CN109211361A - A kind of liquid meter precise detection device - Google Patents
A kind of liquid meter precise detection device Download PDFInfo
- Publication number
- CN109211361A CN109211361A CN201710521477.8A CN201710521477A CN109211361A CN 109211361 A CN109211361 A CN 109211361A CN 201710521477 A CN201710521477 A CN 201710521477A CN 109211361 A CN109211361 A CN 109211361A
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- detection
- fixed
- detection container
- container
- lifting device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/17—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using calibrated reservoirs
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention belongs to detecting instrument fields, and in particular to a kind of liquid meter precise detection device, including detection container, detection terminal and lifting device, the bottom of detection container are communicated with inlet tube；The top of detection container is equipped with bracket, servo motor is equipped on bracket, servo motor is for driving lifting device to make elevating movement above detection container；The bottom of lifting device is fixed with piston head, and piston head is for will test vessel isolation into two chambers, wherein the chamber close to the top of detection container is connected to atmosphere by gas-permeable channels；The upper end side of lifting device is fixed with reading head, and the top vertical of detection container is provided with grating scale, and the signal output end of reading head is connected to the signal input part of detection terminal.The beneficial effects of the present invention are: the present invention does not need manual adjustment lead screw or elevating mechanism, and it is time saving and energy saving, reduce human cost；Reading head reads the reading on grating scale automatically, and sends a signal to detection terminal, and measurement is accurate.
Description
Technical field
The invention belongs to detecting instrument fields, and in particular to a kind of liquid meter precise detection device.
Background technique
It supplies water, in Chemical Manufacture, many places need to use flowmeter, flow instrument or flowmeter etc., but are used for a long time
Under, each instrument is easy to produce error, therefore generally requires to use minute-pressure compensation measurement progress check and evaluation, but also tends to deposit
In following deficiency:
1. needing manual adjustment lead screw, take time and effort, human cost is big；
2. needing to manually visualize survey measurements, read reading and often misread, or there are large errors for the reading read.
Summary of the invention
The purpose of the present invention is overcoming defect of the existing technology, one kind is provided and does not need manual adjustment lead screw or liter
Descending mechanism, it is time saving and energy saving, reduce human cost；Reading head reads the reading on grating scale automatically, and sends a signal to detection
Terminal measures accurately liquid meter precise detection device.
The technical solution adopted by the present invention to solve the technical problems is: a kind of liquid meter precise detection device,
Inlet tube is communicated with including detection container, detection terminal and lifting device, the bottom of detection container；The top of detection container is equipped with
Bracket is equipped with servo motor on bracket, and servo motor is for driving lifting device to make elevating movement above detection container；It rises
The bottom of falling unit is fixed with piston head, and piston head, which is vertically slidably movable, to be connected in detection container, and piston head is for will test appearance
Device is isolated into two chambers, wherein the chamber close to the top of detection container is connected to atmosphere by gas-permeable channels；Lifting device
Upper end side is fixed with reading head, and the top vertical of detection container is provided with grating scale, and reading head is slidably connected on grating scale,
The signal output end of reading head is connected to the signal input part of detection terminal, and detection terminal is for showing the detection that reading head obtains
As a result.
The present invention is improved on the basis of existing minute-pressure compensates measuring device, using the elevating mechanism of mechanization
Carry out micro pressure measuring.Reading head rises to top, the then external water delivery of water tower, the water meter in aqueduct with lifting device first
Water is measured.Liquid meter precise detection device of the invention is vertically arranged, and is connected to another by inlet tube
In signal piping, signal piping and hydraulic pipeline are coupled to the water transport port of water tower lower part.When stopping water delivery, after cutting off the water supply, read
Several drop to liquid level with lifting device, and the data for measuring liquid level are delivered directly to detection terminal, and analysis shows that water meter
Flow results, i.e., in detection container subsurface water be by the water of water meter, so as to compare the flow of water meter, into
And accurately obtain the measured deviation of water meter, judge whether water meter meets the requirements.The present invention do not need manual adjustment lead screw or
Elevating mechanism, it is time saving and energy saving, reduce human cost；And reading head reads the reading on grating scale automatically, and sends signal
Detection terminal is given, measurement is accurate.
Specifically, the screw rod that lifting device includes beam barrel and is coaxially fixed on the output shaft of servo motor, piston head are same
Axis is fixed on the lower end of beam barrel, and the upper end of beam barrel is fixed with sealing plate, wears and be fixed with swivel nut on sealing plate, in swivel nut and beam barrel
Mandrel line is overlapped, and screw rod is connected in swivel nut.The structure beam barrel drives piston head to move up and down, and wherein the installation site of screw rod is simultaneously
The movement of beam barrel is not interfered.
