti-drop water meter Download PDFInfo
- Publication number
- CN2775616Y CN2775616Y CN 200520003728 CN200520003728U CN2775616Y CN 2775616 Y CN2775616 Y CN 2775616Y CN 200520003728 CN200520003728 CN 200520003728 CN 200520003728 U CN200520003728 U CN 200520003728U CN 2775616 Y CN2775616 Y CN 2775616Y
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- CN
- China
- Prior art keywords
- valve rod
- valve seat
- sides
- valve
- drainage
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a metering device for metering water flow quantity, particularly a water meter which can carry out accurate metering to micro flow quantity. The utility model adopts the technical scheme that a valve seat forming a cylindrical shape is arranged in a water inlet of a water meter housing in which an ordinary meter core is arranged, and a valve rod, a spring, a filter screen and a guide positioning hole are arranged in the valve seat. Both sides of the valve seat are respectively provided with a flow guide hole which can be mutually fitted with holes on both sides of the valve rod; the flow guide holes on both ends are respectively connected with a flow guide hose, and the front ends of the flow guide hoses are provided with a pinhole type nozzle. Because the nozzles of the flow guide hoses are arranged on both sides of an impeller case and are adjacent to the different positions of impeller blades, and the water flows of nozzles on both sides, which are sprayed to the impeller blades, can present initial pushing points in an alternate way; thus, maximum driving force can be generated; the rotation of an impeller can drive a whole transmission mechanism, and the purpose of metering micro flow quantity can be reached thereby.
Description
Affiliated technical field
The utility model relates to a kind of measuring apparatus of measuring discharge, especially can be at the water meter of the accurate metering of tiny flow quantity.
Background technology
The structure of present known water meter is to be made of watchcase, gland, sealing gasket, impeller box, gearcase etc., when user's water, and the water impact wheel rotation, driven gear, list index reach the purpose of metering.But as user during with the water clock mode stolen water of tiny flow quantity, because the gap that exists between gear train and the housing in the table, sluggish flow is not enough to promote wheel rotation by water meter, and water meter then can't measure, and causes a large amount of losses to water-supplying unit.
Summary of the invention
Can not be in order to overcome existing water meter to the deficiency of water clock and tiny flow quantity metering, the utility model provides a kind of pair of drainage anti-leakage water meter, this water meter can not only antidrip, anti-reversing, and can when water droplet leaks, make impeller continuously, stably rotate, to reach the metering purpose.
The technical scheme that its technical matters that solves the utility model adopts: in the water meter shell water inlet of common watch core is housed, establish one and be cylindric valve seat: in be provided with valve rod, spring, filter screen, guide-localization hole; The valve seat both sides respectively are provided with the conduction hole that can coincide mutually with the valve rod two side holes, and the conduction hole of both sides respectively connects a drainage flexible pipe, respectively establish a pin nozzle at drainage flexible pipe front end.The left and right sides, guide-localization hole semicircular in shape on the valve seat makes the valve rod can only be elastic in pilot hole, can not rotate, and is identical mutually with the both sides conduction hole on the valve seat to guarantee the valve rod two side holes; Be provided with the valve rod center pit in the valve rod, be the threeway shape with the valve rod two side holes, valve stem tip is provided with the valve rod front end end cover that matches with valve seat, and valve rod is provided with spring outward, and valve rod bottom valve rod center pit is provided with filter screen outward; The drainage tube nozzle is located at the impeller box both sides, near the blade place, the initial promotion point of the corresponding impeller blade of a side drainage tube nozzle wherein, the centre position of corresponding two impeller blades of opposite side drainage tube nozzle.When current flow out with tiny flow quantity and water clock mode, because spring is to the acting force of valve rod, make valve rod front end end cover and valve seat be closure state, at this moment valve rod two side holes and valve seat both sides conduction hole match, current then pass through filter screen, the valve rod center pit, the valve rod two side holes, valve seat both sides conduction hole, the drainage flexible pipe, penetrate by impeller box both sides drainage tube nozzle, replenish the pressure of water meter inner chamber disappearance rapidly, because the drainage tube nozzle is located at the impeller box both sides near the different position of impeller blade, make the current of two side nozzle directive impeller blades, can alternately present initial promotion point, thereby produce maximum expulsive force, reach tiny flow quantity metering purpose thereby make wheel rotation drive whole gear train.
