CN103105206A - Inner case for impeller type water meter, measurement device for impeller type water meter and impeller type water meter - Google Patents
Inner case for impeller type water meter, measurement device for impeller type water meter and impeller type water meter Download PDFInfo
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- CN103105206A CN103105206A CN2012104611382A CN201210461138A CN103105206A CN 103105206 A CN103105206 A CN 103105206A CN 2012104611382 A CN2012104611382 A CN 2012104611382A CN 201210461138 A CN201210461138 A CN 201210461138A CN 103105206 A CN103105206 A CN 103105206A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides an inner case for an impeller type water meter, a measurement device for the impeller type water meter and an impeller type water meter, wherein the high precision for areas of both large flow and small flow is given consideration and the instrumental error is lowered as much as possible. The base part (10) of the inner case is in the shape of a bottomed cylinder. The intermediate portion of the peripheral outer wall of the inner case, when viewed along the axial (h) direction thereof, is provided with a stepped surface (16). The upper part (130) of the peripheral outer wall of the inner case, positioned above the stepped surface, is radially projected relative to the lower part (131) of the peripheral outer wall of the inner case (130), positioned below the stepped surface. The bottomed cylinder-shaped inner space of the base part is served as a measuring chamber (100). The peripheral outer wall of an inflow path (11) is provided with an opening communicated with the measuring chamber (100). The peripheral outer wall of an outflow path (12) is also provided with an opening communicated with the measuring chamber (100). A through hole (18) is extending axially from the inner surface of the outflow path and is provided with an opening on the stepped surface. An open and close valve (3) is arranged on the inner surface of the outflow path and can be covered onto the flange of the opening of the through hole in an opening or closing state.
Description
Technical field
The present invention relates to wing type meter with inner casing, wing type meter with measuring apparatus and wing type meter.
Background technology
About this water meter, for example known have a TOHKEMY 2010-243442 communique.The water meter of TOHKEMY 2010-243442 communique record is so-called multiple box tangent line stream wing type meter, flow into the tap water of body shell, inflow road by the inner casing downside flows into measuring room, and convolution rising in measuring room when making vane rotary, afterwards, discharge by the outflow road of inner casing upside.By the magnetic coupling between the magnetic gear in the magnet on the main shaft that is arranged on impeller and the measurement instrument case (register box) relative with it, and the rotating speed of impeller is passed to indication mechanism.
Yet, for water meter, specific meter calibrating based on measurement Law checks that regular (JIS:B8570-2) carries out the site error test, and the situation that site error is in acceptance tolerance in the flow range of regulation becomes qualified benchmark, and in recent years, further requirement not only is in the high-precision water meter that acceptance tolerance is interior, also will suppress site error as far as possible little.
In the past, in this water meter, be designed to that periphery front end at impeller becomes tangential direction roughly and the situation of doing the best aspect the high precision int of measuring accuracy in making rotation efficiency raising of impeller etc., low discharge zone is more in the perforation direction that will flow into the road.With respect to this, in order to reduce the site error observed in the flow range of regulation, except the high precision int of the measuring accuracy in the low discharge zone, also must realize the high precision int of the measuring accuracy in large flow region.Particularly, the impact on the various external actions that apply of impeller in rotation such as friction force, rotating energy becomes large with the increase of flow in direct ratioly.Directly say, impeller is subject to the impact of said external effect and has the tendency that is rotated more than can be with actual flow in large flow region, and result produces the problem that site error enlarges.
For the problems referred to above, in the invention that TOHKEMY 2010-243442 communique is put down in writing, it can not be eliminated.For example, the water meter of TOHKEMY 2010-243442 communique record is, in flowing into the road, the weir is set, and by with the downside guiding to measuring room of the part of tap water, eliminates thus the harmful effect that impeller is applied along with the increase of flow.
But, in the invention of TOHKEMY 2010-243442 communique record, finally allow tap water to flow in measuring room, therefore can not eliminate the harmful effect to impeller that is produced by the tap water that flows into fully, therefore can not suppress site error less.
Summary of the invention
Problem of the present invention is, provides can suppress site error less wing type meter with inner casing, wing type meter with measuring apparatus and wing type meter.