Further, the top of detection container be equipped with sets of holes, beam barrel clearance fit in sets of holes, gas-permeable channels be beam barrel and
Circular passage between sets of holes, sets of holes facilitate beam barrel oscilaltion, and the chamber on piston head top is facilitated to carry out air-breathing or row
Gas.
Further, detection container is cylindrical vessel, and the top of detection container is equipped with flange ring, the bottom end of detection container
Equipped with blind flange, the flange of flange ring is fixedly connected by stay-bolt with the flange of blind flange, and sets of holes are the inner ring of flange ring
Hole.The sealing structure is good, firmly installs stabilization.
Further, servo motor by light bar segment for being driven screw turns；Bracket includes the first support plate, second
Fagging and circumferential the first upright bar being uniformly fixed on flange ring, the first support plate are fixed on the top of each first upright bar, the
Axle sleeve is fixed and be equipped in one support plate, is equipped with bearing in axle sleeve, light bar segment fits through in bearing；Second support plate is logical
The top of the first support plate is fixed in excessive the second upright bar of root, and servo motor is installed in the second support plate.The stabilized structure, tears open
Dress is convenient.
Further, the outer peripheral surface of piston head is equipped with sealpiston-ring, and sealpiston-ring fits in the interior of detection container
On wall；Good airproof performance, measurement are accurate.
Further, the bottom of detection container is fixed with skirt, and inlet tube is installed on the bottom of blind flange；Skirt is convenient for peace
On the basis of being loaded on.Facilitate setting inlet tube again simultaneously.
A kind of beneficial effect of liquid meter precise detection device of the invention is: the present invention is compensated in existing minute-pressure
It is improved on the basis of measuring device, micro pressure measuring is carried out using the elevating mechanism of mechanization, reading head is with lifting device
After rising, the data for measuring liquid level are delivered directly to detection terminal, and analysis shows that water meter flow results.The present invention is simultaneously
Manual adjustment lead screw or elevating mechanism are not needed, it is time saving and energy saving, reduce human cost；And reading head reads grating scale automatically
On reading, and send a signal to detection terminal, measurement is accurate.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a kind of main view of liquid meter precise detection device of the invention；
Fig. 2 is a kind of left view of liquid meter precise detection device of the invention；
Fig. 3 is a kind of full sectional view of liquid meter precise detection device of the invention.
Wherein: 1. detection containers；2. inlet tube；3. servo motor；4. piston head；5. gas-permeable channels；6. reading head；7. light
Grid ruler；8. beam barrel；9. screw rod；10. sealing plate；11. swivel nut；12. flange ring；13. blind flange；14. stay-bolt；15. light bar segment；
16. the first support plate；17. the second support plate；18. the first upright bar；19. axle sleeve；20. bearing；21. the second upright bar；22. skirt；
23. water tower；24. valve；25. water meter.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
A kind of specific embodiment of liquid meter precise detection device of the invention as shown in FIG. 1 to FIG. 3 comprising
Detection container 1, detection terminal and lifting device, the bottom of detection container 1 are communicated with inlet tube 2；The top of detection container 1 is equipped with
Bracket, servo motor 3 is equipped on bracket, and servo motor 3 is transported for driving lifting device to make lifting above detection container 1
It is dynamic；The bottom of lifting device is fixed with piston head 4, and piston head 4, which is vertically slidably movable, to be connected in detection container 1, and piston head 4 is used for
It will test container 1 and be isolated into two chambers, wherein the chamber close to the top of detection container 1 is connected to atmosphere by gas-permeable channels 5；
The upper end side of lifting device is fixed with reading head 6, and the top vertical of detection container 1 is provided with grating scale 7, and reading head 6 slides
It is connected on grating scale 7, the signal output end of reading head 6 is connected to the signal input part of detection terminal, and detection terminal is for showing
Show the testing result that reading head 6 obtains.
The present embodiment is improved on the basis of existing minute-pressure compensates measuring device, using the elevator of mechanization
Structure carries out micro pressure measuring.Reading head 6 rises to top, the then external water delivery of water tower, in aqueduct with lifting device first
Water meter measures water.The liquid meter precise detection device of the present embodiment is vertically arranged, and is connected to by inlet tube 2
In another signal piping, signal piping and hydraulic pipeline are coupled to the water transport port of water tower lower part.When stopping water delivery, it is cut off the water supply
Afterwards, reading head 6 drops to liquid level with lifting device, and the data for measuring liquid level are delivered directly to detection terminal, and analyze aobvious
Show the flow results of water meter, i.e., subsurface water is the water by water meter in detection container 1, so as to compare water meter
Flow, and then accurately obtain the measured deviation of water meter, judge whether water meter meets the requirements.The present embodiment does not need manually to adjust
Lead screw or elevating mechanism are saved, it is time saving and energy saving, reduce human cost；And reading head 6 reads the reading on grating scale 7 automatically,
And detection terminal is sent a signal to, measurement is accurate.
