CN209230691U - A kind of flow-metering mechanism - Google Patents
A kind of flow-metering mechanism Download PDFInfo
- Publication number
- CN209230691U CN209230691U CN201822034690.9U CN201822034690U CN209230691U CN 209230691 U CN209230691 U CN 209230691U CN 201822034690 U CN201822034690 U CN 201822034690U CN 209230691 U CN209230691 U CN 209230691U
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- Prior art keywords
- oblique
- flow
- inner ring
- measurement chamber
- blade
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000001746 injection moulding Methods 0.000 claims abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
A kind of flow-metering mechanism, including sealing plate, blade wheel and measurement chamber.Measurement chamber is integrated injection molding structure, with the inner ring and outer rings being arranged concentrically, inner ring is circumferentially provided with multiple oblique deflector holes, outer ring is circumferentially provided with multiple oblique apopores, filter screen is formed on the bottom within inner ring, interior top surface of ring has positioning cover plate, and entire measure is equipped with sealing plate on chamber and positioning cover plate.Blade wheel is rotary wind type, is assemblied between positioning plate and sealing plate by the shaft at center, and the oblique blade of blade wheel puts in the space between the inner ring and outer rings of measurement chamber, and the oblique deflector hole in the rotation direction inner ring of oblique blade is oppositely oriented.When water flow by flow-metering mechanism bottom through measurement bottom of chamber portion filter screen enter measurement chamber after, it is measured the oblique deflector hole of intracavitary ring and forms the impact blade rotation of multi-strand flow tangent line, sensing element rotation is also driven simultaneously, is then out the outer ring of measurement chamber, completes flow measurement.The utility model has many advantages, such as that small in size, structure is simple, rotation is steady, high sensitivity.
Description
Technical field
The utility model belongs to field of liquid flow measurement, for fluid measurement more particularly to the meter of water meter and oil meter
Amount.
Background technique
Flow-metering mechanism widely applies to water meter, oil meter etc. and needs in the device of fluid metering, traditional mechanical flow
Measuring mechanism is measured, is divided to multistream and single channel two classes in structure.By taking China is using more family water meter as an example.China at present
In the family water meter of resident, mainly using multistream water meter, in such water meter, the water flowed into water meter flows through impeller box
The deflector hole of lower row shunts guiding, forms multi-strand flow and impacts impeller rotation along a tangential direction, water is then discharged from impeller box
Hole outflow, that is to say, that the direction of motion of the water flow in impeller box is low in and high out, and advantage is that the rotation of impeller stress balance is steady
It is fixed, support the top even wearing of impeller.The disadvantage is that watchcase be divided to up and down two runners, the volume of water meter is big, water flow in table it is low into
It is higher by and increases head loss.
And in single channel water meter, only one oblique inlet opening of shell of water flowmeter and an oblique apopore, water flow enter water
After table, the impact impeller rotation of one stream of water tangent line is formed, is then flowed out through the oblique apopore of watchcase.Advantage is water (flow) direction same
Layer movement, so water meter is small in size.The disadvantage is that one stream of water impact impeller forms uneven wear, the Durability of water meter is made to contract
It is short.
Summary of the invention
The utility model In view of the above shortcomings of the prior art, designs a kind of flow-metering mechanism, to measurement chamber knot
Structure optimizes, and is both able to achieve multistream, reduces blade foot wheel abrasion, and is able to achieve water (flow) direction in same layer, reduces machine
Structure volume.
The technical solution of the utility model is as follows:
A kind of flow-metering mechanism, including sealing plate, blade wheel and measurement chamber.The measurement chamber is integrated injection molding knot
Structure, has the inner ring and outer rings that are arranged concentrically, and inner ring is circumferentially provided with multiple oblique deflector holes, and outer ring, which is circumferentially provided with, multiple tiltedly to be gone out
Water hole, oblique deflector hole is identical with the rotation direction of oblique apopore, measures bottom of the chamber within inner ring and water hole is distributed with, form filtering
Net.The interior top surface of ring of measurement chamber is provided with positioning cover plate.Sealing plate, the leaf are equipped on entire measurement chamber and positioning cover plate
Piece wheel is rotary wind type, is assemblied between positioning plate and sealing plate by the shaft at center, and rotation sensing element is housed on blade wheel,
The oblique blade of blade wheel puts in the space between the inner ring and outer rings of measurement chamber, in the inner ring of the rotation direction of oblique blade and measurement chamber
Oblique deflector hole is oppositely oriented；When water flow by flow-metering mechanism bottom through measurement bottom of chamber portion filter screen enter measurement chamber after, through surveying
It measures the oblique deflector hole of intracavitary ring and forms the impact blade rotation of multi-strand flow tangent line, while also driving sensing element rotation, be then out
The outer ring of chamber is measured, i.e. completion flow measurement.
Preferably, the oblique deflector hole of the inner ring and the oblique apopore of outer ring are that tangential direction circumferentially is uniformly set
It sets.