Another problem of the present invention is, the wing type meter of high precision int that the high precision int that can take into account the measuring accuracy in the low discharge zone and the measuring accuracy in large flow region be provided with inner casing, wing type meter with measuring apparatus and wing type meter.
In order to solve above-mentioned problem, inner casing of the present invention is for wing type meter, comprise matrix part, measuring room, inflow road and flow out the road.Matrix part is for there being bottom tube-like, and the center section in the perisporium outside of observing vertically has the jump face, than the perisporium outside of the top side of jump face with compare more outstanding to the external diameter direction in the perisporium outside of side on the lower than jump face.Measuring room is the inner space that bottom tube-like is arranged of matrix part.Flow into the road in the perisporium outside upper shed of downside and penetrate into measuring room, flow out the road in the perisporium outside upper shed of upside and penetrate into measuring room.
The present invention, is further characterized in that to comprise through hole and open and close valve with the basic comprising of inner casing except above-mentioned wing type meter.That is, consist of the through hole of inner casing of the present invention, from the inner face that flows out the road along extending axially, and in the upper shed of jump face.Consist of by this, in the situation that in inner casing being received into the body shell of water meter, a part that flow into the tap water in body shell directly can being delivered to by through hole and be flowed out in the road.In other words, work as bypass by making through hole, can be with the part that flow into the tap water in body shell not the measuring room ground by inner casing be sent to the outflow road.
Open and close valve is arranged on the inner face that flows out the road, can openedly and closedly cover the opening ora terminalis of through hole under the state after installation.Consist of by this, through hole is opened and closed.Particularly, in the situation that the tap water of large flow flow in body shell, end for the open and close valve of the openend that stops up through hole, force, pushing force (such as hydraulic pressure) of tap water etc. are arranged by through hole transmission, and corresponding to the force of tap water, pushing force and above-mentioned end is lifted, through hole is open thus.As a result, by the bypass function of the through hole that illustrated, and flow into the part of the tap water in body shell will be not by inner casing measuring room be sent to and flow out the road.
On the other hand, in the situation that the tap water of low discharge flow in body shell, open and close valve is open and become the state that the openend of through hole is held to seal, and therefore flow into tap water in body shell and will be sent to the outflow road the measuring room by inner casing after.
Inner casing of the present invention and body shell, impeller etc. make up and formation wing type meter (water meter).The body shell that consists of water meter of the present invention has inner space, dividing plate and breakthrough part.Observe along short transverse, dividing plate is divided into upside and downside with the inner space.Breakthrough part connects dividing plate along short transverse, with upside water flowing connection of being connected with downside of inner space.
Impeller is accommodated in the measuring room of above-mentioned inner casing, consists of the measuring apparatus of water meter.Inner casing is that the jump face is urged on the opening ora terminalis that touches breakthrough part, cuts off thus the upside of inner space and the water flowing between downside.
As having illustrated, consist of the inner casing of wing type meter of the present invention, except the basic comprising of this inner casing, one of its feature is to comprise through hole and open and close valve.Consist of by this, in the situation that the tap water of large flow flow in body shell, open and close valve is open, thus by the bypass function of through hole, flow into the part of the tap water in body shell will be not measuring room ground by inner casing be sent to the outflow road.That is, the influx in measuring room in large flow region reduces, result, and the harmful effect to impeller of accompanying with the increase of flow is eliminated, and therefore can realize the high precision int of the measuring accuracy in large flow region.
By making open and close valve become nonopen structure in lower than the low discharge zone of large flow region, for example in the situation that the tap water of low discharge flow in body shell, open and close valve is open thus, and becomes the state that an end of through hole is held to seal.As a result, flow into the tap water in body shell, will be sent to after the measuring room by inner casing on the original route (water flowing path) that flows out the road, make vane rotary corresponding to its flow.
As described above, according to the present invention, can provide wing type meter with inner casing, wing type meter with measuring apparatus and wing type meter, due to through hole is opened and closed, therefore can take into account the high precision int of the measuring accuracy in the low discharge zone and the high precision int of the measuring accuracy in large flow region, and can suppress site error less in two flow region.
The effect of invention
As described above, according to the present invention, can access effect as following.
