CN205002907U - Totally enclosed instrument - Google Patents
Totally enclosed instrument Download PDFInfo
- Publication number
- CN205002907U CN205002907U CN201520537760.6U CN201520537760U CN205002907U CN 205002907 U CN205002907 U CN 205002907U CN 201520537760 U CN201520537760 U CN 201520537760U CN 205002907 U CN205002907 U CN 205002907U
- Authority
- CN
- China
- Prior art keywords
- watchcase
- totally enclosed
- instrument
- ring seal
- bonnet
- 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.)
- Active
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a totally enclosed instrument, including watchcase, glass panels and hou gai, set up explosion -proof stopper on the outside of back lid, it is sealed by the sealing washer between watchcase and glass panels and watchcase and the back lid. The utility model discloses a totally enclosed instrument seals the processing with all inside, outside combinations department of instrument to according to relevant regulation safe in utilization, set up the sealed explosion -proof of low pressure stopper, both satisfy 0 -4000 rice elevation ambient atmosphere and pushed down the gauge package, can accomplish the safety explosion -proof stopper that safety breaks away from under the emergency simultaneously.
Description
Technical field
The utility model belongs to manometer (comprising two-tube crosspointer tensimeter), electrical measuring instrument and other instrument field, specifically a kind of totally enclosed type instrument
.
Background technology
General purpose pressure gauge is as most widely used pressure measuring instruments, and being mainly used for measuring with atmospheric pressure is benchmark, measures the malleation of relative atmospheric pressure or a kind of instrument of negative pressure value.Its cardinal principle applies pressure by sensitive element (bourdon tube) inside to instrument, make to produce pressure differential between sensitive element (bourdon tube) inside and outside environment, sensitive element (bourdon tube) is made to produce elastic deformation displacement, again the gear drive of displacement through movement amplified and convert the rotation of pointer to, making the number of degrees intuitively accurate.
And when manometric environment for use atmospheric pressure (sea level elevation affects atmospheric pressure) changes, the measurement indicating value of instrument also changes thereupon, and this is likely to making for inconvenience, or judges by accident.
Existing tensimeter product is because the sea level elevation, ambient atmosphere pressure etc. of environment for use has the factor of considerable influence relatively stable to accuracy of instrument, so production unit does not develop a kind of product for tensimeter product specially because of the sea level elevation, ambient atmosphere pressure etc. of the environment for use situation that has the factor of considerable influence often to change to accuracy of instrument.
Utility model content
In order to solve the above-mentioned technical matters existed in prior art, the utility model provides a kind of totally enclosed type instrument, comprise watchcase, face glass and bonnet, the outside of described bonnet arranges explosion-proof plug, watchcase and face glass and sealed by O-ring seal between watchcase and bonnet.
Further, the connection terminal that described bonnet throws light on arranges the first O-ring seal by place.
Further, the connection terminal that described bonnet throws light on is installed screw and is arranged the second O-ring seal by place.
Further, described bonnet top connection arranges the 3rd O-ring seal by place.
Further, described bonnet and watchcase joint portion arrange the 4th O-ring seal.
Further, the 5th O-ring seal is set between described face glass and watchcase edge.
Totally enclosed type instrument of the present utility model, inside all for instrument, combined outside place are carried out encapsulation process, and the regulation relevant according to use safety, be provided with low pressure seal explosion-proof plug, both met the sealing of 0--4000 rice sea level elevation ambient atmosphere pressure instrument, the safety anti-explosive plug of in emergency circumstances safe escape can have been accomplished simultaneously.
Accompanying drawing explanation
Fig. 1 is totally enclosed type instrument structure schematic diagram of the present utility model;
Fig. 2 is totally enclosed type instrument cut-open view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As illustrated in fig. 1 and 2, totally enclosed type instrument of the present utility model, comprises watchcase 1, face glass and bonnet 2, the outside of bonnet 2 is arranged explosion-proof plug 3, and connection terminal that bonnet 2 throws light on arranges the first O-ring seal 4 by place; Connection terminal that bonnet 2 throws light on is installed screw and is arranged the second O-ring seal 5 by place; Bonnet 2 top connection arranges the 3rd O-ring seal 6 by place; Bonnet 2 and watchcase 1 joint portion arrange the 4th O-ring seal 7; 5th O-ring seal 8 is set between face glass and watchcase 1 edge.