Further preferably, oblique deflector hole setting 6-10 of the inner ring, apopore setting 4-8 of outer ring.
Further, the blade wheel is disc-shape, is rotated centered on shaft.The blade wheel has a disk,
Center is equipped with shaft, and the disk lower end of blade wheel is provided with muti-piece and circumferentially equally distributed oblique blade, and perpendicular to disk
End face.
Further, the positioning cover plate is fixedly supported on the filter screen in measurement bottom of chamber portion with attachment screw.
The utility model by design there is the integral molded plastic of inner ring and outer rings to measure chamber, and oblique water conservancy diversion is arranged in inner ring
Oblique apopore is arranged in hole on outer ring, and measurement bottom of chamber portion arranges filter screen, this structure is a single piece, can optimize injection molding
Moulding process, it is compact-sized, reduce the volume of measuring mechanism.Blade wheel is assemblied in the shaft between positioning plate and sealing plate,
Blade wheel is disc-shape, is rotated centered on shaft, and when work generates rotary inertia, and blade wheel rotation is made to have stationarity,
The sensitivity of measuring mechanism can be improved.
Detailed description of the invention
Fig. 1 this flow-metering mechanism cross-sectional view；
Fig. 2 wherein measures the top view of chamber；
Fig. 3 wherein blade wheel main view；
Fig. 4 wherein blade wheel bottom view.
Specific embodiment
The structure of the utility model is further described below in conjunction with the drawings and specific embodiments:
Referring to Fig. 1, a kind of flow-metering mechanism, including sealing plate (1), blade wheel (2), positioning cover plate (3) and measurement chamber (4)
Deng.
In conjunction with Fig. 2 as it can be seen that the measurement chamber (4) is integrated injection molding structure, there is inner ring (4b), outer ring (4d) and mistake
Strainer (4a).Inner ring (4b) and outer ring (4d) are arranged in concentric circles, the space come within inner ring (4b) for water flow, inner ring (4b)
The blade of blade wheel (2) and the space of water impact blade rotation are accommodated between outer ring (4d).It is circumferentially set in inner ring (4b)
It is equipped with multiple oblique deflector holes (4c), it is circumferentially arranged on outer ring (4d) to have multiple oblique apopores (4e), deflector hole (4c) and tiltedly go out
Water hole (4e) rotation direction is identical.Chamber (4) bottom is measured by the filter screen (4a) of multiple keyhole formations, is integral with measurement chamber (4).
The positioning cover plate (3) is mounted on upper end inner ring (4b) of measurement chamber (4), covers inner ring, positioning cover plate (3) center
There is an axis hole.
The sealing plate (1) is assemblied on the outer ring (4d) of measurement chamber (4), covers entire measurement chamber (4) and positioning cover plate
(3), there is an axis hole at sealing plate (1) center.
The blade wheel (2) is rotary wind type, is assemblied between positioning plate (3) and sealing plate (1) by shaft, blade wheel
(2) oblique blade (2d) puts in the space between the inner ring (4b) and outer ring (4d) of measurement chamber (4), and blade wheel is equipped with rotation and passes
Sensing unit (2a).
In the utility model further embodiment, in conjunction with Fig. 3 and Fig. 4 as it can be seen that blade wheel (2) has a disk
(2c), axle center are equipped with shaft (2b), and upper end is equipped with magnetic sensing element, and the disk (2c) of blade wheel (2) is provided with equally distributed 7
The oblique blade of block (2d) and perpendicular to the end face of disk (2c), leading in the rotation direction and measurement chamber (4) inner ring (4b) of oblique blade (2d)
Discharge orifice (4c) is oppositely oriented.Blade wheel (2) is located at measurement chamber (4) mounted in the upper end of measurement chamber (4), the oblique blade (2d) of its 7 pieces
Space between inner ring (4b) and outer ring (4d).
In the utility model further embodiment, the oblique deflector hole (4c) of inner ring (4b) is tangential direction circumferentially
It is uniformly arranged.Preferably, the oblique deflector hole (4c) of inner ring (4b) is arranged 8.
In the utility model further embodiment, the apopore (4e) of outer ring (4d) is also tangential direction circumferentially
It is uniformly arranged.As being preferably provided with, the apopore (4e) of outer ring (4d) is arranged 6.
As in another embodiment of the utility model, one is equipped at the center of the filter screen (4a) of measurement chamber (4) bottom
Newel, positioning cover plate (3) connect newel with attachment screw (5), are fixedly supported on filter screen (4a).