(1) can provide and to suppress site error less wing type meter with inner casing, wing type meter with measuring apparatus and wing type meter.
The wing type meter of high precision int that (2) can provide the high precision int that can take into account the measuring accuracy in the low discharge zone and the measuring accuracy in large flow region with inner casing, wing type meter with measuring apparatus and wing type meter.
About other purpose of the present invention, formation and advantage, describe in further detail with reference to the accompanying drawings.Accompanying drawing is only illustration.
Description of drawings
Fig. 1 is the partial section that the wing type meter of embodiments of the present invention is used inner casing.
Fig. 2 is the sectional view along the 2-2 line of Fig. 1.
Fig. 3 is the sectional view along the 3-3 line of Fig. 1.
Fig. 4 omits a part and partial enlarged drawing that the inner casing of Fig. 1 is represented.
Fig. 5 is the stereographic map that the open and close valve taking-up of Fig. 4 is represented.
Fig. 6 is the stereographic map of the measuring apparatus of embodiments of the present invention.
Fig. 7 means the stereographic map that the decomposition of the measuring apparatus of Fig. 6 is constructed.
Fig. 8 is the partial section of the wing type meter of embodiments of the present invention.
Fig. 9 omits a part and enlarged front view that the use state of wing type meter of the present invention is represented.
Figure 10 omits a part and enlarged front view that the use state of wing type meter of the present invention is represented.
The explanation of symbol
1 inner casing
10 matrix parts
100 measuring rooms
11 flow into the road
12 flow out the road
The perisporium outside of 130 upsides
The perisporium outside of 131 downsides
16 jump faces
18 through holes
195 grooves
3 open and close valves
31 kinks
4 impellers
5 measuring apparatus
6 body shell
601 times side rooms
Side room on 602
61 dividing plates
62 breakthrough parts
The short transverse of the axial and body shell of h inner casing
D radially
Embodiment
In Fig. 1 to Figure 10, same-sign represents identical or appropriate section.In addition, in the explanation of Fig. 1 to Figure 10, the short transverse that axially reaches body shell 6 of inner casing is due to consistent respectively, and therefore all unified representation is symbol h.
The inner casing of Fig. 1 is that for so-called multiple box tangent line stream wing type meter, it comprises matrix part 10, measuring room 100, flows into road 11, outflow road 12 and pivot 2.
Radially d observes, jump face 16 be with the lower ora terminalis of perisporium outside 130 as an end (outer end), with the upper ora terminalis of perisporium outside 131 face as the other end (the inner), and parallel with the outside of peristome 15 or bottom 14.The perisporium of Fig. 1 outside 130 and perisporium outside 131 become coaxial, and 14 observe from the bottom surface, and jump face 16 shows as along the perisporium outside 131 ring-type.
Directly say, measuring room 100 is inner spaces of matrix part 10, divided by perisporium 13 and bottom 14, and by peristome 15 and to outside opening.
Flow into road 11 in perisporium outside 131 upper sheds and penetrate into measuring room 100.As shown in Figure 2, inner casing is, on perisporium outside 131, carried out being formed with on each of a plurality of positions of eight equal parts at c along the circumferential direction and flows into road 11.Flow into road 11 along direction (roughly tangential direction) the perforation perisporium 13 that tilts to intersect with d radially, therefore be taken into the f of water or other fluid from the beginning of inside outside the measuring room 100 by flowing into road 11, corresponding to the perforation direction that flows into road 11, at the downside of measuring room 100 along a direction (for example counterclockwise) convolution.
Flow out road 12 in perisporium outside 130 upper sheds and penetrate into measuring room 100.As shown in Figure 3, inner casing is, on perisporium outside 130, carried out being formed with on each of a plurality of positions of the quartern at c along the circumferential direction and flowed out road 12.Flow out road 12 and flow into road 11 and similarly connect perisporium 13 along tangential direction roughly.Consist of by this, be taken into the interior fluid f of measuring room 100 by flowing into road 11, rise along axial h in counterclockwise convolution in measuring room 100, be discharged to outside measuring room 100 by flowing out road 12 afterwards.
Describe referring again to Fig. 1.The bottom 14 is, is provided with embossing section 17 at the center of inner face, extends radially a plurality of ribs (not shown) from this embossing section 17.Center in embossing section 17 is equipped with metal pivot 2.
The inner casing of Fig. 1 to Fig. 3 is, except above-mentioned wing type meter with the basic comprising of inner casing, one of its feature also is to have through hole 18 (with reference to Fig. 3, Fig. 4) and open and close valve 3 (with reference to Fig. 4, Fig. 5).
Through hole 18 extends along axial h from the inner face that flows out road 12, and in 16 upper sheds of jump face.In more detail, flow out road 12 have two medial surfaces 191 relative on circumferencial direction c, 192 and relative on axial h above 193 and below 194 (with reference to Fig. 4).Below 194 have face zone s (with reference to Fig. 3) in the outside that d radially observes.H observes vertically, and face zone s is the face zone that overlaps with jump face 16.The dotted line of Fig. 3 represents the outline line of perisporium outside 131.
One side's of through hole 18 opening ora terminalis is at face zone s split shed, and from face zone s vertically h connect the upper portion of perisporium 13, and at the face inner opening of jump face 16.Between the lower ora terminalis of the opening ora terminalis of the through hole 18 on jump face 16 and perisporium outside 130, be formed with gap g2.In other words, on jump face 16, more lean on the radially part in the outside of d at the opening ora terminalis than through hole 18, guaranteeing has the face zone corresponding with gap g2.Gap g2 becomes and puts surplus (putting the space) when being installed to inner casing in the body shell of water meter.
Flow out road 12 and have the groove 195 continuous with following 194 on medial surface 191.This groove 195 works as the matrix telescoping part of open and close valve 3, extends in medial surface 191 upper sheds and along circumferencial direction c.
The open and close valve 3 of Fig. 4 and Fig. 5 is arranged on the inner face that flows out road 12, can openedly and closedly cover the opening ora terminalis of through hole 18 under the state after installation.Open and close valve 3 is to have flexible plate body, and the viewpoint from corrosion resistance, elasticity, material cost etc. consists of with metal materials such as aluminium.Observe from axial h, open and close valve 3 is with 130 the curvature bending along the perisporium outside.
And open and close valve 3 has kink 31 at an end of long side direction, fixes by kink 31 is inserted in groove 195.The kink 31 of Fig. 4 is, works as the convex telescoping part with respect to groove 195, and the inside dimension of the groove 195 of observing corresponding to h vertically forms, and is pressed in groove 195.
Fig. 6 is the stereographic map of the measuring apparatus of embodiments of the present invention, and Fig. 7 means the stereographic map that the decomposition of the measuring apparatus of Fig. 6 is constructed.The measuring apparatus of Fig. 6 and Fig. 7 is to become the part of the flow of water or other fluid f from the beginning being carried out the mechanism of instrumentation in wing type meter, comprises the inner casing 1 and the impeller 4 that have illustrated referring to figs. 1 through Fig. 5.
The impeller 4 of Fig. 6 and Fig. 7 is synthetic resin system, has main shaft 40, a plurality of blade 41 and driving side magnet 42, is configured in measuring room 100 by peristome 15, is subject in measuring room 100 fluid pressure of the fluid f that flows and rotates.
A plurality of blades 41 stretch out on the outer peripheral face of the main shaft 40 that is formed on h extension vertically.A plurality of blades 41 become smooth tab shape, and extend as the crow flies towards d radially the position of from c along the circumferential direction, main shaft 40 having been carried out seven deciles.
Driving side magnet 42 is arranged on the upper end of main shaft 40, and consists of magnetic coupling with slave end magnet in measurement instrument case described later 8.
Fig. 8 is the partial section of the wing type meter of embodiments of the present invention.In addition, Fig. 9 and Figure 10 represent a part amplification front view of the use state of wing type meter of the present invention.
The water meter of Fig. 8 is so-called multiple box tangent line stream wing type meter, comprises measuring apparatus 5 and body shell 6.Therefore body shell 6 is known component parts in this wing type meter, describes simply below.
