CN2242454Y - Shock-resistant electric resistance long distance sensing pressure meter - Google Patents
Shock-resistant electric resistance long distance sensing pressure meter Download PDFInfo
- Publication number
- CN2242454Y CN2242454Y CN 95232812 CN95232812U CN2242454Y CN 2242454 Y CN2242454 Y CN 2242454Y CN 95232812 CN95232812 CN 95232812 CN 95232812 U CN95232812 U CN 95232812U CN 2242454 Y CN2242454 Y CN 2242454Y
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- housing
- utility
- model
- shock
- electric resistance
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- Expired - Fee Related
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Abstract
The utility model provides a shock-resistant electric resistance long distance sensing pressure meter, which comprises a housing, a driving mechanism with pointers, and a potentiometer for windings which is connected with a male plug for sealing, wherein, the driving mechanism with pointers is positioned in the housing; silicone oil is sealed and positioned in the housing which is composed of a full hermitic surface cover and a surface cover for sealing transparent glass by a sealing gasket. The utility model adopts a full hermitic oil-filled structure, so the utility model overcomes the disadvantages existing in the prior art that abrasions are easily made, and the operation is jiggly; the service life and the accuracy of measurement of the utility model is visibly enhanced.
Description
The utility model relates to a kind of pressure measuring instruments, particularly a kind of shatter-proof resistance teletransmission tensimeter that steel or corrosion of copper alloy or pressure mediums such as incorrosive liquid, gas are measured that is applicable to.
At present, in pressure system, resistance teletransmission tensimeter commonly used does not play the pressure mediums such as liquid, gas of corrosive attack and measures to steel or aldary.It both can be by the force value of directly reading measured medium on the dial plate, also can be supporting with secondary instrument, realize centralized detecting or far distance controlled.On the gearing of this device, install one group of slide wire resistance.During pressure measurement, the brush in the slide wire resistance slides along the wound potentiometer surface under the gear train rotating shaft drives, make by the variation of measuring pressure in the pointer indication, convert resistance variations to, the output electric signal, teletransmission shows to secondary instrument, to realize centralized detecting and far distance controlled.But this tensimeter produces unlubricated friction because brush directly contacts with the potentiometer coil surface, and is not only easy to wear, reduces its serviceable life, and is subject to the external force effect in the use of vibration occasion, makes its operation not steady, influences its measuring accuracy.
The purpose of this utility model provides a kind of shatter-proof resistance teletransmission tensimeter, and it adopts hermetically sealed filling type structure, overcome effectively that prior art exists easy to wear, move jiggly shortcoming, can significantly improve its serviceable life and measuring accuracy.
The purpose of this utility model is achieved in that this device comprises housing and is assembled in the gear train that has pointer in the housing and the wound potentiometer that joins with the encapsulation plug, wherein cover in the housing that constitutes, utilize sealing gasket to be packaged with silicone oil by the table of totally-enclosed watchcase with the encapsulation clear glass.
Because the utility model adopts the table lid of totally-enclosed watchcase and encapsulation clear glass, so utilize the housing of sealing gasket encapsulation silicone oil, can guarantee oil-proof, gear train and wound potentiometer all are immersed in the silicone oil, can make each parts obtain sufficient lubrication, reduce wear, can make its secluding air again, prevent corrosion, thereby improve its serviceable life.In addition, because of between wound potentiometer brush and potentiometer coil surface silicone oil being arranged, so when reducing wear, can also utilize the damping action of silicone oil, overcome former brush and directly contact with the potentiometer coil surface, be subject to the external force effect in the vibration place, make it move jiggly disadvantage, have advantage shatter-proof, that operate steadily, significantly improve measuring accuracy, therefore, the utility model has been widened the manometric range of application of existing resistance teletransmission.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a kind of concrete structure synoptic diagram of the utility model.
Fig. 2 is the cut-open view of Fig. 1 along the A-A line.
Describe concrete structure of the present utility model in detail according to Fig. 1-2.This device comprise housing, the gear train that constitutes by watchcase 1 and Biao Gai 2 and install its gear upper cover plate and with lead and the wound potentiometer 3 that joins of encapsulation plug, be packed in brush 8 in the rotating shaft 6, pointer 11, dial plate 9, silicone oil 7 etc.Wherein totally-enclosed watchcase 1 covers 2 with the table of encapsulation clear glass 10, utilizes sealing gasket 12 to be packaged together.Pressure measurement main body 5 adopts fluid sealant 4 sealings with watchcase 1 junction.Be encapsulated in and be filled with silicone oil 7 in the housing.Utilize the lubricated and damping action of silicone oil 7, reduce the wearing and tearing of brush and improve brush, reach shatter-proof purpose in vibration place traveling comfort.
During use, this device is positioned on need measuring media pressure part, when being changed by measuring pressure, gear train drives pointer 11 and rotates, and directly indicates pressure medium on dial plate 9.Simultaneously, it is following lubricating of silicone oil 7 to drive the brush 8 that is packed in the rotating shaft 6, slides along potentiometer 3 coil surfaces, make by the variation of measuring pressure and convert changes in resistance to, export one with the electric signal that is directly proportional by measuring pressure, secondary instrument is given in teletransmission, realizes centralized detecting or far distance controlled.
Claims (2)
1, a kind of shatter-proof resistance teletransmission tensimeter, comprise housing and be assembled in the gear train that has pointer in the housing and the wound potentiometer that joins with the encapsulation plug, it is characterized in that covering in the housing that constitutes, utilize sealing gasket to be packaged with silicone oil by the table of totally-enclosed watchcase with the encapsulation clear glass.
2, tensimeter according to claim 1, the fluid sealant sealing is adopted in the pressure measurement main body and the watchcase junction that it is characterized in that being assembled in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232812 CN2242454Y (en) | 1995-11-28 | 1995-11-28 | Shock-resistant electric resistance long distance sensing pressure meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232812 CN2242454Y (en) | 1995-11-28 | 1995-11-28 | Shock-resistant electric resistance long distance sensing pressure meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242454Y true CN2242454Y (en) | 1996-12-11 |
Family
ID=33877084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95232812 Expired - Fee Related CN2242454Y (en) | 1995-11-28 | 1995-11-28 | Shock-resistant electric resistance long distance sensing pressure meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242454Y (en) |
Cited By (2)
| 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 |
| CN110459430A (en) * | 2019-09-03 | 2019-11-15 | 上海卓电电气有限公司 | A kind of gas density relay |
-
1995
- 1995-11-28 CN CN 95232812 patent/CN2242454Y/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN110459430A (en) * | 2019-09-03 | 2019-11-15 | 上海卓电电气有限公司 | A kind of gas density relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |