CN2420622Y - Water current sensor - Google Patents
Water current sensor Download PDFInfo
- Publication number
- CN2420622Y CN2420622Y CN 00214162 CN00214162U CN2420622Y CN 2420622 Y CN2420622 Y CN 2420622Y CN 00214162 CN00214162 CN 00214162 CN 00214162 U CN00214162 U CN 00214162U CN 2420622 Y CN2420622 Y CN 2420622Y
- Authority
- CN
- China
- Prior art keywords
- conical valve
- valve core
- water flow
- water
- sensing unit
- 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
Links
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- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a water current sensor comprising a valve body and a fixing seat. A conical valve core is arranged in a water inlet hole in the valve body, a conical valve sleeve is arranged out of the conical valve core, and a spring used for fixing the conical valve core and the conical valve sleeve is arranged between the conical valve core and the conical valve sleeve. The conical valve core is provided with a water inlet channel, and the bottom of the water inlet channel is provided with a water flow spray nozzle, and the water flow spray nozzle points at a blade wheel. Because the conical valve core and the conical valve sleeve are arranged in the water inlet hole, under the condition of little water flow and little pressure, the water flow can flow into the conical valve core from the water inlet channel of the conical valve core and can be ejected out from the water flow spray nozzle so as to form water flow with large pressure to impact blades. Under the condition of little water flow, the conical valve core and the conical valve sleeve arranged in the water inlet hole can also cause the blades to rotate, and the sensitivity of the utility model is enhanced.
Description
The utility model belongs to energy perception flow information of water and with the output of switching signal form, Shu Chu switching signal frequency is with the big or small device that changes of flow rate of water flow simultaneously.
Before the utility model is made, existing water flow sensing unit all is that an inlet opening and apopore are arranged, the water impact impeller that enters from the inlet opening, magnet ring rotation on the impeller rotation impeller, make valve body external fixation seat produce the excitation effect, the size that produces electric current according to the excitation effect can be judged the water yield size by water flow sensing unit.But existing this sensor is because the inlet opening is bigger, and the pressure that hour often can occur current when the water yield of passing through is too little, and the impulsive force of generation is not enough, and impeller is rotated, and has so just influenced the sensitivity of this sensor.Simultaneously because the holder of this water flow sensing unit produces the excitation effect, and holder is arranged on the valve body outside, and magnet ring is arranged on valve inner, because holder has certain thickness, so holder can stop a part of magnetic line of force and pass, and also can influence the sensitivity of water flow sensing unit.
The purpose of this utility model is for addressing the above problem, to provide a kind of highly sensitive water flow sensing unit.
For achieving the above object, the utility model is to realize like this, a kind of water flow sensing unit, comprise valve body and holder, wherein valve body is provided with inlet opening, apopore and holder support, and impeller is set in the valve body, be built-in with magnet ring at impeller upper fixed seat support, described valve inleting water hole is built-in with poppet valve core, and poppet valve core is equipped with the cone valve cover outward, is equipped with the spring that is used for fixing them between described poppet valve core and the cone valve cover; Described poppet valve core is provided with intake tunnel, and the bottom of this intake tunnel is provided with water jet, and this water jet points to impeller.
Face is milled in the excitation sidewall setting of above-mentioned water flow sensing unit holder support.
The diameter of above-mentioned water jet is less than the diameter of intake tunnel.
Advantage of the present utility model and good effect are, poppet valve core and cone valve cover is set like this under the little situation of the few pressure of current in the inlet opening, current enter this poppet valve core from the intake tunnel of poppet valve core, from the water jet ejection, form the big water impact blade of pressure then; Make under the few situation of current and still can make blade rotation, improved sensitivity.Be installed on the holder support owing to holder simultaneously, excitation element on the holder is pressed close to this support, this support and excitation element press close to the place sidewall since with milling cutter with the wall thickness attenuation, so that excitation element and magnet ring from nearer, and very little to the influence of the magnetic line of force, make the excitation effect very sensitive; Thereby improved the sensitivity of whole sensor.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the main cut-open view of an embodiment of the utility model;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is an embodiment valve body of a utility model front view;
Fig. 4 is the C-C cut-open view of Fig. 3.