The body shell 6 of Fig. 8 has the structure of having assembled foundry goods upper casing 66 on the upper surface of foundry goods lower casing 65.Foundry goods lower casing 65 extends inflow pipe section 63 and the effuser section 64 of being provided with in the opposite direction on the outer peripheral face of the open cylindrical portion in upper end.By this structure, in the situation that connected water channel supervisor (being represented by dot-and-dash line) respectively in inflow pipe section 63 and effuser section 64, from the beginning water or other fluid f can be from inflow pipe section 63 by the inner space of body shell 6 to effuser section 64 flowing water continuously.
The inner space of foundry goods lower casing 65 is divided into from the inflow pipe section 63 lower side room 601 of extending downwards and the upper side rooms 602 that are positioned at 601 tops, lower side room by dividing plate 61.Breakthrough part 62 connects dividing plate 61 along short transverse h, with upper side room 602 and the 601 water flowing ground connections of lower side room.
On the other hand, foundry goods upper casing 66 has opening port 67 and lid 68.Opening port 67 is in the upper end open of foundry goods upper casing 66, and communicates with upper side room 602.Lid 68 can openedly and closedly cover opening port 67.
Measuring apparatus 5 is directed to body shell 6 from opening port 67.The inner casing 1 that consists of measuring apparatus 5 is directed to breakthrough part 62 from opening port 67, and the opening ora terminalis butt of jump face 16 and breakthrough part 62 cuts off the water flowing between lower side room 601 and upper side room 602 thus.Impeller 4 is housed in the inside of inner casing 1, and impeller 4 is subject to by flowing into road 11 rotating at the pressure of the interior mobile fluid f of inner casing 1.
The inner casing 1 that the measuring apparatus 5 of Fig. 8 is illustrated except reference Fig. 7 and the assembly of impeller 4, also comprise measurement instrument case 8.Therefore measurement instrument case 8 is known component parts in this wing type meter, describes simply below.
About the streamflow instrumentation operation of having used wing type meter shown in Figure 8 be, in the situation that water channel supervisor (being represented by dot-and-dash line) is connected to inflow pipe section 63 and is connected with the fire hose is first-class via the effuser section 64 of water channel pipe arrangement (being represented by dot-and-dash line) with the downstream, when when open water swivel, tap water being flowed out from water swivel, remove the tap water of impurity by filtrator 7, flowed into measuring room 100 from inflow pipe section 63 via lower side room 601.At this moment, flow into the fluid f of measuring room 100, rise when the inside of measuring room 100 is rolled into whirlpool and flow out to side room 602 from flowing out road 12, and discharge by effuser section 64.Herein, impeller 4 is rotated as the axle center take pivot 2 by the pressure of fluid f.The rotation of impeller 4 is delivered to slave end magnet from driving side magnet 42, and the rotation of slave end magnet is delivered to totally indicating mechanism via gear mechanism.
Yet, although be illustrated, but for water meter, specific gauging instrument calibrating based on measurement Law checks that regular (JIS:B8570-2) carries out the site error test, and the situation that site error is in acceptance tolerance in the flow range of regulation becomes qualified benchmark, and in recent years, further requirement not only is in the high-precision water meter that acceptance tolerance is interior, also will suppress site error as far as possible little.
Usually, in this water meter, be designed in the perforation direction that will flow into road 11 that periphery front end at impeller 4 becomes tangential direction roughly etc., do the best aspect high precision int in considering the mobile less low discharge zone of the rotation efficiency of impeller 4 and water.With respect to this, in order to reduce the site error observed in the flow range of regulation, except the high precision int of the measuring accuracy in the low discharge zone, also must realize the high precision int of the measuring accuracy in large flow region.Particularly, the impact on the various external actions that apply of impeller 4 in rotation such as friction force, rotating energy becomes large with the increase of flow in direct ratioly.Directly say, impeller 4 is subject to the impact of said external effect and has the tendency that is rotated more than can be with actual flow in large flow region, and result produces the problem that site error enlarges.
As the prior art that addresses the above problem, for example has following technology: have the weir in flowing into the road, with the downside guiding to measuring room 100 of the part of fluid f, eliminate thus the harmful effect to impeller 4 by the weir.But, in this case, finally allow fluid f to flow in measuring room 100, can not eliminate the harmful effect to impeller 4 that is produced by the fluid f that flows into fully, therefore can not suppress site error less.