After these positions all seal, the sensitive element (bourdon tube) of instrument is among the environment of a pressure stability, can not affect the sensitive element (bourdon tube) of gauge internal when external ambient atmosphere pressure (sea level elevation) changes, the measurement indicating value of instrument is not by the impact of environment.And inner body, not by the erosion of environmentally hazardous substance (moist, corrosive gas), can increase the service life after instrument sealing.
Claims (5)
1. a totally enclosed type instrument, comprise watchcase (1), face glass and bonnet (2), it is characterized in that: the outside of described bonnet (2) is arranged explosion-proof plug (3), watchcase (1) and face glass and sealed by O-ring seal between watchcase (1) and bonnet (2); Described bonnet (2) upper illumination connection terminal arranges the first O-ring seal (4) by place.
2. totally enclosed type instrument as claimed in claim 1, is characterized in that: described bonnet (2) upper illumination connection terminal is installed screw and arranged the second O-ring seal (5) by place.
3. totally enclosed type instrument as claimed in claim 1, is characterized in that: described bonnet (2) top connection arranges the 3rd O-ring seal (6) by place.
4. totally enclosed type instrument as claimed in claim 1, is characterized in that: described bonnet (2) and watchcase (1) joint portion arrange the 4th O-ring seal (7).
5. totally enclosed type instrument as claimed in claim 1, is characterized in that: arrange the 5th O-ring seal (8) between described face glass and watchcase (1) edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537760.6U CN205002907U (en) | 2015-07-23 | 2015-07-23 | Totally enclosed instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537760.6U CN205002907U (en) | 2015-07-23 | 2015-07-23 | Totally enclosed instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205002907U true CN205002907U (en) | 2016-01-27 |
Family
ID=55159791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520537760.6U Active CN205002907U (en) | 2015-07-23 | 2015-07-23 | Totally enclosed instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205002907U (en) |
-
2015
- 2015-07-23 CN CN201520537760.6U patent/CN205002907U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104215382B (en) | The film isolated form gauge pressure transducer of external balance chamber | |
| CN104535279A (en) | Novel waterproof and dustproof level dry detection method and device | |
| CN205002907U (en) | Totally enclosed instrument | |
| CN204027754U (en) | The film isolated form gauge pressure transducer of external balance chamber | |
| CN204964098U (en) | Backpressure formula pressure sensor | |
| CN208043318U (en) | A kind of manometer metering device free of demolition | |
| CN203551174U (en) | Bourdon-tube pressure gauge | |
| CN102435381A (en) | Liquid-state metallic sodium experiment loop pressure sensor | |
| CN205580653U (en) | Diaphragm pressure gauge | |
| CN201060079Y (en) | Intelligent differential pressure cell | |
| CN208621234U (en) | The floated pressure sensor of hard flat membrane | |
| CN203275010U (en) | Sulfur-resistant pressure gage | |
| CN207964207U (en) | The airtight leak detector of differential pressure type | |
| CN204301910U (en) | Two display pressure transmitter | |
| CN210719506U (en) | Pressure gauge for measuring liquid pressure | |
| CN205538066U (en) | Hydraulic pressure gauge | |
| CN204085771U (en) | Pressure unit | |
| CN204730978U (en) | All steel structure rain glass | |
| CN201322673Y (en) | Free expansion type vacuum gauge | |
| CN204831679U (en) | Vacuum barometer | |
| CN203191149U (en) | Vacuum pressure meter | |
| CN203455060U (en) | A sealed electronic belt scale equipped with a compressed air ash-cleaning device | |
| CN214843762U (en) | Pressure sensing type fire fighting pressure gauge | |
| CN2921808Y (en) | Oil-filling antivibrating bellows pressure gauge | |
| CN216645748U (en) | Waterproof digital display caliper sealing tester utilizing differential pressure gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170712 Address after: The six Cross Town Community Youth Village in Zhoushan city of Zhejiang province Putuo District 316132 Wang Ni Cheng Tang Wai No. 32 Patentee after: Zhoushan Qingfeng railway Instrument Co. Ltd. Address before: 316132 Wang Village, six horizontal Town, Zhoushan, Zhejiang, Putuo District Patentee before: Putuo, Zhoushan Qing Feng railway communication instrucment and meter plant |