As shown in Figure 1 and Figure 2, a kind of water flow sensing unit comprises valve body 1 and holder 2, and wherein valve body is provided with inlet opening 3, apopore 4 and holder support 12; Holder 2 is installed on the holder support, and is fixing with nut 14; Holder is provided with excitation element 15, and the excitation element is by signal wire gang socket 16 outputs.Impeller 5 is set in the valve body, and on impeller, the inside of holder support is equipped with magnet ring 6.Be built-in with poppet valve core 7 in valve inleting water hole 3, the poppet valve core 7 outer cone valve covers 8 that are equipped with; Be equipped with the spring 9 that is used for fixing them between poppet valve core 7 and the cone valve cover 8, make poppet valve core 7 and cone valve cover 8 can under certain pressure, do inside and outside relative motion; Described poppet valve core 7 is provided with intake tunnel 10, and the bottom of this intake tunnel is provided with water jet 11, and the diameter of water jet 11 is less than the diameter of intake tunnel; Usually the diameter of water jet is smaller, is convenient to can eject bigger hydraulic pressure entering under the minimum current hydraulic pressure, and this water jet points to impeller, makes the current of nozzle ejection can impact impeller, makes wheel rotation.As shown in Figure 3, Figure 4, for the excitation element that reduces holder and the distance between the magnet ring, reduce the ability that the holder support stops the magnetic line of force simultaneously, simultaneously under the prerequisite that does not influence the support bulk strength, mill one at the sidewall 12A place that water flow sensing unit holder support 12 is pressed close to the excitation element with milling cutter and mill face 13.
Claims (3)
1. water flow sensing unit, comprise valve body (1) and holder (2), wherein valve body is provided with inlet opening (3), apopore (4) and holder support (12), impeller (5) is set in the valve body, be built-in with magnet ring (6) at impeller upper fixed seat support, it is characterized in that: described valve inleting water hole (3) is built-in with poppet valve core (7), and poppet valve core (7) is outer to be equipped with cone valve cover (8), is equipped with the spring (9) that is used for fixing them between described poppet valve core (7) and the cone valve cover (8); Described poppet valve core (7) is provided with intake tunnel (10), and the bottom of this intake tunnel is provided with water jet (11), and this water jet points to impeller.
2. water flow sensing unit according to claim 1 is characterized in that: the setting of the excitation sidewall (12A) of above-mentioned water flow sensing unit holder support (12) is milled face (13).
3. water flow sensing unit according to claim 1 and 2 is characterized in that: the diameter of above-mentioned water jet (11) is less than the diameter of intake tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214162 CN2420622Y (en) | 2000-04-06 | 2000-04-06 | Water current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214162 CN2420622Y (en) | 2000-04-06 | 2000-04-06 | Water current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2420622Y true CN2420622Y (en) | 2001-02-21 |
Family
ID=33580331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00214162 Expired - Fee Related CN2420622Y (en) | 2000-04-06 | 2000-04-06 | Water current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2420622Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008119204A1 (en) * | 2007-03-30 | 2008-10-09 | Tianjin Kailida Control Technology Development Co., Ltd | A water dropping flow sensor |
| CN102661762A (en) * | 2012-05-15 | 2012-09-12 | 江苏正本净化节水科技实业有限公司 | Flow sensor |
| CN104534164A (en) * | 2014-10-24 | 2015-04-22 | 无锡乐华自动化科技有限公司 | Efficient control flow speed valve |
-
2000
- 2000-04-06 CN CN 00214162 patent/CN2420622Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008119204A1 (en) * | 2007-03-30 | 2008-10-09 | Tianjin Kailida Control Technology Development Co., Ltd | A water dropping flow sensor |
| CN102661762A (en) * | 2012-05-15 | 2012-09-12 | 江苏正本净化节水科技实业有限公司 | Flow sensor |
| CN102661762B (en) * | 2012-05-15 | 2014-04-16 | 江苏正本净化节水科技实业有限公司 | Flow sensor |
| CN104534164A (en) * | 2014-10-24 | 2015-04-22 | 无锡乐华自动化科技有限公司 | Efficient control flow speed valve |
| CN104534164B (en) * | 2014-10-24 | 2017-04-12 | 杭州凯维阀门集团有限公司 | Efficient control flow speed valve |
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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 |