CN2921792Y - Water meter for vane belt rectifying device - Google Patents
Water meter for vane belt rectifying device Download PDFInfo
- Publication number
- CN2921792Y CN2921792Y CN 200520010569 CN200520010569U CN2921792Y CN 2921792 Y CN2921792 Y CN 2921792Y CN 200520010569 CN200520010569 CN 200520010569 CN 200520010569 U CN200520010569 U CN 200520010569U CN 2921792 Y CN2921792 Y CN 2921792Y
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- water
- wing wheel
- chamber
- wheel
- rectification
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Abstract
A water meter for vane belt rectifying device, which mainly comprises a measuring mechanism, an indicating device, a shell and a mantle, is primarily characterized by the measuring cavity and the rectifying vane inside the measuring mechanism, wherein, the rectifying vane is arranged in the measuring cavity; the upper part of the measuring cavity is provided with a water outlet; a plurality of feed-water diversion holes taking a wheel axle as center are circlewise distributed evenly at the bottom of the measuring cavity and diverts water flow to the rectifying vane to drive it to rotate; the other ends of the feed-water diversion holes are communicated with a water collection chamber having a water intake covered with a check disc; in addition, the sidewall of the measuring cavity is provided thereon with a plurality of small diversion holes, and the other ends of the small diversion holes and the water intake of the water collection chamber are all communicated with a bowl-shaped filter gauze.
Description
Technical field
The utility model belongs to discharge metering field, and relating in particular to bore is the water meter of 8mm to 50mm.
Background technology
At present, the water meter of living standard of urban and rural population water metering, great majority are to adopt rotor water gauge.The structure of this water meter is that the indicating mechanism that shows is installed on the top in water meter case, and rotary wind type metering mechanism is installed in its underpart.This metering mechanism includes the wing wheel of measuring the chamber and measure discharge in this measurement chamber.This wing wheel have some stress surfaces uniform, each sheet all with the blade of the parallel axes of this wing wheel; The transmission gear that connects with indicating mechanism is arranged on the top of this wing wheel wheel shaft.Measuring on the chamber wall in chamber has several water conservancy diversion inclined holes, and the tangential direction that the current that guiding comes from pod apertures are circumference is punched on the stress surface of blade, to drive the wing wheel rotation; The transmission gear on wing wheel wheel shaft top drives indicating mechanism.Problem is: fast apart from the flow rate of water flow of the near pod apertures of water meter water inlet guiding, dynamic pressure pressure is big in existing these water meters, and slow from the flow rate of water flow of water inlet pod apertures guiding far away, dynamic pressure pressure is little.Like this, concerning wing wheel, it also has been subjected to a radial force that forces its disalignment except that the tangential force that is activated its rotation.So frictional resistance increases, the sensitivity of water meter is not high; Supporting to the wing wheel wheel shaft also causes uneven wear, and wearing and tearing its sensitivity of back further descends again.For example: existing DN15 water meter, when 8L/h is following, just can not rotate substantially, that is to say the pipeline behind the table or the race of water swivel, emit, to drip, leakage can't be measured, and water resource is run off in vain.
Summary of the invention
The purpose of this utility model is, improves the wear-resisting condition between wing wheel and its bolster in water meter measurement performance and the measuring mechanism, and the sensitivity that improves water meter prolongs its serviceable life.
Realize the water meter of a kind of wing wheel band of described purpose fairing, it mainly is made up of measuring mechanism (4), indicating mechanism (3), shell (5), cover (2) etc.Its improvement part is characterised in that the rectifying wings wheel measurement mechanism (4) of table body.
The measurement chamber (6) of water delivering orifice (61) is arranged at its top of measuring mechanism (4), and the bottom of measuring chamber (6) be that the pod apertures (63) that center, uniform several current of annular are guided rectification wing wheel (7) into communicates with measurement chamber (6) with bolster (65).The other end of these pod apertures (63) communicates with a collecting chamber (8a), and the water inlet (82) of this collecting chamber (8a) is in collecting chamber (8a) bottom and coaxial with described rectification wing wheel (7).Covered a check disk (10) on the water inlet (82) in collecting chamber (8a), outside the periphery of this check disk (10) to six vertical uniform gussets (81) of its guiding; That is to say, this check disk (10) can be along gusset (81) slippage up and down, and that its uniform position of several (this case is) is arranged on the circumferential side wall of measuring chamber (6) is lower than measuring chamber (6) water delivering orifice (61), than the high shunting aperture (62) of current being guided into rectification wing wheel (7) vanelets (73) of pod apertures (63).The other end of this shunting aperture (62) all communicates with bowl-type filter screen (9) with described collecting chamber (8a) water inlet (82).
