CN203490029U - Sealing device for atmospheric pressure meter calibration - Google Patents
Sealing device for atmospheric pressure meter calibration Download PDFInfo
- Publication number
- CN203490029U CN203490029U CN201320613169.5U CN201320613169U CN203490029U CN 203490029 U CN203490029 U CN 203490029U CN 201320613169 U CN201320613169 U CN 201320613169U CN 203490029 U CN203490029 U CN 203490029U
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- CN
- China
- Prior art keywords
- atmospheric pressure
- pressure meter
- cavity
- cover plate
- packoff
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a sealing device for atmospheric pressure meter calibration. The sealing device comprises a cavity (1), and is characterized in that a column edge (6) of the cavity (1) is fastened and sealed with a visual cover plate (2), and the outer wall of the cavity (1) is provided with a joint head (4). The problems that a traditional sealing device for the atmospheric pressure meter calibration, generally matched with an atmospheric pressure meter calibrating device, is high in price and must be used with the calibrating device, and cannot be assembled with other present equipment to calibrate atmospheric pressure meters, so that most metrological services are not equipped with capabilities of calibrating the atmospheric pressure meters, and the atmospheric pressure meter calibration is difficult to popularize and the like are solved.
Description
Technical field
The utility model belongs to atmospheric pressure meter calibrating field, relates in particular to a kind of atmospheric pressure meter calibrating packoff.
Background technology
Atmospheric pressure meter is generally used for local atmospheric pressure, infrabar, factory products pressure testing device low pressure or negative pressure to measure at present.For guaranteeing measurement, test figure accurately and reliably, just must calibrate atmospheric pressure meter, and in to the process of atmospheric pressure meter calibrating, must consider the singularity of its meter characteristic, be that it cannot directly be connected with standard of measurement, need be inserted in annular seal space and can calibrate it.Atmospheric pressure meter calibrating is mostly supporting with atmospheric pressure meter calibrating device institute with packoff in the market, expensive, and must support the use with calibrating installation, can not carry out the calibration that atmospheric pressure meter is carried out in assembly with other existing equipment, for this reason, metrological service does not possess the ability that atmospheric pressure meter is calibrated mostly, causes atmospheric pressure meter calibrating to be difficult to a universal difficult problem.
Summary of the invention
The technical problems to be solved in the utility model: a kind of atmospheric pressure meter calibrating packoff is provided, with solve existing atmospheric pressure meter calibrating with packoff general with atmospheric pressure meter calibrating device supporting, expensive, and must support the use with calibrating installation, can not carry out the calibration that atmospheric pressure meter is carried out in assembly with other existing equipment, the most metrological service causing does not possess the ability that atmospheric pressure meter is calibrated, and causes the problems such as atmospheric pressure meter calibrating is difficult to popularize.
Technical solutions of the utility model:
An atmospheric pressure meter calibrating packoff, it comprises cavity, and the post of cavity is sealed with visual cover plate along tightening, and has connector on chamber outer wall, and connector adopts can plug.
Post has groove along upper surface, has rubber ring in groove.
Post has screw along upper surface, and screw is evenly distributed, and quantity is greater than 10; On visual cover plate, have perforation, bore a hole evenly distributed, quantity is greater than 10; The position of screw and perforation is corresponding one by one.
Cavity material is aluminium alloy.
Visual cover plate is visual plastic cover plate.
The beneficial effects of the utility model:
Atmospheric pressure meter is inserted in the utility model, cover the visual cover plate of packoff, with screw, the perforation on visual cover plate is tightened after upper screw is connected with packoff cavity post, rubber ring and visual cover plate are closely sealed, realize the sealing of packoff, in order to improve sealing reliability, screw and perforation are evenly distributed, quantity is greater than 10, now, plugged connector on packoff chamber outer wall is connected accordingly with pressure controller, vacuum pump, can completes the establishment of atmospheric pressure meter calibrating device.Then open vacuum pump, the pressure of controlled pressure controller, just can complete the calibration of atmospheric pressure.Be not difficult to find out, the utility model is compared with existing atmospheric pressure meter calibrating device, there is simple in structure, highly versatile, set up feature easily, most critical be by the utility model, the cost of setting up atmospheric pressure meter to be reduced greatly, be easier to realize, can make this device obtain general application, the calibration that has solved atmospheric pressure meter is difficult to a universal difficult problem.
accompanying drawing explanation:
Fig. 1 is that the utility model master looks schematic diagram;
Fig. 2 is the utility model schematic top plan view.
embodiment:
An atmospheric pressure meter calibrating packoff, it comprises cavity 1, and the post of cavity 1, along being sealed with visual cover plate 2 on 6, has connector 4 on cavity 1 outer wall, and visual cover plate 2 will guarantee visuality, guarantees to read the reading of atmospheric pressure meter.
