CN207923222U - A kind of high-accuracy mechanical water meter - Google Patents
A kind of high-accuracy mechanical water meter Download PDFInfo
- Publication number
- CN207923222U CN207923222U CN201820470415.9U CN201820470415U CN207923222U CN 207923222 U CN207923222 U CN 207923222U CN 201820470415 U CN201820470415 U CN 201820470415U CN 207923222 U CN207923222 U CN 207923222U
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- China
- Prior art keywords
- chamber
- water meter
- impeller
- water inlet
- measurement chamber
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Abstract
A kind of high-accuracy mechanical water meter, including shell, impeller and dial plate, it is characterized in that, cavity volume in the shell is divided into level stability chamber and measurement chamber, level stability chamber front lower portion connects water inlet, measurement chamber upper rear end connects water outlet, it is separated by partition between two chambers, and in the upper of partition board, lower end surface position is respectively arranged with the line of rabbet joint of connection a level stability chamber and measurement chamber, its lower face line of rabbet joint position is provided with one piece of oblique deflector, and the impeller is assemblied in the cavity volume, and dial plate is accessed by shaft on top, its blade is angularly disposed, and the tangent plane of the outer contour of angularly disposed blade and the angle of water inlet pipe extended line are 100~120 °.The utility model is simple for process, easy to process, and assembly is easy, and can effectively improve water meter measurement accuracy.
Description
Technical field
The utility model is related to measuring instrument technical field, specially a kind of high-accuracy mechanical water meter.
Background technology
Water meter is mainly used for measuring water flow, and mostly as metering outfit common in industrial production or daily life
It is to be measured to the integrated flow of water, is mounted on water pipe when use, when user discharges water, flow enters in impeller box, punching
Impeller is hit, when the timing of water flow one, driving moment and moment of resistance balance, impeller remain a constant speed rotation, and such impeller just drives
Shaft rotates, to make dial plate start counting up, and the water passed through by pointer on dial plate or character wheel rotation display.
In general, the impeller inner core in existing water meter is assemblied in the cavity structure of shell, certainly due to impeller
Weight, it will usually lose a part of torque to overcome friction work, while a part of water meter is since water meter is due to being filled in water inlet
Water directly impacts part impeller, and this water flow impact pressure can also impact the rotating speed of impeller, so be flowed through in water flow low
Or in the case that water flow is excessively high, meter reading can all cause large error.
Utility model content
The technical issues of the utility model is solved is to provide a kind of high-accuracy mechanical water meter, to solve above-mentioned background skill
Disadvantage in art.
The technical issues of the utility model is solved is realized using following technical scheme：
A kind of high-accuracy mechanical water meter, including shell, impeller and dial plate, the cavity volume in the shell are divided into level stability
Chamber and measurement chamber two chambers, wherein level stability chamber front lower portion connects water inlet, the connection water outlet of measurement chamber upper rear end
Mouthful, it is separated by partition between two chambers, and it is steady in the upper and lower end endface position of partition board to be respectively arranged with a connection liquid level
Determine chamber and the line of rabbet joint of measurement chamber, lower face line of rabbet joint position is provided with one piece of deflector, this deflector and water inlet pipe extended line
Angle is -30~-20 °, and the impeller is assemblied in the cavity volume, and accesses dial plate, blade by shaft on top
To be angularly disposed, and the tangent plane of the outer contour of angularly disposed blade and the angle of water inlet pipe extended line are 100~120 °.
As further improvement of the utility model：
The partition board is integrally formed on the two sides in shell with case body.
The ratio between volume of the stable cavity and measurement chamber is 1: 3~1: 2.
The both sides of the inlet and outlet are equipped with screw thread, and the inner cavity of water inlet is equipped with strainer.
Advantageous effect：The utility model to inside water meter chamber structure and blade wheel structure be improved, chamber portion
Improve and will can effectively enter the impact force of the flow in water meter and reduce, reduce direct impact of the flow to impeller, coordinate simultaneously
The water (flow) direction that deflector will enter measurement chamber is guided out a downward component to be further reduced the impact to impeller, and leaf
Can also effectively wheel speed be corrected by taking turns the angle of inclination setting higher water outlet of cooperation position of the oblique blade face of setting
To further increase the precision of mechanical water meter.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model preferred embodiment.
Wherein：1, water inlet；2, strainer；3, shell；4, level stability chamber；5, the upper surface line of rabbet joint；6, dial plate；7, shaft；
8, water outlet；9, partition board；10, the lower face line of rabbet joint；11, deflector；12, measurement chamber；13, impeller.
