CN201555691U - Standard vacuum metering device - Google Patents
Standard vacuum metering device Download PDFInfo
- Publication number
- CN201555691U CN201555691U CN2009202425547U CN200920242554U CN201555691U CN 201555691 U CN201555691 U CN 201555691U CN 2009202425547 U CN2009202425547 U CN 2009202425547U CN 200920242554 U CN200920242554 U CN 200920242554U CN 201555691 U CN201555691 U CN 201555691U
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- vacuum
- straight shape
- pipe
- vacuum gauge
- arc
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Abstract
A standard vacuum metering device mainly consists of an arc extinguish chamber (1), a three-way pipe (2) and a vacuum gauge pipe (3). The standard vacuum metering device is characterized in that the straight vacuum gauge pipe (3) is communicated with the arc extinguish chamber (1) through the three-way pipe (2) to form an integrated horizontal-line-shaped structure, and the axial direction of the straight vacuum gauge pipe (3) is the same as that of the arc extinguish chamber (1), wherein the three-way pipe (2) is provided with a side branch pipe (21); when in use, after vacuum of a certain value is pumped by the side branch pipe (21) of the three-way pipe (2), the side branch pipe (2) is sealed, the vacuum degree of the vacuum gauge pipe (3) is the same as that of the arc extinguish chamber (1), the exact value of the vacuum degree of the arc extinguish chamber (1) is measured by an instrument matched with the vacuum gauge pipe (3), and the error of a vacuum degree tester can be obtained by comparing the data tested by the vacuum degree tester with the standard vacuum degree, thus realizing the checking on the vacuum degree tester.
Description
Technical field
The utility model relates to the measuring apparatus that a kind of vacuum tightness detects, and relates in particular to a kind of standard vacuum metering device that electric system is carried out verification with vacuum degree measuring instrument.
Background technology
It is to be used for the instrument that vacuum tightness to the vacuum switch arc-chutes detects that electric system is estimated instrument with vacuum tightness, but because the singularity that this physical quantity of vacuum tightness parameter detects, metrological service does not come the accuracy that this vacuum tightness is estimated the instrument data is detected and confirms in a kind of suitable means always for a long time.
In order to realize verification to vacuum degree measuring instrument, some producers will be used for vacuum gauge that vacuum tightness detects by pipeline with take out to a certain degree vacuum after the exhausr port of vacuum interrupter is communicated with and also sealed standard vacuum as the verification vacuum degree measuring instrument, reason owing to aspects such as technologies, can only make the orthogonal structure of axis of the axis and the vacuum interrupter of vacuum gauge, and can only adopt the glass of T shape structure to regulate, because the out-of-shape of this kind structure, glass is regulated and is fragile article, its use, transportation and preservation are all inconvenient, so it is general only personal for producer, be difficult to circulate in society as measurement instrument, by the user is adopted, cause the standard vacuum of this structure to have certain technological deficiency.
Summary of the invention
The purpose of this utility model is a kind of addressing the above problem of development, and is simple in structure, can calibrate, measure vacuum degree measuring instrument exactly, simultaneously easy to use, is convenient to the standard vacuum metering device that transports and preserve.
The utility model is achieved through the following technical solutions:
The utility model is mainly by arc-chutes; three-way pipe and vacuum gauge are formed; it is characterized in that: adopt straight shape vacuum gauge and arc-chutes to connect by three-way pipe; form the in-line integral structure; the axis direction of straight shape vacuum gauge and the axis direction of arc-chutes are consistent; wherein; three-way pipe has side branch; when making; be extracted into this side branch of vacuum rear enclosed of certain value by the side branch of three-way pipe; the interior vacuum tightness of the vacuum tightness of straight shape vacuum gauge and arc-chutes is consistent; the supporting instrument of utilization and this straight shape vacuum gauge records the exact value of vacuum tightness in the arc-chutes; with vacuum degree measuring instrument survey the vacuum tightness value therewith exact value compare; can determine the error of vacuum degree measuring instrument; in the practical application; usually needing that this standard vacuum is pumped into different vacuum tightness values uses in groups; thereby realize verification to the vacuum measurement instrument; wherein; straight shape vacuum gauge can adopt straight shape metal vacuum to regulate or adopt that straight shape is glass evacuated regulates; when selecting for use straight shape glass to regulate; be provided with metal protection protector outward; metal protection protector and straight shape is glass evacuated is filled with filling material protected between regulating reaches purpose of design.