Further improvement of the utility model is, the rectification wing wheel (7) of measuring dress in the chamber (6) is useful on rectification annulus (74), several big blades (72) are arranged in the annulus (74), the face that big blade (72) is hit is the inclined-plane, have this rectification wing wheel (7) is produced axial thrust load angle upwards, the wheel axis of its slanted angle and rectification wing wheel (7) is between 10 °～60 °, outer several vanelets (73) in addition of annulus (74), the face that vanelets (73) is hit is the plane, disclose so far, those skilled in the art can find out fully: the described big blade (72) of water impact rectification wing wheel (7) that attracts from side amount chamber (6) bottom pod apertures (63) is the inclined-plane, drive the direction rotation of rectification wing wheel (7) towards needs, that is to say, the current that attract from pod apertures (63) remove the same with prior art, impact blade and make the wing wheel rotation (obviously, this is main) outside, also have an axial thrust load that the rectification wing wheel is up pushed away, the friction between the bearing of measuring interior bolster (65) in chamber (6) and rectification wing wheel (7) is reduced.
Now in conjunction with the actual measurement process of the utility model in water meter, introduce its superiority: when the water yield of normal use flows to the water inlet (82) of collecting chamber (8a), because the pressure of current is enough big, cover in the check disk (10) on this water inlet (82) top and upwards backed down, because collecting chamber (8a) water inlet (82) is coaxial with rectification wing wheel (7), and pod apertures (63) is that center annular is uniform with rectification wing wheel (7) wheel shaft, so, enter measurement chamber (6) by pod apertures (63), the resultant radial force that impacts the current of the big blade (72) of rectification wing wheel (7) is zero.In other words, what drive rectification wing wheel (7) rotation is pure couple, does not have the sort of radial force that makes wing wheel wheel shaft disalignment of the prior art.Further, the big blade (72) of current on impacting rectification wing wheel (7) that attracts from pod apertures (63) makes its rotation, also has an axial thrust load that rectification wing wheel (7) is up pushed away.Like this, the normal pressure between rectification wing wheel (7) bearing and its lower support axle (65) opposing end faces has just reduced greatly, and friction force has therebetween also reduced naturally widely.The result of comprehensive above-mentioned effect is, in all processes of measuring the water yield, the friction force between rectification wing wheel (7) bearing and its lower support (65) reduces, and it is also little that it and rectification wing wheel (7) are taken turns the frictional resistance of between centers.So the present invention has just had the wearing quality more much higher than existing water meter.When the water yield is little to can not back down check disk (10) time, all current just flow to from shunting aperture (62), water slug rectification wing wheel (7) vanelets (73) that attracts by shunting aperture (62).Because the flow area of this shunting aperture (62) is little, measure chamber (6) wall and rectification wing wheel (7) annulus (74) in addition and form little runner, so, when current therefrom pass through, dynamic pressure increases to some extent, can impact rectification wing wheel (7) rotation again, and the less water yield is measured, play the effect of shunting metering, when tiny flow quantity, still have fabulous sensitivity.Especially under the situation that normally makes water consumption, rectification wing wheel (7) bearing and bolster (65) wearing and tearing are very little, so prolonged its serviceable life.
Description of drawings
Fig. 1 is the general assembly drawing of water meter in the utility model.Check disk among the figure is for backing down state, i.e. the state that the normal current that use are measured (arrow is water (flow) direction among the figure).
Fig. 2 is a measuring mechanism structural drawing of the present utility model among Fig. 1.Check disk among the figure is a closed condition, i.e. the state that weep is measured (arrow is a water (flow) direction among the figure).
Fig. 3 is that the A-A of Fig. 2 is to cut-open view (removing wing wheel).
Fig. 4 is that the B-B of Fig. 2 is to cut-open view (going check disk).
Fig. 5 is the rectification wing wheel of Fig. 3 utility model.
Fig. 6 is the vertical view of Fig. 5.
Embodiment
Again in conjunction with the embodiments and accompanying drawing, the utility model is further described below.
Embodiment 1 (in conjunction with Fig. 1～6)
A kind of water meter of wing wheel band fairing, it mainly is made up of measuring mechanism (4), indicating mechanism (3), shell (5), cover (2) etc.Its improvement part is characterised in that the measuring mechanism (4) of table body and the rectification wing wheel (7) of the interior dress of measuring mechanism (4).Measuring mechanism (4) is installed in the bottom in the water meter case (5), and its top has water delivering orifice (61) to communicate with the water delivering orifice of water meter; The measurement chamber (6) of measuring mechanism (4) and the rectification wing wheel (7) in this measures chamber (6) have 12 pod apertures (63) of current being guided into rectification wing wheel (7) to communicate with measurement chamber (6).Each pod apertures (63) is that center, annular are distributed on the bottom of measuring chamber (6) with bolster (65), the other end of these pod apertures (63) communicates with a collecting chamber (8a), the water inlet (82) of this collecting chamber (8a) is stamped a check disk (10) in collecting chamber (8a) bottom and coaxial with described rectification wing wheel (7) on the water inlet (82) of collecting chamber (8a).Six vertical uniform gussets (81) to its guiding are arranged outside the periphery of this check disk (10); That is to say, this check disk (10) can be along gusset (81) slippage up and down, in addition, a shunting aperture (62) is arranged on the sidewall of measuring chamber (6), the other end of this shunting aperture (62) all communicates with bowl-type filter screen (9) with described collecting chamber (8a) water inlet (82).The transmission gear (71) that driving indicating mechanism (3) are arranged on the wheel shaft top of rectification wing wheel (7).
In the utility model, rectification wing wheel (7) is useful on an annulus (74) of rectification, 13 big blades (72) are arranged in the annulus (74), the face that big blade (72) is hit is the inclined-plane, the angle that this rectification wing wheel (7) is produced axial thrust load is upwards arranged, and its slanted angle and rectification wing wheel (7) wheel axis are 30 °.Outer eight vanelets (73) in addition of annulus (74), the face that vanelets (73) is hit is the plane.Those skilled in the art knows the quantity of pod apertures (63) and blade from the disclosure of " summary of the invention " part and in conjunction with general general knowledge, and described blade lean angle also needs the specification size in conjunction with water meter, and application scenario and other structural parameters are determined.
Claims (2)
1, a kind of water meter of wing wheel band fairing is characterized in that: measurement chamber and rectification wing wheel in the measuring mechanism, rectification wing wheel are contained in to be measured in the chamber; Measure top, chamber and be provided with water delivering orifice, also having several is that center, annular are distributed on the water inlet pod apertures of measuring the bottom, chamber with the wheel shaft, bottom water inlet pod apertures is guided current into the rectification wing wheel makes its rotation, the other end of these pod apertures communicates with a collecting chamber, is stamped a check disk on the water inlet of collecting chamber; In addition, on the sidewall of measuring the chamber several little pod apertures are arranged, the other end of this little pod apertures all communicates with the bowl-type filter screen with described collecting chamber water inlet.
2, according to the water meter of the described a kind of wing wheel band fairing of claim 1, it is characterized in that: the structure of rectification wing wheel is made up of big blade, vanelets, annulus, wheel shaft; The face that big blade is hit is the inclined-plane, and this inclined-plane and wing wheel wheel between centers have the angle that this rectification wing wheel is produced axial thrust load upwards, and this angle is between 10 °～60 °, and the other end of big blade connects with an annulus; In addition, several vanelets are arranged on the annulus outer shroud, the face that vanelets is hit is the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010569 CN2921792Y (en) | 2005-12-21 | 2005-12-21 | Water meter for vane belt rectifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010569 CN2921792Y (en) | 2005-12-21 | 2005-12-21 | Water meter for vane belt rectifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921792Y true CN2921792Y (en) | 2007-07-11 |
Family
ID=38254272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010569 Expired - Fee Related CN2921792Y (en) | 2005-12-21 | 2005-12-21 | Water meter for vane belt rectifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921792Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114816A (en) * | 2017-06-22 | 2019-01-01 | 青岛经济技术开发区海尔热水器有限公司 | Pipeline water flow stabilizing device and gas water heater |
| CN113701839A (en) * | 2021-10-27 | 2021-11-26 | 江苏德高物联技术有限公司 | Water flow pressure detection equipment for water meter |
-
2005
- 2005-12-21 CN CN 200520010569 patent/CN2921792Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114816A (en) * | 2017-06-22 | 2019-01-01 | 青岛经济技术开发区海尔热水器有限公司 | Pipeline water flow stabilizing device and gas water heater |
| CN113701839A (en) * | 2021-10-27 | 2021-11-26 | 江苏德高物联技术有限公司 | Water flow pressure detection equipment for water meter |
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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 |