Post has groove 8 along 6 upper surfaces, has rubber ring 3 in groove 8, to guarantee the sealing of device.
Post has screw 7 along 6 upper surfaces, and screw 7 is evenly distributed, has perforation 5 on visual cover plate 2, and the position of screw 7 and perforation 5 is corresponding one by one.
Cavity 1 material is aluminium alloy or alloy steel.
Connector 4 is can plug connector.
The quantity of screw 7 and perforation 5 is all greater than 10.
Visual cover plate 2 can select visual plastic cover plate or the visual compound substance of other high strength to make, and visuality will be got well, and after meeting cover plate for sealing and building, can with the naked eye see the reading of the atmospheric pressure meter in packoff clearly.
The post that visual cover plate 2 is passed through to perforation 5 and cavity, along the 7 use screw-drivings of screw one to one on 6, is realized visual cover plate and rubber ring and is combined closely, and also can take other fit sealing mode.
Claims (7)
1. an atmospheric pressure meter calibrating packoff, it comprises cavity (1), it is characterized in that: the post of cavity (1) tightens and is sealed with visual cover plate (2) along (6), on cavity (1) outer wall, has connector (4).
2. a kind of atmospheric pressure meter calibrating packoff according to claim 1, is characterized in that: visual cover plate (2) is visual plastic cover plate.
3. a kind of atmospheric pressure meter calibrating packoff according to claim 1, is characterized in that: post has groove (8) along (6) upper surface, has rubber ring (3) in groove (8).
4. a kind of atmospheric pressure meter calibrating packoff according to claim 1, it is characterized in that: post has screw (7) along (6) upper surface, screw (7) is evenly distributed, has perforation (5) on visual cover plate (2), and the position of screw (7) and perforation (5) is corresponding one by one.
5. a kind of atmospheric pressure meter calibrating packoff according to claim 1, is characterized in that: cavity (1) material is aluminium alloy.
6. a kind of atmospheric pressure meter calibrating packoff according to claim 1, is characterized in that: connector (4) is can plug connector.
7. a kind of atmospheric pressure meter calibrating packoff according to claim 4, is characterized in that: the quantity of screw (7) and perforation (5) is all greater than 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320613169.5U CN203490029U (en) | 2013-09-30 | 2013-09-30 | Sealing device for atmospheric pressure meter calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320613169.5U CN203490029U (en) | 2013-09-30 | 2013-09-30 | Sealing device for atmospheric pressure meter calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490029U true CN203490029U (en) | 2014-03-19 |
Family
ID=50260852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320613169.5U Expired - Lifetime CN203490029U (en) | 2013-09-30 | 2013-09-30 | Sealing device for atmospheric pressure meter calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776878A (en) * | 2015-04-22 | 2015-07-15 | 青岛歌尔声学科技有限公司 | Sensor testing tool and testing method |
| CN107741295A (en) * | 2017-09-15 | 2018-02-27 | 江苏大学 | A kind of MENS capacitive baroceptors test calibration device and method |
-
2013
- 2013-09-30 CN CN201320613169.5U patent/CN203490029U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776878A (en) * | 2015-04-22 | 2015-07-15 | 青岛歌尔声学科技有限公司 | Sensor testing tool and testing method |
| CN104776878B (en) * | 2015-04-22 | 2017-05-24 | 青岛歌尔声学科技有限公司 | Testing method for sensor testing tool |
| CN107741295A (en) * | 2017-09-15 | 2018-02-27 | 江苏大学 | A kind of MENS capacitive baroceptors test calibration device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
|
| CX01 | Expiry of patent term |