When the normal water of user, because putting in valve seat the valve rod front end end cover rapidly forward, the pressure increase is opening, thereby closed the current that lead to both sides drainage tube because dislocation takes place for valve rod two side holes and conduction hole this moment, and at this moment water meter is the same with the light water table function.
The beneficial effects of the utility model: compare with single drainage way, increase the reliability of antidrip effect greatly, because the drainage hose nozzle of single drainage way is provided with very thin pin hole, once blockage phenomenon then loses the antidrip function, and the mode of the two drainages of employing, even a side drainage tube stops up, opposite side drainage tube then pressure increases, can promote wheel rotation equally, reach drip-proof purpose; Simultaneously, utilize valve rod to stretch and directly to close valve seat both sides conduction hole, make one-piece construction simple.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the structural map of valve seat inside
Fig. 2 is valve seat figure
Fig. 3 is the valve rod structural map
Fig. 4 is the location drawing of part in watchcase
Among the figure: 1. water meter shell, 2. valve seat, 3. drainage flexible pipe, 4. drainage tube nozzle, 5. impeller box, 6. impeller blade, 7. valve rod front end end cover, 8. spring, 9. filter screen, 10. valve rod center pit, 11. valve rod two side holes, 12. conduction holes, 13. valve rods, 14. guide-localization holes.
Embodiment
In the water inlet of the water meter shell (1) of common water meter, cylindric valve seat (2) is housed, valve rod (13) is housed in the valve seat (2), spring (8), filter screen (9), valve seat (2) both sides are provided with conduction hole (12), respectively connect a drainage flexible pipe (3) at both sides conduction hole (12), drainage tube nozzle (4) is located at the both sides of impeller box (5) near impeller blade (6), there are valve rod center pit (10) and valve rod two side holes (11) to be the threeway state in the valve rod (13), when valve rod front end end cover (7) and valve seat (2) when being closure state, valve rod two side holes (11) matches with the conduction hole (12) of valve seat both sides, when valve rod front end end cover (7) and valve seat (2) when being opening then the conduction hole (12) of valve rod two side holes (11) and valve seat both sides misplace, thereby conduction hole (12) is closed.The left and right sides, guide-localization hole (14) semicircular in shape on the valve seat is controlled valve rod (13) with this, can only stretch to rotate to guarantee that valve rod two side holes (11) and conduction hole (12) match.
Claims (2)
1, a kind of pair of drainage anti-leakage water meter, water inlet is established a valve seat in the light water watchcase, be provided with valve rod in the valve seat, filter screen, spring, the external drainage flexible pipe of valve seat, the drainage hose nozzle is located at the impeller box both sides near the impeller place, and it is characterized in that: valve seat is provided with the both sides conduction hole and is connected with two drainage tubes, the flexible valve seat both sides drainage tube and the valve rod front end end cover of directly opening and closing of valve rod.
2, according to claim 1 pair of drainage anti-leakage water meter, it is characterized in that: valve stem tip is provided with front end end cover, valve rod is provided with the valve rod center pit and the valve rod two side holes is the threeway shape, valve seat guide-localization hole, left and right sides semicircular in shape, valve rod can only be stretched in the hole, can not rotate and guarantee that valve rod two side holes and conduction hole match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520003728 CN2775616Y (en) | 2005-01-19 | 2005-01-19 | Double drainage anti-drop water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520003728 CN2775616Y (en) | 2005-01-19 | 2005-01-19 | Double drainage anti-drop water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775616Y true CN2775616Y (en) | 2006-04-26 |
Family
ID=36749932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520003728 Expired - Fee Related CN2775616Y (en) | 2005-01-19 | 2005-01-19 | Double drainage anti-drop water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775616Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105381A (en) * | 2021-11-08 | 2022-03-01 | 徐州沃力能源科技有限公司 | Collision type uniform cavitation sewage treatment device and method thereof |
-
2005
- 2005-01-19 CN CN 200520003728 patent/CN2775616Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105381A (en) * | 2021-11-08 | 2022-03-01 | 徐州沃力能源科技有限公司 | Collision type uniform cavitation sewage treatment device and method thereof |
| CN114105381B (en) * | 2021-11-08 | 2023-12-26 | 徐州沃力能源科技有限公司 | Collision type uniform cavitation sewage treatment device and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |