CN203629745U - Pressure sensor protecting device - Google Patents
Pressure sensor protecting device Download PDFInfo
- Publication number
- CN203629745U CN203629745U CN201320877283.9U CN201320877283U CN203629745U CN 203629745 U CN203629745 U CN 203629745U CN 201320877283 U CN201320877283 U CN 201320877283U CN 203629745 U CN203629745 U CN 203629745U
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- Prior art keywords
- pressure sensor
- protecting equipment
- case body
- sensor protecting
- plate
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Abstract
The utility model discloses a pressure sensor protecting device which comprises a housing body and cover plates. The cover plates are fixedly connected at an opening of the housing body. The housing body has a hollow cylindrical structure and is used for accommodating a pressure sensor. Intervals between the pressure sensor and the housing body and axial translation plates prevent influences of long-term or instantaneous mechanics disturbance on the measuring precision of the sensor, and influences of external temperature change on the pressure sensor are minimized. The pressure sensor protecting device overcomes a defect that a conventional pressure sensor is easy to be influenced by external mechanics disturbance, and can be applied to air pressure and liquid pressure measurement under a complex load environment.
Description
Technical field
The utility model relates to art of pressure sensors, specifically, relates to a kind of pressure sensor protecting equipment, can eliminate the impact of mechanics disturbance on pressure transducer.
Background technology
Pressure transducer is a kind of pick-up unit, can experience measured information, and the information that detection can be experienced, be for conversion into according to certain rules the information output of electric signal or its desired form, to meet the requirement such as transmission, processing, storage, demonstration, record and control of information.
At present, pressure transducer of a great variety, and range of application is more extensive.But because causing it, the complexity of environment for use there is defect.Traditional protector for sensor is just realized and is weakened mechanics disturbance by thickening casing size, but under long-term mechanics or environmental perturbation effect, effect is often also not near desirable.Meanwhile, under some particular surroundingss, the size of sensor is also had to corresponding demand.
Utility model content
Technical problem to be solved in the utility model is that existing pressure sensor protecting equipment weakens that the method for mechanics disturbance is single and specific environment is poor for applicability.
The technical solution of the utility model is as follows:
A kind of pressure sensor protecting equipment, is characterized in that, comprise the cover plate being fixedly connected with of case body and opening part thereof, the tubular construction that described case body is hollow, for hold pressure unit.
Further: in the tubular construction of described case body, to be provided with axial translatory plate, for limiting moving axially of described pressure transducer.
Further; described pressure sensor protecting equipment also comprises: multiple elastic bodys; be arranged on the inwall and described axial translatory plate of described case body, for supporting described pressure transducer, make to form interval between described pressure transducer and described case body, described axial translatory plate.
Further: the center of described cover plate is provided with cover plate through hole.
Further, described pressure sensor protecting equipment also comprises: axial advance bar, it,, through described cover plate through hole, moves vertically for promoting described axial translatory plate.
Further: described cover plate through hole is fixedly connected with described axial advance bar by screw thread, for the position of fixing described axial translatory plate.
Further: the center of described axial translatory plate is provided with translatory plate through hole, be connected with described pressure transducer for making sensor conductor pass described translatory plate through hole.
Further: described axial advance bar is hollow structure, for holding described sensor conductor.
Further: the external diameter of described axial advance bar is greater than the external diameter of described translatory plate through hole.
Technique effect of the present utility model is as follows:
1, the interval between pressure transducer of the present utility model and case body, axial translatory plate, has avoided long-term or instantaneous mechanics disturbance to impact the measuring accuracy of sensor.
2, pressure transducer of the present utility model and case body, axially the interval between translatory plate has delayed ambient temperature and has changed the impact on pressure transducer.
3, pressure sensor protecting equipment of the present utility model has overcome existing pressure transducer and has been subject to the defect of extraneous mechanics disturbance, can be used in the surveying work of air pressure and hydraulic pressure under Complicated Loads environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressure sensor protecting equipment of the present utility model.
Embodiment
As shown in Figure 1, be the structural representation of pressure sensor protecting equipment of the present utility model.The structure of this pressure sensor protecting equipment comprises the cover plate being fixedly connected with 3 of case body 1 and opening part thereof.The tubular construction that case body 1 is hollow, for hold pressure unit 5.The internal diameter of case body 1 is greater than the external diameter of pressure transducer 5, to form gap between the medial surface of case body 1 and pressure transducer 5.This gap is chosen according to the material of case body 1 and mechanics disturbance type, size.This gap is generally greater than 0.1mm.Case body 1 can be fixedly connected with cover plate 3 by screw thread, also can be fixedly connected with by alternate manner.This case body 1 can be changed its material according to the requirement of complex environment.
In case body 1, be provided with axial translatory plate 2, for moving axially of limiter pressure sensor 5.This pressure sensor protecting equipment also comprises multiple elastic bodys 6.Multiple elastic bodys 6 are arranged on the inwall and axial translatory plate 2 of case body 1, for abutment pressure sensor 5, make between pressure transducer 5 and case body 1, to flexibly connect and reach sealing effectiveness, and make pressure transducer 5 and case body 1, axially between translatory plate 2, form interval 7, to eliminate the impact of mechanics disturbance on pressure transducer 5.Due to the existence at interval 7, long-term or instantaneous mechanics disturbance can not impact the measuring accuracy of pressure transducer 5.Meanwhile, interval 7 changes ambient temperature and can not have influence on fast pressure transducer 5.Elastic body 6 can weaken the impact of axial mechanics disturbance on pressure transducer 5.Elastic body 6 can arrange according to the shape of case body 1, guarantees that mechanics disturbance is directly passed to pressure transducer 5 itself by elastic body 6 unaffected or affect minimum part.In a preferred embodiment of the present utility model, elastic body 6 is arranged on the upper surface of inwall of case body 1 and axially on the upper surface of translatory plate 2.
The center of cover plate 3 is provided with cover plate through hole.This pressure sensor protecting equipment also comprises axial advance bar 4.Axial advance bar 4, through cover plate through hole, moves to translatory plate 2 vertically for impeller-hub.Cover plate through hole is fixedly connected with axial pushing ram 4, the position for stationary shaft to translatory plate 2 by screw thread.
Axially the center of translatory plate 2 is provided with translatory plate through hole, is connected with pressure transducer 5 for making sensor conductor pass translatory plate through hole.Axial advance bar 4 is hollow structure, for holding sensor conductor.The external diameter of axial advance bar 4 is greater than the external diameter of translatory plate through hole, to avoid axial advance bar 4 through translatory plate through hole.
While using above-mentioned pressure sensor protecting equipment, need to first assemble, the assemble method of this pressure sensor protecting equipment is as follows:
Multiple elastic bodys 6 are arranged on the inwall and axial translatory plate 2 of case body 1; Pressure transducer 5 is put into case body 1, make the sensor conductor of pressure transducer 5 successively through translatory plate through hole, cover plate through hole and axial advance bar 4; Axial translatory plate 2 is placed in case body 1; Cover plate 3 is fixedly connected with the opening part of case body 1; Through cover plate through hole, one end of axial advance bar 4 is contacted with axial translatory plate 2 axial advance bar 4; Rotation cardan shaft is to pushing ram 4, and impeller-hub is to translatory plate 2, makes the inwall of pressure transducer 5 and case body 1 and the axially tight crimping of elastic body 6 on translatory plate 2, between pressure transducer 5 and case body 1, axial translatory plate 2, forms interval 7; By the screw thread in cover plate through hole, the position of axial advance bar 4 is locked, completes the assembling of pressure sensor protecting equipment.
The installation steps of pressure sensor protecting equipment of the present utility model are simple, and can change flexibly according to particular surroundings, because sealing is better, can be used for the measurement of air pressure and hydraulic pressure under Complicated Loads environment.Sensor that this pressure sensor protecting equipment can also be applicable to be subject to mechanics disturbing influence is as piezoelectric sensor, piezoresistance sensor etc.
Claims (9)
1. a pressure sensor protecting equipment, is characterized in that, comprises the cover plate being fixedly connected with of case body and opening part thereof, and the tubular construction that described case body is hollow, for hold pressure unit.
2. pressure sensor protecting equipment as claimed in claim 1, is characterized in that: in the tubular construction of described case body, be provided with axial translatory plate, for limiting moving axially of described pressure transducer.
3. pressure sensor protecting equipment as claimed in claim 2; it is characterized in that; also comprise: multiple elastic bodys; be arranged on the inwall and described axial translatory plate of described case body; be used for supporting described pressure transducer, make to form interval between described pressure transducer and described case body, described axial translatory plate.
4. pressure sensor protecting equipment as claimed in claim 2, is characterized in that: the center of described cover plate is provided with cover plate through hole.
5. pressure sensor protecting equipment as claimed in claim 4, is characterized in that, also comprises: axial advance bar, it,, through described cover plate through hole, moves vertically for promoting described axial translatory plate.
6. pressure sensor protecting equipment as claimed in claim 5, is characterized in that: described cover plate through hole is fixedly connected with described axial advance bar by screw thread, for the position of fixing described axial translatory plate.
7. pressure sensor protecting equipment as claimed in claim 2, is characterized in that: the center of described axial translatory plate is provided with translatory plate through hole, is connected with described pressure transducer for making sensor conductor pass described translatory plate through hole.
8. pressure sensor protecting equipment as claimed in claim 7, is characterized in that: described axial advance bar is hollow structure, for holding described sensor conductor.
9. pressure sensor protecting equipment as claimed in claim 8, is characterized in that: the external diameter of described axial advance bar is greater than the external diameter of described translatory plate through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877283.9U CN203629745U (en) | 2013-12-26 | 2013-12-26 | Pressure sensor protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877283.9U CN203629745U (en) | 2013-12-26 | 2013-12-26 | Pressure sensor protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629745U true CN203629745U (en) | 2014-06-04 |
Family
ID=50816211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320877283.9U Expired - Fee Related CN203629745U (en) | 2013-12-26 | 2013-12-26 | Pressure sensor protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712735A (en) * | 2013-12-26 | 2014-04-09 | 中国水利水电科学研究院 | Pressure sensor protection device and assembly method thereof |
-
2013
- 2013-12-26 CN CN201320877283.9U patent/CN203629745U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712735A (en) * | 2013-12-26 | 2014-04-09 | 中国水利水电科学研究院 | Pressure sensor protection device and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20171226 |