With respect to this, the inner casing of Fig. 1 to Fig. 5, the measuring apparatus of Fig. 6 to Fig. 7 and used the water meter of their Fig. 8 with the basic comprising of inner casing 1, also comprise through hole 18 and open and close valve 3 except wing type meter, can address the above problem thus.
At first, in the inner casing 1 that consists of wing type meter, through hole 18 extends along axial h from the inner face that flows out road 12, and in 16 upper sheds of jump face.Consist of by this, in the situation that during inner casing 1 is received into body shell 6, a part that flow into the fluid f in body shell 6 directly can be delivered to by through hole 18 and be flowed out in road 12.In other words, work as bypass by making through hole 18, the part that flow into the fluid f in body shell 6 can be sent to by measuring room 100 ground and flow out road 12.Therefore, the influx in measuring room 100 reduces, and result can be eliminated the harmful effect that impeller 4 is produced along with the increase of flow, therefore can realize the high precision int of the measuring accuracy in large flow region.
And inner casing 1 has open and close valve 3, and open and close valve 3 is arranged on the inner face that flows out road 12, can openedly and closedly cover the opening ora terminalis of through hole 18 under the state after installation.Consist of by this, through hole 18 is opened and closed.Particularly, in the situation that the fluid f of large flow flow in body shell 6, as shown in Figure 9, end for the open and close valve 3 of the openend that stops up through hole 18, transmit force, pushing force (such as hydraulic pressure) of fluid f etc. by through hole 18, and corresponding to the force of fluid f, pushing force and above-mentioned end is lifted, through hole 18 is open thus.As a result, by the bypass function of the through hole 18 that illustrated, and can realize the high precision int of the measuring accuracy in large flow region.
On the other hand, in the situation that the fluid f that flow in body shell 6 is the low discharge zone lower than large flow region, as shown in figure 10, open and close valve 3 is not open, therefore and the state that the openend that becomes through hole 18 is held to seal flow into fluid f in body shell 6 and is sent to by measuring room 100 and flows out road 12.As a result, the fluid f that flow in body shell 6 is being sent to by measuring room 100 on the original route (water flowing path) that flows out road 12 from flowing into road 11, makes impeller 4 rotations corresponding to its flow.Therefore, guarantee measuring accuracy in the low discharge zone.
As mentioned above, the inner casing 1 that consists of wing type meter can make according to the size of flow through hole 18 open and close, therefore can take into account the high precision int of the measuring accuracy in the low discharge zone and the high precision int of the measuring accuracy in large flow region, and can suppress site error less in two flow region.
Above, with reference to preferred embodiment, content of the present invention is specifically described, but to those skilled in the art, it is apparent can adopting various modes of texturing according to basic fundamental thought of the present invention and enlightenment.For example, in the explanation of Fig. 1 to Figure 10, through hole 18 and can openedly and closedly cover the open and close valve 3 of the opening ora terminalis of through hole 18 also can be arranged in a plurality of outflows road 12.
In addition, open and close valve 3 can come adjustable elastic or regulate insertion distance in the groove 195 etc. by selection material, can be set as aptly thus in the low discharge zone lower than large flow region not move.
Claims (4)
1. wing type meter inner casing comprises matrix part, measuring room, inflow road, flows out road, through hole and open and close valve, wherein,
Above-mentioned matrix part is for there being bottom tube-like, and the center section in the perisporium outside of observing vertically has the jump face, than the perisporium outside of the top side of above-mentioned jump face with compare more to radially outstanding the perisporium outside of side on the lower than above-mentioned jump face,
Above-mentioned measuring room is the inner space that bottom tube-like is arranged of above-mentioned matrix part,
Above-mentioned inflow road is in the outside upper shed of the perisporium of above-mentioned downside and penetrate into above-mentioned measuring room,
Above-mentioned outflow road is in the outside upper shed of the perisporium of above-mentioned upside and penetrate into above-mentioned measuring room,
Above-mentioned through hole extends axially along above-mentioned from the inner face on above-mentioned outflow road, and in the upper shed of above-mentioned jump face,
Above-mentioned open and close valve is arranged on the inner face on above-mentioned outflow road, can openedly and closedly cover the opening ora terminalis of above-mentioned through hole under the state after installation,
And above-mentioned outflow road has groove on inner face,
Above-mentioned open and close valve is to have a flexible plate body, has kink at an end of long side direction, fixes by above-mentioned kink is inserted in above-mentioned groove.
2. wing type meter inner casing as claimed in claim 1, wherein,
The peristome of above-mentioned jump face and matrix part or at least one party of bottom are parallel.
3. a wing type meter measuring apparatus, comprise inner casing and impeller, wherein,
Above-mentioned inner casing is the described wing type meter inner casing of claim 1 or 2,
Above-mentioned impeller is accommodated in above-mentioned measuring room.
4. a wing type meter, comprise body shell and measuring apparatus, wherein,
The aforementioned body shell has inner space, dividing plate and breakthrough part,
Observe along short transverse, aforementioned barriers is divided into upside and downside with above-mentioned inner space,
Above-mentioned breakthrough part connects aforementioned barriers along short transverse,
Above-mentioned measuring apparatus is wing type meter measuring apparatus claimed in claim 3,
Above-mentioned inner casing is directed into above-mentioned breakthrough part, and above-mentioned jump face abuts on the opening ora terminalis of above-mentioned breakthrough part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-249924 | 2011-11-15 | ||
| JP2011249924A JP5022511B1 (en) | 2011-11-15 | 2011-11-15 | Inner case for impeller-type water meter, measuring device for impeller-type water meter, and impeller-type water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103105206A true CN103105206A (en) | 2013-05-15 |
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ID=46980526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104611382A Pending CN103105206A (en) | 2011-11-15 | 2012-11-15 | Inner case for impeller type water meter, measurement device for impeller type water meter and impeller type water meter |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5022511B1 (en) |
| KR (1) | KR20130053370A (en) |
| CN (1) | CN103105206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700438A (en) * | 2016-02-05 | 2018-10-23 | 埃尔比国际有限公司 | Device for the flow velocity for measuring the fluid in pipeline |
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| CN113295228A (en) * | 2020-10-16 | 2021-08-24 | 江苏棠梨智能科技有限公司 | A antidrip device for intelligent water gauge |
| CN114777869B (en) * | 2022-04-12 | 2024-08-30 | 宁波东海集团有限公司 | Water meter with interchangeable metering module |
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| JPS57104315U (en) * | 1980-12-18 | 1982-06-26 | ||
| JPS5974338U (en) * | 1982-11-11 | 1984-05-19 | 大阪機工株式会社 | Water meter difference adjustment device |
| JPS5974337U (en) * | 1982-11-11 | 1984-05-19 | 大阪機工株式会社 | Water meter difference adjustment device |
| DE3327796A1 (en) * | 1983-08-02 | 1985-02-14 | Wassermesserfabrik Andrae Gmbh + Co, 7250 Leonberg | Measuring insert for liquid flow-rate meters, in particular domestic water meters |
| JP2938228B2 (en) * | 1991-06-28 | 1999-08-23 | リコーエレメックス株式会社 | Axial flow water meter |
| JP2002310745A (en) * | 2001-04-06 | 2002-10-23 | Ricoh Elemex Corp | Double box tangential flow impeller water meter |
| JP2003083781A (en) * | 2001-09-12 | 2003-03-19 | Kimmon Mfg Co Ltd | Impeller type water meter |
| JP4148446B2 (en) * | 2002-01-10 | 2008-09-10 | 愛知時計電機株式会社 | Water meter and its inner case and inner unit |
| JP5268758B2 (en) * | 2009-04-09 | 2013-08-21 | アズビル金門株式会社 | Impeller water meter |
-
2011
- 2011-11-15 JP JP2011249924A patent/JP5022511B1/en not_active Expired - Fee Related
-
2012
- 2012-11-06 KR KR1020120124831A patent/KR20130053370A/en not_active Application Discontinuation
- 2012-11-15 CN CN2012104611382A patent/CN103105206A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700438A (en) * | 2016-02-05 | 2018-10-23 | 埃尔比国际有限公司 | Device for the flow velocity for measuring the fluid in pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013104819A (en) | 2013-05-30 |
| KR20130053370A (en) | 2013-05-23 |
| JP5022511B1 (en) | 2012-09-12 |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |
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