When mechanism works, fluid enters the intracavitary annular space of measurement from the filter screen of measuring mechanism bottom, again passes through measurement
Deflector hole on intracavitary ring forms the impact blade wheel rotation of multistream tangent line, and the sensing element of blade wheel upper end also synchronizes at this time
Rotation is then out the outer ring deflector hole of measurement chamber, circuits sequentially completion measurement.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (6)
1. a kind of flow-metering mechanism, including sealing plate (1), blade wheel (2) and measurement chamber (4)；It is characterized in that, the measurement chamber
(4) it is integrated injection molding structure, there is the inner ring (4b) being arranged concentrically and outer ring (4d), inner ring (4b) is circumferentially provided with multiple
Oblique deflector hole (4c), outer ring (4d) are circumferentially provided with multiple oblique apopores (4e), oblique deflector hole (4c) and oblique apopore (4e)
Rotation direction is identical, measures the bottom of chamber (4) within inner ring (4b) and water hole is distributed with, formed filter screen (4a)；In measurement chamber (4)
The top surface inner ring (4b) be provided with positioning cover plate (3)；Sealing plate (1) is equipped on entire measurement chamber (4) and positioning cover plate (3)；
The blade wheel (2) is rotary wind type, is assemblied between positioning cover plate (3) and sealing plate (1) by the shaft at center, on blade wheel
Equipped with rotation sensing element (2a), the oblique blade (2d) of blade wheel (2) put in measurement chamber (4) inner ring (4b) and outer ring (4d) it
Between space, the rotation direction of oblique blade (2d) and the oblique deflector hole (4c) measured in the inner ring (4b) of chamber (4) are oppositely oriented；Work as water flow
By flow-metering mechanism bottom after measurement bottom of chamber portion filter screen enters measurement chamber, is measured the oblique deflector hole of intracavitary ring and form multiply
Water flow tangent line impacts blade rotation, while also driving sensing element rotation, is then out the outer ring of measurement chamber, completes flow and surveys
Amount.
2. flow-metering mechanism according to claim 1, which is characterized in that the oblique deflector hole (4c) of the inner ring (4b) and
The tangential direction of the oblique apopore (4e) of outer ring (4d) circumferentially is uniformly arranged.
3. flow-metering mechanism according to claim 2, which is characterized in that the oblique deflector hole (4c) of the inner ring (4b) is set
6-10 are set, oblique apopore (4e) setting 4-8 of outer ring (4d).
4. -3 described in any item flow-metering mechanisms according to claim 1, which is characterized in that the blade wheel is disc
Shape rotates centered on shaft；
The blade wheel (2) has a disk (2c), and center is equipped with shaft (2b), and the disk lower end (2c) of blade wheel (2) is arranged
There are muti-piece and circumferentially equally distributed oblique blade (2d), and perpendicular to the end face of disk (2c).
5. -3 described in any item flow-metering mechanisms according to claim 1, which is characterized in that the positioning cover plate (3) is used
Attachment screw (5) is fixedly supported on the filter screen (4a) of measurement chamber (4) bottom.
6. -3 described in any item flow-metering mechanisms according to claim 1, which is characterized in that the rotation sensing element is
It is driven magnet ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822034690.9U CN209230691U (en) | 2018-12-05 | 2018-12-05 | A kind of flow-metering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822034690.9U CN209230691U (en) | 2018-12-05 | 2018-12-05 | A kind of flow-metering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209230691U true CN209230691U (en) | 2019-08-09 |
Family
ID=67506374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822034690.9U Withdrawn - After Issue CN209230691U (en) | 2018-12-05 | 2018-12-05 | A kind of flow-metering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209230691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387251A (en) * | 2018-12-05 | 2019-02-26 | 重庆智慧水务有限公司 | A kind of flow-metering mechanism |
| CN113701842A (en) * | 2021-08-20 | 2021-11-26 | 宁波水表(集团)股份有限公司 | Water meter with adjustable flow characteristic |
-
2018
- 2018-12-05 CN CN201822034690.9U patent/CN209230691U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387251A (en) * | 2018-12-05 | 2019-02-26 | 重庆智慧水务有限公司 | A kind of flow-metering mechanism |
| CN109387251B (en) * | 2018-12-05 | 2023-12-26 | 重庆智慧水务有限公司 | Flow measuring mechanism |
| CN113701842A (en) * | 2021-08-20 | 2021-11-26 | 宁波水表(集团)股份有限公司 | Water meter with adjustable flow characteristic |
| CN113701842B (en) * | 2021-08-20 | 2023-12-12 | 宁波水表(集团)股份有限公司 | Water meter with adjustable flow characteristics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A flow measurement mechanism Effective date of registration: 20201104 Granted publication date: 20190809 Pledgee: CHONGQING QIANWEI SCIENCE & TECHNOLOGY GROUP Co.,Ltd. Pledgor: CHONGQING INTELLIGENCE WATER Co.,Ltd. Registration number: Y2020500000015 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211029 Granted publication date: 20190809 Pledgee: CHONGQING QIANWEI SCIENCE & TECHNOLOGY GROUP Co.,Ltd. Pledgor: CHONGQING INTELLIGENCE WATER CO.,LTD. Registration number: Y2020500000015 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190809 Effective date of abandoning: 20231226 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190809 Effective date of abandoning: 20231226 |