Specific implementation mode
In order to make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to a kind of preferred embodiment of high-accuracy mechanical water meter of Fig. 1, in the present embodiment, the main body of water meter is
The shell 3 of metal material moulding, this interior shell 3 is cavity volume, and the partition board 9 that this cavity volume is molded on shell 3 is divided into two
The cavity volume of shell 3 is divided into volume by chamber, as level stability chamber 4 and measurement chamber 12, level stability chamber 4 and measurement chamber 12
Than two parts for 1: 2, both ends are separately connected water inlet 1 and water outlet 8, and the both sides of water inlet 1 and water outlet 8 are equipped with
Screw thread is used for connecting line.
4 front lower portion of level stability chamber positioned at front end connects water inlet 1, and is connected into level stability chamber 4 in water inlet 1
Setting was used for the impurity in drainage there are one strainer 2 on pipeline, after measurement chamber 12 is located at level stability chamber 4, volume space
Inside be equipped with impeller 13, dial plate 6 is accessed in this 13 top of impeller by shaft 7, this dial plate 6 is independently arranged, and with the volume of shell 3
Insulation is kept between chamber, gear assembly is arranged inside, for showing water consumption (crossing water inventory in water meter).Two volume skies
Between be attached by the upper surface line of rabbet joint 5 and the lower face line of rabbet joint 10 that are arranged on 9 upper surface of partition board and lower face, and water outlet
8 are arranged in 12 upper rear end of measurement chamber.
The flow that level stability chamber 4 is put into for directly receiving water inlet 1, and pass through in partition board 9 and space in intracavitary
The vortex that portion generates is to intaking into row buffering, and kinetic energy small portion is overflowed into from the upper surface line of rabbet joint 5 in the water body after buffering
In measurement chamber 12, and from still having larger kinetic energy when entering in measurement chamber 12 in the lower face line of rabbet joint 10, at this point, passing through setting
In lower face, 10 position of the line of rabbet joint can will enter measurement chamber 12 with oblique -20 ° deflectors 11 being arranged of water inlet pipe extended line
Water (flow) direction is guided out a downward component to be further reduced the impact to impeller 13, and the blade of impeller 13 is oblique sets
It sets, and the tangent plane of the outer contour of angularly disposed blade and the angle of water inlet pipe extended line are 110 °, what impeller 13 was arranged
The higher water outlet of the angle of inclination setting cooperation position of oblique blade face 8 can also effectively be corrected with further wheel speed
Improve the precision of mechanical water meter.
Basic principles, main features, and advantages of the present invention has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of high-accuracy mechanical water meter, including shell, impeller and dial plate, which is characterized in that the cavity volume point in the shell
For level stability chamber and measurement chamber, level stability chamber front lower portion connects water inlet, and measurement chamber upper rear end connects water outlet, and two
It is separated by partition between a chamber, and a connection level stability chamber is respectively arranged in the upper and lower end endface position of partition board
With the line of rabbet joint of measurement chamber, lower face line of rabbet joint position is provided with one piece of deflector, the angle of this deflector and water inlet pipe extended line
It is -30~-20 °, and the impeller is assemblied in the cavity volume, and dial plate is accessed by shaft on top, blade is oblique
To setting, and the tangent plane of the outer contour of angularly disposed blade and the angle of water inlet pipe extended line are 100~120 °.
2. a kind of high-accuracy mechanical water meter according to claim 1, which is characterized in that both sides of the partition board in shell
It is integrally formed with case body on face.
3. a kind of high-accuracy mechanical water meter according to claim 1, which is characterized in that the body of the stable cavity and measurement chamber
The ratio between product is 1: 3~1: 2.
4. a kind of high-accuracy mechanical water meter according to claim 1, which is characterized in that the two of the inlet and outlet
Side is equipped with screw thread.
5. a kind of high-accuracy mechanical water meter according to claim 1, which is characterized in that the inner cavity of the water inlet is equipped with
Strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820470415.9U CN207923222U (en) | 2018-03-23 | 2018-03-23 | A kind of high-accuracy mechanical water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820470415.9U CN207923222U (en) | 2018-03-23 | 2018-03-23 | A kind of high-accuracy mechanical water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207923222U true CN207923222U (en) | 2018-09-28 |
Family
ID=63595514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820470415.9U Expired - Fee Related CN207923222U (en) | 2018-03-23 | 2018-03-23 | A kind of high-accuracy mechanical water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207923222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595560A (en) * | 2019-10-12 | 2019-12-20 | 王俊玉 | Liquid flowmeter |
-
2018
- 2018-03-23 CN CN201820470415.9U patent/CN207923222U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595560A (en) * | 2019-10-12 | 2019-12-20 | 王俊玉 | Liquid flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 |