Specifically, the screw rod 9 that lifting device includes beam barrel 8 and is coaxially fixed on the output shaft of servo motor 3, piston head
4 are coaxially fixed on the lower end of beam barrel 8, and the upper end of beam barrel 8 is fixed with sealing plate 10, wears on sealing plate 10 and be fixed with swivel nut 11, spiral shell
The central axis of set 11 and beam barrel 8 is overlapped, and screw rod 9 is connected in swivel nut 11.The structure beam barrel 8 drives piston head 4 to move up and down,
Wherein the installation site of screw rod 9 does not interfere the movement of beam barrel 8.
Further, the top of detection container 1 is equipped with sets of holes, and for 8 clearance fit of beam barrel in sets of holes, gas-permeable channels 5 are axis
Circular passage between cylinder 8 and sets of holes, sets of holes facilitate 8 oscilaltion of beam barrel, and the chamber on 4 top of piston head is facilitated to be inhaled
Gas or exhaust.
Further, detection container 1 is cylindrical vessel, and the top of detection container 1 is equipped with flange ring 12, detection container 1
Bottom end be equipped with blind flange 13, the flange of flange ring 12 is fixedly connected by stay-bolt 14 with the flange of blind flange 13, sets of holes
For the interior annular distance of flange ring 12.The sealing structure is good, firmly installs stabilization.
Further, servo motor 3 is used to drive screw rod 9 to rotate by light bar segment 15；Bracket include the first support plate 16,
Second support plate 17 and circumferential the first upright bar 18 being uniformly fixed on flange ring 12, the first support plate 16 are fixed on each first
The top of upright bar 18 is fixed and is equipped with axle sleeve 19 in first support plate 16, bearing 20 is equipped in axle sleeve 19, and light bar segment 15 cooperates
It is arranged in bearing 20；Second support plate 17 is fixed on the top of the first support plate 16, servo electricity by more second upright bars 21
Machine 3 is installed in the second support plate 17.The stabilized structure, it is convenient for disassembly and assembly.
Further, the outer peripheral surface of piston head 4 is equipped with sealpiston-ring, and sealpiston-ring fits in detection container 1
On inner wall；Good airproof performance, measurement are accurate.
Further, the bottom of detection container 1 is fixed with skirt 22, and inlet tube 2 is installed on the bottom of blind flange 13；Skirt
22 are easily installed on the basis of.Facilitate setting inlet tube 2 again simultaneously.
It should be appreciated that described above, the specific embodiments are only for explaining the present invention, is not intended to limit the present invention.By
The obvious changes or variations that spirit of the invention is extended out are still in the protection scope of this invention.
Claims (7)
1. a kind of liquid meter precise detection device, it is characterised in that: including detection container (1), detection terminal and lifting dress
It sets, the bottom of the detection container (1) is communicated with inlet tube (2)；The top of the detection container (1) is equipped with bracket, the branch
It is equipped on frame servo motor (3), the servo motor (3) is for driving lifting device to go up and down above detection container (1)
Movement；The bottom of the lifting device is fixed with piston head (4), and the piston head (4), which is vertically slidably movable, is connected to detection container
(1) in, the piston head (4) is isolated into two chambers for will test container (1), wherein close to the top of detection container (1)
Chamber by gas-permeable channels (5) be connected to atmosphere；The upper end side of the lifting device is fixed with reading head (6), the detection
The top vertical of container (1) is provided with grating scale (7), and the reading head (6) is slidably connected on grating scale (7), the reading
The signal output end of head (6) is connected to the signal input part of detection terminal, and the detection terminal is for showing that reading head (6) obtains
Testing result.
2. a kind of liquid meter precise detection device according to claim 1, it is characterised in that: the lifting device packet
The screw rod (9) for including beam barrel (8) and being coaxially fixed on the output shaft of servo motor (3), the piston head (4) are coaxially fixed on axis
The lower end of cylinder (8), the upper end of the beam barrel (8) is fixed with sealing plate (10), wears on the sealing plate (10) and be fixed with swivel nut
(11), the central axis of the swivel nut (11) and beam barrel (8) is overlapped, and the screw rod (9) is connected in swivel nut (11).
3. a kind of liquid meter precise detection device according to claim 2, it is characterised in that: the detection container
(1) top is equipped with sets of holes, and for beam barrel (8) clearance fit in sets of holes, the gas-permeable channels (5) are beam barrel (8) and sets of holes
Between circular passage.
4. a kind of liquid meter precise detection device according to claim 3, it is characterised in that: the detection container
It (1) is cylindrical vessel, the top of the detection container (1) is equipped with flange ring (12), and the bottom end of the detection container (1) is equipped with
The flange of blind flange (13), the flange ring (12) is fixedly connected by stay-bolt (14) with the flange of blind flange (13), institute
State the interior annular distance that sets of holes are flange ring (12).
5. a kind of liquid meter precise detection device according to claim 4, it is characterised in that: the servo motor
(3) for passing through light bar segment (15) driving screw rod (9) rotation；The bracket includes the first support plate (16), the second support plate
(17) and circumferential the first upright bar (18) being uniformly fixed on flange ring (12), first support plate (16) is fixed on each the
The top of one upright bar (18) is fixed and is equipped with axle sleeve (19) on first support plate (16), is equipped in the axle sleeve (19)
Bearing (20), the light bar segment (15) fit through in bearing (20)；Second support plate (17) is vertical by more second
Bar (21) is fixed on the top of the first support plate (16), and the servo motor (3) is installed on the second support plate (17).
6. a kind of liquid meter precise detection device according to any one of claims 1-5, it is characterised in that: described
The outer peripheral surface of piston head (4) is equipped with sealpiston-ring, and the sealpiston-ring fits on the inner wall of detection container (1).
7. a kind of liquid meter precise detection device according to any one of claims 1-5, it is characterised in that: described
The bottom of detection container (1) is fixed with skirt (22), and the inlet tube (2) is installed on the bottom of blind flange (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521477.8A CN109211361A (en) | 2017-06-30 | 2017-06-30 | A kind of liquid meter precise detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521477.8A CN109211361A (en) | 2017-06-30 | 2017-06-30 | A kind of liquid meter precise detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109211361A true CN109211361A (en) | 2019-01-15 |
Family
ID=64960841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710521477.8A Pending CN109211361A (en) | 2017-06-30 | 2017-06-30 | A kind of liquid meter precise detection device |
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| Country | Link |
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| CN (1) | CN109211361A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201094074Y (en) * | 2007-09-21 | 2008-07-30 | 王丽娟 | Flow measurement calibrating system fluid medium automatic feeding apparatus |
| CN101393048A (en) * | 2007-09-21 | 2009-03-25 | 王丽娟 | Fluid medium automatic feeding apparatus for flow measurement demarcating system |
| CN103940496A (en) * | 2014-04-21 | 2014-07-23 | 杭州宏量科技有限公司 | Small liquid flow standard device special for hemodialysis machine calibrator |
| CN105526997A (en) * | 2015-12-29 | 2016-04-27 | 中国原子能科学研究院 | Calibration container, calibration circuit and calibration method of liquid metal flow gauge |
| CN206074091U (en) * | 2016-08-29 | 2017-04-05 | 天津市计量监督检测科学研究院 | A kind of two-way active piston liquid flow standard device |
| CN206269893U (en) * | 2016-11-30 | 2017-06-20 | 上海肯特仪表股份有限公司 | Closed-loop piston type Automated water flow calibrating device |
| CN207036227U (en) * | 2017-06-30 | 2018-02-23 | 江苏威熔液压气动科技有限公司 | A kind of liquid meter precise detection device |
-
2017
- 2017-06-30 CN CN201710521477.8A patent/CN109211361A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201094074Y (en) * | 2007-09-21 | 2008-07-30 | 王丽娟 | Flow measurement calibrating system fluid medium automatic feeding apparatus |
| CN101393048A (en) * | 2007-09-21 | 2009-03-25 | 王丽娟 | Fluid medium automatic feeding apparatus for flow measurement demarcating system |
| CN103940496A (en) * | 2014-04-21 | 2014-07-23 | 杭州宏量科技有限公司 | Small liquid flow standard device special for hemodialysis machine calibrator |
| CN105526997A (en) * | 2015-12-29 | 2016-04-27 | 中国原子能科学研究院 | Calibration container, calibration circuit and calibration method of liquid metal flow gauge |
| CN206074091U (en) * | 2016-08-29 | 2017-04-05 | 天津市计量监督检测科学研究院 | A kind of two-way active piston liquid flow standard device |
| CN206269893U (en) * | 2016-11-30 | 2017-06-20 | 上海肯特仪表股份有限公司 | Closed-loop piston type Automated water flow calibrating device |
| CN207036227U (en) * | 2017-06-30 | 2018-02-23 | 江苏威熔液压气动科技有限公司 | A kind of liquid meter precise detection device |
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