The utlity model has following advantage:
Via enforcement of the present utility model, simple in structure, can carry out verification to vacuum degree measuring instrument easily, and solid, easy to use, storage and transport, can realize commercialization, solve the problem that metrological service for a long time can't carry out verification to vacuum degree measuring instrument.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is existing vacuumatic measuring apparatus structure synoptic diagram.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the structural representation of rear view of the present utility model.
Fig. 4 is the structural representation that the utility model adopts the glass evacuated partial sectional view of regulating of straight shape.
Among the figure, 1 arc-chutes, 2 three-way pipes, 21 side branch, 3 straight shape vacuum gauges, 4 metal protection protectors, 5 filling materials
Embodiment
The utility model shown in Fig. 2 to Fig. 4 is mainly by arc-chutes (1); three-way pipe (2) and vacuum gauge (3) are formed; it is characterized in that: adopt straight shape vacuum gauge (3) and arc-chutes (1) to connect by three-way pipe (2); form integral type in-line structure; the axis direction of straight shape vacuum gauge (3) is consistent with the axis direction of arc-chutes (1); wherein; three-way pipe (2) has side branch (21); straight shape vacuum gauge (3) can select for use straight shape metal to regulate or straight shape glass is regulated; when selecting for use straight shape glass to regulate; be provided with metal protection protector (4) outward; metal protection protector (4) and straight shape is glass evacuated regulates to be filled with between (3) and mould lipid filling material (5); fully realize protection to vacuum gauge (3); when making; be extracted into this side branch of vacuum rear enclosed (21) of certain value by the side branch (21) of three-way pipe (2); the vacuum tightness of straight shape vacuum gauge (3) is consistent with the vacuum tightness of arc-chutes (1); utilize the exact value that records the interior vacuum tightness of arc-chutes (1) with this straight shape vacuum gauge (3) necessary instrument; with vacuum degree measuring instrument survey the vacuum tightness value therewith standard vacuum degree value compare; can determine the error of vacuum degree measuring instrument; thereby realize verification, reach purpose of design the vacuum measurement instrument.
Fig. 1 is the structural representation of existing vacuum tightness metering device, and the axis that this structure for vacuum is regulated and the axis of arc-chutes are perpendicular, and vacuum gauge is that T shape glass is regulated, and storage, transportation and use are inconvenient, cracky.
The utility model is simple in structure, and value is accurate, is convenient to storage, transportation and use.
Claims (3)
1. standard vacuum is measured device, mainly form by arc-chutes (1), three-way pipe (2) and vacuum gauge (3), it is characterized in that: adopt straight shape vacuum gauge (3) and arc-chutes (1) to connect by three-way pipe (2), form integral type in-line structure, the axis direction of straight shape vacuum gauge (3) is consistent with the axis direction of arc-chutes (1).
2. standard vacuum metering device according to claim 1 is characterized in that described straight shape vacuum gauge (3) can adopt straight shape metal vacuum to regulate.
3. standard vacuum metering device according to claim 1; it is characterized in that described straight shape vacuum gauge (3) can adopt that straight shape is glass evacuated regulates; be provided with metal protection protector (4) outward, be filled with filling material (5) between metal protection protector (4) and the straight shape vacuum gauge (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202425547U CN201555691U (en) | 2009-10-15 | 2009-10-15 | Standard vacuum metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202425547U CN201555691U (en) | 2009-10-15 | 2009-10-15 | Standard vacuum metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201555691U true CN201555691U (en) | 2010-08-18 |
Family
ID=42615378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202425547U Expired - Fee Related CN201555691U (en) | 2009-10-15 | 2009-10-15 | Standard vacuum metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201555691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419236A (en) * | 2011-12-09 | 2012-04-18 | 烟台睿创微纳技术有限公司 | Calibration box for measuring vacuum degree of micro device and using method thereof |
| CN102944358A (en) * | 2012-11-12 | 2013-02-27 | 中国航天科技集团公司第五研究院第五一〇研究所 | High and low temperature vacuum calibrating device and method |
-
2009
- 2009-10-15 CN CN2009202425547U patent/CN201555691U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419236A (en) * | 2011-12-09 | 2012-04-18 | 烟台睿创微纳技术有限公司 | Calibration box for measuring vacuum degree of micro device and using method thereof |
| CN102944358A (en) * | 2012-11-12 | 2013-02-27 | 中国航天科技集团公司第五研究院第五一〇研究所 | High and low temperature vacuum calibrating device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20131015 |