CN2921808Y - Oil-filling antivibrating bellows pressure gauge - Google Patents
Oil-filling antivibrating bellows pressure gauge Download PDFInfo
- Publication number
- CN2921808Y CN2921808Y CN 200620091605 CN200620091605U CN2921808Y CN 2921808 Y CN2921808 Y CN 2921808Y CN 200620091605 CN200620091605 CN 200620091605 CN 200620091605 U CN200620091605 U CN 200620091605U CN 2921808 Y CN2921808 Y CN 2921808Y
- Authority
- CN
- China
- Prior art keywords
- gauge
- oil
- pressure
- plug
- filling
- 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 - Fee Related
Links
Abstract
An oil-filling antivibrating bellows pressure gauge comprises a gauge body, working fluid filled in the gauge body and a sealing safety plug provided above the gauge body, wherein, the central part of the sealing safety plug body is provided with an air hole and a rubber plug corking up the air hole. The utility model is characterized in that: when the pressure gauge is in work, the safety plug is opened and the gauge casing body only has inside changeless minor static pressure unchanging due to environmental change; when the gauge is verified without filling with oil, the show value is a fixed value of negative difference balanced out with the static pressure to zero; when the gauge is calibrated after being filled with oil, the show value is accurate, i.e. the pressure gauge is free from influence of mild change of external environment with accurate actual measurement show value of medium pressure.
Description
Technical field:
The utility model relates to a kind of pressure indicating instrument, the shatter-proof film resultant pressure of specifically a kind of oil-filled type table.
Background technology
Oil-filled type is shatter-proof, and film resultant pressure table is to fill working fluid (100# silicone oil) in the film resultant pressure table table body of sealing, because of the service part of instrument is worked in working fluid, when vibrations take place in the working environment of instrument, can the displayed value of instrument not exerted an influence yet, instrument indication value is still accurate, because of the instrumentation parts are worked in working fluid, lubricated strong attitude is good, and strengthen serviceable life greatly.
The above oil-filled shock-proof pressure gauge of 0.1Mpa can be produced both at home and abroad at present.But can not produce the oil-filled shock-proof pressure gauge of the minute-pressure below the 0.06Mpa.0.06Mpa being the principle that adopts film to close contraction, following micromanometer makees written instructions conduction original paper, so micromanometer claims film resultant pressure table in the industry.
Film resultant pressure table is only measured the slight pressure of medium, indicating value pressure is very small, after instrument is hermetically sealed, external environment condition slight variation (as variation of ambient temperature) is arranged or during to instrument check film close drawdown deformation, just can cause the gauge internal of sealing to produce pressure, and film closes the pressure of institute's energy measurement is slight pressure, so the measured indicating value of instrument can not show the true indicating value of surveying pressure medium.Its main cause is that instrument is hermetically sealed, and the inconvenience of oil-filled sealingly secure plug is opened.
Summary of the invention:
In view of the deficiency that above-mentioned prior art exists, the purpose of this utility model provides a kind of shatter-proof film resultant pressure of the pressure medium actual measurement indicating value oil-filled accurately type of demonstration table of guaranteeing.
The purpose of this utility model is achieved in that it comprises the table body and is filled in the working fluid in the table body and is located at the sealingly secure plug of showing above the body, is characterized in that: the plug that is provided with an air hole and this air hole of shutoff in the centre of sealing safety plug cock body.
For the plug that prevents the shutoff air hole is lost, be provided with between the cock body with sealing at plug and be connected adhesive tape.
When tensimeter is opened safety plug when working, has only atomic little static pressure in the instrument housing, and this static pressure can not change because of the variation of environment, because static pressure is constant, when instrument not during oil-filled effect, indicating value minus tolerance definite value, it is zero that minus tolerance and static pressure offset, when calibrated the oil-filled back of instrument, displayed value was correct.
The utility model has the advantages that tensimeter the time can open the sealingly secure plug easily in check and work, make tensimeter not be subjected to the slight variable effect of external environment condition, guarantee that pressure medium actual measurement indicating value shows accurately.
Below in conjunction with accompanying drawing the utility model is explained.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a sealingly secure plug structure synoptic diagram.
Embodiment:
By accompanying drawing as can be known, the utility model is by showing body 3, being filled in and showing the working fluid 2 in the body and be located at table body 3 top sealingly secure plugs 1 to constitute, the centre of sealingly secure plug cock body 1-1 is provided with the plug 1-3 of an air hole 1-2 and this air hole of shutoff, between plug 1-3 and sealing cock body 1-1, be provided with and be connected adhesive tape 1-4, lose with the plug 1-3 that prevents shutoff air hole 1-2.Tensimeter must be opened the sealingly secure plug when check and work.
Claims (2)
1, the shatter-proof film resultant pressure of a kind of oil-filled type table, it comprises the table body and is filled in the working fluid in the table body and is located at the sealingly secure plug of showing above the body, it is characterized in that: the plug that is provided with an air hole and this air hole of shutoff in the centre of sealing safety plug cock body.
2, the shatter-proof film resultant pressure of oil-filled type as claimed in claim 1 table is characterized in that: described sealingly secure plug is provided with between the cock body with sealing at plug and is connected adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091605 CN2921808Y (en) | 2006-06-19 | 2006-06-19 | Oil-filling antivibrating bellows pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091605 CN2921808Y (en) | 2006-06-19 | 2006-06-19 | Oil-filling antivibrating bellows pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921808Y true CN2921808Y (en) | 2007-07-11 |
Family
ID=38254288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620091605 Expired - Fee Related CN2921808Y (en) | 2006-06-19 | 2006-06-19 | Oil-filling antivibrating bellows pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921808Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075840A (en) * | 2013-03-25 | 2014-10-01 | 珠海三德艺电子有限公司 | Pressure instrument |
-
2006
- 2006-06-19 CN CN 200620091605 patent/CN2921808Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075840A (en) * | 2013-03-25 | 2014-10-01 | 珠海三德艺电子有限公司 | Pressure instrument |
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